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/*
* Scan and output information about DAHDI spans and ports.
*
* Written by Brandon Kruse <bkruse@digium.com>
* and Kevin P. Fleming <kpfleming@digium.com>
* Copyright (C) 2007 Digium, Inc.
*
* Based on zttool written by Mark Spencer <markster@digium.com>
*
* All rights reserved.
*
*/
/*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2 as published by the
* Free Software Foundation. See the LICENSE file included with
* this program for more details.
*/
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <errno.h>
#include <dahdi/user.h>
#include "dahdi_tools_version.h"
static inline int is_digital_span(struct dahdi_spaninfo *s)
{
return (s->linecompat > 0);
}
static int get_basechan(unsigned int spanno)
{
int res;
int basechan;
char filename[256];
FILE *fp;
snprintf(filename, sizeof(filename),
"/sys/bus/dahdi_spans/devices/span-%u/basechan", spanno);
fp = fopen(filename, "r");
if (NULL == fp) {
return -1;
}
res = fscanf(fp, "%d", &basechan);
fclose(fp);
if (EOF == res) {
return -1;
}
return basechan;
}
int main(int argc, char *argv[])
{
int ctl;
int x, y, z;
struct dahdi_params params;
unsigned int basechan = 1;
int direct_basechan;
struct dahdi_spaninfo s;
char buf[100];
char alarms[50];
int filter_count = 0;
int span_filter[DAHDI_MAX_SPANS];
if ((ctl = open("/dev/dahdi/ctl", O_RDWR)) < 0) {
fprintf(stderr, "Unable to open /dev/dahdi/ctl: %s\n", strerror(errno));
exit(1);
}
for (x = 1; x < argc && filter_count < DAHDI_MAX_SPANS; x++) {
int s = atoi(argv[x]);
if (s > 0) {
span_filter[filter_count++] = s;
}
}
for (x = 1; x < DAHDI_MAX_SPANS; x++) {
memset(&s, 0, sizeof(s));
s.spanno = x;
if (ioctl(ctl, DAHDI_SPANSTAT, &s))
continue;
if (filter_count > 0) {
int match = 0;
for (z = 0; z < filter_count; z++) {
if (x == span_filter[z]) {
match = 1;
break;
}
}
if (!match) {
basechan += s.totalchans;
continue;
}
}
/* DAHDI-Linux 2.5.x exposes the base channel in sysfs. Let's
* try to look for it there in case there are holes in the span
* numbering. */
direct_basechan = get_basechan(x);
if (-1 != direct_basechan) {
basechan = direct_basechan;
}
alarms[0] = '\0';
if (s.alarms) {
if (s.alarms & DAHDI_ALARM_BLUE)
strcat(alarms,"BLU/");
if (s.alarms & DAHDI_ALARM_YELLOW)
strcat(alarms, "YEL/");
if (s.alarms & DAHDI_ALARM_RED) {
strcat(alarms, "RED/");
/* Extended alarm feature test. Allows compilation with
* versions of dahdi-linux prior to 2.4
*/
#ifdef DAHDI_ALARM_LFA
if (s.alarms & DAHDI_ALARM_LFA)
strcat(alarms, "LFA/");
#endif /* ifdef DAHDI_ALARM_LFA */
}
if (s.alarms & DAHDI_ALARM_LOOPBACK)
strcat(alarms,"LB/");
if (s.alarms & DAHDI_ALARM_RECOVER)
strcat(alarms,"REC/");
if (s.alarms & DAHDI_ALARM_NOTOPEN)
strcat(alarms, "NOP/");
if (!strlen(alarms))
strcat(alarms, "UUU/");
if (strlen(alarms)) {
/* Strip trailing / */
alarms[strlen(alarms)-1]='\0';
}
} else {
if (s.numchans) {
#ifdef DAHDI_ALARM_LFA
/* If we continuously receive framing errors
* but our span is still in service, and we
* are configured for E1 & crc4. We've lost
* crc4-multiframe alignment
*/
