Dmitry Belyavskiy
2 years ago
parent
fea833cb56
commit
f3b52e907b
@ -0,0 +1,174 @@
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diff -up openssl-3.0.1/tools/c_rehash.in.cve20222068 openssl-3.0.1/tools/c_rehash.in
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--- openssl-3.0.1/tools/c_rehash.in.cve20222068 2022-06-22 13:15:57.347421765 +0200
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+++ openssl-3.0.1/tools/c_rehash.in 2022-06-22 13:16:14.797576250 +0200
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@@ -104,18 +104,41 @@ foreach (@dirlist) {
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}
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exit($errorcount);
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+sub copy_file {
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+ my ($src_fname, $dst_fname) = @_;
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+
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+ if (open(my $in, "<", $src_fname)) {
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+ if (open(my $out, ">", $dst_fname)) {
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+ print $out $_ while (<$in>);
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+ close $out;
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+ } else {
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+ warn "Cannot open $dst_fname for write, $!";
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+ }
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+ close $in;
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+ } else {
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+ warn "Cannot open $src_fname for read, $!";
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+ }
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+}
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+
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sub hash_dir {
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+ my $dir = shift;
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my %hashlist;
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- print "Doing $_[0]\n";
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- chdir $_[0];
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- opendir(DIR, ".");
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+
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+ print "Doing $dir\n";
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+
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+ if (!chdir $dir) {
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+ print STDERR "WARNING: Cannot chdir to '$dir', $!\n";
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+ return;
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+ }
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+
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+ opendir(DIR, ".") || print STDERR "WARNING: Cannot opendir '.', $!\n";
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my @flist = sort readdir(DIR);
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closedir DIR;
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if ( $removelinks ) {
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# Delete any existing symbolic links
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foreach (grep {/^[\da-f]+\.r{0,1}\d+$/} @flist) {
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if (-l $_) {
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- print "unlink $_" if $verbose;
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+ print "unlink $_\n" if $verbose;
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unlink $_ || warn "Can't unlink $_, $!\n";
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}
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}
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@@ -130,13 +153,16 @@ sub hash_dir {
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link_hash_cert($fname) if ($cert);
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link_hash_crl($fname) if ($crl);
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}
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+
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+ chdir $pwd;
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}
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sub check_file {
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my ($is_cert, $is_crl) = (0,0);
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my $fname = $_[0];
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- open IN, $fname;
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- while(<IN>) {
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+
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+ open(my $in, "<", $fname);
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+ while(<$in>) {
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if (/^-----BEGIN (.*)-----/) {
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my $hdr = $1;
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if ($hdr =~ /^(X509 |TRUSTED |)CERTIFICATE$/) {
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@@ -148,7 +174,7 @@ sub check_file {
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}
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}
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}
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- close IN;
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+ close $in;
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return ($is_cert, $is_crl);
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}
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@@ -177,76 +203,49 @@ sub compute_hash {
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# certificate fingerprints
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sub link_hash_cert {
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- my $fname = $_[0];
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- my ($hash, $fprint) = compute_hash($openssl, "x509", $x509hash,
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- "-fingerprint", "-noout",
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- "-in", $fname);
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- chomp $hash;
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- chomp $fprint;
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- return if !$hash;
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- $fprint =~ s/^.*=//;
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- $fprint =~ tr/://d;
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- my $suffix = 0;
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- # Search for an unused hash filename
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- while(exists $hashlist{"$hash.$suffix"}) {
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- # Hash matches: if fingerprint matches its a duplicate cert
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- if ($hashlist{"$hash.$suffix"} eq $fprint) {
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- print STDERR "WARNING: Skipping duplicate certificate $fname\n";
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- return;
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- }
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- $suffix++;
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- }
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- $hash .= ".$suffix";
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- if ($symlink_exists) {
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- print "link $fname -> $hash\n" if $verbose;
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- symlink $fname, $hash || warn "Can't symlink, $!";
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- } else {
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- print "copy $fname -> $hash\n" if $verbose;
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- if (open($in, "<", $fname)) {
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- if (open($out,">", $hash)) {
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- print $out $_ while (<$in>);
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- close $out;
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- } else {
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- warn "can't open $hash for write, $!";
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- }
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- close $in;
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- } else {
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- warn "can't open $fname for read, $!";
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- }
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- }
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- $hashlist{$hash} = $fprint;
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+ link_hash($_[0], 'cert');
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}
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# Same as above except for a CRL. CRL links are of the form <hash>.r<n>
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sub link_hash_crl {
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- my $fname = $_[0];
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- my ($hash, $fprint) = compute_hash($openssl, "crl", $crlhash,
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+ link_hash($_[0], 'crl');
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+}
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+
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+sub link_hash {
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+ my ($fname, $type) = @_;
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+ my $is_cert = $type eq 'cert';
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+
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+ my ($hash, $fprint) = compute_hash($openssl,
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+ $is_cert ? "x509" : "crl",
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+ $is_cert ? $x509hash : $crlhash,
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"-fingerprint", "-noout",
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"-in", $fname);
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chomp $hash;
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+ $hash =~ s/^.*=// if !$is_cert;
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chomp $fprint;
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return if !$hash;
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$fprint =~ s/^.*=//;
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$fprint =~ tr/://d;
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my $suffix = 0;
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# Search for an unused hash filename
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- while(exists $hashlist{"$hash.r$suffix"}) {
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+ my $crlmark = $is_cert ? "" : "r";
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+ while(exists $hashlist{"$hash.$crlmark$suffix"}) {
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# Hash matches: if fingerprint matches its a duplicate cert
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- if ($hashlist{"$hash.r$suffix"} eq $fprint) {
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- print STDERR "WARNING: Skipping duplicate CRL $fname\n";
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+ if ($hashlist{"$hash.$crlmark$suffix"} eq $fprint) {
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+ my $what = $is_cert ? 'certificate' : 'CRL';
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+ print STDERR "WARNING: Skipping duplicate $what $fname\n";
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return;
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}
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$suffix++;
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}
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- $hash .= ".r$suffix";
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+ $hash .= ".$crlmark$suffix";
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if ($symlink_exists) {
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print "link $fname -> $hash\n" if $verbose;
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symlink $fname, $hash || warn "Can't symlink, $!";
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} else {
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- print "cp $fname -> $hash\n" if $verbose;
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- system ("cp", $fname, $hash);
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- warn "Can't copy, $!" if ($? >> 8) != 0;
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+ print "copy $fname -> $hash\n" if $verbose;
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+ copy_file($fname, $hash);
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}
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$hashlist{$hash} = $fprint;
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}
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