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RIOT/sys/include/net/coap.h
bors[bot] c0ae75b339
Merge #20003 #20028 #20036 #20041 
20003: coap: create typedef for CoAP methods r=benpicco a=benpicco



20028: nanocoap: fix incorrect uses of coap_get_code() r=benpicco a=benpicco



20036: boards/nucleo-l4r5zi : add PWM configuration r=benpicco a=krzysztof-cabaj

### Contribution description

This PR adds to the Nucleo-l4r5zi PWM configuration

### Testing procedure

Flash the board using `tests/periph/pwm` program. Check if you could, for example, change LED 
intensity using PWM. 

### Issues/PRs references

None.

20041: pkg/littlefs2: bump to v2.8.1 r=benpicco a=bergzand

### Contribution description

Minor version number bump.

### Testing procedure

- Check if I copied the correct commit hash.
- Run the tests.


### Issues/PRs references

None

Co-authored-by: Benjamin Valentin <benjamin.valentin@ml-pa.com>
Co-authored-by: krzysztof-cabaj <kcabaj@gmail.com>
Co-authored-by: Koen Zandberg <koen@bergzand.net>
2023-11-02 11:01:23 +00:00

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/*
* Copyright (C) 2018 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @defgroup net_coap CoAP defines
* @ingroup net
* @brief Generic CoAP values as defined by RFC7252
* @{
*
* @file
* @brief Generic CoAP values as defined by RFC7252
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
*/
#ifndef NET_COAP_H
#define NET_COAP_H
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Default CoAP port
*/
#define COAP_PORT (5683)
/**
* @brief Default CoAP DTLS port
*/
#define COAPS_PORT (5684)
#define COAP_V1 (1) /**< Identifier for CoAP version 1 (RFC 7252) */
/**
* @name CoAP option numbers
* @{
*/
#define COAP_OPT_IF_MATCH (1)
#define COAP_OPT_URI_HOST (3)
#define COAP_OPT_ETAG (4)
#define COAP_OPT_IF_NONE_MATCH (5)
#define COAP_OPT_OBSERVE (6)
#define COAP_OPT_LOCATION_PATH (8)
/**
* @brief OSCORE option
*
* Indicates that the CoAP message is an OSCORE message and that it contains a
* compressed COSE object.
*
* @see [RFC 8613](https://datatracker.ietf.org/doc/html/rfc8613)
*/
#define COAP_OPT_OSCORE (9)
#define COAP_OPT_URI_PATH (11)
#define COAP_OPT_CONTENT_FORMAT (12)
#define COAP_OPT_MAX_AGE (14)
#define COAP_OPT_URI_QUERY (15)
/**
* @brief Hop-Limit option
*
* Used to prevent infinite loops when communicating over multiple proxies.
*
* @see [RFC 8768](https://datatracker.ietf.org/doc/html/rfc8768)
*/
#define COAP_OPT_HOP_LIMIT (16)
#define COAP_OPT_ACCEPT (17)
/**
* @brief Q-Block1 option
*
* Used for block-wise transfer supporting robust transmission in requests.
*
* @see [RFC 9177](https://datatracker.ietf.org/doc/html/rfc9177)
*/
#define COAP_OPT_Q_BLOCK1 (19)
#define COAP_OPT_LOCATION_QUERY (20)
/**
* @brief EDHOC option
*
* Used in a CoAP request to signal that the request payload conveys both an
