FreeRTOS/Common/ethernet/lwIP_130/src/api/netifapi.c

   1 /**
   2  * @file
   3  * Network Interface Sequential API module
   4  *
   5  */
   6
   7 /*
   8  * Redistribution and use in source and binary forms, with or without modification,
   9  * are permitted provided that the following conditions are met:
  10  *
  11  * 1. Redistributions of source code must retain the above copyright notice,
  12  *    this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright notice,
  14  *    this list of conditions and the following disclaimer in the documentation
  15  *    and/or other materials provided with the distribution.
  16  * 3. The name of the author may not be used to endorse or promote products
  17  *    derived from this software without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
  20  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  21  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
  22  * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  23  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
  24  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  27  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
  28  * OF SUCH DAMAGE.
  29  *
  30  * This file is part of the lwIP TCP/IP stack.
  31  *
  32  */
  33
  34 #include "lwip/opt.h"
  35
  36 #if LWIP_NETIF_API /* don't build if not configured for use in lwipopts.h */
  37
  38 #include "lwip/netifapi.h"
  39 #include "lwip/tcpip.h"
  40
  41 /**
  42  * Call netif_add() inside the tcpip_thread context.
  43  */
  44 void
  45 do_netifapi_netif_add( struct netifapi_msg_msg *msg)
  46 {
  47   if (!netif_add( msg->netif,
  48                   msg->msg.add.ipaddr,
  49                   msg->msg.add.netmask,
  50                   msg->msg.add.gw,
  51                   msg->msg.add.state,
  52                   msg->msg.add.init,
  53                   msg->msg.add.input)) {
  54     msg->err = ERR_IF;
  55   } else {
  56     msg->err = ERR_OK;
  57   }
  58   TCPIP_NETIFAPI_ACK(msg);
  59 }
  60
  61 /**
  62  * Call the "errtfunc" (or the "voidfunc" if "errtfunc" is NULL) inside the
  63  * tcpip_thread context.
  64  */
  65 void
  66 do_netifapi_netif_common( struct netifapi_msg_msg *msg)
  67 {
  68   if (msg->msg.common.errtfunc!=NULL) {
  69     msg->err =
  70     msg->msg.common.errtfunc(msg->netif);
  71   } else {
  72     msg->err = ERR_OK;
  73     msg->msg.common.voidfunc(msg->netif);
  74   }
  75   TCPIP_NETIFAPI_ACK(msg);
  76 }
  77
  78 /**
  79  * Call netif_add() in a thread-safe way by running that function inside the
  80  * tcpip_thread context.
  81  *
  82  * @note for params @see netif_add()
  83  */
  84 err_t
  85 netifapi_netif_add(struct netif *netif,
  86                    struct ip_addr *ipaddr,
  87                    struct ip_addr *netmask,
  88                    struct ip_addr *gw,
  89                    void *state,
  90                    err_t (* init)(struct netif *netif),
  91                    err_t (* input)(struct pbuf *p, struct netif *netif))
  92 {
  93   struct netifapi_msg msg;
  94   msg.function = do_netifapi_netif_add;
  95   msg.msg.netif = netif;
  96   msg.msg.msg.add.ipaddr  = ipaddr;
  97   msg.msg.msg.add.netmask = netmask;
  98   msg.msg.msg.add.gw      = gw;
  99   msg.msg.msg.add.state   = state;
 100   msg.msg.msg.add.init    = init;
 101   msg.msg.msg.add.input   = input;
 102   TCPIP_NETIFAPI(&msg);
 103   return msg.msg.err;
 104 }
 105
 106 /**
 107  * call the "errtfunc" (or the "voidfunc" if "errtfunc" is NULL) in a thread-safe
 108  * way by running that function inside the tcpip_thread context.
 109  *
 110  * @note use only for functions where there is only "netif" parameter.
 111  */
 112 err_t
 113 netifapi_netif_common( struct netif *netif,
 114                        void  (* voidfunc)(struct netif *netif),
 115                        err_t (* errtfunc)(struct netif *netif) )
 116 {
 117   struct netifapi_msg msg;
 118   msg.function = do_netifapi_netif_common;
 119   msg.msg.netif = netif;
 120   msg.msg.msg.common.voidfunc = voidfunc;
 121   msg.msg.msg.common.errtfunc = errtfunc;
 122   TCPIP_NETIFAPI(&msg);
 123   return msg.msg.err;
 124 }
 125
 126 #endif /* LWIP_NETIF_API */