67 static struct nsproxy *create_new_namespaces(unsigned long flags,  in create_new_namespaces()  argument
78 	new_nsp->mnt_ns = copy_mnt_ns(flags, tsk->nsproxy->mnt_ns, user_ns, new_fs);  in create_new_namespaces()
84 	new_nsp->uts_ns = copy_utsname(flags, user_ns, tsk->nsproxy->uts_ns);  in create_new_namespaces()
90 	new_nsp->ipc_ns = copy_ipcs(flags, user_ns, tsk->nsproxy->ipc_ns);  in create_new_namespaces()
97 		copy_pid_ns(flags, user_ns, tsk->nsproxy->pid_ns_for_children);  in create_new_namespaces()
103 	new_nsp->cgroup_ns = copy_cgroup_ns(flags, user_ns,  in create_new_namespaces()
110 	new_nsp->net_ns = copy_net_ns(flags, user_ns, tsk->nsproxy->net_ns);  in create_new_namespaces()
116 	new_nsp->time_ns_for_children = copy_time_ns(flags, user_ns,  in create_new_namespaces()
151 int copy_namespaces(unsigned long flags, struct task_struct *tsk)  in copy_namespaces()  argument
157 	if (likely(!(flags & (CLONE_NEWNS | CLONE_NEWUTS | CLONE_NEWIPC |  in copy_namespaces()
160 		if ((flags & CLONE_VM) ||  in copy_namespaces()
175 	if ((flags & (CLONE_NEWIPC | CLONE_SYSVSEM)) ==  in copy_namespaces()
179 	new_ns = create_new_namespaces(flags, tsk, user_ns, tsk->fs);  in copy_namespaces()
183 	if ((flags & CLONE_VM) == 0)  in copy_namespaces()
276 static int check_setns_flags(unsigned long flags)  in check_setns_flags()  argument
278 	if (!flags || (flags & ~(CLONE_NEWNS | CLONE_NEWUTS | CLONE_NEWIPC |  in check_setns_flags()
284 	if (flags & CLONE_NEWUSER)  in check_setns_flags()
288 	if (flags & CLONE_NEWPID)  in check_setns_flags()
292 	if (flags & CLONE_NEWUTS)  in check_setns_flags()
296 	if (flags & CLONE_NEWIPC)  in check_setns_flags()
300 	if (flags & CLONE_NEWCGROUP)  in check_setns_flags()
304 	if (flags & CLONE_NEWNET)  in check_setns_flags()
308 	if (flags & CLONE_NEWTIME)  in check_setns_flags()
317 	unsigned flags = nsset->flags;  in put_nsset()  local
319 	if (flags & CLONE_NEWUSER)  in put_nsset()
325 	if (nsset->fs && (flags & CLONE_NEWNS) && (flags & ~CLONE_NEWNS))  in put_nsset()
331 static int prepare_nsset(unsigned flags, struct nsset *nsset)  in prepare_nsset()  argument
339 	if (flags & CLONE_NEWUSER)  in prepare_nsset()
347 	if (flags == CLONE_NEWNS) {  in prepare_nsset()
349 	} else if (flags & CLONE_NEWNS) {  in prepare_nsset()
355 	nsset->flags = flags;  in prepare_nsset()
378 	unsigned flags = nsset->flags;  in validate_nsset()  local
408 	if (flags & CLONE_NEWPID) {  in validate_nsset()
420 	if (flags & CLONE_NEWUSER)  in validate_nsset()
432 	if (flags & CLONE_NEWUSER) {  in validate_nsset()
439 	if (flags & CLONE_NEWNS) {  in validate_nsset()
446 	if (flags & CLONE_NEWUTS) {  in validate_nsset()
454 	if (flags & CLONE_NEWIPC) {  in validate_nsset()
462 	if (flags & CLONE_NEWPID) {  in validate_nsset()
470 	if (flags & CLONE_NEWCGROUP) {  in validate_nsset()
478 	if (flags & CLONE_NEWNET) {  in validate_nsset()
486 	if (flags & CLONE_NEWTIME) {  in validate_nsset()
514 	unsigned flags = nsset->flags;  in commit_nsset()  local
518 	if (flags & CLONE_NEWUSER) {  in commit_nsset()
526 	if ((flags & CLONE_NEWNS) && (flags & ~CLONE_NEWNS)) {  in commit_nsset()
532 	if (flags & CLONE_NEWIPC)  in commit_nsset()
537 	if (flags & CLONE_NEWTIME)  in commit_nsset()
546 SYSCALL_DEFINE2(setns, int, fd, int, flags)  in SYSCALL_DEFINE2()  argument
558 		if (flags && (ns->ops->type != flags))  in SYSCALL_DEFINE2()
560 		flags = ns->ops->type;  in SYSCALL_DEFINE2()
562 		err = check_setns_flags(flags);  in SYSCALL_DEFINE2()
569 	err = prepare_nsset(flags, &nsset);  in SYSCALL_DEFINE2()