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Add ALPN support to WiFiClientSecure (#5633)

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This adds a function to WiFiClientSecure to set the ALPN protocol.

This is required for an MQTT client to connect to AWS IoT when using an AWS Custom Authorizer, as described here.

Example code snippet:

...
WiFiClientSecure wiFiClient;

// ALPN protocol, needed with AWS custom authorizer
const char *aws_protos[] = {"mqtt", NULL};

void setup() {
  wiFiClient.setCACert(AWSCAPEM);
  wiFiClient.setAlpnProtocols(aws_protos);
}
...
This commit is contained in:
Anthony Elder
2021-10-25 07:20:47 +01:00
committed by GitHub
parent 02c3ec01cc
commit 15bbd0a187
6 changed files with 36 additions and 4 deletions
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2
libraries/WiFiClientSecure/src/ssl_client.h
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@ -29,7 +29,7 @@ typedef struct sslclient_context {
void ssl_init(sslclient_context *ssl_client);
int start_ssl_client(sslclient_context *ssl_client, const char *host, uint32_t port, int timeout, const char *rootCABuff, const char *cli_cert, const char *cli_key, const char *pskIdent, const char *psKey, bool insecure);
int start_ssl_client(sslclient_context *ssl_client, const char *host, uint32_t port, int timeout, const char *rootCABuff, const char *cli_cert, const char *cli_key, const char *pskIdent, const char *psKey, bool insecure, const char **alpn_protos);
void stop_ssl_socket(sslclient_context *ssl_client, const char *rootCABuff, const char *cli_cert, const char *cli_key);
int data_to_read(sslclient_context *ssl_client);
int send_ssl_data(sslclient_context *ssl_client, const uint8_t *data, size_t len);