static gint
socket_recv_messages (NiceSocket *sock,
NiceInputMessage *recv_messages, guint n_recv_messages)
{
PseudoSSLPriv *priv = sock->priv;
/* Socket has been closed: */
if (sock->priv == NULL)
return 0;
if (priv->handshaken) {
if (priv->base_socket) {
/* Fast path: once we’ve done the handshake, pass straight through to the
* base socket. */
return nice_socket_recv_messages (priv->base_socket,
recv_messages, n_recv_messages);
}
} else {
guint8 data[MAX(sizeof(SSL_SERVER_GOOGLE_HANDSHAKE),
sizeof(SSL_SERVER_MSOC_HANDSHAKE))];
gint ret = -1;
GInputVector local_recv_buf = { data, sizeof(data) };
NiceInputMessage local_recv_message = { &local_recv_buf, 1, NULL, 0 };
if (priv->compatibility == NICE_PSEUDOSSL_SOCKET_COMPATIBILITY_MSOC) {
local_recv_buf.size = sizeof(SSL_SERVER_MSOC_HANDSHAKE);
} else {
local_recv_buf.size = sizeof(SSL_SERVER_GOOGLE_HANDSHAKE);
}
if (priv->base_socket) {
ret = nice_socket_recv_messages (priv->base_socket,
&local_recv_message, 1);
}
if (ret <= 0) {
return ret;
} else if (ret == 1 && server_handshake_valid(sock, &local_recv_buf,
local_recv_message.length)) {
priv->handshaken = TRUE;
nice_socket_flush_send_queue (priv->base_socket, &priv->send_queue);
} else {
if (priv->base_socket)
nice_socket_free (priv->base_socket);
priv->base_socket = NULL;
return -1;
}
}
return 0;
}
/**
* Checks whether given header is valid.
*/
inline bool valid(header& hdr) {
switch (hdr.operation) {
default:
return false; // invalid operation field
case server_handshake:
return server_handshake_valid(hdr);
case client_handshake:
return client_handshake_valid(hdr);
case dispatch_message:
return dispatch_message_valid(hdr);
case announce_proxy_instance:
return announce_proxy_instance_valid(hdr);
case kill_proxy_instance:
return kill_proxy_instance_valid(hdr);
}
}