dhcpv4.c File Reference

DHCP APIs implement file. More...

#include "socket.h"
#include "dhcpv4.h"

Go to the source code of this file.

Data Structures
struct	RIP_MSG

Macros
#define	STATE_DHCPV4_INIT   0
	Initialize. More...
#define	STATE_DHCPV4_DISCOVER   1
	send DISCOVER and wait OFFER More...
#define	STATE_DHCPV4_REQUEST   2
	send REQEUST and wait ACK or NACK More...
#define	STATE_DHCPV4_LEASED   3
	ReceiveD ACK and IP leased. More...
#define	STATE_DHCPV4_REREQUEST   4
	send REQUEST for maintaining leased IP More...
#define	STATE_DHCPV4_RELEASE   5
	No use. More...
#define	STATE_DHCPV4_STOP   6
	Stop processing DHCP. More...
#define	DHCPV4_FLAGSBROADCAST   0x8000
	The broadcast value of flags in RIP_MSG. More...
#define	DHCPV4_FLAGSUNICAST   0x0000
	The unicast value of flags in RIP_MSG. More...
#define	DHCPV4_BOOTREQUEST   1
	Request Message used in op of RIP_MSG. More...
#define	DHCPV4_BOOTREPLY   2
	Reply Message used i op of RIP_MSG. More...
#define	DHCPV4_DISCOVER   1
	DISCOVER message in OPT of RIP_MSG. More...
#define	DHCPV4_OFFER   2
	OFFER message in OPT of RIP_MSG. More...
#define	DHCPV4_REQUEST   3
	REQUEST message in OPT of RIP_MSG. More...
#define	DHCPV4_DECLINE   4
	DECLINE message in OPT of RIP_MSG. More...
#define	DHCPV4_ACK   5
	ACK message in OPT of RIP_MSG. More...
#define	DHCPV4_NAK   6
	NACK message in OPT of RIP_MSG. More...
#define	DHCPV4_RELEASE   7
	RELEASE message in OPT of RIP_MSG. No use. More...
#define	DHCPV4_INFORM   8
	INFORM message in OPT of RIP_MSG. No use. More...
#define	DHCPV4_HTYPE10MB   1
	Used in type of RIP_MSG. More...
#define	DHCPV4_HTYPE100MB   2
	Used in type of RIP_MSG. More...
#define	DHCPV4_HLENETHERNET   6
	Used in hlen of RIP_MSG. More...
#define	DHCPV4_HOPS   0
	Used in hops of RIP_MSG. More...
#define	DHCPV4_SECS   0
	Used in secs of RIP_MSG. More...
#define	INFINITE_LEASETIME   0xffffffff
	Infinite lease time. More...
#define	OPT_SIZE   312
#define	RIP_MSG_SIZE   (236+OPT_SIZE)

Enumerations
enum	{   padOption = 0, subnetMask = 1, timerOffset = 2, routersOnSubnet = 3,   timeServer = 4, nameServer = 5, dns = 6, logServer = 7,   cookieServer = 8, lprServer = 9, impressServer = 10, resourceLocationServer = 11,   hostName = 12, bootFileSize = 13, meritDumpFile = 14, domainName = 15,   swapServer = 16, rootPath = 17, extentionsPath = 18, IPforwarding = 19,   nonLocalSourceRouting = 20, policyFilter = 21, maxDgramReasmSize = 22, defaultIPTTL = 23,   pathMTUagingTimeout = 24, pathMTUplateauTable = 25, ifMTU = 26, allSubnetsLocal = 27,   broadcastAddr = 28, performMaskDiscovery = 29, maskSupplier = 30, performRouterDiscovery = 31,   routerSolicitationAddr = 32, staticRoute = 33, trailerEncapsulation = 34, arpCacheTimeout = 35,   ethernetEncapsulation = 36, tcpDefaultTTL = 37, tcpKeepaliveInterval = 38, tcpKeepaliveGarbage = 39,   nisDomainName = 40, nisServers = 41, ntpServers = 42, vendorSpecificInfo = 43,   netBIOSnameServer = 44, netBIOSdgramDistServer = 45, netBIOSnodeType = 46, netBIOSscope = 47,   xFontServer = 48, xDisplayManager = 49, dhcpRequestedIPaddr = 50, dhcpIPaddrLeaseTime = 51,   dhcpOptionOverload = 52, dhcpMessageType = 53, dhcpServerIdentifier = 54, dhcpParamRequest = 55,   dhcpMsg = 56, dhcpMaxMsgSize = 57, dhcpT1value = 58, dhcpT2value = 59,   dhcpClassIdentifier = 60, dhcpClientIdentifier = 61, endOption = 255 }

Functions
void	default_ipv4_assign (void)
void	default_ipv4_update (void)
void	default_ipv4_conflict (void)
void	reg_dhcpv4_cbfunc (void(*ip_assign)(void), void(*ip_update)(void), void(*ip_conflict)(void))
void	makeDHCPV4MSG (void)
void	send_DHCPv4_DISCOVER (void)
void	send_DHCPv4_REQUEST (void)
void	send_DHCPv4_DECLINE (void)
int8_t	parseDHCPv4MSG (void)
uint8_t	DHCPv4_run (void)
void	DHCPv4_stop (void)
uint8_t	check_DHCPv4_timeout (void)
int8_t	check_DHCPv4_leasedIP (void)
void	DHCPv4_init (uint8_t s, uint8_t *buf)
void	reset_DHCPv4_timeout (void)
void	DHCPv4_time_handler (void)
void	getIPfromDHCPv4 (uint8_t *ip)
void	getGWfromDHCPv4 (uint8_t *ip)
void	getSNfromDHCPv4 (uint8_t *ip)
void	getDNSfromDHCPv4 (uint8_t *ip)
uint32_t	getDHCPv4Leasetime (void)
char	NibbleToHex (uint8_t nibble)

Variables
uint8_t	DHCPV4_SOCKET
uint8_t	DHCPV4_SIP [4]
uint8_t	DHCPV4_REAL_SIP [4]
uint8_t	OLD_allocated_ip [4] = {0, }
uint8_t	DHCPv4_allocated_ip [4] = {0, }
uint8_t	DHCPv4_allocated_gw [4] = {0, }
uint8_t	DHCPv4_allocated_sn [4] = {0, }
uint8_t	DHCPv4_allocated_dns [4] = {0, }
int8_t	dhcpv4_state = STATE_DHCPV4_INIT
int8_t	dhcpv4_retry_count = 0
uint32_t	dhcpv4_lease_time = INFINITE_LEASETIME
volatile uint32_t	dhcpv4_tick_1s = 0
uint32_t	dhcpv4_tick_next = DHCPV4_WAIT_TIME
uint32_t	DHCPV4_XID
RIP_MSG *	pDHCPv4MSG
uint8_t	HOST_NAMEv4 [] = DCHPV4_HOST_NAME
uint8_t	DHCPv4_CHADDR [6]
void(*	dhcp_ipv4_assign )(void)

Detailed Description

DHCP APIs implement file.

Processing DHCP protocol as DISCOVER, OFFER, REQUEST, ACK, NACK and DECLINE.

Version

1.1.1

Date

2019/10/08

Revision history

<2019/10/08> compare DHCP server ip address <2013/11/18> 1st Release <2012/12/20> V1.1.0 1. Optimize code 2. Add reg_dhcpv4_cbfunc() 3. Add DHCPv4_stop() 4. Integrate check_DHCPv4_state() & DHCPv4_run() to DHCPv4_run() 5. Don't care system endian 6. Add comments <2012/12/26> V1.1.1 1. Modify variable declaration: dhcpv4_tick_1s is declared volatile for code optimization

Author

Eric Jung & MidnightCow

Copyright

Copyright (c) 2013, WIZnet Co., LTD. All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

* Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of the <ORGANIZATION> nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Definition in file dhcpv4.c.

Macro Definition Documentation

STATE_DHCPV4_INIT

#define STATE_DHCPV4_INIT   0

Initialize.

Definition at line 63 of file dhcpv4.c.

STATE_DHCPV4_DISCOVER

#define STATE_DHCPV4_DISCOVER   1

send DISCOVER and wait OFFER

Definition at line 64 of file dhcpv4.c.

STATE_DHCPV4_REQUEST

#define STATE_DHCPV4_REQUEST   2

send REQEUST and wait ACK or NACK

Definition at line 65 of file dhcpv4.c.

STATE_DHCPV4_LEASED

#define STATE_DHCPV4_LEASED   3

ReceiveD ACK and IP leased.

Definition at line 66 of file dhcpv4.c.

STATE_DHCPV4_REREQUEST

#define STATE_DHCPV4_REREQUEST   4

send REQUEST for maintaining leased IP

Definition at line 67 of file dhcpv4.c.

STATE_DHCPV4_RELEASE

#define STATE_DHCPV4_RELEASE   5

No use.

Definition at line 68 of file dhcpv4.c.

STATE_DHCPV4_STOP

#define STATE_DHCPV4_STOP   6

Stop processing DHCP.

Definition at line 69 of file dhcpv4.c.

DHCPV4_FLAGSBROADCAST

#define DHCPV4_FLAGSBROADCAST   0x8000

The broadcast value of flags in RIP_MSG.

Definition at line 71 of file dhcpv4.c.

DHCPV4_FLAGSUNICAST

#define DHCPV4_FLAGSUNICAST   0x0000

The unicast value of flags in RIP_MSG.

Definition at line 72 of file dhcpv4.c.

DHCPV4_BOOTREQUEST

#define DHCPV4_BOOTREQUEST   1

Request Message used in op of RIP_MSG.

Definition at line 75 of file dhcpv4.c.

DHCPV4_BOOTREPLY

#define DHCPV4_BOOTREPLY   2

Reply Message used i op of RIP_MSG.

Definition at line 76 of file dhcpv4.c.

DHCPV4_DISCOVER

#define DHCPV4_DISCOVER   1

DISCOVER message in OPT of RIP_MSG.

Definition at line 79 of file dhcpv4.c.

DHCPV4_OFFER

#define DHCPV4_OFFER   2

OFFER message in OPT of RIP_MSG.

Definition at line 80 of file dhcpv4.c.

DHCPV4_REQUEST

#define DHCPV4_REQUEST   3

REQUEST message in OPT of RIP_MSG.

Definition at line 81 of file dhcpv4.c.

DHCPV4_DECLINE

#define DHCPV4_DECLINE   4

DECLINE message in OPT of RIP_MSG.

Definition at line 82 of file dhcpv4.c.

DHCPV4_ACK

#define DHCPV4_ACK   5

ACK message in OPT of RIP_MSG.

Definition at line 83 of file dhcpv4.c.

DHCPV4_NAK

#define DHCPV4_NAK   6

NACK message in OPT of RIP_MSG.

Definition at line 84 of file dhcpv4.c.

DHCPV4_RELEASE

#define DHCPV4_RELEASE   7

RELEASE message in OPT of RIP_MSG. No use.

Definition at line 85 of file dhcpv4.c.

DHCPV4_INFORM

#define DHCPV4_INFORM   8

INFORM message in OPT of RIP_MSG. No use.

Definition at line 86 of file dhcpv4.c.

DHCPV4_HTYPE10MB

#define DHCPV4_HTYPE10MB   1

Used in type of RIP_MSG.

Definition at line 88 of file dhcpv4.c.

DHCPV4_HTYPE100MB

#define DHCPV4_HTYPE100MB   2

Used in type of RIP_MSG.

Definition at line 89 of file dhcpv4.c.

DHCPV4_HLENETHERNET

#define DHCPV4_HLENETHERNET   6

Used in hlen of RIP_MSG.

Definition at line 91 of file dhcpv4.c.

DHCPV4_HOPS

#define DHCPV4_HOPS   0

Used in hops of RIP_MSG.

Definition at line 92 of file dhcpv4.c.

DHCPV4_SECS

#define DHCPV4_SECS   0

Used in secs of RIP_MSG.

Definition at line 93 of file dhcpv4.c.

INFINITE_LEASETIME

#define INFINITE_LEASETIME   0xffffffff

Infinite lease time.

Definition at line 95 of file dhcpv4.c.

OPT_SIZE

#define OPT_SIZE   312

Definition at line 97 of file dhcpv4.c.

RIP_MSG_SIZE

#define RIP_MSG_SIZE   (236+OPT_SIZE)

Definition at line 98 of file dhcpv4.c.

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
padOption
subnetMask
timerOffset
routersOnSubnet
timeServer
nameServer
dns
logServer
cookieServer
lprServer
impressServer
resourceLocationServer
hostName
bootFileSize
meritDumpFile
domainName
swapServer
rootPath
extentionsPath
IPforwarding
nonLocalSourceRouting
policyFilter
maxDgramReasmSize
defaultIPTTL
pathMTUagingTimeout
pathMTUplateauTable
ifMTU
allSubnetsLocal
broadcastAddr
performMaskDiscovery
maskSupplier
performRouterDiscovery
routerSolicitationAddr
staticRoute
trailerEncapsulation
arpCacheTimeout
ethernetEncapsulation
tcpDefaultTTL
tcpKeepaliveInterval
tcpKeepaliveGarbage
nisDomainName
nisServers
ntpServers
vendorSpecificInfo
netBIOSnameServer
netBIOSdgramDistServer
netBIOSnodeType
netBIOSscope
xFontServer
xDisplayManager
dhcpRequestedIPaddr
dhcpIPaddrLeaseTime
dhcpOptionOverload
dhcpMessageType
dhcpServerIdentifier
dhcpParamRequest
dhcpMsg
dhcpMaxMsgSize
dhcpT1value
dhcpT2value
dhcpClassIdentifier
dhcpClientIdentifier
endOption

Definition at line 103 of file dhcpv4.c.

Function Documentation

default_ipv4_assign()

void default_ipv4_assign

(

void

)

Referenced by default_ipv4_update(), and reg_dhcpv4_cbfunc().

default_ipv4_update()

void default_ipv4_update

(

void

)

Definition at line 265 of file dhcpv4.c.

References default_ipv4_assign(), DHCPv4_CHADDR, getSYCR0, setSHAR, setSYCR0, and SYCR0_RST.

Referenced by reg_dhcpv4_cbfunc().

default_ipv4_conflict()

void default_ipv4_conflict

(

void

)

Definition at line 275 of file dhcpv4.c.

References DHCPv4_CHADDR, getSYCR0, setSHAR, setSYCR0, and SYCR0_RST.

Referenced by reg_dhcpv4_cbfunc().

reg_dhcpv4_cbfunc()

void reg_dhcpv4_cbfunc	(	void(*)(void)	ip_assign,
		void(*)(void)	ip_update,
		void(*)(void)	ip_conflict
	)

Definition at line 284 of file dhcpv4.c.

References default_ipv4_assign(), default_ipv4_conflict(), default_ipv4_update(), and dhcp_ipv4_assign.

makeDHCPV4MSG()

void makeDHCPV4MSG

(

void

)

Definition at line 295 of file dhcpv4.c.

References RIP_MSG::chaddr, RIP_MSG::ciaddr, DHCPV4_BOOTREQUEST, DHCPv4_CHADDR, DHCPV4_FLAGSBROADCAST, DHCPV4_HLENETHERNET, DHCPV4_HOPS, DHCPV4_HTYPE10MB, DHCPV4_SECS, DHCPV4_XID, RIP_MSG::file, RIP_MSG::flags, getSHAR, RIP_MSG::giaddr, RIP_MSG::hlen, RIP_MSG::hops, RIP_MSG::htype, MAGIC_COOKIE, RIP_MSG::op, RIP_MSG::OPT, pDHCPv4MSG, RIP_MSG::secs, RIP_MSG::siaddr, RIP_MSG::sname, RIP_MSG::xid, and RIP_MSG::yiaddr.

Referenced by send_DHCPv4_DECLINE(), send_DHCPv4_DISCOVER(), and send_DHCPv4_REQUEST().

send_DHCPv4_DISCOVER()

void send_DHCPv4_DISCOVER

(

void

)

Definition at line 354 of file dhcpv4.c.

References dhcpClientIdentifier, dhcpMessageType, dhcpParamRequest, dhcpT1value, dhcpT2value, DHCPv4_CHADDR, DHCPV4_DISCOVER, DHCPV4_REAL_SIP, DHCPV4_SERVER_PORT, DHCPV4_SIP, DHCPV4_SOCKET, dns, domainName, endOption, HOST_NAMEv4, hostName, makeDHCPV4MSG(), NibbleToHex(), RIP_MSG::OPT, OPT_SIZE, pDHCPv4MSG, RIP_MSG_SIZE, routersOnSubnet, sendto(), and subnetMask.

Referenced by check_DHCPv4_timeout(), and DHCPv4_run().

send_DHCPv4_REQUEST()

void send_DHCPv4_REQUEST

(

void

)

Definition at line 427 of file dhcpv4.c.

References RIP_MSG::ciaddr, dhcpClientIdentifier, dhcpMessageType, dhcpParamRequest, dhcpRequestedIPaddr, dhcpServerIdentifier, dhcpT1value, dhcpT2value, DHCPv4_allocated_ip, DHCPv4_CHADDR, DHCPV4_FLAGSUNICAST, DHCPV4_REQUEST, DHCPV4_SERVER_PORT, DHCPV4_SIP, DHCPV4_SOCKET, dhcpv4_state, dns, domainName, endOption, RIP_MSG::flags, HOST_NAMEv4, hostName, makeDHCPV4MSG(), NibbleToHex(), RIP_MSG::OPT, OPT_SIZE, pDHCPv4MSG, performRouterDiscovery, RIP_MSG_SIZE, routersOnSubnet, sendto(), STATE_DHCPV4_LEASED, STATE_DHCPV4_REREQUEST, staticRoute, and subnetMask.

Referenced by check_DHCPv4_timeout(), and DHCPv4_run().

send_DHCPv4_DECLINE()

void send_DHCPv4_DECLINE

(

void

)

Definition at line 526 of file dhcpv4.c.

References dhcpClientIdentifier, dhcpMessageType, dhcpRequestedIPaddr, dhcpServerIdentifier, DHCPv4_allocated_ip, DHCPv4_CHADDR, DHCPV4_DECLINE, DHCPV4_FLAGSUNICAST, DHCPV4_SERVER_PORT, DHCPV4_SIP, DHCPV4_SOCKET, endOption, RIP_MSG::flags, makeDHCPV4MSG(), RIP_MSG::OPT, OPT_SIZE, pDHCPv4MSG, RIP_MSG_SIZE, and sendto().

Referenced by check_DHCPv4_leasedIP().

parseDHCPv4MSG()

int8_t parseDHCPv4MSG

(

void

)

Definition at line 586 of file dhcpv4.c.

References RIP_MSG::chaddr, dhcpIPaddrLeaseTime, dhcpMessageType, dhcpServerIdentifier, DHCPv4_allocated_dns, DHCPv4_allocated_gw, DHCPv4_allocated_sn, DHCPv4_CHADDR, dhcpv4_lease_time, DHCPV4_REAL_SIP, DHCPV4_SERVER_PORT, DHCPV4_SIP, DHCPV4_SOCKET, dns, endOption, getSn_RX_RSR(), RIP_MSG::op, padOption, pDHCPv4MSG, recvfrom(), routersOnSubnet, and subnetMask.

Referenced by DHCPv4_run().

DHCPv4_run()

uint8_t DHCPv4_run

(

void

)

Definition at line 707 of file dhcpv4.c.

References check_DHCPv4_leasedIP(), check_DHCPv4_timeout(), dhcp_ipv4_assign, DHCP_IPV4_CHANGED, DHCP_IPV4_LEASED, DHCPV4_ACK, DHCPv4_allocated_ip, DHCPV4_CLIENT_PORT, dhcpv4_lease_time, DHCPV4_NAK, DHCPV4_OFFER, dhcpv4_retry_count, DHCPV4_RUNNING, DHCPV4_SOCKET, dhcpv4_state, DHCPV4_STOPPED, dhcpv4_tick_1s, DHCPV4_XID, getSn_SR, INFINITE_LEASETIME, OLD_allocated_ip, parseDHCPv4MSG(), pDHCPv4MSG, reset_DHCPv4_timeout(), send_DHCPv4_DISCOVER(), send_DHCPv4_REQUEST(), Sn_MR_UDP, SOCK_UDP, socket(), STATE_DHCPV4_DISCOVER, STATE_DHCPV4_INIT, STATE_DHCPV4_LEASED, STATE_DHCPV4_REQUEST, STATE_DHCPV4_REREQUEST, STATE_DHCPV4_STOP, and RIP_MSG::yiaddr.

DHCPv4_stop()

void DHCPv4_stop

(

void

)

Definition at line 838 of file dhcpv4.c.

References close(), DHCPV4_SOCKET, dhcpv4_state, and STATE_DHCPV4_STOP.

check_DHCPv4_timeout()

uint8_t check_DHCPv4_timeout

(

void

)

Definition at line 844 of file dhcpv4.c.

References DHCPV4_FAILED, dhcpv4_retry_count, DHCPV4_RUNNING, dhcpv4_state, dhcpv4_tick_1s, dhcpv4_tick_next, DHCPV4_WAIT_TIME, MAX_DHCPV4_RETRY, reset_DHCPv4_timeout(), send_DHCPv4_DISCOVER(), send_DHCPv4_REQUEST(), STATE_DHCPV4_DISCOVER, STATE_DHCPV4_INIT, STATE_DHCPV4_REQUEST, and STATE_DHCPV4_REREQUEST.

Referenced by DHCPv4_run().

check_DHCPv4_leasedIP()

int8_t check_DHCPv4_leasedIP

(

void

)

Definition at line 897 of file dhcpv4.c.

References DHCPv4_allocated_ip, DHCPV4_SOCKET, dhcpv4_tick_1s, getRCR, send_DHCPv4_DECLINE(), sendto(), setRCR, and SOCKERR_TIMEOUT.

Referenced by DHCPv4_run().

DHCPv4_init()

void DHCPv4_init	(	uint8_t	s,
		uint8_t *	buf
	)

Definition at line 932 of file dhcpv4.c.

References DHCPv4_CHADDR, DHCPV4_SOCKET, dhcpv4_state, DHCPV4_XID, getSHAR, pDHCPv4MSG, reset_DHCPv4_timeout(), setGAR, setSHAR, setSIPR, and STATE_DHCPV4_INIT.

reset_DHCPv4_timeout()

void reset_DHCPv4_timeout

(

void

)

Definition at line 962 of file dhcpv4.c.

References dhcpv4_retry_count, dhcpv4_tick_1s, dhcpv4_tick_next, and DHCPV4_WAIT_TIME.

Referenced by check_DHCPv4_timeout(), DHCPv4_init(), and DHCPv4_run().

DHCPv4_time_handler()

void DHCPv4_time_handler

(

void

)

Definition at line 969 of file dhcpv4.c.

References dhcpv4_tick_1s.

getIPfromDHCPv4()

void getIPfromDHCPv4

(

uint8_t *

ip

)

Definition at line 974 of file dhcpv4.c.

References DHCPv4_allocated_ip.

getGWfromDHCPv4()

void getGWfromDHCPv4

(

uint8_t *

ip

)

Definition at line 982 of file dhcpv4.c.

References DHCPv4_allocated_gw.

getSNfromDHCPv4()

void getSNfromDHCPv4

(

uint8_t *

ip

)

Definition at line 990 of file dhcpv4.c.

References DHCPv4_allocated_sn.

getDNSfromDHCPv4()

void getDNSfromDHCPv4

(

uint8_t *

ip

)

Definition at line 998 of file dhcpv4.c.

References DHCPv4_allocated_dns.

getDHCPv4Leasetime()

uint32_t getDHCPv4Leasetime

(

void

)

Definition at line 1006 of file dhcpv4.c.

References dhcpv4_lease_time.

NibbleToHex()

char NibbleToHex

(

uint8_t

nibble

)

Definition at line 1011 of file dhcpv4.c.

Referenced by send_DHCPv4_DISCOVER(), and send_DHCPv4_REQUEST().

Variable Documentation

DHCPV4_SOCKET

uint8_t DHCPV4_SOCKET

Definition at line 193 of file dhcpv4.c.

Referenced by check_DHCPv4_leasedIP(), DHCPv4_init(), DHCPv4_run(), DHCPv4_stop(), parseDHCPv4MSG(), send_DHCPv4_DECLINE(), send_DHCPv4_DISCOVER(), and send_DHCPv4_REQUEST().

DHCPV4_SIP

uint8_t DHCPV4_SIP[4]

Definition at line 195 of file dhcpv4.c.

Referenced by parseDHCPv4MSG(), send_DHCPv4_DECLINE(), send_DHCPv4_DISCOVER(), and send_DHCPv4_REQUEST().

DHCPV4_REAL_SIP

uint8_t DHCPV4_REAL_SIP[4]

Definition at line 196 of file dhcpv4.c.

