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+#!/usr/bin/perl
+#
+# Copyright (c) International Business Machines Corp., 2006
+#
+# 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, write to the Free Software
+# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+#
+
+#
+# mkpfi
+#
+# This perl program is assembles PFI files from a config file.
+#
+# Author: Oliver Lohmann (oliloh@de.ibm.com)
+#
+use warnings;
+use strict;
+use lib "/usr/lib/perl5"; # Please change this path as you need it, or
+ # make a proposal how this could be done
+ # nicer.
+use Getopt::Long;
+use Pod::Usage;
+use Config::IniFiles;
+use File::Temp;
+
+# ----------------------------------------------------------------------------
+# Versions
+our $version : unique = "0.1";
+our $pfi_version : unique = "0x1";
+
+# ----------------------------------------------------------------------------
+# Globals
+my $verbose = 0;
+my $cfg;
+
+my %opts = ();
+my %files = (config => "");
+my @tmp_files;
+
+my %tools = (ubicrc32 => "ubicrc32");
+
+# ----------------------------------------------------------------------------
+# Processing the input sections
+#
+# The idea is to combine each section entry with a function
+# in order to allow some kind of preprocessing for the values
+# before they are written into the PFI file.
+# This is especially useful to be more verbose and
+# user-friendly in the layout file.
+#
+# All key-function hashes are applied after the general
+# validation of the configuration file.
+# If any mandatory key is missing in a section the user
+# will be informed and the PFI creation process is aborted.
+#
+# Default keys will be checked for their presence inside the config
+# file. If they are missing, they will be generated with appr. values.
+
+# Mandatory keys for UBI volumes.
+my %ubi_keys = ("ubi_ids" => \&check_id_list,
+ "ubi_size" => \&replace_num,
+ "ubi_type" => \&replace_type,
+ "ubi_names" => \&remove_spaces,
+ "ubi_alignment" => \&replace_num);
+
+# Mandatory keys for RAW sections.
+my %raw_keys = ("raw_starts" => \&expand_starts,
+ "raw_total_size" => \&replace_num);
+
+# Common default keys for documentation and control purposes.
+my %common_keys = ("flags" => \&replace_num,
+ "label" => \&do_nothing);
+
+# Define any defaults here. Values which maintained in this default
+# region need not to be specified by the user explicitly.
+my %def_ubi_keys = ("ubi_alignment" => [\&set_default, "0x1"]);
+my %def_raw_keys = ();
+my %def_common_keys = ("flags" => [\&set_default, "0x0"],
+ "label" => [\&generate_label, ""]);
+
+# ----------------------------------------------------------------------------
+# Input keys, actually the path to the input data.
+
+my %input_keys = ("image" => \&do_nothing);
+
+# Placeholder keys allow the replacement via a special
+# purpose function. E.g. the bootenv_file key will be used
+# to generate bootenv binary data from an text file and
+# replace the bootenv_file key with an image key to handle it
+# in the same way in the further creation process.
+my %input_placeholder_keys = ("bootenv_file" => \&create_bootenv_image);
+
+# ----------------------------------------------------------------------------
+# Helper
+
+# @brief Get current time string.
+sub get_date {
+ my $tmp = scalar localtime;
+ $tmp =~ s/ /_/g;
+ return $tmp;
+}
+
+# @brief Print an info message to stdout.
+sub INFO($) {
+ my $str = shift;
+
+ if (!$verbose) {
+ return;
+ }
+
+ print STDOUT $str;
+}
+
+# @brief Print an error message to stderr.
+sub ERR($) {
+ my $str = shift;
+ print STDERR $str;
+}
+
+# @brief Print a warning message to stderr.
+sub WARN($) {
+ my $str = shift;
+ print STDERR $str;
+}
+
+sub parse_command_line($) {
+ my $opt = shift;
+ my $result = GetOptions( "help" => \$$opt{'help'},
+ "man" => \$$opt{'man'},
+ "config=s" => \$$opt{'config'},
+ "verbose" => \$$opt{'verbose'},
+ ) or pod2usage(2);
+ pod2usage(1) if defined ($$opt{help});
+ pod2usage(-verbose => 2) if defined ($$opt{man});
+
+ $verbose = $$opt{verbose} if defined $$opt{verbose};
+
+ if (!defined $$opt{config}) {
+ ERR("[ ERROR: No config file specified. Aborting...\n");
+ exit 1;
+ }
+
+}
+
+# @brief Check if all needed tools are in PATH.
