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authorJeremy Allison <jra@samba.org>2010-04-05 19:33:55 -0700
committerJeremy Allison <jra@samba.org>2010-04-05 19:33:55 -0700
commit15531d9df1326a7111363b8d3540985d09027221 (patch)
treeab2cf0e417c1e99c277bffe0f5cbf5185964a592
parente39ed552b69e95217864855332e6c883466a4548 (diff)
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Add FSCTL_QUERY_ALLOCATED_RANGES to the list of Windows ioctls we support.
Based on a patch reported and tested by Ira Cooper <samba@ira.wakeful.net>. Jeremy.
-rw-r--r--source3/smbd/nttrans.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/source3/smbd/nttrans.c b/source3/smbd/nttrans.c
index b79bb0b8f2..46edc06686 100644
--- a/source3/smbd/nttrans.c
+++ b/source3/smbd/nttrans.c
@@ -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... */