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diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/serialization/common/cond_field_serialization.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/serialization/common/cond_field_serialization.c
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+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/serialization/common/cond_field_serialization.c
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+/**
+ * Copyright (c) 2014 - 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 "nrf_error.h"
+#include "cond_field_serialization.h"
+#include "ble_serialization.h"
+#include <stddef.h>
+
+uint32_t cond_field_enc(void const * const p_field,
+ uint8_t * const p_buf,
+ uint32_t buf_len,
+ uint32_t * const p_index,
+ field_encoder_handler_t fp_field_encoder)
+{
+ uint32_t err_code = NRF_SUCCESS;
+
+ SER_ASSERT_LENGTH_LEQ(*p_index + 1, buf_len);
+ p_buf[*p_index] = (p_field == NULL) ? SER_FIELD_NOT_PRESENT : SER_FIELD_PRESENT;
+ *p_index += 1;
+
+ if (p_field && (fp_field_encoder != NULL))
+ {
+ err_code = fp_field_encoder(p_field, p_buf, buf_len, p_index);
+ }
+
+ return err_code;
+}
+
+
+uint32_t cond_field_dec(uint8_t const * const p_buf,
+ uint32_t buf_len,
+ uint32_t * const p_index,
+ void * * const pp_field,
+ field_decoder_handler_t fp_field_decoder)
+{
+ uint32_t err_code = NRF_SUCCESS;
+ uint8_t is_present;
+
+ SER_ASSERT_LENGTH_LEQ(1, buf_len - *p_index);
+ uint8_dec(p_buf, buf_len, p_index, &is_present);
+
+ if (is_present == SER_FIELD_PRESENT)
+ {
+ SER_ASSERT_NOT_NULL(pp_field);
+ SER_ASSERT_NOT_NULL(*pp_field);
+
+ if (fp_field_decoder != NULL)
+ {
+ err_code = fp_field_decoder(p_buf, buf_len, p_index, *pp_field);
+ }
+ }
+ else if (is_present == SER_FIELD_NOT_PRESENT)
+ {
+ if (pp_field != NULL)
+ {
+ *pp_field = NULL;
+ }
+ }
+ else
+ {
+ err_code = NRF_ERROR_INVALID_DATA;
+ }
+
+ return err_code;
+}