X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=TODO;h=124f7d91e7287a5fbaf4863e340d88b4427c19bb;hp=a0f71f5dd6df60cd9c40cfd6e2b3c9093867bbf7;hb=d0928791499734e202460d5c027b5d3e0d28e7ab;hpb=151226ab4bf276d60d51864330a99f886b923697 diff --git a/TODO b/TODO index a0f71f5dd..124f7d91e 100644 --- a/TODO +++ b/TODO @@ -1,6 +1,10 @@ +Preparations for 218: + +* cgroup delegation issues + +* test-bus-kernel-bloom is borked + Bugfixes: -* Re-enable "fsck -l" when it is ready: - https://bugs.freedesktop.org/show_bug.cgi?id=79576#c5 * Should systemctl status \* work on all unit types, not just .service? @@ -10,9 +14,17 @@ Bugfixes: * properly handle .mount unit state tracking when two mount points are stacked one on top of another on the exact same mount point. +* ExecStart with unicode characters fails in strv_split_quoted: + + [Service] + Environment=ONE='one' "TWO='two two' too" THREE= + ExecStart=/bin/python3 -c 'import sys;print(sys.argv)' $ONE $TWO $THREE + +* MEMORY return code is overloaded for syntax errors in the command line. + str_split_quoted() should return a real return code, so spawn_child can + report the failure properly. + 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 * Fedora: add an rpmlint check that verifies that all unit files in the RPM are listed in %systemd_post macros. @@ -22,92 +34,188 @@ External: * Fedora: remove /etc/resolv.conf tmpfiles hack +* wiki: update journal format documentation for lz4 additions + +* When lz4 gets an API for lz4 command output, make use of it to + compress coredumps in a way compatible with /usr/bin/lz4. + Features: -* libsystemd-network: - - I don't think there should be a client side object for dhcp - releases (probably not even a directory in /run for it) +* port libmount hookup to use API's own inotify interface, as soon as that is table in libmount + +* bash completion for busctl, to make it truly useful + +* journald: broken file systems are real (btrfs), we need to handle + SIGBUS in some way if we cannot write or read from the disk. + https://bugzilla.redhat.com/show_bug.cgi?id=1151848 + +* "systemctl preset-all" should probably order the unit files it + operates on lexicographically before starting to work, in order to + ensure deterministic behaviour if two unit files conflict (like DMs + do, for example) + +* resolved should optionally register additional per-interface LLMNR + names, so that for the container case we can establish the same name + (maybe "host") for referencing the server, everywhere. + +* systemd-journal-upload (or a new, related tool): allow pushing out + journal messages onto the network in BSD syslog protocol, + continously. Default to some link-local IP mcast group, to make this + useful as a one-stop debugging tool. + +* synchronize console access with BSD locks: + http://lists.freedesktop.org/archives/systemd-devel/2014-October/024582.html + +* as soon as we have kdbus, and sender timestamps, revisit coalescing multiple parallel daemon reloads: + http://lists.freedesktop.org/archives/systemd-devel/2014-December/025862.html + +* set $REMOTE_IP (or $REMOTE_ADDR/$REMOTE_PORT) environment variable when doing per-connection socket activation. use format introduced by xinetd or CGI for this + +* the install state probably shouldn't get confused by generated units, think dbus1/kdbus compat! + +* in systemctl list-unit-files: show the install value the presets would suggest for a service in a third column + +* we should try harder to collapse start jobs for swaps that end up being the same: + http://lists.freedesktop.org/archives/systemd-devel/2014-November/025359.html + +* timedated should compensate on SetTime for the time spent in polkit + +* figure out what to do with libmount and utab? + +* We really should have a FOREACH macro to iterate through inotify events we read, similar to KDBUS_FOREACH_ITEM + +* figure out when we can use the coarse timers + +* sd-resolve: drop res_query wrapping, people should call via the bus to resolved instead + +* add "systemctl start -v foobar.service" that shows logs of a service + while the start command runs. This is non-trivial to do without + races though, since we should flush out all journal messages before + returning from the "systemctl stop". + +* firstboot: make it useful to be run immediately after yum --installroot to set up a machine. (most specifically, make --copy-root-password work even if /etc/passwd already exists + +* timesyncd + resolved: add ugly bus calls to set NTP and DNS servers per-interface, for usage by NM + +* networkd-wait-online really should have a timeout by default + +* add infrastructure to allocate dynamic/transient users and UID ranges, for use in user-namespaced containers, per-seat gdm login screens and gdm guest sessions + +* machined: add an API so that libvirt-lxc can inform us about network interfaces being removed or added to an existing machine + +* maybe add support for specifier expansion in user.conf, specifically DefaultEnvironment= + +* code cleanup: retire