2 Unix SMB/Netbios implementation.
4 SMB parameters and setup
5 Copyright (C) Andrew Tridgell 1992-1997
6 Copyright (C) Luke Kenneth Casson Leighton 1996-1997
7 Copyright (C) Paul Ashton 1997
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 #ifndef _DCE_RPC_H /* _DCE_RPC_H */
27 #include "rpc_misc.h" /* this only pulls in STRHDR */
30 /* DCE/RPC packet types */
40 RPC_BINDRESP = 0x10 /* not the real name! this is undocumented! */
44 #define RPC_FLG_FIRST 0x01
45 #define RPC_FLG_LAST 0x02
47 /* NTLMSSP message types */
48 enum NTLM_MESSAGE_TYPE
50 NTLMSSP_NEGOTIATE = 1,
51 NTLMSSP_CHALLENGE = 2,
56 /* NTLMSSP negotiation flags */
57 #define NTLMSSP_NEGOTIATE_UNICODE 0x00000001
58 #define NTLMSSP_NEGOTIATE_OEM 0x00000002
59 #define NTLMSSP_REQUEST_TARGET 0x00000004
60 #define NTLMSSP_NEGOTIATE_SIGN 0x00000010
61 #define NTLMSSP_NEGOTIATE_SEAL 0x00000020
62 #define NTLMSSP_NEGOTIATE_LM_KEY 0x00000080
63 #define NTLMSSP_NEGOTIATE_NTLM 0x00000200
64 #define NTLMSSP_NEGOTIATE_00001000 0x00001000
65 #define NTLMSSP_NEGOTIATE_00002000 0x00002000
66 #define NTLMSSP_NEGOTIATE_ALWAYS_SIGN 0x00008000
67 #define NTLMSSP_NEGOTIATE_NTLM2 0x00080000
68 #define NTLMSSP_NEGOTIATE_TARGET_INFO 0x00800000
69 #define NTLMSSP_NEGOTIATE_128 0x20000000
70 #define NTLMSSP_NEGOTIATE_KEY_EXCH 0x40000000
72 #define SMBD_NTLMSSP_NEG_FLAGS 0x000082b1
74 /* NTLMSSP signature version */
75 #define NTLMSSP_SIGN_VERSION 0x01
77 /* NTLMSSP auth type and level. */
78 #define NTLMSSP_AUTH_TYPE 0xa
79 #define NTLMSSP_AUTH_LEVEL 0x6
81 /* Maximum PDU fragment size. */
82 #define MAX_PDU_FRAG_LEN 0x1630
85 * Actual structure of a DCE UUID
88 typedef struct rpc_uuid
92 uint16 time_hi_and_version;
96 #define RPC_UUID_LEN 16
99 typedef struct rpc_iface_info
101 RPC_UUID uuid; /* 16 bytes of rpc interface identification */
102 uint32 version; /* the interface version number */
106 #define RPC_IFACE_LEN (RPC_UUID_LEN + 4)
110 /* the names appear not to matter: the syntaxes _do_ matter */
113 RPC_IFACE abstr_syntax; /* this one is the abstract syntax id */
115 char *server_pipe; /* this one is the secondary syntax name */
116 RPC_IFACE trans_syntax; /* this one is the primary syntax id */
119 /* RPC_HDR - dce rpc header */
120 typedef struct rpc_hdr_info
122 uint8 major; /* 5 - RPC major version */
123 uint8 minor; /* 0 - RPC minor version */
124 uint8 pkt_type; /* RPC_PKT_TYPE - RPC response packet */
125 uint8 flags; /* DCE/RPC flags */
126 uint8 pack_type[4]; /* 0x1000 0000 - little-endian packed data representation */
127 uint16 frag_len; /* fragment length - data size (bytes) inc header and tail. */
128 uint16 auth_len; /* 0 - authentication length */
129 uint32 call_id; /* call identifier. matches 12th uint32 of incoming RPC data. */
133 #define RPC_HEADER_LEN 16
135 /* RPC_HDR_REQ - ms request rpc header */
136 typedef struct rpc_hdr_req_info
138 uint32 alloc_hint; /* allocation hint - data size (bytes) minus header and tail. */
139 uint16 context_id; /* 0 - presentation context identifier */
140 uint16 opnum; /* opnum */
144 #define RPC_HDR_REQ_LEN 8
146 /* RPC_HDR_RESP - ms response rpc header */
147 typedef struct rpc_hdr_resp_info
149 uint32 alloc_hint; /* allocation hint - data size (bytes) minus header and tail. */
150 uint16 context_id; /* 0 - presentation context identifier */
151 uint8 cancel_count; /* 0 - cancel count */
152 uint8 reserved; /* 0 - reserved. */
156 #define RPC_HDR_RESP_LEN 8
158 /* this seems to be the same string name depending on the name of the pipe,
159 * but is more likely to be linked to the interface name
160 * "srvsvc", "\\PIPE\\ntsvcs"
161 * "samr", "\\PIPE\\lsass"
162 * "wkssvc", "\\PIPE\\wksvcs"
163 * "NETLOGON", "\\PIPE\\NETLOGON"
166 typedef struct rpc_addr_info
168 uint16 len; /* length of the string including null terminator */
169 fstring str; /* the string above in single byte, null terminated form */
174 typedef struct rpc_hdr_bba_info
176 uint16 max_tsize; /* maximum transmission fragment size (0x1630) */
177 uint16 max_rsize; /* max receive fragment size (0x1630) */
178 uint32 assoc_gid; /* associated group id (0x0) */
182 #define RPC_HDR_BBA_LEN 8
185 typedef struct rpc_hdr_autha_info
187 uint16 max_tsize; /* maximum transmission fragment size (0x1630) */
188 uint16 max_rsize; /* max receive fragment size (0x1630) */
190 uint8 auth_type; /* 0x0a */
191 uint8 auth_level; /* 0x06 */
192 uint8 stub_type_len; /* don't know */
193 uint8 padding; /* padding */
195 uint32 unknown; /* 0x0014a0c0 */
199 #define RPC_HDR_AUTHA_LEN 12
202 typedef struct rpc_hdr_auth_info
204 uint8 auth_type; /* 0x0a */
205 uint8 auth_level; /* 0x06 */
206 uint8 stub_type_len; /* don't know */
207 uint8 padding; /* padding */
209 uint32 unknown; /* pointer */
213 #define RPC_HDR_AUTH_LEN 8
215 /* RPC_BIND_REQ - ms req bind */
216 typedef struct rpc_bind_req_info
220 uint32 num_elements; /* the number of elements (0x1) */
221 uint16 context_id; /* presentation context identifier (0x0) */
222 uint8 num_syntaxes; /* the number of syntaxes (has always been 1?)(0x1) */
224 RPC_IFACE abstract; /* num and vers. of interface client is using */
225 RPC_IFACE transfer; /* num and vers. of interface to use for replies */
230 * The following length is 8 bytes RPC_HDR_BBA_LEN, 8 bytes internals
231 * (with 3 bytes padding), + 2 x RPC_IFACE_LEN bytes for RPC_IFACE structs.
234 #define RPC_HDR_RB_LEN (RPC_HDR_BBA_LEN + 8 + (2*RPC_IFACE_LEN))
236 /* RPC_RESULTS - can only cope with one reason, right now... */
237 typedef struct rpc_results_info
239 /* uint8[] # 4-byte alignment padding, against SMB header */
241 uint8 num_results; /* the number of results (0x01) */
243 /* uint8[] # 4-byte alignment padding, against SMB header */
245 uint16 result; /* result (0x00 = accept) */
246 uint16 reason; /* reason (0x00 = no reason specified) */
251 typedef struct rpc_hdr_ba_info
255 RPC_ADDR_STR addr ; /* the secondary address string, as described earlier */
256 RPC_RESULTS res ; /* results and reasons */
257 RPC_IFACE transfer; /* the transfer syntax from the request */
261 /* RPC_AUTH_VERIFIER */
262 typedef struct rpc_auth_verif_info
264 fstring signature; /* "NTLMSSP" */
265 uint32 msg_type; /* NTLMSSP_MESSAGE_TYPE (1,2,3) */
269 /* this is TEMPORARILY coded up as a specific structure */
270 /* this structure comes after the bind request */
271 /* RPC_AUTH_NTLMSSP_NEG */
272 typedef struct rpc_auth_ntlmssp_neg_info
274 uint32 neg_flgs; /* 0x0000 b2b3 */
276 STRHDR hdr_myname; /* offset is against START of this structure */
277 STRHDR hdr_domain; /* offset is against START of this structure */
279 fstring myname; /* calling workstation's name */
280 fstring domain; /* calling workstations's domain */
282 } RPC_AUTH_NTLMSSP_NEG;
284 /* this is TEMPORARILY coded up as a specific structure */
285 /* this structure comes after the bind acknowledgement */
286 /* RPC_AUTH_NTLMSSP_CHAL */
287 typedef struct rpc_auth_ntlmssp_chal_info
289 uint32 unknown_1; /* 0x0000 0000 */
290 uint32 unknown_2; /* 0x0000 0028 */
291 uint32 neg_flags; /* 0x0000 82b1 */
293 uint8 challenge[8]; /* ntlm challenge */
294 uint8 reserved [8]; /* zeros */
296 } RPC_AUTH_NTLMSSP_CHAL;
299 /* RPC_AUTH_NTLMSSP_RESP */
300 typedef struct rpc_auth_ntlmssp_resp_info
302 STRHDR hdr_lm_resp; /* 24 byte response */
303 STRHDR hdr_nt_resp; /* 24 byte response */
307 STRHDR hdr_sess_key; /* NULL unless negotiated */
308 uint32 neg_flags; /* 0x0000 82b1 */
317 } RPC_AUTH_NTLMSSP_RESP;
319 /* attached to the end of encrypted rpc requests and responses */
320 /* RPC_AUTH_NTLMSSP_CHK */
321 typedef struct rpc_auth_ntlmssp_chk_info
323 uint32 ver; /* 0x0000 0001 */
325 uint32 crc32; /* checksum using 0xEDB8 8320 as a polynomial */
328 } RPC_AUTH_NTLMSSP_CHK;
330 #define RPC_AUTH_NTLMSSP_CHK_LEN 16
332 #endif /* _DCE_RPC_H */