1 /*
2 * SRT - Secure, Reliable, Transport
3 * Copyright (c) 2018 Haivision Systems Inc.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 *
9 */
10
11 #if ENABLE_HAICRYPT_LOGGING
12
13 #include "hcrypt.h"
14 #include "haicrypt.h"
15 #include "../srtcore/srt.h"
16 #include "../srtcore/logging.h"
17
18 extern srt_logging::LogConfig srt_logger_config;
19
20 // LOGFA symbol defined in srt.h
21 srt_logging::Logger hclog(SRT_LOGFA_HAICRYPT, srt_logger_config, "SRT.hc");
22
23 extern "C" {
24
HaiCrypt_SetLogLevel(int level,int logfa)25 int HaiCrypt_SetLogLevel(int level, int logfa)
26 {
27 srt_setloglevel(level);
28 if (logfa != SRT_LOGFA_GENERAL) // General can't be turned on or off
29 {
30 srt_addlogfa(logfa);
31 }
32 return 0;
33 }
34
35 // HaiCrypt will be using its own FA, which will be turned off by default.
36
37 // Templates made C way.
38 // It's tempting to use the HAICRYPT_DEFINE_LOG_DISPATCHER macro here because it would provide the
39 // exact signature that is needed here, the problem is though that this would expand the LOGLEVEL
40 // parameter, which is also a macro, into the value that the macro designates, which would generate
41 // the HaiCrypt_LogF_0 instead of HaiCrypt_LogF_LOG_DEBUG, for example.
42 #define HAICRYPT_DEFINE_LOG_DISPATCHER(LOGLEVEL, dispatcher) \
43 int HaiCrypt_LogF_##LOGLEVEL ( const char* file, int line, const char* function, const char* format, ...) \
44 { \
45 va_list ap; \
46 va_start(ap, format); \
47 srt_logging::LogDispatcher& lg = hclog.dispatcher; \
48 if (!lg.CheckEnabled()) return -1; \
49 lg().setloc(file, line, function).vform(format, ap); \
50 va_end(ap); \
51 return 0; \
52 }
53
54
55 HAICRYPT_DEFINE_LOG_DISPATCHER(LOG_DEBUG, Debug);
56 HAICRYPT_DEFINE_LOG_DISPATCHER(LOG_NOTICE, Note);
57 HAICRYPT_DEFINE_LOG_DISPATCHER(LOG_INFO, Note);
58 HAICRYPT_DEFINE_LOG_DISPATCHER(LOG_WARNING, Warn);
59 HAICRYPT_DEFINE_LOG_DISPATCHER(LOG_ERR, Error);
60 HAICRYPT_DEFINE_LOG_DISPATCHER(LOG_CRIT, Fatal);
61 HAICRYPT_DEFINE_LOG_DISPATCHER(LOG_ALERT, Fatal);
62 HAICRYPT_DEFINE_LOG_DISPATCHER(LOG_EMERG, Fatal);
63
64
DumpCfgFlags(int flags,std::ostream & out)65 static void DumpCfgFlags(int flags, std::ostream& out)
66 {
67 static struct { int flg; const char* desc; } flgtable [] = {
68 #define HCRYPTF(name) { HAICRYPT_CFG_F_##name, #name }
69 HCRYPTF(TX),
70 HCRYPTF(CRYPTO),
71 HCRYPTF(FEC)
72 #undef HCRYPTF
73 };
74 size_t flgtable_size = sizeof(flgtable)/sizeof(flgtable[0]);
75 size_t i;
76
77 out << "{";
78 const char* sep = "";
79 const char* sep_bar = " | ";
80 for (i = 0; i < flgtable_size; ++i)
81 {
82 if ( (flgtable[i].flg & flags) != 0 )
83 {
84 out << sep << flgtable[i].desc;
85 sep = sep_bar;
86 }
87 }
88 out << "}";
89 }
90
HaiCrypt_DumpConfig(const HaiCrypt_Cfg * cfg)91 void HaiCrypt_DumpConfig(const HaiCrypt_Cfg* cfg)
92 {
93 std::ostringstream cfg_flags;
94
95 DumpCfgFlags(cfg->flags, cfg_flags);
96
97 LOGC(hclog.Debug, log << "CFG DUMP: flags=" << cfg_flags.str()
98 << " xport=" << (cfg->xport == HAICRYPT_XPT_SRT ? "SRT" : "INVALID")
99 << " cipher="
100 << (cfg->cipher == HaiCryptCipher_OpenSSL_EVP_CTR() ? "OSSL-EVP-CTR":
101 cfg->cipher == HaiCryptCipher_OpenSSL_AES() ? "OSSL-AES":
102 // This below is used as the only one when Nettle is used. When OpenSSL
103 // is used, one of the above will trigger, and the one below will then never trigger.
104 cfg->cipher == HaiCryptCipher_Get_Instance() ? "Nettle-AES":
105 "UNKNOWN")
106 << " key_len=" << cfg->key_len << " data_max_len=" << cfg->data_max_len);
107
108
109 LOGC(hclog.Debug, log << "CFG DUMP: txperiod="
110 << cfg->km_tx_period_ms << "ms kmrefresh=" << cfg->km_refresh_rate_pkt
111 << " kmpreannounce=" << cfg->km_pre_announce_pkt
112 << " secret "
113 << "{tp=" << (cfg->secret.typ == 1 ? "PSK" : cfg->secret.typ == 2 ? "PWD" : "???")
114 << " len=" << cfg->secret.len << " pwd=" << cfg->secret.str << "}");
115
116 }
117
118 } // extern "C"
119
120 #endif // Block for the whole file
121