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wireshark/tools/convert_proto_tree_add_text.pl

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#!/usr/bin/env perl
#
# Copyright 2013 Michael Mann (see AUTHORS file)
#
# A program to help convert proto_tree_add_text calls into filterable "items" that
# use proto_tree_add_item. The program requires 2 passes. "Pass 1" (generate) collects
# the eligible proto_tree_add_text calls and outputs the necessary data into a delimited
# file. "Pass 2" (fix-all) takes the data from the delimited file and replaces the
# proto_tree_add_text calls with proto_tree_add_item or "expert info" calls as well as
# generating separate files for the hf and/or ei variable declarations and hf and/or ei array data.
# The hf "files" can be copy/pasted into the dissector where appropriate (until such time as
# its done automatically)
#
# Note that the output from "Pass 1" won't always be a perfect conversion for "Pass 2", so
# "human interaction" is needed as an intermediary to verify and update the delimited file
# before "Pass 2" is done.
# It is also recommended to run checkhf.pl and checkAPIs.pl after "Pass 2" is completed.
#
# Delimited file field format:
# <convert proto_tree_add_text_call[0|1|10-13]><add hf or ei variable[0|1|2]><proto_tree var><hf var><tvb var><offset><length><encoding|[EXPERT_GROUPS]>
# <[FIELDNAME]><[FIELDTYPE]|[EXPERT_SEVERITY]><[FIELDABBREV]><[FIELDDISPLAY]><[FIELDCONVERT]><[BITMASK]>
#
# convert proto_tree_add_text_call enumerations:
# 0 - no conversions
# 1 - proto_tree_add_item
# 10 - expert_add_info
# 11 - expert_add_info_format
# 12 - proto_tree_add_expert
# 13 - proto_tree_add_expert_format
#
# Usage: convert_proto_tree_add_text.pl action=<generate|fix-all> <file or files>
#
# Lots of code shamelessly borrowed from fix-encoding-args.pl (Thanks Bill!)
#
# Wireshark - Network traffic analyzer
# By Gerald Combs <gerald@wireshark.org>
# Copyright 1998 Gerald Combs
#
# SPDX-License-Identifier: GPL-2.0-or-later
#
use strict;
use warnings;
use Getopt::Long;
my %DISPLAY_BASE = ('BASE_NONE' => "BASE_NONE",
'BASE_DEC' => "BASE_DEC",
'BASE_HEX' => "BASE_HEX",
'BASE_OCT' => "BASE_OCT",
'BASE_DEC_HEX' => "BASE_DEC_HEX",
'BASE_HEX_DEC' => "BASE_HEX_DEC",
'BASE_EXT_STRING' => "BASE_EXT_STRING",
'BASE_RANGE_STRING' => "BASE_RANGE_STRING",
'ABSOLUTE_TIME_LOCAL' => "ABSOLUTE_TIME_LOCAL",
'ABSOLUTE_TIME_UTC' => "ABSOLUTE_TIME_UTC",
'ABSOLUTE_TIME_DOY_UTC' => "ABSOLUTE_TIME_DOY_UTC",
'BASE_CUSTOM' => "BASE_CUSTOM");
my %ENCODINGS = ('ENC_BIG_ENDIAN' => "ENC_BIG_ENDIAN",
'ENC_LITTLE_ENDIAN' => "ENC_LITTLE_ENDIAN",
'ENC_TIME_SECS_NSECS' => "ENC_TIME_SECS_NSECS",
'ENC_TIME_NTP' => "ENC_TIME_NTP",
'ENC_ASCII' => "ENC_ASCII",
'ENC_UTF_8' => "ENC_UTF_8",
'ENC_UTF_16' => "ENC_UTF_16",
'ENC_UCS_2' => "ENC_UCS_2",
'ENC_EBCDIC' => "ENC_EBCDIC",
