Exemplo n.º 1
0
int encode_attribsEx(JCR *jcr, char *attribsEx, FF_PKT *ff_pkt)
{
   char *p = attribsEx;
   WIN32_FILE_ATTRIBUTE_DATA atts;
   ULARGE_INTEGER li;

   attribsEx[0] = 0;                  /* no extended attributes */

   if (jcr->cmd_plugin || ff_pkt->type == FT_DELETED) {
      return STREAM_UNIX_ATTRIBUTES;
   }

   unix_name_to_win32(&ff_pkt->sys_fname, ff_pkt->fname);

   /** try unicode version */
   if (p_GetFileAttributesExW)  {
      POOLMEM* pwszBuf = get_pool_memory(PM_FNAME);   
      make_win32_path_UTF8_2_wchar(&pwszBuf, ff_pkt->fname);

      BOOL b=p_GetFileAttributesExW((LPCWSTR)pwszBuf, GetFileExInfoStandard, 
                                    (LPVOID)&atts);
      free_pool_memory(pwszBuf);

      if (!b) {
         win_error(jcr, "GetFileAttributesExW:", ff_pkt->sys_fname);
         return STREAM_UNIX_ATTRIBUTES;
      }
   }
   else {
      if (!p_GetFileAttributesExA)
         return STREAM_UNIX_ATTRIBUTES;      

      if (!p_GetFileAttributesExA(ff_pkt->sys_fname, GetFileExInfoStandard,
                              (LPVOID)&atts)) {
         win_error(jcr, "GetFileAttributesExA:", ff_pkt->sys_fname);
         return STREAM_UNIX_ATTRIBUTES;
      }
   }

   p += to_base64((uint64_t)atts.dwFileAttributes, p);
   *p++ = ' ';                        /* separate fields with a space */
   li.LowPart = atts.ftCreationTime.dwLowDateTime;
   li.HighPart = atts.ftCreationTime.dwHighDateTime;
   p += to_base64((uint64_t)li.QuadPart, p);
   *p++ = ' ';
   li.LowPart = atts.ftLastAccessTime.dwLowDateTime;
   li.HighPart = atts.ftLastAccessTime.dwHighDateTime;
   p += to_base64((uint64_t)li.QuadPart, p);
   *p++ = ' ';
   li.LowPart = atts.ftLastWriteTime.dwLowDateTime;
   li.HighPart = atts.ftLastWriteTime.dwHighDateTime;
   p += to_base64((uint64_t)li.QuadPart, p);
   *p++ = ' ';
   p += to_base64((uint64_t)atts.nFileSizeHigh, p);
   *p++ = ' ';
   p += to_base64((uint64_t)atts.nFileSizeLow, p);
   *p = 0;
   return STREAM_UNIX_ATTRIBUTES_EX;
}
Exemplo n.º 2
0
static int do_stat(const char *file, struct stat *sb, uint64_t *winattr)
{
	WIN32_FILE_ATTRIBUTE_DATA data;
	errno=0;

	memset(sb, 0, sizeof(*sb));
	memset(winattr, 0, sizeof(*winattr));

	if(p_GetFileAttributesExW)
	{
		// Dynamically allocate enough space for UCS2 filename.
		char *pwszBuf=sm_get_pool_memory(PM_FNAME);
		make_win32_path_UTF8_2_wchar(&pwszBuf, file);

		BOOL b=p_GetFileAttributesExW((LPCWSTR)pwszBuf,
			GetFileExInfoStandard, &data);
		sm_free_pool_memory(pwszBuf);

		if(!b) return stat2(file, sb, winattr);

	}
	else if(p_GetFileAttributesExA)
	{
		if(!p_GetFileAttributesExA(file, GetFileExInfoStandard, &data))
			return stat2(file, sb, winattr);
	}
	else
		return stat2(file, sb, winattr);

	*winattr=(int64_t)data.dwFileAttributes;

	/* Graham says: all the following stuff seems rather complicated.
	   It is probably not all needed anymore, since I have added *winattr
	   above, which bacula did not do.
	   One reason for keeping it is that some of the values get converted to
	   unix-style permissions that show up in the long list functionality.
	   I think I would prefer to remove it all though.
	 */
	sb->st_mode = 0777; // Start with everything.
	if(data.dwFileAttributes & FILE_ATTRIBUTE_READONLY)
		sb->st_mode &= ~(S_IRUSR|S_IRGRP|S_IROTH);
	if(data.dwFileAttributes & FILE_ATTRIBUTE_SYSTEM)
		sb->st_mode &= ~S_IRWXO; // Remove everything for other.
	if(data.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN)
		sb->st_mode |= S_ISVTX; // use sticky bit -> hidden.
	if(data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
		sb->st_mode |= S_IFDIR;
	else
		sb->st_mode |= S_IFREG;

	// Use st_rdev to store reparse attribute.
	sb->st_rdev=(data.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT)?1:0; 

	sb->st_nlink=1;
	sb->st_size=data.nFileSizeHigh;
	sb->st_size<<=32;
	sb->st_size|=data.nFileSizeLow;
	sb->st_blksize=4096;
	sb->st_blocks=(uint32_t)(sb->st_size + 4095)/4096;
	sb->st_atime=cvt_ftime_to_utime(data.ftLastAccessTime);
	sb->st_mtime=cvt_ftime_to_utime(data.ftLastWriteTime);
	sb->st_ctime=cvt_ftime_to_utime(data.ftCreationTime);

	/* If we are not at the root, then to distinguish a reparse 
	   point from a mount point, we must call FindFirstFile() to
	   get the WIN32_FIND_DATA, which has the bit that indicates
	   that this directory is a mount point -- aren't Win32 APIs
	   wonderful? (sarcasm).  The code exists in the statDir
	   subroutine.  */
	if(data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY
	  && file[1]==':' && file[2])
		statDir(file, sb, winattr);
	return 0;
}
Exemplo n.º 3
0
/*
 * Restore all file attributes like owner, mode and file times.
 */
static inline bool restore_file_attributes(JCR *jcr, ATTR *attr, BFILE *ofd)
{
    bool ok = true;
    bool suppress_errors;
#if defined(HAVE_FCHOWN) || defined(HAVE_FCHMOD) || defined(HAVE_FUTIMES) || defined(FUTIMENS)
    bool file_is_open;

    /*
     * Save if we are working on an open file.
     */
    file_is_open = is_bopen(ofd);
#endif

    /*
     * See if we want to print errors.
     */
    suppress_errors = (debug_level >= 100 || my_uid != 0);

    /*
     * Restore owner and group.
     */
#ifdef HAVE_FCHOWN
    if (file_is_open) {
        if (fchown(ofd->fid, attr->statp.st_uid, attr->statp.st_gid) < 0 && !suppress_errors) {
            berrno be;

            Jmsg2(jcr, M_ERROR, 0, _("Unable to set file owner %s: ERR=%s\n"), attr->ofname, be.bstrerror());
            ok = false;
        }
    } else {
#else
    {
#endif
        if (lchown(attr->ofname, attr->statp.st_uid, attr->statp.st_gid) < 0 && !suppress_errors) {
            berrno be;

            Jmsg2(jcr, M_ERROR, 0, _("Unable to set file owner %s: ERR=%s\n"), attr->ofname, be.bstrerror());
            ok = false;
        }
    }

    /*
     * Restore filemode.
     */
#ifdef HAVE_FCHMOD
    if (file_is_open) {
        if (fchmod(ofd->fid, attr->statp.st_mode) < 0 && !suppress_errors) {
            berrno be;

            Jmsg2(jcr, M_ERROR, 0, _("Unable to set file modes %s: ERR=%s\n"), attr->ofname, be.bstrerror());
            ok = false;
        }
    } else {
#else
    {
#endif
#if defined(HAVE_WIN32)
        if (win32_chmod(attr->ofname, attr->statp.st_mode, attr->statp.st_rdev) < 0 && !suppress_errors) {
#else
        if (lchmod(attr->ofname, attr->statp.st_mode) < 0 && !suppress_errors) {
#endif
            berrno be;

