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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  */
35 void
platform_pledge_agent(void)36 platform_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  */
51 void
platform_pledge_sftp_server(void)52 platform_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  */
65 void
platform_pledge_mux(void)66 platform_pledge_mux(void)
67 {
68 #ifdef USE_SOLARIS_PRIVS
69 	solaris_drop_privs_root_pinfo_net_exec();
70 #endif
71 }
72