platform-pledge.c revision 323134 
1/*
2 * Copyright (c) 2015 Joyent, Inc
3 * Author: Alex Wilson <alex.wilson@joyent.com>
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#include <sys/types.h>
21
22#include <stdarg.h>
23#include <unistd.h>
24
25#include "platform.h"
26
27#include "openbsd-compat/openbsd-compat.h"
28
29/*
30 * Drop any fine-grained privileges that are not needed for post-startup
31 * operation of ssh-agent
32 *
33 * Should be as close as possible to pledge("stdio cpath unix id proc exec", ...)
34 */
35void
36platform_pledge_agent(void)
37{
38#ifdef USE_SOLARIS_PRIVS
39	/*
40	 * Note: Solaris priv dropping is closer to tame() than pledge(), but
41	 * we will use what we have.
42	 */
43	solaris_drop_privs_root_pinfo_net();
44#endif
45}
46
47/*
48 * Drop any fine-grained privileges that are not needed for post-startup
49 * operation of sftp-server
50 */
51void
52platform_pledge_sftp_server(void)
53{
54#ifdef USE_SOLARIS_PRIVS
55	solaris_drop_privs_pinfo_net_fork_exec();
56#endif
57}
58
59/*
60 * Drop any fine-grained privileges that are not needed for the post-startup
61 * operation of the SSH client mux
62 *
63 * Should be as close as possible to pledge("stdio proc tty", ...)
64 */
65void
66platform_pledge_mux(void)
67{
68#ifdef USE_SOLARIS_PRIVS
69	solaris_drop_privs_root_pinfo_net_exec();
70#endif
71}
72