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="$5"
 109
 110         append PROTO_IP6ADDR "$address/$mask/$preferred/$valid/$offlink"
 111 }
 112
 113 proto_add_ipv4_route() {
 114         local target="$1"
 115         local mask="$2"
 116         local gw="$3"
 117
 118         append PROTO_ROUTE "$target/$mask/$gw//"
 119 }
 120
 121 proto_add_ipv6_route() {
 122         local target="$1"
 123         local mask="$2"
 124         local gw="$3"
 125         local metric="$4"
 126         local valid="$5"
 127         local source="$6"
 128
 129         append PROTO_ROUTE6 "$target/$mask/$gw/$metric/$valid/$source"
 130 }
 131
 132 proto_add_ipv6_prefix() {
 133         local prefix="$1"
 134         local valid="$2"
 135         local preferred="$3"
 136
 137         if [ -z "$valid" ]; then
 138                 append PROTO_PREFIX6 "$prefix"
 139         else
 140                 [ -z "$preferred" ] && preferred="$valid"
 141                 append PROTO_PREFIX6 "$prefix,$valid,$preferred"
 142         fi
 143 }
 144
 145 _proto_push_ipv4_addr() {
 146         local str="$1"
 147         local address mask broadcast ptp
 148
 149         address="${str%%/*}"
 150         str="${str#*/}"
 151         mask="${str%%/*}"
 152         str="${str#*/}"
 153         broadcast="${str%%/*}"
 154         str="${str#*/}"
 155         ptp="$str"
 156
 157         json_add_object ""
 158         json_add_string ipaddr "$address"
 159         [ -n "$mask" ] && json_add_string mask "$mask"
 160         [ -n "$broadcast" ] && json_add_string broadcast "$broadcast"
 161         [ -n "$ptp" ] && json_add_string ptp "$ptp"
 162         json_close_object
 163 }
 164
 165 _proto_push_ipv6_addr() {
 166         local str="$1"
 167         local address mask preferred valid offlink
 168
 169         address="${str%%/*}"
 170         str="${str#*/}"
 171         mask="${str%%/*}"
 172         str="${str#*/}"
 173         preferred="${str%%/*}"
 174         str="${str#*/}"
 175         valid="${str%%/*}"
 176         str="${str#*/}"
 177         offlink="${str%%/*}"
 178
 179         json_add_object ""
 180         json_add_string ipaddr "$address"
 181         [ -n "$mask" ] && json_add_string mask "$mask"
 182         [ -n "$preferred" ] && json_add_int preferred "$preferred"
 183         [ -n "$valid" ] && json_add_int valid "$valid"
 184         [ -n "$offlink" ] && json_add_boolean offlink "$offlink"
 185         json_close_object
 186 }
 187
 188 _proto_push_string() {
 189         json_add_string "" "$1"
 190 }
 191
 192 _proto_push_route() {
 193         local str="$1";
 194         local target="${str%%/*}"
 195         str="${str#*/}"
 196         local mask="${str%%/*}"
 197         str="${str#*/}"
 198         local gw="${str%%/*}"
 199         str="${str#*/}"
 200         local metric="${str%%/*}"
 201         str="${str#*/}"
 202         local valid="${str%%/*}"
 203         str="${str#*/}"
 204         local source="${str}"
 205
 206         json_add_object ""
 207         json_add_string target "$target"
 208         json_add_string netmask "$mask"
 209         [ -n "$gw" ] && json_add_string gateway "$gw"
 210         [ -n "$metric" ] && json_add_int metric "$metric"
 211         [ -n "$valid" ] && json_add_int valid "$valid"
 212         [ -n "$source" ] && json_add_string source "$source"
 213         json_close_object
 214 }
 215
 216 _proto_push_array() {
 217         local name="$1"
 218         local val="$2"
 219         local cb="$3"
 220
 221         [ -n "$val" ] || return 0
 222         json_add_array "$name"
 223         for item in $val; do
 224                 eval "$cb \"\$item\""
 225         done
 226         json_close_array
 227 }
 228
 229 _proto_notify() {
 230         local interface="$1"
 231         local options="$2"
 232         json_add_string "interface" "$interface"
 233         ubus $options call network.interface notify_proto "$(json_dump)"
 234 }
 235
 236 proto_send_update() {
 237         local interface="$1"
 238
 239         proto_close_nested
 240         json_add_boolean keep "$PROTO_KEEP"
 241         _proto_push_array "ipaddr" "$PROTO_IPADDR" _proto_push_ipv4_addr
 242         _proto_push_array "ip6addr" "$PROTO_IP6ADDR" _proto_push_ipv6_addr
 243         _proto_push_array "routes" "$PROTO_ROUTE" _proto_push_route
 244         _proto_push_array "routes6" "$PROTO_ROUTE6" _proto_push_route
 245         _proto_push_array "ip6prefix" "$PROTO_PREFIX6" _proto_push_string
