mirror of
https://github.com/Theldus/alertik.git
synced 2024-11-21 23:43:23 +01:00
92 lines
2.2 KiB
C
92 lines
2.2 KiB
C
/*
|
|
* Alertik: a tiny 'syslog' server & notification tool for Mikrotik routers.
|
|
* This is free and unencumbered software released into the public domain.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include "events.h"
|
|
#include "alertik.h"
|
|
|
|
void handle_wifi_login_attempts(struct log_event *ev);
|
|
|
|
/* Handlers. */
|
|
struct ev_handler handlers[NUM_EVENTS] = {
|
|
/* Failed login attempts. */
|
|
{
|
|
.str = "unicast key exchange timeout",
|
|
.hnd = handle_wifi_login_attempts,
|
|
.evnt_type = EVNT_SUBSTR
|
|
},
|
|
/* Add new handlers here. */
|
|
};
|
|
|
|
///////////////////////////// FAILED LOGIN ATTEMPTS ///////////////////////////
|
|
static int
|
|
parse_login_attempt_msg(const char *msg, char *wifi_iface, char *mac_addr)
|
|
{
|
|
size_t len = strlen(msg);
|
|
size_t tmp = 0;
|
|
size_t at = 0;
|
|
|
|
/* Find '@' and the last ' '. */
|
|
for (at = 0; at < len && msg[at] != '@'; at++) {
|
|
if (msg[at] == ' ')
|
|
tmp = at;
|
|
}
|
|
|
|
if (at == len || !tmp) {
|
|
log_msg("unable to parse additional data, ignoring...\n");
|
|
return -1;
|
|
}
|
|
|
|
memcpy(mac_addr, msg + tmp + 1, MIN(at - tmp - 1, 32));
|
|
|
|
/*
|
|
* Find network name.
|
|
* Assuming that the interface name does not have ':'...
|
|
*/
|
|
for (tmp = at + 1; tmp < len && msg[tmp] != ':'; tmp++);
|
|
if (tmp == len) {
|
|
log_msg("unable to find interface name!, ignoring..\n");
|
|
return -1;
|
|
}
|
|
|
|
memcpy(wifi_iface, msg + at + 1, MIN(tmp - at - 1, 32));
|
|
return (0);
|
|
}
|
|
|
|
void handle_wifi_login_attempts(struct log_event *ev)
|
|
{
|
|
char time_str[32] = {0};
|
|
char mac_addr[32] = {0};
|
|
char wifi_iface[32] = {0};
|
|
char notification_message[2048] = {0};
|
|
|
|
log_msg("> Login attempt detected!\n");
|
|
|
|
if (parse_login_attempt_msg(ev->msg, wifi_iface, mac_addr) < 0)
|
|
return;
|
|
|
|
/* Send our notification. */
|
|
snprintf(
|
|
notification_message,
|
|
sizeof notification_message - 1,
|
|
"%s! %s!, there is someone trying to connect "
|
|
"to your WiFi: %s, with the mac-address: %s, at:%s",
|
|
TELEGRAM_NICKNAME, TELEGRAM_NICKNAME,
|
|
wifi_iface,
|
|
mac_addr,
|
|
get_formatted_time(ev->timestamp, time_str)
|
|
);
|
|
|
|
log_msg("> Retrieved info, MAC: (%s), Interface: (%s)\n", mac_addr, wifi_iface);
|
|
|
|
if (send_telegram_notification(notification_message) < 0) {
|
|
log_msg("unable to send the notification!\n");
|
|
return;
|
|
}
|
|
}
|
|
|
|
////////////////////////////// YOUR HANDLER HERE //////////////////////////////
|