mirror of https://github.com/PurpleI2P/i2pd
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
707 lines
19 KiB
C++
707 lines
19 KiB
C++
#include <cstdlib>
|
|
#include <string>
|
|
#include <algorithm>
|
|
#include <cctype>
|
|
#include <functional>
|
|
#include <fstream>
|
|
#include <set>
|
|
#include <boost/asio.hpp>
|
|
#include <boost/filesystem.hpp>
|
|
#include <boost/filesystem/fstream.hpp>
|
|
#include <boost/foreach.hpp>
|
|
#include <boost/lexical_cast.hpp>
|
|
#include <boost/program_options/detail/config_file.hpp>
|
|
#include <boost/program_options/parsers.hpp>
|
|
#include <boost/algorithm/string.hpp>
|
|
#include "util.h"
|
|
#include "Log.h"
|
|
|
|
#if defined(__linux__) || defined(__FreeBSD_kernel__) || defined(__APPLE__) || defined(__OpenBSD__)
|
|
#include <sys/types.h>
|
|
#include <ifaddrs.h>
|
|
#elif defined(WIN32)
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
#include <winsock2.h>
|
|
#include <ws2tcpip.h>
|
|
#include <iphlpapi.h>
|
|
#include <shlobj.h>
|
|
|
|
#pragma comment(lib, "IPHLPAPI.lib")
|
|
|
|
#define MALLOC(x) HeapAlloc(GetProcessHeap(), 0, (x))
|
|
#define FREE(x) HeapFree(GetProcessHeap(), 0, (x))
|
|
|
|
int inet_pton(int af, const char *src, void *dst)
|
|
{ /* This function was written by Petar Korponai?. See
|
|
http://stackoverflow.com/questions/15660203/inet-pton-identifier-not-found */
|
|
struct sockaddr_storage ss;
|
|
int size = sizeof (ss);
|
|
char src_copy[INET6_ADDRSTRLEN + 1];
|
|
|
|
ZeroMemory (&ss, sizeof (ss));
|
|
strncpy_s (src_copy, src, INET6_ADDRSTRLEN + 1);
|
|
src_copy[INET6_ADDRSTRLEN] = 0;
|
|
|
|
if (WSAStringToAddress (src_copy, af, NULL, (struct sockaddr *)&ss, &size) == 0)
|
|
{
|
|
switch (af)
|
|
{
|
|
case AF_INET:
|
|
*(struct in_addr *)dst = ((struct sockaddr_in *)&ss)->sin_addr;
|
|
return 1;
|
|
case AF_INET6:
|
|
*(struct in6_addr *)dst = ((struct sockaddr_in6 *)&ss)->sin6_addr;
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
namespace i2p
|
|
{
|
|
namespace util
|
|
{
|
|
|
|
namespace config
|
|
{
|
|
std::map<std::string, std::string> mapArgs;
|
|
std::map<std::string, std::vector<std::string> > mapMultiArgs;
|
|
|
|
void OptionParser(int argc, const char* const argv[])
|
|
{
|
|
mapArgs.clear();
|
|
mapMultiArgs.clear();
|
|
for (int i = 1; i < argc; i++)
|
|
{
|
|
std::string strKey (argv[i]);
|
|
std::string strValue;
|
|
size_t has_data = strKey.find('=');
|
|
if (has_data != std::string::npos)
|
|
{
|
|
strValue = strKey.substr(has_data+1);
|
|
strKey = strKey.substr(0, has_data);
|
|
}
|
|
|
|
#ifdef WIN32
|
|
boost::to_lower(strKey);
|
|
if (boost::algorithm::starts_with(strKey, "/"))
|
|
strKey = "-" + strKey.substr(1);
|
|
#endif
|
|
if (strKey[0] != '-')
|
|
break;
|
|
|
|
mapArgs[strKey] = strValue;
