eukara/fteqw
1
0
Fork 0
forked from fte/fteqw
Code Pull requests Activity

Try to clean up our pext handshake code a smidge.

Browse source 
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@6295 fc73d0e0-1445-4013-8a0c-d673dee63da5
This commit is contained in:
Spoike 2022-07-28 02:17:33 +00:00
parent 62e8bb5774
commit 9abf7b74b3
1 changed files with 126 additions and 118 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

244
engine/client/cl_main.c
View file

@ -297,15 +297,23 @@ static struct
DTLS_ACTIVE, DTLS_ACTIVE,
} dtlsupgrade; } dtlsupgrade;
#endif #endif
int mtu;
unsigned int compresscrc;
int protocol; //nq/qw/q2/q3. guessed based upon server replies int protocol; //nq/qw/q2/q3. guessed based upon server replies
int subprotocol; //the monkeys are trying to eat me. int subprotocol; //the monkeys are trying to eat me.
unsigned int fteext1; struct
unsigned int fteext2; {
unsigned int ezext1; //flags
unsigned int fte1;
unsigned int fte2;
unsigned int ez1;
int mtu; //0 for unsupported, otherwise a size.
unsigned int compresscrc;//0 for unsupported, otherwise the peer's hash
unsigned char guidsalt[64];//server->client (for servers that want to share guids between themselves, with noticably lower security)
} ext;
int qport; int qport;
int challenge; //tracked as part of guesswork based upon what replies we get. int challenge; //tracked as part of guesswork based upon what replies we get.
int clchallenge;
double time; //for connection retransmits double time; //for connection retransmits
qboolean clogged; //ignore time... qboolean clogged; //ignore time...
enum coninfomode_e enum coninfomode_e
@ -316,7 +324,7 @@ static struct
} mode; } mode;
int defaultport; int defaultport;
int tries; //increased each try, every fourth trys nq connect packets. int tries; //increased each try, every fourth trys nq connect packets.
unsigned char guid[64]; unsigned char guid[64]; //client->server guid (so doesn't change with transfers)
// qbyte fingerprint[5*4]; //sha1 hash of accepted dtls certs // qbyte fingerprint[5*4]; //sha1 hash of accepted dtls certs
} connectinfo; } connectinfo;
@ -523,7 +531,7 @@ void CL_SupportedFTEExtensions(unsigned int *pext1, unsigned int *pext2, unsigne
*ezpext1 = ezprotextsupported1; *ezpext1 = ezprotextsupported1;
} }
char *CL_GUIDString(netadr_t *adr, const char *guidstring) char *CL_GUIDString(netadr_t *adr)
{ {
static qbyte buf[2048]; static qbyte buf[2048];
static int buflen; static int buflen;
@ -532,10 +540,10 @@ char *CL_GUIDString(netadr_t *adr, const char *guidstring)
void *blocks[2]; void *blocks[2];
int lens[2]; int lens[2];
if (!*cl_sendguid.string && guidstring && *guidstring) if (!*cl_sendguid.string && *connectinfo.ext.guidsalt)
{ {
serveraddr[0] = '#'; //leading hash is to stop servers from being able to scrape from other servers. serveraddr[0] = '#'; //leading hash is to stop servers from being able to scrape from other servers (ones that don't use a custom/reproducible salt).
Q_strncpyz(serveraddr+1, guidstring, sizeof(serveraddr)-1); Q_strncpyz(serveraddr+1, connectinfo.ext.guidsalt, sizeof(serveraddr)-1);
} }
else if (cl_sendguid.ival == 2) else if (cl_sendguid.ival == 2)
*serveraddr = 0; *serveraddr = 0;
@ -593,20 +601,13 @@ CL_SendConnectPacket
called by CL_Connect_f and CL_CheckResend called by CL_Connect_f and CL_CheckResend
====================== ======================
*/ */
void CL_SendConnectPacket (netadr_t *to, int mtu, static void CL_SendConnectPacket (netadr_t *to)
unsigned int ftepext1, unsigned int ftepext2, unsigned int ezpext1,
int compressioncrc,
const char *guidhash
/*, ...*/)
{ {
extern cvar_t qport; extern cvar_t qport;
netadr_t addr; netadr_t addr;
char data[2048]; char data[2048];
char *info; char *info;
double t1, t2; double t1, t2;
int fteprotextsupported1=0;
int fteprotextsupported2=0;
int ezprotextsupported1=0;
char *a; char *a;
// JACK: Fixed bug where DNS lookups would cause two connects real fast // JACK: Fixed bug where DNS lookups would cause two connects real fast
@ -618,11 +619,22 @@ void CL_SendConnectPacket (netadr_t *to, int mtu,
if (cl_nopext.ival) //imagine it's an unenhanced server if (cl_nopext.ival) //imagine it's an unenhanced server
{ {
compressioncrc = 0; connectinfo.ext.compresscrc = 0;
} }
if (connectinfo.protocol == CP_QUAKEWORLD)
{
int fteprotextsupported1=0;
int fteprotextsupported2=0;
int ezprotextsupported1=0;
CL_SupportedFTEExtensions(&fteprotextsupported1, &fteprotextsupported2, &ezprotextsupported1);
connectinfo.ext.fte1 &= fteprotextsupported1;
connectinfo.ext.fte2 &= fteprotextsupported2;
connectinfo.ext.ez1 &= ezprotextsupported1;
}
#ifdef Q2CLIENT #ifdef Q2CLIENT
if (connectinfo.protocol == CP_QUAKE2) else if (connectinfo.protocol == CP_QUAKE2)
{ {
if (!(scr_fov.flags & CVAR_USERINFO)) if (!(scr_fov.flags & CVAR_USERINFO))
{ //q2 does server-controlled fov, so make sure the cvar is flagged properly. { //q2 does server-controlled fov, so make sure the cvar is flagged properly.
@ -631,31 +643,18 @@ void CL_SendConnectPacket (netadr_t *to, int mtu,
Cvar_Set(&scr_fov, scr_fov.string); //make sure the userinfo is set properly. Cvar_Set(&scr_fov, scr_fov.string); //make sure the userinfo is set properly.
} }
fteprotextsupported1 = ftepext1 & (PEXT_MODELDBL|PEXT_SOUNDDBL|PEXT_SPLITSCREEN); connectinfo.ext.fte1 &= (PEXT_MODELDBL|PEXT_SOUNDDBL|PEXT_SPLITSCREEN);
fteprotextsupported2 = 0; connectinfo.ext.fte2 = 0;
ezprotextsupported1 = 0; connectinfo.ext.ez1 = 0;
} }
else
#endif #endif
else
{ {
CL_SupportedFTEExtensions(&fteprotextsupported1, &fteprotextsupported2, &ezprotextsupported1); connectinfo.ext.fte1 = 0;
connectinfo.ext.fte2 = 0;
fteprotextsupported1 &= ftepext1; connectinfo.ext.ez1 = 0;
fteprotextsupported2 &= ftepext2;
ezprotextsupported1 &= ezpext1;
if (connectinfo.protocol != CP_QUAKEWORLD)
{
fteprotextsupported1 = 0;
fteprotextsupported2 = 0;
ezprotextsupported1 = 0;
}
} }
connectinfo.fteext1 = fteprotextsupported1;
connectinfo.fteext2 = fteprotextsupported2;
connectinfo.ezext1 = ezprotextsupported1;
t1 = Sys_DoubleTime (); t1 = Sys_DoubleTime ();
if (!to) if (!to)
@ -718,7 +717,8 @@ void CL_SendConnectPacket (netadr_t *to, int mtu,
//the info itself //the info itself
{ {
static const char *prioritykeys[] = {"name", "password", "spectator", "lang", "rate", "team", "topcolor", "bottomcolor", "skin", "_", "*", NULL}; static const char *prioritykeys[] = {"name", "password", "spectator", "lang", "rate", "team", "topcolor", "bottomcolor", "skin", "_", "*", NULL};
InfoBuf_ToString(&cls.userinfo[0], data+strlen(data), sizeof(data)-strlen(data), prioritykeys, NULL, NULL, &cls.userinfosync, &cls.userinfo[0]); static const char *ignorekeys[] = {"prx", "*z_ext", NULL};
InfoBuf_ToString(&cls.userinfo[0], data+strlen(data), sizeof(data)-strlen(data), prioritykeys, ignorekeys, NULL, &cls.userinfosync, &cls.userinfo[0]);
} }
if (connectinfo.protocol == CP_QUAKEWORLD) //zquake extension info. if (connectinfo.protocol == CP_QUAKEWORLD) //zquake extension info.
Q_strncatz(data, va("\\*z_ext\\%i", CLIENT_SUPPORTED_Z_EXTENSIONS), sizeof(data)); Q_strncatz(data, va("\\*z_ext\\%i", CLIENT_SUPPORTED_Z_EXTENSIONS), sizeof(data));
@ -726,19 +726,19 @@ void CL_SendConnectPacket (netadr_t *to, int mtu,
Q_strncatz(data, "\"", sizeof(data)); Q_strncatz(data, "\"", sizeof(data));
if (connectinfo.protocol == CP_QUAKE2 && connectinfo.subprotocol == PROTOCOL_VERSION_R1Q2) if (connectinfo.protocol == CP_QUAKE2 && connectinfo.subprotocol == PROTOCOL_VERSION_R1Q2)
Q_strncatz(data, va(" %d %d", mtu, 1905), sizeof(data)); //mti, sub-sub-version Q_strncatz(data, va(" %d %d", connectinfo.ext.mtu, 1905), sizeof(data)); //mti, sub-sub-version
else if (connectinfo.protocol == CP_QUAKE2 && connectinfo.subprotocol == PROTOCOL_VERSION_Q2PRO) else if (connectinfo.protocol == CP_QUAKE2 && connectinfo.subprotocol == PROTOCOL_VERSION_Q2PRO)
Q_strncatz(data, va(" %d 0 0 %d", mtu, 1021), sizeof(data)); //mtu, netchan-fragmentation, zlib, sub-sub-version Q_strncatz(data, va(" %d 0 0 %d", connectinfo.ext.mtu, 1021), sizeof(data)); //mtu, netchan-fragmentation, zlib, sub-sub-version
Q_strncatz(data, "\n", sizeof(data)); Q_strncatz(data, "\n", sizeof(data));
if (ftepext1) if (connectinfo.ext.fte1)
Q_strncatz(data, va("0x%x 0x%x\n", PROTOCOL_VERSION_FTE1, fteprotextsupported1), sizeof(data)); Q_strncatz(data, va("0x%x 0x%x\n", PROTOCOL_VERSION_FTE1, connectinfo.ext.fte1), sizeof(data));
if (ftepext2) if (connectinfo.ext.fte2)
Q_strncatz(data, va("0x%x 0x%x\n", PROTOCOL_VERSION_FTE2, fteprotextsupported2), sizeof(data)); Q_strncatz(data, va("0x%x 0x%x\n", PROTOCOL_VERSION_FTE2, connectinfo.ext.fte2), sizeof(data));
if (ezpext1) if (connectinfo.ext.ez1)
Q_strncatz(data, va("0x%x 0x%x\n", PROTOCOL_VERSION_EZQUAKE1, ezprotextsupported1), sizeof(data)); Q_strncatz(data, va("0x%x 0x%x\n", PROTOCOL_VERSION_EZQUAKE1, connectinfo.ext.ez1), sizeof(data));
{ {
int ourmtu; int ourmtu;
@ -750,25 +750,22 @@ void CL_SendConnectPacket (netadr_t *to, int mtu,
ourmtu = 1440; //a safe bet. servers have an unsafe bet by default ourmtu = 1440; //a safe bet. servers have an unsafe bet by default
if (ourmtu < 0) if (ourmtu < 0)
ourmtu = 0; ourmtu = 0;
if (mtu > ourmtu) if (connectinfo.ext.mtu > ourmtu)
mtu = ourmtu; connectinfo.ext.mtu = ourmtu;
connectinfo.mtu = mtu & ~7; connectinfo.ext.mtu &= ~7;
if (connectinfo.mtu > 0) if (connectinfo.ext.mtu > 0)
Q_strncatz(data, va("0x%x %i\n", PROTOCOL_VERSION_FRAGMENT, connectinfo.mtu), sizeof(data)); Q_strncatz(data, va("0x%x %i\n", PROTOCOL_VERSION_FRAGMENT, connectinfo.ext.mtu), sizeof(data));
} }
#ifdef HUFFNETWORK #ifdef HUFFNETWORK
if (compressioncrc && net_compress.ival && Huff_CompressionCRC(compressioncrc)) if (connectinfo.ext.compresscrc && net_compress.ival && Huff_CompressionCRC(connectinfo.ext.compresscrc))
{ Q_strncatz(data, va("0x%x 0x%x\n", PROTOCOL_VERSION_HUFFMAN, LittleLong(connectinfo.ext.compresscrc)), sizeof(data));
Q_strncatz(data, va("0x%x 0x%x\n", PROTOCOL_VERSION_HUFFMAN, LittleLong(compressioncrc)), sizeof(data));
connectinfo.compresscrc = compressioncrc;
}
else else
#endif #endif
connectinfo.compresscrc = 0; connectinfo.ext.compresscrc = 0;
info = CL_GUIDString(to, guidhash); info = CL_GUIDString(to);
if (info) if (info)
Q_strncatz(data, va("0x%x \"%s\"\n", PROTOCOL_INFO_GUID, info), sizeof(data)); Q_strncatz(data, va("0x%x \"%s\"\n", PROTOCOL_INFO_GUID, info), sizeof(data));
@ -923,6 +920,11 @@ void CL_CheckForResend (void)
NET_InitClient(sv.state != ss_clustermode); NET_InitClient(sv.state != ss_clustermode);
//netchan extensions... we skip the getchallenge part so we need to set these up still.
connectinfo.ext.mtu = 8192-16;
connectinfo.ext.compresscrc = 0;
Q_strncpyz(connectinfo.ext.guidsalt, sv_guidhash.string, sizeof(connectinfo.ext.guidsalt));
cls.state = ca_disconnected; cls.state = ca_disconnected;
switch (svs.gametype) switch (svs.gametype)
{ {
@ -935,9 +937,9 @@ void CL_CheckForResend (void)
case GT_QUAKE2: case GT_QUAKE2:
connectinfo.protocol = CP_QUAKE2; connectinfo.protocol = CP_QUAKE2;
connectinfo.subprotocol = PROTOCOL_VERSION_Q2; connectinfo.subprotocol = PROTOCOL_VERSION_Q2;
connectinfo.fteext1 = PEXT_MODELDBL|PEXT_SOUNDDBL|PEXT_SPLITSCREEN; connectinfo.ext.fte1 = PEXT_MODELDBL|PEXT_SOUNDDBL|PEXT_SPLITSCREEN;
connectinfo.fteext2 = 0; connectinfo.ext.fte2 = 0;
connectinfo.ezext1 = 0; connectinfo.ext.ez1 = 0;
break; break;
#endif #endif
default: default:
@ -948,17 +950,17 @@ void CL_CheckForResend (void)
//for hexen2 we always force fte's native qw protocol. other protocols won't cut it. //for hexen2 we always force fte's native qw protocol. other protocols won't cut it.
connectinfo.protocol = CP_QUAKEWORLD; connectinfo.protocol = CP_QUAKEWORLD;
connectinfo.subprotocol = PROTOCOL_VERSION_QW; connectinfo.subprotocol = PROTOCOL_VERSION_QW;
connectinfo.fteext1 = Net_PextMask(PROTOCOL_VERSION_FTE1, false); connectinfo.ext.fte1 = Net_PextMask(PROTOCOL_VERSION_FTE1, false);
connectinfo.fteext2 = Net_PextMask(PROTOCOL_VERSION_FTE2, false); connectinfo.ext.fte2 = Net_PextMask(PROTOCOL_VERSION_FTE2, false);
connectinfo.ezext1 = Net_PextMask(PROTOCOL_VERSION_EZQUAKE1, false) & EZPEXT1_CLIENTADVERTISE; connectinfo.ext.ez1 = Net_PextMask(PROTOCOL_VERSION_EZQUAKE1, false) & EZPEXT1_CLIENTADVERTISE;
} }
else if (!strcmp(lbp, "qwid") || !strcmp(lbp, "idqw")) else if (!strcmp(lbp, "qwid") || !strcmp(lbp, "idqw"))
{ //for recording .qwd files in any client { //for recording .qwd files in any client
connectinfo.protocol = CP_QUAKEWORLD; connectinfo.protocol = CP_QUAKEWORLD;
connectinfo.subprotocol = PROTOCOL_VERSION_QW; connectinfo.subprotocol = PROTOCOL_VERSION_QW;
connectinfo.fteext1 = 0; connectinfo.ext.fte1 = 0;
connectinfo.fteext2 = 0; connectinfo.ext.fte2 = 0;
connectinfo.ezext1 = 0; connectinfo.ext.ez1 = 0;
} }
#ifdef Q3CLIENT #ifdef Q3CLIENT
else if (!strcmp(lbp, "q3")) else if (!strcmp(lbp, "q3"))
@ -976,9 +978,9 @@ void CL_CheckForResend (void)
{ {
connectinfo.protocol = CP_QUAKEWORLD; connectinfo.protocol = CP_QUAKEWORLD;
connectinfo.subprotocol = PROTOCOL_VERSION_QW; connectinfo.subprotocol = PROTOCOL_VERSION_QW;
connectinfo.fteext1 = Net_PextMask(PROTOCOL_VERSION_FTE1, false); connectinfo.ext.fte1 = Net_PextMask(PROTOCOL_VERSION_FTE1, false);
connectinfo.fteext2 = Net_PextMask(PROTOCOL_VERSION_FTE2, false); connectinfo.ext.fte2 = Net_PextMask(PROTOCOL_VERSION_FTE2, false);
connectinfo.ezext1 = Net_PextMask(PROTOCOL_VERSION_EZQUAKE1, false) & EZPEXT1_CLIENTADVERTISE; connectinfo.ext.ez1 = Net_PextMask(PROTOCOL_VERSION_EZQUAKE1, false) & EZPEXT1_CLIENTADVERTISE;
} }
} }
else if (!strcmp(lbp, "fitz") || !strcmp(lbp, "rmqe") || else if (!strcmp(lbp, "fitz") || !strcmp(lbp, "rmqe") ||
@ -1032,18 +1034,18 @@ void CL_CheckForResend (void)
{ {
connectinfo.protocol = CP_NETQUAKE; connectinfo.protocol = CP_NETQUAKE;
connectinfo.subprotocol = CPNQ_FITZ666; connectinfo.subprotocol = CPNQ_FITZ666;
connectinfo.fteext1 = Net_PextMask(PROTOCOL_VERSION_FTE1, true); connectinfo.ext.fte1 = Net_PextMask(PROTOCOL_VERSION_FTE1, true);
connectinfo.fteext2 = Net_PextMask(PROTOCOL_VERSION_FTE2, true); connectinfo.ext.fte2 = Net_PextMask(PROTOCOL_VERSION_FTE2, true);
connectinfo.ezext1 = Net_PextMask(PROTOCOL_VERSION_EZQUAKE1, true) & EZPEXT1_CLIENTADVERTISE; connectinfo.ext.ez1 = Net_PextMask(PROTOCOL_VERSION_EZQUAKE1, true) & EZPEXT1_CLIENTADVERTISE;
} }
#endif #endif
else else
{ //protocol wasn't recognised, and we didn't take the nq fallback, so that must mean we're going for qw. { //protocol wasn't recognised, and we didn't take the nq fallback, so that must mean we're going for qw.
connectinfo.protocol = CP_QUAKEWORLD; connectinfo.protocol = CP_QUAKEWORLD;
connectinfo.subprotocol = PROTOCOL_VERSION_QW; connectinfo.subprotocol = PROTOCOL_VERSION_QW;
connectinfo.fteext1 = Net_PextMask(PROTOCOL_VERSION_FTE1, false); connectinfo.ext.fte1 = Net_PextMask(PROTOCOL_VERSION_FTE1, false);
connectinfo.fteext2 = Net_PextMask(PROTOCOL_VERSION_FTE2, false); connectinfo.ext.fte2 = Net_PextMask(PROTOCOL_VERSION_FTE2, false);
connectinfo.ezext1 = Net_PextMask(PROTOCOL_VERSION_EZQUAKE1, false) & EZPEXT1_CLIENTADVERTISE; connectinfo.ext.ez1 = Net_PextMask(PROTOCOL_VERSION_EZQUAKE1, false) & EZPEXT1_CLIENTADVERTISE;
} }
#ifdef NETPREPARSE #ifdef NETPREPARSE
@ -1057,9 +1059,9 @@ void CL_CheckForResend (void)
{ {
connectinfo.protocol = CP_QUAKEWORLD; connectinfo.protocol = CP_QUAKEWORLD;
connectinfo.subprotocol = PROTOCOL_VERSION_QW; connectinfo.subprotocol = PROTOCOL_VERSION_QW;
connectinfo.fteext1 = Net_PextMask(PROTOCOL_VERSION_FTE1, false); connectinfo.ext.fte1 = Net_PextMask(PROTOCOL_VERSION_FTE1, false);
connectinfo.fteext2 = Net_PextMask(PROTOCOL_VERSION_FTE2, false); connectinfo.ext.fte2 = Net_PextMask(PROTOCOL_VERSION_FTE2, false);
connectinfo.ezext1 = Net_PextMask(PROTOCOL_VERSION_EZQUAKE1, false) & EZPEXT1_CLIENTADVERTISE; connectinfo.ext.ez1 = Net_PextMask(PROTOCOL_VERSION_EZQUAKE1, false) & EZPEXT1_CLIENTADVERTISE;
} }
