]> git.ipfire.org Git - thirdparty/systemd.git/blob - TODO
Merge pull request #7675 from shawnl/unaligned
[thirdparty/systemd.git] / TODO
1 Bugfixes:
2
3 * Should systemctl status \* work on all unit types, not just .service?
4
5 * Dangling symlinks of .automount unit files in .wants/ directories, set up
6 automount points even when the original .automount file did not exist
7 anymore. Only the .mount unit was still around.
8
9 * ExecStart with unicode characters fails in strv_split_extract:
10
11 [Service]
12 Environment=ONE='one' "TWO='two two' too" THREE=
13 ExecStart=/bin/python3 -c 'import sys;print(sys.argv)' $ONE $TWO $THREE
14
15 External:
16
17 * Fedora: add an rpmlint check that verifies that all unit files in the RPM are listed in %systemd_post macros.
18
19 * wiki: update journal format documentation for lz4 additions
20
21 Janitorial Clean-ups:
22
23 * Rearrange tests so that the various test-xyz.c match a specific src/basic/xyz.c again
24
25 Features:
26
27 * rework pid watching logic, allow any number of units watch the same pid
28
29 * be stricter with fds we receive for the fdstore: close them asynchronously
30
31 * be stricter with pid file and notify pids: don't allow them to be outside of cgroup, except if sender is privileged
32
33 * calenderspec: add support for week numbers and day numbers within a
34 year. This would allow us to define "bi-weekly" triggers safely.
35
36 * add support for recursive bpf firewalling as supported by the newest kernel
37
38 * add bpf-based implementation of devices cgroup controller logic for compat with cgroupsv2 as supported by newest kernel
39
40 * sd-bus: add vtable flag, that may be used to request client creds implicitly
41 and asynchronously before dispatching the operation
42
43 * implement transient socket unit.
44
45 * make systemd-run create transient path and socket unit.
46
47 * make use of ethtool veth peer info in machined, for automatically finding out
48 host-side interface pointing to the container.
49
50 * add some special mode to LogsDirectory=/StateDirectory=… that allows
51 declaring these directories without necessarily pulling in deps for them, or
52 creating them when starting up. That way, we could declare that
53 systemd-journald writes to /var/log/journal, which could be useful when we
54 doing disk usage calculations and so on.
55
56 * taint systemd if there are fewer than 65536 users assigned to the system.
57
58 * deprecate PermissionsStartOnly= and RootDirectoryStartOnly= in favour of the ExecStart= prefix chars
59
60 * add a new RuntimeDirectoryPreserve= mode that defines a similar lifecycle for
61 the runtime dir as we maintain for the fdstore: i.e. keep it around as long
62 as the unit is running or has a job queued.
63
64 * support projid-based quota in machinectl for containers, and then drop
65 implicit btrfs loopback magic in machined
66
67 * Add NetworkNamespacePath= to specify a path to a network namespace
68
69 * maybe use SOURCE_DATE_EPOCH (i.e. the env var the reproducible builds folks
70 introduced) as the RTC epoch, instead of the mtime of NEWS.
71
72 * add a way to lock down cgroup migration: a boolean, which when set for a unit
73 makes sure the processes in it can never migrate out of it
74
75 * blog about fd store and restartable services
76
77 * document Environment=SYSTEMD_LOG_LEVEL=debug drop-in in debugging document
78
79 * rework ExecOutput and ExecInput enums so that EXEC_OUTPUT_NULL loses its
80 magic meaning and is no longer upgraded to something else if set explicitly.
81
82 * in the long run: permit a system with /etc/machine-id linked to /dev/null, to
83 make it lose its identity, i.e. be anonymous. For this we'd have to patch
84 through the whole tree to make all code deal with the case where no machine
85 ID is available.
86
87 * optionally, collect cgroup resource data, and store it in per-unit RRD files,
88 suitable for processing with rrdtool. Add bus API to access this data, and
89 possibly implement a CPULoad property based on it.
90
91 * beef up pam_systemd to take unit file settings such as cgroups properties as
92 parameters
93
94 * a new "systemd-analyze security" tool outputting a checklist of security
95 features a service does and does not implement
96
97 * maybe hook of xfs/ext4 quotactl() with services? i.e. automatically manage
98 the quota of a the user indicated in User= via unit file settings, like the
99 other resource management concepts. Would mix nicely with DynamicUser=1. Or
100 alternatively, do this with projids, so that we can also cover services
101 running as root. Quota should probably cover all the special dirs such as
102 StateDirectory=, LogsDirectory=, CacheDirectory=, as well as RootDirectory= if it
103 is set, plus the whole disk space any image configured with RootImage=.
104
105 * Introduce "exit" as an EmergencyAction value, and allow to configure a
106 per-unit success/failure exit code to configure. This would be useful for
107 running commands inside of services inside of containers, which could then
108 propagate their failure state all the way up.
109
110 * In DynamicUser= mode: before selecting a UID, use disk quota APIs on relevant
111 disks to see if the UID is already in use.
112
113 * add dissect_image_warn() as a wrapper around dissect_image() that prints
114 friendly log messages for the returned errors, so that we don't have to
115 duplicate that in nspawn, systemd-dissect and PID 1.
116
117 * add "systemctl wait" or so, which does what "systemd-run --wait" does, but
118 for all units. It should be both a way to pin units into memory as well as a
119 wait to retrieve their exit data.
120
121 * maybe set a new set of env vars for services, based on RuntimeDirectory=,
122 StateDirectory=, LogsDirectory=, CacheDirectory= and ConfigurationDirectory=
123 automatically. For example, there could be $RUNTIME_DIRECTORY,
124 $STATE_DIRECTORY, $LOGS_DIRECTORY=, $CACHE_DIRECTORY and
125 $CONFIGURATION_DIRECTORY or so. This could be useful to write services that
126 can adapt to varying directories for these purposes. Special care has to be
127 taken if multiple dirs are configured. Maybe avoid setting the env vars in
128 that case?
129
130 * expose IO accounting data on the bus, show it in systemd-run --wait and log
131 about it in the resource log message
132
133 * add "systemctl purge" for flushing out configuration, state, logs, ... of a
134 unit when it is stopped
135
136 * show whether a service has out-of-date configuration in "systemctl status" by
137 using mtime data of ConfigurationDirectory=.
138
139 * replace all uses of fgets() + LINE_MAX by read_line()
140
141 * Add AddUser= setting to unit files, similar to DynamicUser=1 which however
142 creates a static, persistent user rather than a dynamic, transient user. We
143 can leverage code from sysusers.d for this.
144
145 * add some optional flag to ReadWritePaths= and friends, that has the effect
146 that we create the dir in question when the service is started. Example:
147
148 ReadWritePaths=:/var/lib/foobar
149
150 * maybe add call sd_journal_set_block_timeout() or so to set SO_SNDTIMEO for
151 the sd-journal logging socket, and, if the timeout is set to 0, sets
152 O_NONBLOCK on it. That way people can control if and when to block for
153 logging.
154
155 * tighten sd_notify() MAINPID= checks a bit: don't accept foreign PIDs (i.e.
156 PIDs not managed by the service manager)
157
158 * hostnamed: populate form factor data from a new hwdb database, so that old
159 yogas can be recognized as "convertible" too, even if they predate the DMI
160 "convertible" form factor
161
162 * Maybe add a small tool invoked early at boot, that adds in or resizes
163 partitions automatically, to be used when the media used is actually larger
164 than the image written onto it is.
165
166 * Maybe add PrivatePIDs= as new unit setting, and do minimal PID namespacing
167 after all. Be strict however, only support the equivalent of nspawn's
168 --as-pid2 switch, and sanely proxy sd_notify() messages dropping stuff such
169 as MAINPID.
170
171 * Add ExecMonitor= setting. May be used multiple times. Forks off a process in
172 the service cgroup, which is supposed to monitor the service, and when it
173 exits the service is considered failed by its monitor.
174
175 * track the per-service PAM process properly (i.e. as an additional control
176 process), so that it may be queried on the bus and everything.
177
178 * add a new "debug" job mode, that is propagated to unit_start() and for
179 services results in two things: we raise SIGSTOP right before invoking
180 execve() and turn off watchdog support. Then, use that to implement
181 "systemd-gdb" for attaching to the start-up of any system service in its
182 natural habitat.
183
184 * replace all canonicalize_file_name() invocations by chase_symlinks(), in
185 particulr those where a rootdir is relevant.
186
187 * maybe introduce gpt auto discovery for /var/tmp?
188
189 * maybe add gpt-partition-based user management: each user gets his own
190 LUKS-encrypted GPT partition with a new GPT type. A small nss module
191 enumerates users via udev partition enumeration. UIDs are assigned in a fixed
192 way: the partition index is added as offset to some fixed base uid. User name
193 is stored in GPT partition name. A PAM module authenticates the user via the
194 LUKS partition password. Benefits: strong per-user security, compatibility
195 with stateless/read-only/verity-enabled root. (other idea: do this based on
196 loopback files in /home, without GPT involvement)
197
198 * gpt-auto logic: introduce support for discovering /var matching an image. For
199 that, use a partition type UUID that is hashed from the OS name (as encoded
200 in /etc/os-release), the architecture, and 4 new bits from the gpt flags
201 field of the root partition. This way can easily support multiple OS
202 installations on the same GPT partition table, without problems with
203 unmatched /var partitions.
204
205 * gpt-auto logic: related to the above, maybe support a "secondary" root
206 partition, that is mounted to / and is writable, and where the actual root's
207 /usr is mounted into.
208
209 * 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
210
211 * drop nss-myhostname in favour of nss-resolve?
212
213 * add a percentage syntax for TimeoutStopSec=, e.g. TimeoutStopSec=150%, and
214 then use that for the setting used in user@.service. It should be understood
215 relative to the configured default value.
216
217 * in networkd, when matching device types, fix up DEVTYPE rubbish the kernel passes to us
218
219 * enable LockMLOCK to take a percentage value relative to physical memory
220
221 * Permit masking specific netlink APIs with RestrictAddressFamily=
222
223 * nspawn: support that /proc, /sys/, /dev are pre-mounted
224
225 * define gpt header bits to select volatility mode
226
227 * ProtectKernelLogs= (drops CAP_SYSLOG, add seccomp for syslog() syscall, and DeviceAllow to /dev/kmsg) in service files
228
229 * ProtectClock= (drops CAP_SYS_TIMES, adds seecomp filters for settimeofday, adjtimex), sets DeviceAllow o /dev/rtc
230
231 * ProtectTracing= (drops CAP_SYS_PTRACE, blocks ptrace syscall, makes /sys/kernel/tracing go away)
232
233 * ProtectMount= (drop mount/umount/pivot_root from seccomp, disallow fuse via DeviceAllow, imply Mountflags=slave)
234
235 * ProtectKeyRing= to take keyring calls away
236
237 * RemoveKeyRing= to remove all keyring entries of the specified user
238
239 * ProtectReboot= that masks reboot() and kexec_load() syscalls, prohibits kill
240 on PID 1 with the relevant signals, and makes relevant files in /sys and
241 /proc (such as the sysrq stuff) unavailable
242
243 * DeviceAllow= should also generate seccomp filters for mknod()
244
245 * make sure the ratelimit object can deal with USEC_INFINITY as way to turn off things
246
247 * journalctl: make sure -f ends when the container indicated by -M terminates
248
249 * mount: automatically search for "main" partition of an image has multiple
250 partitions
251
252 * expose the "privileged" flag of ExecCommand on the bus, and open it up to
253 transient units
254
255 * in nss-systemd, if we run inside of RootDirectory= with PrivateUsers= set,
256 find a way to map the User=/Group= of the service to the right name. This way
257 a user/group for a service only has to exist on the host for the right
258 mapping to work.
