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dirmngr: Add special treatment for the standard hkps pool to ntbtls.

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* 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>
This commit is contained in:
Werner Koch 2017-02-21 14:55:04 +01:00
parent d1625a9a82
commit 831d014550
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GPG key ID: E3FDFF218E45B72B
7 changed files with 67 additions and 27 deletions
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2
dirmngr/http.h
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@ -86,7 +86,7 @@ enum
HTTP_FLAG_IGNORE_CL = 32, /* Ignore content-length. */
HTTP_FLAG_IGNORE_IPv4 = 64, /* Do not use IPv4. */
HTTP_FLAG_IGNORE_IPv6 = 128, /* Do not use IPv6. */
HTTP_FLAG_TRUST_DEF = 256, /* Use the default CAs. */
HTTP_FLAG_TRUST_DEF = 256, /* Use the CAs configured for HKP. */
HTTP_FLAG_TRUST_SYS = 512, /* Also use the system defined CAs. */
HTTP_FLAG_NO_CRL = 1024 /* Do not consult CRLs for https. */
};