54 xattr_resolve_name(struct inode *inode, const char **name)  in xattr_resolve_name()  argument
67 		n = strcmp_prefix(*name, xattr_prefix(handler));  in xattr_resolve_name()
74 			*name = n;  in xattr_resolve_name()
86 xattr_permission(struct inode *inode, const char *name, int mask)  in xattr_permission()  argument
108 	if (!strncmp(name, XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN) ||  in xattr_permission()
109 	    !strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN))  in xattr_permission()
115 	if (!strncmp(name, XATTR_TRUSTED_PREFIX, XATTR_TRUSTED_PREFIX_LEN)) {  in xattr_permission()
126 	if (!strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN)) {  in xattr_permission()
138 __vfs_setxattr(struct dentry *dentry, struct inode *inode, const char *name,  in __vfs_setxattr()  argument
143 	handler = xattr_resolve_name(inode, &name);  in __vfs_setxattr()
150 	return handler->set(handler, dentry, inode, name, value, size, flags);  in __vfs_setxattr()
170 int __vfs_setxattr_noperm(struct dentry *dentry, const char *name,  in __vfs_setxattr_noperm()  argument
175 	int issec = !strncmp(name, XATTR_SECURITY_PREFIX,  in __vfs_setxattr_noperm()
181 		error = __vfs_setxattr(dentry, inode, name, value, size, flags);  in __vfs_setxattr_noperm()
184 			security_inode_post_setxattr(dentry, name, value,  in __vfs_setxattr_noperm()
195 			const char *suffix = name + XATTR_SECURITY_PREFIX_LEN;  in __vfs_setxattr_noperm()
209 vfs_setxattr(struct dentry *dentry, const char *name, const void *value,  in vfs_setxattr()  argument
215 	error = xattr_permission(inode, name, MAY_WRITE);  in vfs_setxattr()
220 	error = security_inode_setxattr(dentry, name, value, size, flags);  in vfs_setxattr()
224 	error = __vfs_setxattr_noperm(dentry, name, value, size, flags);  in vfs_setxattr()
233 xattr_getsecurity(struct inode *inode, const char *name, void *value,  in xattr_getsecurity()  argument
240 		len = security_inode_getsecurity(inode, name, &buffer, false);  in xattr_getsecurity()
244 	len = security_inode_getsecurity(inode, name, &buffer, true);  in xattr_getsecurity()
267 vfs_getxattr_alloc(struct dentry *dentry, const char *name, char **xattr_value,  in vfs_getxattr_alloc()  argument
275 	error = xattr_permission(inode, name, MAY_READ);  in vfs_getxattr_alloc()
279 	handler = xattr_resolve_name(inode, &name);  in vfs_getxattr_alloc()
284 	error = handler->get(handler, dentry, inode, name, NULL, 0, 0);  in vfs_getxattr_alloc()
295 	error = handler->get(handler, dentry, inode, name, value, error, 0);  in vfs_getxattr_alloc()
301 __vfs_getxattr(struct dentry *dentry, struct inode *inode, const char *name,  in __vfs_getxattr()  argument
309 	error = xattr_permission(inode, name, MAY_READ);  in __vfs_getxattr()
313 	error = security_inode_getxattr(dentry, name);  in __vfs_getxattr()
317 	if (!strncmp(name, XATTR_SECURITY_PREFIX,  in __vfs_getxattr()
319 		const char *suffix = name + XATTR_SECURITY_PREFIX_LEN;  in __vfs_getxattr()
330 	handler = xattr_resolve_name(inode, &name);  in __vfs_getxattr()
335 	return handler->get(handler, dentry, inode, name, value, size, flags);  in __vfs_getxattr()
340 vfs_getxattr(struct dentry *dentry, const char *name, void *value, size_t size)  in vfs_getxattr()  argument
342 	return __vfs_getxattr(dentry, dentry->d_inode, name, value, size, 0);  in vfs_getxattr()
367 __vfs_removexattr(struct dentry *dentry, const char *name)  in __vfs_removexattr()  argument
372 	handler = xattr_resolve_name(inode, &name);  in __vfs_removexattr()
377 	return handler->set(handler, dentry, inode, name, NULL, 0, XATTR_REPLACE);  in __vfs_removexattr()
382 vfs_removexattr(struct dentry *dentry, const char *name)  in vfs_removexattr()  argument
387 	error = xattr_permission(inode, name, MAY_WRITE);  in vfs_removexattr()
392 	error = security_inode_removexattr(dentry, name);  in vfs_removexattr()
396 	error = __vfs_removexattr(dentry, name);  in vfs_removexattr()
400 		evm_inode_post_removexattr(dentry, name);  in vfs_removexattr()
