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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> |
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42 | #include <netinet/tcp.h> |
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43 | #include <netinet/ip.h> |
42 | #include <netdb.h> |
44 | #include <netdb.h> |
43 | |
45 | |
44 | #include <unistd.h> |
46 | #include <unistd.h> |
45 | #include <arpa/inet.h> |
47 | #include <arpa/inet.h> |
46 | |
48 | |
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51 | * socket setup is handled elsewhere. We do send a version to the |
53 | * socket setup is handled elsewhere. We do send a version to the |
52 | * client. |
54 | * client. |
53 | */ |
55 | */ |
54 | client::client (int fd, const char *peername) |
56 | client::client (int fd, const char *peername) |
55 | : fd (fd), host (strdup (peername)), |
57 | : fd (fd), host (strdup (peername)), |
56 | socket_ev (this, &client::socket_cb) |
58 | socket_ev (this, &client::socket_cb), |
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59 | cmd_ev (this, &client::cmd_cb), |
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60 | cc_inv (this), cc_other (this) |
57 | { |
61 | { |
58 | { |
62 | { |
59 | struct linger linger_opt; |
63 | struct linger linger_opt; |
60 | |
64 | |
61 | linger_opt.l_onoff = 0; |
65 | linger_opt.l_onoff = 0; |
62 | linger_opt.l_linger = 0; |
66 | linger_opt.l_linger = 0; |
63 | |
67 | |
64 | if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger))) |
68 | if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger))) |
65 | LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno)); |
69 | LOG (llevError, "SO_LINGER: %s\n", strerror (errno)); |
66 | } |
70 | } |
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71 | |
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72 | { |
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73 | int val = IPTOS_LOWDELAY; |
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74 | |
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75 | if (setsockopt (fd, IPPROTO_IP, IP_TOS, &val, sizeof (val))) |
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76 | LOG (llevError, "IP_TOS: %s\n", strerror (errno)); |
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77 | } |
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78 | |
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79 | { |
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80 | int val = 1; |
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81 | |
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82 | if (setsockopt (fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof (val))) |
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83 | LOG (llevError, "TCP_NODELAY: %s\n", strerror (errno)); |
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84 | } |
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85 | |
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86 | #ifdef __linux__ |
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87 | { |
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88 | int val; |
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89 | |
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90 | // set some very aggressive keepalive parameters |
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91 | val = 10; |
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92 | if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPIDLE, &val, sizeof (val))) |
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93 | LOG (llevError, "TCP_KEEPIDLE: %s\n", strerror (errno)); |
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94 | |
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95 | val = 5; |
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96 | if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPCNT, &val, sizeof (val))) |
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97 | LOG (llevError, "TCP_KEEPCNT: %s\n", strerror (errno)); |
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98 | |
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99 | val = 1; |
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100 | if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPINTVL, &val, sizeof (val))) |
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101 | LOG (llevError, "TCP_KEEPINTVL: %s\n", strerror (errno)); |
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102 | } |
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103 | #endif |
67 | |
104 | |
68 | { |
105 | { |
69 | int bufsize = 65535; /*Supposed absolute upper limit */ |
106 | int bufsize = 65535; /*Supposed absolute upper limit */ |
70 | int oldbufsize; |
107 | int oldbufsize; |
71 | int buflen = sizeof (int); |
108 | int buflen = sizeof (int); |
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89 | status = Ns_Add; |
126 | status = Ns_Add; |
90 | mapx = 11; |
127 | mapx = 11; |
91 | mapy = 11; |
128 | mapy = 11; |
92 | itemcmd = 1; /* Default is version item1 command */ |
129 | itemcmd = 1; /* Default is version item1 command */ |
93 | |
130 | |
94 | faces_sent_len = nrofpixmaps; |
131 | faces_sent = salloc<uint8> (nrofpixmaps, 0); |
95 | faces_sent = (uint8 *)calloc (nrofpixmaps, sizeof (*faces_sent)); |
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96 | if (!faces_sent) |
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97 | fatal (OUT_OF_MEMORY); |
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98 | |
132 | |
99 | /* Do this so we don't send a face command for the client for |
133 | /* Do this so we don't send a face command for the client for |
100 | * this face. Face 0 is sent to the client to say clear |
134 | * this face. Face 0 is sent to the client to say clear |
101 | * face information. |
135 | * face information. |
102 | */ |
136 | */ |
103 | faces_sent[0] = NS_FACESENT_FACE; |
137 | faces_sent[0] = NS_FACESENT_FACE; |
104 | |
138 | |
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139 | // socket I/O is low priority |
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140 | // we prefer to have the server run instead of handling client requests |
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141 | socket_ev.prio (PE_PRIO_NORMAL + 1); |
105 | socket_ev.fd (fd); |
142 | socket_ev.fd (fd); |
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143 | socket_ev.poll (PE_R); |
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144 | |
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145 | // command handling is even lower priority |
