int main(void)
{
// link_head_init(&link_head);
int a[5] = {1,2,3,4,5};
int i;
node_t *tmp = NULL;
for (i = 0; i < 5; i++)
link_head = link_insert_e(link_head, a[i]);
link_print(link_head);
//tmp = link_search(link_head, 4);
//printf("%d\n", tmp->val);
tmp = link_remove(link_head, 3);
link_node_free(tmp);
link_print(link_head);
link_destroy(link_head);
return 0;
}
int main(void)
{
int len = 0, i;
node_t str[3] = {{1, NULL}, {2, NULL}, {3, NULL}};
node_t *link_head = NULL;
init_head(&link_head);
len = sizeof(str)/sizeof(str[0]);
for (i = 0; i < len; i++) {
if ((link_head = link_insert_one_b(link_head, str[i].num)) == NULL) {
puts("error: main at link_insert_one_b");
exit(-1);
}
}
link_print(link_head);
//printf("asdf\n");
if ((link_head = link_reverse(link_head)) == NULL) {
puts("error: main at link_insert_one_b");
exit(-1);
}
link_print(link_head);
return 0;
}
//exits - problem sending
//0 - flow outside range, no link
//dst_num - sent all ff
int module_send_flow(struct fins_module *module, struct finsFrame *ff, uint32_t flow) {
PRINT_DEBUG("Entered: module=%p, ff=%p, flow=%u", module, ff, flow);
struct fins_module_table *mt = (struct fins_module_table *) module->data;
PRINT_DEBUG("table: flows_num=%u", mt->flows_num);
if (flow >= mt->flows_num) {
PRINT_DEBUG("Exited: module=%p, ff=%p, flow=%u, ret=%d", module, ff, flow, 0);
return 0;
}
PRINT_DEBUG("flow=%u, link_id=%u, link=%p", flow, mt->flows[flow].link_id, mt->flows[flow].link);
if (mt->flows[flow].link_id == LINK_NULL) {
PRINT_DEBUG("Exited: module=%p, ff=%p, flow=%u, ret=%d", module, ff, flow, 0);
return 0;
}
if (mt->flows[flow].link == NULL) {
PRINT_DEBUG("Exited: module=%p, ff=%p, flow=%u, ret=%d", module, ff, flow, 0);
return 0;
}
#ifdef DEBUG
link_print(mt->flows[flow].link);
#endif
if (mt->flows[flow].link->dsts_num == 0) {
PRINT_DEBUG("Exited: module=%p, ff=%p, flow=%u, ret=%d", module, ff, flow, 0);
return 0;
} else {
struct finsFrame *ff_clone;
int i;
for (i = 1; i < mt->flows[flow].link->dsts_num; i++) {
ff_clone = cloneFinsFrame(ff);
ff_clone->destinationID = mt->flows[flow].link->dsts_index[i];
module_to_switch(module, ff_clone);
}
ff->destinationID = mt->flows[flow].link->dsts_index[0];
module_to_switch(module, ff);
PRINT_DEBUG("Exited: module=%p, ff=%p, flow=%u, ret=%d", module, ff, flow, mt->flows[flow].link->dsts_num);
return mt->flows[flow].link->dsts_num;
}
}
static struct dhcp_context *
dhcp_context_create(struct ifnet * ifp, int max_try,
struct proc * procp, int * error_p)
{
struct dhcp_context * context = NULL;
struct sockaddr_dl * dl_p;
struct in_addr lo_addr;
struct in_addr lo_mask;
int error;
struct sockaddr_in sin;
/* get the hardware address from the interface */
dl_p = link_from_ifnet(ifp);
if (dl_p == NULL) {
printf("dhcp: can't get link address\n");
error = ENXIO;
goto failed;
}
printf("dhcp: h/w addr ");
link_print(dl_p);
if (dl_p->sdl_type != IFT_ETHER) {
printf("dhcp: hardware type %d not supported\n",
dl_p->sdl_type);
error = ENXIO;
goto failed;
}
context = (struct dhcp_context *)kalloc(sizeof(*context));
if (context == NULL) {
printf("dhcp: failed to allocate context\n");
error = ENOMEM;
goto failed;
}
bzero(context, sizeof(*context));
/* get a socket */
error = socreate(AF_INET, &context->so, SOCK_DGRAM, 0);
if (error != 0) {
printf("dhcp: socreate failed %d\n", error);
goto failed;
}
/* assign 127.0.0.1 to lo0 so that the bind will succeed */
lo_addr.s_addr = htonl(INADDR_LOOPBACK);
lo_mask.s_addr = htonl(IN_CLASSA_NET);
error = inet_aifaddr(context->so, "lo0", &lo_addr, &lo_mask, NULL);
if (error != 0) {
printf("dhcp: assigning loopback address failed %d\n", error);
}
/* enable reception of DHCP packets before an address is assigned */
snprintf(context->ifr.ifr_name,
sizeof(context->ifr.ifr_name), "%s%d", ifp->if_name,
ifp->if_unit);
context->ifr.ifr_intval = 1;
error = ifioctl(context->so, SIOCAUTOADDR, (caddr_t)&context->ifr, procp);
if (error) {
printf("dhcp: SIOCAUTOADDR failed: %d\n", error);
goto failed;
}
dprintf(("dhcp: SIOCAUTOADDR done\n"));
error = ifioctl(context->so, SIOCPROTOATTACH, (caddr_t)&context->ifr,
procp);
if (error) {
printf("dhcp: SIOCPROTOATTACH failed: %d\n", error);
goto failed;
}
dprintf(("dhcp: SIOCPROTOATTACH done\n"));
/* bind the socket */
sin.sin_len = sizeof(sin);
sin.sin_family = AF_INET;
sin.sin_port = htons(IPPORT_BOOTPC);
sin.sin_addr.s_addr = INADDR_ANY;
error = sobind(context->so, (struct sockaddr *)&sin);
if (error) {
printf("dhcp: sobind failed, %d\n", error);
goto failed;
}
/* make it non-blocking I/O */
socket_lock(context->so, 1);
context->so->so_state |= SS_NBIO;
socket_unlock(context->so, 1);
/* save passed-in information */
context->max_try = max_try;
context->dl_p = dl_p;
context->ifp = ifp;
/* get a random transaction id */
context->xid = random();
return (context);
failed:
dhcp_context_free(context, procp);
*error_p = error;
return (NULL);
}
