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rf_table.h
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rf_table.h
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#ifndef __RF_TABLE__
#define __RF_TABLE__
#include <string.h>
#include <sys/syscall.h>
#include "core.h"
#include "logger.h"
/*
* RF_table 每个值对应的是该syscall可被调用的次数
* 取值有3种:
* 正值: 表示可被调用的次数, 每次调用后会减一(比如fork)
* 零值: 表示禁止调用(比如open)
* 负值: 表示不限制该syscall(比如write)
*
* RF_table的初始化由init_RF_table函数完成
*/
short RF_table[1024] = {0};
/*
* RF_* 数组对是用于初始化RF_table的数据来源,
* 每两个数字为一组k/v: syscall_id:次数
* 次数 < 0 表示不限制
* 次数 > 0 表示可调用次数, 运行时每调用一次减一
* 次数 = 0 (运行时达到) 不再允许调用该syscall
* 最后一个syscall_id存放的是非正值，表示结束
* 未指定的syscall_id的次数将被自动初始化为0
*/
#if __WORDSIZE == 32 //x86_32
//c or c++
int RF_C[512] =
{
SYS_access, -1,
SYS_brk, -1,
SYS_close, -1,
SYS_execve, 1,
SYS_exit_group, -1,
SYS_fstat64, -1,
SYS_futex, -1,
SYS_gettimeofday, -1,
SYS_mmap2, -1,
SYS_mremap, -1,
SYS_mprotect, -1,
SYS_munmap, -1,
SYS_lseek, -1,
SYS_read, -1,
SYS_set_thread_area,-1,
SYS_uname, -1,
SYS_write, -1,
SYS_writev, -1,
201, -1,
-1
};
int RF_CPP[512] =
{
SYS_access, -1,
SYS_brk, -1,
SYS_close, -1,
SYS_execve, 1,
SYS_exit_group, -1,
SYS_fstat64, -1,
SYS_futex, -1,
SYS_gettimeofday, -1,
SYS_mmap2, -1,
SYS_mremap, -1,
SYS_mprotect, -1,
SYS_munmap, -1,
SYS_lseek, -1,
SYS_read, -1,
SYS_set_thread_area,-1,
SYS_uname, -1,
SYS_write, -1,
SYS_writev, -1,
201, -1,
-1
};
//Pascal
int RF_PASCAL[512] =
{
SYS_close, -1,
SYS_execve, 1,
SYS_exit_group, -1,
SYS_futex, -1,
SYS_gettimeofday, -1,
SYS_ioctl, -1,
SYS_mmap, -1,
SYS_mremap, -1,
SYS_munmap, -1,
SYS_lseek, -1,
SYS_read, -1,
SYS_readlink, -1,
SYS_rt_sigaction, -1,
SYS_ugetrlimit, -1,
SYS_uname, -1,
SYS_write, -1,
SYS_writev, -1,
-1
};
//Java (TODO暂未测试)
int RF_JAVA[512] =
{
SYS_access, -1,
SYS_brk, -1,
SYS_clone, -1,
SYS_close, -1,
SYS_execve, -1,
SYS_exit, -1,
SYS_exit_group, -1,
SYS_fcntl64, -1,
SYS_fstat64, -1,
SYS_futex, -1,
SYS_getdents64, -1,
SYS_getegid32, -1,
SYS_geteuid32, -1,
SYS_getgid32, -1,
SYS_getrlimit, -1,
SYS_gettimeofday, -1,
SYS_getuid32, -1,
SYS_mmap, -1,
SYS_mmap2, -1,
SYS_mremap, -1,
SYS_mprotect, -1,
SYS_munmap, -1,
SYS_lseek, -1,
SYS_open, -1,
SYS_read, -1,
SYS_readlink, -1,
SYS_rt_sigaction, -1,
SYS_rt_sigprocmask, -1,
SYS_set_robust_list,-1,
SYS_set_thread_area,-1,
SYS_set_tid_address,-1,
SYS_sigprocmask, -1,
SYS_stat64, -1,
SYS_ugetrlimit, -1,
SYS_uname, -1,
-1
};
#elif defined __x86_64__
int RF_C[512] =
{
SYS_access, -1,
SYS_arch_prctl, -1,
SYS_brk, -1,
SYS_close, -1,
SYS_execve, 1,
SYS_exit_group, -1,
SYS_fstat, -1,
SYS_futex, -1,
SYS_gettimeofday, -1,
SYS_mmap, -1,
SYS_mremap, -1,
SYS_mprotect, -1,
SYS_munmap, -1,
SYS_lseek, -1,
SYS_read, -1,
SYS_set_thread_area,-1,
SYS_uname, -1,
SYS_write, -1,
SYS_writev, -1,
SYS_time, -1,
SYS_readlink, -1,
-1
};
int RF_CPP[512] =
{
SYS_access, -1,
SYS_arch_prctl, -1,
SYS_brk, -1,
SYS_close, -1,
SYS_execve, 1,
SYS_exit_group, -1,
SYS_fstat, -1,
SYS_futex, -1,
SYS_gettimeofday, -1,
SYS_mmap, -1,
SYS_mremap, -1,
SYS_mprotect, -1,
SYS_munmap, -1,
SYS_lseek, -1,
SYS_read, -1,
SYS_set_thread_area,-1,
SYS_uname, -1,
SYS_write, -1,
SYS_writev, -1,
SYS_time, -1,
SYS_readlink, -1, //原本ubuntu 12.04不需要这一条
-1
};
int RF_PASCAL[512] =
{
SYS_close, -1,
SYS_execve, 1,
SYS_exit_group, -1,
SYS_futex, -1,
SYS_getrlimit, -1,
SYS_gettimeofday, -1,
SYS_ioctl, -1,
SYS_mmap, -1,
SYS_mremap, -1,
SYS_munmap, -1,
SYS_lseek, -1,
SYS_read, -1,
SYS_readlink, -1,
SYS_rt_sigaction, -1,
SYS_uname, -1,
SYS_write, -1,
SYS_writev, -1,
SYS_time, -1,
SYS_readlink, -1,
-1
};
int RF_JAVA[512] =
{
SYS_access, -1,
SYS_arch_prctl, -1,
SYS_brk, -1,
SYS_clone, -1,
SYS_close, -1,
SYS_execve, -1,
SYS_exit_group, -1,
SYS_fstat, -1,
SYS_futex, -1,
SYS_getegid, -1,
SYS_geteuid, -1,
SYS_getgid, -1,
SYS_getrlimit, -1,
SYS_gettimeofday, -1,
SYS_getuid, -1,
SYS_mmap, -1,
SYS_mremap, -1,
SYS_mprotect, -1,
SYS_munmap, -1,
SYS_lseek, -1,
SYS_open, -1,
SYS_read, -1,
SYS_readlink, -1,
SYS_rt_sigaction, -1,
SYS_rt_sigprocmask, -1,
SYS_set_robust_list,-1,
SYS_set_tid_address,-1,
SYS_stat, -1,
SYS_uname, -1,
SYS_write, -1,
SYS_writev, -1,
SYS_time, -1,
SYS_readlink, -1,
-1
};
#endif
//根据 RF_* 数组来初始化RF_table
void init_RF_table(int lang)
{
int *p = NULL;
switch (lang)
{
case JUDGE_CONF::LANG_C:
p = RF_C;
break;
case JUDGE_CONF::LANG_CPP:
p = RF_CPP;
break;
case JUDGE_CONF::LANG_JAVA:
p = RF_JAVA;
break;
//case judge_conf::LANG_PASCAL:
// p = RF_PASCAL;
// break;
default:
FM_LOG_WARNING("Unknown language: %d", lang);
break;
}
memset(RF_table, 0, sizeof(RF_table));
for (int i = 0; p[i] >= 0; i += 2)
{
RF_table[p[i]] = p[i+1];
}
}
#endif