… | |
… | |
32 | * The reading of data is handled in ericserver.c |
32 | * The reading of data is handled in ericserver.c |
33 | */ |
33 | */ |
34 | |
34 | |
35 | |
35 | |
36 | #include <global.h> |
36 | #include <global.h> |
37 | #ifndef __CEXTRACT__ |
|
|
38 | # include <sproto.h> |
37 | #include <sproto.h> |
39 | #endif |
|
|
40 | #include <sys/types.h> |
38 | #include <sys/types.h> |
41 | #include <sys/time.h> |
39 | #include <sys/time.h> |
42 | #include <sys/socket.h> |
40 | #include <sys/socket.h> |
43 | #include <netinet/in.h> |
41 | #include <netinet/in.h> |
44 | #include <netdb.h> |
42 | #include <netdb.h> |
… | |
… | |
50 | #ifdef HAVE_ARPA_INET_H |
48 | #ifdef HAVE_ARPA_INET_H |
51 | # include <arpa/inet.h> |
49 | # include <arpa/inet.h> |
52 | #endif |
50 | #endif |
53 | #include <newserver.h> |
51 | #include <newserver.h> |
54 | |
52 | |
55 | Socket_Info socket_info; |
53 | sockvec client_sockets; |
56 | NewSocket *init_sockets; |
|
|
57 | |
54 | |
58 | /** |
55 | /** |
59 | * Initializes a connection. Really, it just sets up the data structure, |
56 | * Initializes a connection. Really, it just sets up the data structure, |
60 | * socket setup is handled elsewhere. We do send a version to the |
57 | * socket setup is handled elsewhere. We do send a version to the |
61 | * client. |
58 | * client. |
62 | */ |
59 | */ |
63 | void |
60 | client_socket::client_socket (int fd, const char *peername) |
64 | InitConnection (NewSocket * ns, const char *from_ip) |
61 | : fd (fd), host (strdup (peername)) |
65 | { |
62 | { |
66 | SockList sl; |
63 | { |
67 | char buf[256]; |
64 | struct linger linger_opt; |
|
|
65 | |
|
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66 | linger_opt.l_onoff = 0; |
|
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67 | linger_opt.l_linger = 0; |
|
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68 | |
|
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69 | if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger))) |
|
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70 | LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno)); |
|
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71 | } |
|
|
72 | |
|
|
73 | { |
68 | int bufsize = 65535; /*Supposed absolute upper limit */ |
74 | int bufsize = 65535; /*Supposed absolute upper limit */ |
69 | int oldbufsize; |
75 | int oldbufsize; |
70 | int buflen = sizeof (int); |
76 | int buflen = sizeof (int); |
71 | |
77 | |
72 | if (fcntl (ns->fd, F_SETFL, O_NONBLOCK) == -1) |
78 | if (fcntl (fd, F_SETFL, O_NONBLOCK) == -1) |
73 | { |
|
|
74 | LOG (llevError, "InitConnection: Error on fcntl.\n"); |
79 | LOG (llevError, "InitConnection: Error on fcntl.\n"); |
75 | } |
|
|
76 | |
80 | |
77 | if (getsockopt (ns->fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen) == -1) |
81 | if (getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen) == -1) |
78 | oldbufsize = 0; |
82 | oldbufsize = 0; |
|
|
83 | |
79 | if (oldbufsize < bufsize) |
84 | if (oldbufsize < bufsize) |
80 | { |
|
|
81 | #ifdef ESRV_DEBUG |
|
|
82 | LOG (llevDebug, "Default buffer size was %d bytes, will reset it to %d\n", oldbufsize, bufsize); |
|
|
83 | #endif |
|
|
84 | if (setsockopt (ns->fd, SOL_SOCKET, SO_SNDBUF, (char *) &bufsize, sizeof (&bufsize))) |
85 | if (setsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &bufsize, sizeof (&bufsize))) |
85 | { |
|
|
86 | LOG (llevError, "InitConnection: setsockopt unable to set output buf size to %d\n", bufsize); |
86 | LOG (llevError, "InitConnection: setsockopt unable to set output buf size to %d\n", bufsize); |
87 | } |
87 | |
88 | } |
|
|
89 | buflen = sizeof (oldbufsize); |
88 | buflen = sizeof (oldbufsize); |
90 | getsockopt (ns->fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen); |
89 | getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen); |
91 | #ifdef ESRV_DEBUG |
90 | } |
92 | LOG (llevDebug, "Socket buffer size now %d bytes\n", oldbufsize); |
|
|
93 | #endif |
|
|
94 | |
91 | |
95 | ns->faceset = 0; |
|
|
96 | ns->facecache = 0; |
|
|
97 | ns->image2 = 0; |
|
|
98 | ns->sound = 0; |
|
|
99 | ns->exp64 = 0; |
|
|
100 | ns->monitor_spells = 0; |
|
|
101 | ns->mapmode = Map0Cmd; |
92 | mapmode = Map0Cmd; |
102 | ns->darkness = 1; |
93 | darkness = 1; |
103 | ns->status = Ns_Add; |
94 | status = Ns_Add; |
104 | ns->mapx = 11; |
95 | mapx = 11; |
105 | ns->mapy = 11; |
96 | mapy = 11; |
106 | ns->newmapcmd = 0; |
|
|
107 | ns->itemcmd = 1; /* Default is version item1 command */ |
97 | itemcmd = 1; /* Default is version item1 command */ |
108 | ns->ext_mapinfos = 0; /*extendedmapinfo datas */ |
|
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109 | ns->EMI_smooth = 0; |
|
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110 | ns->look_position = 0; |
|
