115 void	session_set_fds(struct ssh *, Session *, int, int, int, int, int);
118 int	session_setup_x11fwd(struct ssh *, Session *);
119 int	do_exec_pty(struct ssh *, Session *, const char *);
120 int	do_exec_no_pty(struct ssh *, Session *, const char *);
121 int	do_exec(struct ssh *, Session *, const char *);
122 void	do_login(struct ssh *, Session *, const char *);
123 void	do_child(struct ssh *, Session *, const char *);
127 static void do_authenticated2(struct ssh *, Authctxt *);
129 static int session_pty_req(struct ssh *, Session *);
184 auth_input_request_forwarding(struct ssh *ssh, struct passwd * pw)  in auth_input_request_forwarding()  argument
202 		ssh_packet_send_debug(ssh, "Agent forwarding disabled: "  in auth_input_request_forwarding()
224 	nc = channel_new(ssh, "auth-listener",  in auth_input_request_forwarding()
294 set_fwdpermit_from_authopts(struct ssh *ssh, const struct sshauthopt *opts)  in set_fwdpermit_from_authopts()  argument
301 		channel_clear_permission(ssh, FORWARD_USER, FORWARD_LOCAL);  in set_fwdpermit_from_authopts()
310 			channel_add_permission(ssh,  in set_fwdpermit_from_authopts()
316 		channel_clear_permission(ssh, FORWARD_USER, FORWARD_REMOTE);  in set_fwdpermit_from_authopts()
325 			channel_add_permission(ssh,  in set_fwdpermit_from_authopts()
333 do_authenticated(struct ssh *ssh, Authctxt *authctxt)  in do_authenticated()  argument
341 	set_fwdpermit_from_authopts(ssh, auth_opts);  in do_authenticated()
345 		channel_disable_admin(ssh, FORWARD_LOCAL);  in do_authenticated()
346 		channel_disable_admin(ssh, FORWARD_REMOTE);  in do_authenticated()
349 			channel_disable_admin(ssh, FORWARD_LOCAL);  in do_authenticated()
351 			channel_permit_all(ssh, FORWARD_LOCAL);  in do_authenticated()
353 			channel_disable_admin(ssh, FORWARD_REMOTE);  in do_authenticated()
355 			channel_permit_all(ssh, FORWARD_REMOTE);  in do_authenticated()
357 	auth_debug_send(ssh);  in do_authenticated()
361 	do_authenticated2(ssh, authctxt);  in do_authenticated()
363 	do_cleanup(ssh, authctxt);  in do_authenticated()
388 do_exec_no_pty(struct ssh *ssh, Session *s, const char *command)  in do_exec_no_pty()  argument
505 		do_child(ssh, s, command);  in do_exec_no_pty()
517 	ssh_packet_set_interactive(ssh, s->display != NULL,  in do_exec_no_pty()
533 	session_set_fds(ssh, s, pin[1], pout[0], perr[0],  in do_exec_no_pty()
544 	session_set_fds(ssh, s, inout[1], inout[1], err[1],  in do_exec_no_pty()
557 do_exec_pty(struct ssh *ssh, Session *s, const char *command)  in do_exec_pty()  argument
623 		do_login(ssh, s, command);  in do_exec_pty()
629 		do_child(ssh, s, command);  in do_exec_pty()
646 	ssh_packet_set_interactive(ssh, 1,  in do_exec_pty()
648 	session_set_fds(ssh, s, ptyfd, fdout, -1, 1, 1);  in do_exec_pty()
657 do_exec(struct ssh *ssh, Session *s, const char *command)  in do_exec()  argument
703 	    ssh_remote_ipaddr(ssh),  in do_exec()
704 	    ssh_remote_port(ssh),  in do_exec()
719 		ret = do_exec_pty(ssh, s, command);  in do_exec()
721 		ret = do_exec_no_pty(ssh, s, command);  in do_exec()
737 do_login(struct ssh *ssh, Session *s, const char *command)  in do_login()  argument
750 	if (ssh_packet_connection_is_on_socket(ssh)) {  in do_login()
751 		if (getpeername(ssh_packet_get_connection_in(ssh),  in do_login()
761 		    session_get_remote_name_or_ip(ssh, utmp_len,  in do_login()
982 do_setup_env(struct ssh *ssh, Session *s, const char *shell)  in do_setup_env()  argument
1183 	    ssh_remote_ipaddr(ssh), ssh_remote_port(ssh),  in do_setup_env()
1184 	    ssh_local_port(ssh));  in do_setup_env()
1187 	laddr = get_local_ipaddr(ssh_packet_get_connection_in(ssh));  in do_setup_env()
