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ap: React to NL80211_CMD_STOP_AP events

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These events will tell use when our AP gets stopped without our request,
for example due to suspend/resume.
This commit is contained in:
Andrew Zaborowski 2020-02-15 01:17:46 +01:00 committed by Denis Kenzior
parent 87a198111a
commit dd2677402a
1 changed files with 29 additions and 0 deletions
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29
src/ap.c
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@ -57,6 +57,7 @@ struct ap_state {
struct l_uintset *rates; struct l_uintset *rates;
uint8_t pmk[32]; uint8_t pmk[32];
uint32_t start_stop_cmd_id; uint32_t start_stop_cmd_id;
uint32_t mlme_watch;
uint8_t gtk[CRYPTO_MAX_GTK_LEN]; uint8_t gtk[CRYPTO_MAX_GTK_LEN];
uint8_t gtk_index; uint8_t gtk_index;
@ -1393,6 +1394,26 @@ static struct l_genl_msg *ap_build_cmd_start_ap(struct ap_state *ap)
return cmd; return cmd;
} }
static void ap_mlme_notify(struct l_genl_msg *msg, void *user_data)
{
struct ap_state *ap = user_data;
uint32_t ifindex;
if (nl80211_parse_attrs(msg, NL80211_ATTR_IFINDEX, &ifindex,
NL80211_ATTR_UNSPEC) < 0 ||
ifindex != netdev_get_ifindex(ap->netdev))
return;
switch (l_genl_msg_get_command(msg)) {
case NL80211_CMD_STOP_AP:
if (ap->start_stop_cmd_id)
break;
ap_reset(ap);
break;
}
}
static int ap_start(struct ap_state *ap, const char *ssid, const char *psk, static int ap_start(struct ap_state *ap, const char *ssid, const char *psk,
struct l_dbus_message *message) struct l_dbus_message *message)
{ {
@ -1448,6 +1469,11 @@ static int ap_start(struct ap_state *ap, const char *ssid, const char *psk,
NULL, 0, ap_deauth_cb, ap, NULL)) NULL, 0, ap_deauth_cb, ap, NULL))
goto error; goto error;
ap->mlme_watch = l_genl_family_register(ap->nl80211, "mlme",
ap_mlme_notify, ap, NULL);
if (!ap->mlme_watch)
l_error("Registering for MLME notification failed");
cmd = ap_build_cmd_start_ap(ap); cmd = ap_build_cmd_start_ap(ap);
if (!cmd) if (!cmd)
goto error; goto error;
@ -1514,6 +1540,9 @@ static int ap_stop(struct ap_state *ap, struct l_dbus_message *message)
if (ap->start_stop_cmd_id) if (ap->start_stop_cmd_id)
l_genl_family_cancel(ap->nl80211, ap->start_stop_cmd_id); l_genl_family_cancel(ap->nl80211, ap->start_stop_cmd_id);
if (ap->mlme_watch)
l_genl_family_unregister(ap->nl80211, ap->mlme_watch);
ap->start_stop_cmd_id = l_genl_family_send(ap->nl80211, cmd, ap_stop_cb, ap->start_stop_cmd_id = l_genl_family_send(ap->nl80211, cmd, ap_stop_cb,
ap, NULL); ap, NULL);
if (!ap->start_stop_cmd_id) { if (!ap->start_stop_cmd_id) {