2 # Copyright 1999-2018 The OpenSSL Project Authors. All Rights Reserved.
4 # Licensed under the OpenSSL license (the "License"). You may not use
5 # this file except in compliance with the License. You can obtain a copy
6 # in the file LICENSE in the source distribution or at
7 # https://www.openssl.org/source/license.html
15 my $config = "crypto/err/openssl.ec";
27 my $YEAR = $t[5] + 1900;
32 print STDERR "\n---\n$text\n" if $debug;
38 mkerr.pl [options] [files...]
42 -conf FILE Use the named config file FILE instead of the default.
44 -debug Verbose output debugging on stderr.
46 -internal Generate code that is to be built as part of OpenSSL itself.
47 Also scans internal list of files.
49 -module M Only useful with -internal!
50 Only write files for library module M. Whether files are
51 actually written or not depends on other options, such as
53 Note: this option is cumulative. If not given at all, all
54 internal modules will be considered.
56 -nowrite Do not write the header/source files, even if changed.
58 -rebuild Rebuild all header and C source files, even if there
61 -reindex Ignore previously assigned values (except for R records in
62 the config file) and renumber everything starting at 100.
64 -static Make the load/unload functions static.
66 -unref List all unreferenced function and reason codes on stderr;
69 -help Show this help text.
71 ... Additional arguments are added to the file list to scan,
72 if '-internal' was NOT specified on the command line.
79 last unless $arg =~ /-.*/;
80 $arg = $1 if $arg =~ /-(-.*)/;
81 if ( $arg eq "-conf" ) {
84 } elsif ( $arg eq "-debug" ) {
87 } elsif ( $arg eq "-internal" ) {
89 } elsif ( $arg eq "-nowrite" ) {
91 } elsif ( $arg eq "-rebuild" ) {
93 } elsif ( $arg eq "-reindex" ) {
95 } elsif ( $arg eq "-static" ) {
97 } elsif ( $arg eq "-unref" ) {
100 } elsif ( $arg eq "-module" ) {
102 $modules{uc $ARGV[0]} = 1;
103 } elsif ( $arg =~ /-*h(elp)?/ ) {
106 } elsif ( $arg =~ /-.*/ ) {
107 die "Unknown option $arg; use -h for help.\n";
114 die "Cannot mix -internal and -static\n" if $static;
115 die "Extra parameters given.\n" if @ARGV;
116 @source = ( glob('crypto/*.c'), glob('crypto/*/*.c'),
117 glob('ssl/*.c'), glob('ssl/*/*.c') );
119 die "-module isn't useful without -internal\n" if scalar keys %modules > 0;
123 # Data parsed out of the config and state files.
124 my %hinc; # lib -> header
125 my %libinc; # header -> lib
126 my %cskip; # error_file -> lib
127 my %errorfile; # lib -> error file name
128 my %fmax; # lib -> max assigned function code
129 my %rmax; # lib -> max assigned reason code
130 my %fassigned; # lib -> colon-separated list of assigned function codes
131 my %rassigned; # lib -> colon-separated list of assigned reason codes
132 my %fnew; # lib -> count of new function codes
133 my %rnew; # lib -> count of new reason codes
134 my %rextra; # "extra" reason code -> lib
135 my %rcodes; # reason-name -> value
136 my %ftrans; # old name -> #define-friendly name (all caps)
137 my %fcodes; # function-name -> value
138 my $statefile; # state file with assigned reason and function codes
139 my %strings; # define -> text
141 # Read and parse the config file
142 open(IN, "$config") || die "Can't open config file $config, $!,";
144 next if /^#/ || /^$/;
145 if ( /^L\s+(\S+)\s+(\S+)\s+(\S+)/ ) {
150 $libinc{$hdr} = $lib;
152 next if $err eq 'NONE';
153 $errorfile{$lib} = $err;
156 $fassigned{$lib} = ":";
157 $rassigned{$lib} = ":";
160 } elsif ( /^R\s+(\S+)\s+(\S+)/ ) {
163 } elsif ( /^S\s+(\S+)/ ) {
166 die "Illegal config line $_\n";
171 if ( ! $statefile ) {
172 $statefile = $config;
173 $statefile =~ s/.ec/.txt/;
176 # The statefile has all the previous assignments.
177 &phase("Reading state");
178 my $skippedstate = 0;
179 if ( ! $reindex && $statefile ) {
180 open(STATE, "<$statefile") || die "Can't open $statefile, $!";
182 # Scan function and reason codes and store them: keep a note of the
185 next if /^#/ || /^$/;
188 if ( /^(.+):(\d+):\\$/ ) {
192 $next =~ s/^\s*(.*)\s*$/$1/;
193 die "Duplicate define $name" if exists $strings{$name};
194 $strings{$name} = $next;
195 } elsif ( /^(\S+):(\d+):(.*)$/ ) {
198 die "Duplicate define $name" if exists $strings{$name};
199 $strings{$name} = $3;
201 die "Bad line in $statefile:\n$_\n";
204 $lib =~ s/^((?:OSSL_|OPENSSL_)?[^_]{2,}).*$/$1/;
205 $lib = "SSL" if $lib =~ /TLS/;
206 if ( !defined $errorfile{$lib} ) {
211 if ( $name =~ /^(?:OSSL_|OPENSSL_)?[A-Z0-9]{2,}_R_/ ) {
212 die "$lib reason code $code collision at $name\n"
213 if $rassigned{$lib} =~ /:$code:/;
214 $rassigned{$lib} .= "$code:";
215 if ( !exists $rextra{$name} ) {
216 $rmax{$lib} = $code if $code > $rmax{$lib};
218 $rcodes{$name} = $code;
219 } elsif ( $name =~ /^(?:OSSL_|OPENSSL_)?[A-Z0-9]{2,}_F_/ ) {
220 die "$lib function code $code collision at $name\n"
221 if $fassigned{$lib} =~ /:$code:/;
222 $fassigned{$lib} .= "$code:";
223 $fmax{$lib} = $code if $code > $fmax{$lib};
224 $fcodes{$name} = $code;
226 die "Bad line in $statefile:\n$_\n";
232 foreach my $lib ( sort keys %rmax ) {
233 print STDERR "Reason codes for ${lib}:\n";
234 if ( $rassigned{$lib} =~ m/^:(.*):$/ ) {
235 my @rassigned = sort { $a <=> $b } split( ":", $1 );
236 print STDERR " ", join(' ', @rassigned), "\n";
238 print STDERR " --none--\n";
242 foreach my $lib ( sort keys %fmax ) {
243 print STDERR "Function codes for ${lib}:\n";
244 if ( $fassigned{$lib} =~ m/^:(.*):$/ ) {
245 my @fassigned = sort { $a <=> $b } split( ":", $1 );
246 print STDERR " ", join(' ', @fassigned), "\n";
248 print STDERR " --none--\n";
254 # Scan each header file and make a list of error codes
256 &phase("Scanning headers");
257 while ( ( my $hdr, my $lib ) = each %libinc ) {
258 next if $hdr eq "NONE";
259 print STDERR " ." if $debug;
265 open(IN, "<$hdr") || die "Can't open $hdr, $!,";
280 if ( not /\*\// ) { # multiline comment...
281 $line = $_; # ... just accumulate
284 s/\/\*.*?\*\///gs; # wipe it
290 $cpp-- if /^#\s*endif/;
293 $cpp = 1 if /^#.*ifdef.*cplusplus/; # skip "C" declaration
295 next if /^\#/; # skip preprocessor directives
297 s/{[^{}]*}//gs; # ignore {} blocks
299 if ( /\{|\/\*/ ) { # Add a so editor works...
306 # Delete any DECLARE_ macros
308 $def =~ s/DECLARE_\w+\([\w,\s]+\)//gs;
309 foreach ( split /;/, $def ) {
311 # The goal is to collect function names from function declarations.
316 # Skip over recognized non-function declarations
317 next if /typedef\W/ or /DECLARE_STACK_OF/ or /TYPEDEF_.*_OF/;
319 # Remove STACK_OF(foo)
320 s/STACK_OF\(\w+\)/void/;
322 # Reduce argument lists to empty ()
323 # fold round brackets recursively: (t(*v)(t),t) -> (t{}{},t) -> {}
324 while ( /\(.*\)/s ) {
325 s/\([^\(\)]+\)/\{\}/gs;
326 s/\(\s*\*\s*(\w+)\s*\{\}\s*\)/$1/gs; #(*f{}) -> f
329 # pretend as we didn't use curly braces: {} -> ()
332 # Last token just before the first () is a function name.
