1) Add pmtu handling to vti, we need it do report
pmtu informations for local generated packets.
2) The flowcache can hit an OOM condition if too
many entries are in the gc_list. Fix this by
counting the entries in the gc_list and refuse
new allocations if the value is too high.
3) The inner headers are invalid after a xfrm transformation,
so reset the skb encapsulation field ensure nobody tries
access the inner headers. Otherwise tunnel divices stacked
on top of xfrm may build the outer headers based on wrong
informations.
4) Fix recource leeks for vti4/vti6 introduced with the
pmtu handling.
Please pull or let me know if there are problems.
Thanks!
The following changes since commit aac8d3c282e024c344c5b86dc1eab7af88bb9716:
qmi_wwan: add "4G LTE usb-modem U901" (2016-02-16 20:39:32 -0500)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec.git master
for you to fetch changes up to 52717aa430949249993f1f7d570f70be863c2652:
vti: Fix recource leeks on pmtu discovery (2016-03-03 07:45:09 +0100)
----------------------------------------------------------------
Steffen Klassert (5):
vti: Add pmtu handling to vti_xmit.
flowcache: Avoid OOM condition under preasure
xfrm: Reset encapsulation field of the skb before transformation
vti6: Fix dst_entry leek on pmtu discovery
vti: Fix recource leeks on pmtu discovery
include/net/netns/xfrm.h | 1 +
net/core/flow.c | 14 +++++++++++++-
net/ipv4/ip_vti.c | 14 ++++++++++++++
net/ipv6/ip6_vti.c | 3 ++-
net/xfrm/xfrm_output.c | 3 +++
5 files changed, 33 insertions(+), 2 deletions(-)
