You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
82 lines
2.0 KiB
82 lines
2.0 KiB
4 months ago
|
/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
|
||
|
|
* Use of this source code is governed by a BSD-style license that can be
|
||
|
|
* found in the LICENSE file.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <dlfcn.h>
|
||
|
|
#include <errno.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
|
||
|
|
#include "libminijail.h"
|
||
|
|
|
||
|
|
#include "elfparse.h"
|
||
|
|
#include "minijail0_cli.h"
|
||
|
|
#include "util.h"
|
||
|
|
|
||
|
|
int main(int argc, char *argv[])
|
||
|
|
{
|
||
|
|
struct minijail *j = minijail_new();
|
||
|
|
const char *dl_mesg = NULL;
|
||
|
|
const char *preload_path = PRELOADPATH;
|
||
|
|
int exit_immediately = 0;
|
||
|
|
ElfType elftype = ELFERROR;
|
||
|
|
int consumed = parse_args(j, argc, argv, &exit_immediately, &elftype,
|
||
|
|
&preload_path);
|
||
|
|
argc -= consumed;
|
||
|
|
argv += consumed;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Make the process group ID of this process equal to its PID.
|
||
|
|
* In the non-interactive case (e.g. when minijail0 is started from
|
||
|
|
* init) this ensures the parent process and the jailed process
|
||
|
|
* can be killed together.
|
||
|
|
*
|
||
|
|
* Don't fail on EPERM, since setpgid(0, 0) can only EPERM when
|
||
|
|
* the process is already a process group leader.
|
||
|
|
*/
|
||
|
|
if (setpgid(0 /* use calling PID */, 0 /* make PGID = PID */)) {
|
||
|
|
if (errno != EPERM) {
|
||
|
|
fprintf(stderr, "setpgid(0, 0) failed\n");
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (elftype == ELFSTATIC) {
|
||
|
|
/*
|
||
|
|
* Target binary is statically linked so we cannot use
|
||
|
|
* libminijailpreload.so.
|
||
|
|
*/
|
||
|
|
minijail_run_no_preload(j, argv[0], argv);
|
||
|
|
} else if (elftype == ELFDYNAMIC) {
|
||
|
|
/*
|
||
|
|
* Target binary is dynamically linked so we can
|
||
|
|
* inject libminijailpreload.so into it.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* Check that we can dlopen() libminijailpreload.so. */
|
||
|
|
if (!dlopen(preload_path, RTLD_LAZY | RTLD_LOCAL)) {
|
||
|
|
dl_mesg = dlerror();
|
||
|
|
fprintf(stderr, "dlopen(): %s\n", dl_mesg);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
minijail_set_preload_path(j, preload_path);
|
||
|
|
minijail_run(j, argv[0], argv);
|
||
|
|
} else {
|
||
|
|
fprintf(stderr,
|
||
|
|
"Target program '%s' is not a valid ELF file.\n",
|
||
|
|
argv[0]);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (exit_immediately)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
int ret = minijail_wait(j);
|
||
|
|
#if defined(__SANITIZE_ADDRESS__)
|
||
|
|
minijail_destroy(j);
|
||
|
|
#endif /* __SANITIZE_ADDRESS__ */
|
||
|
|
return ret;
|
||
|
|
}
|