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xfrm: Fix state threshold configuration from userspace 

Allow to change the replay threshold (XFRMA_REPLAY_THRESH) and expiry
timer (XFRMA_ETIMER_THRESH) of a state without having to set other
attributes like replay counter and byte lifetime. Changing these other
values while traffic flows will break the state.

Signed-off-by: Michael Rossberg <michael.rossberg@tu-ilmenau.de>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
steinar/wifi_calib_4_9_kernel
Michael Rossberg 2015-09-29 11:25:08 +02:00 committed by Steffen Klassert
parent 04a6b8bfee
commit 4e077237cf
1 changed files with 3 additions and 1 deletions
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4
net/xfrm/xfrm_user.c
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@ -1928,8 +1928,10 @@ static int xfrm_new_ae(struct sk_buff *skb, struct nlmsghdr *nlh,
struct nlattr *rp = attrs[XFRMA_REPLAY_VAL];
struct nlattr *re = attrs[XFRMA_REPLAY_ESN_VAL];
struct nlattr *lt = attrs[XFRMA_LTIME_VAL];
struct nlattr *et = attrs[XFRMA_ETIMER_THRESH];
struct nlattr *rt = attrs[XFRMA_REPLAY_THRESH];
if (!lt && !rp && !re)
if (!lt && !rp && !re && !et && !rt)
return err;
/* pedantic mode - thou shalt sayeth replaceth */