Andrew Boyson / net

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@30:e34173b7585c, 2017-08-10 (annotated)

Committer:
andrewboyson
Date:
Thu Aug 10 17:45:37 2017 +0000
Revision:
30:e34173b7585c
Parent:
29:39277bf2003d
Child:
35:93c39d260a83
Added dns address request - only name requests was there before.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
andrewboyson 7:b794780e33b4 1 #include "mbed.h"
andrewboyson 7:b794780e33b4 2 #include "phy.h"
andrewboyson 7:b794780e33b4 3 #include "net.h"
andrewboyson 7:b794780e33b4 4 #include "tcp.h"
andrewboyson 7:b794780e33b4 5 #include "dhcp.h"
andrewboyson 9:91dae5300a4d 6 #include "ar.h"
andrewboyson 30:e34173b7585c 7 #include "dnscache.h"
andrewboyson 7:b794780e33b4 8 #include "dns.h"
andrewboyson 7:b794780e33b4 9 #include "slaac.h"
andrewboyson 29:39277bf2003d 10 #include "ra.h"
andrewboyson 22:914b970356f0 11 #include "ntp.h"
andrewboyson 22:914b970356f0 12 #include "io.h"
andrewboyson 22:914b970356f0 13 #include "clock.h"
andrewboyson 2:849103b5a16d 14
andrewboyson 10:f0854784e960 15 char* NetName;
andrewboyson 10:f0854784e960 16
andrewboyson 0:faa09bd4e6bf 17 int16_t NetToHost16(int16_t n)
andrewboyson 0:faa09bd4e6bf 18 {
andrewboyson 0:faa09bd4e6bf 19 int16_t h;
andrewboyson 0:faa09bd4e6bf 20
andrewboyson 0:faa09bd4e6bf 21 char* pn = (char*)&n;
andrewboyson 0:faa09bd4e6bf 22 char* ph = (char*)&h + 1;
andrewboyson 0:faa09bd4e6bf 23
andrewboyson 0:faa09bd4e6bf 24 *ph = *pn; ph--; pn++; // 1<-0
andrewboyson 0:faa09bd4e6bf 25 *ph = *pn; // 0<-1
andrewboyson 0:faa09bd4e6bf 26
andrewboyson 0:faa09bd4e6bf 27 return h;
andrewboyson 0:faa09bd4e6bf 28 }
andrewboyson 0:faa09bd4e6bf 29
andrewboyson 0:faa09bd4e6bf 30 int32_t NetToHost32(int32_t n)
andrewboyson 0:faa09bd4e6bf 31 {
andrewboyson 0:faa09bd4e6bf 32 int32_t h;
andrewboyson 0:faa09bd4e6bf 33
andrewboyson 0:faa09bd4e6bf 34 char* pn = (char*)&n;
andrewboyson 0:faa09bd4e6bf 35 char* ph = (char*)&h + 3;
andrewboyson 0:faa09bd4e6bf 36
andrewboyson 0:faa09bd4e6bf 37 *ph = *pn; ph--; pn++; // 3<-0
andrewboyson 0:faa09bd4e6bf 38 *ph = *pn; ph--; pn++; // 2<-1
andrewboyson 0:faa09bd4e6bf 39 *ph = *pn; ph--; pn++; // 1<-2
andrewboyson 0:faa09bd4e6bf 40 *ph = *pn; // 0<-3
andrewboyson 0:faa09bd4e6bf 41
andrewboyson 0:faa09bd4e6bf 42 return h;
andrewboyson 0:faa09bd4e6bf 43 }
andrewboyson 0:faa09bd4e6bf 44 int64_t NetToHost64(int64_t n)
andrewboyson 0:faa09bd4e6bf 45 {
andrewboyson 0:faa09bd4e6bf 46 int64_t h;
andrewboyson 0:faa09bd4e6bf 47
andrewboyson 0:faa09bd4e6bf 48 char* pn = (char*)&n;
andrewboyson 0:faa09bd4e6bf 49 char* ph = (char*)&h + 7;
andrewboyson 0:faa09bd4e6bf 50
andrewboyson 0:faa09bd4e6bf 51 *ph = *pn; ph--; pn++; // 7<-0
andrewboyson 0:faa09bd4e6bf 52 *ph = *pn; ph--; pn++; // 6<-1
andrewboyson 0:faa09bd4e6bf 53 *ph = *pn; ph--; pn++; // 5<-2
andrewboyson 0:faa09bd4e6bf 54 *ph = *pn; ph--; pn++; // 4<-3
andrewboyson 0:faa09bd4e6bf 55 *ph = *pn; ph--; pn++; // 3<-4
andrewboyson 0:faa09bd4e6bf 56 *ph = *pn; ph--; pn++; // 2<-5
andrewboyson 0:faa09bd4e6bf 57 *ph = *pn; ph--; pn++; // 1<-6
andrewboyson 0:faa09bd4e6bf 58 *ph = *pn; // 0<-7
andrewboyson 0:faa09bd4e6bf 59
andrewboyson 0:faa09bd4e6bf 60 return h;
andrewboyson 0:faa09bd4e6bf 61 }
andrewboyson 0:faa09bd4e6bf 62 uint16_t onesComplement(uint16_t start, int count, void* pData)
andrewboyson 0:faa09bd4e6bf 63 {
andrewboyson 0:faa09bd4e6bf 64 uint32_t sum = start; //Initialise the 32 bit accumulator with the last sum
andrewboyson 0:faa09bd4e6bf 65 uint16_t* p = (uint16_t*)pData; //Set up a 16 bit pointer for the data
andrewboyson 0:faa09bd4e6bf 66
andrewboyson 0:faa09bd4e6bf 67 while(count > 1)
andrewboyson 0:faa09bd4e6bf 68 {
andrewboyson 0:faa09bd4e6bf 69 sum += *p++; // Add each pair of bytes into 32 bit accumulator
andrewboyson 0:faa09bd4e6bf 70 count -= 2;
andrewboyson 0:faa09bd4e6bf 71 }
andrewboyson 0:faa09bd4e6bf 72 if(count) sum += * (uint8_t*) p; // Add left-over byte, if any
andrewboyson 0:faa09bd4e6bf 73 while (sum>>16) sum = (sum & 0xffff) + (sum >> 16); // Add any carries from the sum back into the sum to make it ones complement
andrewboyson 0:faa09bd4e6bf 74 return sum;
andrewboyson 0:faa09bd4e6bf 75 }
andrewboyson 0:faa09bd4e6bf 76 uint16_t NetCheckSumTwo(int count1, void* pData1, int count2, void* pData2)
andrewboyson 0:faa09bd4e6bf 77 {
andrewboyson 0:faa09bd4e6bf 78 uint16_t sum = onesComplement(0, count1, pData1);
andrewboyson 0:faa09bd4e6bf 79 return ~onesComplement(sum, count2, pData2);
andrewboyson 0:faa09bd4e6bf 80 }
andrewboyson 0:faa09bd4e6bf 81 uint16_t NetCheckSum(int count, void* pData)
andrewboyson 0:faa09bd4e6bf 82 {
andrewboyson 0:faa09bd4e6bf 83 return ~onesComplement(0, count, pData);
andrewboyson 0:faa09bd4e6bf 84 }
andrewboyson 2:849103b5a16d 85
andrewboyson 10:f0854784e960 86 int NetInit(char* name)
andrewboyson 2:849103b5a16d 87 {
andrewboyson 10:f0854784e960 88 NetName = name;
andrewboyson 30:e34173b7585c 89 PhyInit();
andrewboyson 30:e34173b7585c 90 TcpInit();
andrewboyson 30:e34173b7585c 91 ArInit();
andrewboyson 30:e34173b7585c 92 DnsCacheInit();
andrewboyson 30:e34173b7585c 93 SlaacInit();
andrewboyson 2:849103b5a16d 94 return 0;
andrewboyson 2:849103b5a16d 95 }
andrewboyson 2:849103b5a16d 96 int NetMain()
andrewboyson 2:849103b5a16d 97 {
andrewboyson 30:e34173b7585c 98 PhyMain();
andrewboyson 30:e34173b7585c 99 ArMain();
andrewboyson 30:e34173b7585c 100 DnsCacheMain();
andrewboyson 23:b641979389b2 101 if (ClockTicked)
andrewboyson 2:849103b5a16d 102 {
andrewboyson 30:e34173b7585c 103 DhcpTick();
andrewboyson 30:e34173b7585c 104 ArTick();
andrewboyson 30:e34173b7585c 105 DnsCacheTick();
andrewboyson 30:e34173b7585c 106 DnsTick();
andrewboyson 30:e34173b7585c 107 RaTick();
andrewboyson 30:e34173b7585c 108 NtpTick();
andrewboyson 2:849103b5a16d 109 }
andrewboyson 2:849103b5a16d 110 return 0;
andrewboyson 2:849103b5a16d 111 }