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coap_block_internal.h
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/*
* coap_block_internal.h -- Structures, Enums & Functions that are not
* exposed to application programming
*
* Copyright (C) 2010-2024 Olaf Bergmann <bergmann@tzi.org>
* Copyright (C) 2021-2024 Jon Shallow <supjps-libcoap@jpshallow.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*
* This file is part of the CoAP library libcoap. Please see README for terms
* of use.
*/
#ifndef COAP_BLOCK_INTERNAL_H_
#define COAP_BLOCK_INTERNAL_H_
#include "coap_internal.h"
#include "coap_pdu_internal.h"
#include "coap_resource.h"
#define STATE_TOKEN_BASE(t) ((t) & 0xffffffffffffULL)
#define STATE_TOKEN_RETRY(t) ((uint64_t)(t) >> 48)
#define STATE_TOKEN_FULL(t,r) (STATE_TOKEN_BASE(t) + ((uint64_t)(r) << 48))
#if COAP_Q_BLOCK_SUPPORT
#define COAP_BLOCK_SET_MASK (COAP_BLOCK_USE_LIBCOAP | \
COAP_BLOCK_SINGLE_BODY | \
COAP_BLOCK_TRY_Q_BLOCK | \
COAP_BLOCK_USE_M_Q_BLOCK | \
COAP_BLOCK_NO_PREEMPTIVE_RTAG | \
COAP_BLOCK_STLESS_FETCH | \
COAP_BLOCK_STLESS_BLOCK2 | \
COAP_BLOCK_NOT_RANDOM_BLOCK1)
#else /* ! COAP_Q_BLOCK_SUPPORT */
#define COAP_BLOCK_SET_MASK (COAP_BLOCK_USE_LIBCOAP | \
COAP_BLOCK_SINGLE_BODY | \
COAP_BLOCK_NO_PREEMPTIVE_RTAG | \
COAP_BLOCK_STLESS_FETCH | \
COAP_BLOCK_STLESS_BLOCK2 | \
COAP_BLOCK_NOT_RANDOM_BLOCK1)
#endif /* ! COAP_Q_BLOCK_SUPPORT */
#define COAP_BLOCK_MAX_SIZE_MASK 0x7000000 /* (svr)Mask to get the max supported block size */
#define COAP_BLOCK_MAX_SIZE_SHIFT 24 /* (svr)Mask shift to get the max supported block size */
#define COAP_BLOCK_MAX_SIZE_GET(a) (((a) & COAP_BLOCK_MAX_SIZE_MASK) >> COAP_BLOCK_MAX_SIZE_SHIFT)
#define COAP_BLOCK_MAX_SIZE_SET(a) (((a) << COAP_BLOCK_MAX_SIZE_SHIFT) & COAP_BLOCK_MAX_SIZE_MASK)
#if COAP_Q_BLOCK_SUPPORT
/* Internal use only and are dropped when setting block_mode */
#define COAP_BLOCK_HAS_Q_BLOCK 0x40000000 /* Set when Q_BLOCK supported */
#define COAP_BLOCK_PROBE_Q_BLOCK 0x80000000 /* Set when Q_BLOCK probing */
#define set_block_mode_probe_q(block_mode) \
do { \
block_mode |= COAP_BLOCK_PROBE_Q_BLOCK; \
block_mode &= ~(COAP_BLOCK_TRY_Q_BLOCK | COAP_BLOCK_HAS_Q_BLOCK); \
} while (0)
#define set_block_mode_has_q(block_mode) \
do { \
block_mode |= COAP_BLOCK_HAS_Q_BLOCK; \
block_mode &= ~(COAP_BLOCK_TRY_Q_BLOCK | COAP_BLOCK_PROBE_Q_BLOCK); \
} while (0)
#define set_block_mode_drop_q(block_mode) \
do { \
block_mode &= ~(COAP_BLOCK_TRY_Q_BLOCK |\
COAP_BLOCK_PROBE_Q_BLOCK |\
COAP_BLOCK_HAS_Q_BLOCK | \
COAP_BLOCK_USE_M_Q_BLOCK); \
} while (0)
#define COAP_SINGLE_BLOCK_OR_Q (COAP_BLOCK_SINGLE_BODY|COAP_BLOCK_HAS_Q_BLOCK)
#else /* ! COAP_Q_BLOCK_SUPPORT */
#define COAP_SINGLE_BLOCK_OR_Q (COAP_BLOCK_SINGLE_BODY)
#endif /* ! COAP_Q_BLOCK_SUPPORT */
typedef enum {
COAP_RECURSE_OK,
COAP_RECURSE_NO
} coap_recurse_t;
struct coap_lg_range {
uint32_t begin;
uint32_t end;
};
