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[CIFS] Add remaining ntlmssp flags and standardize field names

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Signed-off-by: Steve French <sfrench@us.ibm.com>
This commit is contained in:
Steve French 2009-05-01 04:37:43 +00:00
parent cf398e3a11
commit e14b2fe1e6
2 changed files with 57 additions and 41 deletions
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30
fs/cifs/connect.c
View File

@ -2686,13 +2686,13 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid,
/* setup pointers to domain name and workstation name */
bcc_ptr += SecurityBlobLength;
SecurityBlob->WorkstationName.Buffer = 0;
SecurityBlob->WorkstationName.BufferOffset = 0;
SecurityBlob->WorkstationName.Length = 0;
SecurityBlob->WorkstationName.MaximumLength = 0;
/* Domain not sent on first Sesssetup in NTLMSSP, instead it is sent
along with username on auth request (ie the response to challenge) */
SecurityBlob->DomainName.Buffer = 0;
SecurityBlob->DomainName.BufferOffset = 0;
SecurityBlob->DomainName.Length = 0;
SecurityBlob->DomainName.MaximumLength = 0;
if (ses->capabilities & CAP_UNICODE) {
@ -3020,30 +3020,30 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses,
/* setup pointers to domain name and workstation name */
SecurityBlob->WorkstationName.Buffer = 0;
SecurityBlob->WorkstationName.BufferOffset = 0;
SecurityBlob->WorkstationName.Length = 0;
SecurityBlob->WorkstationName.MaximumLength = 0;
SecurityBlob->SessionKey.Length = 0;
SecurityBlob->SessionKey.MaximumLength = 0;
SecurityBlob->SessionKey.Buffer = 0;
SecurityBlob->SessionKey.BufferOffset = 0;
SecurityBlob->LmChallengeResponse.Length = 0;
SecurityBlob->LmChallengeResponse.MaximumLength = 0;
SecurityBlob->LmChallengeResponse.Buffer = 0;
SecurityBlob->LmChallengeResponse.BufferOffset = 0;
SecurityBlob->NtChallengeResponse.Length =
cpu_to_le16(CIFS_SESS_KEY_SIZE);
SecurityBlob->NtChallengeResponse.MaximumLength =
cpu_to_le16(CIFS_SESS_KEY_SIZE);
memcpy(bcc_ptr, ntlm_session_key, CIFS_SESS_KEY_SIZE);
SecurityBlob->NtChallengeResponse.Buffer =
SecurityBlob->NtChallengeResponse.BufferOffset =
cpu_to_le32(SecurityBlobLength);
SecurityBlobLength += CIFS_SESS_KEY_SIZE;
bcc_ptr += CIFS_SESS_KEY_SIZE;
if (ses->capabilities & CAP_UNICODE) {
if (domain == NULL) {
SecurityBlob->DomainName.Buffer = 0;
SecurityBlob->DomainName.BufferOffset = 0;
SecurityBlob->DomainName.Length = 0;
SecurityBlob->DomainName.MaximumLength = 0;
} else {
@ -3052,14 +3052,14 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses,
ln *= 2;
SecurityBlob->DomainName.MaximumLength =
cpu_to_le16(ln);
SecurityBlob->DomainName.Buffer =
SecurityBlob->DomainName.BufferOffset =
cpu_to_le32(SecurityBlobLength);
bcc_ptr += ln;
SecurityBlobLength += ln;
SecurityBlob->DomainName.Length = cpu_to_le16(ln);
}
if (user == NULL) {
SecurityBlob->UserName.Buffer = 0;
SecurityBlob->UserName.BufferOffset = 0;
SecurityBlob->UserName.Length = 0;
SecurityBlob->UserName.MaximumLength = 0;
} else {
@ -3068,7 +3068,7 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses,
ln *= 2;
SecurityBlob->UserName.MaximumLength =
cpu_to_le16(ln);
SecurityBlob->UserName.Buffer =
SecurityBlob->UserName.BufferOffset =
cpu_to_le32(SecurityBlobLength);
bcc_ptr += ln;
SecurityBlobLength += ln;
@ -3080,7 +3080,7 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses,
SecurityBlob->WorkstationName.Length *= 2;
SecurityBlob->WorkstationName.MaximumLength =
cpu_to_le16(SecurityBlob->WorkstationName.Length);
SecurityBlob->WorkstationName.Buffer =
SecurityBlob->WorkstationName.BufferOffset =
cpu_to_le32(SecurityBlobLength);
bcc_ptr += SecurityBlob->WorkstationName.Length;
SecurityBlobLength += SecurityBlob->WorkstationName.Length;
@ -3112,7 +3112,7 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses,
bcc_ptr += 2; /* null domain */
} else { /* ASCII */
if (domain == NULL) {
SecurityBlob->DomainName.Buffer = 0;
SecurityBlob->DomainName.BufferOffset = 0;
SecurityBlob->DomainName.Length = 0;
SecurityBlob->DomainName.MaximumLength = 0;
} else {
@ -3122,14 +3122,14 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses,
ln = strnlen(domain, 64);
SecurityBlob->DomainName.MaximumLength =
cpu_to_le16(ln);
SecurityBlob->DomainName.Buffer =
SecurityBlob->DomainName.BufferOffset =
cpu_to_le32(SecurityBlobLength);
bcc_ptr += ln;
SecurityBlobLength += ln;
SecurityBlob->DomainName.Length = cpu_to_le16(ln);
}
if (user == NULL) {
SecurityBlob->UserName.Buffer = 0;
SecurityBlob->UserName.BufferOffset = 0;
SecurityBlob->UserName.Length = 0;
SecurityBlob->UserName.MaximumLength = 0;
} else {
@ -3137,7 +3137,7 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses,
strncpy(bcc_ptr, user, 63);
ln = strnlen(user, 64);
SecurityBlob->UserName.MaximumLength = cpu_to_le16(ln);
SecurityBlob->UserName.Buffer =
SecurityBlob->UserName.BufferOffset =
cpu_to_le32(SecurityBlobLength);
bcc_ptr += ln;
SecurityBlobLength += ln;

