int
wl_ioctl(char *name, int cmd, void *buf, int len)
{
struct ifreq ifr;
wl_ioctl_t ioc;
int ret = 0;
int s;
char nv_name[IFNAMSIZ], bwl_name[IFNAMSIZ];
int unit;
if (osifname_to_nvifname(name, nv_name, sizeof(nv_name)) != 0)
return -1;
/* NVRAM I/F names for wireless devices are always wlX or wlX.Y */
if (strncmp(nv_name, "wl", 2))
return -1;
if (get_ifname_unit(nv_name, &unit, NULL) != 0)
return -1;
snprintf(bwl_name, IFNAMSIZ, "bwl%d", unit);
/* open socket to kernel */
if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
perror("socket");
return errno;
}
/* do it */
ioc.cmd = cmd;
ioc.buf = buf;
ioc.len = len;
/* initializing the remaining fields */
ioc.set = FALSE;
ioc.used = 0;
ioc.needed = 0;
/* strncpy(ifr.ifr_name, name, IFNAMSIZ); */
strncpy(ifr.ifr_name, bwl_name, IFNAMSIZ);
ifr.ifr_data = (caddr_t) &ioc;
if ((ret = ioctl(s, SIOCDEVPRIVATE, &ifr)) < 0) {
/* cprintf("%s: cmd=%d\n", __func__, cmd); */
if (cmd != WLC_GET_MAGIC)
perror(ifr.ifr_name);
}
/* cleanup */
close(s);
/* printf("%s(%d) ret %d\n", __func__, cmd, ret); */
return ret;
}
int foreach_wif(int include_vifs, void *param,
int (*func)(int idx, int unit, int subunit, void *param))
{
char ifnames[256];
char name[64], ifname[64], *next = NULL;
int unit = -1, subunit = -1;
int i;
int ret = 0;
snprintf(ifnames, sizeof(ifnames), "%s %s %s %s %s %s %s %s %s %s",
nvram_safe_get("lan_ifnames"),
nvram_safe_get("lan1_ifnames"),
nvram_safe_get("lan2_ifnames"),
nvram_safe_get("lan3_ifnames"),
nvram_safe_get("wan_ifnames"),
nvram_safe_get("wl_ifname"),
nvram_safe_get("wl0_ifname"),
nvram_safe_get("wl0_vifs"),
nvram_safe_get("wl1_ifname"),
nvram_safe_get("wl1_vifs"));
remove_dups(ifnames, sizeof(ifnames));
sort_list(ifnames, sizeof(ifnames));
i = 0;
foreach(name, ifnames, next) {
if (nvifname_to_osifname(name, ifname, sizeof(ifname)) != 0)
continue;
if (wl_probe(ifname) || wl_ioctl(ifname, WLC_GET_INSTANCE, &unit, sizeof(unit)))
continue;
// Convert eth name to wl name
if (osifname_to_nvifname(name, ifname, sizeof(ifname)) != 0)
continue;
// Slave intefaces have a '.' in the name
if (strchr(ifname, '.') && !include_vifs)
continue;
if (get_ifname_unit(ifname, &unit, &subunit) < 0)
continue;
ret |= func(i++, unit, subunit, param);
}
return ret;
}
/*
* Translate virtual interface mac to spoof mac
* Rule:
* 00:aa:bb:cc:dd:ee 00:00:00:x:y:z
* wl0 ------------ [wlx/wlx.y/wdsx.y]0.1 ------ x=1/2/3, y=0, z=1
* +----------- [wlx/wlx.y/wdsx.y]0.2 ------ x=1/2/3, y=0, z=2
* wl1 ------------ [wlx/wlx.y/wdsx.y]1.1 ------ x=1/2/3, y=1, z=1
* +----------- [wlx/wlx.y/wdsx.y]1.2 ------ x=1/2/3, y=1, z=2
*
* URE ON : wds/mbss not support and wlx.y have same mac as wlx
* URE OFF : wlx.y have unique mac and wdsx.y have same mac as wlx
*
*/
int
get_spoof_mac(const char *osifname, char *mac, int maclen)
{
char nvifname[16];
int i, unit, subunit;
wlif_name_desc_t *wlif_name;
if (osifname == NULL ||
mac == NULL ||
maclen < ETHER_ADDR_LEN)
return -1;
if (osifname_to_nvifname(osifname, nvifname, sizeof(nvifname)) < 0)
return -1;
/* translate to spoof mac */
if (!get_ifname_unit(nvifname, &unit, &subunit)) {
memset(mac, 0, maclen);
for (i = 0; i < ARRAYSIZE(wlif_name_array); i++) {
wlif_name = &wlif_name_array[i];
if (!strncmp(osifname, wlif_name->name, strlen(wlif_name->name))) {
if (subunit >= 0 && wlif_name->subunit)
break;
else if (subunit < 0 && !wlif_name->subunit) {
subunit = 0; /* reset to zero */
break;
}
}
}
/* not found */
if (i == ARRAYSIZE(wlif_name_array))
return -1;
/* translate it */
mac[3] = i+1;
mac[4] = unit;
mac[5] = subunit;
return 0;
}
return -1;
}