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IPv6 cleanups.

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This commit is contained in:
Jonathan Naylor 2020-09-06 13:59:52 +01:00
parent 59dd67a952
commit 27501ccdb3
16 changed files with 608 additions and 307 deletions
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6
P25Gateway/Makefile
View File

@ -1,6 +1,6 @@
CC = gcc CC = cc
CXX = g++ CXX = c++
CFLAGS = -g -O3 -Wall -std=c++0x -pthread CFLAGS = -g -O3 -Wall -DHAVE_LOG_H -std=c++0x -pthread
LIBS = -lpthread LIBS = -lpthread
LDFLAGS = -g LDFLAGS = -g

5
P25Gateway/P25Gateway.cpp
View File

@ -169,7 +169,10 @@ void CP25Gateway::run()
sockaddr_storage rptAddr; sockaddr_storage rptAddr;
unsigned int rptAddrLen; unsigned int rptAddrLen;
CUDPSocket::lookup(m_conf.getRptAddress(), m_conf.getRptPort(), rptAddr, rptAddrLen); if (CUDPSocket::lookup(m_conf.getRptAddress(), m_conf.getRptPort(), rptAddr, rptAddrLen) != 0) {
LogError("Unable to resolve the address of the host");
return;
}
CUDPSocket* remoteSocket = NULL; CUDPSocket* remoteSocket = NULL;
if (m_conf.getRemoteCommandsEnabled()) { if (m_conf.getRemoteCommandsEnabled()) {

36
P25Gateway/Reflectors.cpp
View File

@ -83,10 +83,17 @@ bool CReflectors::load()
std::string host = std::string(p2); std::string host = std::string(p2);
unsigned int port = (unsigned int)::atoi(p3); unsigned int port = (unsigned int)::atoi(p3);
sockaddr_storage addr;
unsigned int addrLen;
if (CUDPSocket::lookup(host, port, addr, addrLen) == 0) {
CP25Reflector* refl = new CP25Reflector; CP25Reflector* refl = new CP25Reflector;
refl->m_id = (unsigned int)::atoi(p1); refl->m_id = (unsigned int)::atoi(p1);
CUDPSocket::lookup(host, port, refl->m_addr, refl->m_addrLen); refl->m_addr = addr;
refl->m_addrLen = addrLen;
m_reflectors.push_back(refl); m_reflectors.push_back(refl);
} else {
LogWarning("Unable to resolve the address of %s", host.c_str());
}
} }
} }
@ -111,10 +118,17 @@ bool CReflectors::load()
std::string host = std::string(p2); std::string host = std::string(p2);
unsigned int port = (unsigned int)::atoi(p3); unsigned int port = (unsigned int)::atoi(p3);
sockaddr_storage addr;
unsigned int addrLen;
if (CUDPSocket::lookup(host, port, addr, addrLen) == 0) {
CP25Reflector* refl = new CP25Reflector; CP25Reflector* refl = new CP25Reflector;
refl->m_id = id; refl->m_id = id;
CUDPSocket::lookup(host, port, refl->m_addr, refl->m_addrLen); refl->m_addr = addr;
refl->m_addrLen = addrLen;
m_reflectors.push_back(refl); m_reflectors.push_back(refl);
} else {
LogWarning("Unable to resolve the address of %s", host.c_str());
}
} }
} }
} }
@ -127,20 +141,34 @@ bool CReflectors::load()
// Add the Parrot entry // Add the Parrot entry
if (m_parrotPort > 0U) { if (m_parrotPort > 0U) {
sockaddr_storage addr;
unsigned int addrLen;
if (CUDPSocket::lookup(m_parrotAddress, m_parrotPort, addr, addrLen) == 0) {
CP25Reflector* refl = new CP25Reflector; CP25Reflector* refl = new CP25Reflector;
refl->m_id = 10U; refl->m_id = 10U;
CUDPSocket::lookup(m_parrotAddress, m_parrotPort, refl->m_addr, refl->m_addrLen); refl->m_addr = addr;
refl->m_addrLen = addrLen;
m_reflectors.push_back(refl); m_reflectors.push_back(refl);
LogInfo("Loaded P25 parrot (TG%u)", refl->m_id); LogInfo("Loaded P25 parrot (TG%u)", refl->m_id);
} else {
LogWarning("Unable to resolve the address of the Parrot");
}
} }
// Add the P252DMR entry // Add the P252DMR entry
if (m_p252dmrPort > 0U) { if (m_p252dmrPort > 0U) {
sockaddr_storage addr;
unsigned int addrLen;
if (CUDPSocket::lookup(m_p252dmrAddress, m_p252dmrPort, addr, addrLen) == 0) {
CP25Reflector* refl = new CP25Reflector; CP25Reflector* refl = new CP25Reflector;
refl->m_id = 20U; refl->m_id = 20U;
CUDPSocket::lookup(m_p252dmrAddress, m_p252dmrPort, refl->m_addr, refl->m_addrLen); refl->m_addr = addr;
refl->m_addrLen = addrLen;
m_reflectors.push_back(refl); m_reflectors.push_back(refl);
LogInfo("Loaded P252DMR (TG%u)", refl->m_id); LogInfo("Loaded P252DMR (TG%u)", refl->m_id);
} else {
LogWarning("Unable to resolve the address of P252DMR");
}
} }
size = m_reflectors.size(); size = m_reflectors.size();

