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Add FSCTL_QUERY_ALLOCATED_RANGES to the list of Windows ioctls we support.

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Based on a patch reported and tested by Ira Cooper <samba@ira.wakeful.net>.

Jeremy.
This commit is contained in:
Jeremy Allison 2010-04-05 19:33:55 -07:00
parent e39ed552b6
commit 15531d9df1
1 changed files with 52 additions and 0 deletions
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52
source3/smbd/nttrans.c
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@ -2215,6 +2215,58 @@ static void call_nt_transact_ioctl(connection_struct *conn,
send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
return;
}
case FSCTL_QUERY_ALLOCATED_RANGES:
{
NTSTATUS status;
uint64_t offset, length;
if (!fsp_belongs_conn(conn, req, fsp)) {
return;
}
if (data_count != 16) {
DEBUG(0,("FSCTL_QUERY_ALLOCATED_RANGES: data_count(%u) != 16 is invalid!\n",
data_count));
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
return;
}
if (max_data_count < 16) {
DEBUG(0,("FSCTL_QUERY_ALLOCATED_RANGES: max_data_count(%u) < 16 is invalid!\n",
max_data_count));
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
return;
}
offset = BVAL(pdata,0);
length = BVAL(pdata,8);
if (offset + length < offset) {
/* No 64-bit integer wrap. */
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
return;
}
status = vfs_stat_fsp(fsp);
if (!NT_STATUS_IS_OK(status)) {
reply_nterror(req, status);
return;
}
if (offset > fsp->fsp_name->st.st_ex_size ||
fsp->fsp_name->st.st_ex_size == 0 ||
length == 0) {
send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
} else {
uint64_t end = offset + length;
end = MIN(end, fsp->fsp_name->st.st_ex_size);
SBVAL(pdata,0,0);
SBVAL(pdata,8,end);
send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0,
pdata, 16);
}
return;
}
default:
if (!logged_ioctl_message) {
logged_ioctl_message = true; /* Only print this once... */