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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/bfd/bfd_cli.c
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/bfd/bfd_cli.c')
-rw-r--r--src/vnet/bfd/bfd_cli.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/vnet/bfd/bfd_cli.c b/src/vnet/bfd/bfd_cli.c
index cab20a65b0b..4b5f75eb01b 100644
--- a/src/vnet/bfd/bfd_cli.c
+++ b/src/vnet/bfd/bfd_cli.c
@@ -170,7 +170,7 @@ show_bfd (vlib_main_t * vm, unformat_input_t * input,
if (is_set)
{
vnet_sw_interface_t *sw_if =
- vnet_get_sw_interface_safe (&vnet_main, sw_if_index);
+ vnet_get_sw_interface_or_null (&vnet_main, sw_if_index);
vnet_hw_interface_t *hw_if =
vnet_get_hw_interface (&vnet_main, sw_if->hw_if_index);
u8 *s = format (NULL, "UDP echo source is: %v\n", hw_if->name);