/*
tincd.c -- the main file for tincd
- Copyright (C) 1998-2001 Ivo Timmermans <itimmermans@bigfoot.com>
- 2000,2001 Guus Sliepen <guus@sliepen.warande.net>
+ Copyright (C) 1998-2002 Ivo Timmermans <ivo@o2w.nl>
+ 2000-2002 Guus Sliepen <guus@sliepen.eu.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id: tincd.c,v 1.10.4.55 2001/10/28 08:41:19 guus Exp $
+ $Id: tincd.c,v 1.10.4.67 2003/05/06 23:14:45 guus Exp $
*/
#include "config.h"
#include <errno.h>
-#include <fcntl.h>
+#include <fcntl.h>
#include <getopt.h>
#include <signal.h>
#include <stdio.h>
#include <string.h>
#include <termios.h>
+/* Darwin (MacOS/X) needs the following definition... */
+#ifndef _P1003_1B_VISIBLE
+#define _P1003_1B_VISIBLE
+#endif
+
+#include <sys/mman.h>
+
#ifdef HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
#endif
#include <openssl/rand.h>
#include <openssl/rsa.h>
#include <openssl/pem.h>
+#include <openssl/evp.h>
+
+#include <lzo1x.h>
#include <utils.h>
#include <xalloc.h>
/* If nonzero, use null ciphers and skip all key exchanges. */
int bypass_security = 0;
-char *identname; /* program name for syslog */
-char *pidfilename; /* pid file location */
-char **g_argv; /* a copy of the cmdline arguments */
-char **environment; /* A pointer to the environment on
- startup */
-
-static struct option const long_options[] =
-{
- { "config", required_argument, NULL, 'c' },
- { "kill", optional_argument, NULL, 'k' },
- { "net", required_argument, NULL, 'n' },
- { "help", no_argument, &show_help, 1 },
- { "version", no_argument, &show_version, 1 },
- { "no-detach", no_argument, &do_detach, 0 },
- { "generate-keys", optional_argument, NULL, 'K'},
- { "debug", optional_argument, NULL, 'd'},
- { "bypass-security", no_argument, &bypass_security, 1 },
- { NULL, 0, NULL, 0 }
+/* If nonzero, disable swapping for this process. */
+int do_mlock = 0;
+
+char *identname; /* program name for syslog */
+char *pidfilename; /* pid file location */
+char **g_argv; /* a copy of the cmdline arguments */
+char **environment; /* A pointer to the environment on
+ startup */
+
+static struct option const long_options[] = {
+ {"config", required_argument, NULL, 'c'},
+ {"kill", optional_argument, NULL, 'k'},
+ {"net", required_argument, NULL, 'n'},
+ {"help", no_argument, &show_help, 1},
+ {"version", no_argument, &show_version, 1},
+ {"no-detach", no_argument, &do_detach, 0},
+ {"generate-keys", optional_argument, NULL, 'K'},
+ {"debug", optional_argument, NULL, 'd'},
+ {"bypass-security", no_argument, &bypass_security, 1},
+ {"mlock", no_argument, &do_mlock, 1},
+ {NULL, 0, NULL, 0}
};
-static void
-usage(int status)
+static void usage(int status)
{
- if(status != 0)
- fprintf(stderr, _("Try `%s --help\' for more information.\n"), program_name);
- else
- {
- printf(_("Usage: %s [option]...\n\n"), program_name);
- printf(_(" -c, --config=DIR Read configuration options from DIR.\n"
- " -D, --no-detach Don't fork and detach.\n"
- " -d, --debug[=LEVEL] Increase debug level or set it to LEVEL.\n"
- " -k, --kill[=SIGNAL] Attempt to kill a running tincd and exit.\n"
- " -n, --net=NETNAME Connect to net NETNAME.\n"));