'ENC_NA' => "ENC_NA");
my %FIELD_TYPE = ('FT_NONE' => "FT_NONE", 'FT_PROTOCOL' => "FT_PROTOCOL", 'FT_BOOLEAN' => "FT_BOOLEAN",
'FT_UINT8' => "FT_UINT8", 'FT_UINT16' => "FT_UINT16", 'FT_UINT24' => "FT_UINT24", 'FT_UINT32' => "FT_UINT32", 'FT_UINT64' => "FT_UINT64",
'FT_INT8' => "FT_INT8", 'FT_INT16' => "FT_INT16", 'FT_INT24' => "FT_INT24", 'FT_INT32' => "FT_INT32", 'FT_INT64' => "FT_INT64",
'FT_FLOAT' => "FT_FLOAT", 'FT_DOUBLE' => "FT_DOUBLE",
'FT_ABSOLUTE_TIME' => "FT_ABSOLUTE_TIME", 'FT_RELATIVE_TIME' => "FT_RELATIVE_TIME",
'FT_STRING' => "FT_STRING", 'FT_STRINGZ' => "FT_STRINGZ", 'FT_UINT_STRING' => "FT_UINT_STRING",
'FT_ETHER' => "FT_ETHER", 'FT_BYTES' => "FT_BYTES", 'FT_UINT_BYTES' => "FT_UINT_BYTES",
'FT_IPv4' => "FT_IPv4", 'FT_IPv6' => "FT_IPv6", 'FT_IPXNET' => "FT_IPXNET", 'FT_AX25' => "FT_AX25", 'FT_VINES' => "FT_VINES",
'FT_FRAMENUM' => "FT_FRAMENUM", 'FT_GUID' => "FT_GUID", 'FT_OID' => "FT_OID", 'FT_REL_OID' => "FT_REL_OID", 'FT_EUI64' => "FT_EUI64");
my %EXPERT_SEVERITY = ('PI_COMMENT' => "PI_COMMENT",
'PI_CHAT' => "PI_CHAT",
'PI_NOTE' => "PI_NOTE",
'PI_WARN' => "PI_WARN",
'PI_ERROR' => "PI_ERROR");
my %EXPERT_GROUPS = ('PI_CHECKSUM' => "PI_CHECKSUM",
'PI_SEQUENCE' => "PI_SEQUENCE",
'PI_RESPONSE_CODE' => "PI_RESPONSE_CODE",
'PI_REQUEST_CODE' => "PI_REQUEST_CODE",
'PI_UNDECODED' => "PI_UNDECODED",
'PI_REASSEMBLE' => "PI_REASSEMBLE",
'PI_MALFORMED' => "PI_MALFORMED",
'PI_DEBUG' => "PI_DEBUG",
'PI_PROTOCOL' => "PI_PROTOCOL",
'PI_SECURITY' => "PI_SECURITY",
'PI_COMMENTS_GROUP' => "PI_COMMENTS_GROUP",
'PI_DECRYPTION' => "PI_DECRYPTION",
'PI_ASSUMPTION' => "PI_ASSUMPTION",
'PI_DEPRECATED' => "PI_DEPRECATED");
my @proto_tree_list;
my @expert_list;
my $protabbrev = "";
# Perl trim function to remove whitespace from the start and end of the string
sub trim($)
{
my $string = shift;
$string =~ s/^\s+//;
$string =~ s/\s+$//;
return $string;
}
# ---------------------------------------------------------------------
#
# MAIN
#
my $helpFlag = '';
my $action = 'generate';
my $encoding = '';
my $expert = '';
my $result = GetOptions(
'action=s' => \$action,
'encoding=s' => \$encoding,
'expert' => \$expert,
'help|?' => \$helpFlag
);
if (!$result || $helpFlag || !$ARGV[0]) {
usage();
}
sub usage {
print "\nUsage: $0 [--action=generate|fix-all|find-all] [--encoding=ENC_BIG_ENDIAN|ENC_LITTLE_ENDIAN] FILENAME [...]\n\n";
print " --action = generate (default)\n";
print " generate - create a delimited file (FILENAME.proto_tree_input) with\n";
print " proto_tree_add_text fields in FILENAME(s)\n";
print " fix-all - Use delimited file (FILENAME.proto_tree_input) to convert\n";
print " proto_tree_add_text to proto_tree_add_item\n";
print " Also generates FILENAME.hf and FILENAME.hf_array to be\n";
print " copy/pasted into the dissector where appropriate\n";
