/contrib/bind9/bin/named/lwdnoop.c

 1/*
 2 * Copyright (C) 2004, 2005, 2007, 2008  Internet Systems Consortium, Inc. ("ISC")
 3 * Copyright (C) 2000, 2001  Internet Software Consortium.
 4 *
 5 * Permission to use, copy, modify, and/or distribute this software for any
 6 * purpose with or without fee is hereby granted, provided that the above
 7 * copyright notice and this permission notice appear in all copies.
 8 *
 9 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
10 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
11 * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
12 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
13 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
14 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
15 * PERFORMANCE OF THIS SOFTWARE.
16 */
17
18/* $Id: lwdnoop.c,v 1.13 2008/01/22 23:28:04 tbox Exp $ */
19
20/*! \file */
21
22#include <config.h>
23
24#include <isc/socket.h>
25#include <isc/util.h>
26
27#include <named/types.h>
28#include <named/lwdclient.h>
29
30void
31ns_lwdclient_processnoop(ns_lwdclient_t *client, lwres_buffer_t *b) {
32	lwres_nooprequest_t *req;
33	lwres_noopresponse_t resp;
34	isc_result_t result;
35	lwres_result_t lwres;
36	isc_region_t r;
37	lwres_buffer_t lwb;
38
39	REQUIRE(NS_LWDCLIENT_ISRECVDONE(client));
40	INSIST(client->byaddr == NULL);
41
42	req = NULL;
43
44	result = lwres_nooprequest_parse(client->clientmgr->lwctx,
45					 b, &client->pkt, &req);
46	if (result != LWRES_R_SUCCESS)
47		goto send_error;
48
49	client->pkt.recvlength = LWRES_RECVLENGTH;
50	client->pkt.authtype = 0; /* XXXMLG */
51	client->pkt.authlength = 0;
52	client->pkt.result = LWRES_R_SUCCESS;
53
54	resp.datalength = req->datalength;
55	resp.data = req->data;
56
57	lwres = lwres_noopresponse_render(client->clientmgr->lwctx, &resp,
58					  &client->pkt, &lwb);
59	if (lwres != LWRES_R_SUCCESS)
60		goto cleanup_req;
61
62	r.base = lwb.base;
63	r.length = lwb.used;
64	client->sendbuf = r.base;
65	client->sendlength = r.length;
66	result = ns_lwdclient_sendreply(client, &r);
67	if (result != ISC_R_SUCCESS)
68		goto cleanup_lwb;
69
70	/*
71	 * We can now destroy request.
72	 */
73	lwres_nooprequest_free(client->clientmgr->lwctx, &req);
74
75	NS_LWDCLIENT_SETSEND(client);
76
77	return;
78
79 cleanup_lwb:
80	lwres_context_freemem(client->clientmgr->lwctx, lwb.base, lwb.length);
81
82 cleanup_req:
83	lwres_nooprequest_free(client->clientmgr->lwctx, &req);
84
85 send_error:
86	ns_lwdclient_errorpktsend(client, LWRES_R_FAILURE);
87}