Adding upstream version 2.7.6.upstream/2.7.6upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 130 insertions, 0 deletions

diff --git a/src/contrib/dnstap/message.c b/src/contrib/dnstap/message.c
new file mode 100644
index 0000000..0b41e9d
--- /dev/null
+++ b/src/contrib/dnstap/message.c
@@ -0,0 +1,130 @@
+/*  Copyright (C) 2017 Farsight Security, Inc. <software@farsightsecurity.com>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <netinet/in.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "libknot/errcode.h"
+
+#include "contrib/dnstap/convert.h"
+#include "contrib/dnstap/message.h"
+
+static void set_address(const struct sockaddr *sockaddr,
+                        ProtobufCBinaryData   *addr,
+                        protobuf_c_boolean    *has_addr,
+                        uint32_t              *port,
+                        protobuf_c_boolean    *has_port)
+{
+	if (sockaddr == NULL) {
+		*has_addr = 0;
+		*has_port = 0;
+		return;
+	}
+
+	*has_addr = 1;
+	*has_port = 1;
+
+	if (sockaddr->sa_family == AF_INET) {
+		const struct sockaddr_in *sai;
+		sai = (const struct sockaddr_in *)sockaddr;
+		addr->len = sizeof(sai->sin_addr);
+		addr->data = (uint8_t *)&sai->sin_addr.s_addr;
+		*port = ntohs(sai->sin_port);
+	} else if (sockaddr->sa_family == AF_INET6) {
+		const struct sockaddr_in6 *sai6;
+		sai6 = (const struct sockaddr_in6 *)sockaddr;
+		addr->len = sizeof(sai6->sin6_addr);
+		addr->data = (uint8_t *)&sai6->sin6_addr.s6_addr;
+		*port = ntohs(sai6->sin6_port);
+	}
+}
+
+static int get_family(const struct sockaddr *query_sa,
+	              const struct sockaddr *response_sa)
+{
+	const struct sockaddr *source = query_sa ? query_sa : response_sa;
+	if (source == NULL) {
+		return 0;
+	}
+
+	return dt_family_encode(source->sa_family);
+}
+
+int dt_message_fill(Dnstap__Message             *m,
+                    const Dnstap__Message__Type type,
+                    const struct sockaddr       *query_sa,
+                    const struct sockaddr       *response_sa,
+                    const int                   protocol,
+                    const void                  *wire,
+                    const size_t                len_wire,
+                    const struct timespec       *mtime)
+{
+	if (m == NULL) {
+		return KNOT_EINVAL;
+	}
+
+	memset(m, 0, sizeof(*m));
+
+	m->base.descriptor = &dnstap__message__descriptor;
+
+	// Message.type
+	m->type = type;
+
+	// Message.socket_family
+	m->socket_family = get_family(query_sa, response_sa);
+	m->has_socket_family = m->socket_family != 0;
+
+	// Message.socket_protocol
+	m->socket_protocol = dt_protocol_encode(protocol);
+	m->has_socket_protocol = m->socket_protocol != 0;
+
+	// Message addresses
+	set_address(query_sa, &m->query_address, &m->has_query_address,
+	            &m->query_port, &m->has_query_port);
+	set_address(response_sa, &m->response_address, &m->has_response_address,
+	            &m->response_port, &m->has_response_port);
+
+	if (dt_message_type_is_query(type)) {
+		// Message.query_message
+		m->query_message.len = len_wire;
+		m->query_message.data = (uint8_t *)wire;
+		m->has_query_message = 1;
+		// Message.query_time_sec, Message.query_time_nsec
+		if (mtime != NULL) {
+			m->query_time_sec = mtime->tv_sec;
+			m->query_time_nsec = mtime->tv_nsec;
+			m->has_query_time_sec = 1;
+			m->has_query_time_nsec = 1;
+		}
+	} else if (dt_message_type_is_response(type)) {
+		// Message.response_message
+		m->response_message.len = len_wire;
+		m->response_message.data = (uint8_t *)wire;
+		m->has_response_message = 1;
+		// Message.response_time_sec, Message.response_time_nsec
+		if (mtime != NULL) {
+			m->response_time_sec = mtime->tv_sec;
+			m->response_time_nsec = mtime->tv_nsec;
+			m->has_response_time_sec = 1;
+			m->has_response_time_nsec = 1;
+		}
+	}
+
+	return KNOT_EOK;
+}