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
|
/*
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
/* DCE/RPC packet types */
enum RPC_PKT_TYPE {
RPC_REQUEST = 0x00, /* Ordinary request. */
RPC_PING = 0x01, /* Connectionless is server alive ? */
RPC_RESPONSE = 0x02, /* Ordinary reply. */
RPC_FAULT = 0x03, /* Fault in processing of call. */
RPC_WORKING = 0x04, /* Connectionless reply to a ping when server busy. */
RPC_NOCALL = 0x05, /* Connectionless reply to a ping when server has lost part of clients call. */
RPC_REJECT = 0x06, /* Refuse a request with a code. */
RPC_ACK = 0x07, /* Connectionless client to server code. */
RPC_CL_CANCEL= 0x08, /* Connectionless cancel. */
RPC_FACK = 0x09, /* Connectionless fragment ack. Both client and server send. */
RPC_CANCEL_ACK = 0x0A, /* Server ACK to client cancel request. */
RPC_BIND = 0x0B, /* Bind to interface. */
RPC_BINDACK = 0x0C, /* Server ack of bind. */
RPC_BINDNACK = 0x0D, /* Server nack of bind. */
RPC_ALTCONT = 0x0E, /* Alter auth. */
RPC_ALTCONTRESP = 0x0F, /* Reply to alter auth. */
RPC_AUTH3 = 0x10, /* not the real name! this is undocumented! */
RPC_SHUTDOWN = 0x11, /* Server to client request to shutdown. */
RPC_CO_CANCEL= 0x12, /* Connection-oriented cancel request. */
RPC_ORPHANED = 0x13 /* Client telling server it's aborting a partially sent request or telling
server to stop sending replies. */
};
/* DCE/RPC flags */
#define RPC_FLG_FIRST 0x01
#define RPC_FLG_LAST 0x02
#define RPC_FLG_NOCALL 0x20
#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
/* DCE RPC auth types - extended by Microsoft. */
#define RPC_ANONYMOUS_AUTH_TYPE 0
#define RPC_AUTH_TYPE_KRB5_1 1
#define RPC_SPNEGO_AUTH_TYPE 9
#define RPC_NTLMSSP_AUTH_TYPE 10
#define RPC_KRB5_AUTH_TYPE 16 /* Not yet implemented. */
#define RPC_SCHANNEL_AUTH_TYPE 68 /* 0x44 */
/* DCE-RPC standard identifiers to indicate
signing or sealing of an RPC pipe */
#define RPC_AUTH_LEVEL_NONE 1
#define RPC_AUTH_LEVEL_CONNECT 2
#define RPC_AUTH_LEVEL_CALL 3
#define RPC_AUTH_LEVEL_PACKET 4
#define RPC_AUTH_LEVEL_INTEGRITY 5
#define RPC_AUTH_LEVEL_PRIVACY 6
#if 0
#define RPC_PIPE_AUTH_SIGN_LEVEL 0x5
#define RPC_PIPE_AUTH_SEAL_LEVEL 0x6
#endif
#define DCERPC_FAULT_OP_RNG_ERROR 0x1c010002
#define DCERPC_FAULT_UNK_IF 0x1c010003
#define DCERPC_FAULT_INVALID_TAG 0x1c000006
#define DCERPC_FAULT_CONTEXT_MISMATCH 0x1c00001a
#define DCERPC_FAULT_OTHER 0x00000001
#define DCERPC_FAULT_ACCESS_DENIED 0x00000005
#define DCERPC_FAULT_CANT_PERFORM 0x000006d8
#define DCERPC_FAULT_NDR 0x000006f7
/* Netlogon schannel auth type and level */
#define SCHANNEL_SIGN_SIGNATURE { 0x77, 0x00, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00 }
#define SCHANNEL_SEAL_SIGNATURE { 0x77, 0x00, 0x7a, 0x00, 0xff, 0xff, 0x00, 0x00 }
#define RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN 0x20
#define RPC_AUTH_SCHANNEL_SIGN_ONLY_CHK_LEN 0x18
#define NETLOGON_NEG_ARCFOUR 0x00000004
#define NETLOGON_NEG_128BIT 0x00004000
#define NETLOGON_NEG_SCHANNEL 0x40000000
/* The 7 here seems to be required to get Win2k not to downgrade us
to NT4. Actually, anything other than 1ff would seem to do... */
#define NETLOGON_NEG_AUTH2_FLAGS 0x000701ff
#define NETLOGON_NEG_DOMAIN_TRUST_ACCOUNT 0x2010b000
/* these are the flags that ADS clients use */
#define NETLOGON_NEG_AUTH2_ADS_FLAGS (0x200fbffb | NETLOGON_NEG_ARCFOUR | NETLOGON_NEG_128BIT | NETLOGON_NEG_SCHANNEL)
enum schannel_direction {
SENDER_IS_INITIATOR,
SENDER_IS_ACCEPTOR
};
/* Maximum size of the signing data in a fragment. */
#define RPC_MAX_SIGN_SIZE 0x20 /* 32 */
/* Maximum PDU fragment size. */
/* #define MAX_PDU_FRAG_LEN 0x1630 this is what wnt sets */
#define RPC_MAX_PDU_FRAG_LEN 0x10b8 /* this is what w2k sets */
/* RPC_IFACE */
typedef struct rpc_iface_info {
struct GUID uuid; /* 16 bytes of rpc interface identification */
uint32 version; /* the interface version number */
} RPC_IFACE;
#define RPC_IFACE_LEN (UUID_SIZE + 4)
struct pipe_id_info {
/* the names appear not to matter: the syntaxes _do_ matter */
const char *client_pipe;
RPC_IFACE abstr_syntax; /* this one is the abstract syntax id */
const 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; /* 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 - bind acknowledge, and alter context response. */
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_AUTH */
typedef struct rpc_hdr_auth_info {
uint8 auth_type; /* See XXX_AUTH_TYPE above. */
uint8 auth_level; /* See RPC_PIPE_AUTH_XXX_LEVEL above. */
uint8 auth_pad_len;
uint8 auth_reserved;
uint32 auth_context_id;
} RPC_HDR_AUTH;
#define RPC_HDR_AUTH_LEN 8
/* this is TEMPORARILY coded up as a specific structure */
/* this structure comes after the bind request */
/* RPC_AUTH_SCHANNEL_NEG */
typedef struct rpc_auth_schannel_neg_info {
uint32 type1; /* Always zero ? */
uint32 type2; /* Types 0x3 and 0x13 seen. Check AcquireSecurityContext() docs.... */
fstring domain; /* calling workstations's domain */
fstring myname; /* calling workstation's name */
} RPC_AUTH_SCHANNEL_NEG;
/* attached to the end of encrypted rpc requests and responses */
/* RPC_AUTH_SCHANNEL_CHK */
typedef struct rpc_auth_schannel_chk_info {
uint8 sig [8]; /* 77 00 7a 00 ff ff 00 00 */
uint8 packet_digest[8]; /* checksum over the packet, MD5'ed with session key */
uint8 seq_num[8]; /* verifier, seq num */
uint8 confounder[8]; /* random 8-byte nonce */
} RPC_AUTH_SCHANNEL_CHK;
typedef struct rpc_context {
uint16 context_id; /* presentation context identifier. */
uint8 num_transfer_syntaxes; /* the number of syntaxes */
RPC_IFACE abstract; /* num and vers. of interface client is using */
RPC_IFACE *transfer; /* Array of transfer interfaces. */
} RPC_CONTEXT;
/* RPC_BIND_REQ - ms req bind */
typedef struct rpc_bind_req_info {
RPC_HDR_BBA bba;
uint8 num_contexts; /* the number of contexts */
RPC_CONTEXT *rpc_context;
} RPC_HDR_RB;
/*
* The following length is 8 bytes RPC_HDR_BBA_LEN +
* 4 bytes size of context count +
* (context_count * (4 bytes of context_id, size of transfer syntax count + RPC_IFACE_LEN bytes +
* (transfer_syntax_count * RPC_IFACE_LEN bytes)))
*/
#define RPC_HDR_RB_LEN(rpc_hdr_rb) (RPC_HDR_BBA_LEN + 4 + \
((rpc_hdr_rb)->num_contexts) * (4 + RPC_IFACE_LEN + (((rpc_hdr_rb)->rpc_context->num_transfer_syntaxes)*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".. Ok, not quite anymore */
uint32 msg_type; /* NTLMSSP_MESSAGE_TYPE (1,2,3) and 5 for schannel */
} RPC_AUTH_VERIFIER;
#endif /* _DCE_RPC_H */
|
