Java example source code file (NativeCreds.c)
The NativeCreds.c Java example source code
/*
* Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* ===========================================================================
* (C) Copyright IBM Corp. 2000 All Rights Reserved.
* ===========================================================================
*/
#define UNICODE
#define _UNICODE
#include <windows.h>
#include <stdio.h>
#include <string.h>
#define SECURITY_WIN32
#include <security.h>
#include <ntsecapi.h>
#include <dsgetdc.h>
#include <lmcons.h>
#include <lmapibuf.h>
#include <jni.h>
#include <winsock.h>
#undef LSA_SUCCESS
#define LSA_SUCCESS(Status) ((Status) >= 0)
#define EXIT_FAILURE -1 // mdu
/*
* Library-wide static references
*/
jclass derValueClass = NULL;
jclass ticketClass = NULL;
jclass principalNameClass = NULL;
jclass encryptionKeyClass = NULL;
jclass ticketFlagsClass = NULL;
jclass kerberosTimeClass = NULL;
jclass javaLangStringClass = NULL;
jmethodID derValueConstructor = 0;
jmethodID ticketConstructor = 0;
jmethodID principalNameConstructor = 0;
jmethodID encryptionKeyConstructor = 0;
jmethodID ticketFlagsConstructor = 0;
jmethodID kerberosTimeConstructor = 0;
jmethodID krbcredsConstructor = 0;
/*
* Function prototypes for internal routines
*
*/
BOOL native_debug = 0;
BOOL PackageConnectLookup(PHANDLE,PULONG);
NTSTATUS ConstructTicketRequest(UNICODE_STRING DomainName,
PKERB_RETRIEVE_TKT_REQUEST *outRequest,
ULONG *outSize);
DWORD ConcatenateUnicodeStrings(UNICODE_STRING *pTarget,
UNICODE_STRING Source1,
UNICODE_STRING Source2);
VOID ShowNTError(LPSTR,NTSTATUS);
VOID
InitUnicodeString(
PUNICODE_STRING DestinationString,
PCWSTR SourceString OPTIONAL
);
jobject BuildTicket(JNIEnv *env, PUCHAR encodedTicket, ULONG encodedTicketSize);
//mdu
jobject BuildPrincipal(JNIEnv *env, PKERB_EXTERNAL_NAME principalName,
UNICODE_STRING domainName);
jobject BuildEncryptionKey(JNIEnv *env, PKERB_CRYPTO_KEY cryptoKey);
jobject BuildTicketFlags(JNIEnv *env, PULONG flags);
jobject BuildKerberosTime(JNIEnv *env, PLARGE_INTEGER kerbtime);
/*
* Class: sun_security_krb5_KrbCreds
* Method: JNI_OnLoad
*/
JNIEXPORT jint JNICALL JNI_OnLoad(
JavaVM *jvm,
void *reserved) {
jclass cls;
JNIEnv *env;
jfieldID fldDEBUG;
if ((*jvm)->GetEnv(jvm, (void **)&env, JNI_VERSION_1_2)) {
return JNI_EVERSION; /* JNI version not supported */
}
cls = (*env)->FindClass(env,"sun/security/krb5/internal/Krb5");
if (cls == NULL) {
printf("LSA: Couldn't find Krb5\n");
return JNI_ERR;
}
fldDEBUG = (*env)->GetStaticFieldID(env, cls, "DEBUG", "Z");
if (fldDEBUG == NULL) {
printf("LSA: Krb5 has no DEBUG field\n");
return JNI_ERR;
}
native_debug = (*env)->GetStaticBooleanField(env, cls, fldDEBUG);
cls = (*env)->FindClass(env,"sun/security/krb5/internal/Ticket");
if (cls == NULL) {
printf("LSA: Couldn't find Ticket\n");
return JNI_ERR;
}
if (native_debug) {
printf("LSA: Found Ticket\n");
}
ticketClass = (*env)->NewWeakGlobalRef(env,cls);
if (ticketClass == NULL) {
return JNI_ERR;
}
if (native_debug) {
printf("LSA: Made NewWeakGlobalRef\n");
}
cls = (*env)->FindClass(env, "sun/security/krb5/PrincipalName");
if (cls == NULL) {
printf("LSA: Couldn't find PrincipalName\n");
return JNI_ERR;
}
if (native_debug) {
printf("LSA: Found PrincipalName\n");
}
principalNameClass = (*env)->NewWeakGlobalRef(env,cls);
if (principalNameClass == NULL) {
return JNI_ERR;
}
if (native_debug) {
printf("LSA: Made NewWeakGlobalRef\n");
}
cls = (*env)->FindClass(env,"sun/security/util/DerValue");
if (cls == NULL) {
printf("LSA: Couldn't find DerValue\n");
return JNI_ERR;
}
if (native_debug) {
printf("LSA: Found DerValue\n");
}
derValueClass = (*env)->NewWeakGlobalRef(env,cls);
if (derValueClass == NULL) {
return JNI_ERR;
}
if (native_debug) {
printf("LSA: Made NewWeakGlobalRef\n");
}
cls = (*env)->FindClass(env,"sun/security/krb5/EncryptionKey");
if (cls == NULL) {
printf("LSA: Couldn't find EncryptionKey\n");
return JNI_ERR;
}
if (native_debug) {
printf("LSA: Found EncryptionKey\n");
}
encryptionKeyClass = (*env)->NewWeakGlobalRef(env,cls);
if (encryptionKeyClass == NULL) {
return JNI_ERR;
}
if (native_debug) {
printf("LSA: Made NewWeakGlobalRef\n");
}
cls = (*env)->FindClass(env,"sun/security/krb5/internal/TicketFlags");
if (cls == NULL) {
printf("LSA: Couldn't find TicketFlags\n");
return JNI_ERR;
}
if (native_debug) {
printf("LSA: Found TicketFlags\n");
}
ticketFlagsClass = (*env)->NewWeakGlobalRef(env,cls);
if (ticketFlagsClass == NULL) {
return JNI_ERR;
}
if (native_debug) {
printf("LSA: Made NewWeakGlobalRef\n");
}
cls = (*env)->FindClass(env,"sun/security/krb5/internal/KerberosTime");
if (cls == NULL) {
printf("LSA: Couldn't find KerberosTime\n");
return JNI_ERR;
}
if (native_debug) {
printf("LSA: Found KerberosTime\n");
}
kerberosTimeClass = (*env)->NewWeakGlobalRef(env,cls);
if (kerberosTimeClass == NULL) {
return JNI_ERR;
}
if (native_debug) {
printf("LSA: Made NewWeakGlobalRef\n");
}
cls = (*env)->FindClass(env,"java/lang/String");
if (cls == NULL) {
printf("LSA: Couldn't find String\n");
return JNI_ERR;
}
if (native_debug) {
printf("LSA: Found String\n");
}
javaLangStringClass = (*env)->NewWeakGlobalRef(env,cls);
if (javaLangStringClass == NULL) {
return JNI_ERR;
}
if (native_debug) {
printf("LSA: Made NewWeakGlobalRef\n");
}
derValueConstructor = (*env)->GetMethodID(env, derValueClass,
"<init>", "([B)V");
if (derValueConstructor == 0) {
printf("LSA: Couldn't find DerValue constructor\n");
return JNI_ERR;
}
if (native_debug) {
printf("LSA: Found DerValue constructor\n");
}
ticketConstructor = (*env)->GetMethodID(env, ticketClass,
"<init>", "(Lsun/security/util/DerValue;)V");
if (ticketConstructor == 0) {
printf("LSA: Couldn't find Ticket constructor\n");
return JNI_ERR;
}
if (native_debug) {
printf("LSA: Found Ticket constructor\n");
}
principalNameConstructor = (*env)->GetMethodID(env, principalNameClass,
"<init>", "([Ljava/lang/String;Ljava/lang/String;)V");
if (principalNameConstructor == 0) {
printf("LSA: Couldn't find PrincipalName constructor\n");
return JNI_ERR;
}
if (native_debug) {
printf("LSA: Found PrincipalName constructor\n");
}
encryptionKeyConstructor = (*env)->GetMethodID(env, encryptionKeyClass,
"<init>", "(I[B)V");
if (encryptionKeyConstructor == 0) {
printf("LSA: Couldn't find EncryptionKey constructor\n");
return JNI_ERR;
}
if (native_debug) {
printf("LSA: Found EncryptionKey constructor\n");
}
ticketFlagsConstructor = (*env)->GetMethodID(env, ticketFlagsClass,
"<init>", "(I[B)V");
if (ticketFlagsConstructor == 0) {
printf("LSA: Couldn't find TicketFlags constructor\n");
return JNI_ERR;
}
if (native_debug) {
printf("LSA: Found TicketFlags constructor\n");
}
kerberosTimeConstructor = (*env)->GetMethodID(env, kerberosTimeClass,
"<init>", "(Ljava/lang/String;)V");
if (kerberosTimeConstructor == 0) {
printf("LSA: Couldn't find KerberosTime constructor\n");
return JNI_ERR;
}
if (native_debug) {
printf("LSA: Found KerberosTime constructor\n");
}
if (native_debug) {
printf("LSA: Finished OnLoad processing\n");
}
return JNI_VERSION_1_2;
}
/*
* Class: sun_security_jgss_KrbCreds
* Method: JNI_OnUnload
*/
JNIEXPORT void JNICALL JNI_OnUnload(
JavaVM *jvm,
void *reserved) {
JNIEnv *env;
if ((*jvm)->GetEnv(jvm, (void **)&env, JNI_VERSION_1_2)) {
return; /* Nothing else we can do */
}
if (ticketClass != NULL) {
(*env)->DeleteWeakGlobalRef(env,ticketClass);
}
if (derValueClass != NULL) {
(*env)->DeleteWeakGlobalRef(env,derValueClass);
}
if (principalNameClass != NULL) {
(*env)->DeleteWeakGlobalRef(env,principalNameClass);
}
if (encryptionKeyClass != NULL) {
(*env)->DeleteWeakGlobalRef(env,encryptionKeyClass);
}
if (ticketFlagsClass != NULL) {
(*env)->DeleteWeakGlobalRef(env,ticketFlagsClass);
}
if (kerberosTimeClass != NULL) {
(*env)->DeleteWeakGlobalRef(env,kerberosTimeClass);
}
if (javaLangStringClass != NULL) {
(*env)->DeleteWeakGlobalRef(env,javaLangStringClass);
}
return;
}
/*
* Class: sun_security_krb5_Credentials
* Method: acquireDefaultNativeCreds
* Signature: ([I])Lsun/security/krb5/Credentials;
*/
JNIEXPORT jobject JNICALL Java_sun_security_krb5_Credentials_acquireDefaultNativeCreds(
JNIEnv *env,
jclass krbcredsClass,
jintArray jetypes) {
KERB_QUERY_TKT_CACHE_REQUEST CacheRequest;
PKERB_RETRIEVE_TKT_RESPONSE TktCacheResponse = NULL;
PKERB_RETRIEVE_TKT_REQUEST pTicketRequest = NULL;
PKERB_RETRIEVE_TKT_RESPONSE pTicketResponse = NULL;
NTSTATUS Status, SubStatus;
ULONG requestSize = 0;
ULONG responseSize = 0;
ULONG rspSize = 0;
HANDLE LogonHandle = NULL;
ULONG PackageId;
jobject ticket, clientPrincipal, targetPrincipal, encryptionKey;
jobject ticketFlags, startTime, endTime, krbCreds = NULL;
jobject authTime, renewTillTime, hostAddresses = NULL;
KERB_EXTERNAL_TICKET *msticket;
int found_in_cache = 0;
FILETIME Now, EndTime, LocalEndTime;
int i, netypes;
jint *etypes = NULL;
while (TRUE) {
if (krbcredsConstructor == 0) {
krbcredsConstructor = (*env)->GetMethodID(env, krbcredsClass, "<init>",
"(Lsun/security/krb5/internal/Ticket;"
"Lsun/security/krb5/PrincipalName;"
"Lsun/security/krb5/PrincipalName;"
"Lsun/security/krb5/EncryptionKey;"
"Lsun/security/krb5/internal/TicketFlags;"
"Lsun/security/krb5/internal/KerberosTime;"
"Lsun/security/krb5/internal/KerberosTime;"
"Lsun/security/krb5/internal/KerberosTime;"
"Lsun/security/krb5/internal/KerberosTime;"
"Lsun/security/krb5/internal/HostAddresses;)V");
if (krbcredsConstructor == 0) {
printf("LSA: Couldn't find sun.security.krb5.Credentials constructor\n");
break;
}
}
if (native_debug) {
printf("LSA: Found KrbCreds constructor\n");
}
//
// Get the logon handle and package ID from the
// Kerberos package
//
if (!PackageConnectLookup(&LogonHandle, &PackageId))
break;
if (native_debug) {
printf("LSA: Got handle to Kerberos package\n");
}
// Get the MS TGT from cache
CacheRequest.MessageType = KerbRetrieveTicketMessage;
CacheRequest.LogonId.LowPart = 0;
CacheRequest.LogonId.HighPart = 0;
Status = LsaCallAuthenticationPackage(
LogonHandle,
PackageId,
&CacheRequest,
sizeof(CacheRequest),
&TktCacheResponse,
&rspSize,
&SubStatus
);
if (native_debug) {
printf("LSA: Response size is %d\n", rspSize);
}
if (!LSA_SUCCESS(Status) || !LSA_SUCCESS(SubStatus)) {
if (!LSA_SUCCESS(Status)) {
ShowNTError("LsaCallAuthenticationPackage", Status);
} else {
ShowNTError("Protocol status", SubStatus);
}
break;
}
// got the native MS TGT
msticket = &(TktCacheResponse->Ticket);
netypes = (*env)->GetArrayLength(env, jetypes);
etypes = (jint *) (*env)->GetIntArrayElements(env, jetypes, NULL);
// check TGT validity
if (native_debug) {
printf("LSA: TICKET SessionKey KeyType is %d\n", msticket->SessionKey.KeyType);
}
if ((msticket->TicketFlags & KERB_TICKET_FLAGS_invalid) == 0) {
GetSystemTimeAsFileTime(&Now);
EndTime.dwLowDateTime = msticket->EndTime.LowPart;
EndTime.dwHighDateTime = msticket->EndTime.HighPart;
FileTimeToLocalFileTime(&EndTime, &LocalEndTime);
if (CompareFileTime(&Now, &LocalEndTime) < 0) {
for (i=0; i<netypes; i++) {
if (etypes[i] == msticket->SessionKey.KeyType) {
found_in_cache = 1;
if (native_debug) {
printf("LSA: Valid etype found: %d\n", etypes[i]);
}
break;
}
}
}
}
if (!found_in_cache) {
if (native_debug) {
printf("LSA: MS TGT in cache is invalid/not supported; request new ticket\n");
}
// use domain to request Ticket
Status = ConstructTicketRequest(msticket->TargetDomainName,
&pTicketRequest, &requestSize);
if (!LSA_SUCCESS(Status)) {
ShowNTError("ConstructTicketRequest status", Status);
break;
}
pTicketRequest->MessageType = KerbRetrieveEncodedTicketMessage;
pTicketRequest->CacheOptions = KERB_RETRIEVE_TICKET_DONT_USE_CACHE;
for (i=0; i<netypes; i++) {
pTicketRequest->EncryptionType = etypes[i];
Status = LsaCallAuthenticationPackage(
LogonHandle,
PackageId,
pTicketRequest,
requestSize,
&pTicketResponse,
&responseSize,
&SubStatus
);
if (native_debug) {
printf("LSA: Response size is %d for %d\n", responseSize, etypes[i]);
}
if (!LSA_SUCCESS(Status) || !LSA_SUCCESS(SubStatus)) {
if (!LSA_SUCCESS(Status)) {
ShowNTError("LsaCallAuthenticationPackage", Status);
