[CIFS] Add support for legacy servers part seven. Fix open for write,

begin implementation of Win9x style set file size via open then
write of zero bytes.

Signed-off-by: Steve French (sfrench@us.ibm.com)

2 files changed, 21 insertions, 4 deletions

diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index b8830118f09a..575b2281518d 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -766,7 +766,7 @@ OldOpenRetry:
         if(create_options & CREATE_OPTION_SPECIAL)
                 pSMB->FileAttributes = cpu_to_le16(ATTR_SYSTEM);
         else
-                pSMB->FileAttributes = cpu_to_le16(ATTR_NORMAL);
+                pSMB->FileAttributes = cpu_to_le16(0/*ATTR_NORMAL*/); /* BB FIXME */
 
         /* if ((omode & S_IWUGO) == 0)
                 pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY);*/
@@ -777,6 +777,8 @@ OldOpenRetry:
         /* 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 = convert_disposition(openDisposition);
         count += name_len;
         pSMB->hdr.smb_buf_length += count;
@@ -3689,7 +3691,7 @@ SetEOFRetry:
                                      PATH_MAX, nls_codepage, remap);
                 name_len++;     /* trailing null */
                 name_len *= 2;
-        } else {                /* BB improve the check for buffer overruns BB */
+        } else {        /* BB improve the check for buffer overruns BB */
                 name_len = strnlen(fileName, PATH_MAX);
                 name_len++;     /* trailing null */
                 strncpy(pSMB->FileName, fileName, name_len);
@@ -3697,7 +3699,7 @@ SetEOFRetry:
         params = 6 + name_len;
         data_count = sizeof (struct file_end_of_file_info);
         pSMB->MaxParameterCount = cpu_to_le16(2);
-        pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB size from sess */
+        pSMB->MaxDataCount = cpu_to_le16(4100);
         pSMB->MaxSetupCount = 0;
         pSMB->Reserved = 0;
         pSMB->Flags = 0;
@@ -4079,7 +4081,7 @@ setPermsRetry:
                                      PATH_MAX, nls_codepage, remap);
                 name_len++;     /* trailing null */
                 name_len *= 2;
-        } else {                /* BB improve the check for buffer overruns BB */
+        } else {        /* BB improve the check for buffer overruns BB */
                 name_len = strnlen(fileName, PATH_MAX);
                 name_len++;     /* trailing null */
                 strncpy(pSMB->FileName, fileName, name_len);
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 0fbe02ebc033..6e82e1ae03b4 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -1030,6 +1030,14 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs)
                                         /* now that we found one valid file
                                            handle no sense continuing to loop
                                            trying others, so break here */
+                                        /* if(rc == -EINVAL) {
+                                                int bytes_written;
+                                                rc = CIFSSMBWrite(xid, pTcon,
+                                                        nfid, 0,
+                                                        attrs->ia_size, 
+                                                        &bytes_written,
+                                                        NULL, NULL, long_op);
+                                        } */
                                         break;
                                 }
                         }
@@ -1048,6 +1056,13 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs)
                                            cifs_sb->mnt_cifs_flags &
                                                 CIFS_MOUNT_MAP_SPECIAL_CHR);
                         cFYI(1, (" SetEOF by path (setattrs) rc = %d", rc));
+                        /* if(rc == -EINVAL)
+                                old_style_set_eof_via_write(xid, pTcon, 
+                                                full_path, 
+                                                attrs->ia_size,
+                                                cifs_sb->local_nls,
+                                                cifs_sb->mnt_cifs_flags &
+                                                  CIFS_MOUNT_MAP_SPECIAL_CHR);*/
                 }
 
                 /* Server is ok setting allocation size implicitly - no need