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authorLorenzo Bianconi <lorenzo.bianconi@redhat.com>2019-02-15 15:10:32 +0100
committerDavid S. Miller <davem@davemloft.net>2019-02-15 20:14:25 -0800
commit4974d5f678abb34401558559d47e2ea3d1c15cba (patch)
treefc86fe3707eaedbd1dfb5337605d5dab03c63b12 /net
parenta31687e85a36c8f72b49f3d0714922c8583d0a0b (diff)
net: ip6_gre: initialize erspan_ver just for erspan tunnels
After commit c706863bc890 ("net: ip6_gre: always reports o_key to userspace"), ip6gre and ip6gretap tunnels started reporting TUNNEL_KEY output flag even if it is not configured. ip6gre_fill_info checks erspan_ver value to add TUNNEL_KEY for erspan tunnels, however in commit 84581bdae9587 ("erspan: set erspan_ver to 1 by default when adding an erspan dev") erspan_ver is initialized to 1 even for ip6gre or ip6gretap Fix the issue moving erspan_ver initialization in a dedicated routine Fixes: c706863bc890 ("net: ip6_gre: always reports o_key to userspace") Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Reviewed-by: Greg Rose <gvrose8192@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv6/ip6_gre.c34
1 files changed, 20 insertions, 14 deletions
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index 801a9a0c217e..43890898b0b5 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -1719,6 +1719,24 @@ static int ip6erspan_tap_validate(struct nlattr *tb[], struct nlattr *data[],
return 0;
}
+static void ip6erspan_set_version(struct nlattr *data[],
+ struct __ip6_tnl_parm *parms)
+{
+ parms->erspan_ver = 1;
+ if (data[IFLA_GRE_ERSPAN_VER])
+ parms->erspan_ver = nla_get_u8(data[IFLA_GRE_ERSPAN_VER]);
+
+ if (parms->erspan_ver == 1) {
+ if (data[IFLA_GRE_ERSPAN_INDEX])
+ parms->index = nla_get_u32(data[IFLA_GRE_ERSPAN_INDEX]);
+ } else if (parms->erspan_ver == 2) {
+ if (data[IFLA_GRE_ERSPAN_DIR])
+ parms->dir = nla_get_u8(data[IFLA_GRE_ERSPAN_DIR]);
+ if (data[IFLA_GRE_ERSPAN_HWID])
+ parms->hwid = nla_get_u16(data[IFLA_GRE_ERSPAN_HWID]);
+ }
+}
+
static void ip6gre_netlink_parms(struct nlattr *data[],
struct __ip6_tnl_parm *parms)
{
@@ -1767,20 +1785,6 @@ static void ip6gre_netlink_parms(struct nlattr *data[],
if (data[IFLA_GRE_COLLECT_METADATA])
parms->collect_md = true;
-
- parms->erspan_ver = 1;
- if (data[IFLA_GRE_ERSPAN_VER])
- parms->erspan_ver = nla_get_u8(data[IFLA_GRE_ERSPAN_VER]);
-
- if (parms->erspan_ver == 1) {
- if (data[IFLA_GRE_ERSPAN_INDEX])
- parms->index = nla_get_u32(data[IFLA_GRE_ERSPAN_INDEX]);
- } else if (parms->erspan_ver == 2) {
- if (data[IFLA_GRE_ERSPAN_DIR])
- parms->dir = nla_get_u8(data[IFLA_GRE_ERSPAN_DIR]);
- if (data[IFLA_GRE_ERSPAN_HWID])
- parms->hwid = nla_get_u16(data[IFLA_GRE_ERSPAN_HWID]);
- }
}
static int ip6gre_tap_init(struct net_device *dev)
@@ -2203,6 +2207,7 @@ static int ip6erspan_newlink(struct net *src_net, struct net_device *dev,
int err;
ip6gre_netlink_parms(data, &nt->parms);
+ ip6erspan_set_version(data, &nt->parms);
ign = net_generic(net, ip6gre_net_id);
if (nt->parms.collect_md) {
@@ -2248,6 +2253,7 @@ static int ip6erspan_changelink(struct net_device *dev, struct nlattr *tb[],
if (IS_ERR(t))
return PTR_ERR(t);
+ ip6erspan_set_version(data, &p);
ip6gre_tunnel_unlink_md(ign, t);
ip6gre_tunnel_unlink(ign, t);
ip6erspan_tnl_change(t, &p, !tb[IFLA_MTU]);