… | |
… | |
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__ |
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38 | # include <sproto.h> |
37 | #include <sproto.h> |
39 | #endif |
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40 | #ifndef WIN32 /* ---win32 exclude include files */ |
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41 | # include <sys/types.h> |
38 | #include <sys/types.h> |
42 | # include <sys/time.h> |
39 | #include <sys/time.h> |
43 | # include <sys/socket.h> |
40 | #include <sys/socket.h> |
44 | # include <netinet/in.h> |
41 | #include <netinet/in.h> |
45 | # include <netdb.h> |
42 | #include <netdb.h> |
46 | #endif /* win32 */ |
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47 | |
43 | |
48 | #ifdef HAVE_UNISTD_H |
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49 | # include <unistd.h> |
44 | #include <unistd.h> |
50 | #endif |
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51 | |
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52 | #ifdef HAVE_ARPA_INET_H |
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53 | # include <arpa/inet.h> |
45 | #include <arpa/inet.h> |
54 | #endif |
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55 | #include <newserver.h> |
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|
56 | |
46 | |
57 | Socket_Info socket_info; |
47 | sockvec clients; |
58 | NewSocket *init_sockets; |
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59 | |
48 | |
60 | /** |
49 | /** |
61 | * Initializes a connection. Really, it just sets up the data structure, |
50 | * Initializes a connection. Really, it just sets up the data structure, |
62 | * socket setup is handled elsewhere. We do send a version to the |
51 | * socket setup is handled elsewhere. We do send a version to the |
63 | * client. |
52 | * client. |
64 | */ |
53 | */ |
65 | void |
54 | client::client (int fd, const char *peername) |
66 | InitConnection (NewSocket * ns, const char *from_ip) |
55 | : fd (fd), host (strdup (peername)), |
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56 | socket_ev (this, &client::socket_cb) |
67 | { |
57 | { |
68 | SockList sl; |
58 | { |
69 | char buf[256]; |
59 | struct linger linger_opt; |
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60 | |
|
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61 | linger_opt.l_onoff = 0; |
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62 | linger_opt.l_linger = 0; |
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63 | |
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64 | if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger))) |
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65 | LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno)); |
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66 | } |
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67 | |
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68 | { |
70 | int bufsize = 65535; /*Supposed absolute upper limit */ |
69 | int bufsize = 65535; /*Supposed absolute upper limit */ |
71 | int oldbufsize; |
70 | int oldbufsize; |
72 | int buflen = sizeof (int); |
71 | int buflen = sizeof (int); |
73 | |
72 | |
74 | #ifdef WIN32 /* ***WIN32 SOCKET: init win32 non blocking socket */ |
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75 | int temp = 1; |
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76 | |
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77 | if (ioctlsocket (ns->fd, FIONBIO, &temp) == -1) |
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78 | LOG (llevError, "InitConnection: Error on ioctlsocket.\n"); |
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79 | #else |
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80 | if (fcntl (ns->fd, F_SETFL, O_NONBLOCK) == -1) |
73 | if (fcntl (fd, F_SETFL, O_NONBLOCK) == -1) |
81 | { |
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82 | LOG (llevError, "InitConnection: Error on fcntl.\n"); |
74 | LOG (llevError, "InitConnection: Error on fcntl.\n"); |
83 | } |
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84 | #endif /* end win32 */ |
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85 | |
75 | |
86 | if (getsockopt (ns->fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen) == -1) |
76 | if (getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen) == -1) |
87 | oldbufsize = 0; |
77 | oldbufsize = 0; |
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78 | |
88 | if (oldbufsize < bufsize) |
79 | if (oldbufsize < bufsize) |
89 | { |
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90 | #ifdef ESRV_DEBUG |
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91 | LOG (llevDebug, "Default buffer size was %d bytes, will reset it to %d\n", oldbufsize, bufsize); |
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92 | #endif |
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93 | if (setsockopt (ns->fd, SOL_SOCKET, SO_SNDBUF, (char *) &bufsize, sizeof (&bufsize))) |
80 | if (setsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &bufsize, sizeof (&bufsize))) |
94 | { |
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95 | LOG (llevError, "InitConnection: setsockopt unable to set output buf size to %d\n", bufsize); |
81 | LOG (llevError, "InitConnection: setsockopt unable to set output buf size to %d\n", bufsize); |
