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netdev: Send SET STATION in pairwise key callback

When the 4-Way Handshake is done eapol.c calls netdev_set_tk, then
optionally netdev_set_gtk and netdev_set_igtk.  To support the no group
key option send the final SET STATION enabling the controlled port
inside the callback for the netdev_set_tk operation which always means
the end of a 4-Way Handshake rather than in the netdev_set_gtk callback.
The spec says exactly that the controlled port is enabled at the end of
the 4-Way Handshake.

The netlink operations will still be queued in the same order because
the netdev_set_tk/netdev_set_gtk/netdev_set_igtk calls happen in one
main loop iteration but even if the order changed it wouldn't matter.
On failure of any of the three operations netdev_setting_keys_failed
gets called and the remaining operations are cancelled.
This commit is contained in:
Andrew Zaborowski 2017-10-21 01:27:20 +02:00 committed by Denis Kenzior
parent ffcda135d2
commit a03839f8ef

View File

@ -949,19 +949,10 @@ static void netdev_new_group_key_cb(struct l_genl_msg *msg, void *data)
netdev->group_new_key_cmd_id = 0;
if (l_genl_msg_get_error(msg) < 0) {
l_error("New Key for Group Key failed for ifindex: %d",
netdev->index);
goto error;
}
msg = netdev_build_cmd_set_station(netdev);
if (l_genl_family_send(nl80211, msg, netdev_set_station_cb,
netdev, NULL) > 0)
if (l_genl_msg_get_error(msg) >= 0)
return;
error:
l_error("New Key for Group Key failed for ifindex: %d", netdev->index);
netdev_setting_keys_failed(netdev, MMPDU_REASON_CODE_UNSPECIFIED);
}
@ -1125,11 +1116,21 @@ static void netdev_set_pairwise_key_cb(struct l_genl_msg *msg, void *data)
netdev->pairwise_set_key_cmd_id = 0;
if (l_genl_msg_get_error(msg) >= 0)
if (l_genl_msg_get_error(msg) < 0) {
l_error("Set Key for Pairwise Key failed for ifindex: %d",
netdev->index);
goto error;
}
if (netdev->operational)
return;
l_error("Set Key for Pairwise Key failed for ifindex: %d",
netdev->index);
msg = netdev_build_cmd_set_station(netdev);
l_genl_family_send(nl80211, msg, netdev_set_station_cb, netdev, NULL);
return;
error:
netdev_setting_keys_failed(netdev, MMPDU_REASON_CODE_UNSPECIFIED);
}