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authorAkshayaNadahalli <anadahal@cisco.com>2017-01-23 22:05:35 +0530
committerAkshayaNadahalli <anadahal@cisco.com>2017-03-07 14:08:22 +0000
commit1b563527c143903b6e7e79b5978af5310372f605 (patch)
tree7b673272cb930e03b77dd376f581d903c219a566 /src/plugins/ioam/udp-ping/udp_ping_api.c
parent066f034b903bda6e938bec1b12f01edef65ee9c4 (diff)
In-band OAM active probe (VPP-471)
Change-Id: Icf0ddf76ba1c8b588c79387284cd0349ebc6e45f Signed-off-by: AkshayaNadahalli <anadahal@cisco.com>
Diffstat (limited to 'src/plugins/ioam/udp-ping/udp_ping_api.c')
-rw-r--r--src/plugins/ioam/udp-ping/udp_ping_api.c190
1 files changed, 190 insertions, 0 deletions
diff --git a/src/plugins/ioam/udp-ping/udp_ping_api.c b/src/plugins/ioam/udp-ping/udp_ping_api.c
new file mode 100644
index 00000000000..8cb8cc96224
--- /dev/null
+++ b/src/plugins/ioam/udp-ping/udp_ping_api.c
@@ -0,0 +1,190 @@
+/*
+ * Copyright (c) 2017 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.
+ */
+/*
+ *------------------------------------------------------------------
+ * udp_ping_api.c - UDP Ping related APIs to create
+ * and maintain ping flows
+ *------------------------------------------------------------------
+ */
+
+#include <vnet/vnet.h>
+#include <vnet/ip/ip.h>
+#include <ioam/udp-ping/udp_ping.h>
+
+#include <vlibapi/api.h>
+#include <vlibmemory/api.h>
+#include <vlibsocket/api.h>
+
+/* define message IDs */
+#include <ioam/udp-ping/udp_ping_msg_enum.h>
+
+/* define message structures */
+#define vl_typedefs
+#include <ioam/udp-ping/udp_ping_all_api_h.h>
+#undef vl_typedefs
+
+/* define generated endian-swappers */
+#define vl_endianfun
+#include <ioam/udp-ping/udp_ping_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/udp-ping/udp_ping_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/udp-ping/udp_ping_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)); \
+ 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 module understands */
+
+#define foreach_udp_ping_api_msg \
+ _(UDP_PING_ADD_DEL_REQ, udp_ping_add_del_req) \
+ _(UDP_PING_EXPORT_REQ, udp_ping_export_req) \
+
+static void vl_api_udp_ping_add_del_req_t_handler
+ (vl_api_udp_ping_add_del_req_t * mp)
+{
+ ip46_address_t dst, src;
+ int rv = 0;
+ udp_ping_main_t *sm = &udp_ping_main;
+ vl_api_udp_ping_add_del_reply_t *rmp;
+
+ if (mp->is_ipv4)
+ {
+ rv = -1; //Not supported
+ goto ERROROUT;
+ }
+
+ clib_memcpy ((void *) &src.ip6, (void *) mp->src_ip_address,
+ sizeof (ip6_address_t));
+ clib_memcpy ((void *) &dst.ip6, (void *) mp->dst_ip_address,
+ sizeof (ip6_address_t));
+
+ ip46_udp_ping_set_flow (src, dst,
+ ntohs (mp->start_src_port),
+ ntohs (mp->end_src_port),
+ ntohs (mp->start_dst_port),
+ ntohs (mp->end_dst_port),
+ ntohs (mp->interval), mp->fault_det, mp->dis);
+ rv = 0; //FIXME
+
+ERROROUT:
+ REPLY_MACRO (VL_API_UDP_PING_ADD_DEL_REPLY);
+}
+
+static void vl_api_udp_ping_export_req_t_handler
+ (vl_api_udp_ping_export_req_t * mp)
+{
+ udp_ping_main_t *sm = &udp_ping_main;
+ int rv = 0;
+ vl_api_udp_ping_export_reply_t *rmp;
+
+ (void) udp_ping_flow_create (!mp->enable);
+ rv = 0; //FIXME
+
+ REPLY_MACRO (VL_API_UDP_PING_EXPORT_REPLY);
+}
+
+/* Set up the API message handling tables */
+static clib_error_t *
+udp_ping_api_hookup (vlib_main_t * vm)
+{
+ udp_ping_main_t *sm = &udp_ping_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_udp_ping_api_msg;
+#undef _
+
+ return 0;
+}
+
+static clib_error_t *
+udp_ping_api_init (vlib_main_t * vm)
+{
+ udp_ping_main_t *sm = &udp_ping_main;
+ clib_error_t *error = 0;
+ u8 *name;
+
+ name = format (0, "udp_ping_%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 = udp_ping_api_hookup (vm);
+
+ vec_free (name);
+
+ return error;
+}
+
+VLIB_INIT_FUNCTION (udp_ping_api_init);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */