mte/unikernel/duniverse/ocaml-asn1-combinators/tests/test.ml
2025-11-11 02:07:51 +01:00

427 lines
14 KiB
OCaml

(* Copyright (c) 2014-2019 David Kaloper Meršinjak. All rights reserved.
See LICENSE.md. *)
let octets = Alcotest.testable Ohex.pp String.equal
let err = Alcotest.testable Asn.pp_error (fun (`Parse _) (`Parse _) -> true)
let dec t = Alcotest.(result (pair t octets) err)
let testable ?(pp = fun ppf _ -> Fmt.pf ppf "*shrug*") ?(cmp = (=)) () =
Alcotest.testable pp cmp
let pp_e ppf = function
| #Asn.error as e -> Asn.pp_error ppf e
| `Leftover b -> Format.fprintf ppf "Leftover: %a" Ohex.pp b
type 'a cmp = 'a -> 'a -> bool
type case_eq =
CEQ : string * 'a Alcotest.testable * 'a Asn.t * ('a * string) list -> case_eq
let case_eq name ?pp ?cmp asn examples =
CEQ (name, testable ?pp ?cmp (), asn, examples)
type case = C : string * 'a Asn.t * string list -> case
let case name asn examples = C (name, asn, examples)
let accepts_eq name enc cases =
let tests = cases |> List.map @@ fun (CEQ (name, alc, asn, xs)) ->
let codec = Asn.codec enc asn
and t = dec alc in
let f () = xs |> List.iter @@ fun (exp, s) ->
Alcotest.check t name (Ok (exp, "")) (Asn.decode codec (Ohex.decode s)) in
(name, `Quick, f) in
(name, tests)
let rejects name enc cases =
let tests = cases |> List.map @@ fun (C (name, asn, ss)) ->
let codec = Asn.codec enc asn
and t = dec (testable ()) in
let f () = ss |> List.iter @@ fun s ->
Alcotest.check t name (Error (`Parse "..."))
(Asn.decode codec (Ohex.decode s)) in
(name, `Quick, f) in
(name, tests)
let accepts name enc cases =
let tests = cases |> List.map @@ fun (C (name, asn, ss)) ->
let f () = ss |> List.iter @@ fun s ->
match Asn.(decode (codec enc asn)) (Ohex.decode s) with
Ok (_, t) ->
Alcotest.check octets "no remainder" "" t
| Error e ->
Alcotest.failf "decode failed with: %a" pp_e e in
(name, `Quick, f) in
(name, tests)
let inverts1 ?(iters = 1000) name enc cases =
let tests = cases |> List.map @@ fun (CEQ (name, alc, asn, _)) ->
let codec = Asn.codec enc asn and t = dec alc in
let f () =
for _ = 1 to iters do
let x = Asn.random asn in
Alcotest.check t "invert" (Ok (x, ""))
(Asn.decode codec (Asn.encode codec x))
done in
(name, `Quick, f) in
(name, tests)
let time ?(frac=0) dtz =
Ptime.(add_span (of_date_time dtz |> Option.get)
(Span.v (0, Int64.(mul (of_int frac) 1_000_000_000L))) |> Option.get)
let cases = [
case_eq "bool" Asn.S.bool [
false, "010100" ;
true , "0101ff"
];
case_eq "integer" ~pp:Ohex.pp ~cmp:String.equal Asn.S.integer [
"\x00", "0201 00";
"\x7f", "0201 7f";
"\x80", "0201 80";
"\xff", "0201 ff";
"\x00\x80", "0202 0080";
"\x7f\xff", "0202 7fff";
"\x80\x00", "0202 8000";
"\xff\x7f", "0202 ff7f";
"\x00\x80\x00", "0203 008000";
"\x00\xff\xff", "0203 00ffff";
"\x80\x00\x00", "0203 800000";
"\xff\x7f\xff", "0203 ff7fff";
"\x00\x80\x00\x00", "0204 00800000";
"\x7f\xff\xff\xff", "0204 7fffffff";
"\x80\x00\x00\x00", "0204 80000000";
"\xff\x7f\xff\xff", "0204 ff7fffff";
"\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", "020c 00800000 00000000 00000000";
"\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff", "020c 00ffffff ffffffff ffffffff";
"\x00\xff\xff\xff\x7f\xff\xff\xff\xff\xff\xff\xff", "020c 00ffffff 7fffffff ffffffff";
"\x00\xff\xff\xff\xff\xff\xff\xff\x7f\xff\xff\xff", "020c 00ffffff ffffffff 7fffffff";
"\x80\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff", "020c 80ffffff ffffffff ffffffff";
"\xff\x7f\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff", "020c ff7fffff ffffffff ffffffff";
];
case_eq "unsigned_integer" ~pp:Ohex.pp ~cmp:String.equal Asn.S.unsigned_integer [
"", "0201 00";
"\x01", "0201 01";
"\x80", "0202 0080";
];
case_eq "int" ~pp:Format.pp_print_int ~cmp:Int.equal Asn.S.int ([
0, "020100";
127, "02017F";
128, "02020080";
256, "02020100";
-128, "020180";
-129, "0202FF7F";
1073741823 (* 0x3FFFFFFF *), "02043FFFFFFF";
-1073741824, "0204C0000000";
] @ (if Sys.word_size = 64 then
[ Int64.to_int 4294967295L, "020500FFFFFFFF";
Int64.to_int 4611686018427387903L, "02083FFFFFFFFFFFFFFF";
Int64.to_int (-4611686018427387904L), "0208C000000000000000";
]
else
[])
);
case_eq "null" Asn.S.null [
(), "0500";
(), "058100"
];
case_eq "singleton seq"
Asn.S.(sequence (single @@ required bool))
[ true, "30030101ff";
true, "30800101ff0000" ; ];
case_eq "rename stack"
Asn.S.(implicit 1 @@ implicit 2 @@ explicit 3 @@ implicit 4 @@ int)
[ 42, "a18084012a0000";
42, "a10384012a" ];
case_eq "sequence with implicits"
Asn.S.(sequence3
(required int)
(required @@ implicit 1 bool)
(required bool))
[ (42, false, true), "3009 02012a 810100 0101ff";
(42, false, true), "3080 02012a 810100 0101ff 0000" ];
case_eq "sequence with optional and explicit fields"
Asn.S.(sequence3
(required @@ implicit 1 int)
(optional @@ explicit 2 bool)
(optional @@ implicit 3 bool))
[ (255, Some true, Some false),
"300c 810200ff a203 0101f0 830100" ;
(255, Some true, Some false),
"3080 810200ff a203 0101f0 830100 0000";
(255, Some true, Some false),
"3080 810200ff a280 0101f0 0000 830100 0000" ];
case_eq "sequence with missing optional and choice fields"
Asn.S.(sequence3 (required @@ choice2 bool int)
(optional @@ choice2 bool int)
(optional @@ explicit 0
@@ choice2 int (implicit 1 int)))
[ (`C1 true, None, None), "30030101ff" ;
(`C1 false, Some (`C2 42), None), "3006 010100 02012a";
(`C1 true, None, Some (`C1 42)), "3008 0101ff a003 02012a" ;
(`C2 (-2), Some (`C2 42), Some (`C2 42)), "300b 0201fe 02012a a003 81012a";
(`C2 (-3), None, Some (`C2 42)), "300a 0201fd a080 81012a0000";
(`C2 (-4), None, Some (`C1 42)), "3080 0201fc a080 02012a0000 0000" ];
case_eq "sequence with sequence"
Asn.S.(sequence2
(required @@
sequence2
(optional @@ implicit 1 bool)
(optional bool))
(required bool))
[ ((Some true, Some false), true), "300b 3006 8101ff 010100 0101ff";
((None, Some false), true), "3008 3003 010100 0101ff";
((Some true, None), true), "3008 3003 8101ff 0101ff" ;
((Some true, None), true), "3080 3080 8101ff 0000 0101ff 0000";
((None, None), true), "3007308000000101ff";
((None, None), true), "300530000101ff" ];
case_eq "sequence_of choice"
Asn.S.(sequence2
(required @@
sequence_of
(choice2 bool (implicit 0 bool)))
(required @@ bool))
[ ([`C2 true; `C2 false; `C1 true], true),
"300e 3009 8001ff 800100 0101ff 0101ff";
([`C2 true; `C2 false; `C1 true], true),
"3080 3080 8001ff 800100 0101ff 0000 0101ff 0000" ];
case_eq "sets"
Asn.S.(set4 (required @@ implicit 1 bool)
(required @@ implicit 2 bool)
(required @@ implicit 3 int )
