1 /*
2  * Copyright (c) 2022 FTP Technologies
3  *
4  * SPDX-License-Identifier: Apache-2.0
5  */
6 
7 /*
8  * Source material for uCIFI LPWAN object (3412):
9  * https://raw.githubusercontent.com/OpenMobileAlliance/lwm2m-registry/prod/3412.xml
10  */
11 
12 #define LOG_MODULE_NAME net_ucifi_lpwan
13 #define LOG_LEVEL	CONFIG_LWM2M_LOG_LEVEL
14 
15 #include <zephyr/logging/log.h>
16 LOG_MODULE_REGISTER(LOG_MODULE_NAME);
17 
18 #include <stdio.h>
19 #include <string.h>
20 
21 #include <zephyr/init.h>
22 
23 #include "lwm2m_object.h"
24 #include "lwm2m_engine.h"
25 #include "ucifi_lpwan.h"
26 
27 #define LPWAN_VERSION_MAJOR 1
28 #define LPWAN_VERSION_MINOR 0
29 
30 /* clang-format off */
31 #define MAX_INSTANCE_COUNT             CONFIG_LWM2M_UCIFI_LPWAN_INSTANCE_COUNT
32 #define IPV4_ADDRESS_MAX               CONFIG_LWM2M_UCIFI_LPWAN_IPV4_ADDRESS_MAX
33 #define IPV6_ADDRESS_MAX               CONFIG_LWM2M_UCIFI_LPWAN_IPV6_ADDRESS_MAX
34 #define NETWORK_ADDRESS_MAX            CONFIG_LWM2M_UCIFI_LPWAN_NETWORK_ADDRESS_MAX
35 #define SECONDARY_NETWORK_ADDRESS_MAX  CONFIG_LWM2M_UCIFI_LPWAN_SECONDARY_NETWORK_ADDRESS_MAX
36 #define PEER_ADDRESS_MAX               CONFIG_LWM2M_UCIFI_LPWAN_PEER_ADDRESS_MAX
37 #define MULTICAST_GRP_ADDRESS_MAX      CONFIG_LWM2M_UCIFI_LPWAN_MULTICAST_GRP_ADDRESS_MAX
38 #define MULTICAST_GRP_KEY_MAX          CONFIG_LWM2M_UCIFI_LPWAN_MULTICAST_GRP_KEY_MAX
39 /* clang-format on */
40 
41 /*
42  * Calculate resource instances as follows:
43  * start with UCIFI_LPWAN_MAX_RID
44  * subtract EXEC resources (0)
45  * subtract MULTI resources because their counts include 0 resource (7)
46  * add UCIFI_LPWAN_IPV4_ADDRESS_RID resource instances
47  * add UCIFI_LPWAN_IPV6_ADDRESS_RID resource instances
48  * add UCIFI_LPWAN_NETWORK_ADDRESS_RID resource instances
49  * add UCIFI_LPWAN_SECONDARY_ADDRESS_RID resource instances
50  * add UCIFI_LPWAN_PEER_ADDRESS_RID resource instances
51  * add UCIFI_LPWAN_MULTICAST_GRP_ADDRESS_RID resource instances
52  * add UCIFI_LPWAN_MULTICAST_GRP_KEY_RID resource instances
53  */
54 #define NUMBER_EXEC_RESOURCES  0
55 #define NUMBER_MULTI_RESOURCES 7
56 #define RESOURCE_INSTANCE_COUNT                                                                    \
57 	(UCIFI_LPWAN_MAX_RID - NUMBER_EXEC_RESOURCES - NUMBER_MULTI_RESOURCES + IPV4_ADDRESS_MAX + \
58 	 IPV6_ADDRESS_MAX + NETWORK_ADDRESS_MAX + SECONDARY_NETWORK_ADDRESS_MAX +                  \
59 	 PEER_ADDRESS_MAX + MULTICAST_GRP_ADDRESS_MAX + MULTICAST_GRP_KEY_MAX)
60 
61 static struct lwm2m_engine_obj lpwan;
62 static struct lwm2m_engine_obj_field fields[] = {
63 	OBJ_FIELD_DATA(UCIFI_LPWAN_NETWORK_TYPE_RID, R_OPT, STRING),
64 	OBJ_FIELD_DATA(UCIFI_LPWAN_IPV4_ADDRESS_RID, RW_OPT, STRING),
65 	OBJ_FIELD_DATA(UCIFI_LPWAN_IPV6_ADDRESS_RID, RW_OPT, STRING),
66 	OBJ_FIELD_DATA(UCIFI_LPWAN_NETWORK_ADDRESS_RID, RW_OPT, STRING),
67 	OBJ_FIELD_DATA(UCIFI_LPWAN_SECONDARY_ADDRESS_RID, RW_OPT, STRING),
