1135446Strhodes/* 2193149Sdougb * Copyright (C) 2004, 2005, 2007 Internet Systems Consortium, Inc. ("ISC") 3135446Strhodes * Copyright (C) 2000, 2001 Internet Software Consortium. 4135446Strhodes * 5193149Sdougb * Permission to use, copy, modify, and/or distribute this software for any 6135446Strhodes * purpose with or without fee is hereby granted, provided that the above 7135446Strhodes * copyright notice and this permission notice appear in all copies. 8135446Strhodes * 9135446Strhodes * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH 10135446Strhodes * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 11135446Strhodes * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, 12135446Strhodes * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 13135446Strhodes * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 14135446Strhodes * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 15135446Strhodes * PERFORMANCE OF THIS SOFTWARE. 16135446Strhodes */ 17135446Strhodes 18234010Sdougb/* $Id: listenlist.c,v 1.14 2007/06/19 23:46:59 tbox Exp $ */ 19135446Strhodes 20170222Sdougb/*! \file */ 21170222Sdougb 22135446Strhodes#include <config.h> 23135446Strhodes 24135446Strhodes#include <isc/mem.h> 25135446Strhodes#include <isc/util.h> 26135446Strhodes 27135446Strhodes#include <dns/acl.h> 28135446Strhodes 29135446Strhodes#include <named/listenlist.h> 30135446Strhodes 31135446Strhodesstatic void 32135446Strhodesdestroy(ns_listenlist_t *list); 33135446Strhodes 34135446Strhodesisc_result_t 35135446Strhodesns_listenelt_create(isc_mem_t *mctx, in_port_t port, 36135446Strhodes dns_acl_t *acl, ns_listenelt_t **target) 37135446Strhodes{ 38135446Strhodes ns_listenelt_t *elt = NULL; 39135446Strhodes REQUIRE(target != NULL && *target == NULL); 40135446Strhodes elt = isc_mem_get(mctx, sizeof(*elt)); 41135446Strhodes if (elt == NULL) 42135446Strhodes return (ISC_R_NOMEMORY); 43135446Strhodes elt->mctx = mctx; 44135446Strhodes ISC_LINK_INIT(elt, link); 45135446Strhodes elt->port = port; 46135446Strhodes elt->acl = acl; 47135446Strhodes *target = elt; 48135446Strhodes return (ISC_R_SUCCESS); 49135446Strhodes} 50135446Strhodes 51135446Strhodesvoid 52135446Strhodesns_listenelt_destroy(ns_listenelt_t *elt) { 53135446Strhodes if (elt->acl != NULL) 54135446Strhodes dns_acl_detach(&elt->acl); 55135446Strhodes isc_mem_put(elt->mctx, elt, sizeof(*elt)); 56135446Strhodes} 57135446Strhodes 58135446Strhodesisc_result_t 59135446Strhodesns_listenlist_create(isc_mem_t *mctx, ns_listenlist_t **target) { 60135446Strhodes ns_listenlist_t *list = NULL; 61135446Strhodes REQUIRE(target != NULL && *target == NULL); 62135446Strhodes list = isc_mem_get(mctx, sizeof(*list)); 63135446Strhodes if (list == NULL) 64135446Strhodes return (ISC_R_NOMEMORY); 65135446Strhodes list->mctx = mctx; 66135446Strhodes list->refcount = 1; 67135446Strhodes ISC_LIST_INIT(list->elts); 68135446Strhodes *target = list; 69135446Strhodes return (ISC_R_SUCCESS); 70135446Strhodes} 71135446Strhodes 72135446Strhodesstatic void 73135446Strhodesdestroy(ns_listenlist_t *list) { 74135446Strhodes ns_listenelt_t *elt, *next; 75135446Strhodes for (elt = ISC_LIST_HEAD(list->elts); 76135446Strhodes elt != NULL; 77135446Strhodes elt = next) 78135446Strhodes { 79135446Strhodes next = ISC_LIST_NEXT(elt, link); 80135446Strhodes ns_listenelt_destroy(elt); 81135446Strhodes } 82135446Strhodes isc_mem_put(list->mctx, list, sizeof(*list)); 83135446Strhodes} 84135446Strhodes 85135446Strhodesvoid 86135446Strhodesns_listenlist_attach(ns_listenlist_t *source, ns_listenlist_t **target) { 87135446Strhodes INSIST(source->refcount > 0); 88135446Strhodes source->refcount++; 89135446Strhodes *target = source; 90135446Strhodes} 91135446Strhodes 92135446Strhodesvoid 93135446Strhodesns_listenlist_detach(ns_listenlist_t **listp) { 94135446Strhodes ns_listenlist_t *list = *listp; 95135446Strhodes INSIST(list->refcount > 0); 96135446Strhodes list->refcount--; 97135446Strhodes if (list->refcount == 0) 98135446Strhodes destroy(list); 99135446Strhodes *listp = NULL; 100135446Strhodes} 101135446Strhodes 102135446Strhodesisc_result_t 103135446Strhodesns_listenlist_default(isc_mem_t *mctx, in_port_t port, 104135446Strhodes isc_boolean_t enabled, ns_listenlist_t **target) 105135446Strhodes{ 106135446Strhodes isc_result_t result; 107135446Strhodes dns_acl_t *acl = NULL; 108135446Strhodes ns_listenelt_t *elt = NULL; 109135446Strhodes ns_listenlist_t *list = NULL; 110135446Strhodes 111135446Strhodes REQUIRE(target != NULL && *target == NULL); 112135446Strhodes if (enabled) 113135446Strhodes result = dns_acl_any(mctx, &acl); 114135446Strhodes else 115135446Strhodes result = dns_acl_none(mctx, &acl); 116135446Strhodes if (result != ISC_R_SUCCESS) 117135446Strhodes goto cleanup; 118135446Strhodes 119135446Strhodes result = ns_listenelt_create(mctx, port, acl, &elt); 120135446Strhodes if (result != ISC_R_SUCCESS) 121135446Strhodes goto cleanup_acl; 122135446Strhodes 123135446Strhodes result = ns_listenlist_create(mctx, &list); 124135446Strhodes if (result != ISC_R_SUCCESS) 125135446Strhodes goto cleanup_listenelt; 126135446Strhodes 127135446Strhodes ISC_LIST_APPEND(list->elts, elt, link); 128135446Strhodes 129135446Strhodes *target = list; 130135446Strhodes return (ISC_R_SUCCESS); 131135446Strhodes 132135446Strhodes cleanup_listenelt: 133135446Strhodes ns_listenelt_destroy(elt); 134135446Strhodes cleanup_acl: 135135446Strhodes dns_acl_detach(&acl); 136135446Strhodes cleanup: 137135446Strhodes return (result); 138135446Strhodes} 139