2 tincctl.c -- Controlling a running tincd
3 Copyright (C) 2007-2013 Guus Sliepen <guus@tinc-vpn.org>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License along
16 with this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
25 #include "readline/readline.h"
26 #include "readline/history.h"
31 #include "control_common.h"
35 #include "invitation.h"
43 #define mkdir(a, b) mkdir(a)
44 #define SCRIPTEXTENSION ".bat"
46 #define SCRIPTEXTENSION ""
49 static char **orig_argv;
52 /* If nonzero, display usage information and exit. */
53 static bool show_help = false;
55 /* If nonzero, print the version on standard output and exit. */
56 static bool show_version = false;
58 static char *name = NULL;
59 static char controlcookie[1025];
60 char *tinc_conf = NULL;
61 char *hosts_dir = NULL;
64 // Horrible global variables...
71 static bool force = false;
73 bool confbasegiven = false;
74 bool netnamegiven = false;
77 static struct WSAData wsa_state;
80 static struct option const long_options[] = {
81 {"config", required_argument, NULL, 'c'},
82 {"debug", optional_argument, NULL, 0},
83 {"no-detach", no_argument, NULL, 0},
84 {"mlock", no_argument, NULL, 0},
85 {"net", required_argument, NULL, 'n'},
86 {"help", no_argument, NULL, 1},
87 {"version", no_argument, NULL, 2},
88 {"pidfile", required_argument, NULL, 5},
89 {"logfile", required_argument, NULL, 0},
90 {"bypass-security", no_argument, NULL, 0},
91 {"chroot", no_argument, NULL, 0},
92 {"user", required_argument, NULL, 0},
93 {"option", required_argument, NULL, 0},
94 {"force", no_argument, NULL, 6},
98 static void version(void) {
99 printf("%s version %s (built %s %s, protocol %d.%d)\n", PACKAGE,
100 VERSION, __DATE__, __TIME__, PROT_MAJOR, PROT_MINOR);
101 printf("Copyright (C) 1998-2012 Ivo Timmermans, Guus Sliepen and others.\n"
102 "See the AUTHORS file for a complete list.\n\n"
103 "tinc comes with ABSOLUTELY NO WARRANTY. This is free software,\n"
104 "and you are welcome to redistribute it under certain conditions;\n"
105 "see the file COPYING for details.\n");
108 static void usage(bool status) {
110 fprintf(stderr, "Try `%s --help\' for more information.\n", program_name);
112 printf("Usage: %s [options] command\n\n", program_name);
113 printf("Valid options are:\n"
114 " -c, --config=DIR Read configuration options from DIR.\n"
115 " -n, --net=NETNAME Connect to net NETNAME.\n"
116 " --pidfile=FILENAME Read control cookie from FILENAME.\n"
117 " --help Display this help and exit.\n"
118 " --version Output version information and exit.\n"
120 "Valid commands are:\n"
121 " init [name] Create initial configuration files.\n"
122 " get VARIABLE Print current value of VARIABLE\n"
123 " set VARIABLE VALUE Set VARIABLE to VALUE\n"
124 " add VARIABLE VALUE Add VARIABLE with the given VALUE\n"
125 " del VARIABLE [VALUE] Remove VARIABLE [only ones with watching VALUE]\n"
126 " start [tincd options] Start tincd.\n"
127 " stop Stop tincd.\n"
128 " restart Restart tincd.\n"
129 " reload Partially reload configuration of running tincd.\n"
130 " pid Show PID of currently running tincd.\n"
131 " generate-keys [bits] Generate new RSA and ECDSA public/private keypairs.\n"
132 " generate-rsa-keys [bits] Generate a new RSA public/private keypair.\n"
133 " generate-ecdsa-keys Generate a new ECDSA public/private keypair.\n"
134 " dump Dump a list of one of the following things:\n"
135 " [reachable] nodes - all known nodes in the VPN\n"
136 " edges - all known connections in the VPN\n"
137 " subnets - all known subnets in the VPN\n"
138 " connections - all meta connections with ourself\n"
139 " [di]graph - graph of the VPN in dotty format\n"
140 " info NODE|SUBNET|ADDRESS Give information about a particular NODE, SUBNET or ADDRESS.\n"
141 " purge Purge unreachable nodes\n"
142 " debug N Set debug level\n"
143 " retry Retry all outgoing connections\n"
144 " disconnect NODE Close meta connection with NODE\n"
146 " top Show real-time statistics\n"
148 " pcap [snaplen] Dump traffic in pcap format [up to snaplen bytes per packet]\n"
149 " log [level] Dump log output [up to the specified level]\n"
150 " export Export host configuration of local node to standard output\n"
151 " export-all Export all host configuration files to standard output\n"
152 " import [--force] Import host configuration file(s) from standard input\n"
153 " exchange [--force] Same as export followed by import\n"
154 " exchange-all [--force] Same as export-all followed by import\n"
155 " invite NODE [...] Generate an invitation for NODE\n"
156 " join INVITATION Join a VPN using an INVITIATION\n"
158 printf("Report bugs to tinc@tinc-vpn.org.\n");
162 static bool parse_options(int argc, char **argv) {
164 int option_index = 0;
166 while((r = getopt_long(argc, argv, "c:n:Dd::Lo:RU:", long_options, &option_index)) != EOF) {
168 case 0: /* long option */
171 case 'c': /* config file */
172 confbase = xstrdup(optarg);
173 confbasegiven = true;
176 case 'n': /* net name given */
177 netname = xstrdup(optarg);
180 case 1: /* show help */
184 case 2: /* show version */
188 case 5: /* open control socket here */
189 pidfilename = xstrdup(optarg);
196 case '?': /* wrong options */
205 if(!netname && (netname = getenv("NETNAME")))
206 netname = xstrdup(netname);
208 /* netname "." is special: a "top-level name" */
210 if(netname && (!*netname || !strcmp(netname, "."))) {
215 if(netname && (strpbrk(netname, "\\/") || *netname == '.')) {
216 fprintf(stderr, "Invalid character in netname!\n");
223 static void disable_old_keys(const char *filename, const char *what) {
224 char tmpfile[PATH_MAX] = "";
226 bool disabled = false;
231 r = fopen(filename, "r");
235 snprintf(tmpfile, sizeof tmpfile, "%s.tmp", filename);
237 w = fopen(tmpfile, "w");
239 while(fgets(buf, sizeof buf, r)) {
240 if(!block && !strncmp(buf, "-----BEGIN ", 11)) {
241 if((strstr(buf, " EC ") && strstr(what, "ECDSA")) || (strstr(buf, " RSA ") && strstr(what, "RSA"))) {
247 bool ecdsapubkey = !strncasecmp(buf, "ECDSAPublicKey", 14) && strchr(" \t=", buf[14]) && strstr(what, "ECDSA");
253 if(block || ecdsapubkey)
255 if(fputs(buf, w) < 0) {
261 if(block && !strncmp(buf, "-----END ", 9))
268 if(ferror(r) || fclose(r) < 0)
273 fprintf(stderr, "Warning: old key(s) found, remove them by hand!\n");
280 // We cannot atomically replace files on Windows.
