X-Git-Url: https://git.stg.codes/stg.git/blobdiff_plain/1347f3d1e04bedd1508589173f577673ee2c5554..314d6747391083c89173741c610066c72a0b3b8b:/projects/stargazer/plugins/authorization/inetaccess/inetaccess.cpp?ds=inline

diff --git a/projects/stargazer/plugins/authorization/inetaccess/inetaccess.cpp b/projects/stargazer/plugins/authorization/inetaccess/inetaccess.cpp
index dd0102b2..4456c372 100644
--- a/projects/stargazer/plugins/authorization/inetaccess/inetaccess.cpp
+++ b/projects/stargazer/plugins/authorization/inetaccess/inetaccess.cpp
@@ -55,10 +55,6 @@ extern volatile time_t stgTime;
 namespace
 {
 PLUGIN_CREATOR<AUTH_IA> iac;
-
-void InitEncrypt(BLOWFISH_CTX * ctx, const std::string & password);
-void Decrypt(BLOWFISH_CTX * ctx, void * dst, const void * src, size_t len8);
-void Encrypt(BLOWFISH_CTX * ctx, void * dst, const void * src, size_t len8);
 }
 
 extern "C" PLUGIN * GetPlugin();
@@ -77,7 +73,8 @@ AUTH_IA_SETTINGS::AUTH_IA_SETTINGS()
       userTimeout(0),
       port(0),
       errorStr(),
-      freeMbShowType(freeMbCash)
+      freeMbShowType(freeMbCash),
+      logProtocolErrors(false)
 {
 }
 //-----------------------------------------------------------------------------
@@ -134,6 +131,17 @@ if (ParseIntInRange(pvi->value[0], 15, 1200, &userTimeout))
     printfd(__FILE__, "Cannot parse parameter 'UserTimeout'\n");
     return -1;
     }
+///////////////////////////
+pv.param = "LogProtocolErrors";
+pvi = find(s.moduleParams.begin(), s.moduleParams.end(), pv);
+if (pvi == s.moduleParams.end())
+    logProtocolErrors = false;
+else if (ParseYesNo(pvi->value[0], &logProtocolErrors))
+    {
+    errorStr = "Cannot parse parameter \'LogProtocolErrors\': " + errorStr;
+    printfd(__FILE__, "Cannot parse parameter 'LogProtocolErrors'\n");
+    return -1;
+    }
 /////////////////////////////////////////////////////////////
 std::string freeMbType;
 int n = 0;
@@ -274,15 +282,6 @@ phase = 4;
 gettimeofday(&phaseTime, NULL);
 }
 //-----------------------------------------------------------------------------
-void IA_PHASE::SetPhase5()
-{
-#ifdef IA_PHASE_DEBUG
-WritePhaseChange(5);
-#endif
-phase = 5;
-gettimeofday(&phaseTime, NULL);
-}
-//-----------------------------------------------------------------------------
 int IA_PHASE::GetPhase() const
 {
 return phase;
@@ -331,7 +330,7 @@ AUTH_IA::AUTH_IA()
       onDelUserNotifier(*this),
       logger(GetPluginLogger(GetStgLogger(), "auth_ia"))
 {
-InitEncrypt(&ctxS, "pr7Hhen");
+InitContext("pr7Hhen", 7, &ctxS);
 
 pthread_mutexattr_t attr;
 pthread_mutexattr_init(&attr);
@@ -527,6 +526,23 @@ if (ret)
 return ret;
 }
 //-----------------------------------------------------------------------------
+int AUTH_IA::Reload(const MODULE_SETTINGS & ms)
+{
+AUTH_IA_SETTINGS newIaSettings;
+if (newIaSettings.ParseSettings(ms))
+    {
+    STG_LOGGER & WriteServLog = GetStgLogger();
+    printfd(__FILE__, "AUTH_IA::Reload() - Failed to reload InetAccess.\n");
+    WriteServLog("AUTH_IA: Cannot reload InetAccess. Errors found.");
+    return -1;
+    }
+
+STG_LOGGER & WriteServLog = GetStgLogger();
+printfd(__FILE__, "AUTH_IA::Reload() -  Reloaded InetAccess successfully.\n");
+WriteServLog("AUTH_IA: Reloaded InetAccess successfully.");
+return 0;
+}
+//-----------------------------------------------------------------------------
 int AUTH_IA::PrepareNet()
 {
 struct sockaddr_in listenAddr;
@@ -590,17 +606,17 @@ if (dataLen <= 0) // Error
 if (dataLen > 256)
     return -1;
 
+uint32_t sip = outerAddr.sin_addr.s_addr;
+uint16_t sport = htons(outerAddr.sin_port);
+
 int protoVer;
-if (CheckHeader(buffer, &protoVer))
+if (CheckHeader(buffer, sip, &protoVer))
     return -1;
 
 char login[PASSWD_LEN];  //TODO why PASSWD_LEN ?
 memset(login, 0, PASSWD_LEN);
 
-Decrypt(&ctxS, login, buffer + 8, PASSWD_LEN / 8);
-
-uint32_t sip = outerAddr.sin_addr.s_addr;
-uint16_t sport = htons(outerAddr.sin_port);
+DecryptString(login, buffer + 8, PASSWD_LEN, &ctxS);
 
 USER_PTR user;
 if (users->FindByName(login, &user))
@@ -609,7 +625,7 @@ if (users->FindByName(login, &user))
            login,
            inet_ntostring(sip).c_str());
     printfd(__FILE__, "User '%s' NOT found!\n", login);
-    SendError(sip, sport, protoVer, "îÅÐÒÁ×ÉÌØÎÙÊ ÌÏÇÉÎ!");
+    SendError(sip, sport, protoVer, IconvString("Неправильный логин.", "utf8", "koi8-ru"));
     return -1;
     }
 
@@ -618,14 +634,14 @@ printfd(__FILE__, "User '%s' FOUND!\n", user->GetLogin().c_str());
 if (user->GetProperty().disabled.Get())
     {
     logger("Cannont authorize '%s', user is disabled.", login);
-    SendError(sip, sport, protoVer, "õÞÅÔÎÁÑ ÚÁÐÉÓØ ÚÁÂÌÏËÉÒÏ×ÁÎÁ");
+    SendError(sip, sport, protoVer, IconvString("Учетная запись заблокирована.", "utf8", "koi8-ru"));
     return 0;
     }
 
 if (user->GetProperty().passive.Get())
     {
     logger("Cannont authorize '%s', user is passive.", login);
-    SendError(sip, sport, protoVer, "õÞÅÔÎÁÑ ÚÁÐÉÓØ ÚÁÍÏÒÏÖÅÎÁ");
+    SendError(sip, sport, protoVer, IconvString("Учетная запись заморожена.", "utf8", "koi8-ru"));
     return 0;
     }
 
@@ -635,35 +651,37 @@ if (!user->GetProperty().ips.Get().IsIPInIPS(sip))
             user->GetLogin().c_str(), inet_ntostring(sip).c_str());
     logger("User %s. IP address is incorrect. IP %s",
            user->GetLogin().c_str(), inet_ntostring(sip).c_str());
-    SendError(sip, sport, protoVer, "ðÏÌØÚÏ×ÁÔÅÌØ ÎÅ ÏÐÏÚÎÁÎ! ðÒÏ×ÅÒØÔÅ IP ÁÄÒÅÓ.");
+    SendError(sip, sport, protoVer, IconvString("Пользователь не опознан. Проверьте IP-адрес.", "utf8", "koi8-ru"));
     return 0;
     }
 
 return PacketProcessor(buffer, dataLen, sip, sport, protoVer, user);
 }
 //-----------------------------------------------------------------------------
-int AUTH_IA::CheckHeader(const char * buffer, int * protoVer)
+int AUTH_IA::CheckHeader(const char * buffer, uint32_t sip, int * protoVer)
 {
 if (strncmp(IA_ID, buffer, strlen(IA_ID)) != 0)
     {
-    //SendError(userIP, updateMsg);
     printfd(__FILE__, "update needed - IA_ID\n");
-    //SendError(userIP, "Incorrect header!");
+    if (iaSettings.LogProtocolErrors())
+        logger("IP: %s. Header: invalid packed signature.", inet_ntostring(sip).c_str());
     return -1;
     }
 
