#include <asm/uaccess.h>
-int ipv6_find_tlv(struct sk_buff *skb, int offset, int type)
-{
- const unsigned char *nh = skb_network_header(skb);
- int packet_len = skb->tail - skb->network_header;
- struct ipv6_opt_hdr *hdr;
- int len;
-
- if (offset + 2 > packet_len)
- goto bad;
- hdr = (struct ipv6_opt_hdr *)(nh + offset);
- len = ((hdr->hdrlen + 1) << 3);
-
- if (offset + len > packet_len)
- goto bad;
-
- offset += 2;
- len -= 2;
-
- while (len > 0) {
- int opttype = nh[offset];
- int optlen;
-
- if (opttype == type)
- return offset;
-
- switch (opttype) {
- case IPV6_TLV_PAD1:
- optlen = 1;
- break;
- default:
- optlen = nh[offset + 1] + 2;
- if (optlen > len)
- goto bad;
- break;
- }
- offset += optlen;
- len -= optlen;
- }
- /* not_found */
- bad:
- return -1;
-}
-EXPORT_SYMBOL_GPL(ipv6_find_tlv);
-
/*
* Parsing tlv encoded headers.
*
static const struct inet6_protocol rthdr_protocol = {
.handler = ipv6_rthdr_rcv,
- .flags = INET6_PROTO_NOPOLICY | INET6_PROTO_GSO_EXTHDR,
+ .flags = INET6_PROTO_NOPOLICY,
};
static const struct inet6_protocol destopt_protocol = {
.handler = ipv6_destopt_rcv,
- .flags = INET6_PROTO_NOPOLICY | INET6_PROTO_GSO_EXTHDR,
+ .flags = INET6_PROTO_NOPOLICY,
};
static const struct inet6_protocol nodata_protocol = {
out:
return ret;
-out_rthdr:
- inet6_del_protocol(&rthdr_protocol, IPPROTO_ROUTING);
out_destopt:
inet6_del_protocol(&destopt_protocol, IPPROTO_DSTOPTS);
+out_rthdr:
+ inet6_del_protocol(&rthdr_protocol, IPPROTO_ROUTING);
goto out;
};