diff options
| -rw-r--r-- | net/netfilter/xt_MARK.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/net/netfilter/xt_MARK.c b/net/netfilter/xt_MARK.c index 782f8d8c3edf..c6e860a7114f 100644 --- a/net/netfilter/xt_MARK.c +++ b/net/netfilter/xt_MARK.c @@ -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, }, |