bus: do not pass a pointer but a uint64_t address in RECV

[elogind.git] / src / libsystemd-bus / bus-kernel.c

diff --git a/src/libsystemd-bus/bus-kernel.c b/src/libsystemd-bus/bus-kernel.c
index 699d24185ea1e1c521fd87c009a58c66030f01bc..50b28e7281476e46ef114b220636f7de92d5bcbf 100644 (file)
--- a/src/libsystemd-bus/bus-kernel.c
+++ b/src/libsystemd-bus/bus-kernel.c
@@ -345,15 +345,7 @@ int bus_kernel_take_fd(sd_bus *b) {
         }
 
         hello->size = sizeof(h);
-        hello->conn_flags =
-                KDBUS_HELLO_ACCEPT_FD|
-                KDBUS_HELLO_ATTACH_COMM|
-                KDBUS_HELLO_ATTACH_EXE|
-                KDBUS_HELLO_ATTACH_CMDLINE|
-                KDBUS_HELLO_ATTACH_CGROUP|
-                KDBUS_HELLO_ATTACH_CAPS|
-                KDBUS_HELLO_ATTACH_SECLABEL|
-                KDBUS_HELLO_ATTACH_AUDIT;
+        hello->conn_flags = b->hello_flags;
 
         hello->items[0].type = KDBUS_HELLO_POOL;
         hello->items[0].size = KDBUS_ITEM_HEADER_SIZE + sizeof(struct kdbus_vec);
@@ -378,7 +370,7 @@ int bus_kernel_take_fd(sd_bus *b) {
 
         b->is_kernel = true;
         b->bus_client = true;
-        b->can_fds = true;
+        b->can_fds = !!(hello->conn_flags & KDBUS_HELLO_ACCEPT_FD);
 
         r = bus_start_running(b);
         if (r < 0)
@@ -647,19 +639,21 @@ fail:
 }
 
 int bus_kernel_read_message(sd_bus *bus, sd_bus_message **m) {
+        uint64_t addr;
         struct kdbus_msg *k;
         int r;
 
         assert(bus);
         assert(m);
 
-        r = ioctl(bus->input_fd, KDBUS_CMD_MSG_RECV, &k);
+        r = ioctl(bus->input_fd, KDBUS_CMD_MSG_RECV, &addr);
         if (r < 0) {
                 if (errno == EAGAIN)
                         return 0;
 
                 return -errno;
         }
+        k = UINT64_TO_PTR(addr);
 
         r = bus_kernel_make_message(bus, k, m);
         if (r <= 0)