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Refactored certificate API:

Browse Source 
* Proper encapsulation
* known_hosts2 backend extended (storing PEM)
* New backend storing each host certificate in a file
This commit is contained in:
akallabeth 2021-04-13 11:01:43 +02:00 committed by akallabeth
parent c3171b90cb
commit b494a193db
21 changed files with 1776 additions and 743 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
CMakeLists.txt
View File

@ -180,6 +180,7 @@ endif()
if(BUILD_TESTING)
set(EXPORT_ALL_SYMBOLS TRUE)
set(CTEST_OUTPUT_ON_FAILURE TRUE)
elseif(NOT DEFINED EXPORT_ALL_SYMBOLS)
set(EXPORT_ALL_SYMBOLS FALSE)
endif()

6
channels/printer/client/printer_main.c
View File

@ -80,7 +80,7 @@ static char* get_printer_config_path(const rdpSettings* settings, const WCHAR* n
{
const char* path = settings->ConfigPath;
char* dir = GetCombinedPath(path, "printers");
char* bname = crypto_base64_encode((const BYTE*)name, (int)length);
char* bname = crypto_base64_encode((const BYTE*)name, length);
char* config = GetCombinedPath(dir, bname);
if (config && !PathFileExistsA(config))
@ -197,8 +197,8 @@ fail:
if (rc && (lowSize <= INT_MAX))
{
int blen = 0;
crypto_base64_decode(fdata, (int)lowSize, (BYTE**)data, &blen);
size_t blen = 0;
crypto_base64_decode(fdata, lowSize, (BYTE**)data, &blen);
if (*data && (blen > 0))
*length = (UINT32)blen;

31
client/common/client.c
View File

@ -540,7 +540,6 @@ DWORD client_cli_verify_certificate_ex(freerdp* instance, const char* host, UINT
const char* issuer, const char* fingerprint, DWORD flags)
{
const char* type = "RDP-Server";
if (flags & VERIFY_CERT_FLAG_GATEWAY)
type = "RDP-Gateway";
@ -551,6 +550,16 @@ DWORD client_cli_verify_certificate_ex(freerdp* instance, const char* host, UINT
printf("\tCommon Name: %s\n", common_name);
printf("\tSubject: %s\n", subject);
printf("\tIssuer: %s\n", issuer);
/* Newer versions of FreeRDP allow exposing the whole PEM by setting
* FreeRDP_CertificateCallbackPreferPEM to TRUE
*/
if (flags & VERIFY_CERT_FLAG_FP_IS_PEM)
{
printf("\t----------- Certificate --------------\n");
printf("%s\n", fingerprint);
printf("\t--------------------------------------\n");
}
else
printf("\tThumbprint: %s\n", fingerprint);
printf("The above X.509 certificate could not be verified, possibly because you do not have\n"
@ -641,11 +650,31 @@ DWORD client_cli_verify_changed_certificate_ex(freerdp* instance, const char* ho
printf("\tCommon Name: %s\n", common_name);
printf("\tSubject: %s\n", subject);
printf("\tIssuer: %s\n", issuer);
/* Newer versions of FreeRDP allow exposing the whole PEM by setting
* FreeRDP_CertificateCallbackPreferPEM to TRUE
*/
if (flags & VERIFY_CERT_FLAG_FP_IS_PEM)
{
printf("\t----------- Certificate --------------\n");
printf("%s\n", fingerprint);
printf("\t--------------------------------------\n");
}
else
printf("\tThumbprint: %s\n", fingerprint);
printf("\n");
printf("Old Certificate details:\n");
printf("\tSubject: %s\n", old_subject);
printf("\tIssuer: %s\n", old_issuer);
/* Newer versions of FreeRDP allow exposing the whole PEM by setting
* FreeRDP_CertificateCallbackPreferPEM to TRUE
*/
if (flags & VERIFY_CERT_FLAG_FP_IS_PEM)
{
printf("\t----------- Certificate --------------\n");
printf("%s\n", old_fingerprint);
printf("\t--------------------------------------\n");
}
else
printf("\tThumbprint: %s\n", old_fingerprint);
printf("\n");
if (flags & VERIFY_CERT_FLAG_MATCH_LEGACY_SHA1)

7
client/common/cmdline.c
View File

@ -3116,16 +3116,15 @@ int freerdp_client_settings_parse_command_line_arguments(rdpSettings* settings,
CommandLineSwitchCase(arg, "reconnect-cookie")
{
BYTE* base64 = NULL;
int length;
size_t length;
if (!arg->Value)
return COMMAND_LINE_ERROR_UNEXPECTED_VALUE;
crypto_base64_decode((const char*)(arg->Value), (int)strlen(arg->Value), &base64,
&length);
crypto_base64_decode((const char*)(arg->Value), strlen(arg->Value), &base64, &length);
if ((base64 != NULL) && (length == sizeof(ARC_SC_PRIVATE_PACKET)))
{
memcpy(settings->ServerAutoReconnectCookie, base64, (size_t)length);
memcpy(settings->ServerAutoReconnectCookie, base64, length);
}
else
{

63
include/freerdp/crypto/certificate.h
View File

@ -32,43 +32,46 @@ typedef struct rdp_certificate_store rdpCertificateStore;
#include <winpr/print.h>
#include <winpr/stream.h>
struct rdp_certificate_data
{
char* hostname;
UINT16 port;
char* subject;
char* issuer;
char* fingerprint;
};
struct rdp_certificate_store
{
char* path;
char* file;
rdpSettings* settings;
rdpCertificateData* certificate_data;
};
#ifdef __cplusplus
extern "C"
{
#endif
FREERDP_API rdpCertificateData* certificate_data_new(const char* hostname, UINT16 port,
const char* subject, const char* issuer,
const char* fingerprint);
FREERDP_API rdpCertificateData* certificate_data_new(const char* hostname, UINT16 port);
FREERDP_API void certificate_data_free(rdpCertificateData* certificate_data);
FREERDP_API rdpCertificateStore* certificate_store_new(rdpSettings* settings);
FREERDP_API BOOL certificate_data_replace(rdpCertificateStore* certificate_store,
rdpCertificateData* certificate_data);
FREERDP_API const char* certificate_data_get_host(const rdpCertificateData* cert);
FREERDP_API UINT16 certificate_data_get_port(const rdpCertificateData* cert);
FREERDP_API BOOL certificate_data_set_pem(rdpCertificateData* cert, const char* pem);
FREERDP_API BOOL certificate_data_set_subject(rdpCertificateData* cert, const char* subject);
FREERDP_API BOOL certificate_data_set_issuer(rdpCertificateData* cert, const char* issuer);
FREERDP_API BOOL certificate_data_set_fingerprint(rdpCertificateData* cert,
const char* fingerprint);
FREERDP_API const char* certificate_data_get_pem(const rdpCertificateData* cert);
FREERDP_API const char* certificate_data_get_subject(const rdpCertificateData* cert);
FREERDP_API const char* certificate_data_get_issuer(const rdpCertificateData* cert);
FREERDP_API const char* certificate_data_get_fingerprint(const rdpCertificateData* cert);
FREERDP_API rdpCertificateStore* certificate_store_new(const rdpSettings* settings);
FREERDP_API void certificate_store_free(rdpCertificateStore* certificate_store);
FREERDP_API int certificate_data_match(rdpCertificateStore* certificate_store,
rdpCertificateData* certificate_data);
FREERDP_API BOOL certificate_data_print(rdpCertificateStore* certificate_store,
rdpCertificateData* certificate_data);
FREERDP_API BOOL certificate_get_stored_data(rdpCertificateStore* certificate_store,
rdpCertificateData* certificate_data,
char** subject, char** issuer, char** fingerprint);
FREERDP_API int certificate_store_contains_data(rdpCertificateStore* certificate_store,
const rdpCertificateData* certificate_data);
FREERDP_API rdpCertificateData*
certificate_store_load_data(rdpCertificateStore* certificate_store, const char* host,
UINT16 port);
FREERDP_API BOOL certificate_store_save_data(rdpCertificateStore* certificate_store,
const rdpCertificateData* certificate_data);
FREERDP_API BOOL certificate_store_remove_data(rdpCertificateStore* certificate_store,
const rdpCertificateData* certificate_data);
FREERDP_API const char*
certificate_store_get_hosts_file(const rdpCertificateStore* certificate_store);
FREERDP_API const char*
certificate_store_get_certs_path(const rdpCertificateStore* certificate_store);
FREERDP_API const char*
certificate_store_get_hosts_path(const rdpCertificateStore* certificate_store);
#ifdef __cplusplus
}

8
include/freerdp/crypto/crypto.h
View File

@ -57,6 +57,8 @@ extern "C"
FREERDP_API BYTE* crypto_cert_hash(X509* xcert, const char* hash, UINT32* length);
FREERDP_API char* crypto_cert_fingerprint_by_hash(X509* xcert, const char* hash);
FREERDP_API char* crypto_cert_fingerprint(X509* xcert);
FREERDP_API BYTE* crypto_cert_pem(X509* xcert, STACK_OF(X509) * chain, size_t* length);
FREERDP_API X509* crypto_cert_from_pem(const char* data, size_t length, BOOL fromFile);
FREERDP_API char* crypto_cert_subject(X509* xcert);
FREERDP_API char* crypto_cert_subject_common_name(X509* xcert, int* length);
FREERDP_API char** crypto_cert_get_dns_names(X509* xcert, int* count, int** lengths);
@ -102,9 +104,9 @@ extern "C"
BYTE* output);
FREERDP_API void crypto_reverse(BYTE* data, int length);
FREERDP_API char* crypto_base64_encode(const BYTE* data, int length);
FREERDP_API void crypto_base64_decode(const char* enc_data, int length, BYTE** dec_data,
int* res_length);
FREERDP_API char* crypto_base64_encode(const BYTE* data, size_t length);
FREERDP_API void crypto_base64_decode(const char* enc_data, size_t length, BYTE** dec_data,
size_t* res_length);
#ifdef __cplusplus
}

15
include/freerdp/freerdp.h
View File

@ -70,6 +70,7 @@ extern "C"
#define VERIFY_CERT_FLAG_CHANGED 0x40
#define VERIFY_CERT_FLAG_MISMATCH 0x80
#define VERIFY_CERT_FLAG_MATCH_LEGACY_SHA1 0x100
#define VERIFY_CERT_FLAG_FP_IS_PEM 0x200
/* Message types used by gateway messaging callback */
#define GATEWAY_MESSAGE_CONSENT 1
@ -91,7 +92,8 @@ extern "C"
* @param common_name The certificate registered hostname.
* @param subject The common name of the certificate.
* @param issuer The issuer of the certificate.
* @param fingerprint The fingerprint of the certificate.
* @param fingerprint The fingerprint of the certificate (old) or the certificate in PEM
* format
* @param host_mismatch A flag indicating the certificate
* subject does not match the host connecting to.
*
@ -110,7 +112,8 @@ extern "C"
* @param common_name The certificate registered hostname.
* @param subject The common name of the certificate.
* @param issuer The issuer of the certificate.
* @param fingerprint The fingerprint of the certificate.
* @param fingerprint The fingerprint of the certificate (old) or the certificate in PEM
* format (VERIFY_CERT_FLAG_FP_IS_PEM set)
* @param flags Flags of type VERIFY_CERT_FLAG*
*
* @return 1 to accept and store a certificate, 2 to accept
@ -149,10 +152,12 @@ extern "C"
* @param common_name The certificate registered hostname.
* @param subject The common name of the new certificate.
* @param issuer The issuer of the new certificate.
* @param fingerprint The fingerprint of the new certificate.
* @param fingerprint The fingerprint of the new certificate (old) or the certificate in
* PEM format (VERIFY_CERT_FLAG_FP_IS_PEM set)
* @param old_subject The common name of the old certificate.
* @param old_issuer The issuer of the new certificate.
* @param old_fingerprint The fingerprint of the old certificate.
* @param old_fingerprint The fingerprint of the old certificate (old) or the certificate in
* PEM format (VERIFY_CERT_FLAG_FP_IS_PEM set)
* @param flags Flags of type VERIFY_CERT_FLAG*
*
* @return 1 to accept and store a certificate, 2 to accept
@ -169,7 +174,7 @@ extern "C"
* a certificate.
*
* @param instance Pointer to the freerdp instance.
* @param data Pointer to certificate data in PEM format.
* @param data Pointer to certificate data (full chain) in PEM format.
* @param length The length of the certificate data.
* @param hostname The hostname connecting to.
* @param port The port connecting to.

6
include/freerdp/settings.h
View File

@ -700,6 +700,8 @@ typedef struct _RDPDR_PARALLEL RDPDR_PARALLEL;
#define FreeRDP_AutoAcceptCertificate (1419)
#define FreeRDP_AutoDenyCertificate (1420)
#define FreeRDP_CertificateAcceptedFingerprints (1421)
#define FreeRDP_CertificateUseKnownHosts (1422)
#define FreeRDP_CertificateCallbackPreferPEM (1423)
#define FreeRDP_Workarea (1536)
#define FreeRDP_Fullscreen (1537)
#define FreeRDP_PercentScreen (1538)
@ -1176,7 +1178,9 @@ struct rdp_settings
ALIGN64 BOOL AutoAcceptCertificate; /* 1419 */
ALIGN64 BOOL AutoDenyCertificate; /* 1420 */
ALIGN64 char* CertificateAcceptedFingerprints; /* 1421 */
UINT64 padding1472[1472 - 1422]; /* 1422 */
ALIGN64 BOOL CertificateUseKnownHosts; /* 1422 */
ALIGN64 BOOL CertificateCallbackPreferPEM; /* 1423 */
UINT64 padding1472[1472 - 1424]; /* 1424 */
UINT64 padding1536[1536 - 1472]; /* 1472 */
/**

14
libfreerdp/common/settings_getters.c
View File

@ -74,6 +74,12 @@ BOOL freerdp_settings_get_bool(const rdpSettings* settings, size_t id)
case FreeRDP_BitmapCompressionDisabled:
return settings->BitmapCompressionDisabled;
case FreeRDP_CertificateCallbackPreferPEM:
return settings->CertificateCallbackPreferPEM;
case FreeRDP_CertificateUseKnownHosts:
return settings->CertificateUseKnownHosts;
case FreeRDP_ColorPointerFlag:
return settings->ColorPointerFlag;
@ -602,6 +608,14 @@ BOOL freerdp_settings_set_bool(rdpSettings* settings, size_t id, BOOL val)
settings->BitmapCompressionDisabled = val;
break;
case FreeRDP_CertificateCallbackPreferPEM:
settings->CertificateCallbackPreferPEM = val;
break;
case FreeRDP_CertificateUseKnownHosts:
settings->CertificateUseKnownHosts = val;
break;
case FreeRDP_ColorPointerFlag:
settings->ColorPointerFlag = val;
break;

2
libfreerdp/common/settings_str.c
View File

@ -34,6 +34,8 @@ static const struct settings_str_entry settings_map[] = {
{ FreeRDP_BitmapCachePersistEnabled, 0, "FreeRDP_BitmapCachePersistEnabled" },
{ FreeRDP_BitmapCacheV3Enabled, 0, "FreeRDP_BitmapCacheV3Enabled" },
{ FreeRDP_BitmapCompressionDisabled, 0, "FreeRDP_BitmapCompressionDisabled" },
{ FreeRDP_CertificateCallbackPreferPEM, 0, "FreeRDP_CertificateCallbackPreferPEM" },
{ FreeRDP_CertificateUseKnownHosts, 0, "FreeRDP_CertificateUseKnownHosts" },
{ FreeRDP_ColorPointerFlag, 0, "FreeRDP_ColorPointerFlag" },
{ FreeRDP_CompressionEnabled, 0, "FreeRDP_CompressionEnabled" },
{ FreeRDP_ConsoleSession, 0, "FreeRDP_ConsoleSession" },

4
libfreerdp/core/gateway/ncacn_http.c
View File

@ -105,7 +105,7 @@ BOOL rpc_ncacn_http_send_in_channel_request(RpcChannel* inChannel)
BOOL rpc_ncacn_http_recv_in_channel_response(RpcChannel* inChannel, HttpResponse* response)
{
const char* token64 = NULL;
int ntlmTokenLength = 0;
size_t ntlmTokenLength = 0;
BYTE* ntlmTokenData = NULL;
rdpNtlm* ntlm;
@ -259,7 +259,7 @@ BOOL rpc_ncacn_http_send_out_channel_request(RpcChannel* outChannel, BOOL replac
BOOL rpc_ncacn_http_recv_out_channel_response(RpcChannel* outChannel, HttpResponse* response)
{
const char* token64 = NULL;
int ntlmTokenLength = 0;
size_t ntlmTokenLength = 0;
BYTE* ntlmTokenData = NULL;
rdpNtlm* ntlm;

13
libfreerdp/core/gateway/rdg.c
View File

@ -1181,7 +1181,7 @@ static BOOL rdg_handle_ntlm_challenge(rdpNtlm* ntlm, HttpResponse* response)
BOOL continueNeeded = FALSE;
size_t len;
const char* token64 = NULL;
int ntlmTokenLength = 0;
size_t ntlmTokenLength = 0;
BYTE* ntlmTokenData = NULL;
long StatusCode;
@ -1203,16 +1203,7 @@ static BOOL rdg_handle_ntlm_challenge(rdpNtlm* ntlm, HttpResponse* response)
len = strlen(token64);
if (len > INT_MAX)
return FALSE;
crypto_base64_decode(token64, (int)len, &ntlmTokenData, &ntlmTokenLength);
if (ntlmTokenLength < 0)
{
free(ntlmTokenData);
return FALSE;
}
crypto_base64_decode(token64, len, &ntlmTokenData, &ntlmTokenLength);
if (ntlmTokenData && ntlmTokenLength)
{

