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freebsd-skq/usr.sbin/i4b/isdntrace/q931_util.c
Hellmuth Michaelis ba518fe550 update to i4b version 0.95.04
2000-10-09 14:22:51 +00:00

1048 lines
23 KiB
C
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/*
* Copyright (c) 1997, 2000 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.
*
*---------------------------------------------------------------------------
*
* q931_util.c - utility functions to print Q.931 traces
* -----------------------------------------------------
*
* $Id: q931_util.c,v 1.11 2000/02/15 12:48:14 hm Exp $
*
* $FreeBSD$
*
* last edit-date: [Tue Feb 15 13:52:09 2000]
*
*---------------------------------------------------------------------------*/
#include "trace.h"
/*---------------------------------------------------------------------------*
* decode and print the cause
*---------------------------------------------------------------------------*/
int
p_q931cause(char *pbuf, unsigned char *buf)
{
int j;
int len;
int i = 0;
int ls;
int r = 0;
int rflag = 0;
i++; /* index -> length */
len = buf[i];
i++; /* coding/location */
len--;
ls = buf[i];
i++;
len--;
if(!(buf[i-1] & 0x80))
{
r = buf[i];
rflag = 1;
i++;
len--;
}
sprintf((pbuf+strlen(pbuf)), "%s ", print_cause_q850(buf[i] & 0x7f));
sprintf((pbuf+strlen(pbuf)), "\n (location=");
switch(ls & 0x0f)
{
case 0x00:
sprintf((pbuf+strlen(pbuf)), "user");
break;
case 0x01:
sprintf((pbuf+strlen(pbuf)), "private network serving local user");
break;
case 0x02:
sprintf((pbuf+strlen(pbuf)), "public network serving local user");
break;
case 0x03:
sprintf((pbuf+strlen(pbuf)), "transit network");
break;
case 0x04:
sprintf((pbuf+strlen(pbuf)), "public network serving remote user");
break;
case 0x05:
sprintf((pbuf+strlen(pbuf)), "private network serving remote user");
break;
case 0x07:
sprintf((pbuf+strlen(pbuf)), "international network");
break;
case 0x0a:
sprintf((pbuf+strlen(pbuf)), "network beyond interworking point");
break;
default:
sprintf((pbuf+strlen(pbuf)), "reserved (0x%02x)", ls & 0x0f);
break;
}
sprintf((pbuf+strlen(pbuf)), ", std=");
switch((ls & 0x60) >> 5)
{
case 0:
sprintf((pbuf+strlen(pbuf)), "CCITT");
break;
case 1:
sprintf((pbuf+strlen(pbuf)), "ISO/IEC");
break;
case 2:
sprintf((pbuf+strlen(pbuf)), "National");
break;
case 3:
sprintf((pbuf+strlen(pbuf)), "Local");
break;
}
if(rflag)
{
sprintf((pbuf+strlen(pbuf)), ", rec=");
switch(r & 0x7f)
{
case 0:
sprintf((pbuf+strlen(pbuf)), "Q.931");
break;
case 3:
sprintf((pbuf+strlen(pbuf)), "X.21");
break;
case 4:
sprintf((pbuf+strlen(pbuf)), "X.25");
break;
case 5:
sprintf((pbuf+strlen(pbuf)), "Q.1031/Q.1051");
break;
default:
sprintf((pbuf+strlen(pbuf)), "Reserved");
break;
}
}
sprintf((pbuf+strlen(pbuf)),")");
i++;
len--;
for(j = 0; j < len; j++)
sprintf((pbuf+strlen(pbuf))," 0x%02x", buf[j+i]);
sprintf((pbuf+strlen(pbuf)),"]");
