[NET] Rename open_request to request_sock

Ok, this one just renames some stuff to have a better namespace and to
dissassociate it from TCP:

struct open_request  -> struct request_sock
tcp_openreq_alloc    -> reqsk_alloc
tcp_openreq_free     -> reqsk_free
tcp_openreq_fastfree -> __reqsk_free

With this most of the infrastructure closely resembles a struct
sock methods subset.

Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/linux/ip.h

@@ -109,7 +109,7 @@ struct ip_options {
 #define optlength(opt) (sizeof(struct ip_options) + opt->optlen)
 
 struct inet_request_sock {
-	struct open_request	req;
+	struct request_sock	req;
 	u32			loc_addr;
 	u32			rmt_addr;
 	u16			rmt_port;
@@ -123,7 +123,7 @@ struct inet_request_sock {
 	struct ip_options	*opt;
 };
 
-static inline struct inet_request_sock *inet_rsk(const struct open_request *sk)
+static inline struct inet_request_sock *inet_rsk(const struct request_sock *sk)
 {
 	return (struct inet_request_sock *)sk;
 }

include/linux/ipv6.h

@@ -201,7 +201,7 @@ struct tcp6_request_sock {
 	int			iif;
 };
 
-static inline struct tcp6_request_sock *tcp6_rsk(const struct open_request *sk)
+static inline struct tcp6_request_sock *tcp6_rsk(const struct request_sock *sk)
 {
 	return (struct tcp6_request_sock *)sk;
 }

include/linux/tcp.h

@@ -236,7 +236,7 @@ struct tcp_request_sock {
 	__u32			 snt_isn;
 };
 
-static inline struct tcp_request_sock *tcp_rsk(const struct open_request *req)
+static inline struct tcp_request_sock *tcp_rsk(const struct request_sock *req)
 {
 	return (struct tcp_request_sock *)req;
 }
@@ -393,8 +393,8 @@ struct tcp_sock {
 	struct tcp_listen_opt	*listen_opt;
 
 	/* FIFO of established children */
-	struct open_request	*accept_queue;
-	struct open_request	*accept_queue_tail;
+	struct request_sock	*accept_queue;
+	struct request_sock	*accept_queue_tail;
 
 	unsigned int		keepalive_time;	  /* time before keep alive takes place */
 	unsigned int		keepalive_intvl;  /* time interval between keep alive probes */

include/net/request_sock.h

@@ -19,28 +19,28 @@
 #include <linux/types.h>
 #include <net/sock.h>
 
-struct open_request;
+struct request_sock;
 struct sk_buff;
 struct dst_entry;
 struct proto;
 
-struct or_calltable {
+struct request_sock_ops {
 	int		family;
 	kmem_cache_t	*slab;
 	int		obj_size;
 	int		(*rtx_syn_ack)(struct sock *sk,
-				       struct open_request *req,
+				       struct request_sock *req,
 				       struct dst_entry *dst);
 	void		(*send_ack)(struct sk_buff *skb,
-				    struct open_request *req);
+				    struct request_sock *req);
 	void		(*send_reset)(struct sk_buff *skb);
-	void		(*destructor)(struct open_request *req);
+	void		(*destructor)(struct request_sock *req);
 };
 
-/* struct open_request - mini sock to represent a connection request
+/* struct request_sock - mini sock to represent a connection request
  */
-struct open_request {
-	struct open_request		*dl_next; /* Must be first member! */
+struct request_sock {
+	struct request_sock		*dl_next; /* Must be first member! */
 	u16				mss;
 	u8				retrans;
 	u8				__pad;
@@ -49,29 +49,29 @@ struct open_request {
 	u32				rcv_wnd;	  /* rcv_wnd offered first time */
 	u32				ts_recent;
 	unsigned long			expires;
-	struct or_calltable		*class;
+	struct request_sock_ops		*rsk_ops;
 	struct sock			*sk;
 };
 
-static inline struct open_request *tcp_openreq_alloc(struct or_calltable *class)
+static inline struct request_sock *reqsk_alloc(struct request_sock_ops *ops)
 {
-	struct open_request *req = kmem_cache_alloc(class->slab, SLAB_ATOMIC);
+	struct request_sock *req = kmem_cache_alloc(ops->slab, SLAB_ATOMIC);
 
 	if (req != NULL)
-		req->class = class;
+		req->rsk_ops = ops;
 
 	return req;
 }
 
-static inline void tcp_openreq_fastfree(struct open_request *req)
+static inline void __reqsk_free(struct request_sock *req)
 {
-	kmem_cache_free(req->class->slab, req);
+	kmem_cache_free(req->rsk_ops->slab, req);
 }
 
