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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: revert attempts to make the integration-testing workKay Sievers
fa6ccbf42360cdd794ae3164b76e0cc8f0bd62de 197941a8d5d74d79ca45ae73ec114939a8e88244 547708f59edd73d98edcbe84e95b41f7b3321f3b
2013-11-29rename stdio-bridge to bus-proxydKay Sievers
2013-11-29bus: synthesize NameLost/NameAcquired from kernel messages on top if ↵Lennart Poettering
NameOwnerChange
2013-11-29bus: fix callback index when dispatching kernel messagesLennart Poettering
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: sd_bus_request_name: use kdbus_translate_request_name_flags()Daniel Mack
2013-11-29libsystemd-bus: rename sd_bus_kernel_translate_request_name_flagsDaniel Mack
... to keep the namespace clean.
2013-11-29libsystemd-bus: add kdbus support for sd_bus_get_owner()Daniel Mack
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.
2013-11-29libsystemd-bus: factor out DBus bits out of sd_bus_get_owner()Daniel Mack
Just a preparation for upcoming kdbus support.
2013-11-29bus: do not fail if "comm" information cannot be retrieved from /procKay Sievers
2013-11-29bus: fix size calculation for match dataKay Sievers
2013-11-29bus: when synthesizing messages locally, fill in a senderLennart Poettering
2013-11-29busctl: fix --help line breaksLennart Poettering
2013-11-29kdbus: synthesize NameOwnerChange signals from kernel messages and support ↵Lennart Poettering
matches against NameOwnerChange
2013-11-29kdbus: add base enums for itemsLennart Poettering
2013-11-29bus: do not fail if task information cannot be retrieved from /procKay Sievers
2013-11-29libsystemd-bus: clean up bus-control.c fileLukasz Skalski
2013-11-29bus: do not fail if cgroup information cannot be retrieved from /procKay Sievers
2013-11-29libsystemd-bus: catch up with latest kdbus changesKay Sievers
2013-11-29libsystemd-bus: follow kdbus renamesDaniel Mack
kdbus now has more generic names for the items it passes around. That allows for usage from other contexts.
2013-11-29libsystemd-bus: copy over kdbus provided 128-bit bus idDaniel Mack
kdbus now copies the bus unique id back to userspace in the hello ioctl(). Use these bytes to set the server id of the sd_bus.
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.
2013-11-29systemd-stdio-bridge: make it socket-activatable and usable as kdbus bridgeDaniel Mack
Augment systemd-stdio-bridge a bit to make it a 1:1 bridge from legacy DBus clients to kdbus. In particular, * allow setting the bus path of the upstream bus as command line argument * use sd_listen_fds() for systemd's socket activation * omit calling sd_bus_negotiate_fds() when upstream bus is kdbus * reply to bus send errors with proper dbus error messages * treat -ECONNRESET as expected end-of-connection condition
2013-11-29libsystemd-bus: sd_bus_request_name: fix return value for kdbusDaniel Mack
kdbus returns -EALREADY if the requesting connection is already the owner of a name, and -EEXIST if the name already exists and the connection is not able to take it over. Also, n->flags needs a translation as well to match the SD_BUS_* enum values.
2013-11-29libsystemd-bus: kernel: add sd_bus_kernel_translate_request_name_flagsDaniel Mack
Flags used to request a name from kdbus are not identical to what DBus and sd_bus use internally. Introduce a simple function to do the translation for us. It's factored out to a separate function so the dbus-driver instance can make use of it as well.
2013-11-29libsystemd-bus: make sd_bus_list_names return all connections, including ↵Daniel Mack
unique names
2013-11-29libsystemd-bus: add kdbus support for sd_bus_list_names()Daniel Mack
kdbus will tell us the minimum buffer size it needs in case the default 8kb buffer doesn't suffice.
2013-11-29libsystemd-bus: bring definitions in sync with kdbusDaniel Mack
In particular, KDBUS_ITEM_NEXT is now called KDBUS_PART_NEXT, and KDBUS_ITEM_FOREACH was renamed to KDBUS_PART_FOREACH and takes one more argument to make it more flexible.
2013-11-29bus: when turning a buffer into a sd_bus_message avoid creating zero-length ↵Lennart Poettering
parts
2013-11-29bus: creds - ignore EINVAL when acessing the (inactive) LSM /proc interfaceKay Sievers
2013-11-29bus: Add KDBUS_MSG_SRC_NAMES to bus_kernel_make_message() functionLukasz Skalski
2013-11-28busctl: drop bus driver name from list of servicesLennart Poettering
2013-11-28bus: merge sd_bus_get_owner() and sd_bus_get_owner_creds() into one callLennart Poettering
Since the backing ioctl for this on kdbus is the same we retain atomicity this way.
2013-11-28Remove some unused variablesZbigniew Jędrzejewski-Szmek
2013-11-28virt: split detect_vm into separate functionsZbigniew Jędrzejewski-Szmek
It didn't build on arm. Let's simplify it a bit by splitting x86 specific parts out, which should also make things easier when arm virtualization support is added.
2013-11-28core: fix SetUnitPropertiesMarc-Antoine Perennou
2013-11-28Revert "link-config: match length for kernel commandline option"Tom Gundersen
This reverts commit da66338e17f4df04d9d7cc22ec971b416d57761e. It is superseeded by 70f75a523b16ad495a7791d595ee3eececf75953
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.
2013-11-28util: fix handling of trailing whitespace in split_quoted()Lennart Poettering
Inspired by a patch by Lukas Nykryn.
2013-11-28logind: remove unused session->closing fieldDavid Herrmann
This field is always false, drop it. If you want a reliable way to get session state, call session_get_state(). Testing for any flags directly doesn't work currently so don't pretend it would.
2013-11-28logind: require VTs on seat0 and forbid elsewhereDavid Herrmann
Sessions on seat0 must pass us a vtnr, otherwise, you shouldn't try attaching it to seat0. For seats without VTs, we do the exact opposite: we forbid VTs. There can be odd situations if the session-files contain invalid combinations. However, we try to keep sessions alive and restore state as good as possible.
2013-11-28logind: make VT numbers unsignedDavid Herrmann
Fix the whole code to use "unsigned int" for vtnr. 0 is an invalid vtnr so we don't need negative numbers at all. Note that most code already assumes it's unsigned so in case there's a negative vtnr, our code may, under special circumstances, silently break. So this patch makes sure all sources of vtnrs verify the validity. Also note that the dbus api already uses unsigned ints.
2013-11-28networkd: fix several Address entries in [Network] sectionTom Gundersen
2013-11-28event: allow EPOLLET as event flagDavid Herrmann
EPOLLET enables edge-triggered mode (see epoll(7) for more). For most use-cases, level-triggered is just fine, but for master-TTYs we need edge-triggered to catch EPOLLHUP. master-TTYs signal EPOLLHUP if no client is connected, but a client may connect some time later (same happens during vhangup(2)). However, epoll doesn't allow masking EPOLLHUP so it's signaled constantly. To avoid this, edge-triggered mode is needed.
2013-11-28logind: mute/restore VT on behalf of session controllersDavid Herrmann
If a session process calls TakeControl(), we now put the VT into KD_GRAPHICS+K_OFF mode. This way, the new session controller can solely rely on the logind-dbus API to manage the session. Once the controller exits or calls ReleaseControl(), we restore the VT. We also restore it, if we lost a controller during crash/restart (but only if there really *was* a controller previously). Note that we also must put the VT into VT_PROCESS mode. We want VT_AUTO semantics, but VT_AUTO+KD_GRAPHICS actually disables *all* VT switches (who came up with that great idea?). Hence, we set VT_PROCESS for logind but acknowledge *all* requests immediately. If a compositor wants custom VT setups, they can still get this by *first* calling TakeControl() and afterwards setting up the VT. logind doesn't touch the VT during controller runtime, only during setup/teardown. This is actually what weston already does.
2013-11-28logind: restore session-controller after crashDavid Herrmann
We now save the unique bus-name of a session-controller as CONTROLLER=%s in the session files. This allows us to restore the controller after a crash or restart. Note that we test whether the name is still valid (dbus guarantees that the name is unique as long as the machine is up and running). If it is, we know that the controller still exists and can safely restore it. Our dbus-name-tracking guarantees that we're notified once it exits. Also note that session-devices are *not* restored. We have no way to know which devices where used before the crash. We could store all these on disk, too, or mark them via udev. However, this seems to be rather cumbersome. Instead, we expect controllers to listen for NewSession signals for their own session. This is sent on session_load() and they can then re-request all devices. The only race I could find is if logind crashes, then the session controller tries calling ReleaseControl() (which will fail as logind is down) but keeps the bus-connection valid for other independent requests. If logind is restarted, it will restore the old controller and thus block the session. However, this seems unlikely for several reasons: - The ReleaseControl() call must occur exactly in the timespan where logind is dead. - A process which calls ReleaseControl() usually closes the bus-connection afterwards. Especially if ReleaseControl() fails, the process should notice that something is wrong and close the bus. - A process calling ReleaseControl() usually exits afterwards. There may be any cleanup pending, but other than that, usual compositors exit. - If a session-controller calls ReleaseControl(), a session is usually considered closing. There is no known use-case where we hand-over session-control in a single session. So we don't care whether the controller is locked afterwards. So this seems negligible.
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