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authorRoopa Prabhu <roopa@cumulusnetworks.com>2019-02-26 09:03:01 +0300
committerDavid S. Miller <davem@davemloft.net>2019-02-26 19:54:37 +0300
commit70fb0828800b45bfb1887223715263440dfb6b23 (patch)
treeeeba764c823eaa5f8cff558c46aea276e191fcc3 /include/net
parent703bdcbc8e4e19ab4e1a5d819251978b85777f53 (diff)
downloadlinux-70fb0828800b45bfb1887223715263440dfb6b23.tar.xz
vxlan: add extack support for create and changelink
This patch adds extack coverage in vxlan link create and changelink paths. Introduces a new helper vxlan_nl2flags to consolidate flag attribute validation. thanks to Johannes Berg for some tips to construct the generic vxlan flag extack strings. Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com> Reviewed-by: Petr Machata <petrm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
-rw-r--r--include/net/vxlan.h31
1 files changed, 31 insertions, 0 deletions
diff --git a/include/net/vxlan.h b/include/net/vxlan.h
index 09767819c3d4..00254a58824b 100644
--- a/include/net/vxlan.h
+++ b/include/net/vxlan.h
@@ -453,4 +453,35 @@ vxlan_fdb_clear_offload(const struct net_device *dev, __be32 vni)
}
#endif
+static inline void vxlan_flag_attr_error(int attrtype,
+ struct netlink_ext_ack *extack)
+{
+#define VXLAN_FLAG(flg) \
+ case IFLA_VXLAN_##flg: \
+ NL_SET_ERR_MSG_MOD(extack, \
+ "cannot change " #flg " flag"); \
+ break
+ switch (attrtype) {
+ VXLAN_FLAG(TTL_INHERIT);
+ VXLAN_FLAG(LEARNING);
+ VXLAN_FLAG(PROXY);
+ VXLAN_FLAG(RSC);
+ VXLAN_FLAG(L2MISS);
+ VXLAN_FLAG(L3MISS);
+ VXLAN_FLAG(COLLECT_METADATA);
+ VXLAN_FLAG(UDP_ZERO_CSUM6_TX);
+ VXLAN_FLAG(UDP_ZERO_CSUM6_RX);
+ VXLAN_FLAG(REMCSUM_TX);
+ VXLAN_FLAG(REMCSUM_RX);
+ VXLAN_FLAG(GBP);
+ VXLAN_FLAG(GPE);
+ VXLAN_FLAG(REMCSUM_NOPARTIAL);
+ default:
+ NL_SET_ERR_MSG_MOD(extack, \
+ "cannot change flag");
+ break;
+ }
+#undef VXLAN_FLAG
+}
+
#endif