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118 lines
3.8 KiB
C++
118 lines
3.8 KiB
C++
/*
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WiFiServerBearSSL.cpp - SSL server for esp8266, mostly compatible
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with Arduino WiFi shield library
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Copyright (c) 2018 Earle F. Philhower, III
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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extern "C" {
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#include "osapi.h"
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#include "ets_sys.h"
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}
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#include <StackThunk.h>
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#include "debug.h"
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#include "ESP8266WiFi.h"
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#include "WiFiClient.h"
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#include "WiFiServer.h"
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#include "lwip/opt.h"
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#include "lwip/tcp.h"
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#include "lwip/inet.h"
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#include <include/ClientContext.h>
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#include "WiFiServerSecureBearSSL.h"
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namespace BearSSL {
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// Only need to call the standard server constructor
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WiFiServerSecure::WiFiServerSecure(IPAddress addr, uint16_t port) : WiFiServer(addr, port) {
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stack_thunk_add_ref();
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}
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// Only need to call the standard server constructor
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WiFiServerSecure::WiFiServerSecure(uint16_t port) : WiFiServer(port) {
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stack_thunk_add_ref();
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}
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WiFiServerSecure::WiFiServerSecure(const WiFiServerSecure &rhs) : WiFiServer(rhs) {
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*this = rhs;
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stack_thunk_add_ref();
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}
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WiFiServerSecure::~WiFiServerSecure() {
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stack_thunk_del_ref();
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}
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// Specify a RSA-signed certificate and key for the server. Only copies the pointer, the
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// caller needs to preserve this chain and key for the life of the object.
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void WiFiServerSecure::setRSACert(const X509List *chain, const PrivateKey *sk) {
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_chain = chain;
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_sk = sk;
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}
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// Specify a EC-signed certificate and key for the server. Only copies the pointer, the
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// caller needs to preserve this chain and key for the life of the object.
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void WiFiServerSecure::setECCert(const X509List *chain, unsigned cert_issuer_key_type, const PrivateKey *sk) {
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_chain = chain;
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_cert_issuer_key_type = cert_issuer_key_type;
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_sk = sk;
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}
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// Return a client if there's an available connection waiting. If one is returned,
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// then any validation (i.e. client cert checking) will have succeeded.
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WiFiClientSecure WiFiServerSecure::available(uint8_t* status) {
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(void) status; // Unused
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return accept();
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}
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WiFiClientSecure WiFiServerSecure::accept() {
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if (_unclaimed) {
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if (_sk && _sk->isRSA()) {
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WiFiClientSecure result(_unclaimed, _chain, _sk, _iobuf_in_size, _iobuf_out_size, _cache, _client_CA_ta, _tls_min, _tls_max);
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_unclaimed = _unclaimed->next();
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result.setNoDelay(_noDelay);
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DEBUGV("WS:av\r\n");
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return result;
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} else if (_sk && _sk->isEC()) {
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WiFiClientSecure result(_unclaimed, _chain, _cert_issuer_key_type, _sk, _iobuf_in_size, _iobuf_out_size, _cache, _client_CA_ta, _tls_min, _tls_max);
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_unclaimed = _unclaimed->next();
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result.setNoDelay(_noDelay);
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DEBUGV("WS:av\r\n");
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return result;
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} else {
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// No key was defined, so we can't actually accept and attempt accept() and SSL handshake.
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DEBUGV("WS:nokey\r\n");
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}
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}
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// Something weird, return a no-op object
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optimistic_yield(1000);
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return WiFiClientSecure();
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}
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bool WiFiServerSecure::setSSLVersion(uint32_t min, uint32_t max) {
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if ( ((min != BR_TLS10) && (min != BR_TLS11) && (min != BR_TLS12)) ||
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((max != BR_TLS10) && (max != BR_TLS11) && (max != BR_TLS12)) ||
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(max < min) ) {
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return false; // Invalid options
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}
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_tls_min = min;
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_tls_max = max;
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return true;
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}
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};
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