-static inline void tcp_openreq_free(struct open_request *req)
+static inline void reqsk_free(struct request_sock *req)
 {
-	req->class->destructor(req);
-	tcp_openreq_fastfree(req);
+	req->rsk_ops->destructor(req);
+	__reqsk_free(req);
 }
 
 #endif /* _REQUEST_SOCK_H */

include/net/sock.h

@@ -484,7 +484,7 @@ extern void sk_stream_kill_queues(struct sock *sk);
 
 extern int sk_wait_data(struct sock *sk, long *timeo);
 
-struct or_calltable;
+struct request_sock_ops;
 
 /* Networking protocol blocks we attach to sockets.
  * socket layer -> transport layer interface
@@ -549,7 +549,7 @@ struct proto {
 	kmem_cache_t		*slab;
 	unsigned int		obj_size;
 
-	struct or_calltable	*rsk_prot;
+	struct request_sock_ops	*rsk_prot;
 
 	struct module		*owner;
 

include/net/tcp.h

@@ -641,7 +641,7 @@ struct tcp_func {
 
 	struct sock *		(*syn_recv_sock)	(struct sock *sk,
 							 struct sk_buff *skb,
-							 struct open_request *req,
+							 struct request_sock *req,
 							 struct dst_entry *dst);
     
 	int			(*remember_stamp)	(struct sock *sk);
@@ -785,8 +785,8 @@ extern enum tcp_tw_status	tcp_timewait_state_process(struct tcp_tw_bucket *tw,
 							   unsigned len);
 
 extern struct sock *		tcp_check_req(struct sock *sk,struct sk_buff *skb,
-					      struct open_request *req,
-					      struct open_request **prev);
+					      struct request_sock *req,
+					      struct request_sock **prev);
 extern int			tcp_child_process(struct sock *parent,
 						  struct sock *child,
 						  struct sk_buff *skb);
@@ -836,12 +836,12 @@ extern int			tcp_v4_conn_request(struct sock *sk,
 						    struct sk_buff *skb);
 
 extern struct sock *		tcp_create_openreq_child(struct sock *sk,
-							 struct open_request *req,
+							 struct request_sock *req,
 							 struct sk_buff *skb);
 
 extern struct sock *		tcp_v4_syn_recv_sock(struct sock *sk,
 						     struct sk_buff *skb,
-						     struct open_request *req,
+						     struct request_sock *req,
 							struct dst_entry *dst);
 
 extern int			tcp_v4_do_rcv(struct sock *sk,
@@ -855,7 +855,7 @@ extern int			tcp_connect(struct sock *sk);
 
 extern struct sk_buff *		tcp_make_synack(struct sock *sk,
 						struct dst_entry *dst,
-						struct open_request *req);
+						struct request_sock *req);
 
 extern int			tcp_disconnect(struct sock *sk, int flags);
 
@@ -1683,7 +1683,7 @@ static inline int tcp_full_space(const struct sock *sk)
 	return tcp_win_from_space(sk->sk_rcvbuf); 
 }
 
-static inline void tcp_acceptq_queue(struct sock *sk, struct open_request *req,
+static inline void tcp_acceptq_queue(struct sock *sk, struct request_sock *req,
 					 struct sock *child)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
@@ -1707,11 +1707,11 @@ struct tcp_listen_opt
 	int			qlen_young;
 	int			clock_hand;
 	u32			hash_rnd;
-	struct open_request	*syn_table[TCP_SYNQ_HSIZE];
+	struct request_sock	*syn_table[TCP_SYNQ_HSIZE];
 };
 
 static inline void
-tcp_synq_removed(struct sock *sk, struct open_request *req)
+tcp_synq_removed(struct sock *sk, struct request_sock *req)
 {
 	struct tcp_listen_opt *lopt = tcp_sk(sk)->listen_opt;
 
@@ -1745,23 +1745,23 @@ static inline int tcp_synq_is_full(struct sock *sk)
 	return tcp_synq_len(sk) >> tcp_sk(sk)->listen_opt->max_qlen_log;
 }
 
-static inline void tcp_synq_unlink(struct tcp_sock *tp, struct open_request *req,
-				       struct open_request **prev)
+static inline void tcp_synq_unlink(struct tcp_sock *tp, struct request_sock *req,
+				       struct request_sock **prev)
 {
 	write_lock(&tp->syn_wait_lock);
 	*prev = req->dl_next;
 	write_unlock(&tp->syn_wait_lock);
 }
 
