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replace sockaddr_in -> sockaddr_storage to support IPv6

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This commit is contained in:
SASANO Takayoshi
2019-10-23 12:04:06 +09:00
parent 47bc9c5bcd
commit 249bae1e7b
6 changed files with 122 additions and 108 deletions
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35
DMRNetwork.cpp
View File

@@ -33,7 +33,7 @@ const unsigned int HOMEBREW_DATA_PACKET_LENGTH = 55U;
CDMRNetwork::CDMRNetwork(const std::string& address, unsigned int port, unsigned int local, unsigned int id, const std::string& password, const std::string& name, const char* version, bool debug) :
m_address(),
m_port(port),
m_addrlen(),
m_id(NULL),
m_password(password),
m_name(name),
@@ -57,7 +57,7 @@ m_beacon(false)
assert(!password.empty());
assert(version != NULL);
m_address = CUDPSocket::lookup(address);
CUDPSocket::lookup(address, port, m_address, m_addrlen);
m_buffer = new unsigned char[BUFFER_LENGTH];
m_salt = new unsigned char[sizeof(uint32_t)];
@@ -319,9 +319,9 @@ void CDMRNetwork::clock(unsigned int ms)
return;
}
in_addr address;
unsigned int port;
int length = m_socket.read(m_buffer, BUFFER_LENGTH, address, port);
sockaddr_storage address;
unsigned int addrlen;
int length = m_socket.read(m_buffer, BUFFER_LENGTH, address, addrlen);
if (length < 0) {
LogError("%s, Socket has failed, retrying connection to the master", m_name.c_str());
close();
@@ -332,7 +332,28 @@ void CDMRNetwork::clock(unsigned int ms)
// if (m_debug && length > 0)
// CUtils::dump(1U, "Network Received", m_buffer, length);
if (length > 0 && m_address.s_addr == address.s_addr && m_port == port) {
int valid_addr;
switch (address.ss_family) {
case AF_INET:
struct sockaddr_in *pi4, *pm4;
pi4 = (struct sockaddr_in *)&address;
pm4 = (struct sockaddr_in *)&m_address;
valid_addr = ((pi4->sin_addr.s_addr == pm4->sin_addr.s_addr) &&
(pi4->sin_port == pm4->sin_port));
break;
case AF_INET6:
struct sockaddr_in6 *pi6, *pm6;
pi6 = (struct sockaddr_in6 *)&address;
pm6 = (struct sockaddr_in6 *)&m_address;
valid_addr = (!::memcmp(pi6->sin6_addr.s6_addr, pm6->sin6_addr.s6_addr, sizeof(in6_addr)) &&
(pi6->sin6_port == pm6->sin6_port));
break;
default:
valid_addr = 0;
break;
}
if (length > 0 && valid_addr) {
if (::memcmp(m_buffer, "DMRD", 4U) == 0) {
if (m_debug)
CUtils::dump(1U, "Network Received", m_buffer, length);
@@ -527,7 +548,7 @@ bool CDMRNetwork::write(const unsigned char* data, unsigned int length)
// if (m_debug)
// CUtils::dump(1U, "Network Transmitted", data, length);
bool ret = m_socket.write(data, length, m_address, m_port);
bool ret = m_socket.write(data, length, m_address, m_addrlen);
if (!ret) {
LogError("%s, Socket has failed when writing data to the master, retrying connection", m_name.c_str());
m_socket.close();

16
DMRNetwork.h
View File

@@ -58,14 +58,14 @@ public:
void close();
private:
in_addr m_address;
unsigned int m_port;
uint8_t* m_id;
std::string m_password;
std::string m_name;
const char* m_version;
bool m_debug;
CUDPSocket m_socket;
sockaddr_storage m_address;
unsigned int m_addrlen;
uint8_t* m_id;
std::string m_password;
std::string m_name;
const char* m_version;
bool m_debug;
CUDPSocket m_socket;
enum STATUS {
WAITING_CONNECT,

49
MMDVMNetwork.cpp
View File

@@ -33,7 +33,7 @@ const unsigned int HOMEBREW_DATA_PACKET_LENGTH = 55U;
CMMDVMNetwork::CMMDVMNetwork(const std::string& rptAddress, unsigned int rptPort, const std::string& localAddress, unsigned int localPort, bool debug) :
m_rptAddress(),
m_rptPort(rptPort),
m_rptAddrLen(),
m_id(0U),
m_netId(NULL),
m_debug(debug),
@@ -53,7 +53,7 @@ m_homePositionLen(0U)
assert(!rptAddress.empty());
assert(rptPort > 0U);
m_rptAddress = CUDPSocket::lookup(rptAddress);
CUDPSocket::lookup(rptAddress, rptPort, m_rptAddress, m_rptAddrLen);
m_buffer = new unsigned char[BUFFER_LENGTH];
m_netId = new unsigned char[4U];
@@ -217,7 +217,7 @@ bool CMMDVMNetwork::write(const CDMRData& data)
if (m_debug)
CUtils::dump(1U, "Network Transmitted", buffer, HOMEBREW_DATA_PACKET_LENGTH);
m_socket.write(buffer, HOMEBREW_DATA_PACKET_LENGTH, m_rptAddress, m_rptPort);
m_socket.write(buffer, HOMEBREW_DATA_PACKET_LENGTH, m_rptAddress, m_rptAddrLen);
return true;
}
@@ -267,7 +267,7 @@ bool CMMDVMNetwork::writeBeacon()
::memcpy(buffer + 0U, "RPTSBKN", 7U);
::memcpy(buffer + 7U, m_netId, 4U);
return m_socket.write(buffer, 11U, m_rptAddress, m_rptPort);
return m_socket.write(buffer, 11U, m_rptAddress, m_rptAddrLen);
}
void CMMDVMNetwork::close()
@@ -280,15 +280,15 @@ void CMMDVMNetwork::close()
::memcpy(buffer + 0U, "MSTCL", 5U);
::memcpy(buffer + 5U, m_netId, 4U);
m_socket.write(buffer, HOMEBREW_DATA_PACKET_LENGTH, m_rptAddress, m_rptPort);
m_socket.write(buffer, HOMEBREW_DATA_PACKET_LENGTH, m_rptAddress, m_rptAddrLen);
m_socket.close();
}
void CMMDVMNetwork::clock(unsigned int ms)
{
in_addr address;
unsigned int port;
int length = m_socket.read(m_buffer, BUFFER_LENGTH, address, port);
sockaddr_storage address;
unsigned int addrlen;
int length = m_socket.read(m_buffer, BUFFER_LENGTH, address, addrlen);
if (length < 0) {
LogError("MMDVM Network, Socket has failed, reopening");
close();
@@ -299,7 +299,28 @@ void CMMDVMNetwork::clock(unsigned int ms)
// if (m_debug && length > 0)
// CUtils::dump(1U, "Network Received", m_buffer, length);
if (length > 0 && m_rptAddress.s_addr == address.s_addr && m_rptPort == port) {
int valid_addr;
switch (address.ss_family) {
case AF_INET:
struct sockaddr_in *pi4, *pm4;
pi4 = (struct sockaddr_in *)&address;
pm4 = (struct sockaddr_in *)&m_rptAddress;
valid_addr = ((pi4->sin_addr.s_addr == pm4->sin_addr.s_addr) &&
(pi4->sin_port == pm4->sin_port));
break;
case AF_INET6:
struct sockaddr_in6 *pi6, *pm6;
pi6 = (struct sockaddr_in6 *)&address;
pm6 = (struct sockaddr_in6 *)&m_rptAddress;
valid_addr = (!::memcmp(pi6->sin6_addr.s6_addr, pm6->sin6_addr.s6_addr, sizeof(in6_addr)) &&
(pi6->sin6_port == pm6->sin6_port));
break;
default:
valid_addr = 0;
break;
}
if (length > 0 && valid_addr) {
if (::memcmp(m_buffer, "DMRD", 4U) == 0) {
if (m_debug)
CUtils::dump(1U, "Network Received", m_buffer, length);
@@ -326,12 +347,12 @@ void CMMDVMNetwork::clock(unsigned int ms)
uint32_t salt = 1U;
::memcpy(ack + 6U, &salt, sizeof(uint32_t));
m_socket.write(ack, 10U, m_rptAddress, m_rptPort);
m_socket.write(ack, 10U, m_rptAddress, m_rptAddrLen);
} else if (::memcmp(m_buffer, "RPTK", 4U) == 0) {
unsigned char ack[10U];
::memcpy(ack + 0U, "RPTACK", 6U);
::memcpy(ack + 6U, m_netId, 4U);
m_socket.write(ack, 10U, m_rptAddress, m_rptPort);
m_socket.write(ack, 10U, m_rptAddress, m_rptAddrLen);
} else if (::memcmp(m_buffer, "RPTCL", 5U) == 0) {
::LogMessage("MMDVM Network, The connected MMDVM is closing down");
} else if (::memcmp(m_buffer, "RPTC", 4U) == 0) {
@@ -342,19 +363,19 @@ void CMMDVMNetwork::clock(unsigned int ms)
unsigned char ack[10U];
::memcpy(ack + 0U, "RPTACK", 6U);
::memcpy(ack + 6U, m_netId, 4U);
m_socket.write(ack, 10U, m_rptAddress, m_rptPort);
m_socket.write(ack, 10U, m_rptAddress, m_rptAddrLen);
} else if (::memcmp(m_buffer, "RPTO", 4U) == 0) {
m_options = std::string((char*)(m_buffer + 8U), length - 8U);
unsigned char ack[10U];
::memcpy(ack + 0U, "RPTACK", 6U);
::memcpy(ack + 6U, m_netId, 4U);
m_socket.write(ack, 10U, m_rptAddress, m_rptPort);
m_socket.write(ack, 10U, m_rptAddress, m_rptAddrLen);
} else if (::memcmp(m_buffer, "RPTPING", 7U) == 0) {
unsigned char pong[11U];
::memcpy(pong + 0U, "MSTPONG", 7U);
::memcpy(pong + 7U, m_netId, 4U);
m_socket.write(pong, 11U, m_rptAddress, m_rptPort);
m_socket.write(pong, 11U, m_rptAddress, m_rptAddrLen);
} else {
CUtils::dump("Unknown packet from the master", m_buffer, length);
}

4
MMDVMNetwork.h
View File

@@ -59,8 +59,8 @@ public:
virtual void close();
private:
in_addr m_rptAddress;
unsigned int m_rptPort;
sockaddr_storage m_rptAddress;
unsigned int m_rptAddrLen;
unsigned int m_id;
unsigned char* m_netId;
bool m_debug;

117
UDPSocket.cpp
View File

@@ -62,49 +62,46 @@ CUDPSocket::~CUDPSocket()
#endif
}
in_addr CUDPSocket::lookup(const std::string& hostname)
int CUDPSocket::lookup(const std::string& hostname, unsigned int port, sockaddr_storage &addr, unsigned int &address_length)
{
in_addr addr;
#if defined(_WIN32) || defined(_WIN64)
unsigned long address = ::inet_addr(hostname.c_str());
if (address != INADDR_NONE && address != INADDR_ANY) {
addr.s_addr = address;
return addr;
int err;
std::string portstr = std::to_string(port);
struct addrinfo hints, *res;
::memset(&hints, 0, sizeof(struct addrinfo));
hints.ai_flags = AI_NUMERICSERV;
err = getaddrinfo(hostname.c_str(), portstr.c_str(), &hints, &res);
if (err) {
sockaddr_in *paddr = (sockaddr_in *)&addr;
::memset(paddr, 0, address_length = sizeof(sockaddr_in));
paddr->sin_family = AF_INET;
paddr->sin_port = htons(port);
paddr->sin_addr.s_addr = htonl(INADDR_NONE);
LogError("Cannot find address for host %s", hostname.c_str());
return err;
}
struct hostent* hp = ::gethostbyname(hostname.c_str());
if (hp != NULL) {
::memcpy(&addr, hp->h_addr_list[0], sizeof(struct in_addr));
return addr;
}
::memcpy(&addr, res->ai_addr, address_length = res->ai_addrlen);
LogError("Cannot find address for host %s", hostname.c_str());
addr.s_addr = INADDR_NONE;
return addr;
#else
in_addr_t address = ::inet_addr(hostname.c_str());
if (address != in_addr_t(-1)) {
addr.s_addr = address;
return addr;
}
struct hostent* hp = ::gethostbyname(hostname.c_str());
if (hp != NULL) {
::memcpy(&addr, hp->h_addr_list[0], sizeof(struct in_addr));
return addr;
}
LogError("Cannot find address for host %s", hostname.c_str());
addr.s_addr = INADDR_NONE;
return addr;
#endif
freeaddrinfo(res);
return 0;
}
bool CUDPSocket::open()
{
m_fd = ::socket(PF_INET, SOCK_DGRAM, 0);
int err;
sockaddr_storage addr;
unsigned int addrlen;
/* to determine protocol family, call lookup() first. */
err = lookup(m_address.empty() ? "0.0.0.0" : m_address.c_str(), m_port, addr, addrlen);
if (err) {
LogError("The local address is invalid - %s", m_address.c_str());
return false;
}
m_fd = ::socket(addr.ss_family, SOCK_DGRAM, 0);
if (m_fd < 0) {
#if defined(_WIN32) || defined(_WIN64)
LogError("Cannot create the UDP socket, err: %lu", ::GetLastError());
@@ -115,24 +112,6 @@ bool CUDPSocket::open()
}
if (m_port > 0U) {
sockaddr_in addr;
::memset(&addr, 0x00, sizeof(sockaddr_in));
addr.sin_family = AF_INET;
addr.sin_port = htons(m_port);
addr.sin_addr.s_addr = htonl(INADDR_ANY);
if (!m_address.empty()) {
#if defined(_WIN32) || defined(_WIN64)
addr.sin_addr.s_addr = ::inet_addr(m_address.c_str());
#else
addr.sin_addr.s_addr = ::inet_addr(m_address.c_str());
#endif
if (addr.sin_addr.s_addr == INADDR_NONE) {
LogError("The local address is invalid - %s", m_address.c_str());
return false;
}
}
int reuse = 1;
if (::setsockopt(m_fd, SOL_SOCKET, SO_REUSEADDR, (char *)&reuse, sizeof(reuse)) == -1) {
#if defined(_WIN32) || defined(_WIN64)
@@ -143,7 +122,7 @@ bool CUDPSocket::open()
return false;
}
if (::bind(m_fd, (sockaddr*)&addr, sizeof(sockaddr_in)) == -1) {
if (::bind(m_fd, (sockaddr*)&addr, addrlen) == -1) {
#if defined(_WIN32) || defined(_WIN64)
LogError("Cannot bind the UDP address, err: %lu", ::GetLastError());
#else
@@ -151,12 +130,14 @@ bool CUDPSocket::open()
#endif
return false;
}
LogInfo("Opening UDP port on %u", m_port);
}
return true;
}
int CUDPSocket::read(unsigned char* buffer, unsigned int length, in_addr& address, unsigned int& port)
int CUDPSocket::read(unsigned char* buffer, unsigned int length, sockaddr_storage& address, unsigned int &address_length)
{
assert(buffer != NULL);
assert(length > 0U);
@@ -188,17 +169,16 @@ int CUDPSocket::read(unsigned char* buffer, unsigned int length, in_addr& addres
if (ret == 0)
return 0;
sockaddr_in addr;
#if defined(_WIN32) || defined(_WIN64)
int size = sizeof(sockaddr_in);
int size = sizeof(sockaddr_storage);
#else
socklen_t size = sizeof(sockaddr_in);
socklen_t size = sizeof(sockaddr_storage);
#endif
#if defined(_WIN32) || defined(_WIN64)
int len = ::recvfrom(m_fd, (char*)buffer, length, 0, (sockaddr *)&addr, &size);
int len = ::recvfrom(m_fd, (char*)buffer, length, 0, (sockaddr *)&address, &size);
#else
ssize_t len = ::recvfrom(m_fd, (char*)buffer, length, 0, (sockaddr *)&addr, &size);
ssize_t len = ::recvfrom(m_fd, (char*)buffer, length, 0, (sockaddr *)&address, &size);
#endif
if (len <= 0) {
#if defined(_WIN32) || defined(_WIN64)
@@ -209,28 +189,19 @@ int CUDPSocket::read(unsigned char* buffer, unsigned int length, in_addr& addres
return -1;
}
address = addr.sin_addr;
port = ntohs(addr.sin_port);
address_length = size;
return len;
}
bool CUDPSocket::write(const unsigned char* buffer, unsigned int length, const in_addr& address, unsigned int port)
bool CUDPSocket::write(const unsigned char* buffer, unsigned int length, const sockaddr_storage& address, unsigned int address_length)
{
assert(buffer != NULL);
assert(length > 0U);
sockaddr_in addr;
::memset(&addr, 0x00, sizeof(sockaddr_in));
addr.sin_family = AF_INET;
addr.sin_addr = address;
addr.sin_port = htons(port);
#if defined(_WIN32) || defined(_WIN64)
int ret = ::sendto(m_fd, (char *)buffer, length, 0, (sockaddr *)&addr, sizeof(sockaddr_in));
int ret = ::sendto(m_fd, (char *)buffer, length, 0, (sockaddr *)&address, address_length);
#else
ssize_t ret = ::sendto(m_fd, (char *)buffer, length, 0, (sockaddr *)&addr, sizeof(sockaddr_in));
ssize_t ret = ::sendto(m_fd, (char *)buffer, length, 0, (sockaddr *)&address, address_length);
#endif
if (ret < 0) {
#if defined(_WIN32) || defined(_WIN64)

9
UDPSocket.h
View File

@@ -31,7 +31,8 @@
#include <arpa/inet.h>
#include <errno.h>
#else
#include <winsock.h>
#include <winsock2.h>
#include <ws2tcpip.h>
#endif
class CUDPSocket {
@@ -42,12 +43,12 @@ public:
bool open();
int read(unsigned char* buffer, unsigned int length, in_addr& address, unsigned int& port);
bool write(const unsigned char* buffer, unsigned int length, const in_addr& address, unsigned int port);
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);
void close();
static in_addr lookup(const std::string& hostName);
static int lookup(const std::string& hostName, unsigned int port, sockaddr_storage &address, unsigned int &address_length);
private:
std::string m_address;