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Today's Topics:
1. [PATCH] wifi: Fix connection before disconnection completed
(VAUTRIN Emmanuel (Canal Plus Prestataire))
2. RE: strange connection problem
(VAUTRIN Emmanuel (Canal Plus Prestataire))
----------------------------------------------------------------------
Date: Mon, 18 Jan 2021 13:05:11 +0000
From: "VAUTRIN Emmanuel (Canal Plus Prestataire)"
<[email protected]>
Subject: [PATCH] wifi: Fix connection before disconnection completed
To: "[email protected]" <[email protected]>
Message-ID: <[email protected]
prd02.prod.outlook.com>
Content-Type: text/plain; charset="iso-8859-1"
>From 08aefcb3bad90041505acaf95400c5a1ac9c711a Mon Sep 17 00:00:00 2001
From: Gabriel FORTE <[email protected]>
Date: Fri, 15 Jan 2021 19:40:00 +0100
Subject: [PATCH] wifi: Fix connection before disconnection completed
Prevents an input/output error when a network tries to connect before
the complete disconnection of the former connected one.
---
plugins/wifi.c | 51 +++++++++++++++++++++++++++++++++++++++++++-------
1 file changed, 44 insertions(+), 7 deletions(-)
diff --git a/plugins/wifi.c b/plugins/wifi.c
index fc304e3b..8975a9ff 100644
--- a/plugins/wifi.c
+++ b/plugins/wifi.c
@@ -165,6 +165,11 @@ struct wifi_data {
int assoc_code;
};
+struct disconnect_cb_data {
+ struct wifi_data *wifi;
+ struct connman_network *network;
+};
+
static GList *iface_list = NULL;
static GList *pending_wifi_device = NULL;
@@ -2220,18 +2225,32 @@ static int network_connect(struct connman_network
*network)
static void disconnect_callback(int result, GSupplicantInterface *interface,
void *user_data)
{
- struct wifi_data *wifi = user_data;
+ struct disconnect_cb_data *cb_data = user_data;
+ struct wifi_data *wifi = cb_data->wifi;
+ struct connman_network *network = cb_data->network;
+
+ g_free(cb_data);
- DBG("result %d supplicant interface %p wifi %p",
- result, interface, wifi);
+ DBG("result %d supplicant interface %p wifi %p networks: current %p \
+ pending %p disconnected %p", result, interface, wifi,
+ wifi->network, wifi->pending_network, network);
if (result == -ECONNABORTED) {
DBG("wifi interface no longer available");
return;
}
- if (wifi->network && wifi->network != wifi->pending_network)
- connman_network_set_connected(wifi->network, false);
+ if (network)
+ connman_network_set_connected(network, false);
+
+ if (network != wifi->network) {
+ if (network == wifi->pending_network) {
+ wifi->pending_network = NULL;
+ }
+ DBG("current wifi network has changed since disconnection");
+ return;
+ }
+
wifi->network = NULL;
wifi->disconnecting = false;
@@ -2250,6 +2269,7 @@ static int network_disconnect(struct connman_network
*network)
struct connman_device *device = connman_network_get_device(network);
struct wifi_data *wifi;
int err;
+ struct disconnect_cb_data *cb_data;
DBG("network %p", network);
@@ -2264,8 +2284,16 @@ static int network_disconnect(struct connman_network
*network)
wifi->disconnecting = true;
+ cb_data = g_try_malloc0(sizeof(*cb_data));
+ if (!cb_data) {
+ connman_error("Failed to allocate cb_data");
+ return -ENOMEM;
+ }
+
+ cb_data->wifi = wifi;
+ cb_data->network = network;
err = g_supplicant_interface_disconnect(wifi->interface,
- disconnect_callback, wifi);
+ disconnect_callback, cb_data);
if (err < 0)
wifi->disconnecting = false;
@@ -2387,9 +2415,18 @@ static bool handle_wps_completion(GSupplicantInterface
*interface,
if (!wps_ssid || wps_ssid_len != ssid_len ||
memcmp(ssid, wps_ssid, ssid_len) != 0) {
+ struct disconnect_cb_data *cb_data =
+ g_try_malloc0(sizeof(*cb_data));
+ if (!cb_data) {
+ connman_error("Failed to allocate cb_data");
+ return false;
+ }
+
+ cb_data->wifi = wifi;
+ cb_data->network = network;
connman_network_set_associating(network, false);
g_supplicant_interface_disconnect(wifi->interface,
- disconnect_callback, wifi);
+ disconnect_callback, cb_data);
return false;
}
--
2.25.1
------------------------------
Date: Mon, 18 Jan 2021 13:37:04 +0000
From: "VAUTRIN Emmanuel (Canal Plus Prestataire)"
<[email protected]>
Subject: RE: strange connection problem
To: Thomas Green <[email protected]>, "[email protected]"
<[email protected]>
Message-ID: <[email protected]
prd02.prod.outlook.com>
Content-Type: text/plain; charset="iso-8859-1"
Thomas,
I have just proposed our fix ("[PATCH] wifi: Fix connection before
disconnection completed").
Can you apply the patch, and check if it solves your bug?
B.R.
Emmanuel
------------------------------
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