From 9e7e4ab6617fef1d1681fc2d3e02554264ccc954 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 13:13:18 +0200 Subject: Adding upstream version 1:8.4p1. Signed-off-by: Daniel Baumann --- contrib/cygwin/ssh-user-config | 257 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 257 insertions(+) create mode 100644 contrib/cygwin/ssh-user-config (limited to 'contrib/cygwin/ssh-user-config') diff --git a/contrib/cygwin/ssh-user-config b/contrib/cygwin/ssh-user-config new file mode 100644 index 0000000..6fa4bb3 --- /dev/null +++ b/contrib/cygwin/ssh-user-config @@ -0,0 +1,257 @@ +#!/bin/bash +# +# ssh-user-config, Copyright 2000-2014 Red Hat Inc. +# +# This file is part of the Cygwin port of OpenSSH. +# +# Permission to use, copy, modify, and distribute this software for any +# purpose with or without fee is hereby granted, provided that the above +# copyright notice and this permission notice appear in all copies. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +# IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +# DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +# OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR +# THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +# ====================================================================== +# Initialization +# ====================================================================== +PROGNAME=$(basename -- $0) +_tdir=$(dirname -- $0) +PROGDIR=$(cd $_tdir && pwd) + +CSIH_SCRIPT=/usr/share/csih/cygwin-service-installation-helper.sh + +# Subdirectory where the new package is being installed +PREFIX=/usr + +# Directory where the config files are stored +SYSCONFDIR=/etc + +source ${CSIH_SCRIPT} + +auto_passphrase="no" +passphrase="" +pwdhome= +with_passphrase= + +# ====================================================================== +# Routine: create_identity +# optionally create identity of type argument in ~/.ssh +# optionally add result to ~/.ssh/authorized_keys +# ====================================================================== +create_identity() { + local file="$1" + local type="$2" + local name="$3" + if [ ! -f "${pwdhome}/.ssh/${file}" ] + then + if csih_request "Shall I create a ${name} identity file for you?" + then + csih_inform "Generating ${pwdhome}/.ssh/${file}" + if [ "${with_passphrase}" = "yes" ] + then + ssh-keygen -t "${type}" -N "${passphrase}" -f "${pwdhome}/.ssh/${file}" > /dev/null + else + ssh-keygen -t "${type}" -f "${pwdhome}/.ssh/${file}" > /dev/null + fi + if csih_request "Do you want to use this identity to login to this machine?" + then + csih_inform "Adding to ${pwdhome}/.ssh/authorized_keys" + cat "${pwdhome}/.ssh/${file}.pub" >> "${pwdhome}/.ssh/authorized_keys" + fi + fi + fi +} # === End of create_ssh1_identity() === # +readonly -f create_identity + +# ====================================================================== +# Routine: check_user_homedir +# Perform various checks on the user's home directory +# SETS GLOBAL VARIABLE: +# pwdhome +# ====================================================================== +check_user_homedir() { + pwdhome=$(getent passwd $UID | awk -F: '{ print $6; }') + if [ "X${pwdhome}" = "X" ] + then + csih_error_multi \ + "There is no home directory set for you in the account database." \ + 'Setting $HOME is not sufficient!' + fi + + if [ ! -d "${pwdhome}" ] + then + csih_error_multi \ + "${pwdhome} is set in the account database as your home directory" \ + 'but it is not a valid directory. Cannot create user identity files.' + fi + + # If home is the root dir, set home to empty string to avoid error messages + # in subsequent parts of that script. + if [ "X${pwdhome}" = "X/" ] + then + # But first raise a warning! + csih_warning "Your home directory in the account database is set to root (/). This is not recommended!" + if csih_request "Would you like to proceed anyway?" + then + pwdhome='' + else + csih_warning "Exiting. Configuration is not complete" + exit 1 + fi + fi + + if [ -d "${pwdhome}" -a -n "`chmod -c g-w,o-w "${pwdhome}"`" ] + then + echo + csih_warning 'group and other have been revoked write permission to your home' + csih_warning "directory ${pwdhome}." + csih_warning 'This is required by OpenSSH to allow public key authentication using' + csih_warning 'the key files stored in your .ssh subdirectory.' + csih_warning 'Revert this change ONLY if you know what you are doing!' + echo + fi +} # === End of check_user_homedir() === # +readonly -f check_user_homedir + +# ====================================================================== +# Routine: check_user_dot_ssh_dir +# Perform various checks on the ~/.ssh directory +# PREREQUISITE: +# pwdhome -- check_user_homedir() +# ====================================================================== +check_user_dot_ssh_dir() { + if [ -e "${pwdhome}/.ssh" -a ! -d "${pwdhome}/.ssh" ] + then + csih_error "${pwdhome}/.ssh is existent but not a directory. Cannot create user identity files." + fi + + if [ ! -e "${pwdhome}/.ssh" ] + then + mkdir "${pwdhome}/.ssh" + if [ ! -e "${pwdhome}/.ssh" ] + then + csih_error "Creating users ${pwdhome}/.ssh directory failed" + fi + fi +} # === End of check_user_dot_ssh_dir() === # +readonly -f check_user_dot_ssh_dir + +# ====================================================================== +# Routine: fix_authorized_keys_perms +# Corrects the permissions of ~/.ssh/authorized_keys +# PREREQUISITE: +# pwdhome -- check_user_homedir() +# ====================================================================== +fix_authorized_keys_perms() { + if [ -e "${pwdhome}/.ssh/authorized_keys" ] + then + setfacl -b "${pwdhome}/.ssh/authorized_keys" 2>/dev/null || echo -n + if ! chmod u-x,g-wx,o-wx "${pwdhome}/.ssh/authorized_keys" + then + csih_warning "Setting correct permissions to ${pwdhome}/.ssh/authorized_keys" + csih_warning "failed. Please care for the correct permissions. The minimum requirement" + csih_warning "is, the owner needs read permissions." + echo + fi + fi +} # === End of fix_authorized_keys_perms() === # +readonly -f fix_authorized_keys_perms + + +# ====================================================================== +# Main Entry Point +# ====================================================================== + +# Check how the script has been started. If +# (1) it has been started by giving the full path and +# that path is /etc/postinstall, OR +# (2) Otherwise, if the environment variable +# SSH_USER_CONFIG_AUTO_ANSWER_NO is set +# then set auto_answer to "no". This allows automatic +# creation of the config files in /etc w/o overwriting +# them if they already exist. In both cases, color +# escape sequences are suppressed, so as to prevent +# cluttering setup's logfiles. +if [ "$PROGDIR" = "/etc/postinstall" ] +then + csih_auto_answer="no" + csih_disable_color +fi +if [ -n "${SSH_USER_CONFIG_AUTO_ANSWER_NO}" ] +then + csih_auto_answer="no" + csih_disable_color +fi + +# ====================================================================== +# Parse options +# ====================================================================== +while : +do + case $# in + 0) + break + ;; + esac + + option=$1 + shift + + case "$option" in + -d | --debug ) + set -x + csih_trace_on + ;; + + -y | --yes ) + csih_auto_answer=yes + ;; + + -n | --no ) + csih_auto_answer=no + ;; + + -p | --passphrase ) + with_passphrase="yes" + passphrase=$1 + shift + ;; + + *) + echo "usage: ${PROGNAME} [OPTION]..." + echo + echo "This script creates an OpenSSH user configuration." + echo + echo "Options:" + echo " --debug -d Enable shell's debug output." + echo " --yes -y Answer all questions with \"yes\" automatically." + echo " --no -n Answer all questions with \"no\" automatically." + echo " --passphrase -p word Use \"word\" as passphrase automatically." + echo + exit 1 + ;; + + esac +done + +# ====================================================================== +# Action! +# ====================================================================== + +check_user_homedir +check_user_dot_ssh_dir +create_identity id_rsa rsa "SSH2 RSA" +create_identity id_dsa dsa "SSH2 DSA" +create_identity id_ecdsa ecdsa "SSH2 ECDSA" +create_identity identity rsa1 "(deprecated) SSH1 RSA" +fix_authorized_keys_perms + +echo +csih_inform "Configuration finished. Have fun!" + + -- cgit v1.2.3