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gnupg/sm/gpgsm.c

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/* gpgsm.c - GnuPG for S/MIME
* Copyright (C) 2001, 2002, 2003, 2004, 2005,
* 2006 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*/
#include <config.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <unistd.h>
#include <fcntl.h>
#ifdef USE_GNU_PTH
# include <pth.h>
#endif
#include "gpgsm.h"
#include <gcrypt.h>
#include <assuan.h> /* malloc hooks */
#include "../kbx/keybox.h" /* malloc hooks */
#include "i18n.h"
#include "keydb.h"
#include "sysutils.h"
#ifndef O_BINARY
#define O_BINARY 0
#endif
enum cmd_and_opt_values {
aNull = 0,
oArmor = 'a',
aDetachedSign = 'b',
aSym = 'c',
aDecrypt = 'd',
aEncr = 'e',
oInteractive = 'i',
aListKeys = 'k',
aListSecretKeys = '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,
aListExternalKeys,
aListChain,
aSendKeys,
aRecvKeys,
aExport,
aExportSecretKeyP12,
aCheckKeys, /* nyi */
aServer,
aLearnCard,
aCallDirmngr,
aCallProtectTool,
aPasswd,
aGPGConfList,
aDumpKeys,
aDumpChain,
aDumpSecretKeys,
aDumpExternalKeys,
aKeydbClearSomeCertFlags,
oOptions,
oDebug,
oDebugLevel,
oDebugAll,
oDebugNone,
oDebugWait,
oDebugAllowCoreDump,
oDebugNoChainValidation,
oDebugIgnoreExpiration,
oFixedPassphrase,
oLogFile,
oNoLogFile,
oEnableSpecialFilenames,
oAgentProgram,
oDisplay,
oTTYname,
oTTYtype,
oLCctype,
oLCmessages,
oPreferSystemDirmngr,
oDirmngrProgram,
oProtectToolProgram,
oFakedSystemTime,
oAssumeArmor,
oAssumeBase64,
oAssumeBinary,
oBase64,
oNoArmor,
oDisableCRLChecks,
oEnableCRLChecks,
oDisableTrustedCertCRLCheck,
oEnableTrustedCertCRLCheck,
oForceCRLRefresh,
oDisableOCSP,
oEnableOCSP,
oIncludeCerts,
oPolicyFile,
oDisablePolicyChecks,
oEnablePolicyChecks,
oAutoIssuerKeyRetrieve,
oTextmode,
oFingerprint,
oWithFingerprint,
oWithMD5Fingerprint,
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,
oWithValidation,
oWithEphemeralKeys,
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")},
{ aListChain, "list-chain", 256, N_("list certificate chain")},
{ 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")},
{ aGPGConfList, "gpgconf-list", 256, "@" },
{ aDumpKeys, "dump-keys", 256, "@"},
{ aDumpChain, "dump-chain", 256, "@"},
{ aDumpExternalKeys, "dump-external-keys", 256, "@"},
{ aDumpSecretKeys, "dump-secret-keys", 256, "@"},
{ aKeydbClearSomeCertFlags, "keydb-clear-some-cert-flags", 256, "@"},
{ 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")},
{ oPreferSystemDirmngr,"prefer-system-dirmngr", 0,
N_("use system's dirmngr if available")},
{ oDisableCRLChecks, "disable-crl-checks", 0, N_("never consult a CRL")},
{ oEnableCRLChecks, "enable-crl-checks", 0, "@"},
{ oDisableTrustedCertCRLCheck, "disable-trusted-cert-crl-check", 0, "@"},
{ oEnableTrustedCertCRLCheck, "enable-trusted-cert-crl-check", 0, "@"},
{ oForceCRLRefresh, "force-crl-refresh", 0, "@"},
{ oDisableOCSP, "disable-ocsp", 0, "@" },
{ oEnableOCSP, "enable-ocsp", 0, N_("check validity using OCSP")},
{ 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, "@" },
#endif
{ oEncryptTo, "encrypt-to", 2, "@" },
{ oNoEncryptTo, "no-encrypt-to", 0, "@" },
{ 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")},
{ oNoLogFile, "no-log-file" ,0, "@"},
#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, "@"},
{ oDebugLevel, "debug-level" ,2, N_("|LEVEL|set the debugging level to LEVEL")},
{ oDebugAll, "debug-all" ,0, "@"},
{ oDebugNone, "debug-none" ,0, "@"},
{ oDebugWait, "debug-wait" ,1, "@"},
{ oDebugAllowCoreDump, "debug-allow-core-dump", 0, "@" },
{ oDebugNoChainValidation, "debug-no-chain-validation", 0, "@"},
{ oDebugIgnoreExpiration, "debug-ignore-expiration", 0, "@"},
{ oFixedPassphrase, "fixed-passphrase", 2, "@"},
{ 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, "@"},
{ aExportSecretKeyP12, "export-secret-key-p12", 256, "@"},
{ 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 , "@" },
{ oProtectToolProgram, "protect-tool-program", 2 , "@" },
{ oFakedSystemTime, "faked-system-time", 4, "@" }, /* (epoch time) */
{ oNoBatch, "no-batch", 0, "@" },
{ oWithColons, "with-colons", 0, "@"},
{ oWithKeyData,"with-key-data", 0, "@"},
{ oWithValidation, "with-validation", 0, "@"},
{ oWithMD5Fingerprint, "with-md5-fingerprint", 0, "@"},
{ oWithEphemeralKeys, "with-ephemeral-keys", 0, "@"},
{ aListKeys, "list-key", 256, "@" }, /* alias */
{ aListChain, "list-sig", 256, "@" }, /* alias */
{ aListChain, "list-sigs",256, "@" }, /* alias */
{ aListChain, "check-sig",256, "@" }, /* alias */
{ aListChain, "check-sigs",256, "@"}, /* 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;
/* Helper to implement --debug-level and --debug*/
static const char *debug_level;
static unsigned int debug_value;
/* Option --enable-special-filenames */
static int allow_special_filenames;
/* Default value for include-certs. */
static int default_include_certs = 1; /* Only include the signer's cert. */
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;
}
/* Set the file pointer into binary mode if required. */
static void
set_binary (FILE *fp)
{
#ifdef HAVE_DOSISH_SYSTEM
setmode (fileno (fp), O_BINARY);
#endif
}
static void
i18n_init(void)
{
#ifdef USE_SIMPLE_GETTEXT
set_gettext_file (PACKAGE_GT);
#else
# ifdef ENABLE_NLS
setlocale (LC_ALL, "" );
bindtextdomain (PACKAGE_GT, LOCALEDIR);
textdomain (PACKAGE_GT);
# endif
#endif
}
static void
wrong_args (const char *text)
{
fputs (_("usage: gpgsm [options] "), stderr);
fputs (text, stderr);
putc ('\n', stderr);
gpgsm_exit (2);
}
/* Setup the debugging. With a DEBUG_LEVEL of NULL only the active
debug flags are propagated to the subsystems. With DEBUG_LEVEL
set, a specific set of debug flags is set; and individual debugging
flags will be added on top. */
static void
set_debug (void)
{
if (!debug_level)
;
else if (!strcmp (debug_level, "none"))
opt.debug = 0;
else if (!strcmp (debug_level, "basic"))
opt.debug = DBG_ASSUAN_VALUE;
else if (!strcmp (debug_level, "advanced"))
opt.debug = DBG_ASSUAN_VALUE|DBG_X509_VALUE;
else if (!strcmp (debug_level, "expert"))
opt.debug = (DBG_ASSUAN_VALUE|DBG_X509_VALUE
|DBG_CACHE_VALUE|DBG_CRYPTO_VALUE);
else if (!strcmp (debug_level, "guru"))
opt.debug = ~0;
else
{
log_error (_("invalid debug-level `%s' given\n"), debug_level);
gpgsm_exit(2);
}
opt.debug |= debug_value;
if (opt.debug && !opt.verbose)
opt.verbose = 1;
if (opt.debug)
opt.quiet = 0;
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);
gcry_control (GCRYCTL_SET_VERBOSITY, (int)opt.verbose);
}
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;
}
/* Helper to add recipients to a list. */
static void
do_add_recipient (ctrl_t ctrl, const char *name,
certlist_t *recplist, int is_encrypt_to)
{
int rc = gpgsm_add_to_certlist (ctrl, name, 0, recplist, is_encrypt_to);
if (rc)
{
log_error (_("can't encrypt to `%s': %s\n"), name, gpg_strerror (rc));
gpgsm_status2 (ctrl, STATUS_INV_RECP,
gpg_err_code (rc) == -1? "1":
gpg_err_code (rc) == GPG_ERR_NO_PUBKEY? "1":
gpg_err_code (rc) == GPG_ERR_AMBIGUOUS_NAME? "2":
gpg_err_code (rc) == GPG_ERR_WRONG_KEY_USAGE? "3":
gpg_err_code (rc) == GPG_ERR_CERT_REVOKED? "4":
gpg_err_code (rc) == GPG_ERR_CERT_EXPIRED? "5":
gpg_err_code (rc) == GPG_ERR_NO_CRL_KNOWN? "6":
gpg_err_code (rc) == GPG_ERR_CRL_TOO_OLD? "7":
gpg_err_code (rc) == GPG_ERR_NO_POLICY_MATCH? "8":
"0",
name, NULL);
}
}
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_t recplist = NULL;
certlist_t signerlist = NULL;
int do_not_setup_keys = 0;
/* 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);
/* Try to auto set the character set. */
set_native_charset (NULL);
/* 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) );
}
#ifdef HAVE_W32_SYSTEM
/* For W32 we need pth. */
pth_init ();
#endif
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*/
opt.homedir = default_homedir ();
#ifdef HAVE_W32_SYSTEM
opt.no_crl_check = 1;
#endif
/* 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);
assuan_set_assuan_log_stream (log_get_stream ());
assuan_set_assuan_log_prefix (log_get_prefix (NULL));
assuan_set_assuan_err_source (GPG_ERR_SOURCE_DEFAULT);
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);
/* Set 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 aGPGConfList:
set_cmd (&cmd, pargs.r_opt);
do_not_setup_keys = 1;
nogreeting = 1;
break;
case aServer:
opt.batch = 1;
set_cmd (&cmd, aServer);
break;
case aCallDirmngr:
opt.batch = 1;
set_cmd (&cmd, aCallDirmngr);
do_not_setup_keys = 1;
break;
case aCallProtectTool:
opt.batch = 1;
set_cmd (&cmd, aCallProtectTool);
no_more_options = 1; /* Stop parsing. */
do_not_setup_keys = 1;
break;
case aDeleteKey:
set_cmd (&cmd, aDeleteKey);
/*greeting=1;*/
do_not_setup_keys = 1;
break;
case aDetachedSign:
detached_sig = 1;
set_cmd (&cmd, aSign );
break;
case aKeygen:
set_cmd (&cmd, aKeygen);
greeting=1;
do_not_setup_keys = 1;
break;
case aCheckKeys:
case aImport:
case aSendKeys:
case aRecvKeys:
case aExport:
case aExportSecretKeyP12:
case aDumpKeys:
case aDumpChain:
case aDumpExternalKeys:
case aDumpSecretKeys:
case aListKeys:
case aListExternalKeys:
case aListSecretKeys:
case aListChain:
case aLearnCard:
case aPasswd:
case aKeydbClearSomeCertFlags:
do_not_setup_keys = 1;
set_cmd (&cmd, pargs.r_opt);
break;
case aSym:
case aDecrypt:
case aEncr:
case aSign:
case aClearsign:
case aVerify:
set_cmd (&cmd, pargs.r_opt);
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 oDisableTrustedCertCRLCheck:
opt.no_trusted_cert_crl_check = 1;
break;
case oEnableTrustedCertCRLCheck:
opt.no_trusted_cert_crl_check = 0;
break;
case oForceCRLRefresh:
opt.force_crl_refresh = 1;
break;
case oDisableOCSP:
ctrl.use_ocsp = opt.enable_ocsp = 0;
break;
case oEnableOCSP:
ctrl.use_ocsp = opt.enable_ocsp = 1;
break;
case oIncludeCerts:
ctrl.include_certs = default_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 oNoLogFile: logfile = NULL; 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: debug_value |= pargs.r.ret_ulong; break;
case oDebugAll: debug_value = ~0; break;
case oDebugNone: debug_value = 0; break;
case oDebugLevel: debug_level = pargs.r.ret_str; break;
case oDebugWait: debug_wait = pargs.r.ret_int; break;
case oDebugAllowCoreDump:
may_coredump = enable_core_dumps ();
break;
case oDebugNoChainValidation: opt.no_chain_validation = 1; break;
case oDebugIgnoreExpiration: opt.ignore_expiration = 1; break;
case oFixedPassphrase: opt.fixed_passphrase = pargs.r.ret_str; break;
case oStatusFD: ctrl.status_fd = pargs.r.ret_int; break;
case oLoggerFD: log_set_fd (pargs.r.ret_int ); break;
case oWithMD5Fingerprint:
opt.with_md5_fingerprint=1; /*fall thru*/
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 oPreferSystemDirmngr: opt.prefer_system_dirmngr = 1; break;
case oProtectToolProgram:
opt.protect_tool_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;*/
log_info ("WARNING: --default-key has not yet been implemented\n");
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 oWithValidation: ctrl.with_validation=1; break;
case oWithEphemeralKeys: opt.with_ephemeral_keys=1; break;
case oSkipVerify: opt.skip_verify=1; break;
case oNoEncryptTo: 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;
/* Keep a copy of the config filename. */
opt.config_filename = configname;
configname = NULL;
goto next_pass;
}
xfree (configname);
configname = NULL;
if (!opt.config_filename)
opt.config_filename = make_filename (opt.homedir, "gpgsm.conf", 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 (opt.qualsig_approval && !opt.quiet) */
/* log_info (_("This software has offically been approved to " */
/* "create and verify\n" */
/* "qualified signatures according to German law.\n")); */
if (logfile && cmd == aServer)
{
log_set_file (logfile);
log_set_prefix (NULL, 1|2|4);
}
if (gnupg_faked_time_p ())
{
gnupg_isotime_t tbuf;
log_info (_("WARNING: running with faked system time: "));
gnupg_get_isotime (tbuf);
gpgsm_dump_time (tbuf);
log_printf ("\n");
}
/*FIXME if (opt.batch) */
/* tty_batchmode (1); */
gcry_control (GCRYCTL_RESUME_SECMEM_WARN);
set_debug ();
/* Although we alwasy use gpgsm_exit, we better install a regualr
exit handler so that at least the secure memory gets wiped
out. */
if (atexit (emergency_cleanup))
{
log_error ("atexit failed\n");
gpgsm_exit (2);
}
/* 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);
gcry_control (GCRYCTL_SET_RANDOM_SEED_FILE, p);
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);
if (!do_not_setup_keys)
{
for (sl = locusr; sl ; sl = sl->next)
{
int rc = gpgsm_add_to_certlist (&ctrl, sl->d, 1, &signerlist, 0);
if (rc)
{
log_error (_("can't sign using `%s': %s\n"),
sl->d, gpg_strerror (rc));
gpgsm_status2 (&ctrl, STATUS_INV_RECP,
gpg_err_code (rc) == -1? "1":
gpg_err_code (rc) == GPG_ERR_NO_PUBKEY? "1":
gpg_err_code (rc) == GPG_ERR_AMBIGUOUS_NAME? "2":
gpg_err_code (rc) == GPG_ERR_WRONG_KEY_USAGE? "3":
gpg_err_code (rc) == GPG_ERR_CERT_REVOKED? "4":
gpg_err_code (rc) == GPG_ERR_CERT_EXPIRED? "5":
gpg_err_code (rc) == GPG_ERR_NO_CRL_KNOWN? "6":
gpg_err_code (rc) == GPG_ERR_CRL_TOO_OLD? "7":
gpg_err_code (rc) == GPG_ERR_NO_POLICY_MATCH? "8":
gpg_err_code (rc) == GPG_ERR_NO_SECKEY? "9":
"0",
sl->d, NULL);
}
}
/* Build the recipient list. We first add the regular ones and then
the encrypt-to ones because the underlying function will silenty
ignore duplicates and we can't allow to keep a duplicate which is
flagged as encrypt-to as the actually encrypt function would then
complain about no (regular) recipients. */
for (sl = remusr; sl; sl = sl->next)
if (!(sl->flags & 1))
do_add_recipient (&ctrl, sl->d, &recplist, 0);
if (!opt.no_encrypt_to)
{
for (sl = remusr; sl; sl = sl->next)
if ((sl->flags & 1))
do_add_recipient (&ctrl, sl->d, &recplist, 1);
}
}
if (log_get_errorcount(0))
gpgsm_exit(1); /* must stop for invalid recipients */
fname = argc? *argv : NULL;
switch (cmd)
{
case aGPGConfList:
{ /* List options and default values in the GPG Conf format. */
/* The following list is taken from gnupg/tools/gpgconf-comp.c. */
/* Option flags. YOU MUST NOT CHANGE THE NUMBERS OF THE EXISTING
FLAGS, AS THEY ARE PART OF THE EXTERNAL INTERFACE. */
#define GC_OPT_FLAG_NONE 0UL
/* The RUNTIME flag for an option indicates that the option can be
changed at runtime. */
#define GC_OPT_FLAG_RUNTIME (1UL << 3)
/* The DEFAULT flag for an option indicates that the option has a
default value. */
#define GC_OPT_FLAG_DEFAULT (1UL << 4)
/* The DEF_DESC flag for an option indicates that the option has a
default, which is described by the value of the default field. */
#define GC_OPT_FLAG_DEF_DESC (1UL << 5)
/* The NO_ARG_DESC flag for an option indicates that the argument has
a default, which is described by the value of the ARGDEF field. */
#define GC_OPT_FLAG_NO_ARG_DESC (1UL << 6)
printf ("gpgconf-gpgsm.conf:%lu:\"%s\n",
GC_OPT_FLAG_DEFAULT, opt.config_filename);
printf ("verbose:%lu:\n"
"quiet:%lu:\n"
"debug-level:%lu:\"none:\n"
"log-file:%lu:\n",
GC_OPT_FLAG_NONE,
GC_OPT_FLAG_NONE,
GC_OPT_FLAG_DEFAULT,
GC_OPT_FLAG_NONE );
printf ("disable-crl-checks:%lu:\n",
GC_OPT_FLAG_NONE );
printf ("disable-trusted-cert-crl-check:%lu:\n",
GC_OPT_FLAG_NONE );
printf ("enable-ocsp:%lu:\n",
GC_OPT_FLAG_NONE );
printf ("include-certs:%lu:1:\n",
GC_OPT_FLAG_DEFAULT );
printf ("disable-policy-checks:%lu:\n",
GC_OPT_FLAG_NONE );
printf ("auto-issuer-key-retrieve:%lu:\n",
GC_OPT_FLAG_NONE );
printf ("prefer-system-dirmngr:%lu:\n",
GC_OPT_FLAG_NONE );
}
break;
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 (recplist);
break;
case aCallDirmngr:
if (!argc)
wrong_args ("--call-dirmngr <command> {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. */
{
FILE *fp = open_fwrite (opt.outfile?opt.outfile:"-");
set_binary (stdin);
if (!argc) /* Source is stdin. */
gpgsm_encrypt (&ctrl, recplist, 0, fp);
else if (argc == 1) /* Source is the given file. */
gpgsm_encrypt (&ctrl, recplist, open_read (*argv), fp);
else
wrong_args ("--encrypt [datafile]");
if (fp != stdout)
fclose (fp);
}
break;
case aSign: /* Sign the given file. */
{
FILE *fp = open_fwrite (opt.outfile?opt.outfile:"-");
/* Fixme: We should also allow to concatenate multiple files for
signing because that is what gpg does.*/
set_binary (stdin);
if (!argc) /* Create from stdin. */
gpgsm_sign (&ctrl, signerlist, 0, detached_sig, fp);
else if (argc == 1) /* From file. */
gpgsm_sign (&ctrl, signerlist,
open_read (*argv), detached_sig, fp);
else
wrong_args ("--sign [datafile]");
if (fp != stdout)
fclose (fp);
}
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;
set_binary (stdin);
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:
{
FILE *fp = open_fwrite (opt.outfile?opt.outfile:"-");
set_binary (stdin);
if (!argc)
gpgsm_decrypt (&ctrl, 0, fp); /* from stdin */
else if (argc == 1)
gpgsm_decrypt (&ctrl, open_read (*argv), fp); /* from file */
else
wrong_args ("--decrypt [filename]");
if (fp != stdout)
fclose (fp);
}
break;
case aDeleteKey:
for (sl=NULL; argc; argc--, argv++)
add_to_strlist (&sl, *argv);
gpgsm_delete (&ctrl, sl);
free_strlist(sl);
break;
case aListChain:
case aDumpChain:
ctrl.with_chain = 1;
case aListKeys:
case aDumpKeys:
case aListExternalKeys:
case aDumpExternalKeys:
case aListSecretKeys:
case aDumpSecretKeys:
{
unsigned int mode;
FILE *fp;
switch (cmd)
{
case aListChain:
case aListKeys: mode = (0 | 0 | (1<<6)); break;
case aDumpChain:
case aDumpKeys: mode = (256 | 0 | (1<<6)); break;
case aListExternalKeys: mode = (0 | 0 | (1<<7)); break;
case aDumpExternalKeys: mode = (256 | 0 | (1<<7)); break;
case aListSecretKeys: mode = (0 | 2 | (1<<6)); break;
case aDumpSecretKeys: mode = (256 | 2 | (1<<6)); break;
default: BUG();
}
fp = open_fwrite (opt.outfile?opt.outfile:"-");
for (sl=NULL; argc; argc--, argv++)
add_to_strlist (&sl, *argv);
gpgsm_list_keys (&ctrl, sl, fp, mode);
free_strlist(sl);
if (fp != stdout)
fclose (fp);
}
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:
{
FILE *fp = open_fwrite (opt.outfile?opt.outfile:"-");
for (sl=NULL; argc; argc--, argv++)
add_to_strlist (&sl, *argv);
gpgsm_export (&ctrl, sl, fp);
free_strlist(sl);
if (fp != stdout)
fclose (fp);
}
break;
case aExportSecretKeyP12:
{
FILE *fp = open_fwrite (opt.outfile?opt.outfile:"-");
if (argc == 1)
gpgsm_p12_export (&ctrl, *argv, stdout);
else
wrong_args ("--export-secret-key-p12 KEY-ID");
if (fp != stdout)
fclose (fp);
}
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 (&ctrl);
if (rc)
log_error ("error learning card: %s\n", gpg_strerror (rc));
}
break;
case aPasswd:
if (argc != 1)
wrong_args ("--passwd <key-Id>");
else
{
int rc;
ksba_cert_t cert = NULL;
char *grip = NULL;
rc = gpgsm_find_cert (*argv, NULL, &cert);
if (rc)
;
else if (!(grip = gpgsm_get_keygrip_hexstring (cert)))
rc = gpg_error (GPG_ERR_BUG);
else
{
char *desc = gpgsm_format_keydesc (cert);
rc = gpgsm_agent_passwd (&ctrl, grip, desc);
xfree (desc);
}
if (rc)
log_error ("error changing passphrase: %s\n", gpg_strerror (rc));
xfree (grip);
ksba_cert_release (cert);
}
break;
case aKeydbClearSomeCertFlags:
for (sl=NULL; argc; argc--, argv++)
add_to_strlist (&sl, *argv);
keydb_clear_some_cert_flags (&ctrl, sl);
free_strlist(sl);
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)
{
gcry_control (GCRYCTL_UPDATE_RANDOM_SEED_FILE);
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 );
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 = default_include_certs;
ctrl->use_ocsp = opt.enable_ocsp;
}
/* 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])
{
set_binary (stdin);
return 0; /* stdin */
}
fd = check_special_filename (filename);
if (fd != -1)
return fd;
fd = open (filename, O_RDONLY | O_BINARY);
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])
{
set_binary (stdout);
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);
}
set_binary (fp);
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)
{
#ifndef HAVE_W32_SYSTEM
const char *pgm;
char **av;
int i;
if (!opt.protect_tool_program || !*opt.protect_tool_program)
pgm = GNUPG_DEFAULT_PROTECT_TOOL;
else
pgm = opt.protect_tool_program;
av = xcalloc (argc+2, sizeof *av);
av[0] = strrchr (pgm, '/');
if (!av[0])
av[0] = xstrdup (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));
#endif /*HAVE_W32_SYSTEM*/
gpgsm_exit (2);
}
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