1 /* SPDX-License-Identifier: BSD-2-Clause */
2 /*
3  * Privilege Separation for dhcpcd
4  * Copyright (c) 2006-2020 Roy Marples <roy@marples.name>
5  * All rights reserved
6 
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 #ifndef PRIVSEP_CTL_H
30 #define PRIVSEP_CTL_H
31 
32 #define IN_PRIVSEP_CONTROLLER(ctx) \
33     (IN_PRIVSEP((ctx)) && (ctx)->ps_control_pid == getpid())
34 
35 pid_t ps_ctl_start(struct dhcpcd_ctx *);
36 int ps_ctl_stop(struct dhcpcd_ctx *);
37 ssize_t ps_ctl_handleargs(struct fd_list *, char *, size_t);
38 ssize_t ps_ctl_sendargs(struct fd_list *, void *, size_t);
39 ssize_t ps_ctl_sendeof(struct fd_list *fd);
40 
41 #endif
42