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delete sandbox.c

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virusdefender 2016-01-20 16:14:14 +08:00
parent 4a185ab480
commit 5e2c37532f
3 changed files with 0 additions and 99 deletions
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8
Makefile
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@ -1,8 +0,0 @@
CC ?= gcc
PREFIX ?= /usr/local
sandbox.so: sandbox.c
$(CC) $^ $(CFLAGS) -fPIC -ldl -shared -lseccomp -o $@
clean:
rm -f sandbox.so

1
readme
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@ -1,4 +1,3 @@
make
sudo python setup.py install
touch in out
gcc test.c -o test

90
sandbox.c
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@ -1,90 +0,0 @@
////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2012-2015 Jun Wu <quark@zju.edu.cn>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
////////////////////////////////////////////////////////////////////////////////
#define _BSD_SOURCE // readlink
#include <dlfcn.h>
#include <stdlib.h> // exit
#include <string.h> // strstr, memset
#include <link.h> // ElfW
#include <errno.h> // EPERM
#include <unistd.h> // readlink
#include <seccomp.h>
#include <stdio.h>
int syscalls_whitelist[] = {SCMP_SYS(read), SCMP_SYS(write), SCMP_SYS(fstat),
SCMP_SYS(mmap), SCMP_SYS(mprotect), SCMP_SYS(munmap),
SCMP_SYS(brk), SCMP_SYS(access), SCMP_SYS(exit_group)};
typedef int (*main_t)(int, char **, char **);
#ifndef __unbounded
# define __unbounded
#endif
int __libc_start_main(main_t main, int argc,
char *__unbounded *__unbounded ubp_av,
ElfW(auxv_t) *__unbounded auxvec,
__typeof (main) init,
void (*fini) (void),
void (*rtld_fini) (void), void *__unbounded
stack_end)
{
int i;
ssize_t len;
void *libc;
int whitelist_length = sizeof(syscalls_whitelist) / sizeof(int);
scmp_filter_ctx ctx = NULL;
int (*libc_start_main)(main_t main,
int,
char *__unbounded *__unbounded,
ElfW(auxv_t) *,
__typeof (main),
void (*fini) (void),
void (*rtld_fini) (void),
void *__unbounded stack_end);
// Get __libc_start_main entry point
libc = dlopen("libc.so.6", RTLD_LOCAL | RTLD_LAZY);
if (!libc) {
exit(1);
}
libc_start_main = dlsym(libc, "__libc_start_main");
if (!libc_start_main) {
exit(2);
}
ctx = seccomp_init(SCMP_ACT_KILL);
if (!ctx) {
exit(3);
}
for(i = 0; i < whitelist_length; i++) {
if (seccomp_rule_add(ctx, SCMP_ACT_ALLOW, syscalls_whitelist[i], 0)) {
exit(4);
}
}
if (seccomp_load(ctx)) {
exit(5);
}
seccomp_release(ctx);
return ((*libc_start_main)(main, argc, ubp_av, auxvec,
init, fini, rtld_fini, stack_end));
}