-static inline void tcp_synq_drop(struct sock *sk, struct open_request *req,
-				     struct open_request **prev)
+static inline void tcp_synq_drop(struct sock *sk, struct request_sock *req,
+				     struct request_sock **prev)
 {
 	tcp_synq_unlink(tcp_sk(sk), req, prev);
 	tcp_synq_removed(sk, req);
-	tcp_openreq_free(req);
+	reqsk_free(req);
 }
 
-static __inline__ void tcp_openreq_init(struct open_request *req,
+static __inline__ void tcp_openreq_init(struct request_sock *req,
 					struct tcp_options_received *rx_opt,
 					struct sk_buff *skb)
 {

include/net/tcp_ecn.h

@@ -39,7 +39,7 @@ static inline void TCP_ECN_send_syn(struct sock *sk, struct tcp_sock *tp,
 }
 
 static __inline__ void
-TCP_ECN_make_synack(struct open_request *req, struct tcphdr *th)
+TCP_ECN_make_synack(struct request_sock *req, struct tcphdr *th)
 {
 	if (inet_rsk(req)->ecn_ok)
 		th->ece = 1;
@@ -112,13 +112,13 @@ static inline int TCP_ECN_rcv_ecn_echo(struct tcp_sock *tp, struct tcphdr *th)
 }
 
 static inline void TCP_ECN_openreq_child(struct tcp_sock *tp,
-					 struct open_request *req)
+					 struct request_sock *req)
 {
 	tp->ecn_flags = inet_rsk(req)->ecn_ok ? TCP_ECN_OK : 0;
 }
 
 static __inline__ void
-TCP_ECN_create_request(struct open_request *req, struct tcphdr *th)
+TCP_ECN_create_request(struct request_sock *req, struct tcphdr *th)
 {
 	if (sysctl_tcp_ecn && th->ece && th->cwr)
 		inet_rsk(req)->ecn_ok = 1;

net/ipv4/syncookies.c

@@ -169,10 +169,10 @@ static inline int cookie_check(struct sk_buff *skb, __u32 cookie)
 	return mssind < NUM_MSS ? msstab[mssind] + 1 : 0;
 }
 
-extern struct or_calltable or_ipv4;
+extern struct request_sock_ops tcp_request_sock_ops;
 
 static inline struct sock *get_cookie_sock(struct sock *sk, struct sk_buff *skb,
-					   struct open_request *req,
+					   struct request_sock *req,
 					   struct dst_entry *dst)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
@@ -182,7 +182,7 @@ static inline struct sock *get_cookie_sock(struct sock *sk, struct sk_buff *skb,
 	if (child)
 		tcp_acceptq_queue(sk, req, child);
 	else
-		tcp_openreq_free(req);
+		reqsk_free(req);
 
 	return child;
 }
@@ -195,7 +195,7 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
 	struct tcp_sock *tp = tcp_sk(sk);
 	__u32 cookie = ntohl(skb->h.th->ack_seq) - 1; 
 	struct sock *ret = sk;
-	struct open_request *req; 
+	struct request_sock *req; 
 	int mss; 
 	struct rtable *rt; 
 	__u8 rcv_wscale;
@@ -212,7 +212,7 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
 	NET_INC_STATS_BH(LINUX_MIB_SYNCOOKIESRECV);
 
 	ret = NULL;
-	req = tcp_openreq_alloc(&or_ipv4); /* for safety */
+	req = reqsk_alloc(&tcp_request_sock_ops); /* for safety */
 	if (!req)
 		goto out;
 
@@ -262,7 +262,7 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
 					       { .sport = skb->h.th->dest,
 						 .dport = skb->h.th->source } } };
 		if (ip_route_output_key(&rt, &fl)) {
-			tcp_openreq_free(req);
+			reqsk_free(req);
 			goto out; 
 		}
 	}

net/ipv4/tcp.c

@@ -516,8 +516,8 @@ static void tcp_listen_stop (struct sock *sk)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 	struct tcp_listen_opt *lopt = tp->listen_opt;
-	struct open_request *acc_req = tp->accept_queue;
-	struct open_request *req;
+	struct request_sock *acc_req = tp->accept_queue;
+	struct request_sock *req;
 	int i;
 
 	tcp_delete_keepalive_timer(sk);
@@ -533,7 +533,7 @@ static void tcp_listen_stop (struct sock *sk)
 			while ((req = lopt->syn_table[i]) != NULL) {
 				lopt->syn_table[i] = req->dl_next;
 				lopt->qlen--;
-				tcp_openreq_free(req);
+				reqsk_free(req);
 
