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authorSteven <sluong@cisco.com>2018-04-17 08:50:28 -0700
committerDamjan Marion <dmarion.lists@gmail.com>2018-04-17 17:08:36 +0000
commit583f158b44d9644855441280e09afbf85a4557df (patch)
treeb5d8b88cb0c1562d85b6995e0a0be2c9593bba8b /src/vnet/devices
parent216c35b2c6e5b4a728675f5141241420841cda34 (diff)
vhost: show vhost-user <interface> may crash [VPP-1242]
show vhost-user <interface> may cause a crash if interface is semi-bogus. Semi-bogus means it is a known vpp interface which has a hw_if_index, but it is bogus because it is not a vhost-user interface. The fix is to add a check to reject non vhost-user interface for the command. Change-Id: I63f1e8bfbf46f5ec4c30f9fb3546982b63cd7cc5 Signed-off-by: Steven <sluong@cisco.com>
Diffstat (limited to 'src/vnet/devices')
-rw-r--r--src/vnet/devices/virtio/vhost-user.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/vnet/devices/virtio/vhost-user.c b/src/vnet/devices/virtio/vhost-user.c
index 5460f10b74e..c1fca441fa5 100644
--- a/src/vnet/devices/virtio/vhost-user.c
+++ b/src/vnet/devices/virtio/vhost-user.c
@@ -3253,6 +3253,13 @@ show_vhost_user_command_fn (vlib_main_t * vm,
if (unformat
(input, "%U", unformat_vnet_hw_interface, vnm, &hw_if_index))
{
+ hi = vnet_get_hw_interface (vnm, hw_if_index);
+ if (vhost_user_dev_class.index != hi->dev_class_index)
+ {
+ error = clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, input);
+ goto done;
+ }
vec_add1 (hw_if_indices, hw_if_index);
}
else if (unformat (input, "descriptors") || unformat (input, "desc"))