go-sandbox/README.md
2019-06-30 23:13:56 -07:00

1.3 KiB

go-judger

Under developing.

Goal is to reimplement uoj-judger/run_program in GO language using libseccomp.

Install:

  • install go compiler: apt install golang-go
  • install libseccomp-dev: apt install libseccomp-dev
  • install: go install github.com/criyle/go-judger/...

Features (same as uoj-judger/run_program):

  1. Restricted computing resource: Time & Memory (Stack) & Output
  2. Restricted syscall access (by libseccomp & ptrace)
  3. Restricted file access (read & write & access & exec)

Default file access action:

  • check file read / write: open, openat
  • check file read: readlink, readlinkat
  • check file write: unlink, unlinkat, chmod, rename
  • check file access: stat, lstat, access, faccessat
  • check file exec: execve

Packages:

  • Secutil: provides common utility function that wrappers libseccomp
  • Tracee: ptraced fork-exec with seccomp loaded
  • Tracer: ptrace tracee and provides syscall trap context

Executable:

  • run_program: under construction

Configuations:

  • run_program/config.go: all configs toward running specs

Features:

  • Percise resource limits (s -> ms, mb -> kb)
  • More architectures (arm32, arm64, x86)

TODO:

  • allow multiple traced programs
  • allow pipes
  • ...