flow, tcp: Generalise TCP hash table to general flow hash table
Move the data structures and helper functions for the TCP hash table to flow.c, making it a general hash table indexing sides of flows. This is largely code motion and straightforward renames. There are two semantic changes: * flow_lookup_af() now needs to verify that the entry has a matching protocol and interface as well as matching addresses and ports. * We double the size of the hash table, because it's now at least theoretically possible for both sides of each flow to be hashed. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
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Stefano Brivio

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163a339214
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acca4235c4
@@ -42,6 +42,7 @@
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#define TAPSIDE(conn_) ((conn_)->f.pif[1] == PIF_TAP)
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#define TAPFLOW(conn_) (&((conn_)->f.side[TAPSIDE(conn_)]))
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#define TAP_SIDX(conn_) (FLOW_SIDX((conn_), TAPSIDE(conn_)))
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#define CONN_V4(conn) (!!inany_v4(&TAPFLOW(conn)->faddr))
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#define CONN_V6(conn) (!CONN_V4(conn))
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