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[GNUnet-SVN] r19533 - gnunet/src/include
From: |
gnunet |
Subject: |
[GNUnet-SVN] r19533 - gnunet/src/include |
Date: |
Mon, 30 Jan 2012 13:52:51 +0100 |
Author: grothoff
Date: 2012-01-30 13:52:51 +0100 (Mon, 30 Jan 2012)
New Revision: 19533
Modified:
gnunet/src/include/gnunet_tun_lib.h
Log:
-docu
Modified: gnunet/src/include/gnunet_tun_lib.h
===================================================================
--- gnunet/src/include/gnunet_tun_lib.h 2012-01-30 12:44:32 UTC (rev 19532)
+++ gnunet/src/include/gnunet_tun_lib.h 2012-01-30 12:52:51 UTC (rev 19533)
@@ -70,17 +70,52 @@
*/
struct GNUNET_TUN_IPv4Header
{
+#if __BYTE_ORDER == __LITTLE_ENDIAN
unsigned int header_length:4 GNUNET_PACKED;
unsigned int version:4 GNUNET_PACKED;
+#elif __BYTE_ORDER == __BIG_ENDIAN
+ unsigned int version:4 GNUNET_PACKED;
+ unsigned int header_length:4 GNUNET_PACKED;
+#endif
uint8_t diff_serv;
+
+ /**
+ * Length of the packet, including this header.
+ */
uint16_t total_length GNUNET_PACKED;
+
+ /**
+ * Unique random ID for matching up fragments.
+ */
uint16_t identification GNUNET_PACKED;
+
unsigned int flags:3 GNUNET_PACKED;
+
unsigned int fragmentation_offset:13 GNUNET_PACKED;
+
+ /**
+ * How many more hops can this packet be forwarded?
+ */
uint8_t ttl;
+
+ /**
+ * L4-protocol, for example, IPPROTO_UDP or IPPROTO_TCP.
+ */
uint8_t protocol;
+
+ /**
+ * Checksum.
+ */
uint16_t checksum GNUNET_PACKED;
+
+ /**
+ * Origin of the packet.
+ */
struct in_addr source_address GNUNET_PACKED;
+
+ /**
+ * Destination of the packet.
+ */
struct in_addr destination_address GNUNET_PACKED;
};
@@ -90,26 +125,59 @@
*/
struct GNUNET_TUN_IPv6Header
{
+#if __BYTE_ORDER == __LITTLE_ENDIAN
unsigned int traffic_class_h:4 GNUNET_PACKED;
unsigned int version:4 GNUNET_PACKED;
unsigned int traffic_class_l:4 GNUNET_PACKED;
unsigned int flow_label:20 GNUNET_PACKED;
+#elif __BYTE_ORDER == __BIG_ENDIAN
+ unsigned int version:4 GNUNET_PACKED;
+ unsigned int traffic_class:8 GNUNET_PACKED;
+ unsigned int flow_label:20 GNUNET_PACKED;
+#endif
+ /**
+ * Length of the payload, excluding this header.
+ */
uint16_t payload_length GNUNET_PACKED;
+
+ /**
+ * For example, IPPROTO_UDP or IPPROTO_TCP.
+ */
uint8_t next_header;
+
+ /**
+ * How many more hops can this packet be forwarded?
+ */
uint8_t hop_limit;
+
+ /**
+ * Origin of the packet.
+ */
struct in6_addr source_address GNUNET_PACKED;
+
+ /**
+ * Destination of the packet.
+ */
struct in6_addr destination_address GNUNET_PACKED;
};
/**
- * TCP packet header (FIXME: rename!)
+ * TCP packet header.
*/
struct GNUNET_TUN_TcpHeader
{
uint16_t source_port GNUNET_PACKED;
uint16_t destination_port GNUNET_PACKED;
+
+ /**
+ * Sequence number.
+ */
uint32_t seq GNUNET_PACKED;
+
+ /**
+ * Acknowledgement number.
+ */
uint32_t ack GNUNET_PACKED;
#if __BYTE_ORDER == __LITTLE_ENDIAN
/**
@@ -137,6 +205,9 @@
*/
uint16_t window_size GNUNET_PACKED;
+ /**
+ * Checksum.
+ */
uint16_t crc GNUNET_PACKED;
/**
@@ -147,7 +218,7 @@
/**
- * UDP packet header (FIXME: rename!)
+ * UDP packet header.
*/
struct GNUNET_TUN_UdpHeader
{
@@ -187,6 +258,7 @@
#define GNUNET_TUN_ICMPTYPE6_ECHO_REQUEST 128
#define GNUNET_TUN_ICMPTYPE6_ECHO_REPLY 129
+
/**
* ICMP header.
*/
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