Feat/validators qdisc

src/main/kotlin/net/sjrx/intellij/plugins/systemdunitfiles/semanticdata/optionvalues/AiGenerated.kt

@@ -413,6 +413,32 @@ fun getAllAIGeneratedValidators(): Map<Validator, OptionValueInformation> {
     Validator("config_parse_socket_service", "0") to ConfigParseSocketServiceOptionValue() as OptionValueInformation,
     Validator("config_parse_service_sockets", "0") to ConfigParseServiceSocketsOptionValue() as OptionValueInformation,
 
+    // Batch 2026-10: qdisc
+    Validator("config_parse_fq_codel_usec", "QDISC_KIND_FQ_CODEL") to ConfigParseFqCodelUsecOptionValue() as OptionValueInformation,
+    Validator("config_parse_tbf_rate", "QDISC_KIND_TBF") to ConfigParseTbfRateOptionValue() as OptionValueInformation,
+    Validator("config_parse_netem_rate", "QDISC_KIND_NETEM") to ConfigParseNetemRateOptionValue() as OptionValueInformation,
+    Validator("config_parse_netem_delay", "QDISC_KIND_NETEM") to ConfigParseNetemDelayOptionValue() as OptionValueInformation,
+    Validator("config_parse_htb_class_rate", "TCLASS_KIND_HTB") to ConfigParseHtbClassRateOptionValue() as OptionValueInformation,
+    Validator("config_parse_gred_u32", "QDISC_KIND_GRED") to ConfigParseGredU32OptionValue() as OptionValueInformation,
+    Validator("config_parse_fq_codel_u32", "QDISC_KIND_FQ_CODEL") to ConfigParseFqCodelU32OptionValue() as OptionValueInformation,
+    Validator("config_parse_teql_id", "QDISC_KIND_TEQL") to ConfigParseTeqlIdOptionValue() as OptionValueInformation,
+    Validator("config_parse_qfq_max_packet", "TCLASS_KIND_QFQ") to ConfigParseQfqMaxPacketOptionValue() as OptionValueInformation,
+    Validator("config_parse_pie_packet_limit", "QDISC_KIND_PIE") to ConfigParsePiePacketLimitOptionValue() as OptionValueInformation,
+    Validator("config_parse_htb_u32", "QDISC_KIND_HTB") to ConfigParseHtbU32OptionValue() as OptionValueInformation,
+    Validator("config_parse_htb_default_class", "QDISC_KIND_HTB") to ConfigParseHtbDefaultClassOptionValue() as OptionValueInformation,
+    Validator("config_parse_htb_class_u32", "TCLASS_KIND_HTB") to ConfigParseHtbClassU32OptionValue() as OptionValueInformation,
+    Validator("config_parse_gred_bool", "QDISC_KIND_GRED") to ConfigParseGredBoolOptionValue() as OptionValueInformation,
+    Validator("config_parse_fq_usec", "QDISC_KIND_FQ") to ConfigParseFqUsecOptionValue() as OptionValueInformation,
+    Validator("config_parse_fq_max_rate", "QDISC_KIND_FQ") to ConfigParseFqMaxRateOptionValue() as OptionValueInformation,
+    Validator("config_parse_fq_codel_bool", "QDISC_KIND_FQ_CODEL") to ConfigParseFqCodelBoolOptionValue() as OptionValueInformation,
+    Validator("config_parse_ets_quanta", "QDISC_KIND_ETS") to ConfigParseEtsQuantaOptionValue() as OptionValueInformation,
+    Validator("config_parse_ets_prio", "QDISC_KIND_ETS") to ConfigParseEtsPrioOptionValue() as OptionValueInformation,
+    Validator("config_parse_drr_size", "TCLASS_KIND_DRR") to ConfigParseDrrSizeOptionValue() as OptionValueInformation,
+    Validator("config_parse_cake_flow_isolation_mode", "QDISC_KIND_CAKE") to ConfigParseCakeFlowIsolationModeOptionValue() as OptionValueInformation,
+    Validator("config_parse_cake_bandwidth", "QDISC_KIND_CAKE") to ConfigParseCakeBandwidthOptionValue() as OptionValueInformation,
+    Validator("config_parse_cake_ack_filter", "QDISC_KIND_CAKE") to ConfigParseCakeAckFilterOptionValue() as OptionValueInformation,
+    Validator("config_parse_bfifo_size", "QDISC_KIND_BFIFO") to ConfigParseBfifoSizeOptionValue() as OptionValueInformation,
+
   )
 
   return allValidators

src/main/kotlin/net/sjrx/intellij/plugins/systemdunitfiles/semanticdata/optionvalues/ai/ConfigParseBfifoSizeOptionValue.kt

