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Comparing deliantra/server/socket/init.C (file contents):
Revision 1.18 by root, Thu Dec 14 21:46:34 2006 UTC vs.
Revision 1.43 by root, Mon Apr 2 18:55:22 2007 UTC

1/* 1/*
2 CrossFire, A Multiplayer game for X-windows 2 * CrossFire, A Multiplayer game for X-windows
3 3 *
4 * Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team
4 Copyright (C) 2001 Mark Wedel 5 * Copyright (C) 2001 Mark Wedel
5 Copyright (C) 1992 Frank Tore Johansen 6 * Copyright (C) 1992 Frank Tore Johansen
6 7 *
7 This program is free software; you can redistribute it and/or modify 8 * This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by 9 * it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or 10 * the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version. 11 * (at your option) any later version.
11 12 *
12 This program is distributed in the hope that it will be useful, 13 * This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details. 16 * GNU General Public License for more details.
16 17 *
17 You should have received a copy of the GNU General Public License 18 * You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software 19 * along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 21 *
21 The author can be reached via e-mail to <crossfire@schmorp.de> 22 * The author can be reached via e-mail to <crossfire@schmorp.de>
22*/ 23 */
23 24
24/** 25/**
25 * \file 26 * \file
26 * Socket general functions 27 * Socket general functions
27 * 28 *
… …
29 * 30 *
30 * Mainly deals with initialization and higher level socket 31 * Mainly deals with initialization and higher level socket
31 * maintenance (checking for lost connections and if data has arrived.) 32 * maintenance (checking for lost connections and if data has arrived.)
32 * The reading of data is handled in ericserver.c 33 * The reading of data is handled in ericserver.c
33 */ 34 */
34
35 35
36#include <global.h> 36#include <global.h>
37#include <sproto.h> 37#include <sproto.h>
38#include <sys/types.h> 38#include <sys/types.h>
39#include <sys/time.h> 39#include <sys/time.h>
40#include <sys/socket.h> 40#include <sys/socket.h>
41#include <netinet/in.h> 41#include <netinet/in.h>
42#include <netinet/tcp.h>
43#include <netinet/ip.h>
42#include <netdb.h> 44#include <netdb.h>
43 45
44#ifdef HAVE_UNISTD_H
45# include <unistd.h> 46#include <unistd.h>
46#endif
47
48#ifdef HAVE_ARPA_INET_H
49# include <arpa/inet.h> 47#include <arpa/inet.h>
50#endif
51#include <newserver.h>
52 48
49#include <algorithm>
50
53sockvec client_sockets; 51sockvec clients;
54 52
55/** 53/**
56 * Initializes a connection. Really, it just sets up the data structure, 54 * Initializes a connection. Really, it just sets up the data structure,
57 * socket setup is handled elsewhere. We do send a version to the 55 * socket setup is handled elsewhere. We do send a version to the
58 * client. 56 * client.
