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-rw-r--r--src/plugins/ioam/dir.dox18
-rw-r--r--src/plugins/ioam/encap/ip6_ioam_e2e.c232
-rw-r--r--src/plugins/ioam/encap/ip6_ioam_e2e.h47
-rw-r--r--src/plugins/ioam/encap/ip6_ioam_pot.c276
-rw-r--r--src/plugins/ioam/encap/ip6_ioam_seqno.c109
-rw-r--r--src/plugins/ioam/encap/ip6_ioam_seqno.h70
-rw-r--r--src/plugins/ioam/encap/ip6_ioam_seqno_analyse.c141
-rw-r--r--src/plugins/ioam/encap/ip6_ioam_trace.c438
-rw-r--r--src/plugins/ioam/export-common/ioam_export.h616
-rw-r--r--src/plugins/ioam/export-vxlan-gpe/vxlan_gpe_ioam_export.api42
-rw-r--r--src/plugins/ioam/export-vxlan-gpe/vxlan_gpe_ioam_export.c271
-rw-r--r--src/plugins/ioam/export-vxlan-gpe/vxlan_gpe_ioam_export_all_api_h.h16
-rw-r--r--src/plugins/ioam/export-vxlan-gpe/vxlan_gpe_ioam_export_msg_enum.h28
-rw-r--r--src/plugins/ioam/export-vxlan-gpe/vxlan_gpe_ioam_export_test.c215
-rw-r--r--src/plugins/ioam/export-vxlan-gpe/vxlan_gpe_ioam_export_thread.c49
-rw-r--r--src/plugins/ioam/export-vxlan-gpe/vxlan_gpe_node.c162
-rw-r--r--src/plugins/ioam/export/ioam_export.api42
-rw-r--r--src/plugins/ioam/export/ioam_export.c282
-rw-r--r--src/plugins/ioam/export/ioam_export_all_api_h.h16
-rw-r--r--src/plugins/ioam/export/ioam_export_msg_enum.h28
-rw-r--r--src/plugins/ioam/export/ioam_export_test.c206
-rw-r--r--src/plugins/ioam/export/ioam_export_thread.c38
-rw-r--r--src/plugins/ioam/export/node.c151
-rw-r--r--src/plugins/ioam/ioam_plugin_doc.md464
-rw-r--r--src/plugins/ioam/lib-pot/math64.h159
-rw-r--r--src/plugins/ioam/lib-pot/pot.api133
-rw-r--r--src/plugins/ioam/lib-pot/pot_all_api_h.h16
-rw-r--r--src/plugins/ioam/lib-pot/pot_api.c292
-rw-r--r--src/plugins/ioam/lib-pot/pot_msg_enum.h28
-rw-r--r--src/plugins/ioam/lib-pot/pot_test.c365
-rw-r--r--src/plugins/ioam/lib-pot/pot_util.c445
-rw-r--r--src/plugins/ioam/lib-pot/pot_util.h195
-rw-r--r--src/plugins/ioam/lib-trace/trace.api92
-rw-r--r--src/plugins/ioam/lib-trace/trace_all_api_h.h16
-rw-r--r--src/plugins/ioam/lib-trace/trace_api.c252
-rw-r--r--src/plugins/ioam/lib-trace/trace_msg_enum.h28
-rw-r--r--src/plugins/ioam/lib-trace/trace_test.c292
-rw-r--r--src/plugins/ioam/lib-trace/trace_util.c206
-rw-r--r--src/plugins/ioam/lib-trace/trace_util.h247
-rw-r--r--src/plugins/ioam/lib-vxlan-gpe/ioam_decap.c223
-rw-r--r--src/plugins/ioam/lib-vxlan-gpe/ioam_encap.c194
-rw-r--r--src/plugins/ioam/lib-vxlan-gpe/ioam_pop.c353
-rw-r--r--src/plugins/ioam/lib-vxlan-gpe/ioam_transit.c188
-rw-r--r--src/plugins/ioam/lib-vxlan-gpe/ioam_vxlan_gpe.api181
-rw-r--r--src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_all_api_h.h16
-rw-r--r--src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_api.c378
-rw-r--r--src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_ioam.c773
-rw-r--r--src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_ioam.h183
-rw-r--r--src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_ioam_packet.h61
-rw-r--r--src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_ioam_trace.c552
-rw-r--r--src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_ioam_util.h172
-rw-r--r--src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_msg_enum.h28
-rw-r--r--src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_test.c600
53 files changed, 10625 insertions, 0 deletions
diff --git a/src/plugins/ioam/dir.dox b/src/plugins/ioam/dir.dox
new file mode 100644
index 00000000000..f3389b52c3e
--- /dev/null
+++ b/src/plugins/ioam/dir.dox
@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ @dir
+ @brief Inband OAM (iOAM) implementation
+*/
diff --git a/src/plugins/ioam/encap/ip6_ioam_e2e.c b/src/plugins/ioam/encap/ip6_ioam_e2e.c
new file mode 100644
index 00000000000..0839cdceca7
--- /dev/null
+++ b/src/plugins/ioam/encap/ip6_ioam_e2e.c
@@ -0,0 +1,232 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <vlib/vlib.h>
+#include <vnet/vnet.h>
+#include <vnet/pg/pg.h>
+#include <vppinfra/error.h>
+
+#include <vnet/ip/ip.h>
+
+#include <vppinfra/hash.h>
+#include <vppinfra/error.h>
+#include <vppinfra/elog.h>
+
+#include <vnet/ip/ip6_hop_by_hop.h>
+#include <vnet/plugin/plugin.h>
+
+#include "ip6_ioam_e2e.h"
+
+ioam_e2e_main_t ioam_e2e_main;
+
+static u8 * ioam_e2e_trace_handler (u8 * s,
+ ip6_hop_by_hop_option_t *opt)
+{
+ ioam_e2e_option_t * e2e = (ioam_e2e_option_t *)opt;
+ u32 seqno = 0;
+
+ if (e2e)
+ {
+ seqno = clib_net_to_host_u32 (e2e->e2e_data);
+ }
+
+ s = format (s, "SeqNo = 0x%Lx", seqno);
+ return s;
+}
+
+int
+ioam_e2e_config_handler (void *data, u8 disable)
+{
+ int *analyse = data;
+
+ /* Register hanlders if enabled */
+ if (!disable)
+ {
+ /* If encap node register for encap handler */
+ if (0 == *analyse)
+ {
+ if (ip6_hbh_register_option(HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE,
+ ioam_seqno_encap_handler,
+ ioam_e2e_trace_handler) < 0)
+ {
+ return (-1);
+ }
+ }
+ /* If analyze node then register for decap handler */
+ else
+ {
+ if (ip6_hbh_pop_register_option(HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE,
+ ioam_seqno_decap_handler) < 0)
+ {
+ return (-1);
+ }
+ }
+ return 0;
+ }
+
+ /* UnRegister handlers */
+ (void) ip6_hbh_unregister_option(HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE);
+ (void) ip6_hbh_pop_unregister_option(HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE);
+ return 0;
+}
+
+int
+ioam_e2e_rewrite_handler (u8 *rewrite_string,
+ u8 *rewrite_size)
+{
+ ioam_e2e_option_t *e2e_option;
+
+ if (rewrite_string && *rewrite_size == sizeof(ioam_e2e_option_t))
+ {
+ e2e_option = (ioam_e2e_option_t *)rewrite_string;
+ e2e_option->hdr.type = HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE
+ | HBH_OPTION_TYPE_SKIP_UNKNOWN;
+ e2e_option->hdr.length = sizeof (ioam_e2e_option_t) -
+ sizeof (ip6_hop_by_hop_option_t);
+ return(0);
+ }
+ return(-1);
+}
+
+u32
+ioam_e2e_flow_handler (u32 ctx, u8 add)
+{
+ ioam_e2e_data_t *data;
+ u16 i;
+
+ if (add)
+ {
+ pool_get(ioam_e2e_main.e2e_data, data);
+ data->flow_ctx = ctx;
+ ioam_seqno_init_bitmap(&data->seqno_data);
+ return ((u32) (data - ioam_e2e_main.e2e_data));
+ }
+
+ /* Delete case */
+ for (i = 0; i < vec_len(ioam_e2e_main.e2e_data); i++)
+ {
+ if (pool_is_free_index(ioam_e2e_main.e2e_data, i))
+ continue;
+
+ data = pool_elt_at_index(ioam_e2e_main.e2e_data, i);
+ if (data && (data->flow_ctx == ctx))
+ {
+ pool_put_index(ioam_e2e_main.e2e_data, i);
+ return (0);
+ }
+ }
+ return 0;
+}
+
+static clib_error_t *
+ioam_show_e2e_cmd_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ ioam_e2e_data_t *e2e_data;
+ u8 *s = 0;
+ int i;
+
+ vec_reset_length(s);
+
+ s = format(0, "IOAM E2E information: \n");
+ for (i = 0; i < vec_len(ioam_e2e_main.e2e_data); i++)
+ {
+ if (pool_is_free_index(ioam_e2e_main.e2e_data, i))
+ continue;
+
+ e2e_data = pool_elt_at_index(ioam_e2e_main.e2e_data, i);
+ s = format(s, "Flow name: %s\n", get_flow_name_from_flow_ctx(e2e_data->flow_ctx));
+
+ s = show_ioam_seqno_cmd_fn(s,
+ &e2e_data->seqno_data,
+ !IOAM_DEAP_ENABLED(e2e_data->flow_ctx));
+ }
+
+ vlib_cli_output(vm, "%v", s);
+ return 0;
+}
+
+
+VLIB_CLI_COMMAND (ioam_show_e2e_cmd, static) = {
+ .path = "show ioam e2e ",
+ .short_help = "show ioam e2e information",
+ .function = ioam_show_e2e_cmd_fn,
+};
+
+/*
+ * This routine exists to convince the vlib plugin framework that
+ * we haven't accidentally copied a random .dll into the plugin directory.
+ *
+ * Also collects global variable pointers passed from the vpp engine
+ */
+clib_error_t *
+vlib_plugin_register (vlib_main_t * vm, vnet_plugin_handoff_t * h,
+ int from_early_init)
+{
+ clib_error_t * error = 0;
+
+ ioam_e2e_main.vlib_main = vm;
+ ioam_e2e_main.vnet_main = h->vnet_main;
+ return error;
+}
+
+/*
+ * Init handler E2E headet handling.
+ * Init hanlder registers encap, decap, trace and Rewrite handlers.
+ */
+static clib_error_t *
+ioam_e2e_init (vlib_main_t * vm)
+{
+ clib_error_t * error;
+
+ if ((error = vlib_call_init_function (vm, ip6_hop_by_hop_ioam_init)))
+ {
+ return(error);
+ }
+
+ /*
+ * As of now we have only PPC under E2E header.
+ */
+ if (ip6_hbh_config_handler_register(HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE,
+ ioam_e2e_config_handler) < 0)
+ {
+ return (clib_error_create("Registration of "
+ "HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE for rewrite failed"));
+ }
+
+ if (ip6_hbh_add_register_option(HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE,
+ sizeof(ioam_e2e_option_t),
+ ioam_e2e_rewrite_handler) < 0)
+ {
+ return (clib_error_create("Registration of "
+ "HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE for rewrite failed"));
+ }
+
+ if (ip6_hbh_flow_handler_register(HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE,
+ ioam_e2e_flow_handler) < 0)
+ {
+ return (clib_error_create("Registration of "
+ "HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE Flow handler failed"));
+ }
+
+ return (0);
+}
+
+/*
+ * Init function for the E2E lib.
+ * ip6_hop_by_hop_ioam_e2e_init gets called during init.
+ */
+VLIB_INIT_FUNCTION (ioam_e2e_init);
diff --git a/src/plugins/ioam/encap/ip6_ioam_e2e.h b/src/plugins/ioam/encap/ip6_ioam_e2e.h
new file mode 100644
index 00000000000..18f35f80c60
--- /dev/null
+++ b/src/plugins/ioam/encap/ip6_ioam_e2e.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __included_ip6_ioam_e2e_h__
+#define __included_ip6_ioam_e2e_h__
+
+#include "ip6_ioam_seqno.h"
+
+typedef struct ioam_e2e_data_t_ {
+ u32 flow_ctx;
+ u32 pad;
+ ioam_seqno_data seqno_data;
+} ioam_e2e_data_t;
+
+typedef struct {
+ ioam_e2e_data_t *e2e_data;
+ vlib_main_t *vlib_main;
+ vnet_main_t *vnet_main;
+} ioam_e2e_main_t;
+
+extern ioam_e2e_main_t ioam_e2e_main;
+
+static inline ioam_seqno_data *
+ioam_e2ec_get_seqno_data_from_flow_ctx (u32 flow_ctx)
+{
+ ioam_e2e_data_t *data = NULL;
+ u32 index;
+
+ index = get_flow_data_from_flow_ctx(flow_ctx,
+ HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE);
+ data = &ioam_e2e_main.e2e_data[index];
+ return &(data->seqno_data);
+}
+
+#endif /* __included_ioam_e2e_h__ */
diff --git a/src/plugins/ioam/encap/ip6_ioam_pot.c b/src/plugins/ioam/encap/ip6_ioam_pot.c
new file mode 100644
index 00000000000..05f42c91d0f
--- /dev/null
+++ b/src/plugins/ioam/encap/ip6_ioam_pot.c
@@ -0,0 +1,276 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <vlib/vlib.h>
+#include <vnet/vnet.h>
+#include <vnet/pg/pg.h>
+#include <vppinfra/error.h>
+
+#include <vnet/ip/ip6.h>
+#include <vnet/ip/ip6_hop_by_hop.h>
+#include <vnet/ip/ip6_hop_by_hop_packet.h>
+
+#include <vppinfra/hash.h>
+#include <vppinfra/error.h>
+#include <vppinfra/elog.h>
+
+#include <ioam/lib-pot/pot_util.h>
+
+typedef CLIB_PACKED(struct {
+ ip6_hop_by_hop_option_t hdr;
+ u8 pot_type;
+#define PROFILE_ID_MASK 0xF
+ u8 reserved_profile_id; /* 4 bits reserved, 4 bits to carry profile id */
+ u64 random;
+ u64 cumulative;
+}) ioam_pot_option_t;
+
+#define foreach_ip6_hop_by_hop_ioam_pot_stats \
+ _(PROCESSED, "Pkts with ip6 hop-by-hop pot options") \
+ _(PROFILE_MISS, "Pkts with ip6 hop-by-hop pot options but no profile set") \
+ _(PASSED, "Pkts with POT in Policy") \
+ _(FAILED, "Pkts with POT out of Policy")
+
+static char * ip6_hop_by_hop_ioam_pot_stats_strings[] = {
+#define _(sym,string) string,
+ foreach_ip6_hop_by_hop_ioam_pot_stats
+#undef _
+};
+
+typedef enum {
+#define _(sym,str) IP6_IOAM_POT_##sym,
+ foreach_ip6_hop_by_hop_ioam_pot_stats
+#undef _
+ IP6_IOAM_POT_N_STATS,
+} ip6_ioam_pot_stats_t;
+
+typedef struct {
+ /* stats */
+ u64 counters[ARRAY_LEN(ip6_hop_by_hop_ioam_pot_stats_strings)];
+
+ /* convenience */
+ vlib_main_t * vlib_main;
+ vnet_main_t * vnet_main;
+} ip6_hop_by_hop_ioam_pot_main_t;
+
+ip6_hop_by_hop_ioam_pot_main_t ip6_hop_by_hop_ioam_pot_main;
+
+always_inline void
+ip6_ioam_stats_increment_counter (u32 counter_index, u64 increment)
+{
+ ip6_hop_by_hop_ioam_pot_main_t *hm = &ip6_hop_by_hop_ioam_pot_main;
+
+ hm->counters[counter_index] += increment;
+}
+
+
+static u8 * format_ioam_pot (u8 * s, va_list * args)
+{
+ ioam_pot_option_t * pot0 = va_arg (*args, ioam_pot_option_t *);
+ u64 random, cumulative;
+ random = cumulative = 0;
+ if (pot0)
+ {
+ random = clib_net_to_host_u64 (pot0->random);
+ cumulative = clib_net_to_host_u64 (pot0->cumulative);
+ }
+
+ s = format (s, "random = 0x%Lx, Cumulative = 0x%Lx, Index = 0x%x",
+ random, cumulative, pot0 ? pot0->reserved_profile_id : ~0);
+ return s;
+}
+
+u8 *
+ip6_hbh_ioam_proof_of_transit_trace_handler (u8 *s, ip6_hop_by_hop_option_t *opt)
+{
+ ioam_pot_option_t *pot;
+
+ s = format (s, " POT opt present\n");
+ pot = (ioam_pot_option_t *) opt;
+ s = format (s, " %U\n", format_ioam_pot, pot);
+ return (s);
+}
+
+int
+ip6_hbh_ioam_proof_of_transit_handler (vlib_buffer_t *b,
+ ip6_header_t *ip,
+ ip6_hop_by_hop_option_t *opt0)
+{
+ ioam_pot_option_t * pot0;
+ u64 random = 0, cumulative = 0;
+ int rv = 0;
+ u8 pot_profile_index;
+ pot_profile *pot_profile = 0, *new_profile = 0;
+ u8 pot_encap = 0;
+
+ pot0 = (ioam_pot_option_t *) opt0;
+ pot_encap = (pot0->random == 0);
+ pot_profile_index = pot_profile_get_active_id();
+ pot_profile = pot_profile_get_active();
+ if (pot_encap && PREDICT_FALSE(!pot_profile))
+ {
+ ip6_ioam_stats_increment_counter (IP6_IOAM_POT_PROFILE_MISS, 1);
+ return(-1);
+ }
+ if (pot_encap)
+ {
+ pot0->reserved_profile_id =
+ pot_profile_index & PROFILE_ID_MASK;
+ pot_profile_incr_usage_stats(pot_profile);
+ }
+ else
+ { /* Non encap node */
+ if (PREDICT_FALSE(pot0->reserved_profile_id !=
+ pot_profile_index || pot_profile == 0))
+ {
+ /* New profile announced by encap node. */
+ new_profile =
+ pot_profile_find(pot0->reserved_profile_id);
+ if (PREDICT_FALSE(new_profile == 0 ||
+ new_profile->valid == 0))
+ {
+ ip6_ioam_stats_increment_counter (IP6_IOAM_POT_PROFILE_MISS, 1);
+ return(-1);
+ }
+ else
+ {
+ pot_profile_index = pot0->reserved_profile_id;
+ pot_profile = new_profile;
+ pot_profile_set_active(pot_profile_index);
+ pot_profile_reset_usage_stats(pot_profile);
+ }
+ }
+ pot_profile_incr_usage_stats(pot_profile);
+ }
+
+ if (pot0->random == 0)
+ {
+ pot0->random = clib_host_to_net_u64(pot_generate_random(pot_profile));
+ pot0->cumulative = 0;
+ }
+ random = clib_net_to_host_u64(pot0->random);
+ cumulative = clib_net_to_host_u64(pot0->cumulative);
+ pot0->cumulative = clib_host_to_net_u64(
+ pot_update_cumulative(pot_profile,
+ cumulative,
+ random));
+ ip6_ioam_stats_increment_counter (IP6_IOAM_POT_PROCESSED, 1);
+
+ return (rv);
+}
+
+int
+ip6_hbh_ioam_proof_of_transit_pop_handler (vlib_buffer_t *b, ip6_header_t *ip,
+ ip6_hop_by_hop_option_t *opt0)
+{
+ ioam_pot_option_t * pot0;
+ u64 random = 0;
+ u64 cumulative = 0;
+ int rv = 0;
+ pot_profile *pot_profile = 0;
+ u8 result = 0;
+
+ pot0 = (ioam_pot_option_t *) opt0;
+ random = clib_net_to_host_u64(pot0->random);
+ cumulative = clib_net_to_host_u64(pot0->cumulative);
+ pot_profile = pot_profile_get_active();
+ result = pot_validate (pot_profile,
+ cumulative, random);
+
+ if (result == 1)
+ {
+ ip6_ioam_stats_increment_counter (IP6_IOAM_POT_PASSED, 1);
+ }
+ else
+ {
+ ip6_ioam_stats_increment_counter (IP6_IOAM_POT_FAILED, 1);
+ }
+ return (rv);
+}
+
+int ip6_hop_by_hop_ioam_pot_rewrite_handler (u8 *rewrite_string, u8 *rewrite_size)
+{
+ ioam_pot_option_t * pot_option;
+ if (rewrite_string && *rewrite_size == sizeof(ioam_pot_option_t))
+ {
+ pot_option = (ioam_pot_option_t *)rewrite_string;
+ pot_option->hdr.type = HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT
+ | HBH_OPTION_TYPE_DATA_CHANGE_ENROUTE;
+ pot_option->hdr.length = sizeof (ioam_pot_option_t) -
+ sizeof (ip6_hop_by_hop_option_t);
+ return(0);
+ }
+ return(-1);
+}
+
+static clib_error_t *
+ip6_show_ioam_pot_cmd_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ ip6_hop_by_hop_ioam_pot_main_t *hm = &ip6_hop_by_hop_ioam_pot_main;
+ u8 *s = 0;
+ int i = 0;
+
+ for ( i = 0; i < IP6_IOAM_POT_N_STATS; i++)
+ {
+ s = format(s, " %s - %lu\n", ip6_hop_by_hop_ioam_pot_stats_strings[i],
+ hm->counters[i]);
+ }
+
+ vlib_cli_output(vm, "%v", s);
+ vec_free(s);
+ return 0;
+}
+
+
+VLIB_CLI_COMMAND (ip6_show_ioam_pot_cmd, static) = {
+ .path = "show ioam pot",
+ .short_help = "iOAM pot statistics",
+ .function = ip6_show_ioam_pot_cmd_fn,
+};
+
+
+static clib_error_t *
+ip6_hop_by_hop_ioam_pot_init (vlib_main_t * vm)
+{
+ ip6_hop_by_hop_ioam_pot_main_t * hm = &ip6_hop_by_hop_ioam_pot_main;
+ clib_error_t * error;
+
+ if ((error = vlib_call_init_function (vm, ip6_hop_by_hop_ioam_init)))
+ return(error);
+
+ hm->vlib_main = vm;
+ hm->vnet_main = vnet_get_main();
+ memset(hm->counters, 0, sizeof(hm->counters));
+
+ if (ip6_hbh_register_option(HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT, ip6_hbh_ioam_proof_of_transit_handler,
+ ip6_hbh_ioam_proof_of_transit_trace_handler) < 0)
+ return (clib_error_create("registration of HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT failed"));
+
+ if (ip6_hbh_add_register_option(HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT,
+ sizeof(ioam_pot_option_t),
+ ip6_hop_by_hop_ioam_pot_rewrite_handler) < 0)
+ return (clib_error_create("registration of HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT for rewrite failed"));
+
+ if (ip6_hbh_pop_register_option(HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT,
+ ip6_hbh_ioam_proof_of_transit_pop_handler) < 0)
+ return (clib_error_create("registration of HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT POP failed"));
+
+ return (0);
+}
+
+VLIB_INIT_FUNCTION (ip6_hop_by_hop_ioam_pot_init);
+
+
diff --git a/src/plugins/ioam/encap/ip6_ioam_seqno.c b/src/plugins/ioam/encap/ip6_ioam_seqno.c
new file mode 100644
index 00000000000..0b4d4192975
--- /dev/null
+++ b/src/plugins/ioam/encap/ip6_ioam_seqno.c
@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#include <vlib/vlib.h>
+#include <vnet/vnet.h>
+#include <vnet/pg/pg.h>
+#include <vppinfra/error.h>
+
+#include <vnet/ip/ip.h>
+
+#include <vppinfra/hash.h>
+#include <vppinfra/error.h>
+#include <vppinfra/elog.h>
+
+#include "ip6_ioam_seqno.h"
+#include "ip6_ioam_e2e.h"
+
+ioam_seqno_data_main_t ioam_seqno_main;
+
+void ioam_seqno_init_bitmap (ioam_seqno_data *data)
+{
+ seqno_bitmap *bitmap = &data->seqno_rx.bitmap;
+ bitmap->window_size = SEQNO_WINDOW_SIZE;
+ bitmap->array_size = SEQNO_WINDOW_ARRAY_SIZE;
+ bitmap->mask = 32 * SEQNO_WINDOW_ARRAY_SIZE - 1;
+ bitmap->array[0] = 0x00000000;/* pretend we haven seen sequence numbers 0*/
+ bitmap->highest = 0;
+
+ data->seq_num = 0;
+ return ;
+}
+
+/*
+ * This Routine gets called from IPv6 hop-by-hop option handling.
+ * Only if we are encap node, then add PPC data.
+ * On a Transit(MID) node we dont do anything with E2E headers.
+ * On decap node decap is handled by seperate function.
+ */
+int
+ioam_seqno_encap_handler (vlib_buffer_t *b, ip6_header_t *ip,
+ ip6_hop_by_hop_option_t *opt)
+{
+ u32 opaque_index = vnet_buffer(b)->l2_classify.opaque_index;
+ ioam_e2e_option_t * e2e;
+ int rv = 0;
+ ioam_seqno_data *data;
+
+ data = ioam_e2ec_get_seqno_data_from_flow_ctx(opaque_index);
+ e2e = (ioam_e2e_option_t *) opt;
+ e2e->e2e_data = clib_host_to_net_u32(++data->seq_num);
+
+ return (rv);
+}
+
+/*
+ * This Routine gets called on POP/Decap node.
+ */
+int
+ioam_seqno_decap_handler (vlib_buffer_t *b, ip6_header_t *ip,
+ ip6_hop_by_hop_option_t *opt)
+{
+ u32 opaque_index = vnet_buffer(b)->l2_classify.opaque_index;
+ ioam_e2e_option_t * e2e;
+ int rv = 0;
+ ioam_seqno_data *data;
+
+ data = ioam_e2ec_get_seqno_data_from_flow_ctx(opaque_index);
+ e2e = (ioam_e2e_option_t *) opt;
+ ioam_analyze_seqno(&data->seqno_rx, (u64) clib_net_to_host_u32(e2e->e2e_data));
+
+ return (rv);
+}
+
+u8 *
+show_ioam_seqno_cmd_fn (u8 *s, ioam_seqno_data *seqno_data, u8 enc)
+{
+ seqno_rx_info *rx;
+
+ s = format(s, "SeqNo Data:\n");
+ if (enc)
+ {
+ s = format(s, " Current Seq. Number : %llu\n", seqno_data->seq_num);
+ }
+ else
+ {
+ rx = &seqno_data->seqno_rx;
+ s = format(s, " Highest Seq. Number : %llu\n", rx->bitmap.highest);
+ s = format(s, " Packets received : %llu\n", rx->rx_packets);
+ s = format(s, " Lost packets : %llu\n", rx->lost_packets);
+ s = format(s, " Reordered packets : %llu\n", rx->reordered_packets);
+ s = format(s, " Duplicate packets : %llu\n", rx->dup_packets);
+ }
+
+ format(s, "\n");
+ return s;
+}
diff --git a/src/plugins/ioam/encap/ip6_ioam_seqno.h b/src/plugins/ioam/encap/ip6_ioam_seqno.h
new file mode 100644
index 00000000000..13a84db0d71
--- /dev/null
+++ b/src/plugins/ioam/encap/ip6_ioam_seqno.h
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __included_ip6_ioam_seqno_h__
+#define __included_ip6_ioam_seqno_h__
+
+#include <vnet/ip/ip6_packet.h>
+#include <vnet/ip/ip6_hop_by_hop.h>
+
+#define SEQ_CHECK_VALUE 0x80000000 /* for seq number wraparound detection */
+
+#define SEQNO_WINDOW_SIZE 2048
+#define SEQNO_WINDOW_ARRAY_SIZE 64
+
+typedef struct seqno_bitmap_ {
+ u32 window_size;
+ u32 array_size;
+ u32 mask;
+ u32 pad;
+ u64 highest;
+ u64 array[SEQNO_WINDOW_ARRAY_SIZE]; /* Will be alloc to array_size */
+} seqno_bitmap;
+
+typedef struct seqno_rx_info_ {
+ u64 rx_packets;
+ u64 lost_packets;
+ u64 reordered_packets;
+ u64 dup_packets;
+ seqno_bitmap bitmap;
+} seqno_rx_info;
+
+/* This structure is 64-byte aligned */
+typedef struct ioam_seqno_data_ {
+ union {
+ u32 seq_num; /* Useful only for encap node */
+ seqno_rx_info seqno_rx;
+ };
+} ioam_seqno_data;
+
+typedef struct ioam_seqno_data_main_t_ {
+ ioam_seqno_data *seqno_data;
+} ioam_seqno_data_main_t;
+
+void ioam_seqno_init_bitmap(ioam_seqno_data *data);
+
+int ioam_seqno_encap_handler(vlib_buffer_t *b, ip6_header_t *ip,
+ ip6_hop_by_hop_option_t *opt);
+
+int
+ioam_seqno_decap_handler(vlib_buffer_t *b, ip6_header_t *ip,
+ ip6_hop_by_hop_option_t *opt);
+
+void ioam_analyze_seqno(seqno_rx_info *ppc_rx, u64 seqno);
+
+u8 *
+show_ioam_seqno_cmd_fn(u8 *s, ioam_seqno_data *seqno_data, u8 enc);
+
+#endif
diff --git a/src/plugins/ioam/encap/ip6_ioam_seqno_analyse.c b/src/plugins/ioam/encap/ip6_ioam_seqno_analyse.c
new file mode 100644
index 00000000000..4638871c224
--- /dev/null
+++ b/src/plugins/ioam/encap/ip6_ioam_seqno_analyse.c
@@ -0,0 +1,141 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <vnet/vnet.h>
+#include "ip6_ioam_seqno.h"
+
+static inline void BIT_SET (u64 *p, u32 n)
+{
+ p[ n>>5 ] |= (1 << (n&31));
+}
+
+static inline int BIT_TEST (u64 *p, u32 n)
+{
+ return p[ n>>5 ] & (1 << (n&31));
+}
+
+static void BIT_CLEAR (u64 *p, u64 start, int num_bits, u32 mask)
+{
+ int n, t;
+ int start_index = (start >> 5);
+ int mask_index = (mask >> 5);
+
+ start_index &= mask_index;
+ if (start & 0x1f)
+ {
+ int start_bit = (start & 0x1f);
+
+ n = (1 << start_bit)-1;
+ t = start_bit + num_bits;
+ if (t < 32)
+ {
+ n |= ~((1 << t)-1);
+ p[ start_index ] &= n;
+ return;
+ }
+ p[ start_index ] &= n;
+ start_index = (start_index + 1) & mask_index;
+ num_bits -= (32 - start_bit);
+ }
+ while (num_bits >= 32)
+ {
+ p[ start_index ] = 0;
+ start_index = (start_index + 1) & mask_index;
+ num_bits -= 32;
+ }
+ n = ~((1 << num_bits) - 1);
+ p[ start_index ] &= n;
+}
+
+static inline u8 seqno_check_wraparound(u32 a, u32 b)
+{
+ if ((a != b) && (a > b) && ((a - b) > SEQ_CHECK_VALUE))
+ {
+ return 1;
+ }
+ return 0;
+}
+
+/*
+ * Function to analyze the PPC value recevied.
+ * - Updates the bitmap with received sequence number
+ * - counts the received/lost/duplicate/reordered packets
+ */
+void ioam_analyze_seqno (seqno_rx_info *seqno_rx, u64 seqno)
+{
+ int diff;
+ static int peer_dead_count;
+ seqno_bitmap *bitmap = &seqno_rx->bitmap;
+
+ seqno_rx->rx_packets++;
+
+ if (seqno > bitmap->highest)
+ { /* new larger sequence number */
+ peer_dead_count = 0;
+ diff = seqno - bitmap->highest;
+ if (diff < bitmap->window_size)
+ {
+ if (diff > 1)
+ { /* diff==1 is *such* a common case it's a win to optimize it */
+ BIT_CLEAR(bitmap->array, bitmap->highest+1, diff-1, bitmap->mask);
+ seqno_rx->lost_packets += diff -1;
+ }
+ }
+ else
+ {
+ seqno_rx->lost_packets += diff -1;
+ memset( bitmap->array, 0, bitmap->array_size * sizeof(u64) );
+ }
+ BIT_SET(bitmap->array, seqno & bitmap->mask);
+ bitmap->highest = seqno;
+ return;
+ }
+
+ /* we've seen a bigger seq number before */
+ diff = bitmap->highest - seqno;
+ if (diff >= bitmap->window_size)
+ {
+ if (seqno_check_wraparound(bitmap->highest, seqno))
+ {
+ memset( bitmap->array, 0, bitmap->array_size * sizeof(u64));
+ BIT_SET(bitmap->array, seqno & bitmap->mask);
+ bitmap->highest = seqno;
+ return;
+ }
+ else
+ {
+ peer_dead_count++;
+ if (peer_dead_count > 25)
+ {
+ peer_dead_count = 0;
+ memset( bitmap->array, 0, bitmap->array_size * sizeof(u64) );
+ BIT_SET(bitmap->array, seqno & bitmap->mask);
+ bitmap->highest = seqno;
+ }
+ //ppc_rx->reordered_packets++;
+ }
+ return;
+ }
+
+ if (BIT_TEST(bitmap->array, seqno & bitmap->mask))
+ {
+ seqno_rx->dup_packets++;
+ return; /* Already seen */
+ }
+ seqno_rx->reordered_packets++;
+ seqno_rx->lost_packets--;
+ BIT_SET(bitmap->array, seqno & bitmap->mask);
+ return;
+}
diff --git a/src/plugins/ioam/encap/ip6_ioam_trace.c b/src/plugins/ioam/encap/ip6_ioam_trace.c
new file mode 100644
index 00000000000..e63db6e4ec5
--- /dev/null
+++ b/src/plugins/ioam/encap/ip6_ioam_trace.c
@@ -0,0 +1,438 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <vlib/vlib.h>
+#include <vnet/vnet.h>
+#include <vnet/pg/pg.h>
+#include <vppinfra/error.h>
+
+#include <vnet/ip/ip6.h>
+#include <vnet/ip/ip6_hop_by_hop.h>
+#include <vnet/ip/ip6_hop_by_hop_packet.h>
+
+#include <vppinfra/hash.h>
+#include <vppinfra/error.h>
+#include <vppinfra/elog.h>
+
+#include <ioam/lib-trace/trace_util.h>
+
+/* Timestamp precision multipliers for seconds, milliseconds, microseconds
+ * and nanoseconds respectively.
+ */
+static f64 trace_tsp_mul[4] = { 1, 1e3, 1e6, 1e9 };
+
+typedef union
+{
+ u64 as_u64;
+ u32 as_u32[2];
+} time_u64_t;
+
+/* *INDENT-OFF* */
+typedef CLIB_PACKED(struct {
+ ip6_hop_by_hop_option_t hdr;
+ u8 ioam_trace_type;
+ u8 data_list_elts_left;
+ u32 elts[0]; /* Variable type. So keep it generic */
+}) ioam_trace_option_t;
+/* *INDENT-ON* */
+
+
+extern ip6_hop_by_hop_ioam_main_t ip6_hop_by_hop_ioam_main;
+extern ip6_main_t ip6_main;
+
+#define foreach_ip6_hop_by_hop_ioam_trace_stats \
+ _(PROCESSED, "Pkts with ip6 hop-by-hop trace options") \
+ _(PROFILE_MISS, "Pkts with ip6 hop-by-hop trace options but no profile set") \
+ _(UPDATED, "Pkts with trace updated") \
+ _(FULL, "Pkts with trace options but no space")
+
+static char *ip6_hop_by_hop_ioam_trace_stats_strings[] = {
+#define _(sym,string) string,
+ foreach_ip6_hop_by_hop_ioam_trace_stats
+#undef _
+};
+
+typedef enum
+{
+#define _(sym,str) IP6_IOAM_TRACE_##sym,
+ foreach_ip6_hop_by_hop_ioam_trace_stats
+#undef _
+ IP6_IOAM_TRACE_N_STATS,
+} ip6_ioam_trace_stats_t;
+
+
+typedef struct
+{
+ /* stats */
+ u64 counters[ARRAY_LEN (ip6_hop_by_hop_ioam_trace_stats_strings)];
+
+ /* convenience */
+ vlib_main_t *vlib_main;
+ vnet_main_t *vnet_main;
+} ip6_hop_by_hop_ioam_trace_main_t;
+
+ip6_hop_by_hop_ioam_trace_main_t ip6_hop_by_hop_ioam_trace_main;
+
+always_inline void
+ip6_ioam_trace_stats_increment_counter (u32 counter_index, u64 increment)
+{
+ ip6_hop_by_hop_ioam_trace_main_t *hm = &ip6_hop_by_hop_ioam_trace_main;
+
+ hm->counters[counter_index] += increment;
+}
+
+
+static u8 *
+format_ioam_data_list_element (u8 * s, va_list * args)
+{
+ u32 *elt = va_arg (*args, u32 *);
+ u8 *trace_type_p = va_arg (*args, u8 *);
+ u8 trace_type = *trace_type_p;
+
+
+ if (trace_type & BIT_TTL_NODEID)
+ {
+ u32 ttl_node_id_host_byte_order = clib_net_to_host_u32 (*elt);
+ s = format (s, "ttl 0x%x node id 0x%x ",
+ ttl_node_id_host_byte_order >> 24,
+ ttl_node_id_host_byte_order & 0x00FFFFFF);
+
+ elt++;
+ }
+
+ if (trace_type & BIT_ING_INTERFACE && trace_type & BIT_ING_INTERFACE)
+ {
+ u32 ingress_host_byte_order = clib_net_to_host_u32 (*elt);
+ s = format (s, "ingress 0x%x egress 0x%x ",
+ ingress_host_byte_order >> 16,
+ ingress_host_byte_order & 0xFFFF);
+ elt++;
+ }
+
+ if (trace_type & BIT_TIMESTAMP)
+ {
+ u32 ts_in_host_byte_order = clib_net_to_host_u32 (*elt);
+ s = format (s, "ts 0x%x \n", ts_in_host_byte_order);
+ elt++;
+ }
+
+ if (trace_type & BIT_APPDATA)
+ {
+ u32 appdata_in_host_byte_order = clib_net_to_host_u32 (*elt);
+ s = format (s, "app 0x%x ", appdata_in_host_byte_order);
+ elt++;
+ }
+
+ return s;
+}
+
+
+int
+ip6_ioam_trace_get_sizeof_handler (u32 * result)
+{
+ u16 size = 0;
+ u8 trace_data_size = 0;
+ trace_profile *profile = NULL;
+
+ *result = 0;
+
+ profile = trace_profile_find ();
+
+ if (PREDICT_FALSE (!profile))
+ {
+ ip6_ioam_trace_stats_increment_counter (IP6_IOAM_TRACE_PROFILE_MISS, 1);
+ return (-1);
+ }
+
+ trace_data_size = fetch_trace_data_size (profile->trace_type);
+ if (PREDICT_FALSE (trace_data_size == 0))
+ return VNET_API_ERROR_INVALID_VALUE;
+
+ if (PREDICT_FALSE (profile->num_elts * trace_data_size > 254))
+ return VNET_API_ERROR_INVALID_VALUE;
+
+ size +=
+ sizeof (ioam_trace_option_t) + (profile->num_elts * trace_data_size);
+ *result = size;
+
+ return 0;
+}
+
+
+
+int
+ip6_hop_by_hop_ioam_trace_rewrite_handler (u8 * rewrite_string,
+ u8 * rewrite_size)
+{
+ ioam_trace_option_t *trace_option = NULL;
+ u8 trace_data_size = 0;
+ u8 trace_option_elts = 0;
+ trace_profile *profile = NULL;
+
+
+ profile = trace_profile_find ();
+
+ if (PREDICT_FALSE (!profile))
+ {
+ ip6_ioam_trace_stats_increment_counter (IP6_IOAM_TRACE_PROFILE_MISS, 1);
+ return (-1);
+ }
+
+ if (PREDICT_FALSE (!rewrite_string))
+ return -1;
+
+ trace_option_elts = profile->num_elts;
+ trace_data_size = fetch_trace_data_size (profile->trace_type);
+ trace_option = (ioam_trace_option_t *) rewrite_string;
+ trace_option->hdr.type = HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST |
+ HBH_OPTION_TYPE_DATA_CHANGE_ENROUTE;
+ trace_option->hdr.length = 2 /*ioam_trace_type,data_list_elts_left */ +
+ trace_option_elts * trace_data_size;
+ trace_option->ioam_trace_type = profile->trace_type & TRACE_TYPE_MASK;
+ trace_option->data_list_elts_left = trace_option_elts;
+ *rewrite_size =
+ sizeof (ioam_trace_option_t) + (trace_option_elts * trace_data_size);
+
+ return 0;
+}
+
+
+int
+ip6_hbh_ioam_trace_data_list_handler (vlib_buffer_t * b, ip6_header_t * ip,
+ ip6_hop_by_hop_option_t * opt)
+{
+ ip6_main_t *im = &ip6_main;
+ ip_lookup_main_t *lm = &im->lookup_main;
+ ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main;
+ u8 elt_index = 0;
+ ioam_trace_option_t *trace = (ioam_trace_option_t *) opt;
+ u32 adj_index = vnet_buffer (b)->ip.adj_index[VLIB_TX];
+ ip_adjacency_t *adj = ip_get_adjacency (lm, adj_index);
+ time_u64_t time_u64;
+ u32 *elt;
+ int rv = 0;
+ trace_profile *profile = NULL;
+
+
+ profile = trace_profile_find ();
+
+ if (PREDICT_FALSE (!profile))
+ {
+ ip6_ioam_trace_stats_increment_counter (IP6_IOAM_TRACE_PROFILE_MISS, 1);
+ return (-1);
+ }
+
+
+ time_u64.as_u64 = 0;
+
+ if (PREDICT_TRUE (trace->data_list_elts_left))
+ {
+ trace->data_list_elts_left--;
+ /* fetch_trace_data_size returns in bytes. Convert it to 4-bytes
+ * to skip to this node's location.
