"martian source" mixes up source and destination

[Mantas M.]

After enabling the /proc/sys/net/ipv4/conf/all/log_martians sysctl, I've
been receiving the following messages on dmesg:

> martian source 255.255.255.255 from 192.168.1.115, on dev wlan0
> ll header: ff:ff:ff:ff:ff:ff:f4:6d:04:85:fc:d7:08:00
> martian source 192.168.1.255 from 192.168.1.115, on dev wlan0
> ll header: ff:ff:ff:ff:ff:ff:f4:6d:04:85:fc:d7:08:00
> martian source 192.168.1.255 from 192.168.1.115, on dev wlan0
> ll header: ff:ff:ff:ff:ff:ff:f4:6d:04:85:fc:d7:08:00
> <later>
> martian source 255.255.255.255 from 192.168.1.183, on dev eth0
> ll header: ff:ff:ff:ff:ff:ff:48:5d:60:e8:65:8f:08:00

However, the packets are *not* martians, but legitimate broadcast
UDP/IPv4 packets: they have the *destination* as 255.255.255.255 or
192.168.1.255, with the source being 192.168.1.115 (wlan0 on this
device) for the first three packets, and 192.168.1.183 (eth0) on the
fourth.

Linux 3.3.4-1-ARCH on Arch Linux

-- 
Mantas M. <grawity@xxxxxxxxx>

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