isc_result_t dhcp_group_destroy (omapi_object_t *h, const char *file, int line)
{
struct group_object *group, *t;
isc_result_t status;
if (h -> type != dhcp_type_group)
return ISC_R_INVALIDARG;
group = (struct group_object *)h;
if (group -> name) {
if (group_name_hash) {
t = (struct group_object *)0;
if (group_hash_lookup (&t, group_name_hash,
group -> name,
strlen (group -> name), MDL)) {
group_hash_delete (group_name_hash,
group -> name,
strlen (group -> name),
MDL);
group_object_dereference (&t, MDL);
}
}
dfree (group -> name, file, line);
group -> name = (char *)0;
}
if (group -> group)
group_dereference (&group -> group, MDL);
return ISC_R_SUCCESS;
}
isc_result_t supersede_group (struct group_object *group, int writep)
{
struct group_object *t, *u;
isc_result_t status;
/* Register the group in the group name hash table,
so we can look it up later. */
if (group_name_hash) {
t = (struct group_object *)0;
group_hash_lookup (&t, group_name_hash,
group -> name,
strlen (group -> name), MDL);
if (t && t != group) {
/* If this isn't a dynamic entry, then we need to flag
the replacement as not dynamic either - otherwise,
if the dynamic entry is deleted later, the static
entry will come back next time the server is stopped
and restarted. */
if (!(t -> flags & GROUP_OBJECT_DYNAMIC))
group -> flags |= GROUP_OBJECT_STATIC;
/* Delete the old object if it hasn't already been
deleted. If it has already been deleted, get rid of
the hash table entry. This is a legitimate
situation - a deleted static object needs to be kept
around so we remember it's deleted. */
if (!(t -> flags & GROUP_OBJECT_DELETED))
delete_group (t, 0);
else {
group_hash_delete (group_name_hash,
group -> name,
strlen (group -> name),
MDL);
group_object_dereference (&t, MDL);
}
}
} else {
group_new_hash (&group_name_hash, 0, MDL);
t = (struct group_object *)0;
}
/* Add the group to the group name hash if it's not
already there, and also thread it into the list of
dynamic groups if appropriate. */
if (!t) {
group_hash_add (group_name_hash, group -> name,
strlen (group -> name), group, MDL);
}
/* Store the group declaration in the lease file. */
if (writep && group_write_hook) {
if (!(*group_write_hook) (group))
return ISC_R_IOERROR;
}
return ISC_R_SUCCESS;
}
isc_result_t dhcp_group_create (omapi_object_t **lp,
omapi_object_t *id)
{
struct group_object *group;
isc_result_t status;
group = (struct group_object *)0;
status = group_object_allocate (&group, MDL);
if (status != ISC_R_SUCCESS)
return status;
group -> flags = GROUP_OBJECT_DYNAMIC;
status = omapi_object_reference (lp, (omapi_object_t *)group, MDL);
group_object_dereference (&group, MDL);
return status;
}
isc_result_t dhcp_group_lookup (omapi_object_t **lp,
omapi_object_t *id, omapi_object_t *ref)
{
omapi_value_t *tv = (omapi_value_t *)0;
isc_result_t status;
struct group_object *group;
if (!ref)
return ISC_R_NOKEYS;
/* First see if we were sent a handle. */
status = omapi_get_value_str (ref, id, "handle", &tv);
if (status == ISC_R_SUCCESS) {
status = omapi_handle_td_lookup (lp, tv -> value);
omapi_value_dereference (&tv, MDL);
if (status != ISC_R_SUCCESS)
return status;
/* Don't return the object if the type is wrong. */
if ((*lp) -> type != dhcp_type_group) {
omapi_object_dereference (lp, MDL);
return ISC_R_INVALIDARG;
}
}
/* Now look for a name. */
status = omapi_get_value_str (ref, id, "name", &tv);
if (status == ISC_R_SUCCESS) {
group = (struct group_object *)0;
if (group_name_hash &&
group_hash_lookup (&group, group_name_hash,
(const char *)
tv -> value -> u.buffer.value,
tv -> value -> u.buffer.len, MDL)) {
omapi_value_dereference (&tv, MDL);
if (*lp && *lp != (omapi_object_t *)group) {
group_object_dereference (&group, MDL);
omapi_object_dereference (lp, MDL);
return ISC_R_KEYCONFLICT;
} else if (!*lp) {
/* XXX fix so that hash lookup itself creates
XXX the reference. */
omapi_object_reference (lp,
(omapi_object_t *)group,
MDL);
group_object_dereference (&group, MDL);
}
} else if (!*lp)
return ISC_R_NOTFOUND;
}
/* If we get to here without finding a group, no valid key was
specified. */
if (!*lp)
return ISC_R_NOKEYS;
if (((struct group_object *)(*lp)) -> flags & GROUP_OBJECT_DELETED) {
omapi_object_dereference (lp, MDL);
return ISC_R_NOTFOUND;
}
return ISC_R_SUCCESS;
}
