libs/core: add new convenience functions to luci.model.network

diff --git a/libs/core/luasrc/model/network.lua b/libs/core/luasrc/model/network.lua
index 68ad04fae09e99837a4baeef44ef6e5fa867d2d4..07bae9a8ae54fc94903d8770a03a129f39ee82dc 100644 (file)
--- a/libs/core/luasrc/model/network.lua
+++ b/libs/core/luasrc/model/network.lua
@@ -475,6 +475,24 @@ function network._get(self, opt)
        return v or ""
 end
 
+function network._ip(self, opt, family, list)
+       local ip = uci_s:get("network", self.sid, opt)
+       local fc = (family == 6) and ipc.IPv6 or ipc.IPv4
+       if ip then
+               if list then
+                       local l = { }
+                       for ip in utl.imatch(ip) do
+                               ip = fc(ip)
+                               if ip then l[#l+1] = ip:string() end
+                       end
+                       return l
+               else
+                       ip = fc(ip)
+                       return ip and ip:string()
+               end
+       end
+end
+
 function network.get(self, opt)
        return _get("network", self.sid, opt)
 end
@@ -553,6 +571,69 @@ function network.uptime(self)
        end
 end
 
+function network.expires(self)
+       local a = tonumber(uci_s:get("network", self.sid, "lease_acquired"))
+       local l = tonumber(uci_s:get("network", self.sid, "lease_lifetime"))
+       if a and l then
+               l = l - (nxo.sysinfo().uptime - a)
+               return l > 0 and l or 0
+       end
+       return -1
+end
+
+function network.metric(self)
+       return tonumber(uci_s:get("network", self.sid, "metric")) or 0
+end
+
+function network.ipaddr(self)
+       return self:_ip("ipaddr", 4)
+end
+
+function network.netmask(self)
+       return self:_ip("netmask", 4)
+end
+
+function network.gwaddr(self)
+       return self:_ip("gateway", 4)
+end
+
+function network.dnsaddrs(self)
+       return self:_ip("dns", 4, true)
+end
+
+function network.ip6addr(self)
+       local ip6 = self:_ip("ip6addr", 6)
+       if not ip6 then
+               local ifc = ifs[self:ifname()]
+               local llr = ipc.IPv6("fe80::/10")
+               if ifc and ifc.ip6addrs then
+                       local a
+                       for _, a in ipairs(ifc.ip6addrs) do
+                               if not llr:contains(a) then
+                                       ip6 = a:string()
+                                       break
+                               end
+                       end
+               end
+       end
+       return ip6
+end
+
+function network.gw6addr(self)
+       local ip6 = self:_ip("ip6gw", 6)
+       if not ip6 then
+               local dr6 = sys.net.defaultroute6()
+               if dr6 and dr6.device == self:ifname() then
+                       return dr6.nexthop:string()
+               end
+       end
+       return ip6
+end
+
+function network.dns6addrs(self)
+       return self:_ip("dns", 6, true)
+end
+
 function network.is_bridge(self)
        return (self:type() == "bridge")
 end