nbt.idl

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#include "idl_types.h"

/*
   IDL structures for NBT operations

   NBT is not traditionally encoded using IDL/NDR. This is a bit of an
   experiment, and I may well switch us back to a more traditional
   encoding if it doesn't work out
*/

import "misc.idl", "security.idl", "svcctl.idl", "samr.idl";
[
	helper("libcli/netlogon.h", "libcli/nbt/libnbt.h")
]
interface nbt
{
	const int NBT_NAME_SERVICE_PORT  = 137;
	const int NBT_DGRAM_SERVICE_PORT = 138;

	typedef [bitmap16bit] bitmap {
		NBT_RCODE                   = 0x000F,
		NBT_FLAG_BROADCAST          = 0x0010,
		NBT_FLAG_RECURSION_AVAIL    = 0x0080,
		NBT_FLAG_RECURSION_DESIRED  = 0x0100,
		NBT_FLAG_TRUNCATION         = 0x0200,
		NBT_FLAG_AUTHORITIVE        = 0x0400,
		NBT_OPCODE                  = 0x7800,
		NBT_FLAG_REPLY              = 0x8000
	} nbt_operation;

	/* the opcodes are in the operation field, masked with
	   NBT_OPCODE */
	typedef enum {
		NBT_OPCODE_QUERY          =  (0x0<<11),
		NBT_OPCODE_REGISTER       =  (0x5<<11),
		NBT_OPCODE_RELEASE        =  (0x6<<11),
		NBT_OPCODE_WACK           =  (0x7<<11),
		NBT_OPCODE_REFRESH        =  (0x8<<11),
		NBT_OPCODE_REFRESH2       =  (0x9<<11),
		NBT_OPCODE_MULTI_HOME_REG =  (0xf<<11)
	} nbt_opcode;

	/* rcode values */
	typedef enum {
		NBT_RCODE_OK  = 0x0,
		NBT_RCODE_FMT = 0x1,
		NBT_RCODE_SVR = 0x2,
		NBT_RCODE_NAM = 0x3,
		NBT_RCODE_IMP = 0x4,
		NBT_RCODE_RFS = 0x5,
		NBT_RCODE_ACT = 0x6,
		NBT_RCODE_CFT = 0x7
	} nbt_rcode;

	/* we support any 8bit name type, but by defining the common
	   ones here we get better debug displays */
	typedef [enum8bit] enum {
		NBT_NAME_CLIENT   = 0x00,
		NBT_NAME_MS       = 0x01,
		NBT_NAME_USER     = 0x03,
		NBT_NAME_SERVER   = 0x20,
		NBT_NAME_PDC      = 0x1B,
		NBT_NAME_LOGON    = 0x1C,
		NBT_NAME_MASTER   = 0x1D,
		NBT_NAME_BROWSER  = 0x1E
	} nbt_name_type;

	/* the ndr parser for nbt_name is separately defined in
	   nbtname.c (along with the parsers for nbt_string) */
	typedef [public,nopull,nopush] struct {
		string        name;
		string        scope;
		nbt_name_type type;
	} nbt_name;

	typedef [public,enum16bit] enum {
		NBT_QCLASS_IP = 0x01
	} nbt_qclass;

	typedef [public,enum16bit] enum {
		NBT_QTYPE_ADDRESS     = 0x0001,
		NBT_QTYPE_NAMESERVICE = 0x0002,
		NBT_QTYPE_NULL        = 0x000A,
		NBT_QTYPE_NETBIOS     = 0x0020,
		NBT_QTYPE_STATUS      = 0x0021
	} nbt_qtype;

	typedef struct {
		nbt_name   name;
		nbt_qtype  question_type;
		nbt_qclass question_class;
	} nbt_name_question;

