librpc/idl/dcerpc.idl

   1 #include "idl_types.h"
   2
   3 /*
   4   the base dcerpc packet definitions - not traditionally coded as IDL,
   5   but given that pidl can handle it nicely it simplifies things a lot
   6   to do it this way
   7
   8   See [C706 - DCE 1.1: Remote Procedure Call] for the OpenGroup
   9   DCERPC specification:
  10   http://pubs.opengroup.org/onlinepubs/9629399/toc.htm
  11
  12   See C706 - Chapter 12: RPC PDU Encodings for packet layouts:
  13   http://www.opengroup.org/onlinepubs/9629399/chap12.htm
  14
  15   See also [MS-RPCE] for the Microsoft
  16   "Remote Procedure Call Protocol Extensions".
  17   http://msdn.microsoft.com/en-us/library/cc243560.aspx
  18
  19 */
  20 import "misc.idl";
  21
  22 cpp_quote("extern const uint8_t DCERPC_SEC_VT_MAGIC[8];")
  23
  24 interface dcerpc
  25 {
  26         typedef struct {
  27                 uint16 context_id;
  28                 uint8 num_transfer_syntaxes;
  29                 ndr_syntax_id abstract_syntax;
  30                 ndr_syntax_id transfer_syntaxes[num_transfer_syntaxes];
  31         } dcerpc_ctx_list;
  32
  33         typedef [public] struct {
  34                 uint16 max_xmit_frag;
  35                 uint16 max_recv_frag;
  36                 uint32 assoc_group_id;
  37                 uint8  num_contexts;
  38                 dcerpc_ctx_list ctx_list[num_contexts];
  39                 [flag(NDR_REMAINING)] DATA_BLOB auth_info;
  40         } dcerpc_bind;
  41
  42         const uint8 DCERPC_REQUEST_LENGTH = 24;
  43
  44         typedef struct {
  45         } dcerpc_empty;
  46
  47         typedef [nodiscriminant] union {
  48                 [default] dcerpc_empty empty;
  49                 [case(LIBNDR_FLAG_OBJECT_PRESENT)] GUID object;
  50         } dcerpc_object;
  51
  52         typedef struct {
  53                 uint32 alloc_hint;
  54                 uint16 context_id;
  55                 uint16 opnum;
  56                 [switch_is(ndr->flags & LIBNDR_FLAG_OBJECT_PRESENT)] dcerpc_object object;
  57                 [flag(NDR_ALIGN8)]    DATA_BLOB _pad;
  58                 [flag(NDR_REMAINING)] DATA_BLOB stub_and_verifier;
  59         } dcerpc_request;
  60
  61         const int DCERPC_BIND_REASON_ASYNTAX                 = 1;
  62         const int DCERPC_BIND_PROVIDER_REJECT                = 2;
  63         const int DECRPC_BIND_PROTOCOL_VERSION_NOT_SUPPORTED = 4;
  64         const int DCERPC_BIND_REASON_INVALID_AUTH_TYPE       = 8;
  65
  66         typedef struct {
  67                 uint16 result;
  68                 uint16 reason;
  69                 ndr_syntax_id syntax;
  70         } dcerpc_ack_ctx;
  71
  72         typedef struct {
  73                 uint16 max_xmit_frag;
  74                 uint16 max_recv_frag;
  75                 uint32 assoc_group_id;
  76                 [value(strlen(secondary_address)+1)] uint16 secondary_address_size;
  77                 [charset(DOS)] uint8 secondary_address[secondary_address_size];
  78                 [flag(NDR_ALIGN4)]    DATA_BLOB _pad1;
  79                 uint8 num_results;
  80                 dcerpc_ack_ctx ctx_list[num_results];
  81                 [flag(NDR_REMAINING)] DATA_BLOB auth_info;
  82         } dcerpc_bind_ack;
  83
  84         typedef struct {
  85                 uint32 num_versions;
  86                 uint32 versions[num_versions];
  87         } dcerpc_bind_nak_versions;
  88
  89         typedef [nodiscriminant] union {
  90                 [case(DECRPC_BIND_PROTOCOL_VERSION_NOT_SUPPORTED)] dcerpc_bind_nak_versions v;
