1 files changed, 43 insertions, 90 deletions

diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h
index 93f26dd6e6cb..1fe509148689 100644
--- a/net/dccp/dccp.h
+++ b/net/dccp/dccp.h
@@ -59,8 +59,6 @@ extern void dccp_time_wait(struct sock *sk, int state, int timeo);
 
 #define DCCP_RTO_MAX ((unsigned)(120 * HZ)) /* FIXME: using TCP value */
 
-extern struct proto dccp_prot;
-
 /* is seq1 < seq2 ? */
 static inline int before48(const u64 seq1, const u64 seq2)
 {
@@ -120,7 +118,6 @@ DECLARE_SNMP_STAT(struct dccp_mib, dccp_statistics);
 
 extern int  dccp_retransmit_skb(struct sock *sk, struct sk_buff *skb);
 
-extern int dccp_send_response(struct sock *sk);
 extern void dccp_send_ack(struct sock *sk);
 extern void dccp_send_delayed_ack(struct sock *sk);
 extern void dccp_send_sync(struct sock *sk, const u64 seq,
@@ -140,53 +137,8 @@ extern unsigned int dccp_sync_mss(struct sock *sk, u32 pmtu);
 extern const char *dccp_packet_name(const int type);
 extern const char *dccp_state_name(const int state);
 
-static inline void dccp_set_state(struct sock *sk, const int state)
-{
-	const int oldstate = sk->sk_state;
-
-	dccp_pr_debug("%s(%p) %-10.10s -> %s\n",
-		      dccp_role(sk), sk,
-		      dccp_state_name(oldstate), dccp_state_name(state));
-	WARN_ON(state == oldstate);
-
-	switch (state) {
-	case DCCP_OPEN:
-		if (oldstate != DCCP_OPEN)
-			DCCP_INC_STATS(DCCP_MIB_CURRESTAB);
-		break;
-
-	case DCCP_CLOSED:
-		if (oldstate == DCCP_CLOSING || oldstate == DCCP_OPEN)
-			DCCP_INC_STATS(DCCP_MIB_ESTABRESETS);
-
-		sk->sk_prot->unhash(sk);
-		if (inet_csk(sk)->icsk_bind_hash != NULL &&
-		    !(sk->sk_userlocks & SOCK_BINDPORT_LOCK))
-			inet_put_port(&dccp_hashinfo, sk);
-		/* fall through */
-	default:
-		if (oldstate == DCCP_OPEN)
-			DCCP_DEC_STATS(DCCP_MIB_CURRESTAB);
-	}
-
-	/* Change state AFTER socket is unhashed to avoid closed
-	 * socket sitting in hash tables.
-	 */
-	sk->sk_state = state;
-}
-
-static inline void dccp_done(struct sock *sk)
-{
-	dccp_set_state(sk, DCCP_CLOSED);
-	dccp_clear_xmit_timers(sk);
-
-	sk->sk_shutdown = SHUTDOWN_MASK;
-
-	if (!sock_flag(sk, SOCK_DEAD))
-		sk->sk_state_change(sk);
-	else
-		inet_csk_destroy_sock(sk);
-}
+extern void dccp_set_state(struct sock *sk, const int state);
+extern void dccp_done(struct sock *sk);
 
 static inline void dccp_openreq_init(struct request_sock *req,
 				     struct dccp_sock *dp,
@@ -209,10 +161,6 @@ extern struct sock *dccp_create_openreq_child(struct sock *sk,
 
 extern int dccp_v4_do_rcv(struct sock *sk, struct sk_buff *skb);
 
-extern void dccp_v4_err(struct sk_buff *skb, u32);
-
-extern int dccp_v4_rcv(struct sk_buff *skb);
-
 extern struct sock *dccp_v4_request_recv_sock(struct sock *sk,
 					      struct sk_buff *skb,
 					      struct request_sock *req,
@@ -228,24 +176,30 @@ extern int dccp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
 extern int dccp_rcv_established(struct sock *sk, struct sk_buff *skb,
 				const struct dccp_hdr *dh, const unsigned len);
 
