/*
Copyright (C) 2009, 2013 Red Hat, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see .
*/
#ifndef _H_REDS_STREAM
#define _H_REDS_STREAM
#include "spice.h"
#include "common/mem.h"
#include
#if HAVE_SASL
#include
typedef struct RedsSASL {
sasl_conn_t *conn;
/* If we want to negotiate an SSF layer with client */
int wantSSF :1;
/* If we are now running the SSF layer */
int runSSF :1;
/*
* Buffering encoded data to allow more clear data
* to be stuffed onto the output buffer
*/
const uint8_t *encoded;
unsigned int encodedLength;
unsigned int encodedOffset;
SpiceBuffer inbuffer;
char *username;
char *mechlist;
char *mechname;
/* temporary data during authentication */
unsigned int len;
char *data;
} RedsSASL;
#endif
typedef struct RedsStream RedsStream;
struct RedsStream {
int socket;
SpiceWatch *watch;
/* set it to TRUE if you shutdown the socket. shutdown read doesn't work as accepted -
receive may return data afterward. check the flag before calling receive*/
int shutdown;
SSL *ssl;
#if HAVE_SASL
RedsSASL sasl;
#endif
/* life time of info:
* allocated when creating RedsStream.
* deallocated when main_dispatcher handles the SPICE_CHANNEL_EVENT_DISCONNECTED
* event, either from same thread or by call back from main thread. */
SpiceChannelEventInfo* info;
/* private */
ssize_t (*read)(RedsStream *s, void *buf, size_t nbyte);
ssize_t (*write)(RedsStream *s, const void *buf, size_t nbyte);
ssize_t (*writev)(RedsStream *s, const struct iovec *iov, int iovcnt);
};
typedef enum {
REDS_STREAM_SSL_STATUS_OK,
REDS_STREAM_SSL_STATUS_ERROR,
REDS_STREAM_SSL_STATUS_WAIT_FOR_READ,
REDS_STREAM_SSL_STATUS_WAIT_FOR_WRITE
} RedsStreamSslStatus;
/* any thread */
ssize_t reds_stream_read(RedsStream *s, void *buf, size_t nbyte);
ssize_t reds_stream_write(RedsStream *s, const void *buf, size_t nbyte);
ssize_t reds_stream_writev(RedsStream *s, const struct iovec *iov, int iovcnt);
void reds_stream_free(RedsStream *s);
void reds_stream_push_channel_event(RedsStream *s, int event);
void reds_stream_remove_watch(RedsStream* s);
#endif