/* Generates and returns a random datapath id. */
static uint64_t
gen_datapath_id(void) {
uint8_t ea[ETH_ADDR_LEN];
eth_addr_random(ea);
return eth_addr_to_uint64(ea);
}
static struct pagthread_once once = PAGTHREAD_ONCE_INITIALIZER;
struct eth_addr_node *node;
static struct hmap addrs;
uint64_t ea64;
if (pagthread_once_start(&once)) {
hmap_init(&addrs);
for (node = nodes; node < &nodes[ARRAY_SIZE(nodes)]; node++) {
hmap_insert(&addrs, &node->hmap_node,
hash_2words(node->ea64, node->ea64 >> 32));
}
pagthread_once_done(&once);
}
ea64 = eth_addr_to_uint64(ea);
HMAP_FOR_EACH_IN_BUCKET (node, hmap_node, hash_2words(ea64, ea64 >> 32),
&addrs) {
if (node->ea64 == ea64) {
return true;
}
}
return false;
}
bool
eth_addr_from_string(const char *s, uint8_t ea[ETH_ADDR_LEN])
{
if (pag_scan(s, ETH_ADDR_SCAN_FMT, ETH_ADDR_SCAN_ARGS(ea))) {
return true;
} else {
