[ViewVC] Diff of: cvs/Convert-BER-XS/XS.pm

Comparing Convert-BER-XS/XS.pm (file contents):
Revision 1.31 by root, Sat Apr 20 15:49:04 2019 UTC vs.
Revision 1.58 by root, Sat Apr 27 14:54:40 2019 UTC

…		…
8		8
9	my $ber = ber_decode $buf, $Convert::BER::XS::SNMP_PROFILE	9	my $ber = ber_decode $buf, $Convert::BER::XS::SNMP_PROFILE
10	or die "unable to decode SNMP message";	10	or die "unable to decode SNMP message";
11		11
12	# The above results in a data structure consisting of	12	# The above results in a data structure consisting of
13	# (class, tag, flags, data)	13	# (class, tag, flags, data)
14	# tuples. Below is such a message, SNMPv1 trap	14	# tuples. Below is such a message, SNMPv1 trap
15	# with a Cisco mac change notification.	15	# with a Cisco mac change notification.
16	# Did you know that Cisco is in the news almost	16	# Did you know that Cisco is in the news almost
17	# every week because of some backdoor password	17	# every week because of some backdoor password
18	# or other extremely stupid security bug?	18	# or other extremely stupid security bug?
…		…
36	[ ASN_UNIVERSAL, ASN_OCTET_STRING, 0, "...data..." # the value	36	[ ASN_UNIVERSAL, ASN_OCTET_STRING, 0, "...data..." # the value
37	]	37	]
38	]	38	]
39	],	39	],
40	...	40	...
		41	# let's dump it, for debugging
		42
		43	ber_dump $ber, $Convert::BER::XS::SNMP_PROFILE;
41		44
42	# let's decode it a bit with some helper functions	45	# let's decode it a bit with some helper functions
43		46
44	my $msg = ber_is_seq $ber	47	my $msg = ber_is_seq $ber
45	or die "SNMP message does not start with a sequence";	48	or die "SNMP message does not start with a sequence";
…		…
105	BER_CLASS BER_TAG BER_FLAGS BER_DATA	108	BER_CLASS BER_TAG BER_FLAGS BER_DATA
106		109
107	=item C<:const_asn>	110	=item C<:const_asn>
108		111
109	ASN class values (these are C<0>, C<1>, C<2> and C<3>, respectively -	112	ASN class values (these are C<0>, C<1>, C<2> and C<3>, respectively -
110	exactly thw two topmost bits from the identifier octet shifted 6 bits to	113	exactly the two topmost bits from the identifier octet shifted 6 bits to
111	the right):	114	the right):
112		115
113	ASN_UNIVERSAL ASN_APPLICATION ASN_CONTEXT ASN_PRIVATE	116	ASN_UNIVERSAL ASN_APPLICATION ASN_CONTEXT ASN_PRIVATE
114		117
115	ASN tag values (some of which are aliases, such as C<ASN_OID>). Their	118	ASN tag values (some of which are aliases, such as C<ASN_OID>). Their
116	numerical value corresponds exactly to the numbers used in BER/X.690.	119	numerical value corresponds exactly to the numbers used in BER/X.690.
