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| author | David Gibson <david@gibson.dropbear.id.au> | 2024-09-06 15:17:06 +1000 |
|---|---|---|
| committer | Stefano Brivio <sbrivio@redhat.com> | 2024-09-06 12:53:24 +0200 |
| commit | 1166401c2f2b97961bdc285b336eed912b4f8bb1 (patch) | |
| tree | 095cb89dbc43bcbb9680ec7a7fd85bfff0dffc32 /flow.h | |
| parent | 7ad9f9bd2bbda8d705e0c6faf5acf2792fce063c (diff) | |
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udp: Allow UDP flows to be prematurely closed
Unlike TCP, UDP has no in-band signalling for the end of a flow. So the
only way we remove flows is on a timer if they have no activity for 180s.
However, we've started to investigate some error conditions in which we
want to prematurely abort / abandon a UDP flow. We can call
udp_flow_close(), which will make the flow inert (sockets closed, no epoll
events, can't be looked up in hash). However it will still wait 3 minutes
to clear away the stale entry.
Clean this up by adding an explicit 'closed' flag which will cause a flow
to be more promptly cleaned up. We also publish udp_flow_close() so it
can be called from other places to abort UDP flows().
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Diffstat (limited to 'flow.h')
0 files changed, 0 insertions, 0 deletions