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1.1 |
/* |
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1.69 |
* This file is part of Deliantra, the Roguelike Realtime MMORPG. |
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pippijn |
1.26 |
* |
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1.93 |
* Copyright (©) 2005,2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
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pippijn |
1.26 |
* |
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1.87 |
* Deliantra is free software: you can redistribute it and/or modify it under |
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* the terms of the Affero GNU General Public License as published by the |
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* Free Software Foundation, either version 3 of the License, or (at your |
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* option) any later version. |
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pippijn |
1.26 |
* |
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1.59 |
* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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pippijn |
1.26 |
* |
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1.87 |
* You should have received a copy of the Affero GNU General Public License |
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* and the GNU General Public License along with this program. If not, see |
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* <http://www.gnu.org/licenses/>. |
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1.51 |
* |
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* The authors can be reached via e-mail to <support@deliantra.net> |
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1.26 |
*/ |
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1.1 |
|
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#ifndef CLIENT_H |
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#define CLIENT_H |
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1.65 |
#if HAVE_TCP_INFO |
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# include <netinet/tcp.h> |
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#else |
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1.74 |
struct tcp_info { |
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1.65 |
// dummy |
31 |
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1.75 |
int tcpi_state; |
32 |
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int tcpi_ca_state; |
33 |
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int tcpi_retransmits; |
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int tcpi_probes; |
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int tcpi_backoff; |
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int tcpi_options; |
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int tcpi_snd_wscale; |
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int tcpi_rcv_wscale; |
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int tcpi_rto; |
40 |
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int tcpi_ato; |
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int tcpi_snd_mss; |
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int tcpi_rcv_mss; |
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int tcpi_unacked; |
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int tcpi_sacked; |
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int tcpi_lost; |
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int tcpi_retrans; |
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int tcpi_fackets; |
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int tcpi_last_data_sent; |
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int tcpi_last_ack_sent; |
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int tcpi_last_data_recv; |
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int tcpi_last_ack_recv; |
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int tcpi_pmtu; |
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int tcpi_rcv_ssthresh; |
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int tcpi_rtt; |
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int tcpi_rttvar; |
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int tcpi_snd_ssthresh; |
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int tcpi_snd_cwnd; |
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int tcpi_advmss; |
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int tcpi_reordering; |
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1.65 |
}; |
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#endif |
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//+GPL |
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|
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1.4 |
// (possibly) max. number of objects "per page" in the ground container |
66 |
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1.11 |
#define FLOORBOX_PAGESIZE 50 |
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1.1 |
|
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struct MapCell |
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{ |
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1.79 |
tag_t player; // this is, unfortunately, very wasteful of memory space, but pretty bandwidth-efficient |
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1.37 |
int count; /* This is really darkness in the map1 command */ |
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1.32 |
faceidx faces[MAP_LAYERS]; |
73 |
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1.36 |
unsigned char stat_hp; // health of something in this space, or 0 |
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1.1 |
