79 	if (iname->len <= 0 || iname->len > lim)  in ext4_fname_encrypt()
82 	ciphertext_len = (iname->len < EXT4_CRYPTO_BLOCK_SIZE) ?  in ext4_fname_encrypt()
83 		EXT4_CRYPTO_BLOCK_SIZE : iname->len;  in ext4_fname_encrypt()
110 	memcpy(workbuf, iname->name, iname->len);  in ext4_fname_encrypt()
111 	if (iname->len < ciphertext_len)  in ext4_fname_encrypt()
112 		memset(workbuf + iname->len, 0, ciphertext_len - iname->len);  in ext4_fname_encrypt()
132 	oname->len = ciphertext_len;  in ext4_fname_encrypt()
157 	if (iname->len <= 0 || iname->len > lim)  in ext4_fname_decrypt()
161 	tmp_in[0].len = iname->len;  in ext4_fname_decrypt()
179 	sg_init_one(&src_sg, iname->name, iname->len);  in ext4_fname_decrypt()
180 	sg_init_one(&dst_sg, oname->name, oname->len);  in ext4_fname_decrypt()
181 	ablkcipher_request_set_crypt(req, &src_sg, &dst_sg, iname->len, iv);  in ext4_fname_decrypt()
195 	oname->len = strnlen(oname->name, iname->len);  in ext4_fname_decrypt()
196 	return oname->len;  in ext4_fname_decrypt()
208 static int digest_encode(const char *src, int len, char *dst)  in digest_encode()  argument
213 	while (i < len) {  in digest_encode()
228 static int digest_decode(const char *src, int len, char *dst)  in digest_decode()  argument
234 	while (i < len) {  in digest_decode()
285 	crypto_str->len = olen;  in ext4_fname_crypto_alloc_buffer()
320 	if (iname->len < 3) {  in _ext4_fname_disk_to_usr()
322 		if (iname->name[0] == '.' && iname->name[iname->len-1] == '.') {  in _ext4_fname_disk_to_usr()
324 			oname->name[iname->len-1] = '.';  in _ext4_fname_disk_to_usr()
325 			oname->len = iname->len;  in _ext4_fname_disk_to_usr()
326 			return oname->len;  in _ext4_fname_disk_to_usr()
329 	if (iname->len < EXT4_CRYPTO_BLOCK_SIZE) {  in _ext4_fname_disk_to_usr()
336 	if (iname->len <= EXT4_FNAME_CRYPTO_DIGEST_SIZE) {  in _ext4_fname_disk_to_usr()
337 		ret = digest_encode(iname->name, iname->len, oname->name);  in _ext4_fname_disk_to_usr()
338 		oname->len = ret;  in _ext4_fname_disk_to_usr()
346 	memcpy(buf + 8, iname->name + iname->len - 16, 16);  in _ext4_fname_disk_to_usr()
349 	oname->len = ret + 1;  in _ext4_fname_disk_to_usr()
359 				 .len = de->name_len };  in ext4_fname_disk_to_usr()
375 	if (iname->len < 3) {  in ext4_fname_usr_to_disk()
378 				iname->name[iname->len-1] == '.') {  in ext4_fname_usr_to_disk()
380 			oname->name[iname->len-1] = '.';  in ext4_fname_usr_to_disk()
381 			oname->len = iname->len;  in ext4_fname_usr_to_disk()
382 			return oname->len;  in ext4_fname_usr_to_disk()
406 	     ((iname->len == 1) ||  in ext4_fname_setup_filename()
407 	      ((iname->name[1] == '.') && (iname->len == 2))))) {  in ext4_fname_setup_filename()
409 		fname->disk_name.len = iname->len;  in ext4_fname_setup_filename()
417 		ret = ext4_fname_crypto_alloc_buffer(dir, iname->len,  in ext4_fname_setup_filename()
425 		fname->disk_name.len = fname->crypto_buf.len;  in ext4_fname_setup_filename()
436 	if ((bigname && (iname->len != 33)) ||  in ext4_fname_setup_filename()
437 	    (!bigname && (iname->len > 43)))  in ext4_fname_setup_filename()
443 	ret = digest_decode(iname->name + bigname, iname->len - bigname,  in ext4_fname_setup_filename()
449 	fname->crypto_buf.len = ret;  in ext4_fname_setup_filename()
455 		fname->disk_name.len = fname->crypto_buf.len;  in ext4_fname_setup_filename()