X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=TODO;h=4fdecebd0fa4fbb77e78d2cc4b37242f69721fd6;hp=6c0b05af043fbde6edbb42aa4a98d412db0a1b92;hb=bd1ce0bdbfc97a958a6c56fe062bed892f08444a;hpb=8ede9794fdc8e659a6adc1dad4e68e03a36efe13 diff --git a/TODO b/TODO index 6c0b05af0..4fdecebd0 100644 --- a/TODO +++ b/TODO @@ -6,24 +6,19 @@ Bugfixes: automount points even when the original .automount file did not exist anymore. Only the .mount unit was still around. -* ExecStart with unicode characters fails in strv_split_quoted: +* ExecStart with unicode characters fails in strv_split_extract: [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. +* When systemctl --host is used, underlying ssh connection can remain open. + bus_close does not kill children? External: * Fedora: add an rpmlint check that verifies that all unit files in the RPM are listed in %systemd_post macros. -* Fedora: move kernel image to /usr/lib/modules/, kernel-install will take care of populating /boot - -* 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 @@ -31,25 +26,190 @@ External: Features: -* change default container location from /var/lib/container to /var/lib/machines +* sd-event: maybe add support for inotify events -* nspawn: when start a container "foobar" look for its configuration in a file "foobar.nspawn" in /etc/systemd/nspawn/ as well as next to the actualy directory or image to boot +* PID 1 should send out sd_notify("WATCHDOG=1") messages (for usage in the --user mode, and when run via nspawn) -* Port various tools to make use of verbs.[ch], where applicable +* nspawn should send out sd_notify("WATCHDOG=1") messages -* Check all invocations of access() and consider turning them into laccess() +* nspawn should optionally support receiving WATCHDOG=1 messages from its payload PID 1... -* "machinectl history" +* consider throwing a warning if a service declares it wants to be "Before=" a .device unit. -* "machinectl diff" +* "systemctl edit" should know a mode to create a new unit file -* "machinectl commit" that takes a writable snapshot of a tree, invokes a shell in it, and marks it read-only after use +* there's probably something wrong with having user mounts below /sys, + as we have for debugfs. for exmaple, src/core/mount.c handles mounts + prefixed with /sys generally special. + http://lists.freedesktop.org/archives/systemd-devel/2015-June/032962.html + +* Add PassEnvironment= setting to service units, to import select env vars from PID 1 into the service env block + +* nspawn: fix logic always print a final newline on output. + https://github.com/systemd/systemd/pull/272#issuecomment-113153176 + +* make nspawn's --network-veth switch more powerful: + http://lists.freedesktop.org/archives/systemd-devel/2015-June/033121.html + +* man: document that unless you use StandardError=null the shell >/dev/stderr won't work in shell scripts in services + +* man: clarify that "machinectl show" shows different information than "machinectl status" (no cgroup tree, no IP addresses, ...) + +* "systemctl daemon-reload" should result in /etc/systemd/system.conf being reloaded by systemd + +* install: include generator dirs in unit file search paths + +* stop using off_t, it's a crazy type. Use uint64_t instead. + +* logind: follow PropertiesChanged state more closely, to deal with quick logouts and relogins + +* invent a better systemd-run scheme for naming scopes, that works with remoting + +* add journalctl -H that talks via ssh to a remote peer and passes through binary logs data + +* change journalctl -M to acquire fd to journal directory via machined, and then operate on that via openat() instead of absolute paths + +* add a version of --merge which also merges /var/log/journal/remote + +* log accumulated resource usage after each service invocation + +* nspawn: a nice way to boot up without machine id set, so that it is set at boot automatically for supporting --ephemeral. Maybe hash the host machine id together with the machine name to generate the machine id for the container + +* logind: rename session scope so that it includes the UID. THat way + the session scope can be arranged freely in slices and we don't have + make assumptions about their slice anymore. + +* journalctl: -m should access container journals directly by enumerating them via machined, and also watch containers coming and going. Benefit: nspawn --ephemeral