1629 lines
54 KiB
C
1629 lines
54 KiB
C
/*
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* Copyright 2005, 2006 Kai Blin
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*
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* This file implements the NTLM security provider.
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*/
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#include <assert.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include "windef.h"
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#include "winbase.h"
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#include "winnls.h"
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#include "rpc.h"
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#include "sspi.h"
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#include "lm.h"
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#include "secur32_priv.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(secur32);
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#define NTLM_MAX_BUF 1904
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/***********************************************************************
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* QueryCredentialsAttributesA
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*/
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static SECURITY_STATUS SEC_ENTRY ntlm_QueryCredentialsAttributesA(
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PCredHandle phCredential, ULONG ulAttribute, PVOID pBuffer)
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{
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SECURITY_STATUS ret;
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TRACE("(%p, %ld, %p)\n", phCredential, ulAttribute, pBuffer);
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if(ulAttribute == SECPKG_ATTR_NAMES)
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{
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FIXME("SECPKG_CRED_ATTR_NAMES: stub\n");
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ret = SEC_E_UNSUPPORTED_FUNCTION;
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}
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else
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ret = SEC_E_UNSUPPORTED_FUNCTION;
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return ret;
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}
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/***********************************************************************
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* QueryCredentialsAttributesW
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*/
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static SECURITY_STATUS SEC_ENTRY ntlm_QueryCredentialsAttributesW(
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PCredHandle phCredential, ULONG ulAttribute, PVOID pBuffer)
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{
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SECURITY_STATUS ret;
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TRACE("(%p, %ld, %p)\n", phCredential, ulAttribute, pBuffer);
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if(ulAttribute == SECPKG_ATTR_NAMES)
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{
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FIXME("SECPKG_CRED_ATTR_NAMES: stub\n");
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ret = SEC_E_UNSUPPORTED_FUNCTION;
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}
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else
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ret = SEC_E_UNSUPPORTED_FUNCTION;
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return ret;
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}
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/***********************************************************************
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* AcquireCredentialsHandleW
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*/
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static SECURITY_STATUS SEC_ENTRY ntlm_AcquireCredentialsHandleW(
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SEC_WCHAR *pszPrincipal, SEC_WCHAR *pszPackage, ULONG fCredentialUse,
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PLUID pLogonID, PVOID pAuthData, SEC_GET_KEY_FN pGetKeyFn,
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PVOID pGetKeyArgument, PCredHandle phCredential, PTimeStamp ptsExpiry)
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{
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SECURITY_STATUS ret;
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PNegoHelper helper = NULL;
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static CHAR ntlm_auth[] = "ntlm_auth",
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helper_protocol[] = "--helper-protocol=squid-2.5-ntlmssp";
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SEC_CHAR *client_user_arg = NULL;
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SEC_CHAR *client_domain_arg = NULL;
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SEC_WCHAR *username = NULL, *domain = NULL;
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SEC_CHAR *client_argv[5];
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SEC_CHAR *server_argv[] = { ntlm_auth,
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helper_protocol,
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NULL };
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TRACE("(%s, %s, 0x%08lx, %p, %p, %p, %p, %p, %p)\n",
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debugstr_w(pszPrincipal), debugstr_w(pszPackage), fCredentialUse,
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pLogonID, pAuthData, pGetKeyFn, pGetKeyArgument, phCredential, ptsExpiry);
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switch(fCredentialUse)
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{
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case SECPKG_CRED_INBOUND:
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if( (ret = fork_helper(&helper, "ntlm_auth", server_argv)) !=
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SEC_E_OK)
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{
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phCredential = NULL;
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break;
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}
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else
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{
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helper->mode = NTLM_SERVER;
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phCredential->dwUpper = fCredentialUse;
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phCredential->dwLower = (ULONG_PTR)helper;
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}
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ret = SEC_E_OK;
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break;
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case SECPKG_CRED_OUTBOUND:
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{
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static const char username_arg[] = "--username=";
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static const char domain_arg[] = "--domain=";
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static char ntlm_auth[] = "ntlm_auth";
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static char helper_protocol[] = "--helper-protocol=ntlmssp-client-1";
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int unixcp_size;
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if(pAuthData == NULL)
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{
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LPWKSTA_USER_INFO_1 ui = NULL;
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NET_API_STATUS status;
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status = NetWkstaUserGetInfo(NULL, 1, (LPBYTE *)&ui);
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if (status != NERR_Success || ui == NULL)
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{