414 setxattr(struct dentry *d, const char __user *name, const void __user *value,  in setxattr()  argument
424 	error = strncpy_from_user(kname, name, sizeof(kname));  in setxattr()
459 			 const char __user *name, const void __user *value,  in path_setxattr()  argument
470 		error = setxattr(path.dentry, name, value, size, flags);  in path_setxattr()
482 		const char __user *, name, const void __user *, value,  in SYSCALL_DEFINE5()
485 	return path_setxattr(pathname, name, value, size, flags, LOOKUP_FOLLOW);  in SYSCALL_DEFINE5()
489 		const char __user *, name, const void __user *, value,  in SYSCALL_DEFINE5()
492 	return path_setxattr(pathname, name, value, size, flags, 0);  in SYSCALL_DEFINE5()
495 SYSCALL_DEFINE5(fsetxattr, int, fd, const char __user *, name,  in SYSCALL_DEFINE5()  argument
506 		error = setxattr(f.file->f_path.dentry, name, value, size, flags);  in SYSCALL_DEFINE5()
517 getxattr(struct dentry *d, const char __user *name, void __user *value,  in getxattr()  argument
524 	error = strncpy_from_user(kname, name, sizeof(kname));  in getxattr()
557 			     const char __user *name, void __user *value,  in path_getxattr()  argument
566 	error = getxattr(path.dentry, name, value, size);  in path_getxattr()
576 		const char __user *, name, void __user *, value, size_t, size)  in SYSCALL_DEFINE4()
578 	return path_getxattr(pathname, name, value, size, LOOKUP_FOLLOW);  in SYSCALL_DEFINE4()
582 		const char __user *, name, void __user *, value, size_t, size)  in SYSCALL_DEFINE4()
584 	return path_getxattr(pathname, name, value, size, 0);  in SYSCALL_DEFINE4()
587 SYSCALL_DEFINE4(fgetxattr, int, fd, const char __user *, name,  in SYSCALL_DEFINE4()  argument
596 	error = getxattr(f.file->f_path.dentry, name, value, size);  in SYSCALL_DEFINE4()
680 removexattr(struct dentry *d, const char __user *name)  in removexattr()  argument
685 	error = strncpy_from_user(kname, name, sizeof(kname));  in removexattr()
695 			    const char __user *name, unsigned int lookup_flags)  in path_removexattr()  argument
705 		error = removexattr(path.dentry, name);  in path_removexattr()
717 		const char __user *, name)  in SYSCALL_DEFINE2()
719 	return path_removexattr(pathname, name, LOOKUP_FOLLOW);  in SYSCALL_DEFINE2()
723 		const char __user *, name)  in SYSCALL_DEFINE2()
725 	return path_removexattr(pathname, name, 0);  in SYSCALL_DEFINE2()
728 SYSCALL_DEFINE2(fremovexattr, int, fd, const char __user *, name)  in SYSCALL_DEFINE2()  argument
738 		error = removexattr(f.file->f_path.dentry, name);  in SYSCALL_DEFINE2()
757 			if (!handler->name ||  in generic_listxattr()
760 			size += strlen(handler->name) + 1;  in generic_listxattr()
767 			if (!handler->name ||  in generic_listxattr()
770 			len = strlen(handler->name);  in generic_listxattr()
773 			memcpy(buf, handler->name, len + 1);  in generic_listxattr()
799 			    const char *name)  in xattr_full_name()  argument
803 	return name - prefix_len;  in xattr_full_name()
832 int simple_xattr_get(struct simple_xattrs *xattrs, const char *name,  in simple_xattr_get()  argument
840 		if (strcmp(name, xattr->name))  in simple_xattr_get()
870 int simple_xattr_set(struct simple_xattrs *xattrs, const char *name,  in simple_xattr_set()  argument
883 		new_xattr->name = kstrdup(name, GFP_KERNEL);  in simple_xattr_set()
884 		if (!new_xattr->name) {  in simple_xattr_set()
892 		if (!strcmp(name, xattr->name)) {  in simple_xattr_set()
914 		kfree(xattr->name);  in simple_xattr_set()
921 static bool xattr_is_trusted(const char *name)  in xattr_is_trusted()  argument
923 	return !strncmp(name, XATTR_TRUSTED_PREFIX, XATTR_TRUSTED_PREFIX_LEN);  in xattr_is_trusted()
927 			  const char *name)  in xattr_list_one()  argument
929 	size_t len = strlen(name) + 1;  in xattr_list_one()
933 		memcpy(*buffer, name, len);  in xattr_list_one()
971 		if (!trusted && xattr_is_trusted(xattr->name))  in simple_xattr_list()
974 		err = xattr_list_one(&buffer, &remaining_size, xattr->name);  in simple_xattr_list()