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Diffstat (limited to 'crypto/tea.c')
-rw-r--r--crypto/tea.c117
1 files changed, 36 insertions, 81 deletions
diff --git a/crypto/tea.c b/crypto/tea.c
index a6a02b30e47..0a572323ee4 100644
--- a/crypto/tea.c
+++ b/crypto/tea.c
@@ -23,7 +23,6 @@
#include <linux/module.h>
#include <linux/mm.h>
#include <asm/byteorder.h>
-#include <asm/scatterlist.h>
#include <linux/crypto.h>
#include <linux/types.h>
@@ -45,17 +44,11 @@ struct xtea_ctx {
u32 KEY[4];
};
-static int tea_setkey(void *ctx_arg, const u8 *in_key,
- unsigned int key_len, u32 *flags)
-{
- struct tea_ctx *ctx = ctx_arg;
+static int tea_setkey(struct crypto_tfm *tfm, const u8 *in_key,
+ unsigned int key_len)
+{
+ struct tea_ctx *ctx = crypto_tfm_ctx(tfm);
const __le32 *key = (const __le32 *)in_key;
-
- if (key_len != 16)
- {
- *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
- return -EINVAL;
- }
ctx->KEY[0] = le32_to_cpu(key[0]);
ctx->KEY[1] = le32_to_cpu(key[1]);
@@ -66,12 +59,11 @@ static int tea_setkey(void *ctx_arg, const u8 *in_key,
}
-static void tea_encrypt(void *ctx_arg, u8 *dst, const u8 *src)
-{
+static void tea_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+{
u32 y, z, n, sum = 0;
u32 k0, k1, k2, k3;
-
- struct tea_ctx *ctx = ctx_arg;
+ struct tea_ctx *ctx = crypto_tfm_ctx(tfm);
const __le32 *in = (const __le32 *)src;
__le32 *out = (__le32 *)dst;
@@ -95,11 +87,11 @@ static void tea_encrypt(void *ctx_arg, u8 *dst, const u8 *src)
out[1] = cpu_to_le32(z);
}
-static void tea_decrypt(void *ctx_arg, u8 *dst, const u8 *src)
-{
+static void tea_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+{
u32 y, z, n, sum;
u32 k0, k1, k2, k3;
- struct tea_ctx *ctx = ctx_arg;
+ struct tea_ctx *ctx = crypto_tfm_ctx(tfm);
const __le32 *in = (const __le32 *)src;
__le32 *out = (__le32 *)dst;
@@ -125,17 +117,11 @@ static void tea_decrypt(void *ctx_arg, u8 *dst, const u8 *src)
out[1] = cpu_to_le32(z);
}
-static int xtea_setkey(void *ctx_arg, const u8 *in_key,
- unsigned int key_len, u32 *flags)
-{
- struct xtea_ctx *ctx = ctx_arg;
+static int xtea_setkey(struct crypto_tfm *tfm, const u8 *in_key,
+ unsigned int key_len)
+{
+ struct xtea_ctx *ctx = crypto_tfm_ctx(tfm);
const __le32 *key = (const __le32 *)in_key;
-
- if (key_len != 16)
- {
- *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
- return -EINVAL;
- }
ctx->KEY[0] = le32_to_cpu(key[0]);
ctx->KEY[1] = le32_to_cpu(key[1]);
@@ -146,12 +132,11 @@ static int xtea_setkey(void *ctx_arg, const u8 *in_key,
}
-static void xtea_encrypt(void *ctx_arg, u8 *dst, const u8 *src)
-{
+static void xtea_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+{
u32 y, z, sum = 0;
u32 limit = XTEA_DELTA * XTEA_ROUNDS;
-
- struct xtea_ctx *ctx = ctx_arg;
+ struct xtea_ctx *ctx = crypto_tfm_ctx(tfm);
const __le32 *in = (const __le32 *)src;
__le32 *out = (__le32 *)dst;
@@ -168,10 +153,10 @@ static void xtea_encrypt(void *ctx_arg, u8 *dst, const u8 *src)
out[1] = cpu_to_le32(z);
}
-static void xtea_decrypt(void *ctx_arg, u8 *dst, const u8 *src)
-{
+static void xtea_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+{
u32 y, z, sum;
- struct tea_ctx *ctx = ctx_arg;
+ struct tea_ctx *ctx = crypto_tfm_ctx(tfm);
const __le32 *in = (const __le32 *)src;
__le32 *out = (__le32 *)dst;
@@ -191,12 +176,11 @@ static void xtea_decrypt(void *ctx_arg, u8 *dst, const u8 *src)
