ssl/t1_trce.c

   1 /*
   2  * Copyright 2012-2017 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_HELLO_RETRY_REQUEST, "HelloRetryRequest"},
  91     {SSL3_MT_ENCRYPTED_EXTENSIONS, "EncryptedExtensions"},
  92     {SSL3_MT_CERTIFICATE, "Certificate"},
  93     {SSL3_MT_SERVER_KEY_EXCHANGE, "ServerKeyExchange"},
  94     {SSL3_MT_CERTIFICATE_REQUEST, "CertificateRequest"},
  95     {SSL3_MT_SERVER_DONE, "ServerHelloDone"},
  96     {SSL3_MT_CERTIFICATE_VERIFY, "CertificateVerify"},
  97     {SSL3_MT_CLIENT_KEY_EXCHANGE, "ClientKeyExchange"},
  98     {SSL3_MT_CERTIFICATE_STATUS, "CertificateStatus"},
  99     {SSL3_MT_CLIENT_KEY_EXCHANGE, "ClientKeyExchange"},
 100     {SSL3_MT_FINISHED, "Finished"},
 101     {SSL3_MT_CERTIFICATE_STATUS, "CertificateStatus"},
 102     {SSL3_MT_KEY_UPDATE, "KeyUpdate"},
 103 # ifndef OPENSSL_NO_NEXTPROTONEG
 104     {SSL3_MT_NEXT_PROTO, "NextProto"},
 105 # endif
 106     {SSL3_MT_MESSAGE_HASH, "MessageHash"}
 107 };
 108
 109 /* Cipher suites */
 110 static const ssl_trace_tbl ssl_ciphers_tbl[] = {
 111     {0x0000, "TLS_NULL_WITH_NULL_NULL"},
 112     {0x0001, "TLS_RSA_WITH_NULL_MD5"},
 113     {0x0002, "TLS_RSA_WITH_NULL_SHA"},
 114     {0x0003, "TLS_RSA_EXPORT_WITH_RC4_40_MD5"},
 115     {0x0004, "TLS_RSA_WITH_RC4_128_MD5"},
 116     {0x0005, "TLS_RSA_WITH_RC4_128_SHA"},
 117     {0x0006, "TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5"},
 118     {0x0007, "TLS_RSA_WITH_IDEA_CBC_SHA"},
 119     {0x0008, "TLS_RSA_EXPORT_WITH_DES40_CBC_SHA"},
 120     {0x0009, "TLS_RSA_WITH_DES_CBC_SHA"},
 121     {0x000A, "TLS_RSA_WITH_3DES_EDE_CBC_SHA"},
 122     {0x000B, "TLS_DH_DSS_EXPORT_WITH_DES40_CBC_SHA"},
 123     {0x000C, "TLS_DH_DSS_WITH_DES_CBC_SHA"},
 124     {0x000D, "TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA"},
 125     {0x000E, "TLS_DH_RSA_EXPORT_WITH_DES40_CBC_SHA"},
 126     {0x000F, "TLS_DH_RSA_WITH_DES_CBC_SHA"},
 127     {0x0010, "TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA"},
 128     {0x0011, "TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA"},
 129     {0x0012, "TLS_DHE_DSS_WITH_DES_CBC_SHA"},
 130     {0x0013, "TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA"},
 131     {0x0014, "TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA"},
 132     {0x0015, "TLS_DHE_RSA_WITH_DES_CBC_SHA"},
 133     {0x0016, "TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA"},
 134     {0x0017, "TLS_DH_anon_EXPORT_WITH_RC4_40_MD5"},
 135     {0x0018, "TLS_DH_anon_WITH_RC4_128_MD5"},
 136     {0x0019, "TLS_DH_anon_EXPORT_WITH_DES40_CBC_SHA"},
 137     {0x001A, "TLS_DH_anon_WITH_DES_CBC_SHA"},
 138     {0x001B, "TLS_DH_anon_WITH_3DES_EDE_CBC_SHA"},
 139     {0x001D, "SSL_FORTEZZA_KEA_WITH_FORTEZZA_CBC_SHA"},
 140     {0x001E, "SSL_FORTEZZA_KEA_WITH_RC4_128_SHA"},
 141     {0x001F, "TLS_KRB5_WITH_3DES_EDE_CBC_SHA"},
 142     {0x0020, "TLS_KRB5_WITH_RC4_128_SHA"},
 143     {0x0021, "TLS_KRB5_WITH_IDEA_CBC_SHA"},
 144     {0x0022, "TLS_KRB5_WITH_DES_CBC_MD5"},
 145     {0x0023, "TLS_KRB5_WITH_3DES_EDE_CBC_MD5"},
 146     {0x0024, "TLS_KRB5_WITH_RC4_128_MD5"},
 147     {0x0025, "TLS_KRB5_WITH_IDEA_CBC_MD5"},
 148     {0x0026, "TLS_KRB5_EXPORT_WITH_DES_CBC_40_SHA"},
 149     {0x0027, "TLS_KRB5_EXPORT_WITH_RC2_CBC_40_SHA"},
 150     {0x0028, "TLS_KRB5_EXPORT_WITH_RC4_40_SHA"},
 151     {0x0029, "TLS_KRB5_EXPORT_WITH_DES_CBC_40_MD5"},
 152     {0x002A, "TLS_KRB5_EXPORT_WITH_RC2_CBC_40_MD5"},
 153     {0x002B, "TLS_KRB5_EXPORT_WITH_RC4_40_MD5"},
 154     {0x002C, "TLS_PSK_WITH_NULL_SHA"},
 155     {0x002D, "TLS_DHE_PSK_WITH_NULL_SHA"},
 156     {0x002E, "TLS_RSA_PSK_WITH_NULL_SHA"},
 157     {0x002F, "TLS_RSA_WITH_AES_128_CBC_SHA"},
 158     {0x0030, "TLS_DH_DSS_WITH_AES_128_CBC_SHA"},
 159     {0x0031, "TLS_DH_RSA_WITH_AES_128_CBC_SHA"},
 160     {0x0032, "TLS_DHE_DSS_WITH_AES_128_CBC_SHA"},
 161     {0x0033, "TLS_DHE_RSA_WITH_AES_128_CBC_SHA"},
 162     {0x0034, "TLS_DH_anon_WITH_AES_128_CBC_SHA"},
 163     {0x0035, "TLS_RSA_WITH_AES_256_CBC_SHA"},
 164     {0x0036, "TLS_DH_DSS_WITH_AES_256_CBC_SHA"},
 165     {0x0037, "TLS_DH_RSA_WITH_AES_256_CBC_SHA"},
 166     {0x0038, "TLS_DHE_DSS_WITH_AES_256_CBC_SHA"},
 167     {0x0039, "TLS_DHE_RSA_WITH_AES_256_CBC_SHA"},
 168     {0x003A, "TLS_DH_anon_WITH_AES_256_CBC_SHA"},
 169     {0x003B, "TLS_RSA_WITH_NULL_SHA256"},
 170     {0x003C, "TLS_RSA_WITH_AES_128_CBC_SHA256"},
 171     {0x003D, "TLS_RSA_WITH_AES_256_CBC_SHA256"},
 172     {0x003E, "TLS_DH_DSS_WITH_AES_128_CBC_SHA256"},
 173     {0x003F, "TLS_DH_RSA_WITH_AES_128_CBC_SHA256"},
 174     {0x0040, "TLS_DHE_DSS_WITH_AES_128_CBC_SHA256"},
 175     {0x0041, "TLS_RSA_WITH_CAMELLIA_128_CBC_SHA"},
 176     {0x0042, "TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA"},
 177     {0x0043, "TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA"},
 178     {0x0044, "TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA"},
 179     {0x0045, "TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA"},
 180     {0x0046, "TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA"},
 181     {0x0067, "TLS_DHE_RSA_WITH_AES_128_CBC_SHA256"},
 182     {0x0068, "TLS_DH_DSS_WITH_AES_256_CBC_SHA256"},
 183     {0x0069, "TLS_DH_RSA_WITH_AES_256_CBC_SHA256"},
 184     {0x006A, "TLS_DHE_DSS_WITH_AES_256_CBC_SHA256"},
 185     {0x006B, "TLS_DHE_RSA_WITH_AES_256_CBC_SHA256"},
 186     {0x006C, "TLS_DH_anon_WITH_AES_128_CBC_SHA256"},
 187     {0x006D, "TLS_DH_anon_WITH_AES_256_CBC_SHA256"},
 188     {0x0084, "TLS_RSA_WITH_CAMELLIA_256_CBC_SHA"},
 189     {0x0085, "TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA"},
 190     {0x0086, "TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA"},
 191     {0x0087, "TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA"},
 192     {0x0088, "TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA"},
 193     {0x0089, "TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA"},
 194     {0x008A, "TLS_PSK_WITH_RC4_128_SHA"},
 195     {0x008B, "TLS_PSK_WITH_3DES_EDE_CBC_SHA"},
 196     {0x008C, "TLS_PSK_WITH_AES_128_CBC_SHA"},
 197     {0x008D, "TLS_PSK_WITH_AES_256_CBC_SHA"},
 198     {0x008E, "TLS_DHE_PSK_WITH_RC4_128_SHA"},
 199     {0x008F, "TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA"},
 200     {0x0090, "TLS_DHE_PSK_WITH_AES_128_CBC_SHA"},
 201     {0x0091, "TLS_DHE_PSK_WITH_AES_256_CBC_SHA"},
 202     {0x0092, "TLS_RSA_PSK_WITH_RC4_128_SHA"},
 203     {0x0093, "TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA"},
 204     {0x0094, "TLS_RSA_PSK_WITH_AES_128_CBC_SHA"},
 205     {0x0095, "TLS_RSA_PSK_WITH_AES_256_CBC_SHA"},
 206     {0x0096, "TLS_RSA_WITH_SEED_CBC_SHA"},
 207     {0x0097, "TLS_DH_DSS_WITH_SEED_CBC_SHA"},
 208     {0x0098, "TLS_DH_RSA_WITH_SEED_CBC_SHA"},
 209     {0x0099, "TLS_DHE_DSS_WITH_SEED_CBC_SHA"},
 210     {0x009A, "TLS_DHE_RSA_WITH_SEED_CBC_SHA"},
 211     {0x009B, "TLS_DH_anon_WITH_SEED_CBC_SHA"},
 212     {0x009C, "TLS_RSA_WITH_AES_128_GCM_SHA256"},
 213     {0x009D, "TLS_RSA_WITH_AES_256_GCM_SHA384"},
 214     {0x009E, "TLS_DHE_RSA_WITH_AES_128_GCM_SHA256"},
 215     {0x009F, "TLS_DHE_RSA_WITH_AES_256_GCM_SHA384"},
 216     {0x00A0, "TLS_DH_RSA_WITH_AES_128_GCM_SHA256"},
 217     {0x00A1, "TLS_DH_RSA_WITH_AES_256_GCM_SHA384"},
 218     {0x00A2, "TLS_DHE_DSS_WITH_AES_128_GCM_SHA256"},
 219     {0x00A3, "TLS_DHE_DSS_WITH_AES_256_GCM_SHA384"},
 220     {0x00A4, "TLS_DH_DSS_WITH_AES_128_GCM_SHA256"},
 221     {0x00A5, "TLS_DH_DSS_WITH_AES_256_GCM_SHA384"},
 222     {0x00A6, "TLS_DH_anon_WITH_AES_128_GCM_SHA256"},
 223     {0x00A7, "TLS_DH_anon_WITH_AES_256_GCM_SHA384"},
 224     {0x00A8, "TLS_PSK_WITH_AES_128_GCM_SHA256"},
