Annotation of src/usr.bin/ssh/sandbox-tame.c, Revision 1.2
1.2 ! deraadt 1: /* $OpenBSD: sandbox-tame.c,v 1.1 2015/10/02 01:39:52 deraadt Exp $ */
1.1 deraadt 2: /*
1.2 ! deraadt 3: * Copyright (c) 2015 Theo de Raadt <deraadt@openbsd.org>
1.1 deraadt 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:
36: struct ssh_sandbox {
37: pid_t child_pid;
38: };
39:
40: struct ssh_sandbox *
41: ssh_sandbox_init(void)
42: {
43: struct ssh_sandbox *box;
44:
45: debug3("%s: preparing tame sandbox", __func__);
46: box = xcalloc(1, sizeof(*box));
47: box->child_pid = 0;
48:
49: return box;
50: }
51:
52: void
53: ssh_sandbox_child(struct ssh_sandbox *box)
54: {
55: if (tame("stdio", NULL) == -1)
56: fatal("%s: tame()", __func__);
57: }
58:
59: void
60: ssh_sandbox_parent_finish(struct ssh_sandbox *box)
61: {
62: free(box);
63: debug3("%s: finished", __func__);
64: }
65:
66: void
67: ssh_sandbox_parent_preauth(struct ssh_sandbox *box, pid_t child_pid)
68: {
69: box->child_pid = child_pid;
70: /* Nothing to do here */
71: }