34ef7bd382
This reverts commit 217091dd7a, which
caused the following build error:
security/integrity/digsig.c:70:5: error: redefinition of ‘integrity_init_keyring’
security/integrity/integrity.h:149:12: note: previous definition of ‘integrity_init_keyring’ w
security/integrity/integrity.h:149:12: warning: ‘integrity_init_keyring’ defined but not used
reported by Krzysztof Kolasa. Mimi says:
"I made the classic mistake of requesting this patch to be upstreamed
at the last second, rather than waiting until the next open window.
At this point, the best course would probably be to revert the two
commits and fix them for the next open window"
Reported-by: Krzysztof Kolasa <kkolasa@winsoft.pl>
Acked-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
59 lines
1.3 KiB
C
59 lines
1.3 KiB
C
/*
|
|
* Copyright (C) 2011 Intel Corporation
|
|
*
|
|
* Author:
|
|
* Dmitry Kasatkin <dmitry.kasatkin@intel.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, version 2 of the License.
|
|
*
|
|
*/
|
|
|
|
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
|
|
|
|
#include <linux/err.h>
|
|
#include <linux/rbtree.h>
|
|
#include <linux/key-type.h>
|
|
#include <linux/digsig.h>
|
|
|
|
#include "integrity.h"
|
|
|
|
static struct key *keyring[INTEGRITY_KEYRING_MAX];
|
|
|
|
static const char *keyring_name[INTEGRITY_KEYRING_MAX] = {
|
|
"_evm",
|
|
"_module",
|
|
"_ima",
|
|
};
|
|
|
|
int integrity_digsig_verify(const unsigned int id, const char *sig, int siglen,
|
|
const char *digest, int digestlen)
|
|
{
|
|
if (id >= INTEGRITY_KEYRING_MAX)
|
|
return -EINVAL;
|
|
|
|
if (!keyring[id]) {
|
|
keyring[id] =
|
|
request_key(&key_type_keyring, keyring_name[id], NULL);
|
|
if (IS_ERR(keyring[id])) {
|
|
int err = PTR_ERR(keyring[id]);
|
|
pr_err("no %s keyring: %d\n", keyring_name[id], err);
|
|
keyring[id] = NULL;
|
|
return err;
|
|
}
|
|
}
|
|
|
|
switch (sig[1]) {
|
|
case 1:
|
|
/* v1 API expect signature without xattr type */
|
|
return digsig_verify(keyring[id], sig + 1, siglen - 1,
|
|
digest, digestlen);
|
|
case 2:
|
|
return asymmetric_verify(keyring[id], sig, siglen,
|
|
digest, digestlen);
|
|
}
|
|
|
|
return -EOPNOTSUPP;
|
|
}
|