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KEYS: Merge the type-specific data with the payload data

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Merge the type-specific data with the payload data into one four-word chunk
as it seems pointless to keep them separate.

Use user_key_payload() for accessing the payloads of overloaded
user-defined keys.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: linux-cifs@vger.kernel.org
cc: ecryptfs@vger.kernel.org
cc: linux-ext4@vger.kernel.org
cc: linux-f2fs-devel@lists.sourceforge.net
cc: linux-nfs@vger.kernel.org
cc: ceph-devel@vger.kernel.org
cc: linux-ima-devel@lists.sourceforge.net
This commit is contained in:
David Howells
2015-10-21 14:04:48 +01:00
parent 4adc605edc
commit 146aa8b145
49 changed files with 286 additions and 230 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
crypto/asymmetric_keys/asymmetric_keys.h
View File

@@ -14,8 +14,3 @@ extern struct asymmetric_key_id *asymmetric_key_hex_to_key_id(const char *id);
extern int __asymmetric_key_hex_to_key_id(const char *id,
struct asymmetric_key_id *match_id,
size_t hexlen);
static inline
const struct asymmetric_key_ids *asymmetric_key_ids(const struct key *key)
{
return key->type_data.p[1];
}

46
crypto/asymmetric_keys/asymmetric_type.c
View File

@@ -307,25 +307,34 @@ static int asymmetric_key_preparse(struct key_preparsed_payload *prep)
}
/*
* Clean up the preparse data
* Clean up the key ID list
*/
static void asymmetric_key_free_preparse(struct key_preparsed_payload *prep)
static void asymmetric_key_free_kids(struct asymmetric_key_ids *kids)
{
struct asymmetric_key_subtype *subtype = prep->type_data[0];
struct asymmetric_key_ids *kids = prep->type_data[1];
int i;
pr_devel("==>%s()\n", __func__);
if (subtype) {
subtype->destroy(prep->payload[0]);
module_put(subtype->owner);
}
if (kids) {
for (i = 0; i < ARRAY_SIZE(kids->id); i++)
kfree(kids->id[i]);
kfree(kids);
}
}
/*
* Clean up the preparse data
*/
static void asymmetric_key_free_preparse(struct key_preparsed_payload *prep)
{
struct asymmetric_key_subtype *subtype = prep->payload.data[asym_subtype];
struct asymmetric_key_ids *kids = prep->payload.data[asym_key_ids];
pr_devel("==>%s()\n", __func__);
if (subtype) {
subtype->destroy(prep->payload.data[asym_crypto]);
module_put(subtype->owner);
}
asymmetric_key_free_kids(kids);
kfree(prep->description);
}
@@ -335,20 +344,19 @@ static void asymmetric_key_free_preparse(struct key_preparsed_payload *prep)
static void asymmetric_key_destroy(struct key *key)
{
struct asymmetric_key_subtype *subtype = asymmetric_key_subtype(key);
struct asymmetric_key_ids *kids = key->type_data.p[1];
struct asymmetric_key_ids *kids = key->payload.data[asym_key_ids];
void *data = key->payload.data[asym_crypto];
key->payload.data[asym_crypto] = NULL;
key->payload.data[asym_subtype] = NULL;
key->payload.data[asym_key_ids] = NULL;
if (subtype) {
subtype->destroy(key->payload.data);
subtype->destroy(data);
module_put(subtype->owner);
key->type_data.p[0] = NULL;
}
if (kids) {
kfree(kids->id[0]);
kfree(kids->id[1]);
kfree(kids);
key->type_data.p[1] = NULL;
}
asymmetric_key_free_kids(kids);
}
struct key_type key_type_asymmetric = {

4
crypto/asymmetric_keys/public_key.c
View File

@@ -49,7 +49,7 @@ EXPORT_SYMBOL_GPL(pkey_id_type_name);
static void public_key_describe(const struct key *asymmetric_key,
struct seq_file *m)
{
struct public_key *key = asymmetric_key->payload.data;
struct public_key *key = asymmetric_key->payload.data[asym_crypto];
if (key)
seq_printf(m, "%s.%s",
@@ -112,7 +112,7 @@ EXPORT_SYMBOL_GPL(public_key_verify_signature);
static int public_key_verify_signature_2(const struct key *key,
const struct public_key_signature *sig)
{
const struct public_key *pk = key->payload.data;
const struct public_key *pk = key->payload.data[asym_crypto];
return public_key_verify_signature(pk, sig);
}

2
crypto/asymmetric_keys/signature.c
View File

@@ -37,7 +37,7 @@ int verify_signature(const struct key *key,
return -EINVAL;
subtype = asymmetric_key_subtype(key);
if (!subtype ||
!key->payload.data)
!key->payload.data[0])
return -EINVAL;
if (!subtype->verify_signature)
return -ENOTSUPP;

1
crypto/asymmetric_keys/x509_parser.h
View File

@@ -11,6 +11,7 @@
#include <linux/time.h>
#include <crypto/public_key.h>
#include <keys/asymmetric-type.h>
struct x509_certificate {
struct x509_certificate *next;

9
crypto/asymmetric_keys/x509_public_key.c
View File

@@ -266,7 +266,8 @@ static int x509_validate_trust(struct x509_certificate *cert,
if (!IS_ERR(key)) {
if (!use_builtin_keys
|| test_bit(KEY_FLAG_BUILTIN, &key->flags))
ret = x509_check_signature(key->payload.data, cert);
ret = x509_check_signature(key->payload.data[asym_crypto],
cert);
key_put(key);
}
return ret;
@@ -352,9 +353,9 @@ static int x509_key_preparse(struct key_preparsed_payload *prep)
/* We're pinning the module by being linked against it */
__module_get(public_key_subtype.owner);
prep->type_data[0] = &public_key_subtype;
prep->type_data[1] = kids;
prep->payload[0] = cert->pub;
prep->payload.data[asym_subtype] = &public_key_subtype;
prep->payload.data[asym_key_ids] = kids;
prep->payload.data[asym_crypto] = cert->pub;
prep->description = desc;
prep->quotalen = 100;