@@ -0,0 +1,29 @@
+package net.sjrx.intellij.plugins.systemdunitfiles.semanticdata.optionvalues.ai
+
+import net.sjrx.intellij.plugins.systemdunitfiles.semanticdata.optionvalues.SimpleGrammarOptionValues
+import net.sjrx.intellij.plugins.systemdunitfiles.semanticdata.optionvalues.grammar.*
+
+/*
+ * [BFIFO] LimitBytes= (.network)
+ *
+ * man    https://www.freedesktop.org/software/systemd/man/latest/systemd.network.html#LimitBytes=
+ * parser https://github.com/systemd/systemd/blob/0f0682b773/src/network/tc/fifo.c#L103-L160   config_parse_bfifo_size (QDISC_KIND_BFIFO)
+ * leaf   https://github.com/systemd/systemd/blob/0f0682b773/src/basic/parse-util.c#L157-L283   parse_size
+ * tests  https://github.com/systemd/systemd/blob/0f0682b773/src/test/test-parse-util.c#L108-L176   TEST(parse_size_iec)
+ * tests  https://github.com/systemd/systemd/blob/0f0682b773/src/test/test-parse-util.c#L178-L246   TEST(parse_size_si)
+ * tests  https://github.com/systemd/systemd/blob/0f0682b773/test/test-network/conf/25-qdisc-htb-fifo.network#L42   LimitBytes=1000000
+ */
+
+/**
+ * Validator for [BFIFO] LimitBytes=.
+ *
+ * C function: config_parse_bfifo_size (QDISC_KIND_BFIFO). An empty assignment resets the setting and is
+ * handled before this grammar runs.
+ *
+ * A byte size as parse_size(rvalue, 1024) reads it (see [parseSize]) that must not exceed UINT32_MAX:
+ * above it the parser logs "Invalid 'LimitBytes=', ignoring assignment". So `4G` is rejected.
+ */
+class ConfigParseBfifoSizeOptionValue : SimpleGrammarOptionValues(
+  "config_parse_bfifo_size",
+  SequenceCombinator(parseSize(1024, maxInclusive = SIZE_UINT32_MAX), EOF()),
+)

src/main/kotlin/net/sjrx/intellij/plugins/systemdunitfiles/semanticdata/optionvalues/ai/ConfigParseCakeAckFilterOptionValue.kt

@@ -0,0 +1,37 @@
+package net.sjrx.intellij.plugins.systemdunitfiles.semanticdata.optionvalues.ai
+
+import net.sjrx.intellij.plugins.systemdunitfiles.semanticdata.optionvalues.SimpleGrammarOptionValues
+import net.sjrx.intellij.plugins.systemdunitfiles.semanticdata.optionvalues.grammar.*
+
+/*
+ * [CAKE] AckFilter= (.network)
+ *
+ * man    https://www.freedesktop.org/software/systemd/man/latest/systemd.network.html#AckFilter=
+ * parser https://github.com/systemd/systemd/blob/0f0682b773/src/network/tc/cake.c#L680-L730   config_parse_cake_ack_filter (QDISC_KIND_CAKE)
+ * leaf   https://github.com/systemd/systemd/blob/0f0682b773/src/network/tc/cake.c#L672-L678   cake_ack_filter_table + DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING_WITH_BOOLEAN
+ * leaf   https://github.com/systemd/systemd/blob/0f0682b773/src/basic/string-table.c#L32-L43   string_table_lookup_from_string_with_boolean
+ * leaf   https://github.com/systemd/systemd/blob/0f0682b773/src/basic/parse-util.c#L23-L46   parse_boolean (case-insensitive)
+ * tests  https://github.com/systemd/systemd/blob/0f0682b773/src/test/test-parse-util.c#L13-L37   TEST(parse_boolean) — "YES", "TRUE", "ON" accepted
+ * tests  https://github.com/systemd/systemd/blob/0f0682b773/test/test-network/conf/25-qdisc-cake.network#L25   AckFilter=aggressive
+ */
+
+/**
+ * Validator for [CAKE] AckFilter=.
+ *
+ * C function: config_parse_cake_ack_filter (QDISC_KIND_CAKE). An empty assignment resets the setting and is
+ * handled before this grammar runs.
+ *
+ * A boolean (parse_boolean() is tried first, case-insensitively: `yes` -> filter, `no` -> off) or the
+ * table word `aggressive`, which is matched exactly (case-sensitive streq). The table's `no`/`yes`
+ * entries are not listed as names: parse_boolean() already takes them, in any case.
+ */
+class ConfigParseCakeAckFilterOptionValue : SimpleGrammarOptionValues(
+  "config_parse_cake_ack_filter",
+  SequenceCombinator(
+    PreferValidAlternativeCombinator(
+      FlexibleLiteralChoiceTerminal("aggressive"),
+      BOOLEAN,
+    ),
+    EOF(),
+  ),
+)

