OpenSSL 1.0.x

1 files changed, 1311 insertions, 0 deletions

diff --git a/openssl1.0.0/engines/devcrypto/e_devcrypto.c b/openssl1.0.0/engines/devcrypto/e_devcrypto.c
new file mode 100644
index 0000000..67bd085
--- /dev/null
+++ b/openssl1.0.0/engines/devcrypto/e_devcrypto.c
@@ -0,0 +1,1311 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ *
+ * Copyright (c) 2010, 2011, Oracle and/or its affiliates. All rights reserved.
+ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <string.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <errno.h>
+#include <cryptoutil.h>
+#include <sys/crypto/ioctl.h>
+#include <sys/crypto/api.h>
+#include <openssl/bio.h>
+#include <openssl/aes.h>
+#include <openssl/engine.h>
+#include <security/cryptoki.h>
+
+#define	DEVCRYPTO_LIB_NAME "devcrypto engine"
+#include "e_devcrypto_err.c"
+
+/* DEVCRYPTO CONTEXT */
+typedef struct devcrypto_ctx {
+	uint_t session_id;
+} devcrypto_ctx_t;
+
+/* Index for the supported ciphers */
+typedef enum {
+	DEV_DES_CBC,
+	DEV_DES3_CBC,
+	DEV_DES_ECB,
+	DEV_DES3_ECB,
+	DEV_RC4,
+	DEV_AES_128_CBC,
+	DEV_AES_192_CBC,
+	DEV_AES_256_CBC,
+	DEV_AES_128_ECB,
+	DEV_AES_192_ECB,
+	DEV_AES_256_ECB,
+	DEV_BLOWFISH_CBC,
+#ifdef	SOLARIS_AES_CTR
+	DEV_AES_128_CTR,
+	DEV_AES_192_CTR,
+	DEV_AES_256_CTR,
+#endif	/* SOLARIS_AES_CTR */
+	DEV_CIPHER_MAX
+} DEV_CIPHER_ID;
+
+typedef struct devcrypto_cipher {
+	DEV_CIPHER_ID		id;
+	int			nid;
+	int			iv_len;
+	int			min_key_len;
+	int			max_key_len;
+	CK_KEY_TYPE		key_type;
+	CK_MECHANISM_TYPE	mech_type;
+	unsigned long		flags;
+	crypto_mech_type_t	pn_internal_number;
+} devcrypto_cipher_t;
+
+
+/* Constants used when creating the ENGINE */
+static const char *ENGINE_DEVCRYPTO_ID = "devcrypto";
+static const char *ENGINE_DEVCRYPTO_NAME = "/dev/crypto engine support";
+static const char *CRYPTO_DEVICE = "/dev/crypto";
+
+/* static variables */
+static int kernel_fd = -1;
+static int kernel_fd_ref = 0;
+static int slot_count = 0;
+static CK_SLOT_ID *kernel_provider_id = NULL;
+static int cipher_count = 0;
+static int *cipher_nids = NULL;
+pthread_mutex_t *kernel_fd_lock;
+
+#ifdef	SOLARIS_AES_CTR
+/*
+ * NIDs for AES counter mode. They will be defined during the engine
+ * initialization.
+ */
+static int NID_aes_128_ctr = NID_undef;
+static int NID_aes_192_ctr = NID_undef;
+static int NID_aes_256_ctr = NID_undef;
+#endif	/* SOLARIS_AES_CTR */
+
+/*
+ * Cipher Table for all supported symmetric ciphers.
+ */
+static devcrypto_cipher_t cipher_table[] = {
+	/* id,			nid,		iv_len, min_, max_key_len, */
+		/* key_type,	mech_type, flags, pn_internal_number */
+	{ DEV_DES_CBC,		NID_des_cbc,		8,	 8,   8,
+		CKK_DES,	CKM_DES_CBC, 0, CRYPTO_MECH_INVALID},
+	{ DEV_DES3_CBC,		NID_des_ede3_cbc,	8,	24,  24,
+		CKK_DES3,	CKM_DES3_CBC, 0, CRYPTO_MECH_INVALID},
+	{ DEV_DES_ECB,		NID_des_ecb,		0,	 8,   8,
+		CKK_DES,	CKM_DES_ECB, 0, CRYPTO_MECH_INVALID},
+	{ DEV_DES3_ECB,		NID_des_ede3_ecb,	0,	24,  24,
+		CKK_DES3,	CKM_DES3_ECB, 0, CRYPTO_MECH_INVALID},
+	{ DEV_RC4,		NID_rc4,		0,	16, 256,
+		CKK_RC4,	CKM_RC4, 0, CRYPTO_MECH_INVALID},
+	{ DEV_AES_128_CBC,	NID_aes_128_cbc,	16,	16,  16,
+		CKK_AES,	CKM_AES_CBC, 0, CRYPTO_MECH_INVALID},
+	{ DEV_AES_192_CBC,	NID_aes_192_cbc,	16,	24,  24,
+		CKK_AES,	CKM_AES_CBC, 0, CRYPTO_MECH_INVALID},
+	{ DEV_AES_256_CBC,	NID_aes_256_cbc,	16,	32,  32,
+		CKK_AES,	CKM_AES_CBC, 0, CRYPTO_MECH_INVALID},
+	{ DEV_AES_128_ECB,	NID_aes_128_ecb,	0,	16,  16,
+		CKK_AES,	CKM_AES_ECB, 0, CRYPTO_MECH_INVALID},
+	{ DEV_AES_192_ECB,	NID_aes_192_ecb,	0,	24,  24,
+		CKK_AES,	CKM_AES_ECB, 0, CRYPTO_MECH_INVALID},
+	{ DEV_AES_256_ECB,	NID_aes_256_ecb,	0,	32,  32,
+		CKK_AES,	CKM_AES_ECB, 0, CRYPTO_MECH_INVALID},
+	{ DEV_BLOWFISH_CBC,	NID_bf_cbc,		8,	16,  16,
+		CKK_BLOWFISH,	CKM_BLOWFISH_CBC, 0, CRYPTO_MECH_INVALID},
+#ifdef	SOLARIS_AES_CTR
+	/*
+	 * For the following 3 AES counter mode entries, we don't know the
+	 * NIDs until the engine is initialized
+	 */
+	{ DEV_AES_128_CTR,	NID_undef,		16,	16,  16,
+		CKK_AES,	CKM_AES_CTR, EVP_CIPH_NO_PADDING,
+		CRYPTO_MECH_INVALID},
+	{ DEV_AES_192_CTR,	NID_undef,		16,	24,  24,
+		CKK_AES,	CKM_AES_CTR, EVP_CIPH_NO_PADDING,
+		CRYPTO_MECH_INVALID},
+	{ DEV_AES_256_CTR,	NID_undef,		16,	32,  32,
+		CKK_AES,	CKM_AES_CTR, EVP_CIPH_NO_PADDING,
+		CRYPTO_MECH_INVALID},
+#endif	/* SOLARIS_AES_CTR */
+	};
+
+
+/* Formal declaration for functions in EVP_CIPHER structure */
+static int devcrypto_cipher_init(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+    const unsigned char *iv, int enc);
+static int devcrypto_cipher_do_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+    const unsigned char *in, size_t inl);
+static int devcrypto_cipher_cleanup(EVP_CIPHER_CTX *ctx);
+
+/*
+ * Cipher Algorithms
+ *
+ * OpenSSL's libcrypto EVP stuff. This is how this engine gets wired to EVP.
+ * EVP_CIPHER is defined in evp.h.  To maintain binary compatibility the
+ * definition cannot be modified.
+ * Stuff specific to the devcrypto engine is kept in devcrypto_ctx_t, which is
+ * pointed to by cipher_data or md_data.
+ *
+ * Fields: nid, block_size, key_len, iv_len, flags,
+ *	init(), do_cipher(), cleanup(),
+ *	ctx_size,
+ *	set_asn1_parameters(), get_asn1_parameters(), ctrl(), app_data
+ */
+static const EVP_CIPHER dev_des_cbc = {
+	NID_des_cbc,
+	8, 8, 8,
+	EVP_CIPH_CBC_MODE,
+	devcrypto_cipher_init,
+	devcrypto_cipher_do_cipher,
+	devcrypto_cipher_cleanup,
+	sizeof (devcrypto_ctx_t),
+	EVP_CIPHER_set_asn1_iv,
+	EVP_CIPHER_get_asn1_iv,
+	NULL
+};
+
+static const EVP_CIPHER dev_3des_cbc = {
+	NID_des_ede3_cbc,
+	8, 24, 8,
+	EVP_CIPH_CBC_MODE,
+	devcrypto_cipher_init,
+	devcrypto_cipher_do_cipher,
+	devcrypto_cipher_cleanup,
+	sizeof (devcrypto_ctx_t),
+	EVP_CIPHER_set_asn1_iv,
+	EVP_CIPHER_get_asn1_iv,
+	NULL
+};
+
+/*
+ * ECB modes don't use an Initial Vector, therefore set_asn1_parameters and
+ * get_asn1_parameters fields are set to NULL.
+ */
+static const EVP_CIPHER dev_des_ecb = {
+	NID_des_ecb,
+	8, 8, 8,
+	EVP_CIPH_ECB_MODE,
+	devcrypto_cipher_init,
+	devcrypto_cipher_do_cipher,
+	devcrypto_cipher_cleanup,
+	sizeof (devcrypto_ctx_t),
+	NULL,
+	NULL,
+	NULL
+};
+
+static const EVP_CIPHER dev_3des_ecb = {
+	NID_des_ede3_ecb,
+	8, 24, 8,
+	EVP_CIPH_ECB_MODE,
+	devcrypto_cipher_init,
+	devcrypto_cipher_do_cipher,
+	devcrypto_cipher_cleanup,
+	sizeof (devcrypto_ctx_t),
+	NULL,
+	NULL,
+	NULL
+};
+
+static const EVP_CIPHER dev_rc4 = {
+	NID_rc4,
+	1, 16, 0,
+	EVP_CIPH_VARIABLE_LENGTH,
+	devcrypto_cipher_init,
+	devcrypto_cipher_do_cipher,
+	devcrypto_cipher_cleanup,
+	sizeof (devcrypto_ctx_t),
+	NULL,
+	NULL,
+	NULL
+};
+
+static const EVP_CIPHER dev_aes_128_cbc = {
+	NID_aes_128_cbc,
+	16, 16, 16,
+	EVP_CIPH_CBC_MODE,
+	devcrypto_cipher_init,
+	devcrypto_cipher_do_cipher,
+	devcrypto_cipher_cleanup,
+	sizeof (devcrypto_ctx_t),
+	EVP_CIPHER_set_asn1_iv,
+	EVP_CIPHER_get_asn1_iv,
+	NULL
+};
+
+static const EVP_CIPHER dev_aes_192_cbc = {
+	NID_aes_192_cbc,
+	16, 24, 16,
+	EVP_CIPH_CBC_MODE,
+	devcrypto_cipher_init,
+	devcrypto_cipher_do_cipher,
+	devcrypto_cipher_cleanup,
+	sizeof (devcrypto_ctx_t),
+	EVP_CIPHER_set_asn1_iv,
+	EVP_CIPHER_get_asn1_iv,
+	NULL
+};
+
+static const EVP_CIPHER dev_aes_256_cbc = {
+	NID_aes_256_cbc,
+	16, 32, 16,
+	EVP_CIPH_CBC_MODE,
+	devcrypto_cipher_init,
+	devcrypto_cipher_do_cipher,
+	devcrypto_cipher_cleanup,
+	sizeof (devcrypto_ctx_t),
+	EVP_CIPHER_set_asn1_iv,
+	EVP_CIPHER_get_asn1_iv,
+	NULL
+};
+
+
+/*
+ * ECB modes don't use IV, therefore set_asn1_parameters and
+ * get_asn1_parameters are set to NULL.
