const char *password,
const char *options) {
- char _cleanup_free_ *p = NULL, *n = NULL, *d = NULL, *u = NULL, *from = NULL, *to = NULL, *e = NULL;
- FILE _cleanup_fclose_ *f = NULL;
- bool noauto, nofail;
+ _cleanup_free_ char *p = NULL, *n = NULL, *d = NULL, *u = NULL, *from = NULL, *to = NULL, *e = NULL;
+ _cleanup_fclose_ FILE *f = NULL;
+ bool noauto, nofail, tmp, swap;
assert(name);
assert(device);
noauto = has_option(options, "noauto");
nofail = has_option(options, "nofail");
+ tmp = has_option(options, "tmp");
+ swap = has_option(options, "swap");
+
+ if (tmp && swap) {
+ log_error("Device '%s' cannot be both 'tmp' and 'swap'. Ignoring.", name);
+ return -EINVAL;
+ }
n = unit_name_from_path_instance("systemd-cryptsetup", name, ".service");
if (!n)
return -errno;
}
- fprintf(f,
+ fputs(
"# Automatically generated by systemd-cryptsetup-generator\n\n"
"[Unit]\n"
- "Description=Cryptography Setup for %%I\n"
+ "Description=Cryptography Setup for %I\n"
"Documentation=man:systemd-cryptsetup@.service(8) man:crypttab(5)\n"
"SourcePath=/etc/crypttab\n"
"Conflicts=umount.target\n"
"DefaultDependencies=no\n"
- "BindsTo=%s dev-mapper-%%i.device\n"
- "After=systemd-readahead-collect.service systemd-readahead-replay.service %s\n"
- "Before=umount.target\n",
- d, d);
+ "BindsTo=dev-mapper-%i.device\n"
+ "After=systemd-readahead-collect.service systemd-readahead-replay.service\n",
+ f);
if (!nofail)
fprintf(f,
"Before=cryptsetup.target\n");
- if (password && (streq(password, "/dev/urandom") ||
- streq(password, "/dev/random") ||
- streq(password, "/dev/hw_random")))
- fputs("After=systemd-random-seed-load.service\n", f);
+ if (password) {
+ if (streq(password, "/dev/urandom") ||
+ streq(password, "/dev/random") ||
+ streq(password, "/dev/hw_random"))
+ fputs("After=systemd-random-seed-load.service\n", f);
+ else if (!streq(password, "-") &&
+ !streq(password, "none"))
+ fprintf(f,
+ "RequiresMountsFor=%s\n",
+ password);
+ }
+
+ if (is_device_path(u))
+ fprintf(f,
+ "BindsTo=%s\n"
+ "After=%s\n"
+ "Before=umount.target\n",
+ d, d);
else
- fputs("Before=local-fs.target\n", f);
+ fprintf(f,
+ "RequiresMountsFor=%s\n",
+ u);
fprintf(f,
"\n[Service]\n"
name, u, strempty(password), strempty(options),
name);
- if (has_option(options, "tmp"))
+ if (tmp)
fprintf(f,
"ExecStartPost=/sbin/mke2fs '/dev/mapper/%s'\n",
name);
- if (has_option(options, "swap"))
+ if (swap)
fprintf(f,
"ExecStartPost=/sbin/mkswap '/dev/mapper/%s'\n",
name);
mkdir_parents_label(to, 0755);
if (symlink(from, to) < 0) {
- log_error("Failed to create symlink '%s' to '%s': %m", from, to);
+ log_error("Failed to create symlink %s: %m", to);
return -errno;
}
mkdir_parents_label(to, 0755);
if (symlink(from, to) < 0) {
- log_error("Failed to create symlink '%s' to '%s': %m", from, to);
+ log_error("Failed to create symlink %s: %m", to);
return -errno;
}
}
mkdir_parents_label(to, 0755);
if (symlink(from, to) < 0) {
- log_error("Failed to create symlink '%s' to '%s': %m", from, to);
+ log_error("Failed to create symlink %s: %m", to);
return -errno;
}
+ if (!noauto && !nofail) {
+ int r;
+ free(p);
+ p = strjoin(arg_dest, "/dev-mapper-", e, ".device.d/50-job-timeout-sec-0.conf", NULL);
+ if (!p)
+ return log_oom();
+
+ mkdir_parents_label(p, 0755);
+
+ r = write_string_file(p,
+ "# Automatically generated by systemd-cryptsetup-generator\n\n"
+ "[Unit]\n"
+ "JobTimeoutSec=0\n"); /* the binary handles timeouts anyway */
+ if (r)
+ return r;
+ }
+
return 0;
}
-static int parse_proc_cmdline(char ***arg_proc_cmdline_disks) {
- char _cleanup_free_ *line = NULL;