96 | } |
82 | |
97 | } |
|
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98 | buflen = sizeof (oldbufsize); |
83 | buflen = sizeof (oldbufsize); |
99 | getsockopt (ns->fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen); |
84 | getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen); |
100 | #ifdef ESRV_DEBUG |
85 | } |
101 | LOG (llevDebug, "Socket buffer size now %d bytes\n", oldbufsize); |
|
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102 | #endif |
|
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103 | |
86 | |
104 | ns->faceset = 0; |
|
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105 | ns->facecache = 0; |
|
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106 | ns->image2 = 0; |
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107 | ns->sound = 0; |
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108 | ns->exp64 = 0; |
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109 | ns->monitor_spells = 0; |
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110 | ns->mapmode = Map0Cmd; |
87 | mapmode = Map0Cmd; |
111 | ns->darkness = 1; |
88 | darkness = 1; |
112 | ns->status = Ns_Add; |
89 | status = Ns_Add; |
113 | ns->mapx = 11; |
90 | mapx = 11; |
114 | ns->mapy = 11; |
91 | mapy = 11; |
115 | ns->newmapcmd = 0; |
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116 | ns->itemcmd = 1; /* Default is version item1 command */ |
92 | itemcmd = 1; /* Default is version item1 command */ |
117 | ns->ext_mapinfos = 0; /*extendedmapinfo datas */ |
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118 | ns->EMI_smooth = 0; |
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119 | ns->look_position = 0; |
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120 | ns->update_look = 0; |
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121 | ns->has_readable_type = 0; |
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122 | ns->supported_readables = 0; |
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123 | ns->monitor_spells = 0; |
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124 | ns->mapinfocmd = 0; |
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125 | ns->extcmd = 0; |
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126 | ns->extmap = 0; |
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127 | |
93 | |
128 | /* we should really do some checking here - if total clients overflows |
94 | faces_sent_len = nrofpixmaps; |
129 | * we need to do something more intelligent, because client id's will start |
95 | faces_sent = (uint8 *)calloc (nrofpixmaps, sizeof (*faces_sent)); |
130 | * duplicating (not likely in normal cases, but malicous attacks that |
96 | if (!faces_sent) |
131 | * just open and close connections could get this total up. |
97 | fatal (OUT_OF_MEMORY); |
132 | */ |
98 | |
133 | ns->inbuf.len = 0; |
|
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134 | ns->inbuf.buf = (unsigned char *) malloc (sizeof (unsigned char) * MAXSOCKBUF); |
|
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135 | /* Basic initialization. Needed because we do a check in |
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136 | * HandleClient for oldsocketmode without checking the |
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137 | * length of data. |
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138 | */ |
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139 | memset (ns->inbuf.buf, 0, sizeof (unsigned char) * MAXSOCKBUF); |
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140 | memset (&ns->lastmap, 0, sizeof (struct Map)); |
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141 | memset (ns->faces_sent, 0, ns->faces_sent_len * sizeof (*ns->faces_sent)); |
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142 | memset (&ns->anims_sent, 0, sizeof (ns->anims_sent)); |
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143 | memset (&ns->stats, 0, sizeof (struct statsinfo)); |
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144 | /* Do this so we don't send a face command for the client for |
99 | /* Do this so we don't send a face command for the client for |
145 | * this face. Face 0 is sent to the client to say clear |
100 | * this face. Face 0 is sent to the client to say clear |
146 | * face information. |
101 | * face information. |
147 | */ |
102 | */ |
148 | ns->faces_sent[0] = NS_FACESENT_FACE; |
103 | faces_sent[0] = NS_FACESENT_FACE; |
149 | |
104 | |
150 | ns->outputbuffer.start = 0; |
105 | socket_ev.fd (fd); |
151 | ns->outputbuffer.len = 0; |
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152 | ns->can_write = 1; |
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153 | ns->password_fails = 0; |
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154 | |
106 | |
155 | ns->current_map = 0; |
107 | // initialisation done, kick it! |
156 | ns->current_x = 0; |
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157 | ns->current_y = 0; |
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158 | ns->client[0] = 0; |
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159 | ns->buggy_mapscroll = 0; |
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160 | |
108 | |
161 | ns->sent_scroll = 0; |
109 | { |
162 | ns->host = strdup_local (from_ip); |
