X-Git-Url: https://www.tinc-vpn.org/git/browse?a=blobdiff_plain;f=src%2Ftincctl.c;h=7d27341effe7f21f397f10ef32761decc9426420;hb=9708bbfa8e3094de8932a30b1d24c661558d8a03;hp=93bb465ce874309061b67f905b4abcd4021bd8b1;hpb=5bc957074a35e58f49cbcf8d1fb5d6237d37363d;p=tinc diff --git a/src/tincctl.c b/src/tincctl.c index 93bb465c..7d27341e 100644 --- a/src/tincctl.c +++ b/src/tincctl.c @@ -24,6 +24,7 @@ #include "xalloc.h" #include "protocol.h" #include "control_common.h" +#include "ecdsagen.h" #include "rsagen.h" #include "utils.h" #include "tincctl.h" @@ -38,19 +39,12 @@ static bool show_help = false; /* If nonzero, print the version on standard output and exit. */ static bool show_version = false; -/* If nonzero, it will attempt to kill a running tincd and exit. */ -static int kill_tincd = 0; - -/* If nonzero, generate public/private keypair for this host/net. */ -static int generate_keys = 0; - static char *name = NULL; static char *identname = NULL; /* program name for syslog */ -static char *controlcookiename = NULL; /* cookie file location */ +static char *pidfilename = NULL; /* pid file location */ static char controlcookie[1024]; char *netname = NULL; char *confbase = NULL; -static char *host = NULL; #ifdef HAVE_MINGW static struct WSAData wsa_state; @@ -58,11 +52,10 @@ static struct WSAData wsa_state; static struct option const long_options[] = { {"config", required_argument, NULL, 'c'}, - {"host", required_argument, NULL, 'h'}, {"net", required_argument, NULL, 'n'}, {"help", no_argument, NULL, 1}, {"version", no_argument, NULL, 2}, - {"controlcookie", required_argument, NULL, 5}, + {"pidfile", required_argument, NULL, 5}, {NULL, 0, NULL, 0} }; @@ -73,11 +66,11 @@ static void usage(bool status) { else { printf("Usage: %s [options] command\n\n", program_name); printf("Valid options are:\n" - " -c, --config=DIR Read configuration options from DIR.\n" - " -n, --net=NETNAME Connect to net NETNAME.\n" - " --controlcookie=FILENAME Read control socket from FILENAME.\n" - " --help Display this help and exit.\n" - " --version Output version information and exit.\n" + " -c, --config=DIR Read configuration options from DIR.\n" + " -n, --net=NETNAME Connect to net NETNAME.\n" + " --pidfile=FILENAME Read control cookie from FILENAME.\n" + " --help Display this help and exit.\n" + " --version Output version information and exit.\n" "\n" "Valid commands are:\n" " start Start tincd.\n" @@ -85,7 +78,9 @@ static void usage(bool status) { " restart Restart tincd.\n" " reload Reload configuration of running tincd.\n" " pid Show PID of currently running tincd.\n" - " generate-keys [bits] Generate a new public/private keypair.\n" + " generate-keys [bits] Generate new RSA and ECDSA public/private keypairs.\n" + " generate-rsa-keys [bits] Generate a new RSA public/private keypair.\n" + " generate-ecdsa-keys Generate a new ECDSA public/private keypair.\n" " dump Dump a list of one of the following things:\n" " nodes - all known nodes in the VPN\n" " edges - all known connections in the VPN\n" @@ -110,7 +105,7 @@ static bool parse_options(int argc, char **argv) { int r; int option_index = 0; - while((r = getopt_long(argc, argv, "c:n:h:", long_options, &option_index)) != EOF) { + while((r = getopt_long(argc, argv, "c:n:", long_options, &option_index)) != EOF) { switch (r) { case 0: /* long option */ break; @@ -119,10 +114,6 @@ static bool parse_options(int argc, char **argv) { confbase = xstrdup(optarg); break; - case 'h': /* alternative host to connect to */ - host = xstrdup(optarg); - break; - case 'n': /* net name given */ netname = xstrdup(optarg); break; @@ -136,7 +127,7 @@ static bool parse_options(int argc, char **argv) { break; case 5: /* open control socket here */ - controlcookiename = xstrdup(optarg); + pidfilename = xstrdup(optarg); break; case '?': @@ -156,7 +147,6 @@ FILE *ask_and_open(const char *filename, const char *what, const char *mode) { char *directory; char buf[PATH_MAX]; char buf2[PATH_MAX]; - size_t len; /* Check stdin and stdout */ if(isatty(0) && isatty(1)) { @@ -171,7 +161,7 @@ FILE *ask_and_open(const char *filename, const char *what, const char *mode) { return NULL; } - len = strlen(buf); + size_t len = strlen(buf); if(len) buf[--len] = 0; @@ -204,11 +194,70 @@ FILE *ask_and_open(const char *filename, const char *what, const char *mode) { return r; } +/* + Generate a public/private ECDSA keypair, and ask for a file to store + them in. +*/ +static bool ecdsa_keygen() { + ecdsa_t key; + FILE *f; + char *filename; + + fprintf(stderr, "Generating ECDSA keypair:\n"); + + if(!ecdsa_generate(&key)) { + fprintf(stderr, "Error during key generation!\n"); + return false; + } else + fprintf(stderr, "Done.\n"); + + xasprintf(&filename, "%s/ecdsa_key.priv", confbase); + f = ask_and_open(filename, "private ECDSA key", "a"); + + if(!f) + return false; + +#ifdef HAVE_FCHMOD + /* Make it unreadable for others. */ + fchmod(fileno(f), 0600); +#endif + + if(ftell(f)) + fprintf(stderr, "Appending key to existing contents.\nMake sure only one key is stored in the file.\n"); + + ecdsa_write_pem_private_key(&key, f); + + fclose(f); + free(filename); + + if(name) + xasprintf(&filename, "%s/hosts/%s", confbase, name); + else + xasprintf(&filename, "%s/ecdsa_key.pub", confbase); + + f = ask_and_open(filename, "public ECDSA key", "a"); + + if(!f) + return false; + + if(ftell(f)) + fprintf(stderr, "Appending key to existing contents.\nMake sure only one key is stored in the file.\n"); + + char *pubkey = ecdsa_get_base64_public_key(&key); + fprintf(f, "ECDSAPublicKey = %s\n", pubkey); + free(pubkey); + + fclose(f); + free(filename); + + return true; +} + /* Generate a public/private RSA keypair, and ask for a file to store them in. */ -static bool keygen(int bits) { +static bool rsa_keygen(int bits) { rsa_t key; FILE *f; char *filename; @@ -286,16 +335,16 @@ static void make_names(void) { xasprintf(&confbase, "%s", installdir); } } - if(!controlcookiename) - xasprintf(&controlcookiename, "%s/cookie", confbase); + if(!pidfilename) + xasprintf(&pidfilename, "%s/pid", confbase); RegCloseKey(key); if(*installdir) return; } #endif - if(!controlcookiename) - xasprintf(&controlcookiename, "%s/run/%s.cookie", LOCALSTATEDIR, identname); + if(!pidfilename) + xasprintf(&pidfilename, "%s/run/%s.pid", LOCALSTATEDIR, identname); if(netname) { if(!confbase) @@ -436,6 +485,7 @@ void pcap(int fd, FILE *out) { int main(int argc, char *argv[], char *envp[]) { int fd; int result; + char host[128]; char port[128]; int pid; @@ -447,8 +497,8 @@ int main(int argc, char *argv[], char *envp[]) { make_names(); if(show_version) { - printf("%s version %s (built %s %s, protocol %d)\n", PACKAGE, - VERSION, __DATE__, __TIME__, PROT_CURRENT); + printf("%s version %s (built %s %s, protocol %d.%d)\n", PACKAGE, + VERSION, __DATE__, __TIME__, PROT_MAJOR, PROT_MINOR); printf("Copyright (C) 1998-2009 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" @@ -471,8 +521,16 @@ int main(int argc, char *argv[], char *envp[]) { // First handle commands that don't involve connecting to a running tinc daemon. + if(!strcasecmp(argv[optind], "generate-rsa-keys")) { + return !rsa_keygen(optind > argc ? atoi(argv[optind + 1]) : 2048); + } + + if(!strcasecmp(argv[optind], "generate-ecdsa-keys")) { + return !ecdsa_keygen(); + } + if(!strcasecmp(argv[optind], "generate-keys")) { - return !keygen(optind > argc ? atoi(argv[optind + 1]) : 2048); + return !(rsa_keygen(optind > argc ? atoi(argv[optind + 1]) : 2048) && ecdsa_keygen()); } if(!strcasecmp(argv[optind], "start")) { @@ -489,13 +547,13 @@ int main(int argc, char *argv[], char *envp[]) { * ancestors are writable only by trusted users, which we don't verify. */ - FILE *f = fopen(controlcookiename, "r"); + FILE *f = fopen(pidfilename, "r"); if(!f) { - fprintf(stderr, "Could not open control socket cookie file %s: %s\n", controlcookiename, strerror(errno)); + fprintf(stderr, "Could not open pid file %s: %s\n", pidfilename, strerror(errno)); return 1; } - if(fscanf(f, "%1024s %128s %d", controlcookie, port, &pid) != 3) { - fprintf(stderr, "Could not parse control socket cookie file %s\n", controlcookiename); + if(fscanf(f, "%20d %1024s %128s port %128s", &pid, controlcookie, host, port) != 4) { + fprintf(stderr, "Could not parse pid file %s\n", pidfilename); return 1; } @@ -535,8 +593,7 @@ int main(int argc, char *argv[], char *envp[]) { #endif if(connect(fd, res->ai_addr, res->ai_addrlen) < 0) { - - fprintf(stderr, "Cannot connect to %s: %s\n", controlcookiename, sockstrerror(sockerrno)); + fprintf(stderr, "Cannot connect to %s port %s: %s\n", host ?: "localhost", port, sockstrerror(sockerrno)); return 1; }