-extern int dccp_v4_init_sock(struct sock *sk);
-extern int dccp_v4_destroy_sock(struct sock *sk);
+extern int dccp_init_sock(struct sock *sk, const __u8 ctl_sock_initialized);
+extern int dccp_destroy_sock(struct sock *sk);
 
 extern void		dccp_close(struct sock *sk, long timeout);
 extern struct sk_buff	*dccp_make_response(struct sock *sk,
 					    struct dst_entry *dst,
 					    struct request_sock *req);
-extern struct sk_buff	*dccp_make_reset(struct sock *sk,
-					 struct dst_entry *dst,
-					 enum dccp_reset_codes code);
 
 extern int	   dccp_connect(struct sock *sk);
 extern int	   dccp_disconnect(struct sock *sk, int flags);
+extern void	   dccp_hash(struct sock *sk);
 extern void	   dccp_unhash(struct sock *sk);
 extern int	   dccp_getsockopt(struct sock *sk, int level, int optname,
 				   char __user *optval, int __user *optlen);
 extern int	   dccp_setsockopt(struct sock *sk, int level, int optname,
 				   char __user *optval, int optlen);
+#ifdef CONFIG_COMPAT
+extern int	   compat_dccp_getsockopt(struct sock *sk,
+				int level, int optname,
+				char __user *optval, int __user *optlen);
+extern int	   compat_dccp_setsockopt(struct sock *sk,
+				int level, int optname,
+				char __user *optval, int optlen);
+#endif
 extern int	   dccp_ioctl(struct sock *sk, int cmd, unsigned long arg);
 extern int	   dccp_sendmsg(struct kiocb *iocb, struct sock *sk,
 				struct msghdr *msg, size_t size);
@@ -262,15 +216,14 @@ extern int	   dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr,
 				   int addr_len);
 
 extern int	   dccp_v4_checksum(const struct sk_buff *skb,
-				    const u32 saddr, const u32 daddr);
+				    const __be32 saddr, const __be32 daddr);
 
-extern int	   dccp_v4_send_reset(struct sock *sk,
-				      enum dccp_reset_codes code);
+extern int	   dccp_send_reset(struct sock *sk, enum dccp_reset_codes code);
 extern void	   dccp_send_close(struct sock *sk, const int active);
 extern int	   dccp_invalid_packet(struct sk_buff *skb);
 
 static inline int dccp_bad_service_code(const struct sock *sk,
-					const __u32 service)
+					const __be32 service)
 {
 	const struct dccp_sock *dp = dccp_sk(sk);
 
@@ -334,41 +287,29 @@ static inline void dccp_hdr_set_seq(struct dccp_hdr *dh, const u64 gss)
 {
 	struct dccp_hdr_ext *dhx = (struct dccp_hdr_ext *)((void *)dh +
 							   sizeof(*dh));
-
-#if defined(__LITTLE_ENDIAN_BITFIELD)
-	dh->dccph_seq	   = htonl((gss >> 32)) >> 8;
-#elif defined(__BIG_ENDIAN_BITFIELD)
-	dh->dccph_seq	   = htonl((gss >> 32));
-#else
-#error  "Adjust your <asm/byteorder.h> defines"
-#endif
+	dh->dccph_seq2 = 0;
+	dh->dccph_seq = htons((gss >> 32) & 0xfffff);
 	dhx->dccph_seq_low = htonl(gss & 0xffffffff);
 }
 
