dummy/netifd-proto.sh

   1 . /usr/share/libubox/jshn.sh
   2
   3 proto_config_add_generic() {
   4         json_add_array ""
   5         json_add_string "" "$1"
   6         json_add_int "" "$2"
   7         json_close_array
   8 }
   9
  10 proto_config_add_int() {
  11         proto_config_add_generic "$1" 5
  12 }
  13
  14 proto_config_add_string() {
  15         proto_config_add_generic "$1" 3
  16 }
  17
  18 proto_config_add_boolean() {
  19         proto_config_add_generic "$1" 7
  20 }
  21
  22 add_default_handler() {
  23         case "$(type $1 2>/dev/null)" in
  24                 *function*) return;;
  25                 *) eval "$1() { return; }"
  26         esac
  27 }
  28
  29 _proto_do_teardown() {
  30         json_load "$data"
  31         eval "proto_$1_teardown \"$interface\" \"$ifname\""
  32 }
  33
  34 _proto_do_setup() {
  35         json_load "$data"
  36         _EXPORT_VAR=0
  37         _EXPORT_VARS=
  38         eval "proto_$1_setup \"$interface\" \"$ifname\""
  39 }
  40
  41 proto_init_update() {
  42         local ifname="$1"
  43         local up="$2"
  44         local external="$3"
  45
  46         PROTO_KEEP=0
  47         PROTO_INIT=1
  48         PROTO_TUNNEL_OPEN=
  49         PROTO_IPADDR=
  50         PROTO_IP6ADDR=
  51         PROTO_ROUTE=
  52         PROTO_ROUTE6=
  53         PROTO_DNS=
  54         PROTO_DNS_SEARCH=
  55         json_init
  56         json_add_int action 0
  57         [ -n "$ifname" -a "*" != "$ifname" ] && json_add_string "ifname" "$ifname"
  58         json_add_boolean "link-up" "$up"
  59         [ -n "$3" ] && json_add_boolean "address-external" "$external"
  60 }
  61
  62 proto_set_keep() {
  63         PROTO_KEEP="$1"
  64 }
  65
  66 proto_close_nested() {
  67         [ -n "$PROTO_NESTED_OPEN" ] && json_close_object
  68         PROTO_NESTED_OPEN=
  69 }
  70
  71 proto_add_nested() {
  72         PROTO_NESTED_OPEN=1
  73         json_add_object "$1"
  74 }
  75
  76 proto_add_tunnel() {
  77         proto_add_nested "tunnel"
  78 }
  79
  80 proto_close_tunnel() {
  81         proto_close_nested
  82 }
  83
  84 proto_add_data() {
  85         proto_add_nested "data"
  86 }
  87
  88 proto_close_data() {
  89         proto_close_nested
  90 }
  91
  92 proto_add_dns_server() {
  93         local address="$1"
  94
  95         jshn_append PROTO_DNS "$address"
  96 }
  97
  98 proto_add_dns_search() {
  99         local address="$1"
 100
 101         jshn_append PROTO_DNS_SEARCH "$address"
 102 }
 103
 104 proto_add_ipv4_address() {
 105         local address="$1"
 106         local mask="$2"
 107
 108         jshn_append PROTO_IPADDR "$address/$mask"
 109 }
 110
 111 proto_add_ipv6_address() {
 112         local address="$1"
 113         local mask="$2"
 114
 115         jshn_append PROTO_IP6ADDR "$address/$mask"
 116 }
 117
 118 proto_add_ipv4_route() {
 119         local target="$1"
 120         local mask="$2"
 121         local gw="$3"
 122
 123         jshn_append PROTO_ROUTE "$target/$mask/$gw"
 124 }
 125
 126 proto_add_ipv6_route() {
 127         local target="$1"
 128         local mask="$2"
 129         local gw="$3"
 130
 131         jshn_append PROTO_ROUTE6 "$target/$mask/$gw"
 132 }
 133
 134 _proto_push_ip() {
 135         json_add_string "" "$1"
 136 }
 137
 138 _proto_push_route() {
 139         local str="$1";
 140         local target="${str%%/*}"
 141         str="${str#*/}"
 142         local mask="${str%%/*}"
 143         local gw="${str#*/}"
 144
 145         json_add_object ""
 146         json_add_string target "$target"
 147         json_add_string netmask "$mask"
 148         [ -n "$gw" ] && json_add_string gateway "$gw"
 149         json_close_object
 150 }
 151
 152 _proto_push_array() {
 153         local name="$1"
 154         local val="$2"
 155         local cb="$3"
 156
 157         [ -n "$val" ] || return 0
 158         json_add_array "$name"
 159         for item in $val; do
 160                 eval "$cb \"\$item\""
 161         done
 162         json_close_array
 163 }
 164
 165 _proto_notify() {
 166         local interface="$1"
 167         local options="$2"
 168         ubus $options call network.interface."$interface" notify_proto "$(json_dump)"
 169 }
 170
 171 proto_send_update() {
 172         local interface="$1"
 173