117		120
118	ASN_BOOLEAN ASN_INTEGER ASN_BIT_STRING ASN_OCTET_STRING ASN_NULL ASN_OBJECT_IDENTIFIER	121	ASN_BOOLEAN ASN_INTEGER ASN_BIT_STRING ASN_OCTET_STRING ASN_NULL ASN_OID
119	ASN_OBJECT_DESCRIPTOR ASN_OID ASN_EXTERNAL ASN_REAL ASN_SEQUENCE ASN_ENUMERATED	122	ASN_OBJECT_IDENTIFIER ASN_OBJECT_DESCRIPTOR ASN_EXTERNAL ASN_REAL ASN_SEQUENCE ASN_ENUMERATED
120	ASN_EMBEDDED_PDV ASN_UTF8_STRING ASN_RELATIVE_OID ASN_SET ASN_NUMERIC_STRING	123	ASN_EMBEDDED_PDV ASN_UTF8_STRING ASN_RELATIVE_OID ASN_SET ASN_NUMERIC_STRING
121	ASN_PRINTABLE_STRING ASN_TELETEX_STRING ASN_T61_STRING ASN_VIDEOTEX_STRING ASN_IA5_STRING	124	ASN_PRINTABLE_STRING ASN_TELETEX_STRING ASN_T61_STRING ASN_VIDEOTEX_STRING ASN_IA5_STRING
122	ASN_ASCII_STRING ASN_UTC_TIME ASN_GENERALIZED_TIME ASN_GRAPHIC_STRING ASN_VISIBLE_STRING	125	ASN_ASCII_STRING ASN_UTC_TIME ASN_GENERALIZED_TIME ASN_GRAPHIC_STRING ASN_VISIBLE_STRING
123	ASN_ISO646_STRING ASN_GENERAL_STRING ASN_UNIVERSAL_STRING ASN_CHARACTER_STRING ASN_BMP_STRING	126	ASN_ISO646_STRING ASN_GENERAL_STRING ASN_UNIVERSAL_STRING ASN_CHARACTER_STRING ASN_BMP_STRING
124		127
…		…
134		137
135	Constants only relevant to SNMP. These are the tag values used by SNMP in	138	Constants only relevant to SNMP. These are the tag values used by SNMP in
136	the C<ASN_APPLICATION> namespace and have the exact numerical value as in	139	the C<ASN_APPLICATION> namespace and have the exact numerical value as in
137	BER/RFC 2578.	140	BER/RFC 2578.
138		141
139	SNMP_IPADDRESS SNMP_COUNTER32 SNMP_UNSIGNED32 SNMP_TIMETICKS SNMP_OPAQUE SNMP_COUNTER64	142	SNMP_IPADDRESS SNMP_COUNTER32 SNMP_UNSIGNED32 SNMP_GAUGE32
		143	SNMP_TIMETICKS SNMP_OPAQUE SNMP_COUNTER64
140		144
141	=item C<:decode>	145	=item C<:decode>
142		146
143	C<ber_decode> and the match helper functions:	147	C<ber_decode> and the match helper functions:
144		148
		149	ber_decode ber-decode_prefix
145	ber_decode ber_is ber_is_seq ber_is_int ber_is_oid	150	ber_is ber_is_seq ber_is_int ber_is_oid
		151	ber_dump
146		152
147	=item C<:encode>	153	=item C<:encode>
148		154
149	C<ber_encode> and the construction helper functions:	155	C<ber_encode> and the construction helper functions:
150		156
151	ber_encode ber_int	157	ber_encode
		158	ber_int
152		159
153	=back	160	=back
154		161
155	=head2 ASN.1/BER/DER/... BASICS	162	=head2 ASN.1/BER/DER/... BASICS
156		163
…		…
252		259
253	=head2 DECODING AND ENCODING	260	=head2 DECODING AND ENCODING
254		261
255	=over	262	=over
256		263
257	=item $tuple = ber_decoded $bindata[, $profile]	264	=item $tuple = ber_decode $bindata[, $profile]
258		265
259	Decodes binary BER data in C<$bindata> and returns the resulting BER	266	Decodes binary BER data in C<$bindata> and returns the resulting BER
260	tuple. Croaks on any decoding error, so the returned C<$tuple> is always	267	tuple. Croaks on any decoding error, so the returned C<$tuple> is always
261	valid.	268	valid.
262		269
…		…
275		282
276	Example: as above, but use the provided SNMP profile.	283	Example: as above, but use the provided SNMP profile.
277		284
278	$tuple = ber_encode $data, $Convert::BER::XS::SNMP_PROFILE;	285	$tuple = ber_encode $data, $Convert::BER::XS::SNMP_PROFILE;
279		286
		287	=item ($tuple, $bytes) = ber_decode_prefix $bindata[, $profile]
		288
		289	Works like C<ber_decode>, except it doesn't croak when there is data after
		290	the BER data, but instead returns the decoded value and the number of
		291	bytes it decoded.
		292
		293	This is useful when you have BER data at the start of a buffer and other
		294	data after, and you need to find the length.
		295
		296	Also, since BER is self-delimited, this can be used to decode multiple BER
		297	values joined together.
