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Automatically map IPv4 address to IPv6 when needed

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(cherry picked from commit 9200da58e4)
This commit is contained in:
Fabio Alessandrelli 2016-12-01 04:23:57 +01:00
parent a46a643f90
commit 5e79ac72b7
5 changed files with 22 additions and 10 deletions
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2
drivers/unix/packet_peer_udp_posix.cpp
View file

@ -99,7 +99,7 @@ Error PacketPeerUDPPosix::put_packet(const uint8_t *p_buffer,int p_buffer_size){
int sock = _get_socket();
ERR_FAIL_COND_V( sock == -1, FAILED );
struct sockaddr_storage addr;
size_t addr_size = _set_sockaddr(&addr, peer_addr, peer_port);
size_t addr_size = _set_sockaddr(&addr, peer_addr, peer_port, ip_type);
errno = 0;
int err;

20
drivers/unix/socket_helpers.h
View file

@ -12,18 +12,30 @@
// helpers for sockaddr -> IP_Address and back, should work for posix and winsock. All implementations should use this
static size_t _set_sockaddr(struct sockaddr_storage* p_addr, const IP_Address& p_ip, int p_port) {
static size_t _set_sockaddr(struct sockaddr_storage* p_addr, const IP_Address& p_ip, int p_port, IP_Address::AddrType p_sock_type = IP_Address::TYPE_ANY) {
memset(p_addr, 0, sizeof(struct sockaddr_storage));
if (p_ip.type == IP_Address::TYPE_IPV6) {
// Dual stack (ANY) or matching ip type is required
ERR_FAIL_COND_V(p_sock_type != IP_Address::TYPE_ANY && p_sock_type != p_ip.type,0);
// IPv6 socket
if (p_sock_type == IP_Address::TYPE_IPV6 || p_sock_type == IP_Address::TYPE_ANY) {
struct sockaddr_in6* addr6 = (struct sockaddr_in6*)p_addr;
addr6->sin6_family = AF_INET6;
addr6->sin6_port = htons(p_port);
copymem(&addr6->sin6_addr.s6_addr, p_ip.field8, 16);
if(p_ip.type == IP_Address::TYPE_IPV4) {
// Remapping needed
uint16_t base[8] = {0x0, 0x0, 0x0, 0x0, 0x0, 0xffff, p_ip.field16[0], p_ip.field16[1]};
copymem(&addr6->sin6_addr.s6_addr, base, 16);
} else {
copymem(&addr6->sin6_addr.s6_addr, p_ip.field8, 16);
}
return sizeof(sockaddr_in6);
} else {
} else { // IPv4 socket
struct sockaddr_in* addr4 = (struct sockaddr_in*)p_addr;
addr4->sin_family = AF_INET; // host byte order

4
drivers/unix/stream_peer_tcp_posix.cpp
View file

@ -98,7 +98,7 @@ Error StreamPeerTCPPosix::_poll_connection(bool p_block) const {
};
struct sockaddr_storage their_addr;
size_t addr_size = _set_sockaddr(&their_addr, peer_host, peer_port);
size_t addr_size = _set_sockaddr(&their_addr, peer_host, peer_port, ip_type);
if (::connect(sockfd, (struct sockaddr *)&their_addr,addr_size) == -1) {
@ -159,7 +159,7 @@ Error StreamPeerTCPPosix::connect(const IP_Address& p_host, uint16_t p_port) {
#endif
struct sockaddr_storage their_addr;
size_t addr_size = _set_sockaddr(&their_addr, p_host, p_port);
size_t addr_size = _set_sockaddr(&their_addr, p_host, p_port, ip_type);
errno = 0;
if (::connect(sockfd, (struct sockaddr *)&their_addr,addr_size) == -1 && errno != EINPROGRESS) {

2
platform/windows/packet_peer_udp_winsock.cpp
View file

@ -74,7 +74,7 @@ Error PacketPeerUDPWinsock::put_packet(const uint8_t *p_buffer,int p_buffer_size
int sock = _get_socket();
ERR_FAIL_COND_V( sock == -1, FAILED );
struct sockaddr_storage addr;
size_t addr_size = _set_sockaddr(&addr, peer_addr, peer_port);
size_t addr_size = _set_sockaddr(&addr, peer_addr, peer_port, ip_type);
_set_blocking(true);

4
platform/windows/stream_peer_winsock.cpp
View file

@ -88,7 +88,7 @@ Error StreamPeerWinsock::_poll_connection(bool p_block) const {
};
struct sockaddr_storage their_addr;
size_t addr_size = _set_sockaddr(&their_addr, peer_host, peer_port);
size_t addr_size = _set_sockaddr(&their_addr, peer_host, peer_port, ip_type);
if (::connect(sockfd, (struct sockaddr *)&their_addr,addr_size) == SOCKET_ERROR) {
@ -318,7 +318,7 @@ Error StreamPeerWinsock::connect(const IP_Address& p_host, uint16_t p_port) {
};
struct sockaddr_storage their_addr;
size_t addr_size = _set_sockaddr(&their_addr, p_host, p_port);
size_t addr_size = _set_sockaddr(&their_addr, p_host, p_port, ip_type);
if (::connect(sockfd, (struct sockaddr *)&their_addr,addr_size) == SOCKET_ERROR) {