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mirror of https://github.com/samba-team/samba.git synced 2025-01-06 13:18:07 +03:00
samba-mirror/source4/rpc_server/dnsserver/dnsutils.c
Samuel Cabrero fcecdfa8e5 s4:dnsserver: Rename dns_name_equal() to samba_dns_name_equal()
This function already exists in bind9 but takes different arguments, so when
the DLZ is loaded and this function is called bind crashes:

  named[1523]: samba_dlz: allowing update of signer=DESKTOP-8BUKMBK\$\@AFOREST.AD name=118.101.168.192.in-addr.arpa tcpaddr=192.168.101.118  type=PTR key=1264-ms-7.1-2ac9.9ef238e1-9747-11ed-9f95-525400dc6981/159/0
  named[1523]: samba_dlz: allowing update of signer=DESKTOP-8BUKMBK\$\@AFOREST.AD name=118.101.168.192.in-addr.arpa tcpaddr=192.168.101.118  type=PTR key=1264-ms-7.1-2ac9.9ef238e1-9747-11ed-9f95-525400dc6981/159/0
  named[1523]: client @0x7f26caa90f68 192.168.101.118#58223/key DESKTOP-8BUKMBK\$\@AFOREST.AD: updating zone '101.168.192.in-addr.arpa/NONE': deleting rrset at '118.101.168.192.in-addr.ar
  named[1523]: name.c:664: REQUIRE(((name1) != ((void *)0) && ((const isc__magic_t *)(name1))->magic == ((('D') << 24 | ('N') << 16 | ('S') << 8 | ('n'))))) failed, back trace

Backtrace:

  #0  0x00007f2716c957ec in __pthread_kill_implementation () from /lib64/libc.so.6
  #1  0x00007f2716c42816 in raise () from /lib64/libc.so.6
  #2  0x00007f2716c2b81c in abort () from /lib64/libc.so.6
  #3  0x000055d4de847995 in assertion_failed (file=<optimized out>, line=<optimized out>,
      type=<optimized out>, cond=<optimized out>) at /usr/src/debug/bind-9.18.10/bin/named/main.c:237
  #4  0x00007f27176388fc in isc_assertion_failed (file=file@entry=0x7f27173b0df6 "name.c",
      line=line@entry=664, type=type@entry=isc_assertiontype_require,
      cond=cond@entry=0x7f27173b0268 "((name1) != ((void *)0) && ((const isc__magic_t *)(name1))->magic == ((('D') << 24 | ('N') << 16 | ('S') << 8 | ('n'))))")
      at /usr/src/debug/bind-9.18.10/lib/isc/assertions.c:48
  #5  0x00007f27172946f9 in dns_name_equal (name1=<optimized out>, name2=<optimized out>)
      at /usr/src/debug/bind-9.18.10/lib/dns/name.c:664

  **** Here bind's dns_name_equal() is called instead of samba's dns_name_equal() ****

  #6  0x00007f27077ad6f2 in dns_record_match (rec1=0x7f26f8042d70, rec2=0x7f26f8044d10)
      at ../../source4/dns_server/dnsserver_common.c:1346
  #7  0x00007f271404732c in b9_record_match (rec1=0x7f26f8042d70, rec2=0x7f26f8044d10)
      at ../../source4/dns_server/dlz_bind9.c:1830
  #8  0x00007f2714047daa in dlz_subrdataset (name=0x7f2706ff82f0 "118.101.168.192.in-addr.arpa",
      rdatastr=0x7f26c9c10000 "118.101.168.192.in-addr.arpa.\t1200\tIN\tPTR\tDESKTOP-8BUKMBK.aforest.ad.",
      dbdata=0x7f271003d300, version=0x7f26f8044b20) at ../../source4/dns_server/dlz_bind9.c:2077
  #9  0x000055d4de84afb4 in dlopen_dlz_subrdataset (name=0x7f2706ff82f0 "118.101.168.192.in-addr.arpa",
      rdatastr=<optimized out>, driverarg=<optimized out>, dbdata=0x7f270430f680, version=<optimized out>)
      at /usr/src/debug/bind-9.18.10/bin/named/dlz_dlopen_driver.c:483
  #10 0x00007f271738e734 in modrdataset.constprop.0 (db=0x7f2704291740, node=0x7f26c9c006e0,
      version=0x7f26f8044b20, rdataset=0x7f2706ff8830,
      mod_function=0x55d4de84af80 <dlopen_dlz_subrdataset>, options=<optimized out>)
      at /usr/src/debug/bind-9.18.10/lib/dns/sdlz.c:1107
  #11 0x00007f2717251855 in diff_apply (diff=diff@entry=0x7f2706ff8df0, db=db@entry=0x7f2704291740,
