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     {TLSEXT_TYPE_post_handshake_auth, "post_handshake_auth"}
 486 };
 487
 488 static const ssl_trace_tbl ssl_groups_tbl[] = {
 489     {1, "sect163k1 (K-163)"},
 490     {2, "sect163r1"},
 491     {3, "sect163r2 (B-163)"},
 492     {4, "sect193r1"},
 493     {5, "sect193r2"},
 494     {6, "sect233k1 (K-233)"},
 495     {7, "sect233r1 (B-233)"},
 496     {8, "sect239k1"},
 497     {9, "sect283k1 (K-283)"},
 498     {10, "sect283r1 (B-283)"},
 499     {11, "sect409k1 (K-409)"},
 500     {12, "sect409r1 (B-409)"},
 501     {13, "sect571k1 (K-571)"},
 502     {14, "sect571r1 (B-571)"},
 503     {15, "secp160k1"},
 504     {16, "secp160r1"},
 505     {17, "secp160r2"},
 506     {18, "secp192k1"},
 507     {19, "secp192r1 (P-192)"},
 508     {20, "secp224k1"},
 509     {21, "secp224r1 (P-224)"},
 510     {22, "secp256k1"},
 511     {23, "secp256r1 (P-256)"},
 512     {24, "secp384r1 (P-384)"},
 513     {25, "secp521r1 (P-521)"},
 514     {26, "brainpoolP256r1"},
 515     {27, "brainpoolP384r1"},
 516     {28, "brainpoolP512r1"},
 517     {29, "ecdh_x25519"},
 518     {30, "ecdh_x448"},
 519     {256, "ffdhe2048"},
 520     {257, "ffdhe3072"},
 521     {258, "ffdhe4096"},
 522     {259, "ffdhe6144"},
 523     {260, "ffdhe8192"},
 524     {0xFF01, "arbitrary_explicit_prime_curves"},
 525     {0xFF02, "arbitrary_explicit_char2_curves"}
 526 };
 527
 528 static const ssl_trace_tbl ssl_point_tbl[] = {
 529     {0, "uncompressed"},
 530     {1, "ansiX962_compressed_prime"},
 531     {2, "ansiX962_compressed_char2"}
 532 };
 533
 534 static const ssl_trace_tbl ssl_mfl_tbl[] = {
 535     {0, "disabled"},
 536     {1, "max_fragment_length := 2^9 (512 bytes)"},
 537     {2, "max_fragment_length := 2^10 (1024 bytes)"},
 538     {3, "max_fragment_length := 2^11 (2048 bytes)"},
 539     {4, "max_fragment_length := 2^12 (4096 bytes)"}
 540 };
 541
 542 static const ssl_trace_tbl ssl_sigalg_tbl[] = {
 543     {TLSEXT_SIGALG_ecdsa_secp256r1_sha256, "ecdsa_secp256r1_sha256"},
 544     {TLSEXT_SIGALG_ecdsa_secp384r1_sha384, "ecdsa_secp384r1_sha384"},
 545     {TLSEXT_SIGALG_ecdsa_secp521r1_sha512, "ecdsa_secp521r1_sha512"},
 546     {TLSEXT_SIGALG_ecdsa_sha224, "ecdsa_sha224"},
 547     {TLSEXT_SIGALG_ed25519, "ed25519"},
 548     {TLSEXT_SIGALG_ed448, "ed448"},
 549     {TLSEXT_SIGALG_ecdsa_sha1, "ecdsa_sha1"},
 550     {TLSEXT_SIGALG_rsa_pss_rsae_sha256, "rsa_pss_rsae_sha256"},
 551     {TLSEXT_SIGALG_rsa_pss_rsae_sha384, "rsa_pss_rsae_sha384"},
 552     {TLSEXT_SIGALG_rsa_pss_rsae_sha512, "rsa_pss_rsae_sha512"},
 553     {TLSEXT_SIGALG_rsa_pss_pss_sha256, "rsa_pss_pss_sha256"},
 554     {TLSEXT_SIGALG_rsa_pss_pss_sha384, "rsa_pss_pss_sha384"},
 555     {TLSEXT_SIGALG_rsa_pss_pss_sha512, "rsa_pss_pss_sha512"},
 556     {TLSEXT_SIGALG_rsa_pkcs1_sha256, "rsa_pkcs1_sha256"},
 557     {TLSEXT_SIGALG_rsa_pkcs1_sha384, "rsa_pkcs1_sha384"},
 558     {TLSEXT_SIGALG_rsa_pkcs1_sha512, "rsa_pkcs1_sha512"},
 559     {TLSEXT_SIGALG_rsa_pkcs1_sha224, "rsa_pkcs1_sha224"},
 560     {TLSEXT_SIGALG_rsa_pkcs1_sha1, "rsa_pkcs1_sha1"},
 561     {TLSEXT_SIGALG_dsa_sha256, "dsa_sha256"},
 562     {TLSEXT_SIGALG_dsa_sha384, "dsa_sha384"},
 563     {TLSEXT_SIGALG_dsa_sha512, "dsa_sha512"},
 564     {TLSEXT_SIGALG_dsa_sha224, "dsa_sha224"},
 565     {TLSEXT_SIGALG_dsa_sha1, "dsa_sha1"},
 566     {TLSEXT_SIGALG_gostr34102012_256_gostr34112012_256, "gost2012_256"},
 567     {TLSEXT_SIGALG_gostr34102012_512_gostr34112012_512, "gost2012_512"},
 568     {TLSEXT_SIGALG_gostr34102001_gostr3411, "gost2001_gost94"},
 569 };
 570
 571 static const ssl_trace_tbl ssl_ctype_tbl[] = {
 572     {1, "rsa_sign"},
 573     {2, "dss_sign"},
 574     {3, "rsa_fixed_dh"},
 575     {4, "dss_fixed_dh"},
 576     {5, "rsa_ephemeral_dh"},
 577     {6, "dss_ephemeral_dh"},
 578     {20, "fortezza_dms"},
 579     {64, "ecdsa_sign"},
 580     {65, "rsa_fixed_ecdh"},
 581     {66, "ecdsa_fixed_ecdh"}
 582 };
 583
 584 static const ssl_trace_tbl ssl_psk_kex_modes_tbl[] = {
 585     {TLSEXT_KEX_MODE_KE, "psk_ke"},
 586     {TLSEXT_KEX_MODE_KE_DHE, "psk_dhe_ke"}
 587 };
 588
 589 static const ssl_trace_tbl ssl_key_update_tbl[] = {
 590     {SSL_KEY_UPDATE_NOT_REQUESTED, "update_not_requested"},
 591     {SSL_KEY_UPDATE_REQUESTED, "update_requested"}
 592 };
 593
 594 static void ssl_print_hex(BIO *bio, int indent, const char *name,
 595                           const unsigned char *msg, size_t msglen)
 596 {
 597     size_t i;
 598
 599     BIO_indent(bio, indent, 80);
 600     BIO_printf(bio, "%s (len=%d): ", name, (int)msglen);
 601     for (i = 0; i < msglen; i++)
 602         BIO_printf(bio, "%02X", msg[i]);
 603     BIO_puts(bio, "\n");
 604 }
