The branch releng/15.0 has been updated by cperciva: URL: https://cgit.FreeBSD.org/src/commit/?id=bdbb23567f8d9d4d0736927592303dfca599007e
commit bdbb23567f8d9d4d0736927592303dfca599007e Author: Michael Tuexen <[email protected]> AuthorDate: 2025-10-26 17:52:33 +0000 Commit: Colin Percival <[email protected]> CommitDate: 2025-10-30 04:21:53 +0000 udp: honor IPV6_TCLASS socket option for UDP/IPv4 packets Honor the IPPROTO_IPV6-level socket option IPV6_TCLASS when sending an UDP/IPv4 packet on an AF_INET6 socket. Approved by: re (cperciva) Reviewed by: bz, glebius Sponsored by: Netflix, Inc. Differential Revision: https://reviews.freebsd.org/D53346 (cherry picked from commit 3535546a86846ddb0ca5fe4a0689ac635b504459) (cherry picked from commit 8f5162f6fc1c8ac9abc55028561bb5b855fe61b8) --- sys/netinet/udp_usrreq.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/sys/netinet/udp_usrreq.c b/sys/netinet/udp_usrreq.c index 04d01099d54a..6ce1bcce6fc6 100644 --- a/sys/netinet/udp_usrreq.c +++ b/sys/netinet/udp_usrreq.c @@ -1172,7 +1172,19 @@ udp_send(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr, else INP_RLOCK(inp); NET_EPOCH_ENTER(et); +#ifdef INET6 + if ((flags & PRUS_IPV6) != 0) { + if ((inp->in6p_outputopts != NULL) && + (inp->in6p_outputopts->ip6po_tclass != -1)) + tos = (u_char)inp->in6p_outputopts->ip6po_tclass; + else + tos = 0; + } else { + tos = inp->inp_ip_tos; + } +#else tos = inp->inp_ip_tos; +#endif if (control != NULL) { /* * XXX: Currently, we assume all the optional information is
