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."$__iface" status 2>/dev/null)"
  51         local __idx=1
  52
  53         json_load "${__tmp:-{}}"
  54
  55         if json_get_type __tmp route && [ "$__tmp" = array ]; then
  56
  57                 json_select route
  58
  59                 while json_get_type __tmp "$__idx" && [ "$__tmp" = object ]; do
  60
  61                         json_select "$((__idx++))"
  62                         json_get_var __tmp target
  63
  64                         case "${__family}/${__tmp}" in
  65                                 4/0.0.0.0|6/::)
  66                                         json_get_var "$__var" nexthop
  67                                         return $?
  68                                 ;;
  69                         esac
  70
  71                         json_select ".."
  72
  73                 done
  74         fi
  75
  76         return 1
  77 }
  78
  79 network_get_gateway()  { __network_gateway "$1" "$2" 4; }
  80 network_get_gateway6() { __network_gateway "$1" "$2" 6; }
  81
  82
  83 __network_wan() {
  84         local __var="$1"
  85         local __family="$2"
  86         local __iface
  87
  88         for __iface in $(ubus list | sed -ne 's/^network\.interface\.//p'); do
  89                 if __network_gateway "$__var" "$__iface" "$__family"; then
  90                         eval "export -- \"$__var=$__iface\""
  91                         return 0
  92                 fi
  93         done
  94
  95         eval "export -- \"$__var=\""
  96         return 1
  97 }
  98
  99 network_find_wan()  { __network_wan "$1" 4; }
 100 network_find_wan6() { __network_wan "$1" 6; }
 101
 102
 103 __network_device()
 104 {
 105         local __var="$1"
 106         local __iface="$2"
 107         local __field="$3"
 108
 109         local __tmp="$(ubus call network.interface."$__iface" status 2>/dev/null)"
 110         [ -n "$__tmp" ] || return 1
 111
 112         json_load "$__tmp"
 113         json_get_var "$__var" "$__field"
 114 }
 115
 116 network_is_up()
 117 {
 118         local __up
 119         __network_device __up "$1" up && [ $__up -eq 1 ]
 120 }
 121
 122 network_get_device()  { __network_device "$1" "$2" l3_device; }
 123 network_get_physdev() { __network_device "$1" "$2" device;    }
 124
 125
 126 __network_defer()
 127 {
 128         local __device="$1"
 129         local __defer="$2"
 130
 131         json_init
 132         json_add_string name "$__device"
 133         json_add_boolean defer "$__defer"
 134
 135         ubus call network.device set_state "$(json_dump)" 2>/dev/null
 136 }
 137
 138 network_defer_device() { __network_defer "$1" 1; }
 139 network_ready_device() { __network_defer "$1" 0; }