* sk_filter - run a packet through a socket filter
* @sk: sock associated with &sk_buff
* @skb: buffer to filter
- * @needlock: set to 1 if the sock is not locked by caller.
*
* Run the filter code and then cut skb->data to correct size returned by
* sk_run_filter. If pkt_len is 0 we toss packet. If skb->len is smaller
load_w:
ptr = load_pointer(skb, k, 4, &tmp);
if (ptr != NULL) {
- A = ntohl(get_unaligned((__be32 *)ptr));
+ A = get_unaligned_be32(ptr);
continue;
}
break;
load_h:
ptr = load_pointer(skb, k, 2, &tmp);
if (ptr != NULL) {
- A = ntohs(get_unaligned((__be16 *)ptr));
+ A = get_unaligned_be16(ptr);
continue;
}
break;
A = 0;
continue;
}
+ case SKF_AD_NLATTR_NEST: {
+ struct nlattr *nla;
+
+ if (skb_is_nonlinear(skb))
+ return 0;
+ if (A > skb->len - sizeof(struct nlattr))
+ return 0;
+
+ nla = (struct nlattr *)&skb->data[A];
+ if (nla->nla_len > A - skb->len)
+ return 0;
+
+ nla = nla_find_nested(nla, X);
+ if (nla)
+ A = (void *)nla - (void *)skb->data;
+ else
+ A = 0;
+ continue;
+ }
default:
return 0;
}