 225     {0x00A9, "TLS_PSK_WITH_AES_256_GCM_SHA384"},
 226     {0x00AA, "TLS_DHE_PSK_WITH_AES_128_GCM_SHA256"},
 227     {0x00AB, "TLS_DHE_PSK_WITH_AES_256_GCM_SHA384"},
 228     {0x00AC, "TLS_RSA_PSK_WITH_AES_128_GCM_SHA256"},
 229     {0x00AD, "TLS_RSA_PSK_WITH_AES_256_GCM_SHA384"},
 230     {0x00AE, "TLS_PSK_WITH_AES_128_CBC_SHA256"},
 231     {0x00AF, "TLS_PSK_WITH_AES_256_CBC_SHA384"},
 232     {0x00B0, "TLS_PSK_WITH_NULL_SHA256"},
 233     {0x00B1, "TLS_PSK_WITH_NULL_SHA384"},
 234     {0x00B2, "TLS_DHE_PSK_WITH_AES_128_CBC_SHA256"},
 235     {0x00B3, "TLS_DHE_PSK_WITH_AES_256_CBC_SHA384"},
 236     {0x00B4, "TLS_DHE_PSK_WITH_NULL_SHA256"},
 237     {0x00B5, "TLS_DHE_PSK_WITH_NULL_SHA384"},
 238     {0x00B6, "TLS_RSA_PSK_WITH_AES_128_CBC_SHA256"},
 239     {0x00B7, "TLS_RSA_PSK_WITH_AES_256_CBC_SHA384"},
 240     {0x00B8, "TLS_RSA_PSK_WITH_NULL_SHA256"},
 241     {0x00B9, "TLS_RSA_PSK_WITH_NULL_SHA384"},
 242     {0x00BA, "TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256"},
 243     {0x00BB, "TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA256"},
 244     {0x00BC, "TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA256"},
 245     {0x00BD, "TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA256"},
 246     {0x00BE, "TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256"},
 247     {0x00BF, "TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA256"},
 248     {0x00C0, "TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256"},
 249     {0x00C1, "TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA256"},
 250     {0x00C2, "TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA256"},
 251     {0x00C3, "TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA256"},
 252     {0x00C4, "TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256"},
 253     {0x00C5, "TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA256"},
 254     {0x00FF, "TLS_EMPTY_RENEGOTIATION_INFO_SCSV"},
 255     {0x5600, "TLS_FALLBACK_SCSV"},
 256     {0xC001, "TLS_ECDH_ECDSA_WITH_NULL_SHA"},
 257     {0xC002, "TLS_ECDH_ECDSA_WITH_RC4_128_SHA"},
 258     {0xC003, "TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA"},
 259     {0xC004, "TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA"},
 260     {0xC005, "TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA"},
 261     {0xC006, "TLS_ECDHE_ECDSA_WITH_NULL_SHA"},
 262     {0xC007, "TLS_ECDHE_ECDSA_WITH_RC4_128_SHA"},
 263     {0xC008, "TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA"},
 264     {0xC009, "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA"},
 265     {0xC00A, "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA"},
 266     {0xC00B, "TLS_ECDH_RSA_WITH_NULL_SHA"},
 267     {0xC00C, "TLS_ECDH_RSA_WITH_RC4_128_SHA"},
 268     {0xC00D, "TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA"},
 269     {0xC00E, "TLS_ECDH_RSA_WITH_AES_128_CBC_SHA"},
 270     {0xC00F, "TLS_ECDH_RSA_WITH_AES_256_CBC_SHA"},
 271     {0xC010, "TLS_ECDHE_RSA_WITH_NULL_SHA"},
 272     {0xC011, "TLS_ECDHE_RSA_WITH_RC4_128_SHA"},
 273     {0xC012, "TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA"},
 274     {0xC013, "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA"},
 275     {0xC014, "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA"},
 276     {0xC015, "TLS_ECDH_anon_WITH_NULL_SHA"},
 277     {0xC016, "TLS_ECDH_anon_WITH_RC4_128_SHA"},
 278     {0xC017, "TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA"},
 279     {0xC018, "TLS_ECDH_anon_WITH_AES_128_CBC_SHA"},
 280     {0xC019, "TLS_ECDH_anon_WITH_AES_256_CBC_SHA"},
 281     {0xC01A, "TLS_SRP_SHA_WITH_3DES_EDE_CBC_SHA"},
 282     {0xC01B, "TLS_SRP_SHA_RSA_WITH_3DES_EDE_CBC_SHA"},
 283     {0xC01C, "TLS_SRP_SHA_DSS_WITH_3DES_EDE_CBC_SHA"},
 284     {0xC01D, "TLS_SRP_SHA_WITH_AES_128_CBC_SHA"},
 285     {0xC01E, "TLS_SRP_SHA_RSA_WITH_AES_128_CBC_SHA"},
 286     {0xC01F, "TLS_SRP_SHA_DSS_WITH_AES_128_CBC_SHA"},
 287     {0xC020, "TLS_SRP_SHA_WITH_AES_256_CBC_SHA"},
 288     {0xC021, "TLS_SRP_SHA_RSA_WITH_AES_256_CBC_SHA"},
 289     {0xC022, "TLS_SRP_SHA_DSS_WITH_AES_256_CBC_SHA"},
 290     {0xC023, "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256"},
 291     {0xC024, "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384"},
 292     {0xC025, "TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256"},
 293     {0xC026, "TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384"},
 294     {0xC027, "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256"},
 295     {0xC028, "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384"},
 296     {0xC029, "TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256"},
 297     {0xC02A, "TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384"},
 298     {0xC02B, "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256"},
 299     {0xC02C, "TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384"},
 300     {0xC02D, "TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256"},
 301     {0xC02E, "TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384"},
 302     {0xC02F, "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256"},
 303     {0xC030, "TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384"},
 304     {0xC031, "TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256"},
 305     {0xC032, "TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384"},
 306     {0xC033, "TLS_ECDHE_PSK_WITH_RC4_128_SHA"},
 307     {0xC034, "TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA"},
 308     {0xC035, "TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA"},
 309     {0xC036, "TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA"},
 310     {0xC037, "TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256"},
 311     {0xC038, "TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384"},
 312     {0xC039, "TLS_ECDHE_PSK_WITH_NULL_SHA"},
 313     {0xC03A, "TLS_ECDHE_PSK_WITH_NULL_SHA256"},
 314     {0xC03B, "TLS_ECDHE_PSK_WITH_NULL_SHA384"},
 315     {0xC03C, "TLS_RSA_WITH_ARIA_128_CBC_SHA256"},
 316     {0xC03D, "TLS_RSA_WITH_ARIA_256_CBC_SHA384"},
 317     {0xC03E, "TLS_DH_DSS_WITH_ARIA_128_CBC_SHA256"},
 318     {0xC03F, "TLS_DH_DSS_WITH_ARIA_256_CBC_SHA384"},
 319     {0xC040, "TLS_DH_RSA_WITH_ARIA_128_CBC_SHA256"},
 320     {0xC041, "TLS_DH_RSA_WITH_ARIA_256_CBC_SHA384"},
 321     {0xC042, "TLS_DHE_DSS_WITH_ARIA_128_CBC_SHA256"},
 322     {0xC043, "TLS_DHE_DSS_WITH_ARIA_256_CBC_SHA384"},
 323     {0xC044, "TLS_DHE_RSA_WITH_ARIA_128_CBC_SHA256"},
 324     {0xC045, "TLS_DHE_RSA_WITH_ARIA_256_CBC_SHA384"},
 325     {0xC046, "TLS_DH_anon_WITH_ARIA_128_CBC_SHA256"},
 326     {0xC047, "TLS_DH_anon_WITH_ARIA_256_CBC_SHA384"},
 327     {0xC048, "TLS_ECDHE_ECDSA_WITH_ARIA_128_CBC_SHA256"},
 328     {0xC049, "TLS_ECDHE_ECDSA_WITH_ARIA_256_CBC_SHA384"},
 329     {0xC04A, "TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256"},
 330     {0xC04B, "TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384"},
 331     {0xC04C, "TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256"},
 332     {0xC04D, "TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384"},
 333     {0xC04E, "TLS_ECDH_RSA_WITH_ARIA_128_CBC_SHA256"},
 334     {0xC04F, "TLS_ECDH_RSA_WITH_ARIA_256_CBC_SHA384"},
 335     {0xC050, "TLS_RSA_WITH_ARIA_128_GCM_SHA256"},
 336     {0xC051, "TLS_RSA_WITH_ARIA_256_GCM_SHA384"},
 337     {0xC052, "TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256"},
 338     {0xC053, "TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384"},
 339     {0xC054, "TLS_DH_RSA_WITH_ARIA_128_GCM_SHA256"},