#define COAP_RBLOCK_CNT 4
typedef struct coap_rblock_t {
uint32_t used;
uint32_t retry;
#if COAP_Q_BLOCK_SUPPORT
uint32_t processing_payload_set;
uint32_t latest_payload_set;
#endif /* COAP_Q_BLOCK_SUPPORT */
struct coap_lg_range range[COAP_RBLOCK_CNT];
coap_tick_t last_seen;
} coap_rblock_t;
typedef struct coap_l_block1_t {
coap_binary_t *app_token;
uint64_t state_token;
size_t bert_size;
uint32_t count;
} coap_l_block1_t;
typedef struct coap_l_block2_t {
coap_resource_t *resource;
coap_string_t *query;
uint64_t etag;
coap_pdu_code_t request_method;
uint8_t rtag_set;
uint8_t rtag_length;
uint8_t rtag[8];
coap_time_t maxage_expire;
} coap_l_block2_t;
struct coap_lg_xmit_t {
struct coap_lg_xmit_t *next;
uint8_t blk_size;
uint16_t option;
int last_block;
const uint8_t *data;
size_t length;
size_t offset;
union {
coap_l_block1_t b1;
coap_l_block2_t b2;
} b;
coap_lg_crcv_t *lg_crcv;
coap_pdu_t pdu;
coap_tick_t last_payload;
coap_tick_t last_sent;
coap_tick_t last_all_sent;
coap_tick_t last_obs;
#if COAP_Q_BLOCK_SUPPORT
coap_tick_t non_timeout_random_ticks;
#endif /* COAP_Q_BLOCK_SUPPORT */
coap_release_large_data_t release_func;
void *app_ptr;
};
#if COAP_CLIENT_SUPPORT
struct coap_lg_crcv_t {
struct coap_lg_crcv_t *next;
uint8_t observe[3];
uint8_t observe_length;
uint8_t observe_set;
uint8_t szx;
uint8_t etag_set;
uint8_t etag_length;
uint8_t etag[8];
uint16_t content_format;
uint8_t last_type;
uint8_t initial;
uint16_t block_option;
uint16_t retry_counter;
size_t total_len;
coap_binary_t *body_data;
coap_binary_t *app_token;
coap_bin_const_t **obs_token;
size_t obs_token_cnt;
uint16_t o_block_option;
uint8_t o_blk_size;
uint64_t state_token;
coap_pdu_t pdu;
coap_rblock_t rec_blocks;
coap_tick_t last_used;
};
#endif /* COAP_CLIENT_SUPPORT */
#if COAP_SERVER_SUPPORT
struct coap_lg_srcv_t {
struct coap_lg_srcv_t *next;
uint8_t observe[3];
uint8_t observe_length;
uint8_t observe_set;
uint8_t no_more_seen;
uint8_t rtag_set;
uint8_t rtag_length;
uint8_t rtag[8];
uint16_t content_format;
uint8_t last_type;
uint8_t szx;
size_t total_len;
coap_binary_t *body_data;
coap_resource_t *resource;
coap_str_const_t *uri_path;
coap_rblock_t rec_blocks;
coap_bin_const_t *last_token;
coap_mid_t last_mid;
coap_tick_t last_used;
uint16_t block_option;
};
#endif /* COAP_SERVER_SUPPORT */
#if COAP_Q_BLOCK_SUPPORT
typedef enum {
COAP_SEND_SKIP_PDU,
COAP_SEND_INC_PDU
} coap_send_pdu_t;
#endif /* COAP_Q_BLOCK_SUPPORT */
#if COAP_CLIENT_SUPPORT
coap_lg_crcv_t *coap_block_new_lg_crcv(coap_session_t *session,
coap_pdu_t *pdu,
coap_lg_xmit_t *lg_xmit);
void coap_block_delete_lg_crcv(coap_session_t *session,
coap_lg_crcv_t *lg_crcv);
int coap_block_check_lg_crcv_timeouts(coap_session_t *session,
coap_tick_t now,
coap_tick_t *tim_rem);
#if COAP_Q_BLOCK_SUPPORT
coap_mid_t coap_send_q_block1(coap_session_t *session,
coap_block_b_t block,
coap_pdu_t *request,
