diff options
Diffstat (limited to 'daemons/ipa-slapi-plugins/ipa-cldap/ipa_cldap.c')
| -rw-r--r-- | daemons/ipa-slapi-plugins/ipa-cldap/ipa_cldap.c | 238 |
1 files changed, 238 insertions, 0 deletions
diff --git a/daemons/ipa-slapi-plugins/ipa-cldap/ipa_cldap.c b/daemons/ipa-slapi-plugins/ipa-cldap/ipa_cldap.c new file mode 100644 index 00000000..d7a59d51 --- /dev/null +++ b/daemons/ipa-slapi-plugins/ipa-cldap/ipa_cldap.c @@ -0,0 +1,238 @@ +/** 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: + * Simo Sorce <ssorce@redhat.com> + * + * Copyright (C) 2011 Red Hat, Inc. + * All rights reserved. + * END COPYRIGHT BLOCK **/ + +#include "ipa_cldap.h" +#include "util.h" + +Slapi_PluginDesc ipa_cldap_desc = { + IPA_CLDAP_PLUGIN_NAME, + "FreeIPA project", + "FreeIPA/3.0", + IPA_CLDAP_PLUGIN_DESC +}; + +static int ipa_cldap_start(Slapi_PBlock *pb) +{ + struct ipa_cldap_ctx *ctx; + int ret; + + ret = slapi_pblock_get(pb, SLAPI_PLUGIN_PRIVATE, &ctx); + if (ret) { + LOG_FATAL("No plugin context ?!\n"); + return -1; + } + + ret = pthread_create(&ctx->tid, NULL, ipa_cldap_worker, ctx); + if (ret) { + LOG_FATAL("Failed to create worker thread\n"); + return -1; + } + + LOG("Plugin statrup completed.\n"); + + return 0; +} + +static int ipa_cldap_stop(Slapi_PBlock *pb) +{ + struct ipa_cldap_ctx *ctx; + void *retval; + int ret; + + ret = slapi_pblock_get(pb, SLAPI_PLUGIN_PRIVATE, &ctx); + if (ret) { + LOG_FATAL("No plugin context ?!\n"); + return -1; + } + + /* send stop signal to terminate worker thread */ + write(ctx->stopfd[1], "", 1); + close(ctx->stopfd[1]); + + ret = pthread_join(ctx->tid, &retval); + if (ret) { + LOG_FATAL("Failed to stop worker thread\n"); + return -1; + } + + LOG("Plugin shutdown completed.\n"); + + return 0; +} + +static int ipa_cldap_init_service(Slapi_PBlock *pb, + struct ipa_cldap_ctx **cldap_ctx) +{ + struct ipa_cldap_ctx *ctx; + struct sockaddr_in6 addr; + Slapi_Entry *e; + int flags; + int val; + int ret; + + ctx = calloc(1, sizeof(struct ipa_cldap_ctx)); + if (!ctx) { + return ENOMEM; + } + ctx->sd = -1; + + 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"); + return -1; + } + + ctx->base_dn = slapi_entry_attr_get_charptr(e, "nsslapd-basedn"); + if (!ctx->base_dn) { + LOG_FATAL("Plugin configuration not found!\n"); + return -1; + } + + /* create a stop pipe so the main DS thread can interrupt the poll() + * of the worker thread at any time and cause the worker thread to + * immediately exit without waiting for timeouts or such */ + ret = pipe(ctx->stopfd); + if (ret != 0) { + LOG_FATAL("Failed to stop pipe\n"); + ret = EIO; + goto done; + } + + ctx->sd = socket(PF_INET6, SOCK_DGRAM, 0); + if (ctx->sd == -1) { + LOG_FATAL("Failed to create socket\n"); + ret = EIO; + goto done; + } + + val = 1; + ret = setsockopt(ctx->sd, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val)); + if (ret == -1) { + ret = errno; + LOG("Failed to make socket immediately reusable (%d, %s)\n", + ret, strerror(ret)); + } + + memset(&addr, 0, sizeof(addr)); + addr.sin6_family = AF_INET6; + addr.sin6_port = htons(CLDAP_PORT); + + ret = bind(ctx->sd, (struct sockaddr *)&addr, sizeof(addr)); + if (ret == -1) { + ret = errno; + LOG_FATAL("Failed to bind socket (%d, %s)\n", ret, strerror(ret)); + goto done; + } + + flags = fcntl(ctx->sd, F_GETFL); + if ((flags & O_NONBLOCK) == 0) { + ret = fcntl(ctx->sd, F_SETFL, flags | O_NONBLOCK); + if (ret == -1) { + ret = errno; + LOG_FATAL("Failed to set socket to non-blocking\n"); + goto done; + } + } + +done: + if (ret) { + if (ctx->sd != -1) { + close(ctx->sd); + } + free(ctx); + } else { + *cldap_ctx = ctx; + } + return ret; +} + +static int ipa_cldap_post_init(Slapi_PBlock *pb) +{ + return 0; +} + +/* Initialization function */ +int ipa_cldap_init(Slapi_PBlock *pb) +{ + struct ipa_cldap_ctx *cldap_ctx = NULL; + int ret; + + ret = ipa_cldap_init_service(pb, &cldap_ctx); + if (ret) { + LOG_FATAL("Failed to initialize CLDAP Plugin\n"); + /* do not cause DS to stop, simply do nothing */ + return 0; + } + + /* Register the plug-in */ + ret = slapi_pblock_set(pb, SLAPI_PLUGIN_VERSION, SLAPI_PLUGIN_VERSION_03); + if (!ret) { + ret = slapi_pblock_set(pb, SLAPI_PLUGIN_DESCRIPTION, &ipa_cldap_desc); + } + if (!ret) { + ret = slapi_pblock_set(pb, SLAPI_PLUGIN_START_FN, &ipa_cldap_start); + } + if (!ret) { + ret = slapi_pblock_set(pb, SLAPI_PLUGIN_CLOSE_FN, &ipa_cldap_stop); + } + if (!ret) { + ret = slapi_pblock_set(pb, SLAPI_PLUGIN_PRIVATE, cldap_ctx); + } + if (ret) { + LOG_FATAL("Failed to initialize plug-in\n" ); + return -1; + } + + slapi_register_plugin("postoperation", 1, + "ipa_cldap_post_init", + ipa_cldap_post_init, + "CLDAP post ops", NULL, + cldap_ctx->plugin_id); + + return 0; +} |