4
libfreerdp/core/settings.c
View File

@ -381,7 +381,9 @@ rdpSettings* freerdp_settings_new(DWORD flags)
!freerdp_settings_set_bool(settings, FreeRDP_DisableCredentialsDelegation, FALSE) ||
!freerdp_settings_set_uint32(settings, FreeRDP_AuthenticationLevel, 2) ||
!freerdp_settings_set_uint32(settings, FreeRDP_ChannelCount, 0) ||
!freerdp_settings_set_uint32(settings, FreeRDP_ChannelDefArraySize, 32))
!freerdp_settings_set_uint32(settings, FreeRDP_ChannelDefArraySize, 32) ||
!freerdp_settings_set_bool(settings, FreeRDP_CertificateUseKnownHosts, TRUE) ||
!freerdp_settings_set_bool(settings, FreeRDP_CertificateCallbackPreferPEM, FALSE))
goto out_fail;
settings->ChannelDefArray = (CHANNEL_DEF*)calloc(

2
libfreerdp/core/test/settings_property_lists.h
View File

@ -23,6 +23,8 @@ static const size_t bool_list_indices[] = {
FreeRDP_BitmapCachePersistEnabled,
FreeRDP_BitmapCacheV3Enabled,
FreeRDP_BitmapCompressionDisabled,
FreeRDP_CertificateCallbackPreferPEM,
FreeRDP_CertificateUseKnownHosts,
FreeRDP_ColorPointerFlag,
FreeRDP_CompressionEnabled,
FreeRDP_ConsoleSession,

14
libfreerdp/crypto/base64.c
View File

@ -27,7 +27,7 @@
static const char base64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
char* crypto_base64_encode(const BYTE* data, int length)
char* crypto_base64_encode(const BYTE* data, size_t length)
{
int c;
const BYTE* q;
@ -114,12 +114,12 @@ static int base64_decode_char(char c)
return -1;
}
static void* base64_decode(const char* s, int length, int* data_len)
static void* base64_decode(const char* s, size_t length, size_t* data_len)
{
int n[4];
BYTE* q;
BYTE* data;
int nBlocks, i, outputLen;
size_t nBlocks, i, outputLen;
if (length % 4)
return NULL;
@ -132,6 +132,12 @@ static void* base64_decode(const char* s, int length, int* data_len)
nBlocks = (length / 4);
outputLen = 0;
if (nBlocks < 1)
{
free(data);
return NULL;
}
for (i = 0; i < nBlocks - 1; i++, q += 3)
{
n[0] = base64_decode_char(*s++);
@ -192,7 +198,7 @@ out_free:
return NULL;
}
void crypto_base64_decode(const char* enc_data, int length, BYTE** dec_data, int* res_length)
void crypto_base64_decode(const char* enc_data, size_t length, BYTE** dec_data, size_t* res_length)
{
*dec_data = base64_decode(enc_data, length, res_length);
}

1111
libfreerdp/crypto/certificate.c
View File

File diff suppressed because it is too large Load Diff

209
libfreerdp/crypto/crypto.c
View File

@ -250,19 +250,27 @@ BYTE* crypto_cert_hash(X509* xcert, const char* hash, UINT32* length)
BYTE* fp;
const EVP_MD* md = EVP_get_digestbyname(hash);
if (!md)
{
WLog_ERR(TAG, "System does not support %s hash!", hash);
return NULL;
if (!length)
return NULL;
if (!xcert)
}
if (!xcert || !length)
{
WLog_ERR(TAG, "[%s] Invalid arugments: xcert=%p, length=%p", __FUNCTION__, xcert, length);
return NULL;
}
fp = calloc(fp_len, sizeof(BYTE));
if (!fp)
{
WLog_ERR(TAG, "[%s] could not allocate %" PRIuz " bytes", __FUNCTION__, fp_len);
return NULL;
}
if (X509_digest(xcert, md, fp, &fp_len) != 1)
{
free(fp);
WLog_ERR(TAG, "certificate does not have a %s hash!", hash);
return NULL;
}
@ -276,7 +284,16 @@ char* crypto_cert_fingerprint_by_hash(X509* xcert, const char* hash)
BYTE* fp;
char* p;
char* fp_buffer;
if (!xcert)
{
WLog_ERR(TAG, "Invalid certificate %p", xcert);
return NULL;
}
if (!hash)
{
WLog_ERR(TAG, "Invalid certificate hash %p", hash);
return NULL;
}
fp = crypto_cert_hash(xcert, hash, &fp_len);
if (!fp)
return NULL;
@ -322,7 +339,16 @@ static char* crypto_print_name(X509_NAME* name)
char* crypto_cert_subject(X509* xcert)
{
return crypto_print_name(X509_get_subject_name(xcert));
char* subject;
if (!xcert)
{
WLog_ERR(TAG, "Invalid certificate %p", xcert);
return NULL;
}
subject = crypto_print_name(X509_get_subject_name(xcert));
if (!subject)
WLog_ERR(TAG, "certificate does not have a subject!");
return subject;
}
char* crypto_cert_subject_common_name(X509* xcert, int* length)
@ -799,7 +825,16 @@ char** crypto_cert_get_dns_names(X509* x509, int* count, int** lengths)
char* crypto_cert_issuer(X509* xcert)
{
return crypto_print_name(X509_get_issuer_name(xcert));
char* issuer;
if (!xcert)
{
WLog_ERR(TAG, "Invalid certificate %p", xcert);
return NULL;
}
issuer = crypto_print_name(X509_get_issuer_name(xcert));
if (!issuer)
WLog_ERR(TAG, "certificate does not have an issuer!");
return issuer;
}
static int verify_cb(int ok, X509_STORE_CTX* csc)
@ -893,22 +928,24 @@ end:
rdpCertificateData* crypto_get_certificate_data(X509* xcert, const char* hostname, UINT16 port)
{
char* issuer;
char* subject;
char* fp;
rdpCertificateData* certdata;
fp = crypto_cert_fingerprint(xcert);
char* pem = NULL;
size_t length;
rdpCertificateData* certdata = NULL;
if (!fp)
return NULL;
issuer = crypto_cert_issuer(xcert);
subject = crypto_cert_subject(xcert);
certdata = certificate_data_new(hostname, port, issuer, subject, fp);
free(subject);
free(issuer);
free(fp);
pem = (char*)crypto_cert_pem(xcert, NULL, &length);
if (!pem)
goto fail;
certdata = certificate_data_new(hostname, port);
if (!certdata)
goto fail;
if (!certificate_data_set_pem(certdata, pem))
goto fail;
free(pem);
return certdata;
fail:
certificate_data_free(certdata);
free(pem);
return NULL;
}
void crypto_cert_print_info(X509* xcert)
@ -939,3 +976,135 @@ out_free_issuer:
free(issuer);
free(subject);
}
BYTE* crypto_cert_pem(X509* xcert, STACK_OF(X509) * chain, size_t* plength)
{
BIO* bio;
int status, count, x;
size_t offset;
size_t length = 0;
BOOL rc = FALSE;
BYTE* pemCert = NULL;
if (!xcert || !plength)
return NULL;
/**
* Don't manage certificates internally, leave it up entirely to the external client
* implementation
*/
bio = BIO_new(BIO_s_mem());
if (!bio)
{
WLog_ERR(TAG, "BIO_new() failure");
return NULL;
}
status = PEM_write_bio_X509(bio, xcert);
if (status < 0)
{
WLog_ERR(TAG, "PEM_write_bio_X509 failure: %d", status);
goto fail;
}
if (chain)
{
count = sk_X509_num(chain);
for (x = 0; x < count; x++)
{
X509* c = sk_X509_value(chain, x);
status = PEM_write_bio_X509(bio, c);
if (status < 0)
{
WLog_ERR(TAG, "PEM_write_bio_X509 failure: %d", status);
goto fail;
}
}
}
offset = 0;
length = 2048;
pemCert = (BYTE*)malloc(length + 1);
if (!pemCert)
{
WLog_ERR(TAG, "error allocating pemCert");
goto fail;
}
status = BIO_read(bio, pemCert, length);
if (status < 0)
{
WLog_ERR(TAG, "failed to read certificate");
goto fail;
}
offset += (size_t)status;
while (offset >= length)
{
int new_len;
BYTE* new_cert;
new_len = length * 2;
new_cert = (BYTE*)realloc(pemCert, new_len + 1);
if (!new_cert)
goto fail;
length = new_len;
pemCert = new_cert;
status = BIO_read(bio, &pemCert[offset], length - offset);
if (status < 0)
break;
offset += status;
}
if (status < 0)
{
WLog_ERR(TAG, "failed to read certificate");
goto fail;
}
length = offset;
pemCert[length] = '\0';
*plength = length;
rc = TRUE;
fail:
if (!rc)
{
free(pemCert);
pemCert = NULL;
}
BIO_free_all(bio);
return pemCert;
}
X509* crypto_cert_from_pem(const char* data, size_t len, BOOL fromFile)
{
X509* x509 = NULL;
BIO* bio;
if (fromFile)
bio = BIO_new_file(data, "rb");
else
bio = BIO_new_mem_buf(data, len);
if (!bio)
{
WLog_ERR(TAG, "BIO_new failed for certificate");
return NULL;
}
x509 = PEM_read_bio_X509(bio, NULL, NULL, 0);
BIO_free_all(bio);
if (!x509)
WLog_ERR(TAG, "PEM_read_bio_X509 returned NULL [input length %" PRIuz "]", len);
return x509;
}

