2 * cryptsetup - setup cryptographic volumes for dm-crypt
4 * Copyright (C) 2004, Christophe Saout <christophe@saout.de>
5 * Copyright (C) 2004-2007, Clemens Fruhwirth <clemens@endorphin.org>
6 * Copyright (C) 2009-2012, Red Hat, Inc. All rights reserved.
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * version 2 as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22 #include "cryptsetup.h"
27 int opt_batch_mode = 0;
29 /* interrupt handling */
30 volatile int quit = 0;
31 static int signals_blocked = 0;
33 static void int_handler(int sig __attribute__((__unused__)))
38 int tools_signals_blocked(void)
40 return signals_blocked;
43 void set_int_block(int block)
45 sigset_t signals_open;
47 log_dbg("%slocking interruption on signal.", block ? "B" : "Unb");
49 sigemptyset(&signals_open);
50 sigaddset(&signals_open, SIGINT);
51 sigaddset(&signals_open, SIGTERM);
52 sigprocmask(block ? SIG_SETMASK : SIG_UNBLOCK, &signals_open, NULL);
53 signals_blocked = block;
57 void set_int_handler(int block)
59 struct sigaction sigaction_open;
61 log_dbg("Installing SIGINT/SIGTERM handler.");
62 memset(&sigaction_open, 0, sizeof(struct sigaction));
63 sigaction_open.sa_handler = int_handler;
64 sigaction(SIGINT, &sigaction_open, 0);
65 sigaction(SIGTERM, &sigaction_open, 0);
69 void check_signal(int *r)
75 __attribute__((format(printf, 5, 6)))
76 void clogger(struct crypt_device *cd, int level, const char *file, int line,
77 const char *format, ...)
82 va_start(argp, format);
84 if (vasprintf(&target, format, argp) > 0) {
86 crypt_log(cd, level, target);
89 printf("# %s:%d %s\n", file ?: "?", line, target);
92 printf("# %s\n", target);
100 void tool_log(int level, const char *msg, void *usrptr __attribute__((unused)))
104 case CRYPT_LOG_NORMAL:
107 case CRYPT_LOG_VERBOSE:
111 case CRYPT_LOG_ERROR:
114 case CRYPT_LOG_DEBUG:
116 printf("# %s\n", msg);
119 fprintf(stderr, "Internal error on logging class for msg: %s", msg);
124 void quiet_log(int level, const char *msg, void *usrptr)
126 if (!opt_verbose && (level == CRYPT_LOG_ERROR || level == CRYPT_LOG_NORMAL))
127 level = CRYPT_LOG_VERBOSE;
128 tool_log(level, msg, usrptr);
131 int yesDialog(const char *msg, void *usrptr __attribute__((unused)))
137 block = tools_signals_blocked();
141 if(isatty(STDIN_FILENO) && !opt_batch_mode) {
142 log_std("\nWARNING!\n========\n");
143 log_std("%s\n\nAre you sure? (Type uppercase yes): ", msg);
144 if(getline(&answer, &size, stdin) == -1) {
146 /* Aborted by signal */
148 log_err(_("Error reading response from terminal.\n"));
150 log_dbg("Query interrupted on signal.");
151 } else if(strcmp(answer, "YES\n"))
162 void show_status(int errcode)
164 char error[256], *error_;
170 log_std(_("Command successful.\n"));
174 crypt_get_error(error, sizeof(error));
177 error_ = strerror_r(-errcode, error, sizeof(error));
178 if (error_ != error) {
179 strncpy(error, error_, sizeof(error));
180 error[sizeof(error) - 1] = '\0';
184 log_err(_("Command failed with code %i"), -errcode);
186 log_err(": %s\n", error);
191 const char *uuid_or_device(const char *spec)
193 static char device[PATH_MAX];
195 int i = 0, uuid_len = 5;
197 /* Check if it is correct UUID=<LUKS_UUID> format */
198 if (spec && !strncmp(spec, "UUID=", uuid_len)) {
199 strcpy(device, "/dev/disk/by-uuid/");
200 ptr = &device[strlen(device)];
202 while ((s = spec[i++]) && i < PATH_MAX) {
203 if (!isxdigit(s) && s != '-')
204 return spec; /* Bail it out */
216 __attribute__ ((noreturn)) void usage(poptContext popt_context,
217 int exitcode, const char *error,
220 poptPrintUsage(popt_context, stderr, 0);
222 log_err("%s: %s\n", more, error);
223 poptFreeContext(popt_context);
227 void dbg_version_and_cmd(int argc, const char **argv)
231 log_std("# %s %s processing \"", PACKAGE_NAME, PACKAGE_VERSION);
232 for (i = 0; i < argc; i++) {
235 log_std("%s", argv[i]);
240 /* Translate exit code to simple codes */
241 int translate_errno(int r)
244 case 0: r = EXIT_SUCCESS; break;
246 case -EBUSY: r = 5; break;
248 case -ENODEV: r = 4; break;
249 case -ENOMEM: r = 3; break;
250 case -EPERM: r = 2; break;
254 default: r = EXIT_FAILURE;