diff options
Diffstat (limited to 'drivers/s390/crypto/zcrypt_ccamisc.h')
| -rw-r--r-- | drivers/s390/crypto/zcrypt_ccamisc.h | 107 |
1 files changed, 106 insertions, 1 deletions
diff --git a/drivers/s390/crypto/zcrypt_ccamisc.h b/drivers/s390/crypto/zcrypt_ccamisc.h index e6f41e5baf18..e97cda0f61e0 100644 --- a/drivers/s390/crypto/zcrypt_ccamisc.h +++ b/drivers/s390/crypto/zcrypt_ccamisc.h @@ -22,11 +22,16 @@ /* For TOKTYPE_CCA_INTERNAL: */ #define TOKVER_CCA_AES 0x04 /* CCA AES key token */ +#define TOKVER_CCA_VLSC 0x05 /* var length sym cipher key token */ + +/* Max size of a cca variable length cipher key token */ +#define MAXCCAVLSCTOKENSIZE 725 /* header part of a CCA key token */ struct keytoken_header { u8 type; /* one of the TOKTYPE values */ - u8 res0[3]; + u8 res0[1]; + u16 len; /* vlsc token: total length in bytes */ u8 version; /* one of the TOKVER values */ u8 res1[3]; } __packed; @@ -47,6 +52,56 @@ struct secaeskeytoken { u8 tvv[4]; /* token validation value */ } __packed; +/* inside view of a variable length symmetric cipher AES key token */ +struct cipherkeytoken { + u8 type; /* 0x01 for internal key token */ + u8 res0[1]; + u16 len; /* total key token length in bytes */ + u8 version; /* should be 0x05 */ + u8 res1[3]; + u8 kms; /* key material state, 0x03 means wrapped with MK */ + u8 kvpt; /* key verification pattern type, should be 0x01 */ + u64 mkvp0; /* master key verification pattern, lo part */ + u64 mkvp1; /* master key verification pattern, hi part (unused) */ + u8 eskwm; /* encrypted section key wrapping method */ + u8 hashalg; /* hash algorithmus used for wrapping key */ + u8 plfver; /* pay load format version */ + u8 res2[1]; + u8 adsver; /* associated data section version */ + u8 res3[1]; + u16 adslen; /* associated data section length */ + u8 kllen; /* optional key label length */ + u8 ieaslen; /* optional extended associated data length */ + u8 uadlen; /* optional user definable associated data length */ + u8 res4[1]; + u16 wpllen; /* wrapped payload length in bits: */ + /* plfver 0x00 0x01 */ + /* AES-128 512 640 */ + /* AES-192 576 640 */ + /* AES-256 640 640 */ + u8 res5[1]; + u8 algtype; /* 0x02 for AES cipher */ + u16 keytype; /* 0x0001 for 'cipher' */ + u8 kufc; /* key usage field count */ + u16 kuf1; /* key usage field 1 */ + u16 kuf2; /* key usage field 2 */ + u8 kmfc; /* key management field count */ + u16 kmf1; /* key management field 1 */ + u16 kmf2; /* key management field 2 */ + u16 kmf3; /* key management field 3 */ + u8 vdata[0]; /* variable part data follows */ +} __packed; + +/* Some defines for the CCA AES cipherkeytoken kmf1 field */ +#define KMF1_XPRT_SYM 0x8000 +#define KMF1_XPRT_UASY 0x4000 +#define KMF1_XPRT_AASY 0x2000 +#define KMF1_XPRT_RAW 0x1000 +#define KMF1_XPRT_CPAC 0x0800 +#define KMF1_XPRT_DES 0x0080 +#define KMF1_XPRT_AES 0x0040 +#define KMF1_XPRT_RSA 0x0008 + /* * Simple check if the token is a valid CCA secure AES data key * token. If keybitsize is given, the bitsize of the key is @@ -56,6 +111,17 @@ int cca_check_secaeskeytoken(debug_info_t *dbg, int dbflvl, const u8 *token, int keybitsize); /* + * Simple check if the token is a valid CCA secure AES cipher key + * token. If keybitsize is given, the bitsize of the key is + * also checked. If checkcpacfexport is enabled, the key is also + * checked for the export flag to allow CPACF export. + * Returns 0 on success or errno value on failure. + */ +int cca_check_secaescipherkey(debug_info_t *dbg, int dbflvl, + const u8 *token, int keybitsize, + int checkcpacfexport); + +/* * Generate (random) CCA AES DATA secure key. */ int cca_genseckey(u16 cardnr, u16 domain, u32 keytype, u8 *seckey); @@ -75,6 +141,24 @@ int cca_sec2protkey(u16 cardnr, u16 domain, u32 *protkeytype); /* + * Generate (random) CCA AES CIPHER secure key. + */ +int cca_gencipherkey(u16 cardnr, u16 domain, u32 keybitsize, u32 keygenflags, + u8 *keybuf, size_t *keybufsize); + +/* + * Derive proteced key from CCA AES cipher secure key. + */ +int cca_cipher2protkey(u16 cardnr, u16 domain, const u8 *ckey, + u8 *protkey, u32 *protkeylen, u32 *protkeytype); + +/* + * Build CCA AES CIPHER secure key with a given clear key value. + */ +int cca_clr2cipherkey(u16 cardnr, u16 domain, u32 keybitsize, u32 keygenflags, + const u8 *clrkey, u8 *keybuf, size_t *keybufsize); + +/* * Query cryptographic facility from CCA adapter */ int cca_query_crypto_facility(u16 cardnr, u16 domain, @@ -90,6 +174,27 @@ int cca_query_crypto_facility(u16 cardnr, u16 domain, */ int cca_findcard(const u8 *key, u16 *pcardnr, u16 *pdomain, int verify); +/* + * Build a list of cca apqns meeting the following constrains: + * - apqn is online and is in fact a CCA apqn + * - if cardnr is not FFFF only apqns with this cardnr + * - if domain is not FFFF only apqns with this domainnr + * - if minhwtype > 0 only apqns with hwtype >= minhwtype + * - if cur_mkvp != 0 only apqns where cur_mkvp == mkvp + * - if old_mkvp != 0 only apqns where old_mkvp == mkvp + * - if verify is enabled and a cur_mkvp and/or old_mkvp + * value is given, then refetch the cca_info and make sure the current + * cur_mkvp or old_mkvp values of the apqn are used. + * The array of apqn entries is allocated with kmalloc and returned in *apqns; + * the number of apqns stored into the list is returned in *nr_apqns. One apqn + * entry is simple a 32 bit value with 16 bit cardnr and 16 bit domain nr and + * may be casted to struct pkey_apqn. The return value is either 0 for success + * or a negative errno value. If no apqn meeting the criterias is found, + * -ENODEV is returned. + */ +int cca_findcard2(u32 **apqns, u32 *nr_apqns, u16 cardnr, u16 domain, + int minhwtype, u64 cur_mkvp, u64 old_mkvp, int verify); + /* struct to hold info for each CCA queue */ struct cca_info { int hwtype; /* one of the defined AP_DEVICE_TYPE_* */ |