  91                 [default] ;
  92         } dcerpc_bind_nak_versions_ctr;
  93
  94         typedef struct {
  95                 uint16 reject_reason;
  96                 [switch_is(reject_reason)] dcerpc_bind_nak_versions_ctr versions;
  97         } dcerpc_bind_nak;
  98
  99         const uint8 DCERPC_RESPONSE_LENGTH = 24;
 100
 101         typedef struct {
 102                 uint32 alloc_hint;
 103                 uint16 context_id;
 104                 uint8 cancel_count;
 105                 [flag(NDR_ALIGN8)]    DATA_BLOB _pad;
 106                 [flag(NDR_REMAINING)] DATA_BLOB stub_and_verifier;
 107         } dcerpc_response;
 108
 109         typedef [v1_enum] enum {
 110                 DCERPC_NCA_S_COMM_FAILURE               = 0x1C010001,
 111                 DCERPC_NCA_S_OP_RNG_ERROR               = 0x1C010002,
 112                 DCERPC_NCA_S_UNKNOWN_IF                 = 0x1C010003,
 113                 DCERPC_NCA_S_WRONG_BOOT_TIME            = 0x1C010006,
 114                 DCERPC_NCA_S_YOU_CRASHED                = 0x1C010009,
 115                 DCERPC_NCA_S_PROTO_ERROR                = 0x1C01000B,
 116                 DCERPC_NCA_S_OUT_ARGS_TOO_BIG           = 0x1C010013,
 117                 DCERPC_NCA_S_SERVER_TOO_BUSY            = 0x1C010014,
 118                 DCERPC_NCA_S_FAULT_STRING_TOO_LARGE     = 0x1C010015,
 119                 DCERPC_NCA_S_UNSUPPORTED_TYPE           = 0x1C010017,
 120                 DCERPC_NCA_S_FAULT_INT_DIV_BY_ZERO      = 0x1C000001,
 121                 DCERPC_NCA_S_FAULT_ADDR_ERROR           = 0x1C000002,
 122                 DCERPC_NCA_S_FAULT_FP_DIV_BY_ZERO       = 0x1C000003,
 123                 DCERPC_NCA_S_FAULT_FP_UNDERFLOW         = 0x1C000004,
 124                 DCERPC_NCA_S_FAULT_FP_OVERRFLOW         = 0x1C000005,
 125                 DCERPC_NCA_S_FAULT_INVALID_TAG          = 0x1C000006,
 126                 DCERPC_NCA_S_FAULT_INVALID_BOUND        = 0x1C000007,
 127                 DCERPC_NCA_S_FAULT_RPC_VERSION_MISMATCH = 0x1C000008,
 128                 DCERPC_NCA_S_FAULT_UNSPEC_REJECT        = 0x1C000009,
 129                 DCERPC_NCA_S_FAULT_BAD_ACTID            = 0x1C00000A,
 130                 DCERPC_NCA_S_FAULT_WHO_ARE_YOU_FAILED   = 0x1C00000B,
 131                 DCERPC_NCA_S_FAULT_MANAGER_NOT_ENTERED  = 0x1C00000C,
 132                 DCERPC_NCA_S_FAULT_CANCEL               = 0x1C00000D,
 133                 DCERPC_NCA_S_FAULT_ILL_INST             = 0x1C00000E,
 134                 DCERPC_NCA_S_FAULT_FP_ERROR             = 0x1C00000F,
 135                 DCERPC_NCA_S_FAULT_INT_OVERFLOW         = 0x1C000010,
 136                 DCERPC_NCA_S_UNUSED_1C000011            = 0x1C000011,
 137                 DCERPC_NCA_S_FAULT_UNSPEC               = 0x1C000012,
 138                 DCERPC_NCA_S_FAULT_REMOTE_COMM_FAILURE  = 0x1C000013,
 139                 DCERPC_NCA_S_FAULT_PIPE_EMPTY           = 0x1C000014,
 140                 DCERPC_NCA_S_FAULT_PIPE_CLOSED          = 0x1C000015,
 141                 DCERPC_NCA_S_FAULT_PIPE_ORDER           = 0x1C000016,
 142                 DCERPC_NCA_S_FAULT_PIPE_DISCIPLINE      = 0x1C000017,
 143                 DCERPC_NCA_S_FAULT_PIPE_COMM_ERROR      = 0x1C000018,
 144                 DCERPC_NCA_S_FAULT_PIPE_MEMORY          = 0x1C000019,
 145                 DCERPC_NCA_S_FAULT_CONTEXT_MISMATCH     = 0x1C00001A,
 146                 DCERPC_NCA_S_FAULT_REMOTE_NO_MEMORY     = 0x1C00001B,
 147                 DCERPC_NCA_S_INVALID_PRES_CONTEXT_ID    = 0x1C00001C,
 148                 DCERPC_NCA_S_UNSUPPORTED_AUTHN_LEVEL    = 0x1C00001D,
 149                 DCERPC_NCA_S_UNUSED_1C00001E            = 0x1C00001E,
 150                 DCERPC_NCA_S_INVALID_CHECKSUM           = 0x1C00001F,
 151                 DCERPC_NCA_S_INVALID_CRC                = 0x1C000020,
 152                 DCERPC_NCA_S_FAULT_USER_DEFINED         = 0x1C000021,
 153                 DCERPC_NCA_S_FAULT_TX_OPEN_FAILED       = 0x1C000022,
 154                 DCERPC_NCA_S_FAULT_CODESET_CONV_ERROR   = 0x1C000023,
 155                 DCERPC_NCA_S_FAULT_OBJECT_NOT_FOUND     = 0x1C000024,
 156                 DCERPC_NCA_S_FAULT_NO_CLIENT_STUB       = 0x1C000025
 157         } dcerpc_nca_status;
 158
 159         const int DCERPC_FAULT_OP_RNG_ERROR       = 0x1c010002;
 160         const int DCERPC_FAULT_UNK_IF             = 0x1c010003;
 161         const int DCERPC_FAULT_NDR                = 0x000006f7;
 162         const int DCERPC_FAULT_INVALID_TAG        = 0x1c000006;
 163         const int DCERPC_FAULT_CONTEXT_MISMATCH   = 0x1c00001a;
 164         const int DCERPC_FAULT_OTHER              = 0x00000001;
 165         const int DCERPC_FAULT_ACCESS_DENIED      = 0x00000005;
 166         const int DCERPC_FAULT_CANT_PERFORM       = 0x000006d8;
 167         const int DCERPC_FAULT_SEC_PKG_ERROR      = 0x00000721;
 168
 169         /* we return this fault when we haven't yet run the test
 170            to see what fault w2k3 returns in this case */
 171         const int DCERPC_FAULT_TODO         = 0x00000042;
 172
 173         typedef struct {
 174                 uint32 alloc_hint;
 175                 uint16 context_id;
 176                 uint8 cancel_count;
 177                 dcerpc_nca_status status;
 178                 [flag(NDR_REMAINING)] DATA_BLOB _pad;
 179         } dcerpc_fault;
 180
 181         /* the auth types we know about */
 182         typedef [enum8bit] enum {
 183                 DCERPC_AUTH_TYPE_NONE     = 0,
 184                 /* this seems to be not krb5! */
 185                 DCERPC_AUTH_TYPE_KRB5_1   = 1,
 186                 DCERPC_AUTH_TYPE_SPNEGO   = 9,
 187                 DCERPC_AUTH_TYPE_NTLMSSP  = 10,
 188                 DCERPC_AUTH_TYPE_KRB5     = 16,
 189                 DCERPC_AUTH_TYPE_DPA      = 17,
 190                 DCERPC_AUTH_TYPE_MSN      = 18,
 191                 DCERPC_AUTH_TYPE_DIGEST   = 21,
 192                 DCERPC_AUTH_TYPE_SCHANNEL = 68,
 193                 DCERPC_AUTH_TYPE_MSMQ     = 100,
 194                 DCERPC_AUTH_TYPE_NCALRPC_AS_SYSTEM = 200
 195         } dcerpc_AuthType;
 196
 197         typedef [enum8bit] enum {
 198                 DCERPC_AUTH_LEVEL_NONE      = 1,
 199                 DCERPC_AUTH_LEVEL_CONNECT   = 2,
 200                 DCERPC_AUTH_LEVEL_CALL      = 3,
 201                 DCERPC_AUTH_LEVEL_PACKET    = 4,
 202                 DCERPC_AUTH_LEVEL_INTEGRITY = 5,
 203                 DCERPC_AUTH_LEVEL_PRIVACY   = 6
 204         } dcerpc_AuthLevel;
 205
 206         const uint8 DCERPC_AUTH_LEVEL_DEFAULT   = DCERPC_AUTH_LEVEL_CONNECT;
 207
 208         typedef [public] struct {
 209                 dcerpc_AuthType auth_type;
 210                 dcerpc_AuthLevel auth_level;
 211                 uint8  auth_pad_length;
 212                 uint8  auth_reserved;
 213                 uint32 auth_context_id;
 214                 [flag(NDR_REMAINING)] DATA_BLOB credentials;
 215         } dcerpc_auth;
 216
 217         const uint8 DCERPC_AUTH_TRAILER_LENGTH = 8;
 218
 219         typedef [public] struct {