 340     {0xC055, "TLS_DH_RSA_WITH_ARIA_256_GCM_SHA384"},
 341     {0xC056, "TLS_DHE_DSS_WITH_ARIA_128_GCM_SHA256"},
 342     {0xC057, "TLS_DHE_DSS_WITH_ARIA_256_GCM_SHA384"},
 343     {0xC058, "TLS_DH_DSS_WITH_ARIA_128_GCM_SHA256"},
 344     {0xC059, "TLS_DH_DSS_WITH_ARIA_256_GCM_SHA384"},
 345     {0xC05A, "TLS_DH_anon_WITH_ARIA_128_GCM_SHA256"},
 346     {0xC05B, "TLS_DH_anon_WITH_ARIA_256_GCM_SHA384"},
 347     {0xC05C, "TLS_ECDHE_ECDSA_WITH_ARIA_128_GCM_SHA256"},
 348     {0xC05D, "TLS_ECDHE_ECDSA_WITH_ARIA_256_GCM_SHA384"},
 349     {0xC05E, "TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256"},
 350     {0xC05F, "TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384"},
 351     {0xC060, "TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256"},
 352     {0xC061, "TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384"},
 353     {0xC062, "TLS_ECDH_RSA_WITH_ARIA_128_GCM_SHA256"},
 354     {0xC063, "TLS_ECDH_RSA_WITH_ARIA_256_GCM_SHA384"},
 355     {0xC064, "TLS_PSK_WITH_ARIA_128_CBC_SHA256"},
 356     {0xC065, "TLS_PSK_WITH_ARIA_256_CBC_SHA384"},
 357     {0xC066, "TLS_DHE_PSK_WITH_ARIA_128_CBC_SHA256"},
 358     {0xC067, "TLS_DHE_PSK_WITH_ARIA_256_CBC_SHA384"},
 359     {0xC068, "TLS_RSA_PSK_WITH_ARIA_128_CBC_SHA256"},
 360     {0xC069, "TLS_RSA_PSK_WITH_ARIA_256_CBC_SHA384"},
 361     {0xC06A, "TLS_PSK_WITH_ARIA_128_GCM_SHA256"},
 362     {0xC06B, "TLS_PSK_WITH_ARIA_256_GCM_SHA384"},
 363     {0xC06C, "TLS_DHE_PSK_WITH_ARIA_128_GCM_SHA256"},
 364     {0xC06D, "TLS_DHE_PSK_WITH_ARIA_256_GCM_SHA384"},
 365     {0xC06E, "TLS_RSA_PSK_WITH_ARIA_128_GCM_SHA256"},
 366     {0xC06F, "TLS_RSA_PSK_WITH_ARIA_256_GCM_SHA384"},
 367     {0xC070, "TLS_ECDHE_PSK_WITH_ARIA_128_CBC_SHA256"},
 368     {0xC071, "TLS_ECDHE_PSK_WITH_ARIA_256_CBC_SHA384"},
 369     {0xC072, "TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256"},
 370     {0xC073, "TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384"},
 371     {0xC074, "TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256"},
 372     {0xC075, "TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384"},
 373     {0xC076, "TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256"},
 374     {0xC077, "TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384"},
 375     {0xC078, "TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256"},
 376     {0xC079, "TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384"},
 377     {0xC07A, "TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256"},
 378     {0xC07B, "TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384"},
 379     {0xC07C, "TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256"},
 380     {0xC07D, "TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384"},
 381     {0xC07E, "TLS_DH_RSA_WITH_CAMELLIA_128_GCM_SHA256"},
 382     {0xC07F, "TLS_DH_RSA_WITH_CAMELLIA_256_GCM_SHA384"},
 383     {0xC080, "TLS_DHE_DSS_WITH_CAMELLIA_128_GCM_SHA256"},
 384     {0xC081, "TLS_DHE_DSS_WITH_CAMELLIA_256_GCM_SHA384"},
 385     {0xC082, "TLS_DH_DSS_WITH_CAMELLIA_128_GCM_SHA256"},
 386     {0xC083, "TLS_DH_DSS_WITH_CAMELLIA_256_GCM_SHA384"},
 387     {0xC084, "TLS_DH_anon_WITH_CAMELLIA_128_GCM_SHA256"},
 388     {0xC085, "TLS_DH_anon_WITH_CAMELLIA_256_GCM_SHA384"},
 389     {0xC086, "TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256"},
 390     {0xC087, "TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384"},
 391     {0xC088, "TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256"},
 392     {0xC089, "TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384"},
 393     {0xC08A, "TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256"},
 394     {0xC08B, "TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384"},
 395     {0xC08C, "TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256"},
 396     {0xC08D, "TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384"},
 397     {0xC08E, "TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256"},
 398     {0xC08F, "TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384"},
 399     {0xC090, "TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256"},
 400     {0xC091, "TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384"},
 401     {0xC092, "TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256"},
 402     {0xC093, "TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384"},
 403     {0xC094, "TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256"},
 404     {0xC095, "TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384"},
 405     {0xC096, "TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256"},
 406     {0xC097, "TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384"},
 407     {0xC098, "TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256"},
 408     {0xC099, "TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384"},
 409     {0xC09A, "TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256"},
 410     {0xC09B, "TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384"},
 411     {0xC09C, "TLS_RSA_WITH_AES_128_CCM"},
 412     {0xC09D, "TLS_RSA_WITH_AES_256_CCM"},
 413     {0xC09E, "TLS_DHE_RSA_WITH_AES_128_CCM"},
 414     {0xC09F, "TLS_DHE_RSA_WITH_AES_256_CCM"},
 415     {0xC0A0, "TLS_RSA_WITH_AES_128_CCM_8"},
 416     {0xC0A1, "TLS_RSA_WITH_AES_256_CCM_8"},
 417     {0xC0A2, "TLS_DHE_RSA_WITH_AES_128_CCM_8"},
 418     {0xC0A3, "TLS_DHE_RSA_WITH_AES_256_CCM_8"},
 419     {0xC0A4, "TLS_PSK_WITH_AES_128_CCM"},
 420     {0xC0A5, "TLS_PSK_WITH_AES_256_CCM"},
 421     {0xC0A6, "TLS_DHE_PSK_WITH_AES_128_CCM"},
 422     {0xC0A7, "TLS_DHE_PSK_WITH_AES_256_CCM"},
 423     {0xC0A8, "TLS_PSK_WITH_AES_128_CCM_8"},
 424     {0xC0A9, "TLS_PSK_WITH_AES_256_CCM_8"},
 425     {0xC0AA, "TLS_PSK_DHE_WITH_AES_128_CCM_8"},
 426     {0xC0AB, "TLS_PSK_DHE_WITH_AES_256_CCM_8"},
 427     {0xC0AC, "TLS_ECDHE_ECDSA_WITH_AES_128_CCM"},
 428     {0xC0AD, "TLS_ECDHE_ECDSA_WITH_AES_256_CCM"},
 429     {0xC0AE, "TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8"},
 430     {0xC0AF, "TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8"},
 431     {0xCCA8, "TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256"},
 432     {0xCCA9, "TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256"},
 433     {0xCCAA, "TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256"},
 434     {0xCCAB, "TLS_PSK_WITH_CHACHA20_POLY1305_SHA256"},
 435     {0xCCAC, "TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256"},
 436     {0xCCAD, "TLS_DHE_PSK_WITH_CHACHA20_POLY1305_SHA256"},
 437     {0xCCAE, "TLS_RSA_PSK_WITH_CHACHA20_POLY1305_SHA256"},
 438     {0x1301, "TLS_AES_128_GCM_SHA256"},
 439     {0x1302, "TLS_AES_256_GCM_SHA384"},
 440     {0x1303, "TLS_CHACHA20_POLY1305_SHA256"},
 441     {0x1304, "TLS_AES_128_CCM_SHA256"},
 442     {0x1305, "TLS_AES_128_CCM_8_SHA256"},
 443     {0xFEFE, "SSL_RSA_FIPS_WITH_DES_CBC_SHA"},
 444     {0xFEFF, "SSL_RSA_FIPS_WITH_3DES_EDE_CBC_SHA"},
 445 };
 446
 447 /* Compression methods */
 448 static const ssl_trace_tbl ssl_comp_tbl[] = {
 449     {0x0000, "No Compression"},
 450     {0x0001, "Zlib Compression"}
 451 };
 452
 453 /* Extensions */
 454 static const ssl_trace_tbl ssl_exts_tbl[] = {
 455     {TLSEXT_TYPE_server_name, "server_name"},
 456     {TLSEXT_TYPE_max_fragment_length, "max_fragment_length"},
 457     {TLSEXT_TYPE_client_certificate_url, "client_certificate_url"},
 458     {TLSEXT_TYPE_trusted_ca_keys, "trusted_ca_keys"},
 459     {TLSEXT_TYPE_truncated_hmac, "truncated_hmac"},
 460     {TLSEXT_TYPE_status_request, "status_request"},
 461     {TLSEXT_TYPE_user_mapping, "user_mapping"},
