API for helper library to parse DNS packets. More...

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Data Structures
struct	GNUNET_DNSPARSER_Query
	A DNS query. More...

struct	GNUNET_DNSPARSER_MxRecord
	Information from MX records (RFC 1035). More...

struct	GNUNET_DNSPARSER_SrvRecord
	Information from SRV records (RFC 2782). More...

struct	GNUNET_DNSPARSER_UriRecord
	Information from URI records (RFC 7553). More...

struct	GNUNET_DNSPARSER_CertRecord
	Information from CERT records (RFC 4034). More...

struct	GNUNET_DNSPARSER_SoaRecord
	Information from SOA records (RFC 1035). More...

struct	GNUNET_DNSPARSER_CaaRecord
	Information from CAA records (RFC 6844). More...

struct	GNUNET_DNSPARSER_RawRecord
	Binary record information (unparsed). More...

struct	GNUNET_DNSPARSER_Record
	A DNS response record. More...

struct	GNUNET_DNSPARSER_Packet
	Easy-to-process, parsed version of a DNS packet. More...

Macros
#define	GNUNET_DNSPARSER_MAX_LABEL_LENGTH 63
	Maximum length of a label in DNS. More...

#define	GNUNET_DNSPARSER_MAX_NAME_LENGTH 253
	Maximum length of a name in DNS. More...

#define	GNUNET_DNSPARSER_TYPE_ANY 0
	A few common DNS types. More...

#define	GNUNET_DNSPARSER_TYPE_A 1

#define	GNUNET_DNSPARSER_TYPE_NS 2

#define	GNUNET_DNSPARSER_TYPE_CNAME 5

#define	GNUNET_DNSPARSER_TYPE_SOA 6

#define	GNUNET_DNSPARSER_TYPE_PTR 12

#define	GNUNET_DNSPARSER_TYPE_MX 15

#define	GNUNET_DNSPARSER_TYPE_TXT 16

#define	GNUNET_DNSPARSER_TYPE_RP 17

#define	GNUNET_DNSPARSER_TYPE_AFSDB 18

#define	GNUNET_DNSPARSER_TYPE_SIG 24

#define	GNUNET_DNSPARSER_TYPE_KEY 25

#define	GNUNET_DNSPARSER_TYPE_AAAA 28

#define	GNUNET_DNSPARSER_TYPE_LOC 29

#define	GNUNET_DNSPARSER_TYPE_SRV 33

#define	GNUNET_DNSPARSER_TYPE_NAPTR 35

#define	GNUNET_DNSPARSER_TYPE_KX 36

#define	GNUNET_DNSPARSER_TYPE_CERT 37

#define	GNUNET_DNSPARSER_TYPE_DNAME 39

#define	GNUNET_DNSPARSER_TYPE_APL 42

#define	GNUNET_DNSPARSER_TYPE_DS 43

#define	GNUNET_DNSPARSER_TYPE_SSHFP 44

#define	GNUNET_DNSPARSER_TYPE_IPSECKEY 45

#define	GNUNET_DNSPARSER_TYPE_RRSIG 46

#define	GNUNET_DNSPARSER_TYPE_NSEC 47

#define	GNUNET_DNSPARSER_TYPE_DNSKEY 48

#define	GNUNET_DNSPARSER_TYPE_DHCID 49

#define	GNUNET_DNSPARSER_TYPE_NSEC3 50

#define	GNUNET_DNSPARSER_TYPE_NSEC3PARAM 51

#define	GNUNET_DNSPARSER_TYPE_TLSA 52

#define	GNUNET_DNSPARSER_TYPE_SMIMEA 53

#define	GNUNET_DNSPARSER_TYPE_HIP 55

#define	GNUNET_DNSPARSER_TYPE_CDS 59

#define	GNUNET_DNSPARSER_TYPE_CDNSKEY 60

#define	GNUNET_DNSPARSER_TYPE_OPENPGPKEY 61

#define	GNUNET_DNSPARSER_TYPE_TKEY 249

#define	GNUNET_DNSPARSER_TYPE_TSIG 250

#define	GNUNET_DNSPARSER_TYPE_ALL 255

#define	GNUNET_DNSPARSER_TYPE_URI 256

#define	GNUNET_DNSPARSER_TYPE_CAA 257

#define	GNUNET_DNSPARSER_TYPE_TA 32768

Enumerations
enum	GNUNET_DNSPARSER_CertType { GNUNET_DNSPARSER_CERTTYPE_RESERVED = 0 , GNUNET_DNSPARSER_CERTTYPE_PKIX = 1 , GNUNET_DNSPARSER_CERTTYPE_SKPI = 2 , GNUNET_DNSPARSER_CERTTYPE_PGP = 3 , GNUNET_DNSPARSER_CERTTYPE_IPKIX = 4 , GNUNET_DNSPARSER_CERTTYPE_ISKPI = 5 , GNUNET_DNSPARSER_CERTTYPE_IPGP = 6 , GNUNET_DNSPARSER_CERTTYPE_ACPKIX = 7 , GNUNET_DNSPARSER_CERTTYPE_IACKPIX = 8 }
	DNS CERT types as defined in RFC 4398. More...

enum	GNUNET_DNSPARSER_CertAlgorithm { GNUNET_DNSPARSER_CERTALGO_UNDEFINED = 0 , GNUNET_DNSPARSER_CERTALGO_RSAMD5 = 1 , GNUNET_DNSPARSER_CERTALGO_DH = 2 , GNUNET_DNSPARSER_CERTALGO_DSASHA = 3 , GNUNET_DNSPARSER_CERTALGO_RSRVD4 = 4 , GNUNET_DNSPARSER_CERTALGO_RSASHA = 5 , GNUNET_DNSPARSER_CERTALGO_DSANSEC3 = 6 , GNUNET_DNSPARSER_CERTALGO_RSANSEC3 = 7 , GNUNET_DNSPARSER_CERTALGO_RSASHA256 = 8 , GNUNET_DNSPARSER_CERTALGO_RSRVD9 = 9 , GNUNET_DNSPARSER_CERTALGO_RSASHA512 = 10 , GNUNET_DNSPARSER_CERTALGO_GOST_R34 = 12 , GNUNET_DNSPARSER_CERTALGO_ECDSA_P256SHA256 = 13 , GNUNET_DNSPARSER_CERTALGO_ECDSA_P384SHA384 = 14 }
	DNSCERT algorithms as defined in http://www.iana.org/assignments/ dns-sec-alg-numbers/dns-sec-alg-numbers.xhtml, under dns-sec-alg-numbers-1. More...

Functions
int	GNUNET_DNSPARSER_check_label (const char *label)
	Check if a label in UTF-8 format can be coded into valid IDNA. More...

int	GNUNET_DNSPARSER_check_name (const char *name)
	Check if a hostname in UTF-8 format can be coded into valid IDNA. More...

struct GNUNET_DNSPARSER_Packet *	GNUNET_DNSPARSER_parse (const char *udp_payload, size_t udp_payload_length)
	Parse a UDP payload of a DNS packet in to a nice struct for further processing and manipulation. More...

void	GNUNET_DNSPARSER_free_packet (struct GNUNET_DNSPARSER_Packet *p)
	Free memory taken by a packet. More...

int	GNUNET_DNSPARSER_pack (const struct GNUNET_DNSPARSER_Packet p, uint16_t max, char buf, size_t buf_length)
	Given a DNS packet p, generate the corresponding UDP payload. More...

int	GNUNET_DNSPARSER_builder_add_name (char dst, size_t dst_len, size_t off, const char *name)
	Add a DNS name to the UDP packet at the given location, converting the name to IDNA notation as necessary. More...

int	GNUNET_DNSPARSER_builder_add_query (char dst, size_t dst_len, size_t off, const struct GNUNET_DNSPARSER_Query *query)
	Add a DNS query to the UDP packet at the given location. More...

int	GNUNET_DNSPARSER_builder_add_mx (char dst, size_t dst_len, size_t off, const struct GNUNET_DNSPARSER_MxRecord *mx)
	Add an MX record to the UDP packet at the given location. More...

int	GNUNET_DNSPARSER_builder_add_soa (char dst, size_t dst_len, size_t off, const struct GNUNET_DNSPARSER_SoaRecord *soa)
	Add an SOA record to the UDP packet at the given location. More...

int	GNUNET_DNSPARSER_builder_add_cert (char dst, size_t dst_len, size_t off, const struct GNUNET_DNSPARSER_CertRecord *cert)
	Add CERT record to the UDP packet at the given location. More...

int	GNUNET_DNSPARSER_builder_add_srv (char dst, size_t dst_len, size_t off, const struct GNUNET_DNSPARSER_SrvRecord *srv)
	Add an SRV record to the UDP packet at the given location. More...

int	GNUNET_DNSPARSER_builder_add_uri (char dst, size_t dst_len, size_t off, const struct GNUNET_DNSPARSER_UriRecord *uri)
	Add an URI record to the UDP packet at the given location. More...

