vfs_gpfs: make sure get_quota does not return bogus values

[kai/samba-autobuild/.git] / source3 / modules / vfs_gpfs.c

diff --git a/source3/modules/vfs_gpfs.c b/source3/modules/vfs_gpfs.c
index 47bbb9d70fc0f333ca479c81ce6b0a6e4d5f0337..2216d1d15db0332bdabd7dffde77f895e4f9e306 100644 (file)
--- a/source3/modules/vfs_gpfs.c
+++ b/source3/modules/vfs_gpfs.c
@@ -2207,6 +2207,30 @@ static uint64_t vfs_gpfs_disk_free(vfs_handle_struct *handle, const char *path,
        return *dfree / 2;
 }
 
+static int vfs_gpfs_get_quota(vfs_handle_struct *handle, const char *path,
+                         enum SMB_QUOTA_TYPE qtype, unid_t id,
+                         SMB_DISK_QUOTA *dq)
+{
+       switch(qtype) {
+               /*
+                * User/group quota are being used for disk-free
+                * determination, which in this module is done directly
+                * by the disk-free function. It's important that this
+                * module does not return wrong quota values by mistake,
+                * which would modify the correct values set by disk-free.
+                * User/group quota are also being used for processing
+                * NT_TRANSACT_GET_USER_QUOTA in smb1 protocol, which is
+                * currently not supported by this module.
+                */
+               case SMB_USER_QUOTA_TYPE:
+               case SMB_GROUP_QUOTA_TYPE:
+                       errno = ENOSYS;
+                       return -1;
+               default:
+                       return SMB_VFS_NEXT_GET_QUOTA(handle, path, qtype, id, dq);
+       }
+}
+
 static uint32_t vfs_gpfs_capabilities(struct vfs_handle_struct *handle,
                                      enum timestamp_set_resolution *p_ts_res)
 {
@@ -2445,6 +2469,7 @@ static ssize_t vfs_gpfs_pwrite_recv(struct tevent_req *req, int *err)
 static struct vfs_fn_pointers vfs_gpfs_fns = {
        .connect_fn = vfs_gpfs_connect,
        .disk_free_fn = vfs_gpfs_disk_free,
+       .get_quota_fn = vfs_gpfs_get_quota,
        .fs_capabilities_fn = vfs_gpfs_capabilities,
        .kernel_flock_fn = vfs_gpfs_kernel_flock,
        .linux_setlease_fn = vfs_gpfs_setlease,