FOREACH_WORD_QUOTED, port to unquote_first_word() loops instead + +* introduce systemd-timesync-wait.service or so to sync on an NTP fix? + +* systemd --user should issue sd_notify() upon reaching basic.target, not on becoming idle + +* configure.ac pretends dbus was optional but actually hardcodes use of dbus' pkg-config file to determine various dbus dirs such as policy and activation dirs + +* consider showing the unit names during boot up in the status output, not just the unit descriptions + +* dhcp: do we allow configuring dhcp routes on interfaces that are not the one we got the dhcp info from? + +* maybe allow timer units with an empty Units= setting, so that they + can be used for resuming the system but nothing else. + +* what to do about udev db binary stability for apps? (raw access is not an option) + +* maybe provide an API to allow migration of foreign PIDs into existing scopes. + +* maybe support a new very "soft" reboot mode, that simply kills all processes, disassembles everything, flushes /run and sysvipc, and then reexecs systemd again + +* man: document that corrupted journal files is nothing to act on + +* man: maybe use the word "inspect" rather than "introspect"? + +* "machinectl list" should probably show columns for OS version and IP addresses + +* systemctl: if some operation fails, show log output? + +* systemctl edit: add commented help text to the end, like git commit + +* refcounting in sd-resolve is borked + +* exponential backoff in timesyncd and resolved when we cannot reach a server + +* tmpfiles: port to unquote_many_words(), similar to sysusers + +* unquote_many_words() should probably be used by a lot of code that + currently uses FOREACH_WORD and friends. For example, most conf + parsing callbacks should use it. + +* merge ~/.local/share and ~/.local/lib into one similar /usr/lib and /usr/share.... + +* systemd.show_status= should probably have a mode where only failed + units are shown. + +* networkd: + - add LLDP client side support + - the DHCP lease data (such as NTP/DNS) is still made available when + a carrier is lost on a link. It should be removed instantly. + - .network setting that allows overriding of the hostname to send to the dhcp server + http://lists.freedesktop.org/archives/systemd-devel/2014-July/021550.html + - expose in the API the following bits: + - option 15, domain name and/or option 119, search list + - option 12, host name and/or option 81, fqdn + - option 100, 101, timezone + - option 123, 144, geolocation + - option 252, configure http proxy (PAC/wpad) + - networkd's dhcp server should transparently pass on the DNS and + NTP server list it got from user configuration and its dhcp client + to clients. It should also pass on its own timezone information. + - provide a way to define a per-network interface default metric value + for all routes to it. possibly a second default for DHCP routes. + - allow Name= to be specified repeatedly in the [Match] section. Maybe also + support Name=foo*|bar*|baz ? * resolved: + - put networkd events and rtnl events at a higher priority, so that + we always process them before we process client requests - DNSSEC - use base64 for key presentation? - add display of private key types (http://tools.ietf.org/html/rfc4034#appendix-A.1.1)? - add nice formatting of DNS timestamps - - LLMNR: - - do not fail daemon startup if socket is already busy (container) - - process incoming notification of conflict - - send notifications of conflict - - detect conflicts - - collect multiple responses - - jitter interval support - - watch udev initialization state - - reprobe after suspend + - DNS + - search paths - mDNS/DNS-SD - avahi compat - DNS-SD service registration from socket units - edns0 - dname - cname on PTR (?) - -* Ignore .busname units on classic D-Bus boots, systemd-resolved cannot be started on kdbus - without the active policy and should get a Wants=org.freedesktop.resolve1.busname to - pull-in the policy. + - maybe randomize DNS UDP source ports + - maybe compare query section of DNS replies * Allow multiple ExecStart= for all Type= settings, so that we can cover rescue.service nicely -* the resolv.conf tmpfiles line should be covered by ENABLE_NETWORKD... - -* sysusers: - - also create entries in /etc/shadow, /etc/gshadow - - allow setting the home directory of system users - * Add a new verb "systemctl top" -* order OnCalendar timer units after timer-sync.target if DefaultDependencies=no so that we don't trigger them prematurely - -* refuse mounting on symlinks - -* logind: allow users to kill or lock their own sessions - * add new gpt type for btrfs volumes * support empty /etc boots nicely: - nspawn/gpt-generator: introduce new gpt partition type for /usr - fstab-generator: support systemd.volatile=yes|no|state on the kernel cmdline, too, similar to nspawn's --volatile= - - fstab-generator: add support for usr= in addition to root= on the kernel cmdline * generator that automatically discovers btrfs subvolumes, identifies their