Contains the definition of ldns_pkt and its parts, as well as functions to manipulate those. More...
Go to the source code of this file.
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... | |
bool | ldns_pkt_qr (const ldns_pkt *p) |
Read the packet's qr bit. More... | |
bool | ldns_pkt_aa (const ldns_pkt *p) |
Read the packet's aa bit. More... | |
bool | ldns_pkt_tc (const ldns_pkt *p) |
Read the packet's tc bit. More... | |
bool | ldns_pkt_rd (const ldns_pkt *p) |
Read the packet's rd bit. More... | |
bool | ldns_pkt_cd (const ldns_pkt *p) |
Read the packet's cd bit. More... | |
bool | ldns_pkt_ra (const ldns_pkt *p) |
Read the packet's ra bit. More... | |
bool | 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... | |
bool | 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... | |
bool | 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, bool b) |
Set the packet's qr bit. More... | |
void | ldns_pkt_set_aa (ldns_pkt *p, bool b) |
Set the packet's aa bit. More... | |
void | ldns_pkt_set_tc (ldns_pkt *p, bool b) |
Set the packet's tc bit. More... | |
void | ldns_pkt_set_rd (ldns_pkt *p, bool b) |
Set the packet's rd bit. More... | |
void | ldns_pkt_set_cd (ldns_pkt *p, bool b) |
Set the packet's cd bit. More... | |
void | ldns_pkt_set_ra (ldns_pkt *p, bool b) |
Set the packet's ra bit. More... | |
void | ldns_pkt_set_ad (ldns_pkt *p, bool 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... | |
bool | 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, bool 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... | |
bool | 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... | |
bool | ldns_pkt_push_rr (ldns_pkt *packet, ldns_pkt_section section, ldns_rr *rr) |
push an rr on a packet More... | |
bool | 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... | |
bool | ldns_pkt_push_rr_list (ldns_pkt *packet, ldns_pkt_section section, ldns_rr_list *list) |
push a rr_list on a packet More... | |
bool | 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... | |
bool | ldns_pkt_empty (ldns_pkt *p) |
check if a packet is empty More... | |
Contains the definition of ldns_pkt and its parts, as well as functions to manipulate those.
Definition in file packet.h.
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 |
enum ldns_enum_pkt_opcode |
enum ldns_enum_pkt_rcode |
enum ldns_enum_pkt_type |
uint16_t ldns_pkt_id | ( | const ldns_pkt * | p | ) |
Read the packet id.
[in] | p | the packet |
Definition at line 40 of file packet.c.
References ldns_struct_pkt::_header, and ldns_struct_hdr::_id.
Read the packet's qr bit.
[in] | p | the packet |
Definition at line 46 of file packet.c.
References ldns_struct_pkt::_header, and ldns_struct_hdr::_qr.
Read the packet's aa bit.
[in] | p | the packet |
Definition at line 52 of file packet.c.
References ldns_struct_hdr::_aa, and ldns_struct_pkt::_header.
Read the packet's tc bit.
[in] | p | the packet |
Definition at line 58 of file packet.c.
References ldns_struct_pkt::_header, and ldns_struct_hdr::_tc.
Read the packet's rd bit.
[in] | p | the packet |
Definition at line 64 of file packet.c.
References ldns_struct_pkt::_header, and ldns_struct_hdr::_rd.
Read the packet's cd bit.
[in] | p | the packet |
Definition at line 70 of file packet.c.
References ldns_struct_hdr::_cd, and ldns_struct_pkt::_header.
Read the packet's ra bit.
[in] | p | the packet |
Definition at line 76 of file packet.c.
References ldns_struct_pkt::_header, and ldns_struct_hdr::_ra.
Read the packet's ad bit.
[in] | p | the packet |
Definition at line 82 of file packet.c.
References ldns_struct_hdr::_ad, and ldns_struct_pkt::_header.
ldns_pkt_opcode ldns_pkt_get_opcode | ( | const ldns_pkt * | p | ) |
Read the packet's code.
[in] | p | the packet |
Definition at line 88 of file packet.c.
References ldns_struct_pkt::_header, and ldns_struct_hdr::_opcode.
ldns_pkt_rcode ldns_pkt_get_rcode | ( | const ldns_pkt * | p | ) |
Return the packet's response code.
[in] | p | the packet |
Definition at line 94 of file packet.c.
References ldns_struct_pkt::_header, and ldns_struct_hdr::_rcode.
uint16_t ldns_pkt_qdcount | ( | const ldns_pkt * | p | ) |
Return the packet's qd count.
[in] | p | the packet |
Definition at line 100 of file packet.c.
References ldns_struct_pkt::_header, and ldns_struct_hdr::_qdcount.
uint16_t ldns_pkt_ancount | ( | const ldns_pkt * | p | ) |
Return the packet's an count.
[in] | p | the packet |
Definition at line 106 of file packet.c.
References ldns_struct_hdr::_ancount, and ldns_struct_pkt::_header.
uint16_t ldns_pkt_nscount | ( | const ldns_pkt * | p | ) |
Return the packet's ns count.
[in] | p | the packet |
Definition at line 112 of file packet.c.
References ldns_struct_pkt::_header, and ldns_struct_hdr::_nscount.
uint16_t ldns_pkt_arcount | ( | const ldns_pkt * | p | ) |
Return the packet's ar count.
[in] | p | the packet |
Definition at line 118 of file packet.c.
References ldns_struct_hdr::_arcount, and ldns_struct_pkt::_header.
Return the packet's answerfrom.
[in] | p | packet |
Definition at line 195 of file packet.c.
References ldns_struct_pkt::_answerfrom.
struct timeval ldns_pkt_timestamp | ( | const ldns_pkt * | p | ) |
uint32_t ldns_pkt_querytime | ( | const ldns_pkt * | p | ) |
Return the packet's querytime.
[in] | p | the packet |
Definition at line 189 of file packet.c.
References ldns_struct_pkt::_querytime.
size_t ldns_pkt_size | ( | const ldns_pkt * | p | ) |
Return the packet's size in bytes.
[in] | p | the packet |
Definition at line 183 of file packet.c.
References ldns_struct_pkt::_size.
uint16_t ldns_pkt_section_count | ( | const ldns_pkt * | p, |
ldns_pkt_section | s | ||
) |
Return the number of RRs in the given section.
Returns the sum of all RRs when LDNS_SECTION_ANY is given. Returns the sum of all non-question RRs when LDNS_SECTION_ANY_NOQUESTION is given.
[in] | p | the packet |
[in] | s | the section |
Definition at line 404 of file packet.c.
References ldns_pkt_ancount(), ldns_pkt_arcount(), ldns_pkt_nscount(), ldns_pkt_qdcount(), LDNS_SECTION_ADDITIONAL, LDNS_SECTION_ANSWER, LDNS_SECTION_ANY, LDNS_SECTION_ANY_NOQUESTION, LDNS_SECTION_AUTHORITY, and LDNS_SECTION_QUESTION.
Return the packet's tsig pseudo rr's.
[in] | p | the packet |
Definition at line 465 of file packet.c.
References ldns_struct_pkt::_tsig_rr.
ldns_rr_list* ldns_pkt_question | ( | const ldns_pkt * | p | ) |
Return the packet's question section.
[in] | p | the packet |
Definition at line 124 of file packet.c.
References ldns_struct_pkt::_question.
ldns_rr_list* ldns_pkt_answer | ( | const ldns_pkt * | p | ) |
Return the packet's answer section.
[in] | p | the packet |
Definition at line 130 of file packet.c.
References ldns_struct_pkt::_answer.
ldns_rr_list* ldns_pkt_authority | ( | const ldns_pkt * | p | ) |
Return the packet's authority section.
[in] | p | the packet |
Definition at line 136 of file packet.c.
References ldns_struct_pkt::_authority.
ldns_rr_list* ldns_pkt_additional | ( | const ldns_pkt * | p | ) |
Return the packet's additional section.
[in] | p | the packet |
Definition at line 142 of file packet.c.
References ldns_struct_pkt::_additional.
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.
[in] | p | the packet |
Definition at line 149 of file packet.c.
References ldns_pkt_additional(), ldns_pkt_answer(), ldns_pkt_authority(), ldns_pkt_question(), ldns_rr_list_cat_clone(), and ldns_rr_list_deep_free().
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.
Like ldns_pkt_all but without the questions.
[in] | p | the packet |
Definition at line 168 of file packet.c.
References ldns_pkt_additional(), ldns_pkt_answer(), ldns_pkt_authority(), ldns_rr_list_cat_clone(), and ldns_rr_list_deep_free().
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.
Clone the lists, instead of returning pointers.
[in] | p | the packet to look in |
[in] | s | what section(s) to return |
Definition at line 444 of file packet.c.
References ldns_pkt_additional(), ldns_pkt_all(), ldns_pkt_all_noquestion(), ldns_pkt_answer(), ldns_pkt_authority(), ldns_pkt_question(), ldns_rr_list_clone(), LDNS_SECTION_ADDITIONAL, LDNS_SECTION_ANSWER, LDNS_SECTION_ANY, LDNS_SECTION_ANY_NOQUESTION, LDNS_SECTION_AUTHORITY, and LDNS_SECTION_QUESTION.
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.
Optionally specify from which section in the packet
[in] | p | the packet |
[in] | r | the name |
[in] | s | the packet's section |
Definition at line 267 of file packet.c.
References ldns_dname_compare(), ldns_pkt_get_section_clone(), ldns_rr_clone(), ldns_rr_list_deep_free(), ldns_rr_list_new(), ldns_rr_list_push_rr(), ldns_rr_list_rr(), ldns_rr_list_rr_count(), and ldns_rr_owner().
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.
Optionally specify from which section in the packet
[in] | p | the packet |
[in] | t | the type |
[in] | s | the packet's section |
Definition at line 304 of file packet.c.
References ldns_pkt_get_section_clone(), ldns_rr_clone(), ldns_rr_get_type(), ldns_rr_list_deep_free(), ldns_rr_list_free(), ldns_rr_list_new(), ldns_rr_list_push_rr(), ldns_rr_list_rr(), and ldns_rr_list_rr_count().
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.
Optionally specify from which section in the packet
[in] | packet | the packet |
[in] | ownername | the name |
[in] | type | the type |
[in] | sec | the packet's section |
Definition at line 340 of file packet.c.
References ldns_dname_compare(), ldns_pkt_get_section_clone(), ldns_rr_clone(), ldns_rr_get_type(), ldns_rr_list_deep_free(), ldns_rr_list_free(), ldns_rr_list_new(), ldns_rr_list_push_rr(), ldns_rr_list_rr(), ldns_rr_list_rr_count(), and ldns_rr_owner().
bool 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
[in] | pkt | the packet to examine |
[in] | sec | in which section to look |
[in] | rr | the rr to look for |
Definition at line 377 of file packet.c.
References ldns_pkt_additional(), ldns_pkt_answer(), ldns_pkt_authority(), ldns_pkt_question(), ldns_rr_list_contains_rr(), LDNS_SECTION_ADDITIONAL, LDNS_SECTION_ANSWER, LDNS_SECTION_ANY, LDNS_SECTION_ANY_NOQUESTION, LDNS_SECTION_AUTHORITY, and LDNS_SECTION_QUESTION.
sets the flags in a packet.
[in] | pkt | the packet to operate on |
[in] | flags | ORed values: LDNS_QR| LDNS_AR for instance |
Definition at line 912 of file packet.c.
References LDNS_AA, LDNS_AD, LDNS_CD, ldns_pkt_set_aa(), ldns_pkt_set_ad(), ldns_pkt_set_cd(), ldns_pkt_set_qr(), ldns_pkt_set_ra(), ldns_pkt_set_rd(), ldns_pkt_set_tc(), LDNS_QR, LDNS_RA, LDNS_RD, and LDNS_TC.
void ldns_pkt_set_id | ( | ldns_pkt * | p, |
uint16_t | id | ||
) |
Set the packet's id.
[in] | p | the packet |
[in] | id | the id to set |
Definition at line 471 of file packet.c.
References ldns_struct_pkt::_header, and ldns_struct_hdr::_id.
void ldns_pkt_set_random_id | ( | ldns_pkt * | p | ) |
Set the packet's id to a random value.
[in] | p | the packet |
Definition at line 477 of file packet.c.
References ldns_get_random(), and ldns_pkt_set_id().
Set the packet's qr bit.
[in] | p | the packet |
[in] | b | the value to set (boolean) |
Definition at line 485 of file packet.c.
References ldns_struct_pkt::_header, and ldns_struct_hdr::_qr.
Set the packet's aa bit.
[in] | p | the packet |
[in] | b | the value to set (boolean) |
Definition at line 491 of file packet.c.
References ldns_struct_hdr::_aa, and ldns_struct_pkt::_header.
Set the packet's tc bit.
[in] | p | the packet |
[in] | b | the value to set (boolean) |
Definition at line 497 of file packet.c.
References ldns_struct_pkt::_header, and ldns_struct_hdr::_tc.
Set the packet's rd bit.
[in] | p | the packet |
[in] | b | the value to set (boolean) |
Definition at line 503 of file packet.c.
References ldns_struct_pkt::_header, and ldns_struct_hdr::_rd.
Set the packet's cd bit.
[in] | p | the packet |
[in] | b | the value to set (boolean) |
Definition at line 533 of file packet.c.
References ldns_struct_hdr::_cd, and ldns_struct_pkt::_header.
Set the packet's ra bit.
[in] | p | the packet |
[in] | b | the value to set (boolean) |
Definition at line 539 of file packet.c.
References ldns_struct_pkt::_header, and ldns_struct_hdr::_ra.
Set the packet's ad bit.
[in] | p | the packet |
[in] | b | the value to set (boolean) |
Definition at line 545 of file packet.c.
References ldns_struct_hdr::_ad, and ldns_struct_pkt::_header.
void ldns_pkt_set_opcode | ( | ldns_pkt * | p, |
ldns_pkt_opcode | c | ||
) |
Set the packet's opcode.
[in] | p | the packet |
[in] | c | the opcode |
Definition at line 551 of file packet.c.
References ldns_struct_pkt::_header, and ldns_struct_hdr::_opcode.
void ldns_pkt_set_rcode | ( | ldns_pkt * | p, |
uint8_t | c | ||
) |
Set the packet's response code.
[in] | p | the packet |
[in] | c | the rcode |
Definition at line 557 of file packet.c.
References ldns_struct_pkt::_header, and ldns_struct_hdr::_rcode.
void ldns_pkt_set_qdcount | ( | ldns_pkt * | p, |
uint16_t | c | ||
) |
Set the packet's qd count.
[in] | p | the packet |
[in] | c | the count |
Definition at line 563 of file packet.c.
References ldns_struct_pkt::_header, and ldns_struct_hdr::_qdcount.
void ldns_pkt_set_ancount | ( | ldns_pkt * | p, |
uint16_t | c | ||
) |
Set the packet's an count.
[in] | p | the packet |
[in] | c | the count |
Definition at line 569 of file packet.c.
References ldns_struct_hdr::_ancount, and ldns_struct_pkt::_header.
void ldns_pkt_set_nscount | ( | ldns_pkt * | p, |
uint16_t | c | ||
) |
Set the packet's ns count.
[in] | p | the packet |
[in] | c | the count |
Definition at line 575 of file packet.c.
References ldns_struct_pkt::_header, and ldns_struct_hdr::_nscount.
void ldns_pkt_set_arcount | ( | ldns_pkt * | p, |
uint16_t | c | ||
) |
Set the packet's arcount.
[in] | p | the packet |
[in] | c | the count |
Definition at line 581 of file packet.c.
References ldns_struct_hdr::_arcount, and ldns_struct_pkt::_header.
Set the packet's answering server.
[in] | p | the packet |
[in] | r | the address |
Definition at line 593 of file packet.c.
References ldns_struct_pkt::_answerfrom.
void ldns_pkt_set_querytime | ( | ldns_pkt * | p, |
uint32_t | t | ||
) |
Set the packet's query time.
[in] | p | the packet |
[in] | t | the querytime in msec |
Definition at line 587 of file packet.c.
References ldns_struct_pkt::_querytime.
void ldns_pkt_set_size | ( | ldns_pkt * | p, |
size_t | s | ||
) |
Set the packet's size.
[in] | p | the packet |
[in] | s | the size |
Definition at line 606 of file packet.c.
References ldns_struct_pkt::_size.
void ldns_pkt_set_timestamp | ( | ldns_pkt * | p, |
struct timeval | timeval | ||
) |
Set the packet's timestamp.
[in] | p | the packet |
[in] | timeval | the timestamp |
Definition at line 599 of file packet.c.
References ldns_struct_pkt::timestamp.
void ldns_pkt_set_section_count | ( | ldns_pkt * | p, |
ldns_pkt_section | s, | ||
uint16_t | x | ||
) |
Set a packet's section count to x.
[in] | p | the packet |
[in] | s | the section |
[in] | x | the section count |
Definition at line 651 of file packet.c.
References ldns_pkt_set_ancount(), ldns_pkt_set_arcount(), ldns_pkt_set_nscount(), ldns_pkt_set_qdcount(), LDNS_SECTION_ADDITIONAL, LDNS_SECTION_ANSWER, LDNS_SECTION_ANY, LDNS_SECTION_ANY_NOQUESTION, LDNS_SECTION_AUTHORITY, and LDNS_SECTION_QUESTION.
Set the packet's tsig rr.
[in] | p | the packet |
[in] | t | the tsig rr |
Definition at line 672 of file packet.c.
References ldns_struct_pkt::_tsig_rr.
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.
[in] | p | the packet to examine |
Definition at line 1168 of file packet.c.
References LDNS_PACKET_ANSWER, LDNS_PACKET_NODATA, LDNS_PACKET_NXDOMAIN, LDNS_PACKET_REFERRAL, LDNS_PACKET_UNKNOWN, ldns_pkt_ancount(), ldns_pkt_arcount(), ldns_pkt_get_rcode(), ldns_pkt_nscount(), ldns_pkt_rr_list_by_type(), LDNS_RCODE_NXDOMAIN, ldns_rr_list_deep_free(), LDNS_RR_TYPE_NS, LDNS_RR_TYPE_SOA, and LDNS_SECTION_AUTHORITY.
uint16_t ldns_pkt_edns_udp_size | ( | const ldns_pkt * | packet | ) |
return the packet's edns udp size
[in] | packet | the packet |
Definition at line 207 of file packet.c.
References ldns_struct_pkt::_edns_udp_size.
uint8_t ldns_pkt_edns_extended_rcode | ( | const ldns_pkt * | packet | ) |
return the packet's edns extended rcode
[in] | packet | the packet |
Definition at line 213 of file packet.c.
References ldns_struct_pkt::_edns_extended_rcode.
uint8_t ldns_pkt_edns_version | ( | const ldns_pkt * | packet | ) |
return the packet's edns version
[in] | packet | the packet |
Definition at line 219 of file packet.c.
References ldns_struct_pkt::_edns_version.
uint16_t ldns_pkt_edns_z | ( | const ldns_pkt * | packet | ) |
return the packet's edns z value
[in] | packet | the packet |
Definition at line 225 of file packet.c.
References ldns_struct_pkt::_edns_z.
return the packet's EDNS data
[in] | packet | the packet |
Definition at line 260 of file packet.c.
References ldns_struct_pkt::_edns_data.
return the packet's edns do bit
[in] | packet | the packet |
Definition at line 231 of file packet.c.
References ldns_struct_pkt::_edns_z, and LDNS_EDNS_MASK_DO_BIT.
Set the packet's edns do bit.
[in] | packet | the packet |
[in] | value | the bit's new value |
Definition at line 237 of file packet.c.
References ldns_struct_pkt::_edns_z, and LDNS_EDNS_MASK_DO_BIT.
uint16_t ldns_pkt_edns_unassigned | ( | const ldns_pkt * | packet | ) |
return the packet's EDNS header bits that are unassigned.
Definition at line 247 of file packet.c.
References ldns_struct_pkt::_edns_z, and LDNS_EDNS_MASK_UNASSIGNED.
void ldns_pkt_set_edns_unassigned | ( | ldns_pkt * | packet, |
uint16_t | value | ||
) |
Set the packet's EDNS header bits that are unassigned.
