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a028f24136
* configure.ac (GPGRT_ENABLE_ARGPARSE_MACROS): Define. * common/argparse.c, common/argparse.h: Rewrite. * tests/gpgscm/main.c: Switch to the new option parser. * g10/gpg.c: Switch to the new option parser and enable a global conf file. * g10/gpgv.c: Ditto. * agent/gpg-agent.c: Ditto. * agent/preset-passphrase.c: Ditto. * agent/protect-tool.c: Ditto. * scd/scdaemon.c: Ditto. * dirmngr/dirmngr.c: Ditto. * dirmngr/dirmngr_ldap.c: Ditto * dirmngr/dirmngr-client.c: Ditto. * kbx/kbxutil.c: Ditto. * tools/gpg-card.c: Ditto. * tools/gpg-check-pattern.c: Ditto. * tools/gpg-connect-agent.c: Ditto. * tools/gpg-pair-tool.c: Ditto. * tools/gpg-wks-client.c: Ditto. * tools/gpg-wks-server.c: Ditto. * tools/gpgconf.c: Ditto. * tools/gpgsplit.c: Ditto. * tools/gpgtar.c: Ditto. * g13/g13.c: Ditto. * g13/g13-syshelp.c: Ditto. Do not force verbose mode. * sm/gpgsm.c: Ditto. Add option --no-options. -- This is backport from master commitcdbe10b762commitba463128cecommit3bc004decdcommit2c823bd878commit0e8f6e2aa9but without changing all functions names to gpgrt. Instead we use wrapper functions which, when building against old Libgpg-error versions, are implemented in argparse.c using code from the current libgpg-error. This allows to keep the dependency requirement at libgpg-error 1.27 to support older distributions. Tested builds against 1.27 and 1.40-beta. Note that g13-syshelp does not anymore default to --verbose because that can now be enabled in /etc/gnupg/g13-syshelp.conf. GnuPG-bug-id: 4788 Signed-off-by: Werner Koch <wk@gnupg.org>
1051 lines
28 KiB
C
1051 lines
28 KiB
C
/* g13.c - Disk Key management with GnuPG
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* Copyright (C) 2009 Free Software Foundation, Inc.
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*
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* This file is part of GnuPG.
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*
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* GnuPG is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* GnuPG is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <https://www.gnu.org/licenses/>.
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* SPDX-License-Identifier: GPL-3.0-or-later
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*/
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#include <config.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <ctype.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <npth.h>
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#define INCLUDED_BY_MAIN_MODULE 1
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#include "g13.h"
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#include <gcrypt.h>
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#include <assuan.h>
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#include "../common/i18n.h"
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#include "../common/sysutils.h"
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#include "../common/gc-opt-flags.h"
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#include "../common/asshelp.h"
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#include "../common/init.h"
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#include "keyblob.h"
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#include "server.h"
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#include "runner.h"
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#include "create.h"
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#include "mount.h"
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#include "suspend.h"
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#include "mountinfo.h"
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#include "backend.h"
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#include "call-syshelp.h"
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enum cmd_and_opt_values {
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aNull = 0,
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oQuiet = 'q',
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oVerbose = 'v',
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oRecipient = 'r',
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aGPGConfList = 500,
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aGPGConfTest,
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aCreate,
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aMount,
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aUmount,
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aSuspend,
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aResume,
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aServer,
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aFindDevice,
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oOptions,
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oDebug,
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oDebugLevel,
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oDebugAll,
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oDebugNone,
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oDebugWait,
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oDebugAllowCoreDump,
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oLogFile,
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oNoLogFile,
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oAuditLog,
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oOutput,