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ret = SEC_E_NO_CREDENTIALS;
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phCredential = NULL;
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break;
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}
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username = HeapAlloc(GetProcessHeap(), 0,
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(lstrlenW(ui->wkui1_username)+1) *
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sizeof(SEC_WCHAR));
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lstrcpyW(username, ui->wkui1_username);
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/* same for the domain */
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domain = HeapAlloc(GetProcessHeap(), 0,
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(lstrlenW(ui->wkui1_logon_domain)+1) *
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sizeof(SEC_WCHAR));
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lstrcpyW(domain, ui->wkui1_logon_domain);
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NetApiBufferFree(ui);
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}
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else
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{
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PSEC_WINNT_AUTH_IDENTITY_W auth_data =
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(PSEC_WINNT_AUTH_IDENTITY_W)pAuthData;
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if (!auth_data->UserLength || !auth_data->DomainLength)
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{
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ret = SEC_E_NO_CREDENTIALS;
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phCredential = NULL;
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break;
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}
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/* Get username and domain from pAuthData */
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username = HeapAlloc(GetProcessHeap(), 0,
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(auth_data->UserLength + 1) * sizeof(SEC_WCHAR));
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lstrcpyW(username, auth_data->User);
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domain = HeapAlloc(GetProcessHeap(), 0,
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(auth_data->DomainLength + 1) * sizeof(SEC_WCHAR));
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lstrcpyW(domain, auth_data->Domain);
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}
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TRACE("Username is %s\n", debugstr_w(username));
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unixcp_size = WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS,
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username, -1, NULL, 0, NULL, NULL) + sizeof(username_arg);
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client_user_arg = HeapAlloc(GetProcessHeap(), 0, unixcp_size);
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lstrcpyA(client_user_arg, username_arg);
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WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS, username, -1,
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client_user_arg + sizeof(username_arg) - 1,
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unixcp_size - sizeof(username_arg) + 1, NULL, NULL);
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TRACE("Domain name is %s\n", debugstr_w(domain));
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unixcp_size = WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS,
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domain, -1, NULL, 0, NULL, NULL) + sizeof(domain_arg);
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client_domain_arg = HeapAlloc(GetProcessHeap(), 0, unixcp_size);
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lstrcpyA(client_domain_arg, domain_arg);
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WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS, domain,
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-1, client_domain_arg + sizeof(domain_arg) - 1,
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unixcp_size - sizeof(domain) + 1, NULL, NULL);
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client_argv[0] = ntlm_auth;
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client_argv[1] = helper_protocol;
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client_argv[2] = client_user_arg;
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client_argv[3] = client_domain_arg;
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client_argv[4] = NULL;
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if((ret = fork_helper(&helper, "ntlm_auth", client_argv)) !=
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SEC_E_OK)
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{
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phCredential = NULL;
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break;
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}
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else
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{
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helper->mode = NTLM_CLIENT;
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if(pAuthData != NULL)
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{
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PSEC_WINNT_AUTH_IDENTITY_W auth_data =
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(PSEC_WINNT_AUTH_IDENTITY_W)pAuthData;
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if(auth_data->PasswordLength != 0)
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{
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helper->pwlen = WideCharToMultiByte(CP_UNIXCP,
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WC_NO_BEST_FIT_CHARS, auth_data->Password,
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auth_data->PasswordLength+1, NULL, 0, NULL, NULL);
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helper->password = HeapAlloc(GetProcessHeap(), 0,
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helper->pwlen);
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WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS,
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auth_data->Password, auth_data->PasswordLength+1,
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helper->password, helper->pwlen, NULL, NULL);
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}
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}
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phCredential->dwUpper = fCredentialUse;
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phCredential->dwLower = (ULONG_PTR)helper;
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TRACE("ACH phCredential->dwUpper: 0x%08lx, dwLower: 0x%08lx\n",
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phCredential->dwUpper, phCredential->dwLower);
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}
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ret = SEC_E_OK;
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break;
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}
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case SECPKG_CRED_BOTH:
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FIXME("AcquireCredentialsHandle: SECPKG_CRED_BOTH stub\n");
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ret = SEC_E_UNSUPPORTED_FUNCTION;
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phCredential = NULL;
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break;
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default:
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phCredential = NULL;
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ret = SEC_E_UNKNOWN_CREDENTIALS;
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}
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HeapFree(GetProcessHeap(), 0, client_user_arg);
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HeapFree(GetProcessHeap(), 0, client_domain_arg);
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HeapFree(GetProcessHeap(), 0, username);
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HeapFree(GetProcessHeap(), 0, domain);
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return ret;
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}
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/***********************************************************************
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* AcquireCredentialsHandleA
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*/
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static SECURITY_STATUS SEC_ENTRY ntlm_AcquireCredentialsHandleA(
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SEC_CHAR *pszPrincipal, SEC_CHAR *pszPackage, ULONG fCredentialUse,
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PLUID pLogonID, PVOID pAuthData, SEC_GET_KEY_FN pGetKeyFn,
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PVOID pGetKeyArgument, PCredHandle phCredential, PTimeStamp ptsExpiry)
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{
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SECURITY_STATUS ret;
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int user_sizeW, domain_sizeW, passwd_sizeW;
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SEC_WCHAR *user = NULL, *domain = NULL, *passwd = NULL, *package = NULL;
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PSEC_WINNT_AUTH_IDENTITY_W pAuthDataW = NULL;
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PSEC_WINNT_AUTH_IDENTITY_A identity = NULL;
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TRACE("(%s, %s, 0x%08lx, %p, %p, %p, %p, %p, %p)\n",
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debugstr_a(pszPrincipal), debugstr_a(pszPackage), fCredentialUse,
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pLogonID, pAuthData, pGetKeyFn, pGetKeyArgument, phCredential, ptsExpiry);
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if(pszPackage != NULL)
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{
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int package_sizeW = MultiByteToWideChar(CP_ACP, 0, pszPackage, -1,
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NULL, 0);
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package = HeapAlloc(GetProcessHeap(), 0, package_sizeW *
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sizeof(SEC_WCHAR));
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MultiByteToWideChar(CP_ACP, 0, pszPackage, -1, package, package_sizeW);
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}
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if(pAuthData != NULL)
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{
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identity = (PSEC_WINNT_AUTH_IDENTITY_A)pAuthData;
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if(identity->Flags == SEC_WINNT_AUTH_IDENTITY_ANSI)
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{
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pAuthDataW = HeapAlloc(GetProcessHeap(), 0,
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sizeof(SEC_WINNT_AUTH_IDENTITY_W));
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if(identity->UserLength != 0)
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{
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user_sizeW = MultiByteToWideChar(CP_ACP, 0,
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(LPCSTR)identity->User, identity->UserLength+1, NULL, 0);
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user = HeapAlloc(GetProcessHeap(), 0, user_sizeW *
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sizeof(SEC_WCHAR));
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MultiByteToWideChar(CP_ACP, 0, (LPCSTR)identity->User,
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identity->UserLength+1, user, user_sizeW);
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}
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else
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{
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user_sizeW = 0;
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}
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if(identity->DomainLength != 0)
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{
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domain_sizeW = MultiByteToWideChar(CP_ACP, 0,
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(LPCSTR)identity->Domain, identity->DomainLength+1, NULL, 0);
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domain = HeapAlloc(GetProcessHeap(), 0, domain_sizeW
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* sizeof(SEC_WCHAR));
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MultiByteToWideChar(CP_ACP, 0, (LPCSTR)identity->Domain,
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identity->DomainLength+1, domain, domain_sizeW);
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}
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else
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{
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domain_sizeW = 0;
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}
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if(identity->PasswordLength != 0)
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{
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passwd_sizeW = MultiByteToWideChar(CP_ACP, 0,
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(LPCSTR)identity->Password, identity->PasswordLength+1,
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NULL, 0);
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passwd = HeapAlloc(GetProcessHeap(), 0, passwd_sizeW
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* sizeof(SEC_WCHAR));
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MultiByteToWideChar(CP_ACP, 0, (LPCSTR)identity->Password,
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identity->PasswordLength+1, passwd, passwd_sizeW);
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}
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else
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{
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passwd_sizeW = 0;
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}
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pAuthDataW->Flags = SEC_WINNT_AUTH_IDENTITY_UNICODE;
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pAuthDataW->User = user;
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pAuthDataW->UserLength = user_sizeW;
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pAuthDataW->Domain = domain;
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pAuthDataW->DomainLength = domain_sizeW;
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pAuthDataW->Password = passwd;
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pAuthDataW->PasswordLength = passwd_sizeW;
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}
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else
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{
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pAuthDataW = (PSEC_WINNT_AUTH_IDENTITY_W)identity;
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}
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}
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ret = ntlm_AcquireCredentialsHandleW(NULL, package, fCredentialUse,
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pLogonID, pAuthDataW, pGetKeyFn, pGetKeyArgument, phCredential,
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ptsExpiry);
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HeapFree(GetProcessHeap(), 0, package);
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HeapFree(GetProcessHeap(), 0, user);
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HeapFree(GetProcessHeap(), 0, domain);
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HeapFree(GetProcessHeap(), 0, passwd);
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if(pAuthDataW != (PSEC_WINNT_AUTH_IDENTITY_W)identity)
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HeapFree(GetProcessHeap(), 0, pAuthDataW);
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return ret;
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}
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/***********************************************************************
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* InitializeSecurityContextW
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*/
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static SECURITY_STATUS SEC_ENTRY ntlm_InitializeSecurityContextW(
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PCredHandle phCredential, PCtxtHandle phContext, SEC_WCHAR *pszTargetName,
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ULONG fContextReq, ULONG Reserved1, ULONG TargetDataRep,
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PSecBufferDesc pInput, ULONG Reserved2, PCtxtHandle phNewContext,
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PSecBufferDesc pOutput, ULONG *pfContextAttr, PTimeStamp ptsExpiry)
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{
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SECURITY_STATUS ret;
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PNegoHelper helper;
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ULONG ctxt_attr = 0;
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char* buffer, *want_flags = NULL;
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PBYTE bin;
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int buffer_len, bin_len, max_len = NTLM_MAX_BUF;
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TRACE("%p %p %s %ld %ld %ld %p %ld %p %p %p %p\n", phCredential, phContext,
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debugstr_w(pszTargetName), fContextReq, Reserved1, TargetDataRep, pInput,
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Reserved1, phNewContext, pOutput, pfContextAttr, ptsExpiry);
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if(!phCredential)
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return SEC_E_INVALID_HANDLE;
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/* As the server side of sspi never calls this, make sure that
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* the handler is a client handler.
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*/
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helper = (PNegoHelper)phCredential->dwLower;
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if(helper->mode != NTLM_CLIENT)
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{
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TRACE("Helper mode = %d\n", helper->mode);
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return SEC_E_INVALID_HANDLE;
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}
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/****************************************
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* When communicating with the client, there can be the
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* following reply packets:
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* YR <base64 blob> should be sent to the server
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* PW should be sent back to helper with
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* base64 encoded password
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* AF <base64 blob> client is done, blob should be
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* sent to server with KK prefixed
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* GF <string list> A string list of negotiated flags
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* GK <base64 blob> base64 encoded session key
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* BH <char reason> something broke
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*/
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/* The squid cache size is 2010 chars, and that's what ntlm_auth uses */
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if (pszTargetName)
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{
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TRACE("According to a MS whitepaper pszTargetName is ignored.\n");
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}
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|
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if(TargetDataRep == SECURITY_NETWORK_DREP){
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TRACE("Setting SECURITY_NETWORK_DREP\n");
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}
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|
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buffer = HeapAlloc(GetProcessHeap(), 0, sizeof(char) * NTLM_MAX_BUF);
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bin = HeapAlloc(GetProcessHeap(), 0, sizeof(BYTE) * NTLM_MAX_BUF);
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|
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if((phContext == NULL) && (pInput == NULL))
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{
|
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TRACE("First time in ISC()\n");
|
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/* Allocate space for a maximal string of
|
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* "SF NTLMSSP_FEATURE_SIGN NTLMSSP_FEATURE_SEAL
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* NTLMSSP_FEATURE_SESSION_KEY"
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*/
|
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want_flags = HeapAlloc(GetProcessHeap(), 0, 73);
|
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if(want_flags == NULL)
|
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{
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ret = SEC_E_INSUFFICIENT_MEMORY;
|
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goto isc_end;
|
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}
|
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lstrcpyA(want_flags, "SF");
|
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if(fContextReq & ISC_REQ_CONFIDENTIALITY)
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lstrcatA(want_flags, " NTLMSSP_FEATURE_SEAL");
|
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if(fContextReq & ISC_REQ_CONNECTION)
|
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{
|
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/* This is default, so we'll enable it */
|
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ctxt_attr |= ISC_RET_CONNECTION;
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lstrcatA(want_flags, " NTLMSSP_FEATURE_SESSION_KEY");
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}
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if(fContextReq & ISC_REQ_EXTENDED_ERROR)
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FIXME("ISC_REQ_EXTENDED_ERROR\n");
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if(fContextReq & ISC_REQ_INTEGRITY)
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lstrcatA(want_flags, " NTLMSSP_FEATURE_SIGN");
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if(fContextReq & ISC_REQ_MUTUAL_AUTH)
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FIXME("ISC_REQ_MUTUAL_AUTH\n");
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if(fContextReq & ISC_REQ_REPLAY_DETECT)
|
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FIXME("ISC_REQ_REPLAY_DETECT\n");
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if(fContextReq & ISC_REQ_SEQUENCE_DETECT)
|
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FIXME("ISC_REQ_SEQUENCE_DETECT\n");
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if(fContextReq & ISC_REQ_STREAM)
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FIXME("ISC_REQ_STREAM\n");
|
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|
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/* Request a challenge request from ntlm_auth */
|
|
if(helper->password == NULL)
|
|
{
|
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FIXME("Using empty password for now.\n");
|
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lstrcpynA(buffer, "PW AA==", max_len-1);
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|
}
|
|
else
|
|
{
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|
lstrcpynA(buffer, "PW ", max_len-1);
|
|
if((ret = encodeBase64((unsigned char*)helper->password,
|
|
helper->pwlen-2, buffer+3,
|
|
max_len-3, &buffer_len)) != SEC_E_OK)
|
|
{
|
|
TRACE("Deleting password!\n");
|
|
memset(helper->password, 0, helper->pwlen-2);
|
|
HeapFree(GetProcessHeap(), 0, helper->password);
|
|
goto isc_end;
|
|
}
|
|
|
|
}
|
|
|
|
TRACE("Sending to helper: %s\n", debugstr_a(buffer));
|
|
if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
|
|
goto isc_end;
|
|
|
|
TRACE("Helper returned %s\n", debugstr_a(buffer));
|
|
|
|
if(lstrlenA(want_flags) > 2)
|
|
{
|
|
TRACE("Want flags are '%s'\n", debugstr_a(want_flags));
|
|
lstrcpynA(buffer, want_flags, max_len-1);
|
|
if((ret = run_helper(helper, buffer, max_len, &buffer_len))
|
|
!= SEC_E_OK)
|
|
goto isc_end;
|
|
if(!strncmp(buffer, "BH", 2))
|
|
TRACE("Helper doesn't understand new command set\n");
|
|
}
|
|
|
|
lstrcpynA(buffer, "YR", max_len-1);
|
|
|
|
if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
|
|
goto isc_end;
|
|
|
|
TRACE("%s\n", buffer);
|
|
|
|
if(strncmp(buffer, "YR ", 3) != 0)
|
|
{
|
|
/* Something borked */
|
|
TRACE("Helper returned %c%c\n", buffer[0], buffer[1]);
|
|
ret = SEC_E_INTERNAL_ERROR;
|
|
goto isc_end;
|
|
}
|
|
if((ret = decodeBase64(buffer+3, buffer_len-3, bin,
|
|
max_len-1, &bin_len)) != SEC_E_OK)
|
|
goto isc_end;
|
|
|
|
/* Mask away the NTLMv2 flag, as well as the key exchange flag */
|
|
bin[14] &= ~0x08;
|
|
bin[15] &= ~0x40;
|
|
|
|
/* put the decoded client blob into the out buffer */
|
|
|
|
ret = SEC_I_CONTINUE_NEEDED;
|
|
}
|
|
else
|
|
{
|
|
/* handle second call here */
|
|
/* encode server data to base64 */
|
|
if (!pInput || !pInput->cBuffers)
|
|
{
|
|
ret = SEC_E_INCOMPLETE_MESSAGE;
|
|
goto isc_end;
|
|
}
|
|
|
|
if (!pInput->pBuffers[0].pvBuffer)
|
|
{
|
|
ret = SEC_E_INTERNAL_ERROR;
|
|
goto isc_end;
|
|
}
|
|
|
|
if(pInput->pBuffers[0].cbBuffer > max_len)
|
|
{
|
|
TRACE("pInput->pBuffers[0].cbBuffer is: %ld\n",
|
|
pInput->pBuffers[0].cbBuffer);
|
|
ret = SEC_E_INVALID_TOKEN;
|
|
goto isc_end;
|
|
}
|
|
else
|
|
bin_len = pInput->pBuffers[0].cbBuffer;
|
|
|
|
memcpy(bin, pInput->pBuffers[0].pvBuffer, bin_len);
|
|
|
|
lstrcpynA(buffer, "TT ", max_len-1);
|
|
|
|
if((ret = encodeBase64(bin, bin_len, buffer+3,
|
|
max_len-3, &buffer_len)) != SEC_E_OK)
|
|
goto isc_end;
|
|
|
|
TRACE("Server sent: %s\n", debugstr_a(buffer));
|
|
|
|
/* send TT base64 blob to ntlm_auth */
|
|
if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
|
|
goto isc_end;
|
|
|
|
TRACE("Helper replied: %s\n", debugstr_a(buffer));
|
|
|
|
if( (strncmp(buffer, "KK ", 3) != 0) &&
|
|
(strncmp(buffer, "AF ", 3) !=0))
|
|
{
|
|
TRACE("Helper returned %c%c\n", buffer[0], buffer[1]);
|
|
ret = SEC_E_INVALID_TOKEN;
|
|
goto isc_end;
|
|
}
|
|
|
|
/* decode the blob and send it to server */
|
|
if((ret = decodeBase64(buffer+3, buffer_len-3, bin, max_len,
|
|
&bin_len)) != SEC_E_OK)
|
|
{
|
|
goto isc_end;
|
|
}
|
|
|
|
phNewContext->dwUpper = ctxt_attr;
|
|
phNewContext->dwLower = (ULONG_PTR)helper;
|
|
|
|
ret = SEC_E_OK;
|
|
}
|
|
|
|
/* put the decoded client blob into the out buffer */
|
|
|
|
if (fContextReq & ISC_REQ_ALLOCATE_MEMORY)
|
|
{
|
|
if (pOutput)
|
|
{
|
|
pOutput->cBuffers = 1;
|
|
pOutput->pBuffers[0].pvBuffer = SECUR32_ALLOC(bin_len);
|
|
pOutput->pBuffers[0].cbBuffer = bin_len;
|
|
}
|
|
}
|
|
|
|
if (!pOutput || !pOutput->cBuffers || pOutput->pBuffers[0].cbBuffer < bin_len)
|
|
{
|
|
TRACE("out buffer is NULL or has not enough space\n");
|
|
ret = SEC_E_BUFFER_TOO_SMALL;
|
|
goto isc_end;
|
|
}
|
|
|
|
if (!pOutput->pBuffers[0].pvBuffer)
|
|
{
|
|
TRACE("out buffer is NULL\n");
|
|
ret = SEC_E_INTERNAL_ERROR;
|
|
goto isc_end;
|
|
}
|
|
|
|
pOutput->pBuffers[0].cbBuffer = bin_len;
|
|
pOutput->pBuffers[0].BufferType = SECBUFFER_DATA;
|
|
memcpy(pOutput->pBuffers[0].pvBuffer, bin, bin_len);
|
|
|
|
if(ret == SEC_E_OK)
|
|
{
|
|
TRACE("Getting negotiated flags\n");
|
|
lstrcpynA(buffer, "GF", max_len - 1);
|
|
if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
|
|
goto isc_end;
|
|
|
|
if(buffer_len < 3)
|
|
{
|
|
TRACE("No flags negotiated, or helper does not support GF command\n");
|
|
helper->neg_flags = 0l;
|
|
}
|
|
else
|
|
{
|
|
TRACE("Negotiated %s\n", debugstr_a(buffer));
|
|
sscanf(buffer + 3, "%lx", &(helper->neg_flags));
|
|
TRACE("Stored 0x%08lx as flags\n", helper->neg_flags);
|
|
}
|
|
|
|
TRACE("Getting session key\n");
|
|
lstrcpynA(buffer, "GK", max_len - 1);
|
|
if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
|
|
goto isc_end;
|
|
|
|
if(strncmp(buffer, "BH", 2) == 0)
|
|
{
|
|
TRACE("Helper does not understand command or no key negotiated.\n");
|
|
helper->valid_session_key = FALSE;
|
|
helper->session_key = HeapAlloc(GetProcessHeap(), 0, 16);
|
|
/*Generate the dummy session key = MD4(MD4(password))*/
|
|
if(helper->password)
|
|
{
|
|
SEC_WCHAR *unicode_password;
|
|
int passwd_lenW;
|
|
|
|
TRACE("Converting password to unicode.\n");
|
|
passwd_lenW = MultiByteToWideChar(CP_ACP, 0,
|
|
(LPCSTR)helper->password, helper->pwlen,
|
|
NULL, 0);
|
|
unicode_password = HeapAlloc(GetProcessHeap(), 0,
|
|
passwd_lenW * sizeof(SEC_WCHAR));
|
|
MultiByteToWideChar(CP_ACP, 0, (LPCSTR)helper->password,
|
|
helper->pwlen, unicode_password, passwd_lenW);
|
|
|
|
SECUR32_CreateNTLMv1SessionKey((PBYTE)unicode_password,
|
|
lstrlenW(unicode_password) * sizeof(SEC_WCHAR), helper->session_key);
|
|
|
|
HeapFree(GetProcessHeap(), 0, unicode_password);
|
|
}
|
|
else
|
|
memset(helper->session_key, 0, 16);
|
|
}
|
|
else if(strncmp(buffer, "GK ", 3) == 0)
|
|
{
|
|
if((ret = decodeBase64(buffer+3, buffer_len-3, bin, max_len,
|
|
&bin_len)) != SEC_E_OK)
|
|
{
|
|
TRACE("Failed to decode session key\n");
|
|
}
|
|
TRACE("Session key is %s\n", debugstr_a(buffer+3));
|
|
helper->valid_session_key = TRUE;
|
|
if(!helper->session_key)
|
|
helper->session_key = HeapAlloc(GetProcessHeap(), 0, bin_len);
|
|
if(!helper->session_key)
|
|
{
|
|
TRACE("Failed to allocate memory for session key\n");
|
|
ret = SEC_E_INTERNAL_ERROR;
|
|
goto isc_end;
|
|
}
|
|
memcpy(helper->session_key, bin, bin_len);
|
|
}
|
|
|
|
helper->crypt.ntlm.a4i = SECUR32_arc4Alloc();
|
|
SECUR32_arc4Init(helper->crypt.ntlm.a4i, helper->session_key, 16);
|
|
helper->crypt.ntlm.seq_num = 0l;
|
|
}
|
|
|
|
if(ret != SEC_I_CONTINUE_NEEDED)
|
|
{
|
|
TRACE("Deleting password!\n");
|
|
if(helper->password)
|
|
memset(helper->password, 0, helper->pwlen-2);
|
|
HeapFree(GetProcessHeap(), 0, helper->password);
|
|
}
|
|
isc_end:
|
|
HeapFree(GetProcessHeap(), 0, want_flags);
|
|
HeapFree(GetProcessHeap(), 0, buffer);
|
|
HeapFree(GetProcessHeap(), 0, bin);
|
|
return ret;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* InitializeSecurityContextA
|
|
*/
|
|
static SECURITY_STATUS SEC_ENTRY ntlm_InitializeSecurityContextA(
|
|
PCredHandle phCredential, PCtxtHandle phContext, SEC_CHAR *pszTargetName,
|
|
ULONG fContextReq, ULONG Reserved1, ULONG TargetDataRep,
|
|
PSecBufferDesc pInput,ULONG Reserved2, PCtxtHandle phNewContext,
|
|
PSecBufferDesc pOutput, ULONG *pfContextAttr, PTimeStamp ptsExpiry)
|
|
{
|
|
SECURITY_STATUS ret;
|
|
|
|
TRACE("%p %p %s %ld %ld %ld %p %ld %p %p %p %p\n", phCredential, phContext,
|
|
debugstr_a(pszTargetName), fContextReq, Reserved1, TargetDataRep, pInput,
|
|
Reserved1, phNewContext, pOutput, pfContextAttr, ptsExpiry);
|
|
|
|
if (phCredential)
|
|
{
|
|
SEC_WCHAR *target = NULL;
|
|
if(pszTargetName != NULL)
|
|
{
|
|
int target_size = MultiByteToWideChar(CP_ACP, 0, pszTargetName,
|
|
strlen(pszTargetName)+1, NULL, 0);
|
|
target = HeapAlloc(GetProcessHeap(), 0, target_size *
|
|
sizeof(SEC_WCHAR));
|
|
MultiByteToWideChar(CP_ACP, 0, pszTargetName, strlen(pszTargetName)+1,
|
|
target, target_size);
|
|
}
|
|
|
|
ret = ntlm_InitializeSecurityContextW(phCredential, phContext, target,
|
|
fContextReq, Reserved1, TargetDataRep, pInput, Reserved2,
|
|
phNewContext, pOutput, pfContextAttr, ptsExpiry);
|
|
|
|
HeapFree(GetProcessHeap(), 0, target);
|
|
}
|
|
else
|
|
{
|
|
ret = SEC_E_INVALID_HANDLE;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* AcceptSecurityContext
|
|
*/
|
|
static SECURITY_STATUS SEC_ENTRY ntlm_AcceptSecurityContext(
|
|
PCredHandle phCredential, PCtxtHandle phContext, PSecBufferDesc pInput,
