3 * Many manager configuration settings that are only applicable to user
4 manager or system manager can be always set. It would be better to reject
5 them when parsing config.
7 * userdbctl: "Password OK: yes" is shown even when there are no passwords
8 or the password is locked.
10 * Get rid of nftw(). We should refuse to use such useless APIs on principle.
12 * Jun 01 09:43:02 krowka systemd[1]: Unit user@1000.service has alias user@.service.
13 Jun 01 09:43:02 krowka systemd[1]: Unit user@6.service has alias user@.service.
14 Jun 01 09:43:02 krowka systemd[1]: Unit user-runtime-dir@6.service has alias user-runtime-dir@.service.
18 * Fedora: add an rpmlint check that verifies that all unit files in the RPM are listed in %systemd_post macros.
21 - natively watch for dbus-*.service symlinks (PENDING)
22 - teach dbus to activate all services it finds in /etc/systemd/services/org-*.service
24 * kernel: add device_type = "fb", "fbcon" to class "graphics"
26 * /usr/bin/service should actually show the new command line
28 * fedora: suggest auto-restart on failure, but not on success and not on coredump. also, ask people to think about changing the start limit logic. Also point people to RestartPreventExitStatus=, SuccessExitStatus=
30 * neither pkexec nor sudo initialize environ[] from the PAM environment?
32 * fedora: update policy to declare access mode and ownership of unit files to root:root 0644, and add an rpmlint check for it
34 * register catalog database signature as file magic
36 * zsh shell completion:
37 - <command> <verb> -<TAB> should complete options, but currently does not
38 - systemctl add-wants,add-requires
40 * systemctl status should know about 'systemd-analyze calendar ... --iterations='
41 * If timer has just OnInactiveSec=..., it should fire after a specified time
44 * write blog stories about:
45 - hwdb: what belongs into it, lsusb
46 - enabling dbus services
47 - how to make changes to sysctl and sysfs attributes
49 - how to pass throw-away units to systemd, or dynamically change properties of existing units
50 - testing with Harald's awesome test kit
52 - how to develop against journal browsing APIs
53 - the journal HTTP iface
54 - non-cgroup resource management
55 - dynamic resource management with cgroups
56 - refreshed, longer missions statement
57 - calendar time events
58 - init=/bin/sh vs. "emergency" mode, vs. "rescue" mode, vs. "multi-user" mode, vs. "graphical" mode, and the debug shell
59 - how to create your own target
60 - instantiated apache, dovecot and so on
61 - hooking a script into various stages of shutdown/rearly booot
65 * look for close() vs. close_nointr() vs. close_nointr_nofail()
67 * check for strerror(r) instead of strerror(-r)
71 * set_put(), hashmap_put() return values check. i.e. == 0 does not free()!
73 * use secure_getenv() instead of getenv() where appropriate
75 * link up selected blog stories from man pages and unit files Documentation= fields
79 * Rearrange tests so that the various test-xyz.c match a specific src/basic/xyz.c again
81 * rework mount.c and swap.c to follow proper state enumeration/deserialization
82 semantics, like we do for device.c now
86 * New udev block device symlink names:
87 /dev/disk/by-parttypelabel/<pttype>/<ptlabel>. Use case: if pt label is used
88 as partition image version string, this is a safe way to reference a specific
89 version of a specific partition type, in particular where related partitions
90 are processed (e.g. verity + rootfs both named "LennartOS_0.7").
92 * in sd-id128: also parse UUIDs in RFC4122 URN syntax (i.e. chop off urn:uuid: prefix)
94 * DynamicUser= + StateDirectory= → use uid mapping mounts, too, in order to
95 make dirs appear under right UID.
97 * systemd-sysext: optionally, run it in initrd already, before transitioning
98 into host, to open up possibility for services shipped like that.
100 * maybe add a tool that displays most recent journal logs as QR code to scan
101 off screen and run it automatically on boot failures, emergency logs and
102 such. Use DRM APIs directly, see
103 https://github.com/dvdhrm/docs/blob/master/drm-howto/modeset.c for an example
106 * pass systemd-detect-virt result to generators as env var. Modifying behaviour
107 based on whether we are virtualized or not is a pretty common thing, hence
108 maybe just pass that info along for free in an env var. We cache the result
109 anyway, so it's basically free.
111 * introduce /dev/disk/root/* symlinks that allow referencing partitions on the
112 disk the rootfs is on in a reasonably secure way. (or maybe: add
113 /dev/gpt-auto-{home,srv,boot,…} similar in style to /dev/gpt-auto-root as we
116 * whenever we receive fds via SCM_RIGHTS make sure none got dropped due to the
117 reception limit the kernel silently enforces.
119 * add an Open= setting to service unit files that can open arbitrary file
120 system paths at service startup time and pass them to the service process via
121 our usual socket activation protocol. If passed path refers to AF_UNIX
122 socket: connect() to it.
124 * add a ConnectSocket= setting to service unit files, that may reference a
125 socket unit, and which will connect to the socket defined therein, and pass
126 the resulting fd to the service program via socket activation proto.
128 * Add a concept of ListenStream=anonymous to socket units: listen on a socket
129 that is deleted in the fs. Usecase would be with ConnectSocket= above.
131 * importd: support image signature verification with PKCS#7 + OpenBSD signify
132 logic, as alternative to crummy gpg
134 * sysext: optionally, if the merged trees allow it use bind mounts instead of
137 * add "systemd-analyze debug" + AttachDebugger= in unit files: The former
138 specifies a command to execute; the latter specifies that an already running
139 "systemd-analyze debug" instance shall be contacted and execution paused
140 until it gives an OK. That way, tools like gdb or strace can be safely be
141 invoked on processes forked off PID 1.
143 * expose MS_NOSYMFOLLOW in various places
145 * allow passing creds into kernel when booting: in EFI stub, collect creds
146 files from ESP directory, generate CPIO archive on the fly from them, so that
147 they are dropped into /run/initramfs/creds/ and pass to kernel as additional
148 initrd. Then, use LoadCredentialEncrypted=foo:/run/initramfs/creds/foo to
151 * make LoadCredential= automatically find credentials in /etc/creds,
152 /run/creds, … and so on, if path component is unqualified
154 * teach LoadCredential=/LoadCredentialEncrypted= to load credentials from
155 kernel cmdline, maybe: LoadCredentialEncrypted=foobar:proc-cmdline:foobar
157 * credentials system:
158 - acquire from kernel command line
159 - acquire from EFI variable?
160 - acquire via via ask-password?
161 - acquire creds via keyring?
162 - pass creds via keyring?
163 - pass creds via memfd?
164 - acquire + decrypt creds from pkcs11?
165 - make systemd-cryptsetup acquire pw via creds logic
166 - make PAMName= acquire pw via creds logic
167 - make macsec/wireguard code in networkd read key via creds logic
168 - make gatwayd/remote read key via creds logic
169 - add sd_notify() command for flushing out creds not needed anymore
171 * teach LoadCredential= the ability to load all files from a specified dir as
174 * add tpm.target or so which is delayed until TPM2 device showed up in case
175 firmware indicates there is one.
177 * tpm2: support a PIN policy, i.e. allowing windows-style short authentication
178 passwords by using the TPM2 to enforce ratelimiting and such, use for
181 * Add concept for upgrading TPM2 enrollments, maybe a new switch
182 --pcrs=4:<hash> or so, i.e. select a PCR to include in the hash, and then
185 * TPM2: auto-reenroll in cryptsetup, as fallback for hosed firmware upgrades
188 * introduce a new group to own TPM devices
190 * cryptenroll: politely refuse enrolling new keys to homed volumes, since we
191 we cannot update identity info
193 * cryptsetup: if only recovery keys are registered and no regular passphrases,
194 ask user for "recovery key", not "passphrase"
196 * cyptsetup: add option for automatically removing empty password slot on boot
198 * cryptsetup: optionally, when run during boot-up and password is never
199 entered, and we are on battery power (or so), power off machine again
201 * cryptsetup: when FIDO2/PKCS#11/TPM2 token/chip didn't show up after some
202 time, abort the attempt, fallback to asking for pw
204 * cryptsetup: when waiting for FIDO2/PKCS#11 token, tell plymouth that, and
205 allow plymouth to abort the waiting and enter pw instead
207 * make cryptsetup lower --iter-time
209 * cryptsetup: allow encoding key directly in /etc/crypttab, maybe with a
210 "base64:" prefix. Useful in particular for pkcs11 mode.
