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-rw-r--r--libopie2/opienet/opcap.cpp8
1 files changed, 6 insertions, 2 deletions
diff --git a/libopie2/opienet/opcap.cpp b/libopie2/opienet/opcap.cpp
index 4d786f5..7463320 100644
--- a/libopie2/opienet/opcap.cpp
+++ b/libopie2/opienet/opcap.cpp
@@ -724,8 +724,12 @@ OWaveLanManagementPacket::OWaveLanManagementPacket( const unsigned char* end, co
odebug << "OWaveLanManagementPacket::OWaveLanManagementPacket(): decoding frame..." << oendl;
odebug << "Detected subtype is " << managementType() << oendl;
- // grab tagged values
- const unsigned char* ptr = (const unsigned char*) (_body+1);
+ // Grab tagged values.
+ // Beacons contain a 12 byte long fixed parameters set before the tagged parameters come,
+ // Other management frames don't - which is why we have to inspect the subtype here.
+
+ const unsigned char* ptr = managementType() == "Beacon" ? (const unsigned char*) (_body+1) : (const unsigned char*) (_header+1);
+
while (ptr < end)
{
switch ( *ptr )