119 lines
3.1 KiB
C++
119 lines
3.1 KiB
C++
/*
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* Copyright (c) 2018-2021, OARC, Inc.
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* All rights reserved.
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*
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* This file is part of dnsjit.
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*
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* dnsjit is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* dnsjit is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
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*/
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//lua:require("dnsjit.core.log")
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//lua:require("dnsjit.core.object_h")
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typedef struct core_object_dns_label {
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uint8_t is_end;
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uint8_t have_length;
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uint8_t have_offset;
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uint8_t have_extension_bits;
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uint8_t have_dn;
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uint8_t extension_bits;
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uint8_t length;
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uint16_t offset;
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} core_object_dns_label_t;
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typedef struct core_object_dns_rr {
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uint8_t have_type;
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uint8_t have_class;
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uint8_t have_ttl;
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uint8_t have_rdlength;
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uint8_t have_rdata;
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uint8_t have_rdata_labels;
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uint8_t have_padding;
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uint16_t type;
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uint16_t class;
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uint32_t ttl;
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uint16_t rdlength;
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size_t labels;
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size_t rdata_offset;
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size_t rdata_labels;
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size_t padding_offset;
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size_t padding_length;
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} core_object_dns_rr_t;
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typedef struct core_object_dns_q {
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uint8_t have_type;
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uint8_t have_class;
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uint16_t type;
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uint16_t class;
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size_t labels;
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} core_object_dns_q_t;
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typedef struct core_object_dns {
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const core_object_t* obj_prev;
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int32_t obj_type;
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int includes_dnslen;
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const uint8_t *payload, *at;
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size_t len, left;
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uint8_t have_dnslen;
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uint8_t have_id;
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uint8_t have_qr;
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uint8_t have_opcode;
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uint8_t have_aa;
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uint8_t have_tc;
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uint8_t have_rd;
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uint8_t have_ra;
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uint8_t have_z;
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uint8_t have_ad;
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uint8_t have_cd;
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uint8_t have_rcode;
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uint8_t have_qdcount;
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uint8_t have_ancount;
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uint8_t have_nscount;
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uint8_t have_arcount;
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uint16_t dnslen;
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uint16_t id;
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int8_t qr;
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uint8_t opcode;
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uint8_t aa;
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uint8_t tc;
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uint8_t rd;
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uint8_t ra;
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uint8_t z;
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uint8_t ad;
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uint8_t cd;
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uint8_t rcode;
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uint16_t qdcount;
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uint16_t ancount;
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uint16_t nscount;
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uint16_t arcount;
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} core_object_dns_t;
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core_log_t* core_object_dns_log();
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core_object_dns_t* core_object_dns_new();
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core_object_dns_t* core_object_dns_copy(const core_object_dns_t* self);
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void core_object_dns_free(core_object_dns_t* self);
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void core_object_dns_reset(core_object_dns_t* self, const core_object_t* obj);
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int core_object_dns_parse_header(core_object_dns_t* self);
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int core_object_dns_parse_q(core_object_dns_t* self, core_object_dns_q_t* q, core_object_dns_label_t* label, size_t labels);
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int core_object_dns_parse_rr(core_object_dns_t* self, core_object_dns_rr_t* rr, core_object_dns_label_t* label, size_t labels);
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