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 and level. */
55 #define NTLMSSP_AUTH_TYPE 0xa
56 #define NTLMSSP_AUTH_LEVEL 0x6
58 /* Netlogon schannel auth type and level */
59 #define NETSEC_AUTH_TYPE 0x44
60 #define NETSEC_AUTH_LEVEL 0x6
61 #define NETSEC_SIGNATURE { 0x77, 0x00, 0x7a, 0x00, 0xff, 0xff, 0x00, 0x00 }
62 #define RPC_AUTH_NETSEC_CHK_LEN 0x20
63 #define NETLOGON_NEG_SCHANNEL 0x40000000
65 /* Maximum PDU fragment size. */
66 #define MAX_PDU_FRAG_LEN 0x1630
67 /* #define MAX_PDU_FRAG_LEN 0x10b8 this is what w2k sets */
70 * Actual structure of a DCE UUID
73 typedef struct rpc_uuid
77 uint16 time_hi_and_version;
81 #define RPC_UUID_LEN 16
84 typedef struct rpc_iface_info
86 RPC_UUID uuid; /* 16 bytes of rpc interface identification */
87 uint32 version; /* the interface version number */
91 #define RPC_IFACE_LEN (RPC_UUID_LEN + 4)
95 /* the names appear not to matter: the syntaxes _do_ matter */
97 const char *client_pipe;
98 RPC_IFACE abstr_syntax; /* this one is the abstract syntax id */
100 const char *server_pipe; /* this one is the secondary syntax name */
101 RPC_IFACE trans_syntax; /* this one is the primary syntax id */
104 /* RPC_HDR - dce rpc header */
105 typedef struct rpc_hdr_info
107 uint8 major; /* 5 - RPC major version */
108 uint8 minor; /* 0 - RPC minor version */
109 uint8 pkt_type; /* RPC_PKT_TYPE - RPC response packet */
110 uint8 flags; /* DCE/RPC flags */
111 uint8 pack_type[4]; /* 0x1000 0000 - little-endian packed data representation */
112 uint16 frag_len; /* fragment length - data size (bytes) inc header and tail. */
113 uint16 auth_len; /* 0 - authentication length */
114 uint32 call_id; /* call identifier. matches 12th uint32 of incoming RPC data. */
118 #define RPC_HEADER_LEN 16
120 /* RPC_HDR_REQ - ms request rpc header */
121 typedef struct rpc_hdr_req_info
123 uint32 alloc_hint; /* allocation hint - data size (bytes) minus header and tail. */
124 uint16 context_id; /* 0 - presentation context identifier */
125 uint16 opnum; /* opnum */
129 #define RPC_HDR_REQ_LEN 8
131 /* RPC_HDR_RESP - ms response rpc header */
132 typedef struct rpc_hdr_resp_info
134 uint32 alloc_hint; /* allocation hint - data size (bytes) minus header and tail. */
135 uint16 context_id; /* 0 - presentation context identifier */
136 uint8 cancel_count; /* 0 - cancel count */
137 uint8 reserved; /* 0 - reserved. */
141 #define RPC_HDR_RESP_LEN 8
143 /* RPC_HDR_FAULT - fault rpc header */
144 typedef struct rpc_hdr_fault_info
147 uint32 reserved; /* 0x0000 0000 */
150 #define RPC_HDR_FAULT_LEN 8
152 /* this seems to be the same string name depending on the name of the pipe,
153 * but is more likely to be linked to the interface name
154 * "srvsvc", "\\PIPE\\ntsvcs"
155 * "samr", "\\PIPE\\lsass"
156 * "wkssvc", "\\PIPE\\wksvcs"
157 * "NETLOGON", "\\PIPE\\NETLOGON"
160 typedef struct rpc_addr_info
162 uint16 len; /* length of the string including null terminator */
163 fstring str; /* the string above in single byte, null terminated form */
168 typedef struct rpc_hdr_bba_info
170 uint16 max_tsize; /* maximum transmission fragment size (0x1630) */
171 uint16 max_rsize; /* max receive fragment size (0x1630) */
172 uint32 assoc_gid; /* associated group id (0x0) */
176 #define RPC_HDR_BBA_LEN 8
179 typedef struct rpc_hdr_autha_info
181 uint16 max_tsize; /* maximum transmission fragment size (0x1630) */
182 uint16 max_rsize; /* max receive fragment size (0x1630) */
184 uint8 auth_type; /* 0x0a */
185 uint8 auth_level; /* 0x06 */
186 uint8 stub_type_len; /* don't know */
187 uint8 padding; /* padding */
189 uint32 unknown; /* 0x0014a0c0 */
193 #define RPC_HDR_AUTHA_LEN 12
196 typedef struct rpc_hdr_auth_info
198 uint8 auth_type; /* 0x0a */
199 uint8 auth_level; /* 0x06 */
201 uint8 reserved; /* padding */
203 uint32 auth_context; /* pointer */
207 #define RPC_HDR_AUTH_LEN 8
209 /* this is TEMPORARILY coded up as a specific structure */
210 /* this structure comes after the bind request */
211 /* RPC_AUTH_NETSEC_NEG */
212 typedef struct rpc_auth_netsec_neg_info
216 fstring domain; /* calling workstations's domain */
217 fstring myname; /* calling workstation's name */
218 } RPC_AUTH_NETSEC_NEG;
220 /* attached to the end of encrypted rpc requests and responses */
221 /* RPC_AUTH_NETSEC_CHK */
222 typedef struct rpc_auth_netsec_chk_info
224 uint8 sig [8]; /* 77 00 7a 00 ff ff 00 00 */
226 uint8 data3[8]; /* verifier, seq num */
227 uint8 data8[8]; /* random 8-byte nonce */
228 } RPC_AUTH_NETSEC_CHK;
230 struct netsec_auth_struct
236 /* RPC_BIND_REQ - ms req bind */
237 typedef struct rpc_bind_req_info
241 uint32 num_elements; /* the number of elements (0x1) */
242 uint16 context_id; /* presentation context identifier (0x0) */
243 uint8 num_syntaxes; /* the number of syntaxes (has always been 1?)(0x1) */
245 RPC_IFACE abstract; /* num and vers. of interface client is using */
246 RPC_IFACE transfer; /* num and vers. of interface to use for replies */
251 * The following length is 8 bytes RPC_HDR_BBA_LEN, 8 bytes internals
252 * (with 3 bytes padding), + 2 x RPC_IFACE_LEN bytes for RPC_IFACE structs.
255 #define RPC_HDR_RB_LEN (RPC_HDR_BBA_LEN + 8 + (2*RPC_IFACE_LEN))
257 /* RPC_RESULTS - can only cope with one reason, right now... */
258 typedef struct rpc_results_info
260 /* uint8[] # 4-byte alignment padding, against SMB header */
262 uint8 num_results; /* the number of results (0x01) */
264 /* uint8[] # 4-byte alignment padding, against SMB header */
266 uint16 result; /* result (0x00 = accept) */
267 uint16 reason; /* reason (0x00 = no reason specified) */
272 typedef struct rpc_hdr_ba_info
276 RPC_ADDR_STR addr ; /* the secondary address string, as described earlier */
277 RPC_RESULTS res ; /* results and reasons */
278 RPC_IFACE transfer; /* the transfer syntax from the request */
282 /* RPC_AUTH_VERIFIER */
283 typedef struct rpc_auth_verif_info
285 fstring signature; /* "NTLMSSP".. Ok, not quite anymore */
286 uint32 msg_type; /* NTLMSSP_MESSAGE_TYPE (1,2,3) and 5 for schannel */
290 /* this is TEMPORARILY coded up as a specific structure */
291 /* this structure comes after the bind request */
292 /* RPC_AUTH_NTLMSSP_NEG */
293 typedef struct rpc_auth_ntlmssp_neg_info
295 uint32 neg_flgs; /* 0x0000 b2b3 */
297 STRHDR hdr_myname; /* offset is against START of this structure */
298 STRHDR hdr_domain; /* offset is against START of this structure */
300 fstring myname; /* calling workstation's name */
301 fstring domain; /* calling workstations's domain */
303 } RPC_AUTH_NTLMSSP_NEG;
305 /* this is TEMPORARILY coded up as a specific structure */
306 /* this structure comes after the bind acknowledgement */
307 /* RPC_AUTH_NTLMSSP_CHAL */
308 typedef struct rpc_auth_ntlmssp_chal_info
310 uint32 unknown_1; /* 0x0000 0000 */
311 uint32 unknown_2; /* 0x0000 0028 */
312 uint32 neg_flags; /* 0x0000 82b1 */
314 uint8 challenge[8]; /* ntlm challenge */
315 uint8 reserved [8]; /* zeros */
317 } RPC_AUTH_NTLMSSP_CHAL;
320 /* RPC_AUTH_NTLMSSP_RESP */
321 typedef struct rpc_auth_ntlmssp_resp_info
323 STRHDR hdr_lm_resp; /* 24 byte response */
324 STRHDR hdr_nt_resp; /* 24 byte response */
328 STRHDR hdr_sess_key; /* NULL unless negotiated */
329 uint32 neg_flags; /* 0x0000 82b1 */
338 } RPC_AUTH_NTLMSSP_RESP;
340 /* attached to the end of encrypted rpc requests and responses */
341 /* RPC_AUTH_NTLMSSP_CHK */
342 typedef struct rpc_auth_ntlmssp_chk_info
344 uint32 ver; /* 0x0000 0001 */
346 uint32 crc32; /* checksum using 0xEDB8 8320 as a polynomial */
349 } RPC_AUTH_NTLMSSP_CHK;
351 #define RPC_AUTH_NTLMSSP_CHK_LEN 16
354 #endif /* _DCE_RPC_H */