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111 | ns->update_look = 0; |
|
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112 | ns->has_readable_type = 0; |
|
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113 | ns->supported_readables = 0; |
|
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114 | ns->monitor_spells = 0; |
|
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115 | ns->mapinfocmd = 0; |
|
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116 | ns->extcmd = 0; |
|
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117 | ns->extmap = 0; |
|
|
118 | |
98 | |
119 | /* we should really do some checking here - if total clients overflows |
99 | faces_sent_len = nrofpixmaps; |
120 | * we need to do something more intelligent, because client id's will start |
100 | faces_sent = (uint8 *)calloc (nrofpixmaps, sizeof (*faces_sent)); |
121 | * duplicating (not likely in normal cases, but malicous attacks that |
101 | if (!faces_sent) |
122 | * just open and close connections could get this total up. |
102 | fatal (OUT_OF_MEMORY); |
123 | */ |
103 | |
124 | ns->inbuf.len = 0; |
|
|
125 | ns->inbuf.buf = (unsigned char *) malloc (sizeof (unsigned char) * MAXSOCKBUF); |
|
|
126 | /* Basic initialization. Needed because we do a check in |
|
|
127 | * HandleClient for oldsocketmode without checking the |
|
|
128 | * length of data. |
|
|
129 | */ |
|
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130 | memset (ns->inbuf.buf, 0, sizeof (unsigned char) * MAXSOCKBUF); |
|
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131 | memset (&ns->lastmap, 0, sizeof (struct Map)); |
|
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132 | memset (ns->faces_sent, 0, ns->faces_sent_len * sizeof (*ns->faces_sent)); |
|
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133 | memset (&ns->anims_sent, 0, sizeof (ns->anims_sent)); |
|
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134 | memset (&ns->stats, 0, sizeof (struct statsinfo)); |
|
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135 | /* Do this so we don't send a face command for the client for |
104 | /* Do this so we don't send a face command for the client for |
136 | * this face. Face 0 is sent to the client to say clear |
105 | * this face. Face 0 is sent to the client to say clear |
137 | * face information. |
106 | * face information. |
138 | */ |
107 | */ |
139 | ns->faces_sent[0] = NS_FACESENT_FACE; |
108 | faces_sent[0] = NS_FACESENT_FACE; |
140 | |
109 | |
141 | ns->outputbuffer.start = 0; |
|
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142 | ns->outputbuffer.len = 0; |
|
|
143 | ns->can_write = 1; |
110 | can_write = 1; |
144 | ns->password_fails = 0; |
|
|
145 | |
111 | |
146 | ns->current_map = 0; |
112 | // initialisation done, kick it! |
147 | ns->current_x = 0; |
|
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148 | ns->current_y = 0; |
|
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149 | ns->client[0] = 0; |
|
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150 | ns->buggy_mapscroll = 0; |
|
|
151 | |
113 | |
152 | ns->sent_scroll = 0; |
114 | { |
153 | ns->host = strdup_local (from_ip); |
115 | packet sl; |
154 | sprintf ((char *) buf, "version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO); |
116 | sl.printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO); |
155 | sl.buf = (unsigned char *) buf; |
117 | send_packet (sl); |
156 | sl.len = strlen ((char *) buf); |
118 | } |
157 | Send_With_Handling (ns, &sl); |
119 | |
158 | #ifdef CS_LOGSTATS |
120 | #if 0//TODO |
159 | if (socket_info.nconns > cst_tot.max_conn) |
121 | socket_info.nconns++; |
160 | cst_tot.max_conn = socket_info.nconns; |
122 | if (socket_info.nconns > cst_tot.max_conn) cst_tot.max_conn = socket_info.nconns; |
161 | if (socket_info.nconns > cst_lst.max_conn) |
123 | if (socket_info.nconns > cst_lst.max_conn) cst_lst.max_conn = socket_info.nconns; |
162 | cst_lst.max_conn = socket_info.nconns; |
|
|
163 | #endif |
124 | #endif |
164 | } |
125 | } |
165 | |
126 | |
|
|
127 | client_socket::~client_socket () |
|
|
128 | { |
|
|
129 | status = Ns_Dead; |
|
|
130 | } |
166 | |
131 | |
167 | /** This sets up the socket and reads all the image information into memory. */ |
132 | /** This sets up the socket and reads all the image information into memory. */ |
168 | void |
133 | void |
169 | init_ericserver (void) |
134 | init_ericserver (void) |
170 | { |
135 | { |
171 | struct sockaddr_in insock; |
136 | struct sockaddr_in insock; |
172 | struct protoent *protox; |
|
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173 | struct linger linger_opt; |
137 | struct linger linger_opt; |
174 | |
138 | |
175 | #ifdef HAVE_SYSCONF |
|
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176 | socket_info.max_filedescriptor = sysconf (_SC_OPEN_MAX); |
