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Merge branch 'packetversion-112' into 'awful-mix' 

1.2 end game: PACKETVERSION support

See merge request SinnamonLat/Kart-Public!12
This commit is contained in:
wolfs 2020-04-20 23:55:39 -04:00
parent f9dad05242 820d4a5f8b
commit 96d1946c8d
3 changed files with 48 additions and 1 deletions
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25
src/d_clisrv.c
View File

@ -1370,8 +1370,12 @@ static boolean CL_SendJoin(void)
localplayers++;
netbuffer->u.clientcfg.localplayers = localplayers;
netbuffer->u.clientcfg._255 = 255;
netbuffer->u.clientcfg.packetversion = PACKETVERSION;
netbuffer->u.clientcfg.version = VERSION;
netbuffer->u.clientcfg.subversion = SUBVERSION;
strncpy(netbuffer->u.clientcfg.application, SRB2APPLICATION,
sizeof netbuffer->u.clientcfg.application);
netbuffer->u.clientcfg.needsdownload = cl_needsdownload;
netbuffer->u.clientcfg.challengenum = cl_challengenum;
memcpy(netbuffer->u.clientcfg.challengeanswer, cl_challengeanswer, MD5_LEN);
@ -1388,8 +1392,12 @@ static void SV_SendServerInfo(INT32 node, tic_t servertime)
#endif
netbuffer->packettype = PT_SERVERINFO;
netbuffer->u.serverinfo._255 = 255;
netbuffer->u.serverinfo.packetversion = PACKETVERSION;
netbuffer->u.serverinfo.version = VERSION;
netbuffer->u.serverinfo.subversion = SUBVERSION;
strncpy(netbuffer->u.serverinfo.application, SRB2APPLICATION,
sizeof netbuffer->u.serverinfo.application);
// return back the time value so client can compute their ping
netbuffer->u.serverinfo.time = (tic_t)LONG(servertime);
netbuffer->u.serverinfo.leveltime = (tic_t)LONG(leveltime);
@ -1875,12 +1883,21 @@ static void SL_InsertServer(serverinfo_pak* info, SINT8 node)
if (serverlistcount >= MAXSERVERLIST)
return; // list full
if (info->_255 != 255)
return;/* old packet format */
if (info->packetversion != PACKETVERSION)
return;/* old new packet format */
if (info->version != VERSION)
return; // Not same version.
if (info->subversion != SUBVERSION)
return; // Close, but no cigar.
if (strcmp(info->application, SRB2APPLICATION))
return;/* that's a different mod */
i = serverlistcount++;
}
@ -3829,6 +3846,12 @@ static void HandleConnect(SINT8 node)
if (bannednode && bannednode[node])
SV_SendRefuse(node, M_GetText("You have been banned\nfrom the server"));
else if (netbuffer->u.clientcfg._255 != 255 ||
netbuffer->u.clientcfg.packetversion != PACKETVERSION)
SV_SendRefuse(node, "Incompatible packet formats.");
else if (strncmp(netbuffer->u.clientcfg.application, SRB2APPLICATION,
sizeof netbuffer->u.clientcfg.application))
SV_SendRefuse(node, "Different SRB2 modifications\nare not compatible.");
else if (netbuffer->u.clientcfg.version != VERSION
|| netbuffer->u.clientcfg.subversion != SUBVERSION)
SV_SendRefuse(node, va(M_GetText("Different SRB2Kart versions cannot\nplay a netgame!\n(server version %d.%d)"), VERSION, SUBVERSION));
@ -3975,6 +3998,8 @@ static void HandleServerInfo(SINT8 node)
const tic_t ticdiff = (ticnow - ticthen)*1000/NEWTICRATE;
netbuffer->u.serverinfo.time = (tic_t)LONG(ticdiff);
netbuffer->u.serverinfo.servername[MAXSERVERNAME-1] = 0;
netbuffer->u.serverinfo.application
[sizeof netbuffer->u.serverinfo.application - 1] = '\0';
netbuffer->u.serverinfo.gametype = (UINT8)((netbuffer->u.serverinfo.gametype == VANILLA_GT_MATCH) ? GT_MATCH : GT_RACE);
SL_InsertServer(&netbuffer->u.serverinfo, node);

21
src/d_clisrv.h
View File

@ -21,6 +21,13 @@
#include "md5.h"
/*
The 'packet version' is used to distinguish packet formats.
This version is independent of VERSION and SUBVERSION. Different
applications may follow different packet versions.
*/
#define PACKETVERSION 0
// Network play related stuff.
// There is a data struct that stores network
// communication related stuff, and another
@ -345,8 +352,13 @@ typedef struct {
#pragma warning(default : 4200)
#endif
#define MAXAPPLICATION 16
typedef struct
{
UINT8 _255;/* see serverinfo_pak */
UINT8 packetversion;
char application[MAXAPPLICATION];
UINT8 version; // Different versions don't work
UINT8 subversion; // Contains build version
UINT8 localplayers;
@ -372,6 +384,14 @@ typedef struct
// This packet is too large
typedef struct
{
/*
In the old packet, 'version' is the first field. Now that field is set
to 255 always, so older versions won't be confused with the new
versions or vice-versa.
*/
UINT8 _255;
UINT8 packetversion;
char application[MAXAPPLICATION];
UINT8 version;
UINT8 subversion;
UINT8 numberofplayer;
@ -381,7 +401,6 @@ typedef struct
UINT8 cheatsenabled;
UINT8 kartvars; // Previously isdedicated, now appropriated for our own nefarious purposes
UINT8 fileneedednum;
SINT8 adminplayer;
tic_t time;
tic_t leveltime;
char servername[MAXSERVERNAME];

3
src/doomdef.h
View File

@ -141,6 +141,9 @@ extern FILE *logstream;
extern char logfilename[1024];
#endif
/* A mod name to further distinguish versions. */
#define SRB2APPLICATION "SRB2Kart"
//#define DEVELOP // Disable this for release builds to remove excessive cheat commands and enable MD5 checking and stuff, all in one go. :3
#ifdef DEVELOP
#define VERSION 0 // Game version