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interface: fix check in set_interface_name api

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set_interface_name may crash if wrong sw_if_index is passed e.g. ~0

Type: fix

Signed-off-by: Stanislav Zaikin <stanislav.zaikin@46labs.com>
Change-Id: Ic7e400c914fb33c2f9eac4f2985bb5b163a18d57
This commit is contained in:
Stanislav Zaikin
2023-08-01 14:28:37 +02:00
committed by Beno�t Ganne
parent 616201abe2
commit 51e6c0d5fe
1 changed files with 6 additions and 7 deletions
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13
src/vnet/interface_api.c
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@ -1020,21 +1020,19 @@ vl_api_sw_interface_set_interface_name_t_handler (
{
vl_api_sw_interface_set_interface_name_reply_t *rmp;
vnet_main_t *vnm = vnet_get_main ();
u32 sw_if_index = ntohl (mp->sw_if_index);
vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
clib_error_t *error;
int rv = 0;
VALIDATE_SW_IF_INDEX (mp);
u32 sw_if_index = ntohl (mp->sw_if_index);
vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
if (mp->name[0] == 0)
{
rv = VNET_API_ERROR_INVALID_VALUE;
goto out;
}
if (si == 0)
{
rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;
goto out;
}
error = vnet_rename_interface (vnm, si->hw_if_index, (char *) mp->name);
if (error)
@ -1044,6 +1042,7 @@ vl_api_sw_interface_set_interface_name_t_handler (
}
out:
BAD_SW_IF_INDEX_LABEL;
REPLY_MACRO (VL_API_SW_INTERFACE_SET_INTERFACE_NAME_REPLY);
}