Imported Upstream version 4.6.2

daemons/ipa-slapi-plugins/ipa-sidgen/ipa_sidgen.c

@@ -0,0 +1,244 @@
+/** 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) 2012 Red Hat, Inc.
+ * All rights reserved.
+ * END COPYRIGHT BLOCK **/
+
+#include <stdlib.h>
+#include <errno.h>
+#include <stdbool.h>
+#include <dirsrv/slapi-plugin.h>
+
+#include "util.h"
+#include "ipa_sidgen.h"
+
+Slapi_PluginDesc ipa_sidgen_plugin_desc = {
+    IPA_SIDGEN_FEATURE_DESC,
+    "FreeIPA project",
+    "FreeIPA/1.0",
+    IPA_SIDGEN_PLUGIN_DESC
+};
+
+static int ipa_sidgen_start(Slapi_PBlock *pb)
+{
+    return 0;
+}
+
+static int ipa_sidgen_close(Slapi_PBlock *pb)
+{
+    int ret;
+    struct ipa_sidgen_ctx *ctx;
+
+    ret = slapi_pblock_get(pb, SLAPI_PLUGIN_PRIVATE, &ctx);
+    if (ret == 0) {
+        free_ranges(&ctx->ranges);
+        slapi_ch_free_string(&ctx->dom_sid);
+    } else {
+        LOG_FATAL("Missing private plugin context.\n");
+    }
+
+    return 0;
+}
+
+static int ipa_sidgen_add_post_op(Slapi_PBlock *pb)
+{
+    int ret;
+    int is_repl_op;
+    struct slapi_entry *entry = NULL;
+    const char *dn_str;
+    Slapi_DN *dn = NULL;
+    struct ipa_sidgen_ctx *ctx;
+    Slapi_PBlock *search_pb = NULL;
+    char *errmsg = NULL;
+
+    ret = slapi_pblock_get(pb, SLAPI_IS_REPLICATED_OPERATION, &is_repl_op);
+    if (ret != 0) {
+        LOG_FATAL("slapi_pblock_get failed!?\n");
+        return LDAP_OPERATIONS_ERROR;
+    }
+
+    if (is_repl_op) {
+        LOG("Is replicated operation, nothing to do.\n");
+        return LDAP_SUCCESS;
+    }
+
+    ret = slapi_pblock_get(pb, SLAPI_PLUGIN_PRIVATE, &ctx);
+    if (ret != 0) {
+        LOG_FATAL("Missing private plugin context.\n");
+        goto done;
+    }
+
+    if (ctx->dom_sid == NULL) {
+        ret = get_dom_sid(ctx->plugin_id, ctx->base_dn, &ctx->dom_sid);
+        if (ret != 0) {
+            LOG("Domain SID not available, nothing to do.\n");
+            ret = 0;
+            goto done;
+        }
+    }
+
+    ret = slapi_pblock_get(pb, SLAPI_TARGET_DN, &dn_str);
+    if (ret != 0) {
+        LOG_FATAL("Missing target DN.\n");
+        goto done;
+    }
+
+    dn = slapi_sdn_new_dn_byref(dn_str);
+    if (dn == NULL) {
+        LOG_FATAL("Failed to convert target DN.\n");
+        ret = LDAP_OPERATIONS_ERROR;
+        goto done;
+    }
+
+    ret = slapi_search_internal_get_entry(dn, NULL, &entry, ctx->plugin_id);
+    if (ret != 0 || entry == NULL) {
+        LOG_FATAL("Missing target entry.\n");
+        ret = LDAP_NO_SUCH_OBJECT;
+        goto done;
+    }
+
+    if (ctx->ranges == NULL) {
+        ret = get_ranges(ctx->plugin_id, ctx->base_dn, &ctx->ranges);
+        if (ret != 0) {
+            if (ret == LDAP_NO_SUCH_OBJECT) {
+                ret = 0;
+                LOG("No ID ranges found, nothing to do.\n");
+            } else {
+                LOG_FATAL("Failed to get ID ranges.\n");
+            }
+            goto done;
+        }
+    }
+
+    ret = find_sid_for_ldap_entry(entry, ctx->plugin_id, ctx->base_dn,
+                                  ctx->dom_sid, ctx->ranges);
+    if (ret != 0) {
+        LOG_FATAL("Cannot add SID to new entry.\n");
+        goto done;
+    }
+
+    ret = 0;
+done:
+    slapi_free_search_results_internal(search_pb);
+    slapi_pblock_destroy(search_pb);
+    slapi_sdn_free(&dn);
+
+    if (ret != 0) {
+        if (errmsg == NULL) {
+            errmsg = "SIDGEN error";
+        }
+        slapi_send_ldap_result(pb, ret, NULL, errmsg, 0, NULL);
+    }
+
+    return ret;
+}
+
+static int ipa_sidgen_init_ctx(Slapi_PBlock *pb, struct ipa_sidgen_ctx **_ctx)
+{
+    struct ipa_sidgen_ctx *ctx;
+    Slapi_Entry *entry;
+    int ret;
+
+    ctx = calloc(1, sizeof(struct ipa_sidgen_ctx));
+    if (ctx == NULL) {
+        return LDAP_OPERATIONS_ERROR;
+    }
+
+    ret = slapi_pblock_get(pb, SLAPI_PLUGIN_IDENTITY, &ctx->plugin_id);
+    if ((ret != 0) || (ctx->plugin_id == NULL)) {
+        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, &entry);
+    if (entry == NULL) {
+        LOG_FATAL("Plugin configuration not found!\n");
+        ret = EINVAL;
+        goto done;
+    }
+
+    ctx->base_dn = slapi_entry_attr_get_charptr(entry, "nsslapd-basedn");
+    if (ctx->base_dn == NULL) {
+        LOG_FATAL("Base DN not found in plugin configuration!\n");
+        ret = EINVAL;
+        goto done;
+    }
+
+    ret = 0;
+
+done:
+    if (ret != 0) {
+        free(ctx);
+    } else {
+        *_ctx = ctx;
+    }
+
+    return ret;
+}
+
+int ipa_sidgen_init(Slapi_PBlock *pb)
+{
+    int ret;
+    struct ipa_sidgen_ctx *ctx;
+
+    ret = ipa_sidgen_init_ctx(pb, &ctx);
+    if (ret != 0) {
+        LOG_FATAL("Failed ot initialize sidgen postop plugin.\n");
+        /* do not cause DS to stop, simply do nothing */
+        return 0;
+    }
+
+    ret = 0;
+    if (slapi_pblock_set(pb, SLAPI_PLUGIN_VERSION,
+                         SLAPI_PLUGIN_VERSION_03) != 0 ||
+        slapi_pblock_set(pb, SLAPI_PLUGIN_START_FN,
+                         (void *) ipa_sidgen_start) != 0 ||
+        slapi_pblock_set(pb, SLAPI_PLUGIN_CLOSE_FN,
+                         (void *) ipa_sidgen_close) != 0 ||
+        slapi_pblock_set(pb, SLAPI_PLUGIN_DESCRIPTION,
+                         (void *) &ipa_sidgen_plugin_desc) != 0 ||
+        slapi_pblock_set(pb, SLAPI_PLUGIN_POST_ADD_FN,
+                         (void *) ipa_sidgen_add_post_op) != 0 ||
+        slapi_pblock_set(pb, SLAPI_PLUGIN_PRIVATE, ctx) != 0) {
+        LOG_FATAL("failed to register plugin\n");
+        ret = EFAIL;
+    }
+
+    return ret;
+}