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wine/dlls/msv1_0/main.c
Hans Leidekker 9b11f6fd7d msv1_0: Build without -DWINE_NO_LONG_TYPES. 
Signed-off-by: Hans Leidekker <hans@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
2022-02-11 10:57:17 +01:00

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/*
* Copyright 2005, 2006 Kai Blin
* Copyright 2021 Hans Leidekker for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#include <stdlib.h>
#include <wchar.h>
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "windef.h"
#include "winbase.h"
#include "winternl.h"
#include "sspi.h"
#include "ntsecapi.h"
#include "ntsecpkg.h"
#include "rpc.h"
#include "wincred.h"
#include "lmwksta.h"
#include "lmapibuf.h"
#include "lmerr.h"
#include "wine/debug.h"
#include "unixlib.h"
WINE_DEFAULT_DEBUG_CHANNEL(ntlm);
static ULONG ntlm_package_id;
static LSA_DISPATCH_TABLE lsa_dispatch;
static unixlib_handle_t ntlm_handle;
static NTSTATUS ntlm_check_version(void)
{
return __wine_unix_call( ntlm_handle, unix_check_version, NULL );
}
static void ntlm_cleanup( struct ntlm_ctx *ctx )
{
__wine_unix_call( ntlm_handle, unix_cleanup, ctx );
}
static NTSTATUS ntlm_chat( struct ntlm_ctx *ctx, char *buf, unsigned int buflen, unsigned int *retlen )
{
struct chat_params params = { ctx, buf, buflen, retlen };
return __wine_unix_call( ntlm_handle, unix_chat, &params );
}
static NTSTATUS ntlm_fork( struct ntlm_ctx *ctx, char **argv )
{
struct fork_params params = { ctx, argv };
return __wine_unix_call( ntlm_handle, unix_fork, &params );
}
#define NTLM_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_NEGOTIABLE \
| SECPKG_FLAG_LOGON \
| SECPKG_FLAG_RESTRICTED_TOKENS )
#define NTLM_MAX_BUF 1904
static const SecPkgInfoW ntlm_package_info =
{
NTLM_CAPS,
1,
RPC_C_AUTHN_WINNT,
NTLM_MAX_BUF,
(SEC_WCHAR *)L"NTLM",
(SEC_WCHAR *)L"NTLM Security Package"
};
static inline const char *debugstr_as( const STRING *str )
{
if (!str) return "<null>";
return debugstr_an( str->Buffer, str->Length );
}
static inline const char *debugstr_us( const UNICODE_STRING *str )
{
if (!str) return "<null>";
return debugstr_wn( str->Buffer, str->Length / sizeof(WCHAR) );
}
static NTSTATUS NTAPI ntlm_LsaApInitializePackage( ULONG package_id, LSA_DISPATCH_TABLE *dispatch,
LSA_STRING *database, LSA_STRING *confidentiality,
LSA_STRING **package_name )
{
LSA_STRING *str;
char *ptr;
TRACE( "%#lx, %p, %s, %s, %p\n", package_id, dispatch, debugstr_as(database), debugstr_as(confidentiality),
package_name );
if (ntlm_check_version())
{
ERR( "no NTLM support, expect problems\n" );
return STATUS_UNSUCCESSFUL;
}
if (!(str = dispatch->AllocateLsaHeap( sizeof(*str) + sizeof("NTLM" )))) return STATUS_NO_MEMORY;
ptr = (char *)(str + 1);
memcpy( ptr, "NTLM", sizeof("NTLM") );
RtlInitString( str, ptr );
ntlm_package_id = package_id;
lsa_dispatch = *dispatch;
*package_name = str;
return STATUS_SUCCESS;
}
static NTSTATUS NTAPI ntlm_SpInitialize( ULONG_PTR package_id, SECPKG_PARAMETERS *params,
LSA_SECPKG_FUNCTION_TABLE *lsa_function_table )
{
TRACE( "%#Ix, %p, %p\n", package_id, params, lsa_function_table );
if (ntlm_check_version())
{
ERR( "no NTLM support, expect problems\n" );
return STATUS_UNSUCCESSFUL;
}
return STATUS_SUCCESS;
}
static NTSTATUS NTAPI ntlm_SpGetInfo( SecPkgInfoW *info )
{
TRACE( "%p\n", info );
*info = ntlm_package_info;
return STATUS_SUCCESS;
}
static char *get_username_arg( const WCHAR *user, int user_len )
{
static const char arg[] = "--username=";
int len = sizeof(arg);
char *ret;
len += WideCharToMultiByte( CP_UNIXCP, WC_NO_BEST_FIT_CHARS, user, user_len, NULL, 0, NULL, NULL );
if (!(ret = malloc( len ))) return NULL;
memcpy( ret, arg, sizeof(arg) - 1 );
WideCharToMultiByte( CP_UNIXCP, WC_NO_BEST_FIT_CHARS, user, user_len, ret + sizeof(arg) - 1,
len - sizeof(arg) + 1, NULL, NULL );
ret[len - 1] = 0;
return ret;
}
static char *get_domain_arg( const WCHAR *domain, int domain_len )
{
static const char arg[] = "--domain=";
int len = sizeof(arg);
char *ret;
len += WideCharToMultiByte( CP_UNIXCP, WC_NO_BEST_FIT_CHARS, domain, domain_len, NULL, 0, NULL, NULL );
if (!(ret = malloc( len ))) return NULL;
memcpy( ret, arg, sizeof(arg) - 1 );
WideCharToMultiByte( CP_UNIXCP, WC_NO_BEST_FIT_CHARS, domain, domain_len, ret + sizeof(arg) - 1,
len - sizeof(arg) + 1, NULL, NULL );
ret[len - 1] = 0;
return ret;
}
#define WINE_NO_CACHED_CREDENTIALS 0x10000000
static NTSTATUS NTAPI ntlm_SpAcquireCredentialsHandle( UNICODE_STRING *principal, ULONG cred_use, LUID *logon_id,
void *auth_data, void *get_key_fn, void *get_key_arg,
LSA_SEC_HANDLE *handle, TimeStamp *expiry )
{
SECURITY_STATUS status = SEC_E_INSUFFICIENT_MEMORY;
struct ntlm_cred *cred = NULL;
WCHAR *domain = NULL, *user = NULL, *password = NULL;
SEC_WINNT_AUTH_IDENTITY_W *id = NULL;
TRACE( "%s, %#lx, %p, %p, %p, %p, %p, %p\n", debugstr_us(principal), cred_use, logon_id, auth_data,
get_key_fn, get_key_arg, cred, expiry );
switch (cred_use & ~SECPKG_CRED_RESERVED)
{
case SECPKG_CRED_INBOUND:
if (!(cred = malloc( sizeof(*cred) ))) return SEC_E_INSUFFICIENT_MEMORY;
cred->mode = MODE_SERVER;
cred->username_arg = NULL;
cred->domain_arg = NULL;
cred->password = NULL;
cred->password_len = 0;
cred->no_cached_credentials = 0;
*handle = (LSA_SEC_HANDLE)cred;
status = SEC_E_OK;
break;
case SECPKG_CRED_OUTBOUND:
if (!(cred = malloc( sizeof(*cred) ))) return SEC_E_INSUFFICIENT_MEMORY;
cred->mode = MODE_CLIENT;
cred->username_arg = NULL;
cred->domain_arg = NULL;
cred->password = NULL;
cred->password_len = 0;
cred->no_cached_credentials = (cred_use & WINE_NO_CACHED_CREDENTIALS);
if ((id = auth_data))
{
int domain_len = 0, user_len = 0, password_len = 0;
if (id->Flags & SEC_WINNT_AUTH_IDENTITY_ANSI)
{
if (id->DomainLength)
{
domain_len = MultiByteToWideChar( CP_ACP, 0, (char *)id->Domain, id->DomainLength, NULL, 0 );
if (!(domain = malloc( sizeof(WCHAR) * domain_len ))) goto done;
MultiByteToWideChar( CP_ACP, 0, (char *)id->Domain, id->DomainLength, domain, domain_len );
}
if (id->UserLength)
{
user_len = MultiByteToWideChar( CP_ACP, 0, (char *)id->User, id->UserLength, NULL, 0 );
if (!(user = malloc( sizeof(WCHAR) * user_len ))) goto done;
MultiByteToWideChar( CP_ACP, 0, (char *)id->User, id->UserLength, user, user_len );
}
if (id->PasswordLength)
{
password_len = MultiByteToWideChar( CP_ACP, 0,(char *)id->Password, id->PasswordLength, NULL, 0 );
if (!(password = malloc( sizeof(WCHAR) * password_len ))) goto done;
MultiByteToWideChar( CP_ACP, 0, (char *)id->Password, id->PasswordLength, password, password_len );
}
}
else
{
domain = id->Domain;
domain_len = id->DomainLength;
user = id->User;
user_len = id->UserLength;
password = id->Password;
password_len = id->PasswordLength;
}
TRACE( "username is %s\n", debugstr_wn(user, user_len) );
TRACE( "domain name is %s\n", debugstr_wn(domain, domain_len) );
cred->username_arg = get_username_arg( user, user_len );
cred->domain_arg = get_domain_arg( domain, domain_len );
if (password_len)
{
cred->password_len = WideCharToMultiByte( CP_UNIXCP, WC_NO_BEST_FIT_CHARS, password, password_len,
NULL, 0, NULL, NULL );
if (!(cred->password = malloc( cred->password_len ))) goto done;
WideCharToMultiByte( CP_UNIXCP, WC_NO_BEST_FIT_CHARS, password, password_len, cred->password,
cred->password_len, NULL, NULL );
}
}
*handle = (LSA_SEC_HANDLE)cred;
status = SEC_E_OK;
break;
case SECPKG_CRED_BOTH:
FIXME( "SECPKG_CRED_BOTH not supported\n" );
status = SEC_E_UNSUPPORTED_FUNCTION;
break;
default:
status = SEC_E_UNKNOWN_CREDENTIALS;
break;
}
done:
if (id && (id->Flags & SEC_WINNT_AUTH_IDENTITY_ANSI))
{
free( domain );
free( user );
free( password );
}
if (status != SEC_E_OK) free( cred );
return status;
}
static NTSTATUS NTAPI ntlm_SpFreeCredentialsHandle( LSA_SEC_HANDLE handle )
{
struct ntlm_cred *cred = (struct ntlm_cred *)handle;
TRACE( "%#Ix\n", handle );
if (!cred) return SEC_E_OK;
cred->mode = MODE_INVALID;
if (cred->password) memset( cred->password, 0, cred->password_len );
free( cred->password );
free( cred->username_arg );
free( cred->domain_arg );
free( cred );
return SEC_E_OK;
}
static BOOL get_cached_credential( const UNICODE_STRING *target, CREDENTIALW **cred )
{
const WCHAR *ptr, *host;
WCHAR *hostonly;
size_t len;
BOOL ret;
if (!target) return FALSE;
len = target->Length / sizeof(WCHAR);
if ((host = wmemchr( target->Buffer, '/', len )))
{
host++;
len -= host - target->Buffer;
if (!(ptr = wmemchr( host, ':', len ))) ptr = wmemchr( host, '/', len );
if (!ptr) ptr = host + len;
}
else
{
host = target->Buffer;
ptr = host + len;
}
if (!(hostonly = malloc( (ptr - host + 1) * sizeof(WCHAR) ))) return FALSE;
memcpy( hostonly, host, (ptr - host) * sizeof(WCHAR) );
hostonly[ptr - host] = 0;
ret = CredReadW( hostonly, CRED_TYPE_DOMAIN_PASSWORD, 0, cred );
free( hostonly );
return ret;
}
static UINT encode_base64( const char *bin, unsigned int len, char *base64 )
{
static const char base64enc[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
UINT n = 0, x;
while (len > 0)
{
/* first 6 bits, all from bin[0] */
base64[n++] = base64enc[(bin[0] & 0xfc) >> 2];
x = (bin[0] & 3) << 4;
/* next 6 bits, 2 from bin[0] and 4 from bin[1] */
if (len == 1)
{
base64[n++] = base64enc[x];
base64[n++] = '=';
base64[n++] = '=';
break;
}
base64[n++] = base64enc[x | ((bin[1] & 0xf0) >> 4)];
x = (bin[1] & 0x0f) << 2;
/* next 6 bits 4 from bin[1] and 2 from bin[2] */
if (len == 2)
{
base64[n++] = base64enc[x];
base64[n++] = '=';
break;
}
base64[n++] = base64enc[x | ((bin[2] & 0xc0) >> 6)];
/* last 6 bits, all from bin[2] */
base64[n++] = base64enc[bin[2] & 0x3f];
bin += 3;
len -= 3;
}
base64[n] = 0;
return n;
}
static inline char decode_char( char c )
{
if (c >= 'A' && c <= 'Z') return c - 'A';
if (c >= 'a' && c <= 'z') return c - 'a' + 26;
if (c >= '0' && c <= '9') return c - '0' + 52;
if (c == '+') return 62;
if (c == '/') return 63;
return 64;
}
static unsigned int decode_base64( const char *base64, unsigned int len, char *buf )
{
unsigned int i = 0;
char c0, c1, c2, c3;
const char *p = base64;
while (len > 4)
{
if ((c0 = decode_char( p[0] )) > 63) return 0;
if ((c1 = decode_char( p[1] )) > 63) return 0;
if ((c2 = decode_char( p[2] )) > 63) return 0;
if ((c3 = decode_char( p[3] )) > 63) return 0;
if (buf)
{
buf[i + 0] = (c0 << 2) | (c1 >> 4);
buf[i + 1] = (c1 << 4) | (c2 >> 2);
buf[i + 2] = (c2 << 6) | c3;
}
len -= 4;
i += 3;
p += 4;
}
if (p[2] == '=')
{
if ((c0 = decode_char( p[0] )) > 63) return 0;
if ((c1 = decode_char( p[1] )) > 63) return 0;
if (buf) buf[i] = (c0 << 2) | (c1 >> 4);
i++;
}
else if (p[3] == '=')
{
if ((c0 = decode_char( p[0] )) > 63) return 0;
if ((c1 = decode_char( p[1] )) > 63) return 0;
if ((c2 = decode_char( p[2] )) > 63) return 0;
if (buf)
{
buf[i + 0] = (c0 << 2) | (c1 >> 4);
buf[i + 1] = (c1 << 4) | (c2 >> 2);
}
i += 2;
}
else
{
if ((c0 = decode_char( p[0] )) > 63) return 0;
if ((c1 = decode_char( p[1] )) > 63) return 0;
if ((c2 = decode_char( p[2] )) > 63) return 0;
