| /* |
| * Copyright (c) 2017 Linaro Limited |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #ifndef LWM2M_ENGINE_H |
| #define LWM2M_ENGINE_H |
| |
| #include "lwm2m_object.h" |
| |
| #define LWM2M_PROTOCOL_VERSION "1.0" |
| |
| /* LWM2M / CoAP Content-Formats */ |
| #define LWM2M_FORMAT_PLAIN_TEXT 0 |
| #define LWM2M_FORMAT_APP_LINK_FORMAT 40 |
| #define LWM2M_FORMAT_APP_OCTET_STREAM 42 |
| #define LWM2M_FORMAT_APP_EXI 47 |
| #define LWM2M_FORMAT_APP_JSON 50 |
| #define LWM2M_FORMAT_OMA_PLAIN_TEXT 1541 |
| #define LWM2M_FORMAT_OMA_OLD_TLV 1542 |
| #define LWM2M_FORMAT_OMA_OLD_JSON 1543 |
| #define LWM2M_FORMAT_OMA_OLD_OPAQUE 1544 |
| #define LWM2M_FORMAT_OMA_TLV 11542 |
| #define LWM2M_FORMAT_OMA_JSON 11543 |
| |
| |
| #define ZOAP_RESPONSE_CODE_CLASS(x) (x >> 5) |
| #define ZOAP_RESPONSE_CODE_DETAIL(x) (x & 0x1F) |
| |
| /* TODO: */ |
| #define NOTIFY_OBSERVER(o, i, r) lwm2m_notify_observer(o, i, r) |
| #define NOTIFY_OBSERVER_PATH(path) lwm2m_notify_observer_path(path) |
| |
| /* Use this value to skip token generation */ |
| #define LWM2M_MSG_TOKEN_LEN_SKIP 0xFF |
| |
| struct lwm2m_message; |
| |
| /* Establish a message timeout callback */ |
| typedef void (*lwm2m_message_timeout_cb_t)(struct lwm2m_message *msg); |
| |
| /* Internal LwM2M message structure to track in-flight messages. */ |
| struct lwm2m_message { |
| /** LwM2M context related to this message */ |
| struct lwm2m_ctx *ctx; |
| |
| /** ZoAP packet data related to this message */ |
| struct zoap_packet zpkt; |
| |
| /** Message transmission handling for TYPE_CON */ |
| struct zoap_pending *pending; |
| struct zoap_reply *reply; |
| |
| /** Message configuration */ |
| const u8_t *token; |
| zoap_reply_t reply_cb; |
| lwm2m_message_timeout_cb_t message_timeout_cb; |
| u16_t mid; |
| u8_t type; |
| u8_t code; |
| u8_t tkl; |
| |
| /** Counter for message re-send / abort handling */ |
| u8_t send_attempts; |
| }; |
| |
| /* Establish a request handler callback type */ |
| typedef int (*udp_request_handler_cb_t)(struct zoap_packet *request, |
| struct lwm2m_message *msg); |
| |
| char *lwm2m_sprint_ip_addr(const struct sockaddr *addr); |
| |
| int lwm2m_notify_observer(u16_t obj_id, u16_t obj_inst_id, u16_t res_id); |
| int lwm2m_notify_observer_path(struct lwm2m_obj_path *path); |
| |
| void lwm2m_register_obj(struct lwm2m_engine_obj *obj); |
| void lwm2m_unregister_obj(struct lwm2m_engine_obj *obj); |
| struct lwm2m_engine_obj_field * |
| lwm2m_get_engine_obj_field(struct lwm2m_engine_obj *obj, int res_id); |
| int lwm2m_create_obj_inst(u16_t obj_id, u16_t obj_inst_id, |
| struct lwm2m_engine_obj_inst **obj_inst); |
| int lwm2m_delete_obj_inst(u16_t obj_id, u16_t obj_inst_id); |
| int lwm2m_get_or_create_engine_obj(struct lwm2m_engine_context *context, |
| struct lwm2m_engine_obj_inst **obj_inst, |
| u8_t *created); |
| |
| /* LwM2M message functions */ |
| struct lwm2m_message *find_msg_from_pending(struct zoap_pending *pending); |
| struct lwm2m_message *lwm2m_get_message(struct lwm2m_ctx *client_ctx); |
| void lwm2m_release_message(struct lwm2m_message *msg); |
| int lwm2m_init_message(struct lwm2m_message *msg); |
| int lwm2m_send_message(struct lwm2m_message *msg); |
| |
| u16_t lwm2m_get_rd_data(u8_t *client_data, u16_t size); |
| |
| int lwm2m_write_handler(struct lwm2m_engine_obj_inst *obj_inst, |
| struct lwm2m_engine_res_inst *res, |
| struct lwm2m_engine_obj_field *obj_field, |
| struct lwm2m_engine_context *context); |
| |
| void lwm2m_udp_receive(struct lwm2m_ctx *client_ctx, struct net_pkt *pkt, |
| bool handle_separate_response, |
| udp_request_handler_cb_t udp_request_handler); |
| |
| #endif /* LWM2M_ENGINE_H */ |