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2015-10-24util: split out escaping code into escape.[ch]Lennart Poettering
This really deserves its own file, given how much code this is now.
2015-10-22logind: minor clean-upsLennart Poettering
2015-10-14login: suspend - be a bit more explicit when loggingTom Gundersen
When the Suspend method is called, the only log message we write (unless debugging is enabled) is "Operation finished.". This is not very helpful when trying to figure out what is going on, so add what operation we are talking about to the message: "Operation 'sleep' finished.". Hat tip to Daniel Aleksandersen for pointing this out.
2015-10-01logind: remove warn_melody() logicLennart Poettering
The internal speaker is usually not available on modern latops that support suspend, and even if it is available in the hardware, most distributions turned support for it off in the kernel. And even if it is enabled, it's probably still a bad idea to make use of it for the suspend-failures. If anything a proper sound should be played. Long story short, let's remove support of this anachronism.
2015-09-30tree-wide: clean up log_syntax() usageLennart Poettering
- Rely everywhere that we use abs() on the error code passed in anyway, thus don't need to explicitly negate what we pass in - Never attach synthetic error number information to log messages. Only log about errors we *receive* with the error number we got there, don't log any synthetic error, that don#t even propagate, but just eat up. - Be more careful with attaching exactly the error we get, instead of errno or unrelated errors randomly. - Fix one occasion where the error number and line number got swapped. - Make sure we never tape over OOM issues, or inability to resolve specifiers
2015-09-30Merge pull request #1421 from keszybz/formatting-fixesDaniel Mack
logind: avoid a dot before parenthesis
2015-09-30logind: avoid a dot before parenthesisZbigniew Jędrzejewski-Szmek
systemd-logind[27]: System is rebooting. (Applied kernel updates.) is changed to systemd-logind[27]: System is rebooting (Applied kernel updates). Users should not add a dot in the sentence in --message, i.e. the correct usage is now: $ systemctl reboot --message "Applied kernel updates"
2015-09-30tree-wide: use strempty() where possibleDaniel Mack
Also add a Coccinell patch to detect such locations in the future.
2015-09-29bus-util: rename bus_open_transport() to bus_connect_transport()Lennart Poettering
In sd-bus, the sd_bus_open_xyz() family of calls allocates a new bus, while sd_bus_default_xyz() family tries to reuse the thread's default bus. bus_open_transport() sometimes internally uses the former, sometimes the latter family, but suggests it only calls the former via its name. Hence, let's avoid this confusion, and generically rename the call to bus_connect_transport(). Similar for all related calls. And while we are at it, also change cgls + cgtop to do direct systemd connections where possible, since all they do is talk to systemd itself.
2015-09-29util: introduce common version() implementation and use it everywhereLennart Poettering
This also allows us to drop build.h from a ton of files, hence do so. Since we touched the #includes of those files, let's order them properly according to CODING_STYLE.
2015-09-22pam: systemd-user - call selinux moduleKay Sievers
https://bugzilla.redhat.com/show_bug.cgi?id=1262933
2015-09-22Merge pull request #1335 from poettering/some-fixesDaniel Mack
A variety of mostly unrelated fixes
2015-09-22util: drop UID_IS_INVALID() in favour of uid_is_valid()Lennart Poettering
No need to keep both functions, settle on uid_is_valid() for everything.
2015-09-22login: support more than just power-gpio-keydoubleodoug
Adding additional keys prevents this gpio-keys powerswitch from working, e.g. this wouldn't poweroff: button@23 { label = "power-switch"; linux,code = <116>; gpios = <&gpio 23 1>; }; button@25 { label = "KEY_A"; linux,code = <30>; gpios = <&gpio 25 1>; }; Changing ATTRS{keys}=="116" to ATTRS{keys}=="*116*" makes the power-switch and the A key both work properly. (David: rephrase and merge-commits)
2015-09-11loginctl: print nontrivial properties in logictl show-*Lukas Nykryn
2015-09-10tree-wide: never use the off_t unless glibc makes us use itLennart Poettering
off_t is a really weird type as it is usually 64bit these days (at least in sane programs), but could theoretically be 32bit. We don't support off_t as 32bit builds though, but still constantly deal with safely converting from off_t to other types and back for no point. Hence, never use the type anymore. Always use uint64_t instead. This has various benefits, including that we can expose these values directly as D-Bus properties, and also that the values parse the same in all cases.
