diff options
Diffstat (limited to 'usr.sbin/i4b/isdntrace/q921.c')
| -rw-r--r-- | usr.sbin/i4b/isdntrace/q921.c | 268 |
1 files changed, 0 insertions, 268 deletions
diff --git a/usr.sbin/i4b/isdntrace/q921.c b/usr.sbin/i4b/isdntrace/q921.c deleted file mode 100644 index e8c14dc..0000000 --- a/usr.sbin/i4b/isdntrace/q921.c +++ /dev/null @@ -1,268 +0,0 @@ -/* - * Copyright (c) 1996 Gary Jennejohn. 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. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * 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. - * - *---------------------------------------------------------------------------* - * - * q.921.c - print Q.921 traces - * ---------------------------- - * - * $Id: q921.c,v 1.4 1999/12/13 21:25:26 hm Exp $ - * - * $FreeBSD$ - * - * last edit-date: [Mon Dec 13 21:56:46 1999] - * - *---------------------------------------------------------------------------*/ - -#include "trace.h" - -/*---------------------------------------------------------------------------* - * decode LAPD (Q.921) protocol - *---------------------------------------------------------------------------*/ -int -decode_lapd(char *pbuf, int n, unsigned char *buf, int dir, int raw, int printit) -{ - int sap, tei, cmd, p_f; - int cnt = 0; - int i; - char locbuf[32000]; - char *lbufp = &locbuf[0]; - - *lbufp = '\0'; - *pbuf = '\0'; - - sap = (buf[0] >> 2) & 0x3f; - cnt++; - - tei = buf[1] >> 1; - cnt++; - - if(dir == FROM_TE) - cmd = !(buf[0] & 2); - else - cmd = buf[0] & 2; - - switch (sap) - { - /* SAPI control procedures */ - case 0: - { - if(printit) - sprintf((lbufp+strlen(lbufp)), "Q921: SAP=%d (Call Control), %c, TEI=%d, ", sap, cmd?'C':'R', tei); - - if((buf[2] & 0x01) == 0) - { - if(printit) - sprintf((lbufp+strlen(lbufp)), "I-Frame: "); - - p_f = buf [3] & 1; - - if(printit) - sprintf((lbufp+strlen(lbufp)), "N(S) %d N(R) %d P %d ", buf [2] >> 1, buf [3] >> 1, p_f); - - cnt += 2; - } - else if((buf[2] & 0x03) == 0x01) - { - if(printit) - sprintf((lbufp+strlen(lbufp)), "S-Frame: "); - - p_f = buf [3] & 1; - cmd = buf [2] & 0x0c; - - if(printit) - { - if (cmd == 0) - sprintf((lbufp+strlen(lbufp)), "RR N(R) %d PF %d ", buf [3] >> 1, p_f); - if (cmd == 4) - sprintf((lbufp+strlen(lbufp)), "RNR N(R) %d PF %d ", buf [3] >> 1, p_f); - if (cmd == 8) - sprintf((lbufp+strlen(lbufp)), "REJ N(R) %d PF %d ", buf [3] >> 1, p_f); - } - cnt += 2; - } - else if((buf[2] & 0x03) == 0x03) - { - if(printit) - sprintf((lbufp+strlen(lbufp)), "U-Frame: "); - - p_f = (buf [2] & 0x10) >> 4; - cmd = buf [2] & 0xec; - - if(printit) - { - if (cmd == 0x6c) - sprintf((lbufp+strlen(lbufp)), "SABME PF %d ", p_f); - if (cmd == 0x0c) - sprintf((lbufp+strlen(lbufp)), "DM PF %d ", p_f); - if (cmd == 0) - sprintf((lbufp+strlen(lbufp)), "UI PF %d ", p_f); - if (cmd == 0x40) - sprintf((lbufp+strlen(lbufp)), "DISC PF %d ", p_f); - if (cmd == 0x60) - sprintf((lbufp+strlen(lbufp)), "UA PF %d ", p_f); - if (cmd == 0x84) - sprintf((lbufp+strlen(lbufp)), "FRMR PF %d ", p_f); - if (cmd == 0xac) - sprintf((lbufp+strlen(lbufp)), "XID PF %d ", p_f); - /* information field ??? */ - } - cnt++; - } - break; - } - - /* D channel X.25 */ - - case 16: - if(printit) - sprintf((lbufp+strlen(lbufp)), "Q921: SAP=%d (X.25), %c, TEI=%d, ", sap, cmd?'C':'R', tei); - cnt = n; - goto dump; - - /* Loopback test */ - - case 32: - if(printit) - sprintf((lbufp+strlen(lbufp)), "Q921: SAP=%d (Loopbacktest), %c, TEI=%d, ", sap, cmd?'C':'R', tei); - cnt = n; - goto dump; - - /* SAPI layer 2 management functions */ - - case 63: - { - if(printit) - sprintf((lbufp+strlen(lbufp)), "Q921: SAP=%d (TEI-Management), %c, TEI=%d, ", sap, cmd?'C':'R', tei); - - if (tei != 127) - { - if(printit) - sprintf((lbufp+strlen(lbufp)), "ILLEGAL TEI\n"); - cnt = n; - goto dump; - } - - if (buf [2] != 3 && buf [3] != 0xf) - { - if(printit) - sprintf((lbufp+strlen(lbufp)), "invalid format!\n"); - cnt = n; - goto dump; - } - cnt+= 2; /* UI + MEI */ - - if(printit) - sprintf((lbufp+strlen(lbufp)), "Ri=0x%04hx, ", *(short *)&buf[4]); - cnt += 2; /* Ri */ - - switch (buf[6]) - { - case 1: - if(printit) - sprintf((lbufp+strlen(lbufp)), "IdRequest, Ai=%d", (buf [7] >> 1)); - cnt += 2; - break; - case 2: - if(printit) - sprintf((lbufp+strlen(lbufp)), "IdAssign, Ai=%d", (buf [7] >> 1)); - cnt += 2; - break; - case 3: - if(printit) - sprintf((lbufp+strlen(lbufp)), "IdDenied, Ai=%d", (buf [7] >> 1)); - cnt += 2; - break; - case 4: - if(printit) - sprintf((lbufp+strlen(lbufp)), "IdCheckReq, Ai=%d", (buf [7] >> 1)); - cnt += 2; - break; - case 5: - if(printit) - sprintf((lbufp+strlen(lbufp)), "IdCheckResp, Ai=%d", (buf [7] >> 1)); - cnt += 2; - break; - case 6: - if(printit) - sprintf((lbufp+strlen(lbufp)), "IdRemove, Ai=%d", (buf [7] >> 1)); - cnt += 2; - break; - case 7: - if(printit) - sprintf((lbufp+strlen(lbufp)), "IdVerify, Ai=%d", (buf [7] >> 1)); - cnt += 2; - break; - default: - if(printit) - sprintf((lbufp+strlen(lbufp)), "Unknown Msg Type\n"); - cnt = n; - goto dump; - } - break; - } - - /* Illegal SAPI */ - - default: - if(printit) - sprintf((lbufp+strlen(lbufp)), "Q921: ERROR, SAP=%d (Illegal SAPI), %c, TEI=%d\n", sap, cmd?'C':'R', tei); - cnt = n; - goto dump; - } - -dump: - if(printit) - sprintf((lbufp+strlen(lbufp)), "\n"); - - if(raw && printit) - { - int j; - for (i = 0; i < cnt; i += 16) - { - sprintf((pbuf+strlen(pbuf)),"Dump:%.3d ", i); - for (j = 0; j < 16; j++) - if (i + j < cnt) - sprintf((pbuf+strlen(pbuf)),"%02x ", buf[i + j]); - else - sprintf((pbuf+strlen(pbuf))," "); - sprintf((pbuf+strlen(pbuf))," "); - for (j = 0; j < 16 && i + j < cnt; j++) - if (isprint(buf[i + j])) - sprintf((pbuf+strlen(pbuf)),"%c", buf[i + j]); - else - sprintf((pbuf+strlen(pbuf)),"."); - sprintf((pbuf+strlen(pbuf)),"\n"); - } - } - - sprintf((pbuf+strlen(pbuf)),"%s", &locbuf[0]); - - return (cnt); -} - -/* EOF */ |
