Additional RAP error code for password changes sent to a BDC, from Devin

[obnox/wireshark/wip.git] / xdlc.h

diff --git a/xdlc.h b/xdlc.h
index cbc699a37b7d77b86e9ba79ffd8e07ef167d7574..8d17ce4d0fc073db56a4a1c44b21e78d53bcccf2 100644 (file)
--- a/xdlc.h
+++ b/xdlc.h
@@ -2,10 +2,10 @@
  * Define *DLC frame types, and routine to dissect the control field of
  * a *DLC frame.
  *
- * $Id: xdlc.h,v 1.1 1999/08/04 04:37:46 guy Exp $
+ * $Id: xdlc.h,v 1.15 2002/03/31 21:09:00 guy Exp $
  *
  * Ethereal - Network traffic analyzer
- * By Gerald Combs <gerald@unicom.net>
+ * By Gerald Combs <gerald@zing.org>
  * Copyright 1998 Gerald Combs
  *
  * 
@@ -24,6 +24,9 @@
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  */
 
+#ifndef __XDLC_H__
+#define __XDLC_H__
+
 /*
  * Low-order bits of first (extended) or only (basic) octet of control
  * field, specifying the frame type.
@@ -32,5 +35,55 @@
 #define XDLC_S         0x01    /* Supervisory frames */
 #define XDLC_U         0x03    /* Unnumbered frames */
 
-int dissect_xdlc_control(const u_char *pd, int offset, frame_data *fd,
-  proto_tree *xdlc_tree, int hf_xdlc_control, int is_response, int extended);
+/*
+ * U-format modifiers.
+ */
+#define XDLC_U_MODIFIER_MASK   0xEC
+#define XDLC_UI                0x00    /* Unnumbered Information */
+#define XDLC_UP                0x20    /* Unnumbered Poll */
+#define XDLC_DISC      0x40    /* Disconnect (command) */
+#define XDLC_RD                0x40    /* Request Disconnect (response) */
+#define XDLC_UA                0x60    /* Unnumbered Acknowledge */
+#define XDLC_SNRM      0x80    /* Set Normal Response Mode */
+#define XDLC_TEST      0xE0    /* Test */
+#define XDLC_SIM       0x04    /* Set Initialization Mode (command) */
+#define XDLC_RIM       0x04    /* Request Initialization Mode (response) */
+#define XDLC_FRMR      0x84    /* Frame reject */
+#define XDLC_CFGR      0xC4    /* Configure */
+#define XDLC_SARM      0x0C    /* Set Asynchronous Response Mode (command) */
+#define XDLC_DM                0x0C    /* Disconnected mode (response) */
+#define XDLC_SABM      0x2C    /* Set Asynchronous Balanced Mode */
+#define XDLC_SARME     0x4C    /* Set Asynchronous Response Mode Extended */
+#define XDLC_SABME     0x6C    /* Set Asynchronous Balanced Mode Extended */
+#define XDLC_RESET     0x8C    /* Reset */
+#define XDLC_XID       0xAC    /* Exchange identification */
+#define XDLC_SNRME     0xCC    /* Set Normal Response Mode Extended */
+#define XDLC_BCN       0xEC    /* Beacon */
+
+/*
+ * This macro takes the control field of an xDLC frame, as returned by
+ * "get_xdlc_control()" or "dissect_xdlc_control()", and evaluates to
+ * TRUE if the frame is an "information" frame and FALSE if it isn't.
+ * Note that frames other than information frames can have data in them,
+ * e.g. TEST frames.
+ */
+#define XDLC_IS_INFORMATION(control) \
+       (((control) & 0x1) == XDLC_I || (control) == (XDLC_UI|XDLC_U))
+
+/*
+ * This macro takes the control field of an xDLC frame, and a flag saying
+ * whether we're doing basic or extended operation, and evaluates to
+ * the length of that field (if it's an Unnumbered frame, or we're not
+ * in extended mode, it's 1 byte long, otherwise it's 2 bytes long).
+ */
+#define XDLC_CONTROL_LEN(control, is_extended) \
+       ((((control) & 0x3) == XDLC_U || !(is_extended)) ? 1 : 2)
+
+int get_xdlc_control(const u_char *pd, int offset,
+  int extended);
+
+int dissect_xdlc_control(tvbuff_t *tvb, int offset, packet_info *pinfo,
+  proto_tree *xdlc_tree, int hf_xdlc_control, gint ett_xdlc_control,
+  int is_response, int extended);
+
+#endif