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Steve French
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| --- | ||
| refs/heads/master: b580513e841d81eebf0d7b02f412be0882c2ce5f | ||
| refs/heads/master: 5815449d1bfcb22f74b0e36a8b0631d6584cb7fc |
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| /* | ||
| * 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); | ||
| } | ||
|
|
||
|
|
||
| /* rc = SendReceive2(xid, ses, iov, num_iovecs, &resp_buf_type, 0); */ | ||
|
|
||
| cifs_small_buf_release(smb_buffer); | ||
|
|
||
| return rc; | ||
| } | ||
| #endif /* CONFIG_CIFS_EXPERIMENTAL */ |