 		/* Following specs, it would be better either to send FIN
 		 * (and enter FIN-WAIT-1, it is normal close)
@@ -573,7 +573,7 @@ static void tcp_listen_stop (struct sock *sk)
 		sock_put(child);
 
 		sk_acceptq_removed(sk);
-		tcp_openreq_fastfree(req);
+		__reqsk_free(req);
 	}
 	BUG_TRAP(!sk->sk_ack_backlog);
 }
@@ -1894,7 +1894,7 @@ static int wait_for_connect(struct sock *sk, long timeo)
 struct sock *tcp_accept(struct sock *sk, int flags, int *err)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
-	struct open_request *req;
+	struct request_sock *req;
 	struct sock *newsk;
 	int error;
 
@@ -1927,7 +1927,7 @@ struct sock *tcp_accept(struct sock *sk, int flags, int *err)
 
  	newsk = req->sk;
 	sk_acceptq_removed(sk);
-	tcp_openreq_fastfree(req);
+	__reqsk_free(req);
 	BUG_TRAP(newsk->sk_state != TCP_SYN_RECV);
 	release_sock(sk);
 	return newsk;

net/ipv4/tcp_diag.c

@@ -455,7 +455,7 @@ static int tcpdiag_dump_sock(struct sk_buff *skb, struct sock *sk,
 }
 
 static int tcpdiag_fill_req(struct sk_buff *skb, struct sock *sk,
-			    struct open_request *req,
+			    struct request_sock *req,
 			    u32 pid, u32 seq)
 {
 	const struct inet_request_sock *ireq = inet_rsk(req);
@@ -542,7 +542,7 @@ static int tcpdiag_dump_reqs(struct sk_buff *skb, struct sock *sk,
 	}
 
 	for (j = s_j; j < TCP_SYNQ_HSIZE; j++) {
-		struct open_request *req, *head = lopt->syn_table[j];
+		struct request_sock *req, *head = lopt->syn_table[j];
 
 		reqnum = 0;
 		for (req = head; req; reqnum++, req = req->dl_next) {

net/ipv4/tcp_ipv4.c

@@ -36,7 +36,7 @@
  *					ACK bit.
  *		Andi Kleen :		Implemented fast path mtu discovery.
  *	     				Fixed many serious bugs in the
- *					open_request handling and moved
+ *					request_sock handling and moved
  *					most of it into the af independent code.
  *					Added tail drop and some other bugfixes.
  *					Added new listen sematics.
@@ -869,13 +869,13 @@ static __inline__ u32 tcp_v4_synq_hash(u32 raddr, u16 rport, u32 rnd)
 	return (jhash_2words(raddr, (u32) rport, rnd) & (TCP_SYNQ_HSIZE - 1));
 }
 
-static struct open_request *tcp_v4_search_req(struct tcp_sock *tp,
-					      struct open_request ***prevp,
+static struct request_sock *tcp_v4_search_req(struct tcp_sock *tp,
+					      struct request_sock ***prevp,
 					      __u16 rport,
 					      __u32 raddr, __u32 laddr)
 {
 	struct tcp_listen_opt *lopt = tp->listen_opt;
-	struct open_request *req, **prev;
+	struct request_sock *req, **prev;
 
 	for (prev = &lopt->syn_table[tcp_v4_synq_hash(raddr, rport, lopt->hash_rnd)];
 	     (req = *prev) != NULL;
@@ -885,7 +885,7 @@ static struct open_request *tcp_v4_search_req(struct tcp_sock *tp,
 		if (ireq->rmt_port == rport &&
 		    ireq->rmt_addr == raddr &&
 		    ireq->loc_addr == laddr &&
-		    TCP_INET_FAMILY(req->class->family)) {
+		    TCP_INET_FAMILY(req->rsk_ops->family)) {
 			BUG_TRAP(!req->sk);
 			*prevp = prev;
 			break;
@@ -895,7 +895,7 @@ static struct open_request *tcp_v4_search_req(struct tcp_sock *tp,
 	return req;
 }
 
-static void tcp_v4_synq_add(struct sock *sk, struct open_request *req)
+static void tcp_v4_synq_add(struct sock *sk, struct request_sock *req)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 	struct tcp_listen_opt *lopt = tp->listen_opt;
@@ -1052,7 +1052,7 @@ void tcp_v4_err(struct sk_buff *skb, u32 info)
 	}
 
 	switch (sk->sk_state) {
-		struct open_request *req, **prev;
+		struct request_sock *req, **prev;
 	case TCP_LISTEN:
 		if (sock_owned_by_user(sk))
 			goto out;
@@ -1256,14 +1256,14 @@ static void tcp_v4_timewait_ack(struct sock *sk, struct sk_buff *skb)
 	tcp_tw_put(tw);
 }
 
