| 1 | /* $NetBSD: kern_select_50.c,v 1.1 2011/01/17 15:57:04 pooka Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 2008, 2009 The NetBSD Foundation, Inc. |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * This code is derived from software contributed to The NetBSD Foundation |
| 8 | * by Christos Zoulas. |
| 9 | * |
| 10 | * Redistribution and use in source and binary forms, with or without |
| 11 | * modification, are permitted provided that the following conditions |
| 12 | * are met: |
| 13 | * 1. Redistributions of source code must retain the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer. |
| 15 | * 2. Redistributions in binary form must reproduce the above copyright |
| 16 | * notice, this list of conditions and the following disclaimer in the |
| 17 | * documentation and/or other materials provided with the distribution. |
| 18 | * |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
| 20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
| 23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 29 | * POSSIBILITY OF SUCH DAMAGE. |
| 30 | */ |
| 31 | #include <sys/cdefs.h> |
| 32 | __KERNEL_RCSID(0, "$NetBSD: kern_select_50.c,v 1.1 2011/01/17 15:57:04 pooka Exp $" ); |
| 33 | |
| 34 | #include <sys/param.h> |
| 35 | #include <sys/event.h> |
| 36 | #include <sys/poll.h> |
| 37 | #include <sys/select.h> |
| 38 | #include <sys/time.h> |
| 39 | #include <sys/syscallargs.h> |
| 40 | |
| 41 | #include <compat/sys/time.h> |
| 42 | |
| 43 | static int |
| 44 | compat_50_kevent_fetch_timeout(const void *src, void *dest, size_t length) |
| 45 | { |
| 46 | struct timespec50 ts50; |
| 47 | int error; |
| 48 | |
| 49 | KASSERT(length == sizeof(struct timespec)); |
| 50 | |
| 51 | error = copyin(src, &ts50, sizeof(ts50)); |
| 52 | if (error) |
| 53 | return error; |
| 54 | timespec50_to_timespec(&ts50, (struct timespec *)dest); |
| 55 | return 0; |
| 56 | } |
| 57 | |
| 58 | int |
| 59 | compat_50_sys_kevent(struct lwp *l, const struct compat_50_sys_kevent_args *uap, |
| 60 | register_t *retval) |
| 61 | { |
| 62 | /* { |
| 63 | syscallarg(int) fd; |
| 64 | syscallarg(keventp_t) changelist; |
| 65 | syscallarg(size_t) nchanges; |
| 66 | syscallarg(keventp_t) eventlist; |
| 67 | syscallarg(size_t) nevents; |
| 68 | syscallarg(struct timespec50) timeout; |
| 69 | } */ |
| 70 | static const struct kevent_ops compat_50_kevent_ops = { |
| 71 | .keo_private = NULL, |
| 72 | .keo_fetch_timeout = compat_50_kevent_fetch_timeout, |
| 73 | .keo_fetch_changes = kevent_fetch_changes, |
| 74 | .keo_put_events = kevent_put_events, |
| 75 | }; |
| 76 | |
| 77 | return kevent1(retval, SCARG(uap, fd), SCARG(uap, changelist), |
| 78 | SCARG(uap, nchanges), SCARG(uap, eventlist), SCARG(uap, nevents), |
| 79 | (const struct timespec *)(const void *)SCARG(uap, timeout), |
| 80 | &compat_50_kevent_ops); |
| 81 | } |
| 82 | |
| 83 | int |
| 84 | compat_50_sys_select(struct lwp *l, |
| 85 | const struct compat_50_sys_select_args *uap, register_t *retval) |
| 86 | { |
| 87 | /* { |
| 88 | syscallarg(int) nd; |
| 89 | syscallarg(fd_set *) in; |
| 90 | syscallarg(fd_set *) ou; |
| 91 | syscallarg(fd_set *) ex; |
| 92 | syscallarg(struct timeval50 *) tv; |
| 93 | } */ |
| 94 | struct timespec ats, *ts = NULL; |
| 95 | struct timeval50 atv50; |
| 96 | int error; |
| 97 | |
| 98 | if (SCARG(uap, tv)) { |
| 99 | error = copyin(SCARG(uap, tv), (void *)&atv50, sizeof(atv50)); |
| 100 | if (error) |
| 101 | return error; |
| 102 | ats.tv_sec = atv50.tv_sec; |
| 103 | ats.tv_nsec = atv50.tv_usec * 1000; |
| 104 | ts = &ats; |
| 105 | } |
| 106 | |
| 107 | return selcommon(retval, SCARG(uap, nd), SCARG(uap, in), |
| 108 | SCARG(uap, ou), SCARG(uap, ex), ts, NULL); |
| 109 | } |
| 110 | |
| 111 | int |
| 112 | compat_50_sys_pselect(struct lwp *l, |
| 113 | const struct compat_50_sys_pselect_args *uap, register_t *retval) |
| 114 | { |
| 115 | /* { |
| 116 | syscallarg(int) nd; |
| 117 | syscallarg(fd_set *) in; |
| 118 | syscallarg(fd_set *) ou; |
| 119 | syscallarg(fd_set *) ex; |
| 120 | syscallarg(const struct timespec50 *) ts; |
| 121 | syscallarg(sigset_t *) mask; |
| 122 | } */ |
| 123 | struct timespec50 ats50; |
| 124 | struct timespec ats, *ts = NULL; |
| 125 | sigset_t amask, *mask = NULL; |
| 126 | int error; |
| 127 | |
| 128 | if (SCARG(uap, ts)) { |
| 129 | error = copyin(SCARG(uap, ts), &ats50, sizeof(ats50)); |
| 130 | if (error) |
| 131 | return error; |
| 132 | timespec50_to_timespec(&ats50, &ats); |
| 133 | ts = &ats; |
| 134 | } |
| 135 | if (SCARG(uap, mask) != NULL) { |
| 136 | error = copyin(SCARG(uap, mask), &amask, sizeof(amask)); |
| 137 | if (error) |
| 138 | return error; |
| 139 | mask = &amask; |
| 140 | } |
| 141 | |
| 142 | return selcommon(retval, SCARG(uap, nd), SCARG(uap, in), |
| 143 | SCARG(uap, ou), SCARG(uap, ex), ts, mask); |
| 144 | } |
| 145 | |
| 146 | int |
| 147 | compat_50_sys_pollts(struct lwp *l, const struct compat_50_sys_pollts_args *uap, |
| 148 | register_t *retval) |
| 149 | { |
| 150 | /* { |
| 151 | syscallarg(struct pollfd *) fds; |
| 152 | syscallarg(u_int) nfds; |
| 153 | syscallarg(const struct timespec50 *) ts; |
| 154 | syscallarg(const sigset_t *) mask; |
| 155 | } */ |
| 156 | struct timespec ats, *ts = NULL; |
| 157 | struct timespec50 ats50; |
| 158 | sigset_t amask, *mask = NULL; |
| 159 | int error; |
| 160 | |
| 161 | if (SCARG(uap, ts)) { |
| 162 | error = copyin(SCARG(uap, ts), &ats50, sizeof(ats50)); |
| 163 | if (error) |
| 164 | return error; |
| 165 | timespec50_to_timespec(&ats50, &ats); |
| 166 | ts = &ats; |
| 167 | } |
| 168 | if (SCARG(uap, mask)) { |
| 169 | error = copyin(SCARG(uap, mask), &amask, sizeof(amask)); |
| 170 | if (error) |
| 171 | return error; |
| 172 | mask = &amask; |
| 173 | } |
| 174 | |
| 175 | return pollcommon(retval, SCARG(uap, fds), SCARG(uap, nfds), ts, mask); |
| 176 | } |
| 177 | |