Files
aqhomecontrol/apps/aqhomed/init.c
2023-07-14 00:02:21 +02:00

520 lines
17 KiB
C

/****************************************************************************
* This file is part of the project AqHome.
* AqHome (c) by 2023 Martin Preuss, all rights reserved.
*
* The license for this file can be found in the file COPYING which you
* should have received along with this file.
****************************************************************************/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "./init.h"
#include "./aqhomed_p.h"
#include "./tty_log.h"
#include "./tty_write.h"
#include "aqhome/msg/endpoint_tty.h"
#include "aqhome/ipc/endpoint_ipc.h"
#include "aqhome/mqtt/endpoint_mqttc.h"
#include <gwenhywfar/gwenhywfar.h>
#include <gwenhywfar/args.h>
#include <gwenhywfar/debug.h>
#include <gwenhywfar/endpoint_tcpd.h>
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif
#include <unistd.h>
#include <stdio.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
#include <time.h>
/* ------------------------------------------------------------------------------------------------
* defines
* ------------------------------------------------------------------------------------------------
*/
#define I18N(msg) msg
#define I18S(msg) msg
/* ------------------------------------------------------------------------------------------------
* forward declarations
* ------------------------------------------------------------------------------------------------
*/
static int _setupTty(AQHOMED *aqh, GWEN_DB_NODE *dbArgs);
static void _setupIpc(AQHOMED *aqh, GWEN_DB_NODE *dbArgs);
static GWEN_MSG_ENDPOINT *_acceptIpcFn(GWEN_MSG_ENDPOINT *ep, GWEN_SOCKET *sk, const GWEN_INETADDRESS *addr, void *data);
static void _setupMqtt(AQHOMED *aqh, GWEN_DB_NODE *dbArgs);
static void _setupLog(AQHOMED *aqh, GWEN_DB_NODE *dbArgs);
static void _setupWriter(AQHOMED *aqh, GWEN_DB_NODE *dbArgs);
static void _setupDb(AQHOMED *aqh, GWEN_DB_NODE *dbArgs);
static int _readArgs(int argc, char **argv, GWEN_DB_NODE *dbArgs);
static int _createPidFile(const char *pidFilename);
/* ------------------------------------------------------------------------------------------------
* implementations
* ------------------------------------------------------------------------------------------------
*/
int AqHomed_Init(AQHOMED *aqh, int argc, char **argv)
{
GWEN_DB_NODE *dbArgs;
int rv;
const char *s;
dbArgs=GWEN_DB_Group_new("args");
rv=_readArgs(argc, argv, dbArgs);
if (rv<0) {
DBG_ERROR(NULL, "Error reading args (%d)", rv);
return rv;
}
aqh->dbArgs=dbArgs;
s=GWEN_DB_GetCharValue(dbArgs, "pidfile", 0, AQHOMED_DEFAULT_PIDFILE);
if (s && *s) {
AqHomed_SetPidFile(aqh, s);
rv=_createPidFile(s);
if (rv<0) {
DBG_ERROR(NULL, "Error creating PID file (%d)", rv);
return rv;
}
}
aqh->nodeAddress=GWEN_DB_GetIntValue(dbArgs, "nodeAddress", 0, AQHOMED_DEFAULT_NODEADDR);
_setupDb(aqh, dbArgs);
rv=_setupTty(aqh, dbArgs);
if (rv<0) {
DBG_ERROR(NULL, "Error setting up TTY endpoint (%d)", rv);
return rv;
}
_setupIpc(aqh, dbArgs);
_setupMqtt(aqh, dbArgs);
_setupLog(aqh, dbArgs);
_setupWriter(aqh, dbArgs);
return 0;
}
int _setupTty(AQHOMED *aqh, GWEN_DB_NODE *dbArgs)
{
const char *devicePath;
devicePath=GWEN_DB_GetCharValue(dbArgs, "device", 0, AQHOMED_DEFAULT_DEVICE);
if (devicePath && *devicePath) {
