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 "includes.h" 19 20 #ifdef SANDBOX_PLEDGE 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 40 struct ssh_sandbox { 41 pid_t child_pid; 42 }; 43 44 struct ssh_sandbox * 45 ssh_sandbox_init(struct monitor *m) 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 56 void 57 ssh_sandbox_child(struct ssh_sandbox *box) 58 { 59 if (pledge("stdio", NULL) == -1) 60 fatal_f("pledge()"); 61 } 62 63 void 64 ssh_sandbox_parent_finish(struct ssh_sandbox *box) 65 { 66 free(box); 67 debug3_f("finished"); 68 } 69 70 void 71 ssh_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 77 #endif /* SANDBOX_PLEDGE */ 78