4
libfreerdp/crypto/test/TestBase64.c
View File

@ -22,7 +22,7 @@
struct Encode64test
{
const char* input;
int len;
size_t len;
const char* output;
};
@ -41,7 +41,7 @@ static const struct Encode64test encodeTests[] = {
int TestBase64(int argc, char* argv[])
{
int i, testNb = 0;
int outLen;
size_t outLen;
BYTE* decoded;
WINPR_UNUSED(argc);
WINPR_UNUSED(argv);

724
libfreerdp/crypto/test/TestKnownHosts.c
View File

@ -23,11 +23,104 @@
#include <freerdp/crypto/certificate.h>
/* Some certificates copied from /usr/share/ca-certificates */
static const char pem1[] = "-----BEGIN CERTIFICATE-----\n"
"MIIFWjCCA0KgAwIBAgIQbkepxUtHDA3sM9CJuRz04TANBgkqhkiG9w0BAQwFADBH\n"
"MQswCQYDVQQGEwJVUzEiMCAGA1UEChMZR29vZ2xlIFRydXN0IFNlcnZpY2VzIExM\n"
"QzEUMBIGA1UEAxMLR1RTIFJvb3QgUjEwHhcNMTYwNjIyMDAwMDAwWhcNMzYwNjIy\n"
"MDAwMDAwWjBHMQswCQYDVQQGEwJVUzEiMCAGA1UEChMZR29vZ2xlIFRydXN0IFNl\n"
"cnZpY2VzIExMQzEUMBIGA1UEAxMLR1RTIFJvb3QgUjEwggIiMA0GCSqGSIb3DQEB\n"
"AQUAA4ICDwAwggIKAoICAQC2EQKLHuOhd5s73L+UPreVp0A8of2C+X0yBoJx9vaM\n"
"f/vo27xqLpeXo4xL+Sv2sfnOhB2x+cWX3u+58qPpvBKJXqeqUqv4IyfLpLGcY9vX\n"
"mX7wCl7raKb0xlpHDU0QM+NOsROjyBhsS+z8CZDfnWQpJSMHobTSPS5g4M/SCYe7\n"
"zUjwTcLCeoiKu7rPWRnWr4+wB7CeMfGCwcDfLqZtbBkOtdh+JhpFAz2weaSUKK0P\n"
"fyblqAj+lug8aJRT7oM6iCsVlgmy4HqMLnXWnOunVmSPlk9orj2XwoSPwLxAwAtc\n"
"vfaHszVsrBhQf4TgTM2S0yDpM7xSma8ytSmzJSq0SPly4cpk9+aCEI3oncKKiPo4\n"
"Zor8Y/kB+Xj9e1x3+naH+uzfsQ55lVe0vSbv1gHR6xYKu44LtcXFilWr06zqkUsp\n"
"zBmkMiVOKvFlRNACzqrOSbTqn3yDsEB750Orp2yjj32JgfpMpf/VjsPOS+C12LOO\n"
"Rc92wO1AK/1TD7Cn1TsNsYqiA94xrcx36m97PtbfkSIS5r762DL8EGMUUXLeXdYW\n"
"k70paDPvOmbsB4om3xPXV2V4J95eSRQAogB/mqghtqmxlbCluQ0WEdrHbEg8QOB+\n"
"DVrNVjzRlwW5y0vtOUucxD/SVRNuJLDWcfr0wbrM7Rv1/oFB2ACYPTrIrnqYNxgF\n"
"lQIDAQABo0IwQDAOBgNVHQ8BAf8EBAMCAQYwDwYDVR0TAQH/BAUwAwEB/zAdBgNV\n"
"HQ4EFgQU5K8rJnEaK0gnhS9SZizv8IkTcT4wDQYJKoZIhvcNAQEMBQADggIBADiW\n"
"Cu49tJYeX++dnAsznyvgyv3SjgofQXSlfKqE1OXyHuY3UjKcC9FhHb8owbZEKTV1\n"
"d5iyfNm9dKyKaOOpMQkpAWBz40d8U6iQSifvS9efk+eCNs6aaAyC58/UEBZvXw6Z\n"
"XPYfcX3v73svfuo21pdwCxXu11xWajOl40k4DLh9+42FpLFZXvRq4d2h9mREruZR\n"
"gyFmxhE+885H7pwoHyXa/6xmld01D1zvICxi/ZG6qcz8WpyTgYMpl0p8WnK0OdC3\n"
"d8t5/Wk6kjftbjhlRn7pYL15iJdfOBL07q9bgsiG1eGZbYwE8na6SfZu6W0eX6Dv\n"
"J4J2QPim01hcDyxC2kLGe4g0x8HYRZvBPsVhHdljUEn2NIVq4BjFbkerQUIpm/Zg\n"
"DdIx02OYI5NaAIFItO/Nis3Jz5nu2Z6qNuFoS3FJFDYoOj0dzpqPJeaAcWErtXvM\n"
"+SUWgeExX6GjfhaknBZqlxi9dnKlC54dNuYvoS++cJEPqOba+MSSQGwlfnuzCdyy\n"
"F62ARPBopY+Udf90WuioAnwMCeKpSwughQtiue+hMZL77/ZRBIls6Kl0obsXs7X9\n"
"SQ98POyDGCBDTtWTurQ0sR8WNh8M5mQ5Fkzc4P4dyKliPUDqysU0ArSuiYgzNdws\n"
"E3PYJ/HQcu51OyLemGhmW/HGY0dVHLqlCFF1pkgl\n"
"-----END CERTIFICATE-----";
static const char pem2[] = "-----BEGIN CERTIFICATE-----\n"
"MIIFWjCCA0KgAwIBAgIQbkepxlqz5yDFMJo/aFLybzANBgkqhkiG9w0BAQwFADBH\n"
"MQswCQYDVQQGEwJVUzEiMCAGA1UEChMZR29vZ2xlIFRydXN0IFNlcnZpY2VzIExM\n"
"QzEUMBIGA1UEAxMLR1RTIFJvb3QgUjIwHhcNMTYwNjIyMDAwMDAwWhcNMzYwNjIy\n"
"MDAwMDAwWjBHMQswCQYDVQQGEwJVUzEiMCAGA1UEChMZR29vZ2xlIFRydXN0IFNl\n"
"cnZpY2VzIExMQzEUMBIGA1UEAxMLR1RTIFJvb3QgUjIwggIiMA0GCSqGSIb3DQEB\n"
"AQUAA4ICDwAwggIKAoICAQDO3v2m++zsFDQ8BwZabFn3GTXd98GdVarTzTukk3Lv\n"
"CvptnfbwhYBboUhSnznFt+4orO/LdmgUud+tAWyZH8QiHZ/+cnfgLFuv5AS/T3Kg\n"
"GjSY6Dlo7JUle3ah5mm5hRm9iYz+re026nO8/4Piy33B0s5Ks40FnotJk9/BW9Bu\n"
"XvAuMC6C/Pq8tBcKSOWIm8Wba96wyrQD8Nr0kLhlZPdcTK3ofmZemde4wj7I0BOd\n"
"re7kRXuJVfeKH2JShBKzwkCX44ofR5GmdFrS+LFjKBC4swm4VndAoiaYecb+3yXu\n"
"PuWgf9RhD1FLPD+M2uFwdNjCaKH5wQzpoeJ/u1U8dgbuak7MkogwTZq9TwtImoS1\n"
"mKPV+3PBV2HdKFZ1E66HjucMUQkQdYhMvI35ezzUIkgfKtzra7tEscszcTJGr61K\n"
"8YzodDqs5xoic4DSMPclQsciOzsSrZYuxsN2B6ogtzVJV+mSSeh2FnIxZyuWfoqj\n"
"x5RWIr9qS34BIbIjMt/kmkRtWVtd9QCgHJvGeJeNkP+byKq0rxFROV7Z+2et1VsR\n"
"nTKaG73VululycslaVNVJ1zgyjbLiGH7HrfQy+4W+9OmTN6SpdTi3/UGVN4unUu0\n"
"kzCqgc7dGtxRcw1PcOnlthYhGXmy5okLdWTK1au8CcEYof/UVKGFPP0UJAOyh9Ok\n"
"twIDAQABo0IwQDAOBgNVHQ8BAf8EBAMCAQYwDwYDVR0TAQH/BAUwAwEB/zAdBgNV\n"
"HQ4EFgQUu//KjiOfT5nK2+JopqUVJxce2Q4wDQYJKoZIhvcNAQEMBQADggIBALZp\n"
"8KZ3/p7uC4Gt4cCpx/k1HUCCq+YEtN/L9x0Pg/B+E02NjO7jMyLDOfxA325BS0JT\n"
"vhaI8dI4XsRomRyYUpOM52jtG2pzegVATX9lO9ZY8c6DR2Dj/5epnGB3GFW1fgiT\n"
"z9D2PGcDFWEJ+YF59exTpJ/JjwGLc8R3dtyDovUMSRqodt6Sm2T4syzFJ9MHwAiA\n"
"pJiS4wGWAqoC7o87xdFtCjMwc3i5T1QWvwsHoaRc5svJXISPD+AVdyx+Jn7axEvb\n"
"pxZ3B7DNdehyQtaVhJ2Gg/LkkM0JR9SLA3DaWsYDQvTtN6LwG1BUSw7YhN4ZKJmB\n"
"R64JGz9I0cNv4rBgF/XuIwKl2gBbbZCr7qLpGzvpx0QnRY5rn/WkhLx3+WuXrD5R\n"
"RaIRpsyF7gpo8j5QOHokYh4XIDdtak23CZvJ/KRY9bb7nE4Yu5UC56GtmwfuNmsk\n"
"0jmGwZODUNKBRqhfYlcsu2xkiAhu7xNUX90txGdj08+JN7+dIPT7eoOboB6BAFDC\n"
"5AwiWVIQ7UNWhwD4FFKnHYuTjKJNRn8nxnGbJN7k2oaLDX5rIMHAnuFl2GqjpuiF\n"
"izoHCBy69Y9Vmhh1fuXsgWbRIXOhNUQLgD1bnF5vKheW0YMjiGZt5obicDIvUiLn\n"
"yOd/xCxgXS/Dr55FBcOEArf9LAhST4Ldo/DUhgkC\n"
"-----END CERTIFICATE-----";
static const char pem3[] = "-----BEGIN CERTIFICATE-----\n"
"MIICDDCCAZGgAwIBAgIQbkepx2ypcyRAiQ8DVd2NHTAKBggqhkjOPQQDAzBHMQsw\n"
"CQYDVQQGEwJVUzEiMCAGA1UEChMZR29vZ2xlIFRydXN0IFNlcnZpY2VzIExMQzEU\n"
"MBIGA1UEAxMLR1RTIFJvb3QgUjMwHhcNMTYwNjIyMDAwMDAwWhcNMzYwNjIyMDAw\n"
"MDAwWjBHMQswCQYDVQQGEwJVUzEiMCAGA1UEChMZR29vZ2xlIFRydXN0IFNlcnZp\n"
"Y2VzIExMQzEUMBIGA1UEAxMLR1RTIFJvb3QgUjMwdjAQBgcqhkjOPQIBBgUrgQQA\n"
"IgNiAAQfTzOHMymKoYTey8chWEGJ6ladK0uFxh1MJ7x/JlFyb+Kf1qPKzEUURout\n"
"736GjOyxfi//qXGdGIRFBEFVbivqJn+7kAHjSxm65FSWRQmx1WyRRK2EE46ajA2A\n"
"DDL24CejQjBAMA4GA1UdDwEB/wQEAwIBBjAPBgNVHRMBAf8EBTADAQH/MB0GA1Ud\n"
"DgQWBBTB8Sa6oC2uhYHP0/EqEr24Cmf9vDAKBggqhkjOPQQDAwNpADBmAjEAgFuk\n"
"fCPAlaUs3L6JbyO5o91lAFJekazInXJ0glMLfalAvWhgxeG4VDvBNhcl2MG9AjEA\n"
"njWSdIUlUfUk7GRSJFClH9voy8l27OyCbvWFGFPouOOaKaqW04MjyaR7YbPMAuhd\n"
"-----END CERTIFICATE-----";
static const char pem4[] = "-----BEGIN CERTIFICATE-----\n"
"MIICCjCCAZGgAwIBAgIQbkepyIuUtui7OyrYorLBmTAKBggqhkjOPQQDAzBHMQsw\n"
"CQYDVQQGEwJVUzEiMCAGA1UEChMZR29vZ2xlIFRydXN0IFNlcnZpY2VzIExMQzEU\n"
"MBIGA1UEAxMLR1RTIFJvb3QgUjQwHhcNMTYwNjIyMDAwMDAwWhcNMzYwNjIyMDAw\n"
