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samba-mirror/librpc/idl/nbt.idl
Joseph Sutton edad945339 librpc/nbt: Avoid reading invalid member of union
WACK packets use the ‘data’ member of the ‘nbt_rdata’ union, but they
claim to be a different type — NBT_QTYPE_NETBIOS — than would normally
be used with that union member. This means that if rr_type is equal to
NBT_QTYPE_NETBIOS, ndr_push_nbt_res_rec() has to guess which type the
structure really is by examining the data member. However, if the
structure is actually of a different type, that union member will not be
valid and accessing it will invoke undefined behaviour.

To fix this, eliminate all the guesswork and introduce a new type,
NBT_QTYPE_WACK, which can never appear on the wire, and which indicates
that although the ‘data’ union member should be used, the wire type is
actually NBT_QTYPE_NETBIOS.

This means that as far as NDR is concerned, the ‘netbios’ member of the
‘nbt_rdata’ union will consistently be used for all NBT_QTYPE_NETBIOS
structures; we shall no longer access the wrong member of the union.

Credit to OSS-Fuzz.

REF: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=38480

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15019

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>

Autobuild-User(master): Douglas Bagnall <dbagnall@samba.org>
Autobuild-Date(master): Fri Jul  7 01:14:06 UTC 2023 on atb-devel-224
2023-07-07 01:14:06 +00:00

