import argparse
import sys
import util
from seccomp import *
table = [
{"syscall": "read", "error": 0, "arg_cnt": 0 },
{"syscall": "write", "error": 1, "arg_cnt": 0 },
{"syscall": "open", "error": 2, "arg_cnt": 0 },
{"syscall": "close", "error": 3, "arg_cnt": 2, "arg1": 100, "arg2": 101 },
{"syscall": "stat", "error": 4, "arg_cnt": 0 },
{"syscall": "fstat", "error": 5, "arg_cnt": 0 },
{"syscall": "lstat", "error": 6, "arg_cnt": 0 },
{"syscall": "poll", "error": 7, "arg_cnt": 1, "arg1": 102 },
{"syscall": "lseek", "error": 8, "arg_cnt": 2, "arg1": 103, "arg2": 104 },
{"syscall": "mmap", "error": 9, "arg_cnt": 0 },
{"syscall": "mprotect", "error": 10, "arg_cnt": 0 },
{"syscall": "munmap", "error": 11, "arg_cnt": 0 },
{"syscall": "brk", "error": 12, "arg_cnt": 0 },
{"syscall": "rt_sigaction", "error": 13, "arg_cnt": 0 },
{"syscall": "rt_sigprocmask", "error": 14, "arg_cnt": 0 },
{"syscall": "rt_sigreturn", "error": 15, "arg_cnt": 0 },
{"syscall": "ioctl", "error": 16, "arg_cnt": 0 },
{"syscall": "pread64", "error": 17, "arg_cnt": 1, "arg1": 105 },
{"syscall": "pwrite64", "error": 18, "arg_cnt": 0 },
{"syscall": "readv", "error": 19, "arg_cnt": 0 },
{"syscall": "writev", "error": 20, "arg_cnt": 0 },
{"syscall": "access", "error": 21, "arg_cnt": 0 },
{"syscall": "pipe", "error": 22, "arg_cnt": 0 },
{"syscall": "select", "error": 23, "arg_cnt": 2, "arg1": 106, "arg2": 107 },
{"syscall": "sched_yield", "error": 24, "arg_cnt": 0 },
{"syscall": "mremap", "error": 25, "arg_cnt": 2, "arg1": 108, "arg2": 109 },
{"syscall": "msync", "error": 26, "arg_cnt": 0 },
{"syscall": "mincore", "error": 27, "arg_cnt": 0 },
{"syscall": "madvise", "error": 28, "arg_cnt": 0 },
{"syscall": "shmget", "error": 29, "arg_cnt": 0 },
{"syscall": "shmat", "error": 30, "arg_cnt": 1, "arg1": 110 },
{"syscall": "shmctl", "error": 31, "arg_cnt": 1, "arg1": 111 },
{"syscall": "dup", "error": 32, "arg_cnt": 1, "arg1": 112 },
{"syscall": "dup2", "error": 33, "arg_cnt": 0 },
{"syscall": "pause", "error": 34, "arg_cnt": 0 },
{"syscall": "nanosleep", "error": 35, "arg_cnt": 0 },
{"syscall": "getitimer", "error": 36, "arg_cnt": 0 },
{"syscall": "alarm", "error": 37, "arg_cnt": 0 },
]
def test(args):
f = SyscallFilter(ALLOW)
for entry in table:
if entry["arg_cnt"] == 2:
f.add_rule(ERRNO(entry["error"]), entry["syscall"],
Arg(0, EQ, entry["arg1"]),
Arg(1, EQ, entry["arg2"]))
elif entry["arg_cnt"] == 1:
f.add_rule(ERRNO(entry["error"]), entry["syscall"],
Arg(0, EQ, entry["arg1"]))
else:
f.add_rule(ERRNO(entry["error"]), entry["syscall"])
return f
args = util.get_opt()
ctx = test(args)
util.filter_output(args, ctx)