provider: add an 'is_running' call to all providers.

It can be accessed (read only) via the status parameter.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/12801)

providers/baseprov.c

@@ -38,6 +38,7 @@ static const OSSL_PARAM base_param_types[] = {
     OSSL_PARAM_DEFN(OSSL_PROV_PARAM_NAME, OSSL_PARAM_UTF8_PTR, NULL, 0),
     OSSL_PARAM_DEFN(OSSL_PROV_PARAM_VERSION, OSSL_PARAM_UTF8_PTR, NULL, 0),
     OSSL_PARAM_DEFN(OSSL_PROV_PARAM_BUILDINFO, OSSL_PARAM_UTF8_PTR, NULL, 0),
+    OSSL_PARAM_DEFN(OSSL_PROV_PARAM_STATUS, OSSL_PARAM_INTEGER, NULL, 0),
     OSSL_PARAM_END
 };
 
@@ -60,6 +61,9 @@ static int base_get_params(void *provctx, OSSL_PARAM params[])
     p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_BUILDINFO);
     if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, OPENSSL_FULL_VERSION_STR))
         return 0;
+    p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_STATUS);
+    if (p != NULL && !OSSL_PARAM_set_int(p, ossl_prov_is_running()))
+        return 0;
 
     return 1;
 }

providers/build.info

@@ -188,6 +188,6 @@ ENDIF
 # Because the null provider is built in, it means that libcrypto must
 # include all the object files that are needed.
 $NULLGOAL=../libcrypto
-SOURCE[$NULLGOAL]=nullprov.c
-
+SOURCE[$NULLGOAL]=nullprov.c prov_running.c
 
+SOURCE[$LIBNONFIPS]=prov_running.c

providers/common/include/prov/providercommon.h

@@ -18,3 +18,5 @@ int cipher_capable_aes_cbc_hmac_sha1(void);
 int cipher_capable_aes_cbc_hmac_sha256(void);
 
 OSSL_FUNC_provider_get_capabilities_fn provider_get_capabilities;
+
+int ossl_prov_is_running(void);

providers/defltprov.c

@@ -41,6 +41,7 @@ static const OSSL_PARAM deflt_param_types[] = {
     OSSL_PARAM_DEFN(OSSL_PROV_PARAM_NAME, OSSL_PARAM_UTF8_PTR, NULL, 0),
     OSSL_PARAM_DEFN(OSSL_PROV_PARAM_VERSION, OSSL_PARAM_UTF8_PTR, NULL, 0),
     OSSL_PARAM_DEFN(OSSL_PROV_PARAM_BUILDINFO, OSSL_PARAM_UTF8_PTR, NULL, 0),
+    OSSL_PARAM_DEFN(OSSL_PROV_PARAM_STATUS, OSSL_PARAM_INTEGER, NULL, 0),
     OSSL_PARAM_END
 };
 
@@ -63,7 +64,7 @@ static int deflt_get_params(void *provctx, OSSL_PARAM params[])
     if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, OPENSSL_FULL_VERSION_STR))
         return 0;
     p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_STATUS);
-    if (p != NULL && !OSSL_PARAM_set_uint(p, 1))
+    if (p != NULL && !OSSL_PARAM_set_int(p, ossl_prov_is_running()))
         return 0;
     return 1;
 }

providers/legacyprov.c

@@ -15,6 +15,7 @@
 #include <openssl/params.h>
 #include "prov/provider_ctx.h"
 #include "prov/implementations.h"
+#include "prov/providercommon.h"
 
 /*
  * Forward declarations to ensure that interface functions are correctly
@@ -40,6 +41,7 @@ static const OSSL_PARAM legacy_param_types[] = {
     OSSL_PARAM_DEFN(OSSL_PROV_PARAM_NAME, OSSL_PARAM_UTF8_PTR, NULL, 0),
     OSSL_PARAM_DEFN(OSSL_PROV_PARAM_VERSION, OSSL_PARAM_UTF8_PTR, NULL, 0),
     OSSL_PARAM_DEFN(OSSL_PROV_PARAM_BUILDINFO, OSSL_PARAM_UTF8_PTR, NULL, 0),
+    OSSL_PARAM_DEFN(OSSL_PROV_PARAM_STATUS, OSSL_PARAM_INTEGER, NULL, 0),
     OSSL_PARAM_END
 };
 
@@ -62,7 +64,7 @@ static int legacy_get_params(void *provctx, OSSL_PARAM params[])
     if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, OPENSSL_FULL_VERSION_STR))
         return 0;
     p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_STATUS);
-    if (p != NULL && !OSSL_PARAM_set_uint(p, 1))
+    if (p != NULL && !OSSL_PARAM_set_int(p, ossl_prov_is_running()))
         return 0;
     return 1;
 }

providers/nullprov.c

@@ -14,6 +14,7 @@
 #include <openssl/core_names.h>
 #include <openssl/params.h>
 #include "prov/implementations.h"
+#include "prov/providercommon.h"
 
 OSSL_provider_init_fn ossl_null_provider_init;
 
@@ -22,6 +23,7 @@ static const OSSL_ITEM null_param_types[] = {
     { OSSL_PARAM_UTF8_PTR, OSSL_PROV_PARAM_NAME },
     { OSSL_PARAM_UTF8_PTR, OSSL_PROV_PARAM_VERSION },
     { OSSL_PARAM_UTF8_PTR, OSSL_PROV_PARAM_BUILDINFO },
+    { OSSL_PARAM_INTEGER, OSSL_PROV_PARAM_STATUS },
     { 0, NULL }
 };
 
@@ -30,7 +32,7 @@ static const OSSL_ITEM *null_gettable_params(const OSSL_PROVIDER *prov)
     return null_param_types;
 }
 
-static int null_get_params(const OSSL_PROVIDER *prov, OSSL_PARAM params[])
+static int null_get_params(const OSSL_PROVIDER *provctx, OSSL_PARAM params[])
 {
     OSSL_PARAM *p;
 
@@ -43,7 +45,9 @@ static int null_get_params(const OSSL_PROVIDER *prov, OSSL_PARAM params[])
     p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_BUILDINFO);
     if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, OPENSSL_FULL_VERSION_STR))
         return 0;
-
+    p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_STATUS);
+    if (p != NULL && !OSSL_PARAM_set_int(p, ossl_prov_is_running()))
+        return 0;
     return 1;
 }
 

providers/prov_running.c

@@ -0,0 +1,16 @@
+/*
+ * Copyright 2020 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <openssl/e_os2.h>
+#include "prov/providercommon.h"
+
+int ossl_prov_is_running(void)
+{
+    return 1;
+}