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db137867 AC |
1 | /* |
2 | * ircd-ratbox: A slightly useful ircd. | |
3 | * commio-int.h: A header for the network subsystem. | |
4 | * | |
5 | * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center | |
6 | * Copyright (C) 1996-2002 Hybrid Development Team | |
7 | * Copyright (C) 2002-2007 ircd-ratbox development team | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 | |
22 | * USA | |
23 | * | |
db137867 AC |
24 | */ |
25 | ||
030272f3 VY |
26 | #ifndef _COMMIO_INT_H |
27 | #define _COMMIO_INT_H 1 | |
db137867 AC |
28 | |
29 | #define RB_FD_HASH_BITS 12 | |
30 | #define RB_FD_HASH_SIZE (1UL << RB_FD_HASH_BITS) | |
31 | #define RB_FD_HASH_MASK (RB_FD_HASH_SIZE-1) | |
32 | ||
33 | #define FD_DESC_SZ 128 /* hostlen + comment */ | |
34 | ||
db137867 AC |
35 | #define rb_hash_fd(x) ((x ^ (x >> RB_FD_HASH_BITS) ^ (x >> (RB_FD_HASH_BITS * 2))) & RB_FD_HASH_MASK) |
36 | ||
37 | #ifdef HAVE_WRITEV | |
3202e249 VY |
38 | #ifndef UIO_MAXIOV |
39 | # if defined(__FreeBSD__) || defined(__APPLE__) || defined(__NetBSD__) | |
db137867 | 40 | /* FreeBSD 4.7 defines it in sys/uio.h only if _KERNEL is specified */ |
3202e249 VY |
41 | # define RB_UIO_MAXIOV 1024 |
42 | # elif defined(__sgi) | |
db137867 | 43 | /* IRIX 6.5 has sysconf(_SC_IOV_MAX) which might return 512 or bigger */ |
3202e249 VY |
44 | # define RB_UIO_MAXIOV 512 |
45 | # elif defined(__sun) | |
db137867 | 46 | /* Solaris (and SunOS?) defines IOV_MAX instead */ |
3202e249 VY |
47 | # ifndef IOV_MAX |
48 | # define RB_UIO_MAXIOV 16 | |
49 | # else | |
50 | # define RB_UIO_MAXIOV IOV_MAX | |
51 | # endif | |
52 | ||
53 | # elif defined(IOV_MAX) | |
54 | # define RB_UIO_MAXIOV IOV_MAX | |
55 | # else | |
56 | # define RB_UIO_MAXIOV 16 | |
57 | # endif | |
db137867 | 58 | #else |
3202e249 VY |
59 | #define RB_UIO_MAXIOV UIO_MAXIOV |
60 | #endif | |
61 | #else | |
62 | #define RB_UIO_MAXIOV 16 | |
db137867 AC |
63 | #endif |
64 | struct conndata | |
65 | { | |
66 | /* We don't need the host here ? */ | |
67 | struct rb_sockaddr_storage S; | |
68 | struct rb_sockaddr_storage hostaddr; | |
69 | time_t t; | |
70 | CNCB *callback; | |
71 | void *data; | |
72 | /* We'd also add the retry count here when we get to that -- adrian */ | |
73 | }; | |
74 | ||
75 | struct acceptdata | |
76 | { | |
77 | struct rb_sockaddr_storage S; | |
78 | rb_socklen_t addrlen; | |
79 | ACCB *callback; | |
3202e249 | 80 | ACPRE *precb; |
db137867 AC |
81 | void *data; |
82 | }; | |
83 | ||
84 | /* Only have open flags for now, could be more later */ | |
85 | #define FLAG_OPEN 0x1 | |
86 | #define IsFDOpen(F) (F->flags & FLAG_OPEN) | |
87 | #define SetFDOpen(F) (F->flags |= FLAG_OPEN) | |
88 | #define ClearFDOpen(F) (F->flags &= ~FLAG_OPEN) | |
89 | ||
90 | ||
91 | struct _fde | |
92 | { | |
93 | /* New-school stuff, again pretty much ripped from squid */ | |
94 | /* | |
95 | * Yes, this gives us only one pending read and one pending write per | |
96 | * filedescriptor. Think though: when do you think we'll need more? | |
97 | */ | |
98 | rb_dlink_node node; | |
dc7e6b42 | 99 | rb_platform_fd_t fd; /* So we can use the rb_fde_t as a callback ptr */ |
a9fb3ed0 VY |
100 | uint8_t flags; |
101 | uint8_t type; | |
db137867 AC |
102 | int pflags; |
103 | char *desc; | |
104 | PF *read_handler; | |
105 | void *read_data; | |
106 | PF *write_handler; | |
107 | void *write_data; | |
108 | struct timeout_data *timeout; | |
109 | struct conndata *connect; | |
110 | struct acceptdata *accept; | |
111 | void *ssl; | |
c2ac22cc | 112 | unsigned int handshake_count; |
db137867 AC |
113 | unsigned long ssl_errno; |
114 | }; | |
115 | ||
3202e249 | 116 | typedef void (*comm_event_cb_t) (void *); |
db137867 AC |
117 | |
118 | #ifdef USE_TIMER_CREATE | |
3202e249 VY |
119 | typedef struct timer_data |
120 | { | |
121 | timer_t td_timer_id; | |
122 | comm_event_cb_t td_cb; | |
db137867 AC |
123 | void *td_udata; |
124 | int td_repeat; | |
125 | } *comm_event_id; | |
126 | #endif | |
127 | ||
128 | extern rb_dlink_list *rb_fd_table; | |
129 | ||
130 | static inline rb_fde_t * | |
