fib: Allow the creation of new source on the API
Type: feature
an client can dump the existing sources, examine their
priorities, then define thier own source.
Usefull if a client wants to distingusih between say, static,
ospf, bgp, etc routes it has added over the API.
Signed-off-by: Neale Ranns <nranns@cisco.com>
Signed-off-by: Alexander Chernavin <achernavin@netgate.com>
Change-Id: I5158b4fa1ebe87381ff8707bb173217f56ea274a
diff --git a/src/vnet/ip/ip_api.c b/src/vnet/ip/ip_api.c
index 5b87f7c..91b12e5 100644
--- a/src/vnet/ip/ip_api.c
+++ b/src/vnet/ip/ip_api.c
@@ -72,6 +72,7 @@
_ (SW_INTERFACE_IP6_ENABLE_DISABLE, sw_interface_ip6_enable_disable) \
_ (IP_TABLE_DUMP, ip_table_dump) \
_ (IP_ROUTE_DUMP, ip_route_dump) \
+ _ (IP_ROUTE_V2_DUMP, ip_route_v2_dump) \
_ (IP_MTABLE_DUMP, ip_mtable_dump) \
_ (IP_MROUTE_DUMP, ip_mroute_dump) \
_ (IP_MROUTE_ADD_DEL, ip_mroute_add_del) \
@@ -83,7 +84,9 @@
_ (IP_TABLE_REPLACE_END, ip_table_replace_end) \
_ (IP_TABLE_FLUSH, ip_table_flush) \
_ (IP_ROUTE_ADD_DEL, ip_route_add_del) \
+ _ (IP_ROUTE_ADD_DEL_V2, ip_route_add_del_v2) \
_ (IP_ROUTE_LOOKUP, ip_route_lookup) \
+ _ (IP_ROUTE_LOOKUP_V2, ip_route_lookup_v2) \
_ (IP_TABLE_ADD_DEL, ip_table_add_del) \
_ (IP_PUNT_POLICE, ip_punt_police) \
_ (IP_PUNT_REDIRECT, ip_punt_redirect) \
@@ -235,6 +238,47 @@
vec_free (rpaths);
}
+static void
+send_ip_route_v2_details (vpe_api_main_t *am, vl_api_registration_t *reg,
+ u32 context, fib_node_index_t fib_entry_index)
+{
+ fib_route_path_t *rpaths, *rpath;
+ vl_api_ip_route_v2_details_t *mp;
+ const fib_prefix_t *pfx;
+ vl_api_fib_path_t *fp;
+ int path_count;
+
+ rpaths = NULL;
+ pfx = fib_entry_get_prefix (fib_entry_index);
+ rpaths = fib_entry_encode (fib_entry_index);
+
+ path_count = vec_len (rpaths);
+ mp = vl_msg_api_alloc (sizeof (*mp) + path_count * sizeof (*fp));
+ if (!mp)
+ return;
+ clib_memset (mp, 0, sizeof (*mp));
+ mp->_vl_msg_id = ntohs (VL_API_IP_ROUTE_V2_DETAILS);
+ mp->context = context;
+
+ ip_prefix_encode (pfx, &mp->route.prefix);
+ mp->route.table_id = htonl (fib_table_get_table_id (
+ fib_entry_get_fib_index (fib_entry_index), pfx->fp_proto));
+ mp->route.n_paths = path_count;
+ mp->route.src = fib_entry_get_best_source (fib_entry_index);
+ mp->route.stats_index = htonl (fib_table_entry_get_stats_index (
+ fib_entry_get_fib_index (fib_entry_index), pfx));
+
+ fp = mp->route.paths;
+ vec_foreach (rpath, rpaths)
+ {
+ fib_api_path_encode (rpath, fp);
+ fp++;
+ }
+
+ vl_api_send_msg (reg, (u8 *) mp);
+ vec_free (rpaths);
+}
+
typedef struct apt_ip6_fib_show_ctx_t_
