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/**********************************************************************
Freeciv - Copyright (C) 1996 - A Kjeldberg, L Gregersen, P Unold
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
***********************************************************************/
#ifndef FC__PACKETS_H
#define FC__PACKETS_H
struct connection;
struct data_in;
#include "connection.h" /* struct connection, MAX_LEN_* */
#include "diptreaty.h"
#include "events.h"
#include "improvement.h"
#include "map.h"
#include "player.h"
#include "requirements.h"
#include "shared.h" /* MAX_LEN_NAME, MAX_LEN_ADDR */
#include "spaceship.h"
#include "team.h"
#include "unittype.h"
#include "worklist.h"
#define MAX_LEN_USERNAME 10 /* see below */
#define MAX_LEN_MSG 1536
#define MAX_LEN_ROUTE 2000 /* MAX_LEN_PACKET/2 - header */
/* The size of opaque (void *) data sent in the network packet. To avoid
* fragmentation issues, this SHOULD NOT be larger than the standard
* ethernet or PPP 1500 byte frame size (with room for headers).
*
* Do not spend much time optimizing, you have no idea of the actual dynamic
* path characteristics between systems, such as VPNs and tunnels.
*/
#define ATTRIBUTE_CHUNK_SIZE (1400)
enum report_type {
REPORT_WONDERS_OF_THE_WORLD,
REPORT_TOP_5_CITIES,
REPORT_DEMOGRAPHIC
};
enum spaceship_place_type {
SSHIP_PLACE_STRUCTURAL,
SSHIP_PLACE_FUEL,
SSHIP_PLACE_PROPULSION,
SSHIP_PLACE_HABITATION,
SSHIP_PLACE_LIFE_SUPPORT,
SSHIP_PLACE_SOLAR_PANELS
};
enum unit_info_use {
UNIT_INFO_IDENTITY,
UNIT_INFO_CITY_SUPPORTED,
UNIT_INFO_CITY_PRESENT
};
enum authentication_type {
AUTH_LOGIN_FIRST, /* request a password for a returning user */
AUTH_NEWUSER_FIRST, /* request a password for a new user */
AUTH_LOGIN_RETRY, /* inform the client to try a different password */
AUTH_NEWUSER_RETRY /* inform the client to try a different [new] password */
};
#include "packets_gen.h"
void *get_packet_from_connection(struct connection *pc, enum packet_type *ptype, bool *presult);
void remove_packet_from_buffer(struct socket_packet_buffer *buffer);
void send_attribute_block(const struct player *pplayer,
struct connection *pconn);
void generic_handle_player_attribute_chunk(struct player *pplayer,
const struct
packet_player_attribute_chunk
*chunk);
const char *get_packet_name(enum packet_type type);
void pre_send_packet_chat_msg(struct connection *pc,
struct packet_chat_msg *packet);
void post_receive_packet_chat_msg(struct connection *pc,
struct packet_chat_msg *packet);
void pre_send_packet_player_attribute_chunk(struct connection *pc,
struct packet_player_attribute_chunk
*packet);
void post_receive_packet_game_state(struct connection *pc,
struct packet_game_state *packet);
void post_send_packet_game_state(struct connection *pc,
const struct packet_game_state *packet);
#define SEND_PACKET_START(type) \
unsigned char buffer[MAX_LEN_PACKET]; \
struct data_out dout; \
\
dio_output_init(&dout, buffer, sizeof(buffer)); \
dio_put_uint16(&dout, 0); \
dio_put_uint8(&dout, type);
#define SEND_PACKET_END \
{ \
size_t size = dio_output_used(&dout); \
\
dio_output_rewind(&dout); \
dio_put_uint16(&dout, size); \
return send_packet_data(pc, buffer, size); \
}
#define RECEIVE_PACKET_START(type, result) \
struct data_in din; \
struct type *result = fc_malloc(sizeof(*result)); \
\
dio_input_init(&din, pc->buffer->data, 2); \
{ \
int size; \
\
dio_get_uint16(&din, &size); \
dio_input_init(&din, pc->buffer->data, MIN(size, pc->buffer->ndata)); \
} \
dio_get_uint16(&din, NULL); \
dio_get_uint8(&din, NULL);
#define RECEIVE_PACKET_END(result) \
check_packet(&din, pc); \
remove_packet_from_buffer(pc->buffer); \
return result;
int send_packet_data(struct connection *pc, unsigned char *data, int len);
void check_packet(struct data_in *din, struct connection *pc);
#endif /* FC__PACKETS_H */
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