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From afcf3919f5db85a00352a9937c9a5cb9c7b30269 Mon Sep 17 00:00:00 2001
From: Michal Sekletar <msekleta@redhat.com>
Date: Tue, 4 Sep 2018 20:03:34 +0200
Subject: [PATCH] cryptsetup-generator: allow whitespace characters in keydev
specification
For example, <luks.uuid>=/keyfile:LABEL="KEYFILE FS" previously wouldn't
work, because we truncated label at the first whitespace character,
i.e. LABEL="KEYFILE".
Related: #1619743
---
src/cryptsetup/cryptsetup-generator.c | 21 +++++++++++++++------
1 file changed, 15 insertions(+), 6 deletions(-)
diff --git a/src/cryptsetup/cryptsetup-generator.c b/src/cryptsetup/cryptsetup-generator.c
index a9598180c6..7b90d26156 100644
--- a/src/cryptsetup/cryptsetup-generator.c
+++ b/src/cryptsetup/cryptsetup-generator.c
@@ -421,27 +421,36 @@ static int parse_proc_cmdline_item(const char *key, const char *value) {
return log_oom();
} else if (STR_IN_SET(key, "luks.key", "rd.luks.key") && value) {
+ int n;
- r = sscanf(value, "%m[0-9a-fA-F-]=%ms", &uuid, &uuid_value);
- if (r == 2) {
+ r = sscanf(value, "%m[0-9a-fA-F-]=%n", &uuid, &n);
+ if (r == 1) {
char *c;
+ const char *keyspec;
_cleanup_free_ char *keyfile = NULL, *keydev = NULL;
d = get_crypto_device(uuid);
if (!d)
return log_oom();
- c = strrchr(uuid_value, ':');
+ keyspec = value + n;
+
+ c = strrchr(keyspec, ':');
if (!c) {
+ /* No keydev specified */
+ keyfile = strdup(keyspec);
+ if (!keyfile)
+ return log_oom();
+
free(d->keyfile);
- d->keyfile = uuid_value;
- uuid_value = NULL;
+ d->keyfile = keyfile;
+ keyfile = NULL;
return 0;
}
*c = '\0';
- keyfile = strdup(uuid_value);
+ keyfile = strdup(keyspec);
keydev = strdup(++c);
if (!keyfile || !keydev)