print " find-all - Output the number of eligible proto_tree_add_text calls\n";
print " for conversion\n\n";
print " --expert (Optional) Includes proto_tree_add_text calls with no printf arguments in\n";
print " the .proto_tree_input file as they could be converted to expert info\n";
print " (otherwise they are ignored)\n";
print " Must be called for 'fix-all' if called on 'generate'\n";
print " --encoding (Optional) Default encoding if one can't be determined\n";
print " (effective only for generate)\n";
print " If not specified, an encoding will not be auto-populated\n";
print " if undetermined\n\n";
exit(1);
}
#
# XXX Outline general algorithm here
#
my $found_total = 0;
my $protabbrev_index;
my $line_number = 0;
while (my $fileName = $ARGV[0]) {
shift;
my $fileContents = '';
die "No such file: \"$fileName\"\n" if (! -e $fileName);
# delete leading './'
$fileName =~ s{ ^ \. / } {}xo;
#determine PROTABBREV for dissector based on file name format of (dirs)/packet-PROTABBREV.c
$protabbrev_index = rindex($fileName, "packet-");
if ($protabbrev_index == -1) {
print "$fileName doesn't fit format of packet-PROTABBREV.c\n";
next;
}
$protabbrev = substr($fileName, $protabbrev_index+length("packet-"));
$protabbrev_index = rindex($protabbrev, ".");
if ($protabbrev_index == -1) {
print "$fileName doesn't fit format of packet-PROTABBREV.c\n";
next;
}
$protabbrev = lc(substr($protabbrev, 0, $protabbrev_index));
# Read in the file (ouch, but it's easier that way)
open(FCI, "<", $fileName) || die("Couldn't open $fileName");
while (<FCI>) {
$fileContents .= $_;
}
close(FCI);
if ($action eq "generate") {
generate_hfs(\$fileContents, $fileName);
}
if ($action eq "fix-all") {
# Read in the hf "input" file
$line_number = 0;
my $errors = 0;
open(FCI, "<", $fileName . ".proto_tree_input") || die("Couldn't open $fileName.proto_tree_input");
while(my $line=<FCI>){
my @proto_tree_item = split(/;|\n/, $line);
$line_number++;
$errors += verify_line(@proto_tree_item);
push(@proto_tree_list, \@proto_tree_item);
if ($proto_tree_item[1] eq "2") {
push(@expert_list, \@proto_tree_item);
}
}
close(FCI);
if ($errors > 0) {
print "Aborting conversion.\n";
exit(-1);
}
fix_proto_tree_add_text(\$fileContents, $fileName);
# Write out the hf data
output_hf_array($fileName);
output_hf($fileName);
# Write out the changed version to a file
open(FCO, ">", $fileName . ".proto_tree_add_text");
print FCO "$fileContents";
close(FCO);
}
if ($action eq "find-all") {
# Find all proto_tree_add_text() statements eligible for conversion
$found_total += find_all(\$fileContents, $fileName);
}
} # while
exit $found_total;
# ---------------------------------------------------------------------
# Sanity check the data in the .proto_tree_input file
sub verify_line {
my( @proto_tree_item) = @_;
my $errors = 0;
#do some basic error checking of the file
