Date: Sat, 27 Sep 2025 15:13:54 GMT From: Zhenlei Huang <zlei@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: b4c6c3db0379 - stable/14 - ipfw: Teach ipfw that EtherIP is an upper layer protocol Message-ID: <202509271513.58RFDst3083057@gitrepo.freebsd.org>
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The branch stable/14 has been updated by zlei: URL: https://cgit.FreeBSD.org/src/commit/?id=b4c6c3db0379a5b3d34143325805cd7e68cf3d9a commit b4c6c3db0379a5b3d34143325805cd7e68cf3d9a Author: Zhenlei Huang <zlei@FreeBSD.org> AuthorDate: 2025-09-16 15:58:24 +0000 Commit: Zhenlei Huang <zlei@FreeBSD.org> CommitDate: 2025-09-27 15:11:35 +0000 ipfw: Teach ipfw that EtherIP is an upper layer protocol so that we do not discard EtherIP packets ( over IPv6 network ) when net.inet6.ip6.fw.deny_unknown_exthdrs is set to 1 ( which is the default value ). PR: 227450 Reviewed by: ae, #network MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D52566 (cherry picked from commit 0418e6690e91aa6c38dd9af9da43c4c5a9dc1cd2) (cherry picked from commit b1c96e54b906d0cdea0b5a9c74cc295803dfe50e) --- sys/netpfil/ipfw/ip_fw2.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/sys/netpfil/ipfw/ip_fw2.c b/sys/netpfil/ipfw/ip_fw2.c index 0e0ecd3c6b20..928ccefe4803 100644 --- a/sys/netpfil/ipfw/ip_fw2.c +++ b/sys/netpfil/ipfw/ip_fw2.c @@ -67,6 +67,7 @@ #include <net/route/nhop.h> #include <net/pfil.h> #include <net/vnet.h> +#include <net/if_gif.h> #include <net/if_pfsync.h> #include <netpfil/pf/pf_mtag.h> @@ -1717,6 +1718,12 @@ do { \ PULLUP_TO(hlen, ulp, struct ip); break; + case IPPROTO_ETHERIP: /* RFC 3378 */ + PULLUP_LEN(hlen, ulp, + sizeof(struct etherip_header) + + sizeof(struct ether_header)); + break; + case IPPROTO_PFSYNC: PULLUP_TO(hlen, ulp, struct pfsync_header); break;
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