/* gpgsm.c - GnuPG for S/MIME * Copyright (C) 2001, 2002 Free Software Foundation, Inc. * * This file is part of GnuPG. * * GnuPG is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * GnuPG is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA */ #include #include #include #include #include #include #include #include #include #include "gpgsm.h" #include "../assuan/assuan.h" /* malloc hooks */ #include "../kbx/keybox.h" /* malloc hooks */ #include "i18n.h" #include "keydb.h" #include "sysutils.h" enum cmd_and_opt_values { aNull = 0, oArmor = 'a', aDetachedSign = 'b', aSym = 'c', aDecrypt = 'd', aEncr = 'e', oInteractive = 'i', oKOption = 'k', oDryRun = 'n', oOutput = 'o', oQuiet = 'q', oRecipient = 'r', aSign = 's', oTextmodeShort= 't', oUser = 'u', oVerbose = 'v', oCompress = 'z', oNotation = 'N', oBatch = 500, aClearsign, aStore, aKeygen, aSignEncr, aSignKey, aLSignKey, aListPackets, aEditKey, aDeleteKey, aImport, aVerify, aVerifyFiles, aListKeys, aListExternalKeys, aListSigs, aListSecretKeys, aSendKeys, aRecvKeys, aExport, aCheckKeys, /* nyi */ aServer, aLearnCard, aCallDirmngr, aCallProtectTool, aPasswd, oOptions, oDebug, oDebugAll, oDebugWait, oDebugNoChainValidation, oLogFile, oEnableSpecialFilenames, oAgentProgram, oDisplay, oTTYname, oTTYtype, oLCctype, oLCmessages, oDirmngrProgram, oFakedSystemTime, oAssumeArmor, oAssumeBase64, oAssumeBinary, oBase64, oNoArmor, oDisableCRLChecks, oEnableCRLChecks, oIncludeCerts, oPolicyFile, oDisablePolicyChecks, oEnablePolicyChecks, oAutoIssuerKeyRetrieve, oTextmode, oFingerprint, oWithFingerprint, oAnswerYes, oAnswerNo, oKeyring, oSecretKeyring, oDefaultKey, oDefRecipient, oDefRecipientSelf, oNoDefRecipient, oStatusFD, oNoComment, oNoVersion, oEmitVersion, oCompletesNeeded, oMarginalsNeeded, oMaxCertDepth, oLoadExtension, oRFC1991, oOpenPGP, oCipherAlgo, oDigestAlgo, oCompressAlgo, oCommandFD, oNoVerbose, oTrustDBName, oNoSecmemWarn, oNoDefKeyring, oNoGreeting, oNoTTY, oNoOptions, oNoBatch, oHomedir, oWithColons, oWithKeyData, oSkipVerify, oCompressKeys, oCompressSigs, oAlwaysTrust, oRunAsShmCP, oSetFilename, oSetPolicyURL, oUseEmbeddedFilename, oComment, oDefaultComment, oThrowKeyid, oForceV3Sigs, oForceMDC, oS2KMode, oS2KDigest, oS2KCipher, oCharset, oNotDashEscaped, oEscapeFrom, oLockOnce, oLockMultiple, oLockNever, oKeyServer, oEncryptTo, oNoEncryptTo, oLoggerFD, oUtf8Strings, oNoUtf8Strings, oDisableCipherAlgo, oDisablePubkeyAlgo, oAllowNonSelfsignedUID, oAllowFreeformUID, oNoLiteral, oSetFilesize, oHonorHttpProxy, oFastListMode, oListOnly, oIgnoreTimeConflict, oNoRandomSeedFile, oNoAutoKeyRetrieve, oUseAgent, oMergeOnly, oTryAllSecrets, oTrustedKey, oEmuMDEncodeBug, aDummy }; static ARGPARSE_OPTS opts[] = { { 300, NULL, 0, N_("@Commands:\n ") }, { aSign, "sign", 256, N_("|[file]|make a signature")}, { aClearsign, "clearsign", 256, N_("|[file]|make a clear text signature") }, { aDetachedSign, "detach-sign", 256, N_("make a detached signature")}, { aEncr, "encrypt", 256, N_("encrypt data")}, { aSym, "symmetric", 256, N_("encryption only with symmetric cipher")}, { aDecrypt, "decrypt", 256, N_("decrypt data (default)")}, { aVerify, "verify" , 256, N_("verify a signature")}, { aVerifyFiles, "verify-files" , 256, "@" }, { aListKeys, "list-keys", 256, N_("list keys")}, { aListExternalKeys, "list-external-keys", 256, N_("list external keys")}, { aListSecretKeys, "list-secret-keys", 256, N_("list secret keys")}, { aListSigs, "list-sigs", 256, N_("list certificate chain")}, { aListSigs, "check-sigs",256, "@"}, { oFingerprint, "fingerprint", 256, N_("list keys and fingerprints")}, { aKeygen, "gen-key", 256, N_("generate a new key pair")}, { aDeleteKey, "delete-key",256, N_("remove key from the public keyring")}, { aSendKeys, "send-keys" , 256, N_("export keys to a key server") }, { aRecvKeys, "recv-keys" , 256, N_("import keys from a key server") }, { aImport, "import", 256 , N_("import certificates")}, { aExport, "export", 256 , N_("export certificates")}, { aLearnCard, "learn-card", 256 ,N_("register a smartcard")}, { aServer, "server", 256, N_("run in server mode")}, { aCallDirmngr, "call-dirmngr", 256, N_("pass a command to the dirmngr")}, { aCallProtectTool, "call-protect-tool", 256, N_("invoke gpg-protect-tool")}, { aPasswd, "passwd", 256, N_("change a passphrase")}, { 301, NULL, 0, N_("@\nOptions:\n ") }, { oArmor, "armor", 0, N_("create ascii armored output")}, { oArmor, "armour", 0, "@" }, { oBase64, "base64", 0, N_("create base-64 encoded output")}, { oAssumeArmor, "assume-armor", 0, N_("assume input is in PEM format")}, { oAssumeBase64, "assume-base64", 0, N_("assume input is in base-64 format")}, { oAssumeBinary, "assume-binary", 0, N_("assume input is in binary format")}, { oRecipient, "recipient", 2, N_("|NAME|encrypt for NAME")}, { oDisableCRLChecks, "disable-crl-checks", 0, N_("never consult a CRL")}, { oEnableCRLChecks, "enable-crl-checks", 0, "@"}, { oIncludeCerts, "include-certs", 1, N_("|N|number of certificates to include") }, { oPolicyFile, "policy-file", 2, N_("|FILE|take policy information from FILE") }, { oDisablePolicyChecks, "disable-policy-checks", 0, N_("do not check certificate policies")}, { oEnablePolicyChecks, "enable-policy-checks", 0, "@"}, { oAutoIssuerKeyRetrieve, "auto-issuer-key-retrieve", 0, N_("fetch missing issuer certificates")}, #if 0 { oDefRecipient, "default-recipient" ,2, N_("|NAME|use NAME as default recipient")}, { oDefRecipientSelf, "default-recipient-self" ,0, N_("use the default key as default recipient")}, { oNoDefRecipient, "no-default-recipient", 0, "@" }, { oEncryptTo, "encrypt-to", 2, "@" }, { oNoEncryptTo, "no-encrypt-to", 0, "@" }, #endif { oUser, "local-user",2, N_("use this user-id to sign or decrypt")}, #if 0 { oCompress, NULL, 1, N_("|N|set compress level N (0 disables)") }, { oTextmodeShort, NULL, 0, "@"}, { oTextmode, "textmode", 0, N_("use canonical text mode")}, #endif { oOutput, "output", 2, N_("use as output file")}, { oVerbose, "verbose", 0, N_("verbose") }, { oQuiet, "quiet", 0, N_("be somewhat more quiet") }, { oNoTTY, "no-tty", 0, N_("don't use the terminal at all") }, { oLogFile, "log-file" ,2, N_("use a log file for the server")}, #if 0 { oForceV3Sigs, "force-v3-sigs", 0, N_("force v3 signatures") }, { oForceMDC, "force-mdc", 0, N_("always use a MDC for encryption") }, #endif { oDryRun, "dry-run", 0, N_("do not make any changes") }, /*{ oInteractive, "interactive", 0, N_("prompt before overwriting") }, */ /*{ oUseAgent, "use-agent",0, N_("use the gpg-agent")},*/ { oBatch, "batch", 0, N_("batch mode: never ask")}, { oAnswerYes, "yes", 0, N_("assume yes on most questions")}, { oAnswerNo, "no", 0, N_("assume no on most questions")}, { oKeyring, "keyring" ,2, N_("add this keyring to the list of keyrings")}, { oSecretKeyring, "secret-keyring" ,2, N_("add this secret keyring to the list")}, { oDefaultKey, "default-key" ,2, N_("|NAME|use NAME as default secret key")}, { oKeyServer, "keyserver",2, N_("|HOST|use this keyserver to lookup keys")}, { oCharset, "charset" , 2, N_("|NAME|set terminal charset to NAME") }, { oOptions, "options" , 2, N_("read options from file")}, { oDebug, "debug" ,4|16, "@"}, { oDebugAll, "debug-all" ,0, "@"}, { oDebugWait, "debug-wait" ,1, "@"}, { oDebugNoChainValidation, "debug-no-chain-validation" ,0, "@"}, { oStatusFD, "status-fd" ,1, N_("|FD|write status info to this FD") }, { aDummy, "no-comment", 0, "@"}, { aDummy, "completes-needed", 1, "@"}, { aDummy, "marginals-needed", 1, "@"}, { oMaxCertDepth, "max-cert-depth", 1, "@" }, { aDummy, "trusted-key", 2, "@"}, { oLoadExtension, "load-extension" ,2, N_("|FILE|load extension module FILE")}, { aDummy, "rfc1991", 0, "@"}, { aDummy, "openpgp", 0, "@"}, { aDummy, "s2k-mode", 1, "@"}, { aDummy, "s2k-digest-algo",2, "@"}, { aDummy, "s2k-cipher-algo",2, "@"}, { oCipherAlgo, "cipher-algo", 2 , N_("|NAME|use cipher algorithm NAME")}, { oDigestAlgo, "digest-algo", 2 , N_("|NAME|use message digest algorithm NAME")}, #if 0 { oCompressAlgo, "compress-algo", 1 , N_("|N|use compress algorithm N")}, #endif { aDummy, "throw-keyid", 0, "@"}, { aDummy, "notation-data", 2, "@"}, { 302, NULL, 0, N_( "@\n(See the man page for a complete listing of all commands and options)\n" )}, { 303, NULL, 0, N_("@\nExamples:\n\n" " -se -r Bob [file] sign and encrypt for user Bob\n" " --clearsign [file] make a clear text signature\n" " --detach-sign [file] make a detached signature\n" " --list-keys [names] show keys\n" " --fingerprint [names] show fingerprints\n" ) }, /* hidden options */ { oNoVerbose, "no-verbose", 0, "@"}, { oEnableSpecialFilenames, "enable-special-filenames", 0, "@" }, { oTrustDBName, "trustdb-name", 2, "@" }, { oNoSecmemWarn, "no-secmem-warning", 0, "@" }, { oNoArmor, "no-armor", 0, "@"}, { oNoArmor, "no-armour", 0, "@"}, { oNoDefKeyring, "no-default-keyring", 0, "@" }, { oNoGreeting, "no-greeting", 0, "@" }, { oNoOptions, "no-options", 0, "@" }, /* shortcut for --options /dev/null */ { oHomedir, "homedir", 2, "@" }, /* defaults to "~/.gnupg" */ { oAgentProgram, "agent-program", 2 , "@" }, { oDisplay, "display", 2, "@" }, { oTTYname, "ttyname", 2, "@" }, { oTTYtype, "ttytype", 2, "@" }, { oLCctype, "lc-ctype", 2, "@" }, { oLCmessages, "lc-messages", 2, "@" }, { oDirmngrProgram, "dirmngr-program", 2 , "@" }, { oFakedSystemTime, "faked-system-time", 4, "@" }, /* (epoch time) */ { oNoBatch, "no-batch", 0, "@" }, { oWithColons, "with-colons", 0, "@"}, { oWithKeyData,"with-key-data", 0, "@"}, { aListKeys, "list-key", 0, "@" }, /* alias */ { aListSigs, "list-sig", 0, "@" }, /* alias */ { aListSigs, "check-sig",0, "@" }, /* alias */ { oSkipVerify, "skip-verify",0, "@" }, { oCompressKeys, "compress-keys",0, "@"}, { oCompressSigs, "compress-sigs",0, "@"}, { oAlwaysTrust, "always-trust", 0, "@"}, { oNoVersion, "no-version", 0, "@"}, { oLockOnce, "lock-once", 0, "@" }, { oLockMultiple, "lock-multiple", 0, "@" }, { oLockNever, "lock-never", 0, "@" }, { oLoggerFD, "logger-fd",1, "@" }, { oWithFingerprint, "with-fingerprint", 0, "@" }, { oDisableCipherAlgo, "disable-cipher-algo", 2, "@" }, { oDisablePubkeyAlgo, "disable-pubkey-algo", 2, "@" }, { oHonorHttpProxy,"honor-http-proxy", 0, "@" }, { oListOnly, "list-only", 0, "@"}, { oIgnoreTimeConflict, "ignore-time-conflict", 0, "@" }, { oNoRandomSeedFile, "no-random-seed-file", 0, "@" }, {0} }; int gpgsm_errors_seen = 0; /* It is possible that we are currentlu running under setuid permissions */ static int maybe_setuid = 1; /* Option --enable-special-filenames */ static int allow_special_filenames; static char *build_list (const char *text, const char *(*mapf)(int), int (*chkf)(int)); static void set_cmd (enum cmd_and_opt_values *ret_cmd, enum cmd_and_opt_values new_cmd ); static void emergency_cleanup (void); static int check_special_filename (const char *fname); static int open_read (const char *filename); static FILE *open_fwrite (const char *filename); static void run_protect_tool (int argc, char **argv); static int our_pk_test_algo (int algo) { return 1; } static int our_cipher_test_algo (int algo) { return 1; } static int our_md_test_algo (int algo) { return 1; } static const char * my_strusage( int level ) { static char *digests, *pubkeys, *ciphers; const char *p; switch (level) { case 11: p = "gpgsm (GnuPG)"; break; case 13: p = VERSION; break; case 17: p = PRINTABLE_OS_NAME; break; case 19: p = _("Please report bugs to <" PACKAGE_BUGREPORT ">.\n"); break; case 1: case 40: p = _("Usage: gpgsm [options] [files] (-h for help)"); break; case 41: p = _("Syntax: gpgsm [options] [files]\n" "sign, check, encrypt or decrypt using the S/MIME protocol\n" "default operation depends on the input data\n"); break; case 31: p = "\nHome: "; break; case 32: p = opt.homedir; break; case 33: p = _("\nSupported algorithms:\n"); break; case 34: if (!ciphers) ciphers = build_list ("Cipher: ", gcry_cipher_algo_name, our_cipher_test_algo ); p = ciphers; break; case 35: if (!pubkeys) pubkeys = build_list ("Pubkey: ", gcry_pk_algo_name, our_pk_test_algo ); p = pubkeys; break; case 36: if (!digests) digests = build_list("Hash: ", gcry_md_algo_name, our_md_test_algo ); p = digests; break; default: p = NULL; break; } return p; } static char * build_list (const char *text, const char * (*mapf)(int), int (*chkf)(int)) { int i; size_t n=strlen(text)+2; char *list, *p; if (maybe_setuid) { gcry_control (GCRYCTL_DROP_PRIVS); /* drop setuid */ } for (i=1; i < 110; i++ ) if (!chkf(i)) n += strlen(mapf(i)) + 2; list = xmalloc (21 + n); *list = 0; for (p=NULL, i=1; i < 110; i++) { if (!chkf(i)) { if( !p ) p = stpcpy (list, text ); else p = stpcpy (p, ", "); p = stpcpy (p, mapf(i) ); } } if (p) p = stpcpy(p, "\n" ); return list; } static void i18n_init(void) { #ifdef USE_SIMPLE_GETTEXT set_gettext_file (PACKAGE); #else # ifdef ENABLE_NLS # ifdef HAVE_LC_MESSAGES setlocale (LC_TIME, ""); setlocale (LC_MESSAGES, ""); # else setlocale (LC_ALL, "" ); # endif bindtextdomain (PACKAGE, LOCALEDIR); textdomain (PACKAGE); # endif #endif } static void wrong_args (const char *text) { fputs (_("usage: gpgsm [options] "), stderr); fputs (text, stderr); putc ('\n', stderr); gpgsm_exit (2); } static void set_debug(void) { if (opt.debug & DBG_MPI_VALUE) gcry_control (GCRYCTL_SET_DEBUG_FLAGS, 2); if (opt.debug & DBG_CRYPTO_VALUE ) gcry_control (GCRYCTL_SET_DEBUG_FLAGS, 1); } static void set_cmd (enum cmd_and_opt_values *ret_cmd, enum cmd_and_opt_values new_cmd) { enum cmd_and_opt_values cmd = *ret_cmd; if (!cmd || cmd == new_cmd) cmd = new_cmd; else if ( cmd == aSign && new_cmd == aEncr ) cmd = aSignEncr; else if ( cmd == aEncr && new_cmd == aSign ) cmd = aSignEncr; else if ( (cmd == aSign && new_cmd == aClearsign) || (cmd == aClearsign && new_cmd == aSign) ) cmd = aClearsign; else { log_error(_("conflicting commands\n")); gpgsm_exit(2); } *ret_cmd = cmd; } int main ( int argc, char **argv) { ARGPARSE_ARGS pargs; int orig_argc; char **orig_argv; const char *fname; /* char *username;*/ int may_coredump; STRLIST sl, remusr= NULL, locusr=NULL; STRLIST nrings=NULL; int detached_sig = 0; FILE *configfp = NULL; char *configname = NULL; unsigned configlineno; int parse_debug = 0; int no_more_options = 0; int default_config =1; int default_keyring = 1; char *logfile = NULL; int greeting = 0; int nogreeting = 0; int debug_wait = 0; int use_random_seed = 1; int with_fpr = 0; char *def_digest_string = NULL; enum cmd_and_opt_values cmd = 0; struct server_control_s ctrl; CERTLIST recplist = NULL; CERTLIST signerlist = NULL; /* trap_unaligned ();*/ set_strusage (my_strusage); gcry_control (GCRYCTL_SUSPEND_SECMEM_WARN); /* We don't need any locking in libgcrypt unless we use any kind of threading. */ gcry_control (GCRYCTL_DISABLE_INTERNAL_LOCKING); /* Please note that we may running SUID(ROOT), so be very CAREFUL when adding any stuff between here and the call to secmem_init() somewhere after the option parsing */ log_set_prefix ("gpgsm", 1); /* check that the libraries are suitable. Do it here because the option parse may need services of the library */ if (!gcry_check_version (NEED_LIBGCRYPT_VERSION) ) { log_fatal( _("libgcrypt is too old (need %s, have %s)\n"), NEED_LIBGCRYPT_VERSION, gcry_check_version (NULL) ); } if (!ksba_check_version (NEED_KSBA_VERSION) ) { log_fatal( _("libksba is too old (need %s, have %s)\n"), NEED_KSBA_VERSION, ksba_check_version (NULL) ); } gcry_control (GCRYCTL_USE_SECURE_RNDPOOL); may_coredump = disable_core_dumps (); gnupg_init_signals (0, emergency_cleanup); create_dotlock (NULL); /* register locking cleanup */ i18n_init(); opt.def_cipher_algoid = "1.2.840.113549.3.7"; /*des-EDE3-CBC*/ #ifdef __MINGW32__ opt.homedir = read_w32_registry_string ( NULL, "Software\\GNU\\GnuPG", "HomeDir" ); #else opt.homedir = getenv ("GNUPGHOME"); #endif if (!opt.homedir || !*opt.homedir ) opt.homedir = GNUPG_DEFAULT_HOMEDIR; /* first check whether we have a config file on the commandline */ orig_argc = argc; orig_argv = argv; pargs.argc = &argc; pargs.argv = &argv; pargs.flags= 1|(1<<6); /* do not remove the args, ignore version */ while (arg_parse( &pargs, opts)) { if (pargs.r_opt == oDebug || pargs.r_opt == oDebugAll) parse_debug++; else if (pargs.r_opt == oOptions) { /* yes there is one, so we do not try the default one but read the config file when it is encountered at the commandline */ default_config = 0; } else if (pargs.r_opt == oNoOptions) default_config = 0; /* --no-options */ else if (pargs.r_opt == oHomedir) opt.homedir = pargs.r.ret_str; else if (pargs.r_opt == aCallProtectTool) break; /* This break makes sure that --version and --help are passed to the protect-tool. */ } /* initialize the secure memory. */ gcry_control (GCRYCTL_INIT_SECMEM, 16384, 0); maybe_setuid = 0; /* Now we are now working under our real uid */ ksba_set_malloc_hooks (gcry_malloc, gcry_realloc, gcry_free ); assuan_set_malloc_hooks (gcry_malloc, gcry_realloc, gcry_free); keybox_set_malloc_hooks (gcry_malloc, gcry_realloc, gcry_free); /* Setup a default control structure for command line mode */ memset (&ctrl, 0, sizeof ctrl); gpgsm_init_default_ctrl (&ctrl); ctrl.no_server = 1; ctrl.status_fd = -1; /* not status output */ ctrl.autodetect_encoding = 1; /* set the default option file */ if (default_config ) configname = make_filename (opt.homedir, "gpgsm.conf", NULL); /* cet the default policy file */ opt.policy_file = make_filename (opt.homedir, "policies.txt", NULL); argc = orig_argc; argv = orig_argv; pargs.argc = &argc; pargs.argv = &argv; pargs.flags = 1; /* do not remove the args */ next_pass: if (configname) { configlineno = 0; configfp = fopen (configname, "r"); if (!configfp) { if (default_config) { if (parse_debug) log_info (_("NOTE: no default option file `%s'\n"), configname); } else { log_error (_("option file `%s': %s\n"), configname, strerror(errno)); gpgsm_exit(2); } xfree(configname); configname = NULL; } if (parse_debug && configname) log_info (_("reading options from `%s'\n"), configname); default_config = 0; } while (!no_more_options && optfile_parse (configfp, configname, &configlineno, &pargs, opts)) { switch (pargs.r_opt) { case aServer: opt.batch = 1; set_cmd (&cmd, aServer); break; case aCallDirmngr: opt.batch = 1; set_cmd (&cmd, aCallDirmngr); break; case aCallProtectTool: opt.batch = 1; set_cmd (&cmd, aCallProtectTool); no_more_options = 1; /* Stop parsing. */ break; case aCheckKeys: set_cmd (&cmd, aCheckKeys); break; case aImport: set_cmd (&cmd, aImport); break; case aSendKeys: set_cmd (&cmd, aSendKeys); break; case aRecvKeys: set_cmd (&cmd, aRecvKeys); break; case aExport: set_cmd (&cmd, aExport); break; case aListKeys: set_cmd (&cmd, aListKeys); break; case aListExternalKeys: set_cmd (&cmd, aListExternalKeys); break; case aListSecretKeys: set_cmd (&cmd, aListSecretKeys); break; case aListSigs: set_cmd (&cmd, aListSigs); break; case aLearnCard: set_cmd (&cmd, aLearnCard); break; case aPasswd: set_cmd (&cmd, aPasswd); break; case aDeleteKey: set_cmd (&cmd, aDeleteKey); /*greeting=1;*/ break; case aDetachedSign: detached_sig = 1; set_cmd (&cmd, aSign ); break; case aSym: set_cmd (&cmd, aSym); break; case aDecrypt: set_cmd (&cmd, aDecrypt); break; case aEncr: set_cmd (&cmd, aEncr); break; case aSign: set_cmd (&cmd, aSign ); break; case aKeygen: set_cmd (&cmd, aKeygen); greeting=1; break; case aClearsign: set_cmd (&cmd, aClearsign); break; case aVerify: set_cmd (&cmd, aVerify); break; /* output encoding selection */ case oArmor: ctrl.create_pem = 1; break; case oBase64: ctrl.create_pem = 0; ctrl.create_base64 = 1; break; case oNoArmor: ctrl.create_pem = 0; ctrl.create_base64 = 0; break; /* Input encoding selection */ case oAssumeArmor: ctrl.autodetect_encoding = 0; ctrl.is_pem = 1; ctrl.is_base64 = 0; break; case oAssumeBase64: ctrl.autodetect_encoding = 0; ctrl.is_pem = 0; ctrl.is_base64 = 1; break; case oAssumeBinary: ctrl.autodetect_encoding = 0; ctrl.is_pem = 0; ctrl.is_base64 = 0; break; case oDisableCRLChecks: opt.no_crl_check = 1; break; case oEnableCRLChecks: opt.no_crl_check = 0; break; case oIncludeCerts: ctrl.include_certs = pargs.r.ret_int; break; case oPolicyFile: xfree (opt.policy_file); if (*pargs.r.ret_str) opt.policy_file = xstrdup (pargs.r.ret_str); else opt.policy_file = NULL; break; case oDisablePolicyChecks: opt.no_policy_check = 1; break; case oEnablePolicyChecks: opt.no_policy_check = 0; break; case oAutoIssuerKeyRetrieve: opt.auto_issuer_key_retrieve = 1; break; case oOutput: opt.outfile = pargs.r.ret_str; break; case oQuiet: opt.quiet = 1; break; case oNoTTY: /* fixme:tty_no_terminal(1);*/ break; case oDryRun: opt.dry_run = 1; break; case oVerbose: opt.verbose++; gcry_control (GCRYCTL_SET_VERBOSITY, (int)opt.verbose); break; case oNoVerbose: opt.verbose = 0; gcry_control (GCRYCTL_SET_VERBOSITY, (int)opt.verbose); break; case oLogFile: logfile = pargs.r.ret_str; break; case oBatch: opt.batch = 1; greeting = 0; break; case oNoBatch: opt.batch = 0; break; case oAnswerYes: opt.answer_yes = 1; break; case oAnswerNo: opt.answer_no = 1; break; case oKeyring: append_to_strlist (&nrings, pargs.r.ret_str); break; case oDebug: opt.debug |= pargs.r.ret_ulong; break; case oDebugAll: opt.debug = ~0; break; case oDebugWait: debug_wait = pargs.r.ret_int; break; case oDebugNoChainValidation: opt.no_chain_validation = 1; break; case oStatusFD: ctrl.status_fd = pargs.r.ret_int; break; case oLoggerFD: log_set_fd (pargs.r.ret_int ); break; case oWithFingerprint: with_fpr=1; /*fall thru*/ case oFingerprint: opt.fingerprint++; break; case oOptions: /* config files may not be nested (silently ignore them) */ if (!configfp) { xfree(configname); configname = xstrdup (pargs.r.ret_str); goto next_pass; } break; case oNoOptions: break; /* no-options */ case oHomedir: opt.homedir = pargs.r.ret_str; break; case oAgentProgram: opt.agent_program = pargs.r.ret_str; break; case oDisplay: opt.display = xstrdup (pargs.r.ret_str); break; case oTTYname: opt.ttyname = xstrdup (pargs.r.ret_str); break; case oTTYtype: opt.ttytype = xstrdup (pargs.r.ret_str); break; case oLCctype: opt.lc_ctype = xstrdup (pargs.r.ret_str); break; case oLCmessages: opt.lc_messages = xstrdup (pargs.r.ret_str); break; case oDirmngrProgram: opt.dirmngr_program = pargs.r.ret_str; break; case oFakedSystemTime: gnupg_set_time ( (time_t)pargs.r.ret_ulong, 0); break; case oNoDefKeyring: default_keyring = 0; break; case oNoGreeting: nogreeting = 1; break; case oDefaultKey: /* fixme:opt.def_secret_key = pargs.r.ret_str;*/ break; case oDefRecipient: if (*pargs.r.ret_str) opt.def_recipient = xstrdup (pargs.r.ret_str); break; case oDefRecipientSelf: xfree (opt.def_recipient); opt.def_recipient = NULL; opt.def_recipient_self = 1; break; case oNoDefRecipient: xfree (opt.def_recipient); opt.def_recipient = NULL; opt.def_recipient_self = 0; break; case oWithKeyData: opt.with_key_data=1; /* fall thru */ case oWithColons: ctrl.with_colons = 1; break; case oSkipVerify: opt.skip_verify=1; break; case oNoEncryptTo: /*fixme: opt.no_encrypt_to = 1;*/ break; case oEncryptTo: /* store the recipient in the second list */ sl = add_to_strlist (&remusr, pargs.r.ret_str); sl->flags = 1; break; case oRecipient: /* store the recipient */ add_to_strlist ( &remusr, pargs.r.ret_str); break; case oTextmodeShort: /*fixme:opt.textmode = 2;*/ break; case oTextmode: /*fixme:opt.textmode=1;*/ break; case oUser: /* store the local users, the first one is the default */ if (!opt.local_user) opt.local_user = pargs.r.ret_str; add_to_strlist (&locusr, pargs.r.ret_str); break; case oNoSecmemWarn: gcry_control (GCRYCTL_DISABLE_SECMEM_WARN); break; case oCipherAlgo: opt.def_cipher_algoid = pargs.r.ret_str; break; case oDisableCipherAlgo: { int algo = gcry_cipher_map_name (pargs.r.ret_str); gcry_cipher_ctl (NULL, GCRYCTL_DISABLE_ALGO, &algo, sizeof algo); } break; case oDisablePubkeyAlgo: { int algo = gcry_pk_map_name (pargs.r.ret_str); gcry_pk_ctl (GCRYCTL_DISABLE_ALGO,&algo, sizeof algo ); } break; case oIgnoreTimeConflict: opt.ignore_time_conflict = 1; break; case oNoRandomSeedFile: use_random_seed = 0; break; case oEnableSpecialFilenames: allow_special_filenames =1; break; case aDummy: break; default: pargs.err = configfp? 1:2; break; } } if (configfp) { fclose (configfp); configfp = NULL; xfree (configname); configname = NULL; goto next_pass; } xfree (configname); configname = NULL; if (log_get_errorcount(0)) gpgsm_exit(2); if (nogreeting) greeting = 0; if (greeting) { fprintf(stderr, "%s %s; %s\n", strusage(11), strusage(13), strusage(14) ); fprintf(stderr, "%s\n", strusage(15) ); } # ifdef IS_DEVELOPMENT_VERSION if (!opt.batch) { log_info ("NOTE: THIS IS A DEVELOPMENT VERSION!\n"); log_info ("It is only intended for test purposes and should NOT be\n"); log_info ("used in a production environment or with production keys!\n"); } # endif if (may_coredump && !opt.quiet) log_info (_("WARNING: program may create a core file!\n")); if (logfile && cmd == aServer) { log_set_file (logfile); log_set_prefix (NULL, 1|2|4); } if (gnupg_faked_time_p ()) { log_info (_("WARNING: running with faked system time: ")); gpgsm_dump_time (gnupg_get_time ()); log_printf ("\n"); } /*FIXME if (opt.batch) */ /* tty_batchmode (1); */ gcry_control (GCRYCTL_RESUME_SECMEM_WARN); set_debug (); /* FIXME: should set filenames of libgcrypt explicitly * gpg_opt_homedir = opt.homedir; */ /* must do this after dropping setuid, because the mapping functions may try to load an module and we may have disabled an algorithm */ if ( !gcry_cipher_map_name (opt.def_cipher_algoid) || !gcry_cipher_mode_from_oid (opt.def_cipher_algoid)) log_error (_("selected cipher algorithm is invalid\n")); if (def_digest_string) { opt.def_digest_algo = gcry_md_map_name (def_digest_string); xfree (def_digest_string); def_digest_string = NULL; if (our_md_test_algo(opt.def_digest_algo) ) log_error (_("selected digest algorithm is invalid\n")); } if (log_get_errorcount(0)) gpgsm_exit(2); /* set the random seed file */ if (use_random_seed) { char *p = make_filename (opt.homedir, "random_seed", NULL); #if 0 #warning set_random_seed_file not yet available in Libgcrypt set_random_seed_file(p); #endif xfree(p); } if (!cmd && opt.fingerprint && !with_fpr) set_cmd (&cmd, aListKeys); if (!nrings && default_keyring) /* add default keybox */ keydb_add_resource ("pubring.kbx", 0, 0); for (sl = nrings; sl; sl = sl->next) keydb_add_resource (sl->d, 0, 0); FREE_STRLIST(nrings); for (sl = locusr; sl; sl = sl->next) { int rc = gpgsm_add_to_certlist (&ctrl, sl->d, 1, &signerlist); if (rc) { log_error (_("can't sign using `%s': %s\n"), sl->d, gnupg_strerror (rc)); gpgsm_status2 (&ctrl, STATUS_INV_RECP, rc == -1? "1": rc == GNUPG_No_Public_Key? "1": rc == GNUPG_Ambiguous_Name? "2": rc == GNUPG_Wrong_Key_Usage? "3": rc == GNUPG_Certificate_Revoked? "4": rc == GNUPG_Certificate_Expired? "5": rc == GNUPG_No_CRL_Known? "6": rc == GNUPG_CRL_Too_Old? "7": rc == GNUPG_No_Policy_Match? "8": rc == GNUPG_No_Secret_Key? "9": "0", sl->d, NULL); } } for (sl = remusr; sl; sl = sl->next) { int rc = gpgsm_add_to_certlist (&ctrl, sl->d, 0, &recplist); if (rc) { log_error (_("can't encrypt to `%s': %s\n"), sl->d, gnupg_strerror (rc)); gpgsm_status2 (&ctrl, STATUS_INV_RECP, rc == -1? "1": rc == GNUPG_No_Public_Key? "1": rc == GNUPG_Ambiguous_Name? "2": rc == GNUPG_Wrong_Key_Usage? "3": rc == GNUPG_Certificate_Revoked? "4": rc == GNUPG_Certificate_Expired? "5": rc == GNUPG_No_CRL_Known? "6": rc == GNUPG_CRL_Too_Old? "7": rc == GNUPG_No_Policy_Match? "8": "0", sl->d, NULL); } } if (log_get_errorcount(0)) gpgsm_exit(1); /* must stop for invalid recipients */ fname = argc? *argv : NULL; switch (cmd) { case aServer: if (debug_wait) { log_debug ("waiting for debugger - my pid is %u .....\n", (unsigned int)getpid()); sleep (debug_wait); log_debug ("... okay\n"); } gpgsm_server (); break; case aCallDirmngr: if (!argc) wrong_args (_("--call-dirmngr {args}")); else if (gpgsm_dirmngr_run_command (&ctrl, *argv, argc-1, argv+1)) gpgsm_exit (1); break; case aCallProtectTool: run_protect_tool (argc, argv); break; case aEncr: /* encrypt the given file */ if (!argc) gpgsm_encrypt (&ctrl, recplist, 0, stdout); /* from stdin */ else if (argc == 1) gpgsm_encrypt (&ctrl, recplist, open_read (*argv), stdout); /* from file */ else wrong_args (_("--encrypt [datafile]")); break; case aSign: /* sign the given file */ /* FIXME: We don't handle --output yet. We should also allow to concatenate multiple files for signing because that is what gpg does.*/ if (!argc) gpgsm_sign (&ctrl, signerlist, 0, detached_sig, stdout); /* create from stdin */ else if (argc == 1) gpgsm_sign (&ctrl, signerlist, open_read (*argv), detached_sig, stdout); /* from file */ else wrong_args (_("--sign [datafile]")); break; case aSignEncr: /* sign and encrypt the given file */ log_error ("this command has not yet been implemented\n"); break; case aClearsign: /* make a clearsig */ log_error ("this command has not yet been implemented\n"); break; case aVerify: { FILE *fp = NULL; if (argc == 2 && opt.outfile) log_info ("option --output ignored for a detached signature\n"); else if (opt.outfile) fp = open_fwrite (opt.outfile); if (!argc) gpgsm_verify (&ctrl, 0, -1, fp); /* normal signature from stdin */ else if (argc == 1) gpgsm_verify (&ctrl, open_read (*argv), -1, fp); /* std signature */ else if (argc == 2) /* detached signature (sig, detached) */ gpgsm_verify (&ctrl, open_read (*argv), open_read (argv[1]), NULL); else wrong_args (_("--verify [signature [detached_data]]")); if (fp && fp != stdout) fclose (fp); } break; case aVerifyFiles: log_error ("this command has not yet been implemented\n"); break; case aDecrypt: if (!argc) gpgsm_decrypt (&ctrl, 0, stdout); /* from stdin */ else if (argc == 1) gpgsm_decrypt (&ctrl, open_read (*argv), stdout); /* from file */ else wrong_args (_("--decrypt [filename]")); break; case aDeleteKey: for (sl=NULL; argc; argc--, argv++) add_to_strlist (&sl, *argv); gpgsm_delete (&ctrl, sl); free_strlist(sl); break; case aListSigs: ctrl.with_chain = 1; case aListKeys: for (sl=NULL; argc; argc--, argv++) add_to_strlist (&sl, *argv); gpgsm_list_keys (&ctrl, sl, stdout, (0 | (1<<6))); free_strlist(sl); break; case aListExternalKeys: for (sl=NULL; argc; argc--, argv++) add_to_strlist (&sl, *argv); gpgsm_list_keys (&ctrl, sl, stdout, (0 | (1<<7))); free_strlist(sl); break; case aListSecretKeys: for (sl=NULL; argc; argc--, argv++) add_to_strlist (&sl, *argv); gpgsm_list_keys (&ctrl, sl, stdout, (2 | (1<<6))); free_strlist(sl); break; case aKeygen: /* generate a key */ log_error ("this function is not yet available from the commandline\n"); break; case aImport: gpgsm_import_files (&ctrl, argc, argv, open_read); break; case aExport: for (sl=NULL; argc; argc--, argv++) add_to_strlist (&sl, *argv); gpgsm_export (&ctrl, sl, stdout); free_strlist(sl); break; case aSendKeys: case aRecvKeys: log_error ("this command has not yet been implemented\n"); break; case aLearnCard: if (argc) wrong_args ("--learn-card"); else { int rc = gpgsm_agent_learn (); if (rc) log_error ("error learning card: %s\n", gnupg_strerror (rc)); } break; case aPasswd: if (argc != 1) wrong_args ("--passwd "); else { int rc; KsbaCert cert = NULL; char *grip = NULL; rc = gpgsm_find_cert (*argv, &cert); if (rc) ; else if (!(grip = gpgsm_get_keygrip_hexstring (cert))) rc = GNUPG_Bug; else rc = gpgsm_agent_passwd (grip); if (rc) log_error ("error changing passphrase: %s\n", gnupg_strerror (rc)); xfree (grip); ksba_cert_release (cert); } break; default: log_error ("invalid command (there is no implicit command)\n"); break; } /* cleanup */ gpgsm_release_certlist (recplist); gpgsm_release_certlist (signerlist); FREE_STRLIST(remusr); FREE_STRLIST(locusr); gpgsm_exit(0); return 8; /*NEVER REACHED*/ } /* Note: This function is used by signal handlers!. */ static void emergency_cleanup (void) { gcry_control (GCRYCTL_TERM_SECMEM ); } void gpgsm_exit (int rc) { #if 0 #warning no update_random_seed_file update_random_seed_file(); #endif #if 0 /* at this time a bit annoying */ if (opt.debug & DBG_MEMSTAT_VALUE) { gcry_control( GCRYCTL_DUMP_MEMORY_STATS ); gcry_control( GCRYCTL_DUMP_RANDOM_STATS ); } if (opt.debug) gcry_control (GCRYCTL_DUMP_SECMEM_STATS ); #endif emergency_cleanup (); rc = rc? rc : log_get_errorcount(0)? 2 : gpgsm_errors_seen? 1 : 0; exit (rc); } void gpgsm_init_default_ctrl (struct server_control_s *ctrl) { ctrl->include_certs = 1; /* only include the signer's cert */ } /* Check whether the filename has the form "-&nnnn", where n is a non-zero number. Returns this number or -1 if it is not the case. */ static int check_special_filename (const char *fname) { if (allow_special_filenames && fname && *fname == '-' && fname[1] == '&' ) { int i; fname += 2; for (i=0; isdigit (fname[i]); i++ ) ; if ( !fname[i] ) return atoi (fname); } return -1; } /* Open the FILENAME for read and return the filedescriptor. Stop with an error message in case of problems. "-" denotes stdin and if special filenames are allowed the given fd is opened instead. */ static int open_read (const char *filename) { int fd; if (filename[0] == '-' && !filename[1]) return 0; /* stdin */ fd = check_special_filename (filename); if (fd != -1) return fd; fd = open (filename, O_RDONLY); if (fd == -1) { log_error (_("can't open `%s': %s\n"), filename, strerror (errno)); gpgsm_exit (2); } return fd; } /* Open FILENAME for fwrite and return the stream. Stop with an error message in case of problems. "-" denotes stdout and if special filenames are allowed the given fd is opened instead. Caller must close the returned stream unless it is stdout. */ static FILE * open_fwrite (const char *filename) { int fd; FILE *fp; if (filename[0] == '-' && !filename[1]) return stdout; fd = check_special_filename (filename); if (fd != -1) { fp = fdopen (dup (fd), "wb"); if (!fp) { log_error ("fdopen(%d) failed: %s\n", fd, strerror (errno)); gpgsm_exit (2); } return fp; } fp = fopen (filename, "wb"); if (!fp) { log_error (_("can't open `%s': %s\n"), filename, strerror (errno)); gpgsm_exit (2); } return fp; } static void run_protect_tool (int argc, char **argv) { char *pgm = GNUPG_PROTECT_TOOL; char **av; int i; av = xcalloc (argc+2, sizeof *av); av[0] = strrchr (pgm, '/'); if (!av[0]) av[0] = pgm; for (i=1; argc; i++, argc--, argv++) av[i] = *argv; av[i] = NULL; execv (pgm, av); log_error ("error executing `%s': %s\n", pgm, strerror (errno)); gpgsm_exit (2); }