* EDHOC message_3 and OSCORE protected data, combined together.
*
* @see [draft-ietf-core-oscore-edhoc-02](https://datatracker.ietf.org/doc/draft-ietf-core-oscore-edhoc/02/)
*/
#define COAP_OPT_EDHOC (21)
#define COAP_OPT_BLOCK2 (23)
#define COAP_OPT_BLOCK1 (27)
/**
* @brief Size2 option
*
* Used by clients to request an estimate of a resource's
* total size from a server during block-wise transfer and by
* servers to inform clients about the size.
*
* @see [RFC 7959](https://datatracker.ietf.org/doc/html/rfc7959)
* @see [RFC 8613](https://datatracker.ietf.org/doc/html/rfc8613)
*/
#define COAP_OPT_SIZE2 (28)
/**
* @brief Q-Block2 option
*
* Used for block-wise transfer supporting robust transmission in responses.
*
* @see [RFC 9177](https://datatracker.ietf.org/doc/html/rfc9177)
*/
#define COAP_OPT_Q_BLOCK2 (31)
#define COAP_OPT_PROXY_URI (35)
#define COAP_OPT_PROXY_SCHEME (39)
/**
* @brief Size1 option
*
* Used by clients to give servers an estimate of the total request
* payload size during block-wise server and by servers to indicate
* the maximum acceptable payload size in a 4.13 ("Request Entity
* Too Large") response.
*
* @see [RFC 7252](https://datatracker.ietf.org/doc/html/rfc7252)
* @see [RFC 7959](https://datatracker.ietf.org/doc/html/rfc7959)
* @see [RFC 8613](https://datatracker.ietf.org/doc/html/rfc8613)
*/
#define COAP_OPT_SIZE1 (60)
/**
* @brief Echo option
*
* Enables a CoAP server to verify the freshness of a request or to force a
* client to demonstrate reachability at its claimed network address.
*
* @see [RFC 9175](https://datatracker.ietf.org/doc/html/rfc9175)
*/
#define COAP_OPT_ECHO (252)
/**
* @brief suppress CoAP response
* @see [RFC 7968](https://datatracker.ietf.org/doc/html/rfc7967)
*/
#define COAP_OPT_NO_RESPONSE (258)
/**
* @brief Request-Tag option
*
* Allows a CoAP server to match block-wise message fragments belonging to the
* same request.
*
* @see [RFC 9175](https://datatracker.ietf.org/doc/html/rfc9175)
*/
#define COAP_OPT_REQUEST_TAG (292)
/** @} */
/**
* @name Message types -- confirmable, non-confirmable, etc.
* @{
*/
#define COAP_TYPE_CON (0)
#define COAP_TYPE_NON (1)
#define COAP_TYPE_ACK (2)
#define COAP_TYPE_RST (3)
/** @} */
/**
* @name CoAP method codes used in header
* @{
*/
#define COAP_CLASS_REQ (0) /**< Code Class for Request */
/**
* @brief CoAP method codes used in request
*/
typedef enum {
COAP_METHOD_GET = 1, /**< GET request (no paylod) */
COAP_METHOD_POST = 2, /**< POST request (resource processes payload) */
COAP_METHOD_PUT = 3, /**< PUT request (update resource with payload) */
COAP_METHOD_DELETE = 4, /**< DELETE request (no payload, remove resource)*/
COAP_METHOD_FETCH = 5, /**< FETCH request (RFC 8132) */
COAP_METHOD_PATCH = 6, /**< PATCH request (RFC 8132) */
COAP_METHOD_IPATCH = 7, /**< iPATCH request (RFC 8132) */
