Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.git

[sfrench/cifs-2.6.git] / fs / cifs / cifssmb.c

diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 217323b0c8966ae62db2683038adcda6d53dce3b..9d7bbd225effd0383b32264e832a35a33fd6d36c 100644 (file)
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -1,7 +1,7 @@
 /*
  *   fs/cifs/cifssmb.c
  *
- *   Copyright (C) International Business Machines  Corp., 2002,2005
+ *   Copyright (C) International Business Machines  Corp., 2002,2006
  *   Author(s): Steve French (sfrench@us.ibm.com)
  *
  *   Contains the routines for constructing the SMB PDUs themselves
@@ -186,7 +186,35 @@ small_smb_init(int smb_command, int wct, struct cifsTconInfo *tcon,
                 cifs_stats_inc(&tcon->num_smbs_sent);
 
        return rc;
-}  
+}
+
+#ifdef CONFIG_CIFS_EXPERIMENTAL  
+int
+small_smb_init_no_tc(const int smb_command, const int wct, 
+                    struct cifsSesInfo *ses, void **request_buf)
+{
+       int rc;
+       struct smb_hdr * buffer;
+
+       rc = small_smb_init(smb_command, wct, NULL, request_buf);
+       if(rc)
+               return rc;
+
+       buffer = (struct smb_hdr *)*request_buf;
+       buffer->Mid = GetNextMid(ses->server);
+       if (ses->capabilities & CAP_UNICODE)
+               buffer->Flags2 |= SMBFLG2_UNICODE;
+       if (ses->capabilities & CAP_STATUS32)
+               buffer->Flags2 |= SMBFLG2_ERR_STATUS;
+
+       /* uid, tid can stay at zero as set in header assemble */
+
+       /* BB add support for turning on the signing when 
+       this function is used after 1st of session setup requests */
+
+       return rc;
+}
+#endif  /* CONFIG_CIFS_EXPERIMENTAL */
 
 /* If the return code is zero, this function must fill in request_buf pointer */
 static int
@@ -1048,13 +1076,14 @@ CIFSSMBRead(const int xid, struct cifsTconInfo *tcon,
                        cifs_small_buf_release(iov[0].iov_base);
                else if(resp_buf_type == CIFS_LARGE_BUFFER)
                        cifs_buf_release(iov[0].iov_base);
-       } else /* return buffer to caller to free */ /* BB FIXME how do we tell caller if it is not a large buffer */ {
-               *buf = iov[0].iov_base;
+       } else if(resp_buf_type != CIFS_NO_BUFFER) {
+               /* return buffer to caller to free */ 
+               *buf = iov[0].iov_base;         
                if(resp_buf_type == CIFS_SMALL_BUFFER)
                        *pbuf_type = CIFS_SMALL_BUFFER;
                else if(resp_buf_type == CIFS_LARGE_BUFFER)
                        *pbuf_type = CIFS_LARGE_BUFFER;
-       }
+       } /* else no valid buffer on return - leave as null */
 
        /* Note: On -EAGAIN error only caller can retry on handle based calls
                since file handle passed in no longer valid */