X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=TODO;h=059047be13d6c96620da1a9fe4e5aeb5c1840f88;hp=e63463923d8abb9d2fbbecd1f44a250a22f38333;hb=96197df081a16bec192a6cfb8f19674ca58f4835;hpb=72ebbf3450340338d71ea2039dfb296bc1d595db diff --git a/TODO b/TODO index e63463923..059047be1 100644 --- a/TODO +++ b/TODO @@ -10,16 +10,13 @@ Bugfixes: * properly handle .mount unit state tracking when two mount points are stacked one on top of another on the exact same mount point. -* When we detect invalid UTF-8, we cannot use it in an error message: - log...("Path is not UTF-8 clean, ignoring assignment: %s", rvalue); - * shorten the message to sane length: Cannot add dependency job for unit display-manager.service, ignoring: Unit display-manager.service failed to load: No such file or directory. See system logs and 'systemctl status display-manager.service' for details. -External: +* systemctl --root=container/ set-default ... is totally borked. -* ps should gain colums for slice +External: * Fedora: when installing fedora with yum --installroot /var/run is a directory, not a symlink https://bugzilla.redhat.com/show_bug.cgi?id=975864 @@ -30,7 +27,66 @@ External: Features: -* libsystemd-journal returns the object created as first param in sd_journal_new(), sd_bus_new() and suchlike as last... +* man: move .link, .network and .netdev documentation into their own + man pages maybe called "systemd.link(5)", "systemd.network(5)" and + "systemd.netdev(5)" or so. + +* extend device cgroup controller support to allow enabling groups of + device nodes, so that pts can be allowed in whole. For that, + introduce the syntax "block-XYZ" and "char-XYZ" in addition to the + existing "/dev/foobar", where XYZ then is looked up in /proc/devices + and mapped to one or more majors. + +* Add all pts device nodes to those allowed by default when the device + controller is used. + +* "busctl status" works only as root on dbus1, since we cannot read + /proc/$PID/exe + +* systemctl (and possibly related tools): support a new switch that + allows enumerating units in local containers recursively. "systemctl + list-units -R" or so should not only lists on the host, but also the + services in all containers in a pretty way, to give an overview of + the entire system. Also, maybe add "systemctl list-machines" which + works like "machinectl list" but includes information about the + health status of each registered machine. For that we should + probably implement something that encodes the system health status + in a single enum state, i.e. something like a system-wide state + starting → running → failed → stopping, that is based on the current + job queue and a check for failed services. Maybe then change + "systemctl status" without args to output this state along with a + selection of other data, such as the uptime or so. + +* Add a seccomp-based filter for socket() calls to limit services to + specific address families (for example: AF_UNIX), inspired by + Android's sandboxing + +* implement Distribute= in socket units to allow running multiple + service instances processing the listening socket, and open this up + for ReusePort= + +* add a timelimit to generator invocation + +* socket units: support creating sockets in different namespace, + opening it up for JoinsNamespaceOf=. This would require to fork off + a tiny process that joins the namespace and creates/binds the socket + and passes this back to PID1 via SCM_RIGHTS. This also could be used + to allow Chown/chgrp on sockets without requiring NSS in PID 1. + +* New service property: maximum CPU and wallclock runtime for a service + +* introduce bus call FreezeUnit(s, b), as well as "systemctl freeze + $UNIT" and "systemctl thaw $UNIT" as wrappers around this. The calls + should SIGSTOP all unit processes in a loop until all processes of + it are fully stopped. This can later be used for app management by + desktop UIs such as gnome-shell to freeze apps that are not visible + on screen, not unlike how job control works on the shell + +* completions: + - busctl zsh completion is outdated + - systemd-nspawn -Z/-L/-q is missing for zsh + - systemd-nspawn completion is missing for bash + - manager property enumeration was broken when systemd moved to /usr/lib/ * cgroups: - implement system-wide DefaultCPUAccounting=1 switch (and similar for blockio, memory?) @@ -47,13 +103,10 @@ Features: - add field to transient units that indicate whether systemd or somebody else saves/restores its settings, for integration with libvirt - ensure scope units may be started only a single time -* code cleanup - - we probably should replace the left-over uses of strv_append() and replace them by strv_push() or strv_extend() +* Automatically configure swap partition to use