"MDAwWjBHMQswCQYDVQQGEwJVUzEiMCAGA1UEChMZR29vZ2xlIFRydXN0IFNlcnZp\n"
"Y2VzIExMQzEUMBIGA1UEAxMLR1RTIFJvb3QgUjQwdjAQBgcqhkjOPQIBBgUrgQQA\n"
"IgNiAATzdHOnaItgrkO4NcWBMHtLSZ37wWHO5t5GvWvVYRg1rkDdc/eJkTBa6zzu\n"
"hXyiQHY7qca4R9gq55KRanPpsXI5nymfopjTX15YhmUPoYRlBtHci8nHc8iMai/l\n"
"xKvRHYqjQjBAMA4GA1UdDwEB/wQEAwIBBjAPBgNVHRMBAf8EBTADAQH/MB0GA1Ud\n"
"DgQWBBSATNbrdP9JNqPV2Py1PsVq8JQdjDAKBggqhkjOPQQDAwNnADBkAjBqUFJ0\n"
"CMRw3J5QdCHojXohw0+WbhXRIjVhLfoIN+4Zba3bssx9BzT1YBkstTTZbyACMANx\n"
"sbqjYAuG7ZoIapVon+Kz4ZNkfF6Tpt95LY2F45TPI11xzPKwTdb+mciUqXWi4w==\n"
"-----END CERTIFICATE-----";
static int prepare(const char* currentFileV2)
{
int rc = -1;
const char* hosts[] = { "#somecomment\r\n"
"someurl 3389 ff:11:22:dd subject issuer\r\n"
"someurl 3389 ff:11:22:dd c3ViamVjdA== aXNzdWVy\r\n"
" \t#anothercomment\r\n"
"otherurl\t3389\taa:bb:cc:dd\tsubject2\tissuer2\r" };
FILE* fc = NULL;
@ -52,21 +145,19 @@ finish:
return rc;
}
int TestKnownHosts(int argc, char* argv[])
static BOOL setup_config(rdpSettings** settings)
{
int rc = -1;
rdpSettings current;
rdpCertificateData* data = NULL;
rdpCertificateStore* store = NULL;
char* currentFileV2 = NULL;
char* subject = NULL;
char* issuer = NULL;
char* fp = NULL;
BOOL rc = FALSE;
char* path = NULL;
char sname[8192];
SYSTEMTIME systemTime;
WINPR_UNUSED(argc);
WINPR_UNUSED(argv);
if (!settings)
goto fail;
*settings = freerdp_settings_new(0);
if (!*settings)
goto fail;
GetSystemTime(&systemTime);
sprintf_s(sname, sizeof(sname),
"TestKnownHostsCurrent-%04" PRIu16 "%02" PRIu16 "%02" PRIu16 "%02" PRIu16 "%02" PRIu16
@ -74,18 +165,237 @@ int TestKnownHosts(int argc, char* argv[])
systemTime.wYear, systemTime.wMonth, systemTime.wDay, systemTime.wHour,
systemTime.wMinute, systemTime.wSecond, systemTime.wMilliseconds);
current.ConfigPath = GetKnownSubPath(KNOWN_PATH_TEMP, sname);
path = GetKnownSubPath(KNOWN_PATH_TEMP, sname);
if (!path)
goto fail;
if (!PathFileExistsA(path))
{
if (!CreateDirectoryA(path, NULL))
{
fprintf(stderr, "Could not create %s!\n", path);
goto fail;
}
}
if (!PathFileExistsA(current.ConfigPath))
rc = freerdp_settings_set_string(*settings, FreeRDP_ConfigPath, path);
fail:
free(path);
return rc;
}
/* Test if host is found in current file. */
static BOOL test_known_hosts_host_found(rdpCertificateStore* store)
{
BOOL rc = FALSE;
rdpCertificateData* stored_data = NULL;
rdpCertificateData* data;
printf("%s\n", __FUNCTION__);
data = certificate_data_new("someurl", 3389);
if (!data)
{
if (!CreateDirectoryA(current.ConfigPath, NULL))
{
fprintf(stderr, "Could not create %s!\n", current.ConfigPath);
fprintf(stderr, "Could not create certificate data!\n");
goto finish;
}
if (!certificate_data_set_subject(data, "subject") ||
!certificate_data_set_issuer(data, "issuer") ||
!certificate_data_set_fingerprint(data, "ff:11:22:dd"))
goto finish;
if (0 != certificate_store_contains_data(store, data))
{
fprintf(stderr, "Could not find data in v2 file!\n");
goto finish;
}
currentFileV2 = GetCombinedPath(current.ConfigPath, "known_hosts2");
/* Test if we can read out the old fingerprint. */
stored_data = certificate_store_load_data(store, certificate_data_get_host(data),
certificate_data_get_port(data));
if (!stored_data)
{
fprintf(stderr, "Could not read old fingerprint!\n");
goto finish;
}
printf("Got %s, %s '%s'\n", certificate_data_get_subject(stored_data),
certificate_data_get_issuer(stored_data), certificate_data_get_fingerprint(stored_data));
rc = TRUE;
finish:
printf("certificate_data_free %d\n", rc);
certificate_data_free(data);
certificate_data_free(stored_data);
return rc;
}
/* Test if host not found in current file. */
static BOOL test_known_hosts_host_not_found(rdpCertificateStore* store)
{
BOOL rc = FALSE;
rdpCertificateData* stored_data = NULL;
rdpCertificateData* data;
printf("%s\n", __FUNCTION__);
data = certificate_data_new("somehost", 1234);
if (!data)
{
fprintf(stderr, "Could not create certificate data!\n");
goto finish;
}
if (!certificate_data_set_fingerprint(data, "ff:aa:bb:cc"))
goto finish;
if (0 == certificate_store_contains_data(store, data))
{
fprintf(stderr, "Invalid host found in v2 file!\n");
goto finish;
}
/* Test if we read out the old fingerprint fails. */
stored_data = certificate_store_load_data(store, certificate_data_get_host(data),
certificate_data_get_port(data));
if (stored_data)
{
fprintf(stderr, "Read out not existing old fingerprint succeeded?!\n");
goto finish;
}
rc = TRUE;
finish:
printf("certificate_data_free %d\n", rc);
certificate_data_free(data);
certificate_data_free(stored_data);
return rc;
}
/* Test host add current file. */
static BOOL test_known_hosts_host_add(rdpCertificateStore* store)
{
BOOL rc = FALSE;
rdpCertificateData* data;
printf("%s\n", __FUNCTION__);
data = certificate_data_new("somehost", 1234);
if (!data)
{
fprintf(stderr, "Could not create certificate data!\n");
goto finish;
}
if (!certificate_data_set_subject(data, "ff:aa:bb:cc") ||
!certificate_data_set_issuer(data, "ff:aa:bb:cc") ||
!certificate_data_set_fingerprint(data, "ff:aa:bb:cc"))
goto finish;
if (!certificate_store_save_data(store, data))
{
fprintf(stderr, "Could not add host to file!\n");
goto finish;
}
if (0 != certificate_store_contains_data(store, data))
{
fprintf(stderr, "Could not find host written in v2 file!\n");
goto finish;
}
rc = TRUE;
finish:
printf("certificate_data_free %d\n", rc);
certificate_data_free(data);
return rc;
}
/* Test host replace current file. */
static BOOL test_known_hosts_host_replace(rdpCertificateStore* store)
{
BOOL rc = FALSE;
rdpCertificateData* data;
printf("%s\n", __FUNCTION__);
data = certificate_data_new("somehost", 1234);
if (!data)
{
fprintf(stderr, "Could not create certificate data!\n");
goto finish;
}
if (!certificate_data_set_subject(data, "ff:aa:xx:cc") ||
!certificate_data_set_issuer(data, "ff:aa:bb:ee") ||
!certificate_data_set_fingerprint(data, "ff:aa:bb:dd:ee"))
goto finish;
if (!certificate_store_save_data(store, data))
{
fprintf(stderr, "Could not replace data!\n");
goto finish;
}
if (0 != certificate_store_contains_data(store, data))
{
fprintf(stderr, "Invalid host found in v2 file!\n");
goto finish;
}
rc = TRUE;
finish:
printf("certificate_data_free %d\n", rc);
certificate_data_free(data);
return rc;
}
/* Test host replace invalid entry in current file. */
static BOOL test_known_hosts_host_replace_invalid(rdpCertificateStore* store)
{
BOOL rc = FALSE;
rdpCertificateData* data;
printf("%s\n", __FUNCTION__);
data = certificate_data_new("somehostXXXX", 1234);
if (!data)
{
fprintf(stderr, "Could not create certificate data!\n");
goto finish;
}
if (!certificate_data_set_fingerprint(data, "ff:aa:bb:dd:ee"))
goto finish;
if (certificate_store_save_data(store, data))
{
fprintf(stderr, "Invalid return for replace invalid entry!\n");
goto finish;
}
if (0 == certificate_store_contains_data(store, data))
{
fprintf(stderr, "Invalid host found in v2 file!\n");
goto finish;
}
rc = TRUE;
finish:
printf("certificate_data_free %d\n", rc);
certificate_data_free(data);
return rc;
}
static BOOL test_known_hosts_file(void)
{
BOOL rc = FALSE;
rdpSettings* settings = NULL;
rdpCertificateStore* store = NULL;
char* currentFileV2 = NULL;
printf("%s", __FUNCTION__);
if (!setup_config(&settings))
goto finish;
if (!freerdp_settings_set_bool(settings, FreeRDP_CertificateUseKnownHosts, TRUE))
goto finish;
currentFileV2 =
GetCombinedPath(freerdp_settings_get_string(settings, FreeRDP_ConfigPath), "known_hosts2");
if (!currentFileV2)
{
@ -93,7 +403,8 @@ int TestKnownHosts(int argc, char* argv[])
goto finish;
}
store = certificate_store_new(&current);
printf("certificate_store_new\n");
store = certificate_store_new(settings);
if (!store)
{
@ -104,139 +415,276 @@ int TestKnownHosts(int argc, char* argv[])
if (prepare(currentFileV2))
goto finish;
/* Test if host is found in current file. */
data = certificate_data_new("someurl", 3389, "subject", "issuer", "ff:11:22:dd");
if (!data)
{
fprintf(stderr, "Could not create certificate data!\n");
if (!test_known_hosts_host_found(store))
goto finish;
}
if (0 != certificate_data_match(store, data))
{
fprintf(stderr, "Could not find data in v2 file!\n");
if (!test_known_hosts_host_not_found(store))
goto finish;
}
/* Test if we can read out the old fingerprint. */
if (!certificate_get_stored_data(store, data, &subject, &issuer, &fp))
{
fprintf(stderr, "Could not read old fingerprint!\n");
if (!test_known_hosts_host_add(store))
goto finish;
}
printf("Got %s, %s '%s'\n", subject, issuer, fp);
free(subject);
free(issuer);
free(fp);
subject = NULL;
issuer = NULL;
fp = NULL;
certificate_data_free(data);
/* Test if host not found in current file. */
data = certificate_data_new("somehost", 1234, "", "", "ff:aa:bb:cc");
if (!data)
{
fprintf(stderr, "Could not create certificate data!\n");
if (!test_known_hosts_host_replace(store))
goto finish;
}
if (0 == certificate_data_match(store, data))
{
fprintf(stderr, "Invalid host found in v2 file!\n");
if (!test_known_hosts_host_replace_invalid(store))
goto finish;
}
/* Test if we read out the old fingerprint fails. */
if (certificate_get_stored_data(store, data, &subject, &issuer, &fp))
{
fprintf(stderr, "Read out not existing old fingerprint succeeded?!\n");
goto finish;
}
certificate_data_free(data);
/* Test host add current file. */
data = certificate_data_new("somehost", 1234, "", "", "ff:aa:bb:cc");
if (!data)
{
fprintf(stderr, "Could not create certificate data!\n");
goto finish;
}
if (!certificate_data_print(store, data))
{
fprintf(stderr, "Could not add host to file!\n");
goto finish;
}
if (0 != certificate_data_match(store, data))
{
fprintf(stderr, "Could not find host written in v2 file!\n");
goto finish;
}
certificate_data_free(data);
/* Test host replace current file. */
data = certificate_data_new("somehost", 1234, "", "", "ff:aa:bb:dd:ee");
if (!data)
{
fprintf(stderr, "Could not create certificate data!\n");
goto finish;
}
if (!certificate_data_replace(store, data))
{
fprintf(stderr, "Could not replace data!\n");
goto finish;
}
if (0 != certificate_data_match(store, data))
{
fprintf(stderr, "Invalid host found in v2 file!\n");
goto finish;
}
certificate_data_free(data);
/* Test host replace invalid entry in current file. */
data = certificate_data_new("somehostXXXX", 1234, "", "", "ff:aa:bb:dd:ee");
if (!data)
{
fprintf(stderr, "Could not create certificate data!\n");
goto finish;
}
if (certificate_data_replace(store, data))
{
fprintf(stderr, "Invalid return for replace invalid entry!\n");
goto finish;
}
if (0 == certificate_data_match(store, data))
{
fprintf(stderr, "Invalid host found in v2 file!\n");
goto finish;
}
rc = 0;
rc = TRUE;
finish:
free(current.ConfigPath);
freerdp_settings_free(settings);
if (store)
printf("certificate_store_free\n");
certificate_store_free(store);
if (data)
certificate_data_free(data);
DeleteFileA(currentFileV2);
// RemoveDirectoryA(current.ConfigPath);
free(currentFileV2);
free(subject);
free(issuer);
free(fp);
return rc;
}
static BOOL equal(const char* a, const char* b)
{
if (!a && !b)
return TRUE;
if (!a || !b)
return FALSE;
return strcmp(a, b) == 0;
}
static BOOL compare(const rdpCertificateData* data, const rdpCertificateData* stored)
{
if (!data || !stored)
return FALSE;
if (!equal(certificate_data_get_subject(data), certificate_data_get_subject(stored)))
return FALSE;
if (!equal(certificate_data_get_issuer(data), certificate_data_get_issuer(stored)))
return FALSE;
if (!equal(certificate_data_get_fingerprint(data), certificate_data_get_fingerprint(stored)))
return FALSE;
return TRUE;
