diff options
Diffstat (limited to 'target/linux/generic/backport-5.4/080-wireguard-0109-net-ip_tunnel-add-header_ops-for-layer-3-devices.patch')
| -rw-r--r-- | target/linux/generic/backport-5.4/080-wireguard-0109-net-ip_tunnel-add-header_ops-for-layer-3-devices.patch | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/target/linux/generic/backport-5.4/080-wireguard-0109-net-ip_tunnel-add-header_ops-for-layer-3-devices.patch b/target/linux/generic/backport-5.4/080-wireguard-0109-net-ip_tunnel-add-header_ops-for-layer-3-devices.patch deleted file mode 100644 index cfd6b1457c..0000000000 --- a/target/linux/generic/backport-5.4/080-wireguard-0109-net-ip_tunnel-add-header_ops-for-layer-3-devices.patch +++ /dev/null @@ -1,58 +0,0 @@ -From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 -From: "Jason A. Donenfeld" <Jason@zx2c4.com> -Date: Mon, 29 Jun 2020 19:06:18 -0600 -Subject: [PATCH] net: ip_tunnel: add header_ops for layer 3 devices - -commit 2606aff916854b61234bf85001be9777bab2d5f8 upstream. - -Some devices that take straight up layer 3 packets benefit from having a -shared header_ops so that AF_PACKET sockets can inject packets that are -recognized. This shared infrastructure will be used by other drivers -that currently can't inject packets using AF_PACKET. It also exposes the -parser function, as it is useful in standalone form too. - -Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> -Acked-by: Willem de Bruijn <willemb@google.com> -Signed-off-by: David S. Miller <davem@davemloft.net> -Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> ---- - include/net/ip_tunnels.h | 3 +++ - net/ipv4/ip_tunnel_core.c | 18 ++++++++++++++++++ - 2 files changed, 21 insertions(+) - ---- a/include/net/ip_tunnels.h -+++ b/include/net/ip_tunnels.h -@@ -289,6 +289,9 @@ int ip_tunnel_newlink(struct net_device - struct ip_tunnel_parm *p, __u32 fwmark); - void ip_tunnel_setup(struct net_device *dev, unsigned int net_id); - -+extern const struct header_ops ip_tunnel_header_ops; -+__be16 ip_tunnel_parse_protocol(const struct sk_buff *skb); -+ - struct ip_tunnel_encap_ops { - size_t (*encap_hlen)(struct ip_tunnel_encap *e); - int (*build_header)(struct sk_buff *skb, struct ip_tunnel_encap *e, ---- a/net/ipv4/ip_tunnel_core.c -+++ b/net/ipv4/ip_tunnel_core.c -@@ -446,3 +446,21 @@ void ip_tunnel_unneed_metadata(void) - static_branch_dec(&ip_tunnel_metadata_cnt); - } - EXPORT_SYMBOL_GPL(ip_tunnel_unneed_metadata); -+ -+/* Returns either the correct skb->protocol value, or 0 if invalid. */ -+__be16 ip_tunnel_parse_protocol(const struct sk_buff *skb) -+{ -+ if (skb_network_header(skb) >= skb->head && -+ (skb_network_header(skb) + sizeof(struct iphdr)) <= skb_tail_pointer(skb) && -+ ip_hdr(skb)->version == 4) -+ return htons(ETH_P_IP); -+ if (skb_network_header(skb) >= skb->head && -+ (skb_network_header(skb) + sizeof(struct ipv6hdr)) <= skb_tail_pointer(skb) && -+ ipv6_hdr(skb)->version == 6) -+ return htons(ETH_P_IPV6); -+ return 0; -+} -+EXPORT_SYMBOL(ip_tunnel_parse_protocol); -+ -+const struct header_ops ip_tunnel_header_ops = { .parse_protocol = ip_tunnel_parse_protocol }; -+EXPORT_SYMBOL(ip_tunnel_header_ops); |