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-rw-r--r--src/libsystemd-bus/bus-kernel.c3
-rw-r--r--src/libsystemd-bus/kdbus.h2
2 files changed, 5 insertions, 0 deletions
diff --git a/src/libsystemd-bus/bus-kernel.c b/src/libsystemd-bus/bus-kernel.c
index 959392a62d..d2fcfd7f92 100644
--- a/src/libsystemd-bus/bus-kernel.c
+++ b/src/libsystemd-bus/bus-kernel.c
@@ -357,6 +357,9 @@ int bus_kernel_take_fd(sd_bus *b) {
b->bus_client = true;
b->can_fds = !!(hello.conn_flags & KDBUS_HELLO_ACCEPT_FD);
+ /* the kernel told us the UUID of the underlying bus */
+ memcpy(b->server_id.bytes, hello.id128, sizeof(b->server_id.bytes));
+
r = bus_start_running(b);
if (r < 0)
return r;
diff --git a/src/libsystemd-bus/kdbus.h b/src/libsystemd-bus/kdbus.h
index 52085b92c9..c69c1feec7 100644
--- a/src/libsystemd-bus/kdbus.h
+++ b/src/libsystemd-bus/kdbus.h
@@ -276,6 +276,8 @@ struct kdbus_cmd_hello {
__u64 bloom_size; /* The bloom filter size chosen by the
* bus owner */
__u64 pool_size; /* maximum size of pool buffer */
+ __u8 id128[16]; /* the unique id of the bus */
+
struct kdbus_item items[0];
};