mirror of https://gitee.com/openkylin/linux.git
[CIFS] NTLMSSP support moving into new file, old dead code removed
Remove dead NTLMSSP support from connect.c prior to addition of the new code to replace it. Signed-off-by: Steve French <sfrench@us.ibm.com>
This commit is contained in:
Steve French
parent
051a2a0d32
commit
2edd6c5b05
|
|
@ -2605,736 +2605,6 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
|
|||
return rc;
|
||||
}
|
||||
|
||||
static int
|
||||
CIFSNTLMSSPNegotiateSessSetup(unsigned int xid,
|
||||
struct cifsSesInfo *ses, bool *pNTLMv2_flag,
|
||||
const struct nls_table *nls_codepage)
|
||||
{
|
||||
struct smb_hdr *smb_buffer;
|
||||
struct smb_hdr *smb_buffer_response;
|
||||
SESSION_SETUP_ANDX *pSMB;
|
||||
SESSION_SETUP_ANDX *pSMBr;
|
||||
char *bcc_ptr;
|
||||
char *domain;
|
||||
int rc = 0;
|
||||
int remaining_words = 0;
|
||||
int bytes_returned = 0;
|
||||
int len;
|
||||
int SecurityBlobLength = sizeof(NEGOTIATE_MESSAGE);
|
||||
PNEGOTIATE_MESSAGE SecurityBlob;
|
||||
PCHALLENGE_MESSAGE SecurityBlob2;
|
||||
__u32 negotiate_flags, capabilities;
|
||||
__u16 count;
|
||||
|
||||
cFYI(1, ("In NTLMSSP sesssetup (negotiate)"));
|
||||
if (ses == NULL)
|
||||
return -EINVAL;
|
||||
domain = ses->domainName;
|
||||
*pNTLMv2_flag = false;
|
||||
smb_buffer = cifs_buf_get();
|
||||
if (smb_buffer == NULL) {
|
||||
return -ENOMEM;
|
||||
}
|
||||
smb_buffer_response = smb_buffer;
|
||||
pSMB = (SESSION_SETUP_ANDX *) smb_buffer;
|
||||
pSMBr = (SESSION_SETUP_ANDX *) smb_buffer_response;
|
||||
|
||||
/* send SMBsessionSetup here */
|
||||
header_assemble(smb_buffer, SMB_COM_SESSION_SETUP_ANDX,
|
||||
NULL /* no tCon exists yet */ , 12 /* wct */ );
|
||||
|
||||
smb_buffer->Mid = GetNextMid(ses->server);
|
||||
pSMB->req.hdr.Flags2 |= SMBFLG2_EXT_SEC;
|
||||
pSMB->req.hdr.Flags |= (SMBFLG_CASELESS | SMBFLG_CANONICAL_PATH_FORMAT);
|
||||
|
||||
pSMB->req.AndXCommand = 0xFF;
|
||||
pSMB->req.MaxBufferSize = cpu_to_le16(ses->server->maxBuf);
|
||||
pSMB->req.MaxMpxCount = cpu_to_le16(ses->server->maxReq);
|
||||
|
||||
if (ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
|
||||
smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE;
|
||||
|
||||
capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS |
|
||||
CAP_EXTENDED_SECURITY;
|
||||
if (ses->capabilities & CAP_UNICODE) {
|
||||
smb_buffer->Flags2 |= SMBFLG2_UNICODE;
|
||||
capabilities |= CAP_UNICODE;
|
||||
}
|
||||
if (ses->capabilities & CAP_STATUS32) {
|
||||
smb_buffer->Flags2 |= SMBFLG2_ERR_STATUS;
|
||||
capabilities |= CAP_STATUS32;
|
||||
}
|
||||
if (ses->capabilities & CAP_DFS) {
|
||||
smb_buffer->Flags2 |= SMBFLG2_DFS;
|
||||
capabilities |= CAP_DFS;
|
||||
}
|
||||
pSMB->req.Capabilities = cpu_to_le32(capabilities);
|
||||
|
||||
bcc_ptr = (char *) &pSMB->req.SecurityBlob;
|
||||
SecurityBlob = (PNEGOTIATE_MESSAGE) bcc_ptr;
|
||||
strncpy(SecurityBlob->Signature, NTLMSSP_SIGNATURE, 8);
|
||||
SecurityBlob->MessageType = NtLmNegotiate;
|
||||
negotiate_flags =
|
||||
NTLMSSP_NEGOTIATE_UNICODE | NTLMSSP_NEGOTIATE_OEM |
|
||||
NTLMSSP_REQUEST_TARGET | NTLMSSP_NEGOTIATE_NTLM |
|
||||
NTLMSSP_NEGOTIATE_56 |
|
||||
/* NTLMSSP_NEGOTIATE_ALWAYS_SIGN | */ NTLMSSP_NEGOTIATE_128;
|
||||
if (sign_CIFS_PDUs)
|
||||
negotiate_flags |= NTLMSSP_NEGOTIATE_SIGN;
|
||||
/* setup pointers to domain name and workstation name */
|
||||
bcc_ptr += SecurityBlobLength;
|
||||
|
||||
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.BufferOffset = 0;
|
||||
SecurityBlob->DomainName.Length = 0;
|
||||
SecurityBlob->DomainName.MaximumLength = 0;
|
||||
if (ses->capabilities & CAP_UNICODE) {
|
||||
if ((long) bcc_ptr % 2) {
|
||||
*bcc_ptr = 0;
|
||||
bcc_ptr++;
|
||||
}
|
||||
|
||||
bytes_returned =
|
||||
cifs_strtoUCS((__le16 *) bcc_ptr, "Linux version ",
|
||||
32, nls_codepage);
|
||||
bcc_ptr += 2 * bytes_returned;
|
||||
bytes_returned =
|
||||
cifs_strtoUCS((__le16 *) bcc_ptr, utsname()->release, 32,
|
||||
nls_codepage);
|
||||
bcc_ptr += 2 * bytes_returned;
|
||||
bcc_ptr += 2; /* null terminate Linux version */
|
||||
bytes_returned =
|
||||
cifs_strtoUCS((__le16 *) bcc_ptr, CIFS_NETWORK_OPSYS,
|
||||
64, nls_codepage);
|
||||
bcc_ptr += 2 * bytes_returned;
|
||||
*(bcc_ptr + 1) = 0;
|
||||
*(bcc_ptr + 2) = 0;
|
||||
bcc_ptr += 2; /* null terminate network opsys string */
|
||||
*(bcc_ptr + 1) = 0;
|
||||
*(bcc_ptr + 2) = 0;
|
||||
bcc_ptr += 2; /* null domain */
|
||||
} else { /* ASCII */
|
||||
strcpy(bcc_ptr, "Linux version ");
|
||||
bcc_ptr += strlen("Linux version ");
|
||||
strcpy(bcc_ptr, utsname()->release);
|
||||
bcc_ptr += strlen(utsname()->release) + 1;
|
||||
strcpy(bcc_ptr, CIFS_NETWORK_OPSYS);
|
||||
bcc_ptr += strlen(CIFS_NETWORK_OPSYS) + 1;
|
||||
bcc_ptr++; /* empty domain field */
|
||||
*bcc_ptr = 0;
|
||||
}
|
||||
SecurityBlob->NegotiateFlags = cpu_to_le32(negotiate_flags);
|
||||
pSMB->req.SecurityBlobLength = cpu_to_le16(SecurityBlobLength);
|
||||
count = (long) bcc_ptr - (long) pByteArea(smb_buffer);
|
||||
smb_buffer->smb_buf_length += count;
|
||||
pSMB->req.ByteCount = cpu_to_le16(count);
|
||||
|
||||
rc = SendReceive(xid, ses, smb_buffer, smb_buffer_response,
|
||||
&bytes_returned, CIFS_LONG_OP);
|
||||
|
||||
if (smb_buffer_response->Status.CifsError ==
|
||||
cpu_to_le32(NT_STATUS_MORE_PROCESSING_REQUIRED))
|
||||
rc = 0;
|
||||
|
||||
if (rc) {
|
||||
/* rc = map_smb_to_linux_error(smb_buffer_response); *//* done in SendReceive now */
|
||||
} else if ((smb_buffer_response->WordCount == 3)
|
||||
|| (smb_buffer_response->WordCount == 4)) {
|
||||
__u16 action = le16_to_cpu(pSMBr->resp.Action);
|
||||
__u16 blob_len = le16_to_cpu(pSMBr->resp.SecurityBlobLength);
|
||||
|
||||
if (action & GUEST_LOGIN)
|
||||
cFYI(1, ("Guest login"));
|
||||
/* Do we want to set anything in SesInfo struct when guest login? */
|
||||
|
||||
bcc_ptr = pByteArea(smb_buffer_response);
|
||||
/* response can have either 3 or 4 word count - Samba sends 3 */
|
||||
|
||||
SecurityBlob2 = (PCHALLENGE_MESSAGE) bcc_ptr;
|
||||
if (SecurityBlob2->MessageType != NtLmChallenge) {
|
||||
cFYI(1, ("Unexpected NTLMSSP message type received %d",
|
||||
SecurityBlob2->MessageType));
|
||||
} else if (ses) {
|
||||
ses->Suid = smb_buffer_response->Uid; /* UID left in le format */
|
||||
cFYI(1, ("UID = %d", ses->Suid));
|
||||
if ((pSMBr->resp.hdr.WordCount == 3)
|
||||
|| ((pSMBr->resp.hdr.WordCount == 4)
|
||||
&& (blob_len <
|
||||
pSMBr->resp.ByteCount))) {
|
||||
|
||||
if (pSMBr->resp.hdr.WordCount == 4) {
|
||||
bcc_ptr += blob_len;
|
||||
cFYI(1, ("Security Blob Length %d",
|
||||
blob_len));
|
||||
}
|
||||
|
||||
cFYI(1, ("NTLMSSP Challenge rcvd"));
|
||||
|
||||
memcpy(ses->server->cryptKey,
|
||||
SecurityBlob2->Challenge,
|
||||
CIFS_CRYPTO_KEY_SIZE);
|
||||
/* NTLMV2 flag is not for NTLMv2 password hash */
|
||||
/* if (SecurityBlob2->NegotiateFlags &
|
||||
cpu_to_le32(NTLMSSP_NEGOTIATE_NTLMV2))
|
||||
*pNTLMv2_flag = true; */ /* BB wrong */
|
||||
|
||||
if ((SecurityBlob2->NegotiateFlags &
|
||||
cpu_to_le32(NTLMSSP_NEGOTIATE_ALWAYS_SIGN))
|
||||
|| (sign_CIFS_PDUs > 1))
|
||||
ses->server->secMode |=
|
||||
SECMODE_SIGN_REQUIRED;
|
||||
if ((SecurityBlob2->NegotiateFlags &
|
||||
cpu_to_le32(NTLMSSP_NEGOTIATE_SIGN)) && (sign_CIFS_PDUs))
|
||||
ses->server->secMode |=
|
||||
SECMODE_SIGN_ENABLED;
|
||||
|
||||
if (smb_buffer->Flags2 & SMBFLG2_UNICODE) {
|
||||
if ((long) (bcc_ptr) % 2) {
|
||||
remaining_words =
|
||||
(BCC(smb_buffer_response)
|
||||
- 1) / 2;
|
||||
/* Must word align unicode strings */
|
||||
bcc_ptr++;
|
||||
} else {
|
||||
remaining_words =
|
||||
BCC
|
||||
(smb_buffer_response) / 2;
|
||||
}
|
||||
len =
|
||||
UniStrnlen((wchar_t *) bcc_ptr,
|
||||
remaining_words - 1);
|
||||
/* We look for obvious messed up bcc or strings in response so we do not go off
|
||||
the end since (at least) WIN2K and Windows XP have a major bug in not null
|
||||
terminating last Unicode string in response */
|
||||
kfree(ses->serverOS);
|
||||
ses->serverOS =
|
||||
kzalloc(2 * (len + 1), GFP_KERNEL);
|
||||
cifs_strfromUCS_le(ses->serverOS,
|
||||
(__le16 *)
|
||||
bcc_ptr, len,
|
||||
nls_codepage);
|
||||
bcc_ptr += 2 * (len + 1);
|
||||
remaining_words -= len + 1;
|
||||
ses->serverOS[2 * len] = 0;
|
||||
ses->serverOS[1 + (2 * len)] = 0;
|
||||
if (remaining_words > 0) {
|
||||
len = UniStrnlen((wchar_t *)
|
||||
bcc_ptr,
|
||||
remaining_words
|
||||
- 1);
|
||||
kfree(ses->serverNOS);
|
||||
ses->serverNOS =
|
||||
kzalloc(2 * (len + 1),
|
||||
GFP_KERNEL);
|
||||
cifs_strfromUCS_le(ses->
|
||||
serverNOS,
|
||||
(__le16 *)
|
||||
bcc_ptr,
|
||||
len,
|
||||
nls_codepage);
|
||||
bcc_ptr += 2 * (len + 1);
|
||||
ses->serverNOS[2 * len] = 0;
|
||||
ses->serverNOS[1 +
|
||||
(2 * len)] = 0;
|
||||
remaining_words -= len + 1;
|
||||
if (remaining_words > 0) {
|
||||
len = UniStrnlen((wchar_t *) bcc_ptr, remaining_words);
|
||||
/* last string not always null terminated
|
||||
(for e.g. for Windows XP & 2000) */
|
||||
kfree(ses->serverDomain);
|
||||
ses->serverDomain =
|
||||
kzalloc(2 *
|
||||
(len +
|
||||
1),
|
||||
GFP_KERNEL);
|
||||
cifs_strfromUCS_le
|
||||
(ses->serverDomain,
|
||||
(__le16 *)bcc_ptr,
|
||||
len, nls_codepage);
|
||||
bcc_ptr +=
|
||||
2 * (len + 1);
|
||||
ses->serverDomain[2*len]
|
||||
= 0;
|
||||
ses->serverDomain
|
||||
[1 + (2 * len)]
|
||||
= 0;
|
||||
} /* else no more room so create dummy domain string */
|
||||
else {
|
||||
kfree(ses->serverDomain);
|
||||
ses->serverDomain =
|
||||
kzalloc(2,
|
||||
GFP_KERNEL);
|
||||
}
|
||||
} else { /* no room so create dummy domain and NOS string */
|
||||
kfree(ses->serverDomain);
|
||||
ses->serverDomain =
|
||||
kzalloc(2, GFP_KERNEL);
|
||||
kfree(ses->serverNOS);
|
||||
ses->serverNOS =
|
||||
kzalloc(2, GFP_KERNEL);
|
||||
}
|
||||
} else { /* ASCII */
|
||||
len = strnlen(bcc_ptr, 1024);
|
||||
if (((long) bcc_ptr + len) - (long)
|
||||
pByteArea(smb_buffer_response)
|
||||
<= BCC(smb_buffer_response)) {
|
||||
kfree(ses->serverOS);
|
||||
ses->serverOS =
|
||||
kzalloc(len + 1,
|
||||
GFP_KERNEL);
|
||||
strncpy(ses->serverOS,
|
||||
bcc_ptr, len);
|
||||
|
||||
bcc_ptr += len;
|
||||
bcc_ptr[0] = 0; /* null terminate string */
|
||||
bcc_ptr++;
|
||||
|
||||
len = strnlen(bcc_ptr, 1024);
|
||||
kfree(ses->serverNOS);
|
||||
ses->serverNOS =
|
||||
kzalloc(len + 1,
|
||||
GFP_KERNEL);
|
||||
strncpy(ses->serverNOS, bcc_ptr, len);
|
||||
bcc_ptr += len;
|
||||
bcc_ptr[0] = 0;
|
||||
bcc_ptr++;
|
||||
|
||||
len = strnlen(bcc_ptr, 1024);
|
||||
kfree(ses->serverDomain);
|
||||
ses->serverDomain =
|
||||
kzalloc(len + 1,
|
||||
GFP_KERNEL);
|
||||
strncpy(ses->serverDomain,
|
||||
bcc_ptr, len);
|
||||
bcc_ptr += len;
|
||||
bcc_ptr[0] = 0;
|
||||
bcc_ptr++;
|
||||
} else
|
||||
cFYI(1,
|
||||
("field of length %d "
|
||||
"extends beyond end of smb",
|
||||
len));
|
||||
}
|
||||
} else {
|
||||
cERROR(1, ("Security Blob Length extends beyond"
|
||||
" end of SMB"));
|
||||
}
|
||||
} else {
|
||||
cERROR(1, ("No session structure passed in."));
|
||||
}
|
||||
} else {
|
||||
cERROR(1, ("Invalid Word count %d:",
|
||||
smb_buffer_response->WordCount));
|
||||
rc = -EIO;
|
||||
}
|
||||
|
||||
cifs_buf_release(smb_buffer);
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
static int
|
||||
CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses,
|
||||
char *ntlm_session_key, bool ntlmv2_flag,
|
||||
const struct nls_table *nls_codepage)
|
||||
{
|
||||
struct smb_hdr *smb_buffer;
|
||||
struct smb_hdr *smb_buffer_response;
|
||||
SESSION_SETUP_ANDX *pSMB;
|
||||
SESSION_SETUP_ANDX *pSMBr;
|
||||
char *bcc_ptr;
|
||||
char *user;
|
||||
char *domain;
|
||||
int rc = 0;
|
||||
int remaining_words = 0;
|
||||
int bytes_returned = 0;
|
||||
int len;
|
||||
int SecurityBlobLength = sizeof(AUTHENTICATE_MESSAGE);
|
||||
PAUTHENTICATE_MESSAGE SecurityBlob;
|
||||
__u32 negotiate_flags, capabilities;
|
||||
__u16 count;
|
||||
|
||||
cFYI(1, ("In NTLMSSPSessSetup (Authenticate)"));
|
||||
if (ses == NULL)
|
||||
return -EINVAL;
|
||||
user = ses->userName;
|
||||
domain = ses->domainName;
|
||||
smb_buffer = cifs_buf_get();
|
||||
if (smb_buffer == NULL) {
|
||||
return -ENOMEM;
|
||||
}
|
||||
smb_buffer_response = smb_buffer;
|
||||
pSMB = (SESSION_SETUP_ANDX *)smb_buffer;
|
||||
pSMBr = (SESSION_SETUP_ANDX *)smb_buffer_response;
|
||||
|
||||
/* send SMBsessionSetup here */
|
||||
header_assemble(smb_buffer, SMB_COM_SESSION_SETUP_ANDX,
|
||||
NULL /* no tCon exists yet */ , 12 /* wct */ );
|
||||
|
||||
smb_buffer->Mid = GetNextMid(ses->server);
|
||||
pSMB->req.hdr.Flags |= (SMBFLG_CASELESS | SMBFLG_CANONICAL_PATH_FORMAT);
|
||||
pSMB->req.hdr.Flags2 |= SMBFLG2_EXT_SEC;
|
||||
pSMB->req.AndXCommand = 0xFF;
|
||||
pSMB->req.MaxBufferSize = cpu_to_le16(ses->server->maxBuf);
|
||||
pSMB->req.MaxMpxCount = cpu_to_le16(ses->server->maxReq);
|
||||
|
||||
pSMB->req.hdr.Uid = ses->Suid;
|
||||
|
||||
if (ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
|
||||
smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE;
|
||||
|
||||
capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS |
|
||||
CAP_EXTENDED_SECURITY;
|
||||
if (ses->capabilities & CAP_UNICODE) {
|
||||
smb_buffer->Flags2 |= SMBFLG2_UNICODE;
|
||||
capabilities |= CAP_UNICODE;
|
||||
}
|
||||
if (ses->capabilities & CAP_STATUS32) {
|
||||
smb_buffer->Flags2 |= SMBFLG2_ERR_STATUS;
|
||||
capabilities |= CAP_STATUS32;
|
||||
}
|
||||
if (ses->capabilities & CAP_DFS) {
|
||||
smb_buffer->Flags2 |= SMBFLG2_DFS;
|
||||
capabilities |= CAP_DFS;
|
||||
}
|
||||
pSMB->req.Capabilities = cpu_to_le32(capabilities);
|
||||
|
||||
bcc_ptr = (char *)&pSMB->req.SecurityBlob;
|
||||
SecurityBlob = (PAUTHENTICATE_MESSAGE)bcc_ptr;
|
||||
strncpy(SecurityBlob->Signature, NTLMSSP_SIGNATURE, 8);
|
||||
SecurityBlob->MessageType = NtLmAuthenticate;
|
||||
bcc_ptr += SecurityBlobLength;
|
||||
negotiate_flags = NTLMSSP_NEGOTIATE_UNICODE | NTLMSSP_REQUEST_TARGET |
|
||||
NTLMSSP_NEGOTIATE_NTLM | NTLMSSP_NEGOTIATE_TARGET_INFO |
|
||||
NTLMSSP_NEGOTIATE_56 | NTLMSSP_NEGOTIATE_128 |
|
||||
NTLMSSP_NEGOTIATE_EXTENDED_SEC;
|
||||
if (sign_CIFS_PDUs)
|
||||
negotiate_flags |= /* NTLMSSP_NEGOTIATE_ALWAYS_SIGN |*/ NTLMSSP_NEGOTIATE_SIGN;
|
||||
|
||||
/* setup pointers to domain name and workstation name */
|
||||
|
||||
SecurityBlob->WorkstationName.BufferOffset = 0;
|
||||
SecurityBlob->WorkstationName.Length = 0;
|
||||
SecurityBlob->WorkstationName.MaximumLength = 0;
|
||||
SecurityBlob->SessionKey.Length = 0;
|
||||
SecurityBlob->SessionKey.MaximumLength = 0;
|
||||
SecurityBlob->SessionKey.BufferOffset = 0;
|
||||
|
||||
SecurityBlob->LmChallengeResponse.Length = 0;
|
||||
SecurityBlob->LmChallengeResponse.MaximumLength = 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.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.BufferOffset = 0;
|
||||
SecurityBlob->DomainName.Length = 0;
|
||||
SecurityBlob->DomainName.MaximumLength = 0;
|
||||
} else {
|
||||
__u16 ln = cifs_strtoUCS((__le16 *) bcc_ptr, domain, 64,
|
||||
nls_codepage);
|
||||
ln *= 2;
|
||||
SecurityBlob->DomainName.MaximumLength =
|
||||
cpu_to_le16(ln);
|
||||
SecurityBlob->DomainName.BufferOffset =
|
||||
cpu_to_le32(SecurityBlobLength);
|
||||
bcc_ptr += ln;
|
||||
SecurityBlobLength += ln;
|
||||
SecurityBlob->DomainName.Length = cpu_to_le16(ln);
|
||||
}
|
||||
if (user == NULL) {
|
||||
SecurityBlob->UserName.BufferOffset = 0;
|
||||
SecurityBlob->UserName.Length = 0;
|
||||
SecurityBlob->UserName.MaximumLength = 0;
|
||||
} else {
|
||||
__u16 ln = cifs_strtoUCS((__le16 *) bcc_ptr, user, 64,
|
||||
nls_codepage);
|
||||
ln *= 2;
|
||||
SecurityBlob->UserName.MaximumLength =
|
||||
cpu_to_le16(ln);
|
||||
SecurityBlob->UserName.BufferOffset =
|
||||
cpu_to_le32(SecurityBlobLength);
|
||||
bcc_ptr += ln;
|
||||
SecurityBlobLength += ln;
|
||||
SecurityBlob->UserName.Length = cpu_to_le16(ln);
|
||||
}
|
||||
|
||||
/* SecurityBlob->WorkstationName.Length =
|
||||
cifs_strtoUCS((__le16 *) bcc_ptr, "AMACHINE",64, nls_codepage);
|
||||
SecurityBlob->WorkstationName.Length *= 2;
|
||||
SecurityBlob->WorkstationName.MaximumLength =
|
||||
cpu_to_le16(SecurityBlob->WorkstationName.Length);
|
||||
SecurityBlob->WorkstationName.BufferOffset =
|
||||
cpu_to_le32(SecurityBlobLength);
|
||||
bcc_ptr += SecurityBlob->WorkstationName.Length;
|
||||
SecurityBlobLength += SecurityBlob->WorkstationName.Length;
|
||||
SecurityBlob->WorkstationName.Length =
|
||||
cpu_to_le16(SecurityBlob->WorkstationName.Length); */
|
||||
|
||||
if ((long) bcc_ptr % 2) {
|
||||
*bcc_ptr = 0;
|
||||
bcc_ptr++;
|
||||
}
|
||||
bytes_returned =
|
||||
cifs_strtoUCS((__le16 *) bcc_ptr, "Linux version ",
|
||||
32, nls_codepage);
|
||||
bcc_ptr += 2 * bytes_returned;
|
||||
bytes_returned =
|
||||
cifs_strtoUCS((__le16 *) bcc_ptr, utsname()->release, 32,
|
||||
nls_codepage);
|
||||
bcc_ptr += 2 * bytes_returned;
|
||||
bcc_ptr += 2; /* null term version string */
|
||||
bytes_returned =
|
||||
cifs_strtoUCS((__le16 *) bcc_ptr, CIFS_NETWORK_OPSYS,
|
||||
64, nls_codepage);
|
||||
bcc_ptr += 2 * bytes_returned;
|
||||
*(bcc_ptr + 1) = 0;
|
||||
*(bcc_ptr + 2) = 0;
|
||||
bcc_ptr += 2; /* null terminate network opsys string */
|
||||
*(bcc_ptr + 1) = 0;
|
||||
*(bcc_ptr + 2) = 0;
|
||||
bcc_ptr += 2; /* null domain */
|
||||
} else { /* ASCII */
|
||||
if (domain == NULL) {
|
||||
SecurityBlob->DomainName.BufferOffset = 0;
|
||||
SecurityBlob->DomainName.Length = 0;
|
||||
SecurityBlob->DomainName.MaximumLength = 0;
|
||||
} else {
|
||||
__u16 ln;
|
||||
negotiate_flags |= NTLMSSP_NEGOTIATE_DOMAIN_SUPPLIED;
|
||||
strncpy(bcc_ptr, domain, 63);
|
||||
ln = strnlen(domain, 64);
|
||||
SecurityBlob->DomainName.MaximumLength =
|
||||
cpu_to_le16(ln);
|
||||
SecurityBlob->DomainName.BufferOffset =
|
||||
cpu_to_le32(SecurityBlobLength);
|
||||
bcc_ptr += ln;
|
||||
SecurityBlobLength += ln;
|
||||
SecurityBlob->DomainName.Length = cpu_to_le16(ln);
|
||||
}
|
||||
if (user == NULL) {
|
||||
SecurityBlob->UserName.BufferOffset = 0;
|
||||
SecurityBlob->UserName.Length = 0;
|
||||
SecurityBlob->UserName.MaximumLength = 0;
|
||||
} else {
|
||||
__u16 ln;
|
||||
strncpy(bcc_ptr, user, 63);
|
||||
ln = strnlen(user, 64);
|
||||
SecurityBlob->UserName.MaximumLength = cpu_to_le16(ln);
|
||||
SecurityBlob->UserName.BufferOffset =
|
||||
cpu_to_le32(SecurityBlobLength);
|
||||
bcc_ptr += ln;
|
||||
SecurityBlobLength += ln;
|
||||
SecurityBlob->UserName.Length = cpu_to_le16(ln);
|
||||
}
|
||||
/* BB fill in our workstation name if known BB */
|
||||
|
||||
strcpy(bcc_ptr, "Linux version ");
|
||||
bcc_ptr += strlen("Linux version ");
|
||||
strcpy(bcc_ptr, utsname()->release);
|
||||
bcc_ptr += strlen(utsname()->release) + 1;
|
||||
strcpy(bcc_ptr, CIFS_NETWORK_OPSYS);
|
||||
bcc_ptr += strlen(CIFS_NETWORK_OPSYS) + 1;
|
||||
bcc_ptr++; /* null domain */
|
||||
*bcc_ptr = 0;
|
||||
}
|
||||
SecurityBlob->NegotiateFlags = cpu_to_le32(negotiate_flags);
|
||||
pSMB->req.SecurityBlobLength = cpu_to_le16(SecurityBlobLength);
|
||||
count = (long) bcc_ptr - (long) pByteArea(smb_buffer);
|
||||
smb_buffer->smb_buf_length += count;
|
||||
pSMB->req.ByteCount = cpu_to_le16(count);
|
||||
|
||||
rc = SendReceive(xid, ses, smb_buffer, smb_buffer_response,
|
||||
&bytes_returned, CIFS_LONG_OP);
|
||||
if (rc) {
|
||||
/* rc = map_smb_to_linux_error(smb_buffer_response) done in SendReceive now */
|
||||
} else if ((smb_buffer_response->WordCount == 3) ||
|
||||
(smb_buffer_response->WordCount == 4)) {
|
||||
__u16 action = le16_to_cpu(pSMBr->resp.Action);
|
||||
__u16 blob_len = le16_to_cpu(pSMBr->resp.SecurityBlobLength);
|
||||
if (action & GUEST_LOGIN)
|
||||
cFYI(1, ("Guest login")); /* BB Should we set anything
|
||||
in SesInfo struct ? */
|
||||
/* if (SecurityBlob2->MessageType != NtLm??) {
|
||||
cFYI("Unexpected message type on auth response is %d"));
|
||||
} */
|
||||
|
||||
if (ses) {
|
||||
cFYI(1,
|
||||
("Check challenge UID %d vs auth response UID %d",
|
||||
ses->Suid, smb_buffer_response->Uid));
|
||||
/* UID left in wire format */
|
||||
ses->Suid = smb_buffer_response->Uid;
|
||||
bcc_ptr = pByteArea(smb_buffer_response);
|
||||
/* response can have either 3 or 4 word count - Samba sends 3 */
|
||||
if ((pSMBr->resp.hdr.WordCount == 3)
|
||||
|| ((pSMBr->resp.hdr.WordCount == 4)
|
||||
&& (blob_len <
|
||||
pSMBr->resp.ByteCount))) {
|
||||
if (pSMBr->resp.hdr.WordCount == 4) {
|
||||
bcc_ptr +=
|
||||
blob_len;
|
||||
cFYI(1,
|
||||
("Security Blob Length %d ",
|
||||
blob_len));
|
||||
}
|
||||
|
||||
cFYI(1,
|
||||
("NTLMSSP response to Authenticate "));
|
||||
|
||||
if (smb_buffer->Flags2 & SMBFLG2_UNICODE) {
|
||||
if ((long) (bcc_ptr) % 2) {
|
||||
remaining_words =
|
||||
(BCC(smb_buffer_response)
|
||||
- 1) / 2;
|
||||
bcc_ptr++; /* Unicode strings must be word aligned */
|
||||
} else {
|
||||
remaining_words = BCC(smb_buffer_response) / 2;
|
||||
}
|
||||
len = UniStrnlen((wchar_t *) bcc_ptr,
|
||||
remaining_words - 1);
|
||||
/* We look for obvious messed up bcc or strings in response so we do not go off
|
||||
the end since (at least) WIN2K and Windows XP have a major bug in not null
|
||||
terminating last Unicode string in response */
|
||||
kfree(ses->serverOS);
|
||||
ses->serverOS =
|
||||
kzalloc(2 * (len + 1), GFP_KERNEL);
|
||||
cifs_strfromUCS_le(ses->serverOS,
|
||||
(__le16 *)
|
||||
bcc_ptr, len,
|
||||
nls_codepage);
|
||||
bcc_ptr += 2 * (len + 1);
|
||||
remaining_words -= len + 1;
|
||||
ses->serverOS[2 * len] = 0;
|
||||
ses->serverOS[1 + (2 * len)] = 0;
|
||||
if (remaining_words > 0) {
|
||||
len = UniStrnlen((wchar_t *)
|
||||
bcc_ptr,
|
||||
remaining_words
|
||||
- 1);
|
||||
kfree(ses->serverNOS);
|
||||
ses->serverNOS =
|
||||
kzalloc(2 * (len + 1),
|
||||
GFP_KERNEL);
|
||||
cifs_strfromUCS_le(ses->
|
||||
serverNOS,
|
||||
(__le16 *)
|
||||
bcc_ptr,
|
||||
len,
|
||||
nls_codepage);
|
||||
bcc_ptr += 2 * (len + 1);
|
||||
ses->serverNOS[2 * len] = 0;
|
||||
ses->serverNOS[1+(2*len)] = 0;
|
||||
remaining_words -= len + 1;
|
||||
if (remaining_words > 0) {
|
||||
len = UniStrnlen((wchar_t *) bcc_ptr, remaining_words);
|
||||
/* last string not always null terminated (e.g. for Windows XP & 2000) */
|
||||
kfree(ses->serverDomain);
|
||||
ses->serverDomain =
|
||||
kzalloc(2 *
|
||||
(len +
|
||||
1),
|
||||
GFP_KERNEL);
|
||||
cifs_strfromUCS_le
|
||||
(ses->
|
||||
serverDomain,
|
||||
(__le16 *)
|
||||
bcc_ptr, len,
|
||||
nls_codepage);
|
||||
bcc_ptr +=
|
||||
2 * (len + 1);
|
||||
ses->
|
||||
serverDomain[2
|
||||
* len]
|
||||
= 0;
|
||||
ses->
|
||||
serverDomain[1
|
||||
+
|
||||
(2
|
||||
*
|
||||
len)]
|
||||
= 0;
|
||||
} /* else no more room so create dummy domain string */
|
||||
else {
|
||||
kfree(ses->serverDomain);
|
||||
ses->serverDomain = kzalloc(2,GFP_KERNEL);
|
||||
}
|
||||
} else { /* no room so create dummy domain and NOS string */
|
||||
kfree(ses->serverDomain);
|
||||
ses->serverDomain = kzalloc(2, GFP_KERNEL);
|
||||
kfree(ses->serverNOS);
|
||||
ses->serverNOS = kzalloc(2, GFP_KERNEL);
|
||||
}
|
||||
} else { /* ASCII */
|
||||
len = strnlen(bcc_ptr, 1024);
|
||||
if (((long) bcc_ptr + len) -
|
||||
(long) pByteArea(smb_buffer_response)
|
||||
<= BCC(smb_buffer_response)) {
|
||||
kfree(ses->serverOS);
|
||||
ses->serverOS = kzalloc(len + 1, GFP_KERNEL);
|
||||
strncpy(ses->serverOS,bcc_ptr, len);
|
||||
|
||||
bcc_ptr += len;
|
||||
bcc_ptr[0] = 0; /* null terminate the string */
|
||||
bcc_ptr++;
|
||||
|
||||
len = strnlen(bcc_ptr, 1024);
|
||||
kfree(ses->serverNOS);
|
||||
ses->serverNOS = kzalloc(len+1,
|
||||
GFP_KERNEL);
|
||||
strncpy(ses->serverNOS,
|
||||
bcc_ptr, len);
|
||||
bcc_ptr += len;
|
||||
bcc_ptr[0] = 0;
|
||||
bcc_ptr++;
|
||||
|
||||
len = strnlen(bcc_ptr, 1024);
|
||||
kfree(ses->serverDomain);
|
||||
ses->serverDomain =
|
||||
kzalloc(len+1,
|
||||
GFP_KERNEL);
|
||||
strncpy(ses->serverDomain,
|
||||
bcc_ptr, len);
|
||||
bcc_ptr += len;
|
||||
bcc_ptr[0] = 0;
|
||||
bcc_ptr++;
|
||||
} else
|
||||
cFYI(1, ("field of length %d "
|
||||
"extends beyond end of smb ",
|
||||
len));
|
||||
}
|
||||
} else {
|
||||
cERROR(1, ("Security Blob extends beyond end "
|
||||
"of SMB"));
|
||||
}
|
||||
} else {
|
||||
cERROR(1, ("No session structure passed in."));
|
||||
}
|
||||
} else {
|
||||
cERROR(1, ("Invalid Word count %d: ",
|
||||
smb_buffer_response->WordCount));
|
||||
rc = -EIO;
|
||||
}
|
||||
|
||||
cifs_buf_release(smb_buffer);
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
int
|
||||
CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
|
||||
const char *tree, struct cifsTconInfo *tcon,
|
||||
|
|
|
|||
Loading…
Reference in New Issue