[lwIP] apply AF_UNIX feature (#6954)
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@ -647,6 +647,169 @@ void eth_device_deinit(struct eth_device *dev)
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rt_free(netif);
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}
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#ifdef SAL_USING_AF_UNIX /* create loopback netdev */
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static err_t af_unix_eth_netif_device_init(struct netif *netif)
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{
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struct eth_device *ethif;
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ethif = (struct eth_device*)netif->state;
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if (ethif != RT_NULL)
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{
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rt_device_t device;
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#ifdef RT_USING_NETDEV
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/* network interface device register */
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netdev_add(netif);
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#endif /* RT_USING_NETDEV */
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/* get device object */
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device = (rt_device_t) ethif;
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if (rt_device_init(device) != RT_EOK)
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{
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return ERR_IF;
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}
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if (rt_device_open(device, RT_DEVICE_FLAG_RDWR) != RT_EOK)
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{
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return ERR_IF;
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}
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/* copy device flags to netif flags */
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netif->flags = (ethif->flags & 0xff);
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netif->mtu = ETHERNET_MTU;
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/* set output */
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netif->output = etharp_output;
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#if LWIP_IPV6
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netif->output_ip6 = ethip6_output;
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netif->ip6_autoconfig_enabled = 1;
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netif_create_ip6_linklocal_address(netif, 1);
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#if LWIP_IPV6_MLD
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netif->flags |= NETIF_FLAG_MLD6;
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/*
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* For hardware/netifs that implement MAC filtering.
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* All-nodes link-local is handled by default, so we must let the hardware know
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* to allow multicast packets in.
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* Should set mld_mac_filter previously. */
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if (netif->mld_mac_filter != NULL)
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{
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ip6_addr_t ip6_allnodes_ll;
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ip6_addr_set_allnodes_linklocal(&ip6_allnodes_ll);
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netif->mld_mac_filter(netif, &ip6_allnodes_ll, NETIF_ADD_MAC_FILTER);
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}
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#endif /* LWIP_IPV6_MLD */
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#endif /* LWIP_IPV6 */
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/* set default netif */
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if (netif_default == RT_NULL)
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netif_set_default(ethif->netif);
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/* set interface up */
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netif_set_up(ethif->netif);
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if (ethif->flags & ETHIF_LINK_PHYUP)
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{
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/* set link_up for this netif */
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netif_set_link_up(ethif->netif);
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}
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#ifdef RT_USING_NETDEV
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/* network interface device flags synchronize */
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netdev_flags_sync(netif);
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#endif /* RT_USING_NETDEV */
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return ERR_OK;
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}
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return ERR_IF;
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}
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/* Keep old drivers compatible in RT-Thread */
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rt_err_t af_unix_eth_device_init_with_flag(struct eth_device *dev, const char *name, rt_uint16_t flags)
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{
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struct netif* netif;
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#if LWIP_NETIF_HOSTNAME
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#define LWIP_HOSTNAME_LEN 16
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char *hostname = RT_NULL;
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netif = (struct netif*) rt_calloc (1, sizeof(struct netif) + LWIP_HOSTNAME_LEN);
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#else
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netif = (struct netif*) rt_calloc (1, sizeof(struct netif));
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#endif
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if (netif == RT_NULL)
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{
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rt_kprintf("malloc netif failed\n");
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return -RT_ERROR;
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}
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/* set netif */
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dev->netif = netif;
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dev->flags = flags;
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/* link changed status of device */
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dev->link_changed = 0x00;
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/* avoid send the same mail to mailbox */
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dev->rx_notice = 0x00;
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dev->parent.type = RT_Device_Class_NetIf;
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/* register to RT-Thread device manager */
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rt_device_register(&(dev->parent), name, RT_DEVICE_FLAG_RDWR);
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/* set name */
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netif->name[0] = name[0];
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netif->name[1] = name[1];
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/* set hw address to 6 */
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netif->hwaddr_len = 6;
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/* maximum transfer unit */
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netif->mtu = ETHERNET_MTU;
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/* set linkoutput */
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netif->linkoutput = ethernetif_linkoutput;
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/* get hardware MAC address */
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rt_device_control(&(dev->parent), NIOCTL_GADDR, netif->hwaddr);
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#if LWIP_NETIF_HOSTNAME
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/* Initialize interface hostname */
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hostname = (char *)netif + sizeof(struct netif);
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rt_sprintf(hostname, "rtthread_%02x%02x", name[0], name[1]);
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netif->hostname = hostname;
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#endif /* LWIP_NETIF_HOSTNAME */
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/* if tcp thread has been started up, we add this netif to the system */
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if (rt_thread_find("tcpip") != RT_NULL)
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{
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#if LWIP_VERSION_MAJOR == 1U /* v1.x */
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struct ip_addr ipaddr, netmask, gw;
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#else /* >= v2.x */
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ip4_addr_t ipaddr, netmask, gw;
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#endif /* LWIP_VERSION_MAJOR == 1U */
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ipaddr.addr = inet_addr("127.0.0.1");
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gw.addr = inet_addr("255.0.0.0");
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netmask.addr = inet_addr("127.0.0.1");
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netifapi_netif_add(netif, &ipaddr, &netmask, &gw, dev, af_unix_eth_netif_device_init, tcpip_input);
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}
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return RT_EOK;
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}
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rt_err_t af_unix_eth_device_init(struct eth_device * dev, const char *name)
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{
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rt_uint16_t flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP;
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#if LWIP_IGMP
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/* IGMP support */
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flags |= NETIF_FLAG_IGMP;
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#endif
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return af_unix_eth_device_init_with_flag(dev, name, flags);
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}
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#endif /* SAL_USING_AF_UNIX */
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#ifndef LWIP_NO_RX_THREAD
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rt_err_t eth_device_ready(struct eth_device* dev)
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{
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@ -34,6 +34,11 @@ if RT_USING_SAL
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Enable BSD socket operated by file system API
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Let BSD socket operated by file system API, such as read/write and involveed in select/poll POSIX APIs.
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config SAL_USING_AF_UNIX
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bool "Enable support AF_UNIX socket"
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default n
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default y if RT_USING_SMART
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config SAL_SOCKETS_NUM
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int "the maximum number of sockets"
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depends on !SAL_USING_POSIX
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