X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=Modules%2FIPStack%2Ficmp.c;h=de3a9db5ab606bf49fb5fe9a65957d27121389b8;hb=4f1a9b430a3fa57bbe52a6a2fe546f6fe93c389d;hp=34e6eda4f5f145df7523d1e5a23a7dcedd936f80;hpb=0df427777a3ab005eaeebc1ee4a326c8dfe91b29;p=tpg%2Facess2.git diff --git a/Modules/IPStack/icmp.c b/Modules/IPStack/icmp.c index 34e6eda4..de3a9db5 100644 --- a/Modules/IPStack/icmp.c +++ b/Modules/IPStack/icmp.c @@ -37,41 +37,56 @@ void ICMP_GetPacket(tInterface *Interface, void *Address, int Length, void *Buff { tICMPHeader *hdr = Buffer; - Log("[ICMP ] Length = %i", Length); - Log("[ICMP ] hdr->Type = %i", hdr->Type); - Log("[ICMP ] hdr->Code = %i", hdr->Code); - Log("[ICMP ] hdr->Checksum = 0x%x", ntohs(hdr->Checksum)); - Log("[ICMP ] hdr->ID = 0x%x", ntohs(hdr->ID)); - Log("[ICMP ] hdr->Sequence = 0x%x", ntohs(hdr->Sequence)); + //Log_Debug("ICMPv4", "Length = %i", Length); + Log_Debug("ICMPv4", "hdr->Type, hdr->Code = %i, %i", hdr->Type, hdr->Code); + //Log_Debug("ICMPv4", "hdr->Checksum = 0x%x", ntohs(hdr->Checksum)); + Log_Debug("ICMPv4", "hdr->ID = 0x%x", ntohs(hdr->ID)); + Log_Debug("ICMPv4", "hdr->Sequence = 0x%x", ntohs(hdr->Sequence)); switch(hdr->Type) { // -- 0: Echo Reply case ICMP_ECHOREPLY: if(hdr->Code != 0) { - Warning("[ICMP ] Code == %i for ICMP Echo Reply, should be 0", hdr->Code); + Log_Warning("ICMPv4", "Code == %i for ICMP Echo Reply, should be 0", hdr->Code); return ; } if(hdr->ID != (Uint16)~hdr->Sequence) { - Warning("[ICMP ] ID and Sequence values do not match"); - return ; + Log_Warning("ICMPv4", "ID and Sequence values do not match"); + //return ; } gICMP_PingSlots[hdr->ID].bArrived = 1; break; + // -- 3: Destination Unreachable + case ICMP_UNREACHABLE: + switch(hdr->Code) + { + case 3: // Port Unreachable + Log_Debug("ICMPv4", "Destination Unreachable (Port Unreachable)"); + break; + default: + Log_Debug("ICMPv4", "Destination Unreachable (Code %i)", hdr->Code); + break; + } +// IPv4_Unreachable( Interface, hdr->Code, htons(hdr->Length)-sizeof(tICMPHeader), hdr->Data ); + break; + // -- 8: Echo Request case ICMP_ECHOREQ: if(hdr->Code != 0) { - Warning("[ICMP ] Code == %i for ICMP Echo Request, should be 0", hdr->Code); + Log_Warning("ICMPv4", "Code == %i for ICMP Echo Request, should be 0", hdr->Code); return ; } - Log("[ICMP ] Replying"); + //Log_Debug("ICMPv4", "Replying"); hdr->Type = ICMP_ECHOREPLY; hdr->Checksum = 0; hdr->Checksum = htons( IPv4_Checksum(hdr, Length) ); - Log("[ICMP ] Checksum = 0x%04x", hdr->Checksum); + //Log_Debug("ICMPv4", "Checksum = 0x%04x", hdr->Checksum); IPv4_SendPacket(Interface, *(tIPv4*)Address, 1, ntohs(hdr->Sequence), Length, hdr); break; + default: + break; } } @@ -95,7 +110,7 @@ int ICMP_Ping(tInterface *Interface, tIPv4 Addr) { if(gICMP_PingSlots[i].Interface == NULL) break; } - if(gICMP_PingSlots[i].Interface == NULL) break; + if( i < PING_SLOTS ) break; Threads_Yield(); } gICMP_PingSlots[i].Interface = Interface; @@ -109,8 +124,7 @@ int ICMP_Ping(tInterface *Interface, tIPv4 Addr) end = ts + Interface->TimeoutDelay; while( !gICMP_PingSlots[i].bArrived && now() < end) Threads_Yield(); - ts = now() - ts; - if(ts > Interface->TimeoutDelay) + if(now() > end) return -1; return (int)ts;