Merge v243 into tizen

systemd v243

1 files changed, 81 insertions, 50 deletions

diff --git a/TODO b/TODO
index e94ea01043..db28b52929 100644
--- a/TODO
+++ b/TODO
@@ -19,19 +19,83 @@ Janitorial Clean-ups:
 
 Features:
 
+* coredump: maybe when coredumping read a new xattr from /proc/$PID/exe that
+  may be used to mark a whole binary as non-coredumpable. Would fix:
+  https://bugs.freedesktop.org/show_bug.cgi?id=69447
+
+* beef up hibernation to optionally do swapon/swapoff immediately before/after
+  the hibernation
+
+* beef up s2h to implement a battery watch loop: instead of entering
+  hibernation unconditionally after coming back from resume make a decision
+  based on the battery load level: if battery level is above a specific
+  threshold, go to suspend again, only hibernate if below it. This means we'd
+  stick to suspend usually, but fall back to hibernation only when battery runs
+  empty (well, subject to our sampling interval). Related to this, check if we
+  can make ACPI _BTP (i.e. /sys/class/power_supply/*/alarm) work for us too,
+  i.e. see if it can wake up machines from suspend, so that we could resume
+  automatically when the system is low on power and move automatically to
+  hibernation mode. (see
+  https://uefi.org/sites/default/files/resources/ACPI%206_2_A_Sept29.pdf
+  section 10.2.2.8 and
+  https://docs.microsoft.com/en-us/windows-hardware/design/device-experiences/modern-standby-wake-sources
+  at the end).
+
+* add an explicit "vertical" mode to format-table, so that "systemctl
+  status"-like outputs (i.e. with a series of field names left and values
+  right) become genuine first class citizens, and we gain automatic, sane JSON
+  output for them.
+
+* dissector: invoke fsck on the file systems we encounter, after all ext4 is
+  still pretty popular (and we mount the ESP too with it after all, which is
+  fat)
+
+* systemd-firstboot: teach it dissector magic, so that you can point it to some
+  disk image and it will just set everything in it all behind the scenes.
+
+* systemd-firstboot: add --force mode that replaces existing configuration.
+
+* We should probably replace /var/log/README, /etc/rc.d/README with symlinks
+  that are linked to these places instead of copied. After all they are
+  constant vendor data.
+
+* maybe add kernel cmdline params: 1) to force first-boot mode + 2) to force
+  random seed crediting
+
+* nspawn: on cgroupsv1 issue cgroup empty handler process based on host events,
+  so that we make cgroup agent logic safe
+
+* nspawn/machined: add API to invoke binary in container, then use that as
+  fallback in "machinectl shell"
+
+* logind: rework pam_logind to also do a bus call in case of invocation from
+  user@.service, which returns the XDG_RUNTIME_DIR value, and make this
+  behaviour selectable via pam module option.
+
+* introduce a new per-process uuid, similar to the boot id, the machine id, the
+  invocation id, that is derived from process creds, specifically a hashed
+  combination of AT_RANDOM + getpid() + the starttime from
+  /proc/self/status. Then add these ids implicitly when logging. Deriving this
+  uuid from these three things has the benefit that it can be derived easily
+  from /proc/$PID/ in a stable, and unique way that changes on both fork() and
+  exec().
+
+* let's not GC a unit while its ratelimits are still pending
+
+* when killing due to service watchdog timeout maybe detect whether target
+  process is under ptracing and then log loudly and continue instead.
+
+* introduce a new group to own TPM devices
+
+* make rfkill uaccess controllable by default, i.e. steal rule from
+  gnome-bluetooth and friends
+
 * tweak journald context caching. In addition to caching per-process attributes
   keyed by PID, cache per-cgroup attributes (i.e. the various xattrs we read)
   keyed by cgroup path, and guarded by ctime changes. This should provide us
   with a nice speed-up on services that have many processes running in the same
   cgroup.
 
-* clean up sleep.c:
-  - Use CLOCK_BOOTTIME_ALARM for waking up s2h instead of RTC ioctls
-  - Parse sleep.conf only once, and parse its whole contents so that we don't
-    have to parse it again and again in s2h
-  - Make sure resume= and resume_offset= on the kernel cmdline always take
-    precedence
-
 * make MAINPID= message reception checks even stricter: if service uses User=,
   then check sending UID and ignore message if it doesn't match the user or
   root.
@@ -47,7 +111,7 @@ Features:
   safe_fork() is to fork(). And then make revert the RLIMIT_NOFILE soft limit
   to 1K implicitly, unless explicitly opted-out.
 