            Jmsg2(jcr, M_ERROR, 0, _("Unable to set file modes %s: ERR=%s\n"), attr->ofname, be.bstrerror());
            ok = false;
        }
    }

    /*
     * Reset file times.
     */
#if defined(HAVE_FUTIMES)
    if (file_is_open) {
        struct timeval restore_times[2];

        restore_times[0].tv_sec = attr->statp.st_atime;
        restore_times[0].tv_usec = 0;
        restore_times[1].tv_sec = attr->statp.st_mtime;
        restore_times[1].tv_usec = 0;

        if (futimes(ofd->fid, restore_times) < 0 && !suppress_errors) {
            berrno be;

            Jmsg2(jcr, M_ERROR, 0, _("Unable to set file times %s: ERR=%s\n"), attr->ofname, be.bstrerror());
            ok = false;
        }
    } else {
#elif defined(HAVE_FUTIMENS)
    if (file_is_open) {
        struct timespec restore_times[2];

        restore_times[0].tv_sec = attr->statp.st_atime;
        restore_times[0].tv_nsec = 0;
        restore_times[1].tv_sec = attr->statp.st_mtime;
        restore_times[1].tv_nsec = 0;

        if (futimens(ofd->fid, restore_times) < 0 && !suppress_errors) {
            berrno be;

            Jmsg2(jcr, M_ERROR, 0, _("Unable to set file times %s: ERR=%s\n"), attr->ofname, be.bstrerror());
            ok = false;
        }
    } else {
#else
    {
#endif
#if defined(HAVE_LUTIMES)
        struct timeval restore_times[2];

        restore_times[0].tv_sec = attr->statp.st_atime;
        restore_times[0].tv_usec = 0;
        restore_times[1].tv_sec = attr->statp.st_mtime;
        restore_times[1].tv_usec = 0;

        if (lutimes(attr->ofname, restore_times) < 0 && !suppress_errors) {
            berrno be;

            Jmsg2(jcr, M_ERROR, 0, _("Unable to set file times %s: ERR=%s\n"), attr->ofname, be.bstrerror());
            ok = false;
        }
#elif defined(HAVE_UTIMES)
        struct timeval restore_times[2];

        restore_times[0].tv_sec = attr->statp.st_atime;
        restore_times[0].tv_usec = 0;
        restore_times[1].tv_sec = attr->statp.st_mtime;
        restore_times[1].tv_usec = 0;

        if (utimes(attr->ofname, restore_times) < 0 && !suppress_errors) {
            berrno be;

            Jmsg2(jcr, M_ERROR, 0, _("Unable to set file times %s: ERR=%s\n"), attr->ofname, be.bstrerror());
            ok = false;
        }
#else
        struct utimbuf restore_times;

        restore_times.actime = attr->statp.st_atime;
        restore_times.modtime = attr->statp.st_mtime;

        if (utime(attr->ofname, &restore_times) < 0 && !suppress_errors) {
            berrno be;

            Jmsg2(jcr, M_ERROR, 0, _("Unable to set file times %s: ERR=%s\n"), attr->ofname, be.bstrerror());
            ok = false;
        }
#endif /* HAVE_LUTIMES */
    }

    return ok;
}

/**
 * Set file modes, permissions and times
 *
 *  fname is the original filename
 *  ofile is the output filename (may be in a different directory)
 *
 * Returns:  true  on success
 *           false on failure
 */
bool set_attributes(JCR *jcr, ATTR *attr, BFILE *ofd)
{
    mode_t old_mask;
    bool ok = true;
    bool suppress_errors;

    if (uid_set) {
        my_uid = getuid();
        my_gid = getgid();
        uid_set = true;
    }

    /*
     * See if we want to print errors.
     */
    suppress_errors = (debug_level >= 100 || my_uid != 0);

#if defined(HAVE_WIN32)
    if (attr->stream == STREAM_UNIX_ATTRIBUTES_EX &&
            set_win32_attributes(jcr, attr, ofd)) {
        if (is_bopen(ofd)) {
            bclose(ofd);
        }
        pm_strcpy(attr->ofname, "*None*");
        return true;
    }

    if (attr->data_stream == STREAM_WIN32_DATA ||
            attr->data_stream == STREAM_WIN32_GZIP_DATA ||
            attr->data_stream == STREAM_WIN32_COMPRESSED_DATA) {
        if (is_bopen(ofd)) {
            bclose(ofd);
        }
        pm_strcpy(attr->ofname, "*None*");
        return true;
    }

