Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /* Glue code for DES encryption optimized for sparc64 crypto opcodes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  * Copyright (C) 2012 David S. Miller <davem@davemloft.net>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) #define pr_fmt(fmt)	KBUILD_MODNAME ": " fmt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <linux/crypto.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/mm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <crypto/algapi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <crypto/internal/des.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <crypto/internal/skcipher.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include <asm/fpumacro.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include <asm/pstate.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #include <asm/elf.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) #include "opcodes.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) struct des_sparc64_ctx {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 	u64 encrypt_expkey[DES_EXPKEY_WORDS / 2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 	u64 decrypt_expkey[DES_EXPKEY_WORDS / 2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) struct des3_ede_sparc64_ctx {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 	u64 encrypt_expkey[DES3_EDE_EXPKEY_WORDS / 2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 	u64 decrypt_expkey[DES3_EDE_EXPKEY_WORDS / 2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) static void encrypt_to_decrypt(u64 *d, const u64 *e)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 	const u64 *s = e + (DES_EXPKEY_WORDS / 2) - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	for (i = 0; i < DES_EXPKEY_WORDS / 2; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 		*d++ = *s--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) extern void des_sparc64_key_expand(const u32 *input_key, u64 *key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) static int des_set_key(struct crypto_tfm *tfm, const u8 *key,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 		       unsigned int keylen)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	struct des_sparc64_ctx *dctx = crypto_tfm_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	/* Even though we have special instructions for key expansion,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	 * we call des_verify_key() so that we don't have to write our own
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	 * weak key detection code.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	err = crypto_des_verify_key(tfm, key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	des_sparc64_key_expand((const u32 *) key, &dctx->encrypt_expkey[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	encrypt_to_decrypt(&dctx->decrypt_expkey[0], &dctx->encrypt_expkey[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) static int des_set_key_skcipher(struct crypto_skcipher *tfm, const u8 *key,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 				unsigned int keylen)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	return des_set_key(crypto_skcipher_tfm(tfm), key, keylen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) extern void des_sparc64_crypt(const u64 *key, const u64 *input,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 			      u64 *output);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) static void sparc_des_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 	struct des_sparc64_ctx *ctx = crypto_tfm_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	const u64 *K = ctx->encrypt_expkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 	des_sparc64_crypt(K, (const u64 *) src, (u64 *) dst);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) static void sparc_des_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 	struct des_sparc64_ctx *ctx = crypto_tfm_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	const u64 *K = ctx->decrypt_expkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	des_sparc64_crypt(K, (const u64 *) src, (u64 *) dst);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) extern void des_sparc64_load_keys(const u64 *key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) extern void des_sparc64_ecb_crypt(const u64 *input, u64 *output,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 				  unsigned int len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) static int __ecb_crypt(struct skcipher_request *req, bool encrypt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	const struct des_sparc64_ctx *ctx = crypto_skcipher_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	struct skcipher_walk walk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	unsigned int nbytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	err = skcipher_walk_virt(&walk, req, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	if (encrypt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 		des_sparc64_load_keys(&ctx->encrypt_expkey[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 		des_sparc64_load_keys(&ctx->decrypt_expkey[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	while ((nbytes = walk.nbytes) != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 		des_sparc64_ecb_crypt(walk.src.virt.addr, walk.dst.virt.addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 				      round_down(nbytes, DES_BLOCK_SIZE));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 		err = skcipher_walk_done(&walk, nbytes % DES_BLOCK_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	fprs_write(0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) static int ecb_encrypt(struct skcipher_request *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	return __ecb_crypt(req, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) static int ecb_decrypt(struct skcipher_request *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	return __ecb_crypt(req, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) extern void des_sparc64_cbc_encrypt(const u64 *input, u64 *output,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 				    unsigned int len, u64 *iv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) extern void des_sparc64_cbc_decrypt(const u64 *input, u64 *output,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 				    unsigned int len, u64 *iv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) static int __cbc_crypt(struct skcipher_request *req, bool encrypt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	const struct des_sparc64_ctx *ctx = crypto_skcipher_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 	struct skcipher_walk walk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	unsigned int nbytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	err = skcipher_walk_virt(&walk, req, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	if (encrypt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 		des_sparc64_load_keys(&ctx->encrypt_expkey[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 		des_sparc64_load_keys(&ctx->decrypt_expkey[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	while ((nbytes = walk.nbytes) != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 		if (encrypt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 			des_sparc64_cbc_encrypt(walk.src.virt.addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 						walk.dst.virt.addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 						round_down(nbytes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 							   DES_BLOCK_SIZE),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 						walk.iv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 		else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 			des_sparc64_cbc_decrypt(walk.src.virt.addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 						walk.dst.virt.addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 						round_down(nbytes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 							   DES_BLOCK_SIZE),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 						walk.iv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 		err = skcipher_walk_done(&walk, nbytes % DES_BLOCK_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	fprs_write(0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) static int cbc_encrypt(struct skcipher_request *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	return __cbc_crypt(req, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) static int cbc_decrypt(struct skcipher_request *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	return __cbc_crypt(req, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) static int des3_ede_set_key(struct crypto_tfm *tfm, const u8 *key,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 			    unsigned int keylen)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	struct des3_ede_sparc64_ctx *dctx = crypto_tfm_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	u64 k1[DES_EXPKEY_WORDS / 2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	u64 k2[DES_EXPKEY_WORDS / 2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	u64 k3[DES_EXPKEY_WORDS / 2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	err = crypto_des3_ede_verify_key(tfm, key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 	if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	des_sparc64_key_expand((const u32 *)key, k1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	key += DES_KEY_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	des_sparc64_key_expand((const u32 *)key, k2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	key += DES_KEY_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	des_sparc64_key_expand((const u32 *)key, k3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	memcpy(&dctx->encrypt_expkey[0], &k1[0], sizeof(k1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	encrypt_to_decrypt(&dctx->encrypt_expkey[DES_EXPKEY_WORDS / 2], &k2[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 	memcpy(&dctx->encrypt_expkey[(DES_EXPKEY_WORDS / 2) * 2],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	       &k3[0], sizeof(k3));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 	encrypt_to_decrypt(&dctx->decrypt_expkey[0], &k3[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	memcpy(&dctx->decrypt_expkey[DES_EXPKEY_WORDS / 2],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	       &k2[0], sizeof(k2));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	encrypt_to_decrypt(&dctx->decrypt_expkey[(DES_EXPKEY_WORDS / 2) * 2],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 			   &k1[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 
^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_ede_set_key_skcipher(struct crypto_skcipher *tfm, const u8 *key,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 				     unsigned int keylen)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	return des3_ede_set_key(crypto_skcipher_tfm(tfm), key, keylen);
^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) extern void des3_ede_sparc64_crypt(const u64 *key, const u64 *input,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 				   u64 *output);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) static void sparc_des3_ede_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 	struct des3_ede_sparc64_ctx *ctx = crypto_tfm_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	const u64 *K = ctx->encrypt_expkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 	des3_ede_sparc64_crypt(K, (const u64 *) src, (u64 *) dst);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) static void sparc_des3_ede_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	struct des3_ede_sparc64_ctx *ctx = crypto_tfm_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	const u64 *K = ctx->decrypt_expkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	des3_ede_sparc64_crypt(K, (const u64 *) src, (u64 *) dst);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) extern void des3_ede_sparc64_load_keys(const u64 *key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) extern void des3_ede_sparc64_ecb_crypt(const u64 *expkey, const u64 *input,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 				       u64 *output, unsigned int len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) static int __ecb3_crypt(struct skcipher_request *req, bool encrypt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	const struct des3_ede_sparc64_ctx *ctx = crypto_skcipher_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 	struct skcipher_walk walk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 	const u64 *K;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 	unsigned int nbytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 	err = skcipher_walk_virt(&walk, req, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 	if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 	if (encrypt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 		K = &ctx->encrypt_expkey[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 		K = &ctx->decrypt_expkey[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 	des3_ede_sparc64_load_keys(K);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 	while ((nbytes = walk.nbytes) != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 		des3_ede_sparc64_ecb_crypt(K, walk.src.virt.addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 					   walk.dst.virt.addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 					   round_down(nbytes, DES_BLOCK_SIZE));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 		err = skcipher_walk_done(&walk, nbytes % DES_BLOCK_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 	fprs_write(0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) static int ecb3_encrypt(struct skcipher_request *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 	return __ecb3_crypt(req, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) static int ecb3_decrypt(struct skcipher_request *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 	return __ecb3_crypt(req, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) extern void des3_ede_sparc64_cbc_encrypt(const u64 *expkey, const u64 *input,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 					 u64 *output, unsigned int len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 					 u64 *iv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) extern void des3_ede_sparc64_cbc_decrypt(const u64 *expkey, const u64 *input,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 					 u64 *output, unsigned int len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 					 u64 *iv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) static int __cbc3_crypt(struct skcipher_request *req, bool encrypt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 	const struct des3_ede_sparc64_ctx *ctx = crypto_skcipher_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 	struct skcipher_walk walk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 	const u64 *K;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 	unsigned int nbytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 	err = skcipher_walk_virt(&walk, req, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 	if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 	if (encrypt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 		K = &ctx->encrypt_expkey[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 		K = &ctx->decrypt_expkey[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 	des3_ede_sparc64_load_keys(K);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 	while ((nbytes = walk.nbytes) != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 		if (encrypt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 			des3_ede_sparc64_cbc_encrypt(K, walk.src.virt.addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 						     walk.dst.virt.addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 						     round_down(nbytes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 								DES_BLOCK_SIZE),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 						     walk.iv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 		else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 			des3_ede_sparc64_cbc_decrypt(K, walk.src.virt.addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 						     walk.dst.virt.addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 						     round_down(nbytes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 								DES_BLOCK_SIZE),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 						     walk.iv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 		err = skcipher_walk_done(&walk, nbytes % DES_BLOCK_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) 	fprs_write(0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) static int cbc3_encrypt(struct skcipher_request *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 	return __cbc3_crypt(req, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) static int cbc3_decrypt(struct skcipher_request *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 	return __cbc3_crypt(req, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) static struct crypto_alg cipher_algs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 		.cra_name		= "des",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 		.cra_driver_name	= "des-sparc64",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) 		.cra_priority		= SPARC_CR_OPCODE_PRIORITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) 		.cra_flags		= CRYPTO_ALG_TYPE_CIPHER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) 		.cra_blocksize		= DES_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) 		.cra_ctxsize		= sizeof(struct des_sparc64_ctx),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) 		.cra_alignmask		= 7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) 		.cra_module		= THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) 		.cra_u	= {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) 			.cipher	= {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) 				.cia_min_keysize	= DES_KEY_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) 				.cia_max_keysize	= DES_KEY_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) 				.cia_setkey		= des_set_key,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) 				.cia_encrypt		= sparc_des_encrypt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) 				.cia_decrypt		= sparc_des_decrypt
^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) 	}, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) 		.cra_name		= "des3_ede",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) 		.cra_driver_name	= "des3_ede-sparc64",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) 		.cra_priority		= SPARC_CR_OPCODE_PRIORITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) 		.cra_flags		= CRYPTO_ALG_TYPE_CIPHER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) 		.cra_blocksize		= DES3_EDE_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) 		.cra_ctxsize		= sizeof(struct des3_ede_sparc64_ctx),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) 		.cra_alignmask		= 7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) 		.cra_module		= THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) 		.cra_u	= {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) 			.cipher	= {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) 				.cia_min_keysize	= DES3_EDE_KEY_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) 				.cia_max_keysize	= DES3_EDE_KEY_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) 				.cia_setkey		= des3_ede_set_key,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) 				.cia_encrypt		= sparc_des3_ede_encrypt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) 				.cia_decrypt		= sparc_des3_ede_decrypt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) 	}
