Index: linux-2.6.18-rc2/crypto/sha1.c
===================================================================
--- linux-2.6.18-rc2.orig/crypto/sha1.c 2006-07-18 01:37:24.523179451 +1200
+++ linux-2.6.18-rc2/crypto/sha1.c 2006-07-18 01:25:10.521307201 +1200
@@ -109,6 +109,7 @@
static struct crypto_alg alg = {
.cra_name = "sha1",
+ .cra_driver_name= "sha1-generic",
.cra_flags = CRYPTO_ALG_TYPE_DIGEST,
.cra_blocksize = SHA1_HMAC_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct sha1_ctx),
@@ -137,3 +138,5 @@
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm");
+
+MODULE_ALIAS("sha1-generic");
Index: linux-2.6.18-rc2/crypto/sha256.c
===================================================================
--- linux-2.6.18-rc2.orig/crypto/sha256.c 2006-07-18 01:37:24.523179451 +1200
+++ linux-2.6.18-rc2/crypto/sha256.c 2006-07-18 01:25:10.525307451 +1200
@@ -309,6 +309,7 @@
static struct crypto_alg alg = {
.cra_name = "sha256",
+ .cra_driver_name= "sha256-generic",
.cra_flags = CRYPTO_ALG_TYPE_DIGEST,
.cra_blocksize = SHA256_HMAC_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct sha256_ctx),
@@ -337,3 +338,5 @@
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("SHA256 Secure Hash Algorithm");
+
+MODULE_ALIAS("sha256-generic");
Index: linux-2.6.18-rc2/drivers/crypto/Kconfig
===================================================================
--- linux-2.6.18-rc2.orig/drivers/crypto/Kconfig 2006-07-18 01:37:24.523179451 +1200
+++ linux-2.6.18-rc2/drivers/crypto/Kconfig 2006-07-18 01:38:58.569056951 +1200
@@ -3,21 +3,50 @@
config CRYPTO_DEV_PADLOCK
tristate "Support for VIA PadLock ACE"
depends on CRYPTO && X86_32
+ default m
help
Some VIA processors come with an integrated crypto engine
(so called VIA PadLock ACE, Advanced Cryptography Engine)
- that provides instructions for very fast {en,de}cryption
- with some algorithms.
+ that provides instructions for very fast cryptographic
+ operations with supported algorithms.
The instructions are used only when the CPU supports them.
- Otherwise software encryption is used. If you are unsure,
- say Y.
+ Otherwise software encryption is used.
+
+ Selecting M for this option will compile a helper module
+ padlock.ko that should autoload all below configured
+ algorithms. Don't worry if your hardware does not support
+ some or all of them. In such case padlock.ko will
+ simply write a single line into the kernel log informing
+ about its failure but everything will keep working fine.
+
+ If you are unsure, say M. The compiled module will be
+ called padlock.ko
config CRYPTO_DEV_PADLOCK_AES
- bool "Support for AES in VIA PadLock"
+ tristate "PadLock driver for AES algorithm"
depends on CRYPTO_DEV_PADLOCK
- default y
+ default m
help
Use VIA PadLock for AES algorithm.
+ Available in VIA C3 and newer CPUs.
+
+ If unsure say M. The compiled module will be
+ called padlock-aes.ko
+
+config CRYPTO_DEV_PADLOCK_SHA
+ tristate "PadLock driver for SHA1 and SHA256 algorithms"
+ depends on CRYPTO_DEV_PADLOCK
+ select CRYPTO_SHA1
+ select CRYPTO_SHA256
+ default m
+ help
+ Use VIA PadLock for SHA1/SHA256 algorithms.
+
+ Available in VIA C7 and newer processors.
