source3/include/rpc_dce.h

   1 /*
   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
   7
   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.
  12
  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.
  17
  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.
  21 */
  22
  23 #ifndef _DCE_RPC_H /* _DCE_RPC_H */
  24 #define _DCE_RPC_H
  25
  26 #include "rpc_misc.h"  /* this only pulls in STRHDR */
  27
  28
  29 /* DCE/RPC packet types */
  30
  31 enum RPC_PKT_TYPE
  32 {
  33         RPC_REQUEST = 0x00,
  34         RPC_RESPONSE = 0x02,
  35         RPC_FAULT    = 0x03,
  36         RPC_BIND     = 0x0B,
  37         RPC_BINDACK  = 0x0C,
  38         RPC_BINDNACK = 0x0D,
  39         RPC_ALTCONT  = 0x0E,
  40         RPC_ALTCONTRESP = 0x0F,
  41         RPC_BINDRESP = 0x10 /* not the real name!  this is undocumented! */
  42 };
  43
  44 /* DCE/RPC flags */
  45 #define RPC_FLG_FIRST 0x01
  46 #define RPC_FLG_LAST  0x02
  47 #define RPC_FLG_NOCALL 0x20
  48
  49 /* NTLMSSP message types */
  50 enum NTLM_MESSAGE_TYPE
  51 {
  52         NTLMSSP_NEGOTIATE = 1,
  53         NTLMSSP_CHALLENGE = 2,
  54         NTLMSSP_AUTH      = 3,
  55         NTLMSSP_UNKNOWN   = 4
  56 };
  57
  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
  80
  81 #define SMBD_NTLMSSP_NEG_FLAGS 0x000082b1 /* ALWAYS_SIGN|NEG_NTLM|NEG_LM|NEG_SEAL|NEG_SIGN|NEG_UNICODE */
  82
  83 /* NTLMSSP signature version */
  84 #define NTLMSSP_SIGN_VERSION 0x01
  85
  86 /* NTLMSSP auth type and level. */
  87 #define NTLMSSP_AUTH_TYPE 0xa
  88 #define NTLMSSP_AUTH_LEVEL 0x6
  89
  90 /* Maximum PDU fragment size. */
  91 #define MAX_PDU_FRAG_LEN 0x1630
  92 /* #define MAX_PDU_FRAG_LEN 0x10b8              this is what w2k sets */
  93
  94 /*
  95  * Actual structure of a DCE UUID
  96  */
  97
  98 typedef struct rpc_uuid
  99 {
 100   uint32 time_low;
 101   uint16 time_mid;
 102   uint16 time_hi_and_version;
 103   uint8 remaining[8];
 104 } RPC_UUID;
 105
 106 #define RPC_UUID_LEN 16
 107
 108 /* RPC_IFACE */
 109 typedef struct rpc_iface_info
 110 {
 111   RPC_UUID uuid;    /* 16 bytes of rpc interface identification */
 112   uint32 version;    /* the interface version number */
 113
 114 } RPC_IFACE;
 115
 116 #define RPC_IFACE_LEN (RPC_UUID_LEN + 4)
 117
 118 struct pipe_id_info
 119 {
 120         /* the names appear not to matter: the syntaxes _do_ matter */
 121
 122         char *client_pipe;
 123         RPC_IFACE abstr_syntax; /* this one is the abstract syntax id */
 124
 125         char *server_pipe;  /* this one is the secondary syntax name */
 126         RPC_IFACE trans_syntax; /* this one is the primary syntax id */
 127 };
 128
 129 /* RPC_HDR - dce rpc header */
 130 typedef struct rpc_hdr_info
 131 {
 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. */
 140
 141 } RPC_HDR;
 142
 143 #define RPC_HEADER_LEN 16
 144
 145 /* RPC_HDR_REQ - ms request rpc header */
 146 typedef struct rpc_hdr_req_info
 147 {
 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 */
 151
 152 } RPC_HDR_REQ;
 153
 154 #define RPC_HDR_REQ_LEN 8
 155
 156 /* RPC_HDR_RESP - ms response rpc header */
 157 typedef struct rpc_hdr_resp_info
 158 {
 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. */
 163
 164 } RPC_HDR_RESP;
 165
 166 #define RPC_HDR_RESP_LEN 8
 167
 168 /* RPC_HDR_FAULT - fault rpc header */
 169 typedef struct rpc_hdr_fault_info
 170 {
 171   NTSTATUS status;
 172   uint32 reserved; /* 0x0000 0000 */
 173 } RPC_HDR_FAULT;
 174
 175 #define RPC_HDR_FAULT_LEN 8
 176
 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"
 183  */
 184 /* RPC_ADDR_STR */
 185 typedef struct rpc_addr_info
 186 {
 187   uint16 len;   /* length of the string including null terminator */
 188   fstring str; /* the string above in single byte, null terminated form */
 189
 190 } RPC_ADDR_STR;
 191
 192 /* RPC_HDR_BBA */
 193 typedef struct rpc_hdr_bba_info
 194 {
 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) */
 198
 199 } RPC_HDR_BBA;
 200
 201 #define RPC_HDR_BBA_LEN 8
 202
 203 /* RPC_HDR_AUTHA */
 204 typedef struct rpc_hdr_autha_info
 205 {
 206         uint16 max_tsize;       /* maximum transmission fragment size (0x1630) */
 207         uint16 max_rsize;       /* max receive fragment size (0x1630) */
 208
 209         uint8 auth_type; /* 0x0a */
 210         uint8 auth_level; /* 0x06 */
 211         uint8 stub_type_len; /* don't know */
 212         uint8 padding; /* padding */
 213
 214         uint32 unknown; /* 0x0014a0c0 */
 215
 216 } RPC_HDR_AUTHA;
 217
 218 #define RPC_HDR_AUTHA_LEN 12
 219
 220 /* RPC_HDR_AUTH */
 221 typedef struct rpc_hdr_auth_info
 222 {
 223         uint8 auth_type; /* 0x0a */
 224         uint8 auth_level; /* 0x06 */
 225         uint8 stub_type_len; /* don't know */
 226         uint8 padding; /* padding */
 227
 228         uint32 unknown; /* pointer */
 229
 230 } RPC_HDR_AUTH;
 231
 232 #define RPC_HDR_AUTH_LEN 8
 233
 234 /* RPC_BIND_REQ - ms req bind */
 235 typedef struct rpc_bind_req_info
 236 {
 237   RPC_HDR_BBA bba;
 238
 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) */
 242
 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 */
 245
 246 } RPC_HDR_RB;
 247
 248 /*
 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.
 251  */
 252
 253 #define RPC_HDR_RB_LEN (RPC_HDR_BBA_LEN + 8 + (2*RPC_IFACE_LEN))
 254
 255 /* RPC_RESULTS - can only cope with one reason, right now... */
 256 typedef struct rpc_results_info
 257 {
 258 /* uint8[] # 4-byte alignment padding, against SMB header */
 259
 260   uint8 num_results; /* the number of results (0x01) */
 261
 262 /* uint8[] # 4-byte alignment padding, against SMB header */
 263
 264   uint16 result; /* result (0x00 = accept) */
 265   uint16 reason; /* reason (0x00 = no reason specified) */
 266
 267 } RPC_RESULTS;
 268
 269 /* RPC_HDR_BA */
 270 typedef struct rpc_hdr_ba_info
 271 {
 272   RPC_HDR_BBA bba;
 273
 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 */
 277
 278 } RPC_HDR_BA;
 279
 280 /* RPC_AUTH_VERIFIER */
 281 typedef struct rpc_auth_verif_info
 282 {
 283         fstring signature; /* "NTLMSSP" */
 284         uint32  msg_type; /* NTLMSSP_MESSAGE_TYPE (1,2,3) */
 285
 286 } RPC_AUTH_VERIFIER;
 287
 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
 292 {
 293         uint32  neg_flgs; /* 0x0000 b2b3 */
 294
 295         STRHDR hdr_myname; /* offset is against START of this structure */
 296         STRHDR hdr_domain; /* offset is against START of this structure */
 297
 298         fstring myname; /* calling workstation's name */
 299         fstring domain; /* calling workstations's domain */
 300
 301 } RPC_AUTH_NTLMSSP_NEG;
 302
 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
 307 {
 308         uint32 unknown_1; /* 0x0000 0000 */
 309         uint32 unknown_2; /* 0x0000 0028 */
 310         uint32 neg_flags; /* 0x0000 82b1 */
 311
 312         uint8 challenge[8]; /* ntlm challenge */
 313         uint8 reserved [8]; /* zeros */
 314
 315 } RPC_AUTH_NTLMSSP_CHAL;
 316
 317
 318 /* RPC_AUTH_NTLMSSP_RESP */
 319 typedef struct rpc_auth_ntlmssp_resp_info
 320 {
 321         STRHDR hdr_lm_resp; /* 24 byte response */
 322         STRHDR hdr_nt_resp; /* 24 byte response */
 323         STRHDR hdr_domain;
 324         STRHDR hdr_usr;
 325         STRHDR hdr_wks;
 326         STRHDR hdr_sess_key; /* NULL unless negotiated */
 327         uint32 neg_flags; /* 0x0000 82b1 */
 328
 329         fstring sess_key;
 330         fstring wks;
 331         fstring user;
 332         fstring domain;
 333         fstring nt_resp;
 334         fstring lm_resp;
 335
 336 } RPC_AUTH_NTLMSSP_RESP;
 337
 338 /* attached to the end of encrypted rpc requests and responses */
 339 /* RPC_AUTH_NTLMSSP_CHK */
 340 typedef struct rpc_auth_ntlmssp_chk_info
 341 {
 342         uint32 ver; /* 0x0000 0001 */
 343         uint32 reserved;
 344         uint32 crc32; /* checksum using 0xEDB8 8320 as a polynomial */
 345         uint32 seq_num;
 346
 347 } RPC_AUTH_NTLMSSP_CHK;
 348
 349 #define RPC_AUTH_NTLMSSP_CHK_LEN 16
 350
 351
 352 #endif /* _DCE_RPC_H */