package/network/services/dnsmasq/files/dnsmasq.init

   1 #!/bin/sh /etc/rc.common
   2 # Copyright (C) 2007-2012 OpenWrt.org
   3
   4 START=19
   5
   6 USE_PROCD=1
   7 PROG=/usr/sbin/dnsmasq
   8
   9 DNS_SERVERS=""
  10 DOMAIN=""
  11
  12 ADD_LOCAL_DOMAIN=1
  13 ADD_LOCAL_HOSTNAME=1
  14
  15 CONFIGFILE="/var/etc/dnsmasq.conf"
  16 CONFIGFILE_TMP="/var/etc/dnsmasq.conf.$$"
  17 HOSTFILE="/tmp/hosts/dhcp"
  18 TRUSTANCHORSFILE="/usr/share/dnsmasq/trust-anchors.conf"
  19 TIMESTAMPFILE="/etc/dnsmasq.time"
  20 TIMEVALIDFILE="/var/state/dnsmasqsec"
  21
  22 xappend() {
  23         local value="$1"
  24
  25         echo "${value#--}" >> $CONFIGFILE_TMP
  26 }
  27
  28 hex_to_hostid() {
  29         local var="$1"
  30         local hex="${2#0x}"     # strip optional "0x" prefix
  31
  32         if [ -n "${hex//[0-9a-fA-F]/}" ]; then
  33                 # is invalid hex literal
  34                 return 1
  35         fi
  36
  37         # convert into host id
  38         export "$var=$(
  39                 printf "%0x:%0x"  \
  40                         $(((0x$hex >> 16) % 65536)) \
  41                         $(( 0x$hex        % 256))
  42         )"
  43
  44         return 0
  45 }
  46
  47 dhcp_calc() {
  48         local ip="$1"
  49         local res=0
  50
  51         while [ -n "$ip" ]; do
  52                 part="${ip%%.*}"
  53                 res="$(($res * 256))"
  54                 res="$(($res + $part))"
  55                 [ "${ip%.*}" != "$ip" ] && ip="${ip#*.}" || ip=
  56         done
  57         echo "$res"
  58 }
  59
  60 dhcp_check() {
  61         local ifname="$1"
  62         local stamp="/var/run/dnsmasq.$ifname.dhcp"
  63         local rv=0
  64
  65         [ -s "$stamp" ] && return $(cat "$stamp")
  66
  67         # If there's no carrier yet, skip this interface.
  68         # The init script will be called again once the link is up
  69         case "$(devstatus "$ifname" | jsonfilter -e @.carrier)" in
  70                 false) return 1;;
  71         esac
  72
  73         udhcpc -n -q -s /bin/true -t 1 -i "$ifname" >&- && rv=1 || rv=0
  74
  75         [ $rv -eq 1 ] && \
  76                 logger -t dnsmasq \
  77                         "found already running DHCP-server on interface '$ifname'" \
  78                         "refusing to start, use 'option force 1' to override"
  79
  80         echo $rv > "$stamp"
  81         return $rv
  82 }
  83
  84 log_once() {
  85         pidof dnsmasq >/dev/null || \
  86                 logger -t dnsmasq "$@"
  87 }
  88
  89 append_bool() {
  90         local section="$1"
  91         local option="$2"
  92         local value="$3"
  93         local _loctmp
  94         config_get_bool _loctmp "$section" "$option" 0
  95         [ $_loctmp -gt 0 ] && xappend "$value"
  96 }
  97
  98 append_parm() {
  99         local section="$1"
 100         local option="$2"
 101         local switch="$3"
 102         local default="$4"
 103         local _loctmp
 104         config_get _loctmp "$section" "$option" "$default"
 105         [ -z "$_loctmp" ] && return 0
 106         xappend "$switch=$_loctmp"
 107 }
 108
 109 append_server() {
 110         xappend "--server=$1"
 111 }
 112
 113 append_address() {
 114         xappend "--address=$1"
 115 }
 116
 117 append_ipset() {
 118         xappend "--ipset=$1"
 119 }
 120
 121 append_interface() {
 122         network_get_device ifname "$1" || return
 123         xappend "--interface=$ifname"
 124 }
 125
 126 append_notinterface() {
 127         network_get_device ifname "$1" || return
 128         xappend "--except-interface=$ifname"
 129 }
 130
 131 append_addnhosts() {
 132         xappend "--addn-hosts=$1"
 133 }
 134
 135 append_bogusnxdomain() {
 136         xappend "--bogus-nxdomain=$1"
 137 }
 138
 139 append_pxe_service() {
 140         xappend "--pxe-service=$1"
 141 }
 142
 143 dnsmasq() {
 144         local cfg="$1"
 145         append_bool "$cfg" authoritative "--dhcp-authoritative"
 146         append_bool "$cfg" nodaemon "--no-daemon"
 147         append_bool "$cfg" domainneeded "--domain-needed"
 148         append_bool "$cfg" filterwin2k "--filterwin2k"
 149         append_bool "$cfg" nohosts "--no-hosts"
