[NETFILTER] Fix sparse endian warnings in pptp helper

Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: NHarald Welte <laforge@netfilter.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

include/linux/netfilter_ipv4/ip_conntrack_pptp.h

@@ -60,8 +60,8 @@ struct ip_ct_pptp_expect {
 
 struct pptp_pkt_hdr {
 	__u16	packetLength;
-	__u16	packetType;
-	__u32	magicCookie;
+	__be16	packetType;
+	__be32	magicCookie;
 };
 
 /* PptpControlMessageType values */
@@ -93,7 +93,7 @@ struct pptp_pkt_hdr {
 #define PPTP_REMOVE_DEVICE_ERROR	6
 
 struct PptpControlHeader {
-	__u16	messageType;
+	__be16	messageType;
 	__u16	reserved;
 };
 
@@ -106,13 +106,13 @@ struct PptpControlHeader {
 #define PPTP_BEARER_CAP_DIGITAL		0x2
 
 struct PptpStartSessionRequest {
-	__u16	protocolVersion;
+	__be16	protocolVersion;
 	__u8	reserved1;
 	__u8	reserved2;
-	__u32	framingCapability;
-	__u32	bearerCapability;
-	__u16	maxChannels;
-	__u16	firmwareRevision;
+	__be32	framingCapability;
+	__be32	bearerCapability;
+	__be16	maxChannels;
+	__be16	firmwareRevision;
 	__u8	hostName[64];
 	__u8	vendorString[64];
 };
@@ -125,13 +125,13 @@ struct PptpStartSessionRequest {
 #define PPTP_START_UNKNOWN_PROTOCOL	5
 
 struct PptpStartSessionReply {
-	__u16	protocolVersion;
+	__be16	protocolVersion;
 	__u8	resultCode;
 	__u8	generalErrorCode;
-	__u32	framingCapability;
-	__u32	bearerCapability;
-	__u16	maxChannels;
-	__u16	firmwareRevision;
+	__be32	framingCapability;
+	__be32	bearerCapability;
+	__be16	maxChannels;
+	__be16	firmwareRevision;
 	__u8	hostName[64];
 	__u8	vendorString[64];
 };
@@ -155,7 +155,7 @@ struct PptpStopSessionReply {
 };
 
 struct PptpEchoRequest {
-	__u32 identNumber;
+	__be32 identNumber;
 };
 
 /* PptpEchoReplyResultCode */
@@ -163,7 +163,7 @@ struct PptpEchoRequest {
 #define PPTP_ECHO_GENERAL_ERROR		2
 
 struct PptpEchoReply {
-	__u32	identNumber;
+	__be32	identNumber;
 	__u8	resultCode;
 	__u8	generalErrorCode;
 	__u16	reserved;
@@ -180,16 +180,16 @@ struct PptpEchoReply {
 #define PPTP_DONT_CARE_BEARER_TYPE	3
 
 struct PptpOutCallRequest {
-	__u16	callID;
-	__u16	callSerialNumber;
-	__u32	minBPS;
-	__u32	maxBPS;
-	__u32	bearerType;
-	__u32	framingType;
-	__u16	packetWindow;
-	__u16	packetProcDelay;
+	__be16	callID;
+	__be16	callSerialNumber;
+	__be32	minBPS;
+	__be32	maxBPS;
+	__be32	bearerType;
+	__be32	framingType;
+	__be16	packetWindow;
+	__be16	packetProcDelay;
 	__u16	reserved1;
-	__u16	phoneNumberLength;
+	__be16	phoneNumberLength;
 	__u16	reserved2;
 	__u8	phoneNumber[64];
 	__u8	subAddress[64];
@@ -205,24 +205,24 @@ struct PptpOutCallRequest {
 #define PPTP_OUTCALL_DONT_ACCEPT	7
 
 struct PptpOutCallReply {
-	__u16	callID;
-	__u16	peersCallID;
+	__be16	callID;
+	__be16	peersCallID;
 	__u8	resultCode;
 	__u8	generalErrorCode;
-	__u16	causeCode;
-	__u32	connectSpeed;
-	__u16	packetWindow;
-	__u16	packetProcDelay;
-	__u32	physChannelID;
+	__be16	causeCode;
+	__be32	connectSpeed;
+	__be16	packetWindow;
+	__be16	packetProcDelay;
+	__be32	physChannelID;
 };
 
 struct PptpInCallRequest {
-	__u16	callID;
-	__u16	callSerialNumber;
-	__u32	callBearerType;
-	__u32	physChannelID;
-	__u16	dialedNumberLength;
-	__u16	dialingNumberLength;
+	__be16	callID;
+	__be16	callSerialNumber;
+	__be32	callBearerType;
+	__be32	physChannelID;
+	__be16	dialedNumberLength;
+	__be16	dialingNumberLength;
 	__u8	dialedNumber[64];
 	__u8	dialingNumber[64];
 	__u8	subAddress[64];
@@ -234,54 +234,54 @@ struct PptpInCallRequest {
 #define PPTP_INCALL_DONT_ACCEPT		3
 
 struct PptpInCallReply {
-	__u16	callID;
-	__u16	peersCallID;
+	__be16	callID;
+	__be16	peersCallID;
 	__u8	resultCode;
 	__u8	generalErrorCode;
-	__u16	packetWindow;
-	__u16	packetProcDelay;
+	__be16	packetWindow;
+	__be16	packetProcDelay;
 	__u16	reserved;
 };
 
