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networkd vxlan: Add support for enabling UDP checksums

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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]
This commit is contained in:
Susant Sahani 2015-03-05 22:02:47 +05:30 committed by Tom Gundersen
parent bf23b9f86f
commit cffacc741c
4 changed files with 51 additions and 0 deletions
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18
man/systemd.netdev.xml
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@ -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>

3
src/network/networkd-netdev-gperf.gperf
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@ -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)

27
src/network/networkd-netdev-vxlan.c
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@ -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 = {

3
src/network/networkd-netdev-vxlan.h
View File

@ -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;