mqtt/src/mqttd.c - diff

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Diff for /mqtt/src/mqttd.c between versions 1.1.1.1.2.7 and 1.4.4.2

version 1.1.1.1.2.7, 2011/12/01 00:10:18	version 1.4.4.2, 2013/07/16 14:34:58
Line 1	Line 1
	/*************************************************************************
	* (C) 2011 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
	* by Michael Pounov <misho@openbsd-bg.org>
	*
	* $Author$
	* $Id$
	*
	**************************************************************************
	The ELWIX and AITNET software is distributed under the following
	terms:

	All of the documentation and software included in the ELWIX and AITNET
	Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>

	Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
	by Michael Pounov <misho@elwix.org>. All rights reserved.

	Redistribution and use in source and binary forms, with or without
	modification, are permitted provided that the following conditions
	are met:
	1. Redistributions of source code must retain the above copyright
	notice, this list of conditions and the following disclaimer.
	2. Redistributions in binary form must reproduce the above copyright
	notice, this list of conditions and the following disclaimer in the
	documentation and/or other materials provided with the distribution.
	3. All advertising materials mentioning features or use of this software
	must display the following acknowledgement:
	This product includes software developed by Michael Pounov <misho@elwix.org>
	ELWIX - Embedded LightWeight unIX and its contributors.
	4. Neither the name of AITNET nor the names of its contributors
	may be used to endorse or promote products derived from this software
	without specific prior written permission.

	THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
	ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	SUCH DAMAGE.
	*/
#include "global.h"	#include "global.h"
	#include "mqttd.h"
#include "rtlm.h"	#include "rtlm.h"
#include "utils.h"	#include "utils.h"
#include "daemon.h"	#include "daemon.h"


sl_config cfg;	cfg_root_t cfg;
	sessions_t Sessions;
sched_root_task_t *root;	sched_root_task_t *root;
	sqlite3 acc, pub;
	FILE *logg;
extern char compiled[], compiledby[], compilehost[];	extern char compiled[], compiledby[], compilehost[];
int Verbose;	static char szCfgName[MAXPATHLEN];
	volatile intptr_t Kill;


static void	static void
Line 22 Usage(void)	Line 72 Usage(void)
compiledby, compilehost, compiled);	compiledby, compilehost, compiled);
}	}

	static void
	sigHand(int sig)
	{
	int stat;

	switch (sig) {
	case SIGHUP:
	cfgUnloadConfig(&cfg);
	if (!cfgLoadConfig(szCfgName, &cfg)) {
	EVERBOSE(1, "Config reload OK!");
	break;
	}

	ELIBERR(cfg);
	case SIGINT:
	case SIGTERM:
	EVERBOSE(1, "Terminate MQTT service in progress");
	Kill++;
	break;
	case SIGCHLD:
	while (waitpid(-1, &stat, WNOHANG) > 0);
	break;
	case SIGPIPE:
	break;
	}
	}


int	int
main(int argc, char **argv)	main(int argc, char **argv)
{	{
char ch, batch = 0, szStr[STRSIZ], szCfgName[MAXPATHLEN];	char ch, batch = 0;
register int i;	register int i;
sqlite3 acc = NULL, pub = NULL;
FILE *logg = NULL;
int sock = -1, ret = 0;	int sock = -1, ret = 0;
struct passwd *pass;	struct passwd *pass;
	struct sigaction sa;
	ait_val_t v;

	TAILQ_INIT(&Sessions);

strlcpy(szCfgName, DEFAULT_CONFIG, sizeof szCfgName);	strlcpy(szCfgName, DEFAULT_CONFIG, sizeof szCfgName);
while ((ch = getopt(argc, argv, "hvbc:")) != -1)	while ((ch = getopt(argc, argv, "hvbc:")) != -1)
switch (ch) {	switch (ch) {
Line 43 main(int argc, char **argv)	Line 122 main(int argc, char **argv)
batch++;	batch++;
break;	break;
case 'v':	case 'v':
Verbose++;	e_incVerbose;
	EVERBS(2) elwix_Debug \|= ELWIX_DEBUG_TRACE;
break;	break;
case 'h':	case 'h':
default:	default:
Line 53 main(int argc, char **argv)	Line 133 main(int argc, char **argv)
argc -= optind;	argc -= optind;
argv += optind;	argv += optind;

if (LoadConfig(szCfgName, &cfg)) {	if (cfgLoadConfig(szCfgName, &cfg)) {
printf("Error:: can't load #%d - %s\n", cfg_GetErrno(), cfg_GetError());	printf("Error:: can't load #%d - %s\n", cfg_GetErrno(), cfg_GetError());
return 1;	return 1;
}	}
openlog("mqttd", LOG_PID \| LOG_CONS, LOG_DAEMON);	openlog("mqttd", LOG_PID \| LOG_CONS, LOG_DAEMON);
	/* load 3 plugins */
for (i = 0; i < 3; i++)	for (i = 0; i < 3; i++)
if (!mqttLoadRTLM(&cfg, i)) {	if (!mqttLoadRTLM(&cfg, i)) {
printf("Error:: Can't load RTL module\n");	printf("Error:: Can't load RTL module\n");
while (i--)	mqttUnloadRTLM(acc);
mqttUnloadRTLM(i);	mqttUnloadRTLM(pub);
UnloadConfig(&cfg);	mqttUnloadRTLM(logg);
	cfgUnloadConfig(&cfg);
closelog();	closelog();
return 2;	return 2;
}	}
Line 83 main(int argc, char **argv)	Line 165 main(int argc, char **argv)
goto end;	goto end;
}	}


if (mqttMkDir(&cfg)) {	if (mqttMkDir(&cfg)) {
printf("Error:: in statedir #%d - %s\n", errno, strerror(errno));	printf("Error:: in statedir #%d - %s\n", errno, strerror(errno));
ret = 3;	ret = 3;
goto end;	goto end;
}	}

VERB(2) syslog(LOG_DEBUG, "Service is ready for start engine ...");

if ((sock = srv_Socket(&cfg)) == -1) {
ret = 4;
goto end;
}

if (!batch)	if (!batch)
switch (fork()) {	switch (fork()) {
case -1:	case -1:
Line 104 main(int argc, char **argv)	Line 180 main(int argc, char **argv)
goto end;	goto end;
case 0:	case 0:
setsid();	setsid();
cfg_LoadAttribute(&cfg, CFG("mqttd"), CFG("user"), CFG(szStr),
sizeof szStr, MQTT_USER);
pass = getpwnam(szStr);
if (pass) {
setgid(pass->pw_gid);
setuid(pass->pw_uid);
VERB(1) syslog(LOG_WARNING, "Try to change group #%d and user #%d",
pass->pw_gid, pass->pw_uid);
}
ret = open("/dev/null", O_RDWR);	ret = open("/dev/null", O_RDWR);
if (ret != -1) {	if (ret != -1) {
dup2(ret, STDIN_FILENO);	dup2(ret, STDIN_FILENO);
Line 120 main(int argc, char **argv)	Line 188 main(int argc, char **argv)
dup2(ret, STDERR_FILENO);	dup2(ret, STDERR_FILENO);
close(ret);	close(ret);
}	}
VERB(2) syslog(LOG_DEBUG, "Welcome MQTT service into shadow land!");	EVERBOSE(2, "Welcome MQTT service into shadow land!");
break;	break;
default:	default:
VERB(2) syslog(LOG_DEBUG, "MQTT service go to shadow land ...");	EVERBOSE(2, "MQTT service go to shadow land ...");
	sleep(1);
ret = 0;	ret = 0;
goto end;	goto end;
}	}
else	else
VERB(1) printf("Start service in batch mode ...\n");	EVERBOSE(1, "Start service in batch mode ...");

	memset(&sa, 0, sizeof sa);
	sigemptyset(&sa.sa_mask);
	sa.sa_handler = sigHand;
	sigaction(SIGHUP, &sa, NULL);
	sigaction(SIGINT, &sa, NULL);
	sigaction(SIGTERM, &sa, NULL);
	sigaction(SIGCHLD, &sa, NULL);
	sigaction(SIGPIPE, &sa, NULL);
	EVERBOSE(2, "Service is ready for starting engine ...");

	if ((sock = srv_Socket(&cfg)) == -1) {
	ret = 4;
	goto end;
	}

	cfg_loadAttribute(&cfg, "mqttd", "user", &v, MQTT_USER);
	pass = getpwnam(AIT_GET_STR(&v));
	AIT_FREE_VAL(&v);
	if (pass) {
	setgid(pass->pw_gid);
	setuid(pass->pw_uid);
	EVERBOSE(2, "Try to change group #%d and user #%d", pass->pw_gid, pass->pw_uid);
	}

if (!(root = schedBegin())) {	if (!(root = schedBegin())) {
printf("Error:: scheduler #%d - %s\n", sched_GetErrno(), sched_GetError());	ELIBERR(sched);
ret = 6;	ret = 6;
goto end;	goto end;
}	}

	/* go catch the cat ... */
Run(sock);	Run(sock);

schedEnd(&root);	schedEnd(&root);
end:	end: /* free all resources */
if (sock > STDERR_FILENO)	srv_Close(sock);
srv_Close(sock);
call.CloseLOG(logg);	call.CloseLOG(logg);
call.ClosePUB(pub);	call.ClosePUB(pub);
call.CloseACC(acc);	call.CloseACC(acc);
for (i = 0; i < 3; i++)	mqttUnloadRTLM(acc);
mqttUnloadRTLM(i);	mqttUnloadRTLM(pub);
	mqttUnloadRTLM(logg);
	cfgUnloadConfig(&cfg);
closelog();	closelog();
UnloadConfig(&cfg);
return ret;	return ret;
}	}

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Removed from v.1.1.1.1.2.7
changed lines
	Added in v.1.4.4.2