+
+ If unsure say M. The compiled module will be
+ called padlock-sha.ko
+
endmenu
Index: linux-2.6.18-rc2/drivers/crypto/Makefile
===================================================================
--- linux-2.6.18-rc2.orig/drivers/crypto/Makefile 2006-07-18 01:37:24.527179701 +1200
+++ linux-2.6.18-rc2/drivers/crypto/Makefile 2006-07-18 01:38:58.573057201 +1200
@@ -1,7 +1,3 @@
-
obj-$(CONFIG_CRYPTO_DEV_PADLOCK) += padlock.o
-
-padlock-objs-$(CONFIG_CRYPTO_DEV_PADLOCK_AES) += padlock-aes.o
-
-padlock-objs := padlock-generic.o $(padlock-objs-y)
-
+obj-$(CONFIG_CRYPTO_DEV_PADLOCK_AES) += padlock-aes.o
+obj-$(CONFIG_CRYPTO_DEV_PADLOCK_SHA) += padlock-sha.o
Index: linux-2.6.18-rc2/drivers/crypto/padlock-aes.c
===================================================================
--- linux-2.6.18-rc2.orig/drivers/crypto/padlock-aes.c 2006-07-18 01:23:23.882642701 +1200
+++ linux-2.6.18-rc2/drivers/crypto/padlock-aes.c 2006-07-18 01:38:58.581057701 +1200
@@ -59,6 +59,17 @@
#define AES_EXTENDED_KEY_SIZE 64 /* in uint32_t units */
#define AES_EXTENDED_KEY_SIZE_B (AES_EXTENDED_KEY_SIZE * sizeof(uint32_t))
+/* Control word. */
+struct cword {
+ unsigned int __attribute__ ((__packed__))
+ rounds:4,
+ algo:3,
+ keygen:1,
+ interm:1,
+ encdec:1,
+ ksize:2;
+} __attribute__ ((__aligned__(PADLOCK_ALIGNMENT)));
+
/* Whenever making any changes to the following
* structure *make sure* you keep E, d_data
* and cword aligned on 16 Bytes boundaries!!! */
@@ -473,7 +484,7 @@
static struct crypto_alg aes_alg = {
.cra_name = "aes",
.cra_driver_name = "aes-padlock",
- .cra_priority = 300,
+ .cra_priority = PADLOCK_CRA_PRIORITY,
.cra_flags = CRYPTO_ALG_TYPE_CIPHER,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct aes_ctx),
@@ -495,15 +506,41 @@
}
};
-int __init padlock_init_aes(void)
+static int __init padlock_init(void)
{
- printk(KERN_NOTICE PFX "Using VIA PadLock ACE for AES algorithm.\n");
+ int ret;
+
+ if (!cpu_has_xcrypt) {
+ printk(KERN_ERR PFX "VIA PadLock not detected.\n");
+ return -ENODEV;
+ }
+
+ if (!cpu_has_xcrypt_enabled) {
+ printk(KERN_ERR PFX "VIA PadLock detected, but not enabled. Hmm, strange...\n");
+ return -ENODEV;
+ }
gen_tabs();
- return crypto_register_alg(&aes_alg);
+ if ((ret = crypto_register_alg(&aes_alg))) {
+ printk(KERN_ERR PFX "VIA PadLock AES initialization failed.\n");
+ return ret;
+ }
+
+ printk(KERN_NOTICE PFX "Using VIA PadLock ACE for AES algorithm.\n");
+
+ return ret;
}
-void __exit padlock_fini_aes(void)
+static void __exit padlock_fini(void)
{
crypto_unregister_alg(&aes_alg);
}
+
+module_init(padlock_init);
+module_exit(padlock_fini);
+
+MODULE_DESCRIPTION("VIA PadLock AES algorithm support");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Michal Ludvig");
+
+MODULE_ALIAS("aes-padlock");
Index: linux-2.6.18-rc2/drivers/crypto/padlock-generic.c
===================================================================
--- linux-2.6.18-rc2.orig/drivers/crypto/padlock-generic.c 2006-07-18 01:37:24.527179701 +1200
+++ /dev/null 1970-01-01 00:00:00.000000000 +0000
@@ -1,63 +0,0 @@
-/*
- * Cryptographic API.
- *
- * Support for VIA PadLock hardware crypto engine.
