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Message-ID: <20140908153757.28301.12320.stgit@warthog.procyon.org.uk>
Date: Mon, 08 Sep 2014 16:37:57 +0100
From: David Howells <dhowells@...hat.com>
To: rusty@...tcorp.com.au
Cc: keyrings@...ux-nfs.org, jwboyer@...hat.com,
linux-kernel@...r.kernel.org, dhowells@...hat.com,
linux-security-module@...r.kernel.org, pjones@...hat.com,
vgoyal@...hat.com
Subject: [PATCH 05/13] KEYS: Make the key matching functions return bool
Make the key matching functions pointed to by key_match_data::cmp return bool
rather than int.
Signed-off-by: David Howells <dhowells@...hat.com>
---
crypto/asymmetric_keys/asymmetric_type.c | 4 ++--
include/linux/key-type.h | 10 ++++++----
net/dns_resolver/dns_key.c | 4 ++--
security/keys/internal.h | 8 ++++----
security/keys/keyring.c | 4 ++--
security/keys/process_keys.c | 4 ++--
6 files changed, 18 insertions(+), 16 deletions(-)
diff --git a/crypto/asymmetric_keys/asymmetric_type.c b/crypto/asymmetric_keys/asymmetric_type.c
index 7c0498968975..7755f918e8d9 100644
--- a/crypto/asymmetric_keys/asymmetric_type.c
+++ b/crypto/asymmetric_keys/asymmetric_type.c
@@ -59,8 +59,8 @@ EXPORT_SYMBOL_GPL(asymmetric_keyid_match);
* "id:<id>" - request a key matching the ID
* "<subtype>:<id>" - request a key of a subtype
*/
-static int asymmetric_key_cmp(const struct key *key,
- const struct key_match_data *match_data)
+static bool asymmetric_key_cmp(const struct key *key,
+ const struct key_match_data *match_data)
{
const struct asymmetric_key_subtype *subtype = asymmetric_key_subtype(key);
const char *description = match_data->raw_data;
diff --git a/include/linux/key-type.h b/include/linux/key-type.h
index c14816bd3b44..ff9f1d394235 100644
--- a/include/linux/key-type.h
+++ b/include/linux/key-type.h
@@ -56,10 +56,12 @@ typedef int (*request_key_actor_t)(struct key_construction *key,
* Preparsed matching criterion.
*/
struct key_match_data {
- /* Comparison function, defaults to type->match, but can be replaced by
- * type->match_preparse(). */
- int (*cmp)(const struct key *key,
- const struct key_match_data *match_data);
+ /* Comparison function, defaults to exact description match, but can be
+ * overridden by type->match_preparse(). Should return true if a match
+ * is found and false if not.
+ */
+ bool (*cmp)(const struct key *key,
+ const struct key_match_data *match_data);
const void *raw_data; /* Raw match data */
void *preparsed; /* For ->match_preparse() to stash stuff */
diff --git a/net/dns_resolver/dns_key.c b/net/dns_resolver/dns_key.c
index a07b9ba7e0b7..31cd4fd75486 100644
--- a/net/dns_resolver/dns_key.c
+++ b/net/dns_resolver/dns_key.c
@@ -176,8 +176,8 @@ static void dns_resolver_free_preparse(struct key_preparsed_payload *prep)
* The domain name may be a simple name or an absolute domain name (which
* should end with a period). The domain name is case-independent.
*/
-static int dns_resolver_cmp(const struct key *key,
- const struct key_match_data *match_data)
+static bool dns_resolver_cmp(const struct key *key,
+ const struct key_match_data *match_data)
{
int slen, dlen, ret = 0;
const char *src = key->description, *dsp = match_data->raw_data;
diff --git a/security/keys/internal.h b/security/keys/internal.h
index 4ef315325b9d..7a1299af41c3 100644
--- a/security/keys/internal.h
+++ b/security/keys/internal.h
@@ -128,8 +128,8 @@ struct keyring_search_context {
struct timespec now;
};
-extern int key_default_cmp(const struct key *key,
- const struct key_match_data *match_data);
+extern bool key_default_cmp(const struct key *key,
+ const struct key_match_data *match_data);
extern key_ref_t keyring_search_aux(key_ref_t keyring_ref,
struct keyring_search_context *ctx);
@@ -151,8 +151,8 @@ extern struct key *request_key_and_link(struct key_type *type,
struct key *dest_keyring,
unsigned long flags);
-extern int lookup_user_key_possessed(const struct key *key,
- const struct key_match_data *match_data);
+extern bool lookup_user_key_possessed(const struct key *key,
+ const struct key_match_data *match_data);
extern key_ref_t lookup_user_key(key_serial_t id, unsigned long flags,
key_perm_t perm);
#define KEY_LOOKUP_CREATE 0x01
diff --git a/security/keys/keyring.c b/security/keys/keyring.c
index d8ce7db1db78..e43f0e8faa3e 100644
--- a/security/keys/keyring.c
+++ b/security/keys/keyring.c
@@ -513,8 +513,8 @@ EXPORT_SYMBOL(keyring_alloc);
/*
* By default, we keys found by getting an exact match on their descriptions.
*/
-int key_default_cmp(const struct key *key,
- const struct key_match_data *match_data)
+bool key_default_cmp(const struct key *key,
+ const struct key_match_data *match_data)
{
return strcmp(key->description, match_data->raw_data) == 0;
}
diff --git a/security/keys/process_keys.c b/security/keys/process_keys.c
index 08bd533d014f..bd536cb221e2 100644
--- a/security/keys/process_keys.c
+++ b/security/keys/process_keys.c
@@ -489,8 +489,8 @@ found:
/*
* See if the key we're looking at is the target key.
*/
-int lookup_user_key_possessed(const struct key *key,
- const struct key_match_data *match_data)
+bool lookup_user_key_possessed(const struct key *key,
+ const struct key_match_data *match_data)
{
return key == match_data->raw_data;
}
--
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