diff options
Diffstat (limited to 'openssl1.0.0/engines/pkcs11')
| -rw-r--r-- | openssl1.0.0/engines/pkcs11/hw_pk11.c | 3924 | ||||
| -rw-r--r-- | openssl1.0.0/engines/pkcs11/hw_pk11.h | 257 | ||||
| -rw-r--r-- | openssl1.0.0/engines/pkcs11/hw_pk11_err.c | 306 | ||||
| -rw-r--r-- | openssl1.0.0/engines/pkcs11/hw_pk11_err.h | 242 | ||||
| -rw-r--r-- | openssl1.0.0/engines/pkcs11/hw_pk11_pub.c | 3277 | ||||
| -rw-r--r-- | openssl1.0.0/engines/pkcs11/hw_pk11_uri.c | 869 | ||||
| -rw-r--r-- | openssl1.0.0/engines/pkcs11/hw_pk11_uri.h | 113 |
7 files changed, 8988 insertions, 0 deletions
diff --git a/openssl1.0.0/engines/pkcs11/hw_pk11.c b/openssl1.0.0/engines/pkcs11/hw_pk11.c new file mode 100644 index 0000000..7f35714 --- /dev/null +++ b/openssl1.0.0/engines/pkcs11/hw_pk11.c @@ -0,0 +1,3924 @@ +/* + * Copyright (c) 2004, 2012, Oracle and/or its affiliates. All rights reserved. + */ + +/* crypto/engine/hw_pk11.c */ +/* + * This product includes software developed by the OpenSSL Project for + * use in the OpenSSL Toolkit (http://www.openssl.org/). + * + * This project also referenced hw_pkcs11-0.9.7b.patch written by + * Afchine Madjlessi. + */ +/* + * ==================================================================== + * Copyright (c) 2000-2001 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/types.h> +#include <unistd.h> +#include <strings.h> + +#include <openssl/e_os2.h> +#include <openssl/crypto.h> +#include <openssl/engine.h> +#include <openssl/dso.h> +#include <openssl/err.h> +#include <openssl/bn.h> +#include <openssl/md5.h> +#include <openssl/pem.h> +#ifndef OPENSSL_NO_RSA +#include <openssl/rsa.h> +#endif +#ifndef OPENSSL_NO_DSA +#include <openssl/dsa.h> +#endif +#ifndef OPENSSL_NO_DH +#include <openssl/dh.h> +#endif +#include <openssl/rand.h> +#include <openssl/objects.h> +#include <openssl/x509.h> +#include <openssl/aes.h> +#include <cryptlib.h> +#include <dlfcn.h> +#include <pthread.h> + +#ifndef OPENSSL_NO_HW +#ifndef OPENSSL_NO_HW_PK11 + +/* label for debug messages printed on stderr */ +#define PK11_DBG "PKCS#11 ENGINE DEBUG" +/* prints a lot of debug messages on stderr about slot selection process */ +#undef DEBUG_SLOT_SELECTION +/* + * Solaris specific code. See comment at check_hw_mechanisms() for more + * information. + */ +#if defined(__SVR4) && defined(__sun) +#define SOLARIS_HW_SLOT_SELECTION +#endif + +#ifdef SOLARIS_HW_SLOT_SELECTION +#include <sys/auxv.h> +#endif + +#ifdef DEBUG_SLOT_SELECTION +#define DEBUG_SLOT_SEL(...) fprintf(stderr, __VA_ARGS__) +#else +#define DEBUG_SLOT_SEL(...) +#endif + + +#include <security/cryptoki.h> +#include <security/pkcs11.h> +#include "hw_pk11.h" +#include "hw_pk11_uri.h" + +#define PK11_ENGINE_LIB_NAME "PKCS#11 engine" +#include "hw_pk11_err.c" + +#ifdef SOLARIS_AES_CTR +/* + * NIDs for AES counter mode that will be defined during the engine + * initialization. + */ +int NID_aes_128_ctr = NID_undef; +int NID_aes_192_ctr = NID_undef; +int NID_aes_256_ctr = NID_undef; +#endif /* SOLARIS_AES_CTR */ + +/* + * We use this lock to prevent multiple C_Login()s, guard getpassphrase(), + * uri_struct manipulation, and static token info. All of that is used by the + * RSA keys by reference feature. + */ +pthread_mutex_t *uri_lock = NULL; + +#ifdef SOLARIS_HW_SLOT_SELECTION +/* + * Tables for symmetric ciphers and digest mechs found in the pkcs11_kernel + * library. See comment at check_hw_mechanisms() for more information. + */ +int *hw_cnids; +int *hw_dnids; +#endif /* SOLARIS_HW_SLOT_SELECTION */ + +/* PKCS#11 session caches and their locks for all operation types */ +static PK11_CACHE session_cache[OP_MAX]; + +/* + * We cache the flags so that we do not have to run C_GetTokenInfo() again when + * logging into the token. + */ +CK_FLAGS pubkey_token_flags; + +/* + * As stated in v2.20, 11.7 Object Management Function, in section for + * C_FindObjectsInit(), at most one search operation may be active at a given + * time in a given session. Therefore, C_Find{,Init,Final}Objects() should be + * grouped together to form one atomic search operation. This is already + * ensured by the property of unique PKCS#11 session handle used for each + * PK11_SESSION object. + * + * This is however not the biggest concern - maintaining consistency of the + * underlying object store is more important. The same section of the spec also + * says that one thread can be in the middle of a search operation while another + * thread destroys the object matching the search template which would result in + * invalid handle returned from the search operation. + * + * Hence, the following locks are used for both protection of the object stores. + * They are also used for active list protection. + */ +pthread_mutex_t *find_lock[OP_MAX] = { NULL }; + +/* + * lists of asymmetric key handles which are active (referenced by at least one + * PK11_SESSION structure, either held by a thread or present in free_session + * list) for given algorithm type + */ +PK11_active *active_list[OP_MAX] = { NULL }; + +/* + * Create all secret key objects in a global session so that they are available + * to use for other sessions. These other sessions may be opened or closed + * without losing the secret key objects. + */ +static CK_SESSION_HANDLE global_session = CK_INVALID_HANDLE; + +/* Index for the supported ciphers */ +enum pk11_cipher_id { + PK11_DES_CBC, + PK11_DES3_CBC, + PK11_DES_ECB, + PK11_DES3_ECB, + PK11_RC4, + PK11_AES_128_CBC, + PK11_AES_192_CBC, + PK11_AES_256_CBC, + PK11_AES_128_ECB, + PK11_AES_192_ECB, + PK11_AES_256_ECB, + PK11_BLOWFISH_CBC, +#ifdef SOLARIS_AES_CTR + PK11_AES_128_CTR, + PK11_AES_192_CTR, + PK11_AES_256_CTR, +#endif /* SOLARIS_AES_CTR */ + PK11_CIPHER_MAX +}; + +/* Index for the supported digests */ +enum pk11_digest_id { + PK11_MD5, + PK11_SHA1, + PK11_SHA224, + PK11_SHA256, + PK11_SHA384, + PK11_SHA512, + PK11_DIGEST_MAX +}; + +typedef struct PK11_CIPHER_st + { + enum pk11_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; + } PK11_CIPHER; + +typedef struct PK11_DIGEST_st + { + enum pk11_digest_id id; + int nid; + CK_MECHANISM_TYPE mech_type; + } PK11_DIGEST; + +/* ENGINE level stuff */ +static int pk11_init(ENGINE *e); +static int pk11_library_init(ENGINE *e); +static int pk11_finish(ENGINE *e); +static int pk11_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)()); +static int pk11_destroy(ENGINE *e); + +/* RAND stuff */ +static void pk11_rand_seed(const void *buf, int num); +static void pk11_rand_add(const void *buf, int num, double add_entropy); +static void pk11_rand_cleanup(void); +static int pk11_rand_bytes(unsigned char *buf, int num); +static int pk11_rand_status(void); + +/* These functions are also used in other files */ +PK11_SESSION *pk11_get_session(PK11_OPTYPE optype); +void pk11_return_session(PK11_SESSION *sp, PK11_OPTYPE optype); + +/* active list manipulation functions used in this file */ +extern int pk11_active_delete(CK_OBJECT_HANDLE h, PK11_OPTYPE type); +extern void pk11_free_active_list(PK11_OPTYPE type); + +#ifndef OPENSSL_NO_RSA +int pk11_destroy_rsa_key_objects(PK11_SESSION *session); +int pk11_destroy_rsa_object_pub(PK11_SESSION *sp, CK_BBOOL uselock); +int pk11_destroy_rsa_object_priv(PK11_SESSION *sp, CK_BBOOL uselock); +#endif +#ifndef OPENSSL_NO_DSA +int pk11_destroy_dsa_key_objects(PK11_SESSION *session); +int pk11_destroy_dsa_object_pub(PK11_SESSION *sp, CK_BBOOL uselock); +int pk11_destroy_dsa_object_priv(PK11_SESSION *sp, CK_BBOOL uselock); +#endif +#ifndef OPENSSL_NO_DH +int pk11_destroy_dh_key_objects(PK11_SESSION *session); +int pk11_destroy_dh_object(PK11_SESSION *session, CK_BBOOL uselock); +#endif + +/* Local helper functions */ +static int pk11_free_all_sessions(void); +static int pk11_free_session_list(PK11_OPTYPE optype); +static int pk11_setup_session(PK11_SESSION *sp, PK11_OPTYPE optype); +static int pk11_destroy_cipher_key_objects(PK11_SESSION *session); +static int pk11_destroy_object(CK_SESSION_HANDLE handle, CK_OBJECT_HANDLE oh, + CK_BBOOL persistent); +static const char *get_PK11_LIBNAME(void); +static void free_PK11_LIBNAME(void); +static long set_PK11_LIBNAME(const char *name); + +/* Symmetric cipher and digest support functions */ +static int cipher_nid_to_pk11(int nid); +#ifdef SOLARIS_AES_CTR +static int pk11_add_NID(char *sn, char *ln); +static int pk11_add_aes_ctr_NIDs(void); +#endif /* SOLARIS_AES_CTR */ +static int pk11_usable_ciphers(const int **nids); +static int pk11_usable_digests(const int **nids); +static int pk11_cipher_init(EVP_CIPHER_CTX *ctx, const unsigned char *key, + const unsigned char *iv, int enc); +static int pk11_cipher_final(PK11_SESSION *sp); +static int pk11_cipher_do_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t inl); +static int pk11_cipher_cleanup(EVP_CIPHER_CTX *ctx); +static int pk11_engine_ciphers(ENGINE *e, const EVP_CIPHER **cipher, + const int **nids, int nid); +static int pk11_engine_digests(ENGINE *e, const EVP_MD **digest, + const int **nids, int nid); +static CK_OBJECT_HANDLE pk11_get_cipher_key(EVP_CIPHER_CTX *ctx, + const unsigned char *key, CK_KEY_TYPE key_type, PK11_SESSION *sp); +static int check_new_cipher_key(PK11_SESSION *sp, const unsigned char *key, + int key_len); +static int md_nid_to_pk11(int nid); +static int pk11_digest_init(EVP_MD_CTX *ctx); +static int pk11_digest_update(EVP_MD_CTX *ctx, const void *data, + size_t count); +static int pk11_digest_final(EVP_MD_CTX *ctx, unsigned char *md); +static int pk11_digest_copy(EVP_MD_CTX *to, const EVP_MD_CTX *from); +static int pk11_digest_cleanup(EVP_MD_CTX *ctx); + +static int pk11_choose_slots(int *any_slot_found); +static void pk11_find_symmetric_ciphers(CK_FUNCTION_LIST_PTR pflist, + CK_SLOT_ID current_slot, int *current_slot_n_cipher, + int *local_cipher_nids); +static void pk11_find_digests(CK_FUNCTION_LIST_PTR pflist, + CK_SLOT_ID current_slot, int *current_slot_n_digest, + int *local_digest_nids); +static void pk11_get_symmetric_cipher(CK_FUNCTION_LIST_PTR, int slot_id, + int *current_slot_n_cipher, int *local_cipher_nids, + PK11_CIPHER *cipher); +static void pk11_get_digest(CK_FUNCTION_LIST_PTR pflist, int slot_id, + int *current_slot_n_digest, int *local_digest_nids, + PK11_DIGEST *digest); + +static int pk11_init_all_locks(void); +static void pk11_free_all_locks(void); + +#ifdef SOLARIS_HW_SLOT_SELECTION +static int check_hw_mechanisms(void); +static int nid_in_table(int nid, int *nid_table); +static int hw_aes_instruction_set_present(void); +#endif /* SOLARIS_HW_SLOT_SELECTION */ + +#define TRY_OBJ_DESTROY(sp, obj_hdl, retval, uselock, alg_type) \ + { \ + if (uselock) \ + LOCK_OBJSTORE(alg_type); \ + if (pk11_active_delete(obj_hdl, alg_type) == 1) \ + { \ + retval = pk11_destroy_object(sp->session, obj_hdl, \ + sp->persistent); \ + } \ + if (uselock) \ + UNLOCK_OBJSTORE(alg_type); \ + } + +static int cipher_nids[PK11_CIPHER_MAX]; +static int digest_nids[PK11_DIGEST_MAX]; +static int cipher_count = 0; +static int digest_count = 0; +static CK_BBOOL pk11_have_rsa = CK_FALSE; +static CK_BBOOL pk11_have_dsa = CK_FALSE; +static CK_BBOOL pk11_have_dh = CK_FALSE; +static CK_BBOOL pk11_have_random = CK_FALSE; + +/* + * Static list of ciphers. + * Note, that ciphers array is indexed by member PK11_CIPHER.id, + * thus ciphers[i].id == i + * Rows must be kept in sync with enum pk11_cipher_id. + */ +static PK11_CIPHER ciphers[] = + { + { PK11_DES_CBC, NID_des_cbc, 8, 8, 8, + CKK_DES, CKM_DES_CBC, }, + { PK11_DES3_CBC, NID_des_ede3_cbc, 8, 24, 24, + CKK_DES3, CKM_DES3_CBC, }, + { PK11_DES_ECB, NID_des_ecb, 0, 8, 8, + CKK_DES, CKM_DES_ECB, }, + { PK11_DES3_ECB, NID_des_ede3_ecb, 0, 24, 24, + CKK_DES3, CKM_DES3_ECB, }, + { PK11_RC4, NID_rc4, 0, 16, 256, + CKK_RC4, CKM_RC4, }, + { PK11_AES_128_CBC, NID_aes_128_cbc, 16, 16, 16, + CKK_AES, CKM_AES_CBC, }, + { PK11_AES_192_CBC, NID_aes_192_cbc, 16, 24, 24, + CKK_AES, CKM_AES_CBC, }, + { PK11_AES_256_CBC, NID_aes_256_cbc, 16, 32, 32, + CKK_AES, CKM_AES_CBC, }, + { PK11_AES_128_ECB, NID_aes_128_ecb, 0, 16, 16, + CKK_AES, CKM_AES_ECB, }, + { PK11_AES_192_ECB, NID_aes_192_ecb, 0, 24, 24, + CKK_AES, CKM_AES_ECB, }, + { PK11_AES_256_ECB, NID_aes_256_ecb, 0, 32, 32, + CKK_AES, CKM_AES_ECB, }, + { PK11_BLOWFISH_CBC, NID_bf_cbc, 8, 16, 16, + CKK_BLOWFISH, CKM_BLOWFISH_CBC, }, +#ifdef SOLARIS_AES_CTR + /* we don't know the correct NIDs until the engine is initialized */ + { PK11_AES_128_CTR, NID_undef, 16, 16, 16, + CKK_AES, CKM_AES_CTR, }, + { PK11_AES_192_CTR, NID_undef, 16, 24, 24, + CKK_AES, CKM_AES_CTR, }, + { PK11_AES_256_CTR, NID_undef, 16, 32, 32, + CKK_AES, CKM_AES_CTR, }, +#endif /* SOLARIS_AES_CTR */ + }; + +/* + * Static list of digests. + * Note, that digests array is indexed by member PK11_DIGEST.id, + * thus digests[i].id == i + * Rows must be kept in sync with enum pk11_digest_id. + */ +static PK11_DIGEST digests[] = + { + {PK11_MD5, NID_md5, CKM_MD5, }, + {PK11_SHA1, NID_sha1, CKM_SHA_1, }, + {PK11_SHA224, NID_sha224, CKM_SHA224, }, + {PK11_SHA256, NID_sha256, CKM_SHA256, }, + {PK11_SHA384, NID_sha384, CKM_SHA384, }, + {PK11_SHA512, NID_sha512, CKM_SHA512, }, + {0, NID_undef, 0xFFFF, }, + }; + +/* + * Structure to be used for the cipher_data/md_data in + * EVP_CIPHER_CTX/EVP_MD_CTX structures in order to use the same pk11 + * session in multiple cipher_update calls + */ +typedef struct PK11_CIPHER_STATE_st + { + PK11_SESSION *sp; + } PK11_CIPHER_STATE; + + +/* + * libcrypto EVP stuff - this is how we get wired to EVP so the engine gets + * called when libcrypto requests a cipher NID. + * + * Note how the PK11_CIPHER_STATE is used here. + */ + +/* DES CBC EVP */ +static const EVP_CIPHER pk11_des_cbc = + { + NID_des_cbc, + 8, 8, 8, + EVP_CIPH_CBC_MODE, + pk11_cipher_init, + pk11_cipher_do_cipher, + pk11_cipher_cleanup, + sizeof (PK11_CIPHER_STATE), + EVP_CIPHER_set_asn1_iv, + EVP_CIPHER_get_asn1_iv, + NULL + }; + +/* 3DES CBC EVP */ +static const EVP_CIPHER pk11_3des_cbc = + { + NID_des_ede3_cbc, + 8, 24, 8, + EVP_CIPH_CBC_MODE, + pk11_cipher_init, + pk11_cipher_do_cipher, + pk11_cipher_cleanup, + sizeof (PK11_CIPHER_STATE), + EVP_CIPHER_set_asn1_iv, + EVP_CIPHER_get_asn1_iv, + NULL + }; + +/* + * ECB modes don't use an Initial Vector so that's why set_asn1_parameters and + * get_asn1_parameters fields are set to NULL. + */ +static const EVP_CIPHER pk11_des_ecb = + { + NID_des_ecb, + 8, 8, 8, + EVP_CIPH_ECB_MODE, + pk11_cipher_init, + pk11_cipher_do_cipher, + pk11_cipher_cleanup, + sizeof (PK11_CIPHER_STATE), + NULL, + NULL, + NULL + }; + +static const EVP_CIPHER pk11_3des_ecb = + { + NID_des_ede3_ecb, + 8, 24, 8, + EVP_CIPH_ECB_MODE, + pk11_cipher_init, + pk11_cipher_do_cipher, + pk11_cipher_cleanup, + sizeof (PK11_CIPHER_STATE), + NULL, + NULL, + NULL + }; + + +static const EVP_CIPHER pk11_aes_128_cbc = + { + NID_aes_128_cbc, + 16, 16, 16, + EVP_CIPH_CBC_MODE, + pk11_cipher_init, + pk11_cipher_do_cipher, + pk11_cipher_cleanup, + sizeof (PK11_CIPHER_STATE), + EVP_CIPHER_set_asn1_iv, + EVP_CIPHER_get_asn1_iv, + NULL + }; + +static const EVP_CIPHER pk11_aes_192_cbc = + { + NID_aes_192_cbc, + 16, 24, 16, + EVP_CIPH_CBC_MODE, + pk11_cipher_init, + pk11_cipher_do_cipher, + pk11_cipher_cleanup, + sizeof (PK11_CIPHER_STATE), + EVP_CIPHER_set_asn1_iv, + EVP_CIPHER_get_asn1_iv, + NULL + }; + +static const EVP_CIPHER pk11_aes_256_cbc = + { + NID_aes_256_cbc, + 16, 32, 16, + EVP_CIPH_CBC_MODE, + pk11_cipher_init, + pk11_cipher_do_cipher, + pk11_cipher_cleanup, + sizeof (PK11_CIPHER_STATE), + EVP_CIPHER_set_asn1_iv, + EVP_CIPHER_get_asn1_iv, + NULL + }; + +/* + * ECB modes don't use IV so that's why set_asn1_parameters and + * get_asn1_parameters are set to NULL. + */ +static const EVP_CIPHER pk11_aes_128_ecb = + { + NID_aes_128_ecb, + 16, 16, 0, + EVP_CIPH_ECB_MODE, + pk11_cipher_init, + pk11_cipher_do_cipher, + pk11_cipher_cleanup, + sizeof (PK11_CIPHER_STATE), + NULL, + NULL, + NULL + }; + +static const EVP_CIPHER pk11_aes_192_ecb = + { + NID_aes_192_ecb, + 16, 24, 0, + EVP_CIPH_ECB_MODE, + pk11_cipher_init, + pk11_cipher_do_cipher, + pk11_cipher_cleanup, + sizeof (PK11_CIPHER_STATE), + NULL, + NULL, + NULL + }; + +static const EVP_CIPHER pk11_aes_256_ecb = + { + NID_aes_256_ecb, + 16, 32, 0, + EVP_CIPH_ECB_MODE, + pk11_cipher_init, + pk11_cipher_do_cipher, + pk11_cipher_cleanup, + sizeof (PK11_CIPHER_STATE), + NULL, + NULL, + NULL + }; + +#ifdef SOLARIS_AES_CTR +/* + * NID_undef's will be changed to the AES counter mode NIDs as soon they are + * created in pk11_library_init(). Note that the need to change these structures + * is the reason why we don't define them with the const keyword. + */ +static EVP_CIPHER pk11_aes_128_ctr = + { + NID_undef, + 16, 16, 16, + EVP_CIPH_CBC_MODE, + pk11_cipher_init, + pk11_cipher_do_cipher, + pk11_cipher_cleanup, + sizeof (PK11_CIPHER_STATE), + EVP_CIPHER_set_asn1_iv, + EVP_CIPHER_get_asn1_iv, + NULL + }; + +static EVP_CIPHER pk11_aes_192_ctr = + { + NID_undef, + 16, 24, 16, + EVP_CIPH_CBC_MODE, + pk11_cipher_init, + pk11_cipher_do_cipher, + pk11_cipher_cleanup, + sizeof (PK11_CIPHER_STATE), + EVP_CIPHER_set_asn1_iv, + EVP_CIPHER_get_asn1_iv, + NULL + }; + +static EVP_CIPHER pk11_aes_256_ctr = + { + NID_undef, + 16, 32, 16, + EVP_CIPH_CBC_MODE, + pk11_cipher_init, + pk11_cipher_do_cipher, + pk11_cipher_cleanup, + sizeof (PK11_CIPHER_STATE), + EVP_CIPHER_set_asn1_iv, + EVP_CIPHER_get_asn1_iv, + NULL + }; +#endif /* SOLARIS_AES_CTR */ + +static const EVP_CIPHER pk11_bf_cbc = + { + NID_bf_cbc, + 8, 16, 8, + EVP_CIPH_VARIABLE_LENGTH | EVP_CIPH_CBC_MODE, + pk11_cipher_init, + pk11_cipher_do_cipher, + pk11_cipher_cleanup, + sizeof (PK11_CIPHER_STATE), + EVP_CIPHER_set_asn1_iv, + EVP_CIPHER_get_asn1_iv, + NULL + }; + +static const EVP_CIPHER pk11_rc4 = + { + NID_rc4, + 1, 16, 0, + EVP_CIPH_VARIABLE_LENGTH, + pk11_cipher_init, + pk11_cipher_do_cipher, + pk11_cipher_cleanup, + sizeof (PK11_CIPHER_STATE), + NULL, + NULL, + NULL + }; + +static const EVP_MD pk11_md5 = + { + NID_md5, + NID_md5WithRSAEncryption, + MD5_DIGEST_LENGTH, + 0, + pk11_digest_init, + pk11_digest_update, + pk11_digest_final, + pk11_digest_copy, + pk11_digest_cleanup, + EVP_PKEY_RSA_method, + MD5_CBLOCK, + sizeof (PK11_CIPHER_STATE), + }; + +static const EVP_MD pk11_sha1 = + { + NID_sha1, + NID_sha1WithRSAEncryption, + SHA_DIGEST_LENGTH, + EVP_MD_FLAG_PKEY_METHOD_SIGNATURE|EVP_MD_FLAG_DIGALGID_ABSENT, + pk11_digest_init, + pk11_digest_update, + pk11_digest_final, + pk11_digest_copy, + pk11_digest_cleanup, + EVP_PKEY_RSA_method, + SHA_CBLOCK, + sizeof (PK11_CIPHER_STATE), + }; + +static const EVP_MD pk11_sha224 = + { + NID_sha224, + NID_sha224WithRSAEncryption, + SHA224_DIGEST_LENGTH, + EVP_MD_FLAG_PKEY_METHOD_SIGNATURE|EVP_MD_FLAG_DIGALGID_ABSENT, + pk11_digest_init, + pk11_digest_update, + pk11_digest_final, + pk11_digest_copy, + pk11_digest_cleanup, + EVP_PKEY_RSA_method, + /* SHA-224 uses the same cblock size as SHA-256 */ + SHA256_CBLOCK, + sizeof (PK11_CIPHER_STATE), + }; + +static const EVP_MD pk11_sha256 = + { + NID_sha256, + NID_sha256WithRSAEncryption, + SHA256_DIGEST_LENGTH, + EVP_MD_FLAG_PKEY_METHOD_SIGNATURE|EVP_MD_FLAG_DIGALGID_ABSENT, + pk11_digest_init, + pk11_digest_update, + pk11_digest_final, + pk11_digest_copy, + pk11_digest_cleanup, + EVP_PKEY_RSA_method, + SHA256_CBLOCK, + sizeof (PK11_CIPHER_STATE), + }; + +static const EVP_MD pk11_sha384 = + { + NID_sha384, + NID_sha384WithRSAEncryption, + SHA384_DIGEST_LENGTH, + EVP_MD_FLAG_PKEY_METHOD_SIGNATURE|EVP_MD_FLAG_DIGALGID_ABSENT, + pk11_digest_init, + pk11_digest_update, + pk11_digest_final, + pk11_digest_copy, + pk11_digest_cleanup, + EVP_PKEY_RSA_method, + /* SHA-384 uses the same cblock size as SHA-512 */ + SHA512_CBLOCK, + sizeof (PK11_CIPHER_STATE), + }; + +static const EVP_MD pk11_sha512 = + { + NID_sha512, + NID_sha512WithRSAEncryption, + SHA512_DIGEST_LENGTH, + EVP_MD_FLAG_PKEY_METHOD_SIGNATURE|EVP_MD_FLAG_DIGALGID_ABSENT, + pk11_digest_init, + pk11_digest_update, + pk11_digest_final, + pk11_digest_copy, + pk11_digest_cleanup, + EVP_PKEY_RSA_method, + SHA512_CBLOCK, + sizeof (PK11_CIPHER_STATE), + }; + +/* + * Initialization function. Sets up various PKCS#11 library components. + * The definitions for control commands specific to this engine + */ +#define PK11_CMD_SO_PATH ENGINE_CMD_BASE +static const ENGINE_CMD_DEFN pk11_cmd_defns[] = + { + { + PK11_CMD_SO_PATH, + "SO_PATH", + "Specifies the path to the 'pkcs#11' shared library", + ENGINE_CMD_FLAG_STRING + }, + {0, NULL, NULL, 0} + }; + + +static RAND_METHOD pk11_random = + { + pk11_rand_seed, + pk11_rand_bytes, + pk11_rand_cleanup, + pk11_rand_add, + pk11_rand_bytes, + pk11_rand_status + }; + + +/* Constants used when creating the ENGINE */ +static const char *engine_pk11_id = "pkcs11"; +static const char *engine_pk11_name = "PKCS #11 engine support"; + +CK_FUNCTION_LIST_PTR pFuncList = NULL; +static const char PK11_GET_FUNCTION_LIST[] = "C_GetFunctionList"; + +/* + * This is a static string constant for the DSO file name and the function + * symbol names to bind to. We set it in the Configure script based on whether + * this is 32 or 64 bit build. + */ +static const char def_PK11_LIBNAME[] = PK11_LIB_LOCATION; + +static CK_BBOOL pk11_true = CK_TRUE; +static CK_BBOOL pk11_false = CK_FALSE; +/* Needed in hw_pk11_pub.c as well so that's why it is not static. */ +CK_SLOT_ID pubkey_SLOTID = 0; +static CK_SLOT_ID rand_SLOTID = 0; +static CK_SLOT_ID SLOTID = 0; +static CK_BBOOL pk11_library_initialized = CK_FALSE; +static CK_BBOOL pk11_atfork_initialized = CK_FALSE; +static int pk11_pid = 0; +static ENGINE* pk11_engine = NULL; + +static DSO *pk11_dso = NULL; + +/* allocate and initialize all locks used by the engine itself */ +static int pk11_init_all_locks(void) + { + int type; + +#ifndef OPENSSL_NO_RSA + find_lock[OP_RSA] = OPENSSL_malloc(sizeof (pthread_mutex_t)); + if (find_lock[OP_RSA] == NULL) + goto malloc_err; + (void) pthread_mutex_init(find_lock[OP_RSA], NULL); +#endif /* OPENSSL_NO_RSA */ + + if ((uri_lock = OPENSSL_malloc(sizeof (pthread_mutex_t))) == NULL) + goto malloc_err; + (void) pthread_mutex_init(uri_lock, NULL); + +#ifndef OPENSSL_NO_DSA + find_lock[OP_DSA] = OPENSSL_malloc(sizeof (pthread_mutex_t)); + if (find_lock[OP_DSA] == NULL) + goto malloc_err; + (void) pthread_mutex_init(find_lock[OP_DSA], NULL); +#endif /* OPENSSL_NO_DSA */ + +#ifndef OPENSSL_NO_DH + find_lock[OP_DH] = OPENSSL_malloc(sizeof (pthread_mutex_t)); + if (find_lock[OP_DH] == NULL) + goto malloc_err; + (void) pthread_mutex_init(find_lock[OP_DH], NULL); +#endif /* OPENSSL_NO_DH */ + + for (type = 0; type < OP_MAX; type++) + { + session_cache[type].lock = + OPENSSL_malloc(sizeof (pthread_mutex_t)); + if (session_cache[type].lock == NULL) + goto malloc_err; + (void) pthread_mutex_init(session_cache[type].lock, NULL); + } + + return (1); + +malloc_err: + pk11_free_all_locks(); + PK11err(PK11_F_INIT_ALL_LOCKS, PK11_R_MALLOC_FAILURE); + return (0); + } + +static void pk11_free_all_locks(void) + { + int type; + +#ifndef OPENSSL_NO_RSA + if (find_lock[OP_RSA] != NULL) + { + (void) pthread_mutex_destroy(find_lock[OP_RSA]); + OPENSSL_free(find_lock[OP_RSA]); + find_lock[OP_RSA] = NULL; + } +#endif /* OPENSSL_NO_RSA */ +#ifndef OPENSSL_NO_DSA + if (find_lock[OP_DSA] != NULL) + { + (void) pthread_mutex_destroy(find_lock[OP_DSA]); + OPENSSL_free(find_lock[OP_DSA]); + find_lock[OP_DSA] = NULL; + } +#endif /* OPENSSL_NO_DSA */ +#ifndef OPENSSL_NO_DH + if (find_lock[OP_DH] != NULL) + { + (void) pthread_mutex_destroy(find_lock[OP_DH]); + OPENSSL_free(find_lock[OP_DH]); + find_lock[OP_DH] = NULL; + } +#endif /* OPENSSL_NO_DH */ + + for (type = 0; type < OP_MAX; type++) + { + if (session_cache[type].lock != NULL) + { + (void) pthread_mutex_destroy(session_cache[type].lock); + OPENSSL_free(session_cache[type].lock); + session_cache[type].lock = NULL; + } + } + /* Free uri_lock */ + (void) pthread_mutex_destroy(uri_lock); + OPENSSL_free(uri_lock); + uri_lock = NULL; + } + +/* + * This internal function is used by ENGINE_pk11() and "dynamic" ENGINE support. + */ +static int bind_pk11(ENGINE *e) + { +#ifndef OPENSSL_NO_RSA + const RSA_METHOD *rsa = NULL; + RSA_METHOD *pk11_rsa = PK11_RSA(); +#endif /* OPENSSL_NO_RSA */ + if (!pk11_library_initialized) + if (!pk11_library_init(e)) + return (0); + + if (!ENGINE_set_id(e, engine_pk11_id) || + !ENGINE_set_name(e, engine_pk11_name) || + !ENGINE_set_ciphers(e, pk11_engine_ciphers) || + !ENGINE_set_digests(e, pk11_engine_digests)) + return (0); + + if (!ENGINE_set_pkey_meths(e, pk11_engine_pkey_methods)) + return (0); + +#ifndef OPENSSL_NO_RSA + if (pk11_have_rsa == CK_TRUE) + { + if (!ENGINE_set_RSA(e, PK11_RSA()) || + !ENGINE_set_load_privkey_function(e, pk11_load_privkey) || + !ENGINE_set_load_pubkey_function(e, pk11_load_pubkey)) + return (0); + DEBUG_SLOT_SEL("%s: registered RSA\n", PK11_DBG); + } +#endif /* OPENSSL_NO_RSA */ +#ifndef OPENSSL_NO_DSA + if (pk11_have_dsa == CK_TRUE) + { + if (!ENGINE_set_DSA(e, PK11_DSA())) + return (0); + DEBUG_SLOT_SEL("%s: registered DSA\n", PK11_DBG); + } +#endif /* OPENSSL_NO_DSA */ +#ifndef OPENSSL_NO_DH + if (pk11_have_dh == CK_TRUE) + { + if (!ENGINE_set_DH(e, PK11_DH())) + return (0); + DEBUG_SLOT_SEL("%s: registered DH\n", PK11_DBG); + } +#endif /* OPENSSL_NO_DH */ + if (pk11_have_random) + { + if (!ENGINE_set_RAND(e, &pk11_random)) + return (0); + DEBUG_SLOT_SEL("%s: registered random\n", PK11_DBG); + } + if (!ENGINE_set_init_function(e, pk11_init) || + !ENGINE_set_destroy_function(e, pk11_destroy) || + !ENGINE_set_finish_function(e, pk11_finish) || + !ENGINE_set_ctrl_function(e, pk11_ctrl) || + !ENGINE_set_cmd_defns(e, pk11_cmd_defns)) + return (0); + +/* + * Apache calls OpenSSL function RSA_blinding_on() once during startup + * which in turn calls bn_mod_exp. Since we do not implement bn_mod_exp + * here, we wire it back to the OpenSSL software implementation. + * Since it is used only once, performance is not a concern. + */ +#ifndef OPENSSL_NO_RSA + rsa = RSA_PKCS1_SSLeay(); + pk11_rsa->rsa_mod_exp = rsa->rsa_mod_exp; + pk11_rsa->bn_mod_exp = rsa->bn_mod_exp; +#endif /* OPENSSL_NO_RSA */ + + /* Ensure the pk11 error handling is set up */ + ERR_load_pk11_strings(); + + return (1); + } + +/* Dynamic engine support is disabled at a higher level for Solaris */ +#ifdef ENGINE_DYNAMIC_SUPPORT +static int bind_helper(ENGINE *e, const char *id) + { + if (id && (strcmp(id, engine_pk11_id) != 0)) + return (0); + + if (!bind_pk11(e)) + return (0); + + return (1); + } + +IMPLEMENT_DYNAMIC_CHECK_FN() +IMPLEMENT_DYNAMIC_BIND_FN(bind_helper) + +#else +static ENGINE *engine_pk11(void) + { + ENGINE *ret = ENGINE_new(); + + if (!ret) + return (NULL); + + if (!bind_pk11(ret)) + { + ENGINE_free(ret); + return (NULL); + } + + return (ret); + } + +int +pk11_engine_loaded() + { + ENGINE *e; + int rtrn = 0; + + if ((e = ENGINE_by_id(engine_pk11_id)) != NULL) + { + rtrn = 1; + ENGINE_free(e); + } + return (rtrn); + } + +void +ENGINE_load_pk11(void) + { + ENGINE *e_pk11 = NULL; + + /* + * Do not attempt to load the engine twice! + * Multiple instances would share static variables from this file. + */ + if (pk11_engine_loaded()) + return; + + /* + * Do not use dynamic PKCS#11 library on Solaris due to + * security reasons. We will link it in statically. + */ + /* Attempt to load PKCS#11 library */ + if (!pk11_dso) + pk11_dso = DSO_load(NULL, get_PK11_LIBNAME(), NULL, 0); + + if (pk11_dso == NULL) + { + PK11err(PK11_F_LOAD, PK11_R_DSO_FAILURE); + return; + } + + e_pk11 = engine_pk11(); + if (!e_pk11) + { + DSO_free(pk11_dso); + pk11_dso = NULL; + return; + } + + /* + * At this point, the pk11 shared library is either dynamically + * loaded or statically linked in. So, initialize the pk11 + * library before calling ENGINE_set_default since the latter + * needs cipher and digest algorithm information + */ + if (!pk11_library_init(e_pk11)) + { + DSO_free(pk11_dso); + pk11_dso = NULL; + ENGINE_free(e_pk11); + return; + } + + ENGINE_add(e_pk11); + + ENGINE_free(e_pk11); + ERR_clear_error(); + } +#endif /* ENGINE_DYNAMIC_SUPPORT */ + +/* + * These are the static string constants for the DSO file name and + * the function symbol names to bind to. + */ +static const char *PK11_LIBNAME = NULL; + +static const char *get_PK11_LIBNAME(void) + { + if (PK11_LIBNAME) + return (PK11_LIBNAME); + + return (def_PK11_LIBNAME); + } + +static void free_PK11_LIBNAME(void) + { + if (PK11_LIBNAME) + OPENSSL_free((void*)PK11_LIBNAME); + + PK11_LIBNAME = NULL; + } + +static long set_PK11_LIBNAME(const char *name) + { + free_PK11_LIBNAME(); + + return ((PK11_LIBNAME = BUF_strdup(name)) != NULL ? 1 : 0); + } + +/* acquire all engine specific mutexes before fork */ +static void pk11_fork_prepare(void) + { + int i; + + if (!pk11_library_initialized) + return; + + LOCK_OBJSTORE(OP_RSA); + LOCK_OBJSTORE(OP_DSA); + LOCK_OBJSTORE(OP_DH); + (void) pthread_mutex_lock(uri_lock); + for (i = 0; i < OP_MAX; i++) + { + (void) pthread_mutex_lock(session_cache[i].lock); + } + } + +/* release all engine specific mutexes */ +static void pk11_fork_parent(void) + { + int i; + + if (!pk11_library_initialized) + return; + + for (i = OP_MAX - 1; i >= 0; i--) + { + (void) pthread_mutex_unlock(session_cache[i].lock); + } + UNLOCK_OBJSTORE(OP_DH); + UNLOCK_OBJSTORE(OP_DSA); + UNLOCK_OBJSTORE(OP_RSA); + (void) pthread_mutex_unlock(uri_lock); + } + +/* + * same situation as in parent - we need to unlock all locks to make them + * accessible to all threads. + */ +static void pk11_fork_child(void) + { + int i; + + if (!pk11_library_initialized) + return; + + for (i = OP_MAX - 1; i >= 0; i--) + { + (void) pthread_mutex_unlock(session_cache[i].lock); + } + UNLOCK_OBJSTORE(OP_DH); + UNLOCK_OBJSTORE(OP_DSA); + UNLOCK_OBJSTORE(OP_RSA); + (void) pthread_mutex_unlock(uri_lock); + } + +/* Initialization function for the pk11 engine */ +static int pk11_init(ENGINE *e) +{ + return (pk11_library_init(e)); +} + +/* + * Helper function that unsets reference to current engine (pk11_engine = NULL). + * + * Use of local variable only seems clumsy, it needs to be this way! + * This is to prevent double free in the unlucky scenario: + * ENGINE_free calls pk11_destroy calls pk11_finish calls ENGINE_free + * Setting pk11_engine to NULL prior to ENGINE_free() avoids this. + */ +static void pk11_engine_free() + { + ENGINE* old_engine = pk11_engine; + + if (old_engine) { + pk11_engine = NULL; + ENGINE_free(old_engine); + } + } + +/* + * Initialization function. Sets up various PKCS#11 library components. + * It selects a slot based on predefined critiera. In the process, it also + * count how many ciphers and digests to support. Since the cipher and + * digest information is needed when setting default engine, this function + * needs to be called before calling ENGINE_set_default. + */ +/* ARGSUSED */ +static int pk11_library_init(ENGINE *e) + { + CK_C_GetFunctionList p; + CK_RV rv = CKR_OK; + CK_INFO info; + CK_ULONG ul_state_len; + int any_slot_found; + int i; + + if (e != pk11_engine) + { + pk11_engine_free(); + pk11_engine = e; + ENGINE_up_ref(e); + } + + /* + * pk11_library_initialized is set to 0 in pk11_finish() which is called + * from ENGINE_finish(). However, if there is still at least one + * existing functional reference to the engine (see engine(3) for more + * information), pk11_finish() is skipped. For example, this can happen + * if an application forgets to clear one cipher context. In case of a + * fork() when the application is finishing the engine so that it can be + * reinitialized in the child, forgotten functional reference causes + * pk11_library_initialized to stay 1. In that case we need the PID + * check so that we properly initialize the engine again. + */ + if (pk11_library_initialized) + { + if (pk11_pid == getpid()) + { + return (1); + } + else + { + global_session = CK_INVALID_HANDLE; + /* + * free the locks first to prevent memory leak in case + * the application calls fork() without finishing the + * engine first. + */ + pk11_free_all_locks(); + } + } + + + /* Attempt to load PKCS#11 library */ + if (!pk11_dso) + { + pk11_dso = DSO_load(NULL, get_PK11_LIBNAME(), NULL, 0); + if (pk11_dso == NULL) + { + PK11err(PK11_F_LOAD, PK11_R_DSO_FAILURE); + goto err; + } + } + +#ifdef SOLARIS_AES_CTR + /* + * We must do this before we start working with slots since we need all + * NIDs there. + */ + if (pk11_add_aes_ctr_NIDs() == 0) + goto err; +#endif /* SOLARIS_AES_CTR */ + +#ifdef SOLARIS_HW_SLOT_SELECTION + if (check_hw_mechanisms() == 0) + goto err; +#endif /* SOLARIS_HW_SLOT_SELECTION */ + + /* get the C_GetFunctionList function from the loaded library */ + p = (CK_C_GetFunctionList)DSO_bind_func(pk11_dso, + PK11_GET_FUNCTION_LIST); + if (!p) + { + PK11err(PK11_F_LIBRARY_INIT, PK11_R_DSO_FAILURE); + goto err; + } + + /* get the full function list from the loaded library */ + rv = p(&pFuncList); + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_LIBRARY_INIT, PK11_R_DSO_FAILURE, rv); + goto err; + } + + rv = pFuncList->C_Initialize(NULL_PTR); + if ((rv != CKR_OK) && (rv != CKR_CRYPTOKI_ALREADY_INITIALIZED)) + { + PK11err_add_data(PK11_F_LIBRARY_INIT, PK11_R_INITIALIZE, rv); + goto err; + } + + rv = pFuncList->C_GetInfo(&info); + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_LIBRARY_INIT, PK11_R_GETINFO, rv); + goto err; + } + + if (pk11_choose_slots(&any_slot_found) == 0) + goto err; + + /* + * The library we use, set in def_PK11_LIBNAME, may not offer any + * slot(s). In that case, we must not proceed but we must not return an + * error. The reason is that applications that try to set up the PKCS#11 + * engine don't exit on error during the engine initialization just + * because no slot was present. + */ + if (any_slot_found == 0) + return (1); + + if (global_session == CK_INVALID_HANDLE) + { + /* Open the global_session for the new process */ + rv = pFuncList->C_OpenSession(SLOTID, CKF_SERIAL_SESSION, + NULL_PTR, NULL_PTR, &global_session); + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_LIBRARY_INIT, + PK11_R_OPENSESSION, rv); + goto err; + } + } + + /* + * Disable digest if C_GetOperationState is not supported since + * this function is required by OpenSSL digest copy function + */ + if (pFuncList->C_GetOperationState(global_session, NULL, &ul_state_len) + == CKR_FUNCTION_NOT_SUPPORTED) { + DEBUG_SLOT_SEL("%s: C_GetOperationState() not supported, " + "setting digest_count to 0\n", PK11_DBG); + digest_count = 0; + } + + pk11_library_initialized = CK_TRUE; + pk11_pid = getpid(); + /* + * if initialization of the locks fails pk11_init_all_locks() + * will do the cleanup. + */ + if (!pk11_init_all_locks()) + goto err; + for (i = 0; i < OP_MAX; i++) + session_cache[i].head = NULL; + /* + * initialize active lists. We only use active lists + * for asymmetric ciphers. + */ + for (i = 0; i < OP_MAX; i++) + active_list[i] = NULL; + + if (!pk11_atfork_initialized) + { + if (pthread_atfork(pk11_fork_prepare, pk11_fork_parent, + pk11_fork_child) != 0) + { + PK11err(PK11_F_LIBRARY_INIT, PK11_R_ATFORK_FAILED); + goto err; + } + pk11_atfork_initialized = CK_TRUE; + } + + return (1); + +err: + return (0); + } + +/* Destructor (complements the "ENGINE_pk11()" constructor) */ +/* ARGSUSED */ +static int pk11_destroy(ENGINE *e) + { + int rtn = 1; + + free_PK11_LIBNAME(); + ERR_unload_pk11_strings(); + if (pk11_library_initialized == CK_TRUE) + rtn = pk11_finish(e); + + return (rtn); + } + +/* + * Termination function to clean up the session, the token, and the pk11 + * library. + */ +/* ARGSUSED */ +static int pk11_finish(ENGINE *e) + { + int i; + + /* + * Make sure, right engine instance is being destroyed. + * Engine e may be the wrong instance if + * 1) either someone calls ENGINE_load_pk11 twice + * 2) or last ref. to an already finished engine is being destroyed + */ + if (e != pk11_engine) + goto err; + + if (pk11_dso == NULL) + { + PK11err(PK11_F_FINISH, PK11_R_NOT_LOADED); + goto err; + } + + OPENSSL_assert(pFuncList != NULL); + + if (pk11_free_all_sessions() == 0) + goto err; + + /* free all active lists */ + for (i = 0; i < OP_MAX; i++) + pk11_free_active_list(i); + + pFuncList->C_CloseSession(global_session); + global_session = CK_INVALID_HANDLE; + + /* + * Since we are part of a library (libcrypto.so), calling this function + * may have side-effects. + */ +#if 0 + pFuncList->C_Finalize(NULL); +#endif +#ifdef SOLARIS_AES_CTR + { + 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 + + if (!DSO_free(pk11_dso)) + { + PK11err(PK11_F_FINISH, PK11_R_DSO_FAILURE); + goto err; + } + pk11_dso = NULL; + pFuncList = NULL; + pk11_library_initialized = CK_FALSE; + pk11_pid = 0; + pk11_engine_free(); + /* + * There is no way how to unregister atfork handlers (other than + * unloading the library) so we just free the locks. For this reason + * the atfork handlers check if the engine is initialized and bail out + * immediately if not. This is necessary in case a process finishes + * the engine before calling fork(). + */ + pk11_free_all_locks(); + + return (1); + +err: + return (0); + } + +/* Standard engine interface function to set the dynamic library path */ +/* ARGSUSED */ +static int pk11_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)()) + { + int initialized = ((pk11_dso == NULL) ? 0 : 1); + + switch (cmd) + { + case PK11_CMD_SO_PATH: + if (p == NULL) + { + PK11err(PK11_F_CTRL, ERR_R_PASSED_NULL_PARAMETER); + return (0); + } + + if (initialized) + { + PK11err(PK11_F_CTRL, PK11_R_ALREADY_LOADED); + return (0); + } + + return (set_PK11_LIBNAME((const char *)p)); + default: + break; + } + + PK11err(PK11_F_CTRL, PK11_R_CTRL_COMMAND_NOT_IMPLEMENTED); + + return (0); + } + + +/* Required function by the engine random interface. It does nothing here */ +static void pk11_rand_cleanup(void) + { + return; + } + +/* ARGSUSED */ +static void pk11_rand_add(const void *buf, int num, double add) + { + PK11_SESSION *sp; + + if ((sp = pk11_get_session(OP_RAND)) == NULL) + return; + + /* + * Ignore any errors (e.g. CKR_RANDOM_SEED_NOT_SUPPORTED) since + * the calling functions do not care anyway + */ + pFuncList->C_SeedRandom(sp->session, (unsigned char *) buf, num); + pk11_return_session(sp, OP_RAND); + + return; + } + +static void pk11_rand_seed(const void *buf, int num) + { + pk11_rand_add(buf, num, 0); + } + +static int pk11_rand_bytes(unsigned char *buf, int num) + { + CK_RV rv; + PK11_SESSION *sp; + + if ((sp = pk11_get_session(OP_RAND)) == NULL) + return (0); + + rv = pFuncList->C_GenerateRandom(sp->session, buf, num); + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_RAND_BYTES, PK11_R_GENERATERANDOM, rv); + pk11_return_session(sp, OP_RAND); + return (0); + } + + pk11_return_session(sp, OP_RAND); + return (1); + } + +/* Required function by the engine random interface. It does nothing here */ +static int pk11_rand_status(void) + { + return (1); + } + +/* Free all BIGNUM structures from PK11_SESSION. */ +static void pk11_free_nums(PK11_SESSION *sp, PK11_OPTYPE optype) + { + switch (optype) + { +#ifndef OPENSSL_NO_RSA + case OP_RSA: + if (sp->opdata_rsa_n_num != NULL) + { + BN_free(sp->opdata_rsa_n_num); + sp->opdata_rsa_n_num = NULL; + } + if (sp->opdata_rsa_e_num != NULL) + { + BN_free(sp->opdata_rsa_e_num); + sp->opdata_rsa_e_num = NULL; + } + if (sp->opdata_rsa_d_num != NULL) + { + BN_free(sp->opdata_rsa_d_num); + sp->opdata_rsa_d_num = NULL; + } + break; +#endif +#ifndef OPENSSL_NO_DSA + case OP_DSA: + if (sp->opdata_dsa_pub_num != NULL) + { + BN_free(sp->opdata_dsa_pub_num); + sp->opdata_dsa_pub_num = NULL; + } + if (sp->opdata_dsa_priv_num != NULL) + { + BN_free(sp->opdata_dsa_priv_num); + sp->opdata_dsa_priv_num = NULL; + } + break; +#endif +#ifndef OPENSSL_NO_DH + case OP_DH: + if (sp->opdata_dh_priv_num != NULL) + { + BN_free(sp->opdata_dh_priv_num); + sp->opdata_dh_priv_num = NULL; + } + break; +#endif + default: + break; + } + } + +/* + * Get new PK11_SESSION structure ready for use. Every process must have + * its own freelist of PK11_SESSION structures so handle fork() here + * by destroying the old and creating new freelist. + * The returned PK11_SESSION structure is disconnected from the freelist. + */ +PK11_SESSION * +pk11_get_session(PK11_OPTYPE optype) + { + PK11_SESSION *sp = NULL, *sp1, *freelist; + pthread_mutex_t *freelist_lock; + static pid_t pid = 0; + pid_t new_pid; + CK_RV rv; + + switch (optype) + { + case OP_RSA: + case OP_DSA: + case OP_DH: + case OP_RAND: + case OP_DIGEST: + case OP_CIPHER: + freelist_lock = session_cache[optype].lock; + break; + default: + PK11err(PK11_F_GET_SESSION, + PK11_R_INVALID_OPERATION_TYPE); + return (NULL); + } + (void) pthread_mutex_lock(freelist_lock); + + /* + * Will use it to find out if we forked. We cannot use the PID field in + * the session structure because we could get a newly allocated session + * here, with no PID information. + */ + if (pid == 0) + pid = getpid(); + + freelist = session_cache[optype].head; + sp = freelist; + + /* + * If the free list is empty, allocate new uninitialized (filled + * with zeroes) PK11_SESSION structure otherwise return first + * structure from the freelist. + */ + if (sp == NULL) + { + if ((sp = OPENSSL_malloc(sizeof (PK11_SESSION))) == NULL) + { + PK11err(PK11_F_GET_SESSION, + PK11_R_MALLOC_FAILURE); + goto err; + } + (void) memset(sp, 0, sizeof (PK11_SESSION)); + + /* + * It is a new session so it will look like a cache miss to the + * code below. So, we must not try to to destroy its members so + * mark them as unused. + */ + sp->opdata_rsa_priv_key = CK_INVALID_HANDLE; + sp->opdata_rsa_pub_key = CK_INVALID_HANDLE; + } + else + freelist = sp->next; + + /* + * Check whether we have forked. In that case, we must get rid of all + * inherited sessions and start allocating new ones. + */ + if (pid != (new_pid = getpid())) + { + pid = new_pid; + + /* + * We are a new process and thus need to free any inherited + * PK11_SESSION objects aside from the first session (sp) which + * is the only PK11_SESSION structure we will reuse (for the + * head of the list). + */ + while ((sp1 = freelist) != NULL) + { + freelist = sp1->next; + /* + * NOTE: we do not want to call pk11_free_all_sessions() + * here because it would close underlying PKCS#11 + * sessions and destroy all objects. + */ + pk11_free_nums(sp1, optype); + OPENSSL_free(sp1); + } + + /* we have to free the active list as well. */ + pk11_free_active_list(optype); + + /* Initialize the process */ + rv = pFuncList->C_Initialize(NULL_PTR); + if ((rv != CKR_OK) && (rv != CKR_CRYPTOKI_ALREADY_INITIALIZED)) + { + PK11err_add_data(PK11_F_GET_SESSION, PK11_R_INITIALIZE, + rv); + OPENSSL_free(sp); + sp = NULL; + goto err; + } + + /* + * Choose slot here since the slot table is different on this + * process. If we are here then we must have found at least one + * usable slot before so we don't need to check any_slot_found. + * See pk11_library_init()'s usage of this function for more + * information. + */ +#ifdef SOLARIS_HW_SLOT_SELECTION + if (check_hw_mechanisms() == 0) + goto err; +#endif /* SOLARIS_HW_SLOT_SELECTION */ + if (pk11_choose_slots(NULL) == 0) + goto err; + + /* Open the global_session for the new process */ + rv = pFuncList->C_OpenSession(SLOTID, CKF_SERIAL_SESSION, + NULL_PTR, NULL_PTR, &global_session); + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_GET_SESSION, PK11_R_OPENSESSION, + rv); + OPENSSL_free(sp); + sp = NULL; + goto err; + } + + /* + * It is an inherited session from our parent so it needs + * re-initialization. + */ + if (pk11_setup_session(sp, optype) == 0) + { + OPENSSL_free(sp); + sp = NULL; + goto err; + } + if (pk11_token_relogin(sp->session) == 0) + { + /* + * We will keep the session in the cache list and let + * the caller cope with the situation. + */ + freelist = sp; + sp = NULL; + goto err; + } + } + + if (sp->pid == 0) + { + /* It is a new session and needs initialization. */ + if (pk11_setup_session(sp, optype) == 0) + { + OPENSSL_free(sp); + sp = NULL; + } + } + + /* set new head for the list of PK11_SESSION objects */ + session_cache[optype].head = freelist; + +err: + if (sp != NULL) + sp->next = NULL; + + (void) pthread_mutex_unlock(freelist_lock); + + return (sp); + } + + +void +pk11_return_session(PK11_SESSION *sp, PK11_OPTYPE optype) + { + pthread_mutex_t *freelist_lock; + PK11_SESSION *freelist; + + /* + * If this is a session from the parent it will be taken care of and + * freed in pk11_get_session() as part of the post-fork clean up the + * next time we will ask for a new session. + */ + if (sp == NULL || sp->pid != getpid()) + return; + + switch (optype) + { + case OP_RSA: + case OP_DSA: + case OP_DH: + case OP_RAND: + case OP_DIGEST: + case OP_CIPHER: + freelist_lock = session_cache[optype].lock; + break; + default: + PK11err(PK11_F_RETURN_SESSION, + PK11_R_INVALID_OPERATION_TYPE); + return; + } + + (void) pthread_mutex_lock(freelist_lock); + freelist = session_cache[optype].head; + sp->next = freelist; + session_cache[optype].head = sp; + (void) pthread_mutex_unlock(freelist_lock); + } + + +/* Destroy all objects. This function is called when the engine is finished */ +static int pk11_free_all_sessions() + { + int ret = 1; + int type; + +#ifndef OPENSSL_NO_RSA + (void) pk11_destroy_rsa_key_objects(NULL); +#endif /* OPENSSL_NO_RSA */ +#ifndef OPENSSL_NO_DSA + (void) pk11_destroy_dsa_key_objects(NULL); +#endif /* OPENSSL_NO_DSA */ +#ifndef OPENSSL_NO_DH + (void) pk11_destroy_dh_key_objects(NULL); +#endif /* OPENSSL_NO_DH */ + (void) pk11_destroy_cipher_key_objects(NULL); + + /* + * We try to release as much as we can but any error means that we will + * return 0 on exit. + */ + for (type = 0; type < OP_MAX; type++) + { + if (pk11_free_session_list(type) == 0) + ret = 0; + } + + return (ret); + } + +/* + * Destroy session structures from the linked list specified. Free as many + * sessions as possible but any failure in C_CloseSession() means that we + * return an error on return. + */ +static int pk11_free_session_list(PK11_OPTYPE optype) + { + CK_RV rv; + PK11_SESSION *sp = NULL; + PK11_SESSION *freelist = NULL; + pid_t mypid = getpid(); + pthread_mutex_t *freelist_lock; + int ret = 1; + + switch (optype) + { + case OP_RSA: + case OP_DSA: + case OP_DH: + case OP_RAND: + case OP_DIGEST: + case OP_CIPHER: + freelist_lock = session_cache[optype].lock; + break; + default: + PK11err(PK11_F_FREE_ALL_SESSIONS, + PK11_R_INVALID_OPERATION_TYPE); + return (0); + } + + (void) pthread_mutex_lock(freelist_lock); + freelist = session_cache[optype].head; + while ((sp = freelist) != NULL) + { + if (sp->session != CK_INVALID_HANDLE && sp->pid == mypid) + { + rv = pFuncList->C_CloseSession(sp->session); + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_FREE_ALL_SESSIONS, + PK11_R_CLOSESESSION, rv); + ret = 0; + } + } + freelist = sp->next; + pk11_free_nums(sp, optype); + OPENSSL_free(sp); + } + + (void) pthread_mutex_unlock(freelist_lock); + return (ret); + } + + +static int +pk11_setup_session(PK11_SESSION *sp, PK11_OPTYPE optype) + { + CK_RV rv; + CK_SLOT_ID myslot; + + switch (optype) + { + case OP_RSA: + case OP_DSA: + case OP_DH: + myslot = pubkey_SLOTID; + break; + case OP_RAND: + myslot = rand_SLOTID; + break; + case OP_DIGEST: + case OP_CIPHER: + myslot = SLOTID; + break; + default: + PK11err(PK11_F_SETUP_SESSION, + PK11_R_INVALID_OPERATION_TYPE); + return (0); + } + + sp->session = CK_INVALID_HANDLE; + DEBUG_SLOT_SEL("%s: myslot=%d optype=%d\n", PK11_DBG, myslot, optype); + rv = pFuncList->C_OpenSession(myslot, CKF_SERIAL_SESSION, + NULL_PTR, NULL_PTR, &sp->session); + if (rv == CKR_CRYPTOKI_NOT_INITIALIZED) + { + /* + * We are probably a child process so force the + * reinitialize of the session + */ + pk11_library_initialized = CK_FALSE; + if (!pk11_library_init(NULL)) + return (0); + rv = pFuncList->C_OpenSession(myslot, CKF_SERIAL_SESSION, + NULL_PTR, NULL_PTR, &sp->session); + } + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_SETUP_SESSION, PK11_R_OPENSESSION, rv); + return (0); + } + + sp->pid = getpid(); + + switch (optype) + { +#ifndef OPENSSL_NO_RSA + case OP_RSA: + sp->opdata_rsa_pub_key = CK_INVALID_HANDLE; + sp->opdata_rsa_priv_key = CK_INVALID_HANDLE; + sp->opdata_rsa_pub = NULL; + sp->opdata_rsa_n_num = NULL; + sp->opdata_rsa_e_num = NULL; + sp->opdata_rsa_priv = NULL; + sp->opdata_rsa_d_num = NULL; + break; +#endif /* OPENSSL_NO_RSA */ +#ifndef OPENSSL_NO_DSA + case OP_DSA: + sp->opdata_dsa_pub_key = CK_INVALID_HANDLE; + sp->opdata_dsa_priv_key = CK_INVALID_HANDLE; + sp->opdata_dsa_pub = NULL; + sp->opdata_dsa_pub_num = NULL; + sp->opdata_dsa_priv = NULL; + sp->opdata_dsa_priv_num = NULL; + break; +#endif /* OPENSSL_NO_DSA */ +#ifndef OPENSSL_NO_DH + case OP_DH: + sp->opdata_dh_key = CK_INVALID_HANDLE; + sp->opdata_dh = NULL; + sp->opdata_dh_priv_num = NULL; + break; +#endif /* OPENSSL_NO_DH */ + case OP_CIPHER: + sp->opdata_cipher_key = CK_INVALID_HANDLE; + sp->opdata_encrypt = -1; + break; + } + + /* + * We always initialize the session as containing a non-persistent + * object. The key load functions set it to persistent if that is so. + */ + sp->persistent = CK_FALSE; + return (1); + } + +#ifndef OPENSSL_NO_RSA +/* + * Destroy all non-NULL RSA parameters. For the RSA keys by reference code, + * public components 'n'/'e' are the key components we use to check for the + * cache hit even for the private keys. So, no matter whether we are destroying + * a public or a private key, we always free what we can. + */ +static void +destroy_all_rsa_params(PK11_SESSION *sp) + { + if (sp->opdata_rsa_n_num != NULL) + { + BN_free(sp->opdata_rsa_n_num); + sp->opdata_rsa_n_num = NULL; + } + if (sp->opdata_rsa_e_num != NULL) + { + BN_free(sp->opdata_rsa_e_num); + sp->opdata_rsa_e_num = NULL; + } + if (sp->opdata_rsa_d_num != NULL) + { + BN_free(sp->opdata_rsa_d_num); + sp->opdata_rsa_d_num = NULL; + } + } + +/* Destroy RSA public key from single session. */ +int +pk11_destroy_rsa_object_pub(PK11_SESSION *sp, CK_BBOOL uselock) + { + int ret = 0; + + if (sp->opdata_rsa_pub_key != CK_INVALID_HANDLE) + { + TRY_OBJ_DESTROY(sp, sp->opdata_rsa_pub_key, + ret, uselock, OP_RSA); + sp->opdata_rsa_pub_key = CK_INVALID_HANDLE; + sp->opdata_rsa_pub = NULL; + destroy_all_rsa_params(sp); + } + + return (ret); + } + +/* Destroy RSA private key from single session. */ +int +pk11_destroy_rsa_object_priv(PK11_SESSION *sp, CK_BBOOL uselock) + { + int ret = 0; + + if (sp->opdata_rsa_priv_key != CK_INVALID_HANDLE) + { + TRY_OBJ_DESTROY(sp, sp->opdata_rsa_priv_key, + ret, uselock, OP_RSA); + sp->opdata_rsa_priv_key = CK_INVALID_HANDLE; + sp->opdata_rsa_priv = NULL; + destroy_all_rsa_params(sp); + } + + return (ret); + } + +/* + * Destroy RSA key object wrapper. If session is NULL, try to destroy all + * objects in the free list. + */ +int +pk11_destroy_rsa_key_objects(PK11_SESSION *session) + { + int ret = 1; + PK11_SESSION *sp = NULL; + PK11_SESSION *local_free_session; + CK_BBOOL uselock = CK_TRUE; + + if (session != NULL) + local_free_session = session; + else + { + (void) pthread_mutex_lock(session_cache[OP_RSA].lock); + local_free_session = session_cache[OP_RSA].head; + uselock = CK_FALSE; + } + + /* + * go through the list of sessions and delete key objects + */ + while ((sp = local_free_session) != NULL) + { + local_free_session = sp->next; + + /* + * Do not terminate list traversal if one of the + * destroy operations fails. + */ + if (pk11_destroy_rsa_object_pub(sp, uselock) == 0) + { + ret = 0; + continue; + } + if (pk11_destroy_rsa_object_priv(sp, uselock) == 0) + { + ret = 0; + continue; + } + } + + if (session == NULL) + (void) pthread_mutex_unlock(session_cache[OP_RSA].lock); + + return (ret); + } +#endif /* OPENSSL_NO_RSA */ + +#ifndef OPENSSL_NO_DSA +/* Destroy DSA public key from single session. */ +int +pk11_destroy_dsa_object_pub(PK11_SESSION *sp, CK_BBOOL uselock) + { + int ret = 0; + + if (sp->opdata_dsa_pub_key != CK_INVALID_HANDLE) + { + TRY_OBJ_DESTROY(sp, sp->opdata_dsa_pub_key, + ret, uselock, OP_DSA); + sp->opdata_dsa_pub_key = CK_INVALID_HANDLE; + sp->opdata_dsa_pub = NULL; + if (sp->opdata_dsa_pub_num != NULL) + { + BN_free(sp->opdata_dsa_pub_num); + sp->opdata_dsa_pub_num = NULL; + } + } + + return (ret); + } + +/* Destroy DSA private key from single session. */ +int +pk11_destroy_dsa_object_priv(PK11_SESSION *sp, CK_BBOOL uselock) + { + int ret = 0; + + if (sp->opdata_dsa_priv_key != CK_INVALID_HANDLE) + { + TRY_OBJ_DESTROY(sp, sp->opdata_dsa_priv_key, + ret, uselock, OP_DSA); + sp->opdata_dsa_priv_key = CK_INVALID_HANDLE; + sp->opdata_dsa_priv = NULL; + if (sp->opdata_dsa_priv_num != NULL) + { + BN_free(sp->opdata_dsa_priv_num); + sp->opdata_dsa_priv_num = NULL; + } + } + + return (ret); + } + +/* + * Destroy DSA key object wrapper. If session is NULL, try to destroy all + * objects in the free list. + */ +int +pk11_destroy_dsa_key_objects(PK11_SESSION *session) + { + int ret = 1; + PK11_SESSION *sp = NULL; + PK11_SESSION *local_free_session; + CK_BBOOL uselock = CK_TRUE; + + if (session != NULL) + local_free_session = session; + else + { + (void) pthread_mutex_lock(session_cache[OP_DSA].lock); + local_free_session = session_cache[OP_DSA].head; + uselock = CK_FALSE; + } + + /* + * go through the list of sessions and delete key objects + */ + while ((sp = local_free_session) != NULL) + { + local_free_session = sp->next; + + /* + * Do not terminate list traversal if one of the + * destroy operations fails. + */ + if (pk11_destroy_dsa_object_pub(sp, uselock) == 0) + { + ret = 0; + continue; + } + if (pk11_destroy_dsa_object_priv(sp, uselock) == 0) + { + ret = 0; + continue; + } + } + + if (session == NULL) + (void) pthread_mutex_unlock(session_cache[OP_DSA].lock); + + return (ret); + } +#endif /* OPENSSL_NO_DSA */ + +#ifndef OPENSSL_NO_DH +/* Destroy DH key from single session. */ +int +pk11_destroy_dh_object(PK11_SESSION *sp, CK_BBOOL uselock) + { + int ret = 0; + + if (sp->opdata_dh_key != CK_INVALID_HANDLE) + { + TRY_OBJ_DESTROY(sp, sp->opdata_dh_key, + ret, uselock, OP_DH); + sp->opdata_dh_key = CK_INVALID_HANDLE; + sp->opdata_dh = NULL; + if (sp->opdata_dh_priv_num != NULL) + { + BN_free(sp->opdata_dh_priv_num); + sp->opdata_dh_priv_num = NULL; + } + } + + return (ret); + } + +/* + * Destroy DH key object wrapper. + * + * arg0: pointer to PKCS#11 engine session structure + * if session is NULL, try to destroy all objects in the free list + */ +int +pk11_destroy_dh_key_objects(PK11_SESSION *session) + { + int ret = 1; + PK11_SESSION *sp = NULL; + PK11_SESSION *local_free_session; + CK_BBOOL uselock = CK_TRUE; + + if (session != NULL) + local_free_session = session; + else + { + (void) pthread_mutex_lock(session_cache[OP_DH].lock); + local_free_session = session_cache[OP_DH].head; + uselock = CK_FALSE; + } + + while ((sp = local_free_session) != NULL) + { + local_free_session = sp->next; + + /* + * Do not terminate list traversal if one of the + * destroy operations fails. + */ + if (pk11_destroy_dh_object(sp, uselock) == 0) + { + ret = 0; + continue; + } + } +err: + if (session == NULL) + (void) pthread_mutex_unlock(session_cache[OP_DH].lock); + + return (ret); + } +#endif /* OPENSSL_NO_DH */ + +static int +pk11_destroy_object(CK_SESSION_HANDLE session, CK_OBJECT_HANDLE oh, + CK_BBOOL persistent) + { + CK_RV rv; + + /* + * We never try to destroy persistent objects which are the objects + * stored in the keystore. Also, we always use read-only sessions so + * C_DestroyObject() would be returning CKR_SESSION_READ_ONLY here. + */ + if (persistent == CK_TRUE) + return (1); + + rv = pFuncList->C_DestroyObject(session, oh); + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_DESTROY_OBJECT, PK11_R_DESTROYOBJECT, + rv); + return (0); + } + + return (1); + } + + +/* Symmetric ciphers and digests support functions */ + +static int +cipher_nid_to_pk11(int nid) + { + int i; + + for (i = 0; i < PK11_CIPHER_MAX; i++) + if (ciphers[i].nid == nid) + return (ciphers[i].id); + return (-1); + } + +static int +pk11_usable_ciphers(const int **nids) + { + if (cipher_count > 0) + *nids = cipher_nids; + else + *nids = NULL; + return (cipher_count); + } + +static int +pk11_usable_digests(const int **nids) + { + if (digest_count > 0) + *nids = digest_nids; + else + *nids = NULL; + return (digest_count); + } + +/* + * Init context for encryption or decryption using a symmetric key. + */ +static int pk11_init_symmetric(EVP_CIPHER_CTX *ctx, PK11_CIPHER *pcipher, + PK11_SESSION *sp, CK_MECHANISM_PTR pmech) + { + CK_RV rv; +#ifdef SOLARIS_AES_CTR + CK_AES_CTR_PARAMS ctr_params; +#endif /* SOLARIS_AES_CTR */ + + /* + * We expect pmech->mechanism to be already set and + * pParameter/ulParameterLen initialized to NULL/0 before + * pk11_init_symmetric() is called. + */ + OPENSSL_assert(pmech->mechanism != NULL); + OPENSSL_assert(pmech->pParameter == NULL); + OPENSSL_assert(pmech->ulParameterLen == 0); + +#ifdef SOLARIS_AES_CTR + if (ctx->cipher->nid == NID_aes_128_ctr || + ctx->cipher->nid == NID_aes_192_ctr || + ctx->cipher->nid == NID_aes_256_ctr) + { + pmech->pParameter = (void *)(&ctr_params); + pmech->ulParameterLen = sizeof (ctr_params); + /* + * For now, we are limited to the fixed length of the counter, + * it covers the whole counter block. That's what RFC 4344 + * needs. For more information on internal structure of the + * counter block, see RFC 3686. If needed in the future, we can + * add code so that the counter length can be set via + * ENGINE_ctrl() function. + */ + ctr_params.ulCounterBits = AES_BLOCK_SIZE * 8; + OPENSSL_assert(pcipher->iv_len == AES_BLOCK_SIZE); + (void) memcpy(ctr_params.cb, ctx->iv, AES_BLOCK_SIZE); + } + else +#endif /* SOLARIS_AES_CTR */ + { + if (pcipher->iv_len > 0) + { + pmech->pParameter = (void *)ctx->iv; + pmech->ulParameterLen = pcipher->iv_len; + } + } + + /* if we get here, the encryption needs to be reinitialized */ + if (ctx->encrypt) + rv = pFuncList->C_EncryptInit(sp->session, pmech, + sp->opdata_cipher_key); + else + rv = pFuncList->C_DecryptInit(sp->session, pmech, + sp->opdata_cipher_key); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_CIPHER_INIT, ctx->encrypt ? + PK11_R_ENCRYPTINIT : PK11_R_DECRYPTINIT, rv); + pk11_return_session(sp, OP_CIPHER); + return (0); + } + + return (1); + } + +/* ARGSUSED */ +static int +pk11_cipher_init(EVP_CIPHER_CTX *ctx, const unsigned char *key, + const unsigned char *iv, int enc) + { + CK_MECHANISM mech; + int index; + PK11_CIPHER_STATE *state = (PK11_CIPHER_STATE *) ctx->cipher_data; + PK11_SESSION *sp; + PK11_CIPHER *p_ciph_table_row; + + state->sp = NULL; + + index = cipher_nid_to_pk11(ctx->cipher->nid); + if (index < 0 || index >= PK11_CIPHER_MAX) + return (0); + + p_ciph_table_row = &ciphers[index]; + /* + * iv_len in the ctx->cipher structure is the maximum IV length for the + * current cipher and it must be less or equal to the IV length in our + * ciphers table. The key length must be in the allowed interval. From + * all cipher modes that the PKCS#11 engine supports only RC4 allows a + * key length to be in some range, all other NIDs have a precise key + * length. Every application can define its own EVP functions so this + * code serves as a sanity check. + * + * Note that the reason why the IV length in ctx->cipher might be + * greater than the actual length is that OpenSSL uses BLOCK_CIPHER_defs + * macro to define functions that return EVP structures for all DES + * modes. So, even ECB modes get 8 byte IV. + */ + if (ctx->cipher->iv_len < p_ciph_table_row->iv_len || + ctx->key_len < p_ciph_table_row->min_key_len || + ctx->key_len > p_ciph_table_row->max_key_len) { + PK11err(PK11_F_CIPHER_INIT, PK11_R_KEY_OR_IV_LEN_PROBLEM); + return (0); + } + + if ((sp = pk11_get_session(OP_CIPHER)) == NULL) + return (0); + + /* if applicable, the mechanism parameter is used for IV */ + mech.mechanism = p_ciph_table_row->mech_type; + mech.pParameter = NULL; + mech.ulParameterLen = 0; + + /* The key object is destroyed here if it is not the current key. */ + (void) check_new_cipher_key(sp, key, ctx->key_len); + + /* + * If the key is the same and the encryption is also the same, then + * just reuse it. However, we must not forget to reinitialize the + * context that was finalized in pk11_cipher_cleanup(). + */ + if (sp->opdata_cipher_key != CK_INVALID_HANDLE && + sp->opdata_encrypt == ctx->encrypt) + { + state->sp = sp; + if (pk11_init_symmetric(ctx, p_ciph_table_row, sp, &mech) == 0) + return (0); + + return (1); + } + + /* + * Check if the key has been invalidated. If so, a new key object + * needs to be created. + */ + if (sp->opdata_cipher_key == CK_INVALID_HANDLE) + { + sp->opdata_cipher_key = pk11_get_cipher_key( + ctx, key, p_ciph_table_row->key_type, sp); + } + + if (sp->opdata_encrypt != ctx->encrypt && sp->opdata_encrypt != -1) + { + /* + * The previous encryption/decryption is different. Need to + * terminate the previous * active encryption/decryption here. + */ + if (!pk11_cipher_final(sp)) + { + pk11_return_session(sp, OP_CIPHER); + return (0); + } + } + + if (sp->opdata_cipher_key == CK_INVALID_HANDLE) + { + pk11_return_session(sp, OP_CIPHER); + return (0); + } + + /* now initialize the context with a new key */ + if (pk11_init_symmetric(ctx, p_ciph_table_row, sp, &mech) == 0) + return (0); + + sp->opdata_encrypt = ctx->encrypt; + state->sp = sp; + + return (1); + } + +/* + * When reusing the same key in an encryption/decryption session for a + * decryption/encryption session, we need to close the active session + * and recreate a new one. Note that the key is in the global session so + * that it needs not be recreated. + * + * It is more appropriate to use C_En/DecryptFinish here. At the time of this + * development, these two functions in the PKCS#11 libraries used return + * unexpected errors when passing in 0 length output. It may be a good + * idea to try them again if performance is a problem here and fix + * C_En/DecryptFinial if there are bugs there causing the problem. + */ +static int +pk11_cipher_final(PK11_SESSION *sp) + { + CK_RV rv; + + rv = pFuncList->C_CloseSession(sp->session); + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_CIPHER_FINAL, PK11_R_CLOSESESSION, rv); + return (0); + } + + rv = pFuncList->C_OpenSession(SLOTID, CKF_SERIAL_SESSION, + NULL_PTR, NULL_PTR, &sp->session); + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_CIPHER_FINAL, PK11_R_OPENSESSION, rv); + return (0); + } + + return (1); + } + +/* + * An engine interface function. The calling function allocates sufficient + * memory for the output buffer "out" to hold the results. + */ +static int +pk11_cipher_do_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t inl) + { + PK11_CIPHER_STATE *state = (PK11_CIPHER_STATE *) ctx->cipher_data; + PK11_SESSION *sp; + CK_RV rv; + unsigned long outl = inl; + + if (state == NULL || state->sp == NULL) + return (0); + + sp = (PK11_SESSION *) state->sp; + + if (!inl) + return (1); + + /* RC4 is the only stream cipher we support */ + if (ctx->cipher->nid != NID_rc4 && (inl % ctx->cipher->block_size) != 0) + return (0); + + if (ctx->encrypt) + { + rv = pFuncList->C_EncryptUpdate(sp->session, + (unsigned char *)in, inl, out, &outl); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_CIPHER_DO_CIPHER, + PK11_R_ENCRYPTUPDATE, rv); + return (0); + } + } + else + { + rv = pFuncList->C_DecryptUpdate(sp->session, + (unsigned char *)in, inl, out, &outl); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_CIPHER_DO_CIPHER, + PK11_R_DECRYPTUPDATE, rv); + return (0); + } + } + + /* + * For DES_CBC, DES3_CBC, AES_CBC, and RC4, the output size is always + * the same size of input. + * The application has guaranteed to call the block ciphers with + * correctly aligned buffers. + */ + if (inl != outl) + return (0); + + return (1); + } + +/* + * Return the session to the pool. Calling C_EncryptFinal() and C_DecryptFinal() + * here is the right thing because in EVP_DecryptFinal_ex(), engine's + * do_cipher() is not even called, and in EVP_EncryptFinal_ex() it is called but + * the engine can't find out that it's the finalizing call. We wouldn't + * necessarily have to finalize the context here since reinitializing it with + * C_(Encrypt|Decrypt)Init() should be fine but for the sake of correctness, + * let's do it. Some implementations might leak memory if the previously used + * context is initialized without finalizing it first. + */ +static int +pk11_cipher_cleanup(EVP_CIPHER_CTX *ctx) + { + CK_RV rv; + CK_ULONG len = EVP_MAX_BLOCK_LENGTH; + CK_BYTE buf[EVP_MAX_BLOCK_LENGTH]; + PK11_CIPHER_STATE *state = ctx->cipher_data; + + if (state != NULL && state->sp != NULL) + { + /* + * We are not interested in the data here, we just need to get + * rid of the context. + */ + if (ctx->encrypt) + rv = pFuncList->C_EncryptFinal( + state->sp->session, buf, &len); + else + rv = pFuncList->C_DecryptFinal( + state->sp->session, buf, &len); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_CIPHER_CLEANUP, ctx->encrypt ? + PK11_R_ENCRYPTFINAL : PK11_R_DECRYPTFINAL, rv); + pk11_return_session(state->sp, OP_CIPHER); + return (0); + } + + pk11_return_session(state->sp, OP_CIPHER); + state->sp = NULL; + } + + return (1); + } + +/* + * 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 + */ +/* ARGSUSED */ +static int +pk11_engine_ciphers(ENGINE *e, const EVP_CIPHER **cipher, + const int **nids, int nid) + { + if (!cipher) + return (pk11_usable_ciphers(nids)); + + switch (nid) + { + case NID_des_ede3_cbc: + *cipher = &pk11_3des_cbc; + break; + case NID_des_cbc: + *cipher = &pk11_des_cbc; + break; + case NID_des_ede3_ecb: + *cipher = &pk11_3des_ecb; + break; + case NID_des_ecb: + *cipher = &pk11_des_ecb; + break; + case NID_aes_128_cbc: + *cipher = &pk11_aes_128_cbc; + break; + case NID_aes_192_cbc: + *cipher = &pk11_aes_192_cbc; + break; + case NID_aes_256_cbc: + *cipher = &pk11_aes_256_cbc; + break; + case NID_aes_128_ecb: + *cipher = &pk11_aes_128_ecb; + break; + case NID_aes_192_ecb: + *cipher = &pk11_aes_192_ecb; + break; + case NID_aes_256_ecb: + *cipher = &pk11_aes_256_ecb; + break; + case NID_bf_cbc: + *cipher = &pk11_bf_cbc; + break; + case NID_rc4: + *cipher = &pk11_rc4; + break; + default: +#ifdef SOLARIS_AES_CTR + /* + * These can't be in separated cases because the NIDs + * here are not constants. + */ + if (nid == NID_aes_128_ctr) + *cipher = &pk11_aes_128_ctr; + else if (nid == NID_aes_192_ctr) + *cipher = &pk11_aes_192_ctr; + else if (nid == NID_aes_256_ctr) + *cipher = &pk11_aes_256_ctr; + else +#endif /* SOLARIS_AES_CTR */ + *cipher = NULL; + break; + } + return (*cipher != NULL); + } + +/* ARGSUSED */ +static int +pk11_engine_digests(ENGINE *e, const EVP_MD **digest, + const int **nids, int nid) + { + if (!digest) + return (pk11_usable_digests(nids)); + + switch (nid) + { + case NID_md5: + *digest = &pk11_md5; + break; + /* + * A special case. For "openssl dgst -dss1 -engine pkcs11 ...", + * OpenSSL calls EVP_get_digestbyname() on "dss1" which ends up + * calling pk11_engine_digests() for NID_dsa. Internally, if an + * engine is not used, OpenSSL uses SHA1_Init() as expected for + * DSA. So, we must return pk11_sha1() for NID_dsa as well. Note + * that this must have changed between 0.9.8 and 1.0.0 since we + * did not have the problem with the 0.9.8 version. + */ + case NID_sha1: + case NID_dsa: + *digest = &pk11_sha1; + break; + case NID_sha224: + *digest = &pk11_sha224; + break; + case NID_sha256: + *digest = &pk11_sha256; + break; + case NID_sha384: + *digest = &pk11_sha384; + break; + case NID_sha512: + *digest = &pk11_sha512; + break; + default: + *digest = NULL; + break; + } + return (*digest != NULL); + } + + +/* Create a secret key object in a PKCS#11 session */ +static CK_OBJECT_HANDLE pk11_get_cipher_key(EVP_CIPHER_CTX *ctx, + const unsigned char *key, CK_KEY_TYPE key_type, PK11_SESSION *sp) + { + CK_RV rv; + CK_OBJECT_HANDLE h_key = CK_INVALID_HANDLE; + CK_OBJECT_CLASS obj_key = CKO_SECRET_KEY; + CK_ULONG ul_key_attr_count = 6; + + CK_ATTRIBUTE a_key_template[] = + { + {CKA_CLASS, (void*) NULL, sizeof (CK_OBJECT_CLASS)}, + {CKA_KEY_TYPE, (void*) NULL, sizeof (CK_KEY_TYPE)}, + {CKA_TOKEN, &pk11_false, sizeof (pk11_false)}, + {CKA_ENCRYPT, &pk11_true, sizeof (pk11_true)}, + {CKA_DECRYPT, &pk11_true, sizeof (pk11_true)}, + {CKA_VALUE, (void*) NULL, 0}, + }; + + /* + * Create secret key object in global_session. All other sessions + * can use the key handles. Here is why: + * OpenSSL will call EncryptInit and EncryptUpdate using a secret key. + * It may then call DecryptInit and DecryptUpdate using the same key. + * To use the same key object, we need to call EncryptFinal with + * a 0 length message. Currently, this does not work for 3DES + * mechanism. To get around this problem, we close the session and + * then create a new session to use the same key object. When a session + * is closed, all the object handles will be invalid. Thus, create key + * objects in a global session, an individual session may be closed to + * terminate the active operation. + */ + CK_SESSION_HANDLE session = global_session; + a_key_template[0].pValue = &obj_key; + a_key_template[1].pValue = &key_type; + a_key_template[5].pValue = (void *) key; + a_key_template[5].ulValueLen = (unsigned long) ctx->key_len; + + rv = pFuncList->C_CreateObject(session, + a_key_template, ul_key_attr_count, &h_key); + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_GET_CIPHER_KEY, PK11_R_CREATEOBJECT, + rv); + goto err; + } + + /* + * Save the key information used in this session. + * The max can be saved is PK11_KEY_LEN_MAX. + */ + sp->opdata_key_len = ctx->key_len > PK11_KEY_LEN_MAX ? + PK11_KEY_LEN_MAX : ctx->key_len; + (void) memcpy(sp->opdata_key, key, sp->opdata_key_len); +err: + + return (h_key); + } + +static int +md_nid_to_pk11(int nid) + { + int i; + + for (i = 0; i < PK11_DIGEST_MAX; i++) + if (digests[i].nid == nid) + return (digests[i].id); + return (-1); + } + +static int +pk11_digest_init(EVP_MD_CTX *ctx) + { + CK_RV rv; + CK_MECHANISM mech; + int index; + PK11_SESSION *sp; + PK11_DIGEST *pdp; + PK11_CIPHER_STATE *state = (PK11_CIPHER_STATE *) ctx->md_data; + + state->sp = NULL; + + index = md_nid_to_pk11(ctx->digest->type); + if (index < 0 || index >= PK11_DIGEST_MAX) + return (0); + + pdp = &digests[index]; + if ((sp = pk11_get_session(OP_DIGEST)) == NULL) + return (0); + + /* at present, no parameter is needed for supported digests */ + mech.mechanism = pdp->mech_type; + mech.pParameter = NULL; + mech.ulParameterLen = 0; + + rv = pFuncList->C_DigestInit(sp->session, &mech); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_DIGEST_INIT, PK11_R_DIGESTINIT, rv); + pk11_return_session(sp, OP_DIGEST); + return (0); + } + + state->sp = sp; + + return (1); + } + +static int +pk11_digest_update(EVP_MD_CTX *ctx, const void *data, size_t count) + { + CK_RV rv; + PK11_CIPHER_STATE *state = (PK11_CIPHER_STATE *) ctx->md_data; + + /* 0 length message will cause a failure in C_DigestFinal */ + if (count == 0) + return (1); + + if (state == NULL || state->sp == NULL) + return (0); + + rv = pFuncList->C_DigestUpdate(state->sp->session, (CK_BYTE *) data, + count); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_DIGEST_UPDATE, PK11_R_DIGESTUPDATE, rv); + pk11_return_session(state->sp, OP_DIGEST); + state->sp = NULL; + return (0); + } + + return (1); + } + +static int +pk11_digest_final(EVP_MD_CTX *ctx, unsigned char *md) + { + CK_RV rv; + unsigned long len; + PK11_CIPHER_STATE *state = (PK11_CIPHER_STATE *) ctx->md_data; + len = ctx->digest->md_size; + + if (state == NULL || state->sp == NULL) + return (0); + + rv = pFuncList->C_DigestFinal(state->sp->session, md, &len); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_DIGEST_FINAL, PK11_R_DIGESTFINAL, rv); + pk11_return_session(state->sp, OP_DIGEST); + state->sp = NULL; + return (0); + } + + if (ctx->digest->md_size != len) + return (0); + + /* + * Final is called and digest is returned, so return the session + * to the pool + */ + pk11_return_session(state->sp, OP_DIGEST); + state->sp = NULL; + + return (1); + } + +static int +pk11_digest_copy(EVP_MD_CTX *to, const EVP_MD_CTX *from) + { + CK_RV rv; + int ret = 0; + PK11_CIPHER_STATE *state, *state_to; + CK_BYTE_PTR pstate = NULL; + CK_ULONG ul_state_len; + + if (from->md_data == NULL || to->digest->ctx_size == 0) + return (1); + + /* The copy-from state */ + state = (PK11_CIPHER_STATE *) from->md_data; + if (state->sp == NULL) + goto err; + + /* Initialize the copy-to state */ + if (!pk11_digest_init(to)) + goto err; + state_to = (PK11_CIPHER_STATE *) to->md_data; + + /* Get the size of the operation state of the copy-from session */ + rv = pFuncList->C_GetOperationState(state->sp->session, NULL, + &ul_state_len); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_DIGEST_COPY, PK11_R_GET_OPERATION_STATE, + rv); + goto err; + } + if (ul_state_len == 0) + { + goto err; + } + + pstate = OPENSSL_malloc(ul_state_len); + if (pstate == NULL) + { + PK11err(PK11_F_DIGEST_COPY, PK11_R_MALLOC_FAILURE); + goto err; + } + + /* Get the operation state of the copy-from session */ + rv = pFuncList->C_GetOperationState(state->sp->session, pstate, + &ul_state_len); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_DIGEST_COPY, PK11_R_GET_OPERATION_STATE, + rv); + goto err; + } + + /* Set the operation state of the copy-to session */ + rv = pFuncList->C_SetOperationState(state_to->sp->session, pstate, + ul_state_len, 0, 0); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_DIGEST_COPY, + PK11_R_SET_OPERATION_STATE, rv); + goto err; + } + + ret = 1; +err: + if (pstate != NULL) + OPENSSL_free(pstate); + + return (ret); + } + +/* Return any pending session state to the pool */ +static int +pk11_digest_cleanup(EVP_MD_CTX *ctx) + { + PK11_CIPHER_STATE *state = ctx->md_data; + unsigned char buf[EVP_MAX_MD_SIZE]; + + if (state != NULL && state->sp != NULL) + { + /* + * If state->sp is not NULL then pk11_digest_final() has not + * been called yet. We must call it now to free any memory + * that might have been allocated in the token when + * pk11_digest_init() was called. pk11_digest_final() + * will return the session to the cache. + */ + if (!pk11_digest_final(ctx, buf)) + return (0); + } + + return (1); + } + +/* + * Check if the new key is the same as the key object in the session. If the key + * is the same, no need to create a new key object. Otherwise, the old key + * object needs to be destroyed and a new one will be created. Return 1 for + * cache hit, 0 for cache miss. Note that we must check the key length first + * otherwise we could end up reusing a different, longer key with the same + * prefix. + */ +static int check_new_cipher_key(PK11_SESSION *sp, const unsigned char *key, + int key_len) + { + if (sp->opdata_key_len != key_len || + memcmp(sp->opdata_key, key, key_len) != 0) + { + (void) pk11_destroy_cipher_key_objects(sp); + return (0); + } + return (1); + } + +/* Destroy one or more secret key objects. */ +static int pk11_destroy_cipher_key_objects(PK11_SESSION *session) + { + int ret = 0; + PK11_SESSION *sp = NULL; + PK11_SESSION *local_free_session; + + if (session != NULL) + local_free_session = session; + else + { + (void) pthread_mutex_lock(session_cache[OP_CIPHER].lock); + local_free_session = session_cache[OP_CIPHER].head; + } + + while ((sp = local_free_session) != NULL) + { + local_free_session = sp->next; + + if (sp->opdata_cipher_key != CK_INVALID_HANDLE) + { + /* + * The secret key object is created in the + * global_session. See pk11_get_cipher_key(). + */ + if (pk11_destroy_object(global_session, + sp->opdata_cipher_key, CK_FALSE) == 0) + goto err; + sp->opdata_cipher_key = CK_INVALID_HANDLE; + } + } + ret = 1; +err: + + if (session == NULL) + (void) pthread_mutex_unlock(session_cache[OP_CIPHER].lock); + + return (ret); + } + + +/* + * Public key mechanisms optionally supported + * + * CKM_RSA_X_509 + * CKM_RSA_PKCS + * CKM_DSA + * + * The first slot that supports at least one of those mechanisms is chosen as a + * public key slot. + * + * Symmetric ciphers optionally supported + * + * CKM_DES3_CBC + * CKM_DES_CBC + * CKM_AES_CBC + * CKM_DES3_ECB + * CKM_DES_ECB + * CKM_AES_ECB + * CKM_AES_CTR + * CKM_RC4 + * CKM_BLOWFISH_CBC + * + * Digests optionally supported + * + * CKM_MD5 + * CKM_SHA_1 + * CKM_SHA224 + * CKM_SHA256 + * CKM_SHA384 + * CKM_SHA512 + * + * The output of this function is a set of global variables indicating which + * mechanisms from RSA, DSA, DH and RAND are present, and also two arrays of + * mechanisms, one for symmetric ciphers and one for digests. Also, 3 global + * variables carry information about which slot was chosen for (a) public key + * mechanisms, (b) random operations, and (c) symmetric ciphers and digests. + */ +static int +pk11_choose_slots(int *any_slot_found) + { + CK_SLOT_ID_PTR pSlotList = NULL_PTR; + CK_ULONG ulSlotCount = 0; + CK_MECHANISM_INFO mech_info; + CK_TOKEN_INFO token_info; + int i; + CK_RV rv; + CK_SLOT_ID best_slot_sofar; + CK_BBOOL found_candidate_slot = CK_FALSE; + int slot_n_cipher = 0; + int slot_n_digest = 0; + CK_SLOT_ID current_slot = 0; + int current_slot_n_cipher = 0; + int current_slot_n_digest = 0; + + int local_cipher_nids[PK11_CIPHER_MAX]; + int local_digest_nids[PK11_DIGEST_MAX]; + + /* let's initialize the output parameter */ + if (any_slot_found != NULL) + *any_slot_found = 0; + + /* Get slot list for memory allocation */ + rv = pFuncList->C_GetSlotList(CK_FALSE, NULL_PTR, &ulSlotCount); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_CHOOSE_SLOT, PK11_R_GETSLOTLIST, rv); + return (0); + } + + /* it's not an error if we didn't find any providers */ + if (ulSlotCount == 0) + { + DEBUG_SLOT_SEL("%s: no crypto providers found\n", PK11_DBG); + return (1); + } + + pSlotList = OPENSSL_malloc(ulSlotCount * sizeof (CK_SLOT_ID)); + + if (pSlotList == NULL) + { + PK11err(PK11_F_CHOOSE_SLOT, PK11_R_MALLOC_FAILURE); + return (0); + } + + /* Get the slot list for processing */ + rv = pFuncList->C_GetSlotList(CK_FALSE, pSlotList, &ulSlotCount); + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_CHOOSE_SLOT, PK11_R_GETSLOTLIST, rv); + OPENSSL_free(pSlotList); + return (0); + } + + DEBUG_SLOT_SEL("%s: provider: %s\n", PK11_DBG, def_PK11_LIBNAME); + DEBUG_SLOT_SEL("%s: number of slots: %d\n", PK11_DBG, ulSlotCount); + + DEBUG_SLOT_SEL("%s: == checking rand slots ==\n", PK11_DBG); + for (i = 0; i < ulSlotCount; i++) + { + current_slot = pSlotList[i]; + + DEBUG_SLOT_SEL("%s: checking slot: %d\n", PK11_DBG, i); + /* Check if slot has random support. */ + rv = pFuncList->C_GetTokenInfo(current_slot, &token_info); + if (rv != CKR_OK) + continue; + + DEBUG_SLOT_SEL("%s: token label: %.32s\n", PK11_DBG, + token_info.label); + + if (token_info.flags & CKF_RNG) + { + DEBUG_SLOT_SEL( + "%s: this token has CKF_RNG flag\n", PK11_DBG); + pk11_have_random = CK_TRUE; + rand_SLOTID = current_slot; + break; + } + } + + DEBUG_SLOT_SEL("%s: == checking pubkey slots ==\n", PK11_DBG); + + pubkey_SLOTID = pSlotList[0]; + for (i = 0; i < ulSlotCount; i++) + { + CK_BBOOL slot_has_rsa = CK_FALSE; + CK_BBOOL slot_has_dsa = CK_FALSE; + CK_BBOOL slot_has_dh = CK_FALSE; + current_slot = pSlotList[i]; + + DEBUG_SLOT_SEL("%s: checking slot: %d\n", PK11_DBG, i); + rv = pFuncList->C_GetTokenInfo(current_slot, &token_info); + if (rv != CKR_OK) + continue; + + DEBUG_SLOT_SEL("%s: token label: %.32s\n", PK11_DBG, + token_info.label); + +#ifndef OPENSSL_NO_RSA + /* + * Check if this slot is capable of signing and + * verifying with CKM_RSA_PKCS. + */ + rv = pFuncList->C_GetMechanismInfo(current_slot, CKM_RSA_PKCS, + &mech_info); + + if (rv == CKR_OK && ((mech_info.flags & CKF_SIGN) && + (mech_info.flags & CKF_VERIFY))) + { + /* + * Check if this slot is capable of encryption, + * decryption, sign, and verify with CKM_RSA_X_509. + */ + rv = pFuncList->C_GetMechanismInfo(current_slot, + CKM_RSA_X_509, &mech_info); + + if (rv == CKR_OK && ((mech_info.flags & CKF_SIGN) && + (mech_info.flags & CKF_VERIFY) && + (mech_info.flags & CKF_ENCRYPT) && + (mech_info.flags & CKF_VERIFY_RECOVER) && + (mech_info.flags & CKF_DECRYPT))) + { + slot_has_rsa = CK_TRUE; + } + } +#endif /* OPENSSL_NO_RSA */ + +#ifndef OPENSSL_NO_DSA + /* + * Check if this slot is capable of signing and + * verifying with CKM_DSA. + */ + rv = pFuncList->C_GetMechanismInfo(current_slot, CKM_DSA, + &mech_info); + if (rv == CKR_OK && ((mech_info.flags & CKF_SIGN) && + (mech_info.flags & CKF_VERIFY))) + { + slot_has_dsa = CK_TRUE; + } + +#endif /* OPENSSL_NO_DSA */ + +#ifndef OPENSSL_NO_DH + /* + * Check if this slot is capable of DH key generataion and + * derivation. + */ + rv = pFuncList->C_GetMechanismInfo(current_slot, + CKM_DH_PKCS_KEY_PAIR_GEN, &mech_info); + + if (rv == CKR_OK && (mech_info.flags & CKF_GENERATE_KEY_PAIR)) + { + rv = pFuncList->C_GetMechanismInfo(current_slot, + CKM_DH_PKCS_DERIVE, &mech_info); + if (rv == CKR_OK && (mech_info.flags & CKF_DERIVE)) + { + slot_has_dh = CK_TRUE; + } + } +#endif /* OPENSSL_NO_DH */ + + if (!found_candidate_slot && + (slot_has_rsa || slot_has_dsa || slot_has_dh)) + { + DEBUG_SLOT_SEL( + "%s: potential slot: %d\n", PK11_DBG, current_slot); + best_slot_sofar = current_slot; + pk11_have_rsa = slot_has_rsa; + pk11_have_dsa = slot_has_dsa; + pk11_have_dh = slot_has_dh; + found_candidate_slot = CK_TRUE; + /* + * Cache the flags for later use. We might need those if + * RSA keys by reference feature is used. + */ + pubkey_token_flags = token_info.flags; + DEBUG_SLOT_SEL( + "%s: setting found_candidate_slot to CK_TRUE\n", + PK11_DBG); + DEBUG_SLOT_SEL("%s: best slot so far: %d\n", PK11_DBG, + best_slot_sofar); + DEBUG_SLOT_SEL("%s: pubkey flags changed to " + "%lu.\n", PK11_DBG, pubkey_token_flags); + } + else + { + DEBUG_SLOT_SEL("%s: no rsa/dsa/dh\n", PK11_DBG); + } + } /* for */ + + if (found_candidate_slot == CK_TRUE) + { + pubkey_SLOTID = best_slot_sofar; + } + + found_candidate_slot = CK_FALSE; + best_slot_sofar = 0; + + DEBUG_SLOT_SEL("%s: == checking cipher/digest ==\n", PK11_DBG); + + SLOTID = pSlotList[0]; + for (i = 0; i < ulSlotCount; i++) + { + DEBUG_SLOT_SEL("%s: checking slot: %d\n", PK11_DBG, i); + + current_slot = pSlotList[i]; + current_slot_n_cipher = 0; + current_slot_n_digest = 0; + (void) memset(local_cipher_nids, 0, sizeof (local_cipher_nids)); + (void) memset(local_digest_nids, 0, sizeof (local_digest_nids)); + + pk11_find_symmetric_ciphers(pFuncList, current_slot, + ¤t_slot_n_cipher, local_cipher_nids); + + pk11_find_digests(pFuncList, current_slot, + ¤t_slot_n_digest, local_digest_nids); + + DEBUG_SLOT_SEL("%s: current_slot_n_cipher %d\n", PK11_DBG, + current_slot_n_cipher); + DEBUG_SLOT_SEL("%s: current_slot_n_digest %d\n", PK11_DBG, + current_slot_n_digest); + DEBUG_SLOT_SEL("%s: best cipher/digest slot so far: %d\n", + PK11_DBG, best_slot_sofar); + + /* + * If the current slot supports more ciphers/digests than + * the previous best one we change the current best to this one, + * otherwise leave it where it is. + */ + if ((current_slot_n_cipher + current_slot_n_digest) > + (slot_n_cipher + slot_n_digest)) + { + DEBUG_SLOT_SEL("%s: changing best slot to %d\n", + PK11_DBG, current_slot); + best_slot_sofar = SLOTID = current_slot; + cipher_count = slot_n_cipher = current_slot_n_cipher; + digest_count = slot_n_digest = current_slot_n_digest; + (void) memcpy(cipher_nids, local_cipher_nids, + sizeof (local_cipher_nids)); + (void) memcpy(digest_nids, local_digest_nids, + sizeof (local_digest_nids)); + } + } + + DEBUG_SLOT_SEL("%s: chosen pubkey slot: %d\n", PK11_DBG, pubkey_SLOTID); + DEBUG_SLOT_SEL("%s: chosen rand slot: %d\n", PK11_DBG, rand_SLOTID); + DEBUG_SLOT_SEL("%s: chosen cipher/digest slot: %d\n", PK11_DBG, SLOTID); + DEBUG_SLOT_SEL("%s: pk11_have_rsa %d\n", PK11_DBG, pk11_have_rsa); + DEBUG_SLOT_SEL("%s: pk11_have_dsa %d\n", PK11_DBG, pk11_have_dsa); + DEBUG_SLOT_SEL("%s: pk11_have_dh %d\n", PK11_DBG, pk11_have_dh); + DEBUG_SLOT_SEL("%s: pk11_have_random %d\n", PK11_DBG, pk11_have_random); + DEBUG_SLOT_SEL("%s: cipher_count %d\n", PK11_DBG, cipher_count); + DEBUG_SLOT_SEL("%s: digest_count %d\n", PK11_DBG, digest_count); + + if (pSlotList != NULL) + OPENSSL_free(pSlotList); + +#ifdef SOLARIS_HW_SLOT_SELECTION + OPENSSL_free(hw_cnids); + OPENSSL_free(hw_dnids); +#endif /* SOLARIS_HW_SLOT_SELECTION */ + + if (any_slot_found != NULL) + *any_slot_found = 1; + return (1); + } + +static void pk11_get_symmetric_cipher(CK_FUNCTION_LIST_PTR pflist, + int slot_id, int *current_slot_n_cipher, int *local_cipher_nids, + PK11_CIPHER *cipher) + { + CK_MECHANISM_INFO mech_info; + CK_RV rv; + + DEBUG_SLOT_SEL("%s: checking mech: %x", PK11_DBG, cipher->mech_type); + rv = pflist->C_GetMechanismInfo(slot_id, cipher->mech_type, &mech_info); + + if (rv != CKR_OK) + { + DEBUG_SLOT_SEL(" not found\n"); + return; + } + + if ((mech_info.flags & CKF_ENCRYPT) && + (mech_info.flags & CKF_DECRYPT)) + { + if (mech_info.ulMinKeySize > cipher->min_key_len || + mech_info.ulMaxKeySize < cipher->max_key_len) + { + DEBUG_SLOT_SEL(" engine key size range <%i-%i> does not" + " match mech range <%lu-%lu>\n", + cipher->min_key_len, cipher->max_key_len, + mech_info.ulMinKeySize, mech_info.ulMaxKeySize); + return; + } +#ifdef SOLARIS_HW_SLOT_SELECTION + if (nid_in_table(cipher->nid, hw_cnids)) +#endif /* SOLARIS_HW_SLOT_SELECTION */ + { + DEBUG_SLOT_SEL(" usable\n"); + local_cipher_nids[(*current_slot_n_cipher)++] = + cipher->nid; + } +#ifdef SOLARIS_HW_SLOT_SELECTION + else + { + DEBUG_SLOT_SEL( + " rejected, software implementation only\n"); + } +#endif /* SOLARIS_HW_SLOT_SELECTION */ + } + else + { + DEBUG_SLOT_SEL(" unusable\n"); + } + + return; + } + +static void pk11_get_digest(CK_FUNCTION_LIST_PTR pflist, int slot_id, + int *current_slot_n_digest, int *local_digest_nids, PK11_DIGEST *digest) + { + CK_MECHANISM_INFO mech_info; + CK_RV rv; + + DEBUG_SLOT_SEL("%s: checking mech: %x", PK11_DBG, digest->mech_type); + rv = pflist->C_GetMechanismInfo(slot_id, digest->mech_type, &mech_info); + + if (rv != CKR_OK) + { + DEBUG_SLOT_SEL(" not found\n"); + return; + } + + if (mech_info.flags & CKF_DIGEST) + { +#ifdef SOLARIS_HW_SLOT_SELECTION + if (nid_in_table(digest->nid, hw_dnids)) +#endif /* SOLARIS_HW_SLOT_SELECTION */ + { + DEBUG_SLOT_SEL(" usable\n"); + local_digest_nids[(*current_slot_n_digest)++] = + digest->nid; + } +#ifdef SOLARIS_HW_SLOT_SELECTION + else + { + DEBUG_SLOT_SEL( + " rejected, software implementation only\n"); + } +#endif /* SOLARIS_HW_SLOT_SELECTION */ + } + else + { + DEBUG_SLOT_SEL(" unusable\n"); + } + + return; + } + +#ifdef SOLARIS_AES_CTR +/* create a new NID when we have no OID for that mechanism */ +static int pk11_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); + } + + /* will return NID_undef on error */ + nid = OBJ_add_object(o); + ASN1_OBJECT_free(o); + + return (nid); + } + +/* + * Create new NIDs for AES counter mode. OpenSSL doesn't support them now so we + * have to help ourselves here. + */ +static int pk11_add_aes_ctr_NIDs(void) + { + /* are we already set? */ + if (NID_aes_256_ctr != NID_undef) + return (1); + + /* + * There are no official names for AES counter modes yet so we just + * follow the format of those that exist. + */ + if ((NID_aes_128_ctr = pk11_add_NID("AES-128-CTR", "aes-128-ctr")) == + NID_undef) + goto err; + ciphers[PK11_AES_128_CTR].nid = pk11_aes_128_ctr.nid = NID_aes_128_ctr; + if ((NID_aes_192_ctr = pk11_add_NID("AES-192-CTR", "aes-192-ctr")) == + NID_undef) + goto err; + ciphers[PK11_AES_192_CTR].nid = pk11_aes_192_ctr.nid = NID_aes_192_ctr; + if ((NID_aes_256_ctr = pk11_add_NID("AES-256-CTR", "aes-256-ctr")) == + NID_undef) + goto err; + ciphers[PK11_AES_256_CTR].nid = pk11_aes_256_ctr.nid = NID_aes_256_ctr; + return (1); + +err: + PK11err(PK11_F_ADD_AES_CTR_NIDS, PK11_R_ADD_NID_FAILED); + return (0); + } +#endif /* SOLARIS_AES_CTR */ + +/* Find what symmetric ciphers this slot supports. */ +static void pk11_find_symmetric_ciphers(CK_FUNCTION_LIST_PTR pflist, + CK_SLOT_ID current_slot, int *current_slot_n_cipher, int *local_cipher_nids) + { + int i; + + for (i = 0; i < PK11_CIPHER_MAX; ++i) + { + pk11_get_symmetric_cipher(pflist, current_slot, + current_slot_n_cipher, local_cipher_nids, &ciphers[i]); + } + } + +/* Find what digest algorithms this slot supports. */ +static void pk11_find_digests(CK_FUNCTION_LIST_PTR pflist, + CK_SLOT_ID current_slot, int *current_slot_n_digest, int *local_digest_nids) + { + int i; + + for (i = 0; i < PK11_DIGEST_MAX; ++i) + { + pk11_get_digest(pflist, current_slot, current_slot_n_digest, + local_digest_nids, &digests[i]); + } + } + +#ifdef SOLARIS_HW_SLOT_SELECTION +/* + * It would be great if we could use pkcs11_kernel directly since this library + * offers hardware slots only. That's the easiest way to achieve the situation + * where we use the hardware accelerators when present and OpenSSL native code + * otherwise. That presumes the fact that OpenSSL native code is faster than the + * code in the soft token. It's a logical assumption - Crypto Framework has some + * inherent overhead so going there for the software implementation of a + * mechanism should be logically slower in contrast to the OpenSSL native code, + * presuming that both implementations are of similar speed. For example, the + * soft token for AES is roughly three times slower than OpenSSL for 64 byte + * blocks and still 20% slower for 8KB blocks. So, if we want to ship products + * that use the PKCS#11 engine by default, we must somehow avoid that regression + * on machines without hardware acceleration. That's why switching to the + * pkcs11_kernel library seems like a very good idea. + * + * The problem is that OpenSSL built with SunStudio is roughly 2x slower for + * asymmetric operations (RSA/DSA/DH) than the soft token built with the same + * compiler. That means that if we switched to pkcs11_kernel from the libpkcs11 + * library, we would have had a performance regression on machines without + * hardware acceleration for asymmetric operations for all applications that use + * the PKCS#11 engine. There is one such application - Apache web server since + * it's shipped configured to use the PKCS#11 engine by default. Having said + * that, we can't switch to the pkcs11_kernel library now and have to come with + * a solution that, on non-accelerated machines, uses the OpenSSL native code + * for all symmetric ciphers and digests while it uses the soft token for + * asymmetric operations. + * + * This is the idea: dlopen() pkcs11_kernel directly and find out what + * mechanisms are there. We don't care about duplications (more slots can + * support the same mechanism), we just want to know what mechanisms can be + * possibly supported in hardware on that particular machine. As said before, + * pkcs11_kernel will show you hardware providers only. + * + * Then, we rely on the fact that since we use libpkcs11 library we will find + * the metaslot. When we go through the metaslot's mechanisms for symmetric + * ciphers and digests, we check that any found mechanism is in the table + * created using the pkcs11_kernel library. So, as a result we have two arrays + * of mechanisms that were advertised as supported in hardware which was the + * goal of that whole exercise. Thus, we can use libpkcs11 but avoid soft token + * code for symmetric ciphers and digests. See pk11_choose_slots() for more + * information. + * + * This is Solaris specific code, if SOLARIS_HW_SLOT_SELECTION is not defined + * the code won't be used. + */ +#if defined(__sparcv9) || defined(__x86_64) || defined(__amd64) +static const char pkcs11_kernel[] = "/usr/lib/security/64/pkcs11_kernel.so.1"; +#else +static const char pkcs11_kernel[] = "/usr/lib/security/pkcs11_kernel.so.1"; +#endif + +/* + * Check hardware capabilities of the machines. The output are two lists, + * hw_cnids and hw_dnids, that contain hardware mechanisms found in all hardware + * providers together. They are not sorted and may contain duplicate mechanisms. + */ +static int check_hw_mechanisms(void) + { + int i; + CK_RV rv; + void *handle; + CK_C_GetFunctionList p; + CK_TOKEN_INFO token_info; + CK_ULONG ulSlotCount = 0; + int n_cipher = 0, n_digest = 0; + CK_FUNCTION_LIST_PTR pflist = NULL; + CK_SLOT_ID_PTR pSlotList = NULL_PTR; + int *tmp_hw_cnids = NULL, *tmp_hw_dnids = NULL; + int hw_ctable_size, hw_dtable_size; + + DEBUG_SLOT_SEL("%s: SOLARIS_HW_SLOT_SELECTION code running\n", + PK11_DBG); + /* + * Use RTLD_GROUP to limit the pkcs11_kernel provider to its own + * symbols, which prevents it from mistakenly accessing C_* functions + * from the top-level PKCS#11 library. + */ + if ((handle = dlopen(pkcs11_kernel, RTLD_LAZY | RTLD_GROUP)) == NULL) + { + PK11err(PK11_F_CHECK_HW_MECHANISMS, PK11_R_DSO_FAILURE); + goto err; + } + + if ((p = (CK_C_GetFunctionList)dlsym(handle, + PK11_GET_FUNCTION_LIST)) == NULL) + { + PK11err(PK11_F_CHECK_HW_MECHANISMS, PK11_R_DSO_FAILURE); + goto err; + } + + /* get the full function list from the loaded library */ + if (p(&pflist) != CKR_OK) + { + PK11err(PK11_F_CHECK_HW_MECHANISMS, PK11_R_DSO_FAILURE); + goto err; + } + + rv = pflist->C_Initialize(NULL_PTR); + if ((rv != CKR_OK) && (rv != CKR_CRYPTOKI_ALREADY_INITIALIZED)) + { + PK11err_add_data(PK11_F_CHECK_HW_MECHANISMS, + PK11_R_INITIALIZE, rv); + goto err; + } + + if (pflist->C_GetSlotList(0, NULL_PTR, &ulSlotCount) != CKR_OK) + { + PK11err(PK11_F_CHECK_HW_MECHANISMS, PK11_R_GETSLOTLIST); + goto err; + } + + /* no slots, set the hw mechanism tables as empty */ + if (ulSlotCount == 0) + { + DEBUG_SLOT_SEL("%s: no hardware mechanisms found\n", PK11_DBG); + hw_cnids = OPENSSL_malloc(sizeof (int)); + hw_dnids = OPENSSL_malloc(sizeof (int)); + if (hw_cnids == NULL || hw_dnids == NULL) + { + PK11err(PK11_F_CHECK_HW_MECHANISMS, + PK11_R_MALLOC_FAILURE); + return (0); + } + /* this means empty tables */ + hw_cnids[0] = NID_undef; + hw_dnids[0] = NID_undef; + return (1); + } + + pSlotList = OPENSSL_malloc(ulSlotCount * sizeof (CK_SLOT_ID)); + if (pSlotList == NULL) + { + PK11err(PK11_F_CHECK_HW_MECHANISMS, PK11_R_MALLOC_FAILURE); + goto err; + } + + /* Get the slot list for processing */ + if (pflist->C_GetSlotList(0, pSlotList, &ulSlotCount) != CKR_OK) + { + PK11err(PK11_F_CHECK_HW_MECHANISMS, PK11_R_GETSLOTLIST); + goto err; + } + + /* + * We don't care about duplicate mechanisms in multiple slots and also + * reserve one slot for the terminal NID_undef which we use to stop the + * search. + */ + hw_ctable_size = ulSlotCount * PK11_CIPHER_MAX + 1; + hw_dtable_size = ulSlotCount * PK11_DIGEST_MAX + 1; + tmp_hw_cnids = OPENSSL_malloc(hw_ctable_size * sizeof (int)); + tmp_hw_dnids = OPENSSL_malloc(hw_dtable_size * sizeof (int)); + if (tmp_hw_cnids == NULL || tmp_hw_dnids == NULL) + { + PK11err(PK11_F_CHECK_HW_MECHANISMS, PK11_R_MALLOC_FAILURE); + goto err; + } + + /* + * Do not use memset since we should not rely on the fact that NID_undef + * is zero now. + */ + for (i = 0; i < hw_ctable_size; ++i) + tmp_hw_cnids[i] = NID_undef; + for (i = 0; i < hw_dtable_size; ++i) + tmp_hw_dnids[i] = NID_undef; + + DEBUG_SLOT_SEL("%s: provider: %s\n", PK11_DBG, pkcs11_kernel); + DEBUG_SLOT_SEL("%s: found %d hardware slots\n", PK11_DBG, ulSlotCount); + DEBUG_SLOT_SEL("%s: now looking for mechs supported in hw\n", + PK11_DBG); + + for (i = 0; i < ulSlotCount; i++) + { + if (pflist->C_GetTokenInfo(pSlotList[i], &token_info) != CKR_OK) + continue; + + DEBUG_SLOT_SEL("%s: token label: %.32s\n", PK11_DBG, + token_info.label); + + /* + * We are filling the hw mech tables here. Global tables are + * still NULL so all mechanisms are put into tmp tables. + */ + pk11_find_symmetric_ciphers(pflist, pSlotList[i], + &n_cipher, tmp_hw_cnids); + pk11_find_digests(pflist, pSlotList[i], + &n_digest, tmp_hw_dnids); + } + + /* + * Since we are part of a library (libcrypto.so), calling this function + * may have side-effects. Also, C_Finalize() is triggered by + * dlclose(3C). + */ +#if 0 + pflist->C_Finalize(NULL); +#endif + OPENSSL_free(pSlotList); + (void) dlclose(handle); + hw_cnids = tmp_hw_cnids; + hw_dnids = tmp_hw_dnids; + + DEBUG_SLOT_SEL("%s: hw mechs check complete\n", PK11_DBG); + return (1); + +err: + if (pSlotList != NULL) + OPENSSL_free(pSlotList); + if (tmp_hw_cnids != NULL) + OPENSSL_free(tmp_hw_cnids); + if (tmp_hw_dnids != NULL) + OPENSSL_free(tmp_hw_dnids); + + return (0); + } + +/* + * Check presence of a NID in the table of NIDs unless the mechanism is + * supported directly in a CPU instruction set. The table may be NULL (i.e., + * non-existent). + */ +static int nid_in_table(int nid, int *nid_table) + { + int i = 0; + + /* + * Special case first. NULL means that we are initializing a new table. + */ + if (nid_table == NULL) + return (1); + + /* + * If we have an AES instruction set on SPARC we route everything + * through the Crypto Framework (ie., through pkcs11_softtoken in this + * case). This is for T4 which has HW instructions for AES, DES, MD5, + * SHA1, SHA256, SHA512, MONTMUL, and MPMUL. + * + * On Intel, if we have AES-NI instruction set we route AES to the + * Crypto Framework. Intel CPUs do not have other instruction sets for + * HW crypto acceleration so we check the HW NID table for any other + * mechanism. + */ +#if defined(__x86) + if (hw_aes_instruction_set_present() == 1) + { + switch (nid) + { + case NID_aes_128_ecb: + case NID_aes_192_ecb: + case NID_aes_256_ecb: + case NID_aes_128_cbc: + case NID_aes_192_cbc: + case NID_aes_256_cbc: + return (1); + } + /* + * These are variables, cannot be used as case expressions. + */ + if (nid == NID_aes_128_ctr || + nid == NID_aes_192_ctr || + nid == NID_aes_256_ctr) + { + return (1); + } + } +#elif defined(__sparc) + if (hw_aes_instruction_set_present() == 1) + return (1); +#endif + + /* The table is never full, there is always at least one NID_undef. */ + while (nid_table[i] != NID_undef) + { + if (nid_table[i++] == nid) + { + DEBUG_SLOT_SEL(" (NID %d in hw table, idx %d)", nid, i); + return (1); + } + } + + return (0); + } + +/* Do we have an AES instruction set? */ +static int +hw_aes_instruction_set_present(void) + { + static int present = -1; + + if (present == -1) + { + uint_t ui = 0; + + (void) getisax(&ui, 1); + +#if defined(__amd64) || defined(__i386) + present = (ui & AV_386_AES) > 0; +#elif defined(__sparc) + present = (ui & (AV_SPARC_AES|AV_SPARC_FJAES)) > 0; +#endif + } + + return (present); + } + +#endif /* SOLARIS_HW_SLOT_SELECTION */ + +#endif /* OPENSSL_NO_HW_PK11 */ +#endif /* OPENSSL_NO_HW */ diff --git a/openssl1.0.0/engines/pkcs11/hw_pk11.h b/openssl1.0.0/engines/pkcs11/hw_pk11.h new file mode 100644 index 0000000..547a104 --- /dev/null +++ b/openssl1.0.0/engines/pkcs11/hw_pk11.h @@ -0,0 +1,257 @@ +/* + * Copyright (c) 2004, 2011, Oracle and/or its affiliates. All rights reserved. + */ + +/* crypto/engine/hw_pk11.h */ +/* + * This product includes software developed by the OpenSSL Project for + * use in the OpenSSL Toolkit (http://www.openssl.org/). + * + * This project also referenced hw_pkcs11-0.9.7b.patch written by + * Afchine Madjlessi. + */ +/* + * ==================================================================== + * Copyright (c) 2000-2001 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#ifndef HW_PK11_H +#define HW_PK11_H + +#include "hw_pk11_err.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* max byte length of a symmetric key we support */ +#define PK11_KEY_LEN_MAX 32 + +/* + * This structure encapsulates all reusable information for a PKCS#11 + * session. A list of these objects is created on behalf of the + * calling application using an on-demand method. Each operation + * type (see PK11_OPTYPE below) has its own per-process list. + * Each of the lists is basically a cache for faster PKCS#11 object + * access to avoid expensive C_Find{,Init,Final}Object() calls. + * + * When a new request comes in, an object will be taken from the list + * (if there is one) or a new one is created to handle the request + * (if the list is empty). See pk11_get_session() on how it is done. + */ +typedef struct PK11_st_SESSION + { + struct PK11_st_SESSION *next; + CK_SESSION_HANDLE session; /* PK11 session handle */ + pid_t pid; /* Current process ID */ + CK_BBOOL persistent; /* is that a keystore object? */ + union + { +#ifndef OPENSSL_NO_RSA + struct + { + CK_OBJECT_HANDLE rsa_pub_key; /* pub handle */ + CK_OBJECT_HANDLE rsa_priv_key; /* priv handle */ + RSA *rsa_pub; /* pub key addr */ + BIGNUM *rsa_n_num; /* pub modulus */ + BIGNUM *rsa_e_num; /* pub exponent */ + RSA *rsa_priv; /* priv key addr */ + BIGNUM *rsa_d_num; /* priv exponent */ + } u_RSA; +#endif /* OPENSSL_NO_RSA */ +#ifndef OPENSSL_NO_DSA + struct + { + CK_OBJECT_HANDLE dsa_pub_key; /* pub handle */ + CK_OBJECT_HANDLE dsa_priv_key; /* priv handle */ + DSA *dsa_pub; /* pub key addr */ + BIGNUM *dsa_pub_num; /* pub key */ + DSA *dsa_priv; /* priv key addr */ + BIGNUM *dsa_priv_num; /* priv key */ + } u_DSA; +#endif /* OPENSSL_NO_DSA */ +#ifndef OPENSSL_NO_DH + struct + { + CK_OBJECT_HANDLE dh_key; /* key handle */ + DH *dh; /* dh key addr */ + BIGNUM *dh_priv_num; /* priv dh key */ + } u_DH; +#endif /* OPENSSL_NO_DH */ + struct + { + CK_OBJECT_HANDLE cipher_key; /* key handle */ + unsigned char key[PK11_KEY_LEN_MAX]; + int key_len; /* priv key len */ + int encrypt; /* 1/0 enc/decr */ + } u_cipher; + } opdata_u; + } PK11_SESSION; + +#define opdata_rsa_pub_key opdata_u.u_RSA.rsa_pub_key +#define opdata_rsa_priv_key opdata_u.u_RSA.rsa_priv_key +#define opdata_rsa_pub opdata_u.u_RSA.rsa_pub +#define opdata_rsa_priv opdata_u.u_RSA.rsa_priv +#define opdata_rsa_n_num opdata_u.u_RSA.rsa_n_num +#define opdata_rsa_e_num opdata_u.u_RSA.rsa_e_num +#define opdata_rsa_d_num opdata_u.u_RSA.rsa_d_num +#define opdata_dsa_pub_key opdata_u.u_DSA.dsa_pub_key +#define opdata_dsa_priv_key opdata_u.u_DSA.dsa_priv_key +#define opdata_dsa_pub opdata_u.u_DSA.dsa_pub +#define opdata_dsa_pub_num opdata_u.u_DSA.dsa_pub_num +#define opdata_dsa_priv opdata_u.u_DSA.dsa_priv +#define opdata_dsa_priv_num opdata_u.u_DSA.dsa_priv_num +#define opdata_dh_key opdata_u.u_DH.dh_key +#define opdata_dh opdata_u.u_DH.dh +#define opdata_dh_priv_num opdata_u.u_DH.dh_priv_num +#define opdata_cipher_key opdata_u.u_cipher.cipher_key +#define opdata_key opdata_u.u_cipher.key +#define opdata_key_len opdata_u.u_cipher.key_len +#define opdata_encrypt opdata_u.u_cipher.encrypt + +/* + * We have 3 different groups of operation types: + * 1) asymmetric operations + * 2) random operations + * 3) symmetric and digest operations + * + * This division into groups stems from the fact that it's common that hardware + * providers may support operations from one group only. For example, hardware + * providers on UltraSPARC T2, n2rng(7d), ncp(7d), and n2cp(7d), each support + * only a single group of operations. + * + * For every group a different slot can be chosen. That means that we must have + * at least 3 different lists of cached PKCS#11 sessions since sessions from + * different groups may be initialized in different slots. + * + * To provide locking granularity in multithreaded environment, the groups are + * further split into types with each type having a separate session cache. + */ +typedef enum PK11_OPTYPE_ENUM + { + OP_RAND, + OP_RSA, + OP_DSA, + OP_DH, + OP_CIPHER, + OP_DIGEST, + OP_MAX + } PK11_OPTYPE; + +/* + * This structure contains the heads of the lists forming the object caches + * and locks associated with the lists. + */ +typedef struct PK11_st_CACHE + { + PK11_SESSION *head; + pthread_mutex_t *lock; + } PK11_CACHE; + +/* structure for tracking handles of asymmetric key objects */ +typedef struct PK11_active_st + { + CK_OBJECT_HANDLE h; + unsigned int refcnt; + struct PK11_active_st *prev; + struct PK11_active_st *next; + } PK11_active; + +extern pthread_mutex_t *find_lock[]; +extern PK11_active *active_list[]; +/* + * These variables are specific for the RSA keys by reference code. See + * hw_pk11_pub.c for explanation. + */ +extern char *passphrasedialog; +extern CK_FLAGS pubkey_token_flags; + +#define LOCK_OBJSTORE(alg_type) \ + (void) pthread_mutex_lock(find_lock[alg_type]) +#define UNLOCK_OBJSTORE(alg_type) \ + (void) pthread_mutex_unlock(find_lock[alg_type]) + +extern PK11_SESSION *pk11_get_session(PK11_OPTYPE optype); +extern void pk11_return_session(PK11_SESSION *sp, PK11_OPTYPE optype); + +#ifndef OPENSSL_NO_RSA +extern int pk11_destroy_rsa_key_objects(PK11_SESSION *session); +extern int pk11_destroy_rsa_object_pub(PK11_SESSION *sp, CK_BBOOL uselock); +extern int pk11_destroy_rsa_object_priv(PK11_SESSION *sp, CK_BBOOL uselock); +extern EVP_PKEY *pk11_load_privkey(ENGINE *e, const char *pubkey_file, + UI_METHOD *ui_method, void *callback_data); +extern EVP_PKEY *pk11_load_pubkey(ENGINE *e, const char *pubkey_file, + UI_METHOD *ui_method, void *callback_data); +extern RSA_METHOD *PK11_RSA(void); +#endif /* OPENSSL_NO_RSA */ +#ifndef OPENSSL_NO_DSA +extern int pk11_destroy_dsa_key_objects(PK11_SESSION *session); +extern int pk11_destroy_dsa_object_pub(PK11_SESSION *sp, CK_BBOOL uselock); +extern int pk11_destroy_dsa_object_priv(PK11_SESSION *sp, CK_BBOOL uselock); +extern DSA_METHOD *PK11_DSA(void); +#endif /* OPENSSL_NO_DSA */ +#ifndef OPENSSL_NO_DH +extern int pk11_destroy_dh_key_objects(PK11_SESSION *session); +extern int pk11_destroy_dh_object(PK11_SESSION *sp, CK_BBOOL uselock); +extern DH_METHOD *PK11_DH(void); +#endif /* OPENSSL_NO_DH */ + +extern int pk11_engine_pkey_methods(ENGINE *e, EVP_PKEY_METHOD **pmeth, + const int **nids, int nid); + +extern CK_FUNCTION_LIST_PTR pFuncList; + +#ifdef __cplusplus +} +#endif +#endif /* HW_PK11_H */ diff --git a/openssl1.0.0/engines/pkcs11/hw_pk11_err.c b/openssl1.0.0/engines/pkcs11/hw_pk11_err.c new file mode 100644 index 0000000..8b6d358 --- /dev/null +++ b/openssl1.0.0/engines/pkcs11/hw_pk11_err.c @@ -0,0 +1,306 @@ +/* + * Copyright (c) 2004, 2011, Oracle and/or its affiliates. All rights reserved. + */ + +/* crypto/engine/hw_pk11_err.c */ +/* + * This product includes software developed by the OpenSSL Project for + * use in the OpenSSL Toolkit (http://www.openssl.org/). + * + * This project also referenced hw_pkcs11-0.9.7b.patch written by + * Afchine Madjlessi. + */ +/* + * ==================================================================== + * Copyright (c) 2000-2001 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include <stdio.h> +#include <openssl/err.h> +#include "hw_pk11_err.h" + +/* BEGIN ERROR CODES */ +#ifndef OPENSSL_NO_ERR +static ERR_STRING_DATA pk11_str_functs[]= +{ +{ ERR_PACK(0, PK11_F_INIT, 0), "PK11_INIT"}, +{ ERR_PACK(0, PK11_F_FINISH, 0), "PK11_FINISH"}, +{ ERR_PACK(0, PK11_F_DESTROY, 0), "PK11_DESTROY"}, +{ ERR_PACK(0, PK11_F_CTRL, 0), "PK11_CTRL"}, +{ ERR_PACK(0, PK11_F_RSA_INIT, 0), "PK11_RSA_INIT"}, +{ ERR_PACK(0, PK11_F_RSA_FINISH, 0), "PK11_RSA_FINISH"}, +{ ERR_PACK(0, PK11_F_GET_PUB_RSA_KEY, 0), "PK11_GET_PUB_RSA_KEY"}, +{ ERR_PACK(0, PK11_F_GET_PRIV_RSA_KEY, 0), "PK11_GET_PRIV_RSA_KEY"}, +{ ERR_PACK(0, PK11_F_RSA_GEN_KEY, 0), "PK11_RSA_GEN_KEY"}, +{ ERR_PACK(0, PK11_F_RSA_PUB_ENC, 0), "PK11_RSA_PUB_ENC"}, +{ ERR_PACK(0, PK11_F_RSA_PRIV_ENC, 0), "PK11_RSA_PRIV_ENC"}, +{ ERR_PACK(0, PK11_F_RSA_PUB_DEC, 0), "PK11_RSA_PUB_DEC"}, +{ ERR_PACK(0, PK11_F_RSA_PRIV_DEC, 0), "PK11_RSA_PRIV_DEC"}, +{ ERR_PACK(0, PK11_F_RSA_SIGN, 0), "PK11_RSA_SIGN"}, +{ ERR_PACK(0, PK11_F_RSA_VERIFY, 0), "PK11_RSA_VERIFY"}, +{ ERR_PACK(0, PK11_F_RAND_ADD, 0), "PK11_RAND_ADD"}, +{ ERR_PACK(0, PK11_F_RAND_BYTES, 0), "PK11_RAND_BYTES"}, +{ ERR_PACK(0, PK11_F_GET_SESSION, 0), "PK11_GET_SESSION"}, +{ ERR_PACK(0, PK11_F_FREE_SESSION, 0), "PK11_FREE_SESSION"}, +{ ERR_PACK(0, PK11_F_LOAD_PUBKEY, 0), "PK11_LOAD_PUBKEY"}, +{ ERR_PACK(0, PK11_F_LOAD_PRIVKEY, 0), "PK11_LOAD_PRIV_KEY"}, +{ ERR_PACK(0, PK11_F_RSA_PUB_ENC_LOW, 0), "PK11_RSA_PUB_ENC_LOW"}, +{ ERR_PACK(0, PK11_F_RSA_PRIV_ENC_LOW, 0), "PK11_RSA_PRIV_ENC_LOW"}, +{ ERR_PACK(0, PK11_F_RSA_PUB_DEC_LOW, 0), "PK11_RSA_PUB_DEC_LOW"}, +{ ERR_PACK(0, PK11_F_RSA_PRIV_DEC_LOW, 0), "PK11_RSA_PRIV_DEC_LOW"}, +{ ERR_PACK(0, PK11_F_DSA_SIGN, 0), "PK11_DSA_SIGN"}, +{ ERR_PACK(0, PK11_F_DSA_VERIFY, 0), "PK11_DSA_VERIFY"}, +{ ERR_PACK(0, PK11_F_DSA_INIT, 0), "PK11_DSA_INIT"}, +{ ERR_PACK(0, PK11_F_DSA_FINISH, 0), "PK11_DSA_FINISH"}, +{ ERR_PACK(0, PK11_F_GET_PUB_DSA_KEY, 0), "PK11_GET_PUB_DSA_KEY"}, +{ ERR_PACK(0, PK11_F_GET_PRIV_DSA_KEY, 0), "PK11_GET_PRIV_DSA_KEY"}, +{ ERR_PACK(0, PK11_F_DH_INIT, 0), "PK11_DH_INIT"}, +{ ERR_PACK(0, PK11_F_DH_FINISH, 0), "PK11_DH_FINISH"}, +{ ERR_PACK(0, PK11_F_MOD_EXP_DH, 0), "PK11_MOD_EXP_DH"}, +{ ERR_PACK(0, PK11_F_GET_DH_KEY, 0), "PK11_GET_DH_KEY"}, +{ ERR_PACK(0, PK11_F_FREE_ALL_SESSIONS, 0), "PK11_FREE_ALL_SESSIONS"}, +{ ERR_PACK(0, PK11_F_SETUP_SESSION, 0), "PK11_SETUP_SESSION"}, +{ ERR_PACK(0, PK11_F_DESTROY_OBJECT, 0), "PK11_DESTROY_OBJECT"}, +{ ERR_PACK(0, PK11_F_CIPHER_INIT, 0), "PK11_CIPHER_INIT"}, +{ ERR_PACK(0, PK11_F_CIPHER_DO_CIPHER, 0), "PK11_CIPHER_DO_CIPHER"}, +{ ERR_PACK(0, PK11_F_GET_CIPHER_KEY, 0), "PK11_GET_CIPHER_KEY"}, +{ ERR_PACK(0, PK11_F_DIGEST_INIT, 0), "PK11_DIGEST_INIT"}, +{ ERR_PACK(0, PK11_F_DIGEST_UPDATE, 0), "PK11_DIGEST_UPDATE"}, +{ ERR_PACK(0, PK11_F_DIGEST_FINAL, 0), "PK11_DIGEST_FINAL"}, +{ ERR_PACK(0, PK11_F_CHOOSE_SLOT, 0), "PK11_CHOOSE_SLOT"}, +{ ERR_PACK(0, PK11_F_CIPHER_FINAL, 0), "PK11_CIPHER_FINAL"}, +{ ERR_PACK(0, PK11_F_LIBRARY_INIT, 0), "PK11_LIBRARY_INIT"}, +{ ERR_PACK(0, PK11_F_LOAD, 0), "ENGINE_LOAD_PK11"}, +{ ERR_PACK(0, PK11_F_DH_GEN_KEY, 0), "PK11_DH_GEN_KEY"}, +{ ERR_PACK(0, PK11_F_DH_COMP_KEY, 0), "PK11_DH_COMP_KEY"}, +{ ERR_PACK(0, PK11_F_DIGEST_COPY, 0), "PK11_DIGEST_COPY"}, +{ ERR_PACK(0, PK11_F_CIPHER_CLEANUP, 0), "PK11_CIPHER_CLEANUP"}, +{ ERR_PACK(0, PK11_F_ACTIVE_ADD, 0), "PK11_ACTIVE_ADD"}, +{ ERR_PACK(0, PK11_F_ACTIVE_DELETE, 0), "PK11_ACTIVE_DELETE"}, +{ ERR_PACK(0, PK11_F_CHECK_HW_MECHANISMS, 0), "PK11_CHECK_HW_MECHANISMS"}, +{ ERR_PACK(0, PK11_F_INIT_SYMMETRIC, 0), "PK11_INIT_SYMMETRIC"}, +{ ERR_PACK(0, PK11_F_ADD_AES_CTR_NIDS, 0), "PK11_ADD_AES_CTR_NIDS"}, +{ ERR_PACK(0, PK11_F_INIT_ALL_LOCKS, 0), "PK11_INIT_ALL_LOCKS"}, +{ ERR_PACK(0, PK11_F_RETURN_SESSION, 0), "PK11_RETURN_SESSION"}, +{ ERR_PACK(0, PK11_F_GET_PIN, 0), "PK11_GET_PIN"}, +{ ERR_PACK(0, PK11_F_FIND_ONE_OBJECT, 0), "PK11_FIND_ONE_OBJECT"}, +{ ERR_PACK(0, PK11_F_CHECK_TOKEN_ATTRS, 0), "PK11_CHECK_TOKEN_ATTRS"}, +{ ERR_PACK(0, PK11_F_CACHE_PIN, 0), "PK11_CACHE_PIN"}, +{ ERR_PACK(0, PK11_F_MLOCK_PIN_IN_MEMORY, 0), "PK11_MLOCK_PIN_IN_MEMORY"}, +{ ERR_PACK(0, PK11_F_TOKEN_LOGIN, 0), "PK11_TOKEN_LOGIN"}, +{ ERR_PACK(0, PK11_F_TOKEN_RELOGIN, 0), "PK11_TOKEN_RELOGIN"}, +{ ERR_PACK(0, PK11_F_RUN_ASKPASS, 0), "PK11_F_RUN_ASKPASS"}, +{ 0, NULL} +}; + +static ERR_STRING_DATA pk11_str_reasons[]= +{ +{ PK11_R_ALREADY_LOADED, "PKCS#11 DSO already loaded"}, +{ PK11_R_DSO_FAILURE, "unable to load PKCS#11 DSO"}, +{ PK11_R_NOT_LOADED, "PKCS#11 DSO not loaded"}, +{ PK11_R_PASSED_NULL_PARAMETER, "null parameter passed"}, +{ PK11_R_COMMAND_NOT_IMPLEMENTED, "command not implemented"}, +{ PK11_R_INITIALIZE, "C_Initialize failed"}, +{ PK11_R_FINALIZE, "C_Finalize failed"}, +{ PK11_R_GETINFO, "C_GetInfo faile"}, +{ PK11_R_GETSLOTLIST, "C_GetSlotList failed"}, +{ PK11_R_NO_MODULUS_OR_NO_EXPONENT, "no modulus or no exponent"}, +{ PK11_R_ATTRIBUT_SENSITIVE_OR_INVALID, "attr sensitive or invalid"}, +{ PK11_R_GETATTRIBUTVALUE, "C_GetAttributeValue failed"}, +{ PK11_R_NO_MODULUS, "no modulus"}, +{ PK11_R_NO_EXPONENT, "no exponent"}, +{ PK11_R_FINDOBJECTSINIT, "C_FindObjectsInit failed"}, +{ PK11_R_FINDOBJECTS, "C_FindObjects failed"}, +{ PK11_R_FINDOBJECTSFINAL, "C_FindObjectsFinal failed"}, +{ PK11_R_CREATEOBJECT, "C_CreateObject failed"}, +{ PK11_R_DESTROYOBJECT, "C_DestroyObject failed"}, +{ PK11_R_OPENSESSION, "C_OpenSession failed"}, +{ PK11_R_CLOSESESSION, "C_CloseSession failed"}, +{ PK11_R_ENCRYPTINIT, "C_EncryptInit failed"}, +{ PK11_R_ENCRYPT, "C_Encrypt failed"}, +{ PK11_R_SIGNINIT, "C_SignInit failed"}, +{ PK11_R_SIGN, "C_Sign failed"}, +{ PK11_R_DECRYPTINIT, "C_DecryptInit failed"}, +{ PK11_R_DECRYPT, "C_Decrypt failed"}, +{ PK11_R_VERIFYINIT, "C_VerifyRecover failed"}, +{ PK11_R_VERIFY, "C_Verify failed"}, +{ PK11_R_VERIFYRECOVERINIT, "C_VerifyRecoverInit failed"}, +{ PK11_R_VERIFYRECOVER, "C_VerifyRecover failed"}, +{ PK11_R_GEN_KEY, "C_GenerateKeyPair failed"}, +{ PK11_R_SEEDRANDOM, "C_SeedRandom failed"}, +{ PK11_R_GENERATERANDOM, "C_GenerateRandom failed"}, +{ PK11_R_INVALID_MESSAGE_LENGTH, "invalid message length"}, +{ PK11_R_UNKNOWN_ALGORITHM_TYPE, "unknown algorithm type"}, +{ PK11_R_UNKNOWN_ASN1_OBJECT_ID, "unknown asn1 onject id"}, +{ PK11_R_UNKNOWN_PADDING_TYPE, "unknown padding type"}, +{ PK11_R_PADDING_CHECK_FAILED, "padding check failed"}, +{ PK11_R_DIGEST_TOO_BIG, "digest too big"}, +{ PK11_R_MALLOC_FAILURE, "malloc failure"}, +{ PK11_R_CTRL_COMMAND_NOT_IMPLEMENTED, "ctl command not implemented"}, +{ PK11_R_DATA_GREATER_THAN_MOD_LEN, "data is bigger than mod"}, +{ PK11_R_DATA_TOO_LARGE_FOR_MODULUS, "data is too larger for mod"}, +{ PK11_R_MISSING_KEY_COMPONENT, "a dsa component is missing"}, +{ PK11_R_INVALID_SIGNATURE_LENGTH, "invalid signature length"}, +{ PK11_R_INVALID_DSA_SIGNATURE_R, "missing r in dsa verify"}, +{ PK11_R_INVALID_DSA_SIGNATURE_S, "missing s in dsa verify"}, +{ PK11_R_INCONSISTENT_KEY, "inconsistent key type"}, +{ PK11_R_ENCRYPTUPDATE, "C_EncryptUpdate failed"}, +{ PK11_R_DECRYPTUPDATE, "C_DecryptUpdate failed"}, +{ PK11_R_DIGESTINIT, "C_DigestInit failed"}, +{ PK11_R_DIGESTUPDATE, "C_DigestUpdate failed"}, +{ PK11_R_DIGESTFINAL, "C_DigestFinal failed"}, +{ PK11_R_ENCRYPTFINAL, "C_EncryptFinal failed"}, +{ PK11_R_DECRYPTFINAL, "C_DecryptFinal failed"}, +{ PK11_R_NO_PRNG_SUPPORT, "Slot does not support PRNG"}, +{ PK11_R_GETTOKENINFO, "C_GetTokenInfo failed"}, +{ PK11_R_DERIVEKEY, "C_DeriveKey failed"}, +{ PK11_R_GET_OPERATION_STATE, "C_GetOperationState failed"}, +{ PK11_R_SET_OPERATION_STATE, "C_SetOperationState failed"}, +{ PK11_R_INVALID_HANDLE, "invalid PKCS#11 object handle"}, +{ PK11_R_KEY_OR_IV_LEN_PROBLEM, "IV or key length incorrect"}, +{ PK11_R_INVALID_OPERATION_TYPE, "invalid operation type"}, +{ PK11_R_ADD_NID_FAILED, "failed to add NID" }, +{ PK11_R_ATFORK_FAILED, "atfork failed" }, +{ PK11_R_TOKEN_LOGIN_FAILED, "C_Login failed on token" }, +{ PK11_R_MORE_THAN_ONE_OBJECT_FOUND, "more than one object found" }, +{ PK11_R_INVALID_PKCS11_URI, "pkcs11 URI provided is invalid" }, +{ PK11_R_COULD_NOT_READ_PIN, "could not read PIN from terminal" }, +{ PK11_R_PIN_NOT_READ_FROM_COMMAND, "PIN not read from external command" }, +{ PK11_R_COULD_NOT_OPEN_COMMAND, "could not popen dialog command" }, +{ PK11_R_PIPE_FAILED, "pipe