+static int parse_proc_cmdline(char ***arg_proc_cmdline_disks, char ***arg_proc_cmdline_options, char **arg_proc_cmdline_keyfile) {
+ _cleanup_free_ char *line = NULL;
char *w = NULL, *state = NULL;
int r;
size_t l;
}
FOREACH_WORD_QUOTED(w, l, line, state) {
- char _cleanup_free_ *word = NULL;
+ _cleanup_free_ char *word = NULL;
word = strndup(w, l);
if (!word)
}
} else if (startswith(word, "luks.uuid=")) {
- char **t;
-
- t = strv_append(*arg_proc_cmdline_disks, word + 10);
- if (!t)
+ if (strv_extend(arg_proc_cmdline_disks, word + 10) < 0)
return log_oom();
- strv_free(*arg_proc_cmdline_disks);
- *arg_proc_cmdline_disks = t;
-
} else if (startswith(word, "rd.luks.uuid=")) {
if (in_initrd()) {
- char **t;
+ if (strv_extend(arg_proc_cmdline_disks, word + 13) < 0)
+ return log_oom();
+ }
+
+ } else if (startswith(word, "luks.options=")) {
+ if (strv_extend(arg_proc_cmdline_options, word + 13) < 0)
+ return log_oom();
- t = strv_append(*arg_proc_cmdline_disks, word + 13);
- if (!t)
+ } else if (startswith(word, "rd.luks.options=")) {
+
+ if (in_initrd()) {
+ if (strv_extend(arg_proc_cmdline_options, word + 16) < 0)
return log_oom();
+ }
- strv_free(*arg_proc_cmdline_disks);
- *arg_proc_cmdline_disks = t;
+ } else if (startswith(word, "luks.key=")) {
+ if (*arg_proc_cmdline_keyfile)
+ free(*arg_proc_cmdline_keyfile);
+ *arg_proc_cmdline_keyfile = strdup(word + 9);
+ if (!*arg_proc_cmdline_keyfile)
+ return log_oom();
+
+ } else if (startswith(word, "rd.luks.key=")) {
+
+ if (in_initrd()) {
+ if (*arg_proc_cmdline_keyfile)
+ free(*arg_proc_cmdline_keyfile);
+ *arg_proc_cmdline_keyfile = strdup(word + 12);
+ if (!*arg_proc_cmdline_keyfile)
+ return log_oom();
}
} else if (startswith(word, "luks.") ||
}
int main(int argc, char *argv[]) {
- FILE _cleanup_fclose_ *f = NULL;
+ _cleanup_strv_free_ char **arg_proc_cmdline_disks_done = NULL;
+ _cleanup_strv_free_ char **arg_proc_cmdline_disks = NULL;
+ _cleanup_strv_free_ char **arg_proc_cmdline_options = NULL;
+ _cleanup_free_ char *arg_proc_cmdline_keyfile = NULL;
+ _cleanup_fclose_ FILE *f = NULL;
unsigned n = 0;
int r = EXIT_SUCCESS;
char **i;
- char _cleanup_strv_free_ **arg_proc_cmdline_disks_done = NULL;
- char _cleanup_strv_free_ **arg_proc_cmdline_disks = NULL;
if (argc > 1 && argc != 4) {
log_error("This program takes three or no arguments.");
umask(0022);
- if (parse_proc_cmdline(&arg_proc_cmdline_disks) < 0)
+ if (parse_proc_cmdline(&arg_proc_cmdline_disks, &arg_proc_cmdline_options, &arg_proc_cmdline_keyfile) < 0)
return EXIT_FAILURE;
if (!arg_enabled)
return EXIT_SUCCESS;
if (arg_read_crypttab) {
- f = fopen("/etc/crypttab", "re");
+ struct stat st;
+ f = fopen("/etc/crypttab", "re");
if (!f) {
if (errno == ENOENT)
r = EXIT_SUCCESS;
r = EXIT_FAILURE;
log_error("Failed to open /etc/crypttab: %m");
}
- } else for (;;) {
+
+ goto next;
+ }
+
+ if (fstat(fileno(f), &st) < 0) {
+ log_error("Failed to stat /etc/crypttab: %m");
+ r = EXIT_FAILURE;
+ goto next;
+ }
+
+ /* If we readd support for specifying passphrases
+ * directly in crypttabe we should upgrade the warning
+ * below, though possibly only if a passphrase is
+ * specified directly. */
+ if (st.st_mode & 0005)
+ log_debug("/etc/crypttab is world-readable. This is usually not a good idea.");
+
+ for (;;) {
char line[LINE_MAX], *l;
- char _cleanup_free_ *name = NULL, *device = NULL, *password = NULL, *options = NULL;
+ _cleanup_free_ char *name = NULL, *device = NULL, *password = NULL, *options = NULL;
int k;
if (!fgets(line, sizeof(line), f))
continue;
}
+ if (arg_proc_cmdline_options) {
+ /*
+ If options are specified on the kernel commandline, let them override
+ the ones from crypttab.
