87 static struct nsproxy *create_new_namespaces(u64 flags,  in create_new_namespaces()  argument
98 	new_nsp->mnt_ns = copy_mnt_ns(flags, tsk->nsproxy->mnt_ns, user_ns, new_fs);  in create_new_namespaces()
104 	new_nsp->uts_ns = copy_utsname(flags, user_ns, tsk->nsproxy->uts_ns);  in create_new_namespaces()
110 	new_nsp->ipc_ns = copy_ipcs(flags, user_ns, tsk->nsproxy->ipc_ns);  in create_new_namespaces()
117 		copy_pid_ns(flags, user_ns, tsk->nsproxy->pid_ns_for_children);  in create_new_namespaces()
123 	new_nsp->cgroup_ns = copy_cgroup_ns(flags, user_ns,  in create_new_namespaces()
130 	new_nsp->net_ns = copy_net_ns(flags, user_ns, tsk->nsproxy->net_ns);  in create_new_namespaces()
136 	new_nsp->time_ns_for_children = copy_time_ns(flags, user_ns,  in create_new_namespaces()
167 int copy_namespaces(u64 flags, struct task_struct *tsk)  in copy_namespaces()  argument
173 	if (likely(!(flags & (CLONE_NEWNS | CLONE_NEWUTS | CLONE_NEWIPC |  in copy_namespaces()
176 		if ((flags & CLONE_VM) ||  in copy_namespaces()
191 	if ((flags & (CLONE_NEWIPC | CLONE_SYSVSEM)) ==  in copy_namespaces()
195 	new_ns = create_new_namespaces(flags, tsk, user_ns, tsk->fs);  in copy_namespaces()
199 	if ((flags & CLONE_VM) == 0)  in copy_namespaces()
293 static int check_setns_flags(unsigned long flags)  in check_setns_flags()  argument
295 	if (!flags || (flags & ~(CLONE_NEWNS | CLONE_NEWUTS | CLONE_NEWIPC |  in check_setns_flags()
301 	if (flags & CLONE_NEWUSER)  in check_setns_flags()
305 	if (flags & CLONE_NEWPID)  in check_setns_flags()
309 	if (flags & CLONE_NEWUTS)  in check_setns_flags()
313 	if (flags & CLONE_NEWIPC)  in check_setns_flags()
317 	if (flags & CLONE_NEWCGROUP)  in check_setns_flags()
321 	if (flags & CLONE_NEWNET)  in check_setns_flags()
325 	if (flags & CLONE_NEWTIME)  in check_setns_flags()
334 	unsigned flags = nsset->flags;  in put_nsset()  local
336 	if (flags & CLONE_NEWUSER)  in put_nsset()
342 	if (nsset->fs && (flags & CLONE_NEWNS) && (flags & ~CLONE_NEWNS))  in put_nsset()
348 static int prepare_nsset(unsigned flags, struct nsset *nsset)  in prepare_nsset()  argument
356 	if (flags & CLONE_NEWUSER)  in prepare_nsset()
364 	if (flags == CLONE_NEWNS) {  in prepare_nsset()
366 	} else if (flags & CLONE_NEWNS) {  in prepare_nsset()
372 	nsset->flags = flags;  in prepare_nsset()
395 	unsigned flags = nsset->flags;  in validate_nsset()  local
425 	if (flags & CLONE_NEWPID) {  in validate_nsset()
437 	if (flags & CLONE_NEWUSER)  in validate_nsset()
449 	if (flags & CLONE_NEWUSER) {  in validate_nsset()
456 	if (flags & CLONE_NEWNS) {  in validate_nsset()
463 	if (flags & CLONE_NEWUTS) {  in validate_nsset()
471 	if (flags & CLONE_NEWIPC) {  in validate_nsset()
479 	if (flags & CLONE_NEWPID) {  in validate_nsset()
487 	if (flags & CLONE_NEWCGROUP) {  in validate_nsset()
495 	if (flags & CLONE_NEWNET) {  in validate_nsset()
503 	if (flags & CLONE_NEWTIME) {  in validate_nsset()
531 	unsigned flags = nsset->flags;  in commit_nsset()  local
535 	if (flags & CLONE_NEWUSER) {  in commit_nsset()
543 	if ((flags & CLONE_NEWNS) && (flags & ~CLONE_NEWNS)) {  in commit_nsset()
549 	if (flags & CLONE_NEWIPC)  in commit_nsset()
554 	if (flags & CLONE_NEWTIME)  in commit_nsset()
563 SYSCALL_DEFINE2(setns, int, fd, int, flags)  in SYSCALL_DEFINE2()  argument
575 		if (flags && (ns->ns_type != flags))  in SYSCALL_DEFINE2()
577 		flags = ns->ns_type;  in SYSCALL_DEFINE2()
579 		err = check_setns_flags(flags);  in SYSCALL_DEFINE2()
586 	err = prepare_nsset(flags, &nsset);  in SYSCALL_DEFINE2()