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-rw-r--r--include/dns_decoder.h245
1 files changed, 11 insertions, 234 deletions
diff --git a/include/dns_decoder.h b/include/dns_decoder.h
index 3892d12..b41f7b9 100644
--- a/include/dns_decoder.h
+++ b/include/dns_decoder.h
@@ -1,13 +1,3 @@
-/*
-**********************************************************************************************
-* File: dns_decoder.h
-* Description: dns decoder api
-* Authors: Liu XueLi <[email protected]>
-* Date: 2024-02-07
-* Copyright: (c) Since 2022 Geedge Networks, Ltd. All rights reserved.
-***********************************************************************************************
-*/
-
#pragma once
#ifdef __cplusplus
@@ -19,223 +9,11 @@ extern "C"
#include <linux/limits.h>
#include <stddef.h>
-#define DNS_MESSAGE_TOPIC "TOPIC_DNS"
-
-#define DNS_NAME_MAX (NAME_MAX + 1)
-// #define HINFO_NAME_MAX (40 + 1) /* https://www.ietf.org/rfc/rfc1010.txt */
-
-#define DNS_CLASS_UNKNOWN 0
-#define DNS_CLASS_IN 1
-#define DNS_CLASS_CS 2
-#define DNS_CLASS_CH 3
-#define DNS_CLASS_HS 4
-#define DNS_CLASS_ANY 255
-
-/* RR(resource record) type, defined in https://www.ietf.org/rfc/rfc1035.txt */
-enum dns_rr_type
-{
- DNS_RR_TYPE_A = 1,
- DNS_RR_TYPE_NS,
- DNS_RR_TYPE_MD, /* Obsolete - use MX, rfc973 */
- DNS_RR_TYPE_MF, /* Obsolete - use MX, rfc973 */
- DNS_RR_TYPE_CNAME,
- DNS_RR_TYPE_SOA,
- DNS_RR_TYPE_MB, /* EXPERIMENTAL, rfc883,rfc2505 */
- DNS_RR_TYPE_MG, /* EXPERIMENTAL, rfc883,rfc2505 */
- DNS_RR_TYPE_MR, /* EXPERIMENTAL, rfc883 */
- DNS_RR_TYPE_NULL, /* EXPERIMENTAL, rfc1035 */
- DNS_RR_TYPE_WKS, /* Not to be relied upon, rfc1123 */
- DNS_RR_TYPE_PTR,
- DNS_RR_TYPE_HINFO,
- DNS_RR_TYPE_MINFO,
- DNS_RR_TYPE_MX,
- DNS_RR_TYPE_TXT,
- DNS_RR_TYPE_RP,
- DNS_RR_TYPE_ISDN = 20,
- DNS_RR_TYPE_AAAA = 28, /* dns_ipv6 */
- DNS_RR_TYPE_SRV = 33,
- DNS_RR_TYPE_DNAME = 39,
- DNS_RR_TYPE_OPT = 41,
- DNS_RR_TYPE_DS = 43,
- DNS_RR_TYPE_RRSIG = 46,
- DNS_RR_TYPE_NSEC,
- DNS_RR_TYPE_DNSKEY,
- DNS_RR_TYPE_NSEC3 = 50,
- DNS_RR_TYPE_NSEC3PARAM,
- DNS_RR_TYPE_HTTPS = 65,
- DNS_RR_TYPE_AXFR = 252,
- DNS_RR_TYPE_MAILB,
- DNS_RR_TYPE_MAILA, /* Obsolete - see MX */
- DNS_RR_TYPE_ANY,
- DNS_RR_TYPE_DLV = 32769, /* DSNSEC Lokkaside Validation */
- DNS_RR_TYPE_UNKNOWN = 65534
-};
-
-struct dstring
-{
- size_t value_sz;
- uint8_t value[DNS_NAME_MAX];
-};
-
-struct rdata_hinfo
-{
- struct dstring os;
- struct dstring cpu;
-};
-
-struct rdata_minfo
-{
- struct dstring rmailbx;
- struct dstring emailbx;
-};
-
-struct rdata_mx
-{
- uint16_t preference;
- struct dstring exchange;
-};
-
-struct rdata_soa
-{
- struct dstring mname;
- struct dstring rname;
- uint32_t serial;
- uint32_t refresh;
- uint32_t retry;
- uint32_t expire;
- uint32_t minimum;
-};
-
-struct rdata_rp
-{
- struct dstring txt_rr;
- struct dstring mailbox;
-};
-
-struct rdata_wks
-{
- uint8_t protocol;
- uint32_t addr;
- uint32_t size;
- uint8_t *bitmap;
-};
-
-struct rdata_srv
-{
- uint16_t priority;
- uint16_t weight;
- uint16_t port;
- struct dstring target;
-};
-
-struct rdata_ds
-{
- uint16_t key_tag;
- uint8_t algo;
- uint8_t digest_type;
- uint32_t digest_len;
- uint8_t *digest;
-};
-
-struct rdata_rrsig
-{
- uint16_t type_covered;
- uint8_t algo;
- uint8_t labels;
- uint32_t original_ttl;
- uint32_t sig_expiration;
- uint32_t sig_inception;
- uint16_t key_tag;
