952 lines
21 KiB
C
952 lines
21 KiB
C
/* $NetBSD: osf1_misc.c,v 1.14 1998/05/20 16:34:29 chs Exp $ */
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/*
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* Copyright (c) 1994, 1995 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/namei.h>
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#include <sys/proc.h>
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#include <sys/file.h>
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#include <sys/stat.h>
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#include <sys/filedesc.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/mman.h>
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#include <sys/mount.h>
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#include <sys/signal.h>
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#include <sys/signalvar.h>
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#include <sys/reboot.h>
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#include <sys/syscallargs.h>
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#include <sys/exec.h>
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#include <sys/vnode.h>
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#include <sys/socketvar.h>
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#include <compat/osf1/osf1_syscall.h>
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#include <compat/osf1/osf1_syscallargs.h>
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#include <compat/osf1/osf1_util.h>
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#include <vm/vm.h>
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void cvtstat2osf1 __P((struct stat *, struct osf1_stat *));
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#ifdef SYSCALL_DEBUG
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extern int scdebug;
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#endif
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extern struct sysent osf1_sysent[];
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extern char *osf1_syscallnames[];
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extern void cpu_exec_ecoff_setregs __P((struct proc *, struct exec_package *,
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u_long));
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extern char sigcode[], esigcode[];
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const char osf1_emul_path[] = "/emul/osf1";
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struct emul emul_osf1 = {
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"osf1",
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NULL,
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sendsig,
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OSF1_SYS_syscall,
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OSF1_SYS_MAXSYSCALL,
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osf1_sysent,
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osf1_syscallnames,
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0,
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copyargs,
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cpu_exec_ecoff_setregs,
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sigcode,
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esigcode,
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};
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int
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osf1_sys_open(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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struct osf1_sys_open_args /* {
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syscallarg(char *) path;
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syscallarg(int) flags;
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syscallarg(int) mode;
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} */ *uap = v;
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struct sys_open_args /* {
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syscallarg(char *) path;
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syscallarg(int) flags;
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syscallarg(int) mode;
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} */ a;
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#ifdef SYSCALL_DEBUG
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char pnbuf[1024];
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if (scdebug &&
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copyinstr(SCARG(uap, path), pnbuf, sizeof pnbuf, NULL) == 0)
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printf("osf1_open: open: %s\n", pnbuf);
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#endif
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SCARG(&a, path) = SCARG(uap, path);
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SCARG(&a, flags) = SCARG(uap, flags); /* XXX translate */
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SCARG(&a, mode) = SCARG(uap, mode);
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return sys_open(p, &a, retval);
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}
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int
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osf1_sys_setsysinfo(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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#if 0
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struct osf1_setsysinfo_args /* {
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syscallarg(u_long) op;
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syscallarg(caddr_t) buffer;
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syscallarg(u_long) nbytes;
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syscallarg(caddr_t) arg;
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syscallarg(u_long) flag;
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} */ *uap = v;
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#endif
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return (0);
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}
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#define OSF1_RLIMIT_LASTCOMMON 5 /* last one that's common */
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#define OSF1_RLIMIT_NOFILE 6 /* OSF1's RLIMIT_NOFILE */
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#define OSF1_RLIMIT_NLIMITS 8 /* Number of OSF1 rlimits */
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int
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osf1_sys_getrlimit(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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struct osf1_sys_getrlimit_args /* {
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syscallarg(u_int) which;
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syscallarg(struct rlimit *) rlp;
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} */ *uap = v;
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struct sys_getrlimit_args /* {
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syscallarg(u_int) which;
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syscallarg(struct rlimit *) rlp;
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} */ a;
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if (SCARG(uap, which) >= OSF1_RLIMIT_NLIMITS)
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return (EINVAL);
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if (SCARG(uap, which) <= OSF1_RLIMIT_LASTCOMMON)
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SCARG(&a, which) = SCARG(uap, which);
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else if (SCARG(uap, which) == OSF1_RLIMIT_NOFILE)
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SCARG(&a, which) = RLIMIT_NOFILE;
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else
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return (0);
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SCARG(&a, rlp) = SCARG(uap, rlp);
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return sys_getrlimit(p, &a, retval);
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}
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int
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osf1_sys_setrlimit(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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struct osf1_sys_setrlimit_args /* {
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syscallarg(u_int) which;
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syscallarg(struct rlimit *) rlp;
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} */ *uap = v;
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struct sys_setrlimit_args /* {
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syscallarg(u_int) which;
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syscallarg(struct rlimit *) rlp;
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} */ a;
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if (SCARG(uap, which) >= OSF1_RLIMIT_NLIMITS)
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return (EINVAL);
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if (SCARG(uap, which) <= OSF1_RLIMIT_LASTCOMMON)
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SCARG(&a, which) = SCARG(uap, which);
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else if (SCARG(uap, which) == OSF1_RLIMIT_NOFILE)
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SCARG(&a, which) = RLIMIT_NOFILE;
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else
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return (0);
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SCARG(&a, rlp) = SCARG(uap, rlp);
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return sys_setrlimit(p, &a, retval);
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}
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#define OSF1_MAP_SHARED 0x001
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#define OSF1_MAP_PRIVATE 0x002
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#define OSF1_MAP_ANONYMOUS 0x010
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#define OSF1_MAP_FILE 0x000
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#define OSF1_MAP_TYPE 0x0f0
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#define OSF1_MAP_FIXED 0x100
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#define OSF1_MAP_HASSEMAPHORE 0x200
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#define OSF1_MAP_INHERIT 0x400
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#define OSF1_MAP_UNALIGNED 0x800
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int
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osf1_sys_mmap(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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struct osf1_sys_mmap_args /* {
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syscallarg(caddr_t) addr;
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syscallarg(size_t) len;
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syscallarg(int) prot;
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syscallarg(int) flags;
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syscallarg(int) fd;
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syscallarg(off_t) pos;
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} */ *uap = v;
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struct sys_mmap_args /* {
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syscallarg(caddr_t) addr;
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syscallarg(size_t) len;
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syscallarg(int) prot;
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syscallarg(int) flags;
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syscallarg(int) fd;
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syscallarg(long) pad;
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syscallarg(off_t) pos;
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} */ a;
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SCARG(&a, addr) = SCARG(uap, addr);
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SCARG(&a, len) = SCARG(uap, len);
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SCARG(&a, prot) = SCARG(uap, prot);
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SCARG(&a, fd) = SCARG(uap, fd);
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SCARG(&a, pad) = 0;
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SCARG(&a, pos) = SCARG(uap, pos);
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SCARG(&a, flags) = 0;
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if (SCARG(uap, flags) & OSF1_MAP_SHARED)
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SCARG(&a, flags) |= MAP_SHARED;
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if (SCARG(uap, flags) & OSF1_MAP_PRIVATE)
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SCARG(&a, flags) |= MAP_PRIVATE;
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switch (SCARG(uap, flags) & OSF1_MAP_TYPE) {
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case OSF1_MAP_ANONYMOUS:
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SCARG(&a, flags) |= MAP_ANON;
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break;
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case OSF1_MAP_FILE:
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SCARG(&a, flags) |= MAP_FILE;
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break;
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default:
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return (EINVAL);
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}
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if (SCARG(uap, flags) & OSF1_MAP_FIXED)
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SCARG(&a, flags) |= MAP_FIXED;
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if (SCARG(uap, flags) & OSF1_MAP_HASSEMAPHORE)
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SCARG(&a, flags) |= MAP_HASSEMAPHORE;
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if (SCARG(uap, flags) & OSF1_MAP_INHERIT)
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SCARG(&a, flags) |= MAP_INHERIT;
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if (SCARG(uap, flags) & OSF1_MAP_UNALIGNED)
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return (EINVAL);
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return sys_mmap(p, &a, retval);
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}
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int
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osf1_sys_usleep_thread(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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struct osf1_sys_usleep_thread_args /* {
