mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-17 09:14:19 +08:00
a237283fc4
gcc-11 warns:
drivers/s390/crypto/zcrypt_ccamisc.c:298:38: warning: argument 4 of type u8[64] {aka unsigned char[64]} with mismatched bound [-Warray-parameter=]
298 | u32 keybitsize, u8 seckey[SECKEYBLOBSIZE])
| ~~~^~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/s390/crypto/zcrypt_ccamisc.c:24:
drivers/s390/crypto/zcrypt_ccamisc.h:162:63: note: previously declared as u8 * {aka unsigned char *}
162 | int cca_genseckey(u16 cardnr, u16 domain, u32 keybitsize, u8 *seckey);
| ~~~~^~~~~~
drivers/s390/crypto/zcrypt_ccamisc.c:441:41: warning: argument 5 of type u8[64] {aka unsigned char[64]} with mismatched bound [-Warray-parameter=]
441 | const u8 *clrkey, u8 seckey[SECKEYBLOBSIZE])
| ~~~^~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/s390/crypto/zcrypt_ccamisc.c:24:
drivers/s390/crypto/zcrypt_ccamisc.h:168:42: note: previously declared as u8 * {aka unsigned char *}
168 | const u8 *clrkey, u8 *seckey);
| ~~~~^~~~~~
Fix this by making the prototypes match the functions.
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Cc: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
271 lines
9.7 KiB
C
271 lines
9.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* Copyright IBM Corp. 2019
|
|
* Author(s): Harald Freudenberger <freude@linux.ibm.com>
|
|
* Ingo Franzki <ifranzki@linux.ibm.com>
|
|
*
|
|
* Collection of CCA misc functions used by zcrypt and pkey
|
|
*/
|
|
|
|
#ifndef _ZCRYPT_CCAMISC_H_
|
|
#define _ZCRYPT_CCAMISC_H_
|
|
|
|
#include <asm/zcrypt.h>
|
|
#include <asm/pkey.h>
|
|
|
|
/* Key token types */
|
|
#define TOKTYPE_NON_CCA 0x00 /* Non-CCA key token */
|
|
#define TOKTYPE_CCA_INTERNAL 0x01 /* CCA internal sym key token */
|
|
#define TOKTYPE_CCA_INTERNAL_PKA 0x1f /* CCA internal asym key token */
|
|
|
|
/* For TOKTYPE_NON_CCA: */
|
|
#define TOKVER_PROTECTED_KEY 0x01 /* Protected key token */
|
|
#define TOKVER_CLEAR_KEY 0x02 /* Clear key token */
|
|
|
|
/* 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[1];
|
|
u16 len; /* vlsc token: total length in bytes */
|
|
u8 version; /* one of the TOKVER values */
|
|
u8 res1[3];
|
|
} __packed;
|
|
|
|
/* inside view of a CCA secure key token (only type 0x01 version 0x04) */
|
|
struct secaeskeytoken {
|
|
u8 type; /* 0x01 for internal key token */
|
|
u8 res0[3];
|
|
u8 version; /* should be 0x04 */
|
|
u8 res1[1];
|
|
u8 flag; /* key flags */
|
|
u8 res2[1];
|
|
u64 mkvp; /* master key verification pattern */
|
|
u8 key[32]; /* key value (encrypted) */
|
|
u8 cv[8]; /* control vector */
|
|
u16 bitsize; /* key bit size */
|
|
u16 keysize; /* key byte size */
|
|
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[]; /* variable part data follows */
|
|
} __packed;
|
|
|
|
/* inside view of an CCA secure ECC private key */
|
|
struct eccprivkeytoken {
|
|
u8 type; /* 0x1f for internal asym key token */
|
|
u8 version; /* should be 0x00 */
|
|
u16 len; /* total key token length in bytes */
|
|
u8 res1[4];
|
|
u8 secid; /* 0x20 for ECC priv key section marker */
|
|
u8 secver; /* section version */
|
|
u16 seclen; /* section length */
|
|
u8 wtype; /* wrapping method, 0x00 clear, 0x01 AES */
|
|
u8 htype; /* hash method, 0x02 for SHA-256 */
|
|
u8 res2[2];
|
|
u8 kutc; /* key usage and translation control */
|
|
u8 ctype; /* curve type */
|
|
u8 kfs; /* key format and security */
|
|
u8 ksrc; /* key source */
|
|
u16 pbitlen; /* length of prime p in bits */
|
|
u16 ibmadlen; /* IBM associated data length in bytes */
|
|
u64 mkvp; /* master key verification pattern */
|
|
u8 opk[48]; /* encrypted object protection key data */
|
|
u16 adatalen; /* associated data length in bytes */
|
|
u16 fseclen; /* formated section length in bytes */
|
|
u8 more_data[]; /* more 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
|
|
* also checked. Returns 0 on success or errno value on failure.