}
static BOOL pem_equal(const char* a, const char* b)
{
BOOL rc = FALSE;
size_t sa = strlen(a);
size_t sb = strlen(b);
X509* x1 = crypto_cert_from_pem(a, sa, FALSE);
X509* x2 = crypto_cert_from_pem(b, sb, FALSE);
char* f1 = NULL;
char* f2 = NULL;
if (!x1 || !x2)
goto fail;
f1 = crypto_cert_fingerprint(x1);
f2 = crypto_cert_fingerprint(x1);
if (!f1 || !f2)
goto fail;
rc = strcmp(f1, f2) == 0;
fail:
free(f1);
free(f2);
X509_free(x1);
X509_free(x2);
return rc;
}
static BOOL compare_ex(const rdpCertificateData* data, const rdpCertificateData* stored)
{
if (!compare(data, stored))
return FALSE;
if (!pem_equal(certificate_data_get_pem(data), certificate_data_get_pem(stored)))
return FALSE;
return TRUE;
}
static BOOL test_get_data(rdpCertificateStore* store, const rdpCertificateData* data)
{
BOOL res;
rdpCertificateData* stored = certificate_store_load_data(store, certificate_data_get_host(data),
certificate_data_get_port(data));
if (!stored)
return FALSE;
res = compare(data, stored);
certificate_data_free(stored);
return res;
}
static BOOL test_get_data_ex(rdpCertificateStore* store, const rdpCertificateData* data)
{
BOOL res;
rdpCertificateData* stored = certificate_store_load_data(store, certificate_data_get_host(data),
certificate_data_get_port(data));
if (!stored)
return FALSE;
res = compare_ex(data, stored);
certificate_data_free(stored);
return res;
}
static BOOL test_certs_dir(BOOL useHostsFile)
{
BOOL rc = FALSE;
rdpSettings* settings = NULL;
rdpCertificateStore* store = NULL;
rdpCertificateData* data1 = NULL;
rdpCertificateData* data2 = NULL;
rdpCertificateData* data3 = NULL;
rdpCertificateData* data4 = NULL;
printf("%s %d\n", __FUNCTION__, useHostsFile);
if (!setup_config(&settings))
goto fail;
/* Initialize certificate folder backend */
if (!freerdp_settings_set_bool(settings, FreeRDP_CertificateUseKnownHosts, useHostsFile))
goto fail;
printf("certificate_store_new()\n");
store = certificate_store_new(settings);
if (!store)
goto fail;
{
printf("certificate_data_new()\n");
data1 = certificate_data_new("somehost", 1234);
data2 = certificate_data_new("otherhost", 4321);
data3 = certificate_data_new("otherhost4", 444);
data4 = certificate_data_new("otherhost", 4321);
if (!data1 || !data2 || !data3 || !data4)
goto fail;
printf("certificate_data_set_pem(1 [%" PRIuz "])\n", strlen(pem1));
if (!certificate_data_set_pem(data1, pem1))
goto fail;
printf("certificate_data_set_pem(2 [%" PRIuz "])\n", strlen(pem2));
if (!certificate_data_set_pem(data2, pem2))
goto fail;
printf("certificate_data_set_pem(3 [%" PRIuz "])\n", strlen(pem3));
if (!certificate_data_set_pem(data3, pem3))
goto fail;
printf("certificate_data_set_pem(4 [%" PRIuz "])\n", strlen(pem4));
if (!certificate_data_set_pem(data4, pem4))
goto fail;
/* Find non existing in empty store */
printf("certificate_store_load_data on empty store\n");
if (test_get_data(store, data1))
goto fail;
if (test_get_data_ex(store, data1))
goto fail;
if (test_get_data(store, data2))
goto fail;
if (test_get_data_ex(store, data2))
goto fail;
if (test_get_data(store, data3))
goto fail;
if (test_get_data_ex(store, data3))
goto fail;
/* Add certificates */
printf("certificate_store_save_data\n");
if (!certificate_store_save_data(store, data1))
goto fail;
if (!certificate_store_save_data(store, data2))
goto fail;
/* Find non existing in non empty store */
printf("certificate_store_load_data on filled store, non existing value\n");
if (test_get_data(store, data3))
goto fail;
if (test_get_data_ex(store, data3))
goto fail;
/* Add remaining certs */
printf("certificate_store_save_data\n");
if (!certificate_store_save_data(store, data3))
goto fail;
/* Check existing can all be found */
printf("certificate_store_load_data on filled store, existing value\n");
if (!test_get_data(store, data1))
goto fail;
if (!test_get_data_ex(store, data1))
goto fail;
if (!test_get_data(store, data2))
goto fail;
if (!test_get_data_ex(store, data2))
goto fail;
if (!test_get_data(store, data3))
goto fail;
if (!test_get_data_ex(store, data3))
goto fail;
/* Modify existing entry */
printf("certificate_store_save_data modify data\n");
if (!certificate_store_save_data(store, data4))
goto fail;
/* Check new data is in store */
printf("certificate_store_load_data check modified data can be loaded\n");
if (!test_get_data(store, data4))
goto fail;
if (!test_get_data_ex(store, data4))
goto fail;
/* Check old data is no longer valid */
printf("certificate_store_load_data check original data no longer there\n");
if (test_get_data(store, data2))
goto fail;
if (test_get_data_ex(store, data2))
goto fail;
/* Delete a cert */
printf("certificate_store_remove_data\n");
if (!certificate_store_remove_data(store, data3))
goto fail;
/* Delete non existing, should succeed */
printf("certificate_store_remove_data missing value\n");
if (!certificate_store_remove_data(store, data3))
goto fail;
printf("certificate_store_load_data on filled store, existing value\n");
if (!test_get_data(store, data1))
goto fail;
if (!test_get_data_ex(store, data1))
goto fail;
if (!test_get_data(store, data4))
goto fail;
if (!test_get_data_ex(store, data4))
goto fail;
printf("certificate_store_load_data on filled store, removed value\n");
if (test_get_data(store, data3))
goto fail;
if (test_get_data_ex(store, data3))
goto fail;
}
rc = TRUE;
fail:
printf("certificate_data_free %d\n", rc);
certificate_data_free(data1);
certificate_data_free(data2);
certificate_data_free(data3);
certificate_data_free(data4);
certificate_store_free(store);
freerdp_settings_free(settings);
return rc;
}
int TestKnownHosts(int argc, char* argv[])
{
WINPR_UNUSED(argc);
WINPR_UNUSED(argv);
if (!test_known_hosts_file())
return -1;
if (!test_certs_dir(FALSE))
return -1;
if (!test_certs_dir(TRUE))
return -1;
return 0;
}