190
P25Gateway/UDPSocket.cpp
View File

@ -17,7 +17,6 @@
*/ */
#include "UDPSocket.h" #include "UDPSocket.h"
#include "Log.h"
#include <cassert> #include <cassert>
@ -26,26 +25,36 @@
#include <cstring> #include <cstring>
#endif #endif
#if defined(HAVE_LOG_H)
#include "Log.h"
#else
#define LogError(fmt, ...) ::fprintf(stderr, fmt "\n", ## __VA_ARGS__)
#define LogInfo(fmt, ...) ::fprintf(stderr, fmt "\n", ## __VA_ARGS__)
#endif
CUDPSocket::CUDPSocket(const std::string& address, unsigned int port) : CUDPSocket::CUDPSocket(const std::string& address, unsigned int port) :
m_address(address), m_address_save(address),
m_port(port), m_port_save(port),
m_fd(-1) m_counter(0U)
{ {
assert(!address.empty());
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
WSAData data; WSAData data;
int wsaRet = ::WSAStartup(MAKEWORD(2, 2), &data); int wsaRet = ::WSAStartup(MAKEWORD(2, 2), &data);
if (wsaRet != 0) if (wsaRet != 0)
LogError("Error from WSAStartup"); LogError("Error from WSAStartup");
#endif #endif
for (int i = 0; i < UDP_SOCKET_MAX; i++) {
m_address[i] = "";
m_port[i] = 0U;
m_af[i] = 0U;
m_fd[i] = -1;
}
} }
CUDPSocket::CUDPSocket(unsigned int port) : CUDPSocket::CUDPSocket(unsigned int port) :
m_address(), m_address_save(),
m_port(port), m_port_save(port),
m_fd(-1) m_counter(0U)
{ {
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
WSAData data; WSAData data;
@ -53,6 +62,12 @@ m_fd(-1)
if (wsaRet != 0) if (wsaRet != 0)
LogError("Error from WSAStartup"); LogError("Error from WSAStartup");
#endif #endif
for (int i = 0; i < UDP_SOCKET_MAX; i++) {
m_address[i] = "";
m_port[i] = 0U;
m_af[i] = 0U;
m_fd[i] = -1;
}
} }
CUDPSocket::~CUDPSocket() CUDPSocket::~CUDPSocket()
@ -96,40 +111,64 @@ int CUDPSocket::lookup(const std::string& hostname, unsigned int port, sockaddr_
return 0; return 0;
} }
bool CUDPSocket::match(const sockaddr_storage& addr1, const sockaddr_storage& addr2) bool CUDPSocket::match(const sockaddr_storage& addr1, const sockaddr_storage& addr2, IPMATCHTYPE type)
{ {
if (addr1.ss_family != addr2.ss_family) if (addr1.ss_family != addr2.ss_family)
return false; return false;
if (type == IMT_ADDRESS_AND_PORT) {
switch (addr1.ss_family) { switch (addr1.ss_family) {
case AF_INET: case AF_INET:
struct sockaddr_in *in_1, *in_2; struct sockaddr_in *in_1, *in_2;
in_1 = (struct sockaddr_in*)&addr1; in_1 = (struct sockaddr_in*)&addr1;
in_2 = (struct sockaddr_in*)&addr2; in_2 = (struct sockaddr_in*)&addr2;
return ((in_1->sin_addr.s_addr == in_2->sin_addr.s_addr) && (in_1->sin_port == in_2->sin_port)); return (in_1->sin_addr.s_addr == in_2->sin_addr.s_addr) && (in_1->sin_port == in_2->sin_port);
case AF_INET6: case AF_INET6:
struct sockaddr_in6 *in6_1, *in6_2; struct sockaddr_in6 *in6_1, *in6_2;
in6_1 = (struct sockaddr_in6*)&addr1; in6_1 = (struct sockaddr_in6*)&addr1;
in6_2 = (struct sockaddr_in6*)&addr2; in6_2 = (struct sockaddr_in6*)&addr2;
return (IN6_ARE_ADDR_EQUAL(&in6_1->sin6_addr, &in6_2->sin6_addr) && (in6_1->sin6_port == in6_2->sin6_port)); return IN6_ARE_ADDR_EQUAL(&in6_1->sin6_addr, &in6_2->sin6_addr) && (in6_1->sin6_port == in6_2->sin6_port);
default: default:
return false; return false;
} }
} else if (type == IMT_ADDRESS_ONLY) {
switch (addr1.ss_family) {
case AF_INET:
struct sockaddr_in *in_1, *in_2;
in_1 = (struct sockaddr_in*)&addr1;
in_2 = (struct sockaddr_in*)&addr2;
return in_1->sin_addr.s_addr == in_2->sin_addr.s_addr;
case AF_INET6:
struct sockaddr_in6 *in6_1, *in6_2;
in6_1 = (struct sockaddr_in6*)&addr1;
in6_2 = (struct sockaddr_in6*)&addr2;
return IN6_ARE_ADDR_EQUAL(&in6_1->sin6_addr, &in6_2->sin6_addr);
default:
return false;
}
} else {
return false;
}
} }
bool CUDPSocket::isnone(const sockaddr_storage& addr) bool CUDPSocket::isNone(const sockaddr_storage& addr)
{ {
struct sockaddr_in *in = (struct sockaddr_in *)&addr; struct sockaddr_in *in = (struct sockaddr_in *)&addr;
return ((addr.ss_family == AF_INET) && (in->sin_addr.s_addr == htonl(INADDR_NONE))); return ((addr.ss_family == AF_INET) && (in->sin_addr.s_addr == htonl(INADDR_NONE)));
} }
bool CUDPSocket::open() bool CUDPSocket::open(const sockaddr_storage& address)
{ {
return open(AF_UNSPEC); return open(address.ss_family);
} }
bool CUDPSocket::open(const unsigned int af) bool CUDPSocket::open(unsigned int af)
{
return open(0, af, m_address_save, m_port_save);
}
bool CUDPSocket::open(const unsigned int index, const unsigned int af, const std::string& address, const unsigned int port)
{ {
sockaddr_storage addr; sockaddr_storage addr;
unsigned int addrlen; unsigned int addrlen;
@ -140,14 +179,14 @@ bool CUDPSocket::open(const unsigned int af)
hints.ai_family = af; hints.ai_family = af;
/* to determine protocol family, call lookup() first. */ /* to determine protocol family, call lookup() first. */
int err = lookup(m_address, m_port, addr, addrlen, hints); int err = lookup(address, port, addr, addrlen, hints);
if (err != 0) { if (err != 0) {
LogError("The local address is invalid - %s", m_address.c_str()); LogError("The local address is invalid - %s", address.c_str());
return false; return false;
} }
m_fd = ::socket(addr.ss_family, SOCK_DGRAM, 0); int fd = ::socket(addr.ss_family, SOCK_DGRAM, 0);
if (m_fd < 0) { if (fd < 0) {
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
LogError("Cannot create the UDP socket, err: %lu", ::GetLastError()); LogError("Cannot create the UDP socket, err: %lu", ::GetLastError());
#else #else
@ -156,9 +195,14 @@ bool CUDPSocket::open(const unsigned int af)
return false; return false;
} }
if (m_port > 0U) { m_address[index] = address;
m_port[index] = port;
m_af[index] = addr.ss_family;
m_fd[index] = fd;
if (port > 0U) {
int reuse = 1; int reuse = 1;
if (::setsockopt(m_fd, SOL_SOCKET, SO_REUSEADDR, (char *)&reuse, sizeof(reuse)) == -1) { if (::setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *)&reuse, sizeof(reuse)) == -1) {
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
LogError("Cannot set the UDP socket option, err: %lu", ::GetLastError()); LogError("Cannot set the UDP socket option, err: %lu", ::GetLastError());
#else #else
@ -167,7 +211,7 @@ bool CUDPSocket::open(const unsigned int af)
return false; return false;
} }
if (::bind(m_fd, (sockaddr*)&addr, addrlen) == -1) { if (::bind(fd, (sockaddr*)&addr, addrlen) == -1) {
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
LogError("Cannot bind the UDP address, err: %lu", ::GetLastError()); LogError("Cannot bind the UDP address, err: %lu", ::GetLastError());
#else #else
@ -176,7 +220,7 @@ bool CUDPSocket::open(const unsigned int af)
return false; return false;
} }
LogInfo("Opening UDP port on %u", m_port); LogInfo("Opening UDP port on %u", port);
} }
return true; return true;
@ -188,30 +232,43 @@ int CUDPSocket::read(unsigned char* buffer, unsigned int length, sockaddr_storag
assert(length > 0U); assert(length > 0U);
// Check that the readfrom() won't block // Check that the readfrom() won't block
fd_set readFds; int i, n;
FD_ZERO(&readFds); struct pollfd pfd[UDP_SOCKET_MAX];
#if defined(_WIN32) || defined(_WIN64) for (i = n = 0; i < UDP_SOCKET_MAX; i++) {
FD_SET((unsigned int)m_fd, &readFds); if (m_fd[i] >= 0) {
#else pfd[n].fd = m_fd[i];
FD_SET(m_fd, &readFds); pfd[n].events = POLLIN;
#endif n++;
}
}
// no socket descriptor to receive
if (n == 0)
return 0;
// Return immediately // Return immediately
timeval tv; #if defined(_WIN32) || defined(_WIN64)
tv.tv_sec = 0L; int ret = WSAPoll(pfd, n, 0);
tv.tv_usec = 0L; #else
int ret = ::poll(pfd, n, 0);
int ret = ::select(m_fd + 1, &readFds, NULL, NULL, &tv); #endif
if (ret < 0) { if (ret < 0) {
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
LogError("Error returned from UDP select, err: %lu", ::GetLastError()); LogError("Error returned from UDP poll, err: %lu", ::GetLastError());
#else #else
LogError("Error returned from UDP select, err: %d", errno); LogError("Error returned from UDP poll, err: %d", errno);
#endif #endif
return -1; return -1;
} }
if (ret == 0) int index;
for (i = 0; i < n; i++) {
// round robin
index = (i + m_counter) % n;
if (pfd[index].revents & POLLIN)
break;
}
if (i == n)
return 0; return 0;
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
@ -221,9 +278,9 @@ int CUDPSocket::read(unsigned char* buffer, unsigned int length, sockaddr_storag
#endif #endif
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
int len = ::recvfrom(m_fd, (char*)buffer, length, 0, (sockaddr *)&address, &size); int len = ::recvfrom(pfd[index].fd, (char*)buffer, length, 0, (sockaddr *)&address, &size);
#else #else
ssize_t len = ::recvfrom(m_fd, (char*)buffer, length, 0, (sockaddr *)&address, &size); ssize_t len = ::recvfrom(pfd[index].fd, (char*)buffer, length, 0, (sockaddr *)&address, &size);
#endif #endif
if (len <= 0) { if (len <= 0) {
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
@ -234,6 +291,7 @@ int CUDPSocket::read(unsigned char* buffer, unsigned int length, sockaddr_storag
return -1; return -1;
} }
m_counter++;
address_length = size; address_length = size;
return len; return len;
} }
@ -243,36 +301,52 @@ bool CUDPSocket::write(const unsigned char* buffer, unsigned int length, const s
assert(buffer != NULL); assert(buffer != NULL);
assert(length > 0U); assert(length > 0U);
bool result = false;
for (int i = 0; i < UDP_SOCKET_MAX; i++) {
if (m_fd[i] < 0 || m_af[i] != address.ss_family)
continue;
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
int ret = ::sendto(m_fd, (char *)buffer, length, 0, (sockaddr *)&address, address_length); int ret = ::sendto(m_fd[i], (char *)buffer, length, 0, (sockaddr *)&address, address_length);
#else #else
ssize_t ret = ::sendto(m_fd, (char *)buffer, length, 0, (sockaddr *)&address, address_length); ssize_t ret = ::sendto(m_fd[i], (char *)buffer, length, 0, (sockaddr *)&address, address_length);
#endif #endif
if (ret < 0) { if (ret < 0) {
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
LogError("Error returned from sendto, err: %lu", ::GetLastError()); LogError("Error returned from sendto, err: %lu", ::GetLastError());
#else #else
LogError("Error returned from sendto, err: %d", errno); LogError("Error returned from sendto, err: %d", errno);
#endif #endif
return false; } else {
#if defined(_WIN32) || defined(_WIN64)
if (ret == int(length))
result = true;
#else
if (ret == ssize_t(length))
result = true;
#endif
}
} }
#if defined(_WIN32) || defined(_WIN64) return result;
if (ret != int(length))
return false;
#else
if (ret != ssize_t(length))
return false;
#endif
return true;
} }
void CUDPSocket::close() void CUDPSocket::close()
{ {
#if defined(_WIN32) || defined(_WIN64) for (int i = 0; i < UDP_SOCKET_MAX; i++)
::closesocket(m_fd); close(m_fd[i]);
#else }
::close(m_fd);
#endif void CUDPSocket::close(const unsigned int index)
{
if (m_fd[index] >= 0) {
#if defined(_WIN32) || defined(_WIN64)
::closesocket(m_fd[index]);
#else
::close(m_fd[index]);
#endif
m_fd[index] = -1;
}
} }