+ */
+static const EVP_CIPHER dev_aes_128_ecb = {
+	NID_aes_128_ecb,
+	16, 16, 0,
+	EVP_CIPH_ECB_MODE,
+	devcrypto_cipher_init,
+	devcrypto_cipher_do_cipher,
+	devcrypto_cipher_cleanup,
+	sizeof (devcrypto_ctx_t),
+	NULL,
+	NULL,
+	NULL
+};
+
+static const EVP_CIPHER dev_aes_192_ecb = {
+	NID_aes_192_ecb,
+	16, 24, 0,
+	EVP_CIPH_ECB_MODE,
+	devcrypto_cipher_init,
+	devcrypto_cipher_do_cipher,
+	devcrypto_cipher_cleanup,
+	sizeof (devcrypto_ctx_t),
+	NULL,
+	NULL,
+	NULL
+};
+
+static const EVP_CIPHER dev_aes_256_ecb = {
+	NID_aes_256_ecb,
+	16, 32, 0,
+	EVP_CIPH_ECB_MODE,
+	devcrypto_cipher_init,
+	devcrypto_cipher_do_cipher,
+	devcrypto_cipher_cleanup,
+	sizeof (devcrypto_ctx_t),
+	NULL,
+	NULL,
+	NULL
+};
+
+static const EVP_CIPHER dev_bf_cbc = {
+	NID_bf_cbc,
+	8, 16, 8,
+	EVP_CIPH_VARIABLE_LENGTH,
+	devcrypto_cipher_init,
+	devcrypto_cipher_do_cipher,
+	devcrypto_cipher_cleanup,
+	sizeof (devcrypto_ctx_t),
+	EVP_CIPHER_set_asn1_iv,
+	EVP_CIPHER_get_asn1_iv,
+	NULL
+};
+
+#ifdef	SOLARIS_AES_CTR
+
+/*
+ * NID_undef's will be changed for AES counter mode, as soon they are created.
+ */
+static EVP_CIPHER dev_aes_128_ctr = {
+	NID_undef,
+	16, 16, 16,
+	EVP_CIPH_CBC_MODE,
+	devcrypto_cipher_init,
+	devcrypto_cipher_do_cipher,
+	devcrypto_cipher_cleanup,
+	sizeof (devcrypto_ctx_t),
+	EVP_CIPHER_set_asn1_iv,
+	EVP_CIPHER_get_asn1_iv,
+	NULL
+};
+
+static EVP_CIPHER dev_aes_192_ctr = {
+	NID_undef,
+	16, 24, 16,
+	EVP_CIPH_CBC_MODE,
+	devcrypto_cipher_init,
+	devcrypto_cipher_do_cipher,
+	devcrypto_cipher_cleanup,
+	sizeof (devcrypto_ctx_t),
+	EVP_CIPHER_set_asn1_iv,
+	EVP_CIPHER_get_asn1_iv,
+	NULL
+};
+
+static EVP_CIPHER dev_aes_256_ctr = {
+	NID_undef,
+	16, 32, 16,
+	EVP_CIPH_CBC_MODE,
+	devcrypto_cipher_init,
+	devcrypto_cipher_do_cipher,
+	devcrypto_cipher_cleanup,
+	sizeof (devcrypto_ctx_t),
+	EVP_CIPHER_set_asn1_iv,
+	EVP_CIPHER_get_asn1_iv,
+	NULL
+};
+
+#endif	/* SOLARIS_AES_CTR */
+
+
+/*
+ * This function creates a new NID.
+ */
+static int
+devcrypto_add_NID(char *sn, char *ln)
+{
+	ASN1_OBJECT *o;
+	int nid;
+
+	if ((o = ASN1_OBJECT_create(OBJ_new_nid(1), (unsigned char *)"",
+	    1, sn, ln)) == NULL) {
+		return (0);
+	}
+
+	nid = OBJ_add_object(o); /* will return NID_undef on error */
+	ASN1_OBJECT_free(o);
+	return (nid);
+}
+
+#ifdef	SOLARIS_AES_CTR
+/*
+ * This function creates new NIDs for AES counter mode algorithms.
+ * Note that OpenSSL doesn't support them now so we have to help
+ * ourselves here.
+ */
+static int
+devcrypto_add_aes_ctr_NIDs(void)
+{
+	if (NID_aes_256_ctr != NID_undef) /* already set */
+		return (1);
+
+	NID_aes_128_ctr = devcrypto_add_NID("AES-128-CTR", "aes-128-ctr");
+	if (NID_aes_128_ctr == NID_undef)
+		goto failed;
+	cipher_table[DEV_AES_128_CTR].nid =
+	    dev_aes_128_ctr.nid = NID_aes_128_ctr;
+
+	NID_aes_192_ctr = devcrypto_add_NID("AES-192-CTR", "aes-192-ctr");
+	if (NID_aes_192_ctr == NID_undef)
+		goto failed;
+	cipher_table[DEV_AES_192_CTR].nid =
+	    dev_aes_192_ctr.nid = NID_aes_192_ctr;
+
+	NID_aes_256_ctr = devcrypto_add_NID("AES-256-CTR", "aes-256-ctr");
+	if (NID_aes_256_ctr == NID_undef)
+		goto failed;
+	cipher_table[DEV_AES_256_CTR].nid =
+	    dev_aes_256_ctr.nid = NID_aes_256_ctr;
+
+	return (1);
+
+failed:
+	return (0);
+}
+
+
+static void
+devcrypto_free_aes_ctr_NIDs(void)
+{
+	ASN1_OBJECT *ob = NULL;
+
+	if (NID_aes_128_ctr != NID_undef) {
+		ob = OBJ_nid2obj(NID_aes_128_ctr);
+		if (ob != NULL)
+			ASN1_OBJECT_free(ob);
+	}
+
+	if (NID_aes_192_ctr != NID_undef) {
+		ob = OBJ_nid2obj(NID_aes_192_ctr);
+		if (ob != NULL)
+			ASN1_OBJECT_free(ob);
+	}
+
+	if (NID_aes_256_ctr != NID_undef) {
+		ob = OBJ_nid2obj(NID_aes_256_ctr);
+		if (ob != NULL)
+		ASN1_OBJECT_free(ob);
+	}
+}
+
+#endif	/* SOLARIS_AES_CTR */
+
+/*
+ * Open the /dev/crypto device
+ */
+static int
+devcrypto_open(void)
+{
+	int fd = -1;
+
+	if (kernel_fd != -1) {  /* already open */
+		(void) pthread_mutex_lock(kernel_fd_lock);
+		kernel_fd_ref++;
+		(void) pthread_mutex_unlock(kernel_fd_lock);
+		return (1);
+	}
+
+	(void) pthread_mutex_lock(kernel_fd_lock);
+	fd = open(CRYPTO_DEVICE, O_RDWR);
+	if (fd == -1) {
+#ifdef DEBUG
+		(void) fprintf(stderr,
+		    "libdevcrypto: open /dev/crypto failed, errno=%x\n",
+		    errno);
+#endif
+		(void) pthread_mutex_unlock(kernel_fd_lock);
+		return (0);
+	}
+
+	if (fcntl(fd, F_SETFD, FD_CLOEXEC) != 0) {
+#ifdef DEBUG
+		(void) fprintf(stderr, "libdevcrypto: failed to fcntl\n");
+#endif
+		(void) close(fd);
+		(void) pthread_mutex_unlock(kernel_fd_lock);
+		return (0);
+	}
+
+	kernel_fd = fd;
+	kernel_fd_ref++;
+	(void) pthread_mutex_unlock(kernel_fd_lock);
+	return (1);
+}
+
+
+/*
+ * This function gets the total number of hardware providers presented in
+ * the system first.  If there is any hardware providers, then it will get
+ * the kernel provider id for each hardware slot also.
+ */
+static int
+devcrypto_get_slot_info(void)
+{
+	crypto_get_provider_list_t *pl = NULL;
+	int ret = 1;
+	int r;
+	int i;
+
+	/* Already have the information */
+	if (kernel_provider_id != NULL)
+		return (1);
+
+	/* Find out how many hardware slots are presented. */
+	pl = OPENSSL_malloc(sizeof (crypto_get_provider_list_t));
+	if (pl == NULL)
+		return (0);
+
+	pl->pl_count = 0;
+	while ((r = ioctl(kernel_fd, CRYPTO_GET_PROVIDER_LIST, pl)) < 0) {
+		if (errno != EINTR)
+			break;
+	}
+	if (r < 0 || pl->pl_return_value != CRYPTO_SUCCESS) {
+#ifdef DEBUG
+		(void) fprintf(stderr, "libdevcrypto:CRYPTO_GET_PROVIDER_LIST:"
+		    "ret (r) = 0x%x, (rv) = 0x%x\n", r,  pl->pl_return_value);
+#endif /* DEBUG */
+		ret = 0;
+		goto out;
+	}
+
+	slot_count = pl->pl_count;
+	if (slot_count == 0) {
+#ifdef DEBUG
+		(void) fprintf(stderr, "libdevcrypto: no hw providers\n");
+#endif /* DEBUG */
+		ret = 0;
+		goto out;
+	}
+
+	/* Get the provider ID for each slot from kernel and save it */
+	kernel_provider_id = OPENSSL_malloc(sizeof (CK_SLOT_ID) * slot_count);
+	if (kernel_provider_id == NULL) {
+		ret = 0;
+		goto out;
+	}
+
+	(void) OPENSSL_free(pl);
+	pl = OPENSSL_malloc(slot_count * sizeof (crypto_get_provider_list_t));
+	if (pl == NULL) {
+		ret = 0;
+		goto out;
+	}
+
+	pl->pl_count = slot_count;
+	while ((r = ioctl(kernel_fd, CRYPTO_GET_PROVIDER_LIST, pl)) < 0) {
+		if (errno != EINTR)
+			break;
+	}
+	if (r < 0 || (pl->pl_return_value != CRYPTO_SUCCESS)) {
+#ifdef DEBUG
+		(void) fprintf(stderr, "libdevcrypto:CRYPTO_GET_PROVIDER_LIST:"
+		    "ret (r) = 0x%x, (rv) = 0x%x\n", r,  pl->pl_return_value);
+#endif /* DEBUG */
+		ret = 0;
+		goto out;
+	}
+
+	for (i = 0; i < slot_count; i++) {
+		kernel_provider_id[i] = pl->pl_list[i].pe_provider_id;
+#ifdef DEBUG
+		(void) fprintf(stderr, "libdevcrypto: i = %d, "
+		    "kernel_provider_id = %d\n", i, kernel_provider_id[i]);
+#endif /* DEBUG */
+	}
+
+out:
+	if (pl != NULL)
+		(void) OPENSSL_free(pl);
+
+	if (ret == 0 && kernel_provider_id != NULL) {
+		(void) OPENSSL_free(kernel_provider_id);
+		kernel_provider_id = NULL;
+	}
+
+	return (ret);
+}
+
+
+/*
+ * This function checks if the "nid" is already in the nid list.
+ */
+static int
+nid_in_list(int nid, int *nid_list, int count)
+{
+	int i = 0;
+
+	if (nid_list == NULL || count <= 0)
+		return (0);
+
+	while (i < count) {
+		if (nid == nid_list[i])
+			break;
+		i++;
+	}
+	return (i < count ? 1 : 0);
+}
+
+/*
+ * This function is to get all the ciphers supported by hardware providers.
+ * If this function is successfully completed, then the following 2 global
+ * variables will be set.
+ * cipher_count - the number of ciphers found in all hardware providers.
+ * cipher_nids - the nid list for all the ciphers.
+ */
+static int
+devcrypto_get_hw_ciphers(void)
+{
+	crypto_get_provider_mechanism_info_t mechinfo;
+	int max_cipher_count;
+	int *tmp_nids = NULL;
+	const char *mech_string;
+	int r;
+	int i, j;
+
+	if (slot_count <= 0)  /* no hardware provider */
+		return (0);
+
+	max_cipher_count = slot_count * DEV_CIPHER_MAX + 1;
+	tmp_nids = OPENSSL_malloc(max_cipher_count * sizeof (int));
+	if (tmp_nids == NULL) {
+		/* not enough memory */
+		goto failed;
+	}
+
+	for (i = 0; i < slot_count; i++) {
+		mechinfo.mi_provider_id = kernel_provider_id[i];
+		for (j = 0; j < DEV_CIPHER_MAX; j++) {
+			mech_string =
+			    pkcs11_mech2str(cipher_table[j].mech_type);
+			if (mech_string == NULL) {
+				continue; /* shouldn't happen; skip it */
+			}
+
+			(void) strlcpy(mechinfo.mi_mechanism_name,
+			    mech_string, CRYPTO_MAX_MECH_NAME);
+			while ((r = ioctl(kernel_fd,
+			    CRYPTO_GET_PROVIDER_MECHANISM_INFO,
+			    &mechinfo)) < 0) {
+				if (errno != EINTR)
+					break;
+			}
+			if (r < 0) {
+				goto failed;
+			}
+
+			if (mechinfo.mi_return_value == CRYPTO_SUCCESS) {
+				/*
+				 * Found this mechanism in hardware providers.
+				 * If it is not in the nid list yet, add it.
+				 */
+				if (!nid_in_list(cipher_table[j].nid,
+				    tmp_nids, cipher_count)) {
+					tmp_nids[cipher_count] =
+					    cipher_table[j].nid;
+					cipher_count++;
+				}
+			}
+		}
+	}
+
+	if (cipher_count > 0) {
+		cipher_nids = tmp_nids;
+	}
+
+	return (1);
+
+failed:
+	if (r < 0 || cipher_count == 0) {
+		if (tmp_nids != NULL)
+			OPENSSL_free(tmp_nids);
+	}
+	return (0);
+}
+
+/*
+ * Registered by the ENGINE when used to find out how to deal with
+ * a particular NID in the ENGINE. This says what we'll do at the
+ * top level - note, that list is restricted by what we answer with.
+ */
+static int
+devcrypto_get_all_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
+    const int **nids, int nid)
+{
+	if (!cipher) {
+		*nids = (cipher_count > 0) ? cipher_nids : NULL;
+		return (cipher_count);
+	}
+
+	switch (nid) {
+	case NID_des_cbc:
+	*cipher = &dev_des_cbc;
+		break;
+	case NID_des_ede3_cbc:
+		*cipher = &dev_3des_cbc;
+		break;
+	case NID_des_ecb:
+		*cipher = &dev_des_ecb;
+		break;
+	case NID_des_ede3_ecb:
+		*cipher = &dev_3des_ecb;
+		break;
+	case NID_rc4:
+		*cipher = &dev_rc4;
+		break;
+	case NID_aes_128_cbc:
+		*cipher = &dev_aes_128_cbc;
+		break;
+	case NID_aes_192_cbc:
+		*cipher = &dev_aes_192_cbc;
+		break;
+	case NID_aes_256_cbc:
+		*cipher = &dev_aes_256_cbc;
+		break;
+	case NID_aes_128_ecb:
+		*cipher = &dev_aes_128_ecb;
+		break;
+	case NID_aes_192_ecb:
+		*cipher = &dev_aes_192_ecb;
+		break;
+	case NID_aes_256_ecb:
+		*cipher = &dev_aes_256_ecb;
+		break;
+	case NID_bf_cbc:
+		*cipher = &dev_bf_cbc;
+		break;
+	default:
+#ifdef	SOLARIS_AES_CTR
+		/*
+		 * We cannot put the NIDs for AES counter mode in separated
+		 * cases as above because they are not constants.
+		 */
+		if (nid == NID_aes_128_ctr)
+			*cipher = &dev_aes_128_ctr;
+		else if (nid == NID_aes_192_ctr)
+			*cipher = &dev_aes_192_ctr;
+		else if (nid == NID_aes_256_ctr)
+			*cipher = &dev_aes_256_ctr;
+		else
+			*cipher = NULL;
+#endif	/* SOLARIS_AES_CTR */
+		break;
+	}
+
+	return (*cipher != NULL);
+}
+
+
+static int
+get_cipher_id_by_nid(int nid)
+{
+	int i;
+
+	for (i = 0; i < DEV_CIPHER_MAX; i++)
+		if (cipher_table[i].nid == nid)
+			return (cipher_table[i].id);
+	return (-1);
+}
+
+
+static int
+get_slotid_by_mechanism(const char *mech_string, CK_SLOT_ID *slot_id)
+{
+	crypto_get_provider_mechanism_info_t mechanism_info;
+	uint_t rv;
+	int r;
+	int i = 0;
+
+	(void) strlcpy(mechanism_info.mi_mechanism_name, mech_string,
+	    CRYPTO_MAX_MECH_NAME);
+	while (i < slot_count) {
+		mechanism_info.mi_provider_id = kernel_provider_id[i];
+		while ((r = ioctl(kernel_fd,
+		    CRYPTO_GET_PROVIDER_MECHANISM_INFO,
+		    &mechanism_info)) < 0) {
+			if (errno != EINTR)
+				break;
+		}
+		if (r < 0) {
+			return (0); /* ioctl function failed */
+		}
+		rv = mechanism_info.mi_return_value;
+		if (rv == 0) { /* found it */
+			*slot_id = kernel_provider_id[i];
+			return (1);
+		}
+		i++;
+	}
+
+	return (0);
+}
+
+
+static int
+devcrypto_cipher_init(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+    const unsigned char *iv, int enc)
+{
+	devcrypto_ctx_t *devc_ctx = ctx->cipher_data;
+	crypto_encrypt_init_t encrypt_init;
+	crypto_decrypt_init_t decrypt_init;
+	crypto_open_session_t session;
+	crypto_get_mechanism_number_t get_number;
+	CK_AES_CTR_PARAMS aes_ctr_params;
+	devcrypto_cipher_t *the_cipher;
+	const char *mech_string;
+	CK_SLOT_ID slot_id;
+	int index;
+	int r;
+	uint_t rv = 0;
+
+	if (key == NULL) {
+		DEVCRYPTOerr(DEVC_F_CIPHER_INIT, DEVC_R_CIPHER_KEY);
+		return (0);
+	}
+
+	/* get the cipher entry index in cipher_table from nid */
+	index = get_cipher_id_by_nid(ctx->cipher->nid);
+	if (index < 0 || index >= DEV_CIPHER_MAX) {
+		DEVCRYPTOerr(DEVC_F_CIPHER_INIT, DEVC_R_CIPHER_NID);
+		return (0);
+	}
+	the_cipher = &cipher_table[index];
+
+	/* check key size */
+	if (ctx->cipher->iv_len < the_cipher->iv_len ||
+	    ctx->key_len < the_cipher->min_key_len ||
+	    ctx->key_len > the_cipher->max_key_len) {
+		DEVCRYPTOerr(DEVC_F_CIPHER_INIT, DEVC_R_KEY_OR_IV_LEN_PROBLEM);
+		return (0);
+	}
+
+	/* Set cipher flags, if any */
+	ctx->flags |= the_cipher->flags;
+
+	/* get the mechanism string */
+	mech_string = pkcs11_mech2str(the_cipher->mech_type);
+	if (mech_string == NULL) {
+		DEVCRYPTOerr(DEVC_F_CIPHER_INIT, DEVC_R_MECH_STRING);
+		return (0);
+	}
+
+#ifdef DEBUG
+	(void) fprintf(stderr, "libdevcrypto: mech_string=%s\n", mech_string);
+#endif
+
+	/* Find the slot that supports this mechanism */
+	if (!get_slotid_by_mechanism(mech_string, &slot_id)) {
+		DEVCRYPTOerr(DEVC_F_CIPHER_INIT, DEVC_R_FIND_SLOT_BY_MECH);
+#ifdef DEBUG
+		(void) fprintf(stderr,
+		    "libdevcrypto: failed to find a slot with %s\n",
+		    mech_string);
+#endif
+		return (0);
+	}
+
+#ifdef DEBUG
+	(void) fprintf(stderr, "libdevcrypto: found a slot with %s, "
+	    "slot_id = %d\n", mech_string, slot_id);
+#endif
+
+	/* Open a session on this slot */
+	session.os_provider_id = slot_id;
+	session.os_flags = CKF_RW_SESSION | CKF_SERIAL_SESSION;
+	while ((r = ioctl(kernel_fd, CRYPTO_OPEN_SESSION, &session)) < 0) {
+		if (errno != EINTR)
+			break;
+	}
+	rv = session.os_return_value;
+	if (r || rv) {
+		DEVCRYPTOerr(DEVC_F_CIPHER_INIT, DEVC_R_OPEN_SESSION);
+#ifdef DEBUG
+		(void) fprintf(stderr,
+		    "libdevcrypto:cipher_init:failed to open a session\n");
+#endif /* DEBUG */
+		goto failed;
+	}
+
+#ifdef DEBUG
+	(void) fprintf(stderr, "libdevcrypto:cipher_init: open session = %d\n",
+	    session.os_session);
+#endif /* DEBUG */
+
+	/* save the session_id */
+	devc_ctx->session_id = session.os_session;
+
+	/*
+	 * Get the kernel mechanism number for this mechanism, if it has not
+	 * been retrieved yet.
+	 */
+	if (the_cipher->pn_internal_number == CRYPTO_MECH_INVALID) {
+		get_number.pn_mechanism_string = (char *)mech_string;
+		get_number.pn_mechanism_len = strlen(mech_string) + 1;
+		while ((r = ioctl(kernel_fd, CRYPTO_GET_MECHANISM_NUMBER,
+		    &get_number)) < 0) {
+			if (errno != EINTR)
+				break;
+		}
+		rv = get_number.pn_return_value;
+		if (r || rv) {
+			DEVCRYPTOerr(DEVC_F_CIPHER_INIT,
+			    DEVC_R_GET_MECHANISM_NUMBER);
+#ifdef DEBUG
+			(void) fprintf(stderr, "libdevcrypto:cipher_init: "
+			    "failed to get the kernel mech number.\n");
+#endif /* DEBUG */
+			goto failed;
+		}
+
+		the_cipher->pn_internal_number = get_number.pn_internal_number;
+	}
+
+	/* Crypto Init */
+	if (ctx->encrypt) {
+		encrypt_init.ei_session = session.os_session;
+		encrypt_init.ei_key.ck_format = CRYPTO_KEY_RAW;
+		encrypt_init.ei_key.ck_obj_id = 0;
+		encrypt_init.ei_key.ck_data = (void *) key;
+		encrypt_init.ei_key.ck_length = ctx->key_len * 8;
+		encrypt_init.ei_mech.cm_type = the_cipher->pn_internal_number;
+
+		if (ctx->cipher->nid == NID_aes_128_ctr ||
+		    ctx->cipher->nid == NID_aes_192_ctr ||
+		    ctx->cipher->nid == NID_aes_256_ctr) {
+			encrypt_init.ei_mech.cm_param =
+			    (void *) (&aes_ctr_params);
+			encrypt_init.ei_mech.cm_param_len =
+			    sizeof (aes_ctr_params);
+
+			aes_ctr_params.ulCounterBits = AES_BLOCK_SIZE * 8;
+			OPENSSL_assert(ctx->cipher->iv_len == AES_BLOCK_SIZE);
+			(void) memcpy(aes_ctr_params.cb, ctx->iv,
+			    AES_BLOCK_SIZE);
+		} else {
+			if (the_cipher->iv_len > 0) {
+				encrypt_init.ei_mech.cm_param =
+				    (char *)ctx->iv;
