diff options
Diffstat (limited to 'source4/kdc/hdb-samba4.c')
| -rw-r--r-- | source4/kdc/hdb-samba4.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/source4/kdc/hdb-samba4.c b/source4/kdc/hdb-samba4.c index 43e836f8360..a8aae50b5b0 100644 --- a/source4/kdc/hdb-samba4.c +++ b/source4/kdc/hdb-samba4.c @@ -136,6 +136,47 @@ static krb5_error_code hdb_samba4_fetch_kvno(krb5_context context, HDB *db, return code; } +static krb5_error_code hdb_samba4_kpasswd_fetch_kvno(krb5_context context, HDB *db, + krb5_const_principal _principal, + unsigned flags, + krb5_kvno _kvno, + hdb_entry_ex *entry_ex) +{ + struct samba_kdc_db_context *kdc_db_ctx = NULL; + krb5_error_code ret; + krb5_principal kpasswd_principal = NULL; + + kdc_db_ctx = talloc_get_type_abort(db->hdb_db, + struct samba_kdc_db_context); + + ret = smb_krb5_make_principal(context, &kpasswd_principal, + lpcfg_realm(kdc_db_ctx->lp_ctx), + "kadmin", "changepw", + NULL); + if (ret) { + return ret; + } + smb_krb5_principal_set_type(context, kpasswd_principal, KRB5_NT_SRV_INST); + + /* + * For the kpasswd service, always ensure we get the latest kvno. This + * also means we (correctly) refuse RODC-issued tickets. + */ + flags &= ~HDB_F_KVNO_SPECIFIED; + + /* Don't bother looking up a client or krbtgt. */ + flags &= ~(SDB_F_GET_CLIENT|SDB_F_GET_KRBTGT); + + ret = hdb_samba4_fetch_kvno(context, db, + kpasswd_principal, + flags, + 0, + entry_ex); + + krb5_free_principal(context, kpasswd_principal); + return ret; +} + static krb5_error_code hdb_samba4_firstkey(krb5_context context, HDB *db, unsigned flags, hdb_entry_ex *entry) { @@ -194,6 +235,14 @@ static krb5_error_code hdb_samba4_nextkey(krb5_context context, HDB *db, unsigne return ret; } +static krb5_error_code hdb_samba4_nextkey_panic(krb5_context context, HDB *db, + unsigned flags, + hdb_entry_ex *entry) +{ + DBG_ERR("Attempt to iterate kpasswd keytab => PANIC\n"); + smb_panic("hdb_samba4_nextkey_panic: Attempt to iterate kpasswd keytab"); +} + static krb5_error_code hdb_samba4_destroy(krb5_context context, HDB *db) { talloc_free(db); @@ -522,3 +571,20 @@ NTSTATUS hdb_samba4_create_kdc(struct samba_kdc_base_context *base_ctx, return NT_STATUS_OK; } + +NTSTATUS hdb_samba4_kpasswd_create_kdc(struct samba_kdc_base_context *base_ctx, + krb5_context context, struct HDB **db) +{ + NTSTATUS nt_status; + + nt_status = hdb_samba4_create_kdc(base_ctx, context, db); + if (!NT_STATUS_IS_OK(nt_status)) { + return nt_status; + } + + (*db)->hdb_fetch_kvno = hdb_samba4_kpasswd_fetch_kvno; + (*db)->hdb_firstkey = hdb_samba4_nextkey_panic; + (*db)->hdb_nextkey = hdb_samba4_nextkey_panic; + + return NT_STATUS_OK; +} |