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s4:kdc: Consider a single‐component krbtgt principal to be the TGS

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This matches the behaviour of Windows.

NOTE: This commit finally works again!

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15482

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This commit is contained in:
Joseph Sutton 2023-09-21 11:14:36 +12:00 committed by Andrew Bartlett
parent 7b68f751be
commit ddef0e5e1f
4 changed files with 6 additions and 19 deletions
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7
lib/krb5_wrap/krb5_samba.c
View File

@ -3454,6 +3454,10 @@ int smb_krb5_principal_is_tgs(krb5_context context,
int eq = 1;
krb5_error_code ret = 0;
if (krb5_princ_size(context, principal) > 2) {
return 0;
}
ret = smb_krb5_principal_get_comp_string(NULL, context, principal, 0, &p);
if (ret == ENOENT) {
return 0;
@ -3461,8 +3465,7 @@ int smb_krb5_principal_is_tgs(krb5_context context,
return -1;
}
eq = krb5_princ_size(context, principal) == 2 &&
(strcmp(p, KRB5_TGS_NAME) == 0);
eq = strcmp(p, KRB5_TGS_NAME) == 0;
talloc_free(p);

11
selftest/knownfail_heimdal_kdc
View File

@ -135,14 +135,3 @@
^samba\.tests\.krb5\.conditional_ace_tests\.samba\.tests\.krb5\.conditional_ace_tests\.ConditionalAceTests\.test_device_in_network_group_rbcd\(ad_dc\)$
^samba\.tests\.krb5\.conditional_ace_tests\.samba\.tests\.krb5\.conditional_ace_tests\.DeviceRestrictionTests\.test_device_in_network_group\(ad_dc\)$
^samba\.tests\.krb5\.conditional_ace_tests\.samba\.tests\.krb5\.conditional_ace_tests\.TgsReqServicePolicyTests\.test_device_in_network_group\(ad_dc\)$
#
# Single‐component krbtgt principal tests
#
^samba\.tests\.krb5\.as_req_tests\.samba\.tests\.krb5\.as_req_tests\.AsReqKerberosTests\.test_krbtgt_single_component_krbtgt\(fl2003dc\)$
^samba\.tests\.krb5\.as_req_tests\.samba\.tests\.krb5\.as_req_tests\.AsReqKerberosTests\.test_krbtgt_single_component_krbtgt\(fl2008r2dc\)$
^samba\.tests\.krb5\.kdc_tgs_tests\.samba\.tests\.krb5\.kdc_tgs_tests\.KdcTgsTests\.test_single_component_krbtgt_no_pac_as_req\(ad_dc\)$
^samba\.tests\.krb5\.kdc_tgs_tests\.samba\.tests\.krb5\.kdc_tgs_tests\.KdcTgsTests\.test_single_component_krbtgt_no_pac_tgs_req\(ad_dc\)$
^samba\.tests\.krb5\.kdc_tgs_tests\.samba\.tests\.krb5\.kdc_tgs_tests\.KdcTgsTests\.test_single_component_krbtgt_requester_sid_as_req\(ad_dc\)$
^samba\.tests\.krb5\.kdc_tgs_tests\.samba\.tests\.krb5\.kdc_tgs_tests\.KdcTgsTests\.test_single_component_krbtgt_requester_sid_tgs_req\(ad_dc\)$
^samba\.tests\.krb5\.kdc_tgs_tests\.samba\.tests\.krb5\.kdc_tgs_tests\.KdcTgsTests\.test_single_component_krbtgt_service_ticket\(ad_dc\)$
^samba\.tests\.krb5\.kpasswd_tests\.samba\.tests\.krb5\.kpasswd_tests\.KpasswdTests\.test_kpasswd_tgt_single_component_krbtgt\(ad_dc\)$

5
selftest/knownfail_mit_kdc_1_20
View File

@ -132,11 +132,6 @@
#
# Single‐component krbtgt principal tests
#
^samba\.tests\.krb5\.as_req_tests\.samba\.tests\.krb5\.as_req_tests\.AsReqKerberosTests\.test_krbtgt_single_component_krbtgt\(fl2003dc\)$
^samba\.tests\.krb5\.as_req_tests\.samba\.tests\.krb5\.as_req_tests\.AsReqKerberosTests\.test_krbtgt_single_component_krbtgt\(fl2008r2dc\)$
^samba\.tests\.krb5\.kdc_tgs_tests\.samba\.tests\.krb5\.kdc_tgs_tests\.KdcTgsTests\.test_single_component_krbtgt_no_pac_as_req\(ad_dc\)$
^samba\.tests\.krb5\.kdc_tgs_tests\.samba\.tests\.krb5\.kdc_tgs_tests\.KdcTgsTests\.test_single_component_krbtgt_no_pac_tgs_req\(ad_dc\)$
^samba\.tests\.krb5\.kdc_tgs_tests\.samba\.tests\.krb5\.kdc_tgs_tests\.KdcTgsTests\.test_single_component_krbtgt_requester_sid_as_req\(ad_dc\)$
^samba\.tests\.krb5\.kdc_tgs_tests\.samba\.tests\.krb5\.kdc_tgs_tests\.KdcTgsTests\.test_single_component_krbtgt_requester_sid_tgs_req\(ad_dc\)$
^samba\.tests\.krb5\.kdc_tgs_tests\.samba\.tests\.krb5\.kdc_tgs_tests\.KdcTgsTests\.test_single_component_krbtgt_service_ticket\(ad_dc\)$
^samba\.tests\.krb5\.kpasswd_tests\.samba\.tests\.krb5\.kpasswd_tests\.KpasswdTests\.test_kpasswd_tgt_single_component_krbtgt\(ad_dc\)$

2
source4/kdc/db-glue.c
View File

@ -2488,7 +2488,7 @@ static krb5_error_code samba_kdc_fetch_krbtgt(krb5_context context,
}
if (lpcfg_is_my_domain_or_realm(lp_ctx, realm_from_princ)
&& lpcfg_is_my_domain_or_realm(lp_ctx, realm_princ_comp)) {
&& (realm_princ_comp == NULL || lpcfg_is_my_domain_or_realm(lp_ctx, realm_princ_comp))) {
/* us, or someone quite like us */
/* Kludge, kludge, kludge. If the realm part of krbtgt/realm,
* is in our db, then direct the caller at our primary