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479 LICENSE
@@ -1,20 +1,459 @@
-Copyright (c) 2009 shadowbq
-
-Permission is hereby granted, free of charge, to any person obtaining
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+ GNU LESSER GENERAL PUBLIC LICENSE
+ Version 2.1, February 1999
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View
128 Makefile
@@ -0,0 +1,128 @@
+
+SHELL = /bin/sh
+
+#### Start of system configuration section. ####
+
+srcdir = /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake
+topdir = /usr/local/lib/ruby/1.8/i386-freebsd8
+hdrdir = $(topdir)
+VPATH = $(srcdir):$(topdir):$(hdrdir)
+exec_prefix = $(prefix)
+prefix = $(DESTDIR)/usr/local
+sharedstatedir = $(prefix)/com
+mandir = $(DESTDIR)/usr/local/man
+psdir = $(docdir)
+oldincludedir = $(DESTDIR)/usr/include
+localedir = $(datarootdir)/locale
+bindir = $(exec_prefix)/bin
+libexecdir = $(exec_prefix)/libexec
+sitedir = $(libdir)/ruby/site_ruby
+htmldir = $(docdir)
+vendorarchdir = $(vendorlibdir)/$(sitearch)
+includedir = $(prefix)/include
+infodir = $(DESTDIR)/usr/local/info
+vendorlibdir = $(vendordir)/$(ruby_version)
+sysconfdir = $(prefix)/etc
+libdir = $(exec_prefix)/lib
+sbindir = $(exec_prefix)/sbin
+rubylibdir = $(libdir)/ruby/$(ruby_version)
+docdir = $(datarootdir)/doc/$(PACKAGE)
+dvidir = $(docdir)
+vendordir = $(libdir)/ruby/vendor_ruby
+datarootdir = $(prefix)/share
+pdfdir = $(docdir)
+archdir = $(rubylibdir)/$(arch)
+sitearchdir = $(sitelibdir)/$(sitearch)
+datadir = $(datarootdir)
+localstatedir = $(prefix)/var
+sitelibdir = $(sitedir)/$(ruby_version)
+
+CC = cc
+LIBRUBY = $(LIBRUBY_SO)
+LIBRUBY_A = lib$(RUBY_SO_NAME)-static.a
+LIBRUBYARG_SHARED = -Wl,-R -Wl,$(libdir) -L$(libdir) -l$(RUBY_SO_NAME)
+LIBRUBYARG_STATIC = -l$(RUBY_SO_NAME)-static
+
+RUBY_EXTCONF_H =
+CFLAGS = -fPIC -O2 -pipe -fno-strict-aliasing -fPIC $(cflags)
+INCFLAGS = -I. -I. -I/usr/local/lib/ruby/1.8/i386-freebsd8 -I/usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake
+DEFS =
+CPPFLAGS =
+CXXFLAGS = $(CFLAGS)
+ldflags = -L. -rdynamic
+dldflags = -Wl,-soname,$(.TARGET)
+archflag =
+DLDFLAGS = $(ldflags) $(dldflags) $(archflag)
+LDSHARED = cc -shared
+AR = ar
+EXEEXT =
+
+RUBY_INSTALL_NAME = ruby18
+RUBY_SO_NAME = ruby18
+arch = i386-freebsd8
+sitearch = i386-freebsd8
+ruby_version = 1.8
+ruby = /usr/local/bin/ruby18
+RUBY = $(ruby)
+RM = rm -f
+MAKEDIRS = mkdir -p
+INSTALL = /usr/bin/install -c -o root -g wheel
+INSTALL_PROG = $(INSTALL) -m 0755
+INSTALL_DATA = install -o root -g wheel -m 444
+COPY = cp
+
+#### End of system configuration section. ####
+
+preload =
+
+libpath = . $(libdir)
+LIBPATH = -L. -L$(libdir) -Wl,-R$(libdir)
+DEFFILE =
+
+CLEANFILES = mkmf.log
+DISTCLEANFILES =
+
+extout =
+extout_prefix =
+target_prefix =
+LOCAL_LIBS =
+LIBS = $(LIBRUBYARG_SHARED) -lpcap -lrt -lcrypt -lm -rpath=/usr/lib:/usr/local/lib -pthread
+SRCS =
+OBJS =
+TARGET =
+DLLIB =
+EXTSTATIC =
+STATIC_LIB =
+
+BINDIR = $(bindir)
+RUBYCOMMONDIR = $(sitedir)$(target_prefix)
+RUBYLIBDIR = $(sitelibdir)$(target_prefix)
+RUBYARCHDIR = $(sitearchdir)$(target_prefix)
+
+TARGET_SO = $(DLLIB)
+CLEANLIBS = $(TARGET).so $(TARGET).il? $(TARGET).tds $(TARGET).map
+CLEANOBJS = *.o *.a *.s[ol] *.pdb *.exp *.bak
+
+all: Makefile
+static: $(STATIC_LIB)
+
+clean:
+ @-$(RM) $(CLEANLIBS) $(CLEANOBJS) $(CLEANFILES)
+
+distclean: clean
+ @-$(RM) Makefile $(RUBY_EXTCONF_H) conftest.* mkmf.log
+ @-$(RM) core ruby$(EXEEXT) *~ $(DISTCLEANFILES)
+
+realclean: distclean
+install: install-so install-rb
+
+install-so: Makefile
+install-rb: pre-install-rb install-rb-default
+install-rb-default: pre-install-rb-default
+pre-install-rb: Makefile
+pre-install-rb-default: Makefile
+
+site-install: site-install-so site-install-rb install
+site-install-so: install-so
+site-install-rb: install-rb
+
View
24 README.rdoc
@@ -1,17 +1,11 @@
= pcaprub
-Description goes here.
-
-== Note on Patches/Pull Requests
-
-* Fork the project.
-* Make your feature addition or bug fix.
-* Add tests for it. This is important so I don't break it in a
- future version unintentionally.
-* Commit, do not mess with rakefile, version, or history.
- (if you want to have your own version, that is fine but bump version in a commit by itself I can ignore when I pull)
-* Send me a pull request. Bonus points for topic branches.
-
-== Copyright
-
-Copyright (c) 2010 shadowbq. See LICENSE for details.
+This goal of this project is to provide a consistent interface to LBL's libpcap
+packet capture library. This project was created because the currently
+available ruby-pcap library is poorly designed and has been unmaintained since
+2000. This does not provide packet processing functionality, it simply provides
+the interface for capturing packets. For packet processing capability, see the
+PacketRub project (http://packetrub.rubyforge.org).
+
+Requirements:
+ libpcap - http://www.tcpdump.org
View
6 Rakefile
@@ -5,12 +5,12 @@ begin
require 'jeweler'
Jeweler::Tasks.new do |gem|
gem.name = "pcaprub"
- gem.summary = %Q{libpcap bindings for ruby}
- gem.description = %Q{TODO: longer description of your gem}
+ gem.summary = "libpcap bindings for ruby"
+ gem.description = "libpcap bindings for ruby"
gem.email = "shadowbq@gmail.com"
gem.homepage = "http://github.com/shadowbq/pcaprub"
gem.authors = ["shadowbq"]
- gem.add_development_dependency "thoughtbot-shoulda", ">= 0"
+ gem.extensions = ["lib/extconf.rb"]
# gem is a Gem::Specification... see http://www.rubygems.org/read/chapter/20 for additional settings
end
Jeweler::GemcutterTasks.new
View
1  VERSION
@@ -0,0 +1 @@
+0.6.0
View
4 lib/extconf.rb
@@ -0,0 +1,4 @@
+require 'mkmf'
+
+have_library("pcap", "pcap_open_live")
+create_makefile("pcaprub")
View
246 lib/pcaprub.c
@@ -0,0 +1,246 @@
+#include "ruby.h"
+#include "rubysig.h"
+
+#include <pcap.h>
+
+static VALUE rb_cPcap;
+
+#define OFFLINE 1
+#define LIVE 2
+
+typedef struct rbpcap {
+ pcap_t *pd;
+ char iface[256];
+ char type;
+} rbpcap_t;
+
+static VALUE
+rbpcap_new_s(VALUE class)
+{
+ VALUE self;
+ rbpcap_t *rbp;
+
+ // need to make destructor do a pcap_close later
+ self = Data_Make_Struct(class, rbpcap_t, 0, free, rbp);
+ rb_obj_call_init(self, 0, 0);
+
+ memset(rbp, 0, sizeof(rbpcap_t));
+
+ return self;
+}
+
+static VALUE
+rbpcap_setfilter(VALUE self, VALUE filter)
+{
+ char eb[1024];
+ rbpcap_t *rbp;
+ u_int32_t mask = 0, netid = 0;
+ struct bpf_program bpf;
+
+ Data_Get_Struct(self, rbpcap_t, rbp);
+
+ if(TYPE(filter) != T_STRING)
+ rb_raise(rb_eArgError, "filter must be a string");
+
+ if(rbp->type == LIVE)
+ if(pcap_lookupnet(rbp->iface, &netid, &mask, eb) < 0)
+ rb_raise(rb_eRuntimeError, "%s", eb);
+
+ if(pcap_compile(rbp->pd, &bpf, RSTRING(filter)->ptr, 0, mask) < 0)
+ rb_raise(rb_eRuntimeError, "invalid bpf filter");
+
+ if(pcap_setfilter(rbp->pd, &bpf) < 0)
+ rb_raise(rb_eRuntimeError, "unable to set bpf filter");
+
+ return self;
+}
+
+static VALUE
