Some more tweaks to ENGINE code.
[openssl.git] / crypto / engine / hw_ncipher.c
index 792893a..dc645d5 100644 (file)
@@ -126,6 +126,26 @@ static int hwcrhk_get_pass(const char *prompt_info,
        HWCryptoHook_CallerContext *cactx);
 static void hwcrhk_log_message(void *logstr, const char *message);
 
+/* The definitions for control commands specific to this engine */
+#define HWCRHK_CMD_SO_PATH             ENGINE_CMD_BASE
+#define HWCRHK_CMD_FORK_CHECK          (ENGINE_CMD_BASE + 1)
+#define HWCRHK_CMD_THREAD_LOCKING      (ENGINE_CMD_BASE + 2)
+static const ENGINE_CMD_DEFN hwcrhk_cmd_defns[] = {
+       {HWCRHK_CMD_SO_PATH,
+               "SO_PATH",
+               "Specifies the path to the 'hwcrhk' shared library",
+               ENGINE_CMD_FLAG_STRING},
+       {HWCRHK_CMD_FORK_CHECK,
+               "FORK_CHECK",
+               "Turns fork() checking on or off (boolean)",
+               ENGINE_CMD_FLAG_NUMERIC},
+       {HWCRHK_CMD_THREAD_LOCKING,
+               "THREAD_LOCKING",
+               "Turns thread-safe locking on or off (boolean)",
+               ENGINE_CMD_FLAG_NUMERIC},
+       {0, NULL, NULL, 0}
+       };
+
 /* Our internal RSA_METHOD that we provide pointers to */
 static RSA_METHOD hwcrhk_rsa =
        {
@@ -289,7 +309,8 @@ ENGINE *ENGINE_ncipher()
                        !ENGINE_set_finish_function(ret, hwcrhk_finish) ||
                        !ENGINE_set_ctrl_function(ret, hwcrhk_ctrl) ||
                        !ENGINE_set_load_privkey_function(ret, hwcrhk_load_privkey) ||
-                       !ENGINE_set_load_pubkey_function(ret, hwcrhk_load_pubkey))
+                       !ENGINE_set_load_pubkey_function(ret, hwcrhk_load_pubkey) ||
+                       !ENGINE_set_cmd_defns(ret, hwcrhk_cmd_defns))
                {
                ENGINE_free(ret);
                return NULL;
@@ -337,7 +358,8 @@ static HWCryptoHook_RSAUnloadKey_t *p_hwcrhk_RSAUnloadKey = NULL;
 static HWCryptoHook_ModExpCRT_t *p_hwcrhk_ModExpCRT = NULL;
 
 /* Used in the DSO operations. */
-static const char *HWCRHK_LIBNAME = "nfhwcrhk";
+static const char def_HWCRHK_LIBNAME[] = "nfhwcrhk";
+static const char *HWCRHK_LIBNAME = def_HWCRHK_LIBNAME;
 static const char *n_hwcrhk_Init = "HWCryptoHook_Init";
 static const char *n_hwcrhk_Finish = "HWCryptoHook_Finish";
 static const char *n_hwcrhk_ModExp = "HWCryptoHook_ModExp";
@@ -513,6 +535,19 @@ static int hwcrhk_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)())
 
        switch(cmd)
                {
+       case HWCRHK_CMD_SO_PATH:
+               if(hwcrhk_dso)
+                       {
+                       ENGINEerr(ENGINE_F_HWCRHK_CTRL,ENGINE_R_ALREADY_LOADED);
+                       return 0;
+                       }
+               if(p == NULL)
+                       {
+                       ENGINEerr(ENGINE_F_HWCRHK_CTRL,ERR_R_PASSED_NULL_PARAMETER);
+                       return 0;
+                       }
+               HWCRHK_LIBNAME = (const char *)p;
+               return 1;
        case ENGINE_CTRL_SET_LOGSTREAM:
                {
                BIO *bio = (BIO *)p;
@@ -538,6 +573,7 @@ static int hwcrhk_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)())
        /* this enables or disables the "SimpleForkCheck" flag used in the
         * initialisation structure. */
        case ENGINE_CTRL_CHIL_SET_FORKCHECK:
+       case HWCRHK_CMD_FORK_CHECK:
                CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
                if(i)
                        hwcrhk_globals.flags |=
@@ -557,6 +593,11 @@ static int hwcrhk_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)())
                disable_mutex_callbacks = 1;
                CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
                break;
+       case HWCRHK_CMD_THREAD_LOCKING:
+               CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
+               disable_mutex_callbacks = ((i == 0) ? 0 : 1);
+               CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
+               break;
 
        /* The command isn't understood by this engine */
        default: