dhserver.h

00001 /*
00002  * The MIT License (MIT)
00003  *
00004  * Copyright (c) 2015 by Sergey Fetisov <fsenok@gmail.com>
00005  * 
00006  * Permission is hereby granted, free of charge, to any person obtaining a copy
00007  * of this software and associated documentation files (the "Software"), to deal
00008  * in the Software without restriction, including without limitation the rights
00009  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
00010  * copies of the Software, and to permit persons to whom the Software is
00011  * furnished to do so, subject to the following conditions:
00012  * 
00013  * The above copyright notice and this permission notice shall be included in all
00014  * copies or substantial portions of the Software.
00015  * 
00016  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00017  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00018  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
00019  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00020  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00021  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
00022  * SOFTWARE.
00023  */
00024 
00025 /*
00026  * version: 1.0 demo (7.02.2015)
00027  * brief:   tiny dhcp ipv4 server using lwip (pcb)
00028  * ref:     https://lists.gnu.org/archive/html/lwip-users/2012-12/msg00016.html
00029  */
00030 
00031 #ifndef DHSERVER_H
00032 #define DHSERVER_H
00033 
00034 #include <stdint.h>
00035 #include <stdbool.h>
00036 #include <stdio.h>
00037 #include <string.h>
00038 #include "lwip/err.h"
00039 #include "lwip/udp.h"
00040 #include "netif/etharp.h"
00041 
00042 typedef struct dhcp_entry
00043 {
00044     uint8_t  mac[6];
00045     uint8_t  addr[4];
00046     uint8_t  subnet[4];
00047     uint32_t lease;
00048 } dhcp_entry_t;
00049 
00050 typedef struct dhcp_config
00051 {
00052     uint8_t       addr[4];
00053     uint16_t      port;
00054     uint8_t       dns[4];
00055     const char   *domain;
00056     int           num_entry;
00057     dhcp_entry_t *entries;
00058 } dhcp_config_t;
00059 
00060 err_t dhserv_init(dhcp_config_t *config);
00061 void dhserv_free(void);
00062 
00063 #endif /* DHSERVER_H */