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/*
* Copyright (c) 2004, Nate Nielsen
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above
* copyright notice, this list of conditions and the
* following disclaimer.
* * Redistributions in binary form must reproduce the
* above copyright notice, this list of conditions and
* the following disclaimer in the documentation and/or
* other materials provided with the distribution.
* * The names of contributors to this software may not be
* used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
*
* CONTRIBUTORS
* Nate Nielsen <nielsen@memberwebs.com>
*
*/
/*
* Original code and ideas from FreeBSD's jail.c written by
* <phk@FreeBSD.ORG>
*/
#include <sys/types.h>
#include <sys/param.h>
#include <sys/jail.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <paths.h>
#include <stdio.h>
#include <err.h>
#include <unistd.h>
#include <limits.h>
#include "util.h"
#ifdef HAVE_CONFIG_H
#include "../config.h"
#endif
#define START_SCRIPT "/etc/rc"
static char* START_ARGS[] = { _PATH_BSHELL, START_SCRIPT };
static void usage();
int main(int argc, char* argv[])
{
int ch, jid;
struct jail j;
int printjid = 0;
struct in_addr in;
while((ch = getopt(argc, argv, "i")) != -1)
{
switch(ch)
{
case 'i':
printjid = 1;
break;
case '?':
default:
usage();
}
}
argc -= optind;
argv += optind;
if(argc < 3)
usage();
if(getuid() != 0)
errx(1, "must be run as root");
if(chdir(argv[0]) != 0)
err(1, "couldn't change to jail directory: %s", argv[0]);
if(inet_aton(argv[2], &in) != 1)
errx(1, "invalid ip address: %s", argv[2]);
memset(&j, 0, sizeof(j));
j.version = 0;
j.path = argv[0];
j.hostname = argv[1];
j.ip_number = ntohl(in.s_addr);
/* Here's where we actually go into the jail */
jid = jail(&j);
if(jid == -1)
err(1, "couldn't create jail");
if(printjid)
{
printf("%d\n", jid);
fflush(stdout);
}
argc -= 3;
argv += 3;
if(argc == 0)
{
if(!check_jail_command(NULL, START_SCRIPT))
exit(1);
run_jail_command(NULL, START_ARGS[0], START_ARGS,
JAIL_RUN_CONSOLE | JAIL_RUN_STDOUT);
}
else
{
if(!check_jail_command(NULL, argv[0]))
exit(1);
run_jail_command(NULL, argv[0], argv,
JAIL_RUN_CONSOLE | JAIL_RUN_STDOUT);
}
return 0;
}
static void usage()
{
fprintf(stderr, "usage: jstart [-i] path hostname ip-number [command ...]\n");
exit(2);
}
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