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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";
[
helper("../librpc/ndr/ndr_nbt.h"),
helpstring("NBT messages"),
uuid("6def41b6-86e4-4c32-997c-ed33af7bcd8e")
]
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_AUTHORITATIVE = 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,nopush] enum {
NBT_QTYPE_ADDRESS = 0x0001,
NBT_QTYPE_NAMESERVICE = 0x0002,
NBT_QTYPE_NULL = 0x000A,
NBT_QTYPE_NETBIOS = 0x0020,
NBT_QTYPE_STATUS = 0x0021,
/*
* Indicates that this is a WACK packet. As long as the size of
* int is larger than 16 bits, this value cannot appear on the
* wire. Well encode it instead as NBT_QTYPE_NETBIOS.
*/
NBT_QTYPE_WACK = -1
} 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;
typedef [flag(LIBNDR_PRINT_ARRAY_HEX)] 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 {
dgram_msg_type msg_type;
dgram_flags flags;
uint16 dgram_id;
ipv4address src_addr;
uint16 src_port;
[switch_is(msg_type)] dgram_data data;
} nbt_dgram_packet;
/******************************************
* \MAILSLOT\NET\NETLOGON mailslot requests
* and
* \MAILSLOT\NET\NTLOGON mailslot requests
*/
typedef [public,gensize] struct {
uint32 sockaddr_family;
[flag(NDR_BIG_ENDIAN)] ipv4address pdc_ip;
[flag(NDR_REMAINING)] DATA_BLOB remaining;
} nbt_sockaddr;
typedef [bitmap32bit,public] bitmap {
NBT_SERVER_PDC = 0x00000001,
NBT_SERVER_GC = 0x00000004,
NBT_SERVER_LDAP = 0x00000008,
NBT_SERVER_DS = 0x00000010,
NBT_SERVER_KDC = 0x00000020,
NBT_SERVER_TIMESERV = 0x00000040,
NBT_SERVER_CLOSEST = 0x00000080,
NBT_SERVER_WRITABLE = 0x00000100,
NBT_SERVER_GOOD_TIMESERV = 0x00000200,
NBT_SERVER_NDNC = 0x00000400,
NBT_SERVER_SELECT_SECRET_DOMAIN_6 = 0x00000800, /* 2008 / RODC */
NBT_SERVER_FULL_SECRET_DOMAIN_6 = 0x00001000, /* 2008 */
NBT_SERVER_ADS_WEB_SERVICE = 0x00002000,
NBT_SERVER_DS_8 = 0x00004000, /* 2012 */
NBT_SERVER_DS_9 = 0x00008000, /* 2012R2 */
NBT_SERVER_DS_10 = 0x00010000, /* 2016 */
NBT_SERVER_HAS_DNS_NAME = 0x20000000,
NBT_SERVER_IS_DEFAULT_NC = 0x40000000,
NBT_SERVER_FOREST_ROOT = 0x80000000
} nbt_server_type;
typedef [bitmap32bit,public] bitmap {
NETLOGON_NT_VERSION_1 = 0x00000001,
NETLOGON_NT_VERSION_5 = 0x00000002,
NETLOGON_NT_VERSION_5EX = 0x00000004,
NETLOGON_NT_VERSION_5EX_WITH_IP = 0x00000008,
NETLOGON_NT_VERSION_WITH_CLOSEST_SITE = 0x00000010,
NETLOGON_NT_VERSION_AVOID_NT4EMUL = 0x01000000,
NETLOGON_NT_VERSION_PDC = 0x10000000,
NETLOGON_NT_VERSION_IP = 0x20000000,
NETLOGON_NT_VERSION_LOCAL = 0x40000000,
NETLOGON_NT_VERSION_GC = 0x80000000
} netlogon_nt_version_flags;
typedef [enum16bit,public] enum {
LOGON_REQUEST = 0,
LOGON_RESPONSE2 = 6,
LOGON_PRIMARY_QUERY = 7, /* Was also NETLOGON_QUERY_FOR_PDC */
NETLOGON_ANNOUNCE_UAS = 10,
NETLOGON_RESPONSE_FROM_PDC = 12,
LOGON_SAM_LOGON_REQUEST = 18, /* Was also NETLOGON_QUERY_FOR_PDC2, NTLOGON_SAM_LOGON */
LOGON_SAM_LOGON_RESPONSE = 19, /* Was also NTLOGON_SAM_LOGON_REPLY */
LOGON_SAM_LOGON_PAUSE_RESPONSE = 20,
LOGON_SAM_LOGON_USER_UNKNOWN = 21, /* Was also NTLOGON_SAM_LOGON_REPLY15 */
LOGON_SAM_LOGON_RESPONSE_EX = 23, /* was NETLOGON_RESPONSE_FROM_PDC2 */
LOGON_SAM_LOGON_PAUSE_RESPONSE_EX = 24,
LOGON_SAM_LOGON_USER_UNKNOWN_EX = 25 /* was NETLOGON_RESPONSE_FROM_PDC_USER */
} netlogon_command;
/* query to dc hand marshaled, as it has 'optional'
* parts */
typedef [nopull,nopush] struct {
uint16 request_count;
nstring computer_name;
nstring user_name;
astring mailslot_name;
uint32 acct_control;
/* samr_AcctFlags acct_control; */
[value(ndr_size_dom_sid0(&sid, ndr->flags))] uint32 sid_size;
/* The manual alignment is required because this
* structure is marked flag(NDR_NOALIGN) via the
* nbt_netlogon_packet below.
*
* However, both MUST only be present if sid_size > 0
*/
[flag(NDR_ALIGN4)] DATA_BLOB _pad;
