source/include/rpc_dce.h

   1 /*
   2    Unix SMB/Netbios implementation.
   3    Version 1.9.
   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
   8
   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.
  13
  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.
  18
  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.
  22 */
  23
  24 #ifndef _DCE_RPC_H /* _DCE_RPC_H */
  25 #define _DCE_RPC_H
  26
  27 #include "rpc_misc.h" /* this only pulls in STRHDR */
  28
  29
  30 /* DCE/RPC packet types */
  31
  32 enum RPC_PKT_TYPE
  33 {
  34         RPC_REQUEST = 0x00,
  35         RPC_RESPONSE = 0x02,
  36         RPC_BIND     = 0x0B,
  37         RPC_BINDACK  = 0x0C,
  38         RPC_BINDRESP = 0x10 /* not the real name!  this is undocumented! */
  39 };
  40
  41 /* DCE/RPC flags */
  42 #define RPC_FLG_FIRST 0x01
  43 #define RPC_FLG_LAST  0x02
  44
  45 /* NTLMSSP message types */
  46 enum NTLM_MESSAGE_TYPE
  47 {
  48         NTLMSSP_NEGOTIATE = 1,
  49         NTLMSSP_CHALLENGE = 2,
  50         NTLMSSP_AUTH      = 3,
  51         NTLMSSP_UNKNOWN   = 4
  52 };
  53
  54 /* NTLMSSP negotiation flags */
  55 #define NTLMSSP_NEGOTIATE_UNICODE          0x00000001
  56 #define NTLMSSP_NEGOTIATE_OEM              0x00000002
  57 #define NTLMSSP_REQUEST_TARGET             0x00000004
  58 #define NTLMSSP_NEGOTIATE_SIGN             0x00000010
  59 #define NTLMSSP_NEGOTIATE_SEAL             0x00000020
  60 #define NTLMSSP_NEGOTIATE_LM_KEY           0x00000080
  61 #define NTLMSSP_NEGOTIATE_NTLM             0x00000200
  62 #define NTLMSSP_NEGOTIATE_00001000         0x00001000
  63 #define NTLMSSP_NEGOTIATE_00002000         0x00002000
  64 #define NTLMSSP_NEGOTIATE_ALWAYS_SIGN      0x00008000
  65 #define NTLMSSP_NEGOTIATE_NTLM2            0x00080000
  66 #define NTLMSSP_NEGOTIATE_TARGET_INFO      0x00800000
  67 #define NTLMSSP_NEGOTIATE_128              0x20000000
  68 #define NTLMSSP_NEGOTIATE_KEY_EXCH         0x40000000
  69
  70 /* NTLMSSP signature version */
  71 #define NTLMSSP_SIGN_VERSION 0x01
  72
  73
  74 /* RPC_IFACE */
  75 typedef struct rpc_iface_info
  76 {
  77   uint8 data[16];    /* 16 bytes of rpc interface identification */
  78   uint32 version;    /* the interface version number */
  79
  80 } RPC_IFACE;
  81
  82 struct pipe_id_info
  83 {
  84         /* the names appear not to matter: the syntaxes _do_ matter */
  85
  86         char *client_pipe;
  87         RPC_IFACE abstr_syntax; /* this one is the abstract syntax id */
  88
  89         char *server_pipe;  /* this one is the secondary syntax name */
  90         RPC_IFACE trans_syntax; /* this one is the primary syntax id */
  91 };
  92
  93 /* RPC_HDR - dce rpc header */
  94 typedef struct rpc_hdr_info
  95 {
  96   uint8  major; /* 5 - RPC major version */
  97   uint8  minor; /* 0 - RPC minor version */
  98   uint8  pkt_type; /* RPC_PKT_TYPE - RPC response packet */
  99   uint8  flags; /* DCE/RPC flags */
 100   uint32 pack_type; /* 0x1000 0000 - packed data representation */
 101   uint16 frag_len; /* fragment length - data size (bytes) inc header and tail. */
