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lib/krb5: fallback Windows default ccname to HLKM

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Windows queries the default ccache name via the registry.  Prior
to this change only the HKEY_CURRENT_USER hive.  Fallback to
HKEY_LOCAL_MACHINE if there is no "ccname" value specified for the
user.  This permits system or domain administrators to set the
default ccache to MSLSA: for all users.

Change-Id: Ide3b51358f8fc6944ca698e4a68295be9463d4e0
This commit is contained in:
Jeffrey Altman
2016-03-31 10:24:25 -05:00
parent 13568961ec
commit eb1545382a
1 changed files with 18 additions and 7 deletions
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25
lib/krb5/cache.c
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@@ -1815,18 +1815,17 @@ krb5_cc_get_kdc_offset(krb5_context context, krb5_ccache id, krb5_deltat *offset
return (*id->ops->get_kdc_offset)(context, id, offset);
}
#ifdef _WIN32
#define REGPATH_MIT_KRB5 "SOFTWARE\\MIT\\Kerberos5"
KRB5_LIB_FUNCTION char * KRB5_LIB_CALL
_krb5_get_default_cc_name_from_registry(krb5_context context)
static char *
_get_default_cc_name_from_registry(krb5_context context, HKEY hkBase)
{
HKEY hk_k5 = 0;
LONG code;
char * ccname = NULL;
char *ccname = NULL;
code = RegOpenKeyEx(HKEY_CURRENT_USER,
code = RegOpenKeyEx(hkBase,
REGPATH_MIT_KRB5,
0, KEY_READ, &hk_k5);
@@ -1841,6 +1840,19 @@ _krb5_get_default_cc_name_from_registry(krb5_context context)
return ccname;
}
KRB5_LIB_FUNCTION char * KRB5_LIB_CALL
_krb5_get_default_cc_name_from_registry(krb5_context context)
{
char *ccname;
ccname = _get_default_cc_name_from_registry(context, HKEY_CURRENT_USER);
if (ccname == NULL)
ccname = _get_default_cc_name_from_registry(context,
HKEY_LOCAL_MACHINE);
return ccname;
}
KRB5_LIB_FUNCTION int KRB5_LIB_CALL
_krb5_set_default_cc_name_to_registry(krb5_context context, krb5_ccache id)
{
@@ -1872,5 +1884,4 @@ _krb5_set_default_cc_name_to_registry(krb5_context context, krb5_ccache id)
return ret;
}
#endif