applications/luci-splash/root/usr/sbin/luci-splash

   1 #!/usr/bin/lua
   2
   3 utl = require "luci.util"
   4 sys = require "luci.sys"
   5
   6 require("luci.model.uci")
   7 require("luci.sys.iptparser")
   8
   9 -- Init state session
  10 local uci = luci.model.uci.cursor_state()
  11 local ipt = luci.sys.iptparser.IptParser()
  12 local net = sys.net
  13 local fs = require "luci.fs"
  14 local ip = require "luci.ip"
  15
  16 local debug = false
  17
  18 local has_ipv6 = fs.access("/proc/net/ipv6_route") and fs.access("/usr/sbin/ip6tables")
  19
  20 function lock()
  21         os.execute("lock /var/run/luci_splash.lock")
  22 end
  23
  24 function unlock()
  25         os.execute("lock -u /var/run/luci_splash.lock")
  26 end
  27
  28 function exec(cmd)
  29         local ret = sys.exec(cmd)
  30         if debug then
  31                 print('+ ' .. cmd)
  32                 if ret and ret ~= "" then
  33                         print(ret)
  34                 end
  35         end
  36 end
  37
  38 function get_id(ip)
  39         local o3, o4 = ip:match("[0-9]+%.[0-9]+%.([0-9]+)%.([0-9]+)")
  40         if o3 and 04 then
  41                 return string.format("%02X%s", tonumber(o3), "") .. string.format("%02X%s", tonumber(o4), "")
  42         else
  43                 return false
  44         end
  45 end
  46
  47 function update_stats(leased, whitelisted, whitelisttotal, blacklisted, blacklisttotal)
  48         local leases = uci:get_all("luci_splash_leases", "stats")
  49         uci:delete("luci_splash_leases", "stats")
  50         uci:section("luci_splash_leases", "stats", "stats", {
  51                 leases    = leased or (leases and leases.leases) or 0,
  52                 whitelisttotal = whitelisttotal or (leased and leases.whitelisttotal) or 0,
  53                 whitelistonline = whitelisted or (leases and leases.whitelistonline) or 0,
  54                 blacklisttotal = blacklisttotal or (leases and leases.blacklisttotal) or 0,
  55                 blacklistonline = blacklisted or (leases and leases.blacklistonline) or 0,
  56         })
  57         uci:save("luci_splash_leases")
  58 end
  59
  60 function get_device_for_ip(ipaddr)
  61         local dev
  62         uci:foreach("network", "interface", function(s)
  63                 if s.ipaddr and s.netmask then
  64                         local network = ip.IPv4(s.ipaddr, s.netmask)
  65                         if network:contains(ip.IPv4(ipaddr)) then
  66                                 -- this should be rewritten to luci functions if possible
  67                                 dev = utl.trim(sys.exec(". /lib/functions/network.sh; network_get_device IFNAME '" ..  s['.name'] .. "'; echo $IFNAME"))
  68                         end
  69                 end
  70         end)
  71         return dev
  72 end
  73
  74 function get_physdev(interface)
  75         local dev
  76         dev = utl.trim(sys.exec(". /lib/functions/network.sh; network_get_device IFNAME '" ..  interface .. "'; echo $IFNAME"))
  77         return dev
  78 end
  79
  80
  81
  82 function get_filter_handle(parent, direction, device, mac)
  83         local input = utl.split(sys.exec('/usr/sbin/tc filter show dev ' .. device .. ' parent ' .. parent) or {})
  84         local tbl = {}
  85         local handle
  86         for k, v in pairs(input) do
  87                 handle = v:match('filter protocol ip pref %d+ u32 fh (%d*:%d*:%d*) order')
  88                 if handle then
  89                         local mac, mac1, mac2, mac3, mac4, mac5, mac6
  90                         if direction == 'src' then
  91                                 mac1, mac2, mac3, mac4 = input[k+1]:match('match ([%a%d][%a%d])([%a%d][%a%d])([%a%d][%a%d])([%a%d][%a%d])/ffffffff')
  92                                 mac5, mac6 = input[k+2]:match('match ([%a%d][%a%d])([%a%d][%a%d])0000/ffff0000')
  93                         else
  94                                 mac1, mac2 = input[k+1]:match('match 0000([%a%d][%a%d])([%a%d][%a%d])/0000ffff')
  95                                 mac3, mac4, mac5, mac6 = input[k+2]:match('match ([%a%d][%a%d])([%a%d][%a%d])([%a%d][%a%d])([%a%d][%a%d])/ffffffff')
  96                         end
  97                         if mac1 and mac2 and mac3 and mac4 and mac5 and mac6 then
  98                                 mac = "%s:%s:%s:%s:%s:%s" % { mac1, mac2, mac3, mac4, mac5, mac6 }
