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796e5f9648
We would like to be able to log and audit the symbols we use in openssl so that we might catch when a new platform symbols is referecned Add such a script (just on unix platforms for now) that gathers the used symbols not belonging to libcrypto or libssl, and compare it to a prior known set of used symbols. Error out if a new symbol is found Add this script to the ci workflow in CI to capture newly introduced platform symbols Fixes #22330 Reviewed-by: Hugo Landau <hlandau@openssl.org> Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/22478)
85 lines
2.4 KiB
Perl
Executable File
85 lines
2.4 KiB
Perl
Executable File
#! /usr/bin/env perl
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# Copyright 2006-2023 The OpenSSL Project Authors. All Rights Reserved.
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#
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# Licensed under the Apache License 2.0 (the "License"). You may not use
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# this file except in compliance with the License. You can obtain a copy
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# in the file LICENSE in the source distribution or at
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# https://www.openssl.org/source/license.html
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use warnings;
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use strict;
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use Config;
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my $expectedsyms=$ARGV[0];
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shift(@ARGV);
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my $objlist;
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my $objfilelist = join(" ", @ARGV);
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my $expsyms;
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my $exps;
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my $OBJFH;
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my $cmd;
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if ($Config{osname} eq "MSWin32") {
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my $currentdll = "";
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$cmd = "dumpbin /imports " . $objfilelist;
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my @symlist;
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open $expsyms, '<', $expectedsyms or die;
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{
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local $/;
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$exps=<$expsyms>;
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}
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close($expsyms);
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open($OBJFH, "$cmd|") or die "Cannot open process: $!";
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while (<$OBJFH>)
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{
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chomp;
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my $dllfile = $_;
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$dllfile =~ s/( +)(.*)(\.dll)(.*)/DLLFILE \2/;
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if (index($dllfile, "DLLFILE") >= 0) {
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$currentdll = substr($dllfile, 8);
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$currentdll =~ s/^\s+|s+$//g;
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}
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# filter imports from our own library
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if ("$currentdll" ne "libcrypto-3-x64") {
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my $line = $_;
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$line =~ s/ [0-9a-fA-F]{1,2} /SYMBOL /;
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if (index($line, "SYMBOL") != -1) {
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$line =~ s/.*SYMBOL //;
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push(@symlist, $line);
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}
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}
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}
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foreach (@symlist) {
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if (index($exps, $_) < 0) {
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print "Symbol $_ not in the allowed platform symbols list\n";
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exit 1;
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}
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}
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exit 0;
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}
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else {
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$cmd = "objdump -t " . $objfilelist . " | grep UND | grep -v \@OPENSSL";
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$cmd = $cmd . " | awk '{print \$NF}' |";
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$cmd = $cmd . " sed -e\"s/@.*\$//\" | sort | uniq";
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open $expsyms, '<', $expectedsyms or die;
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{
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local $/;
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$exps=<$expsyms>;
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}
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close($expsyms);
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open($OBJFH, "$cmd|") or die "Cannot open process: $!";
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while (<$OBJFH>)
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{
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if (index($exps, $_) < 0) {
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print "Symbol $_ not in the allowed platform symbols list\n";
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exit 1;
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}
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}
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close($OBJFH);
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exit 0;
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}
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