[in] | packet | the packet |
[in] | value | the value |
Definition at line 253 of file packet.c.
References ldns_struct_pkt::_edns_z, and LDNS_EDNS_MASK_UNASSIGNED.
returns true if this packet needs and EDNS rr to be sent.
At the moment the only reason is an expected packet size larger than 512 bytes, but for instance dnssec would be a good reason too.
[in] | packet | the packet to check |
Definition at line 750 of file packet.c.
References ldns_struct_pkt::_edns_list, ldns_struct_pkt::_edns_present, ldns_pkt_edns_data(), ldns_pkt_edns_do(), ldns_pkt_edns_extended_rcode(), and ldns_pkt_edns_udp_size().
ldns_edns_option_list* ldns_pkt_edns_get_option_list | ( | ldns_pkt * | packet | ) |
Returns a list of structured EDNS options.
The list will be automatically freed when the packet is freed. The option list can be manipulated and will be used when converting the packet to wireformat with ldns_pkt2wire.
[in] | packet | the packet which contains the EDNS data |
Definition at line 821 of file packet.c.
References ldns_struct_pkt::_edns_list, ldns_pkt_edns_data(), and pkt_edns_data2edns_option_list().
void ldns_pkt_set_edns_udp_size | ( | ldns_pkt * | packet, |
uint16_t | s | ||
) |
Set the packet's edns udp size.
[in] | packet | the packet |
[in] | s | the size |
Definition at line 612 of file packet.c.
References ldns_struct_pkt::_edns_udp_size.
void ldns_pkt_set_edns_extended_rcode | ( | ldns_pkt * | packet, |
uint8_t | c | ||
) |
Set the packet's edns extended rcode.
[in] | packet | the packet |
[in] | c | the code |
Definition at line 618 of file packet.c.
References ldns_struct_pkt::_edns_extended_rcode.
void ldns_pkt_set_edns_version | ( | ldns_pkt * | packet, |
uint8_t | v | ||
) |
Set the packet's edns version.
[in] | packet | the packet |
[in] | v | the version |
Definition at line 624 of file packet.c.
References ldns_struct_pkt::_edns_version.
void ldns_pkt_set_edns_z | ( | ldns_pkt * | packet, |
uint16_t | z | ||
) |
Set the packet's edns z value.
[in] | packet | the packet |
[in] | z | the value |
Definition at line 630 of file packet.c.
References ldns_struct_pkt::_edns_z.
Set the packet's EDNS data.
[in] | packet | the packet |
[in] | data | the data |
Definition at line 636 of file packet.c.
References ldns_struct_pkt::_edns_data.
void ldns_pkt_set_edns_option_list | ( | ldns_pkt * | packet, |
ldns_edns_option_list * | list | ||
) |
Set the packet's structured EDNS data.
Once an edns_option_list is set (or get), the option list will be used for converting into wireformat.
[in] | packet | the packet |
[in] | list | the options list that will create the data |
Definition at line 642 of file packet.c.
References ldns_struct_pkt::_edns_list, and ldns_edns_option_list_deep_free().
ldns_pkt* ldns_pkt_new | ( | void | ) |
allocates and initializes a ldns_pkt structure.
Definition at line 841 of file packet.c.
References ldns_struct_pkt::_additional, ldns_struct_pkt::_answer, ldns_struct_pkt::_authority, ldns_struct_pkt::_edns_list, ldns_struct_pkt::_edns_present, ldns_struct_pkt::_header, ldns_struct_pkt::_question, LDNS_FREE, LDNS_MALLOC, LDNS_PACKET_QUERY, ldns_pkt_set_aa(), ldns_pkt_set_ad(), ldns_pkt_set_answerfrom(), ldns_pkt_set_cd(), ldns_pkt_set_edns_data(), ldns_pkt_set_edns_extended_rcode(), ldns_pkt_set_edns_udp_size(), ldns_pkt_set_edns_version(), ldns_pkt_set_edns_z(), ldns_pkt_set_id(), ldns_pkt_set_opcode(), ldns_pkt_set_qr(), ldns_pkt_set_querytime(), ldns_pkt_set_ra(), ldns_pkt_set_rcode(), ldns_pkt_set_rd(), ldns_pkt_set_section_count(), ldns_pkt_set_size(), ldns_pkt_set_tc(), ldns_pkt_set_tsig(), ldns_rr_list_new(), LDNS_SECTION_ADDITIONAL, LDNS_SECTION_ANSWER, LDNS_SECTION_AUTHORITY, LDNS_SECTION_QUESTION, and ldns_struct_pkt::timestamp.
