+void sshfwd_x11_sharing_handover(struct ssh_channel *c,
+ void *share_cs, void *share_chan,
+ const char *peer_addr, int peer_port,
+ int endian, int protomajor, int protominor,
+ const void *initial_data, int initial_len);
+void sshfwd_x11_is_local(struct ssh_channel *c);
+
+extern Socket ssh_connection_sharing_init(const char *host, int port,
+ Conf *conf, Ssh ssh, void **state);
+void share_got_pkt_from_server(void *ctx, int type,
+ unsigned char *pkt, int pktlen);
+void share_activate(void *state, const char *server_verstring);
+void sharestate_free(void *state);
+int share_ndownstreams(void *state);
+
+void ssh_connshare_log(Ssh ssh, int event, const char *logtext,
+ const char *ds_err, const char *us_err);
+unsigned ssh_alloc_sharing_channel(Ssh ssh, void *sharing_ctx);
+void ssh_delete_sharing_channel(Ssh ssh, unsigned localid);
+int ssh_alloc_sharing_rportfwd(Ssh ssh, const char *shost, int sport,
+ void *share_ctx);
+void ssh_sharing_queue_global_request(Ssh ssh, void *share_ctx);
+struct X11FakeAuth *ssh_sharing_add_x11_display(Ssh ssh, int authtype,
+ void *share_cs,
+ void *share_chan);
+void ssh_sharing_remove_x11_display(Ssh ssh, struct X11FakeAuth *auth);
+void ssh_send_packet_from_downstream(Ssh ssh, unsigned id, int type,
+ const void *pkt, int pktlen,
+ const char *additional_log_text);
+void ssh_sharing_downstream_connected(Ssh ssh, unsigned id);
+void ssh_sharing_downstream_disconnected(Ssh ssh, unsigned id);
+void ssh_sharing_logf(Ssh ssh, unsigned id, const char *logfmt, ...);
+int ssh_agent_forwarding_permitted(Ssh ssh);
+void share_setup_x11_channel(void *csv, void *chanv,
+ unsigned upstream_id, unsigned server_id,
+ unsigned server_currwin, unsigned server_maxpkt,
+ unsigned client_adjusted_window,
+ const char *peer_addr, int peer_port, int endian,
+ int protomajor, int protominor,
+ const void *initial_data, int initial_len);