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/**
* @file
* Network Interface Sequential API module
*
*/
/*
* 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.
*
*/
#include "lwip/opt.h"
#if LWIP_NETIF_API /* don't build if not configured for use in lwipopts.h */
#include "lwip/netifapi.h"
#include "lwip/tcpip.h"
#include "lwip/memp.h"
#define NETIFAPI_VAR_REF(name) API_VAR_REF(name)
#define NETIFAPI_VAR_DECLARE(name) API_VAR_DECLARE(struct netifapi_msg, name)
#define NETIFAPI_VAR_ALLOC(name) API_VAR_ALLOC(struct netifapi_msg, MEMP_NETIFAPI_MSG, name)
#define NETIFAPI_VAR_FREE(name) API_VAR_FREE(MEMP_NETIFAPI_MSG, name)
/**
* Call netif_add() inside the tcpip_thread context.
*/
static void
netifapi_do_netif_add(struct netifapi_msg_msg *msg)
{
if (!netif_add( msg->netif,
API_EXPR_REF(msg->msg.add.ipaddr),
API_EXPR_REF(msg->msg.add.netmask),
API_EXPR_REF(msg->msg.add.gw),
msg->msg.add.state,
msg->msg.add.init,
msg->msg.add.input)) {
msg->err = ERR_IF;
} else {
msg->err = ERR_OK;
}
TCPIP_NETIFAPI_ACK(msg);
}
/**
* Call netif_set_addr() inside the tcpip_thread context.
*/
static void
netifapi_do_netif_set_addr(struct netifapi_msg_msg *msg)
{
netif_set_addr( msg->netif,
API_EXPR_REF(msg->msg.add.ipaddr),
API_EXPR_REF(msg->msg.add.netmask),
API_EXPR_REF(msg->msg.add.gw));
msg->err = ERR_OK;
TCPIP_NETIFAPI_ACK(msg);
}
/**
* Call the "errtfunc" (or the "voidfunc" if "errtfunc" is NULL) inside the
* tcpip_thread context.
*/
static void
netifapi_do_netif_common(struct netifapi_msg_msg *msg)
{
if (msg->msg.common.errtfunc != NULL) {
msg->err = msg->msg.common.errtfunc(msg->netif);
} else {
msg->err = ERR_OK;
msg->msg.common.voidfunc(msg->netif);
}
TCPIP_NETIFAPI_ACK(msg);
}
/**
* Call netif_add() in a thread-safe way by running that function inside the
* tcpip_thread context.
*
* @note for params @see netif_add()
*/
err_t
netifapi_netif_add(struct netif *netif,
ip_addr_t *ipaddr,
ip_addr_t *netmask,
ip_addr_t *gw,
void *state,
netif_init_fn init,
netif_input_fn input)
{
err_t err;
NETIFAPI_VAR_DECLARE(msg);
NETIFAPI_VAR_ALLOC(msg);
#if LWIP_MPU_COMPATIBLE
if (ipaddr == NULL) {
ipaddr = IP_ADDR_ANY;
}
if (netmask == NULL) {
netmask = IP_ADDR_ANY;
}
if (gw == NULL) {
gw = IP_ADDR_ANY;
}
#endif /* LWIP_MPU_COMPATIBLE */
NETIFAPI_VAR_REF(msg).function = netifapi_do_netif_add;
NETIFAPI_VAR_REF(msg).msg.netif = netif;
NETIFAPI_VAR_REF(msg).msg.msg.add.ipaddr = NETIFAPI_VAR_REF(ipaddr);
NETIFAPI_VAR_REF(msg).msg.msg.add.netmask = NETIFAPI_VAR_REF(netmask);
NETIFAPI_VAR_REF(msg).msg.msg.add.gw = NETIFAPI_VAR_REF(gw);
NETIFAPI_VAR_REF(msg).msg.msg.add.state = state;
NETIFAPI_VAR_REF(msg).msg.msg.add.init = init;
NETIFAPI_VAR_REF(msg).msg.msg.add.input = input;
TCPIP_NETIFAPI(&API_VAR_REF(msg));
err = NETIFAPI_VAR_REF(msg).msg.err;
NETIFAPI_VAR_FREE(msg);
return err;
}
/**
* Call netif_set_addr() in a thread-safe way by running that function inside the
* tcpip_thread context.
*
* @note for params @see netif_set_addr()
*/
err_t
netifapi_netif_set_addr(struct netif *netif,
ip_addr_t *ipaddr,
ip_addr_t *netmask,
ip_addr_t *gw)
{
err_t err;
NETIFAPI_VAR_DECLARE(msg);
NETIFAPI_VAR_ALLOC(msg);
#if LWIP_MPU_COMPATIBLE
if (ipaddr == NULL) {
ipaddr = IP_ADDR_ANY;
}
if (netmask == NULL) {
netmask = IP_ADDR_ANY;
}
if (gw == NULL) {
gw = IP_ADDR_ANY;
}
#endif /* LWIP_MPU_COMPATIBLE */
NETIFAPI_VAR_REF(msg).function = netifapi_do_netif_set_addr;
NETIFAPI_VAR_REF(msg).msg.netif = netif;
NETIFAPI_VAR_REF(msg).msg.msg.add.ipaddr = NETIFAPI_VAR_REF(ipaddr);
NETIFAPI_VAR_REF(msg).msg.msg.add.netmask = NETIFAPI_VAR_REF(netmask);
NETIFAPI_VAR_REF(msg).msg.msg.add.gw = NETIFAPI_VAR_REF(gw);
TCPIP_NETIFAPI(&API_VAR_REF(msg));
err = NETIFAPI_VAR_REF(msg).msg.err;
NETIFAPI_VAR_FREE(msg);
return err;
}
/**
* call the "errtfunc" (or the "voidfunc" if "errtfunc" is NULL) in a thread-safe
* way by running that function inside the tcpip_thread context.
*
* @note use only for functions where there is only "netif" parameter.
*/
err_t
netifapi_netif_common(struct netif *netif, netifapi_void_fn voidfunc,
netifapi_errt_fn errtfunc)
{
err_t err;
NETIFAPI_VAR_DECLARE(msg);
NETIFAPI_VAR_ALLOC(msg);
NETIFAPI_VAR_REF(msg).function = netifapi_do_netif_common;
NETIFAPI_VAR_REF(msg).msg.netif = netif;
NETIFAPI_VAR_REF(msg).msg.msg.common.voidfunc = voidfunc;
NETIFAPI_VAR_REF(msg).msg.msg.common.errtfunc = errtfunc;
TCPIP_NETIFAPI(&API_VAR_REF(msg));
err = NETIFAPI_VAR_REF(msg).msg.err;
NETIFAPI_VAR_FREE(msg);
return err;
}
#endif /* LWIP_NETIF_API */
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