sock.h

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/*
 * Copyright (C) 2016 Alexander Aring <aar@pengutronix.de>
 *                    Freie Universität Berlin
 *                    HAW Hamburg
 *                    Kaspar Schleiser <kaspar@schleiser.de>
 *
 * This file is subject to the terms and conditions of the GNU Lesser
 * General Public License v2.1. See the file LICENSE in the top level
 * directory for more details.
 */
 
#pragma once

 
#include <stdint.h>
#include <stddef.h>
#include "iolist.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
#if defined(DOXYGEN)
#define SOCK_HAS_IPV6       
#define SOCK_HAS_ASYNC
#define SOCK_HAS_ASYNC_CTX
#endif

#define SOCK_FLAGS_REUSE_EP         (0x0001)    
#define SOCK_FLAGS_CONNECT_REMOTE   (0x0002)    

#define SOCK_ADDR_ANY_NETIF (0)

#define SOCK_IPV4_EP_ANY        { .family = AF_INET, \
                                  .netif = SOCK_ADDR_ANY_NETIF }
 
#if defined(SOCK_HAS_IPV6) || defined(DOXYGEN)
#define SOCK_IPV6_EP_ANY        { .family = AF_INET6, \
                                  .netif = SOCK_ADDR_ANY_NETIF }
#endif

#define SOCK_NO_TIMEOUT     (UINT32_MAX)

typedef struct {
    int family;
 
    union {
#ifdef SOCK_HAS_IPV6
        uint8_t ipv6[16];
#endif
        uint8_t ipv4[4];        
        uint32_t ipv4_u32;      
    } addr;                 

    uint16_t netif;
} sock_ip_ep_t;

struct _sock_tl_ep {
    int family;
 
    union {
#ifdef SOCK_HAS_IPV6
        uint8_t ipv6[16];
#endif
        uint8_t ipv4[4];        
        uint32_t ipv4_u32;      
    } addr;                 

    uint16_t netif;
    uint16_t port;          
};

enum {
    SOCK_AUX_GET_LOCAL = (1LU << 0),
    SOCK_AUX_GET_TIMESTAMP = (1LU << 1),
    SOCK_AUX_GET_RSSI = (1LU << 2),
    SOCK_AUX_SET_LOCAL = (1LU << 3),
    SOCK_AUX_GET_TTL = (1LU << 4),
};

typedef uint8_t sock_aux_flags_t;
 
#ifdef __cplusplus
}
#endif