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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 16:04:21 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 16:04:21 +0000 |
commit | 8a754e0858d922e955e71b253c139e071ecec432 (patch) | |
tree | 527d16e74bfd1840c85efd675fdecad056c54107 /lib/ansible/utils/ssh_functions.py | |
parent | Initial commit. (diff) | |
download | ansible-core-upstream/2.14.3.tar.xz ansible-core-upstream/2.14.3.zip |
Adding upstream version 2.14.3.upstream/2.14.3upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | lib/ansible/utils/ssh_functions.py | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/lib/ansible/utils/ssh_functions.py b/lib/ansible/utils/ssh_functions.py new file mode 100644 index 0000000..a728889 --- /dev/null +++ b/lib/ansible/utils/ssh_functions.py @@ -0,0 +1,66 @@ +# (c) 2016, James Tanner +# (c) 2016, Toshio Kuratomi <tkuratomi@ansible.com> +# +# This file is part of Ansible +# +# Ansible is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# Ansible is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with Ansible. If not, see <http://www.gnu.org/licenses/>. + +# Make coding more python3-ish +from __future__ import (absolute_import, division, print_function) +__metaclass__ = type + +import subprocess + +from ansible import constants as C +from ansible.module_utils._text import to_bytes +from ansible.module_utils.compat.paramiko import paramiko + + +_HAS_CONTROLPERSIST = {} # type: dict[str, bool] + + +def check_for_controlpersist(ssh_executable): + try: + # If we've already checked this executable + return _HAS_CONTROLPERSIST[ssh_executable] + except KeyError: + pass + + b_ssh_exec = to_bytes(ssh_executable, errors='surrogate_or_strict') + has_cp = True + try: + cmd = subprocess.Popen([b_ssh_exec, '-o', 'ControlPersist'], stdout=subprocess.PIPE, stderr=subprocess.PIPE) + (out, err) = cmd.communicate() + if b"Bad configuration option" in err or b"Usage:" in err: + has_cp = False + except OSError: + has_cp = False + + _HAS_CONTROLPERSIST[ssh_executable] = has_cp + return has_cp + + +# TODO: move to 'smart' connection plugin that subclasses to ssh/paramiko as needed. +def set_default_transport(): + + # deal with 'smart' connection .. one time .. + if C.DEFAULT_TRANSPORT == 'smart': + # TODO: check if we can deprecate this as ssh w/o control persist should + # not be as common anymore. + + # see if SSH can support ControlPersist if not use paramiko + if not check_for_controlpersist('ssh') and paramiko is not None: + C.DEFAULT_TRANSPORT = "paramiko" + else: + C.DEFAULT_TRANSPORT = "ssh" |