The long-awaited mega-massive-network-code- cleanup. Part I.

This commit includes the following changes:
1) Old-style (pr_usrreq()) protocols are no longer supported, the compatibility
glue for them is deleted, and the kernel will panic on boot if any are compiled
in.

2) Certain protocol entry points are modified to take a process structure,
so they they can easily tell whether or not it is possible to sleep, and
also to access credentials.

3) SS_PRIV is no more, and with it goes the SO_PRIVSTATE setsockopt()
call.  Protocols should use the process pointer they are now passed.

4) The PF_LOCAL and PF_ROUTE families have been updated to use the new
style, as has the `raw' skeleton family.

5) PF_LOCAL sockets now obey the process's umask when creating a socket
in the filesystem.

As a result, LINT is now broken.  I'm hoping that some enterprising hacker
with a bit more time will either make the broken bits work (should be
easy for netipx) or dike them out.

1 files changed, 25 insertions, 21 deletions

diff --git a/sys/netinet/tcp_usrreq.c b/sys/netinet/tcp_usrreq.c
index fbed6af..6946c08 100644
--- a/sys/netinet/tcp_usrreq.c
+++ b/sys/netinet/tcp_usrreq.c
@@ -31,7 +31,7 @@
  * SUCH DAMAGE.
  *
  *	From: @(#)tcp_usrreq.c	8.2 (Berkeley) 1/3/94
- *	$Id$
+ *	$Id: tcp_usrreq.c,v 1.30 1997/02/21 16:30:31 wollman Exp $
  */
 
 #include <sys/param.h>
@@ -71,8 +71,9 @@
  */
 extern	char *tcpstates[];	/* XXX ??? */
 
-static int	tcp_attach __P((struct socket *));
-static int	tcp_connect __P((struct tcpcb *, struct mbuf *));
+static int	tcp_attach __P((struct socket *, struct proc *));
+static int	tcp_connect __P((struct tcpcb *, struct mbuf *, 
+				 struct proc *));
 static struct tcpcb *
 		tcp_disconnect __P((struct tcpcb *));
 static struct tcpcb *
@@ -94,7 +95,7 @@ static struct tcpcb *
  * and an internet control block.
  */
 static int
-tcp_usr_attach(struct socket *so, int proto)
+tcp_usr_attach(struct socket *so, int proto, struct proc *p)
 {
 	int s = splnet();
 	int error;
@@ -108,7 +109,7 @@ tcp_usr_attach(struct socket *so, int proto)
 		goto out;
 	}
 
-	error = tcp_attach(so);
+	error = tcp_attach(so, p);
 	if (error)
 		goto out;
 
@@ -170,7 +171,7 @@ tcp_usr_detach(struct socket *so)
  * Give the socket an address.
  */
 static int
-tcp_usr_bind(struct socket *so, struct mbuf *nam)
+tcp_usr_bind(struct socket *so, struct mbuf *nam, struct proc *p)
 {
 	int s = splnet();
 	int error = 0;
@@ -190,7 +191,7 @@ tcp_usr_bind(struct socket *so, struct mbuf *nam)
 		error = EAFNOSUPPORT;
 		goto out;
 	}
-	error = in_pcbbind(inp, nam);
+	error = in_pcbbind(inp, nam, p);
 	if (error)
 		goto out;
 	COMMON_END(PRU_BIND);
@@ -201,7 +202,7 @@ tcp_usr_bind(struct socket *so, struct mbuf *nam)
  * Prepare to accept connections.
  */
 static int
-tcp_usr_listen(struct socket *so)
+tcp_usr_listen(struct socket *so, struct proc *p)
 {
 	int s = splnet();
 	int error = 0;
@@ -210,7 +211,7 @@ tcp_usr_listen(struct socket *so)
 
 	COMMON_START();
 	if (inp->inp_lport == 0)
-		error = in_pcbbind(inp, NULL);
+		error = in_pcbbind(inp, (struct mbuf *)0, p);
 	if (error == 0)
 		tp->t_state = TCPS_LISTEN;
 	COMMON_END(PRU_LISTEN);
@@ -224,7 +225,7 @@ tcp_usr_listen(struct socket *so)
  * Send initial segment on connection.
  */
 static int
-tcp_usr_connect(struct socket *so, struct mbuf *nam)
+tcp_usr_connect(struct socket *so, struct mbuf *nam, struct proc *p)
 {
 	int s = splnet();
 	int error = 0;
@@ -244,7 +245,7 @@ tcp_usr_connect(struct socket *so, struct mbuf *nam)
 		goto out;
 	}
 
