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dirmngr: Support new gpgNtds parameter in LDAP keyserver URLs.

Browse source 
* dirmngr/ldap-parse-uri.c (ldap_parse_uri): Support a new gpgNtds
extension.
* dirmngr/ks-engine-ldap.c (my_ldap_connect): Do ldap_init always with
hostname - which is NULL and thus the same if not given.  Fix minor
error in error code handling.
--

Note that "gpgNtds" is per RFC-4512 case insensitive and has not yet
been officially regisetered.  Thus for correctness the OID can be
used:

  1.3.6.1.4.1.11591.2.5          LDAP URL extensions
  1.3.6.1.4.1.11591.2.5.1          gpgNtds=1 (auth. with current user)

Note that the value must be 1; all other values won't enable AD
authentication and are resevered for future use.

This has been cherry-picked from the 2.2 branch,
commit 55f46b33df

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2021-02-17 17:31:36 +01:00
parent 3fa1fa747b
commit ab7dc4b524
No known key found for this signature in database
GPG key ID: E3FDFF218E45B72B
5 changed files with 40 additions and 22 deletions
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19
dirmngr/ks-engine-ldap.c
View file

@ -519,18 +519,12 @@ my_ldap_connect (parsed_uri_t uri, LDAP **ldap_connp,
#endif
}
if (uri->ad_current)
ldap_conn = ldap_init (NULL, uri->port);
else
ldap_conn = ldap_init (uri->host, uri->port);
ldap_conn = ldap_init (uri->host, uri->port);
if (!ldap_conn)
{
err = gpg_err_code_from_syserror ();
if (uri->ad_current)
log_error ("error initializing LDAP for current user\n");
else
log_error ("error initializing LDAP for (%s://%s:%d)\n",
uri->scheme, uri->host, uri->port);
log_error ("error initializing LDAP for (%s://%s:%d)\n",
uri->scheme, uri->host, uri->port);
goto out;
}
@ -611,15 +605,16 @@ my_ldap_connect (parsed_uri_t uri, LDAP **ldap_connp,
npth_unprotect ();
err = ldap_bind_s (ldap_conn, NULL, NULL, LDAP_AUTH_NEGOTIATE);
npth_protect ();
#else
err = gpg_error (GPG_ERR_NOT_SUPPORTED);
#endif
if (err != LDAP_SUCCESS)
{
log_error ("error binding to LDAP via AD: %s\n",
ldap_err2string (err));
goto out;
}
#else
err = gpg_error (GPG_ERR_NOT_SUPPORTED);
goto out;
#endif
}
else if (uri->auth)
{