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ip6/icmp/ndp/ra.cpp@47:73af5c0b0dc2, 2017-10-26 (annotated)

Committer:
andrewboyson
Date:
Thu Oct 26 14:50:24 2017 +0000
Revision:
47:73af5c0b0dc2
Parent:
46:40d33e9037e4 
Replaced a number of temporary buffers with direct writes to the Log or HTTP.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
andrewboyson 46:40d33e9037e4 1 #include "mbed.h"
andrewboyson 46:40d33e9037e4 2 #include "log.h"
andrewboyson 46:40d33e9037e4 3 #include "clock.h"
andrewboyson 46:40d33e9037e4 4 #include "net.h"
andrewboyson 46:40d33e9037e4 5 #include "action.h"
andrewboyson 46:40d33e9037e4 6 #include "ip6.h"
andrewboyson 46:40d33e9037e4 7 #include "mac.h"
andrewboyson 46:40d33e9037e4 8 #include "slaac.h"
andrewboyson 46:40d33e9037e4 9 #include "ndp.h"
andrewboyson 46:40d33e9037e4 10
andrewboyson 46:40d33e9037e4 11 bool RaTrace = false;
andrewboyson 46:40d33e9037e4 12
andrewboyson 46:40d33e9037e4 13 __packed struct header
andrewboyson 46:40d33e9037e4 14 {
andrewboyson 46:40d33e9037e4 15 uint8_t hop;
andrewboyson 46:40d33e9037e4 16 uint8_t mo;
andrewboyson 46:40d33e9037e4 17 uint16_t lifetime;
andrewboyson 46:40d33e9037e4 18 uint32_t reachable;
andrewboyson 46:40d33e9037e4 19 uint32_t retrans;
andrewboyson 46:40d33e9037e4 20 };
andrewboyson 47:73af5c0b0dc2 21 void logHeader(struct header* pHeader, char* pData, int dataLength)
andrewboyson 46:40d33e9037e4 22 {
andrewboyson 46:40d33e9037e4 23 if (NetTraceVerbose)
andrewboyson 46:40d33e9037e4 24 {
andrewboyson 46:40d33e9037e4 25 Log("RA header\r\n");
andrewboyson 46:40d33e9037e4 26 LogF(" Hop limit %d\r\n", pHeader->hop);
andrewboyson 46:40d33e9037e4 27 LogF(" M O %x\r\n", pHeader->mo);
andrewboyson 46:40d33e9037e4 28 LogF(" Lifetime %d\r\n", NetToHost16(pHeader->lifetime));
andrewboyson 46:40d33e9037e4 29 LogF(" Reachable %d\r\n", NetToHost32(pHeader->reachable));
andrewboyson 46:40d33e9037e4 30 LogF(" Retrans %d\r\n", NetToHost32(pHeader->retrans));
andrewboyson 47:73af5c0b0dc2 31 NdpLogOptionsVerbose(pData, dataLength);
andrewboyson 46:40d33e9037e4 32 }
andrewboyson 46:40d33e9037e4 33 else
andrewboyson 46:40d33e9037e4 34 {
andrewboyson 47:73af5c0b0dc2 35 Log("RA header");
andrewboyson 47:73af5c0b0dc2 36 NdpLogOptionsQuiet(pData, dataLength);
andrewboyson 47:73af5c0b0dc2 37 Log("\r\n");
andrewboyson 46:40d33e9037e4 38 }
andrewboyson 46:40d33e9037e4 39 }
andrewboyson 46:40d33e9037e4 40 int RaHandleReceivedAdvertisement(void (*traceback)(void), void* pPacket, int* pSize)
andrewboyson 46:40d33e9037e4 41 {
andrewboyson 46:40d33e9037e4 42 struct header* pHeader = (header*)pPacket;
andrewboyson 46:40d33e9037e4 43 char* pData = (char*)pHeader + sizeof(struct header);
andrewboyson 46:40d33e9037e4 44 int dataLength = *pSize - sizeof(struct header);
andrewboyson 46:40d33e9037e4 45
andrewboyson 47:73af5c0b0dc2 46 NdpHopLimit = pHeader->hop;
andrewboyson 47:73af5c0b0dc2 47 NdpManagedConfiguration = pHeader->mo & 0x80;
andrewboyson 47:73af5c0b0dc2 48 NdpOtherConfiguration = pHeader->mo & 0x40;
andrewboyson 47:73af5c0b0dc2 49 NdpLifetime = NetToHost16(pHeader->lifetime);
andrewboyson 46:40d33e9037e4 50
andrewboyson 46:40d33e9037e4 51 if (RaTrace)
andrewboyson 46:40d33e9037e4 52 {
andrewboyson 46:40d33e9037e4 53 if (NetTraceNewLine) Log("\r\n");
andrewboyson 46:40d33e9037e4 54 LogTimeF("NDP received router advertise\r\n");
andrewboyson 46:40d33e9037e4 55 if (NetTraceStack) traceback();
andrewboyson 47:73af5c0b0dc2 56 logHeader(pHeader, pData, dataLength);
andrewboyson 46:40d33e9037e4 57 }
andrewboyson 47:73af5c0b0dc2 58 NdpDecodeOptions(pData, dataLength, NdpRouterMac, NULL);
andrewboyson 46:40d33e9037e4 59
andrewboyson 46:40d33e9037e4 60 NdpElapsedTime = 0;
andrewboyson 46:40d33e9037e4 61
andrewboyson 46:40d33e9037e4 62 return DO_NOTHING;
andrewboyson 46:40d33e9037e4 63
andrewboyson 46:40d33e9037e4 64 }