combine_all,
contains,
contains_proper,
+ max_octet1,
+ max_octet2,
+ max_octet3,
+ max_octet4,
+ min_octet1,
+ min_octet2,
+ min_octet3,
+ min_octet4,
prop_all_cidrs_contain_themselves,
prop_contains_proper_intransitive
) where
import Test.HUnit
import Test.QuickCheck
+import qualified Bit as B
import IPv4Address
import ListUtils
import Maskable
equivalent Cidr.None _ = False
equivalent _ Cidr.None = False
equivalent (Cidr addr1 mbits1) (Cidr addr2 mbits2) =
- (mbits1 == mbits2) && ((apply_mask addr1 mbits1) == (apply_mask addr2 mbits2))
+ (mbits1 == mbits2) && ((apply_mask addr1 mbits1 B.Zero) == (apply_mask addr2 mbits2 B.Zero))
-- Returns the mask portion of a CIDR address. That is, everything
-- after the trailing slash.
maskbits_from_cidr_string :: String -> Maskbits
-maskbits_from_cidr_string s =
- maskbits_from_string ((splitWith (`elem` "/") s) !! 1)
+maskbits_from_cidr_string s
+ | length partlist == 2 = maskbits_from_string (partlist !! 1)
+ | otherwise = Maskbits.None
+ where
+ partlist = (splitWith (`elem` "/") s)
-- Takes an IP address String in CIDR notation, and returns a list of
+min_host :: Cidr -> IPv4Address
+min_host Cidr.None = IPv4Address.None
+min_host (Cidr IPv4Address.None _) = IPv4Address.None
+min_host (Cidr _ Maskbits.None) = IPv4Address.None
+min_host (Cidr addr mask) = apply_mask addr mask B.Zero
+
+
+max_host :: Cidr -> IPv4Address
+max_host Cidr.None = IPv4Address.None
+max_host (Cidr IPv4Address.None _) = IPv4Address.None
+max_host (Cidr _ Maskbits.None) = IPv4Address.None
+max_host (Cidr addr mask) = apply_mask addr mask B.One
+
+
+min_octet1 :: Cidr -> Octet
+min_octet1 cidr = octet1 (min_host cidr)
+
+min_octet2 :: Cidr -> Octet
+min_octet2 cidr = octet2 (min_host cidr)
+
+min_octet3 :: Cidr -> Octet
+min_octet3 cidr = octet3 (min_host cidr)
+
+min_octet4 :: Cidr -> Octet
+min_octet4 cidr = octet4 (min_host cidr)
+
+max_octet1 :: Cidr -> Octet
+max_octet1 cidr = octet1 (max_host cidr)
+
+max_octet2 :: Cidr -> Octet
+max_octet2 cidr = octet2 (max_host cidr)
+
+max_octet3 :: Cidr -> Octet
+max_octet3 cidr = octet3 (max_host cidr)
+
+max_octet4 :: Cidr -> Octet
+max_octet4 cidr = octet4 (max_host cidr)
+
+
+
-- Return true if the first argument (a CIDR range) contains the
-- second (another CIDR range). There are a lot of ways we can be fed
-- junk here. For lack of a better alternative, just return False when
| mbits1 > mbits2 = False
| otherwise = addr1masked == addr2masked
where
- addr1masked = apply_mask addr1 mbits1
- addr2masked = apply_mask addr2 mbits1
+ addr1masked = apply_mask addr1 mbits1 B.Zero
+ addr2masked = apply_mask addr2 mbits1 B.Zero
contains_proper :: Cidr -> Cidr -> Bool
-- HUnit Tests
+test_min_host1 :: Test
+test_min_host1 =
+ TestCase $ assertEqual "The minimum host in 10.0.0.0/24 is 10.0.0.0" expected actual
+ where
+ actual = show $ min_host (cidr_from_string "10.0.0.0/24")
+ expected = "10.0.0.0"
+
+
+test_max_host1 :: Test
+test_max_host1 =
+ TestCase $ assertEqual "The maximum host in 10.0.0.0/24 is 10.0.0.255" expected actual
+ where
+ actual = show $ min_host (cidr_from_string "10.0.0.0/24")
+ expected = "10.0.0.255"
+
+
test_equality1 :: Test
test_equality1 =
TestCase $ assertEqual "10.1.1.0/23 equals itself" True (cidr1 == cidr1)
cidr_tests :: [Test]
-cidr_tests = [ test_equality1,
+cidr_tests = [ test_min_host1,
+ test_max_host1,
+ test_equality1,
test_contains1,
test_contains2,
test_contains_proper1,