nghttpx: Don't build PSK features with LibreSSL

LibreSSL removed PSK
Signed-off-by: Bernard Spil <brnrd@FreeBSD.org>

src/shrpx.cc

@@ -2119,6 +2119,7 @@ SSL/TLS:
               argument <CERT>, or  certificate option in configuration
               file.   For   additional  certificates,   use  --subcert
               option.  This option requires OpenSSL >= 1.0.2.
+#if !LIBRESSL_IN_USE
   --psk-secrets=<PATH>
               Read list of PSK identity and secrets from <PATH>.  This
               is used for frontend connection.  The each line of input
@@ -2146,6 +2147,7 @@ SSL/TLS:
               HTTP/2.   To  use  those   cipher  suites  with  HTTP/2,
               consider   to  use   --client-no-http2-cipher-black-list
               option.  But be aware its implications.
+#endif // !LIBRESSL_IN_USE
 
 HTTP/2 and SPDY:
   -c, --frontend-http2-max-concurrent-streams=<N>
@@ -3125,8 +3127,10 @@ int main(int argc, char **argv) {
         {SHRPX_OPT_DNS_MAX_TRY.c_str(), required_argument, &flag, 145},
         {SHRPX_OPT_FRONTEND_KEEP_ALIVE_TIMEOUT.c_str(), required_argument,
          &flag, 146},
+#if !LIBRESSL_IN_USE
         {SHRPX_OPT_PSK_SECRETS.c_str(), required_argument, &flag, 147},
         {SHRPX_OPT_CLIENT_PSK_SECRETS.c_str(), required_argument, &flag, 148},
+#endif
         {SHRPX_OPT_CLIENT_NO_HTTP2_CIPHER_BLACK_LIST.c_str(), no_argument,
          &flag, 149},
         {SHRPX_OPT_CLIENT_CIPHERS.c_str(), required_argument, &flag, 150},
@@ -3821,6 +3825,7 @@ int main(int argc, char **argv) {
         cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND_KEEP_ALIVE_TIMEOUT,
                              StringRef{optarg});
         break;
+#if !LIBRESSL_IN_USE
       case 147:
         // --psk-secrets
         cmdcfgs.emplace_back(SHRPX_OPT_PSK_SECRETS, StringRef{optarg});
@@ -3829,6 +3834,7 @@ int main(int argc, char **argv) {
         // --client-psk-secrets
         cmdcfgs.emplace_back(SHRPX_OPT_CLIENT_PSK_SECRETS, StringRef{optarg});
         break;
+#endif // !LIBRESSL_IN_USE
       case 149:
         // --client-no-http2-cipher-black-list
         cmdcfgs.emplace_back(SHRPX_OPT_CLIENT_NO_HTTP2_CIPHER_BLACK_LIST,

src/shrpx_config.cc

@@ -1199,6 +1199,7 @@ int read_tls_sct_from_dir(std::vector<uint8_t> &dst, const StringRef &opt,
 }
 } // namespace
 
+#if !LIBRESSL_IN_USE
 namespace {
 // Reads PSK secrets from path, and parses each line.  The result is
 // directly stored into config->tls.psk_secrets.  This function
@@ -1262,7 +1263,9 @@ int parse_psk_secrets(Config *config, const StringRef &path) {
   return 0;
 }
 } // namespace
+#endif // !LIBRESSL_IN_USE
 
+#if !LIBRESSL_IN_USE
 namespace {
 // Reads PSK secrets from path, and parses each line.  The result is
 // directly stored into config->tls.client.psk.  This function returns
@@ -1322,6 +1325,7 @@ int parse_client_psk_secrets(Config *config, const StringRef &path) {
   return 0;
 }
 } // namespace
+#endif // !LIBRESSL_IN_USE
 
 // generated by gennghttpxfun.py
 int option_lookup_token(const char *name, size_t namelen) {
@@ -1490,10 +1494,12 @@ int option_lookup_token(const char *name, size_t namelen) {
       if (util::strieq_l("ecdh-curve", name, 10)) {
         return SHRPX_OPTID_ECDH_CURVES;
       }
+#if !LIBRESSL_IN_USE
       if (util::strieq_l("psk-secret", name, 10)) {
         return SHRPX_OPTID_PSK_SECRETS;
       }
       break;
+#endif
     case 't':
       if (util::strieq_l("write-burs", name, 10)) {
         return SHRPX_OPTID_WRITE_BURST;
@@ -1683,11 +1689,13 @@ int option_lookup_token(const char *name, size_t namelen) {
         return SHRPX_OPTID_ADD_REQUEST_HEADER;
       }
       break;
+#if !LIBRESSL_IN_USE
     case 's':
       if (util::strieq_l("client-psk-secret", name, 17)) {
         return SHRPX_OPTID_CLIENT_PSK_SECRETS;
       }
       break;
+#endif // !LIBRESSL_IN_USE
     case 't':
       if (util::strieq_l("dns-lookup-timeou", name, 17)) {
         return SHRPX_OPTID_DNS_LOOKUP_TIMEOUT;
@@ -3283,10 +3291,12 @@ int parse_config(Config *config, int optid, const StringRef &opt,
   case SHRPX_OPTID_FRONTEND_KEEP_ALIVE_TIMEOUT:
     return parse_duration(&config->conn.upstream.timeout.idle_read, opt,
                           optarg);
+#if !LIBRESSL_IN_USE
   case SHRPX_OPTID_PSK_SECRETS:
     return parse_psk_secrets(config, optarg);
   case SHRPX_OPTID_CLIENT_PSK_SECRETS:
     return parse_client_psk_secrets(config, optarg);
+#endif // !LIBRESSL_IN_USE
   case SHRPX_OPTID_CLIENT_NO_HTTP2_CIPHER_BLACK_LIST:
     config->tls.client.no_http2_cipher_black_list =
         util::strieq_l("yes", optarg);

src/shrpx_ssl.cc

@@ -525,6 +525,7 @@ int sct_parse_cb(SSL *ssl, unsigned int ext_type, const unsigned char *in,
 } // namespace
 #endif // !LIBRESSL_IN_USE && OPENSSL_VERSION_NUMBER >= 0x10002000L
 
+#if !LIBRESSL_IN_USE
 namespace {
 unsigned int psk_server_cb(SSL *ssl, const char *identity, unsigned char *psk,
                            unsigned int max_psk_len) {
@@ -548,7 +549,9 @@ unsigned int psk_server_cb(SSL *ssl, const char *identity, unsigned char *psk,
   return static_cast<unsigned int>(secret.size());
 }
 } // namespace
+#endif // !LIBRESSL_IN_USE
 
+#if !LIBRESSL_IN_USE
 namespace {
 unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity_out,
                            unsigned int max_identity_len, unsigned char *psk,
@@ -581,6 +584,7 @@ unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity_out,
   return (unsigned int)secret.size();
 }
 } // namespace
+#endif // !LIBRESSL_IN_USE
 
 struct TLSProtocol {
   StringRef name;
@@ -784,7 +788,9 @@ SSL_CTX *create_ssl_context(const char *private_key_file, const char *cert_file,
   }
 #endif // !LIBRESSL_IN_USE && OPENSSL_VERSION_NUMBER >= 0x10002000L
 
+#if !LIBRESSL_IN_USE
   SSL_CTX_set_psk_server_callback(ssl_ctx, psk_server_cb);
+#endif // !LIBRESSL_IN_USE
 
   auto tls_ctx_data = new TLSContextData();
   tls_ctx_data->cert_file = cert_file;
@@ -919,7 +925,9 @@ SSL_CTX *create_ssl_client_context(
 #endif // HAVE_NEVERBLEED
   }
 
+#if !LIBRESSL_IN_USE
   SSL_CTX_set_psk_client_callback(ssl_ctx, psk_client_cb);
+#endif // !LIBRESSL_IN_USE
 
   // NPN selection callback.  This is required to set SSL_CTX because
   // OpenSSL does not offer SSL_set_next_proto_select_cb.