X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Fsctp%2Fsctp.c;h=cc70f7ccd8de58758c126fcdeb87efdf8c8c100d;hb=465c087;hp=4643e8e900a7150445bf892ef74a77c4e8c4c5a7;hpb=15cc6a83f1369d77955bc5cb2d398f43f8100e69;p=vpp.git

diff --git a/src/vnet/sctp/sctp.c b/src/vnet/sctp/sctp.c
index 4643e8e900a..cc70f7ccd8d 100644
--- a/src/vnet/sctp/sctp.c
+++ b/src/vnet/sctp/sctp.c
@@ -27,7 +27,8 @@ sctp_connection_bind (u32 session_index, transport_endpoint_t * tep)
   pool_get (tm->listener_pool, listener);
   memset (listener, 0, sizeof (*listener));
 
-  listener->sub_conn[MAIN_SCTP_SUB_CONN_IDX].parent = listener;
+  listener->sub_conn[MAIN_SCTP_SUB_CONN_IDX].subconn_idx =
+    MAIN_SCTP_SUB_CONN_IDX;
   listener->sub_conn[MAIN_SCTP_SUB_CONN_IDX].c_c_index =
     listener - tm->listener_pool;
   listener->sub_conn[MAIN_SCTP_SUB_CONN_IDX].connection.lcl_port = tep->port;
@@ -269,37 +270,132 @@ sctp_sub_connection_add (u8 thread_index)
   sctp_main_t *tm = vnet_get_sctp_main ();
   sctp_connection_t *sctp_conn = tm->connections[thread_index];
 
-  sctp_conn->sub_conn[sctp_conn->next_avail_sub_conn].connection.c_index =
-    sctp_conn->sub_conn[MAIN_SCTP_SUB_CONN_IDX].connection.c_index;
-  sctp_conn->sub_conn[sctp_conn->next_avail_sub_conn].
-    connection.thread_index = thread_index;
-  sctp_conn->sub_conn[sctp_conn->next_avail_sub_conn].parent = sctp_conn;
+  u8 subconn_idx = sctp_next_avail_subconn (sctp_conn);
+
+  ASSERT (subconn_idx < MAX_SCTP_CONNECTIONS);
 
-  sctp_conn->next_avail_sub_conn += 1;
+  sctp_conn->sub_conn[subconn_idx].connection.c_index =
+    sctp_conn->sub_conn[MAIN_SCTP_SUB_CONN_IDX].connection.c_index;
+  sctp_conn->sub_conn[subconn_idx].connection.thread_index = thread_index;
+  sctp_conn->sub_conn[subconn_idx].subconn_idx = subconn_idx;
 
   return sctp_conn;
 }
 
-void
-sctp_sub_connection_add_ip4 (u8 thread_index,
-			     sctp_ipv4_addr_param_t * ipv4_addr)
+u8
+sctp_sub_connection_add_ip4 (vlib_main_t * vm,
+			     ip4_address_t * lcl_addr,
+			     ip4_address_t * rmt_addr)
 {
-  sctp_connection_t *sctp_conn = sctp_sub_connection_add (thread_index);
+  sctp_connection_t *sctp_conn = sctp_sub_connection_add (vm->thread_index);
+
+  u8 subconn_idx = sctp_next_avail_subconn (sctp_conn);
+
+  if (subconn_idx == MAX_SCTP_CONNECTIONS)
+    return SCTP_ERROR_MAX_CONNECTIONS;
+
+  clib_memcpy (&sctp_conn->sub_conn[subconn_idx].connection.lcl_ip,
+	       &lcl_addr, sizeof (lcl_addr));
 
-  clib_memcpy (&sctp_conn->
-	       sub_conn[sctp_conn->next_avail_sub_conn].connection.lcl_ip.ip4,
-	       &ipv4_addr->address, sizeof (ipv4_addr->address));
+  clib_memcpy (&sctp_conn->sub_conn[subconn_idx].connection.rmt_ip,
+	       &rmt_addr, sizeof (rmt_addr));
+
+  sctp_conn->forming_association_changed = 1;
+
+  return SCTP_ERROR_NONE;
 }
 
