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
31 #include <sys/param.h>
32 #include <sys/proc.h>
33 #include <sys/signal.h>
34 #include <sys/syscallsubr.h>
35 #include <sys/time.h>
36
37 #ifdef COMPAT_LINUX32
38 #include <machine/../linux32/linux.h>
39 #include <machine/../linux32/linux32_proto.h>
40 #else
41 #include <machine/../linux/linux.h>
42 #include <machine/../linux/linux_proto.h>
43 #endif
44 #include <compat/linux/linux_time.h>
45
46 int
linux_convert_l_sigevent(const struct l_sigevent * l_sig,struct sigevent * sig)47 linux_convert_l_sigevent(const struct l_sigevent *l_sig, struct sigevent *sig)
48 {
49
50 CP(*l_sig, *sig, sigev_notify);
51 switch (l_sig->sigev_notify) {
52 case L_SIGEV_SIGNAL:
53 if (!LINUX_SIG_VALID(l_sig->sigev_signo))
54 return (EINVAL);
55 sig->sigev_notify = SIGEV_SIGNAL;
56 sig->sigev_signo = linux_to_bsd_signal(l_sig->sigev_signo);
57 PTRIN_CP(*l_sig, *sig, sigev_value.sival_ptr);
58 break;
59 case L_SIGEV_NONE:
60 sig->sigev_notify = SIGEV_NONE;
61 break;
62 case L_SIGEV_THREAD:
63 #if 0
64 /* Seems to not be used anywhere (anymore)? */
65 sig->sigev_notify = SIGEV_THREAD;
66 return (ENOSYS);
67 #else
68 return (EINVAL);
69 #endif
70 case L_SIGEV_THREAD_ID:
71 if (!LINUX_SIG_VALID(l_sig->sigev_signo))
72 return (EINVAL);
73 sig->sigev_notify = SIGEV_THREAD_ID;
74 CP2(*l_sig, *sig, _l_sigev_un._tid, sigev_notify_thread_id);
75 sig->sigev_signo = linux_to_bsd_signal(l_sig->sigev_signo);
76 PTRIN_CP(*l_sig, *sig, sigev_value.sival_ptr);
77 break;
78 default:
79 return (EINVAL);
80 }
81 return (0);
82 }
83
84 int
linux_timer_create(struct thread * td,struct linux_timer_create_args * uap)85 linux_timer_create(struct thread *td, struct linux_timer_create_args *uap)
86 {
87 struct l_sigevent l_ev;
88 struct sigevent ev, *evp;
89 clockid_t nwhich;
90 int error, id;
91
92 if (uap->evp == NULL) {
93 evp = NULL;
94 } else {
95 error = copyin(uap->evp, &l_ev, sizeof(l_ev));
96 if (error != 0)
97 return (error);
98 error = linux_convert_l_sigevent(&l_ev, &ev);
99 if (error != 0)
100 return (error);
101 evp = &ev;
102 }
103 error = linux_to_native_clockid(&nwhich, uap->clock_id);
104 if (error != 0)
105 return (error);
106 error = kern_ktimer_create(td, nwhich, evp, &id, -1);
107 if (error == 0) {
108 error = copyout(&id, uap->timerid, sizeof(int));
109 if (error != 0)
110 kern_ktimer_delete(td, id);
111 }
112 return (error);
113 }
114
115 int
linux_timer_settime(struct thread * td,struct linux_timer_settime_args * uap)116 linux_timer_settime(struct thread *td, struct linux_timer_settime_args *uap)
117 {
118 struct l_itimerspec l_val, l_oval;
119 struct itimerspec val, oval, *ovalp;
120 int flags, error;
121
122 error = copyin(uap->new, &l_val, sizeof(l_val));
123 if (error != 0)
124 return (error);
125 error = linux_to_native_itimerspec(&val, &l_val);
126 if (error != 0)
127 return (error);
128 ovalp = uap->old != NULL ? &oval : NULL;
129 error = linux_to_native_timerflags(&flags, uap->flags);
130 if (error != 0)
131 return (error);
132 error = kern_ktimer_settime(td, uap->timerid, flags, &val, ovalp);
133 if (error == 0 && uap->old != NULL) {
134 error = native_to_linux_itimerspec(&l_val, &val);
135 if (error == 0)
136 error = copyout(&l_oval, uap->old, sizeof(l_oval));
137 }
138 return (error);
139 }
140
141 #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
142 int
linux_timer_settime64(struct thread * td,struct linux_timer_settime64_args * uap)143 linux_timer_settime64(struct thread *td, struct linux_timer_settime64_args *uap)
144 {
145 struct l_itimerspec64 l_val, l_oval;
146 struct itimerspec val, oval, *ovalp;
147 int flags, error;
148
149 error = copyin(uap->new, &l_val, sizeof(l_val));
150 if (error != 0)
151 return (error);
152 error = linux_to_native_itimerspec64(&val, &l_val);
153 if (error != 0)
154 return (error);
155 ovalp = uap->old != NULL ? &oval : NULL;
156 error = linux_to_native_timerflags(&flags, uap->flags);
157 if (error != 0)
158 return (error);
159 error = kern_ktimer_settime(td, uap->timerid, flags, &val, ovalp);
160 if (error == 0 && uap->old != NULL) {
161 error = native_to_linux_itimerspec64(&l_val, &val);
162 if (error == 0)
163 error = copyout(&l_oval, uap->old, sizeof(l_oval));
164 }
165 return (error);
166 }
167 #endif
168
169 int
linux_timer_gettime(struct thread * td,struct linux_timer_gettime_args * uap)170 linux_timer_gettime(struct thread *td, struct linux_timer_gettime_args *uap)
171 {
172 struct l_itimerspec l_val;
173 struct itimerspec val;
174 int error;
175
176 error = kern_ktimer_gettime(td, uap->timerid, &val);
177 if (error == 0)
178 error = native_to_linux_itimerspec(&l_val, &val);
179 if (error == 0)
180 error = copyout(&l_val, uap->setting, sizeof(l_val));
181 return (error);
182 }
183
184 #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
185 int
linux_timer_gettime64(struct thread * td,struct linux_timer_gettime64_args * uap)186 linux_timer_gettime64(struct thread *td, struct linux_timer_gettime64_args *uap)
187 {
188 struct l_itimerspec64 l_val;
189 struct itimerspec val;
190 int error;
191
192 error = kern_ktimer_gettime(td, uap->timerid, &val);
193 if (error == 0)
194 error = native_to_linux_itimerspec64(&l_val, &val);
195 if (error == 0)
196 error = copyout(&l_val, uap->setting, sizeof(l_val));
197 return (error);
198 }
199 #endif
200
201 int
linux_timer_getoverrun(struct thread * td,struct linux_timer_getoverrun_args * uap)202 linux_timer_getoverrun(struct thread *td, struct linux_timer_getoverrun_args *uap)
203 {
204
205 return (kern_ktimer_getoverrun(td, uap->timerid));
206 }
207
208 int
linux_timer_delete(struct thread * td,struct linux_timer_delete_args * uap)209 linux_timer_delete(struct thread *td, struct linux_timer_delete_args *uap)
210 {
211
212 return (kern_ktimer_delete(td, uap->timerid));
213 }
214