|
|
mapMultiArgs[strKey].push_back(strValue);
|
|
}
|
|
|
|
BOOST_FOREACH(PAIRTYPE(const std::string,std::string)& entry, mapArgs)
|
|
{
|
|
std::string name = entry.first;
|
|
|
|
// interpret --foo as -foo (as long as both are not set)
|
|
if (name.find("--") == 0)
|
|
{
|
|
std::string singleDash(name.begin()+1, name.end());
|
|
if (mapArgs.count(singleDash) == 0)
|
|
mapArgs[singleDash] = entry.second;
|
|
name = singleDash;
|
|
}
|
|
}
|
|
}
|
|
|
|
const char* GetCharArg(const std::string& strArg, const std::string& nDefault)
|
|
{
|
|
if (mapArgs.count(strArg))
|
|
return mapArgs[strArg].c_str();
|
|
return nDefault.c_str();
|
|
}
|
|
|
|
std::string GetArg(const std::string& strArg, const std::string& strDefault)
|
|
{
|
|
if (mapArgs.count(strArg))
|
|
return mapArgs[strArg];
|
|
return strDefault;
|
|
}
|
|
|
|
int GetArg(const std::string& strArg, int nDefault)
|
|
{
|
|
if (mapArgs.count(strArg))
|
|
return atoi(mapArgs[strArg].c_str());
|
|
return nDefault;
|
|
}
|
|
}
|
|
|
|
namespace filesystem
|
|
{
|
|
std::string appName ("i2pd");
|
|
|
|
void SetAppName (const std::string& name)
|
|
{
|
|
appName = name;
|
|
}
|
|
|
|
std::string GetAppName ()
|
|
{
|
|
return appName;
|
|
}
|
|
|
|
const boost::filesystem::path &GetDataDir()
|
|
{
|
|
static boost::filesystem::path path;
|
|
|
|
// TODO: datadir parameter is useless because GetDataDir is called before OptionParser
|
|
// and mapArgs is not initialized yet
|
|
/*if (i2p::util::config::mapArgs.count("-datadir"))
|
|
path = boost::filesystem::system_complete(i2p::util::config::mapArgs["-datadir"]);
|
|
else */
|
|
path = GetDefaultDataDir();
|
|
|
|
if (!boost::filesystem::exists( path ))
|
|
{
|
|
// Create data directory
|
|
if (!boost::filesystem::create_directory( path ))
|
|
{
|
|
LogPrint("Failed to create data directory!");
|
|
path = "";
|
|
return path;
|
|
}
|
|
}
|
|
if (!boost::filesystem::is_directory(path))
|
|
path = GetDefaultDataDir();
|
|
return path;
|
|
}
|
|
|
|
std::string GetFullPath (const std::string& filename)
|
|
{
|
|
std::string fullPath = GetDataDir ().string ();
|
|
#ifndef _WIN32
|
|
fullPath.append ("/");
|
|
#else
|
|
fullPath.append ("\\");
|
|
#endif
|
|
fullPath.append (filename);
|
|
return fullPath;
|
|
}
|
|
|
|
boost::filesystem::path GetConfigFile()
|
|
{
|
|
boost::filesystem::path pathConfigFile(i2p::util::config::GetArg("-conf", "i2p.conf"));
|
|
if (!pathConfigFile.is_complete()) pathConfigFile = GetDataDir() / pathConfigFile;
|
|
return pathConfigFile;
|
|
}
|
|
|
|
boost::filesystem::path GetTunnelsConfigFile()
|
|
{
|
|
boost::filesystem::path pathTunnelsConfigFile(i2p::util::config::GetArg("-tunnelscfg", "tunnels.cfg"));
|
|
if (!pathTunnelsConfigFile.is_complete())
|
|
