Reorder fields mbedtls_ssl_handshake_params in order to save code on Arm
Thumb builds. The general idea is to put often-used fields in the direct
access window of 128 elements from the beginning of the structure.
The reordering is a human selection based on a report of field offset and
use counts, and informed by measuring the code size with various
arrangements. Some notes:
* This is the same reordering as the corresponding commit in #5189 for 2.2x.
* I moved most byte-sized fields at the beginning where they're sure to be
in the direct access window.
* I moved buffering earlier because it can be around the threshold depending
on the configuration, and it's accessed in a lot of places.
* I moved several fields, including update_checksum and friends, early so
that they're guaranteed to be in the early access window.
Results (arm-none-eabi-gcc 7.3.1, build_arm_none_eabi_gcc_m0plus build):
library/ssl_cli.o: 19763 -> 19687 (diff: 76)
library/ssl_msg.o: 24874 -> 24834 (diff: 40)
library/ssl_srv.o: 20754 -> 20562 (diff: 192)
library/ssl_tls.o: 21003 -> 20907 (diff: 96)
library/ssl_tls13_client.o: 7284 -> 7272 (diff: 12)
library/ssl_tls13_generic.o: 4749 -> 4721 (diff: 28)
library/ssl_tls13_keys.o: 5133 -> 5077 (diff: 56)
Results (same architecture, config-suite-b.h + MBEDTLS_ECDH_LEGACY_CONTEXT +
MBEDTLS_ECP_RESTARTABLE):
library/ssl_cli.o: 3000 -> 2936 (diff: 64)
library/ssl_msg.o: 3084 -> 3080 (diff: 4)
library/ssl_srv.o: 3428 -> 3400 (diff: 28)
library/ssl_tls.o: 6754 -> 6730 (diff: 24)
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Replace bitfields mbedtls_ssl_handshake_params by bytes. This saves some
code size, and since the bitfields weren't group, this doesn't increase the
RAM usage.
Replace several ints that only store values in the range 0..255 by uint8_t.
This can increase or decrease the code size depending on the architecture
and on how the field is used. I chose changes that save code size on Arm
Thumb builds and will save more after field reordering.
Leave the bitfields in struct mbedtls_ssl_hs_buffer alone: replacing them by
uint8_t slightly increases the code size.
Results (arm-none-eabi-gcc 7.3.1, build_arm_none_eabi_gcc_m0plus build):
library/ssl_cli.o: 19759 -> 19763 (diff: -4)
library/ssl_srv.o: 20790 -> 20754 (diff: 36)
library/ssl_tls13_keys.o: 5153 -> 5133 (diff: 20)
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Move fields around to have fewer accesses outside the 128-element Thumb
direct access window.
Make the same change as in 2.27+, for the same small benefit.
Results (arm-none-eabi-gcc 7.3.1, build_arm_none_eabi_gcc_m0plus build):
library/psa_crypto.o: 16434 -> 16414 (diff: 20)
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Remove support signature PKCS1 v1.5 in CertificateVerify.
Remove useless server states in test script
Signed-off-by: XiaokangQian <xiaokang.qian@arm.com>
Change client test code to support rsa pss signatures
Add test cases for rsa pss signature in ssl-opt.sh
Signed-off-by: XiaokangQian <xiaokang.qian@arm.com>
psa_key_derivation_output_key: prioritize BAD_STATE over NOT_PERMITTED
If psa_key_derivation_output_key() is called on an operation which hasn't been
set up or which has been aborted, return PSA_ERROR_BAD_STATE. Only return
PSA_ERROR_NOT_PERMITTED if the operation state is ok for
psa_key_derivation_input_bytes() or psa_key_derivation_output_bytes() but not
ok to output a key.
Ideally psa_key_derivation_output_key() would return PSA_ERROR_NOT_PERMITTED
only when psa_key_derivation_output_bytes() is possible, but this is clumsier
to implement.
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
Remove client certificate verify in tests.
Change the layout of structure to fix abi_api check issues.
Add comments of Finished.
Align with the coding styles.
Signed-off-by: XiaokangQian <xiaokang.qian@arm.com>
This is a workaround for an issue with mkstemp() in older MinGW releases that
causes simultaneous creation of .a files in the same directory to fail.
Fixes#5146
Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
Change debug messag for server finished.
Change name of generate_application_keys.
Remove the client vertificate tests from ssl-opt.sh.
Add test strings for server finished in ssl-opt.sh.
Signed-off-by: XiaokangQian <xiaokang.qian@arm.com>
Move set_state function into client
Add back export_key callback function in generate
application keys
Signed-off-by: XiaokangQian <xiaokang.qian@arm.com>
Fix the variable not inialized issue, remove the client
certificate related code, remove early data related code.
Signed-off-by: XiaokangQian <xiaokang.qian@arm.com>
The current definition of PSA_ALG_IS_HASH_AND_SIGN includes
PSA_ALG_RSA_PKCS1V15_SIGN_RAW and PSA_ALG_ECDSA_ANY, which don't strictly
follow the hash-and-sign paradigm: the algorithm does not encode a hash
algorithm that is applied prior to the signature step. The definition in
fact encompasses what can be used with psa_sign_hash/psa_verify_hash, so
it's the correct definition for PSA_ALG_IS_SIGN_HASH. Therefore this commit
moves definition of PSA_ALG_IS_HASH_AND_SIGN to PSA_ALG_IS_SIGN_HASH, and
replace the definition of PSA_ALG_IS_HASH_AND_SIGN by a correct one (based
on PSA_ALG_IS_SIGN_HASH, excluding the algorithms where the pre-signature
step isn't to apply the hash encoded in the algorithm).
In the definition of PSA_ALG_SIGN_GET_HASH, keep the condition for a nonzero
output to be PSA_ALG_IS_HASH_AND_SIGN.
Everywhere else in the code base (definition of PSA_ALG_IS_SIGN_MESSAGE, and
every use of PSA_ALG_IS_HASH_AND_SIGN outside of crypto_values.h), we meant
PSA_ALG_IS_SIGN_HASH where we wrote PSA_ALG_IS_HASH_AND_SIGN, so do a
global replacement.
```
git grep -l IS_HASH_AND_SIGN ':!include/psa/crypto_values.h' | xargs perl -i -pe 's/ALG_IS_HASH_AND_SIGN/ALG_IS_SIGN_HASH/g'
```
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
The makefile build specifies -L. -lmbedx509 -lmbedcrypto flags first,
and only then object files referencing symbols from those libraries.
In this order the linker will not add the linked libraries to the
DT_NEEDED section because they are not referenced yet (at least that
happens for me on ubuntu 20.04 with the default gnu compiler tools).
By first specifying the object files and then the linked libraries, we
do end up with libmbedx509 and libmbedcrypto in the DT_NEEDED sections.
This way running dlopen(...) on libmedtls.so just works.
Note that the CMake build does this by default.
Signed-off-by: Harmen Stoppels <harmenstoppels@gmail.com>
The refactoring is needed for the group api to work
properly. Code is modified to use mbedtls_get_supported_groups
instead of direct access so that both deprecated and new api
are useable.
Signed-off-by: Brett Warren <brett.warren@arm.com>
