diff options
Diffstat (limited to 'pptpd-1.3.3/pptpd.c')
| -rw-r--r-- | pptpd-1.3.3/pptpd.c | 829 |
1 files changed, 0 insertions, 829 deletions
diff --git a/pptpd-1.3.3/pptpd.c b/pptpd-1.3.3/pptpd.c deleted file mode 100644 index b6d2b6a..0000000 --- a/pptpd-1.3.3/pptpd.c +++ /dev/null @@ -1,829 +0,0 @@ -/* - * pptpd.c - * - * Grabs any command line argument and processes any further options in - * the pptpd config file, before throwing over to pptpmanager.c. - * - * $Id: pptpd.c,v 1.18 2006/09/04 23:17:25 quozl Exp $ - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#ifdef __linux__ -#define _GNU_SOURCE 1 /* strdup() prototype, broken arpa/inet.h */ -#endif - -#ifdef __svr4__ -#define __EXTENSIONS__ 1 /* strdup() prototype */ -#endif - -#ifdef __sgi__ -#define _XOPEN_SOURCE 500 /* strdup() prototype */ -#endif - -#include "our_syslog.h" -#include "our_getopt.h" - -#include <fcntl.h> -#include <netdb.h> -#include <signal.h> -#include <stdio.h> -#include <string.h> -#include <stdlib.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <arpa/inet.h> -#include <sys/wait.h> -#include <sys/stat.h> -#include <unistd.h> - -#include "configfile.h" -#include "defaults.h" -#include "compat.h" -#include "pptpmanager.h" - -#ifdef CONFIG_NETtel -#include <linux/ledman.h> -#endif - -/* command line arg variables */ -char *ppp_binary = NULL; -char *pppdoptstr = NULL; -char *speedstr = NULL; -char *bindaddr = NULL; -#ifdef BCRELAY -char *bcrelay = NULL; -#endif -int pptp_debug = 0; -int pptp_noipparam = 0; -int pptp_logwtmp = 0; -int pptp_delegate = 0; - -int pptp_stimeout = STIMEOUT_DEFAULT; -int pptp_ptimeout = PTIMEOUT_DEFAULT; - -int pptp_connections = CONNECTIONS_DEFAULT; - -int keep_connections=0; - -/* Local prototypes */ -static void processIPStr(int type, char *ipstr); - -#ifndef HAVE_DAEMON -static void my_daemon(int argc, char **argv); -#endif - -static void log_pid(char *pid_file); -static char *lookup(char *); - -#ifdef BCRELAY -static void launch_bcrelay(); -static pid_t bcrelayfork; -#endif - -static void showversion() -{ - printf("accel-pptpd v%s ", VERSION); - printf("compiled for pppd-%s, linux-%s\n",PPPD_VERSION,KERNELVERSION); -} -static void showusage(char *prog) -{ - showversion(); - printf("Usage: pptpd [options], where options are:\n\n"); -#ifdef BCRELAY - printf(" [-b] [--bcrelay if] Use broadcast relay for broadcasts comming from.\n"); - printf(" the specified interface (default is eth1).\n"); -#endif - printf(" [-c] [--conf file] Specifies the config file to read default\n"); - printf(" settings from (default is %s).\n", PPTPD_CONFIG_FILE_DEFAULT); - printf(" [-d] [--debug] Turns on debugging (to syslog).\n"); - printf(" [-e] [--ppp file] Use alternate pppd binary, default %s.\n", PPP_BINARY); - printf(" [-f] [--fg] Run in foreground.\n"); - printf(" [-h] [--help] Displays this help message.\n"); - printf(" [-i] [--noipparam] Suppress the passing of the client's IP address\n"); - printf(" to PPP, which is done by default otherwise.\n"); - printf(" [-l] [--listen x.x.x.x] Specifies IP of local interface to listen to.