ssl/t1_trce.c

   1 /*
   2  * Copyright 2012-2016 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the OpenSSL license (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #include "ssl_locl.h"
  11
  12 #ifndef OPENSSL_NO_SSL_TRACE
  13
  14 /* Packet trace support for OpenSSL */
  15
  16 typedef struct {
  17     int num;
  18     const char *name;
  19 } ssl_trace_tbl;
  20
  21 # define ssl_trace_str(val, tbl) \
  22         do_ssl_trace_str(val, tbl, OSSL_NELEM(tbl))
  23
  24 # define ssl_trace_list(bio, indent, msg, msglen, value, table) \
  25         do_ssl_trace_list(bio, indent, msg, msglen, value, \
  26          table, OSSL_NELEM(table))
  27
  28 static const char *do_ssl_trace_str(int val, ssl_trace_tbl *tbl, size_t ntbl)
  29 {
  30     size_t i;
  31     for (i = 0; i < ntbl; i++, tbl++) {
  32         if (tbl->num == val)
  33             return tbl->name;
  34     }
  35     return "UNKNOWN";
  36 }
  37
  38 static int do_ssl_trace_list(BIO *bio, int indent,
  39                              const unsigned char *msg, size_t msglen,
  40                              size_t vlen, ssl_trace_tbl *tbl, size_t ntbl)
  41 {
  42     int val;
  43     if (msglen % vlen)
  44         return 0;
  45     while (msglen) {
  46         val = msg[0];
  47         if (vlen == 2)
  48             val = (val << 8) | msg[1];
  49         BIO_indent(bio, indent, 80);
  50         BIO_printf(bio, "%s (%d)\n", do_ssl_trace_str(val, tbl, ntbl), val);
  51         msg += vlen;
  52         msglen -= vlen;
  53     }
  54     return 1;
  55 }
  56
  57 /* Version number */
  58
  59 static ssl_trace_tbl ssl_version_tbl[] = {
  60     {SSL3_VERSION, "SSL 3.0"},
  61     {TLS1_VERSION, "TLS 1.0"},
  62     {TLS1_1_VERSION, "TLS 1.1"},
  63     {TLS1_2_VERSION, "TLS 1.2"},
  64     {TLS1_3_VERSION, "TLS 1.3"},
  65     /* TODO(TLS1.3): Remove this line before release */
  66     {TLS1_3_VERSION_DRAFT, TLS1_3_VERSION_DRAFT_TXT},
  67     {DTLS1_VERSION, "DTLS 1.0"},
  68     {DTLS1_2_VERSION, "DTLS 1.2"},
  69     {DTLS1_BAD_VER, "DTLS 1.0 (bad)"}
  70 };
  71
  72 static ssl_trace_tbl ssl_content_tbl[] = {
  73     {SSL3_RT_CHANGE_CIPHER_SPEC, "ChangeCipherSpec"},
  74     {SSL3_RT_ALERT, "Alert"},
  75     {SSL3_RT_HANDSHAKE, "Handshake"},
  76     {SSL3_RT_APPLICATION_DATA, "ApplicationData"},
  77 };
  78
  79 /* Handshake types */
  80 static ssl_trace_tbl ssl_handshake_tbl[] = {
  81     {SSL3_MT_HELLO_REQUEST, "HelloRequest"},
  82     {SSL3_MT_CLIENT_HELLO, "ClientHello"},
  83     {SSL3_MT_SERVER_HELLO, "ServerHello"},
  84     {DTLS1_MT_HELLO_VERIFY_REQUEST, "HelloVerifyRequest"},
  85     {SSL3_MT_NEWSESSION_TICKET, "NewSessionTicket"},
  86     {SSL3_MT_CERTIFICATE, "Certificate"},
  87     {SSL3_MT_SERVER_KEY_EXCHANGE, "ServerKeyExchange"},
  88     {SSL3_MT_CERTIFICATE_REQUEST, "CertificateRequest"},
  89     {SSL3_MT_CLIENT_KEY_EXCHANGE, "ClientKeyExchange"},
  90     {SSL3_MT_CERTIFICATE_STATUS, "CertificateStatus"},
  91     {SSL3_MT_SERVER_DONE, "ServerHelloDone"},
  92     {SSL3_MT_CERTIFICATE_VERIFY, "CertificateVerify"},
  93     {SSL3_MT_CLIENT_KEY_EXCHANGE, "ClientKeyExchange"},
  94     {SSL3_MT_FINISHED, "Finished"},
  95     {SSL3_MT_CERTIFICATE_STATUS, "CertificateStatus"}
  96 };
  97
  98 /* Cipher suites */
  99 static ssl_trace_tbl ssl_ciphers_tbl[] = {
 100     {0x0000, "SSL_NULL_WITH_NULL_NULL"},
 101     {0x0001, "SSL_RSA_WITH_NULL_MD5"},
 102     {0x0002, "SSL_RSA_WITH_NULL_SHA"},
 103     {0x0003, "SSL_RSA_EXPORT_WITH_RC4_40_MD5"},
 104     {0x0004, "SSL_RSA_WITH_RC4_128_MD5"},
 105     {0x0005, "SSL_RSA_WITH_RC4_128_SHA"},
 106     {0x0006, "SSL_RSA_EXPORT_WITH_RC2_CBC_40_MD5"},
 107     {0x0007, "SSL_RSA_WITH_IDEA_CBC_SHA"},
 108     {0x0008, "SSL_RSA_EXPORT_WITH_DES40_CBC_SHA"},
 109     {0x0009, "SSL_RSA_WITH_DES_CBC_SHA"},
 110     {0x000A, "SSL_RSA_WITH_3DES_EDE_CBC_SHA"},
 111     {0x000B, "SSL_DH_DSS_EXPORT_WITH_DES40_CBC_SHA"},
 112     {0x000C, "SSL_DH_DSS_WITH_DES_CBC_SHA"},
 113     {0x000D, "SSL_DH_DSS_WITH_3DES_EDE_CBC_SHA"},
 114     {0x000E, "SSL_DH_RSA_EXPORT_WITH_DES40_CBC_SHA"},
 115     {0x000F, "SSL_DH_RSA_WITH_DES_CBC_SHA"},
 116     {0x0010, "SSL_DH_RSA_WITH_3DES_EDE_CBC_SHA"},
 117     {0x0011, "SSL_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA"},
 118     {0x0012, "SSL_DHE_DSS_WITH_DES_CBC_SHA"},
 119     {0x0013, "SSL_DHE_DSS_WITH_3DES_EDE_CBC_SHA"},
 120     {0x0014, "SSL_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA"},
 121     {0x0015, "SSL_DHE_RSA_WITH_DES_CBC_SHA"},
 122     {0x0016, "SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA"},
 123     {0x0017, "SSL_DH_anon_EXPORT_WITH_RC4_40_MD5"},
 124     {0x0018, "SSL_DH_anon_WITH_RC4_128_MD5"},
 125     {0x0019, "SSL_DH_anon_EXPORT_WITH_DES40_CBC_SHA"},
 126     {0x001A, "SSL_DH_anon_WITH_DES_CBC_SHA"},
 127     {0x001B, "SSL_DH_anon_WITH_3DES_EDE_CBC_SHA"},
 128     {0x001D, "SSL_FORTEZZA_KEA_WITH_FORTEZZA_CBC_SHA"},
 129     {0x001E, "SSL_FORTEZZA_KEA_WITH_RC4_128_SHA"},
 130     {0x001F, "TLS_KRB5_WITH_3DES_EDE_CBC_SHA"},
 131     {0x0020, "TLS_KRB5_WITH_RC4_128_SHA"},
 132     {0x0021, "TLS_KRB5_WITH_IDEA_CBC_SHA"},
 133     {0x0022, "TLS_KRB5_WITH_DES_CBC_MD5"},
 134     {0x0023, "TLS_KRB5_WITH_3DES_EDE_CBC_MD5"},
 135     {0x0024, "TLS_KRB5_WITH_RC4_128_MD5"},
 136     {0x0025, "TLS_KRB5_WITH_IDEA_CBC_MD5"},
 137     {0x0026, "TLS_KRB5_EXPORT_WITH_DES_CBC_40_SHA"},
 138     {0x0027, "TLS_KRB5_EXPORT_WITH_RC2_CBC_40_SHA"},
 139     {0x0028, "TLS_KRB5_EXPORT_WITH_RC4_40_SHA"},
 140     {0x0029, "TLS_KRB5_EXPORT_WITH_DES_CBC_40_MD5"},
 141     {0x002A, "TLS_KRB5_EXPORT_WITH_RC2_CBC_40_MD5"},
 142     {0x002B, "TLS_KRB5_EXPORT_WITH_RC4_40_MD5"},
 143     {0x002C, "TLS_PSK_WITH_NULL_SHA"},
 144     {0x002D, "TLS_DHE_PSK_WITH_NULL_SHA"},
 145     {0x002E, "TLS_RSA_PSK_WITH_NULL_SHA"},
 146     {0x002F, "TLS_RSA_WITH_AES_128_CBC_SHA"},
 147     {0x0030, "TLS_DH_DSS_WITH_AES_128_CBC_SHA"},
 148     {0x0031, "TLS_DH_RSA_WITH_AES_128_CBC_SHA"},
 149     {0x0032, "TLS_DHE_DSS_WITH_AES_128_CBC_SHA"},
 150     {0x0033, "TLS_DHE_RSA_WITH_AES_128_CBC_SHA"},
 151     {0x0034, "TLS_DH_anon_WITH_AES_128_CBC_SHA"},
 152     {0x0035, "TLS_RSA_WITH_AES_256_CBC_SHA"},
 153     {0x0036, "TLS_DH_DSS_WITH_AES_256_CBC_SHA"},
 154     {0x0037, "TLS_DH_RSA_WITH_AES_256_CBC_SHA"},
 155     {0x0038, "TLS_DHE_DSS_WITH_AES_256_CBC_SHA"},
 156     {0x0039, "TLS_DHE_RSA_WITH_AES_256_CBC_SHA"},
 157     {0x003A, "TLS_DH_anon_WITH_AES_256_CBC_SHA"},
 158     {0x003B, "TLS_RSA_WITH_NULL_SHA256"},
 159     {0x003C, "TLS_RSA_WITH_AES_128_CBC_SHA256"},
 160     {0x003D, "TLS_RSA_WITH_AES_256_CBC_SHA256"},
 161     {0x003E, "TLS_DH_DSS_WITH_AES_128_CBC_SHA256"},
 162     {0x003F, "TLS_DH_RSA_WITH_AES_128_CBC_SHA256"},
 163     {0x0040, "TLS_DHE_DSS_WITH_AES_128_CBC_SHA256"},
 164     {0x0041, "TLS_RSA_WITH_CAMELLIA_128_CBC_SHA"},
 165     {0x0042, "TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA"},
