/* Having make a netlogon connection (possibly secured with schannel),
* make an LSA connection to the same DC, on the same IPC$ share */
static void init_domain_recv_netlogonpipe(struct composite_context *ctx)
{
struct init_domain_state *state =
talloc_get_type(ctx->async.private_data,
struct init_domain_state);
state->ctx->status = dcerpc_pipe_connect_b_recv(ctx, state,
&state->domain->netlogon_pipe);
if (!composite_is_ok(state->ctx)) {
talloc_free(state->domain->netlogon_binding);
return;
}
talloc_steal(state->domain->netlogon_pipe, state->domain->netlogon_binding);
state->domain->lsa_binding = init_domain_binding(state, &dcerpc_table_lsarpc);
/* For debugging, it can be a real pain if all the traffic is encrypted */
if (lp_winbind_sealed_pipes()) {
state->domain->lsa_binding->flags |= (DCERPC_SIGN | DCERPC_SEAL );
} else {
state->domain->lsa_binding->flags |= (DCERPC_SIGN);
}
state->domain->lsa_pipe = NULL;
/* this will make the secondary connection on the same IPC$ share,
secured with SPNEGO or NTLMSSP */
ctx = dcerpc_secondary_connection_send(state->domain->netlogon_pipe,
state->domain->lsa_binding);
composite_continue(state->ctx, ctx, init_domain_recv_lsa_pipe, state);
}
static void init_domain_recv_queryinfo(struct tevent_req *subreq)
{
struct init_domain_state *state =
tevent_req_callback_data(subreq,
struct init_domain_state);
struct lsa_DomainInfo *dominfo;
struct composite_context *ctx;
uint32_t lflags;
state->ctx->status = dcerpc_lsa_QueryInfoPolicy_r_recv(subreq, state);
TALLOC_FREE(subreq);
if (!composite_is_ok(state->ctx)) return;
state->ctx->status = state->queryinfo.out.result;
if (!composite_is_ok(state->ctx)) return;
if (!dom_sid_equal(state->domain->info->sid, &global_sid_Builtin)) {
dominfo = &(*state->queryinfo.out.info)->account_domain;
if (strcasecmp(state->domain->info->name, dominfo->name.string) != 0) {
DEBUG(2, ("Expected domain name %s, DC %s said %s\n",
state->domain->info->name,
dcerpc_server_name(state->domain->libnet_ctx->lsa.pipe),
dominfo->name.string));
composite_error(state->ctx, NT_STATUS_INVALID_DOMAIN_STATE);
return;
}
if (!dom_sid_equal(state->domain->info->sid, dominfo->sid)) {
DEBUG(2, ("Expected domain sid %s, DC %s said %s\n",
dom_sid_string(state, state->domain->info->sid),
dcerpc_server_name(state->domain->libnet_ctx->lsa.pipe),
dom_sid_string(state, dominfo->sid)));
composite_error(state->ctx, NT_STATUS_INVALID_DOMAIN_STATE);
return;
}
}
state->domain->samr_binding = init_domain_binding(state, &ndr_table_samr);
/* We want to use the same flags as the LSA pipe did (so, if
* it needed schannel, then we need that here too) */
lflags = dcerpc_binding_get_flags(state->domain->lsa_binding);
state->ctx->status = dcerpc_binding_set_flags(state->domain->samr_binding,
lflags, 0);
if (!composite_is_ok(state->ctx)) return;
state->domain->libnet_ctx->samr.pipe = NULL;
state->domain->libnet_ctx->samr.samr_handle = NULL;
ctx = wb_connect_samr_send(state, state->domain);
composite_continue(state->ctx, ctx, init_domain_recv_samr, state);
}
/* Having make a netlogon connection (possibly secured with schannel),
* make an LSA connection to the same DC, on the same IPC$ share */
static void init_domain_recv_netlogonpipe(struct composite_context *ctx)
{
struct init_domain_state *state =
talloc_get_type(ctx->async.private_data,
struct init_domain_state);
uint32_t flags;
state->ctx->status = dcerpc_pipe_connect_b_recv(ctx, state->domain,
&state->domain->netlogon_pipe);
if (!composite_is_ok(state->ctx)) {
return;
}
talloc_reparent(state, state->domain->netlogon_pipe, state->domain->netlogon_binding);
/* the netlogon connection is ready */
tevent_queue_start(state->domain->netlogon_queue);
state->domain->lsa_binding = init_domain_binding(state, &ndr_table_lsarpc);
/* For debugging, it can be a real pain if all the traffic is encrypted */
if (lpcfg_winbind_sealed_pipes(state->service->task->lp_ctx)) {
flags = DCERPC_SIGN | DCERPC_SEAL;
} else {
flags = DCERPC_SIGN;
}
state->ctx->status = dcerpc_binding_set_flags(state->domain->lsa_binding,
flags, 0);
if (!composite_is_ok(state->ctx)) {
return;
}
state->domain->libnet_ctx->lsa.pipe = NULL;
state->domain->libnet_ctx->lsa.lsa_handle = NULL;
/* this will make the secondary connection on the same IPC$ share,
secured with SPNEGO or NTLMSSP */
ctx = dcerpc_secondary_auth_connection_send(state->domain->netlogon_pipe,
state->domain->lsa_binding,
&ndr_table_lsarpc,
state->domain->libnet_ctx->cred,
state->domain->libnet_ctx->lp_ctx
);
composite_continue(state->ctx, ctx, init_domain_recv_lsa_pipe, state);
}
static void init_domain_recv_queryinfo(struct rpc_request *req)
{
struct init_domain_state *state =
talloc_get_type(req->async.private_data, struct init_domain_state);
struct lsa_DomainInfo *dominfo;
struct composite_context *ctx;
state->ctx->status = dcerpc_ndr_request_recv(req);
if (!composite_is_ok(state->ctx)) return;
state->ctx->status = state->queryinfo.out.result;
if (!composite_is_ok(state->ctx)) return;
dominfo = &state->queryinfo.out.info->account_domain;
if (strcasecmp(state->domain->info->name, dominfo->name.string) != 0) {
DEBUG(2, ("Expected domain name %s, DC %s said %s\n",
state->domain->info->name,
dcerpc_server_name(state->domain->lsa_pipe),
dominfo->name.string));
composite_error(state->ctx, NT_STATUS_INVALID_DOMAIN_STATE);
return;
}
if (!dom_sid_equal(state->domain->info->sid, dominfo->sid)) {
DEBUG(2, ("Expected domain sid %s, DC %s said %s\n",
dom_sid_string(state, state->domain->info->sid),
dcerpc_server_name(state->domain->lsa_pipe),
dom_sid_string(state, dominfo->sid)));
composite_error(state->ctx, NT_STATUS_INVALID_DOMAIN_STATE);
return;
}
state->domain->samr_binding = init_domain_binding(state, &dcerpc_table_samr);
/* We want to use the same flags as the LSA pipe did (so, if
* it needed schannel, then we need that here too) */
state->domain->samr_binding->flags = state->domain->lsa_binding->flags;
state->domain->samr_pipe = NULL;
ctx = wb_connect_samr_send(state, state->domain);
composite_continue(state->ctx, ctx, init_domain_recv_samr, state);
}
struct composite_context *wb_init_domain_send(TALLOC_CTX *mem_ctx,
struct wbsrv_service *service,
struct wb_dom_info *dom_info)
{
struct composite_context *result, *ctx;
struct init_domain_state *state;
result = composite_create(mem_ctx, service->task->event_ctx);
if (result == NULL) goto failed;
state = talloc_zero(result, struct init_domain_state);
if (state == NULL) goto failed;
state->ctx = result;
result->private_data = state;
state->service = service;
state->domain = talloc(state, struct wbsrv_domain);
if (state->domain == NULL) goto failed;
state->domain->info = talloc_reference(state->domain, dom_info);
if (state->domain->info == NULL) goto failed;
/* Caller should check, but to be safe: */
if (dom_info->num_dcs < 1) {
goto failed;
}
/* For now, we just pick the first. The next step will be to
* walk the entire list. Also need to fix finddcs() to return
* the entire list */
state->domain->dc_name = dom_info->dcs[0].name;
state->domain->dc_address = dom_info->dcs[0].address;
/* Create a credentials structure */
state->domain->schannel_creds = cli_credentials_init(state->domain);
if (state->domain->schannel_creds == NULL) goto failed;
cli_credentials_set_event_context(state->domain->schannel_creds, service->task->event_ctx);
cli_credentials_set_conf(state->domain->schannel_creds);
/* Connect the machine account to the credentials */
state->ctx->status =
cli_credentials_set_machine_account(state->domain->
schannel_creds);
if (!NT_STATUS_IS_OK(state->ctx->status)) goto failed;
state->domain->netlogon_binding = init_domain_binding(state, &dcerpc_table_netlogon);
state->domain->netlogon_pipe = NULL;
if ((!cli_credentials_is_anonymous(state->domain->schannel_creds)) &&
((lp_server_role() == ROLE_DOMAIN_MEMBER) &&
(dom_sid_equal(state->domain->info->sid,
state->service->primary_sid)))) {
state->domain->netlogon_binding->flags |= DCERPC_SCHANNEL;
/* For debugging, it can be a real pain if all the traffic is encrypted */
if (lp_winbind_sealed_pipes()) {
state->domain->netlogon_binding->flags |= (DCERPC_SIGN | DCERPC_SEAL );
} else {
state->domain->netlogon_binding->flags |= (DCERPC_SIGN);
}
}
/* No encryption on anonymous pipes */
ctx = dcerpc_pipe_connect_b_send(state, state->domain->netlogon_binding,
&dcerpc_table_netlogon,
state->domain->schannel_creds,
service->task->event_ctx);
if (composite_nomem(ctx, state->ctx)) {
goto failed;
}
composite_continue(state->ctx, ctx, init_domain_recv_netlogonpipe,
state);
return result;
failed:
talloc_free(result);
return NULL;
}
struct composite_context *wb_init_domain_send(TALLOC_CTX *mem_ctx,
struct wbsrv_service *service,
struct wb_dom_info *dom_info)
{
struct composite_context *result, *ctx;
struct init_domain_state *state;
result = composite_create(mem_ctx, service->task->event_ctx);
if (result == NULL) goto failed;
state = talloc_zero(result, struct init_domain_state);
if (state == NULL) goto failed;
state->ctx = result;
result->private_data = state;
state->service = service;
state->domain = talloc(state, struct wbsrv_domain);
if (state->domain == NULL) goto failed;
state->domain->service = service;
state->domain->info = talloc_reference(state->domain, dom_info);
if (state->domain->info == NULL) goto failed;
state->domain->dc_name = dom_info->dc->name;
state->domain->dc_address = dom_info->dc->address;
state->domain->libnet_ctx = libnet_context_init(service->task->event_ctx,
service->task->lp_ctx);
if (state->domain->libnet_ctx == NULL) goto failed;
talloc_steal(state->domain, state->domain->libnet_ctx);
/* Create a credentials structure */
state->domain->libnet_ctx->cred = cli_credentials_init(state->domain);
if (state->domain->libnet_ctx->cred == NULL) goto failed;
cli_credentials_set_conf(state->domain->libnet_ctx->cred, service->task->lp_ctx);
/* Connect the machine account to the credentials */
state->ctx->status =
cli_credentials_set_machine_account(state->domain->libnet_ctx->cred, state->domain->libnet_ctx->lp_ctx);
if (!NT_STATUS_IS_OK(state->ctx->status)) goto failed;
state->domain->netlogon_binding = init_domain_binding(state, &ndr_table_netlogon);
state->domain->netlogon_pipe = NULL;
state->domain->netlogon_queue = tevent_queue_create(state->domain,
"netlogon_queue");
if (state->domain->netlogon_queue == NULL) goto failed;
/* We start the queue when the connection is usable */
tevent_queue_stop(state->domain->netlogon_queue);
if ((!cli_credentials_is_anonymous(state->domain->libnet_ctx->cred)) &&
((lpcfg_server_role(service->task->lp_ctx) == ROLE_DOMAIN_MEMBER) ||
(lpcfg_server_role(service->task->lp_ctx) == ROLE_ACTIVE_DIRECTORY_DC)) &&
(dom_sid_equal(state->domain->info->sid,
state->service->primary_sid))) {
uint32_t flags = DCERPC_SCHANNEL | DCERPC_SCHANNEL_AUTO;
/* For debugging, it can be a real pain if all the traffic is encrypted */
if (lpcfg_winbind_sealed_pipes(service->task->lp_ctx)) {
flags |= DCERPC_SIGN | DCERPC_SEAL;
} else {
flags |= DCERPC_SIGN;
}
state->ctx->status = dcerpc_binding_set_flags(state->domain->netlogon_binding,
flags, 0);
if (!NT_STATUS_IS_OK(state->ctx->status)) goto failed;
}
/* No encryption on anonymous pipes */
ctx = dcerpc_pipe_connect_b_send(state, state->domain->netlogon_binding,
&ndr_table_netlogon,
state->domain->libnet_ctx->cred,
service->task->event_ctx,
service->task->lp_ctx);
if (composite_nomem(ctx, state->ctx)) {
goto failed;
}
composite_continue(state->ctx, ctx, init_domain_recv_netlogonpipe,
state);
return result;
failed:
talloc_free(result);
return NULL;
}