401 lines
14 KiB
C
401 lines
14 KiB
C
/*
|
|
Copyright (C) 1996-1997 Id Software, Inc.
|
|
|
|
This program is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU General Public License
|
|
as published by the Free Software Foundation; either version 2
|
|
of the License, or (at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
|
|
See the GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
|
|
*/
|
|
// net.h -- quake's interface to the networking layer
|
|
|
|
#define PORT_ANY -1
|
|
|
|
#if defined(NACL) || defined(FTE_TARGET_WEB)
|
|
#define HAVE_WEBSOCKCL
|
|
#endif
|
|
|
|
#ifdef __linux__
|
|
//#define UNIXSOCKETS
|
|
#endif
|
|
|
|
//FIXME: should split this into loopback/dgram/stream/dtls/tls/irc
|
|
//with the ipv4/v6/x as a separate parameter
|
|
typedef enum {
|
|
NA_INVALID,
|
|
NA_LOOPBACK,
|
|
/*NA_HYBRID,*/ //ipv6 hybrid socket that might accept ipv4 packets too.
|
|
NA_IP,
|
|
NA_IPV6,
|
|
NA_IPX,
|
|
#ifdef UNIXSOCKETS
|
|
NA_UNIX,
|
|
#endif
|
|
#ifdef IRCCONNECT
|
|
NA_IRC/*remove!*/,
|
|
#endif
|
|
#ifdef HAVE_WEBSOCKCL
|
|
NA_WEBSOCKET,
|
|
#endif
|
|
#ifdef SUPPORT_ICE
|
|
NA_ICE
|
|
#endif
|
|
} netadrtype_t;
|
|
typedef enum {
|
|
NP_DGRAM,
|
|
NP_DTLS, //connected via ICE/WebRTC
|
|
NP_STREAM,
|
|
NP_TLS,
|
|
NP_WS,
|
|
NP_WSS,
|
|
NP_NATPMP, //server-only scheme for registering public ports.
|
|
NP_RTC_TCP,
|
|
NP_RTC_TLS, //really need a better way to do this than two copies of every protocol...
|
|
|
|
NP_INVALID
|
|
} netproto_t;
|
|
|
|
typedef enum {NS_CLIENT, NS_SERVER} netsrc_t;
|
|
|
|
typedef struct netadr_s
|
|
{
|
|
netadrtype_t type;
|
|
netproto_t prot;
|
|
|
|
unsigned short port;
|
|
unsigned short connum; //which quake connection/socket the address is talking about. 1-based. 0 is unspecified. this is NOT used for address equivelency.
|
|
unsigned int scopeid; //ipv6 interface id thing.
|
|
|
|
union {
|
|
qbyte ip[4];
|
|
qbyte ip6[16];
|
|
qbyte ipx[10];
|
|
#ifdef IRCCONNECT
|
|
struct {
|
|
char host[32];
|
|
char user[32];
|
|
char channel[12];
|
|
} irc;
|
|
#endif
|
|
#ifdef SUPPORT_ICE
|
|
char icename[16];
|
|
#endif
|
|
#ifdef HAVE_WEBSOCKCL
|
|
char websocketurl[64];
|
|
#endif
|
|
#ifdef UNIXSOCKETS
|
|
struct
|
|
{
|
|
int len; //abstract addresses contain nulls, so this is needed.
|
|
char path[108];
|
|
} un;
|
|
#endif
|
|
} address;
|
|
} netadr_t;
|
|
|
|
struct sockaddr_qstorage
|
|
{
|
|
short dontusesa_family;
|
|
unsigned char dontusesa_pad[6];
|
|
qint64_t sa_align;
|
|
unsigned char sa_pad2[112];
|
|
};
|
|
|
|
|
|
extern netadr_t net_local_cl_ipadr;
|
|
extern netadr_t net_from; // address of who sent the packet
|
|
extern sizebuf_t net_message;
|
|
//#define MAX_UDP_PACKET (MAX_MSGLEN*2) // one more than msg + header
|
|
#define MAX_UDP_PACKET 8192 // one more than msg + header
|
|
extern FTE_ALIGN(4) qbyte net_message_buffer[MAX_OVERALLMSGLEN];
|
|
|
|
typedef enum
|
|
{
|
|
NETERR_SENT = 0, //all is well
|
|
NETERR_NOROUTE = 1, //destination isn't valid for this socket/etc. try a different one if possible
|
|
NETERR_DISCONNECTED = 2, //socket can no longer send anything
|
|
NETERR_MTU = 3, //packet wasn't sent due to MTU
|
|
NETERR_CLOGGED = 4 //socket is suffering from conjestion
|
|
} neterr_t;
|
|
|
|
extern cvar_t hostname;
|
|
|
|
int TCP_OpenStream (netadr_t *remoteaddr); //makes things easier
|
|
|
|
struct ftenet_connections_s;
|
|
void NET_Init (void);
|
|
void NET_Tick (void);
|
|
void SVNET_RegisterCvars(void);
|
|
void NET_InitClient (qboolean loopbackonly);
|
|
void NET_CloseClient(void);
|
|
void NET_InitServer (void);
|
|
qboolean NET_WasSpecialPacket(struct ftenet_connections_s *col);
|
|
void NET_CloseServer (void);
|
|
void UDP_CloseSocket (int socket);
|
|
void NET_Shutdown (void);
|
|
qboolean NET_GetRates(struct ftenet_connections_s *collection, float *pi, float *po, float *bi, float *bo);
|
|
qboolean NET_UpdateRates(struct ftenet_connections_s *collection, qboolean inbound, size_t size); //for demos to not be weird
|
|
void NET_ReadPackets (struct ftenet_connections_s *collection);
|
|
neterr_t NET_SendPacket (struct ftenet_connections_s *col, int length, const void *data, netadr_t *to);
|
|
int NET_LocalAddressForRemote(struct ftenet_connections_s *collection, netadr_t *remote, netadr_t *local, int idx);
|
|
void NET_PrintAddresses(struct ftenet_connections_s *collection);
|
|
qboolean NET_AddressSmellsFunny(netadr_t *a);
|
|
qboolean NET_EnsureRoute(struct ftenet_connections_s *collection, char *routename, char *host, netadr_t *adr);
|
|
void NET_PrintConnectionsStatus(struct ftenet_connections_s *collection);
|
|
|
|
enum addressscope_e
|
|
{
|
|
ASCOPE_PROCESS=0,
|
|
ASCOPE_HOST=1,
|
|
ASCOPE_LINK=2,
|
|
ASCOPE_LAN=3,
|
|
ASCOPE_NET=4
|
|
};
|
|
enum addressscope_e NET_ClassifyAddress(netadr_t *adr, const char **outdesc);
|
|
|
|
qboolean NET_AddrIsReliable(netadr_t *adr); //hints that the protocol is reliable. if so, we don't need to wait for acks
|
|
qboolean NET_CompareAdr (netadr_t *a, netadr_t *b);
|
|
qboolean NET_CompareBaseAdr (netadr_t *a, netadr_t *b);
|
|
void NET_AdrToStringResolve (netadr_t *adr, void (*resolved)(void *ctx, void *data, size_t a, size_t b), void *ctx, size_t a, size_t b);
|
|
char *NET_AdrToString (char *s, int len, netadr_t *a);
|
|
char *NET_SockadrToString (char *s, int len, struct sockaddr_qstorage *a, size_t sizeofa);
|
|
char *NET_BaseAdrToString (char *s, int len, netadr_t *a);
|
|
size_t NET_StringToSockaddr2 (const char *s, int defaultport, netadrtype_t afhint, struct sockaddr_qstorage *sadr, int *addrfamily, int *addrsize, size_t addrcount);
|
|
#define NET_StringToSockaddr(s,p,a,f,z) (NET_StringToSockaddr2(s,p,NA_INVALID,a,f,z,1)>0)
|
|
size_t NET_StringToAdr2 (const char *s, int defaultport, netadr_t *a, size_t addrcount, const char **pathstart);
|
|
#define NET_StringToAdr(s,p,a) NET_StringToAdr2(s,p,a,1,NULL)
