search for: ssh_session2_open

I've been testing tunneling on Linux with openssh-SNAP-20060116.tar.gz and found a problem. When I use LocalCommand for doing ifconfig stuff, the command line was executed before a tunneling interface is opened. This causes errors on Linux and the interface is not automatically set up. This is not a problem on *BSD because you can do ifconfig for unopened tun/tap interfaces. But in Linux,

...kalg ssh-rsa blen 149 lastkey 400377a0 hint -1 debug2: input_userauth_pk_ok: fp 7a:44:be:6c:94:18:fb:0c:ff:e5:1a:9a:07:98:a5:27 debug3: sign_and_send_pubkey debug3: clear_auth_state: key_free 400377a0 debug1: ssh-userauth2 successful: method publickey debug1: channel 0: new [client-session] debug3: ssh_session2_open: channel_new: 0 debug1: send channel open 0 Memory fault(coredump) # ssh -V OpenSSH_3.4p1, SSH protocols 1.5/2.0, OpenSSL 0x0090607f HP-UX 11.0 (March 2002 patches) Thanks, Eric

Hello all, My scripts, which read stdout from ssh, weren't seeing EOF from the remote session.? It was being sent, but lost.? I tracked it down to the following code, in ssh.c, at ssh_session2_open: ??????? if (stdin_null_flag) { ??????????????? in = open(_PATH_DEVNULL, O_RDONLY); ??????? } else { ??????????????? in = dup(STDIN_FILENO); ??????? } ??????? out = dup(STDOUT_FILENO); ??????? err = dup(STDERR_FILENO); The remote session did close stdout.? The sshd from which it was spawne...

...rk, xorg-x11-auth rpm is installed, have checked sshd config for #X11Forwarding no X11Forwarding yes #X11DisplayOffset 10 Here is a verbose ssh logon, I can't see any difference to a working server: debug1: Authentication succeeded (password). debug1: channel 0: new [client-session] debug3: ssh_session2_open: channel_new: 0 debug2: channel 0: send open debug1: Entering interactive session. debug2: callback start debug2: x11_get_proto: /usr/bin/xauth list unix:10.0 2>/dev/null debug1: Requesting X11 forwarding with authentication spoofing. debug2: channel 0: request x11-req confirm 0 debug2: client_...

...acket_send2: adding 64 (len 56 padlen 8 extra_pad 64) debug2: we sent a password packet, wait for reply debug3: Wrote 144 bytes for a total of 1639 debug1: Authentication succeeded (password). debug2: fd 4 setting O_NONBLOCK debug3: fd 5 is O_NONBLOCK debug1: channel 0: new [client-session] debug3: ssh_session2_open: channel_new: 0 debug2: channel 0: send open debug1: Requesting no-more-sessions at openssh.com debug1: Entering interactive session. debug3: Wrote 128 bytes for a total of 1767 debug2: callback start debug2: client_session2_setup: id 0 debug1: Sending environment. debug3: Ignored env TERM debug3:...

...heir QoS has not led to a solution (with different hosts being a workaround but IMO not a well maintainable one), I've run through the sequence and options with the current versions: * QoS is still decided after expansion (expansion happens in main; QoS is set down from there in ssh_session2 / ssh_session2_open / ssh_session2_setup) * QoS, unless explicitly configured, is set to interactive based on the presence of tty_flag || a successful X forwarding. * tty_flag is set in main based on -t/-T, the presence of a command and isatty a few lines before the control path expansion. It should thus be relativel...

...key was not using either overloading. I used the rsa.meth way, instead of the engine. With this patch ssh-add works. I'm working on getting ssh to take a PIN, but when I put in a call to read_passphrase in the appropriate place, it muddies the waters for stdin, I think. I get errors in ssh_session2_open that it can't 'dup() in/out/err'. It seems as if stdin's been closed? Any fixes? Thanks, Kevin Stefanik -------------- next part -------------- A non-text attachment was scrubbed... Name: openssh-3.5p1-opensc_sc_sign.patch Type: text/x-diff Size: 518 bytes Desc: not available Ur...

...2 localhost od /bin/ls | true ignore SIGPIPE Perhaps a slightly more realistic example: rugolsky at mercury: ssh -vvv -x -n -2 localhost cat /dev/zero | dd count=1 ... debug1: fd 4 setting O_NONBLOCK debug1: fd 5 setting O_NONBLOCK debug1: channel 0: new [client-session] debug3: ssh_session2_open: channel_new: 0 debug1: send channel open 0 debug1: Entering interactive session. debug2: callback start debug1: ssh_session2_setup: id 0 debug1: Sending command: cat /dev/zero debug1: channel request 0: exec debug2: callback done debug1: channel 0: open confirm rwindow 0 rm...

...config: config /opt/ssh/etc/sshd_config len 331 ssh: debug2: input_userauth_info_req debug2: input_userauth_info_req: num_prompts 0 debug3: packet_send2: adding 48 (len 10 padlen 6 extra_pad 64) debug1: Authentication succeeded (keyboard-interactive). debug1: channel 0: new [client-session] debug3: ssh_session2_open: channel_new: 0 -- Michael

...s ssh requests tun device: debug1: Authentication succeeded (publickey). debug1: Requesting tun unit 2147483647 in mode 1 debug1: sys_tun_open: tunnel mode 1 fd 4 debug2: fd 4 setting O_NONBLOCK debug3: fd 4 is O_NONBLOCK debug1: channel 0: new [tun] debug1: channel 1: new [client-session] debug3: ssh_session2_open: channel_new: 1 debug2: channel 1: send open and after I exit from shell can not close it: debug2: channel 1: rcvd eof debug2: channel 1: output open -> drain debug2: channel 1: obuf empty debug2: channel 1: close_write debug2: channel 1: output drain -> closed debug1: client_input_channel_...

...I am succeeded to do the password less authonitication but unable to execute the command and get the command OUTPUT/ERROR message. Below is the ssh command trace. please let me know what is the problem: debug1: Authentication succeeded (publickey). debug1: channel 0: new [client-session] debug3: ssh_session2_open: channel_new: 0 debug2: channel 0: send open debug1: Entering interactive session. debug2: callback start debug2: client_session2_setup: id 0 debug1: Sending command: ping -help debug2: channel 0: request exec confirm 0 debug2: callback done debug2: channel 0: open confirm rwindow 0 rmax 32768 debu...

..."real" ssh on a linux box. But when it comes to interactive terminal both they, and sftp, fail. ssh -vvvv shardik (which is a *nix box) snip snip debug1: Authentication succeeded (password). Authenticated to shardik ([192.168.0.1]:22). debug1: channel 0: new [client-session] debug3: ssh_session2_open: channel_new: 0 debug2: channel 0: send open debug1: Entering interactive session. tcgetattr: Invalid argument debug2: callback start debug2: fd 3 setting TCP_NODELAY debug3: packet_set_tos: set IP_TOS 0x10 debug2: client_session2_setup: id 0 debug2: channel 0: request pty-req confirm 1 debug1: tty...

...gning using ssh-rsa-cert-v01 at openssh.com > debug3: send packet: type 50 > debug3: receive packet: type 52 > debug1: Authentication succeeded (publickey). > Authenticated to our.server.in.the.cloud ([our.ip.in.the.cloud]:4444). > debug1: channel 0: new [client-session] > debug3: ssh_session2_open: channel_new: 0 > debug2: channel 0: send open > debug3: send packet: type 90 > debug1: Requesting no-more-sessions at openssh.com > debug3: send packet: type 80 > debug1: Entering interactive session. > debug1: pledge: network > debug3: receive packet: type 80 > debug1: cli...