void ldns_pkt_free | ( | ldns_pkt * | packet | ) |
frees the packet structure and all data that it contains.
[in] | packet | The packet structure to free |
Definition at line 895 of file packet.c.
References ldns_struct_pkt::_additional, ldns_struct_pkt::_answer, ldns_struct_pkt::_answerfrom, ldns_struct_pkt::_authority, ldns_struct_pkt::_edns_data, ldns_struct_pkt::_edns_list, ldns_struct_pkt::_header, ldns_struct_pkt::_question, ldns_struct_pkt::_tsig_rr, ldns_edns_option_list_deep_free(), LDNS_FREE, ldns_rdf_deep_free(), ldns_rr_free(), and ldns_rr_list_deep_free().
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.
[out] | p | the packet to be returned |
[in] | rr_name | the name to query for (as string) |
[in] | rr_type | the type to query for |
[in] | rr_class | the class to query for |
[in] | flags | packet flags |
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.
adds the SOA record to the authority section.
[out] | p | the packet to be returned |
[in] | rr_name | the name to query for (as string) |
[in] | rr_class | the class to query for |
[in] | flags | packet flags |
[in] | soa | soa record to be added to the authority section (not copied). |
Definition at line 1089 of file packet.c.
References LDNS_STATUS_OK, and ldns_str2rdf_dname().
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.
[in] | rr_name | the name to query for (not copied). The returned packet will take ownership of rr_name, so the caller should not free it. |
[in] | rr_type | the type to query for |
[in] | rr_class | the class to query for |
[in] | flags | packet flags |
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.
adds the SOA record to the authority section.
[in] | rr_name | the name to query for (not copied). The returned packet will take ownership of rr_name, so the caller should not free it. |
[in] | rr_class | the class to query for |
[in] | flags | packet flags |
[in] | soa | soa record to be added to the authority section (not copied). |
clones the given packet, creating a fully allocated copy
[in] | pkt | the packet to clone |
Definition at line 1214 of file packet.c.
References ldns_struct_pkt::_additional, ldns_struct_pkt::_answer, ldns_struct_pkt::_authority, ldns_struct_pkt::_edns_list, ldns_struct_pkt::_edns_present, ldns_struct_pkt::_question, ldns_edns_option_list_clone(), ldns_pkt_aa(), ldns_pkt_ad(), ldns_pkt_additional(), ldns_pkt_ancount(), ldns_pkt_answer(), ldns_pkt_answerfrom(), ldns_pkt_arcount(), ldns_pkt_authority(), ldns_pkt_cd(), ldns_pkt_edns_data(), ldns_pkt_edns_do(), ldns_pkt_edns_extended_rcode(), ldns_pkt_edns_udp_size(), ldns_pkt_edns_version(), ldns_pkt_edns_z(), ldns_pkt_get_opcode(), ldns_pkt_get_rcode(), ldns_pkt_id(), ldns_pkt_new(), ldns_pkt_nscount(), ldns_pkt_qdcount(), ldns_pkt_qr(), ldns_pkt_querytime(), ldns_pkt_question(), ldns_pkt_ra(), ldns_pkt_rd(), ldns_pkt_set_aa(), ldns_pkt_set_ad(), ldns_pkt_set_ancount(), ldns_pkt_set_answerfrom(), ldns_pkt_set_arcount(), ldns_pkt_set_cd(), ldns_pkt_set_edns_data(), ldns_pkt_set_edns_do(), ldns_pkt_set_edns_extended_rcode(), ldns_pkt_set_edns_option_list(), ldns_pkt_set_edns_udp_size(), ldns_pkt_set_edns_version(), ldns_pkt_set_edns_z(), ldns_pkt_set_id(), ldns_pkt_set_nscount(), ldns_pkt_set_opcode(), ldns_pkt_set_qdcount(), ldns_pkt_set_qr(), ldns_pkt_set_querytime(), ldns_pkt_set_ra(), ldns_pkt_set_rcode(), ldns_pkt_set_rd(), ldns_pkt_set_size(), ldns_pkt_set_tc(), ldns_pkt_set_timestamp(), ldns_pkt_set_tsig(), ldns_pkt_size(), ldns_pkt_tc(), ldns_pkt_timestamp(), ldns_pkt_tsig(), ldns_rdf_clone(), ldns_rr_clone(), ldns_rr_list_clone(), and ldns_rr_list_deep_free().
