net/ipv6/seg6_local.c

189 	struct ipv6_sr_hdr *srh;
218 	struct ipv6_sr_hdr *srh;
220 	srh = seg6_get_srh(skb, IP6_FH_F_SKIP_RH);
221 	if (!srh)
229 	return srh;
234 	struct ipv6_sr_hdr *srh;
237 	srh = seg6_get_srh(skb, 0);
238 	if (srh && srh->segments_left > 0)
242 	if (srh && !seg6_hmac_validate_skb(skb))
262 static void advance_nextseg(struct ipv6_sr_hdr *srh, struct in6_addr *daddr)
266 	srh->segments_left--;
267 	addr = srh->segments + srh->segments_left;
389 	struct ipv6_sr_hdr *srh;
391 	srh = get_and_validate_srh(skb);
392 	if (!srh)
395 	advance_nextseg(srh, &ipv6_hdr(skb)->daddr);
429 	struct ipv6_sr_hdr *srh;
431 	srh = get_and_validate_srh(skb);
432 	if (!srh)
435 	advance_nextseg(srh, &ipv6_hdr(skb)->daddr);
502 static enum seg6_local_pktinfo seg6_get_srh_pktinfo(struct ipv6_sr_hdr *srh)
506 	if (!srh)
509 	sgl = srh->segments_left;
627 	struct ipv6_sr_hdr *srh;
635 		     !pskb_may_pull(skb, srhoff + sizeof(*srh))))
638 	srh = (struct ipv6_sr_hdr *)(skb->data + srhoff);
639 	srhlen = ipv6_optlen(srh);
645 	/* skb_ensure_writable() may change skb pointers; evaluate srh again */
646 	srh = (struct ipv6_sr_hdr *)(skb->data + srhoff);
647 	srh_nexthdr = srh->nexthdr;
744 	struct ipv6_sr_hdr *srh;
748 	srh = seg6_get_srh(skb, 0);
749 	srhoff = srh ? ((unsigned char *)srh - skb->data) : 0;
750 	pinfo = seg6_get_srh_pktinfo(srh);
752 	if (srh && !seg6_hmac_validate_skb(skb))
768 		advance_nextseg(srh, &ipv6_hdr(skb)->daddr);
771 		advance_nextseg(srh, &ipv6_hdr(skb)->daddr);
828 	struct ipv6_sr_hdr *srh;
830 	srh = get_and_validate_srh(skb);
831 	if (!srh)
834 	advance_nextseg(srh, &ipv6_hdr(skb)->daddr);
1330 	struct ipv6_sr_hdr *srh;
1333 	srh = get_and_validate_srh(skb);
1334 	if (!srh)
1337 	err = seg6_do_srh_inline(skb, slwt->srh);
1356 	struct ipv6_sr_hdr *srh;
1359 	srh = get_and_validate_srh(skb);
1360 	if (!srh)
1363 	advance_nextseg(srh, &ipv6_hdr(skb)->daddr);
1368 	err = seg6_do_srh_encap(skb, slwt->srh, IPPROTO_IPV6);
1389 	struct ipv6_sr_hdr *srh = srh_state->srh;
1391 	if (unlikely(srh == NULL))
1398 		srh->hdrlen = (u8)(srh_state->hdrlen >> 3);
1399 		if (!seg6_validate_srh(srh, (srh->hdrlen + 1) << 3, true))
1413 	struct ipv6_sr_hdr *srh;
1416 	srh = get_and_validate_srh(skb);
1417 	if (!srh) {
1421 	advance_nextseg(srh, &ipv6_hdr(skb)->daddr);
1427 	srh_state->srh = srh;
1428 	srh_state->hdrlen = srh->hdrlen << 3;
1447 	if (srh_state->srh && !seg6_bpf_has_valid_srh(skb))
1655 	struct ipv6_sr_hdr *srh;
1658 	srh = nla_data(attrs[SEG6_LOCAL_SRH]);
1662 	if (len < sizeof(*srh) + sizeof(struct in6_addr))
1665 	if (!seg6_validate_srh(srh, len, false))
1668 	slwt->srh = kmemdup(srh, len, GFP_KERNEL);
1669 	if (!slwt->srh)
1679 	struct ipv6_sr_hdr *srh;
1683 	srh = slwt->srh;
1684 	len = (srh->hdrlen + 1) << 3;
1690 	memcpy(nla_data(nla), srh, len);
1697 	int len = (a->srh->hdrlen + 1) << 3;
1699 	if (len != ((b->srh->hdrlen + 1) << 3))
1702 	return memcmp(a->srh, b->srh, len);
1707 	kfree(slwt->srh);
2592 		nlsize += nla_total_size((slwt->srh->hdrlen + 1) << 3);