[Improve][Moduralization][Module_4g]

2021.03.11 / Folus Wen

Actions:
1. Wehn ppp0 can access internet without default route gateway, task will force add ppp0 gateway to default route gateway.

Files:
1. As follow commit history

Image version: V0.09
Image checksum: XXXXXXXX

Hardware PWB P/N : XXXXXXX
Hardware Version : XXXXXXX

EVSE/Modularization/Module_4g.c

@@ -80,7 +80,7 @@ void substr(char *dest, const char* src, unsigned int start, unsigned int cnt);
 
 char *portName[3] 				= {"/dev/ttyUSB2", "/dev/ttyUSB2", "/dev/ttyACM2"};
 char *valid_Internet[2] 		= {"8.8.8.8", "180.76.76.76"};
-char *Version_And_Date[2]		= {"V0.08","2021-02-23"};
+char *Version_And_Date[2]		= {"V0.09","2021-03-11"};
 pid_t	pid;
 
 struct dongle_info
@@ -227,11 +227,11 @@ int Check4GModem(void)
 
     if(result == DONGLE_QUECTEL)
     {
-    	DEBUG_WARN("Quectel 4G modem be found\n");
+    	DEBUG_INFO("Quectel 4G modem be found\n");
     }
     else if(result == DONGLE_UBLOX)
     {
-    	DEBUG_WARN("Ublox 4G modem be found\n");
+    	DEBUG_INFO("Ublox 4G modem be found\n");
     }
     else
     {
@@ -879,7 +879,8 @@ int isReachableInternet(void)
 	FILE *fp;
 	char cmd[256];
 	char buf[512];
-	//char tmp[512];
+	char tmp[256];
+	char isPppGetGw = FALSE;
 
 	for(int idx=0;idx<ARRAY_SIZE(valid_Internet);idx++)
 	{
@@ -894,9 +895,7 @@ int isReachableInternet(void)
 					//sscanf(buf, "%*s%*s%*s%*s%*s%s", tmp);
 
 					if(strstr(buf,"100%") != NULL)
-					{
-
-					}
+					{}
 					else
 					{
 						result = PASS;
@@ -906,10 +905,44 @@ int isReachableInternet(void)
 				}
 			}
 		}
-		
 		pclose(fp);
 	}
 	
+	// Check ppp0 gateway
+	if(result == TRUE)
+	{
+		fp = popen("ip route", "r");
+		if(fp == NULL)
+			result = FAIL;
+		else
+		{
+			while(fgets(buf, sizeof(buf), fp) != NULL)
+			{
+				if((strstr(buf, "default") != NULL) && (strstr(buf, "ppp0") != NULL))
+				{
+					isPppGetGw = TRUE;
+					break;
+				}
+
+				if(strstr(buf, "ppp0") != NULL)
+				{
+					break;
+				}
+			}
+
+			if((isPppGetGw == FALSE) && (strstr(buf, "ppp0") != NULL))
+			{
+				sscanf(buf, "%s", tmp);
+				DEBUG_INFO("ppp0 does not get default route gateway force assign to %s\n", tmp);
+
+				sprintf(cmd,"route add default gw %s ppp0 &", tmp);
+				system(cmd);
+			}
+		}
+		pclose(fp);
+		memset(buf, 0x00, sizeof(buf));
+	}
+
 	return result;
 }
 
@@ -1171,8 +1204,7 @@ int main(void)
 	
 	for(;;)
 	{
-		TOP:
-		
+TOP:
 		switch(ShmSysConfigAndInfo->SysConfig.TelecomInterface.TelcomEnabled)
 		{
 			case ENABLE_4G:
@@ -1475,7 +1507,6 @@ int main(void)
 				break;
 			
 		}
-		//sleep(SystemInterval);
 	}
 
 	return 0;