- uint32_t signature_len;
- uint8_t *signature;
- struct dstring signer_name;
-};
-
-struct rdata_nsec
-{
- uint16_t maps_len;
- struct dstring next_domain;
- struct dstring type_bit_maps;
-};
-
-struct rdata_dnskey
-{
- uint16_t flags;
- uint8_t protocol;
- uint8_t algo;
- uint32_t public_key_len;
- uint8_t *public_key;
-};
-
-struct rdata_nsec3
-{
- uint8_t hash_algo;
- uint8_t flags;
- uint8_t salt_len;
- uint8_t hash_len;
- uint16_t iteration;
- uint16_t maps_len;
- uint8_t *salt_value;
- uint8_t *next_hash_owner;
- struct dstring type_bit_maps;
-};
-
-struct rdata_nsec3param
-{
- uint8_t hash_algo;
- uint8_t flags;
- uint8_t salt_len;
- uint16_t iteration;
- uint8_t *salt_value;
-};
-
-/* rr is short for resource record */
-struct dns_resource_record
-{
- struct dstring qname;
- enum dns_rr_type type;
- uint16_t rr_class;
- uint32_t ttl; /* 1byte: extended RCODE; 1byte: version; 2bytes: Z(upper bit) if type is OPT */
- uint16_t rdlength;
- union
- {
-
- struct dstring cname;
- struct dstring mb;
- struct dstring md;
- struct dstring mf;
- struct dstring mg;
- struct dstring mr;
- struct dstring ns;
- struct dstring ptr;
- struct dstring a;
- struct dstring aaaa;
- struct dstring dname;
- struct dstring isdn;
- struct dstring unknown;
-
- struct dstring txt;
- struct dstring null;
-
- struct rdata_hinfo hinfo;
- struct rdata_minfo minfo;
- struct rdata_mx mx;
- struct rdata_soa soa;
- struct rdata_rp rp;
- struct rdata_wks wks;
- struct rdata_srv srv;
- struct rdata_ds ds;
- struct rdata_rrsig rrsig;
- struct rdata_nsec nsec;
- struct rdata_dnskey dnskey;
- struct rdata_nsec3 nsec3;
- struct rdata_nsec3param nsec3param;
- struct dstring string;
- } rdata;
-};
+#define DNS_MESSAGE_TOPIC "TOPIC_DNS_MESSAGE"
struct dns_message;
-
+struct dns_query_question;
+struct dns_resource_record;
/*.
First call DNS_MESSAGE_TRANSACTION_BEGIN to create the transaction,
@@ -265,23 +43,22 @@ struct dns_flag
uint8_t rcode:4;
};
-struct dns_query_question
-{
- enum dns_rr_type qtype;
- uint16_t qclass;
- size_t qname_sz;
- uint8_t qname[DNS_NAME_MAX];
-};
-
int32_t dns_message_transaction_index_get(struct dns_message *msg);
int32_t dns_message_header_id_get(struct dns_message *msg);
struct dns_flag *dns_message_header_flag_get0(struct dns_message *msg);
-void dns_message_question_get0(struct dns_message *msg, struct dns_query_question **question, uint16_t *n_question);
+
+void dns_message_query_question_get0(struct dns_message *msg, struct dns_query_question **question, uint16_t *n_question);
+const char *dns_query_question_qname_get0(struct dns_query_question *question);
+int32_t dns_query_question_qtype_get0(struct dns_query_question *question);
+int32_t dns_query_question_qclass_get0(struct dns_query_question *question);
+
void dns_message_answer_resource_record_get0(struct dns_message *msg, struct dns_resource_record **answer_rr, uint16_t *n_answer_rr);
void dns_message_authority_resource_record_get0(struct dns_message *msg, struct dns_resource_record **authority_rr, uint16_t *n_authority_rr);
void dns_message_additional_resource_record_get0(struct dns_message *msg, struct dns_resource_record **additional_rr, uint16_t *n_additional_rr);
+const char *dns_resource_record_json_exporter(struct dns_resource_record *rr_array, uint16_t n_rr);
+
#ifdef __cplusplus
}
#endif
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