pathTunnelsConfigFile = GetDataDir() / pathTunnelsConfigFile;
|
|
return pathTunnelsConfigFile;
|
|
}
|
|
|
|
void ReadConfigFile(std::map<std::string, std::string>& mapSettingsRet,
|
|
std::map<std::string, std::vector<std::string> >& mapMultiSettingsRet)
|
|
{
|
|
boost::filesystem::ifstream streamConfig(GetConfigFile());
|
|
if (!streamConfig.good())
|
|
return; // No i2pd.conf file is OK
|
|
|
|
std::set<std::string> setOptions;
|
|
setOptions.insert("*");
|
|
|
|
for (boost::program_options::detail::config_file_iterator it(streamConfig, setOptions), end; it != end; ++it)
|
|
{
|
|
// Don't overwrite existing settings so command line settings override i2pd.conf
|
|
std::string strKey = std::string("-") + it->string_key;
|
|
if (mapSettingsRet.count(strKey) == 0)
|
|
{
|
|
mapSettingsRet[strKey] = it->value[0];
|
|
}
|
|
mapMultiSettingsRet[strKey].push_back(it->value[0]);
|
|
}
|
|
}
|
|
|
|
boost::filesystem::path GetDefaultDataDir()
|
|
{
|
|
// Windows < Vista: C:\Documents and Settings\Username\Application Data\i2pd
|
|
// Windows >= Vista: C:\Users\Username\AppData\Roaming\i2pd
|
|
// Mac: ~/Library/Application Support/i2pd
|
|
// Unix: ~/.i2pd or /var/lib/i2pd is system=1
|
|
#ifdef WIN32
|
|
// Windows
|
|
char localAppData[MAX_PATH];
|
|
SHGetFolderPath(NULL, CSIDL_APPDATA, 0, NULL, localAppData);
|
|
return boost::filesystem::path(std::string(localAppData) + "\\" + appName);
|
|
#else
|
|
if (i2p::util::config::GetArg("-service", 0)) // use system folder
|
|
return boost::filesystem::path(std::string ("/var/lib/") + appName);
|
|
boost::filesystem::path pathRet;
|
|
char* pszHome = getenv("HOME");
|
|
if (pszHome == NULL || strlen(pszHome) == 0)
|
|
pathRet = boost::filesystem::path("/");
|
|
else
|
|
pathRet = boost::filesystem::path(pszHome);
|
|
#ifdef MAC_OSX
|
|
// Mac
|
|
pathRet /= "Library/Application Support";
|
|
boost::filesystem::create_directory(pathRet);
|
|
return pathRet / appName;
|
|
#else
|
|
// Unix
|
|
return pathRet / (std::string (".") + appName);
|
|
#endif
|
|
#endif
|
|
}
|
|
|
|
boost::filesystem::path GetCertificatesDir()
|
|
{
|
|
return GetDataDir () / "certificates";
|
|
}
|
|
}
|
|
|
|
namespace http
|
|
{
|
|
std::string httpRequest(const std::string& address)
|
|
{
|
|
try
|
|
{
|
|
i2p::util::http::url u(address);
|
|
boost::asio::ip::tcp::iostream site;
|
|
// please don't uncomment following line because it's not compatible with boost 1.46
|
|
// 1.46 is default boost for Ubuntu 12.04 LTS
|
|
//site.expires_from_now (boost::posix_time::seconds(30));
|
|
if (u.port_ == 80)
|
|
site.connect(u.host_, "http");
|
|
else
|
|
{
|
|
std::stringstream ss; ss << u.port_;
|
|
site.connect(u.host_, ss.str());
|
|
}
|
|
if (site)
|
|
{
|
|
// User-Agent is needed to get the server list routerInfo files.
|
|
site << "GET " << u.path_ << " HTTP/1.1\r\nHost: " << u.host_
|
|
<< "\r\nAccept: */*\r\n" << "User-Agent: Wget/1.11.4\r\n" << "Connection: close\r\n\r\n";
|
|
// read response and extract content
|
|
return GetHttpContent (site);
|
|
}
|
|
else
|
|
{
|
|
LogPrint ("Can't connect to ", address);
|
|
return "";
|
|
}
|
|
}
|
|
catch (std::exception& ex)
|
|
{
|
|
LogPrint ("Failed to download ", address, " : ", ex.what ());
|
|
return "";
|
|
}
|
|
}
|
|
|
|
std::string GetHttpContent (std::istream& response)
|
|
{
|
|
std::string version, statusMessage;
|
|
response >> version; // HTTP version
|
|
int status;
|
|
response >> status; // status
|
|
std::getline (response, statusMessage);
|
|
if (status == 200) // OK
|
|
{
|
|
bool isChunked = false;
|
|
std::string header;
|
|
while (!response.eof () && header != "\r")
|
|
{
|
|
std::getline(response, header);
|
|
auto colon = header.find (':');
|
|
if (colon != std::string::npos)
|
|
{
|
|
std::string field = header.substr (0, colon);
|
|
if (field == i2p::util::http::TRANSFER_ENCODING)
|
|
isChunked = (header.find ("chunked", colon + 1) != std::string::npos);
|
|
}
|
|
}
|
|
|
|
std::stringstream ss;
|
|
if (isChunked)
|
|
MergeChunkedResponse (response, ss);
|
|
else
|
|
ss << response.rdbuf();
|
|
return ss.str();
|
|
}
|
|
else
|
|
{
|
|
LogPrint ("HTTP response ", status);
|
|
return "";
|
|
}
|
|
}
|
|
|
|
void MergeChunkedResponse (std::istream& response, std::ostream& merged)
|
|
{
|
|
while (!response.eof ())
|
|
{
|
|
std::string hexLen;
|
|
int len;
|
|
std::getline (response, hexLen);
|
|
std::istringstream iss (hexLen);
|
|
iss >> std::hex >> len;
|
|
if (!len) break;
|
|
char * buf = new char[len];
|
|
response.read (buf, len);
|
|
merged.write (buf, len);
|
|
delete[] buf;
|
|
std::getline (response, hexLen); // read \r\n after chunk
|
|
}
|
|
}
|
|
|
|
int httpRequestViaI2pProxy(const std::string& address, std::string &content)
|
|
{
|
|
content = "";
|
|
try
|
|
{
|
|
boost::asio::ip::tcp::iostream site;
|
|
// please don't uncomment following line because it's not compatible with boost 1.46
|
|
// 1.46 is default boost for Ubuntu 12.04 LTS
|
|
//site.expires_from_now (boost::posix_time::seconds(30));
|
|
{
|
|
std::stringstream ss; ss << i2p::util::config::GetArg("-httpproxyport", 4446);
|
|
site.connect("127.0.0.1", ss.str());
|
|
}
|
|
if (site)
|
|
{
|
|
i2p::util::http::url u(address);
|
|
std::stringstream ss;
|
|
ss << "GET " << address << " HTTP/1.0" << std::endl;
|
|
ss << "Host: " << u.host_ << std::endl;
|
|
ss << "Accept: */*" << std::endl;
|
|
ss << "User - Agent: Wget / 1.11.4" << std::endl;
|
|
ss << "Connection: close" << std::endl;
|
|
ss << std::endl;
|
|
site << ss.str();
|
|
|
|
// read response
|
|
std::string version, statusMessage;
|
|
site >> version; // HTTP version
|
|
int status;
|
|
site >> status; // status
|
|
std::getline(site, statusMessage);
|
|
if (status == 200) // OK
|
|
{
|
|
std::string header;
|
|
while (std::getline(site, header) && header != "\r"){}
|
|
std::stringstream ss;
|
|