i += (len+1);
return(i);
}
/*---------------------------------------------------------------------------*
* decode and print the bearer capability
*---------------------------------------------------------------------------*/
int
p_q931bc(char *pbuf, unsigned char *buf)
{
int len;
int i = 0;
int mr = 0;
i++; /* index -> length */
len = buf[i];
i++;
sprintf((pbuf+strlen(pbuf)), "\n cap=");
switch(buf[i] & 0x1f)
{
case 0x00:
sprintf((pbuf+strlen(pbuf)), "speech");
break;
case 0x08:
sprintf((pbuf+strlen(pbuf)), "unrestricted digital information");
break;
case 0x09:
sprintf((pbuf+strlen(pbuf)), "restricted digital information");
break;
case 0x10:
sprintf((pbuf+strlen(pbuf)), "3.1 kHz audio");
break;
case 0x11:
sprintf((pbuf+strlen(pbuf)), "unrestricted digital information with tones");
break;
case 0x18:
sprintf((pbuf+strlen(pbuf)), "video");
break;
default:
sprintf((pbuf+strlen(pbuf)), "reserved (0x%02x)", buf[i] & 0x0f);
break;
}
sprintf((pbuf+strlen(pbuf)), "\n std=");
switch((buf[i] & 0x60) >> 5)
{
case 0:
sprintf((pbuf+strlen(pbuf)), "CCITT");
break;
case 1:
sprintf((pbuf+strlen(pbuf)), "ISO/IEC");
break;
case 2:
sprintf((pbuf+strlen(pbuf)), "National");
break;
case 3:
sprintf((pbuf+strlen(pbuf)), "NSI Std");
break;
}
i++;
len--;
sprintf((pbuf+strlen(pbuf)), "\n rate=");
switch(buf[i] & 0x1f)
{
case 0x00:
sprintf((pbuf+strlen(pbuf)), "packet mode");
break;
case 0x10:
sprintf((pbuf+strlen(pbuf)), "64 kbit/s");
break;
case 0x11:
sprintf((pbuf+strlen(pbuf)), "2 x 64 kbit/s");
break;
case 0x13:
sprintf((pbuf+strlen(pbuf)), "384 kbit/s");
break;
case 0x15:
sprintf((pbuf+strlen(pbuf)), "1536 kbit/s");
break;
case 0x17:
sprintf((pbuf+strlen(pbuf)), "1920 kbit/s");
break;
case 0x18:
sprintf((pbuf+strlen(pbuf)), "Multirate");
mr = 1;
break;
default:
sprintf((pbuf+strlen(pbuf)), "reserved (0x%02x)", buf[i] & 0x0f);
break;
}
sprintf((pbuf+strlen(pbuf)), "\n mode=");
switch((buf[i] & 0x60) >> 5)
{
case 0:
sprintf((pbuf+strlen(pbuf)), "circuit");
break;
case 2:
sprintf((pbuf+strlen(pbuf)), "packet");
break;
default:
sprintf((pbuf+strlen(pbuf)), "reserved (0x%02x)", ((buf[i] & 0x60) >> 5));
break;
}
i++;
len--;
if(!len)
goto exit;
if(mr)
{
sprintf((pbuf+strlen(pbuf)), "\n rate multiplier=%d", buf[i] & 0x7f);
i++;
len--;
}
if(!len)
goto exit;
sprintf((pbuf+strlen(pbuf)), "\n layer1=");
switch(buf[i] & 0x1f)
{
case 0x01:
sprintf((pbuf+strlen(pbuf)), "V.110");
break;
case 0x02:
sprintf((pbuf+strlen(pbuf)), "G.711 u-law");
break;
case 0x03:
sprintf((pbuf+strlen(pbuf)), "G.711 A-law");
break;
case 0x04:
sprintf((pbuf+strlen(pbuf)), "G.721");
break;
case 0x05:
sprintf((pbuf+strlen(pbuf)), "H.221/H.242");
break;
case 0x07:
sprintf((pbuf+strlen(pbuf)), "Non-Std");
break;
case 0x08:
sprintf((pbuf+strlen(pbuf)), "V.120");
break;
case 0x09:
sprintf((pbuf+strlen(pbuf)), "X.31");
break;
default:
