static Reload CheckNewPromises(GenericAgentConfig *config)
{
Log(LOG_LEVEL_DEBUG, "Checking file updates for input file '%s'", config->input_file);
time_t validated_at = ReadTimestampFromPolicyValidatedFile(config, NULL);
if (config->agent_specific.daemon.last_validated_at < validated_at)
{
/* Rereading policies now, so update timestamp. */
config->agent_specific.daemon.last_validated_at = validated_at;
Log(LOG_LEVEL_VERBOSE, "New promises detected...");
if (GenericAgentArePromisesValid(config))
{
return RELOAD_FULL;
}
else
{
Log(LOG_LEVEL_INFO, "New promises file contains syntax errors -- ignoring");
}
}
else
{
Log(LOG_LEVEL_DEBUG, "No new promises found");
}
return RELOAD_ENVIRONMENT;
}
bool GenericAgentCheckPolicy(GenericAgentConfig *config, bool force_validation, bool write_validated_file)
{
if (!MissingInputFile(config->input_file))
{
{
if (config->agent_type == AGENT_TYPE_SERVER ||
config->agent_type == AGENT_TYPE_MONITOR ||
config->agent_type == AGENT_TYPE_EXECUTOR)
{
time_t validated_at = ReadTimestampFromPolicyValidatedFile(config, NULL);
config->agent_specific.daemon.last_validated_at = validated_at;
}
}
if (IsPolicyPrecheckNeeded(config, force_validation))
{
bool policy_check_ok = GenericAgentArePromisesValid(config);
if (policy_check_ok && write_validated_file)
{
GenericAgentTagReleaseDirectory(config,
NULL, // use GetAutotagDir
write_validated_file, // true
GetAmPolicyHub(GetWorkDir())); // write release ID?
}
if (config->agent_specific.agent.bootstrap_policy_server && !policy_check_ok)
{
Log(LOG_LEVEL_VERBOSE, "Policy is not valid, but proceeding with bootstrap");
return true;
}
return policy_check_ok;
}
else
{
Log(LOG_LEVEL_VERBOSE, "Policy is already validated");
return true;
}
}
return false;
}
static void CheckFileChanges(EvalContext *ctx, Policy **policy, GenericAgentConfig *config)
{
Log(LOG_LEVEL_DEBUG, "Checking file updates for input file '%s'",
config->input_file);
time_t validated_at = ReadTimestampFromPolicyValidatedFile(config, NULL);
bool reload_config = false;
if (config->agent_specific.daemon.last_validated_at < validated_at)
{
Log(LOG_LEVEL_VERBOSE, "New promises detected...");
reload_config = true;
}
if (ReloadConfigRequested())
{
Log(LOG_LEVEL_VERBOSE, "Force reload of inputs files...");
reload_config = true;
}
if (reload_config)
{
ClearRequestReloadConfig();
/* Rereading policies now, so update timestamp. */
config->agent_specific.daemon.last_validated_at = validated_at;
if (GenericAgentArePromisesValid(config))
{
Log(LOG_LEVEL_NOTICE, "Rereading policy file '%s'",
config->input_file);
/* STEP 1: Free everything */
EvalContextClear(ctx);
strcpy(VDOMAIN, "undefined.domain");
ClearAuthAndACLs();
PolicyDestroy(*policy); *policy = NULL;
/* STEP 2: Set Environment, Parse and Evaluate policy */
/*
* TODO why is this done separately here? What's the difference to
* calling the same steps as in cf-serverd.c:main()? Those are:
* GenericAgentConfigApply(); // not here!
* GenericAgentDiscoverContext(); // not here!
* EvalContextClassPutHard("server"); // only here!
* if (GenericAgentCheckPolicy()) // not here!
* policy = LoadPolicy();
* ThisAgentInit(); // not here, only calls umask()
* ReloadHAConfig(); // only here!
* KeepPromises();
* Summarize();
* Plus the following from within StartServer() which is only
* called during startup:
* InitSignals(); // not here
* ServerTLSInitialize(); // not here
* SetServerListenState(); // not here
* InitServer() // not here
* PolicyNew()+AcquireServerLock() // not here
* PrepareServer(sd); // not here
* CollectCallStart(); // both
*/
EvalContextSetPolicyServerFromFile(ctx, GetWorkDir());
UpdateLastPolicyUpdateTime(ctx);
DetectEnvironment(ctx);
KeepHardClasses(ctx);
LoadAugments(ctx, config);
/* During startup this is done in GenericAgentDiscoverContext(). */
EvalContextClassPutHard(ctx, CF_AGENTTYPES[AGENT_TYPE_SERVER], "cfe_internal,source=agent");
time_t t = SetReferenceTime();
UpdateTimeClasses(ctx, t);
/* TODO BUG: this modifies config, but previous config has not
* been reset/free'd. Ideally we would want LoadPolicy to not
* modify config at all, but only modify ctx. */
*policy = LoadPolicy(ctx, config);
/* Reload HA related configuration */
ReloadHAConfig();
KeepPromises(ctx, *policy, config);
Summarize();
}
else
{
Log(LOG_LEVEL_INFO, "File changes contain errors -- ignoring");
}
}
else
{
Log(LOG_LEVEL_DEBUG, "No new promises found");
}
}
static void Apoptosis(void)
{
char promiser_buf[CF_SMALLBUF];
snprintf(promiser_buf, sizeof(promiser_buf), "%s%cbin%ccf-execd",
GetWorkDir(), FILE_SEPARATOR, FILE_SEPARATOR);
if (LoadProcessTable())
{
char myuid[PRINTSIZE(unsigned)];
xsnprintf(myuid, sizeof(myuid), "%u", (unsigned) getuid());
Rlist *owners = NULL;
RlistPrepend(&owners, myuid, RVAL_TYPE_SCALAR);
ProcessSelect process_select = {
.owner = owners,
.process_result = "process_owner",
};
Item *killlist = SelectProcesses(promiser_buf, process_select, true);
RlistDestroy(owners);
for (Item *ip = killlist; ip != NULL; ip = ip->next)
{
pid_t pid = ip->counter;
if (pid != getpid() && kill(pid, SIGTERM) < 0)
{
if (errno == ESRCH)
{
/* That's ok, process exited voluntarily */
}
else
{
Log(LOG_LEVEL_ERR, "Unable to kill stale cf-execd process pid=%d. (kill: %s)",
(int)pid, GetErrorStr());
}
}
}
}
ClearProcessTable();
Log(LOG_LEVEL_VERBOSE, "Pruning complete");
}
#endif
typedef enum
{
RELOAD_ENVIRONMENT,
RELOAD_FULL
} Reload;
static Reload CheckNewPromises(GenericAgentConfig *config)
{
Log(LOG_LEVEL_DEBUG, "Checking file updates for input file '%s'", config->input_file);
time_t validated_at = ReadTimestampFromPolicyValidatedFile(config, NULL);
bool reload_config = false;
if (config->agent_specific.daemon.last_validated_at < validated_at)
{
Log(LOG_LEVEL_VERBOSE, "New promises detected...");
reload_config = true;
}
if (ReloadConfigRequested())
{
Log(LOG_LEVEL_VERBOSE, "Force reload of inputs files...");
reload_config = true;
}
if (reload_config)
{
ClearRequestReloadConfig();
/* Rereading policies now, so update timestamp. */
config->agent_specific.daemon.last_validated_at = validated_at;
if (GenericAgentArePromisesValid(config))
{
return RELOAD_FULL;
}
else
{
Log(LOG_LEVEL_INFO, "New promises file contains syntax errors -- ignoring");
}
}
else
{
Log(LOG_LEVEL_DEBUG, "No new promises found");
}
return RELOAD_ENVIRONMENT;
}
