X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fnetvis.cpp;h=7bb49bb458e507cb52d3f33cfcd17872f3537142;hb=049518d751b3e2bada5af0bd1af63273e782775f;hp=711788b86062c6e2d388cd1025cc1d7c350f343e;hpb=229e1d6ab66a9e987ffe3cd4a8de7c7f874f6de1;p=netvis.git

diff --git a/source/netvis.cpp b/source/netvis.cpp
index 711788b..7bb49bb 100644
--- a/source/netvis.cpp
+++ b/source/netvis.cpp
@@ -1,9 +1,22 @@
-#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>
@@ -11,182 +24,344 @@
 #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);
 
-	delete glc;
+	catch_signal(SIGINT);
+}
+
+NetVis::~NetVis()
+{
+	delete resolver;
+
+	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) ;
 
-	GL::matrix_mode(GL::PROJECTION);
-	GL::load_identity();
-	GL::ortho_centered(1024, 768);
-	GL::matrix_mode(GL::MODELVIEW);
-	GL::load_identity();
+	resolver->tick();
+	history->tick(tick_t);
 
+
+	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*static_cast<int>(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)
+		{
+			resolver->cancel(i->second);
+			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(map<unsigned, Port *>::iterator i=ports.begin(); i!=ports.end();)
+	{
+		i->second->tick(dt);
+
+		if(!i->second->is_registered() && i->second->get_activity()<0.1)
+		{
+			delete i->second;
+			ports.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();
+
+	++frames;
+}
 
-		GL::push_matrix();
+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::translate(0, -12, 0);
+	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)
+	{
+		float act = i->second->get_activity();
+		if((i->second->is_registered() && act>1) || act>200)
+		{
+			i->second->render();
+			GL::translate(0, -12, 0);
+			++n;
+		}
 	}
+	GL::pop_matrix();
+
+	GL::push_matrix();
+	GL::translate(-500, -348, 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("%d ports", ports.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)
+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 size = ntohs(ip->tot_len);
 
-		unsigned port=0;
+		Port *sport = 0;
+		Port *dport = 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);
+			sport = &self->get_port(ntohs(tcp->source));
+			dport = &self->get_port(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);
+			sport = &self->get_port(ntohs(udp->source));
+			dport = &self->get_port(ntohs(udp->dest));
+		}
+
+		Port *port = 0;
+		if(sport && dport)
+		{
+			if(sport->is_registered()!=dport->is_registered())
+			{
+				if(sport->is_registered())
+					port = sport;
+				else
+					port = dport;
+			}
+			else if(sport->get_number()<dport->get_number())
+				port = sport;
+			else
+				port = dport;
 		}
-		Host &shost=self->get_host(ntohl(ip->saddr));
-		Host *dhost=0;
+		else
+			port = &self->get_port(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, port->get_color(), size));
+			self->packets.back()->tick(-throttle*Msp::Time::sec);
+		}
+
+		shost.add_activity(size);
+		if(dhost)
+			dhost->add_activity(size);
+
+		if(sport)
+			sport->add_activity(size);
+		if(dport)
+			dport->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;