281 char bakfile[PATH_MAX] = "";
282 snprintf(bakfile, sizeof bakfile, "%s.bak", filename);
283 if(rename(filename, bakfile) || rename(tmpfile, filename)) {
284 rename(bakfile, filename);
286 if(rename(tmpfile, filename)) {
288 fprintf(stderr, "Warning: old key(s) found, remove them by hand!\n");
293 fprintf(stderr, "Warning: old key(s) found and disabled.\n");
300 static FILE *ask_and_open(const char *filename, const char *what, const char *mode, bool ask) {
306 /* Check stdin and stdout */
308 /* Ask for a file and/or directory name. */
309 fprintf(stdout, "Please enter a file to save %s to [%s]: ", what, filename);
312 if(fgets(buf, sizeof buf, stdin) == NULL) {
313 fprintf(stderr, "Error while reading stdin: %s\n", strerror(errno));
317 size_t len = strlen(buf);
326 if(filename[0] != '\\' && filename[0] != '/' && !strchr(filename, ':')) {
328 if(filename[0] != '/') {
330 /* The directory is a relative path or a filename. */
331 directory = get_current_dir_name();
332 snprintf(buf2, sizeof buf2, "%s" SLASH "%s", directory, filename);
336 umask(0077); /* Disallow everything for group and other */
338 disable_old_keys(filename, what);
340 /* Open it first to keep the inode busy */
342 r = fopen(filename, mode);
345 fprintf(stderr, "Error opening file `%s': %s\n", filename, strerror(errno));
353 Generate a public/private ECDSA keypair, and ask for a file to store
356 static bool ecdsa_keygen(bool ask) {
359 char *pubname, *privname;
361 fprintf(stderr, "Generating ECDSA keypair:\n");
363 if(!(key = ecdsa_generate())) {
364 fprintf(stderr, "Error during key generation!\n");
367 fprintf(stderr, "Done.\n");
369 xasprintf(&privname, "%s" SLASH "ecdsa_key.priv", confbase);
370 f = ask_and_open(privname, "private ECDSA key", "a", ask);
377 /* Make it unreadable for others. */
378 fchmod(fileno(f), 0600);
381 if(!ecdsa_write_pem_private_key(key, f)) {
382 fprintf(stderr, "Error writing private key!\n");
391 xasprintf(&pubname, "%s" SLASH "hosts" SLASH "%s", confbase, name);
393 xasprintf(&pubname, "%s" SLASH "ecdsa_key.pub", confbase);
395 f = ask_and_open(pubname, "public ECDSA key", "a", ask);
401 char *pubkey = ecdsa_get_base64_public_key(key);
402 fprintf(f, "ECDSAPublicKey = %s\n", pubkey);
412 Generate a public/private RSA keypair, and ask for a file to store
415 static bool rsa_keygen(int bits, bool ask) {
418 char *pubname, *privname;
420 fprintf(stderr, "Generating %d bits keys:\n", bits);
422 if(!(key = rsa_generate(bits, 0x10001))) {
423 fprintf(stderr, "Error during key generation!\n");
426 fprintf(stderr, "Done.\n");
428 xasprintf(&privname, "%s" SLASH "rsa_key.priv", confbase);
429 f = ask_and_open(privname, "private RSA key", "a", ask);
436 /* Make it unreadable for others. */
437 fchmod(fileno(f), 0600);
440 if(!rsa_write_pem_private_key(key, f)) {
441 fprintf(stderr, "Error writing private key!\n");
450 xasprintf(&pubname, "%s" SLASH "hosts" SLASH "%s", confbase, name);
452 xasprintf(&pubname, "%s" SLASH "rsa_key.pub", confbase);
454 f = ask_and_open(pubname, "public RSA key", "a", ask);
460 if(!rsa_write_pem_public_key(key, f)) {
461 fprintf(stderr, "Error writing public key!\n");
476 bool recvline(int fd, char *line, size_t len) {
477 char *newline = NULL;
481 while(!(newline = memchr(buffer, '\n', blen))) {
482 int result = recv(fd, buffer + blen, sizeof buffer - blen, 0);
483 if(result == -1 && errno == EINTR)
490 if(newline - buffer >= len)
493 len = newline - buffer;
495 memcpy(line, buffer, len);
497 memmove(buffer, newline + 1, blen - len - 1);
503 bool recvdata(int fd, char *data, size_t len) {
508 int result = recv(fd, buffer + blen, sizeof buffer - blen, 0);
509 if(result == -1 && errno == EINTR)
516 memcpy(data, buffer, len);
517 memmove(buffer, buffer + len, blen - len);
523 bool sendline(int fd, char *format, ...) {
524 static char buffer[4096];
529 va_start(ap, format);
530 blen = vsnprintf(buffer, sizeof buffer, format, ap);
533 if(blen < 1 || blen >= sizeof buffer)
540 int result = send(fd, p, blen, 0);
541 if(result == -1 && errno == EINTR)
552 static void pcap(int fd, FILE *out, int snaplen) {
553 sendline(fd, "%d %d %d", CONTROL, REQ_PCAP, snaplen);
561 uint32_t tz_accuracy;
568 snaplen ?: sizeof data,
581 fwrite(&header, sizeof header, 1, out);
585 while(recvline(fd, line, sizeof line)) {
587 int n = sscanf(line, "%d %d %d", &code, &req, &len);
588 gettimeofday(&tv, NULL);
589 if(n != 3 || code != CONTROL || req != REQ_PCAP || len < 0 || len > sizeof data)
591 if(!recvdata(fd, data, len))
593 packet.tv_sec = tv.tv_sec;
594 packet.tv_usec = tv.tv_usec;
596 packet.origlen = len;
597 fwrite(&packet, sizeof packet, 1, out);
598 fwrite(data, len, 1, out);
603 static void logcontrol(int fd, FILE *out, int level) {
604 sendline(fd, "%d %d %d", CONTROL, REQ_LOG, level);
