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authorDave Barach <dave@barachs.net>2019-07-23 16:28:36 -0400
committerDave Barach <dave@barachs.net>2019-07-23 16:29:10 -0400
commit3940de36728b768574a3e998389bb90d55f690d1 (patch)
treef3c04d65748319ca38cbabce43c918f7ea745f1d /src/vnet/adj
parentb725ebb3f47302c416e41c7be3f5a8bb3c9fe547 (diff)
api: binary api cleanup
Multiple API message handlers call vnet_get_sup_hw_interface(...) without checking the inbound sw_if_index. This can cause a pool_elt_at_index ASSERT in a debug image, and major disorder in a production image. Given that a number of places are coded as follows, add an "api_visible_or_null" variant of vnet_get_sup_hw_interface, which returns NULL given an invalid sw_if_index, or a hidden sw interface: - hw = vnet_get_sup_hw_interface (vnm, sw_if_index); + hw = vnet_get_sup_hw_interface_api_visible_or_null (vnm, sw_if_index); if (hw == NULL || memif_device_class.index != hw->dev_class_index) return clib_error_return (0, "not a memif interface"); Rename two existing xxx_safe functions -> xxx_or_null to make it obvious what they return. Type: fix Change-Id: I29996e8d0768fd9e0c5495bd91ff8bedcf2c5697 Signed-off-by: Dave Barach <dave@barachs.net>
Diffstat (limited to 'src/vnet/adj')
-rw-r--r--src/vnet/adj/rewrite.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/vnet/adj/rewrite.c b/src/vnet/adj/rewrite.c
index cf3cf416202..c8508c4b37a 100644
--- a/src/vnet/adj/rewrite.c
+++ b/src/vnet/adj/rewrite.c
@@ -53,7 +53,7 @@ format_vnet_rewrite (u8 * s, va_list * args)
if (rw->sw_if_index != ~0)
{
vnet_sw_interface_t *si;
- si = vnet_get_sw_interface_safe (vnm, rw->sw_if_index);
+ si = vnet_get_sw_interface_or_null (vnm, rw->sw_if_index);
if (NULL != si)
s = format (s, "%U:", format_vnet_sw_interface_name, vnm, si);
else