 605
 606 static int ssl_print_hexbuf(BIO *bio, int indent, const char *name, size_t nlen,
 607                             const unsigned char **pmsg, size_t *pmsglen)
 608 {
 609     size_t blen;
 610     const unsigned char *p = *pmsg;
 611
 612     if (*pmsglen < nlen)
 613         return 0;
 614     blen = p[0];
 615     if (nlen > 1)
 616         blen = (blen << 8) | p[1];
 617     if (*pmsglen < nlen + blen)
 618         return 0;
 619     p += nlen;
 620     ssl_print_hex(bio, indent, name, p, blen);
 621     *pmsg += blen + nlen;
 622     *pmsglen -= blen + nlen;
 623     return 1;
 624 }
 625
 626 static int ssl_print_version(BIO *bio, int indent, const char *name,
 627                              const unsigned char **pmsg, size_t *pmsglen,
 628                              unsigned int *version)
 629 {
 630     int vers;
 631
 632     if (*pmsglen < 2)
 633         return 0;
 634     vers = ((*pmsg)[0] << 8) | (*pmsg)[1];
 635     if (version != NULL) {
 636         /* TODO(TLS1.3): Remove the draft conditional here before release */
 637         *version = (vers == TLS1_3_VERSION_DRAFT) ? TLS1_3_VERSION : vers;
 638     }
 639     BIO_indent(bio, indent, 80);
 640     BIO_printf(bio, "%s=0x%x (%s)\n",
 641                name, vers, ssl_trace_str(vers, ssl_version_tbl));
 642     *pmsg += 2;
 643     *pmsglen -= 2;
 644     return 1;
 645 }
 646
 647 static int ssl_print_random(BIO *bio, int indent,
 648                             const unsigned char **pmsg, size_t *pmsglen)
 649 {
 650     unsigned int tm;
 651     const unsigned char *p = *pmsg;
 652
 653     if (*pmsglen < 32)
 654         return 0;
 655     tm = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3];
 656     p += 4;
 657     BIO_indent(bio, indent, 80);
 658     BIO_puts(bio, "Random:\n");
 659     BIO_indent(bio, indent + 2, 80);
 660     BIO_printf(bio, "gmt_unix_time=0x%08X\n", tm);
 661     ssl_print_hex(bio, indent + 2, "random_bytes", p, 28);
 662     *pmsg += 32;
 663     *pmsglen -= 32;
 664     return 1;
 665 }
 666
 667 static int ssl_print_signature(BIO *bio, int indent, const SSL *ssl,
 668                                const unsigned char **pmsg, size_t *pmsglen)
 669 {
 670     if (*pmsglen < 2)
 671         return 0;
 672     if (SSL_USE_SIGALGS(ssl)) {
 673         const unsigned char *p = *pmsg;
 674         unsigned int sigalg = (p[0] << 8) | p[1];
 675
 676         BIO_indent(bio, indent, 80);
 677         BIO_printf(bio, "Signature Algorithm: %s (0x%04x)\n",
 678                    ssl_trace_str(sigalg, ssl_sigalg_tbl), sigalg);
 679         *pmsg += 2;
 680         *pmsglen -= 2;
 681     }
 682     return ssl_print_hexbuf(bio, indent, "Signature", 2, pmsg, pmsglen);
 683 }
 684
 685 static int ssl_print_extension(BIO *bio, int indent, int server,
 686                                unsigned char mt, int extype,
 687                                const unsigned char *ext, size_t extlen)
 688 {
 689     size_t xlen, share_len;
 690     unsigned int sigalg;
 691     uint32_t max_early_data;
 692
 693     BIO_indent(bio, indent, 80);
 694     BIO_printf(bio, "extension_type=%s(%d), length=%d\n",
 695                ssl_trace_str(extype, ssl_exts_tbl), extype, (int)extlen);
 696     switch (extype) {
 697     case TLSEXT_TYPE_max_fragment_length:
 698         if (extlen < 1)
 699             return 0;
 700         xlen = extlen;
 701         return ssl_trace_list(bio, indent + 2, ext, xlen, 1, ssl_mfl_tbl);
 702
 703     case TLSEXT_TYPE_ec_point_formats:
 704         if (extlen < 1)
 705             return 0;
 706         xlen = ext[0];
 707         if (extlen != xlen + 1)
 708             return 0;
 709         return ssl_trace_list(bio, indent + 2, ext + 1, xlen, 1, ssl_point_tbl);
 710
 711     case TLSEXT_TYPE_supported_groups:
 712         if (extlen < 2)
 713             return 0;
 714         xlen = (ext[0] << 8) | ext[1];
 715         if (extlen != xlen + 2)
 716             return 0;
 717         return ssl_trace_list(bio, indent + 2, ext + 2, xlen, 2, ssl_groups_tbl);
 718     case TLSEXT_TYPE_application_layer_protocol_negotiation:
 719         if (extlen < 2)
 720             return 0;
 721         xlen = (ext[0] << 8) | ext[1];
 722         if (extlen != xlen + 2)
 723             return 0;
 724         ext += 2;
 725         while (xlen > 0) {
 726             size_t plen = *ext++;
 727
 728             if (plen > xlen + 1)
 729                 return 0;
 730             BIO_indent(bio, indent + 2, 80);
 731             BIO_write(bio, ext, plen);
 732             BIO_puts(bio, "\n");
 733             ext += plen;
 734             xlen -= plen + 1;
 735         }
 736         return 1;
 737
 738     case TLSEXT_TYPE_signature_algorithms:
 739
 740         if (extlen < 2)
 741             return 0;
 742         xlen = (ext[0] << 8) | ext[1];
 743         if (extlen != xlen + 2)
 744             return 0;
 745         if (xlen & 1)
 746             return 0;
 747         ext += 2;
 748         while (xlen > 0) {
 749             BIO_indent(bio, indent + 2, 80);
 750             sigalg = (ext[0] << 8) | ext[1];
 751             BIO_printf(bio, "%s (0x%04x)\n",
 752                        ssl_trace_str(sigalg, ssl_sigalg_tbl), sigalg);
 753             xlen -= 2;
 754             ext += 2;
 755         }
 756         break;
 757
 758     case TLSEXT_TYPE_renegotiate:
 759         if (extlen < 1)
 760             return 0;
 761         xlen = ext[0];
 762         if (xlen + 1 != extlen)
 763             return 0;
 764         ext++;
 765         if (xlen) {
 766             if (server) {
 767                 if (xlen & 1)
 768                     return 0;
 769                 xlen >>= 1;
 770             }
 771             ssl_print_hex(bio, indent + 4, "client_verify_data", ext, xlen);
 772             if (server) {
 773                 ext += xlen;
 774                 ssl_print_hex(bio, indent + 4, "server_verify_data", ext, xlen);
 775             }
 776         } else {
 777             BIO_indent(bio, indent + 4, 80);
 778             BIO_puts(bio, "<EMPTY>\n");
 779         }
 780         break;
 781
 782     case TLSEXT_TYPE_heartbeat:
 783         return 0;
 784
 785     case TLSEXT_TYPE_session_ticket:
 786         if (extlen != 0)
 787             ssl_print_hex(bio, indent + 4, "ticket", ext, extlen);
 788         break;
 789
 790     case TLSEXT_TYPE_key_share:
 791         if (server && extlen == 2) {
 792             int group_id;
 793
 794             /* We assume this is an HRR, otherwise this is an invalid key_share */
 795             group_id = (ext[0] << 8) | ext[1];
 796             BIO_indent(bio, indent + 4, 80);
 797             BIO_printf(bio, "NamedGroup: %s (%d)\n",
 798                        ssl_trace_str(group_id, ssl_groups_tbl), group_id);
 799             break;
 800         }
 801         if (extlen < 2)
 802             return 0;
 803         if (server) {
 804             xlen = extlen;
 805         } else {
 806             xlen = (ext[0] << 8) | ext[1];
 807             if (extlen != xlen + 2)
 808                 return 0;
 809             ext += 2;
 810         }
 811         for (; xlen > 0; ext += share_len, xlen -= share_len) {
 812             int group_id;
 813
 814             if (xlen < 4)
 815                 return 0;
 816             group_id = (ext[0] << 8) | ext[1];
 817             share_len = (ext[2] << 8) | ext[3];
 818             ext += 4;
 819             xlen -= 4;
 820             if (xlen < share_len)
 821                 return 0;
 822             BIO_indent(bio, indent + 4, 80);
 823             BIO_printf(bio, "NamedGroup: %s (%d)\n",
 824                        ssl_trace_str(group_id, ssl_groups_tbl), group_id);
 825             ssl_print_hex(bio, indent + 4, "key_exchange: ", ext, share_len);
 826         }
 827         break;
 828
 829     case TLSEXT_TYPE_supported_versions:
 830         if (server) {
 831             int version;
 832
 833             if (extlen != 2)
 834                 return 0;
 835             version = (ext[0] << 8) | ext[1];
 836             BIO_indent(bio, indent + 4, 80);
 837             BIO_printf(bio, "%s (%d)\n",
 838                        ssl_trace_str(version, ssl_version_tbl), version);
 839             break;
 840         }
 841         if (extlen < 1)
 842             return 0;
 843         xlen = ext[0];
 844         if (extlen != xlen + 1)
 845             return 0;
 846         return ssl_trace_list(bio, indent + 2, ext + 1, xlen, 2,
 847                               ssl_version_tbl);
 848
 849     case TLSEXT_TYPE_psk_kex_modes:
 850         if (extlen < 1)
 851             return 0;
 852         xlen = ext[0];
 853         if (extlen != xlen + 1)
 854             return 0;
 855         return ssl_trace_list(bio, indent + 2, ext + 1, xlen, 1,
 856                               ssl_psk_kex_modes_tbl);
 857
 858     case TLSEXT_TYPE_early_data:
 859         if (mt != SSL3_MT_NEWSESSION_TICKET)
 860             break;
 861         if (extlen != 4)
 862             return 0;
 863         max_early_data = (ext[0] << 24) | (ext[1] << 16) | (ext[2] << 8)
 864                          | ext[3];
 865         BIO_indent(bio, indent + 2, 80);
 866         BIO_printf(bio, "max_early_data=%u\n", max_early_data);
 867         break;
 868
 869     default:
 870         BIO_dump_indent(bio, (const char *)ext, extlen, indent + 2);