		298
280	=item $bindata = ber_encode $tuple[, $profile]	299	=item $bindata = ber_encode $tuple[, $profile]
281		300
282	Encodes the BER tuple into a BER/DER data structure. AS with	301	Encodes the BER tuple into a BER/DER data structure. As with
283	Cyber_decode>, an optional profile can be given.	302	Cyber_decode>, an optional profile can be given.
284		303
285	The encoded data should be both BER and DER ("shortest form") compliant	304	The encoded data should be both BER and DER ("shortest form") compliant
286	unless the input says otherwise (e.g. it uses constructed strings).	305	unless the input says otherwise (e.g. it uses constructed strings).
287		306
…		…
390	use common::sense;	409	use common::sense;
391		410
392	use XSLoader ();	411	use XSLoader ();
393	use Exporter qw(import);	412	use Exporter qw(import);
394		413
		414	use Carp ();
		415
395	our $VERSION;	416	our $VERSION;
396		417
397	BEGIN {	418	BEGIN {
398	$VERSION = 0.9;	419	$VERSION = 1.2;
399	XSLoader::load __PACKAGE__, $VERSION;	420	XSLoader::load __PACKAGE__, $VERSION;
400	}	421	}
401		422
402	our %EXPORT_TAGS = (	423	our %EXPORT_TAGS = (
403	const_index => [qw(	424	const_index => [qw(
404	BER_CLASS BER_TAG BER_FLAGS BER_DATA	425	BER_CLASS BER_TAG BER_FLAGS BER_DATA
405	)],	426	)],
		427	const_asn_class => [qw(
		428	ASN_UNIVERSAL ASN_APPLICATION ASN_CONTEXT ASN_PRIVATE
		429	)],
406	const_asn => [qw(	430	const_asn_tag => [qw(
407	ASN_BOOLEAN ASN_INTEGER ASN_BIT_STRING ASN_OCTET_STRING ASN_NULL ASN_OBJECT_IDENTIFIER	431	ASN_BOOLEAN ASN_INTEGER ASN_BIT_STRING ASN_OCTET_STRING ASN_NULL ASN_OID ASN_OBJECT_IDENTIFIER
408	ASN_OBJECT_DESCRIPTOR ASN_OID ASN_EXTERNAL ASN_REAL ASN_SEQUENCE ASN_ENUMERATED	432	ASN_OBJECT_DESCRIPTOR ASN_EXTERNAL ASN_REAL ASN_SEQUENCE ASN_ENUMERATED
409	ASN_EMBEDDED_PDV ASN_UTF8_STRING ASN_RELATIVE_OID ASN_SET ASN_NUMERIC_STRING	433	ASN_EMBEDDED_PDV ASN_UTF8_STRING ASN_RELATIVE_OID ASN_SET ASN_NUMERIC_STRING
410	ASN_PRINTABLE_STRING ASN_TELETEX_STRING ASN_T61_STRING ASN_VIDEOTEX_STRING ASN_IA5_STRING	434	ASN_PRINTABLE_STRING ASN_TELETEX_STRING ASN_T61_STRING ASN_VIDEOTEX_STRING ASN_IA5_STRING
411	ASN_ASCII_STRING ASN_UTC_TIME ASN_GENERALIZED_TIME ASN_GRAPHIC_STRING ASN_VISIBLE_STRING	435	ASN_ASCII_STRING ASN_UTC_TIME ASN_GENERALIZED_TIME ASN_GRAPHIC_STRING ASN_VISIBLE_STRING
412	ASN_ISO646_STRING ASN_GENERAL_STRING ASN_UNIVERSAL_STRING ASN_CHARACTER_STRING ASN_BMP_STRING	436	ASN_ISO646_STRING ASN_GENERAL_STRING ASN_UNIVERSAL_STRING ASN_CHARACTER_STRING ASN_BMP_STRING
