Ejemplo n.º 1
0
/*
 * smb_com_trans2_find_next2
 *
 *  Client Request                     Value
 *  ================================== =================================
 *
 *  WordCount                          15
 *  SetupCount                         1
 *  Setup[0]                           TRANS2_FIND_NEXT2
 *
 *  Parameter Block Encoding           Description
 *  ================================== =================================
 *
 *  USHORT Sid;                        Search handle
 *  USHORT SearchCount;                Maximum number of entries to
 *                                      return
 *  USHORT InformationLevel;           Levels described in
 *                                      TRANS2_FIND_FIRST2 request
 *  ULONG ResumeKey;                   Value returned by previous find2
 *                                      call
 *  USHORT Flags;                      Additional information: bit set-
 *                                      0 - close search after this
 *                                      request
 *                                      1 - close search if end of search
 *                                      reached
 *                                      2 - return resume keys for each
 *                                      entry found
 *                                      3 - resume/continue from previous
 *                                      ending place
 *                                      4 - find with backup intent
 *  STRING FileName;                   Resume file name
 *
 * Sid is the value returned by a previous successful TRANS2_FIND_FIRST2
 * call.  If Bit3 of Flags is set, then FileName may be the NULL string,
 * since the search is continued from the previous TRANS2_FIND request.
 * Otherwise, FileName must not be more than 256 characters long.
 *
 *  Response Field                     Description
 *  ================================== =================================
 *
 *  USHORT SearchCount;                Number of entries returned
 *  USHORT EndOfSearch;                Was last entry returned?
 *  USHORT EaErrorOffset;              Offset into EA list if EA error
 *  USHORT LastNameOffset;             Offset into data to file name of
 *                                      last entry, if server needs it to
 *                                      resume search; else 0
 *  UCHAR Data[TotalDataCount]         Level dependent info about the
 *                                      matches found in the search
 *
 *
 * The last parameter in the request is a filename, which is a
 * null-terminated unicode string.
 *
 * smb_mbc_decodef(&xa->req_param_mb, "%www lwu", sr,
 *    &odid, &fa_maxcount, &fa_infolev, &cookie, &fa_fflag, &fname)
 *
 * The filename parameter is not currently decoded because we
 * expect a 2-byte null but Mac OS 10 clients send a 1-byte null,
 * which leads to a decode error.
 * Thus, we do not support resume by filename.  We treat a request
 * to resume by filename as SMB_FIND_CONTINUE_FROM_LAST.
 */
smb_sdrc_t
smb_com_trans2_find_next2(smb_request_t *sr, smb_xa_t *xa)
{
	int			count;
	uint16_t		odid;
	smb_odir_t		*od;
	smb_find_args_t		args;
	smb_odir_resume_t	odir_resume;

	bzero(&args, sizeof (args));
	bzero(&odir_resume, sizeof (odir_resume));

	if (!STYPE_ISDSK(sr->tid_tree->t_res_type)) {
		smbsr_error(sr, NT_STATUS_ACCESS_DENIED,
		    ERRDOS, ERROR_ACCESS_DENIED);
		return (SDRC_ERROR);
	}

	if (smb_mbc_decodef(&xa->req_param_mb, "%wwwlwu", sr,
	    &odid, &args.fa_maxcount, &args.fa_infolev,
	    &odir_resume.or_cookie, &args.fa_fflag,
	    &odir_resume.or_fname) != 0) {
		return (SDRC_ERROR);
	}

	if (args.fa_fflag & SMB_FIND_WITH_BACKUP_INTENT)
		sr->user_cr = smb_user_getprivcred(sr->uid_user);

	args.fa_maxdata =
	    smb_trans2_find_get_maxdata(sr, args.fa_infolev, args.fa_fflag);
	if (args.fa_maxdata == 0)
		return (SDRC_ERROR);

	od = smb_tree_lookup_odir(sr->tid_tree, odid);
	if (od == NULL) {
		smbsr_error(sr, NT_STATUS_INVALID_HANDLE,
		    ERRDOS, ERROR_INVALID_HANDLE);
		return (SDRC_ERROR);
	}