259
260 * add bus API for creating unit files in /etc, reusing the code for transient units
261
262 * add bus API to remove unit files from /etc
263
264 * add bus API to retrieve current unit file contents (i.e. implement "systemctl cat" on the bus only)
265
266 * rework fopen_temporary() to make use of open_tmpfile_linkable() (problem: the
267 kernel doesn't support linkat() that replaces existing files, currently)
268
269 * check if DeviceAllow= should split first, resolve specifiers later
270
271 * transient units: don't bother with actually setting unit properties, we
272 reload the unit file anyway
273
274 * journald: sigbus API via a signal-handler safe function that people may call
275 from the SIGBUS handler
276
277 * optionally, also require WATCHDOG=1 notifications during service start-up and shutdown
278
279 * resolved: when routing queries, make sure only look for the *longest* suffix...
280
281 * delay activation of logind until somebody logs in, or when /dev/tty0 pulls it
282 in or lingering is on (so that containers don't bother with it until PAM is used). also exit-on-idle
283
284 * cache sd_event_now() result from before the first iteration...
285
286 * add systemctl stop --job-mode=triggering that follows TRIGGERED_BY deps and adds them to the same transaction
287
288 * PID1: find a way how we can reload unit file configuration for
289 specific units only, without reloading the whole of systemd
290
291 * add an explicit parser for LimitRTPRIO= that verifies
292 the specified range and generates sane error messages for incorrect
293 specifications.
294
295 * when we detect that there are waiting jobs but no running jobs, do something
296
297 * push CPUAffinity= also into the "cpuset" cgroup controller (only after the cpuset controller got ported to the unified hierarchy)
298
299 * PID 1 should send out sd_notify("WATCHDOG=1") messages (for usage in the --user mode, and when run via nspawn)
300
301 * there's probably something wrong with having user mounts below /sys,
302 as we have for debugfs. for exmaple, src/core/mount.c handles mounts
303 prefixed with /sys generally special.
304 http://lists.freedesktop.org/archives/systemd-devel/2015-June/032962.html
305
306 * fstab-generator: default to tmpfs-as-root if only usr= is specified on the kernel cmdline
307
308 * docs: bring http://www.freedesktop.org/wiki/Software/systemd/MyServiceCantGetRealtime up to date
309
310 * mounting and unmounting mount points manually with different source
311 devices will result in collected on all devices used.
312 http://lists.freedesktop.org/archives/systemd-devel/2015-April/030225.html
313
314 * add a job mode that will fail if a transaction would mean stopping
315 running units. Use this in timedated to manage the NTP service
316 state.
317 http://lists.freedesktop.org/archives/systemd-devel/2015-April/030229.html
318
319 * Maybe add support for the equivalent of "ethtool advertise" to .link files?
320 http://lists.freedesktop.org/archives/systemd-devel/2015-April/030112.html
321
322 * The udev blkid built-in should expose a property that reflects
323 whether media was sensed in USB CF/SD card readers. This should then
324 be used to control SYSTEMD_READY=1/0 so that USB card readers aren't
325 picked up by systemd unless they contain a medium. This would mirror
326 the behaviour we already have for CD drives.
327
328 * networkd/udev: implement SR_IOV configuration in .link files:
329 http://lists.freedesktop.org/archives/systemd-devel/2015-January/027451.html
330
331 * Rework systemctl's GetAll property parsing to use the generic bus_map_all_properties() API
332
333 * Port various tools to make use of verbs.[ch], where applicable: busctl,
334 coredumpctl, hostnamectl, localectl, timedatectl
335
336 * hostnamectl: show root image uuid
337
338 * sysfs set api in libudev is not const
339
340 * Find a solution for SMACK capabilities stuff:
341 http://lists.freedesktop.org/archives/systemd-devel/2014-December/026188.html
342
343 * "systemctl preset-all" should probably order the unit files it
344 operates on lexicographically before starting to work, in order to
345 ensure deterministic behaviour if two unit files conflict (like DMs
346 do, for example)
347
348 * synchronize console access with BSD locks:
349 http://lists.freedesktop.org/archives/systemd-devel/2014-October/024582.html
350
351 * as soon as we have sender timestamps, revisit coalescing multiple parallel daemon reloads:
352 http://lists.freedesktop.org/archives/systemd-devel/2014-December/025862.html
353
354 * in systemctl list-unit-files: show the install value the presets would suggest for a service in a third column
355
356 * figure out when we can use the coarse timers
357
358 * add "systemctl start -v foobar.service" that shows logs of a service
359 while the start command runs. This is non-trivial to do without
360 races though, since we should flush out all journal messages before
361 returning from the "systemctl stop".
362
363 * 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
364
365 * maybe add support for specifier expansion in user.conf, specifically DefaultEnvironment=
366
367 * introduce systemd-timesync-wait.service or so to sync on an NTP fix?
368
369 * consider showing the unit names during boot up in the status output, not just the unit descriptions
370
371 * maybe allow timer units with an empty Units= setting, so that they
372 can be used for resuming the system but nothing else.
373
374 * what to do about udev db binary stability for apps? (raw access is not an option)
375
376 * maybe provide an API to allow migration of foreign PIDs into existing scopes.
