ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/crypto/des_generic.c b/marvell/linux/crypto/des_generic.c
new file mode 100644
index 0000000..6e13a4a
--- /dev/null
+++ b/marvell/linux/crypto/des_generic.c
@@ -0,0 +1,140 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Cryptographic API.
+ *
+ * DES & Triple DES EDE Cipher Algorithms.
+ *
+ * Copyright (c) 2005 Dag Arne Osvik <da@osvik.no>
+ */
+
+#include <asm/byteorder.h>
+#include <linux/bitops.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/crypto.h>
+
+#include <crypto/internal/des.h>
+
+static int des_setkey(struct crypto_tfm *tfm, const u8 *key,
+ unsigned int keylen)
+{
+ struct des_ctx *dctx = crypto_tfm_ctx(tfm);
+ int err;
+
+ err = des_expand_key(dctx, key, keylen);
+ if (err == -ENOKEY) {
+ if (crypto_tfm_get_flags(tfm) & CRYPTO_TFM_REQ_FORBID_WEAK_KEYS)
+ err = -EINVAL;
+ else
+ err = 0;
+ }
+
+ if (err) {
+ memset(dctx, 0, sizeof(*dctx));
+ crypto_tfm_set_flags(tfm, CRYPTO_TFM_RES_WEAK_KEY);
+ }
+ return err;
+}
+
+static void crypto_des_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+{
+ const struct des_ctx *dctx = crypto_tfm_ctx(tfm);
+
+ des_encrypt(dctx, dst, src);
+}
+
+static void crypto_des_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+{
+ const struct des_ctx *dctx = crypto_tfm_ctx(tfm);
+
+ des_decrypt(dctx, dst, src);
+}
+
+static int des3_ede_setkey(struct crypto_tfm *tfm, const u8 *key,
+ unsigned int keylen)
+{
+ struct des3_ede_ctx *dctx = crypto_tfm_ctx(tfm);
+ int err;
+
+ err = des3_ede_expand_key(dctx, key, keylen);
+ if (err == -ENOKEY) {
+ if (crypto_tfm_get_flags(tfm) & CRYPTO_TFM_REQ_FORBID_WEAK_KEYS)
+ err = -EINVAL;
+ else
+ err = 0;
+ }
+
+ if (err) {
+ memset(dctx, 0, sizeof(*dctx));
+ crypto_tfm_set_flags(tfm, CRYPTO_TFM_RES_WEAK_KEY);
+ }
+ return err;
+}
+
+static void crypto_des3_ede_encrypt(struct crypto_tfm *tfm, u8 *dst,
+ const u8 *src)
+{
+ const struct des3_ede_ctx *dctx = crypto_tfm_ctx(tfm);
+
+ des3_ede_encrypt(dctx, dst, src);
+}
+
+static void crypto_des3_ede_decrypt(struct crypto_tfm *tfm, u8 *dst,
+ const u8 *src)
+{
+ const struct des3_ede_ctx *dctx = crypto_tfm_ctx(tfm);
+
+ des3_ede_decrypt(dctx, dst, src);
+}
+
+static struct crypto_alg des_algs[2] = { {
+ .cra_name = "des",
+ .cra_driver_name = "des-generic",
+ .cra_priority = 100,
+ .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
+ .cra_blocksize = DES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct des_ctx),
+ .cra_module = THIS_MODULE,
+ .cra_u = { .cipher = {
+ .cia_min_keysize = DES_KEY_SIZE,
+ .cia_max_keysize = DES_KEY_SIZE,
+ .cia_setkey = des_setkey,
+ .cia_encrypt = crypto_des_encrypt,
+ .cia_decrypt = crypto_des_decrypt } }
+}, {
+ .cra_name = "des3_ede",
+ .cra_driver_name = "des3_ede-generic",
+ .cra_priority = 100,
+ .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
+ .cra_blocksize = DES3_EDE_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct des3_ede_ctx),
+ .cra_module = THIS_MODULE,
+ .cra_u = { .cipher = {
+ .cia_min_keysize = DES3_EDE_KEY_SIZE,
+ .cia_max_keysize = DES3_EDE_KEY_SIZE,
+ .cia_setkey = des3_ede_setkey,
+ .cia_encrypt = crypto_des3_ede_encrypt,
+ .cia_decrypt = crypto_des3_ede_decrypt } }
+} };
+
+static int __init des_generic_mod_init(void)
+{
+ return crypto_register_algs(des_algs, ARRAY_SIZE(des_algs));
+}
+
+static void __exit des_generic_mod_fini(void)
+{
+ crypto_unregister_algs(des_algs, ARRAY_SIZE(des_algs));
+}
+
+subsys_initcall(des_generic_mod_init);
+module_exit(des_generic_mod_fini);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("DES & Triple DES EDE Cipher Algorithms");
+MODULE_AUTHOR("Dag Arne Osvik <da@osvik.no>");
+MODULE_ALIAS_CRYPTO("des");
+MODULE_ALIAS_CRYPTO("des-generic");
+MODULE_ALIAS_CRYPTO("des3_ede");
+MODULE_ALIAS_CRYPTO("des3_ede-generic");