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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:24:08 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:24:08 +0000
commitf449f278dd3c70e479a035f50a9bb817a9b433ba (patch)
tree8ca2bfb785dda9bb4d573acdf9b42aea9cd51383 /src/libdnssec/p11/p11.c
parentInitial commit. (diff)
downloadknot-f449f278dd3c70e479a035f50a9bb817a9b433ba.tar.xz
knot-f449f278dd3c70e479a035f50a9bb817a9b433ba.zip
Adding upstream version 3.2.6.upstream/3.2.6upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/libdnssec/p11/p11.c')
-rw-r--r--src/libdnssec/p11/p11.c113
1 files changed, 113 insertions, 0 deletions
diff --git a/src/libdnssec/p11/p11.c b/src/libdnssec/p11/p11.c
new file mode 100644
index 0000000..c3af544
--- /dev/null
+++ b/src/libdnssec/p11/p11.c
@@ -0,0 +1,113 @@
+/* Copyright (C) 2018 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <assert.h>
+#include <gnutls/pkcs11.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "libdnssec/p11/p11.h"
+#include "libdnssec/error.h"
+
+#ifdef ENABLE_PKCS11
+
+#define PKCS11_MODULES_MAX 16
+
+static char *pkcs11_modules[PKCS11_MODULES_MAX] = { 0 };
+static int pkcs11_modules_count = 0;
+
+static int map_result(int gnutls_result)
+{
+ return gnutls_result == GNUTLS_E_SUCCESS ? DNSSEC_EOK : DNSSEC_ERROR;
+}
+
+int p11_init(void)
+{
+ int r = gnutls_pkcs11_init(GNUTLS_PKCS11_FLAG_MANUAL, NULL);
+ return map_result(r);
+}
+
+int p11_reinit(void)
+{
+ int r = gnutls_pkcs11_reinit();
+ return map_result(r);
+}
+
+int p11_load_module(const char *module)
+{
+ for (int i = 0; i < pkcs11_modules_count; i++) {
+ if (strcmp(pkcs11_modules[i], module) == 0) {
+ return DNSSEC_EOK;
+ }
+ }
+
+ assert(pkcs11_modules_count <= PKCS11_MODULES_MAX);
+ if (pkcs11_modules_count == PKCS11_MODULES_MAX) {
+ return DNSSEC_P11_TOO_MANY_MODULES;
+ }
+
+ char *copy = strdup(module);
+ if (!copy) {
+ return DNSSEC_ENOMEM;
+ }
+
+ int r = gnutls_pkcs11_add_provider(module, NULL);
+ if (r != GNUTLS_E_SUCCESS) {
+ free(copy);
+ return DNSSEC_P11_FAILED_TO_LOAD_MODULE;
+ }
+
+ pkcs11_modules[pkcs11_modules_count] = copy;
+ pkcs11_modules_count += 1;
+
+ return DNSSEC_EOK;
+}
+
+void p11_cleanup(void)
+{
+ for (int i = 0; i < pkcs11_modules_count; i++) {
+ free(pkcs11_modules[i]);
+ pkcs11_modules[i] = NULL;
+ }
+
+ pkcs11_modules_count = 0;
+
+ gnutls_pkcs11_deinit();
+}
+
+#else
+
+int p11_init(void)
+{
+ return DNSSEC_EOK;
+}
+
+int p11_reinit(void)
+{
+ return DNSSEC_EOK;
+}
+
+int p11_load_module(const char *module)
+{
+ return DNSSEC_NOT_IMPLEMENTED_ERROR;
+}
+
+void p11_cleanup(void)
+{
+ // this function intentionally left blank
+}
+
+#endif