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syscallarg(struct timeval *) sleep;
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syscallarg(struct timeval *) slept;
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} */ *uap = v;
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struct timeval tv, endtv;
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u_long ticks;
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int error, s;
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if ((error = copyin(SCARG(uap, sleep), &tv, sizeof tv)))
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return (error);
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ticks = ((u_long)tv.tv_sec * 1000000 + tv.tv_usec) / tick;
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s = splclock();
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tv = time;
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splx(s);
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tsleep(p, PUSER|PCATCH, "OSF/1", ticks); /* XXX */
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if (SCARG(uap, slept) != NULL) {
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s = splclock();
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timersub(&time, &tv, &endtv);
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splx(s);
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if (tv.tv_sec < 0 || tv.tv_usec < 0)
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tv.tv_sec = tv.tv_usec = 0;
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error = copyout(&endtv, SCARG(uap, slept), sizeof endtv);
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}
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return (error);
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}
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struct osf1_stat {
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int32_t st_dev;
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u_int32_t st_ino;
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u_int32_t st_mode;
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u_int16_t st_nlink;
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u_int32_t st_uid;
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u_int32_t st_gid;
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int32_t st_rdev;
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u_int64_t st_size;
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int32_t st_atime_sec;
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int32_t st_spare1;
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int32_t st_mtime_sec;
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int32_t st_spare2;
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int32_t st_ctime_sec;
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int32_t st_spare3;
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u_int32_t st_blksize;
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int32_t st_blocks;
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u_int32_t st_flags;
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u_int32_t st_gen;
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};
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/*
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* Get file status; this version follows links.
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*/
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/* ARGSUSED */
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int
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osf1_sys_stat(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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register struct osf1_sys_stat_args /* {
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syscallarg(char *) path;
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syscallarg(struct osf1_stat *) ub;
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} */ *uap = v;
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struct stat sb;
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struct osf1_stat osb;
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int error;
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struct nameidata nd;
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NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE,
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SCARG(uap, path), p);
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if ((error = namei(&nd)))
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return (error);
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error = vn_stat(nd.ni_vp, &sb, p);
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vput(nd.ni_vp);
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if (error)
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return (error);
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cvtstat2osf1(&sb, &osb);
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error = copyout((caddr_t)&osb, (caddr_t)SCARG(uap, ub), sizeof (osb));
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return (error);
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}
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/*
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* Get file status; this version does not follow links.
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*/
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/* ARGSUSED */
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int
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osf1_sys_lstat(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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register struct osf1_sys_lstat_args /* {
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syscallarg(char *) path;
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syscallarg(struct osf1_stat *) ub;
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} */ *uap = v;
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struct stat sb;
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struct osf1_stat osb;
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int error;
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struct nameidata nd;
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NDINIT(&nd, LOOKUP, NOFOLLOW | LOCKLEAF, UIO_USERSPACE,
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SCARG(uap, path), p);
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if ((error = namei(&nd)))
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return (error);
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error = vn_stat(nd.ni_vp, &sb, p);
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vput(nd.ni_vp);
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if (error)
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return (error);
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cvtstat2osf1(&sb, &osb);
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error = copyout((caddr_t)&osb, (caddr_t)SCARG(uap, ub), sizeof (osb));
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return (error);
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}
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/*
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* Return status information about a file descriptor.