+sub check_tools {
+ my $err = 0;
+ my $key;
+
+ foreach $key (keys %tools) {
+ if (`which $tools{$key}` eq "") {
+ ERR("\n") if ($err == 0);
+ ERR("! Please add the tool \'$tools{$key}\' " .
+ "to your path!\n");
+ $err = 1;
+ }
+ }
+ die "[ ERROR: Did not find all needed tools!\n" if $err;
+}
+
+sub open_cfg_file($) {
+ my $fname = shift;
+ my $res = new Config::IniFiles( -file => $fname );
+
+ die "[ ERROR: Cannot load your config file!\n" if (!defined $res);
+ return $res;
+}
+
+sub set_default($$$$) {
+ my ($cfg, $section, $parameter, $def_value) = @_;
+ $cfg->newval($section, $parameter, $def_value);
+ return;
+}
+
+sub generate_label($$$$) {
+ my ($cfg, $section, $parameter, $def_value) = @_;
+ my $new_label = $def_value . $section;
+ $new_label .= "_" . get_date;
+ $cfg->newval($section, $parameter, $new_label);
+ return;
+}
+
+# @brief Converts any num to a unified hex string, i.e the resulting value
+# always starts with "0x" and is aligned to 8 hexdigits.
+# @return Returns 0 on success, otherwise an error occured.
+#
+sub any_num_to_hex($$) {
+ my $val = shift;
+ my $res = shift;
+
+ # M(iB)
+ if ($val =~ m/([0-9]+)[Mm][i]?[Bb]?/g) {
+ $$res = sprintf("0x%08x", $1 * 1024 * 1024);
+ }
+ # k(iB)
+ elsif ($val =~ m/([0-9]+)[kK][i]?[Bb]?/g) {
+ $$res = sprintf("0x%08x", $1 * 1024);
+ }
+ # hex
+ elsif ($val =~ m/0x?([0-9a-fA-F]+)/g) {
+ $$res = sprintf("0x%08x", hex $1);
+ }
+ # decimal
+ elsif ($val =~ m/^([0-9]+)$/g) {
+ $$res = sprintf("0x%08x", $1);
+ }
+ else {
+ $$res = "";
+ return -1;
+ }
+
+ return 0;
+}
+
+sub remove_spaces($$$) {
+ my ($cfg, $section, $parameter) = @_;
+ my ($start, @starts, @new_starts);
+ my $val = $cfg->val($section, $parameter);
+ my $res;
+
+ $val =~ s/ //g; # spaces
+ $cfg->newval($section, $parameter, $val);
+}
+
+sub expand_starts($$$) {
+ my ($cfg, $section, $parameter) = @_;
+ my ($start, @starts, @new_starts);
+ my $val = $cfg->val($section, $parameter);
+ my $res;
+
+ $val =~ s/ //g; # spaces
+ @starts = split(/,/, $val);
+
+ foreach $start (@starts) {
+ if (any_num_to_hex($start, \$res) != 0) {
+ ERR("[ ERROR: [$section]\n");
+ ERR("[ Expecting a list of numeric " .
+ "values for parameter: $parameter\n");
+ exit 1;
+ }
+ push (@new_starts, $res);
+ }
+ $res = join(',', @starts);
+
+ $cfg->newval($section, $parameter, $res);
+}
+
+sub check_id_list($$$) {
+ my ($cfg, $section, $parameter) = @_;
+ my $val = $cfg->val($section, $parameter);
+ my $res;
+
+ if (!($val =~ m/^[0-9]+[,0-9]*/)) {
+ ERR("[ ERROR: Syntax error in 'ubi_ids' in " .
+ "section '$section': $val\n");
+ ERR("[ Aborting... ");
+ exit 1;
+ }
+}
+
+sub replace_type($$$) {
+ my ($cfg, $section, $parameter) = @_;
+ my $val = $cfg->val($section, $parameter);
+ my $res;
+
+ $res = lc($val);
+ grep {$res eq $_} ('static', 'dynamic')
+ or die "[ ERROR: Unknown UBI Volume Type in " .
+ "section '$section': $val\n";
+
+ $cfg->newval($section, $parameter, $res);
+}
+
+
+sub replace_num($$$) {
+ my ($cfg, $section, $parameter) = @_;
+ my $val = $cfg->val($section, $parameter);
+ my $res = "";
+
+ if (any_num_to_hex($val, \$res) != 0) {
+ ERR("[ ERROR: [$section]\n");
+ ERR("[ Expecting a numeric value " .
