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proto.c
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proto.c
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/* SPDX-License-Identifier: BSD-3-Clause */
#define _GNU_SOURCE
#include <stdio.h>
#include "ucentral.h"
static struct blob_buf proto;
static struct blob_buf result;
static struct blob_buf action;
static char *password;
static bool state_compress = true;
static int telemetry_interval;
static struct blob_attr *telemetry_filter;
enum {
JSONRPC_VER,
JSONRPC_METHOD,
JSONRPC_ERROR,
JSONRPC_PARAMS,
JSONRPC_ID,
JSONRPC_RADIUS,
__JSONRPC_MAX,
};
static const struct blobmsg_policy jsonrpc_policy[__JSONRPC_MAX] = {
[JSONRPC_VER] = { .name = "jsonrpc", .type = BLOBMSG_TYPE_STRING },
[JSONRPC_METHOD] = { .name = "method", .type = BLOBMSG_TYPE_STRING },
[JSONRPC_ERROR] = { .name = "error", .type = BLOBMSG_TYPE_TABLE },
[JSONRPC_PARAMS] = { .name = "params", .type = BLOBMSG_TYPE_TABLE },
[JSONRPC_ID] = { .name = "id", .type = BLOBMSG_TYPE_INT32 },
[JSONRPC_RADIUS] = { .name = "radius", .type = BLOBMSG_TYPE_STRING },
};
enum {
PARAMS_SERIAL,
PARAMS_UUID,
PARAMS_COMMAND,
PARAMS_CONFIG,
PARAMS_PAYLOAD,
PARAMS_REJECTED,
PARAMS_COMPRESS,
PARAMS_COMPRESS_64,
PARAMS_COMPRESS_SZ,
__PARAMS_MAX,
};
static const struct blobmsg_policy params_policy[__PARAMS_MAX] = {
[PARAMS_SERIAL] = { .name = "serial", .type = BLOBMSG_TYPE_STRING },
[PARAMS_UUID] = { .name = "uuid", .type = BLOBMSG_TYPE_INT32 },
[PARAMS_CONFIG] = { .name = "config", .type = BLOBMSG_TYPE_TABLE },
[PARAMS_COMMAND] = { .name = "command", .type = BLOBMSG_TYPE_STRING },
[PARAMS_PAYLOAD] = { .name = "payload", .type = BLOBMSG_TYPE_TABLE },
[PARAMS_REJECTED] = { .name = "rejected", .type = BLOBMSG_TYPE_ARRAY },
[PARAMS_COMPRESS] = { .name = "compress", .type = BLOBMSG_TYPE_BOOL },
[PARAMS_COMPRESS_64] = {.name = "compress_64", .type = BLOBMSG_TYPE_STRING},
[PARAMS_COMPRESS_SZ] = {.name = "compress_sz", .type = BLOBMSG_TYPE_INT32},
};
#if 0
static void
send_blob_frag(struct blob_buf *blob)
{
#define FRAG_SZ (128 * 1024)
char *msg, fragment[FRAG_SZ + LWS_PRE], *ptr;
int len, first = 1;
int cnt = 0;
FILE *fp = fopen("/dump", "w+");
ptr = msg = blobmsg_format_json(blob->head, true);
fprintf(fp, "%s", msg);
fclose(fp);
len = strlen(msg) + 1;
ULOG_DBG("TX: %s\n", msg);
if (!websocket) {
ULOG_ERR("trying to send data while not connected\n");
return;
}
do {
int opt = LWS_WRITE_TEXT;
int frag_len = len >= FRAG_SZ ? FRAG_SZ : len;
if (first && len > FRAG_SZ)
opt |= LWS_WRITE_NO_FIN;
else if (!first && len > FRAG_SZ)
opt = LWS_WRITE_CONTINUATION | LWS_WRITE_NO_FIN;
else if (!first && len <= FRAG_SZ)
opt = LWS_WRITE_CONTINUATION;
memcpy(&fragment[LWS_PRE], ptr, frag_len);
if (lws_write(websocket, (unsigned char *)&fragment[LWS_PRE], frag_len, opt) < 0)
ULOG_ERR("failed to send message\n");
len -= FRAG_SZ;
ptr += FRAG_SZ;
first = 0;
} while(len > 0);
}
#endif
static void
send_blob(struct blob_buf *blob)
{
char *msg;
int len;
msg = blobmsg_format_json(blob->head, true);
len = strlen(msg) + 1;
msg = realloc(msg, LWS_PRE + len);
memmove(&msg[LWS_PRE], msg, len);
memset(msg, 0, LWS_PRE);
ULOG_DBG("TX: %s\n", &msg[LWS_PRE]);
if (!websocket)
ULOG_ERR("trying to send data while not connected\n");
else if (lws_write(websocket, (unsigned char *)&msg[LWS_PRE], len - 1, LWS_WRITE_TEXT) < 0)
ULOG_ERR("failed to send message\n");
free(msg);
}
static void
proto_send_blob()
{
send_blob(&proto);
}
static void*
proto_new_blob(char *method)
{
blob_buf_init(&proto, 0);
blobmsg_add_string(&proto, "jsonrpc", "2.0");
blobmsg_add_string(&proto, "method", method);
return blobmsg_open_table(&proto, "params");
}
static void
result_send_blob()
{
send_blob(&result);
}
static void*
result_new_blob(uint32_t id, time_t uuid)
{
void *m;
blob_buf_init(&result, 0);
blobmsg_add_string(&result, "jsonrpc", "2.0");
blobmsg_add_u32(&result, "id", id);
m = blobmsg_open_table(&result, "result");
blobmsg_add_string(&result, "serial", client.serial);
blobmsg_add_u64(&result, "uuid", uuid);
return m;
}
void
password_notify(char *pwd)
{
void *m;
if (password) {
memset(password, 0, strlen(password));
free(password);
password = NULL;
}
if (!websocket) {
password = strdup(pwd);
return;
}
m = proto_new_blob("deviceupdate");
blobmsg_add_string(&proto, "serial", client.serial);
blobmsg_add_string(&proto, "currentPassword", pwd);
blobmsg_close_table(&proto, m);
ULOG_DBG("xmit password\n");
proto_send_blob();
memset(pwd, 0, strlen(pwd));
}
void
connect_send(void)
{
void *m = proto_new_blob("connect");
struct stat statbuf = { };
char path[PATH_MAX] = { };
void *c;
snprintf(path, PATH_MAX, "%s/capabilities.json", UCENTRAL_CONFIG);
blobmsg_add_string(&proto, "serial", client.serial);
blobmsg_add_string(&proto, "firmware", client.firmware);
if (client.recovery)
blobmsg_add_u64(&proto, "uuid", 0);
else
blobmsg_add_u64(&proto, "uuid", uuid_active ? uuid_active : 1);
if (client.boot_cause) {
blobmsg_add_string(&proto, "reason", client.boot_cause);
client.boot_cause = NULL;
} else {
blobmsg_add_string(&proto, "reason", "socket");
}
if (password) {
blobmsg_add_string(&proto, "password", password);
memset(password, 0, strlen(password));
free(password);
password = NULL;
}
if (!stat("/etc/ucentral/ucentral.defaults", &statbuf)) {
c = blobmsg_open_table(&proto, "defaults");
if (!blobmsg_add_json_from_file(&proto, "/etc/ucentral/ucentral.defaults")) {
log_send("failed to load defaults", LOG_ERR);
return;
}
blobmsg_close_table(&proto, c);
}
if (!stat("/tmp/udhcpc-vsi.json", &statbuf)) {
c = blobmsg_open_table(&proto, "udhcpc-vsi");
if (!blobmsg_add_json_from_file(&proto, "/tmp/udhcpc-vsi.json")) {
log_send("failed to load udhcpc-vsi", LOG_WARNING);
}
blobmsg_close_table(&proto, c);
}
c = blobmsg_open_table(&proto, "capabilities");
if (!blobmsg_add_json_from_file(&proto, path)) {
log_send("failed to load capabilities", LOG_ERR);
return;
}
blobmsg_close_table(&proto, c);
if (!stat("/etc/ucentral/restrictions.json", &statbuf))
blobmsg_add_u8(&proto, "restricted", 1);
blobmsg_close_table(&proto, m);
ULOG_DBG("xmit connect\n");
proto_send_blob();
}
void
ping_send(void)
{
void *m = proto_new_blob("ping");
blobmsg_add_string(&proto, "serial", client.serial);
if (uuid_active != uuid_latest) {
blobmsg_add_u64(&proto, "active", uuid_active);
blobmsg_add_u64(&proto, "uuid", uuid_latest);
} else
blobmsg_add_u64(&proto, "uuid", uuid_latest);
blobmsg_close_table(&proto, m);
ULOG_DBG("xmit ping\n");
proto_send_blob();
}
/*static void
pending_send(void)
{
void *m = proto_new_blob("cfgpending");
if (uuid_latest && uuid_active == uuid_latest)
return;
blobmsg_add_string(&proto, "serial", client.serial);
blobmsg_add_u64(&proto, "active", uuid_active);
blobmsg_add_u64(&proto, "uuid", uuid_latest);
blobmsg_close_table(&proto, m);
ULOG_DBG("xmit pending\n");
proto_send_blob();
}*/
void
raw_send(struct blob_attr *a)
{
enum {
RAW_METHOD,
RAW_PARAMS,
__RAW_MAX,
};
static const struct blobmsg_policy raw_policy[__RAW_MAX] = {
[RAW_METHOD] = { .name = "method", .type = BLOBMSG_TYPE_STRING },
[RAW_PARAMS] = { .name = "params", .type = BLOBMSG_TYPE_TABLE },
};
struct blob_attr *tb[__PARAMS_MAX] = {};
struct blob_attr *b;
void *m;
size_t rem;
blobmsg_parse(raw_policy, __RAW_MAX, tb, blob_data(a), blob_len(a));
if (!tb[RAW_METHOD] || !tb[RAW_PARAMS])
return;
m = proto_new_blob(blobmsg_get_string(tb[RAW_METHOD]));
blobmsg_add_string(&proto, "serial", client.serial);
blobmsg_add_u64(&proto, "uuid", uuid_active);
blobmsg_for_each_attr(b, tb[RAW_PARAMS], rem)
blobmsg_add_blob(&proto, b);
blobmsg_close_table(&proto, m);
proto_send_blob();
}
void
event_send(struct blob_attr *a, time_t time)
{
struct blob_attr *b;
void *m, *d, *e, *p;
size_t rem;
m = proto_new_blob("event");
blobmsg_add_string(&proto, "serial", client.serial);
d = blobmsg_open_table(&proto, "data");
e = blobmsg_open_array(&proto, "event");
blobmsg_add_u64(&proto, NULL, time);
p = blobmsg_open_table(&proto, NULL);
blobmsg_for_each_attr(b, a, rem)
blobmsg_add_blob(&proto, b);
blobmsg_close_table(&proto, p);
blobmsg_close_array(&proto, e);
blobmsg_close_table(&proto, d);
blobmsg_close_table(&proto, m);
proto_send_blob();
}
void
radius_send(struct blob_attr *a)
{
enum {
RADIUS_TYPE,
RADIUS_DATA,
__RADIUS_MAX,
};
static const struct blobmsg_policy radius_policy[__RADIUS_MAX] = {
[RADIUS_TYPE] = { .name = "radius", .type = BLOBMSG_TYPE_STRING },
[RADIUS_DATA] = { .name = "data", .type = BLOBMSG_TYPE_STRING },
};
struct blob_attr *tb[__PARAMS_MAX] = {};
blobmsg_parse(radius_policy, __RADIUS_MAX, tb, blob_data(a), blob_len(a));
if (!tb[RADIUS_TYPE] || !tb[RADIUS_DATA])
return;
blob_buf_init(&proto, 0);
blobmsg_add_string(&proto, "radius", blobmsg_get_string(tb[RADIUS_TYPE]));
blobmsg_add_string(&proto, "data", blobmsg_get_string(tb[RADIUS_DATA]));
proto_send_blob();
}
void
result_send(uint32_t id, struct blob_attr *a, uint32_t _uuid)
{
time_t uuid = (time_t) _uuid;
struct blob_attr *b;
void *m, *s;
size_t rem;
m = result_new_blob(id, uuid ? uuid : uuid_active);
s = blobmsg_open_table(&result, "status");
blobmsg_for_each_attr(b, a, rem)
blobmsg_add_blob(&result, b);
blobmsg_close_table(&result, s);
blobmsg_close_table(&result, m);
result_send_blob();
}
static char *stats_request_uuid;
static char *
comp(char *src, int len, int *rlen)
{
uLongf sourceLen = len;
uLongf destLen = compressBound(len);
unsigned char *dest = malloc(destLen);
memset(dest, 0, destLen);
if (compress(dest, &destLen, (unsigned char *)src, sourceLen) != Z_OK) {
printf("compress failed\n");
free(dest);
return NULL;
}
*rlen = destLen;
return (char *)dest;
}
static char *
decomp(char *src, int len)
{
uLong ucompSize = len + 1;
uLong compSize = compressBound(ucompSize);
char *dest = malloc(ucompSize);
if (uncompress((Bytef *)dest, &ucompSize, (Bytef *)src, compSize) != Z_OK)
{
free(dest);
return NULL;
};
return (char *)dest;
}
static char *
b64(char *src, int len)
{
char *dst;
int ret;
if (!src)
return NULL;
dst = malloc(len * 4);
ret = b64_encode(src, len, dst, len * 4);
if (ret < 1) {
free(dst);
return NULL;
}
return dst;
}
static char *
decode_b64(char *src, int len)
{
char *dst;
int ret;
if (!src)
return NULL;
dst = malloc(len);
ret = b64_decode(src, dst, len);
if (ret < 1)
{
free(dst);
return NULL;
}
return dst;
}
static void
decode_and_inflate(struct blob_attr **encoded_param, struct blob_attr *ret[__JSONRPC_MAX]) {
int compress_sz = blobmsg_get_u32(encoded_param[PARAMS_COMPRESS_SZ]);
char *cp64 = blobmsg_get_string(encoded_param[PARAMS_COMPRESS_64]);
char *cp = decode_b64(cp64, compress_sz);
if (cp == NULL) {
ULOG_ERR("base64 decode failed for message\n");
ret = NULL;
return;
}
char *params = decomp(cp, compress_sz);
if (params == NULL) {
ULOG_ERR("failed to uncompress message\n");
ret = NULL;
return;
}
static struct blob_buf pbuf;
blob_buf_init(&pbuf, 0);
void *c;
c = blobmsg_open_table(&pbuf, "params");
blobmsg_add_json_from_string(&pbuf, params);
free(params);
blobmsg_close_table(&pbuf, c);
blobmsg_parse(jsonrpc_policy, __JSONRPC_MAX, ret, blob_data(pbuf.head), blob_len(pbuf.head));
}
static void
stats_add_request_uuid(struct blob_buf *b)
{
if (!stats_request_uuid)
return;
blobmsg_add_string(b, "request_uuid", stats_request_uuid);
free(stats_request_uuid);
stats_request_uuid = NULL;
}
static char *
stats_get_string(struct blob_attr *a)
{
struct blob_attr *b;
size_t rem;
blob_buf_init(&result, 0);
stats_add_request_uuid(&result);
blobmsg_for_each_attr(b, a, rem)
blobmsg_add_blob(&result, b);
return blobmsg_format_json(result.head, true);
}
void
stats_send(struct blob_attr *a)
{
struct blob_attr *b;
void *c;
size_t rem;
blob_buf_init(&proto, 0);
blobmsg_add_string(&proto, "jsonrpc", "2.0");
blobmsg_add_string(&proto, "method", "state");
c = blobmsg_open_table(&proto, "params");
if (state_compress && blobmsg_data_len(a) >= 2 * 1024) {
char *source = stats_get_string(a);
int comp_len = 0, orig_len = strlen(source);
char *compressed = comp(source, orig_len, &comp_len);
char *encoded = b64(compressed, comp_len);
free(compressed);
free(source);
if (encoded) {
blobmsg_add_string(&proto, "compress_64", encoded);
blobmsg_add_u32(&proto, "compress_sz", orig_len);
free(encoded);
} else {
ULOG_ERR("failed to compress stats");
return;
}
} else {
stats_add_request_uuid(&proto);
blobmsg_for_each_attr(b, a, rem)
blobmsg_add_blob(&proto, b);
}
blobmsg_close_table(&proto, c);
proto_send_blob();
}
void
log_send(char *message, int severity)
{
void *m = proto_new_blob("log");
blobmsg_add_string(&proto, "serial", client.serial);
blobmsg_add_string(&proto, "log", message);
blobmsg_add_u32(&proto, "severity", severity);
blobmsg_close_table(&proto, m);
ULOG_ERR("%s\n", message);
proto_send_blob();
}
static char *health_request_uuid;
void
health_send(uint32_t sanity, struct blob_attr *a)
{
void *m = proto_new_blob("healthcheck");
struct blob_attr *b;
void *c;
size_t rem;
blobmsg_add_string(&proto, "serial", client.serial);
blobmsg_add_u64(&proto, "uuid", uuid_active);
if (health_request_uuid) {
blobmsg_add_string(&proto, "request_uuid", health_request_uuid);
free(health_request_uuid);
health_request_uuid = NULL;
}
blobmsg_add_u32(&proto, "sanity", sanity);
c = blobmsg_open_table(&proto, "data");
blobmsg_for_each_attr(b, a, rem)
blobmsg_add_blob(&proto, b);
blobmsg_close_table(&proto, c);
blobmsg_close_table(&proto, m);
proto_send_blob();
}
void
rebootlog_send(char *type, struct blob_attr *a)
{
void *m = proto_new_blob("rebootLog");
struct blob_attr *b;
void *c;
size_t rem;
blobmsg_add_string(&proto, "serial", client.serial);
blobmsg_add_u64(&proto, "uuid", uuid_active);
blobmsg_add_string(&proto, "type", type);
blobmsg_add_u64(&proto, "date", time(NULL));
c = blobmsg_open_array(&proto, "info");
blobmsg_for_each_attr(b, a, rem)
blobmsg_add_blob(&proto, b);
blobmsg_close_array(&proto, c);
blobmsg_close_table(&proto, m);
proto_send_blob();
}
void
result_send_error(uint32_t error, char *text, uint32_t retcode, uint32_t id)
{
void *c, *s;
ULOG_ERR("%s/(%d)\n", text, retcode);
c = result_new_blob(id, uuid_active);
s = blobmsg_open_table(&result, "status");
blobmsg_add_u32(&result, "error", error);
blobmsg_add_string(&result, "text", text);
blobmsg_add_u32(&result, "resultCode", retcode);
blobmsg_close_table(&result, s);
blobmsg_close_table(&result, c);
result_send_blob();
}
void
venue_broadcast_send(struct blob_attr *payload)
{
struct blob_attr *b;
void *m, *d;
size_t rem;
m = proto_new_blob("venue_broadcast");
blobmsg_add_string(&proto, "serial", client.serial);
blobmsg_add_u64(&proto, "timestamp", time(NULL));
d = blobmsg_open_table(&proto, "data");
blobmsg_for_each_attr(b, payload, rem)
blobmsg_add_blob(&proto, b);
blobmsg_close_table(&proto, d);
blobmsg_close_table(&proto, m);
proto_send_blob();
}
void
configure_reply(uint32_t error, char *text, time_t uuid, uint32_t id)
{
struct blob_attr *b;
void *c, *s, *r;
size_t rem;
if (!id)
return;
c = result_new_blob(id, uuid);
s = blobmsg_open_table(&result, "status");
blobmsg_add_string(&result, "text", text);
if (blob_len(rejected.head)) {
struct blob_attr *tb[__PARAMS_MAX] = {};
blobmsg_parse(params_policy, __PARAMS_MAX, tb, blob_data(rejected.head),
blob_len(rejected.head));
if (tb[PARAMS_REJECTED]) {
r = blobmsg_open_array(&result, "rejected");
blobmsg_for_each_attr(b, tb[PARAMS_REJECTED], rem)
blobmsg_add_blob(&result, b);
blobmsg_close_array(&result, r);
}
if (!error)
error = 1;
}
blobmsg_add_u32(&result, "error", error);
blobmsg_close_table(&result, s);
blobmsg_close_table(&result, c);
result_send_blob();
}
static void
configure_handle(struct blob_attr **rpc)
{
struct blob_attr *tb[__PARAMS_MAX] = {};
char *path = NULL;
uint32_t id = 0;
char *cfg;
FILE *fp;
blobmsg_parse(params_policy, __PARAMS_MAX, tb, blobmsg_data(rpc[JSONRPC_PARAMS]),
blobmsg_data_len(rpc[JSONRPC_PARAMS]));
if (rpc[JSONRPC_ID])
id = blobmsg_get_u32(rpc[JSONRPC_ID]);
if (tb[PARAMS_COMPRESS_64] && tb[PARAMS_COMPRESS_SZ])
{
ULOG_INFO("configuration message is compressed, decode and uncompress\n");
struct blob_attr *tb2[__JSONRPC_MAX] = {};
decode_and_inflate(tb,tb2);
if (!tb2[JSONRPC_PARAMS])
{
ULOG_ERR("after decode and uncompress, configure message is missing parameters\n");
configure_reply(1, "after decode and uncompress, configure message is missing parameters", 0, id);
return;
}
blobmsg_parse(params_policy, __PARAMS_MAX, tb, blobmsg_data(tb2[JSONRPC_PARAMS]),
blobmsg_data_len(tb2[JSONRPC_PARAMS]));
}
if (!tb[PARAMS_UUID] || !tb[PARAMS_SERIAL] || !tb[PARAMS_CONFIG]) {
ULOG_ERR("configure message is missing parameters\n");
configure_reply(1, "invalid parameters", 0, id);
return;
}
if (tb[PARAMS_COMPRESS])
state_compress = blobmsg_get_bool(tb[PARAMS_COMPRESS]);
if (asprintf(&path, "/etc/ucentral/ucentral.cfg.%010lu", (unsigned long int)blobmsg_get_u32(tb[PARAMS_UUID])) < 0) {
configure_reply(1, "failed to store the configuration", 0, id);
return;
}
fp = fopen(path, "w+");
free(path);
if (!fp) {
configure_reply(1, "failed to store the configuration", 0, id);
return;
}
cfg = blobmsg_format_json(tb[PARAMS_CONFIG], true);
if (!cfg) {
fclose(fp);
configure_reply(1, "failed to store the configuration", 0, id);
return;
}
fprintf(fp, "%s", cfg);
free(cfg);
fclose(fp);
config_init(1, id);
}
static void
action_handle(struct blob_attr **rpc, char *command, int reply, int delay, int admin, int timeout)
{
struct blob_attr *tb[__PARAMS_MAX] = {};
uint32_t id = 0;
blobmsg_parse(params_policy, __PARAMS_MAX, tb, blobmsg_data(rpc[JSONRPC_PARAMS]),
blobmsg_data_len(rpc[JSONRPC_PARAMS]));
if (rpc[JSONRPC_ID])
id = blobmsg_get_u32(rpc[JSONRPC_ID]);
if (!tb[PARAMS_SERIAL]) {
result_send_error(1, "invalid parameters", 1, id);
return;
}
blob_buf_init(&action, 0);
blobmsg_add_string(&action, "command", command);
blobmsg_add_u32(&action, "delay", delay);
blobmsg_add_u32(&action, "timeout", timeout ? timeout : 60 * 10);
if (rpc[JSONRPC_PARAMS]) {
void *c = blobmsg_open_table(&action, "payload");
struct blob_attr *b;
size_t rem;
blobmsg_for_each_attr(b, rpc[JSONRPC_PARAMS], rem)
blobmsg_add_blob(&action, b);
blobmsg_close_table(&action, c);
}
if (cmd_run(action.head, id, admin)) {
result_send_error(1, "failed to queue command", 1, id);
return;
}
if (reply)
result_send_error(0, "triggered command action", 0, id);
}
static void
error_handle(struct blob_attr **rpc)
{
enum {
ERROR_CODE,
ERROR_MESSAGE,
__ERROR_MAX,
};
static const struct blobmsg_policy error_policy[__ERROR_MAX] = {
[ERROR_CODE] = { .name = "code", .type = BLOBMSG_TYPE_INT32 },
[ERROR_MESSAGE] = { .name = "message", .type = BLOBMSG_TYPE_STRING },
};
struct blob_attr *tb[__ERROR_MAX] = {};
uint32_t id = 0;
blobmsg_parse(error_policy, __ERROR_MAX, tb, blobmsg_data(rpc[JSONRPC_ERROR]),
blobmsg_data_len(rpc[JSONRPC_ERROR]));
if (!tb[ERROR_CODE] || !tb[ERROR_MESSAGE]) {
printf("%p %p\n", tb[ERROR_CODE], tb[ERROR_MESSAGE]);
result_send_error(1, "invalid parameters", 1, id);
return;
}
ULOG_ERR("error %d - %s\n", blobmsg_get_u32(tb[ERROR_CODE]), blobmsg_get_string(tb[ERROR_MESSAGE]));
}
static void
request_handle(struct blob_attr **rpc)
{
enum {
REQUEST_MESSAGE,
REQUEST_UUID,
__REQUEST_MAX,
};
static const struct blobmsg_policy request_policy[__REQUEST_MAX] = {
[REQUEST_MESSAGE] = { .name = "message", .type = BLOBMSG_TYPE_STRING },
[REQUEST_UUID] = { .name = "request_uuid", .type = BLOBMSG_TYPE_STRING },
};
struct blob_attr *tb[__REQUEST_MAX] = {};
char *message, *uuid;
uint32_t id = 0;
int ret;
blobmsg_parse(request_policy, __REQUEST_MAX, tb, blobmsg_data(rpc[JSONRPC_PARAMS]),
blobmsg_data_len(rpc[JSONRPC_PARAMS]));
if (rpc[JSONRPC_ID])
id = blobmsg_get_u32(rpc[JSONRPC_ID]);
if (!tb[REQUEST_MESSAGE] || !tb[REQUEST_UUID]) {
result_send_error(1, "invalid parameters", 1, id);
return;
}
message = blobmsg_get_string(tb[REQUEST_MESSAGE]);
uuid = blobmsg_get_string(tb[REQUEST_UUID]);
if (!strcmp(message, "state")) {
stats_request_uuid = strdup(uuid);
ret = system("/etc/init.d/ustats restart");
if (ret) {
result_send_error(1, "failed to execute ustats", ret, id);
return;
}
} else if (!strcmp(message, "healthcheck")) {
health_request_uuid = strdup(uuid);
ret = system("/etc/init.d/uhealth restart");
if (ret) {
result_send_error(1, "failed to execute uhealth", ret, id);
return;
}
} else {
result_send_error(1, "invalid parameters", 1, id);
return;
}
result_send_error(0, "success", 0, id);
}
static void
leds_handle(struct blob_attr **rpc)
{
enum {
LED_DURATION,
LED_PATTERN,
LED_ENDLESS,
__LED_MAX,
};
static const struct blobmsg_policy led_policy[__LED_MAX] = {
[LED_DURATION] = { .name = "duration", .type = BLOBMSG_TYPE_INT32 },
[LED_PATTERN] = { .name = "pattern", .type = BLOBMSG_TYPE_STRING },
[LED_ENDLESS] = { .name = "endless", .type = BLOBMSG_TYPE_BOOL },
};
struct blob_attr *tb[__LED_MAX] = {};
uint32_t duration = 0;
uint32_t id = 0;
blobmsg_parse(led_policy, __LED_MAX, tb, blobmsg_data(rpc[JSONRPC_PARAMS]),
blobmsg_data_len(rpc[JSONRPC_PARAMS]));
if (rpc[JSONRPC_ID])
id = blobmsg_get_u32(rpc[JSONRPC_ID]);
if (tb[LED_DURATION])
duration = blobmsg_get_u32(tb[LED_DURATION]);
if (tb[LED_ENDLESS] && blobmsg_get_bool(tb[LED_ENDLESS]))
duration = 0xffff;
if (!strcmp(blobmsg_get_string(tb[LED_PATTERN]), "blink")) {
result_send_error(0, "success", 0, id);
ubus_blink_leds(duration);
return;
}
ubus_blink_leds(0);
