int main (int argc, const char *argv[]) {
const char *tstr = NULL;
var *env = var_alloc();
var *env_collector = var_get_dict_forkey (env, "collector");
var *env_colors = var_get_array_forkey (env, "colors");
var_set_int_forkey (env_collector, "listenport", 3333);
var_set_str_forkey (env_collector, "address", "127.0.0.1");
var_set_str_forkey (env_collector, "key", "secret");
var_clear_array (env_colors);
var_add_str (env_colors, "red");
var_add_str (env_colors, "green");
var_add_str (env_colors, "blue");
assert (var_get_int_forkey (env_collector, "listenport") == 3333);
assert (tstr = var_get_str_forkey (env_collector, "address"));
assert (strcmp (tstr, "127.0.0.1") == 0);
assert (tstr = var_get_str_forkey (env_collector, "key"));
assert (strcmp (tstr, "secret") == 0);
assert (var_get_count (env_collector) == 3);
assert (tstr = var_get_str_atindex (env_colors, 0));
assert (strcmp (tstr, "red") == 0);
assert (tstr = var_get_str_atindex (env_colors, 1));
assert (strcmp (tstr, "green") == 0);
assert (tstr = var_get_str_atindex (env_colors, 2));
assert (strcmp (tstr, "blue") == 0);
time_t tnow = time (NULL);
var_set_time_forkey (env, "nowtime", tnow);
assert (var_get_time_forkey (env, "nowtime") == tnow);
var_set_unixtime_forkey (env, "unixtime", tnow);
assert (var_get_time_forkey (env, "unixtime") == tnow);
uuid uuid_in = uuidgen();
var_set_uuid_forkey (env, "myuuid", uuid_in);
uuid uuid_out = var_get_uuid_forkey (env, "myuuid");
assert (uuidcmp (uuid_in, uuid_out));
var_new_generation (env);
var_set_int_forkey (env_collector, "listenport", 3333);
var_set_str_forkey (env_collector, "address", "192.168.1.1");
var_clear_array (env_colors);
var_add_str (env_colors, "red");
var_add_str (env_colors, "green");
var_add_str (env_colors, "blue");
var *lport, *addr, *key;
lport = var_find_key (env_collector, "listenport");
addr = var_find_key (env_collector, "address");
key = var_find_key (env_collector, "key");
assert (lport);
assert (addr);
assert (key);
/* collector.listenport should be unchanged from first generation */
assert (lport->generation == env->generation);
assert (lport->lastmodified < env->generation);
assert (lport->firstseen == lport->lastmodified);
/* collector.addr should be changed this generation */
assert (addr->generation == env->generation);
assert (addr->lastmodified == env->generation);
assert (addr->firstseen == env->firstseen);
/* colors should be changed this generation */
assert (env_colors->generation == env->generation);
assert (env_colors->lastmodified == env->generation);
assert (env_colors->firstseen == env->firstseen);
/* collector.key should be stale */
assert (key->generation < env->generation);
var_clean_generation (env);
/* collector.key should now be deleted */
key = var_find_key (env_collector, "key");
assert (key == NULL);
return 0;
}
/** Daemon main run loop. */
int daemon_main (int argc, const char *argv[]) {
const char *buf;
size_t sz;
if (strcmp (APP.logpath, "@syslog") == 0) {
log_open_syslog ("opticon-agent", APP.loglevel);
}
else {
log_open_file (APP.logpath, APP.loglevel);
}
probelist_start (&APP.probes);
APP.resender = authresender_create (APP.transport);
time_t tlast = time (NULL);
time_t nextslow = tlast + 5;
time_t nextsend = tlast + 10;
time_t lastkeyrotate = 0;
int slowround = 0;
log_info ("Daemonized");
while (1) {
time_t tnow = tlast = time (NULL);
slowround = 0;
/* If a slow round is due at this time, use the excuse to send an
authentication packet */
if (nextslow <= tnow) {
slowround = 1;
uint32_t sid = APP.auth.sessionid;
if (! sid) sid = gen_sessionid();
log_debug ("Authenticating session <%08x>", sid);
APP.auth.sessionid = sid;
APP.auth.serial = 0;
APP.auth.tenantid = APP.tenantid;
APP.auth.hostid = APP.hostid;
/* Only rotate the AES key every half hour */
if (tnow - lastkeyrotate > 1800) {
APP.auth.sessionkey = aeskey_create();
lastkeyrotate = tnow;
}
APP.auth.tenantkey = APP.collectorkey;
/* Dispatch */
ioport *io_authpkt = ioport_wrap_authdata (&APP.auth,
gen_serial());
sz = ioport_read_available (io_authpkt);
buf = ioport_get_buffer (io_authpkt);
outtransport_send (APP.transport, (void*) buf, sz);
authresender_schedule (APP.resender, buf, sz);
ioport_close (io_authpkt);
/* Schedule next slow round */
nextslow = nextslow + 300;
}
log_debug ("Poking probes");
probe *p = APP.probes.first;
time_t wakenext = tnow + 300;
/* Go over the probes to figure out whether we should kick them */
while (p) {
time_t firewhen = p->lastpulse + p->interval;
if (firewhen <= tnow) {
conditional_signal (&p->pulse);
p->lastpulse = tnow;
}
/* Figure out whether the next event for this probe is sooner
than the next wake-up time we determined so far */
if (p->lastpulse + p->interval < wakenext) {
wakenext = p->lastpulse + p->interval;
}
p = p->next;
}
int collected = 0;
int ncollected = 0;
host *h = host_alloc();
var *vnagios = var_alloc();
var *vchkwarn = var_get_array_forkey (vnagios, "chkwarn");
var *vchkalert = var_get_array_forkey (vnagios, "chkalert");
/* If we're in a slow round, we already know we're scheduled. Otherwise,
see if the next scheduled moment for sending a (fast lane) packet
has passed. */
if (slowround || (tnow >= nextsend)) {
h->uuid = APP.hostid;
host_begin_update (h, time (NULL));
if (! slowround) while (nextsend <= tnow) nextsend += 60;
log_debug ("Collecting probes");
/* Go over the probes again, picking up the ones relevant to the
current round being performed */
p = APP.probes.first;
while (p) {
pthread_mutex_lock (&p->vlock);
volatile var *v = p->vcurrent;
/* See if data for this probe has been collected since the last kick */
if (v && (p->lastdispatch <= p->lastreply)) {
/* Filter probes for the current lane */
if ((slowround && p->interval>60) ||
((!slowround) && p->interval<61)) {
log_debug ("Collecting <%s>", p->call);
if (p->type == PROBE_NAGIOS) {
/* Check for alert/warning state and
* summarize before adding to host struct */
int pstatus = var_get_int_forkey ((var*)v, "status");
if (pstatus) {
var *arr;
switch (pstatus) {
case 1:
var_add_str (vchkwarn, p->id);
break;
default:
var_add_str (vchkalert, p->id);
break;
}
collected++;
}
ncollected++;
}
else {
host_import (h, (var *) v);
collected++;
}
p->lastdispatch = tnow;
}
}
else {
if (tnow - p->lastreply > (2*(p->interval))) {
log_warn ("Probe <%s> seems stuck after %i seconds",
p->call, tnow - p->lastreply);
}
}
pthread_mutex_unlock (&p->vlock);
p = p->next;
}
}
/* Add the chk tree with nagios self-checks to the data */
if (ncollected) host_import (h, vnagios);
/* If any data was collected, encode it */
if (collected) {
log_debug ("Encoding probes");
ioport *encoded = ioport_create_buffer (NULL, 4096);
if (! encoded) {
log_warn ("Error creating ioport");
ioport_close (encoded);
host_delete (h);
continue;
}
if (! codec_encode_host (APP.codec, encoded, h)) {
log_warn ("Error encoding host");
ioport_close (encoded);
host_delete (h);
continue;
}
if (APP.dumppath) {
FILE *pktf = fopen (APP.dumppath,"a");
fprintf (pktf, "\n--- %s ---\n\n", slowround?"Slow":"Fast");
ioport *dump = ioport_create_filewriter (pktf);
log_debug ("dump %llx", dump);
codec *jsonc = codec_create_json();
log_debug ("jsonc %llx", jsonc);
codec_encode_host (jsonc, dump, h);
codec_release (jsonc);
ioport_close (dump);
fclose (pktf);
}
log_debug ("Encoded %i bytes", ioport_read_available (encoded));
ioport *wrapped = ioport_wrap_meterdata (APP.auth.sessionid,
gen_serial(),
APP.auth.sessionkey,
encoded);
if (! wrapped) {
log_error ("Error wrapping");
ioport_close (encoded);
host_delete (h);
continue;
}
sz = ioport_read_available (wrapped);
buf = ioport_get_buffer (wrapped);
/* Send it off into space */
outtransport_send (APP.transport, (void*) buf, sz);
log_info ("%s lane packet sent: %i bytes",
slowround ? "Slow":"Fast", sz);
ioport_close (wrapped);
ioport_close (encoded);
}
/* Done with the host object */
host_delete (h);
/* Figure out what the next scheduled wake-up time is */
tnow = time (NULL);
if (nextsend < wakenext) wakenext = nextsend;
if (nextslow < wakenext) wakenext = nextslow;
if (wakenext > tnow) {
log_debug ("Sleeping for %i seconds", (wakenext-tnow));
sleep (wakenext-tnow);
}
}
return 666;
}
/** Internal state machine for parsing a JSON-like configuration
* text. Recurses on itself for new levels of hierarchy.
* \param v The var at this cursor level.
* \param buf The cursor (inout)
* \param st The state to start out with.
*/
static int var_parse_json_level (var *v, const char **buf,
parse_state st, int depth) {
if (depth > default_max_json_depth) {
sprintf (LAST_PARSE_ERROR, "Nested to deep");
return 0;
}
const char *c = *buf;
var *vv = NULL;
char keybuf[4096];
int keybuf_pos = 0;
char valuebuf[4096];
int valuebuf_pos = 0;
int value_nondigits = 0;
int value_dots = 0;
parse_state stnext;
while (*c) {
switch (st) {
case PSTATE_BEGINNING:
if (*c == '{') {
st = PSTATE_DICT_WAITKEY;
break;
}
/* intentional fall-through */
case PSTATE_DICT_WAITKEY:
if (*c == '#') {
stnext = st;
st = PSTATE_COMMENT;
break;
}
if (isspace (*c)) break;
if (*c == ',') break;
if (*c == '}') {
*buf = c;
return 1;
}
if (*c == '\"') st = PSTATE_DICT_KEY_QUOTED;
else {
if (! strchr (VALIDUNQUOTED, *c)) {
sprintf (LAST_PARSE_ERROR, "Invalid char for "
"key: '%c'", *c);
return 0;
}
--c;
st = PSTATE_DICT_KEY;
}
keybuf_pos = 0;
keybuf[0] = 0;
valuebuf_pos = 0;
valuebuf[0] = 0;
break;
case PSTATE_DICT_KEY:
if (*c == '#') {
stnext = PSTATE_DICT_WAITVALUE;
st = PSTATE_COMMENT;
break;
}
if (isspace (*c)) {
st = PSTATE_DICT_WAITVALUE;
break;
}
if (*c == '{') {
*buf = c+1;
vv = var_get_dict_forkey (v, keybuf);
if (! vv) {
sprintf (LAST_PARSE_ERROR, "Couldn't get dict "
"for key '%s'", keybuf);
return 0;
}
if (!var_parse_json_level (vv, buf,
PSTATE_DICT_WAITKEY, depth+1)) {
return 0;
}
c = *buf;
st = PSTATE_DICT_WAITKEY;
break;
}
if (*c == '[') {
*buf = c+1;
vv = var_get_array_forkey (v, keybuf);
if (! vv) {
sprintf (LAST_PARSE_ERROR, "Couldn't get array "
"for key '%s'", keybuf);
return 0;
}
var_clear_array (vv);
if (!var_parse_json_level (vv, buf, PSTATE_ARRAY_WAITVALUE,
depth+1)) {
return 0;
}
c = *buf;
st = PSTATE_DICT_WAITKEY;
break;
}
if (*c == ':') {
st = PSTATE_DICT_WAITVALUE;
break;
}
if (! strchr (VALIDUNQUOTED, *c)) {
sprintf (LAST_PARSE_ERROR, "Invalid character in "
"value '%c'", *c);
return 0;
}
if (keybuf_pos >= 4095) return 0;
keybuf[keybuf_pos++] = *c;
keybuf[keybuf_pos] = 0;
break;
case PSTATE_DICT_KEY_QUOTED:
if (*c == '\"') {
st = PSTATE_DICT_WAITVALUE;
break;
}
if (*c == '\\') ++c;
if (keybuf_pos >= 4095) return 0;
keybuf[keybuf_pos++] = *c;
keybuf[keybuf_pos] = 0;
break;
case PSTATE_DICT_WAITVALUE:
if (*c == '#') {
stnext = st;
st = PSTATE_COMMENT;
break;
}
if (isspace (*c)) break;
if (*c == ':') break;
if (*c == '=') break;
if (*c == '{') {
*buf = c+1;
vv = var_get_dict_forkey (v, keybuf);
if (! vv) {
sprintf (LAST_PARSE_ERROR, "Couldn't get dict for "
"key '%s'", keybuf);
return 0;
}
if (!var_parse_json_level (vv, buf, PSTATE_DICT_WAITKEY,
depth+1)) {
return 0;
}
c = *buf;
st = PSTATE_DICT_WAITKEY;
break;
}
if (*c == '[') {
*buf = c+1;
vv = var_get_array_forkey (v, keybuf);
if (! vv) {
sprintf (LAST_PARSE_ERROR, "Couldn't get array "
"for key '%s'", keybuf);
return 0;
}
var_clear_array (vv);
if (!var_parse_json_level (vv, buf, PSTATE_ARRAY_WAITVALUE,
depth+1)) {
return 0;
}
c = *buf;
st = PSTATE_DICT_WAITKEY;
break;
}
if (*c == '\"') {
st = PSTATE_DICT_VALUE_QUOTED;
}
else {
if (! strchr (VALIDUNQUOTEDV, *c)) {
sprintf (LAST_PARSE_ERROR, "Invalid character for "
"value: '%c'", *c);
return 0;
}
--c;
value_nondigits = 0;
value_dots = 0;
st = PSTATE_DICT_VALUE;
}
valuebuf_pos = 0;
valuebuf[0] = 0;
break;
case PSTATE_DICT_VALUE:
if (isspace (*c) || (*c == ',') || (*c == '}') ||
(*c == '#')) {
if ((! value_nondigits) && (value_dots < 2)) {
if (value_dots == 0) {
var_set_int_forkey (v, keybuf,
strtoull(valuebuf, NULL, 10));
}
else {
var_set_double_forkey (v, keybuf,
