82 lines
2.9 KiB
C
82 lines
2.9 KiB
C
#ifndef MICROTCP_H
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#define MICROTCP_H
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#include <stddef.h>
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#include <stdint.h>
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#include <assert.h>
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#include <stdbool.h>
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typedef struct microtcp_t microtcp_t;
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typedef struct microtcp_socket_t microtcp_socket_t;
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#define MICROTCP_MAX_BUFFERS 8
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#define MICROTCP_MAX_SOCKETS 32
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#define MICROTCP_MAX_MUX_ENTRIES 32
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typedef enum {
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MICROTCP_ERRCODE_NONE = 0,
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// Returned by microtcp_open and microtcp_accept
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MICROTCP_ERRCODE_SOCKETLIMIT,
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// Returned by microtcp_open
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MICROTCP_ERRCODE_TCPERROR,
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MICROTCP_ERRCODE_BADCONDVAR,
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// Returned by microtcp_accept
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MICROTCP_ERRCODE_NOTLISTENER,
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MICROTCP_ERRCODE_CANTBLOCK,
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// Returned by microtcp_recv and microtcp_send
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MICROTCP_ERRCODE_NOTCONNECTION,
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// Returned by microtcp_accept, microtcp_recv and microtcp_send
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MICROTCP_ERRCODE_WOULDBLOCK,
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// Returned by microtcp_recv, microtcp_send
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MICROTCP_ERRCODE_PEERCLOSED,
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} microtcp_errcode_t;
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typedef struct {
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void *data;
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void (*free)(void *data);
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int (*send)(void *data, const void *src, size_t len);
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int (*recv)(void *data, void *dst, size_t len);
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} microtcp_callbacks_t;
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bool microtcp_callbacks_create_for_tap(const char *ip, const char *mac, microtcp_callbacks_t *callbacks);
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microtcp_t *microtcp_create(const char *tap_ip, const char *stack_ip, const char *tap_mac, const char *stack_mac);
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microtcp_t *microtcp_create_using_callbacks(const char *ip, const char *mac, microtcp_callbacks_t callbacks);
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void microtcp_destroy(microtcp_t *mtcp);
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const char *microtcp_strerror(microtcp_errcode_t errcode);
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microtcp_socket_t *microtcp_open(microtcp_t *mtcp, uint16_t port, microtcp_errcode_t *errcode);
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microtcp_socket_t *microtcp_accept(microtcp_socket_t *socket, bool no_block, microtcp_errcode_t *errcode);
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void microtcp_close(microtcp_socket_t *socket);
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size_t microtcp_send(microtcp_socket_t *socket, const void *src, size_t len, bool no_block, microtcp_errcode_t *errcode);
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size_t microtcp_recv(microtcp_socket_t *socket, void *dst, size_t len, bool no_block, microtcp_errcode_t *errcode);
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void microtcp_step(microtcp_t *mtcp);
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void microtcp_process_packet(microtcp_t *mtcp, const void *packet, size_t len);
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typedef enum {
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MICROTCP_MUX_ACCEPT = 1,
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MICROTCP_MUX_RECV = 2,
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MICROTCP_MUX_SEND = 4,
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} microtcp_muxeventid_t;
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typedef struct {
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void *userp;
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int events;
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microtcp_socket_t *socket;
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} microtcp_muxevent_t;
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typedef struct microtcp_mux_t microtcp_mux_t;
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microtcp_mux_t *microtcp_mux_create(microtcp_t *mtcp);
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void microtcp_mux_destroy(microtcp_mux_t *mux);
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bool microtcp_mux_register(microtcp_mux_t *mux, microtcp_socket_t *sock, int events, void *userp);
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bool microtcp_mux_unregister(microtcp_mux_t *mux, microtcp_socket_t *sock, int events);
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bool microtcp_mux_wait(microtcp_mux_t *mux, microtcp_muxevent_t *ev);
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#endif |