sprintf((pbuf+strlen(pbuf)), "reserved (0x%02x)", buf[i] & 0x0f);
break;
}
i++;
len--;
if(!len)
goto exit;
if(!(buf[i-1] & 0x80))
{
sprintf((pbuf+strlen(pbuf)), "\n user rate=0x%02x ", buf[i] & 0x1f);
if(buf[i] & 0x40)
sprintf((pbuf+strlen(pbuf)), "(async,");
else
sprintf((pbuf+strlen(pbuf)), "(sync,");
if(buf[i] & 0x20)
sprintf((pbuf+strlen(pbuf)), "in-band neg. possible)");
else
sprintf((pbuf+strlen(pbuf)), "in-band neg not possible)");
i++;
len--;
}
if(!len)
goto exit;
if(!(buf[i-1] & 0x80))
{
sprintf((pbuf+strlen(pbuf)), "\n clk/flow=0x%02x", buf[i] & 0x1f);
sprintf((pbuf+strlen(pbuf)), "\n intermediate rate=");
switch((buf[i] & 0x60) >> 5)
{
case 0:
sprintf((pbuf+strlen(pbuf)), "not used");
break;
case 1:
sprintf((pbuf+strlen(pbuf)), "8 kbit/s");
break;
case 2:
sprintf((pbuf+strlen(pbuf)), "16 kbit/s");
break;
case 3:
sprintf((pbuf+strlen(pbuf)), "32 kbit/s");
break;
}
i++;
len--;
}
if(!len)
goto exit;
if(!(buf[i-1] & 0x80))
{
sprintf((pbuf+strlen(pbuf)), "\n hdr/mfrm/etc.=0x%02x", buf[i]);
i++;
len--;
}
if(!len)
goto exit;
if(!(buf[i-1] & 0x80))
{
sprintf((pbuf+strlen(pbuf)), "\n stop/data/parity=0x%02x", buf[i]);
i++;
len--;
}
if(!len)
goto exit;
if(!(buf[i-1] & 0x80))
{
sprintf((pbuf+strlen(pbuf)), "\n modemtype=0x%02x", buf[i]);
i++;
len--;
}
if(!len)
goto exit;
switch(buf[i] & 0x7f)
{
case 0x42:
sprintf((pbuf+strlen(pbuf)), "\n layer2=Q.921/I.441");
break;
case 0x46:
sprintf((pbuf+strlen(pbuf)), "\n layer2=X.25 link");
break;
default:
sprintf((pbuf+strlen(pbuf)), "\n layer2=0x%02x",(buf[i] & 0x7f));
break;
}
i++;
len--;
if(!len)
goto exit;
switch(buf[i] & 0x7f)
{
case 0x62:
sprintf((pbuf+strlen(pbuf)), "\n layer3=Q.921/I.441");
break;
case 0x66:
sprintf((pbuf+strlen(pbuf)), "\n layer3=X.25 packet");
break;
default:
sprintf((pbuf+strlen(pbuf)), "\n layer3=0x%02x",(buf[i] & 0x7f));
break;
}
i++;
len--;
exit:
sprintf((pbuf+strlen(pbuf)), "]");
return(i);
}
/*---------------------------------------------------------------------------*
* decode and print the ISDN (telephone) number
*---------------------------------------------------------------------------*/
int
p_q931address(char *pbuf, unsigned char *buf)
{
int j;
int len;
int i = 0;
int tp;
int ind = 0;
int indflag = 0;
i++; /* index -> length */
len = buf[i];
i++; /* index -> type/plan */
tp = buf[i];
i++;
len--;
if(!(tp & 0x80))
{
ind = buf[i];
indflag = 1;
i++;
len--;
}
for(j = 0; j < len; j++)
{
sprintf((pbuf+strlen(pbuf)),"%c", buf[j+i]);
}
switch((tp & 0x70) >> 4)
{
case 0:
sprintf((pbuf+strlen(pbuf)), " (type=unknown, ");
break;
case 1:
sprintf((pbuf+strlen(pbuf)), " (type=international, ");
break;
case 2:
sprintf((pbuf+strlen(pbuf)), " (type=national, ");
break;
case 3:
sprintf((pbuf+strlen(pbuf)), " (type=network specific, ");
break;
case 4:
sprintf((pbuf+strlen(pbuf)), " (type=subscriber, ");
break;
case 6:
sprintf((pbuf+strlen(pbuf)), " (type=abbreviated, ");
break;
