libspdm package crashing

[PoojaGaur1708]

Hello , i am using libspdm package to send spdm packet .

I follow spdm_client_init function.
But when it calls , my code crash in libspdm_acquire_sender_buffer function.
As debug , value in this field of strure which is function pointer , having value 0x0. So pls help me urgently / suggest me where and how to fill the value in this function pointer.
Seems function is missing for this .

libspdm_return_t libspdm_acquire_sender_buffer (
libspdm_context_t *spdm_context, size_t *max_msg_size, void **msg_buf_ptr)
{
libspdm_return_t status;

LIBSPDM_ASSERT (spdm_context->sender_buffer == NULL);
LIBSPDM_ASSERT (spdm_context->sender_buffer_size == 0);
 status = spdm_context->acquire_sender_buffer (spdm_context, max_msg_size, msg_buf_ptr);  /**### /CRASH AT THIS POINT**
if (status != LIBSPDM_STATUS_SUCCESS) {
    return status;
}
spdm_context->sender_buffer = *msg_buf_ptr;
spdm_context->sender_buffer_size = *max_msg_size;
return LIBSPDM_STATUS_SUCCESS;

}

[jyao1]

Seems duplicated with #819