212 * cryptsetup: reimplement the mkswap/mke2fs in cryptsetup-generator to use
213 systemd-makefs.service instead.
216 - cryptsetup-generator: allow specification of passwords in crypttab itself
217 - support rd.luks.allow-discards= kernel cmdline params in cryptsetup generator
219 * when configuring loopback netif, and it fails due to EPERM, eat up error if
220 it happens to be set up alright already.
222 * at boot: check if battery above some threshold, if not power off again after explanation
224 * userdb: add field for ambient caps, so that a user can have CAP_WAKE_ALARM
225 for example. And add code that resets ambient caps for all services by
228 * sd-bus: when connecting to some dbus server socker, set originating AF_UNIX
229 socket name in abstract namespace to include "description" string, and pick
230 it up from there in sd_bus_creds logic. i.e. we can use the socket peer
231 address as conduit for some minimal connection metainfo, and use it to
232 restore the "description" logic that kdbus used to have.
234 * systemd-analyze netif that explains predictable interface (or networkctl)
236 * Add service setting to run a service within the specified VRF. i.e. do the
237 equivalent of "ip vrf exec".
239 * change SwitchRoot() implementation in PID 1 to use pivot_root(".", "."), as
240 documented in the pivot_root(2) man page, so that we can drop the /oldroot
243 * special case some calls of chase_symlinks() to use openat2() internally, so
244 that the kernel does what we otherwise do.
246 * make use of new glibc 2.32 APIs sigabbrev_np() and strerrorname_np().
248 * add /etc/integritytab, to support dm-integrity setups. In particular those
249 with HMAC as hash function, so that we can have a protected /home without
250 encryption (leaving encryption to the individual dirs/homed).
252 * complement root=, rootflags=, rootfstype= with rootsubdir= which allows
253 mounting a subdir of the root fs as actual root. This can be used as
254 fstype-agnostic version of btrfs' rootflags=subvol=foobar.
256 * if /usr/bin/swapoff fails due to OOM, log a friendly explanatory message about it
258 * Remove any support for booting without /usr pre-mounted in the initrd entirely.
259 Update INITRD_INTERFACE.md accordingly.
261 * pid1: Move to tracking of main pid/control pid of units per pidfd
263 * pid1: support new clone3() fork-into-cgroup feature
265 * pid1: also remove PID files of a service when the service starts, not just
268 * make us use dynamically fewer deps for containers in general purpose distros:
269 o turn into dlopen() deps:
271 - p11-kit-trust (always)
272 - kmod-libs (only when called from PID 1)
273 - libblkid (only in RootImage= handling in PID 1, but not elsewhere)
274 - libpam (only when called from PID 1)
275 - bzip2, xz, lz4 (always — gzip and zstd should probably stay static deps the way they are,
276 since they are so basic and our defaults)
277 o move into separate libsystemd-shared-iptables.so .so
278 - iptables-libs (only used by nspawn + networkd)
280 * seccomp: maybe use seccomp_merge() to merge our filters per-arch if we can.
281 Apparently kernel performance is much better with fewer larger seccomp
282 filters than with more smaller seccomp filters.
284 * systemd-path: add ESP and XBOOTLDR path. Add "private" runtime/state/cache dir enum,
285 mapping to $RUNTIME_DIRECTORY, $STATE_DIRECTORY and such
287 * All tools that support --root= should also learn --image= so that they can
288 operate on disk images directly. Specifically: bootctl, systemctl,
289 coredumpctl. (Already done: systemd-nspawn, systemd-firstboot,
290 systemd-repart, systemd-tmpfiles, systemd-sysusers, journalctl)
292 * seccomp: by default mask x32 ABI system wide on x86-64. it's on its way out
294 * seccomp: don't install filters for ABIs that are masked anyway for the
297 * seccomp: maybe merge all filters we install into one with that libseccomp API that allows merging.
299 * busctl: maybe expose a verb "ping" for pinging a dbus service to see if it
302 * Maybe add a separate GPT partition type to the discoverable partition spec
303 for "hibernate" partitions, that are exactly like swap partitions but only
304 activated right before hibernation and thus never used for regular swapping.
306 * by default, in systemd --user service bump the OOMAdjust to 100, as privs
307 allow so that systemd survives
309 * socket units: allow creating a udev monitor socket with ListenDevices= or so,
310 with matches, then activate app through that passing socket over
312 * unify on openssl (as soon as OpenSSL 3.0 is out, and the Debian license
314 - port sd_id128_get_machine_app_specific() over from khash
315 - port resolved over from libgcrypt (DNSSEC code)
316 - port journald + fsprg over from libgcrypt
317 - port importd over from libgcrypt
318 - when that's done: kill khash.c
319 - when that's done: kill gnutls support in resolved
321 * add growvol and makevol options for /etc/crypttab, similar to
322 x-systemd.growfs and x-systemd-makefs.
324 * userdb: allow username prefix searches in varlink API, allow realname and
325 realname substr searches in varlink API
327 * userdb: allow uid/gid range checks
329 * userdb: allow existence checks
331 * pid1: activation by journal search expression
333 * when switching root from initrd to host, set the machine_id env var so that
334 if the host has no machine ID set yet we continue to use the random one the
337 * sd-event: add native support for P_ALL waitid() watching, then move PID 1 to
338 it for reaping assigned but unknown children. This needs to some special care
339 to operate somewhat sensibly in light of priorities: P_ALL will return
340 arbitrary processes, regardless of the priority we want to watch them with,
341 hence on each event loop iteration check all processes which we shall watch
342 with higher prio explicitly, and then watch the entire rest with P_ALL.
344 * tweak sd-event's child watching: keep a prioq of children to watch and use
345 waitid() only on the children with the highest priority until one is waitable
346 and ignore all lower-prio ones from that point on
348 * maybe introduce xattrs that can be set on the root dir of the root fs
349 partition that declare the volatility mode to use the image in. Previously I
350 thought marking this via GPT partition flags but that's not ideal since
351 that's outside of the LUKS encryption/verity verification, and we probably
352 shouldn't operate in a volatile mode unless we got told so from a trusted
355 * coredump: maybe when coredumping read a new xattr from /proc/$PID/exe that
356 may be used to mark a whole binary as non-coredumpable. Would fix:
357 https://bugs.freedesktop.org/show_bug.cgi?id=69447
359 * teach parse_timestamp() timezones like the calendar spec already knows it
361 * beef up hibernation to optionally do swapon/swapoff immediately before/after
364 * beef up s2h to implement a battery watch loop: instead of entering
365 hibernation unconditionally after coming back from resume make a decision
366 based on the battery load level: if battery level is above a specific
367 threshold, go to suspend again, only hibernate if below it. This means we'd
368 stick to suspend usually, but fall back to hibernation only when battery runs
369 empty (well, subject to our sampling interval). Related to this, check if we
370 can make ACPI _BTP (i.e. /sys/class/power_supply/*/alarm) work for us too,
371 i.e. see if it can wake up machines from suspend, so that we could resume
372 automatically when the system is low on power and move automatically to
373 hibernation mode. (see
374 https://uefi.org/sites/default/files/resources/ACPI%206_2_A_Sept29.pdf
376 https://docs.microsoft.com/en-us/windows-hardware/design/device-experiences/modern-standby-wake-sources
379 * We should probably replace /var/log/README, /etc/rc.d/README with symlinks
380 that are linked to these places instead of copied. After all they are
381 constant vendor data.
383 * maybe add kernel cmdline params: to force random seed crediting
385 * introduce a new per-process uuid, similar to the boot id, the machine id, the
386 invocation id, that is derived from process creds, specifically a hashed
387 combination of AT_RANDOM + getpid() + the starttime from
388 /proc/self/status. Then add these ids implicitly when logging. Deriving this
389 uuid from these three things has the benefit that it can be derived easily
390 from /proc/$PID/ in a stable, and unique way that changes on both fork() and
393 * let's not GC a unit while its ratelimits are still pending
395 * when killing due to service watchdog timeout maybe detect whether target
396 process is under ptracing and then log loudly and continue instead.
