Radiusю (#12)

[stg.git] / projects / stargazer / plugins / other / radius / radius.cpp

diff --git a/projects/stargazer/plugins/other/radius/radius.cpp b/projects/stargazer/plugins/other/radius/radius.cpp
index fe989b288d42bc3c954a075fa1183724805be367..68291dcfd63b9783191a52f337444e1b6779fbbf 100644 (file)
--- a/projects/stargazer/plugins/other/radius/radius.cpp
+++ b/projects/stargazer/plugins/other/radius/radius.cpp
@@ -1,186 +1,227 @@
-/*
- *    This program 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; either version 2 of the License, or
- *    (at your option) any later version.
- *
- *    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, write to the Free Software
- *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-/*
- *    Author : Maxim Mamontov <faust@stargazer.dp.ua>
- */
-

 #include "radius.h"
 #include "radius.h"

-
-#include "stg/store.h"
-#include "stg/users.h"
-#include "stg/plugin_creator.h"
-
-#include <csignal>
-#include <cerror>
-#include <cstring>
+#include "radproto/error.h"
+#include "stg/common.h"
+#include <boost/tokenizer.hpp>
+
+#include <vector>
+#include <utility>
+#include <iterator>
+#include <algorithm>
+#include <iostream>
+
+using STG::RADIUS;
+using STG::RAD_SETTINGS;
+using AttrValue = RAD_SETTINGS::AttrValue;
+using ASection = RAD_SETTINGS::ASection;
+
+extern "C" STG::Plugin* GetPlugin()
+{
+    static RADIUS plugin;
+    return &plugin;
+}

 
 namespace
 {
 
 namespace
 {

+    std::string ShowRules(const std::vector<std::pair<std::string, AttrValue>>& attributes)
+    {
+        std::string result;
+        for (const auto& at : attributes)
+        {
+            if (!result.empty())
+                result += ", ";

 
 

-PLUGIN_CREATOR<RADIUS> creator;
-
+            if (at.second.type == AttrValue::Type::PARAM_NAME)
+                result.append(at.first + " = " + at.second.value);
+            else
+                result.append(at.first + " = '" + at.second.value + "'");
+        }
+        return result;
+    }

 }
 
 }
 

-extern "C" PLUGIN * GetPlugin()
+std::vector<std::pair<std::string, AttrValue>> RAD_SETTINGS::ParseRules(const std::string& value, const std::string& paramName)

 {
 {

-    return creator.GetPlugin();
-}
+    using tokenizer =  boost::tokenizer<boost::char_separator<char>>;
+    const boost::char_separator<char> sep(",");

 
 

-RADIUS::RADIUS()
-    : m_running(false),
-      m_stopped(true),
-      m_users(NULL),
-      m_store(NULL),
-      m_logger(GetPluginLogger(GetStgLogger(), "radius"))
-{
-}
+    const tokenizer tokens(value, sep);

 
 

-int RADIUS::ParseSettings()
-{
-    try {
-        m_config = STG::Config(m_settings);
-        return 0;
-    } catch (const std::runtime_error& ex) {
-        m_logger("Failed to parse settings. %s", ex.what());
-        return -1;
+    std::vector<std::pair<std::string, AttrValue>> res;
+    for (const auto& token : tokens)
+    {
+        const boost::char_separator<char> sp(" =");
+        const tokenizer tok(token, sp);
+
+        std::vector<std::string> keyValue;
+        for (const auto& t : tok)
+            keyValue.push_back(t);
+
+        if (keyValue.size() != 2)
+        {
+            m_logger("The '%s' attribute specification has an incorrect format: '%s'.", paramName.c_str(),  token.c_str());
+            printfd(__FILE__, "The '%s' attribute specification has an incorrect format: '%s'.", paramName.c_str(), token.c_str());
+            return {};
+        }
+
+        auto type = AttrValue::Type::PARAM_NAME;
+        std::string valueName = keyValue[1];
+        if (valueName.front() == '\'' && valueName.back() == '\'')
+        {
+            type = AttrValue::Type::VALUE;
+            valueName.erase(0, 1);
+            valueName.erase(valueName.length() - 1, 1);
+        }
+        else if ((valueName.front() == '\'' && valueName.back() != '\'') || (valueName.front() != '\'' && valueName.back() == '\''))
+        {
+            m_logger("Error ParseRules: '%s' attribute parameter value is invalid.\n", paramName.c_str());
+            printfd(__FILE__, "Error ParseRules: '%s' attribute parameter value is invalid.\n", paramName.c_str());
+            return {};
+        }
+        res.emplace_back(keyValue[0], AttrValue{valueName, type});

