X-Git-Url: https://git.openssl.org/?p=openssl.git;a=blobdiff_plain;f=tools%2Fc_rehash.in;h=e65822203dba36bb8fbe68ed01404f45df11830f;hp=cc3b65871f06a8987e9509ebe32de9244bd4221a;hb=7622baf8a7c3e9084f97a4f41406a29ef5d04fc3;hpb=31ff97b28a7d9c64192b8987b204ad9820c7b2c7

diff --git a/tools/c_rehash.in b/tools/c_rehash.in
index cc3b65871f..e65822203d 100644
--- a/tools/c_rehash.in
+++ b/tools/c_rehash.in
@@ -1,61 +1,231 @@
-#!/bin/sh
-#
-# redo the hashes for the certificates in your cert path or the ones passed
-# on the command line.
+#!{- $config{hashbangperl} -}
+
+# {- join("\n# ", @autowarntext) -}
+# Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved.
 #
+# Licensed under the OpenSSL license (the "License").  You may not use
+# this file except in compliance with the License.  You can obtain a copy
+# in the file LICENSE in the source distribution or at
+# https://www.openssl.org/source/license.html
+
+# Perl c_rehash script, scan all files in a directory
+# and add symbolic links to their hash values.
+
+my $dir = {- quotify1($config{openssldir}) -};
+my $prefix = {- quotify1($config{prefix}) -};
+
+my $errorcount = 0;
+my $openssl = $ENV{OPENSSL} || "openssl";
+my $pwd;
+my $x509hash = "-subject_hash";
+my $crlhash = "-hash";
+my $verbose = 0;
+my $symlink_exists=eval {symlink("",""); 1};
+my $removelinks = 1;
+
+##  Parse flags.
+while ( $ARGV[0] =~ /^-/ ) {
+    my $flag = shift @ARGV;
+    last if ( $flag eq '--');
+    if ( $flag eq '-old') {
+	    $x509hash = "-subject_hash_old";
+	    $crlhash = "-hash_old";
+    } elsif ( $flag eq '-h' || $flag eq '-help' ) {
+	    help();
+    } elsif ( $flag eq '-n' ) {
+	    $removelinks = 0;
+    } elsif ( $flag eq '-v' ) {
+	    $verbose++;
+    }
+    else {
+	    print STDERR "Usage error; try -h.\n";
+	    exit 1;
+    }
+}
+
+sub help {
+	print "Usage: c_rehash [-old] [-h] [-help] [-v] [dirs...]\n";
+	print "   -old use old-style digest\n";
+	print "   -h or -help print this help text\n";
+	print "   -v print files removed and linked\n";
+	exit 0;
+}
+
+eval "require Cwd";
+if (defined(&Cwd::getcwd)) {
+	$pwd=Cwd::getcwd();
+} else {
+	$pwd=`pwd`;
+	chomp($pwd);
+}
+
+# DOS/Win32 or Unix delimiter?  Prefix our installdir, then search.
+my $path_delim = ($pwd =~ /^[a-z]\:/i) ? ';' : ':';
+$ENV{PATH} = "$prefix/bin" . ($ENV{PATH} ? $path_delim . $ENV{PATH} : "");
+
+if (! -x $openssl) {
+	my $found = 0;
+	foreach (split /$path_delim/, $ENV{PATH}) {
+		if (-x "$_/$openssl") {
+			$found = 1;
+			$openssl = "$_/$openssl";
+			last;
+		}	
+	}
+	if ($found == 0) {
+		print STDERR "c_rehash: rehashing skipped ('openssl' program not available)\n";
+		exit 0;
+	}
+}
+
+if (@ARGV) {
+	@dirlist = @ARGV;
+} elsif ($ENV{SSL_CERT_DIR}) {
+	@dirlist = split /$path_delim/, $ENV{SSL_CERT_DIR};
+} else {
+	$dirlist[0] = "$dir/certs";
+}
+
+if (-d $dirlist[0]) {
+	chdir $dirlist[0];
+	$openssl="$pwd/$openssl" if (!-x $openssl);
+	chdir $pwd;
+}
+
+foreach (@dirlist) {
+	if (-d $_ ) {
+            if ( -w $_) {
+		hash_dir($_);
+            } else {
+                print "Skipping $_, can't write\n";
+                $errorcount++;
+            }
+	}
+}
+exit($errorcount);
+
+sub hash_dir {
+	my %hashlist;
+	print "Doing $_[0]\n";
+	chdir $_[0];
+	opendir(DIR, ".");
+	my @flist = sort readdir(DIR);
+	closedir DIR;
+	if ( $removelinks ) {
+		# Delete any existing symbolic links
+		foreach (grep {/^[\da-f]+\.r{0,1}\d+$/} @flist) {
+			if (-l $_) {
+				print "unlink $_" if $verbose;
+				unlink $_ || warn "Can't unlink $_, $!\n";
+			}
+		}
+	}
+	FILE: foreach $fname (grep {/\.(pem)|(crt)|(cer)|(crl)$/} @flist) {
+		# Check to see if certificates and/or CRLs present.
