void StartServer(Policy *policy, GenericAgentConfig *config, const ReportContext *report_context)
{
int sd = -1, sd_reply;
fd_set rset;
struct timeval timeout;
int ret_val;
Promise *pp = NewPromise("server_cfengine", config->input_file);
Attributes dummyattr = { {0} };
CfLock thislock;
time_t starttime = time(NULL), last_collect = 0;
#if defined(HAVE_GETADDRINFO)
socklen_t addrlen = sizeof(struct sockaddr_in6);
struct sockaddr_in6 cin;
#else
socklen_t addrlen = sizeof(struct sockaddr_in);
struct sockaddr_in cin;
#endif
memset(&dummyattr, 0, sizeof(dummyattr));
signal(SIGINT, HandleSignalsForDaemon);
signal(SIGTERM, HandleSignalsForDaemon);
signal(SIGHUP, SIG_IGN);
signal(SIGPIPE, SIG_IGN);
signal(SIGUSR1, HandleSignalsForDaemon);
signal(SIGUSR2, HandleSignalsForDaemon);
sd = SetServerListenState(QUEUESIZE);
dummyattr.transaction.ifelapsed = 0;
dummyattr.transaction.expireafter = 1;
thislock = AcquireLock(pp->promiser, VUQNAME, CFSTARTTIME, dummyattr, pp, false);
if (thislock.lock == NULL)
{
return;
}
CfOut(cf_inform, "", "cf-serverd starting %.24s\n", cf_ctime(&starttime));
if (sd != -1)
{
CfOut(cf_verbose, "", "Listening for connections ...\n");
}
#ifdef __MINGW32__
if (!NO_FORK)
{
CfOut(cf_verbose, "", "Windows does not support starting processes in the background - starting in foreground");
}
#else /* !__MINGW32__ */
if ((!NO_FORK) && (fork() != 0))
{
_exit(0);
}
if (!NO_FORK)
{
ActAsDaemon(sd);
}
#endif /* !__MINGW32__ */
WritePID("cf-serverd.pid");
/* Andrew Stribblehill <*****@*****.**> -- close sd on exec */
#ifndef __MINGW32__
fcntl(sd, F_SETFD, FD_CLOEXEC);
#endif
while (!IsPendingTermination())
{
time_t now = time(NULL);
/* Note that this loop logic is single threaded, but ACTIVE_THREADS
might still change in threads pertaining to service handling */
if (ThreadLock(cft_server_children))
{
if (ACTIVE_THREADS == 0)
{
CheckFileChanges(&policy, config, report_context);
}
ThreadUnlock(cft_server_children);
}
// Check whether we should try to establish peering with a hub
if ((COLLECT_INTERVAL > 0) && ((now - last_collect) > COLLECT_INTERVAL))
{
TryCollectCall();
last_collect = now;
continue;
}
/* check if listening is working */
if (sd != -1)
{
// Look for normal incoming service requests
FD_ZERO(&rset);
FD_SET(sd, &rset);
timeout.tv_sec = 10; /* Set a 10 second timeout for select */
timeout.tv_usec = 0;
CfDebug(" -> Waiting at incoming select...\n");
ret_val = select((sd + 1), &rset, NULL, NULL, &timeout);
if (ret_val == -1) /* Error received from call to select */
{
if (errno == EINTR)
{
continue;
}
else
{
CfOut(cf_error, "select", "select failed");
exit(1);
}
}
else if (!ret_val) /* No data waiting, we must have timed out! */
{
continue;
}
CfOut(cf_verbose, "", " -> Accepting a connection\n");
if ((sd_reply = accept(sd, (struct sockaddr *) &cin, &addrlen)) != -1)
{
char ipaddr[CF_MAXVARSIZE];
memset(ipaddr, 0, CF_MAXVARSIZE);
ThreadLock(cft_getaddr);
snprintf(ipaddr, CF_MAXVARSIZE - 1, "%s", sockaddr_ntop((struct sockaddr *) &cin));
ThreadUnlock(cft_getaddr);
ServerEntryPoint(sd_reply, ipaddr, SV);
}
}
}
}
void StartServer(EvalContext *ctx, Policy **policy, GenericAgentConfig *config)
{
int sd = -1, sd_reply;
fd_set rset;
struct timeval timeout;
int ret_val;
CfLock thislock;
time_t starttime = time(NULL), last_collect = 0;
struct sockaddr_storage cin;
socklen_t addrlen = sizeof(cin);
signal(SIGINT, HandleSignalsForDaemon);
signal(SIGTERM, HandleSignalsForDaemon);
signal(SIGHUP, SIG_IGN);
signal(SIGPIPE, SIG_IGN);
signal(SIGUSR1, HandleSignalsForDaemon);
signal(SIGUSR2, HandleSignalsForDaemon);
sd = SetServerListenState(ctx, QUEUESIZE);
TransactionContext tc = {
.ifelapsed = 0,
.expireafter = 1,
};
Policy *server_cfengine_policy = PolicyNew();
Promise *pp = NULL;
{
Bundle *bp = PolicyAppendBundle(server_cfengine_policy, NamespaceDefault(), "server_cfengine_bundle", "agent", NULL, NULL);
PromiseType *tp = BundleAppendPromiseType(bp, "server_cfengine");
pp = PromiseTypeAppendPromise(tp, config->input_file, (Rval) { NULL, RVAL_TYPE_NOPROMISEE }, NULL);
}
assert(pp);
thislock = AcquireLock(ctx, pp->promiser, VUQNAME, CFSTARTTIME, tc, pp, false);
if (thislock.lock == NULL)
{
PolicyDestroy(server_cfengine_policy);
return;
}
Log(LOG_LEVEL_INFO, "cf-serverd starting %.24s", ctime(&starttime));
if (sd != -1)
{
Log(LOG_LEVEL_VERBOSE, "Listening for connections ...");
}
#ifdef __MINGW32__
if (!NO_FORK)
{
Log(LOG_LEVEL_VERBOSE, "Windows does not support starting processes in the background - starting in foreground");
}
#else /* !__MINGW32__ */
if ((!NO_FORK) && (fork() != 0))
{
_exit(0);
}
if (!NO_FORK)
{
ActAsDaemon(sd);
}
#endif /* !__MINGW32__ */
WritePID("cf-serverd.pid");
/* Andrew Stribblehill <*****@*****.**> -- close sd on exec */
#ifndef __MINGW32__
fcntl(sd, F_SETFD, FD_CLOEXEC);
#endif
while (!IsPendingTermination())
{
time_t now = time(NULL);
/* Note that this loop logic is single threaded, but ACTIVE_THREADS
might still change in threads pertaining to service handling */
if (ThreadLock(cft_server_children))
{
if (ACTIVE_THREADS == 0)
{
CheckFileChanges(ctx, policy, config);
}
ThreadUnlock(cft_server_children);
}
// Check whether we should try to establish peering with a hub
if ((COLLECT_INTERVAL > 0) && ((now - last_collect) > COLLECT_INTERVAL))
{
TryCollectCall();
last_collect = now;
continue;
}
/* check if listening is working */
if (sd != -1)
{
// Look for normal incoming service requests
FD_ZERO(&rset);
FD_SET(sd, &rset);
/* Set 1 second timeout for select, so that signals are handled in
* a timely manner */
timeout.tv_sec = 1;
timeout.tv_usec = 0;
Log(LOG_LEVEL_DEBUG, "Waiting at incoming select...");
ret_val = select((sd + 1), &rset, NULL, NULL, &timeout);
if (ret_val == -1) /* Error received from call to select */
{
if (errno == EINTR)
{
continue;
}
else
{
Log(LOG_LEVEL_ERR, "select failed. (select: %s)", GetErrorStr());
exit(1);
}
}
else if (!ret_val) /* No data waiting, we must have timed out! */
{
continue;
}
Log(LOG_LEVEL_VERBOSE, "Accepting a connection");
if ((sd_reply = accept(sd, (struct sockaddr *) &cin, &addrlen)) != -1)
{
/* Just convert IP address to string, no DNS lookup. */
char ipaddr[CF_MAX_IP_LEN] = "";
getnameinfo((struct sockaddr *) &cin, addrlen,
ipaddr, sizeof(ipaddr),
NULL, 0, NI_NUMERICHOST);
ServerEntryPoint(ctx, sd_reply, ipaddr);
}
}
}
PolicyDestroy(server_cfengine_policy);
}
/*********************************************************************/
/* Level 2 */
/*********************************************************************/
int InitServer(size_t queue_size)
{
int sd = -1;
if ((sd = OpenReceiverChannel()) == -1)
{
Log(LOG_LEVEL_ERR, "Unable to start server");
exit(1);
}
if (listen(sd, queue_size) == -1)
{
Log(LOG_LEVEL_ERR, "listen failed. (listen: %s)", GetErrorStr());
exit(1);
}
return sd;
}