68 	OBJ_FIELD_DATA(UCIFI_LPWAN_MAC_ADDRESS_RID, RW, STRING),
69 	OBJ_FIELD_DATA(UCIFI_LPWAN_PEER_ADDRESS_RID, R_OPT, STRING),
70 	OBJ_FIELD_DATA(UCIFI_LPWAN_MULTICAST_GRP_ADDRESS_RID, RW_OPT, STRING),
71 	OBJ_FIELD_DATA(UCIFI_LPWAN_MULTICAST_GRP_KEY_RID, RW_OPT, STRING),
72 	OBJ_FIELD_DATA(UCIFI_LPWAN_DATA_RATE_RID, RW_OPT, INT),
73 	OBJ_FIELD_DATA(UCIFI_LPWAN_TRANSMIT_POWER_RID, R_OPT, FLOAT),
74 	OBJ_FIELD_DATA(UCIFI_LPWAN_FREQUENCY_RID, RW_OPT, FLOAT),
75 	OBJ_FIELD_DATA(UCIFI_LPWAN_SESSION_TIME_RID, RW_OPT, TIME),
76 	OBJ_FIELD_DATA(UCIFI_LPWAN_SESSION_DURATION_RID, R_OPT, TIME),
77 	OBJ_FIELD_DATA(UCIFI_LPWAN_MESH_NODE_RID, RW_OPT, BOOL),
78 	OBJ_FIELD_DATA(UCIFI_LPWAN_MAX_REPEAT_TIME_RID, RW_OPT, INT),
79 	OBJ_FIELD_DATA(UCIFI_LPWAN_NUMBER_REPEATS_RID, R_OPT, INT),
80 	OBJ_FIELD_DATA(UCIFI_LPWAN_SIGNAL_NOISE_RATIO_RID, R_OPT, FLOAT),
81 	OBJ_FIELD_DATA(UCIFI_LPWAN_COMM_FAILURE_RID, R_OPT, BOOL),
82 	OBJ_FIELD_DATA(UCIFI_LPWAN_RSSI_RID, R_OPT, FLOAT),
83 	OBJ_FIELD_DATA(UCIFI_LPWAN_IMSI_RID, R_OPT, STRING),
84 	OBJ_FIELD_DATA(UCIFI_LPWAN_IMEI_RID, R_OPT, STRING),
85 	OBJ_FIELD_DATA(UCIFI_LPWAN_COMM_OPERATOR_RID, R_OPT, STRING),
86 	OBJ_FIELD_DATA(UCIFI_LPWAN_IC_CARD_IDENTIFIER_RID, R_OPT, STRING),
87 };
88 
89 static struct lwm2m_engine_obj_inst inst[MAX_INSTANCE_COUNT];
90 static struct lwm2m_engine_res res[MAX_INSTANCE_COUNT][UCIFI_LPWAN_MAX_RID];
91 static struct lwm2m_engine_res_inst res_inst[MAX_INSTANCE_COUNT][RESOURCE_INSTANCE_COUNT];
92 
93 /* resource state variables */
94 static char mac[MAX_INSTANCE_COUNT][MAC_ADDRESS_SIZE];
95 
lpwan_create(uint16_t obj_inst_id)96 static struct lwm2m_engine_obj_inst *lpwan_create(uint16_t obj_inst_id)
97 {
98 	int index, i = 0, j = 0;
99 
100 	/* Check that there is no other instance with this ID */
101 	for (index = 0; index < MAX_INSTANCE_COUNT; index++) {
102 		if ((inst[index].obj != NULL) && (inst[index].obj_inst_id == obj_inst_id)) {
103 			LOG_ERR("Can not create instance - already existing: %u", obj_inst_id);
104 			return NULL;
105 		}
106 	}
107 
108 	for (index = 0; index < MAX_INSTANCE_COUNT; index++) {
109 		if (inst[index].obj == NULL) {
110 			break;
111 		}
112 	}
113 
114 	if (index >= MAX_INSTANCE_COUNT) {
115 		LOG_ERR("Can not create instance - no more room: %u", obj_inst_id);
116 		return NULL;
117 	}
118 
119 	/* Reset to uninitialised values */
120 	(void)memset(res[index], 0, sizeof(res[index]));
121 	mac[index][0] = '\0';
122 
123 	init_res_instance(res_inst[index], ARRAY_SIZE(res_inst[index]));
124 
125 	/* initialize instance resource data */
126 	INIT_OBJ_RES_OPTDATA(UCIFI_LPWAN_NETWORK_TYPE_RID, res[index], i, res_inst[index], j);
127 	INIT_OBJ_RES_MULTI_OPTDATA(UCIFI_LPWAN_IPV4_ADDRESS_RID, res[index], i, res_inst[index], j,
128 				   IPV4_ADDRESS_MAX, false);
129 	INIT_OBJ_RES_MULTI_OPTDATA(UCIFI_LPWAN_IPV6_ADDRESS_RID, res[index], i, res_inst[index], j,
130 				   IPV6_ADDRESS_MAX, false);