  99                                 tbl[mac] = handle
 100                         end
 101                 end
 102         end
 103         if tbl[mac] then
 104                 handle = tbl[mac]
 105         end
 106         return handle
 107 end
 108
 109 function main(argv)
 110         local cmd = table.remove(argv, 1)
 111         local arg = argv[1]
 112
 113         limit_up = (tonumber(uci:get("luci_splash", "general", "limit_up")) or 0) * 8
 114         limit_down = (tonumber(uci:get("luci_splash", "general", "limit_down")) or 0) * 8
 115
 116         if ( cmd == "lease" or cmd == "add-rules" or cmd == "remove" or
 117              cmd == "whitelist" or cmd == "blacklist" or cmd == "status" ) and #argv > 0
 118         then
 119                 lock()
 120
 121                 local arp_cache      = net.arptable()
 122                 local leased_macs    = get_known_macs("lease")
 123                 local blacklist_macs = get_known_macs("blacklist")
 124                 local whitelist_macs = get_known_macs("whitelist")
 125
 126                 for i, adr in ipairs(argv) do
 127                         local mac = nil
 128                         if adr:find(":") then
 129                                 mac = adr:lower()
 130                         else
 131                                 for _, e in ipairs(arp_cache) do
 132                                         if e["IP address"] == adr then
 133                                                 mac = e["HW address"]:lower()
 134                                                 break
 135                                         end
 136                                 end
 137                         end
 138
 139                         if mac and cmd == "add-rules" then
 140                                 if leased_macs[mac] then
 141                                         add_lease(mac, arp_cache, true)
 142                                 elseif blacklist_macs[mac] then
 143                                         add_blacklist_rule(mac)
 144                                 elseif whitelist_macs[mac] then
 145                                         add_whitelist_rule(mac)
 146                                 end
 147                         elseif mac and cmd == "status" then
 148                                 print(leased_macs[mac] and "lease"
 149                                         or whitelist_macs[mac] and "whitelist"
 150                                         or blacklist_macs[mac] and "blacklist"
 151                                         or "new")
 152                         elseif mac and ( cmd == "whitelist" or cmd == "blacklist" or cmd == "lease" ) then
 153                                 if cmd ~= "lease" and leased_macs[mac] then
 154                                         print("Removing %s from leases" % mac)
 155                                         remove_lease(mac)
 156                                         leased_macs[mac] = nil
 157                                 end
 158
 159                                 if cmd ~= "whitelist" and whitelist_macs[mac] then
 160                                         print("Removing %s from whitelist" % mac)
 161                                         remove_whitelist(mac)
 162                                         whitelist_macs[mac] = nil
 163                                 end
 164
 165                                 if cmd ~= "blacklist" and blacklist_macs[mac] then
 166                                         print("Removing %s from blacklist" % mac)
 167                                         remove_blacklist(mac)
 168                                         blacklist_macs[mac] = nil
 169                                 end
 170
 171                                 if cmd == "lease" and not leased_macs[mac] then
 172                                         print("Adding %s to leases" % mac)
 173                                         add_lease(mac)
 174                                         leased_macs[mac] = true
 175                                 elseif cmd == "whitelist" and not whitelist_macs[mac] then
 176                                         print("Adding %s to whitelist" % mac)
 177                                         add_whitelist(mac)
 178                                         whitelist_macs[mac] = true
