scripts/netifd-proto.sh

   1 NETIFD_MAIN_DIR="${NETIFD_MAIN_DIR:-/lib/netifd}"
   2 PROTO_DEFAULT_OPTIONS="defaultroute peerdns metric"
   3
   4 . /usr/share/libubox/jshn.sh
   5 . $NETIFD_MAIN_DIR/utils.sh
   6
   7 proto_config_add_int() {
   8         config_add_int "$@"
   9 }
  10
  11 proto_config_add_string() {
  12         config_add_string "$@"
  13 }
  14
  15 proto_config_add_boolean() {
  16         config_add_boolean "$@"
  17 }
  18
  19 proto_config_add_array() {
  20         config_add_array "$@"
  21 }
  22
  23 proto_config_add_defaults() {
  24         proto_config_add_boolean "defaultroute"
  25         proto_config_add_boolean "peerdns"
  26         proto_config_add_int "metric"
  27 }
  28
  29 proto_add_dynamic_defaults() {
  30         [ -n "$defaultroute" ] && json_add_boolean defaultroute "$defaultroute"
  31         [ -n "$peerdns" ] && json_add_boolean peerdns "$peerdns"
  32         [ -n "$metric" ] && json_add_int metric "$metric"
  33 }
  34
  35 _proto_do_teardown() {
  36         json_load "$data"
  37         eval "proto_$1_teardown \"$interface\" \"$ifname\""
  38 }
  39
  40 _proto_do_renew() {
  41         json_load "$data"
  42         eval "proto_$1_renew \"$interface\" \"$ifname\""
  43 }
  44
  45 _proto_do_setup() {
  46         json_load "$data"
  47         _EXPORT_VAR=0
  48         _EXPORT_VARS=
  49         eval "proto_$1_setup \"$interface\" \"$ifname\""
  50 }
  51
  52 proto_init_update() {
  53         local ifname="$1"
  54         local up="$2"
  55         local external="$3"
  56
  57         PROTO_KEEP=0
  58         PROTO_INIT=1
  59         PROTO_TUNNEL_OPEN=
  60         PROTO_IPADDR=
  61         PROTO_IP6ADDR=
  62         PROTO_ROUTE=
  63         PROTO_ROUTE6=
  64         PROTO_PREFIX6=
  65         PROTO_DNS=
  66         PROTO_DNS_SEARCH=
  67         PROTO_NEIGHBOR=
  68         PROTO_NEIGHBOR6=
  69         json_init
  70         json_add_int action 0
  71         [ -n "$ifname" -a "*" != "$ifname" ] && json_add_string "ifname" "$ifname"
  72         json_add_boolean "link-up" "$up"
  73         [ -n "$3" ] && json_add_boolean "address-external" "$external"
  74 }
  75
  76 proto_set_keep() {
  77         PROTO_KEEP="$1"
  78 }
  79
  80 proto_close_nested() {
  81         [ -n "$PROTO_NESTED_OPEN" ] && json_close_object
  82         PROTO_NESTED_OPEN=
  83 }
  84
  85 proto_add_nested() {
  86         PROTO_NESTED_OPEN=1
  87         json_add_object "$1"
  88 }
  89
  90 proto_add_tunnel() {
  91         proto_add_nested "tunnel"
  92 }
  93
  94 proto_close_tunnel() {
  95         proto_close_nested
  96 }
  97
  98 proto_add_data() {
  99         proto_add_nested "data"
 100 }
 101
 102 proto_close_data() {
 103         proto_close_nested
 104 }
 105
 106 proto_add_dns_server() {
 107         local address="$1"
 108
 109         append PROTO_DNS "$address"
 110 }
 111
 112 proto_add_dns_search() {
 113         local address="$1"
 114
 115         append PROTO_DNS_SEARCH "$address"
 116 }
 117
 118 proto_add_ipv4_address() {
 119         local address="$1"
 120         local mask="$2"
 121         local broadcast="$3"
 122         local ptp="$4"
 123
 124         append PROTO_IPADDR "$address/$mask/$broadcast/$ptp"
 125 }
 126
 127 proto_add_ipv6_address() {
 128         local address="$1"
 129         local mask="$2"
 130         local preferred="$3"
 131         local valid="$4"
 132         local offlink="$5"
 133         local class="$6"
 134
 135         append PROTO_IP6ADDR "$address/$mask/$preferred/$valid/$offlink/$class"
 136 }
 137
 138 proto_add_ipv4_neighbor(){
 139         local address="$1"
 140         local mac="$2"
 141         local proxy="$3"
 142
 143         append PROTO_NEIGHBOR "$address/$mac/$proxy"
 144 }
 145
 146 proto_add_ipv6_neighbor(){
 147         local address="$1"
 148         local mac="$2"
 149         local proxy="$3"
 150         local router="$4"
 151
 152         append PROTO_NEIGHBOR6 "$address/$mac/$proxy/$router"
 153 }
 154
 155 proto_add_ipv4_route() {
 156         local target="$1"
 157         local mask="$2"
 158         local gw="$3"
 159         local source="$4"
 160         local metric="$5"
 161
 162         append PROTO_ROUTE "$target/$mask/$gw/$metric///$source"
 163 }
 164
 165 proto_add_ipv6_route() {
 166         local target="$1"
 167         local mask="$2"
 168         local gw="$3"
 169         local metric="$4"
 170         local valid="$5"
 171         local source="$6"
 172         local table="$7"
 173
 174         append PROTO_ROUTE6 "$target/$mask/$gw/$metric/$valid/$table/$source"
 175 }
 176
 177 proto_add_ipv6_prefix() {
 178         local prefix="$1"
 179         local valid="$2"
 180         local preferred="$3"
 181
 182         if [ -z "$valid" ]; then
 183                 append PROTO_PREFIX6 "$prefix"
 184         else
 185                 [ -z "$preferred" ] && preferred="$valid"
 186                 append PROTO_PREFIX6 "$prefix,$valid,$preferred"
 187         fi
 188 }
 189
 190 _proto_push_ipv4_addr() {
 191         local str="$1"
 192         local address mask broadcast ptp
 193
 194         address="${str%%/*}"
 195         str="${str#*/}"
 196         mask="${str%%/*}"
 197         str="${str#*/}"
 198         broadcast="${str%%/*}"
 199         str="${str#*/}"
 200         ptp="$str"
 201
 202         json_add_object ""
 203         json_add_string ipaddr "$address"
 204         [ -n "$mask" ] && json_add_string mask "$mask"
 205         [ -n "$broadcast" ] && json_add_string broadcast "$broadcast"
 206         [ -n "$ptp" ] && json_add_string ptp "$ptp"
 207         json_close_object
 208 }
 209
 210 _proto_push_ipv6_addr() {
 211         local str="$1"
 212         local address mask preferred valid offlink
 213
 214         address="${str%%/*}"
 215         str="${str#*/}"
 216         mask="${str%%/*}"
 217         str="${str#*/}"
 218         preferred="${str%%/*}"
 219         str="${str#*/}"
 220         valid="${str%%/*}"
 221         str="${str#*/}"
 222         offlink="${str%%/*}"
 223         str="${str#*/}"
 224         class="${str%%/*}"
 225
 226         json_add_object ""
 227         json_add_string ipaddr "$address"
 228         [ -n "$mask" ] && json_add_string mask "$mask"
 229         [ -n "$preferred" ] && json_add_int preferred "$preferred"
 230         [ -n "$valid" ] && json_add_int valid "$valid"
 231         [ -n "$offlink" ] && json_add_boolean offlink "$offlink"
 232         [ -n "$class" ] && json_add_string class "$class"
 233         json_close_object
 234 }
 235
 236 _proto_push_string() {
 237         json_add_string "" "$1"
 238 }
 239
 240 _proto_push_ipv4_neighbor(){
 241         local str="$1"
 242         local address mac proxy
 243
 244         address="${str%%/*}"
 245         str="${str#*/}"
 246         mac="${str%%/*}"
 247         str="${str#*/}"
 248         proxy="${str%%/*}"
 249
 250         json_add_object ""
 251         json_add_string ipaddr "$address"
 252         [ -n "$mac" ] && json_add_string mac "$mac"
 253         [ -n "$proxy" ] && json_add_boolean proxy "$proxy"
 254         json_close_object
 255 }
 256
 257 _proto_push_ipv6_neighbor(){
 258         local str="$1"
 259         local address mac proxy router
 260
 261         address="${str%%/*}"
 262         str="${str#*/}"
 263         mac="${str%%/*}"
 264         str="${str#*/}"
 265         proxy="${str%%/*}"
 266         str="${str#*/}"
 267         router="${str%%/*}"
 268
 269         json_add_object ""
 270         json_add_string ipaddr "$address"
 271         [ -n "$mac" ] && json_add_string mac "$mac"
 272         [ -n "$proxy" ] && json_add_boolean proxy "$proxy"
 273         [ -n "$router" ] && json_add_boolean router "$router"
 274         json_close_object
 275 }
 276
 277 _proto_push_route() {
 278         local str="$1";
 279         local target="${str%%/*}"
 280         str="${str#*/}"
 281         local mask="${str%%/*}"
 282         str="${str#*/}"
 283         local gw="${str%%/*}"
 284         str="${str#*/}"
 285         local metric="${str%%/*}"
 286         str="${str#*/}"
 287         local valid="${str%%/*}"
 288         str="${str#*/}"
 289         local table="${str%%/*}"
 290         str="${str#*/}"
 291         local source="${str}"
 292
 293         json_add_object ""
 294         json_add_string target "$target"
 295         json_add_string netmask "$mask"
 296         [ -n "$gw" ] && json_add_string gateway "$gw"
 297         [ -n "$metric" ] && json_add_int metric "$metric"
 298         [ -n "$valid" ] && json_add_int valid "$valid"
 299         [ -n "$source" ] && json_add_string source "$source"
 300         [ -n "$table" ] && json_add_string table "$table"
 301         json_close_object
 302 }
 303
 304 _proto_push_array() {
 305         local name="$1"
 306         local val="$2"
 307         local cb="$3"
 308
 309         [ -n "$val" ] || return 0
 310         json_add_array "$name"
 311         for item in $val; do
 312                 eval "$cb \"\$item\""
 313         done
 314         json_close_array
 315 }
 316
 317 _proto_notify() {
 318         local interface="$1"
 319         local options="$2"
 320         json_add_string "interface" "$interface"
 321         ubus $options call network.interface notify_proto "$(json_dump)"
 322 }
 323
 324 proto_send_update() {
 325         local interface="$1"
 326
 327         proto_close_nested
 328         json_add_boolean keep "$PROTO_KEEP"
 329         _proto_push_array "ipaddr" "$PROTO_IPADDR" _proto_push_ipv4_addr
 330         _proto_push_array "ip6addr" "$PROTO_IP6ADDR" _proto_push_ipv6_addr
 331         _proto_push_array "routes" "$PROTO_ROUTE" _proto_push_route
 332         _proto_push_array "routes6" "$PROTO_ROUTE6" _proto_push_route
 333         _proto_push_array "ip6prefix" "$PROTO_PREFIX6" _proto_push_string
 334         _proto_push_array "dns" "$PROTO_DNS" _proto_push_string
 335         _proto_push_array "dns_search" "$PROTO_DNS_SEARCH" _proto_push_string
 336         _proto_push_array "neighbor" "$PROTO_NEIGHBOR" _proto_push_ipv4_neighbor
 337         _proto_push_array "neighbor6" "$PROTO_NEIGHBOR6" _proto_push_ipv6_neighbor
 338         _proto_notify "$interface"
 339 }
 340
 341 proto_export() {
 342         local var="VAR${_EXPORT_VAR}"
 343         _EXPORT_VAR="$(($_EXPORT_VAR + 1))"
 344         export -- "$var=$1"
 345         append _EXPORT_VARS "$var"
 346 }
 347
 348 proto_run_command() {
 349         local interface="$1"; shift
 350
 351         json_init
 352         json_add_int action 1
 353         json_add_array command
 354         while [ $# -gt 0 ]; do
 355                 json_add_string "" "$1"
 356                 shift
 357         done
 358         json_close_array
 359         [ -n "$_EXPORT_VARS" ] && {
 360                 json_add_array env
 361                 for var in $_EXPORT_VARS; do
 362                         eval "json_add_string \"\" \"\${$var}\""
 363                 done
 364                 json_close_array
 365         }
 366         _proto_notify "$interface"
 367 }
 368
 369 proto_kill_command() {
 370         local interface="$1"; shift
 371
 372         json_init
 373         json_add_int action 2
 374         [ -n "$1" ] && json_add_int signal "$1"
 375         _proto_notify "$interface"
 376 }
 377
 378 proto_notify_error() {
 379         local interface="$1"; shift
 380
 381         json_init
 382         json_add_int action 3
 383         json_add_array error
 384         while [ $# -gt 0 ]; do
 385                 json_add_string "" "$1"
 386                 shift
 387         done
 388         json_close_array
 389         _proto_notify "$interface"
 390 }
 391
 392 proto_block_restart() {
 393         local interface="$1"; shift
 394
 395         json_init
 396         json_add_int action 4
 397         _proto_notify "$interface"
 398 }
 399
 400 proto_set_available() {
 401         local interface="$1"
 402         local state="$2"
 403         json_init
 404         json_add_int action 5
 405         json_add_boolean available "$state"
 406         _proto_notify "$interface"
 407 }
 408
 409 proto_add_host_dependency() {
 410         local interface="$1"
 411         local host="$2"
 412         local ifname="$3"
 413
 414         # execute in subshell to not taint callers env
 415         # see tickets #11046, #11545, #11570
 416         (
 417                 json_init
 418                 json_add_int action 6
 419                 json_add_string host "$host"
 420                 [ -n "$ifname" ] && json_add_string ifname "$ifname"
 421                 _proto_notify "$interface" -S
 422         )
 423 }
 424
 425 proto_setup_failed() {
 426         local interface="$1"
 427         json_init
 428         json_add_int action 7
 429         _proto_notify "$interface"
 430 }
 431
 432 init_proto() {
 433         proto="$1"; shift
 434         cmd="$1"; shift
 435
 436         case "$cmd" in
 437                 dump)
 438                         add_protocol() {
 439                                 no_device=0
 440                                 no_proto_task=0
 441                                 available=0
 442                                 renew_handler=0
 443                                 teardown_on_l3_link_down=0
 444
 445                                 add_default_handler "proto_$1_init_config"
 446
 447                                 json_init
 448                                 json_add_string "name" "$1"
 449                                 json_add_array "config"
 450                                 eval "proto_$1_init_config"
 451                                 json_close_array
 452                                 json_add_boolean no-device "$no_device"
 453                                 json_add_boolean no-proto-task "$no_proto_task"
 454                                 json_add_boolean available "$available"
 455                                 json_add_boolean renew-handler "$renew_handler"
 456                                 json_add_boolean lasterror "$lasterror"
 457                                 json_add_boolean teardown-on-l3-link-down "$teardown_on_l3_link_down"
 458                                 json_dump
 459                         }
 460                 ;;
 461                 setup|teardown|renew)
 462                         interface="$1"; shift
 463                         data="$1"; shift
 464                         ifname="$1"; shift
 465
 466                         add_protocol() {
 467                                 [[ "$proto" == "$1" ]] || return 0
 468
 469                                 case "$cmd" in
 470                                         setup) _proto_do_setup "$1";;
 471                                         teardown) _proto_do_teardown "$1" ;;
 472                                         renew) _proto_do_renew "$1" ;;
 473                                         *) return 1 ;;
 474                                 esac
 475                         }
 476                 ;;
 477         esac
 478 }