Mercurial > dropbear
annotate fuzz.h @ 1717:295377ecbf49
Add DEVELOPING.md
| author | Matt Johnston <matt@ucc.asn.au> |
|---|---|
| date | Mon, 15 Jun 2020 22:30:28 +0800 |
| parents | 35af85194268 |
| children | dfbe947bdf0d |
| rev | line source |
|---|---|
| 1348 | 1 #ifndef DROPBEAR_FUZZ_H |
| 2 #define DROPBEAR_FUZZ_H | |
| 3 | |
| 1357 | 4 #include "config.h" |
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Fix to be able to compile normal(ish) binaries with --enable-fuzz
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5 |
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- #if not #ifdef for DROPBEAR_FUZZ
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6 #if DROPBEAR_FUZZ |
| 1357 | 7 |
| 1348 | 8 #include "includes.h" |
| 9 #include "buffer.h" | |
| 1357 | 10 #include "algo.h" |
| 11 #include "fuzz-wrapfd.h" | |
| 1348 | 12 |
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13 // once per process |
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14 void fuzz_common_setup(void); |
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15 void fuzz_svr_setup(void); |
| 1348 | 16 |
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17 // must be called once per fuzz iteration. |
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18 // returns DROPBEAR_SUCCESS or DROPBEAR_FAILURE |
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19 int fuzz_set_input(const uint8_t *Data, size_t Size); |
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20 |
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21 int fuzz_run_preauth(const uint8_t *Data, size_t Size, int skip_kexmaths); |
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Add kexdh and kexecdh fuzzers
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22 const void* fuzz_get_algo(const algo_type *algos, const char* name); |
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23 |
| 1369 | 24 // fuzzer functions that intrude into general code |
| 1357 | 25 void fuzz_kex_fakealgos(void); |
| 1369 | 26 int fuzz_checkpubkey_line(buffer* line, int line_num, char* filename, |
| 27 const char* algo, unsigned int algolen, | |
| 28 const unsigned char* keyblob, unsigned int keybloblen); | |
| 29 extern const char * const * fuzz_signkey_names; | |
| 30 void fuzz_seed(void); | |
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Disable setnonblocking(), get_socket_address(), set_sock_priority()
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31 void fuzz_get_socket_address(int fd, char **local_host, char **local_port, |
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32 char **remote_host, char **remote_port, int host_lookup); |
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33 void fuzz_fake_send_kexdh_reply(void); |
| 1357 | 34 |
| 35 // fake IO wrappers | |
| 36 #ifndef FUZZ_SKIP_WRAP | |
| 37 #define select(nfds, readfds, writefds, exceptfds, timeout) \ | |
| 38 wrapfd_select(nfds, readfds, writefds, exceptfds, timeout) | |
| 39 #define write(fd, buf, count) wrapfd_write(fd, buf, count) | |
| 40 #define read(fd, buf, count) wrapfd_read(fd, buf, count) | |
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41 #define close(fd) wrapfd_close(fd) |
| 1357 | 42 #endif // FUZZ_SKIP_WRAP |
| 43 | |
| 1348 | 44 struct dropbear_fuzz_options { |
| 45 int fuzzing; | |
| 46 | |
| 47 // fuzzing input | |
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48 buffer *input; |
| 1357 | 49 struct dropbear_cipher recv_cipher; |
| 50 struct dropbear_hash recv_mac; | |
| 51 int wrapfds; | |
| 1348 | 52 |
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53 // whether to skip slow bignum maths |
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54 int skip_kexmaths; |
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55 |
| 1348 | 56 // dropbear_exit() jumps back |
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Add a flag whether to longjmp, missed that last commit
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57 int do_jmp; |
| 1348 | 58 sigjmp_buf jmp; |
| 59 | |
| 60 uid_t pw_uid; | |
| 61 gid_t pw_gid; | |
| 62 char* pw_name; | |
| 63 char* pw_dir; | |
| 64 char* pw_shell; | |
| 65 char* pw_passwd; | |
| 66 }; | |
| 67 | |
| 68 extern struct dropbear_fuzz_options fuzz; | |
| 69 | |
| 1357 | 70 #endif // DROPBEAR_FUZZ |
| 1348 | 71 |
| 72 #endif /* DROPBEAR_FUZZ_H */ |