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Fix Windows XP compatibility

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GetIpForwardTable2 is not available on Windows versions prior to Vista.
Use GetProcAddress to call it when it's available while avoiding
crashing on XP.
This commit is contained in:
Spencer McIntyre 2023-02-27 15:19:50 -05:00
parent bf7e5cb7c6
commit f402d7cb9e
1 changed files with 11 additions and 3 deletions

14
c/meterpreter/source/extensions/stdapi/server/net/config/route.c

@ -3,6 +3,8 @@
#include "common_metapi.h"
#include <netioapi.h>
typedef NETIO_STATUS(NETIOAPI_API_* GETIPFORWARDTABLE2)(ADDRESS_FAMILY Family, PMIB_IPFORWARD_TABLE2* Table);
typedef struct v6netmask
{
unsigned int mask[4];
@ -111,12 +113,18 @@ DWORD request_net_config_get_routes(Remote *remote, Packet *packet)
route, 5);
}
if (GetIpForwardTable2(AF_INET6, &table_ipv6) != NO_ERROR) {
v6netmask v6_mask;
MIB_IPINTERFACE_ROW iface = { .Family = AF_INET6 };
GETIPFORWARDTABLE2 pGetIpForwardTable2 = (GETIPFORWARDTABLE2)GetProcAddress(GetModuleHandle(TEXT("Iphlpapi.dll")), "GetIpForwardTable2");
// GetIpForwardTable2 is only available on Windows Vista and later.
if (!pGetIpForwardTable2) {
break;
}
if (pGetIpForwardTable2(AF_INET6, &table_ipv6) != NO_ERROR) {
BREAK_ON_ERROR("[NET] request_net_config_get_routes: GetIpForwardTable2 failed");
}
v6netmask v6_mask;
MIB_IPINTERFACE_ROW iface = { .Family = AF_INET6 };
// Enumerate it
for (index = 0;
index < table_ipv6->NumEntries;