diff options
Diffstat (limited to 'crypto/asymmetric_keys/pkcs7_key_type.c')
| -rw-r--r-- | crypto/asymmetric_keys/pkcs7_key_type.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/crypto/asymmetric_keys/pkcs7_key_type.c b/crypto/asymmetric_keys/pkcs7_key_type.c index 3d13b042da73..e2d0edbbc71a 100644 --- a/crypto/asymmetric_keys/pkcs7_key_type.c +++ b/crypto/asymmetric_keys/pkcs7_key_type.c @@ -14,16 +14,26 @@ #include <linux/err.h> #include <linux/module.h> #include <linux/key-type.h> +#include <keys/asymmetric-type.h> #include <crypto/pkcs7.h> #include <keys/user-type.h> #include <keys/system_keyring.h> #include "pkcs7_parser.h" +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("PKCS#7 testing key type"); + +static unsigned pkcs7_usage; +module_param_named(usage, pkcs7_usage, uint, S_IWUSR | S_IRUGO); +MODULE_PARM_DESC(pkcs7_usage, + "Usage to specify when verifying the PKCS#7 message"); + /* * Preparse a PKCS#7 wrapped and validated data blob. */ static int pkcs7_preparse(struct key_preparsed_payload *prep) { + enum key_being_used_for usage = pkcs7_usage; struct pkcs7_message *pkcs7; const void *data, *saved_prep_data; size_t datalen, saved_prep_datalen; @@ -32,6 +42,11 @@ static int pkcs7_preparse(struct key_preparsed_payload *prep) kenter(""); + if (usage >= NR__KEY_BEING_USED_FOR) { + pr_err("Invalid usage type %d\n", usage); + return -EINVAL; + } + saved_prep_data = prep->data; saved_prep_datalen = prep->datalen; pkcs7 = pkcs7_parse_message(saved_prep_data, saved_prep_datalen); @@ -40,7 +55,7 @@ static int pkcs7_preparse(struct key_preparsed_payload *prep) goto error; } - ret = pkcs7_verify(pkcs7); + ret = pkcs7_verify(pkcs7, usage); if (ret < 0) goto error_free; |