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Address review comments, fix handling of . in name matching and add m…
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…ore tests for . handling
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ColtonWilley committed May 31, 2024
1 parent af3828b commit f646cbc
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Showing 2 changed files with 119 additions and 7 deletions.
6 changes: 3 additions & 3 deletions src/internal.c
Original file line number Diff line number Diff line change
Expand Up @@ -12417,9 +12417,6 @@ int MatchDomainName(const char* pattern, int patternLen, const char* str,
str++;
strLen--;

if (s == '.')
return 0;

/* p is next char in pattern after '*', or '*' if '*' is the
* last char in the pattern (in which case patternLen is 1) */
if ( ((s == p) && (patternLen > 0))) {
Expand All @@ -12434,6 +12431,9 @@ int MatchDomainName(const char* pattern, int patternLen, const char* str,
if (strLen == 0) {
break;
}

if (s == '.')
return 0;
}
}
else {
Expand Down
120 changes: 116 additions & 4 deletions tests/api.c
Original file line number Diff line number Diff line change
Expand Up @@ -41266,7 +41266,7 @@ static int test_wolfSSL_X509_name_match(void)
EXPECT_DECLS;
#if defined(OPENSSL_EXTRA) && !defined(NO_CERTS) && !defined(NO_RSA)
/* A certificate with the subject alternative name a* */
unsigned char cert_der[] = {
const unsigned char cert_der[] = {
0x30, 0x82, 0x03, 0xac, 0x30, 0x82, 0x02, 0x94, 0xa0, 0x03, 0x02, 0x01,
0x02, 0x02, 0x14, 0x0f, 0xa5, 0x10, 0x85, 0xef, 0x58, 0x10, 0x59, 0xfc,
0x0f, 0x20, 0x1f, 0x53, 0xf5, 0x30, 0x39, 0x34, 0x49, 0x54, 0x05, 0x30,
Expand Down Expand Up @@ -41375,7 +41375,7 @@ static int test_wolfSSL_X509_name_match(void)
ExpectIntNE(wolfSSL_X509_check_host(x509, name4, nameLen4,
WOLFSSL_ALWAYS_CHECK_SUBJECT, NULL), 1);

X509_free(x509);
wolfSSL_X509_free(x509);

#endif
return EXPECT_RESULT();
Expand All @@ -41386,7 +41386,7 @@ static int test_wolfSSL_X509_name_match2(void)
EXPECT_DECLS;
#if defined(OPENSSL_EXTRA) && !defined(NO_CERTS) && !defined(NO_RSA)
/* A certificate with the subject alternative name a*b* */
unsigned char cert_der[] = {
const unsigned char cert_der[] = {
0x30, 0x82, 0x03, 0xae, 0x30, 0x82, 0x02, 0x96, 0xa0, 0x03, 0x02, 0x01,
0x02, 0x02, 0x14, 0x41, 0x8c, 0x8b, 0xaa, 0x0e, 0xd8, 0x5a, 0xc0, 0x52,
0x46, 0x0e, 0xe5, 0xd8, 0xb9, 0x48, 0x93, 0x7e, 0x8a, 0x7c, 0x65, 0x30,
Expand Down Expand Up @@ -41510,7 +41510,118 @@ static int test_wolfSSL_X509_name_match2(void)
ExpectIntNE(wolfSSL_X509_check_host(x509, name5, nameLen5,
WOLFSSL_ALWAYS_CHECK_SUBJECT, NULL), WOLFSSL_SUCCESS);

X509_free(x509);
wolfSSL_X509_free(x509);

