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23e91d8b7c
As we move to common code between client and server, we have been asked to make the names less confusing, and refer less to "cifs" and more to words which include "smb" instead to e.g. "smbfs" for the client (we already have "ksmbd" for the kernel server, and "smbd" for the user space Samba daemon). So to be more consistent in the naming of common code between client and server and reduce the risk of merge conflicts as more common code is added - rename "cifs_common" to "smbfs_common" (in future releases we also will rename the fs/cifs directory to fs/smbfs) Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com>
91 lines
2.2 KiB
C
91 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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Unix SMB/Netbios implementation.
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Version 1.9.
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SMB parameters and setup
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Copyright (C) Andrew Tridgell 1992-2000
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Copyright (C) Luke Kenneth Casson Leighton 1996-2000
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Modified by Jeremy Allison 1995.
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Copyright (C) Andrew Bartlett <abartlet@samba.org> 2002-2003
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Modified by Steve French (sfrench@us.ibm.com) 2002-2003
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*/
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/fips.h>
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#include <linux/fs.h>
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#include <linux/string.h>
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#include <linux/kernel.h>
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#include <linux/random.h>
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#include "cifs_fs_sb.h"
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#include "cifs_unicode.h"
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#include "cifspdu.h"
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#include "cifsglob.h"
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#include "cifs_debug.h"
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#include "cifsproto.h"
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#include "../smbfs_common/md4.h"
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#ifndef false
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#define false 0
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#endif
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#ifndef true
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#define true 1
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#endif
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/* following came from the other byteorder.h to avoid include conflicts */
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#define CVAL(buf,pos) (((unsigned char *)(buf))[pos])
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#define SSVALX(buf,pos,val) (CVAL(buf,pos)=(val)&0xFF,CVAL(buf,pos+1)=(val)>>8)
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#define SSVAL(buf,pos,val) SSVALX((buf),(pos),((__u16)(val)))
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/* produce a md4 message digest from data of length n bytes */
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static int
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mdfour(unsigned char *md4_hash, unsigned char *link_str, int link_len)
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{
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int rc;
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struct md4_ctx mctx;
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rc = cifs_md4_init(&mctx);
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if (rc) {
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cifs_dbg(VFS, "%s: Could not init MD4\n", __func__);
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goto mdfour_err;
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}
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rc = cifs_md4_update(&mctx, link_str, link_len);
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if (rc) {
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cifs_dbg(VFS, "%s: Could not update MD4\n", __func__);
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goto mdfour_err;
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}
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rc = cifs_md4_final(&mctx, md4_hash);
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if (rc)
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cifs_dbg(VFS, "%s: Could not finalize MD4\n", __func__);
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mdfour_err:
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return rc;
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}
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/*
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* Creates the MD4 Hash of the users password in NT UNICODE.
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*/
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int
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E_md4hash(const unsigned char *passwd, unsigned char *p16,
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const struct nls_table *codepage)
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{
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int rc;
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int len;
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__le16 wpwd[129];
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/* Password cannot be longer than 128 characters */
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if (passwd) /* Password must be converted to NT unicode */
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len = cifs_strtoUTF16(wpwd, passwd, 128, codepage);
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else {
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len = 0;
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*wpwd = 0; /* Ensure string is null terminated */
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}
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rc = mdfour(p16, (unsigned char *) wpwd, len * sizeof(__le16));
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memzero_explicit(wpwd, sizeof(wpwd));
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return rc;
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}
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