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-rw-r--r--lib/network/pxe.pm286
1 files changed, 286 insertions, 0 deletions
diff --git a/lib/network/pxe.pm b/lib/network/pxe.pm
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index 0000000..1bc625a
--- /dev/null
+++ b/lib/network/pxe.pm
@@ -0,0 +1,286 @@
+package network::pxe;
+
+use common;
+use network::tools;
+use Xconfig::resolution_and_depth;
+
+our $tftp_root = "/var/lib/tftpboot";
+my $client_path = '/X86PC/linux';
+our $pxelinux_client_root = $tftp_root . $client_path;
+our $pxelinux_images = $pxelinux_client_root . '/images';
+our $pxelinux_help_file = $pxelinux_client_root . '/help.txt';
+our $pxelinux_message_file = $pxelinux_client_root . '/messages';
+my $pxelinux_config_root = $pxelinux_client_root . '/pxelinux.cfg';
+our $pxelinux_config_file = $pxelinux_config_root . '/default';
+our $pxe_config_file = '/etc/pxe.conf';
+
+my @global_pxelinux_settings = qw(PROMPT DEFAULT DISPLAY TIMEOUT F1);
+my @append_settings = qw(initrd ramdisk_size vga display auto_install);
+my @automatic_settings = qw(method interface network server directory);
+
+our %vga_bios_to_resolution = (
+ 'normal' => "vga",
+ 'text' => "text",
+ '' => "automatic",
+ map { $_->{bios} => "$_->{X}x$_->{Y}" } grep { $_->{Depth} == 16 } Xconfig::resolution_and_depth::bios_vga_modes()
+ );
+our %vga_resolution_to_bios = reverse %vga_bios_to_resolution;
+
+sub read_pxelinux_help {
+ my ($help_file) = @_;
+ my %info;
+ foreach (cat_($help_file)) {
+ /^(\w+)\s*:\s*(.*)$/ and $info{$1} = $2;
+ }
+ \%info;
+}
+
+sub read_pxelinux_conf {
+ my ($conf_file, $help_file) = @_;
+ my (%conf);
+ my $info = read_pxelinux_help($help_file);
+ my $entry = {};
+ foreach (cat_($conf_file)) {
+ my $global = join('|', @global_pxelinux_settings);
+ if (/^($global)\s+(.*)/) {
+ $conf{lc($1)} = $2;
+ } elsif (/^label\s+(.*)/) {
+ $entry->{label} = $1;
+ } elsif (/^\s+LOCALBOOT\s+(\d+)/) {
+ $entry->{localboot} = $1;
+ } elsif (/^\s+KERNEL\s+(.*)/) {
+ $entry->{kernel} = $1;
+ } elsif (/^\s+APPEND\s+(.*)/) {
+ my @others;
+ foreach (split /\s+/, $1) {
+ my ($option, $value) = /^(.+?)(?:=(.*))?$/;
+ if (member($option, @append_settings)) {
+ $entry->{$option} = $value;
+ } elsif ($option eq 'automatic') {
+ foreach (split /,/, $value) {
+ my ($option, $value) = /^(.+?):(.+)$/;
+ $entry->{$option} = $value;
+ }
+ } else {
+ push @others, $_;
+ }
+ }
+ $entry->{others} = join(' ', @others);
+ }
+ if (exists $entry->{label} && (exists $entry->{localboot} || exists $entry->{kernel} && exists $entry->{initrd})) {
+ $entry->{info} = $info->{$entry->{label}};
+ push @{$conf{entries}}, $entry;
+ $entry = {};
+ }
+ }
+ \%conf;
+}
+
+
+sub list_pxelinux_labels {
+ my ($conf) = @_;
+ map { $_->{label} } @{$conf->{entries}};
+}
+
+sub write_pxelinux_conf {
+ my ($conf, $conf_file) = @_;
+
+ output($conf_file,
+ join("\n",
+ "# DO NOT EDIT auto_generated by drakpxelinux.pl",
+ (map { $_ . ' ' . $conf->{lc($_)} } @global_pxelinux_settings),
+ '',
+ (map {
+ my $e = $_;
+ my $automatic = join(',', map { "$_:$e->{$_}" } grep { $e->{$_} } @automatic_settings);
+ ("label $e->{label}",
+ exists $e->{localboot} ?
