2 Commits

Author	SHA1	Message	Date
M. Mert Yıldıran	cf91f3dab4	Fix Go crypto/tls eBPF tracer on ARM64 (#1162) ... * Handle the Go `ABIInternal` differences on ARM64 * Log the Capstone version, arch and mode * Upgrade Capstone from `4.0.2` to `5.0-rc2` to have ARM64 instructions fix * Use the correct register on ARM64 for reading buffer length * Fix the addresses on ARM64 * #run_acceptance_tests * Update `x86.o` * Update `arm64.o` * #run_acceptance_tests	2022-06-26 14:11:04 +03:00
M. Mert Yıldıran	2ad4838cf5	Add Go crypto/tls eBPF tracer for TLS connections (#1120) ... * Run `go generate tls_tapper.go` * Add `golang_uprobes.c` * Add Golang hooks and offsets * Add `golangConnection` struct and implement `pollGolangReadWrite` method * Upgrade `github.com/cilium/ebpf` version to `v0.8.1` * Fix the linter error * Move map related stuff to `maps.h` and run `go generate tls_tapper.go` * Remove unused parameter * Add an environment variable to test Golang locally * Replace `Libssl` occurrences with `Ssllib` for consistency * Fix exe path finding * Temporarily disable OpenSSL * Fix the mixed offsets and dissection preparation * Change the read symbol from `net/http.(*persistConn).Read` to `crypto/tls.(*Conn).Read` * Remove `len` and `cap` fields * Fix the indent * Fix the read data address * Make `golang_dial_writes` key `__u64` and include the PID * Fix the read data address one more time * Temporarily disable the PCAP capture * Add a uprobe for `net/http.(*gzipReader).Read` to read chunked HTTP response body * Cancel `golang_crypto_tls_read_uprobe` if it's a gzip read * Make hash map names more meaningful * Pass the connection address from `write` to `gzip` through a common address between `gzip` and `dial` * Fix the probed line number links * Add `golangReader` struct and implement its `Read` method * Have a single counter pair and request response matcher per Golang connection * Add `MIZU_GLOBAL_GOLANG_PATH` environment variable * `NULL` terminate the bytes with `unix.ByteSliceToString` * Temporarily reject the gzip chunks * Add malformed TODOs * Revert "`NULL` terminate the bytes with `unix.ByteSliceToString`" This reverts commit 7ee7ef7e44. * Bring back `len` and `cap` fields * Set `len` and `cap` in `golang_net_http_gzipreader_read_uprobe` as well * Remove two `TODO`s * Fix the `key_gzip` offsets * Compress if it's gzip chunk (probably wrong!) * Revert "Compress if it's gzip chunk (probably wrong!)" This reverts commit 094a7c3da4. * Remove `golang_net_http_gzipreader_read_uprobe` * Read constant 4KiB * Use constant read length * Get the correct len of bytes (saw the second entry) * Set all buffer sizes to `CHUNK_SIZE` * Remove a `TODO` * Revert "Temporarily disable the PCAP capture" This reverts commit a2da15ef2d. * Update `golang_crypto_tls_read_uprobe` * Set the `reader` field of `tlsStream` to fix a `nil pointer dereference` error * Don't export any fields of `golangConnection` * Close the reader when we drop the connection * Add a tracepoint for `sys_enter_close` to detect socket closes * Rename `socket` struct to `golang_socket` * Call `should_tap` in Golang uprobes * Add `log_error` calls * Revert "Temporarily disable OpenSSL" This reverts commit f54d9a453f. * Fix linter * Revert "Revert "Temporarily disable OpenSSL"" This reverts commit 2433d867af. * Change `golang_read_writes` map type from `BPF_RINGBUF` to `BPF_PERF_OUTPUT` * Rename `golang_read_write` to `golang_event` * Define an error * Add comments * Revert "Revert "Revert "Temporarily disable OpenSSL""" This reverts commit e5a1de9c71. * Fix `pollGolang` * Revert "Revert "Revert "Revert "Temporarily disable OpenSSL"""" This reverts commit 6e1bd5d4f3. * Fix `panic: send on closed channel` * Revert "Revert "Revert "Revert "Revert "Temporarily disable OpenSSL""""" This reverts commit 57d0584655. * Use `findLibraryByPid` * Revert "Revert "Revert "Revert "Revert "Revert "Temporarily disable OpenSSL"""""" This reverts commit 46f3d290b0. * Revert "Revert "Revert "Revert "Revert "Revert "Revert "Temporarily disable OpenSSL""""""" This reverts commit 775c833c06. * Log tapping Golang * Fix `Poll` * Refactor `golang_net_http_dialconn_uprobe` * Remove an excess error check * Fix `can only use path@version syntax with 'go get' and 'go install' in module-aware mode` error in `tap/tlstapper/bpf-builder/build.sh` * Unify Golang and OpenSSL under a single perf event buffer and `tls_chunk` struct * Generate `tlsTapperChunkType` type (enum) as well * Use kernel page size for the `sys_closes` perf buffer * Fix the linter error * Fix `MIZU_GLOBAL_GOLANG_PID` environment variable's functionality * Rely on tracepoints for file descriptor retrieval in Golang implementation * Remove the unnecessary changes * Move common functions into `common.c` * Declare `lookup_ssl_info` function to reduce duplication * Fix linter * Add comments and TODOs * Remove `MIZU_GLOBAL_GOLANG_PATH` environment variable * Update the object files * Fix indentation * Update object files * Add `go_abi_internal.h` * Fix `lookup_ssl_info` * Convert indentation to spaces * Add header guard comment * Add more comments * Find the `ret` instructions using Capstone Engine and `uprobe` the `return` statements * Implement `get_fd_from_tcp_conn` function * Separate SSL contexts to OpenSSL and Go * Move `get_count_bytes` from `common.c` to `openssl_uprobes.c` * Rename everything contains Golang to Go * Reduce duplication in `go_uprobes.c` * Update the comments * Install Capstone in CI and Docker native builds * Update `devops/install-capstone.sh` * Add Capstone to AArch64 cross-compilation target * Fix some of the issues on ARM64 * Delete the map element in `_ex_urpobe` * Remove an unsued `LOG_` macro * Rename `aquynh` to `capstone-engine` * Add comment * Revert "Fix some of the issues on ARM64" This reverts commit 0b3eceddf4. * Revert "Revert "Fix some of the issues on ARM64"" This reverts commit 681534ada1. * Update object files * Remove unnecessary return * Increase timeout * #run_acceptance_tests * #run_acceptance_tests * Fix the `arm64v8` sourced builds * #run_acceptance_tests	2022-06-12 14:14:41 +03:00