Annotation of embedaddon/dhcp/tests/DHCPv6/000-badmsgtype.pl, revision 1.1
1.1 ! misho 1: #! /usr/bin/perl -w
! 2:
! 3: # Copyright (c) 2007,2009 by Internet Systems Consortium, Inc. ("ISC")
! 4: #
! 5: # Permission to use, copy, modify, and distribute this software for any
! 6: # purpose with or without fee is hereby granted, provided that the above
! 7: # copyright notice and this permission notice appear in all copies.
! 8: #
! 9: # THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
! 10: # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
! 11: # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR
! 12: # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
! 13: # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
! 14: # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
! 15: # OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
! 16: #
! 17: # Internet Systems Consortium, Inc.
! 18: # 950 Charter Street
! 19: # Redwood City, CA 94063
! 20: # <info@isc.org>
! 21: # https://www.isc.org/
! 22:
! 23: use strict;
! 24: use English;
! 25: use Time::HiRes qw( sleep );
! 26: use Socket;
! 27: use Socket6;
! 28: use IO::Select;
! 29:
! 30: use dhcp_client;
! 31:
! 32: # well-known addresses
! 33: my $All_DHCP_Relay_Agents_and_Servers = "ff02::1:2";
! 34: my $All_DHCP_Servers = "ff05::1:3";
! 35:
! 36: # ports
! 37: my $client_port = 546;
! 38: my $server_port = 547;
! 39:
! 40: # create a new Solicit message
! 41: my $msg = dhcp_client::msg->new(255);
! 42:
! 43: # add the Client Identifier (required by DOCSIS and RFC 3315)
! 44: $msg->add_option($OPT_CLIENTID, dhcp_client::duid());
! 45:
! 46: # add Elapsed Time, set to 0 on first packet (required by RFC 3315)
! 47: $msg->add_option($OPT_ELAPSED_TIME, "\x00\x00");
! 48:
! 49: # add IA_NA for each interface (required by DOCSIS and RFC 3315)
! 50: # XXX: should this be a single interface only?
! 51: my $iaid = 0;
! 52: foreach my $iface (dhcp_client::iface()) {
! 53: my $option_data = pack("NNN", ++$iaid, 0, 0);
! 54: $msg->add_option($OPT_IA_NA, $option_data);
! 55: }
! 56:
! 57: # add Options Request (required by DOCSIS, recommended by RFC 3315)
! 58: my @oro = ( );
! 59: $msg->add_option($OPT_ORO, pack("n*", @oro));
! 60:
! 61: # timeout parameters
! 62: my $IRT = $SOL_TIMEOUT;
! 63: my $MRT = $SOL_MAX_RT;
! 64: my $MRC = 1; # DOCSIS says 4, RFC 3315 says it SHOULD be 0
! 65: my $MRD = 0;
! 66:
! 67: # sleep a random amount of time between 0 and 1 second, required by RFC 3315
! 68: # XXX: this seems pretty stupid
! 69: sleep(rand($SOL_MAX_DELAY));
! 70:
! 71: my $RT;
! 72: my $count = 0;
! 73: my $mrd_end_time;
! 74: if ($MRD != 0) {
! 75: $mrd_end_time = time() + $MRD;
! 76: }
! 77: my $reply_msg;
! 78: do {
! 79: # create our socket, and send our bogus packet
! 80: socket(SOCK, PF_INET6, SOCK_DGRAM, getprotobyname('udp')) || die;
! 81: my $addr = inet_pton(AF_INET6, $All_DHCP_Servers);
! 82: my $packet = $msg->packet();
! 83: my $send_ret = send(SOCK, $packet, 0,
! 84: pack_sockaddr_in6($server_port, $addr));
! 85: if (not defined($send_ret)) {
! 86: printf STDERR
! 87: "Error \%d sending DHCPv6 message;\n\%s\n",
! 88: 0+$ERRNO, $ERRNO;
! 89: exit(1);
! 90: } elsif ($send_ret != length($packet)) {
! 91: print STDERR "Unable to send entire DHCPv6 message.\n";
! 92: exit(1);
! 93: }
! 94: $count++;
! 95:
! 96: my $RAND = rand(0.2) - 0.1;
! 97: if (defined $RT) {
! 98: $RT = 2*$RT + $RAND*$RT;
! 99: if (($RT > $MRT) && ($MRT != 0)) {
! 100: $RT = $MRT + $RAND*$RT;
! 101: }
! 102: } else {
! 103: $RT = $IRT + $RAND*$IRT;
! 104: }
! 105:
! 106: my $rt_end_time = time() + $RT;
! 107: if (defined($mrd_end_time) && ($mrd_end_time > $rt_end_time)) {
! 108: $rt_end_time = $mrd_end_time;
! 109: }
! 110:
! 111: for (;;) {
! 112: my $timeout = $rt_end_time - time();
! 113: if ($timeout < 0) {
! 114: last;
! 115: }
! 116:
! 117: my @ready = IO::Select->new(\*SOCK)->can_read($timeout);
! 118:
! 119: if (@ready) {
! 120: my $reply;
! 121: my $recv_ret;
! 122:
! 123: $recv_ret = recv(SOCK, $reply, 1500, 0);
! 124: if (not defined $recv_ret) {
! 125: printf STDERR
! 126: "Error \%d receiving DHCPv6 " .
! 127: "message;\n\%s\n",
! 128: 0+$ERRNO, $ERRNO;
! 129: exit(1);
! 130: }
! 131:
! 132: $reply_msg = dhcp_client::msg::decode($reply);
! 133: if (($reply_msg->{msg_type} == $MSG_ADVERTISE) ||
! 134: ($reply_msg->{msg_type} == $MSG_REPLY)) {
! 135: last;
! 136: }
! 137: }
! 138: }
! 139:
! 140: } until ($reply_msg ||
! 141: (($MRC != 0) && ($count > $MRC)) ||
! 142: (defined($mrd_end_time) && ($mrd_end_time > time())));
! 143:
! 144: unless ($reply_msg) {
! 145: if (($MRC != 0) && ($count >= $MRC)) {
! 146: print STDERR
! 147: "No reply after maximum retransmission count.\n";
! 148: } else {
! 149: print STDERR
! 150: "No reply after maximum retransmission duration.\n";
! 151: }
! 152: }
! 153:
! 154: if ($reply_msg && ($reply_msg->{msg_type} == $MSG_REPLY)) {
! 155: print "Got DHCPv6 Reply message.\n";
! 156: exit(0);
! 157: }
! 158:
! 159: #$Data::Dumper::Useqq = 1;
! 160: #print Dumper($msg), "\n";
! 161: #print Dumper($msg->packet()), "\n";
! 162: #
! 163: #print "packet length: ", length($msg->packet()), "\n";
! 164:
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