(optional @@ implicit 4 int ))
[ (true, false, 42, None), "3109 8101ff 820100 83012a";
(true, false, 42, Some (-1)), "310c 820100 8401ff 8101ff 83012a";
(true, false, 42, None), "3109 820100 83012a 8101ff";
(true, false, 42, Some 15), "310c 83012a 820100 8101ff 84010f";
(true, false, 42, None), "3180 820100 83012a 8101ff 0000";
(true, false, 42, Some 15), "3180 83012a 820100 8101ff 84010f 0000" ];
case_eq "set or seq"
Asn.S.(choice2 (set2 (optional int ) (optional bool))
(sequence2 (optional int ) (optional bool)))
[ (`C1 (None, Some true)), "3103 0101ff";
(`C1 (Some 42, None)), "3103 02012a";
(`C1 (Some 42, Some true)), "3106 0101ff 02012a";
(`C2 (None, Some true)), "3003 0101ff";
(`C2 (Some 42, None)), "3003 02012a";
(`C2 (Some 42, Some true)), "3006 02012a 0101ff" ];
case_eq
"large tag"
Asn.S.(implicit 6666666 bool)
[ true , "9f8396f32a01ff";
false, "9f8396f32a0100";
];
case_eq
"recursive encoding"
Asn.S.(
fix @@ fun list ->
map (function `C1 () -> [] | `C2 (x, xs) -> x::xs)
(function [] -> `C1 () | x::xs -> `C2 (x, xs)) @@
choice2 null (sequence2 (required bool) (required list)))
[ [], "0500" ;
[true], "3005 0101ff 0500" ;
[true; false; true],
"300f 0101ff 300a 010100 3005 0101ff 0500";
[false; true; false],
"3080 010100 3080 0101ff 3080 010100 0500 0000 0000 0000";
[false; true; false],
"3080 010100 3080 0101ff 3080 010100 0500 0000 0000 0000" ];
case_eq "ia5 string" Asn.S.ia5_string
[ "abc", "1603616263";
"abcd", "360a 160161 160162 16026364";
"abcd", "3680 160161 160162 16026364 0000";
"abcd", "3680 3606 160161 160162 16026364 0000";
"test1@rsa.com", "160d7465737431407273 612e636f6d";
"test1@rsa.com", "16810d 7465737431407273612e636f6d" ;
"test1@rsa.com", "3613 16057465737431 160140 16077273612e636f6d" ];
case_eq "bit string" Asn.S.bit_string
( let example =
[| false; true; true; false; true; true; true; false; false;
true; false; true; true; true; false; true; true; true |] in
[ example, "0304066e5dc0";
example, "0304066e5de0";
example, "038104066e5dc0";
example, "2309 0303006e5d 030206c0" ] );
case_eq "bit flags"
(Asn.S.bit_string_flags [(2, `A); (4, `C); (8, `B); (10, `E); (12, `D)])
[ [`A; `B; `C], "030304ffdf";
[`A; `B; `C; `D], "030303ffdf"; ];
( let open Asn.OID in
let rsa = base 1 2 <| 840 <| 113549 in
case_eq "oid" Asn.S.oid [
( rsa ), "06062a864886f70d";
( rsa <| 1 <| 7 <| 2 ), "06092a864886f70d010702";
( rsa <| 1 <| 7 <| 1 ), "06092a864886f70d010701";
( base 1 3 <| 14 <| 3 <| 2 <| 26 ), "06052b0e03021a";
( base 2 5 <| 4 <| 3 ), "0603550403";
( base 2 5 <| 29 <| 15 ), "0603551d0f";
( base 1 2 <| 99999 ), "06042a868d1f";
] );
case_eq "octets" Asn.S.octet_string [
Ohex.decode "0123456789abcdef", "0408 0123456789abcdef" ;
Ohex.decode "0123456789abcdef", "048108 0123456789abcdef";
Ohex.decode "0123456789abcdef", "240c 040401234567 040489abcdef" ];
case_eq "utc time" ~cmp:Ptime.equal ~pp:Ptime.pp Asn.S.utc_time [
( time ((1991, 5, 6), ((23, 45, 40), 0)),
"170d393130353036 3233343534305a" ) ;
( time ((1991, 5, 6), ((16, 45, 40), -7 * 3600)),
"1711393130353036 313634353430 2D30373030" );
( time ((1991, 5, 6), ((16, 45, 0), 9000)),
"170f393130353036 31363435 2b30323330");
( time ((1950, 5, 6), ((23, 45, 40), 0)),
"170d353030353036 3233343534305a" ) ;