     }
     }

+    return res;

 }
 
 }
 

-int RADIUS::Start()
+ASection RAD_SETTINGS::parseASection(const std::vector<ParamValue>& conf)

 {
 {

-    if (m_running)
-        return 0;
+    ASection res;
+    const auto mit = std::find(conf.begin(), conf.end(), ParamValue("match", {}));
+    if (mit != conf.end())
+        res.match = ParseRules(mit->value[0], mit->param);

 
 

-    int res = pthread_create(&m_thread, NULL, run, this);
-    if (res == 0)
-        return 0;
+    const auto sit = std::find(conf.begin(), conf.end(), ParamValue("send", {}));
+    if (sit != conf.end())
+        res.send = ParseRules(sit->value[0], sit->param);

 
 

-    m_error = strerror(res);
-    m_logger("Failed to create thread: '" + m_error + "'.");
-    return -1;
+    return res;

 }
 
 }
 

-int RADIUS::Stop()
-{
-    if (m_stopped)
-        return 0;
+RAD_SETTINGS::RAD_SETTINGS()
+    : m_port(1812),
+      m_dictionaries("/usr/share/freeradius/dictionary"),
+      m_logger(PluginLogger::get("radius"))
+{}

 
 

-    m_running = false;
+int RAD_SETTINGS::ParseSettings(const ModuleSettings & s)
+{
+    ParamValue pv;
+    int p;

 
 

-    for (size_t i = 0; i < 25 && !m_stopped; i++) {
-        struct timespec ts = {0, 200000000};
-        nanosleep(&ts, NULL);
+    pv.param = "Port";
+    auto pvi = std::find(s.moduleParams.begin(), s.moduleParams.end(), pv);
+    if (pvi != s.moduleParams.end() && !pvi->value.empty())
+    {
+        if (ParseIntInRange(pvi->value[0], 2, 65535, &p) != 0)
+        {
+            m_errorStr = "Cannot parse parameter \'Port\': " + m_errorStr;
+            printfd(__FILE__, "Cannot parse parameter 'Port'\n");
+            return -1;
+        }
+        m_port = static_cast<uint16_t>(p);

     }
 
     }
 

-    if (m_stopped) {
-        pthread_join(m_thread, NULL);
-        return 0;
+    pv.param = "Secret";
+    pvi = std::find(s.moduleParams.begin(), s.moduleParams.end(), pv);
+    if (pvi == s.moduleParams.end() || pvi->value.empty())
+    {
+        m_errorStr = "Parameter \'Secret\' not found.";
+        printfd(__FILE__, "Parameter 'Secret' not found\n");
+        m_secret = "";

     }
     }

+    else
+        m_secret = pvi->value[0];

 
 

-    m_error = "Failed to stop thread.";
-    m_logger(m_error);
-    return -1;
-}
-//-----------------------------------------------------------------------------
-void* RADIUS::run(void* d)
-{
-    sigset_t signalSet;
-    sigfillset(&signalSet);
-    pthread_sigmask(SIG_BLOCK, &signalSet, NULL);
+    pv.param = "Dictionaries";
+    pvi = std::find(s.moduleParams.begin(), s.moduleParams.end(), pv);
+    if (pvi != s.moduleParams.end() && !pvi->value.empty())
+        m_dictionaries = pvi->value[0];
+
+    const auto authIt = std::find(s.moduleParams.begin(), s.moduleParams.end(), ParamValue("auth", {}));
+    if (authIt != s.moduleParams.end())
+        m_auth = parseASection(authIt->sections);

 
 

-    static_cast<RADIUS *>(d)->runImpl();
+    const auto autzIt = std::find(s.moduleParams.begin(), s.moduleParams.end(), ParamValue("autz", {}));
+    if (autzIt != s.moduleParams.end())
+        m_autz = parseASection(autzIt->sections);

 
 

-    return NULL;
+    printfd(__FILE__, " auth.match = \"%s\"\n", ShowRules(m_auth.match).c_str());
+    printfd(__FILE__, " auth.send = \"%s\"\n", ShowRules(m_auth.send).c_str());
+    printfd(__FILE__, " autz.match = \"%s\"\n", ShowRules(m_autz.match).c_str());
+    printfd(__FILE__, " autz.send = \"%s\"\n", ShowRules(m_autz.send).c_str());
+
+    return 0;

 }
 
 }
 

-void RADIUS::runImpl()
+RADIUS::RADIUS()
+    : m_running(false),
+      m_users(NULL),
+      m_logger(PluginLogger::get("radius"))

 {
 {

-    m_running = true;
+}

 
 

-    while (m_running) {
-        fd_set fds;
+int RADIUS::ParseSettings()
+{
+    auto ret = m_radSettings.ParseSettings(m_settings);
+    if (ret != 0)
+        m_errorStr = m_radSettings.GetStrError();

 
 

-        buildFDSet(fds);
+    return ret;
+}

 
 

-        struct timeval tv;
-        tv.tv_sec = 0;
-        tv.tv_usec = 500000;
+std::string RADIUS::GetVersion() const
+{
+    return "Radius v.1.0";
+}

 
 

-        int res = select(maxFD() + 1, &fds, NULL, NULL, &tv);
-        if (res < 0)
-        {
-            m_error = std::string("'select' is failed: '") + strerror(errno) + "'.";
-            m_logger(m_error);
-            break;
-        }
+int RADIUS::Start()
+{
+    m_thread = std::jthread([this](auto token){ Run(std::move(token)); });
+    return 0;
+}

 
 

-        if (!m_running)
-            break;
+int RADIUS::Stop()
+{
+    if (!m_thread.joinable())
+        return 0;

 
 

-        if (res > 0)
-            handleEvents(fds);
+    m_thread.request_stop();

 
 

-        cleanupConns();
-    }
+    if (m_server)
+        m_server->stop();

 
 

-    m_stopped = true;
+    m_thread.join();
+    return 0;

 }
 
 }
 

-int RADIUS::maxFD() const
+bool RADIUS::IsRunning()

 {
 {

-    int maxFD = m_listenSocket;
-    std::deque<STG::Conn *>::const_iterator it;
-    for (it = m_conns.begin(); it != m_conns.end(); ++it)
-        if (maxFD < (*it)->sock())
-            maxFD = (*it)->sock();
-    return maxFD;
+    const std::lock_guard lock(m_mutex);
+    return m_running;

 }
 
 }
 

-void RADIUS::buildFDSet(fd_set & fds) const
+void RADIUS::SetRunning(bool val)

 {
 {

-    FD_ZERO(&fds);
-    FD_SET(m_listenSocket, &fds);
-    std::deque<STG::Conn *>::const_iterator it;
-    for (it = m_conns.begin(); it != m_conns.end(); ++it)
-        FD_SET((*it)->sock(), &fds);
+    const std::lock_guard lock(m_mutex);
+    m_running = val;

 }
 
 }
 

-void RADIUS::cleanupConns()
+int RADIUS::Run(std::stop_token token)

 {
 {

-    std::deque<STG::Conn *>::iterator pos;
-    for (pos = m_conns.begin(); pos != m_conns.end(); ++pos)
-        if (((*pos)->isDone() && !(*pos)->isKeepAlive()) || !(*pos)->isOk()) {
-            delete *pos;
-            *pos = NULL;
-        }
+    SetRunning(true);

 
 

-    pos = std::remove(m_conns.begin(), m_conns.end(), static_cast<STG::Conn *>(NULL));
-    m_conns.erase(pos, m_conns.end());
-}
-
-void RADIUS::handleEvents(const fd_set & fds)
-{
-    if (FD_ISSET(m_listenSocket, &fds))
-        acceptConnection();
-    else
+    try
+    {
+        if (!m_server)
+           m_server = std::make_unique<Server>(m_ioContext, m_radSettings.GetSecret(), m_radSettings.GetPort(), m_radSettings.GetDictionaries(), std::move(token), m_logger, m_users);
+        m_ioContext.run();
+    }
+    catch (const std::exception& e)

     {
     {

-        std::deque<STG::Conn *>::iterator it;
-        for (it = m_conns.begin(); it != m_conns.end(); ++it)
-            if (FD_ISSET((*it)->sock(), &fds))
-                (*it)->read();
+        m_errorStr = "Exception in RADIUS::Run(): " + std::string(e.what());
+        m_logger("Exception in RADIUS:: Run(): %s", e.what());
+        printfd(__FILE__, "Exception in RADIUS:: Run(). Message: '%s'\n", e.what());

     }
     }

+
+    SetRunning(false);
+    return 0;

 }
 }