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