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2013-12-22bus: decorate the various object vtables with SD_BUS_VTABLE_PROPERTY_CONST ↵Lennart Poettering
where appropriate
2013-12-19machined: implement exit-on-idleLennart Poettering
2013-12-18machinectl: show_properties() already logs the errorDjalal Harouni
2013-12-17bus: when entering an existing namespace to connect to a container's system ↵Lennart Poettering
bus also switch over PID namespace This is necessary to ensure that kdbus can collect creds of the destination namespace when connecting.
2013-12-14bus: when connecting to a container's kdbus instance, enter namespace firstLennart Poettering
Previously we'd open the connection in the originating namespace, which meant most peers of the bus would not be able to make sense of the PID/UID/... identity of us since we didn't exist in the namespace they run in. However they require this identity for privilege decisions, hence disallowing access to anything from the host. Instead, when connecting to a container, create a temporary subprocess, make it join the container's namespace and then connect from there to the kdbus instance. This is similar to how we do it for socket conections already. THis also unifies the namespacing code used by machinectl and the bus APIs.
2013-12-12bus: remove explicit activator-specific flags, the kdbus supports it nowKay Sievers
2013-12-12bus: add SD_BUS_NAME_REPLACE_EXISTING to all activatable services, fix one ↵Kay Sievers
flags conversion
2013-12-12bus: instead of exposing the dbus1 flags when acquiring a name use our own ↵Lennart Poettering
that are closer to kdbus This turns around DO_NOT_QUEUE into QUEUE which implies a more useful default. (And negative options are awful anyway.)
2013-12-11event: hook up sd-event with the service watchdog logicLennart Poettering
Adds a new call sd_event_set_watchdog() that can be used to hook up the event loop with the watchdog supervision logic of systemd. If enabled and $WATCHDOG_USEC is set the event loop will ping the invoking systemd daemon right after coming back from epoll_wait() but not more often than $WATCHDOG_USEC/4. The epoll_wait() will sleep no longer than $WATCHDOG_USEC/4*3, to make sure the service manager is called in time. This means that setting WatchdogSec= in a .service file and calling sd_event_set_watchdog() in your daemon is enough to hook it up with the watchdog logic.
2013-12-10bus: introduce "trusted" bus concept and encode access control in object vtablesLennart Poettering
Introduces a new concept of "trusted" vs. "untrusted" busses. For the latter libsystemd-bus will automatically do per-method access control, for the former all access is automatically granted. Per-method access control is encoded in the vtables: by default all methods are only accessible to privileged clients. If the SD_BUS_VTABLE_UNPRIVILEGED flag is set for a method it is accessible to unprivileged clients too. By default whether a client is privileged is determined via checking for its CAP_SYS_ADMIN capability, but this can be altered via the SD_BUS_VTABLE_CAPABILITY() macro that can be ORed into the flags field of the method. Writable properties are also subject to SD_BUS_VTABLE_UNPRIVILEGED and SD_BUS_VTABLE_CAPABILITY() for controlling write access to them. Note however that read access is unrestricted, as PropertiesChanged messages might send out the values anyway as an unrestricted broadcast. By default the system bus is set to "untrusted" and the user bus is "trusted" since per-method access control on the latter is unnecessary. On dbus1 busses we check the UID of the caller rather than the configured capability since the capability cannot be determined without race. On kdbus the capability is checked if possible from the attached meta-data of a message and otherwise queried from the sending peer. This also decorates the vtables of the various daemons we ship with these flags.
2013-12-08Help output spring cleaningZbigniew Jędrzejewski-Szmek
Use [brackets] only for optional elements. Use <optional> in XML sources.
2013-12-03bus: make sd_bus_request_name() and sd_bus_release_name() behave more like ↵Lennart Poettering
other calls Instead of returning an enum of return codes, make them return error codes like kdbus does internally. Also, document this behaviour so that clients can stick to it. (Also rework bus-control.c to always have to functions for dbus1 vs. kernel implementation of the various calls.)
2013-11-28bus: add new sd_bus_creds object to encapsulate process credentialsLennart Poettering
This way we can unify handling of credentials that are attached to messages, or can be queried for bus name owners or connection peers. This also adds the ability to extend incomplete credential information with data from /proc, Also, provide a convenience call that will automatically determine the most appropriate credential object for an incoming message, by using the the attached information if possible, the sending name information if available and otherwise the peer's credentials.
2013-11-27service: add the ability for units to join other unit's PrivateNetwork= and ↵Lennart Poettering
PrivateTmp= namespaces
2013-11-22bus: also add error parameter to object find and enumerator callbacksLennart Poettering
Just in order to bring things inline with the method and property callbacks.
2013-11-21logind,machined,run: properly invoke StartTransientUnit() bus callLennart Poettering
2013-11-21bus: rework message handlers to always take an error argumentLennart Poettering
Message handler callbacks can be simplified drastically if the dispatcher automatically replies to method calls if errors are returned. Thus: add an sd_bus_error argument to all message handlers. When we dispatch a message handler and it returns negative or a set sd_bus_error we send this as message error back to the client. This means errors returned by handlers by default are given back to clients instead of rippling all the way up to the event loop, which is desirable to make things robust. As a side-effect we can now easily turn the SELinux checks into normal function calls, since the method call dispatcher will generate the right error replies automatically now. Also, make sure we always pass the error structure to all property and method handlers as last argument to follow the usual style of passing variables for return values as last argument.