398 * make rfkill uaccess controllable by default, i.e. steal rule from
399 gnome-bluetooth and friends
401 * make MAINPID= message reception checks even stricter: if service uses User=,
402 then check sending UID and ignore message if it doesn't match the user or
405 * maybe trigger a uevent "change" on a device if "systemctl reload xyz.device"
408 * when importing an fs tree with machined, optionally apply userns-rec-chown
410 * when importing an fs tree with machined, complain if image is not an OS
412 * Maybe introduce a helper safe_exec() or so, which is to execve() which
413 safe_fork() is to fork(). And then make revert the RLIMIT_NOFILE soft limit
414 to 1K implicitly, unless explicitly opted-out.
416 * rework seccomp/nnp logic that even if User= is used in combination with
417 a seccomp option we don't have to set NNP. For that, change uid first whil
418 keeping CAP_SYS_ADMIN, then apply seccomp, the drop cap.
420 * when no locale is configured, default to UEFI's PlatformLang variable
422 * add a new syscall group "@esoteric" for more esoteric stuff such as bpf() and
423 usefaultd() and make systemd-analyze check for it.
425 * paranoia: whenever we process passwords, call mlock() on the memory
426 first. i.e. look for all places we use free_and_erasep() and
427 augment them with mlock(). Also use MADV_DONTDUMP.
429 * Move RestrictAddressFamily= to the new cgroup create socket
431 * support the bind/connect/sendmsg cgroup stuff for sandboxing, and possibly
434 * maybe implicitly attach monotonic+realtime timestamps to outgoing messages in
435 log.c and sd-journal-send
437 * optionally: turn on cgroup delegation for per-session scope units
439 * introduce per-unit (i.e. per-slice, per-service) journal log size limits.
441 * sd-boot: automatically load EFI modules from some drop-in dir, so that people
442 can add in file system drivers and such
444 * sd-boot: optionally, show boot menu when previous default boot item has
445 non-zero "tries done" count
447 * augment CODE_FILE=, CODE_LINE= with something like CODE_BASE= or so which
448 contains some identifier for the project, which allows us to include
449 clickable links to source files generating these log messages. The identifier
450 could be some abberviated URL prefix or so (taking inspiration from Go
451 imports). For example, for systemd we could use
452 CODE_BASE=github.com/systemd/systemd/blob/98b0b1123cc or so which is
453 sufficient to build a link by prefixing "http://" and suffixing the
456 * Augment MESSAGE_ID with MESSAGE_BASE, in a similar fashion so that we can
457 make clickable links from log messages carrying a MESSAGE_ID, that lead to
458 some explanatory text online.
460 * maybe extend .path units to expose fanotify() per-mount change events
462 * When reloading configuration PID 1 should reset all its properties to the
463 original defaults before calling parse_config()
465 * hibernate/s2h: make this robust and safe to enable in Fedora by default.
468 1. add resume_offset support to the resume code (i.e. support swap files
470 2. check if swap is on weird storage and refuse if so
471 3. add auto-detection of hibernation images
473 * cgroups: use inotify to get notified when somebody else modifies cgroups
474 owned by us, then log a friendly warning.
476 * beef up log.c with support for stripping ANSI sequences from strings, so that
477 it is OK to include them in log strings. This would be particularly useful so
478 that our log messages could contain clickable links for example for unit
479 files and suchlike we operate on.
481 * importd: add ability download images for portabled + sysext
483 * add support for "portablectl attach http://foobar.com/waaa.raw (i.e. importd integration)
485 * sync dynamic uids/gids between host+portable srvice (i.e. if DynamicUser=1 is set for a service, make sure that the
486 selected user is resolvable in the service even if it ships its own /etc/passwd)
488 * Fix DECIMAL_STR_MAX or DECIMAL_STR_WIDTH. One includes a trailing NUL, the
489 other doesn't. What a disaster. Probably to exclude it. Also
490 DECIMAL_STR_WIDTH should probably add an extra "-" into account for negative
493 * Check that users of inotify's IN_DELETE_SELF flag are using it properly, as
494 usually IN_ATTRIB is the right way to watch deleted files, as the former only
495 fires when a file is actually removed from disk, i.e. the link count drops to
496 zero and is not open anymore, while the latter happens when a file is
497 unlinked from any dir.
499 * port systemctl, busctl, … over to format-table.[ch]'s table formatters
501 * pid1: lock image configured with RootDirectory=/RootImage= using the usual nspawn semantics while the unit is up
503 * add --vacuum-xyz options to coredumpctl, matching those journalctl already has.
505 * introduce Ephemeral= unit file switch, that creates an ephemeral copy of all
506 files and directories that are left writable for a unit, and which are
507 removed after the unit goes down again. A bit like --ephemeral for
508 systemd-nspawn but for system services. If used together with RootImage= this
509 should reflink the image file itself.
511 Related: add Ephemeral=<path1> <path2> … which would allow marking
512 specific paths only like this.
514 * add CopyFile= or so as unit file setting that may be used to copy files or
515 directory trees from the host to the services RootImage= and RootDirectory=
516 environment. Which we can use for /etc/machine-id and in particular
517 /etc/resolv.conf. Should be smart and do something useful on read-only
518 images, for example fall back to read-only bind mounting the file instead.
520 * show invocation ID in systemd-run output
522 * bypass SIGTERM state in unit files if KillSignal is SIGKILL
524 * add proper dbus APIs for the various sd_notify() commands, such as MAINPID=1
525 and so on, which would mean we could report errors and such.
527 * introduce DefaultSlice= or so in system.conf that allows changing where we
528 place our units by default, i.e. change system.slice to something
529 else. Similar, ManagerSlice= should exist so that PID1's own scope unit could
530 be moved somewhere else too. Finally machined and logind should get similar
531 options so that it is possible to move user session scopes and machines to a
532 different slice too by default. Usecase: people who want to put resources on
533 the entire system, with the exception of one specific service. See:
534 https://lists.freedesktop.org/archives/systemd-devel/2018-February/040369.html
536 * maybe rework get_user_creds() to query the user database if $SHELL is used
537 for root, but only then.
539 * be stricter with fds we receive for the fdstore: close them asynchronously
541 * calenderspec: add support for week numbers and day numbers within a
542 year. This would allow us to define "bi-weekly" triggers safely.
544 * sd-bus: add vtable flag, that may be used to request client creds implicitly
545 and asynchronously before dispatching the operation
547 * sd-bus: parse addresses given in sd_bus_set_addresses immediately and not
548 only when used. Add unit tests.
550 * make use of ethtool veth peer info in machined, for automatically finding out
551 host-side interface pointing to the container.
553 * add some special mode to LogsDirectory=/StateDirectory=… that allows
554 declaring these directories without necessarily pulling in deps for them, or
555 creating them when starting up. That way, we could declare that
556 systemd-journald writes to /var/log/journal, which could be useful when we
557 doing disk usage calculations and so on.
559 * taint systemd if there are fewer than 65536 users assigned (userns) to the system.
561 * deprecate RootDirectoryStartOnly= in favour of a new ExecStart= prefix char
563 * add a new RuntimeDirectoryPreserve= mode that defines a similar lifecycle for
564 the runtime dir as we maintain for the fdstore: i.e. keep it around as long
565 as the unit is running or has a job queued.
567 * support projid-based quota in machinectl for containers
569 * add a way to lock down cgroup migration: a boolean, which when set for a unit
570 makes sure the processes in it can never migrate out of it
572 * blog about fd store and restartable services
574 * document Environment=SYSTEMD_LOG_LEVEL=debug drop-in in debugging document
576 * rework ExecOutput and ExecInput enums so that EXEC_OUTPUT_NULL loses its
577 magic meaning and is no longer upgraded to something else if set explicitly.
579 * in the long run: permit a system with /etc/machine-id linked to /dev/null, to
580 make it lose its identity, i.e. be anonymous. For this we'd have to patch
581 through the whole tree to make all code deal with the case where no machine
584 * optionally, collect cgroup resource data, and store it in per-unit RRD files,
585 suitable for processing with rrdtool. Add bus API to access this data, and
586 possibly implement a CPULoad property based on it.
