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>
diff --git a/src/vnet/adj/rewrite.c b/src/vnet/adj/rewrite.c
index cf3cf41..c8508c4 100644
--- a/src/vnet/adj/rewrite.c
+++ b/src/vnet/adj/rewrite.c
@@ -53,7 +53,7 @@
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