src/main/kotlin/net/sjrx/intellij/plugins/systemdunitfiles/semanticdata/optionvalues/ai/ConfigParseCakeBandwidthOptionValue.kt

@@ -0,0 +1,29 @@
+package net.sjrx.intellij.plugins.systemdunitfiles.semanticdata.optionvalues.ai
+
+import net.sjrx.intellij.plugins.systemdunitfiles.semanticdata.optionvalues.SimpleGrammarOptionValues
+import net.sjrx.intellij.plugins.systemdunitfiles.semanticdata.optionvalues.grammar.*
+
+/*
+ * [CAKE] Bandwidth= (.network)
+ *
+ * man    https://www.freedesktop.org/software/systemd/man/latest/systemd.network.html#Bandwidth=
+ * parser https://github.com/systemd/systemd/blob/0f0682b773/src/network/tc/cake.c#L141-L193   config_parse_cake_bandwidth (QDISC_KIND_CAKE)
+ * leaf   https://github.com/systemd/systemd/blob/0f0682b773/src/basic/parse-util.c#L157-L283   parse_size
+ * tests  https://github.com/systemd/systemd/blob/0f0682b773/src/test/test-parse-util.c#L108-L176   TEST(parse_size_iec)
+ * tests  https://github.com/systemd/systemd/blob/0f0682b773/src/test/test-parse-util.c#L178-L246   TEST(parse_size_si)
+ * tests  https://github.com/systemd/systemd/blob/0f0682b773/test/test-network/conf/25-qdisc-cake.network#L12   Bandwidth=500M
+ */
+
+/**
+ * Validator for [CAKE] Bandwidth=.
+ *
+ * C function: config_parse_cake_bandwidth (QDISC_KIND_CAKE). An empty assignment resets the setting and is
+ * handled before this grammar runs.
+ *
+ * A rate in bits per second as parse_size(rvalue, 1000) reads it (see [parseSize]); the result is
+ * divided by 8 and stored as a uint64 with no further bound.
+ */
+class ConfigParseCakeBandwidthOptionValue : SimpleGrammarOptionValues(
+  "config_parse_cake_bandwidth",
+  SequenceCombinator(parseSize(1000), EOF()),
+)

src/main/kotlin/net/sjrx/intellij/plugins/systemdunitfiles/semanticdata/optionvalues/ai/ConfigParseCakeFlowIsolationModeOptionValue.kt

@@ -0,0 +1,28 @@
+package net.sjrx.intellij.plugins.systemdunitfiles.semanticdata.optionvalues.ai
+
+import net.sjrx.intellij.plugins.systemdunitfiles.semanticdata.optionvalues.SimpleGrammarOptionValues
+import net.sjrx.intellij.plugins.systemdunitfiles.semanticdata.optionvalues.grammar.*
+
+/*
+ * [CAKE] FlowIsolationMode= (.network)
+ *
+ * man    https://www.freedesktop.org/software/systemd/man/latest/systemd.network.html#FlowIsolationMode=
+ * parser https://github.com/systemd/systemd/blob/0f0682b773/src/network/tc/cake.c#L442-L492   config_parse_cake_flow_isolation_mode (QDISC_KIND_CAKE)
+ * leaf   https://github.com/systemd/systemd/blob/0f0682b773/src/network/tc/cake.c#L429-L438   cake_flow_isolation_mode_table
+ * leaf   https://github.com/systemd/systemd/blob/0f0682b773/src/network/tc/cake.c#L440   DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING (exact, case-sensitive)
+ * tests  https://github.com/systemd/systemd/blob/0f0682b773/test/test-network/conf/25-qdisc-cake.network#L18   FlowIsolationMode=dual-dst-host
+ */
+
+/**
+ * Validator for [CAKE] FlowIsolationMode=.
+ *
+ * C function: config_parse_cake_flow_isolation_mode (QDISC_KIND_CAKE). An empty assignment resets the setting and is
+ * handled before this grammar runs.
+ *
+ * One of `none`, `src-host`, `dst-host`, `hosts`, `flows`, `dual-src-host`, `dual-dst-host`, `triple`,
+ * matched exactly (string_table_lookup is case-sensitive, and this table has no boolean fallback).
+ */
+class ConfigParseCakeFlowIsolationModeOptionValue : SimpleGrammarOptionValues(
+  "config_parse_cake_flow_isolation_mode",
+  SequenceCombinator(FlexibleLiteralChoiceTerminal("none", "src-host", "dst-host", "hosts", "flows", "dual-src-host", "dual-dst-host", "triple"), EOF()),
+)

