/* packet-smb.h
 * Defines for SMB packet dissection
 * Copyright 1999, Richard Sharpe <rsharpe@ns.aus.com>
 *
 * Wireshark - Network traffic analyzer
 * By Gerald Combs <gerald@wireshark.org>
 * Copyright 1998, 1999 Gerald Combs
 *
 * SPDX-License-Identifier: GPL-2.0-or-later
 */

#ifndef __PACKET_SMB_H__
#define __PACKET_SMB_H__

#include "ws_symbol_export.h"

#include <epan/proto.h>
#include <epan/wmem_scopes.h>

WS_DLL_PUBLIC gboolean sid_name_snooping;

/* SMB command codes, from the SNIA CIFS spec. With MSVC and a
 * libwireshark.dll, we need a special declaration.
 */
WS_DLL_PUBLIC value_string_ext smb_cmd_vals_ext;
WS_DLL_PUBLIC value_string_ext trans2_cmd_vals_ext;
WS_DLL_PUBLIC value_string_ext nt_cmd_vals_ext;

#define SMB_COM_CREATE_DIRECTORY		0x00
#define SMB_COM_DELETE_DIRECTORY		0x01
#define SMB_COM_OPEN				0x02
#define SMB_COM_CREATE				0x03
#define SMB_COM_CLOSE				0x04
#define SMB_COM_FLUSH				0x05
#define SMB_COM_DELETE				0x06
#define SMB_COM_RENAME				0x07
#define SMB_COM_QUERY_INFORMATION		0x08
#define SMB_COM_SET_INFORMATION			0x09
#define SMB_COM_READ				0x0A
#define SMB_COM_WRITE				0x0B
#define SMB_COM_LOCK_BYTE_RANGE			0x0C
#define SMB_COM_UNLOCK_BYTE_RANGE		0x0D
#define SMB_COM_CREATE_TEMPORARY		0x0E
#define SMB_COM_CREATE_NEW			0x0F
#define SMB_COM_CHECK_DIRECTORY			0x10
#define SMB_COM_PROCESS_EXIT			0x11
#define SMB_COM_SEEK				0x12
#define SMB_COM_LOCK_AND_READ			0x13
#define SMB_COM_WRITE_AND_UNLOCK		0x14
#define SMB_COM_READ_RAW			0x1A
#define SMB_COM_READ_MPX			0x1B
#define SMB_COM_READ_MPX_SECONDARY		0x1C
#define SMB_COM_WRITE_RAW			0x1D
#define SMB_COM_WRITE_MPX			0x1E
#define SMB_COM_WRITE_MPX_SECONDARY		0x1F
#define SMB_COM_WRITE_COMPLETE			0x20
#define SMB_COM_QUERY_SERVER			0x21
#define SMB_COM_SET_INFORMATION2		0x22
#define SMB_COM_QUERY_INFORMATION2		0x23
#define SMB_COM_LOCKING_ANDX			0x24
#define SMB_COM_TRANSACTION			0x25
#define SMB_COM_TRANSACTION_SECONDARY		0x26
#define SMB_COM_IOCTL				0x27
#define SMB_COM_IOCTL_SECONDARY			0x28
#define SMB_COM_COPY				0x29
#define SMB_COM_MOVE				0x2A
#define SMB_COM_ECHO				0x2B
#define SMB_COM_WRITE_AND_CLOSE			0x2C
#define SMB_COM_OPEN_ANDX			0x2D
#define SMB_COM_READ_ANDX			0x2E
#define SMB_COM_WRITE_ANDX			0x2F
#define SMB_COM_NEW_FILE_SIZE			0x30
#define SMB_COM_CLOSE_AND_TREE_DISC		0x31
#define SMB_COM_TRANSACTION2			0x32
#define SMB_COM_TRANSACTION2_SECONDARY		0x33
#define SMB_COM_FIND_CLOSE2			0x34
#define SMB_COM_FIND_NOTIFY_CLOSE		0x35
/* Used by Xenix/Unix		0x60-0x6E */
#define SMB_COM_TREE_CONNECT			0x70
#define SMB_COM_TREE_DISCONNECT			0x71
#define SMB_COM_NEGOTIATE			0x72
#define SMB_COM_SESSION_SETUP_ANDX		0x73
#define SMB_COM_LOGOFF_ANDX			0x74
#define SMB_COM_TREE_CONNECT_ANDX		0x75
#define SMB_COM_QUERY_INFORMATION_DISK		0x80
#define SMB_COM_SEARCH				0x81
#define SMB_COM_FIND				0x82
#define SMB_COM_FIND_UNIQUE			0x83
#define SMB_COM_FIND_CLOSE			0x84
#define SMB_COM_NT_TRANSACT			0xA0
#define SMB_COM_NT_TRANSACT_SECONDARY		0xA1
#define SMB_COM_NT_CREATE_ANDX			0xA2
#define SMB_COM_NT_CANCEL			0xA4
#define SMB_COM_NT_RENAME			0xA5
#define SMB_COM_OPEN_PRINT_FILE			0xC0
#define SMB_COM_WRITE_PRINT_FILE		0xC1
#define SMB_COM_CLOSE_PRINT_FILE		0xC2
#define SMB_COM_GET_PRINT_QUEUE			0xC3
#define SMB_COM_READ_BULK			0xD8
#define SMB_COM_WRITE_BULK			0xD9
#define SMB_COM_WRITE_BULK_DATA			0xDA

/* Error codes */

#define SMB_SUCCESS 0x00  /* All OK */
#define SMB_ERRDOS  0x01  /* DOS based error */
#define SMB_ERRSRV  0x02  /* server error, network file manager */
#define SMB_ERRHRD  0x03  /* Hardware style error */
#define SMB_ERRCMD  0x04  /* Not an SMB format command */

/* used for SMB export object functionality */
typedef struct _smb_eo_t {
	guint	      smbversion;
	guint16	      cmd;
	int	      tid,uid;
	guint	      fid;
	guint32	      pkt_num;
	gchar	     *hostname;
	gchar	     *filename;
	int	      fid_type;
	gint64	      end_of_file;
	gchar	     *content_type;
	guint32	      payload_len;
	const guint8 *payload_data;
	guint64	      smb_file_offset;
	guint32	      smb_chunk_len;
} smb_eo_t;

/* the information we need to keep around for NT transaction commands */
typedef struct {
	int	subcmd;
	int	fid_type;
	guint32 ioctl_function;
} smb_nt_transact_info_t;

/* the information we need to keep around for transaction2 commands */
typedef struct {
	int	    subcmd;
	int	    info_level;
	gboolean    resume_keys; /* if "return resume" keys set in T2 FIND_FIRST request */
	const char *name;
} smb_transact2_info_t;

/*
 * The information we need to save about a request in order to show the
 * frame number of the request in the dissection of the reply.
 */
#define SMB_SIF_TID_IS_IPC	0x0001
#define SMB_SIF_IS_CONTINUED	0x0002
typedef enum {
	SMB_EI_NONE,		/* Unassigned / NULL */
	SMB_EI_FID,		/* FID */
	SMB_EI_NTI,		/* smb_nt_transact_info_t * */
	SMB_EI_TRI,		/* smb_transact_info_t * */
	SMB_EI_T2I,		/* smb_transact2_info_t * */
	SMB_EI_TIDNAME,		/* tid tracking char * */
	SMB_EI_FILEDATA,	/* fid tracking */
	SMB_EI_FILENAME,	/* filename tracking */
	SMB_EI_UID,		/* smb_uid_t */
	SMB_EI_RWINFO,		/* read/write offset/count info */
	SMB_EI_LOCKDATA,	/* locking and x data */
	SMB_EI_RENAMEDATA,	/* rename data */
	SMB_EI_DIALECTS		/* negprot dialects */
} smb_extra_info_t;

typedef struct _smb_fid_into_t smb_fid_info_t;

typedef struct {
	guint32		  frame_req, frame_res;
	nstime_t	  req_time;
	guint16		  flags;
	guint8		  cmd;
	void		 *extra_info;
	smb_extra_info_t  extra_info_type;
	/* we save the fid in each transaction so that we can get fid filters
	   to match both request and response */
	gboolean	  fid_seen_in_request;
	guint16		  fid;
} smb_saved_info_t;

/*
 * The information we need to save about a Transaction request in order
 * to dissect the reply; this includes information for use by the
 * Remote API and Mailslot dissectors.
 * XXX - have an additional data structure hung off of this by the
 * subdissectors?
 */
typedef struct {
	int	 subcmd;
	int	 trans_subcmd;
	int	 function;
	/* Unification of fid variable type (was int) */
	guint16	 fid;
	guint16	 lanman_cmd;
	guchar	*param_descrip; /* Keep these descriptors around */
	guchar	*data_descrip;
	guchar	*aux_data_descrip;
	int	 info_level;
} smb_transact_info_t;

