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| author | Matthias Schiffer <mschiffer@universe-factory.net> | 2017-06-19 10:03:58 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-06-20 19:37:02 +0200 |
| commit | 0f22a3c68d5fd1696dbc15c45d7ea375c865b7a1 (patch) | |
| tree | e35cb2b75860e48d811011732d0b10e73620f10d /include/net/vxlan.h | |
| parent | vxlan: improve validation of address family configuration (diff) | |
| download | linux-0f22a3c68d5fd1696dbc15c45d7ea375c865b7a1.tar.xz linux-0f22a3c68d5fd1696dbc15c45d7ea375c865b7a1.zip | |
vxlan: check valid combinations of address scopes
* Multicast addresses are never valid as local address
* Link-local IPv6 unicast addresses may only be used as remote when the
local address is link-local as well
* Don't allow link-local IPv6 local/remote addresses without interface
We also store in the flags field if link-local addresses are used for the
follow-up patches that actually make VXLAN over link-local IPv6 work.
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/vxlan.h')
| -rw-r--r-- | include/net/vxlan.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/net/vxlan.h b/include/net/vxlan.h index 479bb75789ea..b816a0a6686e 100644 --- a/include/net/vxlan.h +++ b/include/net/vxlan.h @@ -258,6 +258,7 @@ struct vxlan_dev { #define VXLAN_F_REMCSUM_NOPARTIAL 0x1000 #define VXLAN_F_COLLECT_METADATA 0x2000 #define VXLAN_F_GPE 0x4000 +#define VXLAN_F_IPV6_LINKLOCAL 0x8000 /* Flags that are used in the receive path. These flags must match in * order for a socket to be shareable @@ -272,6 +273,7 @@ struct vxlan_dev { /* Flags that can be set together with VXLAN_F_GPE. */ #define VXLAN_F_ALLOWED_GPE (VXLAN_F_GPE | \ VXLAN_F_IPV6 | \ + VXLAN_F_IPV6_LINKLOCAL | \ VXLAN_F_UDP_ZERO_CSUM_TX | \ VXLAN_F_UDP_ZERO_CSUM6_TX | \ VXLAN_F_UDP_ZERO_CSUM6_RX | \ |