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* Copyright (c) 2018 Intel Corporation
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <misc/util.h>
#include <misc/byteorder.h>
#include <settings/settings.h>
#include <net/buf.h>
#include <bluetooth/hci.h>
#include <bluetooth/conn.h>
#include <bluetooth/mesh.h>
#define BT_DBG_ENABLED IS_ENABLED(CONFIG_BT_MESH_DEBUG_SETTINGS)
#define LOG_MODULE_NAME bt_mesh_settings
#include "common/log.h"
#include "../settings.h"
#include "mesh.h"
#include "net.h"
#include "crypto.h"
#include "transport.h"
#include "access.h"
#include "foundation.h"
#include "proxy.h"
#include "settings.h"
/* Tracking of what storage changes are pending for App and Net Keys. We
* track this in a separate array here instead of within the respective
* bt_mesh_app_key and bt_mesh_subnet structs themselves, since once a key
* gets deleted its struct becomes invalid and may be reused for other keys.
*/
static struct key_update {
u16_t key_idx:12, /* AppKey or NetKey Index */
valid:1, /* 1 if this entry is valid, 0 if not */
app_key:1, /* 1 if this is an AppKey, 0 if a NetKey */
clear:1; /* 1 if key needs clearing, 0 if storing */
} key_updates[CONFIG_BT_MESH_APP_KEY_COUNT + CONFIG_BT_MESH_SUBNET_COUNT];
static struct k_delayed_work pending_store;
/* Mesh network storage information */
struct net_val {
u16_t primary_addr;
u8_t dev_key[16];
} __packed;
/* Sequence number storage */
struct seq_val {
u8_t val[3];
} __packed;
/* Heartbeat Publication storage */
struct hb_pub_val {
u16_t dst;
u8_t period;
u8_t ttl;
u16_t feat;
u16_t net_idx:12,
indefinite:1;
};
/* Miscelaneous configuration server model states */
struct cfg_val {
u8_t net_transmit;
u8_t relay;
u8_t relay_retransmit;
u8_t beacon;
u8_t gatt_proxy;
u8_t frnd;
u8_t default_ttl;
};
/* IV Index & IV Update storage */
struct iv_val {
u32_t iv_index;
u8_t iv_update:1,
iv_duration:7;
} __packed;
/* Replay Protection List storage */
struct rpl_val {
u32_t seq:24,
old_iv:1;
};
/* NetKey storage information */
struct net_key_val {
u8_t kr_flag:1,
kr_phase:7;
u8_t val[2][16];
} __packed;
/* AppKey storage information */
struct app_key_val {
u16_t net_idx;
bool updated;
u8_t val[2][16];
} __packed;
struct mod_pub_val {
u16_t addr;
u16_t key;
u8_t ttl;
u8_t retransmit;
u8_t period;
u8_t period_div:4,
cred:1;
};
/* We need this so we don't overwrite app-hardcoded values in case FCB
* contains a history of changes but then has a NULL at the end.
*/
static struct {
bool valid;
struct cfg_val cfg;
} stored_cfg;
static inline int mesh_x_set(void *val_ctx, void *out, size_t read_len)
{
int len;
len = settings_val_read_cb(val_ctx, out, read_len);
if (len < 0) {
BT_ERR("Failed to read value (err %d)", len);
return len;
}
BT_HEXDUMP_DBG(out, len, "val");
if (len != read_len) {
BT_ERR("Unexpected value length (%d != %zu)", len, read_len);
return -EINVAL;
}
return 0;
}
static int net_set(int argc, char **argv, void *val_ctx)
{
struct net_val net;
int err;
if (settings_val_get_len_cb(val_ctx) == 0) {
BT_DBG("val (null)");
bt_mesh_comp_unprovision();
(void)memset(bt_mesh.dev_key, 0, sizeof(bt_mesh.dev_key));
return 0;
}
err = mesh_x_set(val_ctx, &net, sizeof(net));
if (err) {
BT_ERR("Failed to set \'net\'");
return err;
}
memcpy(bt_mesh.dev_key, net.dev_key, sizeof(bt_mesh.dev_key));
bt_mesh_comp_provision(net.primary_addr);
BT_DBG("Provisioned with primary address 0x%04x", net.primary_addr);
BT_DBG("Recovered DevKey %s", bt_hex(bt_mesh.dev_key, 16));
return 0;
}
static int iv_set(int argc, char **argv, void *val_ctx)
{
struct iv_val iv;
int err;
if (settings_val_get_len_cb(val_ctx) == 0) {
BT_DBG("IV deleted");
bt_mesh.iv_index = 0U;
atomic_clear_bit(bt_mesh.flags, BT_MESH_IVU_IN_PROGRESS);
return 0;
}
err = mesh_x_set(val_ctx, &iv, sizeof(iv));
if (err) {
BT_ERR("Failed to set \'iv\'");
return err;
}
bt_mesh.iv_index = iv.iv_index;
atomic_set_bit_to(bt_mesh.flags, BT_MESH_IVU_IN_PROGRESS, iv.iv_update);
bt_mesh.ivu_duration = iv.iv_duration;
BT_DBG("IV Index 0x%04x (IV Update Flag %u) duration %u hours",
iv.iv_index, iv.iv_update, iv.iv_duration);
return 0;
}
static int seq_set(int argc, char **argv, void *val_ctx)
{
struct seq_val seq;
int err;
if (settings_val_get_len_cb(val_ctx) == 0) {
BT_DBG("val (null)");
bt_mesh.seq = 0U;
return 0;
}
err = mesh_x_set(val_ctx, &seq, sizeof(seq));
if (err) {
BT_ERR("Failed to set \'seq\'");
return err;
}
bt_mesh.seq = ((u32_t)seq.val[0] | ((u32_t)seq.val[1] << 8) |
((u32_t)seq.val[2] << 16));
if (CONFIG_BT_MESH_SEQ_STORE_RATE > 0) {
/* Make sure we have a large enough sequence number. We
* subtract 1 so that the first transmission causes a write
* to the settings storage.
*/
bt_mesh.seq += (CONFIG_BT_MESH_SEQ_STORE_RATE -
(bt_mesh.seq % CONFIG_BT_MESH_SEQ_STORE_RATE));
bt_mesh.seq--;
}
BT_DBG("Sequence Number 0x%06x", bt_mesh.seq);
return 0;
}
static struct bt_mesh_rpl *rpl_find(u16_t src)
{
int i;
for (i = 0; i < ARRAY_SIZE(bt_mesh.rpl); i++) {
if (bt_mesh.rpl[i].src == src) {
return &bt_mesh.rpl[i];
}
}
return NULL;
}
static struct bt_mesh_rpl *rpl_alloc(u16_t src)
{
int i;
for (i = 0; i < ARRAY_SIZE(bt_mesh.rpl); i++) {
if (!bt_mesh.rpl[i].src) {
bt_mesh.rpl[i].src = src;
return &bt_mesh.rpl[i];
}
}
return NULL;
}
static int rpl_set(int argc, char **argv, void *val_ctx)
{
struct bt_mesh_rpl *entry;
struct rpl_val rpl;
int err;
u16_t src;
if (argc < 1) {
BT_ERR("Invalid argc (%d)", argc);
return -ENOENT;
}
src = strtol(argv[0], NULL, 16);
entry = rpl_find(src);
if (settings_val_get_len_cb(val_ctx) == 0) {
BT_DBG("val (null)");
if (entry) {
(void)memset(entry, 0, sizeof(*entry));
} else {
BT_WARN("Unable to find RPL entry for 0x%04x", src);
}
return 0;
}
if (!entry) {
entry = rpl_alloc(src);
if (!entry) {
BT_ERR("Unable to allocate RPL entry for 0x%04x", src);
return -ENOMEM;
}
}
err = mesh_x_set(val_ctx, &rpl, sizeof(rpl));
if (err) {
BT_ERR("Failed to set `net`");
return err;
}
entry->seq = rpl.seq;
entry->old_iv = rpl.old_iv;
BT_DBG("RPL entry for 0x%04x: Seq 0x%06x old_iv %u", entry->src,
entry->seq, entry->old_iv);
return 0;
}
static int net_key_set(int argc, char **argv, void *val_ctx)
{
struct bt_mesh_subnet *sub;
struct net_key_val key;
int i, err;
u16_t net_idx;
net_idx = strtol(argv[0], NULL, 16);
sub = bt_mesh_subnet_get(net_idx);
if (settings_val_get_len_cb(val_ctx) == 0) {
BT_DBG("val (null)");
if (!sub) {
BT_ERR("No subnet with NetKeyIndex 0x%03x", net_idx);
return -ENOENT;
}
BT_DBG("Deleting NetKeyIndex 0x%03x", net_idx);
bt_mesh_subnet_del(sub, false);
return 0;
}
err = mesh_x_set(val_ctx, &key, sizeof(key));
if (err) {
BT_ERR("Failed to set \'net-key\'");
return err;
}
if (sub) {
BT_DBG("Updating existing NetKeyIndex 0x%03x", net_idx);
sub->kr_flag = key.kr_flag;
sub->kr_phase = key.kr_phase;
memcpy(sub->keys[0].net, &key.val[0], 16);
memcpy(sub->keys[1].net, &key.val[1], 16);
return 0;
}
for (i = 0; i < ARRAY_SIZE(bt_mesh.sub); i++) {
if (bt_mesh.sub[i].net_idx == BT_MESH_KEY_UNUSED) {
sub = &bt_mesh.sub[i];
break;
}
}
if (!sub) {
BT_ERR("No space to allocate a new subnet");
return -ENOMEM;
}
sub->net_idx = net_idx;
sub->kr_flag = key.kr_flag;
sub->kr_phase = key.kr_phase;
memcpy(sub->keys[0].net, &key.val[0], 16);
memcpy(sub->keys[1].net, &key.val[1], 16);
BT_DBG("NetKeyIndex 0x%03x recovered from storage", net_idx);
return 0;
}
static int app_key_set(int argc, char **argv, void *val_ctx)
{
struct bt_mesh_app_key *app;
struct app_key_val key;
u16_t app_idx;
int err;
app_idx = strtol(argv[0], NULL, 16);
if (settings_val_get_len_cb(val_ctx) == 0) {
BT_DBG("val (null)");
BT_DBG("Deleting AppKeyIndex 0x%03x", app_idx);
app = bt_mesh_app_key_find(app_idx);
if (app) {
bt_mesh_app_key_del(app, false);
}
return 0;
}
err = mesh_x_set(val_ctx, &key, sizeof(key));
if (err) {
BT_ERR("Failed to set \'app-key\'");
return err;
}
app = bt_mesh_app_key_find(app_idx);
if (!app) {
app = bt_mesh_app_key_alloc(app_idx);
}
if (!app) {
BT_ERR("No space for a new app key");
return -ENOMEM;
}
app->net_idx = key.net_idx;
app->app_idx = app_idx;
app->updated = key.updated;
memcpy(app->keys[0].val, key.val[0], 16);
memcpy(app->keys[1].val, key.val[1], 16);
bt_mesh_app_id(app->keys[0].val, &app->keys[0].id);
bt_mesh_app_id(app->keys[1].val, &app->keys[1].id);
BT_DBG("AppKeyIndex 0x%03x recovered from storage", app_idx);
return 0;
}
static int hb_pub_set(int argc, char **argv, void *val_ctx)
{
struct bt_mesh_hb_pub *pub = bt_mesh_hb_pub_get();
struct hb_pub_val hb_val;
int err;
if (!pub) {
return -ENOENT;
}
if (settings_val_get_len_cb(val_ctx) == 0) {
BT_DBG("val (null)");
pub->dst = BT_MESH_ADDR_UNASSIGNED;
pub->count = 0;
pub->ttl = 0;
pub->period = 0;
pub->feat = 0;
BT_DBG("Cleared heartbeat publication");
return 0;
}
err = mesh_x_set(val_ctx, &hb_val, sizeof(hb_val));
if (err) {
BT_ERR("Failed to set \'hb_val\'");
return err;
}
pub->dst = hb_val.dst;
pub->period = hb_val.period;
pub->ttl = hb_val.ttl;
pub->feat = hb_val.feat;
pub->net_idx = hb_val.net_idx;
if (hb_val.indefinite) {
pub->count = 0xffff;
} else {
pub->count = 0;
}
BT_DBG("Restored heartbeat publication");
return 0;
}
static int cfg_set(int argc, char **argv, void *val_ctx)
{
struct bt_mesh_cfg_srv *cfg = bt_mesh_cfg_get();
int err;
if (!cfg) {
return -ENOENT;
}
if (settings_val_get_len_cb(val_ctx) == 0) {
BT_DBG("val (null)");
stored_cfg.valid = false;
BT_DBG("Cleared configuration state");
return 0;
}
err = mesh_x_set(val_ctx, &stored_cfg.cfg, sizeof(stored_cfg.cfg));
if (err) {
BT_ERR("Failed to set \'cfg\'");
return err;
}
stored_cfg.valid = true;
BT_DBG("Restored configuration state");
return 0;
}
static int mod_set_bind(struct bt_mesh_model *mod, void *val_ctx)
{
int len, i;
/* Start with empty array regardless of cleared or set value */
for (i = 0; i < ARRAY_SIZE(mod->keys); i++) {
mod->keys[i] = BT_MESH_KEY_UNUSED;
}
if (settings_val_get_len_cb(val_ctx) == 0) {
BT_DBG("val (null)");
BT_DBG("Cleared bindings for model");
return 0;
}
len = settings_val_read_cb(val_ctx, mod->keys, sizeof(mod->keys));
if (len < 0) {
BT_ERR("Failed to read value (err %d)", len);
return len;
}
BT_DBG("Decoded %u bound keys for model", len / sizeof(mod->keys[0]));
return 0;
}
static int mod_set_sub(struct bt_mesh_model *mod, void *val_ctx)
{
int len;
/* Start with empty array regardless of cleared or set value */
(void)memset(mod->groups, 0, sizeof(mod->groups));
if (settings_val_get_len_cb(val_ctx) == 0) {
BT_DBG("val (null)");
BT_DBG("Cleared subscriptions for model");
return 0;
}
len = settings_val_read_cb(val_ctx, mod->groups, sizeof(mod->groups));
if (len < 0) {
BT_ERR("Failed to read value (err %d)", len);
return len;
}
BT_DBG("Decoded %u subscribed group addresses for model",
len / sizeof(mod->groups[0]));
return 0;
}
static int mod_set_pub(struct bt_mesh_model *mod, void *val_ctx)
{
struct mod_pub_val pub;
int err;
if (!mod->pub) {
BT_WARN("Model has no publication context!");
return -EINVAL;
}
if (settings_val_get_len_cb(val_ctx) == 0) {
BT_DBG("val (null)");
mod->pub->addr = BT_MESH_ADDR_UNASSIGNED;
mod->pub->key = 0;
mod->pub->cred = 0;
mod->pub->ttl = 0;
mod->pub->period = 0;
mod->pub->retransmit = 0;
mod->pub->count = 0;
BT_DBG("Cleared publication for model");
return 0;
}
err = mesh_x_set(val_ctx, &pub, sizeof(pub));
if (err) {
BT_ERR("Failed to set \'model-pub\'");
return err;
}
mod->pub->addr = pub.addr;
mod->pub->key = pub.key;
mod->pub->cred = pub.cred;
mod->pub->ttl = pub.ttl;
mod->pub->period = pub.period;
mod->pub->retransmit = pub.retransmit;
mod->pub->count = 0;
BT_DBG("Restored model publication, dst 0x%04x app_idx 0x%03x",
pub.addr, pub.key);
return 0;
}
static int mod_set(bool vnd, int argc, char **argv, void *val_ctx)
{
struct bt_mesh_model *mod;
u8_t elem_idx, mod_idx;
u16_t mod_key;
if (argc < 2) {
BT_ERR("Too small argc (%d)", argc);
return -ENOENT;
}
mod_key = strtol(argv[0], NULL, 16);
elem_idx = mod_key >> 8;
mod_idx = mod_key;
BT_DBG("Decoded mod_key 0x%04x as elem_idx %u mod_idx %u",
mod_key, elem_idx, mod_idx);
mod = bt_mesh_model_get(vnd, elem_idx, mod_idx);
if (!mod) {
BT_ERR("Failed to get model for elem_idx %u mod_idx %u",
elem_idx, mod_idx);
return -ENOENT;
}
if (!strcmp(argv[1], "bind")) {
return mod_set_bind(mod, val_ctx);
}
if (!strcmp(argv[1], "sub")) {
return mod_set_sub(mod, val_ctx);
}
if (!strcmp(argv[1], "pub")) {
return mod_set_pub(mod, val_ctx);
}
BT_WARN("Unknown module key %s", argv[1]);
return -ENOENT;
}
static int sig_mod_set(int argc, char **argv, void *val_ctx)
{
return mod_set(false, argc, argv, val_ctx);
}
static int vnd_mod_set(int argc, char **argv, void *val_ctx)
{
return mod_set(true, argc, argv, val_ctx);
}
const struct mesh_setting {
const char *name;
int (*func)(int argc, char **argv, void *val_ctx);
} settings[] = {
{ "Net", net_set },
{ "IV", iv_set },
{ "Seq", seq_set },
{ "RPL", rpl_set },
{ "NetKey", net_key_set },
{ "AppKey", app_key_set },
{ "HBPub", hb_pub_set },
{ "Cfg", cfg_set },
{ "s", sig_mod_set },
{ "v", vnd_mod_set },
};
static int mesh_set(int argc, char **argv, void *val_ctx)
{
int i;
if (argc < 1) {
BT_ERR("Insufficient number of arguments");
return -EINVAL;
}
for (i = 0; i < ARRAY_SIZE(settings); i++) {
if (!strcmp(settings[i].name, argv[0])) {
argc--;
argv++;
return settings[i].func(argc, argv, val_ctx);
}
}
BT_WARN("No matching handler for key %s", log_strdup(argv[0]));
return -ENOENT;
}
static int subnet_init(struct bt_mesh_subnet *sub)
{
int err;
err = bt_mesh_net_keys_create(&sub->keys[0], sub->keys[0].net);
if (err) {
BT_ERR("Unable to generate keys for subnet");
return -EIO;
}
if (sub->kr_phase != BT_MESH_KR_NORMAL) {
err = bt_mesh_net_keys_create(&sub->keys[1], sub->keys[1].net);
if (err) {
BT_ERR("Unable to generate keys for subnet");
(void)memset(&sub->keys[0], 0, sizeof(sub->keys[0]));
return -EIO;
}
}
if (IS_ENABLED(CONFIG_BT_MESH_GATT_PROXY)) {
sub->node_id = BT_MESH_NODE_IDENTITY_STOPPED;
} else {
sub->node_id = BT_MESH_NODE_IDENTITY_NOT_SUPPORTED;
}
/* Make sure we have valid beacon data to be sent */
bt_mesh_net_beacon_update(sub);
return 0;
}
static void commit_mod(struct bt_mesh_model *mod, struct bt_mesh_elem *elem,
bool vnd, bool primary, void *user_data)
{
if (mod->pub && mod->pub->update &&
mod->pub->addr != BT_MESH_ADDR_UNASSIGNED) {
s32_t ms = bt_mesh_model_pub_period_get(mod);
if (ms) {
BT_DBG("Starting publish timer (period %u ms)", ms);
k_delayed_work_submit(&mod->pub->timer, ms);
}
}
}
static int mesh_commit(void)
{
struct bt_mesh_hb_pub *hb_pub;
struct bt_mesh_cfg_srv *cfg;
int i;
BT_DBG("sub[0].net_idx 0x%03x", bt_mesh.sub[0].net_idx);
if (bt_mesh.sub[0].net_idx == BT_MESH_KEY_UNUSED) {
/* Nothing to do since we're not yet provisioned */
return 0;
}
if (IS_ENABLED(CONFIG_BT_MESH_PB_GATT)) {
bt_mesh_proxy_prov_disable();
}
for (i = 0; i < ARRAY_SIZE(bt_mesh.sub); i++) {
struct bt_mesh_subnet *sub = &bt_mesh.sub[i];
int err;
if (sub->net_idx == BT_MESH_KEY_UNUSED) {
continue;
}
err = subnet_init(sub);
if (err) {
BT_ERR("Failed to init subnet 0x%03x", sub->net_idx);
}
}
if (bt_mesh.ivu_duration < BT_MESH_IVU_MIN_HOURS) {
k_delayed_work_submit(&bt_mesh.ivu_timer, BT_MESH_IVU_TIMEOUT);
}
bt_mesh_model_foreach(commit_mod, NULL);
hb_pub = bt_mesh_hb_pub_get();
if (hb_pub && hb_pub->dst != BT_MESH_ADDR_UNASSIGNED &&
hb_pub->count && hb_pub->period) {
BT_DBG("Starting heartbeat publication");
k_work_submit(&hb_pub->timer.work);
}
cfg = bt_mesh_cfg_get();
if (cfg && stored_cfg.valid) {
cfg->net_transmit = stored_cfg.cfg.net_transmit;
cfg->relay = stored_cfg.cfg.relay;
cfg->relay_retransmit = stored_cfg.cfg.relay_retransmit;
cfg->beacon = stored_cfg.cfg.beacon;
cfg->gatt_proxy = stored_cfg.cfg.gatt_proxy;
cfg->frnd = stored_cfg.cfg.frnd;
cfg->default_ttl = stored_cfg.cfg.default_ttl;
}
atomic_set_bit(bt_mesh.flags, BT_MESH_VALID);
bt_mesh_net_start();
return 0;
}
BT_SETTINGS_DEFINE(mesh, mesh_set, mesh_commit, NULL);
static void schedule_store(int flag)
{
s32_t timeout;
atomic_set_bit(bt_mesh.flags, flag);
if (atomic_test_bit(bt_mesh.flags, BT_MESH_NET_PENDING) ||
atomic_test_bit(bt_mesh.flags, BT_MESH_IV_PENDING) ||
atomic_test_bit(bt_mesh.flags, BT_MESH_SEQ_PENDING)) {
timeout = K_NO_WAIT;
} else if (atomic_test_bit(bt_mesh.flags, BT_MESH_RPL_PENDING) &&
(CONFIG_BT_MESH_RPL_STORE_TIMEOUT <
CONFIG_BT_MESH_STORE_TIMEOUT)) {
timeout = K_SECONDS(CONFIG_BT_MESH_RPL_STORE_TIMEOUT);
} else {
timeout = K_SECONDS(CONFIG_BT_MESH_STORE_TIMEOUT);
}
BT_DBG("Waiting %d seconds", timeout / MSEC_PER_SEC);
k_delayed_work_submit(&pending_store, timeout);
}
static void clear_iv(void)
{
int err;
err = settings_delete("bt/mesh/IV");
if (err) {
BT_ERR("Failed to clear IV");
} else {
BT_DBG("Cleared IV");
}
}
static void clear_net(void)
{
int err;
err = settings_delete("bt/mesh/Net");
if (err) {
BT_ERR("Failed to clear Network");
} else {
BT_DBG("Cleared Network");
}
}
static void store_pending_net(void)
{
struct net_val net;
int err;
BT_DBG("addr 0x%04x DevKey %s", bt_mesh_primary_addr(),
bt_hex(bt_mesh.dev_key, 16));
net.primary_addr = bt_mesh_primary_addr();
memcpy(net.dev_key, bt_mesh.dev_key, 16);
err = settings_save_one("bt/mesh/Net", &net, sizeof(net));
if (err) {
BT_ERR("Failed to store Network value");
} else {
BT_DBG("Stored Network value");
}
}
void bt_mesh_store_net(void)
{
schedule_store(BT_MESH_NET_PENDING);
}
static void store_pending_iv(void)
{
struct iv_val iv;
int err;
iv.iv_index = bt_mesh.iv_index;
iv.iv_update = atomic_test_bit(bt_mesh.flags, BT_MESH_IVU_IN_PROGRESS);
iv.iv_duration = bt_mesh.ivu_duration;
err = settings_save_one("bt/mesh/IV", &iv, sizeof(iv));
if (err) {
BT_ERR("Failed to store IV value");
} else {
BT_DBG("Stored IV value");
}
}
void bt_mesh_store_iv(bool only_duration)
{
schedule_store(BT_MESH_IV_PENDING);
if (!only_duration) {
/* Always update Seq whenever IV changes */
schedule_store(BT_MESH_SEQ_PENDING);
}
}
static void store_pending_seq(void)
{
struct seq_val seq;
int err;
seq.val[0] = bt_mesh.seq;
seq.val[1] = bt_mesh.seq >> 8;
seq.val[2] = bt_mesh.seq >> 16;
err = settings_save_one("bt/mesh/Seq", &seq, sizeof(seq));
if (err) {
BT_ERR("Failed to stor Seq value");
} else {
BT_DBG("Stored Seq value");
}
}
void bt_mesh_store_seq(void)
{
if (CONFIG_BT_MESH_SEQ_STORE_RATE &&
(bt_mesh.seq % CONFIG_BT_MESH_SEQ_STORE_RATE)) {
return;
}
schedule_store(BT_MESH_SEQ_PENDING);
}
static void store_rpl(struct bt_mesh_rpl *entry)
{
struct rpl_val rpl;
char path[18];
int err;
BT_DBG("src 0x%04x seq 0x%06x old_iv %u", entry->src, entry->seq,
entry->old_iv);
rpl.seq = entry->seq;
rpl.old_iv = entry->old_iv;
snprintk(path, sizeof(path), "bt/mesh/RPL/%x", entry->src);
err = settings_save_one(path, &rpl, sizeof(rpl));
if (err) {
BT_ERR("Failed to store RPL %s value", log_strdup(path));
} else {
BT_DBG("Stored RPL %s value", log_strdup(path));
}
}
static void clear_rpl(void)
{
int i, err;
BT_DBG("");
for (i = 0; i < ARRAY_SIZE(bt_mesh.rpl); i++) {
struct bt_mesh_rpl *rpl = &bt_mesh.rpl[i];
char path[18];
if (!rpl->src) {
continue;
}
snprintk(path, sizeof(path), "bt/mesh/RPL/%x", rpl->src);
err = settings_delete(path);
if (err) {
BT_ERR("Failed to clear RPL");
} else {
BT_DBG("Cleared RPL");
}
(void)memset(rpl, 0, sizeof(*rpl));
}
}
static void store_pending_rpl(void)
{
int i;
BT_DBG("");
for (i = 0; i < ARRAY_SIZE(bt_mesh.rpl); i++) {
struct bt_mesh_rpl *rpl = &bt_mesh.rpl[i];
if (rpl->store) {
rpl->store = false;
store_rpl(rpl);
}
}
}
static void store_pending_hb_pub(void)
{
struct bt_mesh_hb_pub *pub = bt_mesh_hb_pub_get();
struct hb_pub_val val;
int err;
if (!pub) {
return;
}
if (pub->dst == BT_MESH_ADDR_UNASSIGNED) {
err = settings_delete("bt/mesh/HBPub");
} else {
val.indefinite = (pub->count == 0xffff);
val.dst = pub->dst;
val.period = pub->period;
val.ttl = pub->ttl;
val.feat = pub->feat;
val.net_idx = pub->net_idx;
err = settings_save_one("bt/mesh/HBPub", &val, sizeof(val));
}
if (err) {
BT_ERR("Failed to store Heartbeat Publication");
} else {
BT_DBG("Stored Heartbeat Publication");
}
}
static void store_pending_cfg(void)
{
struct bt_mesh_cfg_srv *cfg = bt_mesh_cfg_get();
struct cfg_val val;
int err;
if (!cfg) {
return;
}
val.net_transmit = cfg->net_transmit;
val.relay = cfg->relay;
val.relay_retransmit = cfg->relay_retransmit;
val.beacon = cfg->beacon;
val.gatt_proxy = cfg->gatt_proxy;
val.frnd = cfg->frnd;
val.default_ttl = cfg->default_ttl;
err = settings_save_one("bt/mesh/Cfg", &val, sizeof(val));
if (err) {
BT_ERR("Failed to store configuration value");
} else {
BT_DBG("Stored configuration value");
BT_HEXDUMP_DBG(&val, sizeof(val), "raw value");
}
}
static void clear_cfg(void)
{
int err;
err = settings_delete("bt/mesh/Cfg");
if (err) {
BT_ERR("Failed to clear configuration");
} else {
BT_DBG("Cleared configuration");
}
}
static void clear_app_key(u16_t app_idx)
{
char path[20];
int err;
snprintk(path, sizeof(path), "bt/mesh/AppKey/%x", app_idx);
err = settings_delete(path);
if (err) {
BT_ERR("Failed to clear AppKeyIndex 0x%03x", app_idx);
} else {
BT_DBG("Cleared AppKeyIndex 0x%03x", app_idx);
}
}
static void clear_net_key(u16_t net_idx)
{
char path[20];
int err;
BT_DBG("NetKeyIndex 0x%03x", net_idx);
snprintk(path, sizeof(path), "bt/mesh/NetKey/%x", net_idx);
err = settings_delete(path);
if (err) {
BT_ERR("Failed to clear NetKeyIndex 0x%03x", net_idx);
} else {
BT_DBG("Cleared NetKeyIndex 0x%03x", net_idx);
}
}
static void store_net_key(struct bt_mesh_subnet *sub)
{
struct net_key_val key;
char path[20];
int err;
BT_DBG("NetKeyIndex 0x%03x NetKey %s", sub->net_idx,
bt_hex(sub->keys[0].net, 16));
memcpy(&key.val[0], sub->keys[0].net, 16);
memcpy(&key.val[1], sub->keys[1].net, 16);
key.kr_flag = sub->kr_flag;
key.kr_phase = sub->kr_phase;
snprintk(path, sizeof(path), "bt/mesh/NetKey/%x", sub->net_idx);
err = settings_save_one(path, &key, sizeof(key));
if (err) {
BT_ERR("Failed to store NetKey value");
} else {
BT_DBG("Stored NetKey value");
}
}
static void store_app_key(struct bt_mesh_app_key *app)
{
struct app_key_val key;
char path[20];
int err;
key.net_idx = app->net_idx;
key.updated = app->updated;
memcpy(key.val[0], app->keys[0].val, 16);
memcpy(key.val[1], app->keys[1].val, 16);
snprintk(path, sizeof(path), "bt/mesh/AppKey/%x", app->app_idx);
err = settings_save_one(path, &key, sizeof(key));
if (err) {
BT_ERR("Failed to store AppKey %s value", log_strdup(path));
} else {
BT_DBG("Stored AppKey %s value", log_strdup(path));
}
}
static void store_pending_keys(void)
{
int i;
for (i = 0; i < ARRAY_SIZE(key_updates); i++) {
struct key_update *update = &key_updates[i];
if (!update->valid) {
continue;
}
if (update->clear) {
if (update->app_key) {
clear_app_key(update->key_idx);
} else {
clear_net_key(update->key_idx);
}
} else {
if (update->app_key) {
struct bt_mesh_app_key *key;
key = bt_mesh_app_key_find(update->key_idx);
if (key) {
store_app_key(key);
} else {
BT_WARN("AppKeyIndex 0x%03x not found",
update->key_idx);
}
} else {
struct bt_mesh_subnet *sub;
sub = bt_mesh_subnet_get(update->key_idx);
if (sub) {
store_net_key(sub);
} else {
BT_WARN("NetKeyIndex 0x%03x not found",
update->key_idx);
}
}
}
update->valid = 0U;
}
}
static void encode_mod_path(struct bt_mesh_model *mod, bool vnd,
const char *key, char *path, size_t path_len)
{
u16_t mod_key = (((u16_t)mod->elem_idx << 8) | mod->mod_idx);
if (vnd) {
snprintk(path, path_len, "bt/mesh/v/%x/%s", mod_key, key);
} else {
snprintk(path, path_len, "bt/mesh/s/%x/%s", mod_key, key);
}
}
static void store_pending_mod_bind(struct bt_mesh_model *mod, bool vnd)
{
u16_t keys[CONFIG_BT_MESH_MODEL_KEY_COUNT];
char path[20];
int i, count, err;
for (i = 0, count = 0; i < ARRAY_SIZE(mod->keys); i++) {
if (mod->keys[i] != BT_MESH_KEY_UNUSED) {
keys[count++] = mod->keys[i];
BT_DBG("model key 0x%04x", mod->keys[i]);
}
}
encode_mod_path(mod, vnd, "bind", path, sizeof(path));
err = settings_save_one(path, keys, count * sizeof(keys[0]));
if (err) {
BT_ERR("Failed to store %s value", log_strdup(path));
} else {
BT_DBG("Stored %s value", log_strdup(path));
}
}
static void store_pending_mod_sub(struct bt_mesh_model *mod, bool vnd)
{
u16_t groups[CONFIG_BT_MESH_MODEL_GROUP_COUNT];
char path[20];
int i, count, err;
for (i = 0, count = 0; i < ARRAY_SIZE(mod->groups); i++) {
if (mod->groups[i] != BT_MESH_ADDR_UNASSIGNED) {
groups[count++] = mod->groups[i];
}
}
encode_mod_path(mod, vnd, "sub", path, sizeof(path));
err = settings_save_one(path, groups, count * sizeof(groups[0]));
if (err) {
BT_ERR("Failed to store %s value", log_strdup(path));
} else {
BT_DBG("Stored %s value", log_strdup(path));
}
}
static void store_pending_mod_pub(struct bt_mesh_model *mod, bool vnd)
{
struct mod_pub_val pub;
char path[20];
void *val;
int err;
size_t len;
if (!mod->pub || mod->pub->addr == BT_MESH_ADDR_UNASSIGNED) {
val = NULL;
len = 0;
} else {
pub.addr = mod->pub->addr;
pub.key = mod->pub->key;
pub.ttl = mod->pub->ttl;
pub.retransmit = mod->pub->retransmit;
pub.period = mod->pub->period;
pub.period_div = mod->pub->period_div;
pub.cred = mod->pub->cred;
val = &pub;
len = sizeof(pub);
}
encode_mod_path(mod, vnd, "pub", path, sizeof(path));
err = settings_save_one(path, val, len);
if (err) {
BT_ERR("Failed to store %s value", log_strdup(path));
} else {
BT_DBG("Stored %s value", log_strdup(path));
}
}
static void store_pending_mod(struct bt_mesh_model *mod,
struct bt_mesh_elem *elem, bool vnd,
bool primary, void *user_data)
{
if (!mod->flags) {
return;
}
if (mod->flags & BT_MESH_MOD_BIND_PENDING) {
mod->flags &= ~BT_MESH_MOD_BIND_PENDING;
store_pending_mod_bind(mod, vnd);
}
if (mod->flags & BT_MESH_MOD_SUB_PENDING) {
mod->flags &= ~BT_MESH_MOD_SUB_PENDING;
store_pending_mod_sub(mod, vnd);
}
if (mod->flags & BT_MESH_MOD_PUB_PENDING) {
mod->flags &= ~BT_MESH_MOD_PUB_PENDING;
store_pending_mod_pub(mod, vnd);
}
}
static void store_pending(struct k_work *work)
{
BT_DBG("");
if (atomic_test_and_clear_bit(bt_mesh.flags, BT_MESH_RPL_PENDING)) {
if (atomic_test_bit(bt_mesh.flags, BT_MESH_VALID)) {
store_pending_rpl();
} else {
clear_rpl();
}
}
if (atomic_test_and_clear_bit(bt_mesh.flags, BT_MESH_KEYS_PENDING)) {
store_pending_keys();
}
if (atomic_test_and_clear_bit(bt_mesh.flags, BT_MESH_NET_PENDING)) {
if (atomic_test_bit(bt_mesh.flags, BT_MESH_VALID)) {
store_pending_net();
} else {
clear_net();
}
}
if (atomic_test_and_clear_bit(bt_mesh.flags, BT_MESH_IV_PENDING)) {
if (atomic_test_bit(bt_mesh.flags, BT_MESH_VALID)) {
store_pending_iv();
} else {
clear_iv();
}
}
if (atomic_test_and_clear_bit(bt_mesh.flags, BT_MESH_SEQ_PENDING)) {
store_pending_seq();
}
if (atomic_test_and_clear_bit(bt_mesh.flags, BT_MESH_HB_PUB_PENDING)) {
store_pending_hb_pub();
}
if (atomic_test_and_clear_bit(bt_mesh.flags, BT_MESH_CFG_PENDING)) {
if (atomic_test_bit(bt_mesh.flags, BT_MESH_VALID)) {
store_pending_cfg();
} else {
clear_cfg();
}
}
if (atomic_test_and_clear_bit(bt_mesh.flags, BT_MESH_MOD_PENDING)) {
bt_mesh_model_foreach(store_pending_mod, NULL);
}
}
void bt_mesh_store_rpl(struct bt_mesh_rpl *entry)
{
entry->store = true;
schedule_store(BT_MESH_RPL_PENDING);
}
static struct key_update *key_update_find(bool app_key, u16_t key_idx,
struct key_update **free_slot)
{
struct key_update *match;
int i;
match = NULL;
*free_slot = NULL;
for (i = 0; i < ARRAY_SIZE(key_updates); i++) {
struct key_update *update = &key_updates[i];
if (!update->valid) {
*free_slot = update;
continue;
}
if (update->app_key != app_key) {
continue;
}
if (update->key_idx == key_idx) {
match = update;
}
}
return match;
}
void bt_mesh_store_subnet(struct bt_mesh_subnet *sub)
{
struct key_update *update, *free_slot;
BT_DBG("NetKeyIndex 0x%03x", sub->net_idx);
update = key_update_find(false, sub->net_idx, &free_slot);
if (update) {
update->clear = 0U;
schedule_store(BT_MESH_KEYS_PENDING);
return;
}
if (!free_slot) {
store_net_key(sub);
return;
}
free_slot->valid = 1U;
free_slot->key_idx = sub->net_idx;
free_slot->app_key = 0U;
free_slot->clear = 0U;
schedule_store(BT_MESH_KEYS_PENDING);
}
void bt_mesh_store_app_key(struct bt_mesh_app_key *key)
{
struct key_update *update, *free_slot;
BT_DBG("AppKeyIndex 0x%03x", key->app_idx);
update = key_update_find(true, key->app_idx, &free_slot);
if (update) {
update->clear = 0U;
schedule_store(BT_MESH_KEYS_PENDING);
return;
}
if (!free_slot) {
store_app_key(key);
return;
}
free_slot->valid = 1U;
free_slot->key_idx = key->app_idx;
free_slot->app_key = 1U;
free_slot->clear = 0U;
schedule_store(BT_MESH_KEYS_PENDING);
}
void bt_mesh_store_hb_pub(void)
{
schedule_store(BT_MESH_HB_PUB_PENDING);
}
void bt_mesh_store_cfg(void)
{
schedule_store(BT_MESH_CFG_PENDING);
}
void bt_mesh_clear_net(void)
{
schedule_store(BT_MESH_NET_PENDING);
schedule_store(BT_MESH_IV_PENDING);
schedule_store(BT_MESH_CFG_PENDING);
}
void bt_mesh_clear_subnet(struct bt_mesh_subnet *sub)
{
struct key_update *update, *free_slot;
BT_DBG("NetKeyIndex 0x%03x", sub->net_idx);
update = key_update_find(false, sub->net_idx, &free_slot);
if (update) {
update->clear = 1U;
schedule_store(BT_MESH_KEYS_PENDING);
return;
}
if (!free_slot) {
clear_net_key(sub->net_idx);
return;
}
free_slot->valid = 1U;
free_slot->key_idx = sub->net_idx;
free_slot->app_key = 0U;
free_slot->clear = 1U;
schedule_store(BT_MESH_KEYS_PENDING);
}
void bt_mesh_clear_app_key(struct bt_mesh_app_key *key)
{
struct key_update *update, *free_slot;
BT_DBG("AppKeyIndex 0x%03x", key->app_idx);
update = key_update_find(true, key->app_idx, &free_slot);
if (update) {
update->clear = 1U;
schedule_store(BT_MESH_KEYS_PENDING);
return;
}
if (!free_slot) {
clear_app_key(key->app_idx);
return;
}
free_slot->valid = 1U;
free_slot->key_idx = key->app_idx;
free_slot->app_key = 1U;
free_slot->clear = 1U;
schedule_store(BT_MESH_KEYS_PENDING);
}
void bt_mesh_clear_rpl(void)
{
schedule_store(BT_MESH_RPL_PENDING);
}
void bt_mesh_store_mod_bind(struct bt_mesh_model *mod)
{
mod->flags |= BT_MESH_MOD_BIND_PENDING;
schedule_store(BT_MESH_MOD_PENDING);
}
void bt_mesh_store_mod_sub(struct bt_mesh_model *mod)
{
mod->flags |= BT_MESH_MOD_SUB_PENDING;
schedule_store(BT_MESH_MOD_PENDING);
}
void bt_mesh_store_mod_pub(struct bt_mesh_model *mod)
{
mod->flags |= BT_MESH_MOD_PUB_PENDING;
schedule_store(BT_MESH_MOD_PENDING);
}
void bt_mesh_settings_init(void)
{
k_delayed_work_init(&pending_store, store_pending);
}
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