Browse Source
Add deploy/zyxel_gs1900.sh
Add deploy/zyxel_gs1900.sh
Add support for deploying to the Zyxel GS1900 line of switches as long as those switches are running at least firmware V2.80. Tested on a Zyxel GS1900-8 and GS1900-24E Resolves #5042pull/5043/head
Joe Bauser
9 months ago
2 changed files with 457 additions and 15 deletions
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48acme.sh
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424deploy/zyxel_gs1900.sh
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#!/usr/bin/env sh |
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|
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# Deploy certificates to Zyxel GS1900 series switches |
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# |
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# This script uses the https web administration interface in order |
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# to upload updated certificates to Zyxel GS1900 series switches. |
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# Only a few models have been tested but untested switches from the |
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# same model line may work as well. If you test and confirm a switch |
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# as working please submit a pull request updating this compatibility |
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# list! |
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# |
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# Known Issues: |
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# 1. This is a consumer grade switch and is a bit underpowered |
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# the longer the RSA key size the slower your switch web UI |
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# will be. RSA 2048 will work, RSA 4096 will work but you may |
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# experience performance problems. |
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# 2. You must use RSA certificates. The switch will reject EC-256 |
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# and EC-384 certificates in firmware 2.80 |
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# See: https://community.zyxel.com/en/discussion/21506/bug-cannot-import-ssl-cert-on-gs1900-8-and-gs1900-24e-firmware-v2-80/ |
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# |
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# Current GS1900 Switch Compatibility: |
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# GS1900-8 - Working as of firmware V2.80 |
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# GS1900-8HP - Untested |
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# GS1900-10HP - Untested |
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# GS1900-16 - Untested |
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# GS1900-24 - Untested |
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# GS1900-24E - Working as of firmware V2.80 |
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# GS1900-24EP - Untested |
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# GS1900-24HP - Untested |
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# GS1900-48 - Untested |
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# GS1900-48HP - Untested |
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# |
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# Prerequisite Setup Steps: |
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# 1. Install at least firmware V2.80 on your switch |
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# 2. Enable HTTPS web management on your switch |
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# |
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# Usage: |
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# 1. Ensure the switch has firmware V2.80 or later. |
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# 2. Ensure the switch has HTTPS management enabled. |
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# 3. Set the appropriate environment variables for your environment. |
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# |
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# DEPLOY_ZYXEL_SWITCH - The switch hostname. (Default: _cdomain) |
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# DEPLOY_ZYXEL_SWITCH_USER - The webadmin user. (Default: admin) |
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# DEPLOY_ZYXEL_SWITCH_PASSWORD - The webadmin password for the switch. |
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# DEPLOY_ZYXEL_SWITCH_REBOOT - If "1" reboot after update. (Default: "0") |
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# |
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# 4. Run the deployment plugin: |
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# acme.sh --deploy --deploy-hook zyxel_gs1900 -d example.com |
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# |
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# returns 0 means success, otherwise error. |
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|
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#domain keyfile certfile cafile fullchain |
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zyxel_gs1900_deploy() { |
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_zyxel_gs1900_minimum_firmware_version="v2.80" |
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|
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_cdomain="$1" |
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_ckey="$2" |
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_ccert="$3" |
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_cca="$4" |
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_cfullchain="$5" |
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|
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_debug _cdomain "$_cdomain" |
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_debug2 _ckey "$_ckey" |
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_debug _ccert "$_ccert" |
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_debug _cca "$_cca" |
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_debug _cfullchain "$_cfullchain" |
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|
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_getdeployconf DEPLOY_ZYXEL_SWITCH |
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if [ -z "$DEPLOY_ZYXEL_SWITCH" ]; then |
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_zyxel_switch_host="$_cdomain" |
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else |
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_zyxel_switch_host="$DEPLOY_ZYXEL_SWITCH" |
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_savedeployconf DEPLOY_ZYXEL_SWITCH "$DEPLOY_ZYXEL_SWITCH" |
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fi |
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_debug2 DEPLOY_ZYXEL_SWITCH "$_zyxel_switch_host" |
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|
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_getdeployconf DEPLOY_ZYXEL_SWITCH_USER |
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if [ -z "$DEPLOY_ZYXEL_SWITCH_USER" ]; then |
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_zyxel_switch_user="admin" |
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else |
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_zyxel_switch_user="$DEPLOY_ZYXEL_SWITCH_USER" |
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_savedeployconf DEPLOY_ZYXEL_SWITCH_USER "$DEPLOY_ZYXEL_SWITCH_USER" |
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fi |
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_debug2 DEPLOY_ZYXEL_SWITCH_USER "$_zyxel_switch_user" |
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|
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_getdeployconf DEPLOY_ZYXEL_SWITCH_PASSWORD |
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if [ -z "$DEPLOY_ZYXEL_SWITCH_PASSWORD" ]; then |
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_zyxel_switch_password="1234" |
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else |
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_zyxel_switch_password="$DEPLOY_ZYXEL_SWITCH_PASSWORD" |
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_savedeployconf DEPLOY_ZYXEL_SWITCH_PASSWORD "$DEPLOY_ZYXEL_SWITCH_PASSWORD" |
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fi |
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_secure_debug2 DEPLOY_ZYXEL_SWITCH_PASSWORD "$_zyxel_switch_password" |
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|
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_getdeployconf DEPLOY_ZYXEL_SWITCH_REBOOT |
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if [ -z "$DEPLOY_ZYXEL_SWITCH_REBOOT" ]; then |
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_zyxel_switch_reboot="0" |
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else |
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_zyxel_switch_reboot="$DEPLOY_ZYXEL_SWITCH_REBOOT" |
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_savedeployconf DEPLOY_ZYXEL_SWITCH_REBOOT "$DEPLOY_ZYXEL_SWITCH_REBOOT" |
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fi |
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_debug2 DEPLOY_ZYXEL_SWITCH_REBOOT "$_zyxel_switch_reboot" |
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_zyxel_switch_base_uri="https://${_zyxel_switch_host}" |
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_info "Beginning to deploy to a Zyxel GS1900 series switch at ${_zyxel_switch_base_uri}." |
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_zyxel_gs1900_deployment_precheck || return $? |
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_info "Logging into the switch web interface." |
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_zyxel_gs1900_login || return $? |
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|
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_info "Validating the switch is compatible with this deployment process." |
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_zyxel_gs1900_validate_device_compatibility || return $? |
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_info "Uploading the certificate." |
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_zyxel_gs1900_upload_certificate || return $? |
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if [ "$_zyxel_switch_reboot" = "1" ]; then |
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_info "Rebooting the switch." |
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_zyxel_gs1900_trigger_reboot || return $? |
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fi |
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return 0 |
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} |
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_zyxel_gs1900_deployment_precheck() { |
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# Initialize the keylength if it isn't already |
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if [ -z "$Le_Keylength" ]; then |
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Le_Keylength="" |
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fi |
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if _isEccKey "$Le_Keylength"; then |
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_info "Warning: Zyxel GS1900 switches are not currently known to work with ECC keys!" |
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_info "You can continue, but your switch may reject your key." |
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elif [ -n "$Le_Keylength" ] && [ "$Le_Keylength" -gt "2048" ]; then |
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_info "Warning: Your RSA key length is greater than 2048!" |
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_info "You can continue, but you may experience performance issues in the web administration interface." |