|
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177 | #else |
|
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178 | # ifdef HAVE_GETDTABLESIZE |
|
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179 | socket_info.max_filedescriptor = getdtablesize (); |
|
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180 | # else |
|
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181 | "Unable to find usable function to get max filedescriptors"; |
|
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182 | # endif |
|
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183 | #endif |
|
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184 | |
|
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185 | socket_info.timeout.tv_sec = 0; |
|
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186 | socket_info.timeout.tv_usec = 0; |
|
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187 | socket_info.nconns = 0; |
|
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188 | |
|
|
189 | #ifdef CS_LOGSTATS |
|
|
190 | memset (&cst_tot, 0, sizeof (CS_Stats)); |
139 | memset (&cst_tot, 0, sizeof (CS_Stats)); |
191 | memset (&cst_lst, 0, sizeof (CS_Stats)); |
140 | memset (&cst_lst, 0, sizeof (CS_Stats)); |
192 | cst_tot.time_start = time (NULL); |
141 | cst_tot.time_start = time (NULL); |
193 | cst_lst.time_start = time (NULL); |
142 | cst_lst.time_start = time (NULL); |
194 | #endif |
|
|
195 | |
143 | |
196 | LOG (llevDebug, "Initialize new client/server data\n"); |
144 | LOG (llevDebug, "Initialize new client/server data\n"); |
197 | socket_info.nconns = 1; |
|
|
198 | init_sockets = (NewSocket *) malloc (sizeof (NewSocket)); |
|
|
199 | init_sockets[0].faces_sent = NULL; /* unused */ |
|
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200 | socket_info.allocated_sockets = 1; |
|
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201 | |
145 | |
202 | protox = getprotobyname ("tcp"); |
|
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203 | if (protox == NULL) |
|
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204 | { |
|
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205 | LOG (llevError, "init_ericserver: Error getting protox\n"); |
|
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206 | return; |
|
|
207 | } |
|
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208 | init_sockets[0].fd = socket (PF_INET, SOCK_STREAM, protox->p_proto); |
|
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209 | if (init_sockets[0].fd == -1) |
|
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210 | { |
|
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211 | LOG (llevError, "Cannot create socket: %s\n", strerror (errno)); |
|
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212 | exit (-1); |
|
|
213 | } |
|
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214 | insock.sin_family = AF_INET; |
|
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215 | insock.sin_port = htons (settings.csport); |
|
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216 | insock.sin_addr.s_addr = htonl (INADDR_ANY); |
|
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217 | |
|
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218 | linger_opt.l_onoff = 0; |
|
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219 | linger_opt.l_linger = 0; |
|
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220 | if (setsockopt (init_sockets[0].fd, SOL_SOCKET, SO_LINGER, (char *) &linger_opt, sizeof (struct linger))) |
|
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221 | { |
|
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222 | LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno)); |
|
|
223 | } |
|
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224 | |
|
|
225 | /* Would be nice to have an autoconf check for this. It appears that |
|
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226 | * these functions are both using the same calling syntax, just one |
|
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227 | * of them needs extra valus passed. |
|
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228 | */ |
|
|
229 | #if defined(__osf__) || defined(hpux) || defined(sgi) || defined(NeXT) || \ |
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230 | defined(__sun__) || defined(__linux__) || defined(SVR4) || \ |
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231 | defined(__FreeBSD__) || defined(__OpenBSD__) || \ |
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232 | defined(WIN32) /* ---win32 add this here */ || \ |
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233 | defined(__GNU__) /* HURD */ |
|
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234 | { |
|
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235 | int tmp = 1; |
