e_aep.c
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上传日期:2020-08-09
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- /* ====================================================================
- * Copyright (c) 1999 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/bn.h>
- #include <string.h>
- #include <openssl/e_os2.h>
- #if !defined(OPENSSL_SYS_MSDOS) || defined(__DJGPP__)
- #include <sys/types.h>
- #include <unistd.h>
- #else
- #include <process.h>
- typedef int pid_t;
- #endif
- #include <openssl/crypto.h>
- #include <openssl/dso.h>
- #include <openssl/engine.h>
- #include <openssl/buffer.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/bn.h>
- #ifndef OPENSSL_NO_HW
- #ifndef OPENSSL_NO_HW_AEP
- #ifdef FLAT_INC
- #include "aep.h"
- #else
- #include "vendor_defns/aep.h"
- #endif
- #define AEP_LIB_NAME "aep engine"
- #define FAIL_TO_SW 0x10101010
- #include "e_aep_err.c"
- static int aep_init(ENGINE *e);
- static int aep_finish(ENGINE *e);
- static int aep_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void));
- static int aep_destroy(ENGINE *e);
- static AEP_RV aep_get_connection(AEP_CONNECTION_HNDL_PTR hConnection);
- static AEP_RV aep_return_connection(AEP_CONNECTION_HNDL hConnection);
- static AEP_RV aep_close_connection(AEP_CONNECTION_HNDL hConnection);
- static AEP_RV aep_close_all_connections(int use_engine_lock, int *in_use);
- /* BIGNUM stuff */
- #ifndef OPENSSL_NO_RSA
- static int aep_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
- const BIGNUM *m, BN_CTX *ctx);
- static AEP_RV aep_mod_exp_crt(BIGNUM *r,const BIGNUM *a, const BIGNUM *p,
- const BIGNUM *q, const BIGNUM *dmp1,const BIGNUM *dmq1,
- const BIGNUM *iqmp, BN_CTX *ctx);
- #endif
- /* RSA stuff */
- #ifndef OPENSSL_NO_RSA
- static int aep_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx);
- #endif
- /* This function is aliased to mod_exp (with the mont stuff dropped). */
- #ifndef OPENSSL_NO_RSA
- static int aep_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
- const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
- #endif
- /* DSA stuff */
- #ifndef OPENSSL_NO_DSA
- static int aep_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
- BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
- BN_CTX *ctx, BN_MONT_CTX *in_mont);
- static int aep_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
- const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
- BN_MONT_CTX *m_ctx);
- #endif
- /* DH stuff */
- /* This function is aliased to mod_exp (with the DH and mont dropped). */
- #ifndef OPENSSL_NO_DH
- static int aep_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
- const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
- #endif
- /* rand stuff */
- #ifdef AEPRAND
- static int aep_rand(unsigned char *buf, int num);
- static int aep_rand_status(void);
- #endif
- /* Bignum conversion stuff */
- static AEP_RV GetBigNumSize(AEP_VOID_PTR ArbBigNum, AEP_U32* BigNumSize);
- static AEP_RV MakeAEPBigNum(AEP_VOID_PTR ArbBigNum, AEP_U32 BigNumSize,
- unsigned char* AEP_BigNum);
- static AEP_RV ConvertAEPBigNum(void* ArbBigNum, AEP_U32 BigNumSize,
- unsigned char* AEP_BigNum);
- /* The definitions for control commands specific to this engine */
- #define AEP_CMD_SO_PATH ENGINE_CMD_BASE
- static const ENGINE_CMD_DEFN aep_cmd_defns[] =
- {
- { AEP_CMD_SO_PATH,
- "SO_PATH",
- "Specifies the path to the 'aep' shared library",
- ENGINE_CMD_FLAG_STRING
- },
- {0, NULL, NULL, 0}