} coap_method_t;
/** @} */
/**
* @name Empty CoAP message code
* @{
*/
#define COAP_CODE_EMPTY (0)
/** @} */
/**
* @name Response message codes: success
* @{
*/
#define COAP_CLASS_SUCCESS (2)
#define COAP_CODE_CREATED ((2 << 5) | 1)
#define COAP_CODE_DELETED ((2 << 5) | 2)
#define COAP_CODE_VALID ((2 << 5) | 3)
#define COAP_CODE_CHANGED ((2 << 5) | 4)
#define COAP_CODE_204 ((2 << 5) | 4)
#define COAP_CODE_CONTENT ((2 << 5) | 5)
#define COAP_CODE_205 ((2 << 5) | 5)
#define COAP_CODE_CONTINUE ((2 << 5) | 31)
#define COAP_CODE_231 ((2 << 5) | 31)
/** @} */
/**
* @name Response message codes: client error
* @{
*/
#define COAP_CLASS_CLIENT_FAILURE (4)
#define COAP_CODE_BAD_REQUEST ((4 << 5) | 0)
#define COAP_CODE_UNAUTHORIZED ((4 << 5) | 1)
#define COAP_CODE_BAD_OPTION ((4 << 5) | 2)
#define COAP_CODE_FORBIDDEN ((4 << 5) | 3)
#define COAP_CODE_PATH_NOT_FOUND ((4 << 5) | 4)
#define COAP_CODE_404 ((4 << 5) | 4)
#define COAP_CODE_METHOD_NOT_ALLOWED ((4 << 5) | 5)
#define COAP_CODE_NOT_ACCEPTABLE ((4 << 5) | 6)
#define COAP_CODE_REQUEST_ENTITY_INCOMPLETE ((4 << 5) | 8)
#define COAP_CODE_CONFLICT ((4 << 5) | 9)
#define COAP_CODE_PRECONDITION_FAILED ((4 << 5) | 12)
#define COAP_CODE_REQUEST_ENTITY_TOO_LARGE ((4 << 5) | 13)
#define COAP_CODE_UNSUPPORTED_CONTENT_FORMAT ((4 << 5) | 15)
#define COAP_CODE_UNPROCESSABLE_ENTITY ((4 << 5) | 22)
#define COAP_CODE_TOO_MANY_REQUESTS ((4 << 5) | 29)
/** @} */
/**
* @name Response message codes: server error
* @{
*/
#define COAP_CLASS_SERVER_FAILURE (5)
#define COAP_CODE_INTERNAL_SERVER_ERROR ((5 << 5) | 0)
#define COAP_CODE_NOT_IMPLEMENTED ((5 << 5) | 1)
#define COAP_CODE_BAD_GATEWAY ((5 << 5) | 2)
#define COAP_CODE_SERVICE_UNAVAILABLE ((5 << 5) | 3)
#define COAP_CODE_GATEWAY_TIMEOUT ((5 << 5) | 4)
#define COAP_CODE_PROXYING_NOT_SUPPORTED ((5 << 5) | 5)
/** @} */
/**
* @name Content-Format option codes
* @anchor net_coap_format
* @{
*/
#define COAP_FORMAT_TEXT (0)
/**
* @brief Content-Type `application/cose; cose-type="cose-encrypt0"`
* @see [RFC 9052](https://datatracker.ietf.org/doc/html/rfc9052)
*/
#define COAP_FORMAT_COSE_ENCRYPT0 (16)
/**
* @brief Content-Type `application/cose; cose-type="cose-mac0"`
* @see [RFC 9052](https://datatracker.ietf.org/doc/html/rfc9052)
*/
#define COAP_FORMAT_COSE_MAC0 (17)
/**
* @brief Content-Type `application/cose; cose-type="cose-sign1"`
* @see [RFC 9052](https://datatracker.ietf.org/doc/html/rfc9052)
*/
#define COAP_FORMAT_COSE_SIGN1 (18)
/**
* @brief Content-Type `application/ace+cbor`
* @see [RFC 9200](https://datatracker.ietf.org/doc/html/rfc9200)
*/
#define COAP_FORMAT_ACE_CBOR (19)
/**
* @brief Content-Type `image/gif`
* @see https://www.w3.org/Graphics/GIF/spec-gif89a.txt
*/
#define COAP_FORMAT_IMAGE_GIF (21)
/**
* @brief Content-Type `image/jpeg`
