Commit 791bc592 authored by Jondy Zhao's avatar Jondy Zhao

Use IN6ADDR_ANY as ipv6 blackhole gateway instead IN6ADDR_LOOPBACK.

parent 582eb114
......@@ -196,3 +196,6 @@ Notes
format to specify interface index in the link local address:
fe80::2ff:38ff:fed8:7d97%11
10. For ipv4, blackhole route doesn't work now. I can't find a simple
way to do it in the Windows.
\ No newline at end of file
......@@ -24,6 +24,7 @@
#include <stdio.h>
#include <unistd.h>
#include <wchar.h>
#include <assert.h>
#define INSIDE_BABELD_CYGINET
#include "cyginet.h"
......@@ -861,7 +862,6 @@ cyginet_blackhole_index(struct in6_addr* addr6, char * addr)
}
FREE(pAdaptAddr);
}
return dwReturn;
}
......@@ -959,7 +959,6 @@ libwinet_edit_route_entry(const struct sockaddr *dest,
else {
MIB_IPFORWARDROW Row;
unsigned long Res;
struct in_addr mask;
plen2mask(plen, &mask);
......@@ -972,12 +971,12 @@ libwinet_edit_route_entry(const struct sockaddr *dest,
Row.dwForwardMask = mask.S_un.S_addr;
/*
* MIB_IPROUTE_TYPE_DIRECT <==> dwForwardNextHop == dwForwardDest
* MIB_IPROUTE_TYPE_LOCAL <==> dwForwardNextHop in local interfaces
* MIB_IPROUTE_TYPE_INDIRECT all the others
* Refer to:
* http://technet.microsoft.com/en-us/library/dd379495(v=ws.10).aspx
*/
Row.dwForwardType = Row.dwForwardNextHop == Row.dwForwardDest ? \
Row.dwForwardType = (Row.dwForwardNextHop == Row.dwForwardDest) ?
MIB_IPROUTE_TYPE_DIRECT : MIB_IPROUTE_TYPE_INDIRECT;
Row.dwForwardType = MIB_IPROUTE_TYPE_INDIRECT;
Row.dwForwardProto = MIB_IPPROTO_NETMGMT;
Row.dwForwardAge = 0;
Row.dwForwardNextHopAS = 0;
......@@ -1533,7 +1532,6 @@ cyginet_dump_route_table(struct cyginet_route *routes, int maxroutes)
proute -> metric = pRow -> dwForwardMetric1;
proute -> proto = pRow -> dwForwardProto;
proute -> plen = mask2len((unsigned char*)&(pRow -> dwForwardMask), 4);
/* Note that the IPv4 addresses returned in GetIpForwardTable
* entries are in network byte order
*/
......@@ -1685,37 +1683,102 @@ cyginet_ifname(const char * guidname)
return NULL;
}
int
cyginet_add_ipentry(int ifindex, struct sockaddr *addr)
static int
libwinet_edit_netentry(int operation,
int ifindex,
struct sockaddr *addr,
int type)
{
MIB_IPNETROW row;
PLIBWINET_INTERFACE_MAP_TABLE p;
if (!g_interface_map_table)
libwinet_refresh_interface_map_table();
p = g_interface_map_table;
while (p) {
if (p -> IfIndex == ifindex) {
row.dwPhysAddrLen = p -> PhysicalAddressLength;
if (row.dwPhysAddrLen > MAXLEN_PHYSADDR)
MIB_IPNETROW row = {0};
DWORD dwRetVal = NO_ERROR;
DWORD dest = (((SOCKADDR_IN*)addr) -> sin_addr).S_un.S_addr;
if (operation == 1) {
/* We need send an arp request to get mac address */
/* TO DO: src should be address assigned to ifindex */
DWORD src = 0;
if (type != MIB_IPNET_TYPE_INVALID) {
dwRetVal = SendARP(dest, src, (PULONG)row.bPhysAddr, &row.dwPhysAddrLen);
if (dwRetVal != NO_ERROR)
return -1;
memcpy(row.bPhysAddr, p -> PhysicalAddress, row.dwPhysAddrLen);
break;
}
p = p -> next;
}
if (row.dwPhysAddrLen) {
row.dwIndex = ifindex;
row.dwAddr = (((SOCKADDR_IN*)addr) -> sin_addr).S_un.S_addr;
row.dwAddr = dest;
row.dwType = MIB_IPNET_TYPE_DYNAMIC;
return CreateIpNetEntry ( &row );
dwRetVal = CreateIpNetEntry ( &row );
}
return -1;
else if (operation == 0) {
row.dwIndex = ifindex;
row.dwAddr = dest;
dwRetVal = DeleteIpNetEntry(&row);
}
else assert(0);
return 0 ? dwRetVal == NO_ERROR : dwRetVal;
}
/* The following functions are reserved. */
#if 0
int
cyginet_search_netentry(int add, int ifindex, struct sockaddr *addr)
