[NETFILTER]: xt_connmark: add compat conversion functions
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/netfilter/xt_connmark.c b/net/netfilter/xt_connmark.c
index c9104d0..92a5726 100644
--- a/net/netfilter/xt_connmark.c
+++ b/net/netfilter/xt_connmark.c
@@ -81,6 +81,37 @@
#endif
}
+#ifdef CONFIG_COMPAT
+struct compat_xt_connmark_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_connmark_info *cm = src;
+ struct xt_connmark_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_connmark_info *m = src;
+ struct compat_xt_connmark_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_connmark_match[] = {
{
.name = "connmark",
@@ -89,6 +120,11 @@
.match = match,
.destroy = destroy,
.matchsize = sizeof(struct xt_connmark_info),
+#ifdef CONFIG_COMPAT
+ .compatsize = sizeof(struct compat_xt_connmark_info),
+ .compat_from_user = compat_from_user,
+ .compat_to_user = compat_to_user,
+#endif
.me = THIS_MODULE
},
{