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2021-05-26nat: add thread index assertionsKlement Sekera1-0/+2
Add extra assertions to debug build. Type: improvement Signed-off-by: Klement Sekera <ksekera@cisco.com> Change-Id: Ib20130365e8f9dbb556fcbb4321dd184c7eff603
2021-04-20nat: nat44-ed i2o & o2i trace fixFilip Varga1-4/+5
If cache used than we don't print in trace session index. Type: fix Change-Id: Ib965cd8632b5217f8b2dd8b6cc6af3286c747582 Signed-off-by: Filip Varga <fivarga@cisco.com>
2021-03-09nat: fix dst nat thread issuesKlement Sekera1-21/+59
Make sure packet lands on the right thread for dst nat case. Type: fix Signed-off-by: Klement Sekera <ksekera@cisco.com> Change-Id: I0ec4e4c2bb3fa80ff73fac588c36d36420ba68fa
2021-03-07nat: replace main vlib with per-thread vlibKlement Sekera1-23/+24
Fix incorrect vlib main usage. Type: fix Signed-off-by: Klement Sekera <ksekera@cisco.com> Change-Id: Ic5304ca844f1b27756818eb6995b1d9c08412674
2021-03-07nat: fix worker selectionKlement Sekera1-14/+13
Use correct ports from SVR. Perform lookup of existing session for all cases to pick any created bypasses and derive correct thread indexes. Type: fix Change-Id: I1e3814c9e13cd4d9b8d65f514f7e9ab42df3c22e Signed-off-by: Klement Sekera <ksekera@cisco.com>
2021-03-01nat: pick outside addr based on local addrKlement Sekera1-71/+92
Use outside addresses more evenly by using local address to pick from pool of addresses. This ensures stability from POV of remote host - an internal host always gets translated using the same outside address, so it doesn't appear to be "hopping". Also, this avoids all hosts being translated using the first address, which helps avoid needless recaptchas and the like. Exact assignment depends on internal ordering of addresses - local address is used to pick an offset into internal vector. If that address cannot be used, a linear search is performed as a fallback mechanism to find a possible translation. Type: improvement Signed-off-by: Klement Sekera <ksekera@cisco.com> Change-Id: I7ccb1da1dda5537f5d30d2f4cb48024f4b51c1a4
2021-02-26nat: optimize flow matching in ED NATKlement Sekera1-31/+38
This saves 6 clocks in nat44-ed-in2out node. (112->106 per packet) Type: improvement Signed-off-by: Klement Sekera <ksekera@cisco.com> Change-Id: I48e757e7f4b6b0d250a432a4659fe6955fc52a07
2021-02-24nat: Final NAT44 EI/ED split patchFilip Varga1-0/+1579
This patch achieves complete separation of endpoint-dependent and endpoint-independent IPv4 NAT features. Some common stuff is also moved to NAT library. Type: refactor Change-Id: I52468b7e2b5ac28958a2baf8e2ea01787322e801 Signed-off-by: Filip Varga <fivarga@cisco.com>