-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
+/* SPDX-License-Identifier: LGPL-2.1+ */
/***
This file is part of systemd.
const char *password,
const char *options) {
- _cleanup_free_ char *p = NULL, *n = NULL, *d = NULL, *u = NULL, *to = NULL, *e = NULL,
+ _cleanup_free_ char *p = NULL, *n = NULL, *d = NULL, *u = NULL, *e = NULL,
*filtered = NULL;
_cleanup_fclose_ FILE *f = NULL;
- bool noauto, nofail, tmp, swap;
- char *from;
+ const char *dmname;
+ bool noauto, nofail, tmp, swap, netdev;
int r;
assert(name);
nofail = fstab_test_yes_no_option(options, "nofail\0" "fail\0");
tmp = fstab_test_option(options, "tmp\0");
swap = fstab_test_option(options, "swap\0");
+ netdev = fstab_test_option(options, "_netdev\0");
if (tmp && swap) {
log_error("Device '%s' cannot be both 'tmp' and 'swap'. Ignoring.", name);
if (r < 0)
return log_error_errno(r, "Failed to generate unit name: %m");
- p = strjoin(arg_dest, "/", n, NULL);
+ p = strjoin(arg_dest, "/", n);
if (!p)
return log_oom();
if (!f)
return log_error_errno(errno, "Failed to create unit file %s: %m", p);
- fputs(
+ fprintf(f,
"# Automatically generated by systemd-cryptsetup-generator\n\n"
"[Unit]\n"
- "Description=Cryptography Setup for %I\n"
+ "Description=Cryptography Setup for %%I\n"
"Documentation=man:crypttab(5) man:systemd-cryptsetup-generator(8) man:systemd-cryptsetup@.service(8)\n"
"SourcePath=/etc/crypttab\n"
"DefaultDependencies=no\n"
"Conflicts=umount.target\n"
- "BindsTo=dev-mapper-%i.device\n"
"IgnoreOnIsolate=true\n"
- "After=cryptsetup-pre.target\n",
- f);
+ "After=%s\n",
+ netdev ? "remote-fs-pre.target" : "cryptsetup-pre.target");
if (!nofail)
fprintf(f,
- "Before=cryptsetup.target\n");
+ "Before=%s\n",
+ netdev ? "remote-cryptsetup.target" : "cryptsetup.target");
if (password) {
if (STR_IN_SET(password, "/dev/urandom", "/dev/random", "/dev/hw_random"))
- fputs("After=systemd-random-seed.service\n", f);
- else if (!streq(password, "-") && !streq(password, "none")) {
+ fputs_unlocked("After=systemd-random-seed.service\n", f);
+ else if (!STR_IN_SET(password, "-", "none")) {
_cleanup_free_ char *uu;
uu = fstab_node_to_udev_node(password);
if (!path_equal(uu, "/dev/null")) {
- if (is_device_path(uu)) {
+ if (path_startswith(uu, "/dev/")) {
_cleanup_free_ char *dd = NULL;
r = unit_name_from_path(uu, ".device", &dd);
}
}
- if (is_device_path(u))
+ if (path_startswith(u, "/dev/")) {
fprintf(f,
"BindsTo=%s\n"
"After=%s\n"
"Before=umount.target\n",
d, d);
- else
+
+ if (swap)
+ fputs_unlocked("Before=dev-mapper-%i.swap\n",
+ f);
+ } else
fprintf(f,
"RequiresMountsFor=%s\n",
u);
"Type=oneshot\n"
"RemainAfterExit=yes\n"
"TimeoutSec=0\n" /* the binary handles timeouts anyway */
+ "KeyringMode=shared\n" /* make sure we can share cached keys among instances */
"ExecStart=" SYSTEMD_CRYPTSETUP_PATH " attach '%s' '%s' '%s' '%s'\n"
"ExecStop=" SYSTEMD_CRYPTSETUP_PATH " detach '%s'\n",
name, u, strempty(password), strempty(filtered),
if (r < 0)
return log_error_errno(r, "Failed to write file %s: %m", p);
- from = strjoina("../", n);
-
if (!noauto) {
+ r = generator_add_symlink(arg_dest, d, "wants", n);
+ if (r < 0)
+ return r;
- to = strjoin(arg_dest, "/", d, ".wants/", n, NULL);
- if (!to)
- return log_oom();
-
- mkdir_parents_label(to, 0755);
- if (symlink(from, to) < 0)
- return log_error_errno(errno, "Failed to create symlink %s: %m", to);
-
- free(to);
- if (!nofail)
- to = strjoin(arg_dest, "/cryptsetup.target.requires/", n, NULL);
- else
- to = strjoin(arg_dest, "/cryptsetup.target.wants/", n, NULL);
- if (!to)
- return log_oom();
-
- mkdir_parents_label(to, 0755);
- if (symlink(from, to) < 0)
- return log_error_errno(errno, "Failed to create symlink %s: %m", to);
+ r = generator_add_symlink(arg_dest,
+ netdev ? "remote-cryptsetup.target" : "cryptsetup.target",
+ nofail ? "wants" : "requires", n);
+ if (r < 0)
+ return r;
}
- free(to);
- to = strjoin(arg_dest, "/dev-mapper-", e, ".device.requires/", n, NULL);
- if (!to)
- return log_oom();
-
- mkdir_parents_label(to, 0755);
- if (symlink(from, to) < 0)
- return log_error_errno(errno, "Failed to create symlink %s: %m", to);
+ dmname = strjoina("dev-mapper-", e, ".device");
+ r = generator_add_symlink(arg_dest, dmname, "requires", n);
+ if (r < 0)
+ return r;
if (!noauto && !nofail) {
- _cleanup_free_ char *dmname;
- dmname = strjoin("dev-mapper-", e, ".device", NULL);
- if (!dmname)