* @see [ISO/IEC 10918-5](https://www.itu.int/rec/T-REC-T.871-201105-I/en)
*/
#define COAP_FORMAT_IMAGE_JPEG (22)
/**
* @brief Content-Type `image/png`
* @see [RFC 2083](https://datatracker.ietf.org/doc/html/rfc2083)
*/
#define COAP_FORMAT_IMAGE_PNG (23)
#define COAP_FORMAT_LINK (40)
#define COAP_FORMAT_XML (41)
#define COAP_FORMAT_OCTET (42)
#define COAP_FORMAT_EXI (47)
#define COAP_FORMAT_JSON (50)
#define COAP_FORMAT_JSON_PATCH_JSON (51)
#define COAP_FORMAT_MERGE_PATCH_JSON (52)
#define COAP_FORMAT_CBOR (60)
/**
* @brief Content-Type `application/cwt`
* @see [RFC 8392](https://datatracker.ietf.org/doc/html/rfc8392)
*/
#define COAP_FORMAT_CWT (61)
/**
* @brief Content-Type `application/multipart-core`
* @see [RFC 8710](https://datatracker.ietf.org/doc/html/rfc8710)
*/
#define COAP_FORMAT_MULTIPART_CORE (62)
/**
* @brief Content-Type `application/cbor-seq`
* @see [RFC 8742](https://datatracker.ietf.org/doc/html/rfc8742)
*/
#define COAP_FORMAT_CBOR_SEQ (63)
/**
* @brief Content-Type `application/cose; cose-type="cose-encrypt"`
* @see [RFC 9052](https://datatracker.ietf.org/doc/html/rfc9052)
*/
#define COAP_FORMAT_COSE_ENCRYPT (96)
/**
* @brief Content-Type `application/cose; cose-type="cose-mac"`
* @see [RFC 9052](https://datatracker.ietf.org/doc/html/rfc9052)
*/
#define COAP_FORMAT_COSE_MAC (97)
/**
* @brief Content-Type `application/cose; cose-type="cose-sign"`
* @see [RFC 9052](https://datatracker.ietf.org/doc/html/rfc9052)
*/
#define COAP_FORMAT_COSE_SIGN (98)
/**
* @brief Content-Type `application/cose-key`
* @see [RFC 9052](https://datatracker.ietf.org/doc/html/rfc9052)
*/
#define COAP_FORMAT_COSE_KEY (101)
/**
* @brief Content-Type `application/cose-key-set`
* @see [RFC 9052](https://datatracker.ietf.org/doc/html/rfc9052)
*/
#define COAP_FORMAT_COSE_KEY_SET (102)
#define COAP_FORMAT_SENML_JSON (110)
#define COAP_FORMAT_SENSML_JSON (111)
#define COAP_FORMAT_SENML_CBOR (112)
#define COAP_FORMAT_SENSML_CBOR (113)
#define COAP_FORMAT_SENML_EXI (114)
#define COAP_FORMAT_SENSML_EXI (115)
/**
* @brief Content-Type `application/yang-data+cbor; id=sid`
* @see [RFC 9254](https://datatracker.ietf.org/doc/html/rfc9254)
*/
#define COAP_FORMAT_YANG_DATA_CBOR_SID (140)
/**
* @brief Content-Type `application/coap-group+json`
* @see [RFC 7390](https://datatracker.ietf.org/doc/html/rfc7390)
*/
#define COAP_FORMAT_COAP_GROUP_JSON (256)
/**
* @brief Content-Type `application/concise-problem-details+cbor`
* @see [RFC 9290](https://datatracker.ietf.org/doc/html/rfc9290)
*/
#define COAP_FORMAT_PROBLEM_DETAILS_CBOR (257)
/**
* @brief Content-Type `application/swid+cbor`
* @see [RFC 9393](https://datatracker.ietf.org/doc/html/rfc9393)
*/
#define COAP_FORMAT_SWID_CBOR (258)
/**
* @brief Content-Type `application/pkixcmp`
* @see [draft-ietf-ace-cmpv2-coap-transport](https://datatracker.ietf.org/doc/draft-ietf-ace-cmpv2-coap-transport/)
