X-Git-Url: http://gitweb.michael.orlitzky.com/?a=blobdiff_plain;f=src%2FIPv4Address.hs;h=575ce0d453d805e6647be844d80b9d9783fdb6c6;hb=e2cb918f1808f7f54cc742418050d49b424848c5;hp=55602aa8a9616197d6ecf038e6b071eec87e79d3;hpb=6257f1c59c5c9663f8d95996c1c35362417def71;p=hath.git diff --git a/src/IPv4Address.hs b/src/IPv4Address.hs index 55602aa..575ce0d 100644 --- a/src/IPv4Address.hs +++ b/src/IPv4Address.hs @@ -2,14 +2,8 @@ module IPv4Address ( ipv4address_from_octets, ipv4address_tests, IPv4Address(None), - max_octet1, - max_octet2, - max_octet3, - max_octet4, - min_octet1, - min_octet2, - min_octet3, - min_octet4, + max_address, + min_address, most_sig_bit_different, octet1, octet2, @@ -20,7 +14,7 @@ module IPv4Address import Test.HUnit import Test.QuickCheck -import qualified Bit as B +import Maskable import Maskbits import Octet @@ -56,6 +50,98 @@ instance Arbitrary IPv4Address where +instance Maskable IPv4Address where + apply_mask _ Maskbits.None _ = IPv4Address.None + apply_mask addr mask bit + | mask == ThirtyTwo = addr + | mask == ThirtyOne = addr { octet4 = (apply_mask oct4 Seven bit) } + | mask == Thirty = addr { octet4 = (apply_mask oct4 Six bit) } + | mask == TwentyNine = addr { octet4 = (apply_mask oct4 Five bit) } + | mask == TwentyEight = addr { octet4 = (apply_mask oct4 Four bit) } + | mask == TwentySeven = addr { octet4 = (apply_mask oct4 Three bit) } + | mask == TwentySix = addr { octet4 = (apply_mask oct4 Two bit) } + | mask == TwentyFive = addr { octet4 = (apply_mask oct4 One bit) } + | mask == TwentyFour = addr { octet4 = (apply_mask oct4 Zero bit) } + | mask == TwentyThree = addr { octet3 = (apply_mask oct3 Seven bit), + octet4 = (apply_mask oct4 Zero bit) } + | mask == TwentyTwo = addr { octet3 = (apply_mask oct3 Six bit), + octet4 = (apply_mask oct4 Zero bit) } + | mask == TwentyOne = addr { octet3 = (apply_mask oct3 Five bit), + octet4 = (apply_mask oct4 Zero bit) } + | mask == Twenty = addr { octet3 = (apply_mask oct3 Four bit), + octet4 = (apply_mask oct4 Zero bit) } + | mask == Nineteen = addr { octet3 = (apply_mask oct3 Three bit), + octet4 = (apply_mask oct4 Zero bit) } + | mask == Eighteen = addr { octet3 = (apply_mask oct3 Two bit), + octet4 = (apply_mask oct4 Zero bit) } + | mask == Seventeen = addr { octet3 = (apply_mask oct3 One bit), + octet4 = (apply_mask oct4 Zero bit) } + | mask == Sixteen = addr { octet3 = (apply_mask oct3 Zero bit), + octet4 = (apply_mask oct4 Zero bit) } + | mask == Fifteen = addr { octet2 = (apply_mask oct2 Seven bit), + octet3 = (apply_mask oct3 Zero bit), + octet4 = (apply_mask oct4 Zero bit) } + | mask == Fourteen = addr { octet2 = (apply_mask oct2 Six bit), + octet3 = (apply_mask oct3 Zero bit), + octet4 = (apply_mask oct4 Zero bit)} + | mask == Thirteen = addr { octet2 = (apply_mask oct2 Five bit), + octet3 = (apply_mask oct3 Zero bit), + octet4 = (apply_mask oct4 Zero bit)} + | mask == Twelve = addr { octet2 = (apply_mask oct2 Four bit), + octet3 = (apply_mask oct3 Zero bit), + octet4 = (apply_mask oct4 Zero