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/*
Unix SMB/CIFS implementation.
A composite API for initializing a domain
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 "dlinklist.h"
struct domain_request_state {
struct domain_request_state *prev, *next;
struct composite_context *ctx;
struct wbsrv_service *service;
struct wbsrv_domain *domain;
struct composite_context *(*send_fn)(struct wbsrv_domain *domain,
void *p);
NTSTATUS (*recv_fn)(struct composite_context *c,
void *p);
void *private_data;
};
static void domain_request_recv_domain(struct composite_context *ctx);
static void domain_request_recv_init(struct composite_context *ctx);
static void domain_request_recv_sub(struct composite_context *ctx);
struct composite_context *wb_domain_request_send(TALLOC_CTX *mem_ctx,
struct wbsrv_service *service,
const struct dom_sid *sid,
struct composite_context *(*send_fn)(struct wbsrv_domain *domain, void *p),
NTSTATUS (*recv_fn)(struct composite_context *c,
void *p),
void *private_data)
{
struct composite_context *result, *ctx;
struct domain_request_state *state;
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_zero(result, struct domain_request_state);
if (state == NULL) goto failed;
state->ctx = result;
result->private_data = state;
state->service = service;
state->send_fn = send_fn;
state->recv_fn = recv_fn;
state->private_data = private_data;
ctx = wb_sid2domain_send(service, sid);
if (ctx == NULL) goto failed;
ctx->async.fn = domain_request_recv_domain;
ctx->async.private_data = state;
return result;
failed:
talloc_free(result);
return NULL;
}
static void domain_request_recv_domain(struct composite_context *ctx)
{
struct domain_request_state *state =
talloc_get_type(ctx->async.private_data,
struct domain_request_state);
state->ctx->status = wb_sid2domain_recv(ctx, &state->domain);
if (!composite_is_ok(state->ctx)) return;
if (state->domain->busy) {
DEBUG(3, ("Domain %s busy\n", state->domain->name));
DLIST_ADD_END(state->domain->request_queue, state,
struct domain_request_state *);
return;
}
state->domain->busy = True;
if (!state->domain->initialized) {
ctx = wb_init_domain_send(state->service, state->domain);
composite_continue(state->ctx, ctx, domain_request_recv_init,
state);
return;
}
ctx = state->send_fn(state->domain, state->private_data);
composite_continue(state->ctx, ctx, domain_request_recv_sub, state);
}
static void domain_request_recv_init(struct composite_context *ctx)
{
struct domain_request_state *state =
talloc_get_type(ctx->async.private_data,
struct domain_request_state);
state->ctx->status = wb_init_domain_recv(ctx);
if (!composite_is_ok(state->ctx)) return;
ctx = state->send_fn(state->domain, state->private_data);
composite_continue(state->ctx, ctx, domain_request_recv_sub, state);
}
static void domain_request_recv_sub(struct composite_context *ctx)
{
struct domain_request_state *state =
talloc_get_type(ctx->async.private_data,
struct domain_request_state);
state->ctx->status = state->recv_fn(ctx, state->private_data);
state->domain->busy = False;
if (state->domain->request_queue != NULL) {
struct domain_request_state *s2;
s2 = state->domain->request_queue;
DLIST_REMOVE(state->domain->request_queue, s2);
ctx = s2->send_fn(state->domain, s2->private_data);
composite_continue(s2->ctx, ctx, domain_request_recv_sub, s2);
state->domain->busy = True;
}
if (!composite_is_ok(state->ctx)) return;
composite_done(state->ctx);
}
NTSTATUS wb_domain_request_recv(struct composite_context *ctx)
{
NTSTATUS status = composite_wait(ctx);
talloc_free(ctx);
return status;
}
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