API refactoring : l2, mpls, sr
Change-Id: Ic5f273dae607a1d3902489e65734c76f027dc30f
Signed-off-by: Pavel Kotucek <pkotucek@cisco.com>
diff --git a/src/vnet/sr/sr_api.c b/src/vnet/sr/sr_api.c
new file mode 100644
index 0000000..6c6eb9b
--- /dev/null
+++ b/src/vnet/sr/sr_api.c
@@ -0,0 +1,279 @@
+/*
+ *------------------------------------------------------------------
+ * 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 <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_MULTICAST_MAP_ADD_DEL, sr_multicast_map_add_del)
+
+static void vl_api_sr_tunnel_add_del_t_handler
+ (vl_api_sr_tunnel_add_del_t * mp)
+{
+#if IP6SR == 0
+ clib_warning ("unimplemented");
+#else
+ ip6_sr_add_del_tunnel_args_t _a, *a = &_a;
+ int rv = 0;
+ vl_api_sr_tunnel_add_del_reply_t *rmp;
+ ip6_address_t *segments = 0, *seg;
+ ip6_address_t *tags = 0, *tag;
+ ip6_address_t *this_address;
+ int i;
+
+ if (mp->n_segments == 0)
+ {
+ rv = -11;
+ goto out;
+ }
+
+ memset (a, 0, sizeof (*a));
+ a->src_address = (ip6_address_t *) & mp->src_address;
+ a->dst_address = (ip6_address_t *) & mp->dst_address;
+ a->dst_mask_width = mp->dst_mask_width;
+ a->flags_net_byte_order = mp->flags_net_byte_order;
+ a->is_del = (mp->is_add == 0);
+ a->rx_table_id = ntohl (mp->outer_vrf_id);
+ a->tx_table_id = ntohl (mp->inner_vrf_id);
+
+ a->name = format (0, "%s", mp->name);
+ if (!(vec_len (a->name)))
+ a->name = 0;
+
+ a->policy_name = format (0, "%s", mp->policy_name);
+ if (!(vec_len (a->policy_name)))
+ a->policy_name = 0;
+
+ /* Yank segments and tags out of the API message */
+ this_address = (ip6_address_t *) mp->segs_and_tags;
+ 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++;
+ }
+ for (i = 0; i < mp->n_tags; i++)
+ {
+ vec_add2 (tags, tag, 1);
+ clib_memcpy (tag->as_u8, this_address->as_u8, sizeof (*this_address));
+ this_address++;
+ }
+
+ a->segments = segments;
+ a->tags = tags;
+
+ rv = ip6_sr_add_del_tunnel (a);
+
+out:
+
+ REPLY_MACRO (VL_API_SR_TUNNEL_ADD_DEL_REPLY);
+#endif
+}
+
+static void vl_api_sr_policy_add_del_t_handler
+ (vl_api_sr_policy_add_del_t * mp)
+{
+#if IP6SR == 0
+ clib_warning ("unimplemented");
+#else
+ ip6_sr_add_del_policy_args_t _a, *a = &_a;
+ int rv = 0;
+ vl_api_sr_policy_add_del_reply_t *rmp;
+ int i;
+
+ memset (a, 0, sizeof (*a));
+ a->is_del = (mp->is_add == 0);
+
+ a->name = format (0, "%s", mp->name);
+ if (!(vec_len (a->name)))
+ {
+ rv = VNET_API_ERROR_NO_SUCH_NODE2;
+ goto out;
+ }
+
+ if (!(mp->tunnel_names[0]))
+ {
+ rv = VNET_API_ERROR_NO_SUCH_NODE2;
+ goto out;
+ }
+
+ // start deserializing tunnel_names
+ int num_tunnels = mp->tunnel_names[0]; //number of tunnels
+ u8 *deser_tun_names = mp->tunnel_names;
+ deser_tun_names += 1; //moving along
+
+ u8 *tun_name = 0;
+ int tun_name_len = 0;
+
+ for (i = 0; i < num_tunnels; i++)
+ {
+ tun_name_len = *deser_tun_names;
+ deser_tun_names += 1;
+ vec_resize (tun_name, tun_name_len);
+ memcpy (tun_name, deser_tun_names, tun_name_len);
+ vec_add1 (a->tunnel_names, tun_name);
+ deser_tun_names += tun_name_len;
+ tun_name = 0;
+ }
+
+ rv = ip6_sr_add_del_policy (a);
+
+out:
+
+ REPLY_MACRO (VL_API_SR_POLICY_ADD_DEL_REPLY);
+#endif
+}
+
+static void vl_api_sr_multicast_map_add_del_t_handler
+ (vl_api_sr_multicast_map_add_del_t * mp)
+{
+#if IP6SR == 0
+ clib_warning ("unimplemented");
+#else
+ ip6_sr_add_del_multicastmap_args_t _a, *a = &_a;
+ int rv = 0;
+ vl_api_sr_multicast_map_add_del_reply_t *rmp;
+
+ memset (a, 0, sizeof (*a));
+ a->is_del = (mp->is_add == 0);
+
+ a->multicast_address = (ip6_address_t *) & mp->multicast_address;
+ a->policy_name = format (0, "%s", mp->policy_name);
+
+ if (a->multicast_address == 0)
+ {
+ rv = -1;
+ goto out;
+ }
+
+ if (!(a->policy_name))
+ {
+ rv = -2;
+ goto out;
+ }
+
+#if DPDK > 0 /* Cannot call replicate without DPDK */
+ rv = ip6_sr_add_del_multicastmap (a);
+#else
+ clib_warning ("multicast replication without DPDK not implemented");
+ rv = VNET_API_ERROR_UNIMPLEMENTED;
+#endif /* DPDK */
+
+out:
+
+ REPLY_MACRO (VL_API_SR_MULTICAST_MAP_ADD_DEL_REPLY);
+#endif
+}
+
+/*
+ * 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 tunnel add del msg, so we trace
+ * enough bytes to capture a typical segment list
+ */
+ vl_msg_api_set_handlers (VL_API_SR_TUNNEL_ADD_DEL,
+ "sr_tunnel_add_del",
+ vl_api_sr_tunnel_add_del_t_handler,
+ vl_noop_handler,
+ vl_api_sr_tunnel_add_del_t_endian,
+ vl_api_sr_tunnel_add_del_t_print, 256, 1);
+
+
+ /*
+ * Manually register the sr policy add del msg, so we trace
+ * enough bytes to capture a typical tunnel name list
+ */
+ vl_msg_api_set_handlers (VL_API_SR_POLICY_ADD_DEL,
+ "sr_policy_add_del",
+ vl_api_sr_policy_add_del_t_handler,
+ vl_noop_handler,
+ vl_api_sr_policy_add_del_t_endian,
+ vl_api_sr_policy_add_del_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:
+ */