- };
- #ifndef OPENSSL_NO_RSA
- /* Our internal RSA_METHOD that we provide pointers to */
- static RSA_METHOD aep_rsa =
- {
- "Aep RSA method",
- NULL, /*rsa_pub_encrypt*/
- NULL, /*rsa_pub_decrypt*/
- NULL, /*rsa_priv_encrypt*/
- NULL, /*rsa_priv_encrypt*/
- aep_rsa_mod_exp, /*rsa_mod_exp*/
- aep_mod_exp_mont, /*bn_mod_exp*/
- NULL, /*init*/
- NULL, /*finish*/
- 0, /*flags*/
- NULL, /*app_data*/
- NULL, /*rsa_sign*/
- NULL, /*rsa_verify*/
- NULL /*rsa_keygen*/
- };
- #endif
- #ifndef OPENSSL_NO_DSA
- /* Our internal DSA_METHOD that we provide pointers to */
- static DSA_METHOD aep_dsa =
- {
- "Aep DSA method",
- NULL, /* dsa_do_sign */
- NULL, /* dsa_sign_setup */
- NULL, /* dsa_do_verify */
- aep_dsa_mod_exp, /* dsa_mod_exp */
- aep_mod_exp_dsa, /* bn_mod_exp */
- NULL, /* init */
- NULL, /* finish */
- 0, /* flags */
- NULL, /* app_data */
- NULL, /* dsa_paramgen */
- NULL /* dsa_keygen */
- };
- #endif
- #ifndef OPENSSL_NO_DH
- /* Our internal DH_METHOD that we provide pointers to */
- static DH_METHOD aep_dh =
- {
- "Aep DH method",
- NULL,
- NULL,
- aep_mod_exp_dh,
- NULL,
- NULL,
- 0,
- NULL,
- NULL
- };
- #endif
- #ifdef AEPRAND
- /* our internal RAND_method that we provide pointers to */
- static RAND_METHOD aep_random =
- {
- /*"AEP RAND method", */
- NULL,
- aep_rand,
- NULL,
- NULL,
- aep_rand,
- aep_rand_status,
- };
- #endif
- /*Define an array of structures to hold connections*/
- static AEP_CONNECTION_ENTRY aep_app_conn_table[MAX_PROCESS_CONNECTIONS];
- /*Used to determine if this is a new process*/
- static pid_t recorded_pid = 0;
- #ifdef AEPRAND
- static AEP_U8 rand_block[RAND_BLK_SIZE];
- static AEP_U32 rand_block_bytes = 0;
- #endif
- /* Constants used when creating the ENGINE */
- static const char *engine_aep_id = "aep";
- static const char *engine_aep_name = "Aep hardware engine support";
- static int max_key_len = 2176;
- /* This internal function is used by ENGINE_aep() and possibly by the
- * "dynamic" ENGINE support too */
- static int bind_aep(ENGINE *e)
- {
- #ifndef OPENSSL_NO_RSA
- const RSA_METHOD *meth1;
- #endif
- #ifndef OPENSSL_NO_DSA
- const DSA_METHOD *meth2;
- #endif
- #ifndef OPENSSL_NO_DH
- const DH_METHOD *meth3;
- #endif
- if(!ENGINE_set_id(e, engine_aep_id) ||
- !ENGINE_set_name(e, engine_aep_name) ||
- #ifndef OPENSSL_NO_RSA
- !ENGINE_set_RSA(e, &aep_rsa) ||
- #endif
- #ifndef OPENSSL_NO_DSA
- !ENGINE_set_DSA(e, &aep_dsa) ||
- #endif
- #ifndef OPENSSL_NO_DH
- !ENGINE_set_DH(e, &aep_dh) ||
- #endif
- #ifdef AEPRAND
- !ENGINE_set_RAND(e, &aep_random) ||
- #endif
- !ENGINE_set_init_function(e, aep_init) ||
- !ENGINE_set_destroy_function(e, aep_destroy) ||
- !ENGINE_set_finish_function(e, aep_finish) ||
- !ENGINE_set_ctrl_function(e, aep_ctrl) ||
- !ENGINE_set_cmd_defns(e, aep_cmd_defns))
- return 0;
- #ifndef OPENSSL_NO_RSA
- /* We know that the "PKCS1_SSLeay()" functions hook properly
- * to the aep-specific mod_exp and mod_exp_crt so we use
- * those functions. NB: We don't use ENGINE_openssl() or
- * anything "more generic" because something like the RSAref
- * code may not hook properly, and if you own one of these
- * cards then you have the right to do RSA operations on it
- * anyway! */
- meth1 = RSA_PKCS1_SSLeay();
- aep_rsa.rsa_pub_enc = meth1->rsa_pub_enc;
- aep_rsa.rsa_pub_dec = meth1->rsa_pub_dec;
- aep_rsa.rsa_priv_enc = meth1->rsa_priv_enc;
- aep_rsa.rsa_priv_dec = meth1->rsa_priv_dec;
- #endif
- #ifndef OPENSSL_NO_DSA
- /* Use the DSA_OpenSSL() method and just hook the mod_exp-ish
- * bits. */
- meth2 = DSA_OpenSSL();
- aep_dsa.dsa_do_sign = meth2->dsa_do_sign;
- aep_dsa.dsa_sign_setup = meth2->dsa_sign_setup;
- aep_dsa.dsa_do_verify = meth2->dsa_do_verify;
- aep_dsa = *DSA_get_default_method();
- aep_dsa.dsa_mod_exp = aep_dsa_mod_exp;
- aep_dsa.bn_mod_exp = aep_mod_exp_dsa;
- #endif
- #ifndef OPENSSL_NO_DH
- /* Much the same for Diffie-Hellman */
- meth3 = DH_OpenSSL();
- aep_dh.generate_key = meth3->generate_key;
- aep_dh.compute_key = meth3->compute_key;
- aep_dh.bn_mod_exp = meth3->bn_mod_exp;
- #endif
- /* Ensure the aep error handling is set up */
- ERR_load_AEPHK_strings();
- return 1;
- }
- #ifndef OPENSSL_NO_DYNAMIC_ENGINE
- static int bind_helper(ENGINE *e, const char *id)
- {
- if(id && (strcmp(id, engine_aep_id) != 0))
- return 0;
- if(!bind_aep(e))
- return 0;
- return 1;
- }
- IMPLEMENT_DYNAMIC_CHECK_FN()
- IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
- #else
- static ENGINE *engine_aep(void)
- {
- ENGINE *ret = ENGINE_new();
- if(!ret)
- return NULL;
- if(!bind_aep(ret))
- {
- ENGINE_free(ret);
- return NULL;
- }
- return ret;
- }
- void ENGINE_load_aep(void)
- {
- /* Copied from eng_[openssl|dyn].c */
- ENGINE *toadd = engine_aep();
- if(!toadd) return;
- ENGINE_add(toadd);
- ENGINE_free(toadd);
- ERR_clear_error();
- }
- #endif
- /* This is a process-global DSO handle used for loading and unloading
- * the Aep library. NB: This is only set (or unset) during an
- * init() or finish() call (reference counts permitting) and they're
- * operating with global locks, so this should be thread-safe
- * implicitly. */
- static DSO *aep_dso = NULL;
- /* These are the static string constants for the DSO file name and the function
- * symbol names to bind to.
- */
- static const char *AEP_LIBNAME = NULL;
- static const char *get_AEP_LIBNAME(void)
- {
- if(AEP_LIBNAME)
- return AEP_LIBNAME;
- return "aep";
- }
- static void free_AEP_LIBNAME(void)
- {
- if(AEP_LIBNAME)
- OPENSSL_free((void*)AEP_LIBNAME);
- AEP_LIBNAME = NULL;
- }
- static long set_AEP_LIBNAME(const char *name)
- {
- free_AEP_LIBNAME();
- return ((AEP_LIBNAME = BUF_strdup(name)) != NULL ? 1 : 0);
- }
- static const char *AEP_F1 = "AEP_ModExp";
- static const char *AEP_F2 = "AEP_ModExpCrt";
- #ifdef AEPRAND
- static const char *AEP_F3 = "AEP_GenRandom";
- #endif
- static const char *AEP_F4 = "AEP_Finalize";
- static const char *AEP_F5 = "AEP_Initialize";
- static const char *AEP_F6 = "AEP_OpenConnection";
- static const char *AEP_F7 = "AEP_SetBNCallBacks";
- static const char *AEP_F8 = "AEP_CloseConnection";
- /* These are the function pointers that are (un)set when the library has
- * successfully (un)loaded. */
- static t_AEP_OpenConnection *p_AEP_OpenConnection = NULL;
- static t_AEP_CloseConnection *p_AEP_CloseConnection = NULL;
- static t_AEP_ModExp *p_AEP_ModExp = NULL;
- static t_AEP_ModExpCrt *p_AEP_ModExpCrt = NULL;
- #ifdef AEPRAND
- static t_AEP_GenRandom *p_AEP_GenRandom = NULL;
- #endif
- static t_AEP_Initialize *p_AEP_Initialize = NULL;
- static t_AEP_Finalize *p_AEP_Finalize = NULL;
- static t_AEP_SetBNCallBacks *p_AEP_SetBNCallBacks = NULL;
- /* (de)initialisation functions. */
- static int aep_init(ENGINE *e)
- {
- t_AEP_ModExp *p1;
- t_AEP_ModExpCrt *p2;
- #ifdef AEPRAND
- t_AEP_GenRandom *p3;
- #endif
- t_AEP_Finalize *p4;
- t_AEP_Initialize *p5;
- t_AEP_OpenConnection *p6;
- t_AEP_SetBNCallBacks *p7;
- t_AEP_CloseConnection *p8;
- int to_return = 0;
-
- if(aep_dso != NULL)
- {
- AEPHKerr(AEPHK_F_AEP_INIT,AEPHK_R_ALREADY_LOADED);
- goto err;
- }
- /* Attempt to load libaep.so. */
- aep_dso = DSO_load(NULL, get_AEP_LIBNAME(), NULL, 0);
-
- if(aep_dso == NULL)
- {
- AEPHKerr(AEPHK_F_AEP_INIT,AEPHK_R_NOT_LOADED);
- goto err;
- }
- if( !(p1 = (t_AEP_ModExp *) DSO_bind_func( aep_dso,AEP_F1)) ||
- !(p2 = (t_AEP_ModExpCrt*) DSO_bind_func( aep_dso,AEP_F2)) ||
- #ifdef AEPRAND
- !(p3 = (t_AEP_GenRandom*) DSO_bind_func( aep_dso,AEP_F3)) ||
- #endif
- !(p4 = (t_AEP_Finalize*) DSO_bind_func( aep_dso,AEP_F4)) ||
- !(p5 = (t_AEP_Initialize*) DSO_bind_func( aep_dso,AEP_F5)) ||
- !(p6 = (t_AEP_OpenConnection*) DSO_bind_func( aep_dso,AEP_F6)) ||
- !(p7 = (t_AEP_SetBNCallBacks*) DSO_bind_func( aep_dso,AEP_F7)) ||
- !(p8 = (t_AEP_CloseConnection*) DSO_bind_func( aep_dso,AEP_F8)))
- {
- AEPHKerr(AEPHK_F_AEP_INIT,AEPHK_R_NOT_LOADED);
- goto err;
- }
- /* Copy the pointers */
-
- p_AEP_ModExp = p1;
- p_AEP_ModExpCrt = p2;
- #ifdef AEPRAND
- p_AEP_GenRandom = p3;
- #endif
- p_AEP_Finalize = p4;
- p_AEP_Initialize = p5;
- p_AEP_OpenConnection = p6;
- p_AEP_SetBNCallBacks = p7;
- p_AEP_CloseConnection = p8;
-
- to_return = 1;
-
- return to_return;
- err:
- if(aep_dso)
- DSO_free(aep_dso);
- aep_dso = NULL;
-
- p_AEP_OpenConnection = NULL;
- p_AEP_ModExp = NULL;
- p_AEP_ModExpCrt = NULL;
- #ifdef AEPRAND
- p_AEP_GenRandom = NULL;
- #endif
- p_AEP_Initialize = NULL;
- p_AEP_Finalize = NULL;
- p_AEP_SetBNCallBacks = NULL;
- p_AEP_CloseConnection = NULL;
- return to_return;
- }
- /* Destructor (complements the "ENGINE_aep()" constructor) */
- static int aep_destroy(ENGINE *e)
- {
- free_AEP_LIBNAME();
- ERR_unload_AEPHK_strings();
- return 1;
- }
- static int aep_finish(ENGINE *e)
- {
- int to_return = 0, in_use;
- AEP_RV rv;
- if(aep_dso == NULL)
- {
- AEPHKerr(AEPHK_F_AEP_FINISH,AEPHK_R_NOT_LOADED);
- goto err;
- }
- rv = aep_close_all_connections(0, &in_use);
- if (rv != AEP_R_OK)
- {
- AEPHKerr(AEPHK_F_AEP_FINISH,AEPHK_R_CLOSE_HANDLES_FAILED);
- goto err;
- }
- if (in_use)
- {
- AEPHKerr(AEPHK_F_AEP_FINISH,AEPHK_R_CONNECTIONS_IN_USE);
- goto err;
- }
- rv = p_AEP_Finalize();
- if (rv != AEP_R_OK)
- {
- AEPHKerr(AEPHK_F_AEP_FINISH,AEPHK_R_FINALIZE_FAILED);
- goto err;
- }
- if(!DSO_free(aep_dso))
- {
- AEPHKerr(AEPHK_F_AEP_FINISH,AEPHK_R_UNIT_FAILURE);
- goto err;
- }
- aep_dso = NULL;
- p_AEP_CloseConnection = NULL;
- p_AEP_OpenConnection = NULL;
- p_AEP_ModExp = NULL;
- p_AEP_ModExpCrt = NULL;
- #ifdef AEPRAND
- p_AEP_GenRandom = NULL;
- #endif
- p_AEP_Initialize = NULL;
- p_AEP_Finalize = NULL;
- p_AEP_SetBNCallBacks = NULL;
- to_return = 1;
- err:
- return to_return;
- }
- static int aep_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void))
- {
- int initialised = ((aep_dso == NULL) ? 0 : 1);
- switch(cmd)
- {
- case AEP_CMD_SO_PATH:
- if(p == NULL)
- {
- AEPHKerr(AEPHK_F_AEP_CTRL,
- ERR_R_PASSED_NULL_PARAMETER);
- return 0;
- }
- if(initialised)
- {
- AEPHKerr(AEPHK_F_AEP_CTRL,
- AEPHK_R_ALREADY_LOADED);
- return 0;
- }
- return set_AEP_LIBNAME((const char*)p);
- default:
- break;
- }
- AEPHKerr(AEPHK_F_AEP_CTRL,AEPHK_R_CTRL_COMMAND_NOT_IMPLEMENTED);
- return 0;
- }
- static int aep_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
- const BIGNUM *m, BN_CTX *ctx)
- {
- int to_return = 0;
- int r_len = 0;
- AEP_CONNECTION_HNDL hConnection;
- AEP_RV rv;
-
- r_len = BN_num_bits(m);
- /* Perform in software if modulus is too large for hardware. */
- if (r_len > max_key_len){
- AEPHKerr(AEPHK_F_AEP_MOD_EXP, AEPHK_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
- return BN_mod_exp(r, a, p, m, ctx);
- }
- /*Grab a connection from the pool*/
- rv = aep_get_connection(&hConnection);
- if (rv != AEP_R_OK)
- {
- AEPHKerr(AEPHK_F_AEP_MOD_EXP,AEPHK_R_GET_HANDLE_FAILED);
- return BN_mod_exp(r, a, p, m, ctx);
- }
- /*To the card with the mod exp*/
- rv = p_AEP_ModExp(hConnection,(void*)a, (void*)p,(void*)m, (void*)r,NULL);
- if (rv != AEP_R_OK)
- {
- AEPHKerr(AEPHK_F_AEP_MOD_EXP,AEPHK_R_MOD_EXP_FAILED);
- rv = aep_close_connection(hConnection);
- return BN_mod_exp(r, a, p, m, ctx);
- }
- /*Return the connection to the pool*/
- rv = aep_return_connection(hConnection);
- if (rv != AEP_R_OK)
- {
- AEPHKerr(AEPHK_F_AEP_MOD_EXP,AEPHK_R_RETURN_CONNECTION_FAILED);
- goto err;
- }
- to_return = 1;
- err:
- return to_return;
- }
-
- #ifndef OPENSSL_NO_RSA
- static AEP_RV aep_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
- const BIGNUM *q, const BIGNUM *dmp1,
- const BIGNUM *dmq1,const BIGNUM *iqmp, BN_CTX *ctx)
- {
- AEP_RV rv = AEP_R_OK;
- AEP_CONNECTION_HNDL hConnection;
- /*Grab a connection from the pool*/
- rv = aep_get_connection(&hConnection);
- if (rv != AEP_R_OK)
- {
- AEPHKerr(AEPHK_F_AEP_MOD_EXP_CRT,AEPHK_R_GET_HANDLE_FAILED);
- return FAIL_TO_SW;
- }
- /*To the card with the mod exp*/
- rv = p_AEP_ModExpCrt(hConnection,(void*)a, (void*)p, (void*)q, (void*)dmp1,(void*)dmq1,
- (void*)iqmp,(void*)r,NULL);
- if (rv != AEP_R_OK)
- {
- AEPHKerr(AEPHK_F_AEP_MOD_EXP_CRT,AEPHK_R_MOD_EXP_CRT_FAILED);
- rv = aep_close_connection(hConnection);
- return FAIL_TO_SW;
- }
- /*Return the connection to the pool*/
- rv = aep_return_connection(hConnection);
- if (rv != AEP_R_OK)
- {
- AEPHKerr(AEPHK_F_AEP_MOD_EXP_CRT,AEPHK_R_RETURN_CONNECTION_FAILED);
- goto err;
- }
-
- err:
- return rv;
- }
- #endif
-
- #ifdef AEPRAND
- static int aep_rand(unsigned char *buf,int len )
- {
- AEP_RV rv = AEP_R_OK;
- AEP_CONNECTION_HNDL hConnection;
- CRYPTO_w_lock(CRYPTO_LOCK_RAND);
- /*Can the request be serviced with what's already in the buffer?*/
- if (len <= rand_block_bytes)
- {
- memcpy(buf, &rand_block[RAND_BLK_SIZE - rand_block_bytes], len);
- rand_block_bytes -= len;
- CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
- }
- else
- /*If not the get another block of random bytes*/
- {
- CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
- rv = aep_get_connection(&hConnection);
- if (rv != AEP_R_OK)
- {
- AEPHKerr(AEPHK_F_AEP_RAND,AEPHK_R_GET_HANDLE_FAILED);
- goto err_nounlock;
- }
- if (len > RAND_BLK_SIZE)
- {
- rv = p_AEP_GenRandom(hConnection, len, 2, buf, NULL);
- if (rv != AEP_R_OK)
- {
- AEPHKerr(AEPHK_F_AEP_RAND,AEPHK_R_GET_RANDOM_FAILED);
- goto err_nounlock;
- }
- }
- else
- {
- CRYPTO_w_lock(CRYPTO_LOCK_RAND);
- rv = p_AEP_GenRandom(hConnection, RAND_BLK_SIZE, 2, &rand_block[0], NULL);
- if (rv != AEP_R_OK)
- {
- AEPHKerr(AEPHK_F_AEP_RAND,AEPHK_R_GET_RANDOM_FAILED);
-
- goto err;
- }
- rand_block_bytes = RAND_BLK_SIZE;
- memcpy(buf, &rand_block[RAND_BLK_SIZE - rand_block_bytes], len);
- rand_block_bytes -= len;
- CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
- }
- rv = aep_return_connection(hConnection);
- if (rv != AEP_R_OK)
- {
- AEPHKerr(AEPHK_F_AEP_RAND,AEPHK_R_RETURN_CONNECTION_FAILED);
-
- goto err_nounlock;
- }
- }
-
- return 1;
- err:
- CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
