Check-in [500c6b97d6]
Overview
Comment:Optimized use of pointers and comment format updates.
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | status_x509
Files: files | file ages | folders
SHA3-256: 500c6b97d6b54ef115cb06e8b307372c611a42a4dd7d011b3032205cf59814e8
User & Date: bohagan on 2023-05-27 21:14:50
Other Links: branch diff | manifest | tags
Context
2023-05-29
23:15
Added server callbacks for ALPN, SNI, and Hello messages check-in: a04a3aef6b user: bohagan tags: status_x509
2023-05-27
21:14
Optimized use of pointers and comment format updates. check-in: 500c6b97d6 user: bohagan tags: status_x509
19:20
Added session id and ticket to connection status. Added callback to handle session id and ticket updates after the handshake. check-in: 489f45bd81 user: bohagan tags: status_x509
Changes
279
280
281
282
283
284
285





286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304





305
306
307
308
309
310
311







+
+
+
+
+














-
-
-
-
-







        <dt><strong>state</strong> <em>state</em></dt>
        <dd>State of the connection: initializing, handshake, established</dd>
        <dt><strong>servername</strong> <em>name</em></dt>
        <dd>The name of the connected to server.</dd>
        <dt><strong>protocol</strong> <em>version</em></dt>
        <dd>The protocol version used for the connection:
	    SSL2, SSL3, TLS1, TLS1.1, TLS1.2, TLS1.3, or unknown.</dd>
        <dt><strong>renegotiation</strong> <em>state</em></dt>
        <dd>Whether protocol renegotiation is allowed or disallowed.</dd>
        <dt><strong>alpn</strong> <em>protocol</em></dt>
        <dd>The protocol selected after Application-Layer Protocol
	    Negotiation (ALPN).</dd>
        <dt><strong>securitylevel</strong> <em>level</em></dt>
        <dd>The security level used for selection of ciphers, key size, etc.</dd>
        <dt><strong>cipher</strong> <em>cipher</em></dt>
        <dd>The current cipher in use for the connection.</dd>
        <dt><strong>standard_name</strong> <em>name</em></dt>
        <dd>The standard RFC name of cipher.</dd>
        <dt><strong>bits</strong> <em>n</em></dt>
        <dd>The number of processed bits used for cipher.</dd>
        <dt><strong>secret_bits</strong> <em>n</em></dt>
        <dd>The number of secret bits used for cipher.</dd>
        <dt><strong>min_version</strong> <em>version</em></dt>
        <dd>The minimum protocol version for cipher.</dd>
        <dt><strong>description</strong> <em>string</em></dt>
        <dd>A text description of the cipher.</dd>
        <dt><strong>renegotiation</strong> <em>state</em></dt>
        <dd>Whether protocol renegotiation is allowed or disallowed.</dd>
        <dt><strong>alpn</strong> <em>protocol</em></dt>
        <dd>The protocol selected after Application-Layer Protocol
	    Negotiation (ALPN).</dd>
        <dt><strong>session_reused</strong> <em>boolean</em></dt>
        <dd>Whether the session has been reused or not.</dd>
        <dt><strong>session_id</strong> <em>string</em></dt>
        <dd>Unique session id for use in resuming the session.</dd>
        <dt><strong>session_ticket</strong> <em>string</em></dt>
        <dd>Unique session ticket for use in resuming the session.</dd>
        <dt><strong>resumable</strong> <em>boolean</em></dt>
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
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







+
+
+
+


















+








static Tcl_Mutex *locks = NULL;
static int locksCount = 0;
static Tcl_Mutex init_mx;
#endif /* OPENSSL_THREADS */
#endif /* TCL_THREADS */

/********************/
/* Callbacks        */
/********************/


/*
 *-------------------------------------------------------------------
 *
 * InfoCallback --
 *
 *	monitors SSL connection process
 *
 * Results:
 *	None
 *
 * Side effects:
 *	Calls callback (if defined)
 *-------------------------------------------------------------------
 */
static void
InfoCallback(const SSL *ssl, int where, int ret) {
    State *statePtr = (State*)SSL_get_app_data((SSL *)ssl);
    Tcl_Interp *interp	= statePtr->interp;
    Tcl_Obj *cmdPtr;
    char *major; char *minor;

    dprintf("Called");

    if (statePtr->callback == (Tcl_Obj*)NULL)
	return;
147
148
149
150
151
152
153
154
155


156
157
158


159
160
161

162
163
164
165
166

167
168

169
170
171

172
173
174
175

176
177
178
179

180
181
182
183
184
185
186
152
153
154
155
156
157
158


159
160
161


162
163
164
165

166
167
168
169
170

171
172

173
174
175

176
177
178
179

180
181
182
183

184
185
186
187
188
189
190
191







-
-
+
+

-
-
+
+


-
+




-
+

-
+


-
+



-
+



-
+







	if (where & SSL_CB_READ)		minor = "read";
	else if (where & SSL_CB_WRITE)		minor = "write";
	else if (where & SSL_CB_LOOP)		minor = "loop";
	else if (where & SSL_CB_EXIT)		minor = "exit";
	else					minor = "unknown";
    }

    Tcl_ListObjAppendElement(statePtr->interp, cmdPtr, Tcl_NewStringObj("info", -1));
    Tcl_ListObjAppendElement(statePtr->interp, cmdPtr,
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj("info", -1));
    Tcl_ListObjAppendElement(interp, cmdPtr,
	    Tcl_NewStringObj(Tcl_GetChannelName(statePtr->self), -1));
    Tcl_ListObjAppendElement(statePtr->interp, cmdPtr, Tcl_NewStringObj(major, -1));
    Tcl_ListObjAppendElement(statePtr->interp, cmdPtr, Tcl_NewStringObj(minor, -1));
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj(major, -1));
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj(minor, -1));

    if (where & (SSL_CB_LOOP|SSL_CB_EXIT)) {
	Tcl_ListObjAppendElement(statePtr->interp, cmdPtr,
	Tcl_ListObjAppendElement(interp, cmdPtr,
	    Tcl_NewStringObj(SSL_state_string_long(ssl), -1));
    } else if (where & SSL_CB_ALERT) {
	const char *cp = (char *) SSL_alert_desc_string_long(ret);

	Tcl_ListObjAppendElement(statePtr->interp, cmdPtr, Tcl_NewStringObj(cp, -1));
	Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj(cp, -1));
    } else {
	Tcl_ListObjAppendElement(statePtr->interp, cmdPtr,
	Tcl_ListObjAppendElement(interp, cmdPtr,
	    Tcl_NewStringObj(SSL_state_string_long(ssl), -1));
    }
    Tcl_Preserve((ClientData) statePtr->interp);
    Tcl_Preserve((ClientData) interp);
    Tcl_Preserve((ClientData) statePtr);

    Tcl_IncrRefCount(cmdPtr);
    (void) Tcl_EvalObjEx(statePtr->interp, cmdPtr, TCL_EVAL_GLOBAL);
    (void) Tcl_EvalObjEx(interp, cmdPtr, TCL_EVAL_GLOBAL);
    Tcl_DecrRefCount(cmdPtr);

    Tcl_Release((ClientData) statePtr);
    Tcl_Release((ClientData) statePtr->interp);
    Tcl_Release((ClientData) interp);
}

/*
 *-------------------------------------------------------------------
 *
 * VerifyCallback --
 *
203
204
205
206
207
208
209

210
211
212
213
214
215
216
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222







+







VerifyCallback(int ok, X509_STORE_CTX *ctx) {
    Tcl_Obj *cmdPtr, *result;
    char *errStr, *string;
    int length;
    SSL   *ssl		= (SSL*)X509_STORE_CTX_get_ex_data(ctx, SSL_get_ex_data_X509_STORE_CTX_idx());
    X509  *cert		= X509_STORE_CTX_get_current_cert(ctx);
    State *statePtr	= (State*)SSL_get_app_data(ssl);
    Tcl_Interp *interp	= statePtr->interp;
    int depth		= X509_STORE_CTX_get_error_depth(ctx);
    int err		= X509_STORE_CTX_get_error(ctx);
    int code;

    dprintf("Verify: %d", ok);

    if (!ok) {
224
225
226
227
228
229
230
231
232


233
234
235
236
237




238
239

240
241
242
243
244
245

246
247
248
249

250
251

252
253
254
255

256
257
258
259

260
261
262

263
264

265
266
267
268
269
270
271
272
273
274
275

276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293

294
295
296
297
298
299
300

301
302

303
304
305
306
307
308
309
310

311
312

313
314

315
316
317
318
319
320
321

322
323

324
325
326
327

328
329

330
331
332
333

334
335
336

337
338

339
340
341
342
343

344
345











346
347
348
349
350
351
352
230
231
232
233
234
235
236


237
238
239




240
241
242
243
244

245
246
247
248
249
250

251
252
253
254

255
256

257
258
259
260

261
262
263
264

265
266
267

268
269

270
271
272
273
274
275
276
277
278
279
280

281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306

307
308

309
310
311
312
313
314
315
316

317
318

319
320

321
322
323
324
325
326


327


328
329



330
331

332
333
334
335

336
337
338

339
340

341
342
343
344
345

346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366







-
-
+
+

-
-
-
-
+
+
+
+

-
+





-
+



-
+

-
+



-
+



-
+


-
+

-
+










-
+


















+






-
+

-
+







-
+

-
+

-
+





-
-
+
-
-
+

-
-
-
+

-
+



-
+


-
+

-
+




-
+


+
+
+
+
+
+
+
+
+
+
+







	    return ok;
	} else {
	    return 1;
	}
    }
    cmdPtr = Tcl_DuplicateObj(statePtr->callback);

    Tcl_ListObjAppendElement(statePtr->interp, cmdPtr, Tcl_NewStringObj("verify", -1));
    Tcl_ListObjAppendElement(statePtr->interp, cmdPtr,
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj("verify", -1));
    Tcl_ListObjAppendElement(interp, cmdPtr,
	    Tcl_NewStringObj(Tcl_GetChannelName(statePtr->self), -1));
    Tcl_ListObjAppendElement(statePtr->interp, cmdPtr, Tcl_NewIntObj(depth));
    Tcl_ListObjAppendElement(statePtr->interp, cmdPtr, Tls_NewX509Obj(statePtr->interp, cert));
    Tcl_ListObjAppendElement(statePtr->interp, cmdPtr, Tcl_NewIntObj(ok));
    Tcl_ListObjAppendElement(statePtr->interp, cmdPtr, Tcl_NewStringObj(errStr ? errStr : "", -1));
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewIntObj(depth));
    Tcl_ListObjAppendElement(interp, cmdPtr, Tls_NewX509Obj(interp, cert));
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewIntObj(ok));
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj(errStr ? errStr : "", -1));

    Tcl_Preserve((ClientData) statePtr->interp);
    Tcl_Preserve((ClientData) interp);
    Tcl_Preserve((ClientData) statePtr);

    statePtr->flags |= TLS_TCL_CALLBACK;

    Tcl_IncrRefCount(cmdPtr);
    code = Tcl_EvalObjEx(statePtr->interp, cmdPtr, TCL_EVAL_GLOBAL);
    code = Tcl_EvalObjEx(interp, cmdPtr, TCL_EVAL_GLOBAL);
    if (code != TCL_OK) {
	/* It got an error - reject the certificate.		*/
#if (TCL_MAJOR_VERSION == 8) && (TCL_MINOR_VERSION < 6)
	Tcl_BackgroundError(statePtr->interp);
	Tcl_BackgroundError(interp);
#else
	Tcl_BackgroundException(statePtr->interp, code);
	Tcl_BackgroundException(interp, code);
#endif
	ok = 0;
    } else {
	result = Tcl_GetObjResult(statePtr->interp);
	result = Tcl_GetObjResult(interp);
	string = Tcl_GetStringFromObj(result, &length);
	/* An empty result leaves verification unchanged.	*/
	if (string != NULL && length > 0) {
	    code = Tcl_GetIntFromObj(statePtr->interp, result, &ok);
	    code = Tcl_GetIntFromObj(interp, result, &ok);
	    if (code != TCL_OK) {
#if (TCL_MAJOR_VERSION == 8) && (TCL_MINOR_VERSION < 6)
		Tcl_BackgroundError(statePtr->interp);
		Tcl_BackgroundError(interp);
#else
		Tcl_BackgroundException(statePtr->interp, code);
		Tcl_BackgroundException(interp, code);
#endif
		ok = 0;
	    }
	}
    }
    Tcl_DecrRefCount(cmdPtr);

    statePtr->flags &= ~(TLS_TCL_CALLBACK);

    Tcl_Release((ClientData) statePtr);
    Tcl_Release((ClientData) statePtr->interp);
    Tcl_Release((ClientData) interp);
    return(ok);	/* By default, leave verification unchanged.	*/
}

/*
 *-------------------------------------------------------------------
 *
 * Tls_Error --
 *
 *	Calls callback with $fd and $msg - so the callback can decide
 *	what to do with errors.
 *
 * Side effects:
 *	The err field of the currently operative State is set
 *	  to a string describing the SSL negotiation failure reason
 *-------------------------------------------------------------------
 */
void
Tls_Error(State *statePtr, char *msg) {
    Tcl_Interp *interp	= statePtr->interp;
    Tcl_Obj *cmdPtr;
    int code;

    dprintf("Called");

    if (msg && *msg) {
	Tcl_SetErrorCode(statePtr->interp, "SSL", msg, (char *)NULL);
	Tcl_SetErrorCode(interp, "SSL", msg, (char *)NULL);
    } else {
	msg = Tcl_GetStringFromObj(Tcl_GetObjResult(statePtr->interp), NULL);
	msg = Tcl_GetStringFromObj(Tcl_GetObjResult(interp), NULL);
    }
    statePtr->err = msg;

    if (statePtr->callback == (Tcl_Obj*)NULL) {
	char buf[BUFSIZ];
	sprintf(buf, "SSL channel \"%s\": error: %s",
	    Tcl_GetChannelName(statePtr->self), msg);
	Tcl_SetResult(statePtr->interp, buf, TCL_VOLATILE);
	Tcl_SetResult(interp, buf, TCL_VOLATILE);
#if (TCL_MAJOR_VERSION == 8) && (TCL_MINOR_VERSION < 6)
	Tcl_BackgroundError(statePtr->interp);
	Tcl_BackgroundError(interp);
#else
	Tcl_BackgroundException(statePtr->interp, TCL_ERROR);
	Tcl_BackgroundException(interp, TCL_ERROR);
#endif
	return;
    }
    cmdPtr = Tcl_DuplicateObj(statePtr->callback);

    Tcl_ListObjAppendElement(statePtr->interp, cmdPtr,
	    Tcl_NewStringObj("error", -1));
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj("error", -1));

    Tcl_ListObjAppendElement(statePtr->interp, cmdPtr,
    Tcl_ListObjAppendElement(interp, cmdPtr,
	    Tcl_NewStringObj(Tcl_GetChannelName(statePtr->self), -1));

    Tcl_ListObjAppendElement(statePtr->interp, cmdPtr,
	    Tcl_NewStringObj(msg, -1));
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj(msg, -1));

    Tcl_Preserve((ClientData) statePtr->interp);
    Tcl_Preserve((ClientData) interp);
    Tcl_Preserve((ClientData) statePtr);

    Tcl_IncrRefCount(cmdPtr);
    code = Tcl_EvalObjEx(statePtr->interp, cmdPtr, TCL_EVAL_GLOBAL);
    code = Tcl_EvalObjEx(interp, cmdPtr, TCL_EVAL_GLOBAL);
    if (code != TCL_OK) {
#if (TCL_MAJOR_VERSION == 8) && (TCL_MINOR_VERSION < 6)
	Tcl_BackgroundError(statePtr->interp);
	Tcl_BackgroundError(interp);
#else
	Tcl_BackgroundException(statePtr->interp, code);
	Tcl_BackgroundException(interp, code);
#endif
    }
    Tcl_DecrRefCount(cmdPtr);
    Tcl_Release((ClientData) statePtr);
    Tcl_Release((ClientData) statePtr->interp);
    Tcl_Release((ClientData) interp);
}

/*
 *-------------------------------------------------------------------
 *
 * KeyLogCallback --
 *
 *	Write received key data to log file.
 *
 * Side effects:
 *	none
 *-------------------------------------------------------------------
 */
void KeyLogCallback(const SSL *ssl, const char *line) {
    char *str = getenv(SSLKEYLOGFILE);
    FILE *fd;
    if (str) {
	fd = fopen(str, "a");
	fprintf(fd, "%s\n",line);
	fclose(fd);
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
460
461
462
463
464
465
466

467
468
469
470
471
472
473







-







	return 0;

    cmdPtr = Tcl_DuplicateObj(statePtr->callback);

    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj( "session", -1));

    /* Session id */
    session = SSL_get_session(statePtr->ssl);
    session_id = SSL_SESSION_get0_id_context(session, &len);
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj(session_id, len));

    /* Session ticket */
    SSL_SESSION_get0_ticket(session, &ticket, &len2);
    Tcl_ListObjAppendElement(interp, cmdPtr, Tcl_NewStringObj(ticket, (int)len2));

477
478
479
480
481
482
483




484
485
486
487
488
489
490
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507







+
+
+
+







    Tcl_DecrRefCount(cmdPtr);

    Tcl_Release((ClientData) statePtr);
    Tcl_Release((ClientData) interp);
    return 1;
}

/********************/
/* Commands         */
/********************/

/*
 *-------------------------------------------------------------------
 *
 * CiphersObjCmd -- list available ciphers
 *
 *	This procedure is invoked to process the "tls::ciphers" command
 *	to list available ciphers, based upon protocol selected.
720
721
722
723
724
725
726
727
728

729
730
731
732
733
734
735
736
737
738
739
740
741
742
743


744

745
746
747
748
749
750
751







-
-
+
-







    }

    chan = Tcl_GetChannel(interp, Tcl_GetStringFromObj(objv[1], NULL), NULL);
    if (chan == (Tcl_Channel) NULL) {
	return(TCL_ERROR);
    }

    /*
     * Make sure to operate on the topmost channel
    /* Make sure to operate on the topmost channel */
     */
    chan = Tcl_GetTopChannel(chan);
    if (Tcl_GetChannelType(chan) != Tls_ChannelType()) {
	Tcl_AppendResult(interp, "bad channel \"", Tcl_GetChannelName(chan), "\": not a TLS channel", NULL);
	return(TCL_ERROR);
    }
    statePtr = (State *)Tcl_GetChannelInstanceData(chan);

841
842
843
844
845
846
847
848
849

850
851
852
853
854
855
856
857
856
857
858
859
860
861
862


863

864
865
866
867
868
869
870







-
-
+
-







    }

    chan = Tcl_GetChannel(interp, Tcl_GetStringFromObj(objv[1], NULL), NULL);
    if (chan == (Tcl_Channel) NULL) {
	return TCL_ERROR;
    }

    /*
     * Make sure to operate on the topmost channel
    /* Make sure to operate on the topmost channel */
     */
    chan = Tcl_GetTopChannel(chan);

    for (idx = 2; idx < objc; idx++) {
	char *opt = Tcl_GetStringFromObj(objv[idx], NULL);

	if (opt[0] != '-')
	    break;
1126
1127
1128
1129
1130
1131
1132
1133
1134

1135
1136
1137
1138
1139
1140
1141
1142
1139
1140
1141
1142
1143
1144
1145


1146

1147
1148
1149
1150
1151
1152
1153







-
-
+
-







    }

    chan = Tcl_GetChannel(interp, Tcl_GetString(objv[1]), NULL);
    if (chan == (Tcl_Channel) NULL) {
	return TCL_ERROR;
    }

    /*
     * Make sure to operate on the topmost channel
    /* Make sure to operate on the topmost channel */
     */
    chan = Tcl_GetTopChannel(chan);

    if (Tcl_GetChannelType(chan) != Tls_ChannelType()) {
	Tcl_AppendResult(interp, "bad channel \"", Tcl_GetChannelName(chan),
		"\": not a TLS channel", NULL);
	return TCL_ERROR;
    }
1517
1518
1519
1520
1521
1522
1523
1524
1525

1526
1527
1528
1529
1530
1531
1532
1533
1528
1529
1530
1531
1532
1533
1534


1535

1536
1537
1538
1539
1540
1541
1542







-
-
+
-







	    return TCL_ERROR;
    }

    chan = Tcl_GetChannel(interp, channelName, &mode);
    if (chan == (Tcl_Channel) NULL) {
	return TCL_ERROR;
    }
    /*
     * Make sure to operate on the topmost channel
    /* Make sure to operate on the topmost channel */
     */
    chan = Tcl_GetTopChannel(chan);
    if (Tcl_GetChannelType(chan) != Tls_ChannelType()) {
	Tcl_AppendResult(interp, "bad channel \"", Tcl_GetChannelName(chan),
		"\": not a TLS channel", NULL);
	return TCL_ERROR;
    }
    statePtr = (State *) Tcl_GetChannelInstanceData(chan);
1604
1605
1606
1607
1608
1609
1610
1611
1612

1613
1614
1615
1616
1617
1618
1619
1620
1621
1622

1623
1624


1625
1626
1627
1628
1629
1630
1631
1632











1633
1634
1635
1636



1637
1638
1639
1640



1641










1642
1643
1644
1645
1646






1647
1648
1649
1650
1651
1652
1653
1613
1614
1615
1616
1617
1618
1619


1620

1621
1622
1623
1624
1625
1626
1627
1628

1629
1630
1631
1632
1633








1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645



1646
1647
1648
1649



1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663





1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676







-
-
+
-








-
+


+
+
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+

-
-
-
+
+
+

-
-
-
+
+
+

+
+
+
+
+
+
+
+
+
+
-
-
-
-
-
+
+
+
+
+
+







    }

    chan = Tcl_GetChannel(interp, Tcl_GetStringFromObj(objv[1], NULL), NULL);
    if (chan == (Tcl_Channel) NULL) {
	return(TCL_ERROR);
    }

    /*
     * Make sure to operate on the topmost channel
    /* Make sure to operate on the topmost channel */
     */
    chan = Tcl_GetTopChannel(chan);
    if (Tcl_GetChannelType(chan) != Tls_ChannelType()) {
	Tcl_AppendResult(interp, "bad channel \"", Tcl_GetChannelName(chan), "\": not a TLS channel", NULL);
	return(TCL_ERROR);
    }

    objPtr = Tcl_NewListObj(0, NULL);

    /* Get connection state */
    /* Connection info */
    statePtr = (State *)Tcl_GetChannelInstanceData(chan);
    ssl = statePtr->ssl;
    if (ssl != NULL) {
	const char *state;
    Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj("state", -1));
    if (SSL_is_init_finished(ssl)) {
	Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj("established", -1));
    } else if (SSL_in_init(ssl)) {
	Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj("handshake", -1));
    } else {
	Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj("initializing", -1));
    }

