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authorPablo Neira Ayuso <pablo@netfilter.org>2012-01-15 16:34:08 +0100
committerPablo Neira Ayuso <pablo@netfilter.org>2012-06-16 15:08:39 +0200
commit3a8fc53a45c444400259e2e285ba414a87061e3d (patch)
treeda62c51c2ec4fbc145a57b1207287c6b82d81e60 /net/netfilter/nf_conntrack_tftp.c
parentipv4: Add interface option to enable routing of 127.0.0.0/8 (diff)
downloadlinux-dev-3a8fc53a45c444400259e2e285ba414a87061e3d.tar.xz
linux-dev-3a8fc53a45c444400259e2e285ba414a87061e3d.zip
netfilter: nf_ct_helper: allocate 16 bytes for the helper and policy names
This patch modifies the struct nf_conntrack_helper to allocate the room for the helper name. The maximum length is 16 bytes (this was already introduced in 2.6.24). For the maximum length for expectation policy names, I have also selected 16 bytes. This patch is required by the follow-up patch to support user-space connection tracking helpers. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter/nf_conntrack_tftp.c')
-rw-r--r--net/netfilter/nf_conntrack_tftp.c8
1 files changed, 2 insertions, 6 deletions
diff --git a/net/netfilter/nf_conntrack_tftp.c b/net/netfilter/nf_conntrack_tftp.c
index 75466fd72f4f..81fc61c05263 100644
--- a/net/netfilter/nf_conntrack_tftp.c
+++ b/net/netfilter/nf_conntrack_tftp.c
@@ -92,7 +92,6 @@ static int tftp_help(struct sk_buff *skb,
}
static struct nf_conntrack_helper tftp[MAX_PORTS][2] __read_mostly;
-static char tftp_names[MAX_PORTS][2][sizeof("tftp-65535")] __read_mostly;
static const struct nf_conntrack_expect_policy tftp_exp_policy = {
.max_expected = 1,
@@ -112,7 +111,6 @@ static void nf_conntrack_tftp_fini(void)
static int __init nf_conntrack_tftp_init(void)
{
int i, j, ret;
- char *tmpname;
if (ports_c == 0)
ports[ports_c++] = TFTP_PORT;
@@ -129,12 +127,10 @@ static int __init nf_conntrack_tftp_init(void)
tftp[i][j].me = THIS_MODULE;
tftp[i][j].help = tftp_help;
- tmpname = &tftp_names[i][j][0];
if (ports[i] == TFTP_PORT)
- sprintf(tmpname, "tftp");
+ sprintf(tftp[i][j].name, "tftp");
else
- sprintf(tmpname, "tftp-%u", i);
- tftp[i][j].name = tmpname;
+ sprintf(tftp[i][j].name, "tftp-%u", i);
ret = nf_conntrack_helper_register(&tftp[i][j]);
if (ret) {