Mercurial > dropbear
view libtomcrypt/helper.pl @ 1695:93e738ef0d9d
Avoid oss-fuzz $SANITIZER causing wrong build
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=22608
| author | Matt Johnston <matt@ucc.asn.au> |
|---|---|
| date | Wed, 27 May 2020 20:33:45 +0800 |
| parents | 6dba84798cd5 |
| children |
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#!/usr/bin/env perl use strict; use warnings; use Getopt::Long; use File::Find 'find'; use File::Basename 'basename'; use File::Glob 'bsd_glob'; sub read_file { my $f = shift; open my $fh, "<", $f or die "FATAL: read_rawfile() cannot open file '$f': $!"; binmode $fh; return do { local $/; <$fh> }; } sub write_file { my ($f, $data) = @_; die "FATAL: write_file() no data" unless defined $data; open my $fh, ">", $f or die "FATAL: write_file() cannot open file '$f': $!"; binmode $fh; print $fh $data or die "FATAL: write_file() cannot write to '$f': $!"; close $fh or die "FATAL: write_file() cannot close '$f': $!"; return; } sub check_source { my @all_files = (bsd_glob("makefile*"), bsd_glob("*.sh"), bsd_glob("*.pl")); find({ wanted=>sub { push @all_files, $_ if -f $_ }, no_chdir=>1 }, qw/src tests demos/); my $fails = 0; for my $file (sort @all_files) { next unless $file =~ /\.(c|h|pl|py|sh)$/ || basename($file) =~ /^makefile/i; my $troubles = {}; my $lineno = 1; my $content = read_file($file); push @{$troubles->{crlf_line_end}}, '?' if $content =~ /\r/; for my $l (split /\n/, $content) { push @{$troubles->{merge_conflict}}, $lineno if $l =~ /^(<<<<<<<|=======|>>>>>>>)([^<=>]|$)/; push @{$troubles->{trailing_space}}, $lineno if $l =~ / $/; push @{$troubles->{tab}}, $lineno if $l =~ /\t/ && basename($file) !~ /^makefile/i; push @{$troubles->{non_ascii_char}}, $lineno if $l =~ /[^[:ascii:]]/; push @{$troubles->{cpp_comment}}, $lineno if $file =~ /\.(c|h)$/ && ($l =~ /\s\/\// || $l =~ /\/\/\s/); # in ./src we prefer using XMEMCPY, XMALLOC, XFREE ... push @{$troubles->{unwanted_memcpy}}, $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\bmemcpy\s*\(/; push @{$troubles->{unwanted_malloc}}, $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\bmalloc\s*\(/; push @{$troubles->{unwanted_realloc}}, $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\brealloc\s*\(/; push @{$troubles->{unwanted_calloc}}, $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\bcalloc\s*\(/; push @{$troubles->{unwanted_free}}, $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\bfree\s*\(/; push @{$troubles->{unwanted_memset}}, $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\bmemset\s*\(/; push @{$troubles->{unwanted_memcpy}}, $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\bmemcpy\s*\(/; push @{$troubles->{unwanted_memmove}}, $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\bmemmove\s*\(/; push @{$troubles->{unwanted_memcmp}}, $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\bmemcmp\s*\(/; push @{$troubles->{unwanted_strcmp}}, $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\bstrcmp\s*\(/; push @{$troubles->{unwanted_clock}}, $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\bclock\s*\(/; push @{$troubles->{unwanted_qsort}}, $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\bqsort\s*\(/; push @{$troubles->{sizeof_no_brackets}}, $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\bsizeof\s*[^\(]/; if ($file =~ m|src/.