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Delete .github/diy/packages/luci-mod-status/root/usr/lib/lua/luci/controller/netstat.lua
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module("luci.controller.netstat", package.seeall)
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local nixio = require("nixio")
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local uci = require("luci.model.uci").cursor()
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function index()
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entry({"admin", "tools"}, firstchild(), _("Tools"), 50).dependent = false
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entry({"admin", "tools", "netstat"}, cbi("netstat/config"), _("Netstat"), 20).leaf = true
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entry({"admin", "tools", "netstat_config"}, alias("admin", "tools", "netstat")).dependent = true
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entry({"admin", "tools", "get_netdev_stats"}, call("getNetdevStats"), nil).sysauth = false
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end
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-- Reads /proc/net/dev and returns per-interface rx/tx byte counters.
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function getNetdevStats()
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local f = io.open("/proc/net/dev", "r")
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if not f then
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luci.http.prepare_content("application/json")
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luci.http.write('{"stats":{},"ip":"N/A","status":"Disconnected"}')
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return
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end
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local content = f:read("*a")
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f:close()
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local stats = {}
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for line in content:gmatch("[^\n]+") do
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local iface, values = line:match("^%s*([^:]+):%s+(.*)$")
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if iface and values then
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local nums = {}
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for num in values:gmatch("%d+") do
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table.insert(nums, tonumber(num))
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end
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if #nums >= 9 then
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stats[iface] = { rx = nums[1], tx = nums[9] }
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end
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end
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end
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-- Quick connectivity check
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local status = "Disconnected"
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for iface, data in pairs(stats) do
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if iface ~= "lo" and (data.rx > 0 or data.tx > 0) then
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status = "Connected"
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break
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end
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end
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-- ── IP detection ─────────────────────────────────────────────────────────
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-- Strategy: try a single fast HTTP call first (2 s timeout), then fall
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-- back to local ubus/ifstatus which is instant. The old code tried 11
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-- commands with 4 s timeouts each – worst-case 44 s of blocking.
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local function read_cmd(cmd)
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local p = io.popen(cmd)
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if not p then return nil end
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local line = p:read("*l")
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p:close()
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if not line then return nil end
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line = line:gsub("^%s+",""):gsub("%s+$","")
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return line ~= "" and line or nil
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end
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-- ── Preferred interface resolution ──────────────────────────────────────
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-- The "Preferred Interface" setting may hold either a real netdev name
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-- (e.g. "eth2", "wwan0_1") or a logical/config interface name (e.g.
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-- "modem", "wan") that has no matching key in /proc/net/dev. In the
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-- latter case resolve it to its actual l3_device via ubus so traffic
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-- stats can be found.
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local prefer_iface = ""
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do
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local prefer = uci:get_first("netstats", "config", "prefer") or ""
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-- Only allow safe characters before using it in a shell command.
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if prefer ~= "" and prefer:match("^[%w%-%._]+$") then
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if stats[prefer] then
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prefer_iface = prefer
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else
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local l3 = read_cmd(
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"ubus call network.interface." .. prefer ..
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" status 2>/dev/null | jsonfilter -e '@.l3_device'"
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)
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if l3 and stats[l3] then
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prefer_iface = l3
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end
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end
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end
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-- Nothing configured (or unresolvable): use the default-route device
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-- so idle interfaces named "wan"/"eth1" don't win over the real uplink.
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if prefer_iface == "" then
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local dev = read_cmd("ip route show default 2>/dev/null | awk '{for(i=1;i<NF;i++) if($i==\"dev\"){print $(i+1); exit}}'")
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if dev and dev:match("^[%w%-%._]+$") and stats[dev] then
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prefer_iface = dev
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end
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end
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end
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local function is_valid_ip(v)
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if not v then return false end
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local a,b,c,d = v:match("^(%d+)%.(%d+)%.(%d+)%.(%d+)$")
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if a and b and c and d then
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a,b,c,d = tonumber(a),tonumber(b),tonumber(c),tonumber(d)
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if a<=255 and b<=255 and c<=255 and d<=255 then return true end
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end
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if v:find(":",1,true) and v:match("^[%x:]+$") then return true end
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return false
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end
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local ip = "N/A"
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-- Determine whether the caller wants a public IP (slow, requires network)
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-- or just the fast local WAN address. The JS frontend sends ?fast=1 for
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-- poll ticks and omits it only when explicitly requesting a public IP refresh.
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local want_public = luci.http.formvalue("fast") ~= "1"
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-- 1. Try public-IP APIs (only when not in fast mode)
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if want_public then
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local public_cmds = {
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"curl -fsS --max-time 1 'https://api.ipify.org' 2>/dev/null",
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"curl -fsS --max-time 1 'http://api.ipify.org' 2>/dev/null",
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"uclient-fetch -qO- --timeout=1 'https://api.ipify.org' 2>/dev/null",
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}
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for _, cmd in ipairs(public_cmds) do
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local v = read_cmd(cmd)
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if is_valid_ip(v) then ip = v; break end
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end
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end
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-- 2. Fall back to local WAN address (instant, no network needed)
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if ip == "N/A" then
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local local_cmds = {
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-- wan IPv4
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"ubus call network.interface.wan status 2>/dev/null | jsonfilter -e '@[\"ipv4-address\"][0].address'",
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"ifstatus wan 2>/dev/null | jsonfilter -e '@[\"ipv4-address\"][0].address'",
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-- wan IPv6
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"ubus call network.interface.wan status 2>/dev/null | jsonfilter -e '@[\"ipv6-address\"][0].address'",
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"ubus call network.interface.wan6 status 2>/dev/null | jsonfilter -e '@[\"ipv6-address\"][0].address'",
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}
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for _, cmd in ipairs(local_cmds) do
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local v = read_cmd(cmd)
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if is_valid_ip(v) then ip = v; break end
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end
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end
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-- ── System uptime ─────────────────────────────────────────────────────────
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local uptime_sec = 0
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local uf = io.open("/proc/uptime", "r")
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if uf then
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local line = uf:read("*l")
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uf:close()
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if line then
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uptime_sec = math.floor(tonumber(line:match("^([%d%.]+)")) or 0)
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end
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end
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-- ── CPU usage (two reads 200 ms apart for accurate delta) ────────────────
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local cpu_pct = 0
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local function read_cpu_stat()
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local f = io.open("/proc/stat", "r")
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if not f then return nil end
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local line = f:read("*l"); f:close()
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local vals = {}
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for n in line:gmatch("%d+") do vals[#vals+1] = tonumber(n) end
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if #vals < 4 then return nil end
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local idle, total = vals[4], 0
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for _, v in ipairs(vals) do total = total + v end
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return { idle = idle, total = total }
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end
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local s1 = read_cpu_stat()
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if s1 then
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nixio.nanosleep(0, 200000000)
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local s2 = read_cpu_stat()
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if s2 then
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local d_total = s2.total - s1.total
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local d_idle = s2.idle - s1.idle
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if d_total > 0 then
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cpu_pct = math.floor((d_total - d_idle) / d_total * 100 + 0.5)
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end
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end
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end
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-- ── Memory usage ──────────────────────────────────────────────────────────
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local mem_total, mem_available, mem_free = 0, 0, 0
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local mf = io.open("/proc/meminfo", "r")
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if mf then
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for line in mf:lines() do
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local k, v = line:match("^(%S+):%s+(%d+)")
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if k == "MemTotal" then mem_total = tonumber(v) or 0 end
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if k == "MemAvailable" then mem_available = tonumber(v) or 0 end
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if k == "MemFree" then mem_free = tonumber(v) or 0 end
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end
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mf:close()
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end
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-- MemAvailable is present on Linux 3.14+; fall back to MemFree on older kernels
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if mem_available == 0 and mem_free > 0 then mem_available = mem_free end
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local mem_pct = 0
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if mem_total > 0 then
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mem_pct = math.floor((mem_total - mem_available) / mem_total * 100 + 0.5)
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end
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-- used MB and total MB for display
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local mem_used_mb = math.floor((mem_total - mem_available) / 1024 + 0.5)
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local mem_total_mb = math.floor(mem_total / 1024 + 0.5)
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-- ── Disk space (root filesystem) ──────────────────────────────────────────
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local disk_pct, disk_used_mb, disk_total_mb = 0, 0, 0
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local df = read_cmd("df -k / 2>/dev/null | awk 'NR==2{print $2,$3}'")
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if df then
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local dtotal, dused = df:match("^(%d+)%s+(%d+)$")
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dtotal = tonumber(dtotal) or 0
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dused = tonumber(dused) or 0
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if dtotal > 0 then
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disk_pct = math.floor(dused / dtotal * 100 + 0.5)
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disk_used_mb = math.floor(dused / 1024 + 0.5)
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disk_total_mb = math.floor(dtotal / 1024 + 0.5)
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end
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end
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-- ── CPU temperature ───────────────────────────────────────────────────────
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local cpu_temp = nil
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-- Scan all available thermal zones and pick the highest valid reading
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-- (avoids hardcoded zone numbers which vary per device)
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for zone = 0, 9 do
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local path = "/sys/class/thermal/thermal_zone" .. zone .. "/temp"
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local tf = io.open(path, "r")
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if tf then
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local val = tf:read("*l")
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tf:close()
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local t = tonumber(val)
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if t and t > 0 then
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-- values > 1000 are in millidegrees
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if t > 1000 then t = t / 1000 end
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t = math.floor(t + 0.5)
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-- Keep the highest temperature reading across all zones
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if cpu_temp == nil or t > cpu_temp then
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cpu_temp = t
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end
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end
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end
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end
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luci.http.prepare_content("application/json")
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luci.http.write_json({ stats = stats, ip = ip, status = status,
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prefer_iface = prefer_iface,
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uptime = uptime_sec,
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cpu_pct = cpu_pct,
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cpu_temp = cpu_temp,
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mem_pct = mem_pct,
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mem_used = mem_used_mb,
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mem_total = mem_total_mb,
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disk_pct = disk_pct,
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disk_used = disk_used_mb,
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disk_total = disk_total_mb })
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end
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