freeipa/util/ipa_krb5.h
Simo Sorce d5b6c83601 Detect default encsalts kadmin password change
When kadmin tries to change a password it will get the allowed keysalts
from the password policy. Failure to provide them will result in kadmin
using the defaults specified in the kdc.conf file or hardcoded defaults
(the default salt is then of type NORMAL).

This patch provides the supported values that have been read out of the
appropriate LDAP attribute when we read the server configuration.

Then at actual password change, check if kadmin is handing us back the exact
list of supported encsalts we sent it, and in that case replace it with the
real default encsalts.

Fixes https://fedorahosted.org/freeipa/ticket/4914

Signed-off-by: Simo Sorce <simo@redhat.com>
Reviewed-by: Martin Babinsky <mbabinsk@redhat.com>
2015-05-27 09:45:56 -04:00

87 lines
3.2 KiB
C

#ifndef __IPA_KRB5_H_
#define __IPA_KRB5_H_
#include <lber.h>
#include <krb5/krb5.h>
#include <kdb.h>
struct krb_key_salt {
krb5_enctype enctype;
krb5_int32 salttype;
krb5_keyblock key;
krb5_data salt;
};
struct keys_container {
krb5_int32 nkeys;
struct krb_key_salt *ksdata;
};
/* Salt types */
#define NO_SALT -1
#define KRB5_KDB_SALTTYPE_NORMAL 0
#define KRB5_KDB_SALTTYPE_V4 1
#define KRB5_KDB_SALTTYPE_NOREALM 2
#define KRB5_KDB_SALTTYPE_ONLYREALM 3
#define KRB5_KDB_SALTTYPE_SPECIAL 4
#define KRB5_KDB_SALTTYPE_AFS3 5
#define KEYTAB_SET_OID "2.16.840.1.113730.3.8.10.1"
#define KEYTAB_RET_OID "2.16.840.1.113730.3.8.10.2"
#define KEYTAB_GET_OID "2.16.840.1.113730.3.8.10.5"
int krb5_klog_syslog(int, const char *, ...);
void
ipa_krb5_free_ktypes(krb5_context context, krb5_enctype *val);
krb5_error_code ipa_krb5_principal2salt_norealm(krb5_context context,
krb5_const_principal pr,
krb5_data *ret);
krb5_error_code ipa_krb5_generate_key_data(krb5_context krbctx,
krb5_principal principal,
krb5_data pwd, int kvno,
krb5_keyblock *kmkey,
int num_encsalts,
krb5_key_salt_tuple *encsalts,
int *_num_keys,
krb5_key_data **_keys);
void ipa_krb5_free_key_data(krb5_key_data *keys, int num_keys);
int ber_encode_krb5_key_data(krb5_key_data *data,
int numk, int mkvno,
struct berval **encoded);
int ber_decode_krb5_key_data(struct berval *encoded, int *m_kvno,
int *numk, krb5_key_data **data);
krb5_error_code parse_bval_key_salt_tuples(krb5_context kcontext,
const char * const *vals,
int n_vals,
krb5_key_salt_tuple **kst,
int *n_kst);
krb5_error_code filter_key_salt_tuples(krb5_context context,
krb5_key_salt_tuple *req, int n_req,
krb5_key_salt_tuple *supp, int n_supp,
krb5_key_salt_tuple **res, int *n_res);
void free_keys_contents(krb5_context krbctx, struct keys_container *keys);
struct berval *create_key_control(struct keys_container *keys,
const char *principalName);
int ipa_string_to_enctypes(const char *str, struct krb_key_salt **encsalts,
int *num_encsalts, char **err_msg);
int create_keys(krb5_context krbctx,
krb5_principal princ,
char *password,
const char *enctypes_string,
struct keys_container *keys,
char **err_msg);
int ipa_kstuples_to_string(krb5_key_salt_tuple *kst, int n_kst, char **str);
#endif /* __IPA_KRB5_H_ */