    /**
     * If Windows stuff failed, e.g. attempt to restore Unix file to Windows, simply fall
     * through and we will do it the universal way.
     */
#endif

    old_mask = umask(0);
    if (is_bopen(ofd)) {
        boffset_t fsize;
        char ec1[50], ec2[50];

        fsize = blseek(ofd, 0, SEEK_END);
        if (attr->type == FT_REG &&
                fsize > 0 &&
                attr->statp.st_size > 0 &&
                fsize != (boffset_t)attr->statp.st_size) {
            Jmsg3(jcr, M_ERROR, 0, _("File size of restored file %s not correct. Original %s, restored %s.\n"),
                  attr->ofname, edit_uint64(attr->statp.st_size, ec1), edit_uint64(fsize, ec2));
        }
    } else {
        struct stat st;
        char ec1[50], ec2[50];

        if (lstat(attr->ofname, &st) == 0) {
            if (attr->type == FT_REG &&
                    st.st_size > 0 &&
                    attr->statp.st_size > 0 &&
                    st.st_size != attr->statp.st_size) {
                Jmsg3(jcr, M_ERROR, 0, _("File size of restored file %s not correct. Original %s, restored %s.\n"),
                      attr->ofname, edit_uint64(attr->statp.st_size, ec1), edit_uint64(st.st_size, ec2));
            }
        }
    }

    /**
     * We do not restore sockets, so skip trying to restore their attributes.
     */
    if (attr->type == FT_SPEC && S_ISSOCK(attr->statp.st_mode)) {
        goto bail_out;
    }

    /* ***FIXME**** optimize -- don't do if already correct */
    /**
     * For link, change owner of link using lchown, but don't try to do a chmod as that will update the file behind it.
     */
    if (attr->type == FT_LNK) {
        /*
         * Change owner of link, not of real file
         */
        if (lchown(attr->ofname, attr->statp.st_uid, attr->statp.st_gid) < 0 && !suppress_errors) {
            berrno be;

            Jmsg2(jcr, M_ERROR, 0, _("Unable to set file owner %s: ERR=%s\n"), attr->ofname, be.bstrerror());
            ok = false;
        }

#ifdef HAVE_LCHMOD
        if (lchmod(attr->ofname, attr->statp.st_mode) < 0 && !suppress_errors) {
            berrno be;

            Jmsg2(jcr, M_ERROR, 0, _("Unable to set file modes %s: ERR=%s\n"), attr->ofname, be.bstrerror());
            ok = false;
        }
#endif
    } else {
        if (!ofd->cmd_plugin) {
            ok = restore_file_attributes(jcr, attr, ofd);

#ifdef HAVE_CHFLAGS
            /**
             * FreeBSD user flags
             *
             * Note, this should really be done before the utime() above,
             * but if the immutable bit is set, it will make the utimes()
             * fail.
             */
            if (chflags(attr->ofname, attr->statp.st_flags) < 0 && !suppress_errors) {
                berrno be;
                Jmsg2(jcr, M_ERROR, 0, _("Unable to set file flags %s: ERR=%s\n"), attr->ofname, be.bstrerror());
                ok = false;
            }
#endif
        }
    }

bail_out:
    if (is_bopen(ofd)) {
        bclose(ofd);
    }

    pm_strcpy(attr->ofname, "*None*");
    umask(old_mask);

    return ok;
}

#if !defined(HAVE_WIN32)
/*=============================================================*/
/*                                                             */
/*                 * * *  U n i x * * * *                      */
/*                                                             */
/*=============================================================*/

