Rewrote LAN support code. Changed configuration file name lan_support.conf to subnet_athena.conf, changed it syntax.

git-svn-id: https://rathena.svn.sourceforge.net/svnroot/rathena/trunk@5398 54d463be-8e91-2dee-dedb-b68131a5f0ec

2 files changed, 77 insertions, 94 deletions

diff --git a/src/char/char.c b/src/char/char.c
index 1cedc568c..d1c145077 100644
--- a/src/char/char.c
+++ b/src/char/char.c
@@ -75,10 +75,17 @@ char backup_txt_flag = 0; // The backup_txt file was created because char deleti
 char unknown_char_name[1024] = "Unknown";

 char char_log_filename[1024] = "log/char.log";

 char db_path[1024]="db";

-//Added for lan support

-char lan_map_ip[128];

-int subneti[4];

-int subnetmaski[4];

+

+// Advanced subnet check [LuzZza]

+struct _subnet {

+	long subnet;

+	long mask;

+	long char_ip;

+	long map_ip;

+} subnet[16];

+

+int subnet_count = 0;

+

 int name_ignoring_case = 0; // Allow or not identical name for characters but with a different case by [Yor]

 int char_name_option = 0; // Option to know which letters/symbols are authorised in the name of a character (0: all, 1: only those in char_name_letters, 2: all EXCEPT those in char_name_letters) by [Yor]

 //The following are characters that are trimmed regardless because they cause confusion and problems on the servers. [Skotlex]

@@ -3003,34 +3010,43 @@ static int char_mapif_init(int fd) {
 	return inter_mapif_init(fd);

 }

 

-//-----------------------------------------------------

-// Test to know if an IP come from LAN or WAN. by [Yor]

-//-----------------------------------------------------

-int lan_ip_check(unsigned char *p){

+//--------------------------------------------

+// Test to know if an IP come from LAN or WAN.

+// Rewrote: Adnvanced subnet check [LuzZza]

+//--------------------------------------------

+int lan_subnetcheck(long *p) {

+

 	int i;

-	int lancheck = 1;

-

-//	printf("lan_ip_check: to compare: %d.%d.%d.%d, network: %d.%d.%d.%d/%d.%d.%d.%d\n",

-//	       p[0], p[1], p[2], p[3],

-//	       subneti[0], subneti[1], subneti[2], subneti[3],

-//	       subnetmaski[0], subnetmaski[1], subnetmaski[2], subnetmaski[3]);

-	for(i = 0; i < 4; i++) {

-		if ((subneti[i] & subnetmaski[i]) != (p[i] & subnetmaski[i])) {

-			lancheck = 0;

-			break;

+	unsigned char *sbn, *msk;

+	

+	for(i=0; i<subnet_count; i++) {

+	

+		if((subnet[i].subnet & subnet[i].mask) == (*p & subnet[i].mask)) {

+			

+			sbn = (unsigned char *)&subnet[i].subnet;

+			msk = (unsigned char *)&subnet[i].mask;

+			

+			ShowStatus("Subnet check result: "CL_CYAN"%u.%u.%u.%u/%u.%u.%u.%u"CL_RESET"\n",

+				sbn[0], sbn[1], sbn[2], sbn[3], msk[0], msk[1], msk[2], msk[3]);

+			

+			return subnet[i].map_ip;

 		}

 	}

-	ShowInfo("LAN test (result): %s source"CL_RESET".\n", (lancheck) ? CL_CYAN"LAN" : CL_GREEN"WAN");

-	return lancheck;

+	

+	ShowStatus("Subnet check result: "CL_CYAN"no matches."CL_RESET"\n");

+	return 0;

 }

 

 int parse_char(int fd) {

+	

 	int i, ch;

 	unsigned short cmd;

 	char email[40];

 	int map_fd;

 	struct char_session_data *sd;

 	unsigned char *p = (unsigned char *) &session[fd]->client_addr.sin_addr;

+	long subnet_map_ip;

+	

 	RFIFOHEAD(fd);

 

 	sd = (struct char_session_data*)session[fd]->session_data;

@@ -3271,10 +3287,13 @@ int parse_char(int fd) {
 			WFIFOL(fd,2) = cd->char_id;

 			memcpy(WFIFOP(fd,6), mapindex_id2name(cd->last_point.map), MAP_NAME_LENGTH);

 			ShowInfo("Character selection '%s' (account: %d, slot: %d).\n", cd->name, sd->account_id, ch);

-			if (lan_ip_check(p))

-				WFIFOL(fd, 22) = inet_addr(lan_map_ip);

+						    

+			// Andvanced subnet check [LuzZza]

+			if((subnet_map_ip = lan_subnetcheck((long *)p)))

+				WFIFOL(fd,22) = subnet_map_ip;

 			else

-				WFIFOL(fd, 22) = server[i].ip;

+				WFIFOL(fd,22) = server[i].ip;

+

 			WFIFOW(fd,26) = server[i].port;

 			WFIFOSET(fd,28);

 			if (auth_fifo_pos >= AUTH_FIFO_SIZE)

@@ -3760,92 +3779,56 @@ int config_switch(const char *str) {
 	return atoi(str);

 }

 

-//-------------------------------------------

-// Reading Lan Support configuration by [Yor]

-//-------------------------------------------

-int lan_config_read(const char *lancfgName) {

-	int j;

-	struct hostent * h = NULL;

-	char line[1024], w1[1024], w2[1024];

-	FILE *fp;

-

-	// set default configuration

-	strncpy(lan_map_ip, "127.0.0.1", sizeof(lan_map_ip));

-	subneti[0] = 127;

-	subneti[1] = 0;

-	subneti[2] = 0;

-	subneti[3] = 1;

-	for(j = 0; j < 4; j++)

-		subnetmaski[j] = 255;

+//----------------------------------

+// Reading Lan Support configuration

+// Rewrote: Anvanced subnet check [LuzZza]

+//----------------------------------

+int char_lan_config_read(const char *lancfgName) {

 

-	fp = fopen(lancfgName, "r");

-

-	if (fp == NULL) {

-		ShowError("LAN support configuration file not found: %s\n", lancfgName);

+	FILE *fp;

+	int line_num = 0;

+	char line[1024], w1[64], w2[64], w3[64], w4[64], w5[64];

+	

+	if((fp = fopen(lancfgName, "r")) == NULL) {

+		ShowWarning("LAN Support configuration file is not found: %s\n", lancfgName);

 		return 1;

 	}

 

-	ShowInfo("reading configuration file %s...\n", lancfgName);

+	ShowInfo("Reading the configuration file %s...\n", lancfgName);

 

 	while(fgets(line, sizeof(line)-1, fp)) {

-		if (line[0] == '/' && line[1] == '/')

+

+		line_num++;		

+		if ((line[0] == '/' && line[1] == '/') || line[0] == '\n' || line[1] == '\n')

 			continue;

 

 		line[sizeof(line)-1] = '\0';

-		if (sscanf(line, "%[^:]: %[^\r\n]", w1, w2) != 2)

+		if(sscanf(line,"%[^:]: %[^/]/%[^:]:%[^:]:%[^\r\n]", w1, w2, w3, w4, w5) != 5) {

+	

+			ShowWarning("Error syntax of configuration file %s in line %d.\n", lancfgName, line_num);	

 			continue;

+		}

 

 		remove_control_chars((unsigned char *)w1);

 		remove_control_chars((unsigned char *)w2);

-		if (strcmpi(w1, "lan_map_ip") == 0) { // Read map-server Lan IP Address

-			h = gethostbyname(w2);

-			if (h != NULL) {

-				sprintf(lan_map_ip, "%d.%d.%d.%d", (unsigned char)h->h_addr[0], (unsigned char)h->h_addr[1], (unsigned char)h->h_addr[2], (unsigned char)h->h_addr[3]);

-			} else {

-				strncpy(lan_map_ip, w2, sizeof(lan_map_ip));

-				lan_map_ip[sizeof(lan_map_ip)-1] = 0;

-			}

-			ShowStatus("LAN IP of map-server: %s.\n", lan_map_ip);

-		} else if (strcmpi(w1, "subnet") == 0) { // Read Subnetwork

-			for(j = 0; j < 4; j++)

-				subneti[j] = 0;

-			h = gethostbyname(w2);

-			if (h != NULL) {

-				for(j = 0; j < 4; j++)

-					subneti[j] = (unsigned char)h->h_addr[j];

-			} else {

-				sscanf(w2, "%d.%d.%d.%d", &subneti[0], &subneti[1], &subneti[2], &subneti[3]);

-			}

-			ShowStatus("Sub-network of the map-server: %d.%d.%d.%d.\n", subneti[0], subneti[1], subneti[2], subneti[3]);

-		} else if (strcmpi(w1, "subnetmask") == 0){ // Read Subnetwork Mask

-			for(j = 0; j < 4; j++)

-				subnetmaski[j] = 255;

-			h = gethostbyname(w2);

-			if (h != NULL) {

-				for(j = 0; j < 4; j++)

-					subnetmaski[j] = (unsigned char)h->h_addr[j];

-			} else {

-				sscanf(w2, "%d.%d.%d.%d", &subnetmaski[0], &subnetmaski[1], &subnetmaski[2], &subnetmaski[3]);

-			}

-			ShowStatus("Sub-network mask of the map-server: %d.%d.%d.%d.\n", subnetmaski[0], subnetmaski[1], subnetmaski[2], subnetmaski[3]);

-		}

-	}

-	fclose(fp);

+		remove_control_chars((unsigned char *)w3);

+		remove_control_chars((unsigned char *)w4);

+		remove_control_chars((unsigned char *)w5);

 

-	// sub-network check of the map-server

-	{

-		unsigned int a0, a1, a2, a3;

-		unsigned char p[4];

-		sscanf(lan_map_ip, "%d.%d.%d.%d", &a0, &a1, &a2, &a3);

-		p[0] = a0; p[1] = a1; p[2] = a2; p[3] = a3;

-		ShowInfo("LAN test of LAN IP of the map-server...\n");

-		if (lan_ip_check(p) == 0) {

-			ShowError(CL_RED" LAN IP of the map-server doesn't belong to the specified Sub-network."CL_RESET"\n");

+		if(strcmpi(w1, "subnet") == 0) {

+	

+			subnet[subnet_count].subnet = inet_addr(w2);

+			subnet[subnet_count].mask = inet_addr(w3);

+			subnet[subnet_count].char_ip = inet_addr(w4);

+			subnet[subnet_count].map_ip = inet_addr(w5);

+				

+			subnet_count++;

 		}

-	}

 

-	ShowInfo("done reading %s.\n", lancfgName);

+		ShowStatus("Information about %d subnetworks readen.\n", subnet_count);

+	}

 

+	fclose(fp);

 	return 0;

 }

 

@@ -4083,7 +4066,7 @@ int do_init(int argc, char **argv) {
 	mapindex_init(); //Needed here for the start-point reading.

 	start_point.map = mapindex_name2id("new_1-1.gat");

 	char_config_read((argc < 2) ? CHAR_CONF_NAME : argv[1]);

-	lan_config_read((argc > 1) ? argv[1] : LOGIN_LAN_CONF_NAME);

+	char_lan_config_read((argc > 1) ? argv[1] : LOGIN_LAN_CONF_NAME);

 

 	if (strcmp(userid, "s1")==0 && strcmp(passwd, "p1")==0) {

 		ShowError("Using the default user/password s1/p1 is NOT RECOMMENDED.\n");

diff --git a/src/char/char.h b/src/char/char.h
index 743890c68..bd2a786e6 100644
--- a/src/char/char.h
+++ b/src/char/char.h
@@ -12,7 +12,7 @@
 

 #define CHAR_CONF_NAME	"conf/char_athena.conf"

 

-#define LOGIN_LAN_CONF_NAME	"conf/lan_support.conf"

+#define LOGIN_LAN_CONF_NAME	"conf/subnet_athena.conf"

 

 #define DEFAULT_AUTOSAVE_INTERVAL 300*1000