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diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_link_ctx_manager/ble_link_ctx_manager.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_link_ctx_manager/ble_link_ctx_manager.c
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index 0000000..ea60e6d
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+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_link_ctx_manager/ble_link_ctx_manager.c
@@ -0,0 +1,79 @@
+/**
+ * Copyright (c) 2017 - 2018, Nordic Semiconductor ASA
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form, except as embedded into a Nordic
+ * Semiconductor ASA integrated circuit in a product or a software update for
+ * such product, must reproduce the above copyright notice, this list of
+ * conditions and the following disclaimer in the documentation and/or other
+ * materials provided with the distribution.
+ *
+ * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
+ * contributors may be used to endorse or promote products derived from this
+ * software without specific prior written permission.
+ *
+ * 4. This software, with or without modification, must only be used with a
+ * Nordic Semiconductor ASA integrated circuit.
+ *
+ * 5. Any software provided in binary form under this license must not be reverse
+ * engineered, decompiled, modified and/or disassembled.
+ *
+ * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+#include "ble_link_ctx_manager.h"
+#include "sdk_common.h"
+
+
+ret_code_t blcm_link_ctx_get(blcm_link_ctx_storage_t const * const p_link_ctx_storage,
+ uint16_t const conn_handle,
+ void ** const pp_ctx_data)
+{
+ uint8_t conn_id;
+
+ if (pp_ctx_data == NULL)
+ {
+ return NRF_ERROR_NULL;
+ }
+ else
+ {
+ *pp_ctx_data = NULL;
+ }
+
+ VERIFY_PARAM_NOT_NULL(p_link_ctx_storage);
+ VERIFY_PARAM_NOT_NULL(p_link_ctx_storage->p_ctx_data_pool);
+ VERIFY_TRUE((p_link_ctx_storage->link_ctx_size % BYTES_PER_WORD) == 0, NRF_ERROR_INVALID_PARAM);
+
+ conn_id = ble_conn_state_conn_idx(conn_handle);
+
+ if (conn_id == BLE_CONN_STATE_MAX_CONNECTIONS)
+ {
+ return NRF_ERROR_NOT_FOUND;
+ }
+
+ if (conn_id >= p_link_ctx_storage->max_links_cnt)
+ {
+ return NRF_ERROR_NO_MEM;
+ }
+
+ *pp_ctx_data = (void *) ((uint8_t *) p_link_ctx_storage->p_ctx_data_pool +
+ conn_id * p_link_ctx_storage->link_ctx_size);
+ return NRF_SUCCESS;
+}
+