From: Kevin Cernekee <cerne...@chromium.org> Date: Wed, 6 Dec 2017 12:12:27 -0800
> Currently, a nlmon link inside a child namespace can observe systemwide > netlink activity. Filter the traffic so that nlmon can only sniff > netlink messages from its own netns. > > Test case: > > vpnns -- bash -c "ip link add nlmon0 type nlmon; \ > ip link set nlmon0 up; \ > tcpdump -i nlmon0 -q -w /tmp/nlmon.pcap -U" & > sudo ip xfrm state add src 10.1.1.1 dst 10.1.1.2 proto esp \ > spi 0x1 mode transport \ > auth sha1 0x6162633132330000000000000000000000000000 \ > enc aes 0x00000000000000000000000000000000 > grep --binary abc123 /tmp/nlmon.pcap > > Signed-off-by: Kevin Cernekee <cerne...@chromium.org> Applied and queued up for -stable, thanks Kevin.
