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-rw-r--r--arch/arm64/crypto/aes-glue.c675
1 files changed, 675 insertions, 0 deletions
diff --git a/arch/arm64/crypto/aes-glue.c b/arch/arm64/crypto/aes-glue.c
new file mode 100644
index 000000000..adcb83eb6
--- /dev/null
+++ b/arch/arm64/crypto/aes-glue.c
@@ -0,0 +1,675 @@
+/*
+ * linux/arch/arm64/crypto/aes-glue.c - wrapper code for ARMv8 AES
+ *
+ * Copyright (C) 2013 - 2017 Linaro Ltd <ard.biesheuvel@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <asm/neon.h>
+#include <asm/hwcap.h>
+#include <asm/simd.h>
+#include <crypto/aes.h>
+#include <crypto/internal/hash.h>
+#include <crypto/internal/simd.h>
+#include <crypto/internal/skcipher.h>
+#include <linux/module.h>
+#include <linux/cpufeature.h>
+#include <crypto/xts.h>
+
+#include "aes-ce-setkey.h"
+#include "aes-ctr-fallback.h"
+
+#ifdef USE_V8_CRYPTO_EXTENSIONS
+#define MODE "ce"
+#define PRIO 300
+#define aes_setkey ce_aes_setkey
+#define aes_expandkey ce_aes_expandkey
+#define aes_ecb_encrypt ce_aes_ecb_encrypt
+#define aes_ecb_decrypt ce_aes_ecb_decrypt
+#define aes_cbc_encrypt ce_aes_cbc_encrypt
+#define aes_cbc_decrypt ce_aes_cbc_decrypt
+#define aes_ctr_encrypt ce_aes_ctr_encrypt
+#define aes_xts_encrypt ce_aes_xts_encrypt
+#define aes_xts_decrypt ce_aes_xts_decrypt
+#define aes_mac_update ce_aes_mac_update
+MODULE_DESCRIPTION("AES-ECB/CBC/CTR/XTS using ARMv8 Crypto Extensions");
+#else
+#define MODE "neon"
+#define PRIO 200
+#define aes_setkey crypto_aes_set_key
+#define aes_expandkey crypto_aes_expand_key
+#define aes_ecb_encrypt neon_aes_ecb_encrypt
+#define aes_ecb_decrypt neon_aes_ecb_decrypt
+#define aes_cbc_encrypt neon_aes_cbc_encrypt
+#define aes_cbc_decrypt neon_aes_cbc_decrypt
+#define aes_ctr_encrypt neon_aes_ctr_encrypt
+#define aes_xts_encrypt neon_aes_xts_encrypt
+#define aes_xts_decrypt neon_aes_xts_decrypt
+#define aes_mac_update neon_aes_mac_update
+MODULE_DESCRIPTION("AES-ECB/CBC/CTR/XTS using ARMv8 NEON");
+MODULE_ALIAS_CRYPTO("ecb(aes)");
+MODULE_ALIAS_CRYPTO("cbc(aes)");
+MODULE_ALIAS_CRYPTO("ctr(aes)");
+MODULE_ALIAS_CRYPTO("xts(aes)");
+MODULE_ALIAS_CRYPTO("cmac(aes)");
+MODULE_ALIAS_CRYPTO("xcbc(aes)");
+MODULE_ALIAS_CRYPTO("cbcmac(aes)");
+#endif
+
+MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
+MODULE_LICENSE("GPL v2");
+
+/* defined in aes-modes.S */
+asmlinkage void aes_ecb_encrypt(u8 out[], u8 const in[], u8 const rk[],
+ int rounds, int blocks);
+asmlinkage void aes_ecb_decrypt(u8 out[], u8 const in[], u8 const rk[],
+ int rounds, int blocks);
+
+asmlinkage void aes_cbc_encrypt(u8 out[], u8 const in[], u8 const rk[],
+ int rounds, int blocks, u8 iv[]);
+asmlinkage void aes_cbc_decrypt(u8 out[], u8 const in[], u8 const rk[],
+ int rounds, int blocks, u8 iv[]);
+
+asmlinkage void aes_ctr_encrypt(u8 out[], u8 const in[], u8 const rk[],
+ int rounds, int blocks, u8 ctr[]);
+
+asmlinkage void aes_xts_encrypt(u8 out[], u8 const in[], u8 const rk1[],
+ int rounds, int blocks, u8 const rk2[], u8 iv[],
+ int first);