for hibernation by looking for largest swap partition on the root disk? * when we detect low battery and no AC on boot, show pretty splash and refuse boot -* move libasyncns into systemd as libsystemd-asyncns - * machined, localed: when we try to kill an empty cgroup, generate an ESRCH error over the bus * libsystemd-journal, libsystemd-login, libudev: add calls to easily attach these objects to sd-event event loops @@ -64,12 +117,10 @@ Features: * Automatically configure swap partition to use for hibernation by looking for largest swap partition on the root disk? -* socket-proxyd:Use a nonblocking alternative to getaddrinfo +* socket-proxyd: Use sd-resolve to resolve the server address * rfkill,backlight: we probably should run the load tools inside of the udev rules so that the state is properly initialized by the time other software sees it -* Add a new Distribute=$NUMBER key to socket units that makes use of SO_REUSEPORT to distribute network traffic on $NUMBER instances - * move config_parse_path_strv() out of conf-parser.c * After coming back from hibernation reset hibernation swap partition using the /dev/snapshot ioctl APIs @@ -78,14 +129,11 @@ Features: error. Currently, we just ignore it and read the unit from the search path anyway. -* When a Type=forking service fails and needed another service, that - service is not cleaned up again when it has StopWhenUnneeded=yes - http://lists.freedesktop.org/archives/systemd-devel/2013-July/012141.html - * refuse boot if /etc/os-release is missing or /etc/machine-id cannot be set up * given that logind now lets PID 1 do all nasty work, we can probably reduce the capability set it retains substantially. + (we need CAP_SYS_ADMIN for drmSetMaster(), so maybe not worth it) * btrfs raid assembly: some .device jobs stay stuck in the queue @@ -106,24 +154,29 @@ Features: * allow implementation of InaccessibleDirectories=/ plus ReadOnlyDirectories=... for whitelisting files for a service. -* libsystemd-bus: +* sd-bus: - when kdbus doesn't take our message without memfds, try again with memfds - implement monitor logic - see if we can drop more message validation on the sending side - add API to clone sd_bus_message objects - - SD_BUS_COMMENT() macro for inclusion in vtables, syntax inspired by gdbus - systemd-bus-proxyd needs to enforce good old XML policy - upload minimal kdbus policy into the kernel at boot - kdbus: matches against source or destination pids for an "strace -p"-like feel. Problem: The PID info needs to be available in userspace too... - - longer term: - * priority queues - * priority inheritance + - longer term: priority inheritance - check sender of response messages - dbus spec updates: - kdbus mapping - NameLost/NameAcquired obsolete - GVariant - "const" properties (posted) + - port exit-on-idle logic to byebye ioctl + - update systemd.special(7) to mention that dbus.socket is only about the compatibility socket now + - allow updating attach flags during runtime + - pid1: peek into activating message when activating a service + - test bloom filter generation indexes + - introduce sd_bus_emit_object_added()/sd_bus_emit_object_removed() that automatically includes the build-in interfaces in the list + - port to sd-resolve for connecting to TCP dbus servers + - constructors for bus messages should probably not be OK with a NULL bus pointer * sd-event - allow multiple signal handlers per signal? @@ -132,11 +185,6 @@ Features: complain loudly if they have argv[0][0] == '@' set. https://bugzilla.redhat.com/show_bug.cgi?id=961044 -* Introduce a way how we can kill the main process of a service with KillSignal, but all processes with SIGKILL later on - https://bugzilla.redhat.com/show_bug.cgi?id=952634 - -* maybe add a warning to the unit file parses where the access mode of unit files is nonsensical. - * investigate endianness issues of UUID vs. GUID * dbus: when a unit failed to load (i.e. is in UNIT_ERROR state), we @@ -172,15 +220,8 @@ Features: * when isolating, try to figure out a way how we implicitly can order all units we stop before the isolating unit... -* add ConditionArchitecture= or so - * teach ConditionKernelCommandLine= globs or regexes (in order to match foobar={no,0,off}) -* Support SO_REUSEPORT with socket activation: - - Let systemd maintain a pool of servers. - - Use for seamless upgrades, by running the new server before stopping the - old. - * after all byte-wise realloc() is slow, even on glibc, so i guess we need manual exponential loops after all @@ -242,9 +283,7 @@ Features: - logind: wakelock/opportunistic suspend support - Add pretty name for seats in logind - logind: allow showing logout dialog from system? - - logind: non-local X11 server handling - logind: add equivalent to sd_pid_get_owner_uid() to