1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (C) 2011 Hiroki Sato <hrs@FreeBSD.org> 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 PROJECT 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 PROJECT 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 * $FreeBSD$ 29 * 30 */ 31 32 #define SOCK_BACKLOG 5 33 34 #define CM_MSG_MAXLEN 8192 35 #define CM_VERSION 1 36 #define CM_VERSION_STR "1.0" 37 38 #define CM_TYPE_EOM 0 39 #define CM_TYPE_ACK 1 40 #define CM_TYPE_ERR 2 41 #define CM_TYPE_NUL 3 42 #define CM_TYPE_REQ_SET_PROP 4 43 #define CM_TYPE_REQ_GET_PROP 5 44 #define CM_TYPE_MAX 6 45 46 #define CM_STATE_EOM 0 47 #define CM_STATE_INIT 1 48 #define CM_STATE_MSG_DISPATCH 2 49 #define CM_STATE_MSG_RECV 3 50 #define CM_STATE_ACK_WAIT 4 51 52 struct ctrl_msg_hdr { 53 int cm_version; 54 size_t cm_len; 55 int cm_type; 56 }; 57 58 struct ctrl_msg_pl { 59 char *cp_ifname; 60 char *cp_key; 61 62 size_t cp_val_len; 63 char *cp_val; 64 }; 65 66 int csock_open(struct sockinfo *, mode_t); 67 int csock_close(struct sockinfo *); 68 int csock_listen(struct sockinfo *); 69 int csock_accept(struct sockinfo *); 70 int cm_send(int, char *); 71 int cm_recv(int, char *); 72 73 size_t cm_pl2bin(char *, struct ctrl_msg_pl *); 74 struct ctrl_msg_pl *cm_bin2pl(char *, struct ctrl_msg_pl *); 75 size_t cm_str2bin(char *, void *, size_t); 76 void *cm_bin2str(char *, void *, size_t); 77