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bb6530eb34
It turns out that we didn't observe padding (neither when reading nor
writing) for empty arrays which (apparently) is needed according to
the D-Bus spec and reference implementation. A simple test case to
provoke this behavior is as follows (notice the lack of 4 bytes worth
of padding at position 0x0064):
Error calling dbus_message_demarshal() on this blob: org.freedesktop.DBus.Error.InvalidArgs: Message is corrupted (Alignment padding not null)
0000: 6c 01 00 01 2e 00 00 00 41 00 00 00 37 00 00 00 l.......A...7...
0010: 08 01 67 00 08 73 61 7b 73 76 7d 61 73 00 00 00 ..g..sa{sv}as...
0020: 01 01 6f 00 08 00 00 00 2f 66 6f 6f 2f 62 61 72 ..o...../foo/bar
0030: 00 00 00 00 00 00 00 00 03 01 73 00 06 00 00 00 ..........s.....
0040: 4d 65 6d 62 65 72 00 00 11 00 00 00 30 31 32 33 Member......0123
0050: 34 35 36 37 38 39 30 31 32 33 34 35 36 00 00 00 4567890123456...
0060: 00 00 00 00 0e 00 00 00 09 00 00 00 53 6f 6d 65 ............Some
0070: 74 68 69 6e 67 00 thing.
The blob was generated from the following GVariant value:
('01234567890123456', @a{sv} {}, ['Something'])
If the blob was encoded using DBusMessageIter, the payload would have been:
0000: 6c 01 00 01 32 00 00 00 41 00 00 00 36 00 00 00 l...2...A...6...
0010: 01 01 6f 00 08 00 00 00 2f 66 6f 6f 2f 62 61 72 ..o...../foo/bar
0020: 00 00 00 00 00 00 00 00 03 01 73 00 06 00 00 00 ..........s.....
0030: 4d 65 6d 62 65 72 00 00 08 01 67 00 08 73 61 7b Member....g..sa{
0040: 73 76 7d 61 73 00 00 00 11 00 00 00 30 31 32 33 sv}as.......0123
0050: 34 35 36 37 38 39 30 31 32 33 34 35 36 00 00 00 4567890123456...
0060: 00 00 00 00 00 00 00 00 0e 00 00 00 09 00 00 00 ................
0070: 53 6f 6d 65 74 68 69 6e 67 00 Something.
** ERROR:gdbus-serialization.c:547:check_serialization: code should not be reached
Aborted
and this is now in the libdbus-1-using serialization test case.
Signed-off-by: David Zeuthen <davidz@redhat.com>
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| .. | ||
| schema-tests | ||
| .gitignore | ||
| async-close-output-stream.c | ||
| buffered-input-stream.c | ||
| contexts.c | ||
| converter-stream.c | ||
| data-input-stream.c | ||
| data-output-stream.c | ||
| de.po | ||
| desktop-app-info.c | ||
| echo-server.c | ||
| filter-cat.c | ||
| filter-streams.c | ||
| g-file-info.c | ||
| g-file.c | ||
| g-icon.c | ||
| gdbus-addresses.c | ||
| gdbus-connection.c | ||
| gdbus-error.c | ||
| gdbus-example-export.c | ||
| gdbus-example-own-name.c | ||
| gdbus-example-peer.c | ||
| gdbus-example-proxy-subclass.c | ||
| gdbus-example-server.c | ||
| gdbus-example-subtree.c | ||
| gdbus-example-unix-fd-client.c | ||
| gdbus-example-watch-name.c | ||
| gdbus-example-watch-proxy.c | ||
| gdbus-exit-on-close.c | ||
| gdbus-export.c | ||
| gdbus-introspection.c | ||
| gdbus-names.c | ||
| gdbus-peer.c | ||
| gdbus-proxy.c | ||
| gdbus-serialization.c | ||
| gdbus-sessionbus.c | ||
| gdbus-sessionbus.h | ||
| gdbus-tests.c | ||
| gdbus-tests.h | ||
| gdbus-testserver.py | ||
| gdbus-threading.c | ||
| gschema-compile.c | ||
| gsettings.c | ||
| httpd.c | ||
| live-g-file.c | ||
| live-g-file.txt | ||
| Makefile.am | ||
| memory-input-stream.c | ||
| memory-output-stream.c | ||
| org.gtk.test.gschema | ||
| org.gtk.test.gschema.xml | ||
| readwrite.c | ||
| resolver.c | ||
| send-data.c | ||
| simple-async-result.c | ||
| sleepy-stream.c | ||
| socket-client.c | ||
| socket-common.c | ||
| socket-server.c | ||
| srvtarget.c | ||
| unix-fd.c | ||
| unix-streams.c | ||
| win32-streams.c | ||