dcerpc.idl

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#include "idl_types.h"

/*
  the base dcerpc packet definitions - not traditionally coded as IDL,
  but given that pidl can handle it nicely it simplifies things a lot
  to do it this way

  see http://www.opengroup.org/onlinepubs/9629399/chap12.htm for packet
  layouts
*/
import "misc.idl";

interface dcerpc
{
	typedef struct {
		uint16 context_id;
		uint8 num_transfer_syntaxes;
		ndr_syntax_id abstract_syntax;
		ndr_syntax_id transfer_syntaxes[num_transfer_syntaxes];
	} dcerpc_ctx_list;

	typedef struct {
		uint16 max_xmit_frag;
		uint16 max_recv_frag;
		uint32 assoc_group_id;
		uint8  num_contexts;
		dcerpc_ctx_list ctx_list[num_contexts];
		[flag(NDR_ALIGN4)]    DATA_BLOB _pad;
		[flag(NDR_REMAINING)] DATA_BLOB auth_info;
	} dcerpc_bind;

	const uint8 DCERPC_REQUEST_LENGTH = 24;
	const uint8 DCERPC_MAX_SIGN_SIZE  = 32;

	typedef struct {
	} dcerpc_empty;
	
	typedef [nodiscriminant] union {
		[default] dcerpc_empty empty;
		[case(LIBNDR_FLAG_OBJECT_PRESENT)] GUID object;
	} dcerpc_object;

	typedef struct {
		uint32 alloc_hint;
		uint16 context_id;
		uint16 opnum;
		[switch_is(ndr->flags & LIBNDR_FLAG_OBJECT_PRESENT)] dcerpc_object object;
		[flag(NDR_ALIGN8)]    DATA_BLOB _pad;
		[flag(NDR_REMAINING)] DATA_BLOB stub_and_verifier;
	} dcerpc_request;

	const int DCERPC_BIND_REASON_ASYNTAX                 = 1;
	const int DCERPC_BIND_PROVIDER_REJECT                = 2;
	const int DECRPC_BIND_PROTOCOL_VERSION_NOT_SUPPORTED = 4;
	const int DCERPC_BIND_REASON_INVALID_AUTH_TYPE       = 8;

	typedef struct {
		uint16 result;
		uint16 reason;
		ndr_syntax_id syntax;
	} dcerpc_ack_ctx;

	typedef struct {
		uint16 max_xmit_frag;
		uint16 max_recv_frag;
		uint32 assoc_group_id;
		[value(strlen(secondary_address)+1)] uint16 secondary_address_size;
		[charset(DOS)] uint8 secondary_address[secondary_address_size];
		[flag(NDR_ALIGN4)]    DATA_BLOB _pad1;
		uint8 num_results;
		dcerpc_ack_ctx ctx_list[num_results];
		[flag(NDR_REMAINING)] DATA_BLOB auth_info;
	} dcerpc_bind_ack;

	typedef struct {
		uint32 num_versions;
		uint32 versions[num_versions];
	} dcerpc_bind_nak_versions;
	
	typedef [nodiscriminant] union {
		[case(DECRPC_BIND_PROTOCOL_VERSION_NOT_SUPPORTED)] dcerpc_bind_nak_versions v;
		[default] ;
	} dcerpc_bind_nak_versions_ctr;

	typedef struct {
		uint16 reject_reason;
		[switch_is(reject_reason)] dcerpc_bind_nak_versions_ctr versions;
	} dcerpc_bind_nak;

	const uint8 DCERPC_RESPONSE_LENGTH = 24;

	typedef struct {
		uint32 alloc_hint;
		uint16 context_id;
		uint8 cancel_count;
		[flag(NDR_ALIGN8)]    DATA_BLOB _pad;
		[flag(NDR_REMAINING)] DATA_BLOB stub_and_verifier;
	} dcerpc_response;


	const int DCERPC_FAULT_OP_RNG_ERROR       = 0x1c010002;
	const int DCERPC_FAULT_UNK_IF             = 0x1c010003;
	const int DCERPC_FAULT_NDR                = 0x000006f7;
	const int DCERPC_FAULT_INVALID_TAG        = 0x1c000006;
	const int DCERPC_FAULT_CONTEXT_MISMATCH   = 0x1c00001a;
	const int DCERPC_FAULT_OTHER              = 0x00000001;
	const int DCERPC_FAULT_ACCESS_DENIED      = 0x00000005;
	const int DCERPC_FAULT_CANT_PERFORM       = 0x000006d8;

	/* we return this fault when we haven't yet run the test
	   to see what fault w2k3 returns in this case */
	const int DCERPC_FAULT_TODO         = 0x00000042;

	typedef struct {
		uint32 alloc_hint;
		uint16 context_id;
		uint8 cancel_count;
		uint32 status;
		[flag(NDR_REMAINING)] DATA_BLOB _pad;
	} dcerpc_fault;

	/* the auth types we know about */
	typedef [enum8bit] enum {
		DCERPC_AUTH_TYPE_NONE     = 0,
		/* this seems to be not krb5! */
		DCERPC_AUTH_TYPE_KRB5_1   = 1,
		DCERPC_AUTH_TYPE_SPNEGO   = 9,
		DCERPC_AUTH_TYPE_NTLMSSP  = 10,
		DCERPC_AUTH_TYPE_KRB5     = 16,
		DCERPC_AUTH_TYPE_DPA      = 17,
		DCERPC_AUTH_TYPE_MSN      = 18,
		DCERPC_AUTH_TYPE_DIGEST   = 21,
		DCERPC_AUTH_TYPE_SCHANNEL = 68,
		DCERPC_AUTH_TYPE_MSMQ     = 100
	} dcerpc_AuthType;

	typedef [enum8bit] enum {
		DCERPC_AUTH_LEVEL_NONE      = 1,
		DCERPC_AUTH_LEVEL_CONNECT   = 2,
		DCERPC_AUTH_LEVEL_CALL      = 3,
		DCERPC_AUTH_LEVEL_PACKET    = 4,
		DCERPC_AUTH_LEVEL_INTEGRITY = 5,
		DCERPC_AUTH_LEVEL_PRIVACY   = 6
	} dcerpc_AuthLevel;

	const uint8 DCERPC_AUTH_LEVEL_DEFAULT	= DCERPC_AUTH_LEVEL_CONNECT;

	typedef [public] struct {
		dcerpc_AuthType auth_type; 
		dcerpc_AuthLevel auth_level;
		uint8  auth_pad_length;
		uint8  auth_reserved;
		uint32 auth_context_id;
		[flag(NDR_REMAINING)] DATA_BLOB credentials;
	} dcerpc_auth;

	typedef [public] struct {
		uint32 _pad;
		[flag(NDR_REMAINING)] DATA_BLOB auth_info;
	} dcerpc_auth3;

	typedef [public] struct {
		uint32 _pad;
		[flag(NDR_REMAINING)] DATA_BLOB auth_info;
	} dcerpc_orphaned;

	typedef [public] struct {
		uint32 _pad;
		[flag(NDR_REMAINING)] DATA_BLOB auth_info;
	} dcerpc_co_cancel;

	typedef [public] struct {
		uint32 version;
		uint32 id;
	} dcerpc_cl_cancel;

	typedef [public] struct {
		uint32 version; 
		uint32 id;
		boolean32 server_is_accepting;
	} dcerpc_cancel_ack;

	typedef [public] struct {
		uint32 version;
		uint8 _pad1;
		uint16 window_size;
		uint32 max_tdsu;
		uint32 max_frag_size;
		uint16 serial_no;
		uint16 selack_size;
		uint32 selack[selack_size];
	} dcerpc_fack;

	typedef [public] struct {
	} dcerpc_ack;

	typedef [public] struct {
	} dcerpc_ping;

	typedef [public] struct {
	} dcerpc_shutdown;
	
	typedef [public] struct {
	} dcerpc_working;

	typedef [enum8bit] enum {
		DCERPC_PKT_REQUEST     =  0,
		DCERPC_PKT_PING        =  1,
		DCERPC_PKT_RESPONSE    =  2,
		DCERPC_PKT_FAULT       =  3,
		DCERPC_PKT_WORKING     =  4,
		DCERPC_PKT_NOCALL      =  5,
		DCERPC_PKT_REJECT      =  6,
		DCERPC_PKT_ACK         =  7,
		DCERPC_PKT_CL_CANCEL   =  8,
		DCERPC_PKT_FACK        =  9,
		DCERPC_PKT_CANCEL_ACK  = 10,
		DCERPC_PKT_BIND        = 11,
		DCERPC_PKT_BIND_ACK    = 12,
		DCERPC_PKT_BIND_NAK    = 13,
		DCERPC_PKT_ALTER       = 14,
		DCERPC_PKT_ALTER_RESP  = 15,
		DCERPC_PKT_AUTH3       = 16,
		DCERPC_PKT_SHUTDOWN    = 17,
		DCERPC_PKT_CO_CANCEL   = 18,
		DCERPC_PKT_ORPHANED    = 19
	} dcerpc_pkt_type;

	typedef [nodiscriminant] union {
		[case(DCERPC_PKT_REQUEST)]    dcerpc_request  request;
		[case(DCERPC_PKT_PING)] 	  dcerpc_ping ping;
		[case(DCERPC_PKT_RESPONSE)]   dcerpc_response response;
		[case(DCERPC_PKT_FAULT)]	  dcerpc_fault fault;
		[case(DCERPC_PKT_WORKING)]	  dcerpc_working working;
		[case(DCERPC_PKT_NOCALL)]     dcerpc_fack nocall;
		[case(DCERPC_PKT_REJECT)]     dcerpc_fault reject;
		[case(DCERPC_PKT_ACK)]        dcerpc_ack ack;
		[case(DCERPC_PKT_CL_CANCEL)]  dcerpc_cl_cancel cl_cancel;
		[case(DCERPC_PKT_FACK)]       dcerpc_fack fack;
		[case(DCERPC_PKT_CANCEL_ACK)] dcerpc_cancel_ack cancel_ack;
		[case(DCERPC_PKT_BIND)]       dcerpc_bind     bind;
		[case(DCERPC_PKT_BIND_ACK)]   dcerpc_bind_ack bind_ack;
		[case(DCERPC_PKT_BIND_NAK)]   dcerpc_bind_nak bind_nak;
		[case(DCERPC_PKT_ALTER)]      dcerpc_bind     alter;
		[case(DCERPC_PKT_ALTER_RESP)] dcerpc_bind_ack alter_resp;
		[case(DCERPC_PKT_SHUTDOWN)]   dcerpc_shutdown shutdown;
		[case(DCERPC_PKT_CO_CANCEL)]  dcerpc_co_cancel co_cancel;
		[case(DCERPC_PKT_ORPHANED)]   dcerpc_orphaned orphaned;
		[case(DCERPC_PKT_AUTH3)]      dcerpc_auth3    auth3;
	} dcerpc_payload;

	/* pfc_flags values */
	const uint8 DCERPC_PFC_FLAG_FIRST		= 0x01; /* First fragment */
	const uint8 DCERPC_PFC_FLAG_LAST		= 0x02; /* Last fragment */
	const uint8 DCERPC_PFC_FLAG_PENDING_CANCEL	= 0x04; /* Cancel was pending at sender */
	const uint8 DCERPC_PFC_FLAG_CONC_MPX		= 0x10; /* supports concurrent multiplexing of a single connection. */
	const uint8 DCERPC_PFC_FLAG_DID_NOT_EXECUTE	= 0x20; /* on a fault it means the server hasn't done anything */
	const uint8 DCERPC_PFC_FLAG_MAYBE		= 0x40; /* `maybe' call semantics requested */
	const uint8 DCERPC_PFC_FLAG_OBJECT_UUID		= 0x80; /* on valid guid is in the optional object field */

	/* these offsets are needed by the signing code */
	const uint8 DCERPC_DREP_OFFSET     =  4;
	const uint8 DCERPC_FRAG_LEN_OFFSET =  8;
	const uint8 DCERPC_AUTH_LEN_OFFSET = 10;

	/* little-endian flag */
	const uint8 DCERPC_DREP_LE  = 0x10;

	typedef [public] struct {
		uint8 rpc_vers;	        /* RPC version */
		uint8 rpc_vers_minor;   /* Minor version */
		dcerpc_pkt_type ptype;  /* Packet type */
		uint8 pfc_flags;        /* Fragmentation flags */
		uint8 drep[4];	        /* NDR data representation */
		uint16 frag_length;     /* Total length of fragment */
		uint16 auth_length;     /* authenticator length */
		uint32 call_id;	        /* Call identifier */
		[switch_is(ptype)] dcerpc_payload u;
	} ncacn_packet;

	typedef [public] struct {
		uint8 rpc_vers;		/* RPC version (4) */
		uint8 ptype;
		uint8 pfc_flags;
		uint8 ncadg_flags;
		uint8 drep[3];
		uint8 serial_high;
		GUID object;
		GUID iface;
		GUID activity;
		uint32 server_boot; /* Server boot time */
		uint32 iface_version;
		uint32 seq_num;
		uint16 opnum;
		uint16 ihint;
		uint16 ahint;
		uint16 len;
		uint16 fragnum;
		uint8 auth_proto;
		uint8 serial_low;
		[switch_is(ptype)] dcerpc_payload u;
	} ncadg_packet;
}