19c749625f
ISDN4BSD is the work of our brand-new comitter: Hellmuth Michaelis, who has done a tremendous amount of work to bring us this far. There are still some outstanding issues and files to bring into the tree, and for now it will be needed to pick up all the extra docs from the isdn4bsd release. It is probably also a very good idea to subscribe to the isdn@freebsd.org mailing list before you try this out. These files correspond to release "beta Version 0.70.00 / December 1998" from Hellmuth.
708 lines
16 KiB
C
708 lines
16 KiB
C
/*
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* Copyright (c) 1997, 1998 Hellmuth Michaelis. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*---------------------------------------------------------------------------
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*
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* i4b daemon - main program entry
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* -------------------------------
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*
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* $Id: main.c,v 1.29 1998/12/05 18:03:26 hm Exp $
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*
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* last edit-date: [Sat Dec 5 18:10:38 1998]
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*
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*---------------------------------------------------------------------------*/
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#ifdef I4B_EXTERNAL_MONITOR
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#include "monitor.h"
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#endif
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#define MAIN
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#include "isdnd.h"
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#undef MAIN
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#ifdef I4B_EXTERNAL_MONITOR
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#ifdef I4B_NOTCPIP_MONITOR
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/* monitor via local socket */
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static void mloop(int sockfd);
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#else /* I4B_NOTCPIP_MONITOR */
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/* monitor via local and tcp/ip socket */
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static void mloop(int localsock, int remotesock);
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#endif /* I4B_NOTCPIP_MONITOR */
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#else /* I4B_EXTERNAL_MONITOR */
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/* no monitoring at all */
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static void mloop();
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#endif /* I4B_EXTERNAL_MONITOR */
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#ifdef USE_CURSES
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static void kbdrdhdl(void);
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#endif
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static void isdnrdhdl(void);
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static void usage(void);
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#define MSG_BUF_SIZ 1024 /* message buffer size */
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/*---------------------------------------------------------------------------*
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* usage display and exit
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*---------------------------------------------------------------------------*/
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static void
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usage(void)
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{
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fprintf(stderr, "\n");
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fprintf(stderr, "isdnd - i4b ISDN manager daemon, version %02d.%02d.%d, %s %s\n", VERSION, REL, STEP, __DATE__, __TIME__);
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#ifdef DEBUG
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fprintf(stderr, " usage: isdnd [-b] [-c file] [-d level] [-F]\n");
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#else
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fprintf(stderr, " usage: isdnd [-b] [-c file] [-F]\n");
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#endif
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fprintf(stderr, " [-f [-r dev] [-t termtype]] [-u time]\n");
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fprintf(stderr, " [-l] [-L file] [-s facility] [-m]\n");
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fprintf(stderr, " -b audible bell in fullscreen mode at connect/disconnect\n");
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fprintf(stderr, " -c <filename> configuration file name (def: %s)\n", CONFIG_FILE_DEF);
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#ifdef DEBUG
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fprintf(stderr, " -d <level> set debug flag bits:\n");
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fprintf(stderr, " general = 0x%04x, rates = 0x%04x, timing = 0x%04x\n", DL_MSG, DL_RATES, DL_TIME);
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fprintf(stderr, " state = 0x%04x, retry = 0x%04x, dial = 0x%04x\n", DL_STATE, DL_RCVRY, DL_DIAL);
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fprintf(stderr, " process = 0x%04x, kernio = 0x%04x ctrlstat = 0x%04x\n", DL_PROC, DL_DRVR, DL_CNST);
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fprintf(stderr, " -dn no debug output on fullscreen display\n");
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#endif
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fprintf(stderr, " -f fullscreen status display\n");
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fprintf(stderr, " -F do not become a daemon process\n");
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fprintf(stderr, " -l use a logfile instead of syslog\n");
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fprintf(stderr, " -L <file> use file instead of %s for logging\n", LOG_FILE_DEF);
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fprintf(stderr, " -P pretty print real config to stdout and exit\n");
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fprintf(stderr, " -r <device> redirect output to other device (for -f)\n");
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fprintf(stderr, " -s <facility> use facility instead of %d for syslog logging\n", LOG_LOCAL0 >> 3);
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fprintf(stderr, " -t <termtype> terminal type of redirected screen (for -f)\n");
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fprintf(stderr, " -u <time> length of a charging unit in seconds\n");
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fprintf(stderr, " -m inhibit network/local monitoring\n");
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fprintf(stderr, "\n");
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exit(1);
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}
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/*---------------------------------------------------------------------------*
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* program entry
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*---------------------------------------------------------------------------*/
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int
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main(int argc, char **argv)
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{
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int i;
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msg_vr_req_t mvr;
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#ifdef I4B_EXTERNAL_MONITOR
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int sockfd = -1; /* local monitor socket */
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#ifndef I4B_NOTCPIP_MONITOR
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int remotesockfd = -1; /* tcp/ip monitor socket */
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#endif
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#endif
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while ((i = getopt(argc, argv, "bmc:d:fFlL:Pr:s:t:u:?")) != EOF)
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{
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switch (i)
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{
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case 'b':
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do_bell = 1;
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break;
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case 'm':
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inhibit_monitor = 1;
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break;
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case 'c':
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configfile = optarg;
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break;
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#ifdef DEBUG
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case 'd':
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if(*optarg == 'n')
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debug_noscreen = 1;
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else if((sscanf(optarg, "%i", &debug_flags)) == 1)
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do_debug = 1;
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else
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usage();
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break;
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#endif
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case 'f':
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do_fullscreen = 1;
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do_fork = 0;
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#ifndef USE_CURSES
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fprintf(stderr, "Sorry, no fullscreen mode available - daemon compiled without USE_CURSES\n");
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exit(1);
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#endif
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break;
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case 'F':
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do_fork = 0;
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break;
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case 'l':
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uselogfile = 1;
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break;
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case 'L':
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strcpy(logfile, optarg);
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break;
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case 'P':
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do_print = 1;
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break;
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case 'r':
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rdev = optarg;
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do_rdev = 1;
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break;
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case 's':
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if(isdigit(*optarg))
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{
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int facility;
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logfacility = strtoul(optarg, NULL, 10);
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facility = logfacility << 3;
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if((facility < LOG_KERN) ||
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(facility > LOG_FTP && facility < LOG_LOCAL0) ||
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(facility > LOG_LOCAL7))
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{
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fprintf(stderr, "Error, option -s has invalid logging facility %d", logfacility);
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usage();
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}
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logfacility = facility;
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}
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else
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{
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fprintf(stderr, "Error: option -s requires a numeric argument!\n");
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usage();
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}
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break;
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case 't':
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ttype = optarg;
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do_ttytype = 1;
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break;
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case 'u':
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if(isdigit(*optarg))
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{
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unit_length = strtoul(optarg, NULL, 10);
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if(unit_length < ULSRC_CMDLMIN)
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unit_length = ULSRC_CMDLMIN;
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else if(unit_length > ULSRC_CMDLMAX)
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unit_length = ULSRC_CMDLMAX;
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got_unitlen = 1;
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}
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else
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{
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fprintf(stderr, "Error: option -T requires a numeric argument!\n");
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usage();
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}
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break;
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case '?':
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default:
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usage();
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break;
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}
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}
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#ifdef DEBUG
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if(!do_debug)
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debug_noscreen = 0;
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#endif
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if(!do_print)
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{
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umask(UMASK); /* set our umask ... */