would start working nicely with the journal. + +* nspawn: don't copy /etc/resolv.conf from host into container unless we are in shared-network mode + +* nspawn: optionally automatically add FORWARD rules to iptables whenever nspawn is running, remove them when shut down. + +* importd: generate a nice warning if mkfs.btrfs is missing + +* nspawn: add a logic for cleaning up read-only, hidden container images in /var/lib/machines that are not ancestors of any non-hidden containers + +* nspawn: Improve error message when --bind= is used on a non-existing source directory + +* nspawn: maybe make copying of /etc/resolv.conf optional, and skip it if --read-only is used + +* man: document how update dkr images works with machinectl + http://lists.freedesktop.org/archives/systemd-devel/2015-February/028630.html + +* nspawn: as soon as networkd has a bus interface, hook up --network-interface=, --network-bridge= with networkd, to trigger netdev creation should an interface be missing + +* rework C11 utf8.[ch] to use char32_t instead of uint32_t when referring + to unicode chars, to make things more expressive. + +* "machinectl migrate" or similar to copy a container from or to a + difference host, via ssh + +* tmpfiles: creating new directories/subvolumes/fifos/device nodes + should not follow symlinks. None of the other adjustment or creation + calls follow symlinks. + +* fstab-generator: default to tmpfs-as-root if only usr= is specified on the kernel cmdline + +* docs: bring http://www.freedesktop.org/wiki/Software/systemd/MyServiceCantGetRealtime up to date + +* mounting and unmounting mount points manually with different source + devices will result in collected collected on all devices used. + http://lists.freedesktop.org/archives/systemd-devel/2015-April/030225.html + +* add a job mode that will fail if a transaction would mean stopping + running units. Use this in timedated to manage the NTP service + state. + http://lists.freedesktop.org/archives/systemd-devel/2015-April/030229.html + +* Maybe add support for the equivalent of "ethtool advertise" to .link files? + http://lists.freedesktop.org/archives/systemd-devel/2015-April/030112.html + +* .timer units should optionally support CLOCK_BOOTTIME in addition to CLOCK_MONOTONIC + +* create a btrfs qgroup for /var/lib/machines, and add all container + subvolumes we create to it. -* "machinectl status" should show 10 most recent log lines of both the host logs of the unit of the machine, plus the logs generated in the machine +* When logging about multiple units (stopping BoundTo units, conflicts, etc.), + log both units as UNIT=, so that journalctl -u triggers on both. -* machinectl terminate doesn't work +* to allow "linking" of nspawn containers, extend --network-bridge= so + that it can dynamically create bridge interfaces that are refcounted + by the containers on them. For each group of containers to link together -* add transparent btrfs pool in a loopback file in /var if btrfs operations (such as systemd-import pull-dkr) are used and /var is not a btrfs file system +* journalctl --verify: don't show files that are currently being + written to as FAIL, but instead show that their are being written + to. + +* assign MESSAGE_ID to log messages about failed services + +* coredump: make the handler check /proc/$PID/rlimits for RLIMIT_CORE, + and supress coredump if turned off. Then change RLIMIT_CORE to + infinity by default for all services. This then allows per-service + control of coredumping. + +* generate better errors when people try to set transient properties + that are not supported... + http://lists.freedesktop.org/archives/systemd-devel/2015-February/028076.html + +* Introduce $LISTEN_NAMES to complement $LISTEN_FDS, containing a + colon separated list of identifiers for the fds passed. + +* maybe introduce WantsMountsFor=? Usecase: + http://lists.freedesktop.org/archives/systemd-devel/2015-January/027729.html + +* rework kexec logic to use new kexec_file_load() syscall, so that we + don't have to call kexec tool anymore. + +* The udev blkid built-in should expose a property that reflects + whether media was sensed in USB CF/SD card readers. This should then + be used to control SYSTEMD_READY=1/0 so that USB card readers aren't + picked up by systemd unless they contain a medium. This would mirror + the behaviour we already have for CD