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

resolve/resolve.c@200:5acbc41bf469, 2021-05-20 (annotated)

Committer:
andrewboyson
Date:
Thu May 20 14:32:52 2021 +0000
Revision:
200:5acbc41bf469
Parent:
172:9bc3c7b2cca1 
Increased number of arp entries from 20 to 30 to accommodate the number of WIZ devices plus a few incoming port 80 calls from the internet.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
andrewboyson 116:60521b29e4c9 1 #include <stdbool.h>
andrewboyson 116:60521b29e4c9 2 #include "eth.h"
andrewboyson 116:60521b29e4c9 3 #include "ar4.h"
andrewboyson 116:60521b29e4c9 4 #include "ar6.h"
andrewboyson 116:60521b29e4c9 5 #include "mac.h"
andrewboyson 172:9bc3c7b2cca1 6 #include "nr.h"
andrewboyson 116:60521b29e4c9 7 #include "ip6addr.h"
andrewboyson 116:60521b29e4c9 8
andrewboyson 116:60521b29e4c9 9 static bool resolve4(char* server, uint32_t* pip)
andrewboyson 116:60521b29e4c9 10 {
andrewboyson 116:60521b29e4c9 11 //Check if have IP, if not, then request it and stop
andrewboyson 172:9bc3c7b2cca1 12 NrNameToAddress4(server, pip);
andrewboyson 116:60521b29e4c9 13 if (!*pip)
andrewboyson 116:60521b29e4c9 14 {
andrewboyson 172:9bc3c7b2cca1 15 NrMakeRequestForAddress4FromName(server); //The request is only repeated if made after a freeze time - call as often as you want.
andrewboyson 116:60521b29e4c9 16 return false;
andrewboyson 116:60521b29e4c9 17 }
andrewboyson 116:60521b29e4c9 18
andrewboyson 116:60521b29e4c9 19 //Check if have MAC and, if not, request it and stop
andrewboyson 116:60521b29e4c9 20 char mac[6];
andrewboyson 116:60521b29e4c9 21 Ar4IpToMac(*pip, mac);
andrewboyson 116:60521b29e4c9 22 if (MacIsEmpty(mac))
andrewboyson 116:60521b29e4c9 23 {
andrewboyson 116:60521b29e4c9 24 Ar4MakeRequestForMacFromIp(*pip); //The request is only repeated if made after a freeze time - call as often as you want.
andrewboyson 116:60521b29e4c9 25 return false;
andrewboyson 116:60521b29e4c9 26 }
andrewboyson 116:60521b29e4c9 27
andrewboyson 116:60521b29e4c9 28 return true;
andrewboyson 116:60521b29e4c9 29 }
andrewboyson 116:60521b29e4c9 30 static bool resolve6(char* server, char* pip)
andrewboyson 116:60521b29e4c9 31 {
andrewboyson 116:60521b29e4c9 32 //Check if have IP, if not, then request it and stop
andrewboyson 172:9bc3c7b2cca1 33 NrNameToAddress6(server, pip);
andrewboyson 172:9bc3c7b2cca1 34 if (Ip6AddrIsEmpty(pip))
andrewboyson 116:60521b29e4c9 35 {
andrewboyson 172:9bc3c7b2cca1 36 NrMakeRequestForAddress6FromName(server); //The request is only repeated if made after a freeze time - call as often as you want.
andrewboyson 116:60521b29e4c9 37 return false;
andrewboyson 116:60521b29e4c9 38 }
andrewboyson 116:60521b29e4c9 39
andrewboyson 116:60521b29e4c9 40 //Check if have MAC and, if not, request it and stop
andrewboyson 116:60521b29e4c9 41 char mac[6];
andrewboyson 116:60521b29e4c9 42 Ar6IpToMac(pip, mac);
andrewboyson 116:60521b29e4c9 43 if (MacIsEmpty(mac))
andrewboyson 116:60521b29e4c9 44 {
andrewboyson 116:60521b29e4c9 45 Ar6MakeRequestForMacFromIp(pip); //The request is only repeated if made after a freeze time - call as often as you want.
andrewboyson 116:60521b29e4c9 46 return false;
andrewboyson 116:60521b29e4c9 47 }
andrewboyson 116:60521b29e4c9 48
andrewboyson 116:60521b29e4c9 49 return true;
andrewboyson 116:60521b29e4c9 50 }
andrewboyson 116:60521b29e4c9 51 bool Resolve(char* remoteHost, int type, uint32_t* pIp4Address, char* pIp6Address)
andrewboyson 116:60521b29e4c9 52 {
andrewboyson 172:9bc3c7b2cca1 53 if (type == ETH_IPV4) return resolve4(remoteHost, pIp4Address);
andrewboyson 172:9bc3c7b2cca1 54 if (type == ETH_IPV6) return resolve6(remoteHost, pIp6Address);
andrewboyson 116:60521b29e4c9 55 return false;
andrewboyson 116:60521b29e4c9 56 }