*
* (C) 1999-2001 Marc Boucher <marc@mbsi.ca>
* Copyright © CC Computer Consultants GmbH, 2007 - 2008
- * Jan Engelhardt <jengelh@computergmbh.de>
+ * Jan Engelhardt <jengelh@medozas.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Marc Boucher <marc@mbsi.ca>");
-MODULE_DESCRIPTION("Xtables: packet mark match");
+MODULE_DESCRIPTION("Xtables: packet mark operations");
MODULE_ALIAS("ipt_mark");
MODULE_ALIAS("ip6t_mark");
+MODULE_ALIAS("ipt_MARK");
+MODULE_ALIAS("ip6t_MARK");
-static bool
-mark_mt_v0(const struct sk_buff *skb, const struct net_device *in,
- const struct net_device *out, const struct xt_match *match,
- const void *matchinfo, int offset, unsigned int protoff,
- bool *hotdrop)
+static unsigned int
+mark_tg(struct sk_buff *skb, const struct xt_action_param *par)
{
- const struct xt_mark_info *info = matchinfo;
+ const struct xt_mark_tginfo2 *info = par->targinfo;
- return ((skb->mark & info->mask) == info->mark) ^ info->invert;
+ skb->mark = (skb->mark & ~info->mask) ^ info->mark;
+ return XT_CONTINUE;
}
static bool
-mark_mt(const struct sk_buff *skb, const struct net_device *in,
- const struct net_device *out, const struct xt_match *match,
- const void *matchinfo, int offset, unsigned int protoff, bool *hotdrop)
+mark_mt(const struct sk_buff *skb, struct xt_action_param *par)
{
- const struct xt_mark_mtinfo1 *info = matchinfo;
+ const struct xt_mark_mtinfo1 *info = par->matchinfo;
return ((skb->mark & info->mask) == info->mark) ^ info->invert;
}
-static bool
-mark_mt_check_v0(const char *tablename, const void *entry,
- const struct xt_match *match, void *matchinfo,
- unsigned int hook_mask)
-{
- const struct xt_mark_info *minfo = matchinfo;
-
- if (minfo->mark > 0xffffffff || minfo->mask > 0xffffffff) {
- printk(KERN_WARNING "mark: only supports 32bit mark\n");
- return false;
- }
- return true;
-}
-
-#ifdef CONFIG_COMPAT
-struct compat_xt_mark_info {
- compat_ulong_t mark, mask;
- u_int8_t invert;
- u_int8_t __pad1;
- u_int16_t __pad2;
+static struct xt_target mark_tg_reg __read_mostly = {
+ .name = "MARK",
+ .revision = 2,
+ .family = NFPROTO_UNSPEC,
+ .target = mark_tg,
+ .targetsize = sizeof(struct xt_mark_tginfo2),
+ .me = THIS_MODULE,
};
-static void mark_mt_compat_from_user_v0(void *dst, void *src)
-{
- const struct compat_xt_mark_info *cm = src;
- struct xt_mark_info m = {
- .mark = cm->mark,
- .mask = cm->mask,
- .invert = cm->invert,
- };
- memcpy(dst, &m, sizeof(m));
-}
-
-static int mark_mt_compat_to_user_v0(void __user *dst, void *src)
-{
- const struct xt_mark_info *m = src;
- struct compat_xt_mark_info cm = {
- .mark = m->mark,
- .mask = m->mask,
- .invert = m->invert,
- };
- return copy_to_user(dst, &cm, sizeof(cm)) ? -EFAULT : 0;
-}
-#endif /* CONFIG_COMPAT */
-
-static struct xt_match mark_mt_reg[] __read_mostly = {
- {
- .name = "mark",
- .revision = 0,
- .family = NFPROTO_IPV4,
- .checkentry = mark_mt_check_v0,
- .match = mark_mt_v0,
- .matchsize = sizeof(struct xt_mark_info),
-#ifdef CONFIG_COMPAT
- .compatsize = sizeof(struct compat_xt_mark_info),
- .compat_from_user = mark_mt_compat_from_user_v0,
- .compat_to_user = mark_mt_compat_to_user_v0,
-#endif
- .me = THIS_MODULE,
- },
- {
- .name = "mark",
- .revision = 0,
- .family = NFPROTO_IPV6,
- .checkentry = mark_mt_check_v0,
- .match = mark_mt_v0,
- .matchsize = sizeof(struct xt_mark_info),
-#ifdef CONFIG_COMPAT
- .compatsize = sizeof(struct compat_xt_mark_info),
- .compat_from_user = mark_mt_compat_from_user_v0,
- .compat_to_user = mark_mt_compat_to_user_v0,
-#endif
- .me = THIS_MODULE,
- },
- {
- .name = "mark",
- .revision = 1,
- .family = NFPROTO_IPV4,
- .match = mark_mt,
- .matchsize = sizeof(struct xt_mark_mtinfo1),
- .me = THIS_MODULE,
- },
- {
- .name = "mark",
- .revision = 1,
- .family = NFPROTO_IPV6,
- .match = mark_mt,
- .matchsize = sizeof(struct xt_mark_mtinfo1),
- .me = THIS_MODULE,
- },
+static struct xt_match mark_mt_reg __read_mostly = {
+ .name = "mark",
+ .revision = 1,
+ .family = NFPROTO_UNSPEC,
+ .match = mark_mt,
+ .matchsize = sizeof(struct xt_mark_mtinfo1),
+ .me = THIS_MODULE,
};
static int __init mark_mt_init(void)
{
- return xt_register_matches(mark_mt_reg, ARRAY_SIZE(mark_mt_reg));
+ int ret;
+
+ ret = xt_register_target(&mark_tg_reg);
+ if (ret < 0)
+ return ret;
+ ret = xt_register_match(&mark_mt_reg);
+ if (ret < 0) {
+ xt_unregister_target(&mark_tg_reg);
+ return ret;
+ }
+ return 0;
}
static void __exit mark_mt_exit(void)
{
- xt_unregister_matches(mark_mt_reg, ARRAY_SIZE(mark_mt_reg));
+ xt_unregister_match(&mark_mt_reg);
+ xt_unregister_target(&mark_tg_reg);
}
module_init(mark_mt_init);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff