X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/8f6c56a50524aa785f7e596d52dddfb331e18961..39236c6e673c41db228275375ab7fdb0f837b292:/osfmk/mach/mach_port.defs?ds=sidebyside diff --git a/osfmk/mach/mach_port.defs b/osfmk/mach/mach_port.defs index b325ba41f..8591f77d4 100644 --- a/osfmk/mach/mach_port.defs +++ b/osfmk/mach/mach_port.defs @@ -68,6 +68,10 @@ subsystem #endif /* KERNEL_SERVER */ mach_port 3200; +#if !KERNEL && !LIBSYSCALL_INTERFACE + UserPrefix _kernelrpc_; +#endif + #include #include #include @@ -98,6 +102,9 @@ routine mach_port_type( * Changes the name by which a port (or port set) is known to * the target task. The new name can't be in use. The * old name becomes available for recycling. + * + * This interface is OBSOLETE and will always + * return KERN_NOT_SUPPORTED. */ routine mach_port_rename( @@ -201,7 +208,30 @@ routine mach_port_mod_refs( right : mach_port_right_t; delta : mach_port_delta_t); -skip; +/* + * Peek at the message queue for the specified receive + * right and return info about the message with the + * sequence number matching the input. If zero is + * specified as the seqno, the first message in the + * queue will be peeked. + * + * Only the following trailer types are currently supported: + * MACH_RCV_TRAILER_TYPE(MACH_MSG_TRAILER_FORMAT_0) + * + * or'ed with one of these element types: + * MACH_RCV_TRAILER_ELEMENTS(MACH_RCV_TRAILER_NULL) + * MACH_RCV_TRAILER_ELEMENTS(MACH_RCV_TRAILER_SEQNO) + * MACH_RCV_TRAILER_ELEMENTS(MACH_RCV_TRAILER_SENDER) + * MACH_RCV_TRAILER_ELEMENTS(MACH_RCV_TRAILER_AUDIT) + */ +routine mach_port_peek( + task : ipc_space_t; + name : mach_port_name_t; + trailer_type : mach_msg_trailer_type_t; + inout request_seqnop : mach_port_seqno_t; + out msg_sizep : mach_msg_size_t; + out msg_idp : mach_msg_id_t; + out trailer_infop : mach_msg_trailer_info_t, CountInOut); /* * Only valid for receive rights. @@ -224,9 +254,10 @@ routine mach_port_get_set_status( /* * Puts the member port (the task must have receive rights) - * into the after port set. (Or removes it from any port set - * if after is MACH_PORT_NULL.) If the port is already in - * a set, does an atomic move. + * into the after port set. If the port is already a member + * of any set(s), it is atomically removed from those sets as + * part of this operation. (If after is MACH_PORT_NULL, the + * port is still removed from all current sets). */ routine mach_port_move_member( @@ -238,9 +269,10 @@ routine mach_port_move_member( * Requests a notification from the kernel. The request * must supply the send-once right which is used for * the notification. If a send-once right was previously - * registered, it is returned. The msg_id must be one of + * registered, it is returned. The msgid must be one of: * MACH_NOTIFY_PORT_DESTROYED (receive rights) * MACH_NOTIFY_DEAD_NAME (send/receive/send-once rights) + * MACH_NOTIFY_SEND_POSSIBLE (send/receive/send-once rights) * MACH_NOTIFY_NO_SENDERS (receive rights) * * The sync value specifies whether a notification should @@ -250,10 +282,20 @@ routine mach_port_move_member( * MACH_NOTIFY_DEAD_NAME: if non-zero, then name can be dead, * and the notification gets sent immediately. * If zero, then name can't be dead. + * MACH_NOTIFY_SEND_POSSIBLE: if non-zero, will generate a send- + * possible notification as soon as it is possible to send + * to the port. If zero, will generate a send-possible + * notification only after a subsequent failed send + * (with MACH_SEND_NOTIFY option to mach_msg call). Can + * generate a dead-name notification if name is already dead + * or becomes dead before a send-possible notification fires. * MACH_NOTIFY_NO_SENDERS: the notification gets sent * immediately if the current mscount is greater * than or equal to the sync value and there are no * extant send rights. + * + * If the name is deleted before a successfully registered notification + * is delivered, it is replaced with a port-deleted notification. */ routine mach_port_request_notification( @@ -385,10 +427,8 @@ routine mach_port_get_srights( routine mach_port_space_info( task : ipc_space_t; out space_info : ipc_info_space_t; - out table_info : ipc_info_name_array_t, - Dealloc; - out tree_info : ipc_info_tree_name_array_t, - Dealloc); + out table_info : ipc_info_name_array_t; + out tree_info : ipc_info_tree_name_array_t); /* * Returns information about the dead-name requests @@ -407,12 +447,15 @@ routine mach_port_dnrequest_info( * that the given send/receive right represents. * This call is only valid on MACH_IPC_DEBUG kernels. * Otherwise, KERN_FAILURE is returned. + * + * This interface is DEPRECATED in favor of the new + * mach_port_kernel_object64() call (see below). */ routine mach_port_kernel_object( task : ipc_space_t; name : mach_port_name_t; out object_type : unsigned; - out object_addr : vm_offset_t); + out object_addr : unsigned); /* @@ -454,3 +497,109 @@ routine mach_port_extract_member( name : mach_port_name_t; pset : mach_port_name_t); +/* + * Only valid for receive rights. + * Gets the context pointer for the port. + */ + +routine mach_port_get_context( + task : ipc_space_t; + name : mach_port_name_t; +#ifdef LIBSYSCALL_INTERFACE + out context : mach_port_context_t +#else + out context : mach_vm_address_t +#endif + ); + +/* + * Only valid for receive rights. + * Sets the context pointer for the port. + */ + +routine mach_port_set_context( + task : ipc_space_t; + name : mach_port_name_t; +#ifdef LIBSYSCALL_INTERFACE + context : mach_port_context_t +#else + context : mach_vm_address_t +#endif + ); + +/* + * Return the type and address of the kernel object + * that the given send/receive right represents. + * This call is only valid on MACH_IPC_DEBUG kernels. + * Otherwise, KERN_FAILURE is returned. + */ +routine mach_port_kobject( + task : ipc_space_t; + name : mach_port_name_t; + out object_type : natural_t; + out object_addr : mach_vm_address_t); + + +/* + * Constructs a right based on the options passed + * in. Also allows guarding the port as one of the + * options if the requested right is a receive + * right. + */ +routine mach_port_construct( + task : ipc_space_t; + options : mach_port_options_ptr_t; +#ifdef LIBSYSCALL_INTERFACE + context : mach_port_context_t; +#else + context : uint64_t; +#endif + out name : mach_port_name_t); + +/* + * Destroys a mach port using the guard provided + * for guarded ports. Also reduces the user ref + * count for send rights as specified by srdelta. + */ +routine mach_port_destruct( + task : ipc_space_t; + name : mach_port_name_t; + srdelta : mach_port_delta_t; +#ifdef LIBSYSCALL_INTERFACE + guard : mach_port_context_t +#else + guard : uint64_t +#endif + ); + +/* + * Guard an already existing port. Allows guarding + * receive rights only. Uses the context field in the + * port structure to store the guard. + */ +routine mach_port_guard( + task : ipc_space_t; + name : mach_port_name_t; +#ifdef LIBSYSCALL_INTERFACE + guard : mach_port_context_t; +#else + guard : uint64_t; +#endif + strict : boolean_t); + +/* + * Unguard a port guarded previously. For unguarded ports + * or incorrect guards passed in it raises an exception + * indicating guarding misbehavior. + */ +routine mach_port_unguard( + task : ipc_space_t; + name : mach_port_name_t; +#ifdef LIBSYSCALL_INTERFACE + guard : mach_port_context_t +#else + guard : uint64_t +#endif + ); + +/* vim: set ft=c : */