unsigned char flags; |
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1.37 |
uint8_t smooth[MAP_LAYERS]; |
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1.1 |
}; |
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1.33 |
#define MAX_CLIENT_X MAP_CLIENT_X |
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#define MAX_CLIENT_Y MAP_CLIENT_Y |
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1.1 |
|
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struct Map |
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{ |
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struct MapCell cells[MAX_CLIENT_X][MAX_CLIENT_Y]; |
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}; |
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/* True max is 16383 given current map compaction method */ |
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1.33 |
#define MAXANIMNUM 10000 |
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1.1 |
|
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struct statsinfo |
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{ |
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char *range, *title; |
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}; |
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/* This contains basic information on the socket structure. status is its |
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* current state. we set up our on buffers for sending/receiving, so we can |
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* handle some higher level functions. fd is the actual file descriptor we |
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* are using. |
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*/ |
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/* Only one map mode can actually be used, so lets make it a switch |
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* instead of having a bunch of different fields that needed to |
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* get toggled. |
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*/ |
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1.42 |
enum { Map0Cmd = 0, Map1Cmd = 1, Map1aCmd = 2 }; |
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1.1 |
|
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1.15 |
// states the socket can be in |
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enum { |
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ST_DEAD, // socket is dead |
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ST_SETUP, // initial handshake / setup / login |
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ST_PLAYING, // logged in an playing |
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ST_CUSTOM, // waiting for custom reply |
112 |
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113 |
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ST_GET_PARTY_PASSWORD, |
114 |
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}; |
115 |
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1.4 |
// a handler for a specific type of packet |
117 |
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enum { |
118 |
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1.28 |
PF_PLAYER = 0x01, // must have valid player / will by synchronised |
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PF_PLAYING = 0x02, // must be in playing state |
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PF_COMMAND0 = 0x04, // command starts at offset 0 |
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PF_COMMAND6 = 0x08, // command starts at offset 6 |
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1.4 |
}; |
123 |
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1.63 |
// face type.s bit 0 means "has meta info prepended" |
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enum { |
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FT_FACE = 0 * 2 + 0, // faces (images) |
127 |
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FT_MUSIC = 1 * 2 + 1, // background music |
128 |
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FT_SOUND = 2 * 2 + 1, // effects |
129 |
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FT_RSRC = 3 * 2 + 0, // generic data files |
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FT_NUM, |
131 |
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}; |
132 |
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1.4 |
struct packet_type |
134 |
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{ |
135 |
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const char *name; |
136 |
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void *cb; |
137 |
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int flags; |
138 |
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}; |
139 |
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140 |
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struct command |
141 |
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{ |
142 |
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tstamp stamp; |
143 |
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const packet_type *handler; |
144 |
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char *data; |
145 |
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int datalen; |
146 |
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}; |
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1.89 |
//-GPL |
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1.1 |
/* how many times we are allowed to give the wrong password before being kicked. */ |
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#define MAX_PASSWORD_FAILURES 5 |
152 |
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153 |
