722 lines
15 KiB
Bash
Executable File
722 lines
15 KiB
Bash
Executable File
#!/bin/sh
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#
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# Generate s6 network definitions
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set -ex
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header_eb() {
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echo '#!/bin/execlineb -P'
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}
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header_if() {
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local if="${1:?missing if}"
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echo "define INTERFACE $if"
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}
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header_addr() {
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local addr="${1:?missing addr}"
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echo "define ADDR $addr"
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}
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header_fam() {
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local fam="${1:?missing family}"
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echo "define FAMILY $fam"
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}
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header_vlan() {
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local vlan="${1:?missing vlan}"
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local parent="${2:?missing parent}"
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echo "define VLAN $vlan"
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echo "define PARENT $parent"
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}
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header_vrf() {
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local vrf="${1:?missing vrf}"
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echo "define VRF $vrf"
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}
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header_prop() {
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local prop="${1:?missing prop}"
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echo "define PROP $prop"
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}
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header_path() {
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cat <<EOF
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s6-envdir -i /etc/s6/env/path
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emptyenv -p
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EOF
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}
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addrfam() {
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# Use ipv6 if cannot autodetect of if no semicolons are present
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local addr="$1"
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local fam='6'
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if which grep >/dev/null 2>&1 && echo "$addr" | grep -v ':' >/dev/null 2>&1; then
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fam='4'
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fi
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echo "$fam"
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}
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linkdel() {
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local if="${1:?missing if}"
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header_eb
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header_path
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header_if "$if"
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echo 'ip link del $INTERFACE'
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}
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depends() {
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echo "$@"
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local svcname="${1:?missing sname}"
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shift 1
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local sname # God i fucking hate global contexts by default
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for sname in $@; do
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install -Dm644 /dev/null rc/"$svcname"/dependencies.d/"$sname"
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done
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}
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contains() {
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local svcname="${1:?missing sname}"
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shift 1
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local sname # God i fucking hate global contexts by default
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for sname in $@; do
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install -Dm644 /dev/null rc/"$svcname"/contents.d/"$sname"
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done
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}
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#
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# Bundle management
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#
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bundle_deps() {
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local if="${1:?missing if}"
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local svcname="bundle.interface.$if"
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[ -r "rc/$svcname/type" ] || install -Dm644 <(echo bundle) rc/"$svcname"/type
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shift 1
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contains "$svcname" $@
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}
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# Currently used stages
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# > configure
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# - create
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# - enslave
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# - configure (anything that must be configured before interface is up)
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# > ready
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# - link
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# - configure (anything that may be configured after interface is up)
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bundle_stage_create() {
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local if="${1:?missing if}"
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local stage="${2:?missing stage}"
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local svcname="bundle.interface.$if.$stage"
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[ -r "rc/$svcname/type" ] || install -Dm644 <(echo bundle) rc/"$svcname"/type
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# Add to parent bundle
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bundle_deps "$if" "$svcname"
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shift 2
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contains "$svcname" $@
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}
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bundle_stage_depend_on() {
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local if="${1:?missing if}"
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local stage="${2:?missing stage}"
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local svcname="bundle.interface.$if.$stage"
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shift 2
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local sname
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for sname in $@; do
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depends "$sname" "$svcname"
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done
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}
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bundle_stage_step_configure() {
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local if="$1"
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local stage="configure"
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shift 1
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bundle_stage_create "$if" "$stage" $@
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}
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bundle_stage_step_ready() {
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local if="$1"
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local stage="ready"
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shift 1
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bundle_stage_create "$if" "$stage" $@
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}
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#
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# Interface creation
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#
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new_link() {
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local if="${1:?missing if}"
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shift 1
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local sname="interface.$if.link"
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bundle_stage_step_ready "$if" "$sname"
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install -Dm644 <(
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header_eb
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header_path
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header_if "$if"
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echo 'ip link set dev $INTERFACE up'
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) rc/"$sname"/up
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install -Dm644 <(
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header_eb
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header_path
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header_if "$if"
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echo 'ip link set dev $INTERFACE down'
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) rc/"$sname"/down
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install -Dm644 <(echo oneshot) rc/"$sname"/type
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bundle_stage_depend_on "$if" "configure" "$sname"
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}
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new_if_bridge() {
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local if="${1:?missing if}"
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local sname="interface.$if.create"
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bundle_stage_step_configure "$if" "$sname"
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new_link "$if"
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install -Dm644 <(
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header_eb
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header_path
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header_if "$if"
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shift 1
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echo 'ip link add $INTERFACE type bridge'
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) rc/"$sname"/up
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install -Dm644 <(linkdel "$if") rc/"$sname"/down
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install -Dm644 <(echo oneshot) rc/"$sname"/type
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depends "$sname" module.bridge
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}
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new_if_phys() {
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local if="${1:?missing if}"
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local sname="interface.$if.create"
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bundle_stage_step_configure "$if" "$sname"
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new_link "$if"
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install -Dm644 <(
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header_eb
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header_path
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header_if "$if"
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echo 'bcnm-waitif 1 $INTERFACE'
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) rc/"$sname"/up
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install -Dm644 <(echo oneshot) rc/"$sname"/type
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depends "$sname" bundle.hw-coldplug
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}
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new_if_wg() {
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local if="${1:?missing if}"
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# Main service for creating interface
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local sname="interface.$if.create"
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bundle_stage_step_configure "$if" "$sname"
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install -Dm644 <(
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header_eb
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header_path
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header_if "$if"
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echo 'ip link add $INTERFACE type wireguard'
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) rc/"$sname"/up
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install -Dm644 <(linkdel "$if") rc/"$sname"/down
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install -Dm644 <(echo oneshot) rc/"$sname"/type
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depends "$sname" module.wireguard
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new_link "$if"
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# Secondary service for loading config
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if_wg_conf "$if"
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}
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new_if_vrf() {
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local if="${1:?missing if}"
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local table="${2:?missing table}"
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local sname="interface.$if.create"
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bundle_stage_step_configure "$if" "$sname"
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install -Dm644 <(
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header_eb
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header_path
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header_if "$if"
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cat <<EOF
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s6-envdir -i /etc/s6/env/interface.\${INTERFACE}
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importas -i TABLE TABLE
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EOF
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echo 'ip link add $INTERFACE type vrf table $TABLE'
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) rc/"$sname"/up
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install -Dm644 <(linkdel "$if") rc/"$sname"/down
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install -Dm644 <(echo oneshot) rc/"$sname"/type
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install -Dm644 <(echo "$table") env/interface."$if"/TABLE
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depends "$sname" module.vrf sysctl.net-ipv6-conf-all-keep_addr_on_down
