This commit moves all related mbedtls_oid_from_numeric_string unit tests
from test_suite_oid to test_suite_x509write.
Signed-off-by: Sam Berry <sam.berry@arm.com>
Some test cases are using encrypted key file, thus have
dependency on low-level block cipher modules (e.g. AES).
This commit adds unencrypted key file so that we could
get rid of those dependencies.
Signed-off-by: Pengyu Lv <pengyu.lv@arm.com>
Separate the fits-in-buffer check (*data_length <= data_size) from the
we-think-it's-a-sensible-size check (*data_length <=
MBEDTLS_X509_MAX_DN_NAME_SIZE).
This requires using an intermediate buffer for the DER data, since its
maximum sensible size has to be larger than the maximum sensible size for
the payload, due to the overhead of the ASN.1 tag+length.
Remove test cases focusing on the DER length since the implementation no
longer has a threshold for it.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Fix the expected output in some test cases.
Add a few more test cases to exercise both a payload length around 256 bytes
and a DER length around 256 bytes, since both are placed in a 256-byte
buffer (value of MBEDTLS_X509_MAX_DN_NAME_SIZE).
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Due to differing validations amongst X.509 library functions, there are
inputs that mbedtls_x509_string_to_names() accepts, but it produces output
that some library functions can't parse. Accept this for now. Do call the
functions, even when we don't care about their return code: we're ok with
returning errors, but not with e.g. a buffer overflow.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
In particular, "X509 String to Names: long hexstring (DER=258 bytes, too long)"
causes a buffer overflow in parse_attribute_value_der_encoded().
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
The test for outputing a hexstring representation is actually
testing dn_gets, and is tested in test_suite_x509parse.
Signed-off-by: Agathiyan Bragadeesh <agathiyan.bragadeesh2@arm.com>
Converts none ascii to escaped hexpairs in mbedtls_x509_dn_gets and
interprets hexpairs in mbedtls_x509_string_to_names.
Signed-off-by: Agathiyan Bragadeesh <agathiyan.bragadeesh2@arm.com>
This escapes special characters according to RFC 4514 in
mbedtls_x509_dn_gets and de-escapes in mbedtls_x509_string_to_names.
This commit does not handle hexpairs.
Signed-off-by: Agathiyan Bragadeesh <agathiyan.bragadeesh2@arm.com>
Test against a string with no '=' or ',' in it, which previously caused
mbedtls_x509_string_to_names() to return 0.
Signed-off-by: David Horstmann <david.horstmann@arm.com>
Treat backslash as a universal escape character: "\n" is a newline,
backslash escapes any non-alphanumeric character.
This affects some test cases that had "\," standing for backslash-comma.
With the new uniform treatment of backslashes, this needs to be "\\,".
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
