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Diffstat (limited to 'usr.sbin/i4b/isdndecode/layer2.c')
-rw-r--r--usr.sbin/i4b/isdndecode/layer2.c298
1 files changed, 0 insertions, 298 deletions
diff --git a/usr.sbin/i4b/isdndecode/layer2.c b/usr.sbin/i4b/isdndecode/layer2.c
deleted file mode 100644
index b7997dd7a965a..0000000000000
--- a/usr.sbin/i4b/isdndecode/layer2.c
+++ /dev/null
@@ -1,298 +0,0 @@
-/*
- * Copyright (c) 1997, 1998 Hellmuth Michaelis. 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.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
- *
- *---------------------------------------------------------------------------
- *
- * layer2.c - decode and print layer 2 (Q.921) information
- * -------------------------------------------------------
- *
- * $Id: layer2.c,v 1.3 1998/12/18 17:09:38 hm Exp $
- *
- * last edit-date: [Fri Dec 18 18:12:09 1998]
- *
- *---------------------------------------------------------------------------*/
-
-#include "decode.h"
-
-/*---------------------------------------------------------------------------*
- * decode poll bit
- *---------------------------------------------------------------------------*/
-static void
-poll(int layer, char *buffer, int cnt, unsigned char value, unsigned char mask)
-{
- sprintline(layer, buffer, cnt, value, mask, "P/F, Poll = %s", (value & mask) ? "Immediate Response Required" : "No Immediate Response Required");
-}
-
-/*---------------------------------------------------------------------------*
- * decode final bit
- *---------------------------------------------------------------------------*/
-static void
-final(int layer, char *buffer, int cnt, unsigned char value, unsigned char mask)
-{
- sprintline(layer, buffer, cnt, value, mask, "P/F, Final = %s", (value & mask) ? "Result of Poll" : "No Result of Poll");
-}
-
-/*---------------------------------------------------------------------------*
- * decode protocol specified in Q.921
- *---------------------------------------------------------------------------*/
-int
-layer2(char *pbuf, unsigned char *buf, int dir, int printit)
-{
- int sap, tei, cmd;
- int cnt = 0;
- char locbuf[32000];
- char *lbufp = &locbuf[0];
- char buffer[80];
-
- *lbufp = '\0';
- *pbuf = '\0';
-
- /* address high */
-
- sap = (buf[0] >> 2) & 0x3f;
-
- if(sap == 0)
- strcpy(buffer, "Call Control");
- else if((sap >= 1) && (sap <= 15))
- strcpy(buffer, "Reserved");
- else if(sap == 16)
- strcpy(buffer, "X.25");
- else if((sap >= 17) && (sap <= 31))
- strcpy(buffer, "Reserved");
- else if(sap == 63)
- strcpy(buffer, "Layer 2 Management");
- else
- strcpy(buffer, "Not available for Q.921");
- sprintline(2, lbufp+strlen(lbufp), cnt, buf[0], 0xfc, "SAPI = %d (%s)", sap, buffer);
-
- if(dir == FROM_TE)
- cmd = !(buf[0] & 0x02);
- else
- cmd = buf[0] & 0x02;
-
- sprintline(2, lbufp+strlen(lbufp), cnt, buf[0], 0x02, "C/R = %s", cmd ? "Command" : "Response");
- extension(2, lbufp+strlen(lbufp), cnt, buf[0], 0x01);
- cnt++;
-
- /* address low */
-
- tei = buf[1] >> 1;
-
- if((tei >= 0) && (tei <= 63))
- strcpy(buffer, "Non-automatic TEI");
- else if((tei >= 64) && (tei <= 126))
- strcpy(buffer, "Automatic TEI");
- if(tei == 127)
- strcpy(buffer, "Group TEI");
-
- sprintline(2, lbufp+strlen(lbufp), cnt, buf[1], 0xfe, "TEI = %d (%s)", tei, buffer);
- extension(2, lbufp+strlen(lbufp), cnt, buf[1], 0x01);
- cnt++;
-
- /* control 1 */
-
- if((buf[2] & 0x03) == 0x03)
- {
- /* U-frame */
-
- if((buf[2] & 0xef) == 0x6f)
- {
- /* SABME */
-
- sprintline(2, lbufp+strlen(lbufp), cnt, buf[2], 0xef, "U-Frame: SABME (Set Asynchonous Balanced Mode)");
- poll(2, lbufp+strlen(lbufp), cnt, buf[2], 0x10);
- cnt++;
- }
- else if((buf[2] & 0xef) == 0x0f)
- {
- /* DM */
-
- sprintline(2, lbufp+strlen(lbufp), cnt, buf[2], 0xef, "U-Frame: DM (Disconnected Mode)");
- final(2, lbufp+strlen(lbufp), cnt, buf[2], 0x10);
- cnt++;
- }
- else if((buf[2] & 0xef) == 0x03)
- {
- /* UI */
-
- sprintline(2, lbufp+strlen(lbufp), cnt, buf[2], 0xef, "U-Frame: UI (Unnumbered Information)");
- poll(2, lbufp+strlen(lbufp), cnt, buf[2], 0x10);
