mirror of
https://github.com/Divested-Mobile/DivestOS-Build.git
synced 2024-10-01 01:35:54 -04:00
b0800a1479
Signed-off-by: Tad <tad@spotco.us>
89 lines
3.2 KiB
Diff
89 lines
3.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Qiyu Hu <qiyuh@google.com>
|
|
Date: Wed, 13 Jun 2018 08:08:17 -0700
|
|
Subject: [PATCH] Fix reliable write.
|
|
|
|
We cannot simply assume the write is terminated in reliable write. When
|
|
the reliable write value is longer than MTU allows, the current
|
|
implementation can only send whatever MTU allows and naively set the
|
|
status to GATT_SUCCESS, in the name of "application should verify handle
|
|
offset and value are matched or not". That's why MTU negotiation is a
|
|
workaround as people mention in b/37031096, which just fits all the write
|
|
value into a single request.
|
|
|
|
This also blocks our test on CtsVerifier.
|
|
|
|
Bug: 37031096
|
|
Test: Manual test and confirm that we don't simply send partial value
|
|
Change-Id: I907877608f4672f24c002e630e58bf9133937a5e
|
|
---
|
|
stack/gatt/gatt_cl.c | 24 +++++++++++-------------
|
|
1 file changed, 11 insertions(+), 13 deletions(-)
|
|
|
|
diff --git a/stack/gatt/gatt_cl.c b/stack/gatt/gatt_cl.c
|
|
index 1e8ff1f50..3797d9684 100644
|
|
--- a/stack/gatt/gatt_cl.c
|
|
+++ b/stack/gatt/gatt_cl.c
|
|
@@ -321,7 +321,7 @@ void gatt_send_queue_write_cancel (tGATT_TCB *p_tcb, tGATT_CLCB *p_clcb, tGATT_E
|
|
BOOLEAN gatt_check_write_long_terminate(tGATT_TCB *p_tcb, tGATT_CLCB *p_clcb, tGATT_VALUE *p_rsp_value)
|
|
{
|
|
tGATT_VALUE *p_attr = (tGATT_VALUE *)p_clcb->p_attr_buf;
|
|
- BOOLEAN exec = FALSE;
|
|
+ BOOLEAN terminate = FALSE;
|
|
tGATT_EXEC_FLAG flag = GATT_PREP_WRITE_EXEC;
|
|
|
|
GATT_TRACE_DEBUG("gatt_check_write_long_terminate ");
|
|
@@ -335,22 +335,21 @@ BOOLEAN gatt_check_write_long_terminate(tGATT_TCB *p_tcb, tGATT_CLCB *p_clcb, t
|
|
/* data does not match */
|
|
p_clcb->status = GATT_ERROR;
|
|
flag = GATT_PREP_WRITE_CANCEL;
|
|
- exec = TRUE;
|
|
+ terminate = TRUE;
|
|
}
|
|
else /* response checking is good */
|
|
{
|
|
p_clcb->status = GATT_SUCCESS;
|
|
/* update write offset and check if end of attribute value */
|
|
if ((p_attr->offset += p_rsp_value->len) >= p_attr->len)
|
|
- exec = TRUE;
|
|
+ terminate = TRUE;
|
|
}
|
|
}
|
|
- if (exec)
|
|
+ if (terminate && p_clcb->op_subtype != GATT_WRITE_PREPARE)
|
|
{
|
|
gatt_send_queue_write_cancel (p_tcb, p_clcb, flag);
|
|
- return TRUE;
|
|
}
|
|
- return FALSE;
|
|
+ return terminate;
|
|
}
|
|
/*******************************************************************************
|
|
**
|
|
@@ -654,19 +653,18 @@ void gatt_process_prep_write_rsp (tGATT_TCB *p_tcb, tGATT_CLCB *p_clcb, UINT8 op
|
|
|
|
memcpy (value.value, p, value.len);
|
|
|
|
+ if (!gatt_check_write_long_terminate(p_tcb, p_clcb, &value))
|
|
+ {
|
|
+ gatt_send_prepare_write(p_tcb, p_clcb);
|
|
+ return;
|
|
+ }
|
|
+
|
|
if (p_clcb->op_subtype == GATT_WRITE_PREPARE)
|
|
{
|
|
- p_clcb->status = GATT_SUCCESS;
|
|
/* application should verify handle offset
|
|
and value are matched or not */
|
|
-
|
|
gatt_end_operation(p_clcb, p_clcb->status, &value);
|
|
}
|
|
- else if (p_clcb->op_subtype == GATT_WRITE )
|
|
- {
|
|
- if (!gatt_check_write_long_terminate(p_tcb, p_clcb, &value))
|
|
- gatt_send_prepare_write(p_tcb, p_clcb);
|
|
- }
|
|
|
|
}
|
|
/*******************************************************************************
|