OpenE2K
/
linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[NETFILTER]: nf_nat: Clears helper private area when NATing 

Some helpers (eg. ftp) assume that private area in conntrack is
filled with zero. It should be cleared when helper is changed.

Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yasuyuki Kozakai 2007-05-10 14:16:24 -07:00 committed by David S. Miller
parent df293bbb6f
commit 5d78a84913
1 changed files with 7 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
net/netfilter/nf_conntrack_core.c
View File

@ -888,8 +888,13 @@ void nf_conntrack_alter_reply(struct nf_conn *ct,
NF_CT_DUMP_TUPLE(newreply);
ct->tuplehash[IP_CT_DIR_REPLY].tuple = *newreply;
if (!ct->master && help && help->expecting == 0)
help->helper = __nf_ct_helper_find(newreply);
if (!ct->master && help && help->expecting == 0) {
struct nf_conntrack_helper *helper;
helper = __nf_ct_helper_find(newreply);
if (helper)
memset(&help->help, 0, sizeof(help->help));
help->helper = helper;
}
write_unlock_bh(&nf_conntrack_lock);
}
EXPORT_SYMBOL_GPL(nf_conntrack_alter_reply);