 if (buffer[6] != 0) //proto[0] shoud be 0
     {
     printfd(__FILE__, "update needed - PROTO major: %d\n", buffer[6]);
-    //SendError(userIP, updateMsg);
+    if (iaSettings.LogProtocolErrors())
+        logger("IP: %s. Header: invalid protocol major version: %d.", inet_ntostring(sip).c_str(), buffer[6]);
     return -1;
     }
 
 if (buffer[7] < 6)
     {
     // need update
-    //SendError(userIP, updateMsg);
     printfd(__FILE__, "update needed - PROTO minor: %d\n", buffer[7]);
+    if (iaSettings.LogProtocolErrors())
+        logger("IP: %s. Header: invalid protocol minor version: %d.", inet_ntostring(sip).c_str(), buffer[7]);
     return -1;
     }
 else
@@ -675,15 +693,14 @@ return 0;
 //-----------------------------------------------------------------------------
 int AUTH_IA::Timeouter()
 {
-STG_LOCKER lock(&mutex, __FILE__, __LINE__);
+STG_LOCKER lock(&mutex);
 
 std::map<uint32_t, IA_USER>::iterator it;
 it = ip2user.begin();
-uint32_t sip;
 
 while (it != ip2user.end())
     {
-    sip = it->first;
+    uint32_t sip = it->first;
 
     static UTIME currTime;
     gettimeofday(&currTime, NULL);
@@ -691,6 +708,8 @@ while (it != ip2user.end())
     if ((it->second.phase.GetPhase() == 2)
         && (currTime - it->second.phase.GetTime()) > iaSettings.GetUserDelay())
         {
+        if (iaSettings.LogProtocolErrors())
+            logger("User '%s'. Protocol version: %d. Phase 2: connect request timeout (%f > %d).", it->second.login.c_str(), it->second.protoVer, (currTime - it->second.phase.GetTime()).AsDouble(), iaSettings.GetUserDelay());
         it->second.phase.SetPhase1();
         printfd(__FILE__, "Phase changed from 2 to 1. Reason: timeout\n");
         ip2user.erase(it++);
@@ -733,6 +752,8 @@ while (it != ip2user.end())
 
         if ((currTime - it->second.phase.GetTime()) > iaSettings.GetUserTimeout())
             {
+            if (iaSettings.LogProtocolErrors())
+                logger("User '%s'. Protocol version: %d. Phase 3: alive timeout (%f > %d).", it->second.login.c_str(), it->second.protoVer, (currTime - it->second.phase.GetTime()).AsDouble(), iaSettings.GetUserTimeout());
             users->Unauthorize(it->second.user->GetLogin(), this);
             ip2user.erase(it++);
             continue;
@@ -742,6 +763,8 @@ while (it != ip2user.end())
     if ((it->second.phase.GetPhase() == 4)
         && ((currTime - it->second.phase.GetTime()) > iaSettings.GetUserDelay()))
         {
+        if (iaSettings.LogProtocolErrors())
+            logger("User '%s'. Protocol version: %d. Phase 4: disconnect request timeout (%f > %d).", it->second.login.c_str(), it->second.protoVer, (currTime - it->second.phase.GetTime()).AsDouble(), iaSettings.GetUserDelay());
         it->second.phase.SetPhase3();
         printfd(__FILE__, "Phase changed from 4 to 3. Reason: timeout\n");
         }
@@ -757,7 +780,7 @@ int AUTH_IA::PacketProcessor(void * buff, size_t dataLen, uint32_t sip, uint16_t
 std::string login(user->GetLogin());
 const size_t offset = LOGIN_LEN + 2 + 6; // LOGIN_LEN + sizeOfMagic + sizeOfVer;
 
-STG_LOCKER lock(&mutex, __FILE__, __LINE__);
+STG_LOCKER lock(&mutex);
 std::map<uint32_t, IA_USER>::iterator it(ip2user.find(sip));
 
 if (it == ip2user.end())
@@ -775,7 +798,7 @@ if (it == ip2user.end())
                    userPtr->GetLogin().c_str(),
                    inet_ntostring(sip).c_str(),
                    login.c_str());
-            SendError(sip, sport, protoVer, "÷ÁÛ IP ÁÄÒÅÓ ÕÖÅ ÉÓÐÏÌØÚÕÅÔÓÑ!");
+            SendError(sip, sport, protoVer, IconvString("IP-адрес уже сипользуется.", "utf8", "koi8-ru"));
             return 0;
             }
         }
@@ -800,7 +823,7 @@ else if (user->GetID() != it->second.user->GetID())
            it->second.user->GetLogin().c_str(),
            inet_ntostring(sip).c_str(),
            user->GetLogin().c_str());
-    SendError(sip, sport, protoVer, "÷ÁÛ IP ÁÄÒÅÓ ÕÖÅ ÉÓÐÏÌØÚÕÅÔÓÑ!");
+    SendError(sip, sport, protoVer, IconvString("IP-адрес уже используется.", "utf8", "koi8-ru"));
     return 0;
     }
 
@@ -808,11 +831,12 @@ IA_USER * iaUser = &(it->second);
 
 if (iaUser->password != user->GetProperty().password.Get())
     {
-    InitEncrypt(&iaUser->ctx, user->GetProperty().password.Get());
+    const std::string & password = user->GetProperty().password.Get();
+    InitContext(password.c_str(), password.length(), &iaUser->ctx);
     iaUser->password = user->GetProperty().password.Get();
     }
 
-Decrypt(&iaUser->ctx, static_cast<char *>(buff) + offset, static_cast<char *>(buff) + offset, (dataLen - offset) / 8);
+DecryptString(static_cast<char *>(buff) + offset, static_cast<char *>(buff) + offset, (dataLen - offset), &iaUser->ctx);
 
 char packetName[IA_MAX_TYPE_LEN];
 strncpy(packetName,  static_cast<char *>(buff) + offset + 4, IA_MAX_TYPE_LEN);
@@ -821,7 +845,7 @@ packetName[IA_MAX_TYPE_LEN - 1] = 0;
 std::map<std::string, int>::iterator pi(packetTypes.find(packetName));
 if (pi == packetTypes.end())
     {
-    SendError(sip, sport, protoVer, "îÅÐÒÁ×ÉÌØÎÙÊ ÌÏÇÉÎ ÉÌÉ ÐÁÒÏÌØ!");
+    SendError(sip, sport, protoVer, IconvString("Неправильный логин или пароль.", "utf8", "koi8-ru"));
     printfd(__FILE__, "Login or password is wrong!\n");
     logger("User's connect failed. User: '%s', ip %s. Wrong login or password",
            login.c_str(),
@@ -839,7 +863,7 @@ if (user->IsAuthorizedBy(this) && user->GetCurrIP() != sip)
            login.c_str(),
            inet_ntostring(user->GetCurrIP()).c_str(),
            inet_ntostring(sip).c_str());
-    SendError(sip, sport, protoVer, "÷ÁÛ ÌÏÇÉÎ ÕÖÅ ÉÓÐÏÌØÚÕÅÔÓÑ!");
+    SendError(sip, sport, protoVer, IconvString("Логин уже используется.", "utf8", "koi8-ru"));
     ip2user.erase(it);
     return 0;
     }
@@ -944,7 +968,7 @@ if (!ip)
 
 std::map<uint32_t, IA_USER>::iterator it;
 
-STG_LOCKER lock(&mutex, __FILE__, __LINE__);
+STG_LOCKER lock(&mutex);
 it = ip2user.find(ip);
 if (it == ip2user.end())
     {
@@ -1032,7 +1056,7 @@ printfd(__FILE__, "SendMessage userIP=%s\n", inet_ntostring(ip).c_str());
 
 std::map<uint32_t, IA_USER>::iterator it;
 
-STG_LOCKER lock(&mutex, __FILE__, __LINE__);
+STG_LOCKER lock(&mutex);
 it = ip2user.find(ip);
 if (it == ip2user.end())
     {
@@ -1063,7 +1087,7 @@ SwapBytes(info.len);
 
 char buffer[256];
 memcpy(buffer, &info, sizeof(INFO_6));
-Encrypt(&user.ctx, buffer, buffer, len / 8);
+EncryptString(buffer, buffer, len, &user.ctx);
 return Send(ip, iaSettings.GetUserPort(), buffer, len);
 }
 //-----------------------------------------------------------------------------
@@ -1092,7 +1116,7 @@ info.text[MAX_MSG_LEN - 1] = 0;
 char buffer[300];
 memcpy(buffer, &info, sizeof(INFO_7));
 
