mirror of
https://github.com/kasmtech/KasmVNC.git
synced 2024-11-23 00:23:13 +01:00
62 lines
1.6 KiB
C++
62 lines
1.6 KiB
C++
/* Copyright (C) 2021 Kasm
|
|
*
|
|
* This is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This software is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this software; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
|
|
* USA.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include <config.h>
|
|
#endif
|
|
|
|
#include <arpa/inet.h>
|
|
#include <errno.h>
|
|
#include <netinet/tcp.h>
|
|
#include <netdb.h>
|
|
#include <time.h>
|
|
|
|
#include <map>
|
|
#include <string>
|
|
|
|
#include <network/Blacklist.h>
|
|
#include <rfb/Blacklist.h>
|
|
|
|
static std::map<std::string, unsigned> hits;
|
|
static std::map<std::string, time_t> blacklist;
|
|
|
|
unsigned char bl_isBlacklisted(const char *addr) {
|
|
const unsigned char count = blacklist.count(addr);
|
|
if (!count)
|
|
return 0;
|
|
|
|
const time_t now = time(NULL);
|
|
const unsigned timeout = rfb::Blacklist::initialTimeout;
|
|
|
|
if (now - timeout > blacklist[addr]) {
|
|
blacklist.erase(addr);
|
|
hits.erase(addr);
|
|
return 0;
|
|
} else {
|
|
blacklist[addr] = now;
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
void bl_addFailure(const char *addr) {
|
|
const unsigned num = ++hits[addr];
|
|
if (num >= (unsigned) rfb::Blacklist::threshold) {
|
|
blacklist[addr] = time(NULL);
|
|
}
|
|
}
|