diff options
Diffstat (limited to 'contrib/bind9/lib/irs/context.c')
| -rw-r--r-- | contrib/bind9/lib/irs/context.c | 396 |
1 files changed, 0 insertions, 396 deletions
diff --git a/contrib/bind9/lib/irs/context.c b/contrib/bind9/lib/irs/context.c deleted file mode 100644 index be69622b5b6a..000000000000 --- a/contrib/bind9/lib/irs/context.c +++ /dev/null @@ -1,396 +0,0 @@ -/* - * Copyright (C) 2009 Internet Systems Consortium, Inc. ("ISC") - * - * Permission to use, copy, modify, and/or distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH - * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, - * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM - * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE - * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR - * PERFORMANCE OF THIS SOFTWARE. - */ - -/* $Id: context.c,v 1.3 2009/09/02 23:48:02 tbox Exp $ */ - -#include <config.h> - -#include <isc/app.h> -#include <isc/lib.h> -#include <isc/magic.h> -#include <isc/mem.h> -#include <isc/once.h> -#include <isc/socket.h> -#include <isc/task.h> -#include <isc/thread.h> -#include <isc/timer.h> -#include <isc/util.h> - -#include <dns/client.h> -#include <dns/lib.h> - -#include <irs/context.h> -#include <irs/dnsconf.h> -#include <irs/resconf.h> - -#define IRS_CONTEXT_MAGIC ISC_MAGIC('I', 'R', 'S', 'c') -#define IRS_CONTEXT_VALID(c) ISC_MAGIC_VALID(c, IRS_CONTEXT_MAGIC) - -#ifndef RESOLV_CONF -/*% location of resolve.conf */ -#define RESOLV_CONF "/etc/resolv.conf" -#endif - -#ifndef DNS_CONF -/*% location of dns.conf */ -#define DNS_CONF "/etc/dns.conf" -#endif - -#ifndef ISC_PLATFORM_USETHREADS -irs_context_t *irs_g_context = NULL; -#else -static isc_boolean_t thread_key_initialized = ISC_FALSE; -static isc_mutex_t thread_key_mutex; -static isc_thread_key_t irs_context_key; -static isc_once_t once = ISC_ONCE_INIT; -#endif - - -struct irs_context { - /* - * An IRS context is a thread-specific object, and does not need to - * be locked. - */ - unsigned int magic; - isc_mem_t *mctx; - isc_appctx_t *actx; - isc_taskmgr_t *taskmgr; - isc_task_t *task; - isc_socketmgr_t *socketmgr; - isc_timermgr_t *timermgr; - dns_client_t *dnsclient; - irs_resconf_t *resconf; - irs_dnsconf_t *dnsconf; -}; - -static void -ctxs_destroy(isc_mem_t **mctxp, isc_appctx_t **actxp, - isc_taskmgr_t **taskmgrp, isc_socketmgr_t **socketmgrp, - isc_timermgr_t **timermgrp) -{ - if (taskmgrp != NULL) - isc_taskmgr_destroy(taskmgrp); - - if (timermgrp != NULL) - isc_timermgr_destroy(timermgrp); - - if (socketmgrp != NULL) - isc_socketmgr_destroy(socketmgrp); - - if (actxp != NULL) - isc_appctx_destroy(actxp); - - if (mctxp != NULL) - isc_mem_destroy(mctxp); -} - -static isc_result_t -ctxs_init(isc_mem_t **mctxp, isc_appctx_t **actxp, - isc_taskmgr_t **taskmgrp, isc_socketmgr_t **socketmgrp, - isc_timermgr_t **timermgrp) -{ - isc_result_t result; - - result = isc_mem_create(0, 0, mctxp); - if (result != ISC_R_SUCCESS) - goto fail; - - result = isc_appctx_create(*mctxp, actxp); - if (result != ISC_R_SUCCESS) - goto fail; - - result = isc_taskmgr_createinctx(*mctxp, *actxp, 1, 0, taskmgrp); - if (result != ISC_R_SUCCESS) - goto fail; - - result = isc_socketmgr_createinctx(*mctxp, *actxp, socketmgrp); - if (result != ISC_R_SUCCESS) - goto fail; - - result = isc_timermgr_createinctx(*mctxp, *actxp, timermgrp); - if (result != ISC_R_SUCCESS) - goto fail; - - return (ISC_R_SUCCESS); - - fail: - ctxs_destroy(mctxp, actxp, taskmgrp, socketmgrp, timermgrp); - - return (result); -} - -#ifdef ISC_PLATFORM_USETHREADS -static void -free_specific_context(void *arg) { - irs_context_t *context = arg; - - irs_context_destroy(&context); - - isc_thread_key_setspecific(irs_context_key, NULL); -} - -static void -thread_key_mutex_init(void) { - RUNTIME_CHECK(isc_mutex_init(&thread_key_mutex) == ISC_R_SUCCESS); -} - -static isc_result_t -thread_key_init() { - isc_result_t result; - - result = isc_once_do(&once, thread_key_mutex_init); - if (result != ISC_R_SUCCESS) - return (result); - - if (!thread_key_initialized) { - LOCK(&thread_key_mutex); - - if (!thread_key_initialized && - isc_thread_key_create(&irs_context_key, - free_specific_context) != 0) { - result = ISC_R_FAILURE; - } else - thread_key_initialized = ISC_TRUE; - - UNLOCK(&thread_key_mutex); - } - - return (result); -} -#endif /* ISC_PLATFORM_USETHREADS */ - -isc_result_t -irs_context_get(irs_context_t **contextp) { - irs_context_t *context; - isc_result_t result; - - REQUIRE(contextp != NULL && *contextp == NULL); - -#ifndef ISC_PLATFORM_USETHREADS - if (irs_g_context == NULL) { - result = irs_context_create(&irs_g_context); - if (result != ISC_R_SUCCESS) - return (result); - } - - context = irs_g_context; -#else - result = thread_key_init(); - if (result != ISC_R_SUCCESS) - return (result); - - context = isc_thread_key_getspecific(irs_context_key); - if (context == NULL) { - result = irs_context_create(&context); - if (result != ISC_R_SUCCESS) - return (result); - result = isc_thread_key_setspecific(irs_context_key, context); - if (result != ISC_R_SUCCESS) { - irs_context_destroy(&context); - return (result); - } - } -#endif /* ISC_PLATFORM_USETHREADS */ - - *contextp = context; - - return (ISC_R_SUCCESS); -} - -isc_result_t -irs_context_create(irs_context_t **contextp) { - isc_result_t result; - irs_context_t *context; - isc_appctx_t *actx = NULL; - isc_mem_t *mctx = NULL; - isc_taskmgr_t *taskmgr = NULL; - isc_socketmgr_t *socketmgr = NULL; - isc_timermgr_t *timermgr = NULL; - dns_client_t *client = NULL; - isc_sockaddrlist_t *nameservers; - irs_dnsconf_dnskeylist_t *trustedkeys; - irs_dnsconf_dnskey_t *trustedkey; - - isc_lib_register(); - result = dns_lib_init(); - if (result != ISC_R_SUCCESS) - return (result); - - result = ctxs_init(&mctx, &actx, &taskmgr, &socketmgr, &timermgr); - if (result != ISC_R_SUCCESS) - return (result); - - result = isc_app_ctxstart(actx); - if (result != ISC_R_SUCCESS) { - ctxs_destroy(&mctx, &actx, &taskmgr, &socketmgr, &timermgr); - return (result); - } - - context = isc_mem_get(mctx, sizeof(*context)); - if (context == NULL) { - ctxs_destroy(&mctx, &actx, &taskmgr, &socketmgr, &timermgr); - return (ISC_R_NOMEMORY); - } - - context->mctx = mctx; - context->actx = actx; - context->taskmgr = taskmgr; - context->socketmgr = socketmgr; - context->timermgr = timermgr; - context->resconf = NULL; - context->dnsconf = NULL; - context->task = NULL; - result = isc_task_create(taskmgr, 0, &context->task); - if (result != ISC_R_SUCCESS) - goto fail; - - /* Create a DNS client object */ - result = dns_client_createx(mctx, actx, taskmgr, socketmgr, timermgr, - 