+static __u16 convert_disposition(int disposition)
+{
+ __u16 ofun = 0;
+
+ switch (disposition) {
+ case FILE_SUPERSEDE:
+ ofun = SMBOPEN_OCREATE | SMBOPEN_OTRUNC;
+ break;
+ case FILE_OPEN:
+ ofun = SMBOPEN_OAPPEND;
+ break;
+ case FILE_CREATE:
+ ofun = SMBOPEN_OCREATE;
+ break;
+ case FILE_OPEN_IF:
+ ofun = SMBOPEN_OCREATE | SMBOPEN_OAPPEND;
+ break;
+ case FILE_OVERWRITE:
+ ofun = SMBOPEN_OTRUNC;
+ break;
+ case FILE_OVERWRITE_IF:
+ ofun = SMBOPEN_OCREATE | SMBOPEN_OTRUNC;
+ break;
+ default:
+ cFYI(1,("unknown disposition %d",disposition));
+ ofun = SMBOPEN_OAPPEND; /* regular open */
+ }
+ return ofun;
+}
+
+int
+SMBLegacyOpen(const int xid, struct cifsTconInfo *tcon,
+ const char *fileName, const int openDisposition,
+ const int access_flags, const int create_options, __u16 * netfid,
+ int *pOplock, FILE_ALL_INFO * pfile_info,
+ const struct nls_table *nls_codepage, int remap)
+{
+ int rc = -EACCES;
+ OPENX_REQ *pSMB = NULL;
+ OPENX_RSP *pSMBr = NULL;
+ int bytes_returned;
+ int name_len;
+ __u16 count;
+
+OldOpenRetry:
+ rc = smb_init(SMB_COM_OPEN_ANDX, 15, tcon, (void **) &pSMB,
+ (void **) &pSMBr);
+ if (rc)
+ return rc;
+
+ pSMB->AndXCommand = 0xFF; /* none */
+
+ if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
+ count = 1; /* account for one byte pad to word boundary */
+ name_len =
+ cifsConvertToUCS((__le16 *) (pSMB->fileName + 1),
+ fileName, PATH_MAX, nls_codepage, remap);
+ name_len++; /* trailing null */
+ name_len *= 2;
+ } else { /* BB improve check for buffer overruns BB */
+ count = 0; /* no pad */
+ name_len = strnlen(fileName, PATH_MAX);
+ name_len++; /* trailing null */
+ strncpy(pSMB->fileName, fileName, name_len);
+ }
+ if (*pOplock & REQ_OPLOCK)
+ pSMB->OpenFlags = cpu_to_le16(REQ_OPLOCK);
+ else if (*pOplock & REQ_BATCHOPLOCK) {
+ pSMB->OpenFlags = cpu_to_le16(REQ_BATCHOPLOCK);
+ }
+ pSMB->OpenFlags |= cpu_to_le16(REQ_MORE_INFO);
+ /* BB fixme add conversion for access_flags to bits 0 - 2 of mode */
+ /* 0 = read
+ 1 = write
+ 2 = rw
+ 3 = execute
+ */
+ pSMB->Mode = cpu_to_le16(2);
+ pSMB->Mode |= cpu_to_le16(0x40); /* deny none */
+ /* set file as system file if special file such
+ as fifo and server expecting SFU style and
+ no Unix extensions */
+
+ if(create_options & CREATE_OPTION_SPECIAL)
+ pSMB->FileAttributes = cpu_to_le16(ATTR_SYSTEM);
+ else
+ pSMB->FileAttributes = cpu_to_le16(0/*ATTR_NORMAL*/); /* BB FIXME */
+
+ /* if ((omode & S_IWUGO) == 0)
+ pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY);*/
+ /* Above line causes problems due to vfs splitting create into two
+ pieces - need to set mode after file created not while it is
+ being created */
+
+ /* BB FIXME BB */
+/* pSMB->CreateOptions = cpu_to_le32(create_options & CREATE_OPTIONS_MASK); */
+ /* BB FIXME END BB */
+
+ pSMB->Sattr = cpu_to_le16(ATTR_HIDDEN | ATTR_SYSTEM | ATTR_DIRECTORY);
+ pSMB->OpenFunction = cpu_to_le16(convert_disposition(openDisposition));
+ count += name_len;
+ pSMB->hdr.smb_buf_length += count;
+
+ pSMB->ByteCount = cpu_to_le16(count);
+ /* long_op set to 1 to allow for oplock break timeouts */
+ rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
+ (struct smb_hdr *) pSMBr, &bytes_returned, 1);
+ cifs_stats_inc(&tcon->num_opens);
+ if (rc) {
+ cFYI(1, ("Error in Open = %d", rc));
+ } else {
+ /* BB verify if wct == 15 */
+
+/* *pOplock = pSMBr->OplockLevel; */ /* BB take from action field BB */
+
+ *netfid = pSMBr->Fid; /* cifs fid stays in le */
+ /* Let caller know file was created so we can set the mode. */
+ /* Do we care about the CreateAction in any other cases? */
+ /* BB FIXME BB */
+/* if(cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction)
+ *pOplock |= CIFS_CREATE_ACTION; */
+ /* BB FIXME END */
+
+ if(pfile_info) {
+ pfile_info->CreationTime = 0; /* BB convert CreateTime*/
+ pfile_info->LastAccessTime = 0; /* BB fixme */
+ pfile_info->LastWriteTime = 0; /* BB fixme */
+ pfile_info->ChangeTime = 0; /* BB fixme */
+ pfile_info->Attributes =
+ cpu_to_le32(le16_to_cpu(pSMBr->FileAttributes));
+ /* the file_info buf is endian converted by caller */
+ pfile_info->AllocationSize =
+ cpu_to_le64(le32_to_cpu(pSMBr->EndOfFile));
+ pfile_info->EndOfFile = pfile_info->AllocationSize;
+ pfile_info->NumberOfLinks = cpu_to_le32(1);
+ }
+ }
+
+ cifs_buf_release(pSMB);
+ if (rc == -EAGAIN)
+ goto OldOpenRetry;
+ return rc;
+}
+