110 | packet sl; |
163 | sprintf ((char *) buf, "version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO); |
111 | sl.printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO); |
164 | sl.buf = (unsigned char *) buf; |
112 | send_packet (sl); |
165 | sl.len = strlen ((char *) buf); |
113 | flush (); |
166 | Send_With_Handling (ns, &sl); |
114 | } |
167 | #ifdef CS_LOGSTATS |
115 | |
168 | if (socket_info.nconns > cst_tot.max_conn) |
116 | #if 0//TODO |
169 | cst_tot.max_conn = socket_info.nconns; |
117 | socket_info.nconns++; |
170 | if (socket_info.nconns > cst_lst.max_conn) |
118 | if (socket_info.nconns > cst_tot.max_conn) cst_tot.max_conn = socket_info.nconns; |
171 | cst_lst.max_conn = socket_info.nconns; |
119 | if (socket_info.nconns > cst_lst.max_conn) cst_lst.max_conn = socket_info.nconns; |
172 | #endif |
120 | #endif |
173 | } |
121 | } |
174 | |
122 | |
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123 | client::~client () |
|
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124 | { |
|
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125 | status = Ns_Dead; |
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126 | } |
175 | |
127 | |
176 | /** This sets up the socket and reads all the image information into memory. */ |
128 | /** This sets up the socket and reads all the image information into memory. */ |
177 | void |
129 | void |
178 | init_ericserver (void) |
130 | init_ericserver (void) |
179 | { |
131 | { |
180 | struct sockaddr_in insock; |
132 | struct sockaddr_in insock; |
181 | struct protoent *protox; |
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182 | struct linger linger_opt; |
133 | struct linger linger_opt; |
183 | |
134 | |
184 | #ifdef WIN32 /* ***win32 - we init a windows socket */ |
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185 | WSADATA w; |
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186 | |
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187 | socket_info.max_filedescriptor = 1; /* used in select, ignored in winsockets */ |
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188 | WSAStartup (0x0101, &w); /* this setup all socket stuff */ |
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189 | /* ill include no error tests here, winsocket 1.1 should always work */ |
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190 | /* except some old win95 versions without tcp/ip stack */ |
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191 | #else /* non windows */ |
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192 | |
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193 | # ifdef HAVE_SYSCONF |
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194 | socket_info.max_filedescriptor = sysconf (_SC_OPEN_MAX); |
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195 | # else |
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196 | # ifdef HAVE_GETDTABLESIZE |
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197 | socket_info.max_filedescriptor = getdtablesize (); |
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198 | # else |
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199 | "Unable to find usable function to get max filedescriptors"; |
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200 | # endif |
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201 | # endif |
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202 | #endif /* win32 */ |
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203 | |
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204 | socket_info.timeout.tv_sec = 0; |
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205 | socket_info.timeout.tv_usec = 0; |
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206 | socket_info.nconns = 0; |
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207 | |
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208 | #ifdef CS_LOGSTATS |
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209 | memset (&cst_tot, 0, sizeof (CS_Stats)); |
135 | memset (&cst_tot, 0, sizeof (CS_Stats)); |
210 | memset (&cst_lst, 0, sizeof (CS_Stats)); |
136 | memset (&cst_lst, 0, sizeof (CS_Stats)); |
211 | cst_tot.time_start = time (NULL); |
137 | cst_tot.time_start = time (NULL); |
212 | cst_lst.time_start = time (NULL); |
138 | cst_lst.time_start = time (NULL); |
213 | #endif |
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214 | |
139 | |
215 | LOG (llevDebug, "Initialize new client/server data\n"); |
140 | LOG (llevDebug, "Initialize new client/server data\n"); |
216 | socket_info.nconns = 1; |
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217 | init_sockets = (NewSocket *) malloc (sizeof (NewSocket)); |
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218 | init_sockets[0].faces_sent = NULL; /* unused */ |
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219 | socket_info.allocated_sockets = 1; |
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220 | |
141 | |
221 | protox = getprotobyname ("tcp"); |
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222 | if (protox == NULL) |
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223 | { |
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224 | LOG (llevError, "init_ericserver: Error getting protox\n"); |
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225 | return; |
|
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226 | } |
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227 | init_sockets[0].fd = socket (PF_INET, SOCK_STREAM, protox->p_proto); |
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228 | if (init_sockets[0].fd == -1) |
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229 | { |
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230 | LOG (llevError, "Cannot create socket: %s\n", strerror (errno)); |
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231 | exit (-1); |
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232 | } |
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233 | insock.sin_family = AF_INET; |
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234 | insock.sin_port = htons (settings.csport); |
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235 | insock.sin_addr.s_addr = htonl (INADDR_ANY); |
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236 | |
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237 | linger_opt.l_onoff = 0; |
|
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238 | linger_opt.l_linger = 0; |
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239 | if (setsockopt (init_sockets[0].fd, SOL_SOCKET, SO_LINGER, (char *) &linger_opt, sizeof (struct linger))) |
|
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240 | { |
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241 | LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno)); |
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242 | } |
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243 | |
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244 | /* Would be nice to have an autoconf check for this. It appears that |
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245 | * these functions are both using the same calling syntax, just one |
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246 | * of them needs extra valus passed. |
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247 | */ |
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248 | #if defined(__osf__) || defined(hpux) || defined(sgi) || defined(NeXT) || \ |
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249 | defined(__sun__) || defined(__linux__) || defined(SVR4) || \ |
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250 | defined(__FreeBSD__) || defined(__OpenBSD__) || \ |
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251 | defined(WIN32) /* ---win32 add this here */ || \ |
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252 | defined(__GNU__) /* HURD */ |
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253 | { |
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254 | # ifdef WIN32 |
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255 | char tmp = 1; |
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256 | # else |
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257 | int tmp = 1; |
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258 | # endif |
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259 | |
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260 | if (setsockopt (init_sockets[0].fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof (tmp))) |
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261 | { |
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262 | LOG (llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror (errno)); |
|
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263 | } |
|
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264 | } |
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265 | #else |
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266 | if (setsockopt (init_sockets[0].fd, SOL_SOCKET, SO_REUSEADDR, (char *) NULL, 0)) |
|
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267 | { |
|
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268 | LOG (llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror (errno)); |
|
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269 | } |
|
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270 | #endif |
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271 | |
|
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272 | if (bind (init_sockets[0].fd, (struct sockaddr *) &insock, sizeof (insock)) == (-1)) |
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273 | { |
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274 | LOG (llevError, "Cannot bind socket to port %d: %s\n", ntohs (insock.sin_port), strerror (errno)); |
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275 | #ifdef WIN32 /* ***win32: close() -> closesocket() */ |
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276 | shutdown (init_sockets[0].fd, SD_BOTH); |
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277 | closesocket (init_sockets[0].fd); |
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278 | #else |
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279 | close (init_sockets[0].fd); |
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280 | #endif /* win32 */ |
|
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281 | exit (-1); |
|
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282 | } |
|
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283 | if (listen (init_sockets[0].fd, 5) == (-1)) |
