3 files changed, 34 insertions, 0 deletions
diff --git a/src/net/eathena/loginhandler.cpp b/src/net/eathena/loginhandler.cpp
index cabc9fad7..3293317c8 100644
--- a/src/net/eathena/loginhandler.cpp
+++ b/src/net/eathena/loginhandler.cpp
@@ -35,6 +35,10 @@
 
 #include "debug.h"
 
+extern int packetVersionMain;
+extern int packetVersionRe;
+extern int packets_zero;
+
 namespace EAthena
 {
 
@@ -164,4 +168,18 @@ void LoginHandler::updatePacketVersion() const
     updateProtocol();
 }
 
+void LoginHandler::sendMobileCode(const BeingId accountId,
+                                  const std::string &code) const
+{
+    if (packetVersionMain < 20181114 &&
+        packetVersionRe < 20181114)
+    {
+        return;
+    }
+    createOutPacket(CMSG_LOGIN_MOBILE_OTP);
+    outMsg.writeInt16(14, "len");
+    outMsg.writeBeingId(accountId, "account id");
+    outMsg.writeStringNoLog(code, 6, "code");
+}
+
 }  // namespace EAthena
diff --git a/src/net/eathena/loginhandler.h b/src/net/eathena/loginhandler.h
index c50b5c465..87d5e16cf 100644
--- a/src/net/eathena/loginhandler.h
+++ b/src/net/eathena/loginhandler.h
@@ -58,6 +58,9 @@ class LoginHandler final : public Ea::LoginHandler
 
         void updatePacketVersion() const override final;
 
+        void sendMobileCode(const BeingId accountId,
+                            const std::string &code) const override final;
+
     private:
         void sendLoginRegister(const std::string &restrict username,
                                const std::string &restrict password,
diff --git a/src/net/eathena/packetsout.inc b/src/net/eathena/packetsout.inc
index 1b515706b..d9b269ba9 100644
--- a/src/net/eathena/packetsout.inc
+++ b/src/net/eathena/packetsout.inc
@@ -342,6 +342,7 @@ packet(CMSG_PLAYER_SET_TITLE,             0x0000,   0, nullptr);
 packet(CMSG_CHANGE_DRESS,                 0x0000,   0, nullptr);
 packet(CMSG_INSTANCE_COMMAND,             0x0000,   0, nullptr);
 packet(CMSG_ACHIEVEMENT_GET_REWARD,       0x0000,   0, nullptr);
+packet(CMSG_LOGIN_MOBILE_OTP,             0x0000,   0, nullptr);
 #else
 // 20040713
 if (packetVersion >= 20040713)
@@ -1462,4 +1463,16 @@ if (packetVersionRe >= 20180718)
     packet(CMSG_PLAYER_SELECT_STYLE,      0x0afc,  16, clif->pReqStyleChange);
 }
 
+// 20181114 main
+if (packetVersionMain >= 20181114)
+{
+    packet(CMSG_LOGIN_MOBILE_OTP,         0x09a3,  -1, lclif->p->parse_CA_ACK_MOBILE_OTP);
+}
+
+// 20181114 re
+if (packetVersionRe >= 20181114)
+{
+    packet(CMSG_LOGIN_MOBILE_OTP,         0x09a3,  -1, lclif->p->parse_CA_ACK_MOBILE_OTP);
+}
+
 #endif