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*/
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int
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osf1_sys_fstat(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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register struct osf1_sys_fstat_args /* {
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syscallarg(int) fd;
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syscallarg(struct osf1_stat *) sb;
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} */ *uap = v;
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register struct filedesc *fdp = p->p_fd;
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register struct file *fp;
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struct stat ub;
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struct osf1_stat oub;
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int error;
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if ((unsigned)SCARG(uap, fd) >= fdp->fd_nfiles ||
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(fp = fdp->fd_ofiles[SCARG(uap, fd)]) == NULL)
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return (EBADF);
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switch (fp->f_type) {
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case DTYPE_VNODE:
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error = vn_stat((struct vnode *)fp->f_data, &ub, p);
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break;
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case DTYPE_SOCKET:
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error = soo_stat((struct socket *)fp->f_data, &ub);
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break;
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default:
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panic("ofstat");
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/*NOTREACHED*/
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}
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cvtstat2osf1(&ub, &oub);
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if (error == 0)
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error = copyout((caddr_t)&oub, (caddr_t)SCARG(uap, sb),
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sizeof (oub));
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return (error);
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}
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#define bsd2osf_dev(dev) (major(dev) << 20 | minor(dev))
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#define osf2bsd_dev(dev) makedev((dev >> 20) & 0xfff, dev & 0xfffff)
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/*
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* Convert from a stat structure to an osf1 stat structure.
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*/
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void
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cvtstat2osf1(st, ost)
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struct stat *st;
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struct osf1_stat *ost;
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{
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ost->st_dev = bsd2osf_dev(st->st_dev);
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ost->st_ino = st->st_ino;
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ost->st_mode = st->st_mode;
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ost->st_nlink = st->st_nlink;
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ost->st_uid = st->st_uid == -2 ? (u_int16_t) -2 : st->st_uid;
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ost->st_gid = st->st_gid == -2 ? (u_int16_t) -2 : st->st_gid;
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ost->st_rdev = bsd2osf_dev(st->st_rdev);
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ost->st_size = st->st_size;
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ost->st_atime_sec = st->st_atime;
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ost->st_spare1 = 0;
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ost->st_mtime_sec = st->st_mtime;
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ost->st_spare2 = 0;
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ost->st_ctime_sec = st->st_ctime;
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ost->st_spare3 = 0;
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ost->st_blksize = st->st_blksize;
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ost->st_blocks = st->st_blocks;
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ost->st_flags = st->st_flags;
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ost->st_gen = st->st_gen;
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}
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int
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osf1_sys_mknod(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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struct osf1_sys_mknod_args /* {
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syscallarg(char *) path;
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syscallarg(int) mode;
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syscallarg(int) dev;
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} */ *uap = v;
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struct sys_mknod_args a;
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SCARG(&a, path) = SCARG(uap, path);
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SCARG(&a, mode) = SCARG(uap, mode);
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SCARG(&a, dev) = osf2bsd_dev(SCARG(uap, dev));
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return sys_mknod(p, &a, retval);
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}
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#define OSF1_F_DUPFD 0
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#define OSF1_F_GETFD 1
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#define OSF1_F_SETFD 2
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#define OSF1_F_GETFL 3
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#define OSF1_F_SETFL 4
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#define OSF1_FAPPEND 0x00008 /* XXX OSF1_O_APPEND */
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#define OSF1_FNONBLOCK 0x00004 /* XXX OSF1_O_NONBLOCK */
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#define OSF1_FASYNC 0x00040
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#define OSF1_FSYNC 0x04000 /* XXX OSF1_O_SYNC */
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int
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osf1_sys_fcntl(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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struct osf1_sys_fcntl_args /* {
|
|
syscallarg(int) fd;
|
|
syscallarg(int) cmd;
|
|
syscallarg(void *) arg;
|
|
} */ *uap = v;
|
|
struct sys_fcntl_args a;
|
|
long tmp;
|
|
int error;
|
|
|
|
SCARG(&a, fd) = SCARG(uap, fd);
|
|
|
|
switch (SCARG(uap, cmd)) {
|
|
case OSF1_F_DUPFD:
|
|
SCARG(&a, cmd) = F_DUPFD;
|
|
SCARG(&a, arg) = SCARG(uap, arg);
|
|
break;
|
|
|
|
case OSF1_F_GETFD:
|
|
SCARG(&a, cmd) = F_GETFD;
|
|
SCARG(&a, arg) = SCARG(uap, arg);
|
|
break;
|
|
|
|
case OSF1_F_SETFD:
|
|
SCARG(&a, cmd) = F_SETFD;
|
|
SCARG(&a, arg) = SCARG(uap, arg);
|
|
break;
|
|
|
|
case OSF1_F_GETFL:
|
|
SCARG(&a, cmd) = F_GETFL;
|
|
SCARG(&a, arg) = SCARG(uap, arg); /* ignored */
|
|
break;
|
|
|
|
case OSF1_F_SETFL:
|
|
SCARG(&a, cmd) = F_SETFL;
|
|
tmp = 0;
|
|
if ((long)SCARG(uap, arg) & OSF1_FAPPEND)
|
|
tmp |= FAPPEND;
|
|
if ((long)SCARG(uap, arg) & OSF1_FNONBLOCK)
|
|
tmp |= FNONBLOCK;
|
|
if ((long)SCARG(uap, arg) & OSF1_FASYNC)
|
|
tmp |= FASYNC;
|
|
if ((long)SCARG(uap, arg) & OSF1_FSYNC)
|
|
tmp |= FFSYNC;
|
|
SCARG(&a, arg) = (void *)tmp;
|
|
break;
|
|
|
|
default: /* XXX other cases */
|
|
return (EINVAL);
|
|
}
|
|
|
|
error = sys_fcntl(p, &a, retval);
|
|
|
|
if (error)
|
|
return error;
|
|
|
|
switch (SCARG(uap, cmd)) {
|
|
case OSF1_F_GETFL:
|
|
/* XXX */
|
|
break;
|
|
}
|
|
|
|
return error;
|
|
}
|
|
|
|
int
|
|
osf1_sys_socket(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
register struct osf1_sys_socket_args /* {