src/main/kotlin/net/sjrx/intellij/plugins/systemdunitfiles/semanticdata/optionvalues/ai/ConfigParseDrrSizeOptionValue.kt

@@ -0,0 +1,30 @@
+package net.sjrx.intellij.plugins.systemdunitfiles.semanticdata.optionvalues.ai
+
+import net.sjrx.intellij.plugins.systemdunitfiles.semanticdata.optionvalues.SimpleGrammarOptionValues
+import net.sjrx.intellij.plugins.systemdunitfiles.semanticdata.optionvalues.grammar.*
+
+/*
+ * [DeficitRoundRobinSchedulerClass] QuantumBytes= (.network)
+ *
+ * man    https://www.freedesktop.org/software/systemd/man/latest/systemd.network.html#QuantumBytes=
+ * parser https://github.com/systemd/systemd/blob/0f0682b773/src/network/tc/drr.c#L45-L102   config_parse_drr_size (TCLASS_KIND_DRR)
+ * leaf   https://github.com/systemd/systemd/blob/0f0682b773/src/basic/parse-util.c#L157-L283   parse_size
+ * tests  https://github.com/systemd/systemd/blob/0f0682b773/src/test/test-parse-util.c#L108-L176   TEST(parse_size_iec)
+ * tests  https://github.com/systemd/systemd/blob/0f0682b773/src/test/test-parse-util.c#L178-L246   TEST(parse_size_si)
+ * tests  https://github.com/systemd/systemd/blob/0f0682b773/test/test-network/conf/25-qdisc-drr.network#L16   QuantumBytes=2000
+ */
+
+/**
+ * Validator for [DeficitRoundRobinSchedulerClass] QuantumBytes=.
+ *
+ * C function: config_parse_drr_size (TCLASS_KIND_DRR). An empty assignment resets the setting and is
+ * handled before this grammar runs.
+ *
+ * A byte size as parse_size(rvalue, 1024) reads it (see [parseSize]) that must not exceed UINT32_MAX:
+ * above it the parser logs "Invalid 'QuantumBytes=', ignoring assignment". So `4G` (4294967296) is
+ * rejected and `4095M` is accepted.
+ */
+class ConfigParseDrrSizeOptionValue : SimpleGrammarOptionValues(
+  "config_parse_drr_size",
+  SequenceCombinator(parseSize(1024, maxInclusive = SIZE_UINT32_MAX), EOF()),
+)

src/main/kotlin/net/sjrx/intellij/plugins/systemdunitfiles/semanticdata/optionvalues/ai/ConfigParseEtsPrioOptionValue.kt

