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-rw-r--r--include/linux/netfilter/nf_conntrack_sip.h2
-rw-r--r--include/net/netfilter/nf_conntrack.h35
-rw-r--r--include/net/netfilter/nf_conntrack_helper.h15
-rw-r--r--net/ipv4/netfilter/nf_nat_amanda.c4
-rw-r--r--net/ipv4/netfilter/nf_nat_h323.c8
-rw-r--r--net/ipv4/netfilter/nf_nat_pptp.c6
-rw-r--r--net/ipv4/netfilter/nf_nat_tftp.c4
-rw-r--r--net/netfilter/nf_conntrack_core.c3
-rw-r--r--net/netfilter/nf_conntrack_ftp.c3
-rw-r--r--net/netfilter/nf_conntrack_h323_main.c16
-rw-r--r--net/netfilter/nf_conntrack_helper.c11
-rw-r--r--net/netfilter/nf_conntrack_netlink.c4
-rw-r--r--net/netfilter/nf_conntrack_pptp.c17
-rw-r--r--net/netfilter/nf_conntrack_proto_gre.c16
-rw-r--r--net/netfilter/nf_conntrack_sane.c4
-rw-r--r--net/netfilter/nf_conntrack_sip.c25
-rw-r--r--net/netfilter/xt_CT.c44
17 files changed, 111 insertions, 106 deletions
diff --git a/include/linux/netfilter/nf_conntrack_sip.h b/include/linux/netfilter/nf_conntrack_sip.h
index 0ce91d56a5f..0dfc8b7210a 100644
--- a/include/linux/netfilter/nf_conntrack_sip.h
+++ b/include/linux/netfilter/nf_conntrack_sip.h
@@ -2,6 +2,8 @@
#define __NF_CONNTRACK_SIP_H__
#ifdef __KERNEL__
+#include <net/netfilter/nf_conntrack_expect.h>
+
#define SIP_PORT 5060
#define SIP_TIMEOUT 3600
diff --git a/include/net/netfilter/nf_conntrack.h b/include/net/netfilter/nf_conntrack.h
index cce7f6a798b..f1494feba79 100644
--- a/include/net/netfilter/nf_conntrack.h
+++ b/include/net/netfilter/nf_conntrack.h
@@ -39,36 +39,6 @@ union nf_conntrack_expect_proto {
/* insert expect proto private data here */
};
-/* Add protocol helper include file here */
-#include <linux/netfilter/nf_conntrack_ftp.h>
-#include <linux/netfilter/nf_conntrack_pptp.h>
-#include <linux/netfilter/nf_conntrack_h323.h>
-#include <linux/netfilter/nf_conntrack_sane.h>
-#include <linux/netfilter/nf_conntrack_sip.h>
-
-/* per conntrack: application helper private data */
-union nf_conntrack_help {
- /* insert conntrack helper private data (master) here */
-#if defined(CONFIG_NF_CONNTRACK_FTP) || defined(CONFIG_NF_CONNTRACK_FTP_MODULE)
- struct nf_ct_ftp_master ct_ftp_info;
-#endif
-#if defined(CONFIG_NF_CONNTRACK_PPTP) || \
- defined(CONFIG_NF_CONNTRACK_PPTP_MODULE)
- struct nf_ct_pptp_master ct_pptp_info;
-#endif
-#if defined(CONFIG_NF_CONNTRACK_H323) || \
- defined(CONFIG_NF_CONNTRACK_H323_MODULE)
- struct nf_ct_h323_master ct_h323_info;
-#endif
-#if defined(CONFIG_NF_CONNTRACK_SANE) || \
- defined(CONFIG_NF_CONNTRACK_SANE_MODULE)
- struct nf_ct_sane_master ct_sane_info;
-#endif
-#if defined(CONFIG_NF_CONNTRACK_SIP) || defined(CONFIG_NF_CONNTRACK_SIP_MODULE)
- struct nf_ct_sip_master ct_sip_info;
-#endif
-};
-
#include <linux/types.h>
#include <linux/skbuff.h>
#include <linux/timer.h>
@@ -89,12 +59,13 @@ struct nf_conn_help {
/* Helper. if any */
struct nf_conntrack_helper __rcu *helper;
- union nf_conntrack_help help;
-
struct hlist_head expectations;
/* Current number of expected connections */
u8 expecting[NF_CT_MAX_EXPECT_CLASSES];
+
+ /* private helper information. */
+ char data[];
};
#include <net/netfilter/ipv4/nf_conntrack_ipv4.h>
diff --git a/include/net/netfilter/nf_conntrack_helper.h b/include/net/netfilter/nf_conntrack_helper.h
index 5f5a4d9d4df..061352f71a8 100644
--- a/include/net/netfilter/nf_conntrack_helper.h
+++ b/include/net/netfilter/nf_conntrack_helper.h
@@ -11,6 +11,7 @@
#define _NF_CONNTRACK_HELPER_H
#include <net/netfilter/nf_conntrack.h>
#include <net/netfilter/nf_conntrack_extend.h>
+#include <net/netfilter/nf_conntrack_expect.h>
struct module;
