tree 60f972c41dd67fb7a6f513e9f30f5419419a31b3
parent 28f2fcd08dd1b6172af0b6b6fcc14382e067508a
author Hanno Becker <hanno.becker@arm.com> 1549542763 +0000
committer Hanno Becker <hanno.becker@arm.com> 1551191889 +0000

Make use of macro and helper detecting whether CertRequest allowed

This commit simplifies the client-side code for outgoing CertificateVerify
messages, and server-side code for outgoing CertificateRequest messages and
incoming CertificateVerify messages, through the use of the macro

   `MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED`

indicating whether a ciphersuite allowing CertificateRequest messages
is enabled in the configuration, as well as the helper function

   `mbedtls_ssl_ciphersuite_cert_req_allowed()`

indicating whether a particular ciphersuite allows CertificateRequest
messages.

These were already used in the client-side code to simplify the
parsing functions for CertificateRequest messages.