 166     {0x0043, "TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA"},
 167     {0x0044, "TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA"},
 168     {0x0045, "TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA"},
 169     {0x0046, "TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA"},
 170     {0x0067, "TLS_DHE_RSA_WITH_AES_128_CBC_SHA256"},
 171     {0x0068, "TLS_DH_DSS_WITH_AES_256_CBC_SHA256"},
 172     {0x0069, "TLS_DH_RSA_WITH_AES_256_CBC_SHA256"},
 173     {0x006A, "TLS_DHE_DSS_WITH_AES_256_CBC_SHA256"},
 174     {0x006B, "TLS_DHE_RSA_WITH_AES_256_CBC_SHA256"},
 175     {0x006C, "TLS_DH_anon_WITH_AES_128_CBC_SHA256"},
 176     {0x006D, "TLS_DH_anon_WITH_AES_256_CBC_SHA256"},
 177     {0x0084, "TLS_RSA_WITH_CAMELLIA_256_CBC_SHA"},
 178     {0x0085, "TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA"},
 179     {0x0086, "TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA"},
 180     {0x0087, "TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA"},
 181     {0x0088, "TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA"},
 182     {0x0089, "TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA"},
 183     {0x008A, "TLS_PSK_WITH_RC4_128_SHA"},
 184     {0x008B, "TLS_PSK_WITH_3DES_EDE_CBC_SHA"},
 185     {0x008C, "TLS_PSK_WITH_AES_128_CBC_SHA"},
 186     {0x008D, "TLS_PSK_WITH_AES_256_CBC_SHA"},
 187     {0x008E, "TLS_DHE_PSK_WITH_RC4_128_SHA"},
 188     {0x008F, "TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA"},
 189     {0x0090, "TLS_DHE_PSK_WITH_AES_128_CBC_SHA"},
 190     {0x0091, "TLS_DHE_PSK_WITH_AES_256_CBC_SHA"},
 191     {0x0092, "TLS_RSA_PSK_WITH_RC4_128_SHA"},
 192     {0x0093, "TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA"},
 193     {0x0094, "TLS_RSA_PSK_WITH_AES_128_CBC_SHA"},
 194     {0x0095, "TLS_RSA_PSK_WITH_AES_256_CBC_SHA"},
 195     {0x0096, "TLS_RSA_WITH_SEED_CBC_SHA"},
 196     {0x0097, "TLS_DH_DSS_WITH_SEED_CBC_SHA"},
 197     {0x0098, "TLS_DH_RSA_WITH_SEED_CBC_SHA"},
 198     {0x0099, "TLS_DHE_DSS_WITH_SEED_CBC_SHA"},
 199     {0x009A, "TLS_DHE_RSA_WITH_SEED_CBC_SHA"},
 200     {0x009B, "TLS_DH_anon_WITH_SEED_CBC_SHA"},
 201     {0x009C, "TLS_RSA_WITH_AES_128_GCM_SHA256"},
 202     {0x009D, "TLS_RSA_WITH_AES_256_GCM_SHA384"},
 203     {0x009E, "TLS_DHE_RSA_WITH_AES_128_GCM_SHA256"},
 204     {0x009F, "TLS_DHE_RSA_WITH_AES_256_GCM_SHA384"},
 205     {0x00A0, "TLS_DH_RSA_WITH_AES_128_GCM_SHA256"},
 206     {0x00A1, "TLS_DH_RSA_WITH_AES_256_GCM_SHA384"},
 207     {0x00A2, "TLS_DHE_DSS_WITH_AES_128_GCM_SHA256"},
 208     {0x00A3, "TLS_DHE_DSS_WITH_AES_256_GCM_SHA384"},
 209     {0x00A4, "TLS_DH_DSS_WITH_AES_128_GCM_SHA256"},
 210     {0x00A5, "TLS_DH_DSS_WITH_AES_256_GCM_SHA384"},
 211     {0x00A6, "TLS_DH_anon_WITH_AES_128_GCM_SHA256"},
 212     {0x00A7, "TLS_DH_anon_WITH_AES_256_GCM_SHA384"},
 213     {0x00A8, "TLS_PSK_WITH_AES_128_GCM_SHA256"},
 214     {0x00A9, "TLS_PSK_WITH_AES_256_GCM_SHA384"},
 215     {0x00AA, "TLS_DHE_PSK_WITH_AES_128_GCM_SHA256"},
 216     {0x00AB, "TLS_DHE_PSK_WITH_AES_256_GCM_SHA384"},
 217     {0x00AC, "TLS_RSA_PSK_WITH_AES_128_GCM_SHA256"},
 218     {0x00AD, "TLS_RSA_PSK_WITH_AES_256_GCM_SHA384"},
 219     {0x00AE, "TLS_PSK_WITH_AES_128_CBC_SHA256"},
 220     {0x00AF, "TLS_PSK_WITH_AES_256_CBC_SHA384"},
 221     {0x00B0, "TLS_PSK_WITH_NULL_SHA256"},
 222     {0x00B1, "TLS_PSK_WITH_NULL_SHA384"},
 223     {0x00B2, "TLS_DHE_PSK_WITH_AES_128_CBC_SHA256"},
 224     {0x00B3, "TLS_DHE_PSK_WITH_AES_256_CBC_SHA384"},
 225     {0x00B4, "TLS_DHE_PSK_WITH_NULL_SHA256"},
 226     {0x00B5, "TLS_DHE_PSK_WITH_NULL_SHA384"},
 227     {0x00B6, "TLS_RSA_PSK_WITH_AES_128_CBC_SHA256"},
 228     {0x00B7, "TLS_RSA_PSK_WITH_AES_256_CBC_SHA384"},
 229     {0x00B8, "TLS_RSA_PSK_WITH_NULL_SHA256"},
 230     {0x00B9, "TLS_RSA_PSK_WITH_NULL_SHA384"},
 231     {0x00BA, "TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256"},
 232     {0x00BB, "TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA256"},
 233     {0x00BC, "TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA256"},
 234     {0x00BD, "TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA256"},
 235     {0x00BE, "TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256"},
 236     {0x00BF, "TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA256"},
 237     {0x00C0, "TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256"},
 238     {0x00C1, "TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA256"},
 239     {0x00C2, "TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA256"},
 240     {0x00C3, "TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA256"},
 241     {0x00C4, "TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256"},
 242     {0x00C5, "TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA256"},
 243     {0x00FF, "TLS_EMPTY_RENEGOTIATION_INFO_SCSV"},
 244     {0x5600, "TLS_FALLBACK_SCSV"},
 245     {0xC001, "TLS_ECDH_ECDSA_WITH_NULL_SHA"},
 246     {0xC002, "TLS_ECDH_ECDSA_WITH_RC4_128_SHA"},
 247     {0xC003, "TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA"},
 248     {0xC004, "TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA"},
 249     {0xC005, "TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA"},
 250     {0xC006, "TLS_ECDHE_ECDSA_WITH_NULL_SHA"},
 251     {0xC007, "TLS_ECDHE_ECDSA_WITH_RC4_128_SHA"},
 252     {0xC008, "TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA"},
 253     {0xC009, "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA"},
 254     {0xC00A, "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA"},
 255     {0xC00B, "TLS_ECDH_RSA_WITH_NULL_SHA"},
 256     {0xC00C, "TLS_ECDH_RSA_WITH_RC4_128_SHA"},
 257     {0xC00D, "TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA"},
 258     {0xC00E, "TLS_ECDH_RSA_WITH_AES_128_CBC_SHA"},
 259     {0xC00F, "TLS_ECDH_RSA_WITH_AES_256_CBC_SHA"},
 260     {0xC010, "TLS_ECDHE_RSA_WITH_NULL_SHA"},
 261     {0xC011, "TLS_ECDHE_RSA_WITH_RC4_128_SHA"},
 262     {0xC012, "TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA"},
 263     {0xC013, "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA"},
 264     {0xC014, "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA"},
 265     {0xC015, "TLS_ECDH_anon_WITH_NULL_SHA"},
 266     {0xC016, "TLS_ECDH_anon_WITH_RC4_128_SHA"},
 267     {0xC017, "TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA"},
 268     {0xC018, "TLS_ECDH_anon_WITH_AES_128_CBC_SHA"},
 269     {0xC019, "TLS_ECDH_anon_WITH_AES_256_CBC_SHA"},
 270     {0xC01A, "TLS_SRP_SHA_WITH_3DES_EDE_CBC_SHA"},
 271     {0xC01B, "TLS_SRP_SHA_RSA_WITH_3DES_EDE_CBC_SHA"},
 272     {0xC01C, "TLS_SRP_SHA_DSS_WITH_3DES_EDE_CBC_SHA"},
 273     {0xC01D, "TLS_SRP_SHA_WITH_AES_128_CBC_SHA"},
 274     {0xC01E, "TLS_SRP_SHA_RSA_WITH_AES_128_CBC_SHA"},
 275     {0xC01F, "TLS_SRP_SHA_DSS_WITH_AES_128_CBC_SHA"},
 276     {0xC020, "TLS_SRP_SHA_WITH_AES_256_CBC_SHA"},
 277     {0xC021, "TLS_SRP_SHA_RSA_WITH_AES_256_CBC_SHA"},
 278     {0xC022, "TLS_SRP_SHA_DSS_WITH_AES_256_CBC_SHA"},
 279     {0xC023, "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256"},
 280     {0xC024, "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384"},
 281     {0xC025, "TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256"},
 282     {0xC026, "TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384"},
 283     {0xC027, "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256"},
 284     {0xC028, "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384"},
 285     {0xC029, "TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256"},
 286     {0xC02A, "TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384"},
 287     {0xC02B, "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256"},
 288     {0xC02C, "TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384"},
 289     {0xC02D, "TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256"},
 290     {0xC02E, "TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384"},
 291     {0xC02F, "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256"},
 292     {0xC030, "TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384"},
 293     {0xC031, "TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256"},
 294     {0xC032, "TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384"},
 295     {0xC033, "TLS_ECDHE_PSK_WITH_RC4_128_SHA"},
 296     {0xC034, "TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA"},
 297     {0xC035, "TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA"},
 298     {0xC036, "TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA"},
 299     {0xC037, "TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256"},
 300     {0xC038, "TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384"},
 301     {0xC039, "TLS_ECDHE_PSK_WITH_NULL_SHA"},
 302     {0xC03A, "TLS_ECDHE_PSK_WITH_NULL_SHA256"},
 303     {0xC03B, "TLS_ECDHE_PSK_WITH_NULL_SHA384"},
 304     {0xC03C, "TLS_RSA_WITH_ARIA_128_CBC_SHA256"},
 305     {0xC03D, "TLS_RSA_WITH_ARIA_256_CBC_SHA384"},
 306     {0xC03E, "TLS_DH_DSS_WITH_ARIA_128_CBC_SHA256"},
 307     {0xC03F, "TLS_DH_DSS_WITH_ARIA_256_CBC_SHA384"},
 308     {0xC040, "TLS_DH_RSA_WITH_ARIA_128_CBC_SHA256"},
 309     {0xC041, "TLS_DH_RSA_WITH_ARIA_256_CBC_SHA384"},
 310     {0xC042, "TLS_DHE_DSS_WITH_ARIA_128_CBC_SHA256"},
 311     {0xC043, "TLS_DHE_DSS_WITH_ARIA_256_CBC_SHA384"},
 312     {0xC044, "TLS_DHE_RSA_WITH_ARIA_128_CBC_SHA256"},
 313     {0xC045, "TLS_DHE_RSA_WITH_ARIA_256_CBC_SHA384"},
 314     {0xC046, "TLS_DH_anon_WITH_ARIA_128_CBC_SHA256"},
 315     {0xC047, "TLS_DH_anon_WITH_ARIA_256_CBC_SHA384"},
 316     {0xC048, "TLS_ECDHE_ECDSA_WITH_ARIA_128_CBC_SHA256"},
 317     {0xC049, "TLS_ECDHE_ECDSA_WITH_ARIA_256_CBC_SHA384"},
 318     {0xC04A, "TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256"},
 319     {0xC04B, "TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384"},
 320     {0xC04C, "TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256"},
 321     {0xC04D, "TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384"},
 322     {0xC04E, "TLS_ECDH_RSA_WITH_ARIA_128_CBC_SHA256"},
 323     {0xC04F, "TLS_ECDH_RSA_WITH_ARIA_256_CBC_SHA384"},
 324     {0xC050, "TLS_RSA_WITH_ARIA_128_GCM_SHA256"},
 325     {0xC051, "TLS_RSA_WITH_ARIA_256_GCM_SHA384"},
 326     {0xC052, "TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256"},
 327     {0xC053, "TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384"},
 328     {0xC054, "TLS_DH_RSA_WITH_ARIA_128_GCM_SHA256"},
 329     {0xC055, "TLS_DH_RSA_WITH_ARIA_256_GCM_SHA384"},
 330     {0xC056, "TLS_DHE_DSS_WITH_ARIA_128_GCM_SHA256"},
 331     {0xC057, "TLS_DHE_DSS_WITH_ARIA_256_GCM_SHA384"},
 332     {0xC058, "TLS_DH_DSS_WITH_ARIA_128_GCM_SHA256"},
 333     {0xC059, "TLS_DH_DSS_WITH_ARIA_256_GCM_SHA384"},
 334     {0xC05A, "TLS_DH_anon_WITH_ARIA_128_GCM_SHA256"},
 335     {0xC05B, "TLS_DH_anon_WITH_ARIA_256_GCM_SHA384"},
 336     {0xC05C, "TLS_ECDHE_ECDSA_WITH_ARIA_128_GCM_SHA256"},
 337     {0xC05D, "TLS_ECDHE_ECDSA_WITH_ARIA_256_GCM_SHA384"},
 338     {0xC05E, "TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256"},
 339     {0xC05F, "TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384"},
 340     {0xC060, "TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256"},
 341     {0xC061, "TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384"},
 342     {0xC062, "TLS_ECDH_RSA_WITH_ARIA_128_GCM_SHA256"},
 343     {0xC063, "TLS_ECDH_RSA_WITH_ARIA_256_GCM_SHA384"},
 344     {0xC064, "TLS_PSK_WITH_ARIA_128_CBC_SHA256"},
 345     {0xC065, "TLS_PSK_WITH_ARIA_256_CBC_SHA384"},
 346     {0xC066, "TLS_DHE_PSK_WITH_ARIA_128_CBC_SHA256"},
 347     {0xC067, "TLS_DHE_PSK_WITH_ARIA_256_CBC_SHA384"},
 348     {0xC068, "TLS_RSA_PSK_WITH_ARIA_128_CBC_SHA256"},
 349     {0xC069, "TLS_RSA_PSK_WITH_ARIA_256_CBC_SHA384"},
 350     {0xC06A, "TLS_PSK_WITH_ARIA_128_GCM_SHA256"},
 351     {0xC06B, "TLS_PSK_WITH_ARIA_256_GCM_SHA384"},
 352     {0xC06C, "TLS_DHE_PSK_WITH_ARIA_128_GCM_SHA256"},
 353     {0xC06D, "TLS_DHE_PSK_WITH_ARIA_256_GCM_SHA384"},
 354     {0xC06E, "TLS_RSA_PSK_WITH_ARIA_128_GCM_SHA256"},
 355     {0xC06F, "TLS_RSA_PSK_WITH_ARIA_256_GCM_SHA384"},
 356     {0xC070, "TLS_ECDHE_PSK_WITH_ARIA_128_CBC_SHA256"},
 357     {0xC071, "TLS_ECDHE_PSK_WITH_ARIA_256_CBC_SHA384"},
 358     {0xC072, "TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256"},
 359     {0xC073, "TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384"},
 360     {0xC074, "TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256"},
 361     {0xC075, "TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384"},
 362     {0xC076, "TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256"},
 363     {0xC077, "TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384"},
 364     {0xC078, "TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256"},
 365     {0xC079, "TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384"},
 366     {0xC07A, "TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256"},
 367     {0xC07B, "TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384"},
 368     {0xC07C, "TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256"},
 369     {0xC07D, "TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384"},
 370     {0xC07E, "TLS_DH_RSA_WITH_CAMELLIA_128_GCM_SHA256"},
 371     {0xC07F, "TLS_DH_RSA_WITH_CAMELLIA_256_GCM_SHA384"},
 372     {0xC080, "TLS_DHE_DSS_WITH_CAMELLIA_128_GCM_SHA256"},
 373     {0xC081, "TLS_DHE_DSS_WITH_CAMELLIA_256_GCM_SHA384"},
 374     {0xC082, "TLS_DH_DSS_WITH_CAMELLIA_128_GCM_SHA256"},
 375     {0xC083, "TLS_DH_DSS_WITH_CAMELLIA_256_GCM_SHA384"},
 376     {0xC084, "TLS_DH_anon_WITH_CAMELLIA_128_GCM_SHA256"},
 377     {0xC085, "TLS_DH_anon_WITH_CAMELLIA_256_GCM_SHA384"},
 378     {0xC086, "TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256"},
 379     {0xC087, "TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384"},