} else {
ShowNTError("Protocol status", SubStatus);
}
continue;
}
// got the native MS Kerberos TGT
msticket = &(pTicketResponse->Ticket);
break;
}
}
if (etypes != NULL) {
(*env)->ReleaseIntArrayElements(env, jetypes, etypes, 0);
}
/*
typedef struct _KERB_RETRIEVE_TKT_RESPONSE {
KERB_EXTERNAL_TICKET Ticket;
} KERB_RETRIEVE_TKT_RESPONSE, *PKERB_RETRIEVE_TKT_RESPONSE;
typedef struct _KERB_EXTERNAL_TICKET {
PKERB_EXTERNAL_NAME ServiceName;
PKERB_EXTERNAL_NAME TargetName;
PKERB_EXTERNAL_NAME ClientName;
UNICODE_STRING DomainName;
UNICODE_STRING TargetDomainName;
UNICODE_STRING AltTargetDomainName;
KERB_CRYPTO_KEY SessionKey;
ULONG TicketFlags;
ULONG Flags;
LARGE_INTEGER KeyExpirationTime;
LARGE_INTEGER StartTime;
LARGE_INTEGER EndTime;
LARGE_INTEGER RenewUntil;
LARGE_INTEGER TimeSkew;
ULONG EncodedTicketSize;
PUCHAR EncodedTicket; <========== Here's the good stuff
} KERB_EXTERNAL_TICKET, *PKERB_EXTERNAL_TICKET;
typedef struct _KERB_EXTERNAL_NAME {
SHORT NameType;
USHORT NameCount;
UNICODE_STRING Names[ANYSIZE_ARRAY];
} KERB_EXTERNAL_NAME, *PKERB_EXTERNAL_NAME;
typedef struct _LSA_UNICODE_STRING {
USHORT Length;
USHORT MaximumLength;
PWSTR Buffer;
} LSA_UNICODE_STRING, *PLSA_UNICODE_STRING;
typedef LSA_UNICODE_STRING UNICODE_STRING, *PUNICODE_STRING;
typedef struct KERB_CRYPTO_KEY {
LONG KeyType;
ULONG Length;
PUCHAR Value;
} KERB_CRYPTO_KEY, *PKERB_CRYPTO_KEY;
*/
// Build a com.sun.security.krb5.Ticket
ticket = BuildTicket(env, msticket->EncodedTicket,
msticket->EncodedTicketSize);
if (ticket == NULL) {
break;
}
// OK, have a Ticket, now need to get the client name
clientPrincipal = BuildPrincipal(env, msticket->ClientName,
msticket->TargetDomainName); // mdu
if (clientPrincipal == NULL) {
break;
}
// and the "name" of tgt
targetPrincipal = BuildPrincipal(env, msticket->ServiceName,
msticket->DomainName);
if (targetPrincipal == NULL) {
break;
}
// Get the encryption key
encryptionKey = BuildEncryptionKey(env, &(msticket->SessionKey));
if (encryptionKey == NULL) {
break;
}
// and the ticket flags
ticketFlags = BuildTicketFlags(env, &(msticket->TicketFlags));
if (ticketFlags == NULL) {
break;
}
// Get the start time
startTime = BuildKerberosTime(env, &(msticket->StartTime));
if (startTime == NULL) {
break;
}
/*
* mdu: No point storing the eky expiration time in the auth
* time field. Set it to be same as startTime. Looks like
* windows does not have post-dated tickets.
*/
authTime = startTime;
// and the end time
endTime = BuildKerberosTime(env, &(msticket->EndTime));
if (endTime == NULL) {
break;
}
// Get the renew till time
renewTillTime = BuildKerberosTime(env, &(msticket->RenewUntil));
if (renewTillTime == NULL) {
break;
}
// and now go build a KrbCreds object
krbCreds = (*env)->NewObject(
env,
krbcredsClass,
krbcredsConstructor,
ticket,
clientPrincipal,
targetPrincipal,
encryptionKey,
ticketFlags,
authTime, // mdu
startTime,
endTime,
renewTillTime, //mdu
hostAddresses);
break;
} // end of WHILE. This WHILE will never loop.