|
|
syscallarg(int) domain;
|
|
syscallarg(int) type;
|
|
syscallarg(int) protocol;
|
|
} */ *uap = v;
|
|
struct sys_socket_args a;
|
|
|
|
if (SCARG(uap, type) > AF_LINK)
|
|
return (EINVAL); /* XXX After AF_LINK, divergence. */
|
|
|
|
SCARG(&a, domain) = SCARG(uap, domain);
|
|
SCARG(&a, type) = SCARG(uap, type);
|
|
SCARG(&a, protocol) = SCARG(uap, protocol);
|
|
|
|
return sys_socket(p, &a, retval);
|
|
}
|
|
|
|
int
|
|
osf1_sys_sendto(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
register struct osf1_sys_sendto_args /* {
|
|
syscallarg(int) s;
|
|
syscallarg(caddr_t) buf;
|
|
syscallarg(size_t) len;
|
|
syscallarg(int) flags;
|
|
syscallarg(caddr_t) to;
|
|
syscallarg(int) tolen;
|
|
} */ *uap = v;
|
|
struct sys_sendto_args a;
|
|
|
|
if (SCARG(uap, flags) & ~0x7f) /* unsupported flags */
|
|
return (EINVAL);
|
|
|
|
SCARG(&a, s) = SCARG(uap, s);
|
|
SCARG(&a, buf) = SCARG(uap, buf);
|
|
SCARG(&a, len) = SCARG(uap, len);
|
|
SCARG(&a, flags) = SCARG(uap, flags);
|
|
SCARG(&a, to) = SCARG(uap, to);
|
|
SCARG(&a, tolen) = SCARG(uap, tolen);
|
|
|
|
return sys_sendto(p, &a, retval);
|
|
}
|
|
|
|
#define OSF1_RB_ASKNAME 0x001
|
|
#define OSF1_RB_SINGLE 0x002
|
|
#define OSF1_RB_NOSYNC 0x004
|
|
#define OSF1_RB_HALT 0x008
|
|
#define OSF1_RB_INITNAME 0x010
|
|
#define OSF1_RB_DFLTROOT 0x020
|
|
#define OSF1_RB_ALTBOOT 0x040
|
|
#define OSF1_RB_UNIPROC 0x080
|
|
#define OSF1_RB_ALLFLAGS 0x0ff /* all of the above */
|
|
|
|
int
|
|
osf1_sys_reboot(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct osf1_sys_reboot_args /* {
|
|
syscallarg(int) opt;
|
|
} */ *uap = v;
|
|
struct sys_reboot_args a;
|
|
|
|
if (SCARG(uap, opt) & ~OSF1_RB_ALLFLAGS &&
|
|
SCARG(uap, opt) & (OSF1_RB_ALTBOOT|OSF1_RB_UNIPROC))
|
|
return (EINVAL);
|
|
|
|
SCARG(&a, opt) = 0;
|
|
SCARG(&a, bootstr) = NULL;
|
|
if (SCARG(uap, opt) & OSF1_RB_ASKNAME)
|
|
SCARG(&a, opt) |= RB_ASKNAME;
|
|
if (SCARG(uap, opt) & OSF1_RB_SINGLE)
|
|
SCARG(&a, opt) |= RB_SINGLE;
|
|
if (SCARG(uap, opt) & OSF1_RB_NOSYNC)
|
|
SCARG(&a, opt) |= RB_NOSYNC;
|
|
if (SCARG(uap, opt) & OSF1_RB_HALT)
|
|
SCARG(&a, opt) |= RB_HALT;
|
|
if (SCARG(uap, opt) & OSF1_RB_INITNAME)
|
|
SCARG(&a, opt) |= RB_INITNAME;
|
|
if (SCARG(uap, opt) & OSF1_RB_DFLTROOT)
|
|
SCARG(&a, opt) |= RB_DFLTROOT;
|
|
|
|
return sys_reboot(p, &a, retval);
|
|
}
|
|
|
|
int
|
|
osf1_sys_lseek(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct osf1_sys_lseek_args /* {
|
|
syscallarg(int) fd;
|
|
syscallarg(off_t) offset;
|
|
syscallarg(int) whence;
|
|
} */ *uap = v;
|
|
struct sys_lseek_args a;
|
|
|
|
SCARG(&a, fd) = SCARG(uap, fd);
|
|
SCARG(&a, pad) = 0;
|
|
SCARG(&a, offset) = SCARG(uap, offset);
|
|
SCARG(&a, whence) = SCARG(uap, whence);
|
|
|
|
return sys_lseek(p, &a, retval);
|
|
}
|
|
|
|
/*
|
|
* OSF/1 defines _POSIX_SAVED_IDS, which means that our normal
|
|
* setuid() won't work.
|
|
*
|
|
* Instead, by P1003.1b-1993, setuid() is supposed to work like:
|
|
* If the process has appropriate [super-user] priviledges, the
|
|
* setuid() function sets the real user ID, effective user
|
|
* ID, and the saved set-user-ID to uid.
|
|
* If the process does not have appropriate priviledges, but uid
|
|
* is equal to the real user ID or the saved set-user-ID, the
|
|
* setuid() function sets the effective user ID to uid; the
|
|
* real user ID and saved set-user-ID remain unchanged by
|
|
* this function call.
|
|
*/
|
|
int
|
|
osf1_sys_setuid(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct osf1_sys_setuid_args /* {
|
|
syscallargs(uid_t) uid;
|
|
} */ *uap = v;
|
|
register struct pcred *pc = p->p_cred;
|
|
uid_t uid = SCARG(uap, uid);
|
|
int error;
|
|
|
|
if ((error = suser(pc->pc_ucred, &p->p_acflag)) != 0 &&
|
|
uid != pc->p_ruid && uid != pc->p_svuid)
|
|
return (error);
|
|
|
|
pc->pc_ucred = crcopy(pc->pc_ucred);
|
|
pc->pc_ucred->cr_uid = uid;
|
|
if (error == 0) {
|
|
(void)chgproccnt(pc->p_ruid, -1);
|
|
(void)chgproccnt(uid, 1);
|
|
pc->p_ruid = uid;
|
|
pc->p_svuid = uid;
|
|
}
|
|
p->p_flag |= P_SUGID;
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* OSF/1 defines _POSIX_SAVED_IDS, which means that our normal
|
|
* setgid() won't work.