+asmlinkage void aes_xts_decrypt(u8 out[], u8 const in[], u8 const rk1[],
+ int rounds, int blocks, u8 const rk2[], u8 iv[],
+ int first);
+
+asmlinkage void aes_mac_update(u8 const in[], u32 const rk[], int rounds,
+ int blocks, u8 dg[], int enc_before,
+ int enc_after);
+
+struct crypto_aes_xts_ctx {
+ struct crypto_aes_ctx key1;
+ struct crypto_aes_ctx __aligned(8) key2;
+};
+
+struct mac_tfm_ctx {
+ struct crypto_aes_ctx key;
+ u8 __aligned(8) consts[];
+};
+
+struct mac_desc_ctx {
+ unsigned int len;
+ u8 dg[AES_BLOCK_SIZE];
+};
+
+static int skcipher_aes_setkey(struct crypto_skcipher *tfm, const u8 *in_key,
+ unsigned int key_len)
+{
+ return aes_setkey(crypto_skcipher_tfm(tfm), in_key, key_len);
+}
+
+static int xts_set_key(struct crypto_skcipher *tfm, const u8 *in_key,
+ unsigned int key_len)
+{
+ struct crypto_aes_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
+ int ret;
+
+ ret = xts_verify_key(tfm, in_key, key_len);
+ if (ret)
+ return ret;
+
+ ret = aes_expandkey(&ctx->key1, in_key, key_len / 2);
+ if (!ret)
+ ret = aes_expandkey(&ctx->key2, &in_key[key_len / 2],
+ key_len / 2);
+ if (!ret)
+ return 0;
+
+ crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ return -EINVAL;
+}
+
+static int ecb_encrypt(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct crypto_aes_ctx *ctx = crypto_skcipher_ctx(tfm);
+ int err, rounds = 6 + ctx->key_length / 4;
+ struct skcipher_walk walk;
+ unsigned int blocks;
+
+ err = skcipher_walk_virt(&walk, req, false);
+
+ while ((blocks = (walk.nbytes / AES_BLOCK_SIZE))) {
+ kernel_neon_begin();
+ aes_ecb_encrypt(walk.dst.virt.addr, walk.src.virt.addr,
+ (u8 *)ctx->key_enc, rounds, blocks);
+ kernel_neon_end();
+ err = skcipher_walk_done(&walk, walk.nbytes % AES_BLOCK_SIZE);
+ }
+ return err;
+}
+
+static int ecb_decrypt(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct crypto_aes_ctx *ctx = crypto_skcipher_ctx(tfm);
+ int err, rounds = 6 + ctx->key_length / 4;
+ struct skcipher_walk walk;
+ unsigned int blocks;
+
+ err = skcipher_walk_virt(&walk, req, false);
+
+ while ((blocks = (walk.nbytes / AES_BLOCK_SIZE))) {
+ kernel_neon_begin();
+ aes_ecb_decrypt(walk.dst.virt.addr, walk.src.virt.addr,
+ (u8 *)ctx->key_dec, rounds, blocks);
+ kernel_neon_end();
+ err = skcipher_walk_done(&walk, walk.nbytes % AES_BLOCK_SIZE);
+ }
+ return err;
+}
+
+static int cbc_encrypt(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct crypto_aes_ctx *ctx = crypto_skcipher_ctx(tfm);
+ int err, rounds = 6 + ctx->key_length / 4;
+ struct skcipher_walk walk;
+ unsigned int blocks;
+
+ err = skcipher_walk_virt(&walk, req, false);
+
+ while ((blocks = (walk.nbytes / AES_BLOCK_SIZE))) {
+ kernel_neon_begin();
+ aes_cbc_encrypt(walk.dst.virt.addr, walk.src.virt.addr,
+ (u8 *)ctx->key_enc, rounds, blocks, walk.iv);
+ kernel_neon_end();
+ err = skcipher_walk_done(&walk, walk.nbytes % AES_BLOCK_SIZE);
+ }
+ return err;
+}
+
+static int cbc_decrypt(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct crypto_aes_ctx *ctx = crypto_skcipher_ctx(tfm);
+ int err, rounds = 6 + ctx->key_length / 4;