+ */
+ elt_index =
+ trace->data_list_elts_left *
+ fetch_trace_data_size (trace->ioam_trace_type) / 4;
+ elt = &trace->elts[elt_index];
+ if (trace->ioam_trace_type & BIT_TTL_NODEID)
+ {
+ *elt =
+ clib_host_to_net_u32 ((ip->hop_limit << 24) | profile->node_id);
+ elt++;
+ }
+
+ if (trace->ioam_trace_type & BIT_ING_INTERFACE)
+ {
+ *elt =
+ (vnet_buffer (b)->sw_if_index[VLIB_RX] & 0xFFFF) << 16 |
+ (adj->rewrite_header.sw_if_index & 0xFFFF);
+ *elt = clib_host_to_net_u32 (*elt);
+ elt++;
+ }
+
+ if (trace->ioam_trace_type & BIT_TIMESTAMP)
+ {
+ /* Send least significant 32 bits */
+ f64 time_f64 =
+ (f64) (((f64) hm->unix_time_0) +
+ (vlib_time_now (hm->vlib_main) - hm->vlib_time_0));
+
+ time_u64.as_u64 = time_f64 * trace_tsp_mul[profile->trace_tsp];
+ *elt = clib_host_to_net_u32 (time_u64.as_u32[0]);
+ elt++;
+ }
+
+ if (trace->ioam_trace_type & BIT_APPDATA)
+ {
+ /* $$$ set elt0->app_data */
+ *elt = clib_host_to_net_u32 (profile->app_data);
+ elt++;
+ }
+ ip6_ioam_trace_stats_increment_counter (IP6_IOAM_TRACE_UPDATED, 1);
+ }
+ else
+ {
+ ip6_ioam_trace_stats_increment_counter (IP6_IOAM_TRACE_FULL, 1);
+ }
+ return (rv);
+}
+
+u8 *
+ip6_hbh_ioam_trace_data_list_trace_handler (u8 * s,
+ ip6_hop_by_hop_option_t * opt)
+{
+ ioam_trace_option_t *trace;
+ u8 trace_data_size_in_words = 0;
+ u32 *elt;
+ int elt_index = 0;
+
+ trace = (ioam_trace_option_t *) opt;
+ s =
+ format (s, " Trace Type 0x%x , %d elts left\n", trace->ioam_trace_type,
+ trace->data_list_elts_left);
+ trace_data_size_in_words =
+ fetch_trace_data_size (trace->ioam_trace_type) / 4;
+ elt = &trace->elts[0];
+ while ((u8 *) elt < ((u8 *) (&trace->elts[0]) + trace->hdr.length - 2
+ /* -2 accounts for ioam_trace_type,elts_left */ ))
+ {
+ s = format (s, " [%d] %U\n", elt_index,
+ format_ioam_data_list_element,
+ elt, &trace->ioam_trace_type);
+ elt_index++;
+ elt += trace_data_size_in_words;
+ }
+ return (s);
+}
+
+
+static clib_error_t *
+ip6_show_ioam_trace_cmd_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ ip6_hop_by_hop_ioam_trace_main_t *hm = &ip6_hop_by_hop_ioam_trace_main;
+ u8 *s = 0;
+ int i = 0;
+
+ for (i = 0; i < IP6_IOAM_TRACE_N_STATS; i++)
+ {
+ s =
+ format (s, " %s - %lu\n", ip6_hop_by_hop_ioam_trace_stats_strings[i],
+ hm->counters[i]);
+ }
+
+ vlib_cli_output (vm, "%v", s);
+ vec_free (s);
+ return 0;
+}
+
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (ip6_show_ioam_trace_cmd, static) = {
+ .path = "show ioam trace",
+ .short_help = "iOAM trace statistics",
+ .function = ip6_show_ioam_trace_cmd_fn,
+};
+/* *INDENT-ON* */
+
+
+static clib_error_t *
+ip6_hop_by_hop_ioam_trace_init (vlib_main_t * vm)
+{
+ ip6_hop_by_hop_ioam_trace_main_t *hm = &ip6_hop_by_hop_ioam_trace_main;
+ clib_error_t *error;
+
+ if ((error = vlib_call_init_function (vm, ip_main_init)))
+ return (error);
+
+ if ((error = vlib_call_init_function (vm, ip6_lookup_init)))
+ return error;
+
+ if ((error = vlib_call_init_function (vm, ip6_hop_by_hop_ioam_init)))
+ return (error);
+
+ hm->vlib_main = vm;
+ hm->vnet_main = vnet_get_main ();
+ memset (hm->counters, 0, sizeof (hm->counters));
+
+
+ if (ip6_hbh_register_option
+ (HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST,
+ ip6_hbh_ioam_trace_data_list_handler,
+ ip6_hbh_ioam_trace_data_list_trace_handler) < 0)
+ return (clib_error_create
+ ("registration of HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST failed"));
+
+
+ if (ip6_hbh_add_register_option (HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST,
+ sizeof (ioam_trace_option_t),
+ ip6_hop_by_hop_ioam_trace_rewrite_handler)
+ < 0)
+ return (clib_error_create
+ ("registration of HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST for rewrite failed"));
+
+
+ return (0);
+}
+
+int
+ip6_trace_profile_cleanup (void)
+{
+ ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main;
+
+ hm->options_size[HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST] = 0;
+
+ return 0;
+
+}
+
+
+int
+ip6_trace_profile_setup (void)
+{
+ u32 trace_size = 0;
+ ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main;
+
+ trace_profile *profile = NULL;
+
+
+ profile = trace_profile_find ();
+
+ if (PREDICT_FALSE (!profile))
+ {
+ ip6_ioam_trace_stats_increment_counter (IP6_IOAM_TRACE_PROFILE_MISS, 1);
+ return (-1);
+ }
+
+
+ if (ip6_ioam_trace_get_sizeof_handler (&trace_size) < 0)
+ return (-1);
+
+ hm->options_size[HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST] = trace_size;
+
+ return (0);
+}
+
+
+VLIB_INIT_FUNCTION (ip6_hop_by_hop_ioam_trace_init);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/plugins/ioam/export-common/ioam_export.h b/src/plugins/ioam/export-common/ioam_export.h
new file mode 100644
index 00000000000..fbd86180656
--- /dev/null
+++ b/src/plugins/ioam/export-common/ioam_export.h
@@ -0,0 +1,616 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef __included_ioam_export_h__
+#define __included_ioam_export_h__
+
+#include <vnet/vnet.h>
+#include <vnet/ip/ip.h>
+#include <vnet/ip/ip_packet.h>
+#include <vnet/ip/ip4_packet.h>
+#include <vnet/ip/ip6_packet.h>
+#include <vnet/ip/udp.h>
+#include <vnet/flow/ipfix_packet.h>
+
+#include <vppinfra/pool.h>
+#include <vppinfra/hash.h>
+#include <vppinfra/error.h>
+#include <vppinfra/elog.h>
+
+#include <vlib/threads.h>
+
+typedef struct ioam_export_buffer
+{
+ /* Allocated buffer */
+ u32 buffer_index;
+ u64 touched_at;
+ u8 records_in_this_buffer;
+} ioam_export_buffer_t;
+
+
+typedef struct
+{
+ /* API message ID base */
+ u16 msg_id_base;
+
+ /* TODO: to support multiple collectors all this has to be grouped and create a vector here */
+ u8 *record_header;
+ u32 sequence_number;
+ u32 domain_id;
+
+ /* ipfix collector, our ip address */
+ ip4_address_t ipfix_collector;
+ ip4_address_t src_address;
+
+ /* Pool of ioam_export_buffer_t */
+ ioam_export_buffer_t *buffer_pool;
+ /* Vector of per thread ioam_export_buffer_t to buffer pool index */
+ u32 *buffer_per_thread;
+ /* Lock per thread to swap buffers between worker and timer process */
+ volatile u32 **lockp;
+
+ /* time scale transform */
+ u32 unix_time_0;
+ f64 vlib_time_0;
+
+ /* convenience */
+ vlib_main_t *vlib_main;
+ vnet_main_t *vnet_main;
+ u32 ip4_lookup_node_index;
+
+ uword my_hbh_slot;
+ u32 export_process_node_index;
+} ioam_export_main_t;
+
+ioam_export_main_t ioam_export_main;
+ioam_export_main_t vxlan_gpe_ioam_export_main;
+
+extern vlib_node_registration_t export_node;
+
+#define DEFAULT_EXPORT_SIZE (3 * CLIB_CACHE_LINE_BYTES)
+/*
+ * Number of records in a buffer
+ * ~(MTU (1500) - [ip hdr(40) + UDP(8) + ipfix (24)]) / DEFAULT_EXPORT_SIZE
+ */
+#define DEFAULT_EXPORT_RECORDS 7
+
+always_inline ioam_export_buffer_t *
+ioam_export_get_my_buffer (ioam_export_main_t * em, u32 thread_id)
+{
+
+ if (vec_len (em->buffer_per_thread) > thread_id)
+ return (pool_elt_at_index
+ (em->buffer_pool, em->buffer_per_thread[thread_id]));
+ return (0);
+}
+
+inline static int
+ioam_export_buffer_add_header (ioam_export_main_t * em, vlib_buffer_t * b0)
+{
+ clib_memcpy (b0->data, em->record_header, vec_len (em->record_header));
+ b0->current_data = 0;
+ b0->current_length = vec_len (em->record_header);
+ b0->flags |= VLIB_BUFFER_TOTAL_LENGTH_VALID;
+ return (1);
+}
+
+inline static int
+ioam_export_init_buffer (ioam_export_main_t * em, vlib_main_t * vm,
+ ioam_export_buffer_t * eb)
+{
+ vlib_buffer_t *b = 0;
+
+ if (!eb)
+ return (-1);
+ /* TODO: Perhaps buffer init from template here */
+ if (vlib_buffer_alloc (vm, &(eb->buffer_index), 1) != 1)
+ return (-2);
+ eb->records_in_this_buffer = 0;
+ eb->touched_at = vlib_time_now (vm);
+ b = vlib_get_buffer (vm, eb->buffer_index);
+ (void) ioam_export_buffer_add_header (em, b);
+ vnet_buffer (b)->sw_if_index[VLIB_RX] = 0;
+ vnet_buffer (b)->sw_if_index[VLIB_TX] = ~0;
+ return (1);
+}
+
+inline static void
+ioam_export_thread_buffer_free (ioam_export_main_t * em)
+{
+ vlib_main_t *vm = em->vlib_main;
+ ioam_export_buffer_t *eb = 0;
+ int i;
+ for (i = 0; i < vec_len (em->buffer_per_thread); i++)
+ {
+ eb = pool_elt_at_index (em->buffer_pool, em->buffer_per_thread[i]);
+ if (eb)
+ vlib_buffer_free (vm, &(eb->buffer_index), 1);
+ }
+ for (i = 0; i < vec_len (em->lockp); i++)
+ clib_mem_free ((void *) em->lockp[i]);
+ vec_free (em->buffer_per_thread);
+ pool_free (em->buffer_pool);
+ vec_free (em->lockp);
+ em->buffer_per_thread = 0;
+ em->buffer_pool = 0;
+ em->lockp = 0;
+}
+
+inline static int
+ioam_export_thread_buffer_init (ioam_export_main_t * em, vlib_main_t * vm)
+{
+ int no_of_threads = vec_len (vlib_worker_threads);
+ int i;
+ ioam_export_buffer_t *eb = 0;
+ vlib_node_t *ip4_lookup_node;
+
+ pool_alloc_aligned (em->buffer_pool,
+ no_of_threads - 1, CLIB_CACHE_LINE_BYTES);
+ vec_validate_aligned (em->buffer_per_thread,
+ no_of_threads - 1, CLIB_CACHE_LINE_BYTES);
+ vec_validate_aligned (em->lockp, no_of_threads - 1, CLIB_CACHE_LINE_BYTES);
+ ip4_lookup_node = vlib_get_node_by_name (vm, (u8 *) "ip4-lookup");
+ em->ip4_lookup_node_index = ip4_lookup_node->index;
+ if (!em->buffer_per_thread || !em->buffer_pool || !em->lockp)
+ {
+ return (-1);
+ }
+ for (i = 0; i < no_of_threads; i++)
+ {
+ eb = 0;
+ pool_get_aligned (em->buffer_pool, eb, CLIB_CACHE_LINE_BYTES);
+ memset (eb, 0, sizeof (*eb));
+ em->buffer_per_thread[i] = eb - em->buffer_pool;
+ if (ioam_export_init_buffer (em, vm, eb) != 1)
+ {
+ ioam_export_thread_buffer_free (em);
+ return (-2);
+ }
+ em->lockp[i] = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES,
+ CLIB_CACHE_LINE_BYTES);
+ memset ((void *) em->lockp[i], 0, CLIB_CACHE_LINE_BYTES);
+ }
+ return (1);
+}
+
+#define IPFIX_IOAM_EXPORT_ID 272
+
+/* Used to build the rewrite */
+/* data set packet */
+typedef struct
+{
+ ipfix_message_header_t h;
+ ipfix_set_header_t s;
+} ipfix_data_packet_t;
+
+typedef struct
+{
+ ip4_header_t ip4;
+ udp_header_t udp;
+ ipfix_data_packet_t ipfix;
+} ip4_ipfix_data_packet_t;
+
+
+inline static void
+ioam_export_header_cleanup (ioam_export_main_t * em,
+ ip4_address_t * collector_address,
+ ip4_address_t * src_address)
+{
+ vec_free (em->record_header);
+ em->record_header = 0;
+}
+
+inline static int
+ioam_export_header_create (ioam_export_main_t * em,
+ ip4_address_t * collector_address,
+ ip4_address_t * src_address)
+{
+ ip4_header_t *ip;
+ udp_header_t *udp;
+ ipfix_message_header_t *h;
+ ipfix_set_header_t *s;
+ u8 *rewrite = 0;
+ ip4_ipfix_data_packet_t *tp;
+
+
+ /* allocate rewrite space */
+ vec_validate_aligned (rewrite,
+ sizeof (ip4_ipfix_data_packet_t) - 1,
+ CLIB_CACHE_LINE_BYTES);
+
+ tp = (ip4_ipfix_data_packet_t *) rewrite;
+ ip = (ip4_header_t *) & tp->ip4;
+ udp = (udp_header_t *) (ip + 1);
+ h = (ipfix_message_header_t *) (udp + 1);
+ s = (ipfix_set_header_t *) (h + 1);
+
+ ip->ip_version_and_header_length = 0x45;
+ ip->ttl = 254;
+ ip->protocol = IP_PROTOCOL_UDP;
+ ip->src_address.as_u32 = src_address->as_u32;
+ ip->dst_address.as_u32 = collector_address->as_u32;
+ udp->src_port = clib_host_to_net_u16 (4939 /* $$FIXME */ );
+ udp->dst_port = clib_host_to_net_u16 (4939);
+ /* FIXUP: UDP length */
+ udp->length = clib_host_to_net_u16 (vec_len (rewrite) +
+ (DEFAULT_EXPORT_RECORDS *
+ DEFAULT_EXPORT_SIZE) - sizeof (*ip));
+
+ /* FIXUP: message header export_time */
+ /* FIXUP: message header sequence_number */
+ h->domain_id = clib_host_to_net_u32 (em->domain_id);
+
+ /*FIXUP: Setid length in octets if records exported are not default */
+ s->set_id_length = ipfix_set_id_length (IPFIX_IOAM_EXPORT_ID,
+ (sizeof (*s) +
+ (DEFAULT_EXPORT_RECORDS *
+ DEFAULT_EXPORT_SIZE)));
+
+ /* FIXUP: h version and length length in octets if records exported are not default */
+ h->version_length = version_length (sizeof (*h) +
+ (sizeof (*s) +
+ (DEFAULT_EXPORT_RECORDS *
+ DEFAULT_EXPORT_SIZE)));
+
+ /* FIXUP: ip length if records exported are not default */
+ /* FIXUP: ip checksum if records exported are not default */
+ ip->length = clib_host_to_net_u16 (vec_len (rewrite) +
+ (DEFAULT_EXPORT_RECORDS *
+ DEFAULT_EXPORT_SIZE));
+ ip->checksum = ip4_header_checksum (ip);
+ _vec_len (rewrite) = sizeof (ip4_ipfix_data_packet_t);
+ em->record_header = rewrite;
+ return (1);
+}
+
+inline static int
+ioam_export_send_buffer (ioam_export_main_t * em, vlib_main_t * vm,
+ ioam_export_buffer_t * eb)
+{
+ ip4_header_t *ip;
+ udp_header_t *udp;
+ ipfix_message_header_t *h;
+ ipfix_set_header_t *s;
+ ip4_ipfix_data_packet_t *tp;
+ vlib_buffer_t *b0;
+ u16 new_l0, old_l0;
+ ip_csum_t sum0;
+ vlib_frame_t *nf = 0;
+ u32 *to_next;
+
+ b0 = vlib_get_buffer (vm, eb->buffer_index);
+ tp = vlib_buffer_get_current (b0);
+ ip = (ip4_header_t *) & tp->ip4;
+ udp = (udp_header_t *) (ip + 1);
+ h = (ipfix_message_header_t *) (udp + 1);
+ s = (ipfix_set_header_t *) (h + 1);
+
+ /* FIXUP: message header export_time */
+ h->export_time = clib_host_to_net_u32 ((u32)
+ (((f64) em->unix_time_0) +
+ (vlib_time_now (em->vlib_main) -
+ em->vlib_time_0)));
+
+ /* FIXUP: message header sequence_number */
+ h->sequence_number = clib_host_to_net_u32 (em->sequence_number++);
+
+ /* FIXUP: lengths if different from default */
+ if (PREDICT_FALSE (eb->records_in_this_buffer != DEFAULT_EXPORT_RECORDS))
+ {
+ s->set_id_length =
+ ipfix_set_id_length (IPFIX_IOAM_EXPORT_ID /* set_id */ ,
+ b0->current_length - (sizeof (*ip) +
+ sizeof (*udp) +
+ sizeof (*h)));
+ h->version_length =
+ version_length (b0->current_length - (sizeof (*ip) + sizeof (*udp)));
+ sum0 = ip->checksum;
+ old_l0 = ip->length;
+ new_l0 = clib_host_to_net_u16 ((u16) b0->current_length);
+ sum0 = ip_csum_update (sum0, old_l0, new_l0, ip4_header_t,
+ length /* changed member */ );
+ ip->checksum = ip_csum_fold (sum0);
+ ip->length = new_l0;
+ udp->length = clib_host_to_net_u16 (b0->current_length - sizeof (*ip));
+ }
+
+ /* Enqueue pkts to ip4-lookup */
+
+ nf = vlib_get_frame_to_node (vm, em->ip4_lookup_node_index);
+ nf->n_vectors = 0;
+ to_next = vlib_frame_vector_args (nf);
+ nf->n_vectors = 1;
+ to_next[0] = eb->buffer_index;
+ vlib_put_frame_to_node (vm, em->ip4_lookup_node_index, nf);
+ return (1);
+
+}
+
+#define EXPORT_TIMEOUT (20.0)
+#define THREAD_PERIOD (30.0)
+inline static uword
+ioam_export_process_common (ioam_export_main_t * em, vlib_main_t * vm,
+ vlib_node_runtime_t * rt, vlib_frame_t * f,
+ u32 index)
+{
+ f64 now;
+ f64 timeout = 30.0;
+ uword event_type;
+ uword *event_data = 0;
+ int i;
+ ioam_export_buffer_t *eb = 0, *new_eb = 0;
+ u32 *vec_buffer_indices = 0;
+ u32 *vec_buffer_to_be_sent = 0;
+ u32 *thread_index = 0;
+ u32 new_pool_index = 0;
+
+ em->export_process_node_index = index;
+ /* Wait for Godot... */
+ vlib_process_wait_for_event_or_clock (vm, 1e9);
+ event_type = vlib_process_get_events (vm, &event_data);
+ if (event_type != 1)
+ clib_warning ("bogus kickoff event received, %d", event_type);
+ vec_reset_length (event_data);
+
+ while (1)
+ {
+ vlib_process_wait_for_event_or_clock (vm, timeout);
+ event_type = vlib_process_get_events (vm, &event_data);
+ switch (event_type)
+ {
+ case 2: /* Stop and Wait for kickoff again */
+ timeout = 1e9;
+ break;
+ case 1: /* kickoff : Check for unsent buffers */
+ timeout = THREAD_PERIOD;
+ break;
+ case ~0: /* timeout */
+ break;
+ }
+ vec_reset_length (event_data);
+ now = vlib_time_now (vm);
+ /*
+ * Create buffers for threads that are not active enough
+ * to send out the export records
+ */
+ for (i = 0; i < vec_len (em->buffer_per_thread); i++)
+ {
+ /* If the worker thread is processing export records ignore further checks */
+ if (*em->lockp[i] == 1)
+ continue;
+ eb = pool_elt_at_index (em->buffer_pool, em->buffer_per_thread[i]);
+ if (eb->records_in_this_buffer > 0
+ && now > (eb->touched_at + EXPORT_TIMEOUT))
+ {
+ pool_get_aligned (em->buffer_pool, new_eb,
+ CLIB_CACHE_LINE_BYTES);
+ memset (new_eb, 0, sizeof (*new_eb));
+ if (ioam_export_init_buffer (em, vm, new_eb) == 1)
+ {
+ new_pool_index = new_eb - em->buffer_pool;
+ vec_add (vec_buffer_indices, &new_pool_index, 1);
+ vec_add (vec_buffer_to_be_sent, &em->buffer_per_thread[i],
+ 1);
+ vec_add (thread_index, &i, 1);
+ }
+ else
+ {
+ pool_put (em->buffer_pool, new_eb);
+ /*Give up */
+ goto CLEANUP;
+ }
+ }
+ }
+ if (vec_len (thread_index) != 0)
+ {
+ /*
+ * Now swap the buffers out
+ */
+ for (i = 0; i < vec_len (thread_index); i++)
+ {
+ while (__sync_lock_test_and_set (em->lockp[thread_index[i]], 1))
+ ;
+ em->buffer_per_thread[thread_index[i]] =
+ vec_pop (vec_buffer_indices);
+ *em->lockp[thread_index[i]] = 0;
+ }
+
+ /* Send the buffers */
+ for (i = 0; i < vec_len (vec_buffer_to_be_sent); i++)
+ {
+ eb =
+ pool_elt_at_index (em->buffer_pool, vec_buffer_to_be_sent[i]);
+ ioam_export_send_buffer (em, vm, eb);
+ pool_put (em->buffer_pool, eb);
+ }
+ }
+
+ CLEANUP:
+ /* Free any leftover/unused buffers and everything that was allocated */
+ for (i = 0; i < vec_len (vec_buffer_indices); i++)
+ {
+ new_eb = pool_elt_at_index (em->buffer_pool, vec_buffer_indices[i]);
+ vlib_buffer_free (vm, &new_eb->buffer_index, 1);
+ pool_put (em->buffer_pool, new_eb);
+ }
+ vec_free (vec_buffer_indices);
+ vec_free (vec_buffer_to_be_sent);
+ vec_free (thread_index);
+ }
+ return 0; /* not so much */
+}
+
+#define ioam_export_node_common(EM, VM, N, F, HTYPE, L, V, NEXT) \
+do { \
+ u32 n_left_from, *from, *to_next; \
+ export_next_t next_index; \
+ u32 pkts_recorded = 0; \
+ ioam_export_buffer_t *my_buf = 0; \
+ vlib_buffer_t *eb0 = 0; \
+ u32 ebi0 = 0; \
+ from = vlib_frame_vector_args (F); \
+ n_left_from = (F)->n_vectors; \
+ next_index = (N)->cached_next_index; \
+ while (__sync_lock_test_and_set ((EM)->lockp[(VM)->cpu_index], 1)); \
+ my_buf = ioam_export_get_my_buffer (EM, (VM)->cpu_index); \
+ my_buf->touched_at = vlib_time_now (VM); \
+ while (n_left_from > 0) \
+ { \
+ u32 n_left_to_next; \
+ vlib_get_next_frame (VM, N, next_index, to_next, n_left_to_next); \
+ while (n_left_from >= 4 && n_left_to_next >= 2) \
+ { \
+ u32 next0 = NEXT; \
+ u32 next1 = NEXT; \
+ u32 bi0, bi1; \
+ HTYPE *ip0, *ip1; \
+ vlib_buffer_t *p0, *p1; \
+ u32 ip_len0, ip_len1; \
+ { \
+ vlib_buffer_t *p2, *p3; \
+ p2 = vlib_get_buffer (VM, from[2]); \
+ p3 = vlib_get_buffer (VM, from[3]); \
+ vlib_prefetch_buffer_header (p2, LOAD); \
+ vlib_prefetch_buffer_header (p3, LOAD); \
+ CLIB_PREFETCH (p2->data, 3 * CLIB_CACHE_LINE_BYTES, LOAD); \
+ CLIB_PREFETCH (p3->data, 3 * CLIB_CACHE_LINE_BYTES, LOAD); \
+ } \
+ to_next[0] = bi0 = from[0]; \
+ to_next[1] = bi1 = from[1]; \
+ from += 2; \
+ to_next += 2; \
+ n_left_from -= 2; \
+ n_left_to_next -= 2; \
+ p0 = vlib_get_buffer (VM, bi0); \
+ p1 = vlib_get_buffer (VM, bi1); \
+ ip0 = vlib_buffer_get_current (p0); \
+ ip1 = vlib_buffer_get_current (p1); \
+ ip_len0 = \
+ clib_net_to_host_u16 (ip0->L) + sizeof (HTYPE); \
+ ip_len1 = \
+ clib_net_to_host_u16 (ip1->L) + sizeof (HTYPE); \
+ ebi0 = my_buf->buffer_index; \
+ eb0 = vlib_get_buffer (VM, ebi0); \
+ if (PREDICT_FALSE (eb0 == 0)) \
+ goto NO_BUFFER1; \
+ ip_len0 = \
+ ip_len0 > DEFAULT_EXPORT_SIZE ? DEFAULT_EXPORT_SIZE : ip_len0; \
+ ip_len1 = \
+ ip_len1 > DEFAULT_EXPORT_SIZE ? DEFAULT_EXPORT_SIZE : ip_len1; \
+ copy3cachelines (eb0->data + eb0->current_length, ip0, ip_len0); \
+ eb0->current_length += DEFAULT_EXPORT_SIZE; \
+ my_buf->records_in_this_buffer++; \
+ if (my_buf->records_in_this_buffer >= DEFAULT_EXPORT_RECORDS) \
+ { \
+ ioam_export_send_buffer (EM, VM, my_buf); \
+ ioam_export_init_buffer (EM, VM, my_buf); \
+ } \
+ ebi0 = my_buf->buffer_index; \
+ eb0 = vlib_get_buffer (VM, ebi0); \
+ if (PREDICT_FALSE (eb0 == 0)) \
+ goto NO_BUFFER1; \
+ copy3cachelines (eb0->data + eb0->current_length, ip1, ip_len1); \
+ eb0->current_length += DEFAULT_EXPORT_SIZE; \
+ my_buf->records_in_this_buffer++; \
+ if (my_buf->records_in_this_buffer >= DEFAULT_EXPORT_RECORDS) \
+ { \
+ ioam_export_send_buffer (EM, VM, my_buf); \
+ ioam_export_init_buffer (EM, VM, my_buf); \
+ } \
+ pkts_recorded += 2; \
+ if (PREDICT_FALSE (((node)->flags & VLIB_NODE_FLAG_TRACE))) \
+ { \
+ if (p0->flags & VLIB_BUFFER_IS_TRACED) \
+ { \
+ export_trace_t *t = \
+ vlib_add_trace (VM, node, p0, sizeof (*t)); \
+ t->flow_label = \
+ clib_net_to_host_u32 (ip0->V); \
+ t->next_index = next0; \
+ } \
+ if (p1->flags & VLIB_BUFFER_IS_TRACED) \
+ { \
+ export_trace_t *t = \
+ vlib_add_trace (VM, N, p1, sizeof (*t)); \
+ t->flow_label = \
+ clib_net_to_host_u32 (ip1->V); \
+ t->next_index = next1; \
+ } \
+ } \
+ NO_BUFFER1: \
+ vlib_validate_buffer_enqueue_x2 (VM, N, next_index, \
+ to_next, n_left_to_next, \
+ bi0, bi1, next0, next1); \
+ } \
+ while (n_left_from > 0 && n_left_to_next > 0) \
+ { \
+ u32 bi0; \
+ vlib_buffer_t *p0; \
+ u32 next0 = NEXT; \
+ HTYPE *ip0; \
+ u32 ip_len0; \
+ bi0 = from[0]; \
+ to_next[0] = bi0; \
+ from += 1; \
+ to_next += 1; \
+ n_left_from -= 1; \
+ n_left_to_next -= 1; \
+ p0 = vlib_get_buffer (VM, bi0); \
+ ip0 = vlib_buffer_get_current (p0); \
+ ip_len0 = \
+ clib_net_to_host_u16 (ip0->L) + sizeof (HTYPE); \
+ ebi0 = my_buf->buffer_index; \
+ eb0 = vlib_get_buffer (VM, ebi0); \
+ if (PREDICT_FALSE (eb0 == 0)) \
+ goto NO_BUFFER; \
+ ip_len0 = \
+ ip_len0 > DEFAULT_EXPORT_SIZE ? DEFAULT_EXPORT_SIZE : ip_len0; \
+ copy3cachelines (eb0->data + eb0->current_length, ip0, ip_len0); \
+ eb0->current_length += DEFAULT_EXPORT_SIZE; \
+ my_buf->records_in_this_buffer++; \
+ if (my_buf->records_in_this_buffer >= DEFAULT_EXPORT_RECORDS) \
+ { \
+ ioam_export_send_buffer (EM, VM, my_buf); \
+ ioam_export_init_buffer (EM, VM, my_buf); \
+ } \
+ if (PREDICT_FALSE (((N)->flags & VLIB_NODE_FLAG_TRACE) \
+ && (p0->flags & VLIB_BUFFER_IS_TRACED))) \
+ { \
+ export_trace_t *t = vlib_add_trace (VM, (N), p0, sizeof (*t)); \
+ t->flow_label = \
+ clib_net_to_host_u32 (ip0->V); \
+ t->next_index = next0; \
+ } \
+ pkts_recorded += 1; \
+ NO_BUFFER: \
+ vlib_validate_buffer_enqueue_x1 (VM, N, next_index, \
+ to_next, n_left_to_next, \
+ bi0, next0); \
+ } \
+ vlib_put_next_frame (VM, N, next_index, n_left_to_next); \
+ } \
+ vlib_node_increment_counter (VM, export_node.index, \
+ EXPORT_ERROR_RECORDED, pkts_recorded); \
+ *(EM)->lockp[(VM)->cpu_index] = 0; \
+} while(0)
+
+#endif /* __included_ioam_export_h__ */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/plugins/ioam/export-vxlan-gpe/vxlan_gpe_ioam_export.api b/src/plugins/ioam/export-vxlan-gpe/vxlan_gpe_ioam_export.api
new file mode 100644
index 00000000000..7b17c3f7a32
--- /dev/null
+++ b/src/plugins/ioam/export-vxlan-gpe/vxlan_gpe_ioam_export.api
@@ -0,0 +1,42 @@
+/* Hey Emacs use -*- mode: C -*- */
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/* Define a simple binary API to control the feature */
+
+define vxlan_gpe_ioam_export_enable_disable {
+ /* Client identifier, set from api_main.my_client_index */
+ u32 client_index;
+
+ /* Arbitrary context, so client can match reply to request */
+ u32 context;
+
+ /* Enable / disable the feature */
+ u8 is_disable;
+
+ /* Collector ip address */
+ u8 collector_address[4];
+ u8 src_address[4];
+
+ /* Src ip address */
+};
+
+define vxlan_gpe_ioam_export_enable_disable_reply {
+ /* From the request */
+ u32 context;
+
+ /* Return value, zero means all OK */
+ i32 retval;
+}; \ No newline at end of file
diff --git a/src/plugins/ioam/export-vxlan-gpe/vxlan_gpe_ioam_export.c b/src/plugins/ioam/export-vxlan-gpe/vxlan_gpe_ioam_export.c
new file mode 100644
index 00000000000..bab8d977062
--- /dev/null
+++ b/src/plugins/ioam/export-vxlan-gpe/vxlan_gpe_ioam_export.c
@@ -0,0 +1,271 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
+ *------------------------------------------------------------------
+ * vxlan_gpe_ioam_export.c - ioam export API / debug CLI handling
+ *------------------------------------------------------------------
+ */
+
+#include <vnet/vnet.h>
+#include <vnet/plugin/plugin.h>
+#include <ioam/export-common/ioam_export.h>
+#include <vnet/vxlan-gpe/vxlan_gpe.h>
+
+#include <vlibapi/api.h>
+#include <vlibmemory/api.h>
+#include <vlibsocket/api.h>
+
+#include <ioam/lib-vxlan-gpe/vxlan_gpe_ioam.h>
+
+/* define message IDs */
+#include <ioam/export-vxlan-gpe/vxlan_gpe_ioam_export_msg_enum.h>
+
+/* define message structures */
+#define vl_typedefs
+#include <ioam/export-vxlan-gpe/vxlan_gpe_ioam_export_all_api_h.h>
+#undef vl_typedefs
+
+/* define generated endian-swappers */
+#define vl_endianfun
+#include <ioam/export-vxlan-gpe/vxlan_gpe_ioam_export_all_api_h.h>
+#undef vl_endianfun
+
+/* instantiate all the print functions we know about */
+#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
+#define vl_printfun
+#include <ioam/export-vxlan-gpe/vxlan_gpe_ioam_export_all_api_h.h>
+#undef vl_printfun
+
+/* Get the API version number */
+#define vl_api_version(n,v) static u32 api_version=(v);
+#include <ioam/export-vxlan-gpe/vxlan_gpe_ioam_export_all_api_h.h>
+#undef vl_api_version
+
+/*
+ * A handy macro to set up a message reply.
+ * Assumes that the following variables are available:
+ * mp - pointer to request message
+ * rmp - pointer to reply message type
+ * rv - return value
+ */
+
+#define REPLY_MACRO(t) \
+do { \
+ unix_shared_memory_queue_t * q = \
+ vl_api_client_index_to_input_queue (mp->client_index); \
+ if (!q) \
+ return; \
+ \
+ rmp = vl_msg_api_alloc (sizeof (*rmp)); \
+ rmp->_vl_msg_id = ntohs((t)+sm->msg_id_base); \
+ rmp->context = mp->context; \
+ rmp->retval = ntohl(rv); \
+ \
+ vl_msg_api_send_shmem (q, (u8 *)&rmp); \
+} while(0);
+
+
+/* List of message types that this plugin understands */
+
+
+#define foreach_vxlan_gpe_ioam_export_plugin_api_msg \
+_(VXLAN_GPE_IOAM_EXPORT_ENABLE_DISABLE, vxlan_gpe_ioam_export_enable_disable)
+
+extern void vxlan_gpe_set_next_override (uword next);
+/* Action function shared between message handler and debug CLI */
+int
+vxlan_gpe_ioam_export_enable_disable (ioam_export_main_t * em,
+ u8 is_disable,
+ ip4_address_t * collector_address,
+ ip4_address_t * src_address)
+{
+ vlib_main_t *vm = em->vlib_main;
+ u32 node_index = export_node.index;
+ vlib_node_t *vxlan_gpe_decap_ioam_node = NULL;
+
+ if (is_disable == 0)
+ {
+ if (em->my_hbh_slot == ~0)
+ {
+ /* Hook this export node to vxlan-gpe-decap-ioam-v4 */
+ vxlan_gpe_decap_ioam_node =
+ vlib_get_node_by_name (vm, (u8 *) "vxlan-gpe-decap-ioam-v4");
+ if (!vxlan_gpe_decap_ioam_node)
+ {
+ /* node does not exist give up */
+ return (-1);
+ }
+ em->my_hbh_slot =
+ vlib_node_add_next (vm, vxlan_gpe_decap_ioam_node->index,
+ node_index);
+ }
+ if (1 == ioam_export_header_create (em, collector_address, src_address))
+ {
+ ioam_export_thread_buffer_init (em, vm);
+ vxlan_gpe_set_next_override (em->my_hbh_slot);
+ /* Turn on the export buffer check process */
+ vlib_process_signal_event (vm, em->export_process_node_index, 1, 0);
+
+ }
+ else
+ {
+ return (-2);
+ }
+ }
+ else
+ {
+ vxlan_gpe_set_next_override (VXLAN_GPE_DECAP_IOAM_V4_NEXT_POP);
+ ioam_export_header_cleanup (em, collector_address, src_address);
+ ioam_export_thread_buffer_free (em);
+ /* Turn off the export buffer check process */
+ vlib_process_signal_event (vm, em->export_process_node_index, 2, 0);
+
+ }
+
+ return 0;
+}
+
+/* API message handler */
+static void vl_api_vxlan_gpe_ioam_export_enable_disable_t_handler
+ (vl_api_vxlan_gpe_ioam_export_enable_disable_t * mp)
+{
+ vl_api_vxlan_gpe_ioam_export_enable_disable_reply_t *rmp;
+ ioam_export_main_t *sm = &vxlan_gpe_ioam_export_main;
+ int rv;
+
+ rv = vxlan_gpe_ioam_export_enable_disable (sm, (int) (mp->is_disable),
+ (ip4_address_t *)
+ mp->collector_address,
+ (ip4_address_t *)
+ mp->src_address);
+
+ REPLY_MACRO (VL_API_VXLAN_GPE_IOAM_EXPORT_ENABLE_DISABLE_REPLY);
+} /* API message handler */
+
+
+
+/* Set up the API message handling tables */
+static clib_error_t *
+vxlan_gpe_ioam_export_plugin_api_hookup (vlib_main_t * vm)
+{
+ ioam_export_main_t *sm = &vxlan_gpe_ioam_export_main;
+#define _(N,n) \
+ vl_msg_api_set_handlers((VL_API_##N + sm->msg_id_base), \
+ #n, \
+ vl_api_##n##_t_handler, \
+ vl_noop_handler, \
+ vl_api_##n##_t_endian, \
+ vl_api_##n##_t_print, \
+ sizeof(vl_api_##n##_t), 1);
+ foreach_vxlan_gpe_ioam_export_plugin_api_msg;
+#undef _
+
+ return 0;
+}
+
+
+static clib_error_t *
+set_vxlan_gpe_ioam_export_ipfix_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ ioam_export_main_t *em = &vxlan_gpe_ioam_export_main;
+ ip4_address_t collector, src;
+ u8 is_disable = 0;
+
+ collector.as_u32 = 0;
+ src.as_u32 = 0;
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "collector %U", unformat_ip4_address, &collector))
+ ;
+ else if (unformat (input, "src %U", unformat_ip4_address, &src))
+ ;
+ else if (unformat (input, "disable"))
+ is_disable = 1;
+ else
+ break;
+ }
+
+ if (collector.as_u32 == 0)
+ return clib_error_return (0, "collector address required");
+
+ if (src.as_u32 == 0)
+ return clib_error_return (0, "src address required");
+
+ em->ipfix_collector.as_u32 = collector.as_u32;
+ em->src_address.as_u32 = src.as_u32;
+
+ vlib_cli_output (vm, "Collector %U, src address %U",
+ format_ip4_address, &em->ipfix_collector,
+ format_ip4_address, &em->src_address);
+
+ /* Turn on the export timer process */
+ // vlib_process_signal_event (vm, flow_report_process_node.index,
+ //1, 0);
+ if (0 !=
+ vxlan_gpe_ioam_export_enable_disable (em, is_disable, &collector, &src))
+ {
+ return clib_error_return (0, "Unable to set ioam vxlan-gpe export");
+ }
+
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (set_vxlan_gpe_ioam_ipfix_command, static) =
+{
+.path = "set vxlan-gpe-ioam export ipfix",
+.short_help = "set vxlan-gpe-ioam export ipfix collector <ip4-address> src <ip4-address>",
+.function = set_vxlan_gpe_ioam_export_ipfix_command_fn,
+};
+/* *INDENT-ON* */
+
+
+static clib_error_t *
+vxlan_gpe_ioam_export_init (vlib_main_t * vm)
+{
+ ioam_export_main_t *em = &vxlan_gpe_ioam_export_main;
+ clib_error_t *error = 0;
+ u8 *name;
+
+ name = format (0, "vxlan_gpe_ioam_export_%08x%c", api_version, 0);
+
+ /* Ask for a correctly-sized block of API message decode slots */
+ em->msg_id_base = vl_msg_api_get_msg_ids
+ ((char *) name, VL_MSG_FIRST_AVAILABLE);
+ em->unix_time_0 = (u32) time (0); /* Store starting time */
+ em->vlib_time_0 = vlib_time_now (vm);
+
+ error = vxlan_gpe_ioam_export_plugin_api_hookup (vm);
+ em->my_hbh_slot = ~0;
+ em->vlib_main = vm;
+ em->vnet_main = vnet_get_main ();
+ vec_free (name);
+
+ return error;
+}
+
+VLIB_INIT_FUNCTION (vxlan_gpe_ioam_export_init);
+
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/plugins/ioam/export-vxlan-gpe/vxlan_gpe_ioam_export_all_api_h.h b/src/plugins/ioam/export-vxlan-gpe/vxlan_gpe_ioam_export_all_api_h.h
new file mode 100644
index 00000000000..6d93f09341a
--- /dev/null
+++ b/src/plugins/ioam/export-vxlan-gpe/vxlan_gpe_ioam_export_all_api_h.h
@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/* Include the generated file, see BUILT_SOURCES in Makefile.am */
+#include <ioam/export-vxlan-gpe/vxlan_gpe_ioam_export.api.h>
diff --git a/src/plugins/ioam/export-vxlan-gpe/vxlan_gpe_ioam_export_msg_enum.h b/src/plugins/ioam/export-vxlan-gpe/vxlan_gpe_ioam_export_msg_enum.h
new file mode 100644
index 00000000000..cc5698de334
--- /dev/null
+++ b/src/plugins/ioam/export-vxlan-gpe/vxlan_gpe_ioam_export_msg_enum.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef included_vxlan_gpe_ioam_export_msg_enum_h
+#define included_vxlan_gpe_ioam_export_msg_enum_h
+
+#include <vppinfra/byte_order.h>
+
+#define vl_msg_id(n,h) n,
+typedef enum {
+#include <ioam/export-vxlan-gpe/vxlan_gpe_ioam_export_all_api_h.h>
+ /* We'll want to know how many messages IDs we need... */
+ VL_MSG_FIRST_AVAILABLE,
+} vl_msg_id_t;
+#undef vl_msg_id
+
+#endif /* included_vxlan_gpe_ioam_export_msg_enum_h */
diff --git a/src/plugins/ioam/export-vxlan-gpe/vxlan_gpe_ioam_export_test.c b/src/plugins/ioam/export-vxlan-gpe/vxlan_gpe_ioam_export_test.c
new file mode 100644
index 00000000000..494263d9a1a
--- /dev/null
+++ b/src/plugins/ioam/export-vxlan-gpe/vxlan_gpe_ioam_export_test.c
@@ -0,0 +1,215 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
+ *------------------------------------------------------------------
+ * vxlan_gpe_ioam_export_test.c - test harness plugin
+ *------------------------------------------------------------------
+ */
+
+#include <vat/vat.h>
+#include <vlibapi/api.h>
+#include <vlibmemory/api.h>
+#include <vlibsocket/api.h>
+#include <vppinfra/error.h>
+
+
+/* Declare message IDs */
+#include <ioam/export-vxlan-gpe/vxlan_gpe_ioam_export_msg_enum.h>
+
+/* define message structures */
+#define vl_typedefs
+#include <ioam/export-vxlan-gpe/vxlan_gpe_ioam_export_all_api_h.h>
+#undef vl_typedefs
+
+/* declare message handlers for each api */
+
+#define vl_endianfun /* define message structures */
+#include <ioam/export-vxlan-gpe/vxlan_gpe_ioam_export_all_api_h.h>
+#undef vl_endianfun
+
+/* instantiate all the print functions we know about */
+#define vl_print(handle, ...)