- err_nounlock:
- return 0;
- }
-
- static int aep_rand_status(void)
- {
- return 1;
- }
- #endif
- #ifndef OPENSSL_NO_RSA
- static int aep_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx)
- {
- int to_return = 0;
- AEP_RV rv = AEP_R_OK;
- if (!aep_dso)
- {
- AEPHKerr(AEPHK_F_AEP_RSA_MOD_EXP,AEPHK_R_NOT_LOADED);
- goto err;
- }
- /*See if we have all the necessary bits for a crt*/
- if (rsa->q && rsa->dmp1 && rsa->dmq1 && rsa->iqmp)
- {
- rv = aep_mod_exp_crt(r0,I,rsa->p,rsa->q, rsa->dmp1,rsa->dmq1,rsa->iqmp,ctx);
- if (rv == FAIL_TO_SW){
- const RSA_METHOD *meth = RSA_PKCS1_SSLeay();
- to_return = (*meth->rsa_mod_exp)(r0, I, rsa, ctx);
- goto err;
- }
- else if (rv != AEP_R_OK)
- goto err;
- }
- else
- {
- if (!rsa->d || !rsa->n)
- {
- AEPHKerr(AEPHK_F_AEP_RSA_MOD_EXP,AEPHK_R_MISSING_KEY_COMPONENTS);
- goto err;
- }
-
- rv = aep_mod_exp(r0,I,rsa->d,rsa->n,ctx);
- if (rv != AEP_R_OK)
- goto err;
-
- }
- to_return = 1;
- err:
- return to_return;
- }
- #endif
- #ifndef OPENSSL_NO_DSA
- static int aep_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
- BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
- BN_CTX *ctx, BN_MONT_CTX *in_mont)
- {
- BIGNUM t;
- int to_return = 0;
- BN_init(&t);
- /* let rr = a1 ^ p1 mod m */
- if (!aep_mod_exp(rr,a1,p1,m,ctx)) goto end;
- /* let t = a2 ^ p2 mod m */
- if (!aep_mod_exp(&t,a2,p2,m,ctx)) goto end;
- /* let rr = rr * t mod m */
- if (!BN_mod_mul(rr,rr,&t,m,ctx)) goto end;
- to_return = 1;
- end:
- BN_free(&t);
- return to_return;
- }
- static int aep_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
- const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
- BN_MONT_CTX *m_ctx)
- {
- return aep_mod_exp(r, a, p, m, ctx);
- }
- #endif
- #ifndef OPENSSL_NO_RSA
- /* This function is aliased to mod_exp (with the mont stuff dropped). */
- static int aep_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
- const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
- {
- return aep_mod_exp(r, a, p, m, ctx);
- }
- #endif
- #ifndef OPENSSL_NO_DH
- /* This function is aliased to mod_exp (with the dh and mont dropped). */
- static int aep_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
- const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
- BN_MONT_CTX *m_ctx)
- {
- return aep_mod_exp(r, a, p, m, ctx);
- }
- #endif
- static AEP_RV aep_get_connection(AEP_CONNECTION_HNDL_PTR phConnection)
- {
- int count;
- AEP_RV rv = AEP_R_OK;
- /*Get the current process id*/
- pid_t curr_pid;
- CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
- #ifndef NETWARE_CLIB
- curr_pid = getpid();
- #else
- curr_pid = GetThreadID();
- #endif
- /*Check if this is the first time this is being called from the current
- process*/
- if (recorded_pid != curr_pid)
- {
- /*Remember our pid so we can check if we're in a new process*/
- recorded_pid = curr_pid;
- /*Call Finalize to make sure we have not inherited some data
- from a parent process*/
- p_AEP_Finalize();
-
- /*Initialise the AEP API*/
- rv = p_AEP_Initialize(NULL);
- if (rv != AEP_R_OK)
- {
- AEPHKerr(AEPHK_F_AEP_GET_CONNECTION,AEPHK_R_INIT_FAILURE);
- recorded_pid = 0;
- goto end;
- }
- /*Set the AEP big num call back functions*/
- rv = p_AEP_SetBNCallBacks(&GetBigNumSize, &MakeAEPBigNum,
- &ConvertAEPBigNum);
- if (rv != AEP_R_OK)
- {
- AEPHKerr(AEPHK_F_AEP_GET_CONNECTION,AEPHK_R_SETBNCALLBACK_FAILURE);
- recorded_pid = 0;
- goto end;
- }
- #ifdef AEPRAND
- /*Reset the rand byte count*/