- *
- * Copyright (c) 2004 Michal Ludvig <michal@logix.cz>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/crypto.h>
-#include <asm/byteorder.h>
-#include "padlock.h"
-
-static int __init
-padlock_init(void)
-{
- int ret = -ENOSYS;
-
- if (!cpu_has_xcrypt) {
- printk(KERN_ERR PFX "VIA PadLock not detected.\n");
- return -ENODEV;
- }
-
- if (!cpu_has_xcrypt_enabled) {
- printk(KERN_ERR PFX "VIA PadLock detected, but not enabled. Hmm, strange...\n");
- return -ENODEV;
- }
-
-#ifdef CONFIG_CRYPTO_DEV_PADLOCK_AES
- if ((ret = padlock_init_aes())) {
- printk(KERN_ERR PFX "VIA PadLock AES initialization failed.\n");
- return ret;
- }
-#endif
-
- if (ret == -ENOSYS)
- printk(KERN_ERR PFX "Hmm, VIA PadLock was compiled without any algorithm.\n");
-
- return ret;
-}
-
-static void __exit
-padlock_fini(void)
-{
-#ifdef CONFIG_CRYPTO_DEV_PADLOCK_AES
- padlock_fini_aes();
-#endif
-}
-
-module_init(padlock_init);
-module_exit(padlock_fini);
-
-MODULE_DESCRIPTION("VIA PadLock crypto engine support.");
-MODULE_LICENSE("Dual BSD/GPL");
-MODULE_AUTHOR("Michal Ludvig");
Index: linux-2.6.18-rc2/drivers/crypto/padlock-sha.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.18-rc2/drivers/crypto/padlock-sha.c 2006-07-18 01:27:05.292479951 +1200
@@ -0,0 +1,339 @@
+/*
+ * Cryptographic API.
+ *
+ * Support for VIA PadLock hardware crypto engine.
+ *
+ * Copyright (c) 2006 Michal Ludvig <michal@logix.cz>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/crypto.h>
+#include <linux/cryptohash.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/scatterlist.h>
+#include "padlock.h"
+
+#define SHA1_DEFAULT_FALLBACK "sha1-generic"
+#define SHA1_DIGEST_SIZE 20
+#define SHA1_HMAC_BLOCK_SIZE 64
+
+#define SHA256_DEFAULT_FALLBACK "sha256-generic"
+#define SHA256_DIGEST_SIZE 32
+#define SHA256_HMAC_BLOCK_SIZE 64
+
+static char *sha1_fallback = SHA1_DEFAULT_FALLBACK;
+static char *sha256_fallback = SHA256_DEFAULT_FALLBACK;
+
+module_param(sha1_fallback, charp, 0644);
+module_param(sha256_fallback, charp, 0644);
+
+MODULE_PARM_DESC(sha1_fallback, "Fallback driver for SHA1. Default is "
+ SHA1_DEFAULT_FALLBACK);
+MODULE_PARM_DESC(sha256_fallback, "Fallback driver for SHA256. Default is "
+ SHA256_DEFAULT_FALLBACK);
+
+struct padlock_sha_ctx {
+ char *data;
+ size_t used;
+ int bypass;
+ void (*f_sha_padlock)(const char *in, char *out, int count);
+ struct crypto_tfm *fallback_tfm;
+};
+
+static inline struct padlock_sha_ctx *ctx(struct crypto_tfm *tfm)
+{
+ return (struct padlock_sha_ctx *)(crypto_tfm_ctx(tfm));
+}
+
+/* We'll need aligned address on the stack */
+#define NEAREST_ALIGNED(ptr) \
+ ((void *)ALIGN((size_t)(ptr), PADLOCK_ALIGNMENT))
+
+static struct crypto_alg sha1_alg, sha256_alg;
+
+static void padlock_sha_bypass(struct crypto_tfm *tfm)
+{
+ if (ctx(tfm)->bypass)
+ return;
+
+ BUG_ON(!ctx(tfm)->fallback_tfm);
+
+ crypto_digest_init(ctx(tfm)->fallback_tfm);
+ if (ctx(tfm)->data && ctx(tfm)->used) {
+ struct scatterlist sg;
+
+ sg_set_buf(&sg, ctx(tfm)->data, ctx(tfm)->used);
+ crypto_digest_update(ctx(tfm)->fallback_tfm, &sg, 1);
+ }
+
+ ctx(tfm)->used = 0;
+ ctx(tfm)->bypass = 1;
+}
+
+static void padlock_sha_init(struct crypto_tfm *tfm)
+{
+ ctx(tfm)->used = 0;
+ ctx(tfm)->bypass = 0;
+}
+
+static void padlock_sha_update(struct crypto_tfm *tfm,
+ const uint8_t *data, unsigned int length)
+{
+ /* Our buffer is always one page. */
+ if (unlikely(!ctx(tfm)->bypass &&
+ (ctx(tfm)->used + length > PAGE_SIZE)))
+ padlock_sha_bypass(tfm);
+
+ if (unlikely(ctx(tfm)->bypass)) {
+ struct scatterlist sg;
+ BUG_ON(!ctx(tfm)->fallback_tfm);
+ sg_set_buf(&sg, (uint8_t *)data, length);
+ crypto_digest_update(ctx(tfm)->fallback_tfm, &sg, 1);
+ return;
+ }
+
+ memcpy(ctx(tfm)->data + ctx(tfm)->used, data, length);
+ ctx(tfm)->used += length;
+}
+
+static inline void padlock_output_block(uint32_t *src,
+ uint32_t *dst, size_t count)
+{
+ while (count--)
+ *dst++ = swab32(*src++);
+}
+
+void padlock_do_sha1(const char *in, char *out, int count)
+{
+ /* We can't store directly to *out as it may be unaligned. */
+ /* BTW Don't reduce the buffer size below 128 Bytes!