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1.21 |
INTERFACE_CLASS (client) // should become player when newsocket is a baseclass of player |
154 |
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struct client : zero_initialised, attachable |
155 |
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1.1 |
{ |
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int ACC (RW, fd); |
157 |
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1.10 |
unsigned int inbuf_len; // number of bytes valid in inbuf |
158 |
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1.20 |
statsinfo stats; |
159 |
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1.54 |
object_vector_index ACC (RO, active); |
160 |
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1.53 |
player_ptr ACC (RO, pl); |
161 |
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1.12 |
|
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1.10 |
char *ACC (RW, host); /* Which host it is connected from (ip address) */ |
163 |
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1.15 |
uint8 ACC (RW, state); /* Input state of the player (name, password, etc */ |
164 |
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1.25 |
|
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sint8 ACC (RW, last_level); /* Last level we sent to client */ |
166 |
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uint16 ACC (RW, last_flags); /* fire/run on flags for last tick */ |
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float ACC (RW, last_weapon_sp); /* if diff than weapon_sp, update client */ |
168 |
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1.76 |
sint32 ACC (RW, last_weight); /* Last weight as sent to client; -1 means do not send weight */ |
169 |
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1.25 |
sint32 ACC (RW, last_weight_limit); /* Last weight limit transmitted to client */ |
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uint32 ACC (RW, last_path_attuned); /* Last spell attunment sent to client */ |
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uint32 ACC (RW, last_path_repelled); /* Last spell repelled sent to client */ |
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uint32 ACC (RW, last_path_denied); /* Last spell denied sent to client */ |
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living ACC (RO, last_stats); /* Last stats as sent to client */ |
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float ACC (RW, last_speed); /* Last speed as sent to client */ |
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sint16 ACC (RW, last_resist[NROFATTACKS]);/* last resist values sent to client */ |
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sint64 ACC (RW, last_skill_exp[NUM_SKILLS]);/* shadow register. if != exp. obj update client */ |
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1.10 |
|
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1.20 |
bool ACC (RW, afk); /* player is afk */ |
179 |
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1.10 |
bool ACC (RW, sent_scroll); |
180 |
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bool ACC (RW, sound); /* does the client want sound */ |
181 |
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bool ACC (RW, newmapcmd); /* Send newmap command when entering new map SMACFIGGEN */ |
182 |
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1.40 |
bool ACC (RW, plugincmd); // extend the protocol through a plug-in */ |
183 |
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bool ACC (RW, mapinfocmd); // return map info and send map change info |
184 |
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1.85 |
uint8_t ACC (RW, extcmd); // call into extensions/plugins |
185 |
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1.10 |
bool ACC (RW, update_look); /* If true, we need to send the look window */ |
186 |
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1.91 |
bool ACC (RW, update_spells); // If true, we need to esrv_update_spells |
187 |
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1.10 |
bool ACC (RW, has_readable_type); /* If true client accept additional text information */ |
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/* used to arrange text in books, scrolls, or scripted dialogs */ |
189 |
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bool ACC (RW, monitor_spells); /* Client wishes to be informed when their spell list changes */ |
190 |
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1.84 |
bool ACC (RW, smoothing); // deliantra-style smoothing |
191 |
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1.1 |
|
192 |
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1.40 |
bool ACC (RW, force_newmap); // force a newmap before next map update |
193 |
root |
1.1 |
uint32 ACC (RW, supported_readables); /* each bit is a readable supported by client */ |
194 |
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uint16 ACC (RW, look_position); /* start of drawing of look window */ |
195 |
root |
1.43 |
uint16 ACC (RW, mss); // likely tcp maximum segment size |
196 |
root |
1.42 |
uint8 ACC (RW, mapmode); /* Type of map commands the client wants. */ |
197 |
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1.1 |
uint8 ACC (RW, mapx), ACC (RW, mapy); /* How large a map the client wants */ |
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uint8 ACC (RW, itemcmd); /* What version of the 'item' protocol command to use */ |
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200 |
root |
1.80 |
maptile_ptr ACC (RW, current_map); // CF+ last/current player map |
201 |
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region_ptr ACC (RW, current_region); // CF+ last/current player region |
202 |
root |
1.1 |
