diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/netfilter/nf_conntrack_ftp.c | 36 |
1 files changed, 6 insertions, 30 deletions
diff --git a/net/netfilter/nf_conntrack_ftp.c b/net/netfilter/nf_conntrack_ftp.c index 5efe65d4b3c0..9ad15191bb44 100644 --- a/net/netfilter/nf_conntrack_ftp.c +++ b/net/netfilter/nf_conntrack_ftp.c @@ -364,6 +364,7 @@ static int help(struct sk_buff **pskb, unsigned int matchlen, matchoff; struct nf_ct_ftp_master *ct_ftp_info = &nfct_help(ct)->help.ct_ftp_info; struct nf_conntrack_expect *exp; + union nf_conntrack_address *daddr; struct nf_conntrack_man cmd = {}; unsigned int i; int found = 0, ends_in_nl; @@ -454,7 +455,7 @@ static int help(struct sk_buff **pskb, /* We refer to the reverse direction ("!dir") tuples here, * because we're expecting something in the other direction. * Doesn't matter unless NAT is happening. */ - exp->tuple.dst.u3 = ct->tuplehash[!dir].tuple.dst.u3; + daddr = &ct->tuplehash[!dir].tuple.dst.u3; /* Update the ftp info */ if ((cmd.l3num == ct->tuplehash[dir].tuple.src.l3num) && @@ -483,37 +484,12 @@ static int help(struct sk_buff **pskb, ret = NF_ACCEPT; goto out_put_expect; } - memcpy(&exp->tuple.dst.u3, &cmd.u3.all, - sizeof(exp->tuple.dst.u3)); + daddr = &cmd.u3; } - exp->tuple.src.u3 = ct->tuplehash[!dir].tuple.src.u3; - exp->tuple.src.l3num = cmd.l3num; - exp->tuple.src.u.tcp.port = 0; - exp->tuple.dst.u.tcp.port = cmd.u.tcp.port; - exp->tuple.dst.protonum = IPPROTO_TCP; - - exp->mask = (struct nf_conntrack_tuple) - { .src = { .l3num = 0xFFFF, - .u = { .tcp = { 0 }}, - }, - .dst = { .protonum = 0xFF, - .u = { .tcp = { __constant_htons(0xFFFF) }}, - }, - }; - if (cmd.l3num == PF_INET) { - exp->mask.src.u3.ip = htonl(0xFFFFFFFF); - exp->mask.dst.u3.ip = htonl(0xFFFFFFFF); - } else { - memset(exp->mask.src.u3.ip6, 0xFF, - sizeof(exp->mask.src.u3.ip6)); - memset(exp->mask.dst.u3.ip6, 0xFF, - sizeof(exp->mask.src.u3.ip6)); - } - - exp->expectfn = NULL; - exp->helper = NULL; - exp->flags = 0; + nf_ct_expect_init(exp, cmd.l3num, + &ct->tuplehash[!dir].tuple.src.u3, daddr, + IPPROTO_TCP, NULL, &cmd.u.tcp.port); /* Now, NAT might want to mangle the packet, and register the * (possibly changed) expectation itself. */ |