if ($proto_tree_item[0] eq "1") {
if (!($proto_tree_item[3] =~ /^hf_/)) {
print "$line_number: Poorly formed hf_ variable ($proto_tree_item[3])!\n";
$errors++;
}
foreach (split(/\|/, $proto_tree_item[7])) {
if (!exists($ENCODINGS{$_})) {
print "$line_number: Encoding value '$_' unknown!\n";
$errors++;
}
}
} elsif (($proto_tree_item[0] eq "10") ||
($proto_tree_item[0] eq "11") ||
($proto_tree_item[0] eq "12") ||
($proto_tree_item[0] eq "13")) {
#expert info conversions
if (!($proto_tree_item[3] =~ /^ei_/)) {
print "$line_number: Poorly formed ei_ variable ($proto_tree_item[3])!\n";
$errors++;
}
} elsif ($proto_tree_item[0] ne "0") {
print "Bad conversion value! Aborting conversion.\n";
$errors++;
}
if ($proto_tree_item[1] eq "1") {
if (!($proto_tree_item[3] =~ /^hf_/)) {
print "$line_number: Poorly formed hf_ variable ($proto_tree_item[3])!\n";
$errors++;
}
if (!exists($FIELD_TYPE{$proto_tree_item[9]})) {
print "$line_number: Field type '$proto_tree_item[9]' unknown!\n";
$errors++;
}
foreach (split(/\|/, $proto_tree_item[11])) {
if ((!exists($DISPLAY_BASE{$_})) &&
(!($proto_tree_item[11] =~ /\d+/))) {
print "$line_number: Display base '$proto_tree_item[11]' unknown!\n";
$errors++;
}
}
if (($proto_tree_item[9] eq "FT_UINT8") ||
($proto_tree_item[9] eq "FT_UINT16") ||
($proto_tree_item[9] eq "FT_UINT24") ||
($proto_tree_item[9] eq "FT_UINT32") ||
($proto_tree_item[9] eq "FT_UINT64") ||
($proto_tree_item[9] eq "FT_INT8") ||
($proto_tree_item[9] eq "FT_INT16") ||
($proto_tree_item[9] eq "FT_INT24") ||
($proto_tree_item[9] eq "FT_INT32") ||
($proto_tree_item[9] eq "FT_INT64")) {
if ($proto_tree_item[11] eq "BASE_NONE") {
print "$line_number: Interger type should not be BASE_NONE!\n";
$errors++;
}
}
} elsif ($proto_tree_item[1] eq "2") {
if (!($proto_tree_item[3] =~ /^ei_/)) {
print "$line_number: Poorly formed ei_ variable ($proto_tree_item[3])!\n";
$errors++;
}
if (!exists($EXPERT_SEVERITY{$proto_tree_item[9]})) {
print "$line_number: Expert severity value '$proto_tree_item[9]' unknown!\n";
$errors++;
}
if (!exists($EXPERT_GROUPS{$proto_tree_item[7]})) {
print "$line_number: Expert group value '$proto_tree_item[7]' unknown!\n";
$errors++;
}
} elsif ($proto_tree_item[1] ne "0") {
print "$line_number: Bad hf/ei variable generation value!\n";
$errors++;
}
return $errors;
}
sub generate_hfs {
my( $fileContentsRef, $fileName) = @_;
my @args;
my $num_items = 0;
my @temp;
my $str_temp;
my $pat;
if ($expert ne "") {
$pat = qr /
(
(?:proto_tree_add_text)\s* \(
(([^[\,;])*\,){4,}
[^;]*
\s* \) \s* ;
)
/xs;
} else {
$pat = qr /
(
(?:proto_tree_add_text)\s* \(
(([^[\,;])*\,){5,}
[^;]*
\s* \) \s* ;
)
/xs;
}
while ($$fileContentsRef =~ / $pat /xgso) {
my @proto_tree_item = (1, 1, "tree", "hf_name", "tvb", "offset", "length", "encoding",
"fieldfullname", "fieldtype", "fieldabbrevname", "BASE_NONE", "NULL", "0x0");
