Distributed unter the GPL
*/
-#include <iostream>
+#include <limits>
+#include <cstdlib>
+#include <cmath>
#include <signal.h>
#include <netinet/ip.h>
#include <netinet/tcp.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 "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):
+ pcap(0),
+ resolver(0),
+ wnd(0),
+ font(0),
+ max_hosts(1000),
+ max_visible_hosts(30),
draw_labels(true),
blend(true),
frames(0)
{
if(argc<2)
throw UsageError("No interface given");
- iface=argv[1];
-}
+ 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);
throw Exception(err);
pcap_lookupnet(iface.c_str(), &localnet, &localnet_mask, err);
- localnet=ntohl(localnet);
- localnet_mask=ntohl(localnet_mask);
+ localnet = ntohl(localnet);
+ localnet_mask = ntohl(localnet_mask);
- dpy=new Graphics::Display;
- wnd=new Graphics::Window(*dpy, 1024, 768);
- glc=new Graphics::GLContext(*wnd);
+ 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->signal_key_press.connect(sigc::mem_fun(this, &NetVis::key_press));
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);
catch_signal(SIGINT);
+}
- resolver=new Resolver;
-
- //set_loop_mode(TICK_BUSY);
-
- Application::main();
-
+NetVis::~NetVis()
+{
delete resolver;
delete font;
- delete font_tex;
- delete glc;
delete wnd;
- delete dpy;
-
- cout<<hosts.size()+disabled_hosts.size()<<" different hosts seen\n";
- cout<<"capture: "<<profiler.scope("capture").total_time<<'\n';
- cout<<"tick: "<<profiler.scope("tick").total_time<<'\n';
- cout<<"render: "<<profiler.scope("render").total_time<<'\n';
pcap_close(pcap);
for(map<unsigned, Host *>::iterator i=hosts.begin(); i!=hosts.end(); ++i)
delete i->second;
for(list<Packet *>::iterator i=packets.begin(); i!=packets.end(); ++i)
delete *i;
-
- return exit_code;
}
void NetVis::tick()
{
- Msp::Time::TimeStamp t=Msp::Time::now();
+ Msp::Time::TimeStamp t = Msp::Time::now();
Msp::Time::TimeDelta dt;
if(tick_t)
- dt=t-tick_t;
- tick_t=t;
+ dt = t-tick_t;
+ tick_t = t;
if(tick_t>fps_t+Msp::Time::sec)
{
- fps=frames/((tick_t-fps_t)/Msp::Time::sec);
- fps_t=tick_t;
- frames=0;
+ fps = frames/((tick_t-fps_t)/Msp::Time::sec);
+ fps_t = tick_t;
+ frames = 0;
}
- dpy->tick();
+ wnd->get_display().tick();
{
Debug::ProfilingScope s(profiler, "capture");
- while(pcap_dispatch(pcap, -1, &capture_handler, reinterpret_cast<unsigned char *>(this))>0);
+ while(pcap_dispatch(pcap, -1, &capture_handler, reinterpret_cast<unsigned char *>(this))>0) ;
}
{
resolver->tick();
- float min_activity=1e7f;
+ float min_activity = numeric_limits<float>::max();
for(map<unsigned, Host *>::iterator i=hosts.begin(); i!=hosts.end(); ++i)
{
i->second->tick(dt);
- min_activity=min(min_activity, i->second->get_activity());
+ min_activity = min(min_activity, i->second->get_activity());
}
- for(map<unsigned, Host *>::iterator i=disabled_hosts.begin(); i!=disabled_hosts.end(); ++i)
- i->second->tick(dt);
-
+ 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);
disabled_hosts.erase(i++);
}
+ else if(i->second->get_activity()<del_limit)
+ {
+ delete i->second;
+ disabled_hosts.erase(i++);
+ }
else
++i;
}
- if(hosts.size()>20)
+
+ 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()-20);
- float limit=*j;
+ 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)->get_stale())
{
delete *i;
- i=packets.erase(i);
+ i = packets.erase(i);
}
else
++i;
{
Debug::ProfilingScope s(profiler, "render");
- glClear(GL_COLOR_BUFFER_BIT);
+ GL::clear(GL::COLOR_BUFFER_BIT);
GL::matrix_mode(GL::PROJECTION);
GL::load_identity();
i->second->render();
if(draw_labels)
{
- glColor4f(1.0, 1.0, 1.0, 1.0);
for(map<unsigned, Host *>::iterator i=hosts.begin(); i!=hosts.end(); ++i)
i->second->render_label();
GL::Texture::unbind();
GL::push_matrix();
GL::translate(-500, 360, 0);
- unsigned n=0;
- for(map<unsigned, GL::Color>::iterator i=port_colors.begin(); (i!=port_colors.end() && n<20); ++i, ++n)
+ unsigned n = 0;
+ for(map<unsigned, Port>::iterator i=ports.begin(); (i!=ports.end() && n<50); ++i, ++n)
{
- GL::Color &color=i->second;
+ const GL::Color &color = i->second.get_color();
imm.begin(GL::QUADS);
imm.color(color.r, color.g, color.b, color.a);
GL::push_matrix();
GL::translate(-484, 361, 0);
GL::scale_uniform(10);
- glColor4f(1.0, 1.0, 1.0, 1.0);
- n=0;
- for(map<unsigned, GL::Color>::iterator i=port_colors.begin(); (i!=port_colors.end() && n<20); ++i, ++n)
+ n = 0;
+ for(map<unsigned, Port>::iterator i=ports.begin(); (i!=ports.end() && n<50); ++i, ++n)
{
- font->draw_string(format("%d", i->first));
+ GL::Immediate imm2((GL::COLOR4_UBYTE, GL::TEXCOORD2, GL::VERTEX2));
+ imm.color(1.0f, 1.0f, 1.0f);
+ font->draw_string(i->second.get_name(), imm2);
GL::translate(0, -1.2, 0);
}
GL::pop_matrix();
GL::Texture::unbind();
- glc->swap_buffers();
+ wnd->swap_buffers();
}
++frames;
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;
- i=disabled_hosts.find(a);
+ i = disabled_hosts.find(a);
if(i!=disabled_hosts.end())
return *i->second;
- Host *host=new Host(*this, a);
+ 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));
- hosts[a]=host;
+ hosts[a] = host;
return *host;
}
-GL::Color &NetVis::get_port_color(unsigned port)
+GL::Color NetVis::generate_color(bool privileged) const
{
- map<unsigned, GL::Color>::iterator i=port_colors.find(port);
- if(i!=port_colors.end())
+ GL::Color color;
+ color.r = rand()*1.0/RAND_MAX;
+ color.g = rand()*1.0/RAND_MAX;
+ color.b = rand()*1.0/RAND_MAX;
+ float high = max(max(color.r, color.g), color.b);
+ color = color*(1.0/high);
+ if(privileged)
+ {
+ float low = min(min(color.r, color.g), color.b);
+ color = (color+-low)*(1/(1-low));
+ }
+ else
+ color = color*0.6+0.4;
+ return color;
+}
+
+const Port &NetVis::get_port(unsigned number)
+{
+ map<unsigned, Port>::iterator i = ports.find(number);
+ if(i!=ports.end())
return i->second;
- GL::Color color;
- while(1)
+ GL::Color best_color;
+ float best_score = 0;
+ for(unsigned j=0; (j<100 && best_score<1); ++j)
{
- 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;
+ GL::Color color = generate_color(number<1024);
+
+ float score = 2;
+ for(i=ports.begin(); i!=ports.end(); ++i)
+ {
+ const GL::Color &other = i->second.get_color();
+ float dr = color.r-other.r;
+ float dg = color.g-other.g;
+ float db = color.b-other.b;
+ score = min(score, dr*dr+dg*dg+db*db);
+ }
+ if(score>best_score)
+ {
+ best_score = score;
+ best_color = color;
+ }
}
- color.a=0.4f;
- return port_colors[port]=color;
+ best_color.a = 0.4f;
+ i = ports.insert(map<unsigned, Port>::value_type(number, Port(number, best_color))).first;
+ return i->second;
}
void NetVis::key_press(unsigned key, unsigned, wchar_t)
{
if(key==46)
- draw_labels=!draw_labels;
+ draw_labels = !draw_labels;
else if(key==56)
{
- blend=!blend;
+ blend = !blend;
GL::set(GL_BLEND, blend);
}
}
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);
- unsigned size=ntohs(ip->tot_len);
- 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));
+ dhost = &self->get_host(ntohl(ip->daddr));
- float throttle=shost.send_packet();
+ float throttle = shost.send_packet();
if(throttle<1)
{
- self->packets.push_back(new Packet(shost, dhost, self->get_port_color(port), size));
+ self->packets.push_back(new Packet(shost, dhost, self->get_port(port).get_color(), size));
self->packets.back()->tick(-throttle*Msp::Time::sec);
}
projects / netvis.git / blobdiff