diff options
| -rw-r--r-- | net/netfilter/xt_mark.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/net/netfilter/xt_mark.c b/net/netfilter/xt_mark.c index e8059cd..934dddf 100644 --- a/net/netfilter/xt_mark.c +++ b/net/netfilter/xt_mark.c @@ -50,6 +50,37 @@ checkentry(const char *tablename, return 1; } +#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 void compat_from_user(void *dst, void *src) +{ + 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 compat_to_user(void __user *dst, void *src) +{ + 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 xt_mark_match[] = { { .name = "mark", @@ -57,6 +88,11 @@ static struct xt_match xt_mark_match[] = { .checkentry = checkentry, .match = match, .matchsize = sizeof(struct xt_mark_info), +#ifdef CONFIG_COMPAT + .compatsize = sizeof(struct compat_xt_mark_info), + .compat_from_user = compat_from_user, + .compat_to_user = compat_to_user, +#endif .me = THIS_MODULE, }, { |