Proxy ND (RFC4389 - or a sub-set thereof). This allows the 'emulation' of bridging. That is hosts in one sub-net reachable via differenet interfaces.
Introducate a new API command:
ip6 nd proxy <host-address> <interface>
this indicates 2 things;
1) that host <host-address> is reachable out of interface <interface>. VPP will thus install that route.
2) NS requests sent to <host-address> will be responeded to (i.e. proxied).
Change-Id: I863f967fdb5097ab3b574769c70afdbfc8d5478a
Signed-off-by: Neale Ranns <nranns@cisco.com>
diff --git a/src/vnet/ip/ip_api.c b/src/vnet/ip/ip_api.c
index ab164a5..df9ca93 100644
--- a/src/vnet/ip/ip_api.c
+++ b/src/vnet/ip/ip_api.c
@@ -72,6 +72,9 @@
_(SET_IP_FLOW_HASH,set_ip_flow_hash) \
_(SW_INTERFACE_IP6ND_RA_CONFIG, sw_interface_ip6nd_ra_config) \
_(SW_INTERFACE_IP6ND_RA_PREFIX, sw_interface_ip6nd_ra_prefix) \
+_(IP6ND_PROXY_ADD_DEL, ip6nd_proxy_add_del) \
+_(IP6ND_PROXY_DUMP, ip6nd_proxy_dump) \
+_(IP6ND_PROXY_DETAILS, ip6nd_proxy_details) \
_(SW_INTERFACE_IP6_ENABLE_DISABLE, sw_interface_ip6_enable_disable ) \
_(SW_INTERFACE_IP6_SET_LINK_LOCAL_ADDRESS, \
sw_interface_ip6_set_link_local_address)
@@ -1400,6 +1403,105 @@
}
static void
+send_ip6nd_proxy_details (unix_shared_memory_queue_t * q,
+ u32 context,
+ const ip46_address_t * addr, u32 sw_if_index)
+{
+ vl_api_ip6nd_proxy_details_t *mp;
+
+ mp = vl_msg_api_alloc (sizeof (*mp));
+ memset (mp, 0, sizeof (*mp));
+ mp->_vl_msg_id = ntohs (VL_API_IP6ND_PROXY_DETAILS);
+ mp->context = context;
+ mp->sw_if_index = htonl (sw_if_index);
+ memcpy (mp->address, addr, 16);
+
+ vl_msg_api_send_shmem (q, (u8 *) & mp);
+}
+
+static void
+vl_api_ip6nd_proxy_details_t_handler (vl_api_ip_neighbor_details_t * mp)
+{
+ clib_warning ("BUG");
+}
+
+typedef struct api_ip6nd_proxy_fib_table_walk_ctx_t_
+{
+ u32 *indices;
+} api_ip6nd_proxy_fib_table_walk_ctx_t;
+
+static int
+api_ip6nd_proxy_fib_table_walk (fib_node_index_t fei, void *arg)
+{
+ api_ip6nd_proxy_fib_table_walk_ctx_t *ctx = arg;
+
+ if (fib_entry_is_sourced (fei, FIB_SOURCE_IP6_ND_PROXY))
+ {
+ vec_add1 (ctx->indices, fei);
+ }
+
+ return (1);
+}
+
+static void
+vl_api_ip6nd_proxy_dump_t_handler (vl_api_ip6nd_proxy_dump_t * mp)
+{
+ ip6_main_t *im6 = &ip6_main;
+ fib_table_t *fib_table;
+ api_ip6nd_proxy_fib_table_walk_ctx_t ctx = {
+ .indices = NULL,
+ };
+ fib_node_index_t *feip;
+ fib_prefix_t pfx;
+ unix_shared_memory_queue_t *q;
+
+ q = vl_api_client_index_to_input_queue (mp->client_index);
+ if (q == 0)
+ {
+ return;
+ }
+
+ /* *INDENT-OFF* */
+ pool_foreach (fib_table, im6->fibs,
+ ({
+ fib_table_walk(fib_table->ft_index,
+ FIB_PROTOCOL_IP6,
+ api_ip6nd_proxy_fib_table_walk,
+ &ctx);
+ }));
+ /* *INDENT-ON* */
+
+ vec_sort_with_function (ctx.indices, fib_entry_cmp_for_sort);
+
+ vec_foreach (feip, ctx.indices)
+ {
+ fib_entry_get_prefix (*feip, &pfx);
+
+ send_ip6nd_proxy_details (q,
+ mp->context,
+ &pfx.fp_addr,
+ fib_entry_get_resolving_interface (*feip));
+ }
+
+ vec_free (ctx.indices);
+}
+
+static void
+vl_api_ip6nd_proxy_add_del_t_handler (vl_api_ip6nd_proxy_add_del_t * mp)
+{
+ vl_api_ip6nd_proxy_add_del_reply_t *rmp;
+ int rv = 0;
+
+ VALIDATE_SW_IF_INDEX (mp);
+
+ rv = ip6_neighbor_proxy_add_del (ntohl (mp->sw_if_index),
+ (ip6_address_t *) mp->address, mp->is_del);
+
+ BAD_SW_IF_INDEX_LABEL;
+ REPLY_MACRO (VL_API_IP6ND_PROXY_ADD_DEL_REPLY);
+}
+
+static void
vl_api_sw_interface_ip6_enable_disable_t_handler
(vl_api_sw_interface_ip6_enable_disable_t * mp)
{