|
|
ULONG fContextReq, ULONG TargetDataRep, PCtxtHandle phNewContext,
|
|
PSecBufferDesc pOutput, ULONG *pfContextAttr, PTimeStamp ptsExpiry)
|
|
{
|
|
SECURITY_STATUS ret;
|
|
char *buffer, *want_flags = NULL;
|
|
PBYTE bin;
|
|
int buffer_len, bin_len, max_len = NTLM_MAX_BUF;
|
|
ULONG ctxt_attr = 0;
|
|
PNegoHelper helper;
|
|
|
|
TRACE("%p %p %p %ld %ld %p %p %p %p\n", phCredential, phContext, pInput,
|
|
fContextReq, TargetDataRep, phNewContext, pOutput, pfContextAttr,
|
|
ptsExpiry);
|
|
|
|
if (!phCredential)
|
|
return SEC_E_INVALID_HANDLE;
|
|
|
|
helper = (PNegoHelper)phCredential->dwLower;
|
|
|
|
buffer = HeapAlloc(GetProcessHeap(), 0, sizeof(char) * NTLM_MAX_BUF);
|
|
bin = HeapAlloc(GetProcessHeap(),0, sizeof(BYTE) * NTLM_MAX_BUF);
|
|
|
|
if(helper->mode != NTLM_SERVER)
|
|
{
|
|
ret = SEC_E_INVALID_HANDLE;
|
|
goto asc_end;
|
|
}
|
|
|
|
if(TargetDataRep == SECURITY_NETWORK_DREP){
|
|
TRACE("Using SECURITY_NETWORK_DREP\n");
|
|
}
|
|
|
|
if(phContext == NULL)
|
|
{
|
|
/* This is the first call to AcceptSecurityHandle */
|
|
if(pInput == NULL)
|
|
{
|
|
ret = SEC_E_INCOMPLETE_MESSAGE;
|
|
goto asc_end;
|
|
}
|
|
|
|
if(pInput->cBuffers < 1)
|
|
{
|
|
ret = SEC_E_INCOMPLETE_MESSAGE;
|
|
goto asc_end;
|
|
}
|
|
|
|
if(pInput->pBuffers[0].cbBuffer > max_len)
|
|
{
|
|
ret = SEC_E_INVALID_TOKEN;
|
|
goto asc_end;
|
|
}
|
|
else
|
|
bin_len = pInput->pBuffers[0].cbBuffer;
|
|
|
|
/* Handle all the flags */
|
|
want_flags = HeapAlloc(GetProcessHeap(), 0, 73);
|
|
if(want_flags == NULL)
|
|
{
|
|
TRACE("Failed to allocate memory for the want_flags!\n");
|
|
ret = SEC_E_INSUFFICIENT_MEMORY;
|
|
goto asc_end;
|
|
}
|
|
lstrcpyA(want_flags, "SF");
|
|
if(fContextReq & ASC_REQ_ALLOCATE_MEMORY)
|
|
{
|
|
FIXME("ASC_REQ_ALLOCATE_MEMORY stub\n");
|
|
}
|
|
if(fContextReq & ASC_REQ_CONFIDENTIALITY)
|
|
{
|
|
lstrcatA(want_flags, " NTLMSSP_FEATURE_SEAL");
|
|
}
|
|
if(fContextReq & ASC_REQ_CONNECTION)
|
|
{
|
|
/* This is default, so we'll enable it */
|
|
lstrcatA(want_flags, " NTLMSSP_FEATURE_SESSION_KEY");
|
|
ctxt_attr |= ASC_RET_CONNECTION;
|
|
}
|
|
if(fContextReq & ASC_REQ_EXTENDED_ERROR)
|
|
{
|
|
FIXME("ASC_REQ_EXTENDED_ERROR stub\n");
|
|
}
|
|
if(fContextReq & ASC_REQ_INTEGRITY)
|
|
{
|
|
lstrcatA(want_flags, " NTLMSSP_FEATURE_SIGN");
|
|
}
|
|
if(fContextReq & ASC_REQ_MUTUAL_AUTH)
|
|
{
|
|
FIXME("ASC_REQ_MUTUAL_AUTH stub\n");
|
|
}
|
|
if(fContextReq & ASC_REQ_REPLAY_DETECT)
|
|
{
|
|
FIXME("ASC_REQ_REPLAY_DETECT stub\n");
|
|
}
|
|
if(fContextReq & ISC_REQ_SEQUENCE_DETECT)
|
|
{
|
|
FIXME("ASC_REQ_SEQUENCE_DETECT stub\n");
|
|
}
|
|
if(fContextReq & ISC_REQ_STREAM)
|
|
{
|
|
FIXME("ASC_REQ_STREAM stub\n");
|
|
}
|
|
/* Done with the flags */
|
|
|
|
if(lstrlenA(want_flags) > 3)
|
|
{
|
|
TRACE("Server set want_flags: %s\n", debugstr_a(want_flags));
|
|
lstrcpynA(buffer, want_flags, max_len - 1);
|
|
if((ret = run_helper(helper, buffer, max_len, &buffer_len)) !=
|
|
SEC_E_OK)
|
|
goto asc_end;
|
|
if(!strncmp(buffer, "BH", 2))
|
|
TRACE("Helper doesn't understand new command set\n");
|
|
}
|
|
|
|
/* This is the YR request from the client, encode to base64 */
|
|
|
|
memcpy(bin, pInput->pBuffers[0].pvBuffer, bin_len);
|
|
|
|
lstrcpynA(buffer, "YR ", max_len-1);
|
|
|
|
if((ret = encodeBase64(bin, bin_len, buffer+3, max_len-3,
|
|
&buffer_len)) != SEC_E_OK)
|
|
{
|
|
goto asc_end;
|
|
}
|
|
|
|
TRACE("Client sent: %s\n", debugstr_a(buffer));
|
|
|
|
if((ret = run_helper(helper, buffer, max_len, &buffer_len)) !=
|
|
SEC_E_OK)
|
|
{
|
|
goto asc_end;
|
|
}
|
|
|
|
TRACE("Reply from ntlm_auth: %s\n", debugstr_a(buffer));
|
|
/* The expected answer is TT <base64 blob> */
|
|
|
|
if(strncmp(buffer, "TT ", 3) != 0)
|
|
{
|
|
ret = SEC_E_INTERNAL_ERROR;
|
|
goto asc_end;
|
|
}
|
|
|
|
if((ret = decodeBase64(buffer+3, buffer_len-3, bin, max_len,
|
|
&bin_len)) != SEC_E_OK)
|
|
{
|
|
goto asc_end;
|
|
}
|
|
|
|
/* send this to the client */
|
|
if(pOutput == NULL)
|
|
{
|
|
ret = SEC_E_INSUFFICIENT_MEMORY;
|
|
goto asc_end;
|
|
}
|
|
|
|
if(pOutput->cBuffers < 1)
|
|
{
|
|
ret = SEC_E_INSUFFICIENT_MEMORY;
|
|
goto asc_end;
|
|
}
|
|
|
|
pOutput->pBuffers[0].cbBuffer = bin_len;
|
|
pOutput->pBuffers[0].BufferType = SECBUFFER_DATA;
|
|
memcpy(pOutput->pBuffers[0].pvBuffer, bin, bin_len);
|
|
ret = SEC_I_CONTINUE_NEEDED;
|
|
|
|
}
|
|
else
|
|
{
|
|
/* we expect a KK request from client */
|
|
if(pInput == NULL)
|
|
{
|
|
ret = SEC_E_INCOMPLETE_MESSAGE;
|
|
goto asc_end;
|
|
}
|
|
|
|
if(pInput->cBuffers < 1)
|
|
{
|
|
ret = SEC_E_INCOMPLETE_MESSAGE;
|
|
goto asc_end;
|
|
}
|
|
|
|
if(pInput->pBuffers[0].cbBuffer > max_len)
|
|
{
|
|
ret = SEC_E_INVALID_TOKEN;
|
|
goto asc_end;
|
|
}
|
|
else
|
|
bin_len = pInput->pBuffers[0].cbBuffer;
|
|
|
|
memcpy(bin, pInput->pBuffers[0].pvBuffer, bin_len);
|
|
|
|
lstrcpynA(buffer, "KK ", max_len-1);
|
|
|
|
if((ret = encodeBase64(bin, bin_len, buffer+3, max_len-3,
|
|
&buffer_len)) != SEC_E_OK)
|
|
{
|
|
goto asc_end;
|
|
}
|
|
|
|
TRACE("Client sent: %s\n", debugstr_a(buffer));
|
|
|
|
if((ret = run_helper(helper, buffer, max_len, &buffer_len)) !=
|
|
SEC_E_OK)
|
|
{
|
|
goto asc_end;
|
|
}
|
|
|
|
TRACE("Reply from ntlm_auth: %s\n", debugstr_a(buffer));
|
|
|
|
if(strncmp(buffer, "AF ", 3) != 0)
|
|
{
|
|
if(strncmp(buffer, "NA ", 3) == 0)
|
|
{
|
|
ret = SEC_E_LOGON_DENIED;
|
|
goto asc_end;
|
|
}
|
|
else
|
|
{
|
|
ret = SEC_E_INTERNAL_ERROR;
|
|
goto asc_end;
|
|
}
|
|
}
|
|
pOutput->pBuffers[0].cbBuffer = 0;
|
|
ret = SEC_E_OK;
|
|
|
|
TRACE("Getting negotiated flags\n");
|
|
lstrcpynA(buffer, "GF", max_len - 1);
|
|
if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
|
|
goto asc_end;
|
|
|
|
if(buffer_len < 3)
|
|
{
|
|
TRACE("No flags negotiated, or helper does not support GF command\n");
|
|
}
|
|
else
|
|
{
|
|
TRACE("Negotiated %s\n", debugstr_a(buffer));
|
|
sscanf(buffer + 3, "%lx", &(helper->neg_flags));
|
|
TRACE("Stored 0x%08lx as flags\n", helper->neg_flags);
|
|
}
|
|
|
|
TRACE("Getting session key\n");
|
|
lstrcpynA(buffer, "GK", max_len - 1);
|
|
if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
|
|
goto asc_end;
|
|
|
|
if(buffer_len < 3)
|
|
TRACE("Helper does not support GK command\n");
|
|
else
|
|
{
|
|
if(strncmp(buffer, "BH ", 3) == 0)
|
|
{
|
|
TRACE("Helper sent %s\n", debugstr_a(buffer+3));
|
|
helper->valid_session_key = FALSE;
|
|
helper->session_key = HeapAlloc(GetProcessHeap(), 0, 16);
|
|
/*FIXME: Generate the dummy session key = MD4(MD4(password))*/
|
|
memset(helper->session_key, 0 , 16);
|
|
}
|
|
else if(strncmp(buffer, "GK ", 3) == 0)
|
|
{
|
|
if((ret = decodeBase64(buffer+3, buffer_len-3, bin, max_len,
|
|
&bin_len)) != SEC_E_OK)
|
|
{
|
|
TRACE("Failed to decode session key\n");
|
|
}
|
|
TRACE("Session key is %s\n", debugstr_a(buffer+3));
|
|
helper->valid_session_key = TRUE;
|
|
if(!helper->session_key)
|
|
helper->session_key = HeapAlloc(GetProcessHeap(), 0, 16);
|
|
if(!helper->session_key)
|
|
{
|
|
TRACE("Failed to allocate memory for session key\n");
|
|
ret = SEC_E_INTERNAL_ERROR;
|
|
goto asc_end;
|
|
}
|
|
memcpy(helper->session_key, bin, 16);
|
|
}
|
|
}
|
|
helper->crypt.ntlm.a4i = SECUR32_arc4Alloc();
|
|
SECUR32_arc4Init(helper->crypt.ntlm.a4i, helper->session_key, 16);
|
|
helper->crypt.ntlm.seq_num = 0l;
|
|
}
|
|
|
|
phNewContext->dwUpper = ctxt_attr;
|
|
phNewContext->dwLower = (ULONG_PTR)helper;
|
|
|
|
asc_end:
|
|
HeapFree(GetProcessHeap(), 0, want_flags);
|
|
HeapFree(GetProcessHeap(), 0, buffer);
|
|
HeapFree(GetProcessHeap(), 0, bin);
|
|
return ret;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* CompleteAuthToken
|
|
*/
|
|
static SECURITY_STATUS SEC_ENTRY ntlm_CompleteAuthToken(PCtxtHandle phContext,
|
|
PSecBufferDesc pToken)
|
|
{
|
|
/* We never need to call CompleteAuthToken anyway */
|
|
TRACE("%p %p\n", phContext, pToken);
|
|
if (!phContext)
|
|
return SEC_E_INVALID_HANDLE;
|
|
|
|
return SEC_E_OK;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* DeleteSecurityContext
|
|
*/
|
|
static SECURITY_STATUS SEC_ENTRY ntlm_DeleteSecurityContext(PCtxtHandle phContext)
|
|
{
|
|
SECURITY_STATUS ret;
|
|
|
|
TRACE("%p\n", phContext);
|
|
if (phContext)
|
|
{
|
|
phContext->dwUpper = 0;
|
|
phContext->dwLower = 0;
|
|
ret = SEC_E_OK;
|
|
}
|
|
else
|
|
{
|
|
ret = SEC_E_INVALID_HANDLE;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* QueryContextAttributesW
|
|
*/
|
|
static SECURITY_STATUS SEC_ENTRY ntlm_QueryContextAttributesW(PCtxtHandle phContext,
|
|
unsigned long ulAttribute, void *pBuffer)
|
|
{
|
|
TRACE("%p %ld %p\n", phContext, ulAttribute, pBuffer);
|
|
if (!phContext)
|
|
return SEC_E_INVALID_HANDLE;
|
|
|
|
switch(ulAttribute)
|
|
{
|
|
#define _x(x) case (x) : FIXME(#x" stub\n"); break
|
|
_x(SECPKG_ATTR_ACCESS_TOKEN);
|
|
_x(SECPKG_ATTR_AUTHORITY);
|
|
_x(SECPKG_ATTR_DCE_INFO);
|
|
case SECPKG_ATTR_FLAGS:
|
|
{
|
|
PSecPkgContext_Flags spcf = (PSecPkgContext_Flags)pBuffer;
|
|
PNegoHelper helper = (PNegoHelper)phContext->dwLower;
|
|
|
|
spcf->Flags = 0;
|
|
if(helper->neg_flags & NTLMSSP_NEGOTIATE_SIGN)
|
|
spcf->Flags |= ISC_RET_INTEGRITY;
|
|
if(helper->neg_flags & NTLMSSP_NEGOTIATE_SEAL)
|
|
spcf->Flags |= ISC_RET_CONFIDENTIALITY;
|
|
return SEC_E_OK;
|
|
}
|
|
_x(SECPKG_ATTR_KEY_INFO);
|
|
_x(SECPKG_ATTR_LIFESPAN);
|
|
_x(SECPKG_ATTR_NAMES);
|
|
_x(SECPKG_ATTR_NATIVE_NAMES);
|
|
_x(SECPKG_ATTR_NEGOTIATION_INFO);
|
|
_x(SECPKG_ATTR_PACKAGE_INFO);
|
|
_x(SECPKG_ATTR_PASSWORD_EXPIRY);
|
|
_x(SECPKG_ATTR_SESSION_KEY);
|
|
case SECPKG_ATTR_SIZES:
|
|
{
|
|
PSecPkgContext_Sizes spcs = (PSecPkgContext_Sizes)pBuffer;
|
|
spcs->cbMaxToken = NTLM_MAX_BUF;
|
|
spcs->cbMaxSignature = 16;
|
|
spcs->cbBlockSize = 0;
|
|
spcs->cbSecurityTrailer = 16;
|
|
return SEC_E_OK;
|
|
}
|
|
_x(SECPKG_ATTR_STREAM_SIZES);
|
|
_x(SECPKG_ATTR_TARGET_INFORMATION);
|
|
#undef _x
|
|
default:
|
|
TRACE("Unknown value %ld passed for ulAttribute\n", ulAttribute);
|
|
}
|
|
|
|
return SEC_E_UNSUPPORTED_FUNCTION;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* QueryContextAttributesA
|
|
*/
|
|
static SECURITY_STATUS SEC_ENTRY ntlm_QueryContextAttributesA(PCtxtHandle phContext,
|
|
unsigned long ulAttribute, void *pBuffer)
|
|
{
|
|
return ntlm_QueryContextAttributesW(phContext, ulAttribute, pBuffer);
|
|
}
|
|
|
|
/***********************************************************************
|
|
* ImpersonateSecurityContext
|
|
*/
|
|
static SECURITY_STATUS SEC_ENTRY ntlm_ImpersonateSecurityContext(PCtxtHandle phContext)
|
|
{
|
|
SECURITY_STATUS ret;
|
|
|
|
TRACE("%p\n", phContext);
|
|
if (phContext)
|
|
{
|
|
ret = SEC_E_UNSUPPORTED_FUNCTION;
|
|
}
|
|
else
|
|
{
|
|
ret = SEC_E_INVALID_HANDLE;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* RevertSecurityContext
|
|
*/
|
|
static SECURITY_STATUS SEC_ENTRY ntlm_RevertSecurityContext(PCtxtHandle phContext)
|
|
{
|
|
SECURITY_STATUS ret;
|
|
|
|
TRACE("%p\n", phContext);
|
|
if (phContext)
|
|
{
|
|
ret = SEC_E_UNSUPPORTED_FUNCTION;
|
|
}
|
|
else
|
|
{
|
|
ret = SEC_E_INVALID_HANDLE;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* MakeSignature
|
|
*/
|
|
static SECURITY_STATUS SEC_ENTRY ntlm_MakeSignature(PCtxtHandle phContext, ULONG fQOP,
|
|
PSecBufferDesc pMessage, ULONG MessageSeqNo)
|
|
{
|
|
PNegoHelper helper;
|
|
ULONG sign_version = 1;
|
|
|
|
TRACE("%p %ld %p %ld\n", phContext, fQOP, pMessage, MessageSeqNo);
|
|
if (!phContext)
|
|
return SEC_E_INVALID_HANDLE;
|
|
|
|
if(fQOP)
|
|
FIXME("Ignoring fQOP 0x%08lx", fQOP);
|
|
|
|
if(MessageSeqNo)
|
|
FIXME("Ignoring MessageSeqNo");
|
|
|
|
if(!pMessage || !pMessage->pBuffers || pMessage->cBuffers < 2 ||
|
|
pMessage->pBuffers[0].BufferType != SECBUFFER_TOKEN ||
|
|
!pMessage->pBuffers[0].pvBuffer)
|
|
return SEC_E_INVALID_TOKEN;
|
|
|
|
if(pMessage->pBuffers[0].cbBuffer < 16)
|
|
return SEC_E_BUFFER_TOO_SMALL;
|
|
|
|
helper = (PNegoHelper)phContext->dwLower;
|
|
TRACE("Negotiated flags are: 0x%08lx\n", helper->neg_flags);
|
|
if(helper->neg_flags & NTLMSSP_NEGOTIATE_NTLM2)
|
|
{
|
|
FIXME("Can't handle NTLMv2 signing yet. Aborting.\n");
|
|
return SEC_E_UNSUPPORTED_FUNCTION;
|
|
}
|
|
if(helper->neg_flags & NTLMSSP_NEGOTIATE_SIGN)
|
|
{
|
|
PBYTE sig = pMessage->pBuffers[0].pvBuffer;
|
|
ULONG crc = ComputeCrc32(pMessage->pBuffers[1].pvBuffer,
|
|
pMessage->pBuffers[1].cbBuffer);
|
|
|
|
sig[ 0] = (sign_version >> 0) & 0xff;
|
|
sig[ 1] = (sign_version >> 8) & 0xff;
|
|
sig[ 2] = (sign_version >> 16) & 0xff;
|
|
sig[ 3] = (sign_version >> 24) & 0xff;
|
|
memset(sig+4, 0, 4);
|
|
sig[ 8] = (crc >> 0) & 0xff;
|
|
sig[ 9] = (crc >> 8) & 0xff;
|
|
sig[10] = (crc >> 16) & 0xff;
|
|
sig[11] = (crc >> 24) & 0xff;
|
|
sig[12] = (helper->crypt.ntlm.seq_num >> 0) & 0xff;
|
|
sig[13] = (helper->crypt.ntlm.seq_num >> 8) & 0xff;
|
|
sig[14] = (helper->crypt.ntlm.seq_num >> 16) & 0xff;
|
|
sig[15] = (helper->crypt.ntlm.seq_num >> 24) & 0xff;
|
|
|
|
++(helper->crypt.ntlm.seq_num);
|
|
|
|
SECUR32_arc4Process(helper->crypt.ntlm.a4i, sig+4, 12);
|
|
return SEC_E_OK;
|
|
}
|
|
|
|
if(helper->neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCHANGE)
|
|
{
|
|
FIXME("Can't handle encrypted session key yet. Aborting.\n");
|
|
return SEC_E_UNSUPPORTED_FUNCTION;
|
|
}
|
|
|
|
if(helper->neg_flags & NTLMSSP_NEGOTIATE_ALWAYS_SIGN || helper->neg_flags == 0)
|
|
{
|
|
TRACE("Generating dummy signature\n");
|
|
/* A dummy signature is 0x01 followed by 15 bytes of 0x00 */
|
|
memset(pMessage->pBuffers[0].pvBuffer, 0, 16);
|
|
memset(pMessage->pBuffers[0].pvBuffer, 0x01, 1);
|
|
pMessage->pBuffers[0].cbBuffer = 16;
|
|
return SEC_E_OK;
|
|
}
|
|
|
|
return SEC_E_UNSUPPORTED_FUNCTION;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* VerifySignature
|
|
*/
|
|
static SECURITY_STATUS SEC_ENTRY ntlm_VerifySignature(PCtxtHandle phContext,
|
|
PSecBufferDesc pMessage, ULONG MessageSeqNo, PULONG pfQOP)
|
|
{
|
|
PNegoHelper helper;
|
|
ULONG fQOP = 0;
|
|
|
|
TRACE("%p %p %ld %p\n", phContext, pMessage, MessageSeqNo, pfQOP);
|
|
if(!phContext)
|
|
return SEC_E_INVALID_HANDLE;
|
|
|
|
if(!pMessage || !pMessage->pBuffers || pMessage->cBuffers < 2 ||
|
|
pMessage->pBuffers[0].BufferType != SECBUFFER_TOKEN ||
|
|
!pMessage->pBuffers[0].pvBuffer)
|
|
return SEC_E_INVALID_TOKEN;
|
|
|
|
if(pMessage->pBuffers[0].cbBuffer < 16)
|
|
return SEC_E_BUFFER_TOO_SMALL;
|
|
|
|
if(MessageSeqNo)
|
|
FIXME("Ignoring MessageSeqNo\n");
|
|
|
|
helper = (PNegoHelper)phContext->dwLower;
|
|
TRACE("Negotiated flags: 0x%08lx\n", helper->neg_flags);
|
|
|
|
if(helper->neg_flags & NTLMSSP_NEGOTIATE_NTLM2)
|
|
{
|
|
FIXME("Can't handle NTLMv2 signing yet. Aborting.\n");
|
|
return SEC_E_UNSUPPORTED_FUNCTION;
|
|
}
|
|
|
|
if(helper->neg_flags & NTLMSSP_NEGOTIATE_SIGN)
|
|
{
|
|
SecBufferDesc local_desc;
|
|
SecBuffer local_buff[2];
|
|
BYTE local_sig[16];
|
|
|
|
local_desc.ulVersion = SECBUFFER_VERSION;
|
|
local_desc.cBuffers = 2;
|
|
local_desc.pBuffers = local_buff;
|
|
local_buff[0].BufferType = SECBUFFER_TOKEN;
|
|
local_buff[0].cbBuffer = 16;
|
|
local_buff[0].pvBuffer = local_sig;
|
|
local_buff[1].BufferType = SECBUFFER_DATA;
|
|
local_buff[1].cbBuffer = pMessage->pBuffers[1].cbBuffer;
|
|
local_buff[1].pvBuffer = pMessage->pBuffers[1].pvBuffer;
|
|
|
|
ntlm_MakeSignature(phContext, fQOP, &local_desc, MessageSeqNo);
|
|
|
|
if(memcmp(((PBYTE)local_buff[0].pvBuffer) + 8, ((PBYTE)pMessage->pBuffers[0].pvBuffer) + 8, 8))
|
|
return SEC_E_MESSAGE_ALTERED;
|
|
|
|
return SEC_E_OK;
|
|
}
|
|
|
|
if(helper->neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCHANGE)
|
|
{
|
|
FIXME("Can't handle encrypted session keys yet. Aborting.\n");
|
|
return SEC_E_UNSUPPORTED_FUNCTION;
|
|
}
|
|
|
|
if(helper->neg_flags & NTLMSSP_NEGOTIATE_ALWAYS_SIGN || helper->neg_flags == 0)
|
|
{
|
|
const BYTE dummy_sig[] = {0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
|
|
TRACE("Assuming dummy signature.\n");
|
|
if(memcmp(pMessage->pBuffers[0].pvBuffer, dummy_sig, sizeof(dummy_sig)) != 0)
|
|
{
|
|
TRACE("Failed to verify the packet signature. Not a dummy signature?\n");
|
|
return SEC_E_MESSAGE_ALTERED;
|
|
}
|
|
else
|
|
{
|
|
pfQOP = &fQOP;
|
|
return SEC_E_OK;
|
|
}
|
|
}
|
|
|
|
return SEC_E_UNSUPPORTED_FUNCTION;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* FreeCredentialsHandle
|
|
*/
|
|
static SECURITY_STATUS SEC_ENTRY ntlm_FreeCredentialsHandle(
|
|
PCredHandle phCredential)
|
|
{
|
|
SECURITY_STATUS ret;
|
|
|
|
if(phCredential){
|
|
PNegoHelper helper = (PNegoHelper) phCredential->dwLower;
|
|
phCredential->dwUpper = 0;
|
|
phCredential->dwLower = 0;
|
|
HeapFree(GetProcessHeap(), 0, helper->session_key);
|
|
cleanup_helper(helper);
|
|
ret = SEC_E_OK;
|
|
}
|
