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3
.gitignore
vendored
3
.gitignore
vendored
@ -2,7 +2,6 @@
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.DS_Store
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# Test Env
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test*/
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env*.sh
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# Test Files
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@ -10,3 +9,5 @@ env*.sh
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/test
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.vscode
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runprog
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*.test
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7
Dockerfile
Normal file
7
Dockerfile
Normal file
@ -0,0 +1,7 @@
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FROM golang
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COPY . /app
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WORKDIR /app/cmd/runprog
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RUN apt update && apt install -y gcc libstdc++6 libseccomp-dev
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RUN go build
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@ -16,6 +16,10 @@ var (
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"/dev/urandom",
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"/proc/meminfo",
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"/etc/localtime",
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"/usr/lib/libstdc++.so.6",
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"/usr/lib/libc.so.6",
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"/usr/lib/libm.so.6",
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"/usr/lib/libgcc_s.so.1",
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}
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// default write permission files
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@ -32,7 +36,6 @@ var (
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"fstat",
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"lseek",
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"dup",
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"dup2",
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"dup3",
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"ioctl",
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"fcntl",
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@ -65,16 +68,24 @@ var (
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"exit_group",
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// others
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"arch_prctl",
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"gettimeofday",
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"getrlimit",
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"getrusage",
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"times",
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"time",
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"clock_gettime",
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"restart_syscall",
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"futex",
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"gettid",
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"getpid",
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"prlimit64",
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"getrandom",
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"set_tid_address",
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"set_robust_list",
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"rseq",
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"newfstatat",
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}
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// default syscalls to trace
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@ -84,21 +95,15 @@ var (
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"execveat",
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// file open
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"open",
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"openat",
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// file delete
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"unlink",
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"unlinkat",
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// soft link
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"readlink",
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"readlinkat",
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// permission check
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"lstat",
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"stat",
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"access",
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"faccessat",
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}
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@ -108,71 +113,11 @@ var (
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// config for different type of program
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// workpath and arg0 have additional read / stat permission
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runptraceConfig = map[string]ProgramConfig{
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"python2.7": {
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Syscall: SyscallConfig{
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ExtraAllow: []string{
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"futex", "getdents", "getdents64", "prlimit64", "getpid", "sysinfo",
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},
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ExtraCount: map[string]int{
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"set_tid_address": 1,
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"set_robust_list": 1,
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},
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},
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FileAccess: FileAccessConfig{
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ExtraRead: []string{
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"/usr/bin/python2.7",
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"/usr/lib/python2.7/",
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"/usr/bin/lib/python2.7/",
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"/usr/local/lib/python2.7/",
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"/usr/lib/pymodules/python2.7/",
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"/usr/bin/Modules/",
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"/usr/bin/pybuilddir.txt",
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"/usr/lib/locale/",
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"./answer.code",
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},
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ExtraStat: []string{
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"/usr", "/usr/bin",
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},
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},
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RunCommand: []string{"/usr/bin/python2.7", "-E", "-s", "-B"},
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},
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"python3": {
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Syscall: SyscallConfig{
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ExtraAllow: []string{
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"futex", "getdents", "getdents64", "prlimit64", "getpid", "sysinfo", "getrandom",
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},
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ExtraCount: map[string]int{
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"set_tid_address": 1,
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"set_robust_list": 1,
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},
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},
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FileAccess: FileAccessConfig{
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ExtraRead: []string{
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"/usr/bin/python3",
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"/usr/lib/python3/",
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"/usr/bin/python3.6",
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"/usr/lib/python3.6/",
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"/usr/bin/lib/python3.6/",
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"/usr/local/lib/python3.6/",
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"/usr/bin/pyvenv.cfg",
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"/usr/pyvenv.cfg",
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"/usr/bin/Modules",
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"/usr/bin/pybuilddir.txt",
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"/usr/lib/dist-python",
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"/usr/lib/locale/",
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"./answer.code",
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},
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ExtraStat: []string{
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"/usr", "/usr/bin", "/usr/lib", "/usr/lib/python36.zip",
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},
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},
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RunCommand: []string{"/usr/bin/python3", "-I", "-B"},
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},
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"compiler": {
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Syscall: SyscallConfig{
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ExtraAllow: []string{
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"gettid", "set_tid_address", "set_robust_list", "futex",
