#include <linux/skbuff.h>
#include <linux/netfilter/x_tables.h>
#include <linux/netfilter/xt_CONNSECMARK.h>
-#include <net/netfilter/nf_conntrack_compat.h>
+#include <net/netfilter/nf_conntrack.h>
#define PFX "CONNSECMARK: "
* If the packet has a security mark and the connection does not, copy
* the security mark from the packet to the connection.
*/
-static void secmark_save(struct sk_buff *skb)
+static void secmark_save(const struct sk_buff *skb)
{
if (skb->secmark) {
- u32 *connsecmark;
+ struct nf_conn *ct;
enum ip_conntrack_info ctinfo;
- connsecmark = nf_ct_get_secmark(skb, &ctinfo);
- if (connsecmark && !*connsecmark)
- if (*connsecmark != skb->secmark)
- *connsecmark = skb->secmark;
+ ct = nf_ct_get(skb, &ctinfo);
+ if (ct && !ct->secmark)
+ ct->secmark = skb->secmark;
}
}
static void secmark_restore(struct sk_buff *skb)
{
if (!skb->secmark) {
- u32 *connsecmark;
+ struct nf_conn *ct;
enum ip_conntrack_info ctinfo;
- connsecmark = nf_ct_get_secmark(skb, &ctinfo);
- if (connsecmark && *connsecmark)
- if (skb->secmark != *connsecmark)
- skb->secmark = *connsecmark;
+ ct = nf_ct_get(skb, &ctinfo);
+ if (ct && ct->secmark)
+ skb->secmark = ct->secmark;
}
}
static unsigned int target(struct sk_buff **pskb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target,
- const void *targinfo, void *userinfo)
+ const void *targinfo)
{
struct sk_buff *skb = *pskb;
const struct xt_connsecmark_target_info *info = targinfo;
return XT_CONTINUE;
}
-static int checkentry(const char *tablename, const void *entry,
- const struct xt_target *target, void *targinfo,
- unsigned int targinfosize, unsigned int hook_mask)
+static bool checkentry(const char *tablename, const void *entry,
+ const struct xt_target *target, void *targinfo,
+ unsigned int hook_mask)
{
- struct xt_connsecmark_target_info *info = targinfo;
+ const struct xt_connsecmark_target_info *info = targinfo;
+ if (nf_ct_l3proto_try_module_get(target->family) < 0) {
+ printk(KERN_WARNING "can't load conntrack support for "
+ "proto=%d\n", target->family);
+ return false;
+ }
switch (info->mode) {
case CONNSECMARK_SAVE:
case CONNSECMARK_RESTORE:
default:
printk(KERN_INFO PFX "invalid mode: %hu\n", info->mode);
- return 0;
+ return false;
}
- return 1;
+ return true;
}
-static struct xt_target ipt_connsecmark_reg = {
- .name = "CONNSECMARK",
- .target = target,
- .targetsize = sizeof(struct xt_connsecmark_target_info),
- .table = "mangle",
- .checkentry = checkentry,
- .me = THIS_MODULE,
- .family = AF_INET,
- .revision = 0,
-};
+static void
+destroy(const struct xt_target *target, void *targinfo)
+{
+ nf_ct_l3proto_module_put(target->family);
+}
-static struct xt_target ip6t_connsecmark_reg = {
- .name = "CONNSECMARK",
- .target = target,
- .targetsize = sizeof(struct xt_connsecmark_target_info),
- .table = "mangle",
- .checkentry = checkentry,
- .me = THIS_MODULE,
- .family = AF_INET6,
- .revision = 0,
+static struct xt_target xt_connsecmark_target[] __read_mostly = {
+ {
+ .name = "CONNSECMARK",
+ .family = AF_INET,
+ .checkentry = checkentry,
+ .destroy = destroy,
+ .target = target,
+ .targetsize = sizeof(struct xt_connsecmark_target_info),
+ .table = "mangle",
+ .me = THIS_MODULE,
+ },
+ {
+ .name = "CONNSECMARK",
+ .family = AF_INET6,
+ .checkentry = checkentry,
+ .destroy = destroy,
+ .target = target,
+ .targetsize = sizeof(struct xt_connsecmark_target_info),
+ .table = "mangle",
+ .me = THIS_MODULE,
+ },
};
static int __init xt_connsecmark_init(void)
{
- int err;
-
- need_conntrack();
-
- err = xt_register_target(&ipt_connsecmark_reg);
- if (err)
- return err;
-
- err = xt_register_target(&ip6t_connsecmark_reg);
- if (err)
- xt_unregister_target(&ipt_connsecmark_reg);
-
- return err;
+ return xt_register_targets(xt_connsecmark_target,
+ ARRAY_SIZE(xt_connsecmark_target));
}
static void __exit xt_connsecmark_fini(void)
{
- xt_unregister_target(&ip6t_connsecmark_reg);
- xt_unregister_target(&ipt_connsecmark_reg);
+ xt_unregister_targets(xt_connsecmark_target,
+ ARRAY_SIZE(xt_connsecmark_target));
}
module_init(xt_connsecmark_init);