 871     }
 872     return 1;
 873 }
 874
 875 static int ssl_print_extensions(BIO *bio, int indent, int server,
 876                                 unsigned char mt, const unsigned char **msgin,
 877                                 size_t *msginlen)
 878 {
 879     size_t extslen, msglen = *msginlen;
 880     const unsigned char *msg = *msgin;
 881
 882     BIO_indent(bio, indent, 80);
 883     if (msglen == 0) {
 884         BIO_puts(bio, "No Extensions\n");
 885         return 1;
 886     }
 887     extslen = (msg[0] << 8) | msg[1];
 888     if (extslen != msglen - 2)
 889         return 0;
 890     msg += 2;
 891     msglen = extslen;
 892     BIO_printf(bio, "extensions, length = %d\n", (int)msglen);
 893     while (msglen > 0) {
 894         int extype;
 895         size_t extlen;
 896         if (msglen < 4)
 897             return 0;
 898         extype = (msg[0] << 8) | msg[1];
 899         extlen = (msg[2] << 8) | msg[3];
 900         if (msglen < extlen + 4) {
 901             BIO_printf(bio, "extensions, extype = %d, extlen = %d\n", extype,
 902                        (int)extlen);
 903             BIO_dump_indent(bio, (const char *)msg, msglen, indent + 2);
 904             return 0;
 905         }
 906         msg += 4;
 907         if (!ssl_print_extension(bio, indent + 2, server, mt, extype, msg,
 908                                  extlen))
 909             return 0;
 910         msg += extlen;
 911         msglen -= extlen + 4;
 912     }
 913
 914     *msgin = msg;
 915     *msginlen = msglen;
 916     return 1;
 917 }
 918
 919 static int ssl_print_client_hello(BIO *bio, const SSL *ssl, int indent,
 920                                   const unsigned char *msg, size_t msglen)
 921 {
 922     size_t len;
 923     unsigned int cs;
 924
 925     if (!ssl_print_version(bio, indent, "client_version", &msg, &msglen, NULL))
 926         return 0;
 927     if (!ssl_print_random(bio, indent, &msg, &msglen))
 928         return 0;
 929     if (!ssl_print_hexbuf(bio, indent, "session_id", 1, &msg, &msglen))
 930         return 0;
 931     if (SSL_IS_DTLS(ssl)) {
 932         if (!ssl_print_hexbuf(bio, indent, "cookie", 1, &msg, &msglen))
 933             return 0;
 934     }
 935     if (msglen < 2)
 936         return 0;
 937     len = (msg[0] << 8) | msg[1];
 938     msg += 2;
 939     msglen -= 2;
 940     BIO_indent(bio, indent, 80);
 941     BIO_printf(bio, "cipher_suites (len=%d)\n", (int)len);
 942     if (msglen < len || len & 1)
 943         return 0;
 944     while (len > 0) {
 945         cs = (msg[0] << 8) | msg[1];
 946         BIO_indent(bio, indent + 2, 80);
 947         BIO_printf(bio, "{0x%02X, 0x%02X} %s\n",
 948                    msg[0], msg[1], ssl_trace_str(cs, ssl_ciphers_tbl));
 949         msg += 2;
 950         msglen -= 2;
 951         len -= 2;
 952     }
 953     if (msglen < 1)
 954         return 0;
 955     len = msg[0];
 956     msg++;
 957     msglen--;
 958     if (msglen < len)
 959         return 0;
 960     BIO_indent(bio, indent, 80);
 961     BIO_printf(bio, "compression_methods (len=%d)\n", (int)len);
 962     while (len > 0) {
 963         BIO_indent(bio, indent + 2, 80);
 964         BIO_printf(bio, "%s (0x%02X)\n",
 965                    ssl_trace_str(msg[0], ssl_comp_tbl), msg[0]);
 966         msg++;
 967         msglen--;
 968         len--;
 969     }
 970     if (!ssl_print_extensions(bio, indent, 0, SSL3_MT_CLIENT_HELLO, &msg,
 971                               &msglen))
 972         return 0;
 973     return 1;
 974 }
 975
 976 static int dtls_print_hello_vfyrequest(BIO *bio, int indent,
 977                                        const unsigned char *msg, size_t msglen)
 978 {
 979     if (!ssl_print_version(bio, indent, "server_version", &msg, &msglen, NULL))
 980         return 0;
 981     if (!ssl_print_hexbuf(bio, indent, "cookie", 1, &msg, &msglen))
 982         return 0;
 983     return 1;
 984 }
 985
 986 static int ssl_print_server_hello(BIO *bio, int indent,
 987                                   const unsigned char *msg, size_t msglen)
 988 {
 989     unsigned int cs;
 990     unsigned int vers;
 991
 992     if (!ssl_print_version(bio, indent, "server_version", &msg, &msglen, &vers))
 993         return 0;
 994     if (!ssl_print_random(bio, indent, &msg, &msglen))
 995         return 0;
 996     if (vers != TLS1_3_VERSION
 997             && !ssl_print_hexbuf(bio, indent, "session_id", 1, &msg, &msglen))
 998         return 0;
 999     if (msglen < 2)
1000         return 0;
1001     cs = (msg[0] << 8) | msg[1];
1002     BIO_indent(bio, indent, 80);
1003     BIO_printf(bio, "cipher_suite {0x%02X, 0x%02X} %s\n",