+ * PadLock microcode needs it that big. */
+ char buf[128+16];
+ char *result = NEAREST_ALIGNED(buf);
+
+ ((uint32_t *)result)[0] = 0x67452301;
+ ((uint32_t *)result)[1] = 0xEFCDAB89;
+ ((uint32_t *)result)[2] = 0x98BADCFE;
+ ((uint32_t *)result)[3] = 0x10325476;
+ ((uint32_t *)result)[4] = 0xC3D2E1F0;
+
+ asm volatile (".byte 0xf3,0x0f,0xa6,0xc8" /* rep xsha1 */
+ : "+S"(in), "+D"(result)
+ : "c"(count), "a"(0));
+
+ padlock_output_block((uint32_t *)result, (uint32_t *)out, 5);
+}
+
+void padlock_do_sha256(const char *in, char *out, int count)
+{
+ /* We can't store directly to *out as it may be unaligned. */
+ /* BTW Don't reduce the buffer size below 128 Bytes!
+ * PadLock microcode needs it that big. */
+ char buf[128+16];
+ char *result = NEAREST_ALIGNED(buf);
+
+ ((uint32_t *)result)[0] = 0x6A09E667;
+ ((uint32_t *)result)[1] = 0xBB67AE85;
+ ((uint32_t *)result)[2] = 0x3C6EF372;
+ ((uint32_t *)result)[3] = 0xA54FF53A;
+ ((uint32_t *)result)[4] = 0x510E527F;
+ ((uint32_t *)result)[5] = 0x9B05688C;
+ ((uint32_t *)result)[6] = 0x1F83D9AB;
+ ((uint32_t *)result)[7] = 0x5BE0CD19;
+
+ asm volatile (".byte 0xf3,0x0f,0xa6,0xd0" /* rep xsha256 */
+ : "+S"(in), "+D"(result)
+ : "c"(count), "a"(0));
+
+ padlock_output_block((uint32_t *)result, (uint32_t *)out, 8);
+}
+
+static void padlock_sha_final(struct crypto_tfm *tfm, uint8_t *out)
+{
+ if (unlikely(ctx(tfm)->bypass)) {
+ BUG_ON(!ctx(tfm)->fallback_tfm);
+ crypto_digest_final(ctx(tfm)->fallback_tfm, out);
+ ctx(tfm)->bypass = 0;
+ return;
+ }
+
+ /* Pass the input buffer to PadLock microcode... */
+ ctx(tfm)->f_sha_padlock(ctx(tfm)->data, out, ctx(tfm)->used);
+
+ ctx(tfm)->used = 0;
+}
+
+static int padlock_cra_init(struct crypto_tfm *tfm, const char *fallback_driver_name)
+{
+ /* For now we'll allocate one page. This
+ * could eventually be configurable one day. */
+ ctx(tfm)->data = (char *)__get_free_page(GFP_KERNEL);
+ if (!ctx(tfm)->data)
+ return -ENOMEM;
+
+ /* Allocate a fallback and abort if it failed. */
+ ctx(tfm)->fallback_tfm = crypto_alloc_tfm(fallback_driver_name, 0);
+ if (!ctx(tfm)->fallback_tfm) {
+ printk(KERN_WARNING PFX "Fallback driver '%s' could not be loaded!\n",
+ fallback_driver_name);
+ free_page((unsigned long)(ctx(tfm)->data));
+ return -ENOENT;
+ }
+
+ return 0;
+}
+
+static int padlock_sha1_cra_init(struct crypto_tfm *tfm)
+{
+ ctx(tfm)->f_sha_padlock = padlock_do_sha1;
+
+ return padlock_cra_init(tfm, sha1_fallback);
+}
+
+static int padlock_sha256_cra_init(struct crypto_tfm *tfm)
+{
+ ctx(tfm)->f_sha_padlock = padlock_do_sha256;
+
+ return padlock_cra_init(tfm, sha256_fallback);
+}
+
+static void padlock_cra_exit(struct crypto_tfm *tfm)
+{
+ if (ctx(tfm)->data) {
+ free_page((unsigned long)(ctx(tfm)->data));
+ ctx(tfm)->data = NULL;
+ }
+
+ BUG_ON(!ctx(tfm)->fallback_tfm);
+ crypto_free_tfm(ctx(tfm)->fallback_tfm);
+ ctx(tfm)->fallback_tfm = NULL;
+}
+
+static struct crypto_alg sha1_alg = {
+ .cra_name = "sha1",
+ .cra_driver_name = "sha1-padlock",