// clean up resources
if (TktCacheResponse != NULL) {
LsaFreeReturnBuffer(TktCacheResponse);
}
if (pTicketRequest) {
LocalFree(pTicketRequest);
}
if (pTicketResponse != NULL) {
LsaFreeReturnBuffer(pTicketResponse);
}
return krbCreds;
}
static NTSTATUS
ConstructTicketRequest(UNICODE_STRING DomainName,
PKERB_RETRIEVE_TKT_REQUEST *outRequest, ULONG *outSize)
{
NTSTATUS Status;
UNICODE_STRING TargetPrefix;
USHORT TargetSize;
ULONG RequestSize;
ULONG Length;
PKERB_RETRIEVE_TKT_REQUEST pTicketRequest = NULL;
*outRequest = NULL;
*outSize = 0;
//
// Set up the "krbtgt/" target prefix into a UNICODE_STRING so we
// can easily concatenate it later.
//
TargetPrefix.Buffer = L"krbtgt/";
Length = (ULONG)wcslen(TargetPrefix.Buffer) * sizeof(WCHAR);
TargetPrefix.Length = (USHORT)Length;
TargetPrefix.MaximumLength = TargetPrefix.Length;
//
// We will need to concatenate the "krbtgt/" prefix and the
// Logon Session's DnsDomainName into our request's target name.
//
// Therefore, first compute the necessary buffer size for that.
//
// Note that we might theoretically have integer overflow.
//
TargetSize = TargetPrefix.Length + DomainName.Length;
//
// The ticket request buffer needs to be a single buffer. That buffer
// needs to include the buffer for the target name.
//
RequestSize = sizeof (*pTicketRequest) + TargetSize;
//
// Allocate the request buffer and make sure it's zero-filled.
//
pTicketRequest = (PKERB_RETRIEVE_TKT_REQUEST)
LocalAlloc(LMEM_ZEROINIT, RequestSize);
if (!pTicketRequest)
return GetLastError();
//
// Concatenate the target prefix with the previous response's
// target domain.
//
pTicketRequest->TargetName.Length = 0;
pTicketRequest->TargetName.MaximumLength = TargetSize;
pTicketRequest->TargetName.Buffer = (PWSTR) (pTicketRequest + 1);
Status = ConcatenateUnicodeStrings(&(pTicketRequest->TargetName),
TargetPrefix,
DomainName);
*outRequest = pTicketRequest;
*outSize = RequestSize;
return Status;
}
DWORD
ConcatenateUnicodeStrings(
UNICODE_STRING *pTarget,
UNICODE_STRING Source1,
UNICODE_STRING Source2
)
{
//
// The buffers for Source1 and Source2 cannot overlap pTarget's
// buffer. Source1.Length + Source2.Length must be <= 0xFFFF,
// otherwise we overflow...
//
USHORT TotalSize = Source1.Length + Source2.Length;
PBYTE buffer = (PBYTE) pTarget->Buffer;
if (TotalSize > pTarget->MaximumLength)
return ERROR_INSUFFICIENT_BUFFER;
pTarget->Length = TotalSize;
memcpy(buffer, Source1.Buffer, Source1.Length);
memcpy(buffer + Source1.Length, Source2.Buffer, Source2.Length);
return ERROR_SUCCESS;
}
BOOL
PackageConnectLookup(
HANDLE *pLogonHandle,
ULONG *pPackageId
)
{
LSA_STRING Name;
NTSTATUS Status;
Status = LsaConnectUntrusted(
pLogonHandle
);
if (!LSA_SUCCESS(Status))
{
ShowNTError("LsaConnectUntrusted", Status);
return FALSE;
}
Name.Buffer = MICROSOFT_KERBEROS_NAME_A;
Name.Length = (USHORT)strlen(Name.Buffer);
Name.MaximumLength = Name.Length + 1;
Status = LsaLookupAuthenticationPackage(
*pLogonHandle,
&Name,
pPackageId
);
if (!LSA_SUCCESS(Status))
{
ShowNTError("LsaLookupAuthenticationPackage", Status);
return FALSE;
}
return TRUE;
}
VOID
ShowLastError(
LPSTR szAPI,
DWORD dwError
)
{
#define MAX_MSG_SIZE 256
static WCHAR szMsgBuf[MAX_MSG_SIZE];
DWORD dwRes;
if (native_debug) {
printf("LSA: Error calling function %s: %lu\n", szAPI, dwError);
}
dwRes = FormatMessage (
FORMAT_MESSAGE_FROM_SYSTEM,
NULL,
dwError,
0,
szMsgBuf,
MAX_MSG_SIZE,
NULL);
if (native_debug) {
if (0 == dwRes) {
printf("LSA: FormatMessage failed with %d\n", GetLastError());
// ExitProcess(EXIT_FAILURE);
} else {
printf("LSA: %S",szMsgBuf);
}
}
}
VOID
ShowNTError(
LPSTR szAPI,
NTSTATUS Status
)
{
//
// Convert the NTSTATUS to Winerror. Then call ShowLastError().
//
ShowLastError(szAPI, LsaNtStatusToWinError(Status));
}
VOID
InitUnicodeString(
PUNICODE_STRING DestinationString,
PCWSTR SourceString OPTIONAL
)
{
ULONG Length;
DestinationString->Buffer = (PWSTR)SourceString;
if (SourceString != NULL) {
Length = (ULONG)wcslen( SourceString ) * sizeof( WCHAR );
DestinationString->Length = (USHORT)Length;
DestinationString->MaximumLength = (USHORT)(Length + sizeof(UNICODE_NULL));
}
else {
DestinationString->MaximumLength = 0;
DestinationString->Length = 0;
}
}
jobject BuildTicket(JNIEnv *env, PUCHAR encodedTicket, ULONG encodedTicketSize) {
/* To build a Ticket, we first need to build a DerValue out of the EncodedTicket.
* But before we can do that, we need to make a byte array out of the ET.
*/
jobject derValue, ticket;
jbyteArray ary;
ary = (*env)->NewByteArray(env,encodedTicketSize);
if ((*env)->ExceptionOccurred(env)) {
return (jobject) NULL;
}
(*env)->SetByteArrayRegion(env, ary, (jsize) 0, encodedTicketSize,
(jbyte *)encodedTicket);
if ((*env)->ExceptionOccurred(env)) {
(*env)->DeleteLocalRef(env, ary);
return (jobject) NULL;
}
derValue = (*env)->NewObject(env, derValueClass, derValueConstructor, ary);
if ((*env)->ExceptionOccurred(env)) {
(*env)->DeleteLocalRef(env, ary);
return (jobject) NULL;
}
(*env)->DeleteLocalRef(env, ary);
ticket = (*env)->NewObject(env, ticketClass, ticketConstructor, derValue);
if ((*env)->ExceptionOccurred(env)) {
(*env)->DeleteLocalRef(env, derValue);
return (jobject) NULL;
}
(*env)->DeleteLocalRef(env, derValue);
return ticket;
}
// mdu
jobject BuildPrincipal(JNIEnv *env, PKERB_EXTERNAL_NAME principalName,
UNICODE_STRING domainName) {
/*
* To build the Principal, we need to get the names out of
* this goofy MS structure
*/
jobject principal = NULL;
jobject realmStr = NULL;
jobjectArray stringArray;
jstring tempString;
int nameCount,i;
PUNICODE_STRING scanner;
WCHAR *realm;
ULONG realmLen;
realm = (WCHAR *) LocalAlloc(LMEM_ZEROINIT,
((domainName.Length)*sizeof(WCHAR) + sizeof(UNICODE_NULL)));
wcsncpy(realm, domainName.Buffer, domainName.Length/sizeof(WCHAR));
if (native_debug) {
printf("LSA: Principal domain is %S\n", realm);
printf("LSA: Name type is %x\n", principalName->NameType);
printf("LSA: Name count is %x\n", principalName->NameCount);
}
nameCount = principalName->NameCount;
stringArray = (*env)->NewObjectArray(env, nameCount,
javaLangStringClass, NULL);
if (stringArray == NULL) {
if (native_debug) {
printf("LSA: Can't allocate String array for Principal\n");
}
LocalFree(realm);
return principal;
}
for (i=0; i<nameCount; i++) {
// get the principal name
scanner = &(principalName->Names[i]);
// OK, got a Char array, so construct a String
tempString = (*env)->NewString(env, (const jchar*)scanner->Buffer,
scanner->Length/sizeof(WCHAR));
// Set the String into the StringArray
(*env)->SetObjectArrayElement(env, stringArray, i, tempString);
// Do I have to worry about storage reclamation here?
