mirror of
https://github.com/isc-projects/bind9.git
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388 lines
7.3 KiB
C
388 lines
7.3 KiB
C
/*
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* Copyright (C) 1999, 2000 Internet Software Consortium.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
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* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
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* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*/
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/* $Id: conflsn.c,v 1.16 2000/06/06 14:20:01 brister Exp $ */
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#include <config.h>
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#include <isc/mem.h>
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#include <isc/util.h>
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#include <dns/conflsn.h>
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#include <dns/log.h>
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#include "confpvt.h"
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isc_result_t
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dns_c_lstnon_new(isc_mem_t *mem, dns_c_lstnon_t **listen) {
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dns_c_lstnon_t *ll;
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isc_result_t result;
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REQUIRE(listen != NULL);
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*listen = NULL;
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ll = isc_mem_get(mem, sizeof *ll);
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ll->mem = mem;
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ll->port = 0;
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ll->magic = DNS_C_LISTEN_MAGIC;
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result = dns_c_ipmatchlist_new(mem, &ll->iml);
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if (result != ISC_R_SUCCESS) {
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isc_mem_put(mem, ll, sizeof *ll);
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return (result);
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}
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ISC_LINK_INIT(ll, next);
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*listen = ll;
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return (ISC_R_SUCCESS);
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}
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isc_result_t
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dns_c_lstnon_delete(dns_c_lstnon_t **listen) {
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dns_c_lstnon_t *lo;
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isc_result_t r;
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REQUIRE(listen != NULL);
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REQUIRE(DNS_C_LISTEN_VALID(*listen));
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lo = *listen;
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if (lo->iml != NULL) {
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r = dns_c_ipmatchlist_detach(&lo->iml);
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} else {
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r = ISC_R_SUCCESS;
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}
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lo->magic = 0;
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isc_mem_put(lo->mem, lo, sizeof *lo);
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*listen = NULL;
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return (r);
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}
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isc_result_t
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dns_c_lstnon_setiml(dns_c_lstnon_t *listen,
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dns_c_ipmatchlist_t *iml, isc_boolean_t deepcopy)
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{
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isc_result_t result;
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REQUIRE(DNS_C_LISTEN_VALID(listen));
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REQUIRE(DNS_C_IPMLIST_VALID(iml));
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if (listen->iml != NULL) {
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result = dns_c_ipmatchlist_detach(&listen->iml);
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if (result != ISC_R_SUCCESS) {
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return (result);
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}
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} else {
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result = ISC_R_SUCCESS;
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}
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if (deepcopy) {
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result = dns_c_ipmatchlist_copy(listen->mem,
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&listen->iml, iml);
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} else {
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listen->iml = iml;
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}
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return (result);
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}
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isc_result_t
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dns_c_lstnlist_new(isc_mem_t *mem, dns_c_lstnlist_t **llist) {
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dns_c_lstnlist_t *ll;
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REQUIRE(llist != NULL);
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*llist = NULL;
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ll = isc_mem_get(mem, sizeof *ll);
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if (ll == NULL) {
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/* XXXJAB logwrite */
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return (ISC_R_NOMEMORY);
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}
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ll->mem = mem;
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ll->magic = DNS_C_LLIST_MAGIC;
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ISC_LIST_INIT(ll->elements);
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*llist = ll;
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return (ISC_R_SUCCESS);
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}
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isc_result_t
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dns_c_lstnlist_delete(dns_c_lstnlist_t **llist) {
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dns_c_lstnlist_t *ll;
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dns_c_lstnon_t *lo, *lotmp;
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isc_result_t r;
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REQUIRE(llist != NULL);
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REQUIRE(DNS_C_LISTENLIST_VALID(*llist));
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ll = *llist;
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lo = ISC_LIST_HEAD(ll->elements);
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while (lo != NULL) {
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lotmp = ISC_LIST_NEXT(lo, next);
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ISC_LIST_UNLINK(ll->elements, lo, next);
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r = dns_c_lstnon_delete(&lo);
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if (r != ISC_R_SUCCESS) {
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return (r);
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}
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lo = lotmp;
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}
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ll->magic = 0;
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isc_mem_put(ll->mem, ll, sizeof *ll);
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*llist = NULL;
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return (ISC_R_SUCCESS);
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}
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isc_result_t
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dns_c_lstnlist_print(FILE *fp, int indent, dns_c_lstnlist_t *ll,
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in_port_t default_port)
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{
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dns_c_lstnon_t *lo;
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REQUIRE(DNS_C_LISTENLIST_VALID(ll));
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lo = ISC_LIST_HEAD(ll->elements);
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while (lo != NULL) {
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dns_c_printtabs(fp, indent);
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dns_c_lstnon_print(fp, indent, lo, default_port);
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lo = ISC_LIST_NEXT(lo, next);
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fprintf(fp, "\n");
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}
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return (ISC_R_SUCCESS);
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}
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isc_result_t
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dns_c_lstnlistv6_print(FILE *fp, int indent, dns_c_lstnlist_t *ll,
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in_port_t default_port)
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{
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dns_c_lstnon_t *lo;
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REQUIRE(DNS_C_LISTENLIST_VALID(ll));
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lo = ISC_LIST_HEAD(ll->elements);
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while (lo != NULL) {
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dns_c_printtabs(fp, indent);
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dns_c_lstnonv6_print(fp, indent, lo, default_port);
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lo = ISC_LIST_NEXT(lo, next);
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fprintf(fp, "\n");
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}
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return (ISC_R_SUCCESS);
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}
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isc_result_t
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dns_c_lstnon_print(FILE *fp, int indent, dns_c_lstnon_t *lo,
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in_port_t default_port) {
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REQUIRE(lo != NULL);
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REQUIRE(DNS_C_LISTEN_VALID(lo));
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fprintf(fp, "listen-on ");
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if (lo->port != default_port) {
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fprintf(fp, "port %d ", lo->port);
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}
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dns_c_ipmatchlist_print(fp, indent + 1, lo->iml);
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fprintf(fp, ";\n");
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return (ISC_R_SUCCESS);
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}
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isc_result_t
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dns_c_lstnonv6_print(FILE *fp, int indent, dns_c_lstnon_t *lo,
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in_port_t default_port) {
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REQUIRE(lo != NULL);
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REQUIRE(DNS_C_LISTEN_VALID(lo));
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fprintf(fp, "listen-on-v6 ");
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if (lo->port != default_port) {
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fprintf(fp, "port %d ", lo->port);
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}
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dns_c_ipmatchlist_print(fp, indent + 1, lo->iml);
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fprintf(fp, ";\n");
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return (ISC_R_SUCCESS);
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}
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#if 0
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static isc_boolean_t
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checklisten_element(dns_c_ipmatchelement_t *element)
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{
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int pf;
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isc_boolean_t ok = ISC_FALSE;
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switch (element->type) {
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case dns_c_ipmatch_pattern:
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pf = isc_sockaddr_pf(&element->u.direct.address);
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ok = ISC_TF(pf == AF_INET);
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break;
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case dns_c_ipmatch_key:
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case dns_c_ipmatch_localhost:
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case dns_c_ipmatch_localnets:
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ok = ISC_FALSE;
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break;
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case dns_c_ipmatch_any:
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case dns_c_ipmatch_none:
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ok = ISC_TRUE;
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break;
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case dns_c_ipmatch_indirect:
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/* XXX shouldn't be reached */
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break;
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case dns_c_ipmatch_acl:
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/* XXX handle this. */
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break;
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}
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return (ok);
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}
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static isc_boolean_t
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checkv6listen_element(dns_c_ipmatchelement_t *element)
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{
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int pf;
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isc_boolean_t ok = ISC_FALSE;
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switch (element->type) {
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case dns_c_ipmatch_pattern:
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pf = isc_sockaddr_pf(&element->u.direct.address);
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ok = ISC_TF(pf == AF_INET6);
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break;
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case dns_c_ipmatch_key:
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case dns_c_ipmatch_localhost:
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case dns_c_ipmatch_localnets:
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ok = ISC_FALSE;
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break;
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case dns_c_ipmatch_any:
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case dns_c_ipmatch_none:
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ok = ISC_TRUE;
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break;
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case dns_c_ipmatch_indirect:
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/* XXX shouldn't be reached */
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break;
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case dns_c_ipmatch_acl:
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/* XXX handle this. */
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break;
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}
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return (ok);
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}
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#endif
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/*
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* Post confirguation load validation of list-on lists.
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*/
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isc_result_t
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dns_c_lstnlist_validate(dns_c_lstnlist_t *ll)
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{
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#if 0
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dns_c_lstnon_t *lo;
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isc_boolean_t checkval;
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REQUIRE(DNS_C_LISTENLIST_VALID(ll));
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lo = ISC_LIST_HEAD(ll->elements);
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while (lo != NULL) {
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checkval = dns_c_ipmatchlist_walk(lo->iml,
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checklisten_element);
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if (!checkval) {
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isc_log_write(dns_lctx,DNS_LOGCATEGORY_CONFIG,
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DNS_LOGMODULE_CONFIG, ISC_LOG_ERROR,
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"listen-on must have IPv4 "
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"addresses only.");
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return (ISC_R_FAILURE);
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}
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lo = ISC_LIST_NEXT(lo, next);
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}
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return (ISC_R_SUCCESS);
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#else
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UNUSED(ll);
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return (ISC_R_SUCCESS);
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#endif
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}
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isc_result_t
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dns_c_lstnlistv6_validate(dns_c_lstnlist_t *ll)
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{
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#if 0
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dns_c_lstnon_t *lo;
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isc_boolean_t checkval;
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REQUIRE(DNS_C_LISTENLIST_VALID(ll));
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lo = ISC_LIST_HEAD(ll->elements);
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while (lo != NULL) {
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checkval = dns_c_ipmatchlist_walk(lo->iml,
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checkv6listen_element);
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if (!checkval) {
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isc_log_write(dns_lctx,DNS_LOGCATEGORY_CONFIG,
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DNS_LOGMODULE_CONFIG, ISC_LOG_ERROR,
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"listen-on-v6 must have IPv6 "
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"addresses only.");
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return (ISC_R_FAILURE);
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}
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lo = ISC_LIST_NEXT(lo, next);
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}
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return (ISC_R_SUCCESS);
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#else
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UNUSED(ll);
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return (ISC_R_SUCCESS);
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#endif
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}
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