new: protocol layer to provide you with native mode ATM access.

	you can open raw aal5 and aal0 vcs with this protocol layer.

1 files changed, 133 insertions, 0 deletions

diff --git a/sys/netnatm/natm.h b/sys/netnatm/natm.h
new file mode 100644
index 00000000000..143d1623cc4
--- /dev/null
+++ b/sys/netnatm/natm.h
@@ -0,0 +1,133 @@
+/*	$OpenBSD: natm.h,v 1.1 1996/06/30 21:40:14 chuck Exp $	*/
+
+/*
+ *
+ * Copyright (c) 1996 Charles D. Cranor and Washington University.
+ * 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 Charles D. Cranor and
+ *      Washington University.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ */
+
+/*
+ * natm.h: native mode atm
+ */
+
+
+/*
+ * supported protocols
+ */
+
+#define PROTO_NATMAAL0		1
+#define PROTO_NATMAAL5		2	
+
+/*
+ * sockaddr_natm
+ */
+
+struct sockaddr_natm {
+  u_int8_t	snatm_len;		/* length */
+  u_int8_t	snatm_family;		/* AF_NATM */
+  char		snatm_if[IFNAMSIZ];	/* interface name */
+  u_int16_t	snatm_vci;		/* vci */
+  u_int8_t	snatm_vpi;		/* vpi */
+};
+
+
+#ifdef _KERNEL
+
+/*
+ * natm protocol control block
+ */
+
+struct natmpcb {
+  LIST_ENTRY(natmpcb) pcblist;		/* list pointers */
+  u_int	npcb_inq;			/* # of our pkts in proto q */
+  struct socket	*npcb_socket;		/* backpointer to socket */
+  struct ifnet *npcb_ifp;		/* pointer to hardware */
+  struct in_addr ipaddr;		/* remote IP address, if APCB_IP */
+  u_int16_t npcb_vci;			/* VCI */
+  u_int8_t npcb_vpi;			/* VPI */
+  u_int8_t npcb_flags;			/* flags */
+};
+
+/* flags */
+#define NPCB_FREE	0x01		/* free (not on any list) */
+#define NPCB_CONNECTED	0x02		/* connected */
+#define NPCB_IP		0x04		/* used by IP */
+#define NPCB_DRAIN	0x08		/* destory as soon as inq == 0 */
+#define NPCB_RAW	0x10		/* in 'raw' mode? */
+
+/* flag arg to npcb_free */
+#define NPCB_REMOVE	0		/* remove from global list */
+#define NPCB_DESTROY	1		/* destroy and be free */
+
+/*
+ * NPCB_RAWCC is a hack which applies to connections in 'raw' mode.   it 
+ * is used to override the sbspace() macro when you *really* don't want 
+ * to drop rcv data.   the recv socket buffer size is raised to this value.
+ *
+ * XXX: socket buffering needs to be looked at.
+ */
+
+#define NPCB_RAWCC (1024*1024)		/* 1MB */
+
+LIST_HEAD(npcblist, natmpcb);
+
+/* global data structures */
+
+struct npcblist natm_pcbs;		/* global list of pcbs */
+extern	struct ifqueue natmintrq;	/* natm packet input queue */
+#define	NATM_STAT
+#ifdef NATM_STAT
+extern	u_int natm_sodropcnt,
+		natm_sodropbytes;	/* account of droppage */
+extern	u_int natm_sookcnt,
+		natm_sookbytes;		/* account of ok */
+#endif
+
+/* atm_rawioctl: kernel's version of SIOCRAWATM [for internal use only!] */
+struct atm_rawioctl {
+  struct natmpcb *npcb;
+  int rawvalue;
+}; 
+#define SIOCXRAWATM     _IOWR('a', 125, struct atm_rawioctl)
+
+/* external functions */
+
+/* natm_pcb.c */
+struct	natmpcb *npcb_alloc __P((int));
+void	npcb_free __P((struct natmpcb *, int));
+struct	natmpcb *npcb_add __P((struct natmpcb *, struct ifnet *, int, int));
+
+/* natm.c */
+int	natm_usrreq __P((struct socket *, int, struct mbuf *,
+                             struct mbuf *, struct mbuf *, struct proc *));
+int	natm0_sysctl __P((int *, u_int, void *, size_t *, void *, size_t));
+int	natm5_sysctl __P((int *, u_int, void *, size_t *, void *, size_t));
+void	natmintr __P((void));
+
+#endif