2013-05-07 16:58:12

by Mikel Astiz

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Subject: [PATCH BlueZ v2 0/3] Issue with incoming connections

From: Mikel Astiz <[email protected]>

v2 fixes the error message in patch 3/3 as pointed out by Vinicius. The rest remains unchanged.

>From original cover-letter:

Vinicius reported this issue and tried to fix it in his patch "profile: Create a service for incomming connections".

As compared to his original patch, this patchset avoid creating an additional service instance (which should already be created) and instead performs a search within the list of existing services for the given device.

Mikel Astiz (3):
device: Add function to find a given service
profile: Fix remotely initiated connections without service
profile: Error-cases for incoming connections

src/device.c | 16 ++++++++++++++++
src/device.h | 3 +++
src/profile.c | 29 ++++++++++++++++++++++++-----
3 files changed, 43 insertions(+), 5 deletions(-)

--
1.8.1.4



2013-05-08 07:18:26

by Johan Hedberg

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Subject: Re: [PATCH BlueZ v2 0/3] Issue with incoming connections

Hi Mikel,

On Tue, May 07, 2013, Mikel Astiz wrote:
> v2 fixes the error message in patch 3/3 as pointed out by Vinicius.
> The rest remains unchanged.
>
> From original cover-letter:
>
> Vinicius reported this issue and tried to fix it in his patch
> "profile: Create a service for incomming connections".
>
> As compared to his original patch, this patchset avoid creating an
> additional service instance (which should already be created) and
> instead performs a search within the list of existing services for the
> given device.
>
> Mikel Astiz (3):
> device: Add function to find a given service
> profile: Fix remotely initiated connections without service
> profile: Error-cases for incoming connections
>
> src/device.c | 16 ++++++++++++++++
> src/device.h | 3 +++
> src/profile.c | 29 ++++++++++++++++++++++++-----
> 3 files changed, 43 insertions(+), 5 deletions(-)

All three patches have been applied. Thanks.

Johan

2013-05-07 16:58:15

by Mikel Astiz

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Subject: [PATCH BlueZ v2 3/3] profile: Error-cases for incoming connections

From: Mikel Astiz <[email protected]>

When an incoming connection attempt is received, if the corresponding
device or service is not found, handle the error-case.
---
src/profile.c | 34 +++++++++++++++++++++++-----------
1 file changed, 23 insertions(+), 11 deletions(-)

diff --git a/src/profile.c b/src/profile.c
index 6a71627..8fd0424 100644
--- a/src/profile.c
+++ b/src/profile.c
@@ -1047,23 +1047,30 @@ static struct ext_io *create_conn(struct ext_io *server, GIOChannel *io,
struct btd_service *service;
struct ext_io *conn;
GIOCondition cond;
+ char addr[18];
+
+ device = adapter_find_device(server->adapter, dst);
+ if (device == NULL) {
+ ba2str(dst, addr);
+ error("%s device %s not found", server->ext->name, addr);
+ return NULL;
+ }
+
+ service = btd_device_get_service(device, server->ext->remote_uuid);
+ if (service == NULL) {
+ ba2str(dst, addr);
+ error("%s service not found for device %s", server->ext->name,
+ addr);
+ return NULL;
+ }

conn = g_new0(struct ext_io, 1);
conn->io = g_io_channel_ref(io);
conn->proto = server->proto;
conn->ext = server->ext;
conn->adapter = btd_adapter_ref(server->adapter);
-
- device = adapter_find_device(server->adapter, dst);
-
- if (device) {
- conn->device = btd_device_ref(device);
-
- service = btd_device_get_service(device,
- server->ext->remote_uuid);
- if (service)
- conn->service = btd_service_ref(service);
- }
+ conn->device = btd_device_ref(device);
+ conn->service = btd_service_ref(service);

cond = G_IO_HUP | G_IO_ERR | G_IO_NVAL;
conn->io_id = g_io_add_watch(io, cond, ext_io_disconnected, conn);
@@ -1137,6 +1144,8 @@ static void ext_confirm(GIOChannel *io, gpointer user_data)
DBG("incoming connect from %s", addr);

conn = create_conn(server, io, &src, &dst);
+ if (conn == NULL)
+ return;

conn->auth_id = btd_request_authorization(&src, &dst, uuid, ext_auth,
conn);
@@ -1175,6 +1184,9 @@ static void ext_direct_connect(GIOChannel *io, GError *err, gpointer user_data)
}

conn = create_conn(server, io, &src, &dst);
+ if (conn == NULL)
+ return;
+
ext->conns = g_slist_append(ext->conns, conn);

ext_connect(io, err, conn);
--
1.8.1.4


2013-05-07 16:58:14

by Mikel Astiz

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Subject: [PATCH BlueZ v2 2/3] profile: Fix remotely initiated connections without service

From: Mikel Astiz <[email protected]>

Remotely initiated connections need to be associated to a service
instance to avoid the following crash as reported by Vinicius Costa:

bluetoothd[14366]: src/profile.c:ext_confirm() incoming connect from A0:4E:04:F6:F5:05
bluetoothd[14366]: src/profile.c:ext_confirm() hfp_hf authorizing connection from A0:4E:04:F6:F5:05
bluetoothd[14366]: src/agent.c:agent_ref() 0x6a85e0: ref=2
bluetoothd[14366]: src/agent.c:agent_authorize_service() authorize service request was sent for /org/bluez/hci0/dev_A0_4E_04_F6_F5_05
bluetoothd[14366]: src/profile.c:ext_svc_complete() Services resolved for A0:4E:04:F6:F5:05
bluetoothd[14366]: src/profile.c:ext_svc_complete() Services resolved but still waiting for authorization
bluetoothd[14366]: src/profile.c:ext_auth() A0:4E:04:F6:F5:05 authorized to connect to hfp_hf
bluetoothd[14366]: src/agent.c:agent_unref() 0x6a85e0: ref=1
bluetoothd[14366]: src/profile.c:ext_connect() hfp_hf connected to A0:4E:04:F6:F5:05

Program received signal SIGSEGV, Segmentation fault.
btd_service_connecting_complete (service=0x0, err=err@entry=0) at src/service.c:315
315 if (service->state != BTD_SERVICE_STATE_DISCONNECTED &&
---
src/profile.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/profile.c b/src/profile.c
index 0500983..6a71627 100644
--- a/src/profile.c
+++ b/src/profile.c
@@ -1044,6 +1044,7 @@ static struct ext_io *create_conn(struct ext_io *server, GIOChannel *io,
bdaddr_t *src, bdaddr_t *dst)
{
struct btd_device *device;
+ struct btd_service *service;
struct ext_io *conn;
GIOCondition cond;

@@ -1055,9 +1056,15 @@ static struct ext_io *create_conn(struct ext_io *server, GIOChannel *io,

device = adapter_find_device(server->adapter, dst);

- if (device)
+ if (device) {
conn->device = btd_device_ref(device);

+ service = btd_device_get_service(device,
+ server->ext->remote_uuid);
+ if (service)
+ conn->service = btd_service_ref(service);
+ }
+
cond = G_IO_HUP | G_IO_ERR | G_IO_NVAL;
conn->io_id = g_io_add_watch(io, cond, ext_io_disconnected, conn);

--
1.8.1.4


2013-05-07 16:58:13

by Mikel Astiz

[permalink] [raw]
Subject: [PATCH BlueZ v2 1/3] device: Add function to find a given service

From: Mikel Astiz <[email protected]>

Search within the list of services for a given remote UUID.
---
src/device.c | 16 ++++++++++++++++
src/device.h | 3 +++
2 files changed, 19 insertions(+)

diff --git a/src/device.c b/src/device.c
index ff4c553..14c3e81 100644
--- a/src/device.c
+++ b/src/device.c
@@ -4376,6 +4376,22 @@ static void service_state_changed(struct btd_service *service,
device_profile_disconnected(device, profile, err);
}

+struct btd_service *btd_device_get_service(struct btd_device *dev,
+ const char *remote_uuid)
+{
+ GSList *l;
+
+ for (l = dev->services; l != NULL; l = g_slist_next(l)) {
+ struct btd_service *service = l->data;
+ struct btd_profile *p = btd_service_get_profile(service);
+
+ if (g_str_equal(p->remote_uuid, remote_uuid))
+ return service;
+ }
+
+ return NULL;
+}
+
void btd_device_init(void)
{
dbus_conn = btd_get_dbus_connection();
diff --git a/src/device.h b/src/device.h
index 7cd11af..70e1502 100644
--- a/src/device.h
+++ b/src/device.h
@@ -121,5 +121,8 @@ unsigned int device_wait_for_svc_complete(struct btd_device *dev,
bool device_remove_svc_complete_callback(struct btd_device *dev,
unsigned int id);

+struct btd_service *btd_device_get_service(struct btd_device *dev,
+ const char *remote_uuid);
+
void btd_device_init(void);
void btd_device_cleanup(void);
--
1.8.1.4