ssl/t1_trce.c

   1 /*
   2  * Copyright 2012-2018 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, const ssl_trace_tbl *tbl,
  29                                     size_t ntbl)
  30 {
  31     size_t i;
  32
  33     for (i = 0; i < ntbl; i++, tbl++) {
  34         if (tbl->num == val)
  35             return tbl->name;
  36     }
  37     return "UNKNOWN";
  38 }
  39
  40 static int do_ssl_trace_list(BIO *bio, int indent,
  41                              const unsigned char *msg, size_t msglen,
  42                              size_t vlen, const ssl_trace_tbl *tbl, size_t ntbl)
  43 {
  44     int val;
  45
  46     if (msglen % vlen)
  47         return 0;
  48     while (msglen) {
  49         val = msg[0];
  50         if (vlen == 2)
  51             val = (val << 8) | msg[1];
  52         BIO_indent(bio, indent, 80);
  53         BIO_printf(bio, "%s (%d)\n", do_ssl_trace_str(val, tbl, ntbl), val);
  54         msg += vlen;
  55         msglen -= vlen;
  56     }
  57     return 1;
  58 }
  59
  60 /* Version number */
  61
  62 static const ssl_trace_tbl ssl_version_tbl[] = {
  63     {SSL3_VERSION, "SSL 3.0"},
  64     {TLS1_VERSION, "TLS 1.0"},
  65     {TLS1_1_VERSION, "TLS 1.1"},
  66     {TLS1_2_VERSION, "TLS 1.2"},
  67     {TLS1_3_VERSION, "TLS 1.3"},
  68     /* TODO(TLS1.3): Remove this line before release */
  69     {TLS1_3_VERSION_DRAFT, TLS1_3_VERSION_DRAFT_TXT},
  70     {DTLS1_VERSION, "DTLS 1.0"},
  71     {DTLS1_2_VERSION, "DTLS 1.2"},
  72     {DTLS1_BAD_VER, "DTLS 1.0 (bad)"}
  73 };
  74
  75 static const ssl_trace_tbl ssl_content_tbl[] = {
  76     {SSL3_RT_CHANGE_CIPHER_SPEC, "ChangeCipherSpec"},
  77     {SSL3_RT_ALERT, "Alert"},
  78     {SSL3_RT_HANDSHAKE, "Handshake"},
  79     {SSL3_RT_APPLICATION_DATA, "ApplicationData"},
  80 };
  81
  82 /* Handshake types */
  83 static const ssl_trace_tbl ssl_handshake_tbl[] = {
  84     {SSL3_MT_HELLO_REQUEST, "HelloRequest"},
  85     {SSL3_MT_CLIENT_HELLO, "ClientHello"},
  86     {SSL3_MT_SERVER_HELLO, "ServerHello"},
  87     {DTLS1_MT_HELLO_VERIFY_REQUEST, "HelloVerifyRequest"},
  88     {SSL3_MT_NEWSESSION_TICKET, "NewSessionTicket"},
  89     {SSL3_MT_END_OF_EARLY_DATA, "EndOfEarlyData"},
  90     {SSL3_MT_ENCRYPTED_EXTENSIONS, "EncryptedExtensions"},
  91     {SSL3_MT_CERTIFICATE, "Certificate"},
  92     {SSL3_MT_SERVER_KEY_EXCHANGE, "ServerKeyExchange"},
  93     {SSL3_MT_CERTIFICATE_REQUEST, "CertificateRequest"},
  94     {SSL3_MT_SERVER_DONE, "ServerHelloDone"},
  95     {SSL3_MT_CERTIFICATE_VERIFY, "CertificateVerify"},
  96     {SSL3_MT_CLIENT_KEY_EXCHANGE, "ClientKeyExchange"},
  97     {SSL3_MT_CERTIFICATE_STATUS, "CertificateStatus"},
  98     {SSL3_MT_CLIENT_KEY_EXCHANGE, "ClientKeyExchange"},
  99     {SSL3_MT_FINISHED, "Finished"},
 100     {SSL3_MT_CERTIFICATE_STATUS, "CertificateStatus"},
 101     {SSL3_MT_KEY_UPDATE, "KeyUpdate"},
 102 # ifndef OPENSSL_NO_NEXTPROTONEG
 103     {SSL3_MT_NEXT_PROTO, "NextProto"},
 104 # endif
 105     {SSL3_MT_MESSAGE_HASH, "MessageHash"}
 106 };
 107
 108 /* Cipher suites */
 109 static const ssl_trace_tbl ssl_ciphers_tbl[] = {
 110     {0x0000, "TLS_NULL_WITH_NULL_NULL"},
 111     {0x0001, "TLS_RSA_WITH_NULL_MD5"},
 112     {0x0002, "TLS_RSA_WITH_NULL_SHA"},
 113     {0x0003, "TLS_RSA_EXPORT_WITH_RC4_40_MD5"},
 114     {0x0004, "TLS_RSA_WITH_RC4_128_MD5"},
 115     {0x0005, "TLS_RSA_WITH_RC4_128_SHA"},
 116     {0x0006, "TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5"},
 117     {0x0007, "TLS_RSA_WITH_IDEA_CBC_SHA"},
 118     {0x0008, "TLS_RSA_EXPORT_WITH_DES40_CBC_SHA"},
 119     {0x0009, "TLS_RSA_WITH_DES_CBC_SHA"},
 120     {0x000A, "TLS_RSA_WITH_3DES_EDE_CBC_SHA"},
 121     {0x000B, "TLS_DH_DSS_EXPORT_WITH_DES40_CBC_SHA"},
 122     {0x000C, "TLS_DH_DSS_WITH_DES_CBC_SHA"},
 123     {0x000D, "TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA"},
 124     {0x000E, "TLS_DH_RSA_EXPORT_WITH_DES40_CBC_SHA"},
 125     {0x000F, "TLS_DH_RSA_WITH_DES_CBC_SHA"},
 126     {0x0010, "TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA"},
 127     {0x0011, "TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA"},
 128     {0x0012, "TLS_DHE_DSS_WITH_DES_CBC_SHA"},
 129     {0x0013, "TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA"},
 130     {0x0014, "TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA"},
 131     {0x0015, "TLS_DHE_RSA_WITH_DES_CBC_SHA"},
 132     {0x0016, "TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA"},
 133     {0x0017, "TLS_DH_anon_EXPORT_WITH_RC4_40_MD5"},
 134     {0x0018, "TLS_DH_anon_WITH_RC4_128_MD5"},
 135     {0x0019, "TLS_DH_anon_EXPORT_WITH_DES40_CBC_SHA"},
 136     {0x001A, "TLS_DH_anon_WITH_DES_CBC_SHA"},
 137     {0x001B, "TLS_DH_anon_WITH_3DES_EDE_CBC_SHA"},
 138     {0x001D, "SSL_FORTEZZA_KEA_WITH_FORTEZZA_CBC_SHA"},
 139     {0x001E, "SSL_FORTEZZA_KEA_WITH_RC4_128_SHA"},
 140     {0x001F, "TLS_KRB5_WITH_3DES_EDE_CBC_SHA"},
 141     {0x0020, "TLS_KRB5_WITH_RC4_128_SHA"},
 142     {0x0021, "TLS_KRB5_WITH_IDEA_CBC_SHA"},
 143     {0x0022, "TLS_KRB5_WITH_DES_CBC_MD5"},
 144     {0x0023, "TLS_KRB5_WITH_3DES_EDE_CBC_MD5"},
 145     {0x0024, "TLS_KRB5_WITH_RC4_128_MD5"},
 146     {0x0025, "TLS_KRB5_WITH_IDEA_CBC_MD5"},
 147     {0x0026, "TLS_KRB5_EXPORT_WITH_DES_CBC_40_SHA"},
 148     {0x0027, "TLS_KRB5_EXPORT_WITH_RC2_CBC_40_SHA"},
 149     {0x0028, "TLS_KRB5_EXPORT_WITH_RC4_40_SHA"},
 150     {0x0029, "TLS_KRB5_EXPORT_WITH_DES_CBC_40_MD5"},
 151     {0x002A, "TLS_KRB5_EXPORT_WITH_RC2_CBC_40_MD5"},
 152     {0x002B, "TLS_KRB5_EXPORT_WITH_RC4_40_MD5"},
 153     {0x002C, "TLS_PSK_WITH_NULL_SHA"},
 154     {0x002D, "TLS_DHE_PSK_WITH_NULL_SHA"},
 155     {0x002E, "TLS_RSA_PSK_WITH_NULL_SHA"},
 156     {0x002F, "TLS_RSA_WITH_AES_128_CBC_SHA"},
 157     {0x0030, "TLS_DH_DSS_WITH_AES_128_CBC_SHA"},
 158     {0x0031, "TLS_DH_RSA_WITH_AES_128_CBC_SHA"},
 159     {0x0032, "TLS_DHE_DSS_WITH_AES_128_CBC_SHA"},
 160     {0x0033, "TLS_DHE_RSA_WITH_AES_128_CBC_SHA"},
 161     {0x0034, "TLS_DH_anon_WITH_AES_128_CBC_SHA"},
 162     {0x0035, "TLS_RSA_WITH_AES_256_CBC_SHA"},
 163     {0x0036, "TLS_DH_DSS_WITH_AES_256_CBC_SHA"},
 164     {0x0037, "TLS_DH_RSA_WITH_AES_256_CBC_SHA"},
 165     {0x0038, "TLS_DHE_DSS_WITH_AES_256_CBC_SHA"},
 166     {0x0039, "TLS_DHE_RSA_WITH_AES_256_CBC_SHA"},
 167     {0x003A, "TLS_DH_anon_WITH_AES_256_CBC_SHA"},
 168     {0x003B, "TLS_RSA_WITH_NULL_SHA256"},
 169     {0x003C, "TLS_RSA_WITH_AES_128_CBC_SHA256"},
 170     {0x003D, "TLS_RSA_WITH_AES_256_CBC_SHA256"},
 171     {0x003E, "TLS_DH_DSS_WITH_AES_128_CBC_SHA256"},
 172     {0x003F, "TLS_DH_RSA_WITH_AES_128_CBC_SHA256"},
 173     {0x0040, "TLS_DHE_DSS_WITH_AES_128_CBC_SHA256"},
 174     {0x0041, "TLS_RSA_WITH_CAMELLIA_128_CBC_SHA"},
 175     {0x0042, "TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA"},
 176     {0x0043, "TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA"},
 177     {0x0044, "TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA"},
 178     {0x0045, "TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA"},
 179     {0x0046, "TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA"},
 180     {0x0067, "TLS_DHE_RSA_WITH_AES_128_CBC_SHA256"},
 181     {0x0068, "TLS_DH_DSS_WITH_AES_256_CBC_SHA256"},
 182     {0x0069, "TLS_DH_RSA_WITH_AES_256_CBC_SHA256"},
 183     {0x006A, "TLS_DHE_DSS_WITH_AES_256_CBC_SHA256"},
 184     {0x006B, "TLS_DHE_RSA_WITH_AES_256_CBC_SHA256"},
 185     {0x006C, "TLS_DH_anon_WITH_AES_128_CBC_SHA256"},
 186     {0x006D, "TLS_DH_anon_WITH_AES_256_CBC_SHA256"},
 187     {0x0084, "TLS_RSA_WITH_CAMELLIA_256_CBC_SHA"},
 188     {0x0085, "TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA"},
 189     {0x0086, "TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA"},
 190     {0x0087, "TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA"},
 191     {0x0088, "TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA"},
 192     {0x0089, "TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA"},
 193     {0x008A, "TLS_PSK_WITH_RC4_128_SHA"},
 194     {0x008B, "TLS_PSK_WITH_3DES_EDE_CBC_SHA"},
 195     {0x008C, "TLS_PSK_WITH_AES_128_CBC_SHA"},
 196     {0x008D, "TLS_PSK_WITH_AES_256_CBC_SHA"},
 197     {0x008E, "TLS_DHE_PSK_WITH_RC4_128_SHA"},
 198     {0x008F, "TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA"},
 199     {0x0090, "TLS_DHE_PSK_WITH_AES_128_CBC_SHA"},
 200     {0x0091, "TLS_DHE_PSK_WITH_AES_256_CBC_SHA"},
 201     {0x0092, "TLS_RSA_PSK_WITH_RC4_128_SHA"},
 202     {0x0093, "TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA"},
 203     {0x0094, "TLS_RSA_PSK_WITH_AES_128_CBC_SHA"},
 204     {0x0095, "TLS_RSA_PSK_WITH_AES_256_CBC_SHA"},
 205     {0x0096, "TLS_RSA_WITH_SEED_CBC_SHA"},
 206     {0x0097, "TLS_DH_DSS_WITH_SEED_CBC_SHA"},
 207     {0x0098, "TLS_DH_RSA_WITH_SEED_CBC_SHA"},
 208     {0x0099, "TLS_DHE_DSS_WITH_SEED_CBC_SHA"},
 209     {0x009A, "TLS_DHE_RSA_WITH_SEED_CBC_SHA"},
 210     {0x009B, "TLS_DH_anon_WITH_SEED_CBC_SHA"},
 211     {0x009C, "TLS_RSA_WITH_AES_128_GCM_SHA256"},
 212     {0x009D, "TLS_RSA_WITH_AES_256_GCM_SHA384"},
 213     {0x009E, "TLS_DHE_RSA_WITH_AES_128_GCM_SHA256"},
 214     {0x009F, "TLS_DHE_RSA_WITH_AES_256_GCM_SHA384"},
 215     {0x00A0, "TLS_DH_RSA_WITH_AES_128_GCM_SHA256"},
 216     {0x00A1, "TLS_DH_RSA_WITH_AES_256_GCM_SHA384"},
 217     {0x00A2, "TLS_DHE_DSS_WITH_AES_128_GCM_SHA256"},
 218     {0x00A3, "TLS_DHE_DSS_WITH_AES_256_GCM_SHA384"},
 219     {0x00A4, "TLS_DH_DSS_WITH_AES_128_GCM_SHA256"},
 220     {0x00A5, "TLS_DH_DSS_WITH_AES_256_GCM_SHA384"},
 221     {0x00A6, "TLS_DH_anon_WITH_AES_128_GCM_SHA256"},
 222     {0x00A7, "TLS_DH_anon_WITH_AES_256_GCM_SHA384"},
 223     {0x00A8, "TLS_PSK_WITH_AES_128_GCM_SHA256"},
 224     {0x00A9, "TLS_PSK_WITH_AES_256_GCM_SHA384"},
 225     {0x00AA, "TLS_DHE_PSK_WITH_AES_128_GCM_SHA256"},
 226     {0x00AB, "TLS_DHE_PSK_WITH_AES_256_GCM_SHA384"},
 227     {0x00AC, "TLS_RSA_PSK_WITH_AES_128_GCM_SHA256"},
 228     {0x00AD, "TLS_RSA_PSK_WITH_AES_256_GCM_SHA384"},
 229     {0x00AE, "TLS_PSK_WITH_AES_128_CBC_SHA256"},
 230     {0x00AF, "TLS_PSK_WITH_AES_256_CBC_SHA384"},
 231     {0x00B0, "TLS_PSK_WITH_NULL_SHA256"},
 232     {0x00B1, "TLS_PSK_WITH_NULL_SHA384"},
 233     {0x00B2, "TLS_DHE_PSK_WITH_AES_128_CBC_SHA256"},
 234     {0x00B3, "TLS_DHE_PSK_WITH_AES_256_CBC_SHA384"},
 235     {0x00B4, "TLS_DHE_PSK_WITH_NULL_SHA256"},
 236     {0x00B5, "TLS_DHE_PSK_WITH_NULL_SHA384"},
 237     {0x00B6, "TLS_RSA_PSK_WITH_AES_128_CBC_SHA256"},
 238     {0x00B7, "TLS_RSA_PSK_WITH_AES_256_CBC_SHA384"},
 239     {0x00B8, "TLS_RSA_PSK_WITH_NULL_SHA256"},
 240     {0x00B9, "TLS_RSA_PSK_WITH_NULL_SHA384"},
 241     {0x00BA, "TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256"},
 242     {0x00BB, "TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA256"},
 243     {0x00BC, "TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA256"},
 244     {0x00BD, "TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA256"},
 245     {0x00BE, "TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256"},
 246     {0x00BF, "TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA256"},
 247     {0x00C0, "TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256"},
 248     {0x00C1, "TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA256"},
 249     {0x00C2, "TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA256"},
 250     {0x00C3, "TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA256"},
 251     {0x00C4, "TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256"},
 252     {0x00C5, "TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA256"},
 253     {0x00FF, "TLS_EMPTY_RENEGOTIATION_INFO_SCSV"},
 254     {0x5600, "TLS_FALLBACK_SCSV"},
 255     {0xC001, "TLS_ECDH_ECDSA_WITH_NULL_SHA"},
 256     {0xC002, "TLS_ECDH_ECDSA_WITH_RC4_128_SHA"},
 257     {0xC003, "TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA"},
 258     {0xC004, "TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA"},
 259     {0xC005, "TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA"},
 260     {0xC006, "TLS_ECDHE_ECDSA_WITH_NULL_SHA"},
 261     {0xC007, "TLS_ECDHE_ECDSA_WITH_RC4_128_SHA"},
 262     {0xC008, "TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA"},
 263     {0xC009, "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA"},
 264     {0xC00A, "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA"},
 265     {0xC00B, "TLS_ECDH_RSA_WITH_NULL_SHA"},
 266     {0xC00C, "TLS_ECDH_RSA_WITH_RC4_128_SHA"},
 267     {0xC00D, "TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA"},
 268     {0xC00E, "TLS_ECDH_RSA_WITH_AES_128_CBC_SHA"},
 269     {0xC00F, "TLS_ECDH_RSA_WITH_AES_256_CBC_SHA"},
 270     {0xC010, "TLS_ECDHE_RSA_WITH_NULL_SHA"},
 271     {0xC011, "TLS_ECDHE_RSA_WITH_RC4_128_SHA"},
 272     {0xC012, "TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA"},
 273     {0xC013, "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA"},
 274     {0xC014, "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA"},
 275     {0xC015, "TLS_ECDH_anon_WITH_NULL_SHA"},
 276     {0xC016, "TLS_ECDH_anon_WITH_RC4_128_SHA"},
 277     {0xC017, "TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA"},
 278     {0xC018, "TLS_ECDH_anon_WITH_AES_128_CBC_SHA"},
 279     {0xC019, "TLS_ECDH_anon_WITH_AES_256_CBC_SHA"},
 280     {0xC01A, "TLS_SRP_SHA_WITH_3DES_EDE_CBC_SHA"},
 281     {0xC01B, "TLS_SRP_SHA_RSA_WITH_3DES_EDE_CBC_SHA"},
 282     {0xC01C, "TLS_SRP_SHA_DSS_WITH_3DES_EDE_CBC_SHA"},
 283     {0xC01D, "TLS_SRP_SHA_WITH_AES_128_CBC_SHA"},
 284     {0xC01E, "TLS_SRP_SHA_RSA_WITH_AES_128_CBC_SHA"},
 285     {0xC01F, "TLS_SRP_SHA_DSS_WITH_AES_128_CBC_SHA"},
 286     {0xC020, "TLS_SRP_SHA_WITH_AES_256_CBC_SHA"},
 287     {0xC021, "TLS_SRP_SHA_RSA_WITH_AES_256_CBC_SHA"},
 288     {0xC022, "TLS_SRP_SHA_DSS_WITH_AES_256_CBC_SHA"},
 289     {0xC023, "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256"},
 290     {0xC024, "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384"},
 291     {0xC025, "TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256"},
 292     {0xC026, "TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384"},
 293     {0xC027, "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256"},
 294     {0xC028, "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384"},
 295     {0xC029, "TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256"},
 296     {0xC02A, "TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384"},
 297     {0xC02B, "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256"},
 298     {0xC02C, "TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384"},
 299     {0xC02D, "TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256"},
 300     {0xC02E, "TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384"},
 301     {0xC02F, "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256"},
 302     {0xC030, "TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384"},
 303     {0xC031, "TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256"},
 304     {0xC032, "TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384"},
 305     {0xC033, "TLS_ECDHE_PSK_WITH_RC4_128_SHA"},
 306     {0xC034, "TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA"},
 307     {0xC035, "TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA"},
 308     {0xC036, "TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA"},
 309     {0xC037, "TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256"},
 310     {0xC038, "TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384"},
 311     {0xC039, "TLS_ECDHE_PSK_WITH_NULL_SHA"},
 312     {0xC03A, "TLS_ECDHE_PSK_WITH_NULL_SHA256"},
 313     {0xC03B, "TLS_ECDHE_PSK_WITH_NULL_SHA384"},
 314     {0xC03C, "TLS_RSA_WITH_ARIA_128_CBC_SHA256"},
 315     {0xC03D, "TLS_RSA_WITH_ARIA_256_CBC_SHA384"},
 316     {0xC03E, "TLS_DH_DSS_WITH_ARIA_128_CBC_SHA256"},
 317     {0xC03F, "TLS_DH_DSS_WITH_ARIA_256_CBC_SHA384"},
 318     {0xC040, "TLS_DH_RSA_WITH_ARIA_128_CBC_SHA256"},
 319     {0xC041, "TLS_DH_RSA_WITH_ARIA_256_CBC_SHA384"},
 320     {0xC042, "TLS_DHE_DSS_WITH_ARIA_128_CBC_SHA256"},
 321     {0xC043, "TLS_DHE_DSS_WITH_ARIA_256_CBC_SHA384"},
 322     {0xC044, "TLS_DHE_RSA_WITH_ARIA_128_CBC_SHA256"},
 323     {0xC045, "TLS_DHE_RSA_WITH_ARIA_256_CBC_SHA384"},
 324     {0xC046, "TLS_DH_anon_WITH_ARIA_128_CBC_SHA256"},
 325     {0xC047, "TLS_DH_anon_WITH_ARIA_256_CBC_SHA384"},
 326     {0xC048, "TLS_ECDHE_ECDSA_WITH_ARIA_128_CBC_SHA256"},
 327     {0xC049, "TLS_ECDHE_ECDSA_WITH_ARIA_256_CBC_SHA384"},
 328     {0xC04A, "TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256"},
 329     {0xC04B, "TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384"},
 330     {0xC04C, "TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256"},
 331     {0xC04D, "TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384"},
 332     {0xC04E, "TLS_ECDH_RSA_WITH_ARIA_128_CBC_SHA256"},
 333     {0xC04F, "TLS_ECDH_RSA_WITH_ARIA_256_CBC_SHA384"},
 334     {0xC050, "TLS_RSA_WITH_ARIA_128_GCM_SHA256"},
 335     {0xC051, "TLS_RSA_WITH_ARIA_256_GCM_SHA384"},
 336     {0xC052, "TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256"},
 337     {0xC053, "TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384"},
 338     {0xC054, "TLS_DH_RSA_WITH_ARIA_128_GCM_SHA256"},
 339     {0xC055, "TLS_DH_RSA_WITH_ARIA_256_GCM_SHA384"},
 340     {0xC056, "TLS_DHE_DSS_WITH_ARIA_128_GCM_SHA256"},
 341     {0xC057, "TLS_DHE_DSS_WITH_ARIA_256_GCM_SHA384"},
 342     {0xC058, "TLS_DH_DSS_WITH_ARIA_128_GCM_SHA256"},
 343     {0xC059, "TLS_DH_DSS_WITH_ARIA_256_GCM_SHA384"},
 344     {0xC05A, "TLS_DH_anon_WITH_ARIA_128_GCM_SHA256"},
 345     {0xC05B, "TLS_DH_anon_WITH_ARIA_256_GCM_SHA384"},
 346     {0xC05C, "TLS_ECDHE_ECDSA_WITH_ARIA_128_GCM_SHA256"},
 347     {0xC05D, "TLS_ECDHE_ECDSA_WITH_ARIA_256_GCM_SHA384"},
 348     {0xC05E, "TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256"},
 349     {0xC05F, "TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384"},
 350     {0xC060, "TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256"},
 351     {0xC061, "TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384"},
 352     {0xC062, "TLS_ECDH_RSA_WITH_ARIA_128_GCM_SHA256"},
 353     {0xC063, "TLS_ECDH_RSA_WITH_ARIA_256_GCM_SHA384"},
 354     {0xC064, "TLS_PSK_WITH_ARIA_128_CBC_SHA256"},
 355     {0xC065, "TLS_PSK_WITH_ARIA_256_CBC_SHA384"},
 356     {0xC066, "TLS_DHE_PSK_WITH_ARIA_128_CBC_SHA256"},
 357     {0xC067, "TLS_DHE_PSK_WITH_ARIA_256_CBC_SHA384"},
 358     {0xC068, "TLS_RSA_PSK_WITH_ARIA_128_CBC_SHA256"},
 359     {0xC069, "TLS_RSA_PSK_WITH_ARIA_256_CBC_SHA384"},
 360     {0xC06A, "TLS_PSK_WITH_ARIA_128_GCM_SHA256"},
 361     {0xC06B, "TLS_PSK_WITH_ARIA_256_GCM_SHA384"},
 362     {0xC06C, "TLS_DHE_PSK_WITH_ARIA_128_GCM_SHA256"},
 363     {0xC06D, "TLS_DHE_PSK_WITH_ARIA_256_GCM_SHA384"},
 364     {0xC06E, "TLS_RSA_PSK_WITH_ARIA_128_GCM_SHA256"},
 365     {0xC06F, "TLS_RSA_PSK_WITH_ARIA_256_GCM_SHA384"},
 366     {0xC070, "TLS_ECDHE_PSK_WITH_ARIA_128_CBC_SHA256"},
 367     {0xC071, "TLS_ECDHE_PSK_WITH_ARIA_256_CBC_SHA384"},
 368     {0xC072, "TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256"},
 369     {0xC073, "TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384"},
 370     {0xC074, "TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256"},
 371     {0xC075, "TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384"},
 372     {0xC076, "TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256"},
 373     {0xC077, "TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384"},
 374     {0xC078, "TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256"},
 375     {0xC079, "TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384"},
 376     {0xC07A, "TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256"},
 377     {0xC07B, "TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384"},
 378     {0xC07C, "TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256"},
 379     {0xC07D, "TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384"},
 380     {0xC07E, "TLS_DH_RSA_WITH_CAMELLIA_128_GCM_SHA256"},
 381     {0xC07F, "TLS_DH_RSA_WITH_CAMELLIA_256_GCM_SHA384"},
 382     {0xC080, "TLS_DHE_DSS_WITH_CAMELLIA_128_GCM_SHA256"},
 383     {0xC081, "TLS_DHE_DSS_WITH_CAMELLIA_256_GCM_SHA384"},
 384     {0xC082, "TLS_DH_DSS_WITH_CAMELLIA_128_GCM_SHA256"},
 385     {0xC083, "TLS_DH_DSS_WITH_CAMELLIA_256_GCM_SHA384"},
 386     {0xC084, "TLS_DH_anon_WITH_CAMELLIA_128_GCM_SHA256"},
 387     {0xC085, "TLS_DH_anon_WITH_CAMELLIA_256_GCM_SHA384"},
 388     {0xC086, "TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256"},
 389     {0xC087, "TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384"},
 390     {0xC088, "TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256"},
 391     {0xC089, "TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384"},
 392     {0xC08A, "TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256"},
 393     {0xC08B, "TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384"},
 394     {0xC08C, "TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256"},
 395     {0xC08D, "TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384"},
 396     {0xC08E, "TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256"},
 397     {0xC08F, "TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384"},
 398     {0xC090, "TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256"},
 399     {0xC091, "TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384"},
 400     {0xC092, "TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256"},
 401     {0xC093, "TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384"},
 402     {0xC094, "TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256"},
 403     {0xC095, "TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384"},
 404     {0xC096, "TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256"},
 405     {0xC097, "TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384"},
 406     {0xC098, "TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256"},
 407     {0xC099, "TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384"},
 408     {0xC09A, "TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256"},
 409     {0xC09B, "TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384"},
 410     {0xC09C, "TLS_RSA_WITH_AES_128_CCM"},
 411     {0xC09D, "TLS_RSA_WITH_AES_256_CCM"},
 412     {0xC09E, "TLS_DHE_RSA_WITH_AES_128_CCM"},
 413     {0xC09F, "TLS_DHE_RSA_WITH_AES_256_CCM"},
 414     {0xC0A0, "TLS_RSA_WITH_AES_128_CCM_8"},
 415     {0xC0A1, "TLS_RSA_WITH_AES_256_CCM_8"},
 416     {0xC0A2, "TLS_DHE_RSA_WITH_AES_128_CCM_8"},
 417     {0xC0A3, "TLS_DHE_RSA_WITH_AES_256_CCM_8"},
 418     {0xC0A4, "TLS_PSK_WITH_AES_128_CCM"},
 419     {0xC0A5, "TLS_PSK_WITH_AES_256_CCM"},
 420     {0xC0A6, "TLS_DHE_PSK_WITH_AES_128_CCM"},
 421     {0xC0A7, "TLS_DHE_PSK_WITH_AES_256_CCM"},
 422     {0xC0A8, "TLS_PSK_WITH_AES_128_CCM_8"},
 423     {0xC0A9, "TLS_PSK_WITH_AES_256_CCM_8"},
 424     {0xC0AA, "TLS_PSK_DHE_WITH_AES_128_CCM_8"},
 425     {0xC0AB, "TLS_PSK_DHE_WITH_AES_256_CCM_8"},
 426     {0xC0AC, "TLS_ECDHE_ECDSA_WITH_AES_128_CCM"},
 427     {0xC0AD, "TLS_ECDHE_ECDSA_WITH_AES_256_CCM"},
 428     {0xC0AE, "TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8"},
 429     {0xC0AF, "TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8"},
 430     {0xCCA8, "TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256"},
 431     {0xCCA9, "TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256"},
 432     {0xCCAA, "TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256"},
 433     {0xCCAB, "TLS_PSK_WITH_CHACHA20_POLY1305_SHA256"},
 434     {0xCCAC, "TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256"},
 435     {0xCCAD, "TLS_DHE_PSK_WITH_CHACHA20_POLY1305_SHA256"},
 436     {0xCCAE, "TLS_RSA_PSK_WITH_CHACHA20_POLY1305_SHA256"},
 437     {0x1301, "TLS_AES_128_GCM_SHA256"},
 438     {0x1302, "TLS_AES_256_GCM_SHA384"},
 439     {0x1303, "TLS_CHACHA20_POLY1305_SHA256"},
 440     {0x1304, "TLS_AES_128_CCM_SHA256"},
 441     {0x1305, "TLS_AES_128_CCM_8_SHA256"},
 442     {0xFEFE, "SSL_RSA_FIPS_WITH_DES_CBC_SHA"},
 443     {0xFEFF, "SSL_RSA_FIPS_WITH_3DES_EDE_CBC_SHA"},
 444 };
 445
 446 /* Compression methods */
 447 static const ssl_trace_tbl ssl_comp_tbl[] = {
 448     {0x0000, "No Compression"},
 449     {0x0001, "Zlib Compression"}
 450 };
 451
 452 /* Extensions */
 453 static const ssl_trace_tbl ssl_exts_tbl[] = {
 454     {TLSEXT_TYPE_server_name, "server_name"},
 455     {TLSEXT_TYPE_max_fragment_length, "max_fragment_length"},
 456     {TLSEXT_TYPE_client_certificate_url, "client_certificate_url"},
 457     {TLSEXT_TYPE_trusted_ca_keys, "trusted_ca_keys"},
 458     {TLSEXT_TYPE_truncated_hmac, "truncated_hmac"},
 459     {TLSEXT_TYPE_status_request, "status_request"},
 460     {TLSEXT_TYPE_user_mapping, "user_mapping"},
 461     {TLSEXT_TYPE_client_authz, "client_authz"},
 462     {TLSEXT_TYPE_server_authz, "server_authz"},
 463     {TLSEXT_TYPE_cert_type, "cert_type"},
 464     {TLSEXT_TYPE_key_share, "key_share"},
 465     {TLSEXT_TYPE_psk, "psk"},
 466     {TLSEXT_TYPE_psk_kex_modes, "psk_key_exchange_modes"},
 467     {TLSEXT_TYPE_supported_groups, "supported_groups"},
 468     {TLSEXT_TYPE_ec_point_formats, "ec_point_formats"},
 469     {TLSEXT_TYPE_srp, "srp"},
 470     {TLSEXT_TYPE_signature_algorithms, "signature_algorithms"},
 471     {TLSEXT_TYPE_use_srtp, "use_srtp"},
 472     {TLSEXT_TYPE_session_ticket, "session_ticket"},
 473     {TLSEXT_TYPE_supported_versions, "supported_versions"},
 474     {TLSEXT_TYPE_renegotiate, "renegotiate"},
 475 # ifndef OPENSSL_NO_NEXTPROTONEG
 476     {TLSEXT_TYPE_next_proto_neg, "next_proto_neg"},
 477 # endif
 478     {TLSEXT_TYPE_application_layer_protocol_negotiation,
 479      "application_layer_protocol_negotiation"},
 480     {TLSEXT_TYPE_signed_certificate_timestamp, "signed_certificate_timestamps"},
 481     {TLSEXT_TYPE_padding, "padding"},
 482     {TLSEXT_TYPE_encrypt_then_mac, "encrypt_then_mac"},
 483     {TLSEXT_TYPE_extended_master_secret, "extended_master_secret"},
 484     {TLSEXT_TYPE_early_data, "early_data"}
 485 };
 486
 487 static const ssl_trace_tbl ssl_groups_tbl[] = {
 488     {1, "sect163k1 (K-163)"},
 489     {2, "sect163r1"},
 490     {3, "sect163r2 (B-163)"},
 491     {4, "sect193r1"},
 492     {5, "sect193r2"},
 493     {6, "sect233k1 (K-233)"},
 494     {7, "sect233r1 (B-233)"},
 495     {8, "sect239k1"},
 496     {9, "sect283k1 (K-283)"},
 497     {10, "sect283r1 (B-283)"},
 498     {11, "sect409k1 (K-409)"},
 499     {12, "sect409r1 (B-409)"},
 500     {13, "sect571k1 (K-571)"},
 501     {14, "sect571r1 (B-571)"},
 502     {15, "secp160k1"},
 503     {16, "secp160r1"},
 504     {17, "secp160r2"},
 505     {18, "secp192k1"},
 506     {19, "secp192r1 (P-192)"},
 507     {20, "secp224k1"},
 508     {21, "secp224r1 (P-224)"},
 509     {22, "secp256k1"},
 510     {23, "secp256r1 (P-256)"},
 511     {24, "secp384r1 (P-384)"},
 512     {25, "secp521r1 (P-521)"},
 513     {26, "brainpoolP256r1"},
 514     {27, "brainpoolP384r1"},
 515     {28, "brainpoolP512r1"},
 516     {29, "ecdh_x25519"},
 517     {256, "ffdhe2048"},
 518     {257, "ffdhe3072"},
 519     {258, "ffdhe4096"},
 520     {259, "ffdhe6144"},
 521     {260, "ffdhe8192"},
 522     {0xFF01, "arbitrary_explicit_prime_curves"},
 523     {0xFF02, "arbitrary_explicit_char2_curves"}
 524 };
 525
 526 static const ssl_trace_tbl ssl_point_tbl[] = {
 527     {0, "uncompressed"},
 528     {1, "ansiX962_compressed_prime"},
 529     {2, "ansiX962_compressed_char2"}
 530 };
 531
 532 static const ssl_trace_tbl ssl_mfl_tbl[] = {
 533     {0, "disabled"},
 534     {1, "max_fragment_length := 2^9 (512 bytes)"},
 535     {2, "max_fragment_length := 2^10 (1024 bytes)"},
 536     {3, "max_fragment_length := 2^11 (2048 bytes)"},
 537     {4, "max_fragment_length := 2^12 (4096 bytes)"}
 538 };
 539
 540 static const ssl_trace_tbl ssl_sigalg_tbl[] = {
 541     {TLSEXT_SIGALG_ecdsa_secp256r1_sha256, "ecdsa_secp256r1_sha256"},
 542     {TLSEXT_SIGALG_ecdsa_secp384r1_sha384, "ecdsa_secp384r1_sha384"},
 543     {TLSEXT_SIGALG_ecdsa_secp521r1_sha512, "ecdsa_secp521r1_sha512"},
 544     {TLSEXT_SIGALG_ecdsa_sha224, "ecdsa_sha224"},
 545     {TLSEXT_SIGALG_ed25519, "ed25519"},
 546     {TLSEXT_SIGALG_ecdsa_sha1, "ecdsa_sha1"},
 547     {TLSEXT_SIGALG_rsa_pss_rsae_sha256, "rsa_pss_rsae_sha256"},
 548     {TLSEXT_SIGALG_rsa_pss_rsae_sha384, "rsa_pss_rsae_sha384"},
 549     {TLSEXT_SIGALG_rsa_pss_rsae_sha512, "rsa_pss_rsae_sha512"},
 550     {TLSEXT_SIGALG_rsa_pss_pss_sha256, "rsa_pss_pss_sha256"},
 551     {TLSEXT_SIGALG_rsa_pss_pss_sha384, "rsa_pss_pss_sha384"},
 552     {TLSEXT_SIGALG_rsa_pss_pss_sha512, "rsa_pss_pss_sha512"},
 553     {TLSEXT_SIGALG_rsa_pkcs1_sha256, "rsa_pkcs1_sha256"},
 554     {TLSEXT_SIGALG_rsa_pkcs1_sha384, "rsa_pkcs1_sha384"},
 555     {TLSEXT_SIGALG_rsa_pkcs1_sha512, "rsa_pkcs1_sha512"},
 556     {TLSEXT_SIGALG_rsa_pkcs1_sha224, "rsa_pkcs1_sha224"},
 557     {TLSEXT_SIGALG_rsa_pkcs1_sha1, "rsa_pkcs1_sha1"},
 558     {TLSEXT_SIGALG_dsa_sha256, "dsa_sha256"},
 559     {TLSEXT_SIGALG_dsa_sha384, "dsa_sha384"},
 560     {TLSEXT_SIGALG_dsa_sha512, "dsa_sha512"},
 561     {TLSEXT_SIGALG_dsa_sha224, "dsa_sha224"},
 562     {TLSEXT_SIGALG_dsa_sha1, "dsa_sha1"},
 563     {TLSEXT_SIGALG_gostr34102012_256_gostr34112012_256, "gost2012_256"},
 564     {TLSEXT_SIGALG_gostr34102012_512_gostr34112012_512, "gost2012_512"},
 565     {TLSEXT_SIGALG_gostr34102001_gostr3411, "gost2001_gost94"},
 566 };
 567
 568 static const ssl_trace_tbl ssl_ctype_tbl[] = {
 569     {1, "rsa_sign"},
 570     {2, "dss_sign"},
 571     {3, "rsa_fixed_dh"},
 572     {4, "dss_fixed_dh"},
 573     {5, "rsa_ephemeral_dh"},
 574     {6, "dss_ephemeral_dh"},
 575     {20, "fortezza_dms"},
 576     {64, "ecdsa_sign"},
 577     {65, "rsa_fixed_ecdh"},
 578     {66, "ecdsa_fixed_ecdh"}
 579 };
 580
 581 static const ssl_trace_tbl ssl_psk_kex_modes_tbl[] = {
 582     {TLSEXT_KEX_MODE_KE, "psk_ke"},
 583     {TLSEXT_KEX_MODE_KE_DHE, "psk_dhe_ke"}
 584 };
 585
 586 static const ssl_trace_tbl ssl_key_update_tbl[] = {
 587     {SSL_KEY_UPDATE_NOT_REQUESTED, "update_not_requested"},
 588     {SSL_KEY_UPDATE_REQUESTED, "update_requested"}
 589 };
 590
 591 static void ssl_print_hex(BIO *bio, int indent, const char *name,
 592                           const unsigned char *msg, size_t msglen)
 593 {
 594     size_t i;
 595
 596     BIO_indent(bio, indent, 80);
 597     BIO_printf(bio, "%s (len=%d): ", name, (int)msglen);
 598     for (i = 0; i < msglen; i++)
 599         BIO_printf(bio, "%02X", msg[i]);
 600     BIO_puts(bio, "\n");
 601 }
 602
 603 static int ssl_print_hexbuf(BIO *bio, int indent, const char *name, size_t nlen,
 604                             const unsigned char **pmsg, size_t *pmsglen)
 605 {
 606     size_t blen;
 607     const unsigned char *p = *pmsg;
 608
 609     if (*pmsglen < nlen)
 610         return 0;
 611     blen = p[0];
 612     if (nlen > 1)
 613         blen = (blen << 8) | p[1];
 614     if (*pmsglen < nlen + blen)
 615         return 0;
 616     p += nlen;
 617     ssl_print_hex(bio, indent, name, p, blen);
 618     *pmsg += blen + nlen;
 619     *pmsglen -= blen + nlen;
 620     return 1;
 621 }
 622
 623 static int ssl_print_version(BIO *bio, int indent, const char *name,
 624                              const unsigned char **pmsg, size_t *pmsglen,
 625                              unsigned int *version)
 626 {
 627     int vers;
 628
 629     if (*pmsglen < 2)
 630         return 0;
 631     vers = ((*pmsg)[0] << 8) | (*pmsg)[1];
 632     if (version != NULL) {
 633         /* TODO(TLS1.3): Remove the draft conditional here before release */
 634         *version = (vers == TLS1_3_VERSION_DRAFT) ? TLS1_3_VERSION : vers;