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146 | // that way no client can monopolise the server |
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147 | cmd_ev.prio (PE_PRIO_NORMAL + 2); |
106 | |
148 | |
107 | // initialisation done, kick it! |
149 | // initialisation done, kick it! |
108 | |
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109 | { |
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110 | packet sl; |
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111 | sl.printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO); |
150 | send_packet_printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO); |
112 | send_packet (sl); |
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113 | flush (); |
151 | flush (); |
114 | } |
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115 | |
152 | |
116 | #if 0//TODO |
153 | #if 0//TODO |
117 | socket_info.nconns++; |
154 | socket_info.nconns++; |
118 | if (socket_info.nconns > cst_tot.max_conn) cst_tot.max_conn = socket_info.nconns; |
155 | if (socket_info.nconns > cst_tot.max_conn) cst_tot.max_conn = socket_info.nconns; |
119 | if (socket_info.nconns > cst_lst.max_conn) cst_lst.max_conn = socket_info.nconns; |
156 | if (socket_info.nconns > cst_lst.max_conn) cst_lst.max_conn = socket_info.nconns; |
120 | #endif |
157 | #endif |
121 | } |
158 | } |
122 | |
159 | |
123 | client::~client () |
160 | client::~client () |
124 | { |
161 | { |
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162 | if (pl) |
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163 | pl->socket = 0; |
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164 | |
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165 | if (fd >= 0) |
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166 | close (fd); |
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167 | |
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168 | sfree<uint8> (faces_sent, nrofpixmaps); |
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169 | free (stats.range); |
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170 | free (stats.title); |
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171 | free (host); |
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172 | } |
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173 | |
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174 | void |
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175 | client::destroy () |
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176 | { |
125 | status = Ns_Dead; |
177 | status = Ns_Dead; |
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178 | socket_ev.suspend (); |
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179 | cmd_ev.suspend (); |
126 | } |
180 | } |
127 | |
181 | |
128 | /** This sets up the socket and reads all the image information into memory. */ |
182 | /** This sets up the socket and reads all the image information into memory. */ |
129 | void |
183 | void |
130 | init_ericserver (void) |
184 | init_ericserver (void) |
131 | { |
185 | { |
132 | struct sockaddr_in insock; |
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133 | struct linger linger_opt; |
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134 | |
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135 | memset (&cst_tot, 0, sizeof (CS_Stats)); |
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136 | memset (&cst_lst, 0, sizeof (CS_Stats)); |
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137 | cst_tot.time_start = time (NULL); |
186 | cst_tot.time_start = time (NULL); |
138 | cst_lst.time_start = time (NULL); |
187 | cst_lst.time_start = time (NULL); |
139 | |
188 | |
140 | LOG (llevDebug, "Initialize new client/server data\n"); |
189 | LOG (llevDebug, "Initialize new client/server data\n"); |
141 | |
190 | |
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155 | { |
204 | { |
156 | LOG (llevDebug, "Freeing all new client/server information.\n"); |
205 | LOG (llevDebug, "Freeing all new client/server information.\n"); |
157 | free_socket_images (); |
206 | free_socket_images (); |
158 | } |
207 | } |
159 | |
208 | |
160 | /** |
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161 | * Frees a socket. |
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162 | * Basically, all we need to do here is free all data structures that |
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163 | * might be associated with the socket. It is up to the caller to |
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164 | * update the list |
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165 | */ |
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166 | |
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167 | void |
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168 | free_newsocket (client *ns) |
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169 | { |
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170 | if (ns->fd >= 0) |
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171 | close (ns->fd); |
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172 | |
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173 | if (ns->stats.range) |
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174 | free (ns->stats.range); |
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175 | |
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176 | if (ns->stats.title) |
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177 | free (ns->stats.title); |
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178 | |
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179 | free (ns->host); |
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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; |
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185 | } |
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186 | |
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187 | /** Sends the 'goodbye' command to the player, and closes connection. */ |
209 | /** Sends the 'goodbye' command to the player, and closes connection. */ |
188 | void |
210 | void |
189 | final_free_player (player *pl) |
211 | final_free_player (player *pl) |
190 | { |
212 | { |
191 | pl->socket->send_packet ("goodbye"); |
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192 | free_newsocket (pl->socket); |
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193 | free_player (pl); |
213 | free_player (pl); |
194 | } |
214 | } |
195 | |
215 | |
196 | bool |
216 | bool |
197 | add_client (int fd, const char *peername) |
217 | add_client (int fd, const char *peername) |