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  1. 16 8月, 2016 1 次提交
  3. 16 6月, 2016 1 次提交
    • E
      gre: fix error handler · e582615a
      由 Eric Dumazet 提交于 
      1) gre_parse_header() can be called from gre_err()

   At this point transport header points to ICMP header, not the inner
header.

2) We can not really change transport header as ipgre_err() will later
assume transport header still points to ICMP header (using icmp_hdr())

3) pskb_may_pull() logic in gre_parse_header() really works
  if we are interested at zone pointed by skb->data

4) As Jiri explained in commit b7f8fe25 ("gre: do not pull header in
ICMP error processing") we should not pull headers in error handler.

So this fix :

A) changes gre_parse_header() to use skb->data instead of
skb_transport_header()

B) Adds a nhs parameter to gre_parse_header() so that we can skip the
not pulled IP header from error path.
  This offset is 0 for normal receive path.

C) remove obsolete IPV6 includes
Signed-off-by: NEric Dumazet <edumazet@google.com>
Cc: Tom Herbert <tom@herbertland.com>
Cc: Maciej Żenczykowski <maze@google.com>
Cc: Jiri Benc <jbenc@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      e582615a
  5. 09 6月, 2016 2 次提交
  7. 25 5月, 2016 2 次提交
  9. 21 5月, 2016 2 次提交
  11. 13 5月, 2016 2 次提交
  13. 10 5月, 2016 4 次提交
  15. 05 5月, 2016 1 次提交
  17. 03 5月, 2016 2 次提交
  19. 17 4月, 2016 3 次提交
  21. 24 2月, 2016 1 次提交
    • B
      tunnel: Clear IPCB(skb)->opt before dst_link_failure called · 5146d1f1
      由 Bernie Harris 提交于 
      IPCB may contain data from previous layers (in the observed case the
qdisc layer). In the observed scenario, the data was misinterpreted as
ip header options, which later caused the ihl to be set to an invalid
value (<5). This resulted in an infinite loop in the mips implementation
of ip_fast_csum.

This patch clears IPCB(skb)->opt before dst_link_failure can be called for
various types of tunnels. This change only applies to encapsulated ipv4
packets.

The code introduced in 11c21a30 which clears all of IPCB has been removed
to be consistent with these changes, and instead the opt field is cleared
unconditionally in ip_tunnel_xmit. The change in ip_tunnel_xmit applies to
SIT, GRE, and IPIP tunnels.

The relevant vti, l2tp, and pptp functions already contain similar code for
clearing the IPCB.
Signed-off-by: NBernie Harris <bernie.harris@alliedtelesis.co.nz>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      5146d1f1
  23. 19 2月, 2016 1 次提交
  25. 17 2月, 2016 1 次提交
  27. 05 12月, 2015 1 次提交
  29. 01 12月, 2015 1 次提交
  31. 25 9月, 2015 1 次提交
    • M
      ip6_gre: Reduce log level in ip6gre_err() to debug · a46496ce
      由 Matt Bennett 提交于 
      Currently error log messages in ip6gre_err are printed at 'warn'
level. This is different to most other tunnel types which don't
print any messages. These log messages don't provide any information
that couldn't be deduced with networking tools. Also it can be annoying
to have one end of the tunnel go down and have the logs fill with
pointless messages such as "Path to destination invalid or inactive!".

This patch reduces the log level of these messages to 'dbg' level to
bring the visible behaviour into line with other tunnel types.
Signed-off-by: NMatt Bennett <matt.bennett@alliedtelesis.co.nz>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      a46496ce
  33. 16 9月, 2015 3 次提交
  35. 26 8月, 2015 1 次提交
  37. 01 8月, 2015 2 次提交
  39. 23 4月, 2015 1 次提交
  41. 08 4月, 2015 1 次提交
  43. 03 4月, 2015 1 次提交
  45. 01 4月, 2015 4 次提交
  47. 05 2月, 2015 1 次提交