 220                 [value(0)]            uint32    _pad;
 221                 [flag(NDR_REMAINING)] DATA_BLOB auth_info;
 222         } dcerpc_auth3;
 223
 224         typedef [public] struct {
 225                 [value(0)]            uint32    _pad;
 226                 [flag(NDR_REMAINING)] DATA_BLOB auth_info;
 227         } dcerpc_orphaned;
 228
 229         typedef [public] struct {
 230                 [value(0)]            uint32    _pad;
 231                 [flag(NDR_REMAINING)] DATA_BLOB auth_info;
 232         } dcerpc_co_cancel;
 233
 234         typedef [public] struct {
 235                 uint32 version;
 236                 uint32 id;
 237         } dcerpc_cl_cancel;
 238
 239         typedef [public] struct {
 240                 uint32 version;
 241                 uint32 id;
 242                 boolean32 server_is_accepting;
 243         } dcerpc_cancel_ack;
 244
 245         typedef [public] struct {
 246                 uint32 version;
 247                 uint8 _pad1;
 248                 uint16 window_size;
 249                 uint32 max_tdsu;
 250                 uint32 max_frag_size;
 251                 uint16 serial_no;
 252                 uint16 selack_size;
 253                 uint32 selack[selack_size];
 254         } dcerpc_fack;
 255
 256         typedef [public] struct {
 257         } dcerpc_ack;
 258
 259         typedef [public] struct {
 260         } dcerpc_ping;
 261
 262         typedef [public] struct {
 263         } dcerpc_shutdown;
 264
 265         typedef [public] struct {
 266         } dcerpc_working;
 267
 268         /* RTS data structures */
 269         typedef [public] struct {
 270                 GUID            Cookie;
 271         } RTSCookie;
 272
 273         typedef [v1_enum,public] enum {
 274                 RTS_IPV4        = 0,
 275                 RTS_IPV6        = 1
 276         } AddressType;
 277
 278         typedef [nodiscriminant] union {
 279                 [case(RTS_IPV4)] ipv4address    ClientAddressIPV4;
 280                 [case(RTS_IPV6)] ipv6address    ClientAddressIPV6;
 281         } ClientAddressType;
 282
 283         typedef [public] struct {
 284                 AddressType                                     AddressType;
 285                 [switch_is(AddressType)] ClientAddressType      ClientAddress;
 286                 uint8                                           Padding[12];
 287         } ClientAddress;
 288
 289         typedef [v1_enum, public] enum {
 290                 FDClient        = 0,
 291                 FDInProxy       = 1,
 292                 FDServer        = 2,
 293                 FDOutProxy      = 3
 294         } ForwardDestination;
 295
 296         typedef [public] struct {
 297                 uint32          BytesReceived;
 298                 uint32          AvailableWindow;
 299                 RTSCookie       ChannelCookie;
 300         } FlowControlAcknowledgment;
 301
 302         /* RTS commands */
 303
 304         /* RTS command: 0x0 */
 305         typedef [public] struct {
 306                 [range(0x2000,0x40000)] uint32  ReceiveWindowSize;
 307         } dcerpc_rts_cmd_ReceiveWindowSize;
 308
 309         /* RTS command: 0x1 */
 310         typedef [public] struct {
 311                 FlowControlAcknowledgment       Ack;
 312         } dcerpc_rts_cmd_FlowControlAck;
 313
 314         /* RTS command: 0x2 */
 315         typedef [public] struct {
 316                 [range(0x1D4C0,0xDBBA00)] uint32        ConnectionTimeout;
 317         } dcerpc_rts_cmd_ConnectionTimeout;