377
378 * man: maybe use the word "inspect" rather than "introspect"?
379
380 * systemctl: if some operation fails, show log output?
381
382 * systemctl edit: use equvalent of cat() to insert existing config as a comment, prepended with #.
383 Upon editor exit, lines with one # are removed, lines with two # are left with one #, etc.
384
385 * exponential backoff in timesyncd when we cannot reach a server
386
387 * timesyncd: add ugly bus calls to set NTP servers per-interface, for usage by NM
388
389 * merge ~/.local/share and ~/.local/lib into one similar /usr/lib and /usr/share....
390
391 * systemd.show_status= should probably have a mode where only failed
392 units are shown.
393
394 * add systemd.abort_on_kill or some other such flag to send SIGABRT instead of SIGKILL
395 (throughout the codebase, not only PID1)
396
397 * resolved:
398 - mDNS/DNS-SD
399 - service registration
400 - service/domain/types browsing
401 - avahi compat
402 - DNS-SD service registration from socket units
403 - resolved should optionally register additional per-interface LLMNR
404 names, so that for the container case we can establish the same name
405 (maybe "host") for referencing the server, everywhere.
406 - allow clients to request DNSSEC for a single lookup even if DNSSEC is off (?)
407 - hook up resolved with machined-based address resolution
408
409 * refcounting in sd-resolve is borked
410
411 * Add a new verb "systemctl top"
412
413 * add new gpt type for btrfs volumes
414
415 * support empty /etc boots nicely:
416 - nspawn/gpt-generator: introduce new gpt partition type for /usr
417
418 * generator that automatically discovers btrfs subvolumes, identifies their purpose based on some xattr on them.
419
420 * a way for container managers to turn off getty starting via $container_headless= or so...
421
422 * figure out a nice way how we can let the admin know what child/sibling unit causes cgroup membership for a specific unit
423
424 * For timer units: add some mechanisms so that timer units that trigger immediately on boot do not have the services
425 they run added to the initial transaction and thus confuse Type=idle.
426
427 * add bus api to query unit file's X fields.
428
429 * gpt-auto-generator:
430 - Define new partition type for encrypted swap? Support probed LUKS for encrypted swap?
431 - Make /home automount rather than mount?
432
433 * add generator that pulls in systemd-network from containers when
434 CAP_NET_ADMIN is set, more than the loopback device is defined, even
435 when it is otherwise off
436
437 * MessageQueueMessageSize= (and suchlike) should use parse_iec_size().
438
439 * implement Distribute= in socket units to allow running multiple
440 service instances processing the listening socket, and open this up
441 for ReusePort=
442
443 * socket units: support creating sockets in different namespace,
444 opening it up for JoinsNamespaceOf=. This would require to fork off
445 a tiny process that joins the namespace and creates/binds the socket
446 and passes this back to PID1 via SCM_RIGHTS. This also could be used
447 to allow Chown/chgrp on sockets without requiring NSS in PID 1.
448
449 * introduce bus call FreezeUnit(s, b), as well as "systemctl freeze
450 $UNIT" and "systemctl thaw $UNIT" as wrappers around this. The calls
451 should SIGSTOP all unit processes in a loop until all processes of
452 it are fully stopped. This can later be used for app management by
453 desktop UIs such as gnome-shell to freeze apps that are not visible
454 on screen, not unlike how job control works on the shell
455
456 * cgroups:
457 - implement per-slice CPUFairScheduling=1 switch
458 - handle jointly mounted controllers correctly
459 - introduce high-level settings for RT budget, swappiness
460 - how to reset dynamically changed unit cgroup attributes sanely?
461 - when reloading configuration, apply new cgroup configuration
462 - when recursively showing the cgroup hierarchy, optionally also show
463 the hierarchies of child processes
464
465 * transient units:
466 - add field to transient units that indicate whether systemd or somebody else saves/restores its settings, for integration with libvirt
467 - ensure scope units may be started only a single time
468
469 * Automatically configure swap partition to use for hibernation by looking for largest swap partition on the root disk?
470
471 * when we detect low battery and no AC on boot, show pretty splash and refuse boot
472
473 * libsystemd-journal, libsystemd-login, libudev: add calls to easily attach these objects to sd-event event loops
474
475 * be more careful what we export on the bus as (usec_t) 0 and (usec_t) -1
476
477 * 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
478
479 * After coming back from hibernation reset hibernation swap partition using the /dev/snapshot ioctl APIs
480
481 * If we try to find a unit via a dangling symlink, generate a clean
482 error. Currently, we just ignore it and read the unit from the search
483 path anyway.
484
485 * refuse boot if /usr/lib/os-release is missing or /etc/machine-id cannot be set up
486
487 * man: the documentation of Restart= currently is very misleading and suggests the tools from ExecStartPre= might get restarted.
488
489 * load .d/*.conf dropins for device units
490
491 * allow implementation of InaccessibleDirectories=/ plus
492 ReadOnlyDirectories=... for whitelisting files for a service.
493
494 * sd-bus:
495 - EBADSLT handling
496 - GetAllProperties() on a non-existing object does not result in a failure currently
497 - port to sd-resolve for connecting to TCP dbus servers
498 - 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
499 - see if we can drop more message validation on the sending side
500 - add API to clone sd_bus_message objects
501 - longer term: priority inheritance
502 - dbus spec updates:
503 - NameLost/NameAcquired obsolete
504 - GVariant
505 - path escaping
506 - update systemd.special(7) to mention that dbus.socket is only about the compatibility socket now
507
508 * sd-event
509 - allow multiple signal handlers per signal?
510 - document chaining of signal handler for SIGCHLD and child handlers
511 - define more intervals where we will shift wakeup intervals around in, 1h, 6h, 24h, ...
512 - generate a failure of a default event loop is executed out-of-thread
513 - maybe add support for inotify events
514
515 * investigate endianness issues of UUID vs. GUID
516
517 * dbus: when a unit failed to load (i.e. is in UNIT_ERROR state), we
518 should be able to safely try another attempt when the bus call LoadUnit() is invoked.
519
520 * add a pam module that passes the hdd passphrase into the PAM stack and then expires it, for usage by gdm auto-login.
521
522 * add a pam module that on password changes updates any LUKS slot where the password matches
523
524 * maybe add a generator that looks for "systemd.run=" on the kernel cmdline for container usercases...
525
526 * test/:
527 - add 'set -e' to scripts in test/
528 - make stuff in test/ work with separate output dir
529
530 * seems that when we follow symlinks to units we prefer the symlink
531 destination path over /etc and /usr. We should not do that. Instead
532 /etc should always override /run+/usr and also any symlink
533 destination.
534
535 * when isolating, try to figure out a way how we implicitly can order
536 all units we stop before the isolating unit...
537
538 * teach ConditionKernelCommandLine= globs or regexes (in order to match foobar={no,0,off})
539
540 * BootLoaderSpec: Clarify that the kernel has to be in $BOOT. Clarify
541 that the boot loader should be installed to the ESP. Define a way
542 how an installer can figure out whether a BLS compliant boot loader
543 is installed.
544
545 * think about requeuing jobs when daemon-reload is issued? usecase:
546 the initrd issues a reload after fstab from the host is accessible
547 and we might want to requeue the mounts local-fs acquired through
548 that automatically.
549
550 * systemd-inhibit: make taking delay locks useful: support sending SIGINT or SIGTERM on PrepareForSleep()
551
552 * remove any syslog support from log.c — we probably cannot do this before split-off udev is gone for good
553
554 * shutdown logging: store to EFI var, and store to USB stick?
555
556 * merge unit_kill_common() and unit_kill_context()
557
558 * introduce ExecCondition= in services
559
560 * EFI:
561 - honor language efi variables for default language selection (if there are any?)
562 - honor timezone efi variables for default timezone selection (if there are any?)
563 - change bootctl to be backed by systemd-bootd to control temporary and persistent default boot goal plus efi variables
564
565 * maybe do not install getty@tty1.service symlink in /etc but in /usr?
566
567 * print a nicer explanation if people use variable/specifier expansion in ExecStart= for the first word
568
569 * mount: turn dependency information from /proc/self/mountinfo into dependency information between systemd units.
570
571 * logind:
572 - logind: optionally, ignore idle-hint logic for autosuspend, block suspend as long as a session is around
573 - When we update the kernel all kind of hibernation should be prohibited until shutdown/reboot
574 - logind: wakelock/opportunistic suspend support
575 - Add pretty name for seats in logind
576 - logind: allow showing logout dialog from system?
577 - we should probably handle SIGTERM/SIGINT to not leave dot files around, just in case
578 - session scopes/user unit: add RequiresMountsFor for the home directory of the user
579 - add Suspend() bus calls which take timestamps to fix double suspend issues when somebody hits suspend and closes laptop quickly.
580 - if pam_systemd is invoked by su from a process that is outside of a
581 any session we should probably just become a NOP, since that's
582 usually not a real user session but just some system code that just
583 needs setuid().
584 - logind: make the Suspend()/Hibernate() bus calls wait for the for
585 the job to be completed. before returning, so that clients can wait
586 for "systemctl suspend" to finish to know when the suspending is
587 complete.
588 - logind: when the power button is pressed short, just popup a
589 logout dialog. If it is pressed for 1s, do the usual
590 shutdown. Inspiration are Macs here.
591 - expose "Locked" property on logind sesison objects
592 - given that logind now lets PID 1 do all nasty work, we can
593 probably reduce the capability set it retains substantially.
594 (we need CAP_SYS_ADMIN for drmSetMaster(), so maybe not worth it)
595 - expose orientation sensors and tablet mode through logind
596 - maybe allow configuration of the StopTimeout for session scopes
597 - rename session scope so that it includes the UID. THat way
598 the session scope can be arranged freely in slices and we don't have
599 make assumptions about their slice anymore.
600 - follow PropertiesChanged state more closely, to deal with quick logouts and
601 relogins
602
603 * exec: when deinitializating a tty device fix the perms and group, too, not only when initializing. Set access mode/gid to 0620/tty.
604
605 * service: watchdog logic: for testing purposes allow ping, but do not require pong
606
607 * journal:
608 - consider introducing implicit _TTY= + _PPID= + _EUID= + _EGID= + _FSUID= + _FSGID= fields
609 - import and delete pstore filesystem content at startup
610 - journald: also get thread ID from client, plus thread name
611 - journal: when waiting for journal additions in the client always sleep at least 1s or so, in order to minimize wakeups
612 - add API to close/reopen/get fd for journal client fd in libsystemd-journal.
613 - fallback to /dev/log based logging in libsystemd-journal, if we cannot log natively?
614 - declare the local journal protocol stable in the wiki interface chart
615 - sd-journal: speed up sd_journal_get_data() with transparent hash table in bg
616 - journald: when dropping msgs due to ratelimit make sure to write
617 "dropped %u messages" not only when we are about to print the next
618 message that works, but alraedy after a short tiemout
619 - check if we can make journalctl by default use --follow mode inside of less if called without args?
620 - maybe add API to send pairs of iovecs via sd_journal_send
621 - journal: add a setgid "systemd-journal" utility to invoke from libsystemd-journal, which passes fds via STDOUT and does PK access
622 - journactl: support negative filtering, i.e. FOOBAR!="waldo",
623 and !FOOBAR for events without FOOBAR.
