static inline __u32 dccp_v6_init_sequence(struct sk_buff *skb)
{
- return secure_dccpv6_sequence_number(skb->nh.ipv6h->daddr.s6_addr32,
- skb->nh.ipv6h->saddr.s6_addr32,
+ return secure_dccpv6_sequence_number(ipv6_hdr(skb)->daddr.s6_addr32,
+ ipv6_hdr(skb)->saddr.s6_addr32,
dccp_hdr(skb)->dccph_dport,
dccp_hdr(skb)->dccph_sport );
if (dst == NULL) {
opt = np->opt;
- if (opt == NULL &&
- np->rxopt.bits.osrcrt == 2 &&
- ireq6->pktopts) {
- struct sk_buff *pktopts = ireq6->pktopts;
- struct inet6_skb_parm *rxopt = IP6CB(pktopts);
-
- if (rxopt->srcrt)
- opt = ipv6_invert_rthdr(sk,
- (struct ipv6_rt_hdr *)(pktopts->nh.raw +
- rxopt->srcrt));
- }
if (opt != NULL && opt->srcrt != NULL) {
const struct rt0_hdr *rt0 = (struct rt0_hdr *)opt->srcrt;
static void dccp_v6_ctl_send_reset(struct sock *sk, struct sk_buff *rxskb)
{
struct dccp_hdr *rxdh = dccp_hdr(rxskb), *dh;
+ struct ipv6hdr *rxip6h;
const u32 dccp_hdr_reset_len = sizeof(struct dccp_hdr) +
sizeof(struct dccp_hdr_ext) +
sizeof(struct dccp_hdr_reset);
dccp_hdr_set_ack(dccp_hdr_ack_bits(skb), DCCP_SKB_CB(rxskb)->dccpd_seq);
dccp_csum_outgoing(skb);
- dh->dccph_checksum = dccp_v6_csum_finish(skb, &rxskb->nh.ipv6h->saddr,
- &rxskb->nh.ipv6h->daddr);
+ rxip6h = ipv6_hdr(rxskb);
+ dh->dccph_checksum = dccp_v6_csum_finish(skb, &rxip6h->saddr,
+ &rxip6h->daddr);
memset(&fl, 0, sizeof(fl));
- ipv6_addr_copy(&fl.fl6_dst, &rxskb->nh.ipv6h->saddr);
- ipv6_addr_copy(&fl.fl6_src, &rxskb->nh.ipv6h->daddr);
+ ipv6_addr_copy(&fl.fl6_dst, &rxip6h->saddr);
+ ipv6_addr_copy(&fl.fl6_src, &rxip6h->daddr);
fl.proto = IPPROTO_DCCP;
fl.oif = inet6_iif(rxskb);
static struct sock *dccp_v6_hnd_req(struct sock *sk,struct sk_buff *skb)
{
const struct dccp_hdr *dh = dccp_hdr(skb);
- const struct ipv6hdr *iph = skb->nh.ipv6h;
+ const struct ipv6hdr *iph = ipv6_hdr(skb);
struct sock *nsk;
struct request_sock **prev;
/* Find possible connection requests. */
goto drop_and_free;
ireq6 = inet6_rsk(req);
- ipv6_addr_copy(&ireq6->rmt_addr, &skb->nh.ipv6h->saddr);
- ipv6_addr_copy(&ireq6->loc_addr, &skb->nh.ipv6h->daddr);
+ ipv6_addr_copy(&ireq6->rmt_addr, &ipv6_hdr(skb)->saddr);
+ ipv6_addr_copy(&ireq6->loc_addr, &ipv6_hdr(skb)->daddr);
ireq6->pktopts = NULL;
if (ipv6_opt_accepted(sk, skb) ||
newnp->pktoptions = NULL;
newnp->opt = NULL;
newnp->mcast_oif = inet6_iif(skb);
- newnp->mcast_hops = skb->nh.ipv6h->hop_limit;
+ newnp->mcast_hops = ipv6_hdr(skb)->hop_limit;
/*
* No need to charge this sock to the relevant IPv6 refcnt debug socks count
if (sk_acceptq_is_full(sk))
goto out_overflow;
- if (np->rxopt.bits.osrcrt == 2 && opt == NULL && ireq6->pktopts) {
- const struct inet6_skb_parm *rxopt = IP6CB(ireq6->pktopts);
-
- if (rxopt->srcrt)
- opt = ipv6_invert_rthdr(sk,
- (struct ipv6_rt_hdr *)(ireq6->pktopts->nh.raw +
- rxopt->srcrt));
- }
-
if (dst == NULL) {
struct in6_addr *final_p = NULL, final;
struct flowi fl;
}
newnp->opt = NULL;
newnp->mcast_oif = inet6_iif(skb);
- newnp->mcast_hops = skb->nh.ipv6h->hop_limit;
+ newnp->mcast_hops = ipv6_hdr(skb)->hop_limit;
/*
* Clone native IPv6 options from listening socket (if any)
goto discard_it;
/* Step 1: If header checksum is incorrect, drop packet and return. */
- if (dccp_v6_csum_finish(skb, &skb->nh.ipv6h->saddr,
- &skb->nh.ipv6h->daddr)) {
+ if (dccp_v6_csum_finish(skb, &ipv6_hdr(skb)->saddr,
+ &ipv6_hdr(skb)->daddr)) {
DCCP_WARN("dropped packet with invalid checksum\n");
goto discard_it;
}
/* Step 2:
* Look up flow ID in table and get corresponding socket */
- sk = __inet6_lookup(&dccp_hashinfo, &skb->nh.ipv6h->saddr,
+ sk = __inet6_lookup(&dccp_hashinfo, &ipv6_hdr(skb)->saddr,
dh->dccph_sport,
- &skb->nh.ipv6h->daddr, ntohs(dh->dccph_dport),
+ &ipv6_hdr(skb)->daddr, ntohs(dh->dccph_dport),
inet6_iif(skb));
/*
* Step 2:
if (final_p)
ipv6_addr_copy(&fl.fl6_dst, final_p);
- err = xfrm_lookup(&dst, &fl, sk, 1);
- if (err < 0)
- goto failure;
+ err = __xfrm_lookup(&dst, &fl, sk, 1);
+ if (err < 0) {
+ if (err == -EREMOTE)
+ err = ip6_dst_blackhole(sk, &dst, &fl);
+ if (err < 0)
+ goto failure;
+ }
if (saddr == NULL) {
saddr = &fl.fl6_src;