X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=TODO;h=2de6bd4248830870492c1bb833347218b4093fe7;hp=af26a5c8b6057f60d2882489a3a83fc6f4e4ec17;hb=7dcd79c295fb1f4bcdda5ead43739acf34100ef8;hpb=cb607ecb84b3cb7299438ca6f7fab705b0a6de45 diff --git a/TODO b/TODO index af26a5c8b..2de6bd424 100644 --- a/TODO +++ b/TODO @@ -1,3 +1,13 @@ +Preparations for 218: + +* port libmount hookup to use API's own inotify interface + +* rhbz + +* Backport: git notes + +* cgroup delegation issues + Bugfixes: * Should systemctl status \* work on all unit types, not just .service? @@ -14,7 +24,7 @@ Bugfixes: 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 commandline. +* 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. @@ -35,9 +45,67 @@ External: Features: -* optionally support running journald from the command line for testing purposes in external projects +* 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 -* journald: allow per-priority and per-service retention times when rotating/vacuuming +* 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? @@ -52,59 +120,34 @@ Features: * 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? +* 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. -* kdbus: maybe rename "connection name" concept to something that doesn't reuse the word "name"? - -* PID 1 doesn't apply nspawns devices cgroup policy - * 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 -* 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) - * man: maybe use the word "inspect" rather than "introspect"? -* introduce machines.target to order after all nspawn instances - -* systemd-nspawn@.service should fail if some nspawn arg is invalid, with Type=notify - * "machinectl list" should probably show columns for OS version and IP addresses -* systemctl: if it fails, show log output? - -* maybe add "systemctl edit" that copies unit files from /usr/lib/systemd/system to /etc/systemd/system and invokes vim on them +* systemctl: if some operation fails, show log output? -* maybe introduce AssertXYZ= similar to ConditionXYZ= that causes a unit to fail (instead of skipping it) if some condition is not true... +* 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 -* journald: make use of uid-range.h to managed uid ranges to split - journals in. - * 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. -* 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. - * merge ~/.local/share and ~/.local/lib into one similar /usr/lib and /usr/share.... -* journald: allows specification of UID range for splitting up journal files - * systemd.show_status= should probably have a mode where only failed units are shown. @@ -143,36 +186,27 @@ Features: - 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 * Add a new verb "systemctl top" -* 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= - * timer units: actually add extra delays to timer units with high AccuracySec values, don't start them already when we are awake... * 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... - * 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 @@ -182,8 +216,6 @@ Features: * 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= @@ -195,11 +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 @@ -267,10 +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 @@ -283,12 +306,19 @@ Features: ReadOnlyDirectories=... for whitelisting files for a service. * sd-bus: + - make dsrt happy, and change userspace header for kdbus to yyyyuta{tv}v + - 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? @@ -301,6 +331,12 @@ Features: - 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? @@ -321,8 +357,6 @@ Features: * maybe add a generator that looks for "systemd.run=" on the kernel cmdline for container usercases... -* timedatectl: print a nicer message when enabling ntp fails because ntpd/chrony are not installed - * cgtop: make cgtop useful in a container * test/: @@ -364,8 +398,6 @@ 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 @@ -399,12 +431,26 @@ 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 @@ -426,17 +472,14 @@ 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 @@ -447,6 +490,15 @@ 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 @@ -493,15 +545,6 @@ 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(). @@ -525,6 +568,9 @@ 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 @@ -539,8 +585,6 @@ 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 @@ -650,7 +694,6 @@ 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 @@ -678,8 +721,6 @@ 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 @@ -771,7 +812,7 @@ External: * zsh shell completion: - - should complete options, but currently does not - - systemctl add-wants,add-requires + - systemctl add-wants,add-requires, edit Regularly: