| /** |
| * @file |
| * netif API (to be used from TCPIP thread) |
| */ |
| |
| /* |
| * Copyright (c) 2001-2004 Swedish Institute of Computer Science. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without modification, |
| * are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * 3. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT |
| * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT |
| * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY |
| * OF SUCH DAMAGE. |
| * |
| * This file is part of the lwIP TCP/IP stack. |
| * |
| * Author: Adam Dunkels <adam@sics.se> |
| * |
| */ |
| #ifndef LWIP_HDR_NETIF_H |
| #define LWIP_HDR_NETIF_H |
| |
| #include "lwip/opt.h" |
| |
| #define ENABLE_LOOPBACK (LWIP_NETIF_LOOPBACK || LWIP_HAVE_LOOPIF) |
| |
| #include "lwip/err.h" |
| |
| #include "lwip/ip_addr.h" |
| |
| #include "lwip/def.h" |
| #include "lwip/pbuf.h" |
| #include "lwip/stats.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* Throughout this file, IP addresses are expected to be in |
| * the same byte order as in IP_PCB. */ |
| |
| /** Must be the maximum of all used hardware address lengths |
| across all types of interfaces in use. |
| This does not have to be changed, normally. */ |
| #ifndef NETIF_MAX_HWADDR_LEN |
| #define NETIF_MAX_HWADDR_LEN 6U |
| #endif |
| |
| /** |
| * @defgroup netif_flags Flags |
| * @ingroup netif |
| * @{ |
| */ |
| |
| /** Whether the network interface is 'up'. This is |
| * a software flag used to control whether this network |
| * interface is enabled and processes traffic. |
| * It must be set by the startup code before this netif can be used |
| * (also for dhcp/autoip). |
| */ |
| #define NETIF_FLAG_UP 0x01U |
| /** If set, the netif has broadcast capability. |
| * Set by the netif driver in its init function. */ |
| #define NETIF_FLAG_BROADCAST 0x02U |
| /** If set, the interface has an active link |
| * (set by the network interface driver). |
| * Either set by the netif driver in its init function (if the link |
| * is up at that time) or at a later point once the link comes up |
| * (if link detection is supported by the hardware). */ |
| #define NETIF_FLAG_LINK_UP 0x04U |
| /** If set, the netif is an ethernet device using ARP. |
| * Set by the netif driver in its init function. |
| * Used to check input packet types and use of DHCP. */ |
| #define NETIF_FLAG_ETHARP 0x08U |
| /** If set, the netif is an ethernet device. It might not use |
| * ARP or TCP/IP if it is used for PPPoE only. |
| */ |
| #define NETIF_FLAG_ETHERNET 0x10U |
| /** If set, the netif has IGMP capability. |
| * Set by the netif driver in its init function. */ |
| #define NETIF_FLAG_IGMP 0x20U |
| /** If set, the netif has MLD6 capability. |
| * Set by the netif driver in its init function. */ |
| #define NETIF_FLAG_MLD6 0x40U |
| |
| /** |
| * @} |
| */ |
| |
| enum lwip_internal_netif_client_data_index |
| { |
| #if LWIP_DHCP |
| LWIP_NETIF_CLIENT_DATA_INDEX_DHCP, |
| #endif |
| #if LWIP_AUTOIP |
| LWIP_NETIF_CLIENT_DATA_INDEX_AUTOIP, |
| #endif |
| #if LWIP_IGMP |
| LWIP_NETIF_CLIENT_DATA_INDEX_IGMP, |
| #endif |
| #if LWIP_IPV6_MLD |
| LWIP_NETIF_CLIENT_DATA_INDEX_MLD6, |
| #endif |
| LWIP_NETIF_CLIENT_DATA_INDEX_MAX |
| }; |
| |
| #if LWIP_CHECKSUM_CTRL_PER_NETIF |
| #define NETIF_CHECKSUM_GEN_IP 0x0001 |
| #define NETIF_CHECKSUM_GEN_UDP 0x0002 |
| #define NETIF_CHECKSUM_GEN_TCP 0x0004 |
| #define NETIF_CHECKSUM_GEN_ICMP 0x0008 |
| #define NETIF_CHECKSUM_GEN_ICMP6 0x0010 |
| #define NETIF_CHECKSUM_CHECK_IP 0x0100 |
| #define NETIF_CHECKSUM_CHECK_UDP 0x0200 |
| #define NETIF_CHECKSUM_CHECK_TCP 0x0400 |
| #define NETIF_CHECKSUM_CHECK_ICMP 0x0800 |
| #define NETIF_CHECKSUM_CHECK_ICMP6 0x1000 |
| #define NETIF_CHECKSUM_ENABLE_ALL 0xFFFF |
| #define NETIF_CHECKSUM_DISABLE_ALL 0x0000 |
| #endif /* LWIP_CHECKSUM_CTRL_PER_NETIF */ |
| |
| struct netif; |
| |
| /** MAC Filter Actions, these are passed to a netif's igmp_mac_filter or |
| * mld_mac_filter callback function. */ |
| enum netif_mac_filter_action { |
| /** Delete a filter entry */ |
| NETIF_DEL_MAC_FILTER = 0, |
| /** Add a filter entry */ |
| NETIF_ADD_MAC_FILTER = 1 |
| }; |
| |
| /** Function prototype for netif init functions. Set up flags and output/linkoutput |
| * callback functions in this function. |
| * |
| * @param netif The netif to initialize |
| */ |
| typedef err_t (*netif_init_fn)(struct netif *netif); |
| /** Function prototype for netif->input functions. This function is saved as 'input' |
| * callback function in the netif struct. Call it when a packet has been received. |
| * |
| * @param p The received packet, copied into a pbuf |
| * @param inp The netif which received the packet |
| */ |
| typedef err_t (*netif_input_fn)(struct pbuf *p, struct netif *inp); |
| |
| #if LWIP_IPV4 |
| /** Function prototype for netif->output functions. Called by lwIP when a packet |
| * shall be sent. For ethernet netif, set this to 'etharp_output' and set |
| * 'linkoutput'. |
| * |
| * @param netif The netif which shall send a packet |
| * @param p The packet to send (p->payload points to IP header) |
| * @param ipaddr The IP address to which the packet shall be sent |
| */ |
| typedef err_t (*netif_output_fn)(struct netif *netif, struct pbuf *p, |
| const ip4_addr_t *ipaddr); |
| #endif /* LWIP_IPV4*/ |
| |
| #if LWIP_IPV6 |
| /** Function prototype for netif->output_ip6 functions. Called by lwIP when a packet |
| * shall be sent. For ethernet netif, set this to 'ethip6_output' and set |
| * 'linkoutput'. |
| * |
| * @param netif The netif which shall send a packet |
| * @param p The packet to send (p->payload points to IP header) |
| * @param ipaddr The IPv6 address to which the packet shall be sent |
| */ |
| typedef err_t (*netif_output_ip6_fn)(struct netif *netif, struct pbuf *p, |
| const ip6_addr_t *ipaddr); |
| #endif /* LWIP_IPV6 */ |
| |
| /** Function prototype for netif->linkoutput functions. Only used for ethernet |
| * netifs. This function is called by ARP when a packet shall be sent. |
| * |
| * @param netif The netif which shall send a packet |
| * @param p The packet to send (raw ethernet packet) |
| */ |
| typedef err_t (*netif_linkoutput_fn)(struct netif *netif, struct pbuf *p); |
| /** Function prototype for netif status- or link-callback functions. */ |
| typedef void (*netif_status_callback_fn)(struct netif *netif); |
| #if LWIP_IPV4 && LWIP_IGMP |
| /** Function prototype for netif igmp_mac_filter functions */ |
| typedef err_t (*netif_igmp_mac_filter_fn)(struct netif *netif, |
| const ip4_addr_t *group, enum netif_mac_filter_action action); |
| #endif /* LWIP_IPV4 && LWIP_IGMP */ |
| #if LWIP_IPV6 && LWIP_IPV6_MLD |
| /** Function prototype for netif mld_mac_filter functions */ |
| typedef err_t (*netif_mld_mac_filter_fn)(struct netif *netif, |
| const ip6_addr_t *group, enum netif_mac_filter_action action); |
| #endif /* LWIP_IPV6 && LWIP_IPV6_MLD */ |
| |
| #if LWIP_DHCP || LWIP_AUTOIP || LWIP_IGMP || LWIP_IPV6_MLD || (LWIP_NUM_NETIF_CLIENT_DATA > 0) |
| u8_t netif_alloc_client_data_id(void); |
| /** @ingroup netif_cd |
| * Set client data. Obtain ID from netif_alloc_client_data_id(). |
| */ |
| #define netif_set_client_data(netif, id, data) netif_get_client_data(netif, id) = (data) |
| /** @ingroup netif_cd |
| * Get client data. Obtain ID from netif_alloc_client_data_id(). |
| */ |
| #define netif_get_client_data(netif, id) (netif)->client_data[(id)] |
| #endif /* LWIP_DHCP || LWIP_AUTOIP || (LWIP_NUM_NETIF_CLIENT_DATA > 0) */ |
| |
| /** Generic data structure used for all lwIP network interfaces. |
| * The following fields should be filled in by the initialization |
| * function for the device driver: hwaddr_len, hwaddr[], mtu, flags */ |
| struct netif { |
| /** pointer to next in linked list */ |
| struct netif *next; |
| |
| #if LWIP_IPV4 |
| /** IP address configuration in network byte order */ |
| ip_addr_t ip_addr; |
| ip_addr_t netmask; |
| ip_addr_t gw; |
| #endif /* LWIP_IPV4 */ |
| #if LWIP_IPV6 |
| /** Array of IPv6 addresses for this netif. */ |
| ip_addr_t ip6_addr[LWIP_IPV6_NUM_ADDRESSES]; |
| /** The state of each IPv6 address (Tentative, Preferred, etc). |
| * @see ip6_addr.h */ |
| u8_t ip6_addr_state[LWIP_IPV6_NUM_ADDRESSES]; |
| #endif /* LWIP_IPV6 */ |
| /** This function is called by the network device driver |
| * to pass a packet up the TCP/IP stack. */ |
| netif_input_fn input; |
| #if LWIP_IPV4 |
| /** This function is called by the IP module when it wants |
| * to send a packet on the interface. This function typically |
| * first resolves the hardware address, then sends the packet. |
| * For ethernet physical layer, this is usually etharp_output() */ |
| netif_output_fn output; |
| #endif /* LWIP_IPV4 */ |
| /** This function is called by ethernet_output() when it wants |
| * to send a packet on the interface. This function outputs |
| * the pbuf as-is on the link medium. */ |
| netif_linkoutput_fn linkoutput; |
| #if LWIP_IPV6 |
| /** This function is called by the IPv6 module when it wants |
| * to send a packet on the interface. This function typically |
| * first resolves the hardware address, then sends the packet. |
| * For ethernet physical layer, this is usually ethip6_output() */ |
| netif_output_ip6_fn output_ip6; |
| #endif /* LWIP_IPV6 */ |
| #if LWIP_NETIF_STATUS_CALLBACK |
| /** This function is called when the netif state is set to up or down |
| */ |
| netif_status_callback_fn status_callback; |
| #endif /* LWIP_NETIF_STATUS_CALLBACK */ |
| #if LWIP_NETIF_LINK_CALLBACK |
| /** This function is called when the netif link is set to up or down |
| */ |
| netif_status_callback_fn link_callback; |
| #endif /* LWIP_NETIF_LINK_CALLBACK */ |
| #if LWIP_NETIF_REMOVE_CALLBACK |
| /** This function is called when the netif has been removed */ |
| netif_status_callback_fn remove_callback; |
| #endif /* LWIP_NETIF_REMOVE_CALLBACK */ |
| /** This field can be set by the device driver and could point |
| * to state information for the device. */ |
| void *state; |
| #ifdef netif_get_client_data |
| void* client_data[LWIP_NETIF_CLIENT_DATA_INDEX_MAX + LWIP_NUM_NETIF_CLIENT_DATA]; |
| #endif |
| #if LWIP_IPV6_AUTOCONFIG |
| /** is this netif enabled for IPv6 autoconfiguration */ |
| u8_t ip6_autoconfig_enabled; |
| #endif /* LWIP_IPV6_AUTOCONFIG */ |
| #if LWIP_IPV6_SEND_ROUTER_SOLICIT |
| /** Number of Router Solicitation messages that remain to be sent. */ |
| u8_t rs_count; |
| #endif /* LWIP_IPV6_SEND_ROUTER_SOLICIT */ |
| #if LWIP_NETIF_HOSTNAME |
| /* the hostname for this netif, NULL is a valid value */ |
| const char* hostname; |
| #endif /* LWIP_NETIF_HOSTNAME */ |
| #if LWIP_CHECKSUM_CTRL_PER_NETIF |
| u16_t chksum_flags; |
| #endif /* LWIP_CHECKSUM_CTRL_PER_NETIF*/ |
| /** maximum transfer unit (in bytes) */ |
| u16_t mtu; |
| /** number of bytes used in hwaddr */ |
| u8_t hwaddr_len; |
| /** link level hardware address of this interface */ |
| u8_t hwaddr[NETIF_MAX_HWADDR_LEN]; |
| /** flags (@see @ref netif_flags) */ |
| u8_t flags; |
| /** descriptive abbreviation */ |
| char name[2]; |
| /** number of this interface */ |
| u8_t num; |
| #if MIB2_STATS |
| /** link type (from "snmp_ifType" enum from snmp_mib2.h) */ |
| u8_t link_type; |
| /** (estimate) link speed */ |
| u32_t link_speed; |
| /** timestamp at last change made (up/down) */ |
| u32_t ts; |
| /** counters */ |
| struct stats_mib2_netif_ctrs mib2_counters; |
| #endif /* MIB2_STATS */ |
| #if LWIP_IPV4 && LWIP_IGMP |
| /** This function could be called to add or delete an entry in the multicast |
| filter table of the ethernet MAC.*/ |
| netif_igmp_mac_filter_fn igmp_mac_filter; |
| #endif /* LWIP_IPV4 && LWIP_IGMP */ |
| #if LWIP_IPV6 && LWIP_IPV6_MLD |
| /** This function could be called to add or delete an entry in the IPv6 multicast |
| filter table of the ethernet MAC. */ |
| netif_mld_mac_filter_fn mld_mac_filter; |
| #endif /* LWIP_IPV6 && LWIP_IPV6_MLD */ |
| #if LWIP_NETIF_HWADDRHINT |
| u8_t *addr_hint; |
| #endif /* LWIP_NETIF_HWADDRHINT */ |
| #if ENABLE_LOOPBACK |
| /* List of packets to be queued for ourselves. */ |
| struct pbuf *loop_first; |
| struct pbuf *loop_last; |
| #if LWIP_LOOPBACK_MAX_PBUFS |
| u16_t loop_cnt_current; |
| #endif /* LWIP_LOOPBACK_MAX_PBUFS */ |
| #endif /* ENABLE_LOOPBACK */ |
| }; |
| |
| #if LWIP_CHECKSUM_CTRL_PER_NETIF |
| #define NETIF_SET_CHECKSUM_CTRL(netif, chksumflags) do { \ |
| (netif)->chksum_flags = chksumflags; } while(0) |
| #define IF__NETIF_CHECKSUM_ENABLED(netif, chksumflag) if (((netif) == NULL) || (((netif)->chksum_flags & (chksumflag)) != 0)) |
| #else /* LWIP_CHECKSUM_CTRL_PER_NETIF */ |
| #define NETIF_SET_CHECKSUM_CTRL(netif, chksumflags) |
| #define IF__NETIF_CHECKSUM_ENABLED(netif, chksumflag) |
| #endif /* LWIP_CHECKSUM_CTRL_PER_NETIF */ |
| |
| /** The list of network interfaces. */ |
| extern struct netif *netif_list; |
| /** The default network interface. */ |
| extern struct netif *netif_default; |
| |
| void netif_init(void); |
| |
| struct netif *netif_add(struct netif *netif, |
| #if LWIP_IPV4 |
| const ip4_addr_t *ipaddr, const ip4_addr_t *netmask, const ip4_addr_t *gw, |
| #endif /* LWIP_IPV4 */ |
| void *state, netif_init_fn init, netif_input_fn input); |
| #if LWIP_IPV4 |
| void netif_set_addr(struct netif *netif, const ip4_addr_t *ipaddr, const ip4_addr_t *netmask, |
| const ip4_addr_t *gw); |
| #endif /* LWIP_IPV4 */ |
| void netif_remove(struct netif * netif); |
| |
| /* Returns a network interface given its name. The name is of the form |
| "et0", where the first two letters are the "name" field in the |
| netif structure, and the digit is in the num field in the same |
| structure. */ |
| struct netif *netif_find(const char *name); |
| |
| void netif_set_default(struct netif *netif); |
| |
| #if LWIP_IPV4 |
| void netif_set_ipaddr(struct netif *netif, const ip4_addr_t *ipaddr); |
| void netif_set_netmask(struct netif *netif, const ip4_addr_t *netmask); |
| void netif_set_gw(struct netif *netif, const ip4_addr_t *gw); |
| /** @ingroup netif_ip4 */ |
| #define netif_ip4_addr(netif) ((const ip4_addr_t*)ip_2_ip4(&((netif)->ip_addr))) |
| /** @ingroup netif_ip4 */ |
| #define netif_ip4_netmask(netif) ((const ip4_addr_t*)ip_2_ip4(&((netif)->netmask))) |
| /** @ingroup netif_ip4 */ |
| #define netif_ip4_gw(netif) ((const ip4_addr_t*)ip_2_ip4(&((netif)->gw))) |
| /** @ingroup netif_ip4 */ |
| #define netif_ip_addr4(netif) ((const ip_addr_t*)&((netif)->ip_addr)) |
| /** @ingroup netif_ip4 */ |
| #define netif_ip_netmask4(netif) ((const ip_addr_t*)&((netif)->netmask)) |
| /** @ingroup netif_ip4 */ |
| #define netif_ip_gw4(netif) ((const ip_addr_t*)&((netif)->gw)) |
| #endif /* LWIP_IPV4 */ |
| |
| void netif_set_up(struct netif *netif); |
| void netif_set_down(struct netif *netif); |
| /** @ingroup netif |
| * Ask if an interface is up |
| */ |
| #define netif_is_up(netif) (((netif)->flags & NETIF_FLAG_UP) ? (u8_t)1 : (u8_t)0) |
| |
| #if LWIP_NETIF_STATUS_CALLBACK |
| void netif_set_status_callback(struct netif *netif, netif_status_callback_fn status_callback); |
| #endif /* LWIP_NETIF_STATUS_CALLBACK */ |
| #if LWIP_NETIF_REMOVE_CALLBACK |
| void netif_set_remove_callback(struct netif *netif, netif_status_callback_fn remove_callback); |
| #endif /* LWIP_NETIF_REMOVE_CALLBACK */ |
| |
| void netif_set_link_up(struct netif *netif); |
| void netif_set_link_down(struct netif *netif); |
| /** Ask if a link is up */ |
| #define netif_is_link_up(netif) (((netif)->flags & NETIF_FLAG_LINK_UP) ? (u8_t)1 : (u8_t)0) |
| |
| #if LWIP_NETIF_LINK_CALLBACK |
| void netif_set_link_callback(struct netif *netif, netif_status_callback_fn link_callback); |
| #endif /* LWIP_NETIF_LINK_CALLBACK */ |
| |
| #if LWIP_NETIF_HOSTNAME |
| /** @ingroup netif */ |
| #define netif_set_hostname(netif, name) do { if((netif) != NULL) { (netif)->hostname = name; }}while(0) |
| /** @ingroup netif */ |
| #define netif_get_hostname(netif) (((netif) != NULL) ? ((netif)->hostname) : NULL) |
| #endif /* LWIP_NETIF_HOSTNAME */ |
| |
| #if LWIP_IGMP |
| /** @ingroup netif */ |
| #define netif_set_igmp_mac_filter(netif, function) do { if((netif) != NULL) { (netif)->igmp_mac_filter = function; }}while(0) |
| #define netif_get_igmp_mac_filter(netif) (((netif) != NULL) ? ((netif)->igmp_mac_filter) : NULL) |
| #endif /* LWIP_IGMP */ |
| |
| #if LWIP_IPV6 && LWIP_IPV6_MLD |
| /** @ingroup netif */ |
| #define netif_set_mld_mac_filter(netif, function) do { if((netif) != NULL) { (netif)->mld_mac_filter = function; }}while(0) |
| #define netif_get_mld_mac_filter(netif) (((netif) != NULL) ? ((netif)->mld_mac_filter) : NULL) |
| #define netif_mld_mac_filter(netif, addr, action) do { if((netif) && (netif)->mld_mac_filter) { (netif)->mld_mac_filter((netif), (addr), (action)); }}while(0) |
| #endif /* LWIP_IPV6 && LWIP_IPV6_MLD */ |
| |
| #if ENABLE_LOOPBACK |
| err_t netif_loop_output(struct netif *netif, struct pbuf *p); |
| void netif_poll(struct netif *netif); |
| #if !LWIP_NETIF_LOOPBACK_MULTITHREADING |
| void netif_poll_all(void); |
| #endif /* !LWIP_NETIF_LOOPBACK_MULTITHREADING */ |
| #endif /* ENABLE_LOOPBACK */ |
| |
| err_t netif_input(struct pbuf *p, struct netif *inp); |
| |
| #if LWIP_IPV6 |
| /** @ingroup netif_ip6 */ |
| #define netif_ip_addr6(netif, i) ((const ip_addr_t*)(&((netif)->ip6_addr[i]))) |
| /** @ingroup netif_ip6 */ |
| #define netif_ip6_addr(netif, i) ((const ip6_addr_t*)ip_2_ip6(&((netif)->ip6_addr[i]))) |
| void netif_ip6_addr_set(struct netif *netif, s8_t addr_idx, const ip6_addr_t *addr6); |
| void netif_ip6_addr_set_parts(struct netif *netif, s8_t addr_idx, u32_t i0, u32_t i1, u32_t i2, u32_t i3); |
| #define netif_ip6_addr_state(netif, i) ((netif)->ip6_addr_state[i]) |
| void netif_ip6_addr_set_state(struct netif* netif, s8_t addr_idx, u8_t state); |
| s8_t netif_get_ip6_addr_match(struct netif *netif, const ip6_addr_t *ip6addr); |
| void netif_create_ip6_linklocal_address(struct netif *netif, u8_t from_mac_48bit); |
| err_t netif_add_ip6_address(struct netif *netif, const ip6_addr_t *ip6addr, s8_t *chosen_idx); |
| #define netif_set_ip6_autoconfig_enabled(netif, action) do { if(netif) { (netif)->ip6_autoconfig_enabled = (action); }}while(0) |
| #endif /* LWIP_IPV6 */ |
| |
| #if LWIP_NETIF_HWADDRHINT |
| #define NETIF_SET_HWADDRHINT(netif, hint) ((netif)->addr_hint = (hint)) |
| #else /* LWIP_NETIF_HWADDRHINT */ |
| #define NETIF_SET_HWADDRHINT(netif, hint) |
| #endif /* LWIP_NETIF_HWADDRHINT */ |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* LWIP_HDR_NETIF_H */ |