* include/mach/mach_port.defs: Add mach_port_set_protected_payload. * ipc/mach_port.c: Implement mach_port_set_protected_payload. --- include/mach/mach_port.defs | 9 +++++++++ ipc/mach_port.c | 37 +++++++++++++++++++++++++++++++++++++ 2 files changed, 46 insertions(+)
diff --git a/include/mach/mach_port.defs b/include/mach/mach_port.defs index 769d892..96a5987 100644 --- a/include/mach/mach_port.defs +++ b/include/mach/mach_port.defs @@ -349,3 +349,12 @@ skip; /* mach_port_create_act */ #endif /* MIGRATING_THREADS */ +/* + * Only valid for receive rights. + * Set the protected payload for this right to the given value. + */ + +routine mach_port_set_protected_payload( + task : ipc_space_t; + name : mach_port_name_t; + payload : natural_t); diff --git a/ipc/mach_port.c b/ipc/mach_port.c index 13572a1..14c3653 100644 --- a/ipc/mach_port.c +++ b/ipc/mach_port.c @@ -1564,3 +1564,40 @@ mach_port_set_syscall_right(task, name) } #endif #endif /* MIGRATING_THREADS */ + +/* + * Routine: mach_port_set_protected_payload [kernel call] + * Purpose: + * Changes a receive right's protected payload. + * Conditions: + * Nothing locked. + * Returns: + * KERN_SUCCESS Set protected payload. + * KERN_INVALID_TASK The space is null. + * KERN_INVALID_TASK The space is dead. + * KERN_INVALID_NAME The name doesn't denote a right. + * KERN_INVALID_RIGHT Name doesn't denote receive rights. + */ + +kern_return_t +mach_port_set_protected_payload( + ipc_space_t space, + mach_port_t name, + unsigned long payload) +{ + ipc_port_t port; + kern_return_t kr; + + if (space == IS_NULL) + return KERN_INVALID_TASK; + + kr = ipc_port_translate_receive(space, name, &port); + if (kr != KERN_SUCCESS) + return kr; + /* port is locked and active */ + + ipc_port_set_protected_payload(port, payload); + + ip_unlock(port); + return KERN_SUCCESS; +} -- 1.8.5.2