int ACC (RW, current_x), ACC (RW, current_y); // CF+ last/current map position |
203 |
root |
1.32 |
uint8 ACC (RW, faceset); // CF+ selected faceset |
204 |
root |
1.1 |
|
205 |
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1.53 |
tstamp ACC (RW, last_send); // last data send on socket. |
206 |
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1.1 |
|
207 |
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1.86 |
float ACC (RW, socket_timeout); /* after how many seconds of no ack do we declare dead */ |
208 |
root |
1.44 |
int ACC (RW, rate_avail); // current rate balance |
209 |
root |
1.38 |
int ACC (RW, max_rate); // max. # of bytes to send per tick |
210 |
root |
1.39 |
faceidx ACC (RW, scrub_idx); // which face to send next |
211 |
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int ACC (RW, bg_scrub); // how many ticks till the next background face send |
212 |
root |
1.45 |
|
213 |
root |
1.65 |
struct tcp_info tcpi; |
214 |
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tstamp next_rate_adjust; |
215 |
root |
1.67 |
|
216 |
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unordered_vector<char *> mapinfo_queue; |
217 |
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void mapinfo_queue_clear (); |
218 |
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void mapinfo_queue_run (); |
219 |
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bool mapinfo_try (char *buf); |
220 |
root |
1.65 |
|
221 |
root |
1.58 |
struct ixsend { |
222 |
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int16_t pri; // unused |
223 |
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faceidx idx; |
224 |
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uint32_t ofs; // if != 0, need to send remaining bytes of partial_face |
225 |
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}; |
226 |
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std::vector<ixsend, slice_allocator<ixsend> > ixface; // which faces to send to the client using ix |
227 |
root |
1.45 |
|
228 |
root |
1.57 |
std::vector<faceidx, slice_allocator<faceidx> > fxface; // which faces to send using fx |
229 |
root |
1.45 |
MTH void flush_fx (); // send fx if required |
230 |
root |
1.1 |
|
231 |
root |
1.21 |
void do_destroy (); |
232 |
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void gather_callbacks (AV *&callbacks, event_type event) const; |
233 |
root |
1.4 |
|
234 |
root |
1.70 |
iow socket_ev; void socket_cb (iow &w, int revents); |
235 |
root |
1.1 |
|
236 |
root |
1.4 |
std::deque< command, slice_allocator<command> > cmd_queue; |
237 |
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238 |
root |
1.14 |
// large structures at the end please |
239 |
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struct Map lastmap; |
240 |
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std::bitset<MAXANIMNUM> anims_sent; |
241 |
root |
1.36 |
std::bitset<MAX_FACES> faces_sent; |
242 |
root |
1.63 |
std::bitset<FT_NUM> fx_want; |
243 |
root |
1.36 |
|
244 |
root |
1.14 |
// if we get an incomplete packet, this is used to hold the data. |
245 |
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// we add 2 byte for the header, one for the trailing 0 byte |
246 |
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uint8 inbuf[MAXSOCKBUF + 2 + 1]; |
247 |
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248 |
root |
1.49 |
enum { MSG_BUF_SIZE = 80, MSG_BUF_COUNT = 10 }; |
249 |
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struct msg_buf |
250 |
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{ |
251 |
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tick_t expire; |
252 |
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int len; |
253 |
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int count; |
254 |
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char msg[MSG_BUF_SIZE]; |
255 |
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} msgbuf[MSG_BUF_COUNT]; |
256 |
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257 |
root |
1.92 |
MTH bool msg_suppressed (const_utf8_string msg); |
258 |
root |
1.49 |
|
259 |
root |
1.82 |
/* The following is the setup for a ring buffer for storing output |
260 |
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* data that the OS can't handle right away. |
261 |
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* TODO: this member is enourmously large - optimise? |
262 |
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*/ |
263 |
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struct |
264 |
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{ |
265 |
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char data[SOCKETBUFSIZE]; |
266 |
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int start; |
267 |
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int len; |
268 |
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} outputbuffer; |
269 |
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270 |
root |
1.4 |
bool may_execute (const packet_type *pkt) const; |
271 |
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void execute (const packet_type *pkt, char *data, int datalen); |
272 |
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273 |
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void queue_command (packet_type *handler, char *data, int datalen); |
274 |
root |
1.22 |
MTH bool handle_command (); |
275 |
root |
1.14 |
// resets movement state |
276 |
root |
1.22 |
MTH void reset_state (); |
277 |
root |
1.25 |
// resets variable data used to send stat diffs |
278 |
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MTH void reset_stats (); |
279 |
root |
1.1 |
|
280 |
root |
1.22 |
MTH bool handle_packet (); |
281 |
root |
1.4 |
int next_packet (); // returns length of packet or 0 |
282 |
root |
1.1 |
void skip_packet (int len); // we have processed the packet, skip it |
283 |
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284 |
root |
1.22 |
MTH void flush (); |
285 |
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MTH void write_outputbuffer (); |
286 |
root |
1.38 |
MTH int outputbuffer_len () const { return outputbuffer.len; } |
287 |
root |
1.1 |
void send (void *buf_, int len); |
288 |
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|
289 |
root |
1.92 |
void send_packet (const_octet_string buf); |
290 |
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void send_packet (const_octet_string buf, int len); |
291 |
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void send_packet_printf (const_utf8_string format, ...) attribute ((format (printf, 2, 3))); |
292 |
root |
1.1 |
void send_packet (packet &sl); |
293 |
root |
1.7 |
|
294 |
root |
1.92 |
void send_drawinfo (const_utf8_string msg, int flags = NDI_BLACK); |
295 |
root |
1.60 |
|
296 |
root |
1.63 |
MTH void send_face (faceidx facenum, int pri = 0); |
297 |
root |
1.35 |
MTH void send_faces (object *ob); |
298 |
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MTH void send_animation (short anim_num); |
299 |
root |
1.92 |
void send_msg (int color, const_utf8_string type, const_utf8_string msg); |
300 |
root |
1.35 |
|
301 |
root |
1.64 |
MTH void play_sound (faceidx sound, int dx = 0, int dy = 0); |
302 |
root |
1.10 |
// called when something under the player changes |
303 |
root |
1.22 |
MTH void floorbox_update () { update_look = 1; } |
304 |
root |
1.10 |
// called when the player has been moved |
305 |
root |
1.22 |
MTH void floorbox_reset () { look_position = 0; floorbox_update (); } |
306 |
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|
307 |
root |
1.39 |
MTH void tick (); // called every server tick to do housekeeping etc. |
308 |
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|
309 |
root |
1.22 |
MTH static client *create (int fd, const char *peername); |
310 |
root |
1.66 |
MTH static void clock (); |
311 |
|
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MTH static void flush_sockets (); |
312 |
root |
1.10 |
|
313 |
root |
1.22 |
protected: |
314 |
|
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client (int fd, const char *from_ip); |
315 |
|
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~client (); |
316 |
root |
1.1 |
}; |
317 |
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|
318 |
root |
1.67 |
#if FOR_PERL |
319 |
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ACC (RW, tcpi.tcpi_state); |
320 |
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ACC (RW, tcpi.tcpi_ca_state); |
321 |
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ACC (RW, tcpi.tcpi_retransmits); |
322 |
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ACC (RW, tcpi.tcpi_probes); |
323 |
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ACC (RW, tcpi.tcpi_backoff); |
324 |
|
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ACC (RW, tcpi.tcpi_options); |
325 |
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ACC (RO, tcpi.tcpi_snd_wscale); |
326 |
|
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ACC (RO, tcpi.tcpi_rcv_wscale); |
327 |
|
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ACC (RW, tcpi.tcpi_rto); |
328 |
|
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ACC (RW, tcpi.tcpi_ato); |
329 |
|
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ACC (RW, tcpi.tcpi_snd_mss); |
330 |
|
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ACC (RW, tcpi.tcpi_rcv_mss); |
331 |
|
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ACC (RW, tcpi.tcpi_unacked); |
332 |
|
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ACC (RW, tcpi.tcpi_sacked); |
333 |
|
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ACC (RW, tcpi.tcpi_lost); |
334 |
|
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ACC (RW, tcpi.tcpi_retrans); |
335 |
|
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ACC (RW, tcpi.tcpi_fackets); |
336 |
|
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ACC (RW, tcpi.tcpi_last_data_sent); |
337 |
|
|
ACC (RW, tcpi.tcpi_last_ack_sent); |
338 |
|
|
ACC (RW, tcpi.tcpi_last_data_recv); |
339 |
|
|
ACC (RW, tcpi.tcpi_last_ack_recv); |
340 |
|
|
ACC (RW, tcpi.tcpi_pmtu); |
341 |
|
|
ACC (RW, tcpi.tcpi_rcv_ssthresh); |
342 |
|
|
ACC (RW, tcpi.tcpi_rtt); |
343 |
|
|
ACC (RW, tcpi.tcpi_rttvar); |
344 |
|
|
ACC (RW, tcpi.tcpi_snd_ssthresh); |
345 |
|
|
ACC (RW, tcpi.tcpi_snd_cwnd); |
346 |
|
|
ACC (RW, tcpi.tcpi_advmss); |
347 |
|
|
ACC (RW, tcpi.tcpi_reordering); |
348 |
|
|
#endif |
349 |
|
|
|
350 |
root |
1.89 |
//+GPL |
351 |
|
|
|
352 |
root |
1.1 |
#define CLIENT_SUPPORT_READABLES(__sockPtr,__type)\ |
353 |
|
|
( ((__type)>0) &&\ |
354 |
|
|
((__sockPtr)->has_readable_type) && \ |
355 |
|
|
((__sockPtr)->supported_readables & (1<<(__type))) ) |
356 |
|
|
|
357 |
|
|
#define FACE_TYPES 1 |
358 |
|
|
#define PNG_FACE_INDEX 0 |
359 |
|
|
|
360 |
root |
1.89 |
//-GPL |
361 |
|
|
|
362 |
root |
1.24 |
typedef object_vector<client, &client::active> sockvec; |
363 |
root |
1.1 |
|
364 |
|
|
extern sockvec clients; |
365 |
root |
1.24 |
|
366 |
|
|
#define for_all_clients(var) \ |
367 |
|
|
for (int _i = 0; _i < clients.size (); ++_i) \ |
368 |
root |
1.52 |
statementvar (client *, var, clients [_i]) |
369 |
root |
1.24 |
|
370 |
root |
1.78 |
// returns true when the message needs special (read: perl) treatment |
371 |
|
|
static inline bool |
372 |
root |
1.92 |
msg_is_special (const_any_string msg, bool nl_special = true) |
373 |
root |
1.78 |
{ |
374 |
root |
1.81 |
return msg [strcspn (msg, nl_special ? "<&\n" : "<&")]; |
375 |
root |
1.78 |
} |
376 |
|
|
|
377 |
root |
1.1 |
#endif |
378 |
|
|
|