      ver=ver@entry=0x7f26f8044b20, warn=warn@entry=true) at /usr/src/debug/bind-9.18.10/lib/dns/diff.c:370
  #12 0x00007f2717251c8a in dns_diff_apply (diff=diff@entry=0x7f2706ff8df0, db=db@entry=0x7f2704291740,
      ver=ver@entry=0x7f26f8044b20) at /usr/src/debug/bind-9.18.10/lib/dns/diff.c:465
  #13 0x00007f2717d105aa in do_one_tuple (tuple=tuple@entry=0x7f2706ff8e50, db=db@entry=0x7f2704291740,
      ver=ver@entry=0x7f26f8044b20, diff=diff@entry=0x7f2706ff9400)
      at /usr/src/debug/bind-9.18.10/lib/ns/update.c:454
  #14 0x00007f2717d10fff in update_one_rr (rdata=0x7f2706ff8ee8, ttl=<optimized out>,
      name=<optimized out>, op=DNS_DIFFOP_DEL, diff=0x7f2706ff9400, ver=0x7f26f8044b20, db=0x7f2704291740)
      at /usr/src/debug/bind-9.18.10/lib/ns/update.c:505
  #15 delete_if_action (data=<optimized out>, rr=0x7f2706ff8ee0)
      at /usr/src/debug/bind-9.18.10/lib/ns/update.c:1427
  #16 0x00007f2717d10ccd in foreach_rr (db=0x7f2704291740, ver=<optimized out>, name=0x7f26caa61d00,
      type=<optimized out>, covers=<optimized out>,
      rr_action=rr_action@entry=0x7f2717d10f60 <delete_if_action>, rr_action_data=0x7f2706ff9280)
      at /usr/src/debug/bind-9.18.10/lib/ns/update.c:736
  #17 0x00007f2717d10e76 in delete_if (predicate=predicate@entry=0x7f2717d0fb10 <true_p>,
      db=<optimized out>, ver=<optimized out>, name=<optimized out>, type=<optimized out>,
      covers=<optimized out>, update_rr=0x7f2706ff94b0, diff=0x7f2706ff9400)
      at /usr/src/debug/bind-9.18.10/lib/ns/update.c:1454
  #18 0x00007f2717d1bccd in update_action (task=<optimized out>, event=<optimized out>)
      at /usr/src/debug/bind-9.18.10/lib/ns/update.c:3299
  #19 0x00007f271765eb4c in task_run (task=0x7f27155ccf00)
      at /usr/src/debug/bind-9.18.10/lib/isc/task.c:823
  #20 isc_task_run (task=0x7f27155ccf00) at /usr/src/debug/bind-9.18.10/lib/isc/task.c:904
  #21 0x00007f271762cb12 in isc__nm_async_task (worker=0x7f2716236560, ev0=0x7f26caa07000)
      at netmgr/netmgr.c:840
  #22 process_netievent (worker=worker@entry=0x7f2716236560, ievent=0x7f26caa07000) at netmgr/netmgr.c:918
  #23 0x00007f271762d197 in process_queue (worker=worker@entry=0x7f2716236560,
      type=type@entry=NETIEVENT_TASK) at netmgr/netmgr.c:1011
  #24 0x00007f271762d3b3 in process_all_queues (worker=0x7f2716236560) at netmgr/netmgr.c:765
  #25 async_cb (handle=0x7f27162368c0) at netmgr/netmgr.c:794
  #26 0x00007f2717c4cb0d in uv__async_io (loop=0x7f2716236570, w=<optimized out>, events=<optimized out>)
      at src/unix/async.c:163
  #27 0x00007f2717c6825d in uv__io_poll (loop=0x7f2716236570, timeout=<optimized out>)
      at src/unix/epoll.c:374
  #28 0x00007f2717c5247a in uv__io_poll (timeout=<optimized out>, loop=0x7f2716236570)
      at src/unix/udp.c:122
  #29 uv_run (loop=loop@entry=0x7f2716236570, mode=mode@entry=UV_RUN_DEFAULT) at src/unix/core.c:406
  #30 0x00007f271762d834 in nm_thread (worker0=0x7f2716236560) at netmgr/netmgr.c:696
  #31 0x00007f27176627f5 in isc__trampoline_run (arg=0x55d4dfe3ad70)
      at /usr/src/debug/bind-9.18.10/lib/isc/trampoline.c:189
  #32 0x00007f2716c9398d in start_thread () from /lib64/libc.so.6
  #33 0x00007f2716d19344 in clone () from /lib64/libc.so.6

BUG: https://bugzilla.samba.org/show_bug.cgi?id=14030

Signed-off-by: Samuel Cabrero <scabrero@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>

Autobuild-User(master): Samuel Cabrero <scabrero@samba.org>
Autobuild-Date(master): Thu Jan 19 10:20:27 UTC 2023 on atb-devel-224
2023-01-19 10:20:27 +00:00

415 lines
12 KiB
C

/*
Unix SMB/CIFS implementation.