 struct PptpInCallConnected {
-	__u16	peersCallID;
+	__be16	peersCallID;
 	__u16	reserved;
-	__u32	connectSpeed;
-	__u16	packetWindow;
-	__u16	packetProcDelay;
-	__u32	callFramingType;
+	__be32	connectSpeed;
+	__be16	packetWindow;
+	__be16	packetProcDelay;
+	__be32	callFramingType;
 };
 
 struct PptpClearCallRequest {
-	__u16	callID;
+	__be16	callID;
 	__u16	reserved;
 };
 
 struct PptpCallDisconnectNotify {
-	__u16	callID;
+	__be16	callID;
 	__u8	resultCode;
 	__u8	generalErrorCode;
-	__u16	causeCode;
+	__be16	causeCode;
 	__u16	reserved;
 	__u8	callStatistics[128];
 };
 
 struct PptpWanErrorNotify {
-	__u16	peersCallID;
+	__be16	peersCallID;
 	__u16	reserved;
-	__u32	crcErrors;
-	__u32	framingErrors;
-	__u32	hardwareOverRuns;
-	__u32	bufferOverRuns;
-	__u32	timeoutErrors;
-	__u32	alignmentErrors;
+	__be32	crcErrors;
+	__be32	framingErrors;
+	__be32	hardwareOverRuns;
+	__be32	bufferOverRuns;
+	__be32	timeoutErrors;
+	__be32	alignmentErrors;
 };
 
 struct PptpSetLinkInfo {
-	__u16	peersCallID;
+	__be16	peersCallID;
 	__u16	reserved;
-	__u32	sendAccm;
-	__u32	recvAccm;
+	__be32	sendAccm;
+	__be32	recvAccm;
 };
 
 

include/linux/netfilter_ipv4/ip_conntrack_tuple.h

@@ -17,7 +17,7 @@ union ip_conntrack_manip_proto
 	u_int16_t all;
 
 	struct {
-		u_int16_t port;
+		__be16 port;
 	} tcp;
 	struct {
 		u_int16_t port;
@@ -29,7 +29,7 @@ union ip_conntrack_manip_proto
 		u_int16_t port;
 	} sctp;
 	struct {
-		u_int16_t key;	/* key is 32bit, pptp only uses 16 */
+		__be16 key;	/* key is 32bit, pptp only uses 16 */
 	} gre;
 };
 
@@ -65,7 +65,7 @@ struct ip_conntrack_tuple
 				u_int16_t port;
 			} sctp;
 			struct {
-				u_int16_t key;	/* key is 32bit, 
+				__be16 key;	/* key is 32bit, 
 						 * pptp only uses 16 */
 			} gre;
 		} u;

net/ipv4/netfilter/ip_conntrack_helper_pptp.c

@@ -223,8 +223,8 @@ static void pptp_destroy_siblings(struct ip_conntrack *ct)
 static inline int
 exp_gre(struct ip_conntrack *master,
 	u_int32_t seq,
-	u_int16_t callid,
-	u_int16_t peer_callid)
+	__be16 callid,
+	__be16 peer_callid)
 {
 	struct ip_conntrack_tuple inv_tuple;
 	struct ip_conntrack_tuple exp_tuples[] = {
@@ -263,7 +263,7 @@ exp_gre(struct ip_conntrack *master,
 	exp_orig->mask.src.ip = 0xffffffff;
 	exp_orig->mask.src.u.all = 0;
 	exp_orig->mask.dst.u.all = 0;
-	exp_orig->mask.dst.u.gre.key = 0xffff;
+	exp_orig->mask.dst.u.gre.key = htons(0xffff);
 	exp_orig->mask.dst.ip = 0xffffffff;
 	exp_orig->mask.dst.protonum = 0xff;
 		
@@ -340,7 +340,8 @@ pptp_inbound_pkt(struct sk_buff **pskb,
 	unsigned int reqlen;
 	union pptp_ctrl_union _pptpReq, *pptpReq;
 	struct ip_ct_pptp_master *info = &ct->help.ct_pptp_info;
-	u_int16_t msg, *cid, *pcid;
+	u_int16_t msg;
+	__be16 *cid, *pcid;
 	u_int32_t seq;	
 
 	ctlh = skb_header_pointer(*pskb, nexthdr_off, sizeof(_ctlh), &_ctlh);
@@ -551,7 +552,8 @@ pptp_outbound_pkt(struct sk_buff **pskb,
 	unsigned int reqlen;
 	union pptp_ctrl_union _pptpReq, *pptpReq;
 	struct ip_ct_pptp_master *info = &ct->help.ct_pptp_info;
-	u_int16_t msg, *cid, *pcid;
+	u_int16_t msg;
+	__be16 *cid, *pcid;
 
 	ctlh = skb_header_pointer(*pskb, nexthdr_off, sizeof(_ctlh), &_ctlh);
 	if (!ctlh)
@@ -755,7 +757,7 @@ static struct ip_conntrack_helper pptp = {
 			  } 
 		 },
 	.mask = { .src = { .ip = 0, 
-			   .u = { .tcp = { .port = 0xffff } } 
+			   .u = { .tcp = { .port = __constant_htons(0xffff) } } 
 			 }, 
 		  .dst = { .ip = 0, 
 			   .u = { .all = 0 },