{
fib_node_index_t *entries;
@@ -274,6 +318,45 @@
}
static void
+vl_api_ip_route_v2_dump_t_handler (vl_api_ip_route_v2_dump_t *mp)
+{
+ vpe_api_main_t *am = &vpe_api_main;
+ fib_node_index_t *fib_entry_index;
+ vl_api_registration_t *reg;
+ fib_protocol_t fproto;
+ fib_source_t src;
+ u32 fib_index;
+
+ reg = vl_api_client_index_to_registration (mp->client_index);
+ if (!reg)
+ return;
+
+ vl_api_ip_fib_dump_walk_ctx_t ctx = {
+ .feis = NULL,
+ };
+
+ fproto = (mp->table.is_ip6 ? FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4);
+ fib_index = fib_table_find (fproto, ntohl (mp->table.table_id));
+ src = mp->src;
+
+ if (INDEX_INVALID == fib_index)
+ return;
+
+ if (src)
+ fib_table_walk_w_src (fib_index, fproto, src, vl_api_ip_fib_dump_walk,
+ &ctx);
+ else
+ fib_table_walk (fib_index, fproto, vl_api_ip_fib_dump_walk, &ctx);
+
+ vec_foreach (fib_entry_index, ctx.feis)
+ {
+ send_ip_route_v2_details (am, reg, mp->context, *fib_entry_index);
+ }
+
+ vec_free (ctx.feis);
+}
+
+static void
send_ip_mtable_details (vl_api_registration_t * reg,
u32 context, const mfib_table_t * mfib_table)
{
@@ -584,9 +667,60 @@
goto out;
}
- rv = fib_api_route_add_del (mp->is_add,
- mp->is_multipath,
- fib_index, &pfx, entry_flags, rpaths);
+ rv = fib_api_route_add_del (mp->is_add, mp->is_multipath, fib_index, &pfx,
+ FIB_SOURCE_API, entry_flags, rpaths);
+
+ if (mp->is_add && 0 == rv)
+ *stats_index = fib_table_entry_get_stats_index (fib_index, &pfx);
+
+out:
+ vec_free (rpaths);
+
+ return (rv);
+}
+
+static int
+ip_route_add_del_v2_t_handler (vl_api_ip_route_add_del_v2_t *mp,
+ u32 *stats_index)
+{
+ fib_route_path_t *rpaths = NULL, *rpath;
+ fib_entry_flag_t entry_flags;
+ vl_api_fib_path_t *apath;
+ fib_source_t src;
+ fib_prefix_t pfx;
+ u32 fib_index;
+ int rv, ii;
+
+ entry_flags = FIB_ENTRY_FLAG_NONE;
+ ip_prefix_decode (&mp->route.prefix, &pfx);
+
+ rv = fib_api_table_id_decode (pfx.fp_proto, ntohl (mp->route.table_id),
+ &fib_index);
+ if (0 != rv)
+ goto out;
+
+ if (0 != mp->route.n_paths)
+ vec_validate (rpaths, mp->route.n_paths - 1);
+
+ for (ii = 0; ii < mp->route.n_paths; ii++)
+ {
+ apath = &mp->route.paths[ii];
+ rpath = &rpaths[ii];
+
+ rv = fib_api_path_decode (apath, rpath);
+
+ if ((rpath->frp_flags & FIB_ROUTE_PATH_LOCAL) &&
+ (~0 == rpath->frp_sw_if_index))
+ entry_flags |= (FIB_ENTRY_FLAG_CONNECTED | FIB_ENTRY_FLAG_LOCAL);
+
+ if (0 != rv)
+ goto out;
+ }
+
+ src = (0 == mp->route.src ? FIB_SOURCE_API : mp->route.src);
+
+ rv = fib_api_route_add_del (mp->is_add, mp->is_multipath, fib_index, &pfx,