608 while(recvline(fd, line, sizeof line)) {
610 int n = sscanf(line, "%d %d %d", &code, &req, &len);
611 if(n != 3 || code != CONTROL || req != REQ_LOG || len < 0 || len > sizeof data)
613 if(!recvdata(fd, data, len))
615 fwrite(data, len, 1, out);
622 static bool remove_service(void) {
623 SC_HANDLE manager = NULL;
624 SC_HANDLE service = NULL;
625 SERVICE_STATUS status = {0};
627 manager = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
629 fprintf(stderr, "Could not open service manager: %s\n", winerror(GetLastError()));
633 service = OpenService(manager, identname, SERVICE_ALL_ACCESS);
636 fprintf(stderr, "Could not open %s service: %s\n", identname, winerror(GetLastError()));
640 if(!ControlService(service, SERVICE_CONTROL_STOP, &status))
641 fprintf(stderr, "Could not stop %s service: %s\n", identname, winerror(GetLastError()));
643 fprintf(stderr, "%s service stopped\n", identname);
645 if(!DeleteService(service)) {
646 fprintf(stderr, "Could not remove %s service: %s\n", identname, winerror(GetLastError()));
650 fprintf(stderr, "%s service removed\n", identname);
656 bool connect_tincd(bool verbose) {
661 struct timeval tv = {0, 0};
662 if(select(fd + 1, &r, NULL, NULL, &tv)) {
663 fprintf(stderr, "Previous connection to tincd lost, reconnecting.\n");
671 FILE *f = fopen(pidfilename, "r");
674 fprintf(stderr, "Could not open pid file %s: %s\n", pidfilename, strerror(errno));
681 if(fscanf(f, "%20d %1024s %128s port %128s", &pid, controlcookie, host, port) != 4) {
683 fprintf(stderr, "Could not parse pid file %s\n", pidfilename);
691 if(WSAStartup(MAKEWORD(2, 2), &wsa_state)) {
693 fprintf(stderr, "System call `%s' failed: %s", "WSAStartup", winerror(GetLastError()));
699 struct sockaddr_un sa;
700 sa.sun_family = AF_UNIX;
701 strncpy(sa.sun_path, unixsocketname, sizeof sa.sun_path);
703 fd = socket(AF_UNIX, SOCK_STREAM, 0);
706 fprintf(stderr, "Cannot create UNIX socket: %s\n", sockstrerror(sockerrno));
710 if(connect(fd, (struct sockaddr *)&sa, sizeof sa) < 0) {
712 fprintf(stderr, "Cannot connect to UNIX socket %s: %s\n", unixsocketname, sockstrerror(sockerrno));
718 struct addrinfo hints = {
719 .ai_family = AF_UNSPEC,
720 .ai_socktype = SOCK_STREAM,
721 .ai_protocol = IPPROTO_TCP,
725 struct addrinfo *res = NULL;
727 if(getaddrinfo(host, port, &hints, &res) || !res) {
729 fprintf(stderr, "Cannot resolve %s port %s: %s", host, port, strerror(errno));
733 fd = socket(res->ai_family, SOCK_STREAM, IPPROTO_TCP);
736 fprintf(stderr, "Cannot create TCP socket: %s\n", sockstrerror(sockerrno));
741 unsigned long arg = 0;
743 if(ioctlsocket(fd, FIONBIO, &arg) != 0) {
745 fprintf(stderr, "ioctlsocket failed: %s", sockstrerror(sockerrno));
749 if(connect(fd, res->ai_addr, res->ai_addrlen) < 0) {
751 fprintf(stderr, "Cannot connect to %s port %s: %s\n", host, port, sockstrerror(sockerrno));
763 if(!recvline(fd, line, sizeof line) || sscanf(line, "%d %s %d", &code, data, &version) != 3 || code != 0) {
765 fprintf(stderr, "Cannot read greeting from control socket: %s\n", sockstrerror(sockerrno));
771 sendline(fd, "%d ^%s %d", ID, controlcookie, TINC_CTL_VERSION_CURRENT);
773 if(!recvline(fd, line, sizeof line) || sscanf(line, "%d %d %d", &code, &version, &pid) != 3 || code != 4 || version != TINC_CTL_VERSION_CURRENT) {
775 fprintf(stderr, "Could not fully establish control socket connection\n");
785 static int cmd_start(int argc, char *argv[]) {
786 if(connect_tincd(false)) {
788 fprintf(stderr, "A tincd is already running for net `%s' with pid %d.\n", netname, pid);
790 fprintf(stderr, "A tincd is already running with pid %d.\n", pid);
795 char *slash = strrchr(program_name, '/');
798 if ((c = strrchr(program_name, '\\')) > slash)
803 xasprintf(&c, "%.*stincd", (int)(slash - program_name), program_name);
808 char **nargv = xzalloc((optind + argc) * sizeof *nargv);
811 for(int i = 1; i < optind; i++)
812 nargv[nargc++] = orig_argv[i];
813 for(int i = 1; i < argc; i++)
814 nargv[nargc++] = argv[i];
818 fprintf(stderr, "Error starting %s: %s\n", c, strerror(errno));
823 fprintf(stderr, "Could not fork: %s\n", strerror(errno));
829 exit(execvp(c, nargv));
834 if(waitpid(pid, &status, 0) != pid || !WIFEXITED(status) || WEXITSTATUS(status)) {
835 fprintf(stderr, "Error starting %s\n", c);
843 static int cmd_stop(int argc, char *argv[]) {
845 fprintf(stderr, "Too many arguments!\n");
850 if(!connect_tincd(true)) {
852 if(kill(pid, SIGTERM)) {
853 fprintf(stderr, "Could not send TERM signal to process with PID %u: %s\n", pid, strerror(errno));
857 fprintf(stderr, "Sent TERM signal to process with PID %u.\n", pid);
858 waitpid(pid, NULL, 0);
865 sendline(fd, "%d %d", CONTROL, REQ_STOP);
867 while(recvline(fd, line, sizeof line)) {
868 // Wait for tincd to close the connection...