1189 	    ssh_remote_ipaddr(ssh), ssh_remote_port(ssh),  in do_setup_env()
1190 	    laddr, ssh_local_port(ssh));  in do_setup_env()
1218 do_rc_files(struct ssh *ssh, Session *s, const char *shell)  in do_rc_files()  argument
1484 child_close_fds(struct ssh *ssh)  in child_close_fds()  argument
1493 	if (ssh_packet_get_connection_in(ssh) ==  in child_close_fds()
1494 	    ssh_packet_get_connection_out(ssh))  in child_close_fds()
1495 		close(ssh_packet_get_connection_in(ssh));  in child_close_fds()
1497 		close(ssh_packet_get_connection_in(ssh));  in child_close_fds()
1498 		close(ssh_packet_get_connection_out(ssh));  in child_close_fds()
1505 	channel_close_all(ssh);  in child_close_fds()
1532 do_child(struct ssh *ssh, Session *s, const char *command)  in do_child()  argument
1540 	sshpkt_fmt_connection_id(ssh, remote_id, sizeof(remote_id));  in do_child()
1544 	ssh_packet_clear_keys(ssh);  in do_child()
1549 		child_close_fds(ssh);  in do_child()
1594 	env = do_setup_env(ssh, s, shell);  in do_child()
1607 	child_close_fds(ssh);  in do_child()
1658 	do_rc_files(ssh, s, shell);  in do_child()
1903 session_window_change_req(struct ssh *ssh, Session *s)  in session_window_change_req()  argument
1907 	if ((r = sshpkt_get_u32(ssh, &s->col)) != 0 ||  in session_window_change_req()
1908 	    (r = sshpkt_get_u32(ssh, &s->row)) != 0 ||  in session_window_change_req()
1909 	    (r = sshpkt_get_u32(ssh, &s->xpixel)) != 0 ||  in session_window_change_req()
1910 	    (r = sshpkt_get_u32(ssh, &s->ypixel)) != 0 ||  in session_window_change_req()
1911 	    (r = sshpkt_get_end(ssh)) != 0)  in session_window_change_req()
1912 		sshpkt_fatal(ssh, r, "%s: parse packet", __func__);  in session_window_change_req()
1918 session_pty_req(struct ssh *ssh, Session *s)  in session_pty_req()  argument
1927 		ssh_packet_disconnect(ssh, "Protocol error: you already have a pty.");  in session_pty_req()
1931 	if ((r = sshpkt_get_cstring(ssh, &s->term, NULL)) != 0 ||  in session_pty_req()
1932 	    (r = sshpkt_get_u32(ssh, &s->col)) != 0 ||  in session_pty_req()
1933 	    (r = sshpkt_get_u32(ssh, &s->row)) != 0 ||  in session_pty_req()
1934 	    (r = sshpkt_get_u32(ssh, &s->xpixel)) != 0 ||  in session_pty_req()
1935 	    (r = sshpkt_get_u32(ssh, &s->ypixel)) != 0)  in session_pty_req()
1936 		sshpkt_fatal(ssh, r, "%s: parse packet", __func__);  in session_pty_req()
1956 	ssh_tty_parse_modes(ssh, s->ttyfd);  in session_pty_req()
1958 	if ((r = sshpkt_get_end(ssh)) != 0)  in session_pty_req()
1959 		sshpkt_fatal(ssh, r, "%s: parse packet", __func__);  in session_pty_req()
1972 session_subsystem_req(struct ssh *ssh, Session *s)  in session_subsystem_req()  argument
1979 	if ((r = sshpkt_get_cstring(ssh, &s->subsys, NULL)) != 0 ||  in session_subsystem_req()
1980 	    (r = sshpkt_get_end(ssh)) != 0)  in session_subsystem_req()
1981 		sshpkt_fatal(ssh, r, "%s: parse packet", __func__);  in session_subsystem_req()
2001 			channel_set_xtype(ssh, s->chanid, type);  in session_subsystem_req()
2003 			success = do_exec(ssh, s, cmd) == 0;  in session_subsystem_req()
2016 session_x11_req(struct ssh *ssh, Session *s)  in session_x11_req()  argument
2026 	if ((r = sshpkt_get_u8(ssh, &single_connection)) != 0 ||  in session_x11_req()
2027 	    (r = sshpkt_get_cstring(ssh, &s->auth_proto, NULL)) != 0 ||  in session_x11_req()
2028 	    (r = sshpkt_get_cstring(ssh, &s->auth_data, NULL)) != 0 ||  in session_x11_req()
2029 	    (r = sshpkt_get_u32(ssh, &s->screen)) != 0 ||  in session_x11_req()
2030 	    (r = sshpkt_get_end(ssh)) != 0)  in session_x11_req()
