NAME
dced_keytab_add_key - Adds a key (server password) to a specified
key table on a specific host
SYNOPSIS
#include <dce/dced.h>
void dced_keytab_add_key( dced_binding_handle_t dced_bh,
uuid_t *keytab_uuid,
dced_key_t *key,
error_status_t *status );
PARAMETERS
Input
dced_bh
Specifies the dced binding handle for the keytab service
on a specific host.
keytab_uuid
Specifies the UUID that dced uses to identify the key table
to which the key is to be added.
Input/Output
key Specifies the key to be added. Some fields are completed
by dced. See dced_intro.
Output
status
Returns the status code from this routine. This status code
indicates whether the routine completed successfully or, if
not, why not. The possible status codes are:
error_status_ok
db_s_bad_index_type
db_s_key_not_found
dced_s_bad_binding
dced_s_key_v0_not_allowe
dced_s_key_version_mismatch
dced_s_need_privacy
dced_s_random_key_not_allowed
rpc_s_binding_has_no_auth
rpc_s_invalid_binding
rpc_s_wrong_kind_of_binding
sec_acl_invalid_permission
sec_key_mgmt_e_authn_invalid
sec_key_mgmt_e_key_unavailable
sec_key_mgmt_e_key_unsupported
sec_key_mgmt_e_key_version_exists
sec_key_mgmt_e_unauthorized
DESCRIPTION
The dced_keytab_add_key() routine adds a key to a server's key
table (file) on a specific host, without changing the key in the
security registry. (Servers use sec_key_mgmt_set_key to do this
for their own local key table.)
Most management applications use the dced_keytab_change_key()
routine to remotely change a key because it also changes the key
in the Security Registry.
Managing the same key in multiple key tables is a more complex
process. The Security Registry needs a copy of a server's key so
that during the authentication process, it can encrypt tickets
that only a server with that key can later decrypt. Part of
updating a key in the Security Registry also includes automatic
version number updating. When servers share the same principle
identity they use the same key. If these servers are on different
hosts, then the key must be in more than one key table. (Even if
the servers are on the same host, it is possible for their keys to
be in different key tables, although this is not a recommended key
management practice.) When the same keys in different tables need
changing, one (perhaps the master server or busiest one) is changed
using dced_keytab_change_key() which also causes an automatic
version update. However, all other copies of the key must be
changed using the dced_keytab_add_key() routine so that the version
number does not change again.
Prior to calling dced_keytab_add_key() the application must have
established a valid dced binding handle to the keytab service by
calling either the dced_binding_create() or
dced_binding_from_rpc_binding() routine.
RELATED INFORMATION
Routines: dced_keytab_change_key
sec_key_mgmt_set_key
dced_binding_create
dced_binding_from_rpc_binding
Books: OSF DCE Application Development Guide.