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29 | * |
29 | * |
30 | * Mainly deals with initialization and higher level socket |
30 | * Mainly deals with initialization and higher level socket |
31 | * maintenance (checking for lost connections and if data has arrived.) |
31 | * maintenance (checking for lost connections and if data has arrived.) |
32 | * The reading of data is handled in ericserver.c |
32 | * The reading of data is handled in ericserver.c |
33 | */ |
33 | */ |
34 | |
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35 | |
34 | |
36 | #include <global.h> |
35 | #include <global.h> |
37 | #include <sproto.h> |
36 | #include <sproto.h> |
38 | #include <sys/types.h> |
37 | #include <sys/types.h> |
39 | #include <sys/time.h> |
38 | #include <sys/time.h> |
40 | #include <sys/socket.h> |
39 | #include <sys/socket.h> |
41 | #include <netinet/in.h> |
40 | #include <netinet/in.h> |
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41 | #include <netinet/tcp.h> |
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42 | #include <netinet/ip.h> |
42 | #include <netdb.h> |
43 | #include <netdb.h> |
43 | |
44 | |
44 | #include <unistd.h> |
45 | #include <unistd.h> |
45 | #include <arpa/inet.h> |
46 | #include <arpa/inet.h> |
46 | |
47 | |
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52 | * client. |
53 | * client. |
53 | */ |
54 | */ |
54 | client::client (int fd, const char *peername) |
55 | client::client (int fd, const char *peername) |
55 | : fd (fd), host (strdup (peername)), |
56 | : fd (fd), host (strdup (peername)), |
56 | socket_ev (this, &client::socket_cb), |
57 | socket_ev (this, &client::socket_cb), |
57 | cmd_ev (this, &client::cmd_cb) |
58 | cmd_ev (this, &client::cmd_cb), |
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59 | cc_inv (this), cc_other (this) |
58 | { |
60 | { |
59 | { |
61 | { |
60 | struct linger linger_opt; |
62 | struct linger linger_opt; |
61 | |
63 | |
62 | linger_opt.l_onoff = 0; |
64 | linger_opt.l_onoff = 0; |
63 | linger_opt.l_linger = 0; |
65 | linger_opt.l_linger = 0; |
64 | |
66 | |
65 | if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger))) |
67 | if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger))) |
66 | LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno)); |
68 | LOG (llevError, "SO_LINGER: %s\n", strerror (errno)); |
67 | } |
69 | } |
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70 | |
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71 | { |
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72 | int val = IPTOS_LOWDELAY; |
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73 | |
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74 | if (setsockopt (fd, IPPROTO_IP, IP_TOS, &val, sizeof (val))) |
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75 | LOG (llevError, "IP_TOS: %s\n", strerror (errno)); |
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76 | } |
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77 | |
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78 | { |
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79 | int val = 1; |
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80 | |
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81 | if (setsockopt (fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof (val))) |
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82 | LOG (llevError, "TCP_NODELAY: %s\n", strerror (errno)); |
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83 | } |
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84 | |
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85 | #ifdef __linux__ |
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86 | { |
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87 | int val; |
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88 | |
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89 | // set some very aggressive keepalive parameters |
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90 | val = 10; |
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91 | if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPIDLE, &val, sizeof (val))) |
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92 | LOG (llevError, "TCP_KEEPIDLE: %s\n", strerror (errno)); |
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93 | |
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94 | val = 5; |
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95 | if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPCNT, &val, sizeof (val))) |
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96 | LOG (llevError, "TCP_KEEPCNT: %s\n", strerror (errno)); |
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97 | |
