package/base-files/files/lib/functions/network.sh

   1 . /usr/share/libubox/jshn.sh
   2
   3 __network_ipaddr()
   4 {
   5         local __var="$1"
   6         local __iface="$2"
   7         local __family="$3"
   8         local __prefix="${4:-0}"
   9
  10         local __tmp="$(ubus call network.interface."$__iface" status 2>/dev/null)"
  11
  12         json_load "${__tmp:-{}}"
  13         json_get_type __tmp "ipv${__family}_address"
  14
  15         if [ "$__tmp" = array ]; then
  16
  17                 json_select "ipv${__family}_address"
  18                 json_get_type __tmp 1
  19
  20                 if [ "$__tmp" = object ]; then
  21
  22                         json_select 1
  23                         json_get_var $__var address
  24
  25                         [ $__prefix -gt 0 ] && {
  26                                 json_get_var __tmp mask
  27                                 eval "export -- \"$__var=\${$__var}/$__tmp\""
  28                         }
  29
  30                         return 0
  31                 fi
  32         fi
  33
  34         return 1
  35 }
  36
  37 network_get_ipaddr()  { __network_ipaddr "$1" "$2" 4 0; }
  38 network_get_ipaddr6() { __network_ipaddr "$1" "$2" 6 0; }
  39
  40 network_get_subnet()  { __network_ipaddr "$1" "$2" 4 1; }
  41 network_get_subnet6() { __network_ipaddr "$1" "$2" 6 1; }
  42
  43
  44 __network_gateway()
  45 {
  46         local __var="$1"
  47         local __iface="$2"
  48         local __family="$3"
  49
  50         local __tmp="$(ubus call network.interface."$__iface" status 2>/dev/null)"
  51         local __idx=1
  52         local __enabled
  53
  54         json_load "${__tmp:-{}}"
  55
  56         if json_get_type __tmp route && [ "$__tmp" = array ]; then
  57
  58                 json_select route
  59
  60                 while json_get_type __tmp "$__idx" && [ "$__tmp" = object ]; do
  61
  62                         json_select "$((__idx++))"
  63                         json_get_var __tmp target
  64                         json_get_var __enabled enabled
  65
  66                         case "${__enabled}/${__family}/${__tmp}" in
  67                                 1/4/0.0.0.0|1/6/::)
  68                                         json_get_var "$__var" nexthop
  69                                         return $?
  70                                 ;;
  71                         esac
  72
  73                         json_select ".."
  74
  75                 done
  76         fi
  77
  78         return 1
  79 }
  80
  81 network_get_gateway()  { __network_gateway "$1" "$2" 4; }
  82 network_get_gateway6() { __network_gateway "$1" "$2" 6; }
  83
  84
  85 __network_wan() {
  86         local __var="$1"
  87         local __family="$2"
  88         local __iface
  89
  90         for __iface in $(ubus list | sed -ne 's/^network\.interface\.//p'); do
  91                 if __network_gateway "$__var" "$__iface" "$__family"; then
  92                         eval "export -- \"$__var=$__iface\""
  93                         return 0
  94                 fi
  95         done
  96
  97         eval "export -- \"$__var=\""
  98         return 1
  99 }
 100
 101 network_find_wan()  { __network_wan "$1" 4; }
 102 network_find_wan6() { __network_wan "$1" 6; }
 103
 104
 105 __network_device()
 106 {
 107         local __var="$1"
 108         local __iface="$2"
 109         local __field="$3"
 110
 111         local __tmp="$(ubus call network.interface."$__iface" status 2>/dev/null)"
 112         [ -n "$__tmp" ] || return 1
 113
 114         json_load "$__tmp"
 115         json_get_var "$__var" "$__field"
 116 }
 117
 118 network_is_up()
 119 {
 120         local __up
 121         __network_device __up "$1" up && [ $__up -eq 1 ]
 122 }
 123
 124 network_get_device()  { __network_device "$1" "$2" l3_device; }
 125 network_get_physdev() { __network_device "$1" "$2" device;    }
 126
 127
 128 __network_defer()
 129 {
 130         local __device="$1"
 131         local __defer="$2"
 132
 133         json_init
 134         json_add_string name "$__device"
 135         json_add_boolean defer "$__defer"
 136
 137         ubus call network.device set_state "$(json_dump)" 2>/dev/null
 138 }
 139
 140 network_defer_device() { __network_defer "$1" 1; }
 141 network_ready_device() { __network_defer "$1" 0; }