Alexander V. Chernikov
2e089d5c04
Make ipfw dynamic states operations SMP-ready. ...
* Global IPFW_DYN_LOCK() is changed to per-bucket mutex.
* State expiration is done in ipfw_tick every second.
* No expiration is done on forwarding path.
* hash table resize is done automatically and does not flush all states.
* Dynamic UMA zone is now allocated per each VNET
* State limiting is now done via UMA(9) api.
Discussed with: ipfw
MFC after: 3 weeks
Sponsored by: Yandex LLC
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2e089d5c04