diff options
Diffstat (limited to 'src/vnet/sctp/sctp_output.c')
| -rw-r--r-- | src/vnet/sctp/sctp_output.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/src/vnet/sctp/sctp_output.c b/src/vnet/sctp/sctp_output.c index e44451c034c..5e64ca792af 100644 --- a/src/vnet/sctp/sctp_output.c +++ b/src/vnet/sctp/sctp_output.c @@ -591,6 +591,48 @@ sctp_prepare_cookie_echo_chunk (sctp_connection_t * sctp_conn, u8 idx, /** * Convert buffer to ABORT */ +/* +void +sctp_prepare_operation_error (sctp_connection_t * sctp_conn, u8 idx, + vlib_buffer_t * b, ip4_address_t * ip4_addr, + ip6_address_t * ip6_addr) +{ + vlib_main_t *vm = vlib_get_main (); + + sctp_reuse_buffer (vm, b); + + // The minimum size of the message is given by the sctp_operation_error_t + u16 alloc_bytes = sizeof (sctp_operation_error_t); + + // As per RFC 4960 the chunk_length value does NOT contemplate + // the size of the first header (see sctp_header_t) and any padding + // + u16 chunk_len = alloc_bytes - sizeof (sctp_header_t); + + alloc_bytes += vnet_sctp_calculate_padding (alloc_bytes); + + sctp_operation_error_t *err_chunk = + vlib_buffer_push_uninit (b, alloc_bytes); + + // src_port & dst_port are already in network byte-order + err_chunk->sctp_hdr.checksum = 0; + err_chunk->sctp_hdr.src_port = sctp_conn->sub_conn[idx].connection.lcl_port; + err_chunk->sctp_hdr.dst_port = sctp_conn->sub_conn[idx].connection.rmt_port; + // As per RFC4960 Section 5.2.2: copy the INITIATE_TAG into the VERIFICATION_TAG of the ABORT chunk + err_chunk->sctp_hdr.verification_tag = sctp_conn->local_tag; + + vnet_sctp_set_chunk_type (&err_chunk->chunk_hdr, OPERATION_ERROR); + vnet_sctp_set_chunk_length (&err_chunk->chunk_hdr, chunk_len); + + vnet_buffer (b)->sctp.connection_index = + sctp_conn->sub_conn[idx].connection.c_index; + vnet_buffer (b)->sctp.subconn_idx = idx; +} +*/ + +/** + * Convert buffer to ABORT + */ void sctp_prepare_abort_for_collision (sctp_connection_t * sctp_conn, u8 idx, vlib_buffer_t * b, ip4_address_t * ip4_addr, |