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fi |
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# Check the server for some common failure modes prior to authentication and certificate upload in order to avoid |
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# sending a certificate when we may not want to. |
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_post "username=test&password=test&login=true;" "${_zyxel_switch_base_uri}/cgi-bin/dispatcher.cgi" '' "POST" "application/x-www-form-urlencoded" >/dev/null 2>&1 |
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test_login_page_exitcode="$?" |
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if [ "$test_login_page_exitcode" -ne "0" ]; then |
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if [ "${ACME_USE_WGET:-0}" = "0" ] && [ "$test_login_page_exitcode" = "56" ]; then |
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_info "Warning: curl is returning exit code 56. Please re-run with --debug for more information." |
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_debug "If the above curl trace contains the error 'SSL routines::unexpected eof while reading, errno 0'" |
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_debug "please ensure you are running the latest versions of curl and openssl. For more information" |
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_debug "see: https://github.com/openssl/openssl/issues/18866#issuecomment-1194219601" |
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elif { [ "${ACME_USE_WGET:-0}" = "0" ] && [ "$test_login_page_exitcode" = "60" ]; } || { [ "${ACME_USE_WGET:-0}" = "1" ] && [ "$test_login_page_exitcode" = "5" ]; }; then |
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_err "The SSL certificate at $_zyxel_switch_base_uri could not be validated." |
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_err "Please double check your hostname, port, and that you are actually connecting to your switch." |
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_err "If the problem persists then please ensure that the certificate is not self-signed, has not" |
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_err "expired, and matches the switch hostname. If you expect validation to fail then you can disable" |
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_err "certificate validation by running with --insecure." |
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return 1 |
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else |
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_err "Failed to submit the initial login attempt to $_zyxel_switch_base_uri." |
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return 1 |
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fi |
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fi |
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} |
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_zyxel_gs1900_login() { |
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# Login to the switch and set the appropriate auth cookie in _H1 |
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username_encoded=$(printf "%s" "$_zyxel_switch_user" | _url_encode) |
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password_encoded=$(_zyxel_gs1900_password_obfuscate "$_zyxel_switch_password" | _url_encode) |
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login_response=$(_post "username=${username_encoded}&password=${password_encoded}&login=true;" "${_zyxel_switch_base_uri}/cgi-bin/dispatcher.cgi" '' "POST" "application/x-www-form-urlencoded" | tr -d '\n') |
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auth_response=$(_post "authId=${login_response}&login_chk=true" "${_zyxel_switch_base_uri}/cgi-bin/dispatcher.cgi" '' "POST" "application/x-www-form-urlencoded" | tr -d '\n') |
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if [ "$auth_response" != "OK" ]; then |
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_err "Login failed due to invalid credentials." |
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_err "Please double check the configured username and password and try again." |
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return 1 |
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fi |
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sessionid=$(grep -i '^set-cookie:' "$HTTP_HEADER" | _egrep_o 'HTTPS_XSSID=[^;]*;' | tr -d ';') |
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_secure_debug2 "sessionid" "$sessionid" |
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export _H1="Cookie: $sessionid" |
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_secure_debug2 "_H1" "$_H1" |
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return 0 |
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} |
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_zyxel_gs1900_validate_device_compatibility() { |
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# Check the switches model and firmware version and throw errors |
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# if this script isn't compatible. |
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device_info_html=$(_get "${_zyxel_switch_base_uri}/cgi-bin/dispatcher.cgi?cmd=12" | tr -d '\n') |
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model_name=$(_zyxel_gs1900_get_model "$device_info_html") |
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_debug2 "model_name" "$model_name" |
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if [ -z "$model_name" ]; then |
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_err "Could not find the switch model name." |
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_err "Please re-run with --debug and report a bug." |
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return $? |
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fi |
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if ! expr "$model_name" : "GS1900-" >/dev/null; then |
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_err "Switch is an unsupported model: $model_name" |
