From 465c087c58e356426588e5387fff133715a8762d Mon Sep 17 00:00:00 2001 From: Marco Varlese Date: Thu, 1 Mar 2018 14:01:46 +0100 Subject: SCTP: API to delete a sub-connection This patch adds an API to delete a sub-connection following a SRC/DST IP mapping as required by the RFC4960. Change-Id: I7673dd07352557442ffeed6c6c00da274b24953d Signed-off-by: Marco Varlese --- src/vnet/sctp/sctp.c | 70 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) (limited to 'src/vnet/sctp/sctp.c') diff --git a/src/vnet/sctp/sctp.c b/src/vnet/sctp/sctp.c index b1186a62052..cc70f7ccd8d 100644 --- a/src/vnet/sctp/sctp.c +++ b/src/vnet/sctp/sctp.c @@ -305,6 +305,40 @@ sctp_sub_connection_add_ip4 (vlib_main_t * vm, return SCTP_ERROR_NONE; } +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, @@ -328,6 +362,42 @@ sctp_sub_connection_add_ip6 (vlib_main_t * vm, return SCTP_ERROR_NONE; } +u8 +sctp_sub_connection_del_ip6 (ip6_address_t * lcl_addr, + ip6_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->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 * sctp_connection_new (u8 thread_index) { -- cgit 1.2.3-korg