/*
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * This file is part of the CoAP library libcoap. Please see README for terms
 * of use.
 */

/* Memory pool definitions for the libcoap when used with lwIP (which has its
 * own mechanism for quickly allocating chunks of data with known sizes). Has
 * to be findable by lwIP (ie. an #include <lwippools.h> must either directly
 * include this or include something more generic which includes this), and
 * MEMP_USE_CUSTOM_POOLS has to be set in lwipopts.h. */

#include "coap3/coap_internal.h"
#include "coap3/coap_net.h"
#include "coap3/coap_resource.h"
#include "coap3/coap_subscribe.h"
#ifdef COAP_WITH_LIBTINYDTLS
#ifndef LWIP_TINYDTLS_LOCAL_FIX
#define LWIP_TINYDTLS_LOCAL_FIX
#include <lwip/ip_addr.h>
/* Local copies of struct to simplify #include nightmare */
typedef struct {
  unsigned char size;     /**< size of session_t::addr */
  unsigned short port;    /**< transport layer port */
  ip_addr_t addr;         /**< session IP address */
  int ifindex;            /**< network interface index */
} l_session_t;

typedef struct l_coap_tiny_context_t {
  struct dtls_context_t *dtls_context;
  coap_context_t *coap_context;
  coap_dtls_pki_t setup_data;
  coap_binary_t *priv_key;
  coap_binary_t *pub_key;
} l_coap_tiny_context_t;

#endif /* LWIP_TINYDTLS_LOCAL_FIX */
#endif /* COAP_WITH_LIBTINYDTLS */

#ifndef MEMP_NUM_COAPCONTEXT
#define MEMP_NUM_COAPCONTEXT 1
#endif

#ifndef MEMP_NUM_COAPENDPOINT
#ifdef COAP_WITH_LIBTINYDTLS
#define MEMP_NUM_COAPENDPOINT 2
#else /* ! COAP_WITH_LIBTINYDTLS */
#define MEMP_NUM_COAPENDPOINT 1
#endif /* ! COAP_WITH_LIBTINYDTLS */
#endif

/* 1 is sufficient as this is very short-lived */
#ifndef MEMP_NUM_COAPPACKET
#define MEMP_NUM_COAPPACKET 1
#endif

#ifndef MEMP_NUM_COAPNODE
#define MEMP_NUM_COAPNODE 5
#endif

#ifndef MEMP_NUM_COAPPDU
#define MEMP_NUM_COAPPDU MEMP_NUM_COAPNODE
#endif

#ifndef MEMP_NUM_COAPSESSION
#define MEMP_NUM_COAPSESSION 2
#endif

#ifndef MEMP_NUM_COAP_SUBSCRIPTION
#define MEMP_NUM_COAP_SUBSCRIPTION 4
#endif

#ifndef MEMP_NUM_COAPRESOURCE
#define MEMP_NUM_COAPRESOURCE 10
#endif

#ifndef MEMP_NUM_COAPRESOURCEATTR
#define MEMP_NUM_COAPRESOURCEATTR 20
#endif

#ifndef MEMP_NUM_COAPOPTLIST
#define MEMP_NUM_COAPOPTLIST 5
#endif

#ifndef MEMP_LEN_COAPOPTLIST
#define MEMP_LEN_COAPOPTLIST 12
#endif

#ifndef MEMP_NUM_COAPSTRING
#define MEMP_NUM_COAPSTRING 10
#endif

#ifndef MEMP_LEN_COAPSTRING
#define MEMP_LEN_COAPSTRING 40
#endif

#ifndef MEMP_NUM_COAPCACHE_KEYS
#define MEMP_NUM_COAPCACHE_KEYS        (2U)
#endif /* MEMP_NUM_COAPCACHE_KEYS */

#ifndef MEMP_NUM_COAPCACHE_ENTRIES
#define MEMP_NUM_COAPCACHE_ENTRIES        (2U)
#endif /* MEMP_NUM_COAPCACHE_ENTRIES */

