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48 | #ifdef HAVE_ARPA_INET_H |
48 | #ifdef HAVE_ARPA_INET_H |
49 | # include <arpa/inet.h> |
49 | # include <arpa/inet.h> |
50 | #endif |
50 | #endif |
51 | #include <newserver.h> |
51 | #include <newserver.h> |
52 | |
52 | |
53 | Socket_Info socket_info; |
53 | sockvec client_sockets; |
54 | client_socket *init_sockets; |
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55 | |
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56 | client_socket::client_socket () |
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57 | { |
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58 | } |
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59 | |
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60 | client_socket::~client_socket () |
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61 | { |
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62 | } |
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63 | |
54 | |
64 | /** |
55 | /** |
65 | * Initializes a connection. Really, it just sets up the data structure, |
56 | * Initializes a connection. Really, it just sets up the data structure, |
66 | * 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 |
67 | * client. |
58 | * client. |
68 | */ |
59 | */ |
69 | void |
60 | client_socket::client_socket (int fd, const char *peername) |
70 | client_socket::init (const char *from_ip) |
61 | : fd (fd), host (strdup (peername)) |
71 | { |
62 | { |
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63 | { |
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64 | struct linger linger_opt; |
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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 | } |
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72 | |
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73 | { |
72 | int bufsize = 65535; /*Supposed absolute upper limit */ |
74 | int bufsize = 65535; /*Supposed absolute upper limit */ |
73 | int oldbufsize; |
75 | int oldbufsize; |
74 | int buflen = sizeof (int); |
76 | int buflen = sizeof (int); |
75 | |
77 | |
76 | if (fcntl (fd, F_SETFL, O_NONBLOCK) == -1) |
78 | if (fcntl (fd, F_SETFL, O_NONBLOCK) == -1) |
77 | LOG (llevError, "InitConnection: Error on fcntl.\n"); |
79 | LOG (llevError, "InitConnection: Error on fcntl.\n"); |
78 | |
80 | |
79 | if (getsockopt (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) |
80 | oldbufsize = 0; |
82 | oldbufsize = 0; |
81 | |
83 | |
82 | if (oldbufsize < bufsize) |
84 | if (oldbufsize < bufsize) |
83 | if (setsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &bufsize, sizeof (&bufsize))) |
85 | if (setsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &bufsize, sizeof (&bufsize))) |
84 | 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); |
85 | |
87 | |
86 | buflen = sizeof (oldbufsize); |
88 | buflen = sizeof (oldbufsize); |
87 | getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen); |
89 | getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen); |
88 | #ifdef ESRV_DEBUG |
90 | } |
89 | LOG (llevDebug, "Socket buffer size now %d bytes\n", oldbufsize); |
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90 | #endif |
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91 | |
91 | |
92 | faceset = 0; |
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93 | facecache = 0; |
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94 | image2 = 0; |
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95 | sound = 0; |
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96 | exp64 = 0; |
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97 | monitor_spells = 0; |
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98 | mapmode = Map0Cmd; |
92 | mapmode = Map0Cmd; |
99 | darkness = 1; |
93 | darkness = 1; |
100 | status = Ns_Add; |
94 | status = Ns_Add; |
101 | mapx = 11; |
95 | mapx = 11; |
102 | mapy = 11; |
96 | mapy = 11; |
103 | newmapcmd = 0; |
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104 | itemcmd = 1; /* Default is version item1 command */ |
97 | itemcmd = 1; /* Default is version item1 command */ |
105 | ext_mapinfos = 0; /*extendedmapinfo datas */ |
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106 | EMI_smooth = 0; |
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107 | look_position = 0; |
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108 | update_look = 0; |
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109 | has_readable_type = 0; |
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110 | supported_readables = 0; |
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111 | monitor_spells = 0; |
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112 | mapinfocmd = 0; |
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113 | extcmd = 0; |
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114 | extmap = 0; |
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115 | |
98 | |
116 | /* we should really do some checking here - if total clients overflows |
99 | faces_sent_len = nrofpixmaps; |
117 | * we need to do something more intelligent, because client id's will start |
100 | faces_sent = (uint8 *)calloc (nrofpixmaps, sizeof (*faces_sent)); |
118 | * duplicating (not likely in normal cases, but malicous attacks that |
101 | if (!faces_sent) |
119 | * just open and close connections could get this total up. |
102 | fatal (OUT_OF_MEMORY); |
120 | */ |
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121 | inbuf_len = 0; |
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122 | |
103 | |
123 | /* Basic initialization. Needed because we do a check in |
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124 | * HandleClient for oldsocketmode without checking the |
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125 | * length of data. |
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126 | */ |
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127 | memset (&lastmap, 0, sizeof (struct Map)); |
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128 | memset (faces_sent, 0, faces_sent_len * sizeof (*faces_sent)); |