|
|
qboolean NET_PortToAdr (netadrtype_t adrfamily, netproto_t adrprot, const char *s, netadr_t *a);
|
|
qboolean NET_IsClientLegal(netadr_t *adr);
|
|
|
|
qboolean NET_IsLoopBackAddress (netadr_t *adr);
|
|
|
|
qboolean NET_StringToAdrMasked (const char *s, qboolean allowdns, netadr_t *a, netadr_t *amask);
|
|
char *NET_AdrToStringMasked (char *s, int len, netadr_t *a, netadr_t *amask);
|
|
void NET_IntegerToMask (netadr_t *a, netadr_t *amask, int bits);
|
|
qboolean NET_CompareAdrMasked(netadr_t *a, netadr_t *b, netadr_t *mask);
|
|
|
|
qboolean FTENET_AddToCollection(struct ftenet_connections_s *col, const char *name, const char *address, netadrtype_t addrtype, netproto_t addrprot);
|
|
|
|
enum certprops_e
|
|
{
|
|
QCERT_PEERFINGERPRINT
|
|
};
|
|
size_t NET_GetConnectionCertificate(struct ftenet_connections_s *col, netadr_t *a, enum certprops_e prop, char *out, size_t outsize);
|
|
|
|
#ifdef HAVE_DTLS
|
|
struct dtlscred_s;
|
|
struct dtlsfuncs_s;
|
|
qboolean NET_DTLS_Create(struct ftenet_connections_s *col, netadr_t *to, const struct dtlscred_s *cred);
|
|
qboolean NET_DTLS_Decode(struct ftenet_connections_s *col);
|
|
qboolean NET_DTLS_Disconnect(struct ftenet_connections_s *col, netadr_t *to);
|
|
void NET_DTLS_Timeouts(struct ftenet_connections_s *col);
|
|
extern cvar_t dtls_psk_hint, dtls_psk_user, dtls_psk_key;
|
|
#endif
|
|
#ifdef SUPPORT_ICE
|
|
neterr_t ICE_SendPacket(struct ftenet_connections_s *col, size_t length, const void *data, netadr_t *to);
|
|
#endif
|
|
extern cvar_t timeout;
|
|
extern cvar_t tls_ignorecertificateerrors; //evil evil evil.
|
|
struct ftecrypto_s;
|
|
qboolean NET_RegisterCrypto(void *module, struct ftecrypto_s *driver);
|
|
|
|
//============================================================================
|
|
|
|
#define OLD_AVG 0.99 // total = oldtotal*OLD_AVG + new*(1-OLD_AVG)
|
|
|
|
#define MAX_LATENT 32
|
|
#define MAX_ADR_SIZE 64
|
|
|
|
typedef struct
|
|
{
|
|
qboolean fatal_error;
|
|
|
|
#ifdef NQPROT
|
|
int isnqprotocol;
|
|
qboolean nqreliable_allowed; //says the peer has acked the last reliable (or timed out and needs resending).
|
|
float nqreliable_resendtime;//force nqreliable_allowed, thereby forcing a resend of anything n
|
|
qbyte nqunreliableonly; //nq can't cope with certain reliables some times. if 2, we have a reliable that result in a block (that should be sent). if 1, we are blocking. if 0, we can send reliables freely. if 3, then we just want to ignore clc_moves
|
|
#endif
|
|
qboolean pext_fragmentation; //fte's packet fragmentation extension, to avoid issues with low mtus.
|
|
qboolean pext_stunaware; //prevent the two lead-bits of packets from being either 0(stun), so stray stun packets cannot mess things up for us.
|
|
struct netprim_s netprim;
|
|
int mtu; //the path mtu, if known
|
|
int dupe; //how many times to dupe packets
|
|
|
|
float last_received; // for timeouts
|
|
|
|
// the statistics are cleared at each client begin, because
|
|
// the server connecting process gives a bogus picture of the data
|
|
float frame_latency; // rolling average
|
|
float frame_rate;
|
|
|
|
int drop_count; // dropped packets, cleared each level
|
|
int good_count; // cleared each level
|
|
|
|
int bytesin;
|
|
int bytesout;
|
|
|
|
netadr_t remote_address;
|
|
netsrc_t sock;
|
|
int qport;
|
|
int qportsize;
|
|
|
|
// bandwidth estimator
|
|
double cleartime; // if realtime > nc->cleartime, free to go
|
|
// double rate; // seconds / qbyte
|
|
|
|
// sequencing variables
|
|
int incoming_unreliable; //dictated by the other end.
