From 5223bc7c163c9cd52e9ae4d8ad93a96e40e86632 Mon Sep 17 00:00:00 2001
From: Maxim Mamontov <faust@gts.dp.ua>
Date: Mon, 30 May 2011 18:47:19 +0300
Subject: [PATCH] Base plugin structure implemented for SNMP Agent plugin

---
 .../stargazer/plugins/other/snmp/snmp.cpp     | 93 +++++++++++++++++++
 projects/stargazer/plugins/other/snmp/snmp.h  | 69 ++++++++++++++
 2 files changed, 162 insertions(+)
 create mode 100644 projects/stargazer/plugins/other/snmp/snmp.h

diff --git a/projects/stargazer/plugins/other/snmp/snmp.cpp b/projects/stargazer/plugins/other/snmp/snmp.cpp
index e69de29b..4d26a8b9 100644
--- a/projects/stargazer/plugins/other/snmp/snmp.cpp
+++ b/projects/stargazer/plugins/other/snmp/snmp.cpp
@@ -0,0 +1,93 @@
+#include "asn1/OpenPDU.h"
+
+#include "snmp.h"
+#include "stg/common.h"
+
+class SNMP_AGENT_CREATOR
+{
+private:
+    SNMP_AGENT * snmpAgent;
+
+public:
+    SNMP_AGENT_CREATOR()
+        : snmpAgent(new SNMP_AGENT())
+        {
+        };
+    ~SNMP_AGENT_CREATOR()
+        {
+        delete snmpAgent;
+        };
+
+    SNMP_AGENT * GetPlugin()
+        {
+        return snmpAgent;
+        };
+};
+
+SNMP_AGENT_CREATOR pc;
+
+int output(const void * buffer, size_t size, void * data)
+{
+int * fd = static_cast<int *>(data);
+return write(*fd, buffer, size);
+}
+
+int SendOpenPDU(int fd, OpenPDU & msg)
+{
+asn_enc_rval_t error;
+
+error = der_encode(&asn_DEF_OpenPDU, &msg, output, &fd);
+
+if (error.encoded == -1)
+    {
+    printfd(__FILE__, "Could not encode OpenPDU (at %s)\n",
+            error.failed_type ? error.failed_type->name : "unknown");
+    return -1;
+    }
+else
+    {
+    printfd(__FILE__, "OpenPDU encoded successfully");
+    }
+return 0;
+}
+
+SNMP_AGENT::SNMP_AGENT()
+    : PLUGIN(),
+      running(false),
+      stopped(true)
+{
+pthread_mutex_init(&mutex, NULL);
+}
+
+SNMP_AGENT::~SNMP_AGENT()
+{
+pthread_mutex_destroy(&mutex);
+}
+
+int SNMP_AGENT::ParseSettings()
+{
+return 0;
+}
+
+int SNMP_AGENT::Start()
+{
+return 0;
+}
+
+int SNMP_AGENT::Stop()
+{
+return 0;
+}
+
+void * SNMP_AGENT::Runner(void * d)
+{
+SNMP_AGENT * snmpAgent = static_cast<SNMP_AGENT *>(d);
+
+snmpAgent->Run();
+
+return NULL;
+}
+
+void SNMP_AGENT::Run()
+{
+}
diff --git a/projects/stargazer/plugins/other/snmp/snmp.h b/projects/stargazer/plugins/other/snmp/snmp.h
new file mode 100644
index 00000000..7f4d67d1
--- /dev/null
+++ b/projects/stargazer/plugins/other/snmp/snmp.h
@@ -0,0 +1,69 @@
+#ifndef __SNMP_AGENT_H__
+#define __SNMP_AGENT_H__
+
+#include <pthread.h>
+
+#include <string>
+#include <list>
+
+#include "stg/os_int.h"
+#include "stg/plugin.h"
+#include "stg/module_settings.h"
+#include "stg/users.h"
+
+extern "C" PLUGIN * GetPlugin();
+
+class USER;
+class SETTINGS;
+//-----------------------------------------------------------------------------
+class SNMP_AGENT_SETTINGS {
+public:
+    SNMP_AGENT_SETTINGS();
+    virtual ~SNMP_AGENT_SETTINGS() {}
+    const std::string & GetStrError() const { return errorStr; }
+    int ParseSettings(const MODULE_SETTINGS & s);
+
+private:
+    mutable std::string errorStr;
+};
+//-----------------------------------------------------------------------------
+class SNMP_AGENT : public PLUGIN {
+public:
+    SNMP_AGENT();
+    virtual ~SNMP_AGENT();
+
+    void SetUsers(USERS *) {}
+    void SetTariffs(TARIFFS *) {}
+    void SetAdmins(ADMINS *) {}
+    void SetTraffcounter(TRAFFCOUNTER *) {}
+    void SetStore(STORE *) {}
+    void SetStgSettings(const SETTINGS *) {}
+    void SetSettings(const MODULE_SETTINGS &) {}
+    int ParseSettings();
+
+    int Start();
+    int Stop();
+    int Reload() { return 0; }
+    bool IsRunning() { return running && !stopped; }
+
+    const std::string & GetStrError() const { return errorStr; }
+    const std::string GetVersion() const { return "Stg SNMP Agent 1.0"; }
+    uint16_t GetStartPosition() const { return 100; }
+    uint16_t GetStopPosition() const { return 100; }
+
+private:
+    static void * Runner(void * d);
+    void Run();
+
+    mutable std::string errorStr;
+    SNMP_AGENT_SETTINGS snmpAgentSettings;
+    MODULE_SETTINGS settings;
+
+    pthread_t thread;
+    pthread_mutex_t mutex;
+    bool running;
+    bool stopped;
+};
+//-----------------------------------------------------------------------------
+
+#endif
-- 
2.43.2