Add new files for HARP3

Host ATM Research Platform (HARP), Network Computing Services, Inc.
This software was developed with the support of the Defense Advanced
Research Projects Agency (DARPA).

1 files changed, 188 insertions, 0 deletions

diff --git a/sys/netatm/spans/spans_cls.h b/sys/netatm/spans/spans_cls.h
new file mode 100644
index 0000000..d2cacac
--- /dev/null
+++ b/sys/netatm/spans/spans_cls.h
@@ -0,0 +1,188 @@
+/*
+ *
+ * ===================================
+ * HARP  |  Host ATM Research Platform
+ * ===================================
+ *
+ *
+ * This Host ATM Research Platform ("HARP") file (the "Software") is
+ * made available by Network Computing Services, Inc. ("NetworkCS")
+ * "AS IS".  NetworkCS does not provide maintenance, improvements or
+ * support of any kind.
+ *
+ * NETWORKCS MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED,
+ * INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE, AS TO ANY ELEMENT OF THE
+ * SOFTWARE OR ANY SUPPORT PROVIDED IN CONNECTION WITH THIS SOFTWARE.
+ * In no event shall NetworkCS be responsible for any damages, including
+ * but not limited to consequential damages, arising from or relating to
+ * any use of the Software or related support.
+ *
+ * Copyright 1994-1998 Network Computing Services, Inc.
+ *
+ * Copies of this Software may be made, however, the above copyright
+ * notice must be reproduced on all copies.
+ *
+ *	@(#) $Id: spans_cls.h,v 1.6 1998/05/18 19:11:17 mks Exp $
+ *
+ */
+
+/*
+ * SPANS Signalling Manager
+ * ---------------------------
+ *
+ * SPANS Connectionless Datagram Service (CLS) control blocks
+ *
+ */
+
+#ifndef _SPANS_SPANSCLS_H
+#define _SPANS_SPANSCLS_H
+
+/*
+ * Protocol constants
+ */
+#define	SPANSARP_AGING		(60 * ATM_HZ)	/* ARP aging timer */
+#define	SPANSARP_RETRY		(3 * ATM_HZ)	/* ARP retry timer */
+#define	SPANSARP_MAXAGE		20 		/* Max ARP entry age (minutes)*/
+#define	SPANSARP_HASHSIZ	19		/* Hash table size */
+
+
+/*
+ * SPANS CLS protocol structure.  There will be one such structure for 
+ * each SPANS signalling instance.
+ */
+struct spanscls {
+	struct spanscls	*cls_next;	/* Next attached cls instance */
+	u_char		cls_state;	/* Protocol state (see below) */
+	struct spans	*cls_spans;	/* Spans signalling instance */
+	Atm_connection	*cls_conn;	/* Connection manager token */
+	struct ip_nif	*cls_ipnif;	/* IP network interface */
+};
+
+/*
+ * SPANS CLS Protocol States
+ */
+#define	CLS_CLOSED	1		/* CLS PVC is closed */
+#define	CLS_OPEN	2		/* CLS PVC is open */
+
+
+/*
+ * Structure for SPANS ARP mappings.  Each of these structures will contain 
+ * IP address to SPANS hardware address mappings.  There will be one such
+ * structure for each IP address currently in use.
+ */
+struct spansarp {
+	struct arpmap	sa_arpmap;	/* Common entry header */
+	struct spanscls	*sa_cls;	/* Interface where we learned answer */
+	struct spansarp	*sa_next;	/* Hash chain */
+	struct spansarp	*sa_rnext;	/* Retry chain */
