forked from Minki/linux
[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 @@ out:
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return rc;
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}
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static int
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CIFSNTLMSSPNegotiateSessSetup(unsigned int xid,
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struct cifsSesInfo *ses, bool *pNTLMv2_flag,
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const struct nls_table *nls_codepage)
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{
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struct smb_hdr *smb_buffer;
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struct smb_hdr *smb_buffer_response;
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SESSION_SETUP_ANDX *pSMB;
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SESSION_SETUP_ANDX *pSMBr;
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char *bcc_ptr;
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char *domain;
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int rc = 0;
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int remaining_words = 0;
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int bytes_returned = 0;
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int len;
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int SecurityBlobLength = sizeof(NEGOTIATE_MESSAGE);
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PNEGOTIATE_MESSAGE SecurityBlob;
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PCHALLENGE_MESSAGE SecurityBlob2;
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__u32 negotiate_flags, capabilities;
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__u16 count;
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cFYI(1, ("In NTLMSSP sesssetup (negotiate)"));
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if (ses == NULL)
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return -EINVAL;
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domain = ses->domainName;
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*pNTLMv2_flag = false;
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smb_buffer = cifs_buf_get();
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if (smb_buffer == NULL) {
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return -ENOMEM;
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}
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smb_buffer_response = smb_buffer;
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pSMB = (SESSION_SETUP_ANDX *) smb_buffer;
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pSMBr = (SESSION_SETUP_ANDX *) smb_buffer_response;
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/* send SMBsessionSetup here */
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header_assemble(smb_buffer, SMB_COM_SESSION_SETUP_ANDX,
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NULL /* no tCon exists yet */ , 12 /* wct */ );
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smb_buffer->Mid = GetNextMid(ses->server);
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pSMB->req.hdr.Flags2 |= SMBFLG2_EXT_SEC;
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pSMB->req.hdr.Flags |= (SMBFLG_CASELESS | SMBFLG_CANONICAL_PATH_FORMAT);
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pSMB->req.AndXCommand = 0xFF;
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pSMB->req.MaxBufferSize = cpu_to_le16(ses->server->maxBuf);
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pSMB->req.MaxMpxCount = cpu_to_le16(ses->server->maxReq);
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if (ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
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smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE;
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capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS |
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CAP_EXTENDED_SECURITY;
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if (ses->capabilities & CAP_UNICODE) {
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smb_buffer->Flags2 |= SMBFLG2_UNICODE;
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capabilities |= CAP_UNICODE;
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}
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if (ses->capabilities & CAP_STATUS32) {
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smb_buffer->Flags2 |= SMBFLG2_ERR_STATUS;
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capabilities |= CAP_STATUS32;
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}
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if (ses->capabilities & CAP_DFS) {
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smb_buffer->Flags2 |= SMBFLG2_DFS;
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capabilities |= CAP_DFS;
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}
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pSMB->req.Capabilities = cpu_to_le32(capabilities);
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bcc_ptr = (char *) &pSMB->req.SecurityBlob;
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SecurityBlob = (PNEGOTIATE_MESSAGE) bcc_ptr;
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strncpy(SecurityBlob->Signature, NTLMSSP_SIGNATURE, 8);
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SecurityBlob->MessageType = NtLmNegotiate;
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negotiate_flags =
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NTLMSSP_NEGOTIATE_UNICODE | NTLMSSP_NEGOTIATE_OEM |
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NTLMSSP_REQUEST_TARGET | NTLMSSP_NEGOTIATE_NTLM |
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NTLMSSP_NEGOTIATE_56 |
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/* NTLMSSP_NEGOTIATE_ALWAYS_SIGN | */ NTLMSSP_NEGOTIATE_128;
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if (sign_CIFS_PDUs)
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negotiate_flags |= NTLMSSP_NEGOTIATE_SIGN;
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/* setup pointers to domain name and workstation name */
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bcc_ptr += SecurityBlobLength;
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SecurityBlob->WorkstationName.BufferOffset = 0;
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SecurityBlob->WorkstationName.Length = 0;
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SecurityBlob->WorkstationName.MaximumLength = 0;
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/* Domain not sent on first Sesssetup in NTLMSSP, instead it is sent
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along with username on auth request (ie the response to challenge) */
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SecurityBlob->DomainName.BufferOffset = 0;
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SecurityBlob->DomainName.Length = 0;
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SecurityBlob->DomainName.MaximumLength = 0;
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if (ses->capabilities & CAP_UNICODE) {
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if ((long) bcc_ptr % 2) {
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*bcc_ptr = 0;
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bcc_ptr++;
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}
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bytes_returned =
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cifs_strtoUCS((__le16 *) bcc_ptr, "Linux version ",
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32, nls_codepage);
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bcc_ptr += 2 * bytes_returned;
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bytes_returned =
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cifs_strtoUCS((__le16 *) bcc_ptr, utsname()->release, 32,
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nls_codepage);
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bcc_ptr += 2 * bytes_returned;
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bcc_ptr += 2; /* null terminate Linux version */
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bytes_returned =
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cifs_strtoUCS((__le16 *) bcc_ptr, CIFS_NETWORK_OPSYS,
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64, nls_codepage);
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bcc_ptr += 2 * bytes_returned;
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*(bcc_ptr + 1) = 0;
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*(bcc_ptr + 2) = 0;
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bcc_ptr += 2; /* null terminate network opsys string */
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*(bcc_ptr + 1) = 0;
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*(bcc_ptr + 2) = 0;
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bcc_ptr += 2; /* null domain */
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} else { /* ASCII */
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strcpy(bcc_ptr, "Linux version ");
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bcc_ptr += strlen("Linux version ");
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strcpy(bcc_ptr, utsname()->release);
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bcc_ptr += strlen(utsname()->release) + 1;
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strcpy(bcc_ptr, CIFS_NETWORK_OPSYS);
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bcc_ptr += strlen(CIFS_NETWORK_OPSYS) + 1;
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bcc_ptr++; /* empty domain field */
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*bcc_ptr = 0;
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}
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SecurityBlob->NegotiateFlags = cpu_to_le32(negotiate_flags);
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pSMB->req.SecurityBlobLength = cpu_to_le16(SecurityBlobLength);
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count = (long) bcc_ptr - (long) pByteArea(smb_buffer);
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smb_buffer->smb_buf_length += count;
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pSMB->req.ByteCount = cpu_to_le16(count);
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rc = SendReceive(xid, ses, smb_buffer, smb_buffer_response,
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&bytes_returned, CIFS_LONG_OP);
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if (smb_buffer_response->Status.CifsError ==
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cpu_to_le32(NT_STATUS_MORE_PROCESSING_REQUIRED))
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rc = 0;
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if (rc) {
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/* rc = map_smb_to_linux_error(smb_buffer_response); *//* done in SendReceive now */
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} else if ((smb_buffer_response->WordCount == 3)
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|| (smb_buffer_response->WordCount == 4)) {
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__u16 action = le16_to_cpu(pSMBr->resp.Action);
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__u16 blob_len = le16_to_cpu(pSMBr->resp.SecurityBlobLength);
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if (action & GUEST_LOGIN)
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cFYI(1, ("Guest login"));
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/* Do we want to set anything in SesInfo struct when guest login? */
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bcc_ptr = pByteArea(smb_buffer_response);
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/* response can have either 3 or 4 word count - Samba sends 3 */
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SecurityBlob2 = (PCHALLENGE_MESSAGE) bcc_ptr;
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if (SecurityBlob2->MessageType != NtLmChallenge) {
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cFYI(1, ("Unexpected NTLMSSP message type received %d",
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SecurityBlob2->MessageType));
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} else if (ses) {
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ses->Suid = smb_buffer_response->Uid; /* UID left in le format */
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cFYI(1, ("UID = %d", ses->Suid));
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if ((pSMBr->resp.hdr.WordCount == 3)
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|| ((pSMBr->resp.hdr.WordCount == 4)
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&& (blob_len <
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pSMBr->resp.ByteCount))) {
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if (pSMBr->resp.hdr.WordCount == 4) {
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bcc_ptr += blob_len;
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cFYI(1, ("Security Blob Length %d",
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blob_len));
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}
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cFYI(1, ("NTLMSSP Challenge rcvd"));
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memcpy(ses->server->cryptKey,
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SecurityBlob2->Challenge,
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CIFS_CRYPTO_KEY_SIZE);
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/* NTLMV2 flag is not for NTLMv2 password hash */
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/* if (SecurityBlob2->NegotiateFlags &
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cpu_to_le32(NTLMSSP_NEGOTIATE_NTLMV2))
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*pNTLMv2_flag = true; */ /* BB wrong */
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if ((SecurityBlob2->NegotiateFlags &
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cpu_to_le32(NTLMSSP_NEGOTIATE_ALWAYS_SIGN))
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|| (sign_CIFS_PDUs > 1))
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ses->server->secMode |=
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SECMODE_SIGN_REQUIRED;
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if ((SecurityBlob2->NegotiateFlags &
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cpu_to_le32(NTLMSSP_NEGOTIATE_SIGN)) && (sign_CIFS_PDUs))
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ses->server->secMode |=
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SECMODE_SIGN_ENABLED;
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if (smb_buffer->Flags2 & SMBFLG2_UNICODE) {
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if ((long) (bcc_ptr) % 2) {
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remaining_words =
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(BCC(smb_buffer_response)
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- 1) / 2;
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/* Must word align unicode strings */
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bcc_ptr++;
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} else {
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remaining_words =
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BCC
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(smb_buffer_response) / 2;
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}
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len =
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UniStrnlen((wchar_t *) bcc_ptr,
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remaining_words - 1);
