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/*
Unix SMB/CIFS implementation.
Find and init a domain struct for a SID
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 "winbind/wb_server.h"
#include "smbd/service_stream.h"
#include "smbd/service_task.h"
#include "lib/events/events.h"
#include "librpc/gen_ndr/nbt.h"
#include "librpc/gen_ndr/ndr_netlogon.h"
#include "winbind/wb_async_helpers.h"
#include "include/dlinklist.h"
static const char *sam_name(void)
{
if (lp_server_role() == ROLE_STANDALONE) {
return lp_netbios_name();
}
return lp_workgroup();
}
static struct wbsrv_domain *find_primary_domain(struct wbsrv_service *service)
{
const char *my_domain_name = sam_name();
struct wbsrv_domain *domain;
for (domain = service->domains; domain!=NULL; domain = domain->next) {
if (strcasecmp(domain->name, my_domain_name) == 0) {
break;
}
}
return domain;
}
static struct wbsrv_domain *find_domain_from_sid(struct wbsrv_service *service,
const struct dom_sid *sid)
{
struct wbsrv_domain *domain;
for (domain = service->domains; domain!=NULL; domain = domain->next) {
if (dom_sid_equal(domain->sid, sid)) {
break;
}
if (dom_sid_in_domain(domain->sid, sid)) {
break;
}
}
return domain;
}
struct sid2domain_state {
struct composite_context *ctx;
struct wbsrv_service *service;
const struct dom_sid *sid;
const char *domain_name;
const char *dc_name;
struct dom_sid *domain_sid;
struct wbsrv_domain *my_domain;
struct wbsrv_domain *result;
};
static void sid2domain_recv_name(struct composite_context *ctx);
static void sid2domain_recv_dcname(struct composite_context *ctx);
static void sid2domain_recv_init(struct composite_context *ctx);
struct composite_context *wb_sid2domain_send(struct wbsrv_service *service,
const struct dom_sid *sid)
{
struct composite_context *result, *ctx;
struct sid2domain_state *state;
result = talloc_zero(NULL, 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 sid2domain_state);
if (state == NULL) goto failed;
state->ctx = result;
result->private_data = state;
state->service = service;
state->sid = dom_sid_dup(state, sid);
if (state->sid == NULL) goto failed;
state->result = find_domain_from_sid(service, sid);
if (state->result != NULL) {
result->status = NT_STATUS_OK;
if (!state->result->initialized) {
ctx = wb_init_domain_send(state->result,
service->task->event_ctx,
service->task->msg_ctx);
if (ctx == NULL) goto failed;
ctx->async.fn = sid2domain_recv_init;
ctx->async.private_data = state;
return result;
}
composite_trigger_done(result);
return result;
}
state->my_domain = find_primary_domain(service);
if (state->my_domain == NULL) {
result->status = NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
composite_trigger_error(result);
return result;
}
ctx = wb_cmd_lookupsid_send(service, state->my_domain, state->sid);
if (ctx == NULL) goto failed;
ctx->async.fn = sid2domain_recv_name;
ctx->async.private_data = state;
return result;
failed:
talloc_free(result);
return NULL;
}
static void sid2domain_recv_name(struct composite_context *ctx)
{
struct sid2domain_state *state =
talloc_get_type(ctx->async.private_data,
struct sid2domain_state);
struct wb_sid_object *name;
state->ctx->status = wb_cmd_lookupsid_recv(ctx, state, &name);
if (!composite_is_ok(state->ctx)) return;
if (name->type == SID_NAME_UNKNOWN) {
composite_error(state->ctx, NT_STATUS_NO_SUCH_DOMAIN);
return;
}
state->domain_name = name->domain;
state->domain_sid = dom_sid_dup(state, state->sid);
if (name->type != SID_NAME_DOMAIN) {
state->domain_sid->num_auths -= 1;
}
ctx = wb_cmd_getdcname_send(state->service, state->my_domain,
state->domain_name);
composite_continue(state->ctx, ctx, sid2domain_recv_dcname, state);
}
static void sid2domain_recv_dcname(struct composite_context *ctx)
{
struct sid2domain_state *state =
talloc_get_type(ctx->async.private_data,
struct sid2domain_state);
state->ctx->status = wb_cmd_getdcname_recv(ctx, state,
&state->dc_name);
if (!composite_is_ok(state->ctx)) return;
state->result = talloc_zero(state, struct wbsrv_domain);
if (composite_nomem(state->result, state->ctx)) return;
state->result->name = talloc_steal(state->result, state->domain_name);
state->result->sid = talloc_steal(state->result, state->domain_sid);
state->result->dcname = talloc_steal(state->result, state->dc_name);
state->result->schannel_creds = cli_credentials_init(state->result);
if (composite_nomem(state->result->schannel_creds, state->ctx)) return;
cli_credentials_set_conf(state->result->schannel_creds);
cli_credentials_set_anonymous(state->result->schannel_creds);
talloc_steal(state->service, state->result);
DLIST_ADD(state->service->domains, state->result);
ctx = wb_init_domain_send(state->result,
state->service->task->event_ctx,
state->service->task->msg_ctx);
composite_continue(state->ctx, ctx, sid2domain_recv_init, state);
}
static void sid2domain_recv_init(struct composite_context *ctx)
{
struct sid2domain_state *state =
talloc_get_type(ctx->async.private_data,
struct sid2domain_state);
state->ctx->status = wb_init_domain_recv(ctx);
if (!composite_is_ok(state->ctx)) return;
composite_done(state->ctx);
}
NTSTATUS wb_sid2domain_recv(struct composite_context *ctx,
struct wbsrv_domain **result)
{
NTSTATUS status = composite_wait(ctx);
if (NT_STATUS_IS_OK(status)) {
struct sid2domain_state *state =
talloc_get_type(ctx->private_data,
struct sid2domain_state);
*result = state->result;
}
talloc_free(ctx);
return status;
}
NTSTATUS wb_sid2domain(struct wbsrv_service *service,
const struct dom_sid *sid,
struct wbsrv_domain **result)
{
struct composite_context *c = wb_sid2domain_send(service, sid);
return wb_sid2domain_recv(c, result);
}
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