1 /* $NetBSD: control.h,v 1.7 2015/01/30 09:47:05 roy Exp $ */ 2 3 /* 4 * dhcpcd - DHCP client daemon 5 * Copyright (c) 2006-2015 Roy Marples <roy@marples.name> 6 * All rights reserved 7 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #ifndef CONTROL_H 31 #define CONTROL_H 32 33 #include "dhcpcd.h" 34 35 /* Limit queue size per fd */ 36 #define CONTROL_QUEUE_MAX 100 37 38 struct fd_data { 39 TAILQ_ENTRY(fd_data) next; 40 char *data; 41 size_t data_len; 42 uint8_t freeit; 43 }; 44 TAILQ_HEAD(fd_data_head, fd_data); 45 46 struct fd_list { 47 TAILQ_ENTRY(fd_list) next; 48 struct dhcpcd_ctx *ctx; 49 int fd; 50 unsigned int flags; 51 struct fd_data_head queue; 52 struct fd_data_head free_queue; 53 }; 54 TAILQ_HEAD(fd_list_head, fd_list); 55 56 #define FD_LISTEN (1<<0) 57 #define FD_UNPRIV (1<<1) 58 59 int control_start(struct dhcpcd_ctx *, const char *); 60 int control_stop(struct dhcpcd_ctx *); 61 int control_open(struct dhcpcd_ctx *, const char *); 62 ssize_t control_send(struct dhcpcd_ctx *, int, char * const *); 63 int control_queue(struct fd_list *fd, char *data, size_t data_len, uint8_t fit); 64 void control_close(struct dhcpcd_ctx *ctx); 65 66 #endif 67