Green Sky
8eb4892b49
6d634674a9 cleanup: Remove old type-ordered event getters. d1d48d1dfc feat: add ngc events 994ffecc6b refactor: Make event dispatch ordered by receive time. 812f931d5f fix: Make sure there's enough space for CONSUME1 in fuzzers. 50f1b30fa9 test: Add fuzz tests to the coverage run. df76f5cf47 chore: Move from gcov to llvm source-based coverage. 072e3beb3f fix: issues with packet broadcast error reporting 6b6718e4d2 cleanup: Make group packet entry creation less error-prone 5b9c420ce1 refactor: packet broadcast functions now return errors af4cb31028 refactor: Use `operator==` for equality tests of `Node_format`. 9592d590cf refactor(test): Slightly nicer C++ interface to tox Random. c66e10fb7a refactor: Minor refactoring of get_close_nodes functions. ebc9643862 fix: don't pass garbage data buffer to packet send functions 32b68cffca cleanup: Some more test cleanups, removing overly smart code. 0426624dcb refactor: Assign malloc return to a local variable first. afc38f2458 test: Add more unit tests for `add_to_list`. 05ce5c1ab9 test: Add "infer" CI check to github, remove from circle. REVERT: 8f0d505f9a feat: add ngc events REVERT: 9b8216e70c refactor: Make event dispatch ordered by receive time. git-subtree-dir: external/toxcore/c-toxcore git-subtree-split: 6d634674a929edb0ab70689dcbcb195b3547be13
95 lines
2.9 KiB
C++
95 lines
2.9 KiB
C++
#include "forwarding.h"
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#include <cassert>
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#include <cstring>
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#include <memory>
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#include <optional>
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#include "../testing/fuzzing/fuzz_support.h"
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#include "../testing/fuzzing/fuzz_tox.h"
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namespace {
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std::optional<std::tuple<IP_Port, IP_Port, const uint8_t *, size_t>> prepare(Fuzz_Data &input)
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{
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CONSUME_OR_RETURN_VAL(const uint8_t *ipp_packed, input, SIZE_IP_PORT, std::nullopt);
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IP_Port ipp;
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unpack_ip_port(&ipp, ipp_packed, SIZE_IP6, true);
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CONSUME_OR_RETURN_VAL(const uint8_t *forwarder_packed, input, SIZE_IP_PORT, std::nullopt);
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IP_Port forwarder;
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unpack_ip_port(&forwarder, forwarder_packed, SIZE_IP6, true);
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// 2 bytes: size of the request
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CONSUME_OR_RETURN_VAL(const uint8_t *data_size_bytes, input, sizeof(uint16_t), std::nullopt);
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uint16_t data_size;
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std::memcpy(&data_size, data_size_bytes, sizeof(uint16_t));
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// data bytes (max 64K)
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CONSUME_OR_RETURN_VAL(const uint8_t *data, input, data_size, std::nullopt);
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return {{ipp, forwarder, data, data_size}};
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}
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void TestSendForwardRequest(Fuzz_Data &input)
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{
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CONSUME1_OR_RETURN(const uint16_t, chain_length, input);
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const uint16_t chain_keys_size = chain_length * CRYPTO_PUBLIC_KEY_SIZE;
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CONSUME_OR_RETURN(const uint8_t *chain_keys, input, chain_keys_size);
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auto prep = prepare(input);
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if (!prep.has_value()) {
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return;
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}
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auto [ipp, forwarder, data, data_size] = prep.value();
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// rest of the fuzz data is input for malloc and network
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Fuzz_System sys(input);
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Ptr<Logger> logger(logger_new(), logger_kill);
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Ptr<Networking_Core> net(new_networking_ex(logger.get(), sys.mem.get(), sys.ns.get(), &ipp.ip,
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ipp.port, ipp.port + 100, nullptr),
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kill_networking);
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if (net == nullptr) {
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return;
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}
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send_forward_request(net.get(), &forwarder, chain_keys, chain_length, data, data_size);
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}
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void TestForwardReply(Fuzz_Data &input)
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{
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CONSUME1_OR_RETURN(const uint16_t, sendback_length, input);
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CONSUME_OR_RETURN(const uint8_t *sendback, input, sendback_length);
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auto prep = prepare(input);
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if (!prep.has_value()) {
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return;
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}
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auto [ipp, forwarder, data, data_size] = prep.value();
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// rest of the fuzz data is input for malloc and network
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Fuzz_System sys(input);
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Ptr<Logger> logger(logger_new(), logger_kill);
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Ptr<Networking_Core> net(new_networking_ex(logger.get(), sys.mem.get(), sys.ns.get(), &ipp.ip,
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ipp.port, ipp.port + 100, nullptr),
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kill_networking);
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if (net == nullptr) {
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return;
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}
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forward_reply(net.get(), &forwarder, sendback, sendback_length, data, data_size);
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}
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} // namespace
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size);
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
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{
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fuzz_select_target(data, size, TestSendForwardRequest, TestForwardReply);
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return 0;
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}
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