333 if ( /(\w+)\s*\(\).*/s ) {
335 $name =~ tr/[a-z]/[A-Z]/;
337 } elsif ( /[\(\)]/ and not(/=/) ) {
338 print STDERR "Header $hdr: cannot parse: $_;\n";
344 if ( $lib eq "SSL" && $rmax{$lib} >= 1000 ) {
345 print STDERR "SSL error codes 1000+ are reserved for alerts.\n";
346 print STDERR "Any new alerts must be added to $config.\n";
351 print STDERR "\n" if $debug;
353 # Scan each C source file and look for function and reason codes
354 # This is done by looking for strings that "look like" function or
355 # reason codes: basically anything consisting of all upper case and
356 # numerics which has _F_ or _R_ in it and which has the name of an
357 # error library at the start. This seems to work fine except for the
358 # oddly named structure BIO_F_CTX which needs to be ignored.
359 # If a code doesn't exist in list compiled from headers then mark it
360 # with the value "X" as a place holder to give it a value later.
361 # Store all function and reason codes found in %usedfuncs and %usedreasons
362 # so all those unreferenced can be printed out.
363 &phase("Scanning source");
366 foreach my $file ( @source ) {
367 # Don't parse the error source file.
368 next if exists $cskip{$file};
369 open( IN, "<$file" ) || die "Can't open $file, $!,";
372 print STDERR "$file:\n" if $debug;
375 # skip obsoleted source files entirely!
376 last if /^#error\s+obsolete/;
378 if ( !/;$/ && /^\**([a-zA-Z_].*[\s*])?([A-Za-z_0-9]+)\(.*([),]|$)/ ) {
379 /^([^()]*(\([^()]*\)[^()]*)*)\(/;
380 $1 =~ /([A-Za-z_0-9]*)$/;
384 if ( /(((?:OSSL_|OPENSSL_)?[A-Z0-9]{2,})_F_([A-Z0-9_]+))/ ) {
385 next unless exists $errorfile{$2};
386 next if $1 eq "BIO_F_BUFFER_CTX";
388 if ( !exists $fcodes{$1} ) {
389 print STDERR " New function $1\n" if $debug;
393 $ftrans{$3} = $func unless exists $ftrans{$3};
394 if ( uc($func) ne $3 ) {
395 print STDERR "ERROR: mismatch $file:$linenr $func:$3\n";
398 print STDERR " Function $1 = $fcodes{$1}\n"
401 if ( /(((?:OSSL_|OPENSSL_)?[A-Z0-9]{2,})_R_[A-Z0-9_]+)/ ) {
402 next unless exists $errorfile{$2};
403 $usedreasons{$1} = 1;
404 if ( !exists $rcodes{$1} ) {
405 print STDERR " New reason $1\n" if $debug;
409 print STDERR " Reason $1 = $rcodes{$1}\n" if $debug;
414 print STDERR "\n" if $debug;
416 # Now process each library in turn.
417 &phase("Writing files");
419 foreach my $lib ( keys %errorfile ) {
420 if ( ! $fnew{$lib} && ! $rnew{$lib} ) {
421 next unless $rebuild;
423 next if scalar keys %modules > 0 && !$modules{$lib};
425 print STDERR "$lib: $fnew{$lib} new functions\n" if $fnew{$lib};
426 print STDERR "$lib: $rnew{$lib} new reasons\n" if $rnew{$lib};
429 # If we get here then we have some new error codes so we
430 # need to rebuild the header file and C file.
432 # Make a sorted list of error and reason codes for later use.
433 my @function = sort grep( /^${lib}_/, keys %fcodes );
434 my @reasons = sort grep( /^${lib}_/, keys %rcodes );
436 # indent level for innermost preprocessor lines
439 # Rewrite the header file
441 my $hfile = $hinc{$lib};
442 $hfile =~ s/.h$/err.h/ if $internal;
443 open( OUT, ">$hfile" ) || die "Can't write to $hfile, $!,";
446 * Generated by util/mkerr.pl DO NOT EDIT
447 * Copyright 1995-$YEAR The OpenSSL Project Authors. All Rights Reserved.
449 * Licensed under the OpenSSL license (the \"License\"). You may not use
450 * this file except in compliance with the License. You can obtain a copy
451 * in the file LICENSE in the source distribution or at
452 * https://www.openssl.org/source/license.html
455 #ifndef HEADER_${lib}ERR_H
456 # define HEADER_${lib}ERR_H
460 # Declare the load function because the generate C file
461 # includes "fooerr.h" not "foo.h"
462 if ($lib ne "SSL" && $lib ne "ASYNC"
463 && grep { $lib eq uc $_ } @disablables) {
465 # include <openssl/opensslconf.h>
467 # ifndef OPENSSL_NO_${lib}
473 #${indent}ifdef __cplusplus
476 int ERR_load_${lib}_strings(void);
480 # define ${lib}err(f, r) ERR_${lib}_error((f), (r), OPENSSL_FILE, OPENSSL_LINE)
489 int ERR_load_${lib}_strings(void);
490 void ERR_unload_${lib}_strings(void);
491 void ERR_${lib}_error(int function, int reason, char *file, int line);
499 print OUT "\n/*\n * $lib function codes.\n */\n";
500 foreach my $i ( @function ) {
501 my $z = 48 - length($i);
503 if ( $fcodes{$i} eq "X" ) {
504 $fassigned{$lib} =~ m/^:([^:]*):/;
506 $findcode = $fmax{$lib} if !defined $findcode;
507 while ( $fassigned{$lib} =~ m/:$findcode:/ ) {
510 $fcodes{$i} = $findcode;
511 $fassigned{$lib} .= "$findcode:";
512 print STDERR "New Function code $i\n" if $debug;
514 printf OUT "#${indent}define $i%s $fcodes{$i}\n", " " x $z;
517 print OUT "\n/*\n * $lib reason codes.\n */\n";
518 foreach my $i ( @reasons ) {
519 my $z = 48 - length($i);
521 if ( $rcodes{$i} eq "X" ) {
522 $rassigned{$lib} =~ m/^:([^:]*):/;
524 $findcode = $rmax{$lib} if !defined $findcode;
525 while ( $rassigned{$lib} =~ m/:$findcode:/ ) {
528 $rcodes{$i} = $findcode;
529 $rassigned{$lib} .= "$findcode:";
530 print STDERR "New Reason code $i\n" if $debug;
532 printf OUT "#${indent}define $i%s $rcodes{$i}\n", " " x $z;
536 while (length($indent) > 0) {
537 $indent = substr $indent, 0, -1;
538 print OUT "#${indent}endif\n";
541 # Rewrite the C source file containing the error details.
543 # First, read any existing reason string definitions:
544 my $cfile = $errorfile{$lib};
545 my $pack_lib = $internal ? "ERR_LIB_${lib}" : "0";
547 $hincf =~ s|.*include/||;
548 if ( $hincf =~ m|^openssl/| ) {
549 $hincf = "<${hincf}>";
551 $hincf = "\"${hincf}\"";
554 open( OUT, ">$cfile" )
555 || die "Can't open $cfile for writing, $!, stopped";
557 my $const = $internal ? 'const ' : '';
561 * Generated by util/mkerr.pl DO NOT EDIT
562 * Copyright 1995-$YEAR The OpenSSL Project Authors. All Rights Reserved.
564 * Licensed under the OpenSSL license (the "License"). You may not use
565 * this file except in compliance with the License. You can obtain a copy
566 * in the file LICENSE in the source distribution or at
567 * https://www.openssl.org/source/license.html
570 #include <openssl/err.h>
573 #ifndef OPENSSL_NO_ERR
575 static ${const}ERR_STRING_DATA ${lib}_str_functs[] = {
578 # Add each function code: if a function name is found then use it.
