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 #define SMBD_NTLMSSP_NEG_FLAGS 0x000082b1 /* ALWAYS_SIGN|NEG_NTLM|NEG_LM|NEG_SEAL|NEG_SIGN|NEG_UNICODE */
51 /* NTLMSSP signature version */
52 #define NTLMSSP_SIGN_VERSION 0x01
54 /* NTLMSSP auth type */
55 #define NTLMSSP_AUTH_TYPE 0xa
57 /* DCE-RPC standard identifiers to indicate
58 signing or sealing of an RPC pipe */
59 #define RPC_PIPE_AUTH_SIGN_LEVEL 0x5
60 #define RPC_PIPE_AUTH_SEAL_LEVEL 0x6
62 /* Netlogon schannel auth type and level */
63 #define NETSEC_AUTH_TYPE 0x44
64 #define NETSEC_SIGNATURE { 0x77, 0x00, 0x7a, 0x00, 0xff, 0xff, 0x00, 0x00 }
65 #define RPC_AUTH_NETSEC_CHK_LEN 0x20
66 #define NETLOGON_NEG_SCHANNEL 0x40000000
74 /* Internal Flags to indicate what type of authentication on the pipe */
75 #define AUTH_PIPE_SIGN 0x0001
76 #define AUTH_PIPE_SEAL 0x0002
77 #define AUTH_PIPE_NTLMSSP 0x0004
78 #define AUTH_PIPE_NETSEC 0x0008
80 /* Maximum PDU fragment size. */
81 #define MAX_PDU_FRAG_LEN 0x1630
82 /* #define MAX_PDU_FRAG_LEN 0x10b8 this is what w2k sets */
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 */
112 const char *client_pipe;
113 RPC_IFACE abstr_syntax; /* this one is the abstract syntax id */
115 const 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 /* RPC_HDR_FAULT - fault rpc header */
159 typedef struct rpc_hdr_fault_info
162 uint32 reserved; /* 0x0000 0000 */
165 #define RPC_HDR_FAULT_LEN 8
167 /* this seems to be the same string name depending on the name of the pipe,
168 * but is more likely to be linked to the interface name
169 * "srvsvc", "\\PIPE\\ntsvcs"
170 * "samr", "\\PIPE\\lsass"
171 * "wkssvc", "\\PIPE\\wksvcs"
172 * "NETLOGON", "\\PIPE\\NETLOGON"
175 typedef struct rpc_addr_info
177 uint16 len; /* length of the string including null terminator */
178 fstring str; /* the string above in single byte, null terminated form */
183 typedef struct rpc_hdr_bba_info
185 uint16 max_tsize; /* maximum transmission fragment size (0x1630) */
186 uint16 max_rsize; /* max receive fragment size (0x1630) */
187 uint32 assoc_gid; /* associated group id (0x0) */
191 #define RPC_HDR_BBA_LEN 8
194 typedef struct rpc_hdr_autha_info
196 uint16 max_tsize; /* maximum transmission fragment size (0x1630) */
197 uint16 max_rsize; /* max receive fragment size (0x1630) */
199 uint8 auth_type; /* 0x0a */
200 uint8 auth_level; /* 0x06 */
201 uint8 stub_type_len; /* don't know */
202 uint8 padding; /* padding */
204 uint32 unknown; /* 0x0014a0c0 */
208 #define RPC_HDR_AUTHA_LEN 12
211 typedef struct rpc_hdr_auth_info
213 uint8 auth_type; /* 0x0a */
214 uint8 auth_level; /* 0x06 */
216 uint8 reserved; /* padding */
218 uint32 auth_context; /* pointer */
222 #define RPC_HDR_AUTH_LEN 8
224 /* this is TEMPORARILY coded up as a specific structure */
225 /* this structure comes after the bind request */
226 /* RPC_AUTH_NETSEC_NEG */
227 typedef struct rpc_auth_netsec_neg_info
229 uint32 type1; /* Always zero ? */
230 uint32 type2; /* Types 0x3 and 0x13 seen. Check AcquireSecurityContext() docs.... */
231 fstring domain; /* calling workstations's domain */
232 fstring myname; /* calling workstation's name */
233 } RPC_AUTH_NETSEC_NEG;
235 /* attached to the end of encrypted rpc requests and responses */
236 /* RPC_AUTH_NETSEC_CHK */
237 typedef struct rpc_auth_netsec_chk_info
239 uint8 sig [8]; /* 77 00 7a 00 ff ff 00 00 */
240 uint8 packet_digest[8]; /* checksum over the packet, MD5'ed with session key */
241 uint8 seq_num[8]; /* verifier, seq num */
242 uint8 data8[8]; /* random 8-byte nonce */
243 } RPC_AUTH_NETSEC_CHK;
245 struct netsec_auth_struct
251 /* RPC_BIND_REQ - ms req bind */
252 typedef struct rpc_bind_req_info
256 uint32 num_elements; /* the number of elements (0x1) */
257 uint16 context_id; /* presentation context identifier (0x0) */
258 uint8 num_syntaxes; /* the number of syntaxes (has always been 1?)(0x1) */
260 RPC_IFACE abstract; /* num and vers. of interface client is using */
261 RPC_IFACE transfer; /* num and vers. of interface to use for replies */
266 * The following length is 8 bytes RPC_HDR_BBA_LEN, 8 bytes internals
267 * (with 3 bytes padding), + 2 x RPC_IFACE_LEN bytes for RPC_IFACE structs.
270 #define RPC_HDR_RB_LEN (RPC_HDR_BBA_LEN + 8 + (2*RPC_IFACE_LEN))
272 /* RPC_RESULTS - can only cope with one reason, right now... */
273 typedef struct rpc_results_info
275 /* uint8[] # 4-byte alignment padding, against SMB header */
277 uint8 num_results; /* the number of results (0x01) */
279 /* uint8[] # 4-byte alignment padding, against SMB header */
281 uint16 result; /* result (0x00 = accept) */
282 uint16 reason; /* reason (0x00 = no reason specified) */
287 typedef struct rpc_hdr_ba_info
291 RPC_ADDR_STR addr ; /* the secondary address string, as described earlier */
292 RPC_RESULTS res ; /* results and reasons */
293 RPC_IFACE transfer; /* the transfer syntax from the request */
297 /* RPC_AUTH_VERIFIER */
298 typedef struct rpc_auth_verif_info
300 fstring signature; /* "NTLMSSP".. Ok, not quite anymore */
301 uint32 msg_type; /* NTLMSSP_MESSAGE_TYPE (1,2,3) and 5 for schannel */
305 /* this is TEMPORARILY coded up as a specific structure */
306 /* this structure comes after the bind request */
307 /* RPC_AUTH_NTLMSSP_NEG */
308 typedef struct rpc_auth_ntlmssp_neg_info
310 uint32 neg_flgs; /* 0x0000 b2b3 */
312 STRHDR hdr_myname; /* offset is against START of this structure */
313 STRHDR hdr_domain; /* offset is against START of this structure */
315 fstring myname; /* calling workstation's name */
316 fstring domain; /* calling workstations's domain */
318 } RPC_AUTH_NTLMSSP_NEG;
320 /* this is TEMPORARILY coded up as a specific structure */
321 /* this structure comes after the bind acknowledgement */
322 /* RPC_AUTH_NTLMSSP_CHAL */
323 typedef struct rpc_auth_ntlmssp_chal_info
325 uint32 unknown_1; /* 0x0000 0000 */
326 uint32 unknown_2; /* 0x0000 0028 */
327 uint32 neg_flags; /* 0x0000 82b1 */
329 uint8 challenge[8]; /* ntlm challenge */
330 uint8 reserved [8]; /* zeros */
332 } RPC_AUTH_NTLMSSP_CHAL;
335 /* RPC_AUTH_NTLMSSP_RESP */
336 typedef struct rpc_auth_ntlmssp_resp_info
338 STRHDR hdr_lm_resp; /* 24 byte response */
339 STRHDR hdr_nt_resp; /* 24 byte response */
343 STRHDR hdr_sess_key; /* NULL unless negotiated */
344 uint32 neg_flags; /* 0x0000 82b1 */
353 } RPC_AUTH_NTLMSSP_RESP;
355 /* attached to the end of encrypted rpc requests and responses */
356 /* RPC_AUTH_NTLMSSP_CHK */
357 typedef struct rpc_auth_ntlmssp_chk_info
359 uint32 ver; /* 0x0000 0001 */
361 uint32 crc32; /* checksum using 0xEDB8 8320 as a polynomial */
364 } RPC_AUTH_NTLMSSP_CHK;
366 #define RPC_AUTH_NTLMSSP_CHK_LEN 16
368 #endif /* _DCE_RPC_H */