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