] ;
case_eq "generalized time" ~cmp:Ptime.equal ~pp:(Ptime.pp_human ~frac_s:3 ()) Asn.S.generalized_time [
( time ((1991, 5, 6), ((16, 0, 0), 0)),
"180a3139393130353036 3136");
( time ((1991, 5, 6), ((16, 0, 0), 0)),
"180b3139393130353036 31365a ");
( time ((1991, 5, 6), ((16, 0, 0), 15 * 60)),
"180f3139393130353036 3136 2b30303135");
( time ((1991, 5, 6), ((16, 45, 0), 15 * 60)),
"18113139393130353036 31363435 2b30303135");
( time ((1991, 5, 6), ((16, 45, 40), -15 * 60)),
"18133139393130353036 313634353430 2d30303135");
( time ~frac:001 ((1991, 5, 6), ((16, 45, 40), -(10 * 3600 + 10 * 60))),
"18173139393130353036 313634353430 2e303031 2d31303130");
( Ptime.min,
"18173030303030313031 303030303030 2e303030 2b30303030");
( Ptime.(truncate ~frac_s:3 max),
"18173939393931323331 323335393539 2e393939 2b30303030");
( time ~frac:766 ((0452, 05, 15), ((00, 30, 56), 0)),
"18133034353230353135 303033303536 2e3736365a");
( time ~frac:234 ((0452, 05, 15), ((00, 30, 56), 0)),
"18133034353230353135 303033303536 2e3233345a");
] ;
]
let anticases = [
(* thx @alpha-60 *)
case "tag overflow" Asn.S.bool
[ "1f a080 8080 8080 8080 8001 01ff" ];
case "leading zero" Asn.S.(implicit 127 bool)
[ "9f807f01ff" ];
case "length overflow" Asn.S.bool
[ "01 88 8000000000000001 ff" ] ;
case "oid overflow" Asn.S.oid
[ "06 0b 2a bfffffffffffffffff7f" ] ;
case "empty integer" Asn.S.integer [ "0200" ];
case "redundant int form" Asn.S.integer [
"02020000"; "0202007f"; "0202ff80"; "0202ffff";
"0203000000"; "0203007fff"; "0203ff8000"; "0203ffffff";
];
case "redundant oid form" Asn.S.oid
[ "06028001"; "06032a8001" ];
case "length overflow" Asn.S.integer
[ "02890100000000000000012a" ];
case "silly bit strings" Asn.S.bit_string
[ "0300"; "030101"; "030208ff" ];
case "null with indefinite length" Asn.S.null
[ "0580"; "058000"; "05800000" ];
case "32 bit length overflow"
Asn.S.(sequence2 (required integer) (required integer))
[ "30850100000006020180020180" ];
] @ (if Sys.word_size = 32 then
[ case "int overflow" Asn.S.int
[ "02047FFFFFFF" ; "020440000000" ;
"02050080000000" ; "0204BFFFFFFF" ] ]
else
[ case "int overflow" Asn.S.int
[ "02087FFFFFFFFFFFFFFF" ; "02084000000000000000" ;
"0209008000000000000000" ; "0208BFFFFFFFFFFFFFFF" ] ])
let der_anticases = [
case "constructed string 1" Asn.S.octet_string
[ "2400"; "24 06 04 04 46 55 43 4b" ];
case "constructed string 2" Asn.S.utf8_string
[ "2c00"; "2c060c044655434b" ];
case "expanded length" Asn.S.integer
[ "0281012a" ];
case "redundant length" Asn.S.octet_string
[ "048200ff" ^
Format.asprintf "%a" Ohex.pp (String.init 0xff (fun _ -> '\xaa')) ];
]
let certs = List.map (fun s -> case "cert" X509.certificate [s]) X509.examples
let () = Alcotest.run ~and_exit:false "BER" [
accepts_eq "value samples" Asn.ber cases;
rejects "- BER antisamples" Asn.ber anticases;
accepts "+ DER antisamples" Asn.ber der_anticases;
accepts "certs" Asn.ber certs;
inverts1 "inv" Asn.ber cases;
(* invert certs *)
]
let () = Alcotest.run "DER" [
(* accepts_eq "value samples" Asn.der cases; *)
rejects "- BER antisamples" Asn.der anticases;
rejects "- DER antisamples" Asn.der der_anticases;
accepts "certs" Asn.der certs;
inverts1 "inv" Asn.der cases;
(* invert certs *)
(* injectivity *)
]