From e20987548be0dfe5b9b39b8ac0f23239320a7825 Mon Sep 17 00:00:00 2001 From: Planet-Lab Support Date: Wed, 18 May 2005 17:47:23 +0000 Subject: [PATCH] This commit was manufactured by cvs2svn to create tag 'planetlab-3_1_1-rc1'. --- Makefile | 21 ++------ ipod.spec | 35 +++++++++++--- pod.py | 141 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 173 insertions(+), 24 deletions(-) create mode 100755 pod.py diff --git a/Makefile b/Makefile index 338dc58..dbe3395 100644 --- a/Makefile +++ b/Makefile @@ -7,31 +7,16 @@ # test: runs the tests on the current machine # -ALLBUILD=pl-poddoit pod ipod-2.0.tar.gz -PLBIN=/usr/local/planetlab/bin/ -INIT=/etc/init.d/ +ALLBUILD=pl-poddoit pod all: $(ALLBUILD) pod: pod.src disable_pod.sh enable_pod.sh status_pod.sh ./shell_include --source pod.src --destination pod -ipod-2.0.tar.gz: pod ipod.spec - mkdir ipod-2.0 - cp ipod.spec disable_pod.sh enable_pod.sh INTEL_LICENSE.txt ipod.patch \ - Makefile pl-podcntl pl-poddoit.c pl-podset pl-podzap pod.src \ - README shell_include status_pod.sh test-pod ipod-2.0 - tar cvfz ipod-2.0.tar.gz ipod-2.0 - rm -rf ipod-2.0 - pl-poddoit: pl-poddoit.c gcc pl-poddoit.c -o pl-poddoit -install: all - cp pl-poddoit $(PLBIN) - chmod 555 $(PLBIN)/pl-poddoit - cp pod $(INIT) - chmod 555 $(INIT)/pod - clean: - rm -f pod pl-poddoit ipod-2.0.tar.gz + rm -f pod pl-poddoit + diff --git a/ipod.spec b/ipod.spec index 3161ead..e4bec3f 100644 --- a/ipod.spec +++ b/ipod.spec @@ -1,10 +1,20 @@ +%define name ipod +%define version 2.0 +%define release 6.planetlab%{?date:.%{date}} + +Vendor: PlanetLab +Packager: PlanetLab Central +Distribution: PlanetLab 3.0 +URL: http://cvs.planet-lab.org/cvs/ipod + Summary: PlanetLab ICMP Ping of Death -Name: ipod -Version: 2.0 -Release: 2 +Name: %{name} +Version: %{version} +Release: %{release} Copyright: GPL Group: System Environment/Kernel -Source: ipod-2.0.tar.gz +Source: %{name}-%{version}.tar.gz +BuildRoot: %{_tmppath}/%{name}-%{version}root %description Startup service to enable Ping Of Death @@ -16,13 +26,21 @@ Startup service to enable Ping Of Death %build make + %install -make install +mkdir -p $RPM_BUILD_ROOT/usr/local/planetlab/bin +mkdir -p $RPM_BUILD_ROOT/etc/init.d + +cp pl-poddoit $RPM_BUILD_ROOT/usr/local/planetlab/bin/ +cp pod $RPM_BUILD_ROOT/etc/init.d/ + %clean +[ "$RPM_BUILD_ROOT" != "/" ] && rm -rf $RPM_BUILD_ROOT + %files -%defattr(-, root, root) +%defattr(0755, root, root) /etc/init.d/pod /usr/local/planetlab/bin/pl-poddoit @@ -48,3 +66,8 @@ fi %postun + +%changelog +* Mon Apr 12 2004 Aaron Klingaman +- moved to new build process +- added change log diff --git a/pod.py b/pod.py new file mode 100755 index 0000000..7e406df --- /dev/null +++ b/pod.py @@ -0,0 +1,141 @@ +#! /usr/bin/env python +# +# Marc E. Fiuczynski +# Copyright (C) 2004 The Trustees of Princeton University +# +# Client ping of death program for both udp & icmp + +import sys +import struct +import os +import array +import getopt +from socket import * + +def usage(): + sys.stdout = sys.stderr + print 'Usage: pod -i identityfile [--icmp,--udp] hostnamelist' + print ' -i identity key where key may be - for stdin' + print ' --icmp icmp protocol only' + print ' --udp udp protocol only' + print ' by default both icmp and udp are used' + + +UPOD_PORT = 664 + +def _in_cksum(packet): + """THE RFC792 states: 'The 16 bit one's complement of + the one's complement sum of all 16 bit words in the header.' + Generates a checksum of a (ICMP) packet. Based on in_chksum found + in ping.c on FreeBSD. + """ + + # add byte if not dividable by 2 + if len(packet) & 1: + packet = packet + '\0' + + # split into 16-bit word and insert into a binary array + words = array.array('h', packet) + sum = 0 + + # perform ones complement arithmetic on 16-bit words + for word in words: + sum += (word & 0xffff) + + hi = sum >> 16 + lo = sum & 0xffff + sum = hi + lo + sum = sum + (sum >> 16) + + return (~sum) & 0xffff # return ones complement + +def _construct(id, data): + """Constructs a ICMP IPOD packet + """ + ICMP_TYPE = 6 # ping of death code used by PLK + ICMP_CODE = 0 + ICMP_CHECKSUM = 0 + ICMP_ID = 0 + ICMP_SEQ_NR = 0 + + header = struct.pack('bbHHh', ICMP_TYPE, ICMP_CODE, ICMP_CHECKSUM, \ + ICMP_ID, ICMP_SEQ_NR+id) + + packet = header + data # ping packet without checksum + checksum = _in_cksum(packet) # make checksum + + # construct header with correct checksum + header = struct.pack('bbHHh', ICMP_TYPE, ICMP_CODE, checksum, ICMP_ID, \ + ICMP_SEQ_NR+id) + + # ping packet *with* checksum + packet = header + data + + # a perfectly formatted ICMP echo packet + return packet + +def icmp_pod(host,key): + uid = os.getuid() + if uid <> 0: + print "must be root to send icmp pod" + return + + s = socket(AF_INET, SOCK_RAW, getprotobyname("icmp")) + packet = _construct(0, key) # make a ping packet + addr = (host,1) + print 'pod sending icmp-based reboot request to %s' % host + for i in range(1,10): + s.sendto(packet, addr) + +def udp_pod(host,key): + addr = host, UPOD_PORT + s = socket(AF_INET, SOCK_DGRAM) + s.bind(('', 0)) + packet = key + print 'pod sending udp-based reboot request to %s' % host + for i in range(1,10): + s.sendto(packet, addr) + +def noop_pod(host,key): + pass + +def main(): + try: + opts, args = getopt.getopt(sys.argv[1:], "i:", ["icmp","udp"]) + except getops.GetoptError: + usage() + sys.exit(2) + + hosts = args + protos = {'udp' : udp_pod, 'icmp' : icmp_pod} + key = None + for o, a in opts: + if o == "--icmp": + del protos['udp'] + if o == "--udp": + del protos['icmp'] + if o == "-i": + if len(a)==1 and a[0]=='-': + key = sys.stdin.readline() + else: + try: + f = open(a) + key = f.readline() + key = k[:32] + f.close() + except: + print '%s not found' % a + usage() + sys.exit(2) + + if key is None: + usage() + sys.exit(2) + + protocols = ['udp','icmp'] + for host in hosts: + for protocol in protocols: + pod = protos.get(protocol,noop_pod) + pod(host,key) + +main() -- 2.47.0