summaryrefslogtreecommitdiffstats
path: root/source3/include/rpc_dce.h
blob: 3e615dab80ade69f859f2d8df183c7bc80e99cd3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
/* 
   Unix SMB/CIFS implementation.
   SMB parameters and setup
   Copyright (C) Andrew Tridgell 1992-1997
   Copyright (C) Luke Kenneth Casson Leighton 1996-1997
   Copyright (C) Paul Ashton 1997
   
   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.
*/

#ifndef _DCE_RPC_H /* _DCE_RPC_H */
#define _DCE_RPC_H 

#include "rpc_misc.h"  /* this only pulls in STRHDR */


/* DCE/RPC packet types */

enum RPC_PKT_TYPE
{
	RPC_REQUEST = 0x00,
	RPC_RESPONSE = 0x02,
	RPC_FAULT    = 0x03,
	RPC_BIND     = 0x0B,
	RPC_BINDACK  = 0x0C,
	RPC_BINDNACK = 0x0D,
	RPC_ALTCONT  = 0x0E,
	RPC_ALTCONTRESP = 0x0F,
	RPC_BINDRESP = 0x10 /* not the real name!  this is undocumented! */
};

/* DCE/RPC flags */
#define RPC_FLG_FIRST 0x01
#define RPC_FLG_LAST  0x02
#define RPC_FLG_NOCALL 0x20

/* NTLMSSP message types */
enum NTLM_MESSAGE_TYPE
{
	NTLMSSP_NEGOTIATE = 1,
	NTLMSSP_CHALLENGE = 2,
	NTLMSSP_AUTH      = 3,
	NTLMSSP_UNKNOWN   = 4
};

/* NTLMSSP negotiation flags */
#define NTLMSSP_NEGOTIATE_UNICODE          0x00000001
#define NTLMSSP_NEGOTIATE_OEM              0x00000002
#define NTLMSSP_REQUEST_TARGET             0x00000004
#define NTLMSSP_NEGOTIATE_SIGN             0x00000010 /* Message integrity */
#define NTLMSSP_NEGOTIATE_SEAL             0x00000020 /* Message confidentiality */
#define NTLMSSP_NEGOTIATE_DATAGRAM_STYLE   0x00000040
#define NTLMSSP_NEGOTIATE_LM_KEY           0x00000080
#define NTLMSSP_NEGOTIATE_NETWARE          0x00000100
#define NTLMSSP_NEGOTIATE_NTLM             0x00000200
#define NTLMSSP_NEGOTIATE_DOMAIN_SUPPLIED  0x00001000
#define NTLMSSP_NEGOTIATE_WORKSTATION_SUPPLIED 0x00002000
#define NTLMSSP_NEGOTIATE_THIS_IS_LOCAL_CALL  0x00004000
#define NTLMSSP_NEGOTIATE_ALWAYS_SIGN      0x00008000
#define NTLMSSP_CHAL_INIT_RESPONSE         0x00010000
#define NTLMSSP_CHAL_ACCEPT_RESPONSE       0x00020000
#define NTLMSSP_CHAL_NON_NT_SESSION_KEY    0x00040000
#define NTLMSSP_NEGOTIATE_NTLM2            0x00080000
#define NTLMSSP_CHAL_TARGET_INFO           0x00800000
#define NTLMSSP_NEGOTIATE_128              0x20000000 /* 128-bit encryption */
#define NTLMSSP_NEGOTIATE_KEY_EXCH         0x40000000
#define NTLMSSP_NEGOTIATE_080000000        0x80000000

#define SMBD_NTLMSSP_NEG_FLAGS 0x000082b1 /* ALWAYS_SIGN|NEG_NTLM|NEG_LM|NEG_SEAL|NEG_SIGN|NEG_UNICODE */

/* NTLMSSP signature version */
#define NTLMSSP_SIGN_VERSION 0x01

/* NTLMSSP auth type and level. */
#define NTLMSSP_AUTH_TYPE 0xa
#define NTLMSSP_AUTH_LEVEL 0x6

/* Maximum PDU fragment size. */
#define MAX_PDU_FRAG_LEN 0x1630
/* #define MAX_PDU_FRAG_LEN 0x10b8		this is what w2k sets */

/*
 * Actual structure of a DCE UUID
 */

typedef struct rpc_uuid
{
  uint32 time_low;
  uint16 time_mid;
  uint16 time_hi_and_version;
  uint8 remaining[8];
} RPC_UUID;

#define RPC_UUID_LEN 16

/* RPC_IFACE */
typedef struct rpc_iface_info
{
  RPC_UUID uuid;    /* 16 bytes of rpc interface identification */
  uint32 version;    /* the interface version number */

} RPC_IFACE;

#define RPC_IFACE_LEN (RPC_UUID_LEN + 4)

struct pipe_id_info
{
	/* the names appear not to matter: the syntaxes _do_ matter */

	char *client_pipe;
	RPC_IFACE abstr_syntax; /* this one is the abstract syntax id */

	char *server_pipe;  /* this one is the secondary syntax name */
	RPC_IFACE trans_syntax; /* this one is the primary syntax id */
};

/* RPC_HDR - dce rpc header */
typedef struct rpc_hdr_info
{
  uint8  major; /* 5 - RPC major version */
  uint8  minor; /* 0 - RPC minor version */
  uint8  pkt_type; /* RPC_PKT_TYPE - RPC response packet */
  uint8  flags; /* DCE/RPC flags */
  uint8  pack_type[4]; /* 0x1000 0000 - little-endian packed data representation */
  uint16 frag_len; /* fragment length - data size (bytes) inc header and tail. */
  uint16 auth_len; /* 0 - authentication length  */
  uint32 call_id; /* call identifier.  matches 12th uint32 of incoming RPC data. */

} RPC_HDR;

#define RPC_HEADER_LEN 16

/* RPC_HDR_REQ - ms request rpc header */
typedef struct rpc_hdr_req_info
{
  uint32 alloc_hint;   /* allocation hint - data size (bytes) minus header and tail. */
  uint16 context_id;   /* 0 - presentation context identifier */
  uint16  opnum;        /* opnum */

} RPC_HDR_REQ;

#define RPC_HDR_REQ_LEN 8

/* RPC_HDR_RESP - ms response rpc header */
typedef struct rpc_hdr_resp_info
{
  uint32 alloc_hint;   /* allocation hint - data size (bytes) minus header and tail. */
  uint16 context_id;   /* 0 - presentation context identifier */
  uint8  cancel_count; /* 0 - cancel count */
  uint8  reserved;     /* 0 - reserved. */

} RPC_HDR_RESP;

#define RPC_HDR_RESP_LEN 8

/* RPC_HDR_FAULT - fault rpc header */
typedef struct rpc_hdr_fault_info
{
  NTSTATUS status;
  uint32 reserved; /* 0x0000 0000 */
} RPC_HDR_FAULT;

#define RPC_HDR_FAULT_LEN 8

/* this seems to be the same string name depending on the name of the pipe,
 * but is more likely to be linked to the interface name
 * "srvsvc", "\\PIPE\\ntsvcs"
 * "samr", "\\PIPE\\lsass"
 * "wkssvc", "\\PIPE\\wksvcs"
 * "NETLOGON", "\\PIPE\\NETLOGON"
 */
/* RPC_ADDR_STR */
typedef struct rpc_addr_info
{
  uint16 len;   /* length of the string including null terminator */
  fstring str; /* the string above in single byte, null terminated form */

} RPC_ADDR_STR;

/* RPC_HDR_BBA */
typedef struct rpc_hdr_bba_info
{
  uint16 max_tsize;       /* maximum transmission fragment size (0x1630) */
  uint16 max_rsize;       /* max receive fragment size (0x1630) */
  uint32 assoc_gid;       /* associated group id (0x0) */

} RPC_HDR_BBA;

#define RPC_HDR_BBA_LEN 8

/* RPC_HDR_AUTHA */
typedef struct rpc_hdr_autha_info
{
	uint16 max_tsize;       /* maximum transmission fragment size (0x1630) */
	uint16 max_rsize;       /* max receive fragment size (0x1630) */

	uint8 auth_type; /* 0x0a */
	uint8 auth_level; /* 0x06 */
	uint8 stub_type_len; /* don't know */
	uint8 padding; /* padding */

	uint32 unknown; /* 0x0014a0c0 */

} RPC_HDR_AUTHA;

#define RPC_HDR_AUTHA_LEN 12

/* RPC_HDR_AUTH */
typedef struct rpc_hdr_auth_info
{
	uint8 auth_type; /* 0x0a */
	uint8 auth_level; /* 0x06 */
	uint8 stub_type_len; /* don't know */
	uint8 padding; /* padding */

	uint32 unknown; /* pointer */

} RPC_HDR_AUTH;

#define RPC_HDR_AUTH_LEN 8

/* RPC_BIND_REQ - ms req bind */
typedef struct rpc_bind_req_info
{
  RPC_HDR_BBA bba;

  uint32 num_elements;    /* the number of elements (0x1) */
  uint16 context_id;      /* presentation context identifier (0x0) */
  uint8 num_syntaxes;     /* the number of syntaxes (has always been 1?)(0x1) */

  RPC_IFACE abstract;     /* num and vers. of interface client is using */
  RPC_IFACE transfer;     /* num and vers. of interface to use for replies */
  
} RPC_HDR_RB;

/* 
 * The following length is 8 bytes RPC_HDR_BBA_LEN, 8 bytes internals 
 * (with 3 bytes padding), + 2 x RPC_IFACE_LEN bytes for RPC_IFACE structs.
 */

#define RPC_HDR_RB_LEN (RPC_HDR_BBA_LEN + 8 + (2*RPC_IFACE_LEN))

/* RPC_RESULTS - can only cope with one reason, right now... */
typedef struct rpc_results_info
{
/* uint8[] # 4-byte alignment padding, against SMB header */

  uint8 num_results; /* the number of results (0x01) */

/* uint8[] # 4-byte alignment padding, against SMB header */

  uint16 result; /* result (0x00 = accept) */
  uint16 reason; /* reason (0x00 = no reason specified) */

} RPC_RESULTS;

/* RPC_HDR_BA */
typedef struct rpc_hdr_ba_info
{
  RPC_HDR_BBA bba;

  RPC_ADDR_STR addr    ;  /* the secondary address string, as described earlier */
  RPC_RESULTS  res     ; /* results and reasons */
  RPC_IFACE    transfer; /* the transfer syntax from the request */

} RPC_HDR_BA;

/* RPC_AUTH_VERIFIER */
typedef struct rpc_auth_verif_info
{
	fstring signature; /* "NTLMSSP" */
	uint32  msg_type; /* NTLMSSP_MESSAGE_TYPE (1,2,3) */

} RPC_AUTH_VERIFIER;

/* this is TEMPORARILY coded up as a specific structure */
/* this structure comes after the bind request */
/* RPC_AUTH_NTLMSSP_NEG */
typedef struct rpc_auth_ntlmssp_neg_info
{
	uint32  neg_flgs; /* 0x0000 b2b3 */

	STRHDR hdr_myname; /* offset is against START of this structure */
	STRHDR hdr_domain; /* offset is against START of this structure */

	fstring myname; /* calling workstation's name */
	fstring domain; /* calling workstations's domain */

} RPC_AUTH_NTLMSSP_NEG;

/* this is TEMPORARILY coded up as a specific structure */
/* this structure comes after the bind acknowledgement */
/* RPC_AUTH_NTLMSSP_CHAL */
typedef struct rpc_auth_ntlmssp_chal_info
{
	uint32 unknown_1; /* 0x0000 0000 */
	uint32 unknown_2; /* 0x0000 0028 */
	uint32 neg_flags; /* 0x0000 82b1 */

	uint8 challenge[8]; /* ntlm challenge */
	uint8 reserved [8]; /* zeros */

} RPC_AUTH_NTLMSSP_CHAL;


/* RPC_AUTH_NTLMSSP_RESP */
typedef struct rpc_auth_ntlmssp_resp_info
{
	STRHDR hdr_lm_resp; /* 24 byte response */
	STRHDR hdr_nt_resp; /* 24 byte response */
	STRHDR hdr_domain;
	STRHDR hdr_usr;
	STRHDR hdr_wks;
	STRHDR hdr_sess_key; /* NULL unless negotiated */
	uint32 neg_flags; /* 0x0000 82b1 */

	fstring sess_key;
	fstring wks;
	fstring user;
	fstring domain;
	fstring nt_resp;
	fstring lm_resp;

} RPC_AUTH_NTLMSSP_RESP;

/* attached to the end of encrypted rpc requests and responses */
/* RPC_AUTH_NTLMSSP_CHK */
typedef struct rpc_auth_ntlmssp_chk_info
{
	uint32 ver; /* 0x0000 0001 */
	uint32 reserved;
	uint32 crc32; /* checksum using 0xEDB8 8320 as a polynomial */
	uint32 seq_num;

} RPC_AUTH_NTLMSSP_CHK;

#define RPC_AUTH_NTLMSSP_CHK_LEN 16


#endif /* _DCE_RPC_H */