+ struct skcipher_walk walk;
+ unsigned int blocks;
+
+ err = skcipher_walk_virt(&walk, req, false);
+
+ while ((blocks = (walk.nbytes / AES_BLOCK_SIZE))) {
+ kernel_neon_begin();
+ aes_cbc_decrypt(walk.dst.virt.addr, walk.src.virt.addr,
+ (u8 *)ctx->key_dec, rounds, blocks, walk.iv);
+ kernel_neon_end();
+ err = skcipher_walk_done(&walk, walk.nbytes % AES_BLOCK_SIZE);
+ }
+ return err;
+}
+
+static int ctr_encrypt(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct crypto_aes_ctx *ctx = crypto_skcipher_ctx(tfm);
+ int err, rounds = 6 + ctx->key_length / 4;
+ struct skcipher_walk walk;
+ int blocks;
+
+ err = skcipher_walk_virt(&walk, req, false);
+
+ while ((blocks = (walk.nbytes / AES_BLOCK_SIZE))) {
+ kernel_neon_begin();
+ aes_ctr_encrypt(walk.dst.virt.addr, walk.src.virt.addr,
+ (u8 *)ctx->key_enc, rounds, blocks, walk.iv);
+ kernel_neon_end();
+ err = skcipher_walk_done(&walk, walk.nbytes % AES_BLOCK_SIZE);
+ }
+ if (walk.nbytes) {
+ u8 __aligned(8) tail[AES_BLOCK_SIZE];
+ unsigned int nbytes = walk.nbytes;
+ u8 *tdst = walk.dst.virt.addr;
+ u8 *tsrc = walk.src.virt.addr;
+
+ /*
+ * Tell aes_ctr_encrypt() to process a tail block.
+ */
+ blocks = -1;
+
+ kernel_neon_begin();
+ aes_ctr_encrypt(tail, NULL, (u8 *)ctx->key_enc, rounds,
+ blocks, walk.iv);
+ kernel_neon_end();
+ crypto_xor_cpy(tdst, tsrc, tail, nbytes);
+ err = skcipher_walk_done(&walk, 0);
+ }
+
+ return err;
+}
+
+static int ctr_encrypt_sync(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct crypto_aes_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+ if (!may_use_simd())
+ return aes_ctr_encrypt_fallback(ctx, req);
+
+ return ctr_encrypt(req);
+}
+
+static int xts_encrypt(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct crypto_aes_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
+ int err, first, rounds = 6 + ctx->key1.key_length / 4;
+ struct skcipher_walk walk;
+ unsigned int blocks;
+
+ err = skcipher_walk_virt(&walk, req, false);
+
+ for (first = 1; (blocks = (walk.nbytes / AES_BLOCK_SIZE)); first = 0) {
+ kernel_neon_begin();
+ aes_xts_encrypt(walk.dst.virt.addr, walk.src.virt.addr,
+ (u8 *)ctx->key1.key_enc, rounds, blocks,
+ (u8 *)ctx->key2.key_enc, walk.iv, first);
+ kernel_neon_end();
+ err = skcipher_walk_done(&walk, walk.nbytes % AES_BLOCK_SIZE);
+ }
+
+ return err;
+}
+
+static int xts_decrypt(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct crypto_aes_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
+ int err, first, rounds = 6 + ctx->key1.key_length / 4;
+ struct skcipher_walk walk;
+ unsigned int blocks;
+
+ err = skcipher_walk_virt(&walk, req, false);
+
+ for (first = 1; (blocks = (walk.nbytes / AES_BLOCK_SIZE)); first = 0) {
+ kernel_neon_begin();
+ aes_xts_decrypt(walk.dst.virt.addr, walk.src.virt.addr,
+ (u8 *)ctx->key1.key_dec, rounds, blocks,
+ (u8 *)ctx->key2.key_enc, walk.iv, first);
+ kernel_neon_end();
+ err = skcipher_walk_done(&walk, walk.nbytes % AES_BLOCK_SIZE);
+ }
+
+ return err;
+}
+
+static struct skcipher_alg aes_algs[] = { {
+ .base = {
+ .cra_name = "__ecb(aes)",
