From 2d34205dab08ede9b0676efa57647fc49e6decbe Mon Sep 17 00:00:00 2001 From: "djm@openbsd.org" Date: Wed, 26 Jul 2023 23:06:00 +0000 Subject: upstream: make ssh -f (fork after authentication) work properly in multiplexed cases (inc. ControlPersist). bz3589 bz3589 Based on patches by Peter Chubb; ok dtucker@ OpenBSD-Commit-ID: a7a2976a54b93e6767dc846b85647e6ec26969ac --- ssh.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) (limited to 'ssh.c') diff --git a/ssh.c b/ssh.c index c8fcfb2b9..caf3c692c 100644 --- a/ssh.c +++ b/ssh.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ssh.c,v 1.592 2023/07/17 05:41:53 jmc Exp $ */ +/* $OpenBSD: ssh.c,v 1.593 2023/07/26 23:06:00 djm Exp $ */ /* * Author: Tatu Ylonen * Copyright (c) 1995 Tatu Ylonen , Espoo, Finland @@ -130,10 +130,11 @@ int tty_flag = 0; * Flag indicating that the current process should be backgrounded and * a new mux-client launched in the foreground for ControlPersist. */ -int need_controlpersist_detach = 0; +static int need_controlpersist_detach = 0; /* Copies of flags for ControlPersist foreground mux-client */ -int ostdin_null_flag, osession_type, otty_flag, orequest_tty; +static int ostdin_null_flag, osession_type, otty_flag, orequest_tty; +static int ofork_after_authentication; /* * General data structure for command line options and options configurable @@ -1757,11 +1758,15 @@ control_persist_detach(void) /* Child: master process continues mainloop */ break; default: - /* Parent: set up mux client to connect to backgrounded master */ + /* + * Parent: set up mux client to connect to backgrounded + * master. + */ debug2_f("background process is %ld", (long)pid); options.stdin_null = ostdin_null_flag; options.request_tty = orequest_tty; tty_flag = otty_flag; + options.fork_after_authentication = ofork_after_authentication; options.session_type = osession_type; close(muxserver_sock); muxserver_sock = -1; @@ -2173,11 +2178,11 @@ ssh_session2(struct ssh *ssh, const struct ssh_conn_info *cinfo) osession_type = options.session_type; orequest_tty = options.request_tty; otty_flag = tty_flag; + ofork_after_authentication = options.fork_after_authentication; options.stdin_null = 1; options.session_type = SESSION_TYPE_NONE; tty_flag = 0; - if (!options.fork_after_authentication && - (osession_type != SESSION_TYPE_NONE || + if ((osession_type != SESSION_TYPE_NONE || options.stdio_forward_host != NULL)) need_controlpersist_detach = 1; options.fork_after_authentication = 1; -- cgit v1.2.3