*\.c$| && $file !~ m|src/ciphers/.*\.c$| && $file !~ m|src/hashes/.*\.c$| && $file !~ m|src/math/.+_desc.c$| && $file !~ m|src/stream/sober128/sober128_stream.c$| && $l =~ /^static(\s+[a-zA-Z0-9_]+)+\s+([^_][a-zA-Z0-9_]+)\s*\(/) { push @{$troubles->{staticfunc_name}}, "$lineno($2)"; } $lineno++; } for my $k (sort keys %$troubles) { warn "[$k] $file line:" . join(",", @{$troubles->{$k}}) . "\n"; $fails++; } } warn( $fails > 0 ? "check-source: FAIL $fails\n" : "check-source: PASS\n" ); return $fails; } sub check_defines { my $fails = 0; my $cust_h = read_file("src/headers/tomcrypt_custom.h"); my $cryp_c = read_file("src/misc/crypt/crypt.c"); $cust_h =~ s|/\*.*?\*/||sg; # remove comments $cryp_c =~ s|/\*.*?\*/||sg; # remove comments my %def = map { $_ => 1 } map { my $x = $_; $x =~ s/^\s*#define\s+(LTC_\S+).*$/$1/; $x } grep { /^\s*#define\s+LTC_\S+/ } split /\n/, $cust_h; for my $d (sort keys %def) { next if $d =~ /^LTC_(DH\d+|ECC\d+|ECC_\S+|MPI|MUTEX_\S+\(x\)|NO_\S+)$/; warn "$d missing in src/misc/crypt/crypt.c\n" and $fails++ if $cryp_c !~ /\Q$d\E/; } warn( $fails > 0 ? "check-defines: FAIL $fails\n" : "check-defines: PASS\n" ); return $fails; } sub check_descriptor { my $which = shift; my $what = shift; my @src; my @descriptors; find({ wanted => sub { push @src, $_ if $_ =~ /\.c$/ }, no_chdir=>1 }, "./src/${which}/"); for my $f (@src) { my @n = map { my $x = $_; $x =~ s/^.*?ltc_${what}_descriptor\s+(\S+).*$/$1/; $x } grep { $_ =~ /ltc_${what}_descriptor/ } split /\n/, read_file($f); push @descriptors, @n if @n; } my $fails = 0; for my $d (@descriptors) { for my $f ("./src/misc/crypt/crypt_register_all_${which}.c") { my $txt = read_file($f); warn "$d missing in $f\n" and $fails++ if $txt !~ /\Q$d\E/; } } for my $d (@descriptors) { for my $f ("./tests/test.c") { my $txt = read_file($f); warn "$d missing in $f\n" and $fails++ if $txt !~ /\Q$d\E/; } } my $name = sprintf("%-17s", "check-${which}:"); warn( $fails > 0 ? "${name}FAIL $fails\n" : "${name}PASS\n" ); return $fails; } sub check_descriptors { my $fails = 0; $fails = $fails + check_descriptor("ciphers", "cipher"); $fails = $fails + check_descriptor("hashes", "hash"); $fails = $fails + check_descriptor("prngs", "prng"); return $fails; } sub check_comments { my $fails = 0; my $first_comment = <<'MARKER'; /* LibTomCrypt, modular cryptographic library -- Tom St Denis * * LibTomCrypt is a library that provides various cryptographic * algorithms in a highly modular and flexible manner. * * The library is free for all purposes without any express * guarantee it works. */ MARKER my $last_comment = <<'MARKER'; /* ref: $Format:%D$ */ /* git commit: $Format:%H$ */ /* commit time: $Format:%ai$ */ MARKER my @all_files; find({ wanted=> sub { push @all_files, $_ if $_ =~ /\.