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         local metric="$5"
 125
 126         append PROTO_ROUTE "$target/$mask/$gw/$metric///$source"
 127 }
 128
 129 proto_add_ipv6_route() {
 130         local target="$1"
 131         local mask="$2"
 132         local gw="$3"
 133         local metric="$4"
 134         local valid="$5"
 135         local source="$6"
 136         local table="$7"
 137
 138         append PROTO_ROUTE6 "$target/$mask/$gw/$metric/$valid/$table/$source"
 139 }
 140
 141 proto_add_ipv6_prefix() {
 142         local prefix="$1"
 143         local valid="$2"
 144         local preferred="$3"
 145
 146         if [ -z "$valid" ]; then
 147                 append PROTO_PREFIX6 "$prefix"
 148         else
 149                 [ -z "$preferred" ] && preferred="$valid"
 150                 append PROTO_PREFIX6 "$prefix,$valid,$preferred"
 151         fi
 152 }
 153
 154 _proto_push_ipv4_addr() {
 155         local str="$1"
 156         local address mask broadcast ptp
 157
 158         address="${str%%/*}"
 159         str="${str#*/}"
 160         mask="${str%%/*}"
 161         str="${str#*/}"
 162         broadcast="${str%%/*}"
 163         str="${str#*/}"
 164         ptp="$str"
 165
 166         json_add_object ""
 167         json_add_string ipaddr "$address"
 168         [ -n "$mask" ] && json_add_string mask "$mask"
 169         [ -n "$broadcast" ] && json_add_string broadcast "$broadcast"
 170         [ -n "$ptp" ] && json_add_string ptp "$ptp"
 171         json_close_object
 172 }
 173
 174 _proto_push_ipv6_addr() {
 175         local str="$1"
 176         local address mask preferred valid offlink
 177
 178         address="${str%%/*}"
 179         str="${str#*/}"
 180         mask="${str%%/*}"
 181         str="${str#*/}"
 182         preferred="${str%%/*}"
 183         str="${str#*/}"
 184         valid="${str%%/*}"
 185         str="${str#*/}"
 186         offlink="${str%%/*}"
 187         str="${str#*/}"
 188         class="${str%%/*}"
 189
 190         json_add_object ""
 191         json_add_string ipaddr "$address"
 192         [ -n "$mask" ] && json_add_string mask "$mask"
 193         [ -n "$preferred" ] && json_add_int preferred "$preferred"
 194         [ -n "$valid" ] && json_add_int valid "$valid"
 195         [ -n "$offlink" ] && json_add_boolean offlink "$offlink"
 196         [ -n "$class" ] && json_add_string class "$class"
 197         json_close_object
 198 }
 199
 200 _proto_push_string() {
 201         json_add_string "" "$1"
 202 }
 203
 204 _proto_push_route() {
 205         local str="$1";
 206         local target="${str%%/*}"
 207         str="${str#*/}"
 208         local mask="${str%%/*}"
 209         str="${str#*/}"
 210         local gw="${str%%/*}"
 211         str="${str#*/}"
 212         local metric="${str%%/*}"
 213         str="${str#*/}"
 214         local valid="${str%%/*}"
 215         str="${str#*/}"
 216         local table="${str%%/*}"
 217         str="${str#*/}"
 218         local source="${str}"
 219
 220         json_add_object ""
 221         json_add_string target "$target"
 222         json_add_string netmask "$mask"
 223         [ -n "$gw" ] && json_add_string gateway "$gw"
 224         [ -n "$metric" ] && json_add_int metric "$metric"
 225         [ -n "$valid" ] && json_add_int valid "$valid"
 226         [ -n "$source" ] && json_add_string source "$source"
 227         [ -n "$table" ] && json_add_string table "$table"
 228         json_close_object
 229 }
 230
 231 _proto_push_array() {
 232         local name="$1"
 233         local val="$2"
 234         local cb="$3"
 235
 236         [ -n "$val" ] || return 0
 237         json_add_array "$name"
 238         for item in $val; do
 239                 eval "$cb \"\$item\""
 240         done
 241         json_close_array
 242 }
 243
 244 _proto_notify() {
 245         local interface="$1"
 246         local options="$2"
 247         json_add_string "interface" "$interface"
 248         ubus $options call network.interface notify_proto "$(json_dump)"
 249 }
 250
 251 proto_send_update() {
 252         local interface="$1"
 253
 254         proto_close_nested
 255         json_add_boolean keep "$PROTO_KEEP"
 256         _proto_push_array "ipaddr" "$PROTO_IPADDR" _proto_push_ipv4_addr
 257         _proto_push_array "ip6addr" "$PROTO_IP6ADDR" _proto_push_ipv6_addr
 258         _proto_push_array "routes" "$PROTO_ROUTE" _proto_push_route
 259         _proto_push_array "routes6" "$PROTO_ROUTE6" _proto_push_route
 260         _proto_push_array "ip6prefix" "$PROTO_PREFIX6" _proto_push_string
