diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-06-03 13:54:25 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-06-03 13:54:25 +0000 |
commit | 9cb1c4df7b9ce1a9ad1312621b0f2b16a94fba3a (patch) | |
tree | 2efb72864cc69e174c9c5ee33efb88a5f1553b48 /test/TEST-30-ISCSI/ibft.pl | |
parent | Initial commit. (diff) | |
download | dracut-9cb1c4df7b9ce1a9ad1312621b0f2b16a94fba3a.tar.xz dracut-9cb1c4df7b9ce1a9ad1312621b0f2b16a94fba3a.zip |
Adding upstream version 060+5.upstream/060+5
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'test/TEST-30-ISCSI/ibft.pl')
-rw-r--r-- | test/TEST-30-ISCSI/ibft.pl | 458 |
1 files changed, 458 insertions, 0 deletions
diff --git a/test/TEST-30-ISCSI/ibft.pl b/test/TEST-30-ISCSI/ibft.pl new file mode 100644 index 0000000..c612951 --- /dev/null +++ b/test/TEST-30-ISCSI/ibft.pl @@ -0,0 +1,458 @@ +#!/usr/bin/perl +# SPDX-License-Identifier: GPL-2.0+ +# +# iBFT ACPI table generator +# $ perldoc ibft.pl if you'd like to read the manual, poor you: + +=head1 NAME + +ibft.pl - Generate iBFT ACPI table + +=head1 SYNOPSIS + +ibft.pl +[--oemid <oemid>] +[--tableid <tableid> +[--initiator isns=<ip>,slp=<ip>,radius1=<ip>,radius2=<ip>,iqn=<iqn>] +[--nic ip=<ip>[,prefix=<prefix>][,gw=<ip>][,dns1=<ip>][,dns2=<ip>][,dhcp=<ip>][,vlan=<id>][,mac=<mac>][,pci=<pci>][,hostname=<hostname>] ...] +[--target ip=<ip>[,port=<port>][,lun=<lun>][,name=<iqn> ...] + +=head1 DESCRIPTION + +B<ibft.pl> creates an image of iBFT ACPI table similar to what a real network +boot firmware would do. This is mainly useful for testing. + +=head1 OPTIONS + +=over 4 + +=item B<< --oemid <oemid> >> + +Create a table with a particular OEM ID, limited to 6 characters. +It generally doesn't matter. + +Defaults to I<DRACUT>. + +=item B<< --tableid <tableid> >> + +Create a table with a particular OEM Table ID. + +Defaults to I<TEST>, but any four-letter word would do. Any. + +=item B<< --initiator >> + +Configure the Initiator Structure. +Following parameters are supported: + +=over 4 + +=item B<< isns=<ip> >> + +iSNS server address. + +=item B<< slp=<ip> >> + +SLP server address. + +=item B<< radius1=<ip> >>, B<< radius2=<ip> >> + +Primary and secondary Radius server addresses. + +=item B<< iqn=<iqn> >> + +Override the IQN, which defaults to I<iqn.2009-06.dracut:initiator0>. + +=back + +=item B<< --nic >> + +Configure a NIC Structure. This option can be used up multiple times. + +Following parameters are supported: + +=over 4 + +=item B<< ip=<ip> >> + +Set the IP address. Both I<AF_INET> and I<AF_INET6> families are supported. +This parameter is mandatory. + +=item B<< prefix=<prefix> >> + +Set the IP address prefix. You generally also want to set this in order to +get a sensible iBFT. + +=item B<< gw=<ip> >> + +Set the gateway IP address. + +=item B<< dns1=<ip> >>, B<< dns2=<ip> >> + +Set the domain service server addresses. + +=item B<< dhcp=<ip> >> + +Specify the address of the DHCP server in case dynamic configuration is used. + +=item B<< vlan=<id> >> + +The VLAN Id. Duh. + +=item B<< mac=<mac> >> + +Specify the ethernet hardware address, in form of six colon-delimited +hexadecimal octets. + +=item B<< pci=<pci> >> + +Specify the ethernet hardware's PCI bus location, in form of +B<< <bus> >>:B<< <device> >>.B<< <function> >> where the numbers are in +hexadecimal. + +=item B<< hostname=<hostname> >> + +The host name. Defaults to B<client>. + +=back + +=item B<< --target >> + +Configure a Target Structure. This option can be used multiple times. + +Following parameters are supported: + +=over 4 + +=item B<< ip=<ip> >> + +The iSCSI target IP address. + +=item B<< port=<port> >> + +The iSCSI TCP port, in case the default of I<3260> is not good enough for +you. + +=item B<< lun=<1> >> + +The LUN number. Defaults to I<1> no less. + +=item B<< name=<iqn> >> + +The iSCSI volume name. Defaults to I<iqn.2009-06.dracut:target0> for the first +target, I<iqn.2009-06.dracut:target1> for the second one. + +=back + +=back + +=cut + +use strict; +use warnings; + +sub ip4 { + shift =~ /^(\d+)\.(\d+)\.(\d+)\.(\d+)$/ + or die 'not an INET address'; + return (map { 0x00 } 0..9), 0xff, 0xff, $1, $2, $3, $4; +} + +sub ip6 +{ + my ($beg, $end) = map { [ map { /^([0-9a-fA-F]{0,2}?)([0-9a-fA-F]{1,2})$/ + ? (hex $1, hex $2) + : die "'$_' not valid in a INET6 address" + } split /:/ ] } split /::/, shift; + + $beg ||= []; + $end ||= []; + + my $fill = 16 - scalar @$beg + scalar@$end; + die 'INET6 address too long' if $fill < 0; + + @$beg, (map { 0 } 1..$fill), @$end; +} + +sub ip +{ + my @val; + @val = eval { @val = ip6 ($_[0]) }; + @val = eval { @val = ip4 ($_[0]) } unless @val; + die "Saatana: $_[0] is not an INET or INET6 address" unless @val; + + return pack 'C16', @val; +} + +sub mac +{ + return pack 'C8', map { hex $_ } split /:/, shift; +} + +sub pci +{ + shift =~ /^([0-9a-fA-F]{1,2}?):([0-9a-fA-F]{1,2})\.([0-9a-fA-F]+)$/ + or die 'Not a PCI address'; + return (hex $1) << 8 | (hex $2) << 3 | (hex $3); +} + +sub lun +{ + return pack 'C8', 0, shift, 0, 0, 0, 0, 0, 0; +} + +# signature, length, revision, checksum, oem_id, oem_table_id, reserved +sub pack_table_hdr { pack 'a4 V C C a6 a8 a24 x![C8]', @_ } + +# id, version, length, index, flags +# extensions, initiator_off, nic0_off, tgt0_off, nic1_off, tgt1_off, ext* +sub pack_control { pack 'C C S C C S S S S S S S* x![C8]', @_ } + +# id, version, length, index, flags +# isns_adr, slp_adr, radius1_adr, radius2_adr, iqn_len, iqn_off +sub pack_initiator { pack 'C C S C C a16 a16 a16 a16 SS x![C8]', @_ } + +# id, version, length, index, flags +# adr, prefix, origin, gw, dns1, dns2, dhcp, vlan_id, mac, pci_bdf, hostname_len, hostname_off +sub pack_nic { $_[5] ? pack 'C C S C C a16 C C a16 a16 a16 a16 S a6 S SS x![C8]', @_ : '' } + +# id, version, length, index, flags +# tgt_adr, tgt_port, tgt_lun, chap_type, nic_id, tgt_len, tgt_off, +# chap_name_len, chap_name_off, chap_secret_len, chap_secret_off +# rchap_name_len, rchap_name_off, rchap_secret_len, rchap_secret_off +sub pack_tgt { $_[5] ? pack 'C C S C C a16 S a8 C C SS SS SS SS SS x![C8]', @_ : '' }; + +# str +sub pack_str { pack 'Z*', @_ } + +# Initialize some defaults +my @table_hdr = ('iBFT', 0000, 1, 0000, 'DRACUT', 'TEST', ''); +my @control = (1, 1, 18, 0, 0, 0000, 0000, 0000, 0000, 0000, 0000); +my @initiator = (2, 1, 74, 0, 0x03, '', '', '', '', (0000, 0000)); +my @nics; +my @tgts; +my $iqn = 'iqn.2009-06.dracut:initiator0'; +my @hostnames; +my @tgt_names; + +while (@ARGV) { + my $arg = shift @ARGV; + die "Saatana: $arg is missing an argument" unless @ARGV; + + if ($arg eq '--oemid') { + $table_hdr[4] = shift @ARGV; + } elsif ($arg eq '--tableid') { + $table_hdr[5] = shift @ARGV; + } elsif ($arg eq '--initiator') { + my %val = split /[,=]/, shift @ARGV; + $initiator[5] = ip (delete $val{isns}) if exists $val{isns}; + $initiator[6] = ip (delete $val{slp}) if exists $val{slp}; + $initiator[7] = ip (delete $val{radius1}) if exists $val{radius1}; + $initiator[8] = ip (delete $val{radius2}) if exists $val{radius2}; + $iqn = delete $val{iqn} if exists $val{iqn}; + die "Saatana: Extra arguments to --initiator: ".join (', ', %val) if %val; + } elsif ($arg eq '--nic') { + my @nic = (3, 1, 102, 0, 0x03, + undef, 0, 0x01, '', '', '', '', 0, '', 0, (0000, 0000)); + push @nics, \@nic; + + my %val = split /[,=]/, shift @ARGV; + die 'Saatana: --nic needs an ip' unless exists $val{ip}; + $nic[3] = $#nics; + $nic[5] = ip (delete $val{ip}); + $nic[6] = delete $val{prefix} if exists $val{prefix}; + $nic[7] = 0x03 if exists $val{dhcp}; + $nic[8] = ip (delete $val{gw}) if exists $val{gw}; + $nic[9] = ip (delete $val{dns1}) if exists $val{dns1}; + $nic[10] = ip (delete $val{dns2}) if exists $val{dns2}; + $nic[11] = ip (delete $val{dhcp}) if exists $val{dhcp}; + $nic[12] = delete $val{vlan} if exists $val{vlan}; + $nic[13] = mac (delete $val{mac}) if exists $val{mac}; + $nic[14] = pci (delete $val{pci}) if exists $val{pci}; + $hostnames[$#nics] = exists $val{hostname} ? delete $val{hostname} : 'client'; + $hostnames[$#nics] = pack_str $hostnames[$#nics]; + die "Saatana: Extra arguments to --nic: ".join (', ', %val) if %val; + + # Allocate an control expansion entry + if ($#nics > 1) { + $control[2] += 2; + push @control, (0x4444); + } + } elsif ($arg eq '--target') { + my @tgt = (4, 1, 54, 0, 0x03, + undef, 3260, lun (1), 0, 0, + (0000, 0000), + (0000, 0000), + (0000, 0000), + (0000, 0000), + (0000, 0000)); + push @tgts, \@tgt; + + my %val = split /[,=]/, shift @ARGV; + die 'Saatana: --target needs an ip' unless exists $val{ip}; + $tgt[3] = $#tgts; + $tgt[5] = ip (delete $val{ip}) if exists $val{ip}; + $tgt[6] = delete $val{port} if exists $val{port}; + $tgt[7] = lun (delete $val{lun}) if exists $val{lun}; + $tgt[9] = delete $val{nic} if exists $val{nic}; + $tgt_names[$#tgts] = exists $val{name} ? delete $val{name} + : 'iqn.2009-06.dracut:target'.$#tgts; + $tgt_names[$#tgts] = pack_str $tgt_names[$#tgts]; + die "Saatana: Extra arguments to --target: ".join (', ', %val) if %val; + + # Allocate an control expansion entry if necessary + if ($#tgts > 1) { + $control[2] += 2; + push @control, (0x1111); + } + } else { + die "Saatana: Unknown argument: $arg"; + } +} + +# Pass 1 +my $table_hdr = pack_table_hdr @table_hdr; +my $control = pack_control @control; +my $initiator = pack_initiator @initiator; +my @packed_nics = map { pack_nic @$_ } @nics; +my @packed_tgts = map { pack_tgt @$_ } @tgts; +$iqn = pack_str $iqn; + + +# Resolve the offsets +my $len = 0; +$len += length $table_hdr; +$len += length $control; +$control[6] = $len; +$len += length $initiator; + +for my $i (0..$#packed_nics) { + if ($i == 0) { + # NIC 0 + $control[7] = $len; + } elsif ($i == 1) { + # NIC 1 + $control[9] = $len; + } else { + # Expansion + $control[11 + $i - 2] = $len; + } + $len += length $packed_nics[$i]; +} + +for my $i (0..$#packed_tgts) { + if ($i == 0) { + # Target 0 + $control[8] = $len; + } elsif ($i == 1) { + # Target 1 + $control[10] = $len; + } else { + # Expansion + $control[11 + scalar @packed_nics - 2 + $i - 2] = $len; + } + $len += length $packed_tgts[$i]; +} + +$initiator[9] = -1 + length $iqn; +$initiator[10] = $len; +$len += length $iqn; + +for my $i (0..$#hostnames) { + $nics[$i]->[15] = -1 + length $hostnames[$i]; + $nics[$i]->[16] = $len; + $len += length $hostnames[$i]; +} + +for my $i (0..$#tgt_names) { + $tgts[$i]->[10] = -1 + length $tgt_names[$i]; + $tgts[$i]->[11] = $len; + $len += length $tgt_names[$i]; +} + +@table_hdr[1] = $len; + +# Pass 2, with the offsets resolved +$table_hdr = pack_table_hdr @table_hdr; +$control = pack_control @control; +$initiator = pack_initiator @initiator; +@packed_nics = map { pack_nic @$_ } @nics; +@packed_tgts = map { pack_tgt @$_ } @tgts; + +# Pass 3, calculate checksum +my $cksum = 0xff; +$cksum += ord $_ foreach split //, join '', $table_hdr, $control, $initiator, + @packed_nics, @packed_tgts, $iqn, @hostnames, @tgt_names; +$cksum = ~$cksum & 0xff; +$table_hdr[3] = $cksum; +$table_hdr = pack_table_hdr @table_hdr; + +# Puke stuff out +print $table_hdr; +print $control; +print $initiator; +print @packed_nics; +print @packed_tgts; +print $iqn; +print @hostnames; +print @tgt_names; + +=head1 EXAMPLES + +=over + +=item B<< perl ibft.pl --oemid FENSYS --tableid iPXE --nic ip=192.168.50.101,prefix=24,gw=192.168.50.1,dns1=192.168.50.1,dhcp=192.168.50.1,vlan=0,mac=52:54:00:12:34:00,pci=00:02.0,hostname=iscsi-1 --target ip=192.168.50.1 >ibft.img >> + +Generate an iBFT image with a single NIC while pretending we're iPXE for +no good reason. + +=item B<<perl ibft.pl --initiator iqn=iqn.1994-05.com.redhat:633114aacf2 --nic ip=192.168.50.101,prefix=24,gw=192.168.50.1,dns1=192.168.50.1,dhcp=192.168.50.1,mac=52:54:00:12:34:00,pci=00:03.0 --nic ip=192.168.51.101,prefix=24,gw=192.168.51.1,dns1=192.168.51.1,dhcp=192.168.51.1,mac=52:54:00:12:34:01,pci=00:04.0 --target ip=192.168.50.1,port=3260,lun=1,name=iqn.2009-06.dracut:target0 --target ip=192.168.51.1,port=3260,lun=2,name=iqn.2009-06.dracut:target1 >ibft.img >> + +Generate an iBFT image for two NICs while being slightly more expressive +than necessary. + +=item B<qemy-system-x86_64 -acpitable file=ibft.img> + +Use the image with QEMU. + +=back + +=head1 BUGS + +No support for CHAP secrets. + +=head1 SEE ALSO + +=over 4 + +=item L<qemu(1)>, + +=item L<iSCSI Boot Firmware Table (iBFT)|ftp://ftp.software.ibm.com/systems/support/bladecenter/iscsi_boot_firmware_table_v1.03.pdf>, + +=item L<NL_PREFIX_ORIGIN Enumeration|https://docs.microsoft.com/en-us/windows/win32/api/nldef/ne-nldef-nl_prefix_origin> + +=back + +=head1 COPYRIGHT + +Copyright (C) 2019 Lubomir Rintel + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see <http://www.gnu.org/licenses/>. + +=head1 AUTHOR + +Lubomir Rintel C<lkundrak@v3.sk> + +=cut + +# Forgive me. +# This would have been much easier with FORTH. |