11.7Spgoyette/* $NetBSD: freebsd_mod.c,v 1.7 2019/02/05 00:40:15 pgoyette Exp $ */ 21.1Sad 31.1Sad/*- 41.1Sad * Copyright (c) 2008 The NetBSD Foundation, Inc. 51.1Sad * All rights reserved. 61.1Sad * 71.1Sad * This code is derived from software developed for The NetBSD Foundation 81.1Sad * by Andrew Doran. 91.1Sad * 101.1Sad * Redistribution and use in source and binary forms, with or without 111.1Sad * modification, are permitted provided that the following conditions 121.1Sad * are met: 131.1Sad * 1. Redistributions of source code must retain the above copyright 141.1Sad * notice, this list of conditions and the following disclaimer. 151.1Sad * 2. Redistributions in binary form must reproduce the above copyright 161.1Sad * notice, this list of conditions and the following disclaimer in the 171.1Sad * documentation and/or other materials provided with the distribution. 181.1Sad * 191.1Sad * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 201.1Sad * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 211.1Sad * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 221.1Sad * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 231.1Sad * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 241.1Sad * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 251.1Sad * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 261.1Sad * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 271.1Sad * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 281.1Sad * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 291.1Sad * POSSIBILITY OF SUCH DAMAGE. 301.1Sad */ 311.1Sad 321.1Sad#include <sys/cdefs.h> 331.7Spgoyette__KERNEL_RCSID(0, "$NetBSD: freebsd_mod.c,v 1.7 2019/02/05 00:40:15 pgoyette Exp $"); 341.1Sad 351.1Sad#ifdef _KERNEL_OPT 361.1Sad#include "opt_execfmt.h" 371.1Sad#endif 381.1Sad 391.1Sad#include <sys/param.h> 401.1Sad#include <sys/module.h> 411.1Sad#include <sys/exec.h> 421.1Sad#include <sys/exec_elf.h> 431.1Sad#include <sys/signalvar.h> 441.1Sad 451.1Sad#include <compat/freebsd/freebsd_exec.h> 461.1Sad#include <compat/freebsd/freebsd_sysctl.h> 471.1Sad 481.1Sad#if defined(EXEC_ELF32) 491.1Sad# define MD1 ",exec_elf32" 501.1Sad#else 511.1Sad# define MD1 "" 521.1Sad#endif 531.1Sad 541.1Sad#define ELF32_AUXSIZE (howmany(ELF_AUX_ENTRIES * sizeof(Aux32Info), \ 551.1Sad sizeof(Elf32_Addr)) + MAXPATHLEN + ALIGN(1)) 561.1Sad 571.7SpgoyetteMODULE(MODULE_CLASS_EXEC, compat_freebsd, "compat_09,compat_ossaudio" MD1); 581.1Sad 591.1Sadstatic struct execsw freebsd_execsw[] = { 601.1Sad#ifdef EXEC_ELF32 611.1Sad /* FreeBSD Elf32 (probe not 64-bit safe) */ 621.4Schristos { 631.4Schristos .es_hdrsz = sizeof (Elf32_Ehdr), 641.4Schristos .es_makecmds = exec_elf32_makecmds, 651.4Schristos .u = { 661.4Schristos .elf_probe_func = freebsd_elf32_probe, 671.4Schristos }, 681.4Schristos .es_emul = &emul_freebsd, 691.4Schristos .es_prio = EXECSW_PRIO_ANY, 701.4Schristos .es_arglen = ELF32_AUXSIZE, 711.4Schristos .es_copyargs = elf32_copyargs, 721.4Schristos .es_setregs = NULL, 731.4Schristos .es_coredump = coredump_elf32, 741.4Schristos .es_setup_stack = exec_setup_stack, 751.4Schristos }, 761.1Sad#endif 771.1Sad}; 781.1Sad 791.1Sadstatic int 801.1Sadcompat_freebsd_modcmd(modcmd_t cmd, void *arg) 811.1Sad{ 821.1Sad int error; 831.1Sad 841.1Sad switch (cmd) { 851.1Sad case MODULE_CMD_INIT: 861.1Sad freebsd_sysctl_init(); 871.1Sad error = exec_add(freebsd_execsw, 881.1Sad __arraycount(freebsd_execsw)); 891.1Sad if (error != 0) 901.1Sad freebsd_sysctl_fini(); 911.1Sad return error; 921.1Sad 931.1Sad case MODULE_CMD_FINI: 941.1Sad error = exec_remove(freebsd_execsw, 951.1Sad __arraycount(freebsd_execsw)); 961.1Sad if (error == 0) 971.1Sad freebsd_sysctl_fini(); 981.1Sad return error; 991.1Sad 1001.1Sad default: 1011.1Sad return ENOTTY; 1021.1Sad } 1031.1Sad} 104