@@ -23,6 +24,9 @@ struct nf_conntrack_helper {
struct module *me; /* pointer to self */
const struct nf_conntrack_expect_policy *expect_policy;
+ /* length of internal data, ie. sizeof(struct nf_ct_*_master) */
+ size_t data_len;
+
/* Tuple of things we will help (compared against server response) */
struct nf_conntrack_tuple tuple;
@@ -48,7 +52,7 @@ nf_conntrack_helper_try_module_get(const char *name, u16 l3num, u8 protonum);
extern int nf_conntrack_helper_register(struct nf_conntrack_helper *);
extern void nf_conntrack_helper_unregister(struct nf_conntrack_helper *);
-extern struct nf_conn_help *nf_ct_helper_ext_add(struct nf_conn *ct, gfp_t gfp);
+extern struct nf_conn_help *nf_ct_helper_ext_add(struct nf_conn *ct, struct nf_conntrack_helper *helper, gfp_t gfp);
extern int __nf_ct_try_assign_helper(struct nf_conn *ct, struct nf_conn *tmpl,
gfp_t flags);
@@ -60,6 +64,15 @@ static inline struct nf_conn_help *nfct_help(const struct nf_conn *ct)
return nf_ct_ext_find(ct, NF_CT_EXT_HELPER);
}
+static inline void *nfct_help_data(const struct nf_conn *ct)
+{
+ struct nf_conn_help *help;
+
+ help = nf_ct_ext_find(ct, NF_CT_EXT_HELPER);
+
+ return (void *)help->data;
+}
+
extern int nf_conntrack_helper_init(struct net *net);
extern void nf_conntrack_helper_fini(struct net *net);
diff --git a/net/ipv4/netfilter/nf_nat_amanda.c b/net/ipv4/netfilter/nf_nat_amanda.c
index 7b22382ff0e..3c04d24e297 100644
--- a/net/ipv4/netfilter/nf_nat_amanda.c
+++ b/net/ipv4/netfilter/nf_nat_amanda.c
@@ -13,10 +13,10 @@
#include <linux/skbuff.h>
#include <linux/udp.h>
-#include <net/netfilter/nf_nat_helper.h>
-#include <net/netfilter/nf_nat_rule.h>
#include <net/netfilter/nf_conntrack_helper.h>
#include <net/netfilter/nf_conntrack_expect.h>
+#include <net/netfilter/nf_nat_helper.h>
+#include <net/netfilter/nf_nat_rule.h>
#include <linux/netfilter/nf_conntrack_amanda.h>
MODULE_AUTHOR("Brian J. Murrell <netfilter@interlinx.bc.ca>");
diff --git a/net/ipv4/netfilter/nf_nat_h323.c b/net/ipv4/netfilter/nf_nat_h323.c
index cad29c12131..c6784a18c1c 100644
--- a/net/ipv4/netfilter/nf_nat_h323.c
+++ b/net/ipv4/netfilter/nf_nat_h323.c
@@ -95,7 +95,7 @@ static int set_sig_addr(struct sk_buff *skb, struct nf_conn *ct,
unsigned char **data,
TransportAddress *taddr, int count)
{
- const struct nf_ct_h323_master *info = &nfct_help(ct)->help.ct_h323_info;
+ const struct nf_ct_h323_master *info = nfct_help_data(ct);
int dir = CTINFO2DIR(ctinfo);
int i;
__be16 port;
@@ -178,7 +178,7 @@ static int nat_rtp_rtcp(struct sk_buff *skb, struct nf_conn *ct,
struct nf_conntrack_expect *rtp_exp,
struct nf_conntrack_expect *rtcp_exp)
{
- struct nf_ct_h323_master *info = &nfct_help(ct)->help.ct_h323_info;
+ struct nf_ct_h323_master *info = nfct_help_data(ct);
int dir = CTINFO2DIR(ctinfo);
int i;
u_int16_t nated_port;
@@ -330,7 +330,7 @@ static int nat_h245(struct sk_buff *skb, struct nf_conn *ct,
TransportAddress *taddr, __be16 port,
struct nf_conntrack_expect *exp)
{
- struct nf_ct_h323_master *info = &nfct_help(ct)->help.ct_h323_info;
+ struct nf_ct_h323_master *info = nfct_help_data(ct);
int dir = CTINFO2DIR(ctinfo);
u_int16_t nated_port = ntohs(port);
@@ -419,7 +419,7 @@ static int nat_q931(struct sk_buff *skb, struct nf_conn *ct,
unsigned char **data, TransportAddress *taddr, int idx,
__be16 port, struct nf_conntrack_expect *exp)
{
- struct nf_ct_h323_master *info = &nfct_help(ct)->help.ct_h323_info;
+ struct nf_ct_h323_master *info = nfct_help_data(ct);
int dir = CTINFO2DIR(ctinfo);
u_int16_t nated_port = ntohs(port);
union nf_inet_addr addr;
diff --git a/net/ipv4/netfilter/nf_nat_pptp.c b/net/ipv4/netfilter/nf_nat_pptp.c
