1/*
2   Unix SMB/CIFS implementation.
3   Main winbindd server routines
4
5   Copyright (C) Stefan Metzmacher	2005
6   Copyright (C) Andrew Tridgell	2005
7
8   This program is free software; you can redistribute it and/or modify
9   it under the terms of the GNU General Public License as published by
10   the Free Software Foundation; either version 3 of the License, or
11   (at your option) any later version.
12
13   This program is distributed in the hope that it will be useful,
14   but WITHOUT ANY WARRANTY; without even the implied warranty of
15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16   GNU General Public License for more details.
17
18   You should have received a copy of the GNU General Public License
19   along with this program.  If not, see <http://www.gnu.org/licenses/>.
20*/
21
22#include "nsswitch/winbind_nss_config.h"
23#include "nsswitch/winbind_struct_protocol.h"
24#include "winbind/idmap.h"
25#include "libnet/libnet.h"
26
27#define WINBINDD_SAMBA3_SOCKET "pipe"
28/* the privileged socket is in smbd_tmp_dir() */
29#define WINBINDD_SAMBA3_PRIVILEGED_SOCKET "winbind_pipe"
30
31/* this struct stores global data for the winbind task */
32struct wbsrv_service {
33	struct task_server *task;
34
35	const struct dom_sid *primary_sid;
36	struct wbsrv_domain *domains;
37	struct idmap_context *idmap_ctx;
38
39	const char *priv_socket_path;
40};
41
42struct wbsrv_samconn {
43	struct wbsrv_domain *domain;
44	void *private_data;
45
46	struct composite_context (*seqnum_send)(struct wbsrv_samconn *);
47	NTSTATUS (*seqnum_recv)(struct composite_context *, uint64_t *);
48};
49
50struct wb_dom_info {
51	const char *name;
52	const char *dns_name;
53	const struct dom_sid *sid;
54
55	int num_dcs;
56	struct nbt_dc_name *dcs;
57};
58
59struct wbsrv_domain {
60	struct wbsrv_domain *next, *prev;
61
62	struct wb_dom_info *info;
63
64	/* Details for the server we are currently talking to */
65	const char *dc_address;
66	const char *dc_name;
67
68	struct libnet_context *libnet_ctx;
69
70	struct dcerpc_binding *lsa_binding;
71
72	struct dcerpc_binding *samr_binding;
73
74	struct dcerpc_pipe *netlogon_pipe;
75	struct dcerpc_binding *netlogon_binding;
76};
77
78/*
79  state of a listen socket and it's protocol information
80*/
81struct wbsrv_listen_socket {
82	const char *socket_path;
83	struct wbsrv_service *service;
84	bool privileged;
85};
86
87/*
88  state of an open winbind connection
89*/
90struct wbsrv_connection {
91	/* stream connection we belong to */
92	struct stream_connection *conn;
93
94	/* the listening socket we belong to, it holds protocol hooks */
95	struct wbsrv_listen_socket *listen_socket;
96
97	/* storage for protocol specific data */
98	void *protocol_private_data;
99
100	/* how many calls are pending */
101	uint32_t pending_calls;
102
103	struct packet_context *packet;
104
105	struct loadparm_context *lp_ctx;
106};
107
108#define WBSRV_SAMBA3_SET_STRING(dest, src) do { \
109	safe_strcpy(dest, src, sizeof(dest)-1);\
110} while(0)
111
112/*
113  state of a pwent query
114*/
115struct wbsrv_pwent {
116	/* Current UserList structure, contains 1+ user structs */
117	struct libnet_UserList *user_list;
118
119	/* Index of the next user struct in the current UserList struct */
120	uint32_t page_index;
121
122	/* The libnet_ctx to use for the libnet_UserList call */
123	struct libnet_context *libnet_ctx;
124};
125
126/*
127  state of one request
128
129  NOTE about async replies:
130   if the backend wants to reply later:
131
132   - it should set the WBSRV_CALL_FLAGS_REPLY_ASYNC flag, and may set a
133     talloc_destructor on the this structure or on the private_data (if it's a
134     talloc child of this structure), so that wbsrv_terminate_connection
135     called by another call clean up the whole connection correct.
136   - When the backend is ready to reply it should call wbsrv_send_reply(call),
137     wbsrv_send_reply implies talloc_free(call), so the backend should use
138     talloc_reference(call), if it needs it later.
139   - If wbsrv_send_reply doesn't return NT_STATUS_OK, the backend function
140     should call, wbsrv_terminate_connection(call->wbconn, nt_errstr(status));
141     return;
142
143*/
144struct wbsrv_samba3_call {
145#define WBSRV_CALL_FLAGS_REPLY_ASYNC 0x00000001
146	uint32_t flags;
147
148	/* the connection the call belongs to */
149	struct wbsrv_connection *wbconn;
150
151	/* the backend should use this event context */
152	struct tevent_context *event_ctx;
153
154	/* here the backend can store stuff like composite_context's ... */
155	void *private_data;
156
157	/* the request structure of the samba3 protocol */
158	struct winbindd_request request;
159
160	/* the response structure of the samba3 protocol*/
161	struct winbindd_response response;
162};
163
164struct netr_LMSessionKey;
165struct netr_UserSessionKey;
166struct winbind_SamLogon;
167
168#include "winbind/wb_async_helpers.h"
169#include "winbind/wb_proto.h"
170