 380     {0xC088, "TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256"},
 381     {0xC089, "TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384"},
 382     {0xC08A, "TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256"},
 383     {0xC08B, "TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384"},
 384     {0xC08C, "TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256"},
 385     {0xC08D, "TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384"},
 386     {0xC08E, "TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256"},
 387     {0xC08F, "TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384"},
 388     {0xC090, "TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256"},
 389     {0xC091, "TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384"},
 390     {0xC092, "TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256"},
 391     {0xC093, "TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384"},
 392     {0xC094, "TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256"},
 393     {0xC095, "TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384"},
 394     {0xC096, "TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256"},
 395     {0xC097, "TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384"},
 396     {0xC098, "TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256"},
 397     {0xC099, "TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384"},
 398     {0xC09A, "TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256"},
 399     {0xC09B, "TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384"},
 400     {0xC09C, "TLS_RSA_WITH_AES_128_CCM"},
 401     {0xC09D, "TLS_RSA_WITH_AES_256_CCM"},
 402     {0xC09E, "TLS_DHE_RSA_WITH_AES_128_CCM"},
 403     {0xC09F, "TLS_DHE_RSA_WITH_AES_256_CCM"},
 404     {0xC0A0, "TLS_RSA_WITH_AES_128_CCM_8"},
 405     {0xC0A1, "TLS_RSA_WITH_AES_256_CCM_8"},
 406     {0xC0A2, "TLS_DHE_RSA_WITH_AES_128_CCM_8"},
 407     {0xC0A3, "TLS_DHE_RSA_WITH_AES_256_CCM_8"},
 408     {0xC0A4, "TLS_PSK_WITH_AES_128_CCM"},
 409     {0xC0A5, "TLS_PSK_WITH_AES_256_CCM"},
 410     {0xC0A6, "TLS_DHE_PSK_WITH_AES_128_CCM"},
 411     {0xC0A7, "TLS_DHE_PSK_WITH_AES_256_CCM"},
 412     {0xC0A8, "TLS_PSK_WITH_AES_128_CCM_8"},
 413     {0xC0A9, "TLS_PSK_WITH_AES_256_CCM_8"},
 414     {0xC0AA, "TLS_PSK_DHE_WITH_AES_128_CCM_8"},
 415     {0xC0AB, "TLS_PSK_DHE_WITH_AES_256_CCM_8"},
 416     {0xC0AC, "TLS_ECDHE_ECDSA_WITH_AES_128_CCM"},
 417     {0xC0AD, "TLS_ECDHE_ECDSA_WITH_AES_256_CCM"},
 418     {0xC0AE, "TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8"},
 419     {0xC0AF, "TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8"},
 420     {0xCCA8, "TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305"},
 421     {0xCCA9, "TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305"},
 422     {0xCCAA, "TLS_DHE_RSA_WITH_CHACHA20_POLY1305"},
 423     {0xCCAB, "TLS_PSK_WITH_CHACHA20_POLY1305"},
 424     {0xCCAC, "TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305"},
 425     {0xCCAD, "TLS_DHE_PSK_WITH_CHACHA20_POLY1305"},
 426     {0xCCAE, "TLS_RSA_PSK_WITH_CHACHA20_POLY1305"},
 427     {0x1301, "TLS_AES_128_GCM_SHA256"},
 428     {0xFEFE, "SSL_RSA_FIPS_WITH_DES_CBC_SHA"},
 429     {0xFEFF, "SSL_RSA_FIPS_WITH_3DES_EDE_CBC_SHA"},
 430 };
 431
 432 /* Compression methods */
 433 static ssl_trace_tbl ssl_comp_tbl[] = {
 434     {0x0000, "No Compression"},
 435     {0x0001, "Zlib Compression"}
 436 };
 437
 438 /* Extensions */
 439 static ssl_trace_tbl ssl_exts_tbl[] = {
 440     {TLSEXT_TYPE_server_name, "server_name"},
 441     {TLSEXT_TYPE_max_fragment_length, "max_fragment_length"},
 442     {TLSEXT_TYPE_client_certificate_url, "client_certificate_url"},
 443     {TLSEXT_TYPE_trusted_ca_keys, "trusted_ca_keys"},
 444     {TLSEXT_TYPE_truncated_hmac, "truncated_hmac"},
 445     {TLSEXT_TYPE_status_request, "status_request"},
 446     {TLSEXT_TYPE_user_mapping, "user_mapping"},
 447     {TLSEXT_TYPE_client_authz, "client_authz"},
 448     {TLSEXT_TYPE_server_authz, "server_authz"},
 449     {TLSEXT_TYPE_cert_type, "cert_type"},
 450     {TLSEXT_TYPE_supported_groups, "supported_groups"},
 451     {TLSEXT_TYPE_ec_point_formats, "ec_point_formats"},
 452     {TLSEXT_TYPE_srp, "srp"},
 453     {TLSEXT_TYPE_signature_algorithms, "signature_algorithms"},
 454     {TLSEXT_TYPE_use_srtp, "use_srtp"},
 455     {TLSEXT_TYPE_session_ticket, "session_ticket"},
 456     {TLSEXT_TYPE_supported_versions, "supported_versions"},
 457     {TLSEXT_TYPE_renegotiate, "renegotiate"},
 458 # ifndef OPENSSL_NO_NEXTPROTONEG
 459     {TLSEXT_TYPE_next_proto_neg, "next_proto_neg"},
 460 # endif
 461     {TLSEXT_TYPE_signed_certificate_timestamp, "signed_certificate_timestamps"},
 462     {TLSEXT_TYPE_padding, "padding"},
 463     {TLSEXT_TYPE_encrypt_then_mac, "encrypt_then_mac"},
 464     {TLSEXT_TYPE_extended_master_secret, "extended_master_secret"}
 465 };
 466
 467 static ssl_trace_tbl ssl_groups_tbl[] = {
 468     {1, "sect163k1 (K-163)"},
 469     {2, "sect163r1"},
 470     {3, "sect163r2 (B-163)"},
 471     {4, "sect193r1"},
 472     {5, "sect193r2"},
 473     {6, "sect233k1 (K-233)"},
 474     {7, "sect233r1 (B-233)"},
 475     {8, "sect239k1"},
 476     {9, "sect283k1 (K-283)"},
 477     {10, "sect283r1 (B-283)"},
 478     {11, "sect409k1 (K-409)"},
 479     {12, "sect409r1 (B-409)"},
 480     {13, "sect571k1 (K-571)"},
 481     {14, "sect571r1 (B-571)"},
 482     {15, "secp160k1"},
 483     {16, "secp160r1"},
 484     {17, "secp160r2"},
 485     {18, "secp192k1"},
 486     {19, "secp192r1 (P-192)"},
 487     {20, "secp224k1"},
 488     {21, "secp224r1 (P-224)"},
 489     {22, "secp256k1"},
 490     {23, "secp256r1 (P-256)"},
 491     {24, "secp384r1 (P-384)"},
 492     {25, "secp521r1 (P-521)"},
 493     {26, "brainpoolP256r1"},
 494     {27, "brainpoolP384r1"},
 495     {28, "brainpoolP512r1"},
 496     {29, "ecdh_x25519"},
 497     {0xFF01, "arbitrary_explicit_prime_curves"},
 498     {0xFF02, "arbitrary_explicit_char2_curves"}
 499 };
 500
 501 static ssl_trace_tbl ssl_point_tbl[] = {
 502     {0, "uncompressed"},
 503     {1, "ansiX962_compressed_prime"},
 504     {2, "ansiX962_compressed_char2"}
 505 };
 506
 507 static ssl_trace_tbl ssl_md_tbl[] = {
 508     {TLSEXT_hash_none, "none"},
 509     {TLSEXT_hash_md5, "md5"},
 510     {TLSEXT_hash_sha1, "sha1"},
 511     {TLSEXT_hash_sha224, "sha224"},
 512     {TLSEXT_hash_sha256, "sha256"},
 513     {TLSEXT_hash_sha384, "sha384"},
 514     {TLSEXT_hash_sha512, "sha512"},
 515     {TLSEXT_hash_gostr3411, "md_gost94"},
 516     {TLSEXT_hash_gostr34112012_256, "md_gost2012_256"},
 517     {TLSEXT_hash_gostr34112012_512, "md_gost2012_512"}
 518 };
 519
 520 static ssl_trace_tbl ssl_sig_tbl[] = {
 521     {TLSEXT_signature_anonymous, "anonymous"},
 522     {TLSEXT_signature_rsa, "rsa"},
 523     {TLSEXT_signature_dsa, "dsa"},
 524     {TLSEXT_signature_ecdsa, "ecdsa"},
 525     {TLSEXT_signature_gostr34102001, "gost2001"},
 526     {TLSEXT_signature_gostr34102012_256, "gost2012_256"},
 527     {TLSEXT_signature_gostr34102012_512, "gost2012_512"}
 528 };
 529
 530 static ssl_trace_tbl ssl_hb_tbl[] = {
 531     {1, "peer_allowed_to_send"},
 532     {2, "peer_not_allowed_to_send"}
 533 };
 534
 535 static ssl_trace_tbl ssl_ctype_tbl[] = {
 536     {1, "rsa_sign"},
 537     {2, "dss_sign"},
 538     {3, "rsa_fixed_dh"},
 539     {4, "dss_fixed_dh"},
 540     {5, "rsa_ephemeral_dh"},
 541     {6, "dss_ephemeral_dh"},
 542     {20, "fortezza_dms"},
 543     {64, "ecdsa_sign"},
 544     {65, "rsa_fixed_ecdh"},
 545     {66, "ecdsa_fixed_ecdh"}
 546 };
 547
 548 static ssl_trace_tbl ssl_crypto_tbl[] = {
 549     {TLS1_RT_CRYPTO_PREMASTER, "Premaster Secret"},
 550     {TLS1_RT_CRYPTO_CLIENT_RANDOM, "Client Random"},
 551     {TLS1_RT_CRYPTO_SERVER_RANDOM, "Server Random"},
 552     {TLS1_RT_CRYPTO_MASTER, "Master Secret"},
 553     {TLS1_RT_CRYPTO_MAC | TLS1_RT_CRYPTO_WRITE, "Write Mac Secret"},
 554     {TLS1_RT_CRYPTO_MAC | TLS1_RT_CRYPTO_READ, "Read Mac Secret"},
 555     {TLS1_RT_CRYPTO_KEY | TLS1_RT_CRYPTO_WRITE, "Write Key"},
 556     {TLS1_RT_CRYPTO_KEY | TLS1_RT_CRYPTO_READ, "Read Key"},
 557     {TLS1_RT_CRYPTO_IV | TLS1_RT_CRYPTO_WRITE, "Write IV"},
 558     {TLS1_RT_CRYPTO_IV | TLS1_RT_CRYPTO_READ, "Read IV"},
 559     {TLS1_RT_CRYPTO_FIXED_IV | TLS1_RT_CRYPTO_WRITE, "Write IV (fixed part)"},
 560     {TLS1_RT_CRYPTO_FIXED_IV | TLS1_RT_CRYPTO_READ, "Read IV (fixed part)"}
 561 };
 562
 563 static void ssl_print_hex(BIO *bio, int indent, const char *name,
 564                           const unsigned char *msg, size_t msglen)
 565 {
 566     size_t i;
 567     BIO_indent(bio, indent, 80);
 568     BIO_printf(bio, "%s (len=%d): ", name, (int)msglen);
 569     for (i = 0; i < msglen; i++)
 570         BIO_printf(bio, "%02X", msg[i]);
 571     BIO_puts(bio, "\n");
 572 }
 573
 574 static int ssl_print_hexbuf(BIO *bio, int indent,
 575                             const char *name, size_t nlen,
 576                             const unsigned char **pmsg, size_t *pmsglen)
 577 {
 578     size_t blen;
 579     const unsigned char *p = *pmsg;
 580     if (*pmsglen < nlen)
 581         return 0;
 582     blen = p[0];
 583     if (nlen > 1)
 584         blen = (blen << 8) | p[1];
 585     if (*pmsglen < nlen + blen)
 586         return 0;
 587     p += nlen;
 588     ssl_print_hex(bio, indent, name, p, blen);
 589     *pmsg += blen + nlen;
 590     *pmsglen -= blen + nlen;
 591     return 1;
 592 }
 593
 594 static int ssl_print_version(BIO *bio, int indent, const char *name,
 595                              const unsigned char **pmsg, size_t *pmsglen)
 596 {
 597     int vers;
 598     if (*pmsglen < 2)
 599         return 0;
 600     vers = ((*pmsg)[0] << 8) | (*pmsg)[1];
 601     BIO_indent(bio, indent, 80);
 602     BIO_printf(bio, "%s=0x%x (%s)\n",
 603                name, vers, ssl_trace_str(vers, ssl_version_tbl));
 604     *pmsg += 2;
 605     *pmsglen -= 2;
 606     return 1;
 607 }
 608
 609 static int ssl_print_random(BIO *bio, int indent,
 610                             const unsigned char **pmsg, size_t *pmsglen)
 611 {
 612     unsigned int tm;
 613     const unsigned char *p = *pmsg;
 614     if (*pmsglen < 32)
 615         return 0;
 616     tm = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3];
 617     p += 4;
 618     BIO_indent(bio, indent, 80);
 619     BIO_puts(bio, "Random:\n");
 620     BIO_indent(bio, indent + 2, 80);
 621     BIO_printf(bio, "gmt_unix_time=0x%08X\n", tm);
 622     ssl_print_hex(bio, indent + 2, "random_bytes", p, 28);
 623     *pmsg += 32;
 624     *pmsglen -= 32;
 625     return 1;
 626 }
 627
 628 static int ssl_print_signature(BIO *bio, int indent, SSL *s,
 629                                const unsigned char **pmsg, size_t *pmsglen)
 630 {
 631     if (*pmsglen < 2)
 632         return 0;
 633     if (SSL_USE_SIGALGS(s)) {
 634         const unsigned char *p = *pmsg;
 635         BIO_indent(bio, indent, 80);
 636         BIO_printf(bio, "Signature Algorithm %s+%s (%d+%d)\n",
 637                    ssl_trace_str(p[0], ssl_md_tbl),
 638                    ssl_trace_str(p[1], ssl_sig_tbl), p[0], p[1]);
 639         *pmsg += 2;
 640         *pmsglen -= 2;
 641     }
 642     return ssl_print_hexbuf(bio, indent, "Signature", 2, pmsg, pmsglen);
 643 }
 644
 645 static int ssl_print_extension(BIO *bio, int indent, int server, int extype,
 646                                const unsigned char *ext, size_t extlen)
 647 {
 648     size_t xlen;
 649     BIO_indent(bio, indent, 80);
 650     BIO_printf(bio, "extension_type=%s(%d), length=%d\n",
 651                ssl_trace_str(extype, ssl_exts_tbl), extype, (int)extlen);
 652     switch (extype) {
 653     case TLSEXT_TYPE_ec_point_formats:
 654         if (extlen < 1)
 655             return 0;
 656         xlen = ext[0];
 657         if (extlen != xlen + 1)
 658             return 0;
 659         return ssl_trace_list(bio, indent + 2, ext + 1, xlen, 1, ssl_point_tbl);
 660
 661     case TLSEXT_TYPE_supported_groups:
 662         if (extlen < 2)
 663             return 0;
 664         xlen = (ext[0] << 8) | ext[1];
 665         if (extlen != xlen + 2)
 666             return 0;
 667         return ssl_trace_list(bio, indent + 2, ext + 2, xlen, 2, ssl_groups_tbl);
 668
 669     case TLSEXT_TYPE_signature_algorithms:
 670
 671         if (extlen < 2)
 672             return 0;
 673         xlen = (ext[0] << 8) | ext[1];
 674         if (extlen != xlen + 2)
 675             return 0;
 676         if (xlen & 1)
 677             return 0;
 678         ext += 2;
 679         while (xlen > 0) {
 680             BIO_indent(bio, indent + 2, 80);
 681             BIO_printf(bio, "%s+%s (%d+%d)\n",
 682                        ssl_trace_str(ext[0], ssl_md_tbl),
 683                        ssl_trace_str(ext[1], ssl_sig_tbl), ext[0], ext[1]);
 684             xlen -= 2;
 685             ext += 2;
 686         }
 687         break;
 688
 689     case TLSEXT_TYPE_renegotiate:
 690         if (extlen < 1)
 691             return 0;
 692         xlen = ext[0];
 693         if (xlen + 1 != extlen)
 694             return 0;
 695         ext++;
 696         if (xlen) {
 697             if (server) {
 698                 if (xlen & 1)
 699                     return 0;
 700                 xlen >>= 1;
 701             }
 702             ssl_print_hex(bio, indent + 4, "client_verify_data", ext, xlen);
 703             if (server) {
 704                 ext += xlen;
 705                 ssl_print_hex(bio, indent + 4, "server_verify_data", ext, xlen);
 706             }
 707         } else {
 708             BIO_indent(bio, indent + 4, 80);
 709             BIO_puts(bio, "<EMPTY>\n");
 710         }
 711         break;
 712
 713     case TLSEXT_TYPE_heartbeat:
 714         return 0;
 715
 716     case TLSEXT_TYPE_session_ticket:
 717         if (extlen != 0)
 718             ssl_print_hex(bio, indent + 4, "ticket", ext, extlen);
 719         break;
 720
 721     case TLSEXT_TYPE_supported_versions:
 722         if (extlen < 1)
 723             return 0;
 724         xlen = ext[0];
 725         if (extlen != xlen + 1)
 726             return 0;
 727         return ssl_trace_list(bio, indent + 2, ext + 1, xlen, 2,
 728                               ssl_version_tbl);
 729
 730     default:
 731         BIO_dump_indent(bio, (const char *)ext, extlen, indent + 2);
 732     }
 733     return 1;
 734 }
 735
 736 static int ssl_print_extensions(BIO *bio, int indent, int server,
 737                                 const unsigned char *msg, size_t msglen)
 738 {
 739     size_t extslen;
 740     BIO_indent(bio, indent, 80);
 741     if (msglen == 0) {
 742         BIO_puts(bio, "No Extensions\n");
 743         return 1;
 744     }
 745     extslen = (msg[0] << 8) | msg[1];
 746     if (extslen != msglen - 2)
 747         return 0;
 748     msg += 2;
 749     msglen = extslen;
 750     BIO_printf(bio, "extensions, length = %d\n", (int)msglen);
 751     while (msglen > 0) {
 752         int extype;
 753         size_t extlen;
 754         if (msglen < 4)
 755             return 0;
 756         extype = (msg[0] << 8) | msg[1];
 757         extlen = (msg[2] << 8) | msg[3];
 758         if (msglen < extlen + 4)
 759             return 0;
 760         msg += 4;
 761         if (!ssl_print_extension(bio, indent + 2, server, extype, msg, extlen))
 762             return 0;
 763         msg += extlen;
 764         msglen -= extlen + 4;
 765     }
 766     return 1;
 767 }
 768
 769 static int ssl_print_client_hello(BIO *bio, SSL *ssl, int indent,
 770                                   const unsigned char *msg, size_t msglen)
 771 {
 772     size_t len;
 773     unsigned int cs;
 774     if (!ssl_print_version(bio, indent, "client_version", &msg, &msglen))
 775         return 0;
 776     if (!ssl_print_random(bio, indent, &msg, &msglen))
 777         return 0;
 778     if (!ssl_print_hexbuf(bio, indent, "session_id", 1, &msg, &msglen))
 779         return 0;
 780     if (SSL_IS_DTLS(ssl)) {
 781         if (!ssl_print_hexbuf(bio, indent, "cookie", 1, &msg, &msglen))
 782             return 0;
 783     }
 784     if (msglen < 2)
 785         return 0;
 786     len = (msg[0] << 8) | msg[1];
 787     msg += 2;
 788     msglen -= 2;
 789     BIO_indent(bio, indent, 80);
 790     BIO_printf(bio, "cipher_suites (len=%d)\n", (int)len);
 791     if (msglen < len || len & 1)
 792         return 0;
 793     while (len > 0) {
 794         cs = (msg[0] << 8) | msg[1];
 795         BIO_indent(bio, indent + 2, 80);
 796         BIO_printf(bio, "{0x%02X, 0x%02X} %s\n",
 797                    msg[0], msg[1], ssl_trace_str(cs, ssl_ciphers_tbl));
 798         msg += 2;
 799         msglen -= 2;
 800         len -= 2;
 801     }
 802     if (msglen < 1)
 803         return 0;
 804     len = msg[0];
 805     msg++;
 806     msglen--;
 807     if (msglen < len)
 808         return 0;
 809     BIO_indent(bio, indent, 80);
 810     BIO_printf(bio, "compression_methods (len=%d)\n", (int)len);
 811     while (len > 0) {
 812         BIO_indent(bio, indent + 2, 80);
 813         BIO_printf(bio, "%s (0x%02X)\n",
 814                    ssl_trace_str(msg[0], ssl_comp_tbl), msg[0]);
 815         msg++;
 816         msglen--;
 817         len--;
 818     }
 819     if (!ssl_print_extensions(bio, indent, 0, msg, msglen))
 820         return 0;
 821     return 1;
 822 }
 823
 824 static int dtls_print_hello_vfyrequest(BIO *bio, int indent,
 825                                        const unsigned char *msg, size_t msglen)
 826 {
 827     if (!ssl_print_version(bio, indent, "server_version", &msg, &msglen))
 828         return 0;
 829     if (!ssl_print_hexbuf(bio, indent, "cookie", 1, &msg, &msglen))
 830         return 0;
 831     return 1;
 832 }
 833
 834 static int ssl_print_server_hello(BIO *bio, int indent,
 835                                   const unsigned char *msg, size_t msglen)
 836 {
 837     unsigned int cs;
 838     if (!ssl_print_version(bio, indent, "server_version", &msg, &msglen))
 839         return 0;
 840     if (!ssl_print_random(bio, indent, &msg, &msglen))
 841         return 0;
 842     if (!ssl_print_hexbuf(bio, indent, "session_id", 1, &msg, &msglen))
 843         return 0;
 844     if (msglen < 2)
 845         return 0;
 846     cs = (msg[0] << 8) | msg[1];
 847     BIO_indent(bio, indent, 80);
 848     BIO_printf(bio, "cipher_suite {0x%02X, 0x%02X} %s\n",
 849                msg[0], msg[1], ssl_trace_str(cs, ssl_ciphers_tbl));
 850     msg += 2;
 851     msglen -= 2;
 852     if (msglen < 1)
 853         return 0;
 854     BIO_indent(bio, indent, 80);
 855     BIO_printf(bio, "compression_method: %s (0x%02X)\n",
 856                ssl_trace_str(msg[0], ssl_comp_tbl), msg[0]);
 857     msg++;
 858     msglen--;
 859     if (!ssl_print_extensions(bio, indent, 1, msg, msglen))
 860         return 0;
 861     return 1;
 862 }
 863
 864 static int ssl_get_keyex(const char **pname, SSL *ssl)
 865 {
 866     unsigned long alg_k = ssl->s3->tmp.new_cipher->algorithm_mkey;
 867     if (alg_k & SSL_kRSA) {
 868         *pname = "rsa";
 869         return SSL_kRSA;
 870     }
 871     if (alg_k & SSL_kDHE) {
 872         *pname = "DHE";
 873         return SSL_kDHE;
 874     }
 875     if (alg_k & SSL_kECDHE) {
 876         *pname = "ECDHE";
 877         return SSL_kECDHE;
 878     }
 879     if (alg_k & SSL_kPSK) {
 880         *pname = "PSK";
 881         return SSL_kPSK;
 882     }
 883     if (alg_k & SSL_kRSAPSK) {
 884         *pname = "RSAPSK";
 885         return SSL_kRSAPSK;
 886     }
 887     if (alg_k & SSL_kDHEPSK) {
 888         *pname = "DHEPSK";
 889         return SSL_kDHEPSK;
 890     }
 891     if (alg_k & SSL_kECDHEPSK) {
 892         *pname = "ECDHEPSK";
 893         return SSL_kECDHEPSK;
 894     }
 895     if (alg_k & SSL_kSRP) {
 896         *pname = "SRP";
 897         return SSL_kSRP;
 898     }
 899     if (alg_k & SSL_kGOST) {
 900         *pname = "GOST";
 901         return SSL_kGOST;
 902     }
 903     *pname = "UNKNOWN";
 904     return 0;
 905 }
 906
 907 static int ssl_print_client_keyex(BIO *bio, int indent, SSL *ssl,
 908                                   const unsigned char *msg, size_t msglen)
 909 {
 910     const char *algname;
 911     int id;
 912     id = ssl_get_keyex(&algname, ssl);
 913     BIO_indent(bio, indent, 80);
 914     BIO_printf(bio, "KeyExchangeAlgorithm=%s\n", algname);
 915     if (id & SSL_PSK) {
 916         if (!ssl_print_hexbuf(bio, indent + 2,
 917                               "psk_identity", 2, &msg, &msglen))
 918             return 0;
 919     }
 920     switch (id) {
 921
 922     case SSL_kRSA:
 923     case SSL_kRSAPSK:
 924         if (TLS1_get_version(ssl) == SSL3_VERSION) {
 925             ssl_print_hex(bio, indent + 2,
 926                           "EncyptedPreMasterSecret", msg, msglen);
 927         } else {
 928             if (!ssl_print_hexbuf(bio, indent + 2,
 929                                   "EncyptedPreMasterSecret", 2, &msg, &msglen))
 930                 return 0;
 931         }
 932         break;
 933
 934     case SSL_kDHE:
 935     case SSL_kDHEPSK:
 936         if (!ssl_print_hexbuf(bio, indent + 2, "dh_Yc", 2, &msg, &msglen))
 937             return 0;
 938         break;
 939
 940     case SSL_kECDHE:
 941     case SSL_kECDHEPSK:
 942         if (!ssl_print_hexbuf(bio, indent + 2, "ecdh_Yc", 1, &msg, &msglen))
 943             return 0;
 944         break;
 945
 946     }
 947
 948     return !msglen;
 949 }
 950
 951 static int ssl_print_server_keyex(BIO *bio, int indent, SSL *ssl,
 952                                   const unsigned char *msg, size_t msglen)
 953 {
 954     const char *algname;
 955     int id;
 956     id = ssl_get_keyex(&algname, ssl);
 957     BIO_indent(bio, indent, 80);
 958     BIO_printf(bio, "KeyExchangeAlgorithm=%s\n", algname);
 959     if (id & SSL_PSK) {
 960         if (!ssl_print_hexbuf(bio, indent + 2,
 961                               "psk_identity_hint", 2, &msg, &msglen))
 962             return 0;
 963     }
 964     switch (id) {
 965     case SSL_kRSA:
 966
 967         if (!ssl_print_hexbuf(bio, indent + 2, "rsa_modulus", 2, &msg, &msglen))
 968             return 0;
 969         if (!ssl_print_hexbuf(bio, indent + 2, "rsa_exponent", 2,
 970                               &msg, &msglen))
 971             return 0;
 972         break;
 973
 974     case SSL_kDHE:
 975     case SSL_kDHEPSK:
 976         if (!ssl_print_hexbuf(bio, indent + 2, "dh_p", 2, &msg, &msglen))
 977             return 0;
 978         if (!ssl_print_hexbuf(bio, indent + 2, "dh_g", 2, &msg, &msglen))
 979             return 0;
 980         if (!ssl_print_hexbuf(bio, indent + 2, "dh_Ys", 2, &msg, &msglen))
 981             return 0;
 982         break;
 983
 984 # ifndef OPENSSL_NO_EC
 985     case SSL_kECDHE:
 986     case SSL_kECDHEPSK:
 987         if (msglen < 1)
 988             return 0;
 989         BIO_indent(bio, indent + 2, 80);
 990         if (msg[0] == EXPLICIT_PRIME_CURVE_TYPE)
 991             BIO_puts(bio, "explicit_prime\n");
 992         else if (msg[0] == EXPLICIT_CHAR2_CURVE_TYPE)
 993             BIO_puts(bio, "explicit_char2\n");
 994         else if (msg[0] == NAMED_CURVE_TYPE) {
 995             int curve;
 996             if (msglen < 3)
 997                 return 0;
 998             curve = (msg[1] << 8) | msg[2];
 999             BIO_printf(bio, "named_curve: %s (%d)\n",
1000                        ssl_trace_str(curve, ssl_groups_tbl), curve);
1001             msg += 3;
1002             msglen -= 3;
1003             if (!ssl_print_hexbuf(bio, indent + 2, "point", 1, &msg, &msglen))
1004                 return 0;
1005         } else {
1006             BIO_printf(bio, "UNKNOWN CURVE PARAMETER TYPE %d\n", msg[0]);
1007             return 0;
1008         }
1009         break;
1010 # endif
1011
1012     case SSL_kPSK:
1013     case SSL_kRSAPSK:
1014         break;
1015     }
1016     if (!(id & SSL_PSK))
1017         ssl_print_signature(bio, indent, ssl, &msg, &msglen);
1018     return !msglen;
1019 }
1020
1021 static int ssl_print_certificate(BIO *bio, int indent,
1022                                  const unsigned char **pmsg, size_t *pmsglen)
1023 {
1024     size_t msglen = *pmsglen;
1025     size_t clen;
1026     X509 *x;
1027     const unsigned char *p = *pmsg, *q;
1028     if (msglen < 3)
1029         return 0;
1030     clen = (p[0] << 16) | (p[1] << 8) | p[2];
1031     if (msglen < clen + 3)
1032         return 0;
1033     q = p + 3;
1034     BIO_indent(bio, indent, 80);
1035     BIO_printf(bio, "ASN.1Cert, length=%d", (int)clen);
1036     x = d2i_X509(NULL, &q, clen);
1037     if (!x)
1038         BIO_puts(bio, "<UNPARSEABLE CERTIFICATE>\n");
1039     else {
1040         BIO_puts(bio, "\n------details-----\n");
1041         X509_print_ex(bio, x, XN_FLAG_ONELINE, 0);
1042         PEM_write_bio_X509(bio, x);
1043         /* Print certificate stuff */
1044         BIO_puts(bio, "------------------\n");
1045         X509_free(x);
1046     }
1047     if (q != p + 3 + clen) {
1048         BIO_puts(bio, "<TRAILING GARBAGE AFTER CERTIFICATE>\n");
1049     }
1050     *pmsg += clen + 3;
1051     *pmsglen -= clen + 3;
1052     return 1;
1053 }
1054
1055 static int ssl_print_certificates(BIO *bio, int indent,
1056                                   const unsigned char *msg, size_t msglen)
1057 {
1058     size_t clen;
1059     if (msglen < 3)
1060         return 0;
1061     clen = (msg[0] << 16) | (msg[1] << 8) | msg[2];
1062     if (msglen != clen + 3)
1063         return 0;
1064     msg += 3;
1065     BIO_indent(bio, indent, 80);
1066     BIO_printf(bio, "certificate_list, length=%d\n", (int)clen);
1067     while (clen > 0) {
1068         if (!ssl_print_certificate(bio, indent + 2, &msg, &clen))
1069             return 0;
1070     }
1071     return 1;
1072 }
1073
1074 static int ssl_print_cert_request(BIO *bio, int indent, SSL *s,
1075                                   const unsigned char *msg, size_t msglen)
1076 {
1077     size_t xlen;
1078     if (msglen < 1)
1079         return 0;
1080     xlen = msg[0];
1081     if (msglen < xlen + 1)
1082         return 0;
1083     msg++;
1084     BIO_indent(bio, indent, 80);
1085     BIO_printf(bio, "certificate_types (len=%d)\n", (int)xlen);
1086     if (!ssl_trace_list(bio, indent + 2, msg, xlen, 1, ssl_ctype_tbl))
1087         return 0;
1088     msg += xlen;
1089     msglen -= xlen + 1;
1090     if (!SSL_USE_SIGALGS(s))
1091         goto skip_sig;
1092     if (msglen < 2)
1093         return 0;
1094     xlen = (msg[0] << 8) | msg[1];
1095     if (msglen < xlen + 2 || (xlen & 1))
1096         return 0;
1097     msg += 2;
1098     BIO_indent(bio, indent, 80);
1099     BIO_printf(bio, "signature_algorithms (len=%d)\n", (int)xlen);
1100     while (xlen > 0) {
1101         BIO_indent(bio, indent + 2, 80);
1102         BIO_printf(bio, "%s+%s (%d+%d)\n",
1103                    ssl_trace_str(msg[0], ssl_md_tbl),
1104                    ssl_trace_str(msg[1], ssl_sig_tbl), msg[0], msg[1]);
1105         xlen -= 2;
1106         msg += 2;
1107     }
1108     msg += xlen;
1109     msglen -= xlen + 2;
1110
1111  skip_sig:
1112     xlen = (msg[0] << 8) | msg[1];
1113     BIO_indent(bio, indent, 80);
1114     if (msglen < xlen + 2)
1115         return 0;
1116     msg += 2;
1117     msglen -= 2;
1118     BIO_printf(bio, "certificate_authorities (len=%d)\n", (int)xlen);
1119     while (xlen > 0) {
1120         size_t dlen;
1121         X509_NAME *nm;
1122         const unsigned char *p;
1123         if (xlen < 2)
1124             return 0;
1125         dlen = (msg[0] << 8) | msg[1];
1126         if (xlen < dlen + 2)
1127             return 0;
1128         msg += 2;
