Bug 29613

My goal is to build a satellite link simulator, and collect all the dropped packets.

setup an ethernet bridge, then divert packets into a divert socket.  While the packets properly leave the ipfw rules, they are never delivered to the divert socket itself.

How-To-Repeat: 
updev=xl0
backdev=xl1
printsocket=6975
upbw=10Mbits/sec
uplat=50
upplr=0.2
backbw=10Mbits/sec
backlat=50
backplr=0

sysctl -w net.link.ether.bridge_cfg="$updev:1,$backdev:1,"
sysctl -w net.link.ether.bridge=1
sysctl -w net.link.ether.bridge_ipfw=1

ipfw -q flush
ipfw -q pipe flush
ipfw pipe 10 config bw $upbw delay $uplat
ipfw pipe 11 config bw $backbw delay $backlat
ipfw add 90 prob $upplr   divert $printsocket ip from any to any via $updev   in
ipfw add 91 prob $backplr divert $printsocket ip from any to any via $backdev in
ipfw add 100 pipe 10 ip from any to any via $updev in
ipfw add 101 pipe 11 ip from any to any via $backdev in

Then run something which reads packets from a divert socket.  I used http://www.bobdbob.com/~protius/software/prettyprint.c.

Then run a ping or something through the ethernet bridge.  Note that while the packets are properly matched and removed from ipfw by rules 90 and 91, they are never delivered to prettyprint.