Imported Upstream version 4.6.2

daemons/ipa-slapi-plugins/ipa-extdom-extop/ipa_extdom_extop.c

@@ -0,0 +1,275 @@
+/** 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:
+ * Sumit Bose <sbose@redhat.com>
+ *
+ * Copyright (C) 2011 Red Hat, Inc.
+ * All rights reserved.
+ * END COPYRIGHT BLOCK **/
+
+#include "ipa_extdom.h"
+#include "back_extdom.h"
+#include "util.h"
+
+#define DEFAULT_MAX_NSS_BUFFER (128*1024*1024)
+#define DEFAULT_MAX_NSS_TIMEOUT (10*1000)
+
+Slapi_PluginDesc ipa_extdom_plugin_desc = {
+    IPA_EXTDOM_FEATURE_DESC,
+    "FreeIPA project",
+    "FreeIPA/1.0",
+    IPA_EXTDOM_PLUGIN_DESC
+};
+
+static char *ipa_extdom_oid_list[] = {
+    EXOP_EXTDOM_OID,
+    EXOP_EXTDOM_V1_OID,
+    NULL
+};
+
+static char *ipa_extdom_name_list[] = {
+    IPA_EXTDOM_PLUGIN_DESC,
+    NULL
+};
+
+static int ipa_extdom_start(Slapi_PBlock *pb)
+{
+    return LDAP_SUCCESS;
+}
+
+static int ipa_extdom_extop(Slapi_PBlock *pb)
+{
+    char *oid = NULL;
+    char *err_msg = NULL;
+    int rc;
+    int ret;
+    struct berval *req_val = NULL;
+    struct berval *ret_val = NULL;
+    struct extdom_req *req = NULL;
+    struct ipa_extdom_ctx *ctx;
+    enum extdom_version version;
+
+    ret = slapi_pblock_get(pb, SLAPI_EXT_OP_REQ_OID, &oid);
+    if (ret != 0) {
+        rc = LDAP_OPERATIONS_ERROR;
+        err_msg = "Could not get OID value from request.\n";
+        goto done;
+    }
+    LOG("Received extended operation request with OID %s\n", oid);
+
+    if (strcasecmp(oid, EXOP_EXTDOM_OID) == 0) {
+        version = EXTDOM_V0;
+    } else if (strcasecmp(oid, EXOP_EXTDOM_V1_OID) == 0) {
+        version = EXTDOM_V1;
+    } else {
+        return SLAPI_PLUGIN_EXTENDED_NOT_HANDLED;
+    }
+
+    ret = slapi_pblock_get(pb, SLAPI_EXT_OP_REQ_VALUE, &req_val);
+    if (ret != 0) {
+        rc = LDAP_UNWILLING_TO_PERFORM;
+        err_msg = "Missing request data.\n";
+        goto done;
+    }
+
+    ret = slapi_pblock_get(pb, SLAPI_PLUGIN_PRIVATE, &ctx);
+    if (ret != 0) {
+        rc = LDAP_OPERATIONS_ERROR;
+        err_msg = "Missing plugin context.\n";
+        goto done;
+    }
+
+    ret = parse_request_data(req_val, &req);
+    if (ret != LDAP_SUCCESS) {
+        rc = LDAP_UNWILLING_TO_PERFORM;
+        err_msg = "Cannot parse request data.\n";
+        goto done;
+    }
+
+    ret = check_request(req, version);
+    if (ret != LDAP_SUCCESS) {
+        rc = LDAP_UNWILLING_TO_PERFORM;
+        err_msg = "Error in request data.\n";
+        goto done;
+    }
+
+    ret = handle_request(ctx, req, &ret_val);
+    if (ret != LDAP_SUCCESS) {
+        if (ret == LDAP_NO_SUCH_OBJECT) {
+            rc = LDAP_NO_SUCH_OBJECT;
+        } else {
+            rc = LDAP_OPERATIONS_ERROR;
+            err_msg = "Failed to handle the request.\n";
+        }
+        goto done;
+    }
+
+    ret = slapi_pblock_set(pb, SLAPI_EXT_OP_RET_OID, oid);
+    if (ret != 0) {
+        rc = LDAP_OPERATIONS_ERROR;
+        err_msg = "Failed to set the OID for the response.\n";
+        goto done;
+    }
+
+    ret = slapi_pblock_set( pb, SLAPI_EXT_OP_RET_VALUE, ret_val);
+    if (ret != 0) {
+        rc = LDAP_OPERATIONS_ERROR;
+        err_msg = "Failed to set the value for the response.\n";
+        goto done;
+    }
+
+    rc = LDAP_SUCCESS;
+
+done:
+    if ((req != NULL) && (req->err_msg != NULL)) {
+        err_msg = req->err_msg;
+    }
+    if (err_msg != NULL) {
