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lwip: add IPv4 support for netdev_tap

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Martine S. Lenders 2020-05-26 20:51:08 +02:00
parent eee5bf178d
commit f5c4a05281
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1 changed files with 21 additions and 0 deletions
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21
pkg/lwip/contrib/lwip.c
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@ -13,6 +13,11 @@
* @author Martine Lenders <mlenders@inf.fu-berlin.de>
*/
#include "kernel_defines.h"
#if IS_USED(MODULE_LWIP_DHCP_AUTO)
#include "lwip/dhcp.h"
#endif
#include "lwip/tcpip.h"
#include "lwip/netif/netdev.h"
#include "lwip/netif.h"
@ -138,11 +143,20 @@ void lwip_bootstrap(void)
#ifdef MODULE_NETDEV_TAP
for (unsigned i = 0; i < LWIP_NETIF_NUMOF; i++) {
netdev_tap_setup(&netdev_taps[i], &netdev_tap_params[i]);
#ifdef MODULE_LWIP_IPV4
if (netif_add(&netif[i], IP4_ADDR_ANY, IP4_ADDR_ANY, IP4_ADDR_ANY,
&netdev_taps[i], lwip_netdev_init,
tcpip_input) == NULL) {
DEBUG("Could not add netdev_tap device\n");
return;
}
#else /* MODULE_LWIP_IPV4 */
if (netif_add(&netif[i], &netdev_taps[i], lwip_netdev_init,
tcpip_input) == NULL) {
DEBUG("Could not add netdev_tap device\n");
return;
}
#endif /* MODULE_LWIP_IPV4 */
}
#elif defined(MODULE_MRF24J40)
for (unsigned i = 0; i < LWIP_NETIF_NUMOF; i++) {
@ -241,6 +255,13 @@ void lwip_bootstrap(void)
#endif
/* also allow for external interface definition */
tcpip_init(NULL, NULL);
#if IS_USED(MODULE_LWIP_DHCP_AUTO) && IS_USED(MODULE_NETDEV_TAP)
/* XXX: Hack to get DHCP with IPv4 with `netdev_tap`, as it does
* not emit a `NETDEV_EVENT_LINK_UP` event. Remove, once it does
* at an appropriate point.
* (see https://github.com/RIOT-OS/RIOT/pull/14150) */
dhcp_start(netif);
#endif
}
/** @} */