871 if(!remove_service())
881 static int cmd_restart(int argc, char *argv[]) {
882 cmd_stop(argc, argv);
883 return cmd_start(argc, argv);
886 static int cmd_reload(int argc, char *argv[]) {
888 fprintf(stderr, "Too many arguments!\n");
892 if(!connect_tincd(true))
895 sendline(fd, "%d %d", CONTROL, REQ_RELOAD);
896 if(!recvline(fd, line, sizeof line) || sscanf(line, "%d %d %d", &code, &req, &result) != 3 || code != CONTROL || req != REQ_RELOAD || result) {
897 fprintf(stderr, "Could not reload configuration.\n");
905 static int cmd_dump(int argc, char *argv[]) {
906 bool only_reachable = false;
908 if(argc > 2 && !strcasecmp(argv[1], "reachable")) {
909 if(strcasecmp(argv[2], "nodes")) {
910 fprintf(stderr, "`reachable' only supported for nodes.\n");
914 only_reachable = true;
920 fprintf(stderr, "Invalid number of arguments.\n");
925 if(!connect_tincd(true))
930 if(!strcasecmp(argv[1], "nodes"))
931 sendline(fd, "%d %d", CONTROL, REQ_DUMP_NODES);
932 else if(!strcasecmp(argv[1], "edges"))
933 sendline(fd, "%d %d", CONTROL, REQ_DUMP_EDGES);
934 else if(!strcasecmp(argv[1], "subnets"))
935 sendline(fd, "%d %d", CONTROL, REQ_DUMP_SUBNETS);
936 else if(!strcasecmp(argv[1], "connections"))
937 sendline(fd, "%d %d", CONTROL, REQ_DUMP_CONNECTIONS);
938 else if(!strcasecmp(argv[1], "graph")) {
939 sendline(fd, "%d %d", CONTROL, REQ_DUMP_NODES);
940 sendline(fd, "%d %d", CONTROL, REQ_DUMP_EDGES);
942 } else if(!strcasecmp(argv[1], "digraph")) {
943 sendline(fd, "%d %d", CONTROL, REQ_DUMP_NODES);
944 sendline(fd, "%d %d", CONTROL, REQ_DUMP_EDGES);
947 fprintf(stderr, "Unknown dump type '%s'.\n", argv[1]);
954 else if(do_graph == 2)
955 printf("digraph {\n");
957 while(recvline(fd, line, sizeof line)) {
958 char node1[4096], node2[4096];
959 int n = sscanf(line, "%d %d %s %s", &code, &req, node1, node2);
961 if(do_graph && req == REQ_DUMP_NODES)
980 int cipher, digest, maclength, compression, distance, socket, weight;
981 short int pmtu, minmtu, maxmtu;
982 unsigned int options, status_int;
983 node_status_t status;
984 long int last_state_change;
987 case REQ_DUMP_NODES: {
988 int n = sscanf(line, "%*d %*d %s %s port %s %d %d %d %d %x %x %s %s %d %hd %hd %hd %ld", node, host, port, &cipher, &digest, &maclength, &compression, &options, &status_int, nexthop, via, &distance, &pmtu, &minmtu, &maxmtu, &last_state_change);
990 fprintf(stderr, "Unable to parse node dump from tincd: %s\n", line);
994 memcpy(&status, &status_int, sizeof status);
997 const char *color = "black";
998 if(!strcmp(host, "MYSELF"))
1000 else if(!status.reachable)
1002 else if(strcmp(via, node))
1004 else if(!status.validkey)
1008 printf(" %s [label = \"%s\", color = \"%s\"%s];\n", node, node, color, strcmp(host, "MYSELF") ? "" : ", style = \"filled\"");
1010 if(only_reachable && !status.reachable)
1012 printf("%s at %s port %s cipher %d digest %d maclength %d compression %d options %x status %04x nexthop %s via %s distance %d pmtu %hd (min %hd max %hd)\n",
1013 node, host, port, cipher, digest, maclength, compression, options, status_int, nexthop, via, distance, pmtu, minmtu, maxmtu);
1017 case REQ_DUMP_EDGES: {
1018 int n = sscanf(line, "%*d %*d %s %s %s port %s %x %d", from, to, host, port, &options, &weight);
1020 fprintf(stderr, "Unable to parse edge dump from tincd.\n");
1025 float w = 1 + 65536.0 / weight;
1026 if(do_graph == 1 && strcmp(node1, node2) > 0)
1027 printf(" %s -- %s [w = %f, weight = %f];\n", node1, node2, w, w);
1028 else if(do_graph == 2)
1029 printf(" %s -> %s [w = %f, weight = %f];\n", node1, node2, w, w);
1031 printf("%s to %s at %s port %s options %x weight %d\n", from, to, host, port, options, weight);
1035 case REQ_DUMP_SUBNETS: {
1036 int n = sscanf(line, "%*d %*d %s %s", subnet, node);
1038 fprintf(stderr, "Unable to parse subnet dump from tincd.\n");
1041 printf("%s owner %s\n", strip_weight(subnet), node);
1044 case REQ_DUMP_CONNECTIONS: {
1045 int n = sscanf(line, "%*d %*d %s %s port %s %x %d %x", node, host, port, &options, &socket, &status_int);
1047 fprintf(stderr, "Unable to parse connection dump from tincd.\n");
1050 printf("%s at %s port %s options %x socket %d status %x\n", node, host, port, options, socket, status_int);
1054 fprintf(stderr, "Unable to parse dump from tincd.\n");
1059 fprintf(stderr, "Error receiving dump.\n");
1063 static int cmd_purge(int argc, char *argv[]) {
1065 fprintf(stderr, "Too many arguments!\n");
1069 if(!connect_tincd(true))
1072 sendline(fd, "%d %d", CONTROL, REQ_PURGE);
1073 if(!recvline(fd, line, sizeof line) || sscanf(line, "%d %d %d", &code, &req, &result) != 3 || code != CONTROL || req != REQ_PURGE || result) {
1074 fprintf(stderr, "Could not purge old information.\n");
1081 static int cmd_debug(int argc, char *argv[]) {
1083 fprintf(stderr, "Invalid number of arguments.\n");
1087 if(!connect_tincd(true))
1090 int debuglevel = atoi(argv[1]);
1093 sendline(fd, "%d %d %d", CONTROL, REQ_SET_DEBUG, debuglevel);
1094 if(!recvline(fd, line, sizeof line) || sscanf(line, "%d %d %d", &code, &req, &origlevel) != 3 || code != CONTROL || req != REQ_SET_DEBUG) {
1095 fprintf(stderr, "Could not set debug level.\n");
1099 fprintf(stderr, "Old level %d, new level %d.\n", origlevel, debuglevel);
1103 static int cmd_retry(int argc, char *argv[]) {
1105 fprintf(stderr, "Too many arguments!\n");
1109 if(!connect_tincd(true))
1112 sendline(fd, "%d %d", CONTROL, REQ_RETRY);
1113 if(!recvline(fd, line, sizeof line) || sscanf(line, "%d %d %d", &code, &req, &result) != 3 || code != CONTROL || req != REQ_RETRY || result) {