if ((c3 = decode_char( p[3] )) > 63) return 0;
if (buf)
{
buf[i + 0] = (c0 << 2) | (c1 >> 4);
buf[i + 1] = (c1 << 4) | (c2 >> 2);
buf[i + 2] = (c2 << 6) | c3;
}
i += 3;
}
return i;
}
struct md4_ctx
{
unsigned int buf[4];
unsigned int i[2];
unsigned char in[64];
unsigned char digest[16];
};
void WINAPI MD4Init( struct md4_ctx * );
void WINAPI MD4Update( struct md4_ctx *, const char *, unsigned int );
void WINAPI MD4Final( struct md4_ctx * );
static void create_ntlm1_session_key( const char *secret, unsigned int len, char *session_key )
{
struct md4_ctx ctx;
char hash[16];
MD4Init( &ctx );
MD4Update( &ctx, secret, len );
MD4Final( &ctx );
memcpy( hash, ctx.digest, 16 );
MD4Init( &ctx );
MD4Update( &ctx, hash, 16 );
MD4Final( &ctx );
memcpy( session_key, ctx.digest, 16 );
}
struct md5_ctx
{
unsigned int i[2];
unsigned int buf[4];
unsigned char in[64];
unsigned char digest[16];
};
void WINAPI MD5Init( struct md5_ctx * );
void WINAPI MD5Update( struct md5_ctx *, const char *, unsigned int );
void WINAPI MD5Final( struct md5_ctx * );
static void calc_ntlm2_subkey( const char *session_key, const char *magic, char *subkey )
{
struct md5_ctx ctx;
MD5Init( &ctx );
MD5Update( &ctx, session_key, 16 );
MD5Update( &ctx, magic, strlen(magic) + 1 );
MD5Final( &ctx );
memcpy( subkey, ctx.digest, 16 );
}
static const char client_to_server_sign_constant[] = "session key to client-to-server signing key magic constant";
static const char client_to_server_seal_constant[] = "session key to client-to-server sealing key magic constant";
static const char server_to_client_sign_constant[] = "session key to server-to-client signing key magic constant";
static const char server_to_client_seal_constant[] = "session key to server-to-client sealing key magic constant";
static void create_ntlm2_subkeys( struct ntlm_ctx *ctx )
{
if (ctx->mode == MODE_CLIENT)
{
calc_ntlm2_subkey( ctx->session_key, client_to_server_sign_constant, ctx->crypt.ntlm2.send_sign_key );
calc_ntlm2_subkey( ctx->session_key, client_to_server_seal_constant, ctx->crypt.ntlm2.send_seal_key );
calc_ntlm2_subkey( ctx->session_key, server_to_client_sign_constant, ctx->crypt.ntlm2.recv_sign_key );
calc_ntlm2_subkey( ctx->session_key, server_to_client_seal_constant, ctx->crypt.ntlm2.recv_seal_key );
}
else
{
calc_ntlm2_subkey( ctx->session_key, server_to_client_sign_constant, ctx->crypt.ntlm2.send_sign_key );
calc_ntlm2_subkey( ctx->session_key, server_to_client_seal_constant, ctx->crypt.ntlm2.send_seal_key );
calc_ntlm2_subkey( ctx->session_key, client_to_server_sign_constant, ctx->crypt.ntlm2.recv_sign_key );
calc_ntlm2_subkey( ctx->session_key, client_to_server_seal_constant, ctx->crypt.ntlm2.recv_seal_key );
}
}
/*
* The arc4 code is based on dlls/advapi32/crypt_arc4.c by Mike McCormack,
* which in turn is based on public domain code by Wei Dai
*/
static void arc4_init( struct arc4_info *info, const char *key, unsigned int len )
{
unsigned int key_idx = 0, state_idx = 0, i, a;
info->x = info->y = 0;
for (i = 0; i < 256; i++) info->state[i] = i;
for (i = 0; i < 256; i++)
{
a = info->state[i];
state_idx += key[key_idx] + a;
state_idx &= 0xff;
info->state[i] = info->state[state_idx];
info->state[state_idx] = a;
if (++key_idx >= len) key_idx = 0;
}
}
static void arc4_process( struct arc4_info *info, char *buf, unsigned int len )
{
char *state = info->state;
unsigned int x = info->x, y = info->y, a, b;
while (len--)
{
x = (x + 1) & 0xff;
a = state[x];
y = (y + a) & 0xff;
b = state[y];
state[x] = b;
state[y] = a;
*buf++ ^= state[(a + b) & 0xff];
}
info->x = x;
info->y = y;
}
static int get_buffer_index( SecBufferDesc *desc, ULONG type )
{
int idx;
for (idx = 0; idx < desc->cBuffers; idx++)
{
if (desc->pBuffers[idx].BufferType == type) return idx;
}
return -1;
}
static NTSTATUS NTAPI ntlm_SpInitLsaModeContext( LSA_SEC_HANDLE cred_handle, LSA_SEC_HANDLE ctx_handle,
UNICODE_STRING *target, ULONG ctx_req, ULONG data_rep,
SecBufferDesc *input, LSA_SEC_HANDLE *new_ctx_handle,
SecBufferDesc *output, ULONG *ctx_attr, TimeStamp *expiry,
BOOLEAN *mapped_ctx, SecBuffer *ctx_data )
{
NTSTATUS status = SEC_E_INSUFFICIENT_MEMORY;
struct ntlm_ctx *ctx = NULL;
char *buf, *bin, *want_flags = NULL, *username = NULL, *domain = NULL, *password = NULL;
unsigned int len, bin_len;
int idx;
TRACE( "%#Ix, %#Ix, %s, %#lx, %lu, %p, %p, %p, %p, %p, %p, %p\n", cred_handle, ctx_handle, debugstr_us(target),
ctx_req, data_rep, input, new_ctx_handle, output, ctx_attr, expiry, mapped_ctx, ctx_data );
/* when communicating with the client there can be the following reply packets:
* YR <base64 blob> should be sent to the server
* PW should be sent back to helper with base64 encoded password
* AF <base64 blob> client is done, blob should be sent to server with KK prefixed
* GF <string list> a string list of negotiated flags
* GK <base64 blob> base64 encoded session key
* BH <char reason> something broke
*
* The squid cache size is 2010 chars and that's what ntlm_auth uses */
if (!(buf = malloc( NTLM_MAX_BUF ))) return SEC_E_INSUFFICIENT_MEMORY;
if (!(bin = malloc( NTLM_MAX_BUF ))) goto done;
if (!ctx_handle && !input)
{
char *argv[5];
int password_len = 0;
struct ntlm_cred *cred = (struct ntlm_cred *)cred_handle;
if (!cred || cred->mode != MODE_CLIENT)
{
status = SEC_E_INVALID_HANDLE;
goto done;
}
argv[0] = (char *)"ntlm_auth";
argv[1] = (char *)"--helper-protocol=ntlmssp-client-1";
if (!cred->username_arg && !cred->domain_arg)
{
WKSTA_USER_INFO_1 *ui = NULL;
NET_API_STATUS ret;
CREDENTIALW *cached;
if (get_cached_credential( target, &cached ))
{
WCHAR *p;
if ((p = wcschr( cached->UserName, '\\' )))
{
if (!(domain = get_domain_arg( cached->UserName, p - cached->UserName ))) goto done;
p++;
}
else
{
if (!(domain = get_domain_arg( NULL, 0 ))) goto done;
p = cached->UserName;
}
if (!(username = get_username_arg( p, -1 ))) goto done;
if (cached->CredentialBlobSize)
{
password_len = WideCharToMultiByte( CP_UNIXCP, WC_NO_BEST_FIT_CHARS, (WCHAR *)cached->CredentialBlob,
cached->CredentialBlobSize / sizeof(WCHAR), NULL, 0, NULL, NULL );
if (!(password = malloc( password_len ))) goto done;
WideCharToMultiByte( CP_UNIXCP, WC_NO_BEST_FIT_CHARS, (WCHAR *)cached->CredentialBlob,
cached->CredentialBlobSize / sizeof(WCHAR), password, password_len, NULL, NULL );
}
CredFree( cached );
argv[2] = username;
argv[3] = domain;
argv[4] = NULL;
}
else
{
ret = NetWkstaUserGetInfo( NULL, 1, (BYTE **)&ui );
if (ret != NERR_Success || !ui || cred->no_cached_credentials)
{
status = SEC_E_NO_CREDENTIALS;
goto done;
}
if (!(username = get_username_arg( ui->wkui1_username, -1 ))) goto done;
NetApiBufferFree( ui );
TRACE("using cached credentials\n");
argv[2] = username;
argv[3] = (char *)"--use-cached-creds";
argv[4] = NULL;
}
}
else
{
argv[2] = cred->username_arg;
argv[3] = cred->domain_arg;
argv[4] = NULL;
}
if (!(ctx = calloc( 1, sizeof(*ctx) ))) goto done;
if ((status = ntlm_fork( ctx, argv )) != SEC_E_OK) goto done;
status = SEC_E_INSUFFICIENT_MEMORY;
ctx->mode = MODE_CLIENT;
memset( ctx->session_key, 0, sizeof(ctx->session_key) );
/* generate the dummy session key = MD4(MD4(password))*/
if (password || cred->password)
{
WCHAR *passwordW;
len = MultiByteToWideChar( CP_ACP, 0, password ? password : cred->password,
password ? password_len : cred->password_len, NULL, 0 );
if (!(passwordW = malloc( len * sizeof(WCHAR) ))) goto done;
MultiByteToWideChar( CP_ACP, 0, password ? password : cred->password,
password ? password_len : cred->password_len, passwordW, len );
create_ntlm1_session_key( (const char *)passwordW, len * sizeof(WCHAR), ctx->session_key );
free( passwordW );
}
/* allocate space for a maximum string of
* "SF NTLMSSP_FEATURE_SIGN NTLMSSP_FEATURE_SEAL NTLMSSP_FEATURE_SESSION_KEY"
*/
if (!(want_flags = malloc( 73 ))) goto done;
strcpy( want_flags, "SF" );
if (ctx_req & ISC_REQ_CONFIDENTIALITY) strcat( want_flags, " NTLMSSP_FEATURE_SEAL" );
if ((ctx_req & ISC_REQ_INTEGRITY) || (ctx_req & ISC_REQ_REPLAY_DETECT) ||
(ctx_req & ISC_REQ_SEQUENCE_DETECT)) strcat( want_flags, " NTLMSSP_FEATURE_SIGN" );
if (ctx_req & ISC_REQ_CONNECTION) ctx->attrs |= ISC_RET_CONNECTION;
if (ctx_req & ISC_REQ_EXTENDED_ERROR) ctx->attrs |= ISC_RET_EXTENDED_ERROR;
if (ctx_req & ISC_REQ_MUTUAL_AUTH) ctx->attrs |= ISC_RET_MUTUAL_AUTH;
if (ctx_req & ISC_REQ_USE_DCE_STYLE) ctx->attrs |= ISC_RET_USED_DCE_STYLE;
if (ctx_req & ISC_REQ_DELEGATE) ctx->attrs |= ISC_RET_DELEGATE;
if (ctx_req & ISC_REQ_STREAM) FIXME( "ISC_REQ_STREAM\n" );
/* use cached credentials if no password was given, fall back to an empty password on failure */
if (!password && !cred->password)
{
strcpy( buf, "OK" );
if ((status = ntlm_chat( ctx, buf, NTLM_MAX_BUF, &len )) != SEC_E_OK) goto done;
/* if the helper replied with "PW" using cached credentials failed */
if (!strncmp( buf, "PW", 2 ))
{
TRACE( "using cached credentials failed\n" );
strcpy( buf, "PW AA==" );
}
else strcpy( buf, "OK" ); /* just do a noop on the next run */
}
else
{
strcpy( buf, "PW " );
encode_base64( password ? password : cred->password, password ? password_len : cred->password_len, buf + 3 );
}
TRACE( "sending to ntlm_auth: %s\n", debugstr_a(buf) );
if ((status = ntlm_chat( ctx, buf, NTLM_MAX_BUF, &len )) != SEC_E_OK) goto done;
TRACE( "ntlm_auth returned %s\n", debugstr_a(buf) );
if (strlen( want_flags ) > 2)
{
TRACE( "want flags are %s\n", debugstr_a(want_flags) );
strcpy( buf, want_flags );
if ((status = ntlm_chat( ctx, buf, NTLM_MAX_BUF, &len )) != SEC_E_OK) goto done;
if (!strncmp( buf, "BH", 2 )) ERR( "ntlm_auth doesn't understand new command set\n" );
}
strcpy( buf, "YR" );
if ((status = ntlm_chat( ctx, buf, NTLM_MAX_BUF, &len )) != SEC_E_OK) goto done;
TRACE( "ntlm_auth returned %s\n", buf );
if (strncmp( buf, "YR ", 3 ))
{
status = SEC_E_INTERNAL_ERROR;
goto done;
}
bin_len = decode_base64( buf + 3, len - 3, bin );
*new_ctx_handle = (LSA_SEC_HANDLE)ctx;
status = SEC_I_CONTINUE_NEEDED;
}
else /* !ctx_handle && !input */
{
if (!input || ((idx = get_buffer_index( input, SECBUFFER_TOKEN )) == -1))
{
status = SEC_E_INVALID_TOKEN;
goto done;
}
ctx = (struct ntlm_ctx *)ctx_handle;
if (!ctx || ctx->mode != MODE_CLIENT)
{
status = SEC_E_INVALID_HANDLE;
goto done;
}
if (!input->pBuffers[idx].pvBuffer || input->pBuffers[idx].cbBuffer > NTLM_MAX_BUF)
{
status = SEC_E_INVALID_TOKEN;
goto done;
}
bin_len = input->pBuffers[idx].cbBuffer;
memcpy( bin, input->pBuffers[idx].pvBuffer, bin_len );
strcpy( buf, "TT " );
encode_base64( bin, bin_len, buf + 3 );
TRACE( "server sent: %s\n", debugstr_a(buf) );
if ((status = ntlm_chat( ctx, buf, NTLM_MAX_BUF, &len ))) goto done;
TRACE( "ntlm_auth returned: %s\n", debugstr_a(buf) );
if (strncmp( buf, "KK ", 3 ) && strncmp( buf, "AF ", 3 ))
{
status = SEC_E_INVALID_TOKEN;
goto done;
}
bin_len = decode_base64( buf + 3, len - 3, bin );
*new_ctx_handle = (LSA_SEC_HANDLE)ctx;
status = SEC_E_OK;
}
if (!output || ((idx = get_buffer_index( output, SECBUFFER_TOKEN )) == -1))
{