 static inline void dccp_hdr_set_ack(struct dccp_hdr_ack_bits *dhack,
 				    const u64 gsr)
 {
-#if defined(__LITTLE_ENDIAN_BITFIELD)
-	dhack->dccph_ack_nr_high = htonl((gsr >> 32)) >> 8;
-#elif defined(__BIG_ENDIAN_BITFIELD)
-	dhack->dccph_ack_nr_high = htonl((gsr >> 32));
-#else
-#error  "Adjust your <asm/byteorder.h> defines"
-#endif
+	dhack->dccph_reserved1 = 0;
+	dhack->dccph_ack_nr_high = htons(gsr >> 32);
 	dhack->dccph_ack_nr_low  = htonl(gsr & 0xffffffff);
 }
 
 static inline void dccp_update_gsr(struct sock *sk, u64 seq)
 {
 	struct dccp_sock *dp = dccp_sk(sk);
+	const struct dccp_minisock *dmsk = dccp_msk(sk);
 
 	dp->dccps_gsr = seq;
 	dccp_set_seqno(&dp->dccps_swl,
-		       (dp->dccps_gsr + 1 -
-		        (dp->dccps_options.dccpo_sequence_window / 4)));
+		       dp->dccps_gsr + 1 - (dmsk->dccpms_sequence_window / 4));
 	dccp_set_seqno(&dp->dccps_swh,
-		       (dp->dccps_gsr +
-			(3 * dp->dccps_options.dccpo_sequence_window) / 4));
+		       dp->dccps_gsr + (3 * dmsk->dccpms_sequence_window) / 4);
 }
 
 static inline void dccp_update_gss(struct sock *sk, u64 seq)
@@ -378,7 +319,7 @@ static inline void dccp_update_gss(struct sock *sk, u64 seq)
 	dp->dccps_awh = dp->dccps_gss = seq;
 	dccp_set_seqno(&dp->dccps_awl,
 		       (dp->dccps_gss -
-			dp->dccps_options.dccpo_sequence_window + 1));
+			dccp_msk(sk)->dccpms_sequence_window + 1));
 }
 				
 static inline int dccp_ack_pending(const struct sock *sk)
@@ -386,24 +327,22 @@ static inline int dccp_ack_pending(const struct sock *sk)
 	const struct dccp_sock *dp = dccp_sk(sk);
 	return dp->dccps_timestamp_echo != 0 ||
 #ifdef CONFIG_IP_DCCP_ACKVEC
-	       (dp->dccps_options.dccpo_send_ack_vector &&
+	       (dccp_msk(sk)->dccpms_send_ack_vector &&
 		dccp_ackvec_pending(dp->dccps_hc_rx_ackvec)) ||
 #endif
 	       inet_csk_ack_scheduled(sk);
 }
 
-extern void dccp_insert_options(struct sock *sk, struct sk_buff *skb);
-extern void dccp_insert_option_elapsed_time(struct sock *sk,
+extern int dccp_insert_options(struct sock *sk, struct sk_buff *skb);
+extern int dccp_insert_option_elapsed_time(struct sock *sk,
 					    struct sk_buff *skb,
 					    u32 elapsed_time);
-extern void dccp_insert_option_timestamp(struct sock *sk,
+extern int dccp_insert_option_timestamp(struct sock *sk,
 					 struct sk_buff *skb);
-extern void dccp_insert_option(struct sock *sk, struct sk_buff *skb,
+extern int dccp_insert_option(struct sock *sk, struct sk_buff *skb,
 			       unsigned char option,
 			       const void *value, unsigned char len);
 
-extern struct socket *dccp_ctl_socket;
-
 extern void dccp_timestamp(const struct sock *sk, struct timeval *tv);
 
 static inline suseconds_t timeval_usecs(const struct timeval *tv)
@@ -444,4 +383,18 @@ static inline void timeval_sub_usecs(struct timeval *tv,
 	}
 }
 
+#ifdef CONFIG_SYSCTL
+extern int dccp_sysctl_init(void);
+extern void dccp_sysctl_exit(void);
+#else
+static inline int dccp_sysctl_init(void)
+{
+	return 0;
+}
+
+static inline void dccp_sysctl_exit(void)
+{
+}
+#endif
+
 #endif /* _DCCP_H */