Marco C. f7f8dff6cd
Add Intel PT tracing support (#2471)
* WIP: IntelPT qemu systemmode

* use perf-event-open-sys instead of bindgen

* intelPT Add enable and disable tracing, add test

* Use static_assertions crate

* Fix volatiles, finish test

* Add Intel PT availability check

* Use LibAFL errors in Result

* Improve filtering

* Add KVM pt_mode check

* move static_assertions use

* Check for perf_event_open support

* Add (empty) IntelPT module

* Add IntelPTModule POC

* partial ideas to implement intel pt

* forgot smth

* trace decoding draft

* add libipt decoder

* use cpuid instead of reading /proc/cpuinfo

* investigating nondeterministic behaviour

* intel_pt module add thread creation hook

* Fully identify deps versions

Cargo docs: Although it looks like a specific version of the crate, it actually specifies a range of versions and allows SemVer compatible updates

* Move mem image to module, output to file for debug

* fixup! Use static_assertions crate

* Exclude host kernel from traces

* Bump libipt-rs

* Callback to get memory as an alterantive to image

* WIP Add bootloader fuzzer example

* Split availability check: add availability_with_qemu

* Move IntelPT to observer

* Improve test docs

* Clippy happy now

* Taplo happy now

* Add IntelPTObserver boilerplate

* Hook instead of Observer

* Clippy & Taplo

* Add psb_freq setting

* Extremely bad and dirty babyfuzzer stealing

* Use thread local cell instead of mutex

* Try a trace diff based naive feedback

* fix perf aux buffer wrap handling

* Use f64 for feedback score

* Fix clippy for cargo test

* Add config format tests

* WIP intelpt babyfuzzer with fork

* Fix not wrapped tail offset in split buffer

* Baby PT with raw traces diff working

* Cache nr_filters

* Use Lazy_lock for perf_type

* Add baby_fuzzer_intel_pt

* restore baby fuzzer

* baby_fuzzer with block decoder

* instruction decoder instead of block

* Fix after upstream merge

* OwnedRefMut instead of Cow

* Read mem directly instead of going through files

* Fix cache lifetime and tail update

* clippy

* Taplo

* Compile caps only on linux

* clippy

* Fail compilation on unsupported OSes

* Add baby_fuzzer_intel_pt to CI

* Cleanup

* Move intel pt + linux check

* fix baby pt

* rollback forkexecutor

* Remove unused dep

* Cleanup

* Lints

* Compute an edge id instead of using only block ip

* Binary only intelPT POC

* put linux specific code behind target_os=linux

* Clippy & Taplo

* fix CI

* Disable relocation

* No unwrap in decode

* No expect in decode

* Better logging, smaller aux buffer

* add IntelPTBuilder

* some lints

* Add exclude_hv config

* Per CPU tracing and inheritance

* Parametrize buffer size

* Try not to break commandExecutor API pt.1

* Try not to break commandExecutor API pt.2

* Try not to break commandExecutor API pt.3

* fix baby PT

* Support on_crash & on_timeout callbacks for libafl_qemu modules (#2620)

* support (unsafe) on_crash / on_timeout callbacks for modules

* use libc types in bindgen

* Move common code to bolts

* Cleanup

* Revert changes to backtrace_baby_fuzzers/command_executor

* Move intel_pt in one file

* Use workspace deps

* add nr_addr_filter fallback

* Cleaning

* Improve decode

* Clippy

* Improve errors and docs

* Impl from<PtError> for libafl::Error

* Merge hooks

* Docs

* Clean command executor

* fix baby PT

* fix baby PT warnings

* decoder fills the map with no vec alloc

* WIP command executor intel PT

* filter_map() instead of filter().map()

* fix docs

* fix windows?

* Baby lints

* Small cleanings

* Use personality to disable ASLR at runtime

* Fix nix dep

* Use prc-maps in babyfuzzer

* working ET_DYN elf

* Cleanup Cargo.toml

* Clean command executor

* introduce PtraceCommandConfigurator

* Fix clippy & taplo

* input via stdin

* libipt as workspace dep

* Check kernel version

* support Arg input location

* Reorder stuff

* File input

* timeout support for PtraceExec

* Lints

* Move out method not needing self form IntelPT

* unimplemented

* Lints

* Move intel_pt_baby_fuzzer

* Move intel_pt_command_executor

* Document the need for smp_rmb

* Better comment

* Readme and Makefile.toml instead of build.rs

* Move out from libafl_bolts to libafl_intelpt

* Fix hooks

* (Almost) fix intel_pt command exec

* fix intel_pt command exec debug

* Fix baby_fuzzer

* &raw over addr_of!

* cfg(target_os = "linux")

* bolts Cargo.toml leftover

* minimum wage README.md

* extract join_split_trace from decode

* extract decode_block from decode

* add 1 to `previous_block_ip` to avoid that all the recursive basic blocks map to 0

* More generic hook

* fix windows

* Update CI, fmt

* No bitbybit

* Fix docker?

* Fix Apple silicon?

* Use old libipt from crates.io

---------

Co-authored-by: Romain Malmain <romain.malmain@pm.me>
Co-authored-by: Dominik Maier <domenukk@gmail.com>
2024-11-12 22:34:46 -03:00

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# Intel Processor Trace (PT) low level code
This module is a wrapper around the IntelPT kernel driver, exposing functionalities specifically crafted for libafl.
At the moment only linux hosts are supported.