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chisel_api.cpp
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/*
Copyright (C) 2013-2014 Draios inc.
This file is part of sysdig.
sysdig is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2 as
published by the Free Software Foundation.
sysdig 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 sysdig. If not, see <http://www.gnu.org/licenses/>.
*/
#include <iostream>
#include <fstream>
#include <cctype>
#include <locale>
#ifdef _WIN32
#include <io.h>
#else
#include <limits.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/ioctl.h>
#endif
#include <third-party/tinydir.h>
#include <json/json.h>
#include "sinsp.h"
#include "sinsp_int.h"
#include "chisel.h"
#include "chisel_api.h"
#include "filter.h"
#include "filterchecks.h"
#ifdef HAS_ANALYZER
#include "analyzer.h"
#endif
#ifdef HAS_CHISELS
#define HAS_LUA_CHISELS
#ifdef HAS_LUA_CHISELS
extern "C" {
#include "lua.h"
#include "lualib.h"
#include "lauxlib.h"
}
#endif
extern vector<chiseldir_info>* g_chisel_dirs;
extern sinsp_filter_check_list g_filterlist;
extern sinsp_evttables g_infotables;
void lua_stackdump(lua_State *L);
///////////////////////////////////////////////////////////////////////////////
// Lua callbacks
///////////////////////////////////////////////////////////////////////////////
#ifdef HAS_LUA_CHISELS
uint32_t lua_cbacks::rawval_to_lua_stack(lua_State *ls, uint8_t* rawval, const filtercheck_field_info* finfo, uint32_t len)
{
ASSERT(rawval != NULL);
ASSERT(finfo != NULL);
switch(finfo->m_type)
{
case PT_INT8:
lua_pushnumber(ls, *(int8_t*)rawval);
return 1;
case PT_INT16:
lua_pushnumber(ls, *(int16_t*)rawval);
return 1;
case PT_INT32:
lua_pushnumber(ls, *(int32_t*)rawval);
return 1;
case PT_INT64:
case PT_ERRNO:
case PT_PID:
case PT_FD:
lua_pushnumber(ls, (double)*(int64_t*)rawval);
return 1;
case PT_L4PROTO: // This can be resolved in the future
case PT_FLAGS8:
case PT_UINT8:
lua_pushnumber(ls, *(uint8_t*)rawval);
return 1;
case PT_PORT: // This can be resolved in the future
case PT_FLAGS16:
case PT_UINT16:
lua_pushnumber(ls, *(uint16_t*)rawval);
return 1;
case PT_FLAGS32:
case PT_UINT32:
case PT_UID:
case PT_GID:
lua_pushnumber(ls, *(uint32_t*)rawval);
return 1;
case PT_UINT64:
case PT_RELTIME:
case PT_ABSTIME:
lua_pushnumber(ls, (double)*(uint64_t*)rawval);
return 1;
case PT_DOUBLE:
lua_pushnumber(ls, *(double*)rawval);
return 1;
case PT_CHARBUF:
case PT_FSPATH:
lua_pushlstring(ls, (char*)rawval, len);
return 1;
case PT_BYTEBUF:
if(rawval[len] == 0)
{
lua_pushlstring(ls, (char*)rawval, len);
return 1;
}
else
{
lua_getglobal(ls, "sichisel");
sinsp_chisel* ch = (sinsp_chisel*)lua_touserdata(ls, -1);
lua_pop(ls, 1);
uint32_t max_len = len < sizeof(ch->m_lua_fld_storage) ?
