static void
wl_conn_failure_cb(void* ctx)
{
CM_DPRINTF("CM: connect failed, scanning\n");
if (wl_scan() != WL_SUCCESS)
/* should never happen */
CM_DPRINTF("CM: could not start scan after connect fail!\n");
}
cmd_state_t
cmd_scan(int argc, char* argv[], void* ctx)
{
/* Note that the scan results presented will
* be from the last scan, not this one.
*/
wl_scan();
print_network_list();
return CMD_DONE;
}
static void
wl_conn_lost_cb(void* ctx)
{
struct cm *cm = ctx;
CM_DPRINTF("CM: connection lost, scanning\n");
if (cm->disconn_cb)
cm->disconn_cb(cm->ctx);
if (wl_scan() != WL_SUCCESS)
/* should never happen */
CM_DPRINTF("CM: could not start scan after connect lost!\n");
}
static void
wl_conn_failure_cb(void* ctx)
{
struct cm *cm = ctx;
CM_DPRINTF("CM: connect failed, scanning\n");
ERROR_LED_ON();
LINK_LED_OFF();
if ( 0 == cm->enabled ) {
return;
}
if (wl_scan() != WL_SUCCESS)
/* should never happen */
CM_DPRINTF("CM: could not start scan after connect fail!\n");
}
void sta_start_scanning()
{
if (sta_state==STA_STATE_BEING_AP)
{
stop_dhcpd();
if (nvram_match("wlp_clientmode_x", "2"))
nvram_set("wl0_mode", "wet");
else nvram_set("wl0_mode", "sta");
eval("wlconfig", "eth2");
}
wl_scan();
time(&sta_timer);
sta_state = STA_STATE_SCANNING;
sta_status_report(sta_state, 0);
}
void
wl_init_complete_cb(void* ctx)
{
struct ctx_server *hs = ctx;
struct ip_addr ipaddr, netmask, gw;
wl_err_t wl_status;
if (hs->net_cfg.dhcp_enabled == INIT_IP_CONFIG)
{
IP4_ADDR(&gw, 0,0,0,0);
IP4_ADDR(&ipaddr, 0,0,0,0);
IP4_ADDR(&netmask, 0,0,0,0);
/* default is dhcp enabled */
hs->net_cfg.dhcp_enabled = DYNAMIC_IP_CONFIG;
}
start_ip_stack(&hs->net_cfg,
ipaddr,
netmask,
gw);
netif_set_status_callback(hs->net_cfg.netif, ip_status_cb);
INFO_INIT("Starting CM...\n");
/* start connection manager */
wl_status = wl_cm_init(wl_cm_scan_cb, wl_cm_conn_cb, wl_cm_disconn_cb, hs);
ASSERT(wl_status == WL_SUCCESS, "failed to init wl conn mgr");
wl_cm_start();
wl_scan();
if (initSpi(hs)){
WARN("Spi not initialized\n");
}else
{
initSpiComplete = true;
AVAIL_FOR_SPI();
}
hs->wl_init_complete = 1;
}
/**
* Set the desired network which the connection manager should try to
* connect to.
*
* The ssid and bssid of the desired network should be specified. The ssid and
* bssid will be matched against the networks found during scan. If any
* parameter is null, it will always match. If both parameters are null,
* the first found network will be chosen.
*
* @param ssid The ssid of the desired network. If null, any ssid will match.
* @param bssid The bssid of the desired network. If null, any bssid will match.
*
*/
wl_err_t
wl_cm_set_network(struct wl_ssid_t *ssid, struct wl_mac_addr_t *bssid)
{
if (cm == NULL)
return WL_FAILURE;
if (ssid)
memcpy(&cm->candidate.ssid, ssid, sizeof(cm->candidate.ssid));
else
cm->candidate.ssid.len = 0;
if (bssid)
memcpy(&cm->candidate.bssid, bssid,
sizeof(cm->candidate.bssid));
else
memset(&cm->candidate.bssid, 0xff, sizeof(cm->candidate.bssid));
if (cm->candidate.ssid.len)
wl_scan();
return WL_SUCCESS;
}
static void
psta_keepalive()
{
char tmp[NVRAM_BUFSIZE], prefix[] = "wlXXXXXXXXXX_";
char *name = NULL;
struct maclist *mac_list = NULL;
int mac_list_size, i, unit;
int psta = 0;
struct ether_addr bssid;
unsigned char bssid_null[6] = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0};
char macaddr[18];
unit = nvram_get_int("wlc_band");
snprintf(prefix, sizeof(prefix), "wl%d_", unit);
if (!nvram_match(strcat_r(prefix, "mode", tmp), "psta"))
goto PSTA_ERR;
name = nvram_safe_get(strcat_r(prefix, "ifname", tmp));
if (wl_ioctl(name, WLC_GET_BSSID, &bssid, ETHER_ADDR_LEN) != 0)
goto PSTA_ERR;
else if (!memcmp(&bssid, bssid_null, 6))
goto PSTA_ERR;
/* buffers and length */
mac_list_size = sizeof(mac_list->count) + MAX_STA_COUNT * sizeof(struct ether_addr);
mac_list = malloc(mac_list_size);
if (!mac_list)
goto PSTA_ERR;
/* query wl for authenticated sta list */
strcpy((char*)mac_list, "authe_sta_list");
if (wl_ioctl(name, WLC_GET_VAR, mac_list, mac_list_size)) {
free(mac_list);
goto PSTA_ERR;
}
/* query sta_info for each STA and output one table row each */
if (mac_list->count)
{
if (nvram_match(strcat_r(prefix, "akm", tmp), ""))
psta = 1;
else
for (i = 0; i < mac_list->count; i++) {
if (wl_autho(name, &mac_list->ea[i]))
{
psta = 1;
break;
}
}
}
PSTA_ERR:
if (psta)
{
count_bss_down = 0;
ether_etoa((const unsigned char *) &bssid, macaddr);
if (psta_debug) dbg("psta send keepalive nulldata to %s\n", macaddr);
eval("wl", "-i", name, "send_nulldata", macaddr);
#ifdef PSTA_DEBUG
count = (count + 1) % 10;
if (!count) check_wl_rate(name);
#endif
}
else
{
if (psta_debug) dbg("psta disconnected\n");
if (++count_bss_down > 9)
{
count_bss_down = 0;
if (wl_scan(unit))
{
eval("wlconf", name, "down");
eval("wlconf", name, "up");
eval("wlconf", name, "start");
}
}
else
{
eval("wl", "-i", name, "bss", "down");
eval("wl", "-i", name, "down");
eval("wl", "-i", name, "up");
eval("wl", "-i", name, "bss", "up");
}
}
if (mac_list) free(mac_list);
}
static void
select_net(struct cm* cm)
{
struct wl_network_t *candidate_net;
struct wl_network_t *current_net;
struct wl_ssid_t *ssid_p;
int ret;
/* Nothing to do */
if (0 == cm->candidate.ssid.len) {
return;
}
current_net = wl_get_current_network();
candidate_net = find_best_candidate(cm);
/* Connected to the candidate? ... */
if ( current_net == candidate_net ) {
if ( current_net ) {
/* ...yes, dont change. */
return;
}
}
/* Roaming checks */
if (current_net && candidate_net) {
/* Are we changing BSSs? */
if ( equal_ssid(&candidate_net->ssid,
¤t_net->ssid)) {
/* ...no. Does the currently connected
* net have a decent RSSI?...*/
if ( current_net->rssi > ROAMING_RSSI_THRESHOLD ) {
/* ...yes, stay with it. */
return;
}
/* ...no. Does the candidate have
* sufficiently better RSSI to
* motivate a switch to it? */
if ( candidate_net->rssi < current_net->rssi +
ROAMING_RSSI_DIFF) {
return;
}
/* ...yes, try to roam to candidate_net */
CM_DPRINTF("CM: Roaming from rssi %d to %d\n",
current_net->rssi,
candidate_net->rssi);
}
}
/* a candidate is found */
if (candidate_net) {
/* We connect to a specific bssid here because
* find_best_candidate() might have picked a
* particulare AP among many with the same SSID.
* wl_connect() would pick one of them at random.
*/
ret = wl_connect_bssid(candidate_net->bssid);
}
/* no candidate found */
else {
CM_DPRINTF("CM: No candidate found for ssid \"%s\"\n",
ssid2str(&cm->candidate.ssid));
/* Might be a hidden SSID so we try to connect to it.
* wl_connect() will trigger a directed scan
* for the SSID in this case.
*/
ssid_p = &cm->candidate.ssid;
ret = wl_connect(ssid_p->ssid, ssid_p->len);
}
switch (ret) {
case WL_SUCCESS :
return;
case WL_BUSY:
wl_disconnect();
return;
case WL_RETRY:
break;
default :
CM_DPRINTF("CM: failed to connect\n");
break;
}
/* some operation failed or no candidate found */
if (wl_scan() != WL_SUCCESS)
CM_DPRINTF("CM: failed to scan\n");
}