xref: /btstack/src/classic/obex_srm_client.h (revision 30f40b4a93d1575d3c8ea6cd165c7b40ef56df32)

/*
 * Copyright (C) 2024 BlueKitchen GmbH
 *
 * 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
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 * 2. Redistributions in binary form 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 the copyright holders nor the names of
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 * 4. Any redistribution, use, or modification is done solely for
 *    personal benefit and not for any commercial purpose or for
 *    monetary gain.
 *
 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BLUEKITCHEN
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#ifndef OBEX_SRM_CLIENT_H
#define OBEX_SRM_CLIENT_H

#include <stdint.h>
#include "btstack_bool.h"

#if defined __cplusplus
extern "C" {
#endif

typedef enum {
    OBEX_SRM_CLIENT_STATE_DISABLED,
    OBEX_SRM_CLIENT_STATE_W4_CONFIRM,
    OBEX_SRM_CLIENT_STATE_ENABLED_BUT_WAITING,
    OBEX_SRM_CLIENT_STATE_ENABLED
} obex_srm_client_state_t;

typedef struct {
    obex_srm_client_state_t srm_state;

    uint8_t srm_value;
    uint8_t srmp_value;
} obex_srm_client_t;

/**
 * Init SRM to disabled state
 * SRM needs to be disabled for each new GET/PUT operation
 * @param obex_srm
 */
void obex_srm_client_init(obex_srm_client_t * obex_srm);

/**
 * Reset SRM/SRMP fields
 * Needs to be called before parsing response
 * @param obex_srm
 */
void obex_srm_client_reset_fields(obex_srm_client_t * obex_srm);

/**
 * Update SRM state based on SRM headers
 * @param obex_srm
 */
void obex_srm_client_handle_headers(obex_srm_client_t *obex_srm);

/**
 * Check if SRM is active
 * @param obex_srm
 */
bool obex_srm_client_is_srm_active(obex_srm_client_t *obex_srm);

/**
 * Add SRM headers if
 * @param obex_srm
 * @param goep_cid
 */
void obex_srm_client_prepare_header(obex_srm_client_t *obex_srm, uint16_t goep_cid);

#if defined __cplusplus
}
#endif

#endif