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b22ce6848f
This also also combines the old TransportLayerAnalyzer class into SessionAdapter, and removes the old class. This requires naming changes in a few places but no functionality changes.
79 lines
1.9 KiB
C++
79 lines
1.9 KiB
C++
#include <binpac.h>
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#include "zeek/RunState.h"
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#include "zeek/Conn.h"
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#include "zeek/session/Manager.h"
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#include "zeek/analyzer/Analyzer.h"
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#include "zeek/analyzer/Manager.h"
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#include "zeek/analyzer/protocol/pia/PIA.h"
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#include "zeek/analyzer/protocol/tcp/TCP.h"
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#include "zeek/fuzzers/FuzzBuffer.h"
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#include "zeek/fuzzers/fuzzer-setup.h"
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static constexpr auto ZEEK_FUZZ_ANALYZER = "pop3";
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static zeek::Connection* add_connection()
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{
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static constexpr double network_time_start = 1439471031;
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zeek::run_state::detail::update_network_time(network_time_start);
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zeek::Packet p;
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zeek::ConnTuple conn_id;
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conn_id.src_addr = zeek::IPAddr("1.2.3.4");
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conn_id.dst_addr = zeek::IPAddr("5.6.7.8");
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conn_id.src_port = htons(23132);
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conn_id.dst_port = htons(80);
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conn_id.is_one_way = false;
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conn_id.proto = TRANSPORT_TCP;
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zeek::detail::ConnKey key(conn_id);
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zeek::Connection* conn = new zeek::Connection(key, network_time_start,
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&conn_id, 1, &p);
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conn->SetTransport(TRANSPORT_TCP);
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zeek::session_mgr->Insert(conn);
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return conn;
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}
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static zeek::analyzer::Analyzer* add_analyzer(zeek::Connection* conn)
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{
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auto* tcp = new zeek::analyzer::tcp::TCP_Analyzer(conn);
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auto* pia = new zeek::analyzer::pia::PIA_TCP(conn);
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auto a = zeek::analyzer_mgr->InstantiateAnalyzer(ZEEK_FUZZ_ANALYZER, conn);
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tcp->AddChildAnalyzer(a);
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tcp->AddChildAnalyzer(pia->AsAnalyzer());
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conn->SetSessionAdapter(tcp, pia);
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return a;
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}
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
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{
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zeek::detail::FuzzBuffer fb{data, size};
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if ( ! fb.Valid() )
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return 0;
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auto conn = add_connection();
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auto a = add_analyzer(conn);
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for ( ; ; )
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{
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auto chunk = fb.Next();
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if ( ! chunk )
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break;
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try
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{
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a->DeliverStream(chunk->size, chunk->data.get(), chunk->is_orig);
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}
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catch ( const binpac::Exception& e )
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{
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}
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chunk = {};
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zeek::event_mgr.Drain();
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}
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zeek::detail::fuzzer_cleanup_one_input();
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return 0;
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}
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