 150         append_bool "$cfg" nonegcache "--no-negcache"
 151         append_bool "$cfg" strictorder "--strict-order"
 152         append_bool "$cfg" logqueries "--log-queries=extra"
 153         append_bool "$cfg" noresolv "--no-resolv"
 154         append_bool "$cfg" localise_queries "--localise-queries"
 155         append_bool "$cfg" readethers "--read-ethers"
 156         append_bool "$cfg" dbus "--enable-dbus"
 157         append_bool "$cfg" boguspriv "--bogus-priv"
 158         append_bool "$cfg" expandhosts "--expand-hosts"
 159         config_get tftp_root "$cfg" "tftp_root"
 160         [ -d "$tftp_root" ] && append_bool "$cfg" enable_tftp "--enable-tftp"
 161         append_bool "$cfg" tftp_no_fail "--tftp-no-fail"
 162         append_bool "$cfg" nonwildcard "--bind-dynamic"
 163         append_bool "$cfg" fqdn "--dhcp-fqdn"
 164         append_bool "$cfg" proxydnssec "--proxy-dnssec"
 165         append_bool "$cfg" localservice "--local-service"
 166         append_bool "$cfg" quietdhcp "--quiet-dhcp"
 167         append_bool "$cfg" sequential_ip "--dhcp-sequential-ip"
 168         append_bool "$cfg" allservers "--all-servers"
 169         append_bool "$cfg" noping "--no-ping"
 170
 171         append_parm "$cfg" dhcpscript "--dhcp-script"
 172         append_parm "$cfg" cachesize "--cache-size"
 173         append_parm "$cfg" dnsforwardmax "--dns-forward-max"
 174         append_parm "$cfg" port "--port"
 175         append_parm "$cfg" ednspacket_max "--edns-packet-max"
 176         append_parm "$cfg" dhcpleasemax "--dhcp-lease-max"
 177         append_parm "$cfg" "queryport" "--query-port"
 178         append_parm "$cfg" "minport" "--min-port"
 179         append_parm "$cfg" "maxport" "--max-port"
 180         append_parm "$cfg" "domain" "--domain"
 181         append_parm "$cfg" "local" "--server"
 182         config_list_foreach "$cfg" "server" append_server
 183         config_list_foreach "$cfg" "address" append_address
 184         config_list_foreach "$cfg" "ipset" append_ipset
 185         config_list_foreach "$cfg" "interface" append_interface
 186         config_list_foreach "$cfg" "notinterface" append_notinterface
 187         config_list_foreach "$cfg" "addnhosts" append_addnhosts
 188         config_list_foreach "$cfg" "bogusnxdomain" append_bogusnxdomain
 189         append_parm "$cfg" "leasefile" "--dhcp-leasefile" "/tmp/dhcp.leases"
 190         append_parm "$cfg" "resolvfile" "--resolv-file" "/tmp/resolv.conf.auto"
 191         append_parm "$cfg" "serversfile" "--servers-file"
 192         append_parm "$cfg" "tftp_root" "--tftp-root"
 193         append_parm "$cfg" "dhcp_boot" "--dhcp-boot"
 194         append_parm "$cfg" "local_ttl" "--local-ttl"
 195         append_parm "$cfg" "pxe_prompt" "--pxe-prompt"
 196         config_list_foreach "$cfg" "pxe_service" append_pxe_service
 197         config_get DOMAIN "$cfg" domain
 198
 199         config_get_bool ADD_LOCAL_DOMAIN "$cfg" add_local_domain 1
 200         config_get_bool ADD_LOCAL_HOSTNAME "$cfg" add_local_hostname 1
 201
 202         config_get_bool readethers "$cfg" readethers
 203         [ "$readethers" = "1" -a \! -e "/etc/ethers" ] && touch /etc/ethers
 204
 205         config_get leasefile $cfg leasefile "/tmp/dhcp.leases"
 206         [ -n "$leasefile" -a \! -e "$leasefile" ] && touch "$leasefile"
 207         config_get_bool cachelocal "$cfg" cachelocal 1
 208
 209         config_get_bool noresolv "$cfg" noresolv 0
 210         if [ "$noresolv" != "1" ]; then
 211                 config_get resolvfile "$cfg" resolvfile "/tmp/resolv.conf.auto"
 212                 # So jail doesn't complain if file missing
 213                 [ -n "$resolvfile" -a \! -e "$resolvfile" ] && touch "$resolvfile"
 214         fi
 215
 216         config_get hostsfile "$cfg" dhcphostsfile
 217         [ -e "$hostsfile" ] && xappend "--dhcp-hostsfile=$hostsfile"
 218
 219         local rebind
 220         config_get_bool rebind "$cfg" rebind_protection 1
 221         [ $rebind -gt 0 ] && {
 222                 log_once \
 223                         "DNS rebinding protection is active," \
 224                         "will discard upstream RFC1918 responses!"
 225                 xappend "--stop-dns-rebind"
 226
 227                 local rebind_localhost
 228                 config_get_bool rebind_localhost "$cfg" rebind_localhost 0
 229                 [ $rebind_localhost -gt 0 ] && {
 230                         log_once "Allowing 127.0.0.0/8 responses"
 231                         xappend "--rebind-localhost-ok"
 232                 }
 233
 234                 append_rebind_domain() {
 235                         log_once "Allowing RFC1918 responses for domain $1"
 236                         xappend "--rebind-domain-ok=$1"
 237                 }
 238
 239                 config_list_foreach "$cfg" rebind_domain append_rebind_domain
 240         }
 241
 242         config_get_bool dnssec "$cfg" dnssec 0
 243         [ "$dnssec" -gt 0 ] && {
 244                 xappend "--conf-file=$TRUSTANCHORSFILE"
 245                 xappend "--dnssec"
 246                 [ -x /etc/init.d/sysntpd ] && {
 247                         /etc/init.d/sysntpd enabled
 248                         [ "$?" -ne 0 -o "$(uci_get system.ntp.enabled)" = "1" ] && {
 249                                 [ -f "$TIMEVALIDFILE" ] || xappend "--dnssec-no-timecheck"
 250                         }
 251                 }
 252                 append_bool "$cfg" dnsseccheckunsigned "--dnssec-check-unsigned"
 253         }
 254
 255         dhcp_option_add "$cfg" "" 0
 256
 257         xappend "--dhcp-broadcast=tag:needs-broadcast"
 258
 259         mkdir -p /tmp/hosts /tmp/dnsmasq.d
 260         xappend "--addn-hosts=/tmp/hosts"
 261         xappend "--conf-dir=/tmp/dnsmasq.d"
 262         xappend "--user=dnsmasq"
 263         xappend "--group=dnsmasq"
 264
 265         echo >> $CONFIGFILE_TMP
 266
 267         config_get_bool enable_tftp "$cfg" enable_tftp 0
 268         [ "$enable_tftp" -gt 0 ] && {
 269                 config_get tftp_root "$cfg" tftp_root
 270                 append EXTRA_MOUNT $tftp_root
 271         }
 272 }
 273
 274 dhcp_subscrid_add() {
 275         local cfg="$1"
 276
 277         config_get networkid "$cfg" networkid
 278         [ -n "$networkid" ] || return 0
 279
 280         config_get subscriberid "$cfg" subscriberid
 281         [ -n "$subscriberid" ] || return 0
 282
 283         xappend "--dhcp-subscrid=$networkid,$subscriberid"
 284
 285         config_get_bool force "$cfg" force 0
 286
 287         dhcp_option_add "$cfg" "$networkid" "$force"
 288 }
 289
 290 dhcp_remoteid_add() {
 291         local cfg="$1"
 292
 293         config_get networkid "$cfg" networkid
 294         [ -n "$networkid" ] || return 0
 295
 296         config_get remoteid "$cfg" remoteid
 297         [ -n "$remoteid" ] || return 0
 298
 299         xappend "--dhcp-remoteid=$networkid,$remoteid"
 300
 301         config_get_bool force "$cfg" force 0
 302
 303         dhcp_option_add "$cfg" "$networkid" "$force"
 304 }
 305
 306 dhcp_circuitid_add() {
 307         local cfg="$1"
 308
 309         config_get networkid "$cfg" networkid
 310         [ -n "$networkid" ] || return 0
 311
 312         config_get circuitid "$cfg" circuitid
 313         [ -n "$circuitid" ] || return 0
 314
 315         xappend "--dhcp-circuitid=$networkid,$circuitid"
 316
 317         config_get_bool force "$cfg" force 0
 318
 319         dhcp_option_add "$cfg" "$networkid" "$force"
 320 }
 321
 322 dhcp_userclass_add() {
 323         local cfg="$1"
 324
 325         config_get networkid "$cfg" networkid
 326         [ -n "$networkid" ] || return 0
 327
 328         config_get userclass "$cfg" userclass
 329         [ -n "$userclass" ] || return 0
 330
 331         xappend "--dhcp-userclass=$networkid,$userclass"
 332
 333         config_get_bool force "$cfg" force 0
 334
 335         dhcp_option_add "$cfg" "$networkid" "$force"
 336 }
 337
 338 dhcp_vendorclass_add() {
 339         local cfg="$1"
 340
 341         config_get networkid "$cfg" networkid
 342         [ -n "$networkid" ] || return 0
 343
 344         config_get vendorclass "$cfg" vendorclass
 345         [ -n "$vendorclass" ] || return 0
 346
 347         xappend "--dhcp-vendorclass=$networkid,$vendorclass"
 348
 349         config_get_bool force "$cfg" force 0
 350
 351         dhcp_option_add "$cfg" "$networkid" "$force"
 352 }
 353
 354 dhcp_match_add() {
 355         local cfg="$1"
 356
 357         config_get networkid "$cfg" networkid
 358         [ -n "$networkid" ] || return 0
 359
 360         config_get match "$cfg" match
 361         [ -n "$match" ] || return 0
 362
 363         xappend "--dhcp-match=$networkid,$match"
 364
 365         config_get_bool force "$cfg" force 0
 366
 367         dhcp_option_add "$cfg" "$networkid" "$force"
 368 }
 369
 370 dhcp_host_add() {
 371         local cfg="$1"
 372
 373         config_get_bool force "$cfg" force 0
 374
 375         config_get networkid "$cfg" networkid
 376         [ -n "$networkid" ] && dhcp_option_add "$cfg" "$networkid" "$force"
 377
 378         config_get_bool enable "$cfg" enable 1
 379         [ "$enable" = "0" ] && return 0
 380
 381         config_get name "$cfg" name
 382         config_get ip "$cfg" ip
 383         [ -n "$ip" -o -n "$name" ] || return 0
 384
 385         config_get_bool dns "$cfg" dns 0
 386         [ "$dns" = "1" -a -n "$ip" -a -n "$name" ] && {
 387                 echo "$ip $name${DOMAIN:+.$DOMAIN}" >> $HOSTFILE
 388         }
 389
 390         config_get mac "$cfg" mac
 391         if [ -n "$mac" ]; then
 392                 # --dhcp-host=00:20:e0:3b:13:af,192.168.0.199,lap
 393                 macs=""
 394                 for m in $mac; do append macs "$m" ","; done
 395         else
 396                 # --dhcp-host=lap,192.168.0.199
 397                 [ -n "$name" ] || return 0
 398                 macs="$name"
 399                 name=""
 400         fi
 401
 402         config_get tag "$cfg" tag
 403
 404         if [ "$DHCPv6CAPABLE" -eq 1 ]; then
 405                 config_get hostid "$cfg" hostid
 406                 if [ -n "$hostid" ]; then
 407                         hex_to_hostid hostid "$hostid"
 408                 fi
 409         fi
 410
 411         config_get_bool broadcast "$cfg" broadcast 0
 412         [ "$broadcast" = "0" ] && broadcast=
 413
 414         config_get leasetime "$cfg" leasetime
 415
 416         xappend "--dhcp-host=$macs${networkid:+,net:$networkid}${broadcast:+,set:needs-broadcast}${tag:+,set:$tag}${ip:+,$ip${hostid:+,[::$hostid]}}${name:+,$name}${leasetime:+,$leasetime}"
 417 }
 418
 419 dhcp_tag_add() {
 420         local cfg="$1"
 421
 422         tag="$cfg"
 423
 424         [ -n "$tag" ] || return 0
 425
 426         config_get_bool force "$cfg" force 0
 427         [ "$force" = "0" ] && force=
 428
 429         config_get option "$cfg" dhcp_option
 430         for o in $option; do
 431                 xappend "--dhcp-option${force:+-force}=tag:$tag,$o"
 432         done
 433 }
 434
 435 dhcp_mac_add() {
 436         local cfg="$1"
 437
 438         config_get networkid "$cfg" networkid
 439         [ -n "$networkid" ] || return 0
 440
 441         config_get mac "$cfg" mac
 442         [ -n "$mac" ] || return 0
 443
 444         xappend "--dhcp-mac=$networkid,$mac"
 445
 446         dhcp_option_add "$cfg" "$networkid"
 447 }
 448
 449 dhcp_boot_add() {
 450         local cfg="$1"
 451
 452         config_get networkid "$cfg" networkid
 453
 454         config_get filename "$cfg" filename
 455         [ -n "$filename" ] || return 0
 456
 457         config_get servername "$cfg" servername
 458         config_get serveraddress "$cfg" serveraddress
 459
 460         [ -n "$serveraddress" -a ! -n "$servername" ] && return 0
 461
 462         xappend "--dhcp-boot=${networkid:+net:$networkid,}${filename}${servername:+,$servername}${serveraddress:+,$serveraddress}"
 463
 464         config_get_bool force "$cfg" force 0
 465
 466         dhcp_option_add "$cfg" "$networkid" "$force"
 467 }
 468
 469
 470 dhcp_add() {
 471         local cfg="$1"
 472         config_get net "$cfg" interface
 473         [ -n "$net" ] || return 0
 474
 475         config_get dhcpv4 "$cfg" dhcpv4
 476         [ "$dhcpv4" != "disabled" ] || return 0
 477
 478         config_get networkid "$cfg" networkid
 479         [ -n "$networkid" ] || networkid="$net"
 480
 481         network_get_subnet subnet "$net" || return 0
 482         network_get_device ifname "$net" || return 0
 483         network_get_protocol proto "$net" || return 0
 484
 485         [ "$cachelocal" = "0" ] && network_get_dnsserver dnsserver "$net" && {
 486                 DNS_SERVERS="$DNS_SERVERS $dnsserver"
 487         }
 488
 489         append_bool "$cfg" ignore "--no-dhcp-interface=$ifname" && return 0
 490
 491         # Do not support non-static interfaces for now
 492         [ static = "$proto" ] || return 0
 493
 494         # Override interface netmask with dhcp config if applicable
 495         config_get netmask "$cfg" netmask "${subnet##*/}"
 496
 497         #check for an already active dhcp server on the interface, unless 'force' is set
 498         config_get_bool force "$cfg" force 0
 499         [ $force -gt 0 ] || dhcp_check "$ifname" || return 0
 500
 501         config_get start "$cfg" start
 502         config_get limit "$cfg" limit
 503         config_get leasetime "$cfg" leasetime
 504         config_get options "$cfg" options
 505         config_get_bool dynamicdhcp "$cfg" dynamicdhcp 1
 506
 507         leasetime="${leasetime:-12h}"
 508         start="$(dhcp_calc "${start:-100}")"
 509         limit="${limit:-150}"
 510         [ "$limit" -gt 0 ] && limit=$((limit-1))
 511         eval "$(ipcalc.sh "${subnet%%/*}" $netmask $start $limit)"
 512         if [ "$dynamicdhcp" = "0" ]; then END="static"; fi
 513         xappend "--dhcp-range=$networkid,$START,$END,$NETMASK,$leasetime${options:+ $options}"
 514
 515         dhcp_option_add "$cfg" "$networkid"
 516 }
 517
 518 dhcp_option_add() {
 519         local cfg="$1"
 520         local networkid="$2"
 521         local force="$3"
 522
 523         [ "$force" = "0" ] && force=
 524
 525         config_get dhcp_option "$cfg" dhcp_option
 526         for o in $dhcp_option; do
 527                 xappend "--dhcp-option${force:+-force}=${networkid:+$networkid,}$o"
 528         done
 529
 530 }
 531
 532 dhcp_domain_add() {
 533         local cfg="$1"
 534         local ip name names record
 535
 536         config_get names "$cfg" name "$2"
 537         [ -n "$names" ] || return 0
 538
 539         config_get ip "$cfg" ip "$3"
 540         [ -n "$ip" ] || return 0
 541
 542         for name in $names; do
 543                 record="${record:+$record }$name"
 544         done
 545
 546         echo "$ip $record" >> $HOSTFILE
 547 }
 548
 549 dhcp_srv_add() {
 550         local cfg="$1"
 551
 552         config_get srv "$cfg" srv
 553         [ -n "$srv" ] || return 0
 554
 555         config_get target "$cfg" target
 556         [ -n "$target" ] || return 0
 557
 558         config_get port "$cfg" port
 559         [ -n "$port" ] || return 0
 560
 561         config_get class "$cfg" class
 562         config_get weight "$cfg" weight
 563
 564         local service="$srv,$target,$port${class:+,$class${weight:+,$weight}}"
 565
 566         xappend "--srv-host=$service"
 567 }
 568
 569 dhcp_mx_add() {
 570         local cfg="$1"
 571         local domain relay pref
 572
 573         config_get domain "$cfg" domain
 574         [ -n "$domain" ] || return 0
 575
 576         config_get relay "$cfg" relay
 577         [ -n "$relay" ] || return 0
 578
 579         config_get pref "$cfg" pref 0
 580
 581         local service="$domain,$relay,$pref"
 582
 583         xappend "--mx-host=$service"
 584 }
 585
 586 dhcp_cname_add() {
 587         local cfg="$1"
 588         local cname target
 589
 590         config_get cname "$cfg" cname
 591         [ -n "$cname" ] || return 0
 592
 593         config_get target "$cfg" target
 594         [ -n "$target" ] || return 0
 595
 596         xappend "--cname=${cname},${target}"
 597 }
 598
 599 dhcp_hostrecord_add() {
 600         local cfg="$1"
 601         local names addresses record val
 602
 603         config_get names "$cfg" name "$2"
 604         if [ -z "$names" ]; then
 605                 return 0
 606         fi
 607
 608         config_get addresses "$cfg" ip "$3"
 609         if [ -z "$addresses" ]; then
 610                 return 0
 611         fi
 612
 613         for val in $names $addresses; do
 614                 record="${record:+$record,}$val"
 615         done
 616
 617         xappend "--host-record=$record"
 618 }
 619
 620 dhcp_relay_add() {
 621         local cfg="$1"
 622         local local_addr server_addr interface
 623
 624         config_get local_addr "$cfg" local_addr
 625         [ -n "$local_addr" ] || return 0
 626
 627         config_get server_addr "$cfg" server_addr
 628         [ -n "$server_addr" ] || return 0
 629
 630         config_get interface "$cfg" interface
 631         if [ -z "$interface" ]; then
 632                 xappend "--dhcp-relay=$local_addr,$server_addr"
 633         else
 634                 xappend "--dhcp-relay=$local_addr,$server_addr,$interface"
 635         fi
 636 }
 637
 638 service_triggers()
 639 {
 640         procd_add_reload_trigger "dhcp"
 641         procd_add_raw_trigger "interface.*" 2000 /etc/init.d/dnsmasq reload
 642 }
 643
 644 boot()
 645 {
 646         BOOT=1
 647         start "$@"
 648 }
 649
 650 start_service() {
 651         [ -n "$BOOT" ] && return
 652
 653         include /lib/functions
 654
 655         config_load dhcp
 656
 657         # before we can call xappend
 658         mkdir -p /var/run/dnsmasq/
 659         mkdir -p $(dirname $CONFIGFILE)
 660         mkdir -p /var/lib/misc
 661         touch /tmp/dhcp.leases
 662         chown dnsmasq:dnsmasq /var/run/dnsmasq
 663
 664         [ -f "$TIMESTAMPFILE" ] && rm -f "$TIMESTAMPFILE"
 665
 666         echo "# auto-generated config file from /etc/config/dhcp" > $CONFIGFILE_TMP
 667         echo "# auto-generated config file from /etc/config/dhcp" > $HOSTFILE
 668
 669         # if we did this last, we could override auto-generated config
 670         [ -f /etc/dnsmasq.conf ] && {
 671                 xappend "--conf-file=/etc/dnsmasq.conf"
 672         }
 673
 674         $PROG --version | grep -osqE "^Compile time options:.* DHCPv6( |$)" && DHCPv6CAPABLE=1 || DHCPv6CAPABLE=0
 675
 676         args=""
 677         config_foreach dnsmasq dnsmasq
 678         config_foreach dhcp_host_add host
 679         echo >> $CONFIGFILE_TMP
 680         config_foreach dhcp_boot_add boot
 681         config_foreach dhcp_mac_add mac
 682         config_foreach dhcp_tag_add tag
 683         config_foreach dhcp_vendorclass_add vendorclass
 684         config_foreach dhcp_userclass_add userclass
 685         config_foreach dhcp_circuitid_add circuitid
 686         config_foreach dhcp_remoteid_add remoteid
 687         config_foreach dhcp_subscrid_add subscrid
 688         config_foreach dhcp_match_add match
 689         config_foreach dhcp_domain_add domain
 690         config_foreach dhcp_hostrecord_add hostrecord
 691         config_foreach dhcp_relay_add relay
 692
 693         # add own hostname
 694         [ $ADD_LOCAL_HOSTNAME -eq 1 ] && {
 695                 local lanaddr lanaddr6
 696                 local ulaprefix="$(uci_get network @globals[0] ula_prefix)"
 697                 local hostname="$(uci_get system @system[0] hostname Lede)"
 698
 699                 network_get_ipaddr lanaddr "lan" && {
 700                         dhcp_domain_add "" "$hostname" "$lanaddr"
 701                 }
 702
 703                 [ -n "$ulaprefix" ] && network_get_ipaddrs6 lanaddr6 "lan" && {
 704                         for lanaddr6 in $lanaddr6; do
 705                                 case "$lanaddr6" in
 706                                         "${ulaprefix%%:/*}"*)
 707                                                 dhcp_domain_add "" "$hostname" "$lanaddr6"
 708                                         ;;
 709                                 esac
 710                         done
 711                 }
 712         }
 713
 714         echo >> $CONFIGFILE_TMP
 715         config_foreach dhcp_srv_add srvhost
 716         config_foreach dhcp_mx_add mxhost
 717         echo >> $CONFIGFILE_TMP
 718
 719         config_get odhcpd_is_active odhcpd maindhcp
 720         if [ "$odhcpd_is_active" != "1" ]; then
 721                 config_foreach dhcp_add dhcp
 722         fi
 723
 724         echo >> $CONFIGFILE_TMP
 725         config_foreach dhcp_cname_add cname
 726         echo >> $CONFIGFILE_TMP
 727         mv -f $CONFIGFILE_TMP $CONFIGFILE
 728
 729         rm -f /tmp/resolv.conf
 730         [ $ADD_LOCAL_DOMAIN -eq 1 ] && [ -n "$DOMAIN" ] && {
 731                 echo "search $DOMAIN" >> /tmp/resolv.conf
 732         }
 733         DNS_SERVERS="$DNS_SERVERS 127.0.0.1"
 734         for DNS_SERVER in $DNS_SERVERS ; do
 735                 echo "nameserver $DNS_SERVER" >> /tmp/resolv.conf
 736         done
 737
 738         procd_open_instance
 739         procd_set_param command $PROG -C $CONFIGFILE -k -x /var/run/dnsmasq/dnsmasq.pid
 740         procd_set_param file $CONFIGFILE
 741         procd_set_param respawn
 742
 743         procd_add_jail dnsmasq ubus log
 744         procd_add_jail_mount $CONFIGFILE $TRUSTANCHORSFILE $HOSTFILE /etc/passwd /etc/group /etc/TZ /dev/null /dev/urandom /etc/dnsmasq.conf /tmp/dnsmasq.d /tmp/resolv.conf.auto /etc/hosts /etc/ethers $EXTRA_MOUNT
 745         procd_add_jail_mount_rw /var/run/dnsmasq/ /tmp/dhcp.leases
 746
 747         procd_close_instance
 748 }
 749
 750 reload_service() {
 751         rc_procd start_service "$@"
 752         return 0
 753 }
 754
 755 stop_service() {
 756         [ -f /tmp/resolv.conf ] && {
 757                 rm -f /tmp/resolv.conf
 758                 ln -s /tmp/resolv.conf.auto /tmp/resolv.conf
 759         }
 760         rm -f /var/run/dnsmasq.*.dhcp
 761 }