tests: added various octet string encoding/decoding tests This includes BER and DER decodings.
diff --git a/tests/Makefile.am b/tests/Makefile.am index 6b10a1c..c690095 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am
@@ -53,12 +53,14 @@ check_PROGRAMS = Test_parser Test_tree Test_encoding Test_indefinite \ Test_errors Test_simple Test_overflow Test_strings Test_choice \ - Test_encdec copynode coding-decoding2 strict-der Test_choice_ocsp + Test_encdec copynode coding-decoding2 strict-der Test_choice_ocsp \ + octet-string TESTS = Test_parser Test_tree Test_encoding Test_indefinite \ Test_errors Test_simple Test_overflow crlf threadsafety \ Test_strings Test_choice Test_encdec copynode coding-decoding2 \ - strict-der Test_choice_ocsp decoding decoding-invalid-x509 + strict-der Test_choice_ocsp decoding decoding-invalid-x509 \ + octet-string TESTS_ENVIRONMENT = \ ASN1PARSER=$(srcdir)/Test_parser.asn \
diff --git a/tests/octet-string.c b/tests/octet-string.c new file mode 100644 index 0000000..b8c1c45 --- /dev/null +++ b/tests/octet-string.c
@@ -0,0 +1,174 @@ +/* + * Copyright (C) 2011-2014 Free Software Foundation, Inc. + * + * This file is part of LIBTASN1. + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + * Written by Simon Josefsson + * + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> + +#include "libtasn1.h" + +struct tv +{ + int der_len; + const unsigned char *der_str; + int len; + const unsigned char *string; + int expected_error; + int ber; +}; + +static const struct tv tv[] = { + /* primitive octet strings */ + {.der_len = 10, + .der_str = + (void*)"\x04\x08\x01\x23\x45\x67\x89\xab\xcd\xef", + .len = 8, + .string = + (void*)"\x01\x23\x45\x67\x89\xab\xcd\xef", + .ber = 0}, + {.der_len = 22, + .der_str = + (void*)"\x04\x14\x13\x00\xd9\xa8\x47\xf7\xf2\x1c\xf4\xb0\xec\x5f\xc1\x73\xe5\x1b\x25\xc2\x62\x27", + .len = 20, + .string = + (void*)"\x13\x00\xD9\xA8\x47\xF7\xF2\x1C\xF4\xB0\xEC\x5F\xC1\x73\xE5\x1B\x25\xC2\x62\x27"}, + + /* long type of length */ + {.der_len = 23, + .der_str = + (void*)"\x04\x81\x14\x13\x00\xd9\xa8\x47\xf7\xf2\x1c\xf4\xb0\xec\x5f\xc1\x73\xe5\x1b\x25\xc2\x62\x27", + .len = 20, + .string = + (void*)"\x13\x00\xD9\xA8\x47\xF7\xF2\x1C\xF4\xB0\xEC\x5F\xC1\x73\xE5\x1B\x25\xC2\x62\x27", + .ber = 1}, + {.der_len = 11, + .der_str = + (void*)"\x04\x81\x08\x01\x23\x45\x67\x89\xab\xcd\xef", + .len = 8, + .string = + (void*)"\x01\x23\x45\x67\x89\xab\xcd\xef", + .ber = 1}, + + /* constructed - indefinite */ + {.der_len = 11, + .der_str = (void*)"\x24\x80\x04\x05\x01\x02\x03\x04\x05\x00\x00", + .len = 5, + .string = (void*)"\x01\x02\x03\x04\x05", + .ber = 1, + } +}; + +int +main (int argc, char *argv[]) +{ + unsigned char str[100]; + unsigned char der[100]; + int der_len = sizeof (der); + int str_size = sizeof (str); + unsigned char *tmp = NULL; + int ret, ret_len; + size_t i; + + for (i = 0; i < sizeof (tv) / sizeof (tv[0]); i++) + { + /* Decode */ + + if (tv[i].ber == 0) + { + str_size = sizeof (str); + ret = + asn1_get_octet_der (tv[i].der_str + 1, + tv[i].der_len - 1, &ret_len, str, + sizeof (str), &str_size); + if (ret != tv[i].expected_error) + { + fprintf (stderr, + "%d: asn1_get_octet_der iter %lu: got %d expected %d\n", + __LINE__, (unsigned long) i, ret, + tv[i].expected_error); + return 1; + } + + if (ret_len != tv[i].der_len - 1) + { + fprintf (stderr, + "%d: error in DER, length returned is %d, had %d\n", + __LINE__, ret_len, tv[i].der_len - 1); + return 1; + } + + if (str_size != tv[i].len + || memcmp (tv[i].string, str, tv[i].len) != 0) + { + fprintf (stderr, + "%d: memcmp iter %lu: got invalid decoding\n", + __LINE__, (unsigned long) i); + return 1; + } + + /* Encode */ + der_len = sizeof (der); + asn1_octet_der (str, str_size, der, &der_len); + + if (der_len != tv[i].der_len - 1 + || memcmp (tv[i].der_str + 1, der, tv[i].der_len - 1) != 0) + { + fprintf (stderr, + "encoding iter %lu: got invalid encoding\n", + (unsigned long) i); + return 1; + } + } + ret = + asn1_decode_simple_ber (ASN1_ETYPE_OCTET_STRING, + tv[i].der_str, tv[i].der_len, + &tmp, (unsigned int*)&str_size, (unsigned int*)&der_len); + if (ret != tv[i].expected_error) + { + fprintf (stderr, + "%d: asn1_decode_simple_ber iter %lu: got %s expected %s\n", + __LINE__, (unsigned long) i, asn1_strerror(ret), asn1_strerror(tv[i].expected_error)); + return 1; + } + + if (der_len != tv[i].der_len) + { + fprintf (stderr, + "%d: error in iter %lu: DER, length returned is %d, had %d\n", + __LINE__, (unsigned long)i, der_len, tv[i].der_len); + return 1; + } + + if (str_size != tv[i].len || memcmp (tv[i].string, tmp, tv[i].len) != 0) + { + fprintf (stderr, + "%d: memcmp iter %lu: got invalid decoding\n", + __LINE__, (unsigned long) i); + return 1; + } + free (tmp); + tmp = NULL; + + } + + return 0; +}