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9593101ec1
domain and gets the DC's name via a mailslot call.
Metze, I renamed wbsrv_queue_reply to wbsrv_send_reply in accordance with
irpc_send_reply. Having _queue_ here and _send_ there is a bit confusing. And
as everything is async anyway, the semantics should not be too much of a
problem.
Volker
(This used to be commit 4637964b19)
120 lines
3.8 KiB
C
120 lines
3.8 KiB
C
/*
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Unix SMB/CIFS implementation.
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Main winbindd server routines
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Copyright (C) Stefan Metzmacher 2005
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Copyright (C) Andrew Tridgell 2005
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#define WINBINDD_DIR "/tmp/.winbindd/"
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#define WINBINDD_SOCKET WINBINDD_DIR"socket"
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/* the privileged socket is in smbd_tmp_dir() */
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#define WINBINDD_PRIVILEGED_SOCKET "winbind_socket"
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#define WINBINDD_SAMBA3_SOCKET WINBINDD_DIR"pipe"
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/* the privileged socket is in smbd_tmp_dir() */
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#define WINBINDD_SAMBA3_PRIVILEGED_SOCKET "winbind_pipe"
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/* this struct stores global data for the winbind task */
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struct wbsrv_service {
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struct task_server *task;
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};
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/*
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this is an abstraction for the actual protocol being used,
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so that we can listen on different sockets with different protocols
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e.g. the old samba3 protocol on one socket and a new protocol on another socket
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*/
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struct wbsrv_protocol_ops {
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const char *name;
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BOOL allow_pending_calls;
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uint32_t (*packet_length)(DATA_BLOB blob);
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NTSTATUS (*pull_request)(DATA_BLOB blob, TALLOC_CTX *mem_ctx, struct wbsrv_call **call);
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NTSTATUS (*handle_call)(struct wbsrv_call *call);
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NTSTATUS (*push_reply)(struct wbsrv_call *call, TALLOC_CTX *mem_ctx, DATA_BLOB *blob);
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};
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/*
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state of a listen socket and it's protocol information
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*/
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struct wbsrv_listen_socket {
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const char *socket_path;
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struct wbsrv_service *service;
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BOOL privileged;
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const struct wbsrv_protocol_ops *ops;
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};
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/*
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state of an open winbind connection
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*/
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struct wbsrv_connection {
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/* stream connection we belong to */
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struct stream_connection *conn;
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/* the listening socket we belong to, it holds protocol hooks */
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struct wbsrv_listen_socket *listen_socket;
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/* storage for protocol specific data */
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void *protocol_private_data;
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/* the partial data we've receiced yet */
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DATA_BLOB partial;
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/* the amount that we used yet from the partial buffer */
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uint32_t partial_read;
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/* prevent loops when we use half async code, while processing a requuest */
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BOOL processing;
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/* how many calls are pending */
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uint32_t pending_calls;
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struct data_blob_list_item *send_queue;
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};
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/*
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state of one request
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NOTE about async replies:
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if the backend wants to reply later:
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- it should set the WBSRV_CALL_FLAGS_REPLY_ASYNC flag, and may set a
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talloc_destructor on the this structure or on the private_data (if it's a
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talloc child of this structure), so that wbsrv_terminate_connection
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called by another call clean up the whole connection correct.
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- When the backend is ready to reply it should call wbsrv_send_reply(call),
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wbsrv_send_reply implies talloc_free(call), so the backend should use
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talloc_reference(call), if it needs it later.
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- If wbsrv_send_reply doesn't return NT_STATUS_OK, the backend function
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should call, wbsrv_terminate_connection(call->wbconn, nt_errstr(status));
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return;
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*/
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struct wbsrv_call {
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#define WBSRV_CALL_FLAGS_REPLY_ASYNC 0x00000001
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uint32_t flags;
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/* the backend should use this event context */
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struct event_context *event_ctx;
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/* the connection the call belongs to */
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struct wbsrv_connection *wbconn;
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/* storage for protocol specific data */
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void *private_data;
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};
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