mirror of
git://git.gnupg.org/gnupg.git
synced 2024-12-22 10:19:57 +01:00
096e7457ec
The asymmetric quotes used by GNU in the past (`...') don't render
nicely on modern systems. We now use two \x27 characters ('...').
The proper solution would be to use the correct Unicode symmetric
quotes here. However this has the disadvantage that the system
requires Unicode support. We don't want that today. If Unicode is
available a generated po file can be used to output proper quotes. A
simple sed script like the one used for en@quote is sufficient to
change them.
The changes have been done by applying
sed -i "s/\`\([^'\`]*\)'/'\1'/g"
to most files and fixing obvious problems by hand. The msgid strings in
the po files were fixed with a similar command.
980 lines
26 KiB
C
980 lines
26 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 <http://www.gnu.org/licenses/>.
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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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#include "g13.h"
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#include <gcrypt.h>
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#include <assuan.h>
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#include "i18n.h"
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#include "sysutils.h"
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#include "gc-opt-flags.h"
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#include "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 "mountinfo.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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aServer,
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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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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 (aServer, "server", N_("Run in server mode")),
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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 (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_s_s (oOptions, "options", N_("|FILE|read options from FILE")),
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ARGPARSE_p_u (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_s_n (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 timer tick interval used by the idle task. */
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#define TIMERTICK_INTERVAL_SEC (1)
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/* Global variable to keep an error count. */
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int g13_errors_seen = 0;
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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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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 emergency_cleanup (void);
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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 11: p = "g13 (GnuPG)";
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break;
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case 13: p = VERSION; 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 = opt.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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fputs (_("usage: g13 [options] "), stderr);
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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_ASSUAN_VALUE|DBG_MOUNT_VALUE;
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else if (!strcmp (debug_level, "advanced") || (numok && numlvl <= 5))
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opt.debug = DBG_ASSUAN_VALUE|DBG_MOUNT_VALUE;
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else if (!strcmp (debug_level, "expert") || (numok && numlvl <= 8))
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opt.debug = (DBG_ASSUAN_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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log_info ("enabled debug flags:%s%s%s%s%s\n",
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(opt.debug & DBG_MOUNT_VALUE )? " mount":"",
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(opt.debug & DBG_CRYPTO_VALUE )? " crypto":"",
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(opt.debug & DBG_MEMORY_VALUE )? " memory":"",
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(opt.debug & DBG_MEMSTAT_VALUE)? " memstat":"",
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(opt.debug & DBG_ASSUAN_VALUE )? " assuan":"");
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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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FILE *configfp = NULL;
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char *configname = NULL;
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unsigned configlineno;
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int parse_debug = 0;
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int no_more_options = 0;
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int default_config =1;
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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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/*mtrace();*/
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gnupg_reopen_std ("g13");
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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", 1);
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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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/* Check that the Libgcrypt is suitable. */
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if (!gcry_check_version (NEED_LIBGCRYPT_VERSION) )
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log_fatal (_("%s is too old (need %s, have %s)\n"), "libgcrypt",
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NEED_LIBGCRYPT_VERSION, gcry_check_version (NULL) );
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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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gnupg_init_signals (0, emergency_cleanup);
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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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opt.homedir = default_homedir ();
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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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while (arg_parse( &pargs, opts))
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{
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if (pargs.r_opt == oDebug || pargs.r_opt == oDebugAll)
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parse_debug++;
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else if (pargs.r_opt == oOptions)
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{ /* Yes, there is one, so we do not try the default one but
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read the config file when it is encountered at the
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commandline. */
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default_config = 0;
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}
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else if (pargs.r_opt == oNoOptions)
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default_config = 0; /* --no-options */
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else if (pargs.r_opt == oHomedir)
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opt.homedir = pargs.r.ret_str;
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}
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/* Initialize the secure memory. */
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gcry_control (GCRYCTL_INIT_SECMEM, 16384, 0);
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maybe_setuid = 0;
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/*
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Now we are now working under our real uid
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*/
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/* Setup malloc hooks. */
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{
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struct assuan_malloc_hooks malloc_hooks;
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malloc_hooks.malloc = gcry_malloc;
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malloc_hooks.realloc = gcry_realloc;
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malloc_hooks.free = gcry_free;
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assuan_set_malloc_hooks (&malloc_hooks);
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}
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/* Prepare libassuan. */
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assuan_set_gpg_err_source (GPG_ERR_SOURCE_DEFAULT);
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assuan_set_system_hooks (ASSUAN_SYSTEM_NPTH);
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setup_libassuan_logging (&opt.debug);
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/* Setup a default control structure for command line mode. */
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memset (&ctrl, 0, sizeof ctrl);
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g13_init_default_ctrl (&ctrl);
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ctrl.no_server = 1;
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ctrl.status_fd = -1; /* No status output. */
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/* Set the default option file */
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if (default_config )
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configname = make_filename (opt.homedir, "g13.conf", NULL);
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argc = orig_argc;
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argv = orig_argv;
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pargs.argc = &argc;
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pargs.argv = &argv;
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pargs.flags = 1; /* Do not remove the args. */
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next_pass:
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if (configname)
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{
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configlineno = 0;
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configfp = fopen (configname, "r");
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if (!configfp)
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{
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if (default_config)
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{
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if (parse_debug)
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log_info (_("NOTE: no default option file '%s'\n"), configname);
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}
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else
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{
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log_error (_("option file '%s': %s\n"),
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configname, strerror(errno));
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g13_exit(2);
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}
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xfree (configname);
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configname = NULL;
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}
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if (parse_debug && configname)
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log_info (_("reading options from '%s'\n"), configname);
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default_config = 0;
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}
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while (!no_more_options
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&& optfile_parse (configfp, configname, &configlineno, &pargs, opts))
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{
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switch (pargs.r_opt)
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{
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case aGPGConfList:
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case aGPGConfTest:
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set_cmd (&cmd, pargs.r_opt);
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nogreeting = 1;
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nokeysetup = 1;
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break;
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case aServer:
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case aMount:
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case aUmount:
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nokeysetup = 1;
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case aCreate:
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set_cmd (&cmd, pargs.r_opt);
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break;
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case oOutput: opt.outfile = pargs.r.ret_str; break;
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case oQuiet: opt.quiet = 1; break;
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case oNoGreeting: nogreeting = 1; break;
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case oNoTTY: break;
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case oDryRun: opt.dry_run = 1; break;
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case oVerbose:
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opt.verbose++;
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gcry_control (GCRYCTL_SET_VERBOSITY, (int)opt.verbose);
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break;
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case oNoVerbose:
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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: 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 oStatusFD: ctrl.status_fd = pargs.r.ret_int; break;
|
||
case oLoggerFD: log_set_fd (pargs.r.ret_int ); break;
|
||
|
||
case oNoOptions: break; /* no-options */
|
||
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 oHomedir: opt.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;
|
||
|
||
|
||
default:
|
||
pargs.err = configfp? ARGPARSE_PRINT_WARNING:ARGPARSE_PRINT_ERROR;
|
||
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, "g13.conf", 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);
|
||
|
||
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, 1|2|4);
|
||
}
|
||
|
||
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 a regular exit handler to make real sure that the secure
|
||
memory gets wiped out. */
|
||
if (atexit (emergency_cleanup))
|
||
{
|
||
log_error ("atexit failed\n");
|
||
g13_exit (2);
|
||
}
|
||
|
||
/* 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 (opt.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 = 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
|
||
shutdown_pending++;
|
||
}
|
||
break;
|
||
|
||
case aCreate: /* Create a new container. */
|
||
{
|
||
if (argc != 1)
|
||
wrong_args ("--create filename");
|
||
start_idle_task ();
|
||
err = g13_create_container (&ctrl, argv[0], recipients);
|
||
if (err)
|
||
log_error ("error creating a new container: %s <%s>\n",
|
||
gpg_strerror (err), gpg_strsource (err));
|
||
else
|
||
shutdown_pending++;
|
||
}
|
||
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;
|
||
|
||
default:
|
||
log_error (_("invalid command (there is no implicit command)\n"));
|
||
break;
|
||
}
|
||
|
||
if (!err)
|
||
join_idle_task ();
|
||
|
||
/* Cleanup. */
|
||
g13_exit (0);
|
||
return 8; /*NOTREACHED*/
|
||
}
|
||
|
||
|
||
/* Note: This function is used by signal handlers!. */
|
||
static void
|
||
emergency_cleanup (void)
|
||
{
|
||
gcry_control (GCRYCTL_TERM_SECMEM );
|
||
}
|
||
|
||
|
||
void
|
||
g13_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 : g13_errors_seen? 1 : 0;
|
||
exit (rc);
|
||
}
|
||
|
||
|
||
/* Store defaults into the per-connection CTRL object. */
|
||
void
|
||
g13_init_default_ctrl (struct server_control_s *ctrl)
|
||
{
|
||
ctrl->conttype = CONTTYPE_ENCFS;
|
||
}
|
||
|
||
|
||
/* 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));
|
||
}
|
||
}
|