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129 | memset (&anims_sent, 0, sizeof (anims_sent)); |
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130 | memset (&stats, 0, sizeof (struct statsinfo)); |
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131 | /* 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 |
132 | * 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 |
133 | * face information. |
106 | * face information. |
134 | */ |
107 | */ |
135 | faces_sent[0] = NS_FACESENT_FACE; |
108 | faces_sent[0] = NS_FACESENT_FACE; |
136 | |
109 | |
137 | outputbuffer.start = 0; |
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138 | outputbuffer.len = 0; |
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139 | can_write = 1; |
110 | can_write = 1; |
140 | password_fails = 0; |
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141 | |
111 | |
142 | current_map = 0; |
112 | // initialisation done, kick it! |
143 | current_x = 0; |
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144 | current_y = 0; |
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145 | client[0] = 0; |
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146 | buggy_mapscroll = 0; |
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147 | |
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148 | sent_scroll = 0; |
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149 | host = strdup_local (from_ip); |
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150 | |
113 | |
151 | { |
114 | { |
152 | packet sl; |
115 | packet sl; |
153 | sl.printf ("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); |
154 | send_packet (sl); |
117 | send_packet (sl); |
155 | } |
118 | } |
156 | |
119 | |
157 | if (socket_info.nconns > cst_tot.max_conn) |
120 | #if 0//TODO |
158 | cst_tot.max_conn = socket_info.nconns; |
121 | socket_info.nconns++; |
159 | if (socket_info.nconns > cst_lst.max_conn) |
122 | if (socket_info.nconns > cst_tot.max_conn) cst_tot.max_conn = socket_info.nconns; |
160 | cst_lst.max_conn = socket_info.nconns; |
123 | if (socket_info.nconns > cst_lst.max_conn) cst_lst.max_conn = socket_info.nconns; |
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124 | #endif |
161 | } |
125 | } |
162 | |
126 | |
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127 | client_socket::~client_socket () |
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128 | { |
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129 | status = Ns_Dead; |
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130 | } |
163 | |
131 | |
164 | /** 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. */ |
165 | void |
133 | void |
166 | init_ericserver (void) |
134 | init_ericserver (void) |
167 | { |
135 | { |
168 | struct sockaddr_in insock; |
136 | struct sockaddr_in insock; |
169 | struct protoent *protox; |
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170 | struct linger linger_opt; |
137 | struct linger linger_opt; |
171 | |
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172 | socket_info.max_filedescriptor = sysconf (_SC_OPEN_MAX); |
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173 | |
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174 | socket_info.timeout.tv_sec = 0; |
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175 | socket_info.timeout.tv_usec = 0; |
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176 | socket_info.nconns = 0; |
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177 | |
138 | |
178 | memset (&cst_tot, 0, sizeof (CS_Stats)); |
139 | memset (&cst_tot, 0, sizeof (CS_Stats)); |
179 | memset (&cst_lst, 0, sizeof (CS_Stats)); |
140 | memset (&cst_lst, 0, sizeof (CS_Stats)); |
180 | cst_tot.time_start = time (NULL); |
141 | cst_tot.time_start = time (NULL); |
181 | cst_lst.time_start = time (NULL); |
142 | cst_lst.time_start = time (NULL); |
182 | |
143 | |
183 | LOG (llevDebug, "Initialize new client/server data\n"); |
144 | LOG (llevDebug, "Initialize new client/server data\n"); |
184 | socket_info.nconns = 1; |
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185 | init_sockets = (client_socket *) malloc (sizeof (client_socket)); |
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186 | init_sockets[0].faces_sent = NULL; /* unused */ |
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187 | socket_info.allocated_sockets = 1; |
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188 | |
145 | |
189 | protox = getprotobyname ("tcp"); |
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190 | if (protox == NULL) |
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191 | { |
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192 | LOG (llevError, "init_ericserver: Error getting protox\n"); |
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193 | return; |
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194 | } |
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195 | |
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196 | init_sockets[0].fd = socket (PF_INET, SOCK_STREAM, protox->p_proto); |
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197 | if (init_sockets[0].fd == -1) |
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198 | { |
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199 | LOG (llevError, "Cannot create socket: %s\n", strerror (errno)); |
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200 | exit (-1); |
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201 | } |
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202 | |
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203 | insock.sin_family = AF_INET; |
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204 | insock.sin_port = htons (settings.csport); |
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205 | insock.sin_addr.s_addr = htonl (INADDR_ANY); |
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206 | |
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207 | linger_opt.l_onoff = 0; |
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208 | linger_opt.l_linger = 0; |
