1 files changed, 0 insertions, 84 deletions
diff --git a/target/linux/generic/patches-4.1/610-netfilter_match_bypass_default_checks.patch b/target/linux/generic/patches-4.1/610-netfilter_match_bypass_default_checks.patch
deleted file mode 100644
index 1187845879..0000000000
--- a/target/linux/generic/patches-4.1/610-netfilter_match_bypass_default_checks.patch
+++ /dev/null
@@ -1,84 +0,0 @@
---- a/include/uapi/linux/netfilter_ipv4/ip_tables.h
-+++ b/include/uapi/linux/netfilter_ipv4/ip_tables.h
-@@ -87,6 +87,7 @@ struct ipt_ip {
- #define IPT_F_FRAG		0x01	/* Set if rule is a fragment rule */
- #define IPT_F_GOTO		0x02	/* Set if jump is a goto */
- #define IPT_F_MASK		0x03	/* All possible flag bits mask. */
-+#define IPT_F_NO_DEF_MATCH	0x80	/* Internal: no default match rules present */
- 
- /* Values for "inv" field in struct ipt_ip. */
- #define IPT_INV_VIA_IN		0x01	/* Invert the sense of IN IFACE. */
---- a/net/ipv4/netfilter/ip_tables.c
-+++ b/net/ipv4/netfilter/ip_tables.c
-@@ -82,6 +82,9 @@ ip_packet_match(const struct iphdr *ip,
- 
- #define FWINV(bool, invflg) ((bool) ^ !!(ipinfo->invflags & (invflg)))
- 
-+	if (ipinfo->flags & IPT_F_NO_DEF_MATCH)
-+		return true;
-+
- 	if (FWINV((ip->saddr&ipinfo->smsk.s_addr) != ipinfo->src.s_addr,
- 		  IPT_INV_SRCIP) ||
- 	    FWINV((ip->daddr&ipinfo->dmsk.s_addr) != ipinfo->dst.s_addr,
-@@ -135,6 +138,29 @@ ip_packet_match(const struct iphdr *ip,
- 	return true;
- }
- 
-+static void
-+ip_checkdefault(struct ipt_ip *ip)
-+{
-+	static const char iface_mask[IFNAMSIZ] = {};
-+
-+	if (ip->invflags || ip->flags & IPT_F_FRAG)
-+		return;
-+
-+	if (memcmp(ip->iniface_mask, iface_mask, IFNAMSIZ) != 0)
-+		return;
-+
-+	if (memcmp(ip->outiface_mask, iface_mask, IFNAMSIZ) != 0)
-+		return;
-+
-+	if (ip->smsk.s_addr || ip->dmsk.s_addr)
-+		return;
-+
-+	if (ip->proto)
-+		return;
-+
-+	ip->flags |= IPT_F_NO_DEF_MATCH;
-+}
-+
- static bool
- ip_checkentry(const struct ipt_ip *ip)
- {
-@@ -649,6 +675,8 @@ find_check_entry(struct ipt_entry *e, st
- 	struct xt_mtchk_param mtpar;
- 	struct xt_entry_match *ematch;
- 
-+	ip_checkdefault(&e->ip);
-+
- 	j = 0;
- 	mtpar.net	= net;
- 	mtpar.table     = name;
-@@ -941,6 +969,7 @@ copy_entries_to_user(unsigned int total_
- 	const struct xt_table_info *private = table->private;
- 	int ret = 0;
- 	const void *loc_cpu_entry;
-+	u8 flags;
- 
- 	counters = alloc_counters(table);
- 	if (IS_ERR(counters))
-@@ -971,6 +1000,14 @@ copy_entries_to_user(unsigned int total_
- 			ret = -EFAULT;
- 			goto free_counters;
- 		}
-+
-+		flags = e->ip.flags & IPT_F_MASK;
-+		if (copy_to_user(userptr + off
-+				 + offsetof(struct ipt_entry, ip.flags),
-+				 &flags, sizeof(flags)) != 0) {
-+			ret = -EFAULT;
-+			goto free_counters;
-+		}
- 
- 		for (i = sizeof(struct ipt_entry);
- 		     i < e->target_offset;