Esempio n. 1
0
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;
}
Esempio n. 2
0
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;
}
Esempio n. 3
0
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;
}
Esempio n. 4
0
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;
}