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oAgentProgram,
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oGpgProgram,
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oType,
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oDisplay,
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oTTYname,
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oTTYtype,
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oLCctype,
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oLCmessages,
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oXauthority,
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oStatusFD,
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oLoggerFD,
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oNoVerbose,
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oNoSecmemWarn,
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oNoGreeting,
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oNoTTY,
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oNoOptions,
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oHomedir,
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oWithColons,
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oDryRun,
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oNoDetach,
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oNoRandomSeedFile,
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oFakedSystemTime
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};
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static ARGPARSE_OPTS opts[] = {
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ARGPARSE_group (300, N_("@Commands:\n ")),
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ARGPARSE_c (aCreate, "create", N_("Create a new file system container")),
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ARGPARSE_c (aMount, "mount", N_("Mount a file system container") ),
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ARGPARSE_c (aUmount, "umount", N_("Unmount a file system container") ),
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ARGPARSE_c (aSuspend, "suspend", N_("Suspend a file system container") ),
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ARGPARSE_c (aResume, "resume", N_("Resume a file system container") ),
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ARGPARSE_c (aServer, "server", N_("Run in server mode")),
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ARGPARSE_c (aFindDevice, "find-device", "@"),
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ARGPARSE_c (aGPGConfList, "gpgconf-list", "@"),
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ARGPARSE_c (aGPGConfTest, "gpgconf-test", "@"),
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ARGPARSE_group (301, N_("@\nOptions:\n ")),
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ARGPARSE_s_s (oRecipient, "recipient", N_("|USER-ID|encrypt for USER-ID")),
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ARGPARSE_s_s (oType, "type", N_("|NAME|use container format NAME")),
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ARGPARSE_s_s (oOutput, "output", N_("|FILE|write output to FILE")),
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ARGPARSE_s_n (oVerbose, "verbose", N_("verbose")),
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ARGPARSE_s_n (oQuiet, "quiet", N_("be somewhat more quiet")),
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ARGPARSE_s_n (oNoTTY, "no-tty", N_("don't use the terminal at all")),
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ARGPARSE_s_n (oNoDetach, "no-detach", N_("do not detach from the console")),
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ARGPARSE_s_s (oLogFile, "log-file", N_("|FILE|write log output to FILE")),
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ARGPARSE_s_n (oNoLogFile, "no-log-file", "@"),
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ARGPARSE_s_i (oLoggerFD, "logger-fd", "@"),
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ARGPARSE_s_n (oDryRun, "dry-run", N_("do not make any changes")),
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ARGPARSE_conffile (oOptions, "options", N_("|FILE|read options from FILE")),
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ARGPARSE_s_s (oDebug, "debug", "@"),
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ARGPARSE_s_s (oDebugLevel, "debug-level",
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N_("|LEVEL|set the debugging level to LEVEL")),
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ARGPARSE_s_n (oDebugAll, "debug-all", "@"),
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ARGPARSE_s_n (oDebugNone, "debug-none", "@"),
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ARGPARSE_s_i (oDebugWait, "debug-wait", "@"),
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ARGPARSE_s_n (oDebugAllowCoreDump, "debug-allow-core-dump", "@"),
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ARGPARSE_s_i (oStatusFD, "status-fd",
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N_("|FD|write status info to this FD")),
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ARGPARSE_group (302, N_(
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"@\n(See the man page for a complete listing of all commands and options)\n"
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)),
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ARGPARSE_group (303, N_("@\nExamples:\n\n"
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" blurb\n"