624 - journal: store timestamp of journal_file_set_offline() int he header,
625 so it is possible to display when the file was last synced.
626 - 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.
627 - journal: find a way to allow dropping history early, based on priority, other rules
628 - journal: When used on NFS, check payload hashes
629 - journald: add kernel cmdline option to disable ratelimiting for debug purposes
630 - refuse taking lower-case variable names in sd_journal_send() and friends.
631 - journald: we currently rotate only after MaxUse+MaxFilesize has been reached.
632 - journal: deal nicely with byte-by-byte copied files, especially regards header
633 - journal: sanely deal with entries which are larger than the individual file size, but where the components would fit
634 - Replace utmp, wtmp, btmp, and lastlog completely with journal
635 - journalctl: instead --after-cursor= maybe have a --cursor=XYZ+1 syntax?
636 - when a kernel driver logs in a tight loop, we should ratelimit that too.
637 - journald: optionally, log debug messages to /run but everything else to /var
638 - journald: when we drop syslog messages because the syslog socket is
639 full, make sure to write how many messages are lost as first thing
640 to syslog when it works again.
641 - change systemd-journal-flush into a service that stays around during
642 boot, and causes the journal to be moved back to /run on shutdown,
643 so that we do not keep /var busy. This needs to happen synchronously,
644 hence doing this via signals is not going to work.
645 - optionally support running journald from the command line for testing purposes in external projects
646 - journald: allow per-priority and per-service retention times when rotating/vacuuming
647 - journald: make use of uid-range.h to managed uid ranges to split
648 journals in.
649 - journalctl: add the ability to look for the most recent process of a binary. journalctl /usr/bin/X11 --pid=-1 or so...
650 - improve journalctl performance by loading journal files
651 lazily. Encode just enough information in the file name, so that we
652 do not have to open it to know that it is not interesting for us, for
653 the most common operations.
654 - journal-or-kmsg is currently broken? See reverted
655 commit 4a01181e460686d8b4a543b1dfa7f77c9e3c5ab8.
656 - man: document that corrupted journal files is nothing to act on
657 - rework journald sigbus stuff to use mutex
658 - Set RLIMIT_NPROC for systemd-journal-xyz, and all other of our
659 services that run under their own user ids, and use User= (but only
660 in a world where userns is ubiquitous since otherwise we cannot
661 invoke those daemons on the host AND in a container anymore). Also,
662 if LimitNPROC= is used without User= we should warn and refuse
663 operation.
664 - journalctl --verify: don't show files that are currently being
665 written to as FAIL, but instead show that their are being written to.
666 - add journalctl -H that talks via ssh to a remote peer and passes through
667 binary logs data
668 - add a version of --merge which also merges /var/log/journal/remote
669 - journalctl: -m should access container journals directly by enumerating
670 them via machined, and also watch containers coming and going.
671 Benefit: nspawn --ephemeral would start working nicely with the journal.
672 - assign MESSAGE_ID to log messages about failed services
673
674 * add a test if all entries in the catalog are properly formatted.
675 (Adding dashes in a catalog entry currently results in the catalog entry
676 being silently skipped. journalctl --update-catalog must warn about this,
677 and we should also have a unit test to check that all our message are OK.)
678
679 * document:
680 - document that deps in [Unit] sections ignore Alias= fields in
681 [Install] units of other units, unless those units are disabled
682 - man: clarify that time-sync.target is not only sysv compat but also useful otherwise. Same for similar targets
683 - document that service reload may be implemented as service reexec
684 - add a man page containing packaging guidelines and recommending usage of things like Documentation=, PrivateTmp=, PrivateNetwork= and ReadOnlyDirectories=/etc /usr.
685 - document systemd-journal-flush.service properly
686 - documentation: recommend to connect the timer units of a service to the service via Also= in [Install]
687 - man: document the very specific env the shutdown drop-in tools live in
688 - man: add more examples to man pages
689 - man: maybe sort directives in man pages, and take sections from --help and apply them to man too
690
691 * systemctl:
692 - add systemctl switch to dump transaction without executing it
693 - Add a verbose mode to "systemctl start" and friends that explains what is being done or not done
694 - "systemctl disable" on a static unit prints no message and does
695 nothing. "systemctl enable" does nothing, and gives a bad message
696 about it. Should fix both to print nice actionable messages.
697 - print nice message from systemctl --failed if there are no entries shown, and hook that into ExecStartPre of rescue.service/emergency.service
698 - add new command to systemctl: "systemctl system-reexec" which reexecs as many daemons as virtually possible
699 - systemctl enable: fail if target to alias into does not exist? maybe show how many units are enabled afterwards?
700 - systemctl: "Journal has been rotated since unit was started." message is misleading
701 - systemctl status output should include list of triggering units and their status
702
703 * unit install:
704 - "systemctl mask" should find all names by which a unit is accessible
705 (i.e. by scanning for symlinks to it) and link them all to /dev/null
706
707 * timer units:
708 - timer units should get the ability to trigger when:
709 o CLOCK_REALTIME makes jumps (TFD_TIMER_CANCEL_ON_SET)
710 o DST changes
711 - Modulate timer frequency based on battery state
712
713 * add libsystemd-password or so to query passwords during boot using the password agent logic
714
715 * clean up date formatting and parsing so that all absolute/relative timestamps we format can also be parsed
716
717 * on shutdown: move utmp, wall, audit logic all into PID 1 (or logind?), get rid of systemd-update-utmp-runlevel
718
719 * make repeated alt-ctrl-del presses printing a dump
720
721 * hostnamed: before returning information from /etc/machine-info.conf check the modification data and reread. Similar for localed, ...