1114 fprintf(stderr, "Could not retry outgoing connections.\n");
1121 static int cmd_connect(int argc, char *argv[]) {
1123 fprintf(stderr, "Invalid number of arguments.\n");
1127 if(!check_id(argv[1])) {
1128 fprintf(stderr, "Invalid name for node.\n");
1132 if(!connect_tincd(true))
1135 sendline(fd, "%d %d %s", CONTROL, REQ_CONNECT, argv[1]);
1136 if(!recvline(fd, line, sizeof line) || sscanf(line, "%d %d %d", &code, &req, &result) != 3 || code != CONTROL || req != REQ_CONNECT || result) {
1137 fprintf(stderr, "Could not connect to %s.\n", argv[1]);
1144 static int cmd_disconnect(int argc, char *argv[]) {
1146 fprintf(stderr, "Invalid number of arguments.\n");
1150 if(!check_id(argv[1])) {
1151 fprintf(stderr, "Invalid name for node.\n");
1155 if(!connect_tincd(true))
1158 sendline(fd, "%d %d %s", CONTROL, REQ_DISCONNECT, argv[1]);
1159 if(!recvline(fd, line, sizeof line) || sscanf(line, "%d %d %d", &code, &req, &result) != 3 || code != CONTROL || req != REQ_DISCONNECT || result) {
1160 fprintf(stderr, "Could not disconnect %s.\n", argv[1]);
1167 static int cmd_top(int argc, char *argv[]) {
1169 fprintf(stderr, "Too many arguments!\n");
1174 if(!connect_tincd(true))
1180 fprintf(stderr, "This version of tinc was compiled without support for the curses library.\n");
1185 static int cmd_pcap(int argc, char *argv[]) {
1187 fprintf(stderr, "Too many arguments!\n");
1191 if(!connect_tincd(true))
1194 pcap(fd, stdout, argc > 1 ? atoi(argv[1]) : 0);
1198 static int cmd_log(int argc, char *argv[]) {
1200 fprintf(stderr, "Too many arguments!\n");
1204 if(!connect_tincd(true))
1207 logcontrol(fd, stdout, argc > 1 ? atoi(argv[1]) : -1);
1211 static int cmd_pid(int argc, char *argv[]) {
1213 fprintf(stderr, "Too many arguments!\n");
1217 if(!connect_tincd(true) && !pid)
1220 printf("%d\n", pid);
1224 int rstrip(char *value) {
1225 int len = strlen(value);
1226 while(len && strchr("\t\r\n ", value[len - 1]))
1231 char *get_my_name(bool verbose) {
1232 FILE *f = fopen(tinc_conf, "r");
1235 fprintf(stderr, "Could not open %s: %s\n", tinc_conf, strerror(errno));
1241 while(fgets(buf, sizeof buf, f)) {
1242 int len = strcspn(buf, "\t =");
1244 value += strspn(value, "\t ");
1247 value += strspn(value, "\t ");
1252 if(strcasecmp(buf, "Name"))
1256 return strdup(value);
1262 fprintf(stderr, "Could not find Name in %s.\n", tinc_conf);
1266 const var_t variables[] = {
1267 /* Server configuration */
1268 {"AddressFamily", VAR_SERVER},
1269 {"AutoConnect", VAR_SERVER | VAR_SAFE},
1270 {"BindToAddress", VAR_SERVER | VAR_MULTIPLE},
1271 {"BindToInterface", VAR_SERVER},
1272 {"Broadcast", VAR_SERVER | VAR_SAFE},
1273 {"ConnectTo", VAR_SERVER | VAR_MULTIPLE | VAR_SAFE},
1274 {"DecrementTTL", VAR_SERVER},
1275 {"Device", VAR_SERVER},
1276 {"DeviceType", VAR_SERVER},
1277 {"DirectOnly", VAR_SERVER},
1278 {"ECDSAPrivateKeyFile", VAR_SERVER},
1279 {"ExperimentalProtocol", VAR_SERVER},
1280 {"Forwarding", VAR_SERVER},
1281 {"GraphDumpFile", VAR_SERVER | VAR_OBSOLETE},
1282 {"Hostnames", VAR_SERVER},
1283 {"IffOneQueue", VAR_SERVER},
1284 {"Interface", VAR_SERVER},
1285 {"KeyExpire", VAR_SERVER},
1286 {"LocalDiscovery", VAR_SERVER},
1287 {"MACExpire", VAR_SERVER},
1288 {"MaxOutputBufferSize", VAR_SERVER},
1289 {"MaxTimeout", VAR_SERVER},
1290 {"Mode", VAR_SERVER | VAR_SAFE},
1291 {"Name", VAR_SERVER},
1292 {"PingInterval", VAR_SERVER},
1293 {"PingTimeout", VAR_SERVER},
1294 {"PriorityInheritance", VAR_SERVER},
1295 {"PrivateKey", VAR_SERVER | VAR_OBSOLETE},
1296 {"PrivateKeyFile", VAR_SERVER},
1297 {"ProcessPriority", VAR_SERVER},
1298 {"Proxy", VAR_SERVER},
1299 {"ReplayWindow", VAR_SERVER},
1300 {"ScriptsExtension", VAR_SERVER},
1301 {"ScriptsInterpreter", VAR_SERVER},
1302 {"StrictSubnets", VAR_SERVER},
1303 {"TunnelServer", VAR_SERVER},
1304 {"UDPRcvBuf", VAR_SERVER},
1305 {"UDPSndBuf", VAR_SERVER},
1306 {"VDEGroup", VAR_SERVER},
1307 {"VDEPort", VAR_SERVER},
1308 /* Host configuration */
1309 {"Address", VAR_HOST | VAR_MULTIPLE},
1310 {"Cipher", VAR_SERVER | VAR_HOST},
1311 {"ClampMSS", VAR_SERVER | VAR_HOST},
1312 {"Compression", VAR_SERVER | VAR_HOST},
1313 {"Digest", VAR_SERVER | VAR_HOST},
1314 {"ECDSAPublicKey", VAR_HOST},
1315 {"ECDSAPublicKeyFile", VAR_SERVER | VAR_HOST},
1316 {"IndirectData", VAR_SERVER | VAR_HOST},
1317 {"MACLength", VAR_SERVER | VAR_HOST},
1318 {"PMTU", VAR_SERVER | VAR_HOST},
1319 {"PMTUDiscovery", VAR_SERVER | VAR_HOST},
1321 {"PublicKey", VAR_HOST | VAR_OBSOLETE},
1322 {"PublicKeyFile", VAR_SERVER | VAR_HOST | VAR_OBSOLETE},
1323 {"Subnet", VAR_HOST | VAR_MULTIPLE | VAR_SAFE},
1324 {"TCPOnly", VAR_SERVER | VAR_HOST},
1325 {"Weight", VAR_HOST | VAR_SAFE},
1329 static int cmd_config(int argc, char *argv[]) {
1331 fprintf(stderr, "Invalid number of arguments.\n");
1335 if(strcasecmp(argv[0], "config"))
1339 if(!strcasecmp(argv[1], "get")) {
1341 } else if(!strcasecmp(argv[1], "add")) {
1342 argv++, argc--, action = 1;
1343 } else if(!strcasecmp(argv[1], "del")) {
1344 argv++, argc--, action = -1;
1345 } else if(!strcasecmp(argv[1], "replace") || !strcasecmp(argv[1], "set") || !strcasecmp(argv[1], "change")) {
1346 argv++, argc--, action = 0;
1350 fprintf(stderr, "Invalid number of arguments.\n");
1354 // Concatenate the rest of the command line
1355 strncpy(line, argv[1], sizeof line - 1);
1356 for(int i = 2; i < argc; i++) {
1357 strncat(line, " ", sizeof line - 1 - strlen(line));
1358 strncat(line, argv[i], sizeof line - 1 - strlen(line));
1361 // Liberal parsing into node name, variable name and value.
