add defines for UDP-based protocols

detect DHCP and link it into the packet chain

2 files changed, 112 insertions, 10 deletions

diff --git a/libopie2/opienet/opcap.cpp b/libopie2/opienet/opcap.cpp
index cc8ce7f..f1f2b4b 100644
--- a/libopie2/opienet/opcap.cpp
+++ b/libopie2/opienet/opcap.cpp
@@ -41,6 +41,8 @@
 #include <qsocketnotifier.h>
 #include <qobjectlist.h>
 
+#include "udp_ports.h"
+
 /*======================================================================================
  * OPacket
  *======================================================================================*/
@@ -354,6 +356,17 @@ OUDPPacket::OUDPPacket( const unsigned char* end, const struct udphdr* data, QOb
 
 {
     qDebug( "OUDPPacket::OUDPPacket(): decoding UDP header..." );
+    qDebug( "fromPort = %d", fromPort() );
+    qDebug( "  toPort = %d", toPort() );
+
+    // TODO: Make this a case or a hash if we know more udp protocols
+
+    if ( fromPort() == UDP_PORT_BOOTPS || fromPort() == UDP_PORT_BOOTPC ||
+         toPort() == UDP_PORT_BOOTPS || toPort() == UDP_PORT_BOOTPC )
+    {
+        qDebug( "seems to be part of a DHCP conversation => creating DHCP packet." );
+        new ODHCPPacket( end, (const struct dhcp_packet*) (data+1), this );
+    }
 }
 
 
@@ -364,25 +377,25 @@ OUDPPacket::~OUDPPacket()
 
 int OUDPPacket::fromPort() const
 {
-    return _udphdr->source;
+    return EXTRACT_16BITS( &_udphdr->source );
 }
 
 
 int OUDPPacket::toPort() const
 {
-    return _udphdr->dest;
+    return EXTRACT_16BITS( &_udphdr->dest );
 }
 
 
 int OUDPPacket::length() const
 {
-    return _udphdr->len;
+    return EXTRACT_16BITS( &_udphdr->len );
 }
 
 
 int OUDPPacket::checksum() const
 {
-    return _udphdr->check;
+    return EXTRACT_16BITS( &_udphdr->check );
 }
 
 
@@ -424,37 +437,37 @@ OTCPPacket::~OTCPPacket()
 
 int OTCPPacket::fromPort() const
 {
-    return _tcphdr->source;
+    return EXTRACT_16BITS( &_tcphdr->source );
 }
 
 
 int OTCPPacket::toPort() const
 {
-    return _tcphdr->dest;
+    return EXTRACT_16BITS( &_tcphdr->dest );
 }
 
 
 int OTCPPacket::seq() const
 {
-    return _tcphdr->seq;
+    return EXTRACT_16BITS( &_tcphdr->seq );
 }
 
 
 int OTCPPacket::ack() const
 {
-    return _tcphdr->ack_seq;
+    return EXTRACT_16BITS( &_tcphdr->ack_seq );
 }
 
 
 int OTCPPacket::window() const
 {
-    return _tcphdr->window;
+    return EXTRACT_16BITS( &_tcphdr->window );
 }
 
 
 int OTCPPacket::checksum() const
 {
-    return _tcphdr->check;
+    return EXTRACT_16BITS( &_tcphdr->check );
 }
 