/*
 * Subcommand type.
 */
#define TRANSACTION_PIPE	0
#define TRANSACTION_MAILSLOT	1

/* these are defines used to represent different types of TIDs.
   don't use the value 0 for any of these */
#define TID_NORMAL	1
#define TID_IPC		2

/* this is the structure which is associated with each conversation */
typedef struct conv_tables {
	/* these two tables are used to match requests with responses */
	GHashTable  *unmatched;
	GHashTable  *matched;
	/* This table keeps primary transact requests so secondaries can find
	   them */
	GHashTable  *primaries;

	/* This table is used to track TID->services for a conversation */
	GHashTable  *tid_service;
	gboolean     raw_ntlmssp; /* Do extended security exc use raw ntlmssp */

	/* track fid to fidstruct (filename/openframe/closeframe */
	wmem_tree_t *fid_tree;
        /* We'll use a GSL list instead */
        GSList	    *GSL_fid_info;

	/* track tid to fidstruct (sharename/shareframe/unshareframe */
	wmem_tree_t *tid_tree;

	/* track uid to username mappings */
	wmem_tree_t *uid_tree;
} conv_tables_t;

typedef struct smb_info {
  guint8   cmd;
  int	   tid, pid, uid, mid;
  guint32  nt_status;
  gboolean unicode;		/* Are strings in this SMB Unicode? */
  gboolean request;		/* Is this a request? */
  gboolean unidir;
  int	   info_level;
  int	   info_count;
  smb_saved_info_t *sip;	/* smb_saved_info_t, if any, for this */
  conv_tables_t	   *ct;
} smb_info_t;

/*
 * Show file data for a read or write.
 */
extern int dissect_file_data(tvbuff_t *tvb, proto_tree *tree, int offset,
    guint16 bc, guint16 datalen);


#define SMB_FID_TYPE_UNKNOWN	0
#define SMB_FID_TYPE_FILE	1
#define SMB_FID_TYPE_DIR	2
#define SMB_FID_TYPE_PIPE	3

/* used for tracking filenames from rename request to response */
typedef struct _smb_rename_saved_info_t {
	char *old_name;
	char *new_name;
} smb_rename_saved_info_t;

/* used for tracking lock data between lock request/response */
typedef struct _smb_lock_info_t {
	struct _smb_lock_info_t *next;
	guint16	pid;
	guint64	offset;
	guint64	length;
} smb_lock_info_t;

typedef struct _smb_locking_saved_info_t {
	guint8	type;
	guint8	oplock_level;
	guint16	num_lock;
	guint16	num_unlock;
	smb_lock_info_t *locks;
	smb_lock_info_t *unlocks;
} smb_locking_saved_info_t;

/* used for tracking fid/tid to filename/sharename openedframe closedframe */
typedef struct _smb_fid_saved_info_t {
	char	*filename;
	guint32	 create_flags;
	guint32	 access_mask;
	guint32	 file_attributes;
	guint32	 share_access;
	guint32	 create_options;
	guint32	 create_disposition;
} smb_fid_saved_info_t;

struct _smb_fid_into_t {
        guint16	tid,fid;
        /* The end_of_file will store the last registered offset or
           the reported end_of_file from the SMB protocol */
        gint64	end_of_file;
        /* These two were int */
	guint	opened_in;
	guint	closed_in;
	int	type;
	smb_fid_saved_info_t *fsi;
};

/* used for tracking tid to sharename openedframe closedframe */
typedef struct _smb_tid_into_t {
	int   opened_in;
	int   closed_in;
	char *filename;
	int   type;
} smb_tid_info_t;


/*
 * Dissect an smb FID
 */
extern smb_fid_info_t *dissect_smb_fid(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
    int offset, int len, guint16 fid, gboolean is_created, gboolean is_closed, gboolean is_generated, smb_info_t* si);

