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

1 files changed, 60 insertions, 89 deletions

diff --git a/src/login/login.c b/src/login/login.c
index f24e16499..4f405449b 100644
--- a/src/login/login.c
+++ b/src/login/login.c
@@ -58,9 +58,16 @@ int new_account_flag = 0;
 int bind_ip_set_ = 0;

 char bind_ip_str[128];

 int login_port = 6900;

-char lan_char_ip[16];

-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;

 

 char account_filename[1024] = "save/account.txt";

 char GM_account_filename[1024] = "conf/GM_account.txt";

@@ -2972,34 +2979,44 @@ int parse_admin(int fd) {
 

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

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

+// Rewrote: Adnvanced subnet check [LuzZza]

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

-int lan_ip_check(unsigned char *p) {

+int lan_subnetcheck(unsigned char *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;

+	char *sbn, *msk;

+	

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

+	

+		printf("%ld - %ld - %ld", subnet[i].subnet, subnet[i].mask, (long)p);

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

+			

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

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

+			

+			ShowMessage("Subnet check result: "CL_CYAN"%d.%d.%d.%d/%d.%d.%d.%d"CL_RESET"\n",

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

+			

+			return subnet[i].char_ip;

 		}

 	}

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

-	return lancheck;

+	

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

+	return 0;

 }

 

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

 // Default packet parsing (normal players or administation/char-server connexion requests)

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

 int parse_login(int fd) {

+	

 	struct mmo_account account;

 	int result, j;

 	unsigned int i;

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

 	char ip[16];

+	long subnet_char_ip;

+	

 	RFIFOHEAD(fd);

 

 	sprintf(ip, "%d.%d.%d.%d", p[0], p[1], p[2], p[3]);

@@ -3089,11 +3106,12 @@ int parse_login(int fd) {
 					else

 						ShowInfo("Connection of the account '%s' accepted.\n", account.userid);

 					server_num = 0;

-                                        WFIFOHEAD(fd, 47+32*MAX_SERVERS);

+                    WFIFOHEAD(fd, 47+32*MAX_SERVERS);

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

 						if (server_fd[i] >= 0) {

-							if (lan_ip_check(p))

-								WFIFOL(fd,47+server_num*32) = inet_addr(lan_char_ip);

+						    // Andvanced subnet check [LuzZza]

+							if((subnet_char_ip = lan_subnetcheck(p)))

+								WFIFOL(fd,47+server_num*32) = subnet_char_ip;

 							else

 								WFIFOL(fd,47+server_num*32) = server[i].ip;

 							WFIFOW(fd,47+server_num*32+4) = server[i].port;

@@ -3443,25 +3461,14 @@ int config_switch(const char *str) {
 

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

 // Reading Lan Support configuration

+// Rewrote: Anvanced subnet check [LuzZza]

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

 int login_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_char_ip, "127.0.0.1", sizeof(lan_char_ip));

-	subneti[0] = 127;

-	subneti[1] = 0;

-	subneti[2] = 0;

-	subneti[3] = 1;

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

-		subnetmaski[j] = 255;

-

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

+	FILE *fp;

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

 

-	if (fp == NULL) {

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

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

 		return 1;

 	}

@@ -3469,73 +3476,37 @@ int login_lan_config_read(const char *lancfgName) {
 	ShowInfo("Reading the configuration file %s...\n", lancfgName);

 

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

+

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

 			continue;

 

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

-		memset(w2, 0, sizeof(w2));

-		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. Line skipped.\n", lancfgName);	

 			continue;

+		}

 

 		remove_control_chars((unsigned char *)w1);

 		remove_control_chars((unsigned char *)w2);

-		if (strcmpi(w1, "lan_char_ip") == 0) { // Read Char-Server Lan IP Address

-			memset(lan_char_ip, 0, sizeof(lan_char_ip));

-			h = gethostbyname(w2);

-			if (h != NULL) {

-				sprintf(lan_char_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_char_ip, w2, sizeof(lan_char_ip));

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

-			}

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

 

-	// log the LAN configuration

-	login_log("The LAN configuration of the server is set:" RETCODE);

-	login_log("- with LAN IP of char-server: %s." RETCODE, lan_char_ip);

-	login_log("- with the sub-network of the char-server: %d.%d.%d.%d/%d.%d.%d.%d." RETCODE,

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

-

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

-	{

-		unsigned int a0, a1, a2, a3;

-		unsigned char p[4];

-		sscanf(lan_char_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 char-server: ");

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

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

-			login_log("***ERROR: LAN IP of the char-server doesn't belong to the specified Sub-network." RETCODE);

+		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("Finished reading %s.\n", lancfgName);

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

+	}

 

+	fclose(fp);

 	return 0;

 }