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-rw-r--r--net/netfilter/xt_MARK.c34
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,
},