#endif
return EXPECT_RESULT();
}

static int test_wolfSSL_X509_name_match3(void)
{
EXPECT_DECLS;
#if defined(OPENSSL_EXTRA) && !defined(NO_CERTS) && !defined(NO_RSA)
/* A certificate with the subject alternative name *.example.com */
const unsigned char cert_der[] = {
0x30, 0x82, 0x03, 0xb7, 0x30, 0x82, 0x02, 0x9f, 0xa0, 0x03, 0x02, 0x01,
0x02, 0x02, 0x14, 0x59, 0xbb, 0xf6, 0xde, 0xb8, 0x3d, 0x0e, 0x8c, 0xe4,
0xbd, 0x98, 0xa3, 0xbe, 0x3e, 0x8f, 0xdc, 0xbd, 0x7f, 0xcc, 0xae, 0x30,
0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x0b,
0x05, 0x00, 0x30, 0x77, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04,
0x06, 0x13, 0x02, 0x55, 0x53, 0x31, 0x10, 0x30, 0x0e, 0x06, 0x03, 0x55,
0x04, 0x08, 0x0c, 0x07, 0x4d, 0x6f, 0x6e, 0x74, 0x61, 0x6e, 0x61, 0x31,
0x10, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x04, 0x07, 0x0c, 0x07, 0x42, 0x6f,
0x7a, 0x65, 0x6d, 0x61, 0x6e, 0x31, 0x14, 0x30, 0x12, 0x06, 0x03, 0x55,
0x04, 0x0a, 0x0c, 0x0b, 0x77, 0x6f, 0x6c, 0x66, 0x53, 0x53, 0x4c, 0x20,
0x49, 0x6e, 0x63, 0x31, 0x14, 0x30, 0x12, 0x06, 0x03, 0x55, 0x04, 0x0b,
0x0c, 0x0b, 0x45, 0x6e, 0x67, 0x69, 0x6e, 0x65, 0x65, 0x72, 0x69, 0x6e,
0x67, 0x31, 0x18, 0x30, 0x16, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x0f,
0x77, 0x77, 0x77, 0x2e, 0x77, 0x6f, 0x6c, 0x66, 0x73, 0x73, 0x6c, 0x2e,
0x63, 0x6f, 0x6d, 0x30, 0x1e, 0x17, 0x0d, 0x32, 0x34, 0x30, 0x35, 0x33,
0x31, 0x30, 0x30, 0x33, 0x37, 0x34, 0x39, 0x5a, 0x17, 0x0d, 0x33, 0x34,
0x30, 0x35, 0x32, 0x39, 0x30, 0x30, 0x33, 0x37, 0x34, 0x39, 0x5a, 0x30,
0x77, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04, 0x06, 0x13, 0x02,
0x55, 0x53, 0x31, 0x10, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x04, 0x08, 0x0c,
0x07, 0x4d, 0x6f, 0x6e, 0x74, 0x61, 0x6e, 0x61, 0x31, 0x10, 0x30, 0x0e,
0x06, 0x03, 0x55, 0x04, 0x07, 0x0c, 0x07, 0x42, 0x6f, 0x7a, 0x65, 0x6d,
0x61, 0x6e, 0x31, 0x14, 0x30, 0x12, 0x06, 0x03, 0x55, 0x04, 0x0a, 0x0c,
0x0b, 0x77, 0x6f, 0x6c, 0x66, 0x53, 0x53, 0x4c, 0x20, 0x49, 0x6e, 0x63,
0x31, 0x14, 0x30, 0x12, 0x06, 0x03, 0x55, 0x04, 0x0b, 0x0c, 0x0b, 0x45,
0x6e, 0x67, 0x69, 0x6e, 0x65, 0x65, 0x72, 0x69, 0x6e, 0x67, 0x31, 0x18,
0x30, 0x16, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x0f, 0x77, 0x77, 0x77,
0x2e, 0x77, 0x6f, 0x6c, 0x66, 0x73, 0x73, 0x6c, 0x2e, 0x63, 0x6f, 0x6d,
0x30, 0x82, 0x01, 0x22, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86,
0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x03, 0x82, 0x01, 0x0f, 0x00,
0x30, 0x82, 0x01, 0x0a, 0x02, 0x82, 0x01, 0x01, 0x00, 0xda, 0x78, 0x16,
0x05, 0x65, 0xf2, 0x85, 0xf2, 0x61, 0x7f, 0xb1, 0x4d, 0x73, 0xe2, 0x82,
0xb5, 0x3d, 0xf7, 0x9d, 0x05, 0x65, 0xed, 0x9d, 0xc3, 0x29, 0x7a, 0x92,
0x2c, 0x06, 0x5f, 0xc8, 0x13, 0x55, 0x42, 0x4e, 0xbd, 0xe2, 0x56, 0x2a,
0x4b, 0xac, 0xe6, 0x1b, 0x10, 0xc9, 0xdb, 0x9a, 0x45, 0x36, 0xed, 0xf3,
0x26, 0x8c, 0x22, 0x88, 0x1e, 0x6d, 0x2b, 0x41, 0xfa, 0x0d, 0x43, 0x88,
0x88, 0xde, 0x8d, 0x2e, 0xca, 0x6e, 0x7c, 0x62, 0x66, 0x3e, 0xfa, 0x4e,
0x71, 0xea, 0x7d, 0x3b, 0x32, 0x33, 0x5c, 0x7a, 0x7e, 0xea, 0x74, 0xbd,
0xb6, 0x8f, 0x4c, 0x1c, 0x7a, 0x79, 0x94, 0xf1, 0xe8, 0x02, 0x67, 0x98,
0x25, 0xb4, 0x31, 0x80, 0xc1, 0xae, 0xbf, 0xef, 0xf2, 0x6c, 0x78, 0x42,
0xef, 0xb5, 0xc6, 0x01, 0x47, 0x79, 0x8d, 0x92, 0xce, 0xc1, 0xb5, 0x98,
0x76, 0xf0, 0x84, 0xa2, 0x53, 0x90, 0xe5, 0x39, 0xc7, 0xbd, 0xf2, 0xbb,
0xe3, 0x3f, 0x00, 0xf6, 0xf0, 0x46, 0x86, 0xee, 0x55, 0xbd, 0x2c, 0x1f,
0x97, 0x24, 0x7c, 0xbc, 0xda, 0x2f, 0x1b, 0x53, 0xef, 0x26, 0x56, 0xcc,
0xb7, 0xd8, 0xca, 0x17, 0x20, 0x4e, 0x62, 0x03, 0x66, 0x32, 0xb3, 0xd1,
0x71, 0x26, 0x6c, 0xff, 0xd1, 0x9e, 0x44, 0x86, 0x2a, 0xae, 0xba, 0x43,
0x00, 0x13, 0x7e, 0x50, 0xdd, 0x3e, 0x27, 0x39, 0x70, 0x1c, 0x0c, 0x0b,
0xe8, 0xa2, 0xae, 0x03, 0x09, 0x2e, 0xd8, 0x71, 0xee, 0x7b, 0x1a, 0x09,
0x2d, 0xe1, 0xd5, 0xde, 0xf5, 0xa3, 0x36, 0x77, 0x90, 0x97, 0x99, 0xd7,
0x6c, 0xb7, 0x5c, 0x9d, 0xf7, 0x7e, 0x41, 0x89, 0xfe, 0xe4, 0x08, 0xc6,
0x0b, 0xe4, 0x9b, 0x5f, 0x51, 0xa6, 0x08, 0xb8, 0x99, 0x81, 0xe9, 0xce,
0xb4, 0x2d, 0xb2, 0x92, 0x9f, 0xe5, 0x1a, 0x98, 0x76, 0x20, 0x70, 0x54,
0x93, 0x02, 0x03, 0x01, 0x00, 0x01, 0xa3, 0x3b, 0x30, 0x39, 0x30, 0x18,
0x06, 0x03, 0x55, 0x1d, 0x11, 0x04, 0x11, 0x30, 0x0f, 0x82, 0x0d, 0x2a,
0x2e, 0x65, 0x78, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x2e, 0x63, 0x6f, 0x6d,
0x30, 0x1d, 0x06, 0x03, 0x55, 0x1d, 0x0e, 0x04, 0x16, 0x04, 0x14, 0x60,
0xd4, 0x26, 0xbb, 0xcc, 0x7c, 0x29, 0xa2, 0x88, 0x3c, 0x76, 0x7d, 0xb4,
0x86, 0x8b, 0x47, 0x64, 0x5b, 0x87, 0xe0, 0x30, 0x0d, 0x06, 0x09, 0x2a,
0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x0b, 0x05, 0x00, 0x03, 0x82,
0x01, 0x01, 0x00, 0xc3, 0x0d, 0x03, 0x67, 0xbb, 0x47, 0x8b, 0xf3, 0x20,
0xdc, 0x7d, 0x2e, 0xe1, 0xd9, 0xf0, 0x01, 0xc4, 0x66, 0xc2, 0xe1, 0xcd,
0xc3, 0x4a, 0x72, 0xf0, 0x6e, 0x38, 0xcf, 0x63, 0x01, 0x96, 0x9e, 0x84,
0xb9, 0xce, 0x1d, 0xba, 0x4b, 0xe0, 0x70, 0x86, 0x2b, 0x5a, 0xab, 0xec,
0xbf, 0xc2, 0xaa, 0x64, 0xa2, 0x6c, 0xd2, 0x42, 0x52, 0xd4, 0xbe, 0x8a,
0xca, 0x9c, 0x03, 0xf3, 0xd6, 0x5f, 0xcd, 0x23, 0x9f, 0xf5, 0xa9, 0x04,
0x40, 0x5b, 0x66, 0x78, 0xc0, 0xac, 0xa1, 0xdb, 0x5d, 0xd1, 0x94, 0xfc,
0x47, 0x94, 0xf5, 0x45, 0xe3, 0x70, 0x13, 0x3f, 0x66, 0x6d, 0xdd, 0x73,
0x68, 0x68, 0xe2, 0xd2, 0x89, 0xcb, 0x7f, 0xc6, 0xca, 0xd6, 0x96, 0x0b,
0xcc, 0xdd, 0xa1, 0x74, 0xda, 0x33, 0xe8, 0x9e, 0xda, 0xb7, 0xd9, 0x12,
0xab, 0x85, 0x9d, 0x0c, 0xde, 0xa0, 0x7d, 0x7e, 0xa1, 0x91, 0xed, 0xe5,
0x32, 0x7c, 0xc5, 0xea, 0x1d, 0x4a, 0xb5, 0x38, 0x63, 0x17, 0xf3, 0x4f,
0x2c, 0x4a, 0x58, 0x86, 0x09, 0x33, 0x86, 0xc4, 0xe7, 0x56, 0x6f, 0x32,
0x71, 0xb7, 0xd0, 0x83, 0x12, 0x9e, 0x26, 0x0a, 0x3a, 0x45, 0xcb, 0xd7,
0x4e, 0xab, 0xa4, 0xc3, 0xee, 0x4c, 0xc0, 0x38, 0xa1, 0xfa, 0xba, 0xfa,
0xb7, 0x80, 0x69, 0x67, 0xa3, 0xef, 0x89, 0xba, 0xce, 0x89, 0x91, 0x3d,
0x6a, 0x76, 0xe9, 0x3b, 0x32, 0x86, 0x76, 0x85, 0x6b, 0x4f, 0x7f, 0xbc,
0x7a, 0x5b, 0x31, 0x92, 0x79, 0x35, 0xf8, 0xb9, 0xb1, 0xd7, 0xdb, 0xa9,
0x6a, 0x8a, 0x91, 0x60, 0x65, 0xd4, 0x76, 0x54, 0x55, 0x57, 0xb9, 0x35,
0xe0, 0xf5, 0xbb, 0x8f, 0xd4, 0x40, 0x75, 0xbb, 0x47, 0xa8, 0xf9, 0x0f,
0xea, 0xc9, 0x6e, 0x84, 0xd5, 0xf5, 0x58, 0x2d, 0xe5, 0x76, 0x7b, 0xdf,
0x97, 0x05, 0x5e, 0xaf, 0x50, 0xf5, 0x48
};

WOLFSSL_X509* x509 = NULL;
int certSize = (int)(sizeof(cert_der) / sizeof(unsigned char));
const char *name1 = "foo.example.com";
int nameLen1 = (int)(XSTRLEN(name1));
const char *name2 = "x.y.example.com";
int nameLen2 = (int)(XSTRLEN(name2));

ExpectNotNull(x509 = wolfSSL_X509_load_certificate_buffer(
cert_der, certSize, WOLFSSL_FILETYPE_ASN1));

/* Ensure that "*.example.com" matches "foo.example.com" */
ExpectIntEQ(wolfSSL_X509_check_host(x509, name1, nameLen1,
WOLFSSL_ALWAYS_CHECK_SUBJECT, NULL), WOLFSSL_SUCCESS);
/* Ensure that "*.example.com" does NOT match "x.y.example.com" */
ExpectIntNE(wolfSSL_X509_check_host(x509, name2, nameLen2,
WOLFSSL_ALWAYS_CHECK_SUBJECT, NULL), WOLFSSL_SUCCESS);

wolfSSL_X509_free(x509);

#endif
return EXPECT_RESULT();
Expand Down Expand Up @@ -73095,6 +73206,7 @@ TEST_CASE testCases[] = {
TEST_DECL(test_wolfSSL_X509_bad_altname),
TEST_DECL(test_wolfSSL_X509_name_match),
TEST_DECL(test_wolfSSL_X509_name_match2),
TEST_DECL(test_wolfSSL_X509_name_match3),
TEST_DECL(test_wolfSSL_make_cert),

#ifndef NO_BIO
Expand Down

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