my $str = "${1}\n";
$str =~ tr/\t\n\r/ /d;
$str =~ s/ \s+ / /xg;
#print "$fileName: $str\n";
@args = split(/,/, $str);
#printf "ARGS(%d): %s\n", scalar @args, join("# ", @args);
$args[0] =~ s/proto_tree_add_text\s*\(\s*//;
$proto_tree_item[2] = $args[0]; #tree
$proto_tree_item[4] = trim($args[1]); #tvb
$proto_tree_item[5] = trim($args[2]); #offset
$proto_tree_item[6] = trim($args[3]); #length
if (scalar @args == 5) {
#remove the "); at the end
$args[4] =~ s/\"\s*\)\s*;$//;
}
#encoding
if (scalar @args > 5) {
if (($proto_tree_item[6] eq "1") ||
($args[5] =~ /tvb_get_guint8/) ||
($args[5] =~ /tvb_bytes_to_str/) ||
($args[5] =~ /tvb_ether_to_str/)) {
$proto_tree_item[7] = "ENC_NA";
} elsif ($args[5] =~ /tvb_get_ntoh/) {
$proto_tree_item[7] = "ENC_BIG_ENDIAN";
} elsif ($args[5] =~ /tvb_get_letoh/) {
$proto_tree_item[7] = "ENC_LITTLE_ENDIAN";
} elsif (($args[5] =~ /tvb_get_ephemeral_string/) ||
($args[5] =~ /tvb_format_text/)){
$proto_tree_item[7] = "ENC_NA|ENC_ASCII";
} elsif ($encoding ne "") {
$proto_tree_item[7] = $encoding;
}
}
#field full name
if (($expert ne "") || (scalar @args > 5)) {
my @arg_temp = split(/=|:/, $args[4]);
$proto_tree_item[8] = $arg_temp[0];
} else {
$proto_tree_item[8] = $args[4];
}
$proto_tree_item[8] =~ s/\"//;
$proto_tree_item[8] = trim($proto_tree_item[8]);
if ($proto_tree_item[8] eq "%s\"") {
#assume proto_tree_add_text will not be converted
$proto_tree_item[0] = 0;
$proto_tree_item[1] = 0;
$proto_tree_item[3] = sprintf("hf_%s_", $protabbrev);
$proto_tree_item[10] = sprintf("%s.", $protabbrev);
} else {
#hf variable name
$proto_tree_item[3] = sprintf("hf_%s_%s", $protabbrev, lc($proto_tree_item[8]));
$proto_tree_item[3] =~ s/\s+|-|:/_/g;
#field abbreviated name
$proto_tree_item[10] = sprintf("%s.%s", $protabbrev, lc($proto_tree_item[8]));
$proto_tree_item[10] =~ s/\s+|-|:/_/g;
}
#VALS
if ($str =~ /val_to_str(_const)?\(\s*tvb_get_[^\(]*\([^\,]*,[^\)]*\)\s*\,\s*([^\,]*)\s*\,\s*([^\)]*)\)/) {
$proto_tree_item[12] = sprintf("VALS(%s)", trim($2));
} elsif ($str =~ /val_to_str(_const)?\([^\,]*\,([^\,]*)\,/) {
$proto_tree_item[12] = sprintf("VALS(%s)", trim($2));
} elsif ($str =~ /val_to_str_ext(_const)?\(\s*tvb_get_[^\(]*\([^\,]*,[^\)]*\)\s*\,\s*([^\,]*)\s*\,\s*([^\)]*)\)/) {
$proto_tree_item[12] = trim($2);
} elsif ($str =~ /val_to_str_ext(_const)?\([^\,]*\,([^\,]*)\,/) {
$proto_tree_item[12] = trim($2);
}
#field type
if (scalar @args > 5) {
if ($args[5] =~ /tvb_get_guint8/) {
if ($args[4] =~ /%[0-9]*[i]/) {
$proto_tree_item[9] = "FT_INT8";
} else {
$proto_tree_item[9] = "FT_UINT8";
}
} elsif ($args[5] =~ /tvb_get_(n|"le")tohs/) {
if ($args[4] =~ /%[0-9]*[i]/) {
$proto_tree_item[9] = "FT_INT16";
} else {
$proto_tree_item[9] = "FT_UINT16";
}
} elsif ($args[5] =~ /tvb_get_(n|"le")toh24/) {
if ($args[4] =~ /%[0-9]*[i]/) {
$proto_tree_item[9] = "FT_INT24";