+ */
+ STRV_FOREACH(i, arg_proc_cmdline_options) {
+ _cleanup_free_ char *proc_uuid = NULL, *proc_options = NULL;
+ const char *p = *i;
+
+ k = sscanf(p, "%m[0-9a-fA-F-]=%ms", &proc_uuid, &proc_options);
+ if (k == 2 && streq(proc_uuid, device + 5)) {
+ if (options)
+ free(options);
+ options = strdup(p);
+ if (!proc_options)
+ return log_oom();
+ }
+ }
+ }
+
if (arg_proc_cmdline_disks) {
/*
If luks UUIDs are specified on the kernel command line, use them as a filter
for /etc/crypttab and only generate units for those.
*/
STRV_FOREACH(i, arg_proc_cmdline_disks) {
- char _cleanup_free_ *proc_device = NULL, *proc_name = NULL;
+ _cleanup_free_ char *proc_device = NULL, *proc_name = NULL;
const char *p = *i;
if (startswith(p, "luks-"))
return log_oom();
if (streq(proc_device, device) || streq(proc_name, name)) {
- char **t;
-
if (create_disk(name, device, password, options) < 0)
r = EXIT_FAILURE;
- t = strv_append(arg_proc_cmdline_disks_done, p);
- if (!t)
+ if (strv_extend(&arg_proc_cmdline_disks_done, p) < 0)
return log_oom();
-
- strv_free(arg_proc_cmdline_disks_done);
- arg_proc_cmdline_disks_done = t;
}
}
} else {
}
}
+next:
STRV_FOREACH(i, arg_proc_cmdline_disks) {
/*
Generate units for those UUIDs, which were specified
on the kernel command line and not yet written.
*/
- char _cleanup_free_ *name = NULL, *device = NULL;
+ _cleanup_free_ char *name = NULL, *device = NULL, *options = NULL;
const char *p = *i;
if (startswith(p, "luks-"))
if (!name || !device)
return log_oom();
- if (create_disk(name, device, NULL, "timeout=0") < 0)
+ if (arg_proc_cmdline_options) {
+ /*
+ If options are specified on the kernel commandline, use them.
+ */
+ char **j;
+
+ STRV_FOREACH(j, arg_proc_cmdline_options) {
+ _cleanup_free_ char *proc_uuid = NULL, *proc_options = NULL;
+ const char *s = *j;
+ int k;
+
+ k = sscanf(s, "%m[0-9a-fA-F-]=%ms", &proc_uuid, &proc_options);
+ if (k == 2) {
+ if (streq(proc_uuid, device + 5)) {
+ if (options)
+ free(options);
+ options = strdup(proc_options);
+ if (!options)
+ return log_oom();
+ }
+ } else if (!options) {
+ /*
+ Fall back to options without a specified UUID
+ */
+ options = strdup(s);
+ if (!options)
+ return log_oom();
+ }
+ }
+ }
+
+ if (!options) {
+ options = strdup("timeout=0");
+ if (!options)
+ return log_oom();
+ }
+
+ if (create_disk(name, device, arg_proc_cmdline_keyfile, options) < 0)
r = EXIT_FAILURE;
}
~ianmdlvl / elogind.git / blobdiff