2015-09-09logind: allow dry run variants for scheduled shutdownsDaniel Mack
Allow passing a "dry-" prefix to the action parameter passed to .ScheduleShutdown(). When strings with this prefix are passed, the scheduled action will not take place. Instead, an info message is logged.
2015-09-09tree-wide: make use of log_error_errno() return value in more casesLennart Poettering
The previous coccinelle semantic patch that improved usage of log_error_errno()'s return value, only looked for log_error_errno() invocations with a single parameter after the error parameter. Update the patch to handle arbitrary numbers of additional arguments.
2015-09-09tree-wide: drop {} from one-line if blocksLennart Poettering
Patch via coccinelle.
2015-09-09tree-wide: make use of log_error_errno() return valueLennart Poettering
Turns this: r = -errno; log_error_errno(errno, "foo"); into this: r = log_error_errno(errno, "foo"); and this: r = log_error_errno(errno, "foo"); return r; into this: return log_error_errno(errno, "foo");
2015-09-09tree-wide: drop redundant if checks before safe_close()Lennart Poettering
Replace this: if (fd >= 0) safe_close(fd); by this: safe_close(fd);
2015-09-09tree-wide: make more code use safe_close()Lennart Poettering
Replace this: close(fd); fd = -1; write this: fd = safe_close(fd);
2015-09-09tree-wide: use coccinelle to patch a lot of code to use mfree()Lennart Poettering
This replaces this: free(p); p = NULL; by this: p = mfree(p); Change generated using coccinelle. Semantic patch is added to the sources.
2015-09-08treewide: fix typosTorstein Husebø
2015-09-07Merge pull request #1165 from poettering/nspawn-filesTom Gundersen
various fixes to the core, logind, machined, nspawn
2015-09-05logind: make scope of wall message handling smallerLennart Poettering
2015-09-06bus-util: support details in CheckAuthorization callsMichael Chapman
Extra details for an action can be supplied when calling polkit's CheckAuthorization method. Details are a list of key/value string pairs. Custom policy can use these details when making authorization decisions.
2015-09-05login: fix NULL-deref on wall_messageDavid Herrmann
We treat an empty wall-message equal to a NULL wall-message since: commit 5744f59a3ee883ef3a78214bd5236157acdc35ba Author: Lennart Poettering <lennart@poettering.net> Date: Fri Sep 4 10:34:47 2015 +0200 logind: treat an empty wall message like a NULL one Fix the shutdown scheduler to not deref a NULL pointer, but properly check for an empty wall-message. Fixes: #1120
2015-09-04logind: when parsing a boolean via sd-bus the type must be "int"Lennart Poettering
And not bool.
2015-09-04logind: treat an empty wall message like a NULL oneLennart Poettering
2015-09-01cgroup: drop "ignore_self" argument from cg_is_empty()Lennart Poettering
In all cases where the function (or cg_is_empty_recursive()) ignoring the calling process is actually wrong, as a process keeps a cgroup busy regardless if its the current one or another. Hence, let's simplify things and drop the "ignore_self" parameter.
2015-09-01logind: Listen to WMI hotkeys to catch SW_DOCK state/eventsMartin Pitt
On Dell and HP laptops the dock state/events (SW_DOCK) come from the "{Dell,HP} WMI hotkeys" input devices. Tag them as power-switch so that login actually considers them. Use a general match in case this affects other vendors, too. Thanks to Andreas Schultz for debugging this! https://launchpad.net/bugs/1450009
2015-08-31login: support user-bus on dbus1David Herrmann
dbus-1.10 was just released, including systemd units to run `dbus-daemon --session` as systemd user unit. This allows using a user-bus with dbus1, just like we do per default with kdbus. All the dbus libraries have already been fixed long ago to use the user-bus as default. Hence, there's no need to set DBUS_SESSION_BUS_ADDRESS= if we use the user-bus. However, gdm and friends continue to spawn a session bus if this variable is not set (instead of checking for the existence of the user-bus). Hence, we force the user-bus, if it is available, in pam_systemd. Once gdm and friends are fixed, we can continue to drop this again. However, that might take a while. With this in place, all that is needed to make the user-bus work is: `systemctl --global enable dbus.socket` If dbus.socket is not enabled, the legacy session-bus is still used. Based on a patch by: Jan Alexander Steffens <jan.steffens@gmail.com>
2015-08-25logind/systemctl: introduce SetWallMessage and --messageJan Synacek
Enable unprivileged users to set wall message on a shutdown operation. When the message is set via the --message option, it is logged together with the default shutdown message. $ systemctl reboot --message "Applied kernel updates." $ journalctl -b -1 ... systemd-logind[27]: System is rebooting. (Applied kernel updates.) ...
2015-08-18logind: get a fresh file descriptor to clean up a VTOwen W. Taylor
When the controlling process exits, any existing file descriptors for that FD will be marked as hung-up and ioctls on them will file with EIO. To work around this, open a new file descriptor for the VT we want to clean up. Thanks to Ray Strode for help in sorting out the problem and coming up with a fix! https://github.com/systemd/systemd/issues/989
2015-08-18logind: use open_terminal() instead of open()Owen W. Taylor
The open_terminal() function adds retries in case a terminal is in the process of being closed when we open it, and should generally be used to open a terminal. We especially need it for code that a subsequent commit adds that reopens the terminal at session shut-down time; such races would be more likely in that case. Found by Ray Strode.
2015-08-17Bug #944: Deletion of unnecessary checks before a few calls of systemd functionsMarkus Elfring
The following functions return immediately if a null pointer was passed. * calendar_spec_free * link_address_free * manager_free * sd_bus_unref * sd_journal_close * udev_monitor_unref * udev_unref It is therefore not needed that a function caller repeats a corresponding check. This issue was fixed by using the software Coccinelle 1.0.1.
2015-08-13logind: actually fail on OOMThomas Hindoe Paaboel Andersen
Since dacd6cee76a08331b8c8616c5f30f70ee49aa2f9 the two OOM's are ignored as the value of r will be overwritten and we only log in the fail section anyway. This patch jumps to fail on OOM. Note that this is different behavior compared to both the current code and previous to dacd6cee76a08331b8c8616c5f30f70ee49aa2f9. Before that commit we would log that saving the inhibit data failed, but still write the file, though without the WHO/WHY section. CID# 1313545
2015-08-06logind,machined: various smaller cleanupsLennart Poettering
Use mfree() where we can. Drop unnecessary {}. Drop unnecessary variable declarations. Cast syscall invocations where explicitly don't care for the return value to (void). Reword a comment.
2015-08-06machined,logind: don't generate errors on signal match functionsLennart Poettering
If we get a weird signal, then we should log about it, but not return an error, since sd-bus will not call us again then anymore, but for these signals we match here we actually do want to be called on the next invocation.
2015-08-05logind: switch to sd_bus_track helperDaniel Mack
Let logind use the sd_bus_track helper object to track the controllers of sessions. This does not only remove quite some code but also kills the unconditional matches for all NameOwnerChanged signals. The latter is something we should never ever do, as it wakes up the daemon every time a client connects, which doesn't scale.
