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-rw-r--r--src/plugins/gbp/gbp_vxlan.c38
-rw-r--r--src/plugins/unittest/CMakeLists.txt1
-rw-r--r--src/plugins/unittest/punt_test.c402
3 files changed, 422 insertions, 19 deletions
diff --git a/src/plugins/gbp/gbp_vxlan.c b/src/plugins/gbp/gbp_vxlan.c
index 286345ed8fa..49dae7e9f4c 100644
--- a/src/plugins/gbp/gbp_vxlan.c
+++ b/src/plugins/gbp/gbp_vxlan.c
@@ -22,6 +22,7 @@
#include <vnet/vxlan-gbp/vxlan_gbp.h>
#include <vlibmemory/api.h>
#include <vnet/fib/fib_table.h>
+#include <vlib/punt.h>
/**
* A reference to a VXLAN-GBP tunnel created as a child/dependent tunnel
@@ -66,6 +67,10 @@ index_t *gbp_vxlan_tunnel_db;
*/
index_t *vxlan_tunnel_ref_db;
+/**
+ * handle registered with the ;unt infra
+ */
+static vlib_punt_hdl_t punt_hdl;
static char *gbp_vxlan_tunnel_layer_strings[] = {
#define _(n,s) [GBP_VXLAN_TUN_##n] = s,
@@ -672,28 +677,23 @@ VLIB_CLI_COMMAND (gbp_vxlan_show_node, static) = {
static clib_error_t *
gbp_vxlan_init (vlib_main_t * vm)
{
- u32 slot4;
- vlib_node_t *node = vlib_get_node_by_name (vm, (u8 *) "gbp-vxlan4");
-
- /*
- * insert ourselves into the VXLAN-GBP arc to collect the no-tunnel
- * packets.
- */
- slot4 = vlib_node_add_next_with_slot (vm,
- vxlan4_gbp_input_node.index,
- node->index,
- VXLAN_GBP_INPUT_NEXT_NO_TUNNEL);
- ASSERT (slot4 == VXLAN_GBP_INPUT_NEXT_NO_TUNNEL);
-
- /* slot6 = vlib_node_add_next_with_slot (vm, */
- /* vxlan6_gbp_input_node.index, */
- /* gbp_vxlan6_input_node.index, */
- /* VXLAN_GBP_INPUT_NEXT_NO_TUNNEL); */
- /* ASSERT (slot6 == VXLAN_GBP_INPUT_NEXT_NO_TUNNEL); */
+ vxlan_gbp_main_t *vxm = &vxlan_gbp_main;
+ clib_error_t *error;
gt_logger = vlib_log_register_class ("gbp", "tun");
- return (NULL);
+ if ((error = vlib_call_init_function (vm, punt_init)))
+ return error;
+ if ((error = vlib_call_init_function (vm, vxlan_gbp_init)))
+ return error;
+
+ punt_hdl = vlib_punt_client_register ("gbp-vxlan");
+
+ vlib_punt_register (punt_hdl,
+ vxm->punt_no_such_tunnel[FIB_PROTOCOL_IP4],
+ "gbp-vxlan4");
+
+ return (error);
}
VLIB_INIT_FUNCTION (gbp_vxlan_init);
diff --git a/src/plugins/unittest/CMakeLists.txt b/src/plugins/unittest/CMakeLists.txt
index 74bcef3c208..0af0dea250c 100644
--- a/src/plugins/unittest/CMakeLists.txt
+++ b/src/plugins/unittest/CMakeLists.txt
@@ -24,6 +24,7 @@ add_vpp_plugin(unittest
ipsec_test.c
interface_test.c
mfib_test.c
+ punt_test.c
session_test.c
string_test.c
tcp_test.c
diff --git a/src/plugins/unittest/punt_test.c b/src/plugins/unittest/punt_test.c
new file mode 100644
index 00000000000..3806dae88a3
--- /dev/null
+++ b/src/plugins/unittest/punt_test.c
@@ -0,0 +1,402 @@
+/*
+ * Copyright (c) 2018 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 <vnet/adj/rewrite.h>
+#include <vnet/ethernet/ethernet.h>
+#include <vnet/adj/adj.h>
+#include <vnet/ip/ip.h>
+
+typedef enum punt_next_t_
+{
+ PUNT_NEXT_DROP,
+ PUNT_N_NEXT,
+} punt_next_t;
+
+typedef struct punt_trace_t_
+{
+ vlib_punt_reason_t pt_reason;
+} punt_trace_t;
+
+/**
+ * Per-thread clone vectors
+ */
+u32 **punt_clones;
+
+#define SW_IF_INDEX_PG0 1
+#define SW_IF_INDEX_PG1 2
+
+index_t *adjs[FIB_PROTOCOL_IP_MAX];
+
+static vlib_punt_reason_t punt_reason_v4, punt_reason_v6;
+static vlib_punt_hdl_t punt_hdl;
+
+static u8 *
+format_punt_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 *);
+ punt_trace_t *t = va_arg (*args, punt_trace_t *);
+
+ s = format (s, "punt: %U", format_vlib_punt_reason, t->pt_reason);
+
+ return s;
+}
+
+always_inline uword
+punt_test_fwd (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame, fib_protocol_t fproto, u32 sw_if_index)
+{
+ u32 n_left_from, *from, *to_next, next_index;