 /*======================================================================================
diff --git a/libopie2/opienet/udp_ports.h b/libopie2/opienet/udp_ports.h
new file mode 100644
index 0000000..5e92497
--- a/dev/null
+++ b/libopie2/opienet/udp_ports.h
@@ -0,0 +1,89 @@
+/*
+ * This file has been generated by doing
+ * find . -name "*"|xargs grep -h '#define UDP_PORT' > udp_ports.h
+ * in the root directory of Ethereal 0.9.15. Cudos to the Ethereal Team.
+ * -- Michael 'Mickey' Lauer <mickeyl@handhelds.org>
+ */
+
+        #define UDP_PORT_AODV654
+#define UDP_PORT_LENGTH     2
+#define UDP_PORT_OFFSET     PARAMETER_VALUE_OFFSET
+#define UDP_PORT_RAS1 1718
+#define UDP_PORT_RAS2 1719
+        #define UDP_PORT_CPHA8116
+        #define UDP_PORT_DDTP1052
+        #define UDP_PORT_CUPS631
+        #define UDP_PORT_DLSW   2067
+        #define UDP_PORT_ISAKMP500
+#define UDP_PORT_L2TP   1701
+#define UDP_PORT_IAPP     2313
+#define UDP_PORT_HSRP   1985
+        #define UDP_PORT_SSDP           1900
+        #define UDP_PORT_TACACS49
+        #define UDP_PORT_CLDAP          389
+        #define UDP_PORT_VINES573
+        #define UDP_PORT_NBNS137
+        #define UDP_PORT_NBDGM138
+#define UDP_PORT_XYPLEX    173
+#define UDP_PORT_PIM_RP_DISC 496
+#define UDP_PORT_SLIMP3_V1    1069
+#define UDP_PORT_SLIMP3_V2    3483
+        #define UDP_PORT_RMCP   623
+        #define UDP_PORT_RMCP_SECURE664
+#define UDP_PORT_SYSLOG 514
+        #define UDP_PORT_SNMP   161
+        #define UDP_PORT_SNMP_TRAP162
+#define UDP_PORT_TFTP    69
+#define UDP_PORT_TIME    37
+        #define UDP_PORT_STUN 3478
+        #define UDP_PORT_SRVLOC427
+        #define UDP_PORT_TZSP0x9090
+        #define UDP_PORT_WCCP2048
+#define UDP_PORT_MSPROXY 1745
+#define UDP_PORT_BOOTPS  67
+#define UDP_PORT_BOOTPC  68
+#define UDP_PORT_XDMCP 177
+        #define UDP_PORT_DHCPV6_DOWNSTREAM546
+        #define UDP_PORT_DHCPV6_UPSTREAM547
+#define UDP_PORT_DNS     53
+#define UDP_PORT_MDNS    5353
+#define UDP_PORT_ICP    3130
+        #define UDP_PORT_ICQ4000
+        #define UDP_PORT_IPX    213     /* RFC 1234 */
+#define UDP_PORT_LDP 646
+#define UDP_PORT_LLC1   12000
+#define UDP_PORT_LLC2   12001
+#define UDP_PORT_LLC3   12002
+#define UDP_PORT_LLC4   12003
+#define UDP_PORT_LLC5   12004
+#define UDP_PORT_MIP    434
+        #define UDP_PORT_NCP    524
+        #define UDP_PORT_NTP123
+#define UDP_PORT_RIP    520
+        #define UDP_PORT_SAP9875
+#define UDP_PORT_SIP 5060
+        #define UDP_PORT_TIMED525
+#define UDP_PORT_RIPNG  521
+        #define UDP_PORT_WSP                    9200            /* wap-wsp              */
+        #define UDP_PORT_WTP_WSP                9201            /* wap-wsp-wtp  */
+        #define UDP_PORT_WTLS_WSP               9202            /* wap-wsp-s    */
+        #define UDP_PORT_WTLS_WTP_WSP           9203            /* wap-wsp-wtp-s*/
+        #define UDP_PORT_WSP_PUSH               2948            /* wap-wsp      */
+        #define UDP_PORT_WTLS_WSP_PUSH          2949            /* wap-wsp-s    */
+#define UDP_PORT_WHO    513
+        #define UDP_PORT_KERBEROS       88
+#define UDP_PORT_SFLOW 6343
+#define UDP_PORT_LAPLINK 1547
+        #define UDP_PORT_NETFLOW2055
+        #define UDP_PORT_RX_LOW         7000
+        #define UDP_PORT_RX_HIGH7009
+        #define UDP_PORT_RX_AFS_BACKUPS7021
+#define UDP_PORT_MGCP_GATEWAY 2427
+#define UDP_PORT_MGCP_CALLAGENT 2727
+#define UDP_PORT_PCLI 9000
+#define UDP_PORT_ARTNET 0x1936
+#define UDP_PORT_TERREDO 3544
+        #define UDP_PORT_RADIUS         1645
+        #define UDP_PORT_RADIUS_NEW1812
+        #define UDP_PORT_RADACCT1646
+        #define UDP_PORT_RADACCT_NEW1813