Standard TCP/IP network structs and IP checksum calculations for TUN interaction. More...

This graph shows which files directly or indirectly include this file:

Data Structures
struct	GNUNET_TUN_Layer2PacketHeader
	Header from Linux TUN interface. More...

struct	GNUNET_TUN_IPv4Header
	Standard IPv4 header. More...

struct	GNUNET_TUN_IPv6Header
	Standard IPv6 header. More...

struct	GNUNET_TUN_TcpHeader
	TCP packet header. More...

struct	GNUNET_TUN_UdpHeader
	UDP packet header. More...

struct	GNUNET_TUN_DnsFlags
	DNS flags (largely RFC 1035 / RFC 2136). More...

struct	GNUNET_TUN_DnsHeader
	DNS header. More...

struct	GNUNET_TUN_DnsSoaRecord
	Payload of DNS SOA record (header). More...

struct	GNUNET_TUN_DnsSrvRecord
	Payload of DNS SRV record (header). More...

struct	GNUNET_TUN_DnsUriRecord
	Payload of DNS URI record (header). More...

struct	GNUNET_TUN_DnsCertRecord
	Payload of DNS CERT record. More...

struct	GNUNET_TUN_DnsTlsaRecord
	Payload of DNSSEC TLSA record. More...

struct	GNUNET_TUN_GnsVpnRecord
	Payload of GNS VPN record. More...

struct	GNUNET_TUN_DnsQueryLine
	DNS query prefix. More...

struct	GNUNET_TUN_DnsRecordLine
	General DNS record prefix. More...

struct	GNUNET_TUN_IcmpHeader
	ICMP header. More...

Macros
#define	ETH_P_IPV4 0x0800
	Number for IPv4.

#define	ETH_P_IPV6 0x86DD
	Number for IPv6.

#define	GNUNET_TUN_IPV4_REGEXLEN 16
	Maximum regex string length for use with GNUNET_REGEX_ipv4toregexsearch.

#define	GNUNET_TUN_IPV6_REGEXLEN 40
	Maximum regex string length for use with GNUNET_REGEX_ipv6toregexsearch.

#define	GNUNET_TUN_TCP_FLAGS_FIN 1
	TCP flags.

#define	GNUNET_TUN_TCP_FLAGS_SYN 2

#define	GNUNET_TUN_TCP_FLAGS_RST 4

#define	GNUNET_TUN_TCP_FLAGS_PSH 8

#define	GNUNET_TUN_TCP_FLAGS_ACK 16

#define	GNUNET_TUN_TCP_FLAGS_URG 32

#define	GNUNET_TUN_TCP_FLAGS_ECE 64

#define	GNUNET_TUN_TCP_FLAGS_CWR 128

#define	GNUNET_TUN_DNS_CLASS_INTERNET 1
	A few common DNS classes (ok, only one is common, but I list a couple more to make it clear what we're talking about here).

#define	GNUNET_TUN_DNS_CLASS_CHAOS 3

#define	GNUNET_TUN_DNS_CLASS_HESIOD 4

#define	GNUNET_TUN_DNS_OPCODE_QUERY 0

#define	GNUNET_TUN_DNS_OPCODE_INVERSE_QUERY 1

#define	GNUNET_TUN_DNS_OPCODE_STATUS 2

#define	GNUNET_TUN_DNS_RETURN_CODE_NO_ERROR 0
	RFC 1035 codes.

#define	GNUNET_TUN_DNS_RETURN_CODE_FORMAT_ERROR 1

#define	GNUNET_TUN_DNS_RETURN_CODE_SERVER_FAILURE 2

#define	GNUNET_TUN_DNS_RETURN_CODE_NAME_ERROR 3

#define	GNUNET_TUN_DNS_RETURN_CODE_NOT_IMPLEMENTED 4

#define	GNUNET_TUN_DNS_RETURN_CODE_REFUSED 5

#define	GNUNET_TUN_DNS_RETURN_CODE_YXDOMAIN 6
	RFC 2136 codes.

