/* * 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. *  */ #ifndef __LWIP_NETIFAPI_H__#define __LWIP_NETIFAPI_H__#include "lwip/opt.h"#if LWIP_NETIF_API /* don't build if not configured for use in lwipopts.h */#include "lwip/sys.h"#include "lwip/netif.h"#include "lwip/dhcp.h"#include "lwip/autoip.h"#ifdef __cplusplusextern "C" {#endifstruct netifapi_msg_msg {#if !LWIP_TCPIP_CORE_LOCKING  sys_sem_t sem;#endif /* !LWIP_TCPIP_CORE_LOCKING */  err_t err;  struct netif *netif;  union {    struct {      struct ip_addr *ipaddr;      struct ip_addr *netmask;      struct ip_addr *gw;      void *state;      err_t (* init) (struct netif *netif);      err_t (* input)(struct pbuf *p, struct netif *netif);    } add;    struct {      void  (* voidfunc)(struct netif *netif);      err_t (* errtfunc)(struct netif *netif);    } common;  } msg;};struct netifapi_msg {  void (* function)(struct netifapi_msg_msg *msg);  struct netifapi_msg_msg msg;};/* API for application */err_t netifapi_netif_add       ( struct netif *netif,                                 struct ip_addr *ipaddr,                                 struct ip_addr *netmask,                                 struct ip_addr *gw,                                 void *state,                                 err_t (* init)(struct netif *netif),                                 err_t (* input)(struct pbuf *p, struct netif *netif) );err_t netifapi_netif_common    ( struct netif *netif,                                 void  (* voidfunc)(struct netif *netif),                                 err_t (* errtfunc)(struct netif *netif) );#define netifapi_netif_remove(n)      netifapi_netif_common(n, netif_remove, NULL)#define netifapi_netif_set_up(n)      netifapi_netif_common(n, netif_set_up, NULL)#define netifapi_netif_set_down(n)    netifapi_netif_common(n, netif_set_down, NULL)#define netifapi_netif_set_default(n) netifapi_netif_common(n, netif_set_default, NULL)#define netifapi_dhcp_start(n)        netifapi_netif_common(n, NULL, dhcp_start)#define netifapi_dhcp_stop(n)         netifapi_netif_common(n, dhcp_stop, NULL)#define netifapi_autoip_start(n)      netifapi_netif_common(n, NULL, autoip_start)#define netifapi_autoip_stop(n)       netifapi_netif_common(n, NULL, autoip_stop)#ifdef __cplusplus}#endif#endif /* LWIP_NETIF_API */#endif /* __LWIP_NETIFAPI_H__ */