+        LOG("%s", err_msg);
+    }
+    slapi_send_ldap_result(pb, rc, NULL, err_msg, 0, NULL);
+    ber_bvfree(ret_val);
+    free_req_data(req);
+    return SLAPI_PLUGIN_EXTENDED_SENT_RESULT;
+}
+
+static int ipa_extdom_init_ctx(Slapi_PBlock *pb, struct ipa_extdom_ctx **_ctx)
+{
+    struct ipa_extdom_ctx *ctx;
+    Slapi_Entry *e;
+    int ret;
+    unsigned int timeout;
+
+    ctx = calloc(1, sizeof(struct ipa_extdom_ctx));
+    if (!ctx) {
+        return LDAP_OPERATIONS_ERROR;
+    }
+
+    ret = slapi_pblock_get(pb, SLAPI_PLUGIN_IDENTITY, &ctx->plugin_id);
+    if ((ret != 0) || (NULL == ctx->plugin_id)) {
+        LOG_FATAL("Could not get identity or identity was NULL\n");
+        if (ret == 0) {
+            ret = -1;
+        }
+        goto done;
+    }
+
+    slapi_pblock_get(pb, SLAPI_PLUGIN_CONFIG_ENTRY, &e);
+    if (!e) {
+        LOG_FATAL("Plugin configuration not found!\n");
+        ret = -1;
+        goto done;
+    }
+
+    ctx->base_dn = slapi_entry_attr_get_charptr(e, "nsslapd-basedn");
+    if (!ctx->base_dn) {
+        LOG_FATAL("Base DN not found in plugin configuration not found!\n");
+        ret = -1;
+        goto done;
+    }
+
+    ctx->max_nss_buf_size = slapi_entry_attr_get_uint(e,
+                                                      "ipaExtdomMaxNssBufSize");
+    if (ctx->max_nss_buf_size == 0) {
+        ctx->max_nss_buf_size = DEFAULT_MAX_NSS_BUFFER;
+    }
+    LOG("Maximal nss buffer size set to [%zu]!\n", ctx->max_nss_buf_size);
+
+
+    ret = back_extdom_init_context(&ctx->nss_ctx);
+    if (ret != 0) {
+        LOG("Unable to initialize nss interface: returned [%d]!\n", ret);
+        goto done;
+    }
+
+    timeout = slapi_entry_attr_get_uint(e, "ipaExtdomMaxNssTimeout");
+    if (timeout == 0) {
+        timeout = DEFAULT_MAX_NSS_TIMEOUT;
+    }
+    back_extdom_set_timeout(ctx->nss_ctx, timeout);
+    LOG("Maximal nss timeout (in ms) set to [%u]!\n", timeout);
+
+    ret = 0;
+
+done:
+    if (ret) {
+        free(ctx);
+    } else {
+        *_ctx = ctx;
+    }
+    return ret;
+}
+
+int ipa_extdom_init(Slapi_PBlock *pb)
+{
+    int ret;
+    struct ipa_extdom_ctx *extdom_ctx;
+
+    ret = ipa_extdom_init_ctx(pb, &extdom_ctx);
+    if (ret) {
+        LOG_FATAL("Failed ot initialize external domain extended operation.\n");
+        /* do not cause DS to stop, simply do nothing */
+        return 0;
+    }
+
+    ret = slapi_pblock_set(pb, SLAPI_PLUGIN_VERSION, SLAPI_PLUGIN_VERSION_01);
+    if (!ret) {
+        ret = slapi_pblock_set(pb, SLAPI_PLUGIN_DESCRIPTION,
+                               (void *)&ipa_extdom_plugin_desc);
+    }
+    if (!ret) {
+        ret = slapi_pblock_set(pb, SLAPI_PLUGIN_START_FN,
+                               (void *)ipa_extdom_start);
+    }
+    if (!ret) {
+        ret = slapi_pblock_set(pb, SLAPI_PLUGIN_EXT_OP_OIDLIST,
+                               ipa_extdom_oid_list);
+    }
+    if (!ret) {
+        ret = slapi_pblock_set(pb, SLAPI_PLUGIN_EXT_OP_NAMELIST,
+                               ipa_extdom_name_list);
+    }
+    if (!ret) {
+        ret = slapi_pblock_set(pb, SLAPI_PLUGIN_EXT_OP_FN,
+                               (void *)ipa_extdom_extop);
+    }
+    if (!ret) {
+        ret = slapi_pblock_set(pb, SLAPI_PLUGIN_PRIVATE, extdom_ctx);
+    }
+    if (ret) {
+        LOG("Failed to set plug-in version, function, and OID.\n" );
+        return -1;
+    }
+
+    return 0;
+}