#define	GNUNET_TUN_DNS_RETURN_CODE_YXRRSET 7

#define	GNUNET_TUN_DNS_RETURN_CODE_NXRRSET 8

#define	GNUNET_TUN_DNS_RETURN_CODE_NOT_AUTH 9

#define	GNUNET_TUN_DNS_RETURN_CODE_NOT_ZONE 10

#define	GNUNET_TUN_ICMPTYPE_ECHO_REPLY 0

#define	GNUNET_TUN_ICMPTYPE_DESTINATION_UNREACHABLE 3

#define	GNUNET_TUN_ICMPTYPE_SOURCE_QUENCH 4

#define	GNUNET_TUN_ICMPTYPE_REDIRECT_MESSAGE 5

#define	GNUNET_TUN_ICMPTYPE_ECHO_REQUEST 8

#define	GNUNET_TUN_ICMPTYPE_ROUTER_ADVERTISEMENT 9

#define	GNUNET_TUN_ICMPTYPE_ROUTER_SOLICITATION 10

#define	GNUNET_TUN_ICMPTYPE_TIME_EXCEEDED 11

#define	GNUNET_TUN_ICMPTYPE6_DESTINATION_UNREACHABLE 1

#define	GNUNET_TUN_ICMPTYPE6_PACKET_TOO_BIG 2

#define	GNUNET_TUN_ICMPTYPE6_TIME_EXCEEDED 3

#define	GNUNET_TUN_ICMPTYPE6_PARAMETER_PROBLEM 4

#define	GNUNET_TUN_ICMPTYPE6_ECHO_REQUEST 128

#define	GNUNET_TUN_ICMPTYPE6_ECHO_REPLY 129

Functions
GNUNET_NETWORK_STRUCT_END void	GNUNET_TUN_initialize_ipv4_header (struct GNUNET_TUN_IPv4Header ip, uint8_t protocol, uint16_t payload_length, const struct in_addr src, const struct in_addr *dst)
	Initialize an IPv4 header.

void	GNUNET_TUN_initialize_ipv6_header (struct GNUNET_TUN_IPv6Header ip, uint8_t protocol, uint16_t payload_length, const struct in6_addr src, const struct in6_addr *dst)
	Initialize an IPv6 header.

void	GNUNET_TUN_calculate_tcp4_checksum (const struct GNUNET_TUN_IPv4Header ip, struct GNUNET_TUN_TcpHeader tcp, const void *payload, uint16_t payload_length)
	Calculate IPv4 TCP checksum.

void	GNUNET_TUN_calculate_tcp6_checksum (const struct GNUNET_TUN_IPv6Header ip, struct GNUNET_TUN_TcpHeader tcp, const void *payload, uint16_t payload_length)
	Calculate IPv6 TCP checksum.

void	GNUNET_TUN_calculate_udp4_checksum (const struct GNUNET_TUN_IPv4Header ip, struct GNUNET_TUN_UdpHeader udp, const void *payload, uint16_t payload_length)
	Calculate IPv4 UDP checksum.

void	GNUNET_TUN_calculate_udp6_checksum (const struct GNUNET_TUN_IPv6Header ip, struct GNUNET_TUN_UdpHeader udp, const void *payload, uint16_t payload_length)
	Calculate IPv6 UDP checksum.

void	GNUNET_TUN_calculate_icmp_checksum (struct GNUNET_TUN_IcmpHeader icmp, const void payload, uint16_t payload_length)
	Calculate ICMP checksum.

void	GNUNET_TUN_service_name_to_hash (const char service_name, struct GNUNET_HashCode hc)
	Hash the service name of a hosted service to the hash code that is used to identify the service on the network.

int	GNUNET_TUN_sockaddr_cmp (const struct sockaddr sa, const struct sockaddr sb, int include_port)
	Check if two sockaddrs are equal.

void	GNUNET_TUN_compute_service_cadet_port (const struct GNUNET_HashCode desc, uint16_t ip_port, struct GNUNET_HashCode cadet_port)
	Compute the CADET port given a service descriptor (returned from GNUNET_TUN_service_name_to_hash) and a TCP/UDP port ip_port.

Variables
struct GNUNET_TUN_IPv4Header	GNUNET_GCC_STRUCT_LAYOUT

Detailed Description

Standard TCP/IP network structs and IP checksum calculations for TUN interaction.

Definition in file gnunet_tun_lib.h.

Data Structures

Macros

Functions

Variables

Detailed Description