+ src, entry_flags, rpaths);
if (mp->is_add && 0 == rv)
*stats_index = fib_table_entry_get_stats_index (fib_index, &pfx);
@@ -615,6 +749,23 @@
}
void
+vl_api_ip_route_add_del_v2_t_handler (vl_api_ip_route_add_del_v2_t *mp)
+{
+ vl_api_ip_route_add_del_v2_reply_t *rmp;
+ u32 stats_index = ~0;
+ int rv;
+
+ rv = ip_route_add_del_v2_t_handler (mp, &stats_index);
+
+ /* clang-format off */
+ REPLY_MACRO2 (VL_API_IP_ROUTE_ADD_DEL_V2_REPLY,
+ ({
+ rmp->stats_index = htonl (stats_index);
+ }))
+ /* clang-format on */
+}
+
+void
vl_api_ip_route_lookup_t_handler (vl_api_ip_route_lookup_t * mp)
{
vl_api_ip_route_lookup_reply_t *rmp = NULL;
@@ -671,6 +822,65 @@
}
void
+vl_api_ip_route_lookup_v2_t_handler (vl_api_ip_route_lookup_v2_t *mp)
+{
+ vl_api_ip_route_lookup_v2_reply_t *rmp = NULL;
+ fib_route_path_t *rpaths = NULL, *rpath;
+ const fib_prefix_t *pfx = NULL;
+ fib_prefix_t lookup;
+ vl_api_fib_path_t *fp;
+ fib_node_index_t fib_entry_index;
+ u32 fib_index;
+ int npaths = 0;
+ fib_source_t src = 0;
+ int rv;
+
+ ip_prefix_decode (&mp->prefix, &lookup);
+ rv = fib_api_table_id_decode (lookup.fp_proto, ntohl (mp->table_id),
+ &fib_index);
+ if (PREDICT_TRUE (!rv))
+ {
+ if (mp->exact)
+ fib_entry_index = fib_table_lookup_exact_match (fib_index, &lookup);
+ else
+ fib_entry_index = fib_table_lookup (fib_index, &lookup);
+ if (fib_entry_index == FIB_NODE_INDEX_INVALID)
+ rv = VNET_API_ERROR_NO_SUCH_ENTRY;
+ else
+ {
+ pfx = fib_entry_get_prefix (fib_entry_index);
+ rpaths = fib_entry_encode (fib_entry_index);
+ npaths = vec_len (rpaths);
+ src = fib_entry_get_best_source (fib_entry_index);
+ }
+ }
+
+ /* clang-format off */
+ REPLY_MACRO3_ZERO(VL_API_IP_ROUTE_LOOKUP_V2_REPLY,
+ npaths * sizeof (*fp),
+ ({
+ if (!rv)
+ {
+ ip_prefix_encode (pfx, &rmp->route.prefix);
+ rmp->route.table_id = mp->table_id;
+ rmp->route.n_paths = npaths;
+ rmp->route.src = src;
+ rmp->route.stats_index = fib_table_entry_get_stats_index (fib_index, pfx);
+ rmp->route.stats_index = htonl (rmp->route.stats_index);
+
+ fp = rmp->route.paths;
+ vec_foreach (rpath, rpaths)
+ {
+ fib_api_path_encode (rpath, fp);
+ fp++;
+ }
+ }
+ }));
+ /* clang-format on */
+ vec_free (rpaths);
+}
+
+void
ip_table_create (fib_protocol_t fproto,
u32 table_id, u8 is_api, const u8 * name)
{
@@ -1797,6 +2007,8 @@
*/
am->is_mp_safe[VL_API_IP_ROUTE_ADD_DEL] = 1;
am->is_mp_safe[VL_API_IP_ROUTE_ADD_DEL_REPLY] = 1;
+ am->is_mp_safe[VL_API_IP_ROUTE_ADD_DEL_V2] = 1;
+ am->is_mp_safe[VL_API_IP_ROUTE_ADD_DEL_V2_REPLY] = 1;
/*
* Set up the (msg_name, crc, message-id) table