Imported Upstream version 4.6.2
This commit is contained in:
Mario Fetka
243
daemons/ipa-slapi-plugins/ipa-cldap/ipa_cldap.c
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243
daemons/ipa-slapi-plugins/ipa-cldap/ipa_cldap.c
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/** BEGIN COPYRIGHT BLOCK
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* Additional permission under GPLv3 section 7:
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*
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* In the following paragraph, "GPL" means the GNU General Public
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* License, version 3 or any later version, and "Non-GPL Code" means
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* code that is governed neither by the GPL nor a license
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* compatible with the GPL.
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*
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* You may link the code of this Program with Non-GPL Code and convey
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* linked combinations including the two, provided that such Non-GPL
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* Code only links to the code of this Program through those well
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* defined interfaces identified in the file named EXCEPTION found in
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* the source code files (the "Approved Interfaces"). The files of
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* Non-GPL Code may instantiate templates or use macros or inline
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* functions from the Approved Interfaces without causing the resulting
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* work to be covered by the GPL. Only the copyright holders of this
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* Program may make changes or additions to the list of Approved
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* Interfaces.
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*
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* Authors:
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* Simo Sorce <ssorce@redhat.com>
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*
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* Copyright (C) 2011 Red Hat, Inc.
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* All rights reserved.
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* END COPYRIGHT BLOCK **/
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#include "ipa_cldap.h"
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#include "util.h"
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Slapi_PluginDesc ipa_cldap_desc = {
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IPA_CLDAP_PLUGIN_NAME,
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"FreeIPA project",
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"FreeIPA/3.0",
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IPA_CLDAP_PLUGIN_DESC
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};
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static int ipa_cldap_start(Slapi_PBlock *pb)
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{
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struct ipa_cldap_ctx *ctx;
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int ret;
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ret = slapi_pblock_get(pb, SLAPI_PLUGIN_PRIVATE, &ctx);
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if (ret) {
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LOG_FATAL("No plugin context ?!\n");
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return -1;
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}
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ret = pthread_create(&ctx->tid, NULL, ipa_cldap_worker, ctx);
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if (ret) {
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LOG_FATAL("Failed to create worker thread\n");
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return -1;
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}
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LOG("Plugin statrup completed.\n");
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return 0;
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}
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static int ipa_cldap_stop(Slapi_PBlock *pb)
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{
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struct ipa_cldap_ctx *ctx;
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void *retval;
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int ret;
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ret = slapi_pblock_get(pb, SLAPI_PLUGIN_PRIVATE, &ctx);
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if (ret) {
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LOG_FATAL("No plugin context ?!\n");
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return -1;
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}
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/* send stop signal to terminate worker thread */
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do {
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ret = write(ctx->stopfd[1], "", 1);
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} while (ret == -1 && errno == EINTR);
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close(ctx->stopfd[1]);
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ret = pthread_join(ctx->tid, &retval);
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if (ret) {
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LOG_FATAL("Failed to stop worker thread\n");
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return -1;
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}
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LOG("Plugin shutdown completed.\n");
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return 0;
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}
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static int ipa_cldap_init_service(Slapi_PBlock *pb,
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struct ipa_cldap_ctx **cldap_ctx)
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{
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struct ipa_cldap_ctx *ctx;
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struct sockaddr_in6 addr;
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Slapi_Entry *e;
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int flags;
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int val;
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int ret;
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ctx = calloc(1, sizeof(struct ipa_cldap_ctx));
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if (!ctx) {
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return ENOMEM;
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}
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ctx->sd = -1;
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ret = slapi_pblock_get(pb, SLAPI_PLUGIN_IDENTITY, &ctx->plugin_id);
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if ((ret != 0) || (NULL == ctx->plugin_id)) {
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LOG_FATAL("Could not get identity or identity was NULL\n");
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if (ret == 0) {
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ret = -1;
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}
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goto done;
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}
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slapi_pblock_get(pb, SLAPI_PLUGIN_CONFIG_ENTRY, &e);
