ntopng/src/LuaEngineNetwork.cpp
2024-02-13 17:52:16 +01:00

222 lines
7.5 KiB
C++

/*
*
* (C) 2013-24 - ntop.org
*
*
* This program 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 3 of the License, or
* (at your option) any later version.
*
* This program 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 program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/
#include "ntop_includes.h"
/* ****************************************** */
static int ntop_network_get_network_stats(lua_State *vm) {
NtopngLuaContext *c = getLuaVMContext(vm);
NetworkStats *ns = c ? c->network : NULL;
if (ns) {
lua_newtable(vm);
ns->lua(vm);
} else
lua_pushnil(vm);
return (ntop_lua_return_value(vm, __FUNCTION__, CONST_LUA_OK));
}
/* ****************************************** */
static int ntop_select_local_network(lua_State *vm) {
u_int16_t local_network_id = (u_int16_t)-1;
NetworkInterface *iface = getCurrentInterface(vm);
ntop->getTrace()->traceEvent(TRACE_DEBUG, "%s() called", __FUNCTION__);
if (lua_type(vm, 1) == LUA_TNIL)
local_network_id = (u_int16_t)-1;
else {
if (ntop_lua_check(vm, __FUNCTION__, 1, LUA_TNUMBER) != CONST_LUA_OK)
return (ntop_lua_return_value(vm, __FUNCTION__, CONST_LUA_ERROR));
local_network_id = (u_int16_t)lua_tointeger(vm, 1);
}
if (iface)
getLuaVMUservalue(vm, network) = iface->getNetworkStats(local_network_id);
// lua_pop(vm, 1); /* Cleanup the Lua stack */
lua_pushnil(vm);
return (ntop_lua_return_value(vm, __FUNCTION__, CONST_LUA_OK));
}
/* ****************************************** */
static int ntop_network_get_alerts(lua_State *vm) {
NtopngLuaContext *c = getLuaVMContext(vm);
return ntop_get_alerts(vm, c->network);
}
/* ****************************************** */
static int ntop_network_check_context(lua_State *vm) {
NtopngLuaContext *c = getLuaVMContext(vm);
char *entity_val;
bool ret = false;
ntop->getTrace()->traceEvent(TRACE_DEBUG, "%s() called", __FUNCTION__);
if (ntop_lua_check(vm, __FUNCTION__, 1, LUA_TSTRING) != CONST_LUA_OK)
return (ntop_lua_return_value(vm, __FUNCTION__, CONST_LUA_ERROR));
if ((entity_val = (char *)lua_tostring(vm, 1)) == NULL)
return (ntop_lua_return_value(vm, __FUNCTION__, CONST_LUA_PARAM_ERROR));
if ((c->network == NULL) ||
(strcmp(c->network->getEntityValue().c_str(), entity_val)) != 0) {
NetworkInterface *iface = getCurrentInterface(vm);
u_int16_t network_id = ntop->getLocalNetworkId(entity_val);
if (!iface || (network_id == (u_int16_t)-1) ||
((c->network = iface->getNetworkStats(network_id)) == NULL)) {
ntop->getTrace()->traceEvent(
TRACE_WARNING, "Could not set context for network %s", entity_val);
} else
ret = true;
} else
ret = true;
lua_pushboolean(vm, ret);
return (ntop_lua_return_value(vm, __FUNCTION__, CONST_LUA_OK));
}
/* ****************************************** */
static int ntop_network_get_cached_alert_value(lua_State *vm) {
NtopngLuaContext *c = getLuaVMContext(vm);
NetworkStats *ns = c ? c->network : NULL;
char *key;
std::string val;
ScriptPeriodicity periodicity;
ntop->getTrace()->traceEvent(TRACE_DEBUG, "%s() called", __FUNCTION__);
if (!ns) return (ntop_lua_return_value(vm, __FUNCTION__, CONST_LUA_ERROR));
if (ntop_lua_check(vm, __FUNCTION__, 1, LUA_TSTRING) != CONST_LUA_OK)
return (ntop_lua_return_value(vm, __FUNCTION__, CONST_LUA_ERROR));
if ((key = (char *)lua_tostring(vm, 1)) == NULL)
return (ntop_lua_return_value(vm, __FUNCTION__, CONST_LUA_PARAM_ERROR));
if (ntop_lua_check(vm, __FUNCTION__, 2, LUA_TNUMBER) != CONST_LUA_OK)
return (ntop_lua_return_value(vm, __FUNCTION__, CONST_LUA_ERROR));
if ((periodicity = (ScriptPeriodicity)lua_tointeger(vm, 2)) >=
MAX_NUM_PERIODIC_SCRIPTS)
return (ntop_lua_return_value(vm, __FUNCTION__, CONST_LUA_PARAM_ERROR));
val = ns->getAlertCachedValue(std::string(key), periodicity);
lua_pushstring(vm, val.c_str());
return (ntop_lua_return_value(vm, __FUNCTION__, CONST_LUA_OK));
}
/* ****************************************** */
static int ntop_network_set_cached_alert_value(lua_State *vm) {
NtopngLuaContext *c = getLuaVMContext(vm);
NetworkStats *ns = c ? c->network : NULL;
char *key, *value;
ScriptPeriodicity periodicity;
ntop->getTrace()->traceEvent(TRACE_DEBUG, "%s() called", __FUNCTION__);
if (!ns) return (ntop_lua_return_value(vm, __FUNCTION__, CONST_LUA_ERROR));
if (ntop_lua_check(vm, __FUNCTION__, 1, LUA_TSTRING) != CONST_LUA_OK)
return (ntop_lua_return_value(vm, __FUNCTION__, CONST_LUA_ERROR));
if ((key = (char *)lua_tostring(vm, 1)) == NULL)
return (ntop_lua_return_value(vm, __FUNCTION__, CONST_LUA_PARAM_ERROR));
if (ntop_lua_check(vm, __FUNCTION__, 2, LUA_TSTRING) != CONST_LUA_OK)
return (ntop_lua_return_value(vm, __FUNCTION__, CONST_LUA_ERROR));
if ((value = (char *)lua_tostring(vm, 2)) == NULL)
return (ntop_lua_return_value(vm, __FUNCTION__, CONST_LUA_PARAM_ERROR));
if (ntop_lua_check(vm, __FUNCTION__, 3, LUA_TNUMBER) != CONST_LUA_OK)
return (ntop_lua_return_value(vm, __FUNCTION__, CONST_LUA_ERROR));
if ((periodicity = (ScriptPeriodicity)lua_tointeger(vm, 3)) >=
MAX_NUM_PERIODIC_SCRIPTS)
return (ntop_lua_return_value(vm, __FUNCTION__, CONST_LUA_PARAM_ERROR));
if ((!key) || (!value))
return (ntop_lua_return_value(vm, __FUNCTION__, CONST_LUA_PARAM_ERROR));
ns->setAlertCacheValue(std::string(key), std::string(value), periodicity);
lua_pushnil(vm);
return (ntop_lua_return_value(vm, __FUNCTION__, CONST_LUA_OK));
}
/* ****************************************** */
static int ntop_network_store_triggered_alert(lua_State *vm) {
NtopngLuaContext *c = getLuaVMContext(vm);
return (
ntop_store_triggered_alert(vm, c->network, 1 /* 1st argument of vm */));
}
/* ****************************************** */
static int ntop_network_release_triggered_alert(lua_State *vm) {
NtopngLuaContext *c = getLuaVMContext(vm);
return (ntop_release_triggered_alert(vm, c->network, 1));
}
/* ****************************************** */
static int ntop_network_reset_traffic_between_nets(lua_State *vm) {
#ifdef NTOPNG_PRO
NtopngLuaContext *c = getLuaVMContext(vm);
NetworkStats *ns = c ? c->network : NULL;
if (ns) ns->resetTrafficBetweenNets();
#endif
lua_pushnil(vm);
return (ntop_lua_return_value(vm, __FUNCTION__, CONST_LUA_OK));
}
/* **************************************************************** */
static luaL_Reg _ntop_network_reg[] = {
/* Public User Scripts API, documented at
doc/src/api/lua_c/network_checks/network.lua */
{"select", ntop_select_local_network},
{"getNetworkStats", ntop_network_get_network_stats},
{"resetTrafficBetweenNets", ntop_network_reset_traffic_between_nets},
/* END Public API */
{"getCachedAlertValue", ntop_network_get_cached_alert_value},
{"setCachedAlertValue", ntop_network_set_cached_alert_value},
{"storeTriggeredAlert", ntop_network_store_triggered_alert},
{"releaseTriggeredAlert", ntop_network_release_triggered_alert},
{"getAlerts", ntop_network_get_alerts},
{"checkContext", ntop_network_check_context},
{NULL, NULL}};
luaL_Reg *ntop_network_reg = _ntop_network_reg;