the D-Bus API - - pam: when leaving a session explicitly exclude the ReleaseSession() caller process from the killing spree - we should probably handle SIGTERM/SIGINT to not leave dot files around, just in case - when logging out, remove user-owned sysv and posix IPC objects - session scopes/user unit: add RequiresMountsFor for the home directory of the user @@ -311,7 +350,6 @@ Features: - document in wiki how to map ical recurrence events to systemd timer unit calendar specifications - add a man page containing packaging guidelines and recommending usage of things like Documentation=, PrivateTmp=, PrivateNetwork= and ReadOnlyDirectories=/etc /usr. - document systemd-journal-flush.service properly - - man: remove .include documentation, and instead push people to use .d/*.conf - documentation: recommend to connect the timer units of a service to the service via Also= in [Install] - man: document the very specific env the shutdown drop-in tools live in - man: extend runlevel(8) to mention that runlevels suck, and are dead. Maybe add runlevel(7) with a note about that too @@ -410,22 +448,16 @@ Features: * currently x-systemd.timeout is lost in the initrd, since crypttab is copied into dracut, but fstab isn't * nspawn: - - nspawn: consider changing users for -u with su, so that NSS resolving works correctly + - nspawn: consider changing users for -u with /usr/bin/getent, so that NSS resolving works correctly - nspawn: implement personality changes a la linux32(8) - nspawn: --read-only is not applied recursively to submounts - nspawn: make use of device cgroup controller by default - bind mount read-only the cgroup tree higher than nspawn - - nspawn: investigate whether we can support the same as LXC's - lxc.network.type=phys mode, and pass through entire network - interfaces to the container - - nspawn: maybe explicitly reset loginuid? - nspawn: make it work for dwalsh and shared /usr containers -- tmpfs mounts as command line parameters, selinux exec context - refuses to boot containers without /etc/machine-id (OK?), and with empty /etc/machine-id (not OK). - - add an option to nspawn that uses seccomp to make socket(AF_NETLINK, - SOCK_RAW, NETLINK_AUDIT) fail the the appropriate error code that - makes the audit userspace to think auditing is not available in the - kernel. - support taking a btrfs snapshot at startup and dropping it afterwards + - maybe: hookup nspawn and PrivateNetwork=yes with "ip netns" + - allow booting disk images with a GPT signature using the bootloaderspec partition uuids * cryptsetup: - cryptsetup-generator: allow specification of passwords in crypttab itself @@ -455,8 +487,6 @@ Features: * explore multiple service instances per listening socket idea -* shutdown: don't read-only mount anything when running in container - * MountFlags=shared acts as MountFlags=slave right now. * ReadOnlyDirectories= is not applied recursively to submounts @@ -478,12 +508,7 @@ Features: * rename "userspace" to "core-os" -* syscall filter: - - syscall filter: add knowledge about compat syscalls - - syscall filter: don't enforce no new privs? - - syscall filter: option to return EPERM rather than SIGSYS? - - syscall filter: port to libseccomp - - system-wide seccomp filter +* syscall filter: optionally don't enforce no new privs? * load-fragment: when loading a unit file via a chain of symlinks verify that it isn't masked via any of the names traversed. @@ -617,13 +642,6 @@ Features: * dot output for --test showing the 'initial transaction' -* port over to LISTEN_FDS/LISTEN_PID: - - postfix, saslauthd - - apache/samba - - libvirtd (/var/run/libvirt/libvirt-sock-ro) - - bluetoothd (/var/run/sdp! @/org/bluez/audio!) - - distccd - * fingerprint.target, wireless.target, gps.target, netdevice.target * io priority during initialization @@ -645,18 +663,14 @@ Features: - Make sure ID_PATH is always exported and complete for network devices where possible, so we can safely rely on Path= matching - - Check if Driver= is broken, or just my driver (bcma) * sd-rtnl: - - replace sd_rtnl_message_append() by type-safe versions - - improve container support, and add support for entering containers when reading + - add support for exiting containers without reading them fully first - add support for more attribute types * networkd: - - unify and clarify logging, also use proper structured log messages - - add [Route] sections - - add more keys to [Address] sections - - add DHCPv4 support (and, longer term, other kinds of dynamic config) + - add more keys to [Route] and [Address] sections + - add support for more DHCPv4 options (and, longer term, other kinds of dynamic config) - add proper initrd support (in particular generate .network/.link files based on /proc/cmdline) External: