scripts/netifd-proto.sh

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