else if (progstype != PROG_QW && cls.protocol == CP_QUAKEWORLD) else if (progstype != PROG_QW && cls.protocol == CP_QUAKEWORLD)
{ {
@ -1073,9 +1075,9 @@ void CL_CheckForResend (void)
{ {
connectinfo.protocol = CP_QUAKEWORLD; connectinfo.protocol = CP_QUAKEWORLD;
connectinfo.subprotocol = PROTOCOL_VERSION_QW; connectinfo.subprotocol = PROTOCOL_VERSION_QW;
connectinfo.fteext1 = Net_PextMask(PROTOCOL_VERSION_FTE1, false); connectinfo.ext.fte1 = Net_PextMask(PROTOCOL_VERSION_FTE1, false);
connectinfo.fteext2 = Net_PextMask(PROTOCOL_VERSION_FTE2, false); connectinfo.ext.fte2 = Net_PextMask(PROTOCOL_VERSION_FTE2, false);
connectinfo.ezext1 = Net_PextMask(PROTOCOL_VERSION_EZQUAKE1, false) & EZPEXT1_CLIENTADVERTISE; connectinfo.ext.ez1 = Net_PextMask(PROTOCOL_VERSION_EZQUAKE1, false) & EZPEXT1_CLIENTADVERTISE;
} }
#ifdef NQPROT #ifdef NQPROT
else if (cls.demorecording == DPB_NETQUAKE && cls.protocol != CP_NETQUAKE) else if (cls.demorecording == DPB_NETQUAKE && cls.protocol != CP_NETQUAKE)
@ -1090,7 +1092,7 @@ void CL_CheckForResend (void)
{ {
connectinfo.protocol = CP_QUAKE2; connectinfo.protocol = CP_QUAKE2;
connectinfo.subprotocol = PROTOCOL_VERSION_Q2; connectinfo.subprotocol = PROTOCOL_VERSION_Q2;
connectinfo.fteext1 = PEXT_MODELDBL|PEXT_SOUNDDBL|PEXT_SPLITSCREEN; connectinfo.ext.fte1 = PEXT_MODELDBL|PEXT_SOUNDDBL|PEXT_SPLITSCREEN;
//FIXME: use pext. //FIXME: use pext.
} }
#endif #endif
@ -1173,7 +1175,7 @@ void CL_CheckForResend (void)
{ {
if (!connectinfo.challenge) if (!connectinfo.challenge)
connectinfo.challenge = rand(); connectinfo.challenge = rand();
CL_SendConnectPacket (NULL, 8192-16, connectinfo.fteext1, connectinfo.fteext2, connectinfo.ezext1, 0, sv_guidhash.string); CL_SendConnectPacket (NULL);
} }
return; return;
@ -1298,11 +1300,14 @@ void CL_CheckForResend (void)
/*NOTE: ioq3 has <challenge> <gamename> args. yes, a challenge to get a challenge.*/ /*NOTE: ioq3 has <challenge> <gamename> args. yes, a challenge to get a challenge.*/
if (contype & 1) if (contype & 1)
{ {
Q_snprintfz (data, sizeof(data), "%c%c%c%cgetchallenge\n", 255, 255, 255, 255); char tmp[256];
//vanilla: Q_snprintfz (data, sizeof(data), "%c%c%c%cgetchallenge\n", 255, 255, 255, 255);
Q_snprintfz (data, sizeof(data), "%c%c%c%cgetchallenge %i %s\n", 255, 255, 255, 255, connectinfo.clchallenge, COM_QuotedString(com_protocolname.string, tmp, sizeof(tmp), false));
switch(NET_SendPacket (cls.sockets, strlen(data), data, to)) switch(NET_SendPacket (cls.sockets, strlen(data), data, to))
{ {
case NETERR_CLOGGED: //temporary failure case NETERR_CLOGGED: //temporary failure
connectinfo.clogged = true; connectinfo.clogged = true; //inhibits the wait between sends
break;
case NETERR_SENT: //yay, works! case NETERR_SENT: //yay, works!
