1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
|
#!/usr/bin/perl
# Perl c_rehash script, scan all files in a directory
# and add symbolic links to their hash values.
my $dir = "/usr/local/ssl";
my $prefix = "/usr/local/ssl";
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') {
help();
} elsif ( $flag eq '-n' ) {
$removelinks = 0;
} elsif ( $flag eq '-v' ) {
$verbose++;
}
else {
print STDERR "Usage error; try -help.\n";
exit 1;
}
}
sub help {
print "Usage: c_rehash [-old] [-h] [-v] [dirs...]\n";
print " -old use old-style digest\n";
print " -h 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 $_ and -w $_) {
hash_dir($_);
}
}
sub hash_dir {
my %hashlist;
print "Doing $_[0]\n";
chdir $_[0];
opendir(DIR, ".");
my @flist = readdir(DIR);
closedir DIR;
if ( $removelinks ) {
# Delete any existing symbolic links
foreach (grep {/^[\da-f]+\.r{0,1}\d+$/} @flist) {
if(-l $_) {
unlink $_;
print "unlink $_" if $verbose;
}
}
}
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) {
symlink $fname, $hash;
print "link $fname -> $hash\n" if $verbose;
} else {
open IN,"<$fname" or die "can't open $fname for read";
open OUT,">$hash" or die "can't open $hash for write";
print OUT <IN>; # does the job for small text files
close OUT;
close IN;
print "copy $fname -> $hash\n" if $verbose;
}
$hashlist{$hash} = $fprint;
}
# Same as above except for a CRL. CRL links are of the form <hash>.r<n>
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) {
symlink $fname, $hash;
print "link $fname -> $hash\n" if $verbose;
} else {
system ("cp", $fname, $hash);
print "cp $fname -> $hash\n" if $verbose;
}
$hashlist{$hash} = $fprint;
}
|