purpose based on some xattr on them. -* support setting empty environment variables with Environment= and EnvironmentFile= - -* machined/machinectl: sort IP addresses we return by scope and protocol -* machined: write NSS module for looking up IP addresses for machines - * timer units: actually add extra delays to timer units with high AccuracySec values, don't start them already when we are awake... -* timesyncd - hookup with networkd: NTP servers from dhcp - * a way for container managers to turn off getty starting via $container_headless= or so... * figure out a nice way how we can let the admin know what child/sibling unit causes cgroup membership for a specific unit -* journalctl: add the ability to look for the most recent process of a binary. journalctl /usr/bin/X11 --pid=-1 or so... - -* set NOTIFY_SOCKET also for control processes - * mount_cgroup_controllers(): symlinks need to get the label applied * For timer units: add some mechanisms so that timer units that trigger immediately on boot do not have the services they run added to the initial transaction and thus confuse Type=idle. -* Add timeout to early-boot, and shut down the system if it is hit. Solves the laptop-in-bag problem and is useful for embedded cases - * Run most system services with cgroupfs read-only and procfs with a more secure mode (doesn't work, since the hidepid= option is per-pid-namespace, not per-mount) * sd-event: generate a failure of a default event loop is executed out-of-thread -* expose "Locked" property on logind sesison objects - * add bus api to query unit file's X fields. * consider adding RuntimeDirectoryUser= + RuntimeDirectoryGroup= @@ -119,11 +227,6 @@ Features: - Define new partition type for encrypted swap? Support probed LUKS for encrypted swap? - Make /home automount rather than mount? -* improve journalctl performance by loading journal files - lazily. Encode just enough information in the file name, so that we - do not have to open it to know that it is not interesting for us, for - the most common operations. - * add generator that pulls in systemd-network from containers when CAP_NET_ADMIN is set, more than the loopback device is defined, even when it is otherwise off @@ -181,8 +284,6 @@ Features: * unify dispatch table in systemctl_main() and friends -* Automatically configure swap partition to use for hibernation by looking for largest swap partition on the root disk? - * 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 * After coming back from hibernation reset hibernation swap partition using the /dev/snapshot ioctl APIs @@ -193,10 +294,6 @@ Features: * 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 * make sure gdm does not use multi-user-x but the new default X configuration file, and then remove multi-user-x from systemd @@ -209,12 +306,21 @@ Features: ReadOnlyDirectories=... for whitelisting files for a service. * sd-bus: + - kdbus: process fd=-1 for incoming msgs + - make dsrt happy, and change userspace header for kdbus to yyyyuta{tv}v + - kdbus: remove NameOwnerChanged kernel messages for monitors + - kdbus: PID/TID goes missing for method calls from outside the PID namespace? + - kdbus: the kernel should not allow messages to be delivered that have a reply serial != 0, reply-expect unset, but no appropriate window + - kdbus: timestamps on kernel's NameOwnerChanged messages? + - kdbus' busnames.target should get pulled in by basic.target + - Ignore .busname units on classic D-Bus boots, systemd-resolved cannot be started on kdbus + without the active policy and should get a Wants=org.freedesktop.resolve1.busname to + pull-in the policy. + - port to sd-resolve for connecting to TCP dbus servers + - kdbus: maybe add controlling tty and ppid metadata fields + - see if we can introduce a new sd_bus_get_owner_machine_id() call to retrieve the machine ID of the machine of the bus itself - when kdbus does not take our message without memfds, try again with memfds - - systemd-bus-proxyd needs to enforce good old XML policy - - allow updating attach flags during runtime - - pid1: peek into activating message when activating a service - 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 - see if we can drop more message validation on the sending side - add API to clone sd_bus_message objects - make AddMatch calls on dbus1 transports async? @@ -224,13 +330,19 @@ Features: - kdbus mapping - NameLost/NameAcquired obsolete - GVariant - - "const" properties (posted) - path escaping - update systemd.special(7) to mention that dbus.socket is only about the compatibility socket now - test bloom filter generation indexes + - bus-proxy: when passing messages from kdbus, make sure we properly + handle the case where a large number of fds is appended that we + cannot pass into sendmsg() of the AF_UNIX sokcet (which only accepts + 253 messages) + - kdbus: introduce a concept of "send-only" connections + - kdbus: add counter for refused unicast messages that is passed out via the RECV ioctl. SImilar to the counter for