break; break;
default: default:
@ -1341,7 +1346,10 @@ void CL_CheckForResend (void)
/*FTE servers will detect this string and treat it as a qw challenge instead (if it allows qw clients), so protocol choice is deterministic*/ /*FTE servers will detect this string and treat it as a qw challenge instead (if it allows qw clients), so protocol choice is deterministic*/
if (contype & 1) if (contype & 1)
MSG_WriteString(&sb, "getchallenge"); {
char tmp[256];
MSG_WriteString(&sb, va("%c%c%c%cgetchallenge %i %s\n", 255, 255, 255, 255, connectinfo.clchallenge, COM_QuotedString(com_protocolname.string, tmp, sizeof(tmp), false)));
}
} }
*(int*)sb.data = LongSwap(NETFLAG_CTL | sb.cursize); *(int*)sb.data = LongSwap(NETFLAG_CTL | sb.cursize);
@ -3378,12 +3386,9 @@ void CL_ConnectionlessPacket (void)
static unsigned int lasttime = 0xdeadbeef; static unsigned int lasttime = 0xdeadbeef;
static netadr_t lastadr; static netadr_t lastadr;
unsigned int curtime = Sys_Milliseconds(); unsigned int curtime = Sys_Milliseconds();
unsigned long ftepext1= 0, ftepext2 = 0, ezpext1 = 0, huffcrc=0, mtu=0;
#ifdef HAVE_DTLS #ifdef HAVE_DTLS
int candtls = 0; //0=no,1=optional,2=mandatory int candtls = 0; //0=no,1=optional,2=mandatory
#endif #endif
char guidhash[256];
*guidhash = 0;
s = MSG_ReadString (); s = MSG_ReadString ();
COM_Parse(s); COM_Parse(s);
@ -3425,9 +3430,11 @@ void CL_ConnectionlessPacket (void)
return; return;
lasttime = curtime; lasttime = curtime;
memset(&connectinfo.ext, 0, sizeof(connectinfo.ext));
connectinfo.protocol = CP_QUAKE3; connectinfo.protocol = CP_QUAKE3;
connectinfo.challenge = atoi(s+17); connectinfo.challenge = atoi(s+17);
CL_SendConnectPacket (&net_from, 0, 0, 0, 0, 0/*, ...*/, NULL); CL_SendConnectPacket (&net_from);
} }
else else
{ {
@ -3515,6 +3522,7 @@ void CL_ConnectionlessPacket (void)
s = COM_Parse(s); s = COM_Parse(s);
connectinfo.challenge = atoi(com_token); connectinfo.challenge = atoi(com_token);
memset(&connectinfo.ext, 0, sizeof(connectinfo.ext));
while((s = COM_Parse(s))) while((s = COM_Parse(s)))
{ {
@ -3554,15 +3562,15 @@ void CL_ConnectionlessPacket (void)
switch(c) switch(c)
{ {
case PROTOCOL_INFO_GUID: case PROTOCOL_INFO_GUID:
if (len > sizeof(guidhash)-1) if (len > sizeof(connectinfo.ext.guidsalt)-1)
{ {
MSG_ReadData(guidhash, sizeof(guidhash)); MSG_ReadData(connectinfo.ext.guidsalt, sizeof(connectinfo.ext.guidsalt));
MSG_ReadSkip(len-sizeof(guidhash)); MSG_ReadSkip(len-sizeof(connectinfo.ext.guidsalt));
len = sizeof(guidhash)-1; len = sizeof(connectinfo.ext.guidsalt)-1;
} }
else else
MSG_ReadData(guidhash, len); MSG_ReadData(connectinfo.ext.guidsalt, len);
guidhash[len] = 0; connectinfo.ext.guidsalt[len] = 0;
break; break;
default: default:
MSG_ReadSkip(len); /*payload*/ MSG_ReadSkip(len); /*payload*/
@ -3574,17 +3582,17 @@ void CL_ConnectionlessPacket (void)
unsigned int l = MSG_ReadLong(); unsigned int l = MSG_ReadLong();
switch(cmd) switch(cmd)
{ {
case PROTOCOL_VERSION_FTE1: ftepext1 = l; break; case PROTOCOL_VERSION_FTE1: connectinfo.ext.fte1 = l; break;
case PROTOCOL_VERSION_FTE2: ftepext2 = l; break; case PROTOCOL_VERSION_FTE2: connectinfo.ext.fte2 = l; break;
case PROTOCOL_VERSION_EZQUAKE1: ezpext1 = l; break; case PROTOCOL_VERSION_EZQUAKE1: connectinfo.ext.ez1 = l; break;
case PROTOCOL_VERSION_FRAGMENT: mtu = l; break; case PROTOCOL_VERSION_FRAGMENT: connectinfo.ext.mtu = l; break;
#ifdef HAVE_DTLS #ifdef HAVE_DTLS