coap_send_pdu_t send_request);
coap_tick_t coap_block_check_q_block1_xmit(coap_session_t *session,
coap_tick_t now);
coap_mid_t coap_block_test_q_block(coap_session_t *session, coap_pdu_t *actual);
#endif /* COAP_Q_BLOCK_SUPPORT */
#endif /* COAP_CLIENT_SUPPORT */
#if COAP_Q_BLOCK_SUPPORT
coap_mid_t coap_send_q_blocks(coap_session_t *session,
coap_lg_xmit_t *lg_xmit,
coap_block_b_t block,
coap_pdu_t *pdu,
coap_send_pdu_t send_pdu);
#endif /* COAP_Q_BLOCK_SUPPORT */
#if COAP_SERVER_SUPPORT
void coap_block_delete_lg_srcv(coap_session_t *session,
coap_lg_srcv_t *lg_srcv);
int coap_block_check_lg_srcv_timeouts(coap_session_t *session,
coap_tick_t now,
coap_tick_t *tim_rem);
#if COAP_Q_BLOCK_SUPPORT
coap_tick_t coap_block_check_q_block2_xmit(coap_session_t *session,
coap_tick_t now);
coap_mid_t coap_send_q_block2(coap_session_t *session,
coap_resource_t *resource,
const coap_string_t *query,
coap_pdu_code_t request_method,
coap_block_b_t block,
coap_pdu_t *response,
coap_send_pdu_t send_response);
#endif /* COAP_Q_BLOCK_SUPPORT */
int coap_handle_request_send_block(coap_session_t *session,
coap_pdu_t *pdu,
coap_pdu_t *response,
coap_resource_t *resource,
coap_string_t *query);
int coap_handle_request_put_block(coap_context_t *context,
coap_session_t *session,
coap_pdu_t *pdu,
coap_pdu_t *response,
coap_resource_t *resource,
coap_string_t *uri_path,
coap_opt_t *observe,
int *added_block,
coap_lg_srcv_t **free_lg_srcv);
coap_lg_xmit_t *coap_find_lg_xmit_response(const coap_session_t *session,
const coap_pdu_t *request,
const coap_resource_t *resource,
const coap_string_t *query);
int coap_add_data_large_response_lkd(coap_resource_t *resource,
coap_session_t *session,
const coap_pdu_t *request,
coap_pdu_t *response,
const coap_string_t *query,
uint16_t media_type,
int maxage,
uint64_t etag,
size_t length,
const uint8_t *data,
coap_release_large_data_t release_func,
void *app_ptr);
#endif /* COAP_SERVER_SUPPORT */
#if COAP_CLIENT_SUPPORT
int coap_handle_response_send_block(coap_session_t *session, coap_pdu_t *sent,
coap_pdu_t *rcvd);
int coap_handle_response_get_block(coap_context_t *context,
coap_session_t *session,
coap_pdu_t *sent,
coap_pdu_t *rcvd,
coap_recurse_t recursive);
coap_mid_t coap_retransmit_oscore_pdu(coap_session_t *session,
coap_pdu_t *pdu,
coap_opt_t *echo);
#endif /* COAP_CLIENT_SUPPORT */
void coap_block_delete_lg_xmit(coap_session_t *session,
coap_lg_xmit_t *lg_xmit);
int coap_block_check_lg_xmit_timeouts(coap_session_t *session,
coap_tick_t now,
coap_tick_t *tim_rem);
#if COAP_Q_BLOCK_SUPPORT
int coap_block_drop_resp_q_block_xmit(coap_session_t *session,
coap_lg_xmit_t *lg_xmit);
int coap_block_drop_resp_q_block2_crcv(coap_session_t *session,
coap_lg_crcv_t *lg_crcv,
coap_pdu_t *sent);
#endif /* COAP_Q_BLOCK_SUPPORT */
void coap_check_code_lg_xmit(const coap_session_t *session,
const coap_pdu_t *request,
coap_pdu_t *response,
const coap_resource_t *resource,
const coap_string_t *query);
void coap_context_set_block_mode_lkd(coap_context_t *context,
uint32_t block_mode);
int coap_context_set_max_block_size_lkd(coap_context_t *context, size_t max_block_size);
#if COAP_CLIENT_SUPPORT
int coap_add_data_large_request_lkd(coap_session_t *session,
coap_pdu_t *pdu,
size_t length,
const uint8_t *data,
coap_release_large_data_t release_func,
void *app_ptr);
void coap_check_update_token(coap_session_t *session, coap_pdu_t *pdu);
#else /* ! COAP_CLIENT_SUPPORT */
#define coap_check_update_token(a,b)
#endif /* ! COAP_CLIENT_SUPPORT */
#endif /* COAP_BLOCK_INTERNAL_H_ */
coap_internal.h
Pulls together all the internal only header files.
coap_opt_t
uint8_t coap_opt_t
Use byte-oriented access methods here because sliding a complex struct coap_opt_t over the data buffe...
Definition coap_option.h:26
coap_pdu_internal.h
CoAP PDU internal information.
coap_resource.h
Generic resource handling.
coap_add_data_large_response_lkd
int coap_add_data_large_response_lkd(coap_resource_t *resource, coap_session_t *session, const coap_pdu_t *request, coap_pdu_t *response, const coap_string_t *query, uint16_t media_type, int maxage, uint64_t etag, size_t length, const uint8_t *data, coap_release_large_data_t release_func, void *app_ptr)
Associates given data with the response pdu that is passed as fourth parameter.
coap_context_set_max_block_size_lkd
int coap_context_set_max_block_size_lkd(coap_context_t *context, size_t max_block_size)
Set the context level maximum block size that the server supports when sending or receiving packets w...
Definition coap_block.c:408
coap_block_delete_lg_srcv
void coap_block_delete_lg_srcv(coap_session_t *session, coap_lg_srcv_t *lg_srcv)
coap_context_set_block_mode_lkd
void coap_context_set_block_mode_lkd(coap_context_t *context, uint32_t block_mode)
Set the context level CoAP block handling bits for handling RFC7959.
Definition coap_block.c:383
coap_block_check_lg_crcv_timeouts
int coap_block_check_lg_crcv_timeouts(coap_session_t *session, coap_tick_t now, coap_tick_t *tim_rem)
coap_block_check_lg_srcv_timeouts
int coap_block_check_lg_srcv_timeouts(coap_session_t *session, coap_tick_t now, coap_tick_t *tim_rem)
COAP_RBLOCK_CNT
#define COAP_RBLOCK_CNT
Definition coap_block_internal.h:100
coap_block_delete_lg_crcv
void coap_block_delete_lg_crcv(coap_session_t *session, coap_lg_crcv_t *lg_crcv)
coap_handle_response_get_block
int coap_handle_response_get_block(coap_context_t *context, coap_session_t *session, coap_pdu_t *sent, coap_pdu_t *rcvd, coap_recurse_t recursive)
coap_check_code_lg_xmit
void coap_check_code_lg_xmit(const coap_session_t *session, const coap_pdu_t *request, coap_pdu_t *response, const coap_resource_t *resource, const coap_string_t *query)
The function checks that the code in a newly formed lg_xmit created by coap_add_data_large_response_l...
