In-band OAM active probe (VPP-471)

Change-Id: Icf0ddf76ba1c8b588c79387284cd0349ebc6e45f
Signed-off-by: AkshayaNadahalli <anadahal@cisco.com>

1 files changed, 269 insertions, 0 deletions

diff --git a/src/plugins/ioam/udp-ping/udp_ping_test.c b/src/plugins/ioam/udp-ping/udp_ping_test.c
new file mode 100644
index 00000000000..3128f274260
--- /dev/null
+++ b/src/plugins/ioam/udp-ping/udp_ping_test.c
@@ -0,0 +1,269 @@
+/*
+ * 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_test.c - test harness for udp ping plugin
+ *------------------------------------------------------------------
+ */
+
+#include <vat/vat.h>
+#include <vlibapi/api.h>
+#include <vlibmemory/api.h>
+#include <vlibsocket/api.h>
+#include <vppinfra/error.h>
+#include <vnet/ip/ip.h>
+
+/* Declare 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
+
+/* declare message handlers for each api */
+
+#define vl_endianfun		/* define message structures */
+#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, ...)
+#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
+
+
+typedef struct
+{
+  /* API message ID base */
+  u16 msg_id_base;
+  vat_main_t *vat_main;
+} udp_ping_test_main_t;
+
+udp_ping_test_main_t udp_ping_test_main;
+
+#define foreach_standard_reply_retval_handler     \
+_(udp_ping_add_del_reply)                          \
+_(udp_ping_export_reply)
+
+#define _(n)                                            \
+    static void vl_api_##n##_t_handler                  \
+    (vl_api_##n##_t * mp)                               \
+    {                                                   \
+        vat_main_t * vam = udp_ping_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                                       \
+_(UDP_PING_ADD_DEL_REPLY, udp_ping_add_del_reply)                         \
+_(UDP_PING_EXPORT_REPLY, udp_ping_export_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);
+
+/* 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) + 5.0;         \
+                                                \
+    while (vat_time_now (vam) < timeout) {      \
+        if (vam->result_ready == 1) {           \
+            return (vam->retval);               \
+        }                                       \
+    }                                           \
+    return -99;                                 \
+} while(0);
+
+static int
+api_udp_ping_add_del_req (vat_main_t * vam)
+{
+  udp_ping_test_main_t *sm = &udp_ping_test_main;
+  unformat_input_t *input = vam->input;
+  vl_api_udp_ping_add_del_req_t *mp;
+  int rv = 0;
+  ip6_address_t dst, src;
+  u32 start_src_port, end_src_port;
+  u32 start_dst_port, end_dst_port;
+  u32 interval;
+  u8 is_disable = 0;
+  f64 timeout;
+
+  while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+    {
+      if (unformat (input, "src %U", unformat_ip6_address, &src))
+	;
+      else if (unformat (input, "start-src-port %d", &start_src_port))
+	;
+      else if (unformat (input, "end-src-port %d", &end_src_port))
+	;
+      else if (unformat (input, "start-dst-port %d", &start_dst_port))
+	;
+      else if (unformat (input, "end-dst-port %d", &end_dst_port))
+	;
+      else if (unformat (input, "dst %U", unformat_ip6_address, &dst))
+	;
+      else if (unformat (input, "interval %d", &interval))
+	;
+      else if (unformat (input, "disable"))
+	is_disable = 1;
+      else
+	break;
+    }
+
+  M (UDP_PING_ADD_DEL_REQ, udp_ping_add);
+
+  clib_memcpy (mp->src_ip_address, &src, 16);
+  clib_memcpy (mp->dst_ip_address, &dst, 16);
+  mp->start_src_port = (u16) start_src_port;
+  mp->end_src_port = (u16) end_src_port;
+  mp->start_dst_port = (u16) start_dst_port;
+  mp->end_dst_port = (u16) end_dst_port;
+  mp->interval = (u16) interval;
+  mp->is_ipv4 = 0;
+  mp->dis = is_disable;
+
+  S;
+  W;
+
+  return (rv);
+}
+
+static int
+api_udp_ping_export_req (vat_main_t * vam)
+{
+  udp_ping_test_main_t *sm = &udp_ping_test_main;
+  unformat_input_t *input = vam->input;
+  vl_api_udp_ping_export_req_t *mp;
+  int rv = 0;
+  int is_add = 1;
+  f64 timeout;
+
+  while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+    {
+      if (unformat (input, "export"))
+	is_add = 1;
+      else if (unformat (input, "disable"))
+	is_add = 0;
+      else
+	break;
+    }
+
+  M (UDP_PING_EXPORT_REQ, udp_ping_export);
+
+  mp->enable = is_add;
+
+  S;
+  W;
+
+  return (rv);
+}
+
+/*
+ * List of messages that the api test plugin sends,
+ * and that the data plane plugin processes
+ */
+#define foreach_vpe_api_msg \
+_(udp_ping_add_del_req, "src <local IPv6 address>  start-src-port <first local port> "\
+  "end-src-port <last local port> " \
+  "dst <remote IPv6 address> start-dst-port <first destination port> "\
+  "end-dst-port <last destination port> "\
+  "interval <time interval in sec for which ping packet will be sent> "\
+  "[disable]")                         \
+_(udp_ping_export_req, "export [disable]")                                         \
+
+
+void
+vat_api_hookup (vat_main_t * vam)
+{
+  udp_ping_test_main_t *sm = &udp_ping_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)
+{
+  udp_ping_test_main_t *sm = &udp_ping_test_main;
+  u8 *name;
+
+  sm->vat_main = vam;
+
+  name = format (0, "udp_ping_%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:
+ */