(c|h)$/ }, no_chdir=>1 }, 'demos', 'src', 'tests'); for my $f (@all_files) { my $txt = read_file($f); if ($txt !~ /^\Q$first_comment\E/s) { warn "[first_comment] $f\n"; $fails++; } if ($txt !~ /\Q$last_comment\E\s*$/s) { warn "[last_comment] $f\n"; $fails++; } } warn( $fails > 0 ? "check-comments: FAIL $fails\n" : "check-comments: PASS\n" ); return $fails; } sub prepare_variable { my ($varname, @list) = @_; my $output = "$varname="; my $len = length($output); foreach my $obj (sort @list) { $len = $len + length $obj; $obj =~ s/\*/\$/; if ($len > 100) { $output .= "\\\n"; $len = length $obj; } $output .= $obj . ' '; } $output =~ s/ $//; return $output; } sub prepare_msvc_files_xml { my ($all, $exclude_re, $targets) = @_; my $last = []; my $depth = 2; # sort files in the same order as visual studio (ugly, I know) my @parts = (); for my $orig (@$all) { my $p = $orig; $p =~ s|/|/~|g; $p =~ s|/~([^/]+)$|/$1|g; # now we have: 'src/pk/rsa/rsa_verify_hash.c' > 'src/~pk/~rsa/rsa_verify_hash.c' my @l = map { sprintf "% -99s", $_ } split /\//, $p; push @parts, [ $orig, join(':', @l) ]; } my @sorted = map { $_->[0] } sort { $a->[1] cmp $b->[1] } @parts; my $files = "<Files>\r\n"; for my $full (@sorted) { my @items = split /\//, $full; # split by '/' $full =~ s|/|\\|g; # replace '/' bt '\' shift @items; # drop first one (src) pop @items; # drop last one (filename.ext) my $current = \@items; if (join(':', @$current) ne join(':', @$last)) { my $common = 0; $common++ while ($last->[$common] && $current->[$common] && $last->[$common] eq $current->[$common]); my $back = @$last - $common; if ($back > 0) { $files .= ("\t" x --$depth) . "</Filter>\r\n" for (1..$back); } my $fwd = [ @$current ]; splice(@$fwd, 0, $common); for my $i (0..scalar(@$fwd) - 1) { $files .= ("\t" x $depth) . "<Filter\r\n"; $files .= ("\t" x $depth) . "\tName=\"$fwd->[$i]\"\r\n"; $files .= ("\t" x $depth) . "\t>\r\n"; $depth++; } $last = $current; } $files .= ("\t" x $depth) . "<File\r\n"; $files .= ("\t" x $depth) . "\tRelativePath=\"$full\"\r\n"; $files .= ("\t" x $depth) . "\t>\r\n"; if ($full =~ $exclude_re) { for (@$targets) { $files .= ("\t" x $depth) . "\t<FileConfiguration\r\n"; $files .= ("\t" x $depth) . "\t\tName=\"$_\"\r\n"; $files .= ("\t" x $depth) . "\t\tExcludedFromBuild=\"true\"\r\n"; $files .= ("\t" x $depth) . "\t\t>\r\n"; $files .= ("\t" x $depth) . "\t\t<Tool\r\n"; $files .= ("\t" x $depth) . "\t\t\tName=\"VCCLCompilerTool\"\r\n"; $files .= ("\t" x $depth) . "\t\t\tAdditionalIncludeDirectories=\"\"\r\n"; $files .= ("\t" x $depth) . "\t\t\tPreprocessorDefinitions=\"\"\r\n"; $files .= ("\t" x $depth) . "\t\t/>\r\n"; $files .