diff options
| -rw-r--r-- | crypto/asymmetric_keys/asymmetric_keys.h | 2 | ||||
| -rw-r--r-- | crypto/asymmetric_keys/asymmetric_type.c | 42 | ||||
| -rw-r--r-- | crypto/asymmetric_keys/pkcs7_trust.c | 19 | ||||
| -rw-r--r-- | crypto/asymmetric_keys/x509_public_key.c | 5 | ||||
| -rw-r--r-- | include/keys/asymmetric-type.h | 8 |
5 files changed, 37 insertions, 39 deletions
diff --git a/crypto/asymmetric_keys/asymmetric_keys.h b/crypto/asymmetric_keys/asymmetric_keys.h index 1d450b580245..ca8e9ac34ce6 100644 --- a/crypto/asymmetric_keys/asymmetric_keys.h +++ b/crypto/asymmetric_keys/asymmetric_keys.h @@ -9,6 +9,8 @@ * 2 of the Licence, or (at your option) any later version. */ +#include <keys/asymmetric-type.h> + 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, diff --git a/crypto/asymmetric_keys/asymmetric_type.c b/crypto/asymmetric_keys/asymmetric_type.c index c4d66cd82860..6600181d5d01 100644 --- a/crypto/asymmetric_keys/asymmetric_type.c +++ b/crypto/asymmetric_keys/asymmetric_type.c @@ -35,21 +35,20 @@ static LIST_HEAD(asymmetric_key_parsers); static DECLARE_RWSEM(asymmetric_key_parsers_sem); /** - * x509_request_asymmetric_key - Request a key by X.509 certificate params. + * find_asymmetric_key - Find a key by ID. * @keyring: The keys to search. - * @id: The issuer & serialNumber to look for or NULL. - * @skid: The subjectKeyIdentifier to look for or NULL. + * @id_0: The first ID to look for or NULL. + * @id_1: The second ID to look for or NULL. * @partial: Use partial match if true, exact if false. * * Find a key in the given keyring by identifier. The preferred identifier is - * the issuer + serialNumber and the fallback identifier is the - * subjectKeyIdentifier. If both are given, the lookup is by the former, but - * the latter must also match. + * the id_0 and the fallback identifier is the id_1. If both are given, the + * lookup is by the former, but the latter must also match. */ -struct key *x509_request_asymmetric_key(struct key *keyring, - const struct asymmetric_key_id *id, - const struct asymmetric_key_id *skid, - bool partial) +struct key *find_asymmetric_key(struct key *keyring, + const struct asymmetric_key_id *id_0, + const struct asymmetric_key_id *id_1, + bool partial) { struct key *key; key_ref_t ref; @@ -57,12 +56,12 @@ struct key *x509_request_asymmetric_key(struct key *keyring, char *req, *p; int len; - if (id) { - lookup = id->data; - len = id->len; + if (id_0) { + lookup = id_0->data; + len = id_0->len; } else { - lookup = skid->data; - len = skid->len; + lookup = id_1->data; + len = id_1->len; } /* Construct an identifier "id:<keyid>". */ @@ -102,14 +101,15 @@ struct key *x509_request_asymmetric_key(struct key *keyring, } key = key_ref_to_ptr(ref); - if (id && skid) { + if (id_0 && id_1) { const struct asymmetric_key_ids *kids = asymmetric_key_ids(key); - if (!kids->id[1]) { - pr_debug("issuer+serial match, but expected SKID missing\n"); + + if (!kids->id[0]) { + pr_debug("First ID matches, but second is missing\n"); goto reject; } - if (!asymmetric_key_id_same(skid, kids->id[1])) { - pr_debug("issuer+serial match, but SKID does not\n"); + if (!asymmetric_key_id_same(id_1, kids->id[1])) { + pr_debug("First ID matches, but second does not\n"); goto reject; } } @@ -121,7 +121,7 @@ reject: key_put(key); return ERR_PTR(-EKEYREJECTED); } -EXPORT_SYMBOL_GPL(x509_request_asymmetric_key); +EXPORT_SYMBOL_GPL(find_asymmetric_key); /** * asymmetric_key_generate_id: Construct an asymmetric key ID diff --git a/crypto/asymmetric_keys/pkcs7_trust.c b/crypto/asymmetric_keys/pkcs7_trust.c index 36e77cb07bd0..f6a009d88a33 100644 --- a/crypto/asymmetric_keys/pkcs7_trust.c +++ b/crypto/asymmetric_keys/pkcs7_trust.c @@ -51,9 +51,8 @@ static int pkcs7_validate_trust_one(struct pkcs7_message *pkcs7, /* Look to see if this certificate is present in the trusted * keys. */ - key = x509_request_asymmetric_key(trust_keyring, - x509->id, x509->skid, - false); + key = find_asymmetric_key(trust_keyring, + x509->id, x509->skid, false); if (!IS_ERR(key)) { /* One of the X.509 certificates in the PKCS#7 message * is apparently the same as one we already trust. @@ -84,10 +83,10 @@ static int pkcs7_validate_trust_one(struct pkcs7_message *pkcs7, * trusted keys. */ if (last && (last->sig->auth_ids[0] || last->sig->auth_ids[1])) { - key = x509_request_asymmetric_key(trust_keyring, - last->sig->auth_ids[0], - last->sig->auth_ids[1], - false); + key = find_asymmetric_key(trust_keyring, + last->sig->auth_ids[0], + last->sig->auth_ids[1], + false); if (!IS_ERR(key)) { x509 = last; pr_devel("sinfo %u: Root cert %u signer is key %x\n", @@ -101,10 +100,8 @@ static int pkcs7_validate_trust_one(struct pkcs7_message *pkcs7, /* As a last resort, see if we have a trusted public key that matches * the signed info directly. */ - key = x509_request_asymmetric_key(trust_keyring, - sinfo->sig->auth_ids[0], - NULL, - false); + key = find_asymmetric_key(trust_keyring, + sinfo->sig->auth_ids[0], NULL, false); if (!IS_ERR(key)) { pr_devel("sinfo %u: Direct signer is key %x\n", sinfo->index, key_serial(key)); diff --git a/crypto/asymmetric_keys/x509_public_key.c b/crypto/asymmetric_keys/x509_public_key.c index 2fb594175cef..9c8483ef1cfe 100644 --- a/crypto/asymmetric_keys/x509_public_key.c +++ b/crypto/asymmetric_keys/x509_public_key.c @@ -213,9 +213,8 @@ static int x509_validate_trust(struct x509_certificate *cert, if (cert->unsupported_sig) return -ENOPKG; - key = x509_request_asymmetric_key(trust_keyring, - sig->auth_ids[0], sig->auth_ids[1], - false); + key = find_asymmetric_key(trust_keyring, + sig->auth_ids[0], sig->auth_ids[1], false); if (IS_ERR(key)) return PTR_ERR(key); diff --git a/include/keys/asymmetric-type.h b/include/keys/asymmetric-type.h index 735db697c4d2..b38240716d41 100644 --- a/include/keys/asymmetric-type.h +++ b/include/keys/asymmetric-type.h @@ -76,10 +76,10 @@ const struct asymmetric_key_ids *asymmetric_key_ids(const struct key *key) return key->payload.data[asym_key_ids]; } -extern struct key *x509_request_asymmetric_key(struct key *keyring, - const struct asymmetric_key_id *id, - const struct asymmetric_key_id *skid, - bool partial); +extern struct key *find_asymmetric_key(struct key *keyring, + const struct asymmetric_key_id *id_0, + const struct asymmetric_key_id *id_1, + bool partial); /* * The payload is at the discretion of the subtype. |