Date: Tue, 2 Jul 2024 04:58:16 GMT From: Zhenlei Huang <zlei@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: d6963b9ed328 - main - if_vxlan(4): Exclude ETHER_CRC_LEN from macro VXLAN_MAX_MTU Message-ID: <202407020458.4624wGtR062889@gitrepo.freebsd.org>
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The branch main has been updated by zlei: URL: https://cgit.FreeBSD.org/src/commit/?id=d6963b9ed3287e91db3d1df153861591faff0007 commit d6963b9ed3287e91db3d1df153861591faff0007 Author: Zhenlei Huang <zlei@FreeBSD.org> AuthorDate: 2024-07-02 04:57:01 +0000 Commit: Zhenlei Huang <zlei@FreeBSD.org> CommitDate: 2024-07-02 04:57:01 +0000 if_vxlan(4): Exclude ETHER_CRC_LEN from macro VXLAN_MAX_MTU The encapsulated (original) frame does not count in FCS as per Section 5 of RFC 7348. Reviewed by: afedorov, bryanv, #network Fixes: b7592822d5de Allow set MTU more than 1500 bytes MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D45195 --- sys/net/if_vxlan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sys/net/if_vxlan.c b/sys/net/if_vxlan.c index 37f987981a0c..05430768cc73 100644 --- a/sys/net/if_vxlan.c +++ b/sys/net/if_vxlan.c @@ -97,7 +97,7 @@ struct vxlan_socket_mc_info { 60 /* Maximum IPv4 header len */ - \ sizeof(struct udphdr) - \ sizeof(struct vxlan_header) - \ - ETHER_HDR_LEN - ETHER_CRC_LEN - ETHER_VLAN_ENCAP_LEN) + ETHER_HDR_LEN - ETHER_VLAN_ENCAP_LEN) #define VXLAN_BASIC_IFCAPS (IFCAP_LINKSTATE | IFCAP_JUMBO_MTU) #define VXLAN_SO_MC_MAX_GROUPS 32
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