+
+ from = vlib_frame_vector_args (frame);
+ n_left_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)
+ {
+ ip_adjacency_t *adj0;
+ vlib_buffer_t *b0;
+ void *ip0;
+ index_t ai0;
+ u32 bi0;
+
+ bi0 = to_next[0] = from[0];
+ from += 1;
+ to_next += 1;
+ n_left_to_next -= 1;
+ n_left_from -= 1;
+
+ b0 = vlib_get_buffer (vm, bi0);
+ vnet_buffer (b0)->sw_if_index[VLIB_TX] = sw_if_index;
+ ai0 = adjs[fproto][sw_if_index];
+
+ adj0 = adj_get (ai0);
+ ip0 = vlib_buffer_get_current (b0);
+
+ vlib_buffer_advance (b0, -adj0->rewrite_header.data_bytes);
+ vnet_rewrite_one_header (adj0[0], ip0, sizeof (ethernet_header_t));
+
+ vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
+ to_next, n_left_to_next, bi0, 0);
+ }
+ vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+ }
+
+ return frame->n_vectors;
+}
+
+always_inline uword
+punt_test_pg0_ip4 (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ return (punt_test_fwd (vm, node, frame, FIB_PROTOCOL_IP4, SW_IF_INDEX_PG0));
+}
+
+always_inline uword
+punt_test_pg1_ip4 (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ return (punt_test_fwd (vm, node, frame, FIB_PROTOCOL_IP4, SW_IF_INDEX_PG1));
+}
+
+always_inline uword
+punt_test_pg0_ip6 (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ return (punt_test_fwd (vm, node, frame, FIB_PROTOCOL_IP6, SW_IF_INDEX_PG0));
+}
+
+always_inline uword
+punt_test_pg1_ip6 (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ return (punt_test_fwd (vm, node, frame, FIB_PROTOCOL_IP6, SW_IF_INDEX_PG1));
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (punt_test_pg0_ip4_node) = {
+ .function = punt_test_pg0_ip4,
+ .name = "punt-test-pg0-ip4",
+ .vector_size = sizeof (u32),
+ .format_trace = format_punt_trace,
+};
+VLIB_REGISTER_NODE (punt_test_pg1_ip4_node) = {
+ .function = punt_test_pg1_ip4,
+ .name = "punt-test-pg1-ip4",
+ .vector_size = sizeof (u32),
+ .format_trace = format_punt_trace,
+};
+VLIB_REGISTER_NODE (punt_test_pg0_ip6_node) = {
+ .function = punt_test_pg0_ip6,
+ .name = "punt-test-pg0-ip6",
+ .vector_size = sizeof (u32),
+ .format_trace = format_punt_trace,
+};
+VLIB_REGISTER_NODE (punt_test_pg1_ip6_node) = {
+ .function = punt_test_pg1_ip6,
+ .name = "punt-test-pg1-ip6",
+ .vector_size = sizeof (u32),
+ .format_trace = format_punt_trace,
+};
+/* *INDENT-ON* */
+
+typedef struct punt_feat_trace_t_
+{
+ vlib_punt_reason_t pt_reason;
+} punt_feat_trace_t;
+
+always_inline uword
+punt_test_feat_inline (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame, u8 is_ip4)
+{
+ u32 n_left_from, *from, *to_next, next_index;
+
+ from = vlib_frame_vector_args (frame);
+ n_left_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)
+ {
+ vlib_buffer_t *b0;
+ u32 bi0, next0;
+
+ bi0 = to_next[0] = from[0];
+ from += 1;
+ to_next += 1;
+ n_left_to_next -= 1;
+ n_left_from -= 1;
+ next0 = 0;
+
+ b0 = vlib_get_buffer (vm, bi0);
+
+ if (is_ip4)
+ b0->punt_reason = punt_reason_v4;
+ else
+ b0->punt_reason = punt_reason_v6;
+
+ if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ punt_feat_trace_t *t;
+
+ b0 = vlib_get_buffer (vm, bi0);
+
+ t = vlib_add_trace (vm, node, b0, sizeof (*t));
+ t->pt_reason = b0->punt_reason;
+ }
+ 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 frame->n_vectors;
+}
+
+static u8 *
+format_punt_feat_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 *);
+ punt_feat_trace_t *t = va_arg (*args, punt_feat_trace_t *);
+
+ s = format (s, "reason: %U", format_vlib_punt_reason, t->pt_reason);
+
+ return s;
+}
+
+always_inline uword
+punt_test_feat_ip4 (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ return (punt_test_feat_inline (vm, node, frame, 1));
+}
+
