X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fnetvis.cpp;h=3a0f09219449f46dc9bb5d1be56f116cffc0ad0b;hb=2fe5b8243b3a7e1c6251e83a55d29d175b8905e4;hp=711788b86062c6e2d388cd1025cc1d7c350f343e;hpb=229e1d6ab66a9e987ffe3cd4a8de7c7f874f6de1;p=netvis.git

diff --git a/source/netvis.cpp b/source/netvis.cpp
index 711788b..3a0f092 100644
--- a/source/netvis.cpp
+++ b/source/netvis.cpp
@@ -1,9 +1,18 @@
+/* $Id$
+
+This file is part of NetVis
+Copyright @ 2008 Mikko Rasa, Mikkosoft Productions
+Distributed unter the GPL
+*/
+
 #include <iostream>
+#include <signal.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/immediate.h>
 #include <msp/gl/matrix.h>
 #include <msp/gl/misc.h>
@@ -11,16 +20,23 @@
 #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 "host.h"
 #include "netvis.h"
 #include "packet.h"
+#include "resolver.h"
 
 using namespace std;
 using namespace Msp;
 
-NetVis::NetVis(int /*argc*/, char **argv)
+NetVis::NetVis(int argc, char **argv):
+	draw_labels(true),
+	blend(true),
+	frames(0)
 {
+	if(argc<2)
+		throw UsageError("No interface given");
 	iface=argv[1];
 }
 
@@ -34,10 +50,16 @@ int NetVis::main()
 	if(pcap_setnonblock(pcap, true, err)==-1)
 		throw Exception(err);
 
+	pcap_lookupnet(iface.c_str(), &localnet, &localnet_mask, err);
+	localnet=ntohl(localnet);
+	localnet_mask=ntohl(localnet_mask);
+
 	dpy=new Graphics::Display;
 	wnd=new Graphics::Window(*dpy, 1024, 768);
 	glc=new Graphics::GLContext(*wnd);
 	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);
@@ -49,83 +71,201 @@ int NetVis::main()
 	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();
 
+	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(map<unsigned, Host *>::iterator i=disabled_hosts.begin(); i!=disabled_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();
-	if(!last_tick)
-		last_tick=t;
-	Msp::Time::TimeDelta dt=t-last_tick;
-	last_tick=t;
-
-	dpy->tick();
+	Msp::Time::TimeDelta dt;
+	if(tick_t)
+		dt=t-tick_t;
+	tick_t=t;
 
-	pcap_dispatch(pcap, -1, &capture_handler, reinterpret_cast<unsigned char *>(this));
-
-	glClear(GL_COLOR_BUFFER_BIT);
+	if(tick_t>fps_t+Msp::Time::sec)
+	{
+		fps=frames/((tick_t-fps_t)/Msp::Time::sec);
+		fps_t=tick_t;
+		frames=0;
+	}
 
-	GL::matrix_mode(GL::PROJECTION);
-	GL::load_identity();
-	GL::ortho_centered(1024, 768);
-	GL::matrix_mode(GL::MODELVIEW);
-	GL::load_identity();
+	dpy->tick();
 
-	for(map<unsigned, Host *>::iterator i=hosts.begin(); i!=hosts.end(); ++i)
 	{
-		i->second->tick(dt);
-		i->second->render();
+		Debug::ProfilingScope s(profiler, "capture");
+		while(pcap_dispatch(pcap, -1, &capture_handler, reinterpret_cast<unsigned char *>(this))>0);
 	}
-	for(list<Packet *>::iterator i=packets.begin(); i!=packets.end();)
+
 	{
-		(*i)->tick(dt);
-		(*i)->render();
-		if((*i)->get_stale())
+		Debug::ProfilingScope s(profiler, "tick");
+
+		resolver->tick();
+
+		float min_activity=1e7f;
+		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());
+		}
+		for(map<unsigned, Host *>::iterator i=disabled_hosts.begin(); i!=disabled_hosts.end(); ++i)
+			i->second->tick(dt);
+
+		for(map<unsigned, Host *>::iterator i=disabled_hosts.begin(); i!=disabled_hosts.end();)
+		{
+			if(i->second->get_activity()>min_activity)
+			{
+				i->second->set_active(true);
+				hosts.insert(*i);
+				disabled_hosts.erase(i++);
+			}
+			else
+				++i;
+		}
+		if(hosts.size()>20)
+		{
+			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;
+
+			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();)
 		{
-			delete *i;
-			i=packets.erase(i);
+			(*i)->tick(dt);
+			if((*i)->get_stale())
+			{
+				delete *i;
+				i=packets.erase(i);
+			}
+			else
+				++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;
+		Debug::ProfilingScope s(profiler, "render");
+		glClear(GL_COLOR_BUFFER_BIT);
 
-		GL::push_matrix();
+		GL::matrix_mode(GL::PROJECTION);
+		GL::load_identity();
+		GL::ortho_centered(1024, 768);
+		GL::matrix_mode(GL::MODELVIEW);
+		GL::load_identity();
 
-		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)
+		for(map<unsigned, Host *>::iterator i=hosts.begin(); i!=hosts.end(); ++i)
+			i->second->render();
+		if(draw_labels)
 		{
-			imm.vertex(x+0, 0);
-			imm.vertex(x+10, 0);
-			imm.vertex(x+10, 10);
-			imm.vertex(x+0, 10);
+			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::Immediate imm((GL::COLOR4_UBYTE, GL::VERTEX2));
+		imm.begin(GL::QUADS);
+		for(list<Packet *>::iterator i=packets.begin(); i!=packets.end(); ++i)
+			(*i)->render(imm);
 		imm.end();
 
-		GL::translate(15, 1, 0);
+		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)
+		{
+			GL::Color &color=i->second;
+
+			imm.begin(GL::QUADS);
+			imm.color(color.r, color.g, color.b, color.a);
+			for(unsigned x=0; x<=4; x+=2)
+			{
+				imm.vertex(x+0, 0);
+				imm.vertex(x+10, 0);
+				imm.vertex(x+10, 10);
+				imm.vertex(x+0, 10);
+			}
+			imm.end();
+
+			GL::translate(0, -12, 0);
+		}
+		GL::pop_matrix();
+
+		GL::push_matrix();
+		if(draw_labels)
+		{
+			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)
+			{
+				font->draw_string(format("%d", i->first));
+
+				GL::translate(0, -1.2, 0);
+			}
+			GL::pop_matrix();
+			GL::Texture::unbind();
+		}
+		GL::pop_matrix();
+
+		GL::push_matrix();
+		GL::translate(-500, -360, 0);
 		GL::scale_uniform(10);
-		glColor4f(1.0, 1.0, 1.0, 1.0);
-		font->draw_string(format("%d", i->first));
+		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::pop_matrix();
 		GL::Texture::unbind();
 
-		GL::pop_matrix();
-		GL::translate(0, -12, 0);
+		glc->swap_buffers();
 	}
 
-	glc->swap_buffers();
+	++frames;
 }
 
 Host &NetVis::get_host(unsigned a)
@@ -134,8 +274,15 @@ Host &NetVis::get_host(unsigned a)
 	if(i!=hosts.end())
 		return *i->second;
 
+	i=disabled_hosts.find(a);
+	if(i!=disabled_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));
+	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;
 	return *host;
 }
@@ -159,6 +306,17 @@ GL::Color &NetVis::get_port_color(unsigned port)
 	return port_colors[port]=color;
 }
 
+void NetVis::key_press(unsigned key, unsigned, wchar_t)
+{
+	if(key==46)
+		draw_labels=!draw_labels;
+	else if(key==56)
+	{
+		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);
@@ -168,8 +326,7 @@ void NetVis::capture_handler(unsigned char *user, const pcap_pkthdr *, const uns
 	{
 		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;
 		if(ip->protocol==IPPROTO_TCP)
 		{
@@ -185,8 +342,23 @@ void NetVis::capture_handler(unsigned char *user, const pcap_pkthdr *, const uns
 		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)));
+
+		float throttle=shost.send_packet();
+		if(throttle<1)
+		{
+			self->packets.push_back(new Packet(shost, dhost, self->get_port_color(port), size));
+			self->packets.back()->tick(-throttle*Msp::Time::sec);
+		}
+
+		shost.add_activity(size);
+		if(dhost)
+			dhost->add_activity(size);
 	}
 }
 
+void NetVis::sighandler(int)
+{
+	exit(0);
+}
+
 Application::RegApp<NetVis> NetVis::reg;