+ .cra_driver_name = "__ecb-aes-" MODE,
+ .cra_priority = PRIO,
+ .cra_flags = CRYPTO_ALG_INTERNAL,
+ .cra_blocksize = AES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct crypto_aes_ctx),
+ .cra_module = THIS_MODULE,
+ },
+ .min_keysize = AES_MIN_KEY_SIZE,
+ .max_keysize = AES_MAX_KEY_SIZE,
+ .setkey = skcipher_aes_setkey,
+ .encrypt = ecb_encrypt,
+ .decrypt = ecb_decrypt,
+}, {
+ .base = {
+ .cra_name = "__cbc(aes)",
+ .cra_driver_name = "__cbc-aes-" MODE,
+ .cra_priority = PRIO,
+ .cra_flags = CRYPTO_ALG_INTERNAL,
+ .cra_blocksize = AES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct crypto_aes_ctx),
+ .cra_module = THIS_MODULE,
+ },
+ .min_keysize = AES_MIN_KEY_SIZE,
+ .max_keysize = AES_MAX_KEY_SIZE,
+ .ivsize = AES_BLOCK_SIZE,
+ .setkey = skcipher_aes_setkey,
+ .encrypt = cbc_encrypt,
+ .decrypt = cbc_decrypt,
+}, {
+ .base = {
+ .cra_name = "__ctr(aes)",
+ .cra_driver_name = "__ctr-aes-" MODE,
+ .cra_priority = PRIO,
+ .cra_flags = CRYPTO_ALG_INTERNAL,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct crypto_aes_ctx),
+ .cra_module = THIS_MODULE,
+ },
+ .min_keysize = AES_MIN_KEY_SIZE,
+ .max_keysize = AES_MAX_KEY_SIZE,
+ .ivsize = AES_BLOCK_SIZE,
+ .chunksize = AES_BLOCK_SIZE,
+ .setkey = skcipher_aes_setkey,
+ .encrypt = ctr_encrypt,
+ .decrypt = ctr_encrypt,
+}, {
+ .base = {
+ .cra_name = "ctr(aes)",
+ .cra_driver_name = "ctr-aes-" MODE,
+ .cra_priority = PRIO - 1,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct crypto_aes_ctx),
+ .cra_module = THIS_MODULE,
+ },
+ .min_keysize = AES_MIN_KEY_SIZE,
+ .max_keysize = AES_MAX_KEY_SIZE,
+ .ivsize = AES_BLOCK_SIZE,
+ .chunksize = AES_BLOCK_SIZE,
+ .setkey = skcipher_aes_setkey,
+ .encrypt = ctr_encrypt_sync,
+ .decrypt = ctr_encrypt_sync,
+}, {
+ .base = {
+ .cra_name = "__xts(aes)",
+ .cra_driver_name = "__xts-aes-" MODE,
+ .cra_priority = PRIO,
+ .cra_flags = CRYPTO_ALG_INTERNAL,
+ .cra_blocksize = AES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct crypto_aes_xts_ctx),
+ .cra_module = THIS_MODULE,
+ },
+ .min_keysize = 2 * AES_MIN_KEY_SIZE,
+ .max_keysize = 2 * AES_MAX_KEY_SIZE,
+ .ivsize = AES_BLOCK_SIZE,
+ .setkey = xts_set_key,
+ .encrypt = xts_encrypt,
+ .decrypt = xts_decrypt,
+} };
+
+static int cbcmac_setkey(struct crypto_shash *tfm, const u8 *in_key,
+ unsigned int key_len)
+{
+ struct mac_tfm_ctx *ctx = crypto_shash_ctx(tfm);
+ int err;
+
+ err = aes_expandkey(&ctx->key, in_key, key_len);
+ if (err)
+ crypto_shash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+
+ return err;
+}
+
+static void cmac_gf128_mul_by_x(be128 *y, const be128 *x)
+{
+ u64 a = be64_to_cpu(x->a);
+ u64 b = be64_to_cpu(x->b);
+
+ y->a = cpu_to_be64((a << 1) | (b >> 63));
+ y->b = cpu_to_be64((b << 1) ^ ((a >> 63) ? 0x87 : 0));
+}
+
+static int cmac_setkey(struct crypto_shash *tfm, const u8 *in_key,
+ unsigned int key_len)
+{
+ struct mac_tfm_ctx *ctx = crypto_shash_ctx(tfm);
+ be128 *consts = (be128 *)ctx->consts;
+ u8 *rk = (u8 *)ctx->key.key_enc;
+ int rounds = 6 + key_len / 4;
+ int err;
+
+ err = cbcmac_setkey(tfm, in_key, key_len);
+ if (err)
+ return err;
+
+ /* encrypt the zero vector */
+ kernel_neon_begin();
+ aes_ecb_encrypt(ctx->consts, (u8[AES_BLOCK_SIZE]){}, rk, rounds, 1);
+ kernel_neon_end();
+
+ cmac_gf128_mul_by_x(consts, consts);
+ cmac_gf128_mul_by_x(consts + 1, consts);
+
+ return 0;
+}
+
+static int xcbc_setkey(struct crypto_shash *tfm, const u8 *in_key,
+ unsigned int key_len)
+{
+ static u8 const ks[3][AES_BLOCK_SIZE] = {
+ { [0 ... AES_BLOCK_SIZE - 1] = 0x1 },
+ { [0 ... AES_BLOCK_SIZE - 1] = 0x2 },
+ { [0 ... AES_BLOCK_SIZE - 1] = 0x3 },
+ };
+
+ struct mac_tfm_ctx *ctx = crypto_shash_ctx(tfm);
+ u8 *rk = (u8 *)ctx->key.key_enc;
+ int rounds = 6 + key_len / 4;
+ u8 key[AES_BLOCK_SIZE];
+ int err;
+
+ err = cbcmac_setkey(tfm, in_key, key_len);
+ if (err)
+ return err;
+
+ kernel_neon_begin();
+ aes_ecb_encrypt(key, ks[0], rk, rounds, 1);
+ aes_ecb_encrypt(ctx->consts, ks[1], rk, rounds, 2);
+ kernel_neon_end();
+
+ return cbcmac_setkey(tfm, key, sizeof(key));
+}
+
+static int mac_init(struct shash_desc *desc)
+{
+ struct mac_desc_ctx *ctx = shash_desc_ctx(desc);
+
+ memset(ctx->dg, 0, AES_BLOCK_SIZE);
+ ctx->len = 0;
+
+ return 0;
+}
+
+static void mac_do_update(struct crypto_aes_ctx *ctx, u8 const in[], int blocks,
+ u8 dg[], int enc_before, int enc_after)
+{
+ int rounds = 6 + ctx->key_length / 4;
+
+ if (may_use_simd()) {
+ kernel_neon_begin();
+ aes_mac_update(in, ctx->key_enc, rounds, blocks, dg, enc_before,
+ enc_after);
+ kernel_neon_end();
+ } else {
+ if (enc_before)
+ __aes_arm64_encrypt(ctx->key_enc, dg, dg, rounds);
+
+ while (blocks--) {
+ crypto_xor(dg, in, AES_BLOCK_SIZE);
+ in += AES_BLOCK_SIZE;
+
+ if (blocks || enc_after)
+ __aes_arm64_encrypt(ctx->key_enc, dg, dg,
+ rounds);
+ }
+ }
+}
+
+static int mac_update(struct shash_desc *desc, const u8 *p, unsigned int len)
+{
+ struct mac_tfm_ctx *tctx = crypto_shash_ctx(desc->tfm);
+ struct mac_desc_ctx *ctx = shash_desc_ctx(desc);
+
+ while (len > 0) {
+ unsigned int l;
+
+ if ((ctx->len % AES_BLOCK_SIZE) == 0 &&
+ (ctx->len + len) > AES_BLOCK_SIZE) {
+
+ int blocks = len / AES_BLOCK_SIZE;
+
+ len %= AES_BLOCK_SIZE;
+
+ mac_do_update(&tctx->key, p, blocks, ctx->dg,
+ (ctx->len != 0), (len != 0));
+
+ p += blocks * AES_BLOCK_SIZE;
+
+ if (!len) {
+ ctx->len = AES_BLOCK_SIZE;
+ break;
+ }
+ ctx->len = 0;
+ }
+
+ l = min(len, AES_BLOCK_SIZE - ctx->len);
+
+ if (l <= AES_BLOCK_SIZE) {
+ crypto_xor(ctx->dg + ctx->len, p, l);
+ ctx->len += l;
+ len -= l;
+ p += l;
+ }
+ }
+
+ return 0;
+}
+
+static int cbcmac_final(struct shash_desc *desc, u8 *out)
+{
+ struct mac_tfm_ctx *tctx = crypto_shash_ctx(desc->tfm);
+ struct mac_desc_ctx *ctx = shash_desc_ctx(desc);
+
+ mac_do_update(&tctx->key, NULL, 0, ctx->dg, 1, 0);
+
+ memcpy(out, ctx->dg, AES_BLOCK_SIZE);
+
+ return 0;
+}
+
+static int cmac_final(struct shash_desc *desc, u8 *out)
+{
+ struct mac_tfm_ctx *tctx = crypto_shash_ctx(desc->tfm);
+ struct mac_desc_ctx *ctx = shash_desc_ctx(desc);
+ u8 *consts = tctx->consts;
+
+ if (ctx->len != AES_BLOCK_SIZE) {
+ ctx->dg[ctx->len] ^= 0x80;