default:
sprintf((pbuf+strlen(pbuf)), " (type=reserved (%d), ", ((tp & 0x70) >> 4));
break;
}
switch(tp & 0x0f)
{
case 0:
sprintf((pbuf+strlen(pbuf)), "plan=unknown");
break;
case 1:
sprintf((pbuf+strlen(pbuf)), "plan=ISDN");
break;
case 3:
sprintf((pbuf+strlen(pbuf)), "plan=Data");
break;
case 4:
sprintf((pbuf+strlen(pbuf)), "plan=Telex");
break;
case 8:
sprintf((pbuf+strlen(pbuf)), "plan=National");
break;
case 9:
sprintf((pbuf+strlen(pbuf)), "plan=private");
break;
default:
sprintf((pbuf+strlen(pbuf)), "plan=reserved (%d)", (tp & 0x0f));
break;
}
if(indflag)
{
sprintf((pbuf+strlen(pbuf)), ",\n ");
switch((ind & 0x60) >> 5)
{
case 0:
sprintf((pbuf+strlen(pbuf)), "presentation allowed, ");
break;
case 1:
sprintf((pbuf+strlen(pbuf)), "presentation restricted, ");
break;
case 2:
sprintf((pbuf+strlen(pbuf)), "number not available, ");
break;
case 3:
sprintf((pbuf+strlen(pbuf)), "reserved, ");
break;
}
switch(ind & 0x03)
{
case 0:
sprintf((pbuf+strlen(pbuf)), "screening user provided: not screened");
break;
case 1:
sprintf((pbuf+strlen(pbuf)), "screening user provided: verified & passed");
break;
case 2:
sprintf((pbuf+strlen(pbuf)), "screening user provided: verified & failed");
break;
case 3:
sprintf((pbuf+strlen(pbuf)), "screening network provided");
break;
}
}
sprintf((pbuf+strlen(pbuf)),")]");
i += j;
return(i);
}
/*---------------------------------------------------------------------------*
* decode and print HL comatibility
*---------------------------------------------------------------------------*/
int
p_q931high_compat(char *pbuf, unsigned char *buf)
{
int len = buf[1];
sprintf(pbuf+strlen(pbuf), " standard=");
switch ((buf[2] >> 5) & 0x03)
{
case 0: sprintf(pbuf+strlen(pbuf), "CCITT");
break;
case 1: sprintf(pbuf+strlen(pbuf), "unknown international standard");
break;
case 2: sprintf(pbuf+strlen(pbuf), "unknown national standard");
break;
case 3: sprintf(pbuf+strlen(pbuf), "local network standard");
}
len--;
sprintf(pbuf+strlen(pbuf), ", characteristics=");
switch (buf[3] & 0x7f)
{
case 0x01:
sprintf(pbuf+strlen(pbuf), "Telephony");
break;
case 0x04:
sprintf(pbuf+strlen(pbuf), "Fax Group 2/3");
break;
case 0x21:
sprintf(pbuf+strlen(pbuf), "Fax Group 4 Class I (F.184)");
break;
case 0x24:
sprintf(pbuf+strlen(pbuf), "Teletex basic/mixed (F.230) or Fax Group 4 Class II/III (F.184)");
break;
case 0x28:
sprintf(pbuf+strlen(pbuf), "Teletex basic/processable (F.220)");
break;
case 0x31:
sprintf(pbuf+strlen(pbuf), "Teletex basic mode (F.200)");
break;
case 0x32:
sprintf(pbuf+strlen(pbuf), "Videotex (F.300 and T.101)");
break;
case 0x35:
sprintf(pbuf+strlen(pbuf), "Telex (F.60)");
break;
case 0x38:
sprintf(pbuf+strlen(pbuf), "MHS (X.400 series)");
break;
case 0x41:
sprintf(pbuf+strlen(pbuf), "OSI application (X.200 series)");
break;
case 0x5e:
sprintf(pbuf+strlen(pbuf), "Maintenance");
break;
case 0x5f:
