mirror of
https://github.com/joelhooks/joelclaw.git
synced 2026-09-19 01:24:04 +08:00
shitratgit[bot]
39 lines
1.2 KiB
Bash
Executable File
39 lines
1.2 KiB
Bash
Executable File
#!/bin/sh
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set -eu
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LABEL="com.joel.mtu-jumbo"
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INTERFACE="${NAS_EXPECTED_INTERFACE:-en0}"
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EXPECTED_MTU="${NAS_EXPECTED_MTU:-8192}"
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SCRIPT_DIR="$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)"
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SOURCE_PLIST="${SCRIPT_DIR}/${LABEL}.plist"
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TARGET_PLIST="/Library/LaunchDaemons/${LABEL}.plist"
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[ "$(id -u)" -eq 0 ] || {
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echo "run with sudo: sudo $0" >&2
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exit 1
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}
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[ "$INTERFACE" = "en0" ] || {
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echo "the tracked plist targets en0; refusing interface $INTERFACE" >&2
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exit 1
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}
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[ "$EXPECTED_MTU" = "8192" ] || {
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echo "the proved Flagg MTU contract is 8192; refusing $EXPECTED_MTU" >&2
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exit 1
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}
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plutil -lint "$SOURCE_PLIST" >/dev/null
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install -o root -g wheel -m 0644 "$SOURCE_PLIST" "$TARGET_PLIST"
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plutil -lint "$TARGET_PLIST" >/dev/null
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launchctl bootout "system/${LABEL}" >/dev/null 2>&1 || true
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launchctl bootstrap system "$TARGET_PLIST"
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launchctl kickstart -k "system/${LABEL}" >/dev/null 2>&1 || true
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ACTIVE_MTU="$(ifconfig "$INTERFACE" | awk '/ mtu / {for (i=1; i<=NF; i += 1) if ($i == "mtu") {print $(i+1); exit}}')"
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[ "$ACTIVE_MTU" = "$EXPECTED_MTU" ] || {
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echo "active ${INTERFACE} MTU is ${ACTIVE_MTU:-unknown}; expected $EXPECTED_MTU" >&2
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exit 1
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}
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echo "installed ${TARGET_PLIST}; ${INTERFACE} MTU=${ACTIVE_MTU}"
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