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 rev
   9 ---
  10   - support huge input lines (for example read input by small fixed buffer
  11     rather than try allocate all buffer for a whole line)
  12     see: https://github.com/karelzak/util-linux/issues/972
  13
  14 col
  15 ---
  16   - use unsigned sizes for columns and lines
  17   - check for limits to avoid segfaults
  18   - make it more robust
  19   https://github.com/karelzak/util-linux/issues/749
  20
  21 cal
  22 ---
  23    - support another --reforms, see for example freebsd version
  24      https://github.com/freebsd/freebsd/blob/master/usr.bin/ncal/ncal.c#L72
  25
  26 lscpu
  27 -----
  28   - read cpuid and uname information from file if --sysroot is specified, then
  29     we can prepare regression tests completely independent on hw and architecture.
  30
  31 lsblk
  32 -----
  33   - currently it does not show mountpoint for all devices in btrfs RAID. It's because
  34     /proc/#/mountinfo contains reference to the one device only. Maybe we can add some
  35     btrfs specific code to provide a better output for FS based stacks. Not sure.
  36     https://bugzilla.redhat.com/show_bug.cgi?id=1084453
  37
  38 nsenter(1)
  39 ----------
  40  - read the default UID and GID from the target process.
  41    http://thread.gmane.org/gmane.linux.utilities.util-linux-ng/9553/focus=9585
  42
  43 hwclock
  44 ------
  45  - use /var/lib/hwclock/drift to store hw-clock drift numbers.
  46  - use /etc/adjtime as read-only for UTC/LOCAL information only
  47  - the /var/lib/hwclock/drift should be implemented backwardly compatible,
  48    it means use the file only if exists, otherwise follow /etc/adjtime
  49
  50 bash completion
  51 ---------------
  52 - Optional argument handling requires user to press backspace to get
  53   argument completion.
  54 - Comma separated value, e.g., --output 'value1,value2', are not
  55   completed for users.
  56
  57 libmount (mount/umount)
  58 -----------------------
  59
  60  - add --onlyonce to force mount(8) to check if mountpoint is already used. Now
  61    "already mounted" detection is used for --all only. The problem is if you
  62    call "mount <mountpoint>" more than once for in fstab defined tmpfs (or network
  63    filesystem etc.). In this case kernel does not return EBUSY, but a new instance
  64    of the FS is created. https://github.com/karelzak/util-linux/issues/448
  65    (... just idea, maybe wrong idea)
  66
  67  - support CAP_SYS_ADMIN; for mount(2) syscall the CAP_SYS_ADMIN is good
  68    enough. Unfortunately, mount(8) does more things like check for filesystem
  69    type (but it's usually done by udev, so root perms are unnecessary), create
  70    loop devices, write to /run/mount/utab or /etc/mtab, etc.
  71
  72    It would be nice to improve libmount to check for CAP_SYS_ADMIN if suid not
  73    set and allow to use it for simple tasks where no another operation is
  74    necessary.
  75
  76 partx
  77 -----
  78
  79  - support mapping by device-mapper if argv[0] is "kpartx" or --dm option is used.
  80
  81
  82 getopt
  83 ------
  84   It would be great if getopt could optionally ignore unknown options.
  85   Currently, it outputs -- for every option it doesn't recognize but leaving the
  86   option as it is could beneficial wrapper scripts which could then pass the
  87   options they don't recognize as they are to the command they are wrapping.
  88   https://github.com/karelzak/util-linux/issues/701
  89
  90 docs
  91 ----
  92
  93  - (!) use something better than gtk-doc for libmount and libblkid (doxyden?)
  94
  95  - (!) add API documentation to libuuid
  96
  97  - (!) rewrite man pages to AsciiDoc and generate final man pages by Asciidoctor & Docbook
  98
  99 login-utils:
 100 -----------
 101
 102   - consolidate newgrp(1)
 103     * we have "su --group/--supp-group" to switch between groups, newgrp(1) in
 104       util-linux and shadow-utils (and sg(1) alias in shadow-utils)
 105     * the unique functionality provided by newgpr(1) is support for group
 106       passwords [/etc/gshadow] -- do we really need this functionality?
 107     * maybe we can mark group-passwords as deprecated, and replace sg(1) and
 108       newgpr(1) with su(1) code. The another way is to ask for group password in
 109       su --group too.
 110     * note that shadow-utils newgpr(1) provides support for syslog and audit log.
 111
 112
 113 libblkid
 114 --------
 115
 116  - (!) add support for BitLocker Drive Encryption
 117    https://github.com/karelzak/util-linux/issues/617
 118    https://github.com/libyal/libbde/blob/master/documentation/BitLocker%20Drive%20Encryption%20(BDE)%20format.asciidoc
 119
 120  - (!) add support for dasd PT (used for example on s390)
 121
 122 libfdisk
 123 --------
 124
 125  - add support for Apple Partition Map (see libblkid/src/partitions/mac.c)
 126    http://en.wikipedia.org/wiki/Apple_Partition_Map
 127
 128  - add support for nested PT (e.g. hybrid MBR) to scripts
 129    * add "nested-label:" block to sfdisk --dump
 130    * add "nested-partitiontable" to sfdisk --JSON
 131    * support nested labels parsing from dump
 132    see https://github.com/karelzak/util-linux/issues/850
 133
 134 sfdisk
 135 ------
 136
 137  - don't backup PT in interactive mode before write to the devices is requested,
 138    see https://github.com/karelzak/util-linux/issues/852
 139
 140 misc
 141 ----
 142
 143  - add mllockall() and SCHED_FIFO to hwclock,
 144    see http://lkml.org/lkml/2008/10/12/132
 145
 146
 147 ---------------
 148 exotic requests
 149 ---------------
 150
 151  - add SELinux security contexts support to the 'ipcs' utility
 152    http://bugzilla.redhat.com/show_bug.cgi?id=225342
 153
 154    Would be great to list the current system IPC Objects with their respective
 155    security labels (where allowed) with something like 'ipcs -Z' - following the
 156    way other tools reports those.
 157
 158