case PROTOCOL_VERSION_DTLSUPGRADE: candtls = l; break; //0:not enabled. 1:explicit use allowed. 2:favour it. 3: require it case PROTOCOL_VERSION_DTLSUPGRADE: candtls = l; break; //0:not enabled. 1:explicit use allowed. 2:favour it. 3: require it
#endif #endif
#ifdef HUFFNETWORK #ifdef HUFFNETWORK
case PROTOCOL_VERSION_HUFFMAN: huffcrc = l; break; case PROTOCOL_VERSION_HUFFMAN: connectinfo.ext.compresscrc = l; break;
#endif #endif
case PROTOCOL_INFO_GUID: Q_snprintfz(guidhash, sizeof(guidhash), "0x%x", l); break; case PROTOCOL_INFO_GUID: Q_snprintfz(connectinfo.ext.guidsalt, sizeof(connectinfo.ext.guidsalt), "0x%x", l); break;
default: default:
break; break;
} }
@ -3634,7 +3642,7 @@ void CL_ConnectionlessPacket (void)
} }
#endif #endif
CL_SendConnectPacket (&net_from, mtu, ftepext1, ftepext2, ezpext1, huffcrc/*, ...*/, guidhash); CL_SendConnectPacket (&net_from);
return; return;
} }
#ifdef Q2CLIENT #ifdef Q2CLIENT
@ -3870,9 +3878,9 @@ client_connect: //fixme: make function
cl.splitclients = 0; cl.splitclients = 0;
cls.protocol = connectinfo.protocol; cls.protocol = connectinfo.protocol;
cls.proquake_angles_hack = false; cls.proquake_angles_hack = false;
cls.fteprotocolextensions = connectinfo.fteext1; cls.fteprotocolextensions = connectinfo.ext.fte1;
cls.fteprotocolextensions2 = connectinfo.fteext2; cls.fteprotocolextensions2 = connectinfo.ext.fte2;
cls.ezprotocolextensions1 = connectinfo.ezext1; cls.ezprotocolextensions1 = connectinfo.ext.ez1;
cls.challenge = connectinfo.challenge; cls.challenge = connectinfo.challenge;
Netchan_Setup (NS_CLIENT, &cls.netchan, &net_from, connectinfo.qport); Netchan_Setup (NS_CLIENT, &cls.netchan, &net_from, connectinfo.qport);
if (cls.protocol == CP_QUAKE2) if (cls.protocol == CP_QUAKE2)
@ -3881,17 +3889,17 @@ client_connect: //fixme: make function
if (cls.protocol_q2 == PROTOCOL_VERSION_R1Q2 || cls.protocol_q2 == PROTOCOL_VERSION_Q2PRO) if (cls.protocol_q2 == PROTOCOL_VERSION_R1Q2 || cls.protocol_q2 == PROTOCOL_VERSION_Q2PRO)
cls.netchan.qportsize = 1; cls.netchan.qportsize = 1;
} }
cls.netchan.pext_fragmentation = connectinfo.mtu?true:false; cls.netchan.pext_fragmentation = connectinfo.ext.mtu?true:false;
cls.netchan.pext_stunaware = !!(connectinfo.fteext2&PEXT2_STUNAWARE); cls.netchan.pext_stunaware = !!(connectinfo.ext.fte2&PEXT2_STUNAWARE);
if (connectinfo.mtu >= 64) if (connectinfo.ext.mtu >= 64)
{ {
cls.netchan.mtu = connectinfo.mtu; cls.netchan.mtu = connectinfo.ext.mtu;
cls.netchan.message.maxsize = sizeof(cls.netchan.message_buf); cls.netchan.message.maxsize = sizeof(cls.netchan.message_buf);
} }
else else
cls.netchan.mtu = MAX_QWMSGLEN; cls.netchan.mtu = MAX_QWMSGLEN;
#ifdef HUFFNETWORK #ifdef HUFFNETWORK
cls.netchan.compresstable = Huff_CompressionCRC(connectinfo.compresscrc); cls.netchan.compresstable = Huff_CompressionCRC(connectinfo.ext.compresscrc);
#else #else
cls.netchan.compresstable = NULL; cls.netchan.compresstable = NULL;
#endif #endif
@ -4075,9 +4083,9 @@ void CLNQ_ConnectionlessPacket(void)
Validation_Apply_Ruleset(); Validation_Apply_Ruleset();
cls.fteprotocolextensions = connectinfo.fteext1; cls.fteprotocolextensions = connectinfo.ext.fte1;
cls.fteprotocolextensions2 = connectinfo.fteext2; cls.fteprotocolextensions2 = connectinfo.ext.fte2;
cls.ezprotocolextensions1 = connectinfo.ezext1; cls.ezprotocolextensions1 = connectinfo.ext.ez1;
Netchan_Setup (NS_CLIENT, &cls.netchan, &net_from, connectinfo.qport); Netchan_Setup (NS_CLIENT, &cls.netchan, &net_from, connectinfo.qport);
CL_ParseEstablished(); CL_ParseEstablished();
cls.netchan.isnqprotocol = true; cls.netchan.isnqprotocol = true;