 635     }
 636     BIO_indent(bio, indent, 80);
 637     BIO_printf(bio, "%s=0x%x (%s)\n",
 638                name, vers, ssl_trace_str(vers, ssl_version_tbl));
 639     *pmsg += 2;
 640     *pmsglen -= 2;
 641     return 1;
 642 }
 643
 644 static int ssl_print_random(BIO *bio, int indent,
 645                             const unsigned char **pmsg, size_t *pmsglen)
 646 {
 647     unsigned int tm;
 648     const unsigned char *p = *pmsg;
 649
 650     if (*pmsglen < 32)
 651         return 0;
 652     tm = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3];
 653     p += 4;
 654     BIO_indent(bio, indent, 80);
 655     BIO_puts(bio, "Random:\n");
 656     BIO_indent(bio, indent + 2, 80);
 657     BIO_printf(bio, "gmt_unix_time=0x%08X\n", tm);
 658     ssl_print_hex(bio, indent + 2, "random_bytes", p, 28);
 659     *pmsg += 32;
 660     *pmsglen -= 32;
 661     return 1;
 662 }
 663
 664 static int ssl_print_signature(BIO *bio, int indent, const SSL *ssl,
 665                                const unsigned char **pmsg, size_t *pmsglen)
 666 {
 667     if (*pmsglen < 2)
 668         return 0;
 669     if (SSL_USE_SIGALGS(ssl)) {
 670         const unsigned char *p = *pmsg;
 671         unsigned int sigalg = (p[0] << 8) | p[1];
 672
 673         BIO_indent(bio, indent, 80);
 674         BIO_printf(bio, "Signature Algorithm: %s (0x%04x)\n",
 675                    ssl_trace_str(sigalg, ssl_sigalg_tbl), sigalg);
 676         *pmsg += 2;
 677         *pmsglen -= 2;
 678     }
 679     return ssl_print_hexbuf(bio, indent, "Signature", 2, pmsg, pmsglen);
 680 }
 681
 682 static int ssl_print_extension(BIO *bio, int indent, int server,
 683                                unsigned char mt, int extype,
 684                                const unsigned char *ext, size_t extlen)
 685 {
 686     size_t xlen, share_len;
 687     unsigned int sigalg;
 688     uint32_t max_early_data;
 689
 690     BIO_indent(bio, indent, 80);
 691     BIO_printf(bio, "extension_type=%s(%d), length=%d\n",
 692                ssl_trace_str(extype, ssl_exts_tbl), extype, (int)extlen);
 693     switch (extype) {
 694     case TLSEXT_TYPE_max_fragment_length:
 695         if (extlen < 1)
 696             return 0;
 697         xlen = extlen;
 698         return ssl_trace_list(bio, indent + 2, ext, xlen, 1, ssl_mfl_tbl);
 699
 700     case TLSEXT_TYPE_ec_point_formats:
 701         if (extlen < 1)
 702             return 0;
 703         xlen = ext[0];
 704         if (extlen != xlen + 1)
 705             return 0;
 706         return ssl_trace_list(bio, indent + 2, ext + 1, xlen, 1, ssl_point_tbl);
 707
 708     case TLSEXT_TYPE_supported_groups:
 709         if (extlen < 2)
 710             return 0;
 711         xlen = (ext[0] << 8) | ext[1];
 712         if (extlen != xlen + 2)
 713             return 0;
 714         return ssl_trace_list(bio, indent + 2, ext + 2, xlen, 2, ssl_groups_tbl);
 715     case TLSEXT_TYPE_application_layer_protocol_negotiation:
 716         if (extlen < 2)
 717             return 0;
 718         xlen = (ext[0] << 8) | ext[1];
 719         if (extlen != xlen + 2)
 720             return 0;
 721         ext += 2;
 722         while (xlen > 0) {
 723             size_t plen = *ext++;
 724
 725             if (plen > xlen + 1)
 726                 return 0;
 727             BIO_indent(bio, indent + 2, 80);
 728             BIO_write(bio, ext, plen);
 729             BIO_puts(bio, "\n");
 730             ext += plen;
 731             xlen -= plen + 1;
 732         }
 733         return 1;
 734
 735     case TLSEXT_TYPE_signature_algorithms:
 736
 737         if (extlen < 2)
 738             return 0;
 739         xlen = (ext[0] << 8) | ext[1];
 740         if (extlen != xlen + 2)
 741             return 0;
 742         if (xlen & 1)
 743             return 0;
 744         ext += 2;
 745         while (xlen > 0) {
 746             BIO_indent(bio, indent + 2, 80);
 747             sigalg = (ext[0] << 8) | ext[1];
 748             BIO_printf(bio, "%s (0x%04x)\n",
 749                        ssl_trace_str(sigalg, ssl_sigalg_tbl), sigalg);
 750             xlen -= 2;
 751             ext += 2;
 752         }
 753         break;
 754
 755     case TLSEXT_TYPE_renegotiate:
 756         if (extlen < 1)
 757             return 0;
 758         xlen = ext[0];
 759         if (xlen + 1 != extlen)
 760             return 0;
 761         ext++;
 762         if (xlen) {
 763             if (server) {
 764                 if (xlen & 1)
 765                     return 0;
 766                 xlen >>= 1;
 767             }
 768             ssl_print_hex(bio, indent + 4, "client_verify_data", ext, xlen);
 769             if (server) {
 770                 ext += xlen;
 771                 ssl_print_hex(bio, indent + 4, "server_verify_data", ext, xlen);
 772             }
 773         } else {
 774             BIO_indent(bio, indent + 4, 80);
 775             BIO_puts(bio, "<EMPTY>\n");
 776         }
 777         break;
 778
 779     case TLSEXT_TYPE_heartbeat:
 780         return 0;
 781
 782     case TLSEXT_TYPE_session_ticket:
 783         if (extlen != 0)
 784             ssl_print_hex(bio, indent + 4, "ticket", ext, extlen);
 785         break;
 786
 787     case TLSEXT_TYPE_key_share:
 788         if (server && extlen == 2) {
 789             int group_id;
 790
 791             /* We assume this is an HRR, otherwise this is an invalid key_share */
 792             group_id = (ext[0] << 8) | ext[1];
 793             BIO_indent(bio, indent + 4, 80);
 794             BIO_printf(bio, "NamedGroup: %s (%d)\n",
 795                        ssl_trace_str(group_id, ssl_groups_tbl), group_id);
 796             break;
 797         }
 798         if (extlen < 2)
 799             return 0;
 800         if (server) {
 801             xlen = extlen;
 802         } else {
 803             xlen = (ext[0] << 8) | ext[1];
 804             if (extlen != xlen + 2)
 805                 return 0;
 806             ext += 2;
 807         }
 808         for (; xlen > 0; ext += share_len, xlen -= share_len) {
 809             int group_id;
 810
 811             if (xlen < 4)
 812                 return 0;
 813             group_id = (ext[0] << 8) | ext[1];
 814             share_len = (ext[2] << 8) | ext[3];
 815             ext += 4;
 816             xlen -= 4;
 817             if (xlen < share_len)
 818                 return 0;
 819             BIO_indent(bio, indent + 4, 80);
 820             BIO_printf(bio, "NamedGroup: %s (%d)\n",
 821                        ssl_trace_str(group_id, ssl_groups_tbl), group_id);
 822             ssl_print_hex(bio, indent + 4, "key_exchange: ", ext, share_len);
 823         }
 824         break;
 825
 826     case TLSEXT_TYPE_supported_versions:
 827         if (server) {
 828             int version;
 829
 830             if (extlen != 2)
 831                 return 0;
 832             version = (ext[0] << 8) | ext[1];
 833             BIO_indent(bio, indent + 4, 80);
 834             BIO_printf(bio, "%s (%d)\n",
 835                        ssl_trace_str(version, ssl_version_tbl), version);
 836             break;
 837         }
 838         if (extlen < 1)
 839             return 0;
 840         xlen = ext[0];
 841         if (extlen != xlen + 1)
 842             return 0;
 843         return ssl_trace_list(bio, indent + 2, ext + 1, xlen, 2,
 844                               ssl_version_tbl);
 845
 846     case TLSEXT_TYPE_psk_kex_modes:
 847         if (extlen < 1)
 848             return 0;
 849         xlen = ext[0];
 850         if (extlen != xlen + 1)
 851             return 0;
 852         return ssl_trace_list(bio, indent + 2, ext + 1, xlen, 1,
 853                               ssl_psk_kex_modes_tbl);
 854
 855     case TLSEXT_TYPE_early_data:
 856         if (mt != SSL3_MT_NEWSESSION_TICKET)
 857             break;
 858         if (extlen != 4)
 859             return 0;
