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Updated AEP engine, submitted by Diarmuid O'Neill <Diarmuid.ONeill@aep.ie>

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This commit is contained in:
Richard Levitte 2002-02-28 11:36:38 +00:00
parent 0d22b5dace
commit 5c62f68e14
3 changed files with 51 additions and 7 deletions
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56
crypto/engine/hw_aep.c
View File

@ -81,6 +81,8 @@ typedef int pid_t;
#endif
#define AEP_LIB_NAME "aep engine"
#define FAIL_TO_SW 0x10101010
#include "hw_aep_err.c"
static int aep_init(ENGINE *e);
@ -233,6 +235,8 @@ static AEP_U32 rand_block_bytes = 0;
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 */
@ -557,15 +561,25 @@ 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);
goto err;
return BN_mod_exp(r, a, p, m, ctx);
}
/*To the card with the mod exp*/
@ -574,8 +588,8 @@ static int aep_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
if (rv != AEP_R_OK)
{
AEPHKerr(AEPHK_F_AEP_MOD_EXP,AEPHK_R_MOD_EXP_FAILED);
rv = aep_return_connection(hConnection);
goto err;
rv = aep_close_connection(hConnection);
return BN_mod_exp(r, a, p, m, ctx);
}
/*Return the connection to the pool*/
@ -603,7 +617,7 @@ static AEP_RV aep_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
if (rv != AEP_R_OK)
{
AEPHKerr(AEPHK_F_AEP_MOD_EXP_CRT,AEPHK_R_GET_HANDLE_FAILED);
goto err;
return FAIL_TO_SW;
}
/*To the card with the mod exp*/
@ -612,8 +626,8 @@ static AEP_RV aep_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
if (rv != AEP_R_OK)
{
AEPHKerr(AEPHK_F_AEP_MOD_EXP_CRT,AEPHK_R_MOD_EXP_CRT_FAILED);
rv = aep_return_connection(hConnection);
goto err;
rv = aep_close_connection(hConnection);
return FAIL_TO_SW;
}
/*Return the connection to the pool*/
@ -730,7 +744,13 @@ static int aep_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa)
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 != AEP_R_OK)
if (rv == FAIL_TO_SW){
const RSA_METHOD *meth = RSA_PKCS1_SSLeay();
to_return = (*meth->rsa_mod_exp)(r0, I, rsa);
goto err;
}
else if (rv != AEP_R_OK)
goto err;
}
else
@ -930,6 +950,28 @@ static AEP_RV aep_return_connection(AEP_CONNECTION_HNDL hConnection)
return AEP_R_OK;
}
static int aep_close_connection(unsigned int 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 = NotConnected;
close(aep_app_conn_table[count].conn_hndl);
break;
}
}
CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
return AEP_R_OK;
}
static AEP_RV aep_close_all_connections(int use_engine_lock, int *in_use)
{
int count;

1
crypto/engine/hw_aep_err.c
View File

@ -94,6 +94,7 @@ static ERR_STRING_DATA AEPHK_str_reasons[]=
{AEPHK_R_OK ,"ok"},
{AEPHK_R_RETURN_CONNECTION_FAILED ,"return connection failed"},
{AEPHK_R_SETBNCALLBACK_FAILURE ,"setbncallback failure"},
{AEPHK_R_SIZE_TOO_LARGE_OR_TOO_SMALL ,"size too large or too small"},
{AEPHK_R_UNIT_FAILURE ,"unit failure"},
{0,NULL}
};

1
crypto/engine/hw_aep_err.h
View File

@ -92,6 +92,7 @@ static void ERR_AEPHK_error(int function, int reason, char *file, int line);
#define AEPHK_R_OK 112
#define AEPHK_R_RETURN_CONNECTION_FAILED 113
#define AEPHK_R_SETBNCALLBACK_FAILURE 114
#define AEPHK_R_SIZE_TOO_LARGE_OR_TOO_SMALL 116
#define AEPHK_R_UNIT_FAILURE 115
#ifdef __cplusplus