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init_log(); /* initialize the logging subsystem */
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}
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check_pid(); /* check if we are already running */
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if(!do_print)
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{
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if(do_fork || (do_fullscreen && do_rdev)) /* daemon mode ? */
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daemonize();
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write_pid(); /* write our pid to file */
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/* set signal handler(s) */
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signal(SIGCHLD, sigchild_handler); /* process handling */
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signal(SIGHUP, rereadconfig); /* reread configuration */
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signal(SIGUSR1, reopenfiles); /* reopen acct/log files*/
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signal(SIGPIPE, SIG_IGN); /* handled manually */
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signal(SIGINT, do_exit); /* clean up on SIGINT */
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signal(SIGTERM, do_exit); /* clean up on SIGTERM */
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signal(SIGQUIT, do_exit); /* clean up on SIGQUIT */
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}
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/* open isdn device */
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if((isdnfd = open(I4BDEVICE, O_RDWR)) < 0)
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{
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log(LL_ERR, "main: cannot open %s: %s", I4BDEVICE, strerror(errno));
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exit(1);
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}
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/* check kernel and userland have same version/release numbers */
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if((ioctl(isdnfd, I4B_VR_REQ, &mvr)) < 0)
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{
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log(LL_ERR, "main: ioctl I4B_VR_REQ failed: %s", strerror(errno));
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do_exit(1);
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}
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if(mvr.version != VERSION)
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{
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log(LL_ERR, "main: version mismatch, kernel %d, daemon %d", mvr.version, VERSION);
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do_exit(1);
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}
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if(mvr.release != REL)
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{
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log(LL_ERR, "main: release mismatch, kernel %d, daemon %d", mvr.release, REL);
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do_exit(1);
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}
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if(mvr.step != STEP)
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{
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log(LL_ERR, "main: step mismatch, kernel %d, daemon %d", mvr.step, STEP);
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do_exit(1);
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}
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/* init controller state array */
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init_controller();
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/* read runtime configuration file and configure ourselves */
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configure(configfile, 0);
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if(config_error_flag)
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{
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log(LL_ERR, "there were %d error(s) in the configuration file, terminating!", config_error_flag);
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exit(1);
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}
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/* handle the rates stuff */
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if((i = readrates(ratesfile)) == ERROR)
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{
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if(rate_error != NULL)
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log(LL_ERR, "%s", rate_error);
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exit(1);
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}
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if(i == GOOD)
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{
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got_rate = 1; /* flag, ratesfile read and ok */
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DBGL(DL_MSG, (log(LL_DBG, "ratesfile %s read successfully", ratesfile)));
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}
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else
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{
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if(rate_error != NULL)
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log(LL_WRN, "%s", rate_error);
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}
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/* if writing accounting info, open file, set unbuffered */
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if(useacctfile)
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{
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if((acctfp = fopen(acctfile, "a")) == NULL)
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{
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log(LL_ERR, "ERROR, can't open acctfile %s for writing, terminating!", acctfile);
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exit(1);
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}
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setvbuf(acctfp, (char *)NULL, _IONBF, 0);
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}
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/* initialize alias processing */
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if(aliasing)
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init_alias(aliasfile);
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/* init remote monitoring */
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#ifdef I4B_EXTERNAL_MONITOR
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if(do_monitor)
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{
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monitor_init();
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sockfd = monitor_create_local_socket();
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#ifndef I4B_NOTCPIP_MONITOR
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remotesockfd = monitor_create_remote_socket(monitorport);
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#endif
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}
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#endif
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/* in case fullscreendisplay, initialize */
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#ifdef USE_CURSES
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if(do_fullscreen)
