[Twilight Suzuka]

You laugh now, but I've already proven its possible to hook some things out of the Client dll via this method.

[Freecode]

wow......truly amazing idea. using Sockets and MM client side.

[Johnny got his gun]

Are you talking about cl_metamod again... cause VAC loves that. :-)

[PM]

That idea sounds way too unrealistic, and by the way, I would not connect a server which forces me to use its own client dll...

Back on topic:
I've got a simple implementation done, right now it's failing because metamod does not give me access to newdll functions because the gamedll doesn't export them... Argh.

[PM]

Mwah.

My implementation is in CVS.

I've tested it a VERY small bit on the IOS mod.

Metamod comments claim that metamod is not providing newdll functions to plugins when the gamedll doesn't provide them because it doesn't know the answer for ShouldCollide. However I think that a missing ShouldCollide has the effect of a ShouldCollide always returning 1, and this is what mm's shouldcollide wrapper does anyway if there is no gamedll table and no plugins supercede or whatever, so it should not be a problem. I'm tired so I'm sorry if I'm not making any sense.

Here is what I've done to the official mm source from cvs in order for this to work on ios:

dllapi.cpp, line ~480:

remove
	if(!GameDLL.funcs.newapi_table)
		return(FALSE);
alter the comment above that

then
mplugin.cpp around line 867, remove that if block around 
	iface_vers=NEW_DLL_FUNCTIONS_VERSION;
	GET_FUNC_TABLE_FROM_PLUGIN(pfnGetNewDLLFunctions, 
			"GetNewDLLFunctions", newapi_table, 
			NEW_DLL_FUNCTIONS_FN, NEW_DLL_FUNCTIONS,
			&iface_vers, iface_vers, NEW_DLL_FUNCTIONS_VERSION);
	iface_vers=NEW_DLL_FUNCTIONS_VERSION;
	GET_FUNC_TABLE_FROM_PLUGIN(pfnGetNewDLLFunctions_Post, 
			"GetNewDLLFunctions_Post", newapi_post_table, 
			NEW_DLL_FUNCTIONS_FN, NEW_DLL_FUNCTIONS,
			&iface_vers, iface_vers, NEW_DLL_FUNCTIONS_VERSION);

Seems to work fine for me.

Here is my test plugin:

#include <amxmodx>
#include <amxmisc>

// Hi
public plugin_init()
{
    register_plugin("Test", "0.1", "PM");
    register_clcmd("testik", "testik");
}

public testik(id)
{
    log_amx("dispatching three queries for player %d", id);
    query_client_cvar(id, "ex_interp", "myresult");
    query_client_cvar(id, "ex_extrapmax", "myresult");
    query_client_cvar(id, "cl_solid_players", "myresult");
    
    return PLUGIN_HANDLED;
}
public myresult(id, const cvar[], const result[])
{
    log_amx("Query for %d arrived: %s=%s", id, cvar, result);
}

Here is the result:

L 08/28/2005 - 23:51:59: [test.amxx] dispatching three queries for player 1
L 08/28/2005 - 23:51:59: [test.amxx] Query for 1 arrived: ex_interp=0.1
L 08/28/2005 - 23:51:59: [test.amxx] Query for 1 arrived: ex_extrapmax=1.2
L 08/28/2005 - 23:51:59: [test.amxx] Query for 1 arrived: cl_solid_players=1

[evilspy]

Could you make stress test to see if order of queries and result change?

[evilspy]

Originally Posted by Twilight Suzuka With a communication system between a client MM and a server MM in place, we could capture and even alter far more things that simple CVARs and such.

HL message system is encrypted. You cannot change anything like that.

Why would all cheats be hooking client, if there would be such an easy way instead?

[Freecode]

Originally Posted by ghost of evilspy Originally Posted by Twilight Suzuka With a communication system between a client MM and a server MM in place, we could capture and even alter far more things that simple CVARs and such. HL message system is encrypted. You cannot change anything like that. Why would all cheats be hooking client, if there would be such an easy way instead?

evil you shouldnt even have replide to that. its just really funny

[BAILOPAN]

PM: most likely I'll be changing this to be a global callback

otherwise looks good!

[PM]

Originally Posted by BAILOPAN PM: most likely I'll be changing this to be a global callback otherwise looks good!

I think that the ability to specify a result function instead of having a global callback is more useful.

About the stress test: I'll try to do it over the next week, if Steam starts without an internet connection