|
|
int incoming_sequence;
|
|
int incoming_acknowledged;
|
|
int incoming_reliable_acknowledged; // single bit
|
|
|
|
int incoming_reliable_sequence; // single bit, maintained local
|
|
|
|
int outgoing_unreliable;
|
|
int outgoing_sequence;
|
|
int reliable_sequence; // single bit
|
|
int last_reliable_sequence; // sequence number of last send
|
|
|
|
// reliable staging and holding areas
|
|
sizebuf_t message; // writing buffer to send to server
|
|
qbyte message_buf[MAX_OVERALLMSGLEN];
|
|
|
|
//nq has message truncation.
|
|
int reliable_length;
|
|
int reliable_start;
|
|
qbyte reliable_buf[MAX_OVERALLMSGLEN]; // unacked reliable message
|
|
|
|
// time and size data to calculate bandwidth
|
|
int outgoing_size[MAX_LATENT];
|
|
double outgoing_time[MAX_LATENT];
|
|
struct huffman_s *compresstable;
|
|
|
|
//nq servers must recieve truncated packets.
|
|
int in_fragment_length;
|
|
char in_fragment_buf[MAX_OVERALLMSGLEN];
|
|
int in_fragment_start;
|
|
} netchan_t;
|
|
|
|
extern int net_drop; // packets dropped before this one
|
|
|
|
void Net_Master_Init(void);
|
|
|
|
void Netchan_Init (void);
|
|
int Netchan_Transmit (netchan_t *chan, int length, qbyte *data, int rate);
|
|
void Netchan_OutOfBand (netsrc_t sock, netadr_t *adr, int length, qbyte *data);
|
|
void VARGS Netchan_OutOfBandPrint (netsrc_t sock, netadr_t *adr, char *format, ...) LIKEPRINTF(3);
|
|
void VARGS Netchan_OutOfBandTPrintf (netsrc_t sock, netadr_t *adr, int language, translation_t text, ...);
|
|
qboolean Netchan_Process (netchan_t *chan);
|
|
void Netchan_Setup (netsrc_t sock, netchan_t *chan, netadr_t *adr, int qport);
|
|
unsigned int Net_PextMask(unsigned int protover, qboolean fornq);
|
|
extern cvar_t net_mtu;
|
|
|
|
qboolean Netchan_CanPacket (netchan_t *chan, int rate);
|
|
void Netchan_Block (netchan_t *chan, int bytes, int rate);
|
|
qboolean Netchan_CanReliable (netchan_t *chan, int rate);
|
|
#ifdef NQPROT
|
|
enum nqnc_packettype_e
|
|
{
|
|
NQNC_IGNORED,
|
|
NQNC_ACK,
|
|
NQNC_RELIABLE,
|
|
NQNC_UNRELIABLE,
|
|
};
|
|
enum nqnc_packettype_e NQNetChan_Process(netchan_t *chan);
|
|
#endif
|
|
|
|
#ifdef HUFFNETWORK
|
|
#define HUFFCRC_QUAKE3 0x286f2e8d
|
|
|
|
typedef struct huffman_s huffman_t;
|
|
int Huff_PreferedCompressionCRC (void);
|
|
void Huff_EncryptPacket(sizebuf_t *msg, int offset);
|
|
void Huff_DecryptPacket(sizebuf_t *msg, int offset);
|
|
huffman_t *Huff_CompressionCRC(int crc);
|
|
void Huff_CompressPacket(huffman_t *huff, sizebuf_t *msg, int offset);
|
|
void Huff_DecompressPacket(huffman_t *huff, sizebuf_t *msg, int offset);
|
|
int Huff_GetByte(qbyte *buffer, int *count);
|
|
void Huff_EmitByte(int ch, qbyte *buffer, int *count);
|
|
#endif
|
|
|
|
#ifdef NQPROT
|
|
//taken from nq's net.h
|
|
//refer to that for usage info. :)
|
|
|
|
#define NETFLAG_LENGTH_MASK 0x0000ffff
|
|
#define NETFLAG_DATA 0x00010000
|
|
#define NETFLAG_ACK 0x00020000
|
|
#define NETFLAG_NAK 0x00040000
|
|
#define NETFLAG_EOM 0x00080000
|
|
#define NETFLAG_UNRELIABLE 0x00100000
|
|
#define NETFLAG_ZLIB 0x00200000 //QEx - payload contains the real (full) packet
|
|
#define NETFLAG_CTL 0x80000000
|
|
|
|
#define NQ_NETCHAN_GAMENAME "QUAKE"
|
|
#define NQ_NETCHAN_VERSION 3
|
|
#define NQ_NETCHAN_VERSION_QEX 4 //the rerelease's id, used for nqish-over dtls.
