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Commit Graph

1170 Commits

Author SHA1 Message Date
Lennart Poettering
adacb9575a bus: introduce "trusted" bus concept and encode access control in object vtables
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.
2013-12-10 16:52:49 +00:00
Ronny Chevalier
c6a77179a4 test: rework run_qemu
It tries to find a suitable QEMU binary and will use KVM if present.
We can now configure QEMU from outside with 4 variables :
  - $QEMU_BIN : path to QEMU's binary
  - $KERNEL_APPEND : arguments appended to kernel cmdline
  - $KERNEL_BIN : path to a kernel
    Default /boot/vmlinuz-$KERNEL_VER
  - $INITRD : path to an initramfs
    Default /boot/initramfs-${KERNEL_VER}.img
  - $QEMU_SMP : number of CPU simulated by QEMU.
    Default 1

(from Alexander Graf's script: http://www.spinics.net/lists/kvm/msg72389.html)
2013-12-10 07:46:21 -05:00
Lennart Poettering
a99b3a4a9f update TODO 2013-12-10 01:11:43 +01:00
Zbigniew Jędrzejewski-Szmek
014e7ea7f2 Trim TODO 2013-12-08 19:26:51 -05:00
Tom Gundersen
0a4b9a0787 TODO: add networkd entries 2013-12-04 14:15:13 +01:00
Lennart Poettering
0e7be1293f core: use normal library call to query list of current names 2013-12-03 18:58:18 +01:00
Lennart Poettering
e7176abbe8 bus: make sd_bus_request_name() and sd_bus_release_name() behave more like 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.)
2013-12-03 18:02:46 +01:00
Zbigniew Jędrzejewski-Szmek
c7332b0844 catalog: determine language from the filename 2013-12-02 22:12:02 -05:00
Lennart Poettering
e821075a23 bus: add .busname unit type to implement kdbus-style bus activation 2013-12-02 23:32:34 +01:00
Lennart Poettering
fd5b0b9141 nspawn: make sure /dev/kdbus in the container is world accessible 2013-12-02 19:59:15 +01:00
Lennart Poettering
6717d47350 bus: when replying to an incoming message and the vtable contains the expected return signature generate an error if the response message doesn't match it 2013-12-02 15:29:40 +01:00
Shawn Landden
e93c33d4aa systemctl: add "systemctl cat" 2013-11-30 22:20:20 -05:00
Lennart Poettering
626851be97 bus: do kdbus only if this is enabled on the configure switch
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.
2013-11-30 20:18:48 +01:00
Lennart Poettering
4734b89564 update TODO 2013-11-30 19:55:23 +01:00
Lennart Poettering
49b832c5b8 bus: include unique and well known names in credentials object 2013-11-30 14:46:14 +01:00
Lennart Poettering
f38afcd0c7 clean up TODO 2013-11-28 18:44:50 +01:00
Lennart Poettering
34c7dc47d3 man: get rid of shell script example in systemd-socket-proxyd man page 2013-11-28 18:42:18 +01:00
Tom Gundersen
88e4d1d733 TODO: add sd-rtnl items 2013-11-27 23:15:04 +01:00
Lennart Poettering
8cf030b349 Revert "socket-proxyd: Add --listener option for listener/destination pairs."
This reverts commit adcf4c81c5.

We have a better solution for the problem of making two processes run in
the same namespace, and --listener is not needed hence and should be
dropped.

Conflicts:
	man/systemd-socket-proxyd.xml
2013-11-27 20:55:15 +01:00
Lukasz Skalski
4ec181a006 updates for TODO and README
* library support for setns() system call was added to glibc
version 2.14 (setns() call is use in src/machine/machinectl.c
and src/libsystemd-bus-container.c)