 179                                 elseif cmd == "blacklist" and not blacklist_macs[mac] then
 180                                         print("Adding %s to blacklist" % mac)
 181                                         add_blacklist(mac)
 182                                         blacklist_macs[mac] = true
 183                                 else
 184                                         print("The mac %s is already %sed" %{ mac, cmd })
 185                                 end
 186                         elseif mac and cmd == "remove" then
 187                                 if leased_macs[mac] then
 188                                         print("Removing %s from leases" % mac)
 189                                         remove_lease(mac)
 190                                         leased_macs[mac] = nil
 191                                 elseif whitelist_macs[mac] then
 192                                         print("Removing %s from whitelist" % mac)
 193                                         remove_whitelist(mac)
 194                                         whitelist_macs[mac] = nil
 195                                 elseif blacklist_macs[mac] then
 196                                         print("Removing %s from blacklist" % mac)
 197                                         remove_blacklist(mac)
 198                                         blacklist_macs[mac] = nil
 199                                 else
 200                                         print("The mac %s is not known" % mac)
 201                                 end
 202                         else
 203                                 print("Can not find mac for ip %s" % argv[i])
 204                         end
 205                 end
 206
 207                 unlock()
 208                 os.exit(0)
 209         elseif cmd == "sync" then
 210                 sync()
 211                 os.exit(0)
 212         elseif cmd == "list" then
 213                 list()
 214                 os.exit(0)
 215         else
 216                 print("Usage:")
 217                 print("\n  luci-splash list\n    List connected, black- and whitelisted clients")
 218                 print("\n  luci-splash sync\n    Synchronize firewall rules and clear expired leases")
 219                 print("\n  luci-splash lease <MAC-or-IP>\n    Create a lease for the given address")
 220                 print("\n  luci-splash blacklist <MAC-or-IP>\n    Add given address to blacklist")
 221                 print("\n  luci-splash whitelist <MAC-or-IP>\n    Add given address to whitelist")
 222                 print("\n  luci-splash remove <MAC-or-IP>\n    Remove given address from the lease-, black- or whitelist")
 223                 print("")
 224
 225                 os.exit(1)
 226         end
 227 end
 228
 229 -- Get current arp cache
 230 function get_arpcache()
 231         local arpcache = { }
 232         for _, entry in ipairs(net.arptable()) do
 233                 arpcache[entry["HW address"]:lower()] = { entry["Device"]:lower(), entry["IP address"]:lower() }
 234         end
 235         return arpcache
 236 end
 237
 238 -- Get a list of known mac addresses
 239 function get_known_macs(list)
 240         local leased_macs = { }
 241
 242         if not list or list == "lease" then
 243                 uci:foreach("luci_splash_leases", "lease",
 244                         function(s) leased_macs[s.mac:lower()] = true end)
 245         end
 246
 247         if not list or list == "whitelist" then
 248                 uci:foreach("luci_splash", "whitelist",
 249                         function(s) leased_macs[s.mac:lower()] = true end)
 250         end
 251
 252         if not list or list == "blacklist" then
 253                 uci:foreach("luci_splash", "blacklist",
 254                         function(s) leased_macs[s.mac:lower()] = true end)
 255         end
 256
 257         return leased_macs
 258 end
 259
 260
 261 -- Helper to delete iptables rules
 262 function ipt_delete_all(args, comp, off)
 263         off = off or { }
 264         for i, r in ipairs(ipt:find(args)) do
 265                 if comp == nil or comp(r) then
 266                         off[r.table] = off[r.table] or { }
 267                         off[r.table][r.chain] = off[r.table][r.chain] or 0
 268
 269                         exec("iptables -t %q -D %q %d 2>/dev/null"