GWEN_MSG_ENDPOINT *epTty;
epTty=AQH_TtyEndpoint_new(devicePath, AQHOME_ENDPOINTGROUP_NODE);
if (epTty==NULL) {
DBG_ERROR(NULL, "Error creating endpoint TTY");
return GWEN_ERROR_GENERIC;
}
GWEN_MsgEndpoint_Tree2_AddChild(aqh->rootEndpoint, epTty);
aqh->ttyEndpoint=epTty;
}
else {
DBG_ERROR(NULL, "Missing device path");
return GWEN_ERROR_GENERIC;
}
return 0;
}
void _setupIpc(AQHOMED *aqh, GWEN_DB_NODE *dbArgs)
{
const char *tcpAddress;
int tcpPort;
tcpAddress=GWEN_DB_GetCharValue(dbArgs, "tcpAddress", 0, NULL);
tcpPort=GWEN_DB_GetIntValue(dbArgs, "tcpPort", 0, AQHOMED_DEFAULT_IPC_PORT);
if (tcpAddress && *tcpAddress && tcpPort) {
GWEN_MSG_ENDPOINT *ep;
ep=GWEN_TcpdEndpoint_new(tcpAddress, tcpPort, NULL, AQHOME_ENDPOINTGROUP_IPC);
GWEN_TcpdEndpoint_SetAcceptFn(ep, _acceptIpcFn, aqh);
GWEN_MsgEndpoint_Tree2_AddChild(aqh->rootEndpoint, ep);
aqh->ipcdEndpoint=ep;
}
}
void _setupMqtt(AQHOMED *aqh, GWEN_DB_NODE *dbArgs)
{
const char *mqttAddress;
int mqttPort;
const char *mqttClientId;
const char *mqttTopicPrefix;
int mqttKeepAlive;
mqttAddress=GWEN_DB_GetCharValue(dbArgs, "mqttAddress", 0, NULL);
mqttPort=GWEN_DB_GetIntValue(dbArgs, "mqttPort", 0, AQHOMED_DEFAULT_MQTT_PORT);
mqttClientId=GWEN_DB_GetCharValue(dbArgs, "mqttClientId", 0, AQHOMED_DEFAULT_MQTT_CLIENTID);
mqttTopicPrefix=GWEN_DB_GetCharValue(dbArgs, "mqttTopicPrefix", 0, AQHOMED_DEFAULT_MQTT_TOPIC_PREFIX);
mqttKeepAlive=GWEN_DB_GetIntValue(dbArgs, "mqttKeepAlive", 0, AQHOMED_DEFAULT_MQTT_KEEPALIVE);
if (mqttAddress && *mqttAddress && mqttPort) {
GWEN_MSG_ENDPOINT *ep;
int rv;
ep=AQH_MqttClientEndpoint_new(mqttClientId, mqttAddress, mqttPort, NULL, AQHOME_ENDPOINTGROUP_MQTT);
AqHomed_SetMqttTopicPrefix(aqh, mqttTopicPrefix);
AQH_MqttClientEndpoint_SetKeepAliveTime(ep, mqttKeepAlive);
GWEN_MsgEndpoint_Tree2_AddChild(aqh->rootEndpoint, ep);
aqh->mqttEndpoint=ep;
rv=AQH_MqttClientEndpoint_StartConnect(ep);
if (rv<0 && rv!=GWEN_ERROR_IN_PROGRESS) {
DBG_ERROR(NULL, "Error connecting to MQTT server %s:%d (%d), will retry later", mqttAddress, mqttPort, rv);
}
}
}
GWEN_MSG_ENDPOINT *_acceptIpcFn(GWEN_MSG_ENDPOINT *ep,
GWEN_SOCKET *sk,
const GWEN_INETADDRESS *addr,
GWEN_UNUSED void *data)
{
/* AQHOMED *aqh;
*
* aqh=(AQHOMED*) data;
*/
DBG_INFO(NULL, "Incoming IPC connection");
return AQH_IpcEndpoint_CreateIpcTcpServiceForSocket(sk, NULL, AQHOME_ENDPOINTGROUP_IPC);
}
void _setupLog(AQHOMED *aqh, GWEN_DB_NODE *dbArgs)
{
const char *logFile;
logFile=GWEN_DB_GetCharValue(dbArgs, "logfile", 0, NULL);
if (logFile && *logFile)
AqHomed_SetLogFile(aqh, logFile);
}
void _setupWriter(AQHOMED *aqh, GWEN_DB_NODE *dbArgs)
{
const char *writeToFolder;
writeToFolder=GWEN_DB_GetCharValue(dbArgs, "writeToFolder", 0, NULL);
if (writeToFolder && *writeToFolder)
AqHomed_SetWriteFolder(aqh, writeToFolder);
}
void _setupDb(AQHOMED *aqh, GWEN_DB_NODE *dbArgs)
{
const char *s;
s=GWEN_DB_GetCharValue(dbArgs, "dbfile", 0, NULL);
if (s && *s) {
GWEN_DB_NODE *dbNodeDb;
int rv;
AqHomed_SetDbFile(aqh, s);
dbNodeDb=GWEN_DB_Group_new("dbNodes");
rv=GWEN_DB_ReadFile(dbNodeDb, s, GWEN_DB_FLAGS_DEFAULT);
if (rv==0) {
AQH_NodeDb_fromDb(aqh->nodeDb, dbNodeDb);
}
GWEN_DB_Group_free(dbNodeDb);
}
}
int _createPidFile(const char *pidFilename)
{
FILE *f;
int pidfd;
if (remove(pidFilename)==0) {