[subcontext(0),subcontext_size(sid_size)] dom_sid0 sid;
netlogon_nt_version_flags nt_version;
uint16 lmnt_token;
uint16 lm20_token;
} NETLOGON_SAM_LOGON_REQUEST;
typedef struct {
astring computer_name;
astring user_name;
astring mailslot_name;
uint8 request_count;
uint16 lmnt_token;
uint16 lm20_token;
} NETLOGON_LOGON_REQUEST;
typedef [flag(NDR_NOALIGN),public] struct {
netlogon_command command;
nstring pdc_name;
nstring user_name;
nstring domain_name;
netlogon_nt_version_flags nt_version;
uint16 lmnt_token;
uint16 lm20_token;
} NETLOGON_SAM_LOGON_RESPONSE_NT40;
typedef [flag(NDR_NOALIGN),public] struct {
netlogon_command command;
nstring pdc_name;
nstring user_name;
nstring domain_name;
GUID domain_uuid;
GUID zero_uuid;
nbt_string forest;
nbt_string dns_domain;
nbt_string pdc_dns_name;
ipv4address pdc_ip;
nbt_server_type server_type;
netlogon_nt_version_flags nt_version;
uint16 lmnt_token;
uint16 lm20_token;
} NETLOGON_SAM_LOGON_RESPONSE;
/* response from pdc hand marshaled (we have an additional
* function that uses this structure), as it has 'optional'
* parts */
typedef [flag(NDR_NOALIGN),public] struct {
netlogon_command command;
uint16 sbz; /* From the docs */
nbt_server_type server_type;
GUID domain_uuid;
nbt_string forest;
nbt_string dns_domain;
nbt_string pdc_dns_name;
nbt_string domain_name;
nbt_string pdc_name;
nbt_string user_name;
nbt_string server_site;
nbt_string client_site;
/* Optional on NETLOGON_NT_VERSION_5EX_WITH_IP */
[value(ndr_size_nbt_sockaddr(&sockaddr, ndr->flags))] uint8 sockaddr_size;
[subcontext(0),subcontext_size(sockaddr_size)] nbt_sockaddr sockaddr;
/* Optional on NETLOGON_NT_VERSION_WITH_CLOSEST_SITE */
nbt_string next_closest_site;
netlogon_nt_version_flags nt_version;
uint16 lmnt_token;
uint16 lm20_token;
} NETLOGON_SAM_LOGON_RESPONSE_EX;
typedef [nopush,nopull] union {
[case(NETLOGON_NT_VERSION_1)] NETLOGON_SAM_LOGON_RESPONSE_NT40 nt4;
[case(NETLOGON_NT_VERSION_5)] NETLOGON_SAM_LOGON_RESPONSE nt5;
[case(NETLOGON_NT_VERSION_5EX)] NETLOGON_SAM_LOGON_RESPONSE_EX nt5_ex;
} netlogon_samlogon_response_union;
typedef [nopush,nopull] struct {
uint32 ntver;
[switch_is(ntver)] netlogon_samlogon_response_union data;
} netlogon_samlogon_response;
/* query for pdc request */
typedef struct {
astring computer_name;
astring mailslot_name;
[flag(NDR_ALIGN2)] DATA_BLOB _pad;
nstring unicode_name;
netlogon_nt_version_flags nt_version;
uint16 lmnt_token;
uint16 lm20_token;
} nbt_netlogon_query_for_pdc;
/* response from pdc */
typedef [public] struct {
netlogon_command command;
astring pdc_name;
[flag(NDR_ALIGN2)] DATA_BLOB _pad;
nstring unicode_pdc_name;
nstring domain_name;
netlogon_nt_version_flags nt_version;
uint16 lmnt_token;
uint16 lm20_token;
} nbt_netlogon_response_from_pdc;
typedef [flag(NDR_NOALIGN),public] struct {
netlogon_command command;
astring pdc_name;
uint16 lm20_token;
} nbt_netlogon_response2;
/* used to announce SAM changes - MS-NRPC 2.2.1.5.1 */
typedef struct {
netr_SamDatabaseID db_index;
hyper serial;
NTTIME timestamp;
} nbt_db_change_info;
typedef struct {
uint32 serial_lo;
time_t timestamp;
uint32 pulse;
uint32 random;
astring pdc_name;
astring domain;
[flag(NDR_ALIGN2)] DATA_BLOB _pad;
nstring unicode_pdc_name;
nstring unicode_domain;
uint32 db_count;
nbt_db_change_info dbchange[db_count];
[value(ndr_size_dom_sid0(&sid, ndr->flags))] uint32 sid_size;
[subcontext(0),subcontext_size(sid_size)] dom_sid0 sid;
uint32 message_format_version;
uint32 message_token;
} NETLOGON_DB_CHANGE;
typedef [nodiscriminant] union {
[case(LOGON_REQUEST)] NETLOGON_LOGON_REQUEST logon0;
[case(LOGON_SAM_LOGON_REQUEST)] NETLOGON_SAM_LOGON_REQUEST logon;
[case(LOGON_PRIMARY_QUERY)] nbt_netlogon_query_for_pdc pdc;
[case(NETLOGON_ANNOUNCE_UAS)] NETLOGON_DB_CHANGE uas;
} nbt_netlogon_request;
#if 0
