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Fix DSCP tagging for dual-stack sockets on Linux

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This commit is contained in:
Cameron Gutman 2024-02-03 16:06:31 -06:00
commit be6f856840
1 changed files with 4 additions and 1 deletions
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5
src/platform/linux/misc.cpp
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@ -628,7 +628,10 @@ namespace platf {
if (dscp_tagging) {
int level;
int option;
if (address.is_v6()) {
// With dual-stack sockets, Linux uses IPV6_TCLASS for IPv6 traffic
// and IP_TOS for IPv4 traffic.
if (address.is_v6() && !address.to_v6().is_v4_mapped()) {
level = SOL_IPV6;
option = IPV6_TCLASS;
}