int uip_netport_init(void)
{
struct vmm_netswitch *nsw;
struct uip_port_state *s = &uip_port_state;
struct uip_fw_netif *netif;
uip_ipaddr_t ipaddr;
char tname[64];
uip_buf = vmm_malloc(UIP_BUFSIZE + 2);
if(!uip_buf) {
vmm_panic("%s: uip_buf alloc failed\n", __func__);
}
INIT_SPIN_LOCK(&s->lock);
INIT_LIST_HEAD(&s->rxbuf);
INIT_COMPLETION(&s->rx_possible);
/* Get the first netswitch */
nsw = vmm_netswitch_get(0);
if(!nsw) {
vmm_panic("No netswitch found\n");
}
/* Create a port-name */
vmm_sprintf(tname, "%s-uip", nsw->name);
/* Allocate a netport for this netswitch */
s->port = vmm_netport_alloc(tname);
if(!s->port) {
vmm_printf("UIP->netport alloc failed\n");
return VMM_EFAIL;
}
/* Allocate a uip_fw_netif */
netif = vmm_malloc(sizeof(struct uip_fw_netif));
if(!netif) {
vmm_printf("UIP->netif alloc failed\n");
return VMM_EFAIL;
}
/* Register the netport */
s->port->mtu = UIP_BUFSIZE;
s->port->link_changed = uip_set_link;
s->port->can_receive = uip_can_receive;
s->port->switch2port_xfer = uip_switch2port_xfer;
s->port->priv = s;
s->netif = netif;
vmm_netport_register(s->port);
/* Attach with the netswitch */
vmm_netswitch_port_add(nsw, s->port);
/* Notify our ethernet address */
uip_setethaddr(((struct uip_eth_addr *)(s->port->macaddr)));
/* Generate an IP address */
uip_ipaddr(ipaddr, 192,168,0,1);
uip_fw_setipaddr(netif, ipaddr);
uip_ipaddr(ipaddr, 255,255,255,0);
uip_fw_setnetmask(netif, ipaddr);
/* Register the netif with uip stack */
netif->output = &uip_netport_output;
netif->priv = s;
uip_fw_register(netif);
/* Set this interface as default one */
uip_fw_default(netif);
return 0;
}
static int __init lwip_netstack_init(void)
{
int rc;
struct vmm_netswitch *nsw;
struct vmm_devtree_node *node;
const char *attrval;
u8 ip[] = {192, 168, 0, 1};
u8 mask[] = {255, 255, 255, 0};
/* Clear lwIP state */
memset(&lns, 0, sizeof(lns));
/* Get netstack device tree node if available */
node = vmm_devtree_getnode(VMM_DEVTREE_PATH_SEPARATOR_STRING
VMM_DEVTREE_VMMINFO_NODE_NAME
VMM_DEVTREE_PATH_SEPARATOR_STRING
VMM_DEVTREE_VMMNET_NODE_NAME
VMM_DEVTREE_PATH_SEPARATOR_STRING
VMM_DEVTREE_NETSTACK_NODE_NAME);
/* Retrive preferred IP address */
attrval = vmm_devtree_attrval(node, "ipaddr");
if (attrval) {
/* Read ip address from netstack node */
str2ipaddr(ip, attrval);
}
/* Retrive preferred IP address */
attrval = vmm_devtree_attrval(node, "netmask");
if (attrval) {
/* Read network mask from netstack node */
str2ipaddr(mask, attrval);
}
/* Retrive preferred netswitch */
attrval = vmm_devtree_attrval(node, "netswitch");
if (attrval) {
/* Find netswitch with given name */
nsw = vmm_netswitch_find(attrval);
} else {
/* Get the first netswitch */
nsw = vmm_netswitch_get(0);
}
if (!nsw) {
vmm_panic("No netswitch found\n");
}
/* Allocate a netport */
lns.port = vmm_netport_alloc("lwip-netport", VMM_NETPORT_DEF_QUEUE_SIZE);
if (!lns.port) {
vmm_printf("lwIP netport_alloc() failed\n");
rc = VMM_EFAIL;
goto fail;
}
/* Setup a netport */
lns.port->mtu = 1500;
lns.port->link_changed = lwip_set_link;
lns.port->can_receive = lwip_can_receive;
lns.port->switch2port_xfer = lwip_switch2port_xfer;
lns.port->priv = &lns;
/* Register a netport */
rc = vmm_netport_register(lns.port);
if (rc) {
goto fail1;
}
/* Initialize lwIP + TCP/IP APIs */
tcpip_init(NULL, NULL);
/* Add netif */
IP4_ADDR(&lns.ipaddr, ip[0],ip[1],ip[2],ip[3]);
IP4_ADDR(&lns.netmask, mask[0],mask[1],mask[2],mask[3]);
IP4_ADDR(&lns.gw, ip[0],ip[1],ip[2],ip[3]);
netif_add(&lns.nif, &lns.ipaddr, &lns.netmask, &lns.gw, &lns,
lwip_netstack_netif_init, ethernet_input);
/* Set default netif */
netif_set_default(&lns.nif);
/* Attach netport with netswitch
* Note: This will cause netport link_change()
*/
rc = vmm_netswitch_port_add(nsw, lns.port);
if (rc) {
goto fail2;
}
#if !defined(PING_USE_SOCKETS)
/* Initalize RAW PCB for ping */
ping_raw_init();
#endif
return VMM_OK;
fail2:
vmm_netport_unregister(lns.port);
fail1:
vmm_netport_free(lns.port);
fail:
return rc;
}