+#define vl_printfun
+#include <ioam/export-vxlan-gpe/vxlan_gpe_ioam_export_all_api_h.h>
+#undef vl_printfun
+
+/* Get the API version number. */
+#define vl_api_version(n,v) static u32 api_version=(v);
+#include <ioam/export-vxlan-gpe/vxlan_gpe_ioam_export_all_api_h.h>
+#undef vl_api_version
+
+
+typedef struct
+{
+ /* API message ID base */
+ u16 msg_id_base;
+ vat_main_t *vat_main;
+} export_test_main_t;
+
+export_test_main_t export_test_main;
+
+#define foreach_standard_reply_retval_handler \
+_(vxlan_gpe_ioam_export_enable_disable_reply)
+
+#define _(n) \
+ static void vl_api_##n##_t_handler \
+ (vl_api_##n##_t * mp) \
+ { \
+ vat_main_t * vam = export_test_main.vat_main; \
+ i32 retval = ntohl(mp->retval); \
+ if (vam->async_mode) { \
+ vam->async_errors += (retval < 0); \
+ } else { \
+ vam->retval = retval; \
+ vam->result_ready = 1; \
+ } \
+ }
+foreach_standard_reply_retval_handler;
+#undef _
+
+/*
+ * Table of message reply handlers, must include boilerplate handlers
+ * we just generated
+ */
+#define foreach_vpe_api_reply_msg \
+_(VXLAN_GPE_IOAM_EXPORT_ENABLE_DISABLE_REPLY, vxlan_gpe_ioam_export_enable_disable_reply)
+
+
+/* M: construct, but don't yet send a message */
+
+#define M(T,t) \
+do { \
+ vam->result_ready = 0; \
+ mp = vl_msg_api_alloc(sizeof(*mp)); \
+ memset (mp, 0, sizeof (*mp)); \
+ mp->_vl_msg_id = ntohs (VL_API_##T + sm->msg_id_base); \
+ mp->client_index = vam->my_client_index; \
+} while(0);
+
+#define M2(T,t,n) \
+do { \
+ vam->result_ready = 0; \
+ mp = vl_msg_api_alloc(sizeof(*mp)+(n)); \
+ memset (mp, 0, sizeof (*mp)); \
+ mp->_vl_msg_id = ntohs (VL_API_##T + sm->msg_id_base); \
+ mp->client_index = vam->my_client_index; \
+} while(0);
+
+/* S: send a message */
+#define S (vl_msg_api_send_shmem (vam->vl_input_queue, (u8 *)&mp))
+
+/* W: wait for results, with timeout */
+#define W \
+do { \
+ timeout = vat_time_now (vam) + 1.0; \
+ \
+ while (vat_time_now (vam) < timeout) { \
+ if (vam->result_ready == 1) { \
+ return (vam->retval); \
+ } \
+ } \
+ return -99; \
+} while(0);
+
+static int
+api_vxlan_gpe_ioam_export_enable_disable (vat_main_t * vam)
+{
+ export_test_main_t *sm = &export_test_main;
+ unformat_input_t *i = vam->input;
+ f64 timeout;
+ int is_disable = 0;
+ vl_api_vxlan_gpe_ioam_export_enable_disable_t *mp;
+
+ /* Parse args required to build the message */
+ while (unformat_check_input (i) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (i, "disable"))
+ is_disable = 1;
+ else
+ break;
+ }
+
+ /* Construct the API message */
+ M (VXLAN_GPE_IOAM_EXPORT_ENABLE_DISABLE,
+ vxlan_gpe_ioam_export_enable_disable);
+ mp->is_disable = is_disable;
+
+ /* send it... */
+ S;
+
+ /* Wait for a reply... */
+ W;
+}
+
+/*
+ * List of messages that the api test plugin sends,
+ * and that the data plane plugin processes
+ */
+#define foreach_vpe_api_msg \
+_(vxlan_gpe_ioam_export_enable_disable, "<intfc> [disable]")
+
+void
+vat_api_hookup (vat_main_t * vam)
+{
+ export_test_main_t *sm = &export_test_main;
+ /* Hook up handlers for replies from the data plane plug-in */
+#define _(N,n) \
+ vl_msg_api_set_handlers((VL_API_##N + sm->msg_id_base), \
+ #n, \
+ vl_api_##n##_t_handler, \
+ vl_noop_handler, \
+ vl_api_##n##_t_endian, \
+ vl_api_##n##_t_print, \
+ sizeof(vl_api_##n##_t), 1);
+ foreach_vpe_api_reply_msg;
+#undef _
+
+ /* API messages we can send */
+#define _(n,h) hash_set_mem (vam->function_by_name, #n, api_##n);
+ foreach_vpe_api_msg;
+#undef _
+
+ /* Help strings */
+#define _(n,h) hash_set_mem (vam->help_by_name, #n, h);
+ foreach_vpe_api_msg;
+#undef _
+}
+
+clib_error_t *
+vat_plugin_register (vat_main_t * vam)
+{
+ export_test_main_t *sm = &export_test_main;
+ u8 *name;
+
+ sm->vat_main = vam;
+
+ name = format (0, "vxlan_gpe_ioam_export_%08x%c", api_version, 0);
+ sm->msg_id_base = vl_client_get_first_plugin_msg_id ((char *) name);
+
+ if (sm->msg_id_base != (u16) ~ 0)
+ vat_api_hookup (vam);
+
+ vec_free (name);
+
+ return 0;
+}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/plugins/ioam/export-vxlan-gpe/vxlan_gpe_ioam_export_thread.c b/src/plugins/ioam/export-vxlan-gpe/vxlan_gpe_ioam_export_thread.c
new file mode 100644
index 00000000000..58508ebf10e
--- /dev/null
+++ b/src/plugins/ioam/export-vxlan-gpe/vxlan_gpe_ioam_export_thread.c
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
+ * ioam_export_thread.c
+ */
+#include <vnet/api_errno.h>
+#include <vppinfra/pool.h>
+#include <ioam/export-common/ioam_export.h>
+
+static vlib_node_registration_t vxlan_gpe_ioam_export_process_node;
+
+static uword
+vxlan_gpe_ioam_export_process (vlib_main_t * vm,
+ vlib_node_runtime_t * rt, vlib_frame_t * f)
+{
+ return (ioam_export_process_common (&vxlan_gpe_ioam_export_main,
+ vm, rt, f,
+ vxlan_gpe_ioam_export_process_node.index));
+}
+
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (vxlan_gpe_ioam_export_process_node, static) =
+{
+ .function = vxlan_gpe_ioam_export_process,
+ .type = VLIB_NODE_TYPE_PROCESS,
+ .name = "vxlan-gpe-ioam-export-process",
+};
+/* *INDENT-ON* */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/plugins/ioam/export-vxlan-gpe/vxlan_gpe_node.c b/src/plugins/ioam/export-vxlan-gpe/vxlan_gpe_node.c
new file mode 100644
index 00000000000..722c2b061c0
--- /dev/null
+++ b/src/plugins/ioam/export-vxlan-gpe/vxlan_gpe_node.c
@@ -0,0 +1,162 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <vlib/vlib.h>
+#include <vnet/vnet.h>
+#include <vnet/pg/pg.h>
+#include <vppinfra/error.h>
+#include <vnet/ip/ip.h>
+#include <ioam/export-common/ioam_export.h>
+#include <vnet/vxlan-gpe/vxlan_gpe.h>
+#include <vnet/vxlan-gpe/vxlan_gpe_packet.h>
+
+typedef struct
+{
+ u32 next_index;
+ u32 flow_label;
+} export_trace_t;
+
+/* packet trace format function */
+static u8 *
+format_export_trace (u8 * s, va_list * args)
+{
+ CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
+ CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
+ export_trace_t *t = va_arg (*args, export_trace_t *);
+
+ s = format (s, "EXPORT: flow_label %d, next index %d",
+ t->flow_label, t->next_index);
+ return s;
+}
+
+vlib_node_registration_t export_node;
+
+#define foreach_export_error \
+_(RECORDED, "Packets recorded for export")
+
+typedef enum
+{
+#define _(sym,str) EXPORT_ERROR_##sym,
+ foreach_export_error
+#undef _
+ EXPORT_N_ERROR,
+} export_error_t;
+
+static char *export_error_strings[] = {
+#define _(sym,string) string,
+ foreach_export_error
+#undef _
+};
+
+typedef enum
+{
+ EXPORT_NEXT_VXLAN_GPE_INPUT,
+ EXPORT_N_NEXT,
+} export_next_t;
+
+always_inline void
+copy3cachelines (void *dst, const void *src, size_t n)
+{
+#if 0
+ if (PREDICT_FALSE (n < DEFAULT_EXPORT_SIZE))
+ {
+ /* Copy only the first 1/2 cache lines whatever is available */
+ if (n >= 64)
+ clib_mov64 ((u8 *) dst, (const u8 *) src);
+ if (n >= 128)
+ clib_mov64 ((u8 *) dst + 64, (const u8 *) src + 64);
+ return;
+ }
+ clib_mov64 ((u8 *) dst, (const u8 *) src);
+ clib_mov64 ((u8 *) dst + 64, (const u8 *) src + 64);
+ clib_mov64 ((u8 *) dst + 128, (const u8 *) src + 128);
+#endif
+#if 1
+
+ u64 *copy_dst, *copy_src;
+ int i;
+ copy_dst = (u64 *) dst;
+ copy_src = (u64 *) src;
+ if (PREDICT_FALSE (n < DEFAULT_EXPORT_SIZE))
+ {
+ for (i = 0; i < n / 64; i++)
+ {
+ copy_dst[0] = copy_src[0];
+ copy_dst[1] = copy_src[1];
+ copy_dst[2] = copy_src[2];
+ copy_dst[3] = copy_src[3];
+ copy_dst[4] = copy_src[4];
+ copy_dst[5] = copy_src[5];
+ copy_dst[6] = copy_src[6];
+ copy_dst[7] = copy_src[7];
+ copy_dst += 8;
+ copy_src += 8;
+ }
+ return;
+ }
+ for (i = 0; i < 3; i++)
+ {
+ copy_dst[0] = copy_src[0];
+ copy_dst[1] = copy_src[1];
+ copy_dst[2] = copy_src[2];
+ copy_dst[3] = copy_src[3];
+ copy_dst[4] = copy_src[4];
+ copy_dst[5] = copy_src[5];
+ copy_dst[6] = copy_src[6];
+ copy_dst[7] = copy_src[7];
+ copy_dst += 8;
+ copy_src += 8;
+ }
+#endif
+}
+
+
+static uword
+vxlan_gpe_export_node_fn (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ ioam_export_main_t *em = &vxlan_gpe_ioam_export_main;
+ ioam_export_node_common (em, vm, node, frame, ip4_header_t, length,
+ ip_version_and_header_length,
+ EXPORT_NEXT_VXLAN_GPE_INPUT);
+ return frame->n_vectors;
+}
+
+/*
+ * Node for VXLAN-GPE export
+ */
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (export_node) =
+{
+ .function = vxlan_gpe_export_node_fn,
+ .name = "vxlan-gpe-ioam-export",
+ .vector_size = sizeof (u32),
+ .format_trace = format_export_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_errors = ARRAY_LEN (export_error_strings),
+ .error_strings = export_error_strings,
+ .n_next_nodes = EXPORT_N_NEXT,
+ /* edit / add dispositions here */
+ .next_nodes =
+ {[EXPORT_NEXT_VXLAN_GPE_INPUT] = "vxlan-gpe-pop-ioam-v4"},
+};
+/* *INDENT-ON* */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/plugins/ioam/export/ioam_export.api b/src/plugins/ioam/export/ioam_export.api
new file mode 100644
index 00000000000..f22d9fc8ebe
--- /dev/null
+++ b/src/plugins/ioam/export/ioam_export.api
@@ -0,0 +1,42 @@
+/* Hey Emacs use -*- mode: C -*- */
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/* Define a simple binary API to control the feature */
+
+define ioam_export_ip6_enable_disable {
+ /* Client identifier, set from api_main.my_client_index */
+ u32 client_index;
+
+ /* Arbitrary context, so client can match reply to request */
+ u32 context;
+
+ /* Enable / disable the feature */
+ u8 is_disable;
+
+ /* Collector ip address */
+ u8 collector_address[4];
+ u8 src_address[4];
+
+ /* Src ip address */
+};
+
+define ioam_export_ip6_enable_disable_reply {
+ /* From the request */
+ u32 context;
+
+ /* Return value, zero means all OK */
+ i32 retval;
+};
diff --git a/src/plugins/ioam/export/ioam_export.c b/src/plugins/ioam/export/ioam_export.c
new file mode 100644
index 00000000000..b122e445b28
--- /dev/null
+++ b/src/plugins/ioam/export/ioam_export.c
@@ -0,0 +1,282 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
+ *------------------------------------------------------------------
+ * ioam_export.c - ioam export API / debug CLI handling
+ *------------------------------------------------------------------
+ */
+
+#include <vnet/vnet.h>
+#include <vnet/plugin/plugin.h>
+#include <ioam/export-common/ioam_export.h>
+
+#include <vlibapi/api.h>
+#include <vlibmemory/api.h>
+#include <vlibsocket/api.h>
+#include <vnet/ip/ip6_hop_by_hop.h>
+
+
+/* define message IDs */
+#include <ioam/export/ioam_export_msg_enum.h>
+
+/* define message structures */
+#define vl_typedefs
+#include <ioam/export/ioam_export_all_api_h.h>
+#undef vl_typedefs
+
+/* define generated endian-swappers */
+#define vl_endianfun
+#include <ioam/export/ioam_export_all_api_h.h>
+#undef vl_endianfun
+
+/* instantiate all the print functions we know about */
+#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
+#define vl_printfun
+#include <ioam/export/ioam_export_all_api_h.h>
+#undef vl_printfun
+
+/* Get the API version number */
+#define vl_api_version(n,v) static u32 api_version=(v);
+#include <ioam/export/ioam_export_all_api_h.h>
+#undef vl_api_version
+
+/*
+ * A handy macro to set up a message reply.
+ * Assumes that the following variables are available:
+ * mp - pointer to request message
+ * rmp - pointer to reply message type
+ * rv - return value
+ */
+
+#define REPLY_MACRO(t) \
+do { \
+ unix_shared_memory_queue_t * q = \
+ vl_api_client_index_to_input_queue (mp->client_index); \
+ if (!q) \
+ return; \
+ \
+ rmp = vl_msg_api_alloc (sizeof (*rmp)); \
+ rmp->_vl_msg_id = ntohs((t)+sm->msg_id_base); \
+ rmp->context = mp->context; \
+ rmp->retval = ntohl(rv); \
+ \
+ vl_msg_api_send_shmem (q, (u8 *)&rmp); \
+} while(0);
+
+
+/* List of message types that this plugin understands */
+
+#define foreach_ioam_export_plugin_api_msg \
+_(IOAM_EXPORT_IP6_ENABLE_DISABLE, ioam_export_ip6_enable_disable)
+
+/*
+ * This routine exists to convince the vlib plugin framework that
+ * we haven't accidentally copied a random .dll into the plugin directory.
+ *
+ * Also collects global variable pointers passed from the vpp engine
+ */
+
+clib_error_t *
+vlib_plugin_register (vlib_main_t * vm, vnet_plugin_handoff_t * h,
+ int from_early_init)
+{
+ ioam_export_main_t *em = &ioam_export_main;
+ clib_error_t *error = 0;
+
+ em->vlib_main = vm;
+ em->vnet_main = h->vnet_main;
+
+ return error;
+}
+
+/* Action function shared between message handler and debug CLI */
+
+int
+ioam_export_ip6_enable_disable (ioam_export_main_t * em,
+ u8 is_disable,
+ ip4_address_t * collector_address,
+ ip4_address_t * src_address)
+{
+ vlib_main_t *vm = em->vlib_main;
+
+ if (is_disable == 0)
+ {
+ if (1 == ioam_export_header_create (em, collector_address, src_address))
+ {
+ ioam_export_thread_buffer_init (em, vm);
+ ip6_hbh_set_next_override (em->my_hbh_slot);
+ /* Turn on the export buffer check process */
+ vlib_process_signal_event (vm, em->export_process_node_index, 1, 0);
+
+ }
+ else
+ {
+ return (-2);
+ }
+ }
+ else
+ {
+ ip6_hbh_set_next_override (IP6_LOOKUP_NEXT_POP_HOP_BY_HOP);
+ ioam_export_header_cleanup (em, collector_address, src_address);
+ ioam_export_thread_buffer_free (em);
+ /* Turn off the export buffer check process */
+ vlib_process_signal_event (vm, em->export_process_node_index, 2, 0);
+
+ }
+
+ return 0;
+}
+
+/* API message handler */
+static void vl_api_ioam_export_ip6_enable_disable_t_handler
+ (vl_api_ioam_export_ip6_enable_disable_t * mp)
+{
+ vl_api_ioam_export_ip6_enable_disable_reply_t *rmp;
+ ioam_export_main_t *sm = &ioam_export_main;
+ int rv;
+
+ rv = ioam_export_ip6_enable_disable (sm, (int) (mp->is_disable),
+ (ip4_address_t *)
+ mp->collector_address,
+ (ip4_address_t *) mp->src_address);
+
+ REPLY_MACRO (VL_API_IOAM_EXPORT_IP6_ENABLE_DISABLE_REPLY);
+}
+
+/* Set up the API message handling tables */
+static clib_error_t *
+ioam_export_plugin_api_hookup (vlib_main_t * vm)
+{
+ ioam_export_main_t *sm = &ioam_export_main;
+#define _(N,n) \
+ vl_msg_api_set_handlers((VL_API_##N + sm->msg_id_base), \
+ #n, \
+ vl_api_##n##_t_handler, \
+ vl_noop_handler, \
+ vl_api_##n##_t_endian, \
+ vl_api_##n##_t_print, \
+ sizeof(vl_api_##n##_t), 1);
+ foreach_ioam_export_plugin_api_msg;
+#undef _
+
+ return 0;
+}
+
+#define vl_msg_name_crc_list
+#include <ioam/export/ioam_export_all_api_h.h>
+#undef vl_msg_name_crc_list
+
+static void
+setup_message_id_table (ioam_export_main_t * sm, api_main_t * am)
+{
+#define _(id,n,crc) \
+ vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id + sm->msg_id_base);
+ foreach_vl_msg_name_crc_ioam_export;
+#undef _
+}
+
+static clib_error_t *
+set_ioam_export_ipfix_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ ioam_export_main_t *em = &ioam_export_main;
+ ip4_address_t collector, src;
+ u8 is_disable = 0;
+
+ collector.as_u32 = 0;
+ src.as_u32 = 0;
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "collector %U", unformat_ip4_address, &collector))
+ ;
+ else if (unformat (input, "src %U", unformat_ip4_address, &src))
+ ;
+ else if (unformat (input, "disable"))
+ is_disable = 1;
+ else
+ break;
+ }
+
+ if (collector.as_u32 == 0)
+ return clib_error_return (0, "collector address required");
+
+ if (src.as_u32 == 0)
+ return clib_error_return (0, "src address required");
+
+ em->ipfix_collector.as_u32 = collector.as_u32;
+ em->src_address.as_u32 = src.as_u32;
+
+ vlib_cli_output (vm, "Collector %U, src address %U",
+ format_ip4_address, &em->ipfix_collector,
+ format_ip4_address, &em->src_address);
+
+ /* Turn on the export timer process */
+ // vlib_process_signal_event (vm, flow_report_process_node.index,
+ //1, 0);
+ ioam_export_ip6_enable_disable (em, is_disable, &collector, &src);
+
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (set_ipfix_command, static) =
+{
+.path = "set ioam export ipfix",.short_help =
+ "set ioam export ipfix collector <ip4-address> src <ip4-address>",.
+ function = set_ioam_export_ipfix_command_fn,};
+/* *INDENT-ON* */
+
+
+static clib_error_t *
+ioam_export_init (vlib_main_t * vm)
+{
+ ioam_export_main_t *em = &ioam_export_main;
+ clib_error_t *error = 0;
+ u8 *name;
+ u32 node_index = export_node.index;
+ vlib_node_t *ip6_hbyh_node = NULL;
+
+ name = format (0, "ioam_export_%08x%c", api_version, 0);
+
+ /* Ask for a correctly-sized block of API message decode slots */
+ em->msg_id_base = vl_msg_api_get_msg_ids
+ ((char *) name, VL_MSG_FIRST_AVAILABLE);
+ em->unix_time_0 = (u32) time (0); /* Store starting time */
+ em->vlib_time_0 = vlib_time_now (vm);
+
+ error = ioam_export_plugin_api_hookup (vm);
+
+ /* Add our API messages to the global name_crc hash table */
+ setup_message_id_table (em, &api_main);
+
+ /* Hook this export node to ip6-hop-by-hop */
+ ip6_hbyh_node = vlib_get_node_by_name (vm, (u8 *) "ip6-hop-by-hop");
+ em->my_hbh_slot = vlib_node_add_next (vm, ip6_hbyh_node->index, node_index);
+ vec_free (name);
+
+ return error;
+}
+
+VLIB_INIT_FUNCTION (ioam_export_init);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/plugins/ioam/export/ioam_export_all_api_h.h b/src/plugins/ioam/export/ioam_export_all_api_h.h
new file mode 100644
index 00000000000..bc4368f2acb
--- /dev/null
+++ b/src/plugins/ioam/export/ioam_export_all_api_h.h
@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/* Include the generated file, see BUILT_SOURCES in Makefile.am */
+#include <ioam/export/ioam_export.api.h>
diff --git a/src/plugins/ioam/export/ioam_export_msg_enum.h b/src/plugins/ioam/export/ioam_export_msg_enum.h
new file mode 100644
index 00000000000..c2de798893c
--- /dev/null
+++ b/src/plugins/ioam/export/ioam_export_msg_enum.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef included_ioam_export_msg_enum_h
+#define included_ioam_export_msg_enum_h
+
+#include <vppinfra/byte_order.h>
+
+#define vl_msg_id(n,h) n,
+typedef enum {
+#include <ioam/export/ioam_export_all_api_h.h>
+ /* We'll want to know how many messages IDs we need... */
+ VL_MSG_FIRST_AVAILABLE,
+} vl_msg_id_t;
+#undef vl_msg_id
+
+#endif /* included_ioam_export_msg_enum_h */
diff --git a/src/plugins/ioam/export/ioam_export_test.c b/src/plugins/ioam/export/ioam_export_test.c
new file mode 100644
index 00000000000..f991fc0c795
--- /dev/null
+++ b/src/plugins/ioam/export/ioam_export_test.c
@@ -0,0 +1,206 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
+ *------------------------------------------------------------------
+ * ioam_export_test.c - test harness plugin
+ *------------------------------------------------------------------
+ */
+
+#include <vat/vat.h>
+#include <vlibapi/api.h>
+#include <vlibmemory/api.h>
+#include <vlibsocket/api.h>
+#include <vppinfra/error.h>
+
+
+/* Declare message IDs */
+#include <ioam/export/ioam_export_msg_enum.h>
+
+/* define message structures */
+#define vl_typedefs
+#include <ioam/export/ioam_export_all_api_h.h>
+#undef vl_typedefs
+
+/* declare message handlers for each api */
+
+#define vl_endianfun /* define message structures */
+#include <ioam/export/ioam_export_all_api_h.h>
+#undef vl_endianfun
+
+/* instantiate all the print functions we know about */
+#define vl_print(handle, ...)
+#define vl_printfun
+#include <ioam/export/ioam_export_all_api_h.h>
+#undef vl_printfun
+
+/* Get the API version number. */
+#define vl_api_version(n,v) static u32 api_version=(v);
+#include <ioam/export/ioam_export_all_api_h.h>
+#undef vl_api_version
+
+
+typedef struct
+{
+ /* API message ID base */
+ u16 msg_id_base;
+ vat_main_t *vat_main;
+} export_test_main_t;
+
+export_test_main_t export_test_main;
+
+#define foreach_standard_reply_retval_handler \
+_(ioam_export_ip6_enable_disable_reply)
+
+#define _(n) \
+ static void vl_api_##n##_t_handler \
+ (vl_api_##n##_t * mp) \
+ { \
+ vat_main_t * vam = export_test_main.vat_main; \
+ i32 retval = ntohl(mp->retval); \
+ if (vam->async_mode) { \
+ vam->async_errors += (retval < 0); \
+ } else { \
+ vam->retval = retval; \
+ vam->result_ready = 1; \
+ } \
+ }
+foreach_standard_reply_retval_handler;
+#undef _
+
+/*
+ * Table of message reply handlers, must include boilerplate handlers
+ * we just generated
+ */
+#define foreach_vpe_api_reply_msg \
+_(IOAM_EXPORT_IP6_ENABLE_DISABLE_REPLY, ioam_export_ip6_enable_disable_reply)
+
+
+/* M: construct, but don't yet send a message */
+
+#define M(T,t) \
+do { \
+ vam->result_ready = 0; \
+ mp = vl_msg_api_alloc(sizeof(*mp)); \
+ memset (mp, 0, sizeof (*mp)); \
+ mp->_vl_msg_id = ntohs (VL_API_##T + sm->msg_id_base); \
+ mp->client_index = vam->my_client_index; \
+} while(0);
+
+#define M2(T,t,n) \
+do { \
+ vam->result_ready = 0; \
+ mp = vl_msg_api_alloc(sizeof(*mp)+(n)); \
+ memset (mp, 0, sizeof (*mp)); \
+ mp->_vl_msg_id = ntohs (VL_API_##T + sm->msg_id_base); \
+ mp->client_index = vam->my_client_index; \
+} while(0);
+
+/* S: send a message */
+#define S (vl_msg_api_send_shmem (vam->vl_input_queue, (u8 *)&mp))
+
+/* W: wait for results, with timeout */
+#define W \
+do { \
+ timeout = vat_time_now (vam) + 1.0; \
+ \
+ while (vat_time_now (vam) < timeout) { \
+ if (vam->result_ready == 1) { \
+ return (vam->retval); \
+ } \
+ } \
+ return -99; \
+} while(0);
+
+static int
+api_ioam_export_ip6_enable_disable (vat_main_t * vam)
+{
+ export_test_main_t *sm = &export_test_main;
+ unformat_input_t *i = vam->input;
+ f64 timeout;
+ int is_disable = 0;
+ vl_api_ioam_export_ip6_enable_disable_t *mp;
+
+ /* Parse args required to build the message */
+ while (unformat_check_input (i) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (i, "disable"))
+ is_disable = 1;
+ else
+ break;
+ }
+
+ /* Construct the API message */
+ M (IOAM_EXPORT_IP6_ENABLE_DISABLE, ioam_export_ip6_enable_disable);
+ mp->is_disable = is_disable;
+
+ /* send it... */
+ S;
+
+ /* Wait for a reply... */
+ W;
+}
+
+/*
+ * List of messages that the api test plugin sends,
+ * and that the data plane plugin processes
+ */
+#define foreach_vpe_api_msg \
+_(ioam_export_ip6_enable_disable, "<intfc> [disable]")
+
+void
+vat_api_hookup (vat_main_t * vam)
+{
+ export_test_main_t *sm = &export_test_main;
+ /* Hook up handlers for replies from the data plane plug-in */
+#define _(N,n) \
+ vl_msg_api_set_handlers((VL_API_##N + sm->msg_id_base), \
+ #n, \
+ vl_api_##n##_t_handler, \
+ vl_noop_handler, \
+ vl_api_##n##_t_endian, \
+ vl_api_##n##_t_print, \
+ sizeof(vl_api_##n##_t), 1);
+ foreach_vpe_api_reply_msg;
+#undef _
+
+ /* API messages we can send */
+#define _(n,h) hash_set_mem (vam->function_by_name, #n, api_##n);
+ foreach_vpe_api_msg;
+#undef _
+
+ /* Help strings */
+#define _(n,h) hash_set_mem (vam->help_by_name, #n, h);
+ foreach_vpe_api_msg;
+#undef _
+}
+
+clib_error_t *
+vat_plugin_register (vat_main_t * vam)
+{
+ export_test_main_t *sm = &export_test_main;
+ u8 *name;
+
+ sm->vat_main = vam;
+
+ name = format (0, "ioam_export_%08x%c", api_version, 0);
+ sm->msg_id_base = vl_client_get_first_plugin_msg_id ((char *) name);
+
+ if (sm->msg_id_base != (u16) ~ 0)
+ vat_api_hookup (vam);
+
+ vec_free (name);
+
+ return 0;
+}
diff --git a/src/plugins/ioam/export/ioam_export_thread.c b/src/plugins/ioam/export/ioam_export_thread.c
new file mode 100644
index 00000000000..d2eb200936a
--- /dev/null
+++ b/src/plugins/ioam/export/ioam_export_thread.c
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
+ * ioam_export_thread.c
+ */
+#include <vnet/api_errno.h>
+#include <vppinfra/pool.h>
+#include <ioam/export-common/ioam_export.h>
+
+static vlib_node_registration_t ioam_export_process_node;
+
+static uword
+ioam_export_process (vlib_main_t * vm,
+ vlib_node_runtime_t * rt, vlib_frame_t * f)
+{
+ return (ioam_export_process_common(&ioam_export_main,
+ vm, rt, f,
+ ioam_export_process_node.index));
+}
+
+VLIB_REGISTER_NODE (ioam_export_process_node, static) =
+{
+ .function = ioam_export_process,
+ .type = VLIB_NODE_TYPE_PROCESS,
+ .name = "ioam-export-process",
+};
diff --git a/src/plugins/ioam/export/node.c b/src/plugins/ioam/export/node.c
new file mode 100644
index 00000000000..19f143dfbf3
--- /dev/null
+++ b/src/plugins/ioam/export/node.c
@@ -0,0 +1,151 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <vlib/vlib.h>
+#include <vnet/vnet.h>
+#include <vnet/pg/pg.h>
+#include <vppinfra/error.h>
+#include <vnet/ip/ip.h>
+#include <ioam/export-common/ioam_export.h>
+
+typedef struct
+{
+ u32 next_index;
+ u32 flow_label;
+} export_trace_t;
+
+/* packet trace format function */
+static u8 *
+format_export_trace (u8 * s, va_list * args)
+{
+ CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
+ CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
+ export_trace_t *t = va_arg (*args, export_trace_t *);
+
+ s = format (s, "EXPORT: flow_label %d, next index %d",
+ t->flow_label, t->next_index);
+ return s;
+}
+
+vlib_node_registration_t export_node;
+
+#define foreach_export_error \
+_(RECORDED, "Packets recorded for export")
+
+typedef enum
+{
+#define _(sym,str) EXPORT_ERROR_##sym,
+ foreach_export_error
+#undef _
+ EXPORT_N_ERROR,
+} export_error_t;
+
+static char *export_error_strings[] = {
+#define _(sym,string) string,
+ foreach_export_error
+#undef _
+};
+
+typedef enum
+{
+ EXPORT_NEXT_POP_HBYH,
+ EXPORT_N_NEXT,
+} export_next_t;
+
+always_inline void
+copy3cachelines (void *dst, const void *src, size_t n)
+{
+#if 0
+ if (PREDICT_FALSE (n < DEFAULT_EXPORT_SIZE))
+ {
+ /* Copy only the first 1/2 cache lines whatever is available */
+ if (n >= 64)
+ clib_mov64 ((u8 *) dst, (const u8 *) src);
+ if (n >= 128)
+ clib_mov64 ((u8 *) dst + 64, (const u8 *) src + 64);
+ return;
+ }
+ clib_mov64 ((u8 *) dst, (const u8 *) src);
+ clib_mov64 ((u8 *) dst + 64, (const u8 *) src + 64);
+ clib_mov64 ((u8 *) dst + 128, (const u8 *) src + 128);
+#endif
+#if 1
+
+ u64 *copy_dst, *copy_src;
+ int i;
+ copy_dst = (u64 *) dst;
+ copy_src = (u64 *) src;
+ if (PREDICT_FALSE (n < DEFAULT_EXPORT_SIZE))
+ {
+ for (i = 0; i < n / 64; i++)
+ {
+ copy_dst[0] = copy_src[0];
+ copy_dst[1] = copy_src[1];
+ copy_dst[2] = copy_src[2];
+ copy_dst[3] = copy_src[3];
+ copy_dst[4] = copy_src[4];
+ copy_dst[5] = copy_src[5];
+ copy_dst[6] = copy_src[6];
+ copy_dst[7] = copy_src[7];
+ copy_dst += 8;
+ copy_src += 8;
+ }
+ return;
+ }
+ for (i = 0; i < 3; i++)
+ {
+ copy_dst[0] = copy_src[0];
+ copy_dst[1] = copy_src[1];
+ copy_dst[2] = copy_src[2];
+ copy_dst[3] = copy_src[3];
+ copy_dst[4] = copy_src[4];
+ copy_dst[5] = copy_src[5];
+ copy_dst[6] = copy_src[6];
+ copy_dst[7] = copy_src[7];
+ copy_dst += 8;
+ copy_src += 8;
+ }
+#endif
+}
+
+static uword
+ip6_export_node_fn (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ ioam_export_main_t *em = &ioam_export_main;
+ ioam_export_node_common(em, vm, node, frame, ip6_header_t, payload_length,
+ ip_version_traffic_class_and_flow_label,
+ EXPORT_NEXT_POP_HBYH);
+ return frame->n_vectors;
+}
+
+/*
+ * Node for IP6 export
+ */
+VLIB_REGISTER_NODE (export_node) =
+{
+ .function = ip6_export_node_fn,
+ .name = "ip6-export",
+ .vector_size = sizeof (u32),
+ .format_trace = format_export_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_errors = ARRAY_LEN (export_error_strings),
+ .error_strings = export_error_strings,
+ .n_next_nodes = EXPORT_N_NEXT,
+ /* edit / add dispositions here */
+ .next_nodes =
+ {
+ [EXPORT_NEXT_POP_HBYH] = "ip6-pop-hop-by-hop"
+ },
+};
diff --git a/src/plugins/ioam/ioam_plugin_doc.md b/src/plugins/ioam/ioam_plugin_doc.md
new file mode 100644
index 00000000000..343abcf73d8
--- /dev/null
+++ b/src/plugins/ioam/ioam_plugin_doc.md
@@ -0,0 +1,464 @@
+## VPP Inband OAM (iOAM) {#ioam_plugin_doc}
+
+In-band OAM (iOAM) is an implementation study to record operational
+information in the packet while the packet traverses a path between
+two points in the network.
+
+Overview of iOAM can be found in [iOAM-Devnet] page.
+The following IETF drafts detail the motivation and mechanism for
+recording operational information:
+ - [iOAM-ietf-requirements] - Describes motivation and usecases for iOAM
+ - [iOAM-ietf-data] - Describes data records that can be collected using iOAM
+ - [iOAM-ietf-transport] - Lists out the transport protocols
+ and mechanism to carry iOAM data records
+ - [iOAM-ietf-proof-of-transit] - Describes the idea of Proof of Transit (POT)
+ and mechanisms to operationalize the idea
+
+## Terminology
+In-band OAM is expected to be deployed in a specific domain rather
+than on the overall Internet. The part of the network which employs in-band OAM
+is referred to as **"in-band OAM-domain"**.
+
+In-band OAM data is added to a packet on entering the in-band OAM-domain
+and is removed from the packet when exiting the domain.
+Within the in-band OAM-domain, network nodes that the packet traverses
+may update the in-band OAM data records.
+
+- The node which adds in-band OAM data to the packet is called the
+**"in-band OAM encapsulating node"**.
+
+- The node which removes the in-band OAM data is referred to as the
+**"in-band OAM decapsulating node"**.
+
+- Nodes within the domain which are aware of in-band OAM data and read
+and/or write or process the in-band OAM data are called
+**"in-band OAM transit nodes"**.
+
+## Features supported in the current release
+VPP can function as in-band OAM encapsulating, transit and decapsulating node.
+In this version of VPP in-band OAM data is transported as options in an
+IPv6 hop-by-hop extension header. Hence in-band OAM can be enabled
+for IPv6 traffic.
+
+The following iOAM features are supported:
+
+- **In-band OAM Tracing** : In-band OAM supports multiple data records to be
+recorded in the packet as the packet traverses the network.
+These data records offer insights into the operational behavior of the network.
+The following information can be collected in the tracing
+data from the nodes a packet traverses:
+ - Node ID
+ - Ingress interface ID
+ - Egress interface ID
+ - Timestamp
+ - Pre-configured application data
+
+- **In-band OAM Proof of Transit (POT)**: Proof of transit iOAM data is
+added to every packet for verifying that a packet traverses a specific
+set of nodes.
+In-band OAM data is updated at every node that is enabled with iOAM
+proof of transit and is used to verify whether a packet traversed
+all the specified nodes. When the verifier receives each packet,
+it can validate whether the packet traversed the specified nodes.
+
+
+## Configuration
+Configuring iOAM involves:
+- Selecting the packets for which iOAM data must be inserted, updated or removed
+ - Selection of packets for iOAM data insertion on iOAM encapsulating node.
+ Selection of packets is done by 5-tuple based classification
+ - Selection of packets for updating iOAM data is implicitly done on the
+ presence of iOAM options in the packet
+ - Selection of packets for removing the iOAM data is done on 5-tuple
+ based classification
+- The kind of data to be collected
+ - Tracing data
+ - Proof of transit
+- Additional details for processing iOAM data to be collected
+ - For trace data - trace type, number of nodes to be recorded in the trace,
+ time stamp precision, etc.
+ - For POT data - configuration of POT profile required to process the POT data
+
+The CLI for configuring iOAM is explained here followed by detailed steps
+and examples to deploy iOAM on VPP as an encapsulating, transit or
+decapsulating iOAM node in the subsequent sub-sections.
+
+VPP iOAM configuration for enabling trace and POT is as follows:
+
+ set ioam rewrite trace-type <0x1f|0x7|0x9|0x11|0x19>
+ trace-elts <number of trace elements> trace-tsp <0|1|2|3>
+ node-id <node ID in hex> app-data <application data in hex> [pot]
+
+A description of each of the options of the CLI follows:
+- trace-type : An entry in the "Node data List" array of the trace option
+can have different formats, following the needs of the a deployment.
+For example: Some deployments might only be interested
+in recording the node identifiers, whereas others might be interested
+in recording node identifier and timestamp.
+The following types are currently supported:
+ - 0x1f : Node data to include hop limit (8 bits), node ID (24 bits),
+ ingress and egress interface IDs (16 bits each), timestamp (32 bits),
+ application data (32 bits)
+ - 0x7 : Node data to include hop limit (8 bits), node ID (24 bits),
+ ingress and egress interface IDs (16 bits each)
+ - 0x9 : Node data to include hop limit (8 bits), node ID (24 bits),
+ timestamp (32 bits)
+ - 0x11: Node data to include hop limit (8 bits), node ID (24 bits),
+ application data (32 bits)
+ - 0x19: Node data to include hop limit (8 bits), node ID (24 bits),
+ timestamp (32 bits), application data (32 bits)
+- trace-elts : Defines the length of the node data array in the trace option.
+- trace-tsp : Defines the timestamp precision to use with the enumerated value
+ for precision as follows:
+ - 0 : 32bits timestamp in seconds
+ - 1 : 32bits timestamp in milliseconds
+ - 2 : 32bits timestamp in microseconds
+ - 3 : 32bits timestamp in nanoseconds
+- node-id : Unique identifier for the node, included in the node ID
+ field of the node data in trace option.
+- app-data : The value configured here is included as is in
+application data field of node data in trace option.
+- pot : Enables POT option to be included in the iOAM options.
+
+### Trace configuration
+
+#### On in-band OAM encapsulating node
+ - **Configure classifier and apply ACL** to select packets for
+ iOAM data insertion
+ - Example to enable iOAM data insertion for all the packets
+ towards IPv6 address db06::06:
+
+ vpp# classify table miss-next node ip6-lookup mask l3 ip6 dst
+
+ vpp# classify session acl-hit-next node ip6-add-hop-by-hop
+ table-index 0 match l3 ip6 dst db06::06
+
+ vpp# set int input acl intfc GigabitEthernet0/0/0 ip6-table 0
+
+ - **Enable tracing** : Specify node ID, maximum number of nodes for which
+ trace data should be recorded, type of data to be included for recording,
+ optionally application data to be included
+ - Example to enable tracing with a maximum of 4 nodes recorded
+ and the data to be recorded to include - hop limit, node id,
+ ingress and egress interface IDs, timestamp (millisecond precision),
+ application data (0x1234):
+
+
+ vpp# set ioam rewrite trace-type 0x1f trace-elts 4 trace-tsp 1
+ node-id 0x1 app-data 0x1234
+
+
+
+#### On in-band OAM transit node
+- The transit node requires trace type, timestamp precision, node ID and
+optionally application data to be configured,
+to update its node data in the trace option.
+
+Example:
+
+ vpp# set ioam rewrite trace-type 0x1f trace-elts 4 trace-tsp 1
+ node-id 0x2 app-data 0x1234
+
+#### On the In-band OAM decapsulating node
+- The decapsulating node similar to encapsulating node requires
+**classification** of the packets to remove iOAM data from.
+ - Example to decapsulate iOAM data for packets towards
+ db06::06, configure classifier and enable it as an ACL as follows:
+
+
+ vpp# classify table miss-next node ip6-lookup mask l3 ip6 dst
+
+ vpp# classify session acl-hit-next node ip6-lookup table-index 0
+ match l3 ip6 dst db06::06 opaque-index 100
+
+ vpp# set int input acl intfc GigabitEthernet0/0/0 ip6-table 0
+
+
+- Decapsulating node requires trace type, timestamp precision,
+node ID and optionally application data to be configured,
+to update its node data in the trace option before it is decapsulated.
+
+Example:
+
+ vpp# set ioam rewrite trace-type 0x1f trace-elts 4
+ trace-tsp 1 node-id 0x3 app-data 0x1234
+
+
+### Proof of Transit configuration
+
+For details on proof-of-transit,
+see the IETF draft [iOAM-ietf-proof-of-transit].
+To enable Proof of Transit all the nodes that participate
+and hence are verified for transit need a proof of transit profile.
+A script to generate a proof of transit profile as per the mechanism
+described in [iOAM-ietf-proof-of-transit] will be available at [iOAM-Devnet].
+
+The Proof of transit mechanism implemented here is based on
+Shamir's Secret Sharing algorithm.
+The overall algorithm uses two polynomials
+POLY-1 and POLY-2. The degree of polynomials depends on number of nodes
+to be verified for transit.
+POLY-1 is secret and constant. Each node gets a point on POLY-1
+at setup-time and keeps it secret.
+POLY-2 is public, random and per packet.
+Each node is assigned a point on POLY-1 and POLY-2 with the same x index.
+Each node derives its point on POLY-2 each time a packet arrives at it.
+A node then contributes its points on POLY-1 and POLY-2 to construct
+POLY-3 (POLY-3 = POLY-1 + POLY-2) using lagrange extrapolation and
+forwards it towards the verifier by updating POT data in the packet.
+The verifier constructs POLY-3 from the accumulated value from all the nodes
+and its own points on POLY-1 and POLY-2 and verifies whether
+POLY-3 = POLY-1 + POLY-2. Only the verifier knows POLY-1.
+The solution leverages finite field arithmetic in a field of size "prime number"
+for reasons explained in description of Shamir's secret sharing algorithm.
+
+Here is an explanation of POT profile list and profile configuration CLI to
+realize the above mechanism.
+It is best to use the script provided at [iOAM-Devnet] to generate
+this configuration.
+- **Create POT profile** : set pot profile name <string> id [0-1]
+[validator-key 0xu64] prime-number 0xu64 secret_share 0xu64
+lpc 0xu64 polynomial2 0xu64 bits-in-random [0-64]
+ - name : Profile list name.
+ - id : Profile id, it can be 0 or 1.
+ A maximum of two profiles can be configured per profile list.
+ - validator-key : Secret key configured only on the
+ verifier/decapsulating node used to compare and verify proof of transit.
+ - prime-number : Prime number for finite field arithmetic as required by the
+ proof of transit mechanism.
+ - secret_share : Unique point for each node on the secret polynomial POLY-1.
+ - lpc : Lagrange Polynomial Constant(LPC) calculated per node based on
+ its point (x value used for evaluating the points on the polynomial)
+ on the polynomial used in lagrange extrapolation
+ for reconstructing polynomial (POLY-3).
+ - polynomial2 : Is the pre-evaluated value of the point on
+ 2nd polynomial(POLY-2). This is unique for each node.
+ It is pre-evaluated for all the coefficients of POLY-2 except
+ for the constant part of the polynomial that changes per packet
+ and is received as part of the POT data in the packet.
+ - bits-in-random : To control the size of the random number to be
+ generated. This number has to match the other numbers generated and used
+ in the profile as per the algorithm.
+
+- **Set a configured profile as active/in-use** :
+set pot profile-active name <string> ID [0-1]
+ - name : Name of the profile list to be used for computing
+ POT data per packet.
+ - ID : Identifier of the profile within the list to be used.
+
+#### On In-band OAM encapsulating node
+ - Configure the classifier and apply ACL to select packets for iOAM data insertion.
+ - Example to enable iOAM data insertion for all the packet towards
+ IPv6 address db06::06 -
+
+
+ vpp# classify table miss-next node ip6-lookup mask l3 ip6 dst
+
+ vpp# classify session acl-hit-next node
+ ip6-add-hop-by-hop table-index 0 match l3 ip6 dst db06::06
+
+ vpp# set int input acl intfc GigabitEthernet0/0/0 ip6-table 0
+
+
+ - Configure the proof of transit profile list with profiles.