	/*
	 * Set the correct position in the directory.
	 *
	 * "Continue from last" is easy, but due to a history of
	 * buggy server implementations, most clients don't use
	 * that method.  The most widely used (and reliable) is
	 * resume by file name.  Unfortunately, that can't really
	 * be fully supported unless your file system stores all
	 * directory entries in some sorted order (like NTFS).
	 * We can partially support resume by name, where the only
	 * name we're ever asked to resume on is the same as the
	 * most recent we returned.  That's always what the client
	 * gives us as the resume name, so we can simply remember
	 * the last name/offset pair and use that to position on
	 * the following FindNext call.  In the unlikely event
	 * that the client asks to resume somewhere else, we'll
	 * use the numeric resume key, and hope the client gives
	 * correctly uses one of the resume keys we provided.
	 */
	if (args.fa_fflag & SMB_FIND_CONTINUE_FROM_LAST) {
		odir_resume.or_type = SMB_ODIR_RESUME_CONT;
	} else {
		odir_resume.or_type = SMB_ODIR_RESUME_FNAME;
	}
	smb_odir_resume_at(od, &odir_resume);

	count = smb_trans2_find_entries(sr, xa, od, &args);
	if (count == -1) {
		smb_odir_close(od);
		smb_odir_release(od);
		return (SDRC_ERROR);
	}

	if ((args.fa_fflag & SMB_FIND_CLOSE_AFTER_REQUEST) ||
	    (args.fa_eos && (args.fa_fflag & SMB_FIND_CLOSE_AT_EOS))) {
		smb_odir_close(od);
	} /* else leave odir open for trans2_find_next2 */

	smb_odir_release(od);

	(void) smb_mbc_encodef(&xa->rep_param_mb, "wwww",
	    count,	/* Search Count */
	    args.fa_eos, /* End Of Search */
	    0,		/* EA Error Offset */
	    args.fa_lno); /* Last Name Offset */

	return (SDRC_SUCCESS);
}
/*
 * smb_com_trans2_find_next2
 *
 *  Client Request                     Value
 *  ================================== =================================
 *
 *  WordCount                          15
 *  SetupCount                         1
 *  Setup[0]                           TRANS2_FIND_NEXT2
 *
 *  Parameter Block Encoding           Description
 *  ================================== =================================
 *
 *  USHORT Sid;                        Search handle
 *  USHORT SearchCount;                Maximum number of entries to
 *                                      return
 *  USHORT InformationLevel;           Levels described in
 *                                      TRANS2_FIND_FIRST2 request
 *  ULONG ResumeKey;                   Value returned by previous find2
 *                                      call
 *  USHORT Flags;                      Additional information: bit set-
 *                                      0 - close search after this
 *                                      request
 *                                      1 - close search if end of search
 *                                      reached
 *                                      2 - return resume keys for each
 *                                      entry found
 *                                      3 - resume/continue from previous
 *                                      ending place
 *                                      4 - find with backup intent
 *  STRING FileName;                   Resume file name
 *
 * Sid is the value returned by a previous successful TRANS2_FIND_FIRST2
 * call.  If Bit3 of Flags is set, then FileName may be the NULL string,
 * since the search is continued from the previous TRANS2_FIND request.
 * Otherwise, FileName must not be more than 256 characters long.
 *
 *  Response Field                     Description
 *  ================================== =================================
 *
 *  USHORT SearchCount;                Number of entries returned
 *  USHORT EndOfSearch;                Was last entry returned?
 *  USHORT EaErrorOffset;              Offset into EA list if EA error
 *  USHORT LastNameOffset;             Offset into data to file name of
 *                                      last entry, if server needs it to
 *                                      resume search; else 0
 *  UCHAR Data[TotalDataCount]         Level dependent info about the
 *                                      matches found in the search
 *
 *
 * The last parameter in the request is a filename, which is a
 * null-terminated unicode string.
 *
 * smb_mbc_decodef(&xa->req_param_mb, "%www lwu", sr,
 *    &odid, &fa_maxcount, &fa_infolev, &cookie, &fa_fflag, &fname)
 *
 * The filename parameter is not currently decoded because we
 * expect a 2-byte null but Mac OS 10 clients send a 1-byte null,
 * which leads to a decode error.
 * Thus, we do not support resume by filename.  We treat a request
 * to resume by filename as SMB_FIND_CONTINUE_FROM_LAST.
 */
smb_sdrc_t
smb_com_trans2_find_next2(smb_request_t *sr, smb_xa_t *xa)
{
	int			count;
	uint16_t		odid;
	uint32_t		cookie;
	smb_odir_t		*od;
	smb_find_args_t		args;
	boolean_t		eos;
	smb_odir_resume_t	odir_resume;