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" blurb\n")),
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/* Hidden options. */
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ARGPARSE_s_n (oNoVerbose, "no-verbose", "@"),
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ARGPARSE_s_n (oNoSecmemWarn, "no-secmem-warning", "@"),
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ARGPARSE_s_n (oNoGreeting, "no-greeting", "@"),
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ARGPARSE_noconffile (oNoOptions, "no-options", "@"),
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ARGPARSE_s_s (oHomedir, "homedir", "@"),
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ARGPARSE_s_s (oAgentProgram, "agent-program", "@"),
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ARGPARSE_s_s (oGpgProgram, "gpg-program", "@"),
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ARGPARSE_s_s (oDisplay, "display", "@"),
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ARGPARSE_s_s (oTTYname, "ttyname", "@"),
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ARGPARSE_s_s (oTTYtype, "ttytype", "@"),
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ARGPARSE_s_s (oLCctype, "lc-ctype", "@"),
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ARGPARSE_s_s (oLCmessages, "lc-messages", "@"),
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ARGPARSE_s_s (oXauthority, "xauthority", "@"),
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ARGPARSE_s_s (oFakedSystemTime, "faked-system-time", "@"),
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ARGPARSE_s_n (oWithColons, "with-colons", "@"),
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ARGPARSE_s_n (oNoRandomSeedFile, "no-random-seed-file", "@"),
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/* Command aliases. */
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ARGPARSE_end ()
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};
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/* The list of supported debug flags. */
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static struct debug_flags_s debug_flags [] =
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{
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{ DBG_MOUNT_VALUE , "mount" },
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{ DBG_CRYPTO_VALUE , "crypto" },
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{ DBG_MEMORY_VALUE , "memory" },
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{ DBG_MEMSTAT_VALUE, "memstat" },
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{ DBG_IPC_VALUE , "ipc" },
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{ 0, NULL }
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};
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/* The timer tick interval used by the idle task. */
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#define TIMERTICK_INTERVAL_SEC (1)
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/* It is possible that we are currently running under setuid permissions. */
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static int maybe_setuid = 1;
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/* Helper to implement --debug-level and --debug. */
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static const char *debug_level;
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static unsigned int debug_value;
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/* Flag to indicate that a shutdown was requested. */
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static int shutdown_pending;
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/* The thread id of the idle task. */
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static npth_t idle_task_thread;
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/* The container type as specified on the command line. */
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static int cmdline_conttype;
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static void set_cmd (enum cmd_and_opt_values *ret_cmd,
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enum cmd_and_opt_values new_cmd );
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static void start_idle_task (void);
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static void join_idle_task (void);
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/* Begin NPth wrapper functions. */
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ASSUAN_SYSTEM_NPTH_IMPL;
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static const char *
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my_strusage( int level )
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{
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const char *p;
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switch (level)
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{
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case 9: p = "GPL-3.0-or-later"; break;
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case 11: p = "@G13@ (@GNUPG@)";
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break;
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case 13: p = VERSION; break;
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case 14: p = GNUPG_DEF_COPYRIGHT_LINE; break;
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case 17: p = PRINTABLE_OS_NAME; break;
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case 19: p = _("Please report bugs to <" PACKAGE_BUGREPORT ">.\n");
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break;