 261         _proto_push_array "dns" "$PROTO_DNS" _proto_push_string
 262         _proto_push_array "dns_search" "$PROTO_DNS_SEARCH" _proto_push_string
 263         _proto_notify "$interface"
 264 }
 265
 266 proto_export() {
 267         local var="VAR${_EXPORT_VAR}"
 268         _EXPORT_VAR="$(($_EXPORT_VAR + 1))"
 269         export -- "$var=$1"
 270         append _EXPORT_VARS "$var"
 271 }
 272
 273 proto_run_command() {
 274         local interface="$1"; shift
 275
 276         json_init
 277         json_add_int action 1
 278         json_add_array command
 279         while [ $# -gt 0 ]; do
 280                 json_add_string "" "$1"
 281                 shift
 282         done
 283         json_close_array
 284         [ -n "$_EXPORT_VARS" ] && {
 285                 json_add_array env
 286                 for var in $_EXPORT_VARS; do
 287                         eval "json_add_string \"\" \"\${$var}\""
 288                 done
 289                 json_close_array
 290         }
 291         _proto_notify "$interface"
 292 }
 293
 294 proto_kill_command() {
 295         local interface="$1"; shift
 296
 297         json_init
 298         json_add_int action 2
 299         [ -n "$1" ] && json_add_int signal "$1"
 300         _proto_notify "$interface"
 301 }
 302
 303 proto_notify_error() {
 304         local interface="$1"; shift
 305
 306         json_init
 307         json_add_int action 3
 308         json_add_array error
 309         while [ $# -gt 0 ]; do
 310                 json_add_string "" "$1"
 311                 shift
 312         done
 313         json_close_array
 314         _proto_notify "$interface"
 315 }
 316
 317 proto_block_restart() {
 318         local interface="$1"; shift
 319
 320         json_init
 321         json_add_int action 4
 322         _proto_notify "$interface"
 323 }
 324
 325 proto_set_available() {
 326         local interface="$1"
 327         local state="$2"
 328         json_init
 329         json_add_int action 5
 330         json_add_boolean available "$state"
 331         _proto_notify "$interface"
 332 }
 333
 334 proto_add_host_dependency() {
 335         local interface="$1"
 336         local host="$2"
 337         local ifname="$3"
 338
 339         # execute in subshell to not taint callers env
 340         # see tickets #11046, #11545, #11570
 341         (
 342                 json_init
 343                 json_add_int action 6
 344                 json_add_string host "$host"
 345                 [ -n "$ifname" ] && json_add_string ifname "$ifname"
 346                 _proto_notify "$interface" -S
 347         )
 348 }
 349
 350 proto_setup_failed() {
 351         local interface="$1"
 352         json_init
 353         json_add_int action 7
 354         _proto_notify "$interface"
 355 }
 356
 357 init_proto() {
 358         proto="$1"; shift
 359         cmd="$1"; shift
 360
 361         case "$cmd" in
 362                 dump)
 363                         add_protocol() {
 364                                 no_device=0
 365                                 available=0
 366                                 renew_handler=0
 367
 368                                 add_default_handler "proto_$1_init_config"
 369
 370                                 json_init
 371                                 json_add_string "name" "$1"
 372                                 json_add_array "config"
 373                                 eval "proto_$1_init_config"
 374                                 json_close_array
 375                                 json_add_boolean no-device "$no_device"
 376                                 json_add_boolean available "$available"
 377                                 json_add_boolean renew-handler "$renew_handler"
 378                                 json_dump
 379                         }
 380                 ;;
 381                 setup|teardown|renew)
 382                         interface="$1"; shift
 383                         data="$1"; shift
 384                         ifname="$1"; shift
 385
 386                         add_protocol() {
 387                                 [[ "$proto" == "$1" ]] || return 0
 388
 389                                 case "$cmd" in
 390                                         setup) _proto_do_setup "$1";;
 391                                         teardown) _proto_do_teardown "$1" ;;
 392                                         renew) _proto_do_renew "$1" ;;
 393                                         *) return 1 ;;
 394                                 esac
 395                         }
 396                 ;;
 397         esac
 398 }