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authorSusant Sahani <susant@redhat.com>2015-03-05 22:02:47 +0530
committerTom Gundersen <teg@jklm.no>2015-04-20 20:09:32 +0200
commitcffacc741cb79f63999720525ceaa65aae01a542 (patch)
tree33e89a2db842b883e5981ca33529aaa06d0d66df
parentbf23b9f86f6807c3029a6a46e1999ae0c87ca22a (diff)
networkd vxlan: Add support for enabling UDP checksums
Add UDPCheckSum option to enable transmitting UDP checksums when doing VXLAN/IPv4. Add UDP6ZeroChecksumRx, and UDP6ZeroChecksumTx options to enable sending zero checksums and receiving zero checksums in VXLAN/IPv6 [tomegun: rebase manpage due to whitespace changes]
-rw-r--r--man/systemd.netdev.xml18
-rw-r--r--src/network/networkd-netdev-gperf.gperf3
-rw-r--r--src/network/networkd-netdev-vxlan.c27
-rw-r--r--src/network/networkd-netdev-vxlan.h3
4 files changed, 51 insertions, 0 deletions
diff --git a/man/systemd.netdev.xml b/man/systemd.netdev.xml
index ef58887dc8..fc2968594d 100644
--- a/man/systemd.netdev.xml
+++ b/man/systemd.netdev.xml
@@ -410,6 +410,24 @@
on.</para>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term><varname>UDPCheckSum=</varname></term>
+ <listitem>
+ <para>A boolean. When true transmitting UDP checksums when doing VXLAN/IPv4 is turned on.</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>UDP6ZeroChecksumTx=</varname></term>
+ <listitem>
+ <para>A boolean. When true sending zero checksums in VXLAN/IPv6 is turned on.</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>UDP6ZeroCheckSumRx=</varname></term>
+ <listitem>
+ <para>A boolean. When true receiving zero checksums in VXLAN/IPv6 is turned on.</para>
+ </listitem>
+ </varlistentry>
</variablelist>
</refsect1>
<refsect1>
diff --git a/src/network/networkd-netdev-gperf.gperf b/src/network/networkd-netdev-gperf.gperf
index 963c47c3e5..c06344c397 100644
--- a/src/network/networkd-netdev-gperf.gperf
+++ b/src/network/networkd-netdev-gperf.gperf
@@ -47,6 +47,9 @@ VXLAN.ARPProxy, config_parse_bool, 0,
VXLAN.L2MissNotification, config_parse_bool, 0, offsetof(VxLan, l2miss)
VXLAN.L3MissNotification, config_parse_bool, 0, offsetof(VxLan, l3miss)
VXLAN.RouteShortCircuit, config_parse_bool, 0, offsetof(VxLan, route_short_circuit)
+VXLAN.UDPCheckSum, config_parse_bool, 0, offsetof(VxLan, udpcsum)
+VXLAN.UDP6ZeroCheckSumRx, config_parse_bool, 0, offsetof(VxLan, udp6zerocsumrx)
+VXLAN.UDP6ZeroCheckSumTx, config_parse_bool, 0, offsetof(VxLan, udp6zerocsumtx)
VXLAN.FDBAgeingSec, config_parse_sec, 0, offsetof(VxLan, fdb_ageing)
Tun.OneQueue, config_parse_bool, 0, offsetof(TunTap, one_queue)
Tun.MultiQueue, config_parse_bool, 0, offsetof(TunTap, multi_queue)
diff --git a/src/network/networkd-netdev-vxlan.c b/src/network/networkd-netdev-vxlan.c
index 4a3a51104f..e2c2b108b9 100644
--- a/src/network/networkd-netdev-vxlan.c
+++ b/src/network/networkd-netdev-vxlan.c
@@ -133,6 +133,30 @@ static int netdev_vxlan_fill_message_create(NetDev *netdev, Link *link, sd_rtnl_
}
}
+ r = sd_rtnl_message_append_u8(m, IFLA_VXLAN_UDP_CSUM, v->udpcsum);
+ if (r < 0) {
+ log_netdev_error(netdev,
+ "Could not append IFLA_VXLAN_UDP_CSUM attribute: %s",
+ strerror(-r));
+ return r;
+ }
+
+ r = sd_rtnl_message_append_u8(m, IFLA_VXLAN_UDP_ZERO_CSUM6_TX, v->udp6zerocsumtx);
+ if (r < 0) {
+ log_netdev_error(netdev,
+ "Could not append IFLA_VXLAN_UDP_ZERO_CSUM6_TX attribute: %s",
+ strerror(-r));
+ return r;
+ }
+
+ r = sd_rtnl_message_append_u8(m, IFLA_VXLAN_UDP_ZERO_CSUM6_RX, v->udp6zerocsumrx);
+ if (r < 0) {
+ log_netdev_error(netdev,
+ "Could not append IFLA_VXLAN_UDP_ZERO_CSUM6_RX attribute: %s",
+ strerror(-r));
+ return r;
+ }
+
return r;
}
@@ -197,6 +221,9 @@ static void vxlan_init(NetDev *netdev) {
v->id = VXLAN_VID_MAX + 1;
v->learning = true;
+ v->udpcsum = false;
+ v->udp6zerocsumtx = false;
+ v->udp6zerocsumrx = false;
}
const NetDevVTable vxlan_vtable = {
diff --git a/src/network/networkd-netdev-vxlan.h b/src/network/networkd-netdev-vxlan.h
index 6339af9add..fe5254e91f 100644
--- a/src/network/networkd-netdev-vxlan.h
+++ b/src/network/networkd-netdev-vxlan.h
@@ -47,6 +47,9 @@ struct VxLan {
bool route_short_circuit;
bool l2miss;
bool l3miss;
+ bool udpcsum;
+ bool udp6zerocsumtx;
+ bool udp6zerocsumrx;
};
extern const NetDevVTable vxlan_vtable;