1/*-
2 * Copyright (c) 2000 Alfred Perlstein <alfred@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
| 1/*-
2 * Copyright (c) 2000 Alfred Perlstein <alfred@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
|
26 * $FreeBSD: head/sys/netinet/accf_data.c 66798 2000-10-07 23:15:17Z alfred $
| 26 * $FreeBSD: head/sys/netinet/accf_data.c 95552 2002-04-27 08:24:29Z tanimura $
|
27 */
28
29#define ACCEPT_FILTER_MOD
30
31#include <sys/param.h>
32#include <sys/sysctl.h>
33#include <sys/kernel.h>
34#include <sys/socketvar.h>
35
36/* accept filter that holds a socket until data arrives */
37
38static void sohasdata(struct socket *so, void *arg, int waitflag);
39
40static struct accept_filter accf_data_filter = {
41 "dataready",
42 sohasdata,
43 NULL,
44 NULL
45};
46
47static moduledata_t accf_data_mod = {
48 "accf_data",
49 accept_filt_generic_mod_event,
50 &accf_data_filter
51};
52
53DECLARE_MODULE(accf_data, accf_data_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE);
54
55static void
56sohasdata(struct socket *so, void *arg, int waitflag)
57{
58
| 27 */
28
29#define ACCEPT_FILTER_MOD
30
31#include <sys/param.h>
32#include <sys/sysctl.h>
33#include <sys/kernel.h>
34#include <sys/socketvar.h>
35
36/* accept filter that holds a socket until data arrives */
37
38static void sohasdata(struct socket *so, void *arg, int waitflag);
39
40static struct accept_filter accf_data_filter = {
41 "dataready",
42 sohasdata,
43 NULL,
44 NULL
45};
46
47static moduledata_t accf_data_mod = {
48 "accf_data",
49 accept_filt_generic_mod_event,
50 &accf_data_filter
51};
52
53DECLARE_MODULE(accf_data, accf_data_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE);
54
55static void
56sohasdata(struct socket *so, void *arg, int waitflag)
57{
58
|
| 59 SIGIO_SLOCK();
|
59 if (!soreadable(so)) {
| 60 if (!soreadable(so)) {
|
| 61 SIGIO_SUNLOCK();
|
60 return;
61 }
62
63 so->so_upcall = NULL;
64 so->so_rcv.sb_flags &= ~SB_UPCALL;
| 62 return;
63 }
64
65 so->so_upcall = NULL;
66 so->so_rcv.sb_flags &= ~SB_UPCALL;
|
65 soisconnected(so);
| 67 soisconnected_locked(so);
68 SIGIO_SUNLOCK();
|
66 return;
67}
| 69 return;
70}
|