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child-sa: query SAD/SPD just for what we actually need to update statistics

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This commit is contained in:
Martin Willi 2013-04-21 16:50:17 +02:00
parent 470aad7e0c
commit bdaf9f97e6
1 changed files with 5 additions and 2 deletions
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7
src/libcharon/sa/child_sa.c
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@ -527,12 +527,15 @@ METHOD(child_sa_t, get_usestats, void,
private_child_sa_t *this, bool inbound,
time_t *time, u_int64_t *bytes, u_int64_t *packets)
{
if (update_usebytes(this, inbound) != FAILED)
if ((!bytes && !packets) || update_usebytes(this, inbound) != FAILED)
{
/* there was traffic since last update or the kernel interface
* does not support querying the number of usebytes.
*/
update_usetime(this, inbound);
if (time)
{
update_usetime(this, inbound);
}
}
if (time)
{