|
|
|
|
|
|
#define CCREQ_CONNECT 0x01
|
|
#define CCREQ_SERVER_INFO 0x02
|
|
#define CCREQ_PLAYER_INFO 0x03
|
|
#define CCREQ_RULE_INFO 0x04
|
|
#define CCREQ_PROQUAKE_RCON 0x05
|
|
|
|
#define CCREP_ACCEPT 0x81
|
|
#define CCREP_REJECT 0x82
|
|
#define CCREP_SERVER_INFO 0x83
|
|
#define CCREP_PLAYER_INFO 0x84
|
|
#define CCREP_RULE_INFO 0x85
|
|
|
|
//server->client protocol info
|
|
#define PROTOCOL_VERSION_NQ 15
|
|
#define PROTOCOL_VERSION_H2 19
|
|
#define PROTOCOL_VERSION_NEHD 250
|
|
#define PROTOCOL_VERSION_FITZ 666
|
|
#define PROTOCOL_VERSION_RMQ 999
|
|
#define PROTOCOL_VERSION_DP5 3502
|
|
#define PROTOCOL_VERSION_DP6 3503
|
|
#define PROTOCOL_VERSION_DP7 3504
|
|
#define PROTOCOL_VERSION_BJP1 10000
|
|
#define PROTOCOL_VERSION_BJP2 10001
|
|
#define PROTOCOL_VERSION_BJP3 10002
|
|
|
|
#define MOD_PROQUAKE 1
|
|
//#define MOD_PROQUAKE_VERSION (10*3.1) //password feature added
|
|
//#define MOD_PROQUAKE_VERSION (10*3.2) //first 'cheatfree'
|
|
#define MOD_PROQUAKE_VERSION (10*3.3) //no real changes, but w/e, this is the highest we can claim without having serverside issues.
|
|
//#define MOD_PROQUAKE_VERSION (10*3.4) //added nat wait weirdness that's redundant and breaks the whole single-port thing by using two ports on the client too. *sigh*.
|
|
//#define MOD_PROQUAKE_VERSION (10*3.5) //optional cheatfree encryption
|
|
//#define MOD_PROQUAKE_VERSION (10*4.51) //current version
|
|
|
|
/*RMQ protocol flags*/
|
|
#define RMQFL_SHORTANGLE (1 << 1)
|
|
#define RMQFL_FLOATANGLE (1 << 2)
|
|
#define RMQFL_24BITCOORD (1 << 3)
|
|
#define RMQFL_FLOATCOORD (1 << 4)
|
|
#define RMQFL_EDICTSCALE (1 << 5)
|
|
#define RMQFL_ALPHASANITY (1 << 6)
|
|
#define RMQFL_INT32COORD (1 << 7)
|
|
#define RMQFL_MOREFLAGS (1 << 31)
|
|
|
|
#endif
|
|
|
|
int UDP_OpenSocket (int port);
|
|
int UDP6_OpenSocket (int port);
|
|
int IPX_OpenSocket (int port);
|
|
int NetadrToSockadr (netadr_t *a, struct sockaddr_qstorage *s);
|
|
void SockadrToNetadr (struct sockaddr_qstorage *s, int sizeofsockaddr, netadr_t *a);
|
|
qboolean NET_Sleep(float seconds, qboolean stdinissocket);
|