2031 		sshpkt_fatal(ssh, r, "%s: parse packet", __func__);  in session_x11_req()
2037 		success = session_setup_x11fwd(ssh, s);  in session_x11_req()
2052 session_shell_req(struct ssh *ssh, Session *s)  in session_shell_req()  argument
2056 	if ((r = sshpkt_get_end(ssh)) != 0)  in session_shell_req()
2057 		sshpkt_fatal(ssh, r, "%s: parse packet", __func__);  in session_shell_req()
2059 	channel_set_xtype(ssh, s->chanid, "session:shell");  in session_shell_req()
2061 	return do_exec(ssh, s, NULL) == 0;  in session_shell_req()
2065 session_exec_req(struct ssh *ssh, Session *s)  in session_exec_req()  argument
2071 	if ((r = sshpkt_get_cstring(ssh, &command, NULL)) != 0 ||  in session_exec_req()
2072 	    (r = sshpkt_get_end(ssh)) != 0)  in session_exec_req()
2073 		sshpkt_fatal(ssh, r, "%s: parse packet", __func__);  in session_exec_req()
2075 	channel_set_xtype(ssh, s->chanid, "session:command");  in session_exec_req()
2077 	success = do_exec(ssh, s, command) == 0;  in session_exec_req()
2083 session_break_req(struct ssh *ssh, Session *s)  in session_break_req()  argument
2087 	if ((r = sshpkt_get_u32(ssh, NULL)) != 0 || /* ignore */  in session_break_req()
2088 	    (r = sshpkt_get_end(ssh)) != 0)  in session_break_req()
2089 		sshpkt_fatal(ssh, r, "%s: parse packet", __func__);  in session_break_req()
2097 session_env_req(struct ssh *ssh, Session *s)  in session_env_req()  argument
2103 	if ((r = sshpkt_get_cstring(ssh, &name, NULL)) != 0 ||  in session_env_req()
2104 	    (r = sshpkt_get_cstring(ssh, &val, NULL)) != 0 ||  in session_env_req()
2105 	    (r = sshpkt_get_end(ssh)) != 0)  in session_env_req()
2106 		sshpkt_fatal(ssh, r, "%s: parse packet", __func__);  in session_env_req()
2158 session_signal_req(struct ssh *ssh, Session *s)  in session_signal_req()  argument
2163 	if ((r = sshpkt_get_cstring(ssh, &signame, NULL)) != 0 ||  in session_signal_req()
2164 	    (r = sshpkt_get_end(ssh)) != 0) {  in session_signal_req()
2204 session_auth_agent_req(struct ssh *ssh, Session *s)  in session_auth_agent_req()  argument
2209 	if ((r = sshpkt_get_end(ssh)) != 0)  in session_auth_agent_req()
2210 		sshpkt_fatal(ssh, r, "%s: parse packet", __func__);  in session_auth_agent_req()
2220 		return auth_input_request_forwarding(ssh, s->pw);  in session_auth_agent_req()
2225 session_input_channel_req(struct ssh *ssh, Channel *c, const char *rtype)  in session_input_channel_req()  argument
2242 			success = session_shell_req(ssh, s);  in session_input_channel_req()
2244 			success = session_exec_req(ssh, s);  in session_input_channel_req()
2246 			success = session_pty_req(ssh, s);  in session_input_channel_req()
2248 			success = session_x11_req(ssh, s);  in session_input_channel_req()
2250 			success = session_auth_agent_req(ssh, s);  in session_input_channel_req()
2252 			success = session_subsystem_req(ssh, s);  in session_input_channel_req()
2254 			success = session_env_req(ssh, s);  in session_input_channel_req()
2258 		success = session_window_change_req(ssh, s);  in session_input_channel_req()
2260 		success = session_break_req(ssh, s);  in session_input_channel_req()
2262 		success = session_signal_req(ssh, s);  in session_input_channel_req()
2269 session_set_fds(struct ssh *ssh, Session *s,  in session_set_fds()  argument
2278 	channel_set_fds(ssh, s->chanid,  in session_set_fds()
2349 session_close_x11(struct ssh *ssh, int id)  in session_close_x11()  argument
2353 	if ((c = channel_by_id(ssh, id)) == NULL) {  in session_close_x11()
2358 		channel_cancel_cleanup(ssh, id);  in session_close_x11()
2360 			chan_mark_dead(ssh, c);  in session_close_x11()
2365 session_close_single_x11(struct ssh *ssh, int id, int force, void *arg)  in session_close_single_x11()  argument
2371 	channel_cancel_cleanup(ssh, id);  in session_close_single_x11()
2382 			session_close_x11(ssh, s->x11_chanids[i]);  in session_close_single_x11()
2397 session_exit_message(struct ssh *ssh, Session *s, int status)  in session_exit_message()  argument
2403 	if ((c = channel_lookup(ssh, s->chanid)) == NULL)  in session_exit_message()
2407 		channel_request_start(ssh, s->chanid, "exit-status", 0);  in session_exit_message()
2408 		if ((r = sshpkt_put_u32(ssh, WEXITSTATUS(status))) != 0 ||  in session_exit_message()
2409 		    (r = sshpkt_send(ssh)) != 0)  in session_exit_message()
2410 			sshpkt_fatal(ssh, r, "%s: exit reply", __func__);  in session_exit_message()
2413 		channel_request_start(ssh, s->chanid, "exit-signal", 0);  in session_exit_message()
2417 		if ((r = sshpkt_put_cstring(ssh, sig2name(WTERMSIG(status)))) != 0 ||  in session_exit_message()
2418 		    (r = sshpkt_put_u8(ssh, WCOREDUMP(status)? 1 : 0)) != 0 ||  in session_exit_message()
2419 		    (r = sshpkt_put_cstring(ssh, "")) != 0 ||  in session_exit_message()
2420 		    (r = sshpkt_put_cstring(ssh, "")) != 0 ||  in session_exit_message()
2421 		    (r = sshpkt_send(ssh)) != 0)  in session_exit_message()
2422 			sshpkt_fatal(ssh, r, "%s: exit reply", __func__);  in session_exit_message()
2427 		ssh_packet_disconnect(ssh, "wait returned status %04x.",  in session_exit_message()
2443 	channel_register_cleanup(ssh, c->self, session_close_by_channel, 1);  in session_exit_message()
2452 		chan_write_failed(ssh, c);  in session_exit_message()
2456 session_close(struct ssh *ssh, Session *s)  in session_close()  argument
2462 	    ssh_remote_ipaddr(ssh),  in session_close()
2463 	    ssh_remote_port(ssh),  in session_close()
2487 session_close_by_pid(struct ssh *ssh, pid_t pid, int status)  in session_close_by_pid()  argument
2495 		session_exit_message(ssh, s, status);  in session_close_by_pid()
2506 session_close_by_channel(struct ssh *ssh, int id, int force, void *arg)  in session_close_by_channel()  argument
2529 	channel_cancel_cleanup(ssh, s->chanid);  in session_close_by_channel()
2534 			session_close_x11(ssh, s->x11_chanids[i]);  in session_close_by_channel()
2540 	session_close(ssh, s);  in session_close_by_channel()
2544 session_destroy_all(struct ssh *ssh, void (*closefunc)(Session *))  in session_destroy_all()  argument
2553 				session_close(ssh, s);  in session_destroy_all()
2596 session_setup_x11fwd(struct ssh *ssh, Session *s)  in session_setup_x11fwd()  argument
2604 		ssh_packet_send_debug(ssh, "X11 forwarding disabled by key options.");  in session_setup_x11fwd()
2613 		ssh_packet_send_debug(ssh, "No xauth program; cannot forward X11.");  in session_setup_x11fwd()
2620 	if (x11_create_display_inet(ssh, options.x11_display_offset,  in session_setup_x11fwd()
2627 		channel_register_cleanup(ssh, s->x11_chanids[i],  in session_setup_x11fwd()
2654 			ssh_packet_send_debug(ssh, "Can't get IP address for X11 DISPLAY.");  in session_setup_x11fwd()
2672 do_authenticated2(struct ssh *ssh, Authctxt *authctxt)  in do_authenticated2()  argument
2674 	server_loop2(ssh, authctxt);  in do_authenticated2()
2678 do_cleanup(struct ssh *ssh, Authctxt *authctxt)  in do_cleanup()  argument
2734 		session_destroy_all(ssh, session_pty_cleanup2);  in do_cleanup()
2740 session_get_remote_name_or_ip(struct ssh *ssh, u_int utmp_size, int use_dns)  in session_get_remote_name_or_ip()  argument
2745 		remote = auth_get_canonical_hostname(ssh, use_dns);  in session_get_remote_name_or_ip()
2747 		remote = ssh_remote_ipaddr(ssh);  in session_get_remote_name_or_ip()