 318
 319         /* RTS command: 0x3 */
 320         typedef [public] struct {
 321                 RTSCookie       Cookie;
 322         } dcerpc_rts_cmd_Cookie;
 323
 324         /* RTS command: 0x4 */
 325         typedef [public] struct {
 326                 [range(0x20000,0x80000000)] uint32      ChannelLifetime;
 327         } dcerpc_rts_cmd_ChannelLifetime;
 328
 329         /* RTS command: 0x5 */
 330         typedef [public] struct {
 331                 uint32          ClientKeepalive;
 332         } dcerpc_rts_cmd_ClientKeepalive;
 333
 334         /* RTS command: 0x6 */
 335         typedef [public] struct {
 336                 uint32          Version;
 337         } dcerpc_rts_cmd_Version;
 338
 339         /* RTS command: 0x7 */
 340         typedef [public] struct {
 341         } dcerpc_rts_cmd_Empty;
 342
 343         /* RTS command: 0x8 */
 344         typedef [public] struct {
 345                 [range(0x0,0xFFFF)] uint32      ConformanceCount;
 346                 uint8                           Padding[ConformanceCount];
 347         } dcerpc_rts_cmd_Padding;
 348
 349         /* RTS command: 0x9 */
 350         typedef [public] struct {
 351         } dcerpc_rts_cmd_NegativeANCE;
 352
 353         /* RTS Command: 0xA */
 354         typedef [public] struct {
 355         } dcerpc_rts_cmd_ANCE;
 356
 357         /* RTS command: 0xB */
 358         typedef [public] struct {
 359                 ClientAddress   ClientAddress;
 360         } dcerpc_rts_cmd_ClientAddress;
 361
 362         /* RTS command: 0xC */
 363         typedef [public] struct {
 364                 RTSCookie       AssociationGroupId;
 365         } dcerpc_rts_cmd_AssociationGroupId;
 366
 367         /* RTS command: 0xD */
 368         typedef [public] struct {
 369                 ForwardDestination      ForwardDestination;
 370         } dcerpc_rts_cmd_Destination;
 371
 372         /* RTS command: 0xE */
 373         typedef [public] struct {
 374                 uint32  PingTrafficSent;
 375         } dcerpc_rts_cmd_PingTrafficSentNotify;
 376
 377         typedef [nodiscriminant] union {
 378                 [case(0x0)] dcerpc_rts_cmd_ReceiveWindowSize            ReceiveWindowSize;
 379                 [case(0x1)] dcerpc_rts_cmd_FlowControlAck               FlowControlAck;
 380                 [case(0x2)] dcerpc_rts_cmd_ConnectionTimeout            ConnectionTimeout;
 381                 [case(0x3)] dcerpc_rts_cmd_Cookie                       Cookie;
 382                 [case(0x4)] dcerpc_rts_cmd_ChannelLifetime              ChannelLifetime;
 383                 [case(0x5)] dcerpc_rts_cmd_ClientKeepalive              ClientKeepalive;
 384                 [case(0x6)] dcerpc_rts_cmd_Version                      Version;
 385                 [case(0x7)] dcerpc_rts_cmd_Empty                        Empty;
 386                 [case(0x8)] dcerpc_rts_cmd_Padding                      Padding;
 387                 [case(0x9)] dcerpc_rts_cmd_NegativeANCE                 NegativeANCE;
 388                 [case(0xA)] dcerpc_rts_cmd_ANCE                         ANCE;
 389                 [case(0xB)] dcerpc_rts_cmd_ClientAddress                ClientAddress;
 390                 [case(0xC)] dcerpc_rts_cmd_AssociationGroupId           AssociationGroupId;
 391                 [case(0xD)] dcerpc_rts_cmd_Destination                  Destination;
 392                 [case(0xE)] dcerpc_rts_cmd_PingTrafficSentNotify        PingTrafficSentNotify;
 393         } dcerpc_rts_cmds;
 394
 395         typedef [public] struct {
