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("$FreeBSD$");
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
53 static int
54 linux_convert_l_sigevent(struct l_sigevent *l_sig, struct sigevent *sig)
55 {
56
57 CP(*l_sig, *sig, sigev_notify);
58 switch (l_sig->sigev_notify) {
59 case L_SIGEV_SIGNAL:
60 if (!LINUX_SIG_VALID(l_sig->sigev_signo))
61 return (EINVAL);
62 sig->sigev_notify = SIGEV_SIGNAL;
63 sig->sigev_signo = linux_to_bsd_signal(l_sig->sigev_signo);
64 PTRIN_CP(*l_sig, *sig, sigev_value.sival_ptr);
65 break;
66 case L_SIGEV_NONE:
67 sig->sigev_notify = SIGEV_NONE;
68 break;
69 case L_SIGEV_THREAD:
70 #if 0
71 /* Seems to not be used anywhere (anymore)? */
72 sig->sigev_notify = SIGEV_THREAD;
73 return (ENOSYS);
74 #else
75 return (EINVAL);
76 #endif
77 case L_SIGEV_THREAD_ID:
78 if (!LINUX_SIG_VALID(l_sig->sigev_signo))
79 return (EINVAL);
80 sig->sigev_notify = SIGEV_THREAD_ID;
81 CP2(*l_sig, *sig, _l_sigev_un._tid, sigev_notify_thread_id);
82 sig->sigev_signo = linux_to_bsd_signal(l_sig->sigev_signo);
83 PTRIN_CP(*l_sig, *sig, sigev_value.sival_ptr);
84 break;
85 default:
86 return (EINVAL);
87 }
88 return (0);
89 }
90
91 int
92 linux_timer_create(struct thread *td, struct linux_timer_create_args *uap)
93 {
94 struct l_sigevent l_ev;
95 struct sigevent ev, *evp;
96 clockid_t nwhich;
97 int error, id;
98
99 if (uap->evp == NULL) {
100 evp = NULL;
101 } else {
102 error = copyin(uap->evp, &l_ev, sizeof(l_ev));
103 if (error != 0)
104 return (error);
105 error = linux_convert_l_sigevent(&l_ev, &ev);
106 if (error != 0)
107 return (error);
108 evp = &ev;
109 }
110 error = linux_to_native_clockid(&nwhich, uap->clock_id);
111 if (error != 0)
112 return (error);
113 error = kern_ktimer_create(td, nwhich, evp, &id, -1);
114 if (error == 0) {
115 error = copyout(&id, uap->timerid, sizeof(int));
116 if (error != 0)
117 kern_ktimer_delete(td, id);
118 }
119 return (error);
120 }
121
122 int
123 linux_timer_settime(struct thread *td, struct linux_timer_settime_args *uap)
124 {
125 struct l_itimerspec l_val, l_oval;
126 struct itimerspec val, oval, *ovalp;
127 int error;
128
129 error = copyin(uap->new, &l_val, sizeof(l_val));
130 if (error != 0)
131 return (error);
132 ITS_CP(l_val, val);
133 ovalp = uap->old != NULL ? &oval : NULL;
134 error = kern_ktimer_settime(td, uap->timerid, uap->flags, &val, ovalp);
135 if (error == 0 && uap->old != NULL) {
136 ITS_CP(oval, l_oval);
137 error = copyout(&l_oval, uap->old, sizeof(l_oval));
138 }
139 return (error);
140 }
141
142 int
143 linux_timer_gettime(struct thread *td, struct linux_timer_gettime_args *uap)
144 {
145 struct l_itimerspec l_val;
146 struct itimerspec val;
147 int error;
148
149 error = kern_ktimer_gettime(td, uap->timerid, &val);
150 if (error == 0) {
151 ITS_CP(val, l_val);
152 error = copyout(&l_val, uap->setting, sizeof(l_val));
153 }
154 return (error);
155 }
156
157 int
158 linux_timer_getoverrun(struct thread *td, struct linux_timer_getoverrun_args *uap)
159 {
160
161 return (kern_ktimer_getoverrun(td, uap->timerid));
162 }
163
164 int
165 linux_timer_delete(struct thread *td, struct linux_timer_delete_args *uap)
166 {
167
168 return (kern_ktimer_delete(td, uap->timerid));
169 }
Cache object: dfd2e73d684391a8b719aa988ffad55e
|