diff options
Diffstat (limited to 'net/ipv4/netfilter/nf_nat_ftp.c')
| -rw-r--r-- | net/ipv4/netfilter/nf_nat_ftp.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/net/ipv4/netfilter/nf_nat_ftp.c b/net/ipv4/netfilter/nf_nat_ftp.c index 86e0e84ff0a0..dc73abb3fe27 100644 --- a/net/ipv4/netfilter/nf_nat_ftp.c +++ b/net/ipv4/netfilter/nf_nat_ftp.c @@ -79,9 +79,16 @@ static unsigned int nf_nat_ftp(struct sk_buff *skb, /* Try to get same port: if not, try to change it. */ for (port = ntohs(exp->saved_proto.tcp.port); port != 0; port++) { + int ret; + exp->tuple.dst.u.tcp.port = htons(port); - if (nf_ct_expect_related(exp) == 0) + ret = nf_ct_expect_related(exp); + if (ret == 0) + break; + else if (ret != -EBUSY) { + port = 0; break; + } } if (port == 0) |