failed" }, +{ PK11_R_BAD_PASSPHRASE_SPEC, "bad passphrasedialog specification" }, +{ PK11_R_TOKEN_NOT_INITIALIZED, "token not initialized" }, +{ PK11_R_TOKEN_PIN_NOT_SET, "token PIN required but not set" }, +{ PK11_R_TOKEN_PIN_NOT_PROVIDED, "token PIN required but not provided" }, +{ PK11_R_MISSING_OBJECT_LABEL, "missing mandatory 'object' keyword" }, +{ PK11_R_TOKEN_ATTRS_DO_NOT_MATCH, "token attrs provided do not match" }, +{ PK11_R_PRIV_KEY_NOT_FOUND, "private key not found in keystore" }, +{ PK11_R_NO_OBJECT_FOUND, "specified object not found" }, +{ PK11_R_PIN_CACHING_POLICY_INVALID, "PIN set but caching policy invalid" }, +{ PK11_R_SYSCONF_FAILED, "sysconf failed" }, +{ PK11_R_MMAP_FAILED, "mmap failed" }, +{ PK11_R_PRIV_PROC_LOCK_MEMORY_MISSING, "PROC_LOCK_MEMORY privilege missing" }, +{ PK11_R_MLOCK_FAILED, "mlock failed" }, +{ PK11_R_FORK_FAILED, "fork failed" }, +{ 0, NULL} +}; +#endif /* OPENSSL_NO_ERR */ + +static int pk11_lib_error_code = 0; +static int pk11_error_init = 1; + +#ifdef PK11_ENGINE_LIB_NAME +static ERR_STRING_DATA pk11_engine_lib_name[] = +{ +{0, PK11_ENGINE_LIB_NAME}, +{0, NULL} +}; +#endif + +static void +ERR_load_pk11_strings(void) + { + if (pk11_lib_error_code == 0) + pk11_lib_error_code = ERR_get_next_error_library(); + + if (pk11_error_init) + { + pk11_error_init = 0; +#ifndef OPENSSL_NO_ERR + ERR_load_strings(pk11_lib_error_code, pk11_str_functs); + ERR_load_strings(pk11_lib_error_code, pk11_str_reasons); +#endif + +#ifdef PK11_ENGINE_LIB_NAME + pk11_engine_lib_name->error = + ERR_PACK(pk11_lib_error_code, 0, 0); + ERR_load_strings(0, pk11_engine_lib_name); +#endif + } +} + +static void +ERR_unload_pk11_strings(void) + { + if (pk11_error_init == 0) + { +#ifndef OPENSSL_NO_ERR + ERR_unload_strings(pk11_lib_error_code, pk11_str_functs); + ERR_unload_strings(pk11_lib_error_code, pk11_str_reasons); +#endif + +#ifdef PK11_ENGINE_LIB_NAME + ERR_unload_strings(0, pk11_engine_lib_name); +#endif + + pk11_error_init = 1; + } +} + +void +ERR_pk11_error(int function, int reason, char *file, int line) +{ + if (pk11_lib_error_code == 0) + pk11_lib_error_code = ERR_get_next_error_library(); + ERR_PUT_error(pk11_lib_error_code, function, reason, file, line); +} + +void +PK11err_add_data(int function, int reason, CK_RV rv) +{ + char tmp_buf[20]; + + PK11err(function, reason); + (void) snprintf(tmp_buf, sizeof (tmp_buf), "%lx", rv); + ERR_add_error_data(2, "PK11 CK_RV=0X", tmp_buf); +} diff --git a/openssl1.0.0/engines/pkcs11/hw_pk11_err.h b/openssl1.0.0/engines/pkcs11/hw_pk11_err.h new file mode 100644 index 0000000..e5ab40a --- /dev/null +++ b/openssl1.0.0/engines/pkcs11/hw_pk11_err.h @@ -0,0 +1,242 @@ +/* + * Copyright (c) 2004, 2011, Oracle and/or its affiliates. All rights reserved. + */ + +/* + * This product includes software developed by the OpenSSL Project for + * use in the OpenSSL Toolkit (http://www.openssl.org/). + * + * This project also referenced hw_pkcs11-0.9.7b.patch written by + * Afchine Madjlessi. + */ +/* + * ==================================================================== + * Copyright (c) 2000-2001 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#ifndef HW_PK11_ERR_H +#define HW_PK11_ERR_H + +#ifdef __cplusplus +extern "C" { +#endif + +void ERR_pk11_error(int function, int reason, char *file, int line); +void PK11err_add_data(int function, int reason, CK_RV rv); +#define PK11err(f, r) ERR_pk11_error((f), (r), __FILE__, __LINE__) + +/* Error codes for the PK11 functions. */ + +/* Function codes. */ + +#define PK11_F_INIT 100 +#define PK11_F_FINISH 101 +#define PK11_F_DESTROY 102 +#define PK11_F_CTRL 103 +#define PK11_F_RSA_INIT 104 +#define PK11_F_RSA_FINISH 105 +#define PK11_F_GET_PUB_RSA_KEY 106 +#define PK11_F_GET_PRIV_RSA_KEY 107 +#define PK11_F_RSA_GEN_KEY 108 +#define PK11_F_RSA_PUB_ENC 109 +#define PK11_F_RSA_PRIV_ENC 110 +#define PK11_F_RSA_PUB_DEC 111 +#define PK11_F_RSA_PRIV_DEC 112 +#define PK11_F_RSA_SIGN 113 +#define PK11_F_RSA_VERIFY 114 +#define PK11_F_RAND_ADD 115 +#define PK11_F_RAND_BYTES 116 +#define PK11_F_GET_SESSION 117 +#define PK11_F_FREE_SESSION 118 +#define PK11_F_LOAD_PUBKEY 119 +#define PK11_F_LOAD_PRIVKEY 120 +#define PK11_F_RSA_PUB_ENC_LOW 121 +#define PK11_F_RSA_PRIV_ENC_LOW 122 +#define PK11_F_RSA_PUB_DEC_LOW 123 +#define PK11_F_RSA_PRIV_DEC_LOW 124 +#define PK11_F_DSA_SIGN 125 +#define PK11_F_DSA_VERIFY 126 +#define PK11_F_DSA_INIT 127 +#define PK11_F_DSA_FINISH 128 +#define PK11_F_GET_PUB_DSA_KEY 129 +#define PK11_F_GET_PRIV_DSA_KEY 130 +#define PK11_F_DH_INIT 131 +#define PK11_F_DH_FINISH 132 +#define PK11_F_MOD_EXP_DH 133 +#define PK11_F_GET_DH_KEY 134 +#define PK11_F_FREE_ALL_SESSIONS 135 +#define PK11_F_SETUP_SESSION 136 +#define PK11_F_DESTROY_OBJECT 137 +#define PK11_F_CIPHER_INIT 138 +#define PK11_F_CIPHER_DO_CIPHER 139 +#define PK11_F_GET_CIPHER_KEY 140 +#define PK11_F_DIGEST_INIT 141 +#define PK11_F_DIGEST_UPDATE 142 +#define PK11_F_DIGEST_FINAL 143 +#define PK11_F_CHOOSE_SLOT 144 +#define PK11_F_CIPHER_FINAL 145 +#define PK11_F_LIBRARY_INIT 146 +#define PK11_F_LOAD 147 +#define PK11_F_DH_GEN_KEY 148 +#define PK11_F_DH_COMP_KEY 149 +#define PK11_F_DIGEST_COPY 150 +#define PK11_F_CIPHER_CLEANUP 151 +#define PK11_F_ACTIVE_ADD 152 +#define PK11_F_ACTIVE_DELETE 153 +#define PK11_F_CHECK_HW_MECHANISMS 154 +#define PK11_F_INIT_SYMMETRIC 155 +#define PK11_F_ADD_AES_CTR_NIDS 156 +#define PK11_F_INIT_ALL_LOCKS 157 +#define PK11_F_RETURN_SESSION 158 +#define PK11_F_GET_PIN 159 +#define PK11_F_FIND_ONE_OBJECT 160 +#define PK11_F_CHECK_TOKEN_ATTRS 161 +#define PK11_F_CACHE_PIN 162 +#define PK11_F_MLOCK_PIN_IN_MEMORY 163 +#define PK11_F_TOKEN_LOGIN 164 +#define PK11_F_TOKEN_RELOGIN 165 +#define PK11_F_RUN_ASKPASS 166 + +/* Reason codes. */ +#define PK11_R_ALREADY_LOADED 100 +#define PK11_R_DSO_FAILURE 101 +#define PK11_R_NOT_LOADED 102 +#define PK11_R_PASSED_NULL_PARAMETER 103 +#define PK11_R_COMMAND_NOT_IMPLEMENTED 104 +#define PK11_R_INITIALIZE 105 +#define PK11_R_FINALIZE 106 +#define PK11_R_GETINFO 107 +#define PK11_R_GETSLOTLIST 108 +#define PK11_R_NO_MODULUS_OR_NO_EXPONENT 109 +#define PK11_R_ATTRIBUT_SENSITIVE_OR_INVALID 110 +#define PK11_R_GETATTRIBUTVALUE 111 +#define PK11_R_NO_MODULUS 112 +#define PK11_R_NO_EXPONENT 113 +#define PK11_R_FINDOBJECTSINIT 114 +#define PK11_R_FINDOBJECTS 115 +#define PK11_R_FINDOBJECTSFINAL 116 +#define PK11_R_CREATEOBJECT 118 +#define PK11_R_DESTROYOBJECT 119 +#define PK11_R_OPENSESSION 120 +#define PK11_R_CLOSESESSION 121 +#define PK11_R_ENCRYPTINIT 122 +#define PK11_R_ENCRYPT 123 +#define PK11_R_SIGNINIT 124 +#define PK11_R_SIGN 125 +#define PK11_R_DECRYPTINIT 126 +#define PK11_R_DECRYPT 127 +#define PK11_R_VERIFYINIT 128 +#define PK11_R_VERIFY 129 +#define PK11_R_VERIFYRECOVERINIT 130 +#define PK11_R_VERIFYRECOVER 131 +#define PK11_R_GEN_KEY 132 +#define PK11_R_SEEDRANDOM 133 +#define PK11_R_GENERATERANDOM 134 +#define PK11_R_INVALID_MESSAGE_LENGTH 135 +#define PK11_R_UNKNOWN_ALGORITHM_TYPE 136 +#define PK11_R_UNKNOWN_ASN1_OBJECT_ID 137 +#define PK11_R_UNKNOWN_PADDING_TYPE 138 +#define PK11_R_PADDING_CHECK_FAILED 139 +#define PK11_R_DIGEST_TOO_BIG 140 +#define PK11_R_MALLOC_FAILURE 141 +#define PK11_R_CTRL_COMMAND_NOT_IMPLEMENTED 142 +#define PK11_R_DATA_GREATER_THAN_MOD_LEN 143 +#define PK11_R_DATA_TOO_LARGE_FOR_MODULUS 144 +#define PK11_R_MISSING_KEY_COMPONENT 145 +#define PK11_R_INVALID_SIGNATURE_LENGTH 146 +#define PK11_R_INVALID_DSA_SIGNATURE_R 147 +#define PK11_R_INVALID_DSA_SIGNATURE_S 148 +#define PK11_R_INCONSISTENT_KEY 149 +#define PK11_R_ENCRYPTUPDATE 150 +#define PK11_R_DECRYPTUPDATE 151 +#define PK11_R_DIGESTINIT 152 +#define PK11_R_DIGESTUPDATE 153 +#define PK11_R_DIGESTFINAL 154 +#define PK11_R_ENCRYPTFINAL 155 +#define PK11_R_DECRYPTFINAL 156 +#define PK11_R_NO_PRNG_SUPPORT 157 +#define PK11_R_GETTOKENINFO 158 +#define PK11_R_DERIVEKEY 159 +#define PK11_R_GET_OPERATION_STATE 160 +#define PK11_R_SET_OPERATION_STATE 161 +#define PK11_R_INVALID_HANDLE 162 +#define PK11_R_KEY_OR_IV_LEN_PROBLEM 163 +#define PK11_R_INVALID_OPERATION_TYPE 164 +#define PK11_R_ADD_NID_FAILED 165 +#define PK11_R_ATFORK_FAILED 166 +#define PK11_R_TOKEN_LOGIN_FAILED 167 +#define PK11_R_MORE_THAN_ONE_OBJECT_FOUND 168 +#define PK11_R_INVALID_PKCS11_URI 169 +#define PK11_R_COULD_NOT_READ_PIN 170 +#define PK11_R_COULD_NOT_OPEN_COMMAND 171 +#define PK11_R_PIPE_FAILED 172 +#define PK11_R_PIN_NOT_READ_FROM_COMMAND 173 +#define PK11_R_BAD_PASSPHRASE_SPEC 174 +#define PK11_R_TOKEN_NOT_INITIALIZED 175 +#define PK11_R_TOKEN_PIN_NOT_SET 176 +#define PK11_R_TOKEN_PIN_NOT_PROVIDED 177 +#define PK11_R_MISSING_OBJECT_LABEL 178 +#define PK11_R_TOKEN_ATTRS_DO_NOT_MATCH 179 +#define PK11_R_PRIV_KEY_NOT_FOUND 180 +#define PK11_R_NO_OBJECT_FOUND 181 +#define PK11_R_PIN_CACHING_POLICY_INVALID 182 +#define PK11_R_SYSCONF_FAILED 183 +#define PK11_R_MMAP_FAILED 183 +#define PK11_R_PRIV_PROC_LOCK_MEMORY_MISSING 184 +#define PK11_R_MLOCK_FAILED 185 +#define PK11_R_FORK_FAILED 186 + +#ifdef __cplusplus +} +#endif +#endif /* HW_PK11_ERR_H */ diff --git a/openssl1.0.0/engines/pkcs11/hw_pk11_pub.c b/openssl1.0.0/engines/pkcs11/hw_pk11_pub.c new file mode 100644 index 0000000..6f6b328 --- /dev/null +++ b/openssl1.0.0/engines/pkcs11/hw_pk11_pub.c @@ -0,0 +1,3277 @@ +/* + * Copyright (c) 2004, 2012, Oracle and/or its affiliates. All rights reserved. + */ + +/* crypto/engine/hw_pk11_pub.c */ +/* + * This product includes software developed by the OpenSSL Project for + * use in the OpenSSL Toolkit (http://www.openssl.org/). + * + * This project also referenced hw_pkcs11-0.9.7b.patch written by + * Afchine Madjlessi. + */ +/* + * ==================================================================== + * Copyright (c) 2000-2001 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/types.h> +#include <unistd.h> +#include <strings.h> + +#include <openssl/e_os2.h> +#include <openssl/crypto.h> +#include <openssl/engine.h> +#include <openssl/dso.h> +#include <openssl/err.h> +#include <openssl/bn.h> +#include <openssl/pem.h> +#ifndef OPENSSL_NO_RSA +#include <openssl/rsa.h> +#endif /* OPENSSL_NO_RSA */ +#ifndef OPENSSL_NO_DSA +#include <openssl/dsa.h> +#endif /* OPENSSL_NO_DSA */ +#ifndef OPENSSL_NO_DH +#include <openssl/dh.h> +#endif /* OPENSSL_NO_DH */ +#include <openssl/rand.h> +#include <openssl/objects.h> +#include <openssl/x509.h> +#include <cryptlib.h> +#include <pthread.h> +#include <libgen.h> + +#ifndef OPENSSL_NO_HW +#ifndef OPENSSL_NO_HW_PK11 + +#include <security/cryptoki.h> +#include <security/pkcs11.h> +#include "hw_pk11.h" +#include "hw_pk11_uri.h" + +static CK_BBOOL pk11_login_done = CK_FALSE; +extern CK_SLOT_ID pubkey_SLOTID; + +/* + * During the reinitialization after a detected fork we will try to login to the + * token using the passphrasedialog keyword that we inherit from the parent. + */ +char *passphrasedialog; + +#ifndef OPENSSL_NO_RSA +/* RSA stuff */ +static int pk11_RSA_public_encrypt(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa, int padding); +static int pk11_RSA_private_encrypt(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa, int padding); +static int pk11_RSA_public_decrypt(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa, int padding); +static int pk11_RSA_private_decrypt(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa, int padding); +static int pk11_RSA_init(RSA *rsa); +static int pk11_RSA_finish(RSA *rsa); +static int pk11_RSA_sign(int type, const unsigned char *m, unsigned int m_len, + unsigned char *sigret, unsigned int *siglen, const RSA *rsa); +static int pk11_RSA_verify(int dtype, const unsigned char *m, + unsigned int m_len, const unsigned char *sigbuf, unsigned int siglen, + const RSA *rsa); +EVP_PKEY *pk11_load_privkey(ENGINE*, const char *privkey_id, + UI_METHOD *ui_method, void *callback_data); +EVP_PKEY *pk11_load_pubkey(ENGINE*, const char *pubkey_id, + UI_METHOD *ui_method, void *callback_data); + +static int pk11_RSA_public_encrypt_low(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa); +static int pk11_RSA_private_encrypt_low(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa); +static int pk11_RSA_public_decrypt_low(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa); +static int pk11_RSA_private_decrypt_low(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa); + +static CK_OBJECT_HANDLE pk11_get_public_rsa_key(RSA* rsa, PK11_SESSION *sp); +static CK_OBJECT_HANDLE pk11_get_private_rsa_key(RSA* rsa, PK11_SESSION *sp); + +static int pk11_check_new_rsa_key_pub(PK11_SESSION *sp, const RSA *rsa); +static int pk11_check_new_rsa_key_priv(PK11_SESSION *sp, const RSA *rsa); +#endif + +/* DSA stuff */ +#ifndef OPENSSL_NO_DSA +static int pk11_DSA_init(DSA *dsa); +static int pk11_DSA_finish(DSA *dsa); +static DSA_SIG *pk11_dsa_do_sign(const unsigned char *dgst, int dlen, + DSA *dsa); +static int pk11_dsa_do_verify(const unsigned char *dgst, int dgst_len, + DSA_SIG *sig, DSA *dsa); + +static CK_OBJECT_HANDLE pk11_get_public_dsa_key(DSA* dsa, DSA **key_ptr, + BIGNUM **dsa_pub_num, CK_SESSION_HANDLE session); +static CK_OBJECT_HANDLE pk11_get_private_dsa_key(DSA* dsa, DSA **key_ptr, + BIGNUM **dsa_priv_num, CK_SESSION_HANDLE session); + +static int check_new_dsa_key_pub(PK11_SESSION *sp, DSA *dsa); +static int check_new_dsa_key_priv(PK11_SESSION *sp, DSA *dsa); +#endif + +/* DH stuff */ +#ifndef OPENSSL_NO_DH +static int pk11_DH_init(DH *dh); +static int pk11_DH_finish(DH *dh); +static int pk11_DH_generate_key(DH *dh); +static int pk11_DH_compute_key(unsigned char *key, + const BIGNUM *pub_key, DH *dh); + +static CK_OBJECT_HANDLE pk11_get_dh_key(DH* dh, DH **key_ptr, + BIGNUM **priv_key, CK_SESSION_HANDLE session); + +static int check_new_dh_key(PK11_SESSION *sp, DH *dh); +#endif + +static int find_one_object(PK11_OPTYPE op, CK_SESSION_HANDLE s, + CK_ATTRIBUTE_PTR ptempl, CK_ULONG nattr, CK_OBJECT_HANDLE_PTR pkey); +static int init_template_value(BIGNUM *bn, CK_VOID_PTR *pValue, + CK_ULONG *ulValueLen); +static void attr_to_BN(CK_ATTRIBUTE_PTR attr, CK_BYTE attr_data[], BIGNUM **bn); + +static int pk11_pkey_meth_nids[] = {NID_dsa}; + +/* Read mode string to be used for fopen() */ +#if SOLARIS_OPENSSL +static char *read_mode_flags = "rF"; +#else +static char *read_mode_flags = "r"; +#endif + +/* + * Increment existing or create a new reference for an asymmetric key PKCS#11 + * object handle in the active object list. If the operation fails, unlock (if + * locked), set error variable and jump to the specified label. We use this list + * so that we can track how many references to the PKCS#11 objects are used from + * all our sessions structures. If we are replacing an object reference in the + * session structure and the ref count for the reference being replaced gets to + * 0 we know that we can safely free the object itself via C_ObjectDestroy(). + * See also TRY_OBJ_DESTROY. + */ +#define KEY_HANDLE_REFHOLD(key_handle, alg_type, unlock, var, label) \ + { \ + if (pk11_active_add(key_handle, alg_type) < 0) \ + { \ + var = CK_TRUE; \ + if (unlock) \ + UNLOCK_OBJSTORE(alg_type); \ + goto label; \ + } \ + } + +/* + * Find active list entry according to object handle and return pointer to the + * entry otherwise return NULL. + * + * This function presumes it is called with lock protecting the active list + * held. + */ +static PK11_active *pk11_active_find(CK_OBJECT_HANDLE h, PK11_OPTYPE type) + { + PK11_active *entry; + + for (entry = active_list[type]; entry != NULL; entry = entry->next) + if (entry->h == h) + return (entry); + + return (NULL); + } + +/* + * Search for an entry in the active list using PKCS#11 object handle as a + * search key and return refcnt of the found/created entry or -1 in case of + * failure. + * + * This function presumes it is called with lock protecting the active list + * held. + */ +int +pk11_active_add(CK_OBJECT_HANDLE h, PK11_OPTYPE type) + { + PK11_active *entry = NULL; + + if (h == CK_INVALID_HANDLE) + { + PK11err(PK11_F_ACTIVE_ADD, PK11_R_INVALID_HANDLE); + return (-1); + } + + /* search for entry in the active list */ + if ((entry = pk11_active_find(h, type)) != NULL) + entry->refcnt++; + else + { + /* not found, create new entry and add it to the list */ + entry = OPENSSL_malloc(sizeof (PK11_active)); + if (entry == NULL) + { + PK11err(PK11_F_ACTIVE_ADD, PK11_R_MALLOC_FAILURE); + return (-1); + } + entry->h = h; + entry->refcnt = 1; + entry->prev = NULL; + entry->next = NULL; + /* connect the newly created entry to the list */ + if (active_list[type] == NULL) + active_list[type] = entry; + else /* make the entry first in the list */ + { + entry->next = active_list[type]; + active_list[type]->prev = entry; + active_list[type] = entry; + } + } + + return (entry->refcnt); + } + +/* + * Remove active list entry from the list and free it. + * + * This function presumes it is called with lock protecting the active list + * held. + */ +void +pk11_active_remove(PK11_active *entry, PK11_OPTYPE type) + { + PK11_active *prev_entry; + + /* remove the entry from the list and free it */ + if ((prev_entry = entry->prev) != NULL) + { + prev_entry->next = entry->next; + if (entry->next != NULL) + entry->next->prev = prev_entry; + } + else + { + active_list[type] = entry->next; + /* we were the first but not the only one */ + if (entry->next != NULL) + entry->next->prev = NULL; + } + + /* sanitization */ + entry->h = CK_INVALID_HANDLE; + entry->prev = NULL; + entry->next = NULL; + OPENSSL_free(entry); + } + +/* Free all entries from the active list. */ +void +pk11_free_active_list(PK11_OPTYPE type) + { + PK11_active *entry; + + /* only for asymmetric types since only they have C_Find* locks. */ + switch (type) + { + case OP_RSA: + case OP_DSA: + case OP_DH: + break; + default: + return; + } + + /* see find_lock array definition for more info on object locking */ + LOCK_OBJSTORE(type); + while ((entry = active_list[type]) != NULL) + pk11_active_remove(entry, type); + UNLOCK_OBJSTORE(type); + } + +/* + * Search for active list entry associated with given PKCS#11 object handle, + * decrement its refcnt and if it drops to 0, disconnect the entry and free it. + * + * Return 1 if the PKCS#11 object associated with the entry has no references, + * return 0 if there is at least one reference, -1 on error. + * + * This function presumes it is called with lock protecting the active list + * held. + */ +int +pk11_active_delete(CK_OBJECT_HANDLE h, PK11_OPTYPE type) + { + PK11_active *entry = NULL; + + if ((entry = pk11_active_find(h, type)) == NULL) + { + PK11err(PK11_F_ACTIVE_DELETE, PK11_R_INVALID_HANDLE); + return (-1); + } + + OPENSSL_assert(entry->refcnt > 0); + entry->refcnt--; + if (entry->refcnt == 0) + { + pk11_active_remove(entry, type); + return (1); + } + + return (0); + } + +#ifndef OPENSSL_NO_RSA +/* Our internal RSA_METHOD that we provide pointers to */ +static RSA_METHOD pk11_rsa = + { + "PKCS#11 RSA method", + pk11_RSA_public_encrypt, /* rsa_pub_encrypt */ + pk11_RSA_public_decrypt, /* rsa_pub_decrypt */ + pk11_RSA_private_encrypt, /* rsa_priv_encrypt */ + pk11_RSA_private_decrypt, /* rsa_priv_decrypt */ + NULL, /* rsa_mod_exp */ + NULL, /* bn_mod_exp */ + pk11_RSA_init, /* init */ + pk11_RSA_finish, /* finish */ + RSA_FLAG_SIGN_VER, /* flags */ + NULL, /* app_data */ + pk11_RSA_sign, /* rsa_sign */ + pk11_RSA_verify, /* rsa_verify */ + /* Internal rsa_keygen will be used if this is NULL. */ + NULL /* rsa_keygen */ + }; + +RSA_METHOD * +PK11_RSA(void) + { + return (&pk11_rsa); + } +#endif + +#ifndef OPENSSL_NO_DSA +/* Our internal DSA_METHOD that we provide pointers to */ +static DSA_METHOD pk11_dsa = + { + "PKCS#11 DSA method", + pk11_dsa_do_sign, /* dsa_do_sign */ + NULL, /* dsa_sign_setup */ + pk11_dsa_do_verify, /* dsa_do_verify */ + NULL, /* dsa_mod_exp */ + NULL, /* bn_mod_exp */ + pk11_DSA_init, /* init */ + pk11_DSA_finish, /* finish */ + 0, /* flags */ + NULL /* app_data */ + }; + +DSA_METHOD * +PK11_DSA(void) + { + return (&pk11_dsa); + } +#endif + +#ifndef OPENSSL_NO_DH +/* + * PKCS #11 V2.20, section 11.2 specifies that the number of bytes needed for + * output buffer may somewhat exceed the precise number of bytes needed, but + * should not exceed it by a large amount. That may be caused, for example, by + * rounding it up to multiple of X in the underlying bignum library. 8 should be + * enough. + */ +#define DH_BUF_RESERVE 8 + +/* Our internal DH_METHOD that we provide pointers to */ +static DH_METHOD pk11_dh = + { + "PKCS#11 DH method", + pk11_DH_generate_key, /* generate_key */ + pk11_DH_compute_key, /* compute_key */ + NULL, /* bn_mod_exp */ + pk11_DH_init, /* init */ + pk11_DH_finish, /* finish */ + 0, /* flags */ + NULL, /* app_data */ + NULL /* generate_params */ + }; + +DH_METHOD * +PK11_DH(void) + { + return (&pk11_dh); + } +#endif + +/* Size of an SSL signature: MD5+SHA1 */ +#define SSL_SIG_LENGTH 36 + +/* Lengths of DSA data and signature */ +#define DSA_DATA_LEN 20 +#define DSA_SIGNATURE_LEN 40 + +static CK_BBOOL pk11_true = CK_TRUE; +static CK_BBOOL pk11_false = CK_FALSE; + +#ifndef OPENSSL_NO_RSA +/* + * Similar to OpenSSL to take advantage of the paddings. The goal is to + * support all paddings in this engine although PK11 library does not + * support all the paddings used in OpenSSL. + * The input errors should have been checked in the padding functions. + */ +static int pk11_RSA_public_encrypt(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa, int padding) + { + int i, num = 0, r = -1; + unsigned char *buf = NULL; + + num = BN_num_bytes(rsa->n); + if ((buf = (unsigned char *)OPENSSL_malloc(num)) == NULL) + { + PK11err(PK11_F_RSA_PUB_ENC, PK11_R_MALLOC_FAILURE); + goto err; + } + + switch (padding) + { + case RSA_PKCS1_PADDING: + i = RSA_padding_add_PKCS1_type_2(buf, num, from, flen); + break; +#ifndef OPENSSL_NO_SHA + case RSA_PKCS1_OAEP_PADDING: + i = RSA_padding_add_PKCS1_OAEP(buf, num, from, flen, NULL, 0); + break; +#endif + case RSA_SSLV23_PADDING: + i = RSA_padding_add_SSLv23(buf, num, from, flen); + break; + case RSA_NO_PADDING: + i = RSA_padding_add_none(buf, num, from, flen); + break; + default: + PK11err(PK11_F_RSA_PUB_ENC, PK11_R_UNKNOWN_PADDING_TYPE); + goto err; + } + if (i <= 0) goto err; + + /* PK11 functions are called here */ + r = pk11_RSA_public_encrypt_low(num, buf, to, rsa); +err: + if (buf != NULL) + { + OPENSSL_cleanse(buf, num); + OPENSSL_free(buf); + } + return (r); + } + + +/* + * Similar to Openssl to take advantage of the paddings. The input errors + * should be caught in the padding functions + */ +static int pk11_RSA_private_encrypt(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa, int padding) + { + int i, num = 0, r = -1; + unsigned char *buf = NULL; + + num = BN_num_bytes(rsa->n); + if ((buf = (unsigned char *)OPENSSL_malloc(num)) == NULL) + { + PK11err(PK11_F_RSA_PRIV_ENC, PK11_R_MALLOC_FAILURE); + goto err; + } + + switch (padding) + { + case RSA_PKCS1_PADDING: + i = RSA_padding_add_PKCS1_type_1(buf, num, from, flen); + break; + case RSA_NO_PADDING: + i = RSA_padding_add_none(buf, num, from, flen); + break; + case RSA_SSLV23_PADDING: + default: + PK11err(PK11_F_RSA_PRIV_ENC, PK11_R_UNKNOWN_PADDING_TYPE); + goto err; + } + if (i <= 0) goto err; + + /* PK11 functions are called here */ + r = pk11_RSA_private_encrypt_low(num, buf, to, rsa); +err: + if (buf != NULL) + { + OPENSSL_cleanse(buf, num); + OPENSSL_free(buf); + } + return (r); + } + +/* Similar to OpenSSL code. Input errors are also checked here */ +static int pk11_RSA_private_decrypt(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa, int padding) + { + BIGNUM f; + int j, num = 0, r = -1; + unsigned char *p; + unsigned char *buf = NULL; + + BN_init(&f); + + num = BN_num_bytes(rsa->n); + + if ((buf = (unsigned char *)OPENSSL_malloc(num)) == NULL) + { + PK11err(PK11_F_RSA_PRIV_DEC, PK11_R_MALLOC_FAILURE); + goto err; + } + + /* + * This check was for equality but PGP does evil things + * and chops off the top '0' bytes + */ + if (flen > num) + { + PK11err(PK11_F_RSA_PRIV_DEC, + PK11_R_DATA_GREATER_THAN_MOD_LEN); + goto err; + } + + /* make data into a big number */ + if (BN_bin2bn(from, (int)flen, &f) == NULL) + goto err; + + if (BN_ucmp(&f, rsa->n) >= 0) + { + PK11err(PK11_F_RSA_PRIV_DEC, + PK11_R_DATA_TOO_LARGE_FOR_MODULUS); + goto err; + } + + /* PK11 functions are called here */ + r = pk11_RSA_private_decrypt_low(flen, from, buf, rsa); + + /* + * PK11 CKM_RSA_X_509 mechanism pads 0's at the beginning. + * Needs to skip these 0's paddings here. + */ + for (j = 0; j < r; j++) + if (buf[j] != 0) + break; + + p = buf + j; + j = r - j; /* j is only used with no-padding mode */ + + switch (padding) + { + case RSA_PKCS1_PADDING: + r = RSA_padding_check_PKCS1_type_2(to, num, p, j, num); + break; +#ifndef OPENSSL_NO_SHA + case RSA_PKCS1_OAEP_PADDING: + r = RSA_padding_check_PKCS1_OAEP(to, num, p, j, num, NULL, 0); + break; +#endif + case RSA_SSLV23_PADDING: + r = RSA_padding_check_SSLv23(to, num, p, j, num); + break; + case RSA_NO_PADDING: + r = RSA_padding_check_none(to, num, p, j, num); + break; + default: + PK11err(PK11_F_RSA_PRIV_DEC, PK11_R_UNKNOWN_PADDING_TYPE); + goto err; + } + if (r < 0) + PK11err(PK11_F_RSA_PRIV_DEC, PK11_R_PADDING_CHECK_FAILED); + +err: + BN_clear_free(&f); + if (buf != NULL) + { + OPENSSL_cleanse(buf, num); + OPENSSL_free(buf); + } + return (r); + } + +/* Similar to OpenSSL code. Input errors are also checked here */ +static int pk11_RSA_public_decrypt(int flen, const unsigned char *from, + unsigned char *to, RSA *rsa, int padding) + { + BIGNUM f; + int i, num = 0, r = -1; + unsigned char *p; + unsigned char *buf = NULL; + + BN_init(&f); + num = BN_num_bytes(rsa->n); + buf = (unsigned char *)OPENSSL_malloc(num); + if (buf == NULL) + { + PK11err(PK11_F_RSA_PUB_DEC, PK11_R_MALLOC_FAILURE); + goto err; + } + + /* + * This check was for equality but PGP does evil things + * and chops off the top '0' bytes + */ + if (flen > num) + { + PK11err(PK11_F_RSA_PUB_DEC, PK11_R_DATA_GREATER_THAN_MOD_LEN); + goto err; + } + + if (BN_bin2bn(from, flen, &f) == NULL) + goto err; + + if (BN_ucmp(&f, rsa->n) >= 0) + { + PK11err(PK11_F_RSA_PUB_DEC, + PK11_R_DATA_TOO_LARGE_FOR_MODULUS); + goto err; + } + + /* PK11 functions are called here */ + r = pk11_RSA_public_decrypt_low(flen, from, buf, rsa); + + /* + * PK11 CKM_RSA_X_509 mechanism pads 0's at the beginning. + * Needs to skip these 0's here + */ + for (i = 0; i < r; i++) + if (buf[i] != 0) + break; + + p = buf + i; + i = r - i; /* i is only used with no-padding mode */ + + switch (padding) + { + case RSA_PKCS1_PADDING: + r = RSA_padding_check_PKCS1_type_1(to, num, p, i, num); + break; + case RSA_NO_PADDING: + r = RSA_padding_check_none(to, num, p, i, num); + break; + default: + PK11err(PK11_F_RSA_PUB_DEC, PK11_R_UNKNOWN_PADDING_TYPE); + goto err; + } + if (r < 0) + PK11err(PK11_F_RSA_PUB_DEC, PK11_R_PADDING_CHECK_FAILED); + +err: + BN_clear_free(&f); + if (buf != NULL) + { + OPENSSL_cleanse(buf, num); + OPENSSL_free(buf); + } + return (r); + } + +/* + * This function implements RSA public encryption using C_EncryptInit and + * C_Encrypt pk11 interfaces. Note that the CKM_RSA_X_509 is used here. + * The calling function allocated sufficient memory in "to" to store results. + */ +static int pk11_RSA_public_encrypt_low(int flen, + const unsigned char *from, unsigned char *to, RSA *rsa) + { + CK_ULONG bytes_encrypted = flen; + int retval = -1; + CK_RV rv; + CK_MECHANISM mech_rsa = {CKM_RSA_X_509, NULL, 0}; + CK_MECHANISM *p_mech = &mech_rsa; + CK_OBJECT_HANDLE h_pub_key = CK_INVALID_HANDLE; + PK11_SESSION *sp; + + if ((sp = pk11_get_session(OP_RSA)) == NULL) + return (-1); + + (void) pk11_check_new_rsa_key_pub(sp, rsa); + + h_pub_key = sp->opdata_rsa_pub_key; + if (h_pub_key == CK_INVALID_HANDLE) + h_pub_key = sp->opdata_rsa_pub_key = + pk11_get_public_rsa_key(rsa, sp); + + if (h_pub_key != CK_INVALID_HANDLE) + { + rv = pFuncList->C_EncryptInit(sp->session, p_mech, + h_pub_key); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_RSA_PUB_ENC_LOW, + PK11_R_ENCRYPTINIT, rv); + pk11_return_session(sp, OP_RSA); + return (-1); + } + + rv = pFuncList->C_Encrypt(sp->session, + (unsigned char *)from, flen, to, &bytes_encrypted); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_RSA_PUB_ENC_LOW, + PK11_R_ENCRYPT, rv); + pk11_return_session(sp, OP_RSA); + return (-1); + } + retval = bytes_encrypted; + } + + pk11_return_session(sp, OP_RSA); + return (retval); + } + + +/* + * This function implements RSA private encryption using C_SignInit and + * C_Sign pk11 APIs. Note that CKM_RSA_X_509 is used here. + * The calling function allocated sufficient memory in "to" to store results. + */ +static int pk11_RSA_private_encrypt_low(int flen, + const unsigned char *from, unsigned char *to, RSA *rsa) + { + CK_ULONG ul_sig_len = flen; + int retval = -1; + CK_RV rv; + CK_MECHANISM mech_rsa = {CKM_RSA_X_509, NULL, 0}; + CK_MECHANISM *p_mech = &mech_rsa; + CK_OBJECT_HANDLE h_priv_key = CK_INVALID_HANDLE; + PK11_SESSION *sp; + + if ((sp = pk11_get_session(OP_RSA)) == NULL) + return (-1); + + (void) pk11_check_new_rsa_key_priv(sp, rsa); + + h_priv_key = sp->opdata_rsa_priv_key; + if (h_priv_key == CK_INVALID_HANDLE) + h_priv_key = sp->opdata_rsa_priv_key = + pk11_get_private_rsa_key(rsa, sp); + + if (h_priv_key != CK_INVALID_HANDLE) + { + rv = pFuncList->C_SignInit(sp->session, p_mech, + h_priv_key); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_RSA_PRIV_ENC_LOW, + PK11_R_SIGNINIT, rv); + pk11_return_session(sp, OP_RSA); + return (-1); + } + + rv = pFuncList->C_Sign(sp->session, + (unsigned char *)from, flen, to, &ul_sig_len); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_RSA_PRIV_ENC_LOW, PK11_R_SIGN, + rv); + pk11_return_session(sp, OP_RSA); + return (-1); + } + + retval = ul_sig_len; + } + + pk11_return_session(sp, OP_RSA); + return (retval); + } + + +/* + * This function implements RSA private decryption using C_DecryptInit and + * C_Decrypt pk11 APIs. Note that CKM_RSA_X_509 mechanism is used here. + * The calling function allocated sufficient memory in "to" to store results. + */ +static int pk11_RSA_private_decrypt_low(int flen, + const unsigned char *from, unsigned char *to, RSA *rsa) + { + CK_ULONG bytes_decrypted = flen; + int retval = -1; + CK_RV rv; + CK_MECHANISM mech_rsa = {CKM_RSA_X_509, NULL, 0}; + CK_MECHANISM *p_mech = &mech_rsa; + CK_OBJECT_HANDLE h_priv_key; + PK11_SESSION *sp; + + if ((sp = pk11_get_session(OP_RSA)) == NULL) + return (-1); + + (void) pk11_check_new_rsa_key_priv(sp, rsa); + + h_priv_key = sp->opdata_rsa_priv_key; + if (h_priv_key == CK_INVALID_HANDLE) + h_priv_key = sp->opdata_rsa_priv_key = + pk11_get_private_rsa_key(rsa, sp); + + if (h_priv_key != CK_INVALID_HANDLE) + { + rv = pFuncList->C_DecryptInit(sp->session, p_mech, + h_priv_key); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_RSA_PRIV_DEC_LOW, + PK11_R_DECRYPTINIT, rv); + pk11_return_session(sp, OP_RSA); + return (-1); + } + + rv = pFuncList->C_Decrypt(sp->session, + (unsigned char *)from, flen, to, &bytes_decrypted); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_RSA_PRIV_DEC_LOW, + PK11_R_DECRYPT, rv); + pk11_return_session(sp, OP_RSA); + return (-1); + } + retval = bytes_decrypted; + } + + pk11_return_session(sp, OP_RSA); + return (retval); + } + + +/* + * This function implements RSA public decryption using C_VerifyRecoverInit + * and C_VerifyRecover pk11 APIs. Note that CKM_RSA_X_509 is used here. + * The calling function allocated sufficient memory in "to" to store results. + */ +static int pk11_RSA_public_decrypt_low(int flen, + const unsigned char *from, unsigned char *to, RSA *rsa) + { + CK_ULONG bytes_decrypted = flen; + int retval = -1; + CK_RV rv; + CK_MECHANISM mech_rsa = {CKM_RSA_X_509, NULL, 0}; + CK_MECHANISM *p_mech = &mech_rsa; + CK_OBJECT_HANDLE h_pub_key = CK_INVALID_HANDLE; + PK11_SESSION *sp; + + if ((sp = pk11_get_session(OP_RSA)) == NULL) + return (-1); + + (void) pk11_check_new_rsa_key_pub(sp, rsa); + + h_pub_key = sp->opdata_rsa_pub_key; + if (h_pub_key == CK_INVALID_HANDLE) + h_pub_key = sp->opdata_rsa_pub_key = + pk11_get_public_rsa_key(rsa, sp); + + if (h_pub_key != CK_INVALID_HANDLE) + { + rv = pFuncList->C_VerifyRecoverInit(sp->session, + p_mech, h_pub_key); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_RSA_PUB_DEC_LOW, + PK11_R_VERIFYRECOVERINIT, rv); + pk11_return_session(sp, OP_RSA); + return (-1); + } + + rv = pFuncList->C_VerifyRecover(sp->session, + (unsigned char *)from, flen, to, &bytes_decrypted); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_RSA_PUB_DEC_LOW, + PK11_R_VERIFYRECOVER, rv); + pk11_return_session(sp, OP_RSA); + return (-1); + } + retval = bytes_decrypted; + } + + pk11_return_session(sp, OP_RSA); + return (retval); + } + +static int pk11_RSA_init(RSA *rsa) + { + /* + * This flag in the RSA_METHOD enables the new rsa_sign, + * rsa_verify functions. See rsa.h for details. + */ + rsa->flags |= RSA_FLAG_SIGN_VER; + + return (1); + } + +static int pk11_RSA_finish(RSA *rsa) + { + /* + * Since we are overloading OpenSSL's native RSA_eay_finish() we need + * to do the same as in the original function, i.e. to free bignum + * structures. + */ + if (rsa->_method_mod_n != NULL) + BN_MONT_CTX_free(rsa->_method_mod_n); + if (rsa->_method_mod_p != NULL) + BN_MONT_CTX_free(rsa->_method_mod_p); + if (rsa->_method_mod_q != NULL) + BN_MONT_CTX_free(rsa->_method_mod_q); + + return (1); + } + +/* + * Standard engine interface function. Majority codes here are from + * rsa/rsa_sign.c. We replaced the decrypt function call by C_Sign of PKCS#11. + * See more details in rsa/rsa_sign.c + */ +static int pk11_RSA_sign(int type, const unsigned char *m, unsigned int m_len, + unsigned char *sigret, unsigned int *siglen, const RSA *rsa) + { + X509_SIG sig; + ASN1_TYPE parameter; + int i, j; + unsigned char *p, *s = NULL; + X509_ALGOR algor; + ASN1_OCTET_STRING digest; + CK_RV rv; + CK_MECHANISM mech_rsa = {CKM_RSA_PKCS, NULL, 0}; + CK_MECHANISM *p_mech = &mech_rsa; + CK_OBJECT_HANDLE h_priv_key; + PK11_SESSION *sp = NULL; + int ret = 0; + unsigned long ulsiglen; + + /* Encode the digest */ + /* Special case: SSL signature, just check the length */ + if (type == NID_md5_sha1) + { + if (m_len != SSL_SIG_LENGTH) + { + PK11err(PK11_F_RSA_SIGN, + PK11_R_INVALID_MESSAGE_LENGTH); + goto err; + } + i = SSL_SIG_LENGTH; + s = (unsigned char *)m; + } + else + { + sig.algor = &algor; + sig.algor->algorithm = OBJ_nid2obj(type); + if (sig.algor->algorithm == NULL) + { + PK11err(PK11_F_RSA_SIGN, + PK11_R_UNKNOWN_ALGORITHM_TYPE); + goto err; + } + if (sig.algor->algorithm->length == 0) + { + PK11err(PK11_F_RSA_SIGN, + PK11_R_UNKNOWN_ASN1_OBJECT_ID); + goto err; + } + parameter.type = V_ASN1_NULL; + parameter.value.ptr = NULL; + sig.algor->parameter = ¶meter; + + sig.digest = &digest; + sig.digest->data = (unsigned char *)m; + sig.digest->length = m_len; + + i = i2d_X509_SIG(&sig, NULL); + } + + j = RSA_size(rsa); + if ((i - RSA_PKCS1_PADDING) > j) + { + PK11err(PK11_F_RSA_SIGN, PK11_R_DIGEST_TOO_BIG); + goto err; + } + + if (type != NID_md5_sha1) + { + s = (unsigned char *)OPENSSL_malloc((unsigned int)(j + 1)); + if (s == NULL) + { + PK11err(PK11_F_RSA_SIGN, PK11_R_MALLOC_FAILURE); + goto err; + } + p = s; + (void) i2d_X509_SIG(&sig, &p); + } + + if ((sp = pk11_get_session(OP_RSA)) == NULL) + goto err; + + (void) pk11_check_new_rsa_key_priv(sp, rsa); + + h_priv_key = sp->opdata_rsa_priv_key; + if (h_priv_key == CK_INVALID_HANDLE) + h_priv_key = sp->opdata_rsa_priv_key = + pk11_get_private_rsa_key((RSA *)rsa, sp); + + if (h_priv_key != CK_INVALID_HANDLE) + { + rv = pFuncList->C_SignInit(sp->session, p_mech, h_priv_key); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_RSA_SIGN, PK11_R_SIGNINIT, rv); + goto err; + } + + ulsiglen = j; + rv = pFuncList->C_Sign(sp->session, s, i, sigret, + (CK_ULONG_PTR) &ulsiglen); + *siglen = ulsiglen; + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_RSA_SIGN, PK11_R_SIGN, rv); + goto err; + } + ret = 1; + } + +err: + if (type != NID_md5_sha1) + { + (void) memset(s, 0, (unsigned int)(j + 1)); + OPENSSL_free(s); + } + + pk11_return_session(sp, OP_RSA); + return (ret); + } + +static int pk11_RSA_verify(int type, const unsigned char *m, + unsigned int m_len, const unsigned char *sigbuf, unsigned int siglen, + const RSA *rsa) + { + X509_SIG sig; + ASN1_TYPE parameter; + int i, j; + unsigned char *p, *s = NULL; + X509_ALGOR algor; + ASN1_OCTET_STRING digest; + CK_RV rv; + CK_MECHANISM mech_rsa = {CKM_RSA_PKCS, NULL, 0}; + CK_MECHANISM *p_mech = &mech_rsa; + CK_OBJECT_HANDLE h_pub_key; + PK11_SESSION *sp = NULL; + int ret = 0; + + /* Encode the digest */ + /* Special case: SSL signature, just check the length */ + if (type == NID_md5_sha1) + { + if (m_len != SSL_SIG_LENGTH) + { + PK11err(PK11_F_RSA_VERIFY, + PK11_R_INVALID_MESSAGE_LENGTH); + goto err; + } + i = SSL_SIG_LENGTH; + s = (unsigned char *)m; + } + else + { + sig.algor = &algor; + sig.algor->algorithm = OBJ_nid2obj(type); + if (sig.algor->algorithm == NULL) + { + PK11err(PK11_F_RSA_VERIFY, + PK11_R_UNKNOWN_ALGORITHM_TYPE); + goto err; + } + if (sig.algor->algorithm->length == 0) + { + PK11err(PK11_F_RSA_VERIFY, + PK11_R_UNKNOWN_ASN1_OBJECT_ID); + goto err; + } + parameter.type = V_ASN1_NULL; + parameter.value.ptr = NULL; + sig.algor->parameter = ¶meter; + sig.digest = &digest; + sig.digest->data = (unsigned char *)m; + sig.digest->length = m_len; + i = i2d_X509_SIG(&sig, NULL); + } + + j = RSA_size(rsa); + if ((i - RSA_PKCS1_PADDING) > j) + { + PK11err(PK11_F_RSA_VERIFY, PK11_R_DIGEST_TOO_BIG); + goto err; + } + + if (type != NID_md5_sha1) + { + s = (unsigned char *)OPENSSL_malloc((unsigned int)(j + 1)); + if (s == NULL) + { + PK11err(PK11_F_RSA_VERIFY, PK11_R_MALLOC_FAILURE); + goto err; + } + p = s; + (void) i2d_X509_SIG(&sig, &p); + } + + if ((sp = pk11_get_session(OP_RSA)) == NULL) + goto err; + + (void) pk11_check_new_rsa_key_pub(sp, rsa); + + h_pub_key = sp->opdata_rsa_pub_key; + if (h_pub_key == CK_INVALID_HANDLE) + h_pub_key = sp->opdata_rsa_pub_key = + pk11_get_public_rsa_key((RSA *)rsa, sp); + + if (h_pub_key != CK_INVALID_HANDLE) + { + rv = pFuncList->C_VerifyInit(sp->session, p_mech, + h_pub_key); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_RSA_VERIFY, PK11_R_VERIFYINIT, + rv); + goto err; + } + rv = pFuncList->C_Verify(sp->session, s, i, + (CK_BYTE_PTR)sigbuf, (CK_ULONG)siglen); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_RSA_VERIFY, PK11_R_VERIFY, rv); + goto err; + } + ret = 1; + } + +err: + if (type != NID_md5_sha1) + { + (void) memset(s, 0, (unsigned int)siglen); + OPENSSL_free(s); + } + + pk11_return_session(sp, OP_RSA); + return (ret); + } + +#define MAXATTR 1024 +/* + * Load RSA private key from a file or get its PKCS#11 handle if stored in the + * PKCS#11 token. + */ +/* ARGSUSED */ +EVP_PKEY *pk11_load_privkey(ENGINE* e, const char *privkey_id, + UI_METHOD *ui_method, void *callback_data) + { + EVP_PKEY *pkey = NULL; + FILE *privkey; + CK_OBJECT_HANDLE h_priv_key = CK_INVALID_HANDLE; + RSA *rsa = NULL; + PK11_SESSION *sp; + /* Anything else below is needed for the key by reference extension. */ + const char *file; + int ret; + pkcs11_uri uri_struct; + CK_RV rv; + CK_BBOOL is_token = CK_TRUE; + CK_BBOOL rollback = CK_FALSE; + CK_BYTE attr_data[8][MAXATTR]; + CK_OBJECT_CLASS key_class = CKO_PRIVATE_KEY; + CK_OBJECT_HANDLE ks_key = CK_INVALID_HANDLE; /* key in keystore */ + + /* We look for private keys only. */ + CK_ATTRIBUTE search_templ[] = + { + {CKA_TOKEN, &is_token, sizeof (is_token)}, + {CKA_CLASS, &key_class, sizeof (key_class)}, + {CKA_LABEL, NULL, 0} + }; + + /* + * These public attributes are needed to initialize the OpenSSL RSA + * structure with something we can use to look up the key. Note that we + * never ask for private components. + */ + CK_ATTRIBUTE get_templ[] = + { + {CKA_MODULUS, (void *)attr_data[0], MAXATTR}, /* n */ + {CKA_PUBLIC_EXPONENT, (void *)attr_data[1], MAXATTR}, /* e */ + }; + + if ((sp = pk11_get_session(OP_RSA)) == NULL) + return (NULL); + + /* + * The next function will decide whether we are going to access keys in + * the token or read them from plain files. It all depends on what is in + * the 'privkey_id' parameter. + */ + ret = pk11_process_pkcs11_uri(privkey_id, &uri_struct, &file); + + if (ret == 0) + goto err; + + /* We will try to access a key from a PKCS#11 token. */ + if (ret == 1) + { + if (pk11_check_token_attrs(&uri_struct) == 0) + goto err; + + search_templ[2].pValue = uri_struct.object; + search_templ[2].ulValueLen = strlen(search_templ[2].pValue); + + if (pk11_token_login(sp->session, &pk11_login_done, + &uri_struct, CK_TRUE) == 0) + goto err; + + /* + * Now let's try to find the key in the token. It is a failure + * if we can't find it. + */ + if (find_one_object(OP_RSA, sp->session, search_templ, 3, + &ks_key) == 0) + goto err; + + /* + * Free the structure now. Note that we use uri_struct's field + * directly in the template so we cannot free it until the find + * is done. + */ + pk11_free_pkcs11_uri(&uri_struct, 0); + + /* + * We might have a cache hit which we could confirm according to + * the 'n'/'e' params, RSA public pointer as NULL, and non-NULL + * RSA private pointer. However, it is easier just to recreate + * everything. We expect the keys to be loaded once and used + * many times. We do not check the return value because even in + * case of failure the sp structure will have both key pointer + * and object handle cleaned and pk11_destroy_object() reports + * the failure to the OpenSSL error message buffer. + */ + (void) pk11_destroy_rsa_object_priv(sp, CK_TRUE); + + sp->opdata_rsa_priv_key = ks_key; + /* This object shall not be deleted on a cache miss. */ + sp->persistent = CK_TRUE; + + if ((rsa = sp->opdata_rsa_priv = RSA_new_method(e)) == NULL) + goto err; + + if ((rv = pFuncList->C_GetAttributeValue(sp->session, ks_key, + get_templ, 2)) != CKR_OK) + { + PK11err_add_data(PK11_F_LOAD_PRIVKEY, + PK11_R_GETATTRIBUTVALUE, rv); + goto err; + } + + /* + * Cache the RSA private structure pointer. We do not use it now + * for key-by-ref keys but let's do it for consistency reasons. + */ + sp->opdata_rsa_priv = rsa; + + /* + * We do not use pk11_get_private_rsa_key() here so we must take + * care of handle management ourselves. + */ + KEY_HANDLE_REFHOLD(ks_key, OP_RSA, CK_FALSE, rollback, err); + + /* + * Those are the sensitive components we do not want to export + * from the token at all: rsa->(d|p|q|dmp1|dmq1|iqmp). + */ + attr_to_BN(&get_templ[0], attr_data[0], &rsa->n); + attr_to_BN(&get_templ[1], attr_data[1], &rsa->e); + /* + * Must have 'n'/'e' components in the session structure as + * well. They serve as a public look-up key for the private key + * in the keystore. + */ + attr_to_BN(&get_templ[0], attr_data[0], &sp->opdata_rsa_n_num); + attr_to_BN(&get_templ[1], attr_data[1], &sp->opdata_rsa_e_num); + + if ((pkey = EVP_PKEY_new()) == NULL) + goto err; + + if (EVP_PKEY_set1_RSA(pkey, rsa) == 0) + goto err; + } + else + if ((privkey = fopen(file, read_mode_flags)) != NULL) + { + pkey = PEM_read_PrivateKey(privkey, NULL, NULL, NULL); + (void) fclose(privkey); + if (pkey != NULL) + { + rsa = EVP_PKEY_get1_RSA(pkey); + if (rsa != NULL) + { + (void) pk11_check_new_rsa_key_priv(sp, + rsa); + + h_priv_key = sp->opdata_rsa_priv_key = + pk11_get_private_rsa_key(rsa, sp); + if (h_priv_key == CK_INVALID_HANDLE) + goto err; + } + else + goto err; + } + } + + pk11_return_session(sp, OP_RSA); + return (pkey); +err: + if (rsa != NULL) + RSA_free(rsa); + if (pkey != NULL) + { + EVP_PKEY_free(pkey); + pkey = NULL; + } + return (pkey); + } + +/* Load RSA public key from a file or load it from the PKCS#11 token. */ +/* ARGSUSED */ +EVP_PKEY *pk11_load_pubkey(ENGINE* e, const char *pubkey_id, + UI_METHOD *ui_method, void *callback_data) + { + EVP_PKEY *pkey = NULL; + FILE *pubkey; + CK_OBJECT_HANDLE h_pub_key = CK_INVALID_HANDLE; + RSA *rsa = NULL; + PK11_SESSION *sp; + /* everything else below needed for key by reference extension */ + int ret; + const char *file; + pkcs11_uri uri_struct; + CK_RV rv; + CK_BBOOL is_token = CK_TRUE; + CK_BYTE attr_data[2][MAXATTR]; + CK_OBJECT_CLASS key_class = CKO_PUBLIC_KEY; + CK_OBJECT_HANDLE ks_key = CK_INVALID_HANDLE; /* key in keystore */ + + CK_ATTRIBUTE search_templ[] = + { + {CKA_TOKEN, &is_token, sizeof (is_token)}, + {CKA_CLASS, &key_class, sizeof (key_class)}, + {CKA_LABEL, NULL, 0} + }; + + /* + * These public attributes are needed to initialize OpenSSL RSA + * structure with something we can use to look up the key. + */ + CK_ATTRIBUTE get_templ[] = + { + {CKA_MODULUS, (void *)attr_data[0], MAXATTR}, /* n */ + {CKA_PUBLIC_EXPONENT, (void *)attr_data[1], MAXATTR}, /* e */ + }; + + if ((sp = pk11_get_session(OP_RSA)) == NULL) + return (NULL); + + ret = pk11_process_pkcs11_uri(pubkey_id, &uri_struct, &file); + + if (ret == 0) + goto err; + + if (ret == 1) + { + if (pk11_check_token_attrs(&uri_struct) == 0) + goto err; + + search_templ[2].pValue = uri_struct.object; + search_templ[2].ulValueLen = strlen(search_templ[2].pValue); + + if (pk11_token_login(sp->session, &pk11_login_done, + &uri_struct, CK_FALSE) == 0) + goto err; + + if (find_one_object(OP_RSA, sp->session, search_templ, 3, + &ks_key) == 0) + { + goto err; + } + + /* + * Free the structure now. Note that we use uri_struct's field + * directly in the template so we can't free until find is done. + */ + pk11_free_pkcs11_uri(&uri_struct, 0); + /* + * We load a new public key so we will create a new RSA + * structure. No cache hit is possible. + */ + (void) pk11_destroy_rsa_object_pub(sp, CK_TRUE); + sp->opdata_rsa_pub_key = ks_key; + + if ((rsa = sp->opdata_rsa_pub = RSA_new_method(e)) == NULL) + goto err; + + if ((rv = pFuncList->C_GetAttributeValue(sp->session, ks_key, + get_templ, 2)) != CKR_OK) + { + PK11err_add_data(PK11_F_LOAD_PUBKEY, + PK11_R_GETATTRIBUTVALUE, rv); + goto err; + } + + /* + * Cache the RSA public structure pointer. + */ + sp->opdata_rsa_pub = rsa; + + /* + * These are the sensitive components we do not want to export + * from the token at all: rsa->(d|p|q|dmp1|dmq1|iqmp). + */ + attr_to_BN(&get_templ[0], attr_data[0], &rsa->n); + attr_to_BN(&get_templ[1], attr_data[1], &rsa->e); + + if ((pkey = EVP_PKEY_new()) == NULL) + goto err; + + if (EVP_PKEY_set1_RSA(pkey, rsa) == 0) + goto err; + + /* + * Create a session object from it so that when calling + * pk11_get_public_rsa_key() the next time, we can find it. The + * reason why we do that is that we cannot tell from the RSA + * structure (OpenSSL RSA structure does not have any room for + * additional data used by the engine, for example) if it bears + * a public key stored in the keystore or not so it's better if + * we always have a session key. Note that this is different + * from what we do for the private keystore objects but in that + * case, we can tell from the RSA structure that the keystore + * object is in play - the 'd' component is NULL in that case. + */ + h_pub_key = sp->opdata_rsa_pub_key = + pk11_get_public_rsa_key(rsa, sp); + if (h_pub_key == CK_INVALID_HANDLE) + goto err; + } + else + if ((pubkey = fopen(file, read_mode_flags)) != NULL) + { + pkey = PEM_read_PUBKEY(pubkey, NULL, NULL, NULL); + (void) fclose(pubkey); + if (pkey != NULL) + { + rsa = EVP_PKEY_get1_RSA(pkey); + if (rsa != NULL) + { + /* + * This will always destroy the RSA + * object since we have a new RSA + * structure here. + */ + (void) pk11_check_new_rsa_key_pub(sp, + rsa); + + h_pub_key = sp->opdata_rsa_pub_key = + pk11_get_public_rsa_key(rsa, sp); + if (h_pub_key == CK_INVALID_HANDLE) + { + EVP_PKEY_free(pkey); + pkey = NULL; + } + } + else + { + EVP_PKEY_free(pkey); + pkey = NULL; + } + } + } + + pk11_return_session(sp, OP_RSA); + return (pkey); +err: + if (rsa != NULL) + RSA_free(rsa); + if (pkey != NULL) + { + EVP_PKEY_free(pkey); + pkey = NULL; + } + return (pkey); + } + +/* + * Get a public key object in a session from a given rsa structure. If the + * PKCS#11 session object already exists it is found, reused, and + * the counter in the active object list incremented. If not found, a new + * session object is created and put also onto the active object list. + * + * We use the session field from sp, and we cache rsa->(n|e) in + * opdata_rsa_(n|e|d)_num, respectively. + */ +static CK_OBJECT_HANDLE +pk11_get_public_rsa_key(RSA* rsa, PK11_SESSION *sp) + { + CK_RV rv; + CK_OBJECT_HANDLE h_key = CK_INVALID_HANDLE; + CK_ULONG found; + CK_OBJECT_CLASS o_key = CKO_PUBLIC_KEY; + CK_KEY_TYPE k_type = CKK_RSA; + CK_ULONG ul_key_attr_count = 7; + CK_BBOOL rollback = CK_FALSE; + + CK_ATTRIBUTE a_key_template[] = + { + {CKA_CLASS, (void *) NULL, sizeof (CK_OBJECT_CLASS)}, + {CKA_KEY_TYPE, (void *) NULL, sizeof (CK_KEY_TYPE)}, + {CKA_TOKEN, &pk11_false, sizeof (pk11_false)}, + {CKA_ENCRYPT, &pk11_true, sizeof (pk11_true)}, + {CKA_VERIFY_RECOVER, &pk11_true, sizeof (pk11_true)}, + {CKA_MODULUS, (void *)NULL, 0}, + {CKA_PUBLIC_EXPONENT, (void *)NULL, 0} + }; + + int i; + + a_key_template[0].pValue = &o_key; + a_key_template[1].pValue = &k_type; + + a_key_template[5].ulValueLen = BN_num_bytes(rsa->n); + a_key_template[5].pValue = (CK_VOID_PTR)OPENSSL_malloc( + (size_t)a_key_template[5].ulValueLen); + if (a_key_template[5].pValue == NULL) + { + PK11err(PK11_F_GET_PUB_RSA_KEY, PK11_R_MALLOC_FAILURE); + goto malloc_err; + } + + BN_bn2bin(rsa->n, a_key_template[5].pValue); + + a_key_template[6].ulValueLen = BN_num_bytes(rsa->e); + a_key_template[6].pValue = (CK_VOID_PTR)OPENSSL_malloc( + (size_t)a_key_template[6].ulValueLen); + if (a_key_template[6].pValue == NULL) + { + PK11err(PK11_F_GET_PUB_RSA_KEY, PK11_R_MALLOC_FAILURE); + goto malloc_err; + } + + BN_bn2bin(rsa->e, a_key_template[6].pValue); + + /* see find_lock array definition for more info on object locking */ + LOCK_OBJSTORE(OP_RSA); + + rv = pFuncList->C_FindObjectsInit(sp->session, a_key_template, + ul_key_attr_count); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_GET_PUB_RSA_KEY, + PK11_R_FINDOBJECTSINIT, rv); + goto err; + } + + rv = pFuncList->C_FindObjects(sp->session, &h_key, 1, &found); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_GET_PUB_RSA_KEY, + PK11_R_FINDOBJECTS, rv); + goto err; + } + + rv = pFuncList->C_FindObjectsFinal(sp->session); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_GET_PUB_RSA_KEY, + PK11_R_FINDOBJECTSFINAL, rv); + goto err; + } + + if (found == 0) + { + rv = pFuncList->C_CreateObject(sp->session, + a_key_template, ul_key_attr_count, &h_key); + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_GET_PUB_RSA_KEY, + PK11_R_CREATEOBJECT, rv); + goto err; + } + } + + if ((sp->opdata_rsa_n_num = BN_dup(rsa->n)) == NULL) + { + PK11err(PK11_F_GET_PUB_RSA_KEY, PK11_R_MALLOC_FAILURE); + rollback = CK_TRUE; + goto err; + } + + if ((sp->opdata_rsa_e_num = BN_dup(rsa->e)) == NULL) + { + PK11err(PK11_F_GET_PUB_RSA_KEY, PK11_R_MALLOC_FAILURE); + BN_free(sp->opdata_rsa_n_num); + sp->opdata_rsa_n_num = NULL; + rollback = CK_TRUE; + goto err; + } + + /* LINTED: E_CONSTANT_CONDITION */ + KEY_HANDLE_REFHOLD(h_key, OP_RSA, CK_FALSE, rollback, err); + sp->opdata_rsa_pub = rsa; + +err: + if (rollback) + { + /* + * We do not care about the return value from C_DestroyObject() + * since we are doing rollback. + */ + if (found == 0) + (void) pFuncList->C_DestroyObject(sp->session, h_key); + h_key = CK_INVALID_HANDLE; + } + + UNLOCK_OBJSTORE(OP_RSA); + +malloc_err: + for (i = 5; i <= 6; i++) + { + if (a_key_template[i].pValue != NULL) + { + OPENSSL_free(a_key_template[i].pValue); + a_key_template[i].pValue = NULL; + } + } + + return (h_key); + } + +/* + * Function similar to pk11_get_public_rsa_key(). In addition to 'n' and 'e' + * components, it also caches 'd' if present. Note that if RSA keys by reference + * are used, 'd' is never extracted from the token in which case it would be + * NULL here. + */ +static CK_OBJECT_HANDLE +pk11_get_private_rsa_key(RSA* rsa, PK11_SESSION *sp) + { + CK_RV rv; + CK_OBJECT_HANDLE h_key = CK_INVALID_HANDLE; + int i; + CK_ULONG found; + CK_OBJECT_CLASS o_key = CKO_PRIVATE_KEY; + CK_KEY_TYPE k_type = CKK_RSA; + CK_ULONG ul_key_attr_count = 14; + CK_BBOOL rollback = CK_FALSE; + + /* + * Both CKA_TOKEN and CKA_SENSITIVE have to be CK_FALSE for session keys + */ + CK_ATTRIBUTE a_key_template[] = + { + {CKA_CLASS, (void *) NULL, sizeof (CK_OBJECT_CLASS)}, + {CKA_KEY_TYPE, (void *) NULL, sizeof (CK_KEY_TYPE)}, + {CKA_TOKEN, &pk11_false, sizeof (pk11_false)}, + {CKA_SENSITIVE, &pk11_false, sizeof (pk11_false)}, + {CKA_DECRYPT, &pk11_true, sizeof (pk11_true)}, + {CKA_SIGN, &pk11_true, sizeof (pk11_true)}, + {CKA_MODULUS, (void *)NULL, 0}, + {CKA_PUBLIC_EXPONENT, (void *)NULL, 0}, + {CKA_PRIVATE_EXPONENT, (void *)NULL, 0}, + {CKA_PRIME_1, (void *)NULL, 0}, + {CKA_PRIME_2, (void *)NULL, 0}, + {CKA_EXPONENT_1, (void *)NULL, 0}, + {CKA_EXPONENT_2, (void *)NULL, 0}, + {CKA_COEFFICIENT, (void *)NULL, 0}, + }; + + a_key_template[0].pValue = &o_key; + a_key_template[1].pValue = &k_type; + + /* Put the private key components into the template */ + if (init_template_value(rsa->n, &a_key_template[6].pValue, + &a_key_template[6].ulValueLen) == 0 || + init_template_value(rsa->e, &a_key_template[7].pValue, + &a_key_template[7].ulValueLen) == 0 || + init_template_value(rsa->d, &a_key_template[8].pValue, + &a_key_template[8].ulValueLen) == 0 || + init_template_value(rsa->p, &a_key_template[9].pValue, + &a_key_template[9].ulValueLen) == 0 || + init_template_value(rsa->q, &a_key_template[10].pValue, + &a_key_template[10].ulValueLen) == 0 || + init_template_value(rsa->dmp1, &a_key_template[11].pValue, + &a_key_template[11].ulValueLen) == 0 || + init_template_value(rsa->dmq1, &a_key_template[12].pValue, + &a_key_template[12].ulValueLen) == 0 || + init_template_value(rsa->iqmp, &a_key_template[13].pValue, + &a_key_template[13].ulValueLen) == 0) + { + PK11err(PK11_F_GET_PRIV_RSA_KEY, PK11_R_MALLOC_FAILURE); + goto malloc_err; + } + + /* see find_lock array definition for more info on object locking */ + LOCK_OBJSTORE(OP_RSA); + + /* + * We are getting the private key but the private 'd' component is NULL. + * That means this is key by reference RSA key. In that case, we can + * use only public components for searching for the private key handle. + */ + if (rsa->d == NULL) + { + ul_key_attr_count = 8; + /* + * We will perform the search in the token, not in the existing + * session keys. + */ + a_key_template[2].pValue = &pk11_true; + } + + rv = pFuncList->C_FindObjectsInit(sp->session, a_key_template, + ul_key_attr_count); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_GET_PRIV_RSA_KEY, + PK11_R_FINDOBJECTSINIT, rv); + goto err; + } + + rv = pFuncList->C_FindObjects(sp->session, &h_key, 1, &found); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_GET_PRIV_RSA_KEY, + PK11_R_FINDOBJECTS, rv); + goto err; + } + + rv = pFuncList->C_FindObjectsFinal(sp->session); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_GET_PRIV_RSA_KEY, + PK11_R_FINDOBJECTSFINAL, rv); + goto err; + } + + if (found == 0) + { + /* + * We have an RSA structure with 'n'/'e' components only so we + * tried to find the private key in the keystore. If it was + * really a token key we have a problem. Note that for other key + * types we just create a new session key using the private + * components from the RSA structure. + */ + if (rsa->d == NULL) + { + PK11err(PK11_F_GET_PRIV_RSA_KEY, + PK11_R_PRIV_KEY_NOT_FOUND); + goto err; + } + + rv = pFuncList->C_CreateObject(sp->session, + a_key_template, ul_key_attr_count, &h_key); + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_GET_PRIV_RSA_KEY, + PK11_R_CREATEOBJECT, rv); + goto err; + } + } + + /* + * When RSA keys by reference code is used, we never extract private + * components from the keystore. In that case 'd' was set to NULL and we + * expect the application to properly cope with that. It is documented + * in openssl(5). In general, if keys by reference are used we expect it + * to be used exclusively using the high level API and then there is no + * problem. If the application expects the private components to be read + * from the keystore then that is not a supported way of usage. + */ + if (rsa->d != NULL) + { + if ((sp->opdata_rsa_d_num = BN_dup(rsa->d)) == NULL) + { + PK11err(PK11_F_GET_PRIV_RSA_KEY, PK11_R_MALLOC_FAILURE); + rollback = CK_TRUE; + goto err; + } + } + else + sp->opdata_rsa_d_num = NULL; + + /* + * For the key by reference code, we need public components as well + * since 'd' component is always NULL. For that reason, we always cache + * 'n'/'e' components as well. + */ + if ((sp->opdata_rsa_n_num = BN_dup(rsa->n)) == NULL) + { + PK11err(PK11_F_GET_PUB_RSA_KEY, PK11_R_MALLOC_FAILURE); + sp->opdata_rsa_n_num = NULL; + rollback = CK_TRUE; + goto err; + } + if ((sp->opdata_rsa_e_num = BN_dup(rsa->e)) == NULL) + { + PK11err(PK11_F_GET_PUB_RSA_KEY, PK11_R_MALLOC_FAILURE); + BN_free(sp->opdata_rsa_n_num); + sp->opdata_rsa_n_num = NULL; + rollback = CK_TRUE; + goto err; + } + + /* LINTED: E_CONSTANT_CONDITION */ + KEY_HANDLE_REFHOLD(h_key, OP_RSA, CK_FALSE, rollback, err); + sp->opdata_rsa_priv = rsa; + +err: + if (rollback) + { + /* + * We do not care about the return value from C_DestroyObject() + * since we are doing rollback. + */ + if (found == 0) + (void) pFuncList->C_DestroyObject(sp->session, h_key); + h_key = CK_INVALID_HANDLE; + } + + UNLOCK_OBJSTORE(OP_RSA); + +malloc_err: + /* + * 6 to 13 entries in the key template are key components. + * They need to be freed upon exit or error. + */ + for (i = 6; i <= 13; i++) + { + if (a_key_template[i].pValue != NULL) + { + (void) memset(a_key_template[i].pValue, 0, + a_key_template[i].ulValueLen); + OPENSSL_free(a_key_template[i].pValue); + a_key_template[i].pValue = NULL; + } + } + + return (h_key); + } + +/* + * Check for cache miss. Objects are cleaned only if we have a full cache miss, + * meaning that it's a different RSA key pair. Return 1 for cache hit, 0 for + * cache miss. + */ +static int +pk11_check_new_rsa_key_pub(PK11_SESSION *sp, const RSA *rsa) + { + /* + * Provide protection against RSA structure reuse by making the + * check for cache hit stronger. Only public components of RSA + * key matter here so it is sufficient to compare them with values + * cached in PK11_SESSION structure. + * + * We must check the handle as well since with key by reference, public + * components 'n'/'e' are cached in private keys as well. That means we + * could have a cache hit in a private key when looking for a public + * key. That would not work, you cannot have one PKCS#11 object for + * both data signing and verifying. + */ + if (sp->opdata_rsa_pub == rsa && + BN_cmp(sp->opdata_rsa_n_num, rsa->n) == 0 && + BN_cmp(sp->opdata_rsa_e_num, rsa->e) == 0) + { + if (sp->opdata_rsa_pub_key != CK_INVALID_HANDLE) + return (1); + else + /* + * No public key object yet but we have the right RSA + * structure with potentially existing private key + * object. We can just create a public object and move + * on with this session structure. + */ + return (0); + } + + /* + * A different RSA key pair was using this session structure previously + * or it's an empty structure. Destroy what we can. + */ + (void) pk11_destroy_rsa_object_pub(sp, CK_TRUE); + (void) pk11_destroy_rsa_object_priv(sp, CK_TRUE); + return (0); + } + +/* + * Check for cache miss. Objects are cleaned only if we have a full cache miss, + * meaning that it's a different RSA key pair. Return 1 for cache hit, 0 for + * cache miss. + */ +static int +pk11_check_new_rsa_key_priv(PK11_SESSION *sp, const RSA *rsa) + { + /* + * Provide protection against RSA structure reuse by making the + * check for cache hit stronger. Comparing public exponent of RSA + * key with value cached in PK11_SESSION structure should + * be sufficient. Note that we want to compare the public component + * since with the keys by reference mechanism, private components are + * not in the RSA structure. Also, see pk11_check_new_rsa_key_pub() + * about why we compare the handle as well. + */ + if (sp->opdata_rsa_priv == rsa && + BN_cmp(sp->opdata_rsa_n_num, rsa->n) == 0 && + BN_cmp(sp->opdata_rsa_e_num, rsa->e) == 0) + { + if (sp->opdata_rsa_priv_key != CK_INVALID_HANDLE) + return (1); + else + /* + * No private key object yet but we have the right RSA + * structure with potentially existing public key + * object. We can just create a private object and move + * on with this session structure. + */ + return (0); + } + + /* + * A different RSA key pair was using this session structure previously + * or it's an empty structure. Destroy what we can. + */ + (void) pk11_destroy_rsa_object_priv(sp, CK_TRUE); + (void) pk11_destroy_rsa_object_pub(sp, CK_TRUE); + return (0); + } +#endif + +#ifndef OPENSSL_NO_DSA +/* The DSA function implementation */ +/* ARGSUSED */ +static int pk11_DSA_init(DSA *dsa) + { + return (1); + } + +/* ARGSUSED */ +static int pk11_DSA_finish(DSA *dsa) + { + return (1); + } + + +static DSA_SIG * +pk11_dsa_do_sign(const unsigned char *dgst, int dlen, DSA *dsa) + { + BIGNUM *r = NULL, *s = NULL; + int i; + DSA_SIG *dsa_sig = NULL; + + CK_RV rv; + CK_MECHANISM Mechanism_dsa = {CKM_DSA, NULL, 0}; + CK_MECHANISM *p_mech = &Mechanism_dsa; + CK_OBJECT_HANDLE h_priv_key; + + /* + * The signature is the concatenation of r and s, + * each is 20 bytes long + */ + unsigned char sigret[DSA_SIGNATURE_LEN]; + unsigned long siglen = DSA_SIGNATURE_LEN; + unsigned int siglen2 = DSA_SIGNATURE_LEN / 2; + + PK11_SESSION *sp = NULL; + + if ((dsa->p == NULL) || (dsa->q == NULL) || (dsa->g == NULL)) + { + PK11err(PK11_F_DSA_SIGN, PK11_R_MISSING_KEY_COMPONENT); + goto ret; + } + + i = BN_num_bytes(dsa->q); /* should be 20 */ + if (dlen > i) + { + PK11err(PK11_F_DSA_SIGN, PK11_R_INVALID_SIGNATURE_LENGTH); + goto ret; + } + + if ((sp = pk11_get_session(OP_DSA)) == NULL) + goto ret; + + (void) check_new_dsa_key_priv(sp, dsa); + + h_priv_key = sp->opdata_dsa_priv_key; + if (h_priv_key == CK_INVALID_HANDLE) + h_priv_key = sp->opdata_dsa_priv_key = + pk11_get_private_dsa_key((DSA *)dsa, + &sp->opdata_dsa_priv, + &sp->opdata_dsa_priv_num, sp->session); + + if (h_priv_key != CK_INVALID_HANDLE) + { + rv = pFuncList->C_SignInit(sp->session, p_mech, h_priv_key); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_DSA_SIGN, PK11_R_SIGNINIT, rv); + goto ret; + } + + (void) memset(sigret, 0, siglen); + rv = pFuncList->C_Sign(sp->session, + (unsigned char *) dgst, dlen, sigret, + (CK_ULONG_PTR) &siglen); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_DSA_SIGN, PK11_R_SIGN, rv); + goto ret; + } + } + + + if ((s = BN_new()) == NULL) + { + PK11err(PK11_F_DSA_SIGN, PK11_R_MALLOC_FAILURE); + goto ret; + } + + if ((r = BN_new()) == NULL) + { + PK11err(PK11_F_DSA_SIGN, PK11_R_MALLOC_FAILURE); + goto ret; + } + + if ((dsa_sig = DSA_SIG_new()) == NULL) + { + PK11err(PK11_F_DSA_SIGN, PK11_R_MALLOC_FAILURE); + goto ret; + } + + if (BN_bin2bn(sigret, siglen2, r) == NULL || + BN_bin2bn(&sigret[siglen2], siglen2, s) == NULL) + { + PK11err(PK11_F_DSA_SIGN, PK11_R_MALLOC_FAILURE); + goto ret; + } + + dsa_sig->r = r; + dsa_sig->s = s; + +ret: + if (dsa_sig == NULL) + { + if (r != NULL) + BN_free(r); + if (s != NULL) + BN_free(s); + } + + pk11_return_session(sp, OP_DSA); + return (dsa_sig); + } + +static int +pk11_dsa_do_verify(const unsigned char *dgst, int dlen, DSA_SIG *sig, + DSA *dsa) + { + int i; + CK_RV rv; + int retval = 0; + CK_MECHANISM Mechanism_dsa = {CKM_DSA, NULL, 0}; + CK_MECHANISM *p_mech = &Mechanism_dsa; + CK_OBJECT_HANDLE h_pub_key; + + unsigned char sigbuf[DSA_SIGNATURE_LEN]; + unsigned long siglen = DSA_SIGNATURE_LEN; + unsigned long siglen2 = DSA_SIGNATURE_LEN/2; + + PK11_SESSION *sp = NULL; + + if (BN_is_zero(sig->r) || sig->r->neg || BN_ucmp(sig->r, dsa->q) >= 0) + { + PK11err(PK11_F_DSA_VERIFY, + PK11_R_INVALID_DSA_SIGNATURE_R); + goto ret; + } + + if (BN_is_zero(sig->s) || sig->s->neg || BN_ucmp(sig->s, dsa->q) >= 0) + { + PK11err(PK11_F_DSA_VERIFY, + PK11_R_INVALID_DSA_SIGNATURE_S); + goto ret; + } + + i = BN_num_bytes(dsa->q); /* should be 20 */ + + if (dlen > i) + { + PK11err(PK11_F_DSA_VERIFY, + PK11_R_INVALID_SIGNATURE_LENGTH); + goto ret; + } + + if ((sp = pk11_get_session(OP_DSA)) == NULL) + goto ret; + + (void) check_new_dsa_key_pub(sp, dsa); + + h_pub_key = sp->opdata_dsa_pub_key; + if (h_pub_key == CK_INVALID_HANDLE) + h_pub_key = sp->opdata_dsa_pub_key = + pk11_get_public_dsa_key((DSA *)dsa, &sp->opdata_dsa_pub, + &sp->opdata_dsa_pub_num, sp->session); + + if (h_pub_key != CK_INVALID_HANDLE) + { + rv = pFuncList->C_VerifyInit(sp->session, p_mech, + h_pub_key); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_DSA_VERIFY, PK11_R_VERIFYINIT, + rv); + goto ret; + } + + /* + * The representation of each of the two big numbers could + * be shorter than DSA_SIGNATURE_LEN/2 bytes so we need + * to act accordingly and shift if necessary. + */ + (void) memset(sigbuf, 0, siglen); + BN_bn2bin(sig->r, sigbuf + siglen2 - BN_num_bytes(sig->r)); + BN_bn2bin(sig->s, &sigbuf[siglen2] + siglen2 - + BN_num_bytes(sig->s)); + + rv = pFuncList->C_Verify(sp->session, + (unsigned char *) dgst, dlen, sigbuf, (CK_ULONG)siglen); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_DSA_VERIFY, PK11_R_VERIFY, rv); + goto ret; + } + } + + retval = 1; +ret: + + pk11_return_session(sp, OP_DSA); + return (retval); + } + + +/* + * Create a public key object in a session from a given dsa structure. + * The *dsa_pub_num pointer is non-NULL for DSA public keys. + */ +static CK_OBJECT_HANDLE pk11_get_public_dsa_key(DSA* dsa, + DSA **key_ptr, BIGNUM **dsa_pub_num, CK_SESSION_HANDLE session) + { + CK_RV rv; + CK_OBJECT_CLASS o_key = CKO_PUBLIC_KEY; + CK_OBJECT_HANDLE h_key = CK_INVALID_HANDLE; + CK_ULONG found; + CK_KEY_TYPE k_type = CKK_DSA; + CK_ULONG ul_key_attr_count = 8; + CK_BBOOL rollback = CK_FALSE; + int i; + + CK_ATTRIBUTE a_key_template[] = + { + {CKA_CLASS, (void *) NULL, sizeof (CK_OBJECT_CLASS)}, + {CKA_KEY_TYPE, (void *) NULL, sizeof (CK_KEY_TYPE)}, + {CKA_TOKEN, &pk11_false, sizeof (pk11_false)}, + {CKA_VERIFY, &pk11_true, sizeof (pk11_true)}, + {CKA_PRIME, (void *)NULL, 0}, /* p */ + {CKA_SUBPRIME, (void *)NULL, 0}, /* q */ + {CKA_BASE, (void *)NULL, 0}, /* g */ + {CKA_VALUE, (void *)NULL, 0} /* pub_key - y */ + }; + + a_key_template[0].pValue = &o_key; + a_key_template[1].pValue = &k_type; + + if (init_template_value(dsa->p, &a_key_template[4].pValue, + &a_key_template[4].ulValueLen) == 0 || + init_template_value(dsa->q, &a_key_template[5].pValue, + &a_key_template[5].ulValueLen) == 0 || + init_template_value(dsa->g, &a_key_template[6].pValue, + &a_key_template[6].ulValueLen) == 0 || + init_template_value(dsa->pub_key, &a_key_template[7].pValue, + &a_key_template[7].ulValueLen) == 0) + { + PK11err(PK11_F_GET_PUB_DSA_KEY, PK11_R_MALLOC_FAILURE); + goto malloc_err; + } + + /* see find_lock array definition for more info on object locking */ + LOCK_OBJSTORE(OP_DSA); + rv = pFuncList->C_FindObjectsInit(session, a_key_template, + ul_key_attr_count); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_GET_PUB_DSA_KEY, + PK11_R_FINDOBJECTSINIT, rv); + goto err; + } + + rv = pFuncList->C_FindObjects(session, &h_key, 1, &found); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_GET_PUB_DSA_KEY, + PK11_R_FINDOBJECTS, rv); + goto err; + } + + rv = pFuncList->C_FindObjectsFinal(session); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_GET_PUB_DSA_KEY, + PK11_R_FINDOBJECTSFINAL, rv); + goto err; + } + + if (found == 0) + { + rv = pFuncList->C_CreateObject(session, + a_key_template, ul_key_attr_count, &h_key); + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_GET_PUB_DSA_KEY, + PK11_R_CREATEOBJECT, rv); + goto err; + } + } + + if (dsa_pub_num != NULL) + if ((*dsa_pub_num = BN_dup(dsa->pub_key)) == NULL) + { + PK11err(PK11_F_GET_PUB_DSA_KEY, PK11_R_MALLOC_FAILURE); + rollback = CK_TRUE; + goto err; + } + + /* LINTED: E_CONSTANT_CONDITION */ + KEY_HANDLE_REFHOLD(h_key, OP_DSA, CK_FALSE, rollback, err); + if (key_ptr != NULL) + *key_ptr = dsa; + +err: + if (rollback) + { + /* + * We do not care about the return value from C_DestroyObject() + * since we are doing rollback. + */ + if (found == 0) + (void) pFuncList->C_DestroyObject(session, h_key); + h_key = CK_INVALID_HANDLE; + } + + UNLOCK_OBJSTORE(OP_DSA); + +malloc_err: + for (i = 4; i <= 7; i++) + { + if (a_key_template[i].pValue != NULL) + { + OPENSSL_free(a_key_template[i].pValue); + a_key_template[i].pValue = NULL; + } + } + + return (h_key); + } + +/* + * Create a private key object in the session from a given dsa structure + * The *dsa_priv_num pointer is non-NULL for DSA private keys. + */ +static CK_OBJECT_HANDLE pk11_get_private_dsa_key(DSA* dsa, + DSA **key_ptr, BIGNUM **dsa_priv_num, CK_SESSION_HANDLE session) + { + CK_RV rv; + CK_OBJECT_HANDLE h_key = CK_INVALID_HANDLE; + CK_OBJECT_CLASS o_key = CKO_PRIVATE_KEY; + int i; + CK_ULONG found; + CK_KEY_TYPE k_type = CKK_DSA; + CK_ULONG ul_key_attr_count = 9; + CK_BBOOL rollback = CK_FALSE; + + /* + * Both CKA_TOKEN and CKA_SENSITIVE have to be CK_FALSE for session keys + */ + CK_ATTRIBUTE a_key_template[] = + { + {CKA_CLASS, (void *) NULL, sizeof (CK_OBJECT_CLASS)}, + {CKA_KEY_TYPE, (void *) NULL, sizeof (CK_KEY_TYPE)}, + {CKA_TOKEN, &pk11_false, sizeof (pk11_false)}, + {CKA_SENSITIVE, &pk11_false, sizeof (pk11_false)}, + {CKA_SIGN, &pk11_true, sizeof (pk11_true)}, + {CKA_PRIME, (void *)NULL, 0}, /* p */ + {CKA_SUBPRIME, (void *)NULL, 0}, /* q */ + {CKA_BASE, (void *)NULL, 0}, /* g */ + {CKA_VALUE, (void *)NULL, 0} /* priv_key - x */ + }; + + a_key_template[0].pValue = &o_key; + a_key_template[1].pValue = &k_type; + + /* Put the private key components into the template */ + if (init_template_value(dsa->p, &a_key_template[5].pValue, + &a_key_template[5].ulValueLen) == 0 || + init_template_value(dsa->q, &a_key_template[6].pValue, + &a_key_template[6].ulValueLen) == 0 || + init_template_value(dsa->g, &a_key_template[7].pValue, + &a_key_template[7].ulValueLen) == 0 || + init_template_value(dsa->priv_key, &a_key_template[8].pValue, + &a_key_template[8].ulValueLen) == 0) + { + PK11err(PK11_F_GET_PRIV_DSA_KEY, PK11_R_MALLOC_FAILURE); + goto malloc_err; + } + + /* see find_lock array definition for more info on object locking */ + LOCK_OBJSTORE(OP_DSA); + rv = pFuncList->C_FindObjectsInit(session, a_key_template, + ul_key_attr_count); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_GET_PRIV_DSA_KEY, + PK11_R_FINDOBJECTSINIT, rv); + goto err; + } + + rv = pFuncList->C_FindObjects(session, &h_key, 1, &found); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_GET_PRIV_DSA_KEY, + PK11_R_FINDOBJECTS, rv); + goto err; + } + + rv = pFuncList->C_FindObjectsFinal(session); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_GET_PRIV_DSA_KEY, + PK11_R_FINDOBJECTSFINAL, rv); + goto err; + } + + if (found == 0) + { + rv = pFuncList->C_CreateObject(session, + a_key_template, ul_key_attr_count, &h_key); + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_GET_PRIV_DSA_KEY, + PK11_R_CREATEOBJECT, rv); + goto err; + } + } + + if (dsa_priv_num != NULL) + if ((*dsa_priv_num = BN_dup(dsa->priv_key)) == NULL) + { + PK11err(PK11_F_GET_PRIV_DSA_KEY, PK11_R_MALLOC_FAILURE); + rollback = CK_TRUE; + goto err; + } + + /* LINTED: E_CONSTANT_CONDITION */ + KEY_HANDLE_REFHOLD(h_key, OP_DSA, CK_FALSE, rollback, err); + if (key_ptr != NULL) + *key_ptr = dsa; + +err: + if (rollback) + { + /* + * We do not care about the return value from C_DestroyObject() + * since we are doing rollback. + */ + if (found == 0) + (void) pFuncList->C_DestroyObject(session, h_key); + h_key = CK_INVALID_HANDLE; + } + + UNLOCK_OBJSTORE(OP_DSA); + +malloc_err: + /* + * 5 to 8 entries in the key template are key components. + * They need to be freed apon exit or error. + */ + for (i = 5; i <= 8; i++) + { + if (a_key_template[i].pValue != NULL) + { + (void) memset(a_key_template[i].pValue, 0, + a_key_template[i].ulValueLen); + OPENSSL_free(a_key_template[i].pValue); + a_key_template[i].pValue = NULL; + } + } + + return (h_key); + } + +/* + * Check for cache miss and clean the object pointer and handle + * in such case. Return 1 for cache hit, 0 for cache miss. + */ +static int check_new_dsa_key_pub(PK11_SESSION *sp, DSA *dsa) + { + /* + * Provide protection against DSA structure reuse by making the + * check for cache hit stronger. Only public key component of DSA + * key matters here so it is sufficient to compare it with value + * cached in PK11_SESSION structure. + */ + if ((sp->opdata_dsa_pub != dsa) || + (BN_cmp(sp->opdata_dsa_pub_num, dsa->pub_key) != 0)) + { + /* + * We do not check the return value because even in case of + * failure the sp structure will have both key pointer + * and object handle cleaned and pk11_destroy_object() + * reports the failure to the OpenSSL error message buffer. + */ + (void) pk11_destroy_dsa_object_pub(sp, CK_TRUE); + return (0); + } + return (1); + } + +/* + * Check for cache miss and clean the object pointer and handle + * in such case. Return 1 for cache hit, 0 for cache miss. + */ +static int check_new_dsa_key_priv(PK11_SESSION *sp, DSA *dsa) + { + /* + * Provide protection against DSA structure reuse by making the + * check for cache hit stronger. Only private key component of DSA + * key matters here so it is sufficient to compare it with value + * cached in PK11_SESSION structure. + */ + if ((sp->opdata_dsa_priv != dsa) || + (BN_cmp(sp->opdata_dsa_priv_num, dsa->priv_key) != 0)) + { + /* + * We do not check the return value because even in case of + * failure the sp structure will have both key pointer + * and object handle cleaned and pk11_destroy_object() + * reports the failure to the OpenSSL error message buffer. + */ + (void) pk11_destroy_dsa_object_priv(sp, CK_TRUE); + return (0); + } + return (1); + } +#endif + + +#ifndef OPENSSL_NO_DH +/* The DH function implementation */ +/* ARGSUSED */ +static int pk11_DH_init(DH *dh) + { + return (1); + } + +/* ARGSUSED */ +static int pk11_DH_finish(DH *dh) + { + return (1); + } + +/* + * Generate DH key-pair. + * + * Warning: Unlike OpenSSL's DH_generate_key(3) we ignore dh->priv_key + * and override it even if it is set. OpenSSL does not touch dh->priv_key + * if set and just computes dh->pub_key. It looks like PKCS#11 standard + * is not capable of providing this functionality. This could be a problem + * for applications relying on OpenSSL's semantics. + */ +static int pk11_DH_generate_key(DH *dh) + { + CK_ULONG i; + CK_RV rv, rv1; + int reuse_mem_len = 0, ret = 0; + PK11_SESSION *sp = NULL; + CK_BYTE_PTR reuse_mem; + + CK_MECHANISM mechanism = {CKM_DH_PKCS_KEY_PAIR_GEN, NULL_PTR, 0}; + CK_OBJECT_HANDLE h_pub_key = CK_INVALID_HANDLE; + CK_OBJECT_HANDLE h_priv_key = CK_INVALID_HANDLE; + + CK_ULONG ul_pub_key_attr_count = 3; + CK_ATTRIBUTE pub_key_template[] = + { + {CKA_PRIVATE, &pk11_false, sizeof (pk11_false)}, + {CKA_PRIME, (void *)NULL, 0}, + {CKA_BASE, (void *)NULL, 0} + }; + + CK_ULONG ul_priv_key_attr_count = 3; + CK_ATTRIBUTE priv_key_template[] = + { + {CKA_PRIVATE, &pk11_false, sizeof (pk11_false)}, + {CKA_SENSITIVE, &pk11_false, sizeof (pk11_false)}, + {CKA_DERIVE, &pk11_true, sizeof (pk11_true)} + }; + + CK_ULONG pub_key_attr_result_count = 1; + CK_ATTRIBUTE pub_key_result[] = + { + {CKA_VALUE, (void *)NULL, 0} + }; + + CK_ULONG priv_key_attr_result_count = 1; + CK_ATTRIBUTE priv_key_result[] = + { + {CKA_VALUE, (void *)NULL, 0} + }; + + pub_key_template[1].ulValueLen = BN_num_bytes(dh->p); + if (pub_key_template[1].ulValueLen > 0) + { + /* + * We must not increase ulValueLen by DH_BUF_RESERVE since that + * could cause the same rounding problem. See definition of + * DH_BUF_RESERVE above. + */ + pub_key_template[1].pValue = + OPENSSL_malloc(pub_key_template[1].ulValueLen + + DH_BUF_RESERVE); + if (pub_key_template[1].pValue == NULL) + { + PK11err(PK11_F_DH_GEN_KEY, PK11_R_MALLOC_FAILURE); + goto err; + } + + i = BN_bn2bin(dh->p, pub_key_template[1].pValue); + } + else + goto err; + + pub_key_template[2].ulValueLen = BN_num_bytes(dh->g); + if (pub_key_template[2].ulValueLen > 0) + { + pub_key_template[2].pValue = + OPENSSL_malloc(pub_key_template[2].ulValueLen + + DH_BUF_RESERVE); + if (pub_key_template[2].pValue == NULL) + { + PK11err(PK11_F_DH_GEN_KEY, PK11_R_MALLOC_FAILURE); + goto err; + } + + i = BN_bn2bin(dh->g, pub_key_template[2].pValue); + } + else + goto err; + + /* + * Note: we are only using PK11_SESSION structure for getting + * a session handle. The objects created in this function are + * destroyed before return and thus not cached. + */ + if ((sp = pk11_get_session(OP_DH)) == NULL) + goto err; + + rv = pFuncList->C_GenerateKeyPair(sp->session, + &mechanism, + pub_key_template, + ul_pub_key_attr_count, + priv_key_template, + ul_priv_key_attr_count, + &h_pub_key, + &h_priv_key); + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_DH_GEN_KEY, PK11_R_GEN_KEY, rv); + goto err; + } + + /* + * Reuse the larger memory allocated. We know the larger memory + * should be sufficient for reuse. + */ + if (pub_key_template[1].ulValueLen > pub_key_template[2].ulValueLen) + { + reuse_mem = pub_key_template[1].pValue; + reuse_mem_len = pub_key_template[1].ulValueLen + DH_BUF_RESERVE; + } + else + { + reuse_mem = pub_key_template[2].pValue; + reuse_mem_len = pub_key_template[2].ulValueLen + DH_BUF_RESERVE; + } + + rv = pFuncList->C_GetAttributeValue(sp->session, h_pub_key, + pub_key_result, pub_key_attr_result_count); + rv1 = pFuncList->C_GetAttributeValue(sp->session, h_priv_key, + priv_key_result, priv_key_attr_result_count); + + if (rv != CKR_OK || rv1 != CKR_OK) + { + rv = (rv != CKR_OK) ? rv : rv1; + PK11err_add_data(PK11_F_DH_GEN_KEY, + PK11_R_GETATTRIBUTVALUE, rv); + goto err; + } + + if (((CK_LONG) pub_key_result[0].ulValueLen) <= 0 || + ((CK_LONG) priv_key_result[0].ulValueLen) <= 0) + { + PK11err(PK11_F_DH_GEN_KEY, PK11_R_GETATTRIBUTVALUE); + goto err; + } + + /* Reuse the memory allocated */ + pub_key_result[0].pValue = reuse_mem; + pub_key_result[0].ulValueLen = reuse_mem_len; + + rv = pFuncList->C_GetAttributeValue(sp->session, h_pub_key, + pub_key_result, pub_key_attr_result_count); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_DH_GEN_KEY, + PK11_R_GETATTRIBUTVALUE, rv); + goto err; + } + + if (pub_key_result[0].type == CKA_VALUE) + { + if (dh->pub_key == NULL) + if ((dh->pub_key = BN_new()) == NULL) + { + PK11err(PK11_F_DH_GEN_KEY, + PK11_R_MALLOC_FAILURE); + goto err; + } + dh->pub_key = BN_bin2bn(pub_key_result[0].pValue, + pub_key_result[0].ulValueLen, dh->pub_key); + if (dh->pub_key == NULL) + { + PK11err(PK11_F_DH_GEN_KEY, PK11_R_MALLOC_FAILURE); + goto err; + } + } + + /* Reuse the memory allocated */ + priv_key_result[0].pValue = reuse_mem; + priv_key_result[0].ulValueLen = reuse_mem_len; + + rv = pFuncList->C_GetAttributeValue(sp->session, h_priv_key, + priv_key_result, priv_key_attr_result_count); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_DH_GEN_KEY, + PK11_R_GETATTRIBUTVALUE, rv); + goto err; + } + + if (priv_key_result[0].type == CKA_VALUE) + { + if (dh->priv_key == NULL) + if ((dh->priv_key = BN_new()) == NULL) + { + PK11err(PK11_F_DH_GEN_KEY, + PK11_R_MALLOC_FAILURE); + goto err; + } + dh->priv_key = BN_bin2bn(priv_key_result[0].pValue, + priv_key_result[0].ulValueLen, dh->priv_key); + if (dh->priv_key == NULL) + { + PK11err(PK11_F_DH_GEN_KEY, PK11_R_MALLOC_FAILURE); + goto err; + } + } + + ret = 1; + +err: + + if (h_pub_key != CK_INVALID_HANDLE) + { + rv = pFuncList->C_DestroyObject(sp->session, h_pub_key); + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_DH_GEN_KEY, + PK11_R_DESTROYOBJECT, rv); + } + } + + if (h_priv_key != CK_INVALID_HANDLE) + { + rv = pFuncList->C_DestroyObject(sp->session, h_priv_key); + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_DH_GEN_KEY, + PK11_R_DESTROYOBJECT, rv); + } + } + + for (i = 1; i <= 2; i++) + { + if (pub_key_template[i].pValue != NULL) + { + OPENSSL_free(pub_key_template[i].pValue); + pub_key_template[i].pValue = NULL; + } + } + + pk11_return_session(sp, OP_DH); + return (ret); + } + +static int pk11_DH_compute_key(unsigned char *key, const BIGNUM *pub_key, + DH *dh) + { + int i; + CK_MECHANISM mechanism = {CKM_DH_PKCS_DERIVE, NULL_PTR, 0}; + CK_OBJECT_CLASS key_class = CKO_SECRET_KEY; + CK_KEY_TYPE key_type = CKK_GENERIC_SECRET; + CK_OBJECT_HANDLE h_derived_key = CK_INVALID_HANDLE; + CK_OBJECT_HANDLE h_key = CK_INVALID_HANDLE; + + CK_ULONG ul_priv_key_attr_count = 2; + CK_ATTRIBUTE priv_key_template[] = + { + {CKA_CLASS, (void*) NULL, sizeof (key_class)}, + {CKA_KEY_TYPE, (void*) NULL, sizeof (key_type)}, + }; + + CK_ULONG priv_key_attr_result_count = 1; + CK_ATTRIBUTE priv_key_result[] = + { + {CKA_VALUE, (void *)NULL, 0} + }; + + CK_RV rv; + int ret = -1; + PK11_SESSION *sp = NULL; + + if (dh->priv_key == NULL) + goto err; + + priv_key_template[0].pValue = &key_class; + priv_key_template[1].pValue = &key_type; + + if ((sp = pk11_get_session(OP_DH)) == NULL) + goto err; + + mechanism.ulParameterLen = BN_num_bytes(pub_key); + mechanism.pParameter = OPENSSL_malloc(mechanism.ulParameterLen); + if (mechanism.pParameter == NULL) + { + PK11err(PK11_F_DH_COMP_KEY, PK11_R_MALLOC_FAILURE); + goto err; + } + BN_bn2bin(pub_key, mechanism.pParameter); + + (void) check_new_dh_key(sp, dh); + + h_key = sp->opdata_dh_key; + if (h_key == CK_INVALID_HANDLE) + h_key = sp->opdata_dh_key = + pk11_get_dh_key((DH*) dh, &sp->opdata_dh, + &sp->opdata_dh_priv_num, sp->session); + + if (h_key == CK_INVALID_HANDLE) + { + PK11err(PK11_F_DH_COMP_KEY, PK11_R_CREATEOBJECT); + goto err; + } + + rv = pFuncList->C_DeriveKey(sp->session, + &mechanism, + h_key, + priv_key_template, + ul_priv_key_attr_count, + &h_derived_key); + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_DH_COMP_KEY, PK11_R_DERIVEKEY, rv); + goto err; + } + + rv = pFuncList->C_GetAttributeValue(sp->session, h_derived_key, + priv_key_result, priv_key_attr_result_count); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_DH_COMP_KEY, PK11_R_GETATTRIBUTVALUE, + rv); + goto err; + } + + if (((CK_LONG) priv_key_result[0].ulValueLen) <= 0) + { + PK11err(PK11_F_DH_COMP_KEY, PK11_R_GETATTRIBUTVALUE); + goto err; + } + priv_key_result[0].pValue = + OPENSSL_malloc(priv_key_result[0].ulValueLen); + if (!priv_key_result[0].pValue) + { + PK11err(PK11_F_DH_COMP_KEY, PK11_R_MALLOC_FAILURE); + goto err; + } + + rv = pFuncList->C_GetAttributeValue(sp->session, h_derived_key, + priv_key_result, priv_key_attr_result_count); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_DH_COMP_KEY, PK11_R_GETATTRIBUTVALUE, + rv); + goto err; + } + + /* + * OpenSSL allocates the output buffer 'key' which is the same + * length of the public key. It is long enough for the derived key + */ + if (priv_key_result[0].type == CKA_VALUE) + { + /* + * CKM_DH_PKCS_DERIVE mechanism is not supposed to strip + * leading zeros from a computed shared secret. However, + * OpenSSL always did it so we must do the same here. The + * vagueness of the spec regarding leading zero bytes was + * finally cleared with TLS 1.1 (RFC 4346) saying that leading + * zeros are stripped before the computed data is used as the + * pre-master secret. + */ + for (i = 0; i < priv_key_result[0].ulValueLen; ++i) + { + if (((char *)priv_key_result[0].pValue)[i] != 0) + break; + } + + (void) memcpy(key, ((char *)priv_key_result[0].pValue) + i, + priv_key_result[0].ulValueLen - i); + ret = priv_key_result[0].ulValueLen - i; + } + +err: + + if (h_derived_key != CK_INVALID_HANDLE) + { + rv = pFuncList->C_DestroyObject(sp->session, h_derived_key); + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_DH_COMP_KEY, + PK11_R_DESTROYOBJECT, rv); + } + } + if (priv_key_result[0].pValue) + { + OPENSSL_free(priv_key_result[0].pValue); + priv_key_result[0].pValue = NULL; + } + + if (mechanism.pParameter) + { + OPENSSL_free(mechanism.pParameter); + mechanism.pParameter = NULL; + } + + pk11_return_session(sp, OP_DH); + return (ret); + } + + +static CK_OBJECT_HANDLE pk11_get_dh_key(DH* dh, + DH **key_ptr, BIGNUM **dh_priv_num, CK_SESSION_HANDLE session) + { + CK_RV rv; + CK_OBJECT_HANDLE h_key = CK_INVALID_HANDLE; + CK_OBJECT_CLASS class = CKO_PRIVATE_KEY; + CK_KEY_TYPE key_type = CKK_DH; + CK_ULONG found; + CK_BBOOL rollback = CK_FALSE; + int i; + + CK_ULONG ul_key_attr_count = 7; + CK_ATTRIBUTE key_template[] = + { + {CKA_CLASS, (void*) NULL, sizeof (class)}, + {CKA_KEY_TYPE, (void*) NULL, sizeof (key_type)}, + {CKA_DERIVE, &pk11_true, sizeof (pk11_true)}, + {CKA_PRIVATE, &pk11_false, sizeof (pk11_false)}, + {CKA_PRIME, (void *) NULL, 0}, + {CKA_BASE, (void *) NULL, 0}, + {CKA_VALUE, (void *) NULL, 0}, + }; + + key_template[0].pValue = &class; + key_template[1].pValue = &key_type; + + key_template[4].ulValueLen = BN_num_bytes(dh->p); + key_template[4].pValue = (CK_VOID_PTR)OPENSSL_malloc( + (size_t)key_template[4].ulValueLen); + if (key_template[4].pValue == NULL) + { + PK11err(PK11_F_GET_DH_KEY, PK11_R_MALLOC_FAILURE); + goto malloc_err; + } + + BN_bn2bin(dh->p, key_template[4].pValue); + + key_template[5].ulValueLen = BN_num_bytes(dh->g); + key_template[5].pValue = (CK_VOID_PTR)OPENSSL_malloc( + (size_t)key_template[5].ulValueLen); + if (key_template[5].pValue == NULL) + { + PK11err(PK11_F_GET_DH_KEY, PK11_R_MALLOC_FAILURE); + goto malloc_err; + } + + BN_bn2bin(dh->g, key_template[5].pValue); + + key_template[6].ulValueLen = BN_num_bytes(dh->priv_key); + key_template[6].pValue = (CK_VOID_PTR)OPENSSL_malloc( + (size_t)key_template[6].ulValueLen); + if (key_template[6].pValue == NULL) + { + PK11err(PK11_F_GET_DH_KEY, PK11_R_MALLOC_FAILURE); + goto malloc_err; + } + + BN_bn2bin(dh->priv_key, key_template[6].pValue); + + /* see find_lock array definition for more info on object locking */ + LOCK_OBJSTORE(OP_DH); + rv = pFuncList->C_FindObjectsInit(session, key_template, + ul_key_attr_count); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_GET_DH_KEY, PK11_R_FINDOBJECTSINIT, rv); + goto err; + } + + rv = pFuncList->C_FindObjects(session, &h_key, 1, &found); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_GET_DH_KEY, PK11_R_FINDOBJECTS, rv); + goto err; + } + + rv = pFuncList->C_FindObjectsFinal(session); + + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_GET_DH_KEY, PK11_R_FINDOBJECTSFINAL, + rv); + goto err; + } + + if (found == 0) + { + rv = pFuncList->C_CreateObject(session, + key_template, ul_key_attr_count, &h_key); + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_GET_DH_KEY, PK11_R_CREATEOBJECT, + rv); + goto err; + } + } + + if (dh_priv_num != NULL) + if ((*dh_priv_num = BN_dup(dh->priv_key)) == NULL) + { + PK11err(PK11_F_GET_DH_KEY, PK11_R_MALLOC_FAILURE); + rollback = CK_TRUE; + goto err; + } + + /* LINTED: E_CONSTANT_CONDITION */ + KEY_HANDLE_REFHOLD(h_key, OP_DH, CK_FALSE, rollback, err); + if (key_ptr != NULL) + *key_ptr = dh; + +err: + if (rollback) + { + /* + * We do not care about the return value from C_DestroyObject() + * since we are doing rollback. + */ + if (found == 0) + (void) pFuncList->C_DestroyObject(session, h_key); + h_key = CK_INVALID_HANDLE; + } + + UNLOCK_OBJSTORE(OP_DH); + +malloc_err: + for (i = 4; i <= 6; i++) + { + if (key_template[i].pValue != NULL) + { + OPENSSL_free(key_template[i].pValue); + key_template[i].pValue = NULL; + } + } + + return (h_key); + } + +/* + * Check for cache miss and clean the object pointer and handle + * in such case. Return 1 for cache hit, 0 for cache miss. + * + * Note: we rely on pk11_destroy_dh_key_objects() to set sp->opdata_dh + * to CK_INVALID_HANDLE even when it fails to destroy the object. + */ +static int check_new_dh_key(PK11_SESSION *sp, DH *dh) + { + /* + * Provide protection against DH structure reuse by making the + * check for cache hit stronger. Private key component of DH key + * is unique so it is sufficient to compare it with value cached + * in PK11_SESSION structure. + */ + if ((sp->opdata_dh != dh) || + (BN_cmp(sp->opdata_dh_priv_num, dh->priv_key) != 0)) + { + /* + * We do not check the return value because even in case of + * failure the sp structure will have both key pointer + * and object handle cleaned and pk11_destroy_object() + * reports the failure to the OpenSSL error message buffer. + */ + (void) pk11_destroy_dh_object(sp, CK_TRUE); + return (0); + } + return (1); + } +#endif + +/* + * Local function to simplify key template population + * Return 0 -- error, 1 -- no error + */ +static int +init_template_value(BIGNUM *bn, CK_VOID_PTR *p_value, + CK_ULONG *ul_value_len) + { + CK_ULONG len; + + /* + * This function can be used on non-initialized BIGNUMs. It is easier to + * check that here than individually in the callers. + */ + if (bn != NULL) + len = BN_num_bytes(bn); + + if (bn == NULL || len == 0) + return (1); + + *ul_value_len = len; + *p_value = (CK_VOID_PTR)OPENSSL_malloc((size_t)*ul_value_len); + if (*p_value == NULL) + return (0); + + BN_bn2bin(bn, *p_value); + + return (1); + } + +static void +attr_to_BN(CK_ATTRIBUTE_PTR attr, CK_BYTE attr_data[], BIGNUM **bn) + { + if (attr->ulValueLen > 0) + *bn = BN_bin2bn(attr_data, attr->ulValueLen, NULL); + } + +/* + * Find one object in the token. It is an error if we can not find the object or + * if we find more objects based on the template we got. + * + * Returns: + * 1 OK + * 0 no object or more than 1 object found + */ +static int +find_one_object(PK11_OPTYPE op, CK_SESSION_HANDLE s, + CK_ATTRIBUTE_PTR ptempl, CK_ULONG nattr, CK_OBJECT_HANDLE_PTR pkey) + { + CK_RV rv; + CK_ULONG objcnt; + + LOCK_OBJSTORE(op); + if ((rv = pFuncList->C_FindObjectsInit(s, ptempl, nattr)) != CKR_OK) + { + PK11err_add_data(PK11_F_FIND_ONE_OBJECT, + PK11_R_FINDOBJECTSINIT, rv); + goto err; + } + + rv = pFuncList->C_FindObjects(s, pkey, 1, &objcnt); + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_FIND_ONE_OBJECT, PK11_R_FINDOBJECTS, + rv); + goto err; + } + + if (objcnt > 1) + { + PK11err(PK11_F_FIND_ONE_OBJECT, + PK11_R_MORE_THAN_ONE_OBJECT_FOUND); + goto err; + } + else + if (objcnt == 0) + { + PK11err(PK11_F_FIND_ONE_OBJECT, PK11_R_NO_OBJECT_FOUND); + goto err; + } + + (void) pFuncList->C_FindObjectsFinal(s); + UNLOCK_OBJSTORE(op); + return (1); +err: + UNLOCK_OBJSTORE(op); + return (0); + } + +/* + * OpenSSL 1.0.0 introduced ENGINE API for the PKEY EVP functions. Sadly, + * "openssl dgst -dss1 ..." now uses a new function EVP_DigestSignInit() which + * internally needs a PKEY method for DSA even when in the engine. So, to avoid + * a regression when moving from 0.9.8 to 1.0.0, we use an internal OpenSSL + * structure for the DSA PKEY methods to make it work. It is a future project to + * make it work with HW acceleration. + * + * Note that at the time of 1.0.0d release there is no documentation as to how + * the PKEY EVP functions are to be implemented in an engine. There is only one + * engine shipped with 1.0.0d that uses the PKEY EVP methods, the GOST engine. + * It was used as an example when fixing the above mentioned regression problem. + */ +int +pk11_engine_pkey_methods(ENGINE *e, EVP_PKEY_METHOD **pmeth, const int **nids, + int nid) + { + if (pmeth == NULL) + { + *nids = pk11_pkey_meth_nids; + return (1); + } + + switch (nid) + { + case NID_dsa: + *pmeth = (EVP_PKEY_METHOD *)EVP_PKEY_meth_find(nid); + return (1); + } + + /* Error branch. */ + *pmeth = NULL; + return (0); + } + +#endif /* OPENSSL_NO_HW_PK11 */ +#endif /* OPENSSL_NO_HW */ diff --git a/openssl1.0.0/engines/pkcs11/hw_pk11_uri.c b/openssl1.0.0/engines/pkcs11/hw_pk11_uri.c new file mode 100644 index 0000000..faec39c --- /dev/null +++ b/openssl1.0.0/engines/pkcs11/hw_pk11_uri.c @@ -0,0 +1,869 @@ +/* + * Copyright (c) 2010, 2011, Oracle and/or its affiliates. All rights reserved. + */ + +/* + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/types.h> +#include <sys/wait.h> +#include <sys/mman.h> +#include <unistd.h> +#include <strings.h> +#include <libgen.h> +#include <pthread.h> +#include <assert.h> +#include <errno.h> + +#include <openssl/crypto.h> + +#ifndef OPENSSL_NO_HW +#ifndef OPENSSL_NO_HW_PK11 + +#include <security/cryptoki.h> +#include <security/pkcs11.h> +#include "hw_pk11.h" +#include "hw_pk11_uri.h" + +/* + * The keystore used is always from the pubkey slot so we need to know which one + * was selected so that we can get the information needed for the URI + * processing. + */ +extern CK_SLOT_ID pubkey_SLOTID; +extern CK_FUNCTION_LIST_PTR pFuncList; + +/* + * Cached PIN so that child can use it during the re-login. Note that we do not + * cache the PIN by default. + */ +static char *token_pin; + +static int mlock_pin_in_memory(char *pin); +static char *run_askpass(char *dialog); + +/* + * Get the PIN. Either run the command and use its standard output as a PIN to + * fill in the PKCS11 URI structure, or read the PIN from the terminal. Using + * the external command is of higher precedence. The memory for PIN is allocated + * in this function and the PIN is always NULL terminated. The caller must take + * care of freeing the memory used for the PIN. The maximum PIN length accepted + * is PK11_MAX_PIN_LEN. + * + * The function is used also during the re-initialization of the engine after + * the fork. + * + * The function must not be called under the protection of the mutex "uri_lock" + * because the lock is acquired in the prefork function. + * + * Returns: + * 0 in case of troubles (and sets "*pin" to NULL) + * 1 if we got the PIN + */ +#define EXEC_SPEC "exec:" +#define BUILTIN_SPEC "builtin" +int +pk11_get_pin(char *dialog, char **pin) + { + /* Initialize as an error. */ + *pin = NULL; + + if (strcmp(dialog, BUILTIN_SPEC) == 0) + { + /* The getpassphrase() function is not MT safe. */ + (void) pthread_mutex_lock(uri_lock); + /* Note that OpenSSL is not localized at all. */ + *pin = getpassphrase("Enter token PIN: "); + if (*pin == NULL) + { + PK11err(PK11_F_GET_PIN, PK11_R_COULD_NOT_READ_PIN); + (void) pthread_mutex_unlock(uri_lock); + goto err; + } + else + { + char *pw; + + /* + * getpassphrase() uses an internal buffer to hold the + * entered password. Note that it terminates the buffer + * with '\0'. + */ + if ((pw = strdup(*pin)) == NULL) + { + PK11err(PK11_F_GET_PIN, PK11_R_MALLOC_FAILURE); + (void) pthread_mutex_unlock(uri_lock); + goto err; + } + /* Zero the internal buffer to get rid of the PIN. */ + memset(*pin, 0, strlen(*pin)); + *pin = pw; + (void) pthread_mutex_unlock(uri_lock); + } + } + else + { + /* + * This is the "exec:" case. We will get the PIN from the output + * of an external command. + */ + if (strncmp(dialog, EXEC_SPEC, strlen(EXEC_SPEC)) == 0) + { + dialog += strlen(EXEC_SPEC); + if ((*pin = run_askpass(dialog)) == NULL) + goto err; + } + else + { + /* + * Invalid specification in the passphrasedialog + * keyword. + */ + PK11err(PK11_F_GET_PIN, PK11_R_BAD_PASSPHRASE_SPEC); + goto err; + } + } + + return (1); +err: + return (0); + } + +/* + * Process the PKCS#11 URI and get the PIN. It uses information from the + * passphrasedialog keyword to get the PIN. If passphrasedialog is not present + * it is not considered an error since it depends on the token attributes + * whether C_Login() is required. The function expects an allocated 'uri_struct' + * structure. + * + * Returns: + * 0 if URI is not valid at all, or if we could not get the PIN + * 1 if all is OK + * 2 if the URI is not the PKCS#11 URI. In that case, put the string + * pointer to the filename to "*file". Note that the pointer just points + * inside of the "uristr", possibly skipping the file:// prefix if present. + */ +int +pk11_process_pkcs11_uri(const char *uristr, pkcs11_uri *uri_struct, + const char **file) + { + char *uristr2, *l1, *l2, *tok, *name; + + /* Check the "file://" case. */ + if (strncmp(uristr, FILE_URI_PREFIX, strlen(FILE_URI_PREFIX)) == 0) + { + *file = uristr + strlen(FILE_URI_PREFIX); + return (2); + } + + /* This is the "pkcs11:" case. */ + if (strncmp(uristr, PK11_URI_PREFIX, strlen(PK11_URI_PREFIX)) != 0) + { + /* Not PKCS#11 URI at all, could be a filename. */ + *file = (const char *)uristr; + return (2); + } + else + { + /* Dup the string and skip over the pkcs11: prefix then. */ + uristr2 = strdup(uristr + strlen(PK11_URI_PREFIX)); + if (uristr2 == NULL) + { + PK11err(PK11_F_CHECK_TOKEN_ATTRS, + PK11_R_MALLOC_FAILURE); + goto err; + } + } + + /* Initialize the structure. */ + memset(uri_struct, 0, sizeof (*uri_struct)); + + /* + * Using strtok_r() would silently skip over multiple semicolons. We + * must check that before moving on. We must also avoid ';' as the first + * and the last character in the URI. + */ + if (strstr(uristr2, ";;") != NULL || uristr2[0] == ';' || + (strlen(uristr2) > 0 && uristr2[strlen(uristr2) - 1] == ';')) + goto bad_uri; + + tok = strtok_r(uristr2, ";", &l1); + for (; tok != NULL; tok = strtok_r(NULL, ";", &l1)) + { + /* "tok" is not empty so there will be something in "name". */ + name = strtok_r(tok, "=", &l2); + /* Check whether there is '=' at all. */ + if (l2 == NULL) + goto bad_uri; + + /* + * Fill out the URI structure. We do not accept duplicit + * attributes. + */ + if (strcmp(name, PK11_TOKEN) == 0) + if (uri_struct->token == NULL) + { + if ((uri_struct->token = strdup(l2)) == NULL) + goto no_mem; + } + else + goto bad_uri; + else if (strcmp(name, PK11_MANUF) == 0) + if (uri_struct->manuf == NULL) + { + if ((uri_struct->manuf = strdup(l2)) == NULL) + goto no_mem; + } + else + goto bad_uri; + else if (strcmp(name, PK11_SERIAL) == 0) + if (uri_struct->serial == NULL) + { + if ((uri_struct->serial = strdup(l2)) == NULL) + goto no_mem; + } + else + goto bad_uri; + else if (strcmp(name, PK11_MODEL) == 0) + if (uri_struct->model == NULL) + { + if ((uri_struct->model = strdup(l2)) == NULL) + goto no_mem; + } + else + goto bad_uri; + else if (strcmp(name, PK11_OBJECT) == 0) + if (uri_struct->object == NULL) + { + if ((uri_struct->object = strdup(l2)) == NULL) + goto no_mem; + } + else + goto bad_uri; + else if (strcmp(name, PK11_OBJECTTYPE) == 0) + if (uri_struct->objecttype == NULL) + { + uri_struct->objecttype = strdup(l2); + if (uri_struct->objecttype == NULL) + goto no_mem; + } + else + goto bad_uri; + else if (strcmp(name, PK11_ASKPASS) == 0) + if (uri_struct->askpass == NULL) + { + if ((uri_struct->askpass = strdup(l2)) == NULL) + goto no_mem; + } + else + goto bad_uri; + else + goto bad_uri; + } + + /* The "object" token is mandatory in the PKCS#11 URI. */ + if (uri_struct->object == NULL) + { + PK11err(PK11_F_LOAD_PRIVKEY, PK11_R_MISSING_OBJECT_LABEL); + goto err; + } + + free(uristr2); + return (1); +bad_uri: + PK11err(PK11_F_LOAD_PRIVKEY, PK11_R_INVALID_PKCS11_URI); + if (uristr2 != NULL) + free(uristr2); + return (0); +no_mem: + PK11err(PK11_F_LOAD_PRIVKEY, PK11_R_MALLOC_FAILURE); +err: + pk11_free_pkcs11_uri(uri_struct, CK_FALSE); + if (uristr2 != NULL) + free(uristr2); + return (0); + } + +/* + * Free the PKCS11 URI structure and anything that might be inside. + */ +void +pk11_free_pkcs11_uri(pkcs11_uri *uri_struct, CK_BBOOL free_uri_itself) + { + if (uri_struct->token != NULL) + free(uri_struct->token); + if (uri_struct->manuf != NULL) + free(uri_struct->manuf); + if (uri_struct->serial != NULL) + free(uri_struct->serial); + if (uri_struct->model != NULL) + free(uri_struct->model); + if (uri_struct->object != NULL) + free(uri_struct->object); + if (uri_struct->objecttype != NULL) + free(uri_struct->objecttype); + if (uri_struct->askpass != NULL) + free(uri_struct->askpass); + + if (free_uri_itself == CK_TRUE) + OPENSSL_free(uri_struct); + } + +/* + * While our keystore is always the one used by the pubkey slot (which is + * usually the Metaslot) we must make sure that those URI attributes that + * specify the keystore match the real attributes of our slot keystore. Note + * that one can use the METASLOT_OBJECTSTORE_TOKEN environment variable to + * change the Metaslot's keystore from the softtoken to something else (see + * libpkcs11(3LIB)). The user might want to use such attributes in the PKCS#11 + * URI to make sure that the intended keystore is used. + * + * Returns: + * 1 on success + * 0 on failure + */ +int +pk11_check_token_attrs(pkcs11_uri *uri_struct) + { + CK_RV rv; + static CK_TOKEN_INFO_PTR token_info = NULL; + + (void) pthread_mutex_lock(uri_lock); + if (token_info == NULL) + { + token_info = OPENSSL_malloc(sizeof (CK_TOKEN_INFO)); + if (token_info == NULL) + { + PK11err(PK11_F_CHECK_TOKEN_ATTRS, + PK11_R_MALLOC_FAILURE); + goto err; + } + + rv = pFuncList->C_GetTokenInfo(pubkey_SLOTID, token_info); + if (rv != CKR_OK) + { + PK11err_add_data(PK11_F_CHECK_TOKEN_ATTRS, + PK11_R_GETTOKENINFO, rv); + goto err; + } + } + + if (uri_struct->token != NULL) + if (strncmp(uri_struct->token, (char *)token_info->label, + strlen(uri_struct->token) > 32 ? 32 : + strlen(uri_struct->token)) != 0) + { + goto urierr; + } + + if (uri_struct->manuf != NULL) + if (strncmp(uri_struct->manuf, + (char *)token_info->manufacturerID, + strlen(uri_struct->manuf) > 32 ? 32 : + strlen(uri_struct->manuf)) != 0) + goto urierr; + + if (uri_struct->model != NULL) + if (strncmp(uri_struct->model, (char *)token_info->model, + strlen(uri_struct->model) > 16 ? 16 : + strlen(uri_struct->model)) != 0) + goto urierr; + + if (uri_struct->serial != NULL) + if (strncmp(uri_struct->serial, + (char *)token_info->serialNumber, + strlen(uri_struct->serial) > 16 ? 16 : + strlen(uri_struct->serial)) != 0) + goto urierr; + + (void) pthread_mutex_unlock(uri_lock); + return (1); + +urierr: + PK11err(PK11_F_CHECK_TOKEN_ATTRS, PK11_R_TOKEN_ATTRS_DO_NOT_MATCH); + /* Correct error already set above for the "err" label. */ +err: + (void) pthread_mutex_unlock(uri_lock); + return (0); + } + +/* + * Return the process PIN caching policy. We initialize it just once so if the + * process change OPENSSL_PKCS11_PIN_CACHING_POLICY during the operation it will + * not have any affect on the policy. + * + * We assume that the "uri_lock" mutex is already locked. + * + * Returns the caching policy number. + */ +int +pk11_get_pin_caching_policy(void) + { + char *value = NULL; + static int policy = POLICY_NOT_INITIALIZED; + + if (policy != POLICY_NOT_INITIALIZED) + return (policy); + + value = getenv("OPENSSL_PKCS11_PIN_CACHING_POLICY"); + + if (value == NULL || strcmp(value, "none") == 0) + { + policy = POLICY_NONE; + goto done; + } + + if (strcmp(value, "memory") == 0) + { + policy = POLICY_MEMORY; + goto done; + } + + if (strcmp(value, "mlocked-memory") == 0) + { + policy = POLICY_MLOCKED_MEMORY; + goto done; + } + + return (POLICY_WRONG_VALUE); +done: + return (policy); + } + +/* + * Cache the PIN in memory once. We already know that we have either "memory" or + * "mlocked-memory" keyword correctly set. + * + * Returns: + * 1 on success + * 0 on failure + */ +int +pk11_cache_pin(char *pin) + { + (void) pthread_mutex_lock(uri_lock); + /* We set the PIN only once since all URIs must have it the same. */ + if (token_pin != NULL) + goto ok; + + if (pk11_get_pin_caching_policy() == POLICY_MEMORY) + if ((token_pin = strdup(pin)) == NULL) + { + PK11err(PK11_F_CACHE_PIN, PK11_R_MALLOC_FAILURE); + goto err; + } + else + if (pk11_get_pin_caching_policy() == POLICY_MLOCKED_MEMORY) + { + if (mlock_pin_in_memory(pin) == 0) + goto err; + } + +ok: + (void) pthread_mutex_unlock(uri_lock); + return (1); +err: + (void) pthread_mutex_unlock(uri_lock); + return (0); + } + +/* + * Cache the PIN in mlock(3C)ed memory. If mlock(3C) fails we will not resort to + * the normal memory caching. + * + * Note that this function must be called under the protection of the "uri_lock" + * mutex. + * + * Returns: + * 1 on success + * 0 on failure + */ +static int +mlock_pin_in_memory(char *pin) + { + void *addr = NULL; + long pagesize = 0; + + /* mlock(3C) locks pages so we need one whole page for the PIN. */ + if ((pagesize = sysconf(_SC_PAGESIZE)) == -1) + { + PK11err(PK11_F_MLOCK_PIN_IN_MEMORY, PK11_R_SYSCONF_FAILED); + goto err; + } + + /* This will ensure we have a page aligned pointer... */ + if ((addr = mmap(0, pagesize, PROT_READ | PROT_WRITE, + MAP_PRIVATE | MAP_ANON, -1, 0)) == MAP_FAILED) + { + PK11err(PK11_F_MLOCK_PIN_IN_MEMORY, PK11_R_MMAP_FAILED); + goto err; + } + + /* ...because "addr" must be page aligned here. */ + if (mlock(addr, pagesize) == -1) + { + /* + * Missing the PRIV_PROC_LOCK_MEMORY privilege might be a common + * problem so distinguish this situation from other issues. + */ + if (errno == EPERM) + PK11err(PK11_F_MLOCK_PIN_IN_MEMORY, + PK11_R_PRIV_PROC_LOCK_MEMORY_MISSING); + else + PK11err(PK11_F_MLOCK_PIN_IN_MEMORY, + PK11_R_MLOCK_FAILED); + + /* + * We already have a problem here so there is no need to check + * that we could unmap the page. The PIN is not there yet + * anyway. + */ + (void) munmap(addr, pagesize); + goto err; + } + + /* Copy the PIN to the mlocked memory. */ + token_pin = (char *)addr; + strlcpy(token_pin, pin, PK11_MAX_PIN_LEN + 1); + return (1); +err: + return (0); + } + +/* + * Log in to the keystore if we are supposed to do that at all. Take care of + * reading and caching the PIN etc. Log in only once even when called from + * multiple threads. + * + * Returns: + * 1 on success + * 0 on failure + */ +int +pk11_token_login(CK_SESSION_HANDLE session, CK_BBOOL *login_done, + pkcs11_uri *uri_struct, CK_BBOOL is_private) + { + CK_RV rv; + + if ((pubkey_token_flags & CKF_TOKEN_INITIALIZED) == 0) + { + PK11err(PK11_F_TOKEN_LOGIN, + PK11_R_TOKEN_NOT_INITIALIZED); + goto err; + } + + /* + * If login is required or needed but the PIN has not been even + * initialized we can bail out right now. Note that we are supposed to + * always log in if we are going to access private keys. However, we may + * need to log in even for accessing public keys in case that the + * CKF_LOGIN_REQUIRED flag is set. + */ + if ((pubkey_token_flags & CKF_LOGIN_REQUIRED || + is_private == CK_TRUE) && ~pubkey_token_flags & + CKF_USER_PIN_INITIALIZED) + { + PK11err(PK11_F_TOKEN_LOGIN, PK11_R_TOKEN_PIN_NOT_SET); + goto err; + } + + /* + * Note on locking: it is possible that more than one thread gets into + * pk11_get_pin() so we must deal with that. We cannot avoid it since we + * cannot guard fork() in there with a lock because we could end up in + * a dead lock in the child. Why? Remember we are in a multithreaded + * environment so we must lock all mutexes in the prefork function to + * avoid a situation in which a thread that did not call fork() held a + * lock, making future unlocking impossible. We lock right before + * C_Login(). + */ + if (pubkey_token_flags & CKF_LOGIN_REQUIRED || is_private == CK_TRUE) + { + if (*login_done == CK_FALSE && + uri_struct->askpass == NULL) + { + PK11err(PK11_F_TOKEN_LOGIN, + PK11_R_TOKEN_PIN_NOT_PROVIDED); + goto err; + } + + if (*login_done == CK_FALSE && + uri_struct->askpass != NULL) + { + if (pk11_get_pin(uri_struct->askpass, + &uri_struct->pin) == 0) + { + PK11err(PK11_F_TOKEN_LOGIN, + PK11_R_TOKEN_PIN_NOT_PROVIDED); + goto err; + } + } + + /* + * Note that what we are logging into is the keystore from + * pubkey_SLOTID because we work with OP_RSA session type here. + * That also means that we can work with only one keystore in + * the engine. + * + * We must make sure we do not try to login more than once. + * Also, see the comment above on locking strategy. + */ + (void) pthread_mutex_lock(uri_lock); + if (*login_done == CK_FALSE) + { + if ((rv = pFuncList->C_Login(session, + CKU_USER, (CK_UTF8CHAR*)uri_struct->pin, + strlen(uri_struct->pin))) != CKR_OK) + { + PK11err_add_data(PK11_F_TOKEN_LOGIN, + PK11_R_TOKEN_LOGIN_FAILED, rv); + goto err_locked; + } + + *login_done = CK_TRUE; + + /* + * Cache the passphrasedialog for possible child (which + * would need to relogin). + */ + if (passphrasedialog == NULL && + uri_struct->askpass != NULL) + { + passphrasedialog = + strdup(uri_struct->askpass); + + if (passphrasedialog == NULL) + { + PK11err_add_data(PK11_F_TOKEN_LOGIN, + PK11_R_MALLOC_FAILURE, rv); + goto err_locked; + } + } + + /* + * Check the PIN caching policy. Note that user might + * have provided a PIN even when no PIN was required - + * in that case we always remove the PIN from memory. + */ + if (pk11_get_pin_caching_policy() == + POLICY_WRONG_VALUE) + { + PK11err(PK11_F_TOKEN_LOGIN, + PK11_R_PIN_CACHING_POLICY_INVALID); + goto err_locked; + } + + if (pk11_get_pin_caching_policy() != POLICY_NONE) + if (pk11_cache_pin(uri_struct->pin) == 0) + goto err_locked; + } + (void) pthread_mutex_unlock(uri_lock); + } + else + { + /* + * If token does not require login we take it as the + * login was done. + */ + *login_done = CK_TRUE; + } + + /* + * If we raced at pk11_get_pin() we must make sure that all threads that + * called pk11_get_pin() will erase the PIN from memory, not just the + * one that called C_Login(). Note that if we were supposed to cache the + * PIN it was already cached by now so filling "uri_struct.pin" with + * zero bytes is always OK since pk11_cache_pin() makes a copy of it. + */ + if (uri_struct->pin != NULL) + memset(uri_struct->pin, 0, strlen(uri_struct->pin)); + + return (1); + +err_locked: + (void) pthread_mutex_unlock(uri_lock); +err: + /* Always get rid of the PIN. */ + if (uri_struct->pin != NULL) + memset(uri_struct->pin, 0, strlen(uri_struct->pin)); + return (0); + } + +/* + * Log in to the keystore in the child if we were logged in in the parent. There + * are similarities in the code with pk11_token_login() but still it is quite + * different so we need a separate function for this. + * + * Note that this function is called under the locked session mutex when fork is + * detected. That means that C_Login() will be called from the child just once. + * + * Returns: + * 1 on success + * 0 on failure + */ +int +pk11_token_relogin(CK_SESSION_HANDLE session) + { + CK_RV rv; + + /* + * We are in the child so check if we should login to the token again. + * Note that it is enough to log in to the token through one session + * only, all already open and all future sessions can access the token + * then. + */ + if (passphrasedialog != NULL) + { + char *pin = NULL; + + /* If we cached the PIN then use it. */ + if (token_pin != NULL) + pin = token_pin; + else if (pk11_get_pin(passphrasedialog, &pin) == 0) + goto err; + + (void) pthread_mutex_lock(uri_lock); + if ((rv = pFuncList->C_Login(session, CKU_USER, + (CK_UTF8CHAR_PTR)pin, strlen(pin))) != CKR_OK) + { + PK11err_add_data(PK11_F_TOKEN_RELOGIN, + PK11_R_TOKEN_LOGIN_FAILED, rv); + (void) pthread_mutex_unlock(uri_lock); + goto err; + } + (void) pthread_mutex_unlock(uri_lock); + + /* Forget the PIN now if we did not cache it before. */ + if (pin != token_pin) + { + memset(pin, 0, strlen(pin)); + OPENSSL_free(pin); + } + } + + return (1); +err: + return (0); + } + +/* + * This function forks and runs an external command. It would be nice if we + * could use popen(3C)/pclose(3C) for that but unfortunately we need to be able + * to get rid of the PIN from the memory. With p(open|close) function calls we + * cannot control the stdio's memory used for buffering and our tests showed + * that the PIN really stays there even after pclose(). + * + * Returns: + * allocated buffer on success + * NULL on failure + */ +static char * +run_askpass(char *dialog) + { + pid_t pid; + int n, p[2]; + char *buf = NULL; + + if (pipe(p) == -1) + { + PK11err(PK11_F_RUN_ASKPASS, PK11_R_PIPE_FAILED); + return (NULL); + } + + switch (pid = fork()) + { + case -1: + PK11err(PK11_F_RUN_ASKPASS, PK11_R_FORK_FAILED); + return (NULL); + /* child */ + case 0: + /* + * This should make sure that dup2() will not fail on + * file descriptor shortage. + */ + close(p[0]); + (void) dup2(p[1], 1); + close(p[1]); + /* + * Note that we cannot use PK11err() here since we are + * in the child. However, parent will get read() error + * so do not worry. + */ + (void) execl(dialog, basename(dialog), NULL); + exit(1); + /* parent */ + default: + /* +1 is for the terminating '\0' */ + buf = (char *)OPENSSL_malloc(PK11_MAX_PIN_LEN + 1); + if (buf == NULL) + { + PK11err(PK11_F_RUN_ASKPASS, + PK11_R_MALLOC_FAILURE); + return (NULL); + } + + close(p[1]); + n = read(p[0], buf, PK11_MAX_PIN_LEN); + if (n == -1 || n == 0) + { + PK11err(PK11_F_RUN_ASKPASS, + PK11_R_PIN_NOT_READ_FROM_COMMAND); + OPENSSL_free(buf); + return (NULL); + } + buf[n] = '\0'; + + (void) waitpid(pid, NULL, 0); + } + + return (buf); + } + +#endif /* OPENSSL_NO_HW_PK11 */ +#endif /* OPENSSL_NO_HW */ diff --git a/openssl1.0.0/engines/pkcs11/hw_pk11_uri.h b/openssl1.0.0/engines/pkcs11/hw_pk11_uri.h new file mode 100644 index 0000000..5df42d7 --- /dev/null +++ b/openssl1.0.0/engines/pkcs11/hw_pk11_uri.h @@ -0,0 +1,113 @@ +/* + * Copyright (c) 2004, 2011, Oracle and/or its affiliates. All rights reserved. + */ + +/* + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef HW_PK11_URI_H +#define HW_PK11_URI_H + +#include <security/pkcs11t.h> + +#ifdef __cplusplus +extern "C" { +#endif + +/* PKCS#11 URI related prefixes and attributes. */ +#define PK11_URI_PREFIX "pkcs11:" +#define FILE_URI_PREFIX "file://" +#define PK11_TOKEN "token" +#define PK11_MANUF "manuf" +#define PK11_SERIAL "serial" +#define PK11_MODEL "model" +#define PK11_OBJECT "object" +#define PK11_OBJECTTYPE "objecttype" +#define PK11_ASKPASS "passphrasedialog" + +/* PIN caching policy. */ +#define POLICY_NOT_INITIALIZED 0 +#define POLICY_NONE 1 +#define POLICY_MEMORY 2 +#define POLICY_MLOCKED_MEMORY 3 +#define POLICY_WRONG_VALUE 4 + +/* + * That's what getpassphrase(3c) supports. + */ +#define PK11_MAX_PIN_LEN 256 + +/* Add new attributes of the PKCS#11 URI here. */ +typedef struct pkcs11_uri_struct { + char *object; /* object label, the only mandatory info */ + char *objecttype; /* (private|public|cert), currently unused */ + char *token; /* token label */ + char *manuf; /* manufacturer label */ + char *serial; /* serial number label */ + char *model; /* model label */ + char *askpass; /* full path to the command to get the PIN */ + /* Not part of the PKCS11 URI itself. */ + char *pin; /* token PIN */ +} pkcs11_uri; + +/* For URI processing. */ +extern pthread_mutex_t *uri_lock; + +int pk11_get_pin(char *dialog, char **pin); +int pk11_get_pin_caching_policy(void); +int pk11_process_pkcs11_uri(const char *uristr, pkcs11_uri *uri_struct, + const char **file); +int pk11_check_token_attrs(pkcs11_uri *uri_struct); +void pk11_free_pkcs11_uri(pkcs11_uri *uri_struct, CK_BBOOL free_uri_itself); +int pk11_cache_pin(char *pin); +int pk11_token_login(CK_SESSION_HANDLE session, CK_BBOOL *login_done, + pkcs11_uri *uri_struct, CK_BBOOL is_private); +int pk11_token_relogin(CK_SESSION_HANDLE session); + +#ifdef __cplusplus +} +#endif +#endif /* HW_PK11_URI_H */ |