kernel: split patches folder up into backport, pending and hack folders

[openwrt/staging/chunkeey.git] / target / linux / generic / patches-3.18 / 610-netfilter_match_bypass_default_checks.patch

diff --git a/target/linux/generic/patches-3.18/610-netfilter_match_bypass_default_checks.patch b/target/linux/generic/patches-3.18/610-netfilter_match_bypass_default_checks.patch
deleted file mode 100644 (file)
index 74be425..0000000
--- a/target/linux/generic/patches-3.18/610-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)
- {
-@@ -650,6 +676,8 @@ 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;
-@@ -942,6 +970,7 @@ 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))
-@@ -972,6 +1001,14 @@ 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;