38 lines
732 B
C
38 lines
732 B
C
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#include <stdint.h>
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#define REQ_MAGIC 0x179E08EF
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typedef struct {
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uint32_t magic;
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#define REQ_VERSION 1
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uint8_t version;
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#define REQ_REQ 1
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#define REQ_RESP 0
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uint8_t req;
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#define REQ_IPV4 32
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#define REQ_IPV6 128
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uint8_t err;
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uint8_t ip_type; // 4 or 6
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uint32_t flags;
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union {
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uint32_t ipv4;
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struct {
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uint32_t a;
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uint32_t b;
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uint32_t c;
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uint32_t d;
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}ipv6;
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};
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uint8_t country_code[4];
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} request_t;
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enum {
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REQ_ERR_NO_ERR = 0,
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REQ_ERR_BAD_MAGIC,
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REQ_ERR_BAD_VERSION,
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REQ_ERR_BAD_REQ_FIELD,
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REQ_ERR_BAD_IP_VERSION,
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REQ_ERR_UNSUPPORTED_IP_VERSION, // 5
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REQ_IP_NOT_FOUND, // Not really an error
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};
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