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[NETFILTER]: xt_MARK: add compat conversion functions 

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy 2006-09-20 12:06:10 -07:00 committed by David S. Miller
parent bc80b65665
commit be7263b7b7
1 changed files with 34 additions and 0 deletions
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34
net/netfilter/xt_MARK.c
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@ -108,6 +108,35 @@ checkentry_v1(const char *tablename,
return 1;
}
#ifdef CONFIG_COMPAT
struct compat_xt_mark_target_info_v1 {
compat_ulong_t mark;
u_int8_t mode;
u_int8_t __pad1;
u_int16_t __pad2;
};
static void compat_from_user_v1(void *dst, void *src)
{
struct compat_xt_mark_target_info_v1 *cm = src;
struct xt_mark_target_info_v1 m = {
.mark = cm->mark,
.mode = cm->mode,
};
memcpy(dst, &m, sizeof(m));
}
static int compat_to_user_v1(void __user *dst, void *src)
{
struct xt_mark_target_info_v1 *m = src;
struct compat_xt_mark_target_info_v1 cm = {
.mark = m->mark,
.mode = m->mode,
};
return copy_to_user(dst, &cm, sizeof(cm)) ? -EFAULT : 0;
}
#endif /* CONFIG_COMPAT */
static struct xt_target xt_mark_target[] = {
{
.name = "MARK",
@ -126,6 +155,11 @@ static struct xt_target xt_mark_target[] = {
.checkentry = checkentry_v1,
.target = target_v1,
.targetsize = sizeof(struct xt_mark_target_info_v1),
#ifdef CONFIG_COMPAT
.compatsize = sizeof(struct compat_xt_mark_target_info_v1),
.compat_from_user = compat_from_user_v1,
.compat_to_user = compat_to_user_v1,
#endif
.table = "mangle",
.me = THIS_MODULE,
},