1 /* 2 * Copyright (C) 2009 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef _MINELF_RETOUCH 18 #define _MINELF_RETOUCH 19 20 #include <stdbool.h> 21 #include <sys/types.h> 22 23 typedef struct { 24 char tag[8]; /* "RETOUCH ", not zero-terminated */ 25 uint32_t blob_size; /* in bytes, located right before this struct */ 26 } retouch_info_t __attribute__((packed)); 27 28 // Retouch a file. Use CACHED_SOURCE_TEMP to store a copy. 29 bool retouch_one_library(const char *binary_name, 30 const char *binary_sha1, 31 int32_t retouch_offset, 32 int32_t *retouch_offset_override); 33 34 #define RETOUCH_DONT_MASK 0 35 #define RETOUCH_DO_MASK 1 36 37 #define RETOUCH_DATA_ERROR 0 // This is bad. Should not happen. 38 #define RETOUCH_DATA_MATCHED 1 // Up to an uniform random offset. 39 #define RETOUCH_DATA_MISMATCHED 2 // Partially randomized, or total mess. 40 #define RETOUCH_DATA_NOTAPPLICABLE 3 // Not retouched. Only when inferring. 41 42 // Mask retouching in-memory. Used before apply_patch[_check]. 43 // Also used to determine status of retouching after a crash. 44 // 45 // If desired_offset is not NULL, then apply retouching instead, 46 // and return that in retouch_offset. 47 int retouch_mask_data(uint8_t *binary_object, 48 int32_t binary_size, 49 int32_t *desired_offset, 50 int32_t *retouch_offset); 51 #endif 52
