From b2bcad6238b7e8a669ae29c74079eb9bb9fbb694 Mon Sep 17 00:00:00 2001 From: Chris Luke Date: Mon, 18 Sep 2017 08:51:22 -0400 Subject: Fixes for issues Coverity has reported (VPP-972) 177117: fstat() returns -1 on error; the code is checking for any positive value instead 175142: final return could never be reached; simple refactoring 175235,175236: Warning suppressed with an explicit cast to (void) 174817: Final return couldn't be reached; is is_in_order is 0 then 'rv' is already returned above 172095,172093: If is_is_set does not get set to 1, then return 0 has already been invoked 174405: Re-kill this (nothing sets rv) 171136: Looks like a cmd line flag to set test_bytes was missing; added it, and refactored the argc/argv processing to avoid two other potential segv's 176813: Add range checking for term width/height. First stab at a reasonable range is 1-512 for both. 175350: Fix implicit casting in shift operation 174272: Not a c+p error; try using a coverity annotation to ignore it 174273,175320: Annotated FORWARD_NULL Change-Id: I58d0f860fc2209f59f8d1b6b344d631b8d429ace Signed-off-by: Chris Luke --- src/vnet/mpls/mpls_api.c | 2 +- src/vnet/session/session.c | 5 +---- src/vnet/session/session_cli.c | 37 +++++++------------------------------ src/vnet/session/session_lookup.c | 8 ++++---- 4 files changed, 13 insertions(+), 39 deletions(-) (limited to 'src/vnet') diff --git a/src/vnet/mpls/mpls_api.c b/src/vnet/mpls/mpls_api.c index 988c2c98232..762c40ffa8f 100644 --- a/src/vnet/mpls/mpls_api.c +++ b/src/vnet/mpls/mpls_api.c @@ -96,7 +96,7 @@ vl_api_mpls_table_add_del_t_handler (vl_api_mpls_table_add_del_t * mp) else mpls_table_delete (ntohl (mp->mt_table_id), 1); - rv = (rv == 0) ? vnm->api_errno : rv; + // NB: Nothing sets rv; none of the above returns an error REPLY_MACRO (VL_API_MPLS_TABLE_ADD_DEL_REPLY); } diff --git a/src/vnet/session/session.c b/src/vnet/session/session.c index 4544f9a0f93..792e6612dc1 100644 --- a/src/vnet/session/session.c +++ b/src/vnet/session/session.c @@ -267,10 +267,7 @@ stream_session_enqueue_data (transport_connection_t * tc, vlib_buffer_t * b, } } - if (is_in_order) - return enqueued; - - return 0; + return enqueued; } /** Check if we have space in rx fifo to push more bytes */ diff --git a/src/vnet/session/session_cli.c b/src/vnet/session/session_cli.c index d9f516beab9..8c30a1df7eb 100755 --- a/src/vnet/session/session_cli.c +++ b/src/vnet/session/session_cli.c @@ -127,13 +127,8 @@ unformat_stream_session_id (unformat_input_t * input, va_list * args) *is_ip4 = 0; tuple_is_set = 1; } - else - return 0; - - if (tuple_is_set) - return 1; - return 0; + return tuple_is_set; } uword @@ -144,21 +139,12 @@ unformat_stream_session (unformat_input_t * input, va_list * args) u8 proto = ~0; ip46_address_t lcl, rmt; u32 lcl_port = 0, rmt_port = 0; - u8 is_ip4 = 0, s_type = ~0, id_is_set = 0; + u8 is_ip4 = 0, s_type = ~0; - if (unformat (input, "%U", unformat_stream_session_id, &proto, &lcl, &rmt, - &lcl_port, &rmt_port, &is_ip4)) - { - id_is_set = 1; - } - else + if (!unformat (input, "%U", unformat_stream_session_id, &proto, &lcl, &rmt, + &lcl_port, &rmt_port, &is_ip4)) return 0; - if (!id_is_set) - { - return 0; - } - s_type = session_type_from_proto_and_ip (proto, is_ip4); if (is_ip4) s = stream_session_lookup4 (&lcl.ip4, &rmt.ip4, @@ -185,21 +171,12 @@ unformat_transport_connection (unformat_input_t * input, va_list * args) u8 proto = ~0; ip46_address_t lcl, rmt; u32 lcl_port = 0, rmt_port = 0; - u8 is_ip4 = 0, s_type = ~0, id_is_set = 0; + u8 is_ip4 = 0, s_type = ~0; - if (unformat (input, "%U", unformat_stream_session_id, &proto, &lcl, &rmt, - &lcl_port, &rmt_port, &is_ip4)) - { - id_is_set = 1; - } - else + if (!unformat (input, "%U", unformat_stream_session_id, &proto, &lcl, &rmt, + &lcl_port, &rmt_port, &is_ip4)) return 0; - if (!id_is_set) - { - return 0; - } - proto = (proto == (u8) ~ 0) ? suggested_proto : proto; if (proto == (u8) ~ 0) return 0; diff --git a/src/vnet/session/session_lookup.c b/src/vnet/session/session_lookup.c index 0f9abf9aa74..4487b1c305f 100644 --- a/src/vnet/session/session_lookup.c +++ b/src/vnet/session/session_lookup.c @@ -233,15 +233,15 @@ stream_session_half_open_table_add (transport_connection_t * tc, u64 value) { make_v4_ss_kv_from_tc (&kv4, tc); kv4.value = value; - clib_bihash_add_del_16_8 (&sl->v4_half_open_hash, &kv4, - 1 /* is_add */ ); + (void) clib_bihash_add_del_16_8 (&sl->v4_half_open_hash, &kv4, + 1 /* is_add */ ); } else { make_v6_ss_kv_from_tc (&kv6, tc); kv6.value = value; - clib_bihash_add_del_48_8 (&sl->v6_half_open_hash, &kv6, - 1 /* is_add */ ); + (void) clib_bihash_add_del_48_8 (&sl->v6_half_open_hash, &kv6, + 1 /* is_add */ ); } } -- cgit 1.2.3-korg