From 3d3f077e6ff51e5e9d388a16bd73a526310918ad Mon Sep 17 00:00:00 2001
From: Andrei Karas <akaras@inbox.ru>
Date: Mon, 10 Nov 2014 19:04:27 +0300
Subject: disconnect in login server if client version < 2.

---
 src/login/init.c  |  3 +++
 src/login/parse.c | 21 +++++++++++++++++++++
 src/login/parse.h |  1 +
 3 files changed, 25 insertions(+)

diff --git a/src/login/init.c b/src/login/init.c
index 92b6af6..9aab37d 100644
--- a/src/login/init.c
+++ b/src/login/init.c
@@ -31,7 +31,10 @@ HPExport void plugin_init (void)
     session = GET_SYMBOL("session");
     sockt = GET_SYMBOL("sockt");
 
+    login = GET_SYMBOL("login");
+
     addPacket(0x7530, 22, login_parse_version, hpParse_Login);
+    addHookPre("login->parse_client_login", elogin_parse_client_login_pre);
 }
 
 HPExport void server_preinit (void)
diff --git a/src/login/parse.c b/src/login/parse.c
index b50f52e..7b6bb11 100644
--- a/src/login/parse.c
+++ b/src/login/parse.c
@@ -14,12 +14,22 @@
 
 #include "login/parse.h"
 
+int clientVersion = 0;
+
 void login_parse_version(int fd)
 {
     struct login_session_data* sd = (struct login_session_data*)session[fd]->session_data;
     if (!sd)
         return;
 
+    clientVersion = RFIFOL(fd, 2);
+
+    if (clientVersion < 2)
+    {
+        login->login_error(fd, 5);
+        return;
+    }
+
     WFIFOHEAD(fd, 4 + 8);
     WFIFOW(fd, 0) = 0x7531;
     WFIFOW(fd, 2) = 4 + 8;
@@ -27,3 +37,14 @@ void login_parse_version(int fd)
     WFIFOL(fd, 8) = 1;  // server version
     WFIFOSET(fd, WFIFOW(fd,2));
 }
+
+int elogin_parse_client_login_pre(int *fd, struct login_session_data* sd, const char *const ip)
+{
+    if (clientVersion < 2)
+    {
+        login->login_error(*fd, 5);
+        hookStop();
+        return 1;
+    }
+    return 0;
+}
diff --git a/src/login/parse.h b/src/login/parse.h
index 8595bd1..753e23c 100644
--- a/src/login/parse.h
+++ b/src/login/parse.h
@@ -5,5 +5,6 @@
 #define EVOL_LOGIN_PARSE
 
 void login_parse_version(int fd);
+int elogin_parse_client_login_pre(int *fd, struct login_session_data* sd, const char *const ip);
 
 #endif  // EVOL_LOGIN_PARSE
-- 
cgit v1.2.3-70-g09d2