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         local source="$4"
 124
 125         append PROTO_ROUTE "$target/$mask/$gw///$source"
 126 }
 127
 128 proto_add_ipv6_route() {
 129         local target="$1"
 130         local mask="$2"
 131         local gw="$3"
 132         local metric="$4"
 133         local valid="$5"
 134         local source="$6"
 135
 136         append PROTO_ROUTE6 "$target/$mask/$gw/$metric/$valid/$source"
 137 }
 138
 139 proto_add_ipv6_prefix() {
 140         local prefix="$1"
 141         local valid="$2"
 142         local preferred="$3"
 143
 144         if [ -z "$valid" ]; then
 145                 append PROTO_PREFIX6 "$prefix"
 146         else
 147                 [ -z "$preferred" ] && preferred="$valid"
 148                 append PROTO_PREFIX6 "$prefix,$valid,$preferred"
 149         fi
 150 }
 151
 152 _proto_push_ipv4_addr() {
 153         local str="$1"
 154         local address mask broadcast ptp
 155
 156         address="${str%%/*}"
 157         str="${str#*/}"
 158         mask="${str%%/*}"
 159         str="${str#*/}"
 160         broadcast="${str%%/*}"
 161         str="${str#*/}"
 162         ptp="$str"
 163
 164         json_add_object ""
 165         json_add_string ipaddr "$address"
 166         [ -n "$mask" ] && json_add_string mask "$mask"
 167         [ -n "$broadcast" ] && json_add_string broadcast "$broadcast"
 168         [ -n "$ptp" ] && json_add_string ptp "$ptp"
 169         json_close_object
 170 }
 171
 172 _proto_push_ipv6_addr() {
 173         local str="$1"
 174         local address mask preferred valid offlink
 175
 176         address="${str%%/*}"
 177         str="${str#*/}"
 178         mask="${str%%/*}"
 179         str="${str#*/}"
 180         preferred="${str%%/*}"
 181         str="${str#*/}"
 182         valid="${str%%/*}"
 183         str="${str#*/}"
 184         offlink="${str%%/*}"
 185         str="${str#*/}"
 186         class="${str%%/*}"
 187
 188         json_add_object ""
 189         json_add_string ipaddr "$address"
 190         [ -n "$mask" ] && json_add_string mask "$mask"
 191         [ -n "$preferred" ] && json_add_int preferred "$preferred"
 192         [ -n "$valid" ] && json_add_int valid "$valid"
 193         [ -n "$offlink" ] && json_add_boolean offlink "$offlink"
 194         [ -n "$class" ] && json_add_string class "$class"
 195         json_close_object
 196 }
 197
 198 _proto_push_string() {
 199         json_add_string "" "$1"
 200 }
 201
 202 _proto_push_route() {
 203         local str="$1";
 204         local target="${str%%/*}"
 205         str="${str#*/}"
 206         local mask="${str%%/*}"
 207         str="${str#*/}"
 208         local gw="${str%%/*}"
 209         str="${str#*/}"
 210         local metric="${str%%/*}"
 211         str="${str#*/}"
 212         local valid="${str%%/*}"
 213         str="${str#*/}"
 214         local source="${str}"
 215
 216         json_add_object ""
 217         json_add_string target "$target"
 218         json_add_string netmask "$mask"
 219         [ -n "$gw" ] && json_add_string gateway "$gw"
 220         [ -n "$metric" ] && json_add_int metric "$metric"
 221         [ -n "$valid" ] && json_add_int valid "$valid"
 222         [ -n "$source" ] && json_add_string source "$source"
 223         json_close_object
 224 }
 225
 226 _proto_push_array() {
 227         local name="$1"
 228         local val="$2"
 229         local cb="$3"
 230
 231         [ -n "$val" ] || return 0
 232         json_add_array "$name"
 233         for item in $val; do
 234                 eval "$cb \"\$item\""
 235         done
 236         json_close_array
 237 }
 238
 239 _proto_notify() {
 240         local interface="$1"
 241         local options="$2"
 242         json_add_string "interface" "$interface"
 243         ubus $options call network.interface notify_proto "$(json_dump)"
 244 }
 245
 246 proto_send_update() {
 247         local interface="$1"
 248
 249         proto_close_nested
 250         json_add_boolean keep "$PROTO_KEEP"
 251         _proto_push_array "ipaddr" "$PROTO_IPADDR" _proto_push_ipv4_addr
 252         _proto_push_array "ip6addr" "$PROTO_IP6ADDR" _proto_push_ipv6_addr
 253         _proto_push_array "routes" "$PROTO_ROUTE" _proto_push_route
 254         _proto_push_array "routes6" "$PROTO_ROUTE6" _proto_push_route
 255         _proto_push_array "ip6prefix" "$PROTO_PREFIX6" _proto_push_string
 256         _proto_push_array "dns" "$PROTO_DNS" _proto_push_string
 257         _proto_push_array "dns_search" "$PROTO_DNS_SEARCH" _proto_push_string