 860         max_early_data = (ext[0] << 24) | (ext[1] << 16) | (ext[2] << 8)
 861                          | ext[3];
 862         BIO_indent(bio, indent + 2, 80);
 863         BIO_printf(bio, "max_early_data=%u\n", max_early_data);
 864         break;
 865
 866     default:
 867         BIO_dump_indent(bio, (const char *)ext, extlen, indent + 2);
 868     }
 869     return 1;
 870 }
 871
 872 static int ssl_print_extensions(BIO *bio, int indent, int server,
 873                                 unsigned char mt, const unsigned char **msgin,
 874                                 size_t *msginlen)
 875 {
 876     size_t extslen, msglen = *msginlen;
 877     const unsigned char *msg = *msgin;
 878
 879     BIO_indent(bio, indent, 80);
 880     if (msglen == 0) {
 881         BIO_puts(bio, "No Extensions\n");
 882         return 1;
 883     }
 884     extslen = (msg[0] << 8) | msg[1];
 885     if (extslen != msglen - 2)
 886         return 0;
 887     msg += 2;
 888     msglen = extslen;
 889     BIO_printf(bio, "extensions, length = %d\n", (int)msglen);
 890     while (msglen > 0) {
 891         int extype;
 892         size_t extlen;
 893         if (msglen < 4)
 894             return 0;
 895         extype = (msg[0] << 8) | msg[1];
 896         extlen = (msg[2] << 8) | msg[3];
 897         if (msglen < extlen + 4) {
 898             BIO_printf(bio, "extensions, extype = %d, extlen = %d\n", extype,
 899                        (int)extlen);
 900             BIO_dump_indent(bio, (const char *)msg, msglen, indent + 2);
 901             return 0;
 902         }
 903         msg += 4;
 904         if (!ssl_print_extension(bio, indent + 2, server, mt, extype, msg,
 905                                  extlen))
 906             return 0;
 907         msg += extlen;
 908         msglen -= extlen + 4;
 909     }
 910
 911     *msgin = msg;
 912     *msginlen = msglen;
 913     return 1;
 914 }
 915
 916 static int ssl_print_client_hello(BIO *bio, const SSL *ssl, int indent,
 917                                   const unsigned char *msg, size_t msglen)
 918 {
 919     size_t len;
 920     unsigned int cs;
 921
 922     if (!ssl_print_version(bio, indent, "client_version", &msg, &msglen, NULL))
 923         return 0;
 924     if (!ssl_print_random(bio, indent, &msg, &msglen))
 925         return 0;
 926     if (!ssl_print_hexbuf(bio, indent, "session_id", 1, &msg, &msglen))
 927         return 0;
 928     if (SSL_IS_DTLS(ssl)) {
 929         if (!ssl_print_hexbuf(bio, indent, "cookie", 1, &msg, &msglen))
 930             return 0;
 931     }
 932     if (msglen < 2)
 933         return 0;
 934     len = (msg[0] << 8) | msg[1];
 935     msg += 2;
 936     msglen -= 2;
 937     BIO_indent(bio, indent, 80);
 938     BIO_printf(bio, "cipher_suites (len=%d)\n", (int)len);
 939     if (msglen < len || len & 1)
 940         return 0;
 941     while (len > 0) {
 942         cs = (msg[0] << 8) | msg[1];
 943         BIO_indent(bio, indent + 2, 80);
 944         BIO_printf(bio, "{0x%02X, 0x%02X} %s\n",
 945                    msg[0], msg[1], ssl_trace_str(cs, ssl_ciphers_tbl));
 946         msg += 2;
 947         msglen -= 2;
 948         len -= 2;
 949     }
 950     if (msglen < 1)
 951         return 0;
 952     len = msg[0];
 953     msg++;
 954     msglen--;
 955     if (msglen < len)
 956         return 0;
 957     BIO_indent(bio, indent, 80);
 958     BIO_printf(bio, "compression_methods (len=%d)\n", (int)len);
 959     while (len > 0) {
 960         BIO_indent(bio, indent + 2, 80);
 961         BIO_printf(bio, "%s (0x%02X)\n",
 962                    ssl_trace_str(msg[0], ssl_comp_tbl), msg[0]);
 963         msg++;
 964         msglen--;
 965         len--;
 966     }
 967     if (!ssl_print_extensions(bio, indent, 0, SSL3_MT_CLIENT_HELLO, &msg,
 968                               &msglen))
 969         return 0;
 970     return 1;
 971 }
 972
 973 static int dtls_print_hello_vfyrequest(BIO *bio, int indent,
 974                                        const unsigned char *msg, size_t msglen)
 975 {
 976     if (!ssl_print_version(bio, indent, "server_version", &msg, &msglen, NULL))
 977         return 0;
 978     if (!ssl_print_hexbuf(bio, indent, "cookie", 1, &msg, &msglen))
 979         return 0;
 980     return 1;
 981 }
 982
 983 static int ssl_print_server_hello(BIO *bio, int indent,
 984                                   const unsigned char *msg, size_t msglen)
 985 {
 986     unsigned int cs;
 987     unsigned int vers;
 988
 989     if (!ssl_print_version(bio, indent, "server_version", &msg, &msglen, &vers))
 990         return 0;
 991     if (!ssl_print_random(bio, indent, &msg, &msglen))
 992         return 0;
 993     if (vers != TLS1_3_VERSION
 994             && !ssl_print_hexbuf(bio, indent, "session_id", 1, &msg, &msglen))
 995         return 0;
 996     if (msglen < 2)
 997         return 0;
 998     cs = (msg[0] << 8) | msg[1];
 999     BIO_indent(bio, indent, 80);
1000     BIO_printf(bio, "cipher_suite {0x%02X, 0x%02X} %s\n",
1001                msg[0], msg[1], ssl_trace_str(cs, ssl_ciphers_tbl));
1002     msg += 2;
1003     msglen -= 2;
1004     if (vers != TLS1_3_VERSION) {
1005         if (msglen < 1)
1006             return 0;
1007         BIO_indent(bio, indent, 80);
1008         BIO_printf(bio, "compression_method: %s (0x%02X)\n",
1009                    ssl_trace_str(msg[0], ssl_comp_tbl), msg[0]);
1010         msg++;
1011         msglen--;
1012     }
1013     if (!ssl_print_extensions(bio, indent, 1, SSL3_MT_SERVER_HELLO, &msg,
1014                               &msglen))
1015         return 0;
1016     return 1;
1017 }
1018
1019 static int ssl_get_keyex(const char **pname, const SSL *ssl)
1020 {
1021     unsigned long alg_k = ssl->s3->tmp.new_cipher->algorithm_mkey;
1022
1023     if (alg_k & SSL_kRSA) {
1024         *pname = "rsa";
1025         return SSL_kRSA;
1026     }
1027     if (alg_k & SSL_kDHE) {
1028         *pname = "DHE";
1029         return SSL_kDHE;
1030     }
1031     if (alg_k & SSL_kECDHE) {
1032         *pname = "ECDHE";
1033         return SSL_kECDHE;
1034     }
1035     if (alg_k & SSL_kPSK) {
1036         *pname = "PSK";
1037         return SSL_kPSK;
1038     }
1039     if (alg_k & SSL_kRSAPSK) {
1040         *pname = "RSAPSK";
1041         return SSL_kRSAPSK;
1042     }
1043     if (alg_k & SSL_kDHEPSK) {
1044         *pname = "DHEPSK";
1045         return SSL_kDHEPSK;
1046     }
1047     if (alg_k & SSL_kECDHEPSK) {
1048         *pname = "ECDHEPSK";
1049         return SSL_kECDHEPSK;
1050     }
1051     if (alg_k & SSL_kSRP) {
1052         *pname = "SRP";
1053         return SSL_kSRP;
1054     }
1055     if (alg_k & SSL_kGOST) {
1056         *pname = "GOST";
1057         return SSL_kGOST;
1058     }
1059     *pname = "UNKNOWN";
1060     return 0;
1061 }
1062
1063 static int ssl_print_client_keyex(BIO *bio, int indent, const SSL *ssl,
1064                                   const unsigned char *msg, size_t msglen)
1065 {
1066     const char *algname;
1067     int id = ssl_get_keyex(&algname, ssl);
1068
1069     BIO_indent(bio, indent, 80);
1070     BIO_printf(bio, "KeyExchangeAlgorithm=%s\n", algname);
1071     if (id & SSL_PSK) {
1072         if (!ssl_print_hexbuf(bio, indent + 2,
1073                               "psk_identity", 2, &msg, &msglen))
1074             return 0;
1075     }
1076     switch (id) {
1077
1078     case SSL_kRSA:
1079     case SSL_kRSAPSK:
1080         if (TLS1_get_version(ssl) == SSL3_VERSION) {
1081             ssl_print_hex(bio, indent + 2,
1082                           "EncyptedPreMasterSecret", msg, msglen);
1083         } else {
1084             if (!ssl_print_hexbuf(bio, indent + 2,
1085                                   "EncyptedPreMasterSecret", 2, &msg, &msglen))
1086                 return 0;
1087         }
1088         break;
1089
1090     case SSL_kDHE:
1091     case SSL_kDHEPSK:
1092         if (!ssl_print_hexbuf(bio, indent + 2, "dh_Yc", 2, &msg, &msglen))
1093             return 0;
1094         break;
1095
1096     case SSL_kECDHE:
1097     case SSL_kECDHEPSK:
1098         if (!ssl_print_hexbuf(bio, indent + 2, "ecdh_Yc", 1, &msg, &msglen))
1099             return 0;
1100         break;
1101
1102     }
1103
1104     return !msglen;
1105 }
1106
1107 static int ssl_print_server_keyex(BIO *bio, int indent, const SSL *ssl,
1108                                   const unsigned char *msg, size_t msglen)
1109 {
1110     const char *algname;
1111     int id = ssl_get_keyex(&algname, ssl);
1112
1113     BIO_indent(bio, indent, 80);
1114     BIO_printf(bio, "KeyExchangeAlgorithm=%s\n", algname);
1115     if (id & SSL_PSK) {
1116         if (!ssl_print_hexbuf(bio, indent + 2,
1117                               "psk_identity_hint", 2, &msg, &msglen))
1118             return 0;
1119     }
1120     switch (id) {
1121     case SSL_kRSA:
1122
1123         if (!ssl_print_hexbuf(bio, indent + 2, "rsa_modulus", 2, &msg, &msglen))
1124             return 0;
1125         if (!ssl_print_hexbuf(bio, indent + 2, "rsa_exponent", 2,
1126                               &msg, &msglen))
1127             return 0;
1128         break;
1129
1130     case SSL_kDHE:
1131     case SSL_kDHEPSK:
1132         if (!ssl_print_hexbuf(bio, indent + 2, "dh_p", 2, &msg, &msglen))
1133             return 0;
1134         if (!ssl_print_hexbuf(bio, indent + 2, "dh_g", 2, &msg, &msglen))
1135             return 0;
1136         if (!ssl_print_hexbuf(bio, indent + 2, "dh_Ys", 2, &msg, &msglen))
1137             return 0;
1138         break;
1139
1140 # ifndef OPENSSL_NO_EC
1141     case SSL_kECDHE:
1142     case SSL_kECDHEPSK:
1143         if (msglen < 1)
1144             return 0;
1145         BIO_indent(bio, indent + 2, 80);
1146         if (msg[0] == EXPLICIT_PRIME_CURVE_TYPE)
1147             BIO_puts(bio, "explicit_prime\n");
1148         else if (msg[0] == EXPLICIT_CHAR2_CURVE_TYPE)
1149             BIO_puts(bio, "explicit_char2\n");
1150         else if (msg[0] == NAMED_CURVE_TYPE) {
1151             int curve;
1152             if (msglen < 3)
1153                 return 0;
1154             curve = (msg[1] << 8) | msg[2];
1155             BIO_printf(bio, "named_curve: %s (%d)\n",
1156                        ssl_trace_str(curve, ssl_groups_tbl), curve);
1157             msg += 3;
1158             msglen -= 3;
1159             if (!ssl_print_hexbuf(bio, indent + 2, "point", 1, &msg, &msglen))
1160                 return 0;
1161         } else {
1162             BIO_printf(bio, "UNKNOWN CURVE PARAMETER TYPE %d\n", msg[0]);
1163             return 0;
1164         }
1165         break;
1166 # endif
1167
1168     case SSL_kPSK:
1169     case SSL_kRSAPSK:
1170         break;
1171     }
1172     if (!(id & SSL_PSK))
1173         ssl_print_signature(bio, indent, ssl, &msg, &msglen);
1174     return !msglen;
1175 }
1176
1177 static int ssl_print_certificate(BIO *bio, int indent,
1178                                  const unsigned char **pmsg, size_t *pmsglen)
1179 {
1180     size_t msglen = *pmsglen;
1181     size_t clen;
1182     X509 *x;
1183     const unsigned char *p = *pmsg, *q;
1184
1185     if (msglen < 3)
1186         return 0;
1187     clen = (p[0] << 16) | (p[1] << 8) | p[2];
1188     if (msglen < clen + 3)
1189         return 0;
1190     q = p + 3;
1191     BIO_indent(bio, indent, 80);
1192     BIO_printf(bio, "ASN.1Cert, length=%d", (int)clen);
1193     x = d2i_X509(NULL, &q, clen);
1194     if (!x)
1195         BIO_puts(bio, "<UNPARSEABLE CERTIFICATE>\n");
1196     else {
1197         BIO_puts(bio, "\n------details-----\n");
1198         X509_print_ex(bio, x, XN_FLAG_ONELINE, 0);
1199         PEM_write_bio_X509(bio, x);
1200         /* Print certificate stuff */
1201         BIO_puts(bio, "------------------\n");
1202         X509_free(x);
1203     }
1204     if (q != p + 3 + clen) {
1205         BIO_puts(bio, "<TRAILING GARBAGE AFTER CERTIFICATE>\n");
1206     }
1207     *pmsg += clen + 3;
1208     *pmsglen -= clen + 3;
1209     return 1;
1210 }
1211
1212 static int ssl_print_certificates(BIO *bio, const SSL *ssl, int server,
1213                                   int indent, const unsigned char *msg,
1214                                   size_t msglen)
1215 {
1216     size_t clen;
1217
1218     if (SSL_IS_TLS13(ssl)
1219             && !ssl_print_hexbuf(bio, indent, "context", 1, &msg, &msglen))
1220         return 0;
1221
1222     if (msglen < 3)
1223         return 0;
1224     clen = (msg[0] << 16) | (msg[1] << 8) | msg[2];
1225     if (msglen != clen + 3)
1226         return 0;
1227     msg += 3;
1228     BIO_indent(bio, indent, 80);
1229     BIO_printf(bio, "certificate_list, length=%d\n", (int)clen);
1230     while (clen > 0) {
1231         if (!ssl_print_certificate(bio, indent + 2, &msg, &clen))
1232             return 0;
1233         if (!ssl_print_extensions(bio, indent + 2, server, SSL3_MT_CERTIFICATE,
1234                                   &msg, &clen))
1235             return 0;
1236
1237     }
1238     return 1;
1239 }
1240
1241 static int ssl_print_cert_request(BIO *bio, int indent, const SSL *ssl,
1242                                   const unsigned char *msg, size_t msglen)
1243 {
1244     size_t xlen;
1245     unsigned int sigalg;
1246
1247     if (SSL_IS_TLS13(ssl)) {
1248         if (!ssl_print_hexbuf(bio, indent, "request_context", 1, &msg, &msglen))
1249             return 0;
1250         if (!ssl_print_extensions(bio, indent, 1,
1251                                   SSL3_MT_CERTIFICATE_REQUEST, &msg, &msglen))
1252             return 0;
1253         return 1;
1254     } else {
1255         if (msglen < 1)
1256             return 0;
1257         xlen = msg[0];
1258         if (msglen < xlen + 1)
1259             return 0;
1260         msg++;
1261         BIO_indent(bio, indent, 80);
1262         BIO_printf(bio, "certificate_types (len=%d)\n", (int)xlen);
1263         if (!ssl_trace_list(bio, indent + 2, msg, xlen, 1, ssl_ctype_tbl))
1264             return 0;
1265         msg += xlen;
1266         msglen -= xlen + 1;
1267     }
1268     if (SSL_USE_SIGALGS(ssl)) {
1269         if (msglen < 2)
1270             return 0;
1271         xlen = (msg[0] << 8) | msg[1];
1272         if (msglen < xlen + 2 || (xlen & 1))
1273             return 0;
1274         msg += 2;
1275         msglen -= xlen + 2;
1276         BIO_indent(bio, indent, 80);
1277         BIO_printf(bio, "signature_algorithms (len=%d)\n", (int)xlen);
1278         while (xlen > 0) {
1279             BIO_indent(bio, indent + 2, 80);
1280             sigalg = (msg[0] << 8) | msg[1];
1281             BIO_printf(bio, "%s (0x%04x)\n",
1282                        ssl_trace_str(sigalg, ssl_sigalg_tbl), sigalg);
1283             xlen -= 2;
1284             msg += 2;
1285         }
1286         msg += xlen;
1287     }
1288
1289     xlen = (msg[0] << 8) | msg[1];
1290     BIO_indent(bio, indent, 80);
1291     if (msglen < xlen + 2)
1292         return 0;
1293     msg += 2;
1294     msglen -= 2 + xlen;
1295     BIO_printf(bio, "certificate_authorities (len=%d)\n", (int)xlen);
1296     while (xlen > 0) {
1297         size_t dlen;
1298         X509_NAME *nm;
1299         const unsigned char *p;
1300         if (xlen < 2)
1301             return 0;
1302         dlen = (msg[0] << 8) | msg[1];
1303         if (xlen < dlen + 2)
1304             return 0;
1305         msg += 2;
1306         BIO_indent(bio, indent + 2, 80);
1307         BIO_printf(bio, "DistinguishedName (len=%d): ", (int)dlen);
1308         p = msg;
1309         nm = d2i_X509_NAME(NULL, &p, dlen);
1310         if (!nm) {
1311             BIO_puts(bio, "<UNPARSEABLE DN>\n");
1312         } else {
1313             X509_NAME_print_ex(bio, nm, 0, XN_FLAG_ONELINE);
1314             BIO_puts(bio, "\n");
1315             X509_NAME_free(nm);
1316         }
1317         xlen -= dlen + 2;
1318         msg += dlen;
1319     }
1320     if (SSL_IS_TLS13(ssl)) {
1321         if (!ssl_print_hexbuf(bio, indent, "request_extensions", 2,
1322                               &msg, &msglen))
1323             return 0;
1324     }
1325     return msglen == 0;
1326 }
1327
1328 static int ssl_print_ticket(BIO *bio, int indent, const SSL *ssl,
1329                             const unsigned char *msg, size_t msglen)
1330 {
1331     unsigned int tick_life;
1332
1333     if (msglen == 0) {
1334         BIO_indent(bio, indent + 2, 80);
1335         BIO_puts(bio, "No Ticket\n");
1336         return 1;
1337     }
1338     if (msglen < 4)
1339         return 0;
1340     tick_life = (msg[0] << 24) | (msg[1] << 16) | (msg[2] << 8) | msg[3];
1341     msglen -= 4;
1342     msg += 4;
1343     BIO_indent(bio, indent + 2, 80);
1344     BIO_printf(bio, "ticket_lifetime_hint=%u\n", tick_life);
1345     if (SSL_IS_TLS13(ssl)) {
1346         unsigned int ticket_age_add;
1347
1348         if (msglen < 4)
1349             return 0;
1350         ticket_age_add = (msg[0] << 24) | (msg[1] << 16) | (msg[2] << 8)
1351                           | msg[3];
1352         msglen -= 4;
1353         msg += 4;
1354         BIO_indent(bio, indent + 2, 80);
1355         BIO_printf(bio, "ticket_age_add=%u\n", ticket_age_add);
1356         if (!ssl_print_hexbuf(bio, indent + 2, "ticket_nonce", 1, &msg,
1357                               &msglen))
1358             return 0;
1359     }
1360     if (!ssl_print_hexbuf(bio, indent + 2, "ticket", 2, &msg, &msglen))
1361         return 0;
1362     if (SSL_IS_TLS13(ssl)
1363             && !ssl_print_extensions(bio, indent + 2, 0,
1364                                      SSL3_MT_NEWSESSION_TICKET, &msg, &msglen))
1365         return 0;
1366     if (msglen)
1367         return 0;
1368     return 1;
1369 }
1370
1371 static int ssl_print_handshake(BIO *bio, const SSL *ssl, int server,
1372                                const unsigned char *msg, size_t msglen,
1373                                int indent)
1374 {
1375     size_t hlen;
1376     unsigned char htype;
1377
1378     if (msglen < 4)
1379         return 0;
1380     htype = msg[0];
1381     hlen = (msg[1] << 16) | (msg[2] << 8) | msg[3];
1382     BIO_indent(bio, indent, 80);
1383     BIO_printf(bio, "%s, Length=%d\n",
1384                ssl_trace_str(htype, ssl_handshake_tbl), (int)hlen);
1385     msg += 4;
1386     msglen -= 4;
1387     if (SSL_IS_DTLS(ssl)) {
1388         if (msglen < 8)
1389             return 0;
1390         BIO_indent(bio, indent, 80);
1391         BIO_printf(bio, "message_seq=%d, fragment_offset=%d, "
1392                    "fragment_length=%d\n",
1393                    (msg[0] << 8) | msg[1],
1394                    (msg[2] << 16) | (msg[3] << 8) | msg[4],
1395                    (msg[5] << 16) | (msg[6] << 8) | msg[7]);
1396         msg += 8;
1397         msglen -= 8;
1398     }
1399     if (msglen < hlen)
1400         return 0;
1401     switch (htype) {
1402     case SSL3_MT_CLIENT_HELLO:
1403         if (!ssl_print_client_hello(bio, ssl, indent + 2, msg, msglen))
1404             return 0;
1405         break;
1406
1407     case DTLS1_MT_HELLO_VERIFY_REQUEST:
1408         if (!dtls_print_hello_vfyrequest(bio, indent + 2, msg, msglen))
1409             return 0;
1410         break;
1411
1412     case SSL3_MT_SERVER_HELLO:
1413         if (!ssl_print_server_hello(bio, indent + 2, msg, msglen))
1414             return 0;
1415         break;
1416
1417     case SSL3_MT_SERVER_KEY_EXCHANGE:
1418         if (!ssl_print_server_keyex(bio, indent + 2, ssl, msg, msglen))
1419             return 0;
1420         break;
1421
1422     case SSL3_MT_CLIENT_KEY_EXCHANGE:
1423         if (!ssl_print_client_keyex(bio, indent + 2, ssl, msg, msglen))
1424             return 0;
1425         break;
1426
1427     case SSL3_MT_CERTIFICATE:
1428         if (!ssl_print_certificates(bio, ssl, server, indent + 2, msg, msglen))
1429             return 0;
1430         break;
1431
1432     case SSL3_MT_CERTIFICATE_VERIFY:
1433         if (!ssl_print_signature(bio, indent + 2, ssl, &msg, &msglen))
1434             return 0;
1435         break;
1436
1437     case SSL3_MT_CERTIFICATE_REQUEST:
1438         if (!ssl_print_cert_request(bio, indent + 2, ssl, msg, msglen))
1439             return 0;
1440         break;
1441
1442     case SSL3_MT_FINISHED:
1443         ssl_print_hex(bio, indent + 2, "verify_data", msg, msglen);
1444         break;
1445
1446     case SSL3_MT_SERVER_DONE:
1447         if (msglen != 0)
1448             ssl_print_hex(bio, indent + 2, "unexpected value", msg, msglen);
1449         break;
1450
1451     case SSL3_MT_NEWSESSION_TICKET:
1452         if (!ssl_print_ticket(bio, indent + 2, ssl, msg, msglen))
1453             return 0;
1454         break;
1455
1456     case SSL3_MT_ENCRYPTED_EXTENSIONS:
1457         if (!ssl_print_extensions(bio, indent + 2, 1,
1458                                   SSL3_MT_ENCRYPTED_EXTENSIONS, &msg, &msglen))
1459             return 0;
1460         break;
1461
1462     case SSL3_MT_KEY_UPDATE:
1463         if (msglen != 1) {
1464             ssl_print_hex(bio, indent + 2, "unexpected value", msg, msglen);
1465             return 0;
1466         }
1467         if (!ssl_trace_list(bio, indent + 2, msg, msglen, 1,
1468                             ssl_key_update_tbl))
1469             return 0;
1470         break;
1471
1472     default:
1473         BIO_indent(bio, indent + 2, 80);
1474         BIO_puts(bio, "Unsupported, hex dump follows:\n");
1475         BIO_dump_indent(bio, (const char *)msg, msglen, indent + 4);
1476     }
1477     return 1;
1478 }
1479
1480 void SSL_trace(int write_p, int version, int content_type,
1481                const void *buf, size_t msglen, SSL *ssl, void *arg)
1482 {
1483     const unsigned char *msg = buf;
1484     BIO *bio = arg;
1485
1486     switch (content_type) {
1487     case SSL3_RT_HEADER:
1488         {
1489             int hvers = msg[1] << 8 | msg[2];
1490             BIO_puts(bio, write_p ? "Sent" : "Received");
1491             BIO_printf(bio, " Record\nHeader:\n  Version = %s (0x%x)\n",
1492                        ssl_trace_str(hvers, ssl_version_tbl), hvers);
1493             if (SSL_IS_DTLS(ssl)) {
1494                 BIO_printf(bio,
1495                            "  epoch=%d, sequence_number=%04x%04x%04x\n",
1496                            (msg[3] << 8 | msg[4]),
1497                            (msg[5] << 8 | msg[6]),
1498                            (msg[7] << 8 | msg[8]), (msg[9] << 8 | msg[10]));
1499             }
1500
1501             BIO_printf(bio, "  Content Type = %s (%d)\n  Length = %d",
1502                        ssl_trace_str(msg[0], ssl_content_tbl), msg[0],
1503                        msg[msglen - 2] << 8 | msg[msglen - 1]);
1504         }
1505         break;
1506
1507     case SSL3_RT_INNER_CONTENT_TYPE:
1508         BIO_printf(bio, "  Inner Content Type = %s (%d)",
1509                    ssl_trace_str(msg[0], ssl_content_tbl), msg[0]);
1510         break;
1511
1512     case SSL3_RT_HANDSHAKE:
1513         if (!ssl_print_handshake(bio, ssl, ssl->server ? write_p : !write_p,
1514                                  msg, msglen, 4))
1515             BIO_printf(bio, "Message length parse error!\n");
1516         break;
1517
1518     case SSL3_RT_CHANGE_CIPHER_SPEC:
1519         if (msglen == 1 && msg[0] == 1)
1520             BIO_puts(bio, "    change_cipher_spec (1)\n");
1521         else
1522             ssl_print_hex(bio, 4, "unknown value", msg, msglen);
1523         break;
1524
1525     case SSL3_RT_ALERT:
1526         if (msglen != 2)
1527             BIO_puts(bio, "    Illegal Alert Length\n");
1528         else {
1529             BIO_printf(bio, "    Level=%s(%d), description=%s(%d)\n",
1530                        SSL_alert_type_string_long(msg[0] << 8),
1531                        msg[0], SSL_alert_desc_string_long(msg[1]), msg[1]);
1532         }
1533
1534     }
1535
1536     BIO_puts(bio, "\n");
1537 }
1538
1539 #endif