esp-idf/components/lwip/port/esp32/netif/nettestif.c

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#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 "lwip/ethip6.h"
#include "netif/etharp.h"
#include "netif/wlanif.h"
#include <stdio.h>
#include <string.h>
#include "tcpip_adapter.h"
static struct netif *g_last_netif = NULL;
err_t nettestif_output(struct netif *netif, struct pbuf *p)
{
int i;
char *dat = p->payload;
/* output the packet to stdout */
printf("\nPacketOut:[");
for (i=0; i<p->len; i++) {
printf("%02x", *dat++);
}
printf("]\n");
return ERR_OK;
}
err_t nettestif_init(struct netif *netif)
{
g_last_netif = netif;
netif->hostname = CONFIG_LWIP_LOCAL_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, 100);
/* We directly use etharp_output() here to save a function call.
* You can instead declare your own function an call etharp_output()
* from it if you have to do some checks before sending (e.g. if link
* is available...) */
netif->output = etharp_output;
#if LWIP_IPV6
netif->output_ip6 = ethip6_output;
#endif /* LWIP_IPV6 */
netif->linkoutput = nettestif_output;
/* set MAC hardware address length */
netif->hwaddr_len = ETHARP_HWADDR_LEN;
/* set MAC hardware address */
/* maximum transfer unit */
netif->mtu = 1500;
/* device capabilities */
/* don't set NETIF_FLAG_ETHARP if this device is not an ethernet one */
netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP;
#if ESP_LWIP
#if LWIP_IGMP
netif->flags |= NETIF_FLAG_IGMP;
#endif
#endif
return ERR_OK;
}
void nettestif_input(void *buffer, u16_t len)
{
struct pbuf *p;
if (g_last_netif == NULL) {
printf("error!");
return;
}
printf("simul in: %d\n", len);
if (len==0) return;
p = pbuf_alloc(PBUF_RAW, len, PBUF_RAM);
p->l2_owner = NULL;
memcpy(p->payload, buffer, len);
/* full packet send to tcpip_thread to process
* on success - the packet is processed and deallocated in tcpip stack
* on failure - log error and deallocate the packet
*/
if (g_last_netif->input(p, g_last_netif) != ERR_OK) {
LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_input: IP input error\n"));
pbuf_free(p);
}
}