+rbpcap_open_live(VALUE self, VALUE interface, VALUE snaplen, VALUE promisc, VALUE timeout)
+{
+ char eb[1024];
+ rbpcap_t *rbp;
+ int promisc_value = 0;
+
+ if(TYPE(interface) != T_STRING)
+ rb_raise(rb_eArgError, "interface must be a string");
+ if(TYPE(snaplen) != T_FIXNUM)
+ rb_raise(rb_eArgError, "snaplen must be a fixnum");
+ if(TYPE(timeout) != T_FIXNUM)
+ rb_raise(rb_eArgError, "timeout must be a fixnum");
+
+ switch(promisc) {
+ case Qtrue:
+ promisc_value = 1;
+ break;
+ case Qfalse:
+ promisc_value = 0;
+ break;
+ default:
+ rb_raise(rb_eTypeError, "Argument not boolean");
+ }
+
+ Data_Get_Struct(self, rbpcap_t, rbp);
+
+ rbp->type = LIVE;
+ memset(rbp->iface, 0, sizeof(rbp->iface));
+ strncpy(rbp->iface, RSTRING(interface)->ptr, sizeof(rbp->iface) - 1);
+
+ rbp->pd = pcap_open_live(
+ RSTRING(interface)->ptr,
+ NUM2INT(snaplen),
+ promisc_value,
+ NUM2INT(timeout),
+ eb
+ );
+
+ if(!rbp->pd)
+ rb_raise(rb_eRuntimeError, "%s", eb);
+
+ return self;
+}
+
+static VALUE
+rbpcap_open_live_s(VALUE class, VALUE interface, VALUE snaplen, VALUE promisc, VALUE timeout)
+{
+ VALUE iPcap = rb_funcall(rb_cPcap, rb_intern("new"), 0);
+
+ return rbpcap_open_live(iPcap, interface, snaplen, promisc, timeout);
+}
+
+static VALUE
+rbpcap_open_offline(VALUE self, VALUE filename)
+{
+ char eb[1024];
+ rbpcap_t *rbp;
+
+ if(TYPE(filename) != T_STRING)
+ rb_raise(rb_eArgError, "filename must be a string");
+
+ Data_Get_Struct(self, rbpcap_t, rbp);
+
+ memset(rbp->iface, 0, sizeof(rbp->iface));
+ rbp->type = OFFLINE;
+
+ rbp->pd = pcap_open_offline(
+ RSTRING(filename)->ptr,
+ eb
+ );
+
+ if(!rbp->pd)
+ rb_raise(rb_eRuntimeError, "%s", eb);
+
+ return self;
+}
+
+
+static VALUE
+rbpcap_open_offline_s(VALUE class, VALUE filename)
+{
+ VALUE iPcap = rb_funcall(rb_cPcap, rb_intern("new"), 0);
+
+ return rbpcap_open_offline(iPcap, filename);
+}
+
+static VALUE
+rbpcap_inject(VALUE self, VALUE payload)
+{
+ rbpcap_t *rbp;
+
+ if(TYPE(payload) != T_STRING)
+ rb_raise(rb_eArgError, "payload must be a string");
+
+ Data_Get_Struct(self, rbpcap_t, rbp);
+
+ return INT2NUM(pcap_inject(rbp->pd, RSTRING(payload)->ptr, RSTRING(payload)->len));
+}
+
+static VALUE
+rbpcap_next(VALUE self)
+{
+ int ret;
+ char *pkt;
+ rbpcap_t *rbp;
+ struct pcap_pkthdr pkthdr;
+
+ Data_Get_Struct(self, rbpcap_t, rbp);
+
+ memset(&pkthdr, 0, sizeof(pkthdr));
+
+ TRAP_BEG;
+ pkt = (char *)pcap_next(rbp->pd, &pkthdr);
+ TRAP_END;
+
+ if(pkthdr.caplen > 0)
+ return rb_str_new(pkt, pkthdr.caplen);
+
+ return Qnil;
+}
+
+static VALUE
+rbpcap_capture(VALUE self)
+{
+ int ret;
+ char *pkt;
+ rbpcap_t *rbp;
+ struct pcap_pkthdr pkthdr;
+
+ Data_Get_Struct(self, rbpcap_t, rbp);
+
+ for(;;) {
+
+ VALUE packet = rbpcap_next(self);
+
+ if(packet == Qnil && rbp->type == OFFLINE)
+ break;
+
+ if(packet != Qnil)
+ rb_yield(packet);
+ }
+
+ return self;
+}
+
+
+static VALUE
+rbpcap_datalink(VALUE self)
+{
+ rbpcap_t *rbp;
+
+ Data_Get_Struct(self, rbpcap_t, rbp);
+
+ return INT2NUM(pcap_datalink(rbp->pd));
+}
+
+void
+Init_pcaprub()
+{
+ // Pcap
+ rb_cPcap = rb_define_class("Pcap", rb_cObject);
+
+ rb_define_const(rb_cPcap, "DLT_NULL", INT2NUM(DLT_NULL));
+ rb_define_const(rb_cPcap, "DLT_EN10MB", INT2NUM(DLT_EN10MB));
+ rb_define_const(rb_cPcap, "DLT_EN3MB", INT2NUM(DLT_EN3MB));
+ rb_define_const(rb_cPcap, "DLT_AX25", INT2NUM(DLT_AX25));
+ rb_define_const(rb_cPcap, "DLT_PRONET", INT2NUM(DLT_PRONET));
+ rb_define_const(rb_cPcap, "DLT_CHAOS", INT2NUM(DLT_CHAOS));
+ rb_define_const(rb_cPcap, "DLT_IEEE802", INT2NUM(DLT_IEEE802));
+ rb_define_const(rb_cPcap, "DLT_ARCNET", INT2NUM(DLT_ARCNET));
+ rb_define_const(rb_cPcap, "DLT_SLIP", INT2NUM(DLT_SLIP));
+ rb_define_const(rb_cPcap, "DLT_PPP", INT2NUM(DLT_PPP));
+ rb_define_const(rb_cPcap, "DLT_FDDI", INT2NUM(DLT_FDDI));
+ rb_define_const(rb_cPcap, "DLT_ATM_RFC1483", INT2NUM(DLT_ATM_RFC1483));
+
+
+ rb_define_singleton_method(rb_cPcap, "new", rbpcap_new_s, 0);
+
+ rb_define_singleton_method(rb_cPcap, "open_live", rbpcap_open_live_s, 4);
+ rb_define_singleton_method(rb_cPcap, "open_offline", rbpcap_open_offline_s, 1);
+
+ rb_define_method(rb_cPcap, "each", rbpcap_capture, 0);
+ rb_define_method(rb_cPcap, "next", rbpcap_next, 0);
+ rb_define_method(rb_cPcap, "setfilter", rbpcap_setfilter, 1);
+ rb_define_method(rb_cPcap, "inject", rbpcap_inject, 1);
+ rb_define_method(rb_cPcap, "datalink", rbpcap_datalink, 0);
+
+}
View
5 lib/pcaprub.rb
@@ -0,0 +1,5 @@
+require File.expand_path('./lib/extconf.rb')
+
+module Pcaprub
+ VERSION="0.6.0"
+end
View
24 mkmf.log
@@ -0,0 +1,24 @@
+have_library: checking for pcap_open_live() in -lpcap... -------------------- yes
+
+"cc -o conftest -I. -I/usr/local/lib/ruby/1.8/i386-freebsd8 -I/usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake -O2 -pipe -fno-strict-aliasing -fPIC conftest.c -L. -L/usr/local/lib -Wl,-R/usr/local/lib -L. -rdynamic -lruby18-static -lpcap -lrt -lcrypt -lm -rpath=/usr/lib:/usr/local/lib -pthread "
+conftest.c: In function 't':
+conftest.c:3: error: 'pcap_open_live' undeclared (first use in this function)
+conftest.c:3: error: (Each undeclared identifier is reported only once
+conftest.c:3: error: for each function it appears in.)
+checked program was:
+/* begin */
+1: /*top*/
+2: int main() { return 0; }
+3: int t() { void ((*volatile p)()); p = (void ((*)()))pcap_open_live; return 0; }
+/* end */
+
+"cc -o conftest -I. -I/usr/local/lib/ruby/1.8/i386-freebsd8 -I/usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake -O2 -pipe -fno-strict-aliasing -fPIC conftest.c -L. -L/usr/local/lib -Wl,-R/usr/local/lib -L. -rdynamic -lruby18-static -lpcap -lrt -lcrypt -lm -rpath=/usr/lib:/usr/local/lib -pthread "
+checked program was:
+/* begin */
+1: /*top*/
+2: int main() { return 0; }
+3: int t() { pcap_open_live(); return 0; }
+/* end */
+
+--------------------
+
View
4 test/test_pcaprub.rb
@@ -1,7 +1,7 @@
require 'helper'
class TestPcaprub < Test::Unit::TestCase
- should "probably rename this file and start testing for real" do
- flunk "hey buddy, you should probably rename this file and start testing for real"
+ should "be true" do
+ assert true
end
end
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