- rand_block_bytes = 0;
- #endif
- /*Init the structures*/
- for (count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
- {
- aep_app_conn_table[count].conn_state = NotConnected;
- aep_app_conn_table[count].conn_hndl = 0;
- }
- /*Open a connection*/
- rv = p_AEP_OpenConnection(phConnection);
- if (rv != AEP_R_OK)
- {
- AEPHKerr(AEPHK_F_AEP_GET_CONNECTION,AEPHK_R_UNIT_FAILURE);
- recorded_pid = 0;
- goto end;
- }
- aep_app_conn_table[0].conn_state = InUse;
- aep_app_conn_table[0].conn_hndl = *phConnection;
- goto end;
- }
- /*Check the existing connections to see if we can find a free one*/
- for (count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
- {
- if (aep_app_conn_table[count].conn_state == Connected)
- {
- aep_app_conn_table[count].conn_state = InUse;
- *phConnection = aep_app_conn_table[count].conn_hndl;
- goto end;
- }
- }
- /*If no connections available, we're going to have to try
- to open a new one*/
- for (count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
- {
- if (aep_app_conn_table[count].conn_state == NotConnected)
- {
- /*Open a connection*/
- rv = p_AEP_OpenConnection(phConnection);
- if (rv != AEP_R_OK)
- {
- AEPHKerr(AEPHK_F_AEP_GET_CONNECTION,AEPHK_R_UNIT_FAILURE);
- goto end;
- }
- aep_app_conn_table[count].conn_state = InUse;
- aep_app_conn_table[count].conn_hndl = *phConnection;
- goto end;
- }
- }
- rv = AEP_R_GENERAL_ERROR;
- end:
- CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
- return rv;
- }
- static AEP_RV aep_return_connection(AEP_CONNECTION_HNDL hConnection)
- {
- int count;
- CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
- /*Find the connection item that matches this connection handle*/
- for(count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
- {
- if (aep_app_conn_table[count].conn_hndl == hConnection)
- {
- aep_app_conn_table[count].conn_state = Connected;
- break;
- }
- }
- CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
- return AEP_R_OK;
- }
- static AEP_RV aep_close_connection(AEP_CONNECTION_HNDL hConnection)
- {
- int count;
- AEP_RV rv = AEP_R_OK;
- CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
- /*Find the connection item that matches this connection handle*/
- for(count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
- {
- if (aep_app_conn_table[count].conn_hndl == hConnection)
- {
- rv = p_AEP_CloseConnection(aep_app_conn_table[count].conn_hndl);
- if (rv != AEP_R_OK)
- goto end;
- aep_app_conn_table[count].conn_state = NotConnected;
- aep_app_conn_table[count].conn_hndl = 0;
- break;
- }
- }
- end:
- CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
- return rv;
- }
- static AEP_RV aep_close_all_connections(int use_engine_lock, int *in_use)
- {
- int count;
- AEP_RV rv = AEP_R_OK;
- *in_use = 0;
- if (use_engine_lock) CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
- for (count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
- {
- switch (aep_app_conn_table[count].conn_state)
- {
- case Connected:
- rv = p_AEP_CloseConnection(aep_app_conn_table[count].conn_hndl);
- if (rv != AEP_R_OK)
- goto end;
- aep_app_conn_table[count].conn_state = NotConnected;
- aep_app_conn_table[count].conn_hndl = 0;
- break;
- case InUse:
- (*in_use)++;
- break;
- case NotConnected:
- break;
- }
- }
- end:
- if (use_engine_lock) CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
- return rv;
- }
- /*BigNum call back functions, used to convert OpenSSL bignums into AEP bignums.