\n"); -#if !defined(BSDUSER_PPP) - printf(" [-o] [--option file] Specifies the PPP options file to use\n"); - printf(" (default is /etc/ppp/options).\n"); -#endif - printf(" [-p] [--pidfile file] Specifies the file to write the process ID to\n"); - printf(" (default is /var/run/pptpd.pid).\n"); -#if !defined(BSDUSER_PPP) - printf(" [-s] [--speed baud] Specifies the baud speed for the PPP daemon\n"); - printf(" (default is 115200).\n"); -#endif - printf(" [-t] [--stimeout seconds] Specifies the timeout for the first packet. This is a DOS protection\n"); - printf(" (default is 10).\n"); - printf(" [-T] [--ptimeout msec] Specifies the maximum timeout for the packet.\n"); - printf(" (default is 1000).\n"); - printf(" [-v] [--version] Displays the pptpd version number.\n"); - printf(" [-w] [--logwtmp] Update wtmp as users login.\n"); - printf(" [-C] [--connections n] Limit on number of connections.\n"); - printf(" [-D] [--delegate] Delegate IP allocation to pppd.\n"); - printf(" [-k] [--keep] Keep connections after exit.\n"); - printf(" (default do not keep).\n"); - - printf("\n\nLogs and debugging go to syslog as DAEMON."); - - printf("\n\nCommand line options will override any default settings and any settings\n"); - printf("specified in the config file (default config file: %s).\n\n", PPTPD_CONFIG_FILE_DEFAULT); -} - - - -int main(int argc, char **argv) -{ - /* command line options */ - int c; - - /* function-local options */ - int foreground = FALSE; - char *pid_file = NULL; - - /* config file */ - char *configFile = NULL; - - /* config file parsing temp strings */ - char tmp[MAX_CONFIG_STRING_SIZE], *tmpstr; - - /* open a connection to the syslog daemon */ - openlog("pptpd", LOG_PID, PPTP_FACILITY); - syslog(LOG_ERR, "MGR: Config file not found!"); - - /* process command line options */ - while (1) { - int option_index = 0; -#ifdef BCRELAY - char *optstring = "b:c:de:fhil:o:p:s:t:T:vwC:Dk"; -#else - char *optstring = "c:de:fhil:o:p:s:t:T:vwC:Dk"; -#endif - - static struct option long_options[] = - { -#ifdef BCRELAY - {"bcrelay", 1, 0, 0}, -#endif - {"conf", 1, 0, 'c'}, - {"debug", 0, 0, 'd'}, - {"ppp", 1, 0, 'e'}, - {"fg", 0, 0, 'f'}, - {"help", 0, 0, 'h'}, - {"noipparam", 0, 0, 'i'}, - {"listen", 1, 0, 'l'}, - {"option", 1, 0, 'o'}, - {"pidfile", 1, 0, 'p'}, - {"speed", 1, 0, 's'}, - {"stimeout", 1, 0, 't'}, - {"ptimeout", 1, 0, 'T'}, - {"version", 0, 0, 'v'}, - {"logwtmp", 0, 0, 'w'}, - {"connections", 1, 0, 'C'}, - {"delegate", 0, 0, 'D'}, - {"keep", 0, 0, 'k'}, - {0, 0, 0, 0} - }; - - c = getopt_long(argc, argv, optstring, long_options, &option_index); - if (c == -1) - break; - /* convert long options to short form */ - if (c == 0) -#ifdef BCRELAY - c = "bcdefhilopstvwCDk"[option_index]; -#else - c = "cdefhilopstvwCDk"[option_index]; -#endif - switch (c) { -#ifdef BCRELAY - case 'b': /* --bcrelay */ - if (bcrelay) free(bcrelay); - bcrelay = strdup(optarg); - break; -#endif - - case 'l': /* --listen */ - tmpstr = lookup(optarg); - if (!tmpstr) { - syslog(LOG_ERR, "MGR: Invalid listening address: %s!", optarg); - return 