 462     {TLSEXT_TYPE_client_authz, "client_authz"},
 463     {TLSEXT_TYPE_server_authz, "server_authz"},
 464     {TLSEXT_TYPE_cert_type, "cert_type"},
 465     {TLSEXT_TYPE_key_share, "key_share"},
 466     {TLSEXT_TYPE_psk, "psk"},
 467     {TLSEXT_TYPE_psk_kex_modes, "psk_key_exchange_modes"},
 468     {TLSEXT_TYPE_supported_groups, "supported_groups"},
 469     {TLSEXT_TYPE_ec_point_formats, "ec_point_formats"},
 470     {TLSEXT_TYPE_srp, "srp"},
 471     {TLSEXT_TYPE_signature_algorithms, "signature_algorithms"},
 472     {TLSEXT_TYPE_use_srtp, "use_srtp"},
 473     {TLSEXT_TYPE_session_ticket, "session_ticket"},
 474     {TLSEXT_TYPE_supported_versions, "supported_versions"},
 475     {TLSEXT_TYPE_renegotiate, "renegotiate"},
 476 # ifndef OPENSSL_NO_NEXTPROTONEG
 477     {TLSEXT_TYPE_next_proto_neg, "next_proto_neg"},
 478 # endif
 479     {TLSEXT_TYPE_application_layer_protocol_negotiation,
 480      "application_layer_protocol_negotiation"},
 481     {TLSEXT_TYPE_signed_certificate_timestamp, "signed_certificate_timestamps"},
 482     {TLSEXT_TYPE_padding, "padding"},
 483     {TLSEXT_TYPE_encrypt_then_mac, "encrypt_then_mac"},
 484     {TLSEXT_TYPE_extended_master_secret, "extended_master_secret"},
 485     {TLSEXT_TYPE_early_data, "early_data"}
 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     {256, "ffdhe2048"},
 519     {257, "ffdhe3072"},
 520     {258, "ffdhe4096"},
 521     {259, "ffdhe6144"},
 522     {260, "ffdhe8192"},
 523     {0xFF01, "arbitrary_explicit_prime_curves"},
 524     {0xFF02, "arbitrary_explicit_char2_curves"}
 525 };
 526
 527 static const ssl_trace_tbl ssl_point_tbl[] = {
 528     {0, "uncompressed"},
 529     {1, "ansiX962_compressed_prime"},
 530     {2, "ansiX962_compressed_char2"}
 531 };
 532
 533 static const ssl_trace_tbl ssl_mfl_tbl[] = {
 534     {0, "disabled"},
 535     {1, "max_fragment_length := 2^9 (512 bytes)"},
 536     {2, "max_fragment_length := 2^10 (1024 bytes)"},
 537     {3, "max_fragment_length := 2^11 (2048 bytes)"},
 538     {4, "max_fragment_length := 2^12 (4096 bytes)"}
 539 };
 540
 541 static const ssl_trace_tbl ssl_sigalg_tbl[] = {
 542     {TLSEXT_SIGALG_ecdsa_secp256r1_sha256, "ecdsa_secp256r1_sha256"},
 543     {TLSEXT_SIGALG_ecdsa_secp384r1_sha384, "ecdsa_secp384r1_sha384"},
 544     {TLSEXT_SIGALG_ecdsa_secp521r1_sha512, "ecdsa_secp521r1_sha512"},
 545     {TLSEXT_SIGALG_ecdsa_sha224, "ecdsa_sha224"},
 546     {TLSEXT_SIGALG_ed25519, "ed25519"},
 547     {TLSEXT_SIGALG_ecdsa_sha1, "ecdsa_sha1"},
 548     {TLSEXT_SIGALG_rsa_pss_sha256, "rsa_pss_sha256"},
 549     {TLSEXT_SIGALG_rsa_pss_sha384, "rsa_pss_sha384"},
 550     {TLSEXT_SIGALG_rsa_pss_sha512, "rsa_pss_sha512"},
 551     {TLSEXT_SIGALG_rsa_pkcs1_sha256, "rsa_pkcs1_sha256"},
 552     {TLSEXT_SIGALG_rsa_pkcs1_sha384, "rsa_pkcs1_sha384"},
 553     {TLSEXT_SIGALG_rsa_pkcs1_sha512, "rsa_pkcs1_sha512"},
 554     {TLSEXT_SIGALG_rsa_pkcs1_sha224, "rsa_pkcs1_sha224"},
 555     {TLSEXT_SIGALG_rsa_pkcs1_sha1, "rsa_pkcs1_sha1"},
 556     {TLSEXT_SIGALG_dsa_sha256, "dsa_sha256"},
 557     {TLSEXT_SIGALG_dsa_sha384, "dsa_sha384"},
 558     {TLSEXT_SIGALG_dsa_sha512, "dsa_sha512"},
 559     {TLSEXT_SIGALG_dsa_sha224, "dsa_sha224"},
 560     {TLSEXT_SIGALG_dsa_sha1, "dsa_sha1"},
 561     {TLSEXT_SIGALG_gostr34102012_256_gostr34112012_256, "gost2012_256"},
 562     {TLSEXT_SIGALG_gostr34102012_512_gostr34112012_512, "gost2012_512"},
 563     {TLSEXT_SIGALG_gostr34102001_gostr3411, "gost2001_gost94"},
 564 };
 565
 566 static const ssl_trace_tbl ssl_ctype_tbl[] = {
 567     {1, "rsa_sign"},
 568     {2, "dss_sign"},
 569     {3, "rsa_fixed_dh"},
 570     {4, "dss_fixed_dh"},
 571     {5, "rsa_ephemeral_dh"},
 572     {6, "dss_ephemeral_dh"},
 573     {20, "fortezza_dms"},
 574     {64, "ecdsa_sign"},
 575     {65, "rsa_fixed_ecdh"},
 576     {66, "ecdsa_fixed_ecdh"}
 577 };
 578
 579 static const ssl_trace_tbl ssl_psk_kex_modes_tbl[] = {
 580     {TLSEXT_KEX_MODE_KE, "psk_ke"},
 581     {TLSEXT_KEX_MODE_KE_DHE, "psk_dhe_ke"}
 582 };
 583
 584 static const ssl_trace_tbl ssl_key_update_tbl[] = {
 585     {SSL_KEY_UPDATE_NOT_REQUESTED, "update_not_requested"},
 586     {SSL_KEY_UPDATE_REQUESTED, "update_requested"}
 587 };
 588
 589 static void ssl_print_hex(BIO *bio, int indent, const char *name,
 590                           const unsigned char *msg, size_t msglen)
 591 {
 592     size_t i;
 593
 594     BIO_indent(bio, indent, 80);
 595     BIO_printf(bio, "%s (len=%d): ", name, (int)msglen);
 596     for (i = 0; i < msglen; i++)
 597         BIO_printf(bio, "%02X", msg[i]);
 598     BIO_puts(bio, "\n");
 599 }
 600
 601 static int ssl_print_hexbuf(BIO *bio, int indent, const char *name, size_t nlen,
 602                             const unsigned char **pmsg, size_t *pmsglen)
 603 {
 604     size_t blen;
 605     const unsigned char *p = *pmsg;
 606
 607     if (*pmsglen < nlen)
 608         return 0;
 609     blen = p[0];
 610     if (nlen > 1)
 611         blen = (blen << 8) | p[1];
 612     if (*pmsglen < nlen + blen)
 613         return 0;
 614     p += nlen;
 615     ssl_print_hex(bio, indent, name, p, blen);
 616     *pmsg += blen + nlen;
 617     *pmsglen -= blen + nlen;
 618     return 1;
 619 }
 620
 621 static int ssl_print_version(BIO *bio, int indent, const char *name,
 622                              const unsigned char **pmsg, size_t *pmsglen,
 623                              unsigned int *version)
 624 {
 625     int vers;
 626
 627     if (*pmsglen < 2)
 628         return 0;
 629     vers = ((*pmsg)[0] << 8) | (*pmsg)[1];
 630     if (version != NULL) {
 631         /* TODO(TLS1.3): Remove the draft conditional here before release */
 632         *version = (vers == TLS1_3_VERSION_DRAFT) ? TLS1_3_VERSION : vers;
 633     }
 634     BIO_indent(bio, indent, 80);
 635     BIO_printf(bio, "%s=0x%x (%s)\n",
 636                name, vers, ssl_trace_str(vers, ssl_version_tbl));
 637     *pmsg += 2;
 638     *pmsglen -= 2;
 639     return 1;
 640 }
 641
 642 static int ssl_print_random(BIO *bio, int indent,
 643                             const unsigned char **pmsg, size_t *pmsglen)
 644 {
 645     unsigned int tm;
 646     const unsigned char *p = *pmsg;
 647
 648     if (*pmsglen < 32)
 649         return 0;
 650     tm = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3];
 651     p += 4;
 652     BIO_indent(bio, indent, 80);
 653     BIO_puts(bio, "Random:\n");
 654     BIO_indent(bio, indent + 2, 80);
 655     BIO_printf(bio, "gmt_unix_time=0x%08X\n", tm);
 656     ssl_print_hex(bio, indent + 2, "random_bytes", p, 28);
 657     *pmsg += 32;
 658     *pmsglen -= 32;
 659     return 1;
 660 }
 661
 662 static int ssl_print_signature(BIO *bio, int indent, const SSL *ssl,
 663                                const unsigned char **pmsg, size_t *pmsglen)
 664 {
 665     if (*pmsglen < 2)
 666         return 0;
 667     if (SSL_USE_SIGALGS(ssl)) {
 668         const unsigned char *p = *pmsg;
 669         unsigned int sigalg = (p[0] << 8) | p[1];
 670
 671         BIO_indent(bio, indent, 80);
 672         BIO_printf(bio, "Signature Algorithm: %s (0x%04x)\n",
 673                    ssl_trace_str(sigalg, ssl_sigalg_tbl), sigalg);
 674         *pmsg += 2;
 675         *pmsglen -= 2;
 676     }
 677     return ssl_print_hexbuf(bio, indent, "Signature", 2, pmsg, pmsglen);
 678 }
 679
 680 static int ssl_print_extension(BIO *bio, int indent, int server,
 681                                unsigned char mt, int extype,
 682                                const unsigned char *ext, size_t extlen)
 683 {
 684     size_t xlen, share_len;
 685     unsigned int sigalg;
 686     uint32_t max_early_data;
 687
 688     BIO_indent(bio, indent, 80);
 689     BIO_printf(bio, "extension_type=%s(%d), length=%d\n",
 690                ssl_trace_str(extype, ssl_exts_tbl), extype, (int)extlen);
 691     switch (extype) {
 692     case TLSEXT_TYPE_max_fragment_length:
 693         if (extlen < 1)
 694             return 0;
 695         xlen = extlen;
 696         return ssl_trace_list(bio, indent + 2, ext, xlen, 1, ssl_mfl_tbl);
 697
 698     case TLSEXT_TYPE_ec_point_formats:
 699         if (extlen < 1)
 700             return 0;
 701         xlen = ext[0];
 702         if (extlen != xlen + 1)
 703             return 0;
 704         return ssl_trace_list(bio, indent + 2, ext + 1, xlen, 1, ssl_point_tbl);
 705
 706     case TLSEXT_TYPE_supported_groups:
 707         if (extlen < 2)
 708             return 0;
 709         xlen = (ext[0] << 8) | ext[1];
 710         if (extlen != xlen + 2)
 711             return 0;
 712         return ssl_trace_list(bio, indent + 2, ext + 2, xlen, 2, ssl_groups_tbl);
 713     case TLSEXT_TYPE_application_layer_protocol_negotiation:
 714         if (extlen < 2)
 715             return 0;
 716         xlen = (ext[0] << 8) | ext[1];
 717         if (extlen != xlen + 2)
 718             return 0;
 719         ext += 2;
 720         while (xlen > 0) {
 721             size_t plen = *ext++;
 722
 723             if (plen > xlen + 1)
 724                 return 0;
 725             BIO_indent(bio, indent + 2, 80);
 726             BIO_write(bio, ext, plen);
 727             BIO_puts(bio, "\n");
 728             ext += plen;
 729             xlen -= plen + 1;
 730         }
 731         return 1;
 732
 733     case TLSEXT_TYPE_signature_algorithms:
 734
 735         if (extlen < 2)
 736             return 0;
 737         xlen = (ext[0] << 8) | ext[1];
 738         if (extlen != xlen + 2)
 739             return 0;
 740         if (xlen & 1)
 741             return 0;
 742         ext += 2;
 743         while (xlen > 0) {
 744             BIO_indent(bio, indent + 2, 80);
 745             sigalg = (ext[0] << 8) | ext[1];
 746             BIO_printf(bio, "%s (0x%04x)\n",
 747                        ssl_trace_str(sigalg, ssl_sigalg_tbl), sigalg);
 748             xlen -= 2;
 749             ext += 2;
 750         }
 751         break;
 752
 753     case TLSEXT_TYPE_renegotiate:
 754         if (extlen < 1)
 755             return 0;
 756         xlen = ext[0];
 757         if (xlen + 1 != extlen)
 758             return 0;
 759         ext++;
 760         if (xlen) {
 761             if (server) {
 762                 if (xlen & 1)
 763                     return 0;
 764                 xlen >>= 1;
 765             }
 766             ssl_print_hex(bio, indent + 4, "client_verify_data", ext, xlen);
 767             if (server) {
 768                 ext += xlen;
 769                 ssl_print_hex(bio, indent + 4, "server_verify_data", ext, xlen);
 770             }
 771         } else {
 772             BIO_indent(bio, indent + 4, 80);
 773             BIO_puts(bio, "<EMPTY>\n");
 774         }
 775         break;
 776
 777     case TLSEXT_TYPE_heartbeat:
 778         return 0;
 779
 780     case TLSEXT_TYPE_session_ticket:
 781         if (extlen != 0)
 782             ssl_print_hex(bio, indent + 4, "ticket", ext, extlen);
 783         break;
 784
 785     case TLSEXT_TYPE_key_share:
 786         if (mt == SSL3_MT_HELLO_RETRY_REQUEST) {
 787             int group_id;
 788
 789             if (extlen != 2)
 790                 return 0;
 791             group_id = (ext[0] << 8) | ext[1];
 792             BIO_indent(bio, indent + 4, 80);
 793             BIO_printf(bio, "NamedGroup: %s (%d)\n",
 794                        ssl_trace_str(group_id, ssl_groups_tbl), group_id);
 795             break;
 796         }
 797         if (extlen < 2)
 798             return 0;
 799         if (server) {
 800             xlen = extlen;
 801         } else {
 802             xlen = (ext[0] << 8) | ext[1];
 803             if (extlen != xlen + 2)
 804                 return 0;
 805             ext += 2;
 806         }
 807         for (; xlen > 0; ext += share_len, xlen -= share_len) {
 808             int group_id;
 809
 810             if (xlen < 4)
 811                 return 0;
 812             group_id = (ext[0] << 8) | ext[1];
 813             share_len = (ext[2] << 8) | ext[3];
 814             ext += 4;
 815             xlen -= 4;
 816             if (xlen < share_len)
 817                 return 0;
 818             BIO_indent(bio, indent + 4, 80);
 819             BIO_printf(bio, "NamedGroup: %s (%d)\n",
 820                        ssl_trace_str(group_id, ssl_groups_tbl), group_id);
 821             ssl_print_hex(bio, indent + 4, "key_exchange: ", ext, share_len);
 822         }
 823         break;
 824
 825     case TLSEXT_TYPE_supported_versions:
 826         if (extlen < 1)
 827             return 0;
 828         xlen = ext[0];
 829         if (extlen != xlen + 1)
 830             return 0;
 831         return ssl_trace_list(bio, indent + 2, ext + 1, xlen, 2,
 832                               ssl_version_tbl);
 833
 834     case TLSEXT_TYPE_psk_kex_modes:
 835         if (extlen < 1)
 836             return 0;
 837         xlen = ext[0];
 838         if (extlen != xlen + 1)
 839             return 0;
 840         return ssl_trace_list(bio, indent + 2, ext + 1, xlen, 1,
 841                               ssl_psk_kex_modes_tbl);
 842
 843     case TLSEXT_TYPE_early_data:
 844         if (mt != SSL3_MT_NEWSESSION_TICKET)
 845             break;
 846         if (extlen != 4)
 847             return 0;
 848         max_early_data = (ext[0] << 24) | (ext[1] << 16) | (ext[2] << 8)
 849                          | ext[3];
 850         BIO_indent(bio, indent + 2, 80);
 851         BIO_printf(bio, "max_early_data=%u\n", max_early_data);
 852         break;
 853
 854     default:
 855         BIO_dump_indent(bio, (const char *)ext, extlen, indent + 2);
 856     }
 857     return 1;
 858 }
 859
 860 static int ssl_print_extensions(BIO *bio, int indent, int server,
 861                                 unsigned char mt, const unsigned char **msgin,
 862                                 size_t *msginlen)
 863 {
 864     size_t extslen, msglen = *msginlen;
 865     const unsigned char *msg = *msgin;
 866
 867     BIO_indent(bio, indent, 80);
 868     if (msglen == 0) {
 869         BIO_puts(bio, "No Extensions\n");
 870         return 1;
 871     }
 872     extslen = (msg[0] << 8) | msg[1];
 873     if (extslen != msglen - 2)
 874         return 0;
 875     msg += 2;
 876     msglen = extslen;
 877     BIO_printf(bio, "extensions, length = %d\n", (int)msglen);
 878     while (msglen > 0) {
 879         int extype;
 880         size_t extlen;
 881         if (msglen < 4)
 882             return 0;
 883         extype = (msg[0] << 8) | msg[1];
 884         extlen = (msg[2] << 8) | msg[3];
 885         if (msglen < extlen + 4) {
 886             BIO_printf(bio, "extensions, extype = %d, extlen = %d\n", extype,
 887                        (int)extlen);
 888             BIO_dump_indent(bio, (const char *)msg, msglen, indent + 2);
 889             return 0;
 890         }
 891         msg += 4;
 892         if (!ssl_print_extension(bio, indent + 2, server, mt, extype, msg,
 893                                  extlen))
 894             return 0;
 895         msg += extlen;
 896         msglen -= extlen + 4;
 897     }
 898
 899     *msgin = msg;
 900     *msginlen = msglen;
 901     return 1;
 902 }
 903
 904 static int ssl_print_client_hello(BIO *bio, const SSL *ssl, int indent,
 905                                   const unsigned char *msg, size_t msglen)
 906 {
 907     size_t len;
 908     unsigned int cs;
 909
 910     if (!ssl_print_version(bio, indent, "client_version", &msg, &msglen, NULL))
 911         return 0;
 912     if (!ssl_print_random(bio, indent, &msg, &msglen))
 913         return 0;
 914     if (!ssl_print_hexbuf(bio, indent, "session_id", 1, &msg, &msglen))
 915         return 0;
 916     if (SSL_IS_DTLS(ssl)) {
 917         if (!ssl_print_hexbuf(bio, indent, "cookie", 1, &msg, &msglen))
 918             return 0;
 919     }
 920     if (msglen < 2)
 921         return 0;
 922     len = (msg[0] << 8) | msg[1];
 923     msg += 2;
 924     msglen -= 2;
 925     BIO_indent(bio, indent, 80);
 926     BIO_printf(bio, "cipher_suites (len=%d)\n", (int)len);
 927     if (msglen < len || len & 1)
 928         return 0;
 929     while (len > 0) {
 930         cs = (msg[0] << 8) | msg[1];
 931         BIO_indent(bio, indent + 2, 80);
 932         BIO_printf(bio, "{0x%02X, 0x%02X} %s\n",
 933                    msg[0], msg[1], ssl_trace_str(cs, ssl_ciphers_tbl));
 934         msg += 2;
 935         msglen -= 2;
 936         len -= 2;
 937     }
 938     if (msglen < 1)
 939         return 0;
 940     len = msg[0];
 941     msg++;
 942     msglen--;
 943     if (msglen < len)
 944         return 0;
 945     BIO_indent(bio, indent, 80);
 946     BIO_printf(bio, "compression_methods (len=%d)\n", (int)len);
 947     while (len > 0) {
 948         BIO_indent(bio, indent + 2, 80);
 949         BIO_printf(bio, "%s (0x%02X)\n",
 950                    ssl_trace_str(msg[0], ssl_comp_tbl), msg[0]);
 951         msg++;
 952         msglen--;
 953         len--;
 954     }
 955     if (!ssl_print_extensions(bio, indent, 0, SSL3_MT_CLIENT_HELLO, &msg,
 956                               &msglen))
 957         return 0;
 958     return 1;
 959 }
 960
 961 static int dtls_print_hello_vfyrequest(BIO *bio, int indent,
 962                                        const unsigned char *msg, size_t msglen)
 963 {
 964     if (!ssl_print_version(bio, indent, "server_version", &msg, &msglen, NULL))
 965         return 0;
 966     if (!ssl_print_hexbuf(bio, indent, "cookie", 1, &msg, &msglen))
 967         return 0;
 968     return 1;
 969 }
 970
 971 static int ssl_print_server_hello(BIO *bio, int indent,
 972                                   const unsigned char *msg, size_t msglen)
 973 {
 974     unsigned int cs;
 975     unsigned int vers;
 976
 977     if (!ssl_print_version(bio, indent, "server_version", &msg, &msglen, &vers))
 978         return 0;
 979     if (!ssl_print_random(bio, indent, &msg, &msglen))
 980         return 0;
 981     if (vers != TLS1_3_VERSION
 982             && !ssl_print_hexbuf(bio, indent, "session_id", 1, &msg, &msglen))
 983         return 0;
 984     if (msglen < 2)
 985         return 0;
 986     cs = (msg[0] << 8) | msg[1];
 987     BIO_indent(bio, indent, 80);
 988     BIO_printf(bio, "cipher_suite {0x%02X, 0x%02X} %s\n",
 989                msg[0], msg[1], ssl_trace_str(cs, ssl_ciphers_tbl));
 990     msg += 2;
 991     msglen -= 2;
 992     if (vers != TLS1_3_VERSION) {
 993         if (msglen < 1)
 994             return 0;
 995         BIO_indent(bio, indent, 80);
 996         BIO_printf(bio, "compression_method: %s (0x%02X)\n",
 997                    ssl_trace_str(msg[0], ssl_comp_tbl), msg[0]);
 998         msg++;
 999         msglen--;
1000     }
1001     if (!ssl_print_extensions(bio, indent, 1, SSL3_MT_SERVER_HELLO, &msg,
1002                               &msglen))
1003         return 0;
1004     return 1;
1005 }
1006
1007 static int ssl_print_hello_retry_request(BIO *bio, int indent,
1008                                          const unsigned char *msg,
1009                                          size_t msglen)
1010 {
1011     unsigned int cs;
1012
1013     if (!ssl_print_version(bio, indent, "server_version", &msg, &msglen, NULL))
1014         return 0;
1015
1016     cs = (msg[0] << 8) | msg[1];
1017     BIO_indent(bio, indent, 80);
1018     BIO_printf(bio, "cipher_suite {0x%02X, 0x%02X} %s\n",
1019                msg[0], msg[1], ssl_trace_str(cs, ssl_ciphers_tbl));
1020     msg += 2;
1021     msglen -= 2;
1022
1023     if (!ssl_print_extensions(bio, indent, 1, SSL3_MT_HELLO_RETRY_REQUEST, &msg,
1024                               &msglen))
1025         return 0;
1026
1027     return 1;
1028 }
1029
1030 static int ssl_get_keyex(const char **pname, const SSL *ssl)
1031 {
1032     unsigned long alg_k = ssl->s3->tmp.new_cipher->algorithm_mkey;
1033
1034     if (alg_k & SSL_kRSA) {
1035         *pname = "rsa";
1036         return SSL_kRSA;
1037     }
1038     if (alg_k & SSL_kDHE) {
1039         *pname = "DHE";
1040         return SSL_kDHE;
1041     }
1042     if (alg_k & SSL_kECDHE) {
1043         *pname = "ECDHE";
1044         return SSL_kECDHE;
1045     }
1046     if (alg_k & SSL_kPSK) {
1047         *pname = "PSK";
1048         return SSL_kPSK;
1049     }
1050     if (alg_k & SSL_kRSAPSK) {
1051         *pname = "RSAPSK";
1052         return SSL_kRSAPSK;
1053     }
1054     if (alg_k & SSL_kDHEPSK) {
1055         *pname = "DHEPSK";
1056         return SSL_kDHEPSK;
1057     }
1058     if (alg_k & SSL_kECDHEPSK) {
1059         *pname = "ECDHEPSK";
1060         return SSL_kECDHEPSK;
1061     }
1062     if (alg_k & SSL_kSRP) {
1063         *pname = "SRP";
1064         return SSL_kSRP;
1065     }
1066     if (alg_k & SSL_kGOST) {
1067         *pname = "GOST";
1068         return SSL_kGOST;
1069     }
1070     *pname = "UNKNOWN";
1071     return 0;
1072 }
1073
1074 static int ssl_print_client_keyex(BIO *bio, int indent, const SSL *ssl,
1075                                   const unsigned char *msg, size_t msglen)
1076 {
1077     const char *algname;
1078     int id = ssl_get_keyex(&algname, ssl);
1079
1080     BIO_indent(bio, indent, 80);
1081     BIO_printf(bio, "KeyExchangeAlgorithm=%s\n", algname);
1082     if (id & SSL_PSK) {
1083         if (!ssl_print_hexbuf(bio, indent + 2,
1084                               "psk_identity", 2, &msg, &msglen))
1085             return 0;
1086     }
1087     switch (id) {
1088
1089     case SSL_kRSA:
1090     case SSL_kRSAPSK:
1091         if (TLS1_get_version(ssl) == SSL3_VERSION) {
1092             ssl_print_hex(bio, indent + 2,
1093                           "EncyptedPreMasterSecret", msg, msglen);
1094         } else {
1095             if (!ssl_print_hexbuf(bio, indent + 2,
1096                                   "EncyptedPreMasterSecret", 2, &msg, &msglen))
1097                 return 0;
1098         }
1099         break;
1100
1101     case SSL_kDHE:
1102     case SSL_kDHEPSK:
1103         if (!ssl_print_hexbuf(bio, indent + 2, "dh_Yc", 2, &msg, &msglen))
1104             return 0;
1105         break;
1106
1107     case SSL_kECDHE:
1108     case SSL_kECDHEPSK:
1109         if (!ssl_print_hexbuf(bio, indent + 2, "ecdh_Yc", 1, &msg, &msglen))
1110             return 0;
1111         break;
1112
1113     }
1114
1115     return !msglen;
1116 }
1117
1118 static int ssl_print_server_keyex(BIO *bio, int indent, const SSL *ssl,
1119                                   const unsigned char *msg, size_t msglen)
1120 {
1121     const char *algname;
1122     int id = ssl_get_keyex(&algname, ssl);
1123
1124     BIO_indent(bio, indent, 80);
1125     BIO_printf(bio, "KeyExchangeAlgorithm=%s\n", algname);
1126     if (id & SSL_PSK) {
1127         if (!ssl_print_hexbuf(bio, indent + 2,