722
723 * currently x-systemd.timeout is lost in the initrd, since crypttab is copied into dracut, but fstab is not
724
725 * nspawn:
726 - emulate /dev/kmsg using CUSE and turn off the syslog syscall
727 with seccomp. That should provide us with a useful log buffer that
728 systemd can log to during early boot, and disconnect container logs
729 from the kernel's logs.
730 - as soon as networkd has a bus interface, hook up --network-interface=,
731 --network-bridge= with networkd, to trigger netdev creation should an
732 interface be missing
733 - a nice way to boot up without machine id set, so that it is set at boot
734 automatically for supporting --ephemeral. Maybe hash the host machine id
735 together with the machine name to generate the machine id for the container
736 - fix logic always print a final newline on output.
737 https://github.com/systemd/systemd/pull/272#issuecomment-113153176
738 - should optionally support receiving WATCHDOG=1 messages from its payload
739 PID 1...
740 - optionally automatically add FORWARD rules to iptables whenever nspawn is
741 running, remove them when shut down.
742 - maybe make copying of /etc/resolv.conf optional, and skip it if --read-only
743 is used
744
745 * dissect
746 - refuse mounting over a mount point
747 - automatically discover .roothash files in dissect, similarly to nspawn
748
749 * machined:
750 - add an API so that libvirt-lxc can inform us about network interfaces being
751 removed or added to an existing machine
752 - "machinectl migrate" or similar to copy a container from or to a
753 difference host, via ssh
754 - introduce systemd-nspawn-ephemeral@.service, and hook it into
755 "machinectl start" with a new --ephemeral switch
756 - "machinectl status" should also show internal logs of the container in
757 question
758 - "machinectl list-images" should show os-release data, as well as
759 machine-info data (including deployment level)
760 - "machinectl history"
761 - "machinectl diff"
762 - "machinectl commit" that takes a writable snapshot of a tree, invokes a
763 shell in it, and marks it read-only after use
764
765 * importd:
766 - generate a nice warning if mkfs.btrfs is missing
767
768 * cryptsetup:
769 - cryptsetup-generator: allow specification of passwords in crypttab itself
770 - support rd.luks.allow-discards= kernel cmdline params in cryptsetup generator
771
772 * hw watchdog: optionally try to use the preset watchdog timeout instead of always overriding it
773 https://bugs.freedesktop.org/show_bug.cgi?id=54712
774
775 * create /sbin/init symlinks from the build system
776
777 * add a dependency on standard-conf.xml and other included files to man pages
778
779 * MountFlags=shared acts as MountFlags=slave right now.
780
781 * properly handle loop back mounts via fstab, especially regards to fsck/passno
782
783 * initialize the hostname from the fs label of /, if /etc/hostname does not exist?
784
785 * udev:
786 - move to LGPL
787 - kill scsi_id
788 - add trigger --subsystem-match=usb/usb_device device
789 - reimport udev db after MOVE events for devices without dev_t
790
791 * There's currently no way to cancel fsck (used to be possible via C-c or c on the console)
792
793 * add option to sockets to avoid activation. Instead just drop packets/connections, see http://cyberelk.net/tim/2012/02/15/portreserve-systemd-solution/
794
795 * coredump:
796 - save coredump in Windows/Mozilla minidump format
797 - when truncating coredumps, also log the full size that the process had, and make a metadata field so we can report truncated coredumps
798
799 * support crash reporting operation modes (https://live.gnome.org/GnomeOS/Design/Whiteboards/ProblemReporting)
800
801 * default to actual 32-bit PIDs, via /proc/sys/kernel/pid_max
802
803 * be able to specify a forced restart of service A where service B depends on, in case B
804 needs to be auto-respawned?
805
806 * tmpfiles:
807 - apply "x" on "D" too (see patch from William Douglas)
808 - replace F with f+.
809 - instead of ignoring unknown fields, reject them.
810 - creating new directories/subvolumes/fifos/device nodes
811 should not follow symlinks. None of the other adjustment or creation
812 calls follow symlinks.
813
814 * make sure systemd-ask-password-wall does not shutdown systemd-ask-password-console too early
815
816 * verify that the AF_UNIX sockets of a service in the fs still exist
817 when we start a service in order to avoid confusion when a user
818 assumes starting a service is enough to make it accessible
819
820 * Make it possible to set the keymap independently from the font on
821 the kernel cmdline. Right now setting one resets also the other.
822
823 * and a dbus call to generate target from current state
824
825 * write blog stories about:
826 - hwdb: what belongs into it, lsusb
827 - enabling dbus services
828 - how to make changes to sysctl and sysfs attributes
829 - remote access
830 - how to pass throw-away units to systemd, or dynamically change properties of existing units
831 - testing with Harald's awesome test kit
832 - auto-restart
833 - how to develop against journal browsing APIs
834 - the journal HTTP iface
835 - non-cgroup resource management
836 - dynamic resource management with cgroups
837 - refreshed, longer missions statement
838 - calendar time events
839 - init=/bin/sh vs. "emergency" mode, vs. "rescue" mode, vs. "multi-user" mode, vs. "graphical" mode, and the debug shell
840 - how to create your own target
841 - instantiated apache, dovecot and so on
842 - hooking a script into various stages of shutdown/rearly booot
843
844 * investigate whether the gnome pty helper should be moved into systemd, to provide cgroup support.
845
846 * dot output for --test showing the 'initial transaction'
847
848 * pid1:
849 - When logging about multiple units (stopping BoundTo units, conflicts, etc.),
850 log both units as UNIT=, so that journalctl -u triggers on both.
851 - generate better errors when people try to set transient properties
852 that are not supported...
