}
static inline __u32 secure_dccpv6_sequence_number(__be32 *saddr, __be32 *daddr,
- __be16 sport, __be16 dport )
+ __be16 sport, __be16 dport )
{
return secure_tcpv6_sequence_number(saddr, daddr, sport, dport);
}
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 (rxopt->srcrt)
opt = ipv6_invert_rthdr(sk,
- (struct ipv6_rt_hdr *)(pktopts->nh.raw +
- rxopt->srcrt));
+ (struct ipv6_rt_hdr *)(skb_network_header(pktopts) +
+ rxopt->srcrt));
}
if (opt != NULL && opt->srcrt != NULL) {
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);
skb = alloc_skb(dccp_v6_ctl_socket->sk->sk_prot->max_header,
GFP_ATOMIC);
if (skb == NULL)
- return;
+ return;
skb_reserve(skb, dccp_v6_ctl_socket->sk->sk_prot->max_header);
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. */
struct dccp_request_sock *dreq;
struct inet6_request_sock *ireq6;
struct ipv6_pinfo *np = inet6_sk(sk);
- const __be32 service = dccp_hdr_request(skb)->dccph_req_service;
+ const __be32 service = dccp_hdr_request(skb)->dccph_req_service;
struct dccp_skb_cb *dcb = DCCP_SKB_CB(skb);
__u8 reset_code = DCCP_RESET_CODE_TOO_BUSY;
if (dccp_bad_service_code(sk, service)) {
reset_code = DCCP_RESET_CODE_BAD_SERVICE_CODE;
goto drop;
- }
+ }
/*
* There are no SYN attacks on IPv6, yet...
*/
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 (rxopt->srcrt)
opt = ipv6_invert_rthdr(sk,
- (struct ipv6_rt_hdr *)(ireq6->pktopts->nh.raw +
- rxopt->srcrt));
+ (struct ipv6_rt_hdr *)(skb_network_header(ireq6->pktopts) +
+ rxopt->srcrt));
}
if (dst == 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;
/*
* Clone native IPv6 options from listening socket (if any)
looks not very well thought. For now we latch
options, received in the last packet, enqueued
by tcp. Feel free to propose better solution.
- --ANK (980728)
+ --ANK (980728)
*/
if (np->rxopt.all)
/*
* otherwise we just shortcircuit this and continue with
* the new socket..
*/
- if (nsk != sk) {
+ if (nsk != sk) {
if (dccp_child_process(sk, nsk, skb))
goto reset;
if (opt_skb != NULL)
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;
}
DCCP_SKB_CB(skb)->dccpd_ack_seq = dccp_hdr_ack_seq(skb);
/* Step 2:
- * Look up flow ID in table and get corresponding socket */
- sk = __inet6_lookup(&dccp_hashinfo, &skb->nh.ipv6h->saddr,
+ * Look up flow ID in table and get corresponding socket */
+ 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 no socket ...
+ * If no socket ...
*/
if (sk == NULL) {
dccp_pr_debug("failed to look up flow ID in table and "
/*
* Step 2:
- * ... or S.state == TIMEWAIT,
+ * ... or S.state == TIMEWAIT,
* Generate Reset(No Connection) unless P.type == Reset
* Drop packet and return
*/
/*
* RFC 4340, sec. 9.2.1: Minimum Checksum Coverage
- * o if MinCsCov = 0, only packets with CsCov = 0 are accepted
- * o if MinCsCov > 0, also accept packets with CsCov >= MinCsCov
+ * o if MinCsCov = 0, only packets with CsCov = 0 are accepted
+ * o if MinCsCov > 0, also accept packets with CsCov >= MinCsCov
*/
min_cov = dccp_sk(sk)->dccps_pcrlen;
if (dh->dccph_cscov && (min_cov == 0 || dh->dccph_cscov < min_cov)) {
goto discard_it;
/*
* Step 2:
- * If no socket ...
+ * If no socket ...
* Generate Reset(No Connection) unless P.type == Reset
* Drop packet and return
*/
if (final_p)
ipv6_addr_copy(&fl.fl6_dst, final_p);
- err = xfrm_lookup(&dst, &fl, sk, 0);
+ err = xfrm_lookup(&dst, &fl, sk, 1);
if (err < 0)
goto failure;
projects / powerpc.git / blobdiff