-#include <iostream>
+/* $Id$
+
+This file is part of NetVis
+Copyright @ 2008 Mikko Rasa, Mikkosoft Productions
+Distributed unter the GPL
+*/
+
+#include <limits>
+#include <cstdlib>
+#include <cmath>
+#include <signal.h>
+#include <netinet/ether.h>
#include <netinet/ip.h>
#include <netinet/tcp.h>
#include <netinet/udp.h>
-#include <linux/if_ether.h>
#include <msp/core/except.h>
+#include <msp/debug/profilingscope.h>
+#include <msp/gl/blend.h>
+#include <msp/gl/framebuffer.h>
#include <msp/gl/immediate.h>
#include <msp/gl/matrix.h>
#include <msp/gl/misc.h>
#include <msp/gl/texture2d.h>
#include <msp/gl/transform.h>
#include <msp/strings/formatter.h>
+#include <msp/time/units.h>
#include <msp/time/utils.h>
+#include "history.h"
#include "host.h"
#include "netvis.h"
#include "packet.h"
+#include "port.h"
+#include "resolver.h"
using namespace std;
using namespace Msp;
-NetVis::NetVis(int /*argc*/, char **argv)
+NetVis::NetVis(int argc, char **argv):
+ pcap(0),
+ resolver(0),
+ wnd(0),
+ font(0),
+ max_hosts(1000),
+ max_visible_hosts(30),
+ frames(0)
{
- iface=argv[1];
-}
+ if(argc<2)
+ throw UsageError("No interface given");
+ iface = argv[1];
-int NetVis::main()
-{
char err[1024];
- pcap=pcap_open_live(iface.c_str(), 128, true, 0, err);
+ pcap = pcap_open_live(iface.c_str(), 128, true, 0, err);
if(!pcap)
throw Exception(err);
if(pcap_setnonblock(pcap, true, err)==-1)
throw Exception(err);
- dpy=new Graphics::Display;
- wnd=new Graphics::Window(*dpy, 1024, 768);
- glc=new Graphics::GLContext(*wnd);
+ pcap_lookupnet(iface.c_str(), &localnet, &localnet_mask, err);
+ localnet = ntohl(localnet);
+ localnet_mask = ntohl(localnet_mask);
+
+ resolver = new Resolver;
+
+ wnd = new Graphics::SimpleGLWindow(1024, 768);
wnd->set_title("NetVis");
+ wnd->signal_close.connect(sigc::bind(sigc::mem_fun(this, &NetVis::exit), 0));
wnd->show();
- GL::enable(GL_BLEND);
- glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ GL::enable(GL::BLEND);
+ GL::blend_func(GL::SRC_ALPHA, GL::ONE_MINUS_SRC_ALPHA);
- font=new GL::Font;
+ font = new GL::Font;
DataFile::load(*font, "dejavu-10.font");
- font_tex=new GL::Texture2D;
- DataFile::load(*font_tex, "dejavu-10.tex");
- font->set_texture(*font_tex);
- Application::main();
+ history = new History(*this, 301, 100);
+
+ catch_signal(SIGINT);
+}
+
+NetVis::~NetVis()
+{
+ delete resolver;
- delete glc;
+ delete font;
delete wnd;
- delete dpy;
- return exit_code;
+ pcap_close(pcap);
+ for(map<unsigned, Host *>::iterator i=hosts.begin(); i!=hosts.end(); ++i)
+ delete i->second;
+ for(map<unsigned, Host *>::iterator i=disabled_hosts.begin(); i!=disabled_hosts.end(); ++i)
+ delete i->second;
+ for(map<unsigned, Port *>::iterator i=ports.begin(); i!=ports.end(); ++i)
+ delete i->second;
+ for(list<Packet *>::iterator i=packets.begin(); i!=packets.end(); ++i)
+ delete *i;
}
void NetVis::tick()
{
- Msp::Time::TimeStamp t=Msp::Time::now();
- if(!last_tick)
- last_tick=t;
- Msp::Time::TimeDelta dt=t-last_tick;
- last_tick=t;
+ Msp::Time::TimeStamp t = Msp::Time::now();
+ Msp::Time::TimeDelta dt;
+ if(tick_t)
+ dt = t-tick_t;
+ tick_t = t;
- dpy->tick();
+ if(tick_t>fps_t+Msp::Time::sec)
+ {
+ fps = frames/((tick_t-fps_t)/Msp::Time::sec);
+ fps_t = tick_t;
+ frames = 0;
+ }
- pcap_dispatch(pcap, -1, &capture_handler, reinterpret_cast<unsigned char *>(this));
+ wnd->get_display().tick();
- glClear(GL_COLOR_BUFFER_BIT);
+ while(pcap_dispatch(pcap, -1, &capture_handler, reinterpret_cast<unsigned char *>(this))>0) ;
+
+ resolver->tick();
+ history->tick(tick_t);
- GL::matrix_mode(GL::PROJECTION);
- GL::load_identity();
- GL::ortho_centered(1024, 768);
- GL::matrix_mode(GL::MODELVIEW);
- GL::load_identity();
+ float min_activity = numeric_limits<float>::max();
for(map<unsigned, Host *>::iterator i=hosts.begin(); i!=hosts.end(); ++i)
{
i->second->tick(dt);
- i->second->render();
+ min_activity = min(min_activity, i->second->get_activity());
}
+ float del_limit = pow(10, 6-0.1*(max_hosts-hosts.size()-disabled_hosts.size()));
+ for(map<unsigned, Host *>::iterator i=disabled_hosts.begin(); i!=disabled_hosts.end();)
+ {
+ i->second->tick(dt);
+
+ if(i->second->get_activity()>min_activity)
+ {
+ i->second->set_active(true);
+ hosts.insert(*i);
+ for(unsigned j=0; j<100; ++j)
+ i->second->tick(100*Time::msec);
+ disabled_hosts.erase(i++);
+ }
+ else if(i->second->get_activity()<del_limit)
+ {
+ delete i->second;
+ disabled_hosts.erase(i++);
+ }
+ else
+ ++i;
+ }
+
+ if(hosts.size()>max_visible_hosts)
+ {
+ list<float> activity;
+ for(map<unsigned, Host *>::iterator i=hosts.begin(); i!=hosts.end(); ++i)
+ activity.push_back(i->second->get_activity());
+ activity.sort();
+
+ list<float>::iterator j = activity.begin();
+ advance(j, activity.size()-max_visible_hosts);
+ float limit = *j;
+
+ for(map<unsigned, Host *>::iterator i=hosts.begin(); i!=hosts.end();)
+ {
+ if(i->second->get_activity()<limit)
+ {
+ i->second->set_active(false);
+ disabled_hosts.insert(*i);
+ hosts.erase(i++);
+ }
+ else
+ ++i;
+ }
+ }
+
for(list<Packet *>::iterator i=packets.begin(); i!=packets.end();)
{
(*i)->tick(dt);
- (*i)->render();
if((*i)->get_stale())
{
delete *i;
- i=packets.erase(i);
+ i = packets.erase(i);
}
else
++i;
}
- GL::translate(-500, 360, 0);
- for(map<unsigned, GL::Color>::iterator i=port_colors.begin(); i!=port_colors.end(); ++i)
- {
- GL::Color &color=i->second;
+ render();
+ wnd->swap_buffers();
- GL::push_matrix();
+ ++frames;
+}
+
+void NetVis::render()
+{
+ GL::clear(GL::COLOR_BUFFER_BIT);
- GL::Immediate imm((GL::COLOR4_UBYTE,GL::VERTEX2));
+ GL::matrix_mode(GL::PROJECTION);
+ GL::load_identity();
+ GL::ortho_centered(1024, 768);
+ GL::matrix_mode(GL::MODELVIEW);
+ GL::load_identity();
+
+ for(map<unsigned, Host *>::iterator i=hosts.begin(); i!=hosts.end(); ++i)
+ i->second->render();
+ {
+ GL::Immediate imm((GL::COLOR4_UBYTE, GL::VERTEX2));
imm.begin(GL::QUADS);
- imm.color(color.r, color.g, color.b, color.a);
- for(float x=0; x<0.5; x+=0.2)
- {
- imm.vertex(x+0, 0);
- imm.vertex(x+10, 0);
- imm.vertex(x+10, 10);
- imm.vertex(x+0, 10);
- }
+ for(list<Packet *>::iterator i=packets.begin(); i!=packets.end(); ++i)
+ (*i)->render(imm);
imm.end();
+ }
- GL::translate(15, 1, 0);
- GL::scale_uniform(10);
- glColor4f(1.0, 1.0, 1.0, 1.0);
- font->draw_string(format("%d", i->first));
- GL::Texture::unbind();
-
- GL::pop_matrix();
+ GL::push_matrix();
+ GL::translate(-500, 360, 0);
+ unsigned n = 0;
+ for(map<unsigned, Port *>::iterator i=ports.begin(); (i!=ports.end() && n<50); ++i, ++n)
+ {
+ i->second->render();
GL::translate(0, -12, 0);
}
+ GL::pop_matrix();
+
+ GL::push_matrix();
+ GL::translate(-500, -360, 0);
+ GL::scale_uniform(10);
+ font->draw_string(format("%d hosts", hosts.size()+disabled_hosts.size()));
+ GL::translate(0, -1.2, 0);
+ font->draw_string(format("%.2f fps", fps));
+ GL::Texture::unbind();
+ GL::pop_matrix();
- glc->swap_buffers();
+ GL::push_matrix();
+ GL::translate(170, -370, 0);
+ history->render();
