Age | Commit message (Collapse) | Author |
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If the encoding is empty (i.e. if a top-level type is single-valued
and therefore not encoding), the result should be a single zero
byte.
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An ENUMERATED with as single value is not encoded. The decoder
incorrectly assumed that it was encoded in one bit.
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Some tests are are only run with BER backend. Unless there is a
special reason that the PER and UPER backends will not work, we
should run all tests with all backends to get the best possible
code coverage.
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Also teach otp_SUITE:call_to_size/1 that calls to size/1 is no
longer allowed within the asn1 application.
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It is recommended to use byte_size/1 or tuple_size/1 instead of
size/1.
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The ASN.1 compiler would generate an Erlang module with
incorrect syntax for:
T DEFINITIONS AUTOMATIC TAGS ::=
BEGIN
Empty ::= SET {
}
S ::= SEQUENCE {
e Empty DEFAULT {}
}
END
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Commit f16f43446a04c459486356c0b4ad517cc9201895 broke compilation
of InformationFramework for per and uper.
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Was broken in some backends in R15. Make sure that we will notice
if it breaks again.
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On Windows, there is a limit to the number of characters in a
filename. Therefore, we don't want unnecessarily use any longer
path than necessary for case-specific directory. Since all test
cases that put anything into priv_dir is asn1_SUITE, it is not
necessary to include "asn1_SUITE" as part of the case-specific
directory.
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All generated and compiled code are now put into separate sub
directories below priv_dir, so there is no point in adding
priv_dir to the code path.
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* maint:
Prepare release
Don't run testX420/1 on old slow Sparc systems
testX420: Pass Options to the ASN.1 compiler
asn1_erl_nif: Correct broken length encoding
asn1_SUITE: Mend broken test_modified_x420/1
Revert "Prepare release"
Conflicts:
lib/asn1/doc/src/notes.xml
lib/asn1/test/asn1_SUITE.erl
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* maint-r15:
Prepare release
Don't run testX420/1 on old slow Sparc systems
testX420: Pass Options to the ASN.1 compiler
asn1_erl_nif: Correct broken length encoding
asn1_SUITE: Mend broken test_modified_x420/1
Fix a bug for multiple extension addition groups
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* bjorn/asn1/open-type-error/OTP-10805:
asn1_erl_nif: Correct broken length encoding
asn1_SUITE: Mend broken test_modified_x420/1
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* bjorn/asn1/extension-addition-groups/OTP-10811:
Fix a bug for multiple extension addition groups
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One and a half hour is not enough for it to finish.
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When the caller passed the 'der' option, it was ignored.
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The ber_bin_v2 backend calls a NIF function to decode all tags
and lengths. Even open types that should not be decoded will also be
decoded, which makes it necessary to later re-encode the data using
a NIF function.
The NIF function incorrectly encoded lengths.
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The test_modified_x420/1 test case had several problems that
prevented it to detect the bugs it was supposed to find:
1) There was a 'catch' at the top-level so that it could never fail.
2) There was a call to the now non-existing ssl_base64 module.
3) It did not test all options for the BER backend.
While at it, also clean way the remaining ?line macros and some
out-commented code.
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* bjorn/asn1/further-cleanup/OTP-10588: (28 commits)
Don't export encode_disp/2 and decode_disp/2 in generated modules
Remove vestiges of support for the {TypeName,Value} notation
Simplify the functions for decoding lengths
per,uper: Optimize decoding of the remaining data types
per,uper: Optimize decoding of the remaining string types
Share all code for dec_gen_prim/3 between per/uper back-ends
per,uper: Optimize decoding of the string data types
testPrimStrings: Test some constraints
By default, encode BIT STRING to bitstrings
Teach encode functions to accept a bitstring term for a BIT STRING
Fix EXTERNAL 1990/1994 conversion information loss
uper: Look up some SizeConstraints at compile-time
Enumeration decoding: Don't emit a default clause if it cannot match
Slightly optimize per encoding of large INTEGERs with constraints
BER run-time: Refactor decoding of string data types
Refactor decoding of BIT STRINGs
Optimize encoding of ENUMERATED in per and uper
Remove the unused run-time modules
eldap: Remove calls to undocumented asn1rt* functions
BER: Correct bug in 'undec_rest'
...
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Those functions were exported for no good reason.
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Support in BER was removed in 3d1279f3cebfdd2483c3afea9f225613fe45cd00.
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Now that the decoding of all types are generated inline, we can
take out most of the code for decoding lengths.
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Add the option 'legacy_bit_string' to decode to the old list format.
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We do it in the simplest possible way by converting the bitstring
to a compact bitstring tuple.
The encoding of BIT STRINGs should be cleaned up and optimized.
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There are two different definitions of the EXTERNAL data type in ASN.1:
the original from 1990 and an updated from 1994. Both defintions
are encoded in the same way (in BER). There are still
systems in use that use the old definition of EXTERNAL, so the
asn1 application must still support both.
It has been decided that the asn1 application should handle both
the forms without any compiler options. Internally the asn1 application
uses the 1990 definition. The encode functions will accept both
definitions, but translate the 1994 format to the 1990 format
if needed. When decoding, it will decode to the 1990 definition format
first and then translate to the 1994 defintion format.
One problem with this approach is that the conversion to the 1994
format may not be loss-less (where the 1990 defintion had a CHOICE
between an OPEN TYPE, OCTET STRING, or BIT STRING, the 1994 definition
only supports an OCTET STRING), and therefore it might not be possible
to correctly re-encode the data in the 1990 format.
It seems that the only reliable way to handle that problem is to not
do the conversion to the 1994 format if the conversion is not
loss-less. (There is an attempt when translating to the 1990 format
to recover the CHOICE alternative based on the Erlang type of
the data value, but that is neither reliable nor future-proof.)
That is, when decoding an EXTERNAL value, the resulting
tuple could either conform to the 1990 or 1994 definition, and
applications must be prepared to handle that.
The mail conversation where this issue was first reported can be
found here:
http://erlang.org/pipermail/erlang-questions/2011-April/057697.html
Reported-by: Harald Welte <[email protected]>
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Dialyzer will warn for default clauses that cannot possible match.
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In the BER run-time code (asn1rtt_ber), there is a general function
for decoding a string:
decode_restricted_string(Tlv, Range, StringType, TagsIn)
But the StringType argument is not important. It is only used
internally in asn1rtt_ber to distinguish universal strings and BMP
strings from other strings. By slightly refactoring the string
decoding code, we can eliminate the StringType argument and a
subsequent run-time test on the string type. That will slightly reduce
code size, slightly increase speed, and eliminate Dialyzer warnings.
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Refactor decoding of BIT STRINGs so that the run-time code does
not spend testing conditions that are known already at compile-time
(which wastes time and produces unnecessary Dialyzer warnings).
There are three ways to decode BIT STRINGs:
1) To a list of bit names (and {bit,Position} for unnamed positions)
if the BIT STRING type has any bit names.
2a) To a list of ones and zeros if there are no named bits, and the
compact_bit_string option was NOT given.
2b) To a {Unused,Bin} tuple if there are no named bits compact_bit_string
option WAS given.
Structure the decoding functions in the same way.
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Always pre-encode the values for the enumeration. Clean up the
code and let the per and uper back-ends share the code.
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enif_make_new_binary() cannot return NULL, so while at it,
remove the check for return value of enif_make_new_binary()
being NULL.
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