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authorDave Barach <dave@barachs.net>2019-07-23 16:28:36 -0400
committerDave Barach <dave@barachs.net>2019-07-24 08:14:39 -0400
commitb71b5ffbfb2ddbad408a22ef17046dfe5fea1cad (patch)
tree73490766e73d335ae722f45c89b092cfcd707b34 /src/vnet/interface_format.c
parent9fb50d83dbe22cab30532cec8c85e711af1f82ff (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> (cherry picked from commit 3940de36728b768574a3e998389bb90d55f690d1)
Diffstat (limited to 'src/vnet/interface_format.c')
-rw-r--r--src/vnet/interface_format.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/vnet/interface_format.c b/src/vnet/interface_format.c
index ee332f398e9..fc2dea96cc8 100644
--- a/src/vnet/interface_format.c
+++ b/src/vnet/interface_format.c
@@ -190,7 +190,7 @@ format_vnet_sw_if_index_name (u8 * s, va_list * args)
u32 sw_if_index = va_arg (*args, u32);
vnet_sw_interface_t *si;
- si = vnet_get_sw_interface_safe (vnm, sw_if_index);
+ si = vnet_get_sw_interface_or_null (vnm, sw_if_index);
if (NULL == si)
{