1; - } - if (bindaddr) free(bindaddr); - bindaddr = strdup(tmpstr); - break; - - case 'h': /* --help */ - showusage(argv[0]); - return 0; - - case 'i': /* --noipparam */ - pptp_noipparam = TRUE; - break; - - case 'e': /* --ppp */ - if (ppp_binary) free(ppp_binary); - ppp_binary = strdup(optarg); - break; - - case 'd': /* --debug */ - pptp_debug = TRUE; - break; - - case 'f': /* --fg */ - foreground = TRUE; - break; - - case 'v': /* --version */ - showversion(); - return 0; - - case 'w': /* --logwtmp */ - pptp_logwtmp = TRUE; - break; - - case 'C': /* --connections */ - pptp_connections = atoi(optarg); - break; - - case 'D': /* --delegate */ - pptp_delegate = TRUE; - break; - - case 'o': /* --option */ - if (pppdoptstr) free(pppdoptstr); - pppdoptstr = strdup(optarg); - break; - - case 'p': /* --pidfile */ - if (pid_file) free(pid_file); - pid_file = strdup(optarg); - break; - - case 's': /* --speed */ - if (speedstr) free(speedstr); - speedstr = strdup(optarg); - break; - - case 't': /* --stimeout */ - pptp_stimeout = atoi(optarg); - break; - - case 'T': /* --stimeout */ - pptp_ptimeout = atoi(optarg); - break; - case 'k': /* --keep */ - keep_connections = 1; - break; - - case 'c': /* --conf */ - { - FILE *f; - if (!(f = fopen(optarg, "r"))) { - syslog(LOG_ERR, "MGR: Config file not found!"); - return 1; - } - fclose(f); - if(configFile) free(configFile); - configFile = strdup(optarg); - break; - } - - default: - showusage(argv[0]); - return 1; - } - } - - /* Now that we have all the command line args.. lets open the - * conf file and add anything else (remembering not to override - * anything since the command line has more privilages :-) - */ - - if (!configFile) - configFile = strdup(PPTPD_CONFIG_FILE_DEFAULT); - - if (read_config_file(configFile, CONNECTIONS_KEYWORD, tmp) > 0) { - pptp_connections = atoi(tmp); - if (pptp_connections <= 0) - pptp_connections = CONNECTIONS_DEFAULT; - } - - slot_init(pptp_connections); - - if (!pptp_debug && read_config_file(configFile, DEBUG_KEYWORD, tmp) > 0) - pptp_debug = TRUE; - -#ifdef BCRELAY - if (!bcrelay && read_config_file(configFile, BCRELAY_KEYWORD, tmp) > 0) - bcrelay = strdup(tmp); -#endif - - if (!pptp_stimeout && read_config_file(configFile, STIMEOUT_KEYWORD, tmp) > 0) { - pptp_stimeout = atoi(tmp); - if (pptp_stimeout <= 0) - pptp_stimeout = STIMEOUT_DEFAULT; - } - - if (!pptp_ptimeout && read_config_file(configFile, PTIMEOUT_KEYWORD, tmp) > 0) { - pptp_ptimeout = atoi(tmp); - if (pptp_ptimeout <= 0) - pptp_ptimeout = PTIMEOUT_DEFAULT; - } - - if (!pptp_noipparam && read_config_file(configFile, NOIPPARAM_KEYWORD, tmp) > 0) { - pptp_noipparam = TRUE; - } - - if (!bindaddr && read_config_file(configFile, LISTEN_KEYWORD, tmp) > 0) { - tmpstr = lookup(tmp); - if(!tmpstr) { - syslog(LOG_ERR, "MGR: Invalid listening address: %s!", tmp); - return 1; - } - bindaddr = strdup(tmpstr); - } - - if (!speedstr && read_config_file(configFile, SPEED_KEYWORD, tmp) > 0) - speedstr = strdup(tmp); - - if (!pppdoptstr && read_config_file(configFile, PPPD_OPTION_KEYWORD, tmp) > 