aboutsummaryrefslogtreecommitdiff
path: root/net
diff options
context:
space:
mode:
authorPablo Neira Ayuso2012-01-15 16:34:08 +0100
committerPablo Neira Ayuso2012-06-16 15:08:39 +0200
commit3a8fc53a45c444400259e2e285ba414a87061e3d (patch)
treeda62c51c2ec4fbc145a57b1207287c6b82d81e60 /net
parentd0daebc3d622f95db181601cb0c4a0781f74f758 (diff)
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')
-rw-r--r--net/netfilter/nf_conntrack_ftp.c8
-rw-r--r--net/netfilter/nf_conntrack_irc.c8
-rw-r--r--net/netfilter/nf_conntrack_sane.c8
-rw-r--r--net/netfilter/nf_conntrack_sip.c7
-rw-r--r--net/netfilter/nf_conntrack_tftp.c8
5 files changed, 10 insertions, 29 deletions
diff --git a/net/netfilter/nf_conntrack_ftp.c b/net/netfilter/nf_conntrack_ftp.c
index 8c5c95c6d34f..44e47c9e14fb 100644
--- a/net/netfilter/nf_conntrack_ftp.c
+++ b/net/netfilter/nf_conntrack_ftp.c
@@ -512,7 +512,6 @@ out_update_nl:
}
static struct nf_conntrack_helper ftp[MAX_PORTS][2] __read_mostly;
-static char ftp_names[MAX_PORTS][2][sizeof("ftp-65535")] __read_mostly;
static const struct nf_conntrack_expect_policy ftp_exp_policy = {
.max_expected = 1,
@@ -541,7 +540,6 @@ static void nf_conntrack_ftp_fini(void)
static int __init nf_conntrack_ftp_init(void)
{
int i, j = -1, ret = 0;
- char *tmpname;
ftp_buffer = kmalloc(65536, GFP_KERNEL);
if (!ftp_buffer)
@@ -561,12 +559,10 @@ static int __init nf_conntrack_ftp_init(void)
ftp[i][j].expect_policy = &ftp_exp_policy;
ftp[i][j].me = THIS_MODULE;
ftp[i][j].help = help;
- tmpname = &ftp_names[i][j][0];
if (ports[i] == FTP_PORT)
- sprintf(tmpname, "ftp");
+ sprintf(ftp[i][j].name, "ftp");
else
- sprintf(tmpname, "ftp-%d", ports[i]);
- ftp[i][j].name = tmpname;
+ sprintf(ftp[i][j].name, "ftp-%d", ports[i]);
pr_debug("nf_ct_ftp: registering helper for pf: %d "
"port: %d\n",
diff --git a/net/netfilter/nf_conntrack_irc.c b/net/netfilter/nf_conntrack_irc.c
index 81366c118271..009c52cfd1ec 100644
--- a/net/netfilter/nf_conntrack_irc.c
+++ b/net/netfilter/nf_conntrack_irc.c
@@ -221,7 +221,6 @@ static int help(struct sk_buff *skb, unsigned int protoff,
}
static struct nf_conntrack_helper irc[MAX_PORTS] __read_mostly;
-static char irc_names[MAX_PORTS][sizeof("irc-65535")] __read_mostly;
static struct nf_conntrack_expect_policy irc_exp_policy;
static void nf_conntrack_irc_fini(void);
@@ -229,7 +228,6 @@ static void nf_conntrack_irc_fini(void);
static int __init nf_conntrack_irc_init(void)
{
int i, ret;
- char *tmpname;
if (max_dcc_channels < 1) {
printk(KERN_ERR "nf_ct_irc: max_dcc_channels must not be zero\n");
@@ -255,12 +253,10 @@ static int __init nf_conntrack_irc_init(void)
irc[i].me = THIS_MODULE;
irc[i].help = help;
- tmpname = &irc_names[i][0];
if (ports[i] == IRC_PORT)
- sprintf(tmpname, "irc");
+ sprintf(irc[i].name, "irc");
else
- sprintf(tmpname, "irc-%u", i);
- irc[i].name = tmpname;
+ sprintf(irc[i].name, "irc-%u", i);
ret = nf_conntrack_helper_register(&irc[i]);
if (ret) {
diff --git a/net/netfilter/nf_conntrack_sane.c b/net/netfilter/nf_conntrack_sane.c
index 8501823b3f9b..ec3fc18c4ef6 100644
--- a/net/netfilter/nf_conntrack_sane.c
+++ b/net/netfilter/nf_conntrack_sane.c
@@ -163,7 +163,6 @@ out:
}
static struct nf_conntrack_helper sane[MAX_PORTS][2] __read_mostly;
-static char sane_names[MAX_PORTS][2][sizeof("sane-65535")] __read_mostly;
static const struct nf_conntrack_expect_policy sane_exp_policy = {
.max_expected = 1,
@@ -190,7 +189,6 @@ static void nf_conntrack_sane_fini(void)
static int __init nf_conntrack_sane_init(void)
{
int i, j = -1, ret = 0;
- char *tmpname;
sane_buffer = kmalloc(65536, GFP_KERNEL);
if (!sane_buffer)
@@ -210,12 +208,10 @@ static int __init nf_conntrack_sane_init(void)
sane[i][j].expect_policy = &sane_exp_policy;
sane[i][j].me = THIS_MODULE;
sane[i][j].help = help;
- tmpname = &sane_names[i][j][0];
if (ports[i] == SANE_PORT)
- sprintf(tmpname, "sane");
+ sprintf(sane[i][j].name, "sane");
else
- sprintf(tmpname, "sane-%d", ports[i]);
- sane[i][j].name = tmpname;
+ sprintf(sane[i][j].name, "sane-%d", ports[i]);
pr_debug("nf_ct_sane: registering helper for pf: %d "
"port: %d\n",
diff --git a/net/netfilter/nf_conntrack_sip.c b/net/netfilter/nf_conntrack_sip.c
index 93faf6a3a637..dfd3ff382243 100644
--- a/net/netfilter/nf_conntrack_sip.c
+++ b/net/netfilter/nf_conntrack_sip.c
@@ -1556,7 +1556,6 @@ static void nf_conntrack_sip_fini(void)
static int __init nf_conntrack_sip_init(void)
{
int i, j, ret;
- char *tmpname;
if (ports_c == 0)
ports[ports_c++] = SIP_PORT;
@@ -1584,12 +1583,10 @@ static int __init nf_conntrack_sip_init(void)
sip[i][j].expect_class_max = SIP_EXPECT_MAX;
sip[i][j].me = THIS_MODULE;
- tmpname = &sip_names[i][j][0];
if (ports[i] == SIP_PORT)
- sprintf(tmpname, "sip");
+ sprintf(sip_names[i][j], "sip");
else
- sprintf(tmpname, "sip-%u", i);
- sip[i][j].name = tmpname;
+ sprintf(sip_names[i][j], "sip-%u", i);
pr_debug("port #%u: %u\n", i, ports[i]);
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) {