1/*
2 * dhcpcd - DHCP client daemon
3 * Copyright (c) 2006-2019 Roy Marples <roy@marples.name>
4 * All rights reserved
5
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28#ifndef CONTROL_H
29#define CONTROL_H
30
31#include "dhcpcd.h"
32
33/* Limit queue size per fd */
34#define CONTROL_QUEUE_MAX 100
35
36struct fd_data {
37 TAILQ_ENTRY(fd_data) next;
38 char *data;
39 size_t data_len;
40 uint8_t freeit;
41};
42TAILQ_HEAD(fd_data_head, fd_data);
43
44struct fd_list {
45 TAILQ_ENTRY(fd_list) next;
46 struct dhcpcd_ctx *ctx;
47 int fd;
48 unsigned int flags;
49 struct fd_data_head queue;
50 struct fd_data_head free_queue;
51};
52TAILQ_HEAD(fd_list_head, fd_list);
53
54#define FD_LISTEN (1<<0)
55#define FD_UNPRIV (1<<1)
56
57int control_start(struct dhcpcd_ctx *, const char *);
58int control_stop(struct dhcpcd_ctx *);
59int control_open(const char *);
60ssize_t control_send(struct dhcpcd_ctx *, int, char * const *);
61int control_queue(struct fd_list *fd, char *data, size_t data_len, uint8_t fit);
62void control_close(struct dhcpcd_ctx *ctx);
63
64#endif
65