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209 | if (setsockopt (init_sockets[0].fd, SOL_SOCKET, SO_LINGER, (char *) &linger_opt, sizeof (struct linger))) |
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210 | LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno)); |
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211 | |
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212 | { |
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213 | int tmp = 1; |
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214 | |
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215 | if (setsockopt (init_sockets[0].fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof (tmp))) |
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216 | LOG (llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror (errno)); |
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217 | } |
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218 | |
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219 | if (bind (init_sockets[0].fd, (struct sockaddr *) &insock, sizeof (insock)) == (-1)) |
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220 | { |
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221 | LOG (llevError, "Cannot bind socket to port %d: %s\n", ntohs (insock.sin_port), strerror (errno)); |
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222 | close (init_sockets[0].fd); |
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223 | exit (-1); |
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224 | } |
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225 | |
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226 | if (listen (init_sockets[0].fd, 5) == (-1)) |
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227 | { |
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228 | LOG (llevError, "Cannot listen on socket: %s\n", strerror (errno)); |
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229 | close (init_sockets[0].fd); |
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230 | exit (-1); |
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231 | } |
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232 | |
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233 | init_sockets[0].status = Ns_Add; |
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234 | read_client_images (); |
146 | read_client_images (); |
235 | } |
147 | } |
236 | |
148 | |
237 | |
149 | |
238 | /******************************************************************************* |
150 | /******************************************************************************* |
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245 | void |
157 | void |
246 | free_all_newserver (void) |
158 | free_all_newserver (void) |
247 | { |
159 | { |
248 | LOG (llevDebug, "Freeing all new client/server information.\n"); |
160 | LOG (llevDebug, "Freeing all new client/server information.\n"); |
249 | free_socket_images (); |
161 | free_socket_images (); |
250 | free (init_sockets); |
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251 | } |
162 | } |
252 | |
163 | |
253 | /** |
164 | /** |
254 | * Frees a socket. |
165 | * Frees a socket. |
255 | * 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 |
… | |
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258 | */ |
169 | */ |
259 | |
170 | |
260 | void |
171 | void |
261 | free_newsocket (client_socket *ns) |
172 | free_newsocket (client_socket *ns) |
262 | { |
173 | { |
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174 | if (ns->fd >= 0) |
263 | close (ns->fd); |
175 | close (ns->fd); |
264 | |
176 | |
265 | if (ns->stats.range) |
177 | if (ns->stats.range) |
266 | free (ns->stats.range); |
178 | free (ns->stats.range); |
267 | |
179 | |
268 | if (ns->stats.title) |
180 | if (ns->stats.title) |
269 | free (ns->stats.title); |
181 | free (ns->stats.title); |
270 | |
182 | |
271 | free (ns->host); |
183 | free (ns->host); |
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184 | |
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185 | ns->fd = -1; |
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186 | ns->stats.range = 0; |
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187 | ns->stats.title = 0; |
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188 | ns->host = 0; |
272 | } |
189 | } |
273 | |
190 | |
274 | /** Sends the 'goodbye' command to the player, and closes connection. */ |
191 | /** Sends the 'goodbye' command to the player, and closes connection. */ |
275 | void |
192 | void |
276 | final_free_player (player *pl) |
193 | final_free_player (player *pl) |
277 | { |
194 | { |
278 | pl->socket.send_packet ("goodbye"); |
195 | pl->socket->send_packet ("goodbye"); |
279 | free_newsocket (&pl->socket); |
196 | free_newsocket (pl->socket); |
280 | free_player (pl); |
197 | free_player (pl); |
281 | } |
198 | } |
282 | |
199 | |
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200 | bool |
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201 | add_client_socket (int fd, const char *peername) |
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202 | { |
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203 | if (checkbanned (NULL, peername)) |
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204 | { |
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205 | LOG (llevInfo, "Banned host tried to connect: [%s]\n", peername); |
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206 | return false; |
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207 | } |
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208 | else |
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209 | { |
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210 | client_socket *ns = new client_socket (dup (fd), peername); |
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211 | client_sockets.push_back (ns); |
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212 | return true; |
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213 | } |
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214 | } |
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215 | |