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"getpid", "vfork", "fork", "clone", "execve", "wait4",
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"set_tid_address", "set_robust_list", "futex",
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"vfork", "fork", "clone", "execve", "wait4",
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"clock_gettime", "clock_getres",
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"setrlimit", "pipe",
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"getdents64", "getdents",
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@ -8,7 +8,19 @@ var (
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"/usr/lib/x86_64-linux-gnu/",
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}
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archSyscallAllows = []string{}
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archSyscallAllows = []string{
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"dup2",
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"time",
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"arch_prctl",
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}
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archSyscallTraces = []string{}
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archSyscallTraces = []string{
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"open",
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"unlink",
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"readlink",
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"lstat",
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"stat",
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"access",
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"newfstatat",
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}
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)
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@ -17,10 +17,19 @@ var (
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"uname",
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"set_tls",
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"arm_fadvise64_64",
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"dup2",
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}
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archSyscallTraces = []string{
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"lstat64", // 32-bit
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"stat64", // 32-bit
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"open",
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"unlink",
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"readlink",
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"lstat",
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"stat",
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"access",
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"fstatat",
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"fstatat64",
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}
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)
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@ -8,9 +8,9 @@ var (
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"/usr/lib/aarch64-linux-gnu/",
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}
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archSyscallAllows = []string{
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"newfstatat",
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}
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archSyscallAllows = []string{}
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archSyscallTraces = []string{}
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archSyscallTraces = []string{
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"fstatat",
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}
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)
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4
go.mod
4
go.mod
@ -4,6 +4,6 @@ go 1.24
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require (
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github.com/elastic/go-seccomp-bpf v1.6.0
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golang.org/x/net v0.41.0
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golang.org/x/sys v0.33.0
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golang.org/x/net v0.43.0
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golang.org/x/sys v0.35.0
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)
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8
go.sum
8
go.sum
@ -6,9 +6,9 @@ github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZb
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github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
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github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
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github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
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golang.org/x/net v0.41.0 h1:vBTly1HeNPEn3wtREYfy4GZ/NECgw2Cnl+nK6Nz3uvw=
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golang.org/x/net v0.41.0/go.mod h1:B/K4NNqkfmg07DQYrbwvSluqCJOOXwUjeb/5lOisjbA=
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golang.org/x/sys v0.33.0 h1:q3i8TbbEz+JRD9ywIRlyRAQbM0qF7hu24q3teo2hbuw=
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golang.org/x/sys v0.33.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
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golang.org/x/net v0.43.0 h1:lat02VYK2j4aLzMzecihNvTlJNQUq316m2Mr9rnM6YE=
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golang.org/x/net v0.43.0/go.mod h1:vhO1fvI4dGsIjh73sWfUVjj3N7CA9WkKJNQm2svM6Jg=
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golang.org/x/sys v0.35.0 h1:vz1N37gP5bs89s7He8XuIYXpyY0+QlsKmzipCbUtyxI=
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golang.org/x/sys v0.35.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
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gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
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gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
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@ -66,11 +66,12 @@ func (h *tracerHandler) Handle(ctx *ptracer.Context) ptracer.TraceAction {
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return ptracer.TraceKill
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}
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// not checking dirfd for now (maybe unsafe)
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action := ptracer.TraceKill
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switch syscallName {
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case "open":
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action = h.checkOpen(ctx, ctx.Arg0(), ctx.Arg1())
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case "openat":
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case "openat", "openat2":
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action = h.checkOpen(ctx, ctx.Arg1(), ctx.Arg2())
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case "readlink":
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@ -85,13 +86,15 @@ func (h *tracerHandler) Handle(ctx *ptracer.Context) ptracer.TraceAction {
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case "access":
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action = h.checkStat(ctx, ctx.Arg0())
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case "faccessat", "newfstatat":
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case "faccessat", "faccessat2":
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action = h.checkStat(ctx, ctx.Arg1())
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case "stat", "stat64":
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action = h.checkStat(ctx, ctx.Arg0())
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case "lstat", "lstat64":
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action = h.checkStat(ctx, ctx.Arg0())
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case "statx", "fstatat", "fstatat64", "newfstatat":
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action = h.checkStat(ctx, ctx.Arg1())
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case "execve":
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action = h.checkRead(ctx, ctx.Arg0())
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10
test_c/Makefile
Normal file
10
test_c/Makefile
Normal file
@ -0,0 +1,10 @@
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all: helloworld/main.test nonzeroexit/main.test
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helloworld/main.test: helloworld/main.cpp
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g++ helloworld/main.cpp -o helloworld/main.test -DNDEBUG -O3
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nonzeroexit/main.test: nonzeroexit/main.cpp
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g++ nonzeroexit/main.cpp -o nonzeroexit/main.test -DNDEBUG -O3
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clean:
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rm -rf helloworld/*.test nonzeroexit/*.test
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6
test_c/helloworld/main.cpp
Normal file
6
test_c/helloworld/main.cpp
Normal file
@ -0,0 +1,6 @@
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#include<iostream>
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int main() {
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std::cout << "Hello, world" << std::endl;
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return 0;
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}
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3
test_c/nonzeroexit/main.cpp
Normal file
3
test_c/nonzeroexit/main.cpp
Normal file
@ -0,0 +1,3 @@
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int main() {
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return 100;
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}
|
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Block a user