DNS Server
Copyright (C) Amitay Isaacs 2011
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "dnsserver.h"
#include "rpc_server/common/common.h"
#include "dns_server/dnsserver_common.h"
#include "dsdb/samdb/samdb.h"
#include "lib/socket/netif.h"
#include "lib/util/util_net.h"
#include "dnsserver_common.h"
#undef strcasecmp
static struct DNS_ADDR_ARRAY *fill_dns_addr_array(TALLOC_CTX *mem_ctx,
struct loadparm_context *lp_ctx,
bool listen_only)
{
struct interface *ifaces;
int num_interfaces, i;
struct DNS_ADDR_ARRAY *dns_addr_array;
const char *ipstr;
bool have_ipv4, have_ipv6;
uint16_t family;
have_ipv4 = have_ipv6 = false;
if (!listen_only) {
/*
Return all interfaces from kernel
Not implemented!
*/
return NULL;
}
/* Only the used interfaces */
load_interface_list(mem_ctx, lp_ctx, &ifaces);
num_interfaces = iface_list_count(ifaces);
dns_addr_array = talloc_zero(mem_ctx, struct DNS_ADDR_ARRAY);
if (dns_addr_array == NULL) {
goto nomem;
}
dns_addr_array->MaxCount = num_interfaces;
dns_addr_array->AddrCount = num_interfaces;
if (num_interfaces == 0) {
goto nomem;
}
dns_addr_array->AddrArray = talloc_zero_array(mem_ctx, struct DNS_ADDR,
num_interfaces);
if (!dns_addr_array->AddrArray) {
TALLOC_FREE(dns_addr_array);
goto nomem;
}
for (i = 0; i < num_interfaces; i++) {
int ret;
ipstr = iface_list_n_ip(ifaces, i);
if (is_ipaddress_v4(ipstr)) {
have_ipv4 = true;
dns_addr_array->AddrArray[i].MaxSa[0] = 0x02;
ret = inet_pton(AF_INET, ipstr,
&dns_addr_array->AddrArray[i].MaxSa[4]);
} else {
have_ipv6 = true;
dns_addr_array->AddrArray[i].MaxSa[0] = 0x17;
ret = inet_pton(AF_INET6, ipstr,
&dns_addr_array->AddrArray[i].MaxSa[8]);
}
if (ret != 1) { /*yep, 1 means success for inet_pton */
DBG_ERR("Interface %d address (%s) is invalid\n",
i, ipstr);
goto nomem;
}
}
if (have_ipv4 && have_ipv6) {
family = 0; /* mixed: MS-DNSP */
} else if (have_ipv4 && !have_ipv6) {
family = AF_INET;
} else {
family = AF_INET6;
}
dns_addr_array->Family = family;
nomem:
talloc_free(ifaces);
return dns_addr_array;
}
struct dnsserver_serverinfo *dnsserver_init_serverinfo(TALLOC_CTX *mem_ctx,
struct loadparm_context *lp_ctx,
struct ldb_context *samdb)
{
struct dnsserver_serverinfo *serverinfo;
struct dcerpc_server_info *dinfo;
struct ldb_dn *domain_dn, *forest_dn;
serverinfo = talloc_zero(mem_ctx, struct dnsserver_serverinfo);
if (serverinfo == NULL) {
return NULL;
}
dinfo = lpcfg_dcerpc_server_info(mem_ctx, lp_ctx);
if (dinfo) {
serverinfo->dwVersion = (dinfo->version_build & 0x0000FFFF) << 16 |
(dinfo->version_minor & 0x000000FF) << 8 |
(dinfo->version_major & 0x000000FF);
talloc_free(dinfo);
} else {
serverinfo->dwVersion = 0x0ECE0205; /* build, os_minor, os_major */;
}
serverinfo->fBootMethod = DNS_BOOT_METHOD_DIRECTORY;
serverinfo->fAdminConfigured = 0;