@@ -0,0 +1,51 @@
+package net.sjrx.intellij.plugins.systemdunitfiles.semanticdata.optionvalues.ai
+
+import net.sjrx.intellij.plugins.systemdunitfiles.semanticdata.optionvalues.SimpleGrammarOptionValues
+import net.sjrx.intellij.plugins.systemdunitfiles.semanticdata.optionvalues.grammar.*
+import java.math.BigInteger
+
+/*
+ * [EnhancedTransmissionSelection] PriorityMap= (.network)
+ *
+ * man    https://www.freedesktop.org/software/systemd/man/latest/systemd.network.html#PriorityMap=
+ * parser https://github.com/systemd/systemd/blob/0f0682b773/src/network/tc/ets.c#L227-L302   config_parse_ets_prio (QDISC_KIND_ETS)
+ * leaf   https://github.com/systemd/systemd/blob/0f0682b773/src/basic/parse-util.c#L429-L478   safe_atou_full
+ * leaf   https://github.com/systemd/systemd/blob/0f0682b773/src/basic/parse-util.c#L403-L427   mangle_base
+ * leaf   https://github.com/systemd/systemd/blob/0f0682b773/src/basic/parse-util.h#L45-L47   safe_atou8
+ * leaf   https://github.com/systemd/systemd/blob/0f0682b773/src/basic/parse-util.c#L583-L597   safe_atou8_full (rejects > UINT8_MAX)
+ * leaf   https://github.com/systemd/systemd/blob/0f0682b773/src/include/uapi/linux/pkt_sched.h#L28   TC_PRIO_MAX = 15
+ * tests  https://github.com/systemd/systemd/blob/0f0682b773/src/test/test-parse-util.c#L489   safe_atou16("+12345") accepted
+ * tests  https://github.com/systemd/systemd/blob/0f0682b773/src/test/test-parse-util.c#L466-L470   0o6 / 0B101 prefixes (safe_atolli, same mangle_base)
+ * tests  https://github.com/systemd/systemd/blob/0f0682b773/test/test-network/conf/25-qdisc-ets.network#L18-L21   PriorityMap=8 7 6 5 / PriorityMap= / PriorityMap=3 4 5
+ */
+
+private val ETS_BAND = SafeAtoTerminal(
+  signed = false,
+  base = 0,
+  flags = emptySet(),
+  minInclusive = BigInteger.ZERO,
+  maxInclusive = SafeAtoTerminal.UINT8_MAX,
+  acceptsWhitespace = false,
+  acceptsMinus = true,
+)
+
+/**
+ * Validator for [EnhancedTransmissionSelection] PriorityMap=.
+ *
+ * C function: config_parse_ets_prio (QDISC_KIND_ETS). An empty assignment resets the setting and is
+ * handled before this grammar runs.
+ *
+ * A whitespace-separated list of band numbers, each read with safe_atou8 (base 0, 0…255), at most
+ * TC_PRIO_MAX + 1 (16) entries per line. Each entry is a word from extract_first_word(), so the number
+ * cannot contain a blank: `0b+1` is 1, but `0b 1` is the words `0b` (invalid) and `1`. Out-of-range or unparsable entries are logged and skipped by
+ * the C, and so are flagged here; so is a 17th entry.
+ *
+ * Lenient: enhanced_transmission_selection_verify later rejects the whole section if any entry is not
+ * below the number of bands (at most 16), so values 16…255 can never actually work; they are accepted
+ * here because the man page documents 0…255 and that is what the parser itself checks. The 16-entry
+ * cap is cumulative across lines; only the per-line count is checked.
+ */
+class ConfigParseEtsPrioOptionValue : SimpleGrammarOptionValues(
+  "config_parse_ets_prio",
+  SequenceCombinator(ETS_BAND, Repeat(SequenceCombinator(WhitespaceTerminal(), ETS_BAND), 0, 15), EOF()),
+)

src/main/kotlin/net/sjrx/intellij/plugins/systemdunitfiles/semanticdata/optionvalues/ai/ConfigParseEtsQuantaOptionValue.kt

