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 irqtop or lsirq
   9 ---------------
  10   - add tool to list and monitor IRQs from /proc/interrupts
  11   - libsmartcols is expected
  12   - initial work is done by zhenwei pi, see https://github.com/pacepi/irqtop
  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    - add option to print calendar in vertical way
  24      https://github.com/karelzak/util-linux/issues/604
  25    - support another --reforms, see for example freebsd version
  26      https://github.com/freebsd/freebsd/blob/master/usr.bin/ncal/ncal.c#L72
  27
  28 lscpu
  29 -----
  30   - read cpuid and uname information from file if --sysroot is specified, then
  31     we can prepare regression tests completely independent on hw and architecture.
  32
  33 lsblk
  34 -----
  35   - currently it does not show mountpoint for all devices in btrfs RAID. It's because
  36     /proc/#/mountinfo contains reference to the one device only. Maybe we can add some
  37     btrfs specific code to provide a better output for FS based stacks. Not sure.
  38     https://bugzilla.redhat.com/show_bug.cgi?id=1084453
  39
  40 nsenter(1)
  41 ----------
  42  - read the default UID and GID from the target process.
  43    http://thread.gmane.org/gmane.linux.utilities.util-linux-ng/9553/focus=9585
  44
  45 hwclock
  46 ------
  47  - use /var/lib/hwclock/drift to store hw-clock drift numbers.
  48  - use /etc/adjtime as read-only for UTC/LOCAL information only
  49  - the /var/lib/hwclock/drift should be implemented backwardly compatible,
  50    it means use the file only if exists, otherwise follow /etc/adjtime
  51
  52 bash completion
  53 ---------------
  54 - Optional argument handling requires user to press backspace to get
  55   argument completion.
  56 - Comma separated value, e.g., --output 'value1,value2', are not
  57   completed for users.
  58
  59 libmount (mount/umount)
  60 -----------------------
  61
  62  - add --onlyonce to force mount(8) to check if mountpoint is already used. Now
  63    "already mounted" detection is used for --all only. The problem is if you
  64    call "mount <mountpoint>" more than once for in fstab defined tmpfs (or network
  65    filesystem etc.). In this case kernel does not return EBUSY, but a new instance
  66    of the FS is created. https://github.com/karelzak/util-linux/issues/448
  67    (... just idea, maybe wrong idea)
  68
  69  - support CAP_SYS_ADMIN; for mount(2) syscall the CAP_SYS_ADMIN is good
  70    enough. Unfortunately, mount(8) does more things like check for filesystem
  71    type (but it's usually done by udev, so root perms are unnecessary), create
  72    loop devices, write to /run/mount/utab or /etc/mtab, etc.
  73
  74    It would be nice to improve libmount to check for CAP_SYS_ADMIN if suid not
  75    set and allow to use it for simple tasks where no another operation is
  76    necessary.
  77
  78 partx
  79 -----
  80
  81  - support mapping by device-mapper if argv[0] is "kpartx" or --dm option is used.
  82
  83
  84 getopt
  85 ------
  86   It would be great if getopt could optionally ignore unknown options.
  87   Currently, it outputs -- for every option it doesn't recognize but leaving the
  88   option as it is could beneficial wrapper scripts which could then pass the
  89   options they don't recognize as they are to the command they are wrapping.
  90   https://github.com/karelzak/util-linux/issues/701
  91
  92 docs
  93 ----
  94
  95  - (!) use something better than gtk-doc for libmount and libblkid (doxyden?)
  96
  97  - (!) add API documentation to libuuid
  98
  99
 100 login-utils:
 101 -----------
 102
 103   - consolidate newgrp(1)
 104     * we have "su --group/--supp-group" to switch between groups, newgrp(1) in
 105       util-linux and shadow-utils (and sg(1) alias in shadow-utils)
 106     * the unique functionality provided by newgpr(1) is support for group
 107       passwords [/etc/gshadow] -- do we really need this functionality?
 108     * maybe we can mark group-passwords as deprecated, and replace sg(1) and
 109       newgpr(1) with su(1) code. The another way is to ask for group password in
 110       su --group too.
 111     * note that shadow-utils newgpr(1) provides support for syslog and audit log.
 112
 113
 114 libblkid
 115 --------
 116
 117  - (!) add support for BitLocker Drive Encryption
 118    https://github.com/karelzak/util-linux/issues/617
 119    https://github.com/libyal/libbde/blob/master/documentation/BitLocker%20Drive%20Encryption%20(BDE)%20format.asciidoc
 120
 121  - (!) add support for dasd PT (used for example on s390)
 122
 123 libfdisk
 124 --------
 125
 126  - add support for Apple Partition Map (see libblkid/src/partitions/mac.c)
 127    http://en.wikipedia.org/wiki/Apple_Partition_Map
 128
 129  - add support for nested PT (e.g. hybrid MBR) to scripts
 130    * add "nested-label:" block to sfdisk --dump
 131    * add "nested-partitiontable" to sfdisk --JSON
 132    * support nested labels parsing from dump
 133    see https://github.com/karelzak/util-linux/issues/850
 134
 135 sfdisk
 136 ------
 137
 138  - don't backup PT in interactive mode before write to the devices is requested,
 139    see https://github.com/karelzak/util-linux/issues/852
 140
 141 misc
 142 ----
 143
 144  - add mllockall() and SCHED_FIFO to hwclock,
 145    see http://lkml.org/lkml/2008/10/12/132
 146
 147
 148 ---------------
 149 exotic requests
 150 ---------------
 151
 152  - add SELinux security contexts support to the 'ipcs' utility
 153    http://bugzilla.redhat.com/show_bug.cgi?id=225342
 154
 155    Would be great to list the current system IPC Objects with their respective
 156    security labels (where allowed) with something like 'ipcs -Z' - following the
 157    way other tools reports those.
 158
 159