SBUS: Add an async request to retrieve the caller ID

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

1 files changed, 22 insertions, 0 deletions

diff --git a/Makefile.am b/Makefile.am
index 0dfd6003d..65595aa06 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -163,6 +163,7 @@ if HAVE_CMOCKA
         ad_common_tests \
         dp_opt_tests \
         responder-get-domains-tests \
+        sbus-internal-tests \
         test_search_bases
 endif
 
@@ -1411,6 +1412,27 @@ responder_get_domains_tests_LDADD = \
     $(SSSD_INTERNAL_LTLIBS) \
     libsss_test_common.la
 
+sbus_internal_tests_SOURCES = \
+    src/tests/cmocka/sbus_internal_tests.c \
+    src/sbus/sssd_dbus_request.c
+sbus_internal_tests_CFLAGS = \
+    $(AM_CFLAGS)
+sbus_internal_tests_LDFLAGS = \
+    -Wl,-wrap,dbus_bus_get \
+    -Wl,-wrap,dbus_pending_call_steal_reply \
+    -Wl,-wrap,dbus_pending_call_unref \
+    -Wl,-wrap,dbus_message_unref \
+    -Wl,-wrap,dbus_connection_unref \
+    -Wl,-wrap,dbus_connection_set_exit_on_disconnect \
+    -Wl,-wrap,hash_lookup
+sbus_internal_tests_LDADD = \
+    $(CMOCKA_LIBS) \
+    $(SSSD_LIBS) \
+    libsss_util.la \
+    libsss_crypt.la \
+    libsss_debug.la \
+    libsss_test_common.la
+
 test_find_uid_DEPENDENCIES = \
     $(ldblib_LTLIBRARIES)
 test_find_uid_SOURCES = \