@@ -0,0 +1,41 @@
+package net.sjrx.intellij.plugins.systemdunitfiles.semanticdata.optionvalues.ai
+
+import java.math.BigInteger
+import net.sjrx.intellij.plugins.systemdunitfiles.semanticdata.optionvalues.SimpleGrammarOptionValues
+import net.sjrx.intellij.plugins.systemdunitfiles.semanticdata.optionvalues.grammar.*
+
+/*
+ * [EnhancedTransmissionSelection] QuantumBytes= (.network)
+ *
+ * man    https://www.freedesktop.org/software/systemd/man/latest/systemd.network.html#QuantumBytes=
+ * parser https://github.com/systemd/systemd/blob/0f0682b773/src/network/tc/ets.c#L144-L225   config_parse_ets_quanta (QDISC_KIND_ETS)
+ * leaf   https://github.com/systemd/systemd/blob/0f0682b773/src/basic/parse-util.c#L157-L283   parse_size
+ * leaf   https://github.com/systemd/systemd/blob/0f0682b773/src/include/uapi/linux/pkt_sched.h#L1210   TCQ_ETS_MAX_BANDS = 16
+ * tests  https://github.com/systemd/systemd/blob/0f0682b773/src/test/test-parse-util.c#L108-L176   TEST(parse_size_iec)
+ * tests  https://github.com/systemd/systemd/blob/0f0682b773/src/test/test-parse-util.c#L178-L246   TEST(parse_size_si)
+ * tests  https://github.com/systemd/systemd/blob/0f0682b773/test/test-network/conf/25-qdisc-ets.network#L14-L17   QuantumBytes=2 4 6 / QuantumBytes= / QuantumBytes=1001 1002 1003
+ */
+
+private val ETS_QUANTUM = parseSize(1024, minInclusive = BigInteger.ONE, maxInclusive = SIZE_UINT32_MAX, allowInnerWhitespace = false)
+
+/**
+ * Validator for [EnhancedTransmissionSelection] QuantumBytes=.
+ *
+ * C function: config_parse_ets_quanta (QDISC_KIND_ETS). An empty assignment resets the setting and is
+ * handled before this grammar runs.
+ *
+ * A whitespace-separated list (extract_first_word, no flags) of byte sizes, each read with
+ * parse_size(word, 1024) and required to be 1…4294967295; at most TCQ_ETS_MAX_BANDS (16) entries. A
+ * zero, oversized or unparsable entry is logged and skipped by the C ("ignoring assignment"), and so is
+ * flagged here; so is a 17th entry on one line.
+ *
+ * Because the list is split on whitespace first, each entry is a single word: `1K` or `1K512B` is one
+ * entry, but `1K 512B` is two.
+ *
+ * Lenient: the 16-entry cap is cumulative across repeated QuantumBytes= lines (until an empty
+ * assignment resets the list); only the per-line count is checked.
+ */
+class ConfigParseEtsQuantaOptionValue : SimpleGrammarOptionValues(
+  "config_parse_ets_quanta",
+  SequenceCombinator(ETS_QUANTUM, Repeat(SequenceCombinator(WhitespaceTerminal(), ETS_QUANTUM), 0, 15), EOF()),
+)

src/main/kotlin/net/sjrx/intellij/plugins/systemdunitfiles/semanticdata/optionvalues/ai/ConfigParseFqCodelBoolOptionValue.kt

@@ -0,0 +1,29 @@
+package net.sjrx.intellij.plugins.systemdunitfiles.semanticdata.optionvalues.ai
+
+import net.sjrx.intellij.plugins.systemdunitfiles.semanticdata.optionvalues.SimpleGrammarOptionValues
+import net.sjrx.intellij.plugins.systemdunitfiles.semanticdata.optionvalues.grammar.*
+
+/*
+ * [FairQueueingControlledDelay] ECN= (.network)
+ *
+ * man    https://www.freedesktop.org/software/systemd/man/latest/systemd.network.html#ECN=
+ * parser https://github.com/systemd/systemd/blob/0f0682b773/src/network/tc/fq-codel.c#L222-L265   config_parse_fq_codel_bool (QDISC_KIND_FQ_CODEL)
+ * leaf   https://github.com/systemd/systemd/blob/0f0682b773/src/basic/parse-util.c#L48-L64   parse_tristate_full
+ * leaf   https://github.com/systemd/systemd/blob/0f0682b773/src/basic/parse-util.c#L23-L46   parse_boolean (STRCASE_IN_SET: case-insensitive)
+ * tests  https://github.com/systemd/systemd/blob/0f0682b773/src/test/test-parse-util.c#L13-L37   TEST(parse_boolean) — "YES", "TRUE", "ON" accepted
+ * tests  https://github.com/systemd/systemd/blob/0f0682b773/test/test-network/conf/25-qdisc-fq_codel.network#L18   ECN=yes
+ */
+
+/**
+ * Validator for [FairQueueingControlledDelay] ECN=.
+ *
+ * C function: config_parse_fq_codel_bool (QDISC_KIND_FQ_CODEL). An empty assignment resets the setting and is
+ * handled before this grammar runs.
+ *
+ * A boolean via parse_tristate(): any parse_boolean() spelling, case-insensitively. Empty resets to
+ * "unset" (handled before the grammar).
+ */
+class ConfigParseFqCodelBoolOptionValue : SimpleGrammarOptionValues(
+  "config_parse_fq_codel_bool",
+  SequenceCombinator(BOOLEAN, EOF()),
+)