1 /*
2 * Copyright (c) 2022 Nordic Semiconductor ASA
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 #define LOG_MODULE_NAME net_lwm2m_obj_portfolio
8 #define LOG_LEVEL CONFIG_LWM2M_LOG_LEVEL
9
10 #include <zephyr/logging/log.h>
11 LOG_MODULE_REGISTER(LOG_MODULE_NAME);
12
13 #include <stdint.h>
14 #include <zephyr/init.h>
15
16 #include "lwm2m_object.h"
17 #include "lwm2m_engine.h"
18 #include "lwm2m_resource_ids.h"
19
20 #define PORTFOLIO_VERSION_MAJOR 1
21 #define PORTFOLIO_VERSION_MINOR 0
22
23 #define PORTFOLIO_IDENTITY_ID 0
24 #define PORTFOLIO_GET_AUTH_DATA_ID 1
25 #define PORTFOLIO_AUTH_DATA_ID 2
26 #define PORTFOLIO_AUTH_STATUS_ID 3
27
28 #define PORTFOLIO_MAX_ID 4
29
30 /* Identity max based on LwM2M v1.1 conformance test requirements */
31 #define PORTFOLIO_IDENTITY_MAX 4
32 #define PORTFOLIO_AUTH_DATA_MAX 4
33 /* Support 2 multi instance object */
34 #define MAX_INSTANCE_COUNT 2
35
36 /* Default Identity buffer length 40 */
37 #define DEFAULT_IDENTITY_BUFFER_LENGTH 40
38
39 /*
40 * Calculate resource instances as follows:
41 * start with PORTFOLIO_MAX_ID
42 * subtract MULTI resources and execute because their counts include 0 resource (3)
43 * add PORTFOLIO_IDENTITY_ID resource instances
44 * add PORTFOLIO_AUTH_DATA_ID resource instances
45 */
46 #define RESOURCE_INSTANCE_COUNT (PORTFOLIO_MAX_ID - 3 + \
47 PORTFOLIO_IDENTITY_MAX + \
48 PORTFOLIO_AUTH_DATA_MAX)
49
50 static struct lwm2m_engine_obj portfolio;
51 static struct lwm2m_engine_obj_field fields[] = {
52 OBJ_FIELD_DATA(PORTFOLIO_IDENTITY_ID, RW, STRING), /* Mandatory, multi-instance */
53 OBJ_FIELD_EXECUTE(PORTFOLIO_GET_AUTH_DATA_ID), /* Optional, single-instance */
54 OBJ_FIELD_DATA(PORTFOLIO_AUTH_DATA_ID, R_OPT, OPAQUE), /* Optional, multi-instance */
55 OBJ_FIELD_DATA(PORTFOLIO_AUTH_STATUS_ID, R_OPT, U8) /* Optional, single-instance*/
56 };
57
58
59 static struct lwm2m_engine_obj_inst inst[MAX_INSTANCE_COUNT];
60 static struct lwm2m_engine_res res[MAX_INSTANCE_COUNT][PORTFOLIO_MAX_ID];
61 static struct lwm2m_engine_res_inst res_inst[MAX_INSTANCE_COUNT][RESOURCE_INSTANCE_COUNT];
62 static char identity[MAX_INSTANCE_COUNT][PORTFOLIO_IDENTITY_MAX][DEFAULT_IDENTITY_BUFFER_LENGTH];
63
portfolio_create(uint16_t obj_inst_id)64 static struct lwm2m_engine_obj_inst *portfolio_create(uint16_t obj_inst_id)
65 {
66 int index, avail = -1, i = 0, j = 0;
67
68 /* Check that there is no other instance with this ID */
69 for (index = 0; index < ARRAY_SIZE(inst); index++) {
70 if (inst[index].obj && inst[index].obj_inst_id == obj_inst_id) {
71 LOG_ERR("Can not create instance - "
72 "already existing: %u",
73 obj_inst_id);
74 return NULL;
75 }
76
77 /* Save first available slot index */
78 if (avail < 0 && !inst[index].obj) {
79 avail = index;
80 }
81 }
82
83 if (avail < 0) {
84 LOG_ERR("Can not create instance - no more room: %u", obj_inst_id);
85 return NULL;
86 }
87
88 (void)memset(res[avail], 0, sizeof(res[avail][0]) * ARRAY_SIZE(res[avail]));
89 (void)memset(identity[avail], 0, DEFAULT_IDENTITY_BUFFER_LENGTH);
90
91 init_res_instance(res_inst[avail], ARRAY_SIZE(res_inst[avail]));
92
93 /* initialize instance resource data */
94 INIT_OBJ_RES_MULTI_DATA_LEN(PORTFOLIO_IDENTITY_ID, res[avail], i, res_inst[avail], j,
95 PORTFOLIO_IDENTITY_MAX, false, identity[avail],
96 DEFAULT_IDENTITY_BUFFER_LENGTH, 0);
97 INIT_OBJ_RES_EXECUTE(PORTFOLIO_GET_AUTH_DATA_ID, res[avail], i, NULL);
98 INIT_OBJ_RES_MULTI_OPTDATA(PORTFOLIO_AUTH_DATA_ID, res[avail], i, res_inst[avail], j,
99 PORTFOLIO_AUTH_DATA_MAX, false);
100 INIT_OBJ_RES_OPTDATA(PORTFOLIO_AUTH_STATUS_ID, res[avail], i, res_inst[avail], j);
101
102 inst[avail].resources = res[avail];
103 inst[avail].resource_count = i;
104
105 LOG_DBG("Create LwM2M Portfolio instance: %d", obj_inst_id);
106
107 return &inst[avail];
108 }
109
lwm2m_portfolio_init(void)110 static int lwm2m_portfolio_init(void)
111 {
112 portfolio.obj_id = LWM2M_OBJECT_PORTFOLIO_ID;
113 portfolio.version_major = PORTFOLIO_VERSION_MAJOR;
114 portfolio.version_minor = PORTFOLIO_VERSION_MINOR;
115 portfolio.is_core = false;
116 portfolio.fields = fields;
117 portfolio.field_count = ARRAY_SIZE(fields);
118 portfolio.max_instance_count = MAX_INSTANCE_COUNT;
119 portfolio.create_cb = portfolio_create;
120 lwm2m_register_obj(&portfolio);
121
122 return 0;
123 }
124
125 LWM2M_OBJ_INIT(lwm2m_portfolio_init);
126