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new_link "$if"
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}
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new_if_vlan() {
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local if="${1:?missing if}"
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local vlan="$(echo $if | cut -d'-' -f2)"
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local parent="$(echo $if | cut -d'-' -f1)"
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local sname="interface.$if.create"
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bundle_stage_step_configure "$if" "$sname"
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install -Dm644 <(
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header_eb
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header_path
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header_if "$if"
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header_vlan "$vlan" "$parent"
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echo 'ip link add link $PARENT name $INTERFACE type vlan id $VLAN'
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) rc/"$sname"/up
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install -Dm644 <(linkdel "$if") rc/"$sname"/down
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install -Dm644 <(echo oneshot) rc/"$sname"/type
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depends "$sname" module.8021q interface."$parent".create
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new_link "$if"
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}
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new_if_bond() {
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local if="${1:?missing if}"
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local sname="interface.$if.create"
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bundle_stage_step_configure "$if" "$sname"
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install -Dm644 <(
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header_eb
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header_path
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header_if "$if"
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echo 'ip link add name $INTERFACE type bond'
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) rc/"$sname"/up
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install -Dm644 <(linkdel "$if") rc/"$sname"/down
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install -Dm644 <(echo oneshot) rc/"$sname"/type
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depends "$sname" module.bonding interface."$parent".create
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new_link "$if"
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}
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#
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# Interface configuration and properties
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#
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if_slave() {
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local master="${1:?missing master}"
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local slave="${2:?missing slave}"
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local sname="interface.$master.slave.$slave"
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bundle_stage_step_configure "$master" "$sname"
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install -Dm644 <(
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header_eb
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header_path
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cat <<EOF
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define MASTERIF $master
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define SLAVEIF $slave
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EOF
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echo 'ip link set dev $SLAVEIF master $MASTERIF'
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) rc/"$sname"/up
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install -Dm644 <(
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header_eb
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header_path
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cat <<EOF
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define SLAVEIF $slave
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EOF
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echo 'ip link set dev $SLAVEIF nomaster'
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) rc/"$sname"/down
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install -Dm644 <(echo oneshot) rc/"$sname"/type
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depends "$sname" interface."$master".create interface."$slave".create
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}
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if_forward() {
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local if="${1:?missing if}"
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local fam="${2:-6}"
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if_sysctl "$if" "forwarding" '1' '0' "$fam"
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}
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if_accept_ra() {
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local if="${1:?missing if}"
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local fam="6"
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if_sysctl "$if" "accept_ra" '2' '0' "$fam"
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}
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if_sysctl() {
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local if="${1:?missing if}"
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local prop="${2:?missing property}"
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local val_e="${3:-1}"
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local val_d="${4:-0}"
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local fam="${5:-6}"
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local sname="sysctl.net-ipv$fam-conf-$if-$prop"
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bundle_stage_step_configure "$if" "$sname"
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install -Dm644 <(
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header_eb
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header_path
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header_if "$if"
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header_fam "$fam"
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header_prop "$prop"
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cat <<EOF
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export VAL $val_e
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s6-envdir -I /etc/s6/env/sysctl.net-ipv\${FAMILY}-conf-\${INTERFACE}-\${PROP}
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export SYSCTL net/ipv\${FAMILY}/conf/\${INTERFACE}/\${PROP}
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/usr/libexec/nnd/s6/sysctl
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EOF
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) rc/"$sname"/up
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install -Dm644 <(
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header_eb
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header_path
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header_if "$if"
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header_fam "$fam"
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header_prop "$prop"
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cat <<EOF
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export SYSCTL net/ipv\${FAMILY}/conf/\${INTERFACE}/\${PROP}
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export VAL $val_d
