Additional comment changes for reformat of 1.0.1
[openssl.git] / engines / e_capi.c
index fd7f13ca2cfc5ffbd949a9a316ce0419dc774618..c1085b56cdabc46d0b46eef62481cab50500be46 100644 (file)
 
 #include <wincrypt.h>
 
+/*
+ * This module uses several "new" interfaces, among which is
+ * CertGetCertificateContextProperty. CERT_KEY_PROV_INFO_PROP_ID is
+ * one of possible values you can pass to function in question. By
+ * checking if it's defined we can see if wincrypt.h and accompanying
+ * crypt32.lib are in shape. The native MingW32 headers up to and
+ * including __W32API_VERSION 3.14 lack of struct DSSPUBKEY and the
+ * defines CERT_STORE_PROV_SYSTEM_A and CERT_STORE_READONLY_FLAG,
+ * so we check for these too and avoid compiling.
+ * Yes, it's rather "weak" test and if compilation fails,
+ * then re-configure with -DOPENSSL_NO_CAPIENG.
+ */
+#if defined(CERT_KEY_PROV_INFO_PROP_ID) && \
+    defined(CERT_STORE_PROV_SYSTEM_A) && \
+    defined(CERT_STORE_READONLY_FLAG)
+# define __COMPILE_CAPIENG
+#endif /* CERT_KEY_PROV_INFO_PROP_ID */
+#endif /* OPENSSL_NO_CAPIENG */
+#endif /* OPENSSL_SYS_WIN32 */
+
+#ifdef __COMPILE_CAPIENG
+
 #undef X509_EXTENSIONS
 #undef X509_CERT_PAIR
 
 #define CERT_STORE_CREATE_NEW_FLAG                      0x00002000
 #endif
 
+#ifndef CERT_SYSTEM_STORE_CURRENT_USER
+#define CERT_SYSTEM_STORE_CURRENT_USER                 0x00010000
+#endif 
+
 #include <openssl/engine.h>
 #include <openssl/pem.h>
 #include <openssl/x509v3.h>
@@ -416,28 +442,36 @@ static int capi_init(ENGINE *e)
        CAPI_CTX *ctx;
        const RSA_METHOD *ossl_rsa_meth;
        const DSA_METHOD *ossl_dsa_meth;
-       capi_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL, 0);
-       cert_capi_idx = X509_get_ex_new_index(0, NULL, NULL, NULL, 0);
+
+       if (capi_idx < 0)
+               {
+               capi_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL, 0);
+               if (capi_idx < 0)
+                       goto memerr;
+
+               cert_capi_idx = X509_get_ex_new_index(0, NULL, NULL, NULL, 0);
+
+               /* Setup RSA_METHOD */
+               rsa_capi_idx = RSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
+               ossl_rsa_meth = RSA_PKCS1_SSLeay();
+               capi_rsa_method.rsa_pub_enc = ossl_rsa_meth->rsa_pub_enc;
+               capi_rsa_method.rsa_pub_dec = ossl_rsa_meth->rsa_pub_dec;
+               capi_rsa_method.rsa_mod_exp = ossl_rsa_meth->rsa_mod_exp;
+               capi_rsa_method.bn_mod_exp = ossl_rsa_meth->bn_mod_exp;
+
+               /* Setup DSA Method */
+               dsa_capi_idx = DSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
+               ossl_dsa_meth = DSA_OpenSSL();
+               capi_dsa_method.dsa_do_verify = ossl_dsa_meth->dsa_do_verify;
+               capi_dsa_method.dsa_mod_exp = ossl_dsa_meth->dsa_mod_exp;
+               capi_dsa_method.bn_mod_exp = ossl_dsa_meth->bn_mod_exp;
+               }
 
        ctx = capi_ctx_new();
-       if (!ctx || (capi_idx < 0))
+       if (!ctx)
                goto memerr;
 
        ENGINE_set_ex_data(e, capi_idx, ctx);
-       /* Setup RSA_METHOD */
-       rsa_capi_idx = RSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
-       ossl_rsa_meth = RSA_PKCS1_SSLeay();
-       capi_rsa_method.rsa_pub_enc = ossl_rsa_meth->rsa_pub_enc;
-       capi_rsa_method.rsa_pub_dec = ossl_rsa_meth->rsa_pub_dec;
-       capi_rsa_method.rsa_mod_exp = ossl_rsa_meth->rsa_mod_exp;
-       capi_rsa_method.bn_mod_exp = ossl_rsa_meth->bn_mod_exp;
-
-       /* Setup DSA Method */
-       dsa_capi_idx = DSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
-       ossl_dsa_meth = DSA_OpenSSL();
-       capi_dsa_method.dsa_do_verify = ossl_dsa_meth->dsa_do_verify;
-       capi_dsa_method.dsa_mod_exp = ossl_dsa_meth->dsa_mod_exp;
-       capi_dsa_method.bn_mod_exp = ossl_dsa_meth->bn_mod_exp;
 
 #ifdef OPENSSL_CAPIENG_DIALOG
        {
@@ -496,6 +530,7 @@ static int bind_capi(ENGINE *e)
        {
        if (!ENGINE_set_id(e, engine_capi_id)
                || !ENGINE_set_name(e, engine_capi_name)
+               || !ENGINE_set_flags(e, ENGINE_FLAGS_NO_REGISTER_ALL)
                || !ENGINE_set_init_function(e, capi_init)
                || !ENGINE_set_finish_function(e, capi_finish)
                || !ENGINE_set_destroy_function(e, capi_destroy)
@@ -1129,6 +1164,7 @@ static int capi_list_containers(CAPI_CTX *ctx, BIO *out)
                {
                CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
                capi_addlasterror();
+               CryptReleaseContext(hprov, 0);
                return 0;
                }
        CAPI_trace(ctx, "Got max container len %d\n", buflen);
@@ -1396,10 +1432,13 @@ static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id, HCERTSTORE h
 static CAPI_KEY *capi_get_key(CAPI_CTX *ctx, const char *contname, char *provname, DWORD ptype, DWORD keyspec)
        {
        CAPI_KEY *key;
+    DWORD dwFlags = 0; 
        key = OPENSSL_malloc(sizeof(CAPI_KEY));
        CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n", 
                                                contname, provname, ptype);
-       if (!CryptAcquireContextA(&key->hprov, contname, provname, ptype, 0))
+    if(ctx->store_flags & CERT_SYSTEM_STORE_LOCAL_MACHINE)
+        dwFlags = CRYPT_MACHINE_KEYSET;
+    if (!CryptAcquireContextA(&key->hprov, contname, provname, ptype, dwFlags)) 
                {
                CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
                capi_addlasterror();
@@ -1546,6 +1585,8 @@ static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type, int che
                        }
                CryptReleaseContext(hprov, 0);
                }
+       if (ctx->cspname)
+               OPENSSL_free(ctx->cspname);
        ctx->cspname = BUF_strdup(pname);
        ctx->csptype = type;
        return 1;
@@ -1555,9 +1596,12 @@ static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx)
        {
        LPSTR pname;
        DWORD type;
+       int res;
        if (capi_get_provname(ctx, &pname, &type, idx) != 1)
                return 0;
-       return capi_ctx_set_provname(ctx, pname, type, 0);
+       res = capi_ctx_set_provname(ctx, pname, type, 0);
+       OPENSSL_free(pname);
+       return res;
        }
 
 static int cert_issuer_match(STACK_OF(X509_NAME) *ca_dn, X509 *x)
@@ -1784,12 +1828,15 @@ static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
        }
 #endif
 
-#endif
-#else /* !WIN32 */
+#else /* !__COMPILE_CAPIENG */
 #include <openssl/engine.h>
 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
 OPENSSL_EXPORT
+int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns);
+OPENSSL_EXPORT
 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns) { return 0; }
 IMPLEMENT_DYNAMIC_CHECK_FN()
+#else
+void ENGINE_load_capi(void){}
 #endif
 #endif