+ consts += AES_BLOCK_SIZE;
+ }
+
+ mac_do_update(&tctx->key, consts, 1, ctx->dg, 0, 1);
+
+ memcpy(out, ctx->dg, AES_BLOCK_SIZE);
+
+ return 0;
+}
+
+static struct shash_alg mac_algs[] = { {
+ .base.cra_name = "cmac(aes)",
+ .base.cra_driver_name = "cmac-aes-" MODE,
+ .base.cra_priority = PRIO,
+ .base.cra_blocksize = AES_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct mac_tfm_ctx) +
+ 2 * AES_BLOCK_SIZE,
+ .base.cra_module = THIS_MODULE,
+
+ .digestsize = AES_BLOCK_SIZE,
+ .init = mac_init,
+ .update = mac_update,
+ .final = cmac_final,
+ .setkey = cmac_setkey,
+ .descsize = sizeof(struct mac_desc_ctx),
+}, {
+ .base.cra_name = "xcbc(aes)",
+ .base.cra_driver_name = "xcbc-aes-" MODE,
+ .base.cra_priority = PRIO,
+ .base.cra_blocksize = AES_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct mac_tfm_ctx) +
+ 2 * AES_BLOCK_SIZE,
+ .base.cra_module = THIS_MODULE,
+
+ .digestsize = AES_BLOCK_SIZE,
+ .init = mac_init,
+ .update = mac_update,
+ .final = cmac_final,
+ .setkey = xcbc_setkey,
+ .descsize = sizeof(struct mac_desc_ctx),
+}, {
+ .base.cra_name = "cbcmac(aes)",
+ .base.cra_driver_name = "cbcmac-aes-" MODE,
+ .base.cra_priority = PRIO,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct mac_tfm_ctx),
+ .base.cra_module = THIS_MODULE,
+
+ .digestsize = AES_BLOCK_SIZE,
+ .init = mac_init,
+ .update = mac_update,
+ .final = cbcmac_final,
+ .setkey = cbcmac_setkey,
+ .descsize = sizeof(struct mac_desc_ctx),
+} };
+
+static struct simd_skcipher_alg *aes_simd_algs[ARRAY_SIZE(aes_algs)];
+
+static void aes_exit(void)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(aes_simd_algs); i++)
+ if (aes_simd_algs[i])
+ simd_skcipher_free(aes_simd_algs[i]);
+
+ crypto_unregister_shashes(mac_algs, ARRAY_SIZE(mac_algs));
+ crypto_unregister_skciphers(aes_algs, ARRAY_SIZE(aes_algs));
+}
+
+static int __init aes_init(void)
+{
+ struct simd_skcipher_alg *simd;
+ const char *basename;
+ const char *algname;
+ const char *drvname;
+ int err;
+ int i;
+
+ err = crypto_register_skciphers(aes_algs, ARRAY_SIZE(aes_algs));
+ if (err)
+ return err;
+
+ err = crypto_register_shashes(mac_algs, ARRAY_SIZE(mac_algs));
+ if (err)
+ goto unregister_ciphers;
+
+ for (i = 0; i < ARRAY_SIZE(aes_algs); i++) {
+ if (!(aes_algs[i].base.cra_flags & CRYPTO_ALG_INTERNAL))
+ continue;
+
+ algname = aes_algs[i].base.cra_name + 2;
+ drvname = aes_algs[i].base.cra_driver_name + 2;
+ basename = aes_algs[i].base.cra_driver_name;
+ simd = simd_skcipher_create_compat(algname, drvname, basename);
+ err = PTR_ERR(simd);
+ if (IS_ERR(simd))
+ goto unregister_simds;
+
+ aes_simd_algs[i] = simd;
+ }
+
+ return 0;
+
+unregister_simds:
+ aes_exit();
+ return err;
+unregister_ciphers:
+ crypto_unregister_skciphers(aes_algs, ARRAY_SIZE(aes_algs));
+ return err;
+}
+
+#ifdef USE_V8_CRYPTO_EXTENSIONS
+module_cpu_feature_match(AES, aes_init);
+#else
+module_init(aes_init);
+EXPORT_SYMBOL(neon_aes_ecb_encrypt);
+EXPORT_SYMBOL(neon_aes_cbc_encrypt);
+#endif
+module_exit(aes_exit);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-04 00:18:51 +0000