/*
 * Dissect named pipe state information.
 */
extern int dissect_ipc_state(tvbuff_t *tvb, proto_tree *parent_tree,
    int offset, gboolean setstate);

extern gboolean smb_dcerpc_reassembly;

extern const value_string create_disposition_vals[];

extern int dissect_nt_create_options(tvbuff_t *tvb, proto_tree *parent_tree, int offset);

extern int dissect_nt_share_access(tvbuff_t *tvb, proto_tree *parent_tree, int offset);

extern int dissect_smb_access_mask(tvbuff_t *tvb, proto_tree *parent_tree, int offset);

extern const value_string oa_open_vals[];
extern const value_string impersonation_level_vals[];

extern gboolean sid_display_hex;

extern int dissect_security_information_mask(tvbuff_t *tvb, proto_tree *parent_tree, int offset);

extern int dissect_qfsi_FS_VOLUME_INFO(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, int offset, guint16 *bcp, int unicode);
extern int dissect_qfsi_FS_SIZE_INFO(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, int offset, guint16 *bcp);
extern int dissect_qfsi_FS_DEVICE_INFO(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, int offset, guint16 *bcp);
extern int dissect_qfsi_FS_ATTRIBUTE_INFO(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, int offset, guint16 *bcp);
extern int dissect_nt_quota(tvbuff_t *tvb, proto_tree *tree, int offset, guint16 *bcp);
extern int dissect_nt_user_quota(tvbuff_t *tvb, proto_tree *tree, int offset, guint16 *bcp);
extern int dissect_nt_get_user_quota(tvbuff_t *tvb, proto_tree *tree, int offset, guint32 *bcp);
extern int dissect_qfsi_FS_OBJECTID_INFO(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, int offset, guint16 *bcp);
extern int dissect_qfsi_FS_FULL_SIZE_INFO(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, int offset, guint16 *bcp);
extern int dissect_qfi_SMB_FILE_EA_INFO(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, guint16 *bcp, gboolean *trunc);
extern int dissect_qfi_SMB_FILE_STREAM_INFO(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, int offset, guint16 *bcp, gboolean *trunc, int unicode);
extern int dissect_qfi_SMB_FILE_NAME_INFO(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, guint16 *bcp, gboolean *trunc, gboolean unicode);
extern int dissect_qfi_SMB_FILE_STANDARD_INFO(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, guint16 *bcp, gboolean *trunc);
extern int dissect_qfi_SMB_FILE_INTERNAL_INFO(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, guint16 *bcp, gboolean *trunc);
extern int dissect_qsfi_SMB_FILE_POSITION_INFO(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, guint16 *bcp, gboolean *trunc);
extern int dissect_qsfi_SMB_FILE_MODE_INFO(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, guint16 *bcp, gboolean *trunc);
extern int dissect_qfi_SMB_FILE_ALIGNMENT_INFO(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, guint16 *bcp, gboolean *trunc);
extern int dissect_qfi_SMB_FILE_COMPRESSION_INFO(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, guint16 *bcp, gboolean *trunc);
extern int dissect_qfi_SMB_FILE_NETWORK_OPEN_INFO(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, guint16 *bcp, gboolean *trunc);
extern int dissect_qfi_SMB_FILE_ATTRIBUTE_TAG_INFO(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, guint16 *bcp, gboolean *trunc);
extern int dissect_qsfi_SMB_FILE_ALLOCATION_INFO(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, guint16 *bcp, gboolean *trunc);
extern int dissect_qsfi_SMB_FILE_ENDOFFILE_INFO(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, guint16 *bcp, gboolean *trunc);
extern int dissect_nt_notify_completion_filter(tvbuff_t *tvb, proto_tree *parent_tree, int offset);
extern int dissect_sfi_SMB_FILE_PIPE_INFO(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, guint16 *bcp, gboolean *trunc);
extern int dissect_get_dfs_request_data(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, guint16 *bcp, gboolean unicode);
extern int dissect_get_dfs_referral_data(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, guint16 *bcp, gboolean unicode);

/* Returns an IP (v4 or v6) of the server in a SMB/SMB2 conversation */
extern const gchar *tree_ip_str(packet_info *pinfo, guint16 cmd);

#endif

/*
 * Editor modelines  -  https://www.wireshark.org/tools/modelines.html
 *
 * Local variables:
 * c-basic-offset: 8
 * tab-width: 8
 * indent-tabs-mode: t
 * End:
 *
 * vi: set shiftwidth=8 tabstop=8 noexpandtab:
 * :indentSize=8:tabSize=8:noTabs=false:
 */