/* These responses are all handled manually, as they cannot be encoded in IDL fully
See push_nbt_netlogon_response()
*/
[case(NETLOGON_RESPONSE_FROM_PDC)] nbt_netlogon_response_from_pdc response;
[case(NETLOGON_RESPONSE_FROM_PDC_USER)] nbt_netlogon_response_from_pdc2 response2;
[case(LOGON_SAM_LOGON_PAUSE_RESPONSE)] NETLOGON_SAM_LOGON_RESPONSE reply;
[case(LOGON_SAM_LOGON_RESPONSE)] NETLOGON_SAM_LOGON_RESPONSE reply;
[case(LOGON_SAM_LOGON_USER_UNKNOWN)] NETLOGON_SAM_LOGON_RESPONSE reply;
[case(LOGON_SAM_LOGON_RESPONSE_EX)] NETLOGON_SAM_LOGON_RESPONSE_EX reply_ex;
[case(LOGON_SAM_LOGON_PAUSE_RESPONSE_EX)] NETLOGON_SAM_LOGON_RESPONSE_EX reply_ex;
[case(LOGON_SAM_LOGON_USER_UNKNOWN_EX)] NETLOGON_SAM_LOGON_RESPONSE_EX reply_ex;
#endif
typedef [flag(NDR_NOALIGN),public] struct {
netlogon_command command;
[switch_is(command)] nbt_netlogon_request req;
} nbt_netlogon_packet;
/********************************************************/
/* \MAILSLOT\BROWSE mailslot requests */
/* for details see http://ubiqx.org/cifs/Browsing.html */
/********************************************************/
typedef bitmap svcctl_ServerType svcctl_ServerType;
typedef [enum8bit] enum {
HostAnnouncement = 1,
AnnouncementRequest = 2,
Election = 8,
GetBackupListReq = 9,
GetBackupListResp = 10,
BecomeBackup = 11,
DomainAnnouncement = 12,
MasterAnnouncement = 13,
ResetBrowserState = 14,
LocalMasterAnnouncement = 15
} nbt_browse_opcode;
typedef struct {
uint8 UpdateCount;
uint32 Periodicity;
[charset(DOS)] uint8 ServerName[16];
uint8 OSMajor;
uint8 OSMinor;
svcctl_ServerType ServerType;
uint8 BroMajorVer;
uint8 BroMinorVer;
uint16 Signature;
astring Comment;
} nbt_browse_host_announcement;
typedef struct {
uint8 Unused;
astring ResponseName;
} nbt_browse_announcement_request;
typedef struct {
uint8 Version;
uint32 Criteria;
uint32 UpTime; /* In milliseconds */
uint32 Reserved; /* Must be zero */
astring ServerName;
} nbt_browse_election_request;
typedef struct {
uint8 ReqCount;
uint32 Token;
} nbt_browse_backup_list_request;
typedef struct {
uint8 BackupCount;
uint32 Token;
nbt_name BackupServerList[BackupCount];/* TODO: this is wrong */
} nbt_browse_backup_list_response;
typedef struct {
astring BrowserName;
} nbt_browse_become_backup;
typedef struct {
uint8 UpdateCount;
uint32 Periodicity;
[charset(DOS)] uint8 ServerName[16];
uint8 OSMajor;
uint8 OSMinor;
svcctl_ServerType ServerType;
uint32 MysteriousField;
astring Comment;
} nbt_browse_domain_announcement;
typedef struct {
astring ServerName;
} nbt_browse_master_announcement;
typedef struct {
uint8 Command;
} nbt_browse_reset_state;
typedef struct {
uint8 UpdateCount;
uint32 Periodicity;
[charset(DOS)] uint8 ServerName[16];
uint8 OSMajor;
uint8 OSMinor;
svcctl_ServerType ServerType;
uint8 BroMajorVer;
uint8 BroMinorVer;
uint16 Signature;
astring Comment;
} nbt_browse_local_master_announcement;
typedef [nodiscriminant] union {
[case(HostAnnouncement)] nbt_browse_host_announcement host_annoucement;
[case(AnnouncementRequest)] nbt_browse_announcement_request announcement_request;
[case(Election)] nbt_browse_election_request election_request;
[case(GetBackupListReq)] nbt_browse_backup_list_request backup_list_request;
[case(GetBackupListResp)] nbt_browse_backup_list_response backup_list_response;
[case(BecomeBackup)] nbt_browse_become_backup become_backup;
[case(DomainAnnouncement)] nbt_browse_domain_announcement domain_announcement;
[case(MasterAnnouncement)] nbt_browse_master_announcement master_announcement;
[case(ResetBrowserState)] nbt_browse_reset_state reset_browser_state;
[case(LocalMasterAnnouncement)] nbt_browse_local_master_announcement local_master_announcement;
} nbt_browse_payload;
typedef [public,flag(NDR_NOALIGN)] struct {
nbt_browse_opcode opcode;
[switch_is(opcode)] nbt_browse_payload payload;
} nbt_browse_packet;
}