- printf(_(" -K, --generate-keys[=BITS] Generate public/private RSA keypair.\n"
- " --help Display this help and exit.\n"
- " --version Output version information and exit.\n\n"));
- printf(_("Report bugs to tinc@nl.linux.org.\n"));
- }
- exit(status);
+ if(status != 0)
+ fprintf(stderr, _("Try `%s --help\' for more information.\n"),
+ program_name);
+ else {
+ printf(_("Usage: %s [option]...\n\n"), program_name);
+ printf(_(" -c, --config=DIR Read configuration options from DIR.\n"
+ " -D, --no-detach Don't fork and detach.\n"
+ " -d, --debug[=LEVEL] Increase debug level or set it to LEVEL.\n"
+ " -k, --kill[=SIGNAL] Attempt to kill a running tincd and exit.\n"
+ " -n, --net=NETNAME Connect to net NETNAME.\n"
+ " -K, --generate-keys[=BITS] Generate public/private RSA keypair.\n"
+ " -L, --mlock Lock tinc into main memory.\n"
+ " --help Display this help and exit.\n"
+ " --version Output version information and exit.\n\n"));
+ printf(_("Report bugs to tinc@nl.linux.org.\n"));
+ }
+
+ exit(status);
}
-void
-parse_options(int argc, char **argv, char **envp)
+void parse_options(int argc, char **argv, char **envp)
{
- int r;
- int option_index = 0;
-
- while((r = getopt_long(argc, argv, "c:Dd::k::n:K::", long_options, &option_index)) != EOF)
- {
- switch(r)
- {
- case 0: /* long option */
- break;
- case 'c': /* config file */
- confbase = xmalloc(strlen(optarg)+1);
- strcpy(confbase, optarg);
- break;
- case 'D': /* no detach */
- do_detach = 0;
- break;
- case 'd': /* inc debug level */
- if(optarg)
- debug_lvl = atoi(optarg);
- else
- debug_lvl++;
- break;
- case 'k': /* kill old tincds */
- kill_tincd = optarg?atoi(optarg):SIGTERM;
- break;
- case 'n': /* net name given */
- netname = xmalloc(strlen(optarg)+1);
- strcpy(netname, optarg);
- break;
- case 'K': /* generate public/private keypair */
- if(optarg)
- {
- generate_keys = atoi(optarg);
- if(generate_keys < 512)
- {
- fprintf(stderr, _("Invalid argument `%s'; BITS must be a number equal to or greater than 512.\n"),
- optarg);
- usage(1);
- }
- generate_keys &= ~7; /* Round it to bytes */
- }
- else
- generate_keys = 1024;
- break;
- case '?':
- usage(1);
- default:
- break;
- }
- }
+ int r;
+ int option_index = 0;
+
+ while((r = getopt_long(argc, argv, "c:DLd::k::n:K::", long_options, &option_index)) != EOF) {
+ switch (r) {
+ case 0: /* long option */
+ break;
+
+ case 'c': /* config file */
+ confbase = xmalloc(strlen(optarg) + 1);
+ strcpy(confbase, optarg);
+ break;
+
+ case 'D': /* no detach */
+ do_detach = 0;
+ break;
+
+ case 'L': /* no detach */
+ do_mlock = 1;
+ break;
+
+ case 'd': /* inc debug level */
+ if(optarg)
+ debug_lvl = atoi(optarg);
+ else
+ debug_lvl++;
+ break;
+
+ case 'k': /* kill old tincds */
+ if(optarg) {
+ if(!strcasecmp(optarg, "HUP"))
+ kill_tincd = SIGHUP;
+ else if(!strcasecmp(optarg, "TERM"))
+ kill_tincd = SIGTERM;
+ else if(!strcasecmp(optarg, "KILL"))
+ kill_tincd = SIGKILL;
+ else if(!strcasecmp(optarg, "USR1"))
+ kill_tincd = SIGUSR1;
+ else if(!strcasecmp(optarg, "USR2"))
+ kill_tincd = SIGUSR2;
+ else if(!strcasecmp(optarg, "WINCH"))
