Bring back netns so that Netcon can take over support for it, as agreed.

This was actually easier than I thought - CVS is smart enough to handle
"resurrections" now. :-)

1 files changed, 86 insertions, 0 deletions

diff --git a/sys/netns/ns_pcb.h b/sys/netns/ns_pcb.h
new file mode 100644
index 0000000..3260113
--- /dev/null
+++ b/sys/netns/ns_pcb.h
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 1984, 1985, 1986, 1987, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)ns_pcb.h	8.1 (Berkeley) 6/10/93
+ * $Id: ns_pcb.h,v 1.3 1994/08/21 06:22:09 paul Exp $
+ */
+
+#ifndef _NETNS_NS_PCB_H_
+#define _NETNS_NS_PCB_H_
+
+/*
+ * Ns protocol interface control block.
+ */
+struct nspcb {
+	struct	nspcb *nsp_next;	/* doubly linked list */
+	struct	nspcb *nsp_prev;
+	struct	nspcb *nsp_head;
+	struct	socket *nsp_socket;	/* back pointer to socket */
+	struct	ns_addr nsp_faddr;	/* destination address */
+	struct	ns_addr nsp_laddr;	/* socket's address */
+	caddr_t	nsp_pcb;		/* protocol specific stuff */
+	struct	route nsp_route;	/* routing information */
+	struct	ns_addr nsp_lastdst;	/* validate cached route for dg socks*/
+	long	nsp_notify_param;	/* extra info passed via ns_pcbnotify*/
+	short	nsp_flags;
+	u_char	nsp_dpt;		/* default packet type for idp_output*/
+	u_char	nsp_rpt;		/* last received packet type by
+								idp_input() */
+};
+
+/* possible flags */
+
+#define NSP_IN_ABORT	0x1		/* calling abort through socket */
+#define NSP_RAWIN	0x2		/* show headers on input */
+#define NSP_RAWOUT	0x4		/* show header on output */
+#define NSP_ALL_PACKETS	0x8		/* Turn off higher proto processing */
+
+#define	NS_WILDCARD	1
+
+#define nsp_lport nsp_laddr.x_port
+#define nsp_fport nsp_faddr.x_port
+
+#define	sotonspcb(so)		((struct nspcb *)((so)->so_pcb))
+
+/*
+ * Nominal space allocated to a ns socket.
+ */
+#define	NSSNDQ		2048
+#define	NSRCVQ		2048
+
+
+#ifdef KERNEL
+struct	nspcb nspcb;			/* head of list */
+struct	nspcb *ns_pcblookup();
+#endif
+
+#endif