kopia lustrzana https://github.com/espressif/esp-idf
110 wiersze
2.9 KiB
C
110 wiersze
2.9 KiB
C
/*
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* SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef __DHCPS_H__
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#define __DHCPS_H__
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#include "sdkconfig.h"
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#include "lwip/ip_addr.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct dhcps_state{
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s16_t state;
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} dhcps_state;
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typedef struct dhcps_msg {
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u8_t op, htype, hlen, hops;
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u8_t xid[4];
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u16_t secs, flags;
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u8_t ciaddr[4];
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u8_t yiaddr[4];
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u8_t siaddr[4];
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u8_t giaddr[4];
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u8_t chaddr[16];
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u8_t sname[64];
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u8_t file[128];
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u8_t options[312];
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}dhcps_msg;
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/* Defined in esp_misc.h */
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typedef struct {
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bool enable;
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ip4_addr_t start_ip;
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ip4_addr_t end_ip;
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} dhcps_lease_t;
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enum dhcps_offer_option{
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OFFER_START = 0x00,
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OFFER_ROUTER = 0x01,
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OFFER_DNS = 0x02,
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OFFER_END
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};
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/** @brief DHCP server's description of compile time configuration values in dhcpserver.c
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*
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* - DHCPS_DEBUG: Prints very detailed debug messages if set to 1, hardcoded to 0
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* - USE_CLASS_B_NET: Use class B network mask if enabled, not-defined (could be enabled as CC_FLAGS)
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* - MAX_STATION_NUM: Maximum number of clients, set to Kconfig value CONFIG_LWIP_DHCPS_MAX_STATION_NUM
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* - LWIP_HOOK_DHCPS_POST_STATE: Used to inject user code after parsing DHCP message, not defined
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* - could be enabled in lwipopts.h or via CC_FLAGS
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* - basic usage of the hook to print hex representation of the entire option field is below:
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* #define LWIP_HOOK_DHCPS_POST_STATE(msg, len, state) \
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* ({ s16_t ret = state; if (state == DHCPS_STATE_ACK) { ESP_LOG_BUFFER_HEXDUMP("DHCPS",msg->options, 312, ESP_LOG_INFO);} ret; })
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*/
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/**
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* @brief Definitions related to lease time, units and limits
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*/
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#define DHCPS_COARSE_TIMER_SECS 1
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#define DHCPS_MAX_LEASE 0x64
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#define DHCPS_LEASE_TIME_DEF (120)
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#define DHCPS_LEASE_UNIT CONFIG_LWIP_DHCPS_LEASE_UNIT
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struct dhcps_pool{
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ip4_addr_t ip;
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u8_t mac[6];
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u32_t lease_timer;
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};
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typedef u32_t dhcps_time_t;
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typedef u8_t dhcps_offer_t;
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typedef struct {
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dhcps_offer_t dhcps_offer;
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dhcps_offer_t dhcps_dns;
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dhcps_time_t dhcps_time;
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dhcps_lease_t dhcps_poll;
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} dhcps_options_t;
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typedef void (*dhcps_cb_t)(u8_t client_ip[4], u8_t client_mac[6]);
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static inline bool dhcps_router_enabled (dhcps_offer_t offer)
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{
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return (offer & OFFER_ROUTER) != 0;
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}
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static inline bool dhcps_dns_enabled (dhcps_offer_t offer)
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{
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return (offer & OFFER_DNS) != 0;
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}
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void dhcps_start(struct netif *netif, ip4_addr_t ip);
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void dhcps_stop(struct netif *netif);
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void *dhcps_option_info(u8_t op_id, u32_t opt_len);
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void dhcps_set_option_info(u8_t op_id, void *opt_info, u32_t opt_len);
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bool dhcp_search_ip_on_mac(u8_t *mac, ip4_addr_t *ip);
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void dhcps_dns_setserver(const ip_addr_t *dnsserver);
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ip4_addr_t dhcps_dns_getserver(void);
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void dhcps_set_new_lease_cb(dhcps_cb_t cb);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __DHCPS_H__ */
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