diff options
| author | Zhenlei Huang <zlei@FreeBSD.org> | 2024-07-02 04:57:01 +0000 |
|---|---|---|
| committer | Zhenlei Huang <zlei@FreeBSD.org> | 2024-07-10 10:17:09 +0000 |
| commit | 7de38cbb5dc4d0a6de65eb562a1b066313dc756a (patch) | |
| tree | f3a5518d1d84060758879d8b1f4a9fff4e33dcd3 | |
| parent | 77362b5eb7a558d4327187bd6997df4051301059 (diff) | |
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)
| -rw-r--r-- | sys/net/if_vxlan.c | 2 |
1 files changed, 1 insertions, 1 deletions
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 |