diff options
Diffstat (limited to 'TODO')
| -rw-r--r-- | TODO | 131 |
1 files changed, 97 insertions, 34 deletions
@@ -12,9 +12,6 @@ Bugfixes: Environment=ONE='one' "TWO='two two' too" THREE= ExecStart=/bin/python3 -c 'import sys;print(sys.argv)' $ONE $TWO $THREE -* When systemctl --host is used, underlying ssh connection can remain open. - bus_close does not kill children? - External: * Fedora: add an rpmlint check that verifies that all unit files in the RPM are listed in %systemd_post macros. @@ -23,15 +20,102 @@ External: Janitorial Clean-ups: -* code cleanup: retire FOREACH_WORD_QUOTED, port to extract_first_word() loops instead. - For example, most conf parsing callbacks should use it. - -* replace manual readdir() loops with FOREACH_DIRENT or FOREACH_DIRENT_ALL - * Rearrange tests so that the various test-xyz.c match a specific src/basic/xyz.c again Features: +* sort generated hwdb files alphabetically when we import them, so that git + diffs remain minimal (in particular: the OUI databases we import are not + sorted, and not stable) + +* set SystemCallArchitectures=native on all our services + +* maybe add call sd_journal_set_block_timeout() or so to set SO_SNDTIMEO for + the sd-journal logging socket, and, if the timeout is set to 0, sets + O_NONBLOCK on it. That way people can control if and when to block for + logging. + +* tighten sd_notify() MAINPID= checks a bit: don't accept foreign PIDs (i.e. + PIDs not managed by the service manager) + +* journald: when we recv a log datagram via the native or syslog transports, + search for the PID in the active stream connections, and let's make sure to + always process the datagrams before the streams. Then, cache client metadata + per stream in the stream object. This way we can somewhat fix the race with + quickly exiting processes which log as long as they had their own stream + connection... + +* hostnamed: populate form factor data from a new hwdb database, so that old + yogas can be recognized as "convertible" too, even if they predate the DMI + "convertible" form factor + +* Maybe add a small tool invoked early at boot, that adds in or resizes + partitions automatically, to be used when the media used is actually larger + than the image written onto it is. + +* Maybe add PrivatePIDs= as new unit setting, and do minimal PID namespacing + after all. Be strict however, only support the equivalent of nspawn's + --as-pid2 switch, and sanely proxy sd_notify() messages dropping stuff such + as MAINPID. + +* change the dependency Set* objects in Unit structures to become Hashmap*, and + then store a bit mask who created a specific dependency: the source unit via + fragment configuration, the destination unit via fragment configuration, or + the source unit via udev rules (in case of .device units), or any combination + thereof. This information can then be used to flush out old udev-created + dependencies when the udev properties change, and eventually to implement a + "systemctl refresh" operation for reloading the configuration of individual + units without reloading the whole set. + +* Add ExecMonitor= setting. May be used multiple times. Forks off a process in + the service cgroup, which is supposed to monitor the service, and when it + exits the service is considered failed by its monitor. + +* track the per-service PAM process properly (i.e. as an additional control + process), so that it may be queried on the bus and everything. + +* add a new "debug" job mode, that is propagated to unit_start() and for + services results in two things: we raise SIGSTOP right before invoking + execve() and turn off watchdog support. Then, use that to implement + "systemd-gdb" for attaching to the start-up of any system service in its + natural habitat. + +* replace all canonicalize_file_name() invocations by chase_symlinks(), in + particulr those where a rootdir is relevant. + +* maybe introduce gpt auto discovery for /var/tmp? + +* set ProtectSystem=strict for all our usual services. + +* fix PrivateNetwork= so that we fall back gracefully on kernels lacking + namespacing support (similar for the other namespacing options) + +* maybe add gpt-partition-based user management: each user gets his own + LUKS-encrypted GPT partition with a new GPT type. A small nss module + enumerates users via udev partition enumeration. UIDs are assigned in a fixed + way: the partition index is added as offset to some fixed base uid. User name + is stored in GPT partition name. A PAM module authenticates the user via the + LUKS partition password. Benefits: strong per-user security, compatibility + with stateless/read-only/verity-enabled root. (other idea: do this based on + loopback files in /home, without GPT involvement) + +* gpt-auto logic: introduce support for discovering /var matching an image. For + that, use a partition type UUID that is hashed from the OS name (as encoded + in /etc/os-release), the architecture, and 4 new bits from the gpt flags + field of the root partition. This way can easily support multiple OS + installations on the same GPT partition table, without problems with + unmatched /var partitions. + +* gpt-auto logic: related to the above, maybe support a "secondary" root + partition, that is mounted to / and is writable, and where the actual root's + /usr is mounted into. + +* machined: add apis to query /etc/machine-info data of a container + +* .mount and .swap units: add Format=yes|no option that formats the partition before mounting/enabling it, implicitly + +* 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 + * drop nss-myhostname in favour of nss-resolve? * drop internal dlopen() based nss-dns fallback in nss-resolve, and rely on the @@ -49,8 +133,6 @@ Features: * switch to ProtectSystem=strict for all our long-running services where that's possible -* If RootDirectory= is used, mount /proc, /sys, /dev into it, if not mounted yet - * Permit masking specific netlink APIs with RestrictAddressFamily= * nspawn: start UID allocation loop from hash of container name @@ -59,14 +141,10 @@ Features: * define gpt header bits to select volatility mode -* nspawn: mount loopback filesystems with "discard" - * ProtectKernelLogs= (drops CAP_SYSLOG, add seccomp for syslog() syscall, and DeviceAllow to /dev/kmsg) in service files * ProtectClock= (drops CAP_SYS_TIMES, adds seecomp filters for settimeofday, adjtimex), sets DeviceAllow o /dev/rtc -* ProtectKernelModules= (drops CAP_SYS_MODULE and filters the kmod syscalls) - * ProtectTracing= (drops CAP_SYS_PTRACE, blocks ptrace syscall, makes /sys/kernel/tracing go away) * ProtectMount= (drop mount/umount/pivot_root from seccomp, disallow fuse via DeviceAllow, imply Mountflags=slave) @@ -84,12 +162,6 @@ Features: * Add DataDirectory=, CacheDirectory= and LogDirectory= to match RuntimeDirectory=, and create it as necessary when starting a service, owned by the right user. -* Add BindDirectory= for allowing arbitrary, private bind mounts for services - -* Add RootImage= for mounting a disk image or file as root directory - -* RestrictNamespaces= or so in services (taking away the ability to create namespaces, with setns, unshare, clone) - * make sure the ratelimit object can deal with USEC_INFINITY as way to turn off things * journalctl: make sure -f ends when the container indicated by -M terminates @@ -124,8 +196,6 @@ Features: * journald: sigbus API via a signal-handler safe function that people may call from the SIGBUS handler -* move specifier expansion from service_spawn() into load-fragment.c - * optionally, also require WATCHDOG=1 notifications during service start-up and shutdown * resolved: when routing queries, make sure only look for the *longest* suffix... @@ -274,7 +344,6 @@ Features: * support empty /etc boots nicely: - nspawn/gpt-generator: introduce new gpt partition type for /usr - - fstab-generator: support systemd.volatile=yes|no|state on the kernel cmdline, too, similar to nspawn's --volatile= * generator that automatically discovers btrfs subvolumes, identifies their purpose based on some xattr on them. @@ -287,12 +356,9 @@ Features: * For timer units: add some mechanisms so that timer units that trigger immediately on boot do not have the services they run added to the initial transaction and thus confuse Type=idle. -* Run most system services with cgroupfs read-only and procfs with a more secure mode (doesn't work, since the hidepid= option is per-pid-namespace, not per-mount) - * add bus api to query unit file's X fields. * gpt-auto-generator: - - Support LUKS for root devices - Define new partition type for encrypted swap? Support probed LUKS for encrypted swap? - Make /home automount rather than mount? @@ -350,8 +416,6 @@ Features: * refuse boot if /usr/lib/os-release is missing or /etc/machine-id cannot be set up -* btrfs raid assembly: some .device jobs stay stuck in the queue - * man: the documentation of Restart= currently is very misleading and suggests the tools from ExecStartPre= might get restarted. * load .d/*.conf dropins for device units @@ -569,7 +633,6 @@ Features: - man: maybe sort directives in man pages, and take sections from --help and apply them to man too * systemctl: - - systemctl list-jobs - show dependencies - add systemctl switch to dump transaction without executing it - Add a verbose mode to "systemctl start" and friends that explains what is being done or not done - "systemctl disable" on a static unit prints no message and does @@ -590,7 +653,6 @@ Features: - timer units should get the ability to trigger when: o CLOCK_REALTIME makes jumps (TFD_TIMER_CANCEL_ON_SET) o DST changes - - Support 2012-02~4 as syntax for specifying the fourth to last day of the month. - Modulate timer frequency based on battery state * add libsystemd-password or so to query passwords during boot using the password agent logic @@ -599,15 +661,13 @@ Features: * on shutdown: move utmp, wall, audit logic all into PID 1 (or logind?), get rid of systemd-update-utmp-runlevel -* make repeated alt-ctrl-del presses printing a dump, or even force a reboot without - waiting for the timeout +* make repeated alt-ctrl-del presses printing a dump * hostnamed: before returning information from /etc/machine-info.conf check the modification data and reread. Similar for localed, ... * currently x-systemd.timeout is lost in the initrd, since crypttab is copied into dracut, but fstab is not * nspawn: - - nspawn -x should support ephemeral instances of gpt images - emulate /dev/kmsg using CUSE and turn off the syslog syscall with seccomp. That should provide us with a useful log buffer that systemd can log to during early boot, and disconnect container logs @@ -630,6 +690,10 @@ Features: - maybe make copying of /etc/resolv.conf optional, and skip it if --read-only is used +* dissect + - refuse mounting over a mount point + - automatically discover .roothash files in dissect, similarly to nspawn + * machined: - add an API so that libvirt-lxc can inform us about network interfaces being removed or added to an existing machine @@ -744,7 +808,6 @@ Features: - maybe introduce WantsMountsFor=? Usecase: http://lists.freedesktop.org/archives/systemd-devel/2015-January/027729.html - recreate systemd's D-Bus private socket file on SIGUSR2 - - GC unreferenced jobs (such as .device jobs) - move PAM code into its own binary - when we automatically restart a service, ensure we restart its rdeps, too. - hide PAM options in fragment parser when compile time disabled |