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/usr/libexec/nnd/s6/sysctl
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EOF
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) rc/"$sname"/down
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install -Dm644 <(echo oneshot) rc/"$sname"/type
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[ "$fam" = '6' ] && depends "$sname" module.ipv6
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depends "$sname" mount.proc interface."$if".create
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}
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if_bridge_property() {
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local prop="${1:?missing prop}"
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local if="${2:?missing if}"
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local state="${3:-1}"
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local downstate="${4-0}"
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local sname="interface.$if.bridge.$prop"
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bundle_stage_step_configure "$if" "$sname"
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install -Dm644 <(
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header_eb
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header_path
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header_if "$if"
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cat <<EOF
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define PROP $prop
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define STATE $state
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EOF
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echo 'ip link set $INTERFACE type bridge $PROP $STATE'
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) rc/"$sname"/up
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[ -z "$downstate" ] || install -Dm644 <(
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header_eb
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header_path
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header_if "$if"
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cat <<EOF
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define PROP $prop
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define STATE $downstate
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EOF
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echo 'ip link set $INTERFACE type bridge $PROP $STATE'
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) rc/"$sname"/down
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install -Dm644 <(echo oneshot) rc/"$sname"/type
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# Might not be a requirement since STP is probably a hard dependency of bridges
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[ "$prop" == 'stp_state' ] && depends "$sname" module.stp
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depends "$sname" interface."$if".create
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}
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if_ether_address() {
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local if="${1:?missing if}"
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local addr="${2:?missing addr}"
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local sname="interface.$if.ether.addr"
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bundle_stage_step_configure "$if" "$sname"
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install -Dm644 <(
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header_eb
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header_path
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header_if "$if"
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header_addr "$addr"
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echo 'ip link set $INTERFACE address $ADDR'
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) rc/"$sname"/up
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install -Dm644 <(echo oneshot) rc/"$sname"/type
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depends "$sname" interface."$if".create
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}
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if_wg_conf() {
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local if="${1:?missing if}"
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local sname="interface.$if.wg.config"
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bundle_stage_step_configure "$if" "$sname"
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install -Dm644 <(
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header_eb
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header_path
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header_if "$if"
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cat <<EOF
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s6-envdir -I /etc/s6/env/interface.\${INTERFACE}.wg-config
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importas -D /etc/wireguard/\${INTERFACE} CONFIG CONFIG
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EOF
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echo 'wg setconf $INTERFACE $CONFIG'
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) rc/"$sname"/up
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install -Dm644 <(echo oneshot) rc/"$sname"/type
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depends "$sname" interface."$if".create
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}
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if_dhcp() {
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local if="${1:?missing if}"
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local sname="interface.$if.dhcp"
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bundle_stage_step_ready "$if" "$sname"
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install -Dm755 <(
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header_eb
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header_path
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header_if "$if"
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cat <<EOF
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fdmove -c 2 1
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udhcpc -i \$INTERFACE -f -S
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EOF
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) rc/"$sname"/run
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install -Dm644 <(echo longrun) rc/"$sname"/type
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install -Dm644 <(echo logger.udhcpc) rc/"$sname"/producer-for
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depends "$sname" interface."$if".link syslogd
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}
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if_ip_addr() {
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local if="${1:?missing if}"
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local addr="${2:?missing addr}"
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local fam="${3:-$(addrfam "$addr")}"
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local addrn="$(echo "$addr" | sed 's/\//_/g')"
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local sname="interface.$if.ip.addr.$fam.$addrn"
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bundle_stage_step_ready "$if" "$sname"
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install -Dm644 <(
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header_eb
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header_path
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header_if "$if"
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header_addr "$addr"
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header_fam "$fam"
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echo 'ip -${FAMILY} address add $ADDR dev $INTERFACE'