0, &client); - if (result != ISC_R_SUCCESS) - goto fail; - context->dnsclient = client; - - /* Read resolver configuration file */ - result = irs_resconf_load(mctx, RESOLV_CONF, &context->resconf); - if (result != ISC_R_SUCCESS) - goto fail; - /* Set nameservers */ - nameservers = irs_resconf_getnameservers(context->resconf); - result = dns_client_setservers(client, dns_rdataclass_in, NULL, - nameservers); - if (result != ISC_R_SUCCESS) - goto fail; - - /* Read advanced DNS configuration (if any) */ - result = irs_dnsconf_load(mctx, DNS_CONF, &context->dnsconf); - if (result != ISC_R_SUCCESS) - goto fail; - trustedkeys = irs_dnsconf_gettrustedkeys(context->dnsconf); - for (trustedkey = ISC_LIST_HEAD(*trustedkeys); - trustedkey != NULL; - trustedkey = ISC_LIST_NEXT(trustedkey, link)) { - result = dns_client_addtrustedkey(client, dns_rdataclass_in, - trustedkey->keyname, - trustedkey->keydatabuf); - if (result != ISC_R_SUCCESS) - goto fail; - } - - context->magic = IRS_CONTEXT_MAGIC; - *contextp = context; - - return (ISC_R_SUCCESS); - - fail: - if (context->task != NULL) - isc_task_detach(&context->task); - if (context->resconf != NULL) - irs_resconf_destroy(&context->resconf); - if (context->dnsconf != NULL) - irs_dnsconf_destroy(&context->dnsconf); - if (client != NULL) - dns_client_destroy(&client); - ctxs_destroy(NULL, &actx, &taskmgr, &socketmgr, &timermgr); - isc_mem_putanddetach(&mctx, context, sizeof(*context)); - - return (result); -} - -void -irs_context_destroy(irs_context_t **contextp) { - irs_context_t *context; - - REQUIRE(contextp != NULL); - context = *contextp; - REQUIRE(IRS_CONTEXT_VALID(context)); - - isc_task_detach(&context->task); - irs_dnsconf_destroy(&context->dnsconf); - irs_resconf_destroy(&context->resconf); - dns_client_destroy(&context->dnsclient); - - ctxs_destroy(NULL, &context->actx, &context->taskmgr, - &context->socketmgr, &context->timermgr); - - context->magic = 0; - - isc_mem_putanddetach(&context->mctx, context, sizeof(*context)); - - *contextp = NULL; - -#ifndef ISC_PLATFORM_USETHREADS - irs_g_context = NULL; -#else - (void)isc_thread_key_setspecific(irs_context_key, NULL); -#endif -} - -isc_mem_t * -irs_context_getmctx(irs_context_t *context) { - REQUIRE(IRS_CONTEXT_VALID(context)); - - return (context->mctx); -} - -isc_appctx_t * -irs_context_getappctx(irs_context_t *context) { - REQUIRE(IRS_CONTEXT_VALID(context)); - - return (context->actx); -} - -isc_taskmgr_t * -irs_context_gettaskmgr(irs_context_t *context) { - REQUIRE(IRS_CONTEXT_VALID(context)); - - return (context->taskmgr); -} - -isc_timermgr_t * -irs_context_gettimermgr(irs_context_t *context) { - REQUIRE(IRS_CONTEXT_VALID(context)); - - return (context->timermgr); -} - -isc_task_t * -irs_context_gettask(irs_context_t *context) { - REQUIRE(IRS_CONTEXT_VALID(context)); - - return (context->task); -} - -dns_client_t * -irs_context_getdnsclient(irs_context_t *context) { - REQUIRE(IRS_CONTEXT_VALID(context)); - - return (context->dnsclient); -} - -irs_resconf_t * -irs_context_getresconf(irs_context_t *context) { - REQUIRE(IRS_CONTEXT_VALID(context)); - - return (context->resconf); -} - -irs_dnsconf_t * -irs_context_getdnsconf(irs_context_t *context) { - REQUIRE(IRS_CONTEXT_VALID(context)); - - return (context->dnsconf); -} |