+ GL::pop_matrix();
}
Host &NetVis::get_host(unsigned a)
{
- map<unsigned, Host *>::iterator i=hosts.find(a);
+ map<unsigned, Host *>::iterator i = hosts.find(a);
if(i!=hosts.end())
return *i->second;
- Host *host=new Host(*this, a);
- host->set_position(Vector2(rand()*30.0/RAND_MAX-15.0, rand()*20.0/RAND_MAX-10.0));
- hosts[a]=host;
+ i = disabled_hosts.find(a);
+ if(i!=disabled_hosts.end())
+ return *i->second;
+
+ Host *host = new Host(*this, a);
+ if((a&localnet_mask)==localnet)
+ host->set_local(true);
+ resolver->push(host);
+ host->set_position(Vector2(rand()*400.0/RAND_MAX-200.0, rand()*400.0/RAND_MAX-200.0));
+ for(unsigned j=0; j<100; ++j)
+ host->tick(100*Time::msec);
+ hosts[a] = host;
return *host;
}
-GL::Color &NetVis::get_port_color(unsigned port)
+const Port &NetVis::get_port(unsigned number)
{
- map<unsigned, GL::Color>::iterator i=port_colors.find(port);
- if(i!=port_colors.end())
- return i->second;
-
- GL::Color color;
- while(1)
- {
- color.r=rand()*1.0/RAND_MAX;
- color.g=rand()*1.0/RAND_MAX;
- color.b=rand()*1.0/RAND_MAX;
- if(color.r>0.5 || color.g>0.5 || color.b>0.7)
- break;
- }
- color.a=0.4f;
- return port_colors[port]=color;
+ map<unsigned, Port *>::iterator i = ports.find(number);
+ if(i!=ports.end())
+ return *i->second;
+ Port *port = new Port(*this, number);
+ ports[number] = port;
+ return *port;
}
void NetVis::capture_handler(unsigned char *user, const pcap_pkthdr *, const unsigned char *data)
{
- NetVis *self=reinterpret_cast<NetVis *>(user);
+ NetVis *self = reinterpret_cast<NetVis *>(user);
- const ethhdr *eth=reinterpret_cast<const ethhdr *>(data);
+ const ethhdr *eth = reinterpret_cast<const ethhdr *>(data);
if(ntohs(eth->h_proto)==ETH_P_IP)
{
- const iphdr *ip=reinterpret_cast<const iphdr *>(eth+1);
+ const iphdr *ip = reinterpret_cast<const iphdr *>(eth+1);
- //cout<<"IP packet of "<<hdr->len<<'/'<<ntohs(ip->tot_len)<<" bytes\n";
-
- unsigned port=0;
+ unsigned size = ntohs(ip->tot_len);
+ unsigned port = 0;
if(ip->protocol==IPPROTO_TCP)
{
- const tcphdr *tcp=reinterpret_cast<const tcphdr *>(ip+1);
- port=min(ntohs(tcp->source), ntohs(tcp->dest));
+ const tcphdr *tcp = reinterpret_cast<const tcphdr *>(ip+1);
+ port = min(ntohs(tcp->source), ntohs(tcp->dest));
}
else if(ip->protocol==IPPROTO_UDP)
{
- const udphdr *udp=reinterpret_cast<const udphdr *>(ip+1);
- port=min(ntohs(udp->source), ntohs(udp->dest));
+ const udphdr *udp = reinterpret_cast<const udphdr *>(ip+1);
+ port = min(ntohs(udp->source), ntohs(udp->dest));
}
- Host &shost=self->get_host(ntohl(ip->saddr));
- Host *dhost=0;
+ Host &shost = self->get_host(ntohl(ip->saddr));
+ Host *dhost = 0;
if((ntohl(ip->daddr)&0xFF)!=0xFF)
- dhost=&self->get_host(ntohl(ip->daddr));
- self->packets.push_back(new Packet(shost, dhost, self->get_port_color(port), ntohs(ip->tot_len)));
+ dhost = &self->get_host(ntohl(ip->daddr));
+
+ float throttle = shost.send_packet();
+ if(throttle<1)
+ {
+ self->packets.push_back(new Packet(shost, dhost, self->get_port(port).get_color(), size));
+ self->packets.back()->tick(-throttle*Msp::Time::sec);
+ }
+
+ shost.add_activity(size);
+ if(dhost)
+ dhost->add_activity(size);
+
+ if((ntohl(ip->saddr)&self->localnet_mask)==self->localnet)
+ self->history->activity(0, size);
+ else if((ntohl(ip->daddr)&self->localnet_mask)==self->localnet)
+ self->history->activity(size, 0);
}
}
+void NetVis::sighandler(int)
+{
+ exit(0);
+}
+
Application::RegApp<NetVis> NetVis::reg;
projects / netvis.git / blobdiff