125 #define EMBEDDED_NAME_MAX	(PATH_MAX - offsetof(struct filename, iname))
127 struct filename *
128 getname_flags(const char __user *filename, int flags, int *empty)  in getname_flags()  argument
130 	struct filename *result;  in getname_flags()
134 	result = audit_reusename(filename);  in getname_flags()
149 	len = strncpy_from_user(kname, filename, EMBEDDED_NAME_MAX);  in getname_flags()
162 		const size_t size = offsetof(struct filename, iname[1]);  in getname_flags()
176 		len = strncpy_from_user(kname, filename, PATH_MAX);  in getname_flags()
200 	result->uptr = filename;  in getname_flags()
206 struct filename *
207 getname_uflags(const char __user *filename, int uflags)  in getname_uflags()  argument
211 	return getname_flags(filename, flags, NULL);  in getname_uflags()
214 struct filename *
215 getname(const char __user * filename)  in getname()  argument
217 	return getname_flags(filename, 0, NULL);  in getname()
220 struct filename *
221 getname_kernel(const char * filename)  in getname_kernel()  argument
223 	struct filename *result;  in getname_kernel()
224 	int len = strlen(filename) + 1;  in getname_kernel()
233 		const size_t size = offsetof(struct filename, iname[1]);  in getname_kernel()
234 		struct filename *tmp;  in getname_kernel()
247 	memcpy((char *)result->name, filename, len);  in getname_kernel()
257 void putname(struct filename *name)  in putname()
581 	struct filename	*name;
593 static void __set_nameidata(struct nameidata *p, int dfd, struct filename *name)  in __set_nameidata()
607 static inline void set_nameidata(struct nameidata *p, int dfd, struct filename *name,  in set_nameidata()
2476 int filename_lookup(int dfd, struct filename *name, unsigned flags,  in filename_lookup()
2515 static int __filename_parentat(int dfd, struct filename *name,  in __filename_parentat()
2540 static int filename_parentat(int dfd, struct filename *name,  in filename_parentat()
2548 static struct dentry *__kern_path_locked(struct filename *name, struct path *path)  in __kern_path_locked()
2572 	struct filename *filename = getname_kernel(name);  in kern_path_locked()  local
2573 	struct dentry *res = __kern_path_locked(filename, path);  in kern_path_locked()
2575 	putname(filename);  in kern_path_locked()
2581 	struct filename *filename = getname_kernel(name);  in kern_path()  local
2582 	int ret = filename_lookup(AT_FDCWD, filename, flags, path, NULL);  in kern_path()
2584 	putname(filename);  in kern_path()
2599 int vfs_path_parent_lookup(struct filename *filename, unsigned int flags,  in vfs_path_parent_lookup()  argument
2603 	return  __filename_parentat(AT_FDCWD, filename, flags, parent, last,  in vfs_path_parent_lookup()
2620 	struct filename *filename;  in vfs_path_lookup()  local
2624 	filename = getname_kernel(name);  in vfs_path_lookup()
2626 	ret = filename_lookup(AT_FDCWD, filename, flags, path, &root);  in vfs_path_lookup()
2627 	putname(filename);  in vfs_path_lookup()
2882 	struct filename *filename = getname_flags(name, flags, empty);  in user_path_at_empty()  local
2883 	int ret = filename_lookup(dfd, filename, flags, path, NULL);  in user_path_at_empty()
2885 	putname(filename);  in user_path_at_empty()
3761 struct file *do_filp_open(int dfd, struct filename *pathname,  in do_filp_open()
3783 	struct filename *filename;  in do_file_open_root()  local
3789 	filename = getname_kernel(name);  in do_file_open_root()
3790 	if (IS_ERR(filename))  in do_file_open_root()
3791 		return ERR_CAST(filename);  in do_file_open_root()
3793 	set_nameidata(&nd, -1, filename, root);  in do_file_open_root()
3800 	putname(filename);  in do_file_open_root()
3804 static struct dentry *filename_create(int dfd, struct filename *name,  in filename_create()
3875 	struct filename *filename = getname_kernel(pathname);  in kern_path_create()  local
3876 	struct dentry *res = filename_create(dfd, filename, path, lookup_flags);  in kern_path_create()
3878 	putname(filename);  in kern_path_create()
3895 	struct filename *filename = getname(pathname);  in user_path_create()  local
3896 	struct dentry *res = filename_create(dfd, filename, path, lookup_flags);  in user_path_create()
3898 	putname(filename);  in user_path_create()
3968 static int do_mknodat(int dfd, struct filename *name, umode_t mode,  in do_mknodat()
4019 SYSCALL_DEFINE4(mknodat, int, dfd, const char __user *, filename, umode_t, mode,  in SYSCALL_DEFINE4()  argument
4022 	return do_mknodat(dfd, getname(filename), mode, dev);  in SYSCALL_DEFINE4()
4025 SYSCALL_DEFINE3(mknod, const char __user *, filename, umode_t, mode, unsigned, dev)  in SYSCALL_DEFINE3()  argument
4027 	return do_mknodat(AT_FDCWD, getname(filename), mode, dev);  in SYSCALL_DEFINE3()
4072 int do_mkdirat(int dfd, struct filename *name, umode_t mode)  in do_mkdirat()
4167 int do_rmdir(int dfd, struct filename *name)  in do_rmdir()
4308 int do_unlinkat(int dfd, struct filename *name)  in do_unlinkat()
4436 int do_symlinkat(struct filename *from, int newdfd, struct filename *to)  in do_symlinkat()
4581 int do_linkat(int olddfd, struct filename *old, int newdfd,  in do_linkat()
4582 	      struct filename *new, int flags)  in do_linkat()
4871 int do_renameat2(int olddfd, struct filename *from, int newdfd,  in do_renameat2()
4872 		 struct filename *to, unsigned int flags)  in do_renameat2()