index c273d58980a..388140881eb 100644
--- a/net/ipv4/netfilter/nf_nat_pptp.c
+++ b/net/ipv4/netfilter/nf_nat_pptp.c
@@ -49,7 +49,7 @@ static void pptp_nat_expected(struct nf_conn *ct,
const struct nf_nat_pptp *nat_pptp_info;
struct nf_nat_ipv4_range range;
- ct_pptp_info = &nfct_help(master)->help.ct_pptp_info;
+ ct_pptp_info = nfct_help_data(master);
nat_pptp_info = &nfct_nat(master)->help.nat_pptp_info;
/* And here goes the grand finale of corrosion... */
@@ -123,7 +123,7 @@ pptp_outbound_pkt(struct sk_buff *skb,
__be16 new_callid;
unsigned int cid_off;
- ct_pptp_info = &nfct_help(ct)->help.ct_pptp_info;
+ ct_pptp_info = nfct_help_data(ct);
nat_pptp_info = &nfct_nat(ct)->help.nat_pptp_info;
new_callid = ct_pptp_info->pns_call_id;
@@ -192,7 +192,7 @@ pptp_exp_gre(struct nf_conntrack_expect *expect_orig,
struct nf_ct_pptp_master *ct_pptp_info;
struct nf_nat_pptp *nat_pptp_info;
- ct_pptp_info = &nfct_help(ct)->help.ct_pptp_info;
+ ct_pptp_info = nfct_help_data(ct);
nat_pptp_info = &nfct_nat(ct)->help.nat_pptp_info;
/* save original PAC call ID in nat_info */
diff --git a/net/ipv4/netfilter/nf_nat_tftp.c b/net/ipv4/netfilter/nf_nat_tftp.c
index a2901bf829c..9dbb8d284f9 100644
--- a/net/ipv4/netfilter/nf_nat_tftp.c
+++ b/net/ipv4/netfilter/nf_nat_tftp.c
@@ -8,10 +8,10 @@
#include <linux/module.h>
#include <linux/udp.h>
-#include <net/netfilter/nf_nat_helper.h>
-#include <net/netfilter/nf_nat_rule.h>
#include <net/netfilter/nf_conntrack_helper.h>
#include <net/netfilter/nf_conntrack_expect.h>
+#include <net/netfilter/nf_nat_helper.h>
+#include <net/netfilter/nf_nat_rule.h>
#include <linux/netfilter/nf_conntrack_tftp.h>
MODULE_AUTHOR("Magnus Boden <mb@ozaba.mine.nu>");
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index 1ee2082b81b..cf4875565d6 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -819,7 +819,8 @@ init_conntrack(struct net *net, struct nf_conn *tmpl,
__set_bit(IPS_EXPECTED_BIT, &ct->status);
ct->master = exp->master;
if (exp->helper) {
- help = nf_ct_helper_ext_add(ct, GFP_ATOMIC);
+ help = nf_ct_helper_ext_add(ct, exp->helper,
+ GFP_ATOMIC);
if (help)
rcu_assign_pointer(help->helper, exp->helper);
}
diff --git a/net/netfilter/nf_conntrack_ftp.c b/net/netfilter/nf_conntrack_ftp.c
index 44e47c9e14f..4bb771d1f57 100644
--- a/net/netfilter/nf_conntrack_ftp.c
+++ b/net/netfilter/nf_conntrack_ftp.c
@@ -358,7 +358,7 @@ static int help(struct sk_buff *skb,
u32 seq;
int dir = CTINFO2DIR(ctinfo);
unsigned int uninitialized_var(matchlen), uninitialized_var(matchoff);
- struct nf_ct_ftp_master *ct_ftp_info = &nfct_help(ct)->help.ct_ftp_info;
+ struct nf_ct_ftp_master *ct_ftp_info = nfct_help_data(ct);
struct nf_conntrack_expect *exp;
union nf_inet_addr *daddr;
struct nf_conntrack_man cmd = {};
@@ -554,6 +554,7 @@ static int __init nf_conntrack_ftp_init(void)
ftp[i][0].tuple.src.l3num = PF_INET;
ftp[i][1].tuple.src.l3num = PF_INET6;
for (j = 0; j < 2; j++) {
+ ftp[i][j].data_len = sizeof(struct nf_ct_ftp_master);
ftp[i][j].tuple.src.u.tcp.port = htons(ports[i]);
ftp[i][j].tuple.dst.protonum = IPPROTO_TCP;
ftp[i][j].expect_policy = &ftp_exp_policy;
diff --git a/net/netfilter/nf_conntrack_h323_main.c b/net/netfilter/nf_conntrack_h323_main.c
index 46d69d7f1bb..ed219928052 100644
--- a/net/netfilter/nf_conntrack_h323_main.c
+++ b/net/netfilter/nf_conntrack_h323_main.c
@@ -114,7 +114,7 @@ static int get_tpkt_data(struct sk_buff *skb, unsigned int protoff,
struct nf_conn *ct, enum ip_conntrack_info ctinfo,
unsigned char **data, int *datalen, int *dataoff)
{
