A stack which works with or without an Mbed os library. Provides IPv4 or IPv6 with a full 1500 byte buffer.
Dependents: oldheating gps motorhome heating
net.cpp
- Committer:
- andrewboyson
- Date:
- 2017-01-27
- Revision:
- 2:849103b5a16d
- Parent:
- 0:faa09bd4e6bf
- Child:
- 5:5fc4ca9fbf17
File content as of revision 2:849103b5a16d:
#include "mbed.h" #include "phy.h" #include "tcp.h" #include "dhcp.h" #include "arp.h" int NetIpToString(uint32_t ip, char* text) { int a0 = (ip & 0xFF000000) >> 24; int a1 = (ip & 0x00FF0000) >> 16; int a2 = (ip & 0x0000FF00) >> 8; int a3 = (ip & 0x000000FF); return sprintf(text, "%d.%d.%d.%d", a0, a1, a2, a3); } int NetMacToString(char* mac, char* text) { return sprintf(text, "%02X:%02X:%02X:%02X:%02X:%02X", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); } int16_t NetToHost16(int16_t n) { int16_t h; char* pn = (char*)&n; char* ph = (char*)&h + 1; *ph = *pn; ph--; pn++; // 1<-0 *ph = *pn; // 0<-1 return h; } int32_t NetToHost32(int32_t n) { int32_t h; char* pn = (char*)&n; char* ph = (char*)&h + 3; *ph = *pn; ph--; pn++; // 3<-0 *ph = *pn; ph--; pn++; // 2<-1 *ph = *pn; ph--; pn++; // 1<-2 *ph = *pn; // 0<-3 return h; } int64_t NetToHost64(int64_t n) { int64_t h; char* pn = (char*)&n; char* ph = (char*)&h + 7; *ph = *pn; ph--; pn++; // 7<-0 *ph = *pn; ph--; pn++; // 6<-1 *ph = *pn; ph--; pn++; // 5<-2 *ph = *pn; ph--; pn++; // 4<-3 *ph = *pn; ph--; pn++; // 3<-4 *ph = *pn; ph--; pn++; // 2<-5 *ph = *pn; ph--; pn++; // 1<-6 *ph = *pn; // 0<-7 return h; } uint16_t onesComplement(uint16_t start, int count, void* pData) { uint32_t sum = start; //Initialise the 32 bit accumulator with the last sum uint16_t* p = (uint16_t*)pData; //Set up a 16 bit pointer for the data while(count > 1) { sum += *p++; // Add each pair of bytes into 32 bit accumulator count -= 2; } if(count) sum += * (uint8_t*) p; // Add left-over byte, if any while (sum>>16) sum = (sum & 0xffff) + (sum >> 16); // Add any carries from the sum back into the sum to make it ones complement return sum; } uint16_t NetCheckSumTwo(int count1, void* pData1, int count2, void* pData2) { uint16_t sum = onesComplement(0, count1, pData1); return ~onesComplement(sum, count2, pData2); } uint16_t NetCheckSum(int count, void* pData) { return ~onesComplement(0, count, pData); } static bool ticked() { static time_t lastT = 0; time_t thisT = time(NULL); bool oneshot = lastT != thisT; lastT = thisT; return oneshot; } int NetInit() { PhyInit(); TcpInit(); ArpInit(); return 0; } int NetMain() { PhyMain(); if (ticked()) { DhcpTick(); ArpTick(); } return 0; }