MINOR: quic: warn on bind on multiple addresses if no IP_PKTINFO support
Binding on multiple addresses for QUIC is safe only if IP_PKTINFO or
equivalent is available. Else, the behavior may be undefined as the
system is responsible to choose the network interface and source address
on response.
This commit adds a warning on boot if no or partial support for
IP_PKTINFO or equivalent is detected and configuration contains UDP
binding on multiple addresses.
This should be backported up to 2.6. Special backport recommdations :
* change ha_warning() to ha_diag_warning() to ensure no spurrious
warnings will be triggered on stable releases
* IP_PKTINFO usage was introduced on 2.7. For 2.6, multiple addresses
QUIC binding is always unreliable. As such, preprocessor condition
must simply be removed so that the warning is always active regarding
of the system. Warning message should also be truncated to suppress
IP_PKTINFO reference.
(cherry picked from commit 9b806550b79f7b8ec1f1e11a74472a6fa3379162)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
(cherry picked from commit 517421806f7891afdf641b5482031b8b6b2e603d)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
1 file changed