centos man page for ipc_check_perms

IPC_CHECK_PERMS(9)					       Kernel IPC facilities						IPC_CHECK_PERMS(9)

NAME
       ipc_check_perms - check security and permissions for an IPC

SYNOPSIS
       int ipc_check_perms(struct ipc_namespace * ns, struct kern_ipc_perm * ipcp, struct ipc_ops * ops, struct ipc_params * params);

ARGUMENTS
       ns
	   IPC namespace

       ipcp
	   ipc permission set

       ops
	   the actual security routine to call

       params
	   its parameters

DESCRIPTION
       This routine is called by sys_msgget, sys_semget and sys_shmget when the key is not IPC_PRIVATE and that key already exists in the ids IDR.

       On success, the IPC id is returned.

       It is called with ipc_ids.rwsem and ipcp->lock held.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							IPC_CHECK_PERMS(9)