vfs_gpfs: implement SMB_VFS_OPENAT()

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

diff --git a/source3/modules/vfs_gpfs.c b/source3/modules/vfs_gpfs.c
index 79149164c3647be07536b806c5e66b13a4c731e5..e7a67b2e411c7e519c55eeac4bda72702971f2f7 100644 (file)
--- a/source3/modules/vfs_gpfs.c
+++ b/source3/modules/vfs_gpfs.c
@@ -2546,6 +2546,53 @@ static int vfs_gpfs_open(struct vfs_handle_struct *handle,
        return ret;
 }
 
+static int vfs_gpfs_openat(struct vfs_handle_struct *handle,
+                          const struct files_struct *dirfsp,
+                          const struct smb_filename *smb_fname,
+                          files_struct *fsp,
+                          int flags,
+                          mode_t mode)
+{
+       struct gpfs_config_data *config = NULL;
+       struct gpfs_fsp_extension *ext = NULL;
+       int ret;
+
+       SMB_VFS_HANDLE_GET_DATA(handle, config,
+                               struct gpfs_config_data,
+                               return -1);
+
+       if (config->hsm && !config->recalls &&
+           vfs_gpfs_fsp_is_offline(handle, fsp))
+       {
+               DBG_DEBUG("Refusing access to offline file %s\n",
+                         fsp_str_dbg(fsp));
+               errno = EACCES;
+               return -1;
+       }
+
+       if (config->syncio) {
+               flags |= O_SYNC;
+       }
+
+       ext = VFS_ADD_FSP_EXTENSION(handle, fsp, struct gpfs_fsp_extension,
+                                   NULL);
+       if (ext == NULL) {
+               errno = ENOMEM;
+               return -1;
+       }
+
+       /*
+        * Assume the file is offline until gpfs tells us it's online.
+        */
+       *ext = (struct gpfs_fsp_extension) { .offline = true };
+
+       ret = SMB_VFS_NEXT_OPENAT(handle, dirfsp, smb_fname, fsp, flags, mode);
+       if (ret == -1) {
+               VFS_REMOVE_FSP_EXTENSION(handle, fsp);
+       }
+       return ret;
+}
+
 static ssize_t vfs_gpfs_pread(vfs_handle_struct *handle, files_struct *fsp,
                              void *data, size_t n, off_t offset)
 {
@@ -2756,6 +2803,7 @@ static struct vfs_fn_pointers vfs_gpfs_fns = {
        .sendfile_fn = vfs_gpfs_sendfile,
        .fallocate_fn = vfs_gpfs_fallocate,
        .open_fn = vfs_gpfs_open,
+       .openat_fn = vfs_gpfs_openat,
        .pread_fn = vfs_gpfs_pread,
        .pread_send_fn = vfs_gpfs_pread_send,
        .pread_recv_fn = vfs_gpfs_pread_recv,