Fix DSCP not set on outgoing IPv4 traffic

paullouisageneau / libjuice

JUICE is a UDP Interactive Connectivity Establishment library

Mozilla Public License 2.0

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Fix DSCP not set on outgoing IPv4 traffic #158

Closed paullouisageneau closed 2 years ago

paullouisageneau commented 2 years ago

This PR fixes udp_set_diffserv() by setting IP_TOS in addition to IPV6_TCLASS on the IPv6 socket to ensure the DSCP is also set on outgoing IPv4 traffic (IPV6_V6ONLY is disabled).

Fixes https://github.com/paullouisageneau/libdatachannel/issues/654