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if (!e) {
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LOG_FATAL("Plugin configuration not found!\n");
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ret = -1;
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goto done;
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}
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ctx->base_dn = slapi_entry_attr_get_charptr(e, "nsslapd-basedn");
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if (!ctx->base_dn) {
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LOG_FATAL("Plugin configuration not found!\n");
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ret = -1;
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goto done;
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}
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/* create a stop pipe so the main DS thread can interrupt the poll()
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* of the worker thread at any time and cause the worker thread to
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* immediately exit without waiting for timeouts or such */
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ret = pipe(ctx->stopfd);
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if (ret != 0) {
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LOG_FATAL("Failed to stop pipe\n");
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ret = EIO;
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goto done;
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}
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ctx->sd = socket(PF_INET6, SOCK_DGRAM, 0);
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if (ctx->sd == -1) {
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LOG_FATAL("Failed to create IPv6 socket: IPv6 support in kernel "
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"is required\n");
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ret = EIO;
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goto done;
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}
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val = 1;
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ret = setsockopt(ctx->sd, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val));
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if (ret == -1) {
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ret = errno;
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LOG("Failed to make socket immediately reusable (%d, %s)\n",
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ret, strerror(ret));
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}
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memset(&addr, 0, sizeof(addr));
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addr.sin6_family = AF_INET6;
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addr.sin6_port = htons(CLDAP_PORT);
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ret = bind(ctx->sd, (struct sockaddr *)&addr, sizeof(addr));
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if (ret == -1) {
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ret = errno;
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LOG_FATAL("Failed to bind socket (%d, %s)\n", ret, strerror(ret));
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goto done;
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}
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flags = fcntl(ctx->sd, F_GETFL);
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if ((flags & O_NONBLOCK) == 0) {
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ret = fcntl(ctx->sd, F_SETFL, flags | O_NONBLOCK);
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if (ret == -1) {
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ret = errno;
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LOG_FATAL("Failed to set socket to non-blocking\n");
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goto done;
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}
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}
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done:
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if (ret) {
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if (ctx->sd != -1) {
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close(ctx->sd);
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}
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free(ctx);
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} else {
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*cldap_ctx = ctx;
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}
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return ret;
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}
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static int ipa_cldap_post_init(Slapi_PBlock *pb)
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{
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return 0;
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}
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/* Initialization function */
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int ipa_cldap_init(Slapi_PBlock *pb)
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{
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struct ipa_cldap_ctx *cldap_ctx = NULL;
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int ret;
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ret = ipa_cldap_init_service(pb, &cldap_ctx);
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if (ret) {
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LOG_FATAL("Failed to initialize CLDAP Plugin\n");
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/* do not cause DS to stop, simply do nothing */
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return 0;
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}
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/* Register the plug-in */
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ret = slapi_pblock_set(pb, SLAPI_PLUGIN_VERSION, SLAPI_PLUGIN_VERSION_03);
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if (!ret) {
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ret = slapi_pblock_set(pb, SLAPI_PLUGIN_DESCRIPTION, &ipa_cldap_desc);
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}
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if (!ret) {
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ret = slapi_pblock_set(pb, SLAPI_PLUGIN_START_FN, &ipa_cldap_start);
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}
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if (!ret) {
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ret = slapi_pblock_set(pb, SLAPI_PLUGIN_CLOSE_FN, &ipa_cldap_stop);
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}
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if (!ret) {
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ret = slapi_pblock_set(pb, SLAPI_PLUGIN_PRIVATE, cldap_ctx);
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}
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if (ret) {
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LOG_FATAL("Failed to initialize plug-in\n" );
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return -1;
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}
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slapi_register_plugin("postoperation", 1,
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"ipa_cldap_post_init",
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ipa_cldap_post_init,
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"CLDAP post ops", NULL,
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cldap_ctx->plugin_id);
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return 0;
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}
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