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/* We look for obvious messed up bcc or strings in response so we do not go off
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the end since (at least) WIN2K and Windows XP have a major bug in not null
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terminating last Unicode string in response */
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kfree(ses->serverOS);
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ses->serverOS =
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kzalloc(2 * (len + 1), GFP_KERNEL);
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cifs_strfromUCS_le(ses->serverOS,
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(__le16 *)
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bcc_ptr, len,
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nls_codepage);
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bcc_ptr += 2 * (len + 1);
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remaining_words -= len + 1;
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ses->serverOS[2 * len] = 0;
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ses->serverOS[1 + (2 * len)] = 0;
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if (remaining_words > 0) {
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len = UniStrnlen((wchar_t *)
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bcc_ptr,
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remaining_words
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- 1);
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kfree(ses->serverNOS);
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ses->serverNOS =
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kzalloc(2 * (len + 1),
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GFP_KERNEL);
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cifs_strfromUCS_le(ses->
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serverNOS,
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(__le16 *)
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bcc_ptr,
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len,
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nls_codepage);
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bcc_ptr += 2 * (len + 1);
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ses->serverNOS[2 * len] = 0;
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ses->serverNOS[1 +
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(2 * len)] = 0;
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remaining_words -= len + 1;
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if (remaining_words > 0) {
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len = UniStrnlen((wchar_t *) bcc_ptr, remaining_words);
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/* last string not always null terminated
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(for e.g. for Windows XP & 2000) */
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kfree(ses->serverDomain);
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ses->serverDomain =
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kzalloc(2 *
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(len +
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1),
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GFP_KERNEL);
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cifs_strfromUCS_le
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(ses->serverDomain,
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(__le16 *)bcc_ptr,
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len, nls_codepage);
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bcc_ptr +=
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2 * (len + 1);
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ses->serverDomain[2*len]
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= 0;
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ses->serverDomain
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[1 + (2 * len)]
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= 0;
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} /* else no more room so create dummy domain string */
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else {
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kfree(ses->serverDomain);
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ses->serverDomain =
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kzalloc(2,
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GFP_KERNEL);
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}
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} else { /* no room so create dummy domain and NOS string */
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kfree(ses->serverDomain);
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ses->serverDomain =
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kzalloc(2, GFP_KERNEL);
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kfree(ses->serverNOS);
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ses->serverNOS =
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kzalloc(2, GFP_KERNEL);
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}
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} else { /* ASCII */
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len = strnlen(bcc_ptr, 1024);
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if (((long) bcc_ptr + len) - (long)
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pByteArea(smb_buffer_response)
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<= BCC(smb_buffer_response)) {
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kfree(ses->serverOS);
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ses->serverOS =
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kzalloc(len + 1,
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GFP_KERNEL);
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strncpy(ses->serverOS,
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bcc_ptr, len);
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bcc_ptr += len;
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bcc_ptr[0] = 0; /* null terminate string */
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bcc_ptr++;
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len = strnlen(bcc_ptr, 1024);
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kfree(ses->serverNOS);
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ses->serverNOS =
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kzalloc(len + 1,
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GFP_KERNEL);
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strncpy(ses->serverNOS, bcc_ptr, len);
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bcc_ptr += len;
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bcc_ptr[0] = 0;
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bcc_ptr++;
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len = strnlen(bcc_ptr, 1024);
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kfree(ses->serverDomain);
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ses->serverDomain =
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kzalloc(len + 1,
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GFP_KERNEL);
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strncpy(ses->serverDomain,
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bcc_ptr, len);
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bcc_ptr += len;
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bcc_ptr[0] = 0;
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bcc_ptr++;
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} else
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cFYI(1,
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("field of length %d "
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"extends beyond end of smb",
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len));
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}
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} else {
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cERROR(1, ("Security Blob Length extends beyond"
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" end of SMB"));
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}
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} else {
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cERROR(1, ("No session structure passed in."));
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}
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} else {
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cERROR(1, ("Invalid Word count %d:",
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smb_buffer_response->WordCount));
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rc = -EIO;
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}
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cifs_buf_release(smb_buffer);
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return rc;
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}
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static int
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CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses,
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char *ntlm_session_key, bool ntlmv2_flag,
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const struct nls_table *nls_codepage)
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{
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struct smb_hdr *smb_buffer;
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struct smb_hdr *smb_buffer_response;
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SESSION_SETUP_ANDX *pSMB;
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SESSION_SETUP_ANDX *pSMBr;
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char *bcc_ptr;
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char *user;
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char *domain;
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int rc = 0;
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int remaining_words = 0;
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int bytes_returned = 0;
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int len;
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int SecurityBlobLength = sizeof(AUTHENTICATE_MESSAGE);
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PAUTHENTICATE_MESSAGE SecurityBlob;
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__u32 negotiate_flags, capabilities;
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__u16 count;
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cFYI(1, ("In NTLMSSPSessSetup (Authenticate)"));
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if (ses == NULL)
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return -EINVAL;
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user = ses->userName;
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domain = ses->domainName;
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smb_buffer = cifs_buf_get();
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if (smb_buffer == NULL) {
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return -ENOMEM;
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}
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smb_buffer_response = smb_buffer;
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pSMB = (SESSION_SETUP_ANDX *)smb_buffer;
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pSMBr = (SESSION_SETUP_ANDX *)smb_buffer_response;
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/* send SMBsessionSetup here */
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header_assemble(smb_buffer, SMB_COM_SESSION_SETUP_ANDX,
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NULL /* no tCon exists yet */ , 12 /* wct */ );
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smb_buffer->Mid = GetNextMid(ses->server);
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pSMB->req.hdr.Flags |= (SMBFLG_CASELESS | SMBFLG_CANONICAL_PATH_FORMAT);
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pSMB->req.hdr.Flags2 |= SMBFLG2_EXT_SEC;
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pSMB->req.AndXCommand = 0xFF;
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pSMB->req.MaxBufferSize = cpu_to_le16(ses->server->maxBuf);
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pSMB->req.MaxMpxCount = cpu_to_le16(ses->server->maxReq);
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pSMB->req.hdr.Uid = ses->Suid;
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if (ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
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smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE;
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capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS |
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CAP_EXTENDED_SECURITY;
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if (ses->capabilities & CAP_UNICODE) {
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smb_buffer->Flags2 |= SMBFLG2_UNICODE;
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capabilities |= CAP_UNICODE;
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}
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if (ses->capabilities & CAP_STATUS32) {
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smb_buffer->Flags2 |= SMBFLG2_ERR_STATUS;
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capabilities |= CAP_STATUS32;
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}
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if (ses->capabilities & CAP_DFS) {
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smb_buffer->Flags2 |= SMBFLG2_DFS;
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capabilities |= CAP_DFS;
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}
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pSMB->req.Capabilities = cpu_to_le32(capabilities);
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bcc_ptr = (char *)&pSMB->req.SecurityBlob;
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SecurityBlob = (PAUTHENTICATE_MESSAGE)bcc_ptr;
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strncpy(SecurityBlob->Signature, NTLMSSP_SIGNATURE, 8);
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SecurityBlob->MessageType = NtLmAuthenticate;
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bcc_ptr += SecurityBlobLength;
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negotiate_flags = NTLMSSP_NEGOTIATE_UNICODE | NTLMSSP_REQUEST_TARGET |
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NTLMSSP_NEGOTIATE_NTLM | NTLMSSP_NEGOTIATE_TARGET_INFO |
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NTLMSSP_NEGOTIATE_56 | NTLMSSP_NEGOTIATE_128 |
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NTLMSSP_NEGOTIATE_EXTENDED_SEC;
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if (sign_CIFS_PDUs)
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negotiate_flags |= /* NTLMSSP_NEGOTIATE_ALWAYS_SIGN |*/ NTLMSSP_NEGOTIATE_SIGN;
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/* setup pointers to domain name and workstation name */
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SecurityBlob->WorkstationName.BufferOffset = 0;
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SecurityBlob->WorkstationName.Length = 0;
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SecurityBlob->WorkstationName.MaximumLength = 0;
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SecurityBlob->SessionKey.Length = 0;
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SecurityBlob->SessionKey.MaximumLength = 0;
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SecurityBlob->SessionKey.BufferOffset = 0;
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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
Block a user