static scamper_firewall_rule_t *firewall_rule_dup(scamper_firewall_rule_t *sfw)
{
scamper_firewall_rule_t *dup;
if((dup = memdup(sfw, sizeof(scamper_firewall_rule_t))) == NULL)
return NULL;
scamper_addr_use(dup->sfw_5tuple_src);
if(dup->sfw_5tuple_dst != NULL)
scamper_addr_use(dup->sfw_5tuple_dst);
return dup;
}
static addr2mac_t *addr2mac_alloc(const int ifindex, scamper_addr_t *ip,
scamper_addr_t *mac, time_t expire)
{
addr2mac_t *addr2mac;
if((addr2mac = malloc_zero(sizeof(addr2mac_t))) == NULL)
{
printerror(errno, strerror, __func__, "could not malloc addr2mac");
return NULL;
}
addr2mac->ifindex = ifindex;
addr2mac->ip = ip != NULL ? scamper_addr_use(ip) : NULL;
addr2mac->mac = mac != NULL ? scamper_addr_use(mac) : NULL;
addr2mac->expire = expire;
return addr2mac;
}
static void probe_route_cb(scamper_route_t *rt)
{
scamper_fd_t *fd = NULL;
scamper_dl_t *dl = NULL;
probe_t *pr = rt->param;
if(rt->error != 0 || rt->ifindex < 0)
{
pr->error = rt->error;
goto err;
}
if((fd = scamper_task_fd_dl(pr->task, rt->ifindex)) == NULL)
{
pr->error = errno;
goto err;
}
if((pr->dlhdr = scamper_dlhdr_alloc()) == NULL)
{
pr->error = errno;
goto err;
}
dl = scamper_fd_dl_get(fd);
pr->dlhdr->dst = scamper_addr_use(rt->dst);
pr->dlhdr->gw = rt->gw != NULL ? scamper_addr_use(rt->gw) : NULL;
pr->dlhdr->ifindex = rt->ifindex;
pr->dlhdr->txtype = scamper_dl_tx_type(dl);
pr->dlhdr->param = pr;
pr->dlhdr->cb = probe_dlhdr_cb;
pr->mode = PROBE_MODE_DL;
if(scamper_dlhdr_get(pr->dlhdr) != 0)
{
pr->error = pr->dlhdr->error;
goto err;
}
return;
err:
pr->mode = PROBE_MODE_ERR;
if(pr->anc != NULL)
probe_free(pr);
return;
}
scamper_route_t *scamper_route_alloc(scamper_addr_t *dst, void *param,
void (*cb)(scamper_route_t *rt))
{
scamper_route_t *route;
if((route = malloc_zero(sizeof(scamper_route_t))) == NULL)
return NULL;
route->dst = scamper_addr_use(dst);
route->param = param;
route->cb = cb;
return route;
}
int scamper_dealias_prefixscan_probedef_add(scamper_dealias_t *dealias,
scamper_dealias_probedef_t *def)
{
scamper_dealias_prefixscan_t *prefixscan = dealias->data;
size_t size;
/* make the probedef array one bigger */
size = sizeof(scamper_dealias_probedef_t) * (prefixscan->probedefc+1);
if(realloc_wrap((void **)&prefixscan->probedefs, size) != 0)
return -1;
/* add the probedef to the array */
memcpy(&prefixscan->probedefs[prefixscan->probedefc],
def, sizeof(scamper_dealias_probedef_t));
/* update the probedef with an id, and get references to the addresses */
def = &prefixscan->probedefs[prefixscan->probedefc];
def->id = prefixscan->probedefc++;
scamper_addr_use(def->src);
scamper_addr_use(def->dst);
return 0;
}
int scamper_dealias_prefixscan_xs_add(scamper_dealias_t *dealias,
scamper_addr_t *addr)
{
scamper_dealias_prefixscan_t *prefixscan = dealias->data;
int tmp;
if(array_find((void **)prefixscan->xs, prefixscan->xc, addr,
(array_cmp_t)scamper_addr_cmp) != NULL)
return 0;
if((tmp = prefixscan->xc) == 65535)
return -1;
if(array_insert((void ***)&prefixscan->xs, &tmp, addr,
(array_cmp_t)scamper_addr_cmp) != 0)
return -1;
scamper_addr_use(addr);
prefixscan->xc++;
return 0;
}