e743d03a78
* This fixes the problem of axTLS symbols hmac_md5/hmac_sha1 having same name as symbols in libwpa (which have incompatible signatures) * Also allows for easier identification and piece-by-piece removal of binary functions. * Some libc symbols are not renamed, list is in lib/symbols_norename.txt
124 lines
3.9 KiB
C
124 lines
3.9 KiB
C
/* LWIP interface to the ESP WLAN MAC layer driver.
|
|
|
|
Based on the sample driver in ethernetif.c. Tweaks based on
|
|
examining esp-lwip eagle_if.c and observed behaviour of the ESP
|
|
RTOS liblwip.a.
|
|
|
|
libnet80211.a calls into ethernetif_init & ethernetif_input.
|
|
|
|
* Copyright (c) 2001-2003 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.
|
|
*
|
|
* Original Author: Simon Goldschmidt
|
|
* Modified by Angus Gratton based on work by @kadamski/Espressif via esp-lwip project.
|
|
*/
|
|
#include "lwip/opt.h"
|
|
|
|
#include "lwip/def.h"
|
|
#include "lwip/mem.h"
|
|
#include "lwip/pbuf.h"
|
|
#include <lwip/stats.h>
|
|
#include <lwip/snmp.h>
|
|
#include "netif/etharp.h"
|
|
|
|
/* declared in libnet80211.a */
|
|
int8_t sdk_ieee80211_output_pbuf(struct netif *ifp, struct pbuf* pb);
|
|
|
|
static err_t
|
|
low_level_output(struct netif *netif, struct pbuf *p)
|
|
{
|
|
struct pbuf *q;
|
|
|
|
for(q = p; q != NULL; q = q->next) {
|
|
sdk_ieee80211_output_pbuf(netif, q);
|
|
}
|
|
|
|
LINK_STATS_INC(link.xmit);
|
|
|
|
return ERR_OK;
|
|
}
|
|
|
|
|
|
err_t ethernetif_init(struct netif *netif)
|
|
{
|
|
LWIP_ASSERT("netif != NULL", (netif != NULL));
|
|
|
|
#if LWIP_NETIF_HOSTNAME
|
|
/* Initialize interface hostname */
|
|
netif->hostname = "lwip";
|
|
#endif /* LWIP_NETIF_HOSTNAME */
|
|
|
|
/*
|
|
* Initialize the snmp variables and counters inside the struct netif.
|
|
* The last argument should be replaced with your link speed, in units
|
|
* of bits per second.
|
|
*/
|
|
NETIF_INIT_SNMP(netif, snmp_ifType_ethernet_csmacd, LINK_SPEED_OF_YOUR_NETIF_IN_BPS);
|
|
|
|
// don't touch netif->state here, the field is used internally in the ESP SDK layers
|
|
netif->name[0] = 'e';
|
|
netif->name[1] = 'n';
|
|
netif->output = etharp_output;
|
|
netif->linkoutput = low_level_output;
|
|
|
|
/* low_level_init components */
|
|
netif->hwaddr_len = 6;
|
|
/* hwaddr seems to be set elsewhere, or (more likely) is set on tx by MAC layer */
|
|
netif->mtu = 1500;
|
|
netif->flags = NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP;
|
|
|
|
return ERR_OK;
|
|
}
|
|
|
|
/* called from ieee80211_deliver_data with new IP frames */
|
|
void ethernetif_input(struct netif *netif, struct pbuf *p)
|
|
{
|
|
struct eth_hdr *ethhdr = p->payload;
|
|
/* examine packet payloads ethernet header */
|
|
|
|
|
|
switch(htons(ethhdr->type)) {
|
|
/* IP or ARP packet? */
|
|
case ETHTYPE_IP:
|
|
case ETHTYPE_ARP:
|
|
// case ETHTYPE_IPV6:
|
|
/* full packet send to tcpip_thread to process */
|
|
if (netif->input(p, netif)!=ERR_OK)
|
|
{
|
|
LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_input: IP input error\n"));
|
|
pbuf_free(p);
|
|
p = NULL;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
pbuf_free(p);
|
|
p = NULL;
|
|
break;
|
|
}
|
|
}
|