IPC_CHECK_PERMS(9)                    Kernel IPC facilities                    IPC_CHECK_PERMS(9)



NAME
       ipc_check_perms - check security and permissions for an ipc object

SYNOPSIS
       int ipc_check_perms(struct ipc_namespace * ns, struct kern_ipc_perm * ipcp,
                           const 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 ds IDR.

       On success, the ipc id is returned.

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

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                        IPC_CHECK_PERMS(9)