coap_handle_response_send_block
int coap_handle_response_send_block(coap_session_t *session, coap_pdu_t *sent, coap_pdu_t *rcvd)
coap_retransmit_oscore_pdu
coap_mid_t coap_retransmit_oscore_pdu(coap_session_t *session, coap_pdu_t *pdu, coap_opt_t *echo)
coap_add_data_large_request_lkd
int coap_add_data_large_request_lkd(coap_session_t *session, coap_pdu_t *pdu, size_t length, const uint8_t *data, coap_release_large_data_t release_func, void *app_ptr)
Associates given data with the pdu that is passed as second parameter.
coap_check_update_token
void coap_check_update_token(coap_session_t *session, coap_pdu_t *pdu)
The function checks if the token needs to be updated before PDU is presented to the application (only...
coap_recurse_t
coap_recurse_t
Definition coap_block_internal.h:90
coap_block_delete_lg_xmit
void coap_block_delete_lg_xmit(coap_session_t *session, coap_lg_xmit_t *lg_xmit)
Definition coap_block.c:2347
coap_handle_request_put_block
int coap_handle_request_put_block(coap_context_t *context, coap_session_t *session, coap_pdu_t *pdu, coap_pdu_t *response, coap_resource_t *resource, coap_string_t *uri_path, coap_opt_t *observe, int *added_block, coap_lg_srcv_t **free_lg_srcv)
coap_find_lg_xmit_response
coap_lg_xmit_t * coap_find_lg_xmit_response(const coap_session_t *session, const coap_pdu_t *request, const coap_resource_t *resource, const coap_string_t *query)
coap_block_new_lg_crcv
coap_lg_crcv_t * coap_block_new_lg_crcv(coap_session_t *session, coap_pdu_t *pdu, coap_lg_xmit_t *lg_xmit)
coap_handle_request_send_block
int coap_handle_request_send_block(coap_session_t *session, coap_pdu_t *pdu, coap_pdu_t *response, coap_resource_t *resource, coap_string_t *query)
coap_block_check_lg_xmit_timeouts
int coap_block_check_lg_xmit_timeouts(coap_session_t *session, coap_tick_t now, coap_tick_t *tim_rem)
Definition coap_block.c:1274
COAP_RECURSE_OK
@ COAP_RECURSE_OK
Definition coap_block_internal.h:91
COAP_RECURSE_NO
@ COAP_RECURSE_NO
Definition coap_block_internal.h:92
coap_release_large_data_t
void(* coap_release_large_data_t)(coap_session_t *session, void *app_ptr)
Callback handler for de-allocating the data based on app_ptr provided to coap_add_data_large_*() func...
Definition coap_block.h:286
coap_time_t
time_t coap_time_t
CoAP time in seconds since epoch.
Definition coap_time.h:148
coap_tick_t
uint64_t coap_tick_t
This data type represents internal timer ticks with COAP_TICKS_PER_SECOND resolution.
Definition coap_time.h:143
coap_mid_t
int coap_mid_t
coap_mid_t is used to store the CoAP Message ID of a CoAP PDU.
Definition coap_pdu.h:263
coap_pdu_code_t
coap_pdu_code_t
Set of codes available for a PDU.
Definition coap_pdu.h:326
coap_bin_const_t
CoAP binary data definition with const data.
Definition coap_str.h:64
coap_binary_t
CoAP binary data definition.
