void CAICHRecoveryHashSet::UntrustedHashReceived(const CAICHHash& Hash, uint32 dwFromIP){
switch(GetStatus()){
case AICH_EMPTY:
case AICH_UNTRUSTED:
case AICH_TRUSTED:
break;
default:
return;
}
bool bFound = false;
bool bAdded = false;
for (int i = 0; i < m_aUntrustedHashs.GetCount(); i++){
if (m_aUntrustedHashs[i].m_Hash == Hash){
bAdded = m_aUntrustedHashs[i].AddSigningIP(dwFromIP, false);
bFound = true;
break;
}
}
if (!bFound)
{
for (int i = 0; i < m_aUntrustedHashs.GetCount(); i++)
{
if (!m_aUntrustedHashs[i].AddSigningIP(dwFromIP, true))
{
AddDebugLogLine(DLP_LOW, false, _T("Received different AICH hashs for file %s from IP/20 %s, ignored"), (m_pOwner != NULL) ? m_pOwner->GetFileName() : _T(""), dwFromIP);
// nothing changed, so we can return early without any rechecks
return;
}
}
bAdded = true;
CAICHUntrustedHash uhToAdd;
uhToAdd.m_Hash = Hash;
uhToAdd.AddSigningIP(dwFromIP, false);
m_aUntrustedHashs.Add(uhToAdd);
}
uint32 nSigningIPsTotal = 0; // unique clients who send us a hash
int nMostTrustedPos = (-1); // the hash which most clients send us
uint32 nMostTrustedIPs = 0;
for (uint32 i = 0; i < (uint32)m_aUntrustedHashs.GetCount(); i++){
nSigningIPsTotal += m_aUntrustedHashs[i].m_adwIpsSigning.GetCount();
if ((uint32)m_aUntrustedHashs[i].m_adwIpsSigning.GetCount() > nMostTrustedIPs){
nMostTrustedIPs = m_aUntrustedHashs[i].m_adwIpsSigning.GetCount();
nMostTrustedPos = i;
}
}
if (nMostTrustedPos == (-1) || nSigningIPsTotal == 0){
ASSERT( false );
return;
}
// the check if we trust any hash
if ( thePrefs.IsTrustingEveryHash() ||
(nMostTrustedIPs >= MINUNIQUEIPS_TOTRUST && (100 * nMostTrustedIPs)/nSigningIPsTotal >= MINPERCENTAGE_TOTRUST)){
//trusted
//theApp.QueueDebugLogLine(false, _T("AICH Hash received: %s (%sadded), We have now %u hash from %u unique IPs. We trust the Hash %s from %u clients (%u%%). Added IP:%s, file: %s")
//, Hash.GetString(), bAdded? _T(""):_T("not "), m_aUntrustedHashs.GetCount(), nSigningIPsTotal, m_aUntrustedHashs[nMostTrustedPos].m_Hash.GetString()
//, nMostTrustedIPs, (100 * nMostTrustedIPs)/nSigningIPsTotal, ipstr(dwFromIP & 0x00F0FFFF), m_pOwner->GetFileName());
SetStatus(AICH_TRUSTED);
if (!HasValidMasterHash() || GetMasterHash() != m_aUntrustedHashs[nMostTrustedPos].m_Hash){
SetMasterHash(m_aUntrustedHashs[nMostTrustedPos].m_Hash, AICH_TRUSTED);
FreeHashSet();
}
}
else{
// untrusted
//theApp.QueueDebugLogLine(false, _T("AICH Hash received: %s (%sadded), We have now %u hash from %u unique IPs. Best Hash (%s) is from %u clients (%u%%) - but we dont trust it yet. Added IP:%s, file: %s")
// , Hash.GetString(), bAdded? _T(""):_T("not "), m_aUntrustedHashs.GetCount(), nSigningIPsTotal, m_aUntrustedHashs[nMostTrustedPos].m_Hash.GetString()
// , nMostTrustedIPs, (100 * nMostTrustedIPs)/nSigningIPsTotal, ipstr(dwFromIP & 0x00F0FFFF), m_pOwner->GetFileName());
SetStatus(AICH_UNTRUSTED);
if (!HasValidMasterHash() || GetMasterHash() != m_aUntrustedHashs[nMostTrustedPos].m_Hash){
SetMasterHash(m_aUntrustedHashs[nMostTrustedPos].m_Hash, AICH_UNTRUSTED);
FreeHashSet();
}
}
}
void CAICHHashSet::UntrustedHashReceived(const CAICHHash& Hash, uint32 dwFromIP)
{
switch(GetStatus()) {
case AICH_EMPTY:
case AICH_UNTRUSTED:
case AICH_TRUSTED:
break;
default:
return;
}
bool bFound = false;
bool bAdded = false;
for (uint32 i = 0; i < m_aUntrustedHashs.size(); ++i) {
if (m_aUntrustedHashs[i].m_Hash == Hash) {
bAdded = m_aUntrustedHashs[i].AddSigningIP(dwFromIP);
bFound = true;
break;
}
}
if (!bFound) {
bAdded = true;
CAICHUntrustedHash uhToAdd;
uhToAdd.m_Hash = Hash;
uhToAdd.AddSigningIP(dwFromIP);
m_aUntrustedHashs.push_back(uhToAdd);
}
uint32 nSigningIPsTotal = 0; // unique clients who send us a hash
int nMostTrustedPos = (-1); // the hash which most clients send us
uint32 nMostTrustedIPs = 0;
for (uint32 i = 0; i < (uint32)m_aUntrustedHashs.size(); ++i) {
nSigningIPsTotal += m_aUntrustedHashs[i].m_adwIpsSigning.size();
if ((uint32)m_aUntrustedHashs[i].m_adwIpsSigning.size() > nMostTrustedIPs) {
nMostTrustedIPs = m_aUntrustedHashs[i].m_adwIpsSigning.size();
nMostTrustedPos = i;
}
}
if (nMostTrustedPos == (-1) || nSigningIPsTotal == 0) {
wxFAIL;
return;
}
// the check if we trust any hash
if ( thePrefs::IsTrustingEveryHash() ||
(nMostTrustedIPs >= MINUNIQUEIPS_TOTRUST && (100 * nMostTrustedIPs)/nSigningIPsTotal >= MINPERCENTAGE_TOTRUST)) {
//trusted
AddDebugLogLineM(false, logSHAHashSet,
CFormat(wxT("AICH Hash received (%sadded), We have now %u hash(es) from %u unique IP(s). ")
wxT("We trust the Hash %s from %u client(s) (%u%%). File: %s"))
% (bAdded ? wxT("") : wxT("not "))
% m_aUntrustedHashs.size()
% nSigningIPsTotal
% m_aUntrustedHashs[nMostTrustedPos].m_Hash.GetString()
% nMostTrustedIPs
% ((100 * nMostTrustedIPs) / nSigningIPsTotal)
% m_pOwner->GetFileName());
SetStatus(AICH_TRUSTED);
if (!HasValidMasterHash() || GetMasterHash() != m_aUntrustedHashs[nMostTrustedPos].m_Hash) {
SetMasterHash(m_aUntrustedHashs[nMostTrustedPos].m_Hash, AICH_TRUSTED);
FreeHashSet();
}
} else {
// untrusted
AddDebugLogLineM(false, logSHAHashSet,
CFormat(wxT("AICH Hash received (%sadded), We have now %u hash(es) from %u unique IP(s). ")
wxT("Best Hash %s from %u clients (%u%%) - but we dont trust it yet. File: %s"))
% (bAdded ? wxT(""): wxT("not "))
% m_aUntrustedHashs.size()
% nSigningIPsTotal
% m_aUntrustedHashs[nMostTrustedPos].m_Hash.GetString()
% nMostTrustedIPs
% ((100 * nMostTrustedIPs) / nSigningIPsTotal)
% m_pOwner->GetFileName());
SetStatus(AICH_UNTRUSTED);
if (!HasValidMasterHash() || GetMasterHash() != m_aUntrustedHashs[nMostTrustedPos].m_Hash) {
SetMasterHash(m_aUntrustedHashs[nMostTrustedPos].m_Hash, AICH_UNTRUSTED);
FreeHashSet();
}
}
}