c52007c2cc
Changed vnodep -> vp for consistency with the rest of the kernel, and changed iparams -> imgp for brevity. kern_exec.c: Explicitly initialized some additional parts of the image_params struct to avoid bzeroing it. Rewrote the set-id code to reduce the number of logical tests. The rewrite exposed a mostly benign bug in the algorithm: traced set-id images would get ktracing disabled even if the set-id didn't happen for other reasons.
368 lines
11 KiB
C
368 lines
11 KiB
C
/*-
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* Copyright (c) 1994-1995 Søren Schmidt
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* All rights reserved.
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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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* in this position and unchanged.
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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. The name of the author may not be used to endorse or promote products
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* derived from this software withough specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id: linux_sysent.c,v 1.1 1995/06/25 17:32:43 sos Exp $
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*/
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#include <i386/linux/linux.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/sysent.h>
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#include <sys/imgact.h>
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#include <sys/errno.h>
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#include <sys/signal.h>
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extern int access();
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extern int acct();
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extern int linux_adjtimex();
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extern int linux_alarm();
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extern int linux_bdflush();
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extern int linux_break();
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extern int linux_brk();
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extern int chdir();
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extern int chmod();
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extern int chown();
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extern int chroot();
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extern int linux_clone();
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extern int close();
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extern int linux_creat();
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extern int linux_create_module();
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extern int linux_delete_module();
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extern int dup();
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extern int dup2();
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extern int execve();
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extern int exit();
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extern int fchdir();
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extern int fchmod();
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extern int fchown();
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extern int linux_fcntl();
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extern int linux_fork();
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extern int linux_fstat();
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extern int linux_fstatfs();
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extern int fsync();
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extern int linux_ftime();
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extern int oftruncate();
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extern int linux_get_kernel_syms();
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extern int getegid();
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extern int geteuid();
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extern int getgid();
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extern int getgroups();
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extern int getitimer();
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extern int linux_getpgid();
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extern int getpgrp();
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extern int getpid();
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extern int getppid();
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extern int getpriority();
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extern int ogetrlimit();
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extern int getrusage();
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extern int gettimeofday();
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extern int getuid();
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extern int linux_gtty();
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extern int linux_idle();
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extern int linux_init_module();
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extern int linux_ioctl();
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extern int linux_ioperm();
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extern int linux_iopl();
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extern int linux_ipc();
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extern int linux_kill();
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extern int link();
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extern int linux_lock();
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extern int linux_lseek();
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extern int ostat();
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extern int mkdir();
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extern int mknod();
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extern int linux_mmap();
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extern int linux_modify_ldt();
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extern int linux_mount();
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extern int mprotect();
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extern int linux_mpx();
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extern int munmap();
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extern int linux_newfstat();
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extern int linux_newlstat();
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extern int linux_newstat();
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extern int linux_newuname();
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extern int linux_nice();
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extern int linux_olduname();
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extern int linux_open();
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extern int linux_pause();
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extern int linux_phys();
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extern int linux_pipe();
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extern int linux_prof();
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extern int profil();
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extern int linux_ptrace();
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extern int linux_quotactl();
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extern int read();
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extern int linux_readdir();
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extern int readlink();
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extern int reboot();
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extern int rename();
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extern int rmdir();
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extern int linux_select();
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extern int setdomainname();
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extern int setgid();
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extern int setgroups();
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extern int osethostname();
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extern int setitimer();
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extern int setpgid();
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extern int setpriority();
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extern int setregid();
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extern int setreuid();
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extern int osetrlimit();
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extern int setsid();
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extern int settimeofday();
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extern int setuid();
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extern int sigreturn();
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extern int linux_setup();
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extern int linux_sigaction();
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extern int linux_siggetmask();
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extern int linux_signal();
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extern int linux_sigpending();
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extern int linux_sigprocmask();
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extern int linux_sigreturn();
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extern int linux_sigsetmask();
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extern int linux_sigsuspend();
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extern int linux_socketcall();
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extern int linux_stat();
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extern int linux_statfs();
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extern int linux_stime();
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extern int linux_stty();
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extern int linux_swapoff();
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extern int swapon();
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extern int symlink();
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extern int sync();
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extern int linux_sysinfo();
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extern int linux_syslog();
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extern int linux_time();
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extern int linux_times();
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extern int otruncate();
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extern int linux_ulimit();
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extern int umask();
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extern int linux_umount();
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extern int linux_uname();
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extern int unlink();
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extern int linux_uselib();
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extern int linux_ustat();
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extern int linux_utime();
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extern int linux_vhangup();
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extern int linux_vm86();
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extern int linux_wait4();
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extern int linux_waitpid();
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extern int write();
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static struct sysent linux_sysent[] = {
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0, linux_setup, /* 0 */
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1, exit, /* 1 */
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0, linux_fork, /* 2 */
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3, read, /* 3 */
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3, write, /* 4 */
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3, linux_open, /* 5 */
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1, close, /* 6 */
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3, linux_waitpid, /* 7 */
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2, linux_creat, /* 8 */
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2, link, /* 9 */
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1, unlink, /* 10 */
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3, execve, /* 11 */
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1, chdir, /* 12 */
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1, linux_time, /* 13 */
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3, mknod, /* 14 */
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2, chmod, /* 15 */
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3, chown, /* 16 */
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1, linux_break, /* 17 */
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2, linux_stat, /* 18 */
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3, linux_lseek, /* 19 */
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0, getpid, /* 20 */
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5, linux_mount, /* 21 */
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1, linux_umount, /* 22 */
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1, setuid, /* 23 */
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0, getuid, /* 24 */
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1, linux_stime, /* 25 */
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4, linux_ptrace, /* 26 */
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1, linux_alarm, /* 27 */
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2, linux_fstat, /* 28 */
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0, linux_pause, /* 29 */
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2, linux_utime, /* 30 */
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0, linux_stty, /* 31 */
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0, linux_gtty, /* 32 */
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2, access, /* 33 */
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1, linux_nice, /* 34 */
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0, linux_ftime, /* 35 */
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0, sync, /* 36 */
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2, linux_kill, /* 37 */
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2, rename, /* 38 */
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2, mkdir, /* 39 */
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1, rmdir, /* 40 */
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1, dup, /* 41 */
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1, linux_pipe, /* 42 */
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1, linux_times, /* 43 */
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0, linux_prof, /* 44 */
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1, linux_brk, /* 45 */
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1, setgid, /* 46 */
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0, getgid, /* 47 */
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2, linux_signal, /* 48 */
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0, geteuid, /* 49 */
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0, getegid, /* 50 */
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0, acct, /* 51 */
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0, linux_phys, /* 52 */
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0, linux_lock, /* 53 */
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3, linux_ioctl, /* 54 */
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3, linux_fcntl, /* 55 */
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0, linux_mpx, /* 56 */
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2, setpgid, /* 57 */
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0, linux_ulimit, /* 58 */
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1, linux_olduname, /* 59 */
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1, umask, /* 60 */
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1, chroot, /* 61 */
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2, linux_ustat, /* 62 */
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2, dup2, /* 63 */
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0, getppid, /* 64 */
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0, getpgrp, /* 65 */
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0, setsid, /* 66 */
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3, linux_sigaction, /* 67 */
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0, linux_siggetmask, /* 68 */
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1, linux_sigsetmask, /* 69 */
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2, setreuid, /* 70 */
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2, setregid, /* 71 */
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1, linux_sigsuspend, /* 72 */
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1, linux_sigpending, /* 73 */
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2, osethostname, /* 74 */
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2, osetrlimit, /* 75 */
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2, ogetrlimit, /* 76 */
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2, getrusage, /* 77 */
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2, gettimeofday, /* 78 */
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2, settimeofday, /* 79 */
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2, getgroups, /* 80 */
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2, setgroups, /* 81 */
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1, linux_select, /* 82 */
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2, symlink, /* 83 */
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2, ostat, /* 84 */
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3, readlink, /* 85 */
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1, linux_uselib, /* 86 */
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1, swapon, /* 87 */
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3, reboot, /* 88 */
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3, linux_readdir, /* 89 */
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1, linux_mmap, /* 90 */
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2, munmap, /* 91 */
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2, otruncate, /* 92 */
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2, oftruncate, /* 93 */
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2, fchmod, /* 94 */
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3, fchown, /* 95 */
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2, getpriority, /* 96 */
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3, setpriority, /* 97 */
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0, profil, /* 98 */
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2, linux_statfs, /* 99 */
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2, linux_fstatfs, /* 100 */
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3, linux_ioperm, /* 101 */
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2, linux_socketcall, /* 102 */
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3, linux_syslog, /* 103 */
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3, setitimer, /* 104 */
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2, getitimer, /* 105 */
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2, linux_newstat, /* 106 */
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2, linux_newlstat, /* 107 */
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2, linux_newfstat, /* 108 */
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2, linux_uname, /* 109 */
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1, linux_iopl, /* 110 */
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0, linux_vhangup, /* 111 */
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0, linux_idle, /* 112 */
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1, linux_vm86, /* 113 */
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4, linux_wait4, /* 114 */
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1, linux_swapoff, /* 115 */
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1, linux_sysinfo, /* 116 */
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4, linux_ipc, /* 117 */
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1, fsync, /* 118 */
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1, linux_sigreturn, /* 119 */
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0, linux_clone, /* 120 */
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2, setdomainname, /* 121 */
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1, linux_newuname, /* 122 */
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3, linux_modify_ldt, /* 123 */
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1, linux_adjtimex, /* 124 */
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3, mprotect, /* 125 */
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3, linux_sigprocmask, /* 126 */
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2, linux_create_module, /* 127 */
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4, linux_init_module, /* 128 */
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1, linux_delete_module, /* 129 */
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1, linux_get_kernel_syms, /* 130 */
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0, linux_quotactl, /* 131 */
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1, linux_getpgid, /* 132 */
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1, fchdir, /* 133 */
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0, linux_bdflush, /* 134 */
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};
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int bsd_to_linux_errno[ELAST] = {
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
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10, 35, 12, 13, 14, 15, 16, 17, 18, 19,
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20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
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30, 31, 32, 33, 34, 11,115,114, 88, 89,
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90, 91, 92, 93, 94, 95, 96, 97, 98, 99,
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100,101,102,103,104,105,106,107,108,109,
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110,111, 40, 36,112,113, 39, 11, 87,122,
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116, 66, 6, 6, 6, 6, 6, 37, 38, 9,
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6,
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};
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int bsd_to_linux_signal[NSIG] = {
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0, LINUX_SIGHUP, LINUX_SIGINT, LINUX_SIGQUIT,
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LINUX_SIGILL, LINUX_SIGTRAP, LINUX_SIGABRT, 0,
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LINUX_SIGFPE, LINUX_SIGKILL, LINUX_SIGBUS, LINUX_SIGSEGV,
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0, LINUX_SIGPIPE, LINUX_SIGALRM, LINUX_SIGTERM,
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LINUX_SIGURG, LINUX_SIGSTOP, LINUX_SIGTSTP, LINUX_SIGCONT,
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LINUX_SIGCHLD, LINUX_SIGTTIN, LINUX_SIGTTOU, LINUX_SIGIO,
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LINUX_SIGXCPU, LINUX_SIGXFSZ, LINUX_SIGVTALRM, LINUX_SIGPROF,
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LINUX_SIGWINCH, 0, LINUX_SIGUSR1, LINUX_SIGUSR2
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};
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int linux_to_bsd_signal[LINUX_NSIG] = {
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0, SIGHUP, SIGINT, SIGQUIT, SIGILL, SIGTRAP, SIGABRT, SIGEMT,
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SIGFPE, SIGKILL, SIGUSR1, SIGSEGV, SIGUSR2, SIGPIPE, SIGALRM, SIGTERM,
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SIGBUS, SIGCHLD, SIGCONT, SIGSTOP, SIGTSTP, SIGTTIN, SIGTTOU, SIGIO,
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SIGXCPU, SIGXFSZ, SIGVTALRM, SIGPROF, SIGWINCH, SIGURG, SIGURG, 0
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};
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int linux_fixup(int **stack_base, struct image_params *imgp)
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{
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int *argv, *envp;
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argv = *stack_base;
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envp = *stack_base + (imgp->argc + 1);
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(*stack_base)--;
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**stack_base = (int)envp;
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(*stack_base)--;
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**stack_base = (int)argv;
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(*stack_base)--;
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**stack_base = (int)imgp->argc;
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}
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struct sysentvec linux_sysvec = {
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sizeof (linux_sysent) / sizeof(linux_sysent[0]),
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linux_sysent,
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0xff,
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NSIG,
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bsd_to_linux_signal,
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ELAST,
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bsd_to_linux_errno,
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linux_fixup
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};
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