len : sizeof(ch->m_lua_fld_storage) - 1;
memcpy(ch->m_lua_fld_storage, rawval, max_len);
ch->m_lua_fld_storage[max_len] = 0;
lua_pushlstring(ls, (char*)ch->m_lua_fld_storage, max_len);
return 1;
}
case PT_SOCKADDR:
ASSERT(false);
return 0;
case PT_SOCKFAMILY:
ASSERT(false);
return 0;
case PT_BOOL:
lua_pushboolean(ls, (*(uint32_t*)rawval != 0));
return 1;
case PT_IPV4ADDR:
{
lua_getglobal(ls, "sichisel");
sinsp_chisel* ch = (sinsp_chisel*)lua_touserdata(ls, -1);
lua_pop(ls, 1);
snprintf(ch->m_lua_fld_storage,
sizeof(ch->m_lua_fld_storage),
"%" PRIu8 ".%" PRIu8 ".%" PRIu8 ".%" PRIu8,
rawval[0],
rawval[1],
rawval[2],
rawval[3]);
lua_pushstring(ls, ch->m_lua_fld_storage);
return 1;
}
default:
ASSERT(false);
string err = "wrong event type " + to_string((long long) finfo->m_type);
fprintf(stderr, "%s\n", err.c_str());
throw sinsp_exception("chisel error");
}
}
int lua_cbacks::get_num(lua_State *ls)
{
lua_getglobal(ls, "sievt");
sinsp_evt* evt = (sinsp_evt*)lua_touserdata(ls, -1);
lua_pop(ls, 1);
if(evt == NULL)
{
string err = "invalid call to evt.get_num()";
fprintf(stderr, "%s\n", err.c_str());
throw sinsp_exception("chisel error");
}
lua_pushnumber(ls, (double)evt->get_num());
return 1;
}
int lua_cbacks::get_ts(lua_State *ls)
{
lua_getglobal(ls, "sievt");
sinsp_evt* evt = (sinsp_evt*)lua_touserdata(ls, -1);
lua_pop(ls, 1);
if(evt == NULL)
{
string err = "invalid call to evt.get_ts()";
fprintf(stderr, "%s\n", err.c_str());
throw sinsp_exception("chisel error");
}
uint64_t ts = evt->get_ts();
lua_pushinteger(ls, (uint32_t)(ts / 1000000000));
lua_pushinteger(ls, (uint32_t)(ts % 1000000000));
return 2;
}
int lua_cbacks::get_type(lua_State *ls)
{
lua_getglobal(ls, "sievt");
sinsp_evt* evt = (sinsp_evt*)lua_touserdata(ls, -1);
lua_pop(ls, 1);
if(evt == NULL)
{
string err = "invalid call to evt.get_type()";
fprintf(stderr, "%s\n", err.c_str());
throw sinsp_exception("chisel error");
}
const char* evname;
uint16_t etype = evt->get_type();
if(etype == PPME_GENERIC_E || etype == PPME_GENERIC_X)
{
sinsp_evt_param *parinfo = evt->get_param(0);
ASSERT(parinfo->m_len == sizeof(uint16_t));
uint16_t evid = *(uint16_t *)parinfo->m_val;
evname = g_infotables.m_syscall_info_table[evid].name;
}
else
{
evname = evt->get_name();
}
lua_pushstring(ls, evname);
return 1;
}
int lua_cbacks::get_cpuid(lua_State *ls)
{
lua_getglobal(ls, "sievt");
sinsp_evt* evt = (sinsp_evt*)lua_touserdata(ls, -1);
lua_pop(ls, 1);
if(evt == NULL)
{
string err = "invalid call to evt.get_cpuid()";
fprintf(stderr, "%s\n", err.c_str());
throw sinsp_exception("chisel error");
}
uint32_t cpuid = evt->get_cpuid();
lua_pushinteger(ls, cpuid);
return 1;
}
int lua_cbacks::request_field(lua_State *ls)
{
lua_getglobal(ls, "sichisel");
sinsp_chisel* ch = (sinsp_chisel*)lua_touserdata(ls, -1);
lua_pop(ls, 1);
sinsp* inspector = ch->m_inspector;
const char* fld = lua_tostring(ls, 1);
if(fld == NULL)
{
string err = "chisel requesting nil field";
fprintf(stderr, "%s\n", err.c_str());
throw sinsp_exception("chisel error");
}
sinsp_filter_check* chk = g_filterlist.new_filter_check_from_fldname(fld,
inspector,
false);
if(chk == NULL)
{
string err = "chisel requesting nonexistent field " + string(fld);
fprintf(stderr, "%s\n", err.c_str());
throw sinsp_exception("chisel error");
}
chk->parse_field_name(fld, true, false);
lua_pushlightuserdata(ls, chk);
ch->m_allocated_fltchecks.push_back(chk);
return 1;
}
int lua_cbacks::field(lua_State *ls)
{
lua_getglobal(ls, "sievt");
sinsp_evt* evt = (sinsp_evt*)lua_touserdata(ls, -1);
lua_pop(ls, 1);
if(evt == NULL)
{
string err = "invalid call to evt.field()";
fprintf(stderr, "%s\n", err.c_str());
throw sinsp_exception("chisel error");
}
sinsp_filter_check* chk = (sinsp_filter_check*)lua_topointer(ls, 1);
if(chk == NULL)
{
//
// This happens if the lua code is calling field() without invoking
// sysdig.request_field() before.