int	GNUNET_DNSPARSER_parse_record (const char udp_payload, size_t udp_payload_length, size_t off, struct GNUNET_DNSPARSER_Record *r)
	Parse a DNS record entry. More...

char *	GNUNET_DNSPARSER_parse_name (const char udp_payload, size_t udp_payload_length, size_t off)
	Parse name inside of a DNS query or record. More...

int	GNUNET_DNSPARSER_parse_query (const char udp_payload, size_t udp_payload_length, size_t off, struct GNUNET_DNSPARSER_Query *q)
	Parse a DNS query entry. More...

struct GNUNET_DNSPARSER_SoaRecord *	GNUNET_DNSPARSER_parse_soa (const char udp_payload, size_t udp_payload_length, size_t off)
	Parse a DNS SOA record. More...

struct GNUNET_DNSPARSER_CertRecord *	GNUNET_DNSPARSER_parse_cert (const char udp_payload, size_t udp_payload_length, size_t off)
	Parse a DNS CERT record. More...

struct GNUNET_DNSPARSER_MxRecord *	GNUNET_DNSPARSER_parse_mx (const char udp_payload, size_t udp_payload_length, size_t off)
	Parse a DNS MX record. More...

struct GNUNET_DNSPARSER_SrvRecord *	GNUNET_DNSPARSER_parse_srv (const char udp_payload, size_t udp_payload_length, size_t off)
	Parse a DNS SRV record. More...

struct GNUNET_DNSPARSER_UriRecord *	GNUNET_DNSPARSER_parse_uri (const char udp_payload, size_t udp_payload_length, size_t off)
	Parse a DNS URI record. More...

struct GNUNET_DNSPARSER_Record *	GNUNET_DNSPARSER_duplicate_record (const struct GNUNET_DNSPARSER_Record *r)
	Duplicate (deep-copy) the given DNS record. More...

struct GNUNET_DNSPARSER_SoaRecord *	GNUNET_DNSPARSER_duplicate_soa_record (const struct GNUNET_DNSPARSER_SoaRecord *r)
	Duplicate (deep-copy) the given DNS record. More...

struct GNUNET_DNSPARSER_CertRecord *	GNUNET_DNSPARSER_duplicate_cert_record (const struct GNUNET_DNSPARSER_CertRecord *r)
	Duplicate (deep-copy) the given DNS record. More...

struct GNUNET_DNSPARSER_MxRecord *	GNUNET_DNSPARSER_duplicate_mx_record (const struct GNUNET_DNSPARSER_MxRecord *r)
	Duplicate (deep-copy) the given DNS record. More...

struct GNUNET_DNSPARSER_SrvRecord *	GNUNET_DNSPARSER_duplicate_srv_record (const struct GNUNET_DNSPARSER_SrvRecord *r)
	Duplicate (deep-copy) the given DNS record. More...

struct GNUNET_DNSPARSER_UriRecord *	GNUNET_DNSPARSER_duplicate_uri_record (const struct GNUNET_DNSPARSER_UriRecord *r)
	Duplicate (deep-copy) the given DNS record. More...

void	GNUNET_DNSPARSER_free_record (struct GNUNET_DNSPARSER_Record *r)
	Free the given DNS record. More...

void	GNUNET_DNSPARSER_free_mx (struct GNUNET_DNSPARSER_MxRecord *mx)
	Free MX information record. More...

void	GNUNET_DNSPARSER_free_srv (struct GNUNET_DNSPARSER_SrvRecord *srv)
	Free SRV information record. More...

void	GNUNET_DNSPARSER_free_uri (struct GNUNET_DNSPARSER_UriRecord *uri)
	Free URI information record. More...

void	GNUNET_DNSPARSER_free_soa (struct GNUNET_DNSPARSER_SoaRecord *soa)
	Free SOA information record. More...

void	GNUNET_DNSPARSER_free_cert (struct GNUNET_DNSPARSER_CertRecord *cert)
	Free CERT information record. More...

char *	GNUNET_DNSPARSER_bin_to_hex (const void *data, size_t data_size)
	Convert a block of binary data to HEX. More...

size_t	GNUNET_DNSPARSER_hex_to_bin (const char hex, void data)
	Convert a HEX string to block of binary data. More...

Detailed Description

API for helper library to parse DNS packets.

Definition in file gnunet_dnsparser_lib.h.

Data Structures

Macros

Enumerations

Functions

Detailed Description