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network: tc/cake: introduce Wash= setting

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This commit is contained in:
Yu Watanabe 2021-11-04 05:32:44 +09:00
parent 049b66ccdd
commit d05dce95d8
5 changed files with 22 additions and 0 deletions
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8
man/systemd.network.xml
View file

@ -3669,6 +3669,14 @@ Token=prefixstable:2002:da8:1::</programlisting></para>
</listitem>
</varlistentry>
<varlistentry>
<term><varname>Wash=</varname></term>
<listitem>
<para>Takes a boolean value. When true, CAKE clears the DSCP fields, except for ECN bits, of
any packet passing through CAKE. Defaults to unset, and the kernel's default is used.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>

1
src/network/networkd-network-gperf.gperf
View file

@ -394,6 +394,7 @@ CAKE.FlowIsolationMode, config_parse_cake_flow_isolation_mo
CAKE.NAT, config_parse_cake_tristate, QDISC_KIND_CAKE, 0
CAKE.PriorityQueueingPreset, config_parse_cake_priority_queueing_preset, QDISC_KIND_CAKE, 0
CAKE.FirewallMark, config_parse_cake_fwmark, QDISC_KIND_CAKE, 0
CAKE.Wash, config_parse_cake_tristate, QDISC_KIND_CAKE, 0
ControlledDelay.Parent, config_parse_qdisc_parent, QDISC_KIND_CODEL, 0
ControlledDelay.Handle, config_parse_qdisc_handle, QDISC_KIND_CODEL, 0
ControlledDelay.PacketLimit, config_parse_controlled_delay_u32, QDISC_KIND_CODEL, 0

9
src/network/tc/cake.c
View file

@ -24,6 +24,7 @@ static int cake_init(QDisc *qdisc) {
c->flow_isolation_mode = _CAKE_FLOW_ISOLATION_MODE_INVALID;
c->nat = -1;
c->preset = _CAKE_PRESET_INVALID;
c->wash = -1;
return 0;
}
@ -96,6 +97,12 @@ static int cake_fill_message(Link *link, QDisc *qdisc, sd_netlink_message *req)
return log_link_error_errno(link, r, "Could not append TCA_CAKE_FWMARK attribute: %m");
}
if (c->wash >= 0) {
r = sd_netlink_message_append_u32(req, TCA_CAKE_WASH, c->wash);
if (r < 0)
return log_link_error_errno(link, r, "Could not append TCA_CAKE_WASH attribute: %m");
}
r = sd_netlink_message_close_container(req);
if (r < 0)
return log_link_error_errno(link, r, "Could not close container TCA_OPTIONS: %m");
@ -314,6 +321,8 @@ int config_parse_cake_tristate(
dest = &c->autorate;
else if (streq(lvalue, "NAT"))
dest = &c->nat;
else if (streq(lvalue, "Wash"))
dest = &c->wash;
else
assert_not_reached();

3
src/network/tc/cake.h
View file

@ -59,6 +59,9 @@ typedef struct CommonApplicationsKeptEnhanced {
CakePriorityQueueingPreset preset;
uint32_t fwmark;
/* Other parameters */
int wash;
} CommonApplicationsKeptEnhanced;
DEFINE_QDISC_CAST(CAKE, CommonApplicationsKeptEnhanced);

1
test/fuzz/fuzz-network-parser/directives.network
View file

@ -476,6 +476,7 @@ FlowIsolationMode=
NAT=
PriorityQueueingPreset=
FirewallMark=
Wash=
[TrafficControlQueueingDiscipline]
Parent=
NetworkEmulatorDelaySec=