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authorDamjan Marion <damarion@cisco.com>2022-04-04 22:40:45 +0200
committerDamjan Marion <dmarion@me.com>2022-04-04 23:17:13 +0000
commit8bea589cfe0fca1a6f560e16ca66a4cf199041a2 (patch)
treecf2767f8f5f31344468b65e14baa3f1a4c85fb91 /src/plugins/cdp/cdp_input.c
parenta2b358b1faf6e762e1d29a931d83c7735ac9a77d (diff)
vppinfra: make _vec_len() read-only
Use of _vec_len() to set vector length breaks address sanitizer. Users should use vec_set_len(), vec_inc_len(), vec_dec_len () instead. Type: improvement Change-Id: I441ae948771eb21c23a61f3ff9163bdad74a2cb8 Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/plugins/cdp/cdp_input.c')
-rw-r--r--src/plugins/cdp/cdp_input.c39
1 files changed, 19 insertions, 20 deletions
diff --git a/src/plugins/cdp/cdp_input.c b/src/plugins/cdp/cdp_input.c
index 76a3d70a292..c6198d81de1 100644
--- a/src/plugins/cdp/cdp_input.c
+++ b/src/plugins/cdp/cdp_input.c
@@ -167,25 +167,24 @@ _(version,DEBUG_TLV_DUMP) \
_(platform,DEBUG_TLV_DUMP) \
_(port_id,DEBUG_TLV_DUMP)
-#define _(z,dbg) \
-static \
-cdp_error_t process_##z##_tlv (cdp_main_t *cm, cdp_neighbor_t *n, \
- cdp_tlv_t *t) \
-{ \
- int i; \
- if (dbg) \
- fformat(stdout, "%U\n", format_text_tlv, t); \
- \
- if (n->z) \
- _vec_len(n->z) = 0; \
- \
- for (i = 0; i < (t->l - sizeof (*t)); i++) \
- vec_add1(n->z, t->v[i]); \
- \
- vec_add1(n->z, 0); \
- \
- return CDP_ERROR_NONE; \
-}
+#define _(z, dbg) \
+ static cdp_error_t process_##z##_tlv (cdp_main_t *cm, cdp_neighbor_t *n, \
+ cdp_tlv_t *t) \
+ { \
+ int i; \
+ if (dbg) \
+ fformat (stdout, "%U\n", format_text_tlv, t); \
+ \
+ if (n->z) \
+ vec_set_len (n->z, 0); \
+ \
+ for (i = 0; i < (t->l - sizeof (*t)); i++) \
+ vec_add1 (n->z, t->v[i]); \
+ \
+ vec_add1 (n->z, 0); \
+ \
+ return CDP_ERROR_NONE; \
+ }
foreach_text_to_struct_tlv
#undef _
@@ -354,7 +353,7 @@ cdp_input (vlib_main_t * vm, vlib_buffer_t * b0, u32 bi0)
*/
if (n->last_rx_pkt)
- _vec_len (n->last_rx_pkt) = 0;
+ vec_set_len (n->last_rx_pkt, 0);
/* cdp disabled on this interface, we're done */
if (n->disabled)