60808233f3
in directory Also includes first part of fix to compensate for servers which forget to return . and .. as well as updates to changelog and cifs readme. Signed-off-by: Steve French <sfrench@us.ibm.com>
144 lines
4.5 KiB
C
144 lines
4.5 KiB
C
/*
|
|
* fs/cifs/ntlmssp.h
|
|
*
|
|
* Copyright (c) International Business Machines Corp., 2006
|
|
* Author(s): Steve French (sfrench@us.ibm.com)
|
|
*
|
|
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#include "cifspdu.h"
|
|
#include "cifsglob.h"
|
|
#include "cifsproto.h"
|
|
#include "cifs_unicode.h"
|
|
#include "cifs_debug.h"
|
|
#include "ntlmssp.h"
|
|
#include "nterr.h"
|
|
|
|
#ifdef CONFIG_CIFS_EXPERIMENTAL
|
|
static __u32 cifs_ssetup_hdr(struct cifsSesInfo *ses, SESSION_SETUP_ANDX *pSMB)
|
|
{
|
|
__u32 capabilities = 0;
|
|
|
|
/* init fields common to all four types of SessSetup */
|
|
/* note that header is initialized to zero in header_assemble */
|
|
pSMB->req.AndXCommand = 0xFF;
|
|
pSMB->req.MaxBufferSize = cpu_to_le16(ses->server->maxBuf);
|
|
pSMB->req.MaxMpxCount = cpu_to_le16(ses->server->maxReq);
|
|
|
|
/* Now no need to set SMBFLG_CASELESS or obsolete CANONICAL PATH */
|
|
|
|
/* BB verify whether signing required on neg or just on auth frame
|
|
(and NTLM case) */
|
|
|
|
capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS |
|
|
CAP_LARGE_WRITE_X | CAP_LARGE_READ_X;
|
|
|
|
if(ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
|
|
pSMB->req.hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE;
|
|
|
|
if (ses->capabilities & CAP_UNICODE) {
|
|
pSMB->req.hdr.Flags2 |= SMBFLG2_UNICODE;
|
|
capabilities |= CAP_UNICODE;
|
|
}
|
|
if (ses->capabilities & CAP_STATUS32) {
|
|
pSMB->req.hdr.Flags2 |= SMBFLG2_ERR_STATUS;
|
|
capabilities |= CAP_STATUS32;
|
|
}
|
|
if (ses->capabilities & CAP_DFS) {
|
|
pSMB->req.hdr.Flags2 |= SMBFLG2_DFS;
|
|
capabilities |= CAP_DFS;
|
|
}
|
|
|
|
/* BB check whether to init vcnum BB */
|
|
return capabilities;
|
|
}
|
|
int
|
|
CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, const int type,
|
|
int * pNTLMv2_flg, const struct nls_table *nls_cp)
|
|
{
|
|
int rc = 0;
|
|
int wct;
|
|
struct smb_hdr *smb_buffer;
|
|
char *bcc_ptr;
|
|
SESSION_SETUP_ANDX *pSMB;
|
|
__u32 capabilities;
|
|
|
|
if(ses == NULL)
|
|
return -EINVAL;
|
|
|
|
cFYI(1,("SStp type: %d",type));
|
|
if(type < CIFS_NTLM) {
|
|
#ifndef CONFIG_CIFS_WEAK_PW_HASH
|
|
/* LANMAN and plaintext are less secure and off by default.
|
|
So we make this explicitly be turned on in kconfig (in the
|
|
build) and turned on at runtime (changed from the default)
|
|
in proc/fs/cifs or via mount parm. Unfortunately this is
|
|
needed for old Win (e.g. Win95), some obscure NAS and OS/2 */
|
|
return -EOPNOTSUPP;
|
|
#endif
|
|
wct = 10; /* lanman 2 style sessionsetup */
|
|
} else if(type < CIFS_NTLMSSP_NEG)
|
|
wct = 13; /* old style NTLM sessionsetup */
|
|
else /* same size for negotiate or auth, NTLMSSP or extended security */
|
|
wct = 12;
|
|
|
|
rc = small_smb_init_no_tc(SMB_COM_SESSION_SETUP_ANDX, wct, ses,
|
|
(void **)&smb_buffer);
|
|
if(rc)
|
|
return rc;
|
|
|
|
pSMB = (SESSION_SETUP_ANDX *)smb_buffer;
|
|
|
|
capabilities = cifs_ssetup_hdr(ses, pSMB);
|
|
bcc_ptr = pByteArea(smb_buffer);
|
|
if(type > CIFS_NTLM) {
|
|
pSMB->req.hdr.Flags2 |= SMBFLG2_EXT_SEC;
|
|
capabilities |= CAP_EXTENDED_SECURITY;
|
|
pSMB->req.Capabilities = cpu_to_le32(capabilities);
|
|
/* BB set password lengths */
|
|
} else if(type < CIFS_NTLM) /* lanman */ {
|
|
/* no capabilities flags in old lanman negotiation */
|
|
/* pSMB->old_req.PasswordLength = */ /* BB fixme BB */
|
|
} else /* type CIFS_NTLM */ {
|
|
pSMB->req_no_secext.Capabilities = cpu_to_le32(capabilities);
|
|
pSMB->req_no_secext.CaseInsensitivePasswordLength =
|
|
cpu_to_le16(CIFS_SESSION_KEY_SIZE);
|
|
pSMB->req_no_secext.CaseSensitivePasswordLength =
|
|
cpu_to_le16(CIFS_SESSION_KEY_SIZE);
|
|
}
|
|
|
|
|
|
/* copy session key */
|
|
|
|
/* if Unicode, align strings to two byte boundary */
|
|
|
|
/* copy user name */ /* BB Do we need to special case null user name? */
|
|
|
|
/* copy domain name */
|
|
|
|
/* copy Linux version */
|
|
|
|
/* copy network operating system name */
|
|
|
|
/* update bcc and smb buffer length */
|
|
|
|
/* rc = SendReceive2(xid, ses, iov, num_iovecs, &resp_buf_type, 0); */
|
|
/* SMB request buf freed in SendReceive2 */
|
|
|
|
return rc;
|
|
}
|
|
#endif /* CONFIG_CIFS_EXPERIMENTAL */
|