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authorDavid Howells <dhowells@redhat.com>2014-09-16 17:36:06 +0100
committerDavid Howells <dhowells@redhat.com>2014-09-16 17:36:06 +0100
commitc06cfb08b88dfbe13be44a69ae2fdc3a7c902d81 (patch)
tree8bc0e3794ffb426b3cbb2c0d7c2dbbd4b28e3054 /net/dns_resolver
parentKEYS: Remove key_type::def_lookup_type (diff)
downloadlinux-dev-c06cfb08b88dfbe13be44a69ae2fdc3a7c902d81.tar.xz
linux-dev-c06cfb08b88dfbe13be44a69ae2fdc3a7c902d81.zip
KEYS: Remove key_type::match in favour of overriding default by match_preparse
A previous patch added a ->match_preparse() method to the key type. This is allowed to override the function called by the iteration algorithm. Therefore, we can just set a default that simply checks for an exact match of the key description with the original criterion data and allow match_preparse to override it as needed. The key_type::match op is then redundant and can be removed, as can the user_match() function. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Vivek Goyal <vgoyal@redhat.com>
Diffstat (limited to 'net/dns_resolver')
-rw-r--r--net/dns_resolver/dns_key.c17
1 files changed, 13 insertions, 4 deletions
diff --git a/net/dns_resolver/dns_key.c b/net/dns_resolver/dns_key.c
index 92df6e508ae7..a07b9ba7e0b7 100644
--- a/net/dns_resolver/dns_key.c
+++ b/net/dns_resolver/dns_key.c
@@ -176,9 +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_match(const struct key *key,
- const struct key_match_data *match_data)
+static int 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;
@@ -210,6 +209,16 @@ no_match:
}
/*
+ * Preparse the match criterion.
+ */
+static int dns_resolver_match_preparse(struct key_match_data *match_data)
+{
+ match_data->lookup_type = KEYRING_SEARCH_LOOKUP_ITERATE;
+ match_data->cmp = dns_resolver_cmp;
+ return 0;
+}
+
+/*
* Describe a DNS key
*/
static void dns_resolver_describe(const struct key *key, struct seq_file *m)
@@ -243,7 +252,7 @@ struct key_type key_type_dns_resolver = {
.preparse = dns_resolver_preparse,
.free_preparse = dns_resolver_free_preparse,
.instantiate = generic_key_instantiate,
- .match = dns_resolver_match,
+ .match_preparse = dns_resolver_match_preparse,
.revoke = user_revoke,
.destroy = user_destroy,
.describe = dns_resolver_describe,