2013-11-21bus: let's simplify things by getting rid of unnecessary bus parametersLennart Poettering
2013-11-21bus: add API calls to escape string components of objects pathsLennart Poettering
2013-11-20core: convert PID 1 to libsystemd-busLennart Poettering
This patch converts PID 1 to libsystemd-bus and thus drops the dependency on libdbus. The only remaining code using libdbus is a test case that validates our bus marshalling against libdbus' marshalling, and this dependency can be turned off. This patch also adds a couple of things to libsystem-bus, that are necessary to make the port work: - Synthesizing of "Disconnected" messages when bus connections are severed. - Support for attaching multiple vtables for the same interface on the same path. This patch also fixes the SetDefaultTarget() and GetDefaultTarget() bus calls which used an inappropriate signature. As a side effect we will now generate PropertiesChanged messages which carry property contents, rather than just invalidation information.
2013-11-12bus: introduce concept of a default bus for each thread and make use of it ↵Lennart Poettering
everywhere We want to emphasize bus connections as per-thread communication primitives, hence introduce a concept of a per-thread default bus, and make use of it everywhere.
2013-11-12bus: introduce concept of a "default" event loop per-thread and make use of ↵Lennart Poettering
it everywhere Try to emphasize a bit that there should be a mapping between event loops and threads, hence introduce a logic that there's one "default" event loop for each thread, that can be queried via "sd_event_default()".
2013-11-12bus: rename sd_bus_send_with_reply_and_block() to sd_bus_call()Lennart Poettering
The call is one of the most important ones we expose, where we place major emphasis on. We should make sure to give it a short, memorable name.
2013-11-08machinectl: close bus to container earlyLennart Poettering
2013-11-07machinectl: show list headers even if we pipe, since that appears to be the ↵Lennart Poettering
usual way
2013-11-07bus: log message parsing errors everywhere with a generalized ↵Lennart Poettering
bus_log_parse_error()
2013-11-07polkit: don't spawn local client if we access a remote systemLennart Poettering
2013-11-07machine: add missing header includeKay Sievers
2013-11-07machine: move symbols referenced by shared code from main to shared fileKay Sievers
With --enable-address-sanitizer we get: machined-dbus.c:228: undefined reference to 'manager_add_machine'
2013-11-07bus: make bus_print_all_properties work for non machinectl casesSimon Peeters
add a destination parameter and skip properties we can't read
2013-11-07machinectl: we need glibc's socket.h, not our ownLennart Poettering
2013-11-06machinectl: use initialization instead of zeroingZbigniew Jędrzejewski-Szmek
2013-11-06clients: unify how we invoke getopt_long()Lennart Poettering
Among other things this makes sure we always expose a --version command and show it in the help texts.
2013-11-06clients: various simplificationsLennart Poettering
2013-11-06machined: keep track of the initial leader PID of a machineLennart Poettering
This way we can without races always determine the machine for a leader PID. This allows machine managers to query the machine for a forked off container/VM without a race where the child might already have died before we could read the cgroup information from /proc/$PID/cgroup.
2013-11-05logind: add virtual object paths that always can be used to refer to the ↵Lennart Poettering
callers session, user, seat or machine object This way clients can skip invoking GetSessionByPID() for their own PID or a similar call to access these objects.
2013-11-05logind: automatically determine client side PID if GetSessionByPID() is ↵Lennart Poettering
called with a PID == 0
2013-11-05bus: update bus_map_all_properties()Kay Sievers
2013-11-05machined: simplificationsLennart Poettering
2013-11-01machinectl: fix warning when compiling with -OgThomas Hindoe Paaboel Andersen
src/machine/machinectl.c: In function ‘openpt_in_namespace’: src/machine/machinectl.c:623:44: warning: ‘master’ may be used uninitialized in this function [-Wmaybe-uninitialized] close_nointr_nofail(master); ^
2013-10-31machinectl: add new command to spawn a getty inside a containerLennart Poettering
2013-10-30run: add support for executing commands remotely via SSH or in a containerLennart Poettering
Also, unify the transport logic a bit, since we reuse the same scheme in many of our client tools.
2013-10-30machinectl: we don't really just show information, we execute operationsLennart Poettering
2013-10-30bus: add API call to create bus connection to the system bus of local containersLennart Poettering
Also, add support for this to machinectl, so that we can enumerate the machines that run inside a container. We must go deeper!
2013-10-30bus: move ssh support into public API of libsystem-busLennart Poettering
2013-10-30machinectl: privileged option is goneMarc-Antoine Perennou
2013-10-30machinectl: port to sd-busTom Gundersen
2013-10-30machined: port over to libsystemd-busLennart Poettering
2013-10-14list: make our list macros a bit easier to use by not requring type spec on ↵Lennart Poettering
each invocation We can determine the list entry type via the typeof() gcc construct, and so we should to make the macros much shorter to use.
2013-10-13bus: fix access to unitialized variable in error pathZbigniew Jędrzejewski-Szmek
src/machine/machined-dbus.c:237:13: warning: Branch condition evaluates to a garbage value if (m) ^