bit)} + | mask == Eleven = addr { octet2 = (apply_mask oct2 Three bit), + octet3 = (apply_mask oct3 Zero bit), + octet4 = (apply_mask oct4 Zero bit)} + | mask == Ten = addr { octet2 = (apply_mask oct2 Two bit), + octet3 = (apply_mask oct3 Zero bit), + octet4 = (apply_mask oct4 Zero bit)} + | mask == Nine = addr { octet2 = (apply_mask oct2 One bit), + octet3 = (apply_mask oct3 Zero bit), + octet4 = (apply_mask oct4 Zero bit)} + | mask == Eight = addr { octet2 = (apply_mask oct2 Zero bit), + octet3 = (apply_mask oct3 Zero bit), + octet4 = (apply_mask oct4 Zero bit)} + | mask == Seven = addr { octet1 = (apply_mask oct1 Seven bit), + octet2 = (apply_mask oct2 Zero bit), + octet3 = (apply_mask oct3 Zero bit), + octet4 = (apply_mask oct4 Zero bit)} + | mask == Six = addr { octet1 = (apply_mask oct1 Six bit), + octet2 = (apply_mask oct2 Zero bit), + octet3 = (apply_mask oct3 Zero bit), + octet4 = (apply_mask oct4 Zero bit)} + | mask == Five = addr { octet1 = (apply_mask oct1 Five bit), + octet2 = (apply_mask oct2 Zero bit), + octet3 = (apply_mask oct3 Zero bit), + octet4 = (apply_mask oct4 Zero bit)} + | mask == Four = addr { octet1 = (apply_mask oct1 Four bit), + octet2 = (apply_mask oct2 Zero bit), + octet3 = (apply_mask oct3 Zero bit), + octet4 = (apply_mask oct4 Zero bit)} + | mask == Three = addr { octet1 = (apply_mask oct1 Three bit), + octet2 = (apply_mask oct2 Zero bit), + octet3 = (apply_mask oct3 Zero bit), + octet4 = (apply_mask oct4 Zero bit)} + | mask == Two = addr { octet1 = (apply_mask oct1 Two bit), + octet2 = (apply_mask oct2 Zero bit), + octet3 = (apply_mask oct3 Zero bit), + octet4 = (apply_mask oct4 Zero bit)} + | mask == One = addr { octet1 = (apply_mask oct1 One bit), + octet2 = (apply_mask oct2 Zero bit), + octet3 = (apply_mask oct3 Zero bit), + octet4 = (apply_mask oct4 Zero bit)} + | mask == Zero = addr { octet1 = (apply_mask oct1 Zero bit), + octet2 = (apply_mask oct2 Zero bit), + octet3 = (apply_mask oct3 Zero bit), + octet4 = (apply_mask oct4 Zero bit)} + | otherwise = IPv4Address.None + where + oct1 = (octet1 addr) + oct2 = (octet2 addr) + oct3 = (octet3 addr) + oct4 = (octet4 addr) + + -- We don't export our constructor so this function is the only -- way to construct an address from octets. As a result, we can -- return IPv4Address.None in response to being passed one of more @@ -69,177 +155,14 @@ ipv4address_from_octets oct1 oct2 oct3 oct4 | otherwise = IPv4Address oct1 oct2 oct3 oct4 -min_address :: IPv4Address -> Maskbits -> IPv4Address -min_address IPv4Address.None _ = IPv4Address.None -min_address _ Maskbits.None = IPv4Address.None -min_address addr mask - | mask == ThirtyTwo = IPv4Address oct1 oct2 oct3 oct4 - | mask == ThirtyOne = IPv4Address oct1 oct2 oct3 (Octet a25 a26 a27 a28 a29 a30 a31 B.Zero) - | mask == Thirty = IPv4Address oct1 oct2 oct3 (Octet a25 a26 a27 a28 a29 a30 B.Zero B.Zero) - | mask == TwentyNine = IPv4Address oct1 oct2 oct3 (Octet a25 a26 a27 a28 a29 B.Zero B.Zero B.Zero) - | mask == TwentyEight = IPv4Address oct1 