 102   uint16 auth_len; /* 0 - authentication length  */
 103   uint32 call_id; /* call identifier.  matches 12th uint32 of incoming RPC data. */
 104
 105 } RPC_HDR;
 106
 107 /* RPC_HDR_REQ - ms request rpc header */
 108 typedef struct rpc_hdr_req_info
 109 {
 110   uint32 alloc_hint;   /* allocation hint - data size (bytes) minus header and tail. */
 111   uint16 context_id;   /* 0 - presentation context identifier */
 112   uint16  opnum;        /* opnum */
 113
 114 } RPC_HDR_REQ;
 115
 116 /* RPC_HDR_RESP - ms response rpc header */
 117 typedef struct rpc_hdr_resp_info
 118 {
 119   uint32 alloc_hint;   /* allocation hint - data size (bytes) minus header and tail. */
 120   uint16 context_id;   /* 0 - presentation context identifier */
 121   uint8  cancel_count; /* 0 - cancel count */
 122   uint8  reserved;     /* 0 - reserved. */
 123
 124 } RPC_HDR_RESP;
 125
 126 /* this seems to be the same string name depending on the name of the pipe,
 127  * but is more likely to be linked to the interface name
 128  * "srvsvc", "\\PIPE\\ntsvcs"
 129  * "samr", "\\PIPE\\lsass"
 130  * "wkssvc", "\\PIPE\\wksvcs"
 131  * "NETLOGON", "\\PIPE\\NETLOGON"
 132  */
 133 /* RPC_ADDR_STR */
 134 typedef struct rpc_addr_info
 135 {
 136   uint16 len;   /* length of the string including null terminator */
 137   fstring str; /* the string above in single byte, null terminated form */
 138
 139 } RPC_ADDR_STR;
 140
 141 /* RPC_HDR_BBA */
 142 typedef struct rpc_hdr_bba_info
 143 {
 144   uint16 max_tsize;       /* maximum transmission fragment size (0x1630) */
 145   uint16 max_rsize;       /* max receive fragment size (0x1630) */
 146   uint32 assoc_gid;       /* associated group id (0x0) */
 147
 148 } RPC_HDR_BBA;
 149
 150 /* RPC_HDR_AUTHA */
 151 typedef struct rpc_hdr_autha_info
 152 {
 153         uint16 max_tsize;       /* maximum transmission fragment size (0x1630) */
 154         uint16 max_rsize;       /* max receive fragment size (0x1630) */
 155
 156         uint8 auth_type; /* 0x0a */
 157         uint8 auth_level; /* 0x06 */
 158         uint8 stub_type_len; /* don't know */
 159         uint8 padding; /* padding */
 160
 161         uint32 unknown; /* 0x0014a0c0 */
 162
 163 } RPC_HDR_AUTHA;
 164
 165 /* RPC_HDR_AUTH */
 166 typedef struct rpc_hdr_auth_info
 167 {
 168         uint8 auth_type; /* 0x0a */
 169         uint8 auth_level; /* 0x06 */
 170         uint8 stub_type_len; /* don't know */
 171         uint8 padding; /* padding */
 172
 173         uint32 unknown; /* pointer */
 174
 175 } RPC_HDR_AUTH;
 176
 177 /* RPC_BIND_REQ - ms req bind */
 178 typedef struct rpc_bind_req_info
 179 {
 180   RPC_HDR_BBA bba;
 181
 182   uint32 num_elements;    /* the number of elements (0x1) */
 183   uint16 context_id;      /* presentation context identifier (0x0) */
 184   uint8 num_syntaxes;     /* the number of syntaxes (has always been 1?)(0x1) */
 185
 186   RPC_IFACE abstract;     /* num and vers. of interface client is using */
 187   RPC_IFACE transfer;     /* num and vers. of interface to use for replies */
 188
 189 } RPC_HDR_RB;
 190
 191 /* RPC_RESULTS - can only cope with one reason, right now... */
 192 typedef struct rpc_results_info
 193 {
 194 /* uint8[] # 4-byte alignment padding, against SMB header */
 195
 196   uint8 num_results; /* the number of results (0x01) */
 197
 198 /* uint8[] # 4-byte alignment padding, against SMB header */
 199
 200   uint16 result; /* result (0x00 = accept) */
 201   uint16 reason; /* reason (0x00 = no reason specified) */
 202
 203 } RPC_RESULTS;
 204
 205 /* RPC_HDR_BA */
 206 typedef struct rpc_hdr_ba_info
 207 {
 208   RPC_HDR_BBA bba;
 209
 210   RPC_ADDR_STR addr    ;  /* the secondary address string, as described earlier */
 211   RPC_RESULTS  res     ; /* results and reasons */
 212   RPC_IFACE    transfer; /* the transfer syntax from the request */
 213
 214 } RPC_HDR_BA;
 215
 216 /* RPC_AUTH_VERIFIER */
 217 typedef struct rpc_auth_verif_info
 218 {
 219         fstring signature; /* "NTLMSSP" */
 220         uint32  msg_type; /* NTLMSSP_MESSAGE_TYPE (1,2,3) */
 221
 222 } RPC_AUTH_VERIFIER;
 223
 224 /* this is TEMPORARILY coded up as a specific structure */
 225 /* this structure comes after the bind request */
 226 /* RPC_AUTH_NTLMSSP_NEG */
 227 typedef struct rpc_auth_ntlmssp_neg_info
 228 {
 229         uint32  neg_flgs; /* 0x0000 b2b3 */
 230
 231         STRHDR hdr_myname; /* offset is against START of this structure */
 232         STRHDR hdr_domain; /* offset is against START of this structure */
 233
 234         fstring myname; /* calling workstation's name */
 235         fstring domain; /* calling workstations's domain */
 236
 237 } RPC_AUTH_NTLMSSP_NEG;
 238
 239 /* this is TEMPORARILY coded up as a specific structure */
 240 /* this structure comes after the bind acknowledgement */
 241 /* RPC_AUTH_NTLMSSP_CHAL */
 242 typedef struct rpc_auth_ntlmssp_chal_info
 243 {
 244         uint32 unknown_1; /* 0x0000 0000 */
 245         uint32 unknown_2; /* 0x0000 0028 */
 246         uint32 neg_flags; /* 0x0000 82b1 */
 247
 248         uint8 challenge[8]; /* ntlm challenge */
 249         uint8 reserved [8]; /* zeros */
 250
 251 } RPC_AUTH_NTLMSSP_CHAL;
 252
 253
 254 /* RPC_AUTH_NTLMSSP_RESP */
 255 typedef struct rpc_auth_ntlmssp_resp_info
 256 {
 257         STRHDR hdr_lm_resp; /* 24 byte response */
 258         STRHDR hdr_nt_resp; /* 24 byte response */
 259         STRHDR hdr_domain;
 260         STRHDR hdr_usr;
 261         STRHDR hdr_wks;
 262         STRHDR hdr_sess_key; /* NULL unless negotiated */
 263         uint32 neg_flags; /* 0x0000 82b1 */
 264
 265         fstring sess_key;
 266         fstring wks;
 267         fstring user;
 268         fstring domain;
 269         fstring nt_resp;
 270         fstring lm_resp;
 271
 272 } RPC_AUTH_NTLMSSP_RESP;
 273
 274
 275 /* attached to the end of encrypted rpc requests and responses */
 276 /* RPC_AUTH_NTLMSSP_CHK */
 277 typedef struct rpc_auth_ntlmssp_chk_info
 278 {
 279         uint32 ver; /* 0x0000 0001 */
 280         uint32 reserved;
 281         uint32 crc32; /* checksum using 0xEDB8 8320 as a polynomial */
 282         uint32 seq_num;
 283
 284 } RPC_AUTH_NTLMSSP_CHK;
 285
 286 #endif /* _DCE_RPC_H */
 287