= ("\t" x $depth) . "\t</FileConfiguration>\r\n"; } } ########### aes_enc "hack" disabled - discussion: https://github.com/libtom/libtomcrypt/pull/158 # if ($full eq 'src\ciphers\aes\aes.c') { #hack # my %cmd = ( # 'Debug|Win32' => [ 'Debug/aes.obj;Debug/aes_enc.obj', 'cl /nologo /MLd /W3 /Gm /GX /ZI /Od /I "src\headers" /I "..\libtommath" /D "_DEBUG" /D "LTM_DESC" /D "WIN32" /D "_MBCS" /D "_LIB" /D "LTC_SOURCE" /D "USE_LTM" /Fp"Debug/libtomcrypt.pch" /YX /Fo"Debug/" /Fd"Debug/" /FD /GZ /c $(InputPath)
cl /nologo /DENCRYPT_ONLY /MLd /W3 /Gm /GX /ZI /Od /I "src\headers" /I "..\libtommath" /D "_DEBUG" /D "LTM_DESC" /D "WIN32" /D "_MBCS" /D "_LIB" /D "LTC_SOURCE" /D "USE_LTM" /Fp"Debug/libtomcrypt.pch" /YX /Fo"Debug/aes_enc.obj" /Fd"Debug/" /FD /GZ /c $(InputPath)
' ], # 'Release|Win32' => [ 'Release/aes.obj;Release/aes_enc.obj', 'cl /nologo /MLd /W3 /Gm /GX /ZI /Od /I "src\headers" /I "..\libtommath" /D "_DEBUG" /D "LTM_DESC" /D "WIN32" /D "_MBCS" /D "_LIB" /D "LTC_SOURCE" /D "USE_LTM" /Fp"Release/libtomcrypt.pch" /YX /Fo"Release/" /Fd"Release/" /FD /GZ /c $(InputPath)
cl /nologo /DENCRYPT_ONLY /MLd /W3 /Gm /GX /ZI /Od /I "src\headers" /I "..\libtommath" /D "_DEBUG" /D "LTM_DESC" /D "WIN32" /D "_MBCS" /D "_LIB" /D "LTC_SOURCE" /D "USE_LTM" /Fp"Release/libtomcrypt.pch" /YX /Fo"Release/aes_enc.obj" /Fd"Release/" /FD /GZ /c $(InputPath)
' ], # ); # for (@$targets) { # next unless $cmd{$_}; # $files .= ("\t" x $depth) . "\t<FileConfiguration\r\n"; # $files .= ("\t" x $depth) . "\t\tName=\"$_\"\r\n"; # $files .= ("\t" x $depth) . "\t\t>\r\n"; # $files .= ("\t" x $depth) . "\t\t<Tool\r\n"; # $files .= ("\t" x $depth) . "\t\t\tName=\"VCCustomBuildTool\"\r\n"; # $files .= ("\t" x $depth) . "\t\t\tCommandLine=\"$cmd{$_}[1]\"\r\n"; # $files .= ("\t" x $depth) . "\t\t\tOutputs=\"$cmd{$_}[0]\"\r\n"; # $files .= ("\t" x $depth) . "\t\t/>\r\n"; # $files .= ("\t" x $depth) . "\t</FileConfiguration>\r\n"; # } # } $files .= ("\t" x $depth) . "</File>\r\n"; } $files .= ("\t" x --$depth) . "</Filter>\r\n" for (@$last); $files .= "\t</Files>"; return $files; } sub patch_file { my ($content, @variables) = @_; for my $v (@variables) { if ($v =~ /^([A-Z0-9_]+)\s*=.*$/si) { my $name = $1; $content =~ s/\n\Q$name\E\b.*?[^\\]\n/\n$v\n/s; } else { die "patch_file failed: " . substr($v, 0, 30) . ".."; } } return $content; } sub version_from_tomcrypt_h { my $h = read_file(shift); if ($h =~ /\n#define\s*SCRYPT\s*"([0-9]+)\.([0-9]+)\.([0-9]+)(.*)"/s) { return "VERSION_PC=$1.$2.$3", "VERSION_LT=1:1", "VERSION=$1.$2.$3$4", "PROJECT_NUMBER=$1.$2.$3$4"; } else { die "#define SCRYPT not found in tomcrypt.h"; } } sub process_makefiles { my $write = shift; my $changed_count = 0; my @c = (); find({ no_chdir => 1, wanted => sub { push @c, $_ if -f $_ && $_ =~ /\.c$/ && $_ !~ /tab.c$/ } }, 'src'); my @h = (); find({ no_chdir => 1, wanted => sub { push @h, $_ if -f $_ && $_ =~ /\.h$/ && $_ !