date and time created 90/05/11 11:21:31 by sklower

SCCS-vsn: sys/netccitt/x25_var.h 7.1

diff --git a/usr/src/sys/netccitt/x25_var.h b/usr/src/sys/netccitt/x25_var.h
new file mode 100644 (file)
index 0000000..aa632d5
--- /dev/null
+++ b/usr/src/sys/netccitt/x25_var.h
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 1989 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that the above copyright notice and this paragraph are
+ * duplicated in all such forms and that any documentation,
+ * advertising materials, and other materials related to such
+ * distribution and use acknowledge that the software was developed
+ * by the University of California, Berkeley.  The name of the
+ * University may not be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ *     @(#)x25_var.h   7.1 (Berkeley) %G%
+ */
+
+
+/*
+ * Device-independent x25 driver data.
+ */
+struct x25com {
+       struct  ifnet xc_if;            /* network-visible interface */
+/*     int     (*xc_if.if_start)()     /* connect, confirm procedure */
+       u_char  xc_addrlen;             /* length of X.121 address */
+       u_char  xc_addr[16];            /* X.121 address */
+       u_short xc_flags;               /* X.25 specific flags */
+       u_short xc_nchan;               /* number of logical channels */
+       u_short xc_nactive;             /* number of live logical channels */
+       u_short xc_npvc;                /* # of permanent virt. circuits */
+       u_short xc_pvcx;                /* index of first pcv */
+       u_short xc_svcx;                /* index of first svc */
+       u_short xc_dg_idletimo;         /* timeout to close idle dg channel */
+       u_short xc_rslvtimo;            /* if name translation fails, rid */
+       struct  x25lcb **xc_lcbvec;     /* where to dispatch data */
+       int     (*xc_disconnect)();     /* to delete idle dg circuits */
+};
+#define        XCF_HSL3        0x1             /* Hardware support for level 3 */
+#define XCF_HSL2       0x2             /* Hardware support for level 2 */
+
+
+/*
+ * Local Connection Block.
+ */
+
+struct x25lcb {
+       struct  xq      {
+               int     (*xq_put)();    /* How to process data */
+               struct  mbuf *xq_data;  /* Queued data */
+               int     xq_space;       /* For accounting */
+               int     xq_flags;
+               int     (*xq_unblock)();/* called & cleared when unblocking */
+               caddr_t xq_proto;       /* for other service entries */
+               caddr_t xq_next;        /* next q, or route, or pcb */
+       }       xl_downq, xl_upq;
+/*     (*xl_downq.xq_next->xq_put)()   /* LAPB put when using pk_output() */
+       int     xl_flags;               /* valid, c-o versus dg */
+       int     xl_timer;               /* figure out what to close */
+       int     xl_state;               /* connecting, connected, resolving */
+       int     xl_index;               /* which entry we are in device table */
+       struct  x25com *xl_xc;          /* back pointer to device */
+       /*
+        * x25pkb (packet-level control block) would follow immediately
+        * for devices only supplying LAPB or less.
+        */
+};
+/* flags */
+#define XL_VALID       0x1             /* Circuit is live, etc. */
+#define XL_DGRAM       0x2             /* not connection oriented, can close */
+#define XL_RTHELD      0x4             /* this lcb references rtentry */
+
+#define XQ_UP          0x1             /* I am an up queue */
+#define XQ_DOWN                0x2             /* I am a down queue */
+
+/* states for LCB */
+#define XLS_NEWBORN    0x0
+#define XLS_CONNECTED  0x1
+#define XLS_CONNECTING 0x2
+#define XLS_RESOLVING  0x3
+#define XLS_DISCONNECTING 0x4
+#define XLS_FREE       0x5
+
+#ifdef KERNEL
+int    x25_ifinput();
+#endif