Definition coap_str.h:56
coap_block_b_t
Structure of Block options with BERT support.
Definition coap_block.h:51
coap_context_t
The CoAP stack's global state is stored in a coap_context_t object.
Definition coap_net_internal.h:50
coap_l_block1_t
Structure to keep track of block1 specific information (Requests).
Definition coap_block_internal.h:119
coap_l_block1_t::state_token
uint64_t state_token
state token
Definition coap_block_internal.h:121
coap_l_block1_t::bert_size
size_t bert_size
size of last BERT block
Definition coap_block_internal.h:122
coap_l_block1_t::count
uint32_t count
the number of packets sent for payload
Definition coap_block_internal.h:123
coap_l_block1_t::app_token
coap_binary_t * app_token
original PDU token
Definition coap_block_internal.h:120
coap_l_block2_t
Structure to keep track of block2 specific information (Responses).
Definition coap_block_internal.h:130
coap_l_block2_t::request_method
coap_pdu_code_t request_method
Method used to request this data.
Definition coap_block_internal.h:134
coap_l_block2_t::rtag_length
uint8_t rtag_length
RTag length.
Definition coap_block_internal.h:136
coap_l_block2_t::query
coap_string_t * query
Associated query for the resource.
Definition coap_block_internal.h:132
coap_l_block2_t::etag
uint64_t etag
ETag value.
Definition coap_block_internal.h:133
coap_l_block2_t::resource
coap_resource_t * resource
associated resource
Definition coap_block_internal.h:131
coap_l_block2_t::maxage_expire
coap_time_t maxage_expire
When this entry expires.
Definition coap_block_internal.h:138
coap_l_block2_t::rtag_set
uint8_t rtag_set
Set if RTag is in receive PDU.
Definition coap_block_internal.h:135
coap_l_block2_t::rtag
uint8_t rtag[8]
RTag for block checking.
Definition coap_block_internal.h:137
coap_lg_crcv_t
Structure to hold large body (many blocks) client receive information.
Definition coap_block_internal.h:174
coap_lg_crcv_t::block_option
uint16_t block_option
Block option in use.
Definition coap_block_internal.h:186
coap_lg_crcv_t::etag
uint8_t etag[8]
ETag for block checking.
Definition coap_block_internal.h:182
coap_lg_crcv_t::etag_length
uint8_t etag_length
ETag length.
Definition coap_block_internal.h:181
coap_lg_crcv_t::last_type
uint8_t last_type
Last request type (CON/NON).
Definition coap_block_internal.h:184
coap_lg_crcv_t::observe_length
uint8_t observe_length
Length of observe data.
Definition coap_block_internal.h:177
coap_lg_crcv_t::observe
uint8_t observe[3]
Observe data (if observe_set) (only 24 bits).
Definition coap_block_internal.h:176
coap_lg_crcv_t::etag_set
uint8_t etag_set
Set if ETag is in receive PDU.
Definition coap_block_internal.h:180
coap_lg_crcv_t::rec_blocks
coap_rblock_t rec_blocks
Definition coap_block_internal.h:198
coap_lg_crcv_t::next
struct coap_lg_crcv_t * next
Definition coap_block_internal.h:175
coap_lg_crcv_t::initial
uint8_t initial
If set, has not been used yet.
Definition coap_block_internal.h:185
coap_lg_crcv_t::szx
uint8_t szx
size of individual blocks
Definition coap_block_internal.h:179
coap_lg_crcv_t::o_block_option
uint16_t o_block_option
Block CoAP option used when initiating Observe.
Definition coap_block_internal.h:194
coap_lg_crcv_t::content_format
uint16_t content_format
Content format for the set of blocks.
Definition coap_block_internal.h:183
coap_lg_crcv_t::pdu
coap_pdu_t pdu
skeletal PDU
Definition coap_block_internal.h:197
coap_lg_crcv_t::o_blk_size
uint8_t o_blk_size
Block size used when initiating Observe.