 246         _proto_push_array "dns" "$PROTO_DNS" _proto_push_string
 247         _proto_push_array "dns_search" "$PROTO_DNS_SEARCH" _proto_push_string
 248         _proto_notify "$interface"
 249 }
 250
 251 proto_export() {
 252         local var="VAR${_EXPORT_VAR}"
 253         _EXPORT_VAR="$(($_EXPORT_VAR + 1))"
 254         export -- "$var=$1"
 255         append _EXPORT_VARS "$var"
 256 }
 257
 258 proto_run_command() {
 259         local interface="$1"; shift
 260
 261         json_init
 262         json_add_int action 1
 263         json_add_array command
 264         while [ $# -gt 0 ]; do
 265                 json_add_string "" "$1"
 266                 shift
 267         done
 268         json_close_array
 269         [ -n "$_EXPORT_VARS" ] && {
 270                 json_add_array env
 271                 for var in $_EXPORT_VARS; do
 272                         eval "json_add_string \"\" \"\${$var}\""
 273                 done
 274                 json_close_array
 275         }
 276         _proto_notify "$interface"
 277 }
 278
 279 proto_kill_command() {
 280         local interface="$1"; shift
 281
 282         json_init
 283         json_add_int action 2
 284         [ -n "$1" ] && json_add_int signal "$1"
 285         _proto_notify "$interface"
 286 }
 287
 288 proto_notify_error() {
 289         local interface="$1"; shift
 290
 291         json_init
 292         json_add_int action 3
 293         json_add_array error
 294         while [ $# -gt 0 ]; do
 295                 json_add_string "" "$1"
 296                 shift
 297         done
 298         json_close_array
 299         _proto_notify "$interface"
 300 }
 301
 302 proto_block_restart() {
 303         local interface="$1"; shift
 304
 305         json_init
 306         json_add_int action 4
 307         _proto_notify "$interface"
 308 }
 309
 310 proto_set_available() {
 311         local interface="$1"
 312         local state="$2"
 313         json_init
 314         json_add_int action 5
 315         json_add_boolean available "$state"
 316         _proto_notify "$interface"
 317 }
 318
 319 proto_add_host_dependency() {
 320         local interface="$1"
 321         local host="$2"
 322         local ifname="$3"
 323
 324         # execute in subshell to not taint callers env
 325         # see tickets #11046, #11545, #11570
 326         (
 327                 json_init
 328                 json_add_int action 6
 329                 json_add_string host "$host"
 330                 [ -n "$ifname" ] && json_add_string ifname "$ifname"
 331                 _proto_notify "$interface" -S
 332         )
 333 }
 334
 335 proto_setup_failed() {
 336         local interface="$1"
 337         json_init
 338         json_add_int action 7
 339         _proto_notify "$interface"
 340 }
 341
 342 init_proto() {
 343         proto="$1"; shift
 344         cmd="$1"; shift
 345
 346         case "$cmd" in
 347                 dump)
 348                         add_protocol() {
 349                                 no_device=0
 350                                 available=0
 351
 352                                 add_default_handler "proto_$1_init_config"
 353
 354                                 json_init
 355                                 json_add_string "name" "$1"
 356                                 json_add_array "config"
 357                                 eval "proto_$1_init_config"
 358                                 json_close_array
 359                                 json_add_boolean no-device "$no_device"
 360                                 json_add_boolean available "$available"
 361                                 json_dump
 362                         }
 363                 ;;
 364                 setup|teardown)
 365                         interface="$1"; shift
 366                         data="$1"; shift
 367                         ifname="$1"; shift
 368
 369                         add_protocol() {
 370                                 [[ "$proto" == "$1" ]] || return 0
 371
 372                                 case "$cmd" in
 373                                         setup) _proto_do_setup "$1";;
 374                                         teardown) _proto_do_teardown "$1" ;;
 375                                         *) return 1 ;;
 376                                 esac
 377                         }
 378                 ;;
 379         esac
 380 }