s3: vfs: add SMB_VFS_GETXATTRAT_SEND/RECV

[nivanova/samba-autobuild/.git] / examples / VFS / skel_transparent.c

diff --git a/examples/VFS/skel_transparent.c b/examples/VFS/skel_transparent.c
index d84e6deee479feae075f1c9b13f8bb769804c561..503c14edcc0ab25a42176a357dd7f6e4be3cdce1 100644 (file)
--- a/examples/VFS/skel_transparent.c
+++ b/examples/VFS/skel_transparent.c
@@ -1004,6 +1004,93 @@ static ssize_t skel_getxattr(vfs_handle_struct *handle,
        return SMB_VFS_NEXT_GETXATTR(handle, smb_fname, name, value, size);
 }
 
+struct skel_getxattrat_state {
+       struct vfs_aio_state aio_state;
+       ssize_t xattr_size;
+       uint8_t *xattr_value;
+};
+
+static void skel_getxattrat_done(struct tevent_req *subreq);
+
+static struct tevent_req *skel_getxattrat_send(
+                       TALLOC_CTX *mem_ctx,
+                       const struct smb_vfs_ev_glue *evg,
+                       struct vfs_handle_struct *handle,
+                       files_struct *dir_fsp,
+                       const struct smb_filename *smb_fname,
+                       const char *xattr_name,
+                       size_t alloc_hint)
+{
+       struct tevent_context *ev = smb_vfs_ev_glue_ev_ctx(evg);
+       struct tevent_req *req = NULL;
+       struct skel_getxattrat_state *state = NULL;
+       struct tevent_req *subreq = NULL;
+
+       req = tevent_req_create(mem_ctx, &state,
+                               struct skel_getxattrat_state);
+       if (req == NULL) {
+               return NULL;
+       }
+
+       subreq = SMB_VFS_NEXT_GETXATTRAT_SEND(state,
+                                             evg,
+                                             handle,
+                                             dir_fsp,
+                                             smb_fname,
+                                             xattr_name,
+                                             alloc_hint);
+       if (tevent_req_nomem(subreq, req)) {
+               return tevent_req_post(req, ev);
+       }
+       tevent_req_set_callback(subreq, skel_getxattrat_done, req);
+
+       return req;
+}
+
+static void skel_getxattrat_done(struct tevent_req *subreq)
+{
+       struct tevent_req *req = tevent_req_callback_data(
+               subreq, struct tevent_req);
+       struct skel_getxattrat_state *state = tevent_req_data(
+               req, struct skel_getxattrat_state);
+
+       state->xattr_size = SMB_VFS_NEXT_GETXATTRAT_RECV(subreq,
+                                                        &state->aio_state,
+                                                        state,
+                                                        &state->xattr_value);
+       TALLOC_FREE(subreq);
+       if (state->xattr_size == -1) {
+               tevent_req_error(req, state->aio_state.error);
+               return;
+       }
+
+       tevent_req_done(req);
+}
+
+static ssize_t skel_getxattrat_recv(struct tevent_req *req,
+                                   struct vfs_aio_state *aio_state,
+                                   TALLOC_CTX *mem_ctx,
+                                   uint8_t **xattr_value)
+{
+       struct skel_getxattrat_state *state = tevent_req_data(
+               req, struct skel_getxattrat_state);
+       ssize_t xattr_size;
+
+       if (tevent_req_is_unix_error(req, &aio_state->error)) {
+               tevent_req_received(req);
+               return -1;
+       }
+
+       *aio_state = state->aio_state;
+       xattr_size = state->xattr_size;
+       if (xattr_value != NULL) {
+               *xattr_value = talloc_move(mem_ctx, &state->xattr_value);
+       }
+
+       tevent_req_received(req);
+       return xattr_size;
+}
+
 static ssize_t skel_fgetxattr(vfs_handle_struct *handle,
                              struct files_struct *fsp, const char *name,
                              void *value, size_t size)
@@ -1233,6 +1320,8 @@ static struct vfs_fn_pointers skel_transparent_fns = {
 
        /* EA operations. */
        .getxattr_fn = skel_getxattr,
+       .getxattrat_send_fn = skel_getxattrat_send,
+       .getxattrat_recv_fn = skel_getxattrat_recv,
        .fgetxattr_fn = skel_fgetxattr,
        .listxattr_fn = skel_listxattr,
        .flistxattr_fn = skel_flistxattr,