wmi-1.3.16 from opsview.com
This commit is contained in:
Are Casilla
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/*
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Unix SMB/CIFS implementation.
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NBT datagram netlogon server
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Copyright (C) Andrew Tridgell 2005
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "includes.h"
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#include "nbt_server/nbt_server.h"
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#include "lib/socket/socket.h"
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#include "lib/ldb/include/ldb.h"
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#include "dsdb/samdb/samdb.h"
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#include "auth/auth.h"
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#include "db_wrap.h"
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#include "librpc/gen_ndr/ndr_nbt.h"
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/*
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reply to a GETDC request
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*/
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static void nbtd_netlogon_getdc(struct dgram_mailslot_handler *dgmslot,
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struct nbtd_interface *iface,
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struct nbt_dgram_packet *packet,
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const struct socket_address *src,
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struct nbt_netlogon_packet *netlogon)
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{
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struct nbt_name *name = &packet->data.msg.dest_name;
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struct nbtd_interface *reply_iface = nbtd_find_reply_iface(iface, src->addr, False);
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struct nbt_netlogon_packet reply;
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struct nbt_netlogon_response_from_pdc *pdc;
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const char *ref_attrs[] = {"nETBIOSName", NULL};
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struct ldb_message **ref_res;
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struct ldb_context *samctx;
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struct ldb_dn *partitions_basedn;
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int ret;
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/* only answer getdc requests on the PDC or LOGON names */
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if (name->type != NBT_NAME_PDC && name->type != NBT_NAME_LOGON) {
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return;
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}
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samctx = samdb_connect(packet, anonymous_session(packet));
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if (samctx == NULL) {
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DEBUG(2,("Unable to open sam in getdc reply\n"));
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return;
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}
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partitions_basedn = samdb_partitions_dn(samctx, samctx);
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ret = gendb_search(samctx, samctx, partitions_basedn, &ref_res, ref_attrs,
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"(&(&(nETBIOSName=%s)(objectclass=crossRef))(ncName=*))",
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name->name);
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if (ret != 1) {
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DEBUG(2,("Unable to find domain reference '%s' in sam\n", name->name));
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return;
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}
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/* setup a GETDC reply */
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ZERO_STRUCT(reply);
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reply.command = NETLOGON_RESPONSE_FROM_PDC;
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pdc = &reply.req.response;
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pdc->pdc_name = lp_netbios_name();
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pdc->unicode_pdc_name = pdc->pdc_name;
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pdc->domain_name = samdb_result_string(ref_res[0], "nETBIOSName", name->name);;
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pdc->nt_version = 1;
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pdc->lmnt_token = 0xFFFF;
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pdc->lm20_token = 0xFFFF;
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packet->data.msg.dest_name.type = 0;
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dgram_mailslot_netlogon_reply(reply_iface->dgmsock,
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packet,
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netlogon->req.pdc.mailslot_name,
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&reply);
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}
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/*
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reply to a ADS style GETDC request
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*/
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static void nbtd_netlogon_getdc2(struct dgram_mailslot_handler *dgmslot,
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struct nbtd_interface *iface,
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struct nbt_dgram_packet *packet,
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const struct socket_address *src,
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struct nbt_netlogon_packet *netlogon)
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{
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struct nbt_name *name = &packet->data.msg.dest_name;
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struct nbtd_interface *reply_iface = nbtd_find_reply_iface(iface, src->addr, False);
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struct nbt_netlogon_packet reply;
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struct nbt_netlogon_response_from_pdc2 *pdc;
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struct ldb_context *samctx;
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const char *ref_attrs[] = {"nETBIOSName", "dnsRoot", "ncName", NULL};
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const char *dom_attrs[] = {"objectGUID", NULL};
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struct ldb_message **ref_res, **dom_res;
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int ret;
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const char **services = lp_server_services();
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const char *my_ip = reply_iface->ip_address;
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struct ldb_dn *partitions_basedn;
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if (!my_ip) {
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DEBUG(0, ("Could not obtain own IP address for datagram socket\n"));
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return;
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}
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/* only answer getdc requests on the PDC or LOGON names */
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if (name->type != NBT_NAME_PDC && name->type != NBT_NAME_LOGON) {
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return;
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}
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samctx = samdb_connect(packet, anonymous_session(packet));
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if (samctx == NULL) {
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DEBUG(2,("Unable to open sam in getdc reply\n"));
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return;
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}
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partitions_basedn = samdb_partitions_dn(samctx, samctx);
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ret = gendb_search(samctx, samctx, partitions_basedn, &ref_res, ref_attrs,
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"(&(&(nETBIOSName=%s)(objectclass=crossRef))(ncName=*))",
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name->name);
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if (ret != 1) {
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DEBUG(2,("Unable to find domain reference '%s' in sam\n", name->name));
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return;
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}
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/* try and find the domain */
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ret = gendb_search_dn(samctx, samctx,
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samdb_result_dn(samctx, samctx, ref_res[0], "ncName", NULL),
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&dom_res, dom_attrs);
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if (ret != 1) {
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DEBUG(2,("Unable to find domain from reference '%s' in sam\n",
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ldb_dn_get_linearized(ref_res[0]->dn)));
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return;
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}
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/* setup a GETDC reply */
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ZERO_STRUCT(reply);
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reply.command = NETLOGON_RESPONSE_FROM_PDC2;
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#if 0
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/* newer testing shows that the reply command type is not
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changed based on whether a username is given in the
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reply. This was what was causing the w2k join to be so
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slow */
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if (netlogon->req.pdc2.user_name[0]) {
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reply.command = NETLOGON_RESPONSE_FROM_PDC_USER;
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}
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#endif
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pdc = &reply.req.response2;
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/* TODO: accurately depict which services we are running */
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pdc->server_type =
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NBT_SERVER_PDC | NBT_SERVER_GC |
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NBT_SERVER_DS | NBT_SERVER_TIMESERV |
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NBT_SERVER_CLOSEST | NBT_SERVER_WRITABLE |
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NBT_SERVER_GOOD_TIMESERV;
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/* hmm, probably a better way to do this */
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if (str_list_check(services, "ldap")) {
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pdc->server_type |= NBT_SERVER_LDAP;
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}
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if (str_list_check(services, "kdc")) {
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pdc->server_type |= NBT_SERVER_KDC;
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}
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pdc->domain_uuid = samdb_result_guid(dom_res[0], "objectGUID");
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pdc->forest = samdb_result_string(ref_res[0], "dnsRoot", lp_realm());
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pdc->dns_domain = samdb_result_string(ref_res[0], "dnsRoot", lp_realm());
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/* TODO: get our full DNS name from somewhere else */
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pdc->pdc_dns_name = talloc_asprintf(packet, "%s.%s",
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strlower_talloc(packet, lp_netbios_name()),
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pdc->dns_domain);
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pdc->domain = samdb_result_string(ref_res[0], "nETBIOSName", name->name);;
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pdc->pdc_name = lp_netbios_name();
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pdc->user_name = netlogon->req.pdc2.user_name;
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/* TODO: we need to make sure these are in our DNS zone */
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pdc->server_site = "Default-First-Site-Name";
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pdc->client_site = "Default-First-Site-Name";
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pdc->unknown = 0x10; /* what is this? */
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pdc->unknown2 = 2; /* and this ... */
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pdc->pdc_ip = my_ip;
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pdc->nt_version = 13;
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pdc->lmnt_token = 0xFFFF;
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pdc->lm20_token = 0xFFFF;
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packet->data.msg.dest_name.type = 0;
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dgram_mailslot_netlogon_reply(reply_iface->dgmsock,
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packet,
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netlogon->req.pdc2.mailslot_name,
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&reply);
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}
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/*
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handle incoming netlogon mailslot requests
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*/
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void nbtd_mailslot_netlogon_handler(struct dgram_mailslot_handler *dgmslot,
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struct nbt_dgram_packet *packet,
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struct socket_address *src)
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{
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NTSTATUS status = NT_STATUS_NO_MEMORY;
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struct nbtd_interface *iface =
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talloc_get_type(dgmslot->private, struct nbtd_interface);
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struct nbt_netlogon_packet *netlogon =
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talloc(dgmslot, struct nbt_netlogon_packet);
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struct nbtd_iface_name *iname;
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struct nbt_name *name = &packet->data.msg.dest_name;
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if (netlogon == NULL) goto failed;
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/*
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see if the we are listening on the destination netbios name
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*/
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iname = nbtd_find_iname(iface, name, 0);
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if (iname == NULL) {
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status = NT_STATUS_BAD_NETWORK_NAME;
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goto failed;
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}
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DEBUG(2,("netlogon request to %s from %s:%d\n",
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nbt_name_string(netlogon, name), src->addr, src->port));
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status = dgram_mailslot_netlogon_parse(dgmslot, netlogon, packet, netlogon);
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if (!NT_STATUS_IS_OK(status)) goto failed;
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switch (netlogon->command) {
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case NETLOGON_QUERY_FOR_PDC:
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nbtd_netlogon_getdc(dgmslot, iface, packet, src, netlogon);
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break;
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case NETLOGON_QUERY_FOR_PDC2:
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nbtd_netlogon_getdc2(dgmslot, iface, packet, src, netlogon);
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break;
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default:
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DEBUG(2,("unknown netlogon op %d from %s:%d\n",
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netlogon->command, src->addr, src->port));
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NDR_PRINT_DEBUG(nbt_netlogon_packet, netlogon);
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break;
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}
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talloc_free(netlogon);
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return;
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failed:
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DEBUG(2,("nbtd netlogon handler failed from %s:%d to %s - %s\n",
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src->addr, src->port, nbt_name_string(netlogon, name),
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nt_errstr(status)));
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talloc_free(netlogon);
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}
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