{
MIB_IPNETROW row = {0};
MIB_IPNETTABLE * ptable;
MIB_IPNETROW * prow = NULL;
DWORD dwSize;
DWORD dwRetVal = NO_ERROR;
DWORD dest = (((SOCKADDR_IN*)addr) -> sin_addr).S_un.S_addr;
DWORD n;
ptable = (MIB_IPNETTABLE *) MALLOC(sizeof (MIB_IPNETTABLE));
if (ptable == NULL)
return -1;
/* Make an initial call to get the necessary size into dwSize */
dwSize = sizeof (MIB_IPNETTABLE);
if (GetIpNetTable(ptable, &dwSize, FALSE) == ERROR_INSUFFICIENT_BUFFER) {
FREE(ptable);
ptable = (MIB_IPNETTABLE *) MALLOC(dwSize);
if (ptable == NULL)
return -1;
}
/* Make a second call to get the actual data we want. */
if ((dwRetVal = GetIpNetTable(ptable, &dwSize, FALSE)) != NO_ERROR) {
FREE(ptable);
return -1;
}
/* Search entry in the table */
prow = ptable -> table;
for (n = 0; n < ptable -> dwNumEntries; n++, prow++)
if ( prow -> dwAddr == dest)
break;
if (add) {
if (!prow) {
/* We need send an arp request to get mac address */
/* TO DO: src should be address assigned to ifindex */
DWORD src = 0;
dwRetVal = SendARP(dest, src, (PULONG)row.bPhysAddr, &row.dwPhysAddrLen);
if (dwRetVal != NO_ERROR) {
FREE(ptable);
return -1;
}
row.dwIndex = ifindex;
row.dwAddr = dest;
row.dwType = MIB_IPNET_TYPE_DYNAMIC;
dwRetVal = CreateIpNetEntry ( &row );
}
}
else {
if (prow)
dwRetVal = DeleteIpNetEntry(prow);
}
FREE(ptable);
return 0 ? dwRetVal == NO_ERROR : dwRetVal;
}
char *
cyginet_ipv4_index2ifname(int ifindex)
{
......@@ -2432,52 +2495,6 @@ DWORD GetConnectedNetworks()
/* ------------------------------------------------------------- */
#ifdef TEST_CYGINET
// The following #defines are from routprot.h in the Platform Software Develoment Kit (SDK)
#define PROTO_TYPE_UCAST 0
#define PROTOCOL_ID(Type, VendorId, ProtocolId) \
(((Type & 0x03)<<30)|((VendorId & 0x3FFF)<<16)|(ProtocolId & 0xFFFF))
#define PROTO_VENDOR_ID 0x3FAA
DWORD (WINAPI * fRtmRegisterEntity)(PRTM_ENTITY_INFO,PRTM_ENTITY_EXPORT_METHODS,
RTM_EVENT_CALLBACK,WINBOOL,PRTM_REGN_PROFILE,PRTM_ENTITY_HANDLE);
DWORD (WINAPI * fRtmDeregisterEntity)(RTM_ENTITY_HANDLE);
int test_rtm2()
{
HMODULE lib;
if ((lib = LoadLibraryW(L"rtm.dll"))) {
fRtmRegisterEntity = GetProcAddress(lib, (LPCSTR)"RtmRegisterEntity");
fRtmDeregisterEntity = GetProcAddress(lib, (LPCSTR)"RtmDeregisterEntity");
FreeLibrary(lib);
}
else
return -1;
RTM_ENTITY_HANDLE RtmRegHandle;
RTM_ENTITY_INFO EntityInfo;
RTM_REGN_PROFILE RegnProfile;
DWORD dwRet = ERROR_SUCCESS;
EntityInfo.RtmInstanceId = 0;
EntityInfo.AddressFamily = AF_INET;
EntityInfo.EntityId.EntityProtocolId = PROTO_IP_OTHER;
EntityInfo.EntityId.EntityInstanceId = PROTOCOL_ID(PROTO_TYPE_UCAST, PROTO_VENDOR_ID, PROTO_IP_OTHER);
// Register the new entity
dwRet = fRtmRegisterEntity(&EntityInfo, NULL, NULL, FALSE, &RegnProfile, &RtmRegHandle);
if (dwRet != ERROR_SUCCESS){
// Registration failed - Log an Error and Quit
return -1;
}
// Clean-up: Deregister the new entity
dwRet = fRtmDeregisterEntity(RtmRegHandle);
if (dwRet != ERROR_SUCCESS){
// Registration failed - Log an Error and Quit
return -1;
}
return 0;
}
VOID PrintAllInterfaces()
{
IP_ADAPTER_ADDRESSES *pAdaptAddr = NULL;
......@@ -2755,6 +2772,15 @@ runTestCases()
}
}
printf("\n\nTest cyginet_dump_route_table:\n\n");
do {
#define MAX_ROUTES 120
struct cyginet_route routes[MAX_ROUTES];
memset(routes, 0, sizeof(struct cyginet_route) * MAX_ROUTES);
int n = cyginet_dump_route_table(routes, MAX_ROUTES);
printf("Get route numbers: %d\n", n);
} while (0);
printf("\n\nTest libwinet_monitor_route_thread_proc:\n\n");
do {
int mypipes[2];
......@@ -2923,6 +2949,7 @@ runTestCases()
printf("Delete Ipv6 route return %d\n", n);
} while(0);
}
int main(int argc, char* argv[])
......@@ -2976,6 +3003,27 @@ int main(int argc, char* argv[])
printf("libwinet_refresh_interface_map_table failed\n");
}
printf("\n\nTest ipv4 blackhole route:\n\n");
do {
SOCKADDR_IN dest = { AF_INET, 0, {{{ INADDR_ANY }}}, {0} };
SOCKADDR_IN gate = { AF_INET, 0, {{{ INADDR_ANY }}}, {0} };
int ifindex = 1;
int n;
if (inet_pton(AF_INET, "123.58.180.0", &dest.sin_addr) != 1)
break;
if (inet_pton(AF_INET, "127.0.0.1", &gate.sin_addr) != 1)
break;
n = libwinet_edit_route_entry((struct sockaddr*)&dest,
24,
(struct sockaddr*)&gate,
ifindex,
1,
RTM_ADD
);
printf("Add blackhole route return: %d", n);
} while(0);
runTestCases();
/* printf("\n\nTest libwinet_init_ipv6_interface:\n\n"); */
......
......@@ -90,6 +90,10 @@
IPv6 Addresses, it explains the relation between link-local address
and interface id
http://msdn.microsoft.com/en-us/library/aa921042.aspx
TCP/IP (v4 and v6) Technical Reference, it shows ipv4 and ipv6 how
to work in the windows. (Recommended)
http://technet.microsoft.com/en-us/library/dd379473(v=ws.10).aspx
*/
#ifndef __CYGIFNET_H__
......@@ -220,8 +224,6 @@ int cyginet_delete_route_entry(const struct sockaddr *, unsigned short,
int cyginet_update_route_entry(const struct sockaddr *, unsigned short,
const struct sockaddr *, int , unsigned int);
int cyginet_add_ipentry(int, struct sockaddr*);
char * cyginet_ifname(const char *);
char * cyginet_guidname(const char *);
int cyginet_refresh_interface_table();
......
......@@ -305,8 +305,10 @@ kernel_route(int operation, const unsigned char *dest, unsigned short plen,
const unsigned char *newgate, int newifindex,
unsigned int newmetric)
{
char blackhole_addr6[1][1][16] = {{{0}}};
char blackhole_addr[1][1][16] = {{{0}}};
char local6[1][1][16] = {{IN6ADDR_ANY_INIT}};
char local4[1][1][16] =
{{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x7f, 0x00, 0x00, 0x01 }}};
int rc, ipv4;
int route_ifindex;
int prefix_len;
......@@ -353,8 +355,6 @@ kernel_route(int operation, const unsigned char *dest, unsigned short plen,
IN6_IS_ADDR_UNSPECIFIED(newgate))
return 0;
kdebugf("kernel_route: %s %s/%d metric %d dev %d nexthop %s\n",
operation == ROUTE_ADD ? "add" :
operation == ROUTE_FLUSH ? "flush" : "change",
......@@ -390,21 +390,24 @@ kernel_route(int operation, const unsigned char *dest, unsigned short plen,
if(ipv4) {
PUSHADDR(destination, dest);
if (metric == KERNEL_INFINITY)
PUSHADDR(gateway, **blackhole_addr);
else if(plen == 128 && memcmp(dest+12, gate+12, 4) == 0) {
/* It means add arp record, add dest ip to this interface */
if (cyginet_add_ipentry(ifindex,
(struct sockaddr*)&destination) != 0)
if (metric == KERNEL_INFINITY) {
/* blackhole route, now it doesn't work */
kdebugf("Error: ipv4 blackhole route doesn't work.\n");
return -1;
assert (operation != ROUTE_MODIFY);
PUSHADDR(gateway, **local4);
}
else if(plen == 128 && memcmp(dest+12, gate+12, 4) == 0) {
assert (operation != ROUTE_MODIFY);
PUSHADDR(gateway, gate); /* MIB_IPROUTE_TYPE_DIRECT */
}
else
PUSHADDR(gateway, gate);
PUSHADDR(gateway, gate); /* MIB_IPROUTE_TYPE_INDIRECT */
} else {
PUSHADDR6(destination, dest);
if (metric == KERNEL_INFINITY)
PUSHADDR6(gateway, **blackhole_addr6);
PUSHADDR6(gateway, **local6);
else
PUSHADDR6(gateway, gate);
}
......
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