2015-08-03logind: add standard gpio power button supportKefeng Wang
Many boards like hisilicon D02 board use standard gpio key to power down system. A description of gpio-key in dts shown below, gpio_keys { compatible = "gpio-keys"; #address-cells = <1>; #size-cells = <0>; pwrbutton { label = "Power Button"; gpios = <&porta 8 1>; linux,code = <116>; // KEY_POWER, used by SC System Power Down }; }; -bash-4.3# udevadm info -a /dev/input/event3 Udevadm info starts with the device specified by the devpath and then walks up the chain of parent devices. It prints for every device found, all possible attributes in the udev rules key format. A rule to match, can be composed by the attributes of the device and the attributes from one single parent device. looking at device '/devices/platform/gpio_keys/input/input3/event3': KERNEL=="event3" SUBSYSTEM=="input" DRIVER=="" looking at parent device '/devices/platform/gpio_keys/input/input3': KERNELS=="input3" SUBSYSTEMS=="input" DRIVERS=="" ATTRS{name}=="gpio_keys" ATTRS{phys}=="gpio-keys/input0" ATTRS{uniq}=="" ATTRS{properties}=="0" looking at parent device '/devices/platform/gpio_keys': KERNELS=="gpio_keys" SUBSYSTEMS=="platform" DRIVERS=="gpio-keys" ATTRS{keys}=="116" ATTRS{switches}=="" ATTRS{driver_override}=="(null)" ATTRS{disabled_keys}=="" ATTRS{disabled_switches}=="" looking at parent device '/devices/platform': KERNELS=="platform" SUBSYSTEMS=="" DRIVERS==""
2015-07-31tree-wide: introduce mfree()David Herrmann
Pretty trivial helper which wraps free() but returns NULL, so we can simplify this: free(foobar); foobar = NULL; to this: foobar = mfree(foobar);
2015-07-31logind: release VT-positions when closing sessionsDavid Herrmann
Make sure we release VT-positions when a session is closed. Otherwise, lingering sessions will occupy VTs and prevent next logins from succeeding. Note that we already release session-devices when closing a session, so there cannot be anyone using the VT anymore.
2015-07-30tree-wide: use free_and_strdup()Daniel Mack
Use free_and_strdup() where appropriate and replace equivalent, open-coded versions.
2015-07-29tree-wide: port everything over to fflush_and_check()Lennart Poettering
Some places invoked fflush() directly with their own manual error checking, let's unify all that by using fflush_and_check(). This also unifies the general error paths of fflush()+rename() file writers.
2015-07-21logind: fix write_string_file() falloutDaniel Mack
WRITE_STRING_FILE_ATOMIC is only valid if WRITE_STRING_FILE_CREATE is also given. IOW, an atomic file write operation is only possible when creating a file is also being asked for. This is a regression from the recent write_string_file() rework.
2015-07-16logind: never select closing sessions for a VTDavid Herrmann
If a session is in closing state (and already got rid of its VT), then never re-select it for that VT. There is no reason why we should grant something to a session that is already going away *AND* already got rid of exactly that.
2015-07-16logind: prefer new sessions over older ones on VT switchesDavid Herrmann
Our seat->positions[] array keeps track of the 'preferred' session on a VT. The only situation this is used, is to select the session to activate when a VT is activated. In the normal case, there's only one session per VT so the selection is trivial. Older greeters, however, implement take-overs when they start sessions on the same VT that the greeter ran on. We recently limited such take-overs to VTs where a greeter is running on, to force people to never share VTs in new code that is written. For legacy reasons, we need to be compatible to old greeters, though. Hence, we allow those greeters to implement take-over. In such take-overs, however, we should really make sure that the new sessions gets preferred over the old one under all circumstances. Hence, make sure we override the previous preferred session with a new session.
2015-07-11logind: bring bus policy up-to-dateLennart Poettering
A while back we opened up all of logind's bus calls to unprivileged users, via PK. However, the dbus1 policy wasn't updated accordingly. With this change, the dbus1 policy is opened up for all bus calls that should be available to unprivileged clients. (also rearranges some calls in the vtable, to make more sense, and be in line with the order in the bus policy file) Fixes #471.