~ /dh_static.h$/ } }, 'src'); my @all = (); find({ no_chdir => 1, wanted => sub { push @all, $_ if -f $_ && $_ =~ /\.(c|h)$/ } }, 'src'); my @t = qw(); find({ no_chdir => 1, wanted => sub { push @t, $_ if $_ =~ /(common|no_prng|_tests?|test).c$/ } }, 'tests'); my @o = sort ('src/ciphers/aes/aes_enc.o', map { my $x = $_; $x =~ s/\.c$/.o/; $x } @c); my $var_o = prepare_variable("OBJECTS", @o); my $var_h = prepare_variable("HEADERS", (sort @h)); (my $var_obj = $var_o) =~ s/\.o\b/.obj/sg; my $var_to = prepare_variable("TOBJECTS", sort map { my $x = $_; $x =~ s/\.c$/.o/; $x } @t); (my $var_tobj = $var_to) =~ s/\.o\b/.obj/sg; my @ver_version = version_from_tomcrypt_h("src/headers/tomcrypt.h"); # update MSVC project files my $msvc_files = prepare_msvc_files_xml(\@all, qr/tab\.c$/, ['Debug|Win32', 'Release|Win32', 'Debug|x64', 'Release|x64']); for my $m (qw/libtomcrypt_VS2008.vcproj/) { my $old = read_file($m); my $new = $old; $new =~ s|<Files>.*</Files>|$msvc_files|s; if ($old ne $new) { write_file($m, $new) if $write; warn "changed: $m\n"; $changed_count++; } } # update OBJECTS + HEADERS in makefile* for my $m (qw/ makefile makefile.shared makefile.unix makefile.mingw makefile.msvc makefile_include.mk doc\/Doxyfile /) { my $old = read_file($m); my $new = $m eq 'makefile.msvc' ? patch_file($old, $var_obj, $var_h, $var_tobj, @ver_version) : patch_file($old, $var_o, $var_h, $var_to, @ver_version); if ($old ne $new) { write_file($m, $new) if $write; warn "changed: $m\n"; $changed_count++; } } if ($write) { return 0; # no failures } else { warn( $changed_count > 0 ? "check-makefiles: FAIL $changed_count\n" : "check-makefiles: PASS\n" ); return $changed_count; } } sub die_usage { die <<"MARKER"; usage: $0 -s OR $0 --check-source $0 -c OR $0 --check-descriptors $0 -d OR $0 --check-defines $0 -o OR $0 --check-comments $0 -m OR $0 --check-makefiles $0 -a OR $0 --check-all $0 -u OR $0 --update-makefiles $0 --fixupind crypt.ind MARKER } GetOptions( "s|check-source" => \my $check_source, "c|check-descriptors" => \my $check_descriptors, "d|check-defines" => \my $check_defines, "o|check-comments" => \my $check_comments, "m|check-makefiles" => \my $check_makefiles, "a|check-all" => \my $check_all, "u|update-makefiles" => \my $update_makefiles, "f|fixupind=s" => \my $fixupind, "h|help" => \my $help ) or die_usage; if ($fixupind) { my $txt = read_file($fixupind); $txt =~ s/^([^\n]*\n)/$1\n\\addcontentsline{toc}{chapter}{Index}\n/s; write_file($fixupind, $txt); exit 0; } my $failure; $failure ||= check_source() if $check_all || $check_source; $failure ||= check_defines() if $check_all || $check_defines; $failure ||= check_descriptors() if $check_all || $check_descriptors; $failure ||= check_comments() if $check_all || $check_comments; $failure ||= process_makefiles(0) if $check_all || $check_makefiles; $failure ||= process_makefiles(1) if $update_makefiles; die_usage unless defined $failure; exit $failure ? 1 : 0;