413
414	ASN_UNIVERSAL ASN_APPLICATION ASN_CONTEXT ASN_PRIVATE
415	)],	437	)],
416	const_ber_type => [qw(	438	const_ber_type => [qw(
417	BER_TYPE_BYTES BER_TYPE_UTF8 BER_TYPE_UCS2 BER_TYPE_UCS4 BER_TYPE_INT	439	BER_TYPE_BYTES BER_TYPE_UTF8 BER_TYPE_UCS2 BER_TYPE_UCS4 BER_TYPE_INT
418	BER_TYPE_OID BER_TYPE_RELOID BER_TYPE_NULL BER_TYPE_BOOL BER_TYPE_REAL	440	BER_TYPE_OID BER_TYPE_RELOID BER_TYPE_NULL BER_TYPE_BOOL BER_TYPE_REAL
419	BER_TYPE_IPADDRESS BER_TYPE_CROAK	441	BER_TYPE_IPADDRESS BER_TYPE_CROAK
420	)],	442	)],
421	const_snmp => [qw(	443	const_snmp => [qw(
422	SNMP_IPADDRESS SNMP_COUNTER32 SNMP_UNSIGNED32 SNMP_TIMETICKS SNMP_OPAQUE SNMP_COUNTER64	444	SNMP_IPADDRESS SNMP_COUNTER32 SNMP_GAUGE32 SNMP_UNSIGNED32
		445	SNMP_TIMETICKS SNMP_OPAQUE SNMP_COUNTER64
423	)],	446	)],
424	decode => [qw(	447	decode => [qw(
425	ber_decode	448	ber_decode ber_decode_prefix
426	ber_is ber_is_seq ber_is_int ber_is_oid	449	ber_is ber_is_seq ber_is_int ber_is_oid
		450	ber_dump
427	)],	451	)],
428	encode => [qw(	452	encode => [qw(
429	ber_encode	453	ber_encode
430	ber_int	454	ber_int
431	)],	455	)],
432	);	456	);
433		457
434	our @EXPORT_OK = map @$_, values %EXPORT_TAGS;	458	our @EXPORT_OK = map @$_, values %EXPORT_TAGS;
435		459
436	$EXPORT_TAGS{all} = \@EXPORT_OK;	460	$EXPORT_TAGS{all} = \@EXPORT_OK;
		461	$EXPORT_TAGS{const_asn} = [map @{ $EXPORT_TAGS{$_} }, qw(const_asn_class const_asn_tag)];
437	$EXPORT_TAGS{const} = [map @{ $EXPORT_TAGS{$_} }, qw(const_index const_asn)];	462	$EXPORT_TAGS{const} = [map @{ $EXPORT_TAGS{$_} }, qw(const_index const_asn)];
		463
		464	our $DEFAULT_PROFILE = new Convert::BER::XS::Profile;
		465
		466	$DEFAULT_PROFILE->_set_default;
		467
		468	# additional SNMP application types
		469	our $SNMP_PROFILE = new Convert::BER::XS::Profile;
		470
		471	$SNMP_PROFILE->set (ASN_APPLICATION, SNMP_IPADDRESS , BER_TYPE_IPADDRESS);
		472	$SNMP_PROFILE->set (ASN_APPLICATION, SNMP_COUNTER32 , BER_TYPE_INT);
		473	$SNMP_PROFILE->set (ASN_APPLICATION, SNMP_UNSIGNED32, BER_TYPE_INT);
		474	$SNMP_PROFILE->set (ASN_APPLICATION, SNMP_TIMETICKS , BER_TYPE_INT);
		475
		476	# decodes REAL values according to ECMA-63
		477	# this is pretty strict, except it doesn't catch -0.
		478	# I don't have access to ISO 6093 (or BS 6727, or ANSI X.3-42)), so this is all guesswork.
