1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
// Copyright (c) Hercules Dev Team, licensed under GNU GPL.
// See the LICENSE file
// Portions Copyright (c) Athena Dev Teams
#ifndef COMMON_SOCKET_H
#define COMMON_SOCKET_H
#include <time.h>
#include "../common/cbasetypes.h"
#ifdef WIN32
# include "../common/winapi.h"
typedef long in_addr_t;
#else
# include <netinet/in.h>
# include <sys/socket.h>
# include <sys/types.h>
#endif
struct HPluginData;
#define FIFOSIZE_SERVERLINK 256*1024
// socket I/O macros
#define RFIFOHEAD(fd)
#define WFIFOHEAD(fd, size) do{ if((fd) && session[fd]->wdata_size + (size) > session[fd]->max_wdata ) realloc_writefifo((fd), (size)); }while(0)
#define RFIFOP(fd,pos) (session[fd]->rdata + session[fd]->rdata_pos + (pos))
#define WFIFOP(fd,pos) (session[fd]->wdata + session[fd]->wdata_size + (pos))
#define RFIFOB(fd,pos) (*(uint8*)RFIFOP((fd),(pos)))
#define WFIFOB(fd,pos) (*(uint8*)WFIFOP((fd),(pos)))
#define RFIFOW(fd,pos) (*(uint16*)RFIFOP((fd),(pos)))
#define WFIFOW(fd,pos) (*(uint16*)WFIFOP((fd),(pos)))
#define RFIFOL(fd,pos) (*(uint32*)RFIFOP((fd),(pos)))
#define WFIFOL(fd,pos) (*(uint32*)WFIFOP((fd),(pos)))
#define RFIFOQ(fd,pos) (*(uint64*)RFIFOP((fd),(pos)))
#define WFIFOQ(fd,pos) (*(uint64*)WFIFOP((fd),(pos)))
#define RFIFOSPACE(fd) (session[fd]->max_rdata - session[fd]->rdata_size)
#define WFIFOSPACE(fd) (session[fd]->max_wdata - session[fd]->wdata_size)
#define RFIFOREST(fd) (session[fd]->flag.eof ? 0 : session[fd]->rdata_size - session[fd]->rdata_pos)
#define RFIFOFLUSH(fd) \
do { \
if(session[fd]->rdata_size == session[fd]->rdata_pos){ \
session[fd]->rdata_size = session[fd]->rdata_pos = 0; \
} else { \
session[fd]->rdata_size -= session[fd]->rdata_pos; \
memmove(session[fd]->rdata, session[fd]->rdata+session[fd]->rdata_pos, session[fd]->rdata_size); \
session[fd]->rdata_pos = 0; \
} \
} while(0)
/* [Ind/Hercules] */
#define RFIFO2PTR(fd) (void*)(session[fd]->rdata + session[fd]->rdata_pos)
// buffer I/O macros
#define RBUFP(p,pos) (((uint8*)(p)) + (pos))
#define RBUFB(p,pos) (*(uint8*)RBUFP((p),(pos)))
#define RBUFW(p,pos) (*(uint16*)RBUFP((p),(pos)))
#define RBUFL(p,pos) (*(uint32*)RBUFP((p),(pos)))
#define RBUFQ(p,pos) (*(uint64*)RBUFP((p),(pos)))
#define WBUFP(p,pos) (((uint8*)(p)) + (pos))
#define WBUFB(p,pos) (*(uint8*)WBUFP((p),(pos)))
#define WBUFW(p,pos) (*(uint16*)WBUFP((p),(pos)))
#define WBUFL(p,pos) (*(uint32*)WBUFP((p),(pos)))
#define WBUFQ(p,pos) (*(uint64*)WBUFP((p),(pos)))
#define TOB(n) ((uint8)((n)&UINT8_MAX))
#define TOW(n) ((uint16)((n)&UINT16_MAX))
#define TOL(n) ((uint32)((n)&UINT32_MAX))
// Struct declaration
typedef int (*RecvFunc)(int fd);
typedef int (*SendFunc)(int fd);
typedef int (*ParseFunc)(int fd);
struct socket_data {
struct {
unsigned char eof : 1;
unsigned char server : 1;
unsigned char ping : 2;
} flag;
uint32 client_addr; // remote client address
uint8 *rdata, *wdata;
size_t max_rdata, max_wdata;
size_t rdata_size, wdata_size;
size_t rdata_pos;
time_t rdata_tick; // time of last recv (for detecting timeouts); zero when timeout is disabled
RecvFunc func_recv;
SendFunc func_send;
ParseFunc func_parse;
void* session_data; // stores application-specific data related to the session
struct HPluginData **hdata;
unsigned int hdatac;
};
struct hSockOpt {
unsigned int silent : 1;
unsigned int setTimeo : 1;
};
/// Use a shortlist of sockets instead of iterating all sessions for sockets
/// that have data to send or need eof handling.
