^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0+
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Cryptographic API.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * s390 implementation of the DES Cipher Algorithm.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Copyright IBM Corp. 2003, 2011
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Author(s): Thomas Spatzier
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Jan Glauber (jan.glauber@de.ibm.com)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/cpufeature.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/crypto.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/fips.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/mutex.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <crypto/algapi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <crypto/internal/des.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <crypto/internal/skcipher.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <asm/cpacf.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #define DES3_KEY_SIZE (3 * DES_KEY_SIZE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) static u8 *ctrblk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) static DEFINE_MUTEX(ctrblk_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) static cpacf_mask_t km_functions, kmc_functions, kmctr_functions;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) struct s390_des_ctx {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) u8 iv[DES_BLOCK_SIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) u8 key[DES3_KEY_SIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) static int des_setkey(struct crypto_tfm *tfm, const u8 *key,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) unsigned int key_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) struct s390_des_ctx *ctx = crypto_tfm_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) err = crypto_des_verify_key(tfm, key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) memcpy(ctx->key, key, key_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) static int des_setkey_skcipher(struct crypto_skcipher *tfm, const u8 *key,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) unsigned int key_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) return des_setkey(crypto_skcipher_tfm(tfm), key, key_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) static void s390_des_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) struct s390_des_ctx *ctx = crypto_tfm_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) cpacf_km(CPACF_KM_DEA, ctx->key, out, in, DES_BLOCK_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) static void s390_des_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) struct s390_des_ctx *ctx = crypto_tfm_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) cpacf_km(CPACF_KM_DEA | CPACF_DECRYPT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) ctx->key, out, in, DES_BLOCK_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) static struct crypto_alg des_alg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) .cra_name = "des",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) .cra_driver_name = "des-s390",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) .cra_priority = 300,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) .cra_blocksize = DES_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) .cra_ctxsize = sizeof(struct s390_des_ctx),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) .cra_module = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) .cra_u = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) .cipher = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) .cia_min_keysize = DES_KEY_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) .cia_max_keysize = DES_KEY_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) .cia_setkey = des_setkey,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) .cia_encrypt = s390_des_encrypt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) .cia_decrypt = s390_des_decrypt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) static int ecb_desall_crypt(struct skcipher_request *req, unsigned long fc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) struct s390_des_ctx *ctx = crypto_skcipher_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) struct skcipher_walk walk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) unsigned int nbytes, n;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) ret = skcipher_walk_virt(&walk, req, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) while ((nbytes = walk.nbytes) != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) /* only use complete blocks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) n = nbytes & ~(DES_BLOCK_SIZE - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) cpacf_km(fc, ctx->key, walk.dst.virt.addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) walk.src.virt.addr, n);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) ret = skcipher_walk_done(&walk, nbytes - n);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) static int cbc_desall_crypt(struct skcipher_request *req, unsigned long fc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) struct s390_des_ctx *ctx = crypto_skcipher_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) struct skcipher_walk walk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) unsigned int nbytes, n;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) u8 iv[DES_BLOCK_SIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) u8 key[DES3_KEY_SIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) } param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) ret = skcipher_walk_virt(&walk, req, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) memcpy(param.iv, walk.iv, DES_BLOCK_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) memcpy(param.key, ctx->key, DES3_KEY_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) while ((nbytes = walk.nbytes) != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) /* only use complete blocks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) n = nbytes & ~(DES_BLOCK_SIZE - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) cpacf_kmc(fc, ¶m, walk.dst.virt.addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) walk.src.virt.addr, n);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) memcpy(walk.iv, param.iv, DES_BLOCK_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) ret = skcipher_walk_done(&walk, nbytes - n);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) static int ecb_des_encrypt(struct skcipher_request *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) return ecb_desall_crypt(req, CPACF_KM_DEA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) static int ecb_des_decrypt(struct skcipher_request *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) return ecb_desall_crypt(req, CPACF_KM_DEA | CPACF_DECRYPT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) static struct skcipher_alg ecb_des_alg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) .base.cra_name = "ecb(des)",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) .base.cra_driver_name = "ecb-des-s390",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) .base.cra_priority = 400, /* combo: des + ecb */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) .base.cra_blocksize = DES_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) .base.cra_ctxsize = sizeof(struct s390_des_ctx),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) .base.cra_module = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) .min_keysize = DES_KEY_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) .max_keysize = DES_KEY_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) .setkey = des_setkey_skcipher,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) .encrypt = ecb_des_encrypt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) .decrypt = ecb_des_decrypt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) static int cbc_des_encrypt(struct skcipher_request *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) return cbc_desall_crypt(req, CPACF_KMC_DEA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) static int cbc_des_decrypt(struct skcipher_request *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) return cbc_desall_crypt(req, CPACF_KMC_DEA | CPACF_DECRYPT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) static struct skcipher_alg cbc_des_alg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) .base.cra_name = "cbc(des)",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) .base.cra_driver_name = "cbc-des-s390",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) .base.cra_priority = 400, /* combo: des + cbc */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) .base.cra_blocksize = DES_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) .base.cra_ctxsize = sizeof(struct s390_des_ctx),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) .base.cra_module = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) .min_keysize = DES_KEY_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) .max_keysize = DES_KEY_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) .ivsize = DES_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) .setkey = des_setkey_skcipher,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) .encrypt = cbc_des_encrypt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) .decrypt = cbc_des_decrypt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) * RFC2451:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) * For DES-EDE3, there is no known need to reject weak or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) * complementation keys. Any weakness is obviated by the use of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) * multiple keys.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) * However, if the first two or last two independent 64-bit keys are
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) * equal (k1 == k2 or k2 == k3), then the DES3 operation is simply the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) * same as DES. Implementers MUST reject keys that exhibit this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) * property.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) * In fips mode additinally check for all 3 keys are unique.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) static int des3_setkey(struct crypto_tfm *tfm, const u8 *key,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) unsigned int key_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) struct s390_des_ctx *ctx = crypto_tfm_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) err = crypto_des3_ede_verify_key(tfm, key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) memcpy(ctx->key, key, key_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) static int des3_setkey_skcipher(struct crypto_skcipher *tfm, const u8 *key,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) unsigned int key_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) return des3_setkey(crypto_skcipher_tfm(tfm), key, key_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) static void des3_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) struct s390_des_ctx *ctx = crypto_tfm_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) cpacf_km(CPACF_KM_TDEA_192, ctx->key, dst, src, DES_BLOCK_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) static void des3_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) struct s390_des_ctx *ctx = crypto_tfm_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) cpacf_km(CPACF_KM_TDEA_192 | CPACF_DECRYPT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) ctx->key, dst, src, DES_BLOCK_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) static struct crypto_alg des3_alg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) .cra_name = "des3_ede",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) .cra_driver_name = "des3_ede-s390",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) .cra_priority = 300,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) .cra_blocksize = DES_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) .cra_ctxsize = sizeof(struct s390_des_ctx),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) .cra_module = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) .cra_u = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) .cipher = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) .cia_min_keysize = DES3_KEY_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) .cia_max_keysize = DES3_KEY_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) .cia_setkey = des3_setkey,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) .cia_encrypt = des3_encrypt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) .cia_decrypt = des3_decrypt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) static int ecb_des3_encrypt(struct skcipher_request *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) return ecb_desall_crypt(req, CPACF_KM_TDEA_192);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) static int ecb_des3_decrypt(struct skcipher_request *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) return ecb_desall_crypt(req, CPACF_KM_TDEA_192 | CPACF_DECRYPT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) static struct skcipher_alg ecb_des3_alg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) .base.cra_name = "ecb(des3_ede)",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) .base.cra_driver_name = "ecb-des3_ede-s390",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) .base.cra_priority = 400, /* combo: des3 + ecb */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) .base.cra_blocksize = DES_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) .base.cra_ctxsize = sizeof(struct s390_des_ctx),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) .base.cra_module = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) .min_keysize = DES3_KEY_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) .max_keysize = DES3_KEY_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) .setkey = des3_setkey_skcipher,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) .encrypt = ecb_des3_encrypt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) .decrypt = ecb_des3_decrypt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) static int cbc_des3_encrypt(struct skcipher_request *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) return cbc_desall_crypt(req, CPACF_KMC_TDEA_192);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) static int cbc_des3_decrypt(struct skcipher_request *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) return cbc_desall_crypt(req, CPACF_KMC_TDEA_192 | CPACF_DECRYPT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) static struct skcipher_alg cbc_des3_alg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) .base.cra_name = "cbc(des3_ede)",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) .base.cra_driver_name = "cbc-des3_ede-s390",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) .base.cra_priority = 400, /* combo: des3 + cbc */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) .base.cra_blocksize = DES_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) .base.cra_ctxsize = sizeof(struct s390_des_ctx),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) .base.cra_module = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) .min_keysize = DES3_KEY_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) .max_keysize = DES3_KEY_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) .ivsize = DES_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) .setkey = des3_setkey_skcipher,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) .encrypt = cbc_des3_encrypt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) .decrypt = cbc_des3_decrypt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) static unsigned int __ctrblk_init(u8 *ctrptr, u8 *iv, unsigned int nbytes)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) unsigned int i, n;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) /* align to block size, max. PAGE_SIZE */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) n = (nbytes > PAGE_SIZE) ? PAGE_SIZE : nbytes & ~(DES_BLOCK_SIZE - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) memcpy(ctrptr, iv, DES_BLOCK_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) for (i = (n / DES_BLOCK_SIZE) - 1; i > 0; i--) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) memcpy(ctrptr + DES_BLOCK_SIZE, ctrptr, DES_BLOCK_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) crypto_inc(ctrptr + DES_BLOCK_SIZE, DES_BLOCK_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) ctrptr += DES_BLOCK_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) return n;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) static int ctr_desall_crypt(struct skcipher_request *req, unsigned long fc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) struct s390_des_ctx *ctx = crypto_skcipher_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) u8 buf[DES_BLOCK_SIZE], *ctrptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) struct skcipher_walk walk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) unsigned int n, nbytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) int ret, locked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) locked = mutex_trylock(&ctrblk_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) ret = skcipher_walk_virt(&walk, req, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) while ((nbytes = walk.nbytes) >= DES_BLOCK_SIZE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) n = DES_BLOCK_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) if (nbytes >= 2*DES_BLOCK_SIZE && locked)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) n = __ctrblk_init(ctrblk, walk.iv, nbytes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) ctrptr = (n > DES_BLOCK_SIZE) ? ctrblk : walk.iv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) cpacf_kmctr(fc, ctx->key, walk.dst.virt.addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) walk.src.virt.addr, n, ctrptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) if (ctrptr == ctrblk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) memcpy(walk.iv, ctrptr + n - DES_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) DES_BLOCK_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) crypto_inc(walk.iv, DES_BLOCK_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) ret = skcipher_walk_done(&walk, nbytes - n);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) if (locked)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) mutex_unlock(&ctrblk_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) /* final block may be < DES_BLOCK_SIZE, copy only nbytes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) if (nbytes) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) cpacf_kmctr(fc, ctx->key, buf, walk.src.virt.addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) DES_BLOCK_SIZE, walk.iv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) memcpy(walk.dst.virt.addr, buf, nbytes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) crypto_inc(walk.iv, DES_BLOCK_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) ret = skcipher_walk_done(&walk, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) static int ctr_des_crypt(struct skcipher_request *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) return ctr_desall_crypt(req, CPACF_KMCTR_DEA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) static struct skcipher_alg ctr_des_alg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) .base.cra_name = "ctr(des)",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) .base.cra_driver_name = "ctr-des-s390",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) .base.cra_priority = 400, /* combo: des + ctr */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) .base.cra_blocksize = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) .base.cra_ctxsize = sizeof(struct s390_des_ctx),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) .base.cra_module = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) .min_keysize = DES_KEY_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) .max_keysize = DES_KEY_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) .ivsize = DES_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) .setkey = des_setkey_skcipher,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) .encrypt = ctr_des_crypt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) .decrypt = ctr_des_crypt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) .chunksize = DES_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) static int ctr_des3_crypt(struct skcipher_request *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) return ctr_desall_crypt(req, CPACF_KMCTR_TDEA_192);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) static struct skcipher_alg ctr_des3_alg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) .base.cra_name = "ctr(des3_ede)",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) .base.cra_driver_name = "ctr-des3_ede-s390",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) .base.cra_priority = 400, /* combo: des3 + ede */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) .base.cra_blocksize = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) .base.cra_ctxsize = sizeof(struct s390_des_ctx),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) .base.cra_module = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) .min_keysize = DES3_KEY_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) .max_keysize = DES3_KEY_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) .ivsize = DES_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) .setkey = des3_setkey_skcipher,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) .encrypt = ctr_des3_crypt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) .decrypt = ctr_des3_crypt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) .chunksize = DES_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) static struct crypto_alg *des_s390_algs_ptr[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) static int des_s390_algs_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) static struct skcipher_alg *des_s390_skciphers_ptr[6];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) static int des_s390_skciphers_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) static int des_s390_register_alg(struct crypto_alg *alg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) ret = crypto_register_alg(alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) if (!ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) des_s390_algs_ptr[des_s390_algs_num++] = alg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) static int des_s390_register_skcipher(struct skcipher_alg *alg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) ret = crypto_register_skcipher(alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) if (!ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) des_s390_skciphers_ptr[des_s390_skciphers_num++] = alg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) static void des_s390_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) while (des_s390_algs_num--)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) crypto_unregister_alg(des_s390_algs_ptr[des_s390_algs_num]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) while (des_s390_skciphers_num--)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) crypto_unregister_skcipher(des_s390_skciphers_ptr[des_s390_skciphers_num]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) if (ctrblk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) free_page((unsigned long) ctrblk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) static int __init des_s390_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) /* Query available functions for KM, KMC and KMCTR */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) cpacf_query(CPACF_KM, &km_functions);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) cpacf_query(CPACF_KMC, &kmc_functions);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) cpacf_query(CPACF_KMCTR, &kmctr_functions);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) if (cpacf_test_func(&km_functions, CPACF_KM_DEA)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) ret = des_s390_register_alg(&des_alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) goto out_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) ret = des_s390_register_skcipher(&ecb_des_alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) goto out_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) if (cpacf_test_func(&kmc_functions, CPACF_KMC_DEA)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) ret = des_s390_register_skcipher(&cbc_des_alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) goto out_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) if (cpacf_test_func(&km_functions, CPACF_KM_TDEA_192)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) ret = des_s390_register_alg(&des3_alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) goto out_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) ret = des_s390_register_skcipher(&ecb_des3_alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) goto out_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) if (cpacf_test_func(&kmc_functions, CPACF_KMC_TDEA_192)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) ret = des_s390_register_skcipher(&cbc_des3_alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) goto out_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) if (cpacf_test_func(&kmctr_functions, CPACF_KMCTR_DEA) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) cpacf_test_func(&kmctr_functions, CPACF_KMCTR_TDEA_192)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) ctrblk = (u8 *) __get_free_page(GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) if (!ctrblk) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) ret = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) goto out_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) if (cpacf_test_func(&kmctr_functions, CPACF_KMCTR_DEA)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) ret = des_s390_register_skcipher(&ctr_des_alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) goto out_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) if (cpacf_test_func(&kmctr_functions, CPACF_KMCTR_TDEA_192)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) ret = des_s390_register_skcipher(&ctr_des3_alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) goto out_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) out_err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) des_s390_exit();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) module_cpu_feature_match(MSA, des_s390_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) module_exit(des_s390_exit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) MODULE_ALIAS_CRYPTO("des");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) MODULE_ALIAS_CRYPTO("des3_ede");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) MODULE_DESCRIPTION("DES & Triple DES EDE Cipher Algorithms");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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