drives. + +* nspawn: emulate /dev/kmsg using CUSE and turn off the syslog syscall + with seccomp. That should provide us with a useful log buffer that + systemd can log to during early boot, and disconnect container logs + from the kernel's logs. + +* networkd/udev: implement SR_IOV configuration in .link files: + http://lists.freedesktop.org/archives/systemd-devel/2015-January/027451.html + +* When RLIMIT_NPROC is set from a unit file it currently always is set + for root, not for the user set in User=, which makes it + useless. After fixing this, set RLIMIT_NPROC for + systemd-journal-xyz, and all other of our services that run under + their own user ids, and use User= (but only in a world where userns + is ubiquitous since otherwise we cannot invoke those daemons on the + host AND in a container anymore). Also, if LimitNPROC= is used + without User= we should warn and refuse operation. + +* logind: maybe allow configuration of the StopTimeout for session scopes + +* Set NoNewPrivileges= on all of our own services, where that makes sense + +* Rework systemctl's GetAll property parsing to use the generic bus_map_all_properties() API + +* rework journald sigbus stuff to use mutex + +* import-dkr: support tarsum checksum verification, if it becomes reality one day... + +* import-dkr: convert json bits to nspawn configuration + +* core/cgroup: support net_cls modules, and support automatically allocating class ids, then add support for making firewall changes depending on it, to implement a per-service firewall + +* introduce systemd-nspawn-ephemeral@.service, and hook it into "machinectl start" with a new --ephemeral switch + +* "machinectl status" should also show internal logs of the container in question + +* "machinectl list-images" should show os-release data, as well as machine-info data (including deployment level) + +* Port various tools to make use of verbs.[ch], where applicable + +* "machinectl history" + +* "machinectl diff" + +* "machinectl commit" that takes a writable snapshot of a tree, invokes a shell in it, and marks it read-only after use * systemd-nspawn -x should support ephemeral instances of gpt images @@ -62,10 +222,6 @@ Features: * port libmount hookup to use API's own inotify interface, as soon as that is table in libmount -* 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 @@ -77,7 +233,7 @@ Features: * 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 + continuously. Default to some link-local IP mcast group, to make this useful as a one-stop debugging tool. * synchronize console access with BSD locks: @@ -86,21 +242,12 @@ Features: * 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 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 @@ -110,15 +257,13 @@ Features: * 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 +* code cleanup: retire FOREACH_WORD_QUOTED, port to extract_first_word() loops instead * introduce systemd-timesync-wait.service or so to sync on an NTP fix? @@ -154,9 +299,7 @@ Features: * 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 +* extract_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. @@ -165,43 +308,42 @@ Features: * systemd.show_status= should probably have a mode where only failed units are shown. +* add systemd.abort_on_kill or some other such flag to send SIGABRT instead of SIGKILL + (throughout the codebase, not only PID1) + * 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 ? + - duplicate address check for static IPs (like ARPCHECK in network-scripts) + - allow DUID/IAID to be customized, see issue #394. + - support configuration option for TSO (tcp segmentation offload) + - networkd: whenever uplink info changes, make DHCP server send out FORCERENEW * 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 - DNS - search paths - mDNS/DNS-SD - avahi compat - DNS-SD service registration from socket units - edns0 - - dname + - dname: Not necessary for plain DNS as synthesized cname is handed out instead if we do not + announce dname support. However, for DNSSEC it is necessary as the synthesized cname + will not be signed. - cname on PTR (?) - - 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 @@ -269,9 +411,6 @@ Features: 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: - - manager property enumeration was broken when systemd moved to /usr/lib/ - * cgroups: - implement per-slice CPUFairScheduling=1 switch - handle