DBG_ERROR(0, "Old PID file existed, removed. (Unclean shutdown?)");
}
#ifdef HAVE_SYS_STAT_H
pidfd = open(pidFilename, O_EXCL|O_CREAT|O_WRONLY, S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH);
if (pidfd < 0) {
DBG_ERROR(NULL, "Could not create PID file \"%s\" (%s), aborting.", pidFilename, strerror(errno));
return GWEN_ERROR_IO;
}
f = fdopen(pidfd, "w");
#else /* HAVE_STAT_H */
f=fopen(pidFilename,"w+");
#endif /* HAVE_STAT_H */
/* write pid */
#ifdef HAVE_GETPID
fprintf(f,"%d\n",getpid());
#else
fprintf(f,"-1\n");
#endif
if (fclose(f)) {
DBG_ERROR(0, "Could not close PID file \"%s\" (%s), aborting.", pidFilename, strerror(errno));
return GWEN_ERROR_IO;
}
return 0;
}
int _readArgs(int argc, char **argv, GWEN_DB_NODE *dbArgs)
{
int rv;
const GWEN_ARGS args[]= {
{
GWEN_ARGS_FLAGS_HAS_ARGUMENT, /* flags */
GWEN_ArgsType_Char, /* type */
"cfgdir", /* name */
0, /* minnum */
1, /* maxnum */
"D", /* short option */
"cfgdir", /* long option */
I18S("Specify the configuration folder"),
I18S("Specify the configuration folder")
},
{
GWEN_ARGS_FLAGS_HAS_ARGUMENT, /* flags */
GWEN_ArgsType_Char, /* type */
"charset", /* name */
0, /* minnum */
1, /* maxnum */
0, /* short option */
"charset", /* long option */
I18S("Specify the output character set"), /* short description */
I18S("Specify the output character set") /* long description */
},
{
GWEN_ARGS_FLAGS_HAS_ARGUMENT, /* flags */
GWEN_ArgsType_Char, /* type */
"device", /* name */
0, /* minnum */
1, /* maxnum */
"d", /* short option */
"device", /* long option */
I18S("Specify the device to communicate with (e.g. /dev/ttyUSB0)"),
I18S("Specify the device to communicate with (e.g. /dev/ttyUSB0)")
},
{
GWEN_ARGS_FLAGS_HAS_ARGUMENT, /* flags */
GWEN_ArgsType_Int, /* type */
"nodeAddress", /* name */
0, /* minnum */
1, /* maxnum */
"n", /* short option */
"node", /* long option */
I18S("Specify the node address for the AqHome node adaptor (default 240)"),
I18S("Specify the node address for the AqHome node adaptor (default 240)")
},
{
GWEN_ARGS_FLAGS_HAS_ARGUMENT, /* flags */
GWEN_ArgsType_Char, /* type */
"logFile", /* name */
0, /* minnum */
1, /* maxnum */
"l", /* short option */
"logfile", /* long option */
I18S("Specify a logfile to log received messages to"),
I18S("Specify a logfile to log received messages to")
},
{
GWEN_ARGS_FLAGS_HAS_ARGUMENT, /* flags */
GWEN_ArgsType_Char, /* type */
"tcpAddress", /* name */
0, /* minnum */
1, /* maxnum */
"t", /* short option */
"tcpaddress", /* long option */
I18S("Specify the TCP address to listen on (disabled if missing)"),
I18S("Specify the TCP address to listen on (disabled if missing)")
},
{
GWEN_ARGS_FLAGS_HAS_ARGUMENT, /* flags */
GWEN_ArgsType_Int, /* type */
"tcpPort", /* name */
0, /* minnum */
1, /* maxnum */
"P", /* short option */
"tcpport", /* long option */
I18S("Specify the TCP port to listen on"),
I18S("Specify the TCP port to listen on")
},
{
GWEN_ARGS_FLAGS_HAS_ARGUMENT, /* flags */
GWEN_ArgsType_Char, /* type */
"mqttAddress", /* name */
0, /* minnum */
1, /* maxnum */
"ma", /* short option */
"mqttaddress", /* long option */
I18S("Specify the address of the MQTT server to connect to (disabled if missing)"),
I18S("Specify the address of the MQTT server to connect to (disabled if missing)")
},
{
GWEN_ARGS_FLAGS_HAS_ARGUMENT, /* flags */
GWEN_ArgsType_Int, /* type */
