tree 70191836986ab26654e6dea8474783d14f8c98d9
parent 65df7e028da2d86d9769f2ba03bdf1d110c2a44c
author Willy Tarreau <w@1wt.eu> 1682168947 +0200
committer Willy Tarreau <w@1wt.eu> 1682235975 +0200
encoding latin1

MINOR: protocol: move the global reuseport flag to the protocols

Some protocol support SO_REUSEPORT and others not. Some have such a
limitation in the kernel, and others in haproxy itself (e.g. sock_unix
cannot support multiple bindings since each one will unbind the previous
one). Also it's really protocol-dependent and not just family-dependent
because on Linux for some time it was supported for TCP and not UDP.

Let's move the definition to the protocols instead. Now it's preset in
tcp/udp/quic when SO_REUSEPORT is defined, and is otherwise left unset.
The enabled() config condition test validates IPv4 (generally sufficient),
and -dR / noreuseport all protocols at once.