-	if ((error = tcp_connect(tp, nam)) != 0)
+	if ((error = tcp_connect(tp, nam, p)) != 0)
 		goto out;
 	error = tcp_output(tp);
 	COMMON_END(PRU_CONNECT);
@@ -333,7 +334,7 @@ tcp_usr_rcvd(struct socket *so, int flags)
  */
 static int
 tcp_usr_send(struct socket *so, int flags, struct mbuf *m, struct mbuf *nam,
-	     struct mbuf *control)
+	     struct mbuf *control, struct proc *p)
 {
 	int s = splnet();
 	int error = 0;
@@ -357,7 +358,7 @@ tcp_usr_send(struct socket *so, int flags, struct mbuf *m, struct mbuf *nam,
 			 * initialize maxseg/maxopd using peer's cached
 			 * MSS.
 			 */
-			error = tcp_connect(tp, nam);
+			error = tcp_connect(tp, nam, p);
 			if (error)
 				goto out;
 			tp->snd_wnd = TTCP_CLIENT_SND_WND;
@@ -396,7 +397,7 @@ tcp_usr_send(struct socket *so, int flags, struct mbuf *m, struct mbuf *nam,
 			 * initialize maxseg/maxopd using peer's cached
 			 * MSS.
 			 */
-			error = tcp_connect(tp, nam);
+			error = tcp_connect(tp, nam, p);
 			if (error)
 				goto out;
 			tp->snd_wnd = TTCP_CLIENT_SND_WND;
@@ -463,7 +464,7 @@ struct pr_usrreqs tcp_usrreqs = {
 	tcp_usr_connect, pru_connect2_notsupp, in_control, tcp_usr_detach,
 	tcp_usr_disconnect, tcp_usr_listen, in_setpeeraddr, tcp_usr_rcvd,
 	tcp_usr_rcvoob, tcp_usr_send, pru_sense_null, tcp_usr_shutdown,
-	in_setsockaddr
+	in_setsockaddr, sosend, soreceive, soselect
 };
 
 /*
@@ -477,9 +478,10 @@ struct pr_usrreqs tcp_usrreqs = {
  * Initialize connection parameters and enter SYN-SENT state.
  */
 static int
-tcp_connect(tp, nam)
+tcp_connect(tp, nam, p)
 	register struct tcpcb *tp;
 	struct mbuf *nam;
+	struct proc *p;
 {
 	struct inpcb *inp = tp->t_inpcb, *oinp;
 	struct socket *so = inp->inp_socket;
@@ -491,7 +493,7 @@ tcp_connect(tp, nam)
 	struct rmxp_tao tao_noncached;
 
 	if (inp->inp_lport == 0) {
-		error = in_pcbbind(inp, NULL);
+		error = in_pcbbind(inp, (struct mbuf *)0, p);
 		if (error)
 			return error;
 	}
@@ -564,11 +566,12 @@ tcp_connect(tp, nam)
 }
 
 int
-tcp_ctloutput(op, so, level, optname, mp)
+tcp_ctloutput(op, so, level, optname, mp, p)
 	int op;
 	struct socket *so;
 	int level, optname;
 	struct mbuf **mp;
+	struct proc *p;
 {
 	int error = 0, s;
 	struct inpcb *inp;
@@ -585,7 +588,7 @@ tcp_ctloutput(op, so, level, optname, mp)
 		return (ECONNRESET);
 	}
 	if (level != IPPROTO_TCP) {
-		error = ip_ctloutput(op, so, level, optname, mp);
+		error = ip_ctloutput(op, so, level, optname, mp, p);
 		splx(s);
 		return (error);
 	}
@@ -684,8 +687,9 @@ SYSCTL_INT(_net_inet_tcp, TCPCTL_RECVSPACE, recvspace,
  * bufer space, and entering LISTEN state if to accept connections.
  */
 static int
-tcp_attach(so)
+tcp_attach(so, p)
 	struct socket *so;
+	struct proc *p;
 {
 	register struct tcpcb *tp;
 	struct inpcb *inp;
@@ -696,7 +700,7 @@ tcp_attach(so)
 		if (error)
 			return (error);
 	}
-	error = in_pcballoc(so, &tcbinfo);
+	error = in_pcballoc(so, &tcbinfo, p);
 	if (error)
 		return (error);
 	inp = sotoinpcb(so);