diff mbox

[41/84] netfilter: xtables: untangle spaghetti if clauses in checkentry

Message ID 1273522735-24672-42-git-send-email-kaber@trash.net
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Patrick McHardy May 10, 2010, 8:18 p.m. UTC 
From: Jan Engelhardt <jengelh@medozas.de>

As I'm changing the return values soon, I want to have a clear visual
path.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
---
 net/netfilter/xt_dccp.c |   10 +++++++---
 net/netfilter/xt_sctp.c |   20 ++++++++++++--------
 2 files changed, 19 insertions(+), 11 deletions(-)
diff mbox

Patch

diff --git a/net/netfilter/xt_dccp.c b/net/netfilter/xt_dccp.c
index 0989f29..8f6014f 100644
--- a/net/netfilter/xt_dccp.c
+++ b/net/netfilter/xt_dccp.c
@@ -127,9 +127,13 @@  static bool dccp_mt_check(const struct xt_mtchk_param *par)
 {
 	const struct xt_dccp_info *info = par->matchinfo;
 
-	return !(info->flags & ~XT_DCCP_VALID_FLAGS)
-		&& !(info->invflags & ~XT_DCCP_VALID_FLAGS)
-		&& !(info->invflags & ~info->flags);
+	if (info->flags & ~XT_DCCP_VALID_FLAGS)
+		return false;
+	if (info->invflags & ~XT_DCCP_VALID_FLAGS)
+		return false;
+	if (info->invflags & ~info->flags)
+		return false;
+	return true;
 }
 
 static struct xt_match dccp_mt_reg[] __read_mostly = {
diff --git a/net/netfilter/xt_sctp.c b/net/netfilter/xt_sctp.c
index 43c7e1d..977b182 100644
--- a/net/netfilter/xt_sctp.c
+++ b/net/netfilter/xt_sctp.c
@@ -148,14 +148,18 @@  static bool sctp_mt_check(const struct xt_mtchk_param *par)
 {
 	const struct xt_sctp_info *info = par->matchinfo;
 
-	return !(info->flags & ~XT_SCTP_VALID_FLAGS)
-		&& !(info->invflags & ~XT_SCTP_VALID_FLAGS)
-		&& !(info->invflags & ~info->flags)
-		&& ((!(info->flags & XT_SCTP_CHUNK_TYPES)) ||
-			(info->chunk_match_type &
-				(SCTP_CHUNK_MATCH_ALL
-				| SCTP_CHUNK_MATCH_ANY
-				| SCTP_CHUNK_MATCH_ONLY)));
+	if (info->flags & ~XT_SCTP_VALID_FLAGS)
+		return false;
+	if (info->invflags & ~XT_SCTP_VALID_FLAGS)
+		return false;
+	if (info->invflags & ~info->flags)
+		return false;
+	if (!(info->flags & XT_SCTP_CHUNK_TYPES))
+		return true;
+	if (info->chunk_match_type & (SCTP_CHUNK_MATCH_ALL |
+	    SCTP_CHUNK_MATCH_ANY | SCTP_CHUNK_MATCH_ONLY))
+		return true;
+	return false;
 }
 
 static struct xt_match sctp_mt_reg[] __read_mostly = {