if (!ctx_handle && !input) *new_ctx_handle = 0;
status = SEC_E_BUFFER_TOO_SMALL;
goto done;
}
if (ctx_req & ISC_REQ_ALLOCATE_MEMORY)
{
/* freed with secur32.FreeContextBuffer */
if (!(output->pBuffers[idx].pvBuffer = RtlAllocateHeap( GetProcessHeap(), 0, bin_len )))
{
status = SEC_E_INSUFFICIENT_MEMORY;
goto done;
}
output->pBuffers[idx].cbBuffer = bin_len;
}
else if (output->pBuffers[idx].cbBuffer < bin_len)
{
if (!ctx_handle && !input) *new_ctx_handle = 0;
status = SEC_E_BUFFER_TOO_SMALL;
goto done;
}
if (!output->pBuffers[idx].pvBuffer)
{
if (!ctx_handle && !input) *new_ctx_handle = 0;
status = SEC_E_INTERNAL_ERROR;
goto done;
}
output->pBuffers[idx].cbBuffer = bin_len;
memcpy( output->pBuffers[idx].pvBuffer, bin, bin_len );
if (status == SEC_E_OK)
{
strcpy( buf, "GF" );
if ((status = ntlm_chat( ctx, buf, NTLM_MAX_BUF, &len )) != SEC_E_OK) goto done;
if (len < 3) ctx->flags = 0;
else sscanf( buf + 3, "%x", &ctx->flags );
strcpy( buf, "GK" );
if ((status = ntlm_chat( ctx, buf, NTLM_MAX_BUF, &len )) != SEC_E_OK) goto done;
if (!strncmp( buf, "BH", 2 )) TRACE( "no key negotiated\n" );
else if (!strncmp( buf, "GK ", 3 ))
{
bin_len = decode_base64( buf + 3, len - 3, bin );
TRACE( "session key is %s\n", debugstr_a(buf + 3) );
memcpy( ctx->session_key, bin, bin_len );
}
arc4_init( &ctx->crypt.ntlm.arc4info, ctx->session_key, 16 );
ctx->crypt.ntlm.seq_no = 0;
create_ntlm2_subkeys( ctx );
arc4_init( &ctx->crypt.ntlm2.send_arc4info, ctx->crypt.ntlm2.send_seal_key, 16 );
arc4_init( &ctx->crypt.ntlm2.recv_arc4info, ctx->crypt.ntlm2.recv_seal_key, 16 );
ctx->crypt.ntlm2.send_seq_no = 0;
ctx->crypt.ntlm2.recv_seq_no = 0;
}
done:
if (status != SEC_E_OK && status != SEC_I_CONTINUE_NEEDED)
{
ntlm_cleanup( ctx );
free( ctx );
}
free( username );
free( domain );
free( password );
free( buf );
free( bin );
free( want_flags );
TRACE( "returning %#lx\n", status );
return status;
}
static NTSTATUS NTAPI ntlm_SpAcceptLsaModeContext( LSA_SEC_HANDLE cred_handle, LSA_SEC_HANDLE ctx_handle,
SecBufferDesc *input, ULONG ctx_req, ULONG data_rep,
LSA_SEC_HANDLE *new_ctx_handle, SecBufferDesc *output,
ULONG *ctx_attr, TimeStamp *expiry, BOOLEAN *mapped_ctx,
SecBuffer *ctx_data )
{
NTSTATUS status = SEC_E_INSUFFICIENT_MEMORY;
struct ntlm_ctx *ctx = NULL;
char *buf, *bin, *want_flags = NULL;
unsigned int len, bin_len;
TRACE( "%#Ix, %#Ix, %#lx, %lu, %p, %p, %p, %p, %p, %p, %p\n", cred_handle, ctx_handle, ctx_req, data_rep, input,
new_ctx_handle, output, ctx_attr, expiry, mapped_ctx, ctx_data );
if (ctx_req) FIXME( "ignoring flags %#lx\n", ctx_req );
if (!(buf = malloc( NTLM_MAX_BUF ))) return SEC_E_INSUFFICIENT_MEMORY;
if (!(bin = malloc( NTLM_MAX_BUF ))) goto done;
if (!ctx_handle)
{
struct ntlm_cred *cred = (struct ntlm_cred *)cred_handle;
char *argv[3];
if (!cred || cred->mode != MODE_SERVER)
{
status = SEC_E_INVALID_HANDLE;
goto done;
}
if (!input || input->cBuffers < 1)
{
status = SEC_E_INCOMPLETE_MESSAGE;
goto done;
}
if (input->pBuffers[0].cbBuffer > NTLM_MAX_BUF)
{
status = SEC_E_INVALID_TOKEN;
goto done;
}
else bin_len = input->pBuffers[0].cbBuffer;
if (!(ctx = calloc( 1, sizeof(*ctx) ))) goto done;
argv[0] = (char *)"ntlm_auth";
argv[1] = (char *)"--helper-protocol=squid-2.5-ntlmssp";
argv[2] = NULL;
if ((status = ntlm_fork( ctx, argv )) != SEC_E_OK) goto done;
ctx->mode = MODE_SERVER;
if (!(want_flags = malloc( 73 )))
{
status = SEC_E_INSUFFICIENT_MEMORY;
goto done;
}
strcpy( want_flags, "SF" );
if (ctx_req & ASC_REQ_CONFIDENTIALITY) strcat( want_flags, " NTLMSSP_FEATURE_SEAL" );
if (ctx_req & ASC_REQ_CONNECTION)
{
strcat( want_flags, " NTLMSSP_FEATURE_SESSION_KEY" );
ctx->attrs |= ASC_RET_CONNECTION;
}
if (ctx_req & ASC_REQ_INTEGRITY) strcat( want_flags, " NTLMSSP_FEATURE_SIGN" );
if (ctx_req & ASC_REQ_ALLOCATE_MEMORY) FIXME( "ASC_REQ_ALLOCATE_MEMORY\n" );
if (ctx_req & ASC_REQ_EXTENDED_ERROR) FIXME( "ASC_REQ_EXTENDED_ERROR\n" );
if (ctx_req & ASC_REQ_MUTUAL_AUTH) FIXME( "ASC_REQ_MUTUAL_AUTH\n" );
if (ctx_req & ASC_REQ_REPLAY_DETECT) FIXME( "ASC_REQ_REPLAY_DETECT\n" );
if (ctx_req & ASC_REQ_SEQUENCE_DETECT) FIXME( "ASC_REQ_SEQUENCE_DETECT\n" );
if (ctx_req & ASC_REQ_STREAM) FIXME( "ASC_REQ_STREAM\n" );
if (strlen( want_flags ) > 3)
{
TRACE( "want flags are %s\n", debugstr_a(want_flags) );
strcpy( buf, want_flags );
if ((status = ntlm_chat( ctx, buf, NTLM_MAX_BUF, &len )) != SEC_E_OK) goto done;
if (!strncmp( buf, "BH", 2 )) ERR( "ntlm_auth doesn't understand new command set\n" );
}
memcpy( bin, input->pBuffers[0].pvBuffer, bin_len );
strcpy( buf, "YR " );
encode_base64( bin, bin_len, buf + 3 );
if ((status = ntlm_chat( ctx, buf, NTLM_MAX_BUF, &len )) != SEC_E_OK) goto done;
TRACE( "ntlm_auth returned %s\n", buf );
if (strncmp( buf, "TT ", 3))
{
status = SEC_E_INTERNAL_ERROR;
goto done;
}
bin_len = decode_base64( buf + 3, len - 3, bin );
if (!output || output->cBuffers < 1)
{
status = SEC_E_INSUFFICIENT_MEMORY;
goto done;
}
output->pBuffers[0].cbBuffer = bin_len;
output->pBuffers[0].BufferType = SECBUFFER_DATA;
memcpy( output->pBuffers[0].pvBuffer, bin, bin_len );
*new_ctx_handle = (LSA_SEC_HANDLE)ctx;
status = SEC_I_CONTINUE_NEEDED;
}
else
{
if (!input || input->cBuffers < 1)
{
status = SEC_E_INCOMPLETE_MESSAGE;
goto done;
}
ctx = (struct ntlm_ctx *)ctx_handle;
if (!ctx || ctx->mode != MODE_SERVER)
{
status = SEC_E_INVALID_HANDLE;
goto done;
}
if (input->pBuffers[0].cbBuffer > NTLM_MAX_BUF)
{
status = SEC_E_INVALID_TOKEN;
goto done;
}
else bin_len = input->pBuffers[0].cbBuffer;
memcpy( bin, input->pBuffers[0].pvBuffer, bin_len );
strcpy( buf, "KK " );
encode_base64( bin, bin_len, buf + 3 );
TRACE( "client sent %s\n", debugstr_a(buf) );
if ((status = ntlm_chat( ctx, buf, NTLM_MAX_BUF, &len )) != SEC_E_OK) goto done;
TRACE( "ntlm_auth returned %s\n", debugstr_a(buf) );
/* At this point, we get a NA if the user didn't authenticate, but a BH if ntlm_auth could not
* connect to winbindd. Apart from running Wine as root, there is no way to fix this for now,
* so just handle this as a failed login. */
if (strncmp( buf, "AF ", 3 ))
{
if (!strncmp( buf, "NA ", 3 ))
{
status = SEC_E_LOGON_DENIED;
goto done;
}
else
{
const char err_v3[] = "BH NT_STATUS_ACCESS_DENIED";
const char err_v4[] = "BH NT_STATUS_UNSUCCESSFUL";
if ((len >= strlen(err_v3) && !strncmp( buf, err_v3, strlen(err_v3) )) ||
(len >= strlen(err_v4) && !strncmp( buf, err_v4, strlen(err_v4) )))
{
TRACE( "connection to winbindd failed\n" );
status = SEC_E_LOGON_DENIED;
}
else status = SEC_E_INTERNAL_ERROR;
goto done;
}
}
output->pBuffers[0].cbBuffer = 0;
strcpy( buf, "GF" );
if ((status = ntlm_chat( ctx, buf, NTLM_MAX_BUF, &len )) != SEC_E_OK) goto done;
if (len < 3) ctx->flags = 0;
else sscanf( buf + 3, "%x", &ctx->flags );
strcpy( buf, "GK" );
if ((status = ntlm_chat( ctx, buf, NTLM_MAX_BUF, &len )) != SEC_E_OK) goto done;
if (!strncmp( buf, "BH", 2 )) TRACE( "no key negotiated\n" );
else if (!strncmp( buf, "GK ", 3 ))
{
bin_len = decode_base64( buf + 3, len - 3, bin );
TRACE( "session key is %s\n", debugstr_a(buf + 3) );
memcpy( ctx->session_key, bin, bin_len );
}
if (len < 3) memset( ctx->session_key, 0 , 16 );
else
{
if (!strncmp( buf, "BH ", 3 ))
{
TRACE( "helper sent %s\n", debugstr_a(buf + 3) );
/*FIXME: generate dummy session key = MD4(MD4(password))*/
memset( ctx->session_key, 0 , 16 );
}
else if (!strncmp( buf, "GK ", 3 ))
{
bin_len = decode_base64( buf + 3, len - 3, bin );
TRACE( "session key is %s\n", debugstr_a(buf + 3) );
memcpy( ctx->session_key, bin, 16 );
}
}
arc4_init( &ctx->crypt.ntlm.arc4info, ctx->session_key, 16 );
ctx->crypt.ntlm.seq_no = 0;
*new_ctx_handle = (LSA_SEC_HANDLE)ctx;
status = SEC_E_OK;
}
done:
if (status != SEC_E_OK && status != SEC_I_CONTINUE_NEEDED)
{
ntlm_cleanup( ctx );
free( ctx );
}
free( buf );
free( bin );
free( want_flags );
TRACE( "returning %#lx\n", status );
return status;
}
static NTSTATUS NTAPI ntlm_SpDeleteContext( LSA_SEC_HANDLE handle )
{
struct ntlm_ctx *ctx = (struct ntlm_ctx *)handle;
TRACE( "%#Ix\n", handle );
if (!ctx) return SEC_E_INVALID_HANDLE;
ntlm_cleanup( ctx );
free( ctx );
return SEC_E_OK;
}
static SecPkgInfoW *build_package_info( const SecPkgInfoW *info )
{
SecPkgInfoW *ret;
DWORD size_name = (wcslen(info->Name) + 1) * sizeof(WCHAR);
DWORD size_comment = (wcslen(info->Comment) + 1) * sizeof(WCHAR);
if (!(ret = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*ret) + size_name + size_comment ))) return NULL;
ret->fCapabilities = info->fCapabilities;
ret->wVersion = info->wVersion;
ret->wRPCID = info->wRPCID;
ret->cbMaxToken = info->cbMaxToken;
ret->Name = (SEC_WCHAR *)(ret + 1);
memcpy( ret->Name, info->Name, size_name );
ret->Comment = (SEC_WCHAR *)((char *)ret->Name + size_name);
memcpy( ret->Comment, info->Comment, size_comment );
return ret;
}
static NTSTATUS NTAPI ntlm_SpQueryContextAttributes( LSA_SEC_HANDLE handle, ULONG attr, void *buf )
{
TRACE( "%#Ix, %lu, %p\n", handle, attr, buf );
if (!handle) return SEC_E_INVALID_HANDLE;
switch (attr)
{
#define X(x) case (x) : FIXME(#x" stub\n"); break
X(SECPKG_ATTR_ACCESS_TOKEN);
X(SECPKG_ATTR_AUTHORITY);
X(SECPKG_ATTR_DCE_INFO);
X(SECPKG_ATTR_KEY_INFO);
X(SECPKG_ATTR_LIFESPAN);
X(SECPKG_ATTR_NAMES);
X(SECPKG_ATTR_NATIVE_NAMES);
X(SECPKG_ATTR_PACKAGE_INFO);
X(SECPKG_ATTR_PASSWORD_EXPIRY);
X(SECPKG_ATTR_SESSION_KEY);
X(SECPKG_ATTR_STREAM_SIZES);
X(SECPKG_ATTR_TARGET_INFORMATION);
case SECPKG_ATTR_FLAGS:
{
SecPkgContext_Flags *flags = (SecPkgContext_Flags *)buf;
struct ntlm_ctx *ctx = (struct ntlm_ctx *)handle;
flags->Flags = 0;
if (ctx->flags & FLAG_NEGOTIATE_SIGN) flags->Flags |= ISC_RET_INTEGRITY;
if (ctx->flags & FLAG_NEGOTIATE_SEAL) flags->Flags |= ISC_RET_CONFIDENTIALITY;
return SEC_E_OK;
}
case SECPKG_ATTR_SIZES:
{
SecPkgContext_Sizes *sizes = (SecPkgContext_Sizes *)buf;
sizes->cbMaxToken = NTLM_MAX_BUF;
sizes->cbMaxSignature = 16;
sizes->cbBlockSize = 0;
sizes->cbSecurityTrailer = 16;
return SEC_E_OK;
}
case SECPKG_ATTR_NEGOTIATION_INFO:
{
SecPkgContext_NegotiationInfoW *info = (SecPkgContext_NegotiationInfoW *)buf;
if (!(info->PackageInfo = build_package_info( &ntlm_package_info ))) return SEC_E_INSUFFICIENT_MEMORY;
info->NegotiationState = SECPKG_NEGOTIATION_COMPLETE;
return SEC_E_OK;
}
#undef X
default:
FIXME( "unknown attribute %lu\n", attr );
break;
}
return SEC_E_UNSUPPORTED_FUNCTION;
}
static SECPKG_FUNCTION_TABLE ntlm_table =
{
ntlm_LsaApInitializePackage,
NULL, /* LsaLogonUser */
NULL, /* CallPackage */
NULL, /* LogonTerminated */
NULL, /* CallPackageUntrusted */
NULL, /* CallPackagePassthrough */
NULL, /* LogonUserEx */
NULL, /* LogonUserEx2 */
ntlm_SpInitialize,
NULL, /* SpShutdown */
ntlm_SpGetInfo,
NULL, /* AcceptCredentials */
ntlm_SpAcquireCredentialsHandle,
NULL, /* SpQueryCredentialsAttributes */
ntlm_SpFreeCredentialsHandle,
NULL, /* SaveCredentials */
NULL, /* GetCredentials */
NULL, /* DeleteCredentials */
ntlm_SpInitLsaModeContext,
ntlm_SpAcceptLsaModeContext,
ntlm_SpDeleteContext,
NULL, /* ApplyControlToken */
NULL, /* GetUserInfo */
NULL, /* GetExtendedInformation */
ntlm_SpQueryContextAttributes,
NULL, /* SpAddCredentials */
NULL, /* SetExtendedInformation */
NULL, /* SetContextAttributes */
NULL, /* SetCredentialsAttributes */
NULL, /* ChangeAccountPassword */
NULL, /* QueryMetaData */
NULL, /* ExchangeMetaData */
NULL, /* GetCredUIContext */
NULL, /* UpdateCredentials */
NULL, /* ValidateTargetInfo */
NULL, /* PostLogonUser */
};
NTSTATUS NTAPI SpLsaModeInitialize( ULONG lsa_version, ULONG *package_version, SECPKG_FUNCTION_TABLE **table,
ULONG *table_count )
{
TRACE( "%#lx, %p, %p, %p\n", lsa_version, package_version, table, table_count );
*package_version = SECPKG_INTERFACE_VERSION;
*table = &ntlm_table;
*table_count = 1;
return STATUS_SUCCESS;
}
static NTSTATUS NTAPI ntlm_SpInstanceInit( ULONG version, SECPKG_DLL_FUNCTIONS *dll_functions, void **user_functions )
{
TRACE( "%#lx, %p, %p\n", version, dll_functions, user_functions );
return STATUS_SUCCESS;
}
struct hmac_md5_ctx
{
struct md5_ctx ctx;
char outer_padding[64];
};
static void hmac_md5_init( struct hmac_md5_ctx *ctx, const char *key, unsigned int key_len )
{
char inner_padding[64], tmp_key[16];
unsigned int i;
if (key_len > 64)
{
struct md5_ctx tmp_ctx;
MD5Init( &tmp_ctx );
MD5Update( &tmp_ctx, key, key_len );
MD5Final( &tmp_ctx );
memcpy( tmp_key, tmp_ctx.digest, 16 );
key = tmp_key;
key_len = 16;
}
memset( inner_padding, 0, 64 );
memset( ctx->outer_padding, 0, 64 );
memcpy( inner_padding, key, key_len );
memcpy( ctx->outer_padding, key, key_len );
for (i = 0; i < 64; i++)
{
inner_padding[i] ^= 0x36;
ctx->outer_padding[i] ^= 0x5c;
}
MD5Init( &ctx->ctx );
MD5Update( &ctx->ctx, inner_padding, 64 );
}
static void hmac_md5_update( struct hmac_md5_ctx *ctx, const char *buf, unsigned int len )
{
MD5Update( &ctx->ctx, buf, len );
}
static void hmac_md5_final( struct hmac_md5_ctx *ctx, char *digest )
{
struct md5_ctx outer_ctx;
char inner_digest[16];
MD5Final( &ctx->ctx );
memcpy( inner_digest, ctx->ctx.digest, 16 );
MD5Init( &outer_ctx );
MD5Update( &outer_ctx, ctx->outer_padding, 64 );
MD5Update( &outer_ctx, inner_digest, 16 );
MD5Final( &outer_ctx );
memcpy( digest, outer_ctx.digest, 16 );
}
static SECURITY_STATUS create_signature( struct ntlm_ctx *ctx, unsigned int flags, SecBufferDesc *msg, int idx,
enum sign_direction dir, BOOL encrypt )
{
unsigned int i, sign_version = 1;
char *sig = msg->pBuffers[idx].pvBuffer;
if (flags & FLAG_NEGOTIATE_NTLM2 && flags & FLAG_NEGOTIATE_SIGN)
{
char digest[16], seq_no[4];
struct hmac_md5_ctx hmac_md5;
if (dir == SIGN_SEND)
{
seq_no[0] = (ctx->crypt.ntlm2.send_seq_no >> 0) & 0xff;
seq_no[1] = (ctx->crypt.ntlm2.send_seq_no >> 8) & 0xff;
seq_no[2] = (ctx->crypt.ntlm2.send_seq_no >> 16) & 0xff;
seq_no[3] = (ctx->crypt.ntlm2.send_seq_no >> 24) & 0xff;
ctx->crypt.ntlm2.send_seq_no++;
hmac_md5_init( &hmac_md5, ctx->crypt.ntlm2.send_sign_key, 16 );
}
else
{
seq_no[0] = (ctx->crypt.ntlm2.recv_seq_no >> 0) & 0xff;
seq_no[1] = (ctx->crypt.ntlm2.recv_seq_no >> 8) & 0xff;
seq_no[2] = (ctx->crypt.ntlm2.recv_seq_no >> 16) & 0xff;
seq_no[3] = (ctx->crypt.ntlm2.recv_seq_no >> 24) & 0xff;
ctx->crypt.ntlm2.recv_seq_no++;
hmac_md5_init( &hmac_md5, ctx->crypt.ntlm2.recv_sign_key, 16 );
}
hmac_md5_update( &hmac_md5, seq_no, 4 );
for (i = 0; i < msg->cBuffers; ++i)
{
if (msg->pBuffers[i].BufferType & SECBUFFER_DATA)
hmac_md5_update( &hmac_md5, msg->pBuffers[i].pvBuffer, msg->pBuffers[i].cbBuffer );
}
hmac_md5_final( &hmac_md5, digest );
if (encrypt && flags & FLAG_NEGOTIATE_KEY_EXCHANGE)
{
if (dir == SIGN_SEND)
arc4_process( &ctx->crypt.ntlm2.send_arc4info, digest, 8 );
else
arc4_process( &ctx->crypt.ntlm2.recv_arc4info, digest, 8 );
}
sig[0] = (sign_version >> 0) & 0xff;
sig[1] = (sign_version >> 8) & 0xff;
sig[2] = (sign_version >> 16) & 0xff;
sig[3] = (sign_version >> 24) & 0xff;
memcpy( sig + 4, digest, 8 );
memcpy( sig + 12, seq_no, 4 );
msg->pBuffers[idx].cbBuffer = 16;
return SEC_E_OK;
}
if (flags & FLAG_NEGOTIATE_SIGN)
{
unsigned int crc = 0;
for (i = 0; i < msg->cBuffers; ++i)
{
if (msg->pBuffers[i].BufferType & SECBUFFER_DATA)
crc = RtlComputeCrc32( crc, msg->pBuffers[i].pvBuffer, msg->pBuffers[i].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] = (ctx->crypt.ntlm.seq_no >> 0) & 0xff;
sig[13] = (ctx->crypt.ntlm.seq_no >> 8) & 0xff;
sig[14] = (ctx->crypt.ntlm.seq_no >> 16) & 0xff;
sig[15] = (ctx->crypt.ntlm.seq_no >> 24) & 0xff;
ctx->crypt.ntlm.seq_no++;
if (encrypt) arc4_process( &ctx->crypt.ntlm.arc4info, sig + 4, 12 );
return SEC_E_OK;
}
if (flags & FLAG_NEGOTIATE_ALWAYS_SIGN || !flags)
{
/* create dummy signature */
memset( msg->pBuffers[idx].pvBuffer, 0, 16 );
memset( msg->pBuffers[idx].pvBuffer, 1, 1 );
msg->pBuffers[idx].cbBuffer = 16;
return SEC_E_OK;
}
return SEC_E_UNSUPPORTED_FUNCTION;
}
static NTSTATUS NTAPI ntlm_SpMakeSignature( LSA_SEC_HANDLE handle, ULONG qop, SecBufferDesc *msg, ULONG msg_seq_no )
{
struct ntlm_ctx *ctx = (struct ntlm_ctx *)handle;
int idx;
TRACE( "%#Ix, %#lx, %p, %lu\n", handle, qop, msg, msg_seq_no );
if (qop) FIXME( "ignoring quality of protection %#lx\n", qop );
if (msg_seq_no) FIXME( "ignoring message sequence number %lu\n", msg_seq_no );
if (!handle) return SEC_E_INVALID_HANDLE;
if (!msg || !msg->pBuffers || msg->cBuffers < 2 || (idx = get_buffer_index( msg, SECBUFFER_TOKEN )) == -1)
return SEC_E_INVALID_TOKEN;
if (msg->pBuffers[idx].cbBuffer < 16) return SEC_E_BUFFER_TOO_SMALL;
return create_signature( ctx, ctx->flags, msg, idx, SIGN_SEND, TRUE );