+always_inline uword
+punt_test_feat_ip6 (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ return (punt_test_feat_inline (vm, node, frame, 0));
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (punt_test_feat_ip6_node) = {
+ .function = punt_test_feat_ip6,
+ .name = "punt-test-feat-ip6",
+ .vector_size = sizeof (u32),
+ .format_trace = format_punt_feat_trace,
+ .n_next_nodes = 1,
+ .next_nodes = {
+ [0] = "punt-dispatch"
+ }
+};
+VLIB_REGISTER_NODE (punt_test_feat_ip4_node) = {
+ .function = punt_test_feat_ip4,
+ .name = "punt-test-feat-ip4",
+ .vector_size = sizeof (u32),
+ .format_trace = format_punt_feat_trace,
+ .n_next_nodes = 1,
+ .next_nodes = {
+ [0] = "punt-dispatch"
+ }
+};
+VNET_FEATURE_INIT (punt_test_feat_ip6_feature, static) =
+{
+ .arc_name = "ip6-unicast",
+ .node_name = "punt-test-feat-ip6",
+};
+VNET_FEATURE_INIT (punt_test_feat_ip4_feature, static) =
+{
+ .arc_name = "ip4-unicast",
+ .node_name = "punt-test-feat-ip4",
+};
+/* *INDENT-ON* */
+
+static clib_error_t *
+punt_test (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd_arg)
+{
+ ip46_address_t ip46 = ip46_address_initializer;
+ fib_protocol_t fproto;
+ vnet_main_t *vnm;
+ u32 sw_if_index;
+ int rc;
+
+ vnm = vnet_get_main ();
+ fproto = FIB_PROTOCOL_IP4;
+
+ if (unformat (input, "%U", unformat_vnet_sw_interface, vnm, &sw_if_index))
+ {
+ vlib_node_t *from;
+
+ if (unformat (input, "%U", unformat_ip4_address, &ip46.ip4))
+ {
+ fproto = FIB_PROTOCOL_IP4;
+ }
+ else if (unformat (input, "%U", unformat_ip6_address, &ip46.ip6))
+ {
+ fproto = FIB_PROTOCOL_IP6;
+ }
+ else if (unformat (input, "clear"))
+ {
+ vnet_feature_enable_disable ("ip4-unicast",
+ "punt-test-feat-ip4",
+ sw_if_index, 0, NULL, 0);
+ vnet_feature_enable_disable ("ip6-unicast",
+ "punt-test-feat-ip6",
+ sw_if_index, 0, NULL, 0);
+ return NULL;
+ }
+ else
+ {
+ /*
+ * allocate a client and a reason
+ */
+ punt_hdl = vlib_punt_client_register ("test");
+
+ rc =
+ vlib_punt_reason_alloc (punt_hdl, "reason-v4", &punt_reason_v4);
+ rc |=
+ vlib_punt_reason_alloc (punt_hdl, "reason-v6", &punt_reason_v6);
+ ASSERT (!rc);
+
+ vnet_feature_enable_disable ("ip4-unicast",
+ "punt-test-feat-ip4",
+ sw_if_index, 1, NULL, 0);
+ vnet_feature_enable_disable ("ip6-unicast",
+ "punt-test-feat-ip6",
+ sw_if_index, 1, NULL, 0);
+ return NULL;
+ }
+
+ if (SW_IF_INDEX_PG0 == sw_if_index)
+ {
+ if (FIB_PROTOCOL_IP4 == fproto)
+ {
+ /*
+ * register the node that will forward the punted packet
+ */
+ vlib_punt_register (punt_hdl, punt_reason_v4,
+ "punt-test-pg0-ip4");
+ from = vlib_get_node_by_name (vm, (u8 *) "punt-test-pg0-ip4");
+ }
+ else
+ {
+ vlib_punt_register (punt_hdl, punt_reason_v6,
+ "punt-test-pg0-ip6");
+ from = vlib_get_node_by_name (vm, (u8 *) "punt-test-pg0-ip6");
+ }
+ }
+ else
+ {
+ if (FIB_PROTOCOL_IP4 == fproto)
+ {
+ vlib_punt_register (punt_hdl, punt_reason_v4,
+ "punt-test-pg1-ip4");
+ from = vlib_get_node_by_name (vm, (u8 *) "punt-test-pg1-ip4");
+ }
+ else
+ {
+ vlib_punt_register (punt_hdl, punt_reason_v6,
+ "punt-test-pg1-ip6");
+ from = vlib_get_node_by_name (vm, (u8 *) "punt-test-pg1-ip6");
+ }
+ }
+
+ vlib_node_add_next (vm, from->index,
+ vnet_tx_node_index_for_sw_interface
+ (vnm, sw_if_index));
+
+ vec_validate (adjs[fproto], sw_if_index);
+
+ adjs[fproto][sw_if_index] = adj_nbr_find (fproto,
+ fib_proto_to_link (fproto),
+ &ip46, sw_if_index);
+ }
+
+ return (NULL);
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (test_fib_command, static) =
+{
+ .path = "test punt",
+ .short_help = "punt unit tests - DO NOT RUN ON A LIVE SYSTEM",
+ .function = punt_test,
+};
+/* *INDENT-ON* */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */