int
imgr_core_list(struct nmgr_jbuf *njb)
{
const struct flash_area *fa;
struct coredump_header hdr;
struct json_encoder *enc;
struct json_value jv;
int rc;
rc = flash_area_open(FLASH_AREA_CORE, &fa);
if (rc) {
rc = NMGR_ERR_EINVAL;
} else {
rc = flash_area_read(fa, 0, &hdr, sizeof(hdr));
if (rc != 0) {
rc = NMGR_ERR_EINVAL;
} else if (hdr.ch_magic != COREDUMP_MAGIC) {
rc = NMGR_ERR_ENOENT;
} else {
rc = 0;
}
}
enc = &njb->njb_enc;
json_encode_object_start(enc);
JSON_VALUE_INT(&jv, rc);
json_encode_object_entry(enc, "rc", &jv);
json_encode_object_finish(enc);
return 0;
}
int
imgr_boot_read(struct nmgr_jbuf *njb)
{
int rc;
struct json_encoder *enc;
struct image_version ver;
struct json_value jv;
uint8_t hash[IMGMGR_HASH_LEN];
enc = &njb->njb_enc;
json_encode_object_start(enc);
rc = boot_vect_read_test(&ver);
if (!rc) {
imgr_ver_jsonstr(enc, "test", &ver);
}
rc = boot_vect_read_main(&ver);
if (!rc) {
imgr_ver_jsonstr(enc, "main", &ver);
}
rc = imgr_read_info(bsp_imgr_current_slot(), &ver, hash);
if (!rc) {
imgr_ver_jsonstr(enc, "active", &ver);
}
JSON_VALUE_INT(&jv, NMGR_ERR_EOK);
json_encode_object_entry(enc, "rc", &jv);
json_encode_object_finish(enc);
return 0;
}
/**
* Log encode function
* @param log structure, the encoder, json_value,
* timestamp, index
* @return 0 on success; non-zero on failure
*/
static int
log_encode(struct log *log, struct json_encoder *encoder,
struct json_value *jv, int64_t ts, uint32_t index)
{
int rc;
json_encode_object_start(encoder);
JSON_VALUE_STRING(jv, log->l_name);
json_encode_object_entry(encoder, "name", jv);
JSON_VALUE_UINT(jv, log->l_log->log_type);
json_encode_object_entry(encoder, "type", jv);
rc = log_encode_entries(log, encoder, ts, index);
json_encode_object_finish(encoder);
return rc;
}
static void
imgr_hash_jsonstr(struct json_encoder *enc, char *key, uint8_t *hash)
{
struct json_value jv;
char hash_str[IMGMGR_HASH_STR + 1];
base64_encode(hash, IMGMGR_HASH_LEN, hash_str, 1);
JSON_VALUE_STRING(&jv, hash_str);
json_encode_object_entry(enc, key, &jv);
}
static void
imgr_ver_jsonstr(struct json_encoder *enc, char *key,
struct image_version *ver)
{
struct json_value jv;
char ver_str[IMGMGR_NMGR_MAX_VER];
int ver_len;
ver_len = imgr_ver_str(ver, ver_str);
JSON_VALUE_STRINGN(&jv, ver_str, ver_len);
json_encode_object_entry(enc, key, &jv);
}
static int
imgr_list(struct nmgr_jbuf *njb)
{
struct image_version ver;
int i;
int rc;
struct json_encoder *enc;
struct json_value array;
struct json_value versions[4];
struct json_value *version_ptrs[4];
char vers_str[4][IMGMGR_NMGR_MAX_VER];
int ver_len;
int cnt = 0;
for (i = FLASH_AREA_IMAGE_0; i <= FLASH_AREA_IMAGE_1; i++) {
rc = imgr_read_ver(i, &ver);
if (rc != 0) {
continue;
}
ver_len = imgr_ver_str(&ver, vers_str[cnt]);
JSON_VALUE_STRINGN(&versions[cnt], vers_str[cnt], ver_len);
version_ptrs[cnt] = &versions[cnt];
cnt++;
}
array.jv_type = JSON_VALUE_TYPE_ARRAY;
array.jv_len = cnt;
array.jv_val.composite.values = version_ptrs;
enc = &njb->njb_enc;
json_encode_object_start(enc);
json_encode_object_entry(enc, "images", &array);
json_encode_object_finish(enc);
return 0;
}
/**
* Log encode entry
* @param log structure, arg:struct passed locally, dataptr, len
* @return 0 on success; non-zero on failure
*/
static int
log_nmgr_encode_entry(struct log *log, void *arg, void *dptr, uint16_t len)
{
struct encode_off *encode_off = (struct encode_off *)arg;
struct log_entry_hdr ueh;
char data[128];
int dlen;
struct json_value jv;
int rc;
int rsp_len;
rc = log_read(log, dptr, &ueh, 0, sizeof(ueh));
if (rc != sizeof(ueh)) {
rc = OS_ENOENT;
goto err;
}
rc = OS_OK;
/* Matching timestamps and indices for sending a log entry */
if (ueh.ue_ts < encode_off->eo_ts ||
(ueh.ue_ts == encode_off->eo_ts &&
ueh.ue_index <= encode_off->eo_index)) {
goto err;
}
dlen = min(len-sizeof(ueh), 128);
rc = log_read(log, dptr, data, sizeof(ueh), dlen);
if (rc < 0) {
rc = OS_ENOENT;
goto err;
}
data[rc] = 0;
rsp_len = encode_off->rsp_len;
/* Calculating entry len */
rsp_len += strlen(data);
/* Pre calculating MAX length of the json string */
rsp_len += (sizeof(STR(INT64_MAX)) + sizeof("{,ts:") +
sizeof(STR(UINT8_MAX)) + sizeof(",level:") +
sizeof(STR(UINT32_MAX)) + sizeof(",index:") +
sizeof(STR(UINT16_MAX)) + sizeof(",module:}"));
if (rsp_len > NMGR_MAX_MTU) {
rc = OS_ENOMEM;
goto err;
}
json_encode_object_start(encode_off->eo_encoder);
JSON_VALUE_STRINGN(&jv, data, rc);
rc = json_encode_object_entry(encode_off->eo_encoder, "msg", &jv);
if (rc) {
goto err;
}
JSON_VALUE_INT(&jv, ueh.ue_ts);
rc = json_encode_object_entry(encode_off->eo_encoder, "ts", &jv);
if (rc) {
goto err;
}
JSON_VALUE_UINT(&jv, ueh.ue_level);
rc = json_encode_object_entry(encode_off->eo_encoder, "level", &jv);
if (rc) {
goto err;
}
JSON_VALUE_UINT(&jv, ueh.ue_index);
rc = json_encode_object_entry(encode_off->eo_encoder, "index", &jv);
if (rc) {
goto err;
}
JSON_VALUE_UINT(&jv, ueh.ue_module);
rc = json_encode_object_entry(encode_off->eo_encoder, "module", &jv);
if (rc) {
goto err;
}
json_encode_object_finish(encode_off->eo_encoder);
encode_off->rsp_len += rsp_len;
return (0);
err:
return (rc);
}
static int
json_encode_value(struct json_encoder *encoder, struct json_value *jv)
{
int rc;
int i;
int len;
switch (jv->jv_type) {
case JSON_VALUE_TYPE_BOOL:
len = sprintf(encoder->je_encode_buf, "%s",
jv->jv_val.u > 0 ? "true" : "false");
encoder->je_write(encoder->je_arg, encoder->je_encode_buf, len);
break;
case JSON_VALUE_TYPE_UINT64:
len = sprintf(encoder->je_encode_buf, "%lu",
(unsigned long)jv->jv_val.u);
encoder->je_write(encoder->je_arg, encoder->je_encode_buf, len);
break;
case JSON_VALUE_TYPE_INT64:
len = sprintf(encoder->je_encode_buf, "%ld",
(long) jv->jv_val.u);
encoder->je_write(encoder->je_arg, encoder->je_encode_buf, len);
break;
case JSON_VALUE_TYPE_STRING:
encoder->je_write(encoder->je_arg, "\"", sizeof("\"")-1);
for (i = 0; i < jv->jv_len; i++) {
switch (jv->jv_val.str[i]) {
case '"':
case '/':
case '\\':
encoder->je_write(encoder->je_arg, "\\",
sizeof("\\")-1);
encoder->je_write(encoder->je_arg,
(char *) &jv->jv_val.str[i], 1);
break;
case '\t':
encoder->je_write(encoder->je_arg, "\\t",
sizeof("\\t")-1);
break;
case '\r':
encoder->je_write(encoder->je_arg, "\\r",
sizeof("\\r")-1);
break;
case '\n':
encoder->je_write(encoder->je_arg, "\\n",
sizeof("\\n")-1);
break;
case '\f':
encoder->je_write(encoder->je_arg, "\\f",
sizeof("\\f")-1);
break;
case '\b':
encoder->je_write(encoder->je_arg, "\\b",
sizeof("\\b")-1);
break;
default:
encoder->je_write(encoder->je_arg,
(char *) &jv->jv_val.str[i], 1);
break;
}
}
encoder->je_write(encoder->je_arg, "\"", sizeof("\"")-1);
break;
case JSON_VALUE_TYPE_ARRAY:
JSON_ENCODE_ARRAY_START(encoder);
for (i = 0; i < jv->jv_len; i++) {
rc = json_encode_value(encoder, jv->jv_val.composite.values[i]);
if (rc != 0) {
goto err;
}
if (i != jv->jv_len - 1) {
encoder->je_write(encoder->je_arg, ",", sizeof(",")-1);
}
}
JSON_ENCODE_ARRAY_END(encoder);
break;
case JSON_VALUE_TYPE_OBJECT:
JSON_ENCODE_OBJECT_START(encoder);
for (i = 0; i < jv->jv_len; i++) {
rc = json_encode_object_entry(encoder,
jv->jv_val.composite.keys[i],
jv->jv_val.composite.values[i]);
if (rc != 0) {
goto err;
}
}
JSON_ENCODE_OBJECT_END(encoder);
break;
default:
rc = -1;
goto err;
}
return (0);
err:
return (rc);
}