	/* these are the possible values of the NBT_NM_OWNER_TYPE
	   field */
	typedef enum {
		NBT_NODE_B = 0x0000,
		NBT_NODE_P = 0x2000,
		NBT_NODE_M = 0x4000,
		NBT_NODE_H = 0x6000
	} nbt_node_type;

	typedef [bitmap16bit] bitmap {
		NBT_NM_PERMANENT        = 0x0200,
		NBT_NM_ACTIVE           = 0x0400,
		NBT_NM_CONFLICT         = 0x0800,
		NBT_NM_DEREGISTER       = 0x1000,
		NBT_NM_OWNER_TYPE       = 0x6000,
		NBT_NM_GROUP            = 0x8000
	} nb_flags;

	typedef struct {
		nb_flags nb_flags;
		ipv4address ipaddr;
	} nbt_rdata_address;

	typedef struct {
		uint16 length;
		nbt_rdata_address addresses[length/6];
	} nbt_rdata_netbios;

	typedef struct {
		uint8 unit_id[6];
		uint8 jumpers;
		uint8 test_result;
		uint16 version_number;
		uint16 period_of_statistics;
		uint16 number_of_crcs;
		uint16 number_alignment_errors;
		uint16 number_of_collisions;
		uint16 number_send_aborts;
		uint32 number_good_sends;
		uint32 number_good_receives;
		uint16 number_retransmits;
		uint16 number_no_resource_conditions;
		uint16 number_free_command_blocks;
		uint16 total_number_command_blocks;
		uint16 max_total_number_command_blocks;
		uint16 number_pending_sessions;
		uint16 max_number_pending_sessions;
		uint16 max_total_sessions_possible;
		uint16 session_data_packet_size;
	} nbt_statistics;

	typedef struct {
		[charset(DOS)] uint8 name[15];
		nbt_name_type type;
		nb_flags  nb_flags;
	} nbt_status_name;

	typedef struct {
		[value(num_names * 18 + 47)] uint16 length;
		uint8 num_names;
		nbt_status_name names[num_names];
		nbt_statistics  statistics;
	} nbt_rdata_status;

	typedef struct {
		uint16 length;
		uint8  data[length];
	} nbt_rdata_data;

	typedef [nodiscriminant,public] union {
		[case(NBT_QTYPE_NETBIOS)] nbt_rdata_netbios netbios;
		[case(NBT_QTYPE_STATUS)]  nbt_rdata_status status;
		[default]                 nbt_rdata_data   data;
	} nbt_rdata;

/*
 * this macro works around the problem
 * that we need to use nbt_rdata_data
 * together with NBT_QTYPE_NETBIOS
 * for WACK replies
 */
	typedef [flag(LIBNDR_PRINT_ARRAY_HEX),nopush] struct {
		nbt_name   name;
		nbt_qtype  rr_type;
		nbt_qclass rr_class;
		uint32     ttl;
		[switch_is(rr_type)] nbt_rdata rdata;
	} nbt_res_rec;

	typedef [flag(NDR_NOALIGN|NDR_BIG_ENDIAN|NDR_PAHEX),public] struct {
		uint16            name_trn_id;
		nbt_operation     operation;
		uint16            qdcount;
		uint16            ancount;
		uint16            nscount;
		uint16            arcount;
		nbt_name_question questions[qdcount];
		nbt_res_rec       answers[ancount];
		nbt_res_rec       nsrecs[nscount];
		nbt_res_rec       additional[arcount];
		[flag(NDR_REMAINING)] DATA_BLOB padding;
	} nbt_name_packet;


	/*
	  NBT DGRAM packets (UDP/138)
	*/

	typedef [enum8bit] enum {
		DGRAM_DIRECT_UNIQUE  = 0x10,
		DGRAM_DIRECT_GROUP   = 0x11,
		DGRAM_BCAST          = 0x12,
		DGRAM_ERROR          = 0x13,
		DGRAM_QUERY          = 0x14,
		DGRAM_QUERY_POSITIVE = 0x15,
		DGRAM_QUERY_NEGATIVE = 0x16
	} dgram_msg_type;

	typedef [bitmap8bit] bitmap {
		DGRAM_FLAG_MORE         = 0x01,
		DGRAM_FLAG_FIRST        = 0x02,
		DGRAM_FLAG_NODE_TYPE    = 0x0C
	} dgram_flags;

	typedef [enum8bit] enum {
		DGRAM_NODE_B    = 0x00,
		DGRAM_NODE_P    = 0x04,
		DGRAM_NODE_M    = 0x08,
		DGRAM_NODE_NBDD = 0x0C
	} dgram_node_type;

	/* a dgram_message is the main dgram body in general use */

	/* the most common datagram type is a SMB_TRANSACTION
	   operation, where a SMB packet is used in the data section
	   of a dgram_message to hold a trans request, which in turn
	   holds a small command structure. It's a very strange beast
	   indeed. To make the code cleaner we define a basic SMB
	   packet in IDL here. This is not a general purpose SMB
	   packet, and won't be used in the core SMB client/server
	   code, but it does make working with these types of dgrams
	   easier */

	const string NBT_MAILSLOT_NETLOGON = "\\MAILSLOT\\NET\\NETLOGON";
	const string NBT_MAILSLOT_NTLOGON  = "\\MAILSLOT\\NET\\NTLOGON";
	const string NBT_MAILSLOT_GETDC    = "\\MAILSLOT\\NET\\GETDC";
	const string NBT_MAILSLOT_BROWSE   = "\\MAILSLOT\\BROWSE";

	typedef [enum8bit] enum {
		SMB_TRANSACTION = 0x25
	} smb_command;

	typedef struct {
		[range(17,17),value(17)] uint8 wct;
		uint16                      total_param_count;
		uint16                      total_data_count;
		uint16                      max_param_count;
		uint16                      max_data_count;
		uint8                       max_setup_count;
		uint8                       pad;
		uint16                      trans_flags;
		uint32                      timeout;
		uint16                      reserved;
		uint16                      param_count;
		uint16                      param_offset;
		uint16                      data_count;
		uint16                      data_offset;
		[range(3,3),value(3)] uint8 setup_count;
		uint8                       pad2;
		uint16                      opcode;
		uint16                      priority;
		uint16                      class;
		[value(strlen(mailslot_name)+1+data.length)] 
		      uint16                byte_count;
		astring                     mailslot_name;
		[flag(NDR_REMAINING)]       DATA_BLOB data;
	} smb_trans_body;

	typedef [nodiscriminant] union {
		[case(SMB_TRANSACTION)] smb_trans_body trans;
	} smb_body;


	typedef [flag(NDR_NOALIGN|NDR_LITTLE_ENDIAN|NDR_PAHEX),public] struct {
		smb_command                smb_command;
		uint8                      err_class;
		uint8                      pad;
		uint16                     err_code;
		uint8                      flags;
		uint16                     flags2;
		uint16                     pid_high;
		uint8                      signature[8];
		uint16                     reserved;
		uint16                     tid;
		uint16                     pid;
		uint16                     vuid;
		uint16                     mid;
		[switch_is(smb_command)]   smb_body body;
	} dgram_smb_packet;

    	const uint32 DGRAM_SMB = 0xff534d42; /* 0xffSMB */

	typedef [nodiscriminant] union {
		[case(DGRAM_SMB)] dgram_smb_packet smb;
	} dgram_message_body;

	typedef struct {
		uint16          length;
		uint16          offset;
		nbt_name        source_name;
		nbt_name        dest_name;
		uint32		dgram_body_type;
		[switch_is(dgram_body_type)] dgram_message_body body;
	} dgram_message;

	typedef [enum8bit] enum {
		DGRAM_ERROR_NAME_NOT_PRESENT = 0x82,
		DGRAM_ERROR_INVALID_SOURCE   = 0x83,
		DGRAM_ERROR_INVALID_DEST     = 0x84
	} dgram_err_code;

	typedef [nodiscriminant] union {
		[case(DGRAM_DIRECT_UNIQUE)]   dgram_message  msg;
		[case(DGRAM_DIRECT_GROUP)]    dgram_message  msg;
		[case(DGRAM_BCAST)]           dgram_message  msg;
		[case(DGRAM_ERROR)]           dgram_err_code error;
		[case(DGRAM_QUERY)]           nbt_name       dest_name;
		[case(DGRAM_QUERY_POSITIVE)]  nbt_name       dest_name;
		[case(DGRAM_QUERY_NEGATIVE)]  nbt_name       dest_name;
	} dgram_data;

	typedef [flag(NDR_NOALIGN|NDR_BIG_ENDIAN|NDR_PAHEX),public] struct {