68
fs/cifs/ntlmssp.h
View File

@ -27,29 +27,39 @@
#define UnknownMessage cpu_to_le32(8)
/* Negotiate Flags */
#define NTLMSSP_NEGOTIATE_UNICODE 0x01 /* Text strings are in unicode */
#define NTLMSSP_NEGOTIATE_OEM 0x02 /* Text strings are in OEM */
#define NTLMSSP_REQUEST_TARGET 0x04 /* Server return its auth realm */
#define NTLMSSP_NEGOTIATE_SIGN 0x0010 /* Request signature capability */
#define NTLMSSP_NEGOTIATE_SEAL 0x0020 /* Request confidentiality */
#define NTLMSSP_NEGOTIATE_DGRAM 0x0040
#define NTLMSSP_NEGOTIATE_LM_KEY 0x0080 /* Sign/seal use LM session key */
#define NTLMSSP_NEGOTIATE_NTLM 0x0200 /* NTLM authentication */
#define NTLMSSP_NEGOTIATE_DOMAIN_SUPPLIED 0x1000
#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 on same machine */
#define NTLMSSP_NEGOTIATE_ALWAYS_SIGN 0x8000 /* Sign for all security levels */
#define NTLMSSP_TARGET_TYPE_DOMAIN 0x10000
#define NTLMSSP_TARGET_TYPE_SERVER 0x20000
#define NTLMSSP_TARGET_TYPE_SHARE 0x40000
#define NTLMSSP_NEGOTIATE_NTLMV2 0x80000
#define NTLMSSP_REQUEST_INIT_RESP 0x100000
#define NTLMSSP_REQUEST_ACCEPT_RESP 0x200000
#define NTLMSSP_REQUEST_NOT_NT_KEY 0x400000
#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 NTLMSSP_NEGOTIATE_128 0x20000000
#define NTLMSSP_NEGOTIATE_KEY_XCH 0x40000000
#define NTLMSSP_NEGOTIATE_56 0x80000000
/* #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
/* Although typedefs are not commonly used for structure definitions */
/* in the Linux kernel, in this particular case they are useful */
@ -60,32 +70,36 @@
typedef struct _SECURITY_BUFFER {
__le16 Length;
__le16 MaximumLength;
__le32 Buffer; /* offset to buffer */
__le32 BufferOffset; /* offset to buffer */
} __attribute__((packed)) SECURITY_BUFFER;
typedef struct _NEGOTIATE_MESSAGE {
__u8 Signature[sizeof(NTLMSSP_SIGNATURE)];
__le32 MessageType; /* 1 */
__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; /* 2 */
__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; /* 3 */
__u8 Signature[sizeof(NTLMSSP_SIGNATURE)];
__le32 MessageType; /* NtLmsAuthenticate = 3 */
SECURITY_BUFFER LmChallengeResponse;
SECURITY_BUFFER NtChallengeResponse;
SECURITY_BUFFER DomainName;
@ -93,5 +107,7 @@ typedef struct _AUTHENTICATE_MESSAGE {
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;