//
lua_pushnil(ls);
return 1;
}
uint32_t vlen;
uint8_t* rawval = chk->extract(evt, &vlen);
if(rawval != NULL)
{
return rawval_to_lua_stack(ls, rawval, chk->get_field_info(), vlen);
}
else
{
lua_pushnil(ls);
return 1;
}
}
int lua_cbacks::set_global_filter(lua_State *ls)
{
lua_getglobal(ls, "sichisel");
sinsp_chisel* ch = (sinsp_chisel*)lua_touserdata(ls, -1);
lua_pop(ls, 1);
const char* filter = lua_tostring(ls, 1);
ASSERT(ch);
ASSERT(ch->m_lua_cinfo);
try
{
ch->m_inspector->set_filter(filter);
}
catch(sinsp_exception& e)
{
string err = "invalid filter in chisel " + ch->m_filename + ": " + e.what();
fprintf(stderr, "%s\n", err.c_str());
throw sinsp_exception("chisel error");
}
return 0;
}
int lua_cbacks::set_filter(lua_State *ls)
{
lua_getglobal(ls, "sichisel");
sinsp_chisel* ch = (sinsp_chisel*)lua_touserdata(ls, -1);
lua_pop(ls, 1);
const char* filter = lua_tostring(ls, 1);
ASSERT(ch);
ASSERT(ch->m_lua_cinfo);
try
{
ch->m_lua_cinfo->set_filter(filter);
}
catch(sinsp_exception& e)
{
string err = "invalid filter in chisel " + ch->m_filename + ": " + e.what();
fprintf(stderr, "%s\n", err.c_str());
throw sinsp_exception("chisel error");
}
return 0;
}
int lua_cbacks::set_snaplen(lua_State *ls)
{
lua_getglobal(ls, "sichisel");
sinsp_chisel* ch = (sinsp_chisel*)lua_touserdata(ls, -1);
lua_pop(ls, 1);
const uint32_t snaplen = (uint32_t)lua_tointeger(ls, 1);
ASSERT(ch);
ASSERT(ch->m_lua_cinfo);
ch->m_inspector->set_snaplen(snaplen);
return 0;
}
int lua_cbacks::set_output_format(lua_State *ls)
{
lua_getglobal(ls, "sichisel");
sinsp_chisel* ch = (sinsp_chisel*)lua_touserdata(ls, -1);
lua_pop(ls, 1);
ASSERT(ch);
ASSERT(ch->m_lua_cinfo);
if(ch->m_inspector->get_buffer_format() != sinsp_evt::PF_NORMAL)
{
//
// This means that the user has forced the format on the command line.
// We give that priority and we do nothing.