action_handle(rpc, "leds", 1, 1, 1, 0);
}
static void
event_handle(struct blob_attr **rpc)
{
enum {
REALTIME_TYPES,
__REALTIME_MAX,
};
static const struct blobmsg_policy event_policy[__REALTIME_MAX] = {
[REALTIME_TYPES] = { .name = "types", .type = BLOBMSG_TYPE_ARRAY },
};
struct blob_attr *tb[__REALTIME_MAX] = {};
struct blob_attr *b;
uint32_t id = 0;
void *m, *s;
size_t rem;
blobmsg_parse(event_policy, __REALTIME_MAX, tb, blobmsg_data(rpc[JSONRPC_PARAMS]),
blobmsg_data_len(rpc[JSONRPC_PARAMS]));
if (rpc[JSONRPC_ID])
id = blobmsg_get_u32(rpc[JSONRPC_ID]);
m = result_new_blob(id, uuid_active);
s = blobmsg_open_table(&result, "status");
blobmsg_add_u32(&result, "error", 0);
blobmsg_add_string(&result, "text", "Success");
blobmsg_close_table(&result, s);
s = blobmsg_open_table(&result, "events");
if (tb[REALTIME_TYPES])
blobmsg_for_each_attr(b, tb[REALTIME_TYPES], rem) {
if (blobmsg_type(b) != BLOBMSG_TYPE_STRING)
continue;
event_dump(&result, blobmsg_get_string(b), true);
}
else
event_dump_all(&result);
blobmsg_close_table(&result, s);
blobmsg_close_table(&result, m);
result_send_blob();
}
void
telemetry_periodic(void)
{
void *m, *s;
int count = 0;
m = proto_new_blob("telemetry");
blobmsg_add_string(&proto, "serial", client.serial);
blobmsg_add_u8(&proto, "adhoc", 1);
s = blobmsg_open_table(&proto, "data");
count += event_dump(&proto, "dhcp-snooping", true);
count += event_dump(&proto, "wifi-frames", true);
count += event_dump(&proto, "event", true);
blobmsg_close_table(&proto, s);
blobmsg_close_table(&proto, m);
if (count)
proto_send_blob();
}
static void
telemetry_complete_cb(struct task *t, time_t uuid, uint32_t id, int ret)
{
struct blob_attr *b;
void *m, *s;
size_t rem;
m = proto_new_blob("telemetry");
blobmsg_add_string(&proto, "serial", client.serial);
s = blobmsg_open_table(&proto, "data");
blobmsg_for_each_attr(b, telemetry_filter, rem) {
if (blobmsg_type(b) != BLOBMSG_TYPE_STRING)
continue;
event_dump(&proto, blobmsg_get_string(b), true);
}
blobmsg_close_table(&proto, s);
blobmsg_close_table(&proto, m);
proto_send_blob();
}
static void
telemetry_run_cb(time_t uuid, uint32_t _id)
{
ULOG_INFO("running telemetry task\n");
execlp("/usr/share/ucentral/telemetry.uc", "/usr/share/ucentral/telemetry.uc", NULL);
exit(1);
}
struct task telemetry_task = {
.run_time = 60,
.run = telemetry_run_cb,
.complete = telemetry_complete_cb,
};
static void
telemetry_handle(struct blob_attr **rpc)
{
enum {
TELEMETRY_INTERVAL,
TELEMETRY_TYPES,
__TELEMETRY_MAX,
};
static const struct blobmsg_policy telemetry_policy[__TELEMETRY_MAX] = {
[TELEMETRY_INTERVAL] = { .name = "interval", .type = BLOBMSG_TYPE_INT32 },
[TELEMETRY_TYPES] = { .name = "types", .type = BLOBMSG_TYPE_ARRAY },
};
struct blob_attr *tb[__TELEMETRY_MAX] = {};
uint32_t id = 0;
void *m, *s;
int err = 0;
blobmsg_parse(telemetry_policy, __TELEMETRY_MAX, tb, blobmsg_data(rpc[JSONRPC_PARAMS]),
blobmsg_data_len(rpc[JSONRPC_PARAMS]));
if (rpc[JSONRPC_ID])
id = blobmsg_get_u32(rpc[JSONRPC_ID]);
if (tb[TELEMETRY_INTERVAL])