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netdev: Properly cleanup removed interfaces

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This commit is contained in:
Denis Kenzior 2016-07-19 17:45:48 -05:00
parent 22b599df5a
commit 295ccf62d5
1 changed files with 44 additions and 15 deletions
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57
src/netdev.c
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@ -71,6 +71,8 @@ struct netdev {
struct l_queue *watches;
uint32_t next_watch_id;
bool connected : 1;
bool eapol_active : 1;
bool rekey_offload_support : 1;
};
@ -269,15 +271,6 @@ static void netdev_free(void *data)
l_debug("Freeing netdev %s[%d]", netdev->name, netdev->index);
l_queue_destroy(netdev->watches, l_free);
l_free(netdev);
}
static void netdev_shutdown_one(void *data, void *user_data)
{
struct netdev *netdev = data;
device_remove(netdev->device);
if (netdev->sm) {
@ -286,7 +279,17 @@ static void netdev_shutdown_one(void *data, void *user_data)
l_io_destroy(netdev->eapol_io);
netdev->eapol_io = NULL;
}
} else if (netdev->eapol_active)
eapol_cancel(netdev->index);
l_queue_destroy(netdev->watches, l_free);
l_free(netdev);
}
static void netdev_shutdown_one(void *data, void *user_data)
{
struct netdev *netdev = data;
netdev_set_linkmode_and_operstate(netdev->index, 0, IF_OPER_DOWN,
netdev_operstate_down_cb,
@ -311,7 +314,12 @@ struct netdev *netdev_find(int ifindex)
static void netdev_lost_beacon(struct netdev *netdev)
{
if (netdev->eapol_active) {
netdev->eapol_active = false;
eapol_cancel(netdev->index);
}
netdev->connected = false;
if (!netdev->event_filter)
return;
@ -424,11 +432,16 @@ static void netdev_disconnect_event(struct l_genl_msg *msg,
l_info("Received Deauthentication event, reason: %hu, from_ap: %s",
reason_code, disconnect_by_ap ? "true" : "false");
netdev->connected = false;
if (netdev->eapol_active) {
eapol_cancel(netdev->index);
netdev->eapol_active = false;
}
if (!disconnect_by_ap)
return;
eapol_cancel(netdev->index);
if (netdev->event_filter)
netdev->event_filter(netdev, NETDEV_EVENT_DISCONNECT_BY_AP,
netdev->user_data);
@ -485,6 +498,8 @@ static void netdev_operstate_cb(bool success, void *user_data)
l_genl_family_send(nl80211, msg, NULL, NULL, NULL);
eapol_cancel(netdev->index);
netdev->eapol_active = false;
netdev->connected = false;
result = NETDEV_RESULT_KEY_SETTING_FAILED;
} else
@ -515,6 +530,8 @@ static void netdev_setting_keys_failed(struct netdev *netdev,
netdev->group_new_key_cmd_id = 0;
eapol_cancel(netdev->index);
netdev->eapol_active = false;
netdev->connected = false;
msg = netdev_build_cmd_deauthenticate(netdev,
MPDU_REASON_CODE_UNSPECIFIED);
@ -819,6 +836,9 @@ static void netdev_handshake_failed(uint32_t ifindex,
l_error("4-Way Handshake failed for ifindex: %d", ifindex);
netdev->eapol_active = false;
netdev->connected = false;
msg = netdev_build_cmd_deauthenticate(netdev, reason_code);
l_genl_family_send(nl80211, msg, NULL, NULL, NULL);
@ -899,6 +919,8 @@ static void netdev_connect_failed(struct netdev *netdev,
netdev->eapol_io = NULL;
}
netdev->connected = false;
if (netdev->connect_cb)
netdev->connect_cb(netdev, result, netdev->user_data);
}
@ -937,6 +959,7 @@ static void netdev_connect_event(struct l_genl_msg *msg,
if (netdev->sm) {
eapol_start(netdev->index, netdev->eapol_io, netdev->sm);
netdev->eapol_active = true;
netdev->sm = NULL;
netdev->eapol_io = NULL;
@ -1045,6 +1068,9 @@ int netdev_connect(struct netdev *netdev, struct scan_bss *bss,
{
struct l_genl_msg *cmd_connect;
if (netdev->connected)
return -EISCONN;
cmd_connect = netdev_build_cmd_connect(netdev, bss, sm);
if (!cmd_connect) {
l_genl_msg_unref(cmd_connect);
@ -1061,6 +1087,8 @@ int netdev_connect(struct netdev *netdev, struct scan_bss *bss,
netdev->user_data = user_data;
memcpy(netdev->remote_addr, bss->addr, ETH_ALEN);
netdev->connected = true;
netdev->sm = sm;
if (netdev->sm) {
/*
@ -1086,6 +1114,9 @@ int netdev_disconnect(struct netdev *netdev,
{
struct l_genl_msg *deauthenticate;
if (!netdev->connected)
return -ENOTCONN;
deauthenticate = netdev_build_cmd_deauthenticate(netdev,
MPDU_REASON_CODE_DEAUTH_LEAVING);
if (!l_genl_family_send(nl80211, deauthenticate,
@ -1097,8 +1128,6 @@ int netdev_disconnect(struct netdev *netdev,
netdev->disconnect_cb = cb;
netdev->user_data = user_data;
eapol_cancel(netdev->index);
return 0;
}