1 /* $NetBSD: linux32_wait.c,v 1.8 2008/04/24 18:39:23 ad 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 1.8 2008/04/24 18:39:23 ad 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/linux_syscallargs.h> 65 66 #include <compat/linux32/common/linux32_types.h> 67 #include <compat/linux32/common/linux32_signal.h> 68 #include <compat/linux32/common/linux32_machdep.h> 69 #include <compat/linux32/common/linux32_sysctl.h> 70 #include <compat/linux32/common/linux32_socketcall.h> 71 #include <compat/linux32/linux32_syscallargs.h> 72 73 int 74 linux32_sys_waitpid(struct lwp *l, const struct linux32_sys_waitpid_args *uap, register_t *retval) 75 { 76 /* { 77 syscallarg(int) pid; 78 syscallarg(netbsd32_intp) status; 79 syscallarg(int) options; 80 } */ 81 struct linux32_sys_wait4_args ua; 82 83 SCARG(&ua, pid) = SCARG(uap, pid); 84 SCARG(&ua, status) = SCARG(uap, status); 85 SCARG(&ua, options) = SCARG(uap, options); 86 NETBSD32PTR32(SCARG(&ua, rusage), NULL); 87 88 return linux32_sys_wait4(l, &ua, retval); 89 } 90 91 int 92 linux32_sys_wait4(struct lwp *l, const struct linux32_sys_wait4_args *uap, register_t *retval) 93 { 94 /* { 95 syscallarg(int) pid; 96 syscallarg(netbsd32_intp) status; 97 syscallarg(int) options; 98 syscallarg(netbsd32_rusagep_t) rusage; 99 } */ 100 int error, status, linux_options, options, was_zombie; 101 struct rusage ru; 102 struct netbsd32_rusage ru32; 103 proc_t *p; 104 int pid; 105 106 linux_options = SCARG(uap, options); 107 options = WOPTSCHECKED; 108 if (linux_options & ~(LINUX_WAIT4_KNOWNFLAGS)) 109 return EINVAL; 110 111 if (linux_options & LINUX_WAIT4_WNOHANG) 112 options |= WNOHANG; 113 if (linux_options & LINUX_WAIT4_WUNTRACED) 114 options |= WUNTRACED; 115 if (linux_options & LINUX_WAIT4_WALL) 116 options |= WALLSIG; 117 if (linux_options & LINUX_WAIT4_WCLONE) 118 options |= WALTSIG; 119 120 pid = SCARG(uap, pid); 121 error = do_sys_wait(l, &pid, &status, options, 122 SCARG_P32(uap, rusage) != NULL ? &ru : NULL, &was_zombie); 123 retval[0] = pid; 124 if (pid == 0) 125 return error; 126 127 p = curproc; 128 mutex_enter(p->p_lock); 129 sigdelset(&p->p_sigpend.sp_set, SIGCHLD); /* XXXAD ksiginfo leak */ 130 mutex_exit(p->p_lock); 131 132 if (SCARG_P32(uap, rusage) != NULL) { 133 netbsd32_from_rusage(&ru, &ru32); 134 error = copyout(&ru32, SCARG_P32(uap, rusage), sizeof(ru32)); 135 } 136 137 if (error == 0 && SCARG_P32(uap, status) != NULL) { 138 status = bsd_to_linux_wstat(status); 139 error = copyout(&status, SCARG_P32(uap, status), sizeof(status)); 140 } 141 142 return error; 143 } 144