+				encrypt_init.ei_mech.cm_param_len =
+				    ctx->cipher->iv_len;
+			} else {
+				encrypt_init.ei_mech.cm_param = NULL;
+				encrypt_init.ei_mech.cm_param_len = 0;
+			}
+		}
+
+		while ((r = ioctl(kernel_fd, CRYPTO_ENCRYPT_INIT,
+		    &encrypt_init)) < 0) {
+			if (errno != EINTR)
+				break;
+		}
+		rv = encrypt_init.ei_return_value;
+
+	} else {
+		decrypt_init.di_session = session.os_session;
+		decrypt_init.di_key.ck_format = CRYPTO_KEY_RAW;
+		decrypt_init.di_key.ck_obj_id = 0;
+		decrypt_init.di_key.ck_data = (void *) key;
+		decrypt_init.di_key.ck_length = ctx->key_len * 8;
+		decrypt_init.di_mech.cm_type = the_cipher->pn_internal_number;
+
+		if (ctx->cipher->nid == NID_aes_128_ctr ||
+		    ctx->cipher->nid == NID_aes_192_ctr ||
+		    ctx->cipher->nid == NID_aes_256_ctr) {
+			decrypt_init.di_mech.cm_param =
+			    (void *)(&aes_ctr_params);
+			decrypt_init.di_mech.cm_param_len =
+			    sizeof (aes_ctr_params);
+			aes_ctr_params.ulCounterBits = AES_BLOCK_SIZE * 8;
+			OPENSSL_assert(ctx->cipher->iv_len == AES_BLOCK_SIZE);
+			(void) memcpy(aes_ctr_params.cb, ctx->iv,
+			    AES_BLOCK_SIZE);
+		} else {
+			if (the_cipher->iv_len > 0) {
+				decrypt_init.di_mech.cm_param =
+				    (char *)ctx->iv;
+				decrypt_init.di_mech.cm_param_len =
+				    ctx->cipher->iv_len;
+			} else {
+				decrypt_init.di_mech.cm_param = NULL;
+				decrypt_init.di_mech.cm_param_len = 0;
+			}
+		}
+
+		while ((r = ioctl(kernel_fd, CRYPTO_DECRYPT_INIT,
+		    &decrypt_init)) < 0) {
+			if (errno != EINTR)
+				break;
+		}
+		rv = decrypt_init.di_return_value;
+	}
+
+failed:
+	if (r || rv) {
+		if (ctx->encrypt)
+			DEVCRYPTOerr(DEVC_F_CIPHER_INIT, DEVC_R_ENCRYPT_INIT);
+		else
+			DEVCRYPTOerr(DEVC_F_CIPHER_INIT, DEVC_R_DECRYPT_INIT);
+
+		return (0);
+	}
+
+	return (1);
+}
+
+
+/*
+ * ENCRYPT_UPDATE or DECRYPT_UPDATE
+ */
+static int
+devcrypto_cipher_do_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+    const unsigned char *in, size_t inl)
+{
+	crypto_encrypt_update_t encrypt_update;
+	crypto_decrypt_update_t decrypt_update;
+	devcrypto_ctx_t *devc_ctx = ctx->cipher_data;
+	int r = 0, rv = 0;
+
+	if (ctx->encrypt) {
+		encrypt_update.eu_session = devc_ctx->session_id;
+		encrypt_update.eu_databuf = (char *)in;
+		encrypt_update.eu_datalen = inl;
+		encrypt_update.eu_encrbuf = (char *)out;
+		encrypt_update.eu_encrlen = inl;
+
+		while ((r = ioctl(kernel_fd, CRYPTO_ENCRYPT_UPDATE,
+		    &encrypt_update)) < 0) {
+			if (errno != EINTR)
+				break;
+		}
+		rv = encrypt_update.eu_return_value;
+
+	} else { /* decrypt */
+		decrypt_update.du_session = devc_ctx->session_id;
+		decrypt_update.du_encrbuf = (char *)in;
+		decrypt_update.du_encrlen = inl;
+		decrypt_update.du_databuf = (char *)out;
+		decrypt_update.du_datalen = inl;
+
+		while ((r = ioctl(kernel_fd, CRYPTO_DECRYPT_UPDATE,
+		    &decrypt_update)) < 0) {
+			if (errno != EINTR)
+				break;
+		}
+		rv = decrypt_update.du_return_value;
+	}
+
+	if (r || rv) {
+		if (ctx->encrypt)
+			DEVCRYPTOerr(DEVC_F_CIPHER_DO_CIPHER,
+			    DEVC_R_ENCRYPT_UPDATE);
+		else
+			DEVCRYPTOerr(DEVC_F_CIPHER_DO_CIPHER,
+			    DEVC_R_DECRYPT_UPDATE);
+
+#ifdef DEBUG
+		(void) fprintf(stderr, "libdevcrypto:crypto_do ret (r) = 0x%x,"
+		    "crypto ret (rv) = 0x%x,", r, rv);
+#endif /* DEBUG */
+		return (0);
+	}
+
+	return (1);
+}
+
+
+/*
+ * ENCRYPT_FINAL or DECRYPT_FINAL
+ */
+static int
+devcrypto_cipher_cleanup(EVP_CIPHER_CTX *ctx)
+{
+	crypto_encrypt_final_t encrypt_final;
+	crypto_decrypt_final_t decrypt_final;
+	crypto_close_session_t session;
+	devcrypto_ctx_t *devc_ctx = ctx->cipher_data;
+	char buf[EVP_MAX_BLOCK_LENGTH];
+	int r;
+	uint_t rv = 0;
+	int ret = 1;
+
+	if (ctx->encrypt) {
+		encrypt_final.ef_session = devc_ctx->session_id;
+		encrypt_final.ef_encrbuf = buf;
+		encrypt_final.ef_encrlen = sizeof (buf);
+		while ((r = ioctl(kernel_fd, CRYPTO_ENCRYPT_FINAL,
+		    &encrypt_final)) < 0) {
+			if (errno != EINTR)
+				break;
+		}
+		rv = encrypt_final.ef_return_value;
+
+	} else {
+		decrypt_final.df_session = devc_ctx->session_id;
+		decrypt_final.df_databuf = buf;
+		decrypt_final.df_datalen = sizeof (buf);
+		while ((r = ioctl(kernel_fd, CRYPTO_DECRYPT_FINAL,
+		    &decrypt_final)) < 0) {
+			if (errno != EINTR)
