20 	if (str->len == 1 && str->name[0] == '.')  in fscrypt_is_dot_dotdot()
23 	if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.')  in fscrypt_is_dot_dotdot()
52 	if (WARN_ON(olen < iname->len))  in fname_encrypt()
54 	memcpy(out, iname->name, iname->len);  in fname_encrypt()
55 	memset(out + iname->len, 0, olen - iname->len);  in fname_encrypt()
112 	sg_init_one(&src_sg, iname->name, iname->len);  in fname_decrypt()
113 	sg_init_one(&dst_sg, oname->name, oname->len);  in fname_decrypt()
114 	skcipher_request_set_crypt(req, &src_sg, &dst_sg, iname->len, &iv);  in fname_decrypt()
122 	oname->len = strnlen(oname->name, iname->len);  in fname_decrypt()
139 static int base64_encode(const u8 *src, int len, char *dst)  in base64_encode()  argument
144 	for (i = 0; i < len; i++) {  in base64_encode()
158 static int base64_decode(const char *src, int len, u8 *dst)  in base64_decode()  argument
164 	for (i = 0; i < len; i++) {  in base64_decode()
219 	crypto_str->len = max_presented_len;  in fscrypt_fname_alloc_buffer()
260 		oname->name[iname->len - 1] = '.';  in fscrypt_fname_disk_to_usr()
261 		oname->len = iname->len;  in fscrypt_fname_disk_to_usr()
265 	if (iname->len < FS_CRYPTO_BLOCK_SIZE)  in fscrypt_fname_disk_to_usr()
271 	if (iname->len <= FSCRYPT_FNAME_MAX_UNDIGESTED_SIZE) {  in fscrypt_fname_disk_to_usr()
272 		oname->len = base64_encode(iname->name, iname->len,  in fscrypt_fname_disk_to_usr()
284 	       FSCRYPT_FNAME_DIGEST(iname->name, iname->len),  in fscrypt_fname_disk_to_usr()
287 	oname->len = 1 + base64_encode((const u8 *)&digested_name,  in fscrypt_fname_disk_to_usr()
328 		fname->disk_name.len = iname->len;  in fscrypt_setup_filename()
336 		if (!fscrypt_fname_encrypted_size(dir, iname->len,  in fscrypt_setup_filename()
338 						  &fname->crypto_buf.len))  in fscrypt_setup_filename()
340 		fname->crypto_buf.name = kmalloc(fname->crypto_buf.len,  in fscrypt_setup_filename()
346 				    fname->crypto_buf.len);  in fscrypt_setup_filename()
350 		fname->disk_name.len = fname->crypto_buf.len;  in fscrypt_setup_filename()
362 		if (iname->len !=  in fscrypt_setup_filename()
367 		if (iname->len >  in fscrypt_setup_filename()
380 	ret = base64_decode(iname->name + digested, iname->len - digested,  in fscrypt_setup_filename()
386 	fname->crypto_buf.len = ret;  in fscrypt_setup_filename()
394 		fname->disk_name.len = fname->crypto_buf.len;  in fscrypt_setup_filename()