|
|
*/
|
|
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);
|
|
|
|
/*
|
|
* Simple check if the token is a valid CCA secure ECC private
|
|
* key token. Returns 0 on success or errno value on failure.
|
|
*/
|
|
int cca_check_sececckeytoken(debug_info_t *dbg, int dbflvl,
|
|
const u8 *token, size_t keysize,
|
|
int checkcpacfexport);
|
|
|
|
/*
|
|
* Generate (random) CCA AES DATA secure key.
|
|
*/
|
|
int cca_genseckey(u16 cardnr, u16 domain, u32 keybitsize, u8 *seckey);
|
|
|
|
/*
|
|
* Generate CCA AES DATA secure key with given clear key value.
|
|
*/
|
|
int cca_clr2seckey(u16 cardnr, u16 domain, u32 keybitsize,
|
|
const u8 *clrkey, u8 *seckey);
|
|
|
|
/*
|
|
* Derive proteced key from an CCA AES DATA secure key.
|
|
*/
|
|
int cca_sec2protkey(u16 cardnr, u16 domain,
|
|
const u8 *seckey, u8 *protkey, u32 *protkeylen,
|
|
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);
|
|
|
|
/*
|
|
* Derive proteced key from CCA ECC secure private key.
|
|
*/
|
|
int cca_ecc2protkey(u16 cardnr, u16 domain, const u8 *key,
|
|
u8 *protkey, u32 *protkeylen, u32 *protkeytype);
|
|
|
|
/*
|
|
* Query cryptographic facility from CCA adapter
|
|
*/
|
|
int cca_query_crypto_facility(u16 cardnr, u16 domain,
|
|
const char *keyword,
|
|
u8 *rarray, size_t *rarraylen,
|
|
u8 *varray, size_t *varraylen);
|
|
|
|
/*
|
|
* Search for a matching crypto card based on the Master Key
|
|
* Verification Pattern provided inside a secure key.
|
|
* Works with CCA AES data and cipher keys.
|
|
* Returns < 0 on failure, 0 if CURRENT MKVP matches and
|
|
* 1 if OLD MKVP matches.
|
|
*/
|
|
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 mktype determines which set of master keys to use:
|
|
* 0 = AES_MK_SET - AES MK set, 1 = APKA MK_SET - APKA MK set
|
|
* 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, int mktype, u64 cur_mkvp, u64 old_mkvp,
|
|
int verify);
|
|
|
|
#define AES_MK_SET 0
|
|
#define APKA_MK_SET 1
|
|
|
|
/* struct to hold info for each CCA queue */
|
|
struct cca_info {
|
|
int hwtype; /* one of the defined AP_DEVICE_TYPE_* */
|
|
char new_aes_mk_state; /* '1' empty, '2' partially full, '3' full */
|
|
char cur_aes_mk_state; /* '1' invalid, '2' valid */
|
|
char old_aes_mk_state; /* '1' invalid, '2' valid */
|
|
char new_apka_mk_state; /* '1' empty, '2' partially full, '3' full */
|
|
char cur_apka_mk_state; /* '1' invalid, '2' valid */
|
|
char old_apka_mk_state; /* '1' invalid, '2' valid */
|
|
u64 new_aes_mkvp; /* truncated sha256 of new aes master key */
|
|
u64 cur_aes_mkvp; /* truncated sha256 of current aes master key */
|
|
u64 old_aes_mkvp; /* truncated sha256 of old aes master key */
|
|
u64 new_apka_mkvp; /* truncated sha256 of new apka master key */
|
|
u64 cur_apka_mkvp; /* truncated sha256 of current apka mk */
|
|
u64 old_apka_mkvp; /* truncated sha256 of old apka mk */
|
|
char serial[9]; /* serial number (8 ascii numbers + 0x00) */
|
|
};
|
|
|
|
/*
|
|
* Fetch cca information about an CCA queue.
|
|
*/
|
|
int cca_get_info(u16 card, u16 dom, struct cca_info *ci, int verify);
|
|
|
|
void zcrypt_ccamisc_exit(void);
|
|
|
|
#endif /* _ZCRYPT_CCAMISC_H_ */
|