-
- 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);
- if (SecurityBlob2->NegotiateFlags &
- cpu_to_le32(NTLMSSP_NEGOTIATE_NTLMV2))
- *pNTLMv2_flag = true;
-
- 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 */
- if (ses->serverOS)
- 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)) {
- if (ses->serverOS)
- 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"));
+ /* convert forward to back slashes in prepath here if needed */
+ if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) == 0)
+ convert_delimiter(cifs_sb->prepath,
+ CIFS_DIR_SEP(cifs_sb));
+ full_path = build_unc_path_to_root(volume_info, cifs_sb);
+ if (IS_ERR(full_path)) {
+ rc = PTR_ERR(full_path);
+ goto mount_fail_check;
+ }
+
+ cFYI(1, ("Getting referral for: %s", full_path));
+ rc = get_dfs_path(xid, pSesInfo , full_path + 1,
+ cifs_sb->local_nls, &num_referrals, &referrals,
+ cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
+ if (!rc && num_referrals > 0) {
+ char *fake_devname = NULL;
+
+ if (mount_data != mount_data_global)
+ kfree(mount_data);
+
+ mount_data = cifs_compose_mount_options(
+ cifs_sb->mountdata, full_path + 1,
+ referrals, &fake_devname);
+
+ free_dfs_info_array(referrals, num_referrals);
+ kfree(fake_devname);
+ kfree(full_path);
+
+ if (IS_ERR(mount_data)) {
+ rc = PTR_ERR(mount_data);
+ mount_data = NULL;
+ goto mount_fail_check;