1 /**********************************************************************
3 * Copyright (c) 2005-2006 Cryptocom LTD *
4 * This file is distributed under the same license as OpenSSL *
6 * Implementation of control commands for GOST engine *
7 * OpenSSL 0.9.9 libraries required *
8 **********************************************************************/
11 #include <openssl/crypto.h>
12 #include <openssl/err.h>
13 #include <openssl/engine.h>
14 #include <openssl/buffer.h>
17 static char *gost_params[GOST_PARAM_MAX + 1] = { NULL };
18 static const char *gost_envnames[] = { "CRYPT_PARAMS", "GOST_PBE_HMAC", "GOST_PK_FORMAT" };
20 const ENGINE_CMD_DEFN gost_cmds[] = {
21 {GOST_CTRL_CRYPT_PARAMS,
23 "OID of default GOST 28147-89 parameters",
24 ENGINE_CMD_FLAG_STRING},
25 {GOST_CTRL_PBE_PARAMS,
27 "Shortname of default digest alg for PBE",
28 ENGINE_CMD_FLAG_STRING},
31 "Private key format params",
32 ENGINE_CMD_FLAG_STRING},
36 void gost_param_free()
40 for (i = 0; i <= GOST_PARAM_MAX; i++) {
41 OPENSSL_free(gost_params[i]);
42 gost_params[i] = NULL;
47 int gost_control_func(ENGINE *e, int cmd, long i, void *p, void (*f) (void))
49 int param = cmd - ENGINE_CMD_BASE;
51 if (param < 0 || param > GOST_PARAM_MAX) {
54 ret = gost_set_default_param(param, p);
58 const char *get_gost_engine_param(int param)
61 if (param < 0 || param > GOST_PARAM_MAX)
63 if (gost_params[param] != NULL) {
64 return gost_params[param];
66 tmp = getenv(gost_envnames[param]);
68 OPENSSL_free(gost_params[param]);
69 gost_params[param] = BUF_strdup(tmp);
70 return gost_params[param];
75 int gost_set_default_param(int param, const char *value)
78 if (param < 0 || param > GOST_PARAM_MAX)
80 tmp = getenv(gost_envnames[param]);
83 * if there is value in the environment, use it, else -passed string *
88 OPENSSL_free(gost_params[param]);
89 gost_params[param] = BUF_strdup(tmp);