This patch adds way to get extended properties from
characteristic extended property descriptor
---
src/shared/gatt-db.c | 62 ++++++++++++++++++++++++++++++++++++++++++++++++++++
src/shared/gatt-db.h | 4 ++++
unit/test-gatt.c | 14 ++++++++++++
3 files changed, 80 insertions(+)
diff --git a/src/shared/gatt-db.c b/src/shared/gatt-db.c
index cc49458..1a1704b 100644
--- a/src/shared/gatt-db.c
+++ b/src/shared/gatt-db.c
@@ -52,6 +52,8 @@ static const bt_uuid_t characteristic_uuid = { .type = BT_UUID16,
.value.u16 = GATT_CHARAC_UUID };
static const bt_uuid_t included_service_uuid = { .type = BT_UUID16,
.value.u16 = GATT_INCLUDE_UUID };
+static const bt_uuid_t ext_desc_uuid = { .type = BT_UUID16,
+ .value.u16 = GATT_CHARAC_EXT_PROPER_UUID };
struct gatt_db {
int ref_count;
@@ -1456,6 +1458,66 @@ bool gatt_db_attribute_get_service_data(const struct gatt_db_attribute *attrib,
return le_to_uuid(decl->value, decl->value_len, uuid);
}
+struct ext_prop_data {
+ bool present;
+ uint8_t prop;
+};
+
+static void set_ext_prop_data(struct gatt_db_attribute *attrib,
+ int err, const uint8_t *value,
+ size_t length, void *user_data)
+{
+ struct ext_prop_data *ext_prop_data = user_data;
+
+ if (err || (length != sizeof(uint8_t)))
+ return;
+
+ ext_prop_data->prop = value[0];
+}
+
+static void check_reliable_supported(struct gatt_db_attribute *attrib,
+ void *user_data)
+{
+ struct ext_prop_data *ext_prop_data = user_data;
+
+ if (ext_prop_data->present)
+ return;
+
+ if (bt_uuid_cmp(&ext_desc_uuid, &attrib->uuid))
+ return;
+
+ ext_prop_data->present = true;
+ ext_prop_data->prop = gatt_db_attribute_read(attrib, 0,
+ BT_ATT_OP_READ_REQ, NULL,
+ set_ext_prop_data, user_data);
+}
+
+bool gatt_db_attribute_get_characteristic_extended_prop(
+ const struct gatt_db_attribute *attrib,
+ uint8_t *ext_prop)
+{
+ struct ext_prop_data ext_prop_data;
+
+ if (!attrib)
+ return false;
+
+ if (bt_uuid_cmp(&characteristic_uuid, &attrib->uuid))
+ return false;
+
+ memset(&ext_prop_data, 0, sizeof(ext_prop_data));
+
+ /*
+ * Cast needed for foreach function. We do not change attrib during
+ * this call
+ */
+ gatt_db_service_foreach_desc((struct gatt_db_attribute *) attrib,
+ check_reliable_supported,
+ &ext_prop_data);
+
+ *ext_prop = ext_prop_data.prop;
+ return ext_prop_data.present;
+}
+
bool gatt_db_attribute_get_char_data(const struct gatt_db_attribute *attrib,
uint16_t *handle,
uint16_t *value_handle,
diff --git a/src/shared/gatt-db.h b/src/shared/gatt-db.h
index 96cceb9..0cb713e 100644
--- a/src/shared/gatt-db.h
+++ b/src/shared/gatt-db.h
@@ -195,6 +195,10 @@ bool gatt_db_attribute_get_service_data(const struct gatt_db_attribute *attrib,
bool *primary,
bt_uuid_t *uuid);
+bool gatt_db_attribute_get_characteristic_extended_prop(
+ const struct gatt_db_attribute *attrib,
+ uint8_t *ext_prop);
+
bool gatt_db_attribute_get_char_data(const struct gatt_db_attribute *attrib,
uint16_t *handle,
uint16_t *value_handle,
diff --git a/unit/test-gatt.c b/unit/test-gatt.c
index 6b65525..ceed486 100644
--- a/unit/test-gatt.c
+++ b/unit/test-gatt.c
@@ -4440,5 +4440,19 @@ int main(int argc, char *argv[])
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff),
raw_pdu(0x01, 0x16, 0x04, 0x00, 0x03));
+ define_test_server("/robustness/no-reliable-characteristic", test_server,
+ ts_large_db_1, NULL,
+ raw_pdu(0x03, 0x00, 0x02),
+ raw_pdu(0x16, 0x82, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03),
+ raw_pdu(0x17, 0x82, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03),
+ raw_pdu(0x16, 0x25, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03),
+ raw_pdu(0x17, 0x25, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03),
+ raw_pdu(0x16, 0x82, 0x00, 0x03, 0x00, 0x04, 0x05, 0x06),
+ raw_pdu(0x17, 0x82, 0x00, 0x03, 0x00, 0x04, 0x05, 0x06),
+ raw_pdu(0x16, 0x25, 0x00, 0x03, 0x00, 0x04, 0x05, 0x06),
+ raw_pdu(0x17, 0x25, 0x00, 0x03, 0x00, 0x04, 0x05, 0x06),
+ raw_pdu(0x18, 0x01),
+ raw_pdu(0x01, 0x18, 0x25, 0x00, 0x06));
+
return tester_run();
}
--
2.5.0
--
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