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cryptsetup-generator: rename split_keyspec to split_locationspec

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To be used later not only for splitting key specifications
This commit is contained in:
Ondrej Kozina 2020-09-01 10:51:33 +02:00
parent c3ee5b34f5
commit fc6f1ad121
1 changed files with 25 additions and 25 deletions
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50
src/cryptsetup/cryptsetup-generator.c
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@ -48,53 +48,53 @@ STATIC_DESTRUCTOR_REGISTER(arg_disks, hashmap_freep);
STATIC_DESTRUCTOR_REGISTER(arg_default_options, freep);
STATIC_DESTRUCTOR_REGISTER(arg_default_keyfile, freep);
static int split_keyspec(const char *keyspec, char **ret_keyfile, char **ret_keydev) {
_cleanup_free_ char *keyfile = NULL, *keydev = NULL;
static int split_locationspec(const char *locationspec, char **ret_file, char **ret_device) {
_cleanup_free_ char *file = NULL, *device = NULL;
const char *c;
assert(ret_keyfile);
assert(ret_keydev);
assert(ret_file);
assert(ret_device);
if (!keyspec) {
*ret_keyfile = *ret_keydev = NULL;
if (!locationspec) {
*ret_file = *ret_device = NULL;
return 0;
}
c = strrchr(keyspec, ':');
c = strrchr(locationspec, ':');
if (c) {
/* The keydev part has to be either an absolute path to device node (/dev/something,
/* The device part has to be either an absolute path to device node (/dev/something,
* /dev/foo/something, or even possibly /dev/foo/something:part), or a fstab device
* specification starting with LABEL= or similar. The keyfile part has the same syntax.
* specification starting with LABEL= or similar. The file part has the same syntax.
*
* Let's try to guess if the second part looks like a keydev specification, or just part of a
* Let's try to guess if the second part looks like a device specification, or just part of a
* filename with a colon. fstab_node_to_udev_node() will convert the fstab device syntax to
* an absolute path. If we didn't get an absolute path, assume that it is just part of the
* first keyfile argument. */
* first file argument. */
keydev = fstab_node_to_udev_node(c + 1);
if (!keydev)
device = fstab_node_to_udev_node(c + 1);
if (!device)
return log_oom();
if (path_is_absolute(keydev))
keyfile = strndup(keyspec, c-keyspec);
if (path_is_absolute(device))
file = strndup(locationspec, c-locationspec);
else {
log_debug("Keyspec argument contains a colon, but \"%s\" doesn't look like a device specification.\n"
log_debug("Location specification argument contains a colon, but \"%s\" doesn't look like a device specification.\n"
"Assuming that \"%s\" is a single device specification.",
c + 1, keyspec);
keydev = mfree(keydev);
c + 1, locationspec);
device = mfree(device);
c = NULL;
}
}
if (!c)
/* No keydev specified */
keyfile = strdup(keyspec);
/* No device specified */
file = strdup(locationspec);
if (!keyfile)
if (!file)
return log_oom();
*ret_keyfile = TAKE_PTR(keyfile);
*ret_keydev = TAKE_PTR(keydev);
*ret_file = TAKE_PTR(file);
*ret_device = TAKE_PTR(device);
return 0;
}
@ -611,7 +611,7 @@ static int parse_proc_cmdline_item(const char *key, const char *value, void *dat
return log_oom();
keyspec = value + n + 1;
r = split_keyspec(keyspec, &keyfile, &keydev);
r = split_locationspec(keyspec, &keyfile, &keydev);
if (r < 0)
return r;
@ -697,7 +697,7 @@ static int add_crypttab_devices(void) {
continue;
}
r = split_keyspec(keyspec, &keyfile, &keydev);
r = split_locationspec(keyspec, &keyfile, &keydev);
if (r < 0)
return r;