588 * beef up pam_systemd to take unit file settings such as cgroups properties as
591 * maybe hook of xfs/ext4 quotactl() with services? i.e. automatically manage
592 the quota of the user indicated in User= via unit file settings, like the
593 other resource management concepts. Would mix nicely with DynamicUser=1. Or
594 alternatively, do this with projids, so that we can also cover services
595 running as root. Quota should probably cover all the special dirs such as
596 StateDirectory=, LogsDirectory=, CacheDirectory=, as well as RootDirectory= if it
597 is set, plus the whole disk space any image configured with RootImage=.
599 * In DynamicUser= mode: before selecting a UID, use disk quota APIs on relevant
600 disks to see if the UID is already in use.
602 * expose IO accounting data on the bus, show it in systemd-run --wait and log
603 about it in the resource log message
605 * Add AddUser= setting to unit files, similar to DynamicUser=1 which however
606 creates a static, persistent user rather than a dynamic, transient user. We
607 can leverage code from sysusers.d for this.
609 * add some optional flag to ReadWritePaths= and friends, that has the effect
610 that we create the dir in question when the service is started. Example:
612 ReadWritePaths=:/var/lib/foobar
614 * hostnamed: populate form factor data from a new hwdb database, so that old
615 yogas can be recognized as "convertible" too, even if they predate the DMI
616 "convertible" form factor
618 * Add ExecMonitor= setting. May be used multiple times. Forks off a process in
619 the service cgroup, which is supposed to monitor the service, and when it
620 exits the service is considered failed by its monitor.
622 * track the per-service PAM process properly (i.e. as an additional control
623 process), so that it may be queried on the bus and everything.
625 * add a new "debug" job mode, that is propagated to unit_start() and for
626 services results in two things: we raise SIGSTOP right before invoking
627 execve() and turn off watchdog support. Then, use that to implement
628 "systemd-gdb" for attaching to the start-up of any system service in its
631 * gpt-auto logic: support encrypted swap, add kernel cmdline option to force it, and honour a gpt bit about it, plus maybe a configuration file
633 * add a percentage syntax for TimeoutStopSec=, e.g. TimeoutStopSec=150%, and
634 then use that for the setting used in user@.service. It should be understood
635 relative to the configured default value.
637 * enable LockMLOCK to take a percentage value relative to physical memory
639 * Permit masking specific netlink APIs with RestrictAddressFamily=
641 * define gpt header bits to select volatility mode
643 * ProtectClock= (drops CAP_SYS_TIMES, adds seecomp filters for settimeofday, adjtimex), sets DeviceAllow o /dev/rtc
645 * ProtectTracing= (drops CAP_SYS_PTRACE, blocks ptrace syscall, makes /sys/kernel/tracing go away)
647 * ProtectMount= (drop mount/umount/pivot_root from seccomp, disallow fuse via DeviceAllow, imply Mountflags=slave)
649 * ProtectKeyRing= to take keyring calls away
651 * RemoveKeyRing= to remove all keyring entries of the specified user
653 * ProtectReboot= that masks reboot() and kexec_load() syscalls, prohibits kill
654 on PID 1 with the relevant signals, and makes relevant files in /sys and
655 /proc (such as the sysrq stuff) unavailable
657 * Support ReadWritePaths/ReadOnlyPaths/InaccessiblePaths in systemd --user instances
658 via the new unprivileged Landlock LSM (https://landlock.io)
660 * make sure the ratelimit object can deal with USEC_INFINITY as way to turn off things
662 * in nss-systemd, if we run inside of RootDirectory= with PrivateUsers= set,
663 find a way to map the User=/Group= of the service to the right name. This way
664 a user/group for a service only has to exist on the host for the right
667 * add bus API for creating unit files in /etc, reusing the code for transient units
669 * add bus API to remove unit files from /etc
671 * add bus API to retrieve current unit file contents (i.e. implement "systemctl cat" on the bus only)
673 * rework fopen_temporary() to make use of open_tmpfile_linkable() (problem: the
674 kernel doesn't support linkat() that replaces existing files, currently)
676 * transient units: don't bother with actually setting unit properties, we
677 reload the unit file anyway
679 * optionally, also require WATCHDOG=1 notifications during service start-up and shutdown
681 * cache sd_event_now() result from before the first iteration...
683 * PID1: find a way how we can reload unit file configuration for
684 specific units only, without reloading the whole of systemd
686 * add an explicit parser for LimitRTPRIO= that verifies
687 the specified range and generates sane error messages for incorrect
690 * when we detect that there are waiting jobs but no running jobs, do something
692 * push CPUAffinity= also into the "cpuset" cgroup controller
694 * PID 1 should send out sd_notify("WATCHDOG=1") messages (for usage in the --user mode, and when run via nspawn)
696 * there's probably something wrong with having user mounts below /sys,
697 as we have for debugfs. for example, src/core/mount.c handles mounts
698 prefixed with /sys generally special.
699 http://lists.freedesktop.org/archives/systemd-devel/2015-June/032962.html
701 * fstab-generator: default to tmpfs-as-root if only usr= is specified on the kernel cmdline
703 * initrd-parse-etc.service: can we skip daemon-reload if /sysroot/etc/fstab is missing?
704 Note that we start initrd-fs.target and initrd-cleanup.target there, so a straightforward
705 ConditionPathExists= is not enough.
707 * docs: bring http://www.freedesktop.org/wiki/Software/systemd/MyServiceCantGetRealtime up to date
709 * add a job mode that will fail if a transaction would mean stopping
710 running units. Use this in timedated to manage the NTP service
712 http://lists.freedesktop.org/archives/systemd-devel/2015-April/030229.html
714 * The udev blkid built-in should expose a property that reflects
715 whether media was sensed in USB CF/SD card readers. This should then
716 be used to control SYSTEMD_READY=1/0 so that USB card readers aren't
717 picked up by systemd unless they contain a medium. This would mirror
718 the behaviour we already have for CD drives.
720 * hostnamectl: show root image uuid
722 * Find a solution for SMACK capabilities stuff:
723 http://lists.freedesktop.org/archives/systemd-devel/2014-December/026188.html
725 * synchronize console access with BSD locks:
726 http://lists.freedesktop.org/archives/systemd-devel/2014-October/024582.html
728 * as soon as we have sender timestamps, revisit coalescing multiple parallel daemon reloads:
729 http://lists.freedesktop.org/archives/systemd-devel/2014-December/025862.html
731 * figure out when we can use the coarse timers
733 * maybe allow timer units with an empty Units= setting, so that they
734 can be used for resuming the system but nothing else.
736 * what to do about udev db binary stability for apps? (raw access is not an option)
738 * exponential backoff in timesyncd when we cannot reach a server
740 * timesyncd: add ugly bus calls to set NTP servers per-interface, for usage by NM
742 * merge ~/.local/share and ~/.local/lib into one similar /usr/lib and /usr/share....
744 * add systemd.abort_on_kill or some other such flag to send SIGABRT instead of SIGKILL
745 (throughout the codebase, not only PID1)
747 * drop nss-myhostname in favour of nss-resolve?
751 - service registration
752 - service/domain/types browsing
754 - DNS-SD service registration from socket units
755 - resolved should optionally register additional per-interface LLMNR
756 names, so that for the container case we can establish the same name
757 (maybe "host") for referencing the server, everywhere.
758 - allow clients to request DNSSEC for a single lookup even if DNSSEC is off (?)
759 - hook up resolved with machined-based address resolution
761 * refcounting in sd-resolve is borked
763 * add new gpt type for btrfs volumes
765 * generator that automatically discovers btrfs subvolumes, identifies their purpose based on some xattr on them.
767 * a way for container managers to turn off getty starting via $container_headless= or so...
769 * figure out a nice way how we can let the admin know what child/sibling unit causes cgroup membership for a specific unit
771 * For timer units: add some mechanisms so that timer units that trigger immediately on boot do not have the services
772 they run added to the initial transaction and thus confuse Type=idle.
774 * add bus api to query unit file's X fields.
776 * gpt-auto-generator:
777 - Define new partition type for encrypted swap? Support probed LUKS for encrypted swap?
778 - Make /home automount rather than mount?