	bzero(&args, sizeof (smb_find_args_t));

	if (smb_mbc_decodef(&xa->req_param_mb, "%wwwlw", sr, &odid,
	    &args.fa_maxcount, &args.fa_infolev, &cookie, &args.fa_fflag)
	    != 0) {
		return (SDRC_ERROR);
	}

	/* continuation by filename not supported */
	if ((args.fa_fflag & SMB_FIND_CONTINUE_FROM_LAST) || (cookie == 0)) {
		odir_resume.or_type = SMB_ODIR_RESUME_IDX;
		odir_resume.or_idx = 0;
	} else {
		odir_resume.or_type = SMB_ODIR_RESUME_COOKIE;
		odir_resume.or_cookie = cookie;
	}

	if (args.fa_fflag & SMB_FIND_WITH_BACKUP_INTENT)
		sr->user_cr = smb_user_getprivcred(sr->uid_user);

	args.fa_maxdata =
	    smb_trans2_find_get_maxdata(sr, args.fa_infolev, args.fa_fflag);
	if (args.fa_maxdata == 0)
		return (SDRC_ERROR);

	od = smb_tree_lookup_odir(sr->tid_tree, odid);
	if (od == NULL) {
		smbsr_error(sr, NT_STATUS_INVALID_HANDLE,
		    ERRDOS, ERROR_INVALID_HANDLE);
		return (SDRC_ERROR);
	}
	smb_odir_resume_at(od, &odir_resume);
	count = smb_trans2_find_entries(sr, xa, od, &args, &eos);

	if (count == -1) {
		smb_odir_close(od);
		smb_odir_release(od);
		return (SDRC_ERROR);
	}

	if ((args.fa_fflag & SMB_FIND_CLOSE_AFTER_REQUEST) ||
	    (eos && (args.fa_fflag & SMB_FIND_CLOSE_AT_EOS))) {
		smb_odir_close(od);
	} /* else leave odir open for trans2_find_next2 */

	smb_odir_release(od);
	(void) smb_mbc_encodef(&xa->rep_param_mb, "wwww",
	    count, (eos) ? 1 : 0, 0, 0);

	return (SDRC_SUCCESS);
}
Ejemplo n.º 3
0
/*
 * smb_com_trans2_find_first2
 *
 *  Client Request                Value
 *  ============================  ==================================
 *
 *  UCHAR  WordCount              15
 *  UCHAR  TotalDataCount         Total size of extended attribute list
 *  UCHAR  SetupCount             1
 *  UCHAR  Setup[0]               TRANS2_FIND_FIRST2
 *
 *  Parameter Block Encoding      Description
 *  ============================  ==================================
 *  USHORT SearchAttributes;
 *  USHORT SearchCount;           Maximum number of entries to return
 *  USHORT Flags;                 Additional information:
 *                                Bit 0 - close search after this request
 *                                Bit 1 - close search if end of search
 *                                reached
 *                                Bit 2 - return resume keys for each
 *                                entry found
 *                                Bit 3 - continue search from previous
 *                                ending place
 *                                Bit 4 - find with backup intent
 *  USHORT InformationLevel;      See below
 *  ULONG SearchStorageType;
 *  STRING FileName;              Pattern for the search
 *  UCHAR Data[ TotalDataCount ]  FEAList if InformationLevel is
 *                                QUERY_EAS_FROM_LIST
 *
 *  Response Parameter Block      Description
 *  ============================  ==================================
 *
 *  USHORT Sid;                   Search handle
 *  USHORT SearchCount;           Number of entries returned
 *  USHORT EndOfSearch;           Was last entry returned?
 *  USHORT EaErrorOffset;         Offset into EA list if EA error
 *  USHORT LastNameOffset;        Offset into data to file name of last
 *                                entry, if server needs it to resume
 *                                search; else 0
 *  UCHAR Data[ TotalDataCount ]  Level dependent info about the matches
 *                                found in the search
 */
smb_sdrc_t
smb_com_trans2_find_first2(smb_request_t *sr, smb_xa_t *xa)
{
	int		count;
	uint16_t	sattr, odid;
	smb_pathname_t	*pn;
	smb_odir_t	*od;
	smb_find_args_t	args;
	uint32_t	odir_flags = 0;

