1 | /* $NetBSD: linux32_wait.c,v 1.12 2016/11/10 17:00:51 christos Exp $ */ |
2 | |
3 | /*- |
4 | * Copyright (c) 2006 Emmanuel Dreyfus, all rights reserved. |
5 | * |
6 | * Redistribution and use in source and binary forms, with or without |
7 | * modification, are permitted provided that the following conditions |
8 | * are met: |
9 | * 1. Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * 2. Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
14 | * 3. All advertising materials mentioning features or use of this software |
15 | * must display the following acknowledgement: |
16 | * This product includes software developed by Emmanuel Dreyfus |
17 | * 4. The name of the author may not be used to endorse or promote |
18 | * products derived from this software without specific prior written |
19 | * permission. |
20 | * |
21 | * THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR AND CONTRIBUTORS ``AS IS'' |
22 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
23 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
24 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS |
25 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
26 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
27 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
28 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
29 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
30 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
31 | * POSSIBILITY OF SUCH DAMAGE. |
32 | */ |
33 | |
34 | #include <sys/cdefs.h> |
35 | |
36 | __KERNEL_RCSID(0, "$NetBSD: linux32_wait.c,v 1.12 2016/11/10 17:00:51 christos Exp $" ); |
37 | |
38 | #include <sys/types.h> |
39 | #include <sys/param.h> |
40 | #include <sys/fstypes.h> |
41 | #include <sys/signal.h> |
42 | #include <sys/dirent.h> |
43 | #include <sys/kernel.h> |
44 | #include <sys/fcntl.h> |
45 | #include <sys/select.h> |
46 | #include <sys/proc.h> |
47 | #include <sys/ucred.h> |
48 | #include <sys/swap.h> |
49 | #include <sys/wait.h> |
50 | |
51 | #include <machine/types.h> |
52 | |
53 | #include <sys/syscallargs.h> |
54 | |
55 | #include <compat/netbsd32/netbsd32.h> |
56 | #include <compat/netbsd32/netbsd32_conv.h> |
57 | #include <compat/netbsd32/netbsd32_syscallargs.h> |
58 | |
59 | #include <compat/linux/common/linux_types.h> |
60 | #include <compat/linux/common/linux_signal.h> |
61 | #include <compat/linux/common/linux_machdep.h> |
62 | #include <compat/linux/common/linux_misc.h> |
63 | #include <compat/linux/common/linux_oldolduname.h> |
64 | #include <compat/linux/common/linux_ipc.h> |
65 | #include <compat/linux/common/linux_sem.h> |
66 | #include <compat/linux/linux_syscallargs.h> |
67 | |
68 | #include <compat/linux32/common/linux32_types.h> |
69 | #include <compat/linux32/common/linux32_signal.h> |
70 | #include <compat/linux32/common/linux32_machdep.h> |
71 | #include <compat/linux32/common/linux32_sysctl.h> |
72 | #include <compat/linux32/common/linux32_socketcall.h> |
73 | #include <compat/linux32/linux32_syscallargs.h> |
74 | |
75 | int |
76 | linux32_sys_waitpid(struct lwp *l, const struct linux32_sys_waitpid_args *uap, register_t *retval) |
77 | { |
78 | /* { |
79 | syscallarg(int) pid; |
80 | syscallarg(netbsd32_intp) status; |
81 | syscallarg(int) options; |
82 | } */ |
83 | struct linux32_sys_wait4_args ua; |
84 | |
85 | SCARG(&ua, pid) = SCARG(uap, pid); |
86 | SCARG(&ua, status) = SCARG(uap, status); |
87 | SCARG(&ua, options) = SCARG(uap, options); |
88 | NETBSD32PTR32(SCARG(&ua, rusage), NULL); |
89 | |
90 | return linux32_sys_wait4(l, &ua, retval); |
91 | } |
92 | |
93 | int |
94 | linux32_sys_wait4(struct lwp *l, const struct linux32_sys_wait4_args *uap, register_t *retval) |
95 | { |
96 | /* { |
97 | syscallarg(int) pid; |
98 | syscallarg(netbsd32_intp) status; |
99 | syscallarg(int) options; |
100 | syscallarg(netbsd32_rusage50p_t) rusage; |
101 | } */ |
102 | int error, status, linux_options, options, pid; |
103 | struct netbsd32_rusage50 ru32; |
104 | struct rusage ru; |
105 | proc_t *p; |
106 | |
107 | linux_options = SCARG(uap, options); |
108 | if (linux_options & ~(LINUX_WAIT4_KNOWNFLAGS)) |
109 | return EINVAL; |
110 | |
111 | options = 0; |
112 | if (linux_options & LINUX_WAIT4_WNOHANG) |
113 | options |= WNOHANG; |
114 | if (linux_options & LINUX_WAIT4_WUNTRACED) |
115 | options |= WUNTRACED; |
116 | if (linux_options & LINUX_WAIT4_WALL) |
117 | options |= WALLSIG; |
118 | if (linux_options & LINUX_WAIT4_WCLONE) |
119 | options |= WALTSIG; |
120 | |
121 | pid = SCARG(uap, pid); |
122 | error = do_sys_wait(&pid, &status, options, |
123 | SCARG_P32(uap, rusage) != NULL ? &ru : NULL); |
124 | retval[0] = pid; |
125 | if (pid == 0) |
126 | return error; |
127 | |
128 | p = curproc; |
129 | mutex_enter(p->p_lock); |
130 | sigdelset(&p->p_sigpend.sp_set, SIGCHLD); /* XXXAD ksiginfo leak */ |
131 | mutex_exit(p->p_lock); |
132 | |
133 | if (SCARG_P32(uap, rusage) != NULL) { |
134 | netbsd32_from_rusage50(&ru, &ru32); |
135 | error = copyout(&ru32, SCARG_P32(uap, rusage), sizeof(ru32)); |
136 | } |
137 | |
138 | if (error == 0 && SCARG_P32(uap, status) != NULL) { |
139 | status = bsd_to_linux_wstat(status); |
140 | error = copyout(&status, SCARG_P32(uap, status), sizeof(status)); |
141 | } |
142 | |
143 | return error; |
144 | } |
145 | |