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{
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init_screen();
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}
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#endif
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/* init realtime priority */
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#ifdef USE_RTPRIO
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if(rt_prio != RTPRIO_NOTUSED)
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{
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struct rtprio rtp;
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rtp.type = RTP_PRIO_REALTIME;
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rtp.prio = rt_prio;
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if((rtprio(RTP_SET, getpid(), &rtp)) == -1)
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{
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log(LL_ERR, "rtprio failed: %s", strerror(errno));
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do_exit(1);
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}
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}
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#endif
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srandom(580403); /* init random number gen */
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mloop( /* enter loop of no return .. */
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#ifdef I4B_EXTERNAL_MONITOR
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sockfd
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#ifndef I4B_NOTCPIP_MONITOR
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, remotesockfd
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#endif
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#endif
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);
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do_exit(0);
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return(0);
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}
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/*---------------------------------------------------------------------------*
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* program exit
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*---------------------------------------------------------------------------*/
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void
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do_exit(int exitval)
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{
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close_allactive();
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unlink(PIDFILE);
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log(LL_DMN, "daemon terminating, exitval = %d", exitval);
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#ifdef USE_CURSES
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if(do_fullscreen)
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endwin();
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#endif
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#ifdef I4B_EXTERNAL_MONITOR
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monitor_exit();
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#endif
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exit(exitval);
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}
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/*---------------------------------------------------------------------------*
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* main loop
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*---------------------------------------------------------------------------*/
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static void
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mloop(
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#ifdef I4B_EXTERNAL_MONITOR
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int localmonitor
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#ifndef I4B_NOTCPIP_MONITOR
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, int remotemonitor
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#endif
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#endif
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)
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{
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fd_set set;
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struct timeval timeout;
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int ret;
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int high_selfd;
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/* go into loop */
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log(LL_DMN, "daemon started (pid = %d)", getpid());
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for(;;)
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{
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FD_ZERO(&set);
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#ifdef USE_CURSES
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if(do_fullscreen)
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FD_SET(fileno(stdin), &set);
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#endif
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FD_SET(isdnfd, &set);
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high_selfd = isdnfd;
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#ifdef I4B_EXTERNAL_MONITOR
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if(do_monitor)
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{
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if (localmonitor != -1) {
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/* always watch for new connections */
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FD_SET(localmonitor, &set);
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if(localmonitor > high_selfd)
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high_selfd = localmonitor;
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}
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#ifndef I4B_NOTCPIP_MONITOR
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if (remotemonitor != -1) {
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FD_SET(remotemonitor, &set);
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if(remotemonitor > high_selfd)
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high_selfd = remotemonitor;
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}
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#endif
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/* if there are client connections, let monitor module
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* enter them into the fdset */
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if(accepted)
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{
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monitor_prepselect(&set, &high_selfd);
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}
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}
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#endif
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timeout.tv_sec = 1;
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timeout.tv_usec = 0;
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ret = select(high_selfd + 1, &set, NULL, NULL, &timeout);
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if(ret > 0)
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{
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if(FD_ISSET(isdnfd, &set))