Definition coap_block_internal.h:195
coap_lg_crcv_t::last_used
coap_tick_t last_used
< list of received blocks
Definition coap_block_internal.h:199
coap_lg_crcv_t::obs_token
coap_bin_const_t ** obs_token
Tokens used in setting up Observe (to handle large FETCH).
Definition coap_block_internal.h:191
coap_lg_crcv_t::state_token
uint64_t state_token
state token
Definition coap_block_internal.h:196
coap_lg_crcv_t::app_token
coap_binary_t * app_token
app requesting PDU token
Definition coap_block_internal.h:190
coap_lg_crcv_t::retry_counter
uint16_t retry_counter
Retry counter (part of state token).
Definition coap_block_internal.h:187
coap_lg_crcv_t::body_data
coap_binary_t * body_data
Used for re-assembling entire body.
Definition coap_block_internal.h:189
coap_lg_crcv_t::obs_token_cnt
size_t obs_token_cnt
number of tokens used to set up Observe
Definition coap_block_internal.h:193
coap_lg_crcv_t::observe_set
uint8_t observe_set
Set if this is an observe receive PDU.
Definition coap_block_internal.h:178
coap_lg_crcv_t::total_len
size_t total_len
Length as indicated by SIZE2 option.
Definition coap_block_internal.h:188
coap_lg_range
Definition coap_block_internal.h:95
coap_lg_range::end
uint32_t end
Definition coap_block_internal.h:97
coap_lg_range::begin
uint32_t begin
Definition coap_block_internal.h:96
coap_lg_srcv_t
Structure to hold large body (many blocks) server receive information.
Definition coap_block_internal.h:207
coap_lg_srcv_t::rtag
uint8_t rtag[8]
RTag for block checking.
Definition coap_block_internal.h:215
coap_lg_srcv_t::last_mid
coap_mid_t last_mid
Last received mid for this set of packets.
Definition coap_block_internal.h:225
coap_lg_srcv_t::rtag_set
uint8_t rtag_set
Set if RTag is in receive PDU.
Definition coap_block_internal.h:213
coap_lg_srcv_t::block_option
uint16_t block_option
Block option in use.
Definition coap_block_internal.h:227
coap_lg_srcv_t::total_len
size_t total_len
Length as indicated by SIZE1 option.
Definition coap_block_internal.h:219
coap_lg_srcv_t::next
struct coap_lg_srcv_t * next
Definition coap_block_internal.h:208
coap_lg_srcv_t::observe_length
uint8_t observe_length
Length of observe data.
Definition coap_block_internal.h:210
coap_lg_srcv_t::rec_blocks
coap_rblock_t rec_blocks
set to uri_path if unknown resource
Definition coap_block_internal.h:223
coap_lg_srcv_t::no_more_seen
uint8_t no_more_seen
Set if block with more not set seen.
Definition coap_block_internal.h:212
coap_lg_srcv_t::body_data
coap_binary_t * body_data
Used for re-assembling entire body.
Definition coap_block_internal.h:220
coap_lg_srcv_t::resource
coap_resource_t * resource
associated resource
Definition coap_block_internal.h:221
coap_lg_srcv_t::observe_set
uint8_t observe_set
Set if this is an observe receive PDU.
Definition coap_block_internal.h:211
coap_lg_srcv_t::rtag_length
uint8_t rtag_length
RTag length.
Definition coap_block_internal.h:214
coap_lg_srcv_t::last_type
uint8_t last_type
Last request type (CON/NON).
Definition coap_block_internal.h:217
coap_lg_srcv_t::szx
uint8_t szx
size of individual blocks
Definition coap_block_internal.h:218
coap_lg_srcv_t::last_used
coap_tick_t last_used
Last time data sent or 0.
Definition coap_block_internal.h:226
coap_lg_srcv_t::observe
uint8_t observe[3]
Observe data (if set) (only 24 bits).