+ .cra_priority = PADLOCK_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_TYPE_DIGEST,
+ .cra_blocksize = SHA1_HMAC_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct padlock_sha_ctx),
+ .cra_module = THIS_MODULE,
+ .cra_list = LIST_HEAD_INIT(sha1_alg.cra_list),
+ .cra_init = padlock_sha1_cra_init,
+ .cra_exit = padlock_cra_exit,
+ .cra_u = {
+ .digest = {
+ .dia_digestsize = SHA1_DIGEST_SIZE,
+ .dia_init = padlock_sha_init,
+ .dia_update = padlock_sha_update,
+ .dia_final = padlock_sha_final,
+ }
+ }
+};
+
+static struct crypto_alg sha256_alg = {
+ .cra_name = "sha256",
+ .cra_driver_name = "sha256-padlock",
+ .cra_priority = PADLOCK_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_TYPE_DIGEST,
+ .cra_blocksize = SHA256_HMAC_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct padlock_sha_ctx),
+ .cra_module = THIS_MODULE,
+ .cra_list = LIST_HEAD_INIT(sha256_alg.cra_list),
+ .cra_init = padlock_sha256_cra_init,
+ .cra_exit = padlock_cra_exit,
+ .cra_u = {
+ .digest = {
+ .dia_digestsize = SHA256_DIGEST_SIZE,
+ .dia_init = padlock_sha_init,
+ .dia_update = padlock_sha_update,
+ .dia_final = padlock_sha_final,
+ }
+ }
+};
+
+static void __init padlock_sha_check_fallbacks(void)
+{
+ static struct crypto_tfm *tfm_sha1, *tfm_sha256;
+
+ /* We'll try to allocate one TFM for each fallback
+ * to test that the modules are available. */
+ tfm_sha1 = crypto_alloc_tfm(sha1_fallback, 0);
+ if (!tfm_sha1) {
+ printk(KERN_WARNING PFX "Couldn't load fallback module for '%s'. Tried '%s'.\n",
+ sha1_alg.cra_name, sha1_fallback);
+ } else {
+ printk(KERN_NOTICE PFX "Fallback for '%s' is driver '%s' (prio=%d)\n", sha1_alg.cra_name,
+ crypto_tfm_alg_driver_name(tfm_sha1), crypto_tfm_alg_priority(tfm_sha1));
+ crypto_free_tfm(tfm_sha1);
+ }
+
+ tfm_sha256 = crypto_alloc_tfm(sha256_fallback, 0);
+ if (!tfm_sha256) {
+ printk(KERN_WARNING PFX "Couldn't load fallback module for '%s'. Tried '%s'.\n",
+ sha256_alg.cra_name, sha256_fallback);
+ } else {
+ printk(KERN_NOTICE PFX "Fallback for '%s' is driver '%s' (prio=%d)\n", sha256_alg.cra_name,
+ crypto_tfm_alg_driver_name(tfm_sha256), crypto_tfm_alg_priority(tfm_sha256));
+ crypto_free_tfm(tfm_sha256);
+ }
+}
+
+static int __init padlock_init(void)
+{
+ int rc = -ENODEV;
+
+ if (!cpu_has_phe) {
+ printk(KERN_ERR PFX "VIA PadLock Hash Engine not detected.\n");
+ return -ENODEV;
+ }
+
+ if (!cpu_has_phe_enabled) {
+ printk(KERN_ERR PFX "VIA PadLock detected, but not enabled. Hmm, strange...\n");
+ return -ENODEV;
+ }
+
+ padlock_sha_check_fallbacks();
+
+ rc = crypto_register_alg(&sha1_alg);
+ if (rc)
+ goto out;
+
+ rc = crypto_register_alg(&sha256_alg);
+ if (rc)
+ goto out_unreg1;
+
+ printk(KERN_NOTICE PFX "Using VIA PadLock ACE for SHA1/SHA256 algorithms.\n");
+
+ return 0;
+
+out_unreg1:
+ crypto_unregister_alg(&sha1_alg);
+out:
+ printk(KERN_ERR PFX "VIA PadLock SHA1/SHA256 initialization failed.\n");
+ return rc;
+}
+
+static void __exit padlock_fini(void)
+{