1367 len = strcspn(line, "\t =");
1369 value += strspn(value, "\t ");
1372 value += strspn(value, "\t ");
1375 variable = strchr(line, '.');
1384 fprintf(stderr, "No variable given.\n");
1388 if(action >= 0 && !*value) {
1389 fprintf(stderr, "No value for variable given.\n");
1393 if(action < -1 && *value)
1396 /* Some simple checks. */
1399 for(int i = 0; variables[i].name; i++) {
1400 if(strcasecmp(variables[i].name, variable))
1404 variable = (char *)variables[i].name;
1406 /* Discourage use of obsolete variables. */
1408 if(variables[i].type & VAR_OBSOLETE && action >= 0) {
1410 fprintf(stderr, "Warning: %s is an obsolete variable!\n", variable);
1412 fprintf(stderr, "%s is an obsolete variable! Use --force to use it anyway.\n", variable);
1417 /* Don't put server variables in host config files */
1419 if(node && !(variables[i].type & VAR_HOST) && action >= 0) {
1421 fprintf(stderr, "Warning: %s is not a host configuration variable!\n", variable);
1423 fprintf(stderr, "%s is not a host configuration variable! Use --force to use it anyway.\n", variable);
1428 /* Should this go into our own host config file? */
1430 if(!node && !(variables[i].type & VAR_SERVER)) {
1431 node = get_my_name(true);
1439 if(node && !check_id(node)) {
1440 fprintf(stderr, "Invalid name for node.\n");
1445 if(force || action < 0) {
1446 fprintf(stderr, "Warning: %s is not a known configuration variable!\n", variable);
1448 fprintf(stderr, "%s: is not a known configuration variable! Use --force to use it anyway.\n", variable);
1453 // Open the right configuration file.
1456 xasprintf(&filename, "%s" SLASH "%s", hosts_dir, node);
1458 filename = tinc_conf;
1460 FILE *f = fopen(filename, "r");
1462 fprintf(stderr, "Could not open configuration file %s: %s\n", filename, strerror(errno));
1466 char *tmpfile = NULL;
1470 xasprintf(&tmpfile, "%s.config.tmp", filename);
1471 tf = fopen(tmpfile, "w");
1473 fprintf(stderr, "Could not open temporary file %s: %s\n", tmpfile, strerror(errno));
1479 // Copy the file, making modifications on the fly, unless we are just getting a value.
1483 bool removed = false;
1486 while(fgets(buf1, sizeof buf1, f)) {
1487 buf1[sizeof buf1 - 1] = 0;
1488 strncpy(buf2, buf1, sizeof buf2);
1490 // Parse line in a simple way
1494 len = strcspn(buf2, "\t =");
1495 bvalue = buf2 + len;
1496 bvalue += strspn(bvalue, "\t ");
1497 if(*bvalue == '=') {
1499 bvalue += strspn(bvalue, "\t ");
1505 if(!strcasecmp(buf2, variable)) {
1509 printf("%s\n", bvalue);
1511 } else if(action == -1) {
1512 if(!*value || !strcasecmp(bvalue, value)) {
1517 } else if(action == 0) {
1518 // Already set? Delete the rest...
1521 // Otherwise, replace.
1522 if(fprintf(tf, "%s = %s\n", variable, value) < 0) {
1523 fprintf(stderr, "Error writing to temporary file %s: %s\n", tmpfile, strerror(errno));
1532 // Copy original line...
1533 if(fputs(buf1, tf) < 0) {
1534 fprintf(stderr, "Error writing to temporary file %s: %s\n", tmpfile, strerror(errno));
1538 // Add newline if it is missing...
1539 if(*buf1 && buf1[strlen(buf1) - 1] != '\n') {
1540 if(fputc('\n', tf) < 0) {
1541 fprintf(stderr, "Error writing to temporary file %s: %s\n", tmpfile, strerror(errno));
1548 // Make sure we read everything...
1549 if(ferror(f) || !feof(f)) {
1550 fprintf(stderr, "Error while reading from configuration file %s: %s\n", filename, strerror(errno));
1555 fprintf(stderr, "Error closing configuration file %s: %s\n", filename, strerror(errno));
1559 // Add new variable if necessary.
1560 if(action > 0 || (action == 0 && !set)) {
1561 if(fprintf(tf, "%s = %s\n", variable, value) < 0) {
1562 fprintf(stderr, "Error writing to temporary file %s: %s\n", tmpfile, strerror(errno));
1569 fprintf(stderr, "No matching configuration variables found.\n");
1573 // Make sure we wrote everything...
1575 fprintf(stderr, "Error closing temporary file %s: %s\n", tmpfile, strerror(errno));
1579 // Could we find what we had to remove?
1580 if(action < 0 && !removed) {
1582 fprintf(stderr, "No configuration variables deleted.\n");
1586 // Replace the configuration file with the new one
1588 if(remove(filename)) {
1589 fprintf(stderr, "Error replacing file %s: %s\n", filename, strerror(errno));
1593 if(rename(tmpfile, filename)) {
1594 fprintf(stderr, "Error renaming temporary file %s to configuration file %s: %s\n", tmpfile, filename, strerror(errno));
1598 // Silently try notifying a running tincd of changes.