}
static NTSTATUS verify_signature( struct ntlm_ctx *ctx, unsigned int flags, SecBufferDesc *msg, int idx )
{
NTSTATUS status;
unsigned int i;
SecBufferDesc desc;
SecBuffer *buf;
char sig[16];
if (!(buf = malloc( msg->cBuffers * sizeof(*buf) ))) return SEC_E_INSUFFICIENT_MEMORY;
desc.ulVersion = SECBUFFER_VERSION;
desc.cBuffers = msg->cBuffers;
desc.pBuffers = buf;
for (i = 0; i < msg->cBuffers; i++)
{
if (msg->pBuffers[i].BufferType == SECBUFFER_TOKEN)
{
buf[i].BufferType = SECBUFFER_TOKEN;
buf[i].cbBuffer = 16;
buf[i].pvBuffer = sig;
}
else
{
buf[i].BufferType = msg->pBuffers[i].BufferType;
buf[i].cbBuffer = msg->pBuffers[i].cbBuffer;
buf[i].pvBuffer = msg->pBuffers[i].pvBuffer;
}
}
if ((status = create_signature( ctx, flags, &desc, idx, SIGN_RECV, TRUE )) == SEC_E_OK)
{
if (memcmp( (char *)buf[idx].pvBuffer + 8, (char *)msg->pBuffers[idx].pvBuffer + 8, 8 ))
status = SEC_E_MESSAGE_ALTERED;
}
free( buf );
return status;
}
static NTSTATUS NTAPI ntlm_SpVerifySignature( LSA_SEC_HANDLE handle, SecBufferDesc *msg, ULONG msg_seq_no, ULONG *qop )
{
struct ntlm_ctx *ctx = (struct ntlm_ctx *)handle;
int idx;
TRACE( "%#Ix, %p, %lu, %p\n", handle, msg, msg_seq_no, qop );
if (msg_seq_no) FIXME( "ignoring message sequence number %lu\n", msg_seq_no );
if (!handle) return SEC_E_INVALID_HANDLE;
if (!msg || !msg->pBuffers || msg->cBuffers < 2 || (idx = get_buffer_index( msg, SECBUFFER_TOKEN )) == -1)
return SEC_E_INVALID_TOKEN;
if (msg->pBuffers[idx].cbBuffer < 16) return SEC_E_BUFFER_TOO_SMALL;
return verify_signature( ctx, ctx->flags, msg, idx );
}
static NTSTATUS NTAPI ntlm_SpSealMessage( LSA_SEC_HANDLE handle, ULONG qop, SecBufferDesc *msg, ULONG msg_seq_no )
{
int token_idx, data_idx;
struct ntlm_ctx *ctx;
TRACE( "%#Ix, %#lx, %p %lu\n", handle, qop, msg, msg_seq_no );
if (qop) FIXME( "ignoring quality of protection %#lx\n", qop );
if (msg_seq_no) FIXME( "ignoring message sequence number %lu\n", msg_seq_no );
if (!handle) return SEC_E_INVALID_HANDLE;
if (!msg || !msg->pBuffers || msg->cBuffers < 2 ||
(token_idx = get_buffer_index( msg, SECBUFFER_TOKEN )) == -1 ||
(data_idx = get_buffer_index( msg, SECBUFFER_DATA )) == -1) return SEC_E_INVALID_TOKEN;
if (msg->pBuffers[token_idx].cbBuffer < 16) return SEC_E_BUFFER_TOO_SMALL;
ctx = (struct ntlm_ctx *)handle;
if (ctx->flags & FLAG_NEGOTIATE_NTLM2 && ctx->flags & FLAG_NEGOTIATE_SEAL)
{
create_signature( ctx, ctx->flags, msg, token_idx, SIGN_SEND, FALSE );
arc4_process( &ctx->crypt.ntlm2.send_arc4info, msg->pBuffers[data_idx].pvBuffer,
msg->pBuffers[data_idx].cbBuffer );
if (ctx->flags & FLAG_NEGOTIATE_KEY_EXCHANGE)
arc4_process( &ctx->crypt.ntlm2.send_arc4info, (char *)msg->pBuffers[token_idx].pvBuffer + 4, 8 );
}
else
{
char *sig = msg->pBuffers[token_idx].pvBuffer;
create_signature( ctx, ctx->flags | FLAG_NEGOTIATE_SIGN, msg, token_idx, SIGN_SEND, FALSE );
arc4_process( &ctx->crypt.ntlm.arc4info, msg->pBuffers[data_idx].pvBuffer, msg->pBuffers[data_idx].cbBuffer );
arc4_process( &ctx->crypt.ntlm.arc4info, sig + 4, 12 );
if (ctx->flags & FLAG_NEGOTIATE_ALWAYS_SIGN || !ctx->flags) memset( sig + 4, 0, 4 );
}
return SEC_E_OK;
}
static NTSTATUS NTAPI ntlm_SpUnsealMessage( LSA_SEC_HANDLE handle, SecBufferDesc *msg, ULONG msg_seq_no, ULONG *qop )
{
int token_idx, data_idx;
struct ntlm_ctx *ctx;
TRACE( "%#Ix, %p, %lu, %p\n", handle, msg, msg_seq_no, qop );
if (msg_seq_no) FIXME( "ignoring message sequence number %lu\n", msg_seq_no );
if (!handle) return SEC_E_INVALID_HANDLE;
if (!msg || !msg->pBuffers || msg->cBuffers < 2 ||
(token_idx = get_buffer_index( msg, SECBUFFER_TOKEN )) == -1 ||
(data_idx = get_buffer_index( msg, SECBUFFER_DATA )) == -1) return SEC_E_INVALID_TOKEN;
if (msg->pBuffers[token_idx].cbBuffer < 16) return SEC_E_BUFFER_TOO_SMALL;
ctx = (struct ntlm_ctx *)handle;
if (ctx->flags & FLAG_NEGOTIATE_NTLM2 && ctx->flags & FLAG_NEGOTIATE_SEAL)
arc4_process( &ctx->crypt.ntlm2.recv_arc4info, msg->pBuffers[data_idx].pvBuffer,
msg->pBuffers[data_idx].cbBuffer );
else
arc4_process( &ctx->crypt.ntlm.arc4info, msg->pBuffers[data_idx].pvBuffer,
msg->pBuffers[data_idx].cbBuffer);
/* make sure we use a session key for the signature check, SealMessage always does that,
even in the dummy case */
return verify_signature( ctx, ctx->flags | FLAG_NEGOTIATE_SIGN, msg, token_idx );
}
static SECPKG_USER_FUNCTION_TABLE ntlm_user_table =
{
ntlm_SpInstanceInit,
NULL, /* SpInitUserModeContext */
ntlm_SpMakeSignature,
ntlm_SpVerifySignature,
ntlm_SpSealMessage,
ntlm_SpUnsealMessage,
NULL, /* SpGetContextToken */
NULL, /* SpQueryContextAttributes */
NULL, /* SpCompleteAuthToken */
NULL, /* SpDeleteContext */
NULL, /* SpFormatCredentialsFn */
NULL, /* SpMarshallSupplementalCreds */
NULL, /* SpExportSecurityContext */
NULL /* SpImportSecurityContext */
};
NTSTATUS NTAPI SpUserModeInitialize( ULONG lsa_version, ULONG *package_version, SECPKG_USER_FUNCTION_TABLE **table,
ULONG *table_count )
{
TRACE( "%#lx, %p, %p, %p\n", lsa_version, package_version, table, table_count );
*package_version = SECPKG_INTERFACE_VERSION;
*table = &ntlm_user_table;
*table_count = 1;
return STATUS_SUCCESS;
}
BOOL WINAPI DllMain( HINSTANCE hinst, DWORD reason, void *reserved )
{
switch (reason)
{
case DLL_PROCESS_ATTACH:
if (NtQueryVirtualMemory( GetCurrentProcess(), hinst, MemoryWineUnixFuncs,
&ntlm_handle, sizeof(ntlm_handle), NULL ))
return FALSE;
DisableThreadLibraryCalls( hinst );
break;
}
return TRUE;
}
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