Annotation of embedaddon/dhcp/tests/DHCPv6/212-solicit-opt-in-na-norapidcommit.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: # XXX: for debugging
! 33: use Data::Dumper;
! 34: $Data::Dumper::Useqq = 1;
! 35:
! 36: # not-yet-standard options
! 37: my $OPT_TIME_SERVERS = 40;
! 38: my $OPT_TIME_OFFSET = 41;
! 39:
! 40: # DOCSIS sub-options
! 41: my $DOCSIS_OPT_ORO = 1;
! 42: # 2 to 31 are reserved
! 43: my $DOCSIS_OPT_TFTP_SERVERS = 32;
! 44: my $DOCSIS_OPT_CONFIG_FILE_NAME = 33;
! 45: my $DOCSIS_OPT_SYSLOG_SERVERS = 34;
! 46: my $DOCSIS_OPT_TLV5 = 35;
! 47: my $DOCSIS_OPT_DEVICE_ID = 36;
! 48: my $DOCSIS_OPT_CCC = 37;
! 49: my $DOCSIS_OPT_VERS = 38;
! 50:
! 51: # well-known addresses
! 52: my $All_DHCP_Relay_Agents_and_Servers = "ff02::1:2";
! 53: my $All_DHCP_Servers = "ff05::1:3";
! 54:
! 55: # ports
! 56: my $client_port = 546;
! 57: my $server_port = 547;
! 58:
! 59: # create a new Solicit message
! 60: my $msg = dhcp_client::msg->new($MSG_SOLICIT);
! 61:
! 62: # add the Client Identifier (required by DOCSIS and RFC 3315)
! 63: my $client_id = "\x00\x01\x00\x01\x0c\x00\xa1\x41\x00\x06\x5b\x50\x99\xf6";
! 64: #my $client_id = dhcp_client::duid(3);
! 65: $msg->add_option($OPT_CLIENTID, $client_id);
! 66: #$msg->add_option($OPT_CLIENTID, dhcp_client::duid(3));
! 67:
! 68: # add Elapsed Time, set to 0 on first packet (required by RFC 3315)
! 69: $msg->add_option($OPT_ELAPSED_TIME, "\x00\x00");
! 70:
! 71: # add IA_NA for each interface (required by DOCSIS and RFC 3315)
! 72: # XXX: should this be a single interface only?
! 73: my $iaid = 0;
! 74: foreach my $iface (dhcp_client::iface()) {
! 75: my $option_data = pack("NNN", ++$iaid, 0, 0);
! 76: my $enc_opt = dhcp_client::msg->new(0);
! 77: $enc_opt->add_option($OPT_CLIENTID, $client_id);
! 78: $option_data .= $enc_opt->packed_options();
! 79: $msg->add_option($OPT_IA_NA, $option_data);
! 80: }
! 81:
! 82: # add Reconfigure Accept (required by DOCSIS)
! 83: $msg->add_option($OPT_RECONF_ACCEPT, "");
! 84:
! 85: # add Options Request (required by DOCSIS, recommended by RFC 3315)
! 86: my @oro = ( $OPT_TIME_SERVERS, $OPT_TIME_OFFSET );
! 87: $msg->add_option($OPT_ORO, pack("n*", @oro));
! 88:
! 89: # add Vendor Class option (required by DOCSIS)
! 90: $msg->add_option($OPT_VENDOR_CLASS, pack("N", 4491) . "docsis3.0");
! 91:
! 92: # add Vendor-specific Information Option option (required by DOCSIS)
! 93: my $vsio = pack("N", 4491);
! 94:
! 95: # ORO (required by DOCSIS)
! 96: my @docsis_oro = ( $DOCSIS_OPT_TFTP_SERVERS );
! 97: $vsio .= pack("nnC*", $DOCSIS_OPT_ORO, 0+@docsis_oro, @docsis_oro);
! 98:
! 99: # TLV5 data: CMTS DOCSIS version number 3.0 (required by DOCSIS)
! 100: my $tlv5_data = "\x01\x02\x03\x0";
! 101: $vsio .= pack("nn", $DOCSIS_OPT_TLV5, length($tlv5_data)) . $tlv5_data;
! 102:
! 103: # DOCSIS Device (required by DOCSIS)
! 104: my $docsis_device_id = dhcp_client::mac_addr_binary();
! 105: $vsio .= pack("nn", $DOCSIS_OPT_DEVICE_ID, length($docsis_device_id));
! 106: $vsio .= $docsis_device_id;
! 107:
! 108: $msg->add_option($OPT_VENDOR_OPTS, $vsio);
! 109:
! 110: # add Rapid Commit option (required by DOCSIS)
! 111: #$msg->add_option($OPT_RAPID_COMMIT, "");
! 112:
! 113: # timeout parameters, from DOCSIS
! 114: my $IRT = $SOL_TIMEOUT;
! 115: my $MRT = $SOL_MAX_RT;
! 116: my $MRC = 4; # DOCSIS says 4, RFC 3315 says it SHOULD be 0
! 117: my $MRD = 0;
! 118:
! 119: # sleep a random amount of time between 0 and 1 second, required by RFC 3315
! 120: # XXX: this seems pretty stupid
! 121: sleep(rand($SOL_MAX_DELAY));
! 122:
! 123: my $RT;
! 124: my $count = 0;
! 125: my $mrd_end_time;
! 126: if ($MRD != 0) {
! 127: $mrd_end_time = time() + $MRD;
! 128: }
! 129: my $reply_msg;
! 130: do {
! 131: # create our socket, and send our Solicit
! 132: socket(SOCK, PF_INET6, SOCK_DGRAM, getprotobyname('udp')) || die;
! 133: my $addr = inet_pton(AF_INET6, $All_DHCP_Servers);
! 134: my $packet = $msg->packet();
! 135: my $send_ret = send(SOCK, $packet, 0,
! 136: pack_sockaddr_in6($server_port, $addr));
! 137: if (not defined($send_ret)) {
! 138: printf STDERR
! 139: "Error \%d sending DHCPv6 Solicit message;\n\%s\n",
! 140: 0+$ERRNO, $ERRNO;
! 141: exit(1);
! 142: } elsif ($send_ret != length($packet)) {
! 143: print STDERR "Unable to send entire DHCPv6 Solicit message.\n";
! 144: exit(1);
! 145: }
! 146: $count++;
! 147:
! 148: my $RAND = rand(0.2) - 0.1;
! 149: if (defined $RT) {
! 150: $RT = 2*$RT + $RAND*$RT;
! 151: if (($RT > $MRT) && ($MRT != 0)) {
! 152: $RT = $MRT + $RAND*$RT;
! 153: }
! 154: } else {
! 155: $RT = $IRT + $RAND*$IRT;
! 156: }
! 157:
! 158: my $rt_end_time = time() + $RT;
! 159: if (defined($mrd_end_time) && ($mrd_end_time > $rt_end_time)) {
! 160: $rt_end_time = $mrd_end_time;
! 161: }
! 162:
! 163: for (;;) {
! 164: my $timeout = $rt_end_time - time();
! 165: if ($timeout < 0) {
! 166: # print STDERR "Timeout waiting for DHCPv6 Advertise ",
! 167: # "or Reply message.\n";
! 168: last;
! 169: }
! 170:
! 171: my @ready = IO::Select->new(\*SOCK)->can_read($timeout);
! 172:
! 173: if (@ready) {
! 174: my $reply;
! 175: my $recv_ret;
! 176:
! 177: $recv_ret = recv(SOCK, $reply, 1500, 0);
! 178: if (not defined $recv_ret) {
! 179: printf STDERR
! 180: "Error \%d receiving DHCPv6 " .
! 181: "message;\n\%s\n",
! 182: 0+$ERRNO, $ERRNO;
! 183: exit(1);
! 184: }
! 185:
! 186: $reply_msg = dhcp_client::msg::decode($reply, 1);
! 187: if (($reply_msg->{msg_type} == $MSG_ADVERTISE) ||
! 188: ($reply_msg->{msg_type} == $MSG_REPLY)) {
! 189: last;
! 190: }
! 191: }
! 192: }
! 193:
! 194: } until ($reply_msg ||
! 195: (($MRC != 0) && ($count > $MRC)) ||
! 196: (defined($mrd_end_time) && ($mrd_end_time > time())));
! 197:
! 198: unless ($reply_msg) {
! 199: if (($MRC != 0) && ($count >= $MRC)) {
! 200: print STDERR
! 201: "No reply after maximum retransmission count.\n";
! 202: } else {
! 203: print STDERR
! 204: "No reply after maximum retransmission duration.\n";
! 205: }
! 206: }
! 207:
! 208: if ($reply_msg && ($reply_msg->{msg_type} == $MSG_REPLY)) {
! 209: print "Got DHCPv6 Reply message.\n";
! 210: #print Dumper($reply_msg), "\n";
! 211: exit(0);
! 212: }
! 213:
! 214: #print Dumper($msg), "\n";
! 215: #print Dumper($msg->packet()), "\n";
! 216: #
! 217: #print "packet length: ", length($msg->packet()), "\n";
! 218:
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