Documentation/TODO

   1
   2  Note that items with (!) have high priority.
   3
   4 script (lib/pty-session.c)
   5 --------------------------
   6   - (!) add #ifdefs and optional code for non-signalfd() systems
   7
   8 col
   9 ---
  10   - use unsigned sizes for columns and lines
  11   - check for limits to avoid segfaults
  12   - make it more robust
  13   https://github.com/karelzak/util-linux/issues/749
  14
  15 cal
  16 ---
  17    - add option to print calendar in vertical way
  18      https://github.com/karelzak/util-linux/issues/604
  19    - support another --reforms, see for example freebsd version
  20      https://github.com/freebsd/freebsd/blob/master/usr.bin/ncal/ncal.c#L72
  21
  22 lscpu
  23 -----
  24   - read cpuid and uname information from file if --sysroot is specified, then
  25     we can prepare regression tests completely independent on hw and architecture.
  26
  27 lsblk
  28 -----
  29   - currently it does not show mountpoint for all devices in btrfs RAID. It's because
  30     /proc/#/mountinfo contains reference to the one device only. Maybe we can add some
  31     btrfs specific code to provide a better output for FS based stacks. Not sure.
  32     https://bugzilla.redhat.com/show_bug.cgi?id=1084453
  33
  34 nsenter(1)
  35 ----------
  36  - read the default UID and GID from the target process.
  37    http://thread.gmane.org/gmane.linux.utilities.util-linux-ng/9553/focus=9585
  38
  39 hwclock
  40 ------
  41  - use /var/lib/hwclock/drift to store hw-clock drift numbers.
  42  - use /etc/adjtime as read-only for UTC/LOCAL information only
  43  - the /var/lib/hwclock/drift should be implemented backwardly compatible,
  44    it means use the file only if exists, otherwise follow /etc/adjtime
  45
  46 bash completion
  47 ---------------
  48 - Optional argument handling requires user to press backspace to get
  49   argument completion.
  50 - Comma separated value, e.g., --output 'value1,value2', are not
  51   completed for users.
  52
  53 libmount (mount/umount)
  54 -----------------------
  55
  56  - add --onlyonce to force mount(8) to check if mountpoint is already used. Now
  57    "already mounted" detection is used for --all only. The problem is if you
  58    call "mount <mountpoint>" more than once for in fstab defined tmpfs (or network
  59    filesystem etc.). In this case kernel does not return EBUSY, but a new instance
  60    of the FS is created. https://github.com/karelzak/util-linux/issues/448
  61    (... just idea, maybe wrong idea)
  62
  63  - support CAP_SYS_ADMIN; for mount(2) syscall the CAP_SYS_ADMIN is good
  64    enough. Unfortunately, mount(8) does more things like check for filesystem
  65    type (but it's usually done by udev, so root perms are unnecessary), create
  66    loop devices, write to /run/mount/utab or /etc/mtab, etc.
  67
  68    It would be nice to improve libmount to check for CAP_SYS_ADMIN if suid not
  69    set and allow to use it for simple tasks where no another operation is
  70    necessary.
  71
  72 partx
  73 -----
  74
  75  - support mapping by device-mapper if argv[0] is "kpartx" or --dm option is used.
  76
  77
  78 getopt
  79 ------
  80   It would be great if getopt could optionally ignore unknown options.
  81   Currently, it outputs -- for every option it doesn't recognize but leaving the
  82   option as it is could beneficial wrapper scripts which could then pass the
  83   options they don't recognize as they are to the command they are wrapping.
  84   https://github.com/karelzak/util-linux/issues/701
  85
  86 docs
  87 ----
  88
  89  - (!) use something better than gtk-doc for libmount and libblkid (doxyden?)
  90
  91  - (!) add API documentation to libuuid
  92
  93
  94 login-utils:
  95 -----------
  96
  97   - consolidate newgrp(1)
  98     * we have "su --group/--supp-group" to switch between groups, newgrp(1) in
  99       util-linux and shadow-utils (and sg(1) alias in shadow-utils)
 100     * the unique functionality provided by newgpr(1) is support for group
 101       passwords [/etc/gshadow] -- do we really need this functionality?
 102     * maybe we can mark group-passwords as deprecated, and replace sg(1) and
 103       newgpr(1) with su(1) code. The another way is to ask for group password in
 104       su --group too.
 105     * note that shadow-utils newgpr(1) provides support for syslog and audit log.
 106
 107
 108 libblkid
 109 --------
 110
 111  - (!) add support for BitLocker Drive Encryption
 112    https://github.com/karelzak/util-linux/issues/617
 113    https://github.com/libyal/libbde/blob/master/documentation/BitLocker%20Drive%20Encryption%20(BDE)%20format.asciidoc
 114
 115  - (!) add support for dasd PT (used for example on s390)
 116
 117 libfdisk
 118 --------
 119
 120  - add support for Apple Partition Map (see libblkid/src/partitions/mac.c)
 121    http://en.wikipedia.org/wiki/Apple_Partition_Map
 122
 123  - add support for nested PT (e.g. hybrid MBR) to scripts
 124    * add "nested-label:" block to sfdisk --dump
 125    * add "nested-partitiontable" to sfdisk --JSON
 126    * support nested labels parsing from dump
 127    see https://github.com/karelzak/util-linux/issues/850
 128
 129 sfdisk
 130 ------
 131
 132  - don't backup PT in interactive mode before write to the devices is requested,
 133    see https://github.com/karelzak/util-linux/issues/852
 134
 135 misc
 136 ----
 137
 138  - add mllockall() and SCHED_FIFO to hwclock,
 139    see http://lkml.org/lkml/2008/10/12/132
 140
 141
 142 ---------------
 143 exotic requests
 144 ---------------
 145
 146  - add SELinux security contexts support to the 'ipcs' utility
 147    http://bugzilla.redhat.com/show_bug.cgi?id=225342
 148
 149    Would be great to list the current system IPC Objects with their respective
 150    security labels (where allowed) with something like 'ipcs -Z' - following the
 151    way other tools reports those.
 152
 153