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/* SPDX-License-Identifier: LGPL-2.1+ */
#include <net/ethernet.h>
#include <linux/nl80211.h>
#include "sd-bus.h"
#include "bus-util.h"
#include "netlink-internal.h"
#include "netlink-util.h"
#include "networkd-link.h"
#include "networkd-manager.h"
#include "networkd-wifi.h"
#include "string-util.h"
#include "wifi-util.h"
int wifi_get_info(Link *link) {
const char *type;
int r, s = 0;
assert(link);
if (!link->sd_device)
return 0;
r = sd_device_get_devtype(link->sd_device, &type);
if (r == -ENOENT)
return 0;
else if (r < 0)
return r;
if (!streq(type, "wlan"))
return 0;
_cleanup_free_ char *ssid = NULL;
r = wifi_get_interface(link->manager->genl, link->ifindex, &link->wlan_iftype, &ssid);
if (r < 0)
return r;
if (r > 0 && streq_ptr(link->ssid, ssid))
r = 0;
free_and_replace(link->ssid, ssid);
if (link->wlan_iftype == NL80211_IFTYPE_STATION) {
struct ether_addr old_bssid = link->bssid;
s = wifi_get_station(link->manager->genl, link->ifindex, &link->bssid);
if (s < 0)
return s;
if (s > 0 && memcmp(&old_bssid, &link->bssid, sizeof old_bssid) == 0)
s = 0;
}
if (r > 0 || s > 0) {
char buf[ETHER_ADDR_TO_STRING_MAX];
if (link->wlan_iftype == NL80211_IFTYPE_STATION && link->ssid)
log_link_info(link, "Connected WiFi access point: %s (%s)",
link->ssid, ether_addr_to_string(&link->bssid, buf));
return 1;
}
return 0;
}
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