File
Blob: src/workerd/api/fuzzilli.h
| 1 | #pragma once |
| 2 | |
| 3 | #ifdef __linux__ |
| 4 | #include <workerd/jsg/jsg.h> |
| 5 | |
| 6 | #include <assert.h> |
| 7 | #include <fcntl.h> |
| 8 | #include <stdio.h> |
| 9 | #include <stdlib.h> |
| 10 | #include <sys/mman.h> |
| 11 | #include <sys/stat.h> |
| 12 | #include <sys/wait.h> |
| 13 | #include <unistd.h> |
| 14 | |
| 15 | #include <cstdint> |
| 16 | |
| 17 | #define SHM_SIZE 0x200000 |
| 18 | #define MAX_EDGES ((SHM_SIZE - 4) * 8) |
| 19 | |
| 20 | struct shmem_data { |
| 21 | uint32_t num_edges; |
| 22 | unsigned char edges[]; |
| 23 | }; |
| 24 | |
| 25 | // NOLINTBEGIN(edgeworker-mutable-globals) |
| 26 | extern struct shmem_data* __shmem; |
| 27 | extern uint32_t* __edges_start; |
| 28 | extern uint32_t* __edges_stop; |
| 29 | // NOLINTEND(edgeworker-mutable-globals) |
| 30 | |
| 31 | void __sanitizer_cov_reset_edgeguards(); |
| 32 | |
| 33 | //Fuzzilli sockets for communication |
| 34 | #define REPRL_CRFD 100 |
| 35 | #define REPRL_CWFD 101 |
| 36 | #define REPRL_DRFD 102 |
| 37 | #define REPRL_DWFD 103 |
| 38 | #define USE(...) \ |
| 39 | do { \ |
| 40 | (void)(__VA_ARGS__); \ |
| 41 | } while (false) |
| 42 | |
| 43 | #define CHECK(condition) \ |
| 44 | do { \ |
| 45 | if (!(condition)) { \ |
| 46 | fprintf(stderr, "Error: %s:%d: condition failed: %s\n", __FILE__, __LINE__, #condition); \ |
| 47 | exit(EXIT_FAILURE); \ |
| 48 | } \ |
| 49 | } while (0) |
| 50 | |
| 51 | void perform_wild_write(); |
| 52 | void sanitizer_cov_reset_edgeguards(); |
| 53 | uint32_t sanitizer_cov_count_discovered_edges(); |
| 54 | void sanitizer_cov_prepare_for_hardware_sandbox(); |
| 55 | void cov_init_builtins_edges(uint32_t num_edges); |
| 56 | |
| 57 | void fuzzilli_handler(workerd::jsg::Lock& js, workerd::jsg::Arguments<workerd::jsg::Value>& args); |
| 58 | |
| 59 | // TODO: this would only work with the profiler like in d8 |
| 60 | // void cov_update_builtins_basic_block_coverage(const std::vector<bool>& cov_map); |
| 61 | // https://github.com/v8/v8/blob/a63b49495eac716c1a4ccbef57e2e1c7e98f27e4/src/d8/d8.cc#L7284-L7286 |
| 62 | // |
| 63 | #endif |