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[] =
19 { "CRYPT_PARAMS", "GOST_PBE_HMAC", "GOST_PK_FORMAT" };
21 const ENGINE_CMD_DEFN gost_cmds[] = {
22 {GOST_CTRL_CRYPT_PARAMS,
24 "OID of default GOST 28147-89 parameters",
25 ENGINE_CMD_FLAG_STRING},
26 {GOST_CTRL_PBE_PARAMS,
28 "Shortname of default digest alg for PBE",
29 ENGINE_CMD_FLAG_STRING},
32 "Private key format params",
33 ENGINE_CMD_FLAG_STRING},
37 void gost_param_free()
41 for (i = 0; i <= GOST_PARAM_MAX; i++) {
42 OPENSSL_free(gost_params[i]);
43 gost_params[i] = NULL;
48 int gost_control_func(ENGINE *e, int cmd, long i, void *p, void (*f) (void))
50 int param = cmd - ENGINE_CMD_BASE;
52 if (param < 0 || param > GOST_PARAM_MAX) {
55 ret = gost_set_default_param(param, p);
59 const char *get_gost_engine_param(int param)
62 if (param < 0 || param > GOST_PARAM_MAX)
64 if (gost_params[param] != NULL) {
65 return gost_params[param];
67 tmp = getenv(gost_envnames[param]);
69 OPENSSL_free(gost_params[param]);
70 gost_params[param] = BUF_strdup(tmp);
71 return gost_params[param];
76 int gost_set_default_param(int param, const char *value)
79 if (param < 0 || param > GOST_PARAM_MAX)
81 tmp = getenv(gost_envnames[param]);
84 * if there is value in the environment, use it, else -passed string *
89 OPENSSL_free(gost_params[param]);
90 gost_params[param] = BUF_strdup(tmp);