boolean_t
ipc_kobject_notify(
mach_msg_header_t *request_header,
mach_msg_header_t *reply_header)
{
mach_msg_max_trailer_t * trailer;
ipc_port_t port = (ipc_port_t) request_header->msgh_remote_port;
((mig_reply_error_t *) reply_header)->RetCode = MIG_NO_REPLY;
trailer = (mach_msg_max_trailer_t *)
((vm_offset_t)request_header + request_header->msgh_size);
/*
* The kobject notification is privileged and can change the
* refcount on kernel-internal objects - make sure
* that the message wasn't faked!
*/
if (0 != bcmp(&trailer->msgh_audit, &KERNEL_AUDIT_TOKEN,
sizeof(trailer->msgh_audit))) {
return FALSE;
}
if (0 != bcmp(&trailer->msgh_sender, &KERNEL_SECURITY_TOKEN,
sizeof(trailer->msgh_sender))) {
return FALSE;
}
switch (request_header->msgh_id) {
case MACH_NOTIFY_NO_SENDERS:
switch (ip_kotype(port)) {
case IKOT_VOUCHER:
ipc_voucher_notify(request_header);
return TRUE;
case IKOT_VOUCHER_ATTR_CONTROL:
ipc_voucher_attr_control_notify(request_header);
return TRUE;
case IKOT_SEMAPHORE:
semaphore_notify(request_header);
return TRUE;
case IKOT_TASK:
task_port_notify(request_header);
return TRUE;
case IKOT_NAMED_ENTRY:
ip_lock(port);
/*
* Bring the sequence number and mscount in
* line with ipc_port_destroy assertion.
*/
port->ip_mscount = 0;
port->ip_messages.imq_seqno = 0;
ipc_port_destroy(port); /* releases lock */
return TRUE;
case IKOT_UPL:
upl_no_senders(
request_header->msgh_remote_port,
(mach_port_mscount_t)
((mach_no_senders_notification_t *)
request_header)->not_count);
reply_header->msgh_remote_port = MACH_PORT_NULL;
return TRUE;
#if CONFIG_AUDIT
case IKOT_AU_SESSIONPORT:
audit_session_nosenders(request_header);
return TRUE;
#endif
case IKOT_FILEPORT:
fileport_notify(request_header);
return TRUE;
case IKOT_WORK_INTERVAL:
work_interval_port_notify(request_header);
return TRUE;
}
break;
case MACH_NOTIFY_PORT_DELETED:
case MACH_NOTIFY_PORT_DESTROYED:
case MACH_NOTIFY_SEND_ONCE:
case MACH_NOTIFY_DEAD_NAME:
break;
default:
return FALSE;
}
switch (ip_kotype(port)) {
#ifdef IOKIT
case IKOT_IOKIT_OBJECT:
case IKOT_IOKIT_CONNECT:
case IKOT_IOKIT_SPARE:
{
return iokit_notify(request_header);
}
#endif
case IKOT_TASK_RESUME:
{
return task_suspension_notify(request_header);
}
default:
return FALSE;
}
}
boolean_t
ipc_kobject_notify(
mach_msg_header_t *request_header,
mach_msg_header_t *reply_header)
{
ipc_port_t port = (ipc_port_t) request_header->msgh_remote_port;
((mig_reply_error_t *) reply_header)->RetCode = MIG_NO_REPLY;
switch (request_header->msgh_id) {
case MACH_NOTIFY_NO_SENDERS:
switch (ip_kotype(port)) {
case IKOT_VOUCHER:
ipc_voucher_notify(request_header);
return TRUE;
case IKOT_VOUCHER_ATTR_CONTROL:
ipc_voucher_attr_control_notify(request_header);
return TRUE;
case IKOT_SEMAPHORE:
semaphore_notify(request_header);
return TRUE;
case IKOT_NAMED_ENTRY:
ip_lock(port);
/*
* Bring the sequence number and mscount in
* line with ipc_port_destroy assertion.
*/
port->ip_mscount = 0;
port->ip_messages.imq_seqno = 0;
ipc_port_destroy(port); /* releases lock */
return TRUE;
case IKOT_UPL:
upl_no_senders(
request_header->msgh_remote_port,
(mach_port_mscount_t)
((mach_no_senders_notification_t *)
request_header)->not_count);
reply_header->msgh_remote_port = MACH_PORT_NULL;
return TRUE;
#if CONFIG_AUDIT
case IKOT_AU_SESSIONPORT:
audit_session_nosenders(request_header);
return TRUE;
#endif
case IKOT_FILEPORT:
fileport_notify(request_header);
return TRUE;
}
break;
case MACH_NOTIFY_PORT_DELETED:
case MACH_NOTIFY_PORT_DESTROYED:
case MACH_NOTIFY_SEND_ONCE:
case MACH_NOTIFY_DEAD_NAME:
break;
default:
return FALSE;
}
switch (ip_kotype(port)) {
#ifdef IOKIT
case IKOT_IOKIT_OBJECT:
case IKOT_IOKIT_CONNECT:
case IKOT_IOKIT_SPARE:
{
return iokit_notify(request_header);
}
#endif
case IKOT_TASK_RESUME:
{
return task_suspension_notify(request_header);
}
default:
return FALSE;
}
}