Contains the definition of ldns_pkt and its parts, as well as functions to manipulate those. More...

Data Structures
struct	ldns_struct_hdr

struct	ldns_struct_pkt
	DNS packet. More...

Macros
#define	LDNS_MAX_PACKETLEN 65535

#define	LDNS_QR 1 /* Query Response flag */

#define	LDNS_AA 2 /* Authoritative Answer - server flag */

#define	LDNS_TC 4 /* TrunCated - server flag */

#define	LDNS_RD 8 /* Recursion Desired - query flag */

#define	LDNS_CD 16 /* Checking Disabled - query flag */

#define	LDNS_RA 32 /* Recursion Available - server flag */

#define	LDNS_AD 64 /* Authenticated Data - server flag */

Typedefs
typedef enum ldns_enum_pkt_opcode	ldns_pkt_opcode

typedef enum ldns_enum_pkt_rcode	ldns_pkt_rcode

typedef struct ldns_struct_hdr	ldns_hdr

typedef struct ldns_struct_pkt	ldns_pkt

typedef enum ldns_enum_pkt_section	ldns_pkt_section

typedef enum ldns_enum_pkt_type	ldns_pkt_type

Enumerations
enum	ldns_enum_pkt_opcode { LDNS_PACKET_QUERY = 0 , LDNS_PACKET_IQUERY = 1 , LDNS_PACKET_STATUS = 2 , LDNS_PACKET_NOTIFY = 4 , LDNS_PACKET_UPDATE = 5 }

enum	ldns_enum_pkt_rcode { LDNS_RCODE_NOERROR = 0 , LDNS_RCODE_FORMERR = 1 , LDNS_RCODE_SERVFAIL = 2 , LDNS_RCODE_NXDOMAIN = 3 , LDNS_RCODE_NOTIMPL = 4 , LDNS_RCODE_REFUSED = 5 , LDNS_RCODE_YXDOMAIN = 6 , LDNS_RCODE_YXRRSET = 7 , LDNS_RCODE_NXRRSET = 8 , LDNS_RCODE_NOTAUTH = 9 , LDNS_RCODE_NOTZONE = 10 }

enum	ldns_enum_pkt_section { LDNS_SECTION_QUESTION = 0 , LDNS_SECTION_ANSWER = 1 , LDNS_SECTION_AUTHORITY = 2 , LDNS_SECTION_ADDITIONAL = 3 , LDNS_SECTION_ANY = 4 , LDNS_SECTION_ANY_NOQUESTION = 5 }
	The sections of a packet. More...

enum	ldns_enum_pkt_type { LDNS_PACKET_QUESTION , LDNS_PACKET_REFERRAL , LDNS_PACKET_ANSWER , LDNS_PACKET_NXDOMAIN , LDNS_PACKET_NODATA , LDNS_PACKET_UNKNOWN }
	The different types of packets. More...

Functions
uint16_t	ldns_pkt_id (const ldns_pkt *p)
	Read the packet id. More...

signed char	ldns_pkt_qr (const ldns_pkt *p)
	Read the packet's qr bit. More...

signed char	ldns_pkt_aa (const ldns_pkt *p)
	Read the packet's aa bit. More...

signed char	ldns_pkt_tc (const ldns_pkt *p)
	Read the packet's tc bit. More...

signed char	ldns_pkt_rd (const ldns_pkt *p)
	Read the packet's rd bit. More...

signed char	ldns_pkt_cd (const ldns_pkt *p)
	Read the packet's cd bit. More...

signed char	ldns_pkt_ra (const ldns_pkt *p)
	Read the packet's ra bit. More...

signed char	ldns_pkt_ad (const ldns_pkt *p)
	Read the packet's ad bit. More...

ldns_pkt_opcode	ldns_pkt_get_opcode (const ldns_pkt *p)
	Read the packet's code. More...

ldns_pkt_rcode	ldns_pkt_get_rcode (const ldns_pkt *p)
	Return the packet's response code. More...

