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-rw-r--r--security/keys/internal.h1
-rw-r--r--security/keys/keyring.c3
-rw-r--r--security/keys/request_key.c3
3 files changed, 5 insertions, 2 deletions
diff --git a/security/keys/internal.h b/security/keys/internal.h
index b8960c4..200e378 100644
--- a/security/keys/internal.h
+++ b/security/keys/internal.h
@@ -117,6 +117,7 @@ struct keyring_search_context {
#define KEYRING_SEARCH_NO_UPDATE_TIME 0x0004 /* Don't update times */
#define KEYRING_SEARCH_NO_CHECK_PERM 0x0008 /* Don't check permissions */
#define KEYRING_SEARCH_DETECT_TOO_DEEP 0x0010 /* Give an error on excessive depth */
+#define KEYRING_SEARCH_SKIP_EXPIRED 0x0020 /* Ignore expired keys (intention to replace) */
int (*iterator)(const void *object, void *iterator_data);
diff --git a/security/keys/keyring.c b/security/keys/keyring.c
index 238aa17..e72548b 100644
--- a/security/keys/keyring.c
+++ b/security/keys/keyring.c
@@ -546,7 +546,8 @@ static int keyring_search_iterator(const void *object, void *iterator_data)
}
if (key->expiry && ctx->now.tv_sec >= key->expiry) {
- ctx->result = ERR_PTR(-EKEYEXPIRED);
+ if (!(ctx->flags & KEYRING_SEARCH_SKIP_EXPIRED))
+ ctx->result = ERR_PTR(-EKEYEXPIRED);
kleave(" = %d [expire]", ctx->skipped_ret);
goto skipped;
}
diff --git a/security/keys/request_key.c b/security/keys/request_key.c
index 0bb23f9..0c7aea4 100644
--- a/security/keys/request_key.c
+++ b/security/keys/request_key.c
@@ -516,7 +516,8 @@ struct key *request_key_and_link(struct key_type *type,
.match_data.cmp = key_default_cmp,
.match_data.raw_data = description,
.match_data.lookup_type = KEYRING_SEARCH_LOOKUP_DIRECT,
- .flags = KEYRING_SEARCH_DO_STATE_CHECK,
+ .flags = (KEYRING_SEARCH_DO_STATE_CHECK |
+ KEYRING_SEARCH_SKIP_EXPIRED),
};
struct key *key;
key_ref_t key_ref;
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