780 * add generator that pulls in systemd-network from containers when
781 CAP_NET_ADMIN is set, more than the loopback device is defined, even
782 when it is otherwise off
784 * MessageQueueMessageSize= (and suchlike) should use parse_iec_size().
786 * implement Distribute= in socket units to allow running multiple
787 service instances processing the listening socket, and open this up
791 - implement per-slice CPUFairScheduling=1 switch
792 - introduce high-level settings for RT budget, swappiness
793 - how to reset dynamically changed unit cgroup attributes sanely?
794 - when reloading configuration, apply new cgroup configuration
795 - when recursively showing the cgroup hierarchy, optionally also show
796 the hierarchies of child processes
799 - add field to transient units that indicate whether systemd or somebody else saves/restores its settings, for integration with libvirt
801 * when we detect low battery and no AC on boot, show pretty splash and refuse boot
803 * libsystemd-journal, libsystemd-login, libudev: add calls to easily attach these objects to sd-event event loops
805 * be more careful what we export on the bus as (usec_t) 0 and (usec_t) -1
807 * 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
809 * After coming back from hibernation reset hibernation swap partition using the /dev/snapshot ioctl APIs
811 * If we try to find a unit via a dangling symlink, generate a clean
812 error. Currently, we just ignore it and read the unit from the search
815 * refuse boot if /usr/lib/os-release is missing or /etc/machine-id cannot be set up
817 * man: the documentation of Restart= currently is very misleading and suggests the tools from ExecStartPre= might get restarted.
819 * load .d/*.conf dropins for device units
821 * There's currently no way to cancel fsck (used to be possible via C-c or c on the console)
823 * add option to sockets to avoid activation. Instead just drop packets/connections, see http://cyberelk.net/tim/2012/02/15/portreserve-systemd-solution/
825 * make sure systemd-ask-password-wall does not shutdown systemd-ask-password-console too early
827 * verify that the AF_UNIX sockets of a service in the fs still exist
828 when we start a service in order to avoid confusion when a user
829 assumes starting a service is enough to make it accessible
831 * Make it possible to set the keymap independently from the font on
832 the kernel cmdline. Right now setting one resets also the other.
834 * and a dbus call to generate target from current state
836 * investigate whether the gnome pty helper should be moved into systemd, to provide cgroup support.
838 * dot output for --test showing the 'initial transaction'
840 * be able to specify a forced restart of service A where service B depends on, in case B
841 needs to be auto-respawned?
844 - When logging about multiple units (stopping BoundTo units, conflicts, etc.),
845 log both units as UNIT=, so that journalctl -u triggers on both.
846 - generate better errors when people try to set transient properties
847 that are not supported...
848 http://lists.freedesktop.org/archives/systemd-devel/2015-February/028076.html
849 - maybe introduce WantsMountsFor=? Usecase:
850 http://lists.freedesktop.org/archives/systemd-devel/2015-January/027729.html
851 - recreate systemd's D-Bus private socket file on SIGUSR2
852 - move PAM code into its own binary
853 - when we automatically restart a service, ensure we restart its rdeps, too.
854 - hide PAM options in fragment parser when compile time disabled
855 - Support --test based on current system state
856 - 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().
857 - after deserializing sockets in socket.c we should reapply sockopts and things
858 - drop PID 1 reloading, only do reexecing (difficult: Reload()
859 currently is properly synchronous, Reexec() is weird, because we
860 cannot delay the response properly until we are back, so instead of
861 being properly synchronous we just keep open the fd and close it
862 when done. That means clients do not get a successful method reply,
863 but much rather a disconnect on success.
864 - when breaking cycles drop sysv services first, then services from /run, then from /etc, then from /usr
865 - when a bus name of a service disappears from the bus make sure to queue further activation requests
866 - maybe introduce CoreScheduling=yes/no to optionally set a PR_SCHED_CORE cookie, so that all
867 processes in a service's cgroup share the same cookie and are guaranteed not to share SMT cores
868 with other units https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/admin-guide/hw-vuln/core-scheduling.rst
871 - allow port=0 in .socket units
872 - maybe introduce ExecRestartPre=
873 - add ReloadSignal= for configuring a reload signal to use
874 - implement Register= switch in .socket units to enable registration
875 in Avahi, RPC and other socket registration services.
876 - allow Type=simple with PIDFile=
877 https://bugzilla.redhat.com/show_bug.cgi?id=723942
878 - allow writing multiple conditions in unit files on one line
879 - introduce Type=pid-file
880 - add a concept of RemainAfterExit= to scope units
881 - Allow multiple ExecStart= for all Type= settings, so that we can cover rescue.service nicely
882 - add verification of [Install] section to systemd-analyze verify
885 - timer units should get the ability to trigger when:
887 - Modulate timer frequency based on battery state
889 * add libsystemd-password or so to query passwords during boot using the password agent logic
891 * clean up date formatting and parsing so that all absolute/relative timestamps we format can also be parsed
893 * on shutdown: move utmp, wall, audit logic all into PID 1 (or logind?), get rid of systemd-update-utmp-runlevel
895 * make repeated alt-ctrl-del presses printing a dump
897 * hostnamed: before returning information from /etc/machine-info.conf check the modification data and reread. Similar for localed, ...
899 * currently x-systemd.timeout is lost in the initrd, since crypttab is copied into dracut, but fstab is not
901 * add a pam module that passes the hdd passphrase into the PAM stack and then expires it, for usage by gdm auto-login.
903 * add a pam module that on password changes updates any LUKS slot where the password matches
906 - add unit tests for config_parse_device_allow()
908 * seems that when we follow symlinks to units we prefer the symlink
909 destination path over /etc and /usr. We should not do that. Instead
910 /etc should always override /run+/usr and also any symlink
913 * when isolating, try to figure out a way how we implicitly can order
914 all units we stop before the isolating unit...
916 * teach ConditionKernelCommandLine= globs or regexes (in order to match foobar={no,0,off})
918 * Add ConditionDirectoryNotEmpty= handle non-absoute paths as a search path or add
919 ConditionConfigSearchPathNotEmpty= or different syntax? See the discussion starting at
920 https://github.com/systemd/systemd/pull/15109#issuecomment-607740136.
922 * BootLoaderSpec: Clarify that the kernel has to be in $BOOT. Clarify
923 that the boot loader should be installed to the ESP. Define a way
924 how an installer can figure out whether a BLS compliant boot loader
927 * think about requeuing jobs when daemon-reload is issued? usecase:
928 the initrd issues a reload after fstab from the host is accessible
929 and we might want to requeue the mounts local-fs acquired through
932 * systemd-inhibit: make taking delay locks useful: support sending SIGINT or SIGTERM on PrepareForSleep()
934 * remove any syslog support from log.c — we probably cannot do this before split-off udev is gone for good
936 * shutdown logging: store to EFI var, and store to USB stick?
938 * merge unit_kill_common() and unit_kill_context()
940 * hw watchdog: optionally try to use the preset watchdog timeout instead of always overriding it
941 https://bugs.freedesktop.org/show_bug.cgi?id=54712
943 * add a dependency on standard-conf.xml and other included files to man pages
945 * MountFlags=shared acts as MountFlags=slave right now.
947 * properly handle loop back mounts via fstab, especially regards to fsck/passno
949 * initialize the hostname from the fs label of /, if /etc/hostname does not exist?
953 - GetAllProperties() on a non-existing object does not result in a failure currently
954 - port to sd-resolve for connecting to TCP dbus servers
955 - 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
956 - see if we can drop more message validation on the sending side
957 - add API to clone sd_bus_message objects
958 - longer term: priority inheritance
960 - NameLost/NameAcquired obsolete
963 - update systemd.special(7) to mention that dbus.socket is only about the compatibility socket now
966 - allow multiple signal handlers per signal?
967 - document chaining of signal handler for SIGCHLD and child handlers
968 - define more intervals where we will shift wakeup intervals around in, 1h, 6h, 24h, ...
969 - maybe support iouring as backend, so that we allow hooking read and write
970 operations instead of IO ready events into event loops. See considerations
972 http://blog.vmsplice.net/2020/07/rethinking-event-loop-integration-for.html
974 * dbus: when a unit failed to load (i.e. is in UNIT_ERROR state), we
975 should be able to safely try another attempt when the bus call LoadUnit() is invoked.