ss << site.rdbuf();
|
|
content = ss.str();
|
|
return status;
|
|
}
|
|
else
|
|
{
|
|
LogPrint("HTTP response ", status);
|
|
return status;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
LogPrint("Can't connect to proxy");
|
|
return 408;
|
|
}
|
|
}
|
|
catch (std::exception& ex)
|
|
{
|
|
LogPrint("Failed to download ", address, " : ", ex.what());
|
|
return 408;
|
|
}
|
|
}
|
|
|
|
url::url(const std::string& url_s)
|
|
{
|
|
portstr_ = "80";
|
|
port_ = 80;
|
|
user_ = "";
|
|
pass_ = "";
|
|
|
|
parse(url_s);
|
|
}
|
|
|
|
|
|
// code for parser tests
|
|
//{
|
|
// i2p::util::http::url u_0("http://127.0.0.1:7070/asdasd?qqqqqqqqqqqq");
|
|
// i2p::util::http::url u_1("http://user:password@site.com:8080/asdasd?qqqqqqqqqqqqq");
|
|
// i2p::util::http::url u_2("http://user:password@site.com/asdasd?qqqqqqqqqqqqqq");
|
|
// i2p::util::http::url u_3("http://user:@site.com/asdasd?qqqqqqqqqqqqq");
|
|
// i2p::util::http::url u_4("http://user@site.com/asdasd?qqqqqqqqqqqq");
|
|
// i2p::util::http::url u_5("http://@site.com:800/asdasd?qqqqqqqqqqqq");
|
|
// i2p::util::http::url u_6("http://@site.com:err_port/asdasd?qqqqqqqqqqqq");
|
|
// i2p::util::http::url u_7("http://user:password@site.com:err_port/asdasd?qqqqqqqqqqqq");
|
|
//}
|
|
void url::parse(const std::string& url_s)
|
|
{
|
|
const std::string prot_end("://");
|
|
std::string::const_iterator prot_i = search(url_s.begin(), url_s.end(),
|
|
prot_end.begin(), prot_end.end());
|
|
protocol_.reserve(distance(url_s.begin(), prot_i));
|
|
transform(url_s.begin(), prot_i,
|
|
back_inserter(protocol_),
|
|
std::ptr_fun<int,int>(tolower)); // protocol is icase
|
|
if( prot_i == url_s.end() )
|
|
return;
|
|
advance(prot_i, prot_end.length());
|
|
std::string::const_iterator path_i = find(prot_i, url_s.end(), '/');
|
|
host_.reserve(distance(prot_i, path_i));
|
|
transform(prot_i, path_i,
|
|
back_inserter(host_),
|
|
std::ptr_fun<int,int>(tolower)); // host is icase
|
|
|
|
// parse user/password
|
|
auto user_pass_i = find(host_.begin(), host_.end(), '@');
|
|
if (user_pass_i != host_.end())
|
|
{
|
|
std::string user_pass = std::string(host_.begin(), user_pass_i);
|
|
auto pass_i = find(user_pass.begin(), user_pass.end(), ':');
|
|
if (pass_i != user_pass.end())
|
|
{
|
|
user_ = std::string(user_pass.begin(), pass_i);
|
|
pass_ = std::string(pass_i + 1, user_pass.end());
|
|
}
|
|
else
|
|
user_ = user_pass;
|
|
|
|
host_.assign(user_pass_i + 1, host_.end());
|
|
}
|
|
|
|
// parse port
|
|
auto port_i = find(host_.begin(), host_.end(), ':');
|
|
if (port_i != host_.end())
|
|
{
|
|
portstr_ = std::string(port_i + 1, host_.end());
|
|
host_.assign(host_.begin(), port_i);
|
|
try{
|
|
port_ = boost::lexical_cast<decltype(port_)>(portstr_);
|
|
}
|
|
catch (std::exception e) {
|
|
port_ = 80;
|
|
}
|
|
}
|
|
|
|
std::string::const_iterator query_i = find(path_i, url_s.end(), '?');
|
|
path_.assign(path_i, query_i);
|
|
if( query_i != url_s.end() )
|
|
++query_i;
|
|
query_.assign(query_i, url_s.end());
|
|
}
|
|
|
|
std::string urlDecode(const std::string& data)
|
|
{
|
|
std::string res(data);
|
|
for (size_t pos = res.find('%'); pos != std::string::npos; pos = res.find('%',pos+1))
|
|
{
|
|
char c = strtol(res.substr(pos+1,2).c_str(), NULL, 16);
|
|
res.replace(pos,3,1,c);
|
|
}
|
|
return res;
|
|
}
|
|
}
|
|
|
|
namespace net
|
|
{
|
|
int GetMTU (const boost::asio::ip::address& localAddress)
|
|
{
|
|
#if defined(__linux__) || defined(__FreeBSD_kernel__) || defined(__APPLE__) || defined(__OpenBSD__)
|
|
ifaddrs * ifaddr, * ifa = nullptr;
|
|
if (getifaddrs(&ifaddr) == -1)
|
|
{
|
|
LogPrint (eLogError, "Can't excute getifaddrs");
|
|
return 0;
|
|
}
|
|
int family = 0;
|
|
// loook for interface matching local address
|
|
for (ifa = ifaddr; ifa != nullptr; ifa = ifa->ifa_next)
|
|
{
|
|
if (!ifa->ifa_addr) continue;
|
|
family = ifa->ifa_addr->sa_family;
|
|
if (family == AF_INET && localAddress.is_v4 ())
|
|
{
|
|
sockaddr_in * sa = (sockaddr_in *)ifa->ifa_addr;
|
|
if (!memcmp (&sa->sin_addr, localAddress.to_v4 ().to_bytes ().data (), 4))
|
|
break; // address matches
|
|
}
|
|
else if (family == AF_INET6 && localAddress.is_v6 ())
|
|
{
|
|
sockaddr_in6 * sa = (sockaddr_in6 *)ifa->ifa_addr;
|
|
if (!memcmp (&sa->sin6_addr, localAddress.to_v6 ().to_bytes ().data (), 16))
|
|
break; // address matches
|
|
}
|
|
}
|
|
int mtu = 0;
|
|
if (ifa && family) // interface found?
|
|
{
|
|
int fd = socket (family, SOCK_DGRAM, 0);
|
|
if (fd > 0)
|
|
{
|
|
ifreq ifr;
|
|
strncpy (ifr.ifr_name, ifa->ifa_name, IFNAMSIZ); // set interface for query
|
|
if (ioctl (fd, SIOCGIFMTU, &ifr) >= 0)
|
|
mtu = ifr.ifr_mtu; // MTU
|
|
else
|
|
LogPrint (eLogError, "Failed to run ioctl");
|
|
close (fd);
|
|
}
|
|
else
|
|
LogPrint (eLogError, "Failed to create datagram socket");
|
|
}
|
|
else
|
|
LogPrint (eLogWarning, "Interface for local address", localAddress.to_string (), " not found");
|
|
|
|
freeifaddrs (ifaddr);
|
|
return mtu;
|
|
#elif defined(WIN32)
|
|
|
|
int result = 576; // fallback MTU
|
|
|
|
DWORD dwRetVal = 0;
|
|
ULONG outBufLen = 0;
|
|
PIP_ADAPTER_ADDRESSES pAddresses = nullptr;
|
|
PIP_ADAPTER_ADDRESSES pCurrAddresses = nullptr;
|
|
PIP_ADAPTER_UNICAST_ADDRESS pUnicast = nullptr;
|
|
|
|
#ifdef UNICODE
|
|
string localAddress_temporary = localAddress.to_string();
|
|
wstring localAddressUniversal (localAddress_temporary.begin(), localAddress_temporary.end());
|
|
#else
|
|
std::string localAddressUniversal = localAddress.to_string();
|
|
#endif
|
|
|
|
if (localAddress.is_v4())
|
|
{
|
|
struct sockaddr_in inputAddress;
|
|
inet_pton(AF_INET, localAddressUniversal.c_str(), &(inputAddress.sin_addr));
|
|
|
|
if (GetAdaptersAddresses (AF_INET, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen)
|
|
== ERROR_BUFFER_OVERFLOW)
|
|
{
|
|
FREE (pAddresses);
|
|
pAddresses = (IP_ADAPTER_ADDRESSES *)MALLOC (outBufLen);
|
|
}
|
|
|
|
dwRetVal = GetAdaptersAddresses (AF_INET, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen);
|
|
if (dwRetVal == NO_ERROR)
|
|
{
|
|
pCurrAddresses = pAddresses;
|
|
while (pCurrAddresses)
|
|
{
|
|
PIP_ADAPTER_UNICAST_ADDRESS firstUnicastAddress = pCurrAddresses->FirstUnicastAddress;
|
|
|
|
pUnicast = pCurrAddresses->FirstUnicastAddress;
|
|
if (pUnicast != nullptr)
|
|
{
|
|
for (int i = 0; pUnicast != nullptr; ++i)
|
|
{
|
|
LPSOCKADDR lpAddr = pUnicast->Address.lpSockaddr;
|
|
struct sockaddr_in *localInterfaceAddress = (struct sockaddr_in*) lpAddr;
|
|
if (localInterfaceAddress->sin_addr.S_un.S_addr == inputAddress.sin_addr.S_un.S_addr)
|
|
{
|
|
result = pAddresses->Mtu;
|
|
FREE (pAddresses);
|
|
pAddresses = nullptr;
|
|
return result;
|
|
}
|
|
pUnicast = pUnicast->Next;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
LogPrint (eLogError, "GetMTU() has failed: not a unicast ipv4 address, this is not supported");
|
|
}
|
|
|
|
pCurrAddresses = pCurrAddresses->Next;
|
|
}
|
|
|
|
}
|
|
else
|
|
{
|
|
LogPrint (eLogError, "GetMTU() has failed: enclosed GetAdaptersAddresses() call has failed");
|
|
}
|
|
|
|
}
|
|
else if (localAddress.is_v6())
|
|
{
|
|
struct sockaddr_in6 inputAddress;
|
|
inet_pton(AF_INET6, localAddressUniversal.c_str(), &(inputAddress.sin6_addr));
|
|
|
|
if (GetAdaptersAddresses(AF_INET6, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen)
|
|
== ERROR_BUFFER_OVERFLOW)
|
|
{
|
|
FREE (pAddresses);
|
|
pAddresses = (IP_ADAPTER_ADDRESSES *)MALLOC (outBufLen);
|
|
}
|
|
|
|
dwRetVal = GetAdaptersAddresses (AF_INET6, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen);
|
|
if (dwRetVal == NO_ERROR)
|
|
{
|
|
bool found_address = false;
|
|
pCurrAddresses = pAddresses;
|
|
while (pCurrAddresses)
|
|
{
|
|
PIP_ADAPTER_UNICAST_ADDRESS firstUnicastAddress = pCurrAddresses->FirstUnicastAddress;
|
|
|
|
pUnicast = pCurrAddresses->FirstUnicastAddress;
|
|
if (pUnicast != nullptr)
|
|
{
|
|
for (int i = 0; pUnicast != nullptr; ++i)
|
|
{
|
|
LPSOCKADDR lpAddr = pUnicast->Address.lpSockaddr;
|
|
struct sockaddr_in6 *localInterfaceAddress = (struct sockaddr_in6*) lpAddr;
|
|
|
|
for (int j = 0; j != 8; ++j)
|
|
{
|
|
if (localInterfaceAddress->sin6_addr.u.Word[j] != inputAddress.sin6_addr.u.Word[j])
|
|
{
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
found_address = true;
|
|
}
|
|
}
|
|
if (found_address)
|
|
{
|
|
result = pAddresses->Mtu;
|
|
FREE (pAddresses);
|
|
pAddresses = nullptr;
|
|
return result;
|
|
}
|
|
pUnicast = pUnicast->Next;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
LogPrint (eLogError, "GetMTU() has failed: not a unicast ipv6 address, this is not supported");
|
|
}
|
|
|
|
pCurrAddresses = pCurrAddresses->Next;
|
|
}
|
|
|
|
}
|
|
else
|
|
{
|
|
LogPrint (eLogError, "GetMTU() has failed: enclosed GetAdaptersAddresses() call has failed");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
LogPrint (eLogError, "GetMTU() has failed: address family is not supported");
|
|
}
|
|
|
|
FREE (pAddresses);
|
|
pAddresses = nullptr;
|
|
LogPrint(eLogError, "GetMTU() error: control flow should never reach this line");
|
|
return result;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
} // util
|
|
} // i2p
|