luci-base: datatypes: add cidr, ipnet validator type

- Rewrite ipmask to use these subtypes
- Add ip{4,6}prefix validators to cbi.js

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>

1 files changed, 22 insertions, 20 deletions

diff --git a/modules/luci-base/luasrc/cbi/datatypes.lua b/modules/luci-base/luasrc/cbi/datatypes.lua
index cf56566287..df23aaf135 100644
--- a/modules/luci-base/luasrc/cbi/datatypes.lua
+++ b/modules/luci-base/luasrc/cbi/datatypes.lua
@@ -132,38 +132,40 @@ function ip6prefix(val)
 	return ( val and val >= 0 and val <= 128 )
 end
 
-function ipmask(val)
-	return ipmask4(val) or ipmask6(val)
+function cidr4(val)
+	local ip, mask = val:match("^([^/]+)/([^/]+)$")
+
+	return ip4addr(ip) and ip4prefix(mask)
 end
 
-function ipmask4(val)
+function cidr6(val)
 	local ip, mask = val:match("^([^/]+)/([^/]+)$")
-	local bits = tonumber(mask)
 
-	if bits and (bits < 0 or bits > 32) then
-		return false
-	end
+	return ip6addr(ip) and ip6prefix(mask)
+end
 
-	if not bits and mask and not ip4addr(mask) then
-		return false
-	end
+function ipnet4(val)
+	local ip, mask = val:match("^([^/]+)/([^/]+)$")
 
-	return ip4addr(ip or val)
+	return ip4addr(ip) and ip4addr(mask)
 end
 
-function ipmask6(val)
+function ipnet6(val)
 	local ip, mask = val:match("^([^/]+)/([^/]+)$")
-	local bits = tonumber(mask)
 
-	if bits and (bits < 0 or bits > 128) then
-		return false
-	end
+	return ip6addr(ip) and ip6addr(mask)
+end
 
-	if not bits and mask and not ip6addr(mask) then
-		return false
-	end
+function ipmask(val)
+	return ipmask4(val) or ipmask6(val)
+end
+
+function ipmask4(val)
+	return cidr4(val) or ipnet4(val) or ip4addr(val)
+end
 
-	return ip6addr(ip or val)
+function ipmask6(val)
+	return cidr6(val) or ipnet6(val) or ip6addr(val)
 end
 
 function ip6hostid(val)