cregit-Linux how code gets into the kernel

Release 4.11 fs/cifs/ntlmssp.h

Directory: fs/cifs
/*
 *   fs/cifs/ntlmssp.h
 *
 *   Copyright (c) International Business Machines  Corp., 2002,2007
 *   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
 */


#define NTLMSSP_SIGNATURE "NTLMSSP"
/* Message Types */

#define NtLmNegotiate     cpu_to_le32(1)

#define NtLmChallenge     cpu_to_le32(2)

#define NtLmAuthenticate  cpu_to_le32(3)

#define UnknownMessage    cpu_to_le32(8)

/* Negotiate Flags */

#define NTLMSSP_NEGOTIATE_UNICODE         0x01 
/* Text strings are unicode */

#define NTLMSSP_NEGOTIATE_OEM             0x02 
/* Text strings are in OEM */

#define NTLMSSP_REQUEST_TARGET            0x04 
/* Srv returns its auth realm */
/* define reserved9                       0x08 */

#define NTLMSSP_NEGOTIATE_SIGN          0x0010 
/* Request signing capability */

#define NTLMSSP_NEGOTIATE_SEAL          0x0020 
/* Request confidentiality */

#define NTLMSSP_NEGOTIATE_DGRAM         0x0040

#define NTLMSSP_NEGOTIATE_LM_KEY        0x0080 
/* Use LM session key */
/* defined reserved 8                   0x0100 */

#define NTLMSSP_NEGOTIATE_NTLM          0x0200 
/* NTLM authentication */

#define NTLMSSP_NEGOTIATE_NT_ONLY       0x0400 
/* Lanman not allowed */

#define NTLMSSP_ANONYMOUS               0x0800

#define NTLMSSP_NEGOTIATE_DOMAIN_SUPPLIED 0x1000 
/* reserved6 */

#define NTLMSSP_NEGOTIATE_WORKSTATION_SUPPLIED 0x2000

#define NTLMSSP_NEGOTIATE_LOCAL_CALL    0x4000 
/* client/server same machine */

#define NTLMSSP_NEGOTIATE_ALWAYS_SIGN   0x8000 
/* Sign. All security levels  */

#define NTLMSSP_TARGET_TYPE_DOMAIN     0x10000

#define NTLMSSP_TARGET_TYPE_SERVER     0x20000

#define NTLMSSP_TARGET_TYPE_SHARE      0x40000

#define NTLMSSP_NEGOTIATE_EXTENDED_SEC 0x80000 
/* NB:not related to NTLMv2 pwd*/
/* #define NTLMSSP_REQUEST_INIT_RESP     0x100000 */

#define NTLMSSP_NEGOTIATE_IDENTIFY    0x100000

#define NTLMSSP_REQUEST_ACCEPT_RESP   0x200000 
/* reserved5 */

#define NTLMSSP_REQUEST_NON_NT_KEY    0x400000

#define NTLMSSP_NEGOTIATE_TARGET_INFO 0x800000
/* #define reserved4                 0x1000000 */

#define NTLMSSP_NEGOTIATE_VERSION    0x2000000 
/* we do not set */
/* #define reserved3                 0x4000000 */
/* #define reserved2                 0x8000000 */
/* #define reserved1                0x10000000 */

#define NTLMSSP_NEGOTIATE_128       0x20000000

#define NTLMSSP_NEGOTIATE_KEY_XCH   0x40000000

#define NTLMSSP_NEGOTIATE_56        0x80000000

/* Define AV Pair Field IDs */

enum av_field_type {
	
NTLMSSP_AV_EOL = 0,
	
NTLMSSP_AV_NB_COMPUTER_NAME,
	
NTLMSSP_AV_NB_DOMAIN_NAME,
	
NTLMSSP_AV_DNS_COMPUTER_NAME,
	
NTLMSSP_AV_DNS_DOMAIN_NAME,
	
NTLMSSP_AV_DNS_TREE_NAME,
	
NTLMSSP_AV_FLAGS,
	
NTLMSSP_AV_TIMESTAMP,
	
NTLMSSP_AV_RESTRICTION,
	
NTLMSSP_AV_TARGET_NAME,
	
NTLMSSP_AV_CHANNEL_BINDINGS
};

/* Although typedefs are not commonly used for structure definitions */
/* in the Linux kernel, in this particular case they are useful      */
/* to more closely match the standards document for NTLMSSP from     */
/* OpenGroup and to make the code more closely match the standard in */
/* appearance */


typedef struct _SECURITY_BUFFER {
	
__le16 Length;
	
__le16 MaximumLength;
	
__le32 BufferOffset;	/* offset to buffer */
} 
__attribute__((packed)) SECURITY_BUFFER;


typedef struct _NEGOTIATE_MESSAGE {
	
__u8 Signature[sizeof(NTLMSSP_SIGNATURE)];
	
__le32 MessageType;     /* NtLmNegotiate = 1 */
	
__le32 NegotiateFlags;
	
SECURITY_BUFFER DomainName;	/* RFC 1001 style and ASCII */
	
SECURITY_BUFFER WorkstationName;	/* RFC 1001 and ASCII */
	/* SECURITY_BUFFER for version info not present since we
           do not set the version is present flag */
	
char DomainString[0];
	/* followed by WorkstationString */
} 

__attribute__((packed)) NEGOTIATE_MESSAGE, *PNEGOTIATE_MESSAGE;


typedef struct _CHALLENGE_MESSAGE {
	
__u8 Signature[sizeof(NTLMSSP_SIGNATURE)];
	
__le32 MessageType;   /* NtLmChallenge = 2 */
	
SECURITY_BUFFER TargetName;
	
__le32 NegotiateFlags;
	
__u8 Challenge[CIFS_CRYPTO_KEY_SIZE];
	
__u8 Reserved[8];
	
SECURITY_BUFFER TargetInfoArray;
	/* SECURITY_BUFFER for version info not present since we
           do not set the version is present flag */
} 

__attribute__((packed)) CHALLENGE_MESSAGE, *PCHALLENGE_MESSAGE;


typedef struct _AUTHENTICATE_MESSAGE {
	
__u8 Signature[sizeof(NTLMSSP_SIGNATURE)];
	
__le32 MessageType;  /* NtLmsAuthenticate = 3 */
	
SECURITY_BUFFER LmChallengeResponse;
	
SECURITY_BUFFER NtChallengeResponse;
	
SECURITY_BUFFER DomainName;
	
SECURITY_BUFFER UserName;
	
SECURITY_BUFFER WorkstationName;
	
SECURITY_BUFFER SessionKey;
	
__le32 NegotiateFlags;
	/* SECURITY_BUFFER for version info not present since we
           do not set the version is present flag */
	
char UserString[0];
} 

__attribute__((packed)) AUTHENTICATE_MESSAGE, *PAUTHENTICATE_MESSAGE;

/*
 * Size of the session key (crypto key encrypted with the password
 */

int decode_ntlmssp_challenge(char *bcc_ptr, int blob_len, struct cifs_ses *ses);
void build_ntlmssp_negotiate_blob(unsigned char *pbuffer, struct cifs_ses *ses);
int build_ntlmssp_auth_blob(unsigned char **pbuffer, u16 *buflen,
			struct cifs_ses *ses,
			const struct nls_table *nls_cp);

Overall Contributors

PersonTokensPropCommitsCommitProp
Steve French31176.04%654.55%
Pavel Shilovsky5513.45%19.09%
Shirish Pargaonkar297.09%19.09%
Al Viro133.18%218.18%
Jerome Marchand10.24%19.09%
Total409100.00%11100.00%
Directory: fs/cifs
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