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net_lwip_webserver: allow users to enable LWIP_IP6 if desired

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This commit is contained in:
Peter Lawrence
2021-10-15 20:10:19 -05:00
parent 4bfab30c02
commit d42b5604ce
7 changed files with 66 additions and 30 deletions
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40
examples/device/net_lwip_webserver/src/main.c
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@@ -50,8 +50,11 @@ try changing the first byte of tud_network_mac_address[] below from 0x02 to 0x00
#include "dnserver.h"
#include "lwip/init.h"
#include "lwip/timeouts.h"
#include "lwip/ethip6.h"
#include "httpd.h"
#define INIT_IP4(a,b,c,d) { PP_HTONL(LWIP_MAKEU32(a,b,c,d)) }
/* lwip context */
static struct netif netif_data;
@@ -64,24 +67,24 @@ static struct pbuf *received_frame;
const uint8_t tud_network_mac_address[6] = {0x02,0x02,0x84,0x6A,0x96,0x00};
/* network parameters of this MCU */
static const ip_addr_t ipaddr = IPADDR4_INIT_BYTES(192, 168, 7, 1);
static const ip_addr_t netmask = IPADDR4_INIT_BYTES(255, 255, 255, 0);
static const ip_addr_t gateway = IPADDR4_INIT_BYTES(0, 0, 0, 0);
static const ip4_addr_t ipaddr = INIT_IP4(192, 168, 7, 1);
static const ip4_addr_t netmask = INIT_IP4(255, 255, 255, 0);
static const ip4_addr_t gateway = INIT_IP4(0, 0, 0, 0);
/* database IP addresses that can be offered to the host; this must be in RAM to store assigned MAC addresses */
static dhcp_entry_t entries[] =
{
/* mac ip address lease time */
{ {0}, IPADDR4_INIT_BYTES(192, 168, 7, 2), 24 * 60 * 60 },
{ {0}, IPADDR4_INIT_BYTES(192, 168, 7, 3), 24 * 60 * 60 },
{ {0}, IPADDR4_INIT_BYTES(192, 168, 7, 4), 24 * 60 * 60 },
{ {0}, INIT_IP4(192, 168, 7, 2), 24 * 60 * 60 },
{ {0}, INIT_IP4(192, 168, 7, 3), 24 * 60 * 60 },
{ {0}, INIT_IP4(192, 168, 7, 4), 24 * 60 * 60 },
};
static const dhcp_config_t dhcp_config =
{
.router = IPADDR4_INIT_BYTES(0, 0, 0, 0), /* router address (if any) */
.router = INIT_IP4(0, 0, 0, 0), /* router address (if any) */
.port = 67, /* listen port */
.dns = IPADDR4_INIT_BYTES(192, 168, 7, 1), /* dns server (if any) */
.dns = INIT_IP4(192, 168, 7, 1), /* dns server (if any) */
"usb", /* dns suffix */
TU_ARRAY_SIZE(entries), /* num entry */
entries /* entries */
@@ -108,11 +111,18 @@ static err_t linkoutput_fn(struct netif *netif, struct pbuf *p)
}
}
static err_t output_fn(struct netif *netif, struct pbuf *p, const ip_addr_t *addr)
static err_t ip4_output_fn(struct netif *netif, struct pbuf *p, const ip4_addr_t *addr)
{
return etharp_output(netif, p, addr);
}
#if LWIP_IPV6
static err_t ip6_output_fn(struct netif *netif, struct pbuf *p, const ip6_addr_t *addr)
{
return ethip6_output(netif, p, addr);
}
#endif
static err_t netif_init_cb(struct netif *netif)
{
LWIP_ASSERT("netif != NULL", (netif != NULL));
@@ -122,7 +132,10 @@ static err_t netif_init_cb(struct netif *netif)
netif->name[0] = 'E';
netif->name[1] = 'X';
netif->linkoutput = linkoutput_fn;
netif->output = output_fn;
netif->output = ip4_output_fn;
#if LWIP_IPV6
netif->output_ip6 = ip6_output_fn;
#endif
return ERR_OK;
}
@@ -138,11 +151,14 @@ static void init_lwip(void)
netif->hwaddr[5] ^= 0x01;
netif = netif_add(netif, &ipaddr, &netmask, &gateway, NULL, netif_init_cb, ip_input);
#if LWIP_IPV6
netif_create_ip6_linklocal_address(netif, 1);
#endif
netif_set_default(netif);
}
/* handle any DNS requests from dns-server */
bool dns_query_proc(const char *name, ip_addr_t *addr)
bool dns_query_proc(const char *name, ip4_addr_t *addr)
{
if (0 == strcmp(name, "tiny.usb"))
{
@@ -218,7 +234,7 @@ int main(void)
init_lwip();
while (!netif_is_up(&netif_data));
while (dhserv_init(&dhcp_config) != ERR_OK);
while (dnserv_init(&ipaddr, 53, dns_query_proc) != ERR_OK);
while (dnserv_init(IP_ADDR_ANY, 53, dns_query_proc) != ERR_OK);
httpd_init();
while (1)