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284 | { |
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285 | LOG (llevError, "Cannot listen on socket: %s\n", strerror (errno)); |
|
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286 | #ifdef WIN32 /* ***win32: close() -> closesocket() */ |
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287 | shutdown (init_sockets[0].fd, SD_BOTH); |
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288 | closesocket (init_sockets[0].fd); |
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289 | #else |
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290 | close (init_sockets[0].fd); |
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291 | #endif /* win32 */ |
|
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292 | exit (-1); |
|
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293 | } |
|
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294 | init_sockets[0].status = Ns_Add; |
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295 | read_client_images (); |
142 | read_client_images (); |
296 | } |
143 | } |
297 | |
144 | |
298 | |
145 | |
299 | /******************************************************************************* |
146 | /******************************************************************************* |
… | |
… | |
306 | void |
153 | void |
307 | free_all_newserver (void) |
154 | free_all_newserver (void) |
308 | { |
155 | { |
309 | LOG (llevDebug, "Freeing all new client/server information.\n"); |
156 | LOG (llevDebug, "Freeing all new client/server information.\n"); |
310 | free_socket_images (); |
157 | free_socket_images (); |
311 | free (init_sockets); |
|
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312 | } |
158 | } |
313 | |
159 | |
314 | /** |
160 | /** |
315 | * Frees a socket. |
161 | * Frees a socket. |
316 | * Basically, all we need to do here is free all data structures that |
162 | * Basically, all we need to do here is free all data structures that |
317 | * might be associated with the socket. It is up to the caller to |
163 | * might be associated with the socket. It is up to the caller to |
318 | * update the list |
164 | * update the list |
319 | */ |
165 | */ |
320 | |
166 | |
321 | void |
167 | void |
322 | free_newsocket (NewSocket * ns) |
168 | free_newsocket (client *ns) |
323 | { |
169 | { |
324 | #ifdef WIN32 /* ***win32: closesocket in windows style */ |
170 | if (ns->fd >= 0) |
325 | shutdown (ns->fd, SD_BOTH); |
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326 | if (closesocket (ns->fd)) |
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327 | { |
|
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328 | #else |
|
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329 | if (close (ns->fd)) |
171 | close (ns->fd); |
330 | { |
|
|
331 | #endif /* win32 */ |
|
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332 | |
|
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333 | #ifdef ESRV_DEBUG |
|
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334 | LOG (llevDebug, "Error closing socket %d\n", ns->fd); |
|
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335 | #endif |
|
|
336 | } |
|
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337 | |
172 | |
338 | if (ns->stats.range) |
173 | if (ns->stats.range) |
339 | free (ns->stats.range); |
174 | free (ns->stats.range); |
340 | |
175 | |
341 | if (ns->stats.title) |
176 | if (ns->stats.title) |
342 | free (ns->stats.title); |
177 | free (ns->stats.title); |
343 | |
178 | |
344 | free (ns->host); |
179 | free (ns->host); |
345 | free (ns->inbuf.buf); |
180 | |
|
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181 | ns->fd = -1; |
|
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182 | ns->stats.range = 0; |
|
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183 | ns->stats.title = 0; |
|
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184 | ns->host = 0; |
346 | } |
185 | } |
347 | |
186 | |
348 | /** Sends the 'goodbye' command to the player, and closes connection. */ |
187 | /** Sends the 'goodbye' command to the player, and closes connection. */ |
349 | void |
188 | void |
350 | final_free_player (player *pl) |
189 | final_free_player (player *pl) |
351 | { |
190 | { |
352 | cs_write_string (&pl->socket, "goodbye", 8); |
191 | pl->socket->send_packet ("goodbye"); |
353 | free_newsocket (&pl->socket); |
192 | free_newsocket (pl->socket); |
354 | free_player (pl); |
193 | free_player (pl); |
355 | } |
194 | } |
|
|
195 | |
|
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196 | bool |
|
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197 | add_client (int fd, const char *peername) |
|
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198 | { |
|
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199 | if (checkbanned (NULL, peername)) |
|
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200 | { |
|
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201 | LOG (llevInfo, "Banned host tried to connect: [%s]\n", peername); |
|
|
202 | return false; |
|
|
203 | } |
|
|
204 | else |
|
|
205 | { |
|
|
206 | client *ns = new client (dup (fd), peername); |
|
|
207 | clients.push_back (ns); |
|
|
208 | return true; |
|
|
209 | } |
|
|
210 | } |
|
|
211 | |