		479	sub _decode_real_decimal {
		480	my ($format, $val) = @_;
		481
		482	$val =~ y/,/./; # probably not in ISO-6093
		483
		484	if ($format == 1) {
		485	$val =~ /^ \ * [+-]? [0-9]+ \z/x
		486	or Carp::croak "BER_TYPE_REAL NR1 value not in NR1 format ($val) (X.690 8.5.8)";
		487	} elsif ($format == 2) {
		488	$val =~ /^ \ * [+-]? (?: [0-9]+\.[0-9]* \| [0-9]*\.[0-9]+ ) \z/x
		489	or Carp::croak "BER_TYPE_REAL NR2 value not in NR2 format ($val) (X.690 8.5.8)";
		490	} elsif ($format == 3) {
		491	$val =~ /^ \ * [+-] (?: [0-9]+\.[0-9]* \| [0-9]*\.[0-9]+ ) [eE] [+-]? [0-9]+ \z/x
		492	or Carp::croak "BER_TYPE_REAL NR3 value not in NR3 format ($val) (X.690 8.5.8)";
		493	} else {
		494	Carp::croak "BER_TYPE_REAL illegal decimal numerical representation format $format";
		495	}
		496
		497	$val
		498	}
		499
		500	# this is a mess, but perl's support for floating point formatting is nearly nonexistant
		501	sub _encode_real_decimal {
		502	my ($val, $nvdig) = @_;
		503
		504	$val = sprintf "%.*G", $nvdig + 1, $val;
		505
		506	if ($val =~ /E/) {
		507	$val =~ s/E(?=[^+-])/E+/;
		508	$val =~ s/E/.E/ if $val !~ /\./;
		509	$val =~ s/^/+/ unless $val =~ /^-/;
		510
		511	return "\x03$val" # NR3
		512	}
		513
		514	$val =~ /\./
		515	? "\x02$val" # NR2
		516	: "\x01$val" # NR1
		517	}
		518
		519	=head2 DEBUGGING
		520
		521	To aid debugging, you can call the C<ber_dump> function to print a "nice"
		522	representation to STDOUT.
		523
		524	=over
		525
		526	=item ber_dump $tuple[, $profile[, $prefix]]
		527
		528	In addition to specifying the BER C<$tuple> to dump, you can also specify
		529	a C<$profile> and a C<$prefix> string that is printed in front of each line.
		530
		531	If C<$profile> is C<$Convert::BER::XS::SNMP_PROFILE>, then C<ber_dump>
		532	will try to improve its output for SNMP data.
		533
		534	The output usually contains three columns, the "human readable" tag, the
		535	BER type used to decode it, and the data value.
		536
		537	This function is somewhat slow and uses a number of heuristics and tricks,
		538	so it really is only suitable for debug prints.
		539
		540	Example output:
		541
		542	SEQUENCE
		543	\| OCTET_STRING bytes 800063784300454045045400000001
		544	\| OCTET_STRING bytes
		545	\| CONTEXT (7) CONSTRUCTED
		546	\| \| INTEGER int 1058588941
		547	\| \| INTEGER int 0
		548	\| \| INTEGER int 0
		549	\| \| SEQUENCE
		550	\| \| \| SEQUENCE
		551	\| \| \| \| OID oid 1.3.6.1.2.1.1.3.0
		552	\| \| \| \| TIMETICKS int 638085796
		553
		554	=back
		555
		556	=cut
		557
		558	# reverse enum, very slow and ugly hack
		559	sub _re {
		560	my ($export_tag, $value) = @_;
		561
		562	for my $symbol (@{ $EXPORT_TAGS{$export_tag} }) {
		563	$value == eval $symbol
		564	and return $symbol;
		565	}
		566
		567	"($value)"
		568	}
		569
		570	$SNMP_PROFILE->set (ASN_APPLICATION, SNMP_COUNTER64 , BER_TYPE_INT);
		571
		572	sub _ber_dump {
		573	my ($ber, $profile, $indent) = @_;
		574
		575	if (my $seq = ber_is_seq $ber) {
		576	printf "%sSEQUENCE\n", $indent;
		577	&_ber_dump ($_, $profile, "$indent\| ")
		578	for @$seq;
		579	} else {
		580	my $asn = $ber->[BER_CLASS] == ASN_UNIVERSAL;
		581
		582	my $class = _re const_asn_class => $ber->[BER_CLASS];
		583	my $tag = $asn ? _re const_asn_tag => $ber->[BER_TAG] : $ber->[BER_TAG];
		584	my $type = _re const_ber_type => $profile->get ($ber->[BER_CLASS], $ber->[BER_TAG]);
		585	my $data = $ber->[BER_DATA];
		586
		587	if ($profile == $SNMP_PROFILE and $ber->[BER_CLASS] == ASN_APPLICATION) {
		588	$tag = _re const_snmp => $ber->[BER_TAG];
		589	} elsif (!$asn) {
		590	$tag = "$class ($tag)";
		591	}
		592
		593	$class =~ s/^ASN_//;
		594	$tag =~ s/^(ASN_\|SNMP_)//;
		595	$type =~ s/^BER_TYPE_//;
		596
		597	if ($ber->[BER_FLAGS]) {
		598	printf "$indent%-16.16s\n", $tag;
		599	&_ber_dump ($_, $profile, "$indent\| ")
		600	for @$data;
		601	} else {
		602	if ($data =~ y/\x20-\x7e//c / (length $data \|\| 1) > 0.2 or $data =~ /\x00./s) {
		603	# assume binary
		604	$data = unpack "H*", $data;
		605	} else {
		606	$data =~ s/[^\x20-\x7e]/./g;
		607	$data = "\"$data\"" if $tag =~ /string/i \|\| !length $data;
		608	}
		609
		610	substr $data, 40, 1e9, "..." if 40 < length $data;
		611
		612	printf "$indent%-16.16s %-6.6s %s\n", $tag, lc $type, $data;
		613	}
		614	}
		615	}
		616
		617	sub ber_dump($;$$) {
		618	_ber_dump $_[0], $_[1] \|\| $DEFAULT_PROFILE, $_[2];
		619	}
438		620
439	=head1 PROFILES	621	=head1 PROFILES
440		622
441	While any BER data can be correctly encoded and decoded out of the box, it	623	While any BER data can be correctly encoded and decoded out of the box, it
442	can be inconvenient to have to manually decode some values into a "better"	624	can be inconvenient to have to manually decode some values into a "better"
…		…
503		685
504	Returns the BER type mapped to the given C<$class>/C<$tag> combination.	686	Returns the BER type mapped to the given C<$class>/C<$tag> combination.
505		687
506	=back	688	=back
507		689
508	=head2 BER TYPES	690	=head2 BER Types
509		691
510	This lists the predefined BER types - you can map any C<CLASS>/C<TAG>	692	This lists the predefined BER types. BER types are formatters used
511	combination to any C<BER_TYPE_*>.	693	internally to format and encode BER values. You can assign any C<BER_TYPE>
		694	to any C<CLASS>/C<TAG> combination tgo change how that tag is decoded or
		695	encoded.
512		696
513	=over	697	=over
514		698
515	=item C<BER_TYPE_BYTES>	699	=item C<BER_TYPE_BYTES>
516		700
…		…
593		777
594	$SNMP_PROFILE->set (ASN_APPLICATION, SNMP_IPADDRESS , BER_TYPE_IPADDRESS);	778	$SNMP_PROFILE->set (ASN_APPLICATION, SNMP_IPADDRESS , BER_TYPE_IPADDRESS);
595	$SNMP_PROFILE->set (ASN_APPLICATION, SNMP_COUNTER32 , BER_TYPE_INT);	779	$SNMP_PROFILE->set (ASN_APPLICATION, SNMP_COUNTER32 , BER_TYPE_INT);
596	$SNMP_PROFILE->set (ASN_APPLICATION, SNMP_UNSIGNED32, BER_TYPE_INT);	780	$SNMP_PROFILE->set (ASN_APPLICATION, SNMP_UNSIGNED32, BER_TYPE_INT);
597	$SNMP_PROFILE->set (ASN_APPLICATION, SNMP_TIMETICKS , BER_TYPE_INT);	781	$SNMP_PROFILE->set (ASN_APPLICATION, SNMP_TIMETICKS , BER_TYPE_INT);
598	$SNMP_PROFILE->set (ASN_APPLICATION, SNMP_OPAQUE , BER_TYPE_IPADDRESS);	782	$SNMP_PROFILE->set (ASN_APPLICATION, SNMP_OPAQUE , BER_TYPE_BYTES);
599	$SNMP_PROFILE->set (ASN_APPLICATION, SNMP_COUNTER64 , BER_TYPE_INT);	783	$SNMP_PROFILE->set (ASN_APPLICATION, SNMP_COUNTER64 , BER_TYPE_INT);
600		784
601	=cut
602
603	our $DEFAULT_PROFILE = new Convert::BER::XS::Profile;
604
605	$DEFAULT_PROFILE->_set_default;
606
607	# additional SNMP application types
608	our $SNMP_PROFILE = new Convert::BER::XS::Profile;
609
610	$SNMP_PROFILE->set (ASN_APPLICATION, SNMP_IPADDRESS , BER_TYPE_IPADDRESS);
611	$SNMP_PROFILE->set (ASN_APPLICATION, SNMP_COUNTER32 , BER_TYPE_INT);
612	$SNMP_PROFILE->set (ASN_APPLICATION, SNMP_UNSIGNED32, BER_TYPE_INT);
613	$SNMP_PROFILE->set (ASN_APPLICATION, SNMP_TIMETICKS , BER_TYPE_INT);
614	$SNMP_PROFILE->set (ASN_APPLICATION, SNMP_OPAQUE , BER_TYPE_IPADDRESS);
615	$SNMP_PROFILE->set (ASN_APPLICATION, SNMP_COUNTER64 , BER_TYPE_INT);
616
617	1;
618
619	=head2 LIMITATIONS/NOTES	785	=head2 LIMITATIONS/NOTES
620		786
621	This module can only en-/decode 64 bit signed and unsigned integers, and	787	This module can only en-/decode 64 bit signed and unsigned
622	only when your perl supports those.	788	integers/tags/lengths, and only when your perl supports those. So no UUID
		789	OIDs for now (unless you map the C<OBJECT IDENTIFIER> tag to something
		790	other than C<BER_TYPE_OID>).
623		791
624	This module does not generally care about ranges, i.e. it will happily	792	This module does not generally care about ranges, i.e. it will happily
625	de-/encode 64 bit integers into an C<ASN_INTEGER> value, or a negative	793	de-/encode 64 bit integers into an C<SNMP_UNSIGNED32> value, or a negative
626	number into an C<SNMP_COUNTER64>.	794	number into an C<SNMP_COUNTER64>.
627		795
628	OBJECT IDENTIFIEERs cannot have unlimited length, although the limit is	796	OBJECT IDENTIFIEERs cannot have unlimited length, although the limit is
629	much larger than e.g. the one imposed by SNMP or other protocols,a nd is	797	much larger than e.g. the one imposed by SNMP or other protocols, and is
630	about 4kB.	798	about 4kB.
631
632	Indefinite length encoding is not supported.
633		799
634	Constructed strings are decoded just fine, but there should be a way to	800	Constructed strings are decoded just fine, but there should be a way to
635	join them for convenience.	801	join them for convenience.
636		802
637	REAL values are not supported and will currently croak.	803	REAL values will always be encoded in decimal form and ssometimes is
638		804	forced into a perl "NV" type, potentially losing precision.
639	This module has undergone little to no testing so far.
640		805
641	=head2 ITHREADS SUPPORT	806	=head2 ITHREADS SUPPORT
642		807
643	This module is unlikely to work when the (officially discouraged) ithreads	808	This module is unlikely to work in any other than the loading thread when
644	are in use.	809	the (officially discouraged) ithreads are in use.
645		810
646	=head1 AUTHOR	811	=head1 AUTHOR
647		812
648	Marc Lehmann <schmorp@schmorp.de>	813	Marc Lehmann <schmorp@schmorp.de>
649	http://software.schmorp.de/pkg/Convert-BER-XS	814	http://software.schmorp.de/pkg/Convert-BER-XS
650		815
651	=cut	816	=cut
652		817
		818	1;
		819

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Comparing Convert-BER-XS/XS.pm (file contents): Revision 1.31 by root, Sat Apr 20 15:49:04 2019 UTC vs. Revision 1.58 by root, Sat Apr 27 14:54:40 2019 UTC

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Comparing Convert-BER-XS/XS.pm (file contents):
Revision 1.31 by root, Sat Apr 20 15:49:04 2019 UTC vs.
Revision 1.58 by root, Sat Apr 27 14:54:40 2019 UTC