}
-static void xeta_encrypt(void *ctx_arg, u8 *dst, const u8 *src)
-{
+static void xeta_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+{
u32 y, z, sum = 0;
u32 limit = XTEA_DELTA * XTEA_ROUNDS;
-
- struct xtea_ctx *ctx = ctx_arg;
+ struct xtea_ctx *ctx = crypto_tfm_ctx(tfm);
const __le32 *in = (const __le32 *)src;
__le32 *out = (__le32 *)dst;
@@ -213,10 +197,10 @@ static void xeta_encrypt(void *ctx_arg, u8 *dst, const u8 *src)
out[1] = cpu_to_le32(z);
}
-static void xeta_decrypt(void *ctx_arg, u8 *dst, const u8 *src)
-{
+static void xeta_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+{
u32 y, z, sum;
- struct tea_ctx *ctx = ctx_arg;
+ struct tea_ctx *ctx = crypto_tfm_ctx(tfm);
const __le32 *in = (const __le32 *)src;
__le32 *out = (__le32 *)dst;
@@ -235,91 +219,62 @@ static void xeta_decrypt(void *ctx_arg, u8 *dst, const u8 *src)
out[1] = cpu_to_le32(z);
}
-static struct crypto_alg tea_alg = {
+static struct crypto_alg tea_algs[3] = { {
.cra_name = "tea",
.cra_flags = CRYPTO_ALG_TYPE_CIPHER,
.cra_blocksize = TEA_BLOCK_SIZE,
.cra_ctxsize = sizeof (struct tea_ctx),
.cra_alignmask = 3,
.cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(tea_alg.cra_list),
.cra_u = { .cipher = {
.cia_min_keysize = TEA_KEY_SIZE,
.cia_max_keysize = TEA_KEY_SIZE,
.cia_setkey = tea_setkey,
.cia_encrypt = tea_encrypt,
.cia_decrypt = tea_decrypt } }
-};
-
-static struct crypto_alg xtea_alg = {
+}, {
.cra_name = "xtea",
.cra_flags = CRYPTO_ALG_TYPE_CIPHER,
.cra_blocksize = XTEA_BLOCK_SIZE,
.cra_ctxsize = sizeof (struct xtea_ctx),
.cra_alignmask = 3,
.cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(xtea_alg.cra_list),
.cra_u = { .cipher = {
.cia_min_keysize = XTEA_KEY_SIZE,
.cia_max_keysize = XTEA_KEY_SIZE,
.cia_setkey = xtea_setkey,
.cia_encrypt = xtea_encrypt,
.cia_decrypt = xtea_decrypt } }
-};
-
-static struct crypto_alg xeta_alg = {
+}, {
.cra_name = "xeta",
.cra_flags = CRYPTO_ALG_TYPE_CIPHER,
.cra_blocksize = XTEA_BLOCK_SIZE,
.cra_ctxsize = sizeof (struct xtea_ctx),
.cra_alignmask = 3,
.cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(xtea_alg.cra_list),
.cra_u = { .cipher = {
.cia_min_keysize = XTEA_KEY_SIZE,
.cia_max_keysize = XTEA_KEY_SIZE,
.cia_setkey = xtea_setkey,
.cia_encrypt = xeta_encrypt,
.cia_decrypt = xeta_decrypt } }
-};
+} };
-static int __init init(void)
+static int __init tea_mod_init(void)
{
- int ret = 0;
-
- ret = crypto_register_alg(&tea_alg);
- if (ret < 0)
- goto out;
-
- ret = crypto_register_alg(&xtea_alg);
- if (ret < 0) {
- crypto_unregister_alg(&tea_alg);
- goto out;
- }
-
- ret = crypto_register_alg(&xeta_alg);
- if (ret < 0) {
- crypto_unregister_alg(&tea_alg);
- crypto_unregister_alg(&xtea_alg);
- goto out;
- }
-
-out:
- return ret;
+ return crypto_register_algs(tea_algs, ARRAY_SIZE(tea_algs));
}
-static void __exit fini(void)
+static void __exit tea_mod_fini(void)
{
- crypto_unregister_alg(&tea_alg);
- crypto_unregister_alg(&xtea_alg);
- crypto_unregister_alg(&xeta_alg);
+ crypto_unregister_algs(tea_algs, ARRAY_SIZE(tea_algs));
}
MODULE_ALIAS("xtea");
MODULE_ALIAS("xeta");
-module_init(init);
-module_exit(fini);
+module_init(tea_mod_init);
+module_exit(tea_mod_fini);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("TEA, XTEA & XETA Cryptographic Algorithms");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-05 19:51:53 +0000