dropped multicast messages we already have. * sd-event - allow multiple signal handlers per signal? + - document chaining of signal handler for SIGCHLD and child handlers * in the final killing spree, detect processes from the root directory, and complain loudly if they have argv[0][0] == '@' set. @@ -247,10 +359,6 @@ Features: * maybe add a generator that looks for "systemd.run=" on the kernel cmdline for container usercases... -* timedatctl, localectl: possibly make some commands work without the daemon, for chroot situations... - -* timedatectl: print a nicer message when enabling ntp fails because ntpd/chrony are not installed - * cgtop: make cgtop useful in a container * test/: @@ -292,8 +400,6 @@ Features: * think about window-manager-run-as-user-service problem: exit 0 → activate shutdown.target; exit != 0 → restart service -* use "log level" rather than "log priority" everywhere - * merge unit_kill_common() and unit_kill_context() * introduce ExecCondition= in services @@ -327,12 +433,26 @@ Features: any session we should probably just become a NOP, since that's usually not a real user session but just some system code that just needs setuid(). + - logind: make the Suspend()/Hibernate() bus calls wait for the for + the job to be completed. before returning, so that clients can wait + for "systemctl suspend" to finish to know when the suspending is + complete. + - logind: when the power button is pressed short, just popup a + logout dialog. If it is pressed for 1s, do the usual + shutdown. Inspiration are Macs here. + - logind: allow users to kill or lock their own sessions + - expose "Locked" property on logind sesison objects + - 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) + - expose orientation sensors and tablet mode through logind * exec: when deinitializating a tty device fix the perms and group, too, not only when initializing. Set access mode/gid to 0620/tty. * service: watchdog logic: for testing purposes allow ping, but do not require pong * journal: + - consider introducing implicit _TTY= + _PPID= + _EUID= + _EGID= + _FSUID= + _FSGID= fields - import and delete pstore filesystem content at startup - journald: also get thread ID from client, plus thread name - journal: when waiting for journal additions in the client always sleep at least 1s or so, in order to minimize wakeups @@ -354,17 +474,14 @@ Features: - journal-send.c, log.c: when the log socket is clogged, and we drop, count this and write a message about this when it gets unclogged again. - journal: find a way to allow dropping history early, based on priority, other rules - journal: When used on NFS, check payload hashes - - journald: check whether it is OK if the client can still modify delivered journal entries - journal live copy, based on libneon (client) and libmicrohttpd (server) - journald: add kernel cmdline option to disable ratelimiting for debug purposes - refuse taking lower-case variable names in sd_journal_send() and friends. - journald: we currently rotate only after MaxUse+MaxFilesize has been reached. - journal: deal nicely with byte-by-byte copied files, especially regards header - - journal: store euid in journal if it differs from uid - journal: sanely deal with entries which are larger than the individual file size, but where the components would fit - Replace utmp, wtmp, btmp, and lastlog completely with journal - journalctl: instead --after-cursor= maybe have a --cursor=XYZ+1 syntax? - - tmpfiles: when applying ownership to /run/log/journal, also do this for the journal fails contained in it - when a kernel driver logs in a tight loop, we should ratelimit that too. - journald: optionally, log debug messages to /run but everything else to /var - journald: when we drop syslog messages because the syslog socket is @@ -375,6 +492,15 @@ Features: boot, and causes the journal to be moved back to /run on shutdown, so that we do not keep /var busy. This needs to happen synchronously, hence doing this via signals is not going to work. + - optionally support running journald from the command line for testing purposes in external projects + - journald: allow per-priority and per-service retention times when rotating/vacuuming + - journald: make use of uid-range.h to managed uid ranges to split + journals in. + - journalctl: add the ability to look for the most recent process of a binary. journalctl /usr/bin/X11 --pid=-1 or so... + - improve journalctl performance by loading journal files + lazily. Encode just enough information in the file name, so that we + do not have to open it to know that it is not interesting for us, for + the most common operations. * document: - document that deps in [Unit] sections ignore Alias= fields in @@ -411,7 +537,6 @@ Features: - "systemctl mask" should find all names by which a unit is accessible (i.e. by scanning for symlinks to it) and link them all to /dev/null - systemctl list-unit-files should list generated files (and probably with a new state "generated" for them, or so) - - systemctl: maybe add "systemctl add-wants" or so... * timer units: - timer units should get the ability to trigger when: @@ -422,15 +547,6 @@ Features: - when parsing calendar timestamps support the UTC timezone (even if we will not support arbitrary timezone specs, support UTC itself certainly makes sense), also support syntaxes such as +0200 - Modulate timer frequency based on battery state -* update the kernel's TZ (sys_tz) when DST changes - -* sync down the system time to the RTC when: - - CLOCK_REALTIME makes jumps (the user explicitely requested a time set) - - DST/timezone changes && ntp is active && RTC-in-localtime (never do it without ntp) - This takes care of syncing ntpdate updates to the RTC, and DST updates for localtime - mode, it will never touch the RTC if the no reliable time source is active or the - user did not request anything like it. - * add libsystemd-password or so to query passwords during boot using the password agent logic * If we show an error about a unit (such as not showing up) and it has no Description string, then show a description string generated form the reverse of unit_name_mangle(). @@ -454,6 +570,9 @@ Features: - bind mount read-only the cgroup tree higher than nspawn - refuses to boot containers without /etc/machine-id (OK?), and with empty /etc/machine-id (not OK). - support taking a btrfs snapshot at startup and dropping it afterwards + - introduce machines.target to order after all nspawn instances + - systemd-nspawn@.service should fail if some nspawn arg is invalid, with Type=notify + - PID 1 doesn't apply nspawns devices cgroup policy * cryptsetup: - cryptsetup-generator: allow specification of passwords in crypttab itself @@ -468,8 +587,6 @@ Features: * make timer units go away after they elapsed -* come up with a nice way to write queue/read_ahead_kb for a block device without interfering with readahead - * move PID 1 segfaults to /var/lib/systemd/coredump? * create /sbin/init symlinks from the build system @@ -487,10 +604,6 @@ Features: * properly handle loop back mounts via fstab, especially regards to fsck/passno -* allow services with no ExecStart= but with an ExecStop= - -* dracut-shutdown needs to be ordered before unmounting /boot - * initialize the hostname from the fs label of /, if /etc/hostname does not exist? * rename "userspace" to "core-os" @@ -518,7 +631,6 @@ Features: * ExecOnFailure=/usr/bin/foo * udev: - - remove src/udev/udev-builtin-firmware.c (CONFIG_FW_LOADER_USER_HELPER=n) - move to LGPL - kill scsi_id - add trigger --subsystem-match=usb/usb_device device @@ -564,9 +676,7 @@ Features: * make sure systemd-ask-password-wall does not shutdown systemd-ask-password-console too early -* support sd_notify() style notification when reload begins (RELOADING=1), reload is finished (READY=1), and add ReloadSignal= then to use in combination - -* support sd_notify() style notification when shutting down, to make auto-exit bus services work (STOPPING=1) +* add ReloadSignal= for configuring a reload signal to use * verify that the AF_UNIX sockets of a service in the fs still exist when we start a service in order to avoid confusion when a user @@ -577,13 +687,6 @@ Features: * and a dbus call to generate target from current state -* readahead: - - drop /.readahead on bigger upgrades with yum - - move readahead files into /var (look for them with .path units?) - - readahead: use BTRFS_IOC_DEFRAG_RANGE instead of BTRFS_IOC_DEFRAG ioctl, with START_IO - - readahead: when bumping /sys readahead variable save mtime and compare later to detect changes - - readahead: make use of EXT4_IOC_MOVE_EXT, as used by http://e4rat.sourceforge.net/ - * GC unreferenced jobs (such as .device jobs) * write blog stories about: @@ -593,7 +696,6 @@ Features: - how to make changes to sysctl and sysfs attributes - remote access - how to pass throw-away units to systemd, or dynamically change properties of existing units - - how to integrate cgconfig and suchlike with systemd - testing with Harald's awesome test kit - auto-restart - how to develop against journal browsing APIs @@ -621,8 +723,6 @@ Features: * fingerprint.target, wireless.target, gps.target, netdevice.target -* drop cap bounding set in readahead and other services - * systemd-python: - figure out a simple way to wait for journal events in a way that works with ^C @@ -671,7 +771,6 @@ Features: - implement reconfigure support, see 5.3., 15.11. and 22.20. - implement information request, see 1.2. and 18.1.5. - implement support for temporary adressess (IA_TA) - - implement elapsed time option - implement dhcpv6 authentication - investigate the usefulness of Confirm messages; i.e. are there any situations where the link changes without any loss in carrier detection @@ -713,8 +812,10 @@ External: * register catalog database signature as file magic -* zsh shell completion: - should complete options, but currently - does not +* zsh shell completion: + - - should complete options, but currently does not + - systemctl add-wants,add-requires + Regularly: