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