+		my ($cert, $crl) = check_file($fname);
+		if (!$cert && !$crl) {
+			print STDERR "WARNING: $fname does not contain a certificate or CRL: skipping\n";
+			next;
+		}
+		link_hash_cert($fname) if ($cert);
+		link_hash_crl($fname) if ($crl);
+	}
+}
+
+sub check_file {
+	my ($is_cert, $is_crl) = (0,0);
+	my $fname = $_[0];
+	open IN, $fname;
+	while(<IN>) {
+		if (/^-----BEGIN (.*)-----/) {
+			my $hdr = $1;
+			if ($hdr =~ /^(X509 |TRUSTED |)CERTIFICATE$/) {
+				$is_cert = 1;
+				last if ($is_crl);
+			} elsif ($hdr eq "X509 CRL") {
+				$is_crl = 1;
+				last if ($is_cert);
+			}
+		}
+	}
+	close IN;
+	return ($is_cert, $is_crl);
+}
+
+
+# Link a certificate to its subject name hash value, each hash is of
+# the form <hash>.<n> where n is an integer. If the hash value already exists
+# then we need to up the value of n, unless its a duplicate in which
+# case we skip the link. We check for duplicates by comparing the
+# certificate fingerprints
+
+sub link_hash_cert {
+		my $fname = $_[0];
+		$fname =~ s/'/'\\''/g;
+		my ($hash, $fprint) = `"$openssl" x509 $x509hash -fingerprint -noout -in "$fname"`;
+		chomp $hash;
+		chomp $fprint;
+		$fprint =~ s/^.*=//;
+		$fprint =~ tr/://d;
+		my $suffix = 0;
+		# Search for an unused hash filename
+		while(exists $hashlist{"$hash.$suffix"}) {
+			# Hash matches: if fingerprint matches its a duplicate cert
+			if ($hashlist{"$hash.$suffix"} eq $fprint) {
+				print STDERR "WARNING: Skipping duplicate certificate $fname\n";
+				return;
+			}
+			$suffix++;
+		}
+		$hash .= ".$suffix";
+		if ($symlink_exists) {
+			print "link $fname -> $hash\n" if $verbose;
+			symlink $fname, $hash || warn "Can't symlink, $!";
+		} else {
+			print "copy $fname -> $hash\n" if $verbose;
+                        if (open($in, "<", $fname)) {
+                            if (open($out,">", $hash)) {
+                                print $out $_ while (<$in>);
+                                close $out;
+                            } else {
+                                warn "can't open $hash for write, $!";
+                            }
+                            close $in;
+                        } else {
+                            warn "can't open $fname for read, $!";
+                        }
+		}
+		$hashlist{$hash} = $fprint;
+}
+
+# Same as above except for a CRL. CRL links are of the form <hash>.r<n>
 
-if [ "$OPENSSL"x = "x" -o ! -x "$OPENSSL" ]; then
-	OPENSSL='openssl'
-	export OPENSSL
-fi
-DIR=/usr/local/ssl
-PATH=$DIR/bin:$PATH
-
-if [ ! -f "$OPENSSL" ]; then
-    found=0
-    for dir in . `echo $PATH | sed -e 's/:/ /g'`; do
-        if [ -f "$dir/$OPENSSL" ]; then
-            found=1
-            break
-        fi
-    done
-    if [ $found = 0 ]; then
-        echo "c_rehash: rehashing skipped ('openssl' program not available)" 1>&2
-        exit 0
-    fi
-fi
-
-SSL_DIR=$DIR/certs
-
-if [ "$*" = "" ]; then
-	CERTS=${*:-${SSL_CERT_DIR:-$SSL_DIR}}
-else
-	CERTS=$*
-fi
-
-IFS=': '
-for i in $CERTS
-do
-  (
-  IFS=' '
-  if [ -d $i -a -w $i ]; then
-    cd $i
-    echo "Doing $i"
-    for i in *.pem
-    do
-      if [ $i != '*.pem' ]; then
-        h=`$OPENSSL x509 -hash -noout -in $i`
-	if [ "x$h" = "x" ]; then
-	  echo $i does not contain a certificate
-	else
-          if [ -f $h.0 ]; then
-            /bin/rm -f $h.0
-          fi
-          echo "$i => $h.0"
-          ln -s $i $h.0
-	fi
-      fi
-    done
-  fi
-  )
-done
+sub link_hash_crl {
+		my $fname = $_[0];
+		$fname =~ s/'/'\\''/g;
+		my ($hash, $fprint) = `"$openssl" crl $crlhash -fingerprint -noout -in '$fname'`;
+		chomp $hash;
+		chomp $fprint;
+		$fprint =~ s/^.*=//;
+		$fprint =~ tr/://d;
+		my $suffix = 0;
+		# Search for an unused hash filename
+		while(exists $hashlist{"$hash.r$suffix"}) {
+			# Hash matches: if fingerprint matches its a duplicate cert
+			if ($hashlist{"$hash.r$suffix"} eq $fprint) {
+				print STDERR "WARNING: Skipping duplicate CRL $fname\n";
+				return;
+			}
+			$suffix++;
+		}
+		$hash .= ".r$suffix";
+		if ($symlink_exists) {
+			print "link $fname -> $hash\n" if $verbose;
+			symlink $fname, $hash || warn "Can't symlink, $!";
+		} else {
+			print "cp $fname -> $hash\n" if $verbose;
+			system ("cp", $fname, $hash);
+                        warn "Can't copy, $!" if ($? >> 8) != 0;
+		}
+		$hashlist{$hash} = $fprint;
+}