---

yaml
---
r: 78447
b: refs/heads/master
c: dd6303d
h: refs/heads/master
i:
  78445: 15ddcc1
  78443: 40f6a1e
  78439: 8464d69
  78431: 01629d2
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: af3b867e2f6b72422bc7aacb1f1e26f47a9649bc
+refs/heads/master: dd6303df095d18b0c524a76a42f57bcc679b2039

trunk/net/dccp/feat.c

@@ -24,11 +24,7 @@ int dccp_feat_change(struct dccp_minisock *dmsk, u8 type, u8 feature,
 
 	dccp_feat_debug(type, feature, *val);
 
-	if (!dccp_feat_is_valid_type(type)) {
-		DCCP_WARN("option type %d invalid in negotiation\n", type);
-		return 1;
-	}
-	if (!dccp_feat_is_valid_length(type, feature, len)) {
+	if (len > 3) {
 		DCCP_WARN("invalid length %d\n", len);
 		return 1;
 	}
@@ -637,12 +633,12 @@ const char *dccp_feat_name(const u8 feat)
 		[DCCPF_MIN_CSUM_COVER]	= "Min. Csum Coverage",
 		[DCCPF_DATA_CHECKSUM]	= "Send Data Checksum",
 	};
+	if (feat > DCCPF_DATA_CHECKSUM && feat < DCCPF_MIN_CCID_SPECIFIC)
+		return feature_names[DCCPF_RESERVED];
+
 	if (feat >= DCCPF_MIN_CCID_SPECIFIC)
 		return "CCID-specific";
 
-	if (dccp_feat_is_reserved(feat))
-		return feature_names[DCCPF_RESERVED];
-
 	return feature_names[feat];
 }
 

trunk/net/dccp/feat.h

@@ -14,32 +14,6 @@
 #include <linux/types.h>
 #include "dccp.h"
 
-static inline int dccp_feat_is_valid_length(u8 type, u8 feature, u8 len)
-{
-	/* sec. 6.1: Confirm has at least length 3,
-	 * sec. 6.2: Change  has at least length 4 */
-	if (len < 3)
-		return 1;
-	if (len < 4  && (type == DCCPO_CHANGE_L || type == DCCPO_CHANGE_R))
-		return 1;
-	/* XXX: add per-feature length validation (sec. 6.6.8) */
-	return 0;
-}
-
-static inline int dccp_feat_is_reserved(const u8 feat)
-{
-	return (feat > DCCPF_DATA_CHECKSUM &&
-		feat < DCCPF_MIN_CCID_SPECIFIC) ||
-		feat == DCCPF_RESERVED;
-}
-
-/* feature negotiation knows only these four option types (RFC 4340, sec. 6) */
-static inline int dccp_feat_is_valid_type(const u8 optnum)
-{
-	return optnum >= DCCPO_CHANGE_L && optnum <= DCCPO_CONFIRM_R;
-
-}
-
 #ifdef CONFIG_IP_DCCP_DEBUG
 extern const char *dccp_feat_typename(const u8 type);
 extern const char *dccp_feat_name(const u8 feat);