+				break;
+		}
+		rv = decrypt_final.df_return_value;
+	}
+
+#ifdef DEBUG
+	if (ctx->encrypt)
+		(void) fprintf(stderr, "libdevcrypto:CRYPTO_ENCRYPT_FINAL "
+		    "ret (r) = 0x%x, (rv) = 0x%x\n", r, rv);
+	else
+		(void) fprintf(stderr, "libdevcrypto:CRYPTO_DECRYPT_FINAL "
+		    "ret (r) = 0x%x, (rv) = 0x%x\n", r, rv);
+#endif /* DEBUG */
+
+	if (r || rv) {
+		if (ctx->encrypt)
+			DEVCRYPTOerr(DEVC_F_CIPHER_CLEANUP,
+			    DEVC_R_ENCRYPT_FINAL);
+		else
+			DEVCRYPTOerr(DEVC_F_CIPHER_CLEANUP,
+			    DEVC_R_DECRYPT_FINAL);
+		ret = 0;
+	}
+
+	/* close the session */
+	session.cs_session = devc_ctx->session_id;
+	while ((r = ioctl(kernel_fd, CRYPTO_CLOSE_SESSION, &session)) < 0) {
+		if (errno != EINTR)
+			break;
+	}
+
+#ifdef DEBUG
+	(void) fprintf(stderr, "libdevcrypto:CRYPTO_CLOSE_SESSION, "
+	    "session id = %d ret (r) = 0x%x, crypto ret (rv) = 0x%x\n",
+	    devc_ctx->session_id, r, rv);
+#endif /* DEBUG */
+
+	if (r || rv) {
+		DEVCRYPTOerr(DEVC_F_CIPHER_CLEANUP, DEVC_R_CLOSE_SESSION);
+		ret = 0;
+	}
+
+	return (ret);
+}
+
+static void
+devcrypto_cleanup(void)
+{
+	if (kernel_fd == -1)
+		return;
+
+	(void) pthread_mutex_lock(kernel_fd_lock);
+	kernel_fd_ref--;
+	(void) pthread_mutex_unlock(kernel_fd_lock);
+
+	if (kernel_fd_ref == 0) {
+		(void) pthread_mutex_lock(kernel_fd_lock);
+		(void) close(kernel_fd);
+		kernel_fd = -1;
+		if (kernel_provider_id != NULL) {
+			OPENSSL_free(kernel_provider_id);
+			kernel_provider_id = NULL;
+		}
+		if (cipher_nids != NULL) {
+			OPENSSL_free(cipher_nids);
+			cipher_nids = NULL;
+		}
+		devcrypto_free_aes_ctr_NIDs();
+		(void) pthread_mutex_unlock(kernel_fd_lock);
+		(void) pthread_mutex_destroy(kernel_fd_lock);
+		OPENSSL_free(kernel_fd_lock);
+		kernel_fd_lock = NULL;
+	}
+}
+
+static int
+devcrypto_destroy(ENGINE *e)
+{
+	ERR_unload_devcrypto_strings();
+	return (1);
+}
+
+static int
+devcrypto_finish(ENGINE *e)
+{
+	devcrypto_cleanup();
+	return (1);
+}
+
+/*
+ * Set up the engine info and get the /dev/crypto engine ready.
+ */
+static int
+devcrypto_bind(ENGINE *e)
+{
+#ifdef DEBUG
+	int i;
+#endif
+
+#ifdef	SOLARIS_AES_CTR
+	/* Get the NIDs for AES counter mode algorithms first. */
+	if (devcrypto_add_aes_ctr_NIDs() == 0) {
+		return (0);
+	}
+#endif	/* SOLARIS_AES_CTR */
+
+	/* Create a lock for the devcrypto device file descriptor */
+	if (kernel_fd_lock == NULL) {
+		kernel_fd_lock = OPENSSL_malloc(sizeof (pthread_mutex_t));
+		if (kernel_fd_lock == NULL) {
+			devcrypto_free_aes_ctr_NIDs();
+			return (0);
+		}
+
+		if (pthread_mutex_init(kernel_fd_lock, NULL) != 0) {
+			devcrypto_free_aes_ctr_NIDs();
+			OPENSSL_free(kernel_fd_lock);
+			kernel_fd_lock = NULL;
+			return (0);
+		}
+	}
+
+	/* Open the /dev/crypto device */
+	if (devcrypto_open() == 0) {
+		devcrypto_free_aes_ctr_NIDs();
+		pthread_mutex_destroy(kernel_fd_lock);
+		OPENSSL_free(kernel_fd_lock);
+		kernel_fd_lock = NULL;
+		return (0);
+	}
+
+	/* Get all hardware providers' information */
+	if (devcrypto_get_slot_info() == 0) {
+		goto failed;
+	}
+
+	if (devcrypto_get_hw_ciphers() == 0) {
+		goto failed;
+	}
+
+#ifdef DEBUG
+	(void) fprintf(stderr, "cipher_count = %d\n", cipher_count);
+	for (i = 0; i < cipher_count; i++) {
+		(void) fprintf(stderr,
+		    "cipher_nids[i] = %d\n", cipher_nids[i]);
+	}
+#endif /* DEBUG */
+
+	if (!ENGINE_set_id(e, ENGINE_DEVCRYPTO_ID) ||
+	    !ENGINE_set_name(e, ENGINE_DEVCRYPTO_NAME) ||
+	    !ENGINE_set_ciphers(e, devcrypto_get_all_ciphers) ||
+	    !ENGINE_set_destroy_function(e, devcrypto_destroy) ||
+	    !ENGINE_set_finish_function(e, devcrypto_finish)) {
+		goto failed;
+	}
+
+	/* Set up the devcrypto error handling */
+	ERR_load_devcrypto_strings();
+	return (1);
+
+failed:
+	devcrypto_cleanup();
+	return (0);
+}
+
+
+static int
+bind_helper(ENGINE *e, const char *id)
+{
+	if (id != NULL && (strcmp(id, ENGINE_DEVCRYPTO_ID) != 0)) {
+#ifdef DEBUG
+		(void) fprintf(stderr, "libdevcrypto - bad engine id\n");
+#endif /* DEBUG */
+		return (0);
+	}
+	if (!devcrypto_bind(e)) {
+#ifdef DEBUG
+		(void) fprintf(stderr,
+		    "libdevcrypto - failed to bind engine\n");
+#endif /* DEBUG */
+		return (0);
+	}
+
+	return (1);
+}
+
+IMPLEMENT_DYNAMIC_CHECK_FN()
+IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)