	bzero(&args, sizeof (smb_find_args_t));

	if (!STYPE_ISDSK(sr->tid_tree->t_res_type)) {
		smbsr_error(sr, NT_STATUS_ACCESS_DENIED,
		    ERRDOS, ERROR_ACCESS_DENIED);
		return (SDRC_ERROR);
	}

	pn = &sr->arg.dirop.fqi.fq_path;

	if (smb_mbc_decodef(&xa->req_param_mb, "%wwww4.u", sr, &sattr,
	    &args.fa_maxcount, &args.fa_fflag, &args.fa_infolev,
	    &pn->pn_path) != 0) {
		return (SDRC_ERROR);
	}

	smb_pathname_init(sr, pn, pn->pn_path);
	if (!smb_pathname_validate(sr, pn))
		return (-1);

	if (smb_is_stream_name(pn->pn_path)) {
		smbsr_error(sr, NT_STATUS_OBJECT_NAME_INVALID,
		    ERRDOS, ERROR_INVALID_NAME);
		return (SDRC_ERROR);
	}

	if (args.fa_fflag & SMB_FIND_WITH_BACKUP_INTENT) {
		sr->user_cr = smb_user_getprivcred(sr->uid_user);
		odir_flags = SMB_ODIR_OPENF_BACKUP_INTENT;
	}

	args.fa_maxdata =
	    smb_trans2_find_get_maxdata(sr, args.fa_infolev, args.fa_fflag);
	if (args.fa_maxdata == 0)
		return (SDRC_ERROR);

	odid = smb_odir_open(sr, pn->pn_path, sattr, odir_flags);
	if (odid == 0) {
		if (sr->smb_error.status == NT_STATUS_OBJECT_PATH_NOT_FOUND) {
			smbsr_error(sr, NT_STATUS_OBJECT_NAME_NOT_FOUND,
			    ERRDOS, ERROR_FILE_NOT_FOUND);
		}
		return (SDRC_ERROR);
	}

	od = smb_tree_lookup_odir(sr->tid_tree, odid);
	if (od == NULL)
		return (SDRC_ERROR);

	count = smb_trans2_find_entries(sr, xa, od, &args);

	if (count == -1) {
		smb_odir_close(od);
		smb_odir_release(od);
		return (SDRC_ERROR);
	}

	if (count == 0) {
		smb_odir_close(od);
		smb_odir_release(od);
		smbsr_errno(sr, ENOENT);
		return (SDRC_ERROR);
	}

	if ((args.fa_fflag & SMB_FIND_CLOSE_AFTER_REQUEST) ||
	    (args.fa_eos && (args.fa_fflag & SMB_FIND_CLOSE_AT_EOS))) {
		smb_odir_close(od);
	} /* else leave odir open for trans2_find_next2 */

	smb_odir_release(od);

	(void) smb_mbc_encodef(&xa->rep_param_mb, "wwwww",
	    odid,	/* Search ID */
	    count,	/* Search Count */
	    args.fa_eos, /* End Of Search */
	    0,		/* EA Error Offset */
	    args.fa_lno); /* Last Name Offset */

	return (SDRC_SUCCESS);
}
/*
 * smb_com_trans2_find_first2
 *
 *  Client Request                Value
 *  ============================  ==================================
 *
 *  UCHAR  WordCount              15
 *  UCHAR  TotalDataCount         Total size of extended attribute list
 *  UCHAR  SetupCount             1
 *  UCHAR  Setup[0]               TRANS2_FIND_FIRST2
 *
 *  Parameter Block Encoding      Description
 *  ============================  ==================================
 *  USHORT SearchAttributes;
 *  USHORT SearchCount;           Maximum number of entries to return
 *  USHORT Flags;                 Additional information:
 *                                Bit 0 - close search after this request
 *                                Bit 1 - close search if end of search
 *                                reached
 *                                Bit 2 - return resume keys for each
 *                                entry found
 *                                Bit 3 - continue search from previous
 *                                ending place
 *                                Bit 4 - find with backup intent
 *  USHORT InformationLevel;      See below
 *  ULONG SearchStorageType;
 *  STRING FileName;              Pattern for the search
 *  UCHAR Data[ TotalDataCount ]  FEAList if InformationLevel is
 *                                QUERY_EAS_FROM_LIST
 *
 *  Response Parameter Block      Description
 *  ============================  ==================================
 *
 *  USHORT Sid;                   Search handle
 *  USHORT SearchCount;           Number of entries returned
 *  USHORT EndOfSearch;           Was last entry returned?
 *  USHORT EaErrorOffset;         Offset into EA list if EA error
 *  USHORT LastNameOffset;        Offset into data to file name of last
 *                                entry, if server needs it to resume
 *                                search; else 0
 *  UCHAR Data[ TotalDataCount ]  Level dependent info about the matches
 *                                found in the search
 */
smb_sdrc_t
smb_com_trans2_find_first2(smb_request_t *sr, smb_xa_t *xa)
{
	int		count;
	uint16_t	sattr, odid;
	char		*path;
	smb_odir_t	*od;
	smb_find_args_t	args;
	boolean_t	eos;
	uint32_t	odir_flags = 0;

	bzero(&args, sizeof (smb_find_args_t));

	if (!STYPE_ISDSK(sr->tid_tree->t_res_type)) {
		smbsr_error(sr, NT_STATUS_ACCESS_DENIED,
		    ERRDOS, ERROR_ACCESS_DENIED);
		return (SDRC_ERROR);
	}

	if (smb_mbc_decodef(&xa->req_param_mb, "%wwww4.u", sr, &sattr,
	    &args.fa_maxcount, &args.fa_fflag, &args.fa_infolev, &path) != 0) {
		return (SDRC_ERROR);
	}

	if (smb_is_stream_name(path)) {
		smbsr_error(sr, NT_STATUS_OBJECT_NAME_INVALID,
		    ERRDOS, ERROR_INVALID_NAME);
		return (SDRC_ERROR);
	}

	if (args.fa_fflag & SMB_FIND_WITH_BACKUP_INTENT) {
		sr->user_cr = smb_user_getprivcred(sr->uid_user);
		odir_flags = SMB_ODIR_OPENF_BACKUP_INTENT;
	}

	args.fa_maxdata =
	    smb_trans2_find_get_maxdata(sr, args.fa_infolev, args.fa_fflag);
	if (args.fa_maxdata == 0)
		return (SDRC_ERROR);

	if (sr->smb_flg2 & SMB_FLAGS2_UNICODE)
		(void) smb_convert_wildcards(path);

	odid = smb_odir_open(sr, path, sattr, odir_flags);
	if (odid == 0)
		return (SDRC_ERROR);

	od = smb_tree_lookup_odir(sr->tid_tree, odid);
	if (od == NULL)
		return (SDRC_ERROR);
	count = smb_trans2_find_entries(sr, xa, od, &args, &eos);

	if (count == -1) {
		smb_odir_close(od);
		smb_odir_release(od);
		return (SDRC_ERROR);
	}

	if (count == 0) {
		smb_odir_close(od);
		smb_odir_release(od);
		smbsr_errno(sr, ENOENT);
		return (SDRC_ERROR);
	}

	if ((args.fa_fflag & SMB_FIND_CLOSE_AFTER_REQUEST) ||
	    (eos && (args.fa_fflag & SMB_FIND_CLOSE_AT_EOS))) {
		smb_odir_close(od);
	} /* else leave odir open for trans2_find_next2 */

	smb_odir_release(od);

	(void) smb_mbc_encodef(&xa->rep_param_mb, "wwwww",
	    odid, count, (eos) ? 1 : 0, 0, 0);

	return (SDRC_SUCCESS);
}