4 * Copyright (c) International Business Machines Corp., 2006
5 * Author(s): Steve French (sfrench@us.ibm.com)
7 * This library is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU Lesser General Public License as published
9 * by the Free Software Foundation; either version 2.1 of the License, or
10 * (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
15 * the GNU Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public License
18 * along with this library; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 #include "cifsproto.h"
25 #include "cifs_unicode.h"
26 #include "cifs_debug.h"
30 #ifdef CONFIG_CIFS_EXPERIMENTAL
31 static __u32
cifs_ssetup_hdr(struct cifsSesInfo
*ses
, SESSION_SETUP_ANDX
*pSMB
)
33 __u32 capabilities
= 0;
35 /* init fields common to all four types of SessSetup */
36 /* note that header is initialized to zero in header_assemble */
37 pSMB
->req
.AndXCommand
= 0xFF;
38 pSMB
->req
.MaxBufferSize
= cpu_to_le16(ses
->server
->maxBuf
);
39 pSMB
->req
.MaxMpxCount
= cpu_to_le16(ses
->server
->maxReq
);
41 /* Now no need to set SMBFLG_CASELESS or obsolete CANONICAL PATH */
43 /* BB verify whether signing required on neg or just on auth frame
46 capabilities
= CAP_LARGE_FILES
| CAP_NT_SMBS
| CAP_LEVEL_II_OPLOCKS
|
47 CAP_LARGE_WRITE_X
| CAP_LARGE_READ_X
;
49 if(ses
->server
->secMode
& (SECMODE_SIGN_REQUIRED
| SECMODE_SIGN_ENABLED
))
50 pSMB
->req
.hdr
.Flags2
|= SMBFLG2_SECURITY_SIGNATURE
;
52 if (ses
->capabilities
& CAP_UNICODE
) {
53 pSMB
->req
.hdr
.Flags2
|= SMBFLG2_UNICODE
;
54 capabilities
|= CAP_UNICODE
;
56 if (ses
->capabilities
& CAP_STATUS32
) {
57 pSMB
->req
.hdr
.Flags2
|= SMBFLG2_ERR_STATUS
;
58 capabilities
|= CAP_STATUS32
;
60 if (ses
->capabilities
& CAP_DFS
) {
61 pSMB
->req
.hdr
.Flags2
|= SMBFLG2_DFS
;
62 capabilities
|= CAP_DFS
;
65 /* BB check whether to init vcnum BB */
69 CIFS_SessSetup(unsigned int xid
, struct cifsSesInfo
*ses
, const int type
,
70 int * pNTLMv2_flg
, const struct nls_table
*nls_cp
)
74 struct smb_hdr
*smb_buffer
;
76 SESSION_SETUP_ANDX
*pSMB
;
82 cFYI(1,("SStp type: %d",type
));
83 if(type
< CIFS_NTLM
) {
84 #ifndef CONFIG_CIFS_WEAK_PW_HASH
85 /* LANMAN and plaintext are less secure and off by default.
86 So we make this explicitly be turned on in kconfig (in the
87 build) and turned on at runtime (changed from the default)
88 in proc/fs/cifs or via mount parm. Unfortunately this is
89 needed for old Win (e.g. Win95), some obscure NAS and OS/2 */
92 wct
= 10; /* lanman 2 style sessionsetup */
93 } else if(type
< CIFS_NTLMSSP_NEG
)
94 wct
= 13; /* old style NTLM sessionsetup */
95 else /* same size for negotiate or auth, NTLMSSP or extended security */
98 rc
= small_smb_init_no_tc(SMB_COM_SESSION_SETUP_ANDX
, wct
, ses
,
99 (void **)&smb_buffer
);
103 pSMB
= (SESSION_SETUP_ANDX
*)smb_buffer
;
105 capabilities
= cifs_ssetup_hdr(ses
, pSMB
);
106 bcc_ptr
= pByteArea(smb_buffer
);
107 if(type
> CIFS_NTLM
) {
108 pSMB
->req
.hdr
.Flags2
|= SMBFLG2_EXT_SEC
;
109 capabilities
|= CAP_EXTENDED_SECURITY
;
110 pSMB
->req
.Capabilities
= cpu_to_le32(capabilities
);
111 /* BB set password lengths */
112 } else if(type
< CIFS_NTLM
) /* lanman */ {
113 /* no capabilities flags in old lanman negotiation */
114 /* pSMB->old_req.PasswordLength = */ /* BB fixme BB */
115 } else /* type CIFS_NTLM */ {
116 pSMB
->req_no_secext
.Capabilities
= cpu_to_le32(capabilities
);
117 pSMB
->req_no_secext
.CaseInsensitivePasswordLength
=
118 cpu_to_le16(CIFS_SESSION_KEY_SIZE
);
119 pSMB
->req_no_secext
.CaseSensitivePasswordLength
=
120 cpu_to_le16(CIFS_SESSION_KEY_SIZE
);
124 /* copy session key */
126 /* if Unicode, align strings to two byte boundary */
128 /* copy user name */ /* BB Do we need to special case null user name? */
130 /* copy domain name */
132 /* copy Linux version */
134 /* copy network operating system name */
136 /* update bcc and smb buffer length */
138 /* rc = SendReceive2(xid, ses, iov, num_iovecs, &resp_buf_type, 0); */
139 /* SMB request buf freed in SendReceive2 */
143 #endif /* CONFIG_CIFS_EXPERIMENTAL */