80 	if (iname->len <= 0 || iname->len > lim)  in ext4_fname_encrypt()
83 	ciphertext_len = (iname->len < EXT4_CRYPTO_BLOCK_SIZE) ?  in ext4_fname_encrypt()
84 		EXT4_CRYPTO_BLOCK_SIZE : iname->len;  in ext4_fname_encrypt()
111 	memcpy(workbuf, iname->name, iname->len);  in ext4_fname_encrypt()
112 	if (iname->len < ciphertext_len)  in ext4_fname_encrypt()
113 		memset(workbuf + iname->len, 0, ciphertext_len - iname->len);  in ext4_fname_encrypt()
134 	oname->len = ciphertext_len;  in ext4_fname_encrypt()
159 	if (iname->len <= 0 || iname->len > lim)  in ext4_fname_decrypt()
163 	tmp_in[0].len = iname->len;  in ext4_fname_decrypt()
181 	sg_init_one(&src_sg, iname->name, iname->len);  in ext4_fname_decrypt()
182 	sg_init_one(&dst_sg, oname->name, oname->len);  in ext4_fname_decrypt()
183 	ablkcipher_request_set_crypt(req, &src_sg, &dst_sg, iname->len, iv);  in ext4_fname_decrypt()
198 	oname->len = strnlen(oname->name, iname->len);  in ext4_fname_decrypt()
199 	return oname->len;  in ext4_fname_decrypt()
211 static int digest_encode(const char *src, int len, char *dst)  in digest_encode()  argument
216 	while (i < len) {  in digest_encode()
231 static int digest_decode(const char *src, int len, char *dst)  in digest_decode()  argument
237 	while (i < len) {  in digest_decode()
288 	crypto_str->len = olen;  in ext4_fname_crypto_alloc_buffer()
323 	if (iname->len < 3) {  in _ext4_fname_disk_to_usr()
325 		if (iname->name[0] == '.' && iname->name[iname->len-1] == '.') {  in _ext4_fname_disk_to_usr()
327 			oname->name[iname->len-1] = '.';  in _ext4_fname_disk_to_usr()
328 			oname->len = iname->len;  in _ext4_fname_disk_to_usr()
329 			return oname->len;  in _ext4_fname_disk_to_usr()
335 	if (iname->len <= EXT4_FNAME_CRYPTO_DIGEST_SIZE) {  in _ext4_fname_disk_to_usr()
336 		ret = digest_encode(iname->name, iname->len, oname->name);  in _ext4_fname_disk_to_usr()
337 		oname->len = ret;  in _ext4_fname_disk_to_usr()
345 	memcpy(buf + 8, iname->name + iname->len - 16, 16);  in _ext4_fname_disk_to_usr()
348 	oname->len = ret + 1;  in _ext4_fname_disk_to_usr()
358 				 .len = de->name_len };  in ext4_fname_disk_to_usr()
374 	if (iname->len < 3) {  in ext4_fname_usr_to_disk()
377 				iname->name[iname->len-1] == '.') {  in ext4_fname_usr_to_disk()
379 			oname->name[iname->len-1] = '.';  in ext4_fname_usr_to_disk()
380 			oname->len = iname->len;  in ext4_fname_usr_to_disk()
381 			return oname->len;  in ext4_fname_usr_to_disk()
405 	     ((iname->len == 1) ||  in ext4_fname_setup_filename()
406 	      ((iname->name[1] == '.') && (iname->len == 2))))) {  in ext4_fname_setup_filename()
408 		fname->disk_name.len = iname->len;  in ext4_fname_setup_filename()
416 		ret = ext4_fname_crypto_alloc_buffer(dir, iname->len,  in ext4_fname_setup_filename()
424 		fname->disk_name.len = fname->crypto_buf.len;  in ext4_fname_setup_filename()
435 	if ((bigname && (iname->len != 33)) ||  in ext4_fname_setup_filename()
436 	    (!bigname && (iname->len > 43)))  in ext4_fname_setup_filename()
442 	ret = digest_decode(iname->name + bigname, iname->len - bigname,  in ext4_fname_setup_filename()
448 	fname->crypto_buf.len = ret;  in ext4_fname_setup_filename()
454 		fname->disk_name.len = fname->crypto_buf.len;  in ext4_fname_setup_filename()