977 * maybe do not install getty@tty1.service symlink in /etc but in /usr?
979 * print a nicer explanation if people use variable/specifier expansion in ExecStart= for the first word
981 * mount: turn dependency information from /proc/self/mountinfo into dependency information between systemd units.
983 * firstboot: allow provisioning of /etc/hosts entries, so that we can via the
984 credentials logic insert host name to resolve into containers/hosts. Usecase:
985 fork a container, and make it ping some specific address which is defined by
986 the host on invocation
988 * systemd-firstboot: make sure to always use chase_symlinks() before
989 reading/writing files
991 * 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
993 * sd-boot: define a drop-in dir in the ESP that may contain X.509
994 certificates. If the firmware is detected to be in setup mode, automatically
995 enroll them as PK/KEK/db, turn off setup mode and proceed. Optionally,
996 instead of auto-enrolling them add them to the sd-boot menu, giving the user
997 the option to manually enroll them, after selecting the menu entry. This way,
998 installer images can just drop the certfiicates in the ESP, and on first boot
999 can easily enroll the keys without ever booting up.
1001 * efi stub: optionally, load initrd from disk as a separate file, HMAC check it
1002 with key from TPM, bound to PCR, refusing if failing. This would then allow
1003 traditional distros that generate initrds locally to secure them with TPM:
1004 after generating the initrd, do the HMAC calculation, put result in initrd
1005 filename, done. This would then bind the validity of the initrd to the local
1006 host, and used kernel, and means people cannot change initrd or kernel
1007 without booting the kernel + initrd.
1010 - honor language efi variables for default language selection (if there are any?)
1011 - honor timezone efi variables for default timezone selection (if there are any?)
1012 - change bootctl to be backed by systemd-bootd to control temporary and persistent default boot goal plus efi variables
1014 - recognize the case when not booted on EFI
1016 * bootctl,sd-boot: actually honour the "architecture" key
1018 * sd-boot: add service that automatically runs "bootctl update" on every boot,
1019 in a graceful way, so that updated /usr trees automatically propagate into
1020 updated boot loaders on reboot.
1023 - teach it to prepare an ESP wholesale, i.e. with mkfs.vfat invocation
1024 - teach it to copy in unified kernel images and maybe type #1 boot loader spec entries from host
1025 - make it operate on loopback files, dissecting enough to find ESP to operate on
1028 - logind: optionally, ignore idle-hint logic for autosuspend, block suspend as long as a session is around
1029 - logind: wakelock/opportunistic suspend support
1030 - Add pretty name for seats in logind
1031 - logind: allow showing logout dialog from system?
1032 - add Suspend() bus calls which take timestamps to fix double suspend issues when somebody hits suspend and closes laptop quickly.
1033 - if pam_systemd is invoked by su from a process that is outside of a
1034 any session we should probably just become a NOP, since that's
1035 usually not a real user session but just some system code that just
1037 - logind: make the Suspend()/Hibernate() bus calls wait for the for
1038 the job to be completed. before returning, so that clients can wait
1039 for "systemctl suspend" to finish to know when the suspending is
1041 - logind: when the power button is pressed short, just popup a
1042 logout dialog. If it is pressed for 1s, do the usual
1043 shutdown. Inspiration are Macs here.
1044 - expose "Locked" property on logind session objects
1045 - maybe allow configuration of the StopTimeout for session scopes
1046 - rename session scope so that it includes the UID. THat way
1047 the session scope can be arranged freely in slices and we don't have
1048 make assumptions about their slice anymore.
1049 - follow PropertiesChanged state more closely, to deal with quick logouts and
1051 - (optionally?) spawn seat-manager@$SEAT.service whenever a seat shows up that as CanGraphical set
1053 * move logind udev rules to top-level rule.d/ directory
1055 * move multiseat vid/pid matches from logind udev rule to hwdb
1057 * logind: rework pam_logind to also do a bus call in case of invocation from
1058 user@.service, which returns the XDG_RUNTIME_DIR value, and make this
1059 behaviour selectable via pam module option.
1061 * delay activation of logind until somebody logs in, or when /dev/tty0 pulls it
1062 in or lingering is on (so that containers don't bother with it until PAM is used). also exit-on-idle
1065 - consider introducing implicit _TTY= + _PPID= + _EUID= + _EGID= + _FSUID= + _FSGID= fields
1066 - journald: also get thread ID from client, plus thread name
1067 - journal: when waiting for journal additions in the client always sleep at least 1s or so, in order to minimize wakeups
1068 - add API to close/reopen/get fd for journal client fd in libsystemd-journal.
1069 - fall back to /dev/log based logging in libsystemd-journal, if we cannot log natively?
1070 - declare the local journal protocol stable in the wiki interface chart
1071 - sd-journal: speed up sd_journal_get_data() with transparent hash table in bg
1072 - journald: when dropping msgs due to ratelimit make sure to write
1073 "dropped %u messages" not only when we are about to print the next
1074 message that works, but already after a short timeout
1075 - check if we can make journalctl by default use --follow mode inside of less if called without args?
1076 - maybe add API to send pairs of iovecs via sd_journal_send
1077 - journal: add a setgid "systemd-journal" utility to invoke from libsystemd-journal, which passes fds via STDOUT and does PK access
1078 - journactl: support negative filtering, i.e. FOOBAR!="waldo",
1079 and !FOOBAR for events without FOOBAR.
1080 - journal: store timestamp of journal_file_set_offline() in the header,
1081 so it is possible to display when the file was last synced.
1082 - 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.
1083 - journal: find a way to allow dropping history early, based on priority, other rules
1084 - journal: When used on NFS, check payload hashes
1085 - journald: add kernel cmdline option to disable ratelimiting for debug purposes
1086 - refuse taking lower-case variable names in sd_journal_send() and friends.
1087 - journald: we currently rotate only after MaxUse+MaxFilesize has been reached.
1088 - journal: deal nicely with byte-by-byte copied files, especially regards header
1089 - journal: sanely deal with entries which are larger than the individual file size, but where the components would fit
1090 - Replace utmp, wtmp, btmp, and lastlog completely with journal
1091 - journalctl: instead --after-cursor= maybe have a --cursor=XYZ+1 syntax?
1092 - when a kernel driver logs in a tight loop, we should ratelimit that too.
1093 - journald: optionally, log debug messages to /run but everything else to /var
1094 - journald: when we drop syslog messages because the syslog socket is
1095 full, make sure to write how many messages are lost as first thing
1096 to syslog when it works again.
1097 - journald: allow per-priority and per-service retention times when rotating/vacuuming
1098 - journald: make use of uid-range.h to managed uid ranges to split
1100 - journalctl: add the ability to look for the most recent process of a binary. journalctl /usr/bin/X11 --pid=-1 or so...
1101 - improve journalctl performance by loading journal files
1102 lazily. Encode just enough information in the file name, so that we
1103 do not have to open it to know that it is not interesting for us, for
1104 the most common operations.
1105 - man: document that corrupted journal files is nothing to act on
1106 - rework journald sigbus stuff to use mutex
1107 - Set RLIMIT_NPROC for systemd-journal-xyz, and all other of our
1108 services that run under their own user ids, and use User= (but only
1109 in a world where userns is ubiquitous since otherwise we cannot
1110 invoke those daemons on the host AND in a container anymore). Also,
1111 if LimitNPROC= is used without User= we should warn and refuse
1113 - journalctl --verify: don't show files that are currently being
1114 written to as FAIL, but instead show that their are being written to.
1115 - add journalctl -H that talks via ssh to a remote peer and passes through
1117 - add a version of --merge which also merges /var/log/journal/remote
1118 - journalctl: -m should access container journals directly by enumerating
1119 them via machined, and also watch containers coming and going.
1120 Benefit: nspawn --ephemeral would start working nicely with the journal.
1121 - assign MESSAGE_ID to log messages about failed services
1122 - check if loop in decompress_blob_xz() is necessary
1124 * journald: support RFC3164 fully for the incoming syslog transport, see
1125 https://github.com/systemd/systemd/issues/19251#issuecomment-816601955
1127 * Hook up journald's FSS logic with TPM2: seal the verification disk by
1128 time-based policy, so that the verification key can remain on host and ve
1131 * build short web pages out of each catalog entry, build them along with man
1132 pages, and include hyperlinks to them in the journal output
1134 * journald: do journal file writing out-of-process, with one writer process per
1135 client UID, so that synthetic hash table collisions can slow down a specific
1136 user's journal stream down but not the others.
