Files
wlan-ap/feeds/tip/cloud_discovery/files/usr/bin/est_client
John Crispin 16d029f10f cloud_discovery: split EST code out into its own tool
Fixes: WIFI-14694
Signed-off-by: John Crispin <john@phrozen.org>
2025-07-01 07:18:54 +02:00

117 lines
3.3 KiB
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Executable File

#!/usr/bin/ucode
'use strict';
import { ulog_open, ulog, ULOG_SYSLOG, ULOG_STDIO, LOG_DAEMON, LOG_INFO } from 'log';
import * as fs from 'fs';
ulog_open(ULOG_SYSLOG | ULOG_STDIO, LOG_DAEMON, "est_client");
function generate_csr() {
if (!fs.stat('/rmp/csr.nohdr.p10')) {
let pipe = fs.popen('openssl x509 -in /etc/ucentral/cert.pem -noout -subject');
let subject = pipe.read("all");
pipe.close();
subject = rtrim(subject);
subject = replace(subject, 'subject=', '/');
subject = replace(subject, ' = ', '=');
subject = replace(subject, ', ', '/');
let ret = system(`openssl req -subj "${subject}" -new -key /etc/ucentral/key.pem -out /tmp/csr.p10`);
if (ret) {
ulog(LOG_INFO, 'Failed to generate CSR\n');
return 1;
}
let input = fs.open('/tmp/csr.p10', 'r');
let output = fs.open('/tmp/csr.nohdr.p10', 'w');
let line;
while (line = input.read('line')) {
if (substr(line, 0, 4) == '----')
continue;
output.write(line);
}
input.close();
output.close();
ulog(LOG_INFO, 'Generated CSR\n');
}
return 0;
}
function store_operational_cert(path) {
system('mount_certs');
system(`cp ${path} /certificates/`);
}
function p7_too_pem(src, dst) {
let input = fs.readfile(src);
let output = fs.open('/tmp/convert.p7', 'w');
output.write('-----BEGIN PKCS #7 SIGNED DATA-----\n');
output.write(`${input}\n-----END PKCS #7 SIGNED DATA-----`);
output.close();
let ret = system(`openssl pkcs7 -outform PEM -print_certs -in /tmp/convert.p7 -out ${dst}`);
if (ret) {
ulog(LOG_INFO, 'Failed to convert P7 to PEM\n');
return 1;
}
return 0;
}
function discover_operational_cert() {
if (fs.stat('/etc/ucentral/operational.pem')) {
ulog(LOG_INFO, 'Operational certificate is present\n');
return 0;
}
if (generate_csr())
return 1;
let ret = system('curl -X POST https://qaest.certificates.open-lan.org:8001/.well-known/est/simpleenroll -d @/tmp/csr.nohdr.p10 -H "Content-Type: application/pkcs10" --cert /etc/ucentral/cert.pem --key /etc/ucentral/key.pem --cacert /etc/ucentral/insta.pem -o /tmp/operational.nohdr.p7');
if (ret) {
ulog(LOG_INFO, 'Failed to request operational certificate\n');
return 1;
}
ulog(LOG_INFO, 'EST succeeded\n');
ret = p7_too_pem('/tmp/operational.nohdr.p7', '/etc/ucentral/operational.pem');
if (ret) {
ulog(LOG_INFO, 'Failed to convert P7 to PEM\n');
return 1;
}
ulog(LOG_INFO, 'Converted P7 to PEM\n');
store_operational_cert('/etc/ucentral/operational.pem');
return 0;
}
function discover_operational_ca() {
if (fs.stat('/etc/ucentral/operational.ca')) {
ulog(LOG_INFO, 'Operational CA is present\n');
return 0;
}
let ret = system('curl -X GET https://qaest.certificates.open-lan.org:8001/.well-known/est/cacerts --cert /etc/ucentral/cert.pem --key /etc/ucentral/key.pem --cacert /etc/ucentral/insta.pem -o /tmp/operational.ca.nohdr.p7');
if (!ret)
ret = p7_too_pem('/tmp/operational.ca.nohdr.p7', '/etc/ucentral/operational.ca');
if (ret) {
ulog(LOG_INFO, 'Failed to load CA\n');
return 1;
}
system('cat /etc/ucentral/openlan.pem >> /etc/ucentral/operational.ca');
ulog(LOG_INFO, 'Acquired CA\n');
store_operational_cert('/etc/ucentral/operational.ca');
return 0;
}
switch(ARGV[0]) {
case 'enroll':
if (discover_operational_cert())
exit(1);
if (discover_operational_ca())
exit(1);
exit(0);
break;
}