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="$1"
 167         ubus call network.interface."$interface" notify_proto "$(json_dump)"
 168 }
 169
 170 proto_send_update() {
 171         local interface="$1"
 172
 173         proto_close_nested
 174         json_add_boolean keep "$PROTO_KEEP"
 175         _proto_push_array "ipaddr" "$PROTO_IPADDR" _proto_push_ip
 176         _proto_push_array "ip6addr" "$PROTO_IP6ADDR" _proto_push_ip
 177         _proto_push_array "routes" "$PROTO_ROUTE" _proto_push_route
 178         _proto_push_array "routes6" "$PROTO_ROUTE6" _proto_push_route
 179         _proto_push_array "dns" "$PROTO_DNS" _proto_push_ip
 180         _proto_push_array "dns_search" "$PROTO_DNS_SEARCH" _proto_push_ip
 181         _proto_notify "$interface"
 182 }
 183
 184 proto_export() {
 185         local var="VAR${_EXPORT_VAR}"
 186         _EXPORT_VAR="$(($_EXPORT_VAR + 1))"
 187         export -- "$var=$1"
 188         jshn_append _EXPORT_VARS "$var"
 189 }
 190
 191 proto_run_command() {
 192         local interface="$1"; shift
 193
 194         json_init
 195         json_add_int action 1
 196         json_add_array command
 197         while [ $# -gt 0 ]; do
 198                 json_add_string "" "$1"
 199                 shift
 200         done
 201         json_close_array
 202         [ -n "$_EXPORT_VARS" ] && {
 203                 json_add_array env
 204                 for var in $_EXPORT_VARS; do
 205                         eval "json_add_string \"\" \"\${$var}\""
 206                 done
 207                 json_close_array
 208         }
 209         _proto_notify "$interface"
 210 }
 211
 212 proto_kill_command() {
 213         local interface="$1"; shift
 214
 215         json_init
 216         json_add_int action 2
 217         [ -n "$1" ] && json_add_int signal "$1"
 218         _proto_notify "$interface"
 219 }
 220
 221 proto_notify_error() {
 222         local interface="$1"; shift
 223
 224         json_init
 225         json_add_int action 3
 226         json_add_array error
 227         while [ $# -gt 0 ]; do
 228                 json_add_string "" "$1"
 229                 shift
 230         done
 231         json_close_array
 232         _proto_notify "$interface"
 233 }
 234
 235 proto_block_restart() {
 236         local interface="$1"; shift
 237
 238         json_init
 239         json_add_int action 4
 240         _proto_notify "$interface"
 241 }
 242
 243 proto_set_available() {
 244         local interface="$1"
 245         local state="$2"
 246         json_init
 247         json_add_int action 5
 248         json_add_boolean available "$state"
 249         _proto_notify "$interface"
 250 }
 251
 252 init_proto() {
 253         proto="$1"; shift
 254         cmd="$1"; shift
 255
 256         case "$cmd" in
 257                 dump)
 258                         add_protocol() {
 259                                 no_device=0
 260                                 available=0
 261
 262                                 add_default_handler "proto_$1_init_config"
 263
 264                                 json_init
 265                                 json_add_string "name" "$1"
 266                                 json_add_array "config"
 267                                 eval "proto_$1_init_config"
 268                                 json_close_array
 269                                 json_add_boolean no-device "$no_device"
 270                                 json_add_boolean available "$available"
 271                                 json_dump
 272                         }
 273                 ;;
 274                 setup|teardown)
 275                         interface="$1"; shift
 276                         data="$1"; shift
 277                         ifname="$1"; shift
 278
 279                         add_protocol() {
 280                                 [[ "$proto" == "$1" ]] || return 0
 281
 282                                 case "$cmd" in
 283                                         setup) _proto_do_setup "$1";;
 284                                         teardown) _proto_do_teardown "$1" ;;
 285                                         *) return 1 ;;
 286                                 esac
 287                         }
 288                 ;;
 289         esac
 290 }