1138 * tweak journald context caching. In addition to caching per-process attributes
1139 keyed by PID, cache per-cgroup attributes (i.e. the various xattrs we read)
1140 keyed by cgroup path, and guarded by ctime changes. This should provide us
1141 with a nice speed-up on services that have many processes running in the same
1144 * maybe add call sd_journal_set_block_timeout() or so to set SO_SNDTIMEO for
1145 the sd-journal logging socket, and, if the timeout is set to 0, sets
1146 O_NONBLOCK on it. That way people can control if and when to block for
1149 * journalctl: make sure -f ends when the container indicated by -M terminates
1151 * journald: sigbus API via a signal-handler safe function that people may call
1152 from the SIGBUS handler
1154 * add a test if all entries in the catalog are properly formatted.
1155 (Adding dashes in a catalog entry currently results in the catalog entry
1156 being silently skipped. journalctl --update-catalog must warn about this,
1157 and we should also have a unit test to check that all our message are OK.)
1160 - when user tries to log into record signed by unrecognized key, automatically add key to our chain after polkit auth
1161 - rollback when resize fails mid-operation
1162 - GNOME's side for forget key on suspend (requires rework so that lock screen runs outside of uid)
1164 - shrink fs on logout?
1165 - update LUKS password on login if we find there's a password that unlocks the JSON record but not the LUKS device.
1166 - create on activate?
1167 - properties: icon url?, preferred session type?, administrator bool (which translates to 'wheel' membership)?, address?, telephone?, vcard?, samba stuff?, parental controls?
1168 - communicate clearly when usb stick is safe to remove. probably involves
1169 beefing up logind to make pam session close hook synchronous and wait until
1170 systemd --user is shut down.
1171 - logind: maybe keep a "busy fd" as long as there's a non-released session around or the user@.service
1172 - maybe make automatic, read-only, time-based reflink-copies of LUKS disk
1173 images (and btrfs snapshots of subvolumes) (think: time machine)
1174 - distinguish destroy / remove (i.e. currently we can unregister a user, unregister+remove their home directory, but not just remove their home directory)
1175 - in systemd's PAMName= logic: query passwords with ssh-askpassword, so that we can make "loginctl set-linger" mode work
1176 - fingerprint authentication, pattern authentication, …
1177 - make sure "classic" user records can also be managed by homed
1178 - make size of $XDG_RUNTIME_DIR configurable in user record
1179 - query password from kernel keyring first
1180 - update even if record is "absent"
1181 - add a "access mode" + "fstype" field to the "status" section of json identity records reflecting the actually used access mode and fstype, even on non-luks backends
1182 - move acct mgmt stuff from pam_systemd_home to pam_systemd?
1183 - when "homectl --pkcs11-token-uri=" is used, synthesize ssh-authorized-keys records for all keys we have private keys on the stick for
1184 - make slice for users configurable (requires logind rework)
1185 - logind: populate auto-login list bus property from PKCS#11 token
1186 - when determining state of a LUKS home directory, check DM suspended sysfs file
1187 - introduce API for "making room", that grows/shrinks home directory
1188 according to elastic parameters, discards blocks, and removes additional snapshots. Call it
1189 either from UI when disk space gets low
1191 * homed: during login resize fs automatically towards size goal. Specifically,
1192 resize to diskSize if possible, but leave a certain amount (configured by a
1193 new value diskLeaveFreeSize) of space free on the backing fs.
1195 * homed: permit multiple user record signing keys to be used locally, and pick
1196 the right one for signing records automatically depending on a pre-existing
1199 * homed: add a way to "adopt" a home directory, i.e. strip foreign signatures
1200 and insert a local signature instead.
1202 * homed: as an extension to the directory+subvolume backend: if located on
1203 especially marked fs, then sync down password into LUKS header of that fs,
1204 and always verify passwords against it too. Bootstrapping is a problem
1205 though: if no one is logged in (or no other user even exists yet), how do you
1206 unlock the volume in order to create the first user and add the first pw.
1208 * homed: support new FS_IOC_ADD_ENCRYPTION_KEY ioctl for setting up fscrypt
1210 * homed: maybe pre-create ~/.cache as subvol so that it can have separate quota
1213 * homed: if kernel 5.12 uid mapping mounts exist, use that instead of recursive
1216 * add a switch to homectl (maybe called --first-boot) where it will check if
1217 any non-system users exist, and if not prompts interactively for basic user
1218 info, mimicking systemd-firstboot. Then, place this in a service that runs
1219 after systemd-homed, but before gdm and friends, as a simple, barebones
1220 fallback logic to get a regular user created on uninitialized systems.
1222 * homed: store PKCS#11 + FIDO2 token info in LUKS2 header, compatible with
1223 systemd-cryptsetup, so that it can unlock homed volumes
1225 * homed: try to unmount in regular intervals when home dir was busy when we
1228 * homed: keep an fd to the homedir open at all times, to keep the fs pinned
1229 (autofs and such) while user is logged in.
1231 * when we resize disks (homed?) always round up to 4K sectors, not 512K
1233 * add a new switch --auto-definitions=yes/no or so to systemd-repart. If
1234 specified, synthesize a definition automatically if we can: enlarge last
1235 partition on disk, but only if it is marked for growing and not read-only.
1237 * systemd-repart: read LUKS encryption key from $CREDENTIALS_PATH
1239 * systemd-repart: add a switch to factory reset the partition table without
1240 immediately applying the new configuration again. i.e. --factory-reset=leave
1241 or so. (this is useful to factory reset an image, then putting it into
1242 another machine, ensuring that luks key is generated on new machine, not old)
1244 * systemd-repart: support setting up dm-integrity with HMAC
1246 * systemd-repart: maybe remove half-initialized image on failure. It fails
1247 if the output file exists, so a repeated invocation will usually fail if
1248 something goes wrong on the way.
1250 * systemd-repart: drop pager mode on normal operation?
1252 * systemd-repart: by default generate minimized partition tables (i.e. tables
1253 that only cover the space actually used, excluding any free space at the
1254 end), in order to maximize dd'ability. Requires libfdisk work, see
1255 https://github.com/karelzak/util-linux/issues/907
1257 * systemd-repart: MBR partition table support. Care needs to be taken regarding
1258 Type=, so that partition definitions can sanely apply to both the GPT and the
1259 MBR case. Idea: accept syntax "Type=gpt:home mbr:0x83" for setting the types
1260 for the two partition types explicitly. And provide an internal mapping so
1261 that "Type=linux-generic" maps to the right types for both partition tables
1264 * systemd-repart: allow sizing partitions as factor of available RAM, so that
1265 we can reasonably size swap partitions for hibernation.
1267 * systemd-repart: allow boolean option that ensures that if existing partition
1268 doesn't exist within the configured size bounds the whole command fails. This
1269 is useful to implement ESP vs. XBOOTLDR schemes in installers: have one set
1270 of repart files for the case where ESP is large enough and one where it isn't
1271 and XBOOTLDR is added in instead. Then apply the former first, and if it
1272 fails to apply use the latter.
1274 * systemd-repart: add per-partition option to never reuse existing partition
1275 and always create anew even if matching partition already exists.
1277 * systemd-repart: add per-partition option to fail if partition already exist,
1278 i.e. is not added new. Similar, add option to fail if partition does not exist yet.
1280 * systemd-repart: allow disabling growing of specific partitions, or making
1281 them (think ESP: we don't ever want to grow it, since we cannot resize vfat)
1283 * systemd-repart: make it a static checker during early boot for existence and
1284 absence of other partitions for trusted boot environments
1287 - document that deps in [Unit] sections ignore Alias= fields in
1288 [Install] units of other units, unless those units are disabled
1289 - man: clarify that time-sync.target is not only sysv compat but also useful otherwise. Same for similar targets
1290 - document that service reload may be implemented as service reexec
1291 - add a man page containing packaging guidelines and recommending usage of things like Documentation=, PrivateTmp=, PrivateNetwork= and ReadOnlyDirectories=/etc /usr.
