From b3caf66be997ef293805c250a48e86f78468200b Mon Sep 17 00:00:00 2001 From: Marco Varlese Date: Tue, 17 Apr 2018 16:41:51 +0200 Subject: SCTP: coverity scan warnings This patch addresses 182346, 182347, 182353. Change-Id: I59c3d74bd3a2122b836c93e22ddb632fa032f7fe Signed-off-by: Marco Varlese (cherry picked from commit 216c35b2c6e5b4a728675f5141241420841cda34) --- src/vnet/sctp/sctp.h | 17 ++++++++--------- src/vnet/sctp/sctp_input.c | 46 +++++++++++++++++++++++++++------------------ src/vnet/sctp/sctp_output.c | 6 +++--- 3 files changed, 39 insertions(+), 30 deletions(-) (limited to 'src') diff --git a/src/vnet/sctp/sctp.h b/src/vnet/sctp/sctp.h index d9b2f569e4a..ffe3e1b195f 100644 --- a/src/vnet/sctp/sctp.h +++ b/src/vnet/sctp/sctp.h @@ -312,19 +312,18 @@ void sctp_init_mss (sctp_connection_t * sctp_conn); void sctp_prepare_initack_chunk (sctp_connection_t * sctp_conn, u8 idx, vlib_buffer_t * b, ip4_address_t * ip4_addr, - ip6_address_t * ip6_addr); -void -sctp_prepare_initack_chunk_for_collision (sctp_connection_t * sctp_conn, - u8 idx, vlib_buffer_t * b, - ip4_address_t * ip4_addr, - ip6_address_t * ip6_addr); + u8 add_ip4, ip6_address_t * ip6_addr, + u8 add_ip6); +void sctp_prepare_initack_chunk_for_collision (sctp_connection_t * sctp_conn, + u8 idx, vlib_buffer_t * b, + ip4_address_t * ip4_addr, + ip6_address_t * ip6_addr); void sctp_prepare_abort_for_collision (sctp_connection_t * sctp_conn, u8 idx, vlib_buffer_t * b, ip4_address_t * ip4_addr, ip6_address_t * ip6_addr); -void -sctp_prepare_operation_error (sctp_connection_t * sctp_conn, u8 idx, - vlib_buffer_t * b, u8 err_cause); +void sctp_prepare_operation_error (sctp_connection_t * sctp_conn, u8 idx, + vlib_buffer_t * b, u8 err_cause); void sctp_prepare_cookie_echo_chunk (sctp_connection_t * sctp_conn, u8 idx, vlib_buffer_t * b, u8 reuse_buffer); void sctp_prepare_cookie_ack_chunk (sctp_connection_t * sctp_conn, u8 idx, diff --git a/src/vnet/sctp/sctp_input.c b/src/vnet/sctp/sctp_input.c index 775d14ae21a..ff79840f9fb 100644 --- a/src/vnet/sctp/sctp_input.c +++ b/src/vnet/sctp/sctp_input.c @@ -319,8 +319,10 @@ sctp_handle_init (sctp_header_t * sctp_hdr, u16 sctp_implied_length) { sctp_init_chunk_t *init_chunk = (sctp_init_chunk_t *) (sctp_hdr); - ip4_address_t *ip4_addr = 0; - ip6_address_t *ip6_addr = 0; + ip4_address_t ip4_addr; + ip6_address_t ip6_addr; + u8 add_ip4 = 0; + u8 add_ip6 = 0; char hostname[FQDN_MAX_LENGTH]; /* Check the current state of the connection @@ -338,7 +340,7 @@ sctp_handle_init (sctp_header_t * sctp_hdr, SCTP_ADV_DBG ("Received INIT chunk while in COOKIE_WAIT state"); sctp_prepare_initack_chunk_for_collision (sctp_conn, SCTP_PRIMARY_PATH_IDX, - b0, ip4_addr, ip6_addr); + b0, &ip4_addr, &ip6_addr); return SCTP_ERROR_NONE; case SCTP_STATE_COOKIE_ECHOED: case SCTP_STATE_SHUTDOWN_ACK_SENT: @@ -346,11 +348,12 @@ sctp_handle_init (sctp_header_t * sctp_hdr, if (sctp_conn->forming_association_changed == 0) sctp_prepare_initack_chunk_for_collision (sctp_conn, SCTP_PRIMARY_PATH_IDX, - b0, ip4_addr, ip6_addr); + b0, &ip4_addr, + &ip6_addr); else sctp_prepare_abort_for_collision (sctp_conn, SCTP_PRIMARY_PATH_IDX, b0, - ip4_addr, ip6_addr); + &ip4_addr, &ip6_addr); return SCTP_ERROR_NONE; } } @@ -395,13 +398,16 @@ sctp_handle_init (sctp_header_t * sctp_hdr, { sctp_ipv4_addr_param_t *ipv4 = (sctp_ipv4_addr_param_t *) opt_params_hdr; - clib_memcpy (ip4_addr, &ipv4->address, + clib_memcpy (&ip4_addr, &ipv4->address, sizeof (ip4_address_t)); - sctp_sub_connection_add_ip4 (vlib_get_main (), - &sctp_conn->sub_conn - [SCTP_PRIMARY_PATH_IDX].connection. - lcl_ip.ip4, &ipv4->address); + if (sctp_sub_connection_add_ip4 (vlib_get_main (), + &sctp_conn->sub_conn + [SCTP_PRIMARY_PATH_IDX].connection. + lcl_ip.ip4, + &ipv4->address) == + SCTP_ERROR_NONE) + add_ip4 = 1; break; } @@ -409,13 +415,16 @@ sctp_handle_init (sctp_header_t * sctp_hdr, { sctp_ipv6_addr_param_t *ipv6 = (sctp_ipv6_addr_param_t *) opt_params_hdr; - clib_memcpy (ip6_addr, &ipv6->address, + clib_memcpy (&ip6_addr, &ipv6->address, sizeof (ip6_address_t)); - sctp_sub_connection_add_ip6 (vlib_get_main (), - &sctp_conn->sub_conn - [SCTP_PRIMARY_PATH_IDX].connection. - lcl_ip.ip6, &ipv6->address); + if (sctp_sub_connection_add_ip6 (vlib_get_main (), + &sctp_conn->sub_conn + [SCTP_PRIMARY_PATH_IDX].connection. + lcl_ip.ip6, + &ipv6->address) == + SCTP_ERROR_NONE) + add_ip6 = 1; break; } @@ -446,8 +455,8 @@ sctp_handle_init (sctp_header_t * sctp_hdr, } /* Reuse buffer to make init-ack and send */ - sctp_prepare_initack_chunk (sctp_conn, SCTP_PRIMARY_PATH_IDX, b0, ip4_addr, - ip6_addr); + sctp_prepare_initack_chunk (sctp_conn, SCTP_PRIMARY_PATH_IDX, b0, &ip4_addr, + add_ip4, &ip6_addr, add_ip6); return SCTP_ERROR_NONE; } @@ -1692,7 +1701,8 @@ sctp46_listen_process_inline (vlib_main_t * vm, sctp_chunks_common_hdr_t *sctp_chunk_hdr = &full_hdr->common_hdr; u8 chunk_type = vnet_sctp_get_chunk_type (sctp_chunk_hdr); - if (chunk_type != INIT) + if (chunk_type != INIT && chunk_type != DATA + && chunk_type != OPERATION_ERROR) { SCTP_DBG ("conn_index = %u: chunk_type != INIT... chunk_type=%s", diff --git a/src/vnet/sctp/sctp_output.c b/src/vnet/sctp/sctp_output.c index 8ce94c6f3a2..e2738e90c09 100644 --- a/src/vnet/sctp/sctp_output.c +++ b/src/vnet/sctp/sctp_output.c @@ -868,7 +868,7 @@ sctp_prepare_initack_chunk_for_collision (sctp_connection_t * sctp_conn, void sctp_prepare_initack_chunk (sctp_connection_t * sctp_conn, u8 idx, vlib_buffer_t * b, ip4_address_t * ip4_addr, - ip6_address_t * ip6_addr) + u8 add_ip4, ip6_address_t * ip6_addr, u8 add_ip6) { vlib_main_t *vm = vlib_get_main (); sctp_ipv4_addr_param_t *ip4_param = 0; @@ -881,12 +881,12 @@ sctp_prepare_initack_chunk (sctp_connection_t * sctp_conn, u8 idx, u16 alloc_bytes = sizeof (sctp_init_ack_chunk_t) + sizeof (sctp_state_cookie_param_t); - if (PREDICT_TRUE (ip4_addr != NULL)) + if (PREDICT_FALSE (add_ip4 == 1)) { /* Create room for variable-length fields in the INIT_ACK chunk */ alloc_bytes += SCTP_IPV4_ADDRESS_TYPE_LENGTH; } - if (PREDICT_TRUE (ip6_addr != NULL)) + if (PREDICT_FALSE (add_ip6 == 1)) { /* Create room for variable-length fields in the INIT_ACK chunk */ alloc_bytes += SCTP_IPV6_ADDRESS_TYPE_LENGTH; -- cgit 1.2.3-korg