|
|
*
|
|
* If you change "uid" to "gid" in the discussion, above, about
|
|
* setuid(), you'll get a correct description of setgid().
|
|
*/
|
|
int
|
|
osf1_sys_setgid(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct osf1_sys_setgid_args /* {
|
|
syscallargs(gid_t) gid;
|
|
} */ *uap = v;
|
|
register struct pcred *pc = p->p_cred;
|
|
gid_t gid = SCARG(uap, gid);
|
|
int error;
|
|
|
|
if ((error = suser(pc->pc_ucred, &p->p_acflag)) != 0 &&
|
|
gid != pc->p_rgid && gid != pc->p_svgid)
|
|
return (error);
|
|
|
|
pc->pc_ucred = crcopy(pc->pc_ucred);
|
|
pc->pc_ucred->cr_gid = gid;
|
|
if (error == 0) {
|
|
pc->p_rgid = gid;
|
|
pc->p_svgid = gid;
|
|
}
|
|
p->p_flag |= P_SUGID;
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* The structures end up being the same... but we can't be sure that
|
|
* the other word of our iov_len is zero!
|
|
*/
|
|
struct osf1_iovec {
|
|
char *iov_base;
|
|
int iov_len;
|
|
};
|
|
|
|
int
|
|
osf1_sys_readv(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct osf1_sys_readv_args /* {
|
|
syscallarg(int) fd;
|
|
syscallarg(struct osf1_iovec *) iovp;
|
|
syscallarg(u_int) iovcnt;
|
|
} */ *uap = v;
|
|
struct sys_readv_args /* {
|
|
syscallarg(int) fd;
|
|
syscallarg(struct iovec *) iovp;
|
|
syscallarg(u_int) iovcnt;
|
|
} */ a;
|
|
struct osf1_iovec *oio;
|
|
struct iovec *nio;
|
|
caddr_t sg = stackgap_init(p->p_emul);
|
|
int error, osize, nsize, i;
|
|
|
|
if (SCARG(uap, iovcnt) > (STACKGAPLEN / sizeof (struct iovec)))
|
|
return (EINVAL);
|
|
|
|
osize = SCARG(uap, iovcnt) * sizeof (struct osf1_iovec);
|
|
nsize = SCARG(uap, iovcnt) * sizeof (struct iovec);
|
|
|
|
oio = malloc(osize, M_TEMP, M_WAITOK);
|
|
nio = malloc(nsize, M_TEMP, M_WAITOK);
|
|
|
|
error = 0;
|
|
if ((error = copyin(SCARG(uap, iovp), oio, osize)))
|
|
goto punt;
|
|
for (i = 0; i < SCARG(uap, iovcnt); i++) {
|
|
nio[i].iov_base = oio[i].iov_base;
|
|
nio[i].iov_len = oio[i].iov_len;
|
|
}
|
|
|
|
SCARG(&a, fd) = SCARG(uap, fd);
|
|
SCARG(&a, iovp) = stackgap_alloc(&sg, nsize);
|
|
SCARG(&a, iovcnt) = SCARG(uap, iovcnt);
|
|
|
|
if ((error = copyout(nio, (caddr_t)SCARG(&a, iovp), nsize)))
|
|
goto punt;
|
|
error = sys_readv(p, &a, retval);
|
|
|
|
punt:
|
|
free(oio, M_TEMP);
|
|
free(nio, M_TEMP);
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
osf1_sys_writev(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct osf1_sys_writev_args /* {
|
|
syscallarg(int) fd;
|
|
syscallarg(struct osf1_iovec *) iovp;
|
|
syscallarg(u_int) iovcnt;
|
|
} */ *uap = v;
|
|
struct sys_writev_args /* {
|
|
syscallarg(int) fd;
|
|
syscallarg(struct iovec *) iovp;
|
|