- struct nf_ct_h323_master *info = &nfct_help(ct)->help.ct_h323_info;
+ struct nf_ct_h323_master *info = nfct_help_data(ct);
int dir = CTINFO2DIR(ctinfo);
const struct tcphdr *th;
struct tcphdr _tcph;
@@ -618,6 +618,7 @@ static const struct nf_conntrack_expect_policy h245_exp_policy = {
static struct nf_conntrack_helper nf_conntrack_helper_h245 __read_mostly = {
.name = "H.245",
.me = THIS_MODULE,
+ .data_len = sizeof(struct nf_ct_h323_master),
.tuple.src.l3num = AF_UNSPEC,
.tuple.dst.protonum = IPPROTO_UDP,
.help = h245_help,
@@ -1170,6 +1171,7 @@ static struct nf_conntrack_helper nf_conntrack_helper_q931[] __read_mostly = {
{
.name = "Q.931",
.me = THIS_MODULE,
+ .data_len = sizeof(struct nf_ct_h323_master),
.tuple.src.l3num = AF_INET,
.tuple.src.u.tcp.port = cpu_to_be16(Q931_PORT),
.tuple.dst.protonum = IPPROTO_TCP,
@@ -1245,7 +1247,7 @@ static int expect_q931(struct sk_buff *skb, struct nf_conn *ct,
unsigned char **data,
TransportAddress *taddr, int count)
{
- struct nf_ct_h323_master *info = &nfct_help(ct)->help.ct_h323_info;
+ struct nf_ct_h323_master *info = nfct_help_data(ct);
int dir = CTINFO2DIR(ctinfo);
int ret = 0;
int i;
@@ -1360,7 +1362,7 @@ static int process_rrq(struct sk_buff *skb, struct nf_conn *ct,
enum ip_conntrack_info ctinfo,
unsigned char **data, RegistrationRequest *rrq)
{
- struct nf_ct_h323_master *info = &nfct_help(ct)->help.ct_h323_info;
+ struct nf_ct_h323_master *info = nfct_help_data(ct);
int ret;
typeof(set_ras_addr_hook) set_ras_addr;
@@ -1395,7 +1397,7 @@ static int process_rcf(struct sk_buff *skb, struct nf_conn *ct,
enum ip_conntrack_info ctinfo,
unsigned char **data, RegistrationConfirm *rcf)
{
- struct nf_ct_h323_master *info = &nfct_help(ct)->help.ct_h323_info;
+ struct nf_ct_h323_master *info = nfct_help_data(ct);
int dir = CTINFO2DIR(ctinfo);
int ret;
struct nf_conntrack_expect *exp;
@@ -1444,7 +1446,7 @@ static int process_urq(struct sk_buff *skb, struct nf_conn *ct,
enum ip_conntrack_info ctinfo,
unsigned char **data, UnregistrationRequest *urq)
{
- struct nf_ct_h323_master *info = &nfct_help(ct)->help.ct_h323_info;
+ struct nf_ct_h323_master *info = nfct_help_data(ct);
int dir = CTINFO2DIR(ctinfo);
int ret;
typeof(set_sig_addr_hook) set_sig_addr;
@@ -1476,7 +1478,7 @@ static int process_arq(struct sk_buff *skb, struct nf_conn *ct,
enum ip_conntrack_info ctinfo,
unsigned char **data, AdmissionRequest *arq)
{
- const struct nf_ct_h323_master *info = &nfct_help(ct)->help.ct_h323_info;
+ const struct nf_ct_h323_master *info = nfct_help_data(ct);
int dir = CTINFO2DIR(ctinfo);
__be16 port;
union nf_inet_addr addr;
@@ -1743,6 +1745,7 @@ static struct nf_conntrack_helper nf_conntrack_helper_ras[] __read_mostly = {
{
.name = "RAS",
.me = THIS_MODULE,
+ .data_len = sizeof(struct nf_ct_h323_master),
.tuple.src.l3num = AF_INET,
.tuple.src.u.udp.port = cpu_to_be16(RAS_PORT),
.tuple.dst.protonum = IPPROTO_UDP,
@@ -1752,6 +1755,7 @@ static struct nf_conntrack_helper nf_conntrack_helper_ras[] __read_mostly = {
{
.name = "RAS",
.me = THIS_MODULE,
+ .data_len = sizeof(struct nf_ct_h323_master),
.tuple.src.l3num = AF_INET6,
.tuple.src.u.udp.port = cpu_to_be16(RAS_PORT),
.tuple.dst.protonum = IPPROTO_UDP,
diff --git a/net/netfilter/nf_conntrack_helper.c b/net/netfilter/nf_conntrack_helper.c
index 4fa2ff961f5..9c18ecb0ab8 100644
--- a/net/netfilter/nf_conntrack_helper.c
+++ b/net/netfilter/nf_conntrack_helper.c
@@ -161,11 +161,14 @@ nf_conntrack_helper_try_module_get(const char *name, u16 l3num, u8 protonum)
}
EXPORT_SYMBOL_GPL(nf_conntrack_helper_try_module_get);
-struct nf_conn_help *nf_ct_helper_ext_add(struct nf_conn *ct, gfp_t gfp)
+struct nf_conn_help *
+nf_ct_helper_ext_add(struct nf_conn *ct,
+ struct nf_conntrack_helper *helper, gfp_t gfp)
{
struct nf_conn_help *help;
- help = nf_ct_ext_add(ct, NF_CT_EXT_HELPER, gfp);
+ help = nf_ct_ext_add_length(ct, NF_CT_EXT_HELPER,
+ helper->data_len, gfp);
if (help)
INIT_HLIST_HEAD(&help->expectations);
else
@@ -218,13 +221,13 @@ int __nf_ct_try_assign_helper(struct nf_conn *ct, struct nf_conn *tmpl,
}
if (help == NULL) {
- help = nf_ct_helper_ext_add(ct, flags);
+ help = nf_ct_helper_ext_add(ct, helper, flags);
if (help == NULL) {
ret = -ENOMEM;
goto out;
}
} else {
- memset(&help->help, 0, sizeof(help->help));
+ memset(help->data, 0, helper->data_len);
}
rcu_assign_pointer(help->helper, helper);
diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index 6f4b00a8fc7..a08892048b4 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -1218,7 +1218,7 @@ ctnetlink_change_helper(struct nf_conn *ct, const struct nlattr * const cda[])
if (help->helper)
return -EBUSY;
/* need to zero data of old helper */
- memset(&help->help, 0, sizeof(help->help));
+ memset(help->data, 0, help->helper->data_len);
} else {
/* we cannot set a helper for an existing conntrack */
return -EOPNOTSUPP;
@@ -1440,7 +1440,7 @@ ctnetlink_create_conntrack(struct net *net, u16 zone,
} else {
struct nf_conn_help *help;
- help = nf_ct_helper_ext_add(ct, GFP_ATOMIC);
+ help = nf_ct_helper_ext_add(ct, helper, GFP_ATOMIC);
if (help == NULL) {
err = -ENOMEM;
goto err2;
diff --git a/net/netfilter/nf_conntrack_pptp.c b/net/netfilter/nf_conntrack_pptp.c
index 31d56b23b9e..6fed9ec3524 100644
--- a/net/netfilter/nf_conntrack_pptp.c
+++ b/net/netfilter/nf_conntrack_pptp.c
@@ -174,7 +174,7 @@ static int destroy_sibling_or_exp(struct net *net, struct nf_conn *ct,
static void pptp_destroy_siblings(struct nf_conn *ct)
{
struct net *net = nf_ct_net(ct);
- const struct nf_conn_help *help = nfct_help(ct);
+ const struct nf_ct_pptp_master *ct_pptp_info = nfct_help_data(ct);
struct nf_conntrack_tuple t;
nf_ct_gre_keymap_destroy(ct);
@@ -182,16 +182,16 @@ static void pptp_destroy_siblings(struct nf_conn *ct)
/* try original (pns->pac) tuple */
memcpy(&t, &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple, sizeof(t));
t.dst.protonum = IPPROTO_GRE;
- t.src.u.gre.key = help->help.ct_pptp_info.pns_call_id;
- t.dst.u.gre.key = help->help.ct_pptp_info.pac_call_id;
+ t.src.u.gre.key = ct_pptp_info->pns_call_id;
+ t.dst.u.gre.key = ct_pptp_info->pac_call_id;
if (!destroy_sibling_or_exp(net, ct, &t))
pr_debug("failed to timeout original pns->pac ct/exp\n");
/* try reply (pac->pns) tuple */
memcpy(&t, &ct->tuplehash[IP_CT_DIR_REPLY].tuple, sizeof(t));
t.dst.protonum = IPPROTO_GRE;
- t.src.u.gre.key = help->help.ct_pptp_info.pac_call_id;
- t.dst.u.gre.key = help->help.ct_pptp_info.pns_call_id;
+ t.src.u.gre.key = ct_pptp_info->pac_call_id;
+ t.dst.u.gre.key = ct_pptp_info->pns_call_id;
if (!destroy_sibling_or_exp(net, ct, &t))
pr_debug("failed to timeout reply pac->pns ct/exp\n");
}
@@ -269,7 +269,7 @@ pptp_inbound_pkt(struct sk_buff *skb,
struct nf_conn *ct,
enum ip_conntrack_info ctinfo)
{
- struct nf_ct_pptp_master *info = &nfct_help(ct)->help.ct_pptp_info;
+ struct nf_ct_pptp_master *info = nfct_help_data(ct);
u_int16_t msg;
__be16 cid = 0, pcid = 0;
typeof(nf_nat_pptp_hook_inbound) nf_nat_pptp_inbound;
@@ -396,7 +396,7 @@ pptp_outbound_pkt(struct sk_buff *skb,
struct nf_conn *ct,
enum ip_conntrack_info ctinfo)
{
- struct nf_ct_pptp_master *info = &nfct_help(ct)->help.ct_pptp_info;
+ struct nf_ct_pptp_master *info = nfct_help_data(ct);
u_int16_t msg;
