94 lines
2.9 KiB
C
94 lines
2.9 KiB
C
#pragma once
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#include <stdint.h>
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#include "types.h"
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/*
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0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
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#####################################
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# FLAGS #
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#####################################
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# SIZE #
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# #
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#####################################
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# DATA #
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#...................................#
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[8 bits] FLAGS
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---------------------------------------------------------
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4 bits used for specifying the version
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---------------------------------------------------------
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1 bit used to specify if this is a request or response
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0- it's a request
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1- it's a response
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---------------------------------------------------------
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2 bits used for request/response codes
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We have 4 types of different requests
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1- PING: checks if the server is avaliable
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2- INFO: gets information about the pool(s) the server is hosting
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3- LIST: requests the package list for certain pool
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4- PULL: requests a certain package from a certain pool
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And 4 types of responses
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1- PONG: response for the ping request
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2- COOL: everything is fine, here's the data you requested
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3- BRUH: cannot access to the data you requested, or version mismatch
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4- WHAT: bad request
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---------------------------------------------------------
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1 bit used to specify if this the last request/response
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0- no stay connected, im not done responsing/requesting yet
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1- yes, im done, disconnect
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---------------------------------------------------------
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[16 bits] SIZE
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---------------------------------------------------------
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All bits used for specifying the DATA size, in bytes
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---------------------------------------------------------
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[...] DATA
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---------------------------------------------------------
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Plaintext data used for that specific request/response,
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max value for SIZE is 65535, so this section may have
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65535 bytes total
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---------------------------------------------------------
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*/
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#define MPTP_VERSION_SUPPORTED 0
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#define MPTP_VERSION_MAX 15 // 4 bits
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#define MPTP_CODE_MAX 4 // 2 bits
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typedef enum lm_mptp_request{
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MPTP_C2S_PING = 0,
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MPTP_C2S_INFO = 1,
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MPTP_C2S_LIST = 2,
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MPTP_C2S_PULL = 3,
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} lm_mptp_request_t;
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typedef enum lm_mptp_response{
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MPTP_S2C_PONG = 0,
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MPTP_S2C_COOL = 1,
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MPTP_S2C_BRUH = 2,
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MPTP_S2C_WHAT = 3,
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} lm_mptp_response_t;
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typedef struct lm_mptp {
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uint8_t flags;
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uint16_t size;
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char *data;
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} lm_mptp_t;
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void lm_mptp_flags_set(lm_mptp_t *packet, uint8_t version, bool is_request, uint8_t code, bool is_last);
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#define MPTP_FLAGS_VERSION(m) (m->flags >> 4) & 15
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#define MPTP_FLAGS_IS_REQUEST(m) ((m->flags >> 3) & 1) == 0
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#define MPTP_FLAGS_TYPE(m) (m->flags >> 1) & 3
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#define MPTP_FLAGS_IS_LAST(m) (m->flags & 1) == 1
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int lm_mptp_connect(lm_url_t *url);
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bool lm_mptp_recv(int socket, lm_mptp_t *packet);
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bool lm_mptp_send(int socket, lm_mptp_t *packet);
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void lm_mptp_disconnect(int socket);
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