579 foreach my $i ( @function ) {
581 if ( exists $strings{$i} and $strings{$i} ne '' ) {
583 $fn = "" if $fn eq '*';
585 $i =~ /^${lib}_F_(\S+)$/;
587 $fn = $ftrans{$fn} if exists $ftrans{$fn};
590 my $short = " {ERR_PACK($pack_lib, $i, 0), \"$fn\"},";
591 if ( length($short) <= 80 ) {
592 print OUT "$short\n";
594 print OUT " {ERR_PACK($pack_lib, $i, 0),\n \"$fn\"},\n";
601 static ${const}ERR_STRING_DATA ${lib}_str_reasons[] = {
604 # Add each reason code.
605 foreach my $i ( @reasons ) {
607 if ( exists $strings{$i} ) {
609 $rn = "" if $rn eq '*';
611 $i =~ /^${lib}_R_(\S+)$/;
613 $rn =~ tr/_[A-Z]/ [a-z]/;
616 my $short = " {ERR_PACK($pack_lib, 0, $i), \"$rn\"},";
617 if ( length($short) <= 80 ) {
618 print OUT "$short\n";
620 print OUT " {ERR_PACK($pack_lib, 0, $i),\n \"$rn\"},\n";
632 int ERR_load_${lib}_strings(void)
634 #ifndef OPENSSL_NO_ERR
635 if (ERR_func_error_string(${lib}_str_functs[0].error) == NULL) {
636 ERR_load_strings_const(${lib}_str_functs);
637 ERR_load_strings_const(${lib}_str_reasons);
644 my $st = $static ? "static " : "";
647 static int lib_code = 0;
648 static int error_loaded = 0;
650 ${st}int ERR_load_${lib}_strings(void)
653 lib_code = ERR_get_next_error_library();
656 #ifndef OPENSSL_NO_ERR
657 ERR_load_strings(lib_code, ${lib}_str_functs);
658 ERR_load_strings(lib_code, ${lib}_str_reasons);
665 ${st}void ERR_unload_${lib}_strings(void)
668 #ifndef OPENSSL_NO_ERR
669 ERR_unload_strings(lib_code, ${lib}_str_functs);
670 ERR_unload_strings(lib_code, ${lib}_str_reasons);
676 ${st}void ERR_${lib}_error(int function, int reason, char *file, int line)
679 lib_code = ERR_get_next_error_library();
680 ERR_PUT_error(lib_code, function, reason, file, line);
690 # Make a list of unreferenced function and reason codes
693 foreach ( keys %fcodes ) {
694 push( @funref, $_ ) unless exists $usedfuncs{$_};
697 foreach ( keys %rcodes ) {
698 push( @runref, $_ ) unless exists $usedreasons{$_};
701 print STDERR "The following function codes were not referenced:\n";
702 foreach ( sort @funref ) {
703 print STDERR " $_\n";
707 print STDERR "The following reason codes were not referenced:\n";
708 foreach ( sort @runref ) {
709 print STDERR " $_\n";
714 die "Found $errors errors, quitting" if $errors;
716 # Update the state file
718 open(OUT, ">$statefile.new")
719 || die "Can't write $statefile.new, $!";
721 # Copyright 1999-$YEAR The OpenSSL Project Authors. All Rights Reserved.
723 # Licensed under the OpenSSL license (the "License"). You may not use
724 # this file except in compliance with the License. You can obtain a copy
725 # in the file LICENSE in the source distribution or at
726 # https://www.openssl.org/source/license.html
728 print OUT "\n# Function codes\n";
729 foreach my $i ( sort keys %fcodes ) {
730 my $short = "$i:$fcodes{$i}:";
731 my $t = exists $strings{$i} ? $strings{$i} : "";
732 $t = "\\\n\t" . $t if length($short) + length($t) > 80;
733 print OUT "$short$t\n";
735 print OUT "\n#Reason codes\n";
736 foreach my $i ( sort keys %rcodes ) {
737 my $short = "$i:$rcodes{$i}:";
738 my $t = exists $strings{$i} ? "$strings{$i}" : "";
739 $t = "\\\n\t" . $t if length($short) + length($t) > 80;
740 print OUT "$short$t\n" if !exists $rextra{$i};
743 if ( $skippedstate ) {
744 print "Skipped state, leaving update in $statefile.new";
746 rename "$statefile", "$statefile.old"
747 || die "Can't backup $statefile to $statefile.old, $!";
748 rename "$statefile.new", "$statefile"
749 || die "Can't rename $statefile to $statefile.new, $!";