+Each profile list referred to by a name can contain 2 profiles,
+only one is in use for updating proof of transit data at any time.
+ - Example profile list example with a profile generated from the
+ script to verify transit through 3 nodes is:
+
+
+ vpp# set pot profile name example id 0 prime-number 0x7fff0000fa884685
+ secret_share 0x6c22eff0f45ec56d lpc 0x7fff0000fa884682
+ polynomial2 0xffb543d4a9c bits-in-random 63
+
+ - Enable one of the profiles from the configured profile list as active
+ so that is will be used for calculating proof of transit
+
+Example enable profile ID 0 from profile list example configured above:
+
+
+ vpp# set pot profile-active name example ID 0
+
+
+ - Enable POT option to be inserted
+
+
+ vpp# set ioam rewrite pot
+
+
+#### On in-band OAM transit node
+ - Configure the proof of transit profile list with profiles for transit node.
+Example:
+
+
+ vpp# set pot profile name example id 0 prime-number 0x7fff0000fa884685
+ secret_share 0x564cdbdec4eb625d lpc 0x1
+ polynomial2 0x23f3a227186a bits-in-random 63
+
+#### On in-band OAM decapsulating node / verifier
+- The decapsulating node, similar to the encapsulating node requires
+classification of the packets to remove iOAM data from.
+ - Example to decapsulate iOAM data for packets towards db06::06
+ configure classifier and enable it as an ACL as follows:
+
+
+ vpp# classify table miss-next node ip6-lookup mask l3 ip6 dst
+
+ vpp# classify session acl-hit-next node ip6-lookup table-index 0
+ match l3 ip6 dst db06::06 opaque-index 100
+
+ vpp# set int input acl intfc GigabitEthernet0/0/0 ip6-table 0
+
+- To update and verify the proof of transit, POT profile list should be configured.
+ - Example POT profile list configured as follows:
+
+ vpp# set pot profile name example id 0 validate-key 0x7fff0000fa88465d
+ prime-number 0x7fff0000fa884685 secret_share 0x7a08fbfc5b93116d lpc 0x3
+ polynomial2 0x3ff738597ce bits-in-random 63
+
+## Operational data
+
+Following CLIs are available to check iOAM operation:
+- To check iOAM configuration that are effective use "show ioam summary"
+
+Example:
+
+ vpp# show ioam summary
+ REWRITE FLOW CONFIGS - Not configured
+ HOP BY HOP OPTIONS - TRACE CONFIG -
+ Trace Type : 0x1f (31)
+ Trace timestamp precision : 1 (Milliseconds)
+ Num of trace nodes : 4
+ Node-id : 0x2 (2)
+ App Data : 0x1234 (4660)
+ POT OPTION - 1 (Enabled)
+ Try 'show ioam pot and show pot profile' for more information
+
+- To find statistics about packets for which iOAM options were
+added (encapsulating node) and removed (decapsulating node) execute
+*show errors*
+
+Example on encapsulating node:
+
+
+ vpp# show error
+ Count Node Reason
+ 1208804706 ip6-inacl input ACL hits
+ 1208804706 ip6-add-hop-by-hop Pkts w/ added ip6 hop-by-hop options
+
+Example on decapsulating node:
+
+ vpp# show error
+ Count Node Reason
+ 69508569 ip6-inacl input ACL hits
+ 69508569 ip6-pop-hop-by-hop Pkts w/ removed ip6 hop-by-hop options
+
+- To check the POT profiles use "show pot profile"
+
+Example:
+
+ vpp# show pot profile
+ Profile list in use : example
+ POT Profile at index: 0
+ ID : 0
+ Validator : False (0)
+ Secret share : 0x564cdbdec4eb625d (6218586935324795485)
+ Prime number : 0x7fff0000fa884685 (9223090566081300101)
+ 2nd polynomial(eval) : 0x23f3a227186a (39529304496234)
+ LPC : 0x1 (1)
+ Bit mask : 0x7fffffffffffffff (9223372036854775807)
+ Profile index in use: 0
+ Pkts passed : 0x36 (54)
+
+- To get statistics of POT for packets use "show ioam pot"
+
+Example at encapsulating or transit node:
+
+ vpp# show ioam pot
+ Pkts with ip6 hop-by-hop POT options - 54
+ Pkts with ip6 hop-by-hop POT options but no profile set - 0
+ Pkts with POT in Policy - 0
+ Pkts with POT out of Policy - 0
+
+
+Example at decapsulating/verification node:
+
+
+ vpp# show ioam pot
+ Pkts with ip6 hop-by-hop POT options - 54
+ Pkts with ip6 hop-by-hop POT options but no profile set - 0
+ Pkts with POT in Policy - 54
+ Pkts with POT out of Policy - 0
+
+- Tracing - enable trace of IPv6 packets to view the data inserted and
+collected.
+
+Example when the nodes are receiving data over a DPDK interface:
+Enable tracing using "trace add dpdk-input 20" and
+execute "show trace" to view the iOAM data collected:
+
+
+ vpp# trace add dpdk-input 20
+
+ vpp# show trace
+
+ ------------------- Start of thread 0 vpp_main -------------------
+
+ Packet 1
+
+ 00:00:19:294697: dpdk-input
+ GigabitEthernetb/0/0 rx queue 0
+ buffer 0x10e6b: current data 0, length 214, free-list 0, totlen-nifb 0, trace 0x0
+ PKT MBUF: port 0, nb_segs 1, pkt_len 214
+ buf_len 2176, data_len 214, ol_flags 0x0, data_off 128, phys_addr 0xe9a35a00
+ packet_type 0x0
+ IP6: 00:50:56:9c:df:72 -> 00:50:56:9c:be:55
+ IP6_HOP_BY_HOP_OPTIONS: db05::2 -> db06::6
+ tos 0x00, flow label 0x0, hop limit 63, payload length 160
+ 00:00:19:294737: ethernet-input
+ IP6: 00:50:56:9c:df:72 -> 00:50:56:9c:be:55
+ 00:00:19:294753: ip6-input
+ IP6_HOP_BY_HOP_OPTIONS: db05::2 -> db06::6
+ tos 0x00, flow label 0x0, hop limit 63, payload length 160
+ 00:00:19:294757: ip6-lookup
+ fib 0 adj-idx 15 : indirect via db05::2 flow hash: 0x00000000
+ IP6_HOP_BY_HOP_OPTIONS: db05::2 -> db06::6
+ tos 0x00, flow label 0x0, hop limit 63, payload length 160
+ 00:00:19:294802: ip6-hop-by-hop
+ IP6_HOP_BY_HOP: next index 5 len 96 traced 96 Trace Type 0x1f , 1 elts left
+ [0] ttl 0x0 node ID 0x0 ingress 0x0 egress 0x0 ts 0x0
+ app 0x0
+ [1] ttl 0x3e node ID 0x3 ingress 0x1 egress 0x2 ts 0xb68c2213
+ app 0x1234
+ [2] ttl 0x3f node ID 0x2 ingress 0x1 egress 0x2 ts 0xb68c2204
+ app 0x1234
+ [3] ttl 0x40 node ID 0x1 ingress 0x5 egress 0x6 ts 0xb68c2200
+ app 0x1234
+ POT opt present
+ random = 0x577a916946071950, Cumulative = 0x10b46e78a35a392d, Index = 0x0
+ 00:00:19:294810: ip6-rewrite
+ tx_sw_if_index 1 adj-idx 14 : GigabitEthernetb/0/0
+ IP6: 00:50:56:9c:be:55 -> 00:50:56:9c:df:72 flow hash: 0x00000000
+ IP6: 00:50:56:9c:be:55 -> 00:50:56:9c:df:72
+ IP6_HOP_BY_HOP_OPTIONS: db05::2 -> db06::6
+ tos 0x00, flow label 0x0, hop limit 62, payload length 160
+ 00:00:19:294814: GigabitEthernetb/0/0-output
+ GigabitEthernetb/0/0
+ IP6: 00:50:56:9c:be:55 -> 00:50:56:9c:df:72
+ IP6_HOP_BY_HOP_OPTIONS: db05::2 -> db06::6
+ tos 0x00, flow label 0x0, hop limit 62, payload length 160
+ 00:00:19:294820: GigabitEthernetb/0/0-tx
+ GigabitEthernetb/0/0 tx queue 0
+ buffer 0x10e6b: current data 0, length 214, free-list 0, totlen-nifb 0, trace 0x0
+ IP6: 00:50:56:9c:be:55 -> 00:50:56:9c:df:72
+
+ IP6_HOP_BY_HOP_OPTIONS: db05::2 -> db06::6
+
+ tos 0x00, flow label 0x0, hop limit 62, payload length 160
+
+
+[iOAM-Devnet]: <https://github.com/ciscodevnet/iOAM>
+[iOAM-ietf-requirements]:<https://tools.ietf.org/html/draft-brockners-inband-oam-requirements-01>
+[iOAM-ietf-transport]:<https://tools.ietf.org/html/draft-brockners-inband-oam-transport-01>
+[iOAM-ietf-data]:<https://tools.ietf.org/html/draft-brockners-inband-oam-data-01>
+[iOAM-ietf-proof-of-transit]:<https://tools.ietf.org/html/draft-brockners-proof-of-transit-01>
diff --git a/src/plugins/ioam/lib-pot/math64.h b/src/plugins/ioam/lib-pot/math64.h
new file mode 100644
index 00000000000..4c608a37de4
--- /dev/null
+++ b/src/plugins/ioam/lib-pot/math64.h
@@ -0,0 +1,159 @@
+/*
+ * math64.h provides the 64 bit unsigned integer add, multiply followed by modulo operation
+ * The linux/math64.h provides divide and multiply 64 bit integers but:
+ * 1. multiply: mul_u64_u64_shr - only returns 64 bits of the result and has to be called
+ * twice to get the complete 128 bits of the result.
+ * 2. Modulo operation of the result of addition and multiplication of u64 that may result
+ * in integers > 64 bits is not supported
+ * Hence this header to combine add/multiply followed by modulo of u64 integrers
+ * always resulting in u64.
+ *
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef include_vnet_math64_h
+#define include_vnet_math64_h
+#include <stdint.h>
+
+/*
+ * multiplies and returns result in hi and lo
+ */
+static inline void mul64by64(u64 a, u64 b, u64 * hi, u64 * lo)
+{
+ u64 a_lo = (u64) (uint32_t) a;
+ u64 a_hi = a >> 32;
+ u64 b_lo = (u64) (u32) b;
+ u64 b_hi = b >> 32;
+
+ u64 p0 = a_lo * b_lo;
+ u64 p1 = a_lo * b_hi;
+ u64 p2 = a_hi * b_lo;
+ u64 p3 = a_hi * b_hi;
+
+ u32 cy = (u32) (((p0 >> 32) + (u32) p1 + (u32) p2) >> 32);
+
+ *lo = p0 + (p1 << 32) + (p2 << 32);
+ *hi = p3 + (p1 >> 32) + (p2 >> 32) + cy;
+ return;
+}
+
+#define TWO64 18446744073709551616.0
+
+static inline u64 mod128by64(u64 x, u64 y, u64 m, double di)
+{
+ u64 q1, q2, q;
+ u64 p1, p0;
+ double dq;
+
+ /* calculate quotient first pass 53 bits */
+ dq = (TWO64 * (double)x + (double)y) * di;
+
+ if (dq >= TWO64)
+ q1 = 0xfffffffffffff800L;
+ else
+ q1 = dq;
+
+ /* q1 * m to compare the product to the dividend. */
+ mul64by64(q1, m, &p1, &p0);
+
+ /* Adjust quotient. is it > actual result: */
+ if (x < p1 || (x == p1 && y < p0))
+ {
+ /* q1 > quotient. calculate abs remainder */
+ x = p1 - (x + (p0 < y));
+ y = p0 - y;
+
+ /* use the remainder as new dividend to adjust quotient */
+ q2 = (u64) ((TWO64 * (double)x + (double)y) * di);
+ mul64by64(q2, m, &p1, &p0);
+
+ q = q1 - q2;
+ if (x < p1 || (x == p1 && y <= p0))
+ {
+ y = p0 - y;
+ }
+ else
+ {
+ y = p0 - y;
+ y += m;
+ q--;
+ }
+ }
+ else
+ {
+ x = x - (p1 + (y < p0));
+ y = y - p0;
+
+ q2 = (u64) ((TWO64 * (double)x + (double)y) * di);
+ mul64by64(q2, m, &p1, &p0);
+
+ q = q1 + q2;
+ if (x < p1 || (x == p1 && y < p0))
+ {
+ y = y - p0;
+ y += m;
+ q--;
+ }
+ else
+ {
+ y = y - p0;
+ if (y >= m)
+ {
+ y -= m;
+ q++;
+ }
+ }
+ }
+
+ return y;
+}
+
+/*
+ * returns a % p
+ */
+static inline u64 mod64by64(u64 a, u64 p, u64 primeinv)
+{
+ return (mod128by64(0, a, p, primeinv));
+}
+
+static inline void add64(u64 a, u64 b, u64 * whi, u64 * wlo)
+{
+ *wlo = a + b;
+ if (*wlo < a)
+ *whi = 1;
+
+}
+
+/*
+ * returns (a + b)%p
+ */
+static inline u64 add64_mod(u64 a, u64 b, u64 p, double pi)
+{
+ u64 shi = 0, slo = 0;
+
+ add64(a, b, &shi, &slo);
+ return (mod128by64(shi, slo, p, pi));
+}
+
+/*
+ * returns (ab) % p
+ */
+static inline u64 mul64_mod(u64 a, u64 b, u64 p, double pi)
+{
+ u64 phi = 0, plo = 0;
+
+ mul64by64(a, b, &phi, &plo);
+ return (mod128by64(phi, plo, p, pi));
+}
+
+#endif
diff --git a/src/plugins/ioam/lib-pot/pot.api b/src/plugins/ioam/lib-pot/pot.api
new file mode 100644
index 00000000000..fa2fc126b7e
--- /dev/null
+++ b/src/plugins/ioam/lib-pot/pot.api
@@ -0,0 +1,133 @@
+/* Hey Emacs use -*- mode: C -*- */
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+/** \brief Proof of Transit(POT): Set POT profile
+ @param id - id of the profile
+ @param validator - True/False to indicate if this is verifier
+ @param secret_key - Verification key
+ @param secret_share - Share of the 1st polynomial
+ @param prime - Prime number used for modulo operation
+ @param max_bits - Max bits to be used for Random number generation
+ @param lpc - Lagrange basis polynomial
+ @param polynomial_public - pre-evaluated public polynomial
+ @param list_name_len - length of the name of this profile list
+ @param list_name - name of this profile list
+*/
+define pot_profile_add {
+ u32 client_index;
+ u32 context;
+ u8 id;
+ u8 validator;
+ u64 secret_key;
+ u64 secret_share;
+ u64 prime;
+ u8 max_bits;
+ u64 lpc;
+ u64 polynomial_public;
+ u8 list_name_len;
+ u8 list_name[0];
+};
+
+/** \brief Proof of Transit profile add / del response
+ @param context - sender context, to match reply w/ request
+ @param retval - return value for request
+*/
+define pot_profile_add_reply {
+ u32 context;
+ i32 retval;
+};
+
+
+/** \brief Proof of Transit(POT): Activate POT profile in the list
+ @param id - id of the profile
+ @param list_name_len - length of the name of this profile list
+ @param list_name - name of this profile list
+*/
+define pot_profile_activate {
+ u32 client_index;
+ u32 context;
+ u8 id;
+ u8 list_name_len;
+ u8 list_name[0];
+};
+
+/** \brief Proof of Transit profile activate response
+ @param context - sender context, to match reply w/ request
+ @param retval - return value for request
+*/
+define pot_profile_activate_reply {
+ u32 context;
+ i32 retval;
+};
+
+/** \brief Delete POT Profile
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param list_name_len - length of the name of the profile list
+ @param list_name - name of profile list to delete
+*/
+define pot_profile_del {
+ u32 client_index;
+ u32 context;
+ u8 list_name_len;
+ u8 list_name[0];
+};
+
+/** \brief Proof of Transit profile add / del response
+ @param context - sender context, to match reply w/ request
+ @param retval - return value for request
+*/
+define pot_profile_del_reply {
+ u32 context;
+ i32 retval;
+};
+
+/** \brief Show POT Profiles
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param id - id of the profile
+*/
+define pot_profile_show_config_dump {
+ u32 client_index;
+ u32 context;
+ u8 id;
+};
+
+/** \brief Show POT profile reply
+ @param id - id of the profile
+ @param validator - True/False to indicate if this is verifier
+ @param secret_key - Verification key
+ @param secret_share - Share of the 1st polynomial
+ @param prime - Prime number used for modulo operation
+ @param max_bits - Max bits to be used for Random number generation
+ @param lpc - Lagrange basis polynomial
+ @param polynomial_public - pre-evaluated public polynomial
+ @param list_name_len - length of the name of this profile list
+ @param list_name - name of this profile list
+*/
+define pot_profile_show_config_details {
+ u32 context;
+ i32 retval;
+ u8 id;
+ u8 validator;
+ u64 secret_key;
+ u64 secret_share;
+ u64 prime;
+ u64 bit_mask;
+ u64 lpc;
+ u64 polynomial_public;
+};
diff --git a/src/plugins/ioam/lib-pot/pot_all_api_h.h b/src/plugins/ioam/lib-pot/pot_all_api_h.h
new file mode 100644
index 00000000000..63967c45444
--- /dev/null
+++ b/src/plugins/ioam/lib-pot/pot_all_api_h.h
@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/* Include the generated file, see BUILT_SOURCES in Makefile.am */
+#include <ioam/lib-pot/pot.api.h>
diff --git a/src/plugins/ioam/lib-pot/pot_api.c b/src/plugins/ioam/lib-pot/pot_api.c
new file mode 100644
index 00000000000..d3af7b4036a
--- /dev/null
+++ b/src/plugins/ioam/lib-pot/pot_api.c
@@ -0,0 +1,292 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
+ *------------------------------------------------------------------
+ * pot_api.c - Proof of Transit related APIs to create
+ * and maintain profiles
+ *------------------------------------------------------------------
+ */
+
+#include <vnet/vnet.h>
+#include <vnet/plugin/plugin.h>
+#include <ioam/lib-pot/pot_util.h>
+
+#include <vlibapi/api.h>
+#include <vlibmemory/api.h>
+#include <vlibsocket/api.h>
+
+/* define message IDs */
+#include <ioam/lib-pot/pot_msg_enum.h>
+
+/* define message structures */
+#define vl_typedefs
+#include <ioam/lib-pot/pot_all_api_h.h>
+#undef vl_typedefs
+
+/* define generated endian-swappers */
+#define vl_endianfun
+#include <ioam/lib-pot/pot_all_api_h.h>
+#undef vl_endianfun
+
+/* instantiate all the print functions we know about */
+#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
+#define vl_printfun
+#include <ioam/lib-pot/pot_all_api_h.h>
+#undef vl_printfun
+
+/* Get the API version number */
+#define vl_api_version(n,v) static u32 api_version=(v);
+#include <ioam/lib-pot/pot_all_api_h.h>
+#undef vl_api_version
+
+/*
+ * A handy macro to set up a message reply.
+ * Assumes that the following variables are available:
+ * mp - pointer to request message
+ * rmp - pointer to reply message type
+ * rv - return value
+ */
+
+#define REPLY_MACRO(t) \
+do { \
+ unix_shared_memory_queue_t * q = \
+ vl_api_client_index_to_input_queue (mp->client_index); \
+ if (!q) \
+ return; \
+ \
+ rmp = vl_msg_api_alloc (sizeof (*rmp)); \
+ rmp->_vl_msg_id = ntohs((t)+sm->msg_id_base); \
+ rmp->context = mp->context; \
+ rmp->retval = ntohl(rv); \
+ \
+ vl_msg_api_send_shmem (q, (u8 *)&rmp); \
+} while(0);
+
+#define REPLY_MACRO2(t, body) \
+do { \
+ unix_shared_memory_queue_t * q; \
+ rv = vl_msg_api_pd_handler (mp, rv); \
+ q = vl_api_client_index_to_input_queue (mp->client_index); \
+ if (!q) \
+ return; \
+ \
+ rmp = vl_msg_api_alloc (sizeof (*rmp)); \
+ rmp->_vl_msg_id = ntohs((t)+sm->msg_id_base); \
+ rmp->context = mp->context; \
+ rmp->retval = ntohl(rv); \
+ do {body;} while (0); \
+ vl_msg_api_send_shmem (q, (u8 *)&rmp); \
+} while(0);
+
+/* List of message types that this plugin understands */
+
+#define foreach_pot_plugin_api_msg \
+_(POT_PROFILE_ADD, pot_profile_add) \
+_(POT_PROFILE_ACTIVATE, pot_profile_activate) \
+_(POT_PROFILE_DEL, pot_profile_del) \
+_(POT_PROFILE_SHOW_CONFIG_DUMP, pot_profile_show_config_dump) \
+
+static void vl_api_pot_profile_add_t_handler
+(vl_api_pot_profile_add_t *mp)
+{
+ pot_main_t * sm = &pot_main;
+ int rv = 0;
+ vl_api_pot_profile_add_reply_t * rmp;
+ u8 id;
+ pot_profile *profile = NULL;
+ u8 *name = 0;
+
+ if (mp->list_name_len)
+ name = format(0, "%s", mp->list_name);
+
+ pot_profile_list_init(name);
+ id = mp->id;
+ profile = pot_profile_find(id);
+ if (profile) {
+ rv = pot_profile_create(profile,
+ clib_net_to_host_u64(mp->prime),
+ clib_net_to_host_u64(mp->polynomial_public),
+ clib_net_to_host_u64(mp->lpc),
+ clib_net_to_host_u64(mp->secret_share));
+ if (rv != 0)
+ goto ERROROUT;
+ if (1 == mp->validator)
+ (void)pot_set_validator(profile, clib_net_to_host_u64(mp->secret_key));
+ (void)pot_profile_set_bit_mask(profile, mp->max_bits);
+ } else {
+ rv = -3;
+ }
+ ERROROUT:
+ vec_free(name);
+ REPLY_MACRO(VL_API_POT_PROFILE_ADD_REPLY);
+}
+
+static void send_pot_profile_details(vl_api_pot_profile_show_config_dump_t *mp, u8 id)
+{
+ vl_api_pot_profile_show_config_details_t * rmp;
+ pot_main_t * sm = &pot_main;
+ pot_profile *profile = pot_profile_find(id);
+ int rv = 0;
+ if(profile){
+ REPLY_MACRO2(VL_API_POT_PROFILE_SHOW_CONFIG_DETAILS,
+ rmp->id=id;
+ rmp->validator=profile->validator;
+ rmp->secret_key=clib_host_to_net_u64(profile->secret_key);
+ rmp->secret_share=clib_host_to_net_u64(profile->secret_share);
+ rmp->prime=clib_host_to_net_u64(profile->prime);
+ rmp->bit_mask=clib_host_to_net_u64(profile->bit_mask);
+ rmp->lpc=clib_host_to_net_u64(profile->lpc);
+ rmp->polynomial_public=clib_host_to_net_u64(profile->poly_pre_eval);
+ );
+ }
+ else{
+ REPLY_MACRO2(VL_API_POT_PROFILE_SHOW_CONFIG_DETAILS,
+ rmp->id=id;
+ rmp->validator=0;
+ rmp->secret_key=0;
+ rmp->secret_share=0;
+ rmp->prime=0;
+ rmp->bit_mask=0;
+ rmp->lpc=0;
+ rmp->polynomial_public=0;
+ );
+ }
+}
+
+static void vl_api_pot_profile_show_config_dump_t_handler
+(vl_api_pot_profile_show_config_dump_t *mp)
+{
+ u8 id = mp->id;
+ u8 dump_call_id = ~0;
+ if(dump_call_id==id){
+ for(id=0;id<MAX_POT_PROFILES;id++)
+ send_pot_profile_details(mp,id);
+ }
+ else
+ send_pot_profile_details(mp,id);
+}
+
+static void vl_api_pot_profile_activate_t_handler
+(vl_api_pot_profile_activate_t *mp)
+{
+ pot_main_t * sm = &pot_main;
+ int rv = 0;
+ vl_api_pot_profile_add_reply_t * rmp;
+ u8 id;
+ u8 *name = NULL;
+
+ if (mp->list_name_len)
+ name = format(0, "%s", mp->list_name);
+ if (!pot_profile_list_is_enabled(name)) {
+ rv = -1;
+ } else {
+ id = mp->id;
+ rv = pot_profile_set_active(id);
+ }
+
+ vec_free(name);
+ REPLY_MACRO(VL_API_POT_PROFILE_ACTIVATE_REPLY);
+}
+
+
+static void vl_api_pot_profile_del_t_handler
+(vl_api_pot_profile_del_t *mp)
+{
+ pot_main_t * sm = &pot_main;
+ int rv = 0;
+ vl_api_pot_profile_del_reply_t * rmp;
+
+ clear_pot_profiles();
+
+ REPLY_MACRO(VL_API_POT_PROFILE_DEL_REPLY);
+}
+
+
+/*
+ * This routine exists to convince the vlib plugin framework that
+ * we haven't accidentally copied a random .dll into the plugin directory.
+ *
+ * Also collects global variable pointers passed from the vpp engine
+ */
+
+clib_error_t *
+vlib_plugin_register (vlib_main_t * vm, vnet_plugin_handoff_t * h,
+ int from_early_init)
+{
+ pot_main_t * sm = &pot_main;
+ clib_error_t * error = 0;
+
+ sm->vlib_main = vm;
+ sm->vnet_main = h->vnet_main;
+ return error;
+}
+
+/* Set up the API message handling tables */
+static clib_error_t *
+pot_plugin_api_hookup (vlib_main_t *vm)
+{
+ pot_main_t * sm = &pot_main;
+#define _(N,n) \
+ vl_msg_api_set_handlers((VL_API_##N + sm->msg_id_base), \
+ #n, \
+ vl_api_##n##_t_handler, \
+ vl_noop_handler, \
+ vl_api_##n##_t_endian, \
+ vl_api_##n##_t_print, \
+ sizeof(vl_api_##n##_t), 1);
+ foreach_pot_plugin_api_msg;
+#undef _
+
+ return 0;
+}
+
+#define vl_msg_name_crc_list
+#include <ioam/lib-pot/pot_all_api_h.h>
+#undef vl_msg_name_crc_list
+
+static void
+setup_message_id_table (pot_main_t * sm, api_main_t * am)
+{
+#define _(id,n,crc) \
+ vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id + sm->msg_id_base);
+ foreach_vl_msg_name_crc_pot;
+#undef _
+}
+
+static clib_error_t * pot_init (vlib_main_t * vm)
+{
+ pot_main_t * sm = &pot_main;
+ clib_error_t * error = 0;
+ u8 * name;
+
+ bzero(sm, sizeof(pot_main));
+ (void)pot_util_init();
+ name = format (0, "ioam_pot_%08x%c", api_version, 0);
+
+ /* Ask for a correctly-sized block of API message decode slots */
+ sm->msg_id_base = vl_msg_api_get_msg_ids
+ ((char *) name, VL_MSG_FIRST_AVAILABLE);
+
+ error = pot_plugin_api_hookup (vm);
+
+ /* Add our API messages to the global name_crc hash table */
+ setup_message_id_table (sm, &api_main);
+
+ vec_free(name);
+
+ return error;
+}
+
+VLIB_INIT_FUNCTION (pot_init);
diff --git a/src/plugins/ioam/lib-pot/pot_msg_enum.h b/src/plugins/ioam/lib-pot/pot_msg_enum.h
new file mode 100644
index 00000000000..a4a88bed20f
--- /dev/null
+++ b/src/plugins/ioam/lib-pot/pot_msg_enum.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef included_pot_msg_enum_h
+#define included_pot_msg_enum_h
+
+#include <vppinfra/byte_order.h>
+
+#define vl_msg_id(n,h) n,
+typedef enum {
+#include <ioam/lib-pot/pot_all_api_h.h>
+ /* We'll want to know how many messages IDs we need... */
+ VL_MSG_FIRST_AVAILABLE,
+} vl_msg_id_t;
+#undef vl_msg_id
+
+#endif /* included_pot_msg_enum_h */
diff --git a/src/plugins/ioam/lib-pot/pot_test.c b/src/plugins/ioam/lib-pot/pot_test.c
new file mode 100644
index 00000000000..2e87023896e
--- /dev/null
+++ b/src/plugins/ioam/lib-pot/pot_test.c
@@ -0,0 +1,365 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
+ *------------------------------------------------------------------
+ * pot_test.c - test harness for pot plugin
+ *------------------------------------------------------------------
+ */
+
+#include <vat/vat.h>
+#include <vlibapi/api.h>
+#include <vlibmemory/api.h>
+#include <vlibsocket/api.h>
+#include <vppinfra/error.h>
+
+/* Declare message IDs */
+#include <ioam/lib-pot/pot_msg_enum.h>
+
+/* define message structures */
+#define vl_typedefs
+#include <ioam/lib-pot/pot_all_api_h.h>
+#undef vl_typedefs
+
+/* declare message handlers for each api */
+
+#define vl_endianfun /* define message structures */
+#include <ioam/lib-pot/pot_all_api_h.h>
+#undef vl_endianfun
+
+/* instantiate all the print functions we know about */
+#define vl_print(handle, ...)
+#define vl_printfun
+#include <ioam/lib-pot/pot_all_api_h.h>
+#undef vl_printfun
+
+/* Get the API version number. */
+#define vl_api_version(n,v) static u32 api_version=(v);
+#include <ioam/lib-pot/pot_all_api_h.h>
+#undef vl_api_version
+
+
+typedef struct {
+ /* API message ID base */
+ u16 msg_id_base;
+ vat_main_t *vat_main;
+} pot_test_main_t;
+
+pot_test_main_t pot_test_main;
+
+#define foreach_standard_reply_retval_handler \
+_(pot_profile_add_reply) \
+_(pot_profile_activate_reply) \
+_(pot_profile_del_reply)
+
+#define foreach_custom_reply_retval_handler \
+_(pot_profile_show_config_details, \
+ errmsg(" ID:%d\n",mp->id); \
+ errmsg(" Validator:%d\n",mp->validator); \
+ errmsg(" secret_key:%Lx\n",clib_net_to_host_u64(mp->secret_key)); \
+ errmsg(" secret_share:%Lx\n",clib_net_to_host_u64(mp->secret_share)); \
+ errmsg(" prime:%Lx\n",clib_net_to_host_u64(mp->prime)); \
+ errmsg(" bitmask:%Lx\n",clib_net_to_host_u64(mp->bit_mask)); \
+ errmsg(" lpc:%Lx\n",clib_net_to_host_u64(mp->lpc)); \
+ errmsg(" public poly:%Lx\n",clib_net_to_host_u64(mp->polynomial_public)); \
+ )
+
+#define _(n) \
+ static void vl_api_##n##_t_handler \
+ (vl_api_##n##_t * mp) \
+ { \
+ vat_main_t * vam = pot_test_main.vat_main; \
+ i32 retval = ntohl(mp->retval); \
+ if (vam->async_mode) { \
+ vam->async_errors += (retval < 0); \
+ } else { \
+ vam->retval = retval; \
+ vam->result_ready = 1; \
+ } \
+ }
+foreach_standard_reply_retval_handler;
+#undef _
+
+#define _(n,body) \
+ static void vl_api_##n##_t_handler \
+ (vl_api_##n##_t * mp) \
+ { \
+ vat_main_t * vam = pot_test_main.vat_main; \
+ i32 retval = ntohl(mp->retval); \
+ if (vam->async_mode) { \
+ vam->async_errors += (retval < 0); \
+ } else { \
+ vam->retval = retval; \
+ vam->result_ready = 1; \
+ } \
+ do{body;}while(0); \
+ }
+foreach_custom_reply_retval_handler;
+#undef _
+
+/*
+ * Table of message reply handlers, must include boilerplate handlers
+ * we just generated
+ */
+#define foreach_vpe_api_reply_msg \
+_(POT_PROFILE_ADD_REPLY, pot_profile_add_reply) \
+_(POT_PROFILE_ACTIVATE_REPLY, pot_profile_activate_reply) \
+_(POT_PROFILE_DEL_REPLY, pot_profile_del_reply) \
+_(POT_PROFILE_SHOW_CONFIG_DETAILS, pot_profile_show_config_details)
+
+
+/* M: construct, but don't yet send a message */
+
+#define M(T,t) \
+do { \
+ vam->result_ready = 0; \
+ mp = vl_msg_api_alloc(sizeof(*mp)); \
+ memset (mp, 0, sizeof (*mp)); \
+ mp->_vl_msg_id = ntohs (VL_API_##T + sm->msg_id_base); \
+ mp->client_index = vam->my_client_index; \
+} while(0);
+
+#define M2(T,t,n) \
+do { \
+ vam->result_ready = 0; \
+ mp = vl_msg_api_alloc(sizeof(*mp)+(n)); \
+ memset (mp, 0, sizeof (*mp)); \
+ mp->_vl_msg_id = ntohs (VL_API_##T + sm->msg_id_base); \
+ mp->client_index = vam->my_client_index; \
+} while(0);
+
+/* S: send a message */
+#define S (vl_msg_api_send_shmem (vam->vl_input_queue, (u8 *)&mp))
+
+/* W: wait for results, with timeout */
+#define W \
+do { \
+ timeout = vat_time_now (vam) + 1.0; \
+ \
+ while (vat_time_now (vam) < timeout) { \
+ if (vam->result_ready == 1) { \
+ return (vam->retval); \
+ } \
+ } \
+ return -99; \
+} while(0);
+
+
+static int api_pot_profile_add (vat_main_t *vam)
+{
+#define MAX_BITS 64
+ pot_test_main_t * sm = &pot_test_main;
+ unformat_input_t *input = vam->input;
+ vl_api_pot_profile_add_t *mp;
+ u8 *name = NULL;
+ u64 prime = 0;
+ u64 secret_share = 0;
+ u64 secret_key = 0;
+ u32 bits = MAX_BITS;
+ u64 lpc = 0, poly2 = 0;
+ f64 timeout;
+ u8 id = 0;
+ int rv = 0;
+
+ while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat(input, "name %s", &name))
+ ;
+ else if(unformat(input, "id %d", &id))
+ ;
+ else if (unformat(input, "validator-key 0x%Lx", &secret_key))
+ ;
+ else if (unformat(input, "prime-number 0x%Lx", &prime))
+ ;
+ else if (unformat(input, "secret-share 0x%Lx", &secret_share))
+ ;
+ else if (unformat(input, "polynomial-public 0x%Lx", &poly2))
+ ;
+ else if (unformat(input, "lpc 0x%Lx", &lpc))
+ ;
+ else if (unformat(input, "bits-in-random %u", &bits))
+ {
+ if (bits > MAX_BITS)
+ bits = MAX_BITS;
+ }
+ else
+ break;
+ }
+
+ if (!name)
+ {
+ errmsg ("name required\n");
+ rv = -99;
+ goto OUT;
+ }
+
+ M2(POT_PROFILE_ADD, pot_profile_add, vec_len(name));
+
+ mp->list_name_len = vec_len(name);
+ clib_memcpy(mp->list_name, name, mp->list_name_len);
+ mp->secret_share = clib_host_to_net_u64(secret_share);
+ mp->polynomial_public = clib_host_to_net_u64(poly2);
+ mp->lpc = clib_host_to_net_u64(lpc);
+ mp->prime = clib_host_to_net_u64(prime);
+ if (secret_key != 0)
+ {
+ mp->secret_key = clib_host_to_net_u64(secret_key);
+ mp->validator = 1;
+ }
+ else
+ {
+ mp->validator = 0;
+ }
+ mp->id = id;
+ mp->max_bits = bits;
+
+ S; W;
+
+OUT:
+ vec_free(name);
+ return(rv);
+}
+
+static int api_pot_profile_activate (vat_main_t *vam)
+{
+#define MAX_BITS 64
+ pot_test_main_t * sm = &pot_test_main;
+ unformat_input_t *input = vam->input;
+ vl_api_pot_profile_activate_t *mp;
+ u8 *name = NULL;
+ u8 id = 0;
+ int rv = 0;
+ f64 timeout;
+
+ while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat(input, "name %s", &name))
+ ;
+ else if(unformat(input, "id %d", &id))
+ ;
+ else
+ break;
+ }
+
+ if (!name)
+ {
+ errmsg ("name required\n");
+ rv = -99;
+ goto OUT;
+ }
+
+ M2(POT_PROFILE_ACTIVATE, pot_profile_activate, vec_len(name));
+
+ mp->list_name_len = vec_len(name);
+ clib_memcpy(mp->list_name, name, mp->list_name_len);
+ mp->id = id;
+
+ S; W;
+
+OUT:
+ vec_free(name);
+ return(rv);
+}
+
+
+static int api_pot_profile_del (vat_main_t *vam)
+{
+ pot_test_main_t * sm = &pot_test_main;
+ vl_api_pot_profile_del_t *mp;
+ f64 timeout;
+
+ M(POT_PROFILE_DEL, pot_profile_del);
+ mp->list_name_len = 0;
+ S; W;
+ return 0;
+}
+
+static int api_pot_profile_show_config_dump (vat_main_t *vam)
+{
+ pot_test_main_t * sm = &pot_test_main;
+ unformat_input_t *input = vam->input;
+ vl_api_pot_profile_show_config_dump_t *mp;
+ f64 timeout;
+ u8 id = 0;
+
+ while(unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
+ {
+ if(unformat(input,"id %d",&id));
+ else
+ break;
+ }
+ M(POT_PROFILE_SHOW_CONFIG_DUMP, pot_profile_show_config_dump);
+
+ mp->id = id;
+
+ S; W;
+ return 0;
+}
+
+/*
+ * List of messages that the api test plugin sends,
+ * and that the data plane plugin processes
+ */
+#define foreach_vpe_api_msg \
+_(pot_profile_add, "name <name> id [0-1] " \
+ "prime-number <0xu64> bits-in-random [0-64] " \
+ "secret-share <0xu64> lpc <0xu64> polynomial-public <0xu64> " \
+ "[validator-key <0xu64>] [validity <0xu64>]") \
+_(pot_profile_activate, "name <name> id [0-1] ") \
+_(pot_profile_del, "[id <nn>]") \
+_(pot_profile_show_config_dump, "id [0-1]")
+
+void vat_api_hookup (vat_main_t *vam)
+{
+ pot_test_main_t * sm = &pot_test_main;
+ /* Hook up handlers for replies from the data plane plug-in */
+#define _(N,n) \
+ vl_msg_api_set_handlers((VL_API_##N + sm->msg_id_base), \
+ #n, \
+ vl_api_##n##_t_handler, \
+ vl_noop_handler, \
+ vl_api_##n##_t_endian, \
+ vl_api_##n##_t_print, \
+ sizeof(vl_api_##n##_t), 1);
+ foreach_vpe_api_reply_msg;
+#undef _
+
+ /* API messages we can send */
+#define _(n,h) hash_set_mem (vam->function_by_name, #n, api_##n);
+ foreach_vpe_api_msg;
+#undef _
+
+ /* Help strings */
+#define _(n,h) hash_set_mem (vam->help_by_name, #n, h);
+ foreach_vpe_api_msg;
+#undef _
+}
+
+clib_error_t * vat_plugin_register (vat_main_t *vam)
+{
+ pot_test_main_t * sm = &pot_test_main;
+ u8 * name;
+
+ sm->vat_main = vam;
+
+ name = format (0, "ioam_pot_%08x%c", api_version, 0);
+ sm->msg_id_base = vl_client_get_first_plugin_msg_id ((char *) name);
+
+ if (sm->msg_id_base != (u16) ~0)
+ vat_api_hookup (vam);
+
+ vec_free(name);
+
+ return 0;
+}
diff --git a/src/plugins/ioam/lib-pot/pot_util.c b/src/plugins/ioam/lib-pot/pot_util.c
new file mode 100644
index 00000000000..a253ad4130f
--- /dev/null
+++ b/src/plugins/ioam/lib-pot/pot_util.c
@@ -0,0 +1,445 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <vnet/vnet.h>
+#include <stdint.h>
+#include <time.h>
+#include <string.h>
+#include <vppinfra/mem.h>
+#include "math64.h"
+#include "pot_util.h"
+
+pot_main_t pot_main;
+
+static void pot_profile_cleanup(pot_profile *profile);
+
+static void pot_main_profiles_reset (void)
+{
+ pot_main_t *sm = &pot_main;
+ int i = 0;
+
+ for (i = 0; i < MAX_POT_PROFILES; i++)
+ {
+ pot_profile_cleanup(&(sm->profile_list[i]));
+ }
+ sm->active_profile_id = 0;
+ if (sm->profile_list_name)
+ vec_free(sm->profile_list_name);
+ sm->profile_list_name = NULL;
+}
+
+int pot_util_init (void)
+{
+ pot_main_profiles_reset();
+
+ return(0);
+}
+
+static void pot_profile_init(pot_profile * new, u8 id)
+{
+ if (new)
+ {
+ memset(new, 0, sizeof(pot_profile));
+ new->id = id;
+ }
+}
+
+pot_profile *pot_profile_find(u8 id)
+{
+ pot_main_t *sm = &pot_main;
+
+ if (id < MAX_POT_PROFILES)
+ {
+ return (&(sm->profile_list[id]));
+ }
+ return (NULL);
+}
+static int pot_profile_name_equal (u8 *name0, u8 *name1)
+{
+ int len0, len1;
+
+ len0 = vec_len (name0);
+ len1 = vec_len (name1);
+ if (len0 != len1)
+ return(0);
+ return (0==strncmp ((char *) name0, (char *)name1, len0));
+}
+
+int pot_profile_list_is_enabled (u8 *name)
+{
+ pot_main_t *sm = &pot_main;
+ return (pot_profile_name_equal(sm->profile_list_name, name));
+}
+
+void pot_profile_list_init(u8 * profile_list_name)
+{
+ pot_main_t *sm = &pot_main;
+ int i = 0;
+
+ /* If it is the same profile list skip reset */
+ if (pot_profile_name_equal(sm->profile_list_name, profile_list_name))
+ {
+ return;
+ }
+
+ pot_main_profiles_reset();
+ if (vec_len(profile_list_name))
+ sm->profile_list_name = (u8 *)vec_dup(profile_list_name);
+ else
+ sm->profile_list_name = 0;
+ sm->active_profile_id = 0;
+
+ for (i = 0; i < MAX_POT_PROFILES; i++)
+ {
+ pot_profile_init(&(sm->profile_list[i]), i);
+ }
+}
+
+static void pot_profile_cleanup(pot_profile * profile)
+{
+ u16 id = profile->id;
+
+ memset(profile, 0, sizeof(pot_profile));
+ profile->id = id; /* Restore id alone */
+}
+
+int pot_profile_create(pot_profile * profile, u64 prime,
+ u64 poly2, u64 lpc, u64 secret_share)
+{
+ if (profile && !profile->in_use)
+ {
+ pot_profile_cleanup(profile);
+ profile->prime = prime;
+ profile->primeinv = 1.0 / prime;
+ profile->lpc = lpc;
+ profile->poly_pre_eval = poly2;
+ profile->secret_share = secret_share;
+ profile->total_pkts_using_this_profile = 0;
+ profile->valid = 1;
