David van Moolenbroek 9f20bfa6c4 Import NetBSD dhcpcd(8)
The port could be improved by adding support for pselect(2).

Other than that, this port has a few MINIX-specific changes:

- we undefine IN_IFF_ flags to stop dhcpcd from thinking that we have
  operating system support for link-local IPv4 address management;
- we work around one crash bug that seems triggered by using dhcpcd
  on some but not all interfaces;
- we add "noalias" to the default dhcpcd.conf(5) configuration file.

Change-Id: I8a81c2c2af353c5ce08335673b1ab2d4b39178da
2017-03-21 21:59:13 +00:00

67 lines
2.3 KiB
C

/* $NetBSD: control.h,v 1.7 2015/01/30 09:47:05 roy Exp $ */
/*
* dhcpcd - DHCP client daemon
* Copyright (c) 2006-2015 Roy Marples <roy@marples.name>
* All rights reserved
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef CONTROL_H
#define CONTROL_H
#include "dhcpcd.h"
/* Limit queue size per fd */
#define CONTROL_QUEUE_MAX 100
struct fd_data {
TAILQ_ENTRY(fd_data) next;
char *data;
size_t data_len;
uint8_t freeit;
};
TAILQ_HEAD(fd_data_head, fd_data);
struct fd_list {
TAILQ_ENTRY(fd_list) next;
struct dhcpcd_ctx *ctx;
int fd;
unsigned int flags;
struct fd_data_head queue;
struct fd_data_head free_queue;
};
TAILQ_HEAD(fd_list_head, fd_list);
#define FD_LISTEN (1<<0)
#define FD_UNPRIV (1<<1)
int control_start(struct dhcpcd_ctx *, const char *);
int control_stop(struct dhcpcd_ctx *);
int control_open(struct dhcpcd_ctx *, const char *);
ssize_t control_send(struct dhcpcd_ctx *, int, char * const *);
int control_queue(struct fd_list *fd, char *data, size_t data_len, uint8_t fit);
void control_close(struct dhcpcd_ctx *ctx);
#endif