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path: root/target/linux/generic-2.6/patches-2.6.27/952-revert_xt_string_case_insensitive_match.patch
blob: 6f317e46678734b7c29287353884a0d04b206451 (plain)
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--- a/include/linux/netfilter/xt_string.h
+++ b/include/linux/netfilter/xt_string.h
@@ -4,11 +4,6 @@
 #define XT_STRING_MAX_PATTERN_SIZE 128
 #define XT_STRING_MAX_ALGO_NAME_SIZE 16
 
-enum {
-	XT_STRING_FLAG_INVERT		= 0x01,
-	XT_STRING_FLAG_IGNORECASE	= 0x02
-};
-
 struct xt_string_info
 {
 	u_int16_t from_offset;
@@ -16,15 +11,7 @@ struct xt_string_info
 	char	  algo[XT_STRING_MAX_ALGO_NAME_SIZE];
 	char 	  pattern[XT_STRING_MAX_PATTERN_SIZE];
 	u_int8_t  patlen;
-	union {
-		struct {
-			u_int8_t  invert;
-		} v0;
-
-		struct {
-			u_int8_t  flags;
-		} v1;
-	} u;
+	u_int8_t  invert;
 
 	/* Used internally by the kernel */
 	struct ts_config __attribute__((aligned(8))) *config;
--- a/net/netfilter/xt_string.c
+++ b/net/netfilter/xt_string.c
@@ -29,16 +29,12 @@ string_mt(const struct sk_buff *skb, con
 {
 	const struct xt_string_info *conf = matchinfo;
 	struct ts_state state;
-	int invert;
 
 	memset(&state, 0, sizeof(struct ts_state));
 
-	invert = (match->revision == 0 ? conf->u.v0.invert :
-				    conf->u.v1.flags & XT_STRING_FLAG_INVERT);
-
 	return (skb_find_text((struct sk_buff *)skb, conf->from_offset,
 			     conf->to_offset, conf->config, &state)
-			     != UINT_MAX) ^ invert;
+			     != UINT_MAX) ^ conf->invert;
 }
 
 #define STRING_TEXT_PRIV(m) ((struct xt_string_info *)(m))
@@ -50,7 +46,6 @@ string_mt_check(const char *tablename, c
 {
 	struct xt_string_info *conf = matchinfo;
 	struct ts_config *ts_conf;
-	int flags = TS_AUTOLOAD;
 
 	/* Damn, can't handle this case properly with iptables... */
 	if (conf->from_offset > conf->to_offset)
@@ -59,15 +54,8 @@ string_mt_check(const char *tablename, c
 		return false;
 	if (conf->patlen > XT_STRING_MAX_PATTERN_SIZE)
 		return false;
-	if (match->revision == 1) {
-		if (conf->u.v1.flags &
-		    ~(XT_STRING_FLAG_IGNORECASE | XT_STRING_FLAG_INVERT))
-			return false;
-		if (conf->u.v1.flags & XT_STRING_FLAG_IGNORECASE)
-			flags |= TS_IGNORECASE;
-	}
 	ts_conf = textsearch_prepare(conf->algo, conf->pattern, conf->patlen,
-				     GFP_KERNEL, flags);
+				     GFP_KERNEL, TS_AUTOLOAD);
 	if (IS_ERR(ts_conf))
 		return false;
 
@@ -84,17 +72,6 @@ static void string_mt_destroy(const stru
 static struct xt_match string_mt_reg[] __read_mostly = {
 	{
 		.name 		= "string",
-		.revision	= 0,
-		.family		= AF_INET,
-		.checkentry	= string_mt_check,
-		.match 		= string_mt,
-		.destroy 	= string_mt_destroy,
-		.matchsize	= sizeof(struct xt_string_info),
-		.me 		= THIS_MODULE
-	},
-	{
-		.name 		= "string",
-		.revision	= 1,
 		.family		= AF_INET,
 		.checkentry	= string_mt_check,
 		.match 		= string_mt,
@@ -104,17 +81,6 @@ static struct xt_match string_mt_reg[] _
 	},
 	{
 		.name 		= "string",
-		.revision	= 0,
-		.family		= AF_INET6,
-		.checkentry	= string_mt_check,
-		.match 		= string_mt,
-		.destroy 	= string_mt_destroy,
-		.matchsize	= sizeof(struct xt_string_info),
-		.me 		= THIS_MODULE
-	},
-	{
-		.name 		= "string",
-		.revision	= 1,
 		.family		= AF_INET6,
 		.checkentry	= string_mt_check,
 		.match 		= string_mt,