1004                msg[0], msg[1], ssl_trace_str(cs, ssl_ciphers_tbl));
1005     msg += 2;
1006     msglen -= 2;
1007     if (vers != TLS1_3_VERSION) {
1008         if (msglen < 1)
1009             return 0;
1010         BIO_indent(bio, indent, 80);
1011         BIO_printf(bio, "compression_method: %s (0x%02X)\n",
1012                    ssl_trace_str(msg[0], ssl_comp_tbl), msg[0]);
1013         msg++;
1014         msglen--;
1015     }
1016     if (!ssl_print_extensions(bio, indent, 1, SSL3_MT_SERVER_HELLO, &msg,
1017                               &msglen))
1018         return 0;
1019     return 1;
1020 }
1021
1022 static int ssl_get_keyex(const char **pname, const SSL *ssl)
1023 {
1024     unsigned long alg_k = ssl->s3->tmp.new_cipher->algorithm_mkey;
1025
1026     if (alg_k & SSL_kRSA) {
1027         *pname = "rsa";
1028         return SSL_kRSA;
1029     }
1030     if (alg_k & SSL_kDHE) {
1031         *pname = "DHE";
1032         return SSL_kDHE;
1033     }
1034     if (alg_k & SSL_kECDHE) {
1035         *pname = "ECDHE";
1036         return SSL_kECDHE;
1037     }
1038     if (alg_k & SSL_kPSK) {
1039         *pname = "PSK";
1040         return SSL_kPSK;
1041     }
1042     if (alg_k & SSL_kRSAPSK) {
1043         *pname = "RSAPSK";
1044         return SSL_kRSAPSK;
1045     }
1046     if (alg_k & SSL_kDHEPSK) {
1047         *pname = "DHEPSK";
1048         return SSL_kDHEPSK;
1049     }
1050     if (alg_k & SSL_kECDHEPSK) {
1051         *pname = "ECDHEPSK";
1052         return SSL_kECDHEPSK;
1053     }
1054     if (alg_k & SSL_kSRP) {
1055         *pname = "SRP";
1056         return SSL_kSRP;
1057     }
1058     if (alg_k & SSL_kGOST) {
1059         *pname = "GOST";
1060         return SSL_kGOST;
1061     }
1062     *pname = "UNKNOWN";
1063     return 0;
1064 }
1065
1066 static int ssl_print_client_keyex(BIO *bio, int indent, const SSL *ssl,
1067                                   const unsigned char *msg, size_t msglen)
1068 {
1069     const char *algname;
1070     int id = ssl_get_keyex(&algname, ssl);
1071
1072     BIO_indent(bio, indent, 80);
1073     BIO_printf(bio, "KeyExchangeAlgorithm=%s\n", algname);
1074     if (id & SSL_PSK) {
1075         if (!ssl_print_hexbuf(bio, indent + 2,
1076                               "psk_identity", 2, &msg, &msglen))
1077             return 0;
1078     }
1079     switch (id) {
1080
1081     case SSL_kRSA:
1082     case SSL_kRSAPSK:
1083         if (TLS1_get_version(ssl) == SSL3_VERSION) {
1084             ssl_print_hex(bio, indent + 2,
1085                           "EncyptedPreMasterSecret", msg, msglen);
1086         } else {
1087             if (!ssl_print_hexbuf(bio, indent + 2,
1088                                   "EncyptedPreMasterSecret", 2, &msg, &msglen))
1089                 return 0;
1090         }
1091         break;
1092
1093     case SSL_kDHE:
1094     case SSL_kDHEPSK:
1095         if (!ssl_print_hexbuf(bio, indent + 2, "dh_Yc", 2, &msg, &msglen))
1096             return 0;
1097         break;
1098
1099     case SSL_kECDHE:
1100     case SSL_kECDHEPSK:
1101         if (!ssl_print_hexbuf(bio, indent + 2, "ecdh_Yc", 1, &msg, &msglen))
1102             return 0;
1103         break;
1104
1105     }
1106
1107     return !msglen;
1108 }
1109
1110 static int ssl_print_server_keyex(BIO *bio, int indent, const SSL *ssl,
1111                                   const unsigned char *msg, size_t msglen)
1112 {
1113     const char *algname;
1114     int id = ssl_get_keyex(&algname, ssl);
1115
1116     BIO_indent(bio, indent, 80);
1117     BIO_printf(bio, "KeyExchangeAlgorithm=%s\n", algname);
1118     if (id & SSL_PSK) {
1119         if (!ssl_print_hexbuf(bio, indent + 2,
1120                               "psk_identity_hint", 2, &msg, &msglen))
1121             return 0;
1122     }
1123     switch (id) {
1124     case SSL_kRSA:
1125
1126         if (!ssl_print_hexbuf(bio, indent + 2, "rsa_modulus", 2, &msg, &msglen))
1127             return 0;
1128         if (!ssl_print_hexbuf(bio, indent + 2, "rsa_exponent", 2,
1129                               &msg, &msglen))
1130             return 0;
1131         break;
1132
1133     case SSL_kDHE:
1134     case SSL_kDHEPSK:
1135         if (!ssl_print_hexbuf(bio, indent + 2, "dh_p", 2, &msg, &msglen))
1136             return 0;
1137         if (!ssl_print_hexbuf(bio, indent + 2, "dh_g", 2, &msg, &msglen))
1138             return 0;
1139         if (!ssl_print_hexbuf(bio, indent + 2, "dh_Ys", 2, &msg, &msglen))
1140             return 0;
1141         break;
1142
1143 # ifndef OPENSSL_NO_EC
1144     case SSL_kECDHE:
1145     case SSL_kECDHEPSK:
1146         if (msglen < 1)
1147             return 0;
1148         BIO_indent(bio, indent + 2, 80);
1149         if (msg[0] == EXPLICIT_PRIME_CURVE_TYPE)