-void
-sctp_sub_connection_add_ip6 (u8 thread_index,
-			     sctp_ipv6_addr_param_t * ipv6_addr)
+u8
+sctp_sub_connection_del_ip4 (ip4_address_t * lcl_addr,
+			     ip4_address_t * rmt_addr)
+{
+  sctp_main_t *sctp_main = vnet_get_sctp_main ();
+
+  u32 thread_idx = vlib_get_thread_index ();
+  u8 i;
+
+  ASSERT (thread_idx == 0);
+
+  for (i = 0; i < MAX_SCTP_CONNECTIONS; i++)
+    {
+      sctp_connection_t *sctp_conn = sctp_main->connections[thread_idx];
+      sctp_sub_connection_t *sub_conn =
+	&sctp_main->connections[thread_idx]->sub_conn[i];
+      ip46_address_t *lcl_ip =
+	&sctp_main->connections[thread_idx]->sub_conn[i].connection.lcl_ip;
+      ip46_address_t *rmt_ip =
+	&sctp_main->connections[thread_idx]->sub_conn[i].connection.rmt_ip;
+
+      if (!sub_conn->connection.is_ip4)
+	continue;
+      if (lcl_ip->ip4.as_u32 == lcl_addr->as_u32 &&
+	  rmt_ip->ip4.as_u32 == rmt_addr->as_u32)
+	{
+	  sub_conn->state = SCTP_SUBCONN_STATE_DOWN;
+	  sctp_conn->forming_association_changed = 1;
+	  break;
+	}
+    }
+  return SCTP_ERROR_NONE;
+}
+
+u8
+sctp_sub_connection_add_ip6 (vlib_main_t * vm,
+			     ip6_address_t * lcl_addr,
+			     ip6_address_t * rmt_addr)
+{
+  sctp_connection_t *sctp_conn = sctp_sub_connection_add (vm->thread_index);
+
+  u8 subconn_idx = sctp_next_avail_subconn (sctp_conn);
+
+  if (subconn_idx == MAX_SCTP_CONNECTIONS)
+    return SCTP_ERROR_MAX_CONNECTIONS;
+
+  clib_memcpy (&sctp_conn->sub_conn[subconn_idx].connection.lcl_ip,
+	       &lcl_addr, sizeof (lcl_addr));
+
+  clib_memcpy (&sctp_conn->sub_conn[subconn_idx].connection.rmt_ip,
+	       &rmt_addr, sizeof (rmt_addr));
+
+  sctp_conn->forming_association_changed = 1;
+
+  return SCTP_ERROR_NONE;
+}
+
+u8
+sctp_sub_connection_del_ip6 (ip6_address_t * lcl_addr,
+			     ip6_address_t * rmt_addr)
 {
-  sctp_connection_t *sctp_conn = sctp_sub_connection_add (thread_index);
+  sctp_main_t *sctp_main = vnet_get_sctp_main ();
 
-  clib_memcpy (&sctp_conn->
-	       sub_conn[sctp_conn->next_avail_sub_conn].connection.lcl_ip.ip6,
-	       &ipv6_addr->address, sizeof (ipv6_addr->address));
+  u32 thread_idx = vlib_get_thread_index ();
+  u8 i;
+
+  ASSERT (thread_idx == 0);
+
+  for (i = 0; i < MAX_SCTP_CONNECTIONS; i++)
+    {
+      sctp_connection_t *sctp_conn = sctp_main->connections[thread_idx];
+      sctp_sub_connection_t *sub_conn =
+	&sctp_main->connections[thread_idx]->sub_conn[i];
+      ip46_address_t *lcl_ip =
+	&sctp_main->connections[thread_idx]->sub_conn[i].connection.lcl_ip;
+      ip46_address_t *rmt_ip =
+	&sctp_main->connections[thread_idx]->sub_conn[i].connection.rmt_ip;
+
+      if (!sub_conn->connection.is_ip4)
+	continue;
+      if ((lcl_ip->ip6.as_u64[0] == lcl_addr->as_u64[0]
+	   && lcl_ip->ip6.as_u64[1] == lcl_addr->as_u64[1])
+	  && (rmt_ip->ip6.as_u64[0] == rmt_addr->as_u64[0]
+	      && rmt_ip->ip6.as_u64[1] == rmt_addr->as_u64[1]))
+	{
+	  sub_conn->state = SCTP_SUBCONN_STATE_DOWN;
+	  sctp_conn->forming_association_changed = 1;
+	  break;
+	}
+    }
+  return SCTP_ERROR_NONE;
 }
 
