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