V8.00.000.2025.06.17

Signed-off-by: Marc S. Weidner <msw@coresecret.dev>

func/4200_setup_accounts.sh

@@ -12,105 +12,133 @@
 
 guard_sourcing
 
-###########################################################################################
-# Updating user accounts
-###########################################################################################
+#######################################
+# Updating user accounts.
+# Globals:
+#   TARGET
+#   VAR_USER_MAX
+#   user_root_authentication_access_ssh
+#   user_root_password
+#   user_root_shell
+#   user_root_sshpubkey
+# Arguments:
+#   None
+# Returns:
+#   0: on success
+#######################################
 setup_accounts() {
 
-  declare -a ary_user_accounts=()
-  ary_user_accounts+=("")
+  #######################################
+  # Declare Variables
+  #######################################
+  declare -i i
+  declare tmp_username="" tmp_fullname="" tmp_uid="" tmp_gid="" tmp_shell="" tmp_password="" tmp_sshpubkey="" tmp_sudo="" \
+    tmp_restricted=""
+  declare var_username="" var_fullname="" var_uid="" var_gid="" var_shell="" var_password="" var_sshpubkey="" var_sudo="" \
+    var_restricted="" var_chpasswd="" var_sshdir=""
 
-  if [[ ${accounts_root_login,,} == "true" ]]; then
-
-    do_in_target "${TARGET}" /bin/bash -c "echo 'root:${accounts_root_password_crypted}' | chpasswd -e"
-    do_log "info" "false" "Account 'root' password inserted."
-
-    if [[ ! -d ${TARGET}/root/.ssh ]]; then
-
-      mkdir "${TARGET}"/root/.ssh
-      chown root:root "${TARGET}"/root/.ssh
-      chmod 0700 "${TARGET}"/root/.ssh
-
-    else
-
-      chown root:root "${TARGET}"/root/.ssh
-      chmod 0700 "${TARGET}"/root/.ssh
-
-    fi
-
-    if [[ ! -f ${TARGET}/root/.ssh/authorized_keys ]]; then
-
-      touch "${TARGET}"/root/.ssh/authorized_keys
-      chown root:root "${TARGET}"/root/.ssh/authorized_keys
-      chmod 0600 "${TARGET}"/root/.ssh/authorized_keys
-      printf "%s\n" "$accounts_root_ssh_pub_key" >> "${TARGET}"/root/.ssh/authorized_keys
-      do_log "info" "false" "Account 'root' SSH public key '/root/.ssh/authorized_keys' inserted."
-
-    else
-
-      chown root:root "${TARGET}"/root/.ssh/authorized_keys
-      chmod 0600 "${TARGET}"/root/.ssh/authorized_keys
-      printf "%s\n" "$accounts_root_ssh_pub_key" >> "${TARGET}"/root/.ssh/authorized_keys
-      do_log "info" "false" "Account 'root' SSH public key '/root/.ssh/authorized_keys' inserted."
-
-    fi
-
-
-  elif [[ ${accounts_root_login,,} == "false" ]]; then
-
-    do_log "info" "false" "Skipped creation of 'root' password."
+  ### Preparing the root account
+  chown root:root "${TARGET}/etc/passwd" "${TARGET}/etc/shadow" "${TARGET}/etc/group" "${TARGET}/etc/gshadow"
+  chmod 644 "${TARGET}/etc/passwd" "${TARGET}/etc/group"
+  chmod 600 "${TARGET}/etc/shadow" "${TARGET}/etc/gshadow"
 
+  if [[ -x "${TARGET}${user_root_shell}" ]]; then
+    do_in_target "${TARGET}" chsh -s "${user_root_shell}" root
   else
-
-    do_log "error" "true" "Invalid value for 'accounts_root_login': '${accounts_root_login}'. Expected value: 'true' or 'false'."
-
+    do_log "warn" "true" "Shell: '${user_root_shell}' not found for: 'root'. Using '/bin/bash' instead."
   fi
 
-  if [[ ${accounts_user_login,,} == "true" ]]; then
+  var_chpasswd="root:${user_root_password}"
+  do_in_target_script "${TARGET}" "echo \"${var_chpasswd}\" | chpasswd -e"
+  var_chpasswd=""
 
-    echo "${accounts_user_name}:${accounts_user_password_crypted}" | chpasswd -e
-    do_log "info" "false" "Account '${accounts_user_name}' password inserted."
+  install -d -m 0700 -o root -g root "${TARGET}/root/.ssh"
+  install -m 0600 -o root -g root /dev/null "${TARGET}/root/.ssh/authorized_keys"
 
-    if [[ ! -d ${TARGET}/home/${accounts_user_name}/.ssh ]]; then
-
-      mkdir "${TARGET}"/home/"${accounts_user_name}"/.ssh
-      chown "${accounts_user_name}":"${accounts_user_name}" "${TARGET}"/home/"${accounts_user_name}"/.ssh
-      chmod 0700 "${TARGET}"/home/"${accounts_user_name}"/.ssh
+  grep -qxF "${user_root_sshpubkey}" "${TARGET}/root/.ssh/authorized_keys" || \
+    printf "%s\n" "${user_root_sshpubkey}" >> "${TARGET}/root/.ssh/authorized_keys"
 
+  if [[ "${user_root_authentication_access_ssh}" == "false" ]]; then
+    if grep -q '^\s*PermitRootLogin' "${TARGET}/etc/ssh/sshd_config"; then
+      sed -i 's/^\s*PermitRootLogin\s\+.*/PermitRootLogin no/' "${TARGET}/etc/ssh/sshd_config"
     else
-
-      chown "${accounts_user_name}":"${accounts_user_name}" "${TARGET}"/home/"${accounts_user_name}"/.ssh
-      chmod 0700 "${TARGET}"/home/"${accounts_user_name}"/.ssh
-
+      echo 'PermitRootLogin no' >> "${TARGET}/etc/ssh/sshd_config"
     fi
-
-    if [[ ! -f ${TARGET}/home/${accounts_user_name}/.ssh/authorized_keys ]]; then
-
-      touch "${TARGET}"/home/"${accounts_user_name}"/.ssh/authorized_keys
-      chown "${accounts_user_name}":"${accounts_user_name}" "${TARGET}"/home/"${accounts_user_name}"/.ssh/authorized_keys
-      chmod 0600 "${TARGET}"/home/"${accounts_user_name}"/.ssh/authorized_keys
-      printf "%s\n" "$accounts_user_ssh_pub_key" >> "${TARGET}"/home/"${accounts_user_name}"/.ssh/authorized_keys
-      do_log "info" "false" "Account '${accounts_user_name}' SSH public key '${TARGET}/home/${accounts_user_name}/.ssh/authorized_keys' inserted."
-
-    else
-
-      chown "${accounts_user_name}":"${accounts_user_name}" "${TARGET}"/home/"${accounts_user_name}"/.ssh/authorized_keys
-      chmod 0600 "${TARGET}"/home/"${accounts_user_name}"/.ssh/authorized_keys
-      printf "%s\n" "$accounts_user_ssh_pub_key" >> "${TARGET}"/home/"${accounts_user_name}"/.ssh/authorized_keys
-      do_log "info" "false" "Account '${accounts_user_name}' SSH public key '${TARGET}/home/${accounts_user_name}/.ssh/authorized_keys' inserted."
-
-    fi
-
-  elif [[ ${accounts_user_login,,} == "false" ]]; then
-
-    do_log "info" "false" "Skipped creation of account '${accounts_user_name}'."
-
-  else
-
-    do_log "error" "true" "Invalid value for 'accounts_user_login': '${accounts_user_login}'. Expected 'true' or 'false'."
-
   fi
 
+  ### Install all user accounts.
+  for ((i = 0; i <= VAR_USER_MAX; i++)); do
+    tmp_username="user_user${i}_name"
+    tmp_fullname="user_user${i}_fullname"
+    tmp_uid="user_user${i}_uid"
+    tmp_gid="user_user${i}_gid"
+    tmp_shell="user_user${i}_shell"
+    tmp_password="user_user${i}_password"
+    tmp_sshpubkey="user_user${i}_sshpubkey"
+    tmp_sudo="user_user${i}_privileges_sudo"
+    tmp_restricted="user_user${i}_privileges_restricted"
+
+    var_username="${!tmp_username}"
+    var_fullname="${!tmp_fullname}"
+    var_uid="${!tmp_uid}"
+    var_gid="${!tmp_gid}"
+    var_shell="${!tmp_shell}"
+    var_password="${!tmp_password}"
+    var_sshpubkey="${!tmp_sshpubkey}"
+    var_sudo="${!tmp_sudo}"
+    var_restricted="${!tmp_restricted}"
+
+    do_in_target "${TARGET}" getent group "${var_username}" >/dev/null || \
+      do_in_target "${TARGET}" groupadd --gid "${var_gid}" "${var_username}"
+
+    if [[ "${var_restricted}" == "false" ]]; then
+
+      do_in_target "${TARGET}" useradd \
+        --comment "${var_fullname}" \
+        --create-home \
+        --expiredate 2102-12-31 \
+        --gid "${var_gid}" \
+        --home-dir /home/"${var_username}" \
+        --inactive 0 \
+        --shell "${var_shell}" \
+        --uid "${var_uid}" \
+        "${var_username}"
+
+    else
+
+      do_in_target "${TARGET}" useradd \
+        --comment "${var_fullname}" \
+        --expiredate 2102-12-31 \
+        --gid "${var_gid}" \
+        --home-dir /home/"${var_username}" \
+        --inactive 0 \
+        --no-create-home \
+        --shell "${var_shell}" \
+        --uid "${var_uid}" \
+        "${var_username}"
+
+    fi
+
+    var_chpasswd="${var_username}:${var_password}"
+    do_in_target_script "${TARGET}" "echo \"${var_chpasswd}\" | chpasswd -e"
+    var_chpasswd=""
+
+    if [[ "${var_sudo}" == "true" ]]; then
+      do_in_target "${TARGET}" usermod -aG sudo "${var_username}"
+    fi
+
+    if [[ -n "${var_sshpubkey}" ]]; then
+      var_sshdir="${TARGET}/home/${var_username}/.ssh"
+      install -d -m 0700 -o "${var_username}" -g "${var_username}" "${var_sshdir}"
+      install -m 0600 -o "${var_username}" -g "${var_username}" /dev/null "${var_sshdir}/authorized_keys"
+      grep -qxF "${var_sshpubkey}" "${var_sshdir}/authorized_keys" || \
+       printf "%s\n" "${var_sshpubkey}" >> "${var_sshdir}/authorized_keys"
+    fi
+
+    do_log "info" "true" "Created user: [${var_username}] UID: [${var_uid}], GID: [${var_gid}]"
+
+  done
+
   return 0
 }
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh