xref: /freebsd/crypto/openssl/ssl/t1_trce.c (revision 7447ca0eb235974642312b9555caec00b57d8fc1)
1 /* ssl/t1_trce.c */
2 /*
3  * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
4  * project.
5  */
6 /* ====================================================================
7  * Copyright (c) 2012 The OpenSSL Project.  All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  *
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  *
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in
18  *    the documentation and/or other materials provided with the
19  *    distribution.
20  *
21  * 3. All advertising materials mentioning features or use of this
22  *    software must display the following acknowledgment:
23  *    "This product includes software developed by the OpenSSL Project
24  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25  *
26  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27  *    endorse or promote products derived from this software without
28  *    prior written permission. For written permission, please contact
29  *    licensing@OpenSSL.org.
30  *
31  * 5. Products derived from this software may not be called "OpenSSL"
32  *    nor may "OpenSSL" appear in their names without prior written
33  *    permission of the OpenSSL Project.
34  *
35  * 6. Redistributions of any form whatsoever must retain the following
36  *    acknowledgment:
37  *    "This product includes software developed by the OpenSSL Project
38  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39  *
40  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
44  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51  * OF THE POSSIBILITY OF SUCH DAMAGE.
52  * ====================================================================
53  *
54  */
55 
56 #include "ssl_locl.h"
57 
58 #ifndef OPENSSL_NO_SSL_TRACE
59 
60 /* Packet trace support for OpenSSL */
61 
62 typedef struct {
63     int num;
64     const char *name;
65 } ssl_trace_tbl;
66 
67 # define ssl_trace_str(val, tbl) \
68         do_ssl_trace_str(val, tbl, sizeof(tbl)/sizeof(ssl_trace_tbl))
69 
70 # define ssl_trace_list(bio, indent, msg, msglen, value, table) \
71         do_ssl_trace_list(bio, indent, msg, msglen, value, \
72          table, sizeof(table)/sizeof(ssl_trace_tbl))
73 
74 static const char *do_ssl_trace_str(int val, ssl_trace_tbl *tbl, size_t ntbl)
75 {
76     size_t i;
77     for (i = 0; i < ntbl; i++, tbl++) {
78         if (tbl->num == val)
79             return tbl->name;
80     }
81     return "UNKNOWN";
82 }
83 
84 static int do_ssl_trace_list(BIO *bio, int indent,
85                              const unsigned char *msg, size_t msglen,
86                              size_t vlen, ssl_trace_tbl *tbl, size_t ntbl)
87 {
88     int val;
89     if (msglen % vlen)
90         return 0;
91     while (msglen) {
92         val = msg[0];
93         if (vlen == 2)
94             val = (val << 8) | msg[1];
95         BIO_indent(bio, indent, 80);
96         BIO_printf(bio, "%s (%d)\n", do_ssl_trace_str(val, tbl, ntbl), val);
97         msg += vlen;
98         msglen -= vlen;
99     }
100     return 1;
101 }
102 
103 /* Version number */
104 
105 static ssl_trace_tbl ssl_version_tbl[] = {
106     {SSL2_VERSION, "SSL 2.0"},
107     {SSL3_VERSION, "SSL 3.0"},
108     {TLS1_VERSION, "TLS 1.0"},
109     {TLS1_1_VERSION, "TLS 1.1"},
110     {TLS1_2_VERSION, "TLS 1.2"},
111     {DTLS1_VERSION, "DTLS 1.0"},
112     {DTLS1_2_VERSION, "DTLS 1.2"},
113     {DTLS1_BAD_VER, "DTLS 1.0 (bad)"}
114 };
115 
116 static ssl_trace_tbl ssl_content_tbl[] = {
117     {SSL3_RT_CHANGE_CIPHER_SPEC, "ChangeCipherSpec"},
118     {SSL3_RT_ALERT, "Alert"},
119     {SSL3_RT_HANDSHAKE, "Handshake"},
120     {SSL3_RT_APPLICATION_DATA, "ApplicationData"},
121     {TLS1_RT_HEARTBEAT, "HeartBeat"}
122 };
123 
124 /* Handshake types */
125 static ssl_trace_tbl ssl_handshake_tbl[] = {
126     {SSL3_MT_HELLO_REQUEST, "HelloRequest"},
127     {SSL3_MT_CLIENT_HELLO, "ClientHello"},
128     {SSL3_MT_SERVER_HELLO, "ServerHello"},
129     {DTLS1_MT_HELLO_VERIFY_REQUEST, "HelloVerifyRequest"},
130     {SSL3_MT_NEWSESSION_TICKET, "NewSessionTicket"},
131     {SSL3_MT_CERTIFICATE, "Certificate"},
132     {SSL3_MT_SERVER_KEY_EXCHANGE, "ServerKeyExchange"},
133     {SSL3_MT_CERTIFICATE_REQUEST, "CertificateRequest"},
134     {SSL3_MT_CLIENT_KEY_EXCHANGE, "ClientKeyExchange"},
135     {SSL3_MT_CERTIFICATE_STATUS, "CertificateStatus"},
136     {SSL3_MT_SERVER_DONE, "ServerHelloDone"},
137     {SSL3_MT_CERTIFICATE_VERIFY, "CertificateVerify"},
138     {SSL3_MT_CLIENT_KEY_EXCHANGE, "ClientKeyExchange"},
139     {SSL3_MT_FINISHED, "Finished"},
140     {SSL3_MT_CERTIFICATE_STATUS, "CertificateStatus"}
141 };
142 
143 /* Cipher suites */
144 static ssl_trace_tbl ssl_ciphers_tbl[] = {
145     {0x0000, "SSL_NULL_WITH_NULL_NULL"},
146     {0x0001, "SSL_RSA_WITH_NULL_MD5"},
147     {0x0002, "SSL_RSA_WITH_NULL_SHA"},
148     {0x0003, "SSL_RSA_EXPORT_WITH_RC4_40_MD5"},
149     {0x0004, "SSL_RSA_WITH_RC4_128_MD5"},
150     {0x0005, "SSL_RSA_WITH_RC4_128_SHA"},
151     {0x0006, "SSL_RSA_EXPORT_WITH_RC2_CBC_40_MD5"},
152     {0x0007, "SSL_RSA_WITH_IDEA_CBC_SHA"},
153     {0x0008, "SSL_RSA_EXPORT_WITH_DES40_CBC_SHA"},
154     {0x0009, "SSL_RSA_WITH_DES_CBC_SHA"},
155     {0x000A, "SSL_RSA_WITH_3DES_EDE_CBC_SHA"},
156     {0x000B, "SSL_DH_DSS_EXPORT_WITH_DES40_CBC_SHA"},
157     {0x000C, "SSL_DH_DSS_WITH_DES_CBC_SHA"},
158     {0x000D, "SSL_DH_DSS_WITH_3DES_EDE_CBC_SHA"},
159     {0x000E, "SSL_DH_RSA_EXPORT_WITH_DES40_CBC_SHA"},
160     {0x000F, "SSL_DH_RSA_WITH_DES_CBC_SHA"},
161     {0x0010, "SSL_DH_RSA_WITH_3DES_EDE_CBC_SHA"},
162     {0x0011, "SSL_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA"},
163     {0x0012, "SSL_DHE_DSS_WITH_DES_CBC_SHA"},
164     {0x0013, "SSL_DHE_DSS_WITH_3DES_EDE_CBC_SHA"},
165     {0x0014, "SSL_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA"},
166     {0x0015, "SSL_DHE_RSA_WITH_DES_CBC_SHA"},
167     {0x0016, "SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA"},
168     {0x0017, "SSL_DH_anon_EXPORT_WITH_RC4_40_MD5"},
169     {0x0018, "SSL_DH_anon_WITH_RC4_128_MD5"},
170     {0x0019, "SSL_DH_anon_EXPORT_WITH_DES40_CBC_SHA"},
171     {0x001A, "SSL_DH_anon_WITH_DES_CBC_SHA"},
172     {0x001B, "SSL_DH_anon_WITH_3DES_EDE_CBC_SHA"},
173     {0x001D, "SSL_FORTEZZA_KEA_WITH_FORTEZZA_CBC_SHA"},
174     {0x001E, "SSL_FORTEZZA_KEA_WITH_RC4_128_SHA"},
175     {0x001F, "TLS_KRB5_WITH_3DES_EDE_CBC_SHA"},
176     {0x0020, "TLS_KRB5_WITH_RC4_128_SHA"},
177     {0x0021, "TLS_KRB5_WITH_IDEA_CBC_SHA"},
178     {0x0022, "TLS_KRB5_WITH_DES_CBC_MD5"},
179     {0x0023, "TLS_KRB5_WITH_3DES_EDE_CBC_MD5"},
180     {0x0024, "TLS_KRB5_WITH_RC4_128_MD5"},
181     {0x0025, "TLS_KRB5_WITH_IDEA_CBC_MD5"},
182     {0x0026, "TLS_KRB5_EXPORT_WITH_DES_CBC_40_SHA"},
183     {0x0027, "TLS_KRB5_EXPORT_WITH_RC2_CBC_40_SHA"},
184     {0x0028, "TLS_KRB5_EXPORT_WITH_RC4_40_SHA"},
185     {0x0029, "TLS_KRB5_EXPORT_WITH_DES_CBC_40_MD5"},
186     {0x002A, "TLS_KRB5_EXPORT_WITH_RC2_CBC_40_MD5"},
187     {0x002B, "TLS_KRB5_EXPORT_WITH_RC4_40_MD5"},
188     {0x002F, "TLS_RSA_WITH_AES_128_CBC_SHA"},
189     {0x0030, "TLS_DH_DSS_WITH_AES_128_CBC_SHA"},
190     {0x0031, "TLS_DH_RSA_WITH_AES_128_CBC_SHA"},
191     {0x0032, "TLS_DHE_DSS_WITH_AES_128_CBC_SHA"},
192     {0x0033, "TLS_DHE_RSA_WITH_AES_128_CBC_SHA"},
193     {0x0034, "TLS_DH_anon_WITH_AES_128_CBC_SHA"},
194     {0x0035, "TLS_RSA_WITH_AES_256_CBC_SHA"},
195     {0x0036, "TLS_DH_DSS_WITH_AES_256_CBC_SHA"},
196     {0x0037, "TLS_DH_RSA_WITH_AES_256_CBC_SHA"},
197     {0x0038, "TLS_DHE_DSS_WITH_AES_256_CBC_SHA"},
198     {0x0039, "TLS_DHE_RSA_WITH_AES_256_CBC_SHA"},
199     {0x003A, "TLS_DH_anon_WITH_AES_256_CBC_SHA"},
200     {0x003B, "TLS_RSA_WITH_NULL_SHA256"},
201     {0x003C, "TLS_RSA_WITH_AES_128_CBC_SHA256"},
202     {0x003D, "TLS_RSA_WITH_AES_256_CBC_SHA256"},
203     {0x003E, "TLS_DH_DSS_WITH_AES_128_CBC_SHA256"},
204     {0x003F, "TLS_DH_RSA_WITH_AES_128_CBC_SHA256"},
205     {0x0040, "TLS_DHE_DSS_WITH_AES_128_CBC_SHA256"},
206     {0x0041, "TLS_RSA_WITH_CAMELLIA_128_CBC_SHA"},
207     {0x0042, "TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA"},
208     {0x0043, "TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA"},
209     {0x0044, "TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA"},
210     {0x0045, "TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA"},
211     {0x0046, "TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA"},
212     {0x0067, "TLS_DHE_RSA_WITH_AES_128_CBC_SHA256"},
213     {0x0068, "TLS_DH_DSS_WITH_AES_256_CBC_SHA256"},
214     {0x0069, "TLS_DH_RSA_WITH_AES_256_CBC_SHA256"},
215     {0x006A, "TLS_DHE_DSS_WITH_AES_256_CBC_SHA256"},
216     {0x006B, "TLS_DHE_RSA_WITH_AES_256_CBC_SHA256"},
217     {0x006C, "TLS_DH_anon_WITH_AES_128_CBC_SHA256"},
218     {0x006D, "TLS_DH_anon_WITH_AES_256_CBC_SHA256"},
219     {0x0084, "TLS_RSA_WITH_CAMELLIA_256_CBC_SHA"},
220     {0x0085, "TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA"},
221     {0x0086, "TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA"},
222     {0x0087, "TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA"},
223     {0x0088, "TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA"},
224     {0x0089, "TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA"},
225     {0x008A, "TLS_PSK_WITH_RC4_128_SHA"},
226     {0x008B, "TLS_PSK_WITH_3DES_EDE_CBC_SHA"},
227     {0x008C, "TLS_PSK_WITH_AES_128_CBC_SHA"},
228     {0x008D, "TLS_PSK_WITH_AES_256_CBC_SHA"},
229     {0x008E, "TLS_DHE_PSK_WITH_RC4_128_SHA"},
230     {0x008F, "TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA"},
231     {0x0090, "TLS_DHE_PSK_WITH_AES_128_CBC_SHA"},
232     {0x0091, "TLS_DHE_PSK_WITH_AES_256_CBC_SHA"},
233     {0x0092, "TLS_RSA_PSK_WITH_RC4_128_SHA"},
234     {0x0093, "TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA"},
235     {0x0094, "TLS_RSA_PSK_WITH_AES_128_CBC_SHA"},
236     {0x0095, "TLS_RSA_PSK_WITH_AES_256_CBC_SHA"},
237     {0x0096, "TLS_RSA_WITH_SEED_CBC_SHA"},
238     {0x0097, "TLS_DH_DSS_WITH_SEED_CBC_SHA"},
239     {0x0098, "TLS_DH_RSA_WITH_SEED_CBC_SHA"},
240     {0x0099, "TLS_DHE_DSS_WITH_SEED_CBC_SHA"},
241     {0x009A, "TLS_DHE_RSA_WITH_SEED_CBC_SHA"},
242     {0x009B, "TLS_DH_anon_WITH_SEED_CBC_SHA"},
243     {0x009C, "TLS_RSA_WITH_AES_128_GCM_SHA256"},
244     {0x009D, "TLS_RSA_WITH_AES_256_GCM_SHA384"},
245     {0x009E, "TLS_DHE_RSA_WITH_AES_128_GCM_SHA256"},
246     {0x009F, "TLS_DHE_RSA_WITH_AES_256_GCM_SHA384"},
247     {0x00A0, "TLS_DH_RSA_WITH_AES_128_GCM_SHA256"},
248     {0x00A1, "TLS_DH_RSA_WITH_AES_256_GCM_SHA384"},
249     {0x00A2, "TLS_DHE_DSS_WITH_AES_128_GCM_SHA256"},
250     {0x00A3, "TLS_DHE_DSS_WITH_AES_256_GCM_SHA384"},
251     {0x00A4, "TLS_DH_DSS_WITH_AES_128_GCM_SHA256"},
252     {0x00A5, "TLS_DH_DSS_WITH_AES_256_GCM_SHA384"},
253     {0x00A6, "TLS_DH_anon_WITH_AES_128_GCM_SHA256"},
254     {0x00A7, "TLS_DH_anon_WITH_AES_256_GCM_SHA384"},
255     {0x00A8, "TLS_PSK_WITH_AES_128_GCM_SHA256"},
256     {0x00A9, "TLS_PSK_WITH_AES_256_GCM_SHA384"},
257     {0x00AA, "TLS_DHE_PSK_WITH_AES_128_GCM_SHA256"},
258     {0x00AB, "TLS_DHE_PSK_WITH_AES_256_GCM_SHA384"},
259     {0x00AC, "TLS_RSA_PSK_WITH_AES_128_GCM_SHA256"},
260     {0x00AD, "TLS_RSA_PSK_WITH_AES_256_GCM_SHA384"},
261     {0x00AE, "TLS_PSK_WITH_AES_128_CBC_SHA256"},
262     {0x00AF, "TLS_PSK_WITH_AES_256_CBC_SHA384"},
263     {0x00B0, "TLS_PSK_WITH_NULL_SHA256"},
264     {0x00B1, "TLS_PSK_WITH_NULL_SHA384"},
265     {0x00B2, "TLS_DHE_PSK_WITH_AES_128_CBC_SHA256"},
266     {0x00B3, "TLS_DHE_PSK_WITH_AES_256_CBC_SHA384"},
267     {0x00B4, "TLS_DHE_PSK_WITH_NULL_SHA256"},
268     {0x00B5, "TLS_DHE_PSK_WITH_NULL_SHA384"},
269     {0x00B6, "TLS_RSA_PSK_WITH_AES_128_CBC_SHA256"},
270     {0x00B7, "TLS_RSA_PSK_WITH_AES_256_CBC_SHA384"},
271     {0x00B8, "TLS_RSA_PSK_WITH_NULL_SHA256"},
272     {0x00B9, "TLS_RSA_PSK_WITH_NULL_SHA384"},
273     {0x00BA, "TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256"},
274     {0x00BB, "TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA256"},
275     {0x00BC, "TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA256"},
276     {0x00BD, "TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA256"},
277     {0x00BE, "TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256"},
278     {0x00BF, "TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA256"},
279     {0x00C0, "TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256"},
280     {0x00C1, "TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA256"},
281     {0x00C2, "TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA256"},
282     {0x00C3, "TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA256"},
283     {0x00C4, "TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256"},
284     {0x00C5, "TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA256"},
285     {0x00FF, "TLS_EMPTY_RENEGOTIATION_INFO_SCSV"},
286     {0xC001, "TLS_ECDH_ECDSA_WITH_NULL_SHA"},
287     {0xC002, "TLS_ECDH_ECDSA_WITH_RC4_128_SHA"},
288     {0xC003, "TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA"},
289     {0xC004, "TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA"},
290     {0xC005, "TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA"},
291     {0xC006, "TLS_ECDHE_ECDSA_WITH_NULL_SHA"},
292     {0xC007, "TLS_ECDHE_ECDSA_WITH_RC4_128_SHA"},
293     {0xC008, "TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA"},
294     {0xC009, "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA"},
295     {0xC00A, "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA"},
296     {0xC00B, "TLS_ECDH_RSA_WITH_NULL_SHA"},
297     {0xC00C, "TLS_ECDH_RSA_WITH_RC4_128_SHA"},
298     {0xC00D, "TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA"},
299     {0xC00E, "TLS_ECDH_RSA_WITH_AES_128_CBC_SHA"},
300     {0xC00F, "TLS_ECDH_RSA_WITH_AES_256_CBC_SHA"},
301     {0xC010, "TLS_ECDHE_RSA_WITH_NULL_SHA"},
302     {0xC011, "TLS_ECDHE_RSA_WITH_RC4_128_SHA"},
303     {0xC012, "TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA"},
304     {0xC013, "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA"},
305     {0xC014, "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA"},
306     {0xC015, "TLS_ECDH_anon_WITH_NULL_SHA"},
307     {0xC016, "TLS_ECDH_anon_WITH_RC4_128_SHA"},
308     {0xC017, "TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA"},
309     {0xC018, "TLS_ECDH_anon_WITH_AES_128_CBC_SHA"},
310     {0xC019, "TLS_ECDH_anon_WITH_AES_256_CBC_SHA"},
311     {0xC01A, "TLS_SRP_SHA_WITH_3DES_EDE_CBC_SHA"},
312     {0xC01B, "TLS_SRP_SHA_RSA_WITH_3DES_EDE_CBC_SHA"},
313     {0xC01C, "TLS_SRP_SHA_DSS_WITH_3DES_EDE_CBC_SHA"},
314     {0xC01D, "TLS_SRP_SHA_WITH_AES_128_CBC_SHA"},
315     {0xC01E, "TLS_SRP_SHA_RSA_WITH_AES_128_CBC_SHA"},
316     {0xC01F, "TLS_SRP_SHA_DSS_WITH_AES_128_CBC_SHA"},
317     {0xC020, "TLS_SRP_SHA_WITH_AES_256_CBC_SHA"},
318     {0xC021, "TLS_SRP_SHA_RSA_WITH_AES_256_CBC_SHA"},
319     {0xC022, "TLS_SRP_SHA_DSS_WITH_AES_256_CBC_SHA"},
320     {0xC023, "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256"},
321     {0xC024, "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384"},
322     {0xC025, "TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256"},
323     {0xC026, "TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384"},
324     {0xC027, "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256"},
325     {0xC028, "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384"},
326     {0xC029, "TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256"},
327     {0xC02A, "TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384"},
328     {0xC02B, "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256"},
329     {0xC02C, "TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384"},
330     {0xC02D, "TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256"},
331     {0xC02E, "TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384"},
332     {0xC02F, "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256"},
333     {0xC030, "TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384"},
334     {0xC031, "TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256"},
335     {0xC032, "TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384"},
336     {0xFEFE, "SSL_RSA_FIPS_WITH_DES_CBC_SHA"},
337     {0xFEFF, "SSL_RSA_FIPS_WITH_3DES_EDE_CBC_SHA"},
338 };
339 
340 /* Compression methods */
341 static ssl_trace_tbl ssl_comp_tbl[] = {
342     {0x0000, "No Compression"},
343     {0x0001, "Zlib Compression"}
344 };
345 
346 /* Extensions */
347 static ssl_trace_tbl ssl_exts_tbl[] = {
348     {TLSEXT_TYPE_server_name, "server_name"},
349     {TLSEXT_TYPE_max_fragment_length, "max_fragment_length"},
350     {TLSEXT_TYPE_client_certificate_url, "client_certificate_url"},
351     {TLSEXT_TYPE_trusted_ca_keys, "trusted_ca_keys"},
352     {TLSEXT_TYPE_truncated_hmac, "truncated_hmac"},
353     {TLSEXT_TYPE_status_request, "status_request"},
354     {TLSEXT_TYPE_user_mapping, "user_mapping"},
355     {TLSEXT_TYPE_client_authz, "client_authz"},
356     {TLSEXT_TYPE_server_authz, "server_authz"},
357     {TLSEXT_TYPE_cert_type, "cert_type"},
358     {TLSEXT_TYPE_elliptic_curves, "elliptic_curves"},
359     {TLSEXT_TYPE_ec_point_formats, "ec_point_formats"},
360     {TLSEXT_TYPE_srp, "srp"},
361     {TLSEXT_TYPE_signature_algorithms, "signature_algorithms"},
362     {TLSEXT_TYPE_use_srtp, "use_srtp"},
363     {TLSEXT_TYPE_heartbeat, "heartbeat"},
364     {TLSEXT_TYPE_session_ticket, "session_ticket"},
365 # ifdef TLSEXT_TYPE_opaque_prf_input
366     {TLSEXT_TYPE_opaque_prf_input, "opaque_prf_input"},
367 # endif
368     {TLSEXT_TYPE_renegotiate, "renegotiate"},
369     {TLSEXT_TYPE_next_proto_neg, "next_proto_neg"},
370     {TLSEXT_TYPE_padding, "padding"}
371 };
372 
373 static ssl_trace_tbl ssl_curve_tbl[] = {
374     {1, "sect163k1 (K-163)"},
375     {2, "sect163r1"},
376     {3, "sect163r2 (B-163)"},
377     {4, "sect193r1"},
378     {5, "sect193r2"},
379     {6, "sect233k1 (K-233)"},
380     {7, "sect233r1 (B-233)"},
381     {8, "sect239k1"},
382     {9, "sect283k1 (K-283)"},
383     {10, "sect283r1 (B-283)"},
384     {11, "sect409k1 (K-409)"},
385     {12, "sect409r1 (B-409)"},
386     {13, "sect571k1 (K-571)"},
387     {14, "sect571r1 (B-571)"},
388     {15, "secp160k1"},
389     {16, "secp160r1"},
390     {17, "secp160r2"},
391     {18, "secp192k1"},
392     {19, "secp192r1 (P-192)"},
393     {20, "secp224k1"},
394     {21, "secp224r1 (P-224)"},
395     {22, "secp256k1"},
396     {23, "secp256r1 (P-256)"},
397     {24, "secp384r1 (P-384)"},
398     {25, "secp521r1 (P-521)"},
399     {26, "brainpoolP256r1"},
400     {27, "brainpoolP384r1"},
401     {28, "brainpoolP512r1"},
402     {0xFF01, "arbitrary_explicit_prime_curves"},
403     {0xFF02, "arbitrary_explicit_char2_curves"}
404 };
405 
406 static ssl_trace_tbl ssl_point_tbl[] = {
407     {0, "uncompressed"},
408     {1, "ansiX962_compressed_prime"},
409     {2, "ansiX962_compressed_char2"}
410 };
411 
412 static ssl_trace_tbl ssl_md_tbl[] = {
413     {0, "none"},
414     {1, "md5"},
415     {2, "sha1"},
416     {3, "sha224"},
417     {4, "sha256"},
418     {5, "sha384"},
419     {6, "sha512"}
420 };
421 
422 static ssl_trace_tbl ssl_sig_tbl[] = {
423     {0, "anonymous"},
424     {1, "rsa"},
425     {2, "dsa"},
426     {3, "ecdsa"}
427 };
428 
429 static ssl_trace_tbl ssl_hb_tbl[] = {
430     {1, "peer_allowed_to_send"},
431     {2, "peer_not_allowed_to_send"}
432 };
433 
434 static ssl_trace_tbl ssl_hb_type_tbl[] = {
435     {1, "heartbeat_request"},
436     {2, "heartbeat_response"}
437 };
438 
439 static ssl_trace_tbl ssl_ctype_tbl[] = {
440     {1, "rsa_sign"},
441     {2, "dss_sign"},
442     {3, "rsa_fixed_dh"},
443     {4, "dss_fixed_dh"},
444     {5, "rsa_ephemeral_dh"},
445     {6, "dss_ephemeral_dh"},
446     {20, "fortezza_dms"},
447     {64, "ecdsa_sign"},
448     {65, "rsa_fixed_ecdh"},
449     {66, "ecdsa_fixed_ecdh"}
450 };
451 
452 static ssl_trace_tbl ssl_crypto_tbl[] = {
453     {TLS1_RT_CRYPTO_PREMASTER, "Premaster Secret"},
454     {TLS1_RT_CRYPTO_CLIENT_RANDOM, "Client Random"},
455     {TLS1_RT_CRYPTO_SERVER_RANDOM, "Server Random"},
456     {TLS1_RT_CRYPTO_MASTER, "Master Secret"},
457     {TLS1_RT_CRYPTO_MAC | TLS1_RT_CRYPTO_WRITE, "Write Mac Secret"},
458     {TLS1_RT_CRYPTO_MAC | TLS1_RT_CRYPTO_READ, "Read Mac Secret"},
459     {TLS1_RT_CRYPTO_KEY | TLS1_RT_CRYPTO_WRITE, "Write Key"},
460     {TLS1_RT_CRYPTO_KEY | TLS1_RT_CRYPTO_READ, "Read Key"},
461     {TLS1_RT_CRYPTO_IV | TLS1_RT_CRYPTO_WRITE, "Write IV"},
462     {TLS1_RT_CRYPTO_IV | TLS1_RT_CRYPTO_READ, "Read IV"},
463     {TLS1_RT_CRYPTO_FIXED_IV | TLS1_RT_CRYPTO_WRITE, "Write IV (fixed part)"},
464     {TLS1_RT_CRYPTO_FIXED_IV | TLS1_RT_CRYPTO_READ, "Read IV (fixed part)"}
465 };
466 
467 static void ssl_print_hex(BIO *bio, int indent, const char *name,
468                           const unsigned char *msg, size_t msglen)
469 {
470     size_t i;
471     BIO_indent(bio, indent, 80);
472     BIO_printf(bio, "%s (len=%d): ", name, (int)msglen);
473     for (i = 0; i < msglen; i++)
474         BIO_printf(bio, "%02X", msg[i]);
475     BIO_puts(bio, "\n");
476 }
477 
478 static int ssl_print_hexbuf(BIO *bio, int indent,
479                             const char *name, size_t nlen,
480                             const unsigned char **pmsg, size_t *pmsglen)
481 {
482     size_t blen;
483     const unsigned char *p = *pmsg;
484     if (*pmsglen < nlen)
485         return 0;
486     blen = p[0];
487     if (nlen > 1)
488         blen = (blen << 8) | p[1];
489     if (*pmsglen < nlen + blen)
490         return 0;
491     p += nlen;
492     ssl_print_hex(bio, indent, name, p, blen);
493     *pmsg += blen + nlen;
494     *pmsglen -= blen + nlen;
495     return 1;
496 }
497 
498 static int ssl_print_version(BIO *bio, int indent, const char *name,
499                              const unsigned char **pmsg, size_t *pmsglen)
500 {
501     int vers;
502     if (*pmsglen < 2)
503         return 0;
504     vers = ((*pmsg)[0] << 8) | (*pmsg)[1];
505     BIO_indent(bio, indent, 80);
506     BIO_printf(bio, "%s=0x%x (%s)\n",
507                name, vers, ssl_trace_str(vers, ssl_version_tbl));
508     *pmsg += 2;
509     *pmsglen -= 2;
510     return 1;
511 }
512 
513 static int ssl_print_random(BIO *bio, int indent,
514                             const unsigned char **pmsg, size_t *pmsglen)
515 {
516     unsigned int tm;
517     const unsigned char *p = *pmsg;
518     if (*pmsglen < 32)
519         return 0;
520     tm = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3];
521     p += 4;
522     BIO_indent(bio, indent, 80);
523     BIO_puts(bio, "Random:\n");
524     BIO_indent(bio, indent + 2, 80);
525     BIO_printf(bio, "gmt_unix_time=0x%08X\n", tm);
526     ssl_print_hex(bio, indent + 2, "random_bytes", p, 28);
527     *pmsg += 32;
528     *pmsglen -= 32;
529     return 1;
530 }
531 
532 static int ssl_print_signature(BIO *bio, int indent, SSL *s,
533                                const unsigned char **pmsg, size_t *pmsglen)
534 {
535     if (*pmsglen < 2)
536         return 0;
537     if (SSL_USE_SIGALGS(s)) {
538         const unsigned char *p = *pmsg;
539         BIO_indent(bio, indent, 80);
540         BIO_printf(bio, "Signature Algorithm %s+%s (%d+%d)\n",
541                    ssl_trace_str(p[0], ssl_md_tbl),
542                    ssl_trace_str(p[1], ssl_sig_tbl), p[0], p[1]);
543         *pmsg += 2;
544         *pmsglen -= 2;
545     }
546     return ssl_print_hexbuf(bio, indent, "Signature", 2, pmsg, pmsglen);
547 }
548 
549 static int ssl_print_extension(BIO *bio, int indent, int server, int extype,
550                                const unsigned char *ext, size_t extlen)
551 {
552     size_t xlen;
553     BIO_indent(bio, indent, 80);
554     BIO_printf(bio, "extension_type=%s(%d), length=%d\n",
555                ssl_trace_str(extype, ssl_exts_tbl), extype, (int)extlen);
556     switch (extype) {
557     case TLSEXT_TYPE_ec_point_formats:
558         if (extlen < 1)
559             return 0;
560         xlen = ext[0];
561         if (extlen != xlen + 1)
562             return 0;
563         return ssl_trace_list(bio, indent + 2,
564                               ext + 1, xlen, 1, ssl_point_tbl);
565 
566     case TLSEXT_TYPE_elliptic_curves:
567         if (extlen < 2)
568             return 0;
569         xlen = (ext[0] << 8) | ext[1];
570         if (extlen != xlen + 2)
571             return 0;
572         return ssl_trace_list(bio, indent + 2,
573                               ext + 2, xlen, 2, ssl_curve_tbl);
574 
575     case TLSEXT_TYPE_signature_algorithms:
576 
577         if (extlen < 2)
578             return 0;
579         xlen = (ext[0] << 8) | ext[1];
580         if (extlen != xlen + 2)
581             return 0;
582         if (xlen & 1)
583             return 0;
584         ext += 2;
585         while (xlen > 0) {
586             BIO_indent(bio, indent + 2, 80);
587             BIO_printf(bio, "%s+%s (%d+%d)\n",
588                        ssl_trace_str(ext[0], ssl_md_tbl),
589                        ssl_trace_str(ext[1], ssl_sig_tbl), ext[0], ext[1]);
590             xlen -= 2;
591             ext += 2;
592         }
593         break;
594 
595     case TLSEXT_TYPE_renegotiate:
596         if (extlen < 1)
597             return 0;
598         xlen = ext[0];
599         if (xlen + 1 != extlen)
600             return 0;
601         ext++;
602         if (xlen) {
603             if (server) {
604                 if (xlen & 1)
605                     return 0;
606                 xlen >>= 1;
607             }
608             ssl_print_hex(bio, indent + 4, "client_verify_data", ext, xlen);
609             if (server) {
610                 ext += xlen;
611                 ssl_print_hex(bio, indent + 4,
612                               "server_verify_data", ext, xlen);
613             }
614         } else {
615             BIO_indent(bio, indent + 4, 80);
616             BIO_puts(bio, "<EMPTY>\n");
617         }
618         break;
619 
620     case TLSEXT_TYPE_heartbeat:
621         if (extlen != 1)
622             return 0;
623         BIO_indent(bio, indent + 2, 80);
624         BIO_printf(bio, "HeartbeatMode: %s\n",
625                    ssl_trace_str(ext[0], ssl_hb_tbl));
626         break;
627 
628     case TLSEXT_TYPE_session_ticket:
629         if (extlen != 0)
630             ssl_print_hex(bio, indent + 4, "ticket", ext, extlen);
631         break;
632 
633     default:
634         BIO_dump_indent(bio, (char *)ext, extlen, indent + 2);
635     }
636     return 1;
637 }
638 
639 static int ssl_print_extensions(BIO *bio, int indent, int server,
640                                 const unsigned char *msg, size_t msglen)
641 {
642     size_t extslen;
643     BIO_indent(bio, indent, 80);
644     if (msglen == 0) {
645         BIO_puts(bio, "No Extensions\n");
646         return 1;
647     }
648     extslen = (msg[0] << 8) | msg[1];
649     if (extslen != msglen - 2)
650         return 0;
651     msg += 2;
652     msglen = extslen;
653     BIO_printf(bio, "extensions, length = %d\n", (int)msglen);
654     while (msglen > 0) {
655         int extype;
656         size_t extlen;
657         if (msglen < 4)
658             return 0;
659         extype = (msg[0] << 8) | msg[1];
660         extlen = (msg[2] << 8) | msg[3];
661         if (msglen < extlen + 4)
662             return 0;
663         msg += 4;
664         if (!ssl_print_extension(bio, indent + 2, server,
665                                  extype, msg, extlen))
666             return 0;
667         msg += extlen;
668         msglen -= extlen + 4;
669     }
670     return 1;
671 }
672 
673 static int ssl_print_client_hello(BIO *bio, SSL *ssl, int indent,
674                                   const unsigned char *msg, size_t msglen)
675 {
676     size_t len;
677     unsigned int cs;
678     if (!ssl_print_version(bio, indent, "client_version", &msg, &msglen))
679         return 0;
680     if (!ssl_print_random(bio, indent, &msg, &msglen))
681         return 0;
682     if (!ssl_print_hexbuf(bio, indent, "session_id", 1, &msg, &msglen))
683         return 0;
684     if (SSL_IS_DTLS(ssl)) {
685         if (!ssl_print_hexbuf(bio, indent, "cookie", 1, &msg, &msglen))
686             return 0;
687     }
688     if (msglen < 2)
689         return 0;
690     len = (msg[0] << 8) | msg[1];
691     msg += 2;
692     msglen -= 2;
693     BIO_indent(bio, indent, 80);
694     BIO_printf(bio, "cipher_suites (len=%d)\n", (int)len);
695     if (msglen < len || len & 1)
696         return 0;
697     while (len > 0) {
698         cs = (msg[0] << 8) | msg[1];
699         BIO_indent(bio, indent + 2, 80);
700         BIO_printf(bio, "{0x%02X, 0x%02X} %s\n",
701                    msg[0], msg[1], ssl_trace_str(cs, ssl_ciphers_tbl));
702         msg += 2;
703         msglen -= 2;
704         len -= 2;
705     }
706     if (msglen < 1)
707         return 0;
708     len = msg[0];
709     msg++;
710     msglen--;
711     if (msglen < len)
712         return 0;
713     BIO_indent(bio, indent, 80);
714     BIO_printf(bio, "compression_methods (len=%d)\n", (int)len);
715     while (len > 0) {
716         BIO_indent(bio, indent + 2, 80);
717         BIO_printf(bio, "%s (0x%02X)\n",
718                    ssl_trace_str(msg[0], ssl_comp_tbl), msg[0]);
719         msg++;
720         msglen--;
721         len--;
722     }
723     if (!ssl_print_extensions(bio, indent, 0, msg, msglen))
724         return 0;
725     return 1;
726 }
727 
728 static int dtls_print_hello_vfyrequest(BIO *bio, int indent,
729                                        const unsigned char *msg,
730                                        size_t msglen)
731 {
732     if (!ssl_print_version(bio, indent, "server_version", &msg, &msglen))
733         return 0;
734     if (!ssl_print_hexbuf(bio, indent, "cookie", 1, &msg, &msglen))
735         return 0;
736     return 1;
737 }
738 
739 static int ssl_print_server_hello(BIO *bio, int indent,
740                                   const unsigned char *msg, size_t msglen)
741 {
742     unsigned int cs;
743     if (!ssl_print_version(bio, indent, "server_version", &msg, &msglen))
744         return 0;
745     if (!ssl_print_random(bio, indent, &msg, &msglen))
746         return 0;
747     if (!ssl_print_hexbuf(bio, indent, "session_id", 1, &msg, &msglen))
748         return 0;
749     if (msglen < 2)
750         return 0;
751     cs = (msg[0] << 8) | msg[1];
752     BIO_indent(bio, indent, 80);
753     BIO_printf(bio, "cipher_suite {0x%02X, 0x%02X} %s\n",
754                msg[0], msg[1], ssl_trace_str(cs, ssl_ciphers_tbl));
755     msg += 2;
756     msglen -= 2;
757     if (msglen < 1)
758         return 0;
759     BIO_indent(bio, indent, 80);
760     BIO_printf(bio, "compression_method: %s (0x%02X)\n",
761                ssl_trace_str(msg[0], ssl_comp_tbl), msg[0]);
762     msg++;
763     msglen--;
764     if (!ssl_print_extensions(bio, indent, 1, msg, msglen))
765         return 0;
766     return 1;
767 }
768 
769 static int ssl_get_keyex(const char **pname, SSL *ssl)
770 {
771     unsigned long alg_k = ssl->s3->tmp.new_cipher->algorithm_mkey;
772     if (alg_k & SSL_kRSA) {
773         *pname = "rsa";
774         return SSL_kRSA;
775     }
776     if (alg_k & SSL_kDHr) {
777         *pname = "dh_rsa";
778         return SSL_kDHr;
779     }
780     if (alg_k & SSL_kDHd) {
781         *pname = "dh_dss";
782         return SSL_kDHd;
783     }
784     if (alg_k & SSL_kKRB5) {
785         *pname = "krb5";
786         return SSL_kKRB5;
787     }
788     if (alg_k & SSL_kEDH) {
789         *pname = "edh";
790         return SSL_kEDH;
791     }
792     if (alg_k & SSL_kEECDH) {
793         *pname = "EECDH";
794         return SSL_kEECDH;
795     }
796     if (alg_k & SSL_kECDHr) {
797         *pname = "ECDH RSA";
798         return SSL_kECDHr;
799     }
800     if (alg_k & SSL_kECDHe) {
801         *pname = "ECDH ECDSA";
802         return SSL_kECDHe;
803     }
804     if (alg_k & SSL_kPSK) {
805         *pname = "PSK";
806         return SSL_kPSK;
807     }
808     if (alg_k & SSL_kSRP) {
809         *pname = "SRP";
810         return SSL_kSRP;
811     }
812     if (alg_k & SSL_kGOST) {
813         *pname = "GOST";
814         return SSL_kGOST;
815     }
816     *pname = "UNKNOWN";
817     return 0;
818 }
819 
820 static int ssl_print_client_keyex(BIO *bio, int indent, SSL *ssl,
821                                   const unsigned char *msg, size_t msglen)
822 {
823     const char *algname;
824     int id;
825     id = ssl_get_keyex(&algname, ssl);
826     BIO_indent(bio, indent, 80);
827     BIO_printf(bio, "KeyExchangeAlgorithm=%s\n", algname);
828     switch (id) {
829 
830     case SSL_kRSA:
831         if (TLS1_get_version(ssl) == SSL3_VERSION) {
832             ssl_print_hex(bio, indent + 2,
833                           "EncyptedPreMasterSecret", msg, msglen);
834         } else {
835             if (!ssl_print_hexbuf(bio, indent + 2,
836                                   "EncyptedPreMasterSecret", 2,
837                                   &msg, &msglen))
838                 return 0;
839         }
840         break;
841 
842         /* Implicit parameters only allowed for static DH */
843     case SSL_kDHd:
844     case SSL_kDHr:
845         if (msglen == 0) {
846             BIO_indent(bio, indent + 2, 80);
847             BIO_puts(bio, "implicit\n");
848             break;
849         }
850     case SSL_kEDH:
851         if (!ssl_print_hexbuf(bio, indent + 2, "dh_Yc", 2, &msg, &msglen))
852             return 0;
853         break;
854 
855     case SSL_kECDHr:
856     case SSL_kECDHe:
857         if (msglen == 0) {
858             BIO_indent(bio, indent + 2, 80);
859             BIO_puts(bio, "implicit\n");
860             break;
861         }
862     case SSL_kEECDH:
863         if (!ssl_print_hexbuf(bio, indent + 2, "ecdh_Yc", 1, &msg, &msglen))
864             return 0;
865         break;
866     }
867 
868     return 1;
869 }
870 
871 static int ssl_print_server_keyex(BIO *bio, int indent, SSL *ssl,
872                                   const unsigned char *msg, size_t msglen)
873 {
874     const char *algname;
875     int id;
876     id = ssl_get_keyex(&algname, ssl);
877     BIO_indent(bio, indent, 80);
878     BIO_printf(bio, "KeyExchangeAlgorithm=%s\n", algname);
879     switch (id) {
880         /* Should never happen */
881     case SSL_kDHd:
882     case SSL_kDHr:
883     case SSL_kECDHr:
884     case SSL_kECDHe:
885         BIO_indent(bio, indent + 2, 80);
886         BIO_printf(bio, "Unexpected Message\n");
887         break;
888 
889     case SSL_kRSA:
890 
891         if (!ssl_print_hexbuf(bio, indent + 2, "rsa_modulus", 2,
892                               &msg, &msglen))
893             return 0;
894         if (!ssl_print_hexbuf(bio, indent + 2, "rsa_exponent", 2,
895                               &msg, &msglen))
896             return 0;
897         break;
898 
899     case SSL_kEDH:
900         if (!ssl_print_hexbuf(bio, indent + 2, "dh_p", 2, &msg, &msglen))
901             return 0;
902         if (!ssl_print_hexbuf(bio, indent + 2, "dh_g", 2, &msg, &msglen))
903             return 0;
904         if (!ssl_print_hexbuf(bio, indent + 2, "dh_Ys", 2, &msg, &msglen))
905             return 0;
906         break;
907 
908     case SSL_kEECDH:
909         if (msglen < 1)
910             return 0;
911         BIO_indent(bio, indent + 2, 80);
912         if (msg[0] == EXPLICIT_PRIME_CURVE_TYPE)
913             BIO_puts(bio, "explicit_prime\n");
914         else if (msg[0] == EXPLICIT_CHAR2_CURVE_TYPE)
915             BIO_puts(bio, "explicit_char2\n");
916         else if (msg[0] == NAMED_CURVE_TYPE) {
917             int curve;
918             if (msglen < 3)
919                 return 0;
920             curve = (msg[1] << 8) | msg[2];
921             BIO_printf(bio, "named_curve: %s (%d)\n",
922                        ssl_trace_str(curve, ssl_curve_tbl), curve);
923             msg += 3;
924             msglen -= 3;
925             if (!ssl_print_hexbuf(bio, indent + 2, "point", 1, &msg, &msglen))
926                 return 0;
927         }
928         break;
929     }
930     return ssl_print_signature(bio, indent, ssl, &msg, &msglen);
931 }
932 
933 static int ssl_print_certificate(BIO *bio, int indent,
934                                  const unsigned char **pmsg, size_t *pmsglen)
935 {
936     size_t msglen = *pmsglen;
937     size_t clen;
938     X509 *x;
939     const unsigned char *p = *pmsg, *q;
940     if (msglen < 3)
941         return 0;
942     clen = (p[0] << 16) | (p[1] << 8) | p[2];
943     if (msglen < clen + 3)
944         return 0;
945     q = p + 3;
946     BIO_indent(bio, indent, 80);
947     BIO_printf(bio, "ASN.1Cert, length=%d", (int)clen);
948     x = d2i_X509(NULL, &q, clen);
949     if (!x)
950         BIO_puts(bio, "<UNPARSEABLE CERTIFICATE>\n");
951     else {
952         BIO_puts(bio, "\n------details-----\n");
953         X509_print_ex(bio, x, XN_FLAG_ONELINE, 0);
954         PEM_write_bio_X509(bio, x);
955         /* Print certificate stuff */
956         BIO_puts(bio, "------------------\n");
957         X509_free(x);
958     }
959     if (q != p + 3 + clen) {
960         BIO_puts(bio, "<TRAILING GARBAGE AFTER CERTIFICATE>\n");
961     }
962     *pmsg += clen + 3;
963     *pmsglen -= clen + 3;
964     return 1;
965 }
966 
967 static int ssl_print_certificates(BIO *bio, int indent,
968                                   const unsigned char *msg, size_t msglen)
969 {
970     size_t clen;
971     if (msglen < 3)
972         return 0;
973     clen = (msg[0] << 16) | (msg[1] << 8) | msg[2];
974     if (msglen != clen + 3)
975         return 0;
976     msg += 3;
977     BIO_indent(bio, indent, 80);
978     BIO_printf(bio, "certificate_list, length=%d\n", (int)clen);
979     while (clen > 0) {
980         if (!ssl_print_certificate(bio, indent + 2, &msg, &clen))
981             return 0;
982     }
983     return 1;
984 }
985 
986 static int ssl_print_cert_request(BIO *bio, int indent, SSL *s,
987                                   const unsigned char *msg, size_t msglen)
988 {
989     size_t xlen;
990     if (msglen < 1)
991         return 0;
992     xlen = msg[0];
993     if (msglen < xlen + 1)
994         return 0;
995     msg++;
996     BIO_indent(bio, indent, 80);
997     BIO_printf(bio, "certificate_types (len=%d)\n", (int)xlen);
998     if (!ssl_trace_list(bio, indent + 2, msg, xlen, 1, ssl_ctype_tbl))
999         return 0;
1000     msg += xlen;
1001     msglen -= xlen + 1;
1002     if (!SSL_USE_SIGALGS(s))
1003         goto skip_sig;
1004     if (msglen < 2)
1005         return 0;
1006     xlen = (msg[0] << 8) | msg[1];
1007     if (msglen < xlen + 2 || (xlen & 1))
1008         return 0;
1009     msg += 2;
1010     BIO_indent(bio, indent, 80);
1011     BIO_printf(bio, "signature_algorithms (len=%d)\n", (int)xlen);
1012     while (xlen > 0) {
1013         BIO_indent(bio, indent + 2, 80);
1014         BIO_printf(bio, "%s+%s (%d+%d)\n",
1015                    ssl_trace_str(msg[0], ssl_md_tbl),
1016                    ssl_trace_str(msg[1], ssl_sig_tbl), msg[0], msg[1]);
1017         xlen -= 2;
1018         msg += 2;
1019     }
1020     msg += xlen;
1021     msglen -= xlen + 2;
1022 
1023  skip_sig:
1024     xlen = (msg[0] << 8) | msg[1];
1025     BIO_indent(bio, indent, 80);
1026     if (msglen < xlen + 2)
1027         return 0;
1028     msg += 2;
1029     msglen -= 2;
1030     BIO_printf(bio, "certificate_authorities (len=%d)\n", (int)xlen);
1031     while (xlen > 0) {
1032         size_t dlen;
1033         X509_NAME *nm;
1034         const unsigned char *p;
1035         if (xlen < 2)
1036             return 0;
1037         dlen = (msg[0] << 8) | msg[1];
1038         if (xlen < dlen + 2)
1039             return 0;
1040         msg += 2;
1041         BIO_indent(bio, indent + 2, 80);
1042         BIO_printf(bio, "DistinguishedName (len=%d): ", (int)dlen);
1043         p = msg;
1044         nm = d2i_X509_NAME(NULL, &p, dlen);
1045         if (!nm) {
1046             BIO_puts(bio, "<UNPARSEABLE DN>\n");
1047         } else {
1048             X509_NAME_print_ex(bio, nm, 0, XN_FLAG_ONELINE);
1049             BIO_puts(bio, "\n");
1050             X509_NAME_free(nm);
1051         }
1052         xlen -= dlen + 2;
1053         msg += dlen;
1054     }
1055     return 1;
1056 }
1057 
1058 static int ssl_print_ticket(BIO *bio, int indent,
1059                             const unsigned char *msg, size_t msglen)
1060 {
1061     unsigned int tick_life;
1062     if (msglen == 0) {
1063         BIO_indent(bio, indent + 2, 80);
1064         BIO_puts(bio, "No Ticket\n");
1065         return 1;
1066     }
1067     if (msglen < 4)
1068         return 0;
1069     tick_life = (msg[0] << 24) | (msg[1] << 16) | (msg[2] << 8) | msg[3];
1070     msglen -= 4;
1071     msg += 4;
1072     BIO_indent(bio, indent + 2, 80);
1073     BIO_printf(bio, "ticket_lifetime_hint=%u\n", tick_life);
1074     if (!ssl_print_hexbuf(bio, indent + 2, "ticket", 2, &msg, &msglen))
1075         return 0;
1076     if (msglen)
1077         return 0;
1078     return 1;
1079 }
1080 
1081 static int ssl_print_handshake(BIO *bio, SSL *ssl,
1082                                const unsigned char *msg, size_t msglen,
1083                                int indent)
1084 {
1085     size_t hlen;
1086     unsigned char htype;
1087     if (msglen < 4)
1088         return 0;
1089     htype = msg[0];
1090     hlen = (msg[1] << 16) | (msg[2] << 8) | msg[3];
1091     BIO_indent(bio, indent, 80);
1092     BIO_printf(bio, "%s, Length=%d\n",
1093                ssl_trace_str(htype, ssl_handshake_tbl), (int)hlen);
1094     msg += 4;
1095     msglen -= 4;
1096     if (SSL_IS_DTLS(ssl)) {
1097         if (msglen < 8)
1098             return 0;
1099         BIO_indent(bio, indent, 80);
1100         BIO_printf(bio, "message_seq=%d, fragment_offset=%d, "
1101                    "fragment_length=%d\n",
1102                    (msg[0] << 8) | msg[1],
1103                    (msg[2] << 16) | (msg[3] << 8) | msg[4],
1104                    (msg[5] << 16) | (msg[6] << 8) | msg[7]);
1105         msg += 8;
1106         msglen -= 8;
1107     }
1108     if (msglen < hlen)
1109         return 0;
1110     switch (htype) {
1111     case SSL3_MT_CLIENT_HELLO:
1112         if (!ssl_print_client_hello(bio, ssl, indent + 2, msg, msglen))
1113             return 0;
1114         break;
1115 
1116     case DTLS1_MT_HELLO_VERIFY_REQUEST:
1117         if (!dtls_print_hello_vfyrequest(bio, indent + 2, msg, msglen))
1118             return 0;
1119         break;
1120 
1121     case SSL3_MT_SERVER_HELLO:
1122         if (!ssl_print_server_hello(bio, indent + 2, msg, msglen))
1123             return 0;
1124         break;
1125 
1126     case SSL3_MT_SERVER_KEY_EXCHANGE:
1127         if (!ssl_print_server_keyex(bio, indent + 2, ssl, msg, msglen))
1128             return 0;
1129         break;
1130 
1131     case SSL3_MT_CLIENT_KEY_EXCHANGE:
1132         if (!ssl_print_client_keyex(bio, indent + 2, ssl, msg, msglen))
1133             return 0;
1134         break;
1135 
1136     case SSL3_MT_CERTIFICATE:
1137         if (!ssl_print_certificates(bio, indent + 2, msg, msglen))
1138             return 0;
1139         break;
1140 
1141     case SSL3_MT_CERTIFICATE_VERIFY:
1142         if (!ssl_print_signature(bio, indent + 2, ssl, &msg, &msglen))
1143             return 0;
1144         break;
1145 
1146     case SSL3_MT_CERTIFICATE_REQUEST:
1147         if (!ssl_print_cert_request(bio, indent + 2, ssl, msg, msglen))
1148             return 0;
1149         break;
1150 
1151     case SSL3_MT_FINISHED:
1152         ssl_print_hex(bio, indent + 2, "verify_data", msg, msglen);
1153         break;
1154 
1155     case SSL3_MT_SERVER_DONE:
1156         if (msglen != 0)
1157             ssl_print_hex(bio, indent + 2, "unexpected value", msg, msglen);
1158         break;
1159 
1160     case SSL3_MT_NEWSESSION_TICKET:
1161         if (!ssl_print_ticket(bio, indent + 2, msg, msglen))
1162             return 0;
1163         break;
1164 
1165     default:
1166         BIO_indent(bio, indent + 2, 80);
1167         BIO_puts(bio, "Unsupported, hex dump follows:\n");
1168         BIO_dump_indent(bio, (char *)msg, msglen, indent + 4);
1169     }
1170     return 1;
1171 }
1172 
1173 static int ssl_print_heartbeat(BIO *bio, int indent,
1174                                const unsigned char *msg, size_t msglen)
1175 {
1176     if (msglen < 3)
1177         return 0;
1178     BIO_indent(bio, indent, 80);
1179     BIO_printf(bio, "HeartBeatMessageType: %s\n",
1180                ssl_trace_str(msg[0], ssl_hb_type_tbl));
1181     msg++;
1182     msglen--;
1183     if (!ssl_print_hexbuf(bio, indent, "payload", 2, &msg, &msglen))
1184         return 0;
1185     ssl_print_hex(bio, indent, "padding", msg, msglen);
1186     return 1;
1187 }
1188 
1189 const char *SSL_CIPHER_standard_name(const SSL_CIPHER *c)
1190 {
1191     if (c->algorithm_ssl & SSL_SSLV2)
1192         return NULL;
1193     return ssl_trace_str(c->id & 0xFFFF, ssl_ciphers_tbl);
1194 }
1195 
1196 void SSL_trace(int write_p, int version, int content_type,
1197                const void *buf, size_t msglen, SSL *ssl, void *arg)
1198 {
1199     const unsigned char *msg = buf;
1200     BIO *bio = arg;
1201 
1202     if (write_p == 2) {
1203         BIO_puts(bio, "Session ");
1204         ssl_print_hex(bio, 0,
1205                       ssl_trace_str(content_type, ssl_crypto_tbl),
1206                       msg, msglen);
1207         return;
1208     }
1209     switch (content_type) {
1210     case SSL3_RT_HEADER:
1211         {
1212             int hvers = msg[1] << 8 | msg[2];
1213             BIO_puts(bio, write_p ? "Sent" : "Received");
1214             BIO_printf(bio, " Record\nHeader:\n  Version = %s (0x%x)\n",
1215                        ssl_trace_str(hvers, ssl_version_tbl), hvers);
1216             if (SSL_IS_DTLS(ssl)) {
1217                 BIO_printf(bio,
1218                            "  epoch=%d, sequence_number=%04x%04x%04x\n",
1219                            (msg[3] << 8 | msg[4]),
1220                            (msg[5] << 8 | msg[6]),
1221                            (msg[7] << 8 | msg[8]), (msg[9] << 8 | msg[10]));
1222 # if 0
1223                 /*
1224                  * Just print handshake type so we can see what is going on
1225                  * during fragmentation.
1226                  */
1227                 BIO_printf(bio, "(%s)\n",
1228                            ssl_trace_str(msg[msglen], ssl_handshake_tbl));
1229 # endif
1230             }
1231 
1232             BIO_printf(bio, "  Content Type = %s (%d)\n  Length = %d",
1233                        ssl_trace_str(msg[0], ssl_content_tbl), msg[0],
1234                        msg[msglen - 2] << 8 | msg[msglen - 1]);
1235         }
1236         break;
1237     case SSL3_RT_HANDSHAKE:
1238         if (!ssl_print_handshake(bio, ssl, msg, msglen, 4))
1239             BIO_printf(bio, "Message length parse error!\n");
1240         break;
1241 
1242     case SSL3_RT_CHANGE_CIPHER_SPEC:
1243         if (msglen == 1 && msg[0] == 1)
1244             BIO_puts(bio, "    change_cipher_spec (1)\n");
1245         else
1246             ssl_print_hex(bio, 4, "unknown value", msg, msglen);
1247         break;
1248 
1249     case SSL3_RT_ALERT:
1250         if (msglen != 2)
1251             BIO_puts(bio, "    Illegal Alert Length\n");
1252         else {
1253             BIO_printf(bio, "    Level=%s(%d), description=%s(%d)\n",
1254                        SSL_alert_type_string_long(msg[0] << 8),
1255                        msg[0], SSL_alert_desc_string_long(msg[1]), msg[1]);
1256         }
1257     case TLS1_RT_HEARTBEAT:
1258         ssl_print_heartbeat(bio, 4, msg, msglen);
1259         break;
1260 
1261     }
1262 
1263     BIO_puts(bio, "\n");
1264 }
1265 
1266 #endif
1267