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