1129         BIO_indent(bio, indent + 2, 80);
1130         BIO_printf(bio, "DistinguishedName (len=%d): ", (int)dlen);
1131         p = msg;
1132         nm = d2i_X509_NAME(NULL, &p, dlen);
1133         if (!nm) {
1134             BIO_puts(bio, "<UNPARSEABLE DN>\n");
1135         } else {
1136             X509_NAME_print_ex(bio, nm, 0, XN_FLAG_ONELINE);
1137             BIO_puts(bio, "\n");
1138             X509_NAME_free(nm);
1139         }
1140         xlen -= dlen + 2;
1141         msg += dlen;
1142     }
1143     return 1;
1144 }
1145
1146 static int ssl_print_ticket(BIO *bio, int indent,
1147                             const unsigned char *msg, size_t msglen)
1148 {
1149     unsigned int tick_life;
1150     if (msglen == 0) {
1151         BIO_indent(bio, indent + 2, 80);
1152         BIO_puts(bio, "No Ticket\n");
1153         return 1;
1154     }
1155     if (msglen < 4)
1156         return 0;
1157     tick_life = (msg[0] << 24) | (msg[1] << 16) | (msg[2] << 8) | msg[3];
1158     msglen -= 4;
1159     msg += 4;
1160     BIO_indent(bio, indent + 2, 80);
1161     BIO_printf(bio, "ticket_lifetime_hint=%u\n", tick_life);
1162     if (!ssl_print_hexbuf(bio, indent + 2, "ticket", 2, &msg, &msglen))
1163         return 0;
1164     if (msglen)
1165         return 0;
1166     return 1;
1167 }
1168
1169 static int ssl_print_handshake(BIO *bio, SSL *ssl,
1170                                const unsigned char *msg, size_t msglen,
1171                                int indent)
1172 {
1173     size_t hlen;
1174     unsigned char htype;
1175     if (msglen < 4)
1176         return 0;
1177     htype = msg[0];
1178     hlen = (msg[1] << 16) | (msg[2] << 8) | msg[3];
1179     BIO_indent(bio, indent, 80);
1180     BIO_printf(bio, "%s, Length=%d\n",
1181                ssl_trace_str(htype, ssl_handshake_tbl), (int)hlen);
1182     msg += 4;
1183     msglen -= 4;
1184     if (SSL_IS_DTLS(ssl)) {
1185         if (msglen < 8)
1186             return 0;
1187         BIO_indent(bio, indent, 80);
1188         BIO_printf(bio, "message_seq=%d, fragment_offset=%d, "
1189                    "fragment_length=%d\n",
1190                    (msg[0] << 8) | msg[1],
1191                    (msg[2] << 16) | (msg[3] << 8) | msg[4],
1192                    (msg[5] << 16) | (msg[6] << 8) | msg[7]);
1193         msg += 8;
1194         msglen -= 8;
1195     }
1196     if (msglen < hlen)
1197         return 0;
1198     switch (htype) {
1199     case SSL3_MT_CLIENT_HELLO:
1200         if (!ssl_print_client_hello(bio, ssl, indent + 2, msg, msglen))
1201             return 0;
1202         break;
1203
1204     case DTLS1_MT_HELLO_VERIFY_REQUEST:
1205         if (!dtls_print_hello_vfyrequest(bio, indent + 2, msg, msglen))
1206             return 0;
1207         break;
1208
1209     case SSL3_MT_SERVER_HELLO:
1210         if (!ssl_print_server_hello(bio, indent + 2, msg, msglen))
1211             return 0;
1212         break;
1213
1214     case SSL3_MT_SERVER_KEY_EXCHANGE:
1215         if (!ssl_print_server_keyex(bio, indent + 2, ssl, msg, msglen))
1216             return 0;
1217         break;
1218
1219     case SSL3_MT_CLIENT_KEY_EXCHANGE:
1220         if (!ssl_print_client_keyex(bio, indent + 2, ssl, msg, msglen))
1221             return 0;
1222         break;
1223
1224     case SSL3_MT_CERTIFICATE:
1225         if (!ssl_print_certificates(bio, indent + 2, msg, msglen))
1226             return 0;
1227         break;
1228
1229     case SSL3_MT_CERTIFICATE_VERIFY:
1230         if (!ssl_print_signature(bio, indent + 2, ssl, &msg, &msglen))
1231             return 0;
1232         break;
1233
1234     case SSL3_MT_CERTIFICATE_REQUEST:
1235         if (!ssl_print_cert_request(bio, indent + 2, ssl, msg, msglen))
1236             return 0;
1237         break;
1238
1239     case SSL3_MT_FINISHED:
1240         ssl_print_hex(bio, indent + 2, "verify_data", msg, msglen);
1241         break;
1242
1243     case SSL3_MT_SERVER_DONE:
1244         if (msglen != 0)
1245             ssl_print_hex(bio, indent + 2, "unexpected value", msg, msglen);
1246         break;
1247
1248     case SSL3_MT_NEWSESSION_TICKET:
1249         if (!ssl_print_ticket(bio, indent + 2, msg, msglen))
1250             return 0;
1251         break;
1252
1253     default:
1254         BIO_indent(bio, indent + 2, 80);
1255         BIO_puts(bio, "Unsupported, hex dump follows:\n");
1256         BIO_dump_indent(bio, (const char *)msg, msglen, indent + 4);
1257     }
1258     return 1;
1259 }
1260
1261 const char *SSL_CIPHER_standard_name(const SSL_CIPHER *c)
1262 {
1263     return ssl_trace_str(c->id & 0xFFFF, ssl_ciphers_tbl);
1264 }
1265
1266 void SSL_trace(int write_p, int version, int content_type,
1267                const void *buf, size_t msglen, SSL *ssl, void *arg)
1268 {
1269     const unsigned char *msg = buf;
1270     BIO *bio = arg;
1271
1272     if (write_p == 2) {
1273         BIO_puts(bio, "Session ");
1274         ssl_print_hex(bio, 0,
1275                       ssl_trace_str(content_type, ssl_crypto_tbl), msg, msglen);
1276         return;
1277     }
1278     switch (content_type) {
1279     case SSL3_RT_HEADER:
1280         {
1281             int hvers = msg[1] << 8 | msg[2];
1282             BIO_puts(bio, write_p ? "Sent" : "Received");
1283             BIO_printf(bio, " Record\nHeader:\n  Version = %s (0x%x)\n",
1284                        ssl_trace_str(hvers, ssl_version_tbl), hvers);
1285             if (SSL_IS_DTLS(ssl)) {
1286                 BIO_printf(bio,
1287                            "  epoch=%d, sequence_number=%04x%04x%04x\n",
1288                            (msg[3] << 8 | msg[4]),
1289                            (msg[5] << 8 | msg[6]),
1290                            (msg[7] << 8 | msg[8]), (msg[9] << 8 | msg[10]));
1291             }
1292
1293             BIO_printf(bio, "  Content Type = %s (%d)\n  Length = %d",
1294                        ssl_trace_str(msg[0], ssl_content_tbl), msg[0],
1295                        msg[msglen - 2] << 8 | msg[msglen - 1]);
1296         }
1297         break;
1298     case SSL3_RT_HANDSHAKE:
1299         if (!ssl_print_handshake(bio, ssl, msg, msglen, 4))
1300             BIO_printf(bio, "Message length parse error!\n");
1301         break;
1302
1303     case SSL3_RT_CHANGE_CIPHER_SPEC:
1304         if (msglen == 1 && msg[0] == 1)
1305             BIO_puts(bio, "    change_cipher_spec (1)\n");
1306         else
1307             ssl_print_hex(bio, 4, "unknown value", msg, msglen);
1308         break;
1309
1310     case SSL3_RT_ALERT:
1311         if (msglen != 2)
1312             BIO_puts(bio, "    Illegal Alert Length\n");
1313         else {
1314             BIO_printf(bio, "    Level=%s(%d), description=%s(%d)\n",
1315                        SSL_alert_type_string_long(msg[0] << 8),
1316                        msg[0], SSL_alert_desc_string_long(msg[1]), msg[1]);
1317         }
1318
1319     }
1320
1321     BIO_puts(bio, "\n");
1322 }
1323
1324 #endif