59 */ 57 */
60client_socket::client_socket (int fd, const char *peername) 58client::client (int fd, const char *peername)
61: fd (fd), host (strdup (peername)), 59: fd (fd), host (strdup (peername)),
62 socket_ev (this, &client_socket::socket_cb) 60 socket_ev (this, &client::socket_cb),
61 cmd_ev (this, &client::cmd_cb),
62 cc_inv (this), cc_other (this)
63{ 63{
64 refcnt_inc (); // the socket is an external reference
65
66 mss = 1500 - 52; // 1500 typical ethernet frame, 66 typical tcp header overhead
67
64 { 68 {
65 struct linger linger_opt; 69 struct linger linger_opt;
66 70
67 linger_opt.l_onoff = 0; 71 linger_opt.l_onoff = 0;
68 linger_opt.l_linger = 0; 72 linger_opt.l_linger = 0;
69 73
70 if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger))) 74 if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger)))
71 LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno)); 75 LOG (llevError, "SO_LINGER: %s\n", strerror (errno));
76 }
77
78 {
79 int val;
80
81#ifdef IP_TOS
82 val = IPTOS_LOWDELAY;
83 if (setsockopt (fd, IPPROTO_IP, IP_TOS, &val, sizeof (val)))
84 LOG (llevError, "IP_TOS: %s\n", strerror (errno));
85#endif
86
87#ifdef TCP_NODELAY
88 val = 1;
89 if (setsockopt (fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof (val)))
90 LOG (llevError, "TCP_NODELAY: %s\n", strerror (errno));
91#endif
92
93 // set some very aggressive keepalive parameters
94#ifdef TCP_KEEPIDLE
95 val = 10;
96 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPIDLE, &val, sizeof (val)))
97 LOG (llevError, "TCP_KEEPIDLE: %s\n", strerror (errno));
98#endif
99
100#ifdef TCP_KEEPCNT
101 val = 5;
102 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPCNT, &val, sizeof (val)))
103 LOG (llevError, "TCP_KEEPCNT: %s\n", strerror (errno));
104#endif
105
106#ifdef TCP_KEEPINTVL
107 val = 1;
108 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPINTVL, &val, sizeof (val)))
109 LOG (llevError, "TCP_KEEPINTVL: %s\n", strerror (errno));
110#endif
111
112 // try to find the mss value in use
113#ifdef TCP_MAXSEG
114 socklen_t sl = sizeof (val);
115 if (!getsockopt (fd, IPPROTO_TCP, TCP_MAXSEG, &val, &sl) && sl == sizeof (val))
116 mss = val;
117#endif
72 } 118 }
73 119
74 { 120 {
75 int bufsize = 65535; /*Supposed absolute upper limit */ 121 int bufsize = 65535; /*Supposed absolute upper limit */
76 int oldbufsize; 122 int oldbufsize;
… …
88 134
89 buflen = sizeof (oldbufsize); 135 buflen = sizeof (oldbufsize);
90 getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen); 136 getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen);
91 } 137 }
92 138
139 state = ST_SETUP;
93 mapmode = Map0Cmd; 140 mapmode = Map0Cmd;
94 darkness = 1; 141 darkness = 1;
95 status = Ns_Add;
96 mapx = 11; 142 mapx = 11;
97 mapy = 11; 143 mapy = 11;
98 itemcmd = 1; /* Default is version item1 command */ 144 itemcmd = 1; /* Default is version item1 command */
99 145 max_rate = 100000 / (1000000 / MAX_TIME); // ~1mbit is assumed per default
100 faces_sent_len = nrofpixmaps;
101 faces_sent = (uint8 *)calloc (nrofpixmaps, sizeof (*faces_sent));
102 if (!faces_sent)
103 fatal (OUT_OF_MEMORY);
104 146
105 /* Do this so we don't send a face command for the client for 147 /* Do this so we don't send a face command for the client for
106 * this face. Face 0 is sent to the client to say clear 148 * this face. Face 0 is sent to the client to say clear
107 * face information. 149 * face information.
108 */ 150 */
109 faces_sent[0] = NS_FACESENT_FACE; 151 faces_sent[0] = true;
110 152
153 socket_ev.prio (PE_PRIO_NORMAL);
111 socket_ev.fd (fd); 154 socket_ev.fd (fd);
155 socket_ev.poll (PE_R);
156
157 cmd_ev.prio (PE_PRIO_NORMAL);
112 158
113 // initialisation done, kick it! 159 // initialisation done, kick it!
114
115 {
116 packet sl;
117 sl.printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO); 160 send_packet_printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO);
118 send_packet (sl); 161 flush ();
162
163 reset_stats ();
164
165 clients.insert (this);
166}
167
168client::~client ()
169{
170 clients.erase (this);
171
172 free (stats.range);
173 free (stats.title);
174 free (host);
175}
176
177void
178client::do_destroy ()
179{
180 attachable::do_destroy ();
181
182 if (pl)
183 pl->disconnect ();
184
185 if (fd >= 0)
186 {
187 send_packet ("goodbye");
119 flush (); 188 flush ();
189
190 close (fd);
120 } 191 }
121 192
122#if 0//TODO 193 state = ST_DEAD;
123 socket_info.nconns++;
124 if (socket_info.nconns > cst_tot.max_conn) cst_tot.max_conn = socket_info.nconns;
125 if (socket_info.nconns > cst_lst.max_conn) cst_lst.max_conn = socket_info.nconns;
126#endif
127}
128 194
129client_socket::~client_socket () 195 socket_ev.suspend ();
196 cmd_ev.suspend ();
197
198 refcnt_dec (); // socket no longer open
199}
200
201void
202client::reset_stats ()
130{ 203{
131 status = Ns_Dead; 204 /* we need to clear these to -1 and not zero - otherwise,
205 * if a player quits and starts a new character, we wont
206 * send new values to the client, as things like exp start
207 * at zero.