} else {
$proto_tree_item[9] = "FT_UINT24";
}
} elsif ($args[5] =~ /tvb_get_(n|"le")tohl/) {
if ($args[4] =~ /%[0-9]*[i]/) {
$proto_tree_item[9] = "FT_INT32";
} else {
$proto_tree_item[9] = "FT_UINT32";
}
} elsif ($args[5] =~ /tvb_get_(n|"le")toh("40"|"48"|"56"|"64")/) {
if ($args[4] =~ /%[0-9]*[i]/) {
$proto_tree_item[9] = "FT_INT64";
} else {
$proto_tree_item[9] = "FT_UINT64";
}
} elsif (($args[5] =~ /tvb_get_(n|"le")tohieee_float/) ||
($args[4] =~ /%[0-9\.]*[fFeEgG]/)) {
$proto_tree_item[9] = "FT_FLOAT";
} elsif ($args[5] =~ /tvb_get_(n|"le")tohieee_double/) {
$proto_tree_item[9] = "FT_DOUBLE";
} elsif (($args[5] =~ /tvb_get_ipv4/) ||
($args[5] =~ /tvb_ip_to_str/)) {
$proto_tree_item[9] = "FT_IPv4";
} elsif (($args[5] =~ /tvb_get_ipv6/) ||
($args[5] =~ /tvb_ip6_to_str/)) {
$proto_tree_item[9] = "FT_IPv6";
} elsif ($args[5] =~ /tvb_get_(n|"le")tohguid/) {
$proto_tree_item[9] = "FT_GUID";
} elsif ($args[5] =~ /tvb_get_ephemeral_stringz/) {
$proto_tree_item[9] = "FT_STRINGZ";
} elsif (($args[5] =~ /tvb_get_ephemeral_string/) ||
($args[5] =~ /tvb_format_text/)){
$proto_tree_item[9] = "FT_STRING";
} elsif (($args[5] =~ /tvb_bytes_to_str/)) {
$proto_tree_item[9] = "FT_BYTES";
} elsif ($args[5] =~ /tvb_ether_to_str/) {
$proto_tree_item[9] = "FT_ETHER";
}
#if we still can't determine type, assume a constant length
#value means we have an unsigned value
if ($proto_tree_item[9] eq "fieldtype") {
my $len_str = trim($args[3]);
if ($len_str eq "1") {
$proto_tree_item[9] = "FT_UINT8";
} elsif ($len_str eq "2") {
$proto_tree_item[9] = "FT_UINT16";
} elsif ($len_str eq "3") {
$proto_tree_item[9] = "FT_UINT24";
} elsif ($len_str eq "4") {
$proto_tree_item[9] = "FT_UINT32";
} elsif ($len_str eq "8") {
$proto_tree_item[9] = "FT_UINT64";
}
}
}
#display base
if ($args[4] =~ /%[0-9]*[xX]/) {
$proto_tree_item[11] = "BASE_HEX";
} elsif ($args[4] =~ /%[0-9]*[uld]/) {
$proto_tree_item[11] = "BASE_DEC";
} elsif ($args[4] =~ /%[0-9]*o/) {
$proto_tree_item[11] = "BASE_OCT";
}
if ($str =~ /val_to_str_ext(_const)?\([^\,]*\,([^\,]*)\,/) {
$proto_tree_item[11] .= "|BASE_EXT_STRING";
}
if (($proto_tree_item[7] eq "encoding") && ($proto_tree_item[9] eq "FT_BYTES")) {
$proto_tree_item[7] = "ENC_NA";
}
push(@proto_tree_list, \@proto_tree_item);
$num_items += 1;
}
if ($num_items > 0) {
open(FCO, ">", $fileName . ".proto_tree_input");
for my $item (@proto_tree_list) {
print FCO join(";", @{$item}), "\n";
}
close(FCO);
}
}
# ---------------------------------------------------------------------
# Find all proto_tree_add_text calls and replace them with the data
# found in proto_tree_list
sub fix_proto_tree_add_text {
my( $fileContentsRef, $fileName) = @_;
my $found = 0;
my $pat;
if ($expert ne "") {
$pat = qr /
(
(?:proto_tree_add_text)\s* \(
(([^[\,;])*\,){4,}
[^;]*
\s* \) \s* ;
)
/xs;
} else {