dc7e6b42 | 131 | rb_find_fd(rb_platform_fd_t fd) |
db137867 AC |
132 | { |
133 | rb_dlink_list *hlist; | |
134 | rb_dlink_node *ptr; | |
3202e249 | 135 | |
c2ac22cc | 136 | if(rb_unlikely(fd < 0)) |
db137867 AC |
137 | return NULL; |
138 | ||
139 | hlist = &rb_fd_table[rb_hash_fd(fd)]; | |
140 | ||
141 | if(hlist->head == NULL) | |
142 | return NULL; | |
143 | ||
144 | RB_DLINK_FOREACH(ptr, hlist->head) | |
145 | { | |
146 | rb_fde_t *F = ptr->data; | |
147 | if(F->fd == fd) | |
148 | return F; | |
3202e249 | 149 | } |
db137867 AC |
150 | return NULL; |
151 | } | |
152 | ||
153 | ||
154 | int rb_setup_fd(rb_fde_t *F); | |
155 | void rb_connect_callback(rb_fde_t *F, int status); | |
156 | ||
157 | ||
158 | int rb_io_sched_event(struct ev_entry *ev, int when); | |
3202e249 | 159 | void rb_io_unsched_event(struct ev_entry *ev); |
db137867 AC |
160 | int rb_io_supports_event(void); |
161 | void rb_io_init_event(void); | |
162 | ||
163 | /* epoll versions */ | |
164 | void rb_setselect_epoll(rb_fde_t *F, unsigned int type, PF * handler, void *client_data); | |
165 | int rb_init_netio_epoll(void); | |
166 | int rb_select_epoll(long); | |
167 | int rb_setup_fd_epoll(rb_fde_t *F); | |
168 | ||
169 | void rb_epoll_init_event(void); | |
170 | int rb_epoll_sched_event(struct ev_entry *event, int when); | |
171 | void rb_epoll_unsched_event(struct ev_entry *event); | |
172 | int rb_epoll_supports_event(void); | |
3202e249 | 173 | |
db137867 AC |
174 | |
175 | /* poll versions */ | |
176 | void rb_setselect_poll(rb_fde_t *F, unsigned int type, PF * handler, void *client_data); | |
177 | int rb_init_netio_poll(void); | |
178 | int rb_select_poll(long); | |
179 | int rb_setup_fd_poll(rb_fde_t *F); | |
180 | ||
181 | /* devpoll versions */ | |
182 | void rb_setselect_devpoll(rb_fde_t *F, unsigned int type, PF * handler, void *client_data); | |
183 | int rb_init_netio_devpoll(void); | |
184 | int rb_select_devpoll(long); | |
185 | int rb_setup_fd_devpoll(rb_fde_t *F); | |
186 | ||
187 | /* sigio versions */ | |
188 | void rb_setselect_sigio(rb_fde_t *F, unsigned int type, PF * handler, void *client_data); | |
189 | int rb_init_netio_sigio(void); | |
190 | int rb_select_sigio(long); | |
191 | int rb_setup_fd_sigio(rb_fde_t *F); | |
192 | ||
193 | void rb_sigio_init_event(void); | |
194 | int rb_sigio_sched_event(struct ev_entry *event, int when); | |
195 | void rb_sigio_unsched_event(struct ev_entry *event); | |
196 | int rb_sigio_supports_event(void); | |
197 | ||
198 | ||
199 | /* ports versions */ | |
200 | void rb_setselect_ports(rb_fde_t *F, unsigned int type, PF * handler, void *client_data); | |
201 | int rb_init_netio_ports(void); | |
202 | int rb_select_ports(long); | |
203 | int rb_setup_fd_ports(rb_fde_t *F); | |
204 | ||
030272f3 VY |
205 | void rb_ports_init_event(void); |
206 | int rb_ports_sched_event(struct ev_entry *event, int when); | |
207 | void rb_ports_unsched_event(struct ev_entry *event); | |
208 | int rb_ports_supports_event(void); | |
209 | ||
210 | ||
db137867 AC |
211 | /* kqueue versions */ |
212 | void rb_setselect_kqueue(rb_fde_t *F, unsigned int type, PF * handler, void *client_data); | |
213 | int rb_init_netio_kqueue(void); | |
214 | int rb_select_kqueue(long); | |
215 | int rb_setup_fd_kqueue(rb_fde_t *F); | |
216 | ||
217 | void rb_kqueue_init_event(void); | |
218 | int rb_kqueue_sched_event(struct ev_entry *event, int when); | |
219 | void rb_kqueue_unsched_event(struct ev_entry *event); | |
220 | int rb_kqueue_supports_event(void); | |
221 | ||
222 | ||
223 | /* select versions */ | |
224 | void rb_setselect_select(rb_fde_t *F, unsigned int type, PF * handler, void *client_data); | |
225 | int rb_init_netio_select(void); | |
226 | int rb_select_select(long); | |
227 | int rb_setup_fd_select(rb_fde_t *F); | |
228 | ||
229 | /* win32 versions */ | |
230 | void rb_setselect_win32(rb_fde_t *F, unsigned int type, PF * handler, void *client_data); | |
231 | int rb_init_netio_win32(void); | |
232 | int rb_select_win32(long); | |
233 | int rb_setup_fd_win32(rb_fde_t *F); | |
030272f3 VY |
234 | #endif |
235 |