serverinfo->fAllowUpdate = 1;
serverinfo->fDsAvailable = 1;
serverinfo->pszServerName = talloc_asprintf(mem_ctx, "%s.%s",
lpcfg_netbios_name(lp_ctx),
lpcfg_dnsdomain(lp_ctx));
domain_dn = ldb_get_default_basedn(samdb);
forest_dn = ldb_get_root_basedn(samdb);
serverinfo->pszDsContainer = talloc_asprintf(mem_ctx,
"CN=MicrosoftDNS,DC=DomainDnsZones,%s",
ldb_dn_get_linearized(domain_dn));
serverinfo->dwDsForestVersion = dsdb_forest_functional_level(samdb);
serverinfo->dwDsDomainVersion = dsdb_functional_level(samdb);
serverinfo->dwDsDsaVersion = dsdb_dc_functional_level(samdb);
serverinfo->pszDomainName = samdb_dn_to_dns_domain(mem_ctx, domain_dn);
serverinfo->pszForestName = samdb_dn_to_dns_domain(mem_ctx, forest_dn);
serverinfo->pszDomainDirectoryPartition = talloc_asprintf(mem_ctx,
"DC=DomainDnsZones,%s",
ldb_dn_get_linearized(domain_dn));
serverinfo->pszForestDirectoryPartition = talloc_asprintf(mem_ctx,
"DC=ForestDnsZones,%s",
ldb_dn_get_linearized(forest_dn));
/* IP addresses on which the DNS server listens for DNS requests */
serverinfo->aipListenAddrs = fill_dns_addr_array(mem_ctx, lp_ctx, true);
/* All IP addresses available on the server
* Not implemented!
* Use same as listen addresses
*/
serverinfo->aipServerAddrs = serverinfo->aipListenAddrs;
serverinfo->aipForwarders = NULL;
serverinfo->aipLogFilter = NULL;
serverinfo->pwszLogFilePath = NULL;
serverinfo->dwLogLevel = 0;
serverinfo->dwDebugLevel = 0;
serverinfo->dwEventLogLevel = DNS_EVENT_LOG_INFORMATION_TYPE;
serverinfo->dwLogFileMaxSize = 0;
serverinfo->dwForwardTimeout = 3; /* seconds (default) */
serverinfo->dwRpcProtocol = 5;
serverinfo->dwNameCheckFlag = DNS_ALLOW_MULTIBYTE_NAMES;
serverinfo->cAddressAnswerLimit = 0;
serverinfo->dwRecursionRetry = 3; /* seconds (default) */
serverinfo->dwRecursionTimeout = 8; /* seconds (default) */
serverinfo->dwMaxCacheTtl = 0x00015180; /* 1 day (default) */
serverinfo->dwDsPollingInterval = 0xB4; /* 3 minutes (default) */
serverinfo->dwLocalNetPriorityNetMask = 0x000000FF;
serverinfo->dwScavengingInterval = lpcfg_parm_int(
lp_ctx, NULL, "dnsserver", "ScavengingInterval", 24 * 7);
serverinfo->dwDefaultRefreshInterval = lpcfg_parm_int(
lp_ctx, NULL, "dnsserver", "DefaultRefreshInterval", 24 * 3);
serverinfo->dwDefaultNoRefreshInterval = lpcfg_parm_int(
lp_ctx, NULL, "dnsserver", "DefaultNoRefreshInterval", 24 * 3);
serverinfo->dwLastScavengeTime = 0;
serverinfo->fAutoReverseZones = 0;
serverinfo->fAutoCacheUpdate = 0;
serverinfo->fRecurseAfterForwarding = 0;
serverinfo->fForwardDelegations = 1;
serverinfo->fNoRecursion = 0;
serverinfo->fSecureResponses = 0;
serverinfo->fRoundRobin = 1;
serverinfo->fLocalNetPriority = 0;
serverinfo->fBindSecondaries = 0;
serverinfo->fWriteAuthorityNs = 0;
serverinfo->fStrictFileParsing = 0;
serverinfo->fLooseWildcarding = 0 ;
serverinfo->fDefaultAgingState = 0;
return serverinfo;
}
struct dnsserver_zoneinfo *dnsserver_init_zoneinfo(struct dnsserver_zone *zone,
struct dnsserver_serverinfo *serverinfo)
{
struct dnsserver_zoneinfo *zoneinfo;
uint32_t fReverse;
const char *revzone = "in-addr.arpa";
const char *revzone6 = "ip6.arpa";
int len1, len2;
unsigned int i = 0;
zoneinfo = talloc_zero(zone, struct dnsserver_zoneinfo);
if (zoneinfo == NULL) {
return NULL;
}
/* If the zone name ends with in-addr.arpa, it's reverse zone */
/* If the zone name ends with ip6.arpa, it's reverse zone (IPv6) */
fReverse = 0;
len1 = strlen(zone->name);
len2 = strlen(revzone);
if (len1 > len2 && strcasecmp(&zone->name[len1-len2], revzone) == 0) {
fReverse = 1;
} else {
len2 = strlen(revzone6);
if (len1 > len2 && strcasecmp(&zone->name[len1-len2], revzone6) == 0) {
fReverse = 1;
}
}
zoneinfo->Version = 0x32;
zoneinfo->Flags = DNS_RPC_ZONE_DSINTEGRATED;
if (strcmp(zone->name, ".") == 0) {
zoneinfo->dwZoneType = DNS_ZONE_TYPE_CACHE;
zoneinfo->fAllowUpdate = DNS_ZONE_UPDATE_OFF;
zoneinfo->fSecureSecondaries = DNS_ZONE_SECSECURE_NO_SECURITY;
zoneinfo->fNotifyLevel = DNS_ZONE_NOTIFY_OFF;
zoneinfo->dwNoRefreshInterval = 0;
zoneinfo->dwRefreshInterval = 0;
} else {
zoneinfo->Flags |= DNS_RPC_ZONE_UPDATE_SECURE;
zoneinfo->dwZoneType = DNS_ZONE_TYPE_PRIMARY;
zoneinfo->fAllowUpdate = DNS_ZONE_UPDATE_SECURE;
zoneinfo->fSecureSecondaries = DNS_ZONE_SECSECURE_NO_XFER;
zoneinfo->fNotifyLevel = DNS_ZONE_NOTIFY_LIST_ONLY;
zoneinfo->dwNoRefreshInterval = serverinfo->dwDefaultNoRefreshInterval;
zoneinfo->dwRefreshInterval = serverinfo->dwDefaultRefreshInterval;
}
zoneinfo->fReverse = fReverse;
zoneinfo->fPaused = 0;
zoneinfo->fShutdown = 0;
zoneinfo->fAutoCreated = 0;
zoneinfo->fUseDatabase = 1;
zoneinfo->pszDataFile = NULL;
zoneinfo->aipMasters = NULL;
zoneinfo->aipSecondaries = NULL;
zoneinfo->aipNotify = NULL;
zoneinfo->fUseWins = 0;
zoneinfo->fUseNbstat = 0;
zoneinfo->fAging = 0;
zoneinfo->dwAvailForScavengeTime = 0;
zoneinfo->aipScavengeServers = NULL;
zoneinfo->dwForwarderTimeout = 0;
zoneinfo->fForwarderSlave = 0;
zoneinfo->aipLocalMasters = NULL;
zoneinfo->pwszZoneDn = discard_const_p(char, ldb_dn_get_linearized(zone->zone_dn));
zoneinfo->dwLastSuccessfulSoaCheck = 0;
zoneinfo->dwLastSuccessfulXfr = 0;
zoneinfo->fQueuedForBackgroundLoad = 0;
zoneinfo->fBackgroundLoadInProgress = 0;
zoneinfo->fReadOnlyZone = 0;
zoneinfo->dwLastXfrAttempt = 0;
zoneinfo->dwLastXfrResult = 0;
for(i=0; i<zone->num_props; i++){
bool valid_property;
valid_property = dns_zoneinfo_load_zone_property(
zoneinfo, &zone->tmp_props[i]);
if (!valid_property) {
TALLOC_FREE(zoneinfo);
return NULL;
}
}
return zoneinfo;
}
struct dnsserver_zone *dnsserver_find_zone(struct dnsserver_zone *zones, const char *zone_name)
{
struct dnsserver_zone *z = NULL;
for (z = zones; z; z = z->next) {
if (samba_dns_name_equal(zone_name, z->name)) {
break;
}
}
return z;
}
struct ldb_dn *dnsserver_name_to_dn(TALLOC_CTX *mem_ctx, struct dnsserver_zone *z, const char *name)
{
struct ldb_dn *dn;
bool ret;
struct ldb_val name_val =
data_blob_string_const(name);
dn = ldb_dn_copy(mem_ctx, z->zone_dn);
if (dn == NULL) {
return NULL;
}
if (strcasecmp(name, z->name) == 0) {
ret = ldb_dn_add_child_fmt(dn, "DC=@");
if (!ret) {
talloc_free(dn);
return NULL;
}
return dn;
}
ret = ldb_dn_add_child_val(dn,
"DC",
name_val);
if (!ret) {
talloc_free(dn);
return NULL;
}
return dn;
}
uint32_t dnsserver_zone_to_request_filter(const char *zone_name)
{
uint32_t request_filter = 0;
if (strcmp(zone_name, "..AllZones") == 0) {
request_filter = DNS_ZONE_REQUEST_PRIMARY
| DNS_ZONE_REQUEST_SECONDARY
| DNS_ZONE_REQUEST_AUTO
| DNS_ZONE_REQUEST_FORWARD
| DNS_ZONE_REQUEST_REVERSE
| DNS_ZONE_REQUEST_FORWARDER
| DNS_ZONE_REQUEST_STUB
| DNS_ZONE_REQUEST_DS
| DNS_ZONE_REQUEST_NON_DS
| DNS_ZONE_REQUEST_DOMAIN_DP
| DNS_ZONE_REQUEST_FOREST_DP
| DNS_ZONE_REQUEST_CUSTOM_DP
| DNS_ZONE_REQUEST_LEGACY_DP;
} else if (strcmp(zone_name, "..AllZonesAndCache") == 0) {
request_filter = DNS_ZONE_REQUEST_PRIMARY
| DNS_ZONE_REQUEST_SECONDARY
| DNS_ZONE_REQUEST_CACHE
| DNS_ZONE_REQUEST_AUTO
| DNS_ZONE_REQUEST_FORWARD
| DNS_ZONE_REQUEST_REVERSE
| DNS_ZONE_REQUEST_FORWARDER
| DNS_ZONE_REQUEST_STUB
| DNS_ZONE_REQUEST_DS
| DNS_ZONE_REQUEST_NON_DS
| DNS_ZONE_REQUEST_DOMAIN_DP
| DNS_ZONE_REQUEST_FOREST_DP
| DNS_ZONE_REQUEST_CUSTOM_DP
| DNS_ZONE_REQUEST_LEGACY_DP;
} else if (strcmp(zone_name, "..AllPrimaryZones") == 0) {
request_filter = DNS_ZONE_REQUEST_PRIMARY;
} else if (strcmp(zone_name, "..AllSecondaryZones") == 0) {
request_filter = DNS_ZONE_REQUEST_SECONDARY;
} else if (strcmp(zone_name, "..AllForwardZones") == 0) {
request_filter = DNS_ZONE_REQUEST_FORWARD;
} else if (strcmp(zone_name, "..AllReverseZones") == 0) {
request_filter = DNS_ZONE_REQUEST_REVERSE;
} else if (strcmp(zone_name, "..AllDsZones") == 0) {
request_filter = DNS_ZONE_REQUEST_DS;
} else if (strcmp(zone_name, "..AllNonDsZones") == 0) {
request_filter = DNS_ZONE_REQUEST_NON_DS;
} else if (strcmp(zone_name, "..AllPrimaryReverseZones") == 0) {
request_filter = DNS_ZONE_REQUEST_PRIMARY
| DNS_ZONE_REQUEST_REVERSE;
} else if (strcmp(zone_name, "..AllPrimaryForwardZones") == 0) {
request_filter = DNS_ZONE_REQUEST_PRIMARY
| DNS_ZONE_REQUEST_FORWARD;
} else if (strcmp(zone_name, "..AllSecondaryReverseZones") == 0) {
request_filter = DNS_ZONE_REQUEST_SECONDARY
| DNS_ZONE_REQUEST_REVERSE;
} else if (strcmp(zone_name, "..AllSecondaryForwardZones") == 0) {
request_filter = DNS_ZONE_REQUEST_SECONDARY
| DNS_ZONE_REQUEST_REVERSE;
}
return request_filter;
}