-/* +------------------------------------+
- * | Inspire Internet Relay Chat Daemon |
- * +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
*
- * InspIRCd: (C) 2002-2010 InspIRCd Development Team
- * See: http://wiki.inspircd.org/Credits
+ * Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ * Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
*
- * This program is free but copyrighted software; see
- * the file COPYING for details.
+ * This file is part of InspIRCd. InspIRCd is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation, version 2.
*
- * ---------------------------------------------------
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+
#include "inspircd.h"
#include "socket.h"
#include "xline.h"
-#include "../m_hash.h"
+#include "../hash.h"
#include "../ssl.h"
#include "socketengine.h"
#include "treesocket.h"
#include "resolvers.h"
-/* $ModDep: m_spanningtree/resolvers.h m_spanningtree/main.h m_spanningtree/utils.h m_spanningtree/treeserver.h m_spanningtree/link.h m_spanningtree/treesocket.h m_hash.h */
-
const std::string& TreeSocket::GetOurChallenge()
{
return capab->ourchallenge;
HashProvider* sha256 = ServerInstance->Modules->FindDataService<HashProvider>("hash/sha256");
if (Utils->ChallengeResponse && sha256 && !challenge.empty())
{
- /* This is how HMAC is supposed to be done:
- *
- * sha256( (pass xor 0x5c) + sha256((pass xor 0x36) + m) )
- *
- * 5c and 36 were chosen as part of the HMAC standard, because they
- * flip the bits in a way likely to strengthen the function.
- */
- std::string hmac1, hmac2;
-
- for (size_t n = 0; n < password.length(); n++)
+ if (proto_version < 1202)
{
- hmac1.push_back(static_cast<char>(password[n] ^ 0x5C));
- hmac2.push_back(static_cast<char>(password[n] ^ 0x36));
- }
+ /* This is how HMAC is done in InspIRCd 1.2:
+ *
+ * sha256( (pass xor 0x5c) + sha256((pass xor 0x36) + m) )
+ *
+ * 5c and 36 were chosen as part of the HMAC standard, because they
+ * flip the bits in a way likely to strengthen the function.
+ */
+ std::string hmac1, hmac2;
+
+ for (size_t n = 0; n < password.length(); n++)
+ {
+ hmac1.push_back(static_cast<char>(password[n] ^ 0x5C));
+ hmac2.push_back(static_cast<char>(password[n] ^ 0x36));
+ }
- if (proto_version >= 1202)
- {
- hmac2.append(challenge);
- std::string hmac = sha256->hexsum(hmac1 + sha256->sum(hmac2));
-
- return "AUTH:" + hmac;
- }
- else
- {
- // version 1.2 used a weaker HMAC, using hex output in the intermediate step
hmac2.append(challenge);
hmac2 = sha256->hexsum(hmac2);
return "HMAC-SHA256:"+ hmac;
}
+ else
+ {
+ return "AUTH:" + BinToBase64(sha256->hmac(password, challenge));
+ }
}
else if (!challenge.empty() && !sha256)
ServerInstance->Logs->Log("m_spanningtree",DEFAULT,"Not authenticating to server using SHA256/HMAC because we don't have m_sha256 loaded!");
return password;
}
-std::string TreeSocket::RandString(unsigned int ilength)
-{
- char* randombuf = new char[ilength+1];
- std::string out;
-#ifndef WINDOWS
- int f = open("/dev/urandom", O_RDONLY, 0);
-
- if (f >= 0)
- {
- if (read(f, randombuf, ilength) < (int)ilength)
- ServerInstance->Logs->Log("m_spanningtree", DEFAULT, "Entropy source has gone predictable (did not return enough data)");
- close(f);
- }
- else
-#endif
- {
- for (unsigned int i = 0; i < ilength; i++)
- randombuf[i] = rand();
- }
-
- for (unsigned int i = 0; i < ilength; i++)
- {
- char randchar = static_cast<char>(0x3F + (randombuf[i] & 0x3F));
- out += randchar;
- }
-
- delete[] randombuf;
- return out;
-}
-
bool TreeSocket::ComparePass(const Link& link, const std::string &theirs)
{
capab->auth_fingerprint = !link.Fingerprint.empty();
std::string fp;
if (GetIOHook())
{
- SocketCertificateRequest req(this, Utils->Creator, GetIOHook());
+ SocketCertificateRequest req(this, Utils->Creator);
if (req.cert)
{
fp = req.cert->GetFingerprint();
/* Require fingerprint to exist and match */
if (link.Fingerprint != fp)
{
- ServerInstance->SNO->WriteToSnoMask('l',"Invalid SSL fingerprint on link %s: need '%s' got '%s'",
+ ServerInstance->SNO->WriteToSnoMask('l',"Invalid SSL fingerprint on link %s: need \"%s\" got \"%s\"",
link.Name.c_str(), link.Fingerprint.c_str(), fp.c_str());
SendError("Provided invalid SSL fingerprint " + fp + " - expected " + link.Fingerprint);
return false;
}
else if (!fp.empty())
{
- ServerInstance->SNO->WriteToSnoMask('l', "SSL fingerprint for link %s is %s", link.Name.c_str(), fp.c_str());
+ ServerInstance->SNO->WriteToSnoMask('l', "SSL fingerprint for link %s is \"%s\". "
+ "You can improve security by specifying this in <link:fingerprint>.", link.Name.c_str(), fp.c_str());
}
return true;
}