Definition coap_block_internal.h:209
coap_lg_srcv_t::content_format
uint16_t content_format
Content format for the set of blocks.
Definition coap_block_internal.h:216
coap_lg_srcv_t::last_token
coap_bin_const_t * last_token
< list of received blocks
Definition coap_block_internal.h:224
coap_lg_srcv_t::uri_path
coap_str_const_t * uri_path
Definition coap_block_internal.h:222
coap_lg_xmit_t
Structure to hold large body (many blocks) transmission information.
Definition coap_block_internal.h:144
coap_lg_xmit_t::last_all_sent
coap_tick_t last_all_sent
Last time all data sent or 0.
Definition coap_block_internal.h:161
coap_lg_xmit_t::release_func
coap_release_large_data_t release_func
large data de-alloc function
Definition coap_block_internal.h:166
coap_lg_xmit_t::blk_size
uint8_t blk_size
large block transmission size
Definition coap_block_internal.h:146
coap_lg_xmit_t::last_sent
coap_tick_t last_sent
Last time any data sent.
Definition coap_block_internal.h:160
coap_lg_xmit_t::b
union coap_lg_xmit_t::@262215251333011075135347127157000304024016131171 b
coap_lg_xmit_t::lg_crcv
coap_lg_crcv_t * lg_crcv
The lg_crcv associated with this blocked xmit.
Definition coap_block_internal.h:157
coap_lg_xmit_t::data
const uint8_t * data
large data ptr
Definition coap_block_internal.h:150
coap_lg_xmit_t::last_block
int last_block
last acknowledged block number Block1 last transmitted Q-Block2
Definition coap_block_internal.h:148
coap_lg_xmit_t::last_payload
coap_tick_t last_payload
Last time MAX_PAYLOAD was sent or 0.
Definition coap_block_internal.h:159
coap_lg_xmit_t::offset
size_t offset
large data next offset to transmit
Definition coap_block_internal.h:152
coap_lg_xmit_t::pdu
coap_pdu_t pdu
skeletal PDU
Definition coap_block_internal.h:158
coap_lg_xmit_t::length
size_t length
large data length
Definition coap_block_internal.h:151
coap_lg_xmit_t::b1
coap_l_block1_t b1
Definition coap_block_internal.h:154
coap_lg_xmit_t::b2
coap_l_block2_t b2
Definition coap_block_internal.h:155
coap_lg_xmit_t::option
uint16_t option
large block transmisson CoAP option
Definition coap_block_internal.h:147
coap_lg_xmit_t::next
struct coap_lg_xmit_t * next
Definition coap_block_internal.h:145
coap_lg_xmit_t::app_ptr
void * app_ptr
applicaton provided ptr for de-alloc function
Definition coap_block_internal.h:167
coap_lg_xmit_t::last_obs
coap_tick_t last_obs
Last time used (Observe tracking) or 0.
Definition coap_block_internal.h:162
coap_pdu_t
structure for CoAP PDUs
Definition coap_pdu_internal.h:135
coap_rblock_t
Structure to keep track of received blocks.
Definition coap_block_internal.h:104
coap_rblock_t::retry
uint32_t retry
Definition coap_block_internal.h:106
coap_rblock_t::used
uint32_t used
Definition coap_block_internal.h:105
coap_rblock_t::last_seen
coap_tick_t last_seen
Definition coap_block_internal.h:112
coap_rblock_t::range
struct coap_lg_range range[COAP_RBLOCK_CNT]
Definition coap_block_internal.h:111
coap_resource_t
Abstraction of resource that can be attached to coap_context_t.
Definition coap_resource_internal.h:53
coap_session_t
Abstraction of virtual session that can be attached to coap_context_t (client) or coap_endpoint_t (se...
Definition coap_session_internal.h:68
coap_str_const_t
CoAP string data definition with const data.
Definition coap_str.h:46
coap_string_t
CoAP string data definition.
Definition coap_str.h:38