monero/src/device/log.cpp
moneromooo-monero 41e9cab4e1
device: misc cleanup
use snprintf "just in case" where appropriate
consistently use unsigned for temp values
pass std::string by const ref rather than by value
add length check (which can't happen in practice) for memcpy
2018-06-23 15:28:48 +01:00

167 lines
5.3 KiB
C++

// Copyright (c) 2017-2018, The Monero Project
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
#include "misc_log_ex.h"
#include "log.hpp"
namespace hw {
#ifdef WITH_DEVICE_LEDGER
namespace ledger {
#undef MONERO_DEFAULT_LOG_CATEGORY
#define MONERO_DEFAULT_LOG_CATEGORY "device.ledger"
void buffer_to_str(char *to_buff, size_t to_len, const char *buff, size_t len) {
CHECK_AND_ASSERT_THROW_MES(to_len > (len*2), "destination buffer too short. At least" << (len*2+1) << " bytes required");
for (size_t i=0; i<len; i++) {
sprintf(to_buff+2*i, "%.02x", (unsigned char)buff[i]);
}
}
void log_hexbuffer(const std::string &msg, const char* buff, size_t len) {
char logstr[1025];
buffer_to_str(logstr, sizeof(logstr), buff, len);
MDEBUG(msg<< ": " << logstr);
}
void log_message(const std::string &msg, const std::string &info ) {
MDEBUG(msg << ": " << info);
}
#ifdef DEBUG_HWDEVICE
extern crypto::secret_key dbg_viewkey;
extern crypto::secret_key dbg_spendkey;
void decrypt(char* buf, size_t len) {
#ifdef IODUMMYCRYPT_HWDEVICE
size_t i;
if (len == 32) {
//view key?
for (i = 0; i<32; i++) {
if (buf[i] != 0) break;
}
if (i == 32) {
memmove(buf, hw::ledger::dbg_viewkey.data, 32);
return;
}
//spend key?
for (i = 0; i<32; i++) {
if (buf[i] != (char)0xff) break;
}
if (i == 32) {
memmove(buf, hw::ledger::dbg_spendkey.data, 32);
return;
}
}
//std decrypt: XOR.55h
for (i = 0; i<len;i++) {
buf[i] ^= 0x55;
}
#endif
}
crypto::key_derivation decrypt(const crypto::key_derivation &derivation) {
crypto::key_derivation x = derivation;
decrypt(x.data, 32);
return x;
}
cryptonote::account_keys decrypt(const cryptonote::account_keys& keys) {
cryptonote::account_keys x = keys;
decrypt(x.m_view_secret_key.data, 32);
decrypt(x.m_spend_secret_key.data, 32);
return x;
}
crypto::secret_key decrypt(const crypto::secret_key &sec) {
crypto::secret_key x = sec;
decrypt(x.data, 32);
return x;
}
rct::key decrypt(const rct::key &sec) {
rct::key x = sec;
decrypt((char*)x.bytes, 32);
return x;
}
crypto::ec_scalar decrypt(const crypto::ec_scalar &res) {
crypto::ec_scalar x = res;
decrypt((char*)x.data, 32);
return x;
}
rct::keyV decrypt(const rct::keyV &keys) {
rct::keyV x ;
x.reserve(keys.size());
for (unsigned int j = 0; j<keys.size(); j++) {
x.push_back(decrypt(keys[j]));
}
return x;
}
static void check(const std::string &msg, const std::string &info, const char *h, const char *d, size_t len, bool crypted) {
char dd[32];
char logstr[128];
CHECK_AND_ASSERT_THROW_MES(len <= sizeof(dd), "invalid len");
memmove(dd,d,len);
if (crypted) {
CHECK_AND_ASSERT_THROW_MES(len<=32, "encrypted data greater than 32");
decrypt(dd,len);
}
if (memcmp(h,dd,len)) {
log_message("ASSERT EQ FAIL", msg + ": "+ info );
log_hexbuffer(" host ", h, len);
log_hexbuffer(" device", dd, len);
} else {
buffer_to_str(logstr, 128, dd, len);
log_message("ASSERT EQ OK", msg + ": "+ info + ": "+ std::string(logstr) );
}
}
void check32(const std::string &msg, const std::string &info, const char *h, const char *d, bool crypted) {
check(msg, info, h, d, 32, crypted);
}
void check8(const std::string &msg, const std::string &info, const char *h, const char *d, bool crypted) {
check(msg, info, h, d, 8, crypted);
}
#endif
}
#endif //WITH_DEVICE_LEDGER
}