source: trunk/server/source3/include/client.h@ 622

Last change on this file since 622 was 429, checked in by Silvan Scherrer, 16 years ago

Samba 3.5.x: trunk update to 3.5.2
File size: 8.5 KB
Line 
1/*
2 Unix SMB/CIFS implementation.
3 SMB parameters and setup
4 Copyright (C) Andrew Tridgell 1992-1998
5 Copyright (C) Luke Kenneth Casson Leighton 1996-1998
6 Copyright (C) Jeremy Allison 1998
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#ifndef _CLIENT_H
23#define _CLIENT_H
24
25/* the client asks for a smaller buffer to save ram and also to get more
26 overlap on the wire. This size gives us a nice read/write size, which
27 will be a multiple of the page size on almost any system */
28#define CLI_BUFFER_SIZE (0xFFFF)
29#define CLI_SAMBA_MAX_LARGE_READX_SIZE (127*1024) /* Works for Samba servers */
30#define CLI_SAMBA_MAX_LARGE_WRITEX_SIZE (127*1024) /* Works for Samba servers */
31#define CLI_WINDOWS_MAX_LARGE_READX_SIZE ((64*1024)-2) /* Windows servers are broken.... */
32#define CLI_WINDOWS_MAX_LARGE_WRITEX_SIZE ((64*1024)-2) /* Windows servers are broken.... */
33#define CLI_SAMBA_MAX_POSIX_LARGE_READX_SIZE (0xFFFF00) /* 24-bit len. */
34#define CLI_SAMBA_MAX_POSIX_LARGE_WRITEX_SIZE (0xFFFF00) /* 24-bit len. */
35
36/*
37 * These definitions depend on smb.h
38 */
39
40struct print_job_info {
41 uint16 id;
42 uint16 priority;
43 size_t size;
44 fstring user;
45 fstring name;
46 time_t t;
47};
48
49struct cli_pipe_auth_data {
50 enum pipe_auth_type auth_type; /* switch for the union below. Defined in ntdomain.h */
51 enum dcerpc_AuthLevel auth_level; /* defined in ntdomain.h */
52
53 char *domain;
54 char *user_name;
55 DATA_BLOB user_session_key;
56
57 union {
58 struct schannel_state *schannel_auth;
59 NTLMSSP_STATE *ntlmssp_state;
60 struct kerberos_auth_struct *kerberos_auth;
61 } a_u;
62};
63
64/**
65 * rpc_cli_transport defines a transport mechanism to ship rpc requests
66 * asynchronously to a server and receive replies
67 */
68
69struct rpc_cli_transport {
70
71 enum dcerpc_transport_t transport;
72
73 /**
74 * Trigger an async read from the server. May return a short read.
75 */
76 struct tevent_req *(*read_send)(TALLOC_CTX *mem_ctx,
77 struct event_context *ev,
78 uint8_t *data, size_t size,
79 void *priv);
80 /**
81 * Get the result from the read_send operation.
82 */
83 NTSTATUS (*read_recv)(struct tevent_req *req, ssize_t *preceived);
84
85 /**
86 * Trigger an async write to the server. May return a short write.
87 */
88 struct tevent_req *(*write_send)(TALLOC_CTX *mem_ctx,
89 struct event_context *ev,
90 const uint8_t *data, size_t size,
91 void *priv);
92 /**
93 * Get the result from the read_send operation.
94 */
95 NTSTATUS (*write_recv)(struct tevent_req *req, ssize_t *psent);
96
97 /**
98 * This is an optimization for the SMB transport. It models the
99 * TransactNamedPipe API call: Send and receive data in one round
100 * trip. The transport implementation is free to set this to NULL,
101 * cli_pipe.c will fall back to the explicit write/read routines.
102 */
103 struct tevent_req *(*trans_send)(TALLOC_CTX *mem_ctx,
104 struct event_context *ev,
105 uint8_t *data, size_t data_len,
106 uint32_t max_rdata_len,
107 void *priv);
108 /**
109 * Get the result from the trans_send operation.
110 */
111 NTSTATUS (*trans_recv)(struct tevent_req *req, TALLOC_CTX *mem_ctx,
112 uint8_t **prdata, uint32_t *prdata_len);
113
114 bool (*is_connected)(void *priv);
115 unsigned int (*set_timeout)(void *priv, unsigned int timeout);
116
117 void *priv;
118};
119
120struct rpc_pipe_client {
121 struct rpc_pipe_client *prev, *next;
122
123 struct rpc_cli_transport *transport;
124
125 struct ndr_syntax_id abstract_syntax;
126 struct ndr_syntax_id transfer_syntax;
127
128 NTSTATUS (*dispatch) (struct rpc_pipe_client *cli,
129 TALLOC_CTX *mem_ctx,
130 const struct ndr_interface_table *table,
131 uint32_t opnum, void *r);
132
133 struct tevent_req *(*dispatch_send)(
134 TALLOC_CTX *mem_ctx,
135 struct tevent_context *ev,
136 struct rpc_pipe_client *cli,
137 const struct ndr_interface_table *table,
138 uint32_t opnum,
139 void *r);
140 NTSTATUS (*dispatch_recv)(struct tevent_req *req,
141 TALLOC_CTX *mem_ctx);
142
143
144 char *desthost;
145 char *srv_name_slash;
146
147 uint16 max_xmit_frag;
148 uint16 max_recv_frag;
149
150 struct cli_pipe_auth_data *auth;
151
152 /* The following is only non-null on a netlogon client pipe. */
153 struct netlogon_creds_CredentialState *dc;
154
155 /* Used by internal rpc_pipe_client */
156 pipes_struct *pipes_struct;
157};
158
159/* Transport encryption state. */
160enum smb_trans_enc_type {
161 SMB_TRANS_ENC_NTLM
162#if defined(HAVE_GSSAPI) && defined(HAVE_KRB5)
163 , SMB_TRANS_ENC_GSS
164#endif
165};
166
167#if defined(HAVE_GSSAPI) && defined(HAVE_KRB5)
168struct smb_tran_enc_state_gss {
169 gss_ctx_id_t gss_ctx;
170 gss_cred_id_t creds;
171};
172#endif
173
174struct smb_trans_enc_state {
175 enum smb_trans_enc_type smb_enc_type;
176 uint16 enc_ctx_num;
177 bool enc_on;
178 union {
179 NTLMSSP_STATE *ntlmssp_state;
180#if defined(HAVE_GSSAPI) && defined(HAVE_KRB5)
181 struct smb_tran_enc_state_gss *gss_state;
182#endif
183 } s;
184};
185
186struct cli_state_seqnum {
187 struct cli_state_seqnum *prev, *next;
188 uint16_t mid;
189 uint32_t seqnum;
190 bool persistent;
191};
192
193struct cli_state {
194 /**
195 * A list of subsidiary connections for DFS.
196 */
197 struct cli_state *prev, *next;
198 int port;
199 int fd;
200 /* Last read or write error. */
201 enum smb_read_errors smb_rw_error;
202 uint16 cnum;
203 uint16 pid;
204 uint16 mid;
205 uint16 vuid;
206 int protocol;
207 int sec_mode;
208 int rap_error;
209 int privileges;
210
211 fstring desthost;
212
213 /* The credentials used to open the cli_state connection. */
214 char *domain;
215 char *user_name;
216 char *password; /* Can be null to force use of zero NTLMSSP session key. */
217
218 /*
219 * The following strings are the
220 * ones returned by the server if
221 * the protocol > NT1.
222 */
223 fstring server_type;
224 fstring server_os;
225 fstring server_domain;
226
227 fstring share;
228 fstring dev;
229 struct nmb_name called;
230 struct nmb_name calling;
231 fstring full_dest_host_name;
232 struct sockaddr_storage dest_ss;
233
234 DATA_BLOB secblob; /* cryptkey or negTokenInit */
235 uint32 sesskey;
236 int serverzone;
237 uint32 servertime;
238 int readbraw_supported;
239 int writebraw_supported;
240 int timeout; /* in milliseconds. */
241 size_t max_xmit;
242 size_t max_mux;
243 char *outbuf;
244 struct cli_state_seqnum *seqnum;
245 char *inbuf;
246 unsigned int bufsize;
247 int initialised;
248 int win95;
249 bool is_samba;
250 uint32 capabilities;
251 uint32 posix_capabilities;
252 bool dfsroot;
253
254#if 0
255 TALLOC_CTX *longterm_mem_ctx;
256 TALLOC_CTX *call_mem_ctx;
257#endif
258
259 struct smb_signing_state *signing_state;
260
261 struct smb_trans_enc_state *trans_enc_state; /* Setup if we're encrypting SMB's. */
262
263 /* the session key for this CLI, outside
264 any per-pipe authenticaion */
265 DATA_BLOB user_session_key;
266
267 /* The list of pipes currently open on this connection. */
268 struct rpc_pipe_client *pipe_list;
269
270 bool use_kerberos;
271 bool fallback_after_kerberos;
272 bool use_spnego;
273 bool use_ccache;
274 bool got_kerberos_mechanism; /* Server supports krb5 in SPNEGO. */
275
276 bool use_oplocks; /* should we use oplocks? */
277 bool use_level_II_oplocks; /* should we use level II oplocks? */
278
279 /* a oplock break request handler */
280 NTSTATUS (*oplock_handler)(struct cli_state *cli, uint16_t fnum, unsigned char level);
281
282 bool force_dos_errors;
283 bool case_sensitive; /* False by default. */
284
285 /* Where (if anywhere) this is mounted under DFS. */
286 char *dfs_mountpoint;
287
288 struct tevent_queue *outgoing;
289 struct tevent_req **pending;
290};
291
292typedef struct file_info {
293 struct cli_state *cli;
294 uint64_t size;
295 uint16 mode;
296 uid_t uid;
297 gid_t gid;
298 /* these times are normally kept in GMT */
299 struct timespec mtime_ts;
300 struct timespec atime_ts;
301 struct timespec ctime_ts;
302 char *name;
303 char short_name[13*3]; /* the *3 is to cope with multi-byte */
304} file_info;
305
306#define CLI_FULL_CONNECTION_DONT_SPNEGO 0x0001
307#define CLI_FULL_CONNECTION_USE_KERBEROS 0x0002
308#define CLI_FULL_CONNECTION_ANONYMOUS_FALLBACK 0x0004
309#define CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS 0x0008
310#define CLI_FULL_CONNECTION_OPLOCKS 0x0010
311#define CLI_FULL_CONNECTION_LEVEL_II_OPLOCKS 0x0020
312#define CLI_FULL_CONNECTION_USE_CCACHE 0x0040
313
314#endif /* _CLIENT_H */
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