diff options
Diffstat (limited to 'contrib/bind9/lib/dns/peer.c')
| -rw-r--r-- | contrib/bind9/lib/dns/peer.c | 685 |
1 files changed, 0 insertions, 685 deletions
diff --git a/contrib/bind9/lib/dns/peer.c b/contrib/bind9/lib/dns/peer.c deleted file mode 100644 index 7d878b5..0000000 --- a/contrib/bind9/lib/dns/peer.c +++ /dev/null @@ -1,685 +0,0 @@ -/* - * Copyright (C) 2004-2006 Internet Systems Consortium, Inc. ("ISC") - * Copyright (C) 2000, 2001, 2003 Internet Software Consortium. - * - * Permission to use, copy, modify, and 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: peer.c,v 1.19.18.8 2006/02/28 03:10:48 marka Exp $ */ - -/*! \file */ - -#include <config.h> - -#include <isc/mem.h> -#include <isc/string.h> -#include <isc/util.h> -#include <isc/sockaddr.h> - -#include <dns/bit.h> -#include <dns/fixedname.h> -#include <dns/name.h> -#include <dns/peer.h> - -/*% - * Bit positions in the dns_peer_t structure flags field - */ -#define BOGUS_BIT 0 -#define SERVER_TRANSFER_FORMAT_BIT 1 -#define TRANSFERS_BIT 2 -#define PROVIDE_IXFR_BIT 3 -#define REQUEST_IXFR_BIT 4 -#define SUPPORT_EDNS_BIT 5 -#define SERVER_UDPSIZE_BIT 6 -#define SERVER_MAXUDP_BIT 7 - -static void -peerlist_delete(dns_peerlist_t **list); - -static void -peer_delete(dns_peer_t **peer); - -isc_result_t -dns_peerlist_new(isc_mem_t *mem, dns_peerlist_t **list) { - dns_peerlist_t *l; - - REQUIRE(list != NULL); - - l = isc_mem_get(mem, sizeof(*l)); - if (l == NULL) - return (ISC_R_NOMEMORY); - - ISC_LIST_INIT(l->elements); - l->mem = mem; - l->refs = 1; - l->magic = DNS_PEERLIST_MAGIC; - - *list = l; - - return (ISC_R_SUCCESS); -} - -void -dns_peerlist_attach(dns_peerlist_t *source, dns_peerlist_t **target) { - REQUIRE(DNS_PEERLIST_VALID(source)); - REQUIRE(target != NULL); - REQUIRE(*target == NULL); - - source->refs++; - - ENSURE(source->refs != 0xffffffffU); - - *target = source; -} - -void -dns_peerlist_detach(dns_peerlist_t **list) { - dns_peerlist_t *plist; - - REQUIRE(list != NULL); - REQUIRE(*list != NULL); - REQUIRE(DNS_PEERLIST_VALID(*list)); - - plist = *list; - *list = NULL; - - REQUIRE(plist->refs > 0); - - plist->refs--; - - if (plist->refs == 0) - peerlist_delete(&plist); -} - -static void -peerlist_delete(dns_peerlist_t **list) { - dns_peerlist_t *l; - dns_peer_t *server, *stmp; - - REQUIRE(list != NULL); - REQUIRE(DNS_PEERLIST_VALID(*list)); - - l = *list; - - REQUIRE(l->refs == 0); - - server = ISC_LIST_HEAD(l->elements); - while (server != NULL) { - stmp = ISC_LIST_NEXT(server, next); - ISC_LIST_UNLINK(l->elements, server, next); - dns_peer_detach(&server); - server = stmp; - } - - l->magic = 0; - isc_mem_put(l->mem, l, sizeof(*l)); - - *list = NULL; -} - -void -dns_peerlist_addpeer(dns_peerlist_t *peers, dns_peer_t *peer) { - dns_peer_t *p = NULL; - - dns_peer_attach(peer, &p); - - /* - * More specifics to front of list. - */ - for (p = ISC_LIST_HEAD(peers->elements); - p != NULL; - p = ISC_LIST_NEXT(p, next)) - if (p->prefixlen < peer->prefixlen) - break; - - if (p != NULL) - ISC_LIST_INSERTBEFORE(peers->elements, p, peer, next); - else - ISC_LIST_APPEND(peers->elements, peer, next); - -} - -isc_result_t -dns_peerlist_peerbyaddr(dns_peerlist_t *servers, - isc_netaddr_t *addr, dns_peer_t **retval) -{ - dns_peer_t *server; - isc_result_t res; - - REQUIRE(retval != NULL); - REQUIRE(DNS_PEERLIST_VALID(servers)); - - server = ISC_LIST_HEAD(servers->elements); - while (server != NULL) { - if (isc_netaddr_eqprefix(addr, &server->address, - server->prefixlen)) - break; - - server = ISC_LIST_NEXT(server, next); - } - - if (server != NULL) { - *retval = server; - res = ISC_R_SUCCESS; - } else { - res = ISC_R_NOTFOUND; - } - - return (res); -} - - - -isc_result_t -dns_peerlist_currpeer(dns_peerlist_t *peers, dns_peer_t **retval) { - dns_peer_t *p = NULL; - - p = ISC_LIST_TAIL(peers->elements); - - dns_peer_attach(p, retval); - - return (ISC_R_SUCCESS); -} - -isc_result_t -dns_peer_new(isc_mem_t *mem, isc_netaddr_t *addr, dns_peer_t **peerptr) { - unsigned int prefixlen = 0; - - REQUIRE(peerptr != NULL); - switch(addr->family) { - case AF_INET: - prefixlen = 32; - break; - case AF_INET6: - prefixlen = 128; - break; - default: - INSIST(0); - } - - return (dns_peer_newprefix(mem, addr, prefixlen, peerptr)); -} - -isc_result_t -dns_peer_newprefix(isc_mem_t *mem, isc_netaddr_t *addr, unsigned int prefixlen, - dns_peer_t **peerptr) -{ - dns_peer_t *peer; - - REQUIRE(peerptr != NULL); - - peer = isc_mem_get(mem, sizeof(*peer)); - if (peer == NULL) - return (ISC_R_NOMEMORY); - - peer->magic = DNS_PEER_MAGIC; - peer->address = *addr; - peer->prefixlen = prefixlen; - peer->mem = mem; - peer->bogus = ISC_FALSE; - peer->transfer_format = dns_one_answer; - peer->transfers = 0; - peer->request_ixfr = ISC_FALSE; - peer->provide_ixfr = ISC_FALSE; - peer->key = NULL; - peer->refs = 1; - peer->transfer_source = NULL; - peer->notify_source = NULL; - peer->query_source = NULL; - - memset(&peer->bitflags, 0x0, sizeof(peer->bitflags)); - - ISC_LINK_INIT(peer, next); - - *peerptr = peer; - - return (ISC_R_SUCCESS); -} - -void -dns_peer_attach(dns_peer_t *source, dns_peer_t **target) { - REQUIRE(DNS_PEER_VALID(source)); - REQUIRE(target != NULL); - REQUIRE(*target == NULL); - - source->refs++; - - ENSURE(source->refs != 0xffffffffU); - - *target = source; -} - -void -dns_peer_detach(dns_peer_t **peer) { - dns_peer_t *p; - - REQUIRE(peer != NULL); - REQUIRE(*peer != NULL); - REQUIRE(DNS_PEER_VALID(*peer)); - - p = *peer; - - REQUIRE(p->refs > 0); - - *peer = NULL; - p->refs--; - - if (p->refs == 0) - peer_delete(&p); -} - -static void -peer_delete(dns_peer_t **peer) { - dns_peer_t *p; - isc_mem_t *mem; - - REQUIRE(peer != NULL); - REQUIRE(DNS_PEER_VALID(*peer)); - - p = *peer; - - REQUIRE(p->refs == 0); - - mem = p->mem; - p->mem = NULL; - p->magic = 0; - - if (p->key != NULL) { - dns_name_free(p->key, mem); - isc_mem_put(mem, p->key, sizeof(dns_name_t)); - } - - if (p->transfer_source != NULL) { - isc_mem_put(mem, p->transfer_source, - sizeof(*p->transfer_source)); - } - - isc_mem_put(mem, p, sizeof(*p)); - - *peer = NULL; -} - -isc_result_t -dns_peer_setbogus(dns_peer_t *peer, isc_boolean_t newval) { - isc_boolean_t existed; - - REQUIRE(DNS_PEER_VALID(peer)); - - existed = DNS_BIT_CHECK(BOGUS_BIT, &peer->bitflags); - - peer->bogus = newval; - DNS_BIT_SET(BOGUS_BIT, &peer->bitflags); - - return (existed ? ISC_R_EXISTS : ISC_R_SUCCESS); -} - -isc_result_t -dns_peer_getbogus(dns_peer_t *peer, isc_boolean_t *retval) { - REQUIRE(DNS_PEER_VALID(peer)); - REQUIRE(retval != NULL); - - if (DNS_BIT_CHECK(BOGUS_BIT, &peer->bitflags)) { - *retval = peer->bogus; - return (ISC_R_SUCCESS); - } else - return (ISC_R_NOTFOUND); -} - - -isc_result_t -dns_peer_setprovideixfr(dns_peer_t *peer, isc_boolean_t newval) { - isc_boolean_t existed; - - REQUIRE(DNS_PEER_VALID(peer)); - - existed = DNS_BIT_CHECK(PROVIDE_IXFR_BIT, &peer->bitflags); - - peer->provide_ixfr = newval; - DNS_BIT_SET(PROVIDE_IXFR_BIT, &peer->bitflags); - - return (existed ? ISC_R_EXISTS : ISC_R_SUCCESS); -} - -isc_result_t -dns_peer_getprovideixfr(dns_peer_t *peer, isc_boolean_t *retval) { - REQUIRE(DNS_PEER_VALID(peer)); - REQUIRE(retval != NULL); - - if (DNS_BIT_CHECK(PROVIDE_IXFR_BIT, &peer->bitflags)) { - *retval = peer->provide_ixfr; - return (ISC_R_SUCCESS); - } else { - return (ISC_R_NOTFOUND); - } -} - -isc_result_t -dns_peer_setrequestixfr(dns_peer_t *peer, isc_boolean_t newval) { - isc_boolean_t existed; - - REQUIRE(DNS_PEER_VALID(peer)); - - existed = DNS_BIT_CHECK(REQUEST_IXFR_BIT, &peer->bitflags); - - peer->request_ixfr = newval; - DNS_BIT_SET(REQUEST_IXFR_BIT, &peer->bitflags); - - return (existed ? ISC_R_EXISTS : ISC_R_SUCCESS); -} - -isc_result_t -dns_peer_getrequestixfr(dns_peer_t *peer, isc_boolean_t *retval) { - REQUIRE(DNS_PEER_VALID(peer)); - REQUIRE(retval != NULL); - - if (DNS_BIT_CHECK(REQUEST_IXFR_BIT, &peer->bitflags)) { - *retval = peer->request_ixfr; - return (ISC_R_SUCCESS); - } else - return (ISC_R_NOTFOUND); -} - -isc_result_t -dns_peer_setsupportedns(dns_peer_t *peer, isc_boolean_t newval) { - isc_boolean_t existed; - - REQUIRE(DNS_PEER_VALID(peer)); - - existed = DNS_BIT_CHECK(SUPPORT_EDNS_BIT, &peer->bitflags); - - peer->support_edns = newval; - DNS_BIT_SET(SUPPORT_EDNS_BIT, &peer->bitflags); - - return (existed ? ISC_R_EXISTS : ISC_R_SUCCESS); -} - -isc_result_t -dns_peer_getsupportedns(dns_peer_t *peer, isc_boolean_t *retval) { - REQUIRE(DNS_PEER_VALID(peer)); - REQUIRE(retval != NULL); - - if (DNS_BIT_CHECK(SUPPORT_EDNS_BIT, &peer->bitflags)) { - *retval = peer->support_edns; - return (ISC_R_SUCCESS); - } else - return (ISC_R_NOTFOUND); -} - -isc_result_t -dns_peer_settransfers(dns_peer_t *peer, isc_uint32_t newval) { - isc_boolean_t existed; - - REQUIRE(DNS_PEER_VALID(peer)); - - existed = DNS_BIT_CHECK(TRANSFERS_BIT, &peer->bitflags); - - peer->transfers = newval; - DNS_BIT_SET(TRANSFERS_BIT, &peer->bitflags); - - return (existed ? ISC_R_EXISTS : ISC_R_SUCCESS); -} - -isc_result_t -dns_peer_gettransfers(dns_peer_t *peer, isc_uint32_t *retval) { - REQUIRE(DNS_PEER_VALID(peer)); - REQUIRE(retval != NULL); - - if (DNS_BIT_CHECK(TRANSFERS_BIT, &peer->bitflags)) { - *retval = peer->transfers; - return (ISC_R_SUCCESS); - } else { - return (ISC_R_NOTFOUND); - } -} - -isc_result_t -dns_peer_settransferformat(dns_peer_t *peer, dns_transfer_format_t newval) { - isc_boolean_t existed; - - REQUIRE(DNS_PEER_VALID(peer)); - - existed = DNS_BIT_CHECK(SERVER_TRANSFER_FORMAT_BIT, - &peer->bitflags); - - peer->transfer_format = newval; - DNS_BIT_SET(SERVER_TRANSFER_FORMAT_BIT, &peer->bitflags); - - return (existed ? ISC_R_EXISTS : ISC_R_SUCCESS); -} - -isc_result_t -dns_peer_gettransferformat(dns_peer_t *peer, dns_transfer_format_t *retval) { - REQUIRE(DNS_PEER_VALID(peer)); - REQUIRE(retval != NULL); - - if (DNS_BIT_CHECK(SERVER_TRANSFER_FORMAT_BIT, &peer->bitflags)) { - *retval = peer->transfer_format; - return (ISC_R_SUCCESS); - } else { - return (ISC_R_NOTFOUND); - } -} - -isc_result_t -dns_peer_getkey(dns_peer_t *peer, dns_name_t **retval) { - REQUIRE(DNS_PEER_VALID(peer)); - REQUIRE(retval != NULL); - - if (peer->key != NULL) { - *retval = peer->key; - } - - return (peer->key == NULL ? ISC_R_NOTFOUND : ISC_R_SUCCESS); -} - -isc_result_t -dns_peer_setkey(dns_peer_t *peer, dns_name_t **keyval) { - isc_boolean_t exists = ISC_FALSE; - - if (peer->key != NULL) { - dns_name_free(peer->key, peer->mem); - isc_mem_put(peer->mem, peer->key, sizeof(dns_name_t)); - exists = ISC_TRUE; - } - - peer->key = *keyval; - *keyval = NULL; - - return (exists ? ISC_R_EXISTS : ISC_R_SUCCESS); -} - -isc_result_t -dns_peer_setkeybycharp(dns_peer_t *peer, const char *keyval) { - isc_buffer_t b; - dns_fixedname_t fname; - dns_name_t *name; - isc_result_t result; - - dns_fixedname_init(&fname); - isc_buffer_init(&b, keyval, strlen(keyval)); - isc_buffer_add(&b, strlen(keyval)); - result = dns_name_fromtext(dns_fixedname_name(&fname), &b, - dns_rootname, ISC_FALSE, NULL); - if (result != ISC_R_SUCCESS) - return (result); - - name = isc_mem_get(peer->mem, sizeof(dns_name_t)); - if (name == NULL) - return (ISC_R_NOMEMORY); - - dns_name_init(name, NULL); - result = dns_name_dup(dns_fixedname_name(&fname), peer->mem, name); - if (result != ISC_R_SUCCESS) { - isc_mem_put(peer->mem, name, sizeof(dns_name_t)); - return (result); - } - - result = dns_peer_setkey(peer, &name); - if (result != ISC_R_SUCCESS) - isc_mem_put(peer->mem, name, sizeof(dns_name_t)); - - return (result); -} - -isc_result_t -dns_peer_settransfersource(dns_peer_t *peer, - const isc_sockaddr_t *transfer_source) -{ - REQUIRE(DNS_PEER_VALID(peer)); - - if (peer->transfer_source != NULL) { - isc_mem_put(peer->mem, peer->transfer_source, - sizeof(*peer->transfer_source)); - peer->transfer_source = NULL; - } - if (transfer_source != NULL) { - peer->transfer_source = isc_mem_get(peer->mem, - sizeof(*peer->transfer_source)); - if (peer->transfer_source == NULL) - return (ISC_R_NOMEMORY); - - *peer->transfer_source = *transfer_source; - } - return (ISC_R_SUCCESS); -} - -isc_result_t -dns_peer_gettransfersource(dns_peer_t *peer, isc_sockaddr_t *transfer_source) { - REQUIRE(DNS_PEER_VALID(peer)); - REQUIRE(transfer_source != NULL); - - if (peer->transfer_source == NULL) - return (ISC_R_NOTFOUND); - *transfer_source = *peer->transfer_source; - return (ISC_R_SUCCESS); -} - -isc_result_t -dns_peer_setnotifysource(dns_peer_t *peer, - const isc_sockaddr_t *notify_source) -{ - REQUIRE(DNS_PEER_VALID(peer)); - - if (peer->notify_source != NULL) { - isc_mem_put(peer->mem, peer->notify_source, - sizeof(*peer->notify_source)); - peer->notify_source = NULL; - } - if (notify_source != NULL) { - peer->notify_source = isc_mem_get(peer->mem, - sizeof(*peer->notify_source)); - if (peer->notify_source == NULL) - return (ISC_R_NOMEMORY); - - *peer->notify_source = *notify_source; - } - return (ISC_R_SUCCESS); -} - -isc_result_t -dns_peer_getnotifysource(dns_peer_t *peer, isc_sockaddr_t *notify_source) { - REQUIRE(DNS_PEER_VALID(peer)); - REQUIRE(notify_source != NULL); - - if (peer->notify_source == NULL) - return (ISC_R_NOTFOUND); - *notify_source = *peer->notify_source; - return (ISC_R_SUCCESS); -} - -isc_result_t -dns_peer_setquerysource(dns_peer_t *peer, const isc_sockaddr_t *query_source) { - REQUIRE(DNS_PEER_VALID(peer)); - - if (peer->query_source != NULL) { - isc_mem_put(peer->mem, peer->query_source, - sizeof(*peer->query_source)); - peer->query_source = NULL; - } - if (query_source != NULL) { - peer->query_source = isc_mem_get(peer->mem, - sizeof(*peer->query_source)); - if (peer->query_source == NULL) - return (ISC_R_NOMEMORY); - - *peer->query_source = *query_source; - } - return (ISC_R_SUCCESS); -} - -isc_result_t -dns_peer_getquerysource(dns_peer_t *peer, isc_sockaddr_t *query_source) { - REQUIRE(DNS_PEER_VALID(peer)); - REQUIRE(query_source != NULL); - - if (peer->query_source == NULL) - return (ISC_R_NOTFOUND); - *query_source = *peer->query_source; - return (ISC_R_SUCCESS); -} - -isc_result_t -dns_peer_setudpsize(dns_peer_t *peer, isc_uint16_t udpsize) { - isc_boolean_t existed; - - REQUIRE(DNS_PEER_VALID(peer)); - - existed = DNS_BIT_CHECK(SERVER_UDPSIZE_BIT, &peer->bitflags); - - peer->udpsize = udpsize; - DNS_BIT_SET(SERVER_UDPSIZE_BIT, &peer->bitflags); - - return (existed ? ISC_R_EXISTS : ISC_R_SUCCESS); -} - -isc_result_t -dns_peer_getudpsize(dns_peer_t *peer, isc_uint16_t *udpsize) { - - REQUIRE(DNS_PEER_VALID(peer)); - REQUIRE(udpsize != NULL); - - if (DNS_BIT_CHECK(SERVER_UDPSIZE_BIT, &peer->bitflags)) { - *udpsize = peer->udpsize; - return (ISC_R_SUCCESS); - } else { - return (ISC_R_NOTFOUND); - } -} - -isc_result_t -dns_peer_setmaxudp(dns_peer_t *peer, isc_uint16_t maxudp) { - isc_boolean_t existed; - - REQUIRE(DNS_PEER_VALID(peer)); - - existed = DNS_BIT_CHECK(SERVER_MAXUDP_BIT, &peer->bitflags); - - peer->maxudp = maxudp; - DNS_BIT_SET(SERVER_MAXUDP_BIT, &peer->bitflags); - - return (existed ? ISC_R_EXISTS : ISC_R_SUCCESS); -} - -isc_result_t -dns_peer_getmaxudp(dns_peer_t *peer, isc_uint16_t *maxudp) { - - REQUIRE(DNS_PEER_VALID(peer)); - REQUIRE(maxudp != NULL); - - if (DNS_BIT_CHECK(SERVER_MAXUDP_BIT, &peer->bitflags)) { - *maxudp = peer->maxudp; - return (ISC_R_SUCCESS); - } else { - return (ISC_R_NOTFOUND); - } -} |
