git: 7de38cbb5dc4 - stable/14 - if_vxlan(4): Exclude ETHER_CRC_LEN from macro VXLAN_MAX_MTU
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Date: Wed, 10 Jul 2024 10:17:47 UTC
The branch stable/14 has been updated by zlei:
URL: https://cgit.FreeBSD.org/src/commit/?id=7de38cbb5dc4d0a6de65eb562a1b066313dc756a
commit 7de38cbb5dc4d0a6de65eb562a1b066313dc756a
Author: Zhenlei Huang <zlei@FreeBSD.org>
AuthorDate: 2024-07-02 04:57:01 +0000
Commit: Zhenlei Huang <zlei@FreeBSD.org>
CommitDate: 2024-07-10 10:17:09 +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
(cherry picked from commit d6963b9ed3287e91db3d1df153861591faff0007)
---
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 87648abd116b..7a8cf7acae58 100644
--- a/sys/net/if_vxlan.c
+++ b/sys/net/if_vxlan.c
@@ -98,7 +98,7 @@ 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