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case 1:
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case 40: p = _("Usage: @G13@ [options] [files] (-h for help)");
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break;
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case 41:
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p = _("Syntax: @G13@ [options] [files]\n"
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"Create, mount or unmount an encrypted file system container\n");
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break;
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case 31: p = "\nHome: "; break;
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case 32: p = gnupg_homedir (); break;
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default: p = NULL; break;
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}
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return p;
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}
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static void
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wrong_args (const char *text)
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{
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fprintf (stderr, _("usage: %s [options] "), G13_NAME);
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fputs (text, stderr);
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putc ('\n', stderr);
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g13_exit (2);
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}
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/* Setup the debugging. With a DEBUG_LEVEL of NULL only the active
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debug flags are propagated to the subsystems. With DEBUG_LEVEL
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set, a specific set of debug flags is set; and individual debugging
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flags will be added on top. */
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static void
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set_debug (void)
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{
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int numok = (debug_level && digitp (debug_level));
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int numlvl = numok? atoi (debug_level) : 0;
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if (!debug_level)
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;
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else if (!strcmp (debug_level, "none") || (numok && numlvl < 1))
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opt.debug = 0;
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else if (!strcmp (debug_level, "basic") || (numok && numlvl <= 2))
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opt.debug = DBG_IPC_VALUE|DBG_MOUNT_VALUE;
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else if (!strcmp (debug_level, "advanced") || (numok && numlvl <= 5))
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opt.debug = DBG_IPC_VALUE|DBG_MOUNT_VALUE;
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else if (!strcmp (debug_level, "expert") || (numok && numlvl <= 8))
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opt.debug = (DBG_IPC_VALUE|DBG_MOUNT_VALUE|DBG_CRYPTO_VALUE);
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else if (!strcmp (debug_level, "guru") || numok)
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{
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opt.debug = ~0;
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/* if (numok) */
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/* opt.debug &= ~(DBG_HASHING_VALUE); */
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}
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else
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{
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log_error (_("invalid debug-level '%s' given\n"), debug_level);
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g13_exit(2);
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}
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opt.debug |= debug_value;
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if (opt.debug && !opt.verbose)
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opt.verbose = 1;
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if (opt.debug)
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opt.quiet = 0;
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if (opt.debug & DBG_CRYPTO_VALUE )
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gcry_control (GCRYCTL_SET_DEBUG_FLAGS, 1);
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gcry_control (GCRYCTL_SET_VERBOSITY, (int)opt.verbose);
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if (opt.debug)
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parse_debug_flag (NULL, &opt.debug, debug_flags);
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}
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static void
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set_cmd (enum cmd_and_opt_values *ret_cmd, enum cmd_and_opt_values new_cmd)
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{
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enum cmd_and_opt_values cmd = *ret_cmd;
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if (!cmd || cmd == new_cmd)
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cmd = new_cmd;
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else
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{
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log_error (_("conflicting commands\n"));
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g13_exit (2);
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}
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*ret_cmd = cmd;
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}
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int
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main ( int argc, char **argv)
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{
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ARGPARSE_ARGS pargs;
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int orig_argc;
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char **orig_argv;
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gpg_error_t err = 0;
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/* const char *fname; */
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int may_coredump;
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char *last_configname = NULL;
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const char *configname = NULL;
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int debug_argparser = 0;
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int no_more_options = 0;
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char *logfile = NULL;
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int greeting = 0;
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int nogreeting = 0;
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/* int debug_wait = 0; */
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int use_random_seed = 1;
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/* int nodetach = 0; */
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/* int nokeysetup = 0; */
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enum cmd_and_opt_values cmd = 0;
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struct server_control_s ctrl;
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strlist_t recipients = NULL;
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early_system_init ();
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gnupg_reopen_std (G13_NAME);
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set_strusage (my_strusage);
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gcry_control (GCRYCTL_SUSPEND_SECMEM_WARN);
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log_set_prefix (G13_NAME, GPGRT_LOG_WITH_PREFIX);
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/* Make sure that our subsystems are ready. */
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i18n_init ();
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init_common_subsystems (&argc, &argv);
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npth_init ();
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/* Take extra care of the random pool. */
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gcry_control (GCRYCTL_USE_SECURE_RNDPOOL);
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may_coredump = disable_core_dumps ();
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g13_init_signals ();
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dotlock_create (NULL, 0); /* Register locking cleanup. */
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opt.session_env = session_env_new ();
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if (!opt.session_env)
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log_fatal ("error allocating session environment block: %s\n",
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strerror (errno));
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|
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/* First check whether we have a config file on the commandline. */
|
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orig_argc = argc;
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orig_argv = argv;
|
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pargs.argc = &argc;
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pargs.argv = &argv;
|
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pargs.flags= 1|(1<<6); /* Do not remove the args, ignore version. */
|
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pargs.flags= (ARGPARSE_FLAG_KEEP | ARGPARSE_FLAG_NOVERSION);
|
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while (gnupg_argparse (NULL, &pargs, opts))
|
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{
|
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switch (pargs.r_opt)
|
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{
|
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case oDebug:
|
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case oDebugAll:
|
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debug_argparser++;
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break;
|
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case oHomedir:
|
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gnupg_set_homedir (pargs.r.ret_str);
|
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break;
|
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}
|
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}
|
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/* Reset the flags. */
|
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pargs.flags &= ~(ARGPARSE_FLAG_KEEP | ARGPARSE_FLAG_NOVERSION);