^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 struct skcipher_alg skcipher_algs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) 		.base.cra_name		= "ecb(des)",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) 		.base.cra_driver_name	= "ecb-des-sparc64",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) 		.base.cra_priority	= SPARC_CR_OPCODE_PRIORITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) 		.base.cra_blocksize	= DES_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) 		.base.cra_ctxsize	= sizeof(struct des_sparc64_ctx),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) 		.base.cra_alignmask	= 7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) 		.base.cra_module	= THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) 		.min_keysize		= DES_KEY_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) 		.max_keysize		= DES_KEY_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) 		.setkey			= des_set_key_skcipher,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) 		.encrypt		= ecb_encrypt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) 		.decrypt		= ecb_decrypt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) 	}, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) 		.base.cra_name		= "cbc(des)",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) 		.base.cra_driver_name	= "cbc-des-sparc64",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) 		.base.cra_priority	= SPARC_CR_OPCODE_PRIORITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) 		.base.cra_blocksize	= DES_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) 		.base.cra_ctxsize	= sizeof(struct des_sparc64_ctx),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) 		.base.cra_alignmask	= 7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) 		.base.cra_module	= THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) 		.min_keysize		= DES_KEY_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) 		.max_keysize		= DES_KEY_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) 		.ivsize			= DES_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) 		.setkey			= des_set_key_skcipher,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) 		.encrypt		= cbc_encrypt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) 		.decrypt		= cbc_decrypt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) 	}, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) 		.base.cra_name		= "ecb(des3_ede)",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) 		.base.cra_driver_name	= "ecb-des3_ede-sparc64",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) 		.base.cra_priority	= SPARC_CR_OPCODE_PRIORITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) 		.base.cra_blocksize	= DES3_EDE_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) 		.base.cra_ctxsize	= sizeof(struct des3_ede_sparc64_ctx),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) 		.base.cra_alignmask	= 7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) 		.base.cra_module	= THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) 		.min_keysize		= DES3_EDE_KEY_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) 		.max_keysize		= DES3_EDE_KEY_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) 		.setkey			= des3_ede_set_key_skcipher,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) 		.encrypt		= ecb3_encrypt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) 		.decrypt		= ecb3_decrypt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) 	}, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) 		.base.cra_name		= "cbc(des3_ede)",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) 		.base.cra_driver_name	= "cbc-des3_ede-sparc64",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) 		.base.cra_priority	= SPARC_CR_OPCODE_PRIORITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) 		.base.cra_blocksize	= DES3_EDE_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) 		.base.cra_ctxsize	= sizeof(struct des3_ede_sparc64_ctx),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) 		.base.cra_alignmask	= 7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) 		.base.cra_module	= THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) 		.min_keysize		= DES3_EDE_KEY_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) 		.max_keysize		= DES3_EDE_KEY_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) 		.ivsize			= DES3_EDE_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) 		.setkey			= des3_ede_set_key_skcipher,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) 		.encrypt		= cbc3_encrypt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) 		.decrypt		= cbc3_decrypt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) static bool __init sparc64_has_des_opcode(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) 	unsigned long cfr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) 	if (!(sparc64_elf_hwcap & HWCAP_SPARC_CRYPTO))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) 		return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) 	__asm__ __volatile__("rd %%asr26, %0" : "=r" (cfr));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) 	if (!(cfr & CFR_DES))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) 		return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) 	return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) static int __init des_sparc64_mod_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) 	if (!sparc64_has_des_opcode()) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) 		pr_info("sparc64 des opcodes not available.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) 		return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) 	pr_info("Using sparc64 des opcodes optimized DES implementation\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) 	err = crypto_register_algs(cipher_algs, ARRAY_SIZE(cipher_algs));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) 	if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) 	err = crypto_register_skciphers(skcipher_algs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) 					ARRAY_SIZE(skcipher_algs));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) 	if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) 		crypto_unregister_algs(cipher_algs, ARRAY_SIZE(cipher_algs));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) static void __exit des_sparc64_mod_fini(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) 	crypto_unregister_algs(cipher_algs, ARRAY_SIZE(cipher_algs));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) 	crypto_unregister_skciphers(skcipher_algs, ARRAY_SIZE(skcipher_algs));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) module_init(des_sparc64_mod_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) module_exit(des_sparc64_mod_fini);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) MODULE_DESCRIPTION("DES & Triple DES EDE Cipher Algorithms, sparc64 des opcode accelerated");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) MODULE_ALIAS_CRYPTO("des");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) MODULE_ALIAS_CRYPTO("des3_ede");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) #include "crop_devid.c"