853 http://lists.freedesktop.org/archives/systemd-devel/2015-February/028076.html
854 - maybe introduce WantsMountsFor=? Usecase:
855 http://lists.freedesktop.org/archives/systemd-devel/2015-January/027729.html
856 - recreate systemd's D-Bus private socket file on SIGUSR2
857 - move PAM code into its own binary
858 - when we automatically restart a service, ensure we restart its rdeps, too.
859 - hide PAM options in fragment parser when compile time disabled
860 - Support --test based on current system state
861 - 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().
862 - after deserializing sockets in socket.c we should reapply sockopts and things
863 - drop PID 1 reloading, only do reexecing (difficult: Reload()
864 currently is properly synchronous, Reexec() is weird, because we
865 cannot delay the response properly until we are back, so instead of
866 being properly synchronous we just keep open the fd and close it
867 when done. That means clients do not get a successful method reply,
868 but much rather a disconnect on success.
869 - when breaking cycles drop sysv services first, then services from /run, then from /etc, then from /usr
870 - when a bus name of a service disappears from the bus make sure to queue further activation requests
871
872 * unit files:
873 - allow port=0 in .socket units
874 - maybe introduce ExecRestartPre=
875 - add ReloadSignal= for configuring a reload signal to use
876 - implement Register= switch in .socket units to enable registration
877 in Avahi, RPC and other socket registration services.
878 - allow Type=simple with PIDFile=
879 https://bugzilla.redhat.com/show_bug.cgi?id=723942
880 - allow writing multiple conditions in unit files on one line
881 - load-fragment: when loading a unit file via a chain of symlinks
882 verify that it is not masked via any of the names traversed.
883 - introduce Type=pid-file
884 - introduce mix of BindTo and Requisite
885 - add a concept of RemainAfterExit= to scope units
886 - Allow multiple ExecStart= for all Type= settings, so that we can cover rescue.service nicely
887
888 * udev-link-config:
889 - Make sure ID_PATH is always exported and complete for
890 network devices where possible, so we can safely rely
891 on Path= matching
892 - check MTUBytes parsing (expecting size_t but we are using unsigned)
893
894 * sd-rtnl:
895 - add support for more attribute types
896 - inbuilt piping support (essentially degenerate async)? see loopback-setup.c and other places
897
898 * networkd:
899 - add more keys to [Route] and [Address] sections
900 - add support for more DHCPv4 options (and, longer term, other kinds of dynamic config)
901 - add proper initrd support (in particular generate .network/.link files based on /proc/cmdline)
902 - add reduced [Link] support to .network files
903 - add Scope= parsing option for [Network]
904 - properly handle routerless dhcp leases
905 - work with non-Ethernet devices
906 - add support for more bond options
907 - dhcp: do we allow configuring dhcp routes on interfaces that are not the one we got the dhcp info from?
908 - the DHCP lease data (such as NTP/DNS) is still made available when
909 a carrier is lost on a link. It should be removed instantly.
910 - expose in the API the following bits:
911 - option 15, domain name and/or option 119, search list
912 - option 12, host name and/or option 81, fqdn
913 - option 123, 144, geolocation
914 - option 252, configure http proxy (PAC/wpad)
915 - provide a way to define a per-network interface default metric value
916 for all routes to it. possibly a second default for DHCP routes.
917 - allow Name= to be specified repeatedly in the [Match] section. Maybe also
918 support Name=foo*|bar*|baz ?
919 - duplicate address check for static IPs (like ARPCHECK in network-scripts)
920 - allow DUID/IAID to be customized, see issue #394.
921 - whenever uplink info changes, make DHCP server send out FORCERENEW
922
923 * networkd-wait-online:
924 - make operstates to wait for configurable?
925
926 * dhcp:
927 - figure out how much we can increase Maximum Message Size
928
929 * dhcp6:
930 - add functions to set previously stored IPv6 addresses on startup and get
931 them at shutdown; store them in client->ia_na
932 - write more test cases
933 - implement reconfigure support, see 5.3., 15.11. and 22.20.
934 - implement support for temporary adressess (IA_TA)
935 - implement dhcpv6 authentication
936 - investigate the usefulness of Confirm messages; i.e. are there any
937 situations where the link changes without any loss in carrier detection
938 or interface down
939 - some servers don't do rapid commit without a filled in IA_NA, verify
940 this behavior
941 - RouteTable= ?
942
943 External:
944
945 * dbus:
946 - natively watch for dbus-*.service symlinks (PENDING)
947 - teach dbus to activate all services it finds in /etc/systemd/services/org-*.service
948
949 * fix alsa mixer restore to not print error when no config is stored
950
951 * make cryptsetup lower --iter-time
952
953 * patch kernel for xattr support in /dev, /proc/, /sys?
954
955 * kernel: add device_type = "fb", "fbcon" to class "graphics"
956
957 * drop accountsservice's StandardOutput=syslog and Type=dbus fields
958
959 * /usr/bin/service should actually show the new command line
960
961 * 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=
962
963 * fedora: F20: go timer units all the way, leave cron.daily for cron
964
965 * neither pkexec nor sudo initialize environ[] from the PAM environment?
966
967 * fedora: update policy to declare access mode and ownership of unit files to root:root 0644, and add an rpmlint check for it
968
969 * register catalog database signature as file magic
970
971 * zsh shell completion:
972 - <command> <verb> -<TAB> should complete options, but currently does not
973 - systemctl add-wants,add-requires
974
975
976 Regularly:
977
978 * look for close() vs. close_nointr() vs. close_nointr_nofail()
979
980 * check for strerror(r) instead of strerror(-r)
981
982 * pahole
983
984 * set_put(), hashmap_put() return values check. i.e. == 0 does not free()!
985
986 * use secure_getenv() instead of getenv() where appropriate
987
988 * link up selected blog stories from man pages and unit files Documentation= fields