security_shm_shmctl
int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd);
err = security_shm_shmctl(&shp->shm_perm, cmd);
int err = security_shm_shmctl(NULL, IPC_INFO);
int err = security_shm_shmctl(NULL, SHM_INFO);
err = security_shm_shmctl(&shp->shm_perm, cmd);
err = security_shm_shmctl(&shp->shm_perm, cmd);