//
return 0;
}
const char* fmt = lua_tostring(ls, 1);
if(string(fmt) == "normal")
{
ch->m_inspector->set_buffer_format(sinsp_evt::PF_NORMAL);
}
else if(string(fmt) == "json")
{
ch->m_inspector->set_buffer_format(sinsp_evt::PF_JSON);
}
else if(string(fmt) == "simple")
{
ch->m_inspector->set_buffer_format(sinsp_evt::PF_SIMPLE);
}
else if(string(fmt) == "hex")
{
ch->m_inspector->set_buffer_format(sinsp_evt::PF_HEX);
}
else if(string(fmt) == "hexascii")
{
ch->m_inspector->set_buffer_format(sinsp_evt::PF_HEXASCII);
}
else if(string(fmt) == "ascii")
{
ch->m_inspector->set_buffer_format(sinsp_evt::PF_EOLS);
}
else if(string(fmt) == "base64")
{
ch->m_inspector->set_buffer_format(sinsp_evt::PF_BASE64);
}
else if(string(fmt) == "jsonbase64")
{
ch->m_inspector->set_buffer_format(sinsp_evt::PF_JSONBASE64);
}
else
{
string err = "invalid set_output_format value in chisel " + ch->m_filename;
fprintf(stderr, "%s\n", err.c_str());
throw sinsp_exception("chisel error");
}
return 0;
}
int lua_cbacks::set_fatfile_dump_mode(lua_State *ls)
{
lua_getglobal(ls, "sichisel");
sinsp_chisel* ch = (sinsp_chisel*)lua_touserdata(ls, -1);
lua_pop(ls, 1);
int mode = lua_toboolean(ls, 1);
ASSERT(ch);
ASSERT(ch->m_lua_cinfo);
ch->m_inspector->set_fatfile_dump_mode(mode != 0);
return 0;
}
int lua_cbacks::make_ts(lua_State *ls)
{
lua_getglobal(ls, "sichisel");
uint32_t op1 = (uint32_t)lua_tointeger(ls, 1);
lua_pop(ls, 1);
uint32_t op2 = (uint32_t)lua_tointeger(ls, 2);
lua_pop(ls, 1);
uint64_t sum = (uint64_t)op1 * ONE_SECOND_IN_NS + op2;
lua_pushstring(ls, to_string((long long) sum).c_str());
return 1;
}
int lua_cbacks::run_sysdig(lua_State *ls)
{
lua_getglobal(ls, "sichisel");
sinsp_chisel* ch = (sinsp_chisel*)lua_touserdata(ls, -1);
lua_pop(ls, 1);
const char* args = lua_tostring(ls, 1);
ASSERT(ch);
ASSERT(ch->m_lua_cinfo);
ch->m_lua_cinfo->m_has_nextrun_args = true;
ch->m_lua_cinfo->m_nextrun_args = args;
return 0;
}
int lua_cbacks::end_capture(lua_State *ls)
{
lua_getglobal(ls, "sichisel");
sinsp_chisel* ch = (sinsp_chisel*)lua_touserdata(ls, -1);
lua_pop(ls, 1);
ASSERT(ch);
ASSERT(ch->m_lua_cinfo);
ch->m_lua_cinfo->m_end_capture = true;
return 0;
}
int lua_cbacks::is_live(lua_State *ls)
{
lua_getglobal(ls, "sichisel");
sinsp_chisel* ch = (sinsp_chisel*)lua_touserdata(ls, -1);
lua_pop(ls, 1);
ASSERT(ch);
ASSERT(ch->m_lua_cinfo);
lua_pushboolean(ls, ch->m_inspector->is_live());
return 1;
}
int lua_cbacks::is_tty(lua_State *ls)
{
#ifdef _WIN32
int use_color = false;
#else
int use_color = isatty(1);
#endif
lua_pushboolean(ls, use_color);
return 1;
}
int lua_cbacks::get_terminal_info(lua_State *ls)
{
int32_t width = -1;
int32_t height = -1;
#ifndef _WIN32
struct winsize w;
if(ioctl(STDOUT_FILENO, TIOCGWINSZ, &w) != -1)
{
width = w.ws_col;
height = w.ws_row;
}
#endif
