65 lines
1.9 KiB
C
65 lines
1.9 KiB
C
#pragma once
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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#include <stdint.h>
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#include <linux/limits.h>
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#include <stddef.h>
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#define DNS_MESSAGE_TOPIC "TOPIC_DNS_MESSAGE"
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struct dns_message;
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struct dns_query_question;
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struct dns_resource_record;
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/*.
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First call DNS_MESSAGE_TRANSACTION_BEGIN to create the transaction,
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then publish the transaction's DNS_MESSAGE_QUERY/DNS_MESSAGE_RESPONSE,
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and finally call DNS_MESSAGE_TRANSACTION_END to release the transaction.
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*/
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enum dns_message_type
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{
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DNS_MESSAGE_QUERY=1,
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DNS_MESSAGE_RESPONSE,
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DNS_MESSAGE_TRANSACTION_BEGIN,
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DNS_MESSAGE_TRANSACTION_END,
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DNS_MESSAGE_MAX
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};
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enum dns_message_type dns_message_type_get(struct dns_message *msg);
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struct dns_flag
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{
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uint8_t qr:1;
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uint8_t opcode:4;
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uint8_t aa:1;
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uint8_t tc:1;
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uint8_t rd:1;
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uint8_t ra:1;
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uint8_t z:3;
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uint8_t rcode:4;
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};
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int32_t dns_message_transaction_index_get(struct dns_message *msg);
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int32_t dns_message_header_id_get(struct dns_message *msg);
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struct dns_flag *dns_message_header_flag_get0(struct dns_message *msg);
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void dns_message_query_question_get0(struct dns_message *msg, struct dns_query_question **question, uint16_t *n_question);
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const char *dns_query_question_qname_get0(struct dns_query_question *question);
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int32_t dns_query_question_qtype_get0(struct dns_query_question *question);
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int32_t dns_query_question_qclass_get0(struct dns_query_question *question);
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void dns_message_answer_resource_record_get0(struct dns_message *msg, struct dns_resource_record **answer_rr, uint16_t *n_answer_rr);
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void dns_message_authority_resource_record_get0(struct dns_message *msg, struct dns_resource_record **authority_rr, uint16_t *n_authority_rr);
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void dns_message_additional_resource_record_get0(struct dns_message *msg, struct dns_resource_record **additional_rr, uint16_t *n_additional_rr);
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const char *dns_resource_record_json_exporter(struct dns_resource_record *rr_array, uint16_t n_rr);
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#ifdef __cplusplus
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}
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#endif
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