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) rc/"$sname"/up
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install -Dm644 <(
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header_eb
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header_path
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header_if "$if"
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header_addr "$addr"
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header_fam "$fam"
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echo 'ip -${FAMILY} address del $ADDR dev $INTERFACE'
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) rc/"$sname"/down
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install -Dm644 <(echo oneshot) rc/"$sname"/type
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depends "$sname" interface."$if".link
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}
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if_route_addr() {
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local if="${1:?missing if}"
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local addr="${2:?missing addr}"
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local fam="${3:-$(addrfam "$addr")}"
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local addrn="$(echo "$addr" | sed 's/\//_/g')"
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local sname="interface.$if.route.$fam.$addrn"
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bundle_stage_step_ready "$if" "$sname" # Interface route may be added only if it's up
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install -Dm644 <(
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header_eb
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header_path
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header_if "$if"
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header_addr "$addr"
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header_fam "$fam"
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echo 'ip -${FAMILY} route add to $ADDR dev $INTERFACE'
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) rc/"$sname"/up
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install -Dm644 <(
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header_eb
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header_path
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header_if "$if"
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header_addr "$addr"
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header_fam "$fam"
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echo 'ip -${FAMILY} route del to $ADDR dev $INTERFACE'
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) rc/"$sname"/down
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install -Dm644 <(echo oneshot) rc/"$sname"/type
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depends "$sname" interface."$if".link
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}
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if_route_vrf_addr() {
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local vrf="${1:?missing vrf}"
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local if="${2:?missing if}"
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local addr="${3:?missing addr}"
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local fam="${4:-$(addrfam "$addr")}"
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local addrn="$(echo "$addr" | sed 's/\//_/g')"
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local sname="interface.$if.route.$vrf.$fam.$addrn"
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|
bundle_stage_step_ready "$if" "$sname" # Interface route may be added only if it's up
|
|
|
|
install -Dm644 <(
|
|
header_eb
|
|
header_path
|
|
header_vrf "$vrf"
|
|
header_if "$if"
|
|
header_addr "$addr"
|
|
header_fam "$fam"
|
|
echo 'ip -${FAMILY} route add to $ADDR dev $INTERFACE vrf $VRF'
|
|
) rc/"$sname"/up
|
|
install -Dm644 <(
|
|
header_eb
|
|
header_path
|
|
header_vrf "$vrf"
|
|
header_if "$if"
|
|
header_addr "$addr"
|
|
header_fam "$fam"
|
|
echo 'ip -${FAMILY} route del to $ADDR dev $INTERFACE vrf $VRF'
|
|
) rc/"$sname"/down
|
|
install -Dm644 <(echo oneshot) rc/"$sname"/type
|
|
|
|
depends "$sname" interface."$if".link interface."$vrf".create
|
|
}
|
|
|
|
if_route_vrf_addr_gateway() {
|
|
local vrf="${1:?missing vrf}"
|
|
local if="${2:?missing if}"
|
|
local gateway="${3:?missing gw}"
|
|
local addr="${4:?missing addr}"
|
|
local fam="${5:-$(addrfam "$addr")}"
|
|
local gatewayn="$(echo "$gateway" | sed 's/\//_/g')"
|
|
local addrn="$(echo "$addr" | sed 's/\//_/g')"
|
|
|
|
local sname="interface.$if.gateway.$vrf.$fam.$gatewayn"
|
|
bundle_stage_step_ready "$if" "$sname" # Interface route may be added only if it's up
|
|
|
|
install -Dm644 <(
|
|
header_eb
|
|
header_path
|
|
header_vrf "$vrf"
|
|
header_if "$if"
|
|
header_addr "$gateway"
|
|
header_fam "$fam"
|
|
echo 'ip -${FAMILY} route add default via $ADDR dev $INTERFACE vrf $VRF'
|
|
) rc/"$sname"/up
|
|
install -Dm644 <(
|
|
header_eb
|
|
header_path
|
|
header_vrf "$vrf"
|
|
header_if "$if"
|
|
header_addr "$gateway"
|
|
header_fam "$fam"
|
|
echo 'ip -${FAMILY} route del default via $ADDR dev $INTERFACE vrf $VRF'
|
|
) rc/"$sname"/down
|
|
install -Dm644 <(echo oneshot) rc/"$sname"/type
|
|
|
|
depends "$sname" "interface.$if.route.$vrf.$fam.$addrn" interface."$if".link interface."$vrf".create
|
|
}
|
|
|
|
if_route_vrf_default_interface() {
|
|
local vrf="${1:?missing vrf}"
|
|
local if="${2:?missing if}"
|
|
local fam="${3:-6}"
|
|
|
|
local sname="interface.$vrf.route.$fam.default"
|
|
bundle_stage_step_configure "$vrf" "$sname"
|
|
|
|
install -Dm644 <(
|
|
header_eb
|
|
header_path
|
|
header_vrf "$vrf"
|
|
header_if "$if"
|
|
header_fam "$fam"
|
|
echo 'ip -${FAMILY} route add default dev $INTERFACE vrf $VRF'
|
|
) rc/"$sname"/up
|
|
install -Dm644 <(
|
|
header_eb
|
|
header_path
|
|
header_vrf "$vrf"
|
|
header_if "$if"
|
|
header_fam "$fam"
|
|
echo 'ip -${FAMILY} route del default dev $INTERFACE vrf $VRF'
|
|
) rc/"$sname"/down
|
|
install -Dm644 <(echo oneshot) rc/"$sname"/type
|
|
|
|
depends "$sname" interface."$if".link interface."$vrf".create
|
|
}
|
|
|
|
if_route_vrf_default_unreach() {
|
|
local if="${1:?missing if}"
|
|
local fam="${2:-6}"
|
|
|
|
local sname="interface.$if.route.$fam.unreach"
|
|
bundle_stage_step_configure "$if" "$sname"
|
|
|
|
install -Dm644 <(
|
|
header_eb
|
|
header_path
|
|
header_if "$if"
|
|
header_fam "$fam"
|
|
echo 'ip -${FAMILY} route add unreachable default metric 4096 vrf $INTERFACE'
|
|
) rc/"$sname"/up
|
|
install -Dm644 <(
|
|
header_eb
|
|
header_path
|
|
header_if "$if"
|
|
header_fam "$fam"
|
|
echo 'ip -${FAMILY} route del unreachable default metric 4096 vrf $INTERFACE'
|
|
) rc/"$sname"/down
|
|
install -Dm644 <(echo oneshot) rc/"$sname"/type
|
|
|
|
depends "$sname" interface."$if".create
|
|
}
|
|
|
|
if_route_vrf_sink_unreach() {
|
|
local if="${1:?missing if}"
|
|
local addr="${2:?missing addr}"
|
|
local fam="${3:-$(addrfam "$addr")}"
|
|
local addrn="$(echo "$addr" | sed 's/\//_/g')"
|
|
|
|
local sname="interface.$if.route.$fam.sink.$addrn"
|
|
bundle_stage_step_configure "$if" "$sname"
|
|
|
|
install -Dm644 <(
|
|
header_eb
|
|
header_path
|
|
header_if "$if"
|
|
header_addr "$addr"
|
|
header_fam "$fam"
|
|
echo 'ip -${FAMILY} route add unreachable $ADDR vrf $INTERFACE'
|
|
) rc/"$sname"/up
|
|
install -Dm644 <(
|
|
header_eb
|
|
header_path
|
|
header_if "$if"
|
|
header_addr "$addr"
|
|
header_fam "$fam"
|
|
echo 'ip -${FAMILY} route del unreachable $ADDR vrf $INTERFACE'
|
|
) rc/"$sname"/down
|
|
install -Dm644 <(echo oneshot) rc/"$sname"/type
|
|
|
|
depends "$sname" interface."$if".create
|
|
}
|
|
|
|
#
|
|
# Misc functionality
|
|
#
|
|
|
|
if_linkdepend() {
|
|
local master="${1:?missing master}"
|
|
local slave="${2:?missing slave}"
|
|
|
|
local sname="interface.$master.link"
|
|
|
|
depends "$sname" interface."$slave".link
|
|
}
|