-static void tcp_v4_or_send_ack(struct sk_buff *skb, struct open_request *req)
+static void tcp_v4_reqsk_send_ack(struct sk_buff *skb, struct request_sock *req)
 {
 	tcp_v4_send_ack(skb, tcp_rsk(req)->snt_isn + 1, tcp_rsk(req)->rcv_isn + 1, req->rcv_wnd,
 			req->ts_recent);
 }
 
 static struct dst_entry* tcp_v4_route_req(struct sock *sk,
-					  struct open_request *req)
+					  struct request_sock *req)
 {
 	struct rtable *rt;
 	const struct inet_request_sock *ireq = inet_rsk(req);
@@ -1294,10 +1294,10 @@ static struct dst_entry* tcp_v4_route_req(struct sock *sk,
 
 /*
  *	Send a SYN-ACK after having received an ACK.
- *	This still operates on a open_request only, not on a big
+ *	This still operates on a request_sock only, not on a big
  *	socket.
  */
-static int tcp_v4_send_synack(struct sock *sk, struct open_request *req,
+static int tcp_v4_send_synack(struct sock *sk, struct request_sock *req,
 			      struct dst_entry *dst)
 {
 	const struct inet_request_sock *ireq = inet_rsk(req);
@@ -1332,9 +1332,9 @@ out:
 }
 
 /*
- *	IPv4 open_request destructor.
+ *	IPv4 request_sock destructor.
  */
-static void tcp_v4_or_free(struct open_request *req)
+static void tcp_v4_reqsk_destructor(struct request_sock *req)
 {
 	if (inet_rsk(req)->opt)
 		kfree(inet_rsk(req)->opt);
@@ -1353,7 +1353,7 @@ static inline void syn_flood_warning(struct sk_buff *skb)
 }
 
 /*
- * Save and compile IPv4 options into the open_request if needed.
+ * Save and compile IPv4 options into the request_sock if needed.
  */
 static inline struct ip_options *tcp_v4_save_options(struct sock *sk,
 						     struct sk_buff *skb)
@@ -1389,12 +1389,12 @@ static inline struct ip_options *tcp_v4_save_options(struct sock *sk,
  */
 int sysctl_max_syn_backlog = 256;
 
-struct or_calltable or_ipv4 = {
+struct request_sock_ops tcp_request_sock_ops = {
 	.family		=	PF_INET,
 	.obj_size	=	sizeof(struct tcp_request_sock),
 	.rtx_syn_ack	=	tcp_v4_send_synack,
-	.send_ack	=	tcp_v4_or_send_ack,
-	.destructor	=	tcp_v4_or_free,
+	.send_ack	=	tcp_v4_reqsk_send_ack,
+	.destructor	=	tcp_v4_reqsk_destructor,
 	.send_reset	=	tcp_v4_send_reset,
 };
 
@@ -1402,7 +1402,7 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
 {
 	struct inet_request_sock *ireq;
 	struct tcp_options_received tmp_opt;
-	struct open_request *req;
+	struct request_sock *req;
 	__u32 saddr = skb->nh.iph->saddr;
 	__u32 daddr = skb->nh.iph->daddr;
 	__u32 isn = TCP_SKB_CB(skb)->when;
@@ -1439,7 +1439,7 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
 	if (sk_acceptq_is_full(sk) && tcp_synq_young(sk) > 1)
 		goto drop;
 
-	req = tcp_openreq_alloc(&or_ipv4);
+	req = reqsk_alloc(&tcp_request_sock_ops);
 	if (!req)
 		goto drop;
 
@@ -1535,14 +1535,14 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
 		goto drop_and_free;
 
 	if (want_cookie) {
-	   	tcp_openreq_free(req);
+	   	reqsk_free(req);
 	} else {
 		tcp_v4_synq_add(sk, req);
 	}
 	return 0;
 