|
||
|
||
/* Initialize the secure memory. */
|
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gcry_control (GCRYCTL_INIT_SECMEM, 16384, 0);
|
||
maybe_setuid = 0;
|
||
|
||
/*
|
||
* Now we are now working under our real uid
|
||
*/
|
||
|
||
/* Setup malloc hooks. */
|
||
{
|
||
struct assuan_malloc_hooks malloc_hooks;
|
||
|
||
malloc_hooks.malloc = gcry_malloc;
|
||
malloc_hooks.realloc = gcry_realloc;
|
||
malloc_hooks.free = gcry_free;
|
||
assuan_set_malloc_hooks (&malloc_hooks);
|
||
}
|
||
|
||
/* Prepare libassuan. */
|
||
assuan_set_gpg_err_source (GPG_ERR_SOURCE_DEFAULT);
|
||
assuan_set_system_hooks (ASSUAN_SYSTEM_NPTH);
|
||
setup_libassuan_logging (&opt.debug, NULL);
|
||
|
||
/* Setup a default control structure for command line mode. */
|
||
memset (&ctrl, 0, sizeof ctrl);
|
||
g13_init_default_ctrl (&ctrl);
|
||
ctrl.no_server = 1;
|
||
ctrl.status_fd = -1; /* No status output. */
|
||
|
||
/* The configuraton directories for use by gpgrt_argparser. */
|
||
gnupg_set_confdir (GNUPG_CONFDIR_SYS, gnupg_sysconfdir ());
|
||
gnupg_set_confdir (GNUPG_CONFDIR_USER, gnupg_homedir ());
|
||
|
||
argc = orig_argc;
|
||
argv = orig_argv;
|
||
pargs.argc = &argc;
|
||
pargs.argv = &argv;
|
||
pargs.flags |= (ARGPARSE_FLAG_RESET
|
||
| ARGPARSE_FLAG_KEEP
|
||
| ARGPARSE_FLAG_SYS
|
||
| ARGPARSE_FLAG_USER);
|
||
while (!no_more_options
|
||
&& gnupg_argparser (&pargs, opts, G13_NAME EXTSEP_S "conf"))
|
||
{
|
||
switch (pargs.r_opt)
|
||
{
|
||
case ARGPARSE_CONFFILE:
|
||
{
|
||
if (debug_argparser)
|
||
log_info (_("reading options from '%s'\n"),
|
||
pargs.r_type? pargs.r.ret_str: "[cmdline]");
|
||
if (pargs.r_type)
|
||
{
|
||
xfree (last_configname);
|
||
last_configname = xstrdup (pargs.r.ret_str);
|
||
configname = last_configname;
|
||
}
|
||
else
|
||
configname = NULL;
|
||
}
|
||
break;
|
||
|
||
case aGPGConfList:
|
||
case aGPGConfTest:
|
||
set_cmd (&cmd, pargs.r_opt);
|
||
nogreeting = 1;
|
||
/* nokeysetup = 1; */
|
||
break;
|
||
|
||
case aServer:
|
||
case aMount:
|
||
case aUmount:
|
||
case aSuspend:
|
||
case aResume:
|
||
case aCreate:
|
||
case aFindDevice:
|
||
set_cmd (&cmd, pargs.r_opt);
|
||
break;
|
||
|
||
case oOutput: opt.outfile = pargs.r.ret_str; break;
|
||
|
||
case oQuiet: opt.quiet = 1; break;
|
||
case oNoGreeting: nogreeting = 1; break;
|
||
case oNoTTY: 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 oNoDetach: /*nodetach = 1; */break;
|
||
|
||
case oDebug:
|
||
if (parse_debug_flag (pargs.r.ret_str, &opt.debug, debug_flags))
|
||
{
|
||
pargs.r_opt = ARGPARSE_INVALID_ARG;
|
||
pargs.err = ARGPARSE_PRINT_ERROR;
|
||
}
|
||
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 oStatusFD: ctrl.status_fd = pargs.r.ret_int; break;
|
||
case oLoggerFD: log_set_fd (pargs.r.ret_int ); break;
|
||
|
||
case oHomedir: gnupg_set_homedir (pargs.r.ret_str); break;
|
||
|
||
case oAgentProgram: opt.agent_program = pargs.r.ret_str; break;
|
||
case oGpgProgram: opt.gpg_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 oXauthority: opt.xauthority = xstrdup (pargs.r.ret_str); break;
|
||
|
||
case oFakedSystemTime:
|
||
{
|
||
time_t faked_time = isotime2epoch (pargs.r.ret_str);
|
||
if (faked_time == (time_t)(-1))
|
||
faked_time = (time_t)strtoul (pargs.r.ret_str, NULL, 10);
|
||
gnupg_set_time (faked_time, 0);
|
||
}
|
||
break;
|
||
|
||
case oNoSecmemWarn: gcry_control (GCRYCTL_DISABLE_SECMEM_WARN); break;
|
||
|
||
case oNoRandomSeedFile: use_random_seed = 0; break;
|
||
|
||
case oRecipient: /* Store the encryption key. */
|
||
add_to_strlist (&recipients, pargs.r.ret_str);
|
||
break;
|
||
|
||
case oType:
|
||
if (!strcmp (pargs.r.ret_str, "help"))
|
||
{
|
||
be_parse_conttype_name (NULL);
|
||
g13_exit (0);
|
||
}
|
||
cmdline_conttype = be_parse_conttype_name (pargs.r.ret_str);
|
||
if (!cmdline_conttype)
|
||
{
|
||
pargs.r_opt = ARGPARSE_INVALID_ARG;
|
||
pargs.err = ARGPARSE_PRINT_ERROR;
|
||
}
|
||
break;
|
||
|
||
default:
|
||
if (configname)
|
||
pargs.err = ARGPARSE_PRINT_WARNING;
|
||
else
|
||
pargs.err = ARGPARSE_PRINT_ERROR;
|
||
break;
|
||
}
|
||
}
|
||
gnupg_argparse (NULL, &pargs, NULL); /* Release internal state. */
|
||
|
||
/* Construct GPG arguments. */
|
||
{
|
||
strlist_t last;
|
||
last = append_to_strlist (&opt.gpg_arguments, "-z");
|
||
last = append_to_strlist (&last, "0");
|
||
last = append_to_strlist (&last, "--trust-model");
|
||
last = append_to_strlist (&last, "always");
|
||
(void) last;
|
||
}
|
||
|
||
if (!last_configname)
|
||
opt.config_filename = make_filename (gnupg_homedir (),
|
||
G13_NAME EXTSEP_S "conf",
|
||
NULL);
|
||
else
|
||
{
|
||
opt.config_filename = last_configname;
|
||
last_configname = NULL;
|
||
}
|
||
|
||
if (log_get_errorcount(0))
|
||
g13_exit(2);
|
||
|
||
/* Now that we have the options parsed we need to update the default
|
||
control structure. */
|
||
g13_init_default_ctrl (&ctrl);
|
||
ctrl.recipients = recipients;
|
||
recipients = NULL;
|
||
|
||
if (nogreeting)
|
||
greeting = 0;
|
||
|
||
if (greeting)
|
||
{
|
||
fprintf (stderr, "%s %s; %s\n",
|
||
strusage(11), strusage(13), strusage(14) );
|
||
fprintf (stderr, "%s\n", strusage(15) );
|
||
}
|
||
|
||
if (may_coredump && !opt.quiet)
|
||
log_info (_("WARNING: program may create a core file!\n"));
|
||
|
||
/* Print a warning if an argument looks like an option. */
|
||
if (!opt.quiet && !(pargs.flags & ARGPARSE_FLAG_STOP_SEEN))
|
||
{
|
||
int i;
|
||
|
||
for (i=0; i < argc; i++)
|
||
if (argv[i][0] == '-' && argv[i][1] == '-')
|
||
log_info (_("Note: '%s' is not considered an option\n"), argv[i]);
|
||
}
|
||
|
||
|
||
if (logfile)
|
||
{
|
||
log_set_file (logfile);
|
||
log_set_prefix (NULL, (GPGRT_LOG_WITH_PREFIX
|
||
| GPGRT_LOG_WITH_TIME
|
||
| GPGRT_LOG_WITH_PID ));
|
||
}
|
||
|
||
if (gnupg_faked_time_p ())
|
||
{
|
||
gnupg_isotime_t tbuf;
|
||
|
||
log_info (_("WARNING: running with faked system time: "));
|
||
gnupg_get_isotime (tbuf);
|
||
dump_isotime (tbuf);
|
||
log_printf ("\n");
|
||
}
|
||
|
||
/* Print any pending secure memory warnings. */
|
||
gcry_control (GCRYCTL_RESUME_SECMEM_WARN);
|
||
|
||
/* Setup the debug flags for all subsystems. */
|
||
set_debug ();
|
||
|
||
/* Install emergency cleanup handler. */
|
||
g13_install_emergency_cleanup ();
|
||
|
||
/* Terminate if we found any error until now. */
|
||
if (log_get_errorcount(0))
|
||
g13_exit (2);
|
||
|
||
/* Set the standard GnuPG random seed file. */
|
||
if (use_random_seed)
|
||
{
|
||
char *p = make_filename (gnupg_homedir (), "random_seed", NULL);
|
||
gcry_control (GCRYCTL_SET_RANDOM_SEED_FILE, p);
|
||
xfree(p);
|
||
}
|
||
|
||
/* Store given filename into FNAME. */
|
||
/* fname = argc? *argv : NULL; */
|
||
|
||
/* Parse all given encryption keys. This does a lookup of the keys
|
||
and stops if any of the given keys was not found. */
|
||
#if 0 /* Currently not implemented. */
|
||
if (!nokeysetup)
|
||
{
|
||
strlist_t sl;
|
||
int failed = 0;
|
||
|
||
for (sl = ctrl->recipients; sl; sl = sl->next)
|
||
if (check_encryption_key ())
|
||
failed = 1;
|
||
if (failed)
|
||
g13_exit (1);
|
||
}
|
||
#endif /*0*/
|
||
|
||
/* Dispatch command. */
|
||
err = 0;
|
||
switch (cmd)
|
||
{
|
||
case aGPGConfList:
|
||
{ /* List options and default values in the GPG Conf format. */
|
||
char *config_filename_esc = percent_escape (opt.config_filename, NULL);
|
||
|
||
printf ("gpgconf-g13.conf:%lu:\"%s\n",
|
||
GC_OPT_FLAG_DEFAULT, config_filename_esc);
|
||
xfree (config_filename_esc);
|
||
|
||
printf ("verbose:%lu:\n", GC_OPT_FLAG_NONE);
|
||
printf ("quiet:%lu:\n", GC_OPT_FLAG_NONE);
|
||
printf ("debug-level:%lu:\"none:\n", GC_OPT_FLAG_DEFAULT);
|
||
printf ("log-file:%lu:\n", GC_OPT_FLAG_NONE);
|
||
}
|
||
break;
|
||
case aGPGConfTest:
|
||
/* This is merely a dummy command to test whether the
|
||
configuration file is valid. */
|
||
break;
|
||
|
||
case aServer:
|
||
{
|
||
start_idle_task ();
|
||
ctrl.no_server = 0;
|
||
err = g13_server (&ctrl);
|
||
if (err)
|
||
log_error ("server exited with error: %s <%s>\n",
|
||
gpg_strerror (err), gpg_strsource (err));
|
||
else
|
||
g13_request_shutdown ();
|
||
}
|
||
break;
|
||
|
||
case aFindDevice:
|
||
{
|
||
char *blockdev;
|
||
|
||
if (argc != 1)
|
||
wrong_args ("--find-device name");
|
||
|
||
err = call_syshelp_find_device (&ctrl, argv[0], &blockdev);
|
||
if (err)
|
||
log_error ("error finding device '%s': %s <%s>\n",
|
||
argv[0], gpg_strerror (err), gpg_strsource (err));
|
||
else
|
||
puts (blockdev);
|
||
}
|
||
break;
|
||
|
||
case aCreate: /* Create a new container. */
|
||
{
|
||
if (argc != 1)
|
||
wrong_args ("--create filename");
|
||
start_idle_task ();
|
||
err = g13_create_container (&ctrl, argv[0]);
|
||
if (err)
|
||
log_error ("error creating a new container: %s <%s>\n",
|
||
gpg_strerror (err), gpg_strsource (err));
|
||
else
|
||
g13_request_shutdown ();
|
||
}
|
||
break;
|
||
|
||
case aMount: /* Mount a container. */
|
||
{
|
||
if (argc != 1 && argc != 2 )
|
||
wrong_args ("--mount filename [mountpoint]");
|
||
start_idle_task ();
|
||
err = g13_mount_container (&ctrl, argv[0], argc == 2?argv[1]:NULL);
|
||
if (err)
|
||
log_error ("error mounting container '%s': %s <%s>\n",
|
||
*argv, gpg_strerror (err), gpg_strsource (err));
|
||
}
|
||
break;
|
||
|
||
case aUmount: /* Unmount a mounted container. */
|
||
{
|
||
if (argc != 1)
|
||
wrong_args ("--umount filename");
|
||
err = g13_umount_container (&ctrl, argv[0], NULL);
|
||
if (err)
|
||
log_error ("error unmounting container '%s': %s <%s>\n",
|
||
*argv, gpg_strerror (err), gpg_strsource (err));
|
||
}
|
||
break;
|
||
|
||
case aSuspend: /* Suspend a container. */
|
||
{
|
||
/* Fixme: Should we add a suspend all container option? */
|
||
if (argc != 1)
|
||
wrong_args ("--suspend filename");
|
||
err = g13_suspend_container (&ctrl, argv[0]);
|
||
if (err)
|
||
log_error ("error suspending container '%s': %s <%s>\n",
|
||
*argv, gpg_strerror (err), gpg_strsource (err));
|
||
}
|
||
break;
|
||
|
||
case aResume: /* Resume a suspended container. */
|
||
{
|
||
/* Fixme: Should we add a resume all container option? */
|
||
if (argc != 1)
|
||
wrong_args ("--resume filename");
|
||
err = g13_resume_container (&ctrl, argv[0]);
|
||
if (err)
|
||
log_error ("error resuming container '%s': %s <%s>\n",
|
||
*argv, gpg_strerror (err), gpg_strsource (err));
|
||
}
|
||
break;
|
||
|
||
default:
|
||
log_error (_("invalid command (there is no implicit command)\n"));
|
||
break;
|
||
}
|
||
|
||
g13_deinit_default_ctrl (&ctrl);
|
||
|
||
if (!err)
|
||
join_idle_task ();
|
||
|
||
/* Cleanup. */
|
||
g13_exit (0);
|
||
return 8; /*NOTREACHED*/
|
||
}
|
||
|
||
|
||
/* Store defaults into the per-connection CTRL object. */
|
||
void
|
||
g13_init_default_ctrl (ctrl_t ctrl)
|
||
{
|
||
ctrl->conttype = cmdline_conttype? cmdline_conttype : CONTTYPE_ENCFS;
|
||
}
|
||
|
||
|
||
/* Release remaining resources allocated in the CTRL object. */
|
||
void
|
||
g13_deinit_default_ctrl (ctrl_t ctrl)
|
||
{
|
||
call_syshelp_release (ctrl);
|
||
FREE_STRLIST (ctrl->recipients);
|
||
