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User identity derived from certificate is using sAN2 and sAN extensions only now

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This commit is contained in:
Simon Rozman 2016-08-29 13:51:19 +02:00
parent 79499d7afd
commit b6ae394eaf
1 changed files with 39 additions and 5 deletions
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44
lib/TLS/src/Credentials.cpp
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@ -253,11 +253,45 @@ std::wstring eap::credentials_tls::get_identity() const
if (!m_identity.empty()) {
return m_identity;
} else if (m_cert) {
wstring identity;
CertGetNameString(m_cert, CERT_NAME_EMAIL_TYPE, 0, NULL, identity);
return identity;
} else
return L"";
for (DWORD idx_ext = 0; idx_ext < m_cert->pCertInfo->cExtension; idx_ext++) {
unique_ptr<CERT_ALT_NAME_INFO, LocalFree_delete<CERT_ALT_NAME_INFO> > san_info;
if (strcmp(m_cert->pCertInfo->rgExtension[idx_ext].pszObjId, szOID_SUBJECT_ALT_NAME2) == 0) {
unsigned char *output = NULL;
DWORD size_output;
if (!CryptDecodeObjectEx(
X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
szOID_SUBJECT_ALT_NAME2,
m_cert->pCertInfo->rgExtension[idx_ext].Value.pbData, m_cert->pCertInfo->rgExtension[idx_ext].Value.cbData,
CRYPT_DECODE_ALLOC_FLAG | CRYPT_DECODE_ENABLE_PUNYCODE_FLAG,
NULL,
&output, &size_output))
throw win_runtime_error(__FUNCTION__ " Error decoding subjectAltName2 certificate extension.");
san_info.reset((CERT_ALT_NAME_INFO*)output);
} else if (strcmp(m_cert->pCertInfo->rgExtension[idx_ext].pszObjId, szOID_SUBJECT_ALT_NAME) == 0) {
unsigned char *output = NULL;
DWORD size_output;
if (!CryptDecodeObjectEx(
X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
szOID_SUBJECT_ALT_NAME,
m_cert->pCertInfo->rgExtension[idx_ext].Value.pbData, m_cert->pCertInfo->rgExtension[idx_ext].Value.cbData,
CRYPT_DECODE_ALLOC_FLAG | CRYPT_DECODE_ENABLE_PUNYCODE_FLAG,
NULL,
&output, &size_output))
throw win_runtime_error(__FUNCTION__ " Error decoding subjectAltName certificate extension.");
san_info.reset((CERT_ALT_NAME_INFO*)output);
} else {
// Skip this extension.
continue;
}
for (DWORD idx_entry = 0; idx_entry < san_info->cAltEntry; idx_entry++) {
if (san_info->rgAltEntry[idx_entry].dwAltNameChoice == CERT_ALT_NAME_RFC822_NAME)
return san_info->rgAltEntry[idx_entry].pwszRfc822Name;
}
}
}
return L"";
}