 drop_and_free:
-	tcp_openreq_free(req);
+	reqsk_free(req);
 drop:
 	TCP_INC_STATS_BH(TCP_MIB_ATTEMPTFAILS);
 	return 0;
@@ -1554,7 +1554,7 @@ drop:
  * now create the new socket.
  */
 struct sock *tcp_v4_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
-				  struct open_request *req,
+				  struct request_sock *req,
 				  struct dst_entry *dst)
 {
 	struct inet_request_sock *ireq;
@@ -1613,9 +1613,9 @@ static struct sock *tcp_v4_hnd_req(struct sock *sk, struct sk_buff *skb)
 	struct iphdr *iph = skb->nh.iph;
 	struct tcp_sock *tp = tcp_sk(sk);
 	struct sock *nsk;
-	struct open_request **prev;
+	struct request_sock **prev;
 	/* Find possible connection requests. */
-	struct open_request *req = tcp_v4_search_req(tp, &prev, th->source,
+	struct request_sock *req = tcp_v4_search_req(tp, &prev, th->source,
 						     iph->saddr, iph->daddr);
 	if (req)
 		return tcp_check_req(sk, skb, req, prev);
@@ -2152,13 +2152,13 @@ static void *listening_get_next(struct seq_file *seq, void *cur)
 	++st->num;
 
 	if (st->state == TCP_SEQ_STATE_OPENREQ) {
-		struct open_request *req = cur;
+		struct request_sock *req = cur;
 
 	       	tp = tcp_sk(st->syn_wait_sk);
 		req = req->dl_next;
 		while (1) {
 			while (req) {
-				if (req->class->family == st->family) {
+				if (req->rsk_ops->family == st->family) {
 					cur = req;
 					goto out;
 				}
@@ -2459,7 +2459,7 @@ void tcp_proc_unregister(struct tcp_seq_afinfo *afinfo)
 	memset(afinfo->seq_fops, 0, sizeof(*afinfo->seq_fops)); 
 }
 
-static void get_openreq4(struct sock *sk, struct open_request *req,
+static void get_openreq4(struct sock *sk, struct request_sock *req,
 			 char *tmpbuf, int i, int uid)
 {
 	const struct inet_request_sock *ireq = inet_rsk(req);
@@ -2627,7 +2627,7 @@ struct proto tcp_prot = {
 	.sysctl_rmem		= sysctl_tcp_rmem,
 	.max_header		= MAX_TCP_HEADER,
 	.obj_size		= sizeof(struct tcp_sock),
-	.rsk_prot		= &or_ipv4,
+	.rsk_prot		= &tcp_request_sock_ops,
 };
 
 

net/ipv4/tcp_minisocks.c

@@ -684,7 +684,7 @@ out:
  * Actually, we could lots of memory writes here. tp of listening
  * socket contains all necessary default parameters.
  */
-struct sock *tcp_create_openreq_child(struct sock *sk, struct open_request *req, struct sk_buff *skb)
+struct sock *tcp_create_openreq_child(struct sock *sk, struct request_sock *req, struct sk_buff *skb)
 {
 	/* allocate the newsk from the same slab of the master sock,
 	 * if not, at sk_free time we'll try to free it from the wrong
@@ -853,12 +853,12 @@ struct sock *tcp_create_openreq_child(struct sock *sk, struct open_request *req,
 
 /* 
  *	Process an incoming packet for SYN_RECV sockets represented
- *	as an open_request.
+ *	as a request_sock.
  */
 
 struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
-			   struct open_request *req,
-			   struct open_request **prev)
+			   struct request_sock *req,
+			   struct request_sock **prev)
 {
 	struct tcphdr *th = skb->h.th;
 	struct tcp_sock *tp = tcp_sk(sk);
@@ -903,7 +903,7 @@ struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
 		 * Enforce "SYN-ACK" according to figure 8, figure 6
 		 * of RFC793, fixed by RFC1122.
 		 */
-		req->class->rtx_syn_ack(sk, req, NULL);
+		req->rsk_ops->rtx_syn_ack(sk, req, NULL);
 		return NULL;
 	}
 
@@ -975,7 +975,7 @@ struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
 					  tcp_rsk(req)->rcv_isn + 1, tcp_rsk(req)->rcv_isn + 1 + req->rcv_wnd)) {
 		/* Out of window: send ACK and drop. */
 		if (!(flg & TCP_FLAG_RST))
-			req->class->send_ack(skb, req);
+			req->rsk_ops->send_ack(skb, req);
 		if (paws_reject)
 			NET_INC_STATS_BH(LINUX_MIB_PAWSESTABREJECTED);
 		return NULL;
@@ -1035,7 +1035,7 @@ struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
 	embryonic_reset:
 		NET_INC_STATS_BH(LINUX_MIB_EMBRYONICRSTS);
 		if (!(flg & TCP_FLAG_RST))
-			req->class->send_reset(skb);
+			req->rsk_ops->send_reset(skb);
 
 		tcp_synq_drop(sk, req, prev);
 		return NULL;