* utf8 validation call are already exported (via sd-utf8.c file) -
commit - 369c583b3f
2013-11-27 13:14:24 +01:00
Lennart Poettering
d0767ffd08 journal: add a test case for flushing messages out of a series of journal files into a single new one 2013-11-27 01:01:53 +01:00
Daniel Buch
f5f6d0e255 tree-wide usage of %m specifier instead of strerror(errno)
Also for log_error() except where a specific error is specified

e.g. errno ? strerror(errno) : "Some user specified message"
2013-11-26 21:07:46 +10:00
Lennart Poettering
0bee65f062 shutdown: during final killing spree also send SIGHUP in addition to SIGTERM to deal with shells
This makes shutdown a bit faster if debug-shell.service is enabled.
2013-11-25 22:10:22 +01:00
David Strauss
adcf4c81c5 socket-proxyd: Add --listener option for listener/destination pairs. 2013-11-25 10:46:48 +10:00
David Strauss
bfe76ec3ce Update TODO 2013-11-23 07:55:37 +10:00
Lennart Poettering
baabc57764 build-sys: move more files from core/ to share/ that are generic enough 2013-11-22 16:31:40 +01:00
Lennart Poettering
f00c31213a bus: also add error parameter to object find and enumerator callbacks
Just in order to bring things inline with the method and property
callbacks.
2013-11-22 01:42:15 +01:00
Lennart Poettering
969987ea93 bus: restore selinux access control to PID 1 for properties 2013-11-21 23:36:51 +01:00
Lennart Poettering
9f5eb56a13 timer: make timer accuracy configurable
And make it default to 1min
2013-11-21 22:08:20 +01:00
Lennart Poettering
ebcf1f97de bus: rework message handlers to always take an error argument
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.
2013-11-21 21:12:36 +01:00
Lennart Poettering
51b4ea6f48 bus: the :no-sender hack is now unnecessary, since the new library doesn't require this anymore 2013-11-21 21:12:36 +01:00
Lennart Poettering
df2d202e6e bus: let's simplify things by getting rid of unnecessary bus parameters 2013-11-21 02:07:35 +01:00
Lennart Poettering
28383ba189 bus: add API calls to escape string components of objects paths 2013-11-21 01:03:26 +01:00
Lennart Poettering
850516e012 sd-event: try to move timer wakeups to the same spot within each minute 2013-11-21 00:46:13 +01:00
Lennart Poettering
2e41a51ea4 socket: fix segfault 2013-11-21 00:06:11 +01:00
Lennart Poettering
718db96199 core: convert PID 1 to libsystemd-bus
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.
2013-11-20 20:52:36 +01:00
Olivier Brunel
9cd861842c Fix RemainAfterExit services keeping a hold on console
When a service exits succesfully and has RemainAfterExit set, its hold
on the console (in m->n_on_console) wasn't released since the unit state
didn't change.
2013-11-16 12:08:11 -05:00
Zbigniew Jędrzejewski-Szmek
24710f6d2f Update TODO 2013-11-14 00:08:36 -05:00
Lennart Poettering
966204e010 timer: consider (usec_t) -1 an invalid timestamp 2013-11-11 15:54:42 +01:00
Lennart Poettering
60411ac750 bus: we really need to get rid of the :no-sender hack
This is where a hack from PID 1 spilled into the client side. We need
to get rid of this as soon as PID 1 is converted to libsystemd-bus.
2013-11-10 23:54:55 +01:00
Zbigniew Jędrzejewski-Szmek
9cb74bcb23 man,units: fix installation of systemd-nspawn@.service and add example 2013-11-09 19:02:53 -05:00
Kay Sievers
dbb642afae bus: let magic ":no-sender" pass the validation 2013-11-09 00:58:11 +01:00
Lennart Poettering
94676f3e93 localectl: port over to bus_log_create_error() 2013-11-08 19:48:42 +01:00
Lennart Poettering
477def8097 shutdown: unify handling of reboot() syscall a bit 2013-11-08 19:32:45 +01:00
Lennart Poettering
41dd15e474 systemctl: restore ability to directly connect to PID1 from systemctl 2013-11-08 17:07:42 +01:00
Lennart Poettering
6fd4d02098 update TODO 2013-11-08 14:07:27 +01:00
Lennart Poettering
6cc532fdcc update TODO 2013-11-07 21:41:06 +01:00
Lennart Poettering
49a6199b42 update TODO 2013-11-07 16:53:25 +01:00
Ronny Chevalier
889a90422d test: remove duplicated code 2013-11-07 01:23:54 -05:00
David Strauss
fd201fda7d socket-proxyd: The proxy can now accept multiple sockets (but only to one remote host). 2013-11-07 14:46:31 +10:00