1292 - document systemd-journal-flush.service properly
1293 - documentation: recommend to connect the timer units of a service to the service via Also= in [Install]
1294 - man: document the very specific env the shutdown drop-in tools live in
1295 - man: add more examples to man pages,
1296 - in particular an example how to do the equivalent of switching runlevels
1297 - man: maybe sort directives in man pages, and take sections from --help and apply them to man too
1298 - document root=gpt-auto properly
1301 - add systemctl switch to dump transaction without executing it
1302 - Add a verbose mode to "systemctl start" and friends that explains what is being done or not done
1303 - "systemctl disable" on a static unit prints no message and does
1304 nothing. "systemctl enable" does nothing, and gives a bad message
1305 about it. Should fix both to print nice actionable messages.
1306 - print nice message from systemctl --failed if there are no entries shown, and hook that into ExecStartPre of rescue.service/emergency.service
1307 - add new command to systemctl: "systemctl system-reexec" which reexecs as many daemons as virtually possible
1308 - systemctl enable: fail if target to alias into does not exist? maybe show how many units are enabled afterwards?
1309 - systemctl: "Journal has been rotated since unit was started." message is misleading
1310 - systemctl status output should include list of triggering units and their status
1312 * introduce an option (or replacement) for "systemctl show" that outputs all
1313 properties as JSON, similar to busctl's new JSON output. In contrast to that
1314 it should skip the variant type string though.
1316 * add an explicit "vertical" mode to format-table, so that "systemctl
1317 status"-like outputs (i.e. with a series of field names left and values
1318 right) become genuine first class citizens, and we gain automatic, sane JSON
1321 * Add a "systemctl list-units --by-slice" mode or so, which rearranges the
1322 output of "systemctl list-units" slightly by showing the tree structure of
1323 the slices, and the units attached to them.
1325 * add "systemctl wait" or so, which does what "systemd-run --wait" does, but
1326 for all units. It should be both a way to pin units into memory as well as a
1327 wait to retrieve their exit data.
1329 * show whether a service has out-of-date configuration in "systemctl status" by
1330 using mtime data of ConfigurationDirectory=.
1332 * "systemctl preset-all" should probably order the unit files it
1333 operates on lexicographically before starting to work, in order to
1334 ensure deterministic behaviour if two unit files conflict (like DMs
1337 * add "systemctl start -v foobar.service" that shows logs of a service
1338 while the start command runs. This is non-trivial to do without
1339 races though, since we should flush out all journal messages before
1340 returning from the "systemctl stop".
1342 * systemctl: if some operation fails, show log output?
1344 * Add a new verb "systemctl top"
1347 - "systemctl mask" should find all names by which a unit is accessible
1348 (i.e. by scanning for symlinks to it) and link them all to /dev/null
1351 - emulate /dev/kmsg using CUSE and turn off the syslog syscall
1352 with seccomp. That should provide us with a useful log buffer that
1353 systemd can log to during early boot, and disconnect container logs
1354 from the kernel's logs.
1355 - as soon as networkd has a bus interface, hook up --network-interface=,
1356 --network-bridge= with networkd, to trigger netdev creation should an
1357 interface be missing
1358 - a nice way to boot up without machine id set, so that it is set at boot
1359 automatically for supporting --ephemeral. Maybe hash the host machine id
1360 together with the machine name to generate the machine id for the container
1361 - fix logic always print a final newline on output.
1362 https://github.com/systemd/systemd/pull/272#issuecomment-113153176
1363 - should optionally support receiving WATCHDOG=1 messages from its payload
1365 - optionally automatically add FORWARD rules to iptables whenever nspawn is
1366 running, remove them when shut down.
1368 * nspawn: make --bind= work sanely with --private-users when uid mapping mounts
1371 * nspawn: add support for sysext extensions, too. i.e. a new --extension=
1372 switch that takes one or more arguments, and applies the extensions already
1375 * when main nspawn supervisor process gets suspended due to SIGSTOP/SIGTTOU or
1376 so, freeze the payload too.
1378 * machined: add API to acquire UID range. add API to mount/dissect loopback
1379 file. Both protected by PK. Then make nspawn use these APIs to run
1380 unprivileged containers. i.e. push the truly privileged bits into machined,
1381 so that the client side can remain entirely unprivileged, with SUID or
1384 * nspawn: support time namespaces
1386 * nspawn: on cgroupsv1 issue cgroup empty handler process based on host events,
1387 so that we make cgroup agent logic safe
1389 * nspawn/machined: add API to invoke binary in container, then use that as
1390 fallback in "machinectl shell"
1392 * nspawn: make nspawn suitable for shell pipelines: instead of triggering a
1393 hangup when input is finished, send ^D, which synthesizes an EOF. Then wait
1394 for hangup or ^D before passing on the EOF.
1396 * nspawn: greater control over selinux label?
1398 * nspawn: support that /proc, /sys/, /dev are pre-mounted
1401 - add an API so that libvirt-lxc can inform us about network interfaces being
1402 removed or added to an existing machine
1403 - "machinectl migrate" or similar to copy a container from or to a
1404 difference host, via ssh
1405 - introduce systemd-nspawn-ephemeral@.service, and hook it into
1406 "machinectl start" with a new --ephemeral switch
1407 - "machinectl status" should also show internal logs of the container in
1409 - "machinectl history"
1411 - "machinectl commit" that takes a writable snapshot of a tree, invokes a
1412 shell in it, and marks it read-only after use
1417 - add trigger --subsystem-match=usb/usb_device device
1418 - reimport udev db after MOVE events for devices without dev_t
1421 - save coredump in Windows/Mozilla minidump format
1422 - when truncating coredumps, also log the full size that the process had, and make a metadata field so we can report truncated coredumps
1424 * support crash reporting operation modes (https://live.gnome.org/GnomeOS/Design/Whiteboards/ProblemReporting)
1427 - apply "x" on "D" too (see patch from William Douglas)
1428 - instead of ignoring unknown fields, reject them.
1429 - creating new directories/subvolumes/fifos/device nodes
1430 should not follow symlinks. None of the other adjustment or creation
1431 calls follow symlinks.
1433 - teach tmpfiles.d q/Q logic something sensible in the context of XFS/ext4
1437 - Make sure ID_PATH is always exported and complete for
1438 network devices where possible, so we can safely rely
1442 - add support for more attribute types
1443 - inbuilt piping support (essentially degenerate async)? see loopback-setup.c and other places
1446 - add more keys to [Route] and [Address] sections
1447 - add support for more DHCPv4 options (and, longer term, other kinds of dynamic config)
1448 - add reduced [Link] support to .network files
1449 - properly handle routerless dhcp leases
1450 - work with non-Ethernet devices
1451 - dhcp: do we allow configuring dhcp routes on interfaces that are not the one we got the dhcp info from?
1452 - the DHCP lease data (such as NTP/DNS) is still made available when
1453 a carrier is lost on a link. It should be removed instantly.
1454 - expose in the API the following bits:
1455 - option 15, domain name
1456 - option 12, hostname and/or option 81, fqdn
1457 - option 123, 144, geolocation
1458 - option 252, configure http proxy (PAC/wpad)
1459 - provide a way to define a per-network interface default metric value
1460 for all routes to it. possibly a second default for DHCP routes.
1461 - allow Name= to be specified repeatedly in the [Match] section. Maybe also
1462 support Name=foo*|bar*|baz ?
1463 - whenever uplink info changes, make DHCP server send out FORCERENEW
1465 * in networkd, when matching device types, fix up DEVTYPE rubbish the kernel passes to us
1467 * Figure out how to do unittests of networkd's state serialization
1470 - figure out how much we can increase Maximum Message Size
1473 - add functions to set previously stored IPv6 addresses on startup and get
1474 them at shutdown; store them in client->ia_na
1475 - write more test cases
1476 - implement reconfigure support, see 5.3., 15.11. and 22.20.
1477 - implement support for temporary adressess (IA_TA)
1478 - implement dhcpv6 authentication
1479 - investigate the usefulness of Confirm messages; i.e. are there any
1480 situations where the link changes without any loss in carrier detection
1482 - some servers don't do rapid commit without a filled in IA_NA, verify