syscallarg(u_int) iovcnt;
|
|
} */ a;
|
|
struct osf1_iovec *oio;
|
|
struct iovec *nio;
|
|
caddr_t sg = stackgap_init(p->p_emul);
|
|
int error, osize, nsize, i;
|
|
|
|
if (SCARG(uap, iovcnt) > (STACKGAPLEN / sizeof (struct iovec)))
|
|
return (EINVAL);
|
|
|
|
osize = SCARG(uap, iovcnt) * sizeof (struct osf1_iovec);
|
|
nsize = SCARG(uap, iovcnt) * sizeof (struct iovec);
|
|
|
|
oio = malloc(osize, M_TEMP, M_WAITOK);
|
|
nio = malloc(nsize, M_TEMP, M_WAITOK);
|
|
|
|
error = 0;
|
|
if ((error = copyin(SCARG(uap, iovp), oio, osize)))
|
|
goto punt;
|
|
for (i = 0; i < SCARG(uap, iovcnt); i++) {
|
|
nio[i].iov_base = oio[i].iov_base;
|
|
nio[i].iov_len = oio[i].iov_len;
|
|
}
|
|
|
|
SCARG(&a, fd) = SCARG(uap, fd);
|
|
SCARG(&a, iovp) = stackgap_alloc(&sg, nsize);
|
|
SCARG(&a, iovcnt) = SCARG(uap, iovcnt);
|
|
|
|
if ((error = copyout(nio, (caddr_t)SCARG(&a, iovp), nsize)))
|
|
goto punt;
|
|
error = sys_writev(p, &a, retval);
|
|
|
|
punt:
|
|
free(oio, M_TEMP);
|
|
free(nio, M_TEMP);
|
|
return (error);
|
|
}
|
|
|
|
/* More of the stupid off_t padding! */
|
|
int
|
|
osf1_sys_truncate(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct osf1_sys_truncate_args /* {
|
|
syscallarg(char *) path;
|
|
syscallarg(off_t) length;
|
|
} */ *uap = v;
|
|
struct sys_truncate_args a;
|
|
|
|
SCARG(&a, path) = SCARG(uap, path);
|
|
SCARG(&a, pad) = 0;
|
|
SCARG(&a, length) = SCARG(uap, length);
|
|
|
|
return sys_truncate(p, &a, retval);
|
|
}
|
|
|
|
int
|
|
osf1_sys_ftruncate(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct osf1_sys_ftruncate_args /* {
|
|
syscallarg(int) fd;
|
|
syscallarg(off_t) length;
|
|
} */ *uap = v;
|
|
struct sys_ftruncate_args a;
|
|
|
|
SCARG(&a, fd) = SCARG(uap, fd);
|
|
SCARG(&a, pad) = 0;
|
|
SCARG(&a, length) = SCARG(uap, length);
|
|
|
|
return sys_ftruncate(p, &a, retval);
|
|
}
|
|
|
|
int
|
|
osf1_sys_getrusage(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
|
|
/* XXX */
|
|
return EINVAL;
|
|
}
|
|
|
|
int
|
|
osf1_sys_madvise(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
|
|
/* XXX */
|
|
return EINVAL;
|
|
}
|
|
|
|
int
|
|
osf1_sys_execve(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct osf1_sys_execve_args /* {
|
|
syscallarg(char *) path;
|
|
syscallarg(char **) argv;
|
|
syscallarg(char **) envp;
|
|
} */ *uap = v;
|
|
struct sys_execve_args ap;
|
|
caddr_t sg;
|
|
|
|
sg = stackgap_init(p->p_emul);
|
|
OSF1_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
|
|
|
|
SCARG(&ap, path) = SCARG(uap, path);
|
|
SCARG(&ap, argp) = SCARG(uap, argp);
|
|
SCARG(&ap, envp) = SCARG(uap, envp);
|
|
|
|
return sys_execve(p, &ap, retval);
|
|
}
|