* @see [RFC 4210](https://datatracker.ietf.org/doc/html/rfc4210)
*/
#define COAP_FORMAT_PKIXCMP (259)
/**
* @brief Content-Type `application/dots+cbor`
* @see [RFC 9132](https://datatracker.ietf.org/doc/html/rfc9132)
*/
#define COAP_FORMAT_DOTS_CBOR (271)
/**
* @brief Content-Type `application/missing-blocks+cbor-seq`
* @see [RFC 9177](https://datatracker.ietf.org/doc/html/rfc9177)
*/
#define COAP_FORMAT_MISSING_BLOCKS_CBOR_SEQ (272)
/**
* @brief Content-Type `application/pkcs7-mime; smime-type=server-generated-key`
* @see [RFC 7030](https://datatracker.ietf.org/doc/html/rfc7030)
* @see [RFC 8551](https://datatracker.ietf.org/doc/html/rfc8551)
* @see [RFC 9148](https://datatracker.ietf.org/doc/html/rfc9148)
*/
#define COAP_FORMAT_PKCS7_MIME_SERVER_GEN (280)
/**
* @brief Content-Type `application/pkcs7-mime; smime-type=certs-only`
* @see [RFC 8551](https://datatracker.ietf.org/doc/html/rfc8551)
* @see [RFC 9148](https://datatracker.ietf.org/doc/html/rfc9148)
*/
#define COAP_FORMAT_PKCS7_MIME_CERTS_ONLY (281)
/**
* @brief Content-Type `application/pkcs8`
* @see [RFC 5958](https://datatracker.ietf.org/doc/html/rfc5958)
* @see [RFC 8551](https://datatracker.ietf.org/doc/html/rfc8551)
* @see [RFC 9148](https://datatracker.ietf.org/doc/html/rfc9148)
*/
#define COAP_FORMAT_PKCS8 (284)
/**
* @brief Content-Type `application/csrattrs`
* @see [RFC 7030](https://datatracker.ietf.org/doc/html/rfc7030)
* @see [RFC 9148](https://datatracker.ietf.org/doc/html/rfc9148)
*/
#define COAP_FORMAT_CSRATTRS (285)
/**
* @brief Content-Type `application/pkcs10`
* @see [RFC 5967](https://datatracker.ietf.org/doc/html/rfc5967)
* @see [RFC 8551](https://datatracker.ietf.org/doc/html/rfc8551)
* @see [RFC 9148](https://datatracker.ietf.org/doc/html/rfc9148)
*/
#define COAP_FORMAT_PKCS10 (286)
/**
* @brief Content-Type `application/pkix-cert`
* @see [RFC 2585](https://datatracker.ietf.org/doc/html/rfc2585)
* @see [RFC 9148](https://datatracker.ietf.org/doc/html/rfc9148)
*/
#define COAP_FORMAT_PKIX_CERT (287)
/**
* @brief Content-Type `application/aif+cbor`
* @see [RFC 9237](https://datatracker.ietf.org/doc/html/rfc9237)
*/
#define COAP_FORMAT_AIF_CBOR (290)
/**
* @brief Content-Type `application/aif+json`
* @see [RFC 9237](https://datatracker.ietf.org/doc/html/rfc9237)
*/
#define COAP_FORMAT_AIF_JSON (291)
#define COAP_FORMAT_SENML_XML (310)
#define COAP_FORMAT_SENSML_XML (311)
/**
* @brief Content-Type `application/senml-etch+json`
* @see [RFC 8790](https://datatracker.ietf.org/doc/html/rfc8790)
*/
#define COAP_FORMAT_SNML_ETCH_JSON (320)
/**
* @brief Content-Type `application/senml-etch+cbor`
* @see [RFC 8790](https://datatracker.ietf.org/doc/html/rfc8790)
*/
#define COAP_FORMAT_SNML_ETCH_CBOR (322)
/**
* @brief Content-Type `application/yang-data+cbor`
* @see [RFC 9254](https://datatracker.ietf.org/doc/html/rfc9254)
