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cryptsetup: lock ourselves into memory as long as we deal with passwords
author
Lennart Poettering
<lennart@poettering.net>
Tue, 16 Nov 2010 02:23:52 +0000
(
03:23
+0100)
committer
Lennart Poettering
<lennart@poettering.net>
Tue, 16 Nov 2010 02:23:52 +0000
(
03:23
+0100)
src/cryptsetup.c
patch
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diff --git
a/src/cryptsetup.c
b/src/cryptsetup.c
index c007b87c7ab0c0c67174c54dd728c79ae01763df..c103aa9e03e329735b7e702f3802276d8dbb3e9c 100644
(file)
--- a/
src/cryptsetup.c
+++ b/
src/cryptsetup.c
@@
-21,6
+21,7
@@
#include <string.h>
#include <errno.h>
+#include <sys/mman.h>
#include <libcryptsetup.h>
@@
-181,6
+182,9
@@
int main(int argc, char *argv[]) {
if (argc >= 6 && argv[5][0] && !streq(argv[5], "-"))
parse_options(argv[5]);
+ /* A delicious drop of snake oil */
+ mlockall(MCL_FUTURE);
+
if ((k = crypt_init(&cd, argv[3]))) {
log_error("crypt_init() failed: %s", strerror(-k));
goto finish;