atof(valuebuf));
}
}
else var_set_str_forkey (v, keybuf, valuebuf);
if (*c == '#') {
stnext = PSTATE_DICT_WAITKEY;
st = PSTATE_COMMENT;
break;
}
if (*c == '}') {
*buf = c;
return 1;
}
st = PSTATE_DICT_WAITKEY;
break;
}
if (! strchr (VALIDUNQUOTEDV, *c)) {
sprintf (LAST_PARSE_ERROR, "Invalid character in "
"value for '%s': '%c'", keybuf, *c);
return 0;
}
if (*c == '.') value_dots++;
else if ((!value_nondigits) && (*c<'0' || *c>'9')) {
value_nondigits = 1;
}
if (valuebuf_pos >= 4095) return 0;
valuebuf[valuebuf_pos++] = *c;
valuebuf[valuebuf_pos] = 0;
break;
case PSTATE_DICT_VALUE_QUOTED:
if (*c == '\"') {
var_set_str_forkey (v, keybuf, valuebuf);
st = PSTATE_DICT_WAITKEY;
break;
}
if (*c == '\\') ++c;
if (valuebuf_pos >= 4095) return 0;
valuebuf[valuebuf_pos++] = *c;
valuebuf[valuebuf_pos] = 0;
break;
case PSTATE_ARRAY_WAITVALUE:
if (*c == '#') {
stnext = st;
st = PSTATE_COMMENT;
break;
}
if (isspace (*c)) break;
if (*c == ',') break;
if (*c == ']') {
*buf = c;
return 1;
}
if (*c == '{') {
*buf = c+1;
vv = var_add_dict (v);
if (! vv) {
sprintf (LAST_PARSE_ERROR, "Couldn't add dict");
return 0;
}
if (!var_parse_json_level (vv, buf, PSTATE_DICT_WAITKEY,
depth+1)) {
return 0;
}
c = *buf;
st = PSTATE_ARRAY_WAITVALUE;
break;
}
if (*c == '[') {
*buf = c+1;
vv = var_add_array (v);
if (! vv) {
sprintf (LAST_PARSE_ERROR, "Couldn't add array");
return 0;
}
var_clear_array (vv);
if (!var_parse_json_level (vv, buf, PSTATE_ARRAY_WAITVALUE,
depth+1)) {
return 0;
}
c = *buf;
st = PSTATE_ARRAY_WAITVALUE;
break;
}
if (*c == '\"') {
st = PSTATE_ARRAY_VALUE_QUOTED;
}
else {
if (! strchr (VALIDUNQUOTED, *c)) return 0;
--c;
value_nondigits = 0;
value_dots = 0;
st = PSTATE_ARRAY_VALUE;
}
valuebuf_pos = 0;
valuebuf[0] = 0;
break;
case PSTATE_ARRAY_VALUE:
if (isspace (*c) || (*c == ']') ||
(*c == ',') || (*c == '#')) {
if ((! value_nondigits) && (value_dots<2)) {
if (value_dots == 0) {
var_add_int (v, strtoull (valuebuf, NULL, 10));
}
else {
var_add_double (v, atof (valuebuf));
}
}
else var_add_str (v, valuebuf);
if (*c == '#') {
stnext = PSTATE_ARRAY_WAITVALUE;
st = PSTATE_COMMENT;
break;
}
if (*c == ']') {
*buf = c;
return 1;
}
st = PSTATE_ARRAY_WAITVALUE;
break;
}
if (! strchr (VALIDUNQUOTEDV, *c)) return 0;
if (*c == '.') value_dots++;
else if ((!value_nondigits) && (*c<'0' || *c>'9')) {
value_nondigits = 1;
}
if (valuebuf_pos >= 4095) return 0;
valuebuf[valuebuf_pos++] = *c;
valuebuf[valuebuf_pos] = 0;
break;
case PSTATE_ARRAY_VALUE_QUOTED:
if (*c == '\"') {
var_add_str (v, valuebuf);
st = PSTATE_ARRAY_WAITVALUE;
break;
}
if (*c == '\\') ++c;
if (valuebuf_pos >= 4095) return 0;
valuebuf[valuebuf_pos++] = *c;
valuebuf[valuebuf_pos] = 0;
break;
case PSTATE_COMMENT:
if (*c == '\n') {
st = stnext;
}
break;
}
++c;
*buf = c;
}
return 1;
}
/** Add a string value to an array as a printed uuid.
* \param self The array
* \param u The uuid
*/
void var_add_uuid (var *self, uuid u) {
char buf[40];
uuid2str (u, buf);
var_add_str (self, buf);
}