1128                               "psk_identity_hint", 2, &msg, &msglen))
1129             return 0;
1130     }
1131     switch (id) {
1132     case SSL_kRSA:
1133
1134         if (!ssl_print_hexbuf(bio, indent + 2, "rsa_modulus", 2, &msg, &msglen))
1135             return 0;
1136         if (!ssl_print_hexbuf(bio, indent + 2, "rsa_exponent", 2,
1137                               &msg, &msglen))
1138             return 0;
1139         break;
1140
1141     case SSL_kDHE:
1142     case SSL_kDHEPSK:
1143         if (!ssl_print_hexbuf(bio, indent + 2, "dh_p", 2, &msg, &msglen))
1144             return 0;
1145         if (!ssl_print_hexbuf(bio, indent + 2, "dh_g", 2, &msg, &msglen))
1146             return 0;
1147         if (!ssl_print_hexbuf(bio, indent + 2, "dh_Ys", 2, &msg, &msglen))
1148             return 0;
1149         break;
1150
1151 # ifndef OPENSSL_NO_EC
1152     case SSL_kECDHE:
1153     case SSL_kECDHEPSK:
1154         if (msglen < 1)
1155             return 0;
1156         BIO_indent(bio, indent + 2, 80);
1157         if (msg[0] == EXPLICIT_PRIME_CURVE_TYPE)
1158             BIO_puts(bio, "explicit_prime\n");
1159         else if (msg[0] == EXPLICIT_CHAR2_CURVE_TYPE)
1160             BIO_puts(bio, "explicit_char2\n");
1161         else if (msg[0] == NAMED_CURVE_TYPE) {
1162             int curve;
1163             if (msglen < 3)
1164                 return 0;
1165             curve = (msg[1] << 8) | msg[2];
1166             BIO_printf(bio, "named_curve: %s (%d)\n",
1167                        ssl_trace_str(curve, ssl_groups_tbl), curve);
1168             msg += 3;
1169             msglen -= 3;
1170             if (!ssl_print_hexbuf(bio, indent + 2, "point", 1, &msg, &msglen))
1171                 return 0;
1172         } else {
1173             BIO_printf(bio, "UNKNOWN CURVE PARAMETER TYPE %d\n", msg[0]);
1174             return 0;
1175         }
1176         break;
1177 # endif
1178
1179     case SSL_kPSK:
1180     case SSL_kRSAPSK:
1181         break;
1182     }
1183     if (!(id & SSL_PSK))
1184         ssl_print_signature(bio, indent, ssl, &msg, &msglen);
1185     return !msglen;
1186 }
1187
1188 static int ssl_print_certificate(BIO *bio, int indent,
1189                                  const unsigned char **pmsg, size_t *pmsglen)
1190 {
1191     size_t msglen = *pmsglen;
1192     size_t clen;
1193     X509 *x;
1194     const unsigned char *p = *pmsg, *q;
1195
1196     if (msglen < 3)
1197         return 0;
1198     clen = (p[0] << 16) | (p[1] << 8) | p[2];
1199     if (msglen < clen + 3)
1200         return 0;
1201     q = p + 3;
1202     BIO_indent(bio, indent, 80);
1203     BIO_printf(bio, "ASN.1Cert, length=%d", (int)clen);
1204     x = d2i_X509(NULL, &q, clen);
1205     if (!x)
1206         BIO_puts(bio, "<UNPARSEABLE CERTIFICATE>\n");
1207     else {
1208         BIO_puts(bio, "\n------details-----\n");
1209         X509_print_ex(bio, x, XN_FLAG_ONELINE, 0);
1210         PEM_write_bio_X509(bio, x);
1211         /* Print certificate stuff */
1212         BIO_puts(bio, "------------------\n");
1213         X509_free(x);
1214     }
1215     if (q != p + 3 + clen) {
1216         BIO_puts(bio, "<TRAILING GARBAGE AFTER CERTIFICATE>\n");
1217     }
1218     *pmsg += clen + 3;
1219     *pmsglen -= clen + 3;
1220     return 1;
1221 }
1222
1223 static int ssl_print_certificates(BIO *bio, const SSL *ssl, int server,
1224                                   int indent, const unsigned char *msg,
1225                                   size_t msglen)
1226 {
1227     size_t clen;
1228
1229     if (SSL_IS_TLS13(ssl)
1230             && !ssl_print_hexbuf(bio, indent, "context", 1, &msg, &msglen))
1231         return 0;
1232
1233     if (msglen < 3)
1234         return 0;
1235     clen = (msg[0] << 16) | (msg[1] << 8) | msg[2];
1236     if (msglen != clen + 3)
1237         return 0;
1238     msg += 3;
1239     BIO_indent(bio, indent, 80);
1240     BIO_printf(bio, "certificate_list, length=%d\n", (int)clen);
1241     while (clen > 0) {
1242         if (!ssl_print_certificate(bio, indent + 2, &msg, &clen))
1243             return 0;
1244         if (!ssl_print_extensions(bio, indent + 2, server, SSL3_MT_CERTIFICATE,
1245                                   &msg, &clen))
1246             return 0;
1247
1248     }
1249     return 1;
1250 }
1251
1252 static int ssl_print_cert_request(BIO *bio, int indent, const SSL *ssl,
1253                                   const unsigned char *msg, size_t msglen)
1254 {
1255     size_t xlen;
1256     unsigned int sigalg;
1257
1258     if (SSL_IS_TLS13(ssl)) {
1259         if (!ssl_print_hexbuf(bio, indent, "request_context", 1, &msg, &msglen))
1260             return 0;
1261     } else {
1262         if (msglen < 1)
1263             return 0;
1264         xlen = msg[0];
1265         if (msglen < xlen + 1)
1266             return 0;
1267         msg++;
1268         BIO_indent(bio, indent, 80);
1269         BIO_printf(bio, "certificate_types (len=%d)\n", (int)xlen);
1270         if (!ssl_trace_list(bio, indent + 2, msg, xlen, 1, ssl_ctype_tbl))
1271             return 0;
1272         msg += xlen;
1273         msglen -= xlen + 1;
1274     }
1275     if (SSL_USE_SIGALGS(ssl)) {
1276         if (msglen < 2)
1277             return 0;
1278         xlen = (msg[0] << 8) | msg[1];
1279         if (msglen < xlen + 2 || (xlen & 1))
1280             return 0;
1281         msg += 2;
1282         msglen -= xlen + 2;
1283         BIO_indent(bio, indent, 80);
1284         BIO_printf(bio, "signature_algorithms (len=%d)\n", (int)xlen);
1285         while (xlen > 0) {
1286             BIO_indent(bio, indent + 2, 80);
1287             sigalg = (msg[0] << 8) | msg[1];
1288             BIO_printf(bio, "%s (0x%04x)\n",
1289                        ssl_trace_str(sigalg, ssl_sigalg_tbl), sigalg);
1290             xlen -= 2;
1291             msg += 2;
1292         }
1293         msg += xlen;
1294     }
1295
1296     xlen = (msg[0] << 8) | msg[1];
1297     BIO_indent(bio, indent, 80);
1298     if (msglen < xlen + 2)
1299         return 0;
1300     msg += 2;
1301     msglen -= 2 + xlen;
1302     BIO_printf(bio, "certificate_authorities (len=%d)\n", (int)xlen);
1303     while (xlen > 0) {
1304         size_t dlen;
1305         X509_NAME *nm;
1306         const unsigned char *p;
1307         if (xlen < 2)
1308             return 0;
1309         dlen = (msg[0] << 8) | msg[1];
1310         if (xlen < dlen + 2)
1311             return 0;
1312         msg += 2;
1313         BIO_indent(bio, indent + 2, 80);
1314         BIO_printf(bio, "DistinguishedName (len=%d): ", (int)dlen);
1315         p = msg;
1316         nm = d2i_X509_NAME(NULL, &p, dlen);
1317         if (!nm) {
1318             BIO_puts(bio, "<UNPARSEABLE DN>\n");
1319         } else {
1320             X509_NAME_print_ex(bio, nm, 0, XN_FLAG_ONELINE);
1321             BIO_puts(bio, "\n");
1322             X509_NAME_free(nm);
1323         }
1324         xlen -= dlen + 2;
1325         msg += dlen;
1326     }
1327     if (SSL_IS_TLS13(ssl)) {
1328         if (!ssl_print_hexbuf(bio, indent, "request_extensions", 2,
1329                               &msg, &msglen))
1330             return 0;
1331     }
1332     return msglen == 0;
1333 }
1334
1335 static int ssl_print_ticket(BIO *bio, int indent, const SSL *ssl,
1336                             const unsigned char *msg, size_t msglen)
1337 {
1338     unsigned int tick_life;
1339
1340     if (msglen == 0) {
1341         BIO_indent(bio, indent + 2, 80);
1342         BIO_puts(bio, "No Ticket\n");
1343         return 1;
1344     }
1345     if (msglen < 4)
1346         return 0;
1347     tick_life = (msg[0] << 24) | (msg[1] << 16) | (msg[2] << 8) | msg[3];
1348     msglen -= 4;
1349     msg += 4;
1350     BIO_indent(bio, indent + 2, 80);
1351     BIO_printf(bio, "ticket_lifetime_hint=%u\n", tick_life);
1352     if (SSL_IS_TLS13(ssl)) {
1353         unsigned int ticket_age_add;
1354
1355         if (msglen < 4)
1356             return 0;
1357         ticket_age_add = (msg[0] << 24) | (msg[1] << 16) | (msg[2] << 8)
1358                           | msg[3];
1359         msglen -= 4;
1360         msg += 4;
1361         BIO_indent(bio, indent + 2, 80);
1362         BIO_printf(bio, "ticket_age_add=%u\n", ticket_age_add);
1363         if (!ssl_print_hexbuf(bio, indent + 2, "ticket_nonce", 1, &msg,
1364                               &msglen))
1365             return 0;
1366     }
1367     if (!ssl_print_hexbuf(bio, indent + 2, "ticket", 2, &msg, &msglen))
1368         return 0;
1369     if (SSL_IS_TLS13(ssl)
1370             && !ssl_print_extensions(bio, indent + 2, 0,
1371                                      SSL3_MT_NEWSESSION_TICKET, &msg, &msglen))
1372         return 0;
1373     if (msglen)
1374         return 0;
1375     return 1;
1376 }
1377
1378 static int ssl_print_handshake(BIO *bio, const SSL *ssl, int server,
1379                                const unsigned char *msg, size_t msglen,
1380                                int indent)
1381 {
1382     size_t hlen;
1383     unsigned char htype;
1384
1385     if (msglen < 4)
1386         return 0;
1387     htype = msg[0];
1388     hlen = (msg[1] << 16) | (msg[2] << 8) | msg[3];
1389     BIO_indent(bio, indent, 80);
1390     BIO_printf(bio, "%s, Length=%d\n",
1391                ssl_trace_str(htype, ssl_handshake_tbl), (int)hlen);
1392     msg += 4;
1393     msglen -= 4;
1394     if (SSL_IS_DTLS(ssl)) {
1395         if (msglen < 8)
1396             return 0;
1397         BIO_indent(bio, indent, 80);
1398         BIO_printf(bio, "message_seq=%d, fragment_offset=%d, "
1399                    "fragment_length=%d\n",
1400                    (msg[0] << 8) | msg[1],
1401                    (msg[2] << 16) | (msg[3] << 8) | msg[4],
1402                    (msg[5] << 16) | (msg[6] << 8) | msg[7]);
1403         msg += 8;
1404         msglen -= 8;
1405     }
1406     if (msglen < hlen)
1407         return 0;
1408     switch (htype) {
1409     case SSL3_MT_CLIENT_HELLO:
1410         if (!ssl_print_client_hello(bio, ssl, indent + 2, msg, msglen))
1411             return 0;
1412         break;
1413
1414     case DTLS1_MT_HELLO_VERIFY_REQUEST:
1415         if (!dtls_print_hello_vfyrequest(bio, indent + 2, msg, msglen))
1416             return 0;
1417         break;
1418
1419     case SSL3_MT_SERVER_HELLO:
1420         if (!ssl_print_server_hello(bio, indent + 2, msg, msglen))
1421             return 0;
1422         break;
1423
1424     case SSL3_MT_SERVER_KEY_EXCHANGE:
1425         if (!ssl_print_server_keyex(bio, indent + 2, ssl, msg, msglen))
1426             return 0;
1427         break;
1428
1429     case SSL3_MT_CLIENT_KEY_EXCHANGE:
1430         if (!ssl_print_client_keyex(bio, indent + 2, ssl, msg, msglen))
1431             return 0;
1432         break;
1433
1434     case SSL3_MT_CERTIFICATE:
1435         if (!ssl_print_certificates(bio, ssl, server, indent + 2, msg, msglen))
1436             return 0;
1437         break;
1438
1439     case SSL3_MT_CERTIFICATE_VERIFY:
1440         if (!ssl_print_signature(bio, indent + 2, ssl, &msg, &msglen))
1441             return 0;
1442         break;
1443
1444     case SSL3_MT_CERTIFICATE_REQUEST:
1445         if (!ssl_print_cert_request(bio, indent + 2, ssl, msg, msglen))
1446             return 0;
1447         break;
1448
1449     case SSL3_MT_FINISHED:
1450         ssl_print_hex(bio, indent + 2, "verify_data", msg, msglen);
1451         break;
1452
1453     case SSL3_MT_SERVER_DONE:
1454         if (msglen != 0)
1455             ssl_print_hex(bio, indent + 2, "unexpected value", msg, msglen);
1456         break;
1457
1458     case SSL3_MT_NEWSESSION_TICKET:
1459         if (!ssl_print_ticket(bio, indent + 2, ssl, msg, msglen))
1460             return 0;
1461         break;
1462
1463     case SSL3_MT_HELLO_RETRY_REQUEST:
1464         if (!ssl_print_hello_retry_request(bio, indent + 2, msg, msglen))
1465             return 0;
1466         break;
1467
1468     case SSL3_MT_ENCRYPTED_EXTENSIONS:
1469         if (!ssl_print_extensions(bio, indent + 2, 1,
1470                                   SSL3_MT_ENCRYPTED_EXTENSIONS, &msg, &msglen))
1471             return 0;
1472         break;
1473
1474     case SSL3_MT_KEY_UPDATE:
1475         if (msglen != 1) {
1476             ssl_print_hex(bio, indent + 2, "unexpected value", msg, msglen);
1477             return 0;
1478         }
1479         if (!ssl_trace_list(bio, indent + 2, msg, msglen, 1,
1480                             ssl_key_update_tbl))
1481             return 0;
1482         break;
1483
1484     default:
1485         BIO_indent(bio, indent + 2, 80);
1486         BIO_puts(bio, "Unsupported, hex dump follows:\n");
1487         BIO_dump_indent(bio, (const char *)msg, msglen, indent + 4);
1488     }
1489     return 1;
1490 }
1491
1492 void SSL_trace(int write_p, int version, int content_type,
1493                const void *buf, size_t msglen, SSL *ssl, void *arg)
1494 {
1495     const unsigned char *msg = buf;
1496     BIO *bio = arg;
1497
1498     switch (content_type) {
1499     case SSL3_RT_HEADER:
1500         {
1501             int hvers = msg[1] << 8 | msg[2];
1502             BIO_puts(bio, write_p ? "Sent" : "Received");
1503             BIO_printf(bio, " Record\nHeader:\n  Version = %s (0x%x)\n",
1504                        ssl_trace_str(hvers, ssl_version_tbl), hvers);
1505             if (SSL_IS_DTLS(ssl)) {
1506                 BIO_printf(bio,
1507                            "  epoch=%d, sequence_number=%04x%04x%04x\n",
1508                            (msg[3] << 8 | msg[4]),
1509                            (msg[5] << 8 | msg[6]),
1510                            (msg[7] << 8 | msg[8]), (msg[9] << 8 | msg[10]));
1511             }
1512
1513             BIO_printf(bio, "  Content Type = %s (%d)\n  Length = %d",
1514                        ssl_trace_str(msg[0], ssl_content_tbl), msg[0],
1515                        msg[msglen - 2] << 8 | msg[msglen - 1]);
1516         }
1517         break;
1518
1519     case SSL3_RT_INNER_CONTENT_TYPE:
1520         BIO_printf(bio, "  Inner Content Type = %s (%d)",
1521                    ssl_trace_str(msg[0], ssl_content_tbl), msg[0]);
1522         break;
1523
1524     case SSL3_RT_HANDSHAKE:
1525         if (!ssl_print_handshake(bio, ssl, ssl->server ? write_p : !write_p,
1526                                  msg, msglen, 4))
1527             BIO_printf(bio, "Message length parse error!\n");
1528         break;
1529
1530     case SSL3_RT_CHANGE_CIPHER_SPEC:
1531         if (msglen == 1 && msg[0] == 1)
1532             BIO_puts(bio, "    change_cipher_spec (1)\n");
1533         else
1534             ssl_print_hex(bio, 4, "unknown value", msg, msglen);
1535         break;
1536
1537     case SSL3_RT_ALERT:
1538         if (msglen != 2)
1539             BIO_puts(bio, "    Illegal Alert Length\n");
1540         else {
1541             BIO_printf(bio, "    Level=%s(%d), description=%s(%d)\n",
1542                        SSL_alert_type_string_long(msg[0] << 8),
1543                        msg[0], SSL_alert_desc_string_long(msg[1]), msg[1]);
1544         }
1545
1546     }
1547
1548     BIO_puts(bio, "\n");
1549 }
1550
1551 #endif