summaryrefslogtreecommitdiffstats
path: root/drivers/net/geneve.c
diff options
context:
space:
mode:
authorJesse Gross <jesse@nicira.com>2015-10-16 16:36:00 -0700
committerDavid S. Miller <davem@davemloft.net>2015-10-18 22:44:10 -0700
commite277de5f3f7d6eed2a41920983c44c4df386b871 (patch)
treed6a592076b5ec65c773c2234d31260e1620405b8 /drivers/net/geneve.c
parent740dbc289155fdeed32438396370e70b684cd45e (diff)
downloadop-kernel-dev-e277de5f3f7d6eed2a41920983c44c4df386b871.zip
op-kernel-dev-e277de5f3f7d6eed2a41920983c44c4df386b871.tar.gz
tunnels: Don't require remote endpoint or ID during creation.
Before lightweight tunnels existed, it really didn't make sense to create a tunnel that was not fully specified, such as without a destination IP address - the resulting packets would go nowhere. However, with lightweight tunnels, the opposite is true - it doesn't make sense to require this information when it will be provided later on by the route. This loosens the requirements for this information. An alternative would be to allow the relaxed version only when COLLECT_METADATA is enabled. However, since there are several variations on this theme (such as NBMA tunnels in GRE), just dropping the restrictions seems the most consistent across tunnels and with the existing configuration. CC: John Linville <linville@tuxdriver.com> Signed-off-by: Jesse Gross <jesse@nicira.com> Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/geneve.c')
-rw-r--r--drivers/net/geneve.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c
index 8f5c02e..cde29f8 100644
--- a/drivers/net/geneve.c
+++ b/drivers/net/geneve.c
@@ -870,14 +870,14 @@ static int geneve_newlink(struct net *net, struct net_device *dev,
__be16 dst_port = htons(GENEVE_UDP_PORT);
__u8 ttl = 0, tos = 0;
bool metadata = false;
- __be32 rem_addr;
- __u32 vni;
+ __be32 rem_addr = 0;
+ __u32 vni = 0;
- if (!data[IFLA_GENEVE_ID] || !data[IFLA_GENEVE_REMOTE])
- return -EINVAL;
+ if (data[IFLA_GENEVE_ID])
+ vni = nla_get_u32(data[IFLA_GENEVE_ID]);
- vni = nla_get_u32(data[IFLA_GENEVE_ID]);
- rem_addr = nla_get_in_addr(data[IFLA_GENEVE_REMOTE]);
+ if (data[IFLA_GENEVE_REMOTE])
+ rem_addr = nla_get_in_addr(data[IFLA_GENEVE_REMOTE]);
if (data[IFLA_GENEVE_TTL])
ttl = nla_get_u8(data[IFLA_GENEVE_TTL]);
OpenPOWER on IntegriCloud