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return 1 |
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fi |
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firmware_version=$(_zyxel_gs1900_get_firmware_version "$device_info_html") |
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_debug2 "firmware_version" "$firmware_version" |
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if [ -z "$firmware_version" ]; then |
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_err "Could not find the switch firmware version." |
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_err "Please re-run with --debug and report a bug." |
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return $? |
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fi |
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_debug2 "_zyxel_gs1900_minimum_firmware_version" "$_zyxel_gs1900_minimum_firmware_version" |
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minimum_major_version=$(_zyxel_gs1900_parse_major_version "$_zyxel_gs1900_minimum_firmware_version") |
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_debug2 "minimum_major_version" "$minimum_major_version" |
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minimum_minor_version=$(_zyxel_gs1900_parse_minor_version "$_zyxel_gs1900_minimum_firmware_version") |
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_debug2 "minimum_minor_version" "$minimum_minor_version" |
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_debug2 "firmware_version" "$firmware_version" |
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firmware_major_version=$(_zyxel_gs1900_parse_major_version "$firmware_version") |
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_debug2 "firmware_major_version" "$firmware_major_version" |
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firmware_minor_version=$(_zyxel_gs1900_parse_minor_version "$firmware_version") |
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_debug2 "firmware_minor_version" "$firmware_minor_version" |
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_ret=0 |
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if [ "$firmware_major_version" -lt "$minimum_major_version" ]; then |
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_ret=1 |
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elif [ "$firmware_major_version" -eq "$minimum_major_version" ] && [ "$firmware_minor_version" -lt "$minimum_minor_version" ]; then |
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_ret=1 |
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fi |
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if [ "$_ret" != "0" ]; then |
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_err "Unsupported firmware version $firmware_version. Please upgrade to at least version $_zyxel_gs1900_minimum_firmware_version." |
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fi |
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return $? |
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} |
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_zyxel_gs1900_upload_certificate() { |
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# Generate a PKCS12 certificate with a temporary password since the web interface |
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# requires a password be present. Then upload that certificate. |
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temp_cert_password=$(head /dev/urandom | tr -dc 'A-Za-z0-9' | head -c 64) |
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_secure_debug2 "temp_cert_password" "$temp_cert_password" |
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temp_pkcs12="$(_mktemp)" |
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_debug2 "temp_pkcs12" "$temp_pkcs12" |
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_toPkcs "$temp_pkcs12" "$_ckey" "$_ccert" "$_cca" "$temp_cert_password" |
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if [ "$?" != "0" ]; then |
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_err "Failed to generate a pkcs12 certificate." |
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_err "Please re-run with --debug and report a bug." |
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# ensure the temporary certificate file is cleaned up |
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[ -f "${temp_pkcs12}" ] && rm -f "${temp_pkcs12}" |
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return $? |
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fi |
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upload_page_html=$(_get "${_zyxel_switch_base_uri}/cgi-bin/dispatcher.cgi?cmd=5914" | tr -d '\n') |
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# Get the two validity dates by looking for their date format in the page (i.e. Mar 5 05:48:48 2024 GMT) |
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existing_validity=$(_zyxel_html_extract_dates "$upload_page_html") |
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_debug2 "existing_validity" "$existing_validity" |
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form_xss_value=$(printf "%s" "$upload_page_html" | _egrep_o 'name="XSSID"\s*value="[^"]+"' | sed 's/^.*="\([^"]\{1,\}\)"$/\1/g') |
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_secure_debug2 "form_xss_value" "$form_xss_value" |
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# If a certificate exists on the switch already there will be two XSS keys - we want the first one |
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form_xss_value=$(printf "%s" "$form_xss_value" | head -n 1) |
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_secure_debug2 "form_xss_value" "$form_xss_value" |
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_info "Generating the certificate upload request" |
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upload_post_request="$(_mktemp)" |
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upload_post_boundary="---------------------------$(date +%Y%m%d%H%M%S)" |
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{ |
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printf -- "--%s\r\n" "${upload_post_boundary}" |
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printf "Content-Disposition: form-data; name=\"XSSID\"\r\n\r\n%s\r\n" "${form_xss_value}" |
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printf -- "--%s\r\n" "${upload_post_boundary}" |
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printf "Content-Disposition: form-data; name=\"http_file\"; filename=\"temp_pkcs12.pfx\"\r\n" |
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printf "Content-Type: application/pkcs12\r\n\r\n" |
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cat "${temp_pkcs12}" |
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printf "\r\n" |
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printf -- "--%s\r\n" "${upload_post_boundary}" |
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printf "Content-Disposition: form-data; name=\"pwd\"\r\n\r\n%s\r\n" "${temp_cert_password}" |
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printf -- "--%s\r\n" "${upload_post_boundary}" |
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printf "Content-Disposition: form-data; name=\"cmd\"\r\n\r\n%s\r\n" "31" |
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printf -- "--%s\r\n" "${upload_post_boundary}" |
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printf "Content-Disposition: form-data; name=\"sysSubmit\"\r\n\r\n%s\r\n" "Import" |
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printf -- "--%s--\r\n" "${upload_post_boundary}" |
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} >"${upload_post_request}" |
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_info "Upload certificate to the switch" |
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# Unfortunately we cannot rely upon the switch response across switch models |
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# to return a consistent body return - so we cannot inspect the result of this |
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# upload to determine success. We will need to re-query the certificates page |
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# and compare the validity dates to try and identify if they have changed. |
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_post "${upload_post_request}" "${_zyxel_switch_base_uri}/cgi-bin/httpuploadcert.cgi" '' "POST" "multipart/form-data; boundary=${upload_post_boundary}" '1' >/dev/null 2>&1 |
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rm "${upload_post_request}" |
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# Pause for a few seconds to give the switch a chance to process the certificate |
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# For some reason I've found this to be necessary on my GS1900-24E |
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_debug2 "Waiting 4 seconds for the switch to process the newly uploaded certificate." |
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sleep "4" |
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_debug2 "Checking to see if the certificate updated properly" |
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upload_page_html=$(_get "${_zyxel_switch_base_uri}/cgi-bin/dispatcher.cgi?cmd=5914" | tr -d '\n') |
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new_validity=$(_zyxel_html_extract_dates "$upload_page_html") |
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_debug2 "new_validity" "$existing_validity" |
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_ret=0 |
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if [ "$existing_validity" != "$new_validity" ]; then |
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_debug2 "The certificate validity has changed. The upload must have succeeded." |
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else |
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_ret=1 |
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_err "The certificate upload does not appear to have worked." |
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_err "Either the certificate provided has not changed, or the switch is returning an unexpected error." |
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_err "Please re-run with --debug 2 and review for unexpected errors. If none can be found please submit a bug." |
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fi |
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|
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# ensure the temporary files are cleaned up |
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[ -f "${temp_pkcs12}" ] && rm -f "${temp_pkcs12}" |
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return $_ret |
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} |
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_zyxel_gs1900_trigger_reboot() { |
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# Trigger a reboot via the management reboot page in the web ui |
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reboot_page_html=$(_get "${_zyxel_switch_base_uri}/cgi-bin/dispatcher.cgi?cmd=5888" | tr -d '\n') |
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reboot_xss_value=$(printf "%s" "$reboot_page_html" | _egrep_o 'name="XSSID"\s*value="[^"]+"' | sed 's/^.*="\([^"]\{1,\}\)"$/\1/g') |
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_secure_debug2 "reboot_xss_value" "$reboot_xss_value" |
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reboot_response_html=$(_post "XSSID=${reboot_xss_value}&cmd=5889&sysSubmit=Reboot" "${_zyxel_switch_base_uri}/cgi-bin/dispatcher.cgi" '' "POST" "application/x-www-form-urlencoded") |
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reboot_message=$(printf "%s" "$reboot_response_html" | tr -d '\t\r\n\v\f' | _egrep_o "Rebooting now...") |
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if [ -z "$reboot_message" ]; then |