+ kill_tincd = SIGWINCH;
+ else if(!strcasecmp(optarg, "INT"))
+ kill_tincd = SIGINT;
+ else if(!strcasecmp(optarg, "ALRM"))
+ kill_tincd = SIGALRM;
+ else {
+ kill_tincd = atoi(optarg);
+
+ if(!kill_tincd) {
+ fprintf(stderr, _("Invalid argument `%s'; SIGNAL must be a number or one of HUP, TERM, KILL, USR1, USR2, WINCH, INT or ALRM.\n"),
+ optarg);
+ usage(1);
+ }
+ }
+ } else
+ kill_tincd = SIGTERM;
+ break;
+
+ case 'n': /* net name given */
+ netname = xmalloc(strlen(optarg) + 1);
+ strcpy(netname, optarg);
+ break;
+
+ case 'K': /* generate public/private keypair */
+ if(optarg) {
+ generate_keys = atoi(optarg);
+
+ if(generate_keys < 512) {
+ fprintf(stderr, _("Invalid argument `%s'; BITS must be a number equal to or greater than 512.\n"),
+ optarg);
+ usage(1);
+ }
+
+ generate_keys &= ~7; /* Round it to bytes */
+ } else
+ generate_keys = 1024;
+ break;
+
+ case '?':
+ usage(1);
+
+ default:
+ break;
+ }
+ }
}
/* This function prettyprints the key generation process */
void indicator(int a, int b, void *p)
{
- switch(a)
- {
- case 0:
- fprintf(stderr, ".");
- break;
- case 1:
- fprintf(stderr, "+");
- break;
- case 2:
- fprintf(stderr, "-");
- break;
- case 3:
- switch(b)
- {
- case 0:
- fprintf(stderr, " p\n");
- break;
- case 1:
- fprintf(stderr, " q\n");
- break;
- default:
- fprintf(stderr, "?");
- }
- break;
- default:
- fprintf(stderr, "?");
- }
+ switch (a) {
+ case 0:
+ fprintf(stderr, ".");
+ break;
+
+ case 1:
+ fprintf(stderr, "+");
+ break;
+
+ case 2:
+ fprintf(stderr, "-");
+ break;
+
+ case 3:
+ switch (b) {
+ case 0:
+ fprintf(stderr, " p\n");
+ break;
+
+ case 1:
+ fprintf(stderr, " q\n");
+ break;
+
+ default:
+ fprintf(stderr, "?");
+ }
+ break;
+
+ default:
+ fprintf(stderr, "?");
+ }
}
/*
*/
int keygen(int bits)
{
- RSA *rsa_key;
- FILE *f;
- char *name = NULL;
- char *filename;
-
- fprintf(stderr, _("Generating %d bits keys:\n"), bits);
- rsa_key = RSA_generate_key(bits, 0xFFFF, indicator, NULL);
-
- if(!rsa_key)
- {
- fprintf(stderr, _("Error during key generation!\n"));
- return -1;
- }
- else
- fprintf(stderr, _("Done.\n"));
-
- get_config_string(lookup_config(config_tree, "Name"), &name);
-
- if(name)
- asprintf(&filename, "%s/hosts/%s", confbase, name);
- else
- asprintf(&filename, "%s/rsa_key.pub", confbase);
-
- if((f = ask_and_safe_open(filename, _("public RSA key"), "a")) == NULL)
- return -1;
-
- if(ftell(f))
- fprintf(stderr, _("Appending key to existing contents.\nMake sure only one key is stored in the file.\n"));
-
- PEM_write_RSAPublicKey(f, rsa_key);
- fclose(f);
- free(filename);
-
- asprintf(&filename, "%s/rsa_key.priv", confbase);
- if((f = ask_and_safe_open(filename, _("private RSA key"), "a")) == NULL)
- return -1;
-
- if(ftell(f))
- fprintf(stderr, _("Appending key to existing contents.\nMake sure only one key is stored in the file.\n"));
-
- PEM_write_RSAPrivateKey(f, rsa_key, NULL, NULL, 0, NULL, NULL);
- fclose(f);
- free(filename);
-
- return 0;
+ RSA *rsa_key;
+ FILE *f;
+ char *name = NULL;
+ char *filename;
+
+ fprintf(stderr, _("Generating %d bits keys:\n"), bits);
+ rsa_key = RSA_generate_key(bits, 0xFFFF, indicator, NULL);
+
+ if(!rsa_key) {
+ fprintf(stderr, _("Error during key generation!\n"));
+ return -1;
+ } else
+ fprintf(stderr, _("Done.\n"));
+
+ get_config_string(lookup_config(config_tree, "Name"), &name);
+
+ if(name)
+ asprintf(&filename, "%s/hosts/%s", confbase, name);
+ else
+ asprintf(&filename, "%s/rsa_key.pub", confbase);
+
+ f = ask_and_safe_open(filename, _("public RSA key"), "a");
+
+ if(!f)
+ return -1;
+
+ if(ftell(f))
+ fprintf(stderr, _("Appending key to existing contents.\nMake sure only one key is stored in the file.\n"));
+
+ PEM_write_RSAPublicKey(f, rsa_key);
+ fclose(f);
+ free(filename);
+
+ asprintf(&filename, "%s/rsa_key.priv", confbase);
+ f = ask_and_safe_open(filename, _("private RSA key"), "a");
+
+ if(!f)
+ return -1;
+
+ if(ftell(f))
+ fprintf(stderr, _("Appending key to existing contents.\nMake sure only one key is stored in the file.\n"));
+
+ PEM_write_RSAPrivateKey(f, rsa_key, NULL, NULL, 0, NULL, NULL);
+ fclose(f);
+ free(filename);
+
+ return 0;
}
/*
*/
void make_names(void)
{
- if(netname)
- {
- if(!pidfilename)
- asprintf(&pidfilename, LOCALSTATEDIR "/run/tinc.%s.pid", netname);
- if(!confbase)
- asprintf(&confbase, "%s/tinc/%s", CONFDIR, netname);
- else
- syslog(LOG_INFO, _("Both netname and configuration directory given, using the latter..."));
- if(!identname)
- asprintf(&identname, "tinc.%s", netname);
- }
- else
- {
- if(!pidfilename)
- pidfilename = LOCALSTATEDIR "/run/tinc.pid";
- if(!confbase)
- asprintf(&confbase, "%s/tinc", CONFDIR);
- if(!identname)
- identname = "tinc";
- }
+ if(netname) {
+ if(!pidfilename)
+ asprintf(&pidfilename, LOCALSTATEDIR "/run/tinc.%s.pid", netname);
+
+ if(!confbase)
+ asprintf(&confbase, "%s/tinc/%s", CONFDIR, netname);
+ else
+ syslog(LOG_INFO, _("Both netname and configuration directory given, using the latter..."));
+
+ if(!identname)
+ asprintf(&identname, "tinc.%s", netname);
+ } else {
+ if(!pidfilename)
+ pidfilename = LOCALSTATEDIR "/run/tinc.pid";
+
+ if(!confbase)
+ asprintf(&confbase, "%s/tinc", CONFDIR);
+
+ if(!identname)
+ identname = "tinc";
+ }
}
-int
-main(int argc, char **argv, char **envp)
+int main(int argc, char **argv, char **envp)
{
- program_name = argv[0];
-
- setlocale (LC_ALL, "");
- bindtextdomain (PACKAGE, LOCALEDIR);
- textdomain (PACKAGE);
-
- environment = envp;
- parse_options(argc, argv, envp);
-
- if(show_version)
- {
- printf(_("%s version %s (built %s %s, protocol %d)\n"), PACKAGE, VERSION, __DATE__, __TIME__, PROT_CURRENT);
- printf(_("Copyright (C) 1998-2001 Ivo Timmermans, Guus Sliepen and others.\n"
- "See the AUTHORS file for a complete list.\n\n"
- "tinc comes with ABSOLUTELY NO WARRANTY. This is free software,\n"
- "and you are welcome to redistribute it under certain conditions;\n"
- "see the file COPYING for details.\n"));
-
- return 0;
- }
-
- if(show_help)
- usage(0);
-
- if(geteuid())
- {
- fprintf(stderr, _("You must be root to run this program.\n"));
- return 1;
- }
-
-#ifdef HAVE_SOLARIS
- openlog("tinc", LOG_CONS, LOG_DAEMON); /* Catch all syslog() calls issued before detaching */
-#else