/**
 * It is possible to piggyback additional data e.g. ACLs on
 *   the encode_stat() data by returning the extended attributes
 *   here.  They must be "self-contained" (i.e. you keep track
 *   of your own length), and they must be in ASCII string
 *   format. Using this feature is not recommended.
 * The code below shows how to return nothing.  See the Win32
 *   code below for returning something in the attributes.
 */
int encode_attribsEx(JCR *jcr, char *attribsEx, FF_PKT *ff_pkt)
{
#ifdef HAVE_DARWIN_OS
    /**
     * We save the Mac resource fork length so that on a
     * restore, we can be sure we put back the whole resource.
     */
    char *p;

    *attribsEx = 0;                 /* no extended attributes (yet) */
    if (jcr->cmd_plugin || ff_pkt->type == FT_DELETED) {
        return STREAM_UNIX_ATTRIBUTES;
    }
    p = attribsEx;
    if (bit_is_set(FO_HFSPLUS, ff_pkt->flags)) {
        p += to_base64((uint64_t)(ff_pkt->hfsinfo.rsrclength), p);
    }
    *p = 0;
#else
    *attribsEx = 0;                    /* no extended attributes */
#endif
    return STREAM_UNIX_ATTRIBUTES;
}
#else
/*=============================================================*/
/*                                                             */
/*                 * * *  W i n 3 2 * * * *                    */
/*                                                             */
/*=============================================================*/
int encode_attribsEx(JCR *jcr, char *attribsEx, FF_PKT *ff_pkt)
{
    char *p = attribsEx;
    WIN32_FILE_ATTRIBUTE_DATA atts;
    ULARGE_INTEGER li;

    attribsEx[0] = 0;                  /* no extended attributes */

    if (jcr->cmd_plugin || ff_pkt->type == FT_DELETED) {
        return STREAM_UNIX_ATTRIBUTES;
    }

    unix_name_to_win32(ff_pkt->sys_fname, ff_pkt->fname);
    if (p_GetFileAttributesExW)  {
        /**
         * Try unicode version
         */
        POOLMEM* pwszBuf = get_pool_memory(PM_FNAME);
        make_win32_path_UTF8_2_wchar(pwszBuf, ff_pkt->fname);

        BOOL b=p_GetFileAttributesExW((LPCWSTR)pwszBuf, GetFileExInfoStandard,
                                      (LPVOID)&atts);
        free_pool_memory(pwszBuf);

        if (!b) {
            win_error(jcr, "GetFileAttributesExW:", ff_pkt->sys_fname);
            return STREAM_UNIX_ATTRIBUTES;
        }
    } else {
        if (!p_GetFileAttributesExA)
            return STREAM_UNIX_ATTRIBUTES;

        if (!p_GetFileAttributesExA(ff_pkt->sys_fname, GetFileExInfoStandard,
                                    (LPVOID)&atts)) {
            win_error(jcr, "GetFileAttributesExA:", ff_pkt->sys_fname);
            return STREAM_UNIX_ATTRIBUTES;
        }
    }

    /*
     * Instead of using the current dwFileAttributes use the
     * ff_pkt->statp.st_rdev which contains the actual fileattributes we
     * want to save for this file.
     */
    atts.dwFileAttributes = ff_pkt->statp.st_rdev;

    p += to_base64((uint64_t)atts.dwFileAttributes, p);
    *p++ = ' ';                        /* separate fields with a space */
    li.LowPart = atts.ftCreationTime.dwLowDateTime;
    li.HighPart = atts.ftCreationTime.dwHighDateTime;
    p += to_base64((uint64_t)li.QuadPart, p);
    *p++ = ' ';
    li.LowPart = atts.ftLastAccessTime.dwLowDateTime;
    li.HighPart = atts.ftLastAccessTime.dwHighDateTime;
    p += to_base64((uint64_t)li.QuadPart, p);
    *p++ = ' ';
    li.LowPart = atts.ftLastWriteTime.dwLowDateTime;
    li.HighPart = atts.ftLastWriteTime.dwHighDateTime;
    p += to_base64((uint64_t)li.QuadPart, p);
    *p++ = ' ';
    p += to_base64((uint64_t)atts.nFileSizeHigh, p);
    *p++ = ' ';
    p += to_base64((uint64_t)atts.nFileSizeLow, p);
    *p = 0;

    return STREAM_UNIX_ATTRIBUTES_EX;
}