old-bear commented on code in PR #2102:
URL: https://github.com/apache/brpc/pull/2102#discussion_r1114448356
##########
src/brpc/server.cpp:
##########
@@ -642,6 +642,31 @@ int Server::InitializeOnce() {
return 0;
}
+int Server::InitALPNOptions(const ServerSSLOptions* options) {
+ if (options == nullptr) {
Review Comment:
如果openssl版本不支持，这里就直接报错？
##########
src/brpc/details/ssl_helper.cpp:
##########
@@ -441,6 +441,40 @@ static int SetSSLOptions(SSL_CTX* ctx, const std::string&
ciphers,
return 0;
}
+static int ServerALPNCallback(
+ SSL* ssl, const unsigned char** out, unsigned char* outlen,
+ const unsigned char* in, unsigned int inlen, void* arg) {
+ const std::string* alpns = static_cast<const std::string*>(arg);
+ if (alpns == nullptr) {
+ return SSL_TLSEXT_ERR_NOACK;
+ }
+
+ // Use OpenSSL standard select API.
+ int select_result = SSL_select_next_proto(
+ const_cast<unsigned char**>(out), outlen,
+ reinterpret_cast<const unsigned char*>(alpns->data()),
alpns->size(),
+ in, inlen);
+ return (select_result == OPENSSL_NPN_NEGOTIATED)
Review Comment:
如果没选择到，返回SSL_TLSEXT_ERR_NOACK会直接断开SSL链接吗？
和返回SSL_TLSEXT_ERR_ALERT_FATAL区别是啥？
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