Documentation/TODO

   1
   2  Note that items with (!) have high priority.
   3
   4 su/runuser
   5 ----------
   6   - (!) implement pty container for all su/runuser session (something like
   7     script(1)) to separate user from the original terminal (see CVE-2016-2779)
   8
   9 - add functions strtime_short(), strtime_iso(), strtime_ctime(), ...
  10
  11 cleanup lib/path.c:
  12 ------------------
  13    - always return rc from all functions
  14    - introduce control struct and use openat() from top-level path
  15      (e.g. top-level is /proc, etc)
  16 - use lib/path.c as low-level API for lib/sysfs.c
  17    - now we duplicate code in functions like {path,sysfs}_read_u32, etc.
  18    - it would be also nice to have a way how to redirect sysfs.c functions
  19      to /sys snapshots (e.g. lsblk regression tests)
  20
  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 cfdisk
  35 ------
  36   - (!) add auto-sort support (sort partitions automatically) and
  37     --sort={auto,never,always} command line option. This feature should be
  38     enabled by default for logical partitions if we created all container (extended
  39     partition) in the current session.
  40
  41
  42 agetty
  43 -----
  44   - support default issue (/etc/issue) output for agetty to make it agetty
  45     usable on systems with empty /etc.
  46
  47     This change is little bit controversial, because now agetty prints nothing
  48     by default and it's probably used by admins to hide information about the
  49     system to unauthorized users. We already have --noissue to disable issue
  50     output. The question is if admins use this option, "rm /etc/issue" is
  51     probably easer than modify inittab (or systemd unit file).
  52
  53     Maybe we can implement it by --enable-agetty-default-issue compile option and
  54     move the decision to downstream maintainers ;-)
  55
  56 nsenter(1)
  57 ----------
  58  - read the default UID and GID from the target process.
  59    http://thread.gmane.org/gmane.linux.utilities.util-linux-ng/9553/focus=9585
  60
  61 hwlock
  62 ------
  63  - use /var/lib/hwclock/drift to store hw-clock drift numbers.
  64  - use /etc/adjtime as read-only for UTC/LOCAL information only
  65  - the /var/lib/hwclock/drift should be implemented backwardly compatible,
  66    it means use the file only if exists, otherwise follow /etc/adjtime
  67
  68 bash completion
  69 ---------------
  70 - Optional argument handling requires user to press backspace to get
  71   argument completion.
  72 - Comma separated value, e.g., --output 'value1,value2', are not
  73   completed for users.
  74
  75 libmount (mount/umount)
  76 -----------------------
  77
  78  - allow to execute mount(2) in another namespace, something like:
  79         mount --namespace=/proc/$n/ns/mnt  /dev/sda2 /bar
  80    see https://bugzilla.redhat.com/show_bug.cgi?id=1199554 for more details.
  81
  82  - add options to control fstab/mtab mount options usage, something like:
  83
  84    --options-mode={ignore,append,prepend,replace}      MNT_OMODE_{IGNORE, ...}
  85    --options-source={fstab,mtab,disable}               MNT_OMODE_{FSTAB,MTAB,NOTAB}
  86    --options-source-force                              MNT_OMODE_FORCE
  87
  88    (all this already supported by libmount)
  89
  90
  91 partx
  92 -----
  93
  94  - support mapping by device-mapper if argv[0] is "kpartx" or --dm option is used.
  95
  96
  97 docs
  98 ----
  99
 100  - (!) use something better than gtk-doc for libmount and libblkid (doxyden?)
 101
 102  - (!) add API documentation to libuuid
 103
 104
 105 login-utils:
 106 -----------
 107
 108   - consolidate newgrp(1)
 109     * we have "su --group/--supp-group" to switch between groups, newgrp(1) in
 110       util-linux and shadow-utils (and sg(1) alias in shadow-utils)
 111     * the unique functionality provided by newgpr(1) is support for group
 112       passwords [/etc/gshadow] -- do we really need this functionality?
 113     * maybe we can mark group-passwords as deprecated, and replace sg(1) and
 114       newgpr(1) with su(1) code. The another way is to ask fro group password in
 115       su --group too.
 116     * note that shadow-utils newgpr(1) provides support for syslog and audit log.
 117
 118 libblkid
 119 --------
 120
 121  - (!) don't use internally blkid_loff_t, rather use off_t, size_t, ssize_t,
 122        stdint.h types and so on...
 123
 124  - add FSSIZE value  -- filesystem size (klibc requirement)
 125
 126  - (!) add support for dasd PT (used for example on s390)
 127
 128 libfdisk
 129 --------
 130
 131  - (!) use fputs_quoted() when print partition name= and allow to use \x%02x
 132        for input to escape unprintable chars and quotes.
 133
 134  - add support for Apple Partition Map (see libblkid/src/partitions/mac.c)
 135    http://en.wikipedia.org/wiki/Apple_Partition_Map
 136
 137  - catch SIGINT (Ctrl-C) and return to main menu.
 138    From Red Hat bugzilla #545488:
 139
 140    While using fdisk normally, if you accidentally pressed the wrong button (to
 141    start a sequence of questions for some operation, e.g. 'c' to create
 142    partition).  The tool tries too hard to keep asking you for valid input.  You
 143    can't provide a blank or invalid input to get it to break out of the current
 144    dialog sequence and get back to the main menu.
 145
 146 misc
 147 ----
 148
 149  - add mllockall() and SCHED_FIFO to hwclock,
 150    see http://lkml.org/lkml/2008/10/12/132
 151
 152
 153 ---------------
 154 exotic requests
 155 ---------------
 156
 157  - add SELinux security contexts support to the 'ipcs' utility
 158    http://bugzilla.redhat.com/show_bug.cgi?id=225342
 159
 160    Would be great to list the current system IPC Objects with their respective
 161    security labels (where allowed) with something like 'ipcs -Z' - following the
 162    way other tools reports those.
 163
 164