$pat = qr /
(
(?:proto_tree_add_text)\s* \(
(([^[\,;])*\,){5,}
[^;]*
\s* \) \s* ;
)
/xs;
}
$$fileContentsRef =~ s/ $pat /patsub($found, $1)/xges;
}
# ---------------------------------------------------------------------
# Format proto_tree_add_item or expert info functions with proto_tree_list data
sub patsub {
my $item_str;
if ($proto_tree_list[$_[0]][0] eq "1") {
$item_str = sprintf("proto_tree_add_item(%s, %s, %s, %s, %s, %s);",
$proto_tree_list[$_[0]][2], $proto_tree_list[$_[0]][3],
$proto_tree_list[$_[0]][4], $proto_tree_list[$_[0]][5],
$proto_tree_list[$_[0]][6], $proto_tree_list[$_[0]][7]);
} elsif ($proto_tree_list[$_[0]][0] eq "10") {
$item_str = sprintf("expert_add_info(pinfo, %s, &%s);",
$proto_tree_list[$_[0]][2], $proto_tree_list[$_[0]][3]);
} elsif ($proto_tree_list[$_[0]][0] eq "11") {
$item_str = sprintf("expert_add_info_format(pinfo, %s, &%s, \"%s\"",
$proto_tree_list[$_[0]][2], $proto_tree_list[$_[0]][3],
$proto_tree_list[$_[0]][8]);
if ($proto_tree_list[$_[0]][11] ne "") {
$item_str .= ", $proto_tree_list[$_[0]][11]";
}
$item_str .= ");";
} elsif ($proto_tree_list[$_[0]][0] eq "12") {
$item_str = sprintf("proto_tree_add_expert(%s, pinfo, &%s, %s, %s, %s);",
$proto_tree_list[$_[0]][2], $proto_tree_list[$_[0]][3],
$proto_tree_list[$_[0]][4], $proto_tree_list[$_[0]][5],
$proto_tree_list[$_[0]][6]);
} elsif ($proto_tree_list[$_[0]][0] eq "13") {
$item_str = sprintf("proto_tree_add_expert_format(%s, pinfo, &%s, %s, %s, %s, \"%s\"",
$proto_tree_list[$_[0]][2], $proto_tree_list[$_[0]][3],
$proto_tree_list[$_[0]][4], $proto_tree_list[$_[0]][5],
$proto_tree_list[$_[0]][6], $proto_tree_list[$_[0]][8]);
if ($proto_tree_list[$_[0]][11] ne "") {
$item_str .= ", $proto_tree_list[$_[0]][11]";
}
$item_str .= ");";
} else {
$item_str = $1;
}
$_[0] += 1;
return $item_str;
}
# ---------------------------------------------------------------------
# Output the hf variable declarations. For now, write them to a file.
# XXX - Eventually find the right place to add it to the modified dissector file
sub output_hf {
my( $fileName) = @_;
my %hfs = ();
my %eis = ();
my $index;
my $key;
open(FCO, ">", $fileName . ".hf");
print FCO "/* Generated from convert_proto_tree_add_text.pl */\n";
#add hfs to hash table to prevent against (accidental) duplicates
for ($index=0;$index<@proto_tree_list;$index++) {
if ($proto_tree_list[$index][1] eq "1") {
$hfs{$proto_tree_list[$index][3]} = $proto_tree_list[$index][3];
print FCO "static int $proto_tree_list[$index][3] = -1;\n";
} elsif ($proto_tree_list[$index][1] eq "2") {
$eis{$proto_tree_list[$index][3]} = $proto_tree_list[$index][3];
}
}
if (scalar keys %hfs > 0) {
print FCO "\n\n";
}
print FCO "/* Generated from convert_proto_tree_add_text.pl */\n";
foreach $key (keys %eis) {
print FCO "static expert_field $key = EI_INIT;\n";
}
close(FCO);