jointly mounted controllers correctly @@ -282,7 +421,6 @@ Features: the hierarchies of child processes * transient units: - - allow creating auxiliary units with the same call - 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 @@ -320,20 +458,13 @@ Features: ReadOnlyDirectories=... for whitelisting files for a service. * sd-bus: + - EBADSLT handling + - GetAllProperties() on a non-existing object does not result in a failure currently - kdbus: process fd=-1 for incoming msgs - - 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 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 - - introduce sd_bus_emit_object_added()/sd_bus_emit_object_removed() that automatically includes the build-in interfaces in the list - 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? @@ -388,9 +519,6 @@ Features: * teach ConditionKernelCommandLine= globs or regexes (in order to match foobar={no,0,off}) -* after all byte-wise realloc() is slow, even on glibc, so i guess we - need manual exponential loops after all - * BootLoaderSpec: Clarify that the kernel has to be in $BOOT. Clarify that the boot loader should be installed to the ESP. Define a way how an installer can figure out whether a BLS compliant boot loader @@ -424,8 +552,6 @@ Features: * maybe do not install getty@tty1.service symlink in /etc but in /usr? -* re-enable "make check" for gtk-doc (broken for unknown reason) - * fstab: add new mount option x-systemd-after=/foobar/waldo to allow manual dependencies to other mount points https://bugzilla.redhat.com/show_bug.cgi?id=812826 @@ -453,7 +579,6 @@ Features: - 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. @@ -483,11 +608,11 @@ Features: - journal: add a setgid "systemd-journal" utility to invoke from libsystemd-journal, which passes fds via STDOUT and does PK access - journactl: support negative filtering, i.e. FOOBAR!="waldo", and !FOOBAR for events without FOOBAR. - - journal: send out marker messages every now and then, and immediately sync with fdatasync() afterwards, in order to have hourly guaranteed syncs. + - journal: store timestamp of journal_file_set_offline() int he header, + so it is possible to display when the file was last synced. - 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 - - 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. @@ -564,10 +689,6 @@ Features: * 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(). -* fedup: add --unit to systemctl switch-root somehow -* fedup: do not delete initrd on switch-root -* fedup: generator - * clean up date formatting and parsing so that all absolute/relative timestamps we format can also be parsed * on shutdown: move utmp, wall, audit logic all into PID 1 (or logind?), get rid of systemd-update-utmp-runlevel @@ -580,10 +701,7 @@ Features: * currently x-systemd.timeout is lost in the initrd, since crypttab is copied into dracut, but fstab is not * nspawn: - - 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). - - 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 @@ -628,17 +746,6 @@ Features: * when breaking cycles drop sysv services first, then services from /run, then from /etc, then from /usr -* automount: implement expire: - - set superblock timeout AUTOFS_DEV_IOCTL_TIMEOUT_CMD - - periodically run AUTOFS_DEV_IOCTL_EXPIRE_CMD - - every timeout/4 (original autofs logic) - - blocking, needs a thread - - run until -EAGAIN - - receive expire packet on pipe if kernel tells the timeout is over - - call umount - - answer expire packet on pipe with AUTOFS_DEV_IOCTL_{READY,FAIL}_CMD - - AUTOFS_DEV_IOCTL_EXPIRE_CMD returns - * ExecOnFailure=/usr/bin/foo * udev: @@ -670,6 +777,8 @@ Features: * tmpfiles: - apply "x" on "D" too (see patch from William Douglas) + - replace F with f+. + - instead of ignoring unknown fields, reject them. * for services: do not set $HOME in services unless requested @@ -771,16 +880,13 @@ Features: * dhcp: - figure out how much we can increase Maximum Message Size - - export timezone information - support RFC4702 (pass FQDN) * dhcp6: - add functions to set previously stored IPv6 addresses on startup and get them at shutdown; store them in client->ia_na - write more test cases - - implement and do duplicate address detection, see rfc 4862, 5.4. - 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 dhcpv6 authentication - investigate the usefulness of Confirm messages; i.e. are there any