2 Unix SMB/CIFS implementation.
3 SMB parameters and setup
4 Copyright (C) Andrew Tridgell 1992-1997
5 Copyright (C) Luke Kenneth Casson Leighton 1996-1997
6 Copyright (C) Paul Ashton 1997
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 2 of the License, or
11 (at your option) any later version.
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.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 #ifndef _DCE_RPC_H /* _DCE_RPC_H */
26 #include "rpc_misc.h" /* this only pulls in STRHDR */
29 /* DCE/RPC packet types */
40 RPC_ALTCONTRESP
= 0x0F,
41 RPC_BINDRESP
= 0x10 /* not the real name! this is undocumented! */
45 #define RPC_FLG_FIRST 0x01
46 #define RPC_FLG_LAST 0x02
47 #define RPC_FLG_NOCALL 0x20
49 /* NTLMSSP message types */
50 enum NTLM_MESSAGE_TYPE
52 NTLMSSP_NEGOTIATE
= 1,
53 NTLMSSP_CHALLENGE
= 2,
58 /* NTLMSSP negotiation flags */
59 #define NTLMSSP_NEGOTIATE_UNICODE 0x00000001
60 #define NTLMSSP_NEGOTIATE_OEM 0x00000002
61 #define NTLMSSP_REQUEST_TARGET 0x00000004
62 #define NTLMSSP_NEGOTIATE_SIGN 0x00000010 /* Message integrity */
63 #define NTLMSSP_NEGOTIATE_SEAL 0x00000020 /* Message confidentiality */
64 #define NTLMSSP_NEGOTIATE_DATAGRAM_STYLE 0x00000040
65 #define NTLMSSP_NEGOTIATE_LM_KEY 0x00000080
66 #define NTLMSSP_NEGOTIATE_NETWARE 0x00000100
67 #define NTLMSSP_NEGOTIATE_NTLM 0x00000200
68 #define NTLMSSP_NEGOTIATE_DOMAIN_SUPPLIED 0x00001000
69 #define NTLMSSP_NEGOTIATE_WORKSTATION_SUPPLIED 0x00002000
70 #define NTLMSSP_NEGOTIATE_THIS_IS_LOCAL_CALL 0x00004000
71 #define NTLMSSP_NEGOTIATE_ALWAYS_SIGN 0x00008000
72 #define NTLMSSP_CHAL_INIT_RESPONSE 0x00010000
73 #define NTLMSSP_CHAL_ACCEPT_RESPONSE 0x00020000
74 #define NTLMSSP_CHAL_NON_NT_SESSION_KEY 0x00040000
75 #define NTLMSSP_NEGOTIATE_NTLM2 0x00080000
76 #define NTLMSSP_CHAL_TARGET_INFO 0x00800000
77 #define NTLMSSP_NEGOTIATE_128 0x20000000 /* 128-bit encryption */
78 #define NTLMSSP_NEGOTIATE_KEY_EXCH 0x40000000
79 #define NTLMSSP_NEGOTIATE_080000000 0x80000000
81 #define SMBD_NTLMSSP_NEG_FLAGS 0x000082b1 /* ALWAYS_SIGN|NEG_NTLM|NEG_LM|NEG_SEAL|NEG_SIGN|NEG_UNICODE */
83 /* NTLMSSP signature version */
84 #define NTLMSSP_SIGN_VERSION 0x01
86 /* NTLMSSP auth type and level. */
87 #define NTLMSSP_AUTH_TYPE 0xa
88 #define NTLMSSP_AUTH_LEVEL 0x6
90 /* Maximum PDU fragment size. */
91 #define MAX_PDU_FRAG_LEN 0x1630
92 /* #define MAX_PDU_FRAG_LEN 0x10b8 this is what w2k sets */
95 * Actual structure of a DCE UUID
98 typedef struct rpc_uuid
102 uint16 time_hi_and_version
;
106 #define RPC_UUID_LEN 16
109 typedef struct rpc_iface_info
111 RPC_UUID uuid
; /* 16 bytes of rpc interface identification */
112 uint32 version
; /* the interface version number */
116 #define RPC_IFACE_LEN (RPC_UUID_LEN + 4)
120 /* the names appear not to matter: the syntaxes _do_ matter */
123 RPC_IFACE abstr_syntax
; /* this one is the abstract syntax id */
125 char *server_pipe
; /* this one is the secondary syntax name */
126 RPC_IFACE trans_syntax
; /* this one is the primary syntax id */
129 /* RPC_HDR - dce rpc header */
130 typedef struct rpc_hdr_info
132 uint8 major
; /* 5 - RPC major version */
133 uint8 minor
; /* 0 - RPC minor version */
134 uint8 pkt_type
; /* RPC_PKT_TYPE - RPC response packet */
135 uint8 flags
; /* DCE/RPC flags */
136 uint8 pack_type
[4]; /* 0x1000 0000 - little-endian packed data representation */
137 uint16 frag_len
; /* fragment length - data size (bytes) inc header and tail. */
138 uint16 auth_len
; /* 0 - authentication length */
139 uint32 call_id
; /* call identifier. matches 12th uint32 of incoming RPC data. */
143 #define RPC_HEADER_LEN 16
145 /* RPC_HDR_REQ - ms request rpc header */
146 typedef struct rpc_hdr_req_info
148 uint32 alloc_hint
; /* allocation hint - data size (bytes) minus header and tail. */
149 uint16 context_id
; /* 0 - presentation context identifier */
150 uint16 opnum
; /* opnum */
154 #define RPC_HDR_REQ_LEN 8
156 /* RPC_HDR_RESP - ms response rpc header */
157 typedef struct rpc_hdr_resp_info
159 uint32 alloc_hint
; /* allocation hint - data size (bytes) minus header and tail. */
160 uint16 context_id
; /* 0 - presentation context identifier */
161 uint8 cancel_count
; /* 0 - cancel count */
162 uint8 reserved
; /* 0 - reserved. */
166 #define RPC_HDR_RESP_LEN 8
168 /* RPC_HDR_FAULT - fault rpc header */
169 typedef struct rpc_hdr_fault_info
172 uint32 reserved
; /* 0x0000 0000 */
175 #define RPC_HDR_FAULT_LEN 8
177 /* this seems to be the same string name depending on the name of the pipe,
178 * but is more likely to be linked to the interface name
179 * "srvsvc", "\\PIPE\\ntsvcs"
180 * "samr", "\\PIPE\\lsass"
181 * "wkssvc", "\\PIPE\\wksvcs"
182 * "NETLOGON", "\\PIPE\\NETLOGON"
185 typedef struct rpc_addr_info
187 uint16 len
; /* length of the string including null terminator */
188 fstring str
; /* the string above in single byte, null terminated form */
193 typedef struct rpc_hdr_bba_info
195 uint16 max_tsize
; /* maximum transmission fragment size (0x1630) */
196 uint16 max_rsize
; /* max receive fragment size (0x1630) */
197 uint32 assoc_gid
; /* associated group id (0x0) */
201 #define RPC_HDR_BBA_LEN 8
204 typedef struct rpc_hdr_autha_info
206 uint16 max_tsize
; /* maximum transmission fragment size (0x1630) */
207 uint16 max_rsize
; /* max receive fragment size (0x1630) */
209 uint8 auth_type
; /* 0x0a */
210 uint8 auth_level
; /* 0x06 */
211 uint8 stub_type_len
; /* don't know */
212 uint8 padding
; /* padding */
214 uint32 unknown
; /* 0x0014a0c0 */
218 #define RPC_HDR_AUTHA_LEN 12
221 typedef struct rpc_hdr_auth_info
223 uint8 auth_type
; /* 0x0a */
224 uint8 auth_level
; /* 0x06 */
225 uint8 stub_type_len
; /* don't know */
226 uint8 padding
; /* padding */
228 uint32 unknown
; /* pointer */
232 #define RPC_HDR_AUTH_LEN 8
234 /* RPC_BIND_REQ - ms req bind */
235 typedef struct rpc_bind_req_info
239 uint32 num_elements
; /* the number of elements (0x1) */
240 uint16 context_id
; /* presentation context identifier (0x0) */
241 uint8 num_syntaxes
; /* the number of syntaxes (has always been 1?)(0x1) */
243 RPC_IFACE abstract
; /* num and vers. of interface client is using */
244 RPC_IFACE transfer
; /* num and vers. of interface to use for replies */
249 * The following length is 8 bytes RPC_HDR_BBA_LEN, 8 bytes internals
250 * (with 3 bytes padding), + 2 x RPC_IFACE_LEN bytes for RPC_IFACE structs.
253 #define RPC_HDR_RB_LEN (RPC_HDR_BBA_LEN + 8 + (2*RPC_IFACE_LEN))
255 /* RPC_RESULTS - can only cope with one reason, right now... */
256 typedef struct rpc_results_info
258 /* uint8[] # 4-byte alignment padding, against SMB header */
260 uint8 num_results
; /* the number of results (0x01) */
262 /* uint8[] # 4-byte alignment padding, against SMB header */
264 uint16 result
; /* result (0x00 = accept) */
265 uint16 reason
; /* reason (0x00 = no reason specified) */
270 typedef struct rpc_hdr_ba_info
274 RPC_ADDR_STR addr
; /* the secondary address string, as described earlier */
275 RPC_RESULTS res
; /* results and reasons */
276 RPC_IFACE transfer
; /* the transfer syntax from the request */
280 /* RPC_AUTH_VERIFIER */
281 typedef struct rpc_auth_verif_info
283 fstring signature
; /* "NTLMSSP" */
284 uint32 msg_type
; /* NTLMSSP_MESSAGE_TYPE (1,2,3) */
288 /* this is TEMPORARILY coded up as a specific structure */
289 /* this structure comes after the bind request */
290 /* RPC_AUTH_NTLMSSP_NEG */
291 typedef struct rpc_auth_ntlmssp_neg_info
293 uint32 neg_flgs
; /* 0x0000 b2b3 */
295 STRHDR hdr_myname
; /* offset is against START of this structure */
296 STRHDR hdr_domain
; /* offset is against START of this structure */
298 fstring myname
; /* calling workstation's name */
299 fstring domain
; /* calling workstations's domain */
301 } RPC_AUTH_NTLMSSP_NEG
;
303 /* this is TEMPORARILY coded up as a specific structure */
304 /* this structure comes after the bind acknowledgement */
305 /* RPC_AUTH_NTLMSSP_CHAL */
306 typedef struct rpc_auth_ntlmssp_chal_info
308 uint32 unknown_1
; /* 0x0000 0000 */
309 uint32 unknown_2
; /* 0x0000 0028 */
310 uint32 neg_flags
; /* 0x0000 82b1 */
312 uint8 challenge
[8]; /* ntlm challenge */
313 uint8 reserved
[8]; /* zeros */
315 } RPC_AUTH_NTLMSSP_CHAL
;
318 /* RPC_AUTH_NTLMSSP_RESP */
319 typedef struct rpc_auth_ntlmssp_resp_info
321 STRHDR hdr_lm_resp
; /* 24 byte response */
322 STRHDR hdr_nt_resp
; /* 24 byte response */
326 STRHDR hdr_sess_key
; /* NULL unless negotiated */
327 uint32 neg_flags
; /* 0x0000 82b1 */
336 } RPC_AUTH_NTLMSSP_RESP
;
338 /* attached to the end of encrypted rpc requests and responses */
339 /* RPC_AUTH_NTLMSSP_CHK */
340 typedef struct rpc_auth_ntlmssp_chk_info
342 uint32 ver
; /* 0x0000 0001 */
344 uint32 crc32
; /* checksum using 0xEDB8 8320 as a polynomial */
347 } RPC_AUTH_NTLMSSP_CHK
;
349 #define RPC_AUTH_NTLMSSP_CHK_LEN 16
352 #endif /* _DCE_RPC_H */