+ return(0);
+ }
+
+ return(-1);
+}
+
+int pot_set_validator(pot_profile * profile, u64 key)
+{
+ if (profile && !profile->in_use)
+ {
+ profile->validator = 1;
+ profile->secret_key = key;
+ return(0);
+ }
+ return(-1);
+}
+
+always_inline u64 pot_update_cumulative_inline(u64 cumulative, u64 random,
+ u64 secret_share, u64 prime, u64 lpc, u64 pre_split, double prime_inv)
+{
+ u64 share_random = 0;
+ u64 cumulative_new = 0;
+
+ /*
+ * calculate split share for random
+ */
+ share_random = add64_mod(pre_split, random, prime, prime_inv);
+
+ /*
+ * lpc * (share_secret + share_random)
+ */
+ share_random = add64_mod(share_random, secret_share, prime, prime_inv);
+ share_random = mul64_mod(share_random, lpc, prime, prime_inv);
+
+ cumulative_new = add64_mod(cumulative, share_random, prime, prime_inv);
+
+ return (cumulative_new);
+}
+
+u64 pot_update_cumulative(pot_profile * profile, u64 cumulative, u64 random)
+{
+ if (profile && profile->valid != 0)
+ {
+ return (pot_update_cumulative_inline(cumulative, random, profile->secret_share,
+ profile->prime, profile->lpc, profile->poly_pre_eval,
+ profile->primeinv));
+ }
+ return (0);
+}
+
+always_inline u8 pot_validate_inline(u64 secret, u64 prime, double prime_inv,
+ u64 cumulative, u64 random)
+{
+ if (cumulative == (random + secret))
+ {
+ return (1);
+ }
+ else if (cumulative == add64_mod(random, secret, prime, prime_inv))
+ {
+ return (1);
+ }
+ return (0);
+}
+
+/*
+ * return True if the cumulative matches secret from a profile
+ */
+u8 pot_validate(pot_profile * profile, u64 cumulative, u64 random)
+{
+ if (profile && profile->validator)
+ {
+ return (pot_validate_inline(profile->secret_key, profile->prime,
+ profile->primeinv, cumulative, random));
+ }
+ return (0);
+}
+
+/*
+ * Utility function to get random number per pack
+ */
+u64 pot_generate_random(pot_profile * profile)
+{
+ u64 random = 0;
+ int32_t second_half;
+ static u32 seed = 0;
+
+ if (PREDICT_FALSE(!seed))
+ seed = random_default_seed();
+
+ /*
+ * Upper 4 bytes seconds
+ */
+ random = (u64) time(NULL);
+
+ random &= 0xffffffff;
+ random = random << 32;
+ /*
+ * Lower 4 bytes random number
+ */
+ second_half = random_u32(&seed);
+
+ random |= second_half;
+
+ if (PREDICT_TRUE(profile != NULL))
+ {
+ random &= profile->bit_mask;
+ }
+ return (random);
+}
+
+int pot_profile_set_bit_mask(pot_profile * profile, u16 bits)
+{
+ int sizeInBits;
+
+ if (profile && !profile->in_use)
+ {
+ sizeInBits = sizeof(profile->bit_mask) * 8;
+ profile->bit_mask =
+ (bits >=
+ sizeInBits ? (u64) - 1 : (u64) ((u64) 1 << (u64) bits) - 1);
+ return(0);
+ }
+ return(-1);
+}
+
+clib_error_t *clear_pot_profile_command_fn(vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+
+ pot_main_profiles_reset();
+
+ return 0;
+}
+
+void clear_pot_profiles()
+{
+ clear_pot_profile_command_fn(0, 0, 0);
+}
+
+VLIB_CLI_COMMAND(clear_pot_profile_command) =
+{
+.path = "clear pot profile",
+.short_help = "clear pot profile [<index>|all]",
+.function = clear_pot_profile_command_fn,
+};
+
+static clib_error_t *set_pot_profile_command_fn(vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ u64 prime;
+ u64 secret_share;
+ u64 secret_key;
+ u8 validator = 0;
+ u32 profile_id = ~0;
+ u32 bits;
+ u64 lpc = 0, poly2 = 0;
+ pot_profile *profile = NULL;
+ u8 *profile_list_name = NULL;
+
+ bits = MAX_BITS;
+
+ while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat(input, "name %s",
+ &profile_list_name));
+ else if (unformat(input, "id %d", &profile_id))
+ ;
+ else if (unformat(input, "validate-key 0x%Lx", &secret_key))
+ validator = 1;
+ else if (unformat(input, "prime-number 0x%Lx", &prime))
+ ;
+ else if (unformat(input, "secret_share 0x%Lx", &secret_share))
+ ;
+ else if (unformat(input, "polynomial2 0x%Lx", &poly2))
+ ;
+ else if (unformat(input, "lpc 0x%Lx", &lpc))
+ ;
+ else if (unformat(input, "bits-in-random %d", &bits))
+ {
+ if (bits > MAX_BITS)
+ bits = MAX_BITS;
+ }
+ else
+ break;
+ }
+ if (profile_list_name == 0)
+ {
+ return clib_error_return(0, "Name cannot be null");
+ }
+ pot_profile_list_init(profile_list_name);
+ profile = pot_profile_find(profile_id);
+
+ if (profile)
+ {
+ pot_profile_create(profile, prime, poly2, lpc, secret_share);
+ if (validator)
+ pot_set_validator(profile, secret_key);
+ pot_profile_set_bit_mask(profile, bits);
+ }
+ vec_free(profile_list_name);
+ return 0;
+}
+
+VLIB_CLI_COMMAND(set_pot_profile_command) =
+{
+.path = "set pot profile",
+.short_help = "set pot profile name <string> id [0-1] [validator-key 0xu64] \
+ prime-number 0xu64 secret_share 0xu64 lpc 0xu64 \
+ polynomial2 0xu64 bits-in-random [0-64] ",
+.function = set_pot_profile_command_fn,
+};
+
+static clib_error_t *set_pot_profile_activate_command_fn(vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ pot_main_t *sm = &pot_main;
+ u8 *profile_list_name = NULL;
+ u32 id = 0;
+ clib_error_t *result = NULL;
+
+ while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat(input, "name %s",
+ &profile_list_name));
+ else if (unformat(input, "id %d", &id))
+ ;
+ else
+ return clib_error_return(0, "unknown input `%U'",
+ format_unformat_error, input);
+ }
+ if (profile_list_name == 0)
+ {
+ return clib_error_return(0, "Name cannot be null");
+ }
+
+ if (!pot_profile_list_is_enabled(profile_list_name)) {
+ result = clib_error_return(0, "%s list is not enabled, profile in use %s",
+ profile_list_name, sm->profile_list_name);
+ } else if (0 != pot_profile_set_active((u8)id)) {
+ result = clib_error_return(0, "Profile %d not defined in %s",
+ id, sm->profile_list_name);
+ }
+ vec_free(profile_list_name);
+ return result;
+}
+
+VLIB_CLI_COMMAND(set_pot_profile_activate_command) =
+{
+.path = "set pot profile-active",
+.short_help = "set pot profile-active name <string> id [0-1]",
+.function = set_pot_profile_activate_command_fn,
+};
+
+static clib_error_t *show_pot_profile_command_fn(vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ pot_main_t *sm = &pot_main;
+ pot_profile *p = NULL;
+ u16 i;
+ u8 *s = 0;
+
+ if (vec_len(sm->profile_list_name) == 0)
+ {
+ s = format(s, "POT Profiles not configured\n");
+ vlib_cli_output(vm, "%v", s);
+ return 0;
+ }
+ s = format(s, "Profile list in use : %s\n",sm->profile_list_name);
+ for (i = 0; i < MAX_POT_PROFILES; i++)
+ {
+ p = pot_profile_find(i);
+ if (p->valid == 0)
+ continue;
+ s = format(s, "POT Profile at index: %d\n", i);
+ s = format(s, " Id : %d\n", p->id);
+ s = format(s, " Validator : %s (%d)\n",
+ (p->validator) ? "True" : "False", p->validator);
+ if (p->validator == 1)
+ s = format(s, " Secret key : 0x%Lx (%Ld)\n",
+ p->secret_key, p->secret_key);
+ s = format(s, " Secret share : 0x%Lx (%Ld)\n",
+ p->secret_share, p->secret_share);
+ s = format(s, " Prime number : 0x%Lx (%Ld)\n",
+ p->prime, p->prime);
+ s = format(s, "2nd polynomial(eval) : 0x%Lx (%Ld)\n",
+ p->poly_pre_eval, p->poly_pre_eval);
+ s = format(s, " LPC : 0x%Lx (%Ld)\n", p->lpc, p->lpc);
+
+ s = format(s, " Bit mask : 0x%Lx (%Ld)\n",
+ p->bit_mask, p->bit_mask);
+ }
+
+ p = pot_profile_find(sm->active_profile_id);
+
+ if (p && p->valid && p->in_use) {
+ s = format(s, "\nProfile index in use: %d\n", sm->active_profile_id);
+ s = format(s, "Pkts passed : 0x%Lx (%Ld)\n",
+ p->total_pkts_using_this_profile,
+ p->total_pkts_using_this_profile);
+ if (pot_is_decap(p))
+ s = format(s, " This is Decap node. \n");
+ } else {
+ s = format(s, "\nProfile index in use: None\n");
+ }
+ vlib_cli_output(vm, "%v", s);
+ vec_free(s);
+
+ return 0;
+}
+
+VLIB_CLI_COMMAND(show_pot_profile_command) =
+{
+.path = "show pot profile",
+.short_help = "show pot profile",
+.function = show_pot_profile_command_fn,
+};
diff --git a/src/plugins/ioam/lib-pot/pot_util.h b/src/plugins/ioam/lib-pot/pot_util.h
new file mode 100644
index 00000000000..9df31fae0df
--- /dev/null
+++ b/src/plugins/ioam/lib-pot/pot_util.h
@@ -0,0 +1,195 @@
+/*
+ * pot_util.h -- Proof Of Transit Utility Header
+ *
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef include_vnet_pot_util_h
+#define include_vnet_pot_util_h
+
+#include <vnet/ip/ip6_hop_by_hop.h>
+#define debug_ioam debug_ioam_fn
+/* Dont change this size 256. This is there across multiple components */
+#define PATH_NAME_SIZE 256
+
+/* Ring size. this should be same as the one in ODL. Do not change this
+ without change in ODL. */
+#define MAX_POT_PROFILES 2
+
+/**
+ * Usage:
+ *
+ * On any node that participates in Proof of Transit:
+ *
+ * Step 1: Initialize this library by calling pot_init()
+ * Step 2: Setup a proof of transit profile that contains all the parameters needed to compute cumulative:
+ * Call these functions:
+ * pot_profile_find
+ * pot_profile_create
+ * pot_profile_set_bit_mask - To setup how large we want the numbers used in the computation and random number <= 64 bits
+ * Step 2a: For validator do this:
+ * pot_set_validator
+ * Step 2b: On initial node enable the profile to be used:
+ * pot_profile_set_active / pot_profile_get_active will return the profile
+ * Step 3a: At the initial node to generate Random number that will be read by all other nodes:
+ * pot_generate_random
+ * Step 3b: At all nodes including initial and verifier call this to compute cumulative:
+ * pot_update_cumulative
+ * Step 4: At the verifier:
+ * pot_validate
+ *
+ */
+
+typedef struct pot_profile_
+{
+ u8 id : 1;
+ u8 valid : 1;
+ u8 in_use : 1;
+ u64 random;
+ u8 validator;
+ u64 secret_key;
+ u64 secret_share;
+ u64 prime;
+ u64 lpc;
+ u64 poly_pre_eval;
+ u64 bit_mask;
+ u64 limit;
+ double primeinv;
+ u64 total_pkts_using_this_profile;
+} pot_profile;
+
+typedef struct {
+ /* Name of the default profile list in use*/
+ u8 *profile_list_name;
+ pot_profile profile_list[MAX_POT_PROFILES];
+ /* number of profiles in the list */
+ u8 active_profile_id : 1;
+
+ /* API message ID base */
+ u16 msg_id_base;
+
+ /* convenience */
+ vlib_main_t * vlib_main;
+ vnet_main_t * vnet_main;
+} pot_main_t;
+
+extern pot_main_t pot_main;
+
+/*
+ * Initialize proof of transit
+ */
+int pot_util_init(void);
+void pot_profile_list_init(u8 * name);
+
+
+/*
+ * Find a pot profile by ID
+ */
+pot_profile *pot_profile_find(u8 id);
+
+static inline u16 pot_profile_get_id(pot_profile * profile)
+{
+ if (profile)
+ {
+ return (profile->id);
+ }
+ return (0);
+}
+
+/* setup and clean up profile */
+int pot_profile_create(pot_profile * profile, u64 prime,
+ u64 poly2, u64 lpc, u64 secret_share);
+/*
+ * Setup profile as a validator
+ */
+int pot_set_validator(pot_profile * profile, u64 key);
+
+/*
+ * Setup max bits to be used for random number generation
+ */
+#define MAX_BITS 64
+int pot_profile_set_bit_mask(pot_profile * profile, u16 bits);
+
+/*
+ * Given a random and cumulative compute the new cumulative for a given profile
+ */
+u64 pot_update_cumulative(pot_profile * profile, u64 cumulative, u64 random);
+
+/*
+ * return True if the cumulative matches secret from a profile
+ */
+u8 pot_validate(pot_profile * profile, u64 cumulative, u64 random);
+
+/*
+ * Utility function to get random number per pack
+ */
+u64 pot_generate_random(pot_profile * profile);
+
+
+extern void clear_pot_profiles();
+extern int pot_profile_list_is_enabled(u8 *name);
+
+static inline u8 pot_is_decap(pot_profile * p)
+{
+ return (p->validator == 1);
+}
+
+static inline int pot_profile_set_active (u8 id)
+{
+ pot_main_t *sm = &pot_main;
+ pot_profile *profile = NULL;
+ pot_profile *current_active_prof = NULL;
+
+ current_active_prof = pot_profile_find(sm->active_profile_id);
+ profile = pot_profile_find(id);
+ if (profile && profile->valid) {
+ sm->active_profile_id = id;
+ current_active_prof->in_use = 0;
+ profile->in_use = 1;
+ return(0);
+ }
+ return(-1);
+}
+static inline u8 pot_profile_get_active_id (void)
+{
+ pot_main_t *sm = &pot_main;
+ return (sm->active_profile_id);
+}
+
+static inline pot_profile * pot_profile_get_active (void)
+{
+ pot_main_t *sm = &pot_main;
+ pot_profile *profile = NULL;
+ profile = pot_profile_find(sm->active_profile_id);
+ if (profile && profile->in_use)
+ return(profile);
+ return (NULL);
+}
+
+static inline void pot_profile_reset_usage_stats (pot_profile *pow)
+{
+ if (pow) {
+ pow->total_pkts_using_this_profile = 0;
+ }
+}
+
+static inline void pot_profile_incr_usage_stats (pot_profile *pow)
+{
+ if (pow) {
+ pow->total_pkts_using_this_profile++;
+ }
+}
+
+
+#endif
diff --git a/src/plugins/ioam/lib-trace/trace.api b/src/plugins/ioam/lib-trace/trace.api
new file mode 100644
index 00000000000..cb9583256f6
--- /dev/null
+++ b/src/plugins/ioam/lib-trace/trace.api
@@ -0,0 +1,92 @@
+/* Hey Emacs use -*- mode: C -*- */
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+/** \brief iOAM6 Trace - Set the iOAM6 trace profile
+ @param trace_type - Type of trace requested
+ @param num_elts - Number of trace elements to be inserted
+ @param node_id - Trace Node ID
+ @param trace_tsp- Timestamp resolution
+ @param app_data - Application specific opaque
+*/
+define trace_profile_add {
+ u32 client_index;
+ u32 context;
+ u8 trace_type;
+ u8 num_elts;
+ u8 trace_tsp;
+ u32 node_id;
+ u32 app_data;
+};
+
+/** \brief Trace profile add / del response
+ @param context - sender context, to match reply w/ request
+ @param retval - return value for request
+*/
+define trace_profile_add_reply {
+ u32 context;
+ i32 retval;
+};
+
+
+
+/** \brief Delete trace Profile
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+*/
+define trace_profile_del {
+ u32 client_index;
+ u32 context;
+};
+
+/** \brief Trace profile add / del response
+ @param context - sender context, to match reply w/ request
+ @param retval - return value for request
+*/
+define trace_profile_del_reply {
+ u32 context;
+ i32 retval;
+};
+
+
+
+/** \brief Show trace Profile
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+*/
+define trace_profile_show_config {
+ u32 client_index;
+ u32 context;
+};
+
+/** \brief Show trace config response
+ @param context - sender context, to match reply w/ request
+ @param retval - return value for request
+ @param trace_type - Type of trace requested
+ @param num_elts - Number of trace elements to be inserted
+ @param node_id - Trace Node ID
+ @param trace_tsp- Timestamp resolution
+ @param app_data - Application specific opaque
+*/
+define trace_profile_show_config_reply {
+ u32 context;
+ i32 retval;
+ u8 trace_type;
+ u8 num_elts;
+ u8 trace_tsp;
+ u32 node_id;
+ u32 app_data;
+};
diff --git a/src/plugins/ioam/lib-trace/trace_all_api_h.h b/src/plugins/ioam/lib-trace/trace_all_api_h.h
new file mode 100644
index 00000000000..223f95450aa
--- /dev/null
+++ b/src/plugins/ioam/lib-trace/trace_all_api_h.h
@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/* Include the generated file, see BUILT_SOURCES in Makefile.am */
+#include <ioam/lib-trace/trace.api.h>
diff --git a/src/plugins/ioam/lib-trace/trace_api.c b/src/plugins/ioam/lib-trace/trace_api.c
new file mode 100644
index 00000000000..7e0d708e155
--- /dev/null
+++ b/src/plugins/ioam/lib-trace/trace_api.c
@@ -0,0 +1,252 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
+ *------------------------------------------------------------------
+ * trace_api.c - iOAM Trace related APIs to create
+ * and maintain profiles
+ *------------------------------------------------------------------
+ */
+
+#include <vnet/vnet.h>
+#include <vnet/plugin/plugin.h>
+#include <ioam/lib-trace/trace_util.h>
+
+#include <vlibapi/api.h>
+#include <vlibmemory/api.h>
+#include <vlibsocket/api.h>
+
+/* define message IDs */
+#include <ioam/lib-trace/trace_msg_enum.h>
+
+/* define message structures */
+#define vl_typedefs
+#include <ioam/lib-trace/trace_all_api_h.h>
+#undef vl_typedefs
+
+/* define generated endian-swappers */
+#define vl_endianfun
+#include <ioam/lib-trace/trace_all_api_h.h>
+#undef vl_endianfun
+
+/* instantiate all the print functions we know about */
+#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
+#define vl_printfun
+#include <ioam/lib-trace/trace_all_api_h.h>
+#undef vl_printfun
+
+/* Get the API version number */
+#define vl_api_version(n,v) static u32 api_version=(v);
+#include <ioam/lib-trace/trace_all_api_h.h>
+#undef vl_api_version
+
+/*
+ * A handy macro to set up a message reply.
+ * Assumes that the following variables are available:
+ * mp - pointer to request message
+ * rmp - pointer to reply message type
+ * rv - return value
+ */
+
+#define TRACE_REPLY_MACRO(t) \
+do { \
+ unix_shared_memory_queue_t * q = \
+ vl_api_client_index_to_input_queue (mp->client_index); \
+ if (!q) \
+ return; \
+ \
+ rmp = vl_msg_api_alloc (sizeof (*rmp)); \
+ rmp->_vl_msg_id = ntohs((t)+sm->msg_id_base); \
+ rmp->context = mp->context; \
+ rmp->retval = ntohl(rv); \
+ \
+ vl_msg_api_send_shmem (q, (u8 *)&rmp); \
+} while(0);
+
+/* *INDENT-OFF* */
+#define TRACE_REPLY_MACRO2(t, body) \
+do { \
+ unix_shared_memory_queue_t * q; \
+ rv = vl_msg_api_pd_handler (mp, rv); \
+ q = vl_api_client_index_to_input_queue (mp->client_index); \
+ if (!q) \
+ return; \
+ \
+ rmp = vl_msg_api_alloc (sizeof (*rmp)); \
+ rmp->_vl_msg_id = ntohs((t)+sm->msg_id_base); \
+ rmp->context = mp->context; \
+ rmp->retval = ntohl(rv); \
+ do {body;} while (0); \
+ vl_msg_api_send_shmem (q, (u8 *)&rmp); \
+} while(0);
+/* *INDENT-ON* */
+
+/* List of message types that this plugin understands */
+
+#define foreach_trace_plugin_api_msg \
+_(TRACE_PROFILE_ADD, trace_profile_add) \
+_(TRACE_PROFILE_DEL, trace_profile_del) \
+_(TRACE_PROFILE_SHOW_CONFIG, trace_profile_show_config)
+
+static void vl_api_trace_profile_add_t_handler
+ (vl_api_trace_profile_add_t * mp)
+{
+ trace_main_t *sm = &trace_main;
+ int rv = 0;
+ vl_api_trace_profile_add_reply_t *rmp;
+ trace_profile *profile = NULL;
+
+ profile = trace_profile_find ();
+ if (profile)
+ {
+ rv =
+ trace_profile_create (profile, mp->trace_type, mp->num_elts,
+ mp->trace_tsp, ntohl (mp->node_id),
+ ntohl (mp->app_data));
+ if (rv != 0)
+ goto ERROROUT;
+ }
+ else
+ {
+ rv = -3;
+ }
+ERROROUT:
+ TRACE_REPLY_MACRO (VL_API_TRACE_PROFILE_ADD_REPLY);
+}
+
+
+static void vl_api_trace_profile_del_t_handler
+ (vl_api_trace_profile_del_t * mp)
+{
+ trace_main_t *sm = &trace_main;
+ int rv = 0;
+ vl_api_trace_profile_del_reply_t *rmp;
+
+ clear_trace_profiles ();
+
+ TRACE_REPLY_MACRO (VL_API_TRACE_PROFILE_DEL_REPLY);
+}
+
+static void vl_api_trace_profile_show_config_t_handler
+ (vl_api_trace_profile_show_config_t * mp)
+{
+ trace_main_t *sm = &trace_main;
+ vl_api_trace_profile_show_config_reply_t *rmp;
+ int rv = 0;
+ trace_profile *profile = trace_profile_find ();
+ if (profile->valid)
+ {
+ TRACE_REPLY_MACRO2 (VL_API_TRACE_PROFILE_SHOW_CONFIG_REPLY,
+ rmp->trace_type = profile->trace_type;
+ rmp->num_elts = profile->num_elts;
+ rmp->trace_tsp = profile->trace_tsp;
+ rmp->node_id = htonl (profile->node_id);
+ rmp->app_data = htonl (profile->app_data);
+ );
+ }
+ else
+ {
+ TRACE_REPLY_MACRO2 (VL_API_TRACE_PROFILE_SHOW_CONFIG_REPLY,
+ rmp->trace_type = 0;
+ rmp->num_elts = 0; rmp->trace_tsp = 0;
+ rmp->node_id = 0; rmp->app_data = 0;
+ );
+ }
+}
+
+/*
+ * This routine exists to convince the vlib plugin framework that
+ * we haven't accidentally copied a random .dll into the plugin directory.
+ *
+ * Also collects global variable pointers passed from the vpp engine
+ */
+
+clib_error_t *
+vlib_plugin_register (vlib_main_t * vm, vnet_plugin_handoff_t * h,
+ int from_early_init)
+{
+ trace_main_t *sm = &trace_main;
+ clib_error_t *error = 0;
+
+ sm->vlib_main = vm;
+ sm->vnet_main = h->vnet_main;
+ return error;
+}
+
+/* Set up the API message handling tables */
+static clib_error_t *
+trace_plugin_api_hookup (vlib_main_t * vm)
+{
+ trace_main_t *sm = &trace_main;
+#define _(N,n) \
+ vl_msg_api_set_handlers((VL_API_##N + sm->msg_id_base), \
+ #n, \
+ vl_api_##n##_t_handler, \
+ vl_noop_handler, \
+ vl_api_##n##_t_endian, \
+ vl_api_##n##_t_print, \
+ sizeof(vl_api_##n##_t), 1);
+ foreach_trace_plugin_api_msg;
+#undef _
+
+ return 0;
+}
+
+#define vl_msg_name_crc_list
+#include <ioam/lib-trace/trace_all_api_h.h>
+#undef vl_msg_name_crc_list
+
+static void
+setup_message_id_table (trace_main_t * sm, api_main_t * am)
+{
+#define _(id,n,crc) \
+ vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id + sm->msg_id_base);
+ foreach_vl_msg_name_crc_trace;
+#undef _
+}
+
+static clib_error_t *
+trace_init (vlib_main_t * vm)
+{
+ trace_main_t *sm = &trace_main;
+ clib_error_t *error = 0;
+ u8 *name;
+
+ bzero (sm, sizeof (trace_main));
+ (void) trace_util_init ();
+ name = format (0, "ioam_trace_%08x%c", api_version, 0);
+
+ /* Ask for a correctly-sized block of API message decode slots */
+ sm->msg_id_base = vl_msg_api_get_msg_ids
+ ((char *) name, VL_MSG_FIRST_AVAILABLE);
+
+ error = trace_plugin_api_hookup (vm);
+
+ /* Add our API messages to the global name_crc hash table */
+ setup_message_id_table (sm, &api_main);
+
+ vec_free (name);
+
+ return error;
+}
+
+VLIB_INIT_FUNCTION (trace_init);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/plugins/ioam/lib-trace/trace_msg_enum.h b/src/plugins/ioam/lib-trace/trace_msg_enum.h
new file mode 100644
index 00000000000..78c35665f3c
--- /dev/null
+++ b/src/plugins/ioam/lib-trace/trace_msg_enum.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef included_trace_msg_enum_h
+#define included_trace_msg_enum_h
+
+#include <vppinfra/byte_order.h>
+
+#define vl_msg_id(n,h) n,
+typedef enum {
+#include <ioam/lib-trace/trace_all_api_h.h>
+ /* We'll want to know how many messages IDs we need... */
+ VL_MSG_FIRST_AVAILABLE,
+} vl_msg_id_t;
+#undef vl_msg_id
+
+#endif /* included_trace_msg_enum_h */
diff --git a/src/plugins/ioam/lib-trace/trace_test.c b/src/plugins/ioam/lib-trace/trace_test.c
new file mode 100644
index 00000000000..111dd461b5b
--- /dev/null
+++ b/src/plugins/ioam/lib-trace/trace_test.c
@@ -0,0 +1,292 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
+ *------------------------------------------------------------------
+ * trace_test.c - test harness for trace plugin
+ *------------------------------------------------------------------
+ */
+
+#include <vat/vat.h>
+#include <vlibapi/api.h>
+#include <vlibmemory/api.h>
+#include <vlibsocket/api.h>
+#include <vppinfra/error.h>
+
+/* Declare message IDs */
+#include <ioam/lib-trace/trace_msg_enum.h>
+
+/* define message structures */
+#define vl_typedefs
+#include <ioam/lib-trace/trace_all_api_h.h>
+#undef vl_typedefs
+
+/* declare message handlers for each api */
+
+#define vl_endianfun /* define message structures */
+#include <ioam/lib-trace/trace_all_api_h.h>
+#undef vl_endianfun
+
+/* instantiate all the print functions we know about */
+#define vl_print(handle, ...)
+#define vl_printfun
+#include <ioam/lib-trace/trace_all_api_h.h>
+#undef vl_printfun
+
+/* Get the API version number. */
+#define vl_api_version(n,v) static u32 api_version=(v);
+#include <ioam/lib-trace/trace_all_api_h.h>
+#undef vl_api_version
+
+
+typedef struct
+{
+ /* API message ID base */
+ u16 msg_id_base;
+ vat_main_t *vat_main;
+} trace_test_main_t;
+
+trace_test_main_t trace_test_main;
+
+#define foreach_standard_reply_retval_handler \
+_(trace_profile_add_reply) \
+_(trace_profile_del_reply)
+
+#define foreach_custom_reply_handler \
+_(trace_profile_show_config_reply, \
+ if(mp->trace_type) \
+ { \
+ errmsg(" Trace Type : 0x%x (%d)\n",mp->trace_type, mp->trace_type); \
+ errmsg(" Trace timestamp precision : %d \n",mp->trace_tsp); \
+ errmsg(" Node Id : 0x%x (%d)\n",htonl(mp->node_id), htonl(mp->node_id)); \
+ errmsg(" App Data : 0x%x (%d)\n",htonl(mp->app_data), htonl(mp->app_data)); \
+ } \
+ else errmsg("No valid trace profile configuration found\n");)
+#define _(n) \
+ static void vl_api_##n##_t_handler \
+ (vl_api_##n##_t * mp) \
+ { \
+ vat_main_t * vam = trace_test_main.vat_main; \
+ i32 retval = ntohl(mp->retval); \
+ if (vam->async_mode) { \
+ vam->async_errors += (retval < 0); \
+ } else { \
+ vam->retval = retval; \
+ vam->result_ready = 1; \
+ } \
+ }
+foreach_standard_reply_retval_handler;
+#undef _
+
+#define _(n,body) \
+ static void vl_api_##n##_t_handler \
+ (vl_api_##n##_t * mp) \
+ { \
+ vat_main_t * vam = trace_test_main.vat_main; \
+ i32 retval = ntohl(mp->retval); \
+ if (vam->async_mode) { \
+ vam->async_errors += (retval < 0); \
+ } else { \
+ vam->retval = retval; \
+ vam->result_ready = 1; \
+ } \
+ if(retval>=0)do{body;} while(0); \
+ else errmsg("Error, retval: %d",retval); \
+ }
+foreach_custom_reply_handler;
+#undef _
+/*
+ * Table of message reply handlers, must include boilerplate handlers
+ * we just generated
+ */
+#define foreach_vpe_api_reply_msg \
+_(TRACE_PROFILE_ADD_REPLY, trace_profile_add_reply) \
+_(TRACE_PROFILE_DEL_REPLY, trace_profile_del_reply) \
+_(TRACE_PROFILE_SHOW_CONFIG_REPLY, trace_profile_show_config_reply)
+
+
+/* M: construct, but don't yet send a message */
+
+#define M(T,t) \
+do { \
+ vam->result_ready = 0; \
+ mp = vl_msg_api_alloc(sizeof(*mp)); \
+ memset (mp, 0, sizeof (*mp)); \
+ mp->_vl_msg_id = ntohs (VL_API_##T + sm->msg_id_base); \
+ mp->client_index = vam->my_client_index; \
+} while(0);
+
+#define M2(T,t,n) \
+do { \
+ vam->result_ready = 0; \
+ mp = vl_msg_api_alloc(sizeof(*mp)+(n)); \
+ memset (mp, 0, sizeof (*mp)); \
+ mp->_vl_msg_id = ntohs (VL_API_##T + sm->msg_id_base); \
+ mp->client_index = vam->my_client_index; \
+} while(0);
+
+/* S: send a message */
+#define S (vl_msg_api_send_shmem (vam->vl_input_queue, (u8 *)&mp))
+
+/* W: wait for results, with timeout */
+#define W \
+do { \
+ timeout = vat_time_now (vam) + 1.0; \
+ \
+ while (vat_time_now (vam) < timeout) { \
+ if (vam->result_ready == 1) { \
+ return (vam->retval); \
+ } \
+ } \
+ return -99; \
+} while(0);
+
+
+static int
+api_trace_profile_add (vat_main_t * vam)
+{
+ trace_test_main_t *sm = &trace_test_main;
+ unformat_input_t *input = vam->input;
+ vl_api_trace_profile_add_t *mp;
+ u8 trace_type = 0;
+ u8 num_elts = 0;
+ int rv = 0;
+ u32 node_id = 0;
+ u32 app_data = 0;
+ u8 trace_tsp = 0;
+ f64 timeout;
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "trace-type 0x%x", &trace_type))
+ ;
+ else if (unformat (input, "trace-elts %d", &num_elts))
+ ;
+ else if (unformat (input, "trace-tsp %d", &trace_tsp))
+ ;
+ else if (unformat (input, "node-id 0x%x", &node_id))
+ ;
+ else if (unformat (input, "app-data 0x%x", &app_data))
+ ;
+
+ else
+ break;
+ }
+
+
+ M (TRACE_PROFILE_ADD, trace_profile_add);
+
+ mp->trace_type = trace_type;
+ mp->trace_tsp = trace_tsp;
+ mp->node_id = htonl (node_id);
+ mp->app_data = htonl (app_data);
+ mp->num_elts = num_elts;
+
+ S;
+ W;
+
+ return (rv);
+}
+
+
+
+static int
+api_trace_profile_del (vat_main_t * vam)
+{
+ trace_test_main_t *sm = &trace_test_main;
+ vl_api_trace_profile_del_t *mp;
+ f64 timeout;
+
+ M (TRACE_PROFILE_DEL, trace_profile_del);
+ S;
+ W;
+ return 0;
+}
+
+static int
+api_trace_profile_show_config (vat_main_t * vam)
+{
+ trace_test_main_t *sm = &trace_test_main;
+ vl_api_trace_profile_show_config_t *mp;
+ f64 timeout;
+ M (TRACE_PROFILE_SHOW_CONFIG, trace_profile_show_config);
+ S;
+ W;
+ return 0;
+}
+
+/*
+ * List of messages that the api test plugin sends,
+ * and that the data plane plugin processes
+ */
+#define foreach_vpe_api_msg \
+_(trace_profile_add, ""\
+ "trace-type <0x1f|0x3|0x9|0x11|0x19> trace-elts <nn> trace-tsp <0|1|2|3> node-id <node id in hex> app-data <app_data in hex>") \
+_(trace_profile_del, "[id <nn>]") \
+_(trace_profile_show_config, "[id <nn>]")
+
+
+void
+vat_api_hookup (vat_main_t * vam)
+{
+ trace_test_main_t *sm = &trace_test_main;
+ /* Hook up handlers for replies from the data plane plug-in */
+#define _(N,n) \
+ vl_msg_api_set_handlers((VL_API_##N + sm->msg_id_base), \
+ #n, \
+ vl_api_##n##_t_handler, \
+ vl_noop_handler, \
+ vl_api_##n##_t_endian, \
+ vl_api_##n##_t_print, \
+ sizeof(vl_api_##n##_t), 1);
+ foreach_vpe_api_reply_msg;
+#undef _
+
+ /* API messages we can send */
+#define _(n,h) hash_set_mem (vam->function_by_name, #n, api_##n);
+ foreach_vpe_api_msg;
+#undef _
+
+ /* Help strings */
+#define _(n,h) hash_set_mem (vam->help_by_name, #n, h);
+ foreach_vpe_api_msg;
+#undef _
+}
+
+clib_error_t *
+vat_plugin_register (vat_main_t * vam)
+{
+ trace_test_main_t *sm = &trace_test_main;
+ u8 *name;
+
+ sm->vat_main = vam;
+
+ name = format (0, "ioam_trace_%08x%c", api_version, 0);
+ sm->msg_id_base = vl_client_get_first_plugin_msg_id ((char *) name);
+
+ if (sm->msg_id_base != (u16) ~ 0)
+ vat_api_hookup (vam);
+
+ vec_free (name);
+
+ return 0;
+}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/plugins/ioam/lib-trace/trace_util.c b/src/plugins/ioam/lib-trace/trace_util.c
new file mode 100644
index 00000000000..5c7f1eefd9c
--- /dev/null
+++ b/src/plugins/ioam/lib-trace/trace_util.c
@@ -0,0 +1,206 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <vnet/vnet.h>
+#include <stdint.h>
+#include <time.h>
+#include <string.h>
+#include <vppinfra/mem.h>
+#include "trace_util.h"
+
+trace_main_t trace_main;
+
+static int
+trace_profile_cleanup (trace_profile * profile)
+{
+
+ memset (profile, 0, sizeof (trace_profile));
+ profile->trace_tsp = TSP_MICROSECONDS; /* Micro seconds */
+ ip6_trace_profile_cleanup (); /* lib-trace_TODO: Remove this once IOAM-IPv6 transport is a plugin */
+ return 0;
+
+}
+
+static int
+trace_main_profiles_reset (void)
+{
+ int rv;
+
+ trace_main_t *sm = &trace_main;
+ rv = trace_profile_cleanup (&(sm->profile));
+ return (rv);
+}
+
+int
+trace_util_init (void)
+{
+ int rv;
+
+ rv = trace_main_profiles_reset ();
+ return (rv);
+}
+
+
+int
+trace_profile_create (trace_profile * profile, u8 trace_type, u8 num_elts,
+ u32 trace_tsp, u32 node_id, u32 app_data)
+{
+
+ if (!trace_type || !num_elts || !(node_id))
+ {
+ return (-1);
+ }
+ if (profile && !profile->valid)
+ {
+ //rv = trace_profile_cleanup (profile);
+ profile->trace_type = trace_type;
+ profile->num_elts = num_elts;
+ profile->trace_tsp = trace_tsp;
+ profile->node_id = node_id;
+ profile->app_data = app_data;
+ profile->valid = 1;
+
+ /* lib-trace_TODO: Remove this once IOAM-IPv6 transport is a plugin */
+ ip6_trace_profile_setup ();
+ return (0);
+ }
+
+ return (-1);
+}
+
+
+
+clib_error_t *
+clear_trace_profile_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+
+ trace_main_profiles_reset ();
+ return 0;
+}
+
+void
+clear_trace_profiles (void)
+{
+ clear_trace_profile_command_fn (0, 0, 0);
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND(clear_trace_profile_command) =
+{
+.path = "clear ioam-trace profile",
+.short_help = "clear ioam-trace profile [<index>|all]",
+.function = clear_trace_profile_command_fn,
+};
+/* *INDENT-ON* */
+
+static clib_error_t *
+set_trace_profile_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ u8 trace_type = 0;
+ u8 num_elts = 0;
+ u32 node_id = 0;
+ u32 app_data = 0;
+ u32 trace_tsp = 0;
+ trace_profile *profile = NULL;
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "trace-type 0x%x", &trace_type));
+ else if (unformat (input, "trace-elts %d", &num_elts));
+ else if (unformat (input, "trace-tsp %d", &trace_tsp));
+ else if (unformat (input, "node-id 0x%x", &node_id));
+ else if (unformat (input, "app-data 0x%x", &app_data));
+ else
+ break;
+ }
+ profile = trace_profile_find ();
+ if (profile)
+ {
+ trace_profile_create (profile, trace_type, num_elts, trace_tsp,
+ node_id, app_data);
+ }
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (set_trace_profile_command, static) =
+{
+.path = "set ioam-trace profile",
+.short_help = "set ioam-trace \
+ trace-type <0x1f|0x3|0x9|0x11|0x19> trace-elts <nn> trace-tsp <0|1|2|3> \
+ node-id <node id in hex> app-data <app_data in hex>",
+.function = set_trace_profile_command_fn,
+};
+/* *INDENT-ON* */
+
+static clib_error_t *
+show_trace_profile_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ trace_profile *p = NULL;
+ u8 *s = 0;
+ p = trace_profile_find ();
+ if (!(p && p->valid))
+ {
+ s = format (s, "\nTrace configuration not valid\n");
+ vlib_cli_output (vm, "%v", s);
+ vec_free (s);
+ return 0;
+ }
+ s = format (s, " HOP BY HOP OPTIONS - TRACE CONFIG - \n");
+ s = format (s, " Trace Type : 0x%x (%d)\n",
+ p->trace_type, p->trace_type);
+ s =
+ format (s, " Trace timestamp precision : %d (%s)\n",
+ p->trace_tsp,
+ (p->trace_tsp ==
+ TSP_SECONDS) ? "Seconds" : ((p->trace_tsp ==
+ TSP_MILLISECONDS) ?
+ "Milliseconds"
+ : (((p->trace_tsp ==
+ TSP_MICROSECONDS) ?
+ "Microseconds" :
+ "Nanoseconds"))));
+ s = format (s, " Num of trace nodes : %d\n", p->num_elts);
+ s =
+ format (s, " Node-id : 0x%x (%d)\n",
+ p->node_id, p->node_id);
+ s =
+ format (s, " App Data : 0x%x (%d)\n",
+ p->app_data, p->app_data);
+ vlib_cli_output (vm, "%v", s);
+ vec_free (s);
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (show_trace_profile_command, static) =
+{
+.path = "show ioam-trace profile",
+.short_help = "show ioam-trace profile",
+.function = show_trace_profile_command_fn,
+};
+/* *INDENT-ON* */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/plugins/ioam/lib-trace/trace_util.h b/src/plugins/ioam/lib-trace/trace_util.h
new file mode 100644
index 00000000000..556f07ee3f1
--- /dev/null
+++ b/src/plugins/ioam/lib-trace/trace_util.h
@@ -0,0 +1,247 @@
+/*
+ * trace_util.h -- Trace Profile Utility header
+ *
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef include_vnet_trace_util_h
+#define include_vnet_trace_util_h
+
+#define debug_ioam debug_ioam_fn
+
+
+/**
+ * Usage:
+ *
+ * On any node that participates in iOAM Trace.
