dirmngr: Add special treatment for the standard hkps pool to ntbtls.
* dirmngr/validate.h (VALIDATE_FLAG_SYSTRUST): Remove (VALIDATE_FLAG_EXTRATRUST): Remove (VALIDATE_FLAG_TRUST_SYSTEM): New. (VALIDATE_FLAG_TRUST_CONFIG): New. (VALIDATE_FLAG_TRUST_HKP): New. (VALIDATE_FLAG_TRUST_HKPSPOOL): New. (VALIDATE_FLAG_MASK_TRUST): New. * dirmngr/validate.c (check_header_constants): New. (validate_cert_chain): Call new function. Simplify call to is_trusted_cert. * dirmngr/crlcache.c (crl_parse_insert): Pass VALIDATE_FLAG_TRUST_CONFIG to validate_cert_chain * dirmngr/server.c (cmd_validate): Use VALDIATE_FLAG_TRUST_SYSTEM and VALIDATE_FLAG_TRUST_CONFIG. * dirmngr/http-ntbtls.c (gnupg_http_tls_verify_cb): Check provided TLS context. Set trustclass flags using the new VALIDATE_FLAG_TRUST values. * dirmngr/certcache.c (cert_cache_init): Load the standard pool certificate prior to the --hkp-cacerts.
Note that this changes the way the standard cert is used: We require
that it is installed at /usr/share/gnupg and we do not allow to change
it. If this is not desired, the the standard cert can be removed or
replaced by a newer one.
- Signed-off-by: Werner Koch <wk@gnupg.org>