*/
#define COAP_FORMAT_YAML_DATA_CBOR (340)
/**
* @brief Content-Type `application/yang-data+cbor; id=name`
* @see [RFC 9254](https://datatracker.ietf.org/doc/html/rfc9254)
*/
#define COAP_FORMAT_YAML_DATA_CBOR_ID_NAME (341)
/**
* @brief Content-Type `application/td+json`
* @see [Web of Things (WoT) Thing Description 1.1](https://www.w3.org/TR/wot-thing-description11/)
*/
#define COAP_FORMAT_TD_JSON (432)
/**
* @brief Content-Type `application/tm+json`
* @see [Web of Things (WoT) Thing Description 1.1](https://www.w3.org/TR/wot-thing-description11/)
*/
#define COAP_FORMAT_TM_JSON (433)
/**
* @brief Content-Type `application/dns-message`
* @see [draft-ietf-core-dns-over-coap](https://datatracker.ietf.org/doc/draft-ietf-core-dns-over-coap/)
*/
#define COAP_FORMAT_DNS_MESSAGE (553)
/**
* @brief Content-Type `application/voucher-cose+cbor`
* @see [draft-ietf-anima-constrained-voucher](https://datatracker.ietf.org/doc/draft-ietf-anima-constrained-voucher/)
* @note Temporary registration until April 12, 2024.
*/
#define COAP_FORMAT_VOUCER_COSE_CBOR (836)
/**
* @brief Content-Type `application/vnd.ocf+cbor`
*/
#define COAP_FORMAT_VND_OCF_CBOR (10000)
/**
* @brief Content-Type `application/oscore`
* @see [RFC 8613](https://datatracker.ietf.org/doc/html/rfc8613)
*/
#define COAP_FORMAT_OSCORE (10001)
/**
* @brief Content-Type `application/javascript`
* @see [RFC 4329](https://datatracker.ietf.org/doc/html/rfc4329)
*/
#define COAP_FORMAT_JAVASCRIPT (10002)
/**
* @brief Content-Type `application/json` with Content Coding `deflate`
* @see [RFC 8259](https://datatracker.ietf.org/doc/html/rfc8259)
* @see [RFC 9110, Section 8.4.1.2](https://datatracker.ietf.org/doc/html/rfc9110)
*/
#define COAP_FORMAT_JSON_DEFLATE (11050)
/**
* @brief Content-Type `application/cbor` with Content Coding `deflate`
* @see [RFC 8949](https://datatracker.ietf.org/doc/html/rfc8949)
* @see [RFC 9110, Section 8.4.1.2](https://datatracker.ietf.org/doc/html/rfc9110)
*/
#define COAP_FORMAT_CBOR_DEFLATE (11060)
/**
* @brief Content-Type `application/vnd.oma.lwm2m+tlv`
* @see [OMA-TS-LightweightM2M-V1_0](https://www.openmobilealliance.org/release/LightweightM2M/V1_0-20170208-A/OMA-TS-LightweightM2M-V1_0-20170208-A.pdf)
*/
#define COAP_FORMAT_VND_OMA_LWM2M_TLV (11542)
/**
* @brief Content-Type `application/vnd.oma.lwm2m+json`
* @see [OMA-TS-LightweightM2M-V1_0](https://www.openmobilealliance.org/release/LightweightM2M/V1_0-20170208-A/OMA-TS-LightweightM2M-V1_0-20170208-A.pdf)
*/
#define COAP_FORMAT_VND_OMA_LWM2M_JSON (11543)
/**
* @brief Content-Type `application/vnd.oma.lwm2m+cbor`
* @see [OMA-TS-LightweightM2M-V1_2](https://www.openmobilealliance.org/release/LightweightM2M/V1_2-20201110-A/HTML-Version/OMA-TS-LightweightM2M_Core-V1_2-20201110-A.html)
*/
#define COAP_FORMAT_VND_OMA_LWM2M_CBOR (11544)
/**
