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|
#!/usr/bin/perl -w
#
# USB PTP Dissector
# Extracts PTP response codes from libgphoto2
# This is then hand-merged into packet-usb-ptp.h
#
# (c)2013 Max Baker <max@warped.org>
#
# SPDX-License-Identifier: GPL-2.0-or-later
$file = shift @ARGV || 'ptp.h';
$outfile = 'epan/dissectors/packet-usb-ptp.h';
%tables = (
'PTP_AC' => 'StorageInfo Access Capability',
'PTP_AT' => 'Association Types',
'PTP_DPC' => 'Device Properties Codes',
'PTP_DPFF' => 'Device Property Form Flag',
'PTP_DPGS' => 'Device Property GetSet type',
'PTP_DTC' => 'Data Type Codes',
'PTP_EC' => 'Event Codes',
'PTP_FST' => 'FilesystemType Values',
'PTP_GOH' => 'GetObjectHandles',
'PTP_OC' => 'Operation Codes',
'PTP_OFC' => 'Object Format Codes',
'PTP_OPC' => 'MTP Object Properties',
'PTP_OPFF' => 'MTP Device Property Codes',
'PTP_PS' => 'Protection Status',
'PTP_RC' => 'Response Codes',
'PTP_ST' => 'Storage Types',
'PTP_VENDOR' => 'Vendor IDs',
);
%manual_entries = (
'PTP_OC' => [
"USB_PTP_FLAVOR_NIKON , 0xfc01, \"ServiceModeStart\"",
"USB_PTP_FLAVOR_NIKON , 0xfc02, \"ServiceModeStop\"",
]
);
%Flavors = qw/
ANDROID USB_PTP_FLAVOR_ANDROID
CANON USB_PTP_FLAVOR_CANON
CANON_EOS USB_PTP_FLAVOR_CANON
CASIO USB_PTP_FLAVOR_CASIO
EK USB_PTP_FLAVOR_KODAK
FUJI USB_PTP_FLAVOR_FUJI
LEICA USB_PTP_FLAVOR_LEICA
MTP USB_PTP_FLAVOR_MTP
NIKON USB_PTP_FLAVOR_NIKON
OLYMPUS USB_PTP_FLAVOR_OLYMPUS
OLYMPUS_OMD USB_PTP_FLAVOR_OLYMPUS
PARROT USB_PTP_FLAVOR_PARROT
PANASONIC USB_PTP_FLAVOR_PANASONIC
SONY USB_PTP_FLAVOR_SONY
SONY_QX USB_PTP_FLAVOR_SONY
/;
$re_hex = '0x[0-9a-f]+';
open (H,"<$file") or die "Can't find gphoto2 header '$file'";
while (<H>) {
chomp;
next unless /^\s*#define\s+(\S+)\s+(.*)$/;
my ($define,$val) = ($1,$2);
# strip c-style comment
$val =~ s,/\*.*\*/,,;
$val =~ s,//.*,,;
$val =~ s/^\s*//g;
$val =~ s/\s*$//g;
#print "$define=$val\n";
$D{$define}=$val;
}
close H;
sub output_unmasked_table {
my ($table,$desc, $FH) = @_;
my $id = lc($table);
$id =~ s/^PTP_//i;
print $FH "/* $table $desc */\n";
print $FH "static const value_string usb_ptp_${id}_vals\[\] = {\n";
my @vals;
DEFINE:
foreach my $define (sort sort_D keys %D) {
next unless $define =~ /^${table}_(.*)/i;
my $subdefine = $1;
my $value = $D{$define};
push @vals, sprintf(" {%s, \"%s\"}",$value,$subdefine);
}
# now add manual entries
if (exists $manual_entries{$table}) {
for $i (0 .. $#{ $manual_entries{$table}}) {
push @vals, sprintf(" {%s}", $manual_entries{$table}[$i]);
}
}
# Add a null entry to mark the end
push @vals, " {0, NULL}";
print $FH join(",\n",@vals),"\n";
print $FH "};\n";
}
sub output_table {
my ($table,$desc, $FH) = @_;
my $is_masked = ($table ne "PTP_VENDOR");
return output_unmasked_table($table,$desc,$FH) unless $is_masked;
my $id = lc($table);
$id =~ s/^PTP_//i;
print $FH "/* $table $desc */\n";
print $FH "static const usb_ptp_value_string_masked_t usb_ptp_${id}_mvals\[\] = {\n";
my @vals;
DEFINE:
foreach my $define (sort sort_D keys %D) {
next unless $define =~ /^${table}_(.*)/i;
next if $define =~ /^.*_MASK/i;
my $subdefine = $1;
my $type = 'USB_PTP_FLAVOR_ALL';
foreach my $flavor (sort {length($b) <=> length($a)} keys %Flavors) {
next unless $subdefine =~ s/^${flavor}_//i;
$type = $Flavors{$flavor}
}
my $value = $D{$define};
if ($value =~ /^0x[0-9A-F]+|\d+$/i) {
# number or (lowercase) hex
$value = lc($value);
} elsif ($value =~ /^\(\s*([A-Z_][A-Z0-9_]*)\s*\|\s([A-Z_][A-Z0-9_]*)\s*\)$/i) {
# handle simple case of (A | B) where no recursive expansion
$value = sprintf("(%s | %s)", $D{$1}, $D{$2})
} else {
die "unrecognized value $value for $subdefine"
}
# Ok, not a subflavor
push @vals, sprintf(" {%-25s, %s, \"%s\"}",$type,$value,$subdefine);
}
# now add manual entries
if (exists $manual_entries{$table}) {
for $i (0 .. $#{ $manual_entries{$table}}) {
push @vals, sprintf(" {%s}", $manual_entries{$table}[$i]);
}
}
# Add a null entry to mark the end
push @vals, sprintf(" {%-25s, 0, NULL}","USB_PTP_FLAVOR_NONE");
print $FH join(",\n",@vals),"\n";
print $FH "};\n";
}
sub sort_D {
my $aa = $D{$a};
$aa = hex($aa) if $aa=~/^${re_hex}$/i;
$bb = $D{$b} || $b;
$bb = hex($bb) if $bb=~/^${re_hex}$/i;
if ($aa eq $bb) {
return $a cmp $b;
}
if ($aa =~ /^\d+$/ and $bb=~/^\d+$/) {
return $aa <=> $bb;
}
return $aa cmp $bb;
}
open (OUT,">$outfile.tmp") or die;
open (SRC,"<$outfile") or die;
$in_autogen = 0;
while (<SRC>) {
my $line = $_;
if ($line =~ /(?:START|END) AUTOGENERATED CODE/) {
print OUT $line;
if ($line =~ /START/) {
$in_autogen = 1;
# Output tables
foreach my $table (sort keys %tables) {
output_table($table, $tables{$table}, OUT);
}
} else {
$in_autogen = 0;
}
next;
}
print OUT $_ unless $in_autogen;
}
close SRC;
close OUT;
rename("$outfile.tmp", $outfile) or die;
|