- cnt++;
-
- if(sap == 63 && (buf[3] == 0x0f)) /* TEI management */
- {
- sprintline(2, lbufp+strlen(lbufp), cnt, buf[3], 0xff, "MEI (Management Entity Identifier)");
- cnt++;
- sprintline(2, lbufp+strlen(lbufp), cnt, buf[4], 0xff, "Ri = 0x%04x (Reference number high)", (buf[4] << 8) | buf[5]);
- cnt++;
- sprintline(2, lbufp+strlen(lbufp), cnt, buf[5], 0xff, "Ri (Reference Number low)");
- cnt++;
-
- switch(buf[6])
- {
- case 0x01:
- strcpy(buffer, "Identity Request");
- break;
- case 0x02:
- strcpy(buffer, "Identity Assigned");
- break;
- case 0x03:
- strcpy(buffer, "Identity denied");
- break;
- case 0x04:
- strcpy(buffer, "Identity Check Request");
- break;
- case 0x05:
- strcpy(buffer, "Identity Check Response");
- break;
- case 0x06:
- strcpy(buffer, "Identity Remove");
- break;
- case 0x07:
- strcpy(buffer, "Identity Verify");
- break;
- default:
- strcpy(buffer, "undefined");
- break;
- }
-
- sprintline(2, lbufp+strlen(lbufp), cnt, buf[6], 0xff, "TEI %s (Message Type %d)", buffer, buf[6]);
- cnt++;
-
- switch(buf[6])
- {
- case 0x01:
- strcpy(buffer, "Any TEI value acceptable");
- break;
- case 0x02:
- strcpy(buffer, "");
- break;
- case 0x03:
- strcpy(buffer, "No TEI Value available");
- break;
- case 0x04:
- strcpy(buffer, "Check all TEI values");
- break;
- case 0x05:
- strcpy(buffer, "");
- break;
- case 0x06:
- strcpy(buffer, "Request for removal of all TEI values");
- break;
- case 0x07:
- strcpy(buffer, "");
- break;
- default:
- strcpy(buffer, "");
- break;
- }
- if(((buf[7] >> 1) & 0x7f) == 127)
- sprintline(2, lbufp+strlen(lbufp), cnt, buf[7], 0xfe, "Ai = %d (Action Indicator = %s)", (buf[7] >> 1) & 0x7f, buffer);
- else
- sprintline(2, lbufp+strlen(lbufp), cnt, buf[7], 0xfe, "Ai = %d (Action Indicator)", (buf[7] >> 1) & 0x7f);
- extension(2, lbufp+strlen(lbufp), cnt, buf[7], 0x01);
- cnt++;
- }
- }
- else if((buf[2] & 0xef) == 0x43)
- {
- /* DISC */
-
- sprintline(2, lbufp+strlen(lbufp), cnt, buf[2], 0xef, "U-Frame: DISC (Disconnect)");
- poll(2, lbufp+strlen(lbufp), cnt, buf[2], 0x10);
- cnt++;
- }
- else if((buf[2] & 0xef) == 0x63)
- {
- /* UA */
-
- sprintline(2, lbufp+strlen(lbufp), cnt, buf[2], 0xef, "U-Frame: UA (Unnumbered Acknowledge)");
- final(2, lbufp+strlen(lbufp), cnt, buf[2], 0x10);
- cnt++;
- }
- else if((buf[2] & 0xef) == 0x87)
- {
- /* FRMR */
-
- sprintline(2, lbufp+strlen(lbufp), cnt, buf[2], 0xef, "U-Frame: FRMR (Frame Reject)");
- final(2, lbufp+strlen(lbufp), cnt, buf[2], 0x10);
- cnt++;
- }
- else if((buf[2] & 0xef) == 0x9f)
- {
- /* XID */
-
- sprintline(2, lbufp+strlen(lbufp), cnt, buf[2], 0xef, "U-Frame: XID (Exchange Identification)");
- if(cmd)
- poll(2, lbufp+strlen(lbufp), cnt, buf[2], 0x10);
- else
- final(2, lbufp+strlen(lbufp), cnt, buf[2], 0x10);
- cnt++;
- }
-
- }
- else if((buf[2] & 0x03) == 0x01)
- {
- /* S-frame */
-
- if(buf[2] == 0x01)
- strcpy(buffer, "RR (Receiver Ready)");
- else if(buf[2] == 0x05)
- strcpy(buffer, "RNR (Receiver Not Ready)");
- else if(buf[2] == 0x09)
- strcpy(buffer, "REJ (Reject)");
- else
- strcpy(buffer, "Unknown");
-
- sprintline(2, lbufp+strlen(lbufp), cnt, buf[2], 0xff, "S-Frame: %s", buffer);
- cnt++;
-
- sprintline(2, lbufp+strlen(lbufp), cnt, buf[3], 0xfe, "N(R) = %d (receive sequence number)", (buf[3] >> 1) & 0x7f);
- if(cmd)
- poll(2, lbufp+strlen(lbufp), cnt, buf[3], 0x01);
- else
- final(2, lbufp+strlen(lbufp), cnt, buf[3], 0x01);
- cnt++;
-
- }
- else if((buf[2] & 0x01) == 0x00)
- {
- /* I-frame */
-
- sprintline(2, lbufp+strlen(lbufp), cnt, buf[2], 0xfe, "N(S) = %d (send sequence number)", (buf[2] >> 1) & 0x7f);
- sprintline(2, lbufp+strlen(lbufp), cnt, buf[2], 0x01, "I-Frame: Information transfer");
- cnt++;
-
- sprintf(buffer, "N(R) = %d", (buf[3] >> 1) & 0x7f);
- sprintline(2, lbufp+strlen(lbufp), cnt, buf[3], 0xfe, "N(R) = %d (receive sequence number)", (buf[3] >> 1) & 0x7f);
- poll(2, lbufp+strlen(lbufp), cnt, buf[3], 0x01);
- cnt++;
-
- }
-
- sprintf((pbuf+strlen(pbuf)),"%s", &locbuf[0]);
- return (cnt);
-}
-
-/* EOF */
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