oct2 oct3 (Octet a25 a26 a27 a28 B.Zero B.Zero B.Zero B.Zero) - | mask == TwentySeven = IPv4Address oct1 oct2 oct3 (Octet a25 a26 a27 B.Zero B.Zero B.Zero B.Zero B.Zero) - | mask == TwentySix = IPv4Address oct1 oct2 oct3 (Octet a25 a26 B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero) - | mask == TwentyFive = IPv4Address oct1 oct2 oct3 (Octet a25 B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero) - | mask == TwentyFour = IPv4Address oct1 oct2 oct3 (min_octet) - | mask == TwentyThree = IPv4Address oct1 oct2 (Octet a17 a18 a19 a20 a21 a22 a23 B.Zero) (min_octet) - | mask == TwentyTwo = IPv4Address oct1 oct2 (Octet a17 a18 a19 a20 a21 a22 B.Zero B.Zero) (min_octet) - | mask == TwentyOne = IPv4Address oct1 oct2 (Octet a17 a18 a19 a20 a21 B.Zero B.Zero B.Zero) (min_octet) - | mask == Twenty = IPv4Address oct1 oct2 (Octet a17 a18 a19 a20 B.Zero B.Zero B.Zero B.Zero) (min_octet) - | mask == Nineteen = IPv4Address oct1 oct2 (Octet a17 a18 a19 B.Zero B.Zero B.Zero B.Zero B.Zero) (min_octet) - | mask == Eighteen = IPv4Address oct1 oct2 (Octet a17 a18 B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero) (min_octet) - | mask == Seventeen = IPv4Address oct1 oct2 (Octet a17 B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero) (min_octet) - | mask == Sixteen = IPv4Address oct1 oct2 (min_octet) (min_octet) - | mask == Fifteen = IPv4Address oct1 (Octet a9 a10 a11 a12 a13 a14 a15 B.Zero) (min_octet) (min_octet) - | mask == Fourteen = IPv4Address oct1 (Octet a9 a10 a11 a12 a13 a14 B.Zero B.Zero) (min_octet) (min_octet) - | mask == Thirteen = IPv4Address oct1 (Octet a9 a10 a11 a12 a13 B.Zero B.Zero B.Zero) (min_octet) (min_octet) - | mask == Twelve = IPv4Address oct1 (Octet a9 a10 a11 a12 B.Zero B.Zero B.Zero B.Zero) (min_octet) (min_octet) - | mask == Eleven = IPv4Address oct1 (Octet a9 a10 a11 B.Zero B.Zero B.Zero B.Zero B.Zero) (min_octet) (min_octet) - | mask == Ten = IPv4Address oct1 (Octet a9 a10 B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero) (min_octet) (min_octet) - | mask == Nine = IPv4Address oct1 (Octet a9 B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero) (min_octet) (min_octet) - | mask == Eight = IPv4Address oct1 (min_octet) (min_octet) (min_octet) - | mask == Seven = IPv4Address (Octet a1 a2 a3 a4 a5 a6 a7 B.Zero) (min_octet) (min_octet) (min_octet) - | mask == Six = IPv4Address (Octet a1 a2 a3 a4 a5 a6 B.Zero B.Zero) (min_octet) (min_octet) (min_octet) - | mask == Five = IPv4Address (Octet a1 a2 a3 a4 a5 B.Zero B.Zero B.Zero) (min_octet) (min_octet) (min_octet) - | mask == Four = IPv4Address (Octet a1 a2 a3 a4 B.Zero B.Zero B.Zero B.Zero) (min_octet) (min_octet) (min_octet) - | mask == Three = IPv4Address (Octet a1 a2 a3 B.Zero B.Zero B.Zero B.Zero B.Zero) (min_octet) (min_octet) (min_octet) - | mask == Two = IPv4Address (Octet a1 a2 B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero) (min_octet) (min_octet) (min_octet) - | mask == One = IPv4Address (Octet a1 B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero) (min_octet) (min_octet) (min_octet) - | mask == Zero = IPv4Address (min_octet) (min_octet) (min_octet) (min_octet) - | otherwise = addr - where - a1 = (b1 oct1) - a2 = (b2 oct1) - a3 = (b3 oct1) - a4 = (b4 oct1) - a5 = (b5 oct1) - a6 = (b6 oct1) - a7 = (b7 oct1) - a9 = (b1 oct2) - a10 = (b2 oct2) - a11 = (b3 oct2) - a12 = (b4 oct2) - a13 = (b5 oct2) - a14 = (b6 oct2) - a15 = (b7 oct2) - a17 = (b1 oct3) - a18 = (b2 oct3) - a19 = (b3 oct3) - a20 = (b4 oct3) - a21 = (b5 oct3) - a22 = (b6 oct3) - a23 = (b7 oct3) - a25 = (b1 oct4) - a26 = (b2 oct4) - a27 = (b3 oct4) - a28 = (b4 oct4) - a29 = (b5 oct4) - a30 = (b6 oct4) - a31 = (b7 oct4) - oct1 = (octet1 addr) - oct2 = (octet2 addr) - oct3 = (octet3 addr) - oct4 = (octet4 addr) - - - -max_address :: IPv4Address -> Maskbits -> IPv4Address -max_address IPv4Address.None _ = IPv4Address.None -max_address _ Maskbits.None = IPv4Address.None -max_address addr mask - | mask == ThirtyTwo = IPv4Address oct1 oct2 oct3 oct4 - | mask == ThirtyOne = IPv4Address oct1 oct2 oct3 (Octet a25 a26 a27 a28 a29 a30 a31 B.One) - | mask == Thirty = IPv4Address oct1 oct2 oct3 (Octet a25 a26 a27 a28 a29 a30 B.One B.One) - | mask == TwentyNine = IPv4Address oct1 oct2 oct3 (Octet a25 a26 a27 a28 a29 B.One B.One B.One) - | mask == TwentyEight = IPv4Address oct1 oct2 oct3 (Octet a25 a26 a27 a28 B.One B.One B.One B.One) - | mask == TwentySeven = IPv4Address oct1 oct2 oct3 (Octet a25 a26 a27 B.One B.One B.One B.One B.One) - | mask == TwentySix = IPv4Address oct1 oct2 oct3 (Octet a25 a26 B.One B.One B.One B.One B.One B.One) - | mask == TwentyFive = IPv4Address oct1 oct2 oct3 (Octet a25 B.One B.One B.One B.One B.One B.One B.One) - | mask == TwentyFour = IPv4Address oct1 oct2 oct3 (max_octet) - | mask == TwentyThree = IPv4Address oct1 oct2 (Octet a17 a18 a19 a20 a21 a22 a23 B.One) (max_octet) - | mask == TwentyTwo = IPv4Address oct1 oct2 (Octet a17 a18 a19 a20 a21 a22 B.One B.One) (max_octet) - | mask == TwentyOne = IPv4Address oct1 oct2 (Octet a17 a18 a19 a20 a21 B.One B.One B.One) (max_octet) - | mask == Twenty = IPv4Address oct1 oct2 (Octet a17 a18 a19 a20 B.One B.One B.One B.One) (max_octet) - | mask == Nineteen = IPv4Address oct1 oct2 (Octet a17 a18 a19 B.One B.One B.One B.One B.One) (max_octet) - | mask == Eighteen = IPv4Address oct1 oct2 (Octet a17 a18 B.One B.One B.One B.One B.One B.One) (max_octet) - | mask == Seventeen = IPv4Address oct1 oct2 (Octet a17 B.One B.One B.One B.One B.One B.One B.One) (max_octet) - | mask == Sixteen = IPv4Address oct1 oct2 (max_octet) (max_octet) - | mask == Fifteen = IPv4Address oct1 (Octet a9 a10 a11 a12 a13 a14 a15 B.One) (max_octet) (max_octet) - | mask == Fourteen = IPv4Address oct1 (Octet a9 a10 a11 a12 a13 a14 B.One B.One) (max_octet) (max_octet) - | mask == Thirteen = IPv4Address oct1 (Octet a9 a10 a11 a12 a13 B.One B.One B.One) (max_octet) (max_octet) - | mask == Twelve = IPv4Address oct1 (Octet a9 a10 a11 a12 B.One B.One B.One B.One) (max_octet) (max_octet) - | mask == Eleven = IPv4Address oct1 (Octet a9 a10 a11 B.One B.One B.One B.One B.One) (max_octet) (max_octet) - | mask == Ten = IPv4Address oct1 (Octet a9 a10 B.One B.One B.One B.One B.One B.One) (max_octet) (max_octet) - | mask == Nine = IPv4Address oct1 (Octet a9 B.One B.One B.One B.One B.One B.One B.One) (max_octet) (max_octet) - | mask == Eight = IPv4Address oct1 (max_octet) (max_octet) (max_octet) - | mask == Seven = IPv4Address (Octet a1 a2 a3 a4 a5 a6 a7 B.One) (max_octet) (max_octet) (max_octet) - | mask == Six = IPv4Address (Octet a1 a2 a3 a4 a5 a6 B.One B.One) (max_octet) (max_octet) (max_octet) - | mask == Five = IPv4Address (Octet a1 a2 a3 a4 a5 B.One B.One B.One) (max_octet) (max_octet) (max_octet) - | mask == Four = IPv4Address (Octet a1 a2 a3 a4 B.One B.One B.One B.One) (max_octet) (max_octet) (max_octet) - | mask == Three = IPv4Address (Octet a1 a2 a3 B.One B.One B.One B.One B.One) (max_octet) (max_octet) (max_octet) - | mask == Two = IPv4Address (Octet a1 a2 B.One B.One B.One B.One B.One B.One) (max_octet) (max_octet) (max_octet) - | mask == One = IPv4Address (Octet a1 B.One B.One B.One B.One B.One B.One B.One) (max_octet) (max_octet) (max_octet) - | mask == Zero = IPv4Address (max_octet) (max_octet) (max_octet) (max_octet) - | otherwise = addr - where - a1 = (b1 oct1) - a2 = (b2 oct1) - a3 = (b3 oct1) - a4 = (b4 oct1) - a5 = (b5 oct1) - a6 = (b6 oct1) - a7 = (b7 oct1) - a9 = (b1 oct2) - a10 = (b2 oct2) - a11 = (b3 oct2) - a12 = (b4 oct2) - a13 = (b5 oct2) - a14 = (b6 oct2) - a15 = (b7 oct2) - a17 = (b1 oct3) - a18 = (b2 oct3) - a19 = (b3 oct3) - a20 = (b4 oct3) - a21 = (b5 oct3) - a22 = (b6 oct3) - a23 = (b7 oct3) - a25 = (b1 oct4) - a26 = (b2 oct4) - a27 = (b3 oct4) - a28 = (b4 oct4) - a29 = (b5 oct4) - a30 = (b6 oct4) - a31 = (b7 oct4) - oct1 = (octet1 addr) - oct2 = (octet2 addr) - oct3 = (octet3 addr) - oct4 = (octet4 addr) - - - -min_octet1 :: IPv4Address -> Maskbits -> Octet -min_octet1 addr mask = octet1 (min_address addr mask) - -min_octet2 :: IPv4Address -> Maskbits -> Octet -min_octet2 addr mask = octet2 (min_address addr mask) - -min_octet3 :: IPv4Address -> Maskbits -> Octet -min_octet3 addr mask = octet3 (min_address addr mask) - -min_octet4 :: IPv4Address -> Maskbits -> Octet -min_octet4 addr mask = octet4 (min_address addr mask) - -max_octet1 :: IPv4Address -> Maskbits -> Octet -max_octet1 addr mask = octet1 (max_address addr mask) - -max_octet2 :: IPv4Address -> Maskbits -> Octet -max_octet2 addr mask = octet2 (max_address addr mask) +-- The minimum possible IPv4 address, 0.0.0.0. +min_address :: IPv4Address +min_address = IPv4Address min_octet min_octet min_octet min_octet -max_octet3 :: IPv4Address -> Maskbits -> Octet -max_octet3 addr mask = octet3 (max_address addr mask) -max_octet4 :: IPv4Address -> Maskbits -> Octet -max_octet4 addr mask = octet4 (max_address addr mask) +-- The maximum possible IPv4 address, 255.255.255.255. +max_address :: IPv4Address +max_address = IPv4Address max_octet max_octet max_octet max_octet -- Given two addresses, find the number of the most significant bit