__be16 cid = 0, pcid = 0;
typeof(nf_nat_pptp_hook_outbound) nf_nat_pptp_outbound;
@@ -506,7 +506,7 @@ conntrack_pptp_help(struct sk_buff *skb, unsigned int protoff,
{
int dir = CTINFO2DIR(ctinfo);
- const struct nf_ct_pptp_master *info = &nfct_help(ct)->help.ct_pptp_info;
+ const struct nf_ct_pptp_master *info = nfct_help_data(ct);
const struct tcphdr *tcph;
struct tcphdr _tcph;
const struct pptp_pkt_hdr *pptph;
@@ -592,6 +592,7 @@ static const struct nf_conntrack_expect_policy pptp_exp_policy = {
static struct nf_conntrack_helper pptp __read_mostly = {
.name = "pptp",
.me = THIS_MODULE,
+ .data_len = sizeof(struct nf_ct_pptp_master),
.tuple.src.l3num = AF_INET,
.tuple.src.u.tcp.port = cpu_to_be16(PPTP_CONTROL_PORT),
.tuple.dst.protonum = IPPROTO_TCP,
diff --git a/net/netfilter/nf_conntrack_proto_gre.c b/net/netfilter/nf_conntrack_proto_gre.c
index 25ba5a2f5ed..5cac41c2fa0 100644
--- a/net/netfilter/nf_conntrack_proto_gre.c
+++ b/net/netfilter/nf_conntrack_proto_gre.c
@@ -117,10 +117,10 @@ int nf_ct_gre_keymap_add(struct nf_conn *ct, enum ip_conntrack_dir dir,
{
struct net *net = nf_ct_net(ct);
struct netns_proto_gre *net_gre = gre_pernet(net);
- struct nf_conn_help *help = nfct_help(ct);
+ struct nf_ct_pptp_master *ct_pptp_info = nfct_help_data(ct);
struct nf_ct_gre_keymap **kmp, *km;
- kmp = &help->help.ct_pptp_info.keymap[dir];
+ kmp = &ct_pptp_info->keymap[dir];
if (*kmp) {
/* check whether it's a retransmission */
read_lock_bh(&net_gre->keymap_lock);
@@ -158,19 +158,19 @@ void nf_ct_gre_keymap_destroy(struct nf_conn *ct)
{
struct net *net = nf_ct_net(ct);
struct netns_proto_gre *net_gre = gre_pernet(net);
- struct nf_conn_help *help = nfct_help(ct);
+ struct nf_ct_pptp_master *ct_pptp_info = nfct_help_data(ct);
enum ip_conntrack_dir dir;
pr_debug("entering for ct %p\n", ct);
write_lock_bh(&net_gre->keymap_lock);
for (dir = IP_CT_DIR_ORIGINAL; dir < IP_CT_DIR_MAX; dir++) {
- if (help->help.ct_pptp_info.keymap[dir]) {
+ if (ct_pptp_info->keymap[dir]) {
pr_debug("removing %p from list\n",
- help->help.ct_pptp_info.keymap[dir]);
- list_del(&help->help.ct_pptp_info.keymap[dir]->list);
- kfree(help->help.ct_pptp_info.keymap[dir]);
- help->help.ct_pptp_info.keymap[dir] = NULL;
+ ct_pptp_info->keymap[dir]);
+ list_del(&ct_pptp_info->keymap[dir]->list);
+ kfree(ct_pptp_info->keymap[dir]);
+ ct_pptp_info->keymap[dir] = NULL;
}
}
write_unlock_bh(&net_gre->keymap_lock);
diff --git a/net/netfilter/nf_conntrack_sane.c b/net/netfilter/nf_conntrack_sane.c
index ec3fc18c4ef..295429f3908 100644
--- a/net/netfilter/nf_conntrack_sane.c
+++ b/net/netfilter/nf_conntrack_sane.c
@@ -69,13 +69,12 @@ static int help(struct sk_buff *skb,
void *sb_ptr;
int ret = NF_ACCEPT;
int dir = CTINFO2DIR(ctinfo);
- struct nf_ct_sane_master *ct_sane_info;
+ struct nf_ct_sane_master *ct_sane_info = nfct_help_data(ct);
struct nf_conntrack_expect *exp;
struct nf_conntrack_tuple *tuple;
struct sane_request *req;
struct sane_reply_net_start *reply;
- ct_sane_info = &nfct_help(ct)->help.ct_sane_info;
/* Until there's been traffic both ways, don't look in packets. */
if (ctinfo != IP_CT_ESTABLISHED &&
ctinfo != IP_CT_ESTABLISHED_REPLY)
@@ -203,6 +202,7 @@ static int __init nf_conntrack_sane_init(void)
sane[i][0].tuple.src.l3num = PF_INET;
sane[i][1].tuple.src.l3num = PF_INET6;
for (j = 0; j < 2; j++) {
+ sane[i][j].data_len = sizeof(struct nf_ct_sane_master);
sane[i][j].tuple.src.u.tcp.port = htons(ports[i]);
sane[i][j].tuple.dst.protonum = IPPROTO_TCP;
sane[i][j].expect_policy = &sane_exp_policy;
diff --git a/net/netfilter/nf_conntrack_sip.c b/net/netfilter/nf_conntrack_sip.c
index dfd3ff38224..758a1bacc12 100644
--- a/net/netfilter/nf_conntrack_sip.c
+++ b/net/netfilter/nf_conntrack_sip.c
@@ -1075,12 +1075,12 @@ static int process_invite_response(struct sk_buff *skb, unsigned int dataoff,
{
enum ip_conntrack_info ctinfo;
struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
- struct nf_conn_help *help = nfct_help(ct);
+ struct nf_ct_sip_master *ct_sip_info = nfct_help_data(ct);
if ((code >= 100 && code <= 199) ||
(code >= 200 && code <= 299))
return process_sdp(skb, dataoff, dptr, datalen, cseq);
- else if (help->help.ct_sip_info.invite_cseq == cseq)
+ else if (ct_sip_info->invite_cseq == cseq)
flush_expectations(ct, true);
return NF_ACCEPT;
}
@@ -1091,12 +1091,12 @@ static int process_update_response(struct sk_buff *skb, unsigned int dataoff,
{
enum ip_conntrack_info ctinfo;
struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
- struct nf_conn_help *help = nfct_help(ct);
+ struct nf_ct_sip_master *ct_sip_info = nfct_help_data(ct);
if ((code >= 100 && code <= 199) ||
(code >= 200 && code <= 299))
return process_sdp(skb, dataoff, dptr, datalen, cseq);
- else if (help->help.ct_sip_info.invite_cseq == cseq)
+ else if (ct_sip_info->invite_cseq == cseq)
flush_expectations(ct, true);
return NF_ACCEPT;
}
@@ -1107,12 +1107,12 @@ static int process_prack_response(struct sk_buff *skb, unsigned int dataoff,
{
enum ip_conntrack_info ctinfo;
struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
- struct nf_conn_help *help = nfct_help(ct);
+ struct nf_ct_sip_master *ct_sip_info = nfct_help_data(ct);
if ((code >= 100 && code <= 199) ||
(code >= 200 && code <= 299))
return process_sdp(skb, dataoff, dptr, datalen, cseq);
- else if (help->help.ct_sip_info.invite_cseq == cseq)
+ else if (ct_sip_info->invite_cseq == cseq)
flush_expectations(ct, true);
return NF_ACCEPT;
}
@@ -1123,13 +1123,13 @@ static int process_invite_request(struct sk_buff *skb, unsigned int dataoff,
{
enum ip_conntrack_info ctinfo;
struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
- struct nf_conn_help *help = nfct_help(ct);
+ struct nf_ct_sip_master *ct_sip_info = nfct_help_data(ct);
unsigned int ret;
flush_expectations(ct, true);
ret = process_sdp(skb, dataoff, dptr, datalen, cseq);
if (ret == NF_ACCEPT)
- help->help.ct_sip_info.invite_cseq = cseq;
+ ct_sip_info->invite_cseq = cseq;
return ret;
}
@@ -1154,7 +1154,7 @@ static int process_register_request(struct sk_buff *skb, unsigned int dataoff,
{
enum ip_conntrack_info ctinfo;
struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
- struct nf_conn_help *help = nfct_help(ct);
+ struct nf_ct_sip_master *ct_sip_info = nfct_help_data(ct);
enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
unsigned int matchoff, matchlen;
struct nf_conntrack_expect *exp;
@@ -1235,7 +1235,7 @@ static int process_register_request(struct sk_buff *skb, unsigned int dataoff,
store_cseq:
if (ret == NF_ACCEPT)
- help->help.ct_sip_info.register_cseq = cseq;
+ ct_sip_info->register_cseq = cseq;
return ret;
}
@@ -1245,7 +1245,7 @@ static int process_register_response(struct sk_buff *skb, unsigned int dataoff,
{
enum ip_conntrack_info ctinfo;
struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
- struct nf_conn_help *help = nfct_help(ct);
+ struct nf_ct_sip_master *ct_sip_info = nfct_help_data(ct);
enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
union nf_inet_addr addr;
__be16 port;
@@ -1262,7 +1262,7 @@ static int process_register_response(struct sk_buff *skb, unsigned int dataoff,
* responses, so we store the sequence number of the last valid
* request and compare it here.
