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yaml
---
r: 25833
b: refs/heads/master
c: 2717096
h: refs/heads/master
i:
  25831: dc7b7a3
v: v3
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Jamal Hadi Salim authored and David S. Miller committed Apr 14, 2006
1 parent 8ca0598 commit aebae36
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Showing 3 changed files with 28 additions and 7 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 6c97e72a162648eaf7c401cfc139493cefa6bed2
refs/heads/master: 2717096ab41eacdbf07352dca6826b59470eb39a
8 changes: 8 additions & 0 deletions trunk/include/net/xfrm.h
Original file line number Diff line number Diff line change
Expand Up @@ -143,6 +143,11 @@ struct xfrm_state
/* Replay detection state at the time we sent the last notification */
struct xfrm_replay_state preplay;

/* internal flag that only holds state for delayed aevent at the
* moment
*/
u32 xflags;

/* Replay detection notification settings */
u32 replay_maxage;
u32 replay_maxdiff;
Expand All @@ -168,6 +173,9 @@ struct xfrm_state
void *data;
};

/* xflags - make enum if more show up */
#define XFRM_TIME_DEFER 1

enum {
XFRM_STATE_VOID,
XFRM_STATE_ACQ,
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25 changes: 19 additions & 6 deletions trunk/net/xfrm/xfrm_state.c
Original file line number Diff line number Diff line change
Expand Up @@ -805,16 +805,22 @@ void xfrm_replay_notify(struct xfrm_state *x, int event)
case XFRM_REPLAY_UPDATE:
if (x->replay_maxdiff &&
(x->replay.seq - x->preplay.seq < x->replay_maxdiff) &&
(x->replay.oseq - x->preplay.oseq < x->replay_maxdiff))
return;
(x->replay.oseq - x->preplay.oseq < x->replay_maxdiff)) {
if (x->xflags & XFRM_TIME_DEFER)
event = XFRM_REPLAY_TIMEOUT;
else
return;
}

break;

case XFRM_REPLAY_TIMEOUT:
if ((x->replay.seq == x->preplay.seq) &&
(x->replay.bitmap == x->preplay.bitmap) &&
(x->replay.oseq == x->preplay.oseq))
(x->replay.oseq == x->preplay.oseq)) {
x->xflags |= XFRM_TIME_DEFER;
return;
}

break;
}
Expand All @@ -825,8 +831,10 @@ void xfrm_replay_notify(struct xfrm_state *x, int event)
km_state_notify(x, &c);

if (x->replay_maxage &&
!mod_timer(&x->rtimer, jiffies + x->replay_maxage))
!mod_timer(&x->rtimer, jiffies + x->replay_maxage)) {
xfrm_state_hold(x);
x->xflags &= ~XFRM_TIME_DEFER;
}
}
EXPORT_SYMBOL(xfrm_replay_notify);

Expand All @@ -836,10 +844,15 @@ static void xfrm_replay_timer_handler(unsigned long data)

spin_lock(&x->lock);

if (xfrm_aevent_is_on() && x->km.state == XFRM_STATE_VALID)
xfrm_replay_notify(x, XFRM_REPLAY_TIMEOUT);
if (x->km.state == XFRM_STATE_VALID) {
if (xfrm_aevent_is_on())
xfrm_replay_notify(x, XFRM_REPLAY_TIMEOUT);
else
x->xflags |= XFRM_TIME_DEFER;
}

spin_unlock(&x->lock);
xfrm_state_put(x);
}

int xfrm_replay_check(struct xfrm_state *x, u32 seq)
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