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WiFiSSLClient: add setEccSlot method to configure client private key and certificate #254

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Feb 15, 2024
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23 changes: 21 additions & 2 deletions libraries/WiFiS3/src/WiFiSSLClient.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -36,9 +36,14 @@ int WiFiSSLClient::connect(IPAddress ip, uint16_t port) {
int WiFiSSLClient::connect(const char* host, uint16_t port) {
/* -------------------------------------------------------------------------- */
getSocket();
if (!_custom_root) {
if (_root_ca != nullptr) {
setCACert(_root_ca);
} else {
setCACert();
}
if ((_ecc_slot != -1) && (_ecc_cert != nullptr) && (_ecc_cert_len != 0)) {
setEccSlot(_ecc_slot, _ecc_cert, _ecc_cert_len);
}
string res = "";
if (_connectionTimeout) {
if(modem.write(string(PROMPT(_SSLCLIENTCONNECT)),res, "%s%d,%s,%d,%d\r\n" , CMD_WRITE(_SSLCLIENTCONNECT), _sock, host,port, _connectionTimeout)) {
Expand All @@ -60,13 +65,27 @@ void WiFiSSLClient::setCACert(const char* root_ca, size_t size) {
if(size > 0) {
modem.write_nowait(string(PROMPT(_SETCAROOT)),res, "%s%d,%d\r\n" , CMD_WRITE(_SETCAROOT), _sock, size);
if(modem.passthrough((uint8_t *)root_ca, size)) {
_custom_root = true;
_root_ca = root_ca;
}
} else {
modem.write(string(PROMPT(_SETCAROOT)),res, "%s%d\r\n" , CMD_WRITE(_SETCAROOT), _sock);
}
}

/* -------------------------------------------------------------------------- */
void WiFiSSLClient::setEccSlot(int ecc508KeySlot, const byte cert[], int certLength) {
/* -------------------------------------------------------------------------- */
getSocket();
string res = "";
if(certLength > 0) {
modem.write_nowait(string(PROMPT(_SETECCSLOT)),res, "%s%d,%d,%d\r\n" , CMD_WRITE(_SETECCSLOT), _sock, ecc508KeySlot, certLength);
modem.passthrough((uint8_t *)cert, certLength);
_ecc_slot = ecc508KeySlot;
_ecc_cert = cert;
_ecc_cert_len = certLength;
}
}

/* -------------------------------------------------------------------------- */
size_t WiFiSSLClient::write(uint8_t b){
/* -------------------------------------------------------------------------- */
Expand Down
7 changes: 6 additions & 1 deletion libraries/WiFiS3/src/WiFiSSLClient.h
Original file line number Diff line number Diff line change
Expand Up @@ -34,6 +34,7 @@ class WiFiSSLClient : public WiFiClient {
virtual int connect(IPAddress ip, uint16_t port);
virtual int connect(const char* host, uint16_t port);
void setCACert(const char* root_ca = NULL, size_t size = 0);
void setEccSlot(int ecc508KeySlot, const byte cert[], int certLength);
virtual size_t write(uint8_t);
virtual size_t write(const uint8_t *buf, size_t size);
virtual int available();
Expand All @@ -60,10 +61,14 @@ class WiFiSSLClient : public WiFiClient {

private:
int _sock;
bool _custom_root = false;
void getSocket();
int _read();
void read_if_needed(size_t s);
const char* _root_ca = nullptr;
int _ecc_slot = -1;
const byte* _ecc_cert = nullptr;
int _ecc_cert_len = 0;

};

#endif /* WIFISSLCLIENT_H */