Mach messages: kextd_mach

Message catalog and dispatch · All subsystem ranges · Kernel entry map

osfmk/kextd/kextd_mach.defs. Service/callback interface outside the ordinary kernel kobject table. Follow local sender/receiver evidence; external service bodies are not supplied by the declaration. Registration evidence: mig_e.

Reading these entries

IDs are computed from the explicit preprocessing profiles in the catalog guide, counting both routines and skip slots. They are not discovered from a running kernel. Each entry retains all observed names/declaration locations; the displayed fields come from the first non-skipped profile. Alternative declarations can have different fields. simpleroutine is one-way at the MIG interface level.

An interface contract block quotes the adjacent local .defs comment with whitespace normalized. Mechanism paragraphs explain selected implementation decisions. Local body links and call names identify implementation evidence; syntactic call lists are reading aids, not a proof that every listed call executes on every path. Short complete implementation bodies are included where especially useful.

Complete routine and reserved-slot catalog

77000: kextd_ping

Interface contract:

Ping kextd, launchd starts it if it's not running.

Mechanism: OSKext::pingIOKitDaemon is gated by NO_KEXTD and the daemon-active state, obtains the host kextd endpoint, sends the ping, logs failures and releases the port on exit. The request prompts the external daemon; its loading/policy work is not the body of this kernel wrapper. Local path.

Declarations: kextd_ping (server64, server32, client64, client32, libsyscall64, sender64, local64).

Fields after preprocessing (server64):

simpleroutine kextd_ping(
 server : mach_port_t
);

Implementation boundary: no same-symbol receiver body was resolved in the indexed local C/C++ implementation files. Local source occurrences to follow: libkern/c++/OSKext.cpp:1575. These may be senders, wrappers or declarations; they do not establish a local receiver.