First commit SR MPLS

Change-Id: I961685a2a0e4c314049444c64eb6ccf877c278dd
Signed-off-by: Pablo Camarillo <pcamaril@cisco.com>

1 files changed, 244 insertions, 0 deletions

diff --git a/src/vnet/srv6/sr_api.c b/src/vnet/srv6/sr_api.c
new file mode 100644
index 00000000000..925b50a1689
--- /dev/null
+++ b/src/vnet/srv6/sr_api.c
@@ -0,0 +1,244 @@
+/*
+ *------------------------------------------------------------------
+ * sr_api.c - ipv6 segment routing api
+ *
+ * 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 <vnet/srv6/sr.h>
+#include <vlibmemory/api.h>
+
+#include <vnet/interface.h>
+#include <vnet/api_errno.h>
+#include <vnet/feature/feature.h>
+
+#include <vnet/vnet_msg_enum.h>
+
+#define vl_typedefs		/* define message structures */
+#include <vnet/vnet_all_api_h.h>
+#undef vl_typedefs
+
+#define vl_endianfun		/* define message structures */
+#include <vnet/vnet_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 <vnet/vnet_all_api_h.h>
+#undef vl_printfun
+
+#include <vlibapi/api_helper_macros.h>
+
+#define foreach_vpe_api_msg                             \
+_(SR_LOCALSID_ADD_DEL, sr_localsid_add_del)             \
+_(SR_POLICY_DEL, sr_policy_del)                         \
+_(SR_STEERING_ADD_DEL, sr_steering_add_del)
+//_(SR_LOCALSIDS, sr_localsids_dump)
+//_(SR_LOCALSID_BEHAVIORS, sr_localsid_behaviors_dump)
+
+static void vl_api_sr_localsid_add_del_t_handler
+  (vl_api_sr_localsid_add_del_t * mp)
+{
+  vl_api_sr_localsid_add_del_reply_t *rmp;
+  int rv = 0;
+/*
+ * int sr_cli_localsid (char is_del, ip6_address_t *localsid_addr,
+ *  char end_psp, u8 behavior, u32 sw_if_index, u32 vlan_index, u32 fib_table,
+ *  ip46_address_t *nh_addr, void *ls_plugin_mem)
+ */
+  rv = sr_cli_localsid (mp->is_del,
+			(ip6_address_t *) & mp->localsid_addr,
+			mp->end_psp,
+			mp->behavior,
+			ntohl (mp->sw_if_index),
+			ntohl (mp->vlan_index),
+			ntohl (mp->fib_table),
+			(ip46_address_t *) & mp->nh_addr, NULL);
+
+  REPLY_MACRO (VL_API_SR_LOCALSID_ADD_DEL_REPLY);
+}
+
+static void
+vl_api_sr_policy_add_t_handler (vl_api_sr_policy_add_t * mp)
+{
+  vl_api_sr_policy_add_reply_t *rmp;
+  ip6_address_t *segments = 0, *seg;
+  ip6_address_t *this_address = (ip6_address_t *) mp->segments;
+
+  int i;
+  for (i = 0; i < mp->n_segments; i++)
+    {
+      vec_add2 (segments, seg, 1);
+      clib_memcpy (seg->as_u8, this_address->as_u8, sizeof (*this_address));
+      this_address++;
+    }
+
+/*
+ * sr_policy_add (ip6_address_t *bsid, ip6_address_t *segments,
+ *                u32 weight, u8 behavior, u32 fib_table, u8 is_encap)
+ */
+  int rv = 0;
+  rv = sr_policy_add ((ip6_address_t *) & mp->bsid_addr,
+		      segments,
+		      ntohl (mp->weight),
+		      mp->type, ntohl (mp->fib_table), mp->is_encap);
+
+  REPLY_MACRO (VL_API_SR_POLICY_ADD_REPLY);
+}
+
+static void
+vl_api_sr_policy_mod_t_handler (vl_api_sr_policy_mod_t * mp)
+{
+  vl_api_sr_policy_mod_reply_t *rmp;
+
+  ip6_address_t *segments = 0, *seg;
+  ip6_address_t *this_address = (ip6_address_t *) mp->segments;
+
+  int i;
+  for (i = 0; i < mp->n_segments; i++)
+    {
+      vec_add2 (segments, seg, 1);
+      clib_memcpy (seg->as_u8, this_address->as_u8, sizeof (*this_address));
+      this_address++;
+    }
+
+  int rv = 0;
+/*
+ * int
+ * sr_policy_mod(ip6_address_t *bsid, u32 index, u32 fib_table,
+ *               u8 operation, ip6_address_t *segments, u32 sl_index,
+ *               u32 weight, u8 is_encap)
+ */
+  rv = sr_policy_mod ((ip6_address_t *) & mp->bsid_addr,
+		      ntohl (mp->sr_policy_index),
+		      ntohl (mp->fib_table),
+		      mp->operation,
+		      segments, ntohl (mp->sl_index), ntohl (mp->weight));
+
+  REPLY_MACRO (VL_API_SR_POLICY_MOD_REPLY);
+}
+
+static void
+vl_api_sr_policy_del_t_handler (vl_api_sr_policy_del_t * mp)
+{
+  vl_api_sr_policy_del_reply_t *rmp;
+  int rv = 0;
+/*
+ * int
+ * sr_policy_del (ip6_address_t *bsid, u32 index)
+ */
+  rv = sr_policy_del ((ip6_address_t *) & mp->bsid_addr,
+		      ntohl (mp->sr_policy_index));
+
+  REPLY_MACRO (VL_API_SR_POLICY_DEL_REPLY);
+}
+
+static void vl_api_sr_steering_add_del_t_handler
+  (vl_api_sr_steering_add_del_t * mp)
+{
+  vl_api_sr_steering_add_del_reply_t *rmp;
+  int rv = 0;
+/*
+ * int
+ * sr_steering_policy(int is_del, ip6_address_t *bsid, u32 sr_policy_index,
+ *  u32 table_id, ip46_address_t *prefix, u32 mask_width, u32 sw_if_index,
+ *  u8 traffic_type)
+ */
+  rv = sr_steering_policy (mp->is_del,
+			   (ip6_address_t *) & mp->bsid_addr,
+			   ntohl (mp->sr_policy_index),
+			   ntohl (mp->table_id),
+			   (ip46_address_t *) & mp->prefix_addr,
+			   ntohl (mp->mask_width),
+			   ntohl (mp->sw_if_index), mp->traffic_type);
+
+  REPLY_MACRO (VL_API_SR_STEERING_ADD_DEL_REPLY);
+}
+
+/*
+ * sr_api_hookup
+ * Add vpe's API message handlers to the table.
+ * vlib has alread mapped shared memory and
+ * added the client registration handlers.
+ * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
+ */
+#define vl_msg_name_crc_list
+#include <vnet/vnet_all_api_h.h>
+#undef vl_msg_name_crc_list
+
+static void
+setup_message_id_table (api_main_t * am)
+{
+#define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
+  foreach_vl_msg_name_crc_sr;
+#undef _
+}
+
+static clib_error_t *
+sr_api_hookup (vlib_main_t * vm)
+{
+  api_main_t *am = &api_main;
+
+#define _(N,n)                                                  \
+    vl_msg_api_set_handlers(VL_API_##N, #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_msg;
+#undef _
+
+  /*
+   * Manually register the sr policy add msg, so we trace
+   * enough bytes to capture a typical segment list
+   */
+  vl_msg_api_set_handlers (VL_API_SR_POLICY_ADD,
+			   "sr_policy_add",
+			   vl_api_sr_policy_add_t_handler,
+			   vl_noop_handler,
+			   vl_api_sr_policy_add_t_endian,
+			   vl_api_sr_policy_add_t_print, 256, 1);
+
+  /*
+   * Manually register the sr policy mod msg, so we trace
+   * enough bytes to capture a typical segment list
+   */
+  vl_msg_api_set_handlers (VL_API_SR_POLICY_MOD,
+			   "sr_policy_mod",
+			   vl_api_sr_policy_mod_t_handler,
+			   vl_noop_handler,
+			   vl_api_sr_policy_mod_t_endian,
+			   vl_api_sr_policy_mod_t_print, 256, 1);
+
+  /*
+   * Set up the (msg_name, crc, message-id) table
+   */
+  setup_message_id_table (am);
+
+  return 0;
+}
+
+VLIB_API_INIT_FUNCTION (sr_api_hookup);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */