+++ /dev/null
-package PVE::Storage::LunCmd::Iet;
-
-# iscsi storage running Debian
-# 1) apt-get install iscsitarget iscsitarget-dkms
-# 2) Create target like (/etc/iet/ietd.conf):
-# Target iqn.2001-04.com.example:tank
-# Alias tank
-# 3) Activate daemon (/etc/default/iscsitarget)
-# ISCSITARGET_ENABLE=true
-# 4) service iscsitarget start
-#
-# On one of the proxmox nodes:
-# 1) Login as root
-# 2) ssh-copy-id <ip_of_iscsi_storage>
-
-use strict;
-use warnings;
-use PVE::Tools qw(run_command file_read_firstline trim dir_glob_regex dir_glob_foreach);
-use Data::Dumper;
-
-sub get_base;
-
-# A logical unit can max have 16864 LUNs
-# http://manpages.ubuntu.com/manpages/precise/man5/ietd.conf.5.html
-my $MAX_LUNS = 16864;
-
-my $CONFIG_FILE = '/etc/iet/ietd.conf';
-my $DAEMON = '/usr/sbin/ietadm';
-my $SETTINGS = undef;
-my $CONFIG = undef;
-my $OLD_CONFIG = undef;
-
-my @ssh_opts = ('-o', 'BatchMode=yes');
-my @ssh_cmd = ('/usr/bin/ssh', @ssh_opts);
-my @scp_cmd = ('/usr/bin/scp', @ssh_opts);
-my $ietadm = '/usr/sbin/ietadm';
-
-my $execute_command = sub {
- my ($scfg, $exec, $timeout, $method, @params) = @_;
-
- my $msg = '';
- my $err = undef;
- my $target;
- my $cmd;
- my $res = ();
-
- $timeout = 10 if !$timeout;
-
- my $output = sub {
- my $line = shift;
- $msg .= "$line\n";
- };
-
- my $errfunc = sub {
- my $line = shift;
- $err .= "$line";
- };
-
- $target = 'root@' . $scfg->{portal};
-
- if ($exec eq 'scp') {
- $cmd = [@scp_cmd, $method, "$target:$params[0]"];
- } else {
- $cmd = [@ssh_cmd, $target, $method, @params];
- }
-
- print Dumper($cmd);
- eval {
- run_command($cmd, outfunc => $output, errfunc => $errfunc, timeout => $timeout);
- };
- if ($@) {
- $res = {
- result => 0,
- msg => $err,
- }
- } else {
- $res = {
- result => 1,
- msg => $msg,
- }
- }
-
- return $res;
-};
-
-my $read_config = sub {
- my ($scfg, $timeout) = @_;
-
- my $msg = '';
- my $err = undef;
- my $luncmd = 'cat';
- my $target;
- $timeout = 10 if !$timeout;
-
- my $output = sub {
- my $line = shift;
- $msg .= "$line\n";
- };
-
- my $errfunc = sub {
- my $line = shift;
- $err .= "$line";
- };
-
- $target = 'root@' . $scfg->{portal};
-
- my $cmd = [@ssh_cmd, $target, $luncmd, $CONFIG_FILE];
- eval {
- run_command($cmd, outfunc => $output, errfunc => $errfunc, timeout => $timeout);
- };
- if ($@) {
- die $err if ($err !~ /No such file or directory/);
- die "No configuration found. Install iet on $scfg->{portal}" if $msg eq '';
- }
-
- return $msg;
-};
-
-my $get_config = sub {
- my ($scfg) = @_;
- my @conf = undef;
-
- my $config = $read_config->($scfg, undef);
- die "Missing config file" unless $config;
-
- $OLD_CONFIG = $config;
-
- return $config;
-};
-
-my $parser = sub {
- my ($scfg) = @_;
-
- my $line = 0;
-
- my $base = get_base;
- my $config = $get_config->($scfg);
- my @cfgfile = split "\n", $config;
-
- my $cfg_target = 0;
- foreach (@cfgfile) {
- $line++;
- if ($_ =~ /^\s*Target\s*([\w\-\:\.]+)\s*$/) {
- if ($1 eq $scfg->{target} && ! $cfg_target) {
- # start colect info
- die "$line: Parse error [$_]" if $SETTINGS;
- $SETTINGS->{target} = $1;
- $cfg_target = 1;
- } elsif ($1 eq $scfg->{target} && $cfg_target) {
- die "$line: Parse error [$_]";
- } elsif ($cfg_target) {
- $cfg_target = 0;
- $CONFIG .= "$_\n";
- } else {
- $CONFIG .= "$_\n";
- }
- } else {
- if ($cfg_target) {
- $SETTINGS->{text} .= "$_\n";
- next if ($_ =~ /^\s*#/ || ! $_);
- my $option = $_;
- if ($_ =~ /^(\w+)\s*#/) {
- $option = $1;
- }
- if ($option =~ /^\s*(\w+)\s+(\w+)\s*$/) {
- if ($1 eq 'Lun') {
- die "$line: Parse error [$_]";
- }
- $SETTINGS->{$1} = $2;
- } elsif ($option =~ /^\s*(\w+)\s+(\d+)\s+([\w\-\/=,]+)\s*$/) {
- die "$line: Parse error [$option]" unless ($1 eq 'Lun');
- my $conf = undef;
- my $num = $2;
- my @lun = split ',', $3;
- die "$line: Parse error [$option]" unless (scalar(@lun) > 1);
- foreach (@lun) {
- my @lun_opt = split '=', $_;
- die "$line: Parse error [$option]" unless (scalar(@lun_opt) == 2);
- $conf->{$lun_opt[0]} = $lun_opt[1];
- }
- if ($conf->{Path} && $conf->{Path} =~ /^$base\/$scfg->{pool}\/([\w\-]+)$/) {
- $conf->{include} = 1;
- } else {
- $conf->{include} = 0;
- }
- $conf->{lun} = $num;
- push @{$SETTINGS->{luns}}, $conf;
- } else {
- die "$line: Parse error [$option]";
- }
- } else {
- $CONFIG .= "$_\n";
- }
- }
- }
- $CONFIG =~ s/^\s+|\s+$|"\s*//g;
-};
-
-my $update_config = sub {
- my ($scfg) = @_;
- my $file = "/tmp/config$$";
- my $config = '';
-
- while ((my $option, my $value) = each(%$SETTINGS)) {
- next if ($option eq 'include' || $option eq 'luns' || $option eq 'Path' || $option eq 'text' || $option eq 'used');
- if ($option eq 'target') {
- $config = "\n\nTarget " . $SETTINGS->{target} . "\n" . $config;
- } else {
- $config .= "\t$option\t\t\t$value\n";
- }
- }
- foreach my $lun (@{$SETTINGS->{luns}}) {
- my $lun_opt = '';
- while ((my $option, my $value) = each(%$lun)) {
- next if ($option eq 'include' || $option eq 'lun' || $option eq 'Path');
- if ($lun_opt eq '') {
- $lun_opt .= $option . '=' . $value;
- } else {
- $lun_opt .= ',' . $option . '=' . $value;
- }
- }
- $config .= "\tLun $lun->{lun} Path=$lun->{Path},$lun_opt\n";
- }
- open(my $fh, '>', $file) or die "Could not open file '$file' $!";
-
- print $fh $CONFIG;
- print $fh $config;
- close $fh;
-
- my @params = ($CONFIG_FILE);
- my $res = $execute_command->($scfg, 'scp', undef, $file, @params);
- unlink $file;
-
- die $res->{msg} unless $res->{result};
-};
-
-my $get_target_tid = sub {
- my ($scfg) = @_;
- my $proc = '/proc/net/iet/volume';
- my $tid = undef;
-
- my @params = ($proc);
- my $res = $execute_command->($scfg, 'ssh', undef, 'cat', @params);
- die $res->{msg} unless $res->{result};
- my @cfg = split "\n", $res->{msg};
-
- foreach (@cfg) {
- if ($_ =~ /^\s*tid:(\d+)\s+name:([\w\-\:\.]+)\s*$/) {
- if ($2 && $2 eq $scfg->{target}) {
- $tid = $1;
- last;
- }
- }
- }
-
- return $tid;
-};
-
-my $get_lu_name = sub {
- my $used = ();
- my $i;
-
- if (! exists $SETTINGS->{used}) {
- for ($i = 0; $i < $MAX_LUNS; $i++) {
- $used->{$i} = 0;
- }
- foreach my $lun (@{$SETTINGS->{luns}}) {
- $used->{$lun->{lun}} = 1;
- }
- $SETTINGS->{used} = $used;
- }
-
- $used = $SETTINGS->{used};
- for ($i = 0; $i < $MAX_LUNS; $i++) {
- last unless $used->{$i};
- }
- $SETTINGS->{used}->{$i} = 1;
-
- return $i;
-};
-
-my $init_lu_name = sub {
- my $used = ();
-
- if (! exists($SETTINGS->{used})) {
- for (my $i = 0; $i < $MAX_LUNS; $i++) {
- $used->{$i} = 0;
- }
- $SETTINGS->{used} = $used;
- }
- foreach my $lun (@{$SETTINGS->{luns}}) {
- $SETTINGS->{used}->{$lun->{lun}} = 1;
- }
-};
-
-my $free_lu_name = sub {
- my ($lu_name) = @_;
- my $new;
-
- foreach my $lun (@{$SETTINGS->{luns}}) {
- if ($lun->{lun} != $lu_name) {
- push @$new, $lun;
- }
- }
-
- $SETTINGS->{luns} = $new;
- $SETTINGS->{used}->{$lu_name} = 0;
-};
-
-my $make_lun = sub {
- my ($scfg, $path) = @_;
-
- die 'Maximum number of LUNs per target is 16384' if scalar @{$SETTINGS->{luns}} >= $MAX_LUNS;
-
- my $lun = $get_lu_name->();
- my $conf = {
- lun => $lun,
- Path => $path,
- Type => 'blockio',
- include => 1,
- };
- push @{$SETTINGS->{luns}}, $conf;
-
- return $conf;
-};
-
-my $list_view = sub {
- my ($scfg, $timeout, $method, @params) = @_;
- my $lun = undef;
-
- my $object = $params[0];
- foreach my $lun (@{$SETTINGS->{luns}}) {
- next unless $lun->{include} == 1;
- if ($lun->{Path} =~ /^$object$/) {
- return $lun->{lun} if (defined($lun->{lun}));
- die "$lun->{Path}: Missing LUN";
- }
- }
-
- return $lun;
-};
-
-my $list_lun = sub {
- my ($scfg, $timeout, $method, @params) = @_;
- my $name = undef;
-
- my $object = $params[0];
- foreach my $lun (@{$SETTINGS->{luns}}) {
- next unless $lun->{include} == 1;
- if ($lun->{Path} =~ /^$object$/) {
- return $lun->{Path};
- }
- }
-
- return $name;
-};
-
-my $create_lun = sub {
- my ($scfg, $timeout, $method, @params) = @_;
-
- if ($list_lun->($scfg, $timeout, $method, @params)) {
- die "$params[0]: LUN exists";
- }
- my $lun = $params[0];
- $lun = $make_lun->($scfg, $lun);
- my $tid = $get_target_tid->($scfg);
- $update_config->($scfg);
-
- my $path = "Path=$lun->{Path},Type=$lun->{Type}";
-
- @params = ('--op', 'new', "--tid=$tid", "--lun=$lun->{lun}", '--params', $path);
- my $res = $execute_command->($scfg, 'ssh', $timeout, $ietadm, @params);
- do {
- $free_lu_name->($lun->{lun});
- $update_config->($scfg);
- die $res->{msg};
- } unless $res->{result};
-
- return $res->{msg};
-};
-
-my $delete_lun = sub {
- my ($scfg, $timeout, $method, @params) = @_;
- my $res = {msg => undef};
-
- my $path = $params[0];
- my $tid = $get_target_tid->($scfg);
-
- foreach my $lun (@{$SETTINGS->{luns}}) {
- if ($lun->{Path} eq $path) {
- @params = ('--op', 'delete', "--tid=$tid", "--lun=$lun->{lun}");
- $res = $execute_command->($scfg, 'ssh', $timeout, $ietadm, @params);
- if ($res->{result}) {
- $free_lu_name->($lun->{lun});
- $update_config->($scfg);
- last;
- } else {
- die $res->{msg};
- }
- }
- }
-
- return $res->{msg};
-};
-
-my $import_lun = sub {
- my ($scfg, $timeout, $method, @params) = @_;
-
- return $create_lun->($scfg, $timeout, $method, @params);
-};
-
-my $modify_lun = sub {
- my ($scfg, $timeout, $method, @params) = @_;
- my $lun;
- my $res;
-
- my $path = $params[1];
- my $tid = $get_target_tid->($scfg);
-
- foreach my $cfg (@{$SETTINGS->{luns}}) {
- if ($cfg->{Path} eq $path) {
- $lun = $cfg;
- last;
- }
- }
-
- @params = ('--op', 'delete', "--tid=$tid", "--lun=$lun->{lun}");
- $res = $execute_command->($scfg, 'ssh', $timeout, $ietadm, @params);
- die $res->{msg} unless $res->{result};
-
- $path = "Path=$lun->{Path},Type=$lun->{Type}";
- @params = ('--op', 'new', "--tid=$tid", "--lun=$lun->{lun}", '--params', $path);
- $res = $execute_command->($scfg, 'ssh', $timeout, $ietadm, @params);
- die $res->{msg} unless $res->{result};
-
- return $res->{msg};
-};
-
-my $add_view = sub {
- my ($scfg, $timeout, $method, @params) = @_;
-
- return '';
-};
-
-my $get_lun_cmd_map = sub {
- my ($method) = @_;
-
- my $cmdmap = {
- create_lu => { cmd => $create_lun },
- delete_lu => { cmd => $delete_lun },
- import_lu => { cmd => $import_lun },
- modify_lu => { cmd => $modify_lun },
- add_view => { cmd => $add_view },
- list_view => { cmd => $list_view },
- list_lu => { cmd => $list_lun },
- };
-
- die "unknown command '$method'" unless exists $cmdmap->{$method};
-
- return $cmdmap->{$method};
-};
-
-sub run_lun_command {
- my ($scfg, $timeout, $method, @params) = @_;
-
- $parser->($scfg) unless $SETTINGS;
- my $cmdmap = $get_lun_cmd_map->($method);
- my $msg = $cmdmap->{cmd}->($scfg, $timeout, $method, @params);
-
- return $msg;
-}
-
-sub get_base {
- return '/dev';
-}
-
-1;
projects / pve-storage.git / blobdiff