1 /*-
2 * Copyright (c) 2014 Bjoern A. Zeeb
3 * All rights reserved.
4 *
5 * This software was developed by SRI International and the University of
6 * Cambridge Computer Laboratory under DARPA/AFRL contract FA8750-11-C-0249
7 * ("MRC2"), as part of the DARPA MRC research programme.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD: releng/10.2/sys/compat/linux/linux_timer.c 272020 2014-09-23 07:50:04Z bz $");
32
33 #include "opt_compat.h"
34
35 #include <sys/param.h>
36 #include <sys/errno.h>
37 #include <sys/signal.h>
38 #include <sys/syscallsubr.h>
39 #include <sys/systm.h>
40 #include <sys/time.h>
41 #include <sys/types.h>
42
43 #ifdef COMPAT_LINUX32
44 #include <machine/../linux32/linux.h>
45 #include <machine/../linux32/linux32_proto.h>
46 #else
47 #include <machine/../linux/linux.h>
48 #include <machine/../linux/linux_proto.h>
49 #endif
50 #include <compat/linux/linux_timer.h>
51
52 static int
53 linux_convert_l_clockid(clockid_t *clock_id)
54 {
55
56 switch (*clock_id) {
57 case LINUX_CLOCK_REALTIME:
58 *clock_id = CLOCK_REALTIME;
59 break;
60 case LINUX_CLOCK_MONOTONIC:
61 *clock_id = CLOCK_MONOTONIC;
62 break;
63 default:
64 return (EINVAL);
65 }
66
67 return (0);
68 }
69
70 static int
71 linux_convert_l_sigevent(struct l_sigevent *l_sig, struct sigevent *sig)
72 {
73
74 CP(*l_sig, *sig, sigev_notify);
75 switch (l_sig->sigev_notify) {
76 case L_SIGEV_SIGNAL:
77 sig->sigev_notify = SIGEV_SIGNAL;
78 CP(*l_sig, *sig, sigev_signo);
79 PTRIN_CP(*l_sig, *sig, sigev_value.sival_ptr);
80 break;
81 case L_SIGEV_NONE:
82 sig->sigev_notify = SIGEV_NONE;
83 break;
84 case L_SIGEV_THREAD:
85 #if 0
86 /* Seems to not be used anywhere (anymore)? */
87 sig->sigev_notify = SIGEV_THREAD;
88 return (ENOSYS);
89 #else
90 return (EINVAL);
91 #endif
92 case L_SIGEV_THREAD_ID:
93 sig->sigev_notify = SIGEV_THREAD_ID;
94 CP2(*l_sig, *sig, _l_sigev_un._tid, sigev_notify_thread_id);
95 CP(*l_sig, *sig, sigev_signo);
96 PTRIN_CP(*l_sig, *sig, sigev_value.sival_ptr);
97 break;
98 default:
99 return (EINVAL);
100 }
101 return (0);
102 }
103
104 int
105 linux_timer_create(struct thread *td, struct linux_timer_create_args *uap)
106 {
107 struct l_sigevent l_ev;
108 struct sigevent ev, *evp;
109 int error, id;
110
111 if (uap->evp == NULL) {
112 evp = NULL;
113 } else {
114 error = copyin(uap->evp, &l_ev, sizeof(l_ev));
115 if (error != 0)
116 return (error);
117 error = linux_convert_l_sigevent(&l_ev, &ev);
118 if (error != 0)
119 return (error);
120 evp = &ev;
121 }
122 error = linux_convert_l_clockid(&uap->clock_id);
123 if (error != 0)
124 return (error);
125 error = kern_ktimer_create(td, uap->clock_id, evp, &id, -1);
126 if (error == 0) {
127 error = copyout(&id, uap->timerid, sizeof(int));
128 if (error != 0)
129 kern_ktimer_delete(td, id);
130 }
131 return (error);
132 }
133
134 int
135 linux_timer_settime(struct thread *td, struct linux_timer_settime_args *uap)
136 {
137 struct l_itimerspec l_val, l_oval;
138 struct itimerspec val, oval, *ovalp;
139 int error;
140
141 error = copyin(uap->new, &l_val, sizeof(l_val));
142 if (error != 0)
143 return (error);
144 ITS_CP(l_val, val);
145 ovalp = uap->old != NULL ? &oval : NULL;
146 error = kern_ktimer_settime(td, uap->timerid, uap->flags, &val, ovalp);
147 if (error == 0 && uap->old != NULL) {
148 ITS_CP(oval, l_oval);
149 error = copyout(&l_oval, uap->old, sizeof(l_oval));
150 }
151 return (error);
152 }
153
154 int
155 linux_timer_gettime(struct thread *td, struct linux_timer_gettime_args *uap)
156 {
157 struct l_itimerspec l_val;
158 struct itimerspec val;
159 int error;
160
161 error = kern_ktimer_gettime(td, uap->timerid, &val);
162 if (error == 0) {
163 ITS_CP(val, l_val);
164 error = copyout(&l_val, uap->setting, sizeof(l_val));
165 }
166 return (error);
167 }
168
169 int
170 linux_timer_getoverrun(struct thread *td, struct linux_timer_getoverrun_args *uap)
171 {
172
173 return (kern_ktimer_getoverrun(td, uap->timerid));
174 }
175
176 int
177 linux_timer_delete(struct thread *td, struct linux_timer_delete_args *uap)
178 {
179
180 return (kern_ktimer_delete(td, uap->timerid));
181 }
182
Cache object: fabb54ffc913dab1b707941235d9637d
|