uint16_t	ldns_pkt_qdcount (const ldns_pkt *p)
	Return the packet's qd count. More...

uint16_t	ldns_pkt_ancount (const ldns_pkt *p)
	Return the packet's an count. More...

uint16_t	ldns_pkt_nscount (const ldns_pkt *p)
	Return the packet's ns count. More...

uint16_t	ldns_pkt_arcount (const ldns_pkt *p)
	Return the packet's ar count. More...

ldns_rdf *	ldns_pkt_answerfrom (const ldns_pkt *p)
	Return the packet's answerfrom. More...

struct timeval	ldns_pkt_timestamp (const ldns_pkt *p)
	Return the packet's timestamp. More...

uint32_t	ldns_pkt_querytime (const ldns_pkt *p)
	Return the packet's querytime. More...

size_t	ldns_pkt_size (const ldns_pkt *p)
	Return the packet's size in bytes. More...

uint16_t	ldns_pkt_section_count (const ldns_pkt *p, ldns_pkt_section s)
	Return the number of RRs in the given section. More...

ldns_rr *	ldns_pkt_tsig (const ldns_pkt *p)
	Return the packet's tsig pseudo rr's. More...

ldns_rr_list *	ldns_pkt_question (const ldns_pkt *p)
	Return the packet's question section. More...

ldns_rr_list *	ldns_pkt_answer (const ldns_pkt *p)
	Return the packet's answer section. More...

ldns_rr_list *	ldns_pkt_authority (const ldns_pkt *p)
	Return the packet's authority section. More...

ldns_rr_list *	ldns_pkt_additional (const ldns_pkt *p)
	Return the packet's additional section. More...

ldns_rr_list *	ldns_pkt_all (const ldns_pkt *p)
	Return the packet's question, answer, authority and additional sections concatenated, in a new rr_list clone. More...

ldns_rr_list *	ldns_pkt_all_noquestion (const ldns_pkt *p)
	Return the packet's answer, authority and additional sections concatenated, in a new rr_list clone. More...

ldns_rr_list *	ldns_pkt_get_section_clone (const ldns_pkt *p, ldns_pkt_section s)
	return all the rr_list's in the packet. More...

ldns_rr_list *	ldns_pkt_rr_list_by_name (const ldns_pkt p, const ldns_rdf r, ldns_pkt_section s)
	return all the rr with a specific name from a packet. More...

ldns_rr_list *	ldns_pkt_rr_list_by_type (const ldns_pkt *p, ldns_rr_type t, ldns_pkt_section s)
	return all the rr with a specific type from a packet. More...

ldns_rr_list *	ldns_pkt_rr_list_by_name_and_type (const ldns_pkt packet, const ldns_rdf ownername, ldns_rr_type type, ldns_pkt_section sec)
	return all the rr with a specific type and type from a packet. More...

signed char	ldns_pkt_rr (const ldns_pkt pkt, ldns_pkt_section sec, const ldns_rr rr)
	check to see if an rr exist in the packet More...

signed char	ldns_pkt_set_flags (ldns_pkt *pkt, uint16_t flags)
	sets the flags in a packet. More...

void	ldns_pkt_set_id (ldns_pkt *p, uint16_t id)
	Set the packet's id. More...

void	ldns_pkt_set_random_id (ldns_pkt *p)
	Set the packet's id to a random value. More...

void	ldns_pkt_set_qr (ldns_pkt *p, signed char b)
	Set the packet's qr bit. More...

void	ldns_pkt_set_aa (ldns_pkt *p, signed char b)
	Set the packet's aa bit. More...

void	ldns_pkt_set_tc (ldns_pkt *p, signed char b)
	Set the packet's tc bit. More...

void	ldns_pkt_set_rd (ldns_pkt *p, signed char b)
	Set the packet's rd bit. More...

void	ldns_pkt_set_cd (ldns_pkt *p, signed char b)
	Set the packet's cd bit. More...

void	ldns_pkt_set_ra (ldns_pkt *p, signed char b)
	Set the packet's ra bit. More...