+ "for parameter: $parameter\n");
+ exit 1;
+ }
+ $cfg->newval($section, $parameter, $res);
+}
+
+sub do_nothing($$$) {
+ my ($cfg, $section, $parameter) = @_;
+ return;
+}
+
+sub bootenv_sanity_check($) {
+ my $env = shift; # hash array containing bootenv
+ my %pdd = ();
+
+ defined($$env{'pdd'}) or return "'pdd' not defined";
+ foreach (split /,/, $$env{'pdd'}) {
+ defined($$env{$_}) or return "undefined '$_' in pdd";
+ $pdd{$_} = 1;
+ }
+
+ defined $$env{'pdd_preserve'} or
+ return "";
+ foreach (split /,/, $$env{'pdd_preserve'}) {
+ defined($pdd{$_})
+ or return "pdd_preserve field '$_' not in pdd";
+ }
+ return "";
+}
+
+sub create_bootenv_image($$$) {
+ my ($cfg, $section, $parameter) = @_;
+ my $txt_fn = $cfg->val($section, "bootenv_file");
+ my $in;
+
+ my %value = ();
+ my @key = ();
+
+ open $in, "<", $txt_fn
+ or die "[ ERROR: can't open bootenv file '$txt_fn'.\n";
+ while (<$in>) {
+ next if (/^\s*(\#.*)?$/); # Skip comments/whitespace.
+
+ if (/^(\S+?)\+\=(.*)$/) {
+ defined($value{$1}) or
+ die "$txt_fn:$.: error: appending to" .
+ " non-existent '$1'\n";
+ $value{$1} .= $2;
+ } elsif (/^(\S+?)\=(.*)$/) {
+ not defined($value{$1}) or
+ die "$txt_fn:$.: error: trying to" .
+ " redefine '$1'\n";
+ push @key, $1;
+ $value{$1} = $2;
+ } else {
+ die "$txt_fn:$.: error: unrecognized syntax\n";
+ }
+ }
+ close $in;
+
+ $_ = &bootenv_sanity_check(\%value)
+ and die "$txt_fn: error: $_\n";
+
+ my $tmp_file = new File::Temp();
+ push (@tmp_files, $tmp_file);
+
+ foreach (@key) {
+ print $tmp_file "$_=", $value{$_}, "\0";
+ }
+ close $tmp_file;
+
+ $cfg->newval($section, "image", $tmp_file-> filename);
+}
+
+sub process_keys($$$) {
+ my ($cfg, $section, $keys) = @_;
+ my @parameters = $cfg->Parameters($section);
+ my $i;
+
+ for ($i = 0 ; $i < scalar(@parameters) ; $i++ ) {
+ if (defined($$keys{$parameters[$i]})) {
+ $$keys{$parameters[$i]}->($cfg, $section,
+ $parameters[$i]);
+ }
+ }
+
+}
+
+sub is_in_keylist($$) {
+ my ($key, $keys) = @_;
+ my $i;
+
+ for ($i = 0; $i < scalar(@$keys); $i++) {
+ if ($$keys[$i] eq $key) {
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
+sub check_default_keys($$$) {
+ my ($cfg, $section, $keys) = @_;
+ my @parameters = $cfg->Parameters($section);
+ my $key;
+
+ foreach $key (keys %$keys) {
+ if (!is_in_keylist($key, \@parameters)) {
+ $$keys{$key}[0]->
+ ($cfg, $section, $key, $$keys{$key}[1]);
+ }
+ }
+
+}
+
+
+
+sub check_keys($$$) {
+ my ($cfg, $section, $keys) = @_;
+ my @parameters = $cfg->Parameters($section);
+ my ($i, $key, $err);
+
+ $err = 0;
+ for ($i = 0 ; $i < scalar(@$keys) ; $i++ ) {
+ if (!is_in_keylist($$keys[$i], \@parameters)) {
+ ERR("[ ERROR: [$section]\n") if $err == 0;
+ $err = 1;
+ ERR("[ Missing key '$$keys[$i]'\n");
+ }
+ }
+
+ if ($err) {
+ ERR("[ Aborting...\n");
+ exit 1;
+ }
+}
+
+sub push_pfi_data($$$$$) {
+ my ($cfg, $section, $pfi_infos, $keys, $mode) = @_;
+ my ($tmp, $i, $hdr);
+
+ my %pfi_info = ();
+ $pfi_info{'mode'} = $mode;
+ $pfi_info{'image'} = $cfg->val($section, "image");
+
+ # Build the PFI header
+ $hdr = sprintf("PFI!\n");
+ $hdr .= sprintf("version=0x%08x\n", hex $pfi_version);
+ $hdr .= sprintf("mode=$mode\n");
+
+ # calculate the size of the binary data part
+ $tmp = -s $cfg->val($section, "image");
+ if (!defined $tmp) {
+ ERR("[ ERROR: [$section]\n");
+ ERR("[ Missing input image: "
+ . $cfg->val($section, "image") . "\n");
+ exit 1;
+ }
+ # Check for the image to fit into the given space
+ my $quota;
+ if ($mode eq 'raw') {
+ $quota = oct $cfg->val($section, "raw_total_size");
+ } elsif ($mode eq 'ubi') {
+ $quota = oct $cfg->val($section, "ubi_size");
+ }
+ $tmp <= $quota
+ or die "[ERROR: image file too big: " .
+ $cfg->val($section, "image") . "\n";
+ $pfi_info{'size'} = $tmp;
+
+ $hdr .= sprintf("size=0x%08x\n", $tmp);
+
+ my $img_file = $cfg->val($section, "image");
+ my $crc32 = `$tools{'ubicrc32'} $img_file 2>&1`;
+ if (any_num_to_hex($crc32, \$tmp) != 0) {
+ die "[ ERROR: $tools{'ubicrc32'} returned with errors";
+ }
+ $hdr .= sprintf("crc=$tmp\n");
+
+
+ # Process all remaining keys
+ for ($i = 0; $i < scalar (@$keys); $i++) {
+ if ($$keys[$i] eq "image") { # special case image input file
+ if (! -e ($tmp = $cfg->val($section, "image"))) {
+ ERR("[ ERROR: [$section]\n");
+ ERR("[ Cannot find input file $tmp\n");
+ exit 1;
+ }
+ next;
+ }
+ $hdr .= sprintf("%s=%s\n", $$keys[$i],
+ $cfg->val($section, $$keys[$i]));
+ }
+
+ $hdr .= sprintf("\n"); # end marker for PFI-header
+
+ $pfi_info{'header'} = $hdr;
+
+ # store in the header list
+ push @$pfi_infos, \%pfi_info;
+}
+
+sub process_section($$$$$$) {
+ my ($cfg, $section, $pfi_infos, $custom_keys,
+ $def_custom_keys, $mode) = @_;
+ my @keys = (keys %common_keys, keys %$custom_keys);
+ my @complete_keys = (@keys, keys %input_keys);
+
+ # set defaults if necessary
+ check_default_keys($cfg, $section, $def_custom_keys);
+ check_default_keys($cfg, $section, \%def_common_keys);
+
+ # check for placeholders...
+ process_keys($cfg, $section, \%input_placeholder_keys);
+
+ # VALIDATE layout.cfg entries
+ check_keys($cfg, $section, \@complete_keys);
+
+ # execute linked functions (if any)
+ process_keys($cfg, $section, \%common_keys);
+ process_keys($cfg, $section, $custom_keys);
+
+ push_pfi_data($cfg, $section, $pfi_infos, \@keys, $mode);
+}
+
+sub get_section_info($$) {
+ my ($cfg, $section) = @_;
+ my @parameters = $cfg->Parameters($section);
+ my ($ubi, $raw, $i, @res);
+
+ $ubi = $raw = 0;
+ for ($i = 0 ; $i < scalar(@parameters) ; $i++ ) {
+ if ($parameters[$i] =~ m/ubi_/gi) {
+ $ubi = 1;
+ @res = (\%ubi_keys, \%def_ubi_keys, "ubi");
+ }
+ if ($parameters[$i] =~ m/raw_/gi) {
+ $raw = 1;
+ @res = (\%raw_keys, \%def_raw_keys, "raw");
+ }
+ }
+
+ if (($ubi + $raw) != 1) { # double definition in section
+ ERR("[ ERROR: Layout error in section '$section'\n");
+ exit 1;
+ }
+
+ return @res;
+}
+
+sub mk_target_list($$) {
+ my $val = shift;
+ my $tmp = shift;
+ my $complete = 0;
+
+ if ($val =~ m/\((.*)\)/g) {
+ $val = $1;
+ $complete = 1;
+ }
+ $val =~ s/ //g; # spaces
+
+ @$tmp = split(/,/, $val);
+
+ return $complete;
+}
+
+sub copy_bytes($$$) {
+ my ($in, $out, $to_copy) = @_;
+
+ while ($to_copy) {
+ my $buf;
+ my $bufsize = 1024*1024;
+
+ $bufsize < $to_copy or $bufsize = $to_copy;
+ read($in, $buf, $bufsize) == $bufsize
+ or die "[ ERROR: Image file shrunk during operation\n";
+ print $out $buf;
+ $to_copy -= $bufsize;
+ }
+}
+
+sub write_target($$) {
+ my ($pfi_infos, $target) = @_;
+ my ($pfi_info);
+
+ INFO("[ Writting target pfi file: '$target.pfi'...\n");
+ if (-e "$target.pfi") {
+ WARN("! Replaced old pfi...\n");
+ `rm -f $target.pfi`;
+ }
+ open(FILE, ">", "$target.pfi")
+ or die "[ ERROR: Cannot create output file: $target.pfi\n";
+ binmode(FILE);
+
+ # @FIXME sort by mode (first raw, then ubi)
+ # Currently this ordering is based on a string comparism. :-)
+ @$pfi_infos = sort {(lc $$a{'mode'}) cmp (lc $$b{'mode'})} @$pfi_infos;
+
+ # Print all headers first
+ foreach $pfi_info (@$pfi_infos) {
+ print FILE $$pfi_info{'header'};
+
+ }
+ # Print the linked data sections
+ print FILE "DATA\n";
+ foreach $pfi_info (@$pfi_infos) {
+ open(IMAGE, "<", $$pfi_info{'image'})
+ or die "[ ERROR: Cannot open input image: " .