+	u_char		sa_flags;	/* Flags (see below) */
+	u_char		sa_origin;	/* Origin (see below) */
+	u_short		sa_reftime;	/* Entry reference time (minutes) */
+	struct ipvcc	*sa_ivp;	/* IP VCCs waiting for answer */
+};
+#define	sa_dstip	sa_arpmap.am_dstip
+#define	sa_dstatm	sa_arpmap.am_dstatm
+#define	sa_dstatmsub	sa_arpmap.am_dstatmsub
+
+/*
+ * Entry Flags
+ */
+#define	SAF_VALID	ARPF_VALID	/* Entry is valid */
+#define	SAF_REFRESH	ARPF_REFRESH	/* Entry has been refreshed */
+#define	SAF_LOCKED	0x04		/* Entry is locked */
+
+/*
+ * Entry Origin
+ */
+#define	SAO_PERM	ARP_ORIG_PERM	/* Entry is permanently installed */
+#define	SAO_LOOKUP	20		/* Learned via lookup */
+
+
+/*
+ * SPANS CLS Packet Header
+ */
+struct spanscls_hdr {
+	/* IEEE 802.6 MAC header */
+	spans_addr	ch_dst;		/* Destination SPANS address */
+	spans_addr	ch_src;		/* Source SPANS address */
+	u_char		ch_proto;	/* */
+	u_char		ch_extlen;	/* */
+	u_short		ch_bridging;	/* */
+
+	/* LLC SNAP header */
+	u_char		ch_dsap;	/* Destination SAP */
+	u_char		ch_ssap;	/* Source SAP */
+	u_char		ch_ctl;		/* Control field */
+	u_char		ch_oui[3];	/* Organizationally Unique Identifier */
+	u_short		ch_pid;		/* Protocol Identifier */
+};
+
+/*
+ * SPANS ARP Packet Format
+ */
+struct spansarp_hdr {
+	u_short		ah_hrd;		/* Hardware type (see below) */
+	u_short		ah_pro;		/* Protocol type */
+	u_char		ah_hln;		/* Length of hardware address */
+	u_char		ah_pln;		/* Length of protocol address */
+	u_short		ah_op;		/* Operation code (see below) */
+	spans_addr	ah_sha;		/* Source hardware address */
+	u_char		ah_spa[4];	/* Source protocol address */
+	spans_addr	ah_tha;		/* Target hardware address */
+	u_char		ah_tpa[4];	/* Target protocol address */
+};
+
+/*
+ * Hardware types
+ */
+#define	ARP_SPANS	0x4040
+
+/*
+ * Operation types
+ */
+#define	ARP_REQUEST	1		/* SPANSARP request */
+#define	ARP_REPLY	2		/* SPANSARP response */
+
+#define	ARP_PACKET_LEN	\
+	(sizeof(struct spanscls_hdr) + sizeof(struct spansarp_hdr))
+
+#ifdef ATM_KERNEL
+/*
+ * Macros for manipulating SPANS ARP tables and entries
+ */
+#define SPANSARP_HASH(ip)	((u_long)(ip) % SPANSARP_HASHSIZ)
+
+#define	SPANSARP_ADD(sa)						\
+{								\
+	struct spansarp	**h;					\
+	h = &spansarp_arptab[SPANSARP_HASH((sa)->sa_dstip.s_addr)];	\
+	LINK2TAIL((sa), struct spansarp, *h, sa_next);		\
+}
+
+#define	SPANSARP_DELETE(sa)					\
+{								\
+	struct spansarp	**h;					\
+	h = &spansarp_arptab[SPANSARP_HASH((sa)->sa_dstip.s_addr)];	\
+	UNLINK((sa), struct spansarp, *h, sa_next);		\
+}
+
+#define	SPANSARP_LOOKUP(ip, sa)					\
+{								\
+	for ((sa) = spansarp_arptab[SPANSARP_HASH(ip)];		\
+				(sa); (sa) = (sa)->sa_next) {	\
+		if ((sa)->sa_dstip.s_addr == (ip))		\
+			break;					\
+	}							\
+}
+
+
+/*
+ * External variables
+ */
+extern struct spanscls		*spanscls_head;
+extern struct spanscls_hdr	spanscls_hdr;
+
+#endif	/* ATM_KERNEL */
+
+#endif	/* _SPANS_SPANSCLS_H */