Documentation/TODO

   1
   2  Note that items with (!) have high priority.
   3
   4 col
   5 ---
   6   - use unsigned sizes for columns and lines
   7   - check for limits to avoid segfaults
   8   - make it more robust
   9   https://github.com/karelzak/util-linux/issues/749
  10
  11 cal
  12 ---
  13    - add option to print calendar in vertical way
  14      https://github.com/karelzak/util-linux/issues/604
  15    - support another --reforms, see for example freebsd version
  16      https://github.com/freebsd/freebsd/blob/master/usr.bin/ncal/ncal.c#L72
  17
  18 script
  19 ------
  20    - introduce a new timing file format to record information about multiple
  21      streams (stdout, stdin) and events (signals)
  22
  23    - add support for stdin loggin -- separated log file with raw input and timing
  24      records in the timing file
  25
  26    - for example timing file format:
  27
  28              <type> <timestamp> [<offset> | <signal> ...]
  29
  30              O 0.001296 256
  31              S 0.001297 SIGWINCH: columns=50, lines=20
  32              I 0.000010 10
  33
  34      O - output, S - signal, I - input
  35
  36
  37 lscpu
  38 -----
  39   - read cpuid and uname information from file if --sysroot is specified, then
  40     we can prepare regression tests completely independent on hw and architecture.
  41
  42 lsblk
  43 -----
  44   - currently it does not show mountpoint for all devices in btrfs RAID. It's because
  45     /proc/#/mountinfo contains reference to the one device only. Maybe we can add some
  46     btrfs specific code to provide a better output for FS based stacks. Not sure.
  47     https://bugzilla.redhat.com/show_bug.cgi?id=1084453
  48
  49 nsenter(1)
  50 ----------
  51  - read the default UID and GID from the target process.
  52    http://thread.gmane.org/gmane.linux.utilities.util-linux-ng/9553/focus=9585
  53
  54 hwclock
  55 ------
  56  - use /var/lib/hwclock/drift to store hw-clock drift numbers.
  57  - use /etc/adjtime as read-only for UTC/LOCAL information only
  58  - the /var/lib/hwclock/drift should be implemented backwardly compatible,
  59    it means use the file only if exists, otherwise follow /etc/adjtime
  60
  61 bash completion
  62 ---------------
  63 - Optional argument handling requires user to press backspace to get
  64   argument completion.
  65 - Comma separated value, e.g., --output 'value1,value2', are not
  66   completed for users.
  67
  68 libmount (mount/umount)
  69 -----------------------
  70
  71  - add --onlyonce to force mount(8) to check if mountpoint is already used. Now
  72    "already mounted" detection is used for --all only. The problem is if you
  73    call "mount <mountpoint>" more than once for in fstab defined tmpfs (or network
  74    filesystem etc.). In this case kernel does not return EBUSY, but a new instance
  75    of the FS is created. https://github.com/karelzak/util-linux/issues/448
  76    (... just idea, maybe wrong idea)
  77
  78  - support CAP_SYS_ADMIN; for mount(2) syscall the CAP_SYS_ADMIN is good
  79    enough. Unfortunately, mount(8) does more things like check for filesystem
  80    type (but it's usually done by udev, so root perms are unnecessary), create
  81    loop devices, write to /run/mount/utab or /etc/mtab, etc.
  82
  83    It would be nice to improve libmount to check for CAP_SYS_ADMIN if suid not
  84    set and allow to use it for simple tasks where no another operation is
  85    necessary.
  86
  87 partx
  88 -----
  89
  90  - support mapping by device-mapper if argv[0] is "kpartx" or --dm option is used.
  91
  92
  93 getopt
  94 ------
  95   It would be great if getopt could optionally ignore unknown options.
  96   Currently, it outputs -- for every option it doesn't recognize but leaving the
  97   option as it is could beneficial wrapper scripts which could then pass the
  98   options they don't recognize as they are to the command they are wrapping.
  99   https://github.com/karelzak/util-linux/issues/701
 100
 101 docs
 102 ----
 103
 104  - (!) use something better than gtk-doc for libmount and libblkid (doxyden?)
 105
 106  - (!) add API documentation to libuuid
 107
 108
 109 login-utils:
 110 -----------
 111
 112   - consolidate newgrp(1)
 113     * we have "su --group/--supp-group" to switch between groups, newgrp(1) in
 114       util-linux and shadow-utils (and sg(1) alias in shadow-utils)
 115     * the unique functionality provided by newgpr(1) is support for group
 116       passwords [/etc/gshadow] -- do we really need this functionality?
 117     * maybe we can mark group-passwords as deprecated, and replace sg(1) and
 118       newgpr(1) with su(1) code. The another way is to ask for group password in
 119       su --group too.
 120     * note that shadow-utils newgpr(1) provides support for syslog and audit log.
 121
 122
 123 libblkid
 124 --------
 125
 126  - (!) add support for BitLocker Drive Encryption
 127    https://github.com/karelzak/util-linux/issues/617
 128    https://github.com/libyal/libbde/blob/master/documentation/BitLocker%20Drive%20Encryption%20(BDE)%20format.asciidoc
 129
 130  - (!) add support for dasd PT (used for example on s390)
 131
 132 libfdisk
 133 --------
 134
 135  - add support for Apple Partition Map (see libblkid/src/partitions/mac.c)
 136    http://en.wikipedia.org/wiki/Apple_Partition_Map
 137
 138
 139 misc
 140 ----
 141
 142  - add mllockall() and SCHED_FIFO to hwclock,
 143    see http://lkml.org/lkml/2008/10/12/132
 144
 145
 146 ---------------
 147 exotic requests
 148 ---------------
 149
 150  - add SELinux security contexts support to the 'ipcs' utility
 151    http://bugzilla.redhat.com/show_bug.cgi?id=225342
 152
 153    Would be great to list the current system IPC Objects with their respective
 154    security labels (where allowed) with something like 'ipcs -Z' - following the
 155    way other tools reports those.
 156
 157