* common/tlv.h (TLV_PARSER_FLAG_T5793): New.
(tlv_parser_new): New macro. Rename function with an underscore.
(tlv_next_with_flag): New.
* common/tlv-parser.c (struct tlv_parser_s): Remove const from buffer.
Add fields crammed, lasttlv, and origoff. Remove bufferlist ands ist
definition.
(dump_to_file): New but disabled debug helper.
(parse_tag): Print more info on error.
(_tlv_parser_new): Add args lasttlv and LNO. Take a copy of the data.
(_tlv_parser_release): Free the copy of the buffer and return the
recorded TLV object from tlv_parser_new.
(_tlv_peek, tlv_parser_peek, _tlv_parser_peek_null): Remove.
(_tlv_push): Record crammed length.
(_tlv_pop): Restore crammed length.
(_tlv_parser_next): Add arg flags. More debug output. Handle cramming
here. Take care of cramming here.
(tlv_expect_object): Simplify to adjust for changes in _tlv_parser_next.
(tlv_expect_octet_string): Remove arg encapsulates. Adjust for
changes in _tlv_parser_next. Change all allers.
(tlv_expect_null): New.
(cram_octet_string): Rewrite.
(need_octet_string_cramming): Remove.
* sm/minip12.c (dump_to_file): New. Enablein debug mode and if a
envvar ist set. Replace all explict but disabled dumping to call this
function.
(parse_bag_encrypted_data): Replace tlv_peek_null and a peeking for an
optional SET by non-peeking code.
(parse_cert_bag): Ditto.
(parse_shrouded_key_bag): Replace tlv_peek_null by non-peeking code.
(parse_bag_encrypted_data): Use the new TLV_PARSER_FLAG_T5793 to
enable the Mozilla workaround.
(parse_bag_encrypted_data): Replace the 'renewed_tlv' code by the new
tlv_parser_release semantics.
(parse_shrouded_key_bag): Ditto.
(parse_shrouded_key_bag): Create a new context instead of using the
former encapsulated mechanism for tlv_expect_octet_string.
(parse_bag_data): Ditto.
(p12_parse): Ditto.
--
GnuPG-bug-id: 7213
Fixing this took way too long; I should have earlier explained the
code to a co-hacker to find the problem myself in my code by this.
Backported-from-master: 690fd61a0cf2b4b51ee64811656692eb644d2918
* sm/minip12.c: Factor parsing code out to ...
* common/tlv-parser.c: new. Extend function names and provide a few
extra functions.
* common/Makefile.am (common_sources): Add new file.
* sm/minip12.c: Adjust to use the new parser API.
* common/tlv-builder.c: New.
* common/tlv.c: Remove stuff only used by GnuPG 1.
(put_tlv_to_membuf, get_tlv_length): Move to ...
* common/tlv-builder.c: here.
* common/tlv.h (tlv_builder_t): New.
--
Such code should actually go into libksba and we will eventually do
that. However, for now it is easier to keep it here.
Signed-off-by: Werner Koch <wk@gnupg.org>
We better do this once and for all instead of cluttering all future
commits with diffs of trailing white spaces. In the majority of cases
blank or single lines are affected and thus this change won't disturb
a git blame too much. For future commits the pre-commit scripts
checks that this won't happen again.