/// Adapted to use a static array instead of a linked list.
///
/// @author Buuyo-tama
#define SEND_SHORTLIST
// Note: purposely returns four comma-separated arguments
#define CONVIP(ip) ((ip)>>24)&0xFF,((ip)>>16)&0xFF,((ip)>>8)&0xFF,((ip)>>0)&0xFF
#define MAKEIP(a,b,c,d) ((uint32)( ( ( (a)&0xFF ) << 24 ) | ( ( (b)&0xFF ) << 16 ) | ( ( (c)&0xFF ) << 8 ) | ( ( (d)&0xFF ) << 0 ) ))
/**
* This stays out of the interface.
**/
struct socket_data **session;
/**
* Socket.c interface, mostly for reading however.
**/
struct socket_interface {
int fd_max;
/* */
time_t stall_time;
time_t last_tick;
/* */
uint32 addr_[16]; // ip addresses of local host (host byte order)
int naddr_; // # of ip addresses
/* */
void (*init) (void);
void (*final) (void);
/* */
int (*perform) (int next);
/* [Ind/Hercules] - socket_datasync */
void (*datasync) (int fd, bool send);
/* */
int (*make_listen_bind) (uint32 ip, uint16 port);
int (*make_connection) (uint32 ip, uint16 port, struct hSockOpt *opt);
int (*realloc_fifo) (int fd, unsigned int rfifo_size, unsigned int wfifo_size);
int (*realloc_writefifo) (int fd, size_t addition);
int (*WFIFOSET) (int fd, size_t len);
int (*RFIFOSKIP) (int fd, size_t len);
void (*close) (int fd);
/* */
bool (*session_isValid) (int fd);
bool (*session_isActive) (int fd);
/* */
void (*flush_fifo) (int fd);
void (*flush_fifos) (void);
void (*set_nonblocking) (int fd, unsigned long yes);
void (*set_defaultparse) (ParseFunc defaultparse);
/* hostname/ip conversion functions */
uint32 (*host2ip) (const char* hostname);
const char * (*ip2str) (uint32 ip, char ip_str[16]);
uint32 (*str2ip) (const char* ip_str);
/* */
uint16 (*ntows) (uint16 netshort);
/* */
int (*getips) (uint32* ips, int max);
/* */
void (*set_eof) (int fd);
};
struct socket_interface *sockt;
#ifdef HERCULES_CORE
void socket_defaults(void);
#endif // HERCULES_CORE
/* the purpose of these macros is simply to not make calling them be an annoyance */
#ifndef H_SOCKET_C
#define make_listen_bind(ip, port) ( sockt->make_listen_bind(ip, port) )
#define make_connection(ip, port, opt) ( sockt->make_connection(ip, port, opt) )
#define realloc_fifo(fd, rfifo_size, wfifo_size) ( sockt->realloc_fifo(fd, rfifo_size, wfifo_size) )
#define realloc_writefifo(fd, addition) ( sockt->realloc_writefifo(fd, addition) )
#define WFIFOSET(fd, len) ( sockt->WFIFOSET(fd, len) )
#define RFIFOSKIP(fd, len) ( sockt->RFIFOSKIP(fd, len) )
#define do_close(fd) ( sockt->close(fd) )
#define session_isValid(fd) ( sockt->session_isValid(fd) )
#define session_isActive(fd) ( sockt->session_isActive(fd) )
#define flush_fifo(fd) ( sockt->flush_fifo(fd) )
#define flush_fifos() ( sockt->flush_fifos() )
#define set_nonblocking(fd, yes) ( sockt->set_nonblocking(fd, yes) )
#define set_defaultparse(defaultparse) ( sockt->set_defaultparse(defaultparse) )
#define host2ip(hostname) ( sockt->host2ip(hostname) )
#define ip2str(ip, ip_str) ( sockt->ip2str(ip, ip_str) )
#define str2ip(ip_str) ( sockt->str2ip(ip_str) )
#define ntows(netshort) ( sockt->ntows(netshort) )
#define getips(ips, max) ( sockt->getips(ips, max) )
#define set_eof(fd) ( sockt->set_eof(fd) )
#endif /* H_SOCKET_C */
#endif /* COMMON_SOCKET_H */
|