131 	INIT_OBJ_RES_MULTI_OPTDATA(UCIFI_LPWAN_NETWORK_ADDRESS_RID, res[index], i, res_inst[index],
132 				   j, NETWORK_ADDRESS_MAX, false);
133 	INIT_OBJ_RES_MULTI_OPTDATA(UCIFI_LPWAN_SECONDARY_ADDRESS_RID, res[index], i,
134 				   res_inst[index], j, SECONDARY_NETWORK_ADDRESS_MAX, false);
135 	INIT_OBJ_RES_DATA_LEN(UCIFI_LPWAN_MAC_ADDRESS_RID, res[index], i, res_inst[index], j,
136 			  mac[index], MAC_ADDRESS_SIZE, 0);
137 	INIT_OBJ_RES_MULTI_OPTDATA(UCIFI_LPWAN_PEER_ADDRESS_RID, res[index], i, res_inst[index], j,
138 				   PEER_ADDRESS_MAX, false);
139 	INIT_OBJ_RES_MULTI_OPTDATA(UCIFI_LPWAN_MULTICAST_GRP_ADDRESS_RID, res[index], i,
140 				   res_inst[index], j, MULTICAST_GRP_ADDRESS_MAX, false);
141 	INIT_OBJ_RES_MULTI_OPTDATA(UCIFI_LPWAN_MULTICAST_GRP_KEY_RID, res[index], i,
142 				   res_inst[index], j, MULTICAST_GRP_KEY_MAX, false);
143 	INIT_OBJ_RES_OPTDATA(UCIFI_LPWAN_DATA_RATE_RID, res[index], i, res_inst[index], j);
144 	INIT_OBJ_RES_OPTDATA(UCIFI_LPWAN_TRANSMIT_POWER_RID, res[index], i, res_inst[index], j);
145 	INIT_OBJ_RES_OPTDATA(UCIFI_LPWAN_FREQUENCY_RID, res[index], i, res_inst[index], j);
146 	INIT_OBJ_RES_OPTDATA(UCIFI_LPWAN_SESSION_TIME_RID, res[index], i, res_inst[index], j);
147 	INIT_OBJ_RES_OPTDATA(UCIFI_LPWAN_SESSION_DURATION_RID, res[index], i, res_inst[index], j);
148 	INIT_OBJ_RES_OPTDATA(UCIFI_LPWAN_MESH_NODE_RID, res[index], i, res_inst[index], j);
149 	INIT_OBJ_RES_OPTDATA(UCIFI_LPWAN_MAX_REPEAT_TIME_RID, res[index], i, res_inst[index], j);
150 	INIT_OBJ_RES_OPTDATA(UCIFI_LPWAN_NUMBER_REPEATS_RID, res[index], i, res_inst[index], j);
151 	INIT_OBJ_RES_OPTDATA(UCIFI_LPWAN_SIGNAL_NOISE_RATIO_RID, res[index], i, res_inst[index], j);
152 	INIT_OBJ_RES_OPTDATA(UCIFI_LPWAN_COMM_FAILURE_RID, res[index], i, res_inst[index], j);
153 	INIT_OBJ_RES_OPTDATA(UCIFI_LPWAN_RSSI_RID, res[index], i, res_inst[index], j);
154 	INIT_OBJ_RES_OPTDATA(UCIFI_LPWAN_IMSI_RID, res[index], i, res_inst[index], j);
155 	INIT_OBJ_RES_OPTDATA(UCIFI_LPWAN_IMEI_RID, res[index], i, res_inst[index], j);
156 	INIT_OBJ_RES_OPTDATA(UCIFI_LPWAN_COMM_OPERATOR_RID, res[index], i, res_inst[index], j);
157 	INIT_OBJ_RES_OPTDATA(UCIFI_LPWAN_IC_CARD_IDENTIFIER_RID, res[index], i, res_inst[index], j);
158 
159 	inst[index].resources = res[index];
160 	inst[index].resource_count = i;
161 
162 	LOG_DBG("Create access control instance: %d", obj_inst_id);
163 	return &inst[index];
164 }
165 
ucifi_lpwan_init(void)166 static int ucifi_lpwan_init(void)
167 {
168 	lpwan.obj_id = LWM2M_UCIFI_LPWAN_ID;
169 	lpwan.version_major = LPWAN_VERSION_MAJOR;
170 	lpwan.version_minor = LPWAN_VERSION_MINOR;
171 	lpwan.is_core = false;
172 	lpwan.fields = fields;
173 	lpwan.field_count = ARRAY_SIZE(fields);
174 	lpwan.max_instance_count = MAX_INSTANCE_COUNT;
175 	lpwan.create_cb = lpwan_create;
176 	lwm2m_register_obj(&lpwan);
177 
178 	return 0;
179 }
180 
181 LWM2M_OBJ_INIT(ucifi_lpwan_init);
182