 sctp_connection_t *
@@ -310,12 +406,12 @@ sctp_connection_new (u8 thread_index)
 
   pool_get (sctp_main->connections[thread_index], sctp_conn);
   memset (sctp_conn, 0, sizeof (*sctp_conn));
-  sctp_conn->sub_conn[MAIN_SCTP_SUB_CONN_IDX].parent = sctp_conn;
+  sctp_conn->sub_conn[MAIN_SCTP_SUB_CONN_IDX].subconn_idx =
+    MAIN_SCTP_SUB_CONN_IDX;
   sctp_conn->sub_conn[MAIN_SCTP_SUB_CONN_IDX].c_c_index =
     sctp_conn - sctp_main->connections[thread_index];
   sctp_conn->sub_conn[MAIN_SCTP_SUB_CONN_IDX].c_thread_index = thread_index;
   sctp_conn->local_tag = 0;
-  sctp_conn->next_avail_sub_conn = 1;
 
   return sctp_conn;
 }
@@ -330,7 +426,8 @@ sctp_half_open_connection_new (u8 thread_index)
   memset (sctp_conn, 0, sizeof (*sctp_conn));
   sctp_conn->sub_conn[MAIN_SCTP_SUB_CONN_IDX].c_c_index =
     sctp_conn - tm->half_open_connections;
-  sctp_conn->sub_conn[MAIN_SCTP_SUB_CONN_IDX].parent = sctp_conn;
+  sctp_conn->sub_conn[MAIN_SCTP_SUB_CONN_IDX].subconn_idx =
+    MAIN_SCTP_SUB_CONN_IDX;
   return sctp_conn;
 }
 
@@ -374,7 +471,7 @@ sctp_connection_open (transport_endpoint_t * rmt)
   transport_connection_t *trans_conn = &sctp_conn->sub_conn[idx].connection;
   ip_copy (&trans_conn->rmt_ip, &rmt->ip, rmt->is_ip4);
   ip_copy (&trans_conn->lcl_ip, &lcl_addr, rmt->is_ip4);
-  sctp_conn->sub_conn[idx].parent = sctp_conn;
+  sctp_conn->sub_conn[idx].subconn_idx = idx;
   trans_conn->rmt_port = rmt->port;
   trans_conn->lcl_port = clib_host_to_net_u16 (lcl_port);
   trans_conn->is_ip4 = rmt->is_ip4;
@@ -409,24 +506,16 @@ sctp_connection_cleanup (sctp_connection_t * sctp_conn)
 				&sctp_conn->sub_conn[i].connection.lcl_ip,
 				sctp_conn->sub_conn[i].connection.lcl_port);
 
-  /* Check if connection is not yet fully established */
-  if (sctp_conn->state == SCTP_STATE_COOKIE_WAIT)
-    {
+  int thread_index =
+    sctp_conn->sub_conn[MAIN_SCTP_SUB_CONN_IDX].connection.thread_index;
 
-    }
-  else
-    {
-      int thread_index =
-	sctp_conn->sub_conn[MAIN_SCTP_SUB_CONN_IDX].connection.thread_index;
+  /* Make sure all timers are cleared */
+  sctp_connection_timers_reset (sctp_conn);
 
-      /* Make sure all timers are cleared */
-      sctp_connection_timers_reset (sctp_conn);
-
-      /* Poison the entry */
-      if (CLIB_DEBUG > 0)
-	memset (sctp_conn, 0xFA, sizeof (*sctp_conn));
-      pool_put (tm->connections[thread_index], sctp_conn);
-    }
+  /* Poison the entry */
+  if (CLIB_DEBUG > 0)
+    memset (sctp_conn, 0xFA, sizeof (*sctp_conn));
+  pool_put (tm->connections[thread_index], sctp_conn);
 }
 
 int
@@ -842,6 +931,8 @@ sctp_init (vlib_main_t * vm)
   transport_register_protocol (TRANSPORT_PROTO_SCTP, &sctp_proto,
 			       FIB_PROTOCOL_IP6, sctp6_output_node.index);
 
+  sctp_api_reference ();
+
   return 0;
 }