Referenced by parseDHCPv4MSG(), and send_DHCPv4_DISCOVER().

OLD_allocated_ip

uint8_t OLD_allocated_ip[4] = {0, }

Definition at line 199 of file dhcpv4.c.

Referenced by DHCPv4_run().

DHCPv4_allocated_ip

uint8_t DHCPv4_allocated_ip[4] = {0, }

Definition at line 200 of file dhcpv4.c.

Referenced by check_DHCPv4_leasedIP(), DHCPv4_run(), getIPfromDHCPv4(), send_DHCPv4_DECLINE(), and send_DHCPv4_REQUEST().

DHCPv4_allocated_gw

uint8_t DHCPv4_allocated_gw[4] = {0, }

Definition at line 201 of file dhcpv4.c.

Referenced by getGWfromDHCPv4(), and parseDHCPv4MSG().

DHCPv4_allocated_sn

uint8_t DHCPv4_allocated_sn[4] = {0, }

Definition at line 202 of file dhcpv4.c.

Referenced by getSNfromDHCPv4(), and parseDHCPv4MSG().

DHCPv4_allocated_dns

uint8_t DHCPv4_allocated_dns[4] = {0, }

Definition at line 203 of file dhcpv4.c.

Referenced by getDNSfromDHCPv4(), and parseDHCPv4MSG().

dhcpv4_state

int8_t dhcpv4_state = STATE_DHCPV4_INIT

Definition at line 206 of file dhcpv4.c.

Referenced by check_DHCPv4_timeout(), DHCPv4_init(), DHCPv4_run(), DHCPv4_stop(), and send_DHCPv4_REQUEST().

dhcpv4_retry_count

int8_t dhcpv4_retry_count = 0

Definition at line 207 of file dhcpv4.c.

Referenced by check_DHCPv4_timeout(), DHCPv4_run(), and reset_DHCPv4_timeout().

dhcpv4_lease_time

uint32_t dhcpv4_lease_time = INFINITE_LEASETIME

Definition at line 209 of file dhcpv4.c.

Referenced by DHCPv4_run(), getDHCPv4Leasetime(), and parseDHCPv4MSG().

dhcpv4_tick_1s

volatile uint32_t dhcpv4_tick_1s = 0

Definition at line 210 of file dhcpv4.c.

Referenced by check_DHCPv4_leasedIP(), check_DHCPv4_timeout(), DHCPv4_run(), DHCPv4_time_handler(), and reset_DHCPv4_timeout().

dhcpv4_tick_next

uint32_t dhcpv4_tick_next = DHCPV4_WAIT_TIME

Definition at line 211 of file dhcpv4.c.

Referenced by check_DHCPv4_timeout(), and reset_DHCPv4_timeout().

DHCPV4_XID

uint32_t DHCPV4_XID

Definition at line 213 of file dhcpv4.c.

Referenced by DHCPv4_init(), DHCPv4_run(), and makeDHCPV4MSG().

pDHCPv4MSG

RIP_MSG* pDHCPv4MSG

Definition at line 215 of file dhcpv4.c.

Referenced by DHCPv4_init(), DHCPv4_run(), makeDHCPV4MSG(), parseDHCPv4MSG(), send_DHCPv4_DECLINE(), send_DHCPv4_DISCOVER(), and send_DHCPv4_REQUEST().

HOST_NAMEv4

uint8_t HOST_NAMEv4[] = DCHPV4_HOST_NAME

Definition at line 217 of file dhcpv4.c.

Referenced by send_DHCPv4_DISCOVER(), and send_DHCPv4_REQUEST().

DHCPv4_CHADDR

uint8_t DHCPv4_CHADDR[6]

Definition at line 219 of file dhcpv4.c.

Referenced by default_ipv4_conflict(), default_ipv4_update(), DHCPv4_init(), makeDHCPV4MSG(), parseDHCPv4MSG(), send_DHCPv4_DECLINE(), send_DHCPv4_DISCOVER(), and send_DHCPv4_REQUEST().

dhcp_ipv4_assign

void(* dhcp_ipv4_assign) (void)

default

Definition at line 227 of file dhcpv4.c.

Referenced by DHCPv4_run(), and reg_dhcpv4_cbfunc().