...-2.0-OpenSSH_5.1p1+sftpfilecontrol-v1.2-hpn13v5 ... debug1: Authentication succeeded (publickey). debug2: fd 5 setting O_NONBLOCK debug2: fd 6 setting O_NONBLOCK debug1: Final hpn_buffer_size = 2097152 debug1: HPN Disabled: 1, HPN Buffer Size: 2097152 debug1: channel 0: new [client-session] debug3: ssh_session2_open: channel_new: 0 debug2: channel 0: send open debug1: Requesting no-more-sessions at openssh.com debug1: Entering interactive session. debug2: callback start debug2: client_session2_setup: id 0 debug1: Sending subsystem: sftp debug2: channel 0: request subsystem confirm 1 debug2: fd 4 setting TCP_NO...

...01,7 +1203,9 @@ /* XXX should be pre-session */ ssh_init_forwarding(); - ssh_control_listener(); + if (!ssh_control_listener(0)) + fatal("control master socket %s already exists", + options.control_path); if (!no_shell_flag || (datafellows & SSH_BUG_DUMMYCHAN)) id = ssh_session2_open(); @@ -1319,7 +1323,13 @@ switch (options.control_master) { case SSHCTL_MASTER_AUTO: case SSHCTL_MASTER_AUTO_ASK: - debug("auto-mux: Trying existing master"); + /* see if we can create a control master socket + to avoid a race between two auto clients */ + if (mux_command ==...

...his is a failed connection -> debug3: packet_send2: adding 56 (len 61 padlen 11 extra_pad 64) debug2: we sent a password packet, wait for reply debug1: Authentication succeeded (password). debug2: fd 5 setting O_NONBLOCK debug3: fd 6 is O_NONBLOCK debug1: channel 0: new [client-session] debug3: ssh_session2_open: channel_new: 0 debug2: channel 0: send open debug1: Requesting no-more-sessions at openssh.com debug1: Entering interactive session. debug2: callback start debug2: client_session2_setup: id 0 debug2: channel 0: request pty-req confirm 1 debug3: tty_make_modes: ospeed 38400 debug3: tty_make_modes:...

On Wed, 25 Jan 2023 at 19:29, Darren Tucker <dtucker at dtucker.net> wrote: [...] > I have a part-done patch that logs the output from all ssh and sshd > instances to separate datestamped files. I'll see if I can tidy that > up for you to try You can grab it from here: https://github.com/daztucker/openssh-portable/commit/b54b39349e1a64cbbb9b56b0f8b91a35589fb528 It's not

...this? Here's an example of the output I am seeing (condensed, the real output is ~3000 lines): OpenSSH_5.2p1, OpenSSL 0.9.8l 5 Nov 2009 debug1: Authentication succeeded (publickey). debug2: fd 5 setting O_NONBLOCK debug2: fd 6 setting O_NONBLOCK debug1: channel 0: new [client-session] debug3: ssh_session2_open: channel_new: 0 debug2: channel 0: send open debug1: Requesting no-more-sessions at openssh.com debug1: Entering interactive session. debug1: Remote: Forced command: gitosis-serve osjokine debug1: Remote: Port forwarding disabled. debug1: Remote: X11 forwarding disabled. debug1: Remote: Agent forwa...

...P for this account. Thanks Simon The last ouput from the ssh -vvv command is below:- debug3: packet_send2: adding 48 (len 63 padlen 17 extra_pad 64) debug2: we sent a password packet, wait for reply debug1: Authentication succeeded (password). debug1: channel 0: new [client-session] debug3: ssh_session2_open: channel_new: 0 debug2: channel 0: send open debug1: Entering interactive session. debug2: callback start debug2: client_session2_setup: id 0 debug2: channel 0: request pty-req confirm 0 debug3: tty_make_modes: ospeed 38400 debug3: tty_make_modes: ispeed 38400 debug3: tty_make_modes: 1 3 debug3: tt...

..."session", SSH_CHANNEL_OPENING, in, out, err, window, packetmax, CHAN_EXTENDED_WRITE, "client-session", /*nonblock*/0); - + if (!tty_flag) { + c->dynamic_window = 1; + set_unlimited(&c->input,1); + set_unlimited(&c->output,1); + } debug3("ssh_session2_open: channel_new: %d", c->self); channel_send_open(c->self); Only in openssh-3.8.1p1-dynwindow: ssh_prng_cmds