|
else
|
|
ret = SEC_E_OK;
|
|
|
|
return ret;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* EncryptMessage
|
|
*/
|
|
static SECURITY_STATUS SEC_ENTRY ntlm_EncryptMessage(PCtxtHandle phContext,
|
|
ULONG fQOP, PSecBufferDesc pMessage, ULONG MessageSeqNo)
|
|
{
|
|
PNegoHelper helper;
|
|
TRACE("(%p %ld %p %ld)\n", phContext, fQOP, pMessage, MessageSeqNo);
|
|
|
|
if(!phContext)
|
|
return SEC_E_INVALID_HANDLE;
|
|
|
|
if(fQOP)
|
|
FIXME("Ignoring fQOP\n");
|
|
|
|
if(MessageSeqNo)
|
|
FIXME("Ignoring MessageSeqNo\n");
|
|
|
|
if(!pMessage || !pMessage->pBuffers || pMessage->cBuffers < 2 ||
|
|
pMessage->pBuffers[0].BufferType != SECBUFFER_TOKEN ||
|
|
!pMessage->pBuffers[0].pvBuffer)
|
|
return SEC_E_INVALID_TOKEN;
|
|
|
|
if(pMessage->pBuffers[0].cbBuffer < 16)
|
|
return SEC_E_BUFFER_TOO_SMALL;
|
|
|
|
helper = (PNegoHelper) phContext->dwLower;
|
|
|
|
if(helper->neg_flags & NTLMSSP_NEGOTIATE_NTLM2)
|
|
{
|
|
FIXME("Can't handle NTLMv2 encryption yet, aborting\n");
|
|
return SEC_E_UNSUPPORTED_FUNCTION;
|
|
}
|
|
else
|
|
{
|
|
PBYTE sig = pMessage->pBuffers[0].pvBuffer;
|
|
ULONG crc = ComputeCrc32(pMessage->pBuffers[1].pvBuffer,
|
|
pMessage->pBuffers[1].cbBuffer);
|
|
ULONG sign_version = 1l;
|
|
|
|
sig[ 0] = (sign_version >> 0) & 0xff;
|
|
sig[ 1] = (sign_version >> 8) & 0xff;
|
|
sig[ 2] = (sign_version >> 16) & 0xff;
|
|
sig[ 3] = (sign_version >> 24) & 0xff;
|
|
memset(sig+4, 0, 4);
|
|
sig[ 8] = (crc >> 0) & 0xff;
|
|
sig[ 9] = (crc >> 8) & 0xff;
|
|
sig[10] = (crc >> 16) & 0xff;
|
|
sig[11] = (crc >> 24) & 0xff;
|
|
sig[12] = (helper->crypt.ntlm.seq_num >> 0) & 0xff;
|
|
sig[13] = (helper->crypt.ntlm.seq_num >> 8) & 0xff;
|
|
sig[14] = (helper->crypt.ntlm.seq_num >> 16) & 0xff;
|
|
sig[15] = (helper->crypt.ntlm.seq_num >> 24) & 0xff;
|
|
|
|
SECUR32_arc4Process(helper->crypt.ntlm.a4i, pMessage->pBuffers[1].pvBuffer,
|
|
pMessage->pBuffers[1].cbBuffer);
|
|
SECUR32_arc4Process(helper->crypt.ntlm.a4i, sig+4, 12);
|
|
|
|
if(helper->neg_flags & NTLMSSP_NEGOTIATE_ALWAYS_SIGN || helper->neg_flags == 0)
|
|
memset(sig+4, 0, 4);
|
|
|
|
++(helper->crypt.ntlm.seq_num);
|
|
|
|
}
|
|
|
|
return SEC_E_OK;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* DecryptMessage
|
|
*/
|
|
static SECURITY_STATUS SEC_ENTRY ntlm_DecryptMessage(PCtxtHandle phContext,
|
|
PSecBufferDesc pMessage, ULONG MessageSeqNo, PULONG pfQOP)
|
|
{
|
|
SECURITY_STATUS ret;
|
|
ULONG ntlmssp_flags_save;
|
|
PNegoHelper helper;
|
|
TRACE("(%p %p %ld %p)\n", phContext, pMessage, MessageSeqNo, pfQOP);
|
|
|
|
if(!phContext)
|
|
return SEC_E_INVALID_HANDLE;
|
|
|
|
if(MessageSeqNo)
|
|
FIXME("Ignoring MessageSeqNo\n");
|
|
|
|
if(!pMessage || !pMessage->pBuffers || pMessage->cBuffers < 2 ||
|
|
pMessage->pBuffers[0].BufferType != SECBUFFER_TOKEN ||
|
|
!pMessage->pBuffers[0].pvBuffer)
|
|
return SEC_E_INVALID_TOKEN;
|
|
|
|
if(pMessage->pBuffers[0].cbBuffer < 16)
|
|
return SEC_E_BUFFER_TOO_SMALL;
|
|
|
|
helper = (PNegoHelper) phContext->dwLower;
|
|
|
|
if(helper->neg_flags & NTLMSSP_NEGOTIATE_NTLM2)
|
|
{
|
|
FIXME("Can't handle NTLMv2 encryption yet, aborting\n");
|
|
return SEC_E_UNSUPPORTED_FUNCTION;
|
|
}
|
|
else
|
|
{
|
|
SECUR32_arc4Process(helper->crypt.ntlm.a4i,
|
|
pMessage->pBuffers[1].pvBuffer, pMessage->pBuffers[1].cbBuffer);
|
|
}
|
|
|
|
/* Make sure we use a session key for the signature check, EncryptMessage
|
|
* always does that, even in the dummy case */
|
|
ntlmssp_flags_save = helper->neg_flags;
|
|
|
|
helper->neg_flags |= NTLMSSP_NEGOTIATE_SIGN;
|
|
ret = ntlm_VerifySignature(phContext, pMessage, MessageSeqNo, pfQOP);
|
|
|
|
helper->neg_flags = ntlmssp_flags_save;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static SecurityFunctionTableA ntlmTableA = {
|
|
1,
|
|
NULL, /* EnumerateSecurityPackagesA */
|
|
ntlm_QueryCredentialsAttributesA, /* QueryCredentialsAttributesA */
|
|
ntlm_AcquireCredentialsHandleA, /* AcquireCredentialsHandleA */
|
|
ntlm_FreeCredentialsHandle, /* FreeCredentialsHandle */
|
|
NULL, /* Reserved2 */
|
|
ntlm_InitializeSecurityContextA, /* InitializeSecurityContextA */
|
|
ntlm_AcceptSecurityContext, /* AcceptSecurityContext */
|
|
ntlm_CompleteAuthToken, /* CompleteAuthToken */
|
|
ntlm_DeleteSecurityContext, /* DeleteSecurityContext */
|
|
NULL, /* ApplyControlToken */
|
|
ntlm_QueryContextAttributesA, /* QueryContextAttributesA */
|
|
ntlm_ImpersonateSecurityContext, /* ImpersonateSecurityContext */
|
|
ntlm_RevertSecurityContext, /* RevertSecurityContext */
|
|
ntlm_MakeSignature, /* MakeSignature */
|
|
ntlm_VerifySignature, /* VerifySignature */
|
|
FreeContextBuffer, /* FreeContextBuffer */
|
|
NULL, /* QuerySecurityPackageInfoA */
|
|
NULL, /* Reserved3 */
|
|
NULL, /* Reserved4 */
|
|
NULL, /* ExportSecurityContext */
|
|
NULL, /* ImportSecurityContextA */
|
|
NULL, /* AddCredentialsA */
|
|
NULL, /* Reserved8 */
|
|
NULL, /* QuerySecurityContextToken */
|
|
ntlm_EncryptMessage, /* EncryptMessage */
|
|
ntlm_DecryptMessage, /* DecryptMessage */
|
|
NULL, /* SetContextAttributesA */
|
|
};
|
|
|
|
static SecurityFunctionTableW ntlmTableW = {
|
|
1,
|
|
NULL, /* EnumerateSecurityPackagesW */
|
|
ntlm_QueryCredentialsAttributesW, /* QueryCredentialsAttributesW */
|
|
ntlm_AcquireCredentialsHandleW, /* AcquireCredentialsHandleW */
|
|
ntlm_FreeCredentialsHandle, /* FreeCredentialsHandle */
|
|
NULL, /* Reserved2 */
|
|
ntlm_InitializeSecurityContextW, /* InitializeSecurityContextW */
|
|
ntlm_AcceptSecurityContext, /* AcceptSecurityContext */
|
|
ntlm_CompleteAuthToken, /* CompleteAuthToken */
|
|
ntlm_DeleteSecurityContext, /* DeleteSecurityContext */
|
|
NULL, /* ApplyControlToken */
|
|
ntlm_QueryContextAttributesW, /* QueryContextAttributesW */
|
|
ntlm_ImpersonateSecurityContext, /* ImpersonateSecurityContext */
|
|
ntlm_RevertSecurityContext, /* RevertSecurityContext */
|
|
ntlm_MakeSignature, /* MakeSignature */
|
|
ntlm_VerifySignature, /* VerifySignature */
|
|
FreeContextBuffer, /* FreeContextBuffer */
|
|
NULL, /* QuerySecurityPackageInfoW */
|
|
NULL, /* Reserved3 */
|
|
NULL, /* Reserved4 */
|
|
NULL, /* ExportSecurityContext */
|
|
NULL, /* ImportSecurityContextW */
|
|
NULL, /* AddCredentialsW */
|
|
NULL, /* Reserved8 */
|
|
NULL, /* QuerySecurityContextToken */
|
|
ntlm_EncryptMessage, /* EncryptMessage */
|
|
ntlm_DecryptMessage, /* DecryptMessage */
|
|
NULL, /* SetContextAttributesW */
|
|
};
|
|
|
|
#define NTLM_COMMENT \
|
|
{ 'N', 'T', 'L', 'M', ' ', \
|
|
'S', 'e', 'c', 'u', 'r', 'i', 't', 'y', ' ', \
|
|
'P', 'a', 'c', 'k', 'a', 'g', 'e', 0}
|
|
|
|
static CHAR ntlm_comment_A[] = NTLM_COMMENT;
|
|
static WCHAR ntlm_comment_W[] = NTLM_COMMENT;
|
|
|
|
#define NTLM_NAME {'N', 'T', 'L', 'M', 0}
|
|
|
|
static char ntlm_name_A[] = NTLM_NAME;
|
|
static WCHAR ntlm_name_W[] = NTLM_NAME;
|
|
|
|
/* According to Windows, NTLM has the following capabilities. */
|
|
#define CAPS ( \
|
|
SECPKG_FLAG_INTEGRITY | \
|
|
SECPKG_FLAG_PRIVACY | \
|
|
SECPKG_FLAG_TOKEN_ONLY | \
|
|
SECPKG_FLAG_CONNECTION | \
|
|
SECPKG_FLAG_MULTI_REQUIRED | \
|
|
SECPKG_FLAG_IMPERSONATION | \
|
|
SECPKG_FLAG_ACCEPT_WIN32_NAME | \
|
|
SECPKG_FLAG_READONLY_WITH_CHECKSUM)
|
|
|
|
static const SecPkgInfoW infoW = {
|
|
CAPS,
|
|
1,
|
|
RPC_C_AUTHN_WINNT,
|
|
NTLM_MAX_BUF,
|
|
ntlm_name_W,
|
|
ntlm_comment_W
|
|
};
|
|
|
|
static const SecPkgInfoA infoA = {
|
|
CAPS,
|
|
1,
|
|
RPC_C_AUTHN_WINNT,
|
|
NTLM_MAX_BUF,
|
|
ntlm_name_A,
|
|
ntlm_comment_A
|
|
};
|
|
|
|
void SECUR32_initNTLMSP(void)
|
|
{
|
|
SECURITY_STATUS ret;
|
|
PNegoHelper helper;
|
|
static CHAR ntlm_auth[] = "ntlm_auth",
|
|
version[] = "--version";
|
|
|
|
SEC_CHAR *args[] = {
|
|
ntlm_auth,
|
|
version,
|
|
NULL };
|
|
|
|
if((ret = fork_helper(&helper, "ntlm_auth", args)) != SEC_E_OK)
|
|
{
|
|
/* Cheat and allocate a helper anyway, so cleanup later will work. */
|
|
helper = HeapAlloc(GetProcessHeap(),0, sizeof(PNegoHelper));
|
|
helper->version = -1;
|
|
}
|
|
else
|
|
check_version(helper);
|
|
|
|
if(helper->version > 2)
|
|
{
|
|
SecureProvider *provider = SECUR32_addProvider(&ntlmTableA, &ntlmTableW, NULL);
|
|
SECUR32_addPackages(provider, 1L, &infoA, &infoW);
|
|
}
|
|
else
|
|
{
|
|
ERR("ntlm_auth was not found or is outdated. "
|
|
"Make sure that ntlm_auth >= 3.x is in your path.\n");
|
|
}
|
|
cleanup_helper(helper);
|
|
}
|