251
libfreerdp/crypto/tls.c
View File

@ -970,34 +970,17 @@ BOOL tls_accept(rdpTls* tls, BIO* underlying, rdpSettings* settings)
}
if (settings->CertificateFile)
{
bio = BIO_new_file(settings->CertificateFile, "rb");
if (!bio)
{
WLog_ERR(TAG, "BIO_new_file failed for certificate %s", settings->CertificateFile);
return FALSE;
}
}
x509 = crypto_cert_from_pem(settings->CertificateFile, strlen(settings->CertificateFile),
TRUE);
else if (settings->CertificateContent)
{
bio = BIO_new_mem_buf(settings->CertificateContent, strlen(settings->CertificateContent));
if (!bio)
{
WLog_ERR(TAG, "BIO_new_mem_buf failed for certificate");
return FALSE;
}
}
x509 = crypto_cert_from_pem(settings->CertificateContent,
strlen(settings->CertificateContent), FALSE);
else
{
WLog_ERR(TAG, "no certificate defined");
return FALSE;
}
x509 = PEM_read_bio_X509(bio, NULL, NULL, 0);
BIO_free_all(bio);
if (!x509)
{
WLog_ERR(TAG, "invalid certificate");
@ -1260,120 +1243,19 @@ static BOOL accept_cert(rdpTls* tls, const BYTE* pem, UINT32 length)
return TRUE;
}
static BOOL tls_extract_pem(CryptoCert cert, BYTE** PublicKey, DWORD* PublicKeyLength)
static BOOL tls_extract_pem(CryptoCert cert, BYTE** PublicKey, size_t* PublicKeyLength)
{
BIO* bio;
int status, count, x;
size_t offset;
size_t length = 0;
BOOL rc = FALSE;
BYTE* pemCert = NULL;
if (!PublicKey || !PublicKeyLength)
if (!cert || !PublicKey)
return FALSE;
*PublicKey = NULL;
*PublicKeyLength = 0;
/**
* Don't manage certificates internally, leave it up entirely to the external client
* implementation
*/
bio = BIO_new(BIO_s_mem());
if (!bio)
{
WLog_ERR(TAG, "BIO_new() failure");
return FALSE;
}
status = PEM_write_bio_X509(bio, cert->px509);
if (status < 0)
{
WLog_ERR(TAG, "PEM_write_bio_X509 failure: %d", status);
goto fail;
}
if (cert->px509chain)
{
count = sk_X509_num(cert->px509chain);
for (x = 0; x < count; x++)
{
X509* c = sk_X509_value(cert->px509chain, x);
status = PEM_write_bio_X509(bio, c);
if (status < 0)
{
WLog_ERR(TAG, "PEM_write_bio_X509 failure: %d", status);
goto fail;
}
}
}
offset = 0;
length = 2048;
pemCert = (BYTE*)malloc(length + 1);
if (!pemCert)
{
WLog_ERR(TAG, "error allocating pemCert");
goto fail;
}
status = BIO_read(bio, pemCert, length);
if (status < 0)
{
WLog_ERR(TAG, "failed to read certificate");
goto fail;
}
offset += (size_t)status;
while (offset >= length)
{
int new_len;
BYTE* new_cert;
new_len = length * 2;
new_cert = (BYTE*)realloc(pemCert, new_len + 1);
if (!new_cert)
goto fail;
length = new_len;
pemCert = new_cert;
status = BIO_read(bio, &pemCert[offset], length - offset);
if (status < 0)
break;
offset += status;
}
if (status < 0)
{
WLog_ERR(TAG, "failed to read certificate");
goto fail;
}
length = offset;
pemCert[length] = '\0';
*PublicKey = pemCert;
*PublicKeyLength = length;
rc = TRUE;
fail:
if (!rc)
free(pemCert);
BIO_free_all(bio);
return rc;
*PublicKey = crypto_cert_pem(cert->px509, cert->px509chain, PublicKeyLength);
return *PublicKey != NULL;
}
int tls_verify_certificate(rdpTls* tls, CryptoCert cert, const char* hostname, UINT16 port)
{
int match;
int index;
DWORD length;
size_t length;
BOOL certificate_status;
char* common_name = NULL;
int common_name_length = 0;
@ -1445,7 +1327,8 @@ int tls_verify_certificate(rdpTls* tls, CryptoCert cert, const char* hostname, U
hostname = tls->settings->CertificateName;
/* attempt verification using OpenSSL and the ~/.freerdp/certs certificate store */
certificate_status = x509_verify_certificate(cert, tls->certificate_store->path);
certificate_status =
x509_verify_certificate(cert, certificate_store_get_certs_path(tls->certificate_store));
/* verify certificate name match */
certificate_data = crypto_get_certificate_data(cert->px509, hostname, port);
/* extra common name and alternative names */
@ -1486,31 +1369,17 @@ int tls_verify_certificate(rdpTls* tls, CryptoCert cert, const char* hostname, U
* manual verification */
if (!certificate_status || !hostname_match)
{
char* issuer;
char* subject;
char* fingerprint;
DWORD accept_certificate = 0;
issuer = crypto_cert_issuer(cert->px509);
subject = crypto_cert_subject(cert->px509);
fingerprint = crypto_cert_fingerprint(cert->px509);
size_t length = 0;
char* issuer = crypto_cert_issuer(cert->px509);
char* subject = crypto_cert_subject(cert->px509);
char* pem = crypto_cert_pem(cert->px509, NULL, &length);
if (!pem)
goto end;
/* search for matching entry in known_hosts file */
match = certificate_data_match(tls->certificate_store, certificate_data);
{
int match_old = -1;
char* sha1 = crypto_cert_fingerprint_by_hash(cert->px509, "sha1");
rdpCertificateData* certificate_data_sha1 =
certificate_data_new(hostname, port, subject, issuer, sha1);
if (sha1 && certificate_data_sha1)
match_old =
certificate_data_match(tls->certificate_store, certificate_data_sha1);
if (match_old == 0)
flags |= VERIFY_CERT_FLAG_MATCH_LEGACY_SHA1;
certificate_data_free(certificate_data_sha1);
free(sha1);
}
match = certificate_store_contains_data(tls->certificate_store, certificate_data);
if (match == 1)
{
@ -1545,29 +1414,42 @@ int tls_verify_certificate(rdpTls* tls, CryptoCert cert, const char* hostname, U
}
else if (instance->VerifyCertificateEx)
{
const BOOL use_pem = freerdp_settings_get_bool(
instance->settings, FreeRDP_CertificateCallbackPreferPEM);
char* fp = NULL;
DWORD cflags = flags;
if (use_pem)
{
cflags |= VERIFY_CERT_FLAG_FP_IS_PEM;
fp = pem;
}
else
fp = crypto_cert_fingerprint(cert->px509);
accept_certificate = instance->VerifyCertificateEx(
instance, hostname, port, common_name, subject, issuer, fingerprint, flags);
instance, hostname, port, common_name, subject, issuer, fp, cflags);
if (!use_pem)
free(fp);
}
else if (instance->VerifyCertificate)
{
char* fp = crypto_cert_fingerprint(cert->px509);
WLog_WARN(TAG, "The VerifyCertificate callback is deprecated, migrate your "
"application to VerifyCertificateEx");
accept_certificate = instance->VerifyCertificate(
instance, common_name, subject, issuer, fingerprint, !hostname_match);
accept_certificate = instance->VerifyCertificate(instance, common_name, subject,
issuer, fp, !hostname_match);
free(fp);
}
}
else if (match == -1)
{
char* old_subject = NULL;
char* old_issuer = NULL;
char* old_fingerprint = NULL;
rdpCertificateData* stored_data =
certificate_store_load_data(tls->certificate_store, hostname, port);
/* entry was found in known_hosts file, but fingerprint does not match. ask user
* to use it */
tls_print_certificate_error(hostname, port, fingerprint,
tls->certificate_store->file);
tls_print_certificate_error(
hostname, port, pem, certificate_store_get_hosts_file(tls->certificate_store));
if (!certificate_get_stored_data(tls->certificate_store, certificate_data,
&old_subject, &old_issuer, &old_fingerprint))
if (!stored_data)
WLog_WARN(TAG, "Failed to get certificate entry for %s:%d", hostname, port);
if (tls->settings->AutoDenyCertificate)
@ -1590,22 +1472,45 @@ int tls_verify_certificate(rdpTls* tls, CryptoCert cert, const char* hostname, U
}
else if (instance->VerifyChangedCertificateEx)
{
DWORD cflags = flags | VERIFY_CERT_FLAG_CHANGED;
const char* old_subject = certificate_data_get_subject(stored_data);
const char* old_issuer = certificate_data_get_issuer(stored_data);
const char* old_fp = certificate_data_get_fingerprint(stored_data);
const char* old_pem = certificate_data_get_pem(stored_data);
char* fp;
if (old_pem && freerdp_settings_get_bool(instance->settings,
FreeRDP_CertificateCallbackPreferPEM))
{
cflags |= VERIFY_CERT_FLAG_FP_IS_PEM;
fp = pem;
old_fp = old_pem;
}
else
{
fp = crypto_cert_fingerprint(cert->px509);
}
accept_certificate = instance->VerifyChangedCertificateEx(
instance, hostname, port, common_name, subject, issuer, fingerprint,
old_subject, old_issuer, old_fingerprint, flags | VERIFY_CERT_FLAG_CHANGED);
instance, hostname, port, common_name, subject, issuer, pem, old_subject,
old_issuer, old_fp, cflags);
if (!old_pem)
free(fp);
}
else if (instance->VerifyChangedCertificate)
{
char* fp = crypto_cert_fingerprint(cert->px509);
const char* old_subject = certificate_data_get_subject(stored_data);
const char* old_issuer = certificate_data_get_issuer(stored_data);
const char* old_fingerprint = certificate_data_get_fingerprint(stored_data);
WLog_WARN(TAG, "The VerifyChangedCertificate callback is deprecated, migrate "
"your application to VerifyChangedCertificateEx");
accept_certificate = instance->VerifyChangedCertificate(
instance, common_name, subject, issuer, fingerprint, old_subject,
old_issuer, old_fingerprint);
instance, common_name, subject, issuer, fp, old_subject, old_issuer,
old_fingerprint);
free(fp);
}
free(old_subject);
free(old_issuer);
free(old_fingerprint);
certificate_data_free(stored_data);
}
else if (match == 0)
accept_certificate = 2; /* success! */
@ -1616,15 +1521,9 @@ int tls_verify_certificate(rdpTls* tls, CryptoCert cert, const char* hostname, U
case 1:
/* user accepted certificate, add entry in known_hosts file */
if (match < 0)
verification_status =
certificate_data_replace(tls->certificate_store, certificate_data) ? 1
certificate_store_save_data(tls->certificate_store, certificate_data) ? 1
: -1;
else
verification_status =
certificate_data_print(tls->certificate_store, certificate_data) ? 1
: -1;
break;
case 2:
@ -1640,7 +1539,7 @@ int tls_verify_certificate(rdpTls* tls, CryptoCert cert, const char* hostname, U
free(issuer);
free(subject);
free(fingerprint);
free(pem);
}
if (verification_status > 0)

2
winpr/libwinpr/path/shell.c
View File

@ -550,7 +550,7 @@ BOOL PathMakePathW(LPCWSTR path, LPSECURITY_ATTRIBUTES lpAttributes)
#endif
if (ConvertFromUnicode(CP_UTF8, 0, path, -1, &dup, 0, NULL, NULL))
if (ConvertFromUnicode(CP_UTF8, 0, path, -1, &dup, 0, NULL, NULL) <= 0)
return FALSE;
#ifdef __OS2__