-* rework seccomp/nnp logic that that even if User= is used in combination with
+* rework seccomp/nnp logic that even if User= is used in combination with
   a seccomp option we don't have to set NNP. For that, change uid first whil
   keeping CAP_SYS_ADMIN, then apply seccomp, the drop cap.
 
@@ -57,21 +121,14 @@ Features:
 
 * when no locale is configured, default to UEFI's PlatformLang variable
 
-* When logind.conf contains HandleLidSwitch=suspend-then-hibernate and we can't
-  hibernate because the swap partition isn't large enough, still suspend
-
 * bootctl,sd-boot: actually honour the "architecture" key
 
-* set memory.oom.group in cgroup v2 for all leaf cgroups (kernel v4.19+)
-
 * add a new syscall group "@esoteric" for more esoteric stuff such as bpf() and
   usefaultd() and make systemd-analyze check for it.
 
 * paranoia: whenever we process passwords, call mlock() on the memory
-  first. i.e. look for all places we use string_erase()/string_free_erase() and
-  augment them with mlock(). Also use MADV_DONTDUMP
-
-* whenever oom_kill memory.event event is triggered print a nice log message
+  first. i.e. look for all places we use free_and_erasep() and
+  augment them with mlock(). Also use MADV_DONTDUMP.
 
 * Move RestrictAddressFamily= to the new cgroup create socket
 
@@ -99,7 +156,8 @@ Features:
   non-zero "tries done" count
 
 * maybe set a special xattr on cgroups that have delegate=yes set, to make it
-  easy to mark cut points
+  easy to mark cut points, then use this information in "systemd-cgls" to show
+  them (e.g. color delegated subtrees in a different color)
 
 * introduce an option (or replacement) for "systemctl show" that outputs all
   properties as JSON, similar to busctl's new JSON output. In contrast to that
@@ -114,9 +172,6 @@ Features:
   sufficient to build a link by prefixing "http://" and suffixing the
   CODE_FILE.
 
-* when outputting log data with journalctl and the log data includes references
-  to configuration files (CONFIG_FILE=), create a clickable link for it.
-
 * Augment MESSAGE_ID with MESSAGE_BASE, in a similar fashion so that we can
   make clickable links from log messages carrying a MESSAGE_ID, that lead to
   some explanatory text online.
@@ -167,7 +222,7 @@ Features:
   selected user is resolvable in the service even if it ships its own /etc/passwd)
 
 * Fix DECIMAL_STR_MAX or DECIMAL_STR_WIDTH. One includes a trailing NUL, the
-  other doesn't. What a desaster. Probably to exclude it. Also
+  other doesn't. What a disaster. Probably to exclude it. Also
   DECIMAL_STR_WIDTH should probably add an extra "-" into account for negative
   numbers.
 
@@ -183,9 +238,6 @@ Features:
 
 * add --vacuum-xyz options to coredumpctl, matching those journalctl already has.
 
-* SuccessExitStatus= and friends should probably also accept symbolic exit
-  codes names, i.e. error codes from the list maintained in exit-codes.[ch]
-
 * introduce Ephemeral= unit file switch, that creates an ephemeral copy of all
   files and directories that are left writable for a unit, and which are
   removed after the unit goes down again. A bit like --ephemeral for
@@ -196,14 +248,11 @@ Features:
   specific paths only like this.
 
 * add CopyFile= or so as unit file setting that may be used to copy files or
-  directory trees from the host to te services RootImage= and RootDirectory=
+  directory trees from the host to the services RootImage= and RootDirectory=
   environment. Which we can use for /etc/machine-id and in particular
   /etc/resolv.conf. Should be smart and do something useful on read-only
   images, for example fallback to read-only bind mounting the file instead.
 
-* nspawn's console TTY should be allocated from within the container, not
-  mounted in from the outside
-
 * show invocation ID in systemd-run output
 
 * bypass SIGTERM state in unit files if KillSignal is SIGKILL
@@ -299,9 +348,6 @@ Features:
 * expose IO accounting data on the bus, show it in systemd-run --wait and log
   about it in the resource log message
 
-* add "systemctl purge" for flushing out configuration, state, logs, ... of a
-  unit when it is stopped
-
 * show whether a service has out-of-date configuration in "systemctl status" by
   using mtime data of ConfigurationDirectory=.
 
@@ -410,9 +456,6 @@ Features:
 * mount: automatically search for "main" partition of an image has multiple
   partitions
 
-* expose the "privileged" flag of ExecCommand on the bus, and open it up to
-  transient units
-
 * in nss-systemd, if we run inside of RootDirectory= with PrivateUsers= set,
   find a way to map the User=/Group= of the service to the right name. This way
   a user/group for a service only has to exist on the host for the right
@@ -458,7 +501,7 @@ Features:
 * PID 1 should send out sd_notify("WATCHDOG=1") messages (for usage in the --user mode, and when run via nspawn)
 
 * there's probably something wrong with having user mounts below /sys,
-  as we have for debugfs. for exmaple, src/core/mount.c handles mounts
+  as we have for debugfs. for example, src/core/mount.c handles mounts
   prefixed with /sys generally special.
   http://lists.freedesktop.org/archives/systemd-devel/2015-June/032962.html
 
@@ -509,8 +552,6 @@ Features:
 
 * maybe add support for specifier expansion in user.conf, specifically DefaultEnvironment=
 
-* consider showing the unit names during boot up in the status output, not just the unit descriptions
-
 * maybe allow timer units with an empty Units= setting, so that they
   can be used for resuming the system but nothing else.
 
@@ -520,7 +561,7 @@ Features:
 
 * systemctl: if some operation fails, show log output?
 
-* systemctl edit: use equvalent of cat() to insert existing config as a comment, prepended with #.
+* systemctl edit: use equivalent of cat() to insert existing config as a comment, prepended with #.
   Upon editor exit, lines with one # are removed, lines with two # are left with one #, etc.
 
 * exponential backoff in timesyncd when we cannot reach a server
@@ -599,8 +640,6 @@ Features:
 * transient units:
   - add field to transient units that indicate whether systemd or somebody else saves/restores its settings, for integration with libvirt
 
-* Automatically configure swap partition to use for hibernation by looking for largest swap partition on the root disk?
-
 * when we detect low battery and no AC on boot, show pretty splash and refuse boot
 
 * libsystemd-journal, libsystemd-login, libudev: add calls to easily attach these objects to sd-event event loops
@@ -685,16 +724,12 @@ Features:
 
 * merge unit_kill_common() and unit_kill_context()
 
-* introduce ExecCondition= in services
-
 * EFI:
   - honor language efi variables for default language selection (if there are any?)
   - honor timezone efi variables for default timezone selection (if there are any?)
   - change bootctl to be backed by systemd-bootd to control temporary and persistent default boot goal plus efi variables
 * bootctl
-  - verify that the files boot entries point to exist
   - recognize the case when not booted on EFI
-  - specify paths for boot entries
 
 * maybe do not install getty@tty1.service symlink in /etc but in /usr?
 
@@ -729,7 +764,6 @@ Features:
 
 * journal:
   - consider introducing implicit _TTY= + _PPID= + _EUID= + _EGID= + _FSUID= + _FSGID= fields
-  - import and delete pstore filesystem content at startup
   - journald: also get thread ID from client, plus thread name
   - journal: when waiting for journal additions in the client always sleep at least 1s or so, in order to minimize wakeups
   - add API to close/reopen/get fd for journal client fd in libsystemd-journal.
@@ -738,7 +772,7 @@ Features:
   - sd-journal: speed up sd_journal_get_data() with transparent hash table in bg
   - journald: when dropping msgs due to ratelimit make sure to write
     "dropped %u messages" not only when we are about to print the next
-    message that works, but alraedy after a short tiemout
+    message that works, but already after a short timeout
   - check if we can make journalctl by default use --follow mode inside of less if called without args?
   - maybe add API to send pairs of iovecs via sd_journal_send
   - journal: add a setgid "systemd-journal" utility to invoke from libsystemd-journal, which passes fds via STDOUT and does PK access
@@ -910,8 +944,6 @@ Features:
 
 * support crash reporting operation modes (https://live.gnome.org/GnomeOS/Design/Whiteboards/ProblemReporting)
 
-* default to actual 32-bit PIDs, via /proc/sys/kernel/pid_max
-
 * be able to specify a forced restart of service A where service B depends on, in case B
   needs to be auto-respawned?
 
@@ -1001,7 +1033,6 @@ Features:
    - Make sure ID_PATH is always exported and complete for
      network devices where possible, so we can safely rely
      on Path= matching
-   - check MTUBytes parsing (expecting size_t but we are using unsigned)
 
 * sd-rtnl:
    - add support for more attribute types