[PATCH] device: Return error when ConnectProfile DBus method fails

[PATCH] device: Return error when ConnectProfile DBus method fails

[Pali Rohár]

Without this patch ConnectProfile DBus method does not return failure if
profile connection failed and some other profile was already connected.
This is not correct behavior as ConnectProfile DBus method should always
return error when specified profile failed to connect. This patch fixes
this it.
---
 src/device.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/device.c b/src/device.c
index a8d95346a..7ab30705f 100644
--- a/src/device.c
+++ b/src/device.c
@@ -1584,6 +1584,7 @@ static void device_profile_connected(struct btd_device *dev,
 					struct btd_profile *profile, int err)
 {
 	struct btd_service *pending;
+	bool report_error;
 	GSList *l;
 
 	DBG("%s %s (%d)", profile->name, strerror(-err), -err);
@@ -1632,9 +1633,16 @@ done:
 
 	DBG("returning response to %s", dbus_message_get_sender(dev->connect));
 
-	l = find_service_with_state(dev->services, BTD_SERVICE_STATE_CONNECTED);
+	if (err && dbus_message_is_method_call(dev->connect, DEVICE_INTERFACE,
+					"ConnectProfile"))
+		report_error = true;
+	else if (err && !find_service_with_state(dev->services,
+					BTD_SERVICE_STATE_CONNECTED))
+		report_error = true;
+	else
+		report_error = false;
 
-	if (err && l == NULL) {
+	if (report_error) {
 		/* Fallback to LE bearer if supported */
 		if (err == -EHOSTDOWN && dev->le && !dev->le_state.connected) {
 			err = device_connect_le(dev);
-- 
2.20.1

Re: [PATCH] device: Return error when ConnectProfile DBus method fails

[Luiz Augusto von Dentz]

Hi Pali,

On Thu, Apr 23, 2020 at 4:36 PM Pali Rohár <pali@kernel.org> wrote:
>
> Without this patch ConnectProfile DBus method does not return failure if
> profile connection failed and some other profile was already connected.
> This is not correct behavior as ConnectProfile DBus method should always
> return error when specified profile failed to connect. This patch fixes
> this it.
> ---
>  src/device.c | 12 ++++++++++--
>  1 file changed, 10 insertions(+), 2 deletions(-)
>
> diff --git a/src/device.c b/src/device.c
> index a8d95346a..7ab30705f 100644
> --- a/src/device.c
> +++ b/src/device.c
> @@ -1584,6 +1584,7 @@ static void device_profile_connected(struct btd_device *dev,
>                                         struct btd_profile *profile, int err)
>  {
>         struct btd_service *pending;
> +       bool report_error;
>         GSList *l;
>
>         DBG("%s %s (%d)", profile->name, strerror(-err), -err);
> @@ -1632,9 +1633,16 @@ done:
>
>         DBG("returning response to %s", dbus_message_get_sender(dev->connect));
>
> -       l = find_service_with_state(dev->services, BTD_SERVICE_STATE_CONNECTED);
> +       if (err && dbus_message_is_method_call(dev->connect, DEVICE_INTERFACE,
> +                                       "ConnectProfile"))
> +               report_error = true;
> +       else if (err && !find_service_with_state(dev->services,
> +                                       BTD_SERVICE_STATE_CONNECTED))
> +               report_error = true;
> +       else
> +               report_error = false;
>
> -       if (err && l == NULL) {
> +       if (report_error) {
>                 /* Fallback to LE bearer if supported */
>                 if (err == -EHOSTDOWN && dev->le && !dev->le_state.connected) {
>                         err = device_connect_le(dev);
> --
> 2.20.1

Applied, notice that I did some changes to make it a little more
simple but the end result is the same.

-- 
Luiz Augusto von Dentz