net/ipv4/tcp_output.c

@@ -1356,7 +1356,7 @@ int tcp_send_synack(struct sock *sk)
  * Prepare a SYN-ACK.
  */
 struct sk_buff * tcp_make_synack(struct sock *sk, struct dst_entry *dst,
-				 struct open_request *req)
+				 struct request_sock *req)
 {
 	struct inet_request_sock *ireq = inet_rsk(req);
 	struct tcp_sock *tp = tcp_sk(sk);

net/ipv4/tcp_timer.c

@@ -468,7 +468,7 @@ static void tcp_synack_timer(struct sock *sk)
 	int max_retries = tp->syn_retries ? : sysctl_tcp_synack_retries;
 	int thresh = max_retries;
 	unsigned long now = jiffies;
-	struct open_request **reqp, *req;
+	struct request_sock **reqp, *req;
 	int i, budget;
 
 	if (lopt == NULL || lopt->qlen == 0)
@@ -514,7 +514,7 @@ static void tcp_synack_timer(struct sock *sk)
 			if (time_after_eq(now, req->expires)) {
 				if ((req->retrans < thresh ||
 				     (inet_rsk(req)->acked && req->retrans < max_retries))
-				    && !req->class->rtx_syn_ack(sk, req, NULL)) {
+				    && !req->rsk_ops->rtx_syn_ack(sk, req, NULL)) {
 					unsigned long timeo;
 
 					if (req->retrans++ == 0)
@@ -533,7 +533,7 @@ static void tcp_synack_timer(struct sock *sk)
 				lopt->qlen--;
 				if (req->retrans == 0)
 					lopt->qlen_young--;
-				tcp_openreq_free(req);
+				reqsk_free(req);
 				continue;
 			}
 			reqp = &req->dl_next;

net/ipv6/tcp_ipv6.c

@@ -65,7 +65,7 @@
 #include <linux/seq_file.h>
 
 static void	tcp_v6_send_reset(struct sk_buff *skb);
-static void	tcp_v6_or_send_ack(struct sk_buff *skb, struct open_request *req);
+static void	tcp_v6_reqsk_send_ack(struct sk_buff *skb, struct request_sock *req);
 static void	tcp_v6_send_check(struct sock *sk, struct tcphdr *th, int len, 
 				  struct sk_buff *skb);
 
@@ -394,15 +394,15 @@ static u32 tcp_v6_synq_hash(struct in6_addr *raddr, u16 rport, u32 rnd)
 	return c & (TCP_SYNQ_HSIZE - 1);
 }
 
-static struct open_request *tcp_v6_search_req(struct tcp_sock *tp,
-					      struct open_request ***prevp,
+static struct request_sock *tcp_v6_search_req(struct tcp_sock *tp,
+					      struct request_sock ***prevp,
 					      __u16 rport,
 					      struct in6_addr *raddr,
 					      struct in6_addr *laddr,
 					      int iif)
 {
 	struct tcp_listen_opt *lopt = tp->listen_opt;
-	struct open_request *req, **prev;  
+	struct request_sock *req, **prev;  
 
 	for (prev = &lopt->syn_table[tcp_v6_synq_hash(raddr, rport, lopt->hash_rnd)];
 	     (req = *prev) != NULL;
@@ -410,7 +410,7 @@ static struct open_request *tcp_v6_search_req(struct tcp_sock *tp,
 		const struct tcp6_request_sock *treq = tcp6_rsk(req);
 
 		if (inet_rsk(req)->rmt_port == rport &&
-		    req->class->family == AF_INET6 &&
+		    req->rsk_ops->family == AF_INET6 &&
 		    ipv6_addr_equal(&treq->rmt_addr, raddr) &&
 		    ipv6_addr_equal(&treq->loc_addr, laddr) &&
 		    (!treq->iif || treq->iif == iif)) {
@@ -908,9 +908,9 @@ static void tcp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 
 	icmpv6_err_convert(type, code, &err);
 
-	/* Might be for an open_request */
+	/* Might be for an request_sock */
 	switch (sk->sk_state) {
-		struct open_request *req, **prev;
+		struct request_sock *req, **prev;
 	case TCP_LISTEN:
 		if (sock_owned_by_user(sk))
 			goto out;
@@ -959,7 +959,7 @@ out:
 }
 
 
-static int tcp_v6_send_synack(struct sock *sk, struct open_request *req,
+static int tcp_v6_send_synack(struct sock *sk, struct request_sock *req,
 			      struct dst_entry *dst)
 {
 	struct tcp6_request_sock *treq = tcp6_rsk(req);
@@ -1027,18 +1027,18 @@ done:
 	return err;
 }
 
