Imported Upstream version 4.6.2

daemons/ipa-slapi-plugins/ipa-pwd-extop/otpctrl.c

@@ -0,0 +1,107 @@
+/** BEGIN COPYRIGHT BLOCK
+ * 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 <http://www.gnu.org/licenses/>.
+ *
+ * Additional permission under GPLv3 section 7:
+ *
+ * In the following paragraph, "GPL" means the GNU General Public
+ * License, version 3 or any later version, and "Non-GPL Code" means
+ * code that is governed neither by the GPL nor a license
+ * compatible with the GPL.
+ *
+ * You may link the code of this Program with Non-GPL Code and convey
+ * linked combinations including the two, provided that such Non-GPL
+ * Code only links to the code of this Program through those well
+ * defined interfaces identified in the file named EXCEPTION found in
+ * the source code files (the "Approved Interfaces"). The files of
+ * Non-GPL Code may instantiate templates or use macros or inline
+ * functions from the Approved Interfaces without causing the resulting
+ * work to be covered by the GPL. Only the copyright holders of this
+ * Program may make changes or additions to the list of Approved
+ * Interfaces.
+ *
+ * Authors:
+ * Nathaniel McCallum <npmccallum@redhat.com>
+ *
+ * Copyright (C) 2013 Red Hat, Inc.
+ * All rights reserved.
+ * END COPYRIGHT BLOCK **/
+
+#include "../libotp/otp_token.h"
+#include "otpctrl.h"
+
+bool otpctrl_present(Slapi_PBlock *pb, const char *oid)
+{
+    LDAPControl **controls = NULL;
+
+    if (slapi_pblock_get(pb, SLAPI_REQCONTROLS, &controls) != 0)
+        return false;
+
+    return ldap_control_find(oid, controls, NULL) != NULL;
+}
+
+bool otpctrl_sync_handle(const struct otp_config *cfg, Slapi_PBlock *pb,
+                         const char *user_dn)
+{
+    struct otp_token **tokens = NULL;
+    LDAPControl **controls = NULL;
+    struct berval *second = NULL;
+    struct berval *first = NULL;
+    BerElement *ber = NULL;
+    char *token_dn = NULL;
+    bool success;
+
+    if (slapi_pblock_get(pb, SLAPI_REQCONTROLS, &controls) != 0)
+        return false;
+
+    if (controls == NULL || controls[0] == NULL)
+        return false;
+
+    for (int i = 0; controls[i] != NULL; i++) {
+        if (strcmp(controls[i]->ldctl_oid, OTP_SYNC_REQUEST_OID) != 0)
+            continue;
+
+        /* Decode the request. */
+        ber = ber_init(&controls[i]->ldctl_value);
+        if (ber == NULL)
+            return false;
+
+        /* Decode the token codes. */
+        if (ber_scanf(ber, "{OO", &first, &second) == LBER_ERROR) {
+            ber_free(ber, 1);
+            return false;
+        }
+
+        /* Decode the optional token DN. */
+        (void)ber_scanf(ber, "a", &token_dn);
+
+        /* Process the synchronization. */
+        success = false;
+        if (ber_scanf(ber, "}") != LBER_ERROR) {
+            tokens = otp_token_find(cfg, user_dn, token_dn, true, NULL);
+            if (tokens != NULL) {
+                success = otp_token_validate_berval(tokens, first, second);
+                otp_token_free_array(tokens);
+            }
+        }
+
+        ber_memfree(token_dn); token_dn = NULL;
+        ber_bvfree(second);
+        ber_bvfree(first);
+        ber_free(ber, 1);
+        if (!success)
+            return false;
+    }
+
+    return true;
+}