+ *
+ * Step 1: Initialize this library by calling trace_init()
+ * Step 2: Setup a trace profile that contains all the parameters needed to compute cumulative:
+ * Call these functions:
+ * trace_profile_find
+ * trace_profile_create
+ * Step 2a: On initial node enable the profile to be used:
+ * trace_profile_set_active / trace_profile_get_active will return the profile
+ * Step 4: TBD
+ * trace_validate
+ *
+ */
+
+typedef struct trace_profile_
+{
+ u8 valid:1;
+ u8 trace_type;
+ u8 num_elts;
+ /* Configured node-id */
+ u32 node_id;
+ u32 app_data;
+ u32 trace_tsp;
+} trace_profile;
+
+typedef struct
+{
+ /* Name of the default profile list in use */
+ trace_profile profile;
+
+ /* API message ID base */
+ u16 msg_id_base;
+
+ /* convenience */
+ vlib_main_t *vlib_main;
+ vnet_main_t *vnet_main;
+} trace_main_t;
+
+extern trace_main_t trace_main;
+
+/*
+ * Initialize Trace profile
+ */
+int trace_util_init (void);
+
+
+/*
+ * Find a trace profile
+ */
+
+always_inline trace_profile *
+trace_profile_find (void)
+{
+ trace_main_t *sm = &trace_main;
+
+ return (&(sm->profile));
+}
+
+
+/* setup and clean up profile */
+int trace_profile_create (trace_profile * profile, u8 trace_type, u8 num_elts,
+ u32 trace_tsp, u32 node_id, u32 app_data);
+
+void clear_trace_profiles (void);
+
+
+
+#define BIT_TTL_NODEID (1<<0)
+#define BIT_ING_INTERFACE (1<<1)
+#define BIT_EGR_INTERFACE (1<<2)
+#define BIT_TIMESTAMP (1<<3)
+#define BIT_APPDATA (1<<4)
+#define TRACE_TYPE_MASK 0x1F /* Mask of all above bits */
+
+/*
+ 0x00011111 iOAM-trace-type is 0x00011111 then the format of node
+ data is:
+
+ 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Hop_Lim | node_id |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | ingress_if_id | egress_if_id |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ + timestamp +
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | app_data |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+
+*/
+#define TRACE_TYPE_IF_TS_APP 0x1f
+typedef struct
+{
+ u32 ttl_node_id;
+ u16 ingress_if;
+ u16 egress_if;
+ u32 timestamp;
+ u32 app_data;
+} ioam_trace_if_ts_app_t;
+
+/*
+ 0x00000111 iOAM-trace-type is 0x00000111 then the format is:
+
+ 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Hop_Lim | node_id |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | ingress_if_id | egress_if_id |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+
+*/
+
+#define TRACE_TYPE_IF 0x03
+typedef struct
+{
+ u32 ttl_node_id;
+ u16 ingress_if;
+ u16 egress_if;
+} ioam_trace_if_t;
+
+/*
+ 0x00001001 iOAM-trace-type is 0x00001001 then the format is:
+
+ 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Hop_Lim | node_id |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ + timestamp +
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+
+*/
+
+#define TRACE_TYPE_TS 0x09
+typedef struct
+{
+ u32 ttl_node_id;
+ u32 timestamp;
+} ioam_trace_ts_t;
+
+/*
+ 0x00010001 iOAM-trace-type is 0x00010001 then the format is:
+
+
+ 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Hop_Lim | node_id |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | app_data |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+
+*/
+
+
+#define TRACE_TYPE_APP 0x11
+typedef struct
+{
+ u32 ttl_node_id;
+ u32 app_data;
+} ioam_trace_app_t;
+
+/*
+
+ 0x00011001 iOAM-trace-type is 0x00011001 then the format is:
+
+ 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Hop_Lim | node_id |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ + timestamp +
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | app_data |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+*/
+
+#define TRACE_TYPE_TS_APP 0x19
+typedef struct
+{
+ u32 ttl_node_id;
+ u32 timestamp;
+ u32 app_data;
+} ioam_trace_ts_app_t;
+
+
+
+static inline u8
+fetch_trace_data_size (u8 trace_type)
+{
+ u8 trace_data_size = 0;
+
+ if (trace_type == TRACE_TYPE_IF_TS_APP)
+ trace_data_size = sizeof (ioam_trace_if_ts_app_t);
+ else if (trace_type == TRACE_TYPE_IF)
+ trace_data_size = sizeof (ioam_trace_if_t);
+ else if (trace_type == TRACE_TYPE_TS)
+ trace_data_size = sizeof (ioam_trace_ts_t);
+ else if (trace_type == TRACE_TYPE_APP)
+ trace_data_size = sizeof (ioam_trace_app_t);
+ else if (trace_type == TRACE_TYPE_TS_APP)
+ trace_data_size = sizeof (ioam_trace_ts_app_t);
+
+ return trace_data_size;
+}
+
+int ioam_trace_get_sizeof_handler (u32 * result);
+int ip6_trace_profile_setup (void);
+int ip6_trace_profile_cleanup (void);
+
+#define TSP_SECONDS 0
+#define TSP_MILLISECONDS 1
+#define TSP_MICROSECONDS 2
+#define TSP_NANOSECONDS 3
+
+#endif
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/plugins/ioam/lib-vxlan-gpe/ioam_decap.c b/src/plugins/ioam/lib-vxlan-gpe/ioam_decap.c
new file mode 100644
index 00000000000..fd3086571eb
--- /dev/null
+++ b/src/plugins/ioam/lib-vxlan-gpe/ioam_decap.c
@@ -0,0 +1,223 @@
+/*
+ * Copyright (c) 2015 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <vppinfra/error.h>
+#include <vppinfra/hash.h>
+#include <vnet/vnet.h>
+#include <vnet/ip/ip.h>
+#include <vnet/ethernet/ethernet.h>
+#include <vnet/vxlan-gpe/vxlan_gpe.h>
+#include <vnet/vxlan-gpe/vxlan_gpe.h>
+#include <ioam/lib-vxlan-gpe/vxlan_gpe_ioam_packet.h>
+#include <ioam/lib-vxlan-gpe/vxlan_gpe_ioam.h>
+#include <ioam/lib-vxlan-gpe/vxlan_gpe_ioam_util.h>
+
+/* Statistics (not really errors) */
+#define foreach_vxlan_gpe_decap_ioam_v4_error \
+_(DECAPSULATED, "good packets decapsulated")
+
+static char *vxlan_gpe_decap_ioam_v4_error_strings[] = {
+#define _(sym,string) string,
+ foreach_vxlan_gpe_decap_ioam_v4_error
+#undef _
+};
+
+typedef enum
+{
+#define _(sym,str) VXLAN_GPE_DECAP_IOAM_V4_ERROR_##sym,
+ foreach_vxlan_gpe_decap_ioam_v4_error
+#undef _
+ VXLAN_GPE_DECAP_IOAM_V4_N_ERROR,
+} vxlan_gpe_decap_ioam_v4_error_t;
+
+
+always_inline void
+vxlan_gpe_decap_ioam_v4_two_inline (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vxlan_gpe_main_t * ngm,
+ vlib_buffer_t * b0, vlib_buffer_t * b1,
+ u32 * next0, u32 * next1)
+{
+ vxlan_gpe_ioam_main_t *hm = &vxlan_gpe_ioam_main;
+
+ next0[0] = next1[0] = hm->decap_v4_next_override;
+ vxlan_gpe_encap_decap_ioam_v4_one_inline (vm, node, b0, &next0[0],
+ VXLAN_GPE_DECAP_IOAM_V4_NEXT_DROP,
+ 0 /* use_adj */ );
+ vxlan_gpe_encap_decap_ioam_v4_one_inline (vm, node, b1, &next0[1],
+ VXLAN_GPE_DECAP_IOAM_V4_NEXT_DROP,
+ 0 /* use_adj */ );
+}
+
+
+
+static uword
+vxlan_gpe_decap_ioam (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame, u8 is_ipv6)
+{
+ u32 n_left_from, next_index, *from, *to_next;
+ vxlan_gpe_main_t *ngm = &vxlan_gpe_main;
+ vxlan_gpe_ioam_main_t *hm = &vxlan_gpe_ioam_main;
+
+ from = vlib_frame_vector_args (from_frame);
+ n_left_from = from_frame->n_vectors;
+
+ next_index = node->cached_next_index;
+
+ while (n_left_from > 0)
+ {
+ u32 n_left_to_next;
+
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
+
+ while (n_left_from >= 4 && n_left_to_next >= 2)
+ {
+ u32 bi0, bi1;
+ vlib_buffer_t *b0, *b1;
+ u32 next0, next1;
+
+ next0 = next1 = hm->decap_v4_next_override;
+
+ /* Prefetch next iteration. */
+ {
+ vlib_buffer_t *p2, *p3;
+
+ p2 = vlib_get_buffer (vm, from[2]);
+ p3 = vlib_get_buffer (vm, from[3]);
+
+ vlib_prefetch_buffer_header (p2, LOAD);
+ vlib_prefetch_buffer_header (p3, LOAD);
+
+ CLIB_PREFETCH (p2->data, 2 * CLIB_CACHE_LINE_BYTES, LOAD);
+ CLIB_PREFETCH (p3->data, 2 * CLIB_CACHE_LINE_BYTES, LOAD);
+ }
+
+ bi0 = from[0];
+ bi1 = from[1];
+ to_next[0] = bi0;
+ to_next[1] = bi1;
+ from += 2;
+ to_next += 2;
+ n_left_to_next -= 2;
+ n_left_from -= 2;
+
+ b0 = vlib_get_buffer (vm, bi0);
+ b1 = vlib_get_buffer (vm, bi1);
+
+
+ vlib_buffer_advance (b0,
+ -(word) (sizeof (udp_header_t) +
+ sizeof (ip4_header_t) +
+ sizeof (vxlan_gpe_header_t)));
+ vlib_buffer_advance (b1,
+ -(word) (sizeof (udp_header_t) +
+ sizeof (ip4_header_t) +
+ sizeof (vxlan_gpe_header_t)));
+
+ vxlan_gpe_decap_ioam_v4_two_inline (vm, node, ngm, b0, b1,
+ &next0, &next1);
+
+
+ vlib_validate_buffer_enqueue_x2 (vm, node, next_index, to_next,
+ n_left_to_next, bi0, bi1, next0,
+ next1);
+
+ if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ vxlan_gpe_ioam_v4_trace_t *tr = vlib_add_trace (vm, node, b0,
+ sizeof (*tr));
+ }
+ }
+
+ while (n_left_from > 0 && n_left_to_next > 0)
+ {
+ u32 bi0;
+ vlib_buffer_t *b0;
+ u32 next0 = hm->decap_v4_next_override;
+
+ bi0 = from[0];
+ to_next[0] = bi0;
+ from += 1;
+ to_next += 1;
+ n_left_from -= 1;
+ n_left_to_next -= 1;
+
+ b0 = vlib_get_buffer (vm, bi0);
+
+
+ vlib_buffer_advance (b0,
+ -(word) (sizeof (udp_header_t) +
+ sizeof (ip4_header_t) +
+ sizeof (vxlan_gpe_header_t)));
+
+ next0 = hm->decap_v4_next_override;
+ vxlan_gpe_encap_decap_ioam_v4_one_inline (vm, node, b0,
+ &next0,
+ VXLAN_GPE_DECAP_IOAM_V4_NEXT_DROP,
+ 0 /* use_adj */ );
+
+ if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ vxlan_gpe_ioam_v4_trace_t *tr = vlib_add_trace (vm, node, b0,
+ sizeof (*tr));
+ }
+ vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
+ n_left_to_next, bi0, next0);
+ }
+
+ vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+ }
+
+ return from_frame->n_vectors;
+}
+
+
+static uword
+vxlan_gpe_decap_ioam_v4 (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame)
+{
+ return vxlan_gpe_decap_ioam (vm, node, from_frame, 0);
+}
+
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (vxlan_gpe_decap_ioam_v4_node) = {
+ .function = vxlan_gpe_decap_ioam_v4,
+ .name = "vxlan-gpe-decap-ioam-v4",
+ .vector_size = sizeof (u32),
+ .format_trace = format_vxlan_gpe_ioam_v4_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+
+ .n_errors = ARRAY_LEN(vxlan_gpe_decap_ioam_v4_error_strings),
+ .error_strings = vxlan_gpe_decap_ioam_v4_error_strings,
+
+ .n_next_nodes = VXLAN_GPE_DECAP_IOAM_V4_N_NEXT,
+
+ .next_nodes = {
+ [VXLAN_GPE_DECAP_IOAM_V4_NEXT_POP] = "vxlan-gpe-pop-ioam-v4",
+ [VXLAN_GPE_DECAP_IOAM_V4_NEXT_DROP] = "error-drop",
+ },
+};
+/* *INDENT-ON* */
+
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/plugins/ioam/lib-vxlan-gpe/ioam_encap.c b/src/plugins/ioam/lib-vxlan-gpe/ioam_encap.c
new file mode 100644
index 00000000000..4b18bfea533
--- /dev/null
+++ b/src/plugins/ioam/lib-vxlan-gpe/ioam_encap.c
@@ -0,0 +1,194 @@
+/*
+ * Copyright (c) 2015 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <vppinfra/error.h>
+#include <vppinfra/hash.h>
+#include <vnet/vnet.h>
+#include <vnet/ip/ip.h>
+#include <vnet/ethernet/ethernet.h>
+#include <vnet/vxlan-gpe/vxlan_gpe.h>
+#include <ioam/lib-vxlan-gpe/vxlan_gpe_ioam_packet.h>
+#include <ioam/lib-vxlan-gpe/vxlan_gpe_ioam.h>
+#include <ioam/lib-vxlan-gpe/vxlan_gpe_ioam_util.h>
+
+/* Statistics (not really errors) */
+#define foreach_vxlan_gpe_encap_ioam_v4_error \
+_(ENCAPSULATED, "good packets encapsulated")
+
+static char *vxlan_gpe_encap_ioam_v4_error_strings[] = {
+#define _(sym,string) string,
+ foreach_vxlan_gpe_encap_ioam_v4_error
+#undef _
+};
+
+typedef enum
+{
+#define _(sym,str) VXLAN_GPE_ENCAP_IOAM_V4_ERROR_##sym,
+ foreach_vxlan_gpe_encap_ioam_v4_error
+#undef _
+ VXLAN_GPE_ENCAP_IOAM_V4_N_ERROR,
+} vxlan_gpe_encap_ioam_v4_error_t;
+
+typedef enum
+{
+ VXLAN_GPE_ENCAP_IOAM_V4_NEXT_IP4_LOOKUP,
+ VXLAN_GPE_ENCAP_IOAM_V4_NEXT_DROP,
+ VXLAN_GPE_ENCAP_IOAM_V4_N_NEXT
+} vxlan_gpe_encap_ioam_v4_next_t;
+
+
+always_inline void
+vxlan_gpe_encap_ioam_v4_two_inline (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vxlan_gpe_main_t * ngm,
+ vlib_buffer_t * b0, vlib_buffer_t * b1,
+ u32 * next0, u32 * next1)
+{
+ next0[0] = next1[0] = VXLAN_GPE_ENCAP_IOAM_V4_NEXT_IP4_LOOKUP;
+ vxlan_gpe_encap_decap_ioam_v4_one_inline (vm, node, b0, next0,
+ VXLAN_GPE_ENCAP_IOAM_V4_NEXT_DROP,
+ 0 /* use_adj */ );
+ vxlan_gpe_encap_decap_ioam_v4_one_inline (vm, node, b1, next1,
+ VXLAN_GPE_ENCAP_IOAM_V4_NEXT_DROP,
+ 0 /* use_adj */ );
+}
+
+
+static uword
+vxlan_gpe_encap_ioam_v4 (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame)
+{
+ u32 n_left_from, next_index, *from, *to_next;
+ vxlan_gpe_main_t *ngm = &vxlan_gpe_main;
+
+ from = vlib_frame_vector_args (from_frame);
+ n_left_from = from_frame->n_vectors;
+
+ next_index = node->cached_next_index;
+
+ while (n_left_from > 0)
+ {
+ u32 n_left_to_next;
+
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
+
+ while (n_left_from >= 4 && n_left_to_next >= 2)
+ {
+ u32 bi0, bi1;
+ vlib_buffer_t *b0, *b1;
+ u32 next0, next1;
+
+ next0 = next1 = VXLAN_GPE_ENCAP_IOAM_V4_NEXT_IP4_LOOKUP;
+
+ /* Prefetch next iteration. */
+ {
+ vlib_buffer_t *p2, *p3;
+
+ p2 = vlib_get_buffer (vm, from[2]);
+ p3 = vlib_get_buffer (vm, from[3]);
+
+ vlib_prefetch_buffer_header (p2, LOAD);
+ vlib_prefetch_buffer_header (p3, LOAD);
+
+ CLIB_PREFETCH (p2->data, 2 * CLIB_CACHE_LINE_BYTES, LOAD);
+ CLIB_PREFETCH (p3->data, 2 * CLIB_CACHE_LINE_BYTES, LOAD);
+ }
+
+ bi0 = from[0];
+ bi1 = from[1];
+ to_next[0] = bi0;
+ to_next[1] = bi1;
+ from += 2;
+ to_next += 2;
+ n_left_to_next -= 2;
+ n_left_from -= 2;
+
+ b0 = vlib_get_buffer (vm, bi0);
+ b1 = vlib_get_buffer (vm, bi1);
+
+ vxlan_gpe_encap_ioam_v4_two_inline (vm, node, ngm, b0, b1,
+ &next0, &next1);
+
+
+ vlib_validate_buffer_enqueue_x2 (vm, node, next_index, to_next,
+ n_left_to_next, bi0, bi1, next0,
+ next1);
+ }
+
+ while (n_left_from > 0 && n_left_to_next > 0)
+ {
+ u32 bi0;
+ vlib_buffer_t *b0;
+ u32 next0 = VXLAN_GPE_ENCAP_IOAM_V4_NEXT_IP4_LOOKUP;
+
+ bi0 = from[0];
+ to_next[0] = bi0;
+ from += 1;
+ to_next += 1;
+ n_left_from -= 1;
+ n_left_to_next -= 1;
+
+ b0 = vlib_get_buffer (vm, bi0);
+
+ vxlan_gpe_encap_decap_ioam_v4_one_inline (vm, node, b0,
+ &next0,
+ VXLAN_GPE_ENCAP_IOAM_V4_NEXT_DROP,
+ 0 /* use_adj */ );
+
+ if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ vxlan_gpe_ioam_v4_trace_t *tr = vlib_add_trace (vm, node, b0,
+ sizeof (*tr));
+ }
+ vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
+ n_left_to_next, bi0, next0);
+ }
+
+ vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+ }
+
+ return from_frame->n_vectors;
+}
+
+
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (vxlan_gpe_encap_ioam_v4_node) = {
+ .function = vxlan_gpe_encap_ioam_v4,
+ .name = "vxlan-gpe-encap-ioam-v4",
+ .vector_size = sizeof (u32),
+ .format_trace = format_vxlan_gpe_ioam_v4_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+
+ .n_errors = ARRAY_LEN(vxlan_gpe_encap_ioam_v4_error_strings),
+ .error_strings = vxlan_gpe_encap_ioam_v4_error_strings,
+
+ .n_next_nodes = VXLAN_GPE_ENCAP_IOAM_V4_N_NEXT,
+
+ .next_nodes = {
+ [VXLAN_GPE_ENCAP_IOAM_V4_NEXT_IP4_LOOKUP] = "ip4-lookup",
+ [VXLAN_GPE_ENCAP_IOAM_V4_NEXT_DROP] = "error-drop",
+ },
+};
+/* *INDENT-ON* */
+
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/plugins/ioam/lib-vxlan-gpe/ioam_pop.c b/src/plugins/ioam/lib-vxlan-gpe/ioam_pop.c
new file mode 100644
index 00000000000..55c33b144a1
--- /dev/null
+++ b/src/plugins/ioam/lib-vxlan-gpe/ioam_pop.c
@@ -0,0 +1,353 @@
+/*
+ * Copyright (c) 2015 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <vppinfra/error.h>
+#include <vppinfra/hash.h>
+#include <vnet/vnet.h>
+#include <vnet/ip/ip.h>
+#include <vnet/ethernet/ethernet.h>
+#include <vnet/vxlan-gpe/vxlan_gpe.h>
+#include <ioam/lib-vxlan-gpe/vxlan_gpe_ioam.h>
+
+/* Statistics (not really errors) */
+#define foreach_vxlan_gpe_pop_ioam_v4_error \
+_(POPPED, "good packets popped")
+
+static char *vxlan_gpe_pop_ioam_v4_error_strings[] = {
+#define _(sym,string) string,
+ foreach_vxlan_gpe_pop_ioam_v4_error
+#undef _
+};
+
+typedef enum
+{
+#define _(sym,str) VXLAN_GPE_POP_IOAM_V4_ERROR_##sym,
+ foreach_vxlan_gpe_pop_ioam_v4_error
+#undef _
+ VXLAN_GPE_POP_IOAM_V4_N_ERROR,
+} vxlan_gpe_pop_ioam_v4_error_t;
+
+typedef struct
+{
+ ioam_trace_t fmt_trace;
+} vxlan_gpe_pop_ioam_v4_trace_t;
+
+
+u8 *
+format_vxlan_gpe_pop_ioam_v4_trace (u8 * s, va_list * args)
+{
+ CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
+ CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
+ vxlan_gpe_pop_ioam_v4_trace_t *t1
+ = va_arg (*args, vxlan_gpe_pop_ioam_v4_trace_t *);
+ ioam_trace_t *t = &(t1->fmt_trace);
+ vxlan_gpe_ioam_option_t *fmt_trace0;
+ vxlan_gpe_ioam_option_t *opt0, *limit0;
+ vxlan_gpe_ioam_main_t *hm = &vxlan_gpe_ioam_main;
+
+ u8 type0;
+
+ fmt_trace0 = (vxlan_gpe_ioam_option_t *) t->option_data;
+
+ s = format (s, "VXLAN_GPE_IOAM_POP: next_index %d len %d traced %d",
+ t->next_index, fmt_trace0->length, t->trace_len);
+
+ opt0 = (vxlan_gpe_ioam_option_t *) (fmt_trace0 + 1);
+ limit0 = (vxlan_gpe_ioam_option_t *) ((u8 *) fmt_trace0) + t->trace_len;
+
+ while (opt0 < limit0)
+ {
+ type0 = opt0->type;
+ switch (type0)
+ {
+ case 0: /* Pad, just stop */
+ opt0 = (vxlan_gpe_ioam_option_t *) ((u8 *) opt0) + 1;
+ break;
+
+ default:
+ if (hm->trace[type0])
+ {
+ s = (*hm->trace[type0]) (s, opt0);
+ }
+ else
+ {
+ s =
+ format (s, "\n unrecognized option %d length %d", type0,
+ opt0->length);
+ }
+ opt0 =
+ (vxlan_gpe_ioam_option_t *) (((u8 *) opt0) + opt0->length +
+ sizeof (vxlan_gpe_ioam_option_t));
+ break;
+ }
+ }
+
+ return s;
+}
+
+always_inline void
+vxlan_gpe_ioam_pop_v4 (vlib_main_t * vm, vlib_node_runtime_t * node,
+ vlib_buffer_t * b0)
+{
+ ip4_header_t *ip0;
+ udp_header_t *udp_hdr0;
+ vxlan_gpe_header_t *gpe_hdr0;
+ vxlan_gpe_ioam_hdr_t *gpe_ioam0;
+
+ ip0 = vlib_buffer_get_current (b0);
+
+ udp_hdr0 = (udp_header_t *) (ip0 + 1);
+ gpe_hdr0 = (vxlan_gpe_header_t *) (udp_hdr0 + 1);
+ gpe_ioam0 = (vxlan_gpe_ioam_hdr_t *) (gpe_hdr0 + 1);
+
+ /* Pop the iOAM data */
+ vlib_buffer_advance (b0,
+ (word) (sizeof (udp_header_t) +
+ sizeof (ip4_header_t) +
+ sizeof (vxlan_gpe_header_t) +
+ gpe_ioam0->length));
+
+ return;
+}
+
+
+
+always_inline void
+vxlan_gpe_pop_ioam_v4_one_inline (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vxlan_gpe_main_t * ngm,
+ vlib_buffer_t * b0, u32 * next0)
+{
+ CLIB_UNUSED (ip4_header_t * ip0);
+ CLIB_UNUSED (udp_header_t * udp_hdr0);
+ CLIB_UNUSED (vxlan_gpe_header_t * gpe_hdr0);
+ CLIB_UNUSED (vxlan_gpe_ioam_hdr_t * gpe_ioam0);
+ CLIB_UNUSED (vxlan_gpe_ioam_option_t * opt0);
+ CLIB_UNUSED (vxlan_gpe_ioam_option_t * limit0);
+ vxlan_gpe_ioam_main_t *hm = &vxlan_gpe_ioam_main;
+
+
+ /* Pop the iOAM header */
+ ip0 = vlib_buffer_get_current (b0);
+ udp_hdr0 = (udp_header_t *) (ip0 + 1);
+ gpe_hdr0 = (vxlan_gpe_header_t *) (udp_hdr0 + 1);
+ gpe_ioam0 = (vxlan_gpe_ioam_hdr_t *) (gpe_hdr0 + 1);
+ opt0 = (vxlan_gpe_ioam_option_t *) (gpe_ioam0 + 1);
+ limit0 = (vxlan_gpe_ioam_option_t *) ((u8 *) gpe_ioam0 + gpe_ioam0->length);
+
+ /*
+ * Basic validity checks
+ */
+ if (gpe_ioam0->length > clib_net_to_host_u16 (ip0->length))
+ {
+ next0[0] = VXLAN_GPE_INPUT_NEXT_DROP;
+ goto trace00;
+ }
+
+ /* Scan the set of h-b-h options, process ones that we understand */
+ while (opt0 < limit0)
+ {
+ u8 type0;
+ type0 = opt0->type;
+ switch (type0)
+ {
+ case 0: /* Pad1 */
+ opt0 = (vxlan_gpe_ioam_option_t *) ((u8 *) opt0) + 1;
+ continue;
+ case 1: /* PadN */
+ break;
+ default:
+ if (hm->pop_options[type0])
+ {
+ if ((*hm->pop_options[type0]) (ip0, opt0) < 0)
+ {
+ next0[0] = VXLAN_GPE_INPUT_NEXT_DROP;
+ goto trace00;
+ }
+ }
+ break;
+ }
+ opt0 =
+ (vxlan_gpe_ioam_option_t *) (((u8 *) opt0) + opt0->length +
+ sizeof (vxlan_gpe_ioam_hdr_t));
+ }
+
+
+ next0[0] =
+ (gpe_ioam0->protocol < VXLAN_GPE_PROTOCOL_MAX) ?
+ ngm->
+ decap_next_node_list[gpe_ioam0->protocol] : VXLAN_GPE_INPUT_NEXT_DROP;
+
+trace00:
+ if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ vxlan_gpe_pop_ioam_v4_trace_t *t =
+ vlib_add_trace (vm, node, b0, sizeof (*t));
+ u32 trace_len = gpe_ioam0->length;
+ t->fmt_trace.next_index = next0[0];
+ /* Capture the h-b-h option verbatim */
+ trace_len =
+ trace_len <
+ ARRAY_LEN (t->fmt_trace.
+ option_data) ? trace_len : ARRAY_LEN (t->fmt_trace.
+ option_data);
+ t->fmt_trace.trace_len = trace_len;
+ clib_memcpy (&(t->fmt_trace.option_data), gpe_ioam0, trace_len);
+ }
+
+ /* Remove the iOAM header inside the VxLAN-GPE header */
+ vxlan_gpe_ioam_pop_v4 (vm, node, b0);
+ return;
+}
+
+always_inline void
+vxlan_gpe_pop_ioam_v4_two_inline (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vxlan_gpe_main_t * ngm,
+ vlib_buffer_t * b0, vlib_buffer_t * b1,
+ u32 * next0, u32 * next1)
+{
+
+ vxlan_gpe_pop_ioam_v4_one_inline (vm, node, ngm, b0, next0);
+ vxlan_gpe_pop_ioam_v4_one_inline (vm, node, ngm, b1, next1);
+}
+
+
+
+static uword
+vxlan_gpe_pop_ioam (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame, u8 is_ipv6)
+{
+ u32 n_left_from, next_index, *from, *to_next;
+ vxlan_gpe_main_t *ngm = &vxlan_gpe_main;
+
+ from = vlib_frame_vector_args (from_frame);
+ n_left_from = from_frame->n_vectors;
+
+ next_index = node->cached_next_index;
+
+ while (n_left_from > 0)
+ {
+ u32 n_left_to_next;
+
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
+
+ while (n_left_from >= 4 && n_left_to_next >= 2)
+ {
+ u32 bi0, bi1;
+ vlib_buffer_t *b0, *b1;
+ u32 next0, next1;
+
+ /* Prefetch next iteration. */
+ {
+ vlib_buffer_t *p2, *p3;
+
+ p2 = vlib_get_buffer (vm, from[2]);
+ p3 = vlib_get_buffer (vm, from[3]);
+
+ vlib_prefetch_buffer_header (p2, LOAD);
+ vlib_prefetch_buffer_header (p3, LOAD);
+
+ CLIB_PREFETCH (p2->data, 2 * CLIB_CACHE_LINE_BYTES, LOAD);
+ CLIB_PREFETCH (p3->data, 2 * CLIB_CACHE_LINE_BYTES, LOAD);
+ }
+
+ bi0 = from[0];
+ bi1 = from[1];
+ to_next[0] = bi0;
+ to_next[1] = bi1;
+ from += 2;
+ to_next += 2;
+ n_left_to_next -= 2;
+ n_left_from -= 2;
+
+ b0 = vlib_get_buffer (vm, bi0);
+ b1 = vlib_get_buffer (vm, bi1);
+
+ vxlan_gpe_pop_ioam_v4_two_inline (vm, node, ngm, b0, b1, &next0,
+ &next1);
+
+
+ vlib_validate_buffer_enqueue_x2 (vm, node, next_index, to_next,
+ n_left_to_next, bi0, bi1, next0,
+ next1);
+ }
+
+ while (n_left_from > 0 && n_left_to_next > 0)
+ {
+ u32 bi0;
+ vlib_buffer_t *b0;
+ u32 next0;
+
+ bi0 = from[0];
+ to_next[0] = bi0;
+ from += 1;
+ to_next += 1;
+ n_left_from -= 1;
+ n_left_to_next -= 1;
+
+ b0 = vlib_get_buffer (vm, bi0);
+
+ vxlan_gpe_pop_ioam_v4_one_inline (vm, node, ngm, b0, &next0);
+
+
+ vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
+ n_left_to_next, bi0, next0);
+ }
+
+ vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+ }
+
+ return from_frame->n_vectors;
+}
+
+
+static uword
+vxlan_gpe_pop_ioam_v4 (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * from_frame)
+{
+ return vxlan_gpe_pop_ioam (vm, node, from_frame, 0);
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (vxlan_gpe_pop_ioam_v4_node) = {
+ .function = vxlan_gpe_pop_ioam_v4,
+ .name = "vxlan-gpe-pop-ioam-v4",
+ .vector_size = sizeof (u32),
+ .format_trace = format_vxlan_gpe_pop_ioam_v4_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+
+ .n_errors = ARRAY_LEN(vxlan_gpe_pop_ioam_v4_error_strings),
+ .error_strings = vxlan_gpe_pop_ioam_v4_error_strings,
+
+ .n_next_nodes = VXLAN_GPE_INPUT_N_NEXT,
+
+ .next_nodes = {
+#define _(s,n) [VXLAN_GPE_INPUT_NEXT_##s] = n,
+ foreach_vxlan_gpe_input_next
+#undef _
+ },
+};
+/* *INDENT-ON* */
+
+
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/plugins/ioam/lib-vxlan-gpe/ioam_transit.c b/src/plugins/ioam/lib-vxlan-gpe/ioam_transit.c
new file mode 100644
index 00000000000..b42c357c79b
--- /dev/null
+++ b/src/plugins/ioam/lib-vxlan-gpe/ioam_transit.c
@@ -0,0 +1,188 @@
+ /*
+ * Copyright (c) 2015 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <vppinfra/error.h>
+#include <vppinfra/hash.h>
+#include <vnet/vnet.h>
+#include <vnet/ip/ip.h>
+#include <vnet/ip/udp.h>
+#include <vnet/ethernet/ethernet.h>
+#include <vnet/vxlan-gpe/vxlan_gpe.h>
+#include <ioam/lib-vxlan-gpe/vxlan_gpe_ioam_packet.h>
+#include <ioam/lib-vxlan-gpe/vxlan_gpe_ioam.h>
+#include <ioam/lib-vxlan-gpe/vxlan_gpe_ioam_util.h>
+#include <vnet/fib/ip6_fib.h>
+#include <vnet/fib/ip4_fib.h>
+#include <vnet/fib/fib_entry.h>
+
+/* Statistics (not really errors) */
+#define foreach_vxlan_gpe_transit_ioam_error \
+_(ENCAPSULATED, "good packets encapsulated")
+
+static char *vxlan_gpe_transit_ioam_error_strings[] = {
+#define _(sym,string) string,
+ foreach_vxlan_gpe_transit_ioam_error
+#undef _
+};
+
+typedef enum
+{
+#define _(sym,str) VXLAN_GPE_TRANSIT_IOAM_ERROR_##sym,
+ foreach_vxlan_gpe_transit_ioam_error
+#undef _
+ VXLAN_GPE_TRANSIT_IOAM_N_ERROR,
+} vxlan_gpe_transit_ioam_error_t;
+
+typedef enum
+{
+ VXLAN_GPE_TRANSIT_IOAM_NEXT_OUTPUT,
+ VXLAN_GPE_TRANSIT_IOAM_NEXT_DROP,
+ VXLAN_GPE_TRANSIT_IOAM_N_NEXT
+} vxlan_gpe_transit_ioam_next_t;
+
+
+/* *INDENT-OFF* */
+VNET_FEATURE_INIT (vxlan_gpe_transit_ioam, static) =
+{
+ .arc_name = "ip4-output",
+ .node_name = "vxlan-gpe-transit-ioam",
+ .runs_before = VNET_FEATURES ("interface-output"),
+};
+/* *INDENT-ON* */
+
+static uword
+vxlan_gpe_transit_ioam (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * from_frame)
+{
+ u32 n_left_from, next_index, *from, *to_next;
+
+ from = vlib_frame_vector_args (from_frame);
+ n_left_from = from_frame->n_vectors;
+
+ next_index = node->cached_next_index;
+
+ while (n_left_from > 0)
+ {
+ u32 n_left_to_next;
+
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
+
+
+ while (n_left_from > 0 && n_left_to_next > 0)
+ {
+ u32 bi0;
+ vlib_buffer_t *b0;
+ u32 next0 = VXLAN_GPE_TRANSIT_IOAM_NEXT_OUTPUT;
+
+ bi0 = from[0];
+ to_next[0] = bi0;
+ from += 1;
+ to_next += 1;
+ n_left_from -= 1;
+ n_left_to_next -= 1;
+ ip4_header_t *ip0;
+ u32 iph_offset = 0;
+
+ b0 = vlib_get_buffer (vm, bi0);
+ iph_offset = vnet_buffer (b0)->ip.save_rewrite_length;
+ ip0 = (ip4_header_t *) ((u8 *) vlib_buffer_get_current (b0)
+ + iph_offset);
+
+ /* just forward non ipv4 packets */
+ if (PREDICT_FALSE
+ ((ip0->ip_version_and_header_length & 0xF0) == 0x40))
+ {
+ /* ipv4 packets */
+ udp_header_t *udp_hdr0 = (udp_header_t *) (ip0 + 1);
+ if (PREDICT_FALSE
+ ((ip0->protocol == IP_PROTOCOL_UDP) &&
+ (clib_net_to_host_u16 (udp_hdr0->dst_port) ==
+ UDP_DST_PORT_vxlan_gpe)))
+ {
+
+ /* Check the iOAM header */
+ vxlan_gpe_header_t *gpe_hdr0 =
+ (vxlan_gpe_header_t *) (udp_hdr0 + 1);
+
+ if (PREDICT_FALSE
+ (gpe_hdr0->protocol == VXLAN_GPE_PROTOCOL_IOAM))
+ {
+ uword *t = NULL;
+ vxlan_gpe_ioam_main_t *hm = &vxlan_gpe_ioam_main;
+ fib_prefix_t key4;
+ memset (&key4, 0, sizeof (key4));
+ key4.fp_proto = FIB_PROTOCOL_IP4;
+ key4.fp_addr.ip4.as_u32 = ip0->dst_address.as_u32;
+ t = hash_get_mem (hm->dst_by_ip4, &key4);
+ if (t)
+ {
+
+
+ vlib_buffer_advance (b0,
+ (word) (sizeof
+ (ethernet_header_t)));
+ vxlan_gpe_encap_decap_ioam_v4_one_inline (vm, node,
+ b0,
+ &next0,
+ VXLAN_GPE_TRANSIT_IOAM_NEXT_DROP,
+ 1
+ /* use_adj */
+ );
+ vlib_buffer_advance (b0,
+ -(word) (sizeof
+ (ethernet_header_t)));
+ }
+ }
+ }
+ }
+
+ vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
+ n_left_to_next, bi0, next0);
+ }
+
+ vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+ }
+
+ return from_frame->n_vectors;
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (vxlan_gpe_transit_ioam_node) = {
+ .function = vxlan_gpe_transit_ioam,
+ .name = "vxlan-gpe-transit-ioam",
+ .vector_size = sizeof (u32),
+ .format_trace = format_vxlan_gpe_ioam_v4_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+
+ .n_errors = ARRAY_LEN(vxlan_gpe_transit_ioam_error_strings),
+ .error_strings = vxlan_gpe_transit_ioam_error_strings,
+
+ .n_next_nodes = VXLAN_GPE_TRANSIT_IOAM_N_NEXT,
+
+ .next_nodes = {
+ [VXLAN_GPE_TRANSIT_IOAM_NEXT_OUTPUT] = "interface-output",
+ [VXLAN_GPE_TRANSIT_IOAM_NEXT_DROP] = "error-drop",
+ },
+
+};
+/* *INDENT-ON* */
+
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/plugins/ioam/lib-vxlan-gpe/ioam_vxlan_gpe.api b/src/plugins/ioam/lib-vxlan-gpe/ioam_vxlan_gpe.api
new file mode 100644
index 00000000000..056529a4e8a
--- /dev/null
+++ b/src/plugins/ioam/lib-vxlan-gpe/ioam_vxlan_gpe.api
@@ -0,0 +1,181 @@
+/* Hey Emacs use -*- mode: C -*- */
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+/** \brief iOAM Over VxLAN-GPE - Set iOAM transport for VxLAN-GPE
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param id - profile id
+ @param trace_ppc - Trace PPC (none/encap/decap)
+ @param pow_enable - Proof of Work enabled or not flag
+ @param trace_enable - iOAM Trace enabled or not flag
+
+*/
+define vxlan_gpe_ioam_enable {
+ u32 client_index;
+ u32 context;
+ u16 id;
+ u8 trace_ppc;
+ u8 pow_enable;
+ u8 trace_enable;
+};
+
+/** \brief iOAM Over VxLAN-GPE - Set iOAM transport for VXLAN-GPE reply
+ @param context - sender context, to match reply w/ request
+ @param retval - return value for request
+*/
+define vxlan_gpe_ioam_enable_reply {
+ u32 context;
+ i32 retval;
+};
+
+
+/** \brief iOAM for VxLAN-GPE disable
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param id - profile id
+*/
+define vxlan_gpe_ioam_disable
+{
+ u32 client_index;
+ u32 context;
+ u16 id;
+};
+
+/** \brief vxlan_gpe_ioam disable response
+ @param context - sender context, to match reply w/ request
+ @param retval - return value for request
+*/
+define vxlan_gpe_ioam_disable_reply
+{
+ u32 context;
+ i32 retval;
+};
+
+/** \brief Enable iOAM for a VNI (VXLAN-GPE)
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param vni - VXLAN-GPE VNI
+ @param local - IPv4/6 Address of the local VTEP
+ @param remote - IPv4/6 Address of the remote VTEP
+
+*/
+define vxlan_gpe_ioam_vni_enable {
+ u32 client_index;
+ u32 context;
+ u32 vni;
+ u8 local[16];
+ u8 remote[16];
+ u8 is_ipv6;
+};
+
+/** \brief Reply to enable iOAM for a VNI (VXLAN-GPE)
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param retval - return value for request
+
+*/
+define vxlan_gpe_ioam_vni_enable_reply {
+ u32 client_index;
+ u32 context;
+ i32 retval;
+};
+
+/** \brief Disable iOAM for a VNI (VXLAN-GPE)
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param vni - VXLAN-GPE VNI
+ @param local - IPv4/6 Address of the local VTEP
+ @param remote - IPv4/6 Address of the remote VTEP
+
+*/
+define vxlan_gpe_ioam_vni_disable {
+ u32 client_index;
+ u32 context;
+ u32 vni;
+ u8 local[16];
+ u8 remote[16];
+ u8 is_ipv6;
+};
+
+/** \brief Reply to disable iOAM for a VNI (VXLAN-GPE)
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param retval - return value for request
+
+*/
+define vxlan_gpe_ioam_vni_disable_reply {
+ u32 client_index;
+ u32 context;
+ i32 retval;
+};
+
+
+/** \brief Enable iOAM for a VXLAN-GPE transit
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param dst_addr - IPv4/6 Address of the local VTEP
+ @param outer_fib_index- FIB index
+
+*/
+define vxlan_gpe_ioam_transit_enable {
+ u32 client_index;
+ u32 context;
+ u32 outer_fib_index;
+ u8 dst_addr[16];
+ u8 is_ipv6;
+};
+
+/** \brief Reply to enable iOAM for VXLAN-GPE transit
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param retval - return value for request
+
+*/
+define vxlan_gpe_ioam_transit_enable_reply {
+ u32 client_index;
+ u32 context;
+ i32 retval;
+};
+
+/** \brief Disable iOAM for VXLAN-GPE transit
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param dst_addr - IPv4/6 Address of the local VTEP
+ @param outer_fib_index- FIB index
+
+*/
+define vxlan_gpe_ioam_transit_disable {
+ u32 client_index;
+ u32 context;
+ u32 outer_fib_index;
+ u8 dst_addr[16];
+ u8 is_ipv6;
+};
+
+/** \brief Reply to disable iOAM for VXLAN-GPE transit
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param retval - return value for request
+
+*/
+define vxlan_gpe_ioam_transit_disable_reply {
+ u32 client_index;
+ u32 context;
+ i32 retval;
+};
+
+
diff --git a/src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_all_api_h.h b/src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_all_api_h.h
new file mode 100644
index 00000000000..06fa0d2cd34
--- /dev/null
+++ b/src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_all_api_h.h
@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/* Include the generated file, see BUILT_SOURCES in Makefile.am */
+#include <ioam/lib-vxlan-gpe/ioam_vxlan_gpe.api.h>
diff --git a/src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_api.c b/src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_api.c
new file mode 100644
index 00000000000..68752365f82
--- /dev/null
+++ b/src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_api.c
@@ -0,0 +1,378 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
+ *------------------------------------------------------------------
+ * vxlan_gpe_api.c - iOAM VxLAN-GPE related APIs to create
+ * and maintain profiles
+ *------------------------------------------------------------------
+ */
+
+#include <vnet/vnet.h>
+#include <vnet/plugin/plugin.h>
+#include <ioam/lib-vxlan-gpe/vxlan_gpe_ioam.h>
+
+#include <vlibapi/api.h>
+#include <vlibmemory/api.h>
+#include <vlibsocket/api.h>
+
+/* define message IDs */
+#include <ioam/lib-vxlan-gpe/vxlan_gpe_msg_enum.h>
+
+/* define message structures */
+#define vl_typedefs
+#include <ioam/lib-vxlan-gpe/vxlan_gpe_all_api_h.h>
+#undef vl_typedefs
+
+/* define generated endian-swappers */
+#define vl_endianfun
+#include <ioam/lib-vxlan-gpe/vxlan_gpe_all_api_h.h>
+#undef vl_endianfun
+
+/* instantiate all the print functions we know about */
+#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
+#define vl_printfun
+#include <ioam/lib-vxlan-gpe/vxlan_gpe_all_api_h.h>
+#undef vl_printfun
+
+/* Get the API version number */
+#define vl_api_version(n,v) static u32 api_version=(v);
+#include <ioam/lib-vxlan-gpe/vxlan_gpe_all_api_h.h>
+#undef vl_api_version
+
+/*
+ * A handy macro to set up a message reply.
+ * Assumes that the following variables are available:
+ * mp - pointer to request message
+ * rmp - pointer to reply message type
+ * rv - return value
+ */
+
+#define VXLAN_GPE_REPLY_MACRO(t) \
+do { \
+ unix_shared_memory_queue_t * q = \
+ vl_api_client_index_to_input_queue (mp->client_index); \
+ if (!q) \
+ return; \
+ \
+ rmp = vl_msg_api_alloc (sizeof (*rmp)); \
+ rmp->_vl_msg_id = ntohs((t)+sm->msg_id_base); \
+ rmp->context = mp->context; \
+ rmp->retval = ntohl(rv); \
+ \
+ vl_msg_api_send_shmem (q, (u8 *)&rmp); \
+} while(0);
+
+/* *INDENT-OFF* */
+#define VXLAN_GPE_REPLY_MACRO2(t, body) \
+do { \
+ unix_shared_memory_queue_t * q; \
+ rv = vl_msg_api_pd_handler (mp, rv); \
+ q = vl_api_client_index_to_input_queue (mp->client_index); \
+ if (!q) \
+ return; \
+ \
+ rmp = vl_msg_api_alloc (sizeof (*rmp)); \
+ rmp->_vl_msg_id = ntohs((t)); \
+ rmp->context = mp->context; \
+ rmp->retval = ntohl(rv); \
+ do {body;} while (0); \
+ vl_msg_api_send_shmem (q, (u8 *)&rmp); \
+} while(0);
+/* *INDENT-ON* */
+
+/* List of message types that this plugin understands */
+
+#define foreach_vxlan_gpe_plugin_api_msg \
+_(VXLAN_GPE_IOAM_ENABLE, vxlan_gpe_ioam_enable) \
+_(VXLAN_GPE_IOAM_DISABLE, vxlan_gpe_ioam_disable) \
+_(VXLAN_GPE_IOAM_VNI_ENABLE, vxlan_gpe_ioam_vni_enable) \
+_(VXLAN_GPE_IOAM_VNI_DISABLE, vxlan_gpe_ioam_vni_disable) \
+_(VXLAN_GPE_IOAM_TRANSIT_ENABLE, vxlan_gpe_ioam_transit_enable) \
+_(VXLAN_GPE_IOAM_TRANSIT_DISABLE, vxlan_gpe_ioam_transit_disable) \
+
+
+static void vl_api_vxlan_gpe_ioam_enable_t_handler
+ (vl_api_vxlan_gpe_ioam_enable_t * mp)
+{
+ int rv = 0;
+ vl_api_vxlan_gpe_ioam_enable_reply_t *rmp;
+ clib_error_t *error;
+ vxlan_gpe_ioam_main_t *sm = &vxlan_gpe_ioam_main;
+
+ /* Ignoring the profile id as currently a single profile
+ * is supported */
+ error =
+ vxlan_gpe_ioam_enable (mp->trace_enable, mp->pow_enable, mp->trace_ppc);
+ if (error)
+ {
+ clib_error_report (error);
+ rv = clib_error_get_code (error);
+ }
+
+ VXLAN_GPE_REPLY_MACRO (VL_API_VXLAN_GPE_IOAM_ENABLE_REPLY);
+}
+
+static void vl_api_vxlan_gpe_ioam_disable_t_handler
+ (vl_api_vxlan_gpe_ioam_disable_t * mp)
+{
+ int rv = 0;
+ vl_api_vxlan_gpe_ioam_disable_reply_t *rmp;
+ clib_error_t *error;
+ vxlan_gpe_ioam_main_t *sm = &vxlan_gpe_ioam_main;
+
+ /* Ignoring the profile id as currently a single profile
+ * is supported */
+ error = vxlan_gpe_ioam_disable (0, 0, 0);
+ if (error)
+ {
+ clib_error_report (error);
+ rv = clib_error_get_code (error);
+ }
+
+ VXLAN_GPE_REPLY_MACRO (VL_API_VXLAN_GPE_IOAM_DISABLE_REPLY);
+}
+
+static void vl_api_vxlan_gpe_ioam_vni_enable_t_handler
+ (vl_api_vxlan_gpe_ioam_vni_enable_t * mp)
+{
+ int rv = 0;
+ vl_api_vxlan_gpe_ioam_vni_enable_reply_t *rmp;
+ clib_error_t *error;
+ vxlan_gpe_ioam_main_t *sm = &vxlan_gpe_ioam_main;
+ vxlan4_gpe_tunnel_key_t key4;
+ uword *p = NULL;
+ vxlan_gpe_main_t *gm = &vxlan_gpe_main;
+ vxlan_gpe_tunnel_t *t = 0;
+ vxlan_gpe_ioam_main_t *hm = &vxlan_gpe_ioam_main;
+ u32 vni;
+
+
+ if (!mp->is_ipv6)
+ {
+ clib_memcpy (&key4.local, &mp->local, sizeof (key4.local));
+ clib_memcpy (&key4.remote, &mp->remote, sizeof (key4.remote));
+ vni = clib_net_to_host_u32 (mp->vni);
+ key4.vni = clib_host_to_net_u32 (vni << 8);
+ key4.pad = 0;
+
+ p = hash_get_mem (gm->vxlan4_gpe_tunnel_by_key, &key4);
+ }
+ else
+ {
+ return;
+ }
+
+ if (!p)
+ return;
+
+ t = pool_elt_at_index (gm->tunnels, p[0]);
+
+ error = vxlan_gpe_ioam_set (t, hm->has_trace_option,
+ hm->has_pot_option,
+ hm->has_ppc_option, mp->is_ipv6);
+
+
+ if (error)
+ {
+ clib_error_report (error);
+ rv = clib_error_get_code (error);
+ }
+
+ VXLAN_GPE_REPLY_MACRO (VL_API_VXLAN_GPE_IOAM_VNI_ENABLE_REPLY);
+}
+
+
+static void vl_api_vxlan_gpe_ioam_vni_disable_t_handler
+ (vl_api_vxlan_gpe_ioam_vni_disable_t * mp)
+{
+ int rv = 0;
+ vl_api_vxlan_gpe_ioam_vni_enable_reply_t *rmp;
+ clib_error_t *error;
+ vxlan_gpe_ioam_main_t *sm = &vxlan_gpe_ioam_main;
+ vxlan4_gpe_tunnel_key_t key4;
+ uword *p = NULL;
+ vxlan_gpe_main_t *gm = &vxlan_gpe_main;
+ vxlan_gpe_tunnel_t *t = 0;
+ u32 vni;
+
+
+ if (!mp->is_ipv6)
+ {
+ clib_memcpy (&key4.local, &mp->local, sizeof (key4.local));
+ clib_memcpy (&key4.remote, &mp->remote, sizeof (key4.remote));
+ vni = clib_net_to_host_u32 (mp->vni);
+ key4.vni = clib_host_to_net_u32 (vni << 8);
+ key4.pad = 0;
+
+ p = hash_get_mem (gm->vxlan4_gpe_tunnel_by_key, &key4);
+ }
+ else
+ {
+ return;
+ }
+
+ if (!p)
+ return;
+
+ t = pool_elt_at_index (gm->tunnels, p[0]);
+
+ error = vxlan_gpe_ioam_clear (t, 0, 0, 0, 0);
+
+
+ if (error)
+ {
+ clib_error_report (error);
+ rv = clib_error_get_code (error);
+ }
+
+
+ VXLAN_GPE_REPLY_MACRO (VL_API_VXLAN_GPE_IOAM_VNI_DISABLE_REPLY);
+}
+
+static void vl_api_vxlan_gpe_ioam_transit_enable_t_handler
+ (vl_api_vxlan_gpe_ioam_transit_enable_t * mp)
+{
+ int rv = 0;
+ vl_api_vxlan_gpe_ioam_transit_enable_reply_t *rmp;
+ vxlan_gpe_ioam_main_t *sm = &vxlan_gpe_ioam_main;
+ ip46_address_t dst_addr;
+
+ memset (&dst_addr.ip4, 0, sizeof (dst_addr.ip4));
+ if (!mp->is_ipv6)
+ {
+ clib_memcpy (&dst_addr.ip4, &mp->dst_addr, sizeof (dst_addr.ip4));
+ }
+ rv = vxlan_gpe_enable_disable_ioam_for_dest (sm->vlib_main,
+ dst_addr,
+ ntohl (mp->outer_fib_index),
+ mp->is_ipv6 ? 0 : 1,
+ 1 /* is_add */ );
+
+ VXLAN_GPE_REPLY_MACRO (VL_API_VXLAN_GPE_IOAM_TRANSIT_ENABLE_REPLY);
+}
+
+static void vl_api_vxlan_gpe_ioam_transit_disable_t_handler
+ (vl_api_vxlan_gpe_ioam_transit_disable_t * mp)
+{
+ int rv = 0;
+ vl_api_vxlan_gpe_ioam_transit_disable_reply_t *rmp;
+ vxlan_gpe_ioam_main_t *sm = &vxlan_gpe_ioam_main;
+ ip46_address_t dst_addr;
+
+ memset (&dst_addr.ip4, 0, sizeof (dst_addr.ip4));
+ if (!mp->is_ipv6)
+ {
+ clib_memcpy (&dst_addr.ip4, &mp->dst_addr, sizeof (dst_addr.ip4));
+ }
+
+ rv = vxlan_gpe_ioam_disable_for_dest (sm->vlib_main,
+ dst_addr,
+ ntohl (mp->outer_fib_index),
+ mp->is_ipv6 ? 0 : 1);
+ VXLAN_GPE_REPLY_MACRO (VL_API_VXLAN_GPE_IOAM_TRANSIT_DISABLE_REPLY);
+}
+
+
+/*
+ * This routine exists to convince the vlib plugin framework that
+ * we haven't accidentally copied a random .dll into the plugin directory.
+ *
+ * Also collects global variable pointers passed from the vpp engine
+ */
+
+clib_error_t *
+vlib_plugin_register (vlib_main_t * vm, vnet_plugin_handoff_t * h,
+ int from_early_init)
+{
+ vxlan_gpe_ioam_main_t *sm = &vxlan_gpe_ioam_main;
+ clib_error_t *error = 0;
+
+ sm->vlib_main = vm;
+ sm->vnet_main = h->vnet_main;
+ sm->unix_time_0 = (u32) time (0); /* Store starting time */
+ sm->vlib_time_0 = vlib_time_now (vm);
+ return error;
+}
+
+/* Set up the API message handling tables */
+static clib_error_t *
+vxlan_gpe_plugin_api_hookup (vlib_main_t * vm)
+{
+ vxlan_gpe_ioam_main_t *sm = &vxlan_gpe_ioam_main;
+#define _(N,n) \
+ vl_msg_api_set_handlers((VL_API_##N + sm->msg_id_base), \
+ #n, \
+ vl_api_##n##_t_handler, \
+ vl_noop_handler, \
+ vl_api_##n##_t_endian, \
+ vl_api_##n##_t_print, \
+ sizeof(vl_api_##n##_t), 1);
+ foreach_vxlan_gpe_plugin_api_msg;
+#undef _
+
+ return 0;
+}
+
+static clib_error_t *
+vxlan_gpe_init (vlib_main_t * vm)
+{
+ vxlan_gpe_ioam_main_t *sm = &vxlan_gpe_ioam_main;
+ clib_error_t *error = 0;
+ u8 *name;
+ u32 encap_node_index = vxlan_gpe_encap_ioam_v4_node.index;
+ u32 decap_node_index = vxlan_gpe_decap_ioam_v4_node.index;
+ vlib_node_t *vxlan_gpe_encap_node = NULL;
+ vlib_node_t *vxlan_gpe_decap_node = NULL;
+ uword next_node = 0;
+
+ name = format (0, "ioam_vxlan_gpe_%08x%c", api_version, 0);
+
+ /* Ask for a correctly-sized block of API message decode slots */
+ sm->msg_id_base = vl_msg_api_get_msg_ids
+ ((char *) name, VL_MSG_FIRST_AVAILABLE);
+
+ error = vxlan_gpe_plugin_api_hookup (vm);
+
+ /* Hook the ioam-encap node to vxlan-gpe-encap */
+ vxlan_gpe_encap_node = vlib_get_node_by_name (vm, (u8 *) "vxlan-gpe-encap");
+ sm->encap_v4_next_node =
+ vlib_node_add_next (vm, vxlan_gpe_encap_node->index, encap_node_index);
+
+ vxlan_gpe_decap_node =
+ vlib_get_node_by_name (vm, (u8 *) "vxlan4-gpe-input");
+ next_node =
+ vlib_node_add_next (vm, vxlan_gpe_decap_node->index, decap_node_index);
+ vxlan_gpe_register_decap_protocol (VXLAN_GPE_PROTOCOL_IOAM, next_node);
+
+ vec_new (vxlan_gpe_ioam_sw_interface_t, pool_elts (sm->sw_interfaces));
+ sm->dst_by_ip4 = hash_create_mem (0, sizeof (fib_prefix_t), sizeof (uword));
+
+ sm->dst_by_ip6 = hash_create_mem (0, sizeof (fib_prefix_t), sizeof (uword));
+
+ vxlan_gpe_ioam_interface_init ();
+ vec_free (name);
+
+ return error;
+}
+
+VLIB_INIT_FUNCTION (vxlan_gpe_init);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_ioam.c b/src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_ioam.c
new file mode 100644
index 00000000000..6c04d9af210
--- /dev/null
+++ b/src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_ioam.c
@@ -0,0 +1,773 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <vnet/vxlan-gpe/vxlan_gpe.h>
+#include <vnet/vxlan-gpe/vxlan_gpe_packet.h>
+#include <vnet/ip/format.h>
+#include <ioam/lib-vxlan-gpe/vxlan_gpe_ioam.h>
+#include <vnet/fib/ip6_fib.h>
+#include <vnet/fib/ip4_fib.h>
+#include <vnet/fib/fib_entry.h>
+
+vxlan_gpe_ioam_main_t vxlan_gpe_ioam_main;
+
+int
+vxlan_gpe_ioam_set_rewrite (vxlan_gpe_tunnel_t * t, int has_trace_option,
+ int has_pot_option, int has_ppc_option,
+ u8 ipv6_set)
+{
+ vxlan_gpe_ioam_main_t *hm = &vxlan_gpe_ioam_main;
+ u32 size;
+ vxlan_gpe_ioam_hdr_t *vxlan_gpe_ioam_hdr;
+ u8 *current;
+ u8 trace_data_size = 0;
+ u8 pot_data_size = 0;
+
+ if (has_trace_option == 0 && has_pot_option == 0)
+ return -1;
+
+ /* Work out how much space we need */
+ size = sizeof (vxlan_gpe_ioam_hdr_t);
+
+ if (has_trace_option
+ && hm->add_options[VXLAN_GPE_OPTION_TYPE_IOAM_TRACE] != 0)
+ {
+ size += sizeof (vxlan_gpe_ioam_option_t);
+ size += hm->options_size[VXLAN_GPE_OPTION_TYPE_IOAM_TRACE];
+ }
+ if (has_pot_option
+ && hm->add_options[VXLAN_GPE_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT] != 0)
+ {
+ size += sizeof (vxlan_gpe_ioam_option_t);
+ size += hm->options_size[VXLAN_GPE_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT];
+ }
+
+ t->rewrite_size = size;
+
+ if (!ipv6_set)
+ {
+ vxlan4_gpe_rewrite (t, size, VXLAN_GPE_PROTOCOL_IOAM,
+ hm->encap_v4_next_node);
+ vxlan_gpe_ioam_hdr =
+ (vxlan_gpe_ioam_hdr_t *) (t->rewrite +
+ sizeof (ip4_vxlan_gpe_header_t));
+ }
+ else
+ {
+ vxlan6_gpe_rewrite (t, size, VXLAN_GPE_PROTOCOL_IOAM,
+ VXLAN_GPE_ENCAP_NEXT_IP6_LOOKUP);
+ vxlan_gpe_ioam_hdr =
+ (vxlan_gpe_ioam_hdr_t *) (t->rewrite +
+ sizeof (ip6_vxlan_gpe_header_t));
+ }
+
+
+ vxlan_gpe_ioam_hdr->type = VXLAN_GPE_PROTOCOL_IOAM;
+ /* Length of the header in octets */
+ vxlan_gpe_ioam_hdr->length = size;
+ vxlan_gpe_ioam_hdr->protocol = t->protocol;
+ current = (u8 *) vxlan_gpe_ioam_hdr + sizeof (vxlan_gpe_ioam_hdr_t);
+
+ if (has_trace_option
+ && hm->add_options[VXLAN_GPE_OPTION_TYPE_IOAM_TRACE] != 0)
+ {
+ if (0 != hm->add_options[VXLAN_GPE_OPTION_TYPE_IOAM_TRACE] (current,
+ &trace_data_size))
+ return -1;
+ current += trace_data_size;
+ }
+ if (has_pot_option
+ && hm->add_options[VXLAN_GPE_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT] != 0)
+ {
+ pot_data_size =
+ hm->options_size[VXLAN_GPE_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT];
+ if (0 ==
+ hm->add_options[VXLAN_GPE_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT]
+ (current, &pot_data_size))
+ current += pot_data_size;
+ }
+
+ return 0;
+}
+
+int
+vxlan_gpe_ioam_clear_rewrite (vxlan_gpe_tunnel_t * t, int has_trace_option,
+ int has_pot_option, int has_ppc_option,
+ u8 ipv6_set)
+{
+
+ t->rewrite_size = 0;
+
+ if (!ipv6_set)
+ {
+ vxlan4_gpe_rewrite (t, 0, 0, VXLAN_GPE_ENCAP_NEXT_IP4_LOOKUP);
+ }
+ else
+ {
+ vxlan6_gpe_rewrite (t, 0, 0, VXLAN_GPE_ENCAP_NEXT_IP6_LOOKUP);
+ }
+
+
+ return 0;
+}
+
+clib_error_t *
+vxlan_gpe_ioam_clear (vxlan_gpe_tunnel_t * t,
+ int has_trace_option, int has_pot_option,
+ int has_ppc_option, u8 ipv6_set)
+{
+ int rv;
+ rv = vxlan_gpe_ioam_clear_rewrite (t, 0, 0, 0, 0);
+
+ if (rv == 0)
+ {
+ return (0);
+ }
+ else
+ {
+ return clib_error_return_code (0, rv, 0,
+ "vxlan_gpe_ioam_clear_rewrite returned %d",
+ rv);
+ }
+
+}
+
+
+clib_error_t *
+vxlan_gpe_ioam_set (vxlan_gpe_tunnel_t * t,
+ int has_trace_option, int has_pot_option,
+ int has_ppc_option, u8 ipv6_set)
+{
+ int rv;
+ rv = vxlan_gpe_ioam_set_rewrite (t, has_trace_option,
+ has_pot_option, has_ppc_option, ipv6_set);
+
+ if (rv == 0)
+ {
+ return (0);
+ }
+ else
+ {
+ return clib_error_return_code (0, rv, 0,
+ "vxlan_gpe_ioam_set_rewrite returned %d",
+ rv);
+ }
+
+}
+
+static void
+vxlan_gpe_set_clear_output_feature_on_intf (vlib_main_t * vm,
+ u32 sw_if_index0, u8 is_add)
+{
+
+
+
+ vnet_feature_enable_disable ("ip4-output", "vxlan-gpe-transit-ioam",
+ sw_if_index0, is_add,
+ 0 /* void *feature_config */ ,
+ 0 /* u32 n_feature_config_bytes */ );
+ return;
+}
+
+void
+vxlan_gpe_clear_output_feature_on_all_intfs (vlib_main_t * vm)
+{
+ vnet_sw_interface_t *si = 0;
+ vnet_main_t *vnm = vnet_get_main ();
+ vnet_interface_main_t *im = &vnm->interface_main;
+
+ pool_foreach (si, im->sw_interfaces, (
+ {
+ vxlan_gpe_set_clear_output_feature_on_intf
+ (vm, si->sw_if_index, 0);
+ }));
+ return;
+}
+
+
+extern fib_forward_chain_type_t
+fib_entry_get_default_chain_type (const fib_entry_t * fib_entry);
+
+int
+vxlan_gpe_enable_disable_ioam_for_dest (vlib_main_t * vm,
+ ip46_address_t dst_addr,
+ u32 outer_fib_index,
+ u8 is_ipv4, u8 is_add)
+{
+ vxlan_gpe_ioam_main_t *hm = &vxlan_gpe_ioam_main;
+ u32 fib_index0 = 0;
+ u32 sw_if_index0 = ~0;
+
+ fib_node_index_t fei = ~0;
+ fib_entry_t *fib_entry;
+ u32 adj_index0;
+ ip_adjacency_t *adj0;
+ fib_prefix_t fib_prefix;
+ //fib_forward_chain_type_t fct;
+ load_balance_t *lb_m, *lb_b;
+ const dpo_id_t *dpo0, *dpo1;
+ u32 i, j;
+ //vnet_hw_interface_t *hw;
+
+ if (is_ipv4)
+ {
+ memset (&fib_prefix, 0, sizeof (fib_prefix_t));
+ fib_prefix.fp_len = 32;
+ fib_prefix.fp_proto = FIB_PROTOCOL_IP4;
+ fib_prefix.fp_addr = dst_addr;
+ }
+ else
+ {
+ return 0;
+ }
+
+ fei = fib_table_lookup (fib_index0, &fib_prefix);
+ fib_entry = fib_entry_get (fei);
+
+ //fct = fib_entry_get_default_chain_type (fib_entry);
+
+ if (!dpo_id_is_valid (&fib_entry->fe_lb /*[fct] */ ))
+ {
+ return (-1);
+ }
+
+ lb_m = load_balance_get (fib_entry->fe_lb /*[fct] */ .dpoi_index);
+
+ for (i = 0; i < lb_m->lb_n_buckets; i++)
+ {
+ dpo0 = load_balance_get_bucket_i (lb_m, i);
+
+ if (dpo0->dpoi_type == DPO_LOAD_BALANCE)
+ {
+ lb_b = load_balance_get (dpo0->dpoi_index);
+
+ for (j = 0; j < lb_b->lb_n_buckets; j++)
+ {
+ dpo1 = load_balance_get_bucket_i (lb_b, j);
+
+ if (dpo1->dpoi_type == DPO_ADJACENCY)
+ {
+ adj_index0 = dpo1->dpoi_index;
+
+ if (ADJ_INDEX_INVALID == adj_index0)
+ {
+ continue;
+ }
+
+ adj0 =
+ ip_get_adjacency (&(ip4_main.lookup_main), adj_index0);
+ sw_if_index0 = adj0->rewrite_header.sw_if_index;
+
+ if (~0 == sw_if_index0)
+ {
+ continue;
+ }
+
+
+ if (is_add)
+ {
+ vnet_feature_enable_disable ("ip4-output",
+ "vxlan-gpe-transit-ioam",
+ sw_if_index0, is_add, 0
+ /* void *feature_config */
+ , 0 /* u32 n_feature_config_bytes */
+ );
+
+ vec_validate_init_empty (hm->bool_ref_by_sw_if_index,
+ sw_if_index0, ~0);
+ hm->bool_ref_by_sw_if_index[sw_if_index0] = 1;
+ }
+ else
+ {
+ hm->bool_ref_by_sw_if_index[sw_if_index0] = ~0;
+ }
+ }
+ }
+ }
+ }
+
+ if (is_ipv4)
+ {
+
+ uword *t = NULL;
+ vxlan_gpe_ioam_dest_tunnels_t *t1;
+ fib_prefix_t key4, *key4_copy;
+ hash_pair_t *hp;
+ memset (&key4, 0, sizeof (key4));
+ key4.fp_proto = FIB_PROTOCOL_IP4;
+ key4.fp_addr.ip4.as_u32 = fib_prefix.fp_addr.ip4.as_u32;
+ t = hash_get_mem (hm->dst_by_ip4, &key4);
+ if (is_add)
+ {
+ if (t)
+ {
+ return 0;
+ }
+ pool_get_aligned (hm->dst_tunnels, t1, CLIB_CACHE_LINE_BYTES);
+ memset (t1, 0, sizeof (*t1));
+ t1->fp_proto = FIB_PROTOCOL_IP4;
+ t1->dst_addr.ip4.as_u32 = fib_prefix.fp_addr.ip4.as_u32;
+ key4_copy = clib_mem_alloc (sizeof (*key4_copy));
+ clib_memcpy (key4_copy, &key4, sizeof (*key4_copy));
+ hash_set_mem (hm->dst_by_ip4, key4_copy, t1 - hm->dst_tunnels);
+ /*
+ * Attach to the FIB entry for the VxLAN-GPE destination
+ * and become its child. The dest route will invoke a callback
+ * when the fib entry changes, it can be used to
+ * re-program the output feature on the egress interface.
+ */
+
+ const fib_prefix_t tun_dst_pfx = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {.ip4 = t1->dst_addr.ip4,}
+ };
+
+ t1->fib_entry_index =
+ fib_table_entry_special_add (outer_fib_index,
+ &tun_dst_pfx,
+ FIB_SOURCE_RR,
+ FIB_ENTRY_FLAG_NONE,
+ ADJ_INDEX_INVALID);
+ t1->sibling_index =
+ fib_entry_child_add (t1->fib_entry_index,
+ hm->fib_entry_type, t1 - hm->dst_tunnels);
+ t1->outer_fib_index = outer_fib_index;
+
+ }
+ else
+ {
+ if (!t)
+ {
+ return 0;
+ }
+ t1 = pool_elt_at_index (hm->dst_tunnels, t[0]);
+ hp = hash_get_pair (hm->dst_by_ip4, &key4);
+ key4_copy = (void *) (hp->key);
+ hash_unset_mem (hm->dst_by_ip4, &key4);
+ clib_mem_free (key4_copy);
+ pool_put (hm->dst_tunnels, t1);
+ }
+ }
+ else
+ {
+ // TBD for IPv6
+ }
+
+ return 0;
+}
+
+void
+vxlan_gpe_refresh_output_feature_on_all_dest (void)
+{
+ vxlan_gpe_ioam_main_t *hm = &vxlan_gpe_ioam_main;
+ vxlan_gpe_ioam_dest_tunnels_t *t;
+ u32 i;
+ if (pool_elts (hm->dst_tunnels) == 0)
+ return;
+ vxlan_gpe_clear_output_feature_on_all_intfs (hm->vlib_main);
+ i = vec_len (hm->bool_ref_by_sw_if_index);
+ vec_free (hm->bool_ref_by_sw_if_index);
+ vec_validate_init_empty (hm->bool_ref_by_sw_if_index, i, ~0);
+ pool_foreach (t, hm->dst_tunnels, (
+ {
+ vxlan_gpe_enable_disable_ioam_for_dest
+ (hm->vlib_main,
+ t->dst_addr,
+ t->outer_fib_index,
+ (t->fp_proto == FIB_PROTOCOL_IP4), 1
+ /* is_add */
+ );
+ }
+ ));
+ return;
+}
+
+void
+vxlan_gpe_clear_output_feature_on_select_intfs (void)
+{
+ vxlan_gpe_ioam_main_t *hm = &vxlan_gpe_ioam_main;
+ u32 sw_if_index0 = 0;
+ for (sw_if_index0 = 0;
+ sw_if_index0 < vec_len (hm->bool_ref_by_sw_if_index); sw_if_index0++)
+ {
+ if (hm->bool_ref_by_sw_if_index[sw_if_index0] == 0xFF)
+ {
+ vxlan_gpe_set_clear_output_feature_on_intf
+ (hm->vlib_main, sw_if_index0, 0);
+ }
+ }
+
+ return;
+}
+
+static clib_error_t *
+vxlan_gpe_set_ioam_rewrite_command_fn (vlib_main_t *
+ vm,
+ unformat_input_t
+ * input, vlib_cli_command_t * cmd)
+{
+ vxlan_gpe_ioam_main_t *hm = &vxlan_gpe_ioam_main;
+ ip46_address_t local, remote;
+ u8 local_set = 0;
+ u8 remote_set = 0;
+ u8 ipv4_set = 0;
+ u8 ipv6_set = 0;
+ u32 vni;
+ u8 vni_set = 0;
+ u8 disable = 0;
+ clib_error_t *rv = 0;
+ vxlan4_gpe_tunnel_key_t key4;
+ vxlan6_gpe_tunnel_key_t key6;
+ uword *p;
+ vxlan_gpe_main_t *gm = &vxlan_gpe_main;
+ vxlan_gpe_tunnel_t *t = 0;
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "local %U", unformat_ip4_address, &local.ip4))
+ {
+ local_set = 1;
+ ipv4_set = 1;
+ }
+ else
+ if (unformat (input, "remote %U", unformat_ip4_address, &remote.ip4))
+ {
+ remote_set = 1;
+ ipv4_set = 1;
+ }
+ else if (unformat (input, "local %U", unformat_ip6_address, &local.ip6))
+ {
+ local_set = 1;
+ ipv6_set = 1;
+ }
+ else
+ if (unformat (input, "remote %U", unformat_ip6_address, &remote.ip6))
+ {
+ remote_set = 1;
+ ipv6_set = 1;
+ }
+ else if (unformat (input, "vni %d", &vni))
+ vni_set = 1;
+ else if (unformat (input, "disable"))
+ disable = 1;
+ else
+ break;
+ }
+
+ if (local_set == 0)
+ return clib_error_return (0, "tunnel local address not specified");
+ if (remote_set == 0)
+ return clib_error_return (0, "tunnel remote address not specified");
+ if (ipv4_set && ipv6_set)
+ return clib_error_return (0, "both IPv4 and IPv6 addresses specified");
+ if ((ipv4_set
+ && memcmp (&local.ip4, &remote.ip4,
+ sizeof (local.ip4)) == 0) || (ipv6_set
+ &&
+ memcmp
+ (&local.ip6,
+ &remote.ip6,
+ sizeof (local.ip6)) == 0))
+ return clib_error_return (0, "src and dst addresses are identical");
+ if (vni_set == 0)
+ return clib_error_return (0, "vni not specified");
+ if (!ipv6_set)
+ {
+ key4.local = local.ip4.as_u32;
+ key4.remote = remote.ip4.as_u32;
+ key4.vni = clib_host_to_net_u32 (vni << 8);
+ key4.pad = 0;
+ p = hash_get_mem (gm->vxlan4_gpe_tunnel_by_key, &key4);
+ }
+ else
+ {
+ key6.local.as_u64[0] = local.ip6.as_u64[0];
+ key6.local.as_u64[1] = local.ip6.as_u64[1];
+ key6.remote.as_u64[0] = remote.ip6.as_u64[0];
+ key6.remote.as_u64[1] = remote.ip6.as_u64[1];
+ key6.vni = clib_host_to_net_u32 (vni << 8);
+ p = hash_get_mem (gm->vxlan6_gpe_tunnel_by_key, &key6);
+ }
+
+ if (!p)
+ return clib_error_return (0, "VxLAN Tunnel not found");
+ t = pool_elt_at_index (gm->tunnels, p[0]);
+ if (!disable)
+ {
+ rv =
+ vxlan_gpe_ioam_set (t, hm->has_trace_option,
+ hm->has_pot_option, hm->has_ppc_option, ipv6_set);
+ }
+ else
+ {
+ rv = vxlan_gpe_ioam_clear (t, 0, 0, 0, 0);
+ }
+ return rv;
+}
+
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (vxlan_gpe_set_ioam_rewrite_cmd, static) = {
+ .path = "set vxlan-gpe-ioam",
+ .short_help = "set vxlan-gpe-ioam vxlan <src-ip> <dst_ip> <vnid> [disable]",
+ .function = vxlan_gpe_set_ioam_rewrite_command_fn,
+};
+/* *INDENT-ON* */
+
+
+
+clib_error_t *
+vxlan_gpe_ioam_enable (int has_trace_option,
+ int has_pot_option, int has_ppc_option)
+{
+ vxlan_gpe_ioam_main_t *hm = &vxlan_gpe_ioam_main;
+ hm->has_trace_option = has_trace_option;
+ hm->has_pot_option = has_pot_option;
+ hm->has_ppc_option = has_ppc_option;
+ if (hm->has_trace_option)
+ {
+ vxlan_gpe_trace_profile_setup ();
+ }
+
+ return 0;
+}
+
+clib_error_t *
+vxlan_gpe_ioam_disable (int
+ has_trace_option,
+ int has_pot_option, int has_ppc_option)
+{
+ vxlan_gpe_ioam_main_t *hm = &vxlan_gpe_ioam_main;
+ hm->has_trace_option = has_trace_option;
+ hm->has_pot_option = has_pot_option;
+ hm->has_ppc_option = has_ppc_option;
+ if (!hm->has_trace_option)
+ {
+ vxlan_gpe_trace_profile_cleanup ();
+ }
+
+ return 0;
+}
+
+void
+vxlan_gpe_set_next_override (uword next)
+{
+ vxlan_gpe_ioam_main_t *hm = &vxlan_gpe_ioam_main;
+ hm->decap_v4_next_override = next;
+ return;
+}
+
+static clib_error_t *
+vxlan_gpe_set_ioam_flags_command_fn (vlib_main_t * vm,
+ unformat_input_t
+ * input, vlib_cli_command_t * cmd)
+{
+ int has_trace_option = 0;
+ int has_pot_option = 0;
+ int has_ppc_option = 0;
+ clib_error_t *rv = 0;
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "trace"))
+ has_trace_option = 1;
+ else if (unformat (input, "pot"))
+ has_pot_option = 1;
+ else if (unformat (input, "ppc encap"))
+ has_ppc_option = PPC_ENCAP;
+ else if (unformat (input, "ppc decap"))
+ has_ppc_option = PPC_DECAP;
+ else if (unformat (input, "ppc none"))
+ has_ppc_option = PPC_NONE;
+ else
+ break;
+ }
+
+
+ rv =
+ vxlan_gpe_ioam_enable (has_trace_option, has_pot_option, has_ppc_option);
+ return rv;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (vxlan_gpe_set_ioam_flags_cmd, static) =
+{
+.path = "set vxlan-gpe-ioam rewrite",
+.short_help = "set vxlan-gpe-ioam [trace] [pot] [ppc <encap|decap>]",
+.function = vxlan_gpe_set_ioam_flags_command_fn,};
+/* *INDENT-ON* */
+
+
+int vxlan_gpe_ioam_disable_for_dest
+ (vlib_main_t * vm, ip46_address_t dst_addr, u32 outer_fib_index,
+ u8 ipv4_set)
+{
+ vxlan_gpe_ioam_dest_tunnels_t *t;
+ vxlan_gpe_ioam_main_t *hm = &vxlan_gpe_ioam_main;
+
+ vxlan_gpe_enable_disable_ioam_for_dest (hm->vlib_main,
+ dst_addr, outer_fib_index, ipv4_set,
+ 0);
+ if (pool_elts (hm->dst_tunnels) == 0)
+ {
+ vxlan_gpe_clear_output_feature_on_select_intfs ();
+ return 0;
+ }
+
+ pool_foreach (t, hm->dst_tunnels, (
+ {
+ vxlan_gpe_enable_disable_ioam_for_dest
+ (hm->vlib_main,
+ t->dst_addr,
+ t->outer_fib_index,
+ (t->fp_proto ==
+ FIB_PROTOCOL_IP4), 1 /* is_add */ );
+ }
+ ));
+ vxlan_gpe_clear_output_feature_on_select_intfs ();
+ return (0);
+
+}
+
+static clib_error_t *vxlan_gpe_set_ioam_transit_rewrite_command_fn
+ (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ vxlan_gpe_ioam_main_t *hm = &vxlan_gpe_ioam_main;
+ ip46_address_t dst_addr;
+ u8 dst_addr_set = 0;
+ u8 ipv4_set = 0;
+ u8 ipv6_set = 0;
+ u8 disable = 0;
+ clib_error_t *rv = 0;
+ u32 outer_fib_index = 0;
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "dst-ip %U", unformat_ip4_address, &dst_addr.ip4))
+ {
+ dst_addr_set = 1;
+ ipv4_set = 1;
+ }
+ else
+ if (unformat
+ (input, "dst-ip %U", unformat_ip6_address, &dst_addr.ip6))
+ {
+ dst_addr_set = 1;
+ ipv6_set = 1;
+ }
+ else if (unformat (input, "outer-fib-index %d", &outer_fib_index))
+ {
+ }
+
+ else if (unformat (input, "disable"))
+ disable = 1;
+ else
+ break;
+ }
+
+ if (dst_addr_set == 0)
+ return clib_error_return (0, "tunnel destination address not specified");
+ if (ipv4_set && ipv6_set)
+ return clib_error_return (0, "both IPv4 and IPv6 addresses specified");
+ if (!disable)
+ {
+ vxlan_gpe_enable_disable_ioam_for_dest (hm->vlib_main,
+ dst_addr, outer_fib_index,
+ ipv4_set, 1);
+ }
+ else
+ {
+ vxlan_gpe_ioam_disable_for_dest
+ (vm, dst_addr, outer_fib_index, ipv4_set);
+ }
+ return rv;
+}
+
+ /* *INDENT-OFF* */
+VLIB_CLI_COMMAND (vxlan_gpe_set_ioam_transit_rewrite_cmd, static) = {
+ .path = "set vxlan-gpe-ioam-transit",
+ .short_help = "set vxlan-gpe-ioam-transit dst-ip <dst_ip> [outer-fib-index <outer_fib_index>] [disable]",
+ .function = vxlan_gpe_set_ioam_transit_rewrite_command_fn,
+};
+/* *INDENT-ON* */
+
+clib_error_t *clear_vxlan_gpe_ioam_rewrite_command_fn
+ (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ return (vxlan_gpe_ioam_disable (0, 0, 0));
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (vxlan_gpe_clear_ioam_flags_cmd, static) =
+{
+.path = "clear vxlan-gpe-ioam rewrite",
+.short_help = "clear vxlan-gpe-ioam rewrite",
+.function = clear_vxlan_gpe_ioam_rewrite_command_fn,
+};
+/* *INDENT-ON* */
+
+
+/**
+ * Function definition to backwalk a FIB node
+ */
+static fib_node_back_walk_rc_t
+vxlan_gpe_ioam_back_walk (fib_node_t * node, fib_node_back_walk_ctx_t * ctx)
+{
+ vxlan_gpe_refresh_output_feature_on_all_dest ();
+ return (FIB_NODE_BACK_WALK_CONTINUE);
+}
+
+/**
+ * Function definition to get a FIB node from its index
+ */
+static fib_node_t *
+vxlan_gpe_ioam_fib_node_get (fib_node_index_t index)
+{
+ vxlan_gpe_ioam_main_t *hm = &vxlan_gpe_ioam_main;
+ return (&hm->node);
+}
+
+/**
+ * Function definition to inform the FIB node that its last lock has gone.
+ */
+static void
+vxlan_gpe_ioam_last_lock_gone (fib_node_t * node)
+{
+ ASSERT (0);
+}
+
+
+/*
+ * Virtual function table registered by MPLS GRE tunnels
+ * for participation in the FIB object graph.
+ */
+const static fib_node_vft_t vxlan_gpe_ioam_vft = {
+ .fnv_get = vxlan_gpe_ioam_fib_node_get,
+ .fnv_last_lock = vxlan_gpe_ioam_last_lock_gone,
+ .fnv_back_walk = vxlan_gpe_ioam_back_walk,
+};
+
+void
+vxlan_gpe_ioam_interface_init (void)
+{
+ vxlan_gpe_ioam_main_t *hm = &vxlan_gpe_ioam_main;
+ hm->fib_entry_type = fib_node_register_new_type (&vxlan_gpe_ioam_vft);
+ return;
+}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_ioam.h b/src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_ioam.h
new file mode 100644
index 00000000000..0711b87abbe
--- /dev/null
+++ b/src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_ioam.h
@@ -0,0 +1,183 @@
+/*
+ * Copyright (c) 2015 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef __included_vxlan_gpe_ioam_h__
+#define __included_vxlan_gpe_ioam_h__
+
+#include <vnet/vxlan-gpe/vxlan_gpe.h>
+#include <vnet/vxlan-gpe/vxlan_gpe_packet.h>
+#include <ioam/lib-vxlan-gpe/vxlan_gpe_ioam_packet.h>
+#include <vnet/ip/ip.h>
+
+
+typedef struct vxlan_gpe_sw_interface_
+{
+ u32 sw_if_index;
+} vxlan_gpe_ioam_sw_interface_t;
+
+typedef struct vxlan_gpe_dest_tunnels_
+{
+ ip46_address_t dst_addr;
+ u32 fp_proto;
+ u32 sibling_index;
+ fib_node_index_t fib_entry_index;
+ u32 outer_fib_index;
+} vxlan_gpe_ioam_dest_tunnels_t;
+
+typedef struct vxlan_gpe_ioam_main_
+{
+ /**
+ * Linkage into the FIB object graph
+ */
+ fib_node_t node;
+
+ /* time scale transform. Joy. */
+ u32 unix_time_0;
+ f64 vlib_time_0;
+
+
+ /* Trace option */
+ u8 has_trace_option;
+
+ /* Pot option */
+ u8 has_pot_option;
+
+#define PPC_NONE 0
+#define PPC_ENCAP 1
+#define PPC_DECAP 2
+ u8 has_ppc_option;
+
+#define TSP_SECONDS 0
+#define TSP_MILLISECONDS 1
+#define TSP_MICROSECONDS 2
+#define TSP_NANOSECONDS 3
+
+ /* Array of function pointers to ADD and POP VxLAN-GPE iOAM option handling routines */
+ u8 options_size[256];
+ int (*add_options[256]) (u8 * rewrite_string, u8 * rewrite_size);
+ int (*pop_options[256]) (ip4_header_t * ip, vxlan_gpe_ioam_option_t * opt);
+
+ /* Array of function pointers to iOAM option handling routines */
+ int (*options[256]) (vlib_buffer_t * b, vxlan_gpe_ioam_option_t * opt,
+ u8 is_ipv4, u8 use_adj);
+ u8 *(*trace[256]) (u8 * s, vxlan_gpe_ioam_option_t * opt);
+
+ /* API message ID base */
+ u16 msg_id_base;
+
+ /* Override to export for iOAM */
+ uword decap_v4_next_override;
+ uword decap_v6_next_override;
+
+ /* sequence of node graph for encap */
+ uword encap_v4_next_node;
+ uword encap_v6_next_node;
+
+ /* Software interfaces. */
+ vxlan_gpe_ioam_sw_interface_t *sw_interfaces;
+
+ /* hash ip4/ip6 -> list of destinations for doing transit iOAM operation */
+ vxlan_gpe_ioam_dest_tunnels_t *dst_tunnels;
+ uword *dst_by_ip4;
+ uword *dst_by_ip6;
+
+ /** per sw_if_index, to maintain bitmap */
+ u8 *bool_ref_by_sw_if_index;
+ fib_node_type_t fib_entry_type;
+
+ /** State convenience vlib_main_t */
+ vlib_main_t *vlib_main;
+ /** State convenience vnet_main_t */
+ vnet_main_t *vnet_main;
+
+
+} vxlan_gpe_ioam_main_t;
+extern vxlan_gpe_ioam_main_t vxlan_gpe_ioam_main;
+
+/*
+ * Primary h-b-h handler trace support
+ */
+typedef struct
+{
+ u32 next_index;
+ u32 trace_len;
+ u8 option_data[256];
+} ioam_trace_t;
+
+
+extern vlib_node_registration_t vxlan_gpe_encap_ioam_v4_node;
+extern vlib_node_registration_t vxlan_gpe_decap_ioam_v4_node;
+extern vlib_node_registration_t vxlan_gpe_transit_ioam_v4_node;
+
+clib_error_t *vxlan_gpe_ioam_enable (int has_trace_option, int has_pot_option,
+ int has_ppc_option);
+
+clib_error_t *vxlan_gpe_ioam_disable (int has_trace_option,
+ int has_pot_option, int has_ppc_option);
+
+clib_error_t *vxlan_gpe_ioam_set (vxlan_gpe_tunnel_t * t,
+ int has_trace_option,
+ int has_pot_option,
+ int has_ppc_option, u8 ipv6_set);
+clib_error_t *vxlan_gpe_ioam_clear (vxlan_gpe_tunnel_t * t,
+ int has_trace_option, int has_pot_option,
+ int has_ppc_option, u8 ipv6_set);
+
+int vxlan_gpe_ioam_add_register_option (u8 option,
+ u8 size,
+ int rewrite_options (u8 *
+ rewrite_string,
+ u8 *
+ rewrite_size));
+
+int vxlan_gpe_add_unregister_option (u8 option);
+
+int vxlan_gpe_ioam_register_option (u8 option,
+ int options (vlib_buffer_t * b,
+ vxlan_gpe_ioam_option_t *
+ opt, u8 is_ipv4, u8 use_adj),
+ u8 * trace (u8 * s,
+ vxlan_gpe_ioam_option_t *
+ opt));
+int vxlan_gpe_ioam_unregister_option (u8 option);
+
+int vxlan_gpe_trace_profile_setup (void);
+
+int vxlan_gpe_trace_profile_cleanup (void);
+extern void vxlan_gpe_ioam_interface_init (void);
+int
+vxlan_gpe_enable_disable_ioam_for_dest (vlib_main_t * vm,
+ ip46_address_t dst_addr,
+ u32 outer_fib_index,
+ u8 is_ipv4, u8 is_add);
+int vxlan_gpe_ioam_disable_for_dest
+ (vlib_main_t * vm, ip46_address_t dst_addr, u32 outer_fib_index,
+ u8 ipv4_set);
+
+typedef enum
+{
+ VXLAN_GPE_DECAP_IOAM_V4_NEXT_POP,
+ VXLAN_GPE_DECAP_IOAM_V4_NEXT_DROP,
+ VXLAN_GPE_DECAP_IOAM_V4_N_NEXT
+} vxlan_gpe_decap_ioam_v4_next_t;
+
+#endif
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_ioam_packet.h b/src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_ioam_packet.h
new file mode 100644
index 00000000000..a7ef859ec58
--- /dev/null
+++ b/src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_ioam_packet.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2015 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef __included_vxlan_gpe_ioam_packet_h__
+#define __included_vxlan_gpe_ioam_packet_h__
+
+#include <vnet/vxlan-gpe/vxlan_gpe.h>
+#include <vnet/vxlan-gpe/vxlan_gpe_packet.h>
+#include <vnet/ip/ip.h>
+
+
+
+#define VXLAN_GPE_OPTION_TYPE_IOAM_TRACE 59
+#define VXLAN_GPE_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT 60
+
+/**
+ * @brief VXLAN GPE Extension (iOAM) Header definition
+ */
+typedef struct
+{
+ u8 type;
+ u8 length;
+ /** Reserved */
+ u8 reserved;
+ /** see vxlan_gpe_protocol_t */
+ u8 protocol;
+} vxlan_gpe_ioam_hdr_t;
+
+/*
+ * @brief VxLAN GPE iOAM Option definition
+ */
+typedef struct
+{
+ /* Option Type */
+ u8 type;
+ /* Length in octets of the option data field */
+ u8 length;
+} vxlan_gpe_ioam_option_t;
+
+
+#endif
+
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_ioam_trace.c b/src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_ioam_trace.c
new file mode 100644
index 00000000000..e37b1642d96
--- /dev/null
+++ b/src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_ioam_trace.c
@@ -0,0 +1,552 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <vlib/vlib.h>
+#include <vnet/vnet.h>
+#include <vnet/pg/pg.h>
+#include <vppinfra/error.h>
+
+#include <vnet/vxlan-gpe/vxlan_gpe.h>
+#include <vnet/vxlan-gpe/vxlan_gpe_packet.h>
+
+#include <vppinfra/hash.h>
+#include <vppinfra/error.h>
+#include <vppinfra/elog.h>
+
+#include <ioam/lib-trace/trace_util.h>
+#include <ioam/lib-vxlan-gpe/vxlan_gpe_ioam.h>
+
+/* Timestamp precision multipliers for seconds, milliseconds, microseconds
+ * and nanoseconds respectively.
