Mach messages: lockd_mach

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osfmk/lockd/lockd_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

1023: lockd_request

Forward an NFS record-lock operation and its file/owner/range parameters to the lock daemon.

Mechanism: This is a lock-daemon protocol declaration with a separately addressed server port. No same-symbol local receiver or direct sender was resolved in the indexed implementation. The declared NFS-lock request/control fields document the boundary, but actual userspace lock-service scheduling, persistence and completion cannot be reconstructed from this declaration.

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

Fields after preprocessing (server64):

simpleroutine lockd_request(
 server : mach_port_t;
 vers : uint32_t;
 flags : uint32_t;
 xid : uint64_t;
 flk_start : int64_t;
 flk_len : int64_t;
 flk_pid : int32_t;
 flk_type : int32_t;
 flk_whence : int32_t;
 sock_address : sock_storage;
 cred : xcred;
 fh_len : uint32_t;
 fh : nfs_handle
);

Implementation boundary: no same-symbol receiver body was resolved in the indexed local C/C++ implementation files.

1024: lockd_ping

Interface contract:

Ping lockd, have launchd start it if its not running

Mechanism: This is a lock-daemon protocol declaration with a separately addressed server port. No same-symbol local receiver or direct sender was resolved in the indexed implementation. The declared NFS-lock request/control fields document the boundary, but actual userspace lock-service scheduling, persistence and completion cannot be reconstructed from this declaration.

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

Fields after preprocessing (server64):

routine lockd_ping(
 server : mach_port_t
);

Implementation boundary: no same-symbol receiver body was resolved in the indexed local C/C++ implementation files.

1025: lockd_shutdown

Request lock-daemon shutdown/cleanup for the supplied peer state.

Mechanism: This is a lock-daemon protocol declaration with a separately addressed server port. No same-symbol local receiver or direct sender was resolved in the indexed implementation. The declared NFS-lock request/control fields document the boundary, but actual userspace lock-service scheduling, persistence and completion cannot be reconstructed from this declaration.

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

Fields after preprocessing (server64):

simpleroutine lockd_shutdown(
 server : mach_port_t
);

Implementation boundary: no same-symbol receiver body was resolved in the indexed local C/C++ implementation files.