Messages in this thread | | | From | Matthias May <> | Subject | [PATCH 0/4 net-next] Allow to inherit from VLAN encapsulated IP | Date | Mon, 11 Jul 2022 11:17:18 +0200 |
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Currently IPv4 and IPv6 tunnels are able to inherit IP header fields like TOS, TTL or the DF from their payload, when the payload is IPv4 or IPv6. Some types of tunnels, like GRETAP or VXLAN are able to carry VLANs. The visible skb->protocol shows in this case as protocol ETH_P_8021Q or ETH_P_8021AD. However all the relevant structures for IP payload are correct and just need to be used.
Patch 1 allows tunnels with IPv4 as outer header to inherit from VLAN encapsulated payload. Patch 2 fixes a bug, where the DSCP for tunnels with IPv6 as outer header is never set. Patch 3 allows tunnels with IPv6 as outer header to inherit the TTL from VLAN encapsulated payload. Patch 4 allows IP6GRETAP tunnels with IPv6 as outer header to inherit the TOS from VLAN encapsulated payload.
Matthias May (4): ip_tunnel: allow to inherit from VLAN encapsulated IP ip6_gre: set DSCP for non-IP ip6_gre: use actual protocol to select xmit ip6_tunnel: allow to inherit from VLAN encapsulated IP
net/ipv4/ip_tunnel.c | 17 +++++++++-------- net/ipv6/ip6_gre.c | 43 +++++++++++++++++++++++++++++++++++-------- net/ipv6/ip6_tunnel.c | 11 +++++++---- 3 files changed, 51 insertions(+), 20 deletions(-)
-- 2.35.1
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