 396                 uint32                                          CommandType;
 397                 [switch_is(CommandType)] dcerpc_rts_cmds        Command;
 398         } dcerpc_rts_cmd;
 399
 400         /* The RTS flags */
 401         typedef [public, bitmap16bit] bitmap {
 402                 RTS_FLAG_NONE                   =       0x0000,
 403                 RTS_FLAG_PING                   =       0x0001,
 404                 RTS_FLAG_OTHER_CMD              =       0x0002,
 405                 RTS_FLAG_RECYCLE_CHANNEL        =       0x0004,
 406                 RTS_FLAG_IN_CHANNEL             =       0x0008,
 407                 RTS_FLAG_OUT_CHANNEL            =       0x0010,
 408                 RTS_FLAG_EOF                    =       0x0020,
 409                 RTS_FLAG_ECHO                   =       0x0040
 410         } dcerpc_rts_flags;
 411
 412         typedef [public] struct {
 413                 dcerpc_rts_flags        Flags;
 414                 uint16                  NumberOfCommands;
 415                 dcerpc_rts_cmd          Commands[NumberOfCommands];
 416         } dcerpc_rts;
 417
 418         typedef [enum8bit] enum {
 419                 DCERPC_PKT_REQUEST     =  0,    /* Ordinary request. */
 420                 DCERPC_PKT_PING        =  1,    /* Connectionless is server alive ? */
 421                 DCERPC_PKT_RESPONSE    =  2,    /* Ordinary reply. */
 422                 DCERPC_PKT_FAULT       =  3,    /* Fault in processing of call. */
 423                 DCERPC_PKT_WORKING     =  4,    /* Connectionless reply to a ping when server busy. */
 424                 DCERPC_PKT_NOCALL      =  5,    /* Connectionless reply to a ping when server has lost part of clients call. */
 425                 DCERPC_PKT_REJECT      =  6,    /* Refuse a request with a code. */
 426                 DCERPC_PKT_ACK         =  7,    /* Connectionless client to server code. */
 427                 DCERPC_PKT_CL_CANCEL   =  8,    /* Connectionless cancel. */
 428                 DCERPC_PKT_FACK        =  9,    /* Connectionless fragment ack. Both client and server send. */
 429                 DCERPC_PKT_CANCEL_ACK  = 10,    /* Server ACK to client cancel request. */
 430                 DCERPC_PKT_BIND        = 11,    /* Bind to interface. */
 431                 DCERPC_PKT_BIND_ACK    = 12,    /* Server ack of bind. */
 432                 DCERPC_PKT_BIND_NAK    = 13,    /* Server nack of bind. */
 433                 DCERPC_PKT_ALTER       = 14,    /* Alter auth. */
 434                 DCERPC_PKT_ALTER_RESP  = 15,    /* Reply to alter auth. */
 435                 DCERPC_PKT_AUTH3       = 16,    /* not the real name!  this is undocumented! */
 436                 DCERPC_PKT_SHUTDOWN    = 17,    /* Server to client request to shutdown. */
 437                 DCERPC_PKT_CO_CANCEL   = 18,    /* Connection-oriented cancel request. */
 438                 DCERPC_PKT_ORPHANED    = 19,    /* Client telling server it's aborting a partially sent request or telling server to stop sending replies. */
 439                 DCERPC_PKT_RTS         = 20     /* RTS packets used in ncacn_http */
 440         } dcerpc_pkt_type;
 441
 442         typedef [nodiscriminant] union {
 443                 [case(DCERPC_PKT_REQUEST)]    dcerpc_request  request;
 444                 [case(DCERPC_PKT_PING)]           dcerpc_ping ping;
 445                 [case(DCERPC_PKT_RESPONSE)]   dcerpc_response response;
 446                 [case(DCERPC_PKT_FAULT)]          dcerpc_fault fault;
 447                 [case(DCERPC_PKT_WORKING)]        dcerpc_working working;
 448                 [case(DCERPC_PKT_NOCALL)]     dcerpc_fack nocall;
 449                 [case(DCERPC_PKT_REJECT)]     dcerpc_fault reject;
 450                 [case(DCERPC_PKT_ACK)]        dcerpc_ack ack;
 451                 [case(DCERPC_PKT_CL_CANCEL)]  dcerpc_cl_cancel cl_cancel;
 452                 [case(DCERPC_PKT_FACK)]       dcerpc_fack fack;
 453                 [case(DCERPC_PKT_CANCEL_ACK)] dcerpc_cancel_ack cancel_ack;
 454                 [case(DCERPC_PKT_BIND)]       dcerpc_bind     bind;
 455                 [case(DCERPC_PKT_BIND_ACK)]   dcerpc_bind_ack bind_ack;
 456                 [case(DCERPC_PKT_BIND_NAK)]   dcerpc_bind_nak bind_nak;
 457                 [case(DCERPC_PKT_ALTER)]      dcerpc_bind     alter;
 458                 [case(DCERPC_PKT_ALTER_RESP)] dcerpc_bind_ack alter_resp;
 459                 [case(DCERPC_PKT_SHUTDOWN)]   dcerpc_shutdown shutdown;
 460                 [case(DCERPC_PKT_CO_CANCEL)]  dcerpc_co_cancel co_cancel;
 461                 [case(DCERPC_PKT_ORPHANED)]   dcerpc_orphaned orphaned;
 462                 [case(DCERPC_PKT_AUTH3)]      dcerpc_auth3    auth3;
 463                 [case(DCERPC_PKT_RTS)]        dcerpc_rts      rts;
 464         } dcerpc_payload;
 465
 466         /* pfc_flags values */
 467         const uint8 DCERPC_PFC_FLAG_FIRST               = 0x01; /* First fragment */
 468         const uint8 DCERPC_PFC_FLAG_LAST                = 0x02; /* Last fragment */
 469         const uint8 DCERPC_PFC_FLAG_PENDING_CANCEL      = 0x04; /* Cancel was pending at sender */
 470         const uint8 DCERPC_PFC_FLAG_SUPPORT_HEADER_SIGN = DCERPC_PFC_FLAG_PENDING_CANCEL; /* depends on the pdu type */
 471         const uint8 DCERPC_PFC_FLAG_CONC_MPX            = 0x10; /* supports concurrent multiplexing of a single connection. */
 472         const uint8 DCERPC_PFC_FLAG_DID_NOT_EXECUTE     = 0x20; /* on a fault it means the server hasn't done anything */
 473         const uint8 DCERPC_PFC_FLAG_MAYBE               = 0x40; /* `maybe' call semantics requested */
 474         const uint8 DCERPC_PFC_FLAG_OBJECT_UUID         = 0x80; /* on valid guid is in the optional object field */
 475
 476         /* these offsets are needed by the signing code */
 477         const uint8 DCERPC_PFC_OFFSET      =  3;
 478         const uint8 DCERPC_DREP_OFFSET     =  4;
 479         const uint8 DCERPC_FRAG_LEN_OFFSET =  8;
 480         const uint8 DCERPC_AUTH_LEN_OFFSET = 10;
 481         const uint8 DCERPC_NCACN_PAYLOAD_OFFSET = 16;
 482
 483         /* little-endian flag */
 484         const uint8 DCERPC_DREP_LE  = 0x10;
 485
 486         typedef [public] struct {
 487                 uint8 rpc_vers;         /* RPC version */
 488                 uint8 rpc_vers_minor;   /* Minor version */
 489                 dcerpc_pkt_type ptype;  /* Packet type */
 490                 uint8 pfc_flags;        /* Fragmentation flags */
 491                 uint8 drep[4];          /* NDR data representation */
 492                 uint16 frag_length;     /* Total length of fragment */
 493                 uint16 auth_length;     /* authenticator length */
 494                 uint32 call_id;         /* Call identifier */
 495                 [switch_is(ptype)] dcerpc_payload u;
 496         } ncacn_packet;
 497
 498         typedef [public] struct {
 499                 uint8 rpc_vers;         /* RPC version (4) */
 500                 uint8 ptype;
 501                 uint8 pfc_flags;
 502                 uint8 ncadg_flags;
 503                 uint8 drep[3];
 504                 uint8 serial_high;
 505                 GUID object;
 506                 GUID iface;
 507                 GUID activity;
 508                 uint32 server_boot; /* Server boot time */
 509                 uint32 iface_version;
 510                 uint32 seq_num;
 511                 uint16 opnum;
 512                 uint16 ihint;
 513                 uint16 ahint;
 514                 uint16 len;
 515                 uint16 fragnum;
 516                 uint8 auth_proto;
 517                 uint8 serial_low;
 518                 [switch_is(ptype)] dcerpc_payload u;
 519         } ncadg_packet;
 520
 521         typedef [bitmap16bit] bitmap {
 522                 DCERPC_SEC_VT_COMMAND_ENUM  = 0x3FFF,
 523                 DCERPC_SEC_VT_COMMAND_END   = 0x4000,
 524                 DCERPC_SEC_VT_MUST_PROCESS  = 0x8000
 525         } dcerpc_sec_vt_command;
 526
 527         typedef [enum16bit] enum {
 528                 DCERPC_SEC_VT_COMMAND_BITMASK1  = 0x0001,
 529                 DCERPC_SEC_VT_COMMAND_PCONTEXT  = 0x0002,
 530                 DCERPC_SEC_VT_COMMAND_HEADER2   = 0x0003
 531         } dcerpc_sec_vt_command_enum;
 532
 533         typedef [bitmap32bit] bitmap {
 534                 DCERPC_SEC_VT_CLIENT_SUPPORTS_HEADER_SIGNING = 0x00000001
 535         } dcerpc_sec_vt_bitmask1;
 536
 537         typedef struct {
 538                 ndr_syntax_id abstract_syntax;
 539                 ndr_syntax_id transfer_syntax;
 540         } dcerpc_sec_vt_pcontext;
 541
 542         typedef struct {
 543                 dcerpc_pkt_type ptype;  /* Packet type */
 544                 [value(0)] uint8 reserved1;
 545                 [value(0)] uint16 reserved2;
 546                 uint8 drep[4];          /* NDR data representation */
 547                 uint32 call_id;         /* Call identifier */
 548                 uint16 context_id;
 549                 uint16 opnum;
 550         } dcerpc_sec_vt_header2;
 551
 552         typedef [switch_type(dcerpc_sec_vt_command_enum),nodiscriminant] union {
 553         [case(DCERPC_SEC_VT_COMMAND_BITMASK1)] dcerpc_sec_vt_bitmask1 bitmask1;
 554         [case(DCERPC_SEC_VT_COMMAND_PCONTEXT)] dcerpc_sec_vt_pcontext pcontext;
 555         [case(DCERPC_SEC_VT_COMMAND_HEADER2)] dcerpc_sec_vt_header2 header2;
 556         [default,flag(NDR_REMAINING)] DATA_BLOB _unknown;
 557         } dcerpc_sec_vt_union;
 558
 559         typedef struct {
 560                 dcerpc_sec_vt_command command;
 561                 [switch_is(command & DCERPC_SEC_VT_COMMAND_ENUM)]
 562                         [subcontext(2),flag(NDR_SUBCONTEXT_NO_UNREAD_BYTES)]
 563                         dcerpc_sec_vt_union u;
 564         } dcerpc_sec_vt;
 565
 566         typedef [public,nopush,nopull] struct {
 567                 uint16 count;
 568         } dcerpc_sec_vt_count;
 569
 570         /*
 571          * We assume that the whole verification trailer fits into
 572          * the last 1024 bytes after the stub data.
 573          *
 574          * There're currently only 3 commands defined and each should
 575          * only be used once.
 576          */
 577         const uint16 DCERPC_SEC_VT_MAX_SIZE = 1024;
 578
 579         typedef [public,flag(NDR_PAHEX)] struct {
 580                 [flag(NDR_ALIGN4)] DATA_BLOB _pad;
 581                 [value(DCERPC_SEC_VT_MAGIC)] uint8 magic[8];
 582                 dcerpc_sec_vt_count count;
 583                 dcerpc_sec_vt commands[count.count];
 584         } dcerpc_sec_verification_trailer;
 585 }