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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 2 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, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#include "libcli/composite/composite.h"
#include "libcli/resolve/resolve.h"
#include "libcli/security/proto.h"
#include "winbind/wb_server.h"
#include "smbd/service_task.h"
#include "librpc/gen_ndr/ndr_irpc.h"
#include "librpc/gen_ndr/samr.h"
#include "lib/messaging/irpc.h"
struct get_dom_info_state {
struct composite_context *ctx;
struct wbsrv_service *service;
struct nbtd_getdcname r;
struct wb_dom_info *info;
};
static void get_dom_info_recv_addrs(struct composite_context *ctx);
static void get_dom_info_recv_dcname(struct irpc_request *ireq);
struct composite_context *wb_get_dom_info_send(TALLOC_CTX *mem_ctx,
struct wbsrv_service *service,
const char *domain_name,
const struct dom_sid *sid)
{
struct composite_context *result, *ctx;
struct get_dom_info_state *state;
struct nbt_name name;
result = talloc(mem_ctx, struct composite_context);
if (result == NULL) goto failed;
result->state = COMPOSITE_STATE_IN_PROGRESS;
result->async.fn = NULL;
result->event_ctx = service->task->event_ctx;
state = talloc(result, struct get_dom_info_state);
if (state == NULL) goto failed;
state->ctx = result;
result->private_data = state;
state->service = service;
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;
make_nbt_name(&name, state->info->name, NBT_NAME_LOGON);
ctx = resolve_name_send(&name, result->event_ctx,
lp_name_resolve_order());
if (ctx == NULL) goto failed;
ctx->async.fn = get_dom_info_recv_addrs;
ctx->async.private_data = state;
return result;
failed:
talloc_free(result);
return NULL;
}
static void get_dom_info_recv_addrs(struct composite_context *ctx)
{
struct get_dom_info_state *state =
talloc_get_type(ctx->async.private_data,
struct get_dom_info_state);
uint32_t *nbt_servers;
struct irpc_request *ireq;
state->ctx->status = resolve_name_recv(ctx, state->info,
&state->info->dc_address);
if (!composite_is_ok(state->ctx)) return;
nbt_servers = irpc_servers_byname(state->service->task->msg_ctx,
"nbt_server");
if ((nbt_servers == NULL) || (nbt_servers[0] == 0)) {
composite_error(state->ctx, NT_STATUS_NO_LOGON_SERVERS);
return;
}
state->r.in.domainname = state->info->name;
state->r.in.ip_address = state->info->dc_address;
state->r.in.my_computername = lp_netbios_name();
state->r.in.my_accountname = talloc_asprintf(state, "%s$",
lp_netbios_name());
if (composite_nomem(state->r.in.my_accountname, state->ctx)) return;
state->r.in.account_control = ACB_WSTRUST;
state->r.in.domain_sid = dom_sid_dup(state, state->info->sid);
if (composite_nomem(state->r.in.domain_sid, state->ctx)) return;
ireq = irpc_call_send(state->service->task->msg_ctx, nbt_servers[0],
&dcerpc_table_irpc, DCERPC_NBTD_GETDCNAME,
&state->r, state);
composite_continue_irpc(state->ctx, ireq, get_dom_info_recv_dcname,
state);
}
static void get_dom_info_recv_dcname(struct irpc_request *ireq)
{
struct get_dom_info_state *state =
talloc_get_type(ireq->async.private,
struct get_dom_info_state);
state->ctx->status = irpc_call_recv(ireq);
if (!composite_is_ok(state->ctx)) return;
state->info->dc_name = talloc_steal(state->info, state->r.out.dcname);
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 struct dom_sid *sid,
struct wb_dom_info **result)
{
struct composite_context *ctx =
wb_get_dom_info_send(mem_ctx, service, domain_name, sid);
return wb_get_dom_info_recv(ctx, mem_ctx, result);
}
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