*/
- if (help->help.ct_sip_info.register_cseq != cseq)
+ if (ct_sip_info->register_cseq != cseq)
return NF_ACCEPT;
if (code >= 100 && code <= 199)
@@ -1578,6 +1578,7 @@ static int __init nf_conntrack_sip_init(void)
sip[i][3].help = sip_help_tcp;
for (j = 0; j < ARRAY_SIZE(sip[i]); j++) {
+ sip[i][j].data_len = sizeof(struct nf_ct_sip_master);
sip[i][j].tuple.src.u.udp.port = htons(ports[i]);
sip[i][j].expect_policy = sip_exp_policy;
sip[i][j].expect_class_max = SIP_EXPECT_MAX;
diff --git a/net/netfilter/xt_CT.c b/net/netfilter/xt_CT.c
index a51de9b052b..116018560c6 100644
--- a/net/netfilter/xt_CT.c
+++ b/net/netfilter/xt_CT.c
@@ -112,6 +112,8 @@ static int xt_ct_tg_check_v0(const struct xt_tgchk_param *par)
goto err3;
if (info->helper[0]) {
+ struct nf_conntrack_helper *helper;
+
ret = -ENOENT;
proto = xt_ct_find_proto(par);
if (!proto) {
@@ -120,19 +122,21 @@ static int xt_ct_tg_check_v0(const struct xt_tgchk_param *par)
goto err3;
}
- ret = -ENOMEM;
- help = nf_ct_helper_ext_add(ct, GFP_KERNEL);
- if (help == NULL)
- goto err3;
-
ret = -ENOENT;
- help->helper = nf_conntrack_helper_try_module_get(info->helper,
- par->family,
- proto);
- if (help->helper == NULL) {
+ helper = nf_conntrack_helper_try_module_get(info->helper,
+ par->family,
+ proto);
+ if (helper == NULL) {
pr_info("No such helper \"%s\"\n", info->helper);
goto err3;
}
+
+ ret = -ENOMEM;
+ help = nf_ct_helper_ext_add(ct, helper, GFP_KERNEL);
+ if (help == NULL)
+ goto err3;
+
+ help->helper = helper;
}
__set_bit(IPS_TEMPLATE_BIT, &ct->status);
@@ -202,6 +206,8 @@ static int xt_ct_tg_check_v1(const struct xt_tgchk_param *par)
goto err3;
if (info->helper[0]) {
+ struct nf_conntrack_helper *helper;
+
ret = -ENOENT;
proto = xt_ct_find_proto(par);
if (!proto) {
@@ -210,19 +216,21 @@ static int xt_ct_tg_check_v1(const struct xt_tgchk_param *par)
goto err3;
}
- ret = -ENOMEM;
- help = nf_ct_helper_ext_add(ct, GFP_KERNEL);
- if (help == NULL)
- goto err3;
-
ret = -ENOENT;
- help->helper = nf_conntrack_helper_try_module_get(info->helper,
- par->family,
- proto);
- if (help->helper == NULL) {
+ helper = nf_conntrack_helper_try_module_get(info->helper,
+ par->family,
+ proto);
+ if (helper == NULL) {
pr_info("No such helper \"%s\"\n", info->helper);
goto err3;
}
+
+ ret = -ENOMEM;
+ help = nf_ct_helper_ext_add(ct, helper, GFP_KERNEL);
+ if (help == NULL)
+ goto err3;
+
+ help->helper = helper;
}
#ifdef CONFIG_NF_CONNTRACK_TIMEOUT
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-29 15:29:27 +0000