//*****************************************************************************
//
//! Change the configuration of the lwIP network interface.
//!
//! \param ulIPAddr is the new IP address to be used (static).
//! \param ulNetMask is the new network mask to be used (static).
//! \param ulGWAddr is the new Gateway address to be used (static).
//! \param ulIPMode is the IP Address Mode. \b IPADDR_USE_STATIC 0 will force
//! static IP addressing to be used, \b IPADDR_USE_DHCP will force DHCP with
//! fallback to Link Local (Auto IP), while \b IPADDR_USE_AUTOIP will force
//! Link Local only.
//!
//! This function will evaluate the new configuration data. If necessary, the
//! interface will be brought down, reconfigured, and then brought back up
//! with the new configuration.
//!
//! \return None.
//
//*****************************************************************************
void lwIPNetworkConfigChange(struct netif *netif, IP_CONFIG * ipCfg)
{
struct ip_addr ip_addr;
struct ip_addr net_mask;
struct ip_addr gw_addr;
IP_CONFIG currentIPConfig;
// Check the parameters.
#if LWIP_DHCP && LWIP_AUTOIP
ASSERT((ipCfg->IPMode == IPADDR_USE_STATIC) ||
(ipCfg->IPMode == IPADDR_USE_DHCP) ||
(ipCfg->IPMode == IPADDR_USE_AUTOIP))
#elif LWIP_DHCP
ASSERT((ipCfg->IPMode == IPADDR_USE_STATIC) ||
(ipCfg->IPMode == IPADDR_USE_DHCP))
#elif LWIP_AUTOIP
ASSERT((ipCfg->IPMode == IPADDR_USE_STATIC) ||
(ipCfg->IPMode == IPADDR_USE_AUTOIP))
#else
ASSERT(ipCfg->IPMode == IPADDR_USE_STATIC)
#endif
// Setup the network address values.
if (ipCfg->IPMode == IPADDR_USE_STATIC)
{
ip_addr.addr = htonl(ipCfg->IPAddr);
net_mask.addr = htonl(ipCfg->NetMask);
gw_addr.addr = htonl(ipCfg->GWAddr);
}
#if LWIP_DHCP || LWIP_AUTOIP
else
{
ip_addr.addr = 0;
net_mask.addr = 0;
gw_addr.addr = 0;
}
#endif
// Switch on the current IP Address Aquisition mode.
currentIPConfig.IPMode = IPADDR_USE_DHCP;
LWIPServiceTaskIPConfigGet(netif, ¤tIPConfig);
switch (currentIPConfig.IPMode)
{
// Static IP
case IPADDR_USE_STATIC:
{
// Set the new address parameters. This will change the address
// configuration in lwIP, and if necessary, will reset any links
// that are active. This is valid for all three modes.
//
netif_set_addr(netif, &ip_addr, &net_mask, &gw_addr);
// If we are going to DHCP mode, then start the DHCP server now.
#if LWIP_DHCP
if (ipCfg->IPMode == IPADDR_USE_DHCP)
{
dhcp_start(netif);
}
#endif
// If we are going to AutoIP mode, then start the AutoIP process
// now.
#if LWIP_AUTOIP
if (ipCfg->IPMode == IPADDR_USE_AUTOIP)
{
autoip_start(netif);
}
#endif
// And we're done.
break;
}
// DHCP (with AutoIP fallback).
#if LWIP_DHCP
case IPADDR_USE_DHCP:
{
//
// If we are going to static IP addressing, then disable DHCP and
// force the new static IP address.
//
if (ipCfg->IPMode == IPADDR_USE_STATIC)
{
dhcp_stop(netif);
// SEE bug http://savannah.nongnu.org/bugs/?22804
netif->flags &= ~NETIF_FLAG_DHCP;
netif_set_addr(netif, &ip_addr, &net_mask, &gw_addr);
}
// If we are going to AUTO IP addressing, then disable DHCP, set
// the default addresses, and start AutoIP.
#if LWIP_AUTOIP
else if (ipCfg->IPMode == IPADDR_USE_AUTOIP)
{
dhcp_stop(netif);
netif_set_addr(netif, &ip_addr, &net_mask, &gw_addr);
autoip_start(netif);
}
#endif
break;
}
#endif
// AUTOIP
#if LWIP_AUTOIP
case IPADDR_USE_AUTOIP:
{
//
// If we are going to static IP addressing, then disable AutoIP and
// force the new static IP address.
//
if (ulIPMode == IPADDR_USE_STATIC)
{
autoip_stop(netif);
netif_set_addr(netif, &ip_addr, &net_mask, &gw_addr);
}
//
// If we are going to DHCP addressing, then disable AutoIP, set the
// default addresses, and start dhcp.
//
#if LWIP_DHCP
else if (ulIPMode == IPADDR_USE_AUTOIP)
{
autoip_stop(netif);
netif_set_addr(netif, &ip_addr, &net_mask, &gw_addr);
dhcp_start(netif);
}
#endif
break;
}
#endif
}
}
void ethernetThread(void *pParams)
{
IP_CONFIG ipconfig;
unsigned char hwaddr[6] = {0, 0, 0, 0, 0, 0};
char s[64]; /* sprintf string */
ETHServiceTaskInit(0);
ETHServiceTaskFlush(0,ETH_FLUSH_RX | ETH_FLUSH_TX);
/*
* Allow make SET_IP_ADR="-D SET_IP_ADR=\"(192<<24|168<<16|98<<8|29)\""
* to build application with a recovery IP address.
*/
#ifndef SET_IP_ADR
#define SET_IP_ADR 0
#endif
if (SET_IP_ADR) {
ipconfig.IPMode = IPADDR_USE_STATIC;
ipconfig.IPAddr = SET_IP_ADR;
#ifndef SET_NET_MASK
#define SET_NET_MASK 0xffffff00
#endif
ipconfig.NetMask = SET_NET_MASK;
#ifndef SET_GW_ADR
#define SET_GW_ADR (((SET_IP_ADR)&(SET_NET_MASK))|0x00000001)
#endif
ipconfig.GWAddr = SET_GW_ADR;
} else {
ipconfig.IPMode = usercfg.IPMode;
ipconfig.IPAddr =
IP2LONG(usercfg.ip[0],
usercfg.ip[1],
usercfg.ip[2],
usercfg.ip[3]);
ipconfig.NetMask =
IP2LONG(usercfg.netmask[0],
usercfg.netmask[1],
usercfg.netmask[2],
usercfg.netmask[3]);
ipconfig.GWAddr=
IP2LONG(usercfg.gateway[0],
usercfg.gateway[1],
usercfg.gateway[2],
usercfg.gateway[3]);
}
LWIPServiceTaskInit(&ipconfig);
/*
* Get actual MAC and IP address programmed
*/
EthernetMACAddrGet(ETH_BASE, &hwaddr[0]);
LWIPServiceTaskIPConfigGet(&lwip_netif, &ipconfig);
/*
* Print Ethernet configuration to serial
*/
lprintf("\r\n");
lprintf("MAC: %02X:%02X:%02X:%02X:%02X:%02X\r\n", hwaddr[0],
hwaddr[1], hwaddr[2], hwaddr[3], hwaddr[4], hwaddr[5]);
lprintf(" IP: %d.%d.%d.%d\r\n",
ipconfig.IPAddr>>0 & 0xff,
ipconfig.IPAddr>>8 & 0xff,
ipconfig.IPAddr>>16 & 0xff,
ipconfig.IPAddr>>24 & 0xff );
lprintf("\r\n");
#if (PART == LM3S8962)
/*
* Print Ethernet configuration to OLED screen
*/
sprintf(s, "MAC %02X:%02X:%02X:%02X:%02X:%02X", hwaddr[0],
hwaddr[1], hwaddr[2], hwaddr[3], hwaddr[4], hwaddr[5]);
RIT128x96x4StringDraw(s, 0, RITLINE(5), 15);
sprintf(s, "IP %d.%d.%d.%d",
ipconfig.IPAddr>>0 & 0xff,
ipconfig.IPAddr>>8 & 0xff,
ipconfig.IPAddr>>16 & 0xff,
ipconfig.IPAddr>>24 & 0xff );
RIT128x96x4StringDraw(s, 0, RITLINE(6), 15);
#endif
syslogInit();
syslog(facility_local0 , level_err, "A message from QuickStart" );
/* Nothing else to do. No point hanging around. */
vTaskDelete( NULL);
/* We should not get here. */
return;
}