-static void tcp_v6_or_free(struct open_request *req)
+static void tcp_v6_reqsk_destructor(struct request_sock *req)
 {
 	if (tcp6_rsk(req)->pktopts)
 		kfree_skb(tcp6_rsk(req)->pktopts);
 }
 
-static struct or_calltable or_ipv6 = {
+static struct request_sock_ops tcp6_request_sock_ops = {
 	.family		=	AF_INET6,
 	.obj_size	=	sizeof(struct tcp6_request_sock),
 	.rtx_syn_ack	=	tcp_v6_send_synack,
-	.send_ack	=	tcp_v6_or_send_ack,
-	.destructor	=	tcp_v6_or_free,
+	.send_ack	=	tcp_v6_reqsk_send_ack,
+	.destructor	=	tcp_v6_reqsk_destructor,
 	.send_reset	=	tcp_v6_send_reset
 };
 
@@ -1223,7 +1223,7 @@ static void tcp_v6_timewait_ack(struct sock *sk, struct sk_buff *skb)
 	tcp_tw_put(tw);
 }
 
-static void tcp_v6_or_send_ack(struct sk_buff *skb, struct open_request *req)
+static void tcp_v6_reqsk_send_ack(struct sk_buff *skb, struct request_sock *req)
 {
 	tcp_v6_send_ack(skb, tcp_rsk(req)->snt_isn + 1, tcp_rsk(req)->rcv_isn + 1, req->rcv_wnd, req->ts_recent);
 }
@@ -1231,7 +1231,7 @@ static void tcp_v6_or_send_ack(struct sk_buff *skb, struct open_request *req)
 
 static struct sock *tcp_v6_hnd_req(struct sock *sk,struct sk_buff *skb)
 {
-	struct open_request *req, **prev;
+	struct request_sock *req, **prev;
 	struct tcphdr *th = skb->h.th;
 	struct tcp_sock *tp = tcp_sk(sk);
 	struct sock *nsk;
@@ -1264,7 +1264,7 @@ static struct sock *tcp_v6_hnd_req(struct sock *sk,struct sk_buff *skb)
 	return sk;
 }
 
-static void tcp_v6_synq_add(struct sock *sk, struct open_request *req)
+static void tcp_v6_synq_add(struct sock *sk, struct request_sock *req)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 	struct tcp_listen_opt *lopt = tp->listen_opt;
@@ -1292,7 +1292,7 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
 	struct ipv6_pinfo *np = inet6_sk(sk);
 	struct tcp_options_received tmp_opt;
 	struct tcp_sock *tp = tcp_sk(sk);
-	struct open_request *req = NULL;
+	struct request_sock *req = NULL;
 	__u32 isn = TCP_SKB_CB(skb)->when;
 
 	if (skb->protocol == htons(ETH_P_IP))
@@ -1313,7 +1313,7 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
 	if (sk_acceptq_is_full(sk) && tcp_synq_young(sk) > 1)
 		goto drop;
 
-	req = tcp_openreq_alloc(&or_ipv6);
+	req = reqsk_alloc(&tcp6_request_sock_ops);
 	if (req == NULL)
 		goto drop;
 
@@ -1358,14 +1358,14 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
 
 drop:
 	if (req)
-		tcp_openreq_free(req);
+		reqsk_free(req);
 
 	TCP_INC_STATS_BH(TCP_MIB_ATTEMPTFAILS);
 	return 0; /* don't send reset */
 }
 
 static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
-					  struct open_request *req,
+					  struct request_sock *req,
 					  struct dst_entry *dst)
 {
 	struct tcp6_request_sock *treq = tcp6_rsk(req);
@@ -2055,7 +2055,7 @@ static int tcp_v6_destroy_sock(struct sock *sk)
 
 /* Proc filesystem TCPv6 sock list dumping. */
 static void get_openreq6(struct seq_file *seq, 
-			 struct sock *sk, struct open_request *req, int i, int uid)
+			 struct sock *sk, struct request_sock *req, int i, int uid)
 {
 	struct in6_addr *dest, *src;
 	int ttd = req->expires - jiffies;
@@ -2244,7 +2244,7 @@ struct proto tcpv6_prot = {
 	.sysctl_rmem		= sysctl_tcp_rmem,
 	.max_header		= MAX_TCP_HEADER,
 	.obj_size		= sizeof(struct tcp6_sock),
-	.rsk_prot		= &or_ipv6,
+	.rsk_prot		= &tcp6_request_sock_ops,
 };
 
 static struct inet6_protocol tcpv6_protocol = {