From 333fad5364d6b457c8d837f7d05802d2aaf8a961 Mon Sep 17 00:00:00 2001 From: YOSHIFUJI Hideaki Date: Thu, 8 Sep 2005 09:59:17 +0900 Subject: [IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542). Support several new socket options / ancillary data: IPV6_RECVPKTINFO, IPV6_PKTINFO, IPV6_RECVHOPOPTS, IPV6_HOPOPTS, IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS, IPV6_RECVRTHDR, IPV6_RTHDR, IPV6_RECVHOPOPTS, IPV6_HOPOPTS Old semantics are preserved as IPV6_2292xxxx so that we can maintain backward compatibility. Signed-off-by: YOSHIFUJI Hideaki --- net/ipv6/tcp_ipv6.c | 21 ++++++++++----------- 1 file changed, 10 insertions(+), 11 deletions(-) (limited to 'net/ipv6/tcp_ipv6.c') diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 794734f1d230b..246414b27d0e3 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -849,7 +849,7 @@ static int tcp_v6_send_synack(struct sock *sk, struct request_sock *req, if (dst == NULL) { opt = np->opt; if (opt == NULL && - np->rxopt.bits.srcrt == 2 && + np->rxopt.bits.osrcrt == 2 && treq->pktopts) { struct sk_buff *pktopts = treq->pktopts; struct inet6_skb_parm *rxopt = IP6CB(pktopts); @@ -915,11 +915,10 @@ static int ipv6_opt_accepted(struct sock *sk, struct sk_buff *skb) struct inet6_skb_parm *opt = IP6CB(skb); if (np->rxopt.all) { - if ((opt->hop && np->rxopt.bits.hopopts) || - ((IPV6_FLOWINFO_MASK&*(u32*)skb->nh.raw) && - np->rxopt.bits.rxflow) || - (opt->srcrt && np->rxopt.bits.srcrt) || - ((opt->dst1 || opt->dst0) && np->rxopt.bits.dstopts)) + if ((opt->hop && (np->rxopt.bits.hopopts || np->rxopt.bits.ohopopts)) || + ((IPV6_FLOWINFO_MASK & *(u32*)skb->nh.raw) && np->rxopt.bits.rxflow) || + (opt->srcrt && (np->rxopt.bits.srcrt || np->rxopt.bits.osrcrt)) || + ((opt->dst1 || opt->dst0) && (np->rxopt.bits.dstopts || np->rxopt.bits.odstopts))) return 1; } return 0; @@ -1190,8 +1189,8 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb) TCP_ECN_create_request(req, skb->h.th); treq->pktopts = NULL; if (ipv6_opt_accepted(sk, skb) || - np->rxopt.bits.rxinfo || - np->rxopt.bits.rxhlim) { + np->rxopt.bits.rxinfo || np->rxopt.bits.rxoinfo || + np->rxopt.bits.rxhlim || np->rxopt.bits.rxohlim) { atomic_inc(&skb->users); treq->pktopts = skb; } @@ -1288,7 +1287,7 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb, if (sk_acceptq_is_full(sk)) goto out_overflow; - if (np->rxopt.bits.srcrt == 2 && + if (np->rxopt.bits.osrcrt == 2 && opt == NULL && treq->pktopts) { struct inet6_skb_parm *rxopt = IP6CB(treq->pktopts); if (rxopt->srcrt) @@ -1544,9 +1543,9 @@ ipv6_pktoptions: tp = tcp_sk(sk); if (TCP_SKB_CB(opt_skb)->end_seq == tp->rcv_nxt && !((1 << sk->sk_state) & (TCPF_CLOSE | TCPF_LISTEN))) { - if (np->rxopt.bits.rxinfo) + if (np->rxopt.bits.rxinfo || np->rxopt.bits.rxoinfo) np->mcast_oif = inet6_iif(opt_skb); - if (np->rxopt.bits.rxhlim) + if (np->rxopt.bits.rxhlim || np->rxopt.bits.rxohlim) np->mcast_hops = opt_skb->nh.ipv6h->hop_limit; if (ipv6_opt_accepted(sk, opt_skb)) { skb_set_owner_r(opt_skb, sk); -- cgit 1.2.3-korg