+ */
+static f64 trace_tsp_mul[4] = { 1, 1e3, 1e6, 1e9 };
+
+typedef union
+{
+ u64 as_u64;
+ u32 as_u32[2];
+} time_u64_t;
+
+
+/* *INDENT-OFF* */
+typedef CLIB_PACKED(struct {
+ vxlan_gpe_ioam_option_t hdr;
+ u8 ioam_trace_type;
+ u8 data_list_elts_left;
+ u32 elts[0]; /* Variable type. So keep it generic */
+}) vxlan_gpe_ioam_trace_option_t;
+/* *INDENT-ON* */
+
+
+#define foreach_vxlan_gpe_ioam_trace_stats \
+ _(SUCCESS, "Pkts updated with TRACE records") \
+ _(FAILED, "Errors in TRACE due to lack of TRACE records")
+
+static char *vxlan_gpe_ioam_trace_stats_strings[] = {
+#define _(sym,string) string,
+ foreach_vxlan_gpe_ioam_trace_stats
+#undef _
+};
+
+typedef enum
+{
+#define _(sym,str) VXLAN_GPE_IOAM_TRACE_##sym,
+ foreach_vxlan_gpe_ioam_trace_stats
+#undef _
+ VXLAN_GPE_IOAM_TRACE_N_STATS,
+} vxlan_gpe_ioam_trace_stats_t;
+
+
+typedef struct
+{
+ /* stats */
+ u64 counters[ARRAY_LEN (vxlan_gpe_ioam_trace_stats_strings)];
+
+ /* convenience */
+ vlib_main_t *vlib_main;
+ vnet_main_t *vnet_main;
+} vxlan_gpe_ioam_trace_main_t;
+
+vxlan_gpe_ioam_trace_main_t vxlan_gpe_ioam_trace_main;
+
+int
+vxlan_gpe_ioam_add_register_option (u8 option,
+ u8 size,
+ int rewrite_options (u8 * rewrite_string,
+ u8 * rewrite_size))
+{
+ vxlan_gpe_ioam_main_t *hm = &vxlan_gpe_ioam_main;
+
+ ASSERT (option < ARRAY_LEN (hm->add_options));
+
+ /* Already registered */
+ if (hm->add_options[option])
+ return (-1);
+
+ hm->add_options[option] = rewrite_options;
+ hm->options_size[option] = size;
+
+ return (0);
+}
+
+int
+vxlan_gpe_add_unregister_option (u8 option)
+{
+ vxlan_gpe_ioam_main_t *hm = &vxlan_gpe_ioam_main;
+
+ ASSERT (option < ARRAY_LEN (hm->add_options));
+
+ /* Not registered */
+ if (!hm->add_options[option])
+ return (-1);
+
+ hm->add_options[option] = NULL;
+ hm->options_size[option] = 0;
+ return (0);
+}
+
+
+int
+vxlan_gpe_ioam_register_option (u8 option,
+ int options (vlib_buffer_t * b,
+ vxlan_gpe_ioam_option_t * opt,
+ u8 is_ipv4, u8 use_adj),
+ u8 * trace (u8 * s,
+ vxlan_gpe_ioam_option_t * opt))
+{
+ vxlan_gpe_ioam_main_t *im = &vxlan_gpe_ioam_main;
+
+ ASSERT (option < ARRAY_LEN (im->options));
+
+ /* Already registered */
+ if (im->options[option])
+ return (-1);
+
+ im->options[option] = options;
+ im->trace[option] = trace;
+
+ return (0);
+}
+
+int
+vxlan_gpe_ioam_unregister_option (u8 option)
+{
+ vxlan_gpe_ioam_main_t *hm = &vxlan_gpe_ioam_main;
+
+ ASSERT (option < ARRAY_LEN (hm->options));
+
+ /* Not registered */
+ if (!hm->options[option])
+ return (-1);
+
+ hm->options[option] = NULL;
+ hm->trace[option] = NULL;
+
+ return (0);
+}
+
+
+always_inline void
+vxlan_gpe_ioam_trace_stats_increment_counter (u32 counter_index,
+ u64 increment)
+{
+ vxlan_gpe_ioam_trace_main_t *hm = &vxlan_gpe_ioam_trace_main;
+
+ hm->counters[counter_index] += increment;
+}
+
+
+static u8 *
+format_ioam_data_list_element (u8 * s, va_list * args)
+{
+ u32 *elt = va_arg (*args, u32 *);
+ u8 *trace_type_p = va_arg (*args, u8 *);
+ u8 trace_type = *trace_type_p;
+
+
+ if (trace_type & BIT_TTL_NODEID)
+ {
+ u32 ttl_node_id_host_byte_order = clib_net_to_host_u32 (*elt);
+ s = format (s, "ttl 0x%x node id 0x%x ",
+ ttl_node_id_host_byte_order >> 24,
+ ttl_node_id_host_byte_order & 0x00FFFFFF);
+
+ elt++;
+ }
+
+ if (trace_type & BIT_ING_INTERFACE && trace_type & BIT_ING_INTERFACE)
+ {
+ u32 ingress_host_byte_order = clib_net_to_host_u32 (*elt);
+ s = format (s, "ingress 0x%x egress 0x%x ",
+ ingress_host_byte_order >> 16,
+ ingress_host_byte_order & 0xFFFF);
+ elt++;
+ }
+
+ if (trace_type & BIT_TIMESTAMP)
+ {
+ u32 ts_in_host_byte_order = clib_net_to_host_u32 (*elt);
+ s = format (s, "ts 0x%x \n", ts_in_host_byte_order);
+ elt++;
+ }
+
+ if (trace_type & BIT_APPDATA)
+ {
+ u32 appdata_in_host_byte_order = clib_net_to_host_u32 (*elt);
+ s = format (s, "app 0x%x ", appdata_in_host_byte_order);
+ elt++;
+ }
+
+ return s;
+}
+
+
+
+int
+vxlan_gpe_ioam_trace_rewrite_handler (u8 * rewrite_string, u8 * rewrite_size)
+{
+ vxlan_gpe_ioam_trace_option_t *trace_option = NULL;
+ u8 trace_data_size = 0;
+ u8 trace_option_elts = 0;
+ trace_profile *profile = NULL;
+
+
+ profile = trace_profile_find ();
+
+ if (PREDICT_FALSE (!profile))
+ {
+ return (-1);
+ }
+
+ if (PREDICT_FALSE (!rewrite_string))
+ return -1;
+
+ trace_option_elts = profile->num_elts;
+ trace_data_size = fetch_trace_data_size (profile->trace_type);
+ trace_option = (vxlan_gpe_ioam_trace_option_t *) rewrite_string;
+ trace_option->hdr.type = VXLAN_GPE_OPTION_TYPE_IOAM_TRACE;
+ trace_option->hdr.length = 2 /*ioam_trace_type,data_list_elts_left */ +
+ trace_option_elts * trace_data_size;
+ trace_option->ioam_trace_type = profile->trace_type & TRACE_TYPE_MASK;
+ trace_option->data_list_elts_left = trace_option_elts;
+ *rewrite_size =
+ sizeof (vxlan_gpe_ioam_trace_option_t) +
+ (trace_option_elts * trace_data_size);
+
+ return 0;
+}
+
+
+int
+vxlan_gpe_ioam_trace_data_list_handler (vlib_buffer_t * b,
+ vxlan_gpe_ioam_option_t * opt,
+ u8 is_ipv4, u8 use_adj)
+{
+ u8 elt_index = 0;
+ vxlan_gpe_ioam_trace_option_t *trace =
+ (vxlan_gpe_ioam_trace_option_t *) opt;
+ time_u64_t time_u64;
+ u32 *elt;
+ int rv = 0;
+ trace_profile *profile = NULL;
+ vxlan_gpe_ioam_main_t *hm = &vxlan_gpe_ioam_main;
+
+
+ profile = trace_profile_find ();
+
+ if (PREDICT_FALSE (!profile))
+ {
+ return (-1);
+ }
+
+
+ time_u64.as_u64 = 0;
+
+ if (PREDICT_TRUE (trace->data_list_elts_left))
+ {
+ trace->data_list_elts_left--;
+ /* fetch_trace_data_size returns in bytes. Convert it to 4-bytes
+ * to skip to this node's location.
+ */
+ elt_index =
+ trace->data_list_elts_left *
+ fetch_trace_data_size (trace->ioam_trace_type) / 4;
+ elt = &trace->elts[elt_index];
+ if (is_ipv4)
+ {
+ if (trace->ioam_trace_type & BIT_TTL_NODEID)
+ {
+ ip4_header_t *ip0 = vlib_buffer_get_current (b);
+ /* The transit case is the only case where the TTL decrement happens
+ * before iOAM processing. For now, use the use_adj flag as an overload.
+ * We can probably use a separate flag instead of overloading the use_adj flag.
+ */
+ *elt = clib_host_to_net_u32 (((ip0->ttl - 1 + use_adj) << 24) |
+ profile->node_id);
+ elt++;
+ }
+
+ if (trace->ioam_trace_type & BIT_ING_INTERFACE)
+ {
+ u16 tx_if = 0;
+ u32 adj_index = vnet_buffer (b)->ip.adj_index[VLIB_TX];
+ ip4_main_t *im4 = &ip4_main;
+ ip_lookup_main_t *lm = &im4->lookup_main;
+ if (use_adj)
+ {
+ ip_adjacency_t *adj = ip_get_adjacency (lm, adj_index);
+ tx_if = adj->rewrite_header.sw_if_index & 0xFFFF;
+ }
+
+ *elt =
+ (vnet_buffer (b)->sw_if_index[VLIB_RX] & 0xFFFF) << 16 |
+ tx_if;
+ *elt = clib_host_to_net_u32 (*elt);
+ elt++;
+ }
+ }
+ else
+ {
+ if (trace->ioam_trace_type & BIT_TTL_NODEID)
+ {
+ ip6_header_t *ip0 = vlib_buffer_get_current (b);
+ *elt = clib_host_to_net_u32 ((ip0->hop_limit << 24) |
+ profile->node_id);
+ elt++;
+ }
+ if (trace->ioam_trace_type & BIT_ING_INTERFACE)
+ {
+ u16 tx_if = 0;
+ u32 adj_index = vnet_buffer (b)->ip.adj_index[VLIB_TX];
+ ip6_main_t *im6 = &ip6_main;
+ ip_lookup_main_t *lm = &im6->lookup_main;
+ if (use_adj)
+ {
+ ip_adjacency_t *adj = ip_get_adjacency (lm, adj_index);
+ tx_if = adj->rewrite_header.sw_if_index & 0xFFFF;
+ }
+
+ *elt =
+ (vnet_buffer (b)->sw_if_index[VLIB_RX] & 0xFFFF) << 16 |
+ tx_if;
+ *elt = clib_host_to_net_u32 (*elt);
+ elt++;
+ }
+ }
+
+ if (trace->ioam_trace_type & BIT_TIMESTAMP)
+ {
+ /* Send least significant 32 bits */
+ f64 time_f64 =
+ (f64) (((f64) hm->unix_time_0) +
+ (vlib_time_now (hm->vlib_main) - hm->vlib_time_0));
+
+ time_u64.as_u64 = time_f64 * trace_tsp_mul[profile->trace_tsp];
+ *elt = clib_host_to_net_u32 (time_u64.as_u32[0]);
+ elt++;
+ }
+
+ if (trace->ioam_trace_type & BIT_APPDATA)
+ {
+ /* $$$ set elt0->app_data */
+ *elt = clib_host_to_net_u32 (profile->app_data);
+ elt++;
+ }
+ vxlan_gpe_ioam_trace_stats_increment_counter
+ (VXLAN_GPE_IOAM_TRACE_SUCCESS, 1);
+ }
+ else
+ {
+ vxlan_gpe_ioam_trace_stats_increment_counter
+ (VXLAN_GPE_IOAM_TRACE_FAILED, 1);
+ }
+ return (rv);
+}
+
+u8 *
+vxlan_gpe_ioam_trace_data_list_trace_handler (u8 * s,
+ vxlan_gpe_ioam_option_t * opt)
+{
+ vxlan_gpe_ioam_trace_option_t *trace;
+ u8 trace_data_size_in_words = 0;
+ u32 *elt;
+ int elt_index = 0;
+
+ trace = (vxlan_gpe_ioam_trace_option_t *) opt;
+ s =
+ format (s, " Trace Type 0x%x , %d elts left\n", trace->ioam_trace_type,
+ trace->data_list_elts_left);
+ trace_data_size_in_words =
+ fetch_trace_data_size (trace->ioam_trace_type) / 4;
+ elt = &trace->elts[0];
+ while ((u8 *) elt < ((u8 *) (&trace->elts[0]) + trace->hdr.length - 2
+ /* -2 accounts for ioam_trace_type,elts_left */ ))
+ {
+ s = format (s, " [%d] %U\n", elt_index,
+ format_ioam_data_list_element,
+ elt, &trace->ioam_trace_type);
+ elt_index++;
+ elt += trace_data_size_in_words;
+ }
+ return (s);
+}
+
+
+static clib_error_t *
+vxlan_gpe_show_ioam_trace_cmd_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ vxlan_gpe_ioam_trace_main_t *hm = &vxlan_gpe_ioam_trace_main;
+ u8 *s = 0;
+ int i = 0;
+
+ for (i = 0; i < VXLAN_GPE_IOAM_TRACE_N_STATS; i++)
+ {
+ s = format (s, " %s - %lu\n", vxlan_gpe_ioam_trace_stats_strings[i],
+ hm->counters[i]);
+ }
+
+ vlib_cli_output (vm, "%v", s);
+ vec_free (s);
+ return 0;
+}
+
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (vxlan_gpe_show_ioam_trace_cmd, static) = {
+ .path = "show ioam vxlan-gpe trace",
+ .short_help = "iOAM trace statistics",
+ .function = vxlan_gpe_show_ioam_trace_cmd_fn,
+};
+/* *INDENT-ON* */
+
+
+static clib_error_t *
+vxlan_gpe_ioam_trace_init (vlib_main_t * vm)
+{
+ vxlan_gpe_ioam_trace_main_t *hm = &vxlan_gpe_ioam_trace_main;
+ clib_error_t *error;
+
+ if ((error = vlib_call_init_function (vm, ip_main_init)))
+ return (error);
+
+ if ((error = vlib_call_init_function (vm, ip6_lookup_init)))
+ return error;
+
+ if ((error = vlib_call_init_function (vm, vxlan_gpe_init)))
+ return (error);
+
+ hm->vlib_main = vm;
+ hm->vnet_main = vnet_get_main ();
+ memset (hm->counters, 0, sizeof (hm->counters));
+
+ if (vxlan_gpe_ioam_register_option
+ (VXLAN_GPE_OPTION_TYPE_IOAM_TRACE,
+ vxlan_gpe_ioam_trace_data_list_handler,
+ vxlan_gpe_ioam_trace_data_list_trace_handler) < 0)
+ return (clib_error_create
+ ("registration of VXLAN_GPE_OPTION_TYPE_IOAM_TRACE failed"));
+
+
+ if (vxlan_gpe_ioam_add_register_option
+ (VXLAN_GPE_OPTION_TYPE_IOAM_TRACE,
+ sizeof (vxlan_gpe_ioam_trace_option_t),
+ vxlan_gpe_ioam_trace_rewrite_handler) < 0)
+ return (clib_error_create
+ ("registration of VXLAN_GPE_OPTION_TYPE_IOAM_TRACE for rewrite failed"));
+
+
+ return (0);
+}
+
+VLIB_INIT_FUNCTION (vxlan_gpe_ioam_trace_init);
+
+int
+vxlan_gpe_trace_profile_cleanup (void)
+{
+ vxlan_gpe_ioam_main_t *hm = &vxlan_gpe_ioam_main;
+
+ hm->options_size[VXLAN_GPE_OPTION_TYPE_IOAM_TRACE] = 0;
+
+ return 0;
+
+}
+
+static int
+vxlan_gpe_ioam_trace_get_sizeof_handler (u32 * result)
+{
+ u16 size = 0;
+ u8 trace_data_size = 0;
+ trace_profile *profile = NULL;
+
+ *result = 0;
+
+ profile = trace_profile_find ();
+
+ if (PREDICT_FALSE (!profile))
+ {
+ return (-1);
+ }
+
+ trace_data_size = fetch_trace_data_size (profile->trace_type);
+ if (PREDICT_FALSE (trace_data_size == 0))
+ return VNET_API_ERROR_INVALID_VALUE;
+
+ if (PREDICT_FALSE (profile->num_elts * trace_data_size > 254))
+ return VNET_API_ERROR_INVALID_VALUE;
+
+ size +=
+ sizeof (vxlan_gpe_ioam_trace_option_t) +
+ profile->num_elts * trace_data_size;
+ *result = size;
+
+ return 0;
+}
+
+
+int
+vxlan_gpe_trace_profile_setup (void)
+{
+ u32 trace_size = 0;
+ vxlan_gpe_ioam_main_t *hm = &vxlan_gpe_ioam_main;
+
+ trace_profile *profile = NULL;
+
+
+ profile = trace_profile_find ();
+
+ if (PREDICT_FALSE (!profile))
+ {
+ return (-1);
+ }
+
+
+ if (vxlan_gpe_ioam_trace_get_sizeof_handler (&trace_size) < 0)
+ return (-1);
+
+ hm->options_size[VXLAN_GPE_OPTION_TYPE_IOAM_TRACE] = trace_size;
+
+ return (0);
+}
+
+
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_ioam_util.h b/src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_ioam_util.h
new file mode 100644
index 00000000000..c0ad8d9d03a
--- /dev/null
+++ b/src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_ioam_util.h
@@ -0,0 +1,172 @@
+/*
+ * Copyright (c) 2015 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef __included_vxlan_gpe_ioam_util_h__
+#define __included_vxlan_gpe_ioam_util_h__
+
+#include <vnet/vxlan-gpe/vxlan_gpe.h>
+#include <vnet/vxlan-gpe/vxlan_gpe_packet.h>
+#include <vnet/ip/ip.h>
+
+
+typedef struct
+{
+ u32 tunnel_index;
+ ioam_trace_t fmt_trace;
+} vxlan_gpe_ioam_v4_trace_t;
+
+
+static u8 *
+format_vxlan_gpe_ioam_v4_trace (u8 * s, va_list * args)
+{
+ CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
+ CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
+ vxlan_gpe_ioam_v4_trace_t *t1 = va_arg (*args, vxlan_gpe_ioam_v4_trace_t *);
+ ioam_trace_t *t = &(t1->fmt_trace);
+ vxlan_gpe_ioam_option_t *fmt_trace0;
+ vxlan_gpe_ioam_option_t *opt0, *limit0;
+ vxlan_gpe_ioam_main_t *hm = &vxlan_gpe_ioam_main;
+
+ u8 type0;
+
+ fmt_trace0 = (vxlan_gpe_ioam_option_t *) t->option_data;
+
+ s = format (s, "VXLAN-GPE-IOAM: next_index %d len %d traced %d",
+ t->next_index, fmt_trace0->length, t->trace_len);
+
+ opt0 = (vxlan_gpe_ioam_option_t *) (fmt_trace0 + 1);
+ limit0 = (vxlan_gpe_ioam_option_t *) ((u8 *) fmt_trace0) + t->trace_len;
+
+ while (opt0 < limit0)
+ {
+ type0 = opt0->type;
+ switch (type0)
+ {
+ case 0: /* Pad, just stop */
+ opt0 = (vxlan_gpe_ioam_option_t *) ((u8 *) opt0) + 1;
+ break;
+
+ default:
+ if (hm->trace[type0])
+ {
+ s = (*hm->trace[type0]) (s, opt0);
+ }
+ else
+ {
+ s =
+ format (s, "\n unrecognized option %d length %d", type0,
+ opt0->length);
+ }
+ opt0 =
+ (vxlan_gpe_ioam_option_t *) (((u8 *) opt0) + opt0->length +
+ sizeof (vxlan_gpe_ioam_option_t));
+ break;
+ }
+ }
+
+ s = format (s, "VXLAN-GPE-IOAM: tunnel %d", t1->tunnel_index);
+ return s;
+}
+
+
+always_inline void
+vxlan_gpe_encap_decap_ioam_v4_one_inline (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_buffer_t * b0,
+ u32 * next0, u32 drop_node_val,
+ u8 use_adj)
+{
+ ip4_header_t *ip0;
+ udp_header_t *udp_hdr0;
+ vxlan_gpe_header_t *gpe_hdr0;
+ vxlan_gpe_ioam_hdr_t *gpe_ioam0;
+ vxlan_gpe_ioam_option_t *opt0;
+ vxlan_gpe_ioam_option_t *limit0;
+ vxlan_gpe_ioam_main_t *hm = &vxlan_gpe_ioam_main;
+
+ /* Populate the iOAM header */
+ ip0 = vlib_buffer_get_current (b0);
+ udp_hdr0 = (udp_header_t *) (ip0 + 1);
+ gpe_hdr0 = (vxlan_gpe_header_t *) (udp_hdr0 + 1);
+ gpe_ioam0 = (vxlan_gpe_ioam_hdr_t *) (gpe_hdr0 + 1);
+ opt0 = (vxlan_gpe_ioam_option_t *) (gpe_ioam0 + 1);
+ limit0 = (vxlan_gpe_ioam_option_t *) ((u8 *) gpe_ioam0 + gpe_ioam0->length);
+
+ /*
+ * Basic validity checks
+ */
+ if (gpe_ioam0->length > clib_net_to_host_u16 (ip0->length))
+ {
+ *next0 = drop_node_val;
+ return;
+ }
+
+ /* Scan the set of h-b-h options, process ones that we understand */
+ while (opt0 < limit0)
+ {
+ u8 type0;
+ type0 = opt0->type;
+ switch (type0)
+ {
+ case 0: /* Pad1 */
+ opt0 = (vxlan_gpe_ioam_option_t *) ((u8 *) opt0) + 1;
+ continue;
+ case 1: /* PadN */
+ break;
+ default:
+ if (hm->options[type0])
+ {
+ if ((*hm->options[type0]) (b0, opt0, 1 /* is_ipv4 */ ,
+ use_adj) < 0)
+ {
+ *next0 = drop_node_val;
+ return;
+ }
+ }
+ break;
+ }
+ opt0 =
+ (vxlan_gpe_ioam_option_t *) (((u8 *) opt0) + opt0->length +
+ sizeof (vxlan_gpe_ioam_hdr_t));
+ }
+
+
+ if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ vxlan_gpe_ioam_v4_trace_t *t =
+ vlib_add_trace (vm, node, b0, sizeof (*t));
+ u32 trace_len = gpe_ioam0->length;
+ t->fmt_trace.next_index = *next0;
+ /* Capture the ioam option verbatim */
+ trace_len =
+ trace_len <
+ ARRAY_LEN (t->fmt_trace.
+ option_data) ? trace_len : ARRAY_LEN (t->fmt_trace.
+ option_data);
+ t->fmt_trace.trace_len = trace_len;
+ clib_memcpy (&(t->fmt_trace.option_data), gpe_ioam0, trace_len);
+ }
+ return;
+}
+
+
+#endif
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_msg_enum.h b/src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_msg_enum.h
new file mode 100644
index 00000000000..cc0a10a3fec
--- /dev/null
+++ b/src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_msg_enum.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef included_vxlan_gpe_msg_enum_h
+#define included_vxlan_gpe_msg_enum_h
+
+#include <vppinfra/byte_order.h>
+
+#define vl_msg_id(n,h) n,
+typedef enum {
+#include <ioam/lib-vxlan-gpe/vxlan_gpe_all_api_h.h>
+ /* We'll want to know how many messages IDs we need... */
+ VL_MSG_FIRST_AVAILABLE,
+} vl_msg_id_t;
+#undef vl_msg_id
+
+#endif /* included_vxlan_gpe_msg_enum_h */
diff --git a/src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_test.c b/src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_test.c
new file mode 100644
index 00000000000..47253eb67ab
--- /dev/null
+++ b/src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_test.c
@@ -0,0 +1,600 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
+ *------------------------------------------------------------------
+ * vxlan_gpe_test.c - test harness for vxlan_gpe plugin
+ *------------------------------------------------------------------
+ */
+
+#include <vat/vat.h>
+#include <vlibapi/api.h>
+#include <vlibmemory/api.h>
+#include <vlibsocket/api.h>
+#include <vppinfra/error.h>
+
+/* Declare message IDs */
+#include <ioam/lib-vxlan-gpe/vxlan_gpe_msg_enum.h>
+
+/* define message structures */
+#define vl_typedefs
+#include <ioam/lib-vxlan-gpe/vxlan_gpe_all_api_h.h>
+#undef vl_typedefs
+
+/* declare message handlers for each api */
+
+#define vl_endianfun /* define message structures */
+#include <ioam/lib-vxlan-gpe/vxlan_gpe_all_api_h.h>
+#undef vl_endianfun
+
+/* instantiate all the print functions we know about */
+#define vl_print(handle, ...)
+#define vl_printfun
+#include <ioam/lib-vxlan-gpe/vxlan_gpe_all_api_h.h>
+#undef vl_printfun
+
+/* Get the API version number. */
+#define vl_api_version(n,v) static u32 api_version=(v);
+#include <ioam/lib-vxlan-gpe/vxlan_gpe_all_api_h.h>
+#undef vl_api_version
+#include <ioam/lib-vxlan-gpe/vxlan_gpe_ioam_packet.h>
+#include <ioam/lib-vxlan-gpe/vxlan_gpe_ioam.h>
+
+typedef struct
+{
+ /* API message ID base */
+ u16 msg_id_base;
+ vat_main_t *vat_main;
+} vxlan_gpe_test_main_t;
+
+vxlan_gpe_test_main_t vxlan_gpe_test_main;
+
+#define foreach_standard_reply_retval_handler \
+_(vxlan_gpe_ioam_enable_reply) \
+_(vxlan_gpe_ioam_disable_reply) \
+_(vxlan_gpe_ioam_vni_enable_reply) \
+_(vxlan_gpe_ioam_vni_disable_reply) \
+_(vxlan_gpe_ioam_transit_enable_reply) \
+_(vxlan_gpe_ioam_transit_disable_reply)
+
+#define _(n) \
+ static void vl_api_##n##_t_handler \
+ (vl_api_##n##_t * mp) \
+ { \
+ vat_main_t * vam = vxlan_gpe_test_main.vat_main; \
+ i32 retval = ntohl(mp->retval); \
+ if (vam->async_mode) { \
+ vam->async_errors += (retval < 0); \
+ } else { \
+ vam->retval = retval; \
+ vam->result_ready = 1; \
+ } \
+ }
+foreach_standard_reply_retval_handler;
+#undef _
+
+/*
+ * Table of message reply handlers, must include boilerplate handlers
+ * we just generated
+ */
+#define foreach_vpe_api_reply_msg \
+_(VXLAN_GPE_IOAM_ENABLE_REPLY, vxlan_gpe_ioam_enable_reply) \
+_(VXLAN_GPE_IOAM_DISABLE_REPLY, vxlan_gpe_ioam_disable_reply) \
+_(VXLAN_GPE_IOAM_VNI_ENABLE_REPLY, vxlan_gpe_ioam_vni_enable_reply) \
+_(VXLAN_GPE_IOAM_VNI_DISABLE_REPLY, vxlan_gpe_ioam_vni_disable_reply) \
+_(VXLAN_GPE_IOAM_TRANSIT_ENABLE_REPLY, vxlan_gpe_ioam_transit_enable_reply) \
+_(VXLAN_GPE_IOAM_TRANSIT_DISABLE_REPLY, vxlan_gpe_ioam_transit_disable_reply) \
+
+
+/* M: construct, but don't yet send a message */
+
+#define M(T,t) \
+do { \
+ vam->result_ready = 0; \
+ mp = vl_msg_api_alloc(sizeof(*mp)); \
+ memset (mp, 0, sizeof (*mp)); \
+ mp->_vl_msg_id = ntohs (VL_API_##T + sm->msg_id_base); \
+ mp->client_index = vam->my_client_index; \
+} while(0);
+
+#define M2(T,t,n) \
+do { \
+ vam->result_ready = 0; \
+ mp = vl_msg_api_alloc(sizeof(*mp)+(n)); \
+ memset (mp, 0, sizeof (*mp)); \
+ mp->_vl_msg_id = ntohs (VL_API_##T + sm->msg_id_base); \
+ mp->client_index = vam->my_client_index; \
+} while(0);
+
+/* S: send a message */
+#define S (vl_msg_api_send_shmem (vam->vl_input_queue, (u8 *)&mp))
+
+/* W: wait for results, with timeout */
+#define W \
+do { \
+ timeout = vat_time_now (vam) + 1.0; \
+ \
+ while (vat_time_now (vam) < timeout) { \
+ if (vam->result_ready == 1) { \
+ return (vam->retval); \
+ } \
+ } \
+ return -99; \
+} while(0);
+
+
+static int
+api_vxlan_gpe_ioam_enable (vat_main_t * vam)
+{
+ vxlan_gpe_test_main_t *sm = &vxlan_gpe_test_main;
+
+ unformat_input_t *input = vam->input;
+ vl_api_vxlan_gpe_ioam_enable_t *mp;
+ f64 timeout;
+ u32 id = 0;
+ int has_trace_option = 0;
+ int has_pow_option = 0;
+ int has_ppc_option = 0;
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "trace"))
+ has_trace_option = 1;
+ else if (unformat (input, "pow"))
+ has_pow_option = 1;
+ else if (unformat (input, "ppc encap"))
+ has_ppc_option = PPC_ENCAP;
+ else if (unformat (input, "ppc decap"))
+ has_ppc_option = PPC_DECAP;
+ else if (unformat (input, "ppc none"))
+ has_ppc_option = PPC_NONE;
+ else
+ break;
+ }
+ M (VXLAN_GPE_IOAM_ENABLE, vxlan_gpe_ioam_enable);
+ mp->id = htons (id);
+ mp->trace_ppc = has_ppc_option;
+ mp->pow_enable = has_pow_option;
+ mp->trace_enable = has_trace_option;
+
+
+ S;
+ W;
+
+ return (0);
+}
+
+
+static int
+api_vxlan_gpe_ioam_disable (vat_main_t * vam)
+{
+ vxlan_gpe_test_main_t *sm = &vxlan_gpe_test_main;
+ vl_api_vxlan_gpe_ioam_disable_t *mp;
+ f64 timeout;
+
+ M (VXLAN_GPE_IOAM_DISABLE, vxlan_gpe_ioam_disable);
+ S;
+ W;
+ return 0;
+}
+
+static int
+api_vxlan_gpe_ioam_vni_enable (vat_main_t * vam)
+{
+ vxlan_gpe_test_main_t *sm = &vxlan_gpe_test_main;
+
+ unformat_input_t *line_input = vam->input;
+ vl_api_vxlan_gpe_ioam_vni_enable_t *mp;
+ ip4_address_t local4, remote4;
+ ip6_address_t local6, remote6;
+ u8 ipv4_set = 0, ipv6_set = 0;
+ u8 local_set = 0;
+ u8 remote_set = 0;
+ u32 vni;
+ u8 vni_set = 0;
+ f64 timeout;
+
+
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "local %U", unformat_ip4_address, &local4))
+ {
+ local_set = 1;
+ ipv4_set = 1;
+ }
+ else if (unformat (line_input, "remote %U",
+ unformat_ip4_address, &remote4))
+ {
+ remote_set = 1;
+ ipv4_set = 1;
+ }
+ else if (unformat (line_input, "local %U",
+ unformat_ip6_address, &local6))
+ {
+ local_set = 1;
+ ipv6_set = 1;
+ }
+ else if (unformat (line_input, "remote %U",
+ unformat_ip6_address, &remote6))
+ {
+ remote_set = 1;
+ ipv6_set = 1;
+ }
+
+ else if (unformat (line_input, "vni %d", &vni))
+ vni_set = 1;
+ else
+ {
+ errmsg ("parse error '%U'\n", format_unformat_error, line_input);
+ return -99;
+ }
+ }
+
+ if (local_set == 0)
+ {
+ errmsg ("tunnel local address not specified\n");
+ return -99;
+ }
+ if (remote_set == 0)
+ {
+ errmsg ("tunnel remote address not specified\n");
+ return -99;
+ }
+ if (ipv4_set && ipv6_set)
+ {
+ errmsg ("both IPv4 and IPv6 addresses specified");
+ return -99;
+ }
+
+ if (vni_set == 0)
+ {
+ errmsg ("vni not specified\n");
+ return -99;
+ }
+
+ M (VXLAN_GPE_IOAM_VNI_ENABLE, vxlan_gpe_ioam_vni_enable);
+
+
+ if (ipv6_set)
+ {
+ clib_memcpy (&mp->local, &local6, sizeof (local6));
+ clib_memcpy (&mp->remote, &remote6, sizeof (remote6));
+ }
+ else
+ {
+ clib_memcpy (&mp->local, &local4, sizeof (local4));
+ clib_memcpy (&mp->remote, &remote4, sizeof (remote4));
+ }
+
+ mp->vni = ntohl (vni);
+ mp->is_ipv6 = ipv6_set;
+
+ S;
+ W;
+
+ return (0);
+}
+
+static int
+api_vxlan_gpe_ioam_vni_disable (vat_main_t * vam)
+{
+ vxlan_gpe_test_main_t *sm = &vxlan_gpe_test_main;
+
+ unformat_input_t *line_input = vam->input;
+ vl_api_vxlan_gpe_ioam_vni_disable_t *mp;
+ ip4_address_t local4, remote4;
+ ip6_address_t local6, remote6;
+ u8 ipv4_set = 0, ipv6_set = 0;
+ u8 local_set = 0;
+ u8 remote_set = 0;
+ u32 vni;
+ u8 vni_set = 0;
+ f64 timeout;
+
+
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "local %U", unformat_ip4_address, &local4))
+ {
+ local_set = 1;
+ ipv4_set = 1;
+ }
+ else if (unformat (line_input, "remote %U",
+ unformat_ip4_address, &remote4))
+ {
+ remote_set = 1;
+ ipv4_set = 1;
+ }
+ else if (unformat (line_input, "local %U",
+ unformat_ip6_address, &local6))
+ {
+ local_set = 1;
+ ipv6_set = 1;
+ }
+ else if (unformat (line_input, "remote %U",
+ unformat_ip6_address, &remote6))
+ {
+ remote_set = 1;
+ ipv6_set = 1;
+ }
+
+ else if (unformat (line_input, "vni %d", &vni))
+ vni_set = 1;
+ else
+ {
+ errmsg ("parse error '%U'\n", format_unformat_error, line_input);
+ return -99;
+ }
+ }
+
+ if (local_set == 0)
+ {
+ errmsg ("tunnel local address not specified\n");
+ return -99;
+ }
+ if (remote_set == 0)
+ {
+ errmsg ("tunnel remote address not specified\n");
+ return -99;
+ }
+ if (ipv4_set && ipv6_set)
+ {
+ errmsg ("both IPv4 and IPv6 addresses specified");
+ return -99;
+ }
+
+ if (vni_set == 0)
+ {
+ errmsg ("vni not specified\n");
+ return -99;
+ }
+
+ M (VXLAN_GPE_IOAM_VNI_DISABLE, vxlan_gpe_ioam_vni_disable);
+
+
+ if (ipv6_set)
+ {
+ clib_memcpy (&mp->local, &local6, sizeof (local6));
+ clib_memcpy (&mp->remote, &remote6, sizeof (remote6));
+ }
+ else
+ {
+ clib_memcpy (&mp->local, &local4, sizeof (local4));
+ clib_memcpy (&mp->remote, &remote4, sizeof (remote4));
+ }
+
+ mp->vni = ntohl (vni);
+ mp->is_ipv6 = ipv6_set;
+
+ S;
+ W;
+
+ return 0;
+}
+
+static int
+api_vxlan_gpe_ioam_transit_enable (vat_main_t * vam)
+{
+ vxlan_gpe_test_main_t *sm = &vxlan_gpe_test_main;
+
+ unformat_input_t *line_input = vam->input;
+ vl_api_vxlan_gpe_ioam_transit_enable_t *mp;
+ ip4_address_t local4;
+ ip6_address_t local6;
+ u8 ipv4_set = 0, ipv6_set = 0;
+ u8 local_set = 0;
+ u32 outer_fib_index = 0;
+ f64 timeout;
+
+
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "dst-ip %U", unformat_ip4_address, &local4))
+ {
+ local_set = 1;
+ ipv4_set = 1;
+ }
+ else if (unformat (line_input, "dst-ip %U",
+ unformat_ip6_address, &local6))
+ {
+ local_set = 1;
+ ipv6_set = 1;
+ }
+
+ else if (unformat (line_input, "outer-fib-index %d", &outer_fib_index))
+ ;
+ else
+ {
+ errmsg ("parse error '%U'\n", format_unformat_error, line_input);
+ return -99;
+ }
+ }
+
+ if (local_set == 0)
+ {
+ errmsg ("destination address not specified\n");
+ return -99;
+ }
+ if (ipv4_set && ipv6_set)
+ {
+ errmsg ("both IPv4 and IPv6 addresses specified");
+ return -99;
+ }
+
+
+ M (VXLAN_GPE_IOAM_TRANSIT_ENABLE, vxlan_gpe_ioam_transit_enable);
+
+
+ if (ipv6_set)
+ {
+ errmsg ("IPv6 currently unsupported");
+ return -1;
+ }
+ else
+ {
+ clib_memcpy (&mp->dst_addr, &local4, sizeof (local4));
+ }
+
+ mp->outer_fib_index = htonl (outer_fib_index);
+ mp->is_ipv6 = ipv6_set;
+
+ S;
+ W;
+
+ return (0);
+}
+
+static int
+api_vxlan_gpe_ioam_transit_disable (vat_main_t * vam)
+{
+ vxlan_gpe_test_main_t *sm = &vxlan_gpe_test_main;
+
+ unformat_input_t *line_input = vam->input;
+ vl_api_vxlan_gpe_ioam_transit_disable_t *mp;
+ ip4_address_t local4;
+ ip6_address_t local6;
+ u8 ipv4_set = 0, ipv6_set = 0;
+ u8 local_set = 0;
+ u32 outer_fib_index;
+ f64 timeout;
+
+
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "dst-ip %U", unformat_ip4_address, &local4))
+ {
+ local_set = 1;
+ ipv4_set = 1;
+ }
+ else if (unformat (line_input, "dst-ip %U",
+ unformat_ip6_address, &local6))
+ {
+ local_set = 1;
+ ipv6_set = 1;
+ }
+
+ else if (unformat (line_input, "outer-fib-index %d", &outer_fib_index))
+ ;
+ else
+ {
+ errmsg ("parse error '%U'\n", format_unformat_error, line_input);
+ return -99;
+ }
+ }
+
+ if (local_set == 0)
+ {
+ errmsg ("destination address not specified\n");
+ return -99;
+ }
+ if (ipv4_set && ipv6_set)
+ {
+ errmsg ("both IPv4 and IPv6 addresses specified");
+ return -99;
+ }
+
+
+ M (VXLAN_GPE_IOAM_TRANSIT_DISABLE, vxlan_gpe_ioam_transit_disable);
+
+
+ if (ipv6_set)
+ {
+ return -1;
+ }
+ else
+ {
+ clib_memcpy (&mp->dst_addr, &local4, sizeof (local4));
+ }
+
+ mp->outer_fib_index = htonl (outer_fib_index);
+ mp->is_ipv6 = ipv6_set;
+
+ S;
+ W;
+
+
+ return (0);
+}
+
+/*
+ * List of messages that the api test plugin sends,
+ * and that the data plane plugin processes
+ */
+#define foreach_vpe_api_msg \
+_(vxlan_gpe_ioam_enable, ""\
+ "[trace] [pow] [ppc <encap|ppc decap>]") \
+_(vxlan_gpe_ioam_disable, "") \
+_(vxlan_gpe_ioam_vni_enable, ""\
+ "local <local_vtep_ip> remote <remote_vtep_ip> vni <vnid>") \
+_(vxlan_gpe_ioam_vni_disable, ""\
+ "local <local_vtep_ip> remote <remote_vtep_ip> vni <vnid>") \
+_(vxlan_gpe_ioam_transit_enable, ""\
+ "dst-ip <dst_ip> [outer-fib-index <outer_fib_index>]") \
+_(vxlan_gpe_ioam_transit_disable, ""\
+ "dst-ip <dst_ip> [outer-fib-index <outer_fib_index>]") \
+
+
+void
+vat_api_hookup (vat_main_t * vam)
+{
+ vxlan_gpe_test_main_t *sm = &vxlan_gpe_test_main;
+ /* Hook up handlers for replies from the data plane plug-in */
+#define _(N,n) \
+ vl_msg_api_set_handlers((VL_API_##N + sm->msg_id_base), \
+ #n, \
+ vl_api_##n##_t_handler, \
+ vl_noop_handler, \
+ vl_api_##n##_t_endian, \
+ vl_api_##n##_t_print, \
+ sizeof(vl_api_##n##_t), 1);
+ foreach_vpe_api_reply_msg;
+#undef _
+
+ /* API messages we can send */
+#define _(n,h) hash_set_mem (vam->function_by_name, #n, api_##n);
+ foreach_vpe_api_msg;
+#undef _
+
+ /* Help strings */
+#define _(n,h) hash_set_mem (vam->help_by_name, #n, h);
+ foreach_vpe_api_msg;
+#undef _
+}
+
+clib_error_t *
+vat_plugin_register (vat_main_t * vam)
+{
+ vxlan_gpe_test_main_t *sm = &vxlan_gpe_test_main;
+ u8 *name;
+
+ sm->vat_main = vam;
+
+ name = format (0, "ioam_vxlan_gpe_%08x%c", api_version, 0);
+ sm->msg_id_base = vl_client_get_first_plugin_msg_id ((char *) name);
+
+ if (sm->msg_id_base != (u16) ~ 0)
+ vat_api_hookup (vam);
+
+ vec_free (name);
+
+ return 0;
+}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */