#include "network.h"
#include "tree234.h"
-#ifdef IPV6
#include <ws2tcpip.h>
+#ifdef IPV6
#include <tpipv6.h>
#endif
DECL_WINSOCK_FUNCTION(static, SOCKET, accept,
(SOCKET, struct sockaddr FAR *, int FAR *));
DECL_WINSOCK_FUNCTION(static, int, recv, (SOCKET, char FAR *, int, int));
+DECL_WINSOCK_FUNCTION(static, int, WSAIoctl,
+ (SOCKET, DWORD, LPVOID, DWORD, LPVOID, DWORD,
+ LPDWORD, LPWSAOVERLAPPED,
+ LPWSAOVERLAPPED_COMPLETION_ROUTINE));
static HMODULE winsock_module;
GET_WINSOCK_FUNCTION(ioctlsocket);
GET_WINSOCK_FUNCTION(accept);
GET_WINSOCK_FUNCTION(recv);
+ GET_WINSOCK_FUNCTION(WSAIoctl);
if (p_WSAStartup(winsock_ver, &wsadata)) {
fatalbox("Unable to initialise WinSock");
for (i = 0; (s = index234(sktree, i)) != NULL; i++) {
p_closesocket(s->s);
}
+ freetree234(sktree);
+ sktree = NULL;
}
p_WSACleanup();
return !strcmp(name, "localhost");
}
+static INTERFACE_INFO local_interfaces[16];
+static int n_local_interfaces; /* 0=not yet, -1=failed, >0=number */
+
+static int ipv4_is_local_addr(struct in_addr addr)
+{
+ if (ipv4_is_loopback(addr))
+ return 1; /* loopback addresses are local */
+ if (!n_local_interfaces) {
+ SOCKET s = p_socket(AF_INET, SOCK_DGRAM, 0);
+ DWORD retbytes;
+
+ if (p_WSAIoctl &&
+ p_WSAIoctl(s, SIO_GET_INTERFACE_LIST, NULL, 0,
+ local_interfaces, sizeof(local_interfaces),
+ &retbytes, NULL, NULL) == 0)
+ n_local_interfaces = retbytes / sizeof(INTERFACE_INFO);
+ else
+ logevent(NULL, "Unable to get list of local IP addresses");
+ }
+ if (n_local_interfaces > 0) {
+ int i;
+ for (i = 0; i < n_local_interfaces; i++) {
+ SOCKADDR_IN *address =
+ (SOCKADDR_IN *)&local_interfaces[i].iiAddress;
+ if (address->sin_addr.s_addr == addr.s_addr)
+ return 1; /* this address is local */
+ }
+ }
+ return 0; /* this address is not local */
+}
+
int sk_address_is_local(SockAddr addr)
{
#ifdef IPV6
if (addr->family == AF_INET) {
struct in_addr a;
a.s_addr = p_htonl(addr->address);
- return ipv4_is_loopback(a);
+ return ipv4_is_local_addr(a);
} else {
assert(addr->family == AF_UNSPEC);
return 0; /* we don't know; assume not */
break;
}
- if (s->localhost_only && !ipv4_is_loopback(isa.sin_addr)) {
+ if (s->localhost_only && !ipv4_is_local_addr(isa.sin_addr)) {
p_closesocket(t); /* dodgy WinSock let nonlocal through */
} else if (plug_accepting(s->plug, (void*)t)) {
p_closesocket(t); /* denied or error */