* @brief Content-Type `text/css`
* @see https://datatracker.ietf.org/doc/html/rfc2318
*/
#define COAP_FORMAT_TEXT_CSS (20000)
/**
* @brief Content-Type `image/svg+xml`
* @see [RFC 2318](https://www.w3.org/TR/SVG/mimereg.html)
*/
#define COAP_FORMAT_IMAGE_SVG_XML (30000)
/** @} */
/**
* @name Observe (RFC 7641) constants
* @{
*/
#define COAP_OBS_REGISTER (0)
#define COAP_OBS_DEREGISTER (1)
/** @} */
/**
* @name CoAP message format constants
* @{
*/
#define COAP_TOKEN_LENGTH_MAX (8)
/** @} */
/**
* @name CoAP option constants
* @{
*/
#define COAP_ETAG_LENGTH_MAX (8U) /**< maximum length of the ETag option */
/** @} */
/**
* @defgroup net_coap_conf CoAP compile configurations
* @ingroup net_coap
* @ingroup config
* @{
*/
/**
* @name Timing parameters
*
* These parameters are defined as configurable in [RFC 7252, section 4.8.1]
* (https://tools.ietf.org/html/rfc7252#section-4.8.1).
* @{
*/
/**
* @brief Timeout in milliseconds for a response to a confirmable request
*
* This value is for the response to the *initial* confirmable message. The
* timeout doubles for subsequent retries. To avoid synchronization of resends
* across hosts, the actual timeout is chosen randomly between
* @ref CONFIG_COAP_ACK_TIMEOUT_MS and
* (@ref CONFIG_COAP_ACK_TIMEOUT_MS * @ref CONFIG_COAP_RANDOM_FACTOR_1000 / 1000).
*/
#ifndef CONFIG_COAP_ACK_TIMEOUT_MS
#define CONFIG_COAP_ACK_TIMEOUT_MS (2000UL)
#endif
/**
* @brief Used to calculate upper bound for timeout
*
* This represents the `ACK_RANDOM_FACTOR`
* ([RFC 7252, section 4.2](https://tools.ietf.org/html/rfc7252#section-4.2))
* multiplied by 1000, to avoid floating point arithmetic.
*
* See @ref CONFIG_COAP_ACK_TIMEOUT_MS
*/
#ifndef CONFIG_COAP_RANDOM_FACTOR_1000
#define CONFIG_COAP_RANDOM_FACTOR_1000 (1500)
#endif
/**
* @brief Timeout in milliseconds for a separate (deferred) response
* sent after an empty ACK.
*/
#ifndef CONFIG_COAP_SEPARATE_RESPONSE_TIMEOUT_MS
#define CONFIG_COAP_SEPARATE_RESPONSE_TIMEOUT_MS (10 * MS_PER_SEC)
#endif
/** @brief Maximum number of retransmissions for a confirmable request */
#ifndef CONFIG_COAP_MAX_RETRANSMIT
#define CONFIG_COAP_MAX_RETRANSMIT (4)
#endif
/** @} */
/** @} */
/**
* @name Fixed timing parameters
* @{
*/
#define COAP_NSTART (1)
#define COAP_DEFAULT_LEISURE (5)
/** @} */
/**
* @name Blockwise transfer (RFC7959)
* @{
*/
#define COAP_BLOCKWISE_NUM_OFF (4)
#define COAP_BLOCKWISE_MORE_OFF (3)
#define COAP_BLOCKWISE_SZX_MASK (0x07)
#define COAP_BLOCKWISE_SZX_MAX (7)
/** @} */
/**
* @brief Coap block-wise-transfer size SZX
*/
typedef enum {
COAP_BLOCKSIZE_16 = 0,
COAP_BLOCKSIZE_32,
COAP_BLOCKSIZE_64,
COAP_BLOCKSIZE_128,
COAP_BLOCKSIZE_256,
COAP_BLOCKSIZE_512,
COAP_BLOCKSIZE_1024,
} coap_blksize_t;
#ifdef __cplusplus
}
#endif
#endif /* NET_COAP_H */
/** @} */
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