arduino-esp32/tools/sdk/include/lwip/apps/dhcpserver.h
2017-09-20 15:36:39 +08:00

85 lines
2.0 KiB
C

// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef __DHCPS_H__
#define __DHCPS_H__
#include "lwip/ip_addr.h"
//#include "esp_common.h"
#define USE_DNS
typedef struct dhcps_state{
s16_t state;
} dhcps_state;
typedef struct dhcps_msg {
u8_t op, htype, hlen, hops;
u8_t xid[4];
u16_t secs, flags;
u8_t ciaddr[4];
u8_t yiaddr[4];
u8_t siaddr[4];
u8_t giaddr[4];
u8_t chaddr[16];
u8_t sname[64];
u8_t file[128];
u8_t options[312];
}dhcps_msg;
/* Defined in esp_misc.h */
typedef struct {
bool enable;
ip4_addr_t start_ip;
ip4_addr_t end_ip;
} dhcps_lease_t;
enum dhcps_offer_option{
OFFER_START = 0x00,
OFFER_ROUTER = 0x01,
OFFER_END
};
#define DHCPS_COARSE_TIMER_SECS 1
#define DHCPS_MAX_LEASE 0x64
#define DHCPS_LEASE_TIME_DEF (120)
struct dhcps_pool{
ip4_addr_t ip;
u8_t mac[6];
u32_t lease_timer;
};
typedef struct _list_node{
void *pnode;
struct _list_node *pnext;
}list_node;
typedef u32_t dhcps_time_t;
typedef u8_t dhcps_offer_t;
typedef struct {
dhcps_offer_t dhcps_offer;
dhcps_time_t dhcps_time;
dhcps_lease_t dhcps_poll;
} dhcps_options_t;
#define dhcps_router_enabled(offer) ((offer & OFFER_ROUTER) != 0)
void dhcps_start(struct netif *netif, ip4_addr_t ip);
void dhcps_stop(struct netif *netif);
void *dhcps_option_info(u8_t op_id, u32_t opt_len);
bool dhcp_search_ip_on_mac(u8_t *mac, ip4_addr_t *ip);
#endif