iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

geneve: fix fill_info when link down

Browse Source 
[ Upstream commit fd7eafd02121d6ef501ef1a4a891e6061366c952 ]

geneve->sock4/6 were added with geneve_open and released with geneve_stop.
So when geneve link down, we will not able to show remote address and
checksum info after commit 11387fe4a98 ("geneve: fix fill_info when using
collect_metadata").

Fix this by avoid passing *_REMOTE{,6} for COLLECT_METADATA since they are
mutually exclusive, and always show UDP_ZERO_CSUM6_RX info.

Fixes: 11387fe4a98 ("geneve: fix fill_info when using collect_metadata")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Hangbin Liu 2017-11-15 09:43:09 +08:00 committed by Greg Kroah-Hartman
parent 6e9c2a05c3
commit 81a1c2d3f9
1 changed files with 10 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
drivers/net/geneve.c
View File

@ -1503,6 +1503,7 @@ static int geneve_fill_info(struct sk_buff *skb, const struct net_device *dev)
{
struct geneve_dev *geneve = netdev_priv(dev);
struct ip_tunnel_info *info = &geneve->info;
bool metadata = geneve->collect_md;
__u8 tmp_vni[3];
__u32 vni;
@ -1511,32 +1512,24 @@ static int geneve_fill_info(struct sk_buff *skb, const struct net_device *dev)
if (nla_put_u32(skb, IFLA_GENEVE_ID, vni))
goto nla_put_failure;
if (rtnl_dereference(geneve->sock4)) {
if (!metadata && ip_tunnel_info_af(info) == AF_INET) {
if (nla_put_in_addr(skb, IFLA_GENEVE_REMOTE,
info->key.u.ipv4.dst))
goto nla_put_failure;
if (nla_put_u8(skb, IFLA_GENEVE_UDP_CSUM,
!!(info->key.tun_flags & TUNNEL_CSUM)))
goto nla_put_failure;
}
#if IS_ENABLED(CONFIG_IPV6)
if (rtnl_dereference(geneve->sock6)) {
} else if (!metadata) {
if (nla_put_in6_addr(skb, IFLA_GENEVE_REMOTE6,
&info->key.u.ipv6.dst))
goto nla_put_failure;
if (nla_put_u8(skb, IFLA_GENEVE_UDP_ZERO_CSUM6_TX,
!(info->key.tun_flags & TUNNEL_CSUM)))
goto nla_put_failure;
if (nla_put_u8(skb, IFLA_GENEVE_UDP_ZERO_CSUM6_RX,
!geneve->use_udp6_rx_checksums))
goto nla_put_failure;
}
#endif
}
if (nla_put_u8(skb, IFLA_GENEVE_TTL, info->key.ttl) ||
nla_put_u8(skb, IFLA_GENEVE_TOS, info->key.tos) ||
@ -1546,10 +1539,13 @@ static int geneve_fill_info(struct sk_buff *skb, const struct net_device *dev)
if (nla_put_be16(skb, IFLA_GENEVE_PORT, info->key.tp_dst))
goto nla_put_failure;
if (geneve->collect_md) {
if (nla_put_flag(skb, IFLA_GENEVE_COLLECT_METADATA))
if (metadata && nla_put_flag(skb, IFLA_GENEVE_COLLECT_METADATA))
goto nla_put_failure;
}
if (nla_put_u8(skb, IFLA_GENEVE_UDP_ZERO_CSUM6_RX,
!geneve->use_udp6_rx_checksums))
goto nla_put_failure;
return 0;
nla_put_failure: