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netdev: Track the id of the SET_STATION netlink command

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This way we make sure it gets cancelled any sort of connect abort of
netdev removal and don't leak the message on error.
This commit is contained in:
Andrew Zaborowski 2017-10-21 01:27:21 +02:00 committed by Denis Kenzior
parent a03839f8ef
commit 4dba9e37dd
1 changed files with 17 additions and 2 deletions
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19
src/netdev.c
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@ -78,6 +78,7 @@ struct netdev {
uint32_t pairwise_set_key_cmd_id;
uint32_t group_new_key_cmd_id;
uint32_t group_management_new_key_cmd_id;
uint32_t set_station_cmd_id;
uint32_t connect_cmd_id;
uint32_t disconnect_cmd_id;
enum netdev_result result;
@ -476,6 +477,11 @@ static void netdev_connect_free(struct netdev *netdev)
netdev->group_management_new_key_cmd_id = 0;
}
if (netdev->set_station_cmd_id) {
l_genl_family_cancel(nl80211, netdev->set_station_cmd_id);
netdev->set_station_cmd_id = 0;
}
if (netdev->connect_cmd_id) {
l_genl_family_cancel(nl80211, netdev->connect_cmd_id);
netdev->connect_cmd_id = 0;
@ -893,6 +899,9 @@ static void netdev_setting_keys_failed(struct netdev *netdev,
netdev->group_management_new_key_cmd_id);
netdev->group_management_new_key_cmd_id = 0;
l_genl_family_cancel(nl80211, netdev->set_station_cmd_id);
netdev->set_station_cmd_id = 0;
netdev->result = NETDEV_RESULT_KEY_SETTING_FAILED;
msg = netdev_build_cmd_disconnect(netdev,
MMPDU_REASON_CODE_UNSPECIFIED);
@ -906,6 +915,8 @@ static void netdev_set_station_cb(struct l_genl_msg *msg, void *user_data)
struct netdev *netdev = user_data;
int err;
netdev->set_station_cmd_id = 0;
if (!netdev->connected)
return;
@ -1127,9 +1138,13 @@ static void netdev_set_pairwise_key_cb(struct l_genl_msg *msg, void *data)
msg = netdev_build_cmd_set_station(netdev);
l_genl_family_send(nl80211, msg, netdev_set_station_cb, netdev, NULL);
return;
netdev->set_station_cmd_id =
l_genl_family_send(nl80211, msg, netdev_set_station_cb,
netdev, NULL);
if (netdev->set_station_cmd_id > 0)
return;
l_genl_msg_unref(msg);
error:
netdev_setting_keys_failed(netdev, MMPDU_REASON_CODE_UNSPECIFIED);
}