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Adds an async request sbus_get_sender_id_{send,recv} that allows
retrieval of UID based on "sender" as returned by
dbus_message_get_sender().
The UID is an int64_t to be able to use "-1" to as a fallback value for
uknown or error cases.
The unit test is added as a standalone one, not part of the sbus_tests
because the request, and by extension the unit test relies on being
connected to the system bus, which is very unlikely to work in a build
system.
Reviewed-by: Pavel Březina <pbrezina@redhat.com>
Reviewed-by: Stef Walter <stefw@redhat.com>
(cherry picked from commit 0161a3c5637a0c0092bf54c436bb3d6508d7df26)
Conflicts:
Makefile.am
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Adds a convenience function that constructs a DBusError on top of a talloc
context and as such can be used to mark an sbus request as failed without
having to create a DBusError instance by the caller.
Reviewed-by: Pavel Březina <pbrezina@redhat.com>
Reviewed-by: Stef Walter <stefw@redhat.com>
(cherry picked from commit 87729e3a6c56383642a8d3a86b2856487f2ee064)
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Reviewed-by: Pavel Březina <pbrezina@redhat.com>
Reviewed-by: Stef Walter <stefw@redhat.com>
(cherry picked from commit 94f07a6f4375ec25d8fa5c99a0c4f68de7002457)
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In SSSD we tend to use {} brackets around single-line blocks, too to
make sure we don't forget to add them should the block become larger.
We also don't add a space between function name and the opening "(".
Reviewed-by: Pavel Březina <pbrezina@redhat.com>
Reviewed-by: Stef Walter <stefw@redhat.com>
(cherry picked from commit 3d5908ed0faf400a5c7d9c3e4312597ee1b7786a)
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fixes:
sssd_dbus_request.c:28:1: error: missing initializer [-Werror=missing-field-initializers]
sssd_dbus_request.c:28:1: error: (near initialization for 'error_internal.dummy1') [-Werror=missing-field-initializers]
(cherry picked from commit 8779b9ee101ed3e5a6836b5366c006dc21dd36c0)
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Type safe method handlers allow methods not to have to do tedious
unwrapping and wrapping of DBus method call messages or replies.
Arguments of the following DBus types are supported in type-safe
method handlers. In addition arrays of these are supported.
y: uint8_t
b: bool (but no arrays, yet)
n: int16_t
q: uint16_t
i: int32_t
u: uint32_t
x: int64_t
t: uint64_t
d: double
s: char * (utf8 string)
o: char * (object path)
As an exception, arrays of booleans are not supported, but could be
added later. Other more complex types could be added later if desired.
If a method has other argument types, then it must be marked as having
a raw handler (see below).
Internally each method can have a type specific invoker function which
unpacks the incoming arguments and invokes the method handler with the
correct arguments.
Each method also has a finish which accepts the type-safe out arguments
(ie: return values) and builds the reply message. Like other request
'finish' functions, these free the request talloc context, and are to
be used in place of sbus_request_finish() or friends.
Raw method handlers parse their own method arguments, and prepare their
own reply (ideally using sbus_request_finish() helpers). They can also
do strange things like have variable arguments. To mark a DBus method
as having a raw method handler use the following annotation:
<annotation name="org.freedesktop.sssd.RawHandler" value="true"/>
Raw methods do not have invokers or finish functions.
I've left all of the internal peer to peer communication using raw
method handlers. No code changes here.
(cherry picked from commit dff909d473f43a6bd0f0286fa2d279c0ebe945c6)
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Some DBus types returned from dbus_message_get_args() require memory
to be released when done. We automatically attach these to the talloc
struct sbus_request memory context in this function.
This accepts varargs similar to dbus_message_get_args(), which are
rather awkward. However instead of reworking them completely, future
generated marshalling code will replace most uses of these varargs.
If parsing the dbus message fails, then it responds to the DBus caller
with an appropriate error such as o.f.D.Error.InvalidArgs. In these
cases (ie: when it returns FALSE) the sbus_request is finished.
Migrated some, but not all, uses of dbus_message_get_args() to the
new function. Some instances have uncommon semantics such as terminating
the connection upon failure to parse a message.
Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>
Reviewed-by: Pavel Březina <pbrezina@redhat.com>
Reviewed-by: Lukáš Slebodník <lslebodn@redhat.com>
(cherry picked from commit 06b7bc8ca2e005ed510210d3b8dee16afbabbcc9)
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struct sbus_request represents a request from a dbus client
being handled by a dbus server implementation. The struct
contains the message, connection and method (and in the
future teh property) which is being requested.
In the future it will contain caller information as well.
sbus_request is a talloc memory context, and is a good place to
attach any allocations and memory specific to the request.
Each handler accepts an sbus_request. If a handler returns
EOK, it is assumed that the handler will finish the request.
Any of the sbus_request_*finish() methods can be used to
complete the request and send back a reply.
sbus_request_return_and_finish() uses the same argument
varargs syntax as dbus_message_append_args(), which isn't
a great syntax. Document it a bit, but don't try to redesign:
The marshalling work (will follow this patch set) will remove
the need to use varargs for most DBus implementation code.
This patch migrates the monitor and data provider dbus code
to use sbus_request, but does not try to rework the talloc
context's to use it.
Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>
Reviewed-by: Pavel Březina <pbrezina@redhat.com>
Reviewed-by: Lukáš Slebodník <lslebodn@redhat.com>
(cherry picked from commit d9577dbd92555b0755881e37724019ef9c578404)
Conflicts:
src/sbus/sssd_dbus.h
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