lua_newtable(ls);
lua_pushstring(ls, "width");
lua_pushnumber(ls, width);
lua_settable(ls, -3);
lua_pushstring(ls, "height");
lua_pushnumber(ls, height);
lua_settable(ls, -3);
return 1;
}
int lua_cbacks::get_filter(lua_State *ls)
{
lua_getglobal(ls, "sichisel");
sinsp_chisel* ch = (sinsp_chisel*)lua_touserdata(ls, -1);
lua_pop(ls, 1);
ASSERT(ch);
ASSERT(ch->m_inspector);
string flts = ch->m_inspector->get_filter();
lua_pushstring(ls, flts.c_str());
return 1;
}
int lua_cbacks::get_machine_info(lua_State *ls)
{
lua_getglobal(ls, "sichisel");
sinsp_chisel* ch = (sinsp_chisel*)lua_touserdata(ls, -1);
lua_pop(ls, 1);
ASSERT(ch);
ASSERT(ch->m_lua_cinfo);
const scap_machine_info* minfo = ch->m_inspector->get_machine_info();
if(minfo == NULL)
{
string err = "get_machine_info can only be called from the on_capture_start callback";
fprintf(stderr, "%s\n", err.c_str());
throw sinsp_exception("chisel error");
}
lua_newtable(ls);
lua_pushstring(ls, "num_cpus");
lua_pushnumber(ls, minfo->num_cpus);
lua_settable(ls, -3);
lua_pushstring(ls, "memory_size_bytes");
lua_pushnumber(ls, (double)minfo->memory_size_bytes);
lua_settable(ls, -3);
lua_pushstring(ls, "max_pid");
lua_pushnumber(ls, (double)minfo->max_pid);
lua_settable(ls, -3);
lua_pushstring(ls, "hostname");
lua_pushstring(ls, minfo->hostname);
lua_settable(ls, -3);
return 1;
}
int lua_cbacks::get_thread_table(lua_State *ls)
{
threadinfo_map_iterator_t it;
unordered_map<int64_t, sinsp_fdinfo_t>::iterator fdit;
uint32_t j;
sinsp_filter_compiler* compiler = NULL;
sinsp_filter* filter = NULL;
sinsp_evt tevt;
scap_evt tscapevt;
char ipbuf[128];
//
// Get the chisel state
//
lua_getglobal(ls, "sichisel");
sinsp_chisel* ch = (sinsp_chisel*)lua_touserdata(ls, -1);
lua_pop(ls, 1);
ASSERT(ch);
ASSERT(ch->m_lua_cinfo);
ASSERT(ch->m_inspector);
//
// If the caller specified a filter, compile it
//
if(lua_isstring(ls, 1))
{
string filterstr = lua_tostring(ls, 1);
lua_pop(ls, 1);
try
{
compiler = new sinsp_filter_compiler(ch->m_inspector, filterstr, true);
filter = compiler->compile();
}
catch(sinsp_exception& e)
{
string err = "invalid filter argument for get_thread_table in chisel " + ch->m_filename + ": " + e.what();
fprintf(stderr, "%s\n", err.c_str());
throw sinsp_exception("chisel error");
}
tscapevt.ts = 0;
tscapevt.type = PPME_SYSCALL_READ_X;
tscapevt.len = 0;
tevt.m_inspector = ch->m_inspector;
tevt.m_info = &(g_infotables.m_event_info[PPME_SYSCALL_READ_X]);
tevt.m_pevt = NULL;
tevt.m_cpuid = 0;
tevt.m_evtnum = 0;
tevt.m_pevt = &tscapevt;
}
threadinfo_map_t* threadtable = ch->m_inspector->m_thread_manager->get_threads();
ASSERT(threadtable != NULL);
lua_newtable(ls);
for(it = threadtable->begin(); it != threadtable->end(); ++it)
{
//
// Check if there's at least an fd that matches the filter.
// If not, skip this thread
//
sinsp_fdtable* fdtable = it->second.get_fd_table();
if(filter != NULL)
{
bool match = false;
for(fdit = fdtable->m_table.begin(); fdit != fdtable->m_table.end(); ++fdit)
{
tevt.m_tinfo = &(it->second);
tevt.m_fdinfo = &(fdit->second);
tscapevt.tid = it->first;
int64_t tlefd = tevt.m_tinfo->m_lastevent_fd;
tevt.m_tinfo->m_lastevent_fd = fdit->first;
if(filter->run(&tevt))
{
match = true;
break;
}
tevt.m_tinfo->m_lastevent_fd = tlefd;
}
if(!match)
{
continue;
}
}
//
// Set the thread properties
//
lua_newtable(ls);
lua_pushliteral(ls, "tid");
lua_pushnumber(ls, (uint32_t)it->second.m_tid);
lua_settable(ls, -3);
lua_pushliteral(ls, "pid");
lua_pushnumber(ls, (uint32_t)it->second.m_pid);
lua_settable(ls, -3);
lua_pushliteral(ls, "ptid");
lua_pushnumber(ls, (uint32_t)it->second.m_ptid);
lua_settable(ls, -3);
lua_pushliteral(ls, "comm");
lua_pushstring(ls, it->second.m_comm.c_str());
lua_settable(ls, -3);
lua_pushliteral(ls, "exe");
lua_pushstring(ls, it->second.m_exe.c_str());
lua_settable(ls, -3);
lua_pushliteral(ls, "flags");
lua_pushnumber(ls, (uint32_t)it->second.m_flags);
lua_settable(ls, -3);
lua_pushliteral(ls, "fdlimit");
lua_pushnumber(ls, (uint32_t)it->second.m_fdlimit);
lua_settable(ls, -3);
lua_pushliteral(ls, "uid");
lua_pushnumber(ls, (uint32_t)it->second.m_uid);
lua_settable(ls, -3);
lua_pushliteral(ls, "gid");
lua_pushnumber(ls, (uint32_t)it->second.m_gid);
lua_settable(ls, -3);
lua_pushliteral(ls, "nchilds");
lua_pushnumber(ls, (uint32_t)it->second.m_nchilds);
lua_settable(ls, -3);
lua_pushliteral(ls, "vmsize_kb");
lua_pushnumber(ls, (uint32_t)it->second.m_vmsize_kb);
lua_settable(ls, -3);
lua_pushliteral(ls, "vmrss_kb");
lua_pushnumber(ls, (uint32_t)it->second.m_vmrss_kb);
lua_settable(ls, -3);
lua_pushliteral(ls, "vmswap_kb");
lua_pushnumber(ls, (uint32_t)it->second.m_vmswap_kb);
lua_settable(ls, -3);
lua_pushliteral(ls, "pfmajor");
lua_pushnumber(ls, (uint32_t)it->second.m_pfmajor);
lua_settable(ls, -3);
lua_pushliteral(ls, "pfminor");
lua_pushnumber(ls, (uint32_t)it->second.m_pfminor);
lua_settable(ls, -3);
lua_pushliteral(ls, "clone_ts");
lua_pushstring(ls, to_string((long long int)it->second.m_clone_ts).c_str());
lua_settable(ls, -3);
//
// Extract the user name
//
string username;
unordered_map<uint32_t, scap_userinfo*>::const_iterator uit;
const unordered_map<uint32_t, scap_userinfo*>* userlist = ch->m_inspector->get_userlist();
ASSERT(userlist->size() != 0);
if(it->second.m_uid == 0xffffffff)
{
username = "<NA>";
}
else
{
uit = userlist->find(it->second.m_uid);
if(uit == userlist->end())
{
username = "<NA>";
}
else
{
ASSERT(uit->second != NULL);
username = uit->second->name;
}
}
lua_pushliteral(ls, "username");
lua_pushstring(ls, username.c_str());
lua_settable(ls, -3);
//
// Create the arguments sub-table
//
lua_pushstring(ls, "args");
vector<string>* args = &(it->second.m_args);
lua_newtable(ls);
for(j = 0; j < args->size(); j++)
{
lua_pushinteger(ls, j + 1);
lua_pushstring(ls, args->at(j).c_str());
lua_settable(ls, -3);
}
lua_settable(ls,-3);
//
// Create the environment variables sub-table