+ "$$pfi_info{'image'}" . "\n";
+ binmode(IMAGE);
+ &copy_bytes(\*IMAGE, \*FILE, $$pfi_info{'size'});
+ close(IMAGE) or die "[ ERROR: Cannot close input image: " .
+ "$$pfi_info{'image'}" . "\n";
+ }
+ close(FILE) or die "[ ERROR: Cannot close output file: $target.pfi\n";
+}
+
+sub process_config($) {
+ my $cfg = shift;
+ my @sections = $cfg->Sections;
+ my ($i, $j, $keylist, $def_keylist, $mode, $tmp,
+ @tlist, $complete,@pfi_infos);
+
+ my @parameters = $cfg->Parameters("targets") or
+ die "[ ERROR: Config file has no 'targets' section!\n";
+
+ for ($i = 0 ; $i < scalar(@parameters) ; $i++ ) {
+ INFO("[ Processing target '$parameters[$i]'...\n");
+ @pfi_infos = ();
+
+ # get a list of subtargets
+ $complete = mk_target_list($cfg->val("targets",
+ $parameters[$i]), \@tlist);
+ # build all subtargets
+ for ($j = 0 ; $j < scalar(@tlist) ; $j++ ) {
+ ($keylist, $def_keylist, $mode)
+ = get_section_info($cfg, $tlist[$j]);
+ process_section($cfg, $tlist[$j],
+ \@pfi_infos,
+ $keylist, $def_keylist, $mode);
+ }
+
+ write_target(\@pfi_infos, $parameters[$i]);
+ }
+
+ INFO("[ Success.\n");
+
+
+}
+
+sub clear_files() {
+ # @FIXME:
+ # Works implicitly and Fedora seems to have removed
+ # the cleanup call. Thus for now, inactive.
+ # File::Temp::cleanup();
+}
+
+require 5.008_000; # Tested with version 5.8.0.
+select STDOUT; $| = 1; # make STDOUT output unbuffered
+select STDERR; $| = 1; # make STDERR output unbuffered
+
+parse_command_line(\%opts);
+check_tools;
+$cfg = open_cfg_file($opts{config});
+process_config($cfg);
+clear_files;
+
+__END__
+
+
+=head1 NAME
+
+mkpfi - Using GetOpt::Long, Pod::Usage, Config::IniFiles
+
+
+=head1 SYNOPSIS
+
+mkpfi [OPTIONS ...]
+
+
+ OPTION
+
+ [--config] [--help] [--man]
+
+
+=head1 ABSTRACT
+
+Perl script for generating pdd pfi files from given config files.
+
+=head1 OPTIONS
+
+=over
+
+=item B<--help>
+
+Print out brief help message.
+
+=item B<--usage>
+
+Print usage.
+
+=item B<--config>
+
+Config input file.
+
+=item B<--man>
+
+Print manual page, same as 'perldoc mkpfi'.
+
+=item B<--verbose>
+
+Be verbose!
+
+=back
+
+=head1 BUGS
+
+Report via MTD mailing list
+
+
+=head1 SEE ALSO
+
+http://www.linux-mtd.infradead.org/
+
+
+=head1 AUTHOR
+
+Oliver Lohmann (oliloh@de.ibm.com)
+
+=cut
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