#include <net/netfilter/nf_conntrack_ecache.h>
static unsigned int
-connmark_tg_v0(struct sk_buff *skb, const struct xt_target_param *par)
-{
- const struct xt_connmark_target_info *markinfo = par->targinfo;
- struct nf_conn *ct;
- enum ip_conntrack_info ctinfo;
- u_int32_t diff;
- u_int32_t mark;
- u_int32_t newmark;
-
- ct = nf_ct_get(skb, &ctinfo);
- if (ct) {
- switch(markinfo->mode) {
- case XT_CONNMARK_SET:
- newmark = (ct->mark & ~markinfo->mask) | markinfo->mark;
- if (newmark != ct->mark) {
- ct->mark = newmark;
- nf_conntrack_event_cache(IPCT_MARK, ct);
- }
- break;
- case XT_CONNMARK_SAVE:
- newmark = (ct->mark & ~markinfo->mask) |
- (skb->mark & markinfo->mask);
- if (ct->mark != newmark) {
- ct->mark = newmark;
- nf_conntrack_event_cache(IPCT_MARK, ct);
- }
- break;
- case XT_CONNMARK_RESTORE:
- mark = skb->mark;
- diff = (ct->mark ^ mark) & markinfo->mask;
- skb->mark = mark ^ diff;
- break;
- }
- }
-
- return XT_CONTINUE;
-}
-
-static unsigned int
connmark_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct xt_connmark_tginfo1 *info = par->targinfo;
return XT_CONTINUE;
}
-static bool connmark_tg_check_v0(const struct xt_tgchk_param *par)
-{
- const struct xt_connmark_target_info *matchinfo = par->targinfo;
-
- if (matchinfo->mode == XT_CONNMARK_RESTORE) {
- if (strcmp(par->table, "mangle") != 0) {
- printk(KERN_WARNING "CONNMARK: restore can only be "
- "called from \"mangle\" table, not \"%s\"\n",
- par->table);
- return false;
- }
- }
- if (matchinfo->mark > 0xffffffff || matchinfo->mask > 0xffffffff) {
- printk(KERN_WARNING "CONNMARK: Only supports 32bit mark\n");
- return false;
- }
- if (nf_ct_l3proto_try_module_get(par->target->family) < 0) {
- printk(KERN_WARNING "can't load conntrack support for "
- "proto=%u\n", par->target->family);
- return false;
- }
- return true;
-}
-
static bool connmark_tg_check(const struct xt_tgchk_param *par)
{
- if (nf_ct_l3proto_try_module_get(par->target->family) < 0) {
+ if (nf_ct_l3proto_try_module_get(par->family) < 0) {
printk(KERN_WARNING "cannot load conntrack support for "
- "proto=%u\n", par->target->family);
+ "proto=%u\n", par->family);
return false;
}
return true;
static void connmark_tg_destroy(const struct xt_tgdtor_param *par)
{
- nf_ct_l3proto_module_put(par->target->family);
-}
-
-#ifdef CONFIG_COMPAT
-struct compat_xt_connmark_target_info {
- compat_ulong_t mark, mask;
- u_int8_t mode;
- u_int8_t __pad1;
- u_int16_t __pad2;
-};
-
-static void connmark_tg_compat_from_user_v0(void *dst, void *src)
-{
- const struct compat_xt_connmark_target_info *cm = src;
- struct xt_connmark_target_info m = {
- .mark = cm->mark,
- .mask = cm->mask,
- .mode = cm->mode,
- };
- memcpy(dst, &m, sizeof(m));
-}
-
-static int connmark_tg_compat_to_user_v0(void __user *dst, void *src)
-{
- const struct xt_connmark_target_info *m = src;
- struct compat_xt_connmark_target_info cm = {
- .mark = m->mark,
- .mask = m->mask,
- .mode = m->mode,
- };
- return copy_to_user(dst, &cm, sizeof(cm)) ? -EFAULT : 0;
+ nf_ct_l3proto_module_put(par->family);
}
-#endif /* CONFIG_COMPAT */
-static struct xt_target connmark_tg_reg[] __read_mostly = {
- {
- .name = "CONNMARK",
- .revision = 0,
- .family = NFPROTO_IPV4,
- .checkentry = connmark_tg_check_v0,
- .destroy = connmark_tg_destroy,
- .target = connmark_tg_v0,
- .targetsize = sizeof(struct xt_connmark_target_info),
-#ifdef CONFIG_COMPAT
- .compatsize = sizeof(struct compat_xt_connmark_target_info),
- .compat_from_user = connmark_tg_compat_from_user_v0,
- .compat_to_user = connmark_tg_compat_to_user_v0,
-#endif
- .me = THIS_MODULE
- },
- {
- .name = "CONNMARK",
- .revision = 0,
- .family = NFPROTO_IPV6,
- .checkentry = connmark_tg_check_v0,
- .destroy = connmark_tg_destroy,
- .target = connmark_tg_v0,
- .targetsize = sizeof(struct xt_connmark_target_info),
-#ifdef CONFIG_COMPAT
- .compatsize = sizeof(struct compat_xt_connmark_target_info),
- .compat_from_user = connmark_tg_compat_from_user_v0,
- .compat_to_user = connmark_tg_compat_to_user_v0,
-#endif
- .me = THIS_MODULE
- },
- {
- .name = "CONNMARK",
- .revision = 1,
- .family = NFPROTO_IPV4,
- .checkentry = connmark_tg_check,
- .target = connmark_tg,
- .targetsize = sizeof(struct xt_connmark_tginfo1),
- .destroy = connmark_tg_destroy,
- .me = THIS_MODULE,
- },
- {
- .name = "CONNMARK",
- .revision = 1,
- .family = NFPROTO_IPV6,
- .checkentry = connmark_tg_check,
- .target = connmark_tg,
- .targetsize = sizeof(struct xt_connmark_tginfo1),
- .destroy = connmark_tg_destroy,
- .me = THIS_MODULE,
- },
+static struct xt_target connmark_tg_reg __read_mostly = {
+ .name = "CONNMARK",
+ .revision = 1,
+ .family = NFPROTO_UNSPEC,
+ .checkentry = connmark_tg_check,
+ .target = connmark_tg,
+ .targetsize = sizeof(struct xt_connmark_tginfo1),
+ .destroy = connmark_tg_destroy,
+ .me = THIS_MODULE,
};
static int __init connmark_tg_init(void)
{
- return xt_register_targets(connmark_tg_reg,
- ARRAY_SIZE(connmark_tg_reg));
+ return xt_register_target(&connmark_tg_reg);
}
static void __exit connmark_tg_exit(void)
{
- xt_unregister_targets(connmark_tg_reg, ARRAY_SIZE(connmark_tg_reg));
+ xt_unregister_target(&connmark_tg_reg);
}
module_init(connmark_tg_init);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff