587 lines
15 KiB
C
587 lines
15 KiB
C
/* $NetBSD: irix_syssgi.c,v 1.36 2003/02/28 02:12:55 cgd Exp $ */
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/*-
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* Copyright (c) 2001-2002 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Emmanuel Dreyfus.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: irix_syssgi.c,v 1.36 2003/02/28 02:12:55 cgd Exp $");
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#if defined(_KERNEL_OPT)
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#include "opt_ddb.h"
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#endif
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#ifndef ELFSIZE
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#define ELFSIZE 32
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#endif
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/* round up and down to page boundaries. Borrowed from sys/kern/exec_elf32.c */
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#define ELF_ROUND(a, b) (((a) + (b) - 1) & ~((b) - 1))
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#define ELF_TRUNC(a, b) ((a) & ~((b) - 1))
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/systm.h>
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#include <sys/filedesc.h>
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#include <sys/buf.h>
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#include <sys/vnode.h>
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#include <sys/file.h>
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#include <sys/resourcevar.h>
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#include <sys/sysctl.h>
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#include <sys/exec.h>
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#include <sys/exec_elf.h>
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#include <sys/mount.h>
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#include <sys/sa.h>
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#include <sys/syscallargs.h>
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#include <uvm/uvm_extern.h>
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#include <compat/common/compat_util.h>
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#include <compat/svr4/svr4_types.h>
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#include <compat/irix/irix_types.h>
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#include <compat/irix/irix_signal.h>
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#include <compat/irix/irix_exec.h>
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#include <compat/irix/irix_prctl.h>
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#include <compat/irix/irix_syscall.h>
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#include <compat/irix/irix_syscallargs.h>
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#include <compat/irix/irix_syssgi.h>
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/* In sys/kern/exec_elf32.c */
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void ELFNAME(load_psection)(struct exec_vmcmd_set *, struct vnode *,
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const Elf_Phdr *, Elf_Addr *, u_long *, int *, int);
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static int irix_syssgi_mapelf __P((int, Elf_Phdr *, int,
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struct proc *, register_t *));
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static int irix_syssgi_sysconf __P((int name, struct lwp *, register_t *));
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static int irix_syssgi_pathconf __P((char *, int, struct lwp *, register_t *));
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int
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irix_sys_syssgi(l, v, retval)
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struct lwp *l;
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void *v;
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register_t *retval;
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{
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struct irix_sys_syssgi_args /* {
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syscallarg(int) request;
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syscallarg(void *) arg1;
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syscallarg(void *) arg2;
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syscallarg(void *) arg3;
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syscallarg(void *) arg4;
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syscallarg(void *) arg5;
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} */ *uap = v;
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struct proc *p = l->l_proc;
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int request = SCARG(uap, request);
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void *arg1, *arg2, *arg3;
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#ifdef DEBUG_IRIX
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printf("irix_sys_syssgi(): request = %d\n", request);
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#endif
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switch(request) {
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case IRIX_SGI_SYSID: /* Get HostID */
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*retval = (register_t)hostid;
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break;
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case IRIX_SGI_SETGROUPS: { /* setgroups(2) */
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struct sys_setgroups_args cup;
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SCARG(&cup, gidsetsize) = (int)SCARG(uap, arg1);
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SCARG(&cup, gidset) = (gid_t *)SCARG(uap, arg2);
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return (sys_setgroups(l, &cup, retval));
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break;
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}
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case IRIX_SGI_GETGROUPS: { /* getgroups(2) */
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struct sys_getgroups_args cup;
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SCARG(&cup, gidsetsize) = (int)SCARG(uap, arg1);
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SCARG(&cup, gidset) = (gid_t *)SCARG(uap, arg2);
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return (sys_getgroups(l, &cup, retval));
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break;
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}
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case IRIX_SGI_SETSID: /* Set session ID: setsid(2) */
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return (sys_setsid(l, NULL, retval));
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break;
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case IRIX_SGI_GETSID: { /* Get session ID: getsid(2) */
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struct sys_getsid_args cup;
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SCARG(&cup, pid) = (pid_t)SCARG(uap, arg1);
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return (sys_getsid(l, &cup, retval));
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break;
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}
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case IRIX_SGI_GETPGID: {/* Get parent process GID: getpgid(2) */
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struct sys_getpgid_args cup;
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SCARG(&cup, pid) = (pid_t)SCARG(uap, arg1);
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return (sys_getpgid(l, &cup, retval));
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break;
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}
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case IRIX_SGI_SETPGID: {/* Get parent process GID: setpgid(2) */
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struct sys_setpgid_args cup;
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SCARG(&cup, pid) = (pid_t)SCARG(uap, arg1);
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SCARG(&cup, pgid) = (pid_t)SCARG(uap, arg2);
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return (sys_setpgid(l, &cup, retval));
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break;
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}
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case IRIX_SGI_PATHCONF: /* Get file limits: pathconf(3) */
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return irix_syssgi_pathconf((char *)SCARG(uap, arg1),
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(int)SCARG(uap, arg2), l, retval);
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break;
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case IRIX_SGI_RUSAGE: { /* BSD getrusage(2) */
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struct sys_getrusage_args cup;
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SCARG(&cup, who) = (int)SCARG(uap, arg1);
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SCARG(&cup, rusage) = (struct rusage *)SCARG(uap, arg2);
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return sys_getrusage(l, &cup, retval);
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break;
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}
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case IRIX_SGI_NUM_MODULES: /* <sys/systeminfo.h> get_num_modules() */
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*retval = 1;
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return 0;
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break;
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case IRIX_SGI_MODULE_INFO: { /* <sys/systeminfo.h> get_module_info() */
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int module_num = (int)SCARG(uap, arg1);
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struct irix_module_info_s *imip = SCARG(uap, arg2);
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int mss = (int)SCARG(uap, arg3);
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struct irix_module_info_s imi;
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char *idx;
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if (module_num != 0)
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return EINVAL;
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imi.serial_num = (u_int64_t)hostid;
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imi.mod_num = 0;
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(void)snprintf(imi.serial_str, IRIX_MAX_SERIAL_SIZE,
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"0800%08x", (u_int32_t)hostid);
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/* Convert to upper case */
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for (idx = imi.serial_str; *idx; idx++)
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if (*idx >= 'a' && *idx <= 'f')
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*idx += ('A' - 'a');
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/* Don't copyout irrelevant data on user request */
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if (mss > sizeof(struct irix_module_info_s))
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mss = sizeof(struct irix_module_info_s);
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return copyout(&imi, imip, mss);
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break;
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}
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case IRIX_SGI_RDNAME: { /* Read Processes' name */
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struct proc *tp;
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arg1 = SCARG(uap, arg1); /* PID of the process */
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arg2 = SCARG(uap, arg2); /* Address of user buffer */
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arg3 = SCARG(uap, arg3); /* Length of user buffer */
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if (!uvm_useracc((caddr_t)arg2, (size_t)arg2, B_WRITE))
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return EACCES;
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tp = pfind((pid_t)arg1);
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if (tp == NULL || \
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tp->p_psstr == NULL || \
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tp->p_psstr->ps_argvstr == NULL || \
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tp->p_psstr->ps_argvstr[0] == NULL)
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return 0;
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*retval = (register_t)copyout(tp->p_psstr->ps_argvstr[0],
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(void *)arg2, (size_t)arg3);
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break;
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}
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case IRIX_SGI_TUNE: /* Tune system variables */
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case IRIX_SGI_IDBG: /* Kernel debugging */
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case IRIX_SGI_INVENT: /* Get system inventory */
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case IRIX_SGI_SETLED: /* Turn on/off LEDs */
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case IRIX_SGI_SETNVRAM: /* Sets a NVRAM variable value */
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case IRIX_SGI_GETNVRAM: /* Gets a NVRAM variable value */
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return EINVAL;
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break;
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case IRIX_SGI_ELFMAP: /* Maps an ELF image */
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arg1 = SCARG(uap, arg1); /* file descriptor */
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arg2 = SCARG(uap, arg2); /* ptr to ELF program header array */
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arg3 = SCARG(uap, arg3); /* array's length */
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return irix_syssgi_mapelf((int)arg1, (Elf_Phdr *)arg2,
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(int)arg3, p, retval);
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break;
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case IRIX_SGI_USE_FP_BCOPY: /* bcopy and bzero can use FPU or not */
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/*
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* Our kernel does not use FPU, hence we do nothing.
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*/
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break;
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case IRIX_SGI_TOSSTSAVE: /* Kill saved pregions */
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/*
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* Our kernel does not seem to save such "pregions",
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* therefore we do not have to do anything.
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*/
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break;
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case IRIX_SGI_SYSCONF: /* POSIX sysconf */
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arg1 = SCARG(uap, arg1); /* system variable name */
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return irix_syssgi_sysconf((int)arg1, l, retval);
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break;
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case IRIX_SGI_SATCTL: /* control audit stream */
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case IRIX_SGI_RXEV_GET: /* Trusted IRIX call */
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/* Undocumented (?) and unimplemented */
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return 0;
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break;
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case IRIX_SGI_FDHI: /* getdtablehi(3): get higher open fd + 1 */
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*retval = (register_t)(p->p_fd->fd_lastfile + 1);
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return 0;
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break;
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default:
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printf("Warning: call to unimplemented syssgi() command %d\n",
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request);
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return EINVAL;
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break;
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}
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return 0;
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}
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static int
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irix_syssgi_mapelf(fd, ph, count, p, retval)
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int fd;
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Elf_Phdr *ph;
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int count;
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struct proc *p;
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register_t *retval;
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{
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Elf_Phdr *kph;
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Elf_Phdr *pht;
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int error = 0;
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int i,j;
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int prot;
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int flags;
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u_long size;
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Elf_Addr uaddr;
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Elf_Addr reloc_offset;
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struct file *fp;
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struct filedesc *fdp;
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struct exec_vmcmd_set vcset;
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struct exec_vmcmd *base_vcp = NULL;
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struct vnode *vp;
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struct vm_map_entry *ret;
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struct exec_vmcmd *vcp;
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int need_relocation;
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vcset.evs_cnt = 0;
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vcset.evs_used = 0;
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/* Check that the program header array is readable by the process */
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if (!uvm_useracc((caddr_t)ph, sizeof(Elf_Phdr) * count, B_READ))
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return EACCES;
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kph = (Elf_Phdr *)malloc(sizeof(Elf_Phdr) * count,
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M_TEMP, M_WAITOK);
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error = copyin(ph, kph, sizeof(Elf_Phdr) * count);
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if (error)
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goto bad;
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pht = kph;
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need_relocation = 0;
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for (i = 0; i < count; i++) {
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/* Check that each ELF sections is loadable */
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if (pht->p_type != PT_LOAD) {
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error = ENOEXEC;
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goto bad;
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}
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/*
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* Check that the section load addresses are increasing
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* with the section in the program header array. We do
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* not support any other situation.
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*/
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if (pht->p_vaddr < kph->p_vaddr) {
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#ifdef DEBUG_IRIX
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printf("mapelf: unsupported psection order\n");
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#endif
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error = EINVAL;
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goto bad;
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}
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/*
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* Check that the default load addresses are free.
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* If not, we will have to perform a relocation
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*/
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ret = uvm_map_findspace(&p->p_vmspace->vm_map,
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pht->p_vaddr, pht->p_memsz, (vaddr_t *)&uaddr,
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NULL, 0, 0, UVM_FLAG_FIXED);
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if (ret == NULL)
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need_relocation = 1;
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pht++;
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}
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/*
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* Perform a relocation
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*/
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if (need_relocation) {
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/*
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* compute the size needed by the section union. This
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* assumes that the section load addresses are increasing.
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* (And also that the sections are not overlapping)
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*/
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pht--;
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size = ELF_ROUND((pht->p_vaddr + pht->p_memsz), pht->p_align) -
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ELF_TRUNC(kph->p_vaddr, kph->p_align);
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/* Find a free place for the sections */
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ret = uvm_map_findspace(&p->p_vmspace->vm_map,
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IRIX_MAPELF_RELOCATE, size, (vaddr_t *)&uaddr,
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NULL, 0, kph->p_align, 0);
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if (ret == NULL) {
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error = ENOMEM;
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goto bad;
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}
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/*
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* Relocate the sections, all with the same offset.
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*/
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reloc_offset = uaddr - kph->p_vaddr;
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pht = kph;
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for (i = 0; i < count; i++) {
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#ifdef DEBUG_IRIX
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printf("mapelf: relocating section %d from %p to %p\n",
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i, (void *)pht->p_vaddr,
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(void *)(pht->p_vaddr + reloc_offset));
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#endif
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pht->p_vaddr += reloc_offset;
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pht++;
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}
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}
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/* Find the file's vnode */
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fdp = p->p_fd;
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fp = fd_getfile(fdp, fd);
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if (fp == NULL) {
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error = EBADF;
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goto bad;
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}
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FILE_USE(fp);
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vp = (struct vnode *)fp->f_data;
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error = vn_marktext(vp);
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if (error)
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goto bad_unuse;
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/*
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* Load the sections
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*/
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pht = kph;
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for (i = 0; i < count; i++) {
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#ifdef DEBUG_IRIX
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printf("mapelf: loading section %d (len 0x%08lx) at %p\n",
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i, (long)pht->p_memsz, (void *)pht->p_vaddr);
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#endif
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/* Build the vmcmds for loading the section */
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kill_vmcmds(&vcset);
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uaddr = pht->p_vaddr;
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size = 0;
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prot = 0;
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flags = VMCMD_BASE;
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ELFNAME(load_psection)(&vcset, vp, pht, &uaddr,
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&size, &prot, flags);
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/* Execute the vmcmds */
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for (j = 0; j < vcset.evs_used && !error; j++) {
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vcp = &vcset.evs_cmds[j];
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if (vcp->ev_flags & VMCMD_RELATIVE) {
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if (base_vcp == NULL)
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panic("irix_syssgi_mapelf(): bad vmcmd base");
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vcp->ev_addr += base_vcp->ev_addr;
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}
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IRIX_VM_SYNC(p, error = (*vcp->ev_proc)(p, vcp));
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if (error)
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goto bad_unuse;
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}
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pht++;
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}
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*retval = (register_t)kph->p_vaddr;
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bad_unuse:
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FILE_UNUSE(fp, p);
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bad:
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free(kph, M_TEMP);
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return error;
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}
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static int
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irix_syssgi_sysconf(name, l, retval)
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int name;
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struct lwp *l;
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register_t *retval;
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{
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struct proc *p = l->l_proc;
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int error = 0;
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int mib[2], value;
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int len = sizeof(value);
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struct sys___sysctl_args cup;
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caddr_t sg = stackgap_init(p, 0);
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switch (name) {
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case IRIX_SC_ARG_MAX:
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mib[0] = CTL_KERN;
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mib[1] = KERN_ARGMAX;
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break;
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case IRIX_SC_CHILD_MAX:
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*retval = (register_t)p->p_rlimit[RLIMIT_NPROC].rlim_cur;
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return 0;
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break;
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case IRIX_SC_CLK_TCK:
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*retval = hz;
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return 0;
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break;
|
|
case IRIX_SC_NGROUPS_MAX:
|
|
mib[0] = CTL_KERN;
|
|
mib[1] = KERN_NGROUPS;
|
|
break;
|
|
case IRIX_SC_OPEN_MAX:
|
|
*retval = (register_t)p->p_rlimit[RLIMIT_NOFILE].rlim_cur;
|
|
return 0;
|
|
break;
|
|
case IRIX_SC_JOB_CONTROL:
|
|
mib[0] = CTL_KERN;
|
|
mib[1] = KERN_JOB_CONTROL;
|
|
break;
|
|
case IRIX_SC_SAVED_IDS:
|
|
mib[0] = CTL_KERN;
|
|
mib[1] = KERN_SAVED_IDS;
|
|
break;
|
|
case IRIX_SC_IP_SECOPTS:/* IP security options */
|
|
/* Trusted IRIX capabilities are unsupported */
|
|
case IRIX_SC_ACL: /* ACcess Lists */
|
|
case IRIX_SC_AUDIT: /* Audit */
|
|
case IRIX_SC_INF: /* Information labels */
|
|
case IRIX_SC_MAC: /* Mandatory Access Control */
|
|
case IRIX_SC_CAP: /* Capabilities */
|
|
*retval = 0;
|
|
return 0;
|
|
break;
|
|
case IRIX_SC_PAGESIZE:
|
|
mib[0] = CTL_HW;
|
|
mib[1] = HW_PAGESIZE;
|
|
break;
|
|
|
|
case IRIX_SC_PASS_MAX:
|
|
case IRIX_SC_VERSION:
|
|
default:
|
|
printf("Warning: syssgi(SYSCONF) unsupported variable %d\n",
|
|
name);
|
|
return EINVAL;
|
|
break;
|
|
}
|
|
|
|
SCARG(&cup, name) = stackgap_alloc(p, &sg, sizeof(mib));
|
|
if ((error = copyout(&mib, SCARG(&cup, name), sizeof(mib))) != 0)
|
|
return error;
|
|
SCARG(&cup, namelen) = sizeof(mib);
|
|
SCARG(&cup, old) = stackgap_alloc(p, &sg, sizeof(value));
|
|
if ((copyout(&value, SCARG(&cup, old), sizeof(value))) != 0)
|
|
return error;
|
|
SCARG(&cup, oldlenp) = stackgap_alloc(p, &sg, sizeof(len));
|
|
if ((copyout(&len, SCARG(&cup, oldlenp), sizeof(len))) != 0)
|
|
return error;
|
|
SCARG(&cup, new) = NULL;
|
|
SCARG(&cup, newlen) = 0;
|
|
|
|
return sys___sysctl(l, &cup, retval);
|
|
}
|
|
|
|
static int
|
|
irix_syssgi_pathconf(path, name, l, retval)
|
|
char *path;
|
|
int name;
|
|
struct lwp *l;
|
|
register_t *retval;
|
|
{
|
|
struct sys_pathconf_args cup;
|
|
int bname;
|
|
|
|
switch (name) {
|
|
case IRIX_PC_LINK_MAX:
|
|
case IRIX_PC_MAX_CANON:
|
|
case IRIX_PC_MAX_INPUT:
|
|
case IRIX_PC_NAME_MAX:
|
|
case IRIX_PC_PATH_MAX:
|
|
case IRIX_PC_PIPE_BUF:
|
|
case IRIX_PC_CHOWN_RESTRICTED:
|
|
case IRIX_PC_NO_TRUNC:
|
|
case IRIX_PC_VDISABLE:
|
|
case IRIX_PC_SYNC_IO:
|
|
bname = name;
|
|
break;
|
|
case IRIX_PC_FILESIZEBITS:
|
|
bname = _PC_FILESIZEBITS;
|
|
break;
|
|
case IRIX_PC_PRIO_IO:
|
|
case IRIX_PC_ASYNC_IO:
|
|
case IRIX_PC_ABI_ASYNC_IO:
|
|
case IRIX_PC_ABI_AIO_XFER_MAX:
|
|
default:
|
|
printf("Warning: unimplemented IRIX pathconf() command %d\n",
|
|
name);
|
|
*retval = 0;
|
|
return 0;
|
|
break;
|
|
}
|
|
SCARG(&cup, path) = path;
|
|
SCARG(&cup, name) = bname;
|
|
return sys_pathconf(l, &cup, retval);
|
|
}
|