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