dhcpserver.h File Reference

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Data Structures
struct	dhcps_state
struct	dhcps_msg
struct	dhcps_pool
struct	_list_node

Macros
#define	USE_DNS
#define	DHCPS_LEASE_TIMER   dhcps_lease_time
#define	DHCPS_MAX_LEASE   0x64
#define	BOOTP_BROADCAST   0x8000
#define	DHCP_REQUEST   1
#define	DHCP_REPLY   2
#define	DHCP_HTYPE_ETHERNET   1
#define	DHCP_HLEN_ETHERNET   6
#define	DHCP_MSG_LEN   236
#define	DHCPS_SERVER_PORT   67
#define	DHCPS_CLIENT_PORT   68
#define	DHCPDISCOVER   1
#define	DHCPOFFER   2
#define	DHCPREQUEST   3
#define	DHCPDECLINE   4
#define	DHCPACK   5
#define	DHCPNAK   6
#define	DHCPRELEASE   7
#define	DHCP_OPTION_SUBNET_MASK   1
#define	DHCP_OPTION_ROUTER   3
#define	DHCP_OPTION_DNS_SERVER   6
#define	DHCP_OPTION_REQ_IPADDR   50
#define	DHCP_OPTION_LEASE_TIME   51
#define	DHCP_OPTION_MSG_TYPE   53
#define	DHCP_OPTION_SERVER_ID   54
#define	DHCP_OPTION_INTERFACE_MTU   26
#define	DHCP_OPTION_PERFORM_ROUTER_DISCOVERY   31
#define	DHCP_OPTION_BROADCAST_ADDRESS   28
#define	DHCP_OPTION_REQ_LIST   55
#define	DHCP_OPTION_END   255
#define	DHCPS_DEBUG   0
#define	MAX_STATION_NUM   8
#define	DHCPS_STATE_OFFER   1
#define	DHCPS_STATE_DECLINE   2
#define	DHCPS_STATE_ACK   3
#define	DHCPS_STATE_NAK   4
#define	DHCPS_STATE_IDLE   5
#define	DHCPS_STATE_RELEASE   6
#define	dhcps_router_enabled(offer)   ((offer & OFFER_ROUTER) != 0)

Typedefs
typedef struct dhcps_state	dhcps_state
typedef struct dhcps_msg	dhcps_msg
typedef struct _list_node	list_node

Functions
void	dhcps_start (struct ip_info *info)
void	dhcps_stop (void)
void	dhcps_set_DNS (struct ip_addr *dns_ip) ICACHE_FLASH_ATTR
struct dhcps_pool *	dhcps_get_mapping (uint16_t no) ICACHE_FLASH_ATTR
void	dhcps_set_mapping (struct ip_addr *addr, uint8 *mac, uint32 lease_time) ICACHE_FLASH_ATTR

Variables
uint32	dhcps_lease_time

Macro Definition Documentation

BOOTP_BROADCAST

#define BOOTP_BROADCAST   0x8000

Definition at line 53 of file dhcpserver.h.

Referenced by create_msg().

DHCP_HLEN_ETHERNET

#define DHCP_HLEN_ETHERNET   6

Definition at line 58 of file dhcpserver.h.

DHCP_HTYPE_ETHERNET

#define DHCP_HTYPE_ETHERNET   1

Definition at line 57 of file dhcpserver.h.

Referenced by create_msg().

DHCP_MSG_LEN

#define DHCP_MSG_LEN   236

Definition at line 59 of file dhcpserver.h.

DHCP_OPTION_BROADCAST_ADDRESS

#define DHCP_OPTION_BROADCAST_ADDRESS   28

Definition at line 81 of file dhcpserver.h.

Referenced by add_offer_options().

DHCP_OPTION_DNS_SERVER

#define DHCP_OPTION_DNS_SERVER   6

Definition at line 74 of file dhcpserver.h.

Referenced by add_offer_options().

DHCP_OPTION_END

#define DHCP_OPTION_END   255

Definition at line 83 of file dhcpserver.h.

Referenced by add_end(), and parse_options().

DHCP_OPTION_INTERFACE_MTU

#define DHCP_OPTION_INTERFACE_MTU   26

Definition at line 79 of file dhcpserver.h.

Referenced by add_offer_options().

DHCP_OPTION_LEASE_TIME

#define DHCP_OPTION_LEASE_TIME   51

Definition at line 76 of file dhcpserver.h.

Referenced by add_offer_options().

DHCP_OPTION_MSG_TYPE

#define DHCP_OPTION_MSG_TYPE   53

Definition at line 77 of file dhcpserver.h.

Referenced by add_msg_type(), and parse_options().

DHCP_OPTION_PERFORM_ROUTER_DISCOVERY

#define DHCP_OPTION_PERFORM_ROUTER_DISCOVERY   31

Definition at line 80 of file dhcpserver.h.

Referenced by add_offer_options().

DHCP_OPTION_REQ_IPADDR

#define DHCP_OPTION_REQ_IPADDR   50

Definition at line 75 of file dhcpserver.h.

Referenced by parse_options().

DHCP_OPTION_REQ_LIST

#define DHCP_OPTION_REQ_LIST   55

Definition at line 82 of file dhcpserver.h.

DHCP_OPTION_ROUTER

#define DHCP_OPTION_ROUTER   3

Definition at line 73 of file dhcpserver.h.

Referenced by add_offer_options().

DHCP_OPTION_SERVER_ID

#define DHCP_OPTION_SERVER_ID   54

Definition at line 78 of file dhcpserver.h.

Referenced by add_offer_options().

DHCP_OPTION_SUBNET_MASK

#define DHCP_OPTION_SUBNET_MASK   1

Definition at line 72 of file dhcpserver.h.

Referenced by add_offer_options().

DHCP_REPLY

#define DHCP_REPLY   2

Definition at line 56 of file dhcpserver.h.

Referenced by create_msg().

DHCP_REQUEST

#define DHCP_REQUEST   1

Definition at line 55 of file dhcpserver.h.

DHCPACK

#define DHCPACK   5

Definition at line 68 of file dhcpserver.h.

Referenced by send_ack().

DHCPDECLINE

#define DHCPDECLINE   4

Definition at line 67 of file dhcpserver.h.

Referenced by parse_options().

DHCPDISCOVER

#define DHCPDISCOVER   1

Definition at line 64 of file dhcpserver.h.

Referenced by parse_options().

DHCPNAK

#define DHCPNAK   6

Definition at line 69 of file dhcpserver.h.

Referenced by send_nak().

DHCPOFFER

#define DHCPOFFER   2

Definition at line 65 of file dhcpserver.h.

Referenced by send_offer().

DHCPRELEASE

#define DHCPRELEASE   7

Definition at line 70 of file dhcpserver.h.

Referenced by parse_options().

DHCPREQUEST

#define DHCPREQUEST   3

Definition at line 66 of file dhcpserver.h.

Referenced by parse_options().

DHCPS_CLIENT_PORT

#define DHCPS_CLIENT_PORT   68

Definition at line 62 of file dhcpserver.h.

Referenced by send_ack(), send_nak(), and send_offer().

DHCPS_DEBUG

#define DHCPS_DEBUG   0

Definition at line 86 of file dhcpserver.h.

DHCPS_LEASE_TIMER

#define DHCPS_LEASE_TIMER   dhcps_lease_time

Definition at line 51 of file dhcpserver.h.

Referenced by add_offer_options(), and parse_msg().

DHCPS_MAX_LEASE

#define DHCPS_MAX_LEASE   0x64

Definition at line 52 of file dhcpserver.h.

Referenced by wifi_softap_init_dhcps_lease(), and wifi_softap_set_dhcps_lease().

dhcps_router_enabled

#define dhcps_router_enabled

(

offer

)

((offer & OFFER_ROUTER) != 0)

Definition at line 96 of file dhcpserver.h.

Referenced by add_offer_options().

DHCPS_SERVER_PORT

#define DHCPS_SERVER_PORT   67

Definition at line 61 of file dhcpserver.h.

Referenced by dhcps_start().

DHCPS_STATE_ACK

#define DHCPS_STATE_ACK   3

Definition at line 91 of file dhcpserver.h.

Referenced by handle_dhcp(), and parse_options().

DHCPS_STATE_DECLINE

#define DHCPS_STATE_DECLINE   2

Definition at line 90 of file dhcpserver.h.

DHCPS_STATE_IDLE

#define DHCPS_STATE_IDLE   5

Definition at line 93 of file dhcpserver.h.

Referenced by parse_options().

DHCPS_STATE_NAK

#define DHCPS_STATE_NAK   4

Definition at line 92 of file dhcpserver.h.

Referenced by handle_dhcp(), and parse_options().

DHCPS_STATE_OFFER

#define DHCPS_STATE_OFFER   1

Definition at line 89 of file dhcpserver.h.

Referenced by handle_dhcp(), and parse_options().

DHCPS_STATE_RELEASE

#define DHCPS_STATE_RELEASE   6

Definition at line 94 of file dhcpserver.h.

Referenced by parse_msg(), and parse_options().

MAX_STATION_NUM

#define MAX_STATION_NUM   8

Definition at line 87 of file dhcpserver.h.

Referenced by dhcps_coarse_tmr().

USE_DNS

#define USE_DNS

Definition at line 4 of file dhcpserver.h.

Typedef Documentation

dhcps_msg

typedef struct dhcps_msg dhcps_msg

dhcps_state

typedef struct dhcps_state dhcps_state

list_node

typedef struct _list_node list_node

Function Documentation

dhcps_get_mapping()

struct dhcps_pool* dhcps_get_mapping

(

uint16_t

no

)

Definition at line 1160 of file dhcpserver.c.

References NULL, _list_node::pnext, and _list_node::pnode.

{
list_node *pback_node = NULL;

    for (pback_node = plist; pback_node != NULL;pback_node = pback_node->pnext, no--) {
      if (no == 0) return pback_node->pnode;
    }
    return NULL;
}

dhcps_set_DNS()

void dhcps_set_DNS

(

struct ip_addr *

dns_ip

)

Definition at line 1155 of file dhcpserver.c.

References dns_ip.

Referenced by wifi_softap_ip_config().

{
    dns_address = *dns_ip;
}

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dhcps_set_mapping()

void dhcps_set_mapping	(	struct ip_addr *	addr,
		uint8 *	mac,
		uint32	lease_time
	)

Definition at line 1170 of file dhcpserver.c.

References ip_addr::addr, dhcps_pool::ip, dhcps_pool::lease_timer, dhcps_pool::mac, node_insert_to_list(), NULL, os_memcpy, os_zalloc, _list_node::pnext, and _list_node::pnode.

{
list_node *pback_node = NULL;
list_node *pnode = NULL;
struct dhcps_pool *pdhcps_pool = NULL;

    pdhcps_pool = (struct dhcps_pool *)os_zalloc(sizeof(struct dhcps_pool));
    pdhcps_pool->ip.addr = addr->addr;
    os_memcpy(pdhcps_pool->mac, mac, sizeof(pdhcps_pool->mac));
    pdhcps_pool->lease_timer = lease_time;
    pnode = (list_node *)os_zalloc(sizeof(list_node ));
    pnode->pnode = pdhcps_pool;
    pnode->pnext = NULL;
    node_insert_to_list(&plist,pnode);
}

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dhcps_start()

void dhcps_start

(

struct ip_info *

info

)

Definition at line 886 of file dhcpserver.c.

References ip_addr::addr, broadcast_dhcps, client_address_plus, DHCPS_SERVER_PORT, eagle_lwip_getif(), handle_dhcp(), ip_info::ip, IP4_ADDR, NULL, os_printf, pcb_dhcps, server_address, dhcps_lease::start_ip, and wifi_softap_init_dhcps_lease().

{
    struct netif * apnetif = (struct netif *)eagle_lwip_getif(0x01);
    
    if(apnetif->dhcps_pcb != NULL) {
        udp_remove(apnetif->dhcps_pcb);
    }

    pcb_dhcps = udp_new();
    if (pcb_dhcps == NULL || info ==NULL) {
        os_printf("dhcps_start(): could not obtain pcb\n");
    }

    apnetif->dhcps_pcb = pcb_dhcps;

    IP4_ADDR(&broadcast_dhcps, 255, 255, 255, 255);

    server_address = info->ip;
    if (dns_address.addr == 0) {
        dns_address = server_address;
    }

    wifi_softap_init_dhcps_lease(server_address.addr);
    client_address_plus.addr = dhcps_lease.start_ip.addr;

    udp_bind(pcb_dhcps, &info->ip, DHCPS_SERVER_PORT);
    udp_recv(pcb_dhcps, handle_dhcp, NULL);
#if DHCPS_DEBUG
    os_printf("dhcps:dhcps_start->udp_recv function Set a receive callback handle_dhcp for UDP_PCB pcb_dhcps\n");
#endif
        
}

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dhcps_stop()

void dhcps_stop

(

void

)

Definition at line 919 of file dhcpserver.c.

References eagle_lwip_getif(), node_remove_from_list(), NULL, os_free, pcb_dhcps, plist, _list_node::pnext, and _list_node::pnode.

{
    struct netif * apnetif = (struct netif *)eagle_lwip_getif(0x01);

    udp_disconnect(pcb_dhcps);
//  dhcps_lease_flag = true;
    if(apnetif->dhcps_pcb != NULL) {
        udp_remove(apnetif->dhcps_pcb);
        apnetif->dhcps_pcb = NULL;
    }

    //udp_remove(pcb_dhcps);
    list_node *pnode = NULL;
    list_node *pback_node = NULL;
    pnode = plist;
    while (pnode != NULL) {
        pback_node = pnode;
        pnode = pback_node->pnext;
        node_remove_from_list(&plist, pback_node);
        os_free(pback_node->pnode);
        pback_node->pnode = NULL;
        os_free(pback_node);
        pback_node = NULL;
    }
}

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Variable Documentation

dhcps_lease_time

uint32 dhcps_lease_time

Definition at line 38 of file dhcpserver.c.

Referenced by wifi_softap_get_dhcps_lease_time(), wifi_softap_reset_dhcps_lease_time(), and wifi_softap_set_dhcps_lease_time().