if ((s.linecompat & DAHDI_CONFIG_CRC4) &&
(s.fecount > 0)) {
struct dahdi_spaninfo t;
memset(&t, 0, sizeof(t));
t.spanno = x;
sleep(1);
if (ioctl(ctl, DAHDI_SPANSTAT, &t))
continue;
/* Test fecount at two separate time
* intervals, if they differ, throw LMFA
*/
if ((t.fecount > s.fecount) &&
!t.alarms) {
strcat(alarms, "LMFA/");
}
}
#endif /* ifdef DAHDI_ALARM_LFA */
strcat(alarms, "OK");
} else {
strcpy(alarms, "UNCONFIGURED");
}
}
fprintf(stdout, "[%d]\n", x);
fprintf(stdout, "active=yes\n");
fprintf(stdout, "alarms=%s\n", alarms);
fprintf(stdout, "description=%s\n", s.desc);
fprintf(stdout, "name=%s\n", s.name);
fprintf(stdout, "manufacturer=%s\n", s.manufacturer);
fprintf(stdout, "devicetype=%s\n", s.devicetype);
fprintf(stdout, "location=%s\n", s.location);
fprintf(stdout, "basechan=%d\n", basechan);
fprintf(stdout, "totchans=%d\n", s.totalchans);
fprintf(stdout, "irq=%d\n", s.irq);
y = basechan;
memset(&params, 0, sizeof(params));
params.channo = y;
if (ioctl(ctl, DAHDI_GET_PARAMS, &params)) {
basechan += s.totalchans;
continue;
}
if (is_digital_span(&s)) {
/* this is a digital span */
fprintf(stdout, "type=digital-%s\n", s.spantype);
fprintf(stdout, "syncsrc=%d\n", s.syncsrc);
fprintf(stdout, "lbo=%s\n", s.lboname);
fprintf(stdout, "coding_opts=");
buf[0] = '\0';
if (s.linecompat & DAHDI_CONFIG_B8ZS) strcat(buf, "B8ZS,");
if (s.linecompat & DAHDI_CONFIG_AMI) strcat(buf, "AMI,");
if (s.linecompat & DAHDI_CONFIG_HDB3) strcat(buf, "HDB3,");
buf[strlen(buf) - 1] = '\0';
fprintf(stdout, "%s\n", buf);
fprintf(stdout, "framing_opts=");
buf[0] = '\0';
if (s.linecompat & DAHDI_CONFIG_ESF) strcat(buf, "ESF,");
if (s.linecompat & DAHDI_CONFIG_D4) strcat(buf, "D4,");
if (s.linecompat & DAHDI_CONFIG_CCS) strcat(buf, "CCS,");
if (s.linecompat & DAHDI_CONFIG_CRC4) strcat(buf, "CRC4,");
buf[strlen(buf) - 1] = '\0';
fprintf(stdout, "%s\n", buf);
fprintf(stdout, "coding=");
if (s.lineconfig & DAHDI_CONFIG_B8ZS) fprintf(stdout, "B8ZS");
else if (s.lineconfig & DAHDI_CONFIG_AMI) fprintf(stdout, "AMI");
else if (s.lineconfig & DAHDI_CONFIG_HDB3) fprintf(stdout, "HDB3");
fprintf(stdout, "\n");
fprintf(stdout, "framing=");
if (s.lineconfig & DAHDI_CONFIG_ESF) fprintf(stdout, "ESF");
else if (s.lineconfig & DAHDI_CONFIG_D4) fprintf(stdout, "D4");
else if (s.lineconfig & DAHDI_CONFIG_CCS) fprintf(stdout, "CCS");
else fprintf(stdout, "CAS");
if (s.lineconfig & DAHDI_CONFIG_CRC4) fprintf(stdout, "/CRC4");
fprintf(stdout, "\n");
} else {
/* this is an analog span */
fprintf(stdout, "type=analog\n");
for (y = basechan; y < (basechan + s.totalchans); y++) {
memset(&params, 0, sizeof(params));
params.channo = y;
if (ioctl(ctl, DAHDI_GET_PARAMS, &params)) {
fprintf(stdout, "port=%d,unknown\n", y);
continue;
};
fprintf(stdout, "port=%d,", y);
switch (params.sigcap & (__DAHDI_SIG_FXO | __DAHDI_SIG_FXS)) {
case __DAHDI_SIG_FXO:
fprintf(stdout, "FXS");
break;
case __DAHDI_SIG_FXS:
fprintf(stdout, "FXO");
break;
default:
fprintf(stdout, "none");
}
if (params.sigcap & DAHDI_SIG_BROKEN)
fprintf(stdout, " FAILED");
fprintf(stdout, "\n");
}
}
basechan += s.totalchans;
}
exit(0);
}