MODULE_ALIAS("ipt_physdev");
MODULE_ALIAS("ip6t_physdev");
+
static bool
physdev_mt(const struct sk_buff *skb, const struct xt_match_param *par)
{
- int i;
static const char nulldevname[IFNAMSIZ] __attribute__((aligned(sizeof(long))));
const struct xt_physdev_info *info = par->matchinfo;
unsigned long ret;
if (!(info->bitmask & XT_PHYSDEV_OP_IN))
goto match_outdev;
indev = nf_bridge->physindev ? nf_bridge->physindev->name : nulldevname;
- for (i = 0, ret = 0; i < IFNAMSIZ/sizeof(unsigned long); i++) {
- ret |= (((const unsigned long *)indev)[i]
- ^ ((const unsigned long *)info->physindev)[i])
- & ((const unsigned long *)info->in_mask)[i];
- }
+ ret = ifname_compare_aligned(indev, info->physindev, info->in_mask);
if (!ret ^ !(info->invert & XT_PHYSDEV_OP_IN))
return false;
return true;
outdev = nf_bridge->physoutdev ?
nf_bridge->physoutdev->name : nulldevname;
- for (i = 0, ret = 0; i < IFNAMSIZ/sizeof(unsigned long); i++) {
- ret |= (((const unsigned long *)outdev)[i]
- ^ ((const unsigned long *)info->physoutdev)[i])
- & ((const unsigned long *)info->out_mask)[i];
- }
+ ret = ifname_compare_aligned(outdev, info->physoutdev, info->out_mask);
+
return (!!ret ^ !(info->invert & XT_PHYSDEV_OP_OUT));
}