sprintf(pbuf+strlen(pbuf), "Management");
break;
case 0x7f:
sprintf(pbuf+strlen(pbuf), "reserved");
break;
default:
sprintf(pbuf+strlen(pbuf), "UNKNOWN (0x%02x)", buf[3]);
break;
}
len--;
if (!len)
{
sprintf(pbuf+strlen(pbuf), "]");
return 4;
}
sprintf(pbuf+strlen(pbuf), " of ");
switch (buf[4] & 0x7f)
{
case 0x01:
sprintf(pbuf+strlen(pbuf), "Telephony");
break;
case 0x04:
sprintf(pbuf+strlen(pbuf), "Fax Group 2/3");
break;
case 0x21:
sprintf(pbuf+strlen(pbuf), "Fax Group 4 Class I (F.184)");
break;
case 0x24:
sprintf(pbuf+strlen(pbuf), "Teletex basic/mixed (F.230) or Fax Group 4 Class II/III (F.184)");
break;
case 0x28:
sprintf(pbuf+strlen(pbuf), "Teletex basic/processable (F.220)");
break;
case 0x31:
sprintf(pbuf+strlen(pbuf), "Teletex basic mode (F.200)");
break;
case 0x32:
sprintf(pbuf+strlen(pbuf), "Videotex (F.300 and T.101)");
break;
case 0x35:
sprintf(pbuf+strlen(pbuf), "Telex (F.60)");
break;
case 0x38:
sprintf(pbuf+strlen(pbuf), "MHS (X.400 series)");
break;
case 0x41:
sprintf(pbuf+strlen(pbuf), "OSI application (X.200 series)");
break;
case 0x7f:
sprintf(pbuf+strlen(pbuf), "reserved");
break;
default:
sprintf(pbuf+strlen(pbuf), "UNKNOWN (0x%02x)", buf[3]);
break;
}
sprintf(pbuf+strlen(pbuf), "]");
return 5;
}
/*---------------------------------------------------------------------------*
* decode and print user-user IE
*---------------------------------------------------------------------------*/
int
p_q931user_user(char *pbuf, unsigned char *buf)
{
int j;
int len;
int i = 0;
int pd;
i++; /* index -> length */
len = buf[i];
i++; /* index -> protocoldiscriminator */
pd = buf[i];
switch(pd)
{
case 0:
sprintf((pbuf+strlen(pbuf)), "(pd=user-specific");
break;
case 1:
sprintf((pbuf+strlen(pbuf)), "(pd=OSI high-layer protocols");
break;
case 2:
sprintf((pbuf+strlen(pbuf)), "(pd=X.244");
break;
case 3:
sprintf((pbuf+strlen(pbuf)), "(pd=reserved for system management");
break;
case 4:
sprintf((pbuf+strlen(pbuf)), "(pd=IA5 characters");
break;
case 6:
sprintf((pbuf+strlen(pbuf)), "(pd=X.208/X.209 coded user info");
break;
case 7:
sprintf((pbuf+strlen(pbuf)), "(pd=V.120 rate adaption");
break;
case 8:
sprintf((pbuf+strlen(pbuf)), "(pd=Q.931/I.451 user network call control messages");
break;
default:
if(pd >= 0x10 && pd <= 0x3f)
sprintf((pbuf+strlen(pbuf)), "(pd=0x%x=reserved for other L3 protocols incl. X.25", pd);
else if(pd >= 0x40 && pd <= 0x47)
sprintf((pbuf+strlen(pbuf)), "(pd=0x%x=national use", pd);
else if(pd >= 0x48 && pd <= 0x4f)
sprintf((pbuf+strlen(pbuf)), "(pd=0x%x=reserved for ETSI", pd);
else if(pd >= 0x50 && pd <= 0xfe)
sprintf((pbuf+strlen(pbuf)), "(pd=0x%x=reserved for other L3 protocols incl. X.25", pd);
else
sprintf((pbuf+strlen(pbuf)), "(pd=0x%x=reserved", pd);
break;
}
i++;
len--;
sprintf((pbuf+strlen(pbuf)),": (");
for(j = 0; j < len; j++)
{
if(pd == 4)
sprintf((pbuf+strlen(pbuf)),"%c", buf[j+i]);
else
sprintf((pbuf+strlen(pbuf)),"0x%2x", buf[j+i]);
}
sprintf((pbuf+strlen(pbuf)),"))]");
i += j;
return(i);
}
/*---------------------------------------------------------------------------*
* decode and notification indicator IE (Q.932, p44)
*---------------------------------------------------------------------------*/
int
p_q931notification(char *pbuf, unsigned char *buf)
{
int j = 0;
int len;
int i = 0;
int nd;
i++; /* index -> length */
len = buf[i];
i++; /* index -> notification description */
nd = buf[i];
switch(nd)
{
case 0x80:
sprintf((pbuf+strlen(pbuf)), "0x%2x, user suspended", nd);
break;
case 0x81:
sprintf((pbuf+strlen(pbuf)), "0x%2x, user resumed", nd);
break;
case 0x82:
sprintf((pbuf+strlen(pbuf)), "0x%2x, bearer service changed", nd);
break;
case 0x83:
sprintf((pbuf+strlen(pbuf)), "0x%2x, BER coded information", nd);
break;
case 0xc2:
sprintf((pbuf+strlen(pbuf)), "0x%2x, conference established", nd);
break;
case 0xc3:
sprintf((pbuf+strlen(pbuf)), "0x%2x, conference disconnected", nd);
break;
case 0xc4:
sprintf((pbuf+strlen(pbuf)), "0x%2x, other party added", nd);
break;
case 0xc5:
sprintf((pbuf+strlen(pbuf)), "0x%2x, isolated", nd);
break;
case 0xc6:
sprintf((pbuf+strlen(pbuf)), "0x%2x, reattached", nd);
break;
case 0xc7:
sprintf((pbuf+strlen(pbuf)), "0x%2x, other party isolated", nd);
break;
case 0xc8:
sprintf((pbuf+strlen(pbuf)), "0x%2x, other party reattached", nd);
break;
case 0xc9:
sprintf((pbuf+strlen(pbuf)), "0x%2x, other party split", nd);
break;
case 0xca:
sprintf((pbuf+strlen(pbuf)), "0x%2x, other party disconnected", nd);
break;
case 0xcb:
sprintf((pbuf+strlen(pbuf)), "0x%2x, conference floating", nd);
break;
case 0xcc:
sprintf((pbuf+strlen(pbuf)), "0x%2x, conference disconnected, preemption", nd);
break;
case 0xcf:
sprintf((pbuf+strlen(pbuf)), "0x%2x, conference floating, server user preempted", nd);
break;
case 0xe0:
sprintf((pbuf+strlen(pbuf)), "0x%2x, call is a waiting call", nd);
break;
case 0xe8:
sprintf((pbuf+strlen(pbuf)), "0x%2x, diversion activated", nd);
break;
case 0xe9: /* ECT, EN 300 369-1 V1.2.4 p12) */
sprintf((pbuf+strlen(pbuf)), "0x%2x, call transferred, alerting", nd);
break;
case 0xea: /* ECT, EN 300 369-1 V1.2.4 p12) */
sprintf((pbuf+strlen(pbuf)), "0x%2x, call transferred, active", nd);
break;
case 0xee:
sprintf((pbuf+strlen(pbuf)), "0x%2x, reverse charging", nd);
break;
case 0xf9:
sprintf((pbuf+strlen(pbuf)), "0x%2x, remote hold", nd);
break;
case 0xfa:
sprintf((pbuf+strlen(pbuf)), "0x%2x, remote retrieval", nd);
break;
case 0xfb:
sprintf((pbuf+strlen(pbuf)), "0x%2x, call is diverting", nd);
break;
default:
sprintf((pbuf+strlen(pbuf)), "0x%2x, undefined", nd);
break;
}
i++;
len--;
if(len)
{
sprintf((pbuf+strlen(pbuf)),": (");
for(; j < len; j++)
{
if(nd == 4)
sprintf((pbuf+strlen(pbuf)),"%c", buf[j+i]);
else
sprintf((pbuf+strlen(pbuf)),"0x%2x", buf[j+i]);
