diff options
| author | Ido Schimmel <idosch@mellanox.com> | 2018-10-17 08:53:10 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-10-17 17:45:07 -0700 |
| commit | cca45e054ce55c06046a37bf4d3fd7c17edd57da (patch) | |
| tree | 613005c07e9fbaac55946ebc6063024c5dc1bc52 /include/net/vxlan.h | |
| parent | 88782f75f93f62928c26d7e7e5c1649f85dd1469 (diff) | |
| download | lwn-cca45e054ce55c06046a37bf4d3fd7c17edd57da.tar.gz lwn-cca45e054ce55c06046a37bf4d3fd7c17edd57da.zip | |
vxlan: Export address checking functions
Drivers that support VxLAN offload need to be able to sanitize the
configuration of the VxLAN device and accept / reject its offload.
For example, mlxsw requires that the local IP of the VxLAN device be set
and that packets be flooded to unicast IP(s) and not to a multicast
group.
Expose the functions that perform such checks.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/vxlan.h')
| -rw-r--r-- | include/net/vxlan.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/include/net/vxlan.h b/include/net/vxlan.h index 7ef15179f263..dd3d72ce64b6 100644 --- a/include/net/vxlan.h +++ b/include/net/vxlan.h @@ -370,4 +370,36 @@ static inline unsigned short vxlan_get_sk_family(struct vxlan_sock *vs) return vs->sock->sk->sk_family; } +#if IS_ENABLED(CONFIG_IPV6) + +static inline bool vxlan_addr_any(const union vxlan_addr *ipa) +{ + if (ipa->sa.sa_family == AF_INET6) + return ipv6_addr_any(&ipa->sin6.sin6_addr); + else + return ipa->sin.sin_addr.s_addr == htonl(INADDR_ANY); +} + +static inline bool vxlan_addr_multicast(const union vxlan_addr *ipa) +{ + if (ipa->sa.sa_family == AF_INET6) + return ipv6_addr_is_multicast(&ipa->sin6.sin6_addr); + else + return IN_MULTICAST(ntohl(ipa->sin.sin_addr.s_addr)); +} + +#else /* !IS_ENABLED(CONFIG_IPV6) */ + +static inline bool vxlan_addr_any(const union vxlan_addr *ipa) +{ + return ipa->sin.sin_addr.s_addr == htonl(INADDR_ANY); +} + +static inline bool vxlan_addr_multicast(const union vxlan_addr *ipa) +{ + return IN_MULTICAST(ntohl(ipa->sin.sin_addr.s_addr)); +} + +#endif /* IS_ENABLED(CONFIG_IPV6) */ + #endif |