}
# ---------------------------------------------------------------------
# Output the hf array items. For now, write them to a file.
# XXX - Eventually find the right place to add it to the modified dissector file
# (bonus points if formatting of hf array in dissector file is kept)
sub output_hf_array {
my( $fileName) = @_;
my $index;
my %hfs = ();
my %eis = ();
open(FCO, ">", $fileName . ".hf_array");
print FCO " /* Generated from convert_proto_tree_add_text.pl */\n";
for ($index=0;$index<@proto_tree_list;$index++) {
if ($proto_tree_list[$index][1] eq "1") {
if (exists($hfs{$proto_tree_list[$index][3]})) {
print "duplicate hf entry '$proto_tree_list[$index][3]' found! Aborting conversion.\n";
exit(-1);
}
$hfs{$proto_tree_list[$index][3]} = $proto_tree_list[$index][3];
print FCO " { &$proto_tree_list[$index][3], { \"$proto_tree_list[$index][8]\", \"$proto_tree_list[$index][10]\", ";
print FCO "$proto_tree_list[$index][9], $proto_tree_list[$index][11], $proto_tree_list[$index][12], $proto_tree_list[$index][13], NULL, HFILL }},\r\n";
}
}
if ($index > 0) {
print FCO "\n\n";
}
print FCO " /* Generated from convert_proto_tree_add_text.pl */\n";
for ($index=0;$index<@expert_list;$index++) {
if (exists($eis{$expert_list[$index][3]})) {
print "duplicate ei entry '$expert_list[$index][3]' found! Aborting conversion.\n";
exit(-1);
}
$eis{$expert_list[$index][3]} = $expert_list[$index][3];
print FCO " { &$expert_list[$index][3], { \"$expert_list[$index][10]\", $expert_list[$index][7], ";
print FCO "$expert_list[$index][9], \"$expert_list[$index][8]\", EXPFILL }},\r\n";
}
close(FCO);
}
# ---------------------------------------------------------------------
# Find all proto_tree_add_text calls that have parameters passed in them
# and output number found
sub find_all {
my( $fileContentsRef, $fileName) = @_;
my $found = 0;
my $tvb_found = 0;
my $pat;
my $tvb_percent;
if ($expert ne "") {
$pat = qr /
(
(?:proto_tree_add_text)\s* \(
(([^[\,;])*\,){4,}
[^;]*
\s* \) \s* ;
)
/xs;
} else {
$pat = qr /
(
(?:proto_tree_add_text)\s* \(
(([^[\,;])*\,){5,}
[^;]*
\s* \) \s* ;
)
/xs;
}
while ($$fileContentsRef =~ / $pat /xgso) {
my $str = "${1}\n";
my @args = split(/,/, ${1});
#cleanup whitespace to show proto_tree_add_text in single line (easier for seeing grep results)
$str =~ tr/\t\n\r/ /d;
$str =~ s/ \s+ / /xg;
#print "$fileName: $str\n";
#find all instances where proto_tree_add_text has a tvb_get (or similar) call, because
#convert_proto_tree_add_text.pl has an easier time determining hf_ field values with it
if (scalar @args > 5) {
my $tvb = trim($args[5]);
if ($tvb =~ /^tvb_/) {
$tvb_found += 1;
}
}
$found += 1;
}
if ($found > 0) {
if ($tvb_found > 0) {
$tvb_percent = 100*$tvb_found/$found;
printf "%s: Found %d proto_tree_add_text calls eligible for conversion, %d contain a \"tvb get\" call (%.2f%%).\n",
$fileName, $found, $tvb_found, $tvb_percent;
} else {
print "$fileName: Found $found proto_tree_add_text calls eligible for conversion, 0 \"tvb get\" calls.\n";
}
}
return $found;
}
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