 270                                 %{ r.table, r.chain, r.index - off[r.table][r.chain] })
 271
 272                         off[r.table][r.chain] = off[r.table][r.chain] + 1
 273                 end
 274         end
 275 end
 276
 277 function ipt6_delete_all(args, comp, off)
 278         off = off or { }
 279         for i, r in ipairs(ipt:find(args)) do
 280                 if comp == nil or comp(r) then
 281                         off[r.table] = off[r.table] or { }
 282                         off[r.table][r.chain] = off[r.table][r.chain] or 0
 283
 284                         exec("ip6tables -t %q -D %q %d 2>/dev/null"
 285                                 %{ r.table, r.chain, r.index - off[r.table][r.chain] })
 286
 287                         off[r.table][r.chain] = off[r.table][r.chain] + 1
 288                 end
 289         end
 290 end
 291
 292
 293 -- Convert mac to uci-compatible section name
 294 function convert_mac_to_secname(mac)
 295         return string.gsub(mac, ":", "")
 296 end
 297
 298 -- Add a lease to state and invoke add_rule
 299 function add_lease(mac, arp, no_uci)
 300         mac = mac:lower()
 301
 302         -- Get current ip address
 303         local ipaddr
 304         for _, entry in ipairs(arp or net.arptable()) do
 305                 if entry["HW address"]:lower() == mac then
 306                         ipaddr = entry["IP address"]
 307                         break
 308                 end
 309         end
 310
 311         -- Add lease if there is an ip addr
 312         if ipaddr then
 313                 local device = get_device_for_ip(ipaddr)
 314                 if not no_uci then
 315                         local leased = uci:get("luci_splash_leases", "stats", "leases")
 316                         if type(tonumber(leased)) == "number" then
 317                                 update_stats(leased + 1, nil, nil, nil, nil)
 318                         end
 319
 320                         uci:section("luci_splash_leases", "lease", convert_mac_to_secname(mac), {
 321                                 mac    = mac,
 322                                 ipaddr = ipaddr,
 323                                 device = device,
 324                                 limit_up = limit_up,
 325                                 limit_down = limit_down,
 326                                 start  = os.time()
 327                         })
 328                         uci:save("luci_splash_leases")
 329                 end
 330                 add_lease_rule(mac, ipaddr, device)
 331         else
 332                 print("Found no active IP for %s, lease not added" % mac)
 333         end
 334 end
 335
 336
 337 -- Remove a lease from state and invoke remove_rule
 338 function remove_lease(mac)
 339         mac = mac:lower()
 340
 341         uci:delete_all("luci_splash_leases", "lease",
 342                 function(s)
 343                         if s.mac:lower() == mac then
 344                                 remove_lease_rule(mac, s.ipaddr, s.device, tonumber(s.limit_up), tonumber(s.limit_down))
 345                                 local leased = uci:get("luci_splash_leases", "stats", "leases")
 346                                 if type(tonumber(leased)) == "number" and tonumber(leased) > 0 then
 347                                         update_stats(leased - 1, nil, nil, nil, nil)
 348                                 end
 349                                 return true
 350                         end
 351                         return false
 352                 end)
 353
 354         uci:save("luci_splash_leases")
 355 end
 356
 357
 358 -- Add a whitelist entry
 359 function add_whitelist(mac)
 360         uci:section("luci_splash", "whitelist", convert_mac_to_secname(mac), { mac = mac })
 361         uci:save("luci_splash")
 362         uci:commit("luci_splash")
 363         add_whitelist_rule(mac)
 364 end
 365
 366
 367 -- Add a blacklist entry
 368 function add_blacklist(mac)
 369         uci:section("luci_splash", "blacklist", convert_mac_to_secname(mac), { mac = mac })
 370         uci:save("luci_splash")
 371         uci:commit("luci_splash")
 372         add_blacklist_rule(mac)
 373 end
 374
 375
 376 -- Remove a whitelist entry
 377 function remove_whitelist(mac)
 378         mac = mac:lower()
 379         uci:delete_all("luci_splash", "whitelist",