void	ldns_pkt_set_ad (ldns_pkt *p, signed char b)
	Set the packet's ad bit. More...

void	ldns_pkt_set_opcode (ldns_pkt *p, ldns_pkt_opcode c)
	Set the packet's opcode. More...

void	ldns_pkt_set_rcode (ldns_pkt *p, uint8_t c)
	Set the packet's response code. More...

void	ldns_pkt_set_qdcount (ldns_pkt *p, uint16_t c)
	Set the packet's qd count. More...

void	ldns_pkt_set_ancount (ldns_pkt *p, uint16_t c)
	Set the packet's an count. More...

void	ldns_pkt_set_nscount (ldns_pkt *p, uint16_t c)
	Set the packet's ns count. More...

void	ldns_pkt_set_arcount (ldns_pkt *p, uint16_t c)
	Set the packet's arcount. More...

void	ldns_pkt_set_answerfrom (ldns_pkt p, ldns_rdf r)
	Set the packet's answering server. More...

void	ldns_pkt_set_querytime (ldns_pkt *p, uint32_t t)
	Set the packet's query time. More...

void	ldns_pkt_set_size (ldns_pkt *p, size_t s)
	Set the packet's size. More...

void	ldns_pkt_set_timestamp (ldns_pkt *p, struct timeval timeval)
	Set the packet's timestamp. More...

void	ldns_pkt_set_section_count (ldns_pkt *p, ldns_pkt_section s, uint16_t x)
	Set a packet's section count to x. More...

void	ldns_pkt_set_tsig (ldns_pkt p, ldns_rr t)
	Set the packet's tsig rr. More...

ldns_pkt_type	ldns_pkt_reply_type (const ldns_pkt *p)
	looks inside the packet to determine what kind of packet it is, AUTH, NXDOMAIN, REFERRAL, etc. More...

uint16_t	ldns_pkt_edns_udp_size (const ldns_pkt *packet)
	return the packet's edns udp size More...

uint8_t	ldns_pkt_edns_extended_rcode (const ldns_pkt *packet)
	return the packet's edns extended rcode More...

uint8_t	ldns_pkt_edns_version (const ldns_pkt *packet)
	return the packet's edns version More...

uint16_t	ldns_pkt_edns_z (const ldns_pkt *packet)
	return the packet's edns z value More...

ldns_rdf *	ldns_pkt_edns_data (const ldns_pkt *packet)
	return the packet's EDNS data More...

signed char	ldns_pkt_edns_do (const ldns_pkt *packet)
	return the packet's edns do bit More...

void	ldns_pkt_set_edns_do (ldns_pkt *packet, signed char value)
	Set the packet's edns do bit. More...

uint16_t	ldns_pkt_edns_unassigned (const ldns_pkt *packet)
	return the packet's EDNS header bits that are unassigned. More...

void	ldns_pkt_set_edns_unassigned (ldns_pkt *packet, uint16_t value)
	Set the packet's EDNS header bits that are unassigned. More...

signed char	ldns_pkt_edns (const ldns_pkt *packet)
	returns true if this packet needs and EDNS rr to be sent. More...

ldns_edns_option_list *	ldns_pkt_edns_get_option_list (ldns_pkt *packet)
	Returns a list of structured EDNS options. More...

void	ldns_pkt_set_edns_udp_size (ldns_pkt *packet, uint16_t s)
	Set the packet's edns udp size. More...

void	ldns_pkt_set_edns_extended_rcode (ldns_pkt *packet, uint8_t c)
	Set the packet's edns extended rcode. More...

void	ldns_pkt_set_edns_version (ldns_pkt *packet, uint8_t v)
	Set the packet's edns version. More...

void	ldns_pkt_set_edns_z (ldns_pkt *packet, uint16_t z)
	Set the packet's edns z value. More...

void	ldns_pkt_set_edns_data (ldns_pkt packet, ldns_rdf data)
	Set the packet's EDNS data. More...

void	ldns_pkt_set_edns_option_list (ldns_pkt packet, ldns_edns_option_list list)
	Set the packet's structured EDNS data. More...

ldns_pkt *	ldns_pkt_new (void)
	allocates and initializes a ldns_pkt structure. More...

void	ldns_pkt_free (ldns_pkt *packet)
	frees the packet structure and all data that it contains. More...

ldns_status	ldns_pkt_query_new_frm_str (ldns_pkt *p, const char rr_name, ldns_rr_type rr_type, ldns_rr_class rr_class, uint16_t flags)
	creates a query packet for the given name, type, class. More...

ldns_status	ldns_pkt_ixfr_request_new_frm_str (ldns_pkt *p, const char rr_name, ldns_rr_class rr_class, uint16_t flags, ldns_rr *soa)
	creates an IXFR request packet for the given name, class. More...

ldns_pkt *	ldns_pkt_query_new (ldns_rdf *rr_name, ldns_rr_type rr_type, ldns_rr_class rr_class, uint16_t flags)
	creates a packet with a query in it for the given name, type and class. More...

ldns_pkt *	ldns_pkt_ixfr_request_new (ldns_rdf rr_name, ldns_rr_class rr_class, uint16_t flags, ldns_rr soa)
	creates an IXFR request packet for the given name, type and class. More...

ldns_pkt *	ldns_pkt_clone (const ldns_pkt *pkt)
	clones the given packet, creating a fully allocated copy More...

void	ldns_pkt_set_additional (ldns_pkt p, ldns_rr_list rr)
	directly set the additional section More...

void	ldns_pkt_set_answer (ldns_pkt p, ldns_rr_list rr)
	directly set the answer section More...

void	ldns_pkt_set_question (ldns_pkt p, ldns_rr_list rr)
	directly set the question section More...

void	ldns_pkt_set_authority (ldns_pkt p, ldns_rr_list rr)
	directly set the authority section More...

signed char	ldns_pkt_push_rr (ldns_pkt packet, ldns_pkt_section section, ldns_rr rr)
	push an rr on a packet More...

signed char	ldns_pkt_safe_push_rr (ldns_pkt pkt, ldns_pkt_section sec, ldns_rr rr)
	push an rr on a packet, provided the RR is not there. More...

signed char	ldns_pkt_push_rr_list (ldns_pkt packet, ldns_pkt_section section, ldns_rr_list list)
	push a rr_list on a packet More...

signed char	ldns_pkt_safe_push_rr_list (ldns_pkt pkt, ldns_pkt_section sec, ldns_rr_list list)
	push an rr_list to a packet, provided the RRs are not already there. More...

signed char	ldns_pkt_empty (ldns_pkt *p)
	check if a packet is empty More...

Detailed Description

Contains the definition of ldns_pkt and its parts, as well as functions to manipulate those.

Definition in file packet.h.

Macro Definition Documentation

◆ LDNS_MAX_PACKETLEN

#define LDNS_MAX_PACKETLEN 65535

Definition at line 24 of file packet.h.

◆ LDNS_QR

#define LDNS_QR 1 /* Query Response flag */

Definition at line 27 of file packet.h.

◆ LDNS_AA

#define LDNS_AA 2 /* Authoritative Answer - server flag */

Definition at line 28 of file packet.h.

◆ LDNS_TC

#define LDNS_TC 4 /* TrunCated - server flag */

Definition at line 29 of file packet.h.

◆ LDNS_RD

#define LDNS_RD 8 /* Recursion Desired - query flag */

Definition at line 30 of file packet.h.

◆ LDNS_CD

#define LDNS_CD 16 /* Checking Disabled - query flag */

Definition at line 31 of file packet.h.

◆ LDNS_RA

#define LDNS_RA 32 /* Recursion Available - server flag */

Definition at line 32 of file packet.h.

◆ LDNS_AD

#define LDNS_AD 64 /* Authenticated Data - server flag */

Definition at line 33 of file packet.h.