0) { - pppdoptstr = strdup(tmp); - } - - if (!ppp_binary && read_config_file(configFile, PPP_BINARY_KEYWORD, tmp) > 0) { - ppp_binary = strdup(tmp); - } - - if (!pptp_logwtmp && read_config_file(configFile, LOGWTMP_KEYWORD, tmp) > 0) { - pptp_logwtmp = TRUE; - } - - if (!pptp_delegate && read_config_file(configFile, DELEGATE_KEYWORD, tmp) > 0) { - pptp_delegate = TRUE; - } - - if (read_config_file(configFile, KEEP_KEYWORD, tmp) > 0) { - keep_connections = TRUE; - } - - if (!pid_file) - pid_file = strdup((read_config_file(configFile, PIDFILE_KEYWORD, - tmp) > 0) ? tmp : PIDFILE_DEFAULT); - - if (!pptp_delegate) { - /* NOTE: remote then local, reason can be seen at the end of processIPStr */ - - /* grab the remoteip string from the config file */ - if (read_config_file(configFile, REMOTEIP_KEYWORD, tmp) <= 0) { - /* use "smart" defaults */ - strlcpy(tmp, DEFAULT_REMOTE_IP_LIST, sizeof(tmp)); - } - processIPStr(REMOTE, tmp); - - /* grab the localip string from the config file */ - if (read_config_file(configFile, LOCALIP_KEYWORD, tmp) <= 0) { - /* use "smart" defaults */ - strlcpy(tmp, DEFAULT_LOCAL_IP_LIST, sizeof(tmp)); - } - processIPStr(LOCAL, tmp); - } - - free(configFile); - - /* if not yet set, adopt default PPP binary path */ - if (!ppp_binary) ppp_binary = strdup(PPP_BINARY); - /* check that the PPP binary is executable */ - if (access(ppp_binary, X_OK) < 0) { - syslog(LOG_ERR, "MGR: PPP binary %s not executable", - ppp_binary); - return 1; - } - /* check that the PPP options file is readable */ - if (pppdoptstr && access(pppdoptstr, R_OK) < 0) { - syslog(LOG_ERR, "MGR: PPP options file %s not readable", - pppdoptstr); - return 1; - } -#ifdef BCRELAY - /* check that the bcrelay binary is executable */ - if (bcrelay && access(BCRELAY_BIN, X_OK) < 0) { - syslog(LOG_ERR, "MGR: bcrelay binary %s not executable", - BCRELAY_BIN); - return 1; - } -#endif - - syslog(LOG_INFO, "accel-pptpd-%s compiled for pppd-%s, linux-%s\n",VERSION,PPPD_VERSION,KERNELVERSION); - - if (!foreground) { -#if HAVE_DAEMON - closelog(); - freopen("/dev/null", "r", stdin); - daemon(0, 0); - /* returns to child only */ - /* pid will have changed */ - openlog("pptpd", LOG_PID, PPTP_FACILITY); -#else /* !HAVE_DAEMON */ - my_daemon(argc, argv); - /* returns to child if !HAVE_FORK - * never returns if HAVE_FORK (re-execs with -f) - */ -#endif - } - -#ifdef BCRELAY - if (bcrelay) { - syslog(LOG_DEBUG, "CTRL: BCrelay incoming interface is %s", bcrelay); - /* Launch BCrelay */ -#ifndef HAVE_FORK - switch(bcrelayfork = vfork()){ -#else - switch(bcrelayfork = fork()){ -#endif - case -1: /* fork() error */ - syslog(LOG_ERR, "CTRL: Error forking to exec bcrelay"); - _exit(1); - - case 0: /* child */ - syslog(LOG_DEBUG, "CTRL (BCrelay Launcher): Launching BCrelay with pid %i", bcrelayfork); - launch_bcrelay(); - syslog(LOG_ERR, "CTRL (BCrelay Launcher): Failed to launch BCrelay."); - _exit(1); - } - } /* End bcrelay */ -#endif - -#ifdef CONFIG_NETtel - /* turn the NETtel VPN LED on */ - ledman_cmd(LEDMAN_CMD_ON, LEDMAN_VPN); -#endif - /* after we have our final pid... */ - log_pid(pid_file); - - /* manage connections until SIGTERM */ - pptp_manager(argc, argv); - -#ifdef BCRELAY - if (bcrelayfork > 0) { - syslog(LOG_DEBUG, "CTRL: Closing child BCrelay with pid %i", bcrelayfork); - kill(bcrelayfork, SIGTERM); - } -#endif - - slot_free(); - return 0; -} - -static void log_pid(char *pid_file) { - FILE *f; - pid_t pid; - - pid = getpid(); - if ((f = fopen(pid_file, "w")) == NULL) { - syslog(LOG_ERR, "PPTPD: failed to open(%s), errno=%d\n", - pid_file, errno); - return; - } - fprintf(f, "%d\n", pid); - fclose(f); -} - -#ifndef HAVE_DAEMON -static void my_daemon(int argc, char **argv) -{ -#ifndef HAVE_FORK - /* need to use vfork - eg, uClinux */ - char **new_argv; - int pid; - extern char **environ; - int fdr; - - new_argv = malloc((argc + 2) * sizeof(char **)); - fdr = open("/dev/null", O_RDONLY); - syslog(LOG_INFO, "MGR: Option parse OK, re-execing as daemon"); - fflush(stderr); - if ((pid = vfork()) == 0) { - if (fdr != 0) { dup2(fdr, 0); close(fdr); } - SETSIDPGRP(); - chdir("/"); - umask(0); - memcpy(new_argv + 1, argv, (argc + 1) * sizeof(char **)); - new_argv[0] = PPTPD_BIN; - new_argv[1] = "-f"; - execve(PPTPD_BIN, new_argv, environ); - _exit(1); - } else if (pid > 0) { - exit(0); - } else { - syslog_perror("vfork"); - exit(1); - } -#else - int pid; - - closelog(); - if ((pid = fork()) < 0) { - syslog_perror("fork"); - exit(1); - } else if (pid) - exit(0); - freopen("/dev/null", "r", stdin); - SETSIDPGRP(); - chdir("/"); - umask(0); - /* pid will have changed */ - openlog("pptpd", LOG_PID, PPTP_FACILITY); -#endif -} -#endif - -/* added for hostname/address lookup -tmk - * returns NULL if not a valid hostname - */ -static char *lookup(char *hostname) -{ - struct hostent *ent; - struct in_addr hst_addr; - - /* Try to parse IP directly */ - if (inet_addr(hostname) != -1) - return hostname; - - /* Else lookup hostname, return NULL if it fails */ - if ((ent = gethostbyname(hostname)) == NULL) - return NULL; - - /* That worked, print it back as a dotted quad. */ - memcpy(&hst_addr.s_addr, ent->h_addr, ent->h_length); - return inet_ntoa(hst_addr); -} - -#define DEBUG_IP_PARSER 0 - -/* Return the address or NULL if not valid */ -static char *validip(char *hostname) -{ - /* Try to parse IP directly */ - if (inet_addr(hostname) != -1) - return hostname; - else - return NULL; -} - -/* Check if it's a valid IP range */ -static int isIpRange(char *str) -{ - int dashes = 0; - int dots = 0; - -#if DEBUG_IP_PARSER - syslog(LOG_DEBUG, "MGR: Checking if %s is a valid IP range", str); -#endif - do { - if (*str == '-') - dashes++; - else if (*str == '.') - dots++; - else if (!strchr("0123456789", *str)) { -#if DEBUG_IP_PARSER - syslog(LOG_DEBUG, "MGR: Not an IP range: character %c is not valid", *str); -#endif - return 0; - } - } while (*++str); -#if DEBUG_IP_PARSER - syslog(LOG_DEBUG, "MGR: Dashes = %d (wanted: 1), Dots = %d (wanted: 4)", dashes, dots); -#endif - return (dashes == 1 && dots == 3); -} - -/* process a type 0 (LOCAL) or type 1 (REMOTE) IP string */ -static void processIPStr(int type, char *ipstr) -{ - int pos; - - char *tmpstr; - /* char tmpstr2[20]; xxx.xxx.xxx.xxx-xxx (largest we can get) */ - char tmpstr2[128]; /* allow hostnames */ - char *tmpstr3; - char tmpstr5[16]; - char *tmpstr6; - char *tmpstr7; - int num; - - char ipa[8]; /* xxx-xxx (largest we can get) */ - char ipb[8]; - char ipc[8]; - char ipd[8]; - - char ip_pre[13]; /* xxx.xxx.xxx. (largest we can get) */ - char ip_post[13]; - - char ipl[4]; - char ipu[4]; - - int bail = FALSE; /* so we know when to stop formatting the ip line */ - - int lower, upper, n; - - num = 0; - - while (!bail) { - if ((tmpstr = strchr(ipstr, ',')) == NULL) { - /* last (or only) entry reached */ - strlcpy(tmpstr2, ipstr, sizeof(tmpstr2)); - bail = TRUE; - } else { - pos = tmpstr - ipstr; - ipstr[pos] = '\0'; - strlcpy(tmpstr2, ipstr, sizeof(tmpstr2)); - ipstr = tmpstr + 1; - } - -#if DEBUG_IP_PARSER - syslog(LOG_DEBUG, "MGR: Parsing segment: %s", tmpstr2); -#endif - - if (!isIpRange(tmpstr2)) { - /* We got a normal IP - * Check if the IP address is valid, use it if so - */ - if ((tmpstr7 = lookup(tmpstr2)) == NULL) { - syslog(LOG_ERR, "MGR: Bad IP address (%s) in config file!", tmpstr2); - exit(1); - } - if (num == pptp_connections) { - syslog(LOG_WARNING, "MGR: connections limit (%d) reached, extra IP addresses ignored", pptp_connections); - return; - } -#if DEBUG_IP_PARSER - syslog(LOG_DEBUG, "MGR: Setting IP %d = %s", num, tmpstr7); -#endif - if (type == LOCAL) - slot_set_local(num, tmpstr7); - else - slot_set_remote(num, tmpstr7); - num++; - } else { - /* Got a range; - * eg. 192.168.0.234-238 - * or (thanx Kev! :-).. i thought i was finished :-) - * 192.168-178.1.231 - */ - - /* lose the "."'s */ - while ((tmpstr3 = strchr(tmpstr2, '.')) != NULL) { - pos = tmpstr3 - tmpstr2; - tmpstr2[pos] = ' '; - } - - if ((tmpstr3 = strchr(tmpstr2, '-')) == NULL || - strchr(tmpstr3 + 1, '-') != NULL) { - syslog(LOG_ERR, "MGR: Confused in IP parse routines (multiple hyphens)"); - continue; - } - /* should be left with "192 168 0 234-238" - * or 192 168-178 1 231 - */ - - sscanf(tmpstr2, "%7s %7s %7s %7s", ipa, ipb, ipc, ipd); - - if ((tmpstr6 = strchr(ipd, '-')) != NULL) { - pos = tmpstr6 - ipd; - ipd[pos] = ' '; - sscanf(ipd, "%3s %3s", ipl, ipu); -#if DEBUG_IP_PARSER - syslog(LOG_DEBUG, "MGR: (lower upper) = (%s %s)", ipl, ipu); -#endif - lower = atoi(ipl); - upper = atoi(ipu); -#if DEBUG_IP_PARSER - syslog(LOG_DEBUG, "MGR: Range = %d to %d on 4th segment", lower, upper); -#endif - sprintf(ip_pre, "%.3s.%.3s.%.3s.", ipa, ipb, ipc); - ip_post[0] = '\0'; -#if DEBUG_IP_PARSER - syslog(LOG_DEBUG, "MGR: Pre = %s Post = %s", ip_pre, ip_post); -#endif - } else if ((tmpstr6 = strchr(ipc, '-')) != NULL) { - pos = tmpstr6 - ipc; - ipc[pos] = ' '; - sscanf(ipc, "%3s %3s", ipl, ipu); -#if DEBUG_IP_PARSER - syslog(LOG_DEBUG, "MGR: (lower upper) = (%s %s)", ipl, ipu); -#endif - lower = atoi(ipl); - upper = atoi(ipu); -#if DEBUG_IP_PARSER - syslog(LOG_DEBUG, "MGR: Range = %d to %d on 3rd segment", lower, upper); -#endif - sprintf(ip_pre, "%.3s.%.3s.", ipa, ipb); - sprintf(ip_post, ".%.3s", ipd); -#if DEBUG_IP_PARSER - syslog(LOG_DEBUG, "MGR: Pre = %s Post = %s", ip_pre, ip_post); -#endif - } else if ((tmpstr6 = strchr(ipb, '-')) != NULL) { - pos = tmpstr6 - ipb; - ipb[pos] = ' '; - sscanf(ipb, "%3s %3s", ipl, ipu); -#if DEBUG_IP_PARSER - syslog(LOG_DEBUG, "MGR: (lower upper) = (%s %s)", ipl, ipu); -#endif - lower = atoi(ipl); - upper = atoi(ipu); -#if DEBUG_IP_PARSER - syslog(LOG_DEBUG, "MGR: Range = %d to %d on 2nd segment", lower, upper); -#endif - sprintf(ip_pre, "%.3s.", ipa); - sprintf(ip_post, ".%.3s.%.3s", ipc, ipd); -#if DEBUG_IP_PARSER - syslog(LOG_DEBUG, "MGR: Pre = %s Post = %s", ip_pre, ip_post); -#endif - } else if ((tmpstr6 = strchr(ipa, '-')) != NULL) { - pos = tmpstr6 - ipa; - ipa[pos] = ' '; - sscanf(ipa, "%3s %3s", ipl, ipu); -#if DEBUG_IP_PARSER - syslog(LOG_DEBUG, "MGR: (lower upper) = (%s %s)", ipl, ipu); -#endif - lower = atoi(ipl); - upper = atoi(ipu); -#if DEBUG_IP_PARSER - syslog(LOG_DEBUG, "MGR: Range = %d to %d on 1st segment", lower, upper); -#endif - ip_pre[0] = '\0'; - sprintf(ip_post, ".%.3s.%.3s.%.3s", ipb, ipc, ipd); -#if DEBUG_IP_PARSER - syslog(LOG_DEBUG, "MGR: Pre = %s Post = %s", ip_pre, ip_post); -#endif - } else { - syslog(LOG_ERR, "MGR: Confused in IP parse routines (lost hyphen)"); - continue; - } - - for (n = lower; n <= upper; n++) { - sprintf(tmpstr5, "%s%d%s", ip_pre, n, ip_post); - /* Check if the ip address is valid */ - if ((tmpstr7 = validip(tmpstr5)) == NULL) { - syslog(LOG_ERR, "MGR: Bad IP address (%s) in config file!", tmpstr5); - exit(1); - } - if (num == pptp_connections) { - syslog(LOG_WARNING, "MGR: connections limit (%d) reached, extra IP addresses ignored", pptp_connections); - return; - } -#if DEBUG_IP_PARSER - syslog(LOG_DEBUG, "MGR: Setting IP %d = %s", num, tmpstr7); -#endif - if (type == LOCAL) - slot_set_local(num, tmpstr7); - else - slot_set_remote(num, tmpstr7); - num++; - } - } - } - if (num == 1 && type == LOCAL && pptp_connections > 1) { -#if DEBUG_IP_PARSER - syslog(LOG_DEBUG, "MGR: Setting all %d local IPs to %s", pptp_connections, slot_get_local(0)); -#endif - for (n = 1; n < pptp_connections; n++) - slot_set_local(n, slot_get_local(0)); - } else if (pptp_connections > num) { - syslog(LOG_INFO, "MGR: Maximum of %d connections reduced to %d, not enough IP addresses given", - pptp_connections, num); - pptp_connections = num; - } -} - -#ifdef BCRELAY -/* launch_bcrelay - * Launches broadcast relay. Broadcast relay is responsible for relaying broadcasts to the clients - * retn: 0 on success, -1 on failure. - */ -static void launch_bcrelay() { - char *bcrelay_argv[8]; - int an = 0; - - if (bcrelay) { - syslog(LOG_DEBUG, "MGR: BCrelay incoming interface is %s", bcrelay); - syslog(LOG_DEBUG, "MGR: BCrelay outgoing interface is regexp ppp[0-9].*"); - - bcrelay_argv[an++] = BCRELAY_BIN; - bcrelay_argv[an++] = "-i"; - bcrelay_argv[an++] = bcrelay; - bcrelay_argv[an++] = "-o"; - bcrelay_argv[an++] = "ppp[0-9].*"; - if (!pptp_debug) { - bcrelay_argv[an++] = "-n"; - } - bcrelay_argv[an++] = NULL; - - execvp(bcrelay_argv[0], bcrelay_argv); - } -} -#endif |