1150             BIO_puts(bio, "explicit_prime\n");
1151         else if (msg[0] == EXPLICIT_CHAR2_CURVE_TYPE)
1152             BIO_puts(bio, "explicit_char2\n");
1153         else if (msg[0] == NAMED_CURVE_TYPE) {
1154             int curve;
1155             if (msglen < 3)
1156                 return 0;
1157             curve = (msg[1] << 8) | msg[2];
1158             BIO_printf(bio, "named_curve: %s (%d)\n",
1159                        ssl_trace_str(curve, ssl_groups_tbl), curve);
1160             msg += 3;
1161             msglen -= 3;
1162             if (!ssl_print_hexbuf(bio, indent + 2, "point", 1, &msg, &msglen))
1163                 return 0;
1164         } else {
1165             BIO_printf(bio, "UNKNOWN CURVE PARAMETER TYPE %d\n", msg[0]);
1166             return 0;
1167         }
1168         break;
1169 # endif
1170
1171     case SSL_kPSK:
1172     case SSL_kRSAPSK:
1173         break;
1174     }
1175     if (!(id & SSL_PSK))
1176         ssl_print_signature(bio, indent, ssl, &msg, &msglen);
1177     return !msglen;
1178 }
1179
1180 static int ssl_print_certificate(BIO *bio, int indent,
1181                                  const unsigned char **pmsg, size_t *pmsglen)
1182 {
1183     size_t msglen = *pmsglen;
1184     size_t clen;
1185     X509 *x;
1186     const unsigned char *p = *pmsg, *q;
1187
1188     if (msglen < 3)
1189         return 0;
1190     clen = (p[0] << 16) | (p[1] << 8) | p[2];
1191     if (msglen < clen + 3)
1192         return 0;
1193     q = p + 3;
1194     BIO_indent(bio, indent, 80);
1195     BIO_printf(bio, "ASN.1Cert, length=%d", (int)clen);
1196     x = d2i_X509(NULL, &q, clen);
1197     if (!x)
1198         BIO_puts(bio, "<UNPARSEABLE CERTIFICATE>\n");
1199     else {
1200         BIO_puts(bio, "\n------details-----\n");
1201         X509_print_ex(bio, x, XN_FLAG_ONELINE, 0);
1202         PEM_write_bio_X509(bio, x);
1203         /* Print certificate stuff */
1204         BIO_puts(bio, "------------------\n");
1205         X509_free(x);
1206     }
1207     if (q != p + 3 + clen) {
1208         BIO_puts(bio, "<TRAILING GARBAGE AFTER CERTIFICATE>\n");
1209     }
1210     *pmsg += clen + 3;
1211     *pmsglen -= clen + 3;
1212     return 1;
1213 }
1214
1215 static int ssl_print_certificates(BIO *bio, const SSL *ssl, int server,
1216                                   int indent, const unsigned char *msg,
1217                                   size_t msglen)
1218 {
1219     size_t clen;
1220
1221     if (SSL_IS_TLS13(ssl)
1222             && !ssl_print_hexbuf(bio, indent, "context", 1, &msg, &msglen))
1223         return 0;
1224
1225     if (msglen < 3)
1226         return 0;
1227     clen = (msg[0] << 16) | (msg[1] << 8) | msg[2];
1228     if (msglen != clen + 3)
1229         return 0;
1230     msg += 3;
1231     BIO_indent(bio, indent, 80);
1232     BIO_printf(bio, "certificate_list, length=%d\n", (int)clen);
1233     while (clen > 0) {
1234         if (!ssl_print_certificate(bio, indent + 2, &msg, &clen))
1235             return 0;
1236         if (!ssl_print_extensions(bio, indent + 2, server, SSL3_MT_CERTIFICATE,
1237                                   &msg, &clen))
1238             return 0;
1239
1240     }
1241     return 1;
1242 }
1243
1244 static int ssl_print_cert_request(BIO *bio, int indent, const SSL *ssl,
1245                                   const unsigned char *msg, size_t msglen)
1246 {
1247     size_t xlen;
1248     unsigned int sigalg;
1249
1250     if (SSL_IS_TLS13(ssl)) {
1251         if (!ssl_print_hexbuf(bio, indent, "request_context", 1, &msg, &msglen))
1252             return 0;
1253         if (!ssl_print_extensions(bio, indent, 1,
1254                                   SSL3_MT_CERTIFICATE_REQUEST, &msg, &msglen))
1255             return 0;
1256         return 1;
1257     } else {
1258         if (msglen < 1)
1259             return 0;
1260         xlen = msg[0];
1261         if (msglen < xlen + 1)
1262             return 0;
1263         msg++;
1264         BIO_indent(bio, indent, 80);
1265         BIO_printf(bio, "certificate_types (len=%d)\n", (int)xlen);
1266         if (!ssl_trace_list(bio, indent + 2, msg, xlen, 1, ssl_ctype_tbl))
1267             return 0;
1268         msg += xlen;
1269         msglen -= xlen + 1;
1270     }
1271     if (SSL_USE_SIGALGS(ssl)) {
1272         if (msglen < 2)
1273             return 0;
1274         xlen = (msg[0] << 8) | msg[1];
1275         if (msglen < xlen + 2 || (xlen & 1))
1276             return 0;
1277         msg += 2;
1278         msglen -= xlen + 2;
1279         BIO_indent(bio, indent, 80);
1280         BIO_printf(bio, "signature_algorithms (len=%d)\n", (int)xlen);
1281         while (xlen > 0) {