//
lua_pushstring(ls, "env");
const auto& env = it->second.get_env();
lua_newtable(ls);
for(j = 0; j < env.size(); j++)
{
lua_pushinteger(ls, j + 1);
lua_pushstring(ls, env.at(j).c_str());
lua_settable(ls, -3);
}
lua_settable(ls,-3);
//
// Create and populate the FD table
//
lua_pushstring(ls, "fdtable");
lua_newtable(ls);
for(fdit = fdtable->m_table.begin(); fdit != fdtable->m_table.end(); ++fdit)
{
tevt.m_tinfo = &(it->second);
tevt.m_fdinfo = &(fdit->second);
tscapevt.tid = it->first;
int64_t tlefd = tevt.m_tinfo->m_lastevent_fd;
tevt.m_tinfo->m_lastevent_fd = fdit->first;
if(filter != NULL)
{
if(filter->run(&tevt) == false)
{
continue;
}
}
tevt.m_tinfo->m_lastevent_fd = tlefd;
lua_newtable(ls);
lua_pushliteral(ls, "name");
lua_pushstring(ls, fdit->second.tostring_clean().c_str());
lua_settable(ls, -3);
lua_pushliteral(ls, "type");
lua_pushstring(ls, fdit->second.get_typestring());
lua_settable(ls, -3);
scap_fd_type evt_type = fdit->second.m_type;
if(evt_type == SCAP_FD_IPV4_SOCK || evt_type == SCAP_FD_IPV4_SERVSOCK)
{
uint8_t* pip4;
if(evt_type == SCAP_FD_IPV4_SOCK)
{
// cip
pip4 = (uint8_t*)&(fdit->second.m_sockinfo.m_ipv4info.m_fields.m_sip);
snprintf(ipbuf,
sizeof(ipbuf),
"%" PRIu8 ".%" PRIu8 ".%" PRIu8 ".%" PRIu8,
pip4[0],
pip4[1],
pip4[2],
pip4[3]);
lua_pushliteral(ls, "cip");
lua_pushstring(ls, ipbuf);
lua_settable(ls, -3);
// sip
pip4 = (uint8_t*)&(fdit->second.m_sockinfo.m_ipv4info.m_fields.m_dip);
snprintf(ipbuf,
sizeof(ipbuf),
"%" PRIu8 ".%" PRIu8 ".%" PRIu8 ".%" PRIu8,
pip4[0],
pip4[1],
pip4[2],
pip4[3]);
lua_pushliteral(ls, "sip");
lua_pushstring(ls, ipbuf);
lua_settable(ls, -3);
// cport
lua_pushliteral(ls, "cport");
lua_pushnumber(ls, fdit->second.m_sockinfo.m_ipv4info.m_fields.m_sport);
lua_settable(ls, -3);
// sport
lua_pushliteral(ls, "sport");
lua_pushnumber(ls, fdit->second.m_sockinfo.m_ipv4info.m_fields.m_dport);
lua_settable(ls, -3);
// is_server
lua_pushliteral(ls, "is_server");
lua_pushboolean(ls, fdit->second.is_role_server());
lua_settable(ls, -3);
}
else
{
// sip
pip4 = (uint8_t*)&(fdit->second.m_sockinfo.m_ipv4serverinfo.m_ip);
snprintf(ipbuf,
sizeof(ipbuf),
"%" PRIu8 ".%" PRIu8 ".%" PRIu8 ".%" PRIu8,
pip4[0],
pip4[1],
pip4[2],
pip4[3]);
lua_pushliteral(ls, "sip");
lua_pushstring(ls, ipbuf);
lua_settable(ls, -3);
// sport
lua_pushliteral(ls, "sport");
lua_pushnumber(ls, fdit->second.m_sockinfo.m_ipv4serverinfo.m_port);
lua_settable(ls, -3);
// is_server
lua_pushliteral(ls, "is_server");
lua_pushboolean(ls, 1);
lua_settable(ls, -3);
}
// l4proto
const char* l4ps;
scap_l4_proto l4p = fdit->second.get_l4proto();
switch(l4p)
{
case SCAP_L4_TCP:
l4ps = "tcp";
break;
case SCAP_L4_UDP:
l4ps = "udp";
break;
case SCAP_L4_ICMP:
l4ps = "icmp";
break;
case SCAP_L4_RAW:
l4ps = "raw";
break;
default:
l4ps = "<NA>";
break;
}
// l4proto
lua_pushliteral(ls, "l4proto");
lua_pushstring(ls, l4ps);
lua_settable(ls, -3);
}
// is_server
string l4proto;
lua_rawseti(ls,-2, (uint32_t)fdit->first);
}
lua_settable(ls,-3);
//
// Set the key for this entry
//
lua_rawseti(ls,-2, (uint32_t)it->first);
}
if(filter)
{
delete filter;
}