- openlog("tinc", LOG_PERROR, LOG_DAEMON); /* Catch all syslog() calls issued before detaching */
+ program_name = argv[0];
+
+ setlocale(LC_ALL, "");
+ bindtextdomain(PACKAGE, LOCALEDIR);
+ textdomain(PACKAGE);
+
+ environment = envp;
+ parse_options(argc, argv, envp);
+
+ if(show_version) {
+ printf(_("%s version %s (built %s %s, protocol %d)\n"), PACKAGE,
+ VERSION, __DATE__, __TIME__, PROT_CURRENT);
+ printf(_("Copyright (C) 1998-2002 Ivo Timmermans, Guus Sliepen and others.\n"
+ "See the AUTHORS file for a complete list.\n\n"
+ "tinc comes with ABSOLUTELY NO WARRANTY. This is free software,\n"
+ "and you are welcome to redistribute it under certain conditions;\n"
+ "see the file COPYING for details.\n"));
+
+ return 0;
+ }
+
+ if(show_help)
+ usage(0);
+
+ if(kill_tincd)
+ exit(kill_other(kill_tincd));
+
+#ifndef LOG_PERROR
+ openlog("tinc", LOG_CONS, LOG_DAEMON); /* Catch all syslog() calls issued before detaching */
+#else
+ openlog("tinc", LOG_PERROR, LOG_DAEMON); /* Catch all syslog() calls issued before detaching */
+#endif
+
+ /* Lock all pages into memory if requested */
+
+ if(do_mlock)
+#ifdef HAVE_MLOCKALL
+ if(mlockall(MCL_CURRENT | MCL_FUTURE)) {
+ syslog(LOG_ERR, _("System call `%s' failed: %s"), "mlockall",
+ strerror(errno));
+#else
+ {
+ syslog(LOG_ERR, _("mlockall() not supported on this platform!"));
+#endif
+ return -1;
+ }
+
+ g_argv = argv;
+
+ make_names();
+ init_configuration(&config_tree);
+
+ /* Slllluuuuuuurrrrp! */
+
+ RAND_load_file("/dev/urandom", 1024);
+
+#ifdef HAVE_OPENSSL_ADD_ALL_ALGORITHMS_NOCONF
+ OPENSSL_add_all_algorithms_noconf();
+#else
+#ifdef HAVE_OPENSSL_ADD_ALL_ALGORITHMS
+ OpenSSL_add_all_algorithms();
+#else
+#ifdef HAVE_SSLEAY_ADD_ALL_ALGORITHMS
+ SSLeay_add_all_algorithms();
+#else
+#error No add_all_algorithms function available!
+#endif
+#endif
#endif
- g_argv = argv;
-
- make_names();
- init_configuration(&config_tree);
-
- /* Slllluuuuuuurrrrp! */
-cp
- RAND_load_file("/dev/urandom", 1024);
-cp
- if(generate_keys)
- {
- read_server_config();
- exit(keygen(generate_keys));
- }
-
- if(kill_tincd)
- exit(kill_other(kill_tincd));
-
- if(read_server_config())
- exit(1);
-cp
- if(detach())
- exit(0);
-cp
- for(;;)
- {
- if(!setup_network_connections())
- {
- main_loop();
- cleanup_and_exit(1);
- }
-
- syslog(LOG_ERR, _("Unrecoverable error"));
- cp_trace();
-
- if(do_detach)
- {
- syslog(LOG_NOTICE, _("Restarting in %d seconds!"), maxtimeout);
- sleep(maxtimeout);
- }
- else
- {
- syslog(LOG_ERR, _("Not restarting."));
- exit(1);
- }
- }
+ if(generate_keys) {
+ read_server_config();
+ exit(keygen(generate_keys));
+ }
+
+ if(read_server_config())
+ exit(1);
+
+ if(lzo_init() != LZO_E_OK) {
+ syslog(LOG_ERR, _("Error initializing LZO compressor!"));
+ exit(1);
+ }
+
+ if(detach())
+ exit(0);
+
+ for(;;) {
+ if(!setup_network_connections()) {
+ main_loop();
+ cleanup_and_exit(1);
+ }
+
+ syslog(LOG_ERR, _("Unrecoverable error"));
+ cp_trace();
+
+ if(do_detach) {
+ syslog(LOG_NOTICE, _("Restarting in %d seconds!"), maxtimeout);
+ sleep(maxtimeout);
+ } else {
+ syslog(LOG_ERR, _("Not restarting."));
+ exit(1);
+ }
+ }
}
projects / tinc / blobdiff