RRset data. More...
#include <packed_rrset.h>
Data Fields | |
| time_t | ttl_add |
| Timestamp added to TTLs in the packed data. More... | |
| time_t | ttl |
| TTL (in seconds like time()) of the rrset. More... | |
| size_t | count |
| number of rrs. | |
| size_t | rrsig_count |
| number of rrsigs, if 0 no rrsigs | |
| enum rrset_trust | trust |
| the trustworthiness of the rrset data | |
| enum sec_status | security |
| security status of the rrset data | |
| size_t * | rr_len |
| length of every rr's rdata, rr_len[i] is size of rr_data[i]. | |
| time_t * | rr_ttl |
| ttl of every rr. More... | |
| uint8_t ** | rr_data |
| Array of pointers to every rr's rdata. More... | |
RRset data.
The data is packed, stored contiguously in memory.
It is not always stored contiguously, in that case, an unpacked-packed rrset has the arrays separate. A bunch of routines work on that, but the packed rrset that is contiguous is for the rrset-cache and the cache-response routines in daemon/worker.c.
memory layout: o base struct o rr_len size_t array o rr_data uint8_t* array o rr_ttl time_t array (after size_t and ptrs because those may be 64bit and this array before those would make them unaligned). Since the stuff before is 32/64bit, rr_ttl is 32 bit aligned. o rr_data rdata wireformats o rrsig_data rdata wireformat(s)
Rdata is stored in wireformat. The dname is stored in wireformat. TTLs are stored as absolute values (and could be expired).
RRSIGs are stored in the arrays after the regular rrs.
You need the packed_rrset_key to know dname, type, class of the resource records in this RRset. (if signed the rrsig gives the type too).
On the wire an RR is: name, type, class, ttl, rdlength, rdata. So we need to send the following per RR: key.dname, ttl, rr_data[i]. since key.dname ends with type and class. and rr_data starts with the rdlength. the ttl value to send changes due to time.
| time_t packed_rrset_data::ttl_add |
Timestamp added to TTLs in the packed data.
Needed to support serving original TTLs.
Referenced by packed_rrset_copy_region(), packed_rrset_encode(), packed_rrset_ttl_add(), and reply_info_set_ttls().
| time_t packed_rrset_data::ttl |
TTL (in seconds like time()) of the rrset.
Same for all RRs see rfc2181(5.2).
Referenced by adjust_ttl(), bogus_del_rrset(), dump_rrset(), fill_res(), get_rrset_ttl(), grab_nsec(), invalidateQueryInCache(), iter_store_parentside_neg(), key_entry_create_rrset(), key_ttl(), limit_nsec_ttl(), load_rrset(), local_data_find_tag_datas(), lz_enter_rr_into_zone(), need_to_update_rrset(), packed_rrset_copy_region(), packed_rrset_heap_data(), packed_rrset_ttl_add(), parse_copy_decompress(), parse_rr_copy(), reply_info_set_ttls(), rrset_add_rr(), rrset_cache_expired_above(), rrset_cache_lookup(), rrset_cache_remove_above(), rrset_canonical_equal(), rrset_check_sec_status(), rrset_create(), rrset_get_ttl(), rrset_moveover_rrsigs(), rrset_msg(), rrset_remove_rr(), rrset_update_sec_status(), store_rrsets(), synth_dname_msg(), ub_packed_rrset_ttl(), and zone_del_rrset().
| time_t* packed_rrset_data::rr_ttl |
ttl of every rr.
rr_ttl[i] ttl of rr i.
Referenced by assemble_it(), assembled_rrset_delete(), auth_rr_to_string(), invalidateQueryInCache(), iter_store_parentside_neg(), load_rr(), load_rrset(), local_data_find_tag_datas(), local_rrset_remove_rr(), mesh_state_add_reply(), move_into_cache(), need_to_update_rrset(), new_cname_override(), packed_rrset_copy_region(), packed_rrset_encode(), packed_rrset_heap_data(), packed_rrset_ptr_fixup(), packed_rrset_ttl_add(), parse_rr_copy(), reply_info_set_ttls(), respip_copy_rrset(), rpz_local_encode(), rrset_add_rr(), rrset_canonicalize_to_buffer(), rrset_check_sec_status(), rrset_create(), rrset_insert_rr(), rrset_moveover_rrsigs(), rrset_remove_rr(), rrset_update_sec_status(), rrsigs_copy_from_rrset_to_rrsigset(), and zonemd_simple_rrsig_allocs().
| uint8_t** packed_rrset_data::rr_data |
Array of pointers to every rr's rdata.
The rr_data[i] rdata is stored in uncompressed wireformat. The first uint16_t of rr_data[i] is network format rdlength.
rr_data[count] to rr_data[count+rrsig_count] contain the rrsig data.
Referenced by assemble_it(), assembled_rrset_delete(), auth_rr_to_string(), az_add_additionals_from(), az_rrset_find_rrsig(), canonical_compare(), canonical_compare_byfield(), create_synth_cname(), delegpt_add_rrset_A(), delegpt_add_rrset_AAAA(), delegpt_rrset_add_ns(), dnskey_get_keysize(), fill_res(), follow_cname_chain(), kd_get_flags(), load_rr(), load_rrset(), local_data_find_tag_datas(), local_rrset_remove_rr(), mesh_state_add_reply(), move_into_cache(), new_cname_override(), nsec3_get_algo(), nsec3_get_iter(), nsec3_get_nextowner(), nsec3_get_salt(), nsec3_has_optout(), nsec3_has_type(), nsec3_known_algo(), nsec3_unknown_flags(), nsec_get_next(), nsec_has_type(), packed_rrset_encode(), packed_rrset_find_rr(), packed_rrset_heap_data(), packed_rrset_ptr_fixup(), packed_rrset_sizeof(), parse_rr_copy(), rdata2sockaddr(), rdata_duplicate(), respip_copy_rrset(), rr_is_duplicate(), rrset_add_rr(), rrset_canonical(), rrset_canonical_equal(), rrset_canonicalize_to_buffer(), rrset_create(), rrset_equal(), rrset_get_rdata(), rrset_get_sig_algo(), rrset_get_sig_keytag(), rrset_has_signer(), rrset_insert_rr(), rrset_moveover_rrsigs(), rrset_remove_rr(), rrsetdata_equal(), rrsig_get_labcount(), rrsig_num_that_cover(), rrsigs_copy_from_rrset_to_rrsigset(), val_find_best_signer(), val_find_rrset_signer(), xfr_master_add_addrs(), zonemd_fetch_parameters(), and zonemd_simple_rrsig_allocs().