Example #1
0
File: conf.c Project: idtek/knot
struct sockaddr_storage conf_addr(
	conf_val_t *val,
	const char *sock_base_dir)
{
	assert(val != NULL && val->item != NULL);
	assert(val->item->type == YP_TADDR ||
	       (val->item->type == YP_TREF &&
	        val->item->var.r.ref->var.g.id->type == YP_TADDR));

	struct sockaddr_storage out = { AF_UNSPEC };

	if (val->code == KNOT_EOK) {
		bool no_port;
		conf_val(val);
		out = yp_addr(val->data, &no_port);

		if (out.ss_family == AF_UNIX) {
			// val->data[0] is socket type identifier!
			if (val->data[1] != '/' && sock_base_dir != NULL) {
				char *tmp = sprintf_alloc("%s/%s", sock_base_dir,
				                          val->data + 1);
				val->code = sockaddr_set(&out, AF_UNIX, tmp, 0);
				free(tmp);
			}
		} else if (no_port) {
			sockaddr_port_set(&out, val->item->var.a.dflt_port);
		}
	} else {
		const char *dflt_socket = val->item->var.a.dflt_socket;
		if (dflt_socket != NULL) {
			if (dflt_socket[0] == '/' || sock_base_dir == NULL) {
				val->code = sockaddr_set(&out, AF_UNIX,
				                         dflt_socket, 0);
			} else {
				char *tmp = sprintf_alloc("%s/%s", sock_base_dir,
				                          dflt_socket);
				val->code = sockaddr_set(&out, AF_UNIX, tmp, 0);
				free(tmp);
			}
		}
	}

	return out;
}
Example #2
0
static int rosedb_log_message(char *stream, size_t *maxlen, knot_pkt_t *pkt,
                              const char *threat_code, struct query_data *qdata)
{
	char dname_buf[KNOT_DNAME_MAXLEN] = {'\0'};
	struct sockaddr_storage addr;
	socklen_t addr_len = sizeof(addr);
	time_t now = time(NULL);
	struct tm tm;
	gmtime_r(&now, &tm);

	/* Field 1 Timestamp (UTC). */
	STREAM_WRITE(stream, maxlen, strftime, "%Y-%m-%d %H:%M:%S\t", &tm);

	/* Field 2/3 Remote, local address. */
	const struct sockaddr *remote = (const struct sockaddr *)qdata->param->remote;
	memcpy(&addr, remote, sockaddr_len(remote));
	int client_port = sockaddr_port(&addr);
	sockaddr_port_set(&addr, 0);
	STREAM_WRITE(stream, maxlen, sockaddr_tostr, &addr);
	STREAM_WRITE(stream, maxlen, snprintf, "\t");
	getsockname(qdata->param->socket, (struct sockaddr *)&addr, &addr_len);
	int server_port = sockaddr_port(&addr);
	sockaddr_port_set(&addr, 0);
	STREAM_WRITE(stream, maxlen, sockaddr_tostr, &addr);
	STREAM_WRITE(stream, maxlen, snprintf, "\t");

	/* Field 4/5 Local, remote port. */
	STREAM_WRITE(stream, maxlen, snprintf, "%d\t%d\t", client_port, server_port);

	/* Field 6 Threat ID. */
	STREAM_WRITE(stream, maxlen, snprintf, "%s\t", threat_code);

	/* Field 7 - 13 NULL */
	STREAM_WRITE(stream, maxlen, snprintf, "\t\t\t\t\t\t\t");

	/* Field 14 QNAME */
	knot_dname_to_str(dname_buf, knot_pkt_qname(qdata->query), sizeof(dname_buf));
	STREAM_WRITE(stream, maxlen, snprintf, "%s\t", dname_buf);

	/* Field 15 Resolution (0 = local, 1 = lookup)*/
	STREAM_WRITE(stream, maxlen, snprintf, "0\t");

	/* Field 16 RDATA.
	 * - Return randomly RDATA in the answer section (probabilistic rotation).
	 * - Empty if no answer.
	 */
	const knot_pktsection_t *ans = knot_pkt_section(pkt, KNOT_ANSWER);
	if (ans->count > 0) {
		const knot_rrset_t *rr = &ans->rr[knot_random_uint16_t() % ans->count];
		int ret = knot_rrset_txt_dump_data(rr, 0, stream, *maxlen, &KNOT_DUMP_STYLE_DEFAULT);
		if (ret < 0) {
			return ret;
		}
		stream_skip(&stream, maxlen, ret);
	}
	STREAM_WRITE(stream, maxlen, snprintf, "\t");

	/* Field 17 Connection type. */
	STREAM_WRITE(stream, maxlen, snprintf, "%s\t",
	             net_is_connected(qdata->param->socket) ? "TCP" : "UDP");

	/* Field 18 Query type. */
	char type_str[16] = { '\0' };
	knot_rrtype_to_string(knot_pkt_qtype(qdata->query), type_str, sizeof(type_str));
	STREAM_WRITE(stream, maxlen, snprintf, "%s\t", type_str);

	/* Field 19 First authority. */
	const knot_pktsection_t *ns = knot_pkt_section(pkt, KNOT_AUTHORITY);
	if (ns->count > 0 && ns->rr[0].type == KNOT_RRTYPE_NS) {
		const knot_dname_t *label = knot_ns_name(&ns->rr[0].rrs, 0);
		memset(dname_buf, 0, sizeof(dname_buf));
		memcpy(dname_buf, label + 1, *label);
		STREAM_WRITE(stream, maxlen, snprintf, "%s", dname_buf);
	}

	return KNOT_EOK;
}