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-rw-r--r--src/network/network_server.cpp36
1 files changed, 36 insertions, 0 deletions
diff --git a/src/network/network_server.cpp b/src/network/network_server.cpp
index b0f3a98c8..6cbfe21ba 100644
--- a/src/network/network_server.cpp
+++ b/src/network/network_server.cpp
@@ -611,6 +611,12 @@ DEF_SERVER_RECEIVE_COMMAND(PACKET_CLIENT_COMPANY_INFO)
DEF_SERVER_RECEIVE_COMMAND(PACKET_CLIENT_NEWGRFS_CHECKED)
{
+ if (cs->status != STATUS_INACTIVE) {
+ /* Illegal call, return error and ignore the packet */
+ SEND_COMMAND(PACKET_SERVER_ERROR)(cs, NETWORK_ERROR_NOT_EXPECTED);
+ return;
+ }
+
NetworkClientInfo *ci = DEREF_CLIENT_INFO(cs);
/* We now want a password from the client else we do not allow him in! */
@@ -627,6 +633,12 @@ DEF_SERVER_RECEIVE_COMMAND(PACKET_CLIENT_NEWGRFS_CHECKED)
DEF_SERVER_RECEIVE_COMMAND(PACKET_CLIENT_JOIN)
{
+ if (cs->status != STATUS_INACTIVE) {
+ /* Illegal call, return error and ignore the packet */
+ SEND_COMMAND(PACKET_SERVER_ERROR)(cs, NETWORK_ERROR_NOT_EXPECTED);
+ return;
+ }
+
char name[NETWORK_CLIENT_NAME_LENGTH];
char unique_id[NETWORK_UNIQUE_ID_LENGTH];
NetworkClientInfo *ci;
@@ -1011,6 +1023,12 @@ DEF_SERVER_RECEIVE_COMMAND(PACKET_CLIENT_QUIT)
DEF_SERVER_RECEIVE_COMMAND(PACKET_CLIENT_ACK)
{
+ if (cs->status < STATUS_AUTH) {
+ /* Illegal call, return error and ignore the packet */
+ SEND_COMMAND(PACKET_SERVER_ERROR)(cs, NETWORK_ERROR_NOT_AUTHORIZED);
+ return;
+ }
+
uint32 frame = p->Recv_uint32();
/* The client is trying to catch up with the server */
@@ -1139,6 +1157,12 @@ void NetworkServerSendChat(NetworkAction action, DestType desttype, int dest, co
DEF_SERVER_RECEIVE_COMMAND(PACKET_CLIENT_CHAT)
{
+ if (cs->status < STATUS_AUTH) {
+ /* Illegal call, return error and ignore the packet */
+ SEND_COMMAND(PACKET_SERVER_ERROR)(cs, NETWORK_ERROR_NOT_AUTHORIZED);
+ return;
+ }
+
NetworkAction action = (NetworkAction)p->Recv_uint8();
DestType desttype = (DestType)p->Recv_uint8();
int dest = p->Recv_uint16();
@@ -1151,6 +1175,12 @@ DEF_SERVER_RECEIVE_COMMAND(PACKET_CLIENT_CHAT)
DEF_SERVER_RECEIVE_COMMAND(PACKET_CLIENT_SET_PASSWORD)
{
+ if (cs->status != STATUS_ACTIVE) {
+ /* Illegal call, return error and ignore the packet */
+ SEND_COMMAND(PACKET_SERVER_ERROR)(cs, NETWORK_ERROR_NOT_EXPECTED);
+ return;
+ }
+
char password[NETWORK_PASSWORD_LENGTH];
const NetworkClientInfo *ci;
@@ -1164,6 +1194,12 @@ DEF_SERVER_RECEIVE_COMMAND(PACKET_CLIENT_SET_PASSWORD)
DEF_SERVER_RECEIVE_COMMAND(PACKET_CLIENT_SET_NAME)
{
+ if (cs->status != STATUS_ACTIVE) {
+ /* Illegal call, return error and ignore the packet */
+ SEND_COMMAND(PACKET_SERVER_ERROR)(cs, NETWORK_ERROR_NOT_EXPECTED);
+ return;
+ }
+
char client_name[NETWORK_CLIENT_NAME_LENGTH];
NetworkClientInfo *ci;