mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-04 08:08:54 +00:00
Code Issues Releases Wiki Activity

udptunnels: Call handle_offloads after inserting vlan tag.

Browse source 
handle_offloads() calls skb_reset_inner_headers() to store
the layer pointers to the encapsulated packet. However, we
currently push the vlag tag (if there is one) onto the packet
afterwards. This changes the MAC header for the encapsulated
packet but it is not reflected in skb->inner_mac_header, which
breaks GSO and drivers which attempt to use this for encapsulation
offloads.

Fixes: 1eaa8178 ("vxlan: Add tx-vlan offload support.")
Signed-off-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jesse Gross 2015-04-09 11:19:14 -07:00 committed by David S. Miller
parent 634d8ee4de
commit b736a623bd
2 changed files with 14 additions and 14 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

20
drivers/net/vxlan.c
View file

@ -1713,12 +1713,6 @@ static int vxlan6_xmit_skb(struct dst_entry *dst, struct sk_buff *skb,
}
}
skb = iptunnel_handle_offloads(skb, udp_sum, type);
if (IS_ERR(skb)) {
err = -EINVAL;
goto err;
}
skb_scrub_packet(skb, xnet);
min_headroom = LL_RESERVED_SPACE(dst->dev) + dst->header_len
@ -1738,6 +1732,12 @@ static int vxlan6_xmit_skb(struct dst_entry *dst, struct sk_buff *skb,
goto err;
}
skb = iptunnel_handle_offloads(skb, udp_sum, type);
if (IS_ERR(skb)) {
err = -EINVAL;
goto err;
}
vxh = (struct vxlanhdr *) __skb_push(skb, sizeof(*vxh));
vxh->vx_flags = htonl(VXLAN_HF_VNI);
vxh->vx_vni = md->vni;
@ -1798,10 +1798,6 @@ int vxlan_xmit_skb(struct rtable *rt, struct sk_buff *skb,
}
}
skb = iptunnel_handle_offloads(skb, udp_sum, type);
if (IS_ERR(skb))
return PTR_ERR(skb);
min_headroom = LL_RESERVED_SPACE(rt->dst.dev) + rt->dst.header_len
+ VXLAN_HLEN + sizeof(struct iphdr)
+ (skb_vlan_tag_present(skb) ? VLAN_HLEN : 0);
@ -1817,6 +1813,10 @@ int vxlan_xmit_skb(struct rtable *rt, struct sk_buff *skb,
if (WARN_ON(!skb))
return -ENOMEM;
skb = iptunnel_handle_offloads(skb, udp_sum, type);
if (IS_ERR(skb))
return PTR_ERR(skb);
vxh = (struct vxlanhdr *) __skb_push(skb, sizeof(*vxh));
vxh->vx_flags = htonl(VXLAN_HF_VNI);
vxh->vx_vni = md->vni;

8
net/ipv4/geneve.c
View file

@ -113,10 +113,6 @@ int geneve_xmit_skb(struct geneve_sock *gs, struct rtable *rt,
int min_headroom;
int err;
skb = udp_tunnel_handle_offloads(skb, csum);
if (IS_ERR(skb))
return PTR_ERR(skb);
min_headroom = LL_RESERVED_SPACE(rt->dst.dev) + rt->dst.header_len
+ GENEVE_BASE_HLEN + opt_len + sizeof(struct iphdr)
+ (skb_vlan_tag_present(skb) ? VLAN_HLEN : 0);
@ -131,6 +127,10 @@ int geneve_xmit_skb(struct geneve_sock *gs, struct rtable *rt,
if (unlikely(!skb))
return -ENOMEM;
skb = udp_tunnel_handle_offloads(skb, csum);
if (IS_ERR(skb))
return PTR_ERR(skb);
gnvh = (struct genevehdr *)__skb_push(skb, sizeof(*gnvh) + opt_len);
geneve_build_header(gnvh, tun_flags, vni, opt_len, opt);