	/* connection state */
	if (SSL_is_init_finished(ssl)) {
	    state = "established";
	} else if (SSL_in_init(ssl)) {
	    state = "handshake";
	} else {
	    state = "initializing";
	}
	Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj("state", -1));
	Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(state, -1));

    /* Get server name */
    Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj("servername", -1));
    Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(SSL_get_servername(ssl, TLSEXT_NAMETYPE_host_name), -1));
	/* Get server name */
	Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj("servername", -1));
	Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(SSL_get_servername(ssl, TLSEXT_NAMETYPE_host_name), -1));

    /* Get protocol */
    Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj("protocol", -1));
    Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(SSL_get_version(ssl), -1));
	/* Get protocol */
	Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj("protocol", -1));
	Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(SSL_get_version(ssl), -1));

	/* Renegotiation allowed */
	Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj("renegotiation", -1));
	Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(
	    SSL_get_secure_renegotiation_support(ssl) ? "allowed" : "not supported", -1));

	/* Report the selected protocol as a result of the ALPN negotiation */
	SSL_get0_alpn_selected(ssl, &proto, &len);
	Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj("alpn", -1));
	Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj((char *)proto, (int)len));

    /* Get security level */
    Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj("securitylevel", -1));
    Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewIntObj(SSL_get_security_level(ssl)));

    /* Get cipher */
	/* Get security level */
	Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj("securitylevel", -1));
	Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewIntObj(SSL_get_security_level(ssl)));
    }

    /* Cipher info */
    cipher = SSL_get_current_cipher(ssl);
    if (cipher != NULL) {
	char buf[BUFSIZ] = {0};
	int bits, alg_bits;

	Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj("cipher", -1));
	Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(SSL_CIPHER_get_name(cipher), -1));
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695









1696
1697
1698
1699
1700
1701
1702







-
-
-
-
-
-
-
-
-








	if (SSL_CIPHER_description(cipher, buf, sizeof(buf)) != NULL) {
	    Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj("description", -1));
	    Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(buf, -1));
	}
    }

    Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj("renegotiation", -1));
    Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(
	SSL_get_secure_renegotiation_support(ssl) ? "allowed" : "not supported", -1));

    /* Report the selected protocol as a result of the negotiation */
    SSL_get0_alpn_selected(ssl, &proto, &len);
    Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj("alpn", -1));
    Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj((char *)proto, (int)len));

    /* Session info */
    session = SSL_get_session(ssl);
    if (session != NULL) {
	const unsigned char *ticket;
	size_t len2;
	const unsigned char *session_id;

1713
1714
1715
1716
1717
1718
1719
1720
1721
1722

1723
1724

1725
1726
1727
1728
1729
1730
1731
1727
1728
1729
1730
1731
1732
1733

1734
1735
1736
1737

1738
1739
1740
1741
1742
1743
1744
1745







-


+

-
+







	Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewLongObj(SSL_SESSION_get_timeout(session)));
    }

#if defined(HAVE_SSL_COMPRESSION)
    /* Compression info */
    comp = SSL_get_current_compression(ssl);
    if (comp != NULL) {
	expansion = SSL_get_current_expansion(ssl);
	Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj("compression", -1));
	Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(SSL_COMP_get_name(comp), -1));
	comp = SSL_get_current_expansion(ssl);
	Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj("expansion", -1));
	Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(SSL_COMP_get_name(expansion), -1));
	Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(SSL_COMP_get_name(comp), -1));
    }
#endif

    Tcl_SetObjResult(interp, objPtr);
    return TCL_OK;
	clientData = clientData;
}
1966
1967
1968
1969
1970
1971
1972




1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997







+
+
+
+







    default:
	break;
    }
    return TCL_OK;
	clientData = clientData;
}

/********************/
/* Init             */
/********************/

/*
 *-------------------------------------------------------------------
 *
 * Tls_Free --
 *
 *	This procedure cleans up when a SSL socket based channel
 *	is closed and its reference count falls below 1