/usr/include/wvstreams/wvsslstream.h is in libwvstreams-dev 4.6.1-7.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 | /* -*- Mode: C++ -*-
* Worldvisions Weaver Software:
* Copyright (C) 1997-2002 Net Integration Technologies, Inc.
*
* SSL (Socket Security Layer) communications via WvStreams.
*/
#ifndef __WVSSLSTREAM_H
#define __WVSSLSTREAM_H
#include "wvfdstream.h"
#include "wvlog.h"
#include "wvstreamclone.h"
#include "wvtr1.h"
struct ssl_st;
struct ssl_ctx_st;
struct ssl_method_st;
typedef struct ssl_ctx_st SSL_CTX;
typedef struct ssl_st SSL;
typedef struct ssl_method_st SSL_METHOD;
class WvX509;
class WvX509Mgr;
class WvSSLStream;
typedef wv::function<bool(WvX509*)> WvSSLValidateCallback;
typedef wv::function<bool(WvX509*, WvSSLStream *)> WvSSLGlobalValidateCallback;
/**
* SSL Stream, handles SSLv2, SSLv3, and TLS
* Methods - If you want it to be a server, then you must feed the constructor
* a WvX509Mgr object
*/
class WvSSLStream : public WvStreamClone
{
public:
/* This ValidateCallback is purely more convenient to set (not passed in
* via constructor) than its local cousin. It is used when you want an
* easy way to assign a validation function to any WvSSLStream you might
* be using. NOTE: It should be assigned before you instantiate a stream,
* and should never be changed while WvSSLStreams still linger.
*
* NOTE: Using wv::bind can effectively bind an object with a particular
* function for this callback, so you can do all sorts of interesting stuff
* with it.
*/
static WvSSLGlobalValidateCallback global_vcb;
/**
* Start an SSL connection on the stream _slave. The x509 structure
* is optional for a client, and mandatory for a server. You need to
* keep the X509 object around for the entire life of this object!
*/
WvSSLStream(IWvStream *_slave, WvX509Mgr *_x509 = NULL,
WvSSLValidateCallback _vcb = 0, bool _is_server = false);
/** Cleans up everything (calls close + frees up the SSL Objects used) */
virtual ~WvSSLStream();
virtual void pre_select(SelectInfo &si);
virtual bool post_select(SelectInfo &si);
virtual void close();
virtual bool isok() const;
virtual void noread();
virtual void nowrite();
protected:
WvX509Mgr *x509;
/** SSL Context - used to create SSL Object */
SSL_CTX *ctx;
/**
* Main SSL Object - after SSL_set_fd() we make all calls through the
* connection through here
*/
SSL *ssl;
virtual size_t uwrite(const void *buf, size_t len);
virtual size_t uread(void *buf, size_t len);
private:
/**
* Connection Status Flag, since SSL takes a few seconds to
* initialize itself.
*/
bool sslconnected;
SelectRequest connect_wants;
/** Set the connected flag and flush the unconnected_buf */
void setconnected(bool conn);
/** Keep track of whether we are a client or a server */
bool is_server;
/** We have to override the WvStream noread/nowrite implementation... */
bool ssl_stop_read, ssl_stop_write;
/** Keep track of whether we want to check the peer who connects to us */
WvSSLValidateCallback vcb;
/** Internal Log Object */
WvLog debug;
/**
* SSL_write() may return an SSL_ERROR_WANT_WRITE code which
* indicates that the function should be called again with
* precisely the same arguments as the last time. To ensure that
* this can happen, we must unfortunately copy data into a bounce
* buffer and remeber the fact. We use a WvBuf here to allow
* an arbitrary amount of data to be set aside.
*/
WvInPlaceBuf write_bouncebuf;
size_t write_eat;
/** Similar nastiness happens with SSL_read() */
WvInPlaceBuf read_bouncebuf;
bool read_pending;
/** Need to buffer writes until sslconnected */
WvDynBuf unconnected_buf;
/** Prints out the entire SSL error queue */
void printerr(WvStringParm func);
public:
const char *wstype() const { return "WvSSLStream"; }
};
#endif // __WVSSLSTREAM_H
|