1599 if(connect_tincd(false))
1600 sendline(fd, "%d %d", CONTROL, REQ_RELOAD);
1605 bool check_id(const char *name) {
1609 for(int i = 0; i < strlen(name); i++) {
1610 if(!isalnum(name[i]) && name[i] != '_')
1617 static int cmd_init(int argc, char *argv[]) {
1618 if(!access(tinc_conf, F_OK)) {
1619 fprintf(stderr, "Configuration file %s already exists!\n", tinc_conf);
1624 fprintf(stderr, "Too many arguments!\n");
1626 } else if(argc < 2) {
1629 fprintf(stdout, "Enter the Name you want your tinc node to have: ");
1631 if(!fgets(buf, sizeof buf, stdin)) {
1632 fprintf(stderr, "Error while reading stdin: %s\n", strerror(errno));
1635 int len = rstrip(buf);
1637 fprintf(stderr, "No name given!\n");
1642 fprintf(stderr, "No Name given!\n");
1646 name = strdup(argv[1]);
1648 fprintf(stderr, "No Name given!\n");
1653 if(!check_id(name)) {
1654 fprintf(stderr, "Invalid Name! Only a-z, A-Z, 0-9 and _ are allowed characters.\n");
1658 if(mkdir(confdir, 0755) && errno != EEXIST) {
1659 fprintf(stderr, "Could not create directory %s: %s\n", CONFDIR, strerror(errno));
1663 if(mkdir(confbase, 0755) && errno != EEXIST) {
1664 fprintf(stderr, "Could not create directory %s: %s\n", confbase, strerror(errno));
1668 if(mkdir(hosts_dir, 0755) && errno != EEXIST) {
1669 fprintf(stderr, "Could not create directory %s: %s\n", hosts_dir, strerror(errno));
1673 FILE *f = fopen(tinc_conf, "w");
1675 fprintf(stderr, "Could not create file %s: %s\n", tinc_conf, strerror(errno));
1679 fprintf(f, "Name = %s\n", name);
1682 if(!rsa_keygen(2048, false) || !ecdsa_keygen(false))
1687 xasprintf(&filename, "%s" SLASH "tinc-up", confbase);
1688 if(access(filename, F_OK)) {
1689 FILE *f = fopen(filename, "w");
1691 fprintf(stderr, "Could not create file %s: %s\n", filename, strerror(errno));
1694 fchmod(fileno(f), 0755);
1695 fprintf(f, "#!/bin/sh\n\necho 'Unconfigured tinc-up script, please edit!'\n\n#ifconfig $INTERFACE <your vpn IP address> netmask <netmask of whole VPN>\n");
1704 static int cmd_generate_keys(int argc, char *argv[]) {
1706 fprintf(stderr, "Too many arguments!\n");
1711 name = get_my_name(false);
1713 return !(rsa_keygen(argc > 1 ? atoi(argv[1]) : 2048, true) && ecdsa_keygen(true));
1716 static int cmd_generate_rsa_keys(int argc, char *argv[]) {
1718 fprintf(stderr, "Too many arguments!\n");
1723 name = get_my_name(false);
1725 return !rsa_keygen(argc > 1 ? atoi(argv[1]) : 2048, true);
1728 static int cmd_generate_ecdsa_keys(int argc, char *argv[]) {
1730 fprintf(stderr, "Too many arguments!\n");
1735 name = get_my_name(false);
1737 return !ecdsa_keygen(true);
1740 static int cmd_help(int argc, char *argv[]) {
1745 static int cmd_version(int argc, char *argv[]) {
1747 fprintf(stderr, "Too many arguments!\n");
1755 static int cmd_info(int argc, char *argv[]) {
1757 fprintf(stderr, "Invalid number of arguments.\n");
1761 if(!connect_tincd(true))
1764 return info(fd, argv[1]);
1767 static const char *conffiles[] = {
1778 static int cmd_edit(int argc, char *argv[]) {
1780 fprintf(stderr, "Invalid number of arguments.\n");
1784 char *filename = NULL;
1786 if(strncmp(argv[1], "hosts" SLASH, 6)) {
1787 for(int i = 0; conffiles[i]; i++) {
1788 if(!strcmp(argv[1], conffiles[i])) {
1789 xasprintf(&filename, "%s" SLASH "%s", confbase, argv[1]);
1798 xasprintf(&filename, "%s" SLASH "%s", hosts_dir, argv[1]);
1799 char *dash = strchr(argv[1], '-');
1802 if((strcmp(dash, "up") && strcmp(dash, "down")) || !check_id(argv[1])) {
1803 fprintf(stderr, "Invalid configuration filename.\n");
1811 xasprintf(&command, "\"%s\" \"%s\"", getenv("VISUAL") ?: getenv("EDITOR") ?: "vi", filename);
1813 xasprintf(&command, "edit \"%s\"", filename);
1815 int result = system(command);
1819 // Silently try notifying a running tincd of changes.
1820 if(connect_tincd(false))
1821 sendline(fd, "%d %d", CONTROL, REQ_RELOAD);
1826 static int export(const char *name, FILE *out) {
1828 xasprintf(&filename, "%s" SLASH "%s", hosts_dir, name);
1829 FILE *in = fopen(filename, "r");
1831 fprintf(stderr, "Could not open configuration file %s: %s\n", filename, strerror(errno));
1835 fprintf(out, "Name = %s\n", name);
1837 while(fgets(buf, sizeof buf, in)) {
1838 if(strcspn(buf, "\t =") != 4 || strncasecmp(buf, "Name", 4))
1843 fprintf(stderr, "Error while reading configuration file %s: %s\n", filename, strerror(errno));
1852 static int cmd_export(int argc, char *argv[]) {
1854 fprintf(stderr, "Too many arguments!\n");
1858 char *name = get_my_name(true);
1862 int result = export(name, stdout);
1870 static int cmd_export_all(int argc, char *argv[]) {
1872 fprintf(stderr, "Too many arguments!\n");
1876 DIR *dir = opendir(hosts_dir);
1878 fprintf(stderr, "Could not open host configuration directory %s: %s\n", hosts_dir, strerror(errno));
1886 while((ent = readdir(dir))) {
1887 if(!check_id(ent->d_name))
1893 printf("#---------------------------------------------------------------#\n");
1895 result |= export(ent->d_name, stdout);
1904 static int cmd_import(int argc, char *argv[]) {
1906 fprintf(stderr, "Too many arguments!\n");
1915 char *filename = NULL;
1917 bool firstline = true;
1919 while(fgets(buf, sizeof buf, in)) {
1920 if(sscanf(buf, "Name = %s", name) == 1) {
1923 if(!check_id(name)) {
1924 fprintf(stderr, "Invalid Name in input!\n");
1932 xasprintf(&filename, "%s" SLASH "%s", hosts_dir, name);
1934 if(!force && !access(filename, F_OK)) {
1935 fprintf(stderr, "Host configuration file %s already exists, skipping.\n", filename);
1940 out = fopen(filename, "w");
1942 fprintf(stderr, "Error creating configuration file %s: %s\n", filename, strerror(errno));
1948 } else if(firstline) {
1949 fprintf(stderr, "Junk at the beginning of the input, ignoring.\n");
1954 if(!strcmp(buf, "#---------------------------------------------------------------#\n"))
1958 if(fputs(buf, out) < 0) {
1959 fprintf(stderr, "Error writing to host configuration file %s: %s\n", filename, strerror(errno));
1969 fprintf(stderr, "Imported %d host configuration files.\n", count);
1972 fprintf(stderr, "No host configuration files imported.\n");
1977 static int cmd_exchange(int argc, char *argv[]) {
1978 return cmd_export(argc, argv) ?: cmd_import(argc, argv);
1981 static int cmd_exchange_all(int argc, char *argv[]) {
1982 return cmd_export_all(argc, argv) ?: cmd_import(argc, argv);
1985 static const struct {
1986 const char *command;
1987 int (*function)(int argc, char *argv[]);
1990 {"start", cmd_start},
1992 {"restart", cmd_restart},
1993 {"reload", cmd_reload},
1995 {"purge", cmd_purge},
1996 {"debug", cmd_debug},
1997 {"retry", cmd_retry},
1998 {"connect", cmd_connect},
1999 {"disconnect", cmd_disconnect},
2004 {"config", cmd_config, true},
2005 {"add", cmd_config},
2006 {"del", cmd_config},
2007 {"get", cmd_config},
2008 {"set", cmd_config},
2010 {"generate-keys", cmd_generate_keys},
2011 {"generate-rsa-keys", cmd_generate_rsa_keys},
2012 {"generate-ecdsa-keys", cmd_generate_ecdsa_keys},
2014 {"version", cmd_version},
2017 {"export", cmd_export},
2018 {"export-all", cmd_export_all},
2019 {"import", cmd_import},
2020 {"exchange", cmd_exchange},
2021 {"exchange-all", cmd_exchange_all},
2022 {"invite", cmd_invite},
2027 #ifdef HAVE_READLINE
2028 static char *complete_command(const char *text, int state) {
2036 while(commands[i].command) {
2037 if(!commands[i].hidden && !strncasecmp(commands[i].command, text, strlen(text)))
2038 return xstrdup(commands[i].command);
2045 static char *complete_dump(const char *text, int state) {
2046 const char *matches[] = {"reachable", "nodes", "edges", "subnets", "connections", "graph", NULL};
2055 if(!strncasecmp(matches[i], text, strlen(text)))
2056 return xstrdup(matches[i]);
2063 static char *complete_config(const char *text, int state) {
2071 while(variables[i].name) {
2072 char *dot = strchr(text, '.');
2074 if((variables[i].type & VAR_HOST) && !strncasecmp(variables[i].name, dot + 1, strlen(dot + 1))) {
2076 xasprintf(&match, "%.*s.%s", (int)(dot - text), text, variables[i].name);
2080 if(!strncasecmp(variables[i].name, text, strlen(text)))
2081 return xstrdup(variables[i].name);
2089 static char *complete_info(const char *text, int state) {
2093 if(!connect_tincd(false))
2095 // Check the list of nodes
2096 sendline(fd, "%d %d", CONTROL, REQ_DUMP_NODES);
2097 sendline(fd, "%d %d", CONTROL, REQ_DUMP_SUBNETS);
2100 while(recvline(fd, line, sizeof line)) {
2102 int n = sscanf(line, "%d %d %s", &code, &req, item);
2112 fprintf(stderr, "Unable to parse dump from tincd, n = %d, i = %d.\n", n, i);
2116 if(!strncmp(item, text, strlen(text)))
2117 return xstrdup(strip_weight(item));
2123 static char *complete_nothing(const char *text, int state) {
2127 static char **completion (const char *text, int start, int end) {
2128 char **matches = NULL;
2131 matches = rl_completion_matches(text, complete_command);
2132 else if(!strncasecmp(rl_line_buffer, "dump ", 5))
2133 matches = rl_completion_matches(text, complete_dump);
2134 else if(!strncasecmp(rl_line_buffer, "add ", 4))
2135 matches = rl_completion_matches(text, complete_config);
2136 else if(!strncasecmp(rl_line_buffer, "del ", 4))
2137 matches = rl_completion_matches(text, complete_config);
2138 else if(!strncasecmp(rl_line_buffer, "get ", 4))
2139 matches = rl_completion_matches(text, complete_config);
2140 else if(!strncasecmp(rl_line_buffer, "set ", 4))
2141 matches = rl_completion_matches(text, complete_config);
2142 else if(!strncasecmp(rl_line_buffer, "info ", 5))
2143 matches = rl_completion_matches(text, complete_info);
2149 static int cmd_shell(int argc, char *argv[]) {
2151 xasprintf(&prompt, "%s> ", identname);
2155 int maxargs = argc + 16;
2156 char **nargv = xmalloc(maxargs * sizeof *nargv);
2158 for(int i = 0; i < argc; i++)
2161 #ifdef HAVE_READLINE
2162 rl_readline_name = "tinc";
2163 rl_completion_entry_function = complete_nothing;
2164 rl_attempted_completion_function = completion;
2165 rl_filename_completion_desired = 0;
2170 #ifdef HAVE_READLINE
2174 rl_basic_word_break_characters = "\t\n ";
2175 line = readline(prompt);
2177 copy = xstrdup(line);
2179 line = fgets(buf, sizeof buf, stdin);
2183 fputs(prompt, stdout);
2185 line = fgets(buf, sizeof buf, stdin);
2191 /* Ignore comments */
2199 char *p = line + strspn(line, " \t\n");
2200 char *next = strtok(p, " \t\n");
2203 if(nargc >= maxargs) {
2204 fprintf(stderr, "next %p '%s', p %p '%s'\n", next, next, p, p);
2207 nargv = xrealloc(nargv, maxargs * sizeof *nargv);
2212 next = strtok(NULL, " \t\n");
2218 if(!strcasecmp(nargv[argc], "exit") || !strcasecmp(nargv[argc], "quit"))
2223 for(int i = 0; commands[i].command; i++) {
2224 if(!strcasecmp(nargv[argc], commands[i].command)) {
2225 result |= commands[i].function(nargc - argc - 1, nargv + argc + 1);
2231 #ifdef HAVE_READLINE
2237 fprintf(stderr, "Unknown command `%s'.\n", nargv[argc]);
2250 int main(int argc, char *argv[]) {
2251 program_name = argv[0];
2255 if(!parse_options(argc, argv))
2259 xasprintf(&tinc_conf, "%s" SLASH "tinc.conf", confbase);
2260 xasprintf(&hosts_dir, "%s" SLASH "hosts", confbase);
2274 tty = isatty(0) && isatty(1);
2277 return cmd_shell(argc, argv);
2279 for(int i = 0; commands[i].command; i++) {
2280 if(!strcasecmp(argv[optind], commands[i].command))
2281 return commands[i].function(argc - optind, argv + optind);
2284 fprintf(stderr, "Unknown command `%s'.\n", argv[optind]);