-Encrypt(&user.ctx, buffer, buffer, len / 8);
+EncryptString(buffer, buffer, len, &user.ctx);
 return Send(ip, iaSettings.GetUserPort(), buffer, len);
 }
 //-----------------------------------------------------------------------------
@@ -1121,7 +1145,7 @@ SwapBytes(info.sendTime);
 char buffer[1500];
 memcpy(buffer, &info, sizeof(INFO_8));
 
-Encrypt(&user.ctx, buffer, buffer, len / 8);
+EncryptString(buffer, buffer, len, &user.ctx);
 return Send(ip, user.port, buffer, len);
 }
 //-----------------------------------------------------------------------------
@@ -1147,7 +1171,7 @@ int AUTH_IA::Process_CONN_SYN_8(CONN_SYN_8 * connSyn, IA_USER * iaUser, uint32_t
 #ifdef ARCH_BE
 SwapBytes(connSyn->dirs);
 #endif
-int ret = Process_CONN_SYN_6((CONN_SYN_6*)connSyn, iaUser, sip);
+int ret = Process_CONN_SYN_6(reinterpret_cast<CONN_SYN_6 *>(connSyn), iaUser, sip);
 enabledDirs = connSyn->dirs;
 return ret;
 }
@@ -1174,6 +1198,8 @@ if ((iaUser->phase.GetPhase() == 2) && (connAck->rnd == iaUser->rnd + 1))
     else
         {
         errorStr = iaUser->user->GetStrError();
+        if (iaSettings.LogProtocolErrors())
+            logger("IP: %s. User '%s'. Protocol version: %d. CONN_ACK: phase 2, authorization error ('%s').", inet_ntostring(sip).c_str(), iaUser->login.c_str(), iaUser->protoVer, errorStr.c_str());
         iaUser->phase.SetPhase1();
         ip2user.erase(sip);
         printfd(__FILE__, "Phase changed from 2 to 1. Reason: failed to authorize user\n");
@@ -1181,6 +1207,13 @@ if ((iaUser->phase.GetPhase() == 2) && (connAck->rnd == iaUser->rnd + 1))
         }
     }
 printfd(__FILE__, "Invalid phase or control number. Phase: %d. Control number: %d\n", iaUser->phase.GetPhase(), connAck->rnd);
+if (iaSettings.LogProtocolErrors())
+    {
+    if (iaUser->phase.GetPhase() != 2)
+        logger("IP: %s. User '%s'. Protocol version: %d. CONN_ACK: invalid phase, expected 2, got %d.", inet_ntostring(sip).c_str(), iaUser->login.c_str(), iaUser->protoVer, iaUser->phase.GetPhase());
+    if (connAck->rnd != iaUser->rnd + 1)
+        logger("IP: %s. User '%s'. Protocol version: %d. CONN_ACK: invalid control number, expected %d, got %d.", inet_ntostring(sip).c_str(), iaUser->login.c_str(), iaUser->protoVer, (iaUser->rnd + 1), connAck->rnd);
+    }
 return -1;
 }
 //-----------------------------------------------------------------------------
@@ -1210,6 +1243,8 @@ if ((iaUser->phase.GetPhase() == 2) && (connAck->rnd == iaUser->rnd + 1))
     else
         {
         errorStr = iaUser->user->GetStrError();
+        if (iaSettings.LogProtocolErrors())
+            logger("IP: %s. User '%s'. Protocol version: %d. CONN_ACK: phase 2, authorization error ('%s').", inet_ntostring(sip).c_str(), iaUser->login.c_str(), iaUser->protoVer, errorStr.c_str());
         iaUser->phase.SetPhase1();
         ip2user.erase(sip);
         printfd(__FILE__, "Phase changed from 2 to 1. Reason: failed to authorize user\n");
@@ -1217,6 +1252,13 @@ if ((iaUser->phase.GetPhase() == 2) && (connAck->rnd == iaUser->rnd + 1))
         }
     }
 printfd(__FILE__, "Invalid phase or control number. Phase: %d. Control number: %d\n", iaUser->phase.GetPhase(), connAck->rnd);
+if (iaSettings.LogProtocolErrors())
+    {
+    if (iaUser->phase.GetPhase() != 2)
+        logger("IP: %s. User '%s'. Protocol version: %d. CONN_ACK: invalid phase, expected 2, got %d.", inet_ntostring(sip).c_str(), iaUser->login.c_str(), iaUser->protoVer, iaUser->phase.GetPhase());
+    if (connAck->rnd != iaUser->rnd + 1)
+        logger("IP: %s. User '%s'. Protocol version: %d. CONN_ACK: invalid control number, expected %d, got %d.", inet_ntostring(sip).c_str(), iaUser->login.c_str(), iaUser->protoVer, (iaUser->rnd + 1), connAck->rnd);
+    }
 return -1;
 }
 //-----------------------------------------------------------------------------
@@ -1259,11 +1301,13 @@ if ((iaUser->phase.GetPhase() == 3) && (aliveAck->rnd == iaUser->rnd + 1))
 return 0;
 }
 //-----------------------------------------------------------------------------
-int AUTH_IA::Process_DISCONN_SYN_6(DISCONN_SYN_6 *, IA_USER * iaUser, uint32_t)
+int AUTH_IA::Process_DISCONN_SYN_6(DISCONN_SYN_6 *, IA_USER * iaUser, uint32_t sip)
 {
 printfd(__FILE__, "DISCONN_SYN_6\n");
 if (iaUser->phase.GetPhase() != 3)
     {
+    if (iaSettings.LogProtocolErrors())
+        logger("IP: %s. User '%s'. Protocol version: %d. DISCONN_SYN: invalid phase, expected 3, got %d.", inet_ntostring(sip).c_str(), iaUser->login.c_str(), iaUser->protoVer, iaUser->phase.GetPhase());
     printfd(__FILE__, "Invalid phase. Expected 3, actual %d\n", iaUser->phase.GetPhase());
     errorStr = "Incorrect request DISCONN_SYN";
     return -1;
@@ -1280,10 +1324,12 @@ int AUTH_IA::Process_DISCONN_SYN_7(DISCONN_SYN_7 * disconnSyn, IA_USER * iaUser,
 return Process_DISCONN_SYN_6(disconnSyn, iaUser, sip);
 }
 //-----------------------------------------------------------------------------
-int AUTH_IA::Process_DISCONN_SYN_8(DISCONN_SYN_8 *, IA_USER * iaUser, uint32_t)
+int AUTH_IA::Process_DISCONN_SYN_8(DISCONN_SYN_8 *, IA_USER * iaUser, uint32_t sip)
 {
 if (iaUser->phase.GetPhase() != 3)
     {
+    if (iaSettings.LogProtocolErrors())
+        logger("IP: %s. User '%s'. Protocol version: %d. DISCONN_SYN: invalid phase, expected 3, got %d.", inet_ntostring(sip).c_str(), iaUser->login.c_str(), iaUser->protoVer, iaUser->phase.GetPhase());
     errorStr = "Incorrect request DISCONN_SYN";
     printfd(__FILE__, "Invalid phase. Expected 3, actual %d\n", iaUser->phase.GetPhase());
     return -1;
@@ -1297,7 +1343,7 @@ return 0;
 //-----------------------------------------------------------------------------
 int AUTH_IA::Process_DISCONN_ACK_6(DISCONN_ACK_6 * disconnAck,
                                    IA_USER * iaUser,
-                                   uint32_t,
+                                   uint32_t sip,
                                    std::map<uint32_t, IA_USER>::iterator)
 {
 #ifdef ARCH_BE
@@ -1307,6 +1353,13 @@ SwapBytes(disconnAck->rnd);
 printfd(__FILE__, "DISCONN_ACK_6\n");
 if (!((iaUser->phase.GetPhase() == 4) && (disconnAck->rnd == iaUser->rnd + 1)))
     {
+    if (iaSettings.LogProtocolErrors())
+        {
+        if (iaUser->phase.GetPhase() != 4)
+            logger("IP: %s. User '%s'. Protocol version: %d. DISCONN_ACK: invalid phase, expected 4, got %d.", inet_ntostring(sip).c_str(), iaUser->login.c_str(), iaUser->protoVer, iaUser->phase.GetPhase());
+        if (disconnAck->rnd != iaUser->rnd + 1)
+            logger("IP: %s. User '%s'. Protocol version: %d. DISCONN_ACK: invalid control number, expected %d, got %d.", inet_ntostring(sip).c_str(), iaUser->login.c_str(), iaUser->protoVer, (iaUser->rnd + 1), disconnAck->rnd);
+        }
     printfd(__FILE__, "Invalid phase or control number. Phase: %d. Control number: %d\n", iaUser->phase.GetPhase(), disconnAck->rnd);
     return -1;
     }
@@ -1319,7 +1372,7 @@ int AUTH_IA::Process_DISCONN_ACK_7(DISCONN_ACK_7 * disconnAck, IA_USER * iaUser,
 return Process_DISCONN_ACK_6(disconnAck, iaUser, sip, it);
 }
 //-----------------------------------------------------------------------------
-int AUTH_IA::Process_DISCONN_ACK_8(DISCONN_ACK_8 * disconnAck, IA_USER * iaUser, uint32_t, std::map<uint32_t, IA_USER>::iterator)
+int AUTH_IA::Process_DISCONN_ACK_8(DISCONN_ACK_8 * disconnAck, IA_USER * iaUser, uint32_t sip, std::map<uint32_t, IA_USER>::iterator)
 {
 #ifdef ARCH_BE
 SwapBytes(disconnAck->len);
@@ -1328,6 +1381,13 @@ SwapBytes(disconnAck->rnd);
 printfd(__FILE__, "DISCONN_ACK_8\n");
 if (!((iaUser->phase.GetPhase() == 4) && (disconnAck->rnd == iaUser->rnd + 1)))
     {
+    if (iaSettings.LogProtocolErrors())
+        {
+        if (iaUser->phase.GetPhase() != 4)
+            logger("IP: %s. User '%s'. Protocol version: %d. DISCONN_ACK: invalid phase, expected 4, got %d.", inet_ntostring(sip).c_str(), iaUser->login.c_str(), iaUser->protoVer, iaUser->phase.GetPhase());
+        if (disconnAck->rnd != iaUser->rnd + 1)
+            logger("IP: %s. User '%s'. Protocol version: %d. DISCONN_ACK: invalid control number, expected %d, got %d.", inet_ntostring(sip).c_str(), iaUser->login.c_str(), iaUser->protoVer, (iaUser->rnd + 1), disconnAck->rnd);
+        }
     printfd(__FILE__, "Invalid phase or control number. Phase: %d. Control number: %d\n", iaUser->phase.GetPhase(), disconnAck->rnd);
     return -1;
     }
@@ -1364,7 +1424,7 @@ SwapBytes(connSynAck6.userTimeOut);
 SwapBytes(connSynAck6.aliveDelay);
 #endif
 
-Encrypt(&iaUser->ctx, (char*)&connSynAck6, (char*)&connSynAck6, Min8(sizeof(CONN_SYN_ACK_6))/8);
+EncryptString((char*)&connSynAck6, (char*)&connSynAck6, Min8(sizeof(CONN_SYN_ACK_6)), &iaUser->ctx);
 return Send(sip, iaSettings.GetUserPort(), (char*)&connSynAck6, Min8(sizeof(CONN_SYN_ACK_6)));;
 }
 //-----------------------------------------------------------------------------
@@ -1406,7 +1466,7 @@ SwapBytes(connSynAck8.userTimeOut);
 SwapBytes(connSynAck8.aliveDelay);
 #endif
 
-Encrypt(&iaUser->ctx, (char*)&connSynAck8, (char*)&connSynAck8, Min8(sizeof(CONN_SYN_ACK_8))/8);
+EncryptString((char*)&connSynAck8, (char*)&connSynAck8, Min8(sizeof(CONN_SYN_ACK_8)), &iaUser->ctx);
 return Send(sip, iaUser->port, (char*)&connSynAck8, Min8(sizeof(CONN_SYN_ACK_8)));
 }
 //-----------------------------------------------------------------------------
@@ -1487,7 +1547,7 @@ for (int i = 0; i < DIR_NUM; ++i)
     }
 #endif
 
-Encrypt(&(iaUser->ctx), (char*)&aliveSyn6, (char*)&aliveSyn6, Min8(sizeof(aliveSyn6))/8);
+EncryptString((char*)&aliveSyn6, (char*)&aliveSyn6, Min8(sizeof(aliveSyn6)), &iaUser->ctx);
 return Send(sip, iaSettings.GetUserPort(), (char*)&aliveSyn6, Min8(sizeof(aliveSyn6)));
 }
 //-----------------------------------------------------------------------------
@@ -1580,7 +1640,7 @@ for (int i = 0; i < DIR_NUM; ++i)
     }
 #endif
 
-Encrypt(&(iaUser->ctx), (char*)&aliveSyn8, (char*)&aliveSyn8, Min8(sizeof(aliveSyn8))/8);
+EncryptString((char*)&aliveSyn8, (char*)&aliveSyn8, Min8(sizeof(aliveSyn8)), &iaUser->ctx);
 return Send(sip, iaUser->port, (char*)&aliveSyn8, Min8(sizeof(aliveSyn8)));
 }
 //-----------------------------------------------------------------------------
@@ -1595,7 +1655,7 @@ SwapBytes(disconnSynAck6.len);
 SwapBytes(disconnSynAck6.rnd);
 #endif
 
-Encrypt(&iaUser->ctx, (char*)&disconnSynAck6, (char*)&disconnSynAck6, Min8(sizeof(disconnSynAck6))/8);
+EncryptString((char*)&disconnSynAck6, (char*)&disconnSynAck6, Min8(sizeof(disconnSynAck6)), &iaUser->ctx);
 return Send(sip, iaSettings.GetUserPort(), (char*)&disconnSynAck6, Min8(sizeof(disconnSynAck6)));
 }
 //-----------------------------------------------------------------------------
@@ -1619,7 +1679,7 @@ SwapBytes(disconnSynAck8.len);
 SwapBytes(disconnSynAck8.rnd);
 #endif
 
-Encrypt(&iaUser->ctx, (char*)&disconnSynAck8, (char*)&disconnSynAck8, Min8(sizeof(disconnSynAck8))/8);
+EncryptString((char*)&disconnSynAck8, (char*)&disconnSynAck8, Min8(sizeof(disconnSynAck8)), &iaUser->ctx);
 return Send(sip, iaUser->port, (char*)&disconnSynAck8, Min8(sizeof(disconnSynAck8)));
 }
 //-----------------------------------------------------------------------------
@@ -1633,7 +1693,7 @@ strcpy((char*)fin6.ok, "OK");
 SwapBytes(fin6.len);
 #endif
 
-Encrypt(&iaUser->ctx, (char*)&fin6, (char*)&fin6, Min8(sizeof(fin6))/8);
+EncryptString((char*)&fin6, (char*)&fin6, Min8(sizeof(fin6)), &iaUser->ctx);
 
 users->Unauthorize(iaUser->login, this);
 
@@ -1663,7 +1723,7 @@ strcpy((char*)fin8.ok, "OK");
 SwapBytes(fin8.len);
 #endif
 
-Encrypt(&iaUser->ctx, (char*)&fin8, (char*)&fin8, Min8(sizeof(fin8))/8);
+EncryptString((char*)&fin8, (char*)&fin8, Min8(sizeof(fin8)), &iaUser->ctx);
 
 users->Unauthorize(iaUser->login, this);
 
@@ -1673,30 +1733,3 @@ ip2user.erase(it);
 
 return res;
 }
-namespace
-{
-//-----------------------------------------------------------------------------
-inline
-void InitEncrypt(BLOWFISH_CTX * ctx, const std::string & password)
-{
-unsigned char keyL[PASSWD_LEN];
-memset(keyL, 0, PASSWD_LEN);
-strncpy((char *)keyL, password.c_str(), PASSWD_LEN);
-Blowfish_Init(ctx, keyL, PASSWD_LEN);
-}
-//-----------------------------------------------------------------------------
-inline
-void Decrypt(BLOWFISH_CTX * ctx, void * dst, const void * src, size_t len8)
-{
-for (size_t i = 0; i < len8; i++)
-    DecodeString(static_cast<char *>(dst) + i * 8, static_cast<const char *>(src) + i * 8, ctx);
-}
-//-----------------------------------------------------------------------------
-inline
-void Encrypt(BLOWFISH_CTX * ctx, void * dst, const void * src, size_t len8)
-{
-for (size_t i = 0; i < len8; i++)
-    EncodeString(static_cast<char *>(dst) + i * 8, static_cast<const char *>(src) + i * 8, ctx);
-}
-//-----------------------------------------------------------------------------
-}