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_err "Failed to trigger switch reboot!" |
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return 1 |
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fi |
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return 0 |
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} |
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|
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# html |
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_zyxel_html_extract_dates() { |
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html="$1" |
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# Extract all dates in the html which match the format "Mar 5 05:48:48 2024 GMT" |
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# Note that the number of spaces between the format sections may differ for some reason |
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printf "%s" "$html" | _egrep_o '[A-Za-z]{3}\s+[0-9]+\s+[0-9]+:[0-9]+:[0-9]+\s+[0-9]+\s+[A-Za-z]+' |
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} |
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|
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# html label |
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_zyxel_html_table_lookup() { |
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# Look up a value in the html representing the status page of the switch |
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# when provided with the html of the page and the label (i.e. "Model Name:") |
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html="$1" |
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label=$(printf "%s" "$2" | tr -d ' ') |
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lookup_result=$(printf "%s" "$html" | tr -d "\t\r\n\v\f" | sed 's/<tr>/\n<tr>/g' | sed 's/<td[^>]*>/<td>/g' | tr -d ' ' | grep -i "$label" | sed "s/<tr><td>$label<\/td><td>\([^<]\{1,\}\)<\/td><\/tr>/\1/i") |
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printf "%s" "$lookup_result" |
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return 0 |
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} |
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|
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# password |
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_zyxel_gs1900_password_obfuscate() { |
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# Return the password obfuscated via the same method used by the |
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# Zyxel Web UI login process |
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login_allowed_chrs="0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ" |
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login_pw_arg="$1" |
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login_pw_len="${#login_pw_arg}" |
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login_pw_index="${#login_pw_arg}" |
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|
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login_pw_obfuscated="" |
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i=1 |
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while [ "$i" -le "$(_math "321" - "$login_pw_index")" ]; do |
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append_chr="0" |
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|
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if [ "$((i % 5))" -eq 0 ] && [ "$login_pw_index" -gt 0 ]; then |
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login_pw_index=$(_math "$login_pw_index" - 1) |
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append_chr=$(echo "$login_pw_arg" | awk -v var="$login_pw_index" '{ str=substr($0,var+1,1); print str }') |
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elif [ "$i" -eq 123 ]; then |
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if [ "${login_pw_len}" -lt 10 ]; then |
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# The 123rd character must be 0 if the login_pw_arg is less than 10 characters |
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append_chr="0" |
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else |
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# Or the login_pw_arg divided by 10 rounded down if greater than or equal to 10 |
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append_chr=$(_math "$login_pw_len" / 10) |
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fi |
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elif [ $i -eq 289 ]; then |
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# the 289th character must be the len % 10 |
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append_chr=$(_math "$login_pw_len" % 10) |
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else |
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# add random characters for the sake of obfuscation... |
|||
rand=$(head -q /dev/urandom | tr -cd '0-9' | head -c5 | sed 's/^0\{1,\}//') |
|||
rand=$(printf "%5d" "$rand") |
|||
rand_idx=$(_math "$rand" % "${#login_allowed_chrs}") |
|||
append_chr=$(echo "$login_allowed_chrs" | awk -v var="$rand_idx" '{ str=substr($0,var+1,1); print str }') |
|||
fi |
|||
|
|||
login_pw_obfuscated="${login_pw_obfuscated}${append_chr}" |
|||
i=$(_math "$i" + 1) |
|||
done |
|||
|
|||
printf "%s" "$login_pw_obfuscated" |
|||
} |
|||
|
|||
_zyxel_gs1900_get_model() { |
|||
html="$1" |
|||
model_name=$(_zyxel_html_table_lookup "$html" "Model Name:") |
|||
printf "%s" "$model_name" |
|||
} |
|||
|
|||
_zyxel_gs1900_get_firmware_version() { |
|||
html="$1" |
|||
firmware_version=$(_zyxel_html_table_lookup "$html" "Firmware Version:" | _egrep_o "V[^.]+.[^(]+") |
|||
printf "%s" "$firmware_version" |
|||
} |
|||
|
|||
_zyxel_gs1900_parse_major_version() { |
|||
printf "%s" "$1" | sed 's/^V\([0-9]\{1,\}\).\{1,\}$/\1/gi' |
|||
} |
|||
|
|||
_zyxel_gs1900_parse_minor_version() { |
|||
printf "%s" "$1" | sed 's/^.\{1,\}\.\([0-9]\{1,\}\)$/\1/gi' |
|||
} |
|||
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