1/* $NetBSD: sandbox-pledge.c,v 1.3 2021/03/05 17:47:16 christos Exp $ */ 2/* $OpenBSD: sandbox-pledge.c,v 1.2 2020/10/18 11:32:01 djm Exp $ */ 3 4/* 5 * Copyright (c) 2015 Theo de Raadt <deraadt@openbsd.org> 6 * 7 * Permission to use, copy, modify, and distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19#include "includes.h" 20__RCSID("$NetBSD: sandbox-pledge.c,v 1.3 2021/03/05 17:47:16 christos Exp $"); 21 22#include <sys/types.h> 23#include <sys/ioctl.h> 24#include <sys/syscall.h> 25#include <sys/socket.h> 26#include <sys/wait.h> 27 28#include <errno.h> 29#include <limits.h> 30#include <stdarg.h> 31#include <stdio.h> 32#include <stdlib.h> 33#include <unistd.h> 34#include <pwd.h> 35 36#include "log.h" 37#include "ssh-sandbox.h" 38#include "xmalloc.h" 39 40struct ssh_sandbox { 41 pid_t child_pid; 42}; 43 44struct ssh_sandbox * 45ssh_sandbox_init(void) 46{ 47 struct ssh_sandbox *box; 48 49 debug3_f("preparing pledge sandbox"); 50 box = xcalloc(1, sizeof(*box)); 51 box->child_pid = 0; 52 53 return box; 54} 55 56void 57ssh_sandbox_child(struct ssh_sandbox *box) 58{ 59 if (pledge("stdio", NULL) == -1) 60 fatal_f("pledge()"); 61} 62 63void 64ssh_sandbox_parent_finish(struct ssh_sandbox *box) 65{ 66 free(box); 67 debug3_f("finished"); 68} 69 70void 71ssh_sandbox_parent_preauth(struct ssh_sandbox *box, pid_t child_pid) 72{ 73 box->child_pid = child_pid; 74 /* Nothing to do here */ 75} 76