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[NETNS][IPV6] tcp6 - handle several network namespace

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We have the right network namespace at the right place now.
So make use of this information to make tcp6 per network namespace

Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: Benjamin Thery <benjamin.thery@bull.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Lezcano 2008-03-07 11:16:26 -08:00 committed by David S. Miller
parent 93ec926b07
commit e504799276
1 changed files with 8 additions and 6 deletions
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14
net/ipv6/tcp_ipv6.c
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@ -988,6 +988,8 @@ static void tcp_v6_send_reset(struct sock *sk, struct sk_buff *skb)
struct tcphdr *th = tcp_hdr(skb), *t1;
struct sk_buff *buff;
struct flowi fl;
struct net *net = skb->dst->dev->nd_net;
struct sock *ctl_sk = net->ipv6.tcp_sk;
unsigned int tot_len = sizeof(*th);
#ifdef CONFIG_TCP_MD5SIG
struct tcp_md5sig_key *key;
@ -1072,11 +1074,10 @@ static void tcp_v6_send_reset(struct sock *sk, struct sk_buff *skb)
* Underlying function will use this to retrieve the network
* namespace
*/
if (!ip6_dst_lookup(init_net.ipv6.tcp_sk, &buff->dst, &fl)) {
if (!ip6_dst_lookup(ctl_sk, &buff->dst, &fl)) {
if (xfrm_lookup(&buff->dst, &fl, NULL, 0) >= 0) {
ip6_xmit(init_net.ipv6.tcp_sk,
buff, &fl, NULL, 0);
ip6_xmit(ctl_sk, buff, &fl, NULL, 0);
TCP_INC_STATS_BH(TCP_MIB_OUTSEGS);
TCP_INC_STATS_BH(TCP_MIB_OUTRSTS);
return;
@ -1092,6 +1093,8 @@ static void tcp_v6_send_ack(struct tcp_timewait_sock *tw,
struct tcphdr *th = tcp_hdr(skb), *t1;
struct sk_buff *buff;
struct flowi fl;
struct net *net = skb->dev->nd_net;
struct sock *ctl_sk = net->ipv6.tcp_sk;
unsigned int tot_len = sizeof(struct tcphdr);
__be32 *topt;
#ifdef CONFIG_TCP_MD5SIG
@ -1173,10 +1176,9 @@ static void tcp_v6_send_ack(struct tcp_timewait_sock *tw,
fl.fl_ip_sport = t1->source;
security_skb_classify_flow(skb, &fl);
if (!ip6_dst_lookup(init_net.ipv6.tcp_sk, &buff->dst, &fl)) {
if (!ip6_dst_lookup(ctl_sk, &buff->dst, &fl)) {
if (xfrm_lookup(&buff->dst, &fl, NULL, 0) >= 0) {
ip6_xmit(init_net.ipv6.tcp_sk,
buff, &fl, NULL, 0);
ip6_xmit(ctl_sk, buff, &fl, NULL, 0);
TCP_INC_STATS_BH(TCP_MIB_OUTSEGS);
return;
}