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path: root/src/libsystemd-bus/sd-bus.c
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2013-12-03bus: internalize a lot of protocol definitionsLennart Poettering
We shouldn export what isn't necessary or useful to clients, so let's add the protocol definitions we only need internally into a private header.
2013-12-02busctl: add command to dump creds of a peer or pidLennart Poettering
(also, rename _SD_BUS_CREDS_MAX to _SD_BUX_CRED_ALL, since "MAX" so far was used to indicate one higher than the highest valid value, and this is not correct here.)
2013-11-30bus: remove unused variableZbigniew Jędrzejewski-Szmek
2013-11-30bus: do kdbus only if this is enabled on the configure switchLennart Poettering
Since we want to retain the ability to break kernel ←→ userspace ABI after the next release, let's not make use by default of kdbus, so that people with future kernels will not suddenly break with current systemd versions. kdbus support is left in all builds but must now be explicitly requested at runtime (for example via setting $DBUS_SESSION_BUS). Via a configure switch the old behaviour can be restored. In fact, we change autogen.sh to do this, so that git builds (which run autogen.sh) get kdbus by default, but tarball builds (which ue the configure defaults) do not get it, and hence this stays out of the distros by default.
2013-11-30bus: append unique and well known names to all messages unconditionallyLennart Poettering
2013-11-30bus: include unique and well known names in credentials objectLennart Poettering
2013-11-30libsystemd-bus: catch up with latest kdbus changesDaniel Mack
The name list and query functions now work differently in kdbus, as the result is stored in the connection's pool, rather than being copied back through the ioctl buffer. That also safes us some logic, as we don't have to resize the communication buffer in a loop with growing buffer sizes. Due to this, KDBUS_CMD_MSG_RELEASE was renamed to KDBUS_CMD_FREE, as it is now used outside the message logic as well.
2013-11-30core: allocate a kdbus bus for each systemd instance, if we canLennart Poettering
2013-11-30bus: whenever we notice the connection is terminated enter CLOSING stateLennart Poettering
2013-11-30bus: synthesize local error reply when we cannot deliver a message to kdbus ↵Lennart Poettering
because the destination is unavailable
2013-11-30bus: don't generate NameAcquired/NameLost messages in the libraryLennart Poettering
The signals appear entirely redundant due to NameOwnerChange, hence don't do them in the new library, instead leave them for the compatibility bridge only. Also, set the serial number for synthesized messages to (uint32_t) -1.
2013-11-29bus: add the ability for backends to queue to input messages at the same timeLennart Poettering
We need this so that one incoming kernel message can result in two high-level bus messages, for the case where we synthesize NameAcquired and NameOwnerChanged in the same instance.
2013-11-29libsystemd-bus: add sd_bus_translate_attach_flags()Daniel Mack
Factor out code from sd_bus_negotiate_attach_creds() to a generic translate function, so it can be used from other places.
2013-11-29bus: when synthesizing messages locally, fill in a senderLennart Poettering
2013-11-29kdbus: synthesize NameOwnerChange signals from kernel messages and support ↵Lennart Poettering
matches against NameOwnerChange
2013-11-29libsystemd-bus: catch up with latest kdbus changesDaniel Mack
kdbus_cmd_hello now has a new uint64_t flags field for the requested attachments. Follow that change in libsystemd-bus.
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.
2013-11-28bus: update kdbus.h and always subscribe to KDBUS_HELLO_ATTACH_NAMESKay Sievers
2013-11-27bus: properly handle if we get disconnected during HELLO phaseLennart Poettering
2013-11-22bus: when closing a bus, drop all refs to queued messages, so that the bus ↵Lennart Poettering
can be freed
2013-11-22bus: add calls to query attached objectsLennart Poettering
2013-11-21bus: restore selinux access control to PID 1 for propertiesLennart 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: rename SD_BUS_ERROR_MAKE to SD_BUS_ERROR_MAKE_CONST to indicate it only ↵Lennart Poettering
works for const strings
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
2013-11-20bus: make sure an additional ref to a busevent source doesn't cause the ↵Lennart Poettering
event source to be triggered again
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.
2013-11-20bus: add sd_bus_send_to() API callLennart Poettering
2013-11-20bus: bump serial number counter when sending already sealed messagesLennart Poettering
2013-11-18bus: TIMESTAMP is optional kdbus metadata now, NAMES are always addedKay Sievers
2013-11-17bus: CREDS and NAMES are optional kdbus metadata nowKay Sievers
2013-11-14bus: typoTom Gundersen
Fix a couple of 'void' that should have been 'sd_bus'.
2013-11-12bus: detect blocking message calls to our own connection and return ELOOP earlyLennart Poettering
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: 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.
2013-11-06bus: export libsystemd-bus as a public libraryZbigniew Jędrzejewski-Szmek
Old static libsystemd-bus.la becomes libsystemd-bus-internal.la. memfd functions are also exported in the same library. (Best viewed with --color-words -U0).
2013-11-05bus: add sd_bus_get_current() bus call to determine message that is ↵Lennart Poettering
currently being dispatched
2013-11-05bus: make use of assert_return() in all API calls that don't use it yetLennart 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
2013-10-18bus: automatically flush bus queue when we exit the event loopLennart Poettering
This way, we do not have to call it manually
2013-10-16timedated: use libsystemd-bus instead of libdbus for bus communicationLennart Poettering
Among other things this also adds a few things necessary for the change: - Considerably more powerful error returning APIs in libsystemd-bus - Adapter for connecting an sd_bus to an sd_event - As I reworked the PolicyKit logic to the new library I also made it asynchronous, so that PolicyKit requests of one user cannot block out another user anymore. - We always use the macro names for common bus error. That way it is harder to mistype them since the compiler will notice
2013-10-16bus: return 1 on all calls that send messagesLennart Poettering
This way they are nicer to use from method dispatch callbacks as last call, since method dispatch callbacks expect > 0 return if the message got handled.
2013-10-16bus: make sure sd_bus_get_timeout() returns a 0 timeout of there are already ↵Lennart Poettering
read but not dispatched messages
2013-10-14bus: make sure that we always keep a ref to the bus when we dispatch callbacksLennart Poettering
Otherwise the callback might unref the bus we are processing and destroy the object while we are processing it.
2013-10-14bus: use assert_return() for more API callsLennart 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.
2013-10-11bus: split up overly long sd-bus.c into three filesLennart Poettering
2013-10-11bus: if a a Set() vtable callback of a writable is left NULL, try to do the ↵Lennart Poettering
right thing automatically