}
sprintf((pbuf+strlen(pbuf)),")");
}
sprintf((pbuf+strlen(pbuf)),"]");
i += j;
return(i);
}
/*---------------------------------------------------------------------------*
* decode and print redirecting/redirection number
*---------------------------------------------------------------------------*/
int
p_q931redir(char *pbuf, unsigned char *buf)
{
int j;
int len;
int i = 0;
int tp;
int ind = 0;
int indflag = 0;
int reas = 0;
int reasflag = 0;
i++; /* index -> length */
len = buf[i];
i++; /* index -> type/plan */
tp = buf[i];
i++;
len--;
if(!(tp & 0x80))
{
ind = buf[i];
indflag = 1;
i++;
len--;
if(!(ind & 0x80))
{
reas = buf[i];
reasflag = 1;
i++;
len--;
}
}
for(j = 0; j < len; j++)
{
sprintf((pbuf+strlen(pbuf)),"%c", buf[j+i]);
}
switch((tp & 0x70) >> 4)
{
case 0:
sprintf((pbuf+strlen(pbuf)), " (type=unknown, ");
break;
case 1:
sprintf((pbuf+strlen(pbuf)), " (type=international, ");
break;
case 2:
sprintf((pbuf+strlen(pbuf)), " (type=national, ");
break;
case 3:
sprintf((pbuf+strlen(pbuf)), " (type=network specific, ");
break;
case 4:
sprintf((pbuf+strlen(pbuf)), " (type=subscriber, ");
break;
case 6:
sprintf((pbuf+strlen(pbuf)), " (type=abbreviated, ");
break;
default:
sprintf((pbuf+strlen(pbuf)), " (type=reserved (%d), ", ((tp & 0x70) >> 4));
break;
}
switch(tp & 0x0f)
{
case 0:
sprintf((pbuf+strlen(pbuf)), "plan=unknown");
break;
case 1:
sprintf((pbuf+strlen(pbuf)), "plan=ISDN");
break;
case 3:
sprintf((pbuf+strlen(pbuf)), "plan=Data");
break;
case 4:
sprintf((pbuf+strlen(pbuf)), "plan=Telex");
break;
case 8:
sprintf((pbuf+strlen(pbuf)), "plan=National");
break;
case 9:
sprintf((pbuf+strlen(pbuf)), "plan=private");
break;
default:
sprintf((pbuf+strlen(pbuf)), "plan=reserved (%d)", (tp & 0x0f));
break;
}
if(indflag)
{
sprintf((pbuf+strlen(pbuf)), ",\n ");
switch((ind & 0x60) >> 5)
{
case 0:
sprintf((pbuf+strlen(pbuf)), "presentation allowed");
break;
case 1:
sprintf((pbuf+strlen(pbuf)), "presentation restricted");
break;
case 2:
sprintf((pbuf+strlen(pbuf)), "number not available");
break;
case 3:
sprintf((pbuf+strlen(pbuf)), "reserved");
break;
}
}
if(reasflag)
{
sprintf((pbuf+strlen(pbuf)), ",\n ");
switch(reas & 0x0f)
{
case 0:
sprintf((pbuf+strlen(pbuf)), "reason for diversion: unknown");
break;
case 1:
sprintf((pbuf+strlen(pbuf)), "reason for diversion: call forwarding busy");
break;
case 2:
sprintf((pbuf+strlen(pbuf)), "reason for diversion: call forwarding unconditional");
break;
case 0xa:
sprintf((pbuf+strlen(pbuf)), "reason for diversion: called DTE");
break;
case 0xf:
sprintf((pbuf+strlen(pbuf)), "reason for diversion: call forwarding unconditional");
break;
default:
sprintf((pbuf+strlen(pbuf)), "reason for diversion: reserved (0x%2x)",reas & 0x0f);
break;
}
}
sprintf((pbuf+strlen(pbuf)),")]");
i += j;
return(i);
}
/* EOF */
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