+ " LOCALBOOT $e->{localboot}" :
+ (" KERNEL $e->{kernel}",
+ " APPEND " . join(' ',
+ (map { "$_=$e->{$_}" } grep { $e->{$_} } @append_settings),
+ if_($automatic, "automatic=$automatic"),
+ $e->{others})),
+ '');
+ } @{$conf->{entries}})));
+}
+
+sub write_default_pxe_messages {
+ my ($net) = @_;
+ my $hostname = $net->{hostname} || chomp_(`hostname`);
+ output($pxelinux_message_file, <<EOF);
+
+ Welcome to Mandriva Linux PXE Server
+ Pxelinux
+ . .-----------------------------------.
+ /|\\ / Press F1 for available images \\
+ /_|_\\ \\ Hosted by $hostname
+ \\ | / _ /'-----------------------------------'
+ \\|/ (') /
+ '. U / (O__
+ . '. / (o_ (o_ (0_ //\\
+ {o_ (o_ (o_ (o_ (o_ //\\ //\\ //\\ // )
+ (')_ (`)_ (/)_ (/)_ (/)_ V_/_ V_/_ V_/_ V__/_
+ ---------------------------------------------------------
+
+ press F1 for help
+EOF
+}
+
+sub write_default_pxe_help() {
+ output($pxelinux_help_file, <<EOF);
+Available images are:
+---------------------
+local: local boot
+EOF
+}
+
+sub add_in_help {
+ my ($NAME, $INFO) = @_;
+ if (!any { /$NAME/ } cat_($pxelinux_help_file)) {
+ append_to_file($pxelinux_help_file, <<EOF);
+$NAME : $INFO
+EOF
+
+ } else {
+ substInFile {
+ s/$NAME.*/$NAME : $INFO/;
+ } $pxelinux_help_file;
+ }
+}
+
+sub change_label_in_help {
+ my ($NAMEOLD, $NEWNAME) = @_;
+ substInFile {
+ s/$NAMEOLD\s(.*)/$NEWNAME $1/;
+ } $pxelinux_help_file;
+}
+
+# remove entry in help.txt
+sub remove_in_help {
+ my ($NAME) = @_;
+ substInFile {
+ s/^$NAME\s:.*//x;
+ s/^\s*$//;
+ } $pxelinux_help_file;
+}
+
+# adjust pxe confi with good value
+sub write_pxe_conf {
+ my ($net, $interface) = @_;
+ if (!-f "$pxe_config_file.orig") { cp_af($pxe_config_file, "$pxe_config_file.orig") }
+ my $domainname = $net->{resolv}{domainname} || chomp_(`dnsdomainname`);
+ my $ip_address = network::tools::get_interface_ip_address($net, $interface);
+
+ substInFile {
+ s/default_address.*/default_address=$ip_address/;
+ s/mtftp_address.*/mtftp_address=$ip_address/;
+ s/domain.*/domain=$domainname/;
+ } $pxe_config_file;
+}
+
+
+sub get_pxelinux_config_file_for_mac_address {
+ my ($mac_address) = @_;
+ #- 01 is the hardware type: Ethernet (ARP type 1)
+ $pxelinux_config_root . "/" . join('-', '01', split(/:/, $mac_address));
+}
+
+sub set_profile_for_mac_address {
+ my ($profile, $to_install, $mac_address) = @_;
+ if ($profile) {
+ symlinkf("profiles/" . ($to_install ? "install/" : "boot/") . $profile, get_pxelinux_config_file_for_mac_address($mac_address));
+ } else {
+ unlink get_pxelinux_config_file_for_mac_address($mac_address);
+ }
+}
+
+#- returns (profile_type, profile_name)
+sub profile_from_file {
+ my ($file) = @_;
+ $file =~ m!(?:^|/)profiles/(\w+)/(.*)?$!;
+}
+
+sub read_profiles() {
+ my %profiles_conf;
+
+ foreach (all($pxelinux_config_root)) {
+ my $file = $pxelinux_config_root . '/' . $_;
+ if (-l $file && /^01(?:-([0-9a-z]{2}))+$/) {
+ #- per MAC address settings
+ #- the filename looks like 01-aa-bb-cc-dd-ee-ff
+ #- where AA:BB:CC:DD:EE:FF is the MAC address
+ my ($type, $name) = profile_from_file(readlink($file));
+ tr/-/:/;
+ my $mac_address = substr($_, 3);
+ $profiles_conf{per_mac}{$mac_address} = { profile => $name, to_install => $type eq 'install' };
+ }
+ }
+
+ foreach my $type (qw(boot install)) {
+ my $root = $pxelinux_config_root . '/profiles/' . $type;
+ mkdir_p($root);
+ $profiles_conf{profiles}{$type}{$_} = 1 foreach all($root);
+ }
+
+ \%profiles_conf;
+}
+
+#- returns (pxelinux entries file, help file)
+sub get_pxelinux_profile_path {
+ my ($profile, $type) = @_;
+ my $root = $pxelinux_config_root . '/profiles/' . $type;
+ "$root/$profile", "$root/help-$profile.txt";
+}
+
+sub list_profiles {
+ my ($profiles_conf) = @_;
+ sort(uniq(map { keys %{$profiles_conf->{profiles}{$_}} } qw(boot install)));
+}
+
+sub profile_exists {
+ my ($profiles_conf, $profile) = @_;
+ member($profile, network::pxe::list_profiles($profiles_conf));
+}
+
+sub find_next_profile_name {
+ my ($profiles_conf, $prefix) = @_;
+ my $i;
+ /^$prefix(\d*)$/ && $1 >= $i and $i = $1 + 1 foreach network::pxe::list_profiles($profiles_conf);
+ "$prefix$i";
+}
+
+sub add_empty_profile {
+ my ($profiles_conf, $profile, $to_install) = @_;
+ $to_install and $profiles_conf->{profiles}{install}{$profile} = 1;
+ $profiles_conf->{profiles}{boot}{$profile} = 1;
+}
+
+sub copy_profile_for_type {
+ my ($profile, $clone, $type) = @_;
+ my ($pxe, $help) = get_pxelinux_profile_path($profile, $type);
+ my ($clone_pxe, $clone_help) = get_pxelinux_profile_path($clone, $type);
+ -r $pxe and cp_f($pxe, $clone_pxe);
+ -r $help and cp_f($help, $clone_help);
+}
+
+sub clone_profile {
+ my ($profiles_conf, $profile) = @_;
+ my $clone = find_next_profile_name($profiles_conf, $profile);
+ if (exists $profiles_conf->{profiles}{install}{$profile}) {
+ $profiles_conf->{profiles}{install}{$clone} = 1;
+ copy_profile_for_type($profile, $clone, 'install');
+ }
+ $profiles_conf->{profiles}{boot}{$clone} = 1;
+ copy_profile_for_type($profile, $clone, 'boot');
+}
+
+sub remove_profile {
+ my ($profiles_conf, $profile) = @_;
+ foreach my $type (qw(boot install)) {
+ delete $profiles_conf->{profiles}{$type}{$profile};
+ unlink(get_pxelinux_profile_path($profile, $type));
+ }
+}
+
+1;
generated by cgit v1.2.1 (git 2.21.0) at 2024-11-23 02:14:48 +0000