X-Git-Url: http://g0dil.de/git?a=blobdiff_plain;f=Packets%2FDefaultBundle%2FUDPPacket.cc;h=a985f24b4ec47ba9a9b3370d1eafcbdbf9f7bfaf;hb=e375d44dd7db1d9c27c3d788dc3ccdbfa9d68ce8;hp=892487fa7b631f4671167408e3fd01693477bea8;hpb=a1a6c76a214ad1935032826713cabaf9ac57bf07;p=senf.git

diff --git a/Packets/DefaultBundle/UDPPacket.cc b/Packets/DefaultBundle/UDPPacket.cc
index 892487f..a985f24 100644
--- a/Packets/DefaultBundle/UDPPacket.cc
+++ b/Packets/DefaultBundle/UDPPacket.cc
@@ -25,7 +25,6 @@
 
 #include "UDPPacket.hh"
 //#include "UDPPacket.ih"
-#include "IPv4Packet.hh"
 
 // Custom includes
 #include <iomanip>
@@ -50,10 +49,7 @@ prefix_ boost::uint16_t senf::UDPPacketParser::calcChecksum()
     const
 {
     IpChecksum summer;
-    summer.feed( i(), i()+checksum_offset );
-    summer.feed( i()+checksum_offset+2, data().end() );
-    
-    // Now on to the awkward part: the IP pseudo header
+    // first on to the awkward part: the IP pseudo header
     IPv4Packet ipv4 (packet().rfind<IPv4Packet>(nothrow));
     if (ipv4) {
         // Pseudo header defined in RFC768
@@ -88,6 +84,11 @@ prefix_ boost::uint16_t senf::UDPPacketParser::calcChecksum()
         }
     }
     
+    // since header are 16 / even 32bit aligned we don't have to care for padding. since IpChecksum 
+    // cares for padding at the final summing we don't have to care is the payload is 16nbit-aligned, too.
+    summer.feed( i(), i()+checksum_offset );
+    summer.feed( i()+checksum_offset+2, data().end() );
+
     boost::uint16_t rv (summer.sum());
     return rv ? rv : 0xffffu;
 }
@@ -99,11 +100,11 @@ prefix_ void senf::UDPPacketType::dump(packet p, std::ostream & os)
 {
     boost::io::ios_all_saver ias(os);
     os << "UDP:\n"
-       << "  source port   : " << p->source() << "\n"
-       << "  dest port     : " << p->destination() << "\n"
-       << "  length        : " << p->length() << "\n"
-       << "  checksum      : " 
-         << std::hex << std::setw(4) << std::setfill('0') << p->checksum() << "\n";
+       <<     "  source port             : " << p->source() << "\n"
+       <<     "  dest port               : " << p->destination() << "\n"
+       <<     "  length                  : " << p->length() << "\n"
+       <<     "  checksum                : " 
+       << std::hex << std::setw(4) << std::setfill('0') << p->checksum() << "\n";
 }
 
 prefix_ void senf::UDPPacketType::finalize(packet p)