+ crypto_unregister_alg(&sha1_alg);
+ crypto_unregister_alg(&sha256_alg);
+}
+
+module_init(padlock_init);
+module_exit(padlock_fini);
+
+MODULE_DESCRIPTION("VIA PadLock SHA1/SHA256 algorithms support.");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Michal Ludvig");
+
+MODULE_ALIAS("sha1-padlock");
+MODULE_ALIAS("sha256-padlock");
Index: linux-2.6.18-rc2/drivers/crypto/padlock.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.18-rc2/drivers/crypto/padlock.c 2006-07-18 01:38:58.581057701 +1200
@@ -0,0 +1,58 @@
+/*
+ * Cryptographic API.
+ *
+ * Support for VIA PadLock hardware crypto engine.
+ *
+ * Copyright (c) 2006 Michal Ludvig <michal@logix.cz>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/crypto.h>
+#include <linux/cryptohash.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/scatterlist.h>
+#include "padlock.h"
+
+static int __init padlock_init(void)
+{
+ int success = 0;
+
+ if (crypto_alg_available("aes-padlock", 0))
+ success++;
+
+ if (crypto_alg_available("sha1-padlock", 0))
+ success++;
+
+ if (crypto_alg_available("sha256-padlock", 0))
+ success++;
+
+ if (!success) {
+ printk(KERN_WARNING PFX "No VIA PadLock drivers have been loaded.\n");
+ return -ENODEV;
+ }
+
+ printk(KERN_NOTICE PFX "%d drivers are available.\n", success);
+
+ return 0;
+}
+
+static void __exit padlock_fini(void)
+{
+}
+
+module_init(padlock_init);
+module_exit(padlock_fini);
+
+MODULE_DESCRIPTION("Load all configured PadLock algorithms.");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Michal Ludvig");
+
Index: linux-2.6.18-rc2/drivers/crypto/padlock.h
===================================================================
--- linux-2.6.18-rc2.orig/drivers/crypto/padlock.h 2006-07-18 01:37:24.531179951 +1200
+++ linux-2.6.18-rc2/drivers/crypto/padlock.h 2006-07-18 01:25:10.549308951 +1200
@@ -15,22 +15,8 @@
#define PADLOCK_ALIGNMENT 16
-/* Control word. */
-struct cword {
- unsigned int __attribute__ ((__packed__))
- rounds:4,
- algo:3,
- keygen:1,
- interm:1,
- encdec:1,
- ksize:2;
-} __attribute__ ((__aligned__(PADLOCK_ALIGNMENT)));
-
#define PFX "padlock: "
-#ifdef CONFIG_CRYPTO_DEV_PADLOCK_AES
-int padlock_init_aes(void);
-void padlock_fini_aes(void);
-#endif
+#define PADLOCK_CRA_PRIORITY 300
#endif /* _CRYPTO_PADLOCK_H */
Index: linux-2.6.18-rc2/include/linux/crypto.h
===================================================================
--- linux-2.6.18-rc2.orig/include/linux/crypto.h 2006-07-18 01:37:24.531179951 +1200
+++ linux-2.6.18-rc2/include/linux/crypto.h 2006-07-18 01:25:10.553309201 +1200
@@ -258,6 +258,16 @@
return tfm->__crt_alg->cra_name;
}
+static inline const char *crypto_tfm_alg_driver_name(struct crypto_tfm *tfm)
+{
+ return tfm->__crt_alg->cra_driver_name;
+}
+
+static inline int crypto_tfm_alg_priority(struct crypto_tfm *tfm)
+{
+ return tfm->__crt_alg->cra_priority;
+}
+
static inline const char *crypto_tfm_alg_modname(struct crypto_tfm *tfm)
{
return module_name(tfm->__crt_alg->cra_module);