}
// now set the realm in the principal
realmLen = (ULONG)wcslen((PWCHAR)realm);
realmStr = (*env)->NewString(env, (PWCHAR)realm, (USHORT)realmLen);
principal = (*env)->NewObject(env, principalNameClass,
principalNameConstructor, stringArray, realmStr);
// free local resources
LocalFree(realm);
return principal;
}
jobject BuildEncryptionKey(JNIEnv *env, PKERB_CRYPTO_KEY cryptoKey) {
// First, need to build a byte array
jbyteArray ary;
jobject encryptionKey = NULL;
unsigned int i;
for (i=0; i<cryptoKey->Length; i++) {
if (cryptoKey->Value[i]) break;
}
if (i == cryptoKey->Length) {
if (native_debug) {
printf("LSA: Session key all zero. Stop.\n");
}
return NULL;
}
ary = (*env)->NewByteArray(env,cryptoKey->Length);
(*env)->SetByteArrayRegion(env, ary, (jsize) 0, cryptoKey->Length,
(jbyte *)cryptoKey->Value);
if ((*env)->ExceptionOccurred(env)) {
(*env)->DeleteLocalRef(env, ary);
} else {
encryptionKey = (*env)->NewObject(env, encryptionKeyClass,
encryptionKeyConstructor, cryptoKey->KeyType, ary);
}
return encryptionKey;
}
jobject BuildTicketFlags(JNIEnv *env, PULONG flags) {
jobject ticketFlags = NULL;
jbyteArray ary;
/*
* mdu: Convert the bytes to nework byte order before copying
* them to a Java byte array.
*/
ULONG nlflags = htonl(*flags);
ary = (*env)->NewByteArray(env, sizeof(*flags));
(*env)->SetByteArrayRegion(env, ary, (jsize) 0, sizeof(*flags),
(jbyte *)&nlflags);
if ((*env)->ExceptionOccurred(env)) {
(*env)->DeleteLocalRef(env, ary);
} else {
ticketFlags = (*env)->NewObject(env, ticketFlagsClass,
ticketFlagsConstructor, sizeof(*flags)*8, ary);
}
return ticketFlags;
}
jobject BuildKerberosTime(JNIEnv *env, PLARGE_INTEGER kerbtime) {
jobject kerberosTime = NULL;
jstring stringTime = NULL;
SYSTEMTIME systemTime;
WCHAR timeString[16];
WCHAR month[3];
WCHAR day[3];
WCHAR hour[3];
WCHAR minute[3];
WCHAR second[3];
if (FileTimeToSystemTime((FILETIME *)kerbtime, &systemTime)) {
// XXX Cannot use %02.2ld, because the leading 0 is ignored for integers.
// So, print them to strings, and then print them to the master string with a
// format pattern that makes it two digits and prefix with a 0 if necessary.
swprintf( (wchar_t *)month, 3, L"%2.2d", systemTime.wMonth);
swprintf( (wchar_t *)day, 3, L"%2.2d", systemTime.wDay);
swprintf( (wchar_t *)hour, 3, L"%2.2d", systemTime.wHour);
swprintf( (wchar_t *)minute, 3, L"%2.2d", systemTime.wMinute);
swprintf( (wchar_t *)second, 3, L"%2.2d", systemTime.wSecond);
swprintf( (wchar_t *)timeString, 16,
L"%ld%02.2s%02.2s%02.2s%02.2s%02.2sZ",
systemTime.wYear,
month,
day,
hour,
minute,
second );
if (native_debug) {
printf("LSA: %S\n", (wchar_t *)timeString);
}
stringTime = (*env)->NewString(env, timeString,
(sizeof(timeString)/sizeof(WCHAR))-1);
if (stringTime != NULL) { // everything's OK so far
kerberosTime = (*env)->NewObject(env, kerberosTimeClass,
kerberosTimeConstructor, stringTime);
}
}
return kerberosTime;
}
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