- Note only 32bit Openssl build support*/
- static AEP_RV GetBigNumSize(AEP_VOID_PTR ArbBigNum, AEP_U32* BigNumSize)
- {
- BIGNUM* bn;
- /*Cast the ArbBigNum pointer to our BIGNUM struct*/
- bn = (BIGNUM*) ArbBigNum;
- #ifdef SIXTY_FOUR_BIT_LONG
- *BigNumSize = bn->top << 3;
- #else
- /*Size of the bignum in bytes is equal to the bn->top (no of 32 bit
- words) multiplies by 4*/
- *BigNumSize = bn->top << 2;
- #endif
- return AEP_R_OK;
- }
- static AEP_RV MakeAEPBigNum(AEP_VOID_PTR ArbBigNum, AEP_U32 BigNumSize,
- unsigned char* AEP_BigNum)
- {
- BIGNUM* bn;
- #ifndef SIXTY_FOUR_BIT_LONG
- unsigned char* buf;
- int i;
- #endif
- /*Cast the ArbBigNum pointer to our BIGNUM struct*/
- bn = (BIGNUM*) ArbBigNum;
- #ifdef SIXTY_FOUR_BIT_LONG
- memcpy(AEP_BigNum, bn->d, BigNumSize);
- #else
- /*Must copy data into a (monotone) least significant byte first format
- performing endian conversion if necessary*/
- for(i=0;i<bn->top;i++)
- {
- buf = (unsigned char*)&bn->d[i];
- *((AEP_U32*)AEP_BigNum) = (AEP_U32)
- ((unsigned) buf[1] << 8 | buf[0]) |
- ((unsigned) buf[3] << 8 | buf[2]) << 16;
- AEP_BigNum += 4;
- }
- #endif
- return AEP_R_OK;
- }
- /*Turn an AEP Big Num back to a user big num*/
- static AEP_RV ConvertAEPBigNum(void* ArbBigNum, AEP_U32 BigNumSize,
- unsigned char* AEP_BigNum)
- {
- BIGNUM* bn;
- #ifndef SIXTY_FOUR_BIT_LONG
- int i;
- #endif
- bn = (BIGNUM*)ArbBigNum;
- /*Expand the result bn so that it can hold our big num.
- Size is in bits*/
- bn_expand(bn, (int)(BigNumSize << 3));
- #ifdef SIXTY_FOUR_BIT_LONG
- bn->top = BigNumSize >> 3;
-
- if((BigNumSize & 7) != 0)
- bn->top++;
- memset(bn->d, 0, bn->top << 3);
- memcpy(bn->d, AEP_BigNum, BigNumSize);
- #else
- bn->top = BigNumSize >> 2;
-
- for(i=0;i<bn->top;i++)
- {
- bn->d[i] = (AEP_U32)
- ((unsigned) AEP_BigNum[3] << 8 | AEP_BigNum[2]) << 16 |
- ((unsigned) AEP_BigNum[1] << 8 | AEP_BigNum[0]);
- AEP_BigNum += 4;
- }
- #endif
- return AEP_R_OK;
- }
-
- #endif /* !OPENSSL_NO_HW_AEP */
- #endif /* !OPENSSL_NO_HW */