 174         proto_close_nested
 175         json_add_boolean keep "$PROTO_KEEP"
 176         _proto_push_array "ipaddr" "$PROTO_IPADDR" _proto_push_ip
 177         _proto_push_array "ip6addr" "$PROTO_IP6ADDR" _proto_push_ip
 178         _proto_push_array "routes" "$PROTO_ROUTE" _proto_push_route
 179         _proto_push_array "routes6" "$PROTO_ROUTE6" _proto_push_route
 180         _proto_push_array "dns" "$PROTO_DNS" _proto_push_ip
 181         _proto_push_array "dns_search" "$PROTO_DNS_SEARCH" _proto_push_ip
 182         _proto_notify "$interface"
 183 }
 184
 185 proto_export() {
 186         local var="VAR${_EXPORT_VAR}"
 187         _EXPORT_VAR="$(($_EXPORT_VAR + 1))"
 188         export -- "$var=$1"
 189         jshn_append _EXPORT_VARS "$var"
 190 }
 191
 192 proto_run_command() {
 193         local interface="$1"; shift
 194
 195         json_init
 196         json_add_int action 1
 197         json_add_array command
 198         while [ $# -gt 0 ]; do
 199                 json_add_string "" "$1"
 200                 shift
 201         done
 202         json_close_array
 203         [ -n "$_EXPORT_VARS" ] && {
 204                 json_add_array env
 205                 for var in $_EXPORT_VARS; do
 206                         eval "json_add_string \"\" \"\${$var}\""
 207                 done
 208                 json_close_array
 209         }
 210         _proto_notify "$interface"
 211 }
 212
 213 proto_kill_command() {
 214         local interface="$1"; shift
 215
 216         json_init
 217         json_add_int action 2
 218         [ -n "$1" ] && json_add_int signal "$1"
 219         _proto_notify "$interface"
 220 }
 221
 222 proto_notify_error() {
 223         local interface="$1"; shift
 224
 225         json_init
 226         json_add_int action 3
 227         json_add_array error
 228         while [ $# -gt 0 ]; do
 229                 json_add_string "" "$1"
 230                 shift
 231         done
 232         json_close_array
 233         _proto_notify "$interface"
 234 }
 235
 236 proto_block_restart() {
 237         local interface="$1"; shift
 238
 239         json_init
 240         json_add_int action 4
 241         _proto_notify "$interface"
 242 }
 243
 244 proto_set_available() {
 245         local interface="$1"
 246         local state="$2"
 247         json_init
 248         json_add_int action 5
 249         json_add_boolean available "$state"
 250         _proto_notify "$interface"
 251 }
 252
 253 proto_add_host_dependency() {
 254         local interface="$1"
 255         local host="$2"
 256
 257         json_init
 258         json_add_int action 6
 259         json_add_string host "$host"
 260         _proto_notify "$interface" -S
 261 }
 262
 263 init_proto() {
 264         proto="$1"; shift
 265         cmd="$1"; shift
 266
 267         case "$cmd" in
 268                 dump)
 269                         add_protocol() {
 270                                 no_device=0
 271                                 available=0
 272
 273                                 add_default_handler "proto_$1_init_config"
 274
 275                                 json_init
 276                                 json_add_string "name" "$1"
 277                                 json_add_array "config"
 278                                 eval "proto_$1_init_config"
 279                                 json_close_array
 280                                 json_add_boolean no-device "$no_device"
 281                                 json_add_boolean available "$available"
 282                                 json_dump
 283                         }
 284                 ;;
 285                 setup|teardown)
 286                         interface="$1"; shift
 287                         data="$1"; shift
 288                         ifname="$1"; shift
 289
 290                         add_protocol() {
 291                                 [[ "$proto" == "$1" ]] || return 0
 292
 293                                 case "$cmd" in
 294                                         setup) _proto_do_setup "$1";;
 295                                         teardown) _proto_do_teardown "$1" ;;
 296                                         *) return 1 ;;
 297                                 esac
 298                         }
 299                 ;;
 300         esac
 301 }