diff options
Diffstat (limited to 'net/ipv4/udp.c')
| -rw-r--r-- | net/ipv4/udp.c | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 2fb8d731026..7ea1b67b6de 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -130,14 +130,14 @@ EXPORT_SYMBOL(sysctl_udp_wmem_min); atomic_t udp_memory_allocated; EXPORT_SYMBOL(udp_memory_allocated); -static inline int __udp_lib_lport_inuse(__u16 num, +static inline int __udp_lib_lport_inuse(struct net *net, __u16 num, const struct hlist_head udptable[]) { struct sock *sk; struct hlist_node *node; sk_for_each(sk, node, &udptable[num & (UDP_HTABLE_SIZE - 1)]) - if (sk->sk_hash == num) + if (sk->sk_net == net && sk->sk_hash == num) return 1; return 0; } @@ -159,6 +159,7 @@ int __udp_lib_get_port(struct sock *sk, unsigned short snum, struct hlist_head *head; struct sock *sk2; int error = 1; + struct net *net = sk->sk_net; write_lock_bh(&udp_hash_lock); @@ -198,7 +199,7 @@ int __udp_lib_get_port(struct sock *sk, unsigned short snum, /* 2nd pass: find hole in shortest hash chain */ rover = best; for (i = 0; i < (1 << 16) / UDP_HTABLE_SIZE; i++) { - if (! __udp_lib_lport_inuse(rover, udptable)) + if (! __udp_lib_lport_inuse(net, rover, udptable)) goto gotit; rover += UDP_HTABLE_SIZE; if (rover > high) @@ -218,6 +219,7 @@ gotit: sk_for_each(sk2, node, head) if (sk2->sk_hash == snum && sk2 != sk && + sk2->sk_net == net && (!sk2->sk_reuse || !sk->sk_reuse) && (!sk2->sk_bound_dev_if || !sk->sk_bound_dev_if || sk2->sk_bound_dev_if == sk->sk_bound_dev_if) && @@ -261,9 +263,9 @@ static inline int udp_v4_get_port(struct sock *sk, unsigned short snum) /* UDP is nearly always wildcards out the wazoo, it makes no sense to try * harder than this. -DaveM */ -static struct sock *__udp4_lib_lookup(__be32 saddr, __be16 sport, - __be32 daddr, __be16 dport, - int dif, struct hlist_head udptable[]) +static struct sock *__udp4_lib_lookup(struct net *net, __be32 saddr, + __be16 sport, __be32 daddr, __be16 dport, + int dif, struct hlist_head udptable[]) { struct sock *sk, *result = NULL; struct hlist_node *node; @@ -274,7 +276,8 @@ static struct sock *__udp4_lib_lookup(__be32 saddr, __be16 sport, sk_for_each(sk, node, &udptable[hnum & (UDP_HTABLE_SIZE - 1)]) { struct inet_sock *inet = inet_sk(sk); - if (sk->sk_hash == hnum && !ipv6_only_sock(sk)) { + if (sk->sk_net == net && sk->sk_hash == hnum && + !ipv6_only_sock(sk)) { int score = (sk->sk_family == PF_INET ? 1 : 0); if (inet->rcv_saddr) { if (inet->rcv_saddr != daddr) @@ -361,8 +364,8 @@ void __udp4_lib_err(struct sk_buff *skb, u32 info, struct hlist_head udptable[]) int harderr; int err; - sk = __udp4_lib_lookup(iph->daddr, uh->dest, iph->saddr, uh->source, - skb->dev->ifindex, udptable ); + sk = __udp4_lib_lookup(skb->dev->nd_net, iph->daddr, uh->dest, + iph->saddr, uh->source, skb->dev->ifindex, udptable); if (sk == NULL) { ICMP_INC_STATS_BH(ICMP_MIB_INERRORS); return; /* No socket for error */ @@ -1185,8 +1188,8 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct hlist_head udptable[], if (rt->rt_flags & (RTCF_BROADCAST|RTCF_MULTICAST)) return __udp4_lib_mcast_deliver(skb, uh, saddr, daddr, udptable); - sk = __udp4_lib_lookup(saddr, uh->source, daddr, uh->dest, - inet_iif(skb), udptable); + sk = __udp4_lib_lookup(skb->dev->nd_net, saddr, uh->source, daddr, + uh->dest, inet_iif(skb), udptable); if (sk != NULL) { int ret = 0; |