"mqttPort", /* name */
0, /* minnum */
1, /* maxnum */
"mp", /* short option */
"mqttport", /* long option */
I18S("Specify the port of the MQTT server (default: 1883)"),
I18S("Specify the port of the MQTT server (default: 1883)")
},
{
GWEN_ARGS_FLAGS_HAS_ARGUMENT, /* flags */
GWEN_ArgsType_Char, /* type */
"mqttClientId", /* name */
0, /* minnum */
1, /* maxnum */
NULL, /* short option */
"mqttclientid", /* long option */
I18S("Specify client id for the MQTT server (default: \"aqhomed\")"),
I18S("Specify client id for the MQTT server (default: \"aqhomed\")")
},
{
GWEN_ARGS_FLAGS_HAS_ARGUMENT, /* flags */
GWEN_ArgsType_Char, /* type */
"mqttTopicPrefix", /* name */
0, /* minnum */
1, /* maxnum */
"mt", /* short option */
"mqtttopicprefix", /* long option */
I18S("Specify prefix of MQTT topics when publishing (defaults to \"aqhome/sensors\")"),
I18S("Specify prefix of MQTT topics when publishing (defaults to \"aqhome/sensors\")")
},
{
GWEN_ARGS_FLAGS_HAS_ARGUMENT, /* flags */
GWEN_ArgsType_Int, /* type */
"mqttKeepAlive", /* name */
0, /* minnum */
1, /* maxnum */
"mk", /* short option */
"mqttkeepalive", /* long option */
I18S("Specify keepalive time in seconds (defaults: 600)"),
I18S("Specify keepalive time in seconds (defaults: 600)")
},
{
GWEN_ARGS_FLAGS_HAS_ARGUMENT, /* flags */
GWEN_ArgsType_Char, /* type */
"dbfile", /* name */
0, /* minnum */
1, /* maxnum */
"db", /* short option */
"dbfile", /* long option */
I18S("Specify DB file to read/write node database"),
I18S("Specify DB file to read/write node database")
},
{
GWEN_ARGS_FLAGS_HAS_ARGUMENT, /* flags */
GWEN_ArgsType_Char, /* type */
"writeToFolder", /* name */
0, /* minnum */
1, /* maxnum */
"W", /* short option */
NULL, /* long option */
I18S("Specify folder to write received values to"),
I18S("Specify folder to write received values to")
},
{
GWEN_ARGS_FLAGS_HAS_ARGUMENT, /* flags */
GWEN_ArgsType_Char, /* type */
"pidfile", /* name */
0, /* minnum */
1, /* maxnum */
"p", /* short option */
"pidfile", /* long option */
I18S("Specify the PID file"),
I18S("Specify the PID file")
},
{
GWEN_ARGS_FLAGS_HAS_ARGUMENT, /* flags */
GWEN_ArgsType_Int, /* type */
"timeout", /* name */
0, /* minnum */
1, /* maxnum */
"T", /* short option */
"timeout", /* long option */
I18S("Specify timeout in second (default: no timeout)"),
I18S("Specify timeout in second (default: no timeout)")
},
{
GWEN_ARGS_FLAGS_HELP | GWEN_ARGS_FLAGS_LAST, /* flags */
GWEN_ArgsType_Int, /* type */
"help", /* name */
0, /* minnum */
0, /* maxnum */
"h", /* short option */
"help",
I18S("Show this help screen."),
I18S("Show this help screen.")
}
};
rv=GWEN_Args_Check(argc, argv, 1, 0, args, dbArgs);
if (rv==GWEN_ARGS_RESULT_ERROR) {
fprintf(stderr, "ERROR: Could not parse arguments main\n");
return GWEN_ERROR_INVALID;
}
else if (rv==GWEN_ARGS_RESULT_HELP) {
GWEN_BUFFER *ubuf;
ubuf=GWEN_Buffer_new(0, 1024, 0, 1);
GWEN_Buffer_AppendArgs(ubuf,
I18N("This is version %s.\nUsage: %s [OPTIONS]\n\nOptions:\n"),
AQHOME_VERSION_STRING,
argv[0]);
if (GWEN_Args_Usage(args, ubuf, GWEN_ArgsOutType_Txt)) {
fprintf(stderr, "ERROR: Could not create help string\n");
return 1;
}
GWEN_Buffer_AppendString(ubuf, "\n");
fprintf(stdout, "%s\n", GWEN_Buffer_GetStart(ubuf));
GWEN_Buffer_free(ubuf);
return GWEN_ERROR_CLOSE;
}
return 0;
}