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netfilter: xtables: remove xt_CONNMARK v0

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Superseded by xt_CONNMARK v1 (v2.6.24-2917-g0dc8c76).

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
This commit is contained in:
Jan Engelhardt 2009-06-12 18:42:12 +02:00
parent 7cd1837b5d
commit e973a70ca0
3 changed files with 11 additions and 132 deletions
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3
Documentation/feature-removal-schedule.txt
View file

@ -238,9 +238,6 @@ What (Why):
- "forwarding" header files like ipt_mac.h in
include/linux/netfilter_ipv4/ and include/linux/netfilter_ipv6/
- xt_CONNMARK match revision 0
(superseded by xt_CONNMARK match revision 1)
- xt_MARK target revisions 0 and 1
(superseded by xt_MARK match revision 2)

6
include/linux/netfilter/xt_CONNMARK.h
View file

@ -18,12 +18,6 @@ enum {
XT_CONNMARK_RESTORE
};
struct xt_connmark_target_info {
unsigned long mark;
unsigned long mask;
__u8 mode;
};
struct xt_connmark_tginfo1 {
__u32 ctmark, ctmask, nfmask;
__u8 mode;

134
net/netfilter/xt_CONNMARK.c
View file

@ -35,45 +35,6 @@ MODULE_ALIAS("ip6t_CONNMARK");
#include <linux/netfilter/xt_CONNMARK.h>
#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)
{
@ -112,30 +73,6 @@ connmark_tg(struct sk_buff *skb, const struct xt_target_param *par)
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->family) < 0) {
printk(KERN_WARNING "can't load conntrack support for "
"proto=%u\n", par->family);
return false;
}
return true;
}
static bool connmark_tg_check(const struct xt_tgchk_param *par)
{
if (nf_ct_l3proto_try_module_get(par->family) < 0) {
@ -151,74 +88,25 @@ static void connmark_tg_destroy(const struct xt_tgdtor_param *par)
nf_ct_l3proto_module_put(par->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;
}
#endif /* CONFIG_COMPAT */
static struct xt_target connmark_tg_reg[] __read_mostly = {
{
.name = "CONNMARK",
.revision = 0,
.family = NFPROTO_UNSPEC,
.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_UNSPEC,
.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);