}
|
||
|
||
|
||
/* Request a shutdown. This can be used when the process should
|
||
* finish instead of running the idle task. */
|
||
void
|
||
g13_request_shutdown (void)
|
||
{
|
||
shutdown_pending++;
|
||
}
|
||
|
||
|
||
/* This function is called for each signal we catch. It is run in the
|
||
main context or the one of a NPth thread and thus it is not
|
||
restricted in what it may do. */
|
||
static void
|
||
handle_signal (int signo)
|
||
{
|
||
switch (signo)
|
||
{
|
||
#ifndef HAVE_W32_SYSTEM
|
||
case SIGHUP:
|
||
log_info ("SIGHUP received - re-reading configuration\n");
|
||
/* Fixme: Not yet implemented. */
|
||
break;
|
||
|
||
case SIGUSR1:
|
||
log_info ("SIGUSR1 received - printing internal information:\n");
|
||
/* Fixme: We need to see how to integrate pth dumping into our
|
||
logging system. */
|
||
/* pth_ctrl (PTH_CTRL_DUMPSTATE, log_get_stream ()); */
|
||
mountinfo_dump_all ();
|
||
break;
|
||
|
||
case SIGUSR2:
|
||
log_info ("SIGUSR2 received - no action defined\n");
|
||
break;
|
||
|
||
case SIGTERM:
|
||
if (!shutdown_pending)
|
||
log_info ("SIGTERM received - shutting down ...\n");
|
||
else
|
||
log_info ("SIGTERM received - still %u runners active\n",
|
||
runner_get_threads ());
|
||
shutdown_pending++;
|
||
if (shutdown_pending > 2)
|
||
{
|
||
log_info ("shutdown forced\n");
|
||
log_info ("%s %s stopped\n", strusage(11), strusage(13) );
|
||
g13_exit (0);
|
||
}
|
||
break;
|
||
|
||
case SIGINT:
|
||
log_info ("SIGINT received - immediate shutdown\n");
|
||
log_info( "%s %s stopped\n", strusage(11), strusage(13));
|
||
g13_exit (0);
|
||
break;
|
||
#endif /*!HAVE_W32_SYSTEM*/
|
||
|
||
default:
|
||
log_info ("signal %d received - no action defined\n", signo);
|
||
}
|
||
}
|
||
|
||
|
||
/* This ticker function is called about every TIMERTICK_INTERVAL_SEC
|
||
seconds. */
|
||
static void
|
||
handle_tick (void)
|
||
{
|
||
/* log_debug ("TICK\n"); */
|
||
}
|
||
|
||
|
||
/* The idle task. We use a separate thread to do idle stuff and to
|
||
catch signals. */
|
||
static void *
|
||
idle_task (void *dummy_arg)
|
||
{
|
||
int signo; /* The number of a raised signal is stored here. */
|
||
int saved_errno;
|
||
struct timespec abstime;
|
||
struct timespec curtime;
|
||
struct timespec timeout;
|
||
int ret;
|
||
|
||
(void)dummy_arg;
|
||
|
||
/* Create the event to catch the signals. */
|
||
#ifndef HAVE_W32_SYSTEM
|
||
npth_sigev_init ();
|
||
npth_sigev_add (SIGHUP);
|
||
npth_sigev_add (SIGUSR1);
|
||
npth_sigev_add (SIGUSR2);
|
||
npth_sigev_add (SIGINT);
|
||
npth_sigev_add (SIGTERM);
|
||
npth_sigev_fini ();
|
||
#endif
|
||
|
||
npth_clock_gettime (&abstime);
|
||
abstime.tv_sec += TIMERTICK_INTERVAL_SEC;
|
||
|
||
for (;;)
|
||
{
|
||
/* The shutdown flag allows us to terminate the idle task. */
|
||
if (shutdown_pending)
|
||
{
|
||
runner_cancel_all ();
|
||
|
||
if (!runner_get_threads ())
|
||
break; /* ready */
|
||
}
|
||
|
||
npth_clock_gettime (&curtime);
|
||
if (!(npth_timercmp (&curtime, &abstime, <)))
|
||
{
|
||
/* Timeout. */
|
||
handle_tick ();
|
||
npth_clock_gettime (&abstime);
|
||
abstime.tv_sec += TIMERTICK_INTERVAL_SEC;
|
||
}
|
||
npth_timersub (&abstime, &curtime, &timeout);
|
||
|
||
#ifndef HAVE_W32_SYSTEM
|
||
ret = npth_pselect (0, NULL, NULL, NULL, &timeout, npth_sigev_sigmask());
|
||
saved_errno = errno;
|
||
|
||
while (npth_sigev_get_pending(&signo))
|
||
handle_signal (signo);
|
||
#else
|
||
ret = npth_eselect (0, NULL, NULL, NULL, &timeout, NULL, NULL);
|
||
saved_errno = errno;
|
||
#endif
|
||
|
||
if (ret == -1 && saved_errno != EINTR)
|
||
{
|
||
log_error (_("npth_pselect failed: %s - waiting 1s\n"),
|
||
strerror (saved_errno));
|
||
npth_sleep (1);
|
||
continue;
|
||
}
|
||
|
||
if (ret <= 0)
|
||
{
|
||
/* Interrupt or timeout. Will be handled when calculating the
|
||
next timeout. */
|
||
continue;
|
||
}
|
||
|
||
/* Here one would add processing of file descriptors. */
|
||
}
|
||
|
||
log_info (_("%s %s stopped\n"), strusage(11), strusage(13));
|
||
return NULL;
|
||
}
|
||
|
||
|
||
/* Start the idle task. */
|
||
static void
|
||
start_idle_task (void)
|
||
{
|
||
npth_attr_t tattr;
|
||
npth_t thread;
|
||
sigset_t sigs; /* The set of signals we want to catch. */
|
||
int err;
|
||
|
||
#ifndef HAVE_W32_SYSTEM
|
||
/* These signals should always go to the idle task, so they need to
|
||
be blocked everywhere else. We assume start_idle_task is called
|
||
from the main thread before any other threads are created. */
|
||
sigemptyset (&sigs);
|
||
sigaddset (&sigs, SIGHUP);
|
||
sigaddset (&sigs, SIGUSR1);
|
||
sigaddset (&sigs, SIGUSR2);
|
||
sigaddset (&sigs, SIGINT);
|
||
sigaddset (&sigs, SIGTERM);
|
||
npth_sigmask (SIG_BLOCK, &sigs, NULL);
|
||
#endif
|
||
|
||
npth_attr_init (&tattr);
|
||
npth_attr_setdetachstate (&tattr, NPTH_CREATE_JOINABLE);
|
||
|
||
err = npth_create (&thread, &tattr, idle_task, NULL);
|
||
if (err)
|
||
{
|
||
log_fatal ("error starting idle task: %s\n", strerror (err));
|
||
return; /*NOTREACHED*/
|
||
}
|
||
npth_setname_np (thread, "idle-task");
|
||
idle_task_thread = thread;
|
||
npth_attr_destroy (&tattr);
|
||
}
|
||
|
||
|
||
/* Wait for the idle task to finish. */
|
||
static void
|
||
join_idle_task (void)
|
||
{
|
||
int err;
|
||
|
||
/* FIXME: This assumes that a valid pthread_t is non-null. That is
|
||
not guaranteed. */
|
||
if (idle_task_thread)
|
||
{
|
||
err = npth_join (idle_task_thread, NULL);
|
||
if (err)
|
||
log_error ("waiting for idle task thread failed: %s\n",
|
||
strerror (err));
|
||
}
|
||
}
|