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Diffstat (limited to 'src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_api.c')
-rw-r--r--src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_api.c378
1 files changed, 378 insertions, 0 deletions
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:
+ */