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#include "idl_types.h"

import "misc.idl";
import "server_id.idl";
import "security.idl";
import "auth.idl";

[
	uuid("07408340-ae31-11e1-97dc-539f7fddc06f"),
	version(0.0),
	pointer_default(unique),
	helpstring("smbXsrv structures")
]
interface smbXsrv
{
	/*
	 * smbXsrv_version* is designed to allow
	 * rolling code upgrades in future (within a cluster).
	 *
	 * This just adds the infrastructure,
	 * but we does not implement it yet!
	 *
	 * Currently it only prevents that
	 * nodes with a different version numbers
	 * cannot run at the same time.
	 *
	 * Each node checks at startup, if the version
	 * matches the version of all other nodes.
	 * And it exits if the version does not match
	 * to avoid corruption.
	 *
	 * While it would be possible to add versioning
	 * to each of our internal databases it is easier
	 * use a dedicated database "smbXsrv_version_global.tdb"
	 * to hold the global version information.
	 *
	 * This removes extra complexity from the individual
	 * databases and allows that we add/remove databases
	 * or use different indexing keys.
	 *
	 */
	typedef [v1_enum] enum {
		/*
		 * NOTE: Version 0 is designed to be unstable and the format
		 * may change during development.
		 */
		SMBXSRV_VERSION_0 = 0x00000000
	} smbXsrv_version_values;

	const uint32 SMBXSRV_VERSION_CURRENT = SMBXSRV_VERSION_0;

	typedef struct {
		server_id				server_id;
		smbXsrv_version_values			min_version;
		smbXsrv_version_values			max_version;
		smbXsrv_version_values			current_version;
	} smbXsrv_version_node0;

	typedef struct {
		[ignore] db_record 			*db_rec;
		[range(1, 1024)] uint32			num_nodes;
		smbXsrv_version_node0			nodes[num_nodes];
	} smbXsrv_version_global0;

	typedef union {
		[case(0)] smbXsrv_version_global0	*info0;
		[default] hyper				*dummy;
	} smbXsrv_version_globalU;

	typedef [public] struct {
		smbXsrv_version_values			version;
		uint32					seqnum;
		[switch_is(version)] smbXsrv_version_globalU info;
	} smbXsrv_version_globalB;

	void smbXsrv_version_global_decode(
		[in] smbXsrv_version_globalB blob
		);

	/* sessions */

	typedef struct {
		server_id				server_id;
		[charset(UTF8),string] char		local_address[];
		[charset(UTF8),string] char		remote_address[];
		[charset(UTF8),string] char		remote_name[];
		[noprint] DATA_BLOB			signing_key;
		uint32					auth_session_info_seqnum;
	} smbXsrv_channel_global0;

	typedef struct {
		[ignore] db_record 			*db_rec;
		uint32					session_global_id;
		hyper					session_wire_id;
		NTTIME					creation_time;
		NTTIME					expiration_time;
		/*
		 * auth_session is NULL until the
		 * session is valid for the first time.
		 */
		uint32					auth_session_info_seqnum;
		auth_session_info			*auth_session_info;
		uint16					connection_dialect;
		boolean8				signing_required;
		boolean8				encryption_required;
		[noprint] DATA_BLOB			signing_key;
		[noprint] DATA_BLOB			encryption_key;
		[noprint] DATA_BLOB			decryption_key;
		[noprint] DATA_BLOB			application_key;
		[range(1, 1024)] uint32			num_channels;
		smbXsrv_channel_global0			channels[num_channels];
	} smbXsrv_session_global0;

	typedef union {
		[case(0)] smbXsrv_session_global0	*info0;
		[default] hyper				*dummy;
	} smbXsrv_session_globalU;

	typedef [public] struct {
		smbXsrv_version_values			version;
		uint32					seqnum;
		[switch_is(version)] smbXsrv_session_globalU info;
	} smbXsrv_session_globalB;

	void smbXsrv_session_global_decode(
		[in] smbXsrv_session_globalB blob
		);

	/*
	 * The main server code should just work with
	 * 'struct smbXsrv_session' and never use
	 * smbXsrv_session0, smbXsrv_sessionU
	 * and smbXsrv_sessionB directly.
	 *
	 * If we need to change the smbXsrv_session,
	 * we can just rename smbXsrv_session
	 * to smbXsrv_session0 and add a new
	 * smbXsrv_session for version 1
	 * and could implement transparent mapping.
	 */
	typedef struct {
		[ignore] smbXsrv_session_table		*table;
		[ignore] db_record 			*db_rec;
		[ignore] smbXsrv_connection		*connection;
		uint32					local_id;
		[ref] smbXsrv_session_global0		*global;
		NTSTATUS				status;
		NTTIME					idle_time;
		hyper					nonce_high;
		hyper					nonce_low;
		[ignore] gensec_security		*gensec;
		[ignore] user_struct			*compat;
		[ignore] smbXsrv_tcon_table		*tcon_table;
	} smbXsrv_session;

	typedef union {
		[case(0)] smbXsrv_session		*info0;
		[default] hyper				*dummy;
	} smbXsrv_sessionU;

	typedef [public] struct {
		smbXsrv_version_values			version;
		[value(0)] uint32			reserved;
		[switch_is(version)] smbXsrv_sessionU	info;
	} smbXsrv_sessionB;

	void smbXsrv_session_decode(
		[in] smbXsrv_sessionB blob
		);

	/*
	 * smbXsrv_session_close is use in the MSG_SMBXSRV_SESSION_CLOSE
	 * message
	 */
	typedef struct {
		uint32					old_session_global_id;
		hyper					old_session_wire_id;
		NTTIME					old_creation_time;
		hyper					new_session_wire_id;
	} smbXsrv_session_close0;

	typedef union {
		[case(0)] smbXsrv_session_close0	*info0;
		[default] hyper				*dummy;
	} smbXsrv_session_closeU;

	typedef [public] struct {
		smbXsrv_version_values			version;
		[value(0)] uint32			reserved;
		[switch_is(version)] smbXsrv_session_closeU	info;
	} smbXsrv_session_closeB;

	void smbXsrv_session_close_decode(
		[in] smbXsrv_session_closeB blob
		);

	/* tree connects */

	typedef struct {
		[ignore] db_record 			*db_rec;
		uint32					tcon_global_id;
		uint32					tcon_wire_id;
		server_id				server_id;
		NTTIME					creation_time;
		[charset(UTF8),string] char		share_name[];
		boolean8				encryption_required;
		/*
		 * for SMB1 this is the session that the tcon was opened on
		 */
		uint32					session_global_id;
	} smbXsrv_tcon_global0;

	typedef union {
		[case(0)] smbXsrv_tcon_global0		*info0;
		[default] hyper				*dummy;
	} smbXsrv_tcon_globalU;

	typedef [public] struct {
		smbXsrv_version_values			version;
		uint32					seqnum;
		[switch_is(version)] smbXsrv_tcon_globalU info;
	} smbXsrv_tcon_globalB;

	void smbXsrv_tcon_global_decode(
		[in] smbXsrv_tcon_globalB blob
		);

	/*
	 * The main server code should just work with
	 * 'struct smbXsrv_tcon' and never use
	 * smbXsrv_tcon0, smbXsrv_tconU
	 * and smbXsrv_tconB directly.
	 *
	 * If we need to change the smbXsrv_tcon,
	 * we can just rename smbXsrv_tcon
	 * to smbXsrv_tcon0 and add a new
	 * smbXsrv_tcon for version 1
	 * and could implement transparent mapping.
	 */
	typedef struct {
		[ignore] smbXsrv_tcon_table		*table;
		[ignore] db_record 			*db_rec;
		uint32					local_id;
		[ref] smbXsrv_tcon_global0		*global;
		NTSTATUS				status;
		NTTIME					idle_time;
		[ignore] connection_struct		*compat;
	} smbXsrv_tcon;

	typedef union {
		[case(0)] smbXsrv_tcon			*info0;
		[default] hyper				*dummy;
	} smbXsrv_tconU;

	typedef [public] struct {
		smbXsrv_version_values			version;
		[value(0)] uint32			reserved;
		[switch_is(version)] smbXsrv_tconU	info;
	} smbXsrv_tconB;

	void smbXsrv_tcon_decode(
		[in] smbXsrv_tconB blob
		);

	/* open files */

	typedef struct {
		[ignore] db_record 			*db_rec;
		server_id				server_id;
		uint32					open_global_id;
		hyper					open_persistent_id;
		hyper					open_volatile_id;
		dom_sid					open_owner;
		NTTIME					open_time;
		GUID					create_guid;
		GUID					client_guid;
		GUID					app_instance_id;
		/*
		 * TODO: for durable/resilient/persistent handles we need more
		 *       things here. See [MS-SMB2] 3.3.1.10 Per Open
		 *
		 * NOTE: this is still version 0, which is not a stable format!
		 */
		NTTIME					disconnect_time;
		uint32					durable_timeout_msec;
		boolean8				durable;
		DATA_BLOB				backend_cookie;
	} smbXsrv_open_global0;

	typedef union {
		[case(0)] smbXsrv_open_global0		*info0;
		[default] hyper				*dummy;
	} smbXsrv_open_globalU;

	typedef [public] struct {

		smbXsrv_version_values			version;
		uint32					seqnum;
		[switch_is(version)] smbXsrv_open_globalU info;
	} smbXsrv_open_globalB;

	void smbXsrv_open_global_decode(
		[in] smbXsrv_open_globalB blob
		);

	/*
	 * The main server code should just work with
	 * 'struct smbXsrv_open' and never use
	 * smbXsrv_open0, smbXsrv_openU
	 * and smbXsrv_openB directly.
	 *
	 * If we need to change the smbXsrv_open,
	 * we can just rename smbXsrv_open
	 * to smbXsrv_open0 and add a new
	 * smbXsrv_open for version 1
	 * and could implement transparent mapping.
	 */
	typedef struct {
		[ignore] smbXsrv_open_table		*table;
		[ignore] db_record 			*db_rec;
		uint32					local_id;
		[ref] smbXsrv_open_global0		*global;
		NTSTATUS				status;
		NTTIME					idle_time;
		[ignore] files_struct			*compat;
	} smbXsrv_open;

	typedef union {
		[case(0)] smbXsrv_open			*info0;
		[default] hyper				*dummy;
	} smbXsrv_openU;

	typedef [public] struct {
		smbXsrv_version_values			version;
		[value(0)] uint32			reserved;
		[switch_is(version)] smbXsrv_openU	info;
	} smbXsrv_openB;

	void smbXsrv_open_decode(
		[in] smbXsrv_openB blob
		);
}