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isdnrdhdl();
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#ifdef USE_CURSES
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if(FD_ISSET(fileno(stdin), &set))
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kbdrdhdl();
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#endif
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#ifdef I4B_EXTERNAL_MONITOR
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if(do_monitor)
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{
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if(localmonitor != -1 && FD_ISSET(localmonitor, &set))
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monitor_handle_connect(localmonitor, 1);
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#ifndef I4B_NOTCPIP_MONITOR
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if(remotemonitor != -1 && FD_ISSET(remotemonitor, &set))
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monitor_handle_connect(remotemonitor, 0);
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#endif
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if(accepted)
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monitor_handle_input(&set);
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}
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#endif
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}
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else if(ret == -1)
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{
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if(errno != EINTR)
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log(LL_WRN, "ERROR, select error on isdn device, errno = %d!", errno);
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}
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/* handle timeout and recovery */
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handle_recovery();
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}
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}
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#ifdef USE_CURSES
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/*---------------------------------------------------------------------------*
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* data from keyboard available, read and process it
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*---------------------------------------------------------------------------*/
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static void
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kbdrdhdl(void)
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{
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int ch = getch();
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switch(ch)
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{
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case 0x0c: /* control L */
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wrefresh(curscr);
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break;
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case '\n':
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case '\r':
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do_menu();
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break;
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}
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}
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#endif
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/*---------------------------------------------------------------------------*
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* data from /dev/isdn available, read and process them
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*---------------------------------------------------------------------------*/
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static void
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isdnrdhdl(void)
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{
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static unsigned char msg_rd_buf[MSG_BUF_SIZ];
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msg_hdr_t *hp = (msg_hdr_t *)&msg_rd_buf[0];
|
|
|
|
register int len;
|
|
|
|
if((len = read(isdnfd, msg_rd_buf, MSG_BUF_SIZ)) > 0)
|
|
{
|
|
switch(hp->type)
|
|
{
|
|
case MSG_CONNECT_IND:
|
|
msg_connect_ind((msg_connect_ind_t *)msg_rd_buf);
|
|
break;
|
|
|
|
case MSG_CONNECT_ACTIVE_IND:
|
|
msg_connect_active_ind((msg_connect_active_ind_t *)msg_rd_buf);
|
|
break;
|
|
|
|
case MSG_DISCONNECT_IND:
|
|
msg_disconnect_ind((msg_disconnect_ind_t *)msg_rd_buf);
|
|
break;
|
|
|
|
case MSG_DIALOUT_IND:
|
|
msg_dialout((msg_dialout_ind_t *)msg_rd_buf);
|
|
break;
|
|
|
|
case MSG_ACCT_IND:
|
|
msg_accounting((msg_accounting_ind_t *)msg_rd_buf);
|
|
break;
|
|
|
|
case MSG_IDLE_TIMEOUT_IND:
|
|
msg_idle_timeout_ind((msg_idle_timeout_ind_t *)msg_rd_buf);
|
|
break;
|
|
|
|
case MSG_CHARGING_IND:
|
|
msg_charging_ind((msg_charging_ind_t *)msg_rd_buf);
|
|
break;
|
|
|
|
case MSG_PROCEEDING_IND:
|
|
msg_proceeding_ind((msg_proceeding_ind_t *)msg_rd_buf);
|
|
break;
|
|
|
|
case MSG_ALERT_IND:
|
|
msg_alert_ind((msg_alert_ind_t *)msg_rd_buf);
|
|
break;
|
|
|
|
case MSG_DRVRDISC_REQ:
|
|
msg_drvrdisc_req((msg_drvrdisc_req_t *)msg_rd_buf);
|
|
break;
|
|
|
|
case MSG_L12STAT_IND:
|
|
msg_l12stat_ind((msg_l12stat_ind_t *)msg_rd_buf);
|
|
break;
|
|
|
|
case MSG_TEIASG_IND:
|
|
msg_teiasg_ind((msg_teiasg_ind_t *)msg_rd_buf);
|
|
break;
|
|
|
|
case MSG_PDEACT_IND:
|
|
msg_pdeact_ind((msg_pdeact_ind_t *)msg_rd_buf);
|
|
break;
|
|
|
|
case MSG_NEGCOMP_IND:
|
|
msg_negcomplete_ind((msg_negcomplete_ind_t *)msg_rd_buf);
|
|
break;
|
|
|
|
case MSG_IFSTATE_CHANGED_IND:
|
|
msg_ifstatechg_ind((msg_ifstatechg_ind_t *)msg_rd_buf);
|
|
break;
|
|
|
|
default:
|
|
log(LL_WRN, "ERROR, unknown message received from /dev/isdn (0x%x)", msg_rd_buf[0]);
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
log(LL_WRN, "ERROR, read error on isdn device, errno = %d, length = %d", errno, len);
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* re-read the config file on SIGHUP or menu command
|
|
*---------------------------------------------------------------------------*/
|
|
void
|
|
rereadconfig(int dummy)
|
|
{
|
|
extern int entrycount;
|
|
|
|
log(LL_DMN, "re-reading configuration file");
|
|
|
|
close_allactive();
|
|
|
|
entrycount = -1;
|
|
nentries = 0;
|
|
|
|
/* read runtime configuration file and configure ourselves */
|
|
|
|
configure(configfile, 1);
|
|
|
|
if(config_error_flag)
|
|
{
|
|
log(LL_ERR, "there were %d error(s) in the configuration file, terminating!", config_error_flag);
|
|
unlink(PIDFILE);
|
|
exit(1);
|
|
}
|
|
|
|
if(aliasing)
|
|
{
|
|
/* reread alias database */
|
|
free_aliases();
|
|
init_alias(aliasfile);
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* re-open the log/acct files on SIGUSR1
|
|
*---------------------------------------------------------------------------*/
|
|
void
|
|
reopenfiles(int dummy)
|
|
{
|
|
if(useacctfile)
|
|
{
|
|
fflush(acctfp);
|
|
fclose(acctfp);
|
|
|
|
if((acctfp = fopen(acctfile, "a")) == NULL)
|
|
{
|
|
log(LL_ERR, "ERROR, can't open acctfile %s for writing, terminating!", acctfile);
|
|
exit(1);
|
|
}
|
|
setvbuf(acctfp, (char *)NULL, _IONBF, 0);
|
|
}
|
|
|
|
if(uselogfile)
|
|
{
|
|
finish_log();
|
|
|
|
if((logfp = fopen(logfile, "a")) == NULL)
|
|
{
|
|
fprintf(stderr, "ERROR, cannot open logfile %s: %s\n",
|
|
logfile, strerror(errno));
|
|
exit(1);
|
|
}
|
|
|
|
/* set unbuffered operation */
|
|
|
|
setvbuf(logfp, (char *)NULL, _IONBF, 0);
|
|
}
|
|
}
|
|
|
|
/* EOF */
|