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Diffstat (limited to 'net/dccp/ipv6.c')
-rw-r--r--net/dccp/ipv6.c32
1 files changed, 17 insertions, 15 deletions
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index 627d0c3c51cf..64eac2515aa2 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -84,8 +84,8 @@ static inline __u32 secure_dccpv6_sequence_number(__be32 *saddr, __be32 *daddr,
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 );
@@ -313,6 +313,7 @@ static void dccp_v6_reqsk_destructor(struct request_sock *req)
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);
@@ -352,12 +353,13 @@ static void dccp_v6_ctl_send_reset(struct sock *sk, struct sk_buff *rxskb)
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);
@@ -390,7 +392,7 @@ static struct request_sock_ops dccp6_request_sock_ops = {
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. */
@@ -460,8 +462,8 @@ static int dccp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
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) ||
@@ -546,7 +548,7 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk,
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
@@ -653,7 +655,7 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk,
}
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)
@@ -826,8 +828,8 @@ static int dccp_v6_rcv(struct sk_buff **pskb)
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;
}
@@ -844,9 +846,9 @@ static int dccp_v6_rcv(struct sk_buff **pskb)
/* 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:
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