void ldns_pkt_set_additional | ( | ldns_pkt * | p, |
ldns_rr_list * | rr | ||
) |
directly set the additional section
[in] | p | packet to operate on |
[in] | rr | rrlist to set |
Definition at line 509 of file packet.c.
References ldns_struct_pkt::_additional.
void ldns_pkt_set_answer | ( | ldns_pkt * | p, |
ldns_rr_list * | rr | ||
) |
directly set the answer section
[in] | p | packet to operate on |
[in] | rr | rrlist to set |
Definition at line 521 of file packet.c.
References ldns_struct_pkt::_answer.
void ldns_pkt_set_question | ( | ldns_pkt * | p, |
ldns_rr_list * | rr | ||
) |
directly set the question section
[in] | p | packet to operate on |
[in] | rr | rrlist to set |
Definition at line 515 of file packet.c.
References ldns_struct_pkt::_question.
void ldns_pkt_set_authority | ( | ldns_pkt * | p, |
ldns_rr_list * | rr | ||
) |
directly set the authority section
[in] | p | packet to operate on |
[in] | rr | rrlist to set |
Definition at line 527 of file packet.c.
References ldns_struct_pkt::_authority.
bool ldns_pkt_push_rr | ( | ldns_pkt * | packet, |
ldns_pkt_section | section, | ||
ldns_rr * | rr | ||
) |
push an rr on a packet
[in] | packet | packet to operate on |
[in] | section | where to put it |
[in] | rr | rr to push |
Definition at line 678 of file packet.c.
References ldns_pkt_additional(), ldns_pkt_ancount(), ldns_pkt_answer(), ldns_pkt_arcount(), ldns_pkt_authority(), ldns_pkt_nscount(), ldns_pkt_qdcount(), ldns_pkt_question(), ldns_pkt_set_ancount(), ldns_pkt_set_arcount(), ldns_pkt_set_nscount(), ldns_pkt_set_qdcount(), ldns_rr_list_push_rr(), LDNS_SECTION_ADDITIONAL, LDNS_SECTION_ANSWER, LDNS_SECTION_ANY, LDNS_SECTION_ANY_NOQUESTION, LDNS_SECTION_AUTHORITY, and LDNS_SECTION_QUESTION.
bool 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.
[in] | pkt | packet to operate on |
[in] | sec | where to put it |
[in] | rr | rr to push |
Definition at line 714 of file packet.c.
References ldns_pkt_push_rr(), and ldns_pkt_rr().
bool ldns_pkt_push_rr_list | ( | ldns_pkt * | packet, |
ldns_pkt_section | section, | ||
ldns_rr_list * | list | ||
) |
push a rr_list on a packet
[in] | packet | packet to operate on |
[in] | section | where to put it |
[in] | list | the rr_list to push |
Definition at line 726 of file packet.c.
References ldns_pkt_push_rr(), ldns_rr_list_rr(), and ldns_rr_list_rr_count().
bool 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.
[in] | pkt | packet to operate on |
[in] | sec | where to put it |
[in] | list | the rr_list to push |
Definition at line 738 of file packet.c.
References ldns_pkt_safe_push_rr(), ldns_rr_list_rr(), and ldns_rr_list_rr_count().
check if a packet is empty
[in] | p | packet |
Definition at line 430 of file packet.c.
References ldns_pkt_section_count(), and LDNS_SECTION_ANY.