- return log_oom();
-
r = write_drop_in(arg_dest, dmname, 90, "device-timeout",
"# Automatically generated by systemd-cryptsetup-generator \n\n"
"[Unit]\nJobTimeoutSec=0");
d->keyfile = d->options = d->name = NULL;
d->uuid = strdup(uuid);
- if (!d->uuid) {
- free(d);
- return NULL;
- }
+ if (!d->uuid)
+ return mfree(d);
r = hashmap_put(arg_disks, d->uuid, d);
if (r < 0) {
free(d->uuid);
- free(d);
- return NULL;
+ return mfree(d);
}
}
return d;
}
-static int parse_proc_cmdline_item(const char *key, const char *value) {
- int r;
- crypto_device *d;
+static int parse_proc_cmdline_item(const char *key, const char *value, void *data) {
_cleanup_free_ char *uuid = NULL, *uuid_value = NULL;
+ crypto_device *d;
+ int r;
- if (STR_IN_SET(key, "luks", "rd.luks") && value) {
+ if (streq(key, "luks")) {
- r = parse_boolean(value);
+ r = value ? parse_boolean(value) : 1;
if (r < 0)
- log_warning("Failed to parse luks switch %s. Ignoring.", value);
+ log_warning("Failed to parse luks= kernel command line switch %s. Ignoring.", value);
else
arg_enabled = r;
- } else if (STR_IN_SET(key, "luks.crypttab", "rd.luks.crypttab") && value) {
+ } else if (streq(key, "luks.crypttab")) {
- r = parse_boolean(value);
+ r = value ? parse_boolean(value) : 1;
if (r < 0)
- log_warning("Failed to parse luks crypttab switch %s. Ignoring.", value);
+ log_warning("Failed to parse luks.crypttab= kernel command line switch %s. Ignoring.", value);
else
arg_read_crypttab = r;
- } else if (STR_IN_SET(key, "luks.uuid", "rd.luks.uuid") && value) {
+ } else if (streq(key, "luks.uuid")) {
+
+ if (proc_cmdline_value_missing(key, value))
+ return 0;
d = get_crypto_device(startswith(value, "luks-") ? value+5 : value);
if (!d)
d->create = arg_whitelist = true;
- } else if (STR_IN_SET(key, "luks.options", "rd.luks.options") && value) {
+ } else if (streq(key, "luks.options")) {
+
+ if (proc_cmdline_value_missing(key, value))
+ return 0;
r = sscanf(value, "%m[0-9a-fA-F-]=%ms", &uuid, &uuid_value);
if (r == 2) {
if (!d)
return log_oom();
- free(d->options);
- d->options = uuid_value;
- uuid_value = NULL;
+ free_and_replace(d->options, uuid_value);
} else if (free_and_strdup(&arg_default_options, value) < 0)
return log_oom();
- } else if (STR_IN_SET(key, "luks.key", "rd.luks.key") && value) {
+ } else if (streq(key, "luks.key")) {
+
+ if (proc_cmdline_value_missing(key, value))
+ return 0;
r = sscanf(value, "%m[0-9a-fA-F-]=%ms", &uuid, &uuid_value);
if (r == 2) {
if (!d)
return log_oom();
- free(d->keyfile);
- d->keyfile = uuid_value;
- uuid_value = NULL;
+ free_and_replace(d->keyfile, uuid_value);
} else if (free_and_strdup(&arg_default_keyfile, value) < 0)
return log_oom();
- } else if (STR_IN_SET(key, "luks.name", "rd.luks.name") && value) {
+ } else if (streq(key, "luks.name")) {
+
+ if (proc_cmdline_value_missing(key, value))
+ return 0;
r = sscanf(value, "%m[0-9a-fA-F-]=%ms", &uuid, &uuid_value);
if (r == 2) {
uuid_value = NULL;
} else
log_warning("Failed to parse luks name switch %s. Ignoring.", value);
-
}
return 0;
crypttab_line++;
l = strstrip(line);
- if (*l == '#' || *l == 0)
+ if (IN_SET(*l, 0, '#'))
continue;
k = sscanf(l, "%ms %ms %ms %ms", &name, &device, &keyfile, &options);
}
int main(int argc, char *argv[]) {
- int r = EXIT_FAILURE;
+ int r;
if (argc > 1 && argc != 4) {
log_error("This program takes three or no arguments.");
umask(0022);
arg_disks = hashmap_new(&string_hash_ops);
- if (!arg_disks)
- goto cleanup;
+ if (!arg_disks) {
+ r = log_oom();
+ goto finish;
+ }
- r = parse_proc_cmdline(parse_proc_cmdline_item);
+ r = proc_cmdline_parse(parse_proc_cmdline_item, NULL, PROC_CMDLINE_STRIP_RD_PREFIX);
if (r < 0) {
- log_warning_errno(r, "Failed to parse kernel command line, ignoring: %m");
- r = EXIT_FAILURE;
+ log_warning_errno(r, "Failed to parse kernel command line: %m");
+ goto finish;
}
if (!arg_enabled) {
- r = EXIT_SUCCESS;
- goto cleanup;
+ r = 0;
+ goto finish;
}
- if (add_crypttab_devices() < 0)
- goto cleanup;
+ r = add_crypttab_devices();
+ if (r < 0)
+ goto finish;
- if (add_proc_cmdline_devices() < 0)
- goto cleanup;
+ r = add_proc_cmdline_devices();
+ if (r < 0)
+ goto finish;
- r = EXIT_SUCCESS;
+ r = 0;
-cleanup:
+finish:
free_arg_disks();
free(arg_default_options);
free(arg_default_keyfile);
- return r;
+ return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}
projects / thirdparty / systemd.git / blobdiff