dummy/netifd-proto.sh

   1 . /usr/share/libubox/jshn.sh
   2
   3 append() {
   4         local var="$1"
   5         local value="$2"
   6         local sep="${3:- }"
   7
   8         eval "export -- \"$var=\${$var:+\${$var}\${value:+\$sep}}\$value\""
   9 }
  10
  11 proto_config_add_generic() {
  12         json_add_array ""
  13         json_add_string "" "$1"
  14         json_add_int "" "$2"
  15         json_close_array
  16 }
  17
  18 proto_config_add_int() {
  19         proto_config_add_generic "$1" 5
  20 }
  21
  22 proto_config_add_string() {
  23         proto_config_add_generic "$1" 3
  24 }
  25
  26 proto_config_add_boolean() {
  27         proto_config_add_generic "$1" 7
  28 }
  29
  30 add_default_handler() {
  31         case "$(type $1 2>/dev/null)" in
  32                 *function*) return;;
  33                 *) eval "$1() { return; }"
  34         esac
  35 }
  36
  37 _proto_do_teardown() {
  38         json_load "$data"
  39         eval "proto_$1_teardown \"$interface\" \"$ifname\""
  40 }
  41
  42 _proto_do_setup() {
  43         json_load "$data"
  44         _EXPORT_VAR=0
  45         _EXPORT_VARS=
  46         eval "proto_$1_setup \"$interface\" \"$ifname\""
  47 }
  48
  49 proto_init_update() {
  50         local ifname="$1"
  51         local up="$2"
  52         local external="$3"
  53
  54         PROTO_KEEP=0
  55         PROTO_INIT=1
  56         PROTO_TUNNEL_OPEN=
  57         PROTO_IPADDR=
  58         PROTO_IP6ADDR=
  59         PROTO_ROUTE=
  60         PROTO_ROUTE6=
  61         PROTO_PREFIX6=
  62         PROTO_DNS=
  63         PROTO_DNS_SEARCH=
  64         json_init
  65         json_add_int action 0
  66         [ -n "$ifname" -a "*" != "$ifname" ] && json_add_string "ifname" "$ifname"
  67         json_add_boolean "link-up" "$up"
  68         [ -n "$3" ] && json_add_boolean "address-external" "$external"
  69 }
  70
  71 proto_set_keep() {
  72         PROTO_KEEP="$1"
  73 }
  74
  75 proto_close_nested() {
  76         [ -n "$PROTO_NESTED_OPEN" ] && json_close_object
  77         PROTO_NESTED_OPEN=
  78 }
  79
  80 proto_add_nested() {
  81         PROTO_NESTED_OPEN=1
  82         json_add_object "$1"
  83 }
  84
  85 proto_add_tunnel() {
  86         proto_add_nested "tunnel"
  87 }
  88
  89 proto_close_tunnel() {
  90         proto_close_nested
  91 }
  92
  93 proto_add_data() {
  94         proto_add_nested "data"
  95 }
  96
  97 proto_close_data() {
  98         proto_close_nested
  99 }
 100
 101 proto_add_dns_server() {
 102         local address="$1"
 103
 104         append PROTO_DNS "$address"
 105 }
 106
 107 proto_add_dns_search() {
 108         local address="$1"
 109
 110         append PROTO_DNS_SEARCH "$address"
 111 }
 112
 113 proto_add_ipv4_address() {
 114         local address="$1"
 115         local mask="$2"
 116         local broadcast="$3"
 117         local ptp="$4"
 118
 119         append PROTO_IPADDR "$address/$mask/$broadcast/$ptp"
 120 }
 121
 122 proto_add_ipv6_address() {
 123         local address="$1"
 124         local mask="$2"
 125         local preferred="$3"
 126         local valid="$4"
 127         local offlink="$5"
 128
 129         append PROTO_IP6ADDR "$address/$mask/$preferred/$valid/$offlink"
 130 }
 131
 132 proto_add_ipv4_route() {
 133         local target="$1"
 134         local mask="$2"
 135         local gw="$3"
 136
 137         append PROTO_ROUTE "$target/$mask/$gw//"
 138 }
 139
 140 proto_add_ipv6_route() {
 141         local target="$1"
 142         local mask="$2"
 143         local gw="$3"
 144         local metric="$4"
 145         local valid="$5"
 146
 147         append PROTO_ROUTE6 "$target/$mask/$gw/$metric/$valid"
 148 }
 149
 150 proto_add_ipv6_prefix() {
 151         local prefix="$1"
 152         local valid="$2"
 153         local preferred="$3"
 154
 155         if [ -z "$valid" ]; then
 156                 append PROTO_PREFIX6 "$prefix"
 157         else
 158                 [ -z "$preferred" ] && preferred="$valid"
 159                 append PROTO_PREFIX6 "$prefix,$valid,$preferred"
 160         fi
 161 }
 162
 163 _proto_push_ipv4_addr() {
 164         local str="$1"
 165         local address mask broadcast ptp
 166
 167         address="${str%%/*}"
 168         str="${str#*/}"
 169         mask="${str%%/*}"
 170         str="${str#*/}"
 171         broadcast="${str%%/*}"
 172         str="${str#*/}"
 173         ptp="$str"
 174
 175         json_add_object ""
 176         json_add_string ipaddr "$address"
 177         [ -n "$mask" ] && json_add_string mask "$mask"
 178         [ -n "$broadcast" ] && json_add_string broadcast "$broadcast"
 179         [ -n "$ptp" ] && json_add_string ptp "$ptp"
 180         json_close_object
 181 }
 182
 183 _proto_push_ipv6_addr() {
 184         local str="$1"
 185         local address mask preferred valid offlink
 186
 187         address="${str%%/*}"
 188         str="${str#*/}"
 189         mask="${str%%/*}"
 190         str="${str#*/}"
 191         preferred="${str%%/*}"
 192         str="${str#*/}"
 193         valid="${str%%/*}"
 194         str="${str#*/}"
 195         offlink="${str%%/*}"
 196
 197         json_add_object ""
 198         json_add_string ipaddr "$address"
 199         [ -n "$mask" ] && json_add_string mask "$mask"
 200         [ -n "$preferred" ] && json_add_int preferred "$preferred"
 201         [ -n "$valid" ] && json_add_int valid "$valid"
 202         [ -n "$offlink" ] && json_add_boolean offlink "$offlink"
 203         json_close_object
 204 }
 205
 206 _proto_push_string() {
 207         json_add_string "" "$1"
 208 }
 209
 210 _proto_push_route() {
 211         local str="$1";
 212         local target="${str%%/*}"
 213         str="${str#*/}"
 214         local mask="${str%%/*}"
 215         str="${str#*/}"
 216         local gw="${str%%/*}"
 217         str="${str#*/}"
 218         local metric="${str%%/*}"
 219         str="${str#*/}"
 220         local valid="${str%%/*}"
 221
 222         json_add_object ""
 223         json_add_string target "$target"
 224         json_add_string netmask "$mask"
 225         [ -n "$gw" ] && json_add_string gateway "$gw"
 226         [ -n "$metric" ] && json_add_int metric "$metric"
 227         [ -n "$valid" ] && json_add_int valid "$valid"
 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
 367                                 add_default_handler "proto_$1_init_config"
 368
 369                                 json_init
 370                                 json_add_string "name" "$1"
 371                                 json_add_array "config"
 372                                 eval "proto_$1_init_config"
 373                                 json_close_array
 374                                 json_add_boolean no-device "$no_device"
 375                                 json_add_boolean available "$available"
 376                                 json_dump
 377                         }
 378                 ;;
 379                 setup|teardown)
 380                         interface="$1"; shift
 381                         data="$1"; shift
 382                         ifname="$1"; shift
 383
 384                         add_protocol() {
 385                                 [[ "$proto" == "$1" ]] || return 0
 386
 387                                 case "$cmd" in
 388                                         setup) _proto_do_setup "$1";;
 389                                         teardown) _proto_do_teardown "$1" ;;
 390                                         *) return 1 ;;
 391                                 esac
 392                         }
 393                 ;;
 394         esac
 395 }