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Diffstat (limited to 'src/libsystemd/sd-bus/DIFFERENCES')
| -rw-r--r-- | src/libsystemd/sd-bus/DIFFERENCES | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/libsystemd/sd-bus/DIFFERENCES b/src/libsystemd/sd-bus/DIFFERENCES new file mode 100644 index 0000000000..fd7506b993 --- /dev/null +++ b/src/libsystemd/sd-bus/DIFFERENCES @@ -0,0 +1,28 @@ +Known differences between dbus1 and kdbus: + +- NameAcquired/NameLost is gone entirely on kdbus backends if + libsystemd is used. It is still added in by systemd-bus-proxyd + for old dbus1 clients, and it is available if libsystemd is used + against the classic dbus1 daemon. If you want to write compatible + code with libsystem-bus you need to explicitly subscribe to + NameOwnerChanged signals and just ignore NameAcquired/NameLost + +- Applications have to deal with spurious signals they didn't expect, + due to the probabilistic bloom filters. They need to handle this + anyway, given that any client can send anything to arbitrary clients + anyway, even in dbus1, so not much changes. + +- clients of the system bus when kdbus is used must roll their own + security. Only legacy dbus1 clients get the old XML policy enforced, + which is implemented by systemd-bus-proxyd. + +- Serial numbers of synthesized messages are always (uint32_t) -1. + +- The org.freedesktop.DBus "driver" service is not special on + kdbus. It is a bus activated service like any other with its own + unique name. + +- NameOwnerChanged is a synthetic message, generated locally and not + by the driver. + +- There's no standard per-session bus anymore. Only a per-user bus. |