|
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236 | |
|
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237 | if (setsockopt (init_sockets[0].fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof (tmp))) |
|
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238 | { |
|
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239 | LOG (llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror (errno)); |
|
|
240 | } |
|
|
241 | } |
|
|
242 | #else |
|
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243 | if (setsockopt (init_sockets[0].fd, SOL_SOCKET, SO_REUSEADDR, (char *) NULL, 0)) |
|
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244 | { |
|
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245 | LOG (llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror (errno)); |
|
|
246 | } |
|
|
247 | #endif |
|
|
248 | |
|
|
249 | if (bind (init_sockets[0].fd, (struct sockaddr *) &insock, sizeof (insock)) == (-1)) |
|
|
250 | { |
|
|
251 | LOG (llevError, "Cannot bind socket to port %d: %s\n", ntohs (insock.sin_port), strerror (errno)); |
|
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252 | close (init_sockets[0].fd); |
|
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253 | exit (-1); |
|
|
254 | } |
|
|
255 | if (listen (init_sockets[0].fd, 5) == (-1)) |
|
|
256 | { |
|
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257 | LOG (llevError, "Cannot listen on socket: %s\n", strerror (errno)); |
|
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258 | close (init_sockets[0].fd); |
|
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259 | exit (-1); |
|
|
260 | } |
|
|
261 | init_sockets[0].status = Ns_Add; |
|
|
262 | read_client_images (); |
146 | read_client_images (); |
263 | } |
147 | } |
264 | |
148 | |
265 | |
149 | |
266 | /******************************************************************************* |
150 | /******************************************************************************* |
… | |
… | |
273 | void |
157 | void |
274 | free_all_newserver (void) |
158 | free_all_newserver (void) |
275 | { |
159 | { |
276 | LOG (llevDebug, "Freeing all new client/server information.\n"); |
160 | LOG (llevDebug, "Freeing all new client/server information.\n"); |
277 | free_socket_images (); |
161 | free_socket_images (); |
278 | free (init_sockets); |
|
|
279 | } |
162 | } |
280 | |
163 | |
281 | /** |
164 | /** |
282 | * Frees a socket. |
165 | * Frees a socket. |
283 | * Basically, all we need to do here is free all data structures that |
166 | * Basically, all we need to do here is free all data structures that |
284 | * might be associated with the socket. It is up to the caller to |
167 | * might be associated with the socket. It is up to the caller to |
285 | * update the list |
168 | * update the list |
286 | */ |
169 | */ |
287 | |
170 | |
288 | void |
171 | void |
289 | free_newsocket (NewSocket * ns) |
172 | free_newsocket (client_socket *ns) |
290 | { |
173 | { |
|
|
174 | if (ns->fd >= 0) |
291 | if (close (ns->fd)) |
175 | close (ns->fd); |
292 | { |
|
|
293 | |
|
|
294 | #ifdef ESRV_DEBUG |
|
|
295 | LOG (llevDebug, "Error closing socket %d\n", ns->fd); |
|
|
296 | #endif |
|
|
297 | } |
|
|
298 | |
176 | |
299 | if (ns->stats.range) |
177 | if (ns->stats.range) |
300 | free (ns->stats.range); |
178 | free (ns->stats.range); |
301 | |
179 | |
302 | if (ns->stats.title) |
180 | if (ns->stats.title) |
303 | free (ns->stats.title); |
181 | free (ns->stats.title); |
304 | |
182 | |
305 | free (ns->host); |
183 | free (ns->host); |
306 | free (ns->inbuf.buf); |
184 | |
|
|
185 | ns->fd = -1; |
|
|
186 | ns->stats.range = 0; |
|
|
187 | ns->stats.title = 0; |
|
|
188 | ns->host = 0; |
307 | } |
189 | } |
308 | |
190 | |
309 | /** Sends the 'goodbye' command to the player, and closes connection. */ |
191 | /** Sends the 'goodbye' command to the player, and closes connection. */ |
310 | void |
192 | void |
311 | final_free_player (player *pl) |
193 | final_free_player (player *pl) |
312 | { |
194 | { |
313 | cs_write_string (&pl->socket, "goodbye", 8); |
195 | pl->socket->send_packet ("goodbye"); |
314 | free_newsocket (&pl->socket); |
196 | free_newsocket (pl->socket); |
315 | free_player (pl); |
197 | free_player (pl); |
316 | } |
198 | } |
|
|
199 | |
|
|
200 | bool |
|
|
201 | add_client_socket (int fd, const char *peername) |
|
|
202 | { |
|
|
203 | if (checkbanned (NULL, peername)) |
|
|
204 | { |
|
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205 | LOG (llevInfo, "Banned host tried to connect: [%s]\n", peername); |
|
|
206 | return false; |
|
|
207 | } |
|
|
208 | else |
|
|
209 | { |
|
|
210 | client_socket *ns = new client_socket (dup (fd), peername); |
|
|
211 | client_sockets.push_back (ns); |
|
|
212 | return true; |
|
|
213 | } |
|
|
214 | } |
|
|
215 | |