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Don't block local adapter related ips in experimental build.

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Mr_Goldberg
2020-04-30 13:36:59 -04:00
parent 0857125d03
commit 0f6ae7f09e
3 changed files with 56 additions and 0 deletions
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50
dll/base.cpp
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@ -471,6 +471,45 @@ void Auth_Ticket_Manager::Callback(Common_Message *msg)
#ifdef STEAM_WIN32
#include "../detours/detours.h"
struct ips_test {
uint32_t ip_from;
uint32_t ip_to;
};
static std::vector<struct ips_test> adapter_ips;
void set_adapter_ips(uint32_t *from, uint32_t *to, unsigned num_ips)
{
adapter_ips.clear();
for (unsigned i = 0; i < num_ips; ++i) {
struct ips_test ip_a;
PRINT_DEBUG("from: %hhu.%hhu.%hhu.%hhu\n", ((unsigned char *)&from[i])[0], ((unsigned char *)&from[i])[1], ((unsigned char *)&from[i])[2], ((unsigned char *)&from[i])[3]);
PRINT_DEBUG("to: %hhu.%hhu.%hhu.%hhu\n", ((unsigned char *)&to[i])[0], ((unsigned char *)&to[i])[1], ((unsigned char *)&to[i])[2], ((unsigned char *)&to[i])[3]);
ip_a.ip_from = ntohl(from[i]);
ip_a.ip_to = ntohl(to[i]);
if (ip_a.ip_to < ip_a.ip_from) continue;
if ((ip_a.ip_to - ip_a.ip_from) > (1 << 25)) continue;
PRINT_DEBUG("added\n");
adapter_ips.push_back(ip_a);
}
}
static bool is_adapter_ip(unsigned char *ip)
{
uint32_t ip_temp = 0;
memcpy(&ip_temp, ip, sizeof(ip_temp));
ip_temp = ntohl(ip_temp);
for (auto &i : adapter_ips) {
if (i.ip_from <= ip_temp && ip_temp <= i.ip_to) {
PRINT_DEBUG("ADAPTER IP %hhu.%hhu.%hhu.%hhu\n", ip[0], ip[1], ip[2], ip[3]);
return true;
}
}
return false;
}
static bool is_lan_ip(const sockaddr *addr, int namelen)
{
if (!namelen) return false;
@ -480,6 +519,7 @@ static bool is_lan_ip(const sockaddr *addr, int namelen)
unsigned char ip[4];
memcpy(ip, &addr_in->sin_addr, sizeof(ip));
PRINT_DEBUG("CHECK LAN IP %hhu.%hhu.%hhu.%hhu:%u\n", ip[0], ip[1], ip[2], ip[3], ntohs(addr_in->sin_port));
if (is_adapter_ip(ip)) return true;
if (ip[0] == 127) return true;
if (ip[0] == 10) return true;
if (ip[0] == 192 && ip[1] == 168) return true;
@ -755,6 +795,16 @@ BOOL WINAPI DllMain( HINSTANCE, DWORD dwReason, LPVOID ) {
}
return TRUE;
}
#else
void set_adapter_ips(uint32_t *from, uint32_t *to, unsigned num_ips)
{
}
#endif
#else
void set_adapter_ips(uint32_t *from, uint32_t *to, unsigned num_ips)
{
}
#endif