 380                 function(s) return not s.mac or s.mac:lower() == mac end)
 381         uci:save("luci_splash")
 382         uci:commit("luci_splash")
 383         remove_lease_rule(mac)
 384         remove_whitelist_tc(mac)
 385 end
 386
 387 function remove_whitelist_tc(mac)
 388         if debug then
 389                 print("Removing whitelist filters for " .. mac)
 390         end
 391         uci:foreach("luci_splash", "iface", function(s)
 392                 local device = get_physdev(s['.name'])
 393                 local handle = get_filter_handle('ffff:', 'src', device, mac)
 394                 exec('tc filter del dev "%s" parent ffff: protocol ip prio 1 handle %s u32' % { device, handle })
 395                 local handle = get_filter_handle('1:', 'dest', device, mac)
 396                 exec('tc filter del dev "%s" parent 1:0 protocol ip prio 1 handle %s u32' % { device, handle })
 397         end)
 398 end
 399
 400 -- Remove a blacklist entry
 401 function remove_blacklist(mac)
 402         mac = mac:lower()
 403         uci:delete_all("luci_splash", "blacklist",
 404                 function(s) return not s.mac or s.mac:lower() == mac end)
 405         uci:save("luci_splash")
 406         uci:commit("luci_splash")
 407         remove_lease_rule(mac)
 408 end
 409
 410
 411 -- Add an iptables rule
 412 function add_lease_rule(mac, ipaddr, device)
 413         local id
 414         if ipaddr then
 415                 id = get_id(ipaddr)
 416         end
 417
 418         exec("iptables -t mangle -I luci_splash_mark_out -m mac --mac-source %q -j RETURN" % mac)
 419
 420         if id and device then
 421                 exec("iptables -t mangle -I luci_splash_mark_in -d %q -j MARK --set-mark 0x1%s -m comment --comment %s" % {ipaddr, id, mac:upper()})
 422         end
 423
 424         if has_ipv6 then
 425                 exec("ip6tables -t mangle -I luci_splash_mark_out -m mac --mac-source %q -j MARK --set-mark 79" % mac)
 426                 -- not working yet, needs the ip6addr
 427                 --exec("ip6tables -t mangle -I luci_splash_mark_in -d %q -j MARK --set-mark 80 -m comment --comment %s" % {ipaddr, mac:upper()})
 428         end
 429
 430
 431         if device and tonumber(limit_up) > 0 then
 432                 exec('tc filter add dev "%s" parent ffff: protocol ip prio 2 u32 match ether src %s police rate %skbit mtu 6k burst 6k drop' % {device, mac, limit_up})
 433         end
 434
 435         if id and device and tonumber(limit_down) > 0 then
 436                 exec("tc class add dev %s parent 1: classid 1:0x%s htb rate %skbit" % { device, id, limit_down })
 437                 exec("tc qdisc add dev %s parent 1:%s sfq perturb 10" % { device, id })
 438         end
 439
 440         exec("iptables -t filter -I luci_splash_filter -m mac --mac-source %q -j RETURN" % mac)
 441         exec("iptables -t nat    -I luci_splash_leases -m mac --mac-source %q -j RETURN" % mac)
 442         if has_ipv6 then
 443                 exec("ip6tables -t filter -I luci_splash_filter -m mac --mac-source %q -j RETURN" % mac)
 444         end
 445 end
 446
 447
 448 -- Remove lease, black- or whitelist rules
 449 function remove_lease_rule(mac, ipaddr, device, limit_up, limit_down)
 450         local id
 451         if ipaddr then
 452                 id = get_id(ipaddr)
 453         end
 454
 455         ipt:resync()
 456         ipt_delete_all({table="mangle", chain="luci_splash_mark_in", options={"/*", mac:upper()}})
 457         ipt_delete_all({table="mangle", chain="luci_splash_mark_out", options={"MAC", mac:upper()}})
 458         ipt_delete_all({table="filter", chain="luci_splash_filter",   options={"MAC", mac:upper()}})
 459         ipt_delete_all({table="nat",    chain="luci_splash_leases",   options={"MAC", mac:upper()}})
 460         if has_ipv6 then
 461                 ipt6_delete_all({table="mangle", chain="luci_splash_mark_out", options={"MAC", mac:upper()}})
 462                 ipt6_delete_all({table="filter", chain="luci_splash_filter",   options={"MAC", mac:upper()}})
 463         end
 464         if device and tonumber(limit_up) > 0 then
 465                 local handle = get_filter_handle('ffff:', 'src', device, mac)
 466                 if handle then
 467                         exec('tc filter del dev "%s" parent ffff: protocol ip prio 2 handle %s u32 police rate %skbit mtu 6k burst 6k drop' % {device, handle, limit_up})
