diff options
Diffstat (limited to 'net/ipv4/udp.c')
| -rw-r--r-- | net/ipv4/udp.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 17c1dbed4088..3ff09be87cf2 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -257,6 +257,11 @@ int udp_lib_get_port(struct sock *sk, unsigned short snum, } else { hslot = udp_hashslot(udptable, net, snum); spin_lock_bh(&hslot->lock); + + if (inet_is_local_reserved_port(net, snum) && + !sysctl_reserved_port_bind) + goto fail_unlock; + if (hslot->count > 10) { int exist; unsigned int slot2 = udp_sk(sk)->udp_portaddr_hash ^ snum; @@ -2458,14 +2463,20 @@ static void udp4_format_sock(struct sock *sp, struct seq_file *f, int bucket) { struct inet_sock *inet = inet_sk(sp); + struct udp_sock *up = udp_sk(sp); __be32 dest = inet->inet_daddr; __be32 src = inet->inet_rcv_saddr; __u16 destp = ntohs(inet->inet_dport); __u16 srcp = ntohs(inet->inet_sport); + __u8 state = sp->sk_state; + if (up->encap_rcv) + state |= 0xF0; + else if (inet->transparent) + state |= 0x80; seq_printf(f, "%5d: %08X:%04X %08X:%04X" " %02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d %pK %d", - bucket, src, srcp, dest, destp, sp->sk_state, + bucket, src, srcp, dest, destp, state, sk_wmem_alloc_get(sp), sk_rmem_alloc_get(sp), 0, 0L, 0, |