 258         _proto_notify "$interface"
 259 }
 260
 261 proto_export() {
 262         local var="VAR${_EXPORT_VAR}"
 263         _EXPORT_VAR="$(($_EXPORT_VAR + 1))"
 264         export -- "$var=$1"
 265         append _EXPORT_VARS "$var"
 266 }
 267
 268 proto_run_command() {
 269         local interface="$1"; shift
 270
 271         json_init
 272         json_add_int action 1
 273         json_add_array command
 274         while [ $# -gt 0 ]; do
 275                 json_add_string "" "$1"
 276                 shift
 277         done
 278         json_close_array
 279         [ -n "$_EXPORT_VARS" ] && {
 280                 json_add_array env
 281                 for var in $_EXPORT_VARS; do
 282                         eval "json_add_string \"\" \"\${$var}\""
 283                 done
 284                 json_close_array
 285         }
 286         _proto_notify "$interface"
 287 }
 288
 289 proto_kill_command() {
 290         local interface="$1"; shift
 291
 292         json_init
 293         json_add_int action 2
 294         [ -n "$1" ] && json_add_int signal "$1"
 295         _proto_notify "$interface"
 296 }
 297
 298 proto_notify_error() {
 299         local interface="$1"; shift
 300
 301         json_init
 302         json_add_int action 3
 303         json_add_array error
 304         while [ $# -gt 0 ]; do
 305                 json_add_string "" "$1"
 306                 shift
 307         done
 308         json_close_array
 309         _proto_notify "$interface"
 310 }
 311
 312 proto_block_restart() {
 313         local interface="$1"; shift
 314
 315         json_init
 316         json_add_int action 4
 317         _proto_notify "$interface"
 318 }
 319
 320 proto_set_available() {
 321         local interface="$1"
 322         local state="$2"
 323         json_init
 324         json_add_int action 5
 325         json_add_boolean available "$state"
 326         _proto_notify "$interface"
 327 }
 328
 329 proto_add_host_dependency() {
 330         local interface="$1"
 331         local host="$2"
 332         local ifname="$3"
 333
 334         # execute in subshell to not taint callers env
 335         # see tickets #11046, #11545, #11570
 336         (
 337                 json_init
 338                 json_add_int action 6
 339                 json_add_string host "$host"
 340                 [ -n "$ifname" ] && json_add_string ifname "$ifname"
 341                 _proto_notify "$interface" -S
 342         )
 343 }
 344
 345 proto_setup_failed() {
 346         local interface="$1"
 347         json_init
 348         json_add_int action 7
 349         _proto_notify "$interface"
 350 }
 351
 352 init_proto() {
 353         proto="$1"; shift
 354         cmd="$1"; shift
 355
 356         case "$cmd" in
 357                 dump)
 358                         add_protocol() {
 359                                 no_device=0
 360                                 available=0
 361                                 renew_handler=0
 362
 363                                 add_default_handler "proto_$1_init_config"
 364
 365                                 json_init
 366                                 json_add_string "name" "$1"
 367                                 json_add_array "config"
 368                                 eval "proto_$1_init_config"
 369                                 json_close_array
 370                                 json_add_boolean no-device "$no_device"
 371                                 json_add_boolean available "$available"
 372                                 json_add_boolean renew-handler "$renew_handler"
 373                                 json_dump
 374                         }
 375                 ;;
 376                 setup|teardown|renew)
 377                         interface="$1"; shift
 378                         data="$1"; shift
 379                         ifname="$1"; shift
 380
 381                         add_protocol() {
 382                                 [[ "$proto" == "$1" ]] || return 0
 383
 384                                 case "$cmd" in
 385                                         setup) _proto_do_setup "$1";;
 386                                         teardown) _proto_do_teardown "$1" ;;
 387                                         renew) _proto_do_renew "$1" ;;
 388                                         *) return 1 ;;
 389                                 esac
 390                         }
 391                 ;;
 392         esac
 393 }