diff options
Diffstat (limited to 'openssl/engines/e_aep.c')
| -rw-r--r-- | openssl/engines/e_aep.c | 1144 |
1 files changed, 1144 insertions, 0 deletions
diff --git a/openssl/engines/e_aep.c b/openssl/engines/e_aep.c new file mode 100644 index 000000000..e24e4b424 --- /dev/null +++ b/openssl/engines/e_aep.c @@ -0,0 +1,1144 @@ +/* ==================================================================== + * 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 + +#if defined(OPENSSL_SYS_NETWARE) && defined(NETWARE_CLIB) +#define getpid GetThreadID +extern int GetThreadID(void); +#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); + +#ifdef NETWARE_CLIB + curr_pid = GetThreadID(); +#elif defined(_WIN32) + curr_pid = _getpid(); +#else + curr_pid = getpid(); +#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 */ |