#ifndef MEMP_NUM_COAPPDUBUF
#define MEMP_NUM_COAPPDUBUF 2
#endif

#ifndef MEMP_LEN_COAPPDUBUF
#define MEMP_LEN_COAPPDUBUF 400
#endif

#ifndef MEMP_NUM_COAPLGXMIT
#define MEMP_NUM_COAPLGXMIT 2
#endif

#ifndef MEMP_NUM_COAPLGCRCV
#define MEMP_NUM_COAPLGCRCV 2
#endif

#ifndef MEMP_NUM_COAPLGSRCV
#define MEMP_NUM_COAPLGSRCV 2
#endif

#ifndef MEMP_NUM_COAPDIGESTCTX
#define MEMP_NUM_COAPDIGESTCTX 4
#endif

#ifndef MEMP_NUM_COAPDTLS_SESSION
#define MEMP_NUM_COAPDTLS_SESSION 1
#endif

#ifndef MEMP_NUM_COAPDTLS_CONTEXT
#define MEMP_NUM_COAPDTLS_CONTEXT 1
#endif

LWIP_MEMPOOL(COAP_CONTEXT, MEMP_NUM_COAPCONTEXT, sizeof(coap_context_t), "COAP_CONTEXT")
#ifdef COAP_SERVER_SUPPORT
LWIP_MEMPOOL(COAP_ENDPOINT, MEMP_NUM_COAPENDPOINT, sizeof(coap_endpoint_t), "COAP_ENDPOINT")
#endif /* COAP_SERVER_SUPPORT */
LWIP_MEMPOOL(COAP_PACKET, MEMP_NUM_COAPPACKET, sizeof(coap_packet_t), "COAP_PACKET")
LWIP_MEMPOOL(COAP_NODE, MEMP_NUM_COAPNODE, sizeof(coap_queue_t), "COAP_NODE")
LWIP_MEMPOOL(COAP_PDU, MEMP_NUM_COAPPDU, sizeof(coap_pdu_t), "COAP_PDU")
LWIP_MEMPOOL(COAP_SESSION, MEMP_NUM_COAPSESSION, sizeof(coap_session_t), "COAP_SESSION")
#ifdef COAP_SERVER_SUPPORT
LWIP_MEMPOOL(COAP_SUBSCRIPTION, MEMP_NUM_COAP_SUBSCRIPTION, sizeof(coap_subscription_t),
             "COAP_SUBSCRIPTION")
LWIP_MEMPOOL(COAP_RESOURCE, MEMP_NUM_COAPRESOURCE, sizeof(coap_resource_t), "COAP_RESOURCE")
LWIP_MEMPOOL(COAP_RESOURCEATTR, MEMP_NUM_COAPRESOURCEATTR, sizeof(coap_attr_t), "COAP_RESOURCEATTR")
#endif /* COAP_SERVER_SUPPORT */
LWIP_MEMPOOL(COAP_OPTLIST, MEMP_NUM_COAPOPTLIST, sizeof(coap_optlist_t)+MEMP_LEN_COAPOPTLIST,
             "COAP_OPTLIST")
LWIP_MEMPOOL(COAP_STRING, MEMP_NUM_COAPSTRING, sizeof(coap_string_t)+MEMP_LEN_COAPSTRING,
             "COAP_STRING")
#ifdef COAP_SERVER_SUPPORT
LWIP_MEMPOOL(COAP_CACHE_KEY, MEMP_NUM_COAPCACHE_KEYS, sizeof(coap_cache_key_t), "COAP_CACHE_KEY")
LWIP_MEMPOOL(COAP_CACHE_ENTRY, MEMP_NUM_COAPCACHE_ENTRIES, sizeof(coap_cache_entry_t),
             "COAP_CACHE_ENTRY")
#endif /* COAP_SERVER_SUPPORT */
LWIP_MEMPOOL(COAP_PDU_BUF, MEMP_NUM_COAPPDUBUF, MEMP_LEN_COAPPDUBUF, "COAP_PDU_BUF")
LWIP_MEMPOOL(COAP_LG_XMIT, MEMP_NUM_COAPLGXMIT, sizeof(coap_lg_xmit_t), "COAP_LG_XMIT")
#ifdef COAP_CLIENT_SUPPORT
LWIP_MEMPOOL(COAP_LG_CRCV, MEMP_NUM_COAPLGCRCV, sizeof(coap_lg_crcv_t), "COAP_LG_CRCV")
#endif /* COAP_CLIENT_SUPPORT */
#ifdef COAP_SERVER_SUPPORT
LWIP_MEMPOOL(COAP_LG_SRCV, MEMP_NUM_COAPLGSRCV, sizeof(coap_lg_srcv_t), "COAP_LG_SRCV")
LWIP_MEMPOOL(COAP_DIGEST_CTX, MEMP_NUM_COAPDIGESTCTX, sizeof(coap_digest_t) + sizeof(size_t),
             "COAP_DIGEST_CTX")
#endif /* COAP_SERVER_SUPPORT */
#ifdef COAP_WITH_LIBTINYDTLS
LWIP_MEMPOOL(COAP_DTLS_SESSION, MEMP_NUM_COAPDTLS_SESSION, sizeof(l_session_t), "COAP_DTLS_SESSION")
LWIP_MEMPOOL(COAP_DTLS_CONTEXT, MEMP_NUM_COAPDTLS_CONTEXT, sizeof(l_coap_tiny_context_t),
             "COAP_DTLS_CONTEXT")
#endif /* COAP_WITH_LIBTINYDTLS */