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IPC Hooks

The Linux kernel provides the standard SysV IPC mechanisms: shared memory, semaphores, and message queues. LSM defines a set of IPC hooks which mediate access to the kernel's IPC objects. Given the design of the kernel's IPC data structures, LSM defines one common set of IPC hooks, ipc_security_ops, as well as sets of object specific IPC hooks: shm_security_ops, sem_security_ops, msg_queue_security_ops, and msg_msg_security_ops.


James Morris