Mbed library for ENC28J60 Ethernet modules. Full support for TCP/IP and UDP Server, Client and HTTP server (webserver). DHCP and DNS is included.
Dependents: mBuino_ENC28_MQTT Nucleo_Web_ENC28J60 Nucleo_Web_ENC28J60_ADC Serial_over_Ethernet ... more
Library for ENC28J60 Ethernet modules.
Ported to mbed from Norbert Truchsess's UIPEthernet library for Arduino. Thank you Norbert!
- Full support for persistent (streaming) TCP/IP and UDP connections Client and Server each, ARP, ICMP, DHCP and DNS.
- Works with both Mbed OS 2 and Mbed OS 5.
Usage:
- Import the library into your project.
- Add
#include "UipEthernet.h"
tomain.cpp
- Create one instance of the UipEthernet class initialized with the MAC address you'd like to use and SPI pins of the connected Mbed board.
Example programs:
Import programWebSwitch_ENC28J60
HTTP Server serving a simple webpage which enables to remotely turn a digital output on/off. Compile, download, run and type 'IP_address/secret/' (don't forget the last '/') into your web browser and hit ENTER.
Import programHTTPServer_Echo_ENC28J60
A simple HTTP server echoing received requests. Ethernet connection is over an ENC28J60 board. Usage: Type the server's IP address into you web browser and hit <ENTER>.
Import programTcpServer_ENC28J60
Simple TCP/IP Server using the UIPEthernet library for ENC28J60 Ethernet boards.
Import programTcpClient_ENC28J60
Simple TCP/IP Client using the UIPEthernet library for ENC28J60 Ethernet boards.
Import programUdpServer_ENC28J60
Simple UDP Server using the UIPEthernet library for ENC28J60 Ethernet boards.
Import programUdpClient_ENC28J60
Simple UDP Client using the UIPEthernet library for ENC28J60 Ethernet boards.
Import programMQTT_Hello_ENC28J60
MQTT Client example program. Ethernet connection is via an ENC28J60 module.
DhcpClient.h
- Committer:
- hudakz
- Date:
- 2020-07-23
- Revision:
- 18:8d5738a6646e
- Parent:
- 11:647d53d146f1
File content as of revision 18:8d5738a6646e:
// DHCP Library v0.3 - April 25, 2009 // Author: Jordan Terrell - blog.jordanterrell.com #ifndef DHCPCLIENT_h #define DHCPCLIENT_h #include "UdpSocket.h" #include "IpAddress.h" /* DHCP state machine. */ #define STATE_DHCP_START 0 #define STATE_DHCP_DISCOVER 1 #define STATE_DHCP_REQUEST 2 #define STATE_DHCP_LEASED 3 #define STATE_DHCP_REREQUEST 4 #define STATE_DHCP_RELEASE 5 #define DHCP_FLAGSBROADCAST 0x8000 /* UDP port numbers for DHCP */ #define DHCP_SERVER_PORT 67 /* from server to client */ #define DHCP_CLIENT_PORT 68 /* from client to server */ /* DHCP message OP code */ #define DHCP_BOOTREQUEST 1 #define DHCP_BOOTREPLY 2 /* DHCP message type */ #define DHCP_DISCOVER 1 #define DHCP_OFFER 2 #define DHCP_REQUEST 3 #define DHCP_DECLINE 4 #define DHCP_ACK 5 #define DHCP_NAK 6 #define DHCP_RELEASE 7 #define DHCP_INFORM 8 #define DHCP_HTYPE10MB 1 #define DHCP_HTYPE100MB 2 #define DHCP_HLENETHERNET 6 #define DHCP_HOPS 0 #define DHCP_SECS 0 #define MAGIC_COOKIE 0x63825363 #define MAX_DHCP_OPT 16 #define HOST_NAME "ENC28J" #define DEFAULT_LEASE (900) //default lease time in seconds #define DHCP_CHECK_NONE (0) #define DHCP_CHECK_RENEW_FAIL (1) #define DHCP_CHECK_RENEW_OK (2) #define DHCP_CHECK_REBIND_FAIL (3) #define DHCP_CHECK_REBIND_OK (4) 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 }; typedef struct _RIP_MSG_FIXED { uint8_t op; uint8_t htype; uint8_t hlen; uint8_t hops; uint32_t xid; uint16_t secs; uint16_t flags; uint8_t ciaddr[4]; uint8_t yiaddr[4]; uint8_t siaddr[4]; uint8_t giaddr[4]; uint8_t chaddr[6]; } RIP_MSG_FIXED; class DhcpClient { private: uint32_t _dhcpInitialTransactionId; uint32_t _dhcpTransactionId; uint8_t _dhcpMacAddr[6]; uint8_t _dhcpLocalIp[4]; uint8_t _dhcpSubnetMask[4]; uint8_t _dhcpGatewayIp[4]; uint8_t _dhcpDhcpServerIp[4]; uint8_t _dhcpDnsServerIp[4]; uint32_t _dhcpLeaseTime; uint32_t _dhcpT1, _dhcpT2; time_t _renewInSec; time_t _rebindInSec; time_t _lastCheck; time_t _timeout; time_t _responseTimeout; time_t _secTimeout; uint8_t _dhcp_state; UdpSocket _dhcpUdpSocket; int requestDhcpLease(); void resetDhcpLease(); void presendDhcp(); void sendDhcpMessage(uint8_t, uint16_t); void printByte(char* , uint8_t); uint8_t parseDhcpResponse(time_t responseTimeout, uint32_t& transactionId); public: IpAddress getLocalIp(); IpAddress getSubnetMask(); IpAddress getGatewayIp(); IpAddress getDhcpServerIp(); IpAddress getDnsServerIp(); int begin(uint8_t* mac, unsigned long timeout = 60, unsigned long responseTimeout = 4); int checkLease(); }; #endif