208 */
209 for (int i = 0; i < NUM_SKILLS; i++)
210 last_skill_exp[i] = -1;
211
212 for (int i = 0; i < NROFATTACKS; i++)
213 last_resist[i] = -1;
214
215 last_weapon_sp = -1;
216 last_level = -1;
217 last_stats.exp = -1;
218 last_weight = (uint32) - 1;
219 last_flags = 0;
220 last_weight = 0;
221 last_weight_limit = 0;
222 last_path_attuned = 0;
223 last_path_repelled = 0;
224 last_path_denied = 0;
225 last_speed = 0;
226 flags = 0;
227
228 static living zero_living;
229 last_stats = zero_living;
132} 230}
133 231
134/** This sets up the socket and reads all the image information into memory. */ 232/** This sets up the socket and reads all the image information into memory. */
135void 233void
136init_ericserver (void) 234init_ericserver (void)
137{ 235{
138 struct sockaddr_in insock;
139 struct linger linger_opt;
140
141 memset (&cst_tot, 0, sizeof (CS_Stats));
142 memset (&cst_lst, 0, sizeof (CS_Stats));
143 cst_tot.time_start = time (NULL); 236 cst_tot.time_start = time (NULL);
144 cst_lst.time_start = time (NULL); 237 cst_lst.time_start = time (NULL);
145 238
146 LOG (llevDebug, "Initialize new client/server data\n"); 239 LOG (llevDebug, "Initialize new client/server data\n");
147
148 read_client_images ();
149} 240}
150 241
151 242
152/******************************************************************************* 243/*******************************************************************************
153 * 244 *
… …
161{ 252{
162 LOG (llevDebug, "Freeing all new client/server information.\n"); 253 LOG (llevDebug, "Freeing all new client/server information.\n");
163 free_socket_images (); 254 free_socket_images ();
164} 255}
165 256
166/** 257client *
167 * Frees a socket.
168 * Basically, all we need to do here is free all data structures that
169 * might be associated with the socket. It is up to the caller to
170 * update the list
171 */
172
173void
174free_newsocket (client_socket *ns)
175{
176 if (ns->fd >= 0)
177 close (ns->fd);
178
179 if (ns->stats.range)
180 free (ns->stats.range);
181
182 if (ns->stats.title)
183 free (ns->stats.title);
184
185 free (ns->host);
186
187 ns->fd = -1;
188 ns->stats.range = 0;
189 ns->stats.title = 0;
190 ns->host = 0;
191}
192
193/** Sends the 'goodbye' command to the player, and closes connection. */
194void
195final_free_player (player *pl)
196{
197 pl->socket->send_packet ("goodbye");
198 free_newsocket (pl->socket);
199 free_player (pl);
200}
201
202bool
203add_client_socket (int fd, const char *peername) 258client::create (int fd, const char *peername)
204{ 259{
205 if (checkbanned (NULL, peername))
206 {
207 LOG (llevInfo, "Banned host tried to connect: [%s]\n", peername);
208 return false;
209 }
210 else
211 {
212 client_socket *ns = new client_socket (dup (fd), peername); 260 client *ns = new client (dup (fd), peername);
213 client_sockets.push_back (ns); 261 ns->instantiate (); // effectively a nop right now
214 return true; 262 INVOKE_CLIENT (CONNECT, ns);
215 } 263 return ns;
216} 264}
217 265

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