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98 | val = 1; |
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99 | if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPINTVL, &val, sizeof (val))) |
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100 | LOG (llevError, "TCP_KEEPINTVL: %s\n", strerror (errno)); |
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101 | } |
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102 | #endif |
68 | |
103 | |
69 | { |
104 | { |
70 | int bufsize = 65535; /*Supposed absolute upper limit */ |
105 | int bufsize = 65535; /*Supposed absolute upper limit */ |
71 | int oldbufsize; |
106 | int oldbufsize; |
72 | int buflen = sizeof (int); |
107 | int buflen = sizeof (int); |
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83 | |
118 | |
84 | buflen = sizeof (oldbufsize); |
119 | buflen = sizeof (oldbufsize); |
85 | getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen); |
120 | getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen); |
86 | } |
121 | } |
87 | |
122 | |
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123 | state = ST_SETUP; |
88 | mapmode = Map0Cmd; |
124 | mapmode = Map0Cmd; |
89 | darkness = 1; |
125 | darkness = 1; |
90 | status = Ns_Add; |
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91 | mapx = 11; |
126 | mapx = 11; |
92 | mapy = 11; |
127 | mapy = 11; |
93 | itemcmd = 1; /* Default is version item1 command */ |
128 | itemcmd = 1; /* Default is version item1 command */ |
94 | |
129 | |
95 | faces_sent = salloc<uint8> (nrofpixmaps, 0); |
130 | faces_sent = salloc0<uint8> (nrofpixmaps); |
96 | |
131 | |
97 | /* Do this so we don't send a face command for the client for |
132 | /* Do this so we don't send a face command for the client for |
98 | * this face. Face 0 is sent to the client to say clear |
133 | * this face. Face 0 is sent to the client to say clear |
99 | * face information. |
134 | * face information. |
100 | */ |
135 | */ |
… | |
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122 | } |
157 | } |
123 | |
158 | |
124 | client::~client () |
159 | client::~client () |
125 | { |
160 | { |
126 | if (pl) |
161 | if (pl) |
127 | pl->socket = 0; |
162 | pl->ns = 0; |
128 | |
163 | |
129 | if (fd >= 0) |
164 | if (fd >= 0) |
130 | close (fd); |
165 | close (fd); |
131 | |
166 | |
132 | free (faces_sent); |
167 | sfree<uint8> (faces_sent, nrofpixmaps); |
133 | free (stats.range); |
168 | free (stats.range); |
134 | free (stats.title); |
169 | free (stats.title); |
135 | free (host); |
170 | free (host); |
136 | } |
171 | } |
137 | |
172 | |
138 | void |
173 | void |
139 | client::destroy () |
174 | client::destroy () |
140 | { |
175 | { |
141 | status = Ns_Dead; |
176 | INVOKE_CLIENT (DESTROY, this); |
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177 | |
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178 | state = ST_DEAD; |
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179 | |
142 | socket_ev.suspend (); |
180 | socket_ev.suspend (); |
143 | cmd_ev.suspend (); |
181 | cmd_ev.suspend (); |
144 | } |
182 | } |
145 | |
183 | |
146 | /** This sets up the socket and reads all the image information into memory. */ |
184 | /** This sets up the socket and reads all the image information into memory. */ |
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175 | final_free_player (player *pl) |
213 | final_free_player (player *pl) |
176 | { |
214 | { |
177 | free_player (pl); |
215 | free_player (pl); |
178 | } |
216 | } |
179 | |
217 | |
180 | bool |
218 | client * |
181 | add_client (int fd, const char *peername) |
219 | client::create (int fd, const char *peername) |
182 | { |
220 | { |
183 | if (checkbanned (NULL, peername)) |
221 | if (checkbanned (NULL, peername)) |
184 | { |
222 | { |
185 | LOG (llevInfo, "Banned host tried to connect: [%s]\n", peername); |
223 | LOG (llevInfo, "Banned host tried to connect: [%s]\n", peername); |
186 | return false; |
224 | return 0; |
187 | } |
225 | } |
188 | else |
226 | else |
189 | { |
227 | { |
190 | client *ns = new client (dup (fd), peername); |
228 | client *ns = new client (dup (fd), peername); |
191 | clients.push_back (ns); |
229 | clients.push_back (ns); |
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230 | |
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231 | ns->instantiate (); // effectively a nop right now |
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232 | |
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233 | INVOKE_CLIENT (CONNECT, ns); |
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234 | |
192 | return true; |
235 | return ns; |
193 | } |
236 | } |
194 | } |
237 | } |
195 | |
238 | |