 468                 end
 469         end
 470
 471         -- remove clients class
 472         if device and id then
 473                 exec('tc class del dev "%s" classid 1:%s' % {device, id})
 474                 exec('tc qdisc del dev "%s" parent 1:%s sfq perturb 10' % { device, id })
 475         end
 476
 477 end
 478
 479
 480 -- Add whitelist rules
 481 function add_whitelist_rule(mac)
 482         exec("iptables -t filter -I luci_splash_filter -m mac --mac-source %q -j RETURN" % mac)
 483         exec("iptables -t nat    -I luci_splash_leases -m mac --mac-source %q -j RETURN" % mac)
 484         if has_ipv6 then
 485                 exec("ip6tables -t filter -I luci_splash_filter -m mac --mac-source %q -j RETURN" % mac)
 486         end
 487         uci:foreach("luci_splash", "iface", function(s)
 488                 local device = get_physdev(s['.name'])
 489                 exec('tc filter add dev "%s" parent ffff: protocol ip prio 1 u32 match ether src %s police pass' % { device, mac })
 490                 exec('tc filter add dev "%s" parent 1:0 protocol ip prio 1 u32 match ether dst %s classid 1:1' % { device, mac })
 491         end)
 492 end
 493
 494
 495 -- Add blacklist rules
 496 function add_blacklist_rule(mac)
 497         exec("iptables -t filter -I luci_splash_filter -m mac --mac-source %q -j DROP" % mac)
 498         if has_ipv6 then
 499                 exec("ip6tables -t filter -I luci_splash_filter -m mac --mac-source %q -j DROP" % mac)
 500         end
 501 end
 502
 503
 504 -- Synchronise leases, remove abandoned rules
 505 function sync()
 506         lock()
 507
 508         local time = os.time()
 509
 510         -- Current leases in state files
 511         local leases = uci:get_all("luci_splash_leases")
 512
 513         -- Convert leasetime to seconds
 514         local leasetime = tonumber(uci:get("luci_splash", "general", "leasetime")) * 3600
 515
 516         -- Clean state file
 517         uci:load("luci_splash_leases")
 518         uci:revert("luci_splash_leases")
 519
 520         -- For all leases
 521         local leasecount = 0
 522         for k, v in pairs(leases) do
 523                 if v[".type"] == "lease" then
 524                         if os.difftime(time, tonumber(v.start)) > leasetime then
 525                                 -- Remove expired
 526                                 remove_lease_rule(v.mac, v.ipaddr, v.device, tonumber(v.limit_up), tonumber(v.limit_down))
 527                         else
 528                                 leasecount = leasecount + 1
 529                                 -- Rewrite state
 530                                 uci:section("luci_splash_leases", "lease", convert_mac_to_secname(v.mac), {
 531                                         mac    = v.mac,
 532                                         ipaddr = v.ipaddr,
 533                                         device = v.device,
 534                                         limit_up = limit_up,
 535                                         limit_down = limit_down,
 536                                         start  = v.start
 537                                 })
 538                         end
 539                 end
 540         end
 541
 542         -- Get the mac addresses of current leases
 543         local macs = get_known_macs()
 544         local arpcache = get_arpcache()
 545
 546         local blackwhitelist = uci:get_all("luci_splash")
 547         local whitelist_total = 0
 548         local whitelist_online = 0
 549         local blacklist_total = 0
 550         local blacklist_online = 0
 551
 552         -- Whitelist, Blacklist
 553         for _, s in utl.spairs(blackwhitelist,
 554                 function(a,b) return blackwhitelist[a][".type"] > blackwhitelist[b][".type"] end
 555         ) do
 556                 if (s[".type"] == "whitelist") then
 557                         whitelist_total = whitelist_total + 1
 558                         if s.mac then
 559                                 local mac = s.mac:lower()
 560                                 if arpcache[mac] then
 561                                         whitelist_online = whitelist_online + 1
 562                                 end
 563                         end
 564                 end
 565                 if (s[".type"] == "blacklist") then
 566                         blacklist_total = blacklist_total + 1
 567                         if s.mac then
 568                                 local mac = s.mac:lower()
 569                                 if arpcache[mac] then
 570                                         blacklist_online = blacklist_online + 1
 571                                 end
 572                         end
 573                 end
 574         end
 575
 576         update_stats(leasecount, whitelist_online, whitelist_total, blacklist_online, blacklist_total)
 577
 578         uci:save("luci_splash_leases")
 579
 580         ipt:resync()
 581
 582         ipt_delete_all({table="filter", chain="luci_splash_filter", options={"MAC"}},
 583                 function(r) return not macs[r.options[2]:lower()] end)
 584         ipt_delete_all({table="nat", chain="luci_splash_leases", options={"MAC"}},
 585                 function(r) return not macs[r.options[2]:lower()] end)
 586         ipt_delete_all({table="mangle", chain="luci_splash_mark_out", options={"MAC", "MARK", "set"}},
 587                 function(r) return not macs[r.options[2]:lower()] end)
 588         ipt_delete_all({table="mangle", chain="luci_splash_mark_in", options={"/*", "MARK", "set"}},
 589                 function(r) return not macs[r.options[2]:lower()] end)
 590
 591
 592         if has_ipv6 then
 593                 ipt6_delete_all({table="filter", chain="luci_splash_filter", options={"MAC"}},
 594                         function(r) return not macs[r.options[2]:lower()] end)
 595                 ipt6_delete_all({table="mangle", chain="luci_splash_mark_out", options={"MAC", "MARK", "set"}},
 596                         function(r) return not macs[r.options[2]:lower()] end)
 597         end
 598
 599         unlock()
 600 end
 601
 602 -- Show client info
 603 function list()
 604         local arpcache = get_arpcache()
 605         -- Find traffic usage
 606         local function traffic(lease)
 607                 local traffic_in  = 0
 608                 local traffic_out = 0
 609
 610                 local rin  = ipt:find({table="mangle", chain="luci_splash_mark_in", destination=lease.ipaddr})
 611                 local rout = ipt:find({table="mangle", chain="luci_splash_mark_out", options={"MAC", lease.mac:upper()}})
 612
 613                 if rin  and #rin  > 0 then traffic_in  = math.floor( rin[1].bytes / 1024) end
 614                 if rout and #rout > 0 then traffic_out = math.floor(rout[1].bytes / 1024) end
 615
 616                 return traffic_in, traffic_out
 617         end
 618
 619         -- Print listings
 620         local leases = uci:get_all("luci_splash_leases")
 621         local blackwhitelist = uci:get_all("luci_splash")
 622
 623         print(string.format(
 624                 "%-17s  %-15s  %-9s  %-4s  %-7s  %20s",
 625                 "MAC", "IP", "State", "Dur.", "Intf.", "Traffic down/up"
 626         ))
 627
 628         -- Leases
 629         for _, s in pairs(leases) do
 630                 if s[".type"] == "lease" and s.mac then
 631                         local ti, to = traffic(s)
 632                         local mac = s.mac:lower()
 633                         local arp = arpcache[mac]
 634                         print(string.format(
 635                                 "%-17s  %-15s  %-9s  %3dm  %-7s  %7dKB  %7dKB",
 636                                 mac, s.ipaddr, "leased",
 637                                 math.floor(( os.time() - tonumber(s.start) ) / 60),
 638                                 arp and arp[1] or "?", ti, to
 639                         ))
 640                 end
 641         end
 642
 643         -- Whitelist, Blacklist
 644         for _, s in utl.spairs(blackwhitelist,
 645                 function(a,b) return blackwhitelist[a][".type"] > blackwhitelist[b][".type"] end
 646         ) do
 647                 if (s[".type"] == "whitelist" or s[".type"] == "blacklist") and s.mac then
 648                         local mac = s.mac:lower()
 649                         local arp = arpcache[mac]
 650                         print(string.format(
 651                                 "%-17s  %-15s  %-9s  %4s  %-7s  %9s  %9s",
 652                                 mac, arp and arp[2] or "?", s[".type"],
 653                                 "- ", arp and arp[1] or "?", "-", "-"
 654                         ))
 655                 end
 656         end
 657 end
 658
 659 main(arg)