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