31
P25Gateway/UDPSocket.h
View File

@ -26,6 +26,7 @@
#include <sys/time.h> #include <sys/time.h>
#include <sys/types.h> #include <sys/types.h>
#include <sys/socket.h> #include <sys/socket.h>
#include <poll.h>
#include <unistd.h> #include <unistd.h>
#include <netinet/in.h> #include <netinet/in.h>
#include <arpa/inet.h> #include <arpa/inet.h>
@ -35,29 +36,45 @@
#include <ws2tcpip.h> #include <ws2tcpip.h>
#endif #endif
#if !defined(UDP_SOCKET_MAX)
#define UDP_SOCKET_MAX 1
#endif
enum IPMATCHTYPE {
IMT_ADDRESS_AND_PORT,
IMT_ADDRESS_ONLY
};
class CUDPSocket { class CUDPSocket {
public: public:
CUDPSocket(const std::string& address, unsigned int port = 0U); CUDPSocket(const std::string& address, unsigned int port = 0U);
CUDPSocket(unsigned int port = 0U); CUDPSocket(unsigned int port = 0U);
~CUDPSocket(); ~CUDPSocket();
bool open(); bool open(unsigned int af = AF_UNSPEC);
bool open(const unsigned int af); bool open(const sockaddr_storage& address);
bool open(const unsigned int index, const unsigned int af, const std::string& address, const unsigned int port);
int read(unsigned char* buffer, unsigned int length, sockaddr_storage& address, unsigned int &address_length); int read(unsigned char* buffer, unsigned int length, sockaddr_storage& address, unsigned int &address_length);
bool write(const unsigned char* buffer, unsigned int length, const sockaddr_storage& address, unsigned int address_length); bool write(const unsigned char* buffer, unsigned int length, const sockaddr_storage& address, unsigned int address_length);
void close(); void close();
void close(const unsigned int index);
static int lookup(const std::string& hostName, unsigned int port, sockaddr_storage& address, unsigned int& address_length); static int lookup(const std::string& hostName, unsigned int port, sockaddr_storage& address, unsigned int& address_length);
static int lookup(const std::string& hostName, unsigned int port, sockaddr_storage& address, unsigned int& address_length, struct addrinfo& hints); static int lookup(const std::string& hostName, unsigned int port, sockaddr_storage& address, unsigned int& address_length, struct addrinfo& hints);
static bool match(const sockaddr_storage& addr1, const sockaddr_storage& addr2); static bool match(const sockaddr_storage& addr1, const sockaddr_storage& addr2, IPMATCHTYPE type = IMT_ADDRESS_AND_PORT);
static bool isnone(const sockaddr_storage& addr);
static bool isNone(const sockaddr_storage& addr);
private: private:
std::string m_address; std::string m_address_save;
unsigned short m_port; unsigned short m_port_save;
int m_fd; std::string m_address[UDP_SOCKET_MAX];
unsigned short m_port[UDP_SOCKET_MAX];
unsigned int m_af[UDP_SOCKET_MAX];
int m_fd[UDP_SOCKET_MAX];
unsigned int m_counter;
}; };
#endif #endif

2
P25Gateway/Version.h
View File

@ -19,6 +19,6 @@
#if !defined(VERSION_H) #if !defined(VERSION_H)
#define VERSION_H #define VERSION_H
const char* VERSION = "20200903"; const char* VERSION = "20200906";
#endif #endif

4
P25Parrot/Makefile
View File

@ -1,5 +1,5 @@
CC = gcc CC = cc
CXX = g++ CXX = c++
CFLAGS = -g -O3 -Wall -std=c++0x -pthread CFLAGS = -g -O3 -Wall -std=c++0x -pthread
LIBS = -lpthread LIBS = -lpthread
LDFLAGS = -g LDFLAGS = -g

233
P25Parrot/UDPSocket.cpp
View File

@ -1,5 +1,5 @@
/* /*
* Copyright (C) 2006-2016 by Jonathan Naylor G4KLX * Copyright (C) 2006-2016,2020 by Jonathan Naylor G4KLX
* *
* This program is free software; you can redistribute it and/or modify * 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 * it under the terms of the GNU General Public License as published by
@ -25,33 +25,49 @@
#include <cstring> #include <cstring>
#endif #endif
#if defined(HAVE_LOG_H)
#include "Log.h"
#else
#define LogError(fmt, ...) ::fprintf(stderr, fmt "\n", ## __VA_ARGS__)
#define LogInfo(fmt, ...) ::fprintf(stderr, fmt "\n", ## __VA_ARGS__)
#endif
CUDPSocket::CUDPSocket(const std::string& address, unsigned int port) : CUDPSocket::CUDPSocket(const std::string& address, unsigned int port) :
m_address(address), m_address_save(address),
m_port(port), m_port_save(port),
m_fd(-1) m_counter(0U)
{ {
assert(!address.empty());
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
WSAData data; WSAData data;
int wsaRet = ::WSAStartup(MAKEWORD(2, 2), &data); int wsaRet = ::WSAStartup(MAKEWORD(2, 2), &data);
if (wsaRet != 0) if (wsaRet != 0)
::fprintf(stderr, "Error from WSAStartup\n"); LogError("Error from WSAStartup");
#endif #endif
for (int i = 0; i < UDP_SOCKET_MAX; i++) {
m_address[i] = "";
m_port[i] = 0U;
m_af[i] = 0U;
m_fd[i] = -1;
}
} }
CUDPSocket::CUDPSocket(unsigned int port) : CUDPSocket::CUDPSocket(unsigned int port) :
m_address(), m_address_save(),
m_port(port), m_port_save(port),
m_fd(-1) m_counter(0U)
{ {
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
WSAData data; WSAData data;
int wsaRet = ::WSAStartup(MAKEWORD(2, 2), &data); int wsaRet = ::WSAStartup(MAKEWORD(2, 2), &data);
if (wsaRet != 0) if (wsaRet != 0)
::fprintf(stderr, "Error from WSAStartup\n"); LogError("Error from WSAStartup");
#endif #endif
for (int i = 0; i < UDP_SOCKET_MAX; i++) {
m_address[i] = "";
m_port[i] = 0U;
m_af[i] = 0U;
m_fd[i] = -1;
}
} }
CUDPSocket::~CUDPSocket() CUDPSocket::~CUDPSocket()
@ -71,69 +87,89 @@ int CUDPSocket::lookup(const std::string& hostname, unsigned int port, sockaddr_
int CUDPSocket::lookup(const std::string& hostname, unsigned int port, sockaddr_storage& addr, unsigned int& address_length, struct addrinfo& hints) int CUDPSocket::lookup(const std::string& hostname, unsigned int port, sockaddr_storage& addr, unsigned int& address_length, struct addrinfo& hints)
{ {
int err;
std::string portstr = std::to_string(port); std::string portstr = std::to_string(port);
struct addrinfo *res; struct addrinfo *res;
/* port is always digits, no needs to lookup service */ /* port is always digits, no needs to lookup service */
hints.ai_flags |= AI_NUMERICSERV; hints.ai_flags |= AI_NUMERICSERV;
err = getaddrinfo(hostname.empty() ? NULL : hostname.c_str(), portstr.c_str(), &hints, &res); int err = getaddrinfo(hostname.empty() ? NULL : hostname.c_str(), portstr.c_str(), &hints, &res);
if (err) { if (err != 0) {
sockaddr_in* paddr = (sockaddr_in*)&addr; sockaddr_in* paddr = (sockaddr_in*)&addr;
::memset(paddr, 0, address_length = sizeof(sockaddr_in)); ::memset(paddr, 0x00U, address_length = sizeof(sockaddr_in));
paddr->sin_family = AF_INET; paddr->sin_family = AF_INET;
paddr->sin_port = htons(port); paddr->sin_port = htons(port);
paddr->sin_addr.s_addr = htonl(INADDR_NONE); paddr->sin_addr.s_addr = htonl(INADDR_NONE);
::fprintf(stderr, "Cannot find address for host %s\n", hostname.c_str()); LogError("Cannot find address for host %s", hostname.c_str());
return err; return err;
} }
::memcpy(&addr, res->ai_addr, address_length = res->ai_addrlen); ::memcpy(&addr, res->ai_addr, address_length = res->ai_addrlen);
freeaddrinfo(res); freeaddrinfo(res);
return 0; return 0;
} }
bool CUDPSocket::match(const sockaddr_storage &addr1, const sockaddr_storage &addr2) bool CUDPSocket::match(const sockaddr_storage& addr1, const sockaddr_storage& addr2, IPMATCHTYPE type)
{ {
if (addr1.ss_family != addr2.ss_family) if (addr1.ss_family != addr2.ss_family)
return false; return false;
if (type == IMT_ADDRESS_AND_PORT) {
switch (addr1.ss_family) { switch (addr1.ss_family) {
case AF_INET: case AF_INET:
struct sockaddr_in *in_1, *in_2; struct sockaddr_in *in_1, *in_2;
in_1 = (struct sockaddr_in*)&addr1; in_1 = (struct sockaddr_in*)&addr1;
in_2 = (struct sockaddr_in*)&addr2; in_2 = (struct sockaddr_in*)&addr2;
return ( (in_1->sin_addr.s_addr == in_2->sin_addr.s_addr) && return (in_1->sin_addr.s_addr == in_2->sin_addr.s_addr) && (in_1->sin_port == in_2->sin_port);
(in_1->sin_port == in_2->sin_port) );
case AF_INET6: case AF_INET6:
struct sockaddr_in6 *in6_1, *in6_2; struct sockaddr_in6 *in6_1, *in6_2;
in6_1 = (struct sockaddr_in6*)&addr1; in6_1 = (struct sockaddr_in6*)&addr1;
in6_2 = (struct sockaddr_in6*)&addr2; in6_2 = (struct sockaddr_in6*)&addr2;
return ( IN6_ARE_ADDR_EQUAL(&in6_1->sin6_addr, &in6_2->sin6_addr) && return IN6_ARE_ADDR_EQUAL(&in6_1->sin6_addr, &in6_2->sin6_addr) && (in6_1->sin6_port == in6_2->sin6_port);
(in6_1->sin6_port == in6_2->sin6_port) );
default: default:
return false; return false;
} }
} else if (type == IMT_ADDRESS_ONLY) {
switch (addr1.ss_family) {
case AF_INET:
struct sockaddr_in *in_1, *in_2;
in_1 = (struct sockaddr_in*)&addr1;
in_2 = (struct sockaddr_in*)&addr2;
return in_1->sin_addr.s_addr == in_2->sin_addr.s_addr;
case AF_INET6:
struct sockaddr_in6 *in6_1, *in6_2;
in6_1 = (struct sockaddr_in6*)&addr1;
in6_2 = (struct sockaddr_in6*)&addr2;
return IN6_ARE_ADDR_EQUAL(&in6_1->sin6_addr, &in6_2->sin6_addr);
default:
return false;
}
} else {
return false;
}
} }
bool CUDPSocket::isnone(const sockaddr_storage &addr) bool CUDPSocket::isNone(const sockaddr_storage& addr)
{ {
struct sockaddr_in *in = (struct sockaddr_in *)&addr; struct sockaddr_in *in = (struct sockaddr_in *)&addr;
return ( (addr.ss_family == AF_INET) && return ((addr.ss_family == AF_INET) && (in->sin_addr.s_addr == htonl(INADDR_NONE)));
(in->sin_addr.s_addr == htonl(INADDR_NONE)) );
} }
bool CUDPSocket::open() bool CUDPSocket::open(const sockaddr_storage& address)
{ {
return open(AF_UNSPEC); return open(address.ss_family);
} }
bool CUDPSocket::open(const unsigned int af) bool CUDPSocket::open(unsigned int af)
{
return open(0, af, m_address_save, m_port_save);
}
bool CUDPSocket::open(const unsigned int index, const unsigned int af, const std::string& address, const unsigned int port)
{ {
int err;
sockaddr_storage addr; sockaddr_storage addr;
unsigned int addrlen; unsigned int addrlen;
struct addrinfo hints; struct addrinfo hints;
@ -143,43 +179,48 @@ bool CUDPSocket::open(const unsigned int af)
hints.ai_family = af; hints.ai_family = af;
/* to determine protocol family, call lookup() first. */ /* to determine protocol family, call lookup() first. */
err = lookup(m_address, m_port, addr, addrlen, hints); int err = lookup(address, port, addr, addrlen, hints);
if (err) { if (err != 0) {
::fprintf(stderr, "The local address is invalid - %s\n", m_address.c_str()); LogError("The local address is invalid - %s", address.c_str());
return false; return false;
} }
m_fd = ::socket(addr.ss_family, SOCK_DGRAM, 0); int fd = ::socket(addr.ss_family, SOCK_DGRAM, 0);
if (m_fd < 0) { if (fd < 0) {
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
::fprintf(stderr, "Cannot create the UDP socket, err: %lu\n", ::GetLastError()); LogError("Cannot create the UDP socket, err: %lu", ::GetLastError());
#else #else
::fprintf(stderr, "Cannot create the UDP socket, err: %d\n", errno); LogError("Cannot create the UDP socket, err: %d", errno);
#endif #endif
return false; return false;
} }
if (m_port > 0U) { m_address[index] = address;
m_port[index] = port;
m_af[index] = addr.ss_family;
m_fd[index] = fd;
if (port > 0U) {
int reuse = 1; int reuse = 1;
if (::setsockopt(m_fd, SOL_SOCKET, SO_REUSEADDR, (char *)&reuse, sizeof(reuse)) == -1) { if (::setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *)&reuse, sizeof(reuse)) == -1) {
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
::fprintf(stderr, "Cannot set the UDP socket option, err: %lu\n", ::GetLastError()); LogError("Cannot set the UDP socket option, err: %lu", ::GetLastError());
#else #else
::fprintf(stderr, "Cannot set the UDP socket option, err: %d\n", errno); LogError("Cannot set the UDP socket option, err: %d", errno);
#endif #endif
return false; return false;
} }
if (::bind(m_fd, (sockaddr*)&addr, addrlen) == -1) { if (::bind(fd, (sockaddr*)&addr, addrlen) == -1) {
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
::fprintf(stderr, "Cannot bind the UDP address, err: %lu\n", ::GetLastError()); LogError("Cannot bind the UDP address, err: %lu", ::GetLastError());
#else #else
::fprintf(stderr, "Cannot bind the UDP address, err: %d\n", errno); LogError("Cannot bind the UDP address, err: %d", errno);
#endif #endif
return false; return false;
} }
::fprintf(stdout, "Opening UDP port on %u\n", m_port); LogInfo("Opening UDP port on %u", port);
} }
return true; return true;
@ -191,30 +232,43 @@ int CUDPSocket::read(unsigned char* buffer, unsigned int length, sockaddr_storag
assert(length > 0U); assert(length > 0U);
// Check that the readfrom() won't block // Check that the readfrom() won't block
fd_set readFds; int i, n;
FD_ZERO(&readFds); struct pollfd pfd[UDP_SOCKET_MAX];
#if defined(_WIN32) || defined(_WIN64) for (i = n = 0; i < UDP_SOCKET_MAX; i++) {
FD_SET((unsigned int)m_fd, &readFds); if (m_fd[i] >= 0) {
#else pfd[n].fd = m_fd[i];
FD_SET(m_fd, &readFds); pfd[n].events = POLLIN;
#endif n++;
}
}
// no socket descriptor to receive
if (n == 0)
return 0;
// Return immediately // Return immediately
timeval tv; #if defined(_WIN32) || defined(_WIN64)
tv.tv_sec = 0L; int ret = WSAPoll(pfd, n, 0);
tv.tv_usec = 0L; #else
int ret = ::poll(pfd, n, 0);
int ret = ::select(m_fd + 1, &readFds, NULL, NULL, &tv); #endif
if (ret < 0) { if (ret < 0) {
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
::fprintf(stderr, "Error returned from UDP select, err: %lu\n", ::GetLastError()); LogError("Error returned from UDP poll, err: %lu", ::GetLastError());
#else #else
::fprintf(stderr, "Error returned from UDP select, err: %d\n", errno); LogError("Error returned from UDP poll, err: %d", errno);
#endif #endif
return -1; return -1;
} }
if (ret == 0) int index;
for (i = 0; i < n; i++) {
// round robin
index = (i + m_counter) % n;
if (pfd[index].revents & POLLIN)
break;
}
if (i == n)
return 0; return 0;
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
@ -224,19 +278,20 @@ int CUDPSocket::read(unsigned char* buffer, unsigned int length, sockaddr_storag
#endif #endif
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
int len = ::recvfrom(m_fd, (char*)buffer, length, 0, (sockaddr *)&address, &size); int len = ::recvfrom(pfd[index].fd, (char*)buffer, length, 0, (sockaddr *)&address, &size);
#else #else
ssize_t len = ::recvfrom(m_fd, (char*)buffer, length, 0, (sockaddr *)&address, &size); ssize_t len = ::recvfrom(pfd[index].fd, (char*)buffer, length, 0, (sockaddr *)&address, &size);
#endif #endif
if (len <= 0) { if (len <= 0) {
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
::fprintf(stderr, "Error returned from recvfrom, err: %lu\n", ::GetLastError()); LogError("Error returned from recvfrom, err: %lu", ::GetLastError());
#else #else
::fprintf(stderr, "Error returned from recvfrom, err: %d\n", errno); LogError("Error returned from recvfrom, err: %d", errno);
#endif #endif
return -1; return -1;
} }
m_counter++;
address_length = size; address_length = size;
return len; return len;
} }
@ -246,36 +301,52 @@ bool CUDPSocket::write(const unsigned char* buffer, unsigned int length, const s
assert(buffer != NULL); assert(buffer != NULL);
assert(length > 0U); assert(length > 0U);
bool result = false;
for (int i = 0; i < UDP_SOCKET_MAX; i++) {
if (m_fd[i] < 0 || m_af[i] != address.ss_family)
continue;
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
int ret = ::sendto(m_fd, (char *)buffer, length, 0, (sockaddr *)&address, address_length); int ret = ::sendto(m_fd[i], (char *)buffer, length, 0, (sockaddr *)&address, address_length);
#else #else
ssize_t ret = ::sendto(m_fd, (char *)buffer, length, 0, (sockaddr *)&address, address_length); ssize_t ret = ::sendto(m_fd[i], (char *)buffer, length, 0, (sockaddr *)&address, address_length);
#endif #endif
if (ret < 0) { if (ret < 0) {
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
::fprintf(stderr, "Error returned from sendto, err: %lu\n", ::GetLastError()); LogError("Error returned from sendto, err: %lu", ::GetLastError());
#else #else
::fprintf(stderr, "Error returned from sendto, err: %d\n", errno); LogError("Error returned from sendto, err: %d", errno);
#endif #endif
return false; } else {
#if defined(_WIN32) || defined(_WIN64)
if (ret == int(length))
result = true;
#else
if (ret == ssize_t(length))
result = true;
#endif
}
} }
#if defined(_WIN32) || defined(_WIN64) return result;
if (ret != int(length))
return false;
#else
if (ret != ssize_t(length))
return false;
#endif
return true;
} }
void CUDPSocket::close() void CUDPSocket::close()
{ {
#if defined(_WIN32) || defined(_WIN64) for (int i = 0; i < UDP_SOCKET_MAX; i++)
::closesocket(m_fd); close(m_fd[i]);
#else }
::close(m_fd);
#endif void CUDPSocket::close(const unsigned int index)
{
if (m_fd[index] >= 0) {
#if defined(_WIN32) || defined(_WIN64)
::closesocket(m_fd[index]);
#else
::close(m_fd[index]);
#endif
m_fd[index] = -1;
}
} }

33
P25Parrot/UDPSocket.h
View File

@ -1,5 +1,5 @@
/* /*
* Copyright (C) 2009-2011,2013,2015,2016 by Jonathan Naylor G4KLX * Copyright (C) 2009-2011,2013,2015,2016,2020 by Jonathan Naylor G4KLX
* *
* This program is free software; you can redistribute it and/or modify * 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 * it under the terms of the GNU General Public License as published by
@ -26,6 +26,7 @@
#include <sys/time.h> #include <sys/time.h>
#include <sys/types.h> #include <sys/types.h>
#include <sys/socket.h> #include <sys/socket.h>
#include <poll.h>
#include <unistd.h> #include <unistd.h>
#include <netinet/in.h> #include <netinet/in.h>
#include <arpa/inet.h> #include <arpa/inet.h>
@ -35,29 +36,45 @@
#include <ws2tcpip.h> #include <ws2tcpip.h>
#endif #endif
#if !defined(UDP_SOCKET_MAX)
#define UDP_SOCKET_MAX 1
#endif
enum IPMATCHTYPE {
IMT_ADDRESS_AND_PORT,
IMT_ADDRESS_ONLY
};
class CUDPSocket { class CUDPSocket {
public: public:
CUDPSocket(const std::string& address, unsigned int port = 0U); CUDPSocket(const std::string& address, unsigned int port = 0U);
CUDPSocket(unsigned int port = 0U); CUDPSocket(unsigned int port = 0U);
~CUDPSocket(); ~CUDPSocket();
bool open(); bool open(unsigned int af = AF_UNSPEC);
bool open(const unsigned int af); bool open(const sockaddr_storage& address);
bool open(const unsigned int index, const unsigned int af, const std::string& address, const unsigned int port);
int read(unsigned char* buffer, unsigned int length, sockaddr_storage& address, unsigned int &address_length); int read(unsigned char* buffer, unsigned int length, sockaddr_storage& address, unsigned int &address_length);
bool write(const unsigned char* buffer, unsigned int length, const sockaddr_storage& address, unsigned int address_length); bool write(const unsigned char* buffer, unsigned int length, const sockaddr_storage& address, unsigned int address_length);
void close(); void close();
void close(const unsigned int index);
static int lookup(const std::string& hostName, unsigned int port, sockaddr_storage& address, unsigned int& address_length); static int lookup(const std::string& hostName, unsigned int port, sockaddr_storage& address, unsigned int& address_length);
static int lookup(const std::string& hostName, unsigned int port, sockaddr_storage& address, unsigned int& address_length, struct addrinfo& hints); static int lookup(const std::string& hostName, unsigned int port, sockaddr_storage& address, unsigned int& address_length, struct addrinfo& hints);
static bool match(const sockaddr_storage &addr1, const sockaddr_storage &addr2); static bool match(const sockaddr_storage& addr1, const sockaddr_storage& addr2, IPMATCHTYPE type = IMT_ADDRESS_AND_PORT);
static bool isnone(const sockaddr_storage &addr);
static bool isNone(const sockaddr_storage& addr);
private: private:
std::string m_address; std::string m_address_save;
unsigned short m_port; unsigned short m_port_save;
int m_fd; std::string m_address[UDP_SOCKET_MAX];
unsigned short m_port[UDP_SOCKET_MAX];
unsigned int m_af[UDP_SOCKET_MAX];
int m_fd[UDP_SOCKET_MAX];
unsigned int m_counter;
}; };
#endif #endif

2
P25Parrot/Version.h
View File

@ -19,6 +19,6 @@
#if !defined(VERSION_H) #if !defined(VERSION_H)
#define VERSION_H #define VERSION_H
const char* VERSION = "20200903"; const char* VERSION = "20200906";
#endif #endif

6
P25Reflector/Makefile
View File

@ -1,6 +1,6 @@
CC = gcc CC = cc
CXX = g++ CXX = c++
CFLAGS = -g -O3 -Wall -std=c++0x -pthread CFLAGS = -g -O3 -Wall -DHAVE_LOG_H -std=c++0x -pthread
LIBS = -lpthread LIBS = -lpthread
LDFLAGS = -g LDFLAGS = -g

190
P25Reflector/UDPSocket.cpp
View File

@ -17,7 +17,6 @@
*/ */
#include "UDPSocket.h" #include "UDPSocket.h"
#include "Log.h"
#include <cassert> #include <cassert>
@ -26,26 +25,36 @@
#include <cstring> #include <cstring>
#endif #endif
#if defined(HAVE_LOG_H)
#include "Log.h"
#else
#define LogError(fmt, ...) ::fprintf(stderr, fmt "\n", ## __VA_ARGS__)
#define LogInfo(fmt, ...) ::fprintf(stderr, fmt "\n", ## __VA_ARGS__)
#endif
CUDPSocket::CUDPSocket(const std::string& address, unsigned int port) : CUDPSocket::CUDPSocket(const std::string& address, unsigned int port) :
m_address(address), m_address_save(address),
m_port(port), m_port_save(port),
m_fd(-1) m_counter(0U)
{ {
assert(!address.empty());
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
WSAData data; WSAData data;
int wsaRet = ::WSAStartup(MAKEWORD(2, 2), &data); int wsaRet = ::WSAStartup(MAKEWORD(2, 2), &data);
if (wsaRet != 0) if (wsaRet != 0)
LogError("Error from WSAStartup"); LogError("Error from WSAStartup");
#endif #endif
for (int i = 0; i < UDP_SOCKET_MAX; i++) {
m_address[i] = "";
m_port[i] = 0U;
m_af[i] = 0U;
m_fd[i] = -1;
}
} }
CUDPSocket::CUDPSocket(unsigned int port) : CUDPSocket::CUDPSocket(unsigned int port) :
m_address(), m_address_save(),
m_port(port), m_port_save(port),
m_fd(-1) m_counter(0U)
{ {
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
WSAData data; WSAData data;
@ -53,6 +62,12 @@ m_fd(-1)
if (wsaRet != 0) if (wsaRet != 0)
LogError("Error from WSAStartup"); LogError("Error from WSAStartup");
#endif #endif
for (int i = 0; i < UDP_SOCKET_MAX; i++) {
m_address[i] = "";
m_port[i] = 0U;
m_af[i] = 0U;
m_fd[i] = -1;
}
} }
CUDPSocket::~CUDPSocket() CUDPSocket::~CUDPSocket()
@ -96,40 +111,64 @@ int CUDPSocket::lookup(const std::string& hostname, unsigned int port, sockaddr_
return 0; return 0;
} }
bool CUDPSocket::match(const sockaddr_storage& addr1, const sockaddr_storage& addr2) bool CUDPSocket::match(const sockaddr_storage& addr1, const sockaddr_storage& addr2, IPMATCHTYPE type)
{ {
if (addr1.ss_family != addr2.ss_family) if (addr1.ss_family != addr2.ss_family)
return false; return false;
if (type == IMT_ADDRESS_AND_PORT) {
switch (addr1.ss_family) { switch (addr1.ss_family) {
case AF_INET: case AF_INET:
struct sockaddr_in *in_1, *in_2; struct sockaddr_in *in_1, *in_2;
in_1 = (struct sockaddr_in*)&addr1; in_1 = (struct sockaddr_in*)&addr1;
in_2 = (struct sockaddr_in*)&addr2; in_2 = (struct sockaddr_in*)&addr2;
return ((in_1->sin_addr.s_addr == in_2->sin_addr.s_addr) && (in_1->sin_port == in_2->sin_port)); return (in_1->sin_addr.s_addr == in_2->sin_addr.s_addr) && (in_1->sin_port == in_2->sin_port);
case AF_INET6: case AF_INET6:
struct sockaddr_in6 *in6_1, *in6_2; struct sockaddr_in6 *in6_1, *in6_2;
in6_1 = (struct sockaddr_in6*)&addr1; in6_1 = (struct sockaddr_in6*)&addr1;
in6_2 = (struct sockaddr_in6*)&addr2; in6_2 = (struct sockaddr_in6*)&addr2;
return (IN6_ARE_ADDR_EQUAL(&in6_1->sin6_addr, &in6_2->sin6_addr) && (in6_1->sin6_port == in6_2->sin6_port)); return IN6_ARE_ADDR_EQUAL(&in6_1->sin6_addr, &in6_2->sin6_addr) && (in6_1->sin6_port == in6_2->sin6_port);
default: default:
return false; return false;
} }
} else if (type == IMT_ADDRESS_ONLY) {
switch (addr1.ss_family) {
case AF_INET:
struct sockaddr_in *in_1, *in_2;
in_1 = (struct sockaddr_in*)&addr1;
in_2 = (struct sockaddr_in*)&addr2;
return in_1->sin_addr.s_addr == in_2->sin_addr.s_addr;
case AF_INET6:
struct sockaddr_in6 *in6_1, *in6_2;
in6_1 = (struct sockaddr_in6*)&addr1;
in6_2 = (struct sockaddr_in6*)&addr2;
return IN6_ARE_ADDR_EQUAL(&in6_1->sin6_addr, &in6_2->sin6_addr);
default:
return false;
}
} else {
return false;
}
} }
bool CUDPSocket::isnone(const sockaddr_storage& addr) bool CUDPSocket::isNone(const sockaddr_storage& addr)
{ {
struct sockaddr_in *in = (struct sockaddr_in *)&addr; struct sockaddr_in *in = (struct sockaddr_in *)&addr;
return ((addr.ss_family == AF_INET) && (in->sin_addr.s_addr == htonl(INADDR_NONE))); return ((addr.ss_family == AF_INET) && (in->sin_addr.s_addr == htonl(INADDR_NONE)));
} }
bool CUDPSocket::open() bool CUDPSocket::open(const sockaddr_storage& address)
{ {
return open(AF_UNSPEC); return open(address.ss_family);
} }
bool CUDPSocket::open(const unsigned int af) bool CUDPSocket::open(unsigned int af)
{
return open(0, af, m_address_save, m_port_save);
}
bool CUDPSocket::open(const unsigned int index, const unsigned int af, const std::string& address, const unsigned int port)
{ {
sockaddr_storage addr; sockaddr_storage addr;
unsigned int addrlen; unsigned int addrlen;
@ -140,14 +179,14 @@ bool CUDPSocket::open(const unsigned int af)
hints.ai_family = af; hints.ai_family = af;
/* to determine protocol family, call lookup() first. */ /* to determine protocol family, call lookup() first. */
int err = lookup(m_address, m_port, addr, addrlen, hints); int err = lookup(address, port, addr, addrlen, hints);
if (err != 0) { if (err != 0) {
LogError("The local address is invalid - %s", m_address.c_str()); LogError("The local address is invalid - %s", address.c_str());
return false; return false;
} }
m_fd = ::socket(addr.ss_family, SOCK_DGRAM, 0); int fd = ::socket(addr.ss_family, SOCK_DGRAM, 0);
if (m_fd < 0) { if (fd < 0) {
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
LogError("Cannot create the UDP socket, err: %lu", ::GetLastError()); LogError("Cannot create the UDP socket, err: %lu", ::GetLastError());
#else #else
@ -156,9 +195,14 @@ bool CUDPSocket::open(const unsigned int af)
return false; return false;
} }
if (m_port > 0U) { m_address[index] = address;
m_port[index] = port;
m_af[index] = addr.ss_family;
m_fd[index] = fd;
if (port > 0U) {
int reuse = 1; int reuse = 1;
if (::setsockopt(m_fd, SOL_SOCKET, SO_REUSEADDR, (char *)&reuse, sizeof(reuse)) == -1) { if (::setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *)&reuse, sizeof(reuse)) == -1) {
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
LogError("Cannot set the UDP socket option, err: %lu", ::GetLastError()); LogError("Cannot set the UDP socket option, err: %lu", ::GetLastError());
#else #else
@ -167,7 +211,7 @@ bool CUDPSocket::open(const unsigned int af)
return false; return false;
} }
if (::bind(m_fd, (sockaddr*)&addr, addrlen) == -1) { if (::bind(fd, (sockaddr*)&addr, addrlen) == -1) {
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
LogError("Cannot bind the UDP address, err: %lu", ::GetLastError()); LogError("Cannot bind the UDP address, err: %lu", ::GetLastError());
#else #else
@ -176,7 +220,7 @@ bool CUDPSocket::open(const unsigned int af)
return false; return false;
} }
LogInfo("Opening UDP port on %u", m_port); LogInfo("Opening UDP port on %u", port);
} }
return true; return true;
@ -188,30 +232,43 @@ int CUDPSocket::read(unsigned char* buffer, unsigned int length, sockaddr_storag
assert(length > 0U); assert(length > 0U);
// Check that the readfrom() won't block // Check that the readfrom() won't block
fd_set readFds; int i, n;
FD_ZERO(&readFds); struct pollfd pfd[UDP_SOCKET_MAX];
#if defined(_WIN32) || defined(_WIN64) for (i = n = 0; i < UDP_SOCKET_MAX; i++) {
FD_SET((unsigned int)m_fd, &readFds); if (m_fd[i] >= 0) {
#else pfd[n].fd = m_fd[i];
FD_SET(m_fd, &readFds); pfd[n].events = POLLIN;
#endif n++;
}
}
// no socket descriptor to receive
if (n == 0)
return 0;
// Return immediately // Return immediately
timeval tv; #if defined(_WIN32) || defined(_WIN64)
tv.tv_sec = 0L; int ret = WSAPoll(pfd, n, 0);
tv.tv_usec = 0L; #else
int ret = ::poll(pfd, n, 0);
int ret = ::select(m_fd + 1, &readFds, NULL, NULL, &tv); #endif
if (ret < 0) { if (ret < 0) {
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
LogError("Error returned from UDP select, err: %lu", ::GetLastError()); LogError("Error returned from UDP poll, err: %lu", ::GetLastError());
#else #else
LogError("Error returned from UDP select, err: %d", errno); LogError("Error returned from UDP poll, err: %d", errno);
#endif #endif
return -1; return -1;
} }
if (ret == 0) int index;
for (i = 0; i < n; i++) {
// round robin
index = (i + m_counter) % n;
if (pfd[index].revents & POLLIN)
break;
}
if (i == n)
return 0; return 0;
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
@ -221,9 +278,9 @@ int CUDPSocket::read(unsigned char* buffer, unsigned int length, sockaddr_storag
#endif #endif
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
int len = ::recvfrom(m_fd, (char*)buffer, length, 0, (sockaddr *)&address, &size); int len = ::recvfrom(pfd[index].fd, (char*)buffer, length, 0, (sockaddr *)&address, &size);
#else #else
ssize_t len = ::recvfrom(m_fd, (char*)buffer, length, 0, (sockaddr *)&address, &size); ssize_t len = ::recvfrom(pfd[index].fd, (char*)buffer, length, 0, (sockaddr *)&address, &size);
#endif #endif
if (len <= 0) { if (len <= 0) {
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
@ -234,6 +291,7 @@ int CUDPSocket::read(unsigned char* buffer, unsigned int length, sockaddr_storag
return -1; return -1;
} }
m_counter++;
address_length = size; address_length = size;
return len; return len;
} }
@ -243,36 +301,52 @@ bool CUDPSocket::write(const unsigned char* buffer, unsigned int length, const s
assert(buffer != NULL); assert(buffer != NULL);
assert(length > 0U); assert(length > 0U);
bool result = false;
for (int i = 0; i < UDP_SOCKET_MAX; i++) {
if (m_fd[i] < 0 || m_af[i] != address.ss_family)
continue;
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
int ret = ::sendto(m_fd, (char *)buffer, length, 0, (sockaddr *)&address, address_length); int ret = ::sendto(m_fd[i], (char *)buffer, length, 0, (sockaddr *)&address, address_length);
#else #else
ssize_t ret = ::sendto(m_fd, (char *)buffer, length, 0, (sockaddr *)&address, address_length); ssize_t ret = ::sendto(m_fd[i], (char *)buffer, length, 0, (sockaddr *)&address, address_length);
#endif #endif
if (ret < 0) { if (ret < 0) {
#if defined(_WIN32) || defined(_WIN64) #if defined(_WIN32) || defined(_WIN64)
LogError("Error returned from sendto, err: %lu", ::GetLastError()); LogError("Error returned from sendto, err: %lu", ::GetLastError());
#else #else
LogError("Error returned from sendto, err: %d", errno); LogError("Error returned from sendto, err: %d", errno);
#endif #endif
return false; } else {
#if defined(_WIN32) || defined(_WIN64)
if (ret == int(length))
result = true;
#else
if (ret == ssize_t(length))
result = true;
#endif
}
} }
#if defined(_WIN32) || defined(_WIN64) return result;
if (ret != int(length))
return false;
#else
if (ret != ssize_t(length))
return false;
#endif
return true;
} }
void CUDPSocket::close() void CUDPSocket::close()
{ {
#if defined(_WIN32) || defined(_WIN64) for (int i = 0; i < UDP_SOCKET_MAX; i++)
::closesocket(m_fd); close(m_fd[i]);
#else }
::close(m_fd);
#endif void CUDPSocket::close(const unsigned int index)
{
if (m_fd[index] >= 0) {
#if defined(_WIN32) || defined(_WIN64)
::closesocket(m_fd[index]);
#else
::close(m_fd[index]);
#endif
m_fd[index] = -1;
}
} }

31
P25Reflector/UDPSocket.h
View File

@ -26,6 +26,7 @@
#include <sys/time.h> #include <sys/time.h>
#include <sys/types.h> #include <sys/types.h>
#include <sys/socket.h> #include <sys/socket.h>
#include <poll.h>
#include <unistd.h> #include <unistd.h>
#include <netinet/in.h> #include <netinet/in.h>
#include <arpa/inet.h> #include <arpa/inet.h>
@ -35,29 +36,45 @@
#include <ws2tcpip.h> #include <ws2tcpip.h>
#endif #endif
#if !defined(UDP_SOCKET_MAX)
#define UDP_SOCKET_MAX 1
#endif
enum IPMATCHTYPE {
IMT_ADDRESS_AND_PORT,
IMT_ADDRESS_ONLY
};
class CUDPSocket { class CUDPSocket {
public: public:
CUDPSocket(const std::string& address, unsigned int port = 0U); CUDPSocket(const std::string& address, unsigned int port = 0U);
CUDPSocket(unsigned int port = 0U); CUDPSocket(unsigned int port = 0U);
~CUDPSocket(); ~CUDPSocket();
bool open(); bool open(unsigned int af = AF_UNSPEC);
bool open(const unsigned int af); bool open(const sockaddr_storage& address);
bool open(const unsigned int index, const unsigned int af, const std::string& address, const unsigned int port);
int read(unsigned char* buffer, unsigned int length, sockaddr_storage& address, unsigned int &address_length); int read(unsigned char* buffer, unsigned int length, sockaddr_storage& address, unsigned int &address_length);
bool write(const unsigned char* buffer, unsigned int length, const sockaddr_storage& address, unsigned int address_length); bool write(const unsigned char* buffer, unsigned int length, const sockaddr_storage& address, unsigned int address_length);
void close(); void close();
void close(const unsigned int index);
static int lookup(const std::string& hostName, unsigned int port, sockaddr_storage& address, unsigned int& address_length); static int lookup(const std::string& hostName, unsigned int port, sockaddr_storage& address, unsigned int& address_length);
static int lookup(const std::string& hostName, unsigned int port, sockaddr_storage& address, unsigned int& address_length, struct addrinfo& hints); static int lookup(const std::string& hostName, unsigned int port, sockaddr_storage& address, unsigned int& address_length, struct addrinfo& hints);
static bool match(const sockaddr_storage& addr1, const sockaddr_storage& addr2); static bool match(const sockaddr_storage& addr1, const sockaddr_storage& addr2, IPMATCHTYPE type = IMT_ADDRESS_AND_PORT);
static bool isnone(const sockaddr_storage& addr);
static bool isNone(const sockaddr_storage& addr);
private: private:
std::string m_address; std::string m_address_save;
unsigned short m_port; unsigned short m_port_save;
int m_fd; std::string m_address[UDP_SOCKET_MAX];
unsigned short m_port[UDP_SOCKET_MAX];
unsigned int m_af[UDP_SOCKET_MAX];
int m_fd[UDP_SOCKET_MAX];
unsigned int m_counter;
}; };
#endif #endif