Re: [PATCH BlueZ] mesh: Fix proxy PDU SAR msg length

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Assignment outside if statement.
---
 mesh/gatt.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/mesh/gatt.c b/mesh/gatt.c
index 9116a9de1..693577a3a 100644
--- a/mesh/gatt.c
+++ b/mesh/gatt.c
@@ -383,7 +383,7 @@ static bool pipe_read(struct io *io, bool prov,
void *user_data)
        uint8_t buf[512];
        uint8_t *res;
        int fd = io_get_fd(io);
-       ssize_t len;
+       ssize_t len, len_sar;

        if (io != notify_io)
                return true;
@@ -393,14 +393,14 @@ static bool pipe_read(struct io *io, bool prov,
void *user_data)
                        break;

                res = buf;
-               mesh_gatt_sar(&res, len);
-
-               if (prov)
-                       prov_data_ready(node, res, len);
-               else
-                       net_data_ready(res, len);
+               len_sar = mesh_gatt_sar(&res, len);
+               if (len_sar) {
+                       if (prov)
+                               prov_data_ready(node, res, len_sar);
+                       else
+                               net_data_ready(res, len_sar);
+               }
        }
-
        return true;
 }


2018-03-16 9:36 GMT+01:00 Luiz Augusto von Dentz <luiz.dentz@xxxxxxxxx>:
> Hi Robert,
>
> On Fri, Mar 16, 2018 at 10:14 AM, Robert Lubaś <robert.lubas@xxxxxxxxxxx> wrote:
>> In read_pipe function there was a mishandled case when the msg has
>> more than one segment. As a result e.g. after provisioning the
>> capabilities discovery was incorrect parsed.
>>
>> ---
>>  mesh/gatt.c | 15 +++++++--------
>>  1 file changed, 7 insertions(+), 8 deletions(-)
>>
>> diff --git a/mesh/gatt.c b/mesh/gatt.c
>> index 9116a9de1..8fecac10b 100644
>> --- a/mesh/gatt.c
>> +++ b/mesh/gatt.c
>> @@ -383,7 +383,7 @@ static bool pipe_read(struct io *io, bool prov,
>> void *user_data)
>>         uint8_t buf[512];
>>         uint8_t *res;
>>         int fd = io_get_fd(io);
>> -       ssize_t len;
>> +       ssize_t len, len_sar;
>>
>>         if (io != notify_io)
>>                 return true;
>> @@ -393,14 +393,13 @@ static bool pipe_read(struct io *io, bool prov,
>> void *user_data)
>>                         break;
>>
>>                 res = buf;
>> -               mesh_gatt_sar(&res, len);
>> -
>> -               if (prov)
>> -                       prov_data_ready(node, res, len);
>> -               else
>> -                       net_data_ready(res, len);
>> +               if (len_sar = mesh_gatt_sar(&res, len)) {
>
> Leave the assignment outside of if statement like:
>
> len_sar =...
> if (len_sar)...
>
>> +                       if (prov)
>> +                               prov_data_ready(node, res, len_sar);
>> +                       else
>> +                               net_data_ready(res, len_sar);
>> +               }
>>         }
>> -
>>         return true;
>>  }
>
> Other than that it looks fine.
>
> --
> Luiz Augusto von Dentz



-- 
Robert Lubaś
Software Developer

Silvair by Seed Labs
Jasnogórska 44
31-358 Krakow
POLAND

www.silvair.com

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