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/*
Unix SMB/CIFS implementation.
Get a struct wb_dom_info for a domain using DNS, netbios, possibly cldap
etc.
Copyright (C) Volker Lendecke 2005
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 "libcli/composite/composite.h"
#include "libcli/resolve/resolve.h"
#include "libcli/security/security.h"
#include "winbind/wb_server.h"
#include "smbd/service_task.h"
#include "libcli/finddc.h"
#include "lib/socket/netif.h"
#include "param/param.h"
struct get_dom_info_state {
struct composite_context *ctx;
struct wb_dom_info *info;
};
static void get_dom_info_recv_addrs(struct tevent_req *req);
struct composite_context *wb_get_dom_info_send(TALLOC_CTX *mem_ctx,
struct wbsrv_service *service,
const char *domain_name,
const char *dns_domain_name,
const struct dom_sid *sid)
{
struct composite_context *result;
struct tevent_req *req;
struct get_dom_info_state *state;
struct dom_sid *dom_sid;
struct finddcs finddcs_io;
DEBUG(5, ("wb_get_dom_info_send called\n"));
result = composite_create(mem_ctx, service->task->event_ctx);
if (result == NULL) goto failed;
state = talloc(result, struct get_dom_info_state);
if (state == NULL) goto failed;
state->ctx = result;
result->private_data = state;
state->info = talloc_zero(state, struct wb_dom_info);
if (state->info == NULL) goto failed;
state->info->name = talloc_strdup(state->info, domain_name);
if (state->info->name == NULL) goto failed;
state->info->sid = dom_sid_dup(state->info, sid);
if (state->info->sid == NULL) goto failed;
if ((lpcfg_server_role(service->task->lp_ctx) != ROLE_DOMAIN_MEMBER) &&
dom_sid_equal(sid, service->primary_sid) &&
service->sec_channel_type != SEC_CHAN_RODC) {
struct interface *ifaces = NULL;
load_interface_list(state, service->task->lp_ctx, &ifaces);
state->info->dc = talloc(state->info, struct nbt_dc_name);
state->info->dc->address = talloc_strdup(state->info->dc,
iface_list_n_ip(ifaces, 0));
state->info->dc->name = talloc_strdup(state->info->dc,
lpcfg_netbios_name(service->task->lp_ctx));
composite_done(state->ctx);
return result;
}
dom_sid = dom_sid_dup(mem_ctx, sid);
if (dom_sid == NULL) goto failed;
ZERO_STRUCT(finddcs_io);
finddcs_io.in.domain_name = dns_domain_name;
finddcs_io.in.domain_sid = dom_sid;
finddcs_io.in.minimum_dc_flags = NBT_SERVER_LDAP | NBT_SERVER_DS;
if (service->sec_channel_type == SEC_CHAN_RODC) {
finddcs_io.in.minimum_dc_flags |= NBT_SERVER_WRITABLE;
}
req = finddcs_cldap_send(mem_ctx, &finddcs_io,
lpcfg_resolve_context(service->task->lp_ctx),
service->task->event_ctx);
if (req == NULL) goto failed;
tevent_req_set_callback(req, get_dom_info_recv_addrs, state);
return result;
failed:
talloc_free(result);
return NULL;
}
static void get_dom_info_recv_addrs(struct tevent_req *req)
{
struct get_dom_info_state *state = tevent_req_callback_data(req, struct get_dom_info_state);
struct finddcs finddcs_io;
state->info->dc = talloc(state->info, struct nbt_dc_name);
state->ctx->status = finddcs_cldap_recv(req, state->info, &finddcs_io);
if (!composite_is_ok(state->ctx)) return;
if (finddcs_io.out.netlogon.ntver != NETLOGON_NT_VERSION_5EX) {
/* the finddcs code should have mapped the response to
the type we want */
DEBUG(0,(__location__ ": unexpected ntver 0x%08x in finddcs response\n",
finddcs_io.out.netlogon.ntver));
state->ctx->status = NT_STATUS_UNEXPECTED_NETWORK_ERROR;
if (!composite_is_ok(state->ctx)) return;
}
state->info->dc->address = finddcs_io.out.address;
state->info->dc->name = finddcs_io.out.netlogon.data.nt5_ex.pdc_dns_name;
composite_done(state->ctx);
}
NTSTATUS wb_get_dom_info_recv(struct composite_context *ctx,
TALLOC_CTX *mem_ctx,
struct wb_dom_info **result)
{
NTSTATUS status = composite_wait(ctx);
if (NT_STATUS_IS_OK(status)) {
struct get_dom_info_state *state =
talloc_get_type(ctx->private_data,
struct get_dom_info_state);
*result = talloc_steal(mem_ctx, state->info);
}
talloc_free(ctx);
return status;
}
NTSTATUS wb_get_dom_info(TALLOC_CTX *mem_ctx,
struct wbsrv_service *service,
const char *domain_name,
const char *dns_domain_name,
const struct dom_sid *sid,
struct wb_dom_info **result)
{
struct composite_context *ctx =
wb_get_dom_info_send(mem_ctx, service, domain_name, dns_domain_name, sid);
return wb_get_dom_info_recv(ctx, mem_ctx, result);
}
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