1282             BIO_indent(bio, indent + 2, 80);
1283             sigalg = (msg[0] << 8) | msg[1];
1284             BIO_printf(bio, "%s (0x%04x)\n",
1285                        ssl_trace_str(sigalg, ssl_sigalg_tbl), sigalg);
1286             xlen -= 2;
1287             msg += 2;
1288         }
1289         msg += xlen;
1290     }
1291
1292     xlen = (msg[0] << 8) | msg[1];
1293     BIO_indent(bio, indent, 80);
1294     if (msglen < xlen + 2)
1295         return 0;
1296     msg += 2;
1297     msglen -= 2 + xlen;
1298     BIO_printf(bio, "certificate_authorities (len=%d)\n", (int)xlen);
1299     while (xlen > 0) {
1300         size_t dlen;
1301         X509_NAME *nm;
1302         const unsigned char *p;
1303         if (xlen < 2)
1304             return 0;
1305         dlen = (msg[0] << 8) | msg[1];
1306         if (xlen < dlen + 2)
1307             return 0;
1308         msg += 2;
1309         BIO_indent(bio, indent + 2, 80);
1310         BIO_printf(bio, "DistinguishedName (len=%d): ", (int)dlen);
1311         p = msg;
1312         nm = d2i_X509_NAME(NULL, &p, dlen);
1313         if (!nm) {
1314             BIO_puts(bio, "<UNPARSEABLE DN>\n");
1315         } else {
1316             X509_NAME_print_ex(bio, nm, 0, XN_FLAG_ONELINE);
1317             BIO_puts(bio, "\n");
1318             X509_NAME_free(nm);
1319         }
1320         xlen -= dlen + 2;
1321         msg += dlen;
1322     }
1323     if (SSL_IS_TLS13(ssl)) {
1324         if (!ssl_print_hexbuf(bio, indent, "request_extensions", 2,
1325                               &msg, &msglen))
1326             return 0;
1327     }
1328     return msglen == 0;
1329 }
1330
1331 static int ssl_print_ticket(BIO *bio, int indent, const SSL *ssl,
1332                             const unsigned char *msg, size_t msglen)
1333 {
1334     unsigned int tick_life;
1335
1336     if (msglen == 0) {
1337         BIO_indent(bio, indent + 2, 80);
1338         BIO_puts(bio, "No Ticket\n");
1339         return 1;
1340     }
1341     if (msglen < 4)
1342         return 0;
1343     tick_life = (msg[0] << 24) | (msg[1] << 16) | (msg[2] << 8) | msg[3];
1344     msglen -= 4;
1345     msg += 4;
1346     BIO_indent(bio, indent + 2, 80);
1347     BIO_printf(bio, "ticket_lifetime_hint=%u\n", tick_life);
1348     if (SSL_IS_TLS13(ssl)) {
1349         unsigned int ticket_age_add;
1350
1351         if (msglen < 4)
1352             return 0;
1353         ticket_age_add = (msg[0] << 24) | (msg[1] << 16) | (msg[2] << 8)
1354                           | msg[3];
1355         msglen -= 4;
1356         msg += 4;
1357         BIO_indent(bio, indent + 2, 80);
1358         BIO_printf(bio, "ticket_age_add=%u\n", ticket_age_add);
1359         if (!ssl_print_hexbuf(bio, indent + 2, "ticket_nonce", 1, &msg,
1360                               &msglen))
1361             return 0;
1362     }
1363     if (!ssl_print_hexbuf(bio, indent + 2, "ticket", 2, &msg, &msglen))
1364         return 0;
1365     if (SSL_IS_TLS13(ssl)
1366             && !ssl_print_extensions(bio, indent + 2, 0,
1367                                      SSL3_MT_NEWSESSION_TICKET, &msg, &msglen))
1368         return 0;
1369     if (msglen)
1370         return 0;
1371     return 1;
1372 }
1373
1374 static int ssl_print_handshake(BIO *bio, const SSL *ssl, int server,
1375                                const unsigned char *msg, size_t msglen,
1376                                int indent)
1377 {
1378     size_t hlen;
1379     unsigned char htype;
1380
1381     if (msglen < 4)
1382         return 0;
1383     htype = msg[0];
1384     hlen = (msg[1] << 16) | (msg[2] << 8) | msg[3];
1385     BIO_indent(bio, indent, 80);
1386     BIO_printf(bio, "%s, Length=%d\n",
1387                ssl_trace_str(htype, ssl_handshake_tbl), (int)hlen);
1388     msg += 4;
1389     msglen -= 4;
1390     if (SSL_IS_DTLS(ssl)) {
1391         if (msglen < 8)
1392             return 0;
1393         BIO_indent(bio, indent, 80);
1394         BIO_printf(bio, "message_seq=%d, fragment_offset=%d, "
1395                    "fragment_length=%d\n",
1396                    (msg[0] << 8) | msg[1],
1397                    (msg[2] << 16) | (msg[3] << 8) | msg[4],
1398                    (msg[5] << 16) | (msg[6] << 8) | msg[7]);
1399         msg += 8;
1400         msglen -= 8;
1401     }
1402     if (msglen < hlen)
1403         return 0;
1404     switch (htype) {
1405     case SSL3_MT_CLIENT_HELLO:
1406         if (!ssl_print_client_hello(bio, ssl, indent + 2, msg, msglen))
1407             return 0;
1408         break;
1409
1410     case DTLS1_MT_HELLO_VERIFY_REQUEST:
1411         if (!dtls_print_hello_vfyrequest(bio, indent + 2, msg, msglen))
1412             return 0;
1413         break;
1414
1415     case SSL3_MT_SERVER_HELLO:
1416         if (!ssl_print_server_hello(bio, indent + 2, msg, msglen))
1417             return 0;
1418         break;
1419
1420     case SSL3_MT_SERVER_KEY_EXCHANGE:
1421         if (!ssl_print_server_keyex(bio, indent + 2, ssl, msg, msglen))
1422             return 0;
1423         break;
1424
1425     case SSL3_MT_CLIENT_KEY_EXCHANGE:
1426         if (!ssl_print_client_keyex(bio, indent + 2, ssl, msg, msglen))
1427             return 0;
1428         break;
1429
1430     case SSL3_MT_CERTIFICATE:
1431         if (!ssl_print_certificates(bio, ssl, server, indent + 2, msg, msglen))
1432             return 0;
1433         break;
1434
1435     case SSL3_MT_CERTIFICATE_VERIFY:
1436         if (!ssl_print_signature(bio, indent + 2, ssl, &msg, &msglen))
1437             return 0;
1438         break;
1439
1440     case SSL3_MT_CERTIFICATE_REQUEST:
1441         if (!ssl_print_cert_request(bio, indent + 2, ssl, msg, msglen))
1442             return 0;
1443         break;
1444
1445     case SSL3_MT_FINISHED:
1446         ssl_print_hex(bio, indent + 2, "verify_data", msg, msglen);
1447         break;
1448
1449     case SSL3_MT_SERVER_DONE:
1450         if (msglen != 0)
1451             ssl_print_hex(bio, indent + 2, "unexpected value", msg, msglen);
1452         break;
1453
1454     case SSL3_MT_NEWSESSION_TICKET:
1455         if (!ssl_print_ticket(bio, indent + 2, ssl, msg, msglen))
1456             return 0;
1457         break;
1458
1459     case SSL3_MT_ENCRYPTED_EXTENSIONS:
1460         if (!ssl_print_extensions(bio, indent + 2, 1,
1461                                   SSL3_MT_ENCRYPTED_EXTENSIONS, &msg, &msglen))
1462             return 0;
1463         break;
1464
1465     case SSL3_MT_KEY_UPDATE:
1466         if (msglen != 1) {
1467             ssl_print_hex(bio, indent + 2, "unexpected value", msg, msglen);
1468             return 0;
1469         }
1470         if (!ssl_trace_list(bio, indent + 2, msg, msglen, 1,
1471                             ssl_key_update_tbl))
1472             return 0;
1473         break;
1474
1475     default:
1476         BIO_indent(bio, indent + 2, 80);
1477         BIO_puts(bio, "Unsupported, hex dump follows:\n");
1478         BIO_dump_indent(bio, (const char *)msg, msglen, indent + 4);
1479     }
1480     return 1;
1481 }
1482
1483 void SSL_trace(int write_p, int version, int content_type,
1484                const void *buf, size_t msglen, SSL *ssl, void *arg)
1485 {
1486     const unsigned char *msg = buf;
1487     BIO *bio = arg;
1488
1489     switch (content_type) {
1490     case SSL3_RT_HEADER:
1491         {
1492             int hvers = msg[1] << 8 | msg[2];
1493             BIO_puts(bio, write_p ? "Sent" : "Received");
1494             BIO_printf(bio, " Record\nHeader:\n  Version = %s (0x%x)\n",
1495                        ssl_trace_str(hvers, ssl_version_tbl), hvers);
1496             if (SSL_IS_DTLS(ssl)) {
1497                 BIO_printf(bio,
1498                            "  epoch=%d, sequence_number=%04x%04x%04x\n",
1499                            (msg[3] << 8 | msg[4]),
1500                            (msg[5] << 8 | msg[6]),
1501                            (msg[7] << 8 | msg[8]), (msg[9] << 8 | msg[10]));
1502             }
1503
1504             BIO_printf(bio, "  Content Type = %s (%d)\n  Length = %d",
1505                        ssl_trace_str(msg[0], ssl_content_tbl), msg[0],
1506                        msg[msglen - 2] << 8 | msg[msglen - 1]);
1507         }
1508         break;
1509
1510     case SSL3_RT_INNER_CONTENT_TYPE:
1511         BIO_printf(bio, "  Inner Content Type = %s (%d)",
1512                    ssl_trace_str(msg[0], ssl_content_tbl), msg[0]);
1513         break;
1514
1515     case SSL3_RT_HANDSHAKE:
1516         if (!ssl_print_handshake(bio, ssl, ssl->server ? write_p : !write_p,
1517                                  msg, msglen, 4))
1518             BIO_printf(bio, "Message length parse error!\n");
1519         break;
1520
1521     case SSL3_RT_CHANGE_CIPHER_SPEC:
1522         if (msglen == 1 && msg[0] == 1)
1523             BIO_puts(bio, "    change_cipher_spec (1)\n");
1524         else
1525             ssl_print_hex(bio, 4, "unknown value", msg, msglen);
1526         break;
1527
1528     case SSL3_RT_ALERT:
1529         if (msglen != 2)
1530             BIO_puts(bio, "    Illegal Alert Length\n");
1531         else {
1532             BIO_printf(bio, "    Level=%s(%d), description=%s(%d)\n",
1533                        SSL_alert_type_string_long(msg[0] << 8),
1534                        msg[0], SSL_alert_desc_string_long(msg[1]), msg[1]);
1535         }
1536
1537     }
1538
1539     BIO_puts(bio, "\n");
1540 }
1541
1542 #endif