1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21/* 22 * Copyright (c) 1995, 2010, Oracle and/or its affiliates. All rights reserved. 23 */ 24 25#include <sys/types.h> 26#include <sys/t_lock.h> 27#include <sys/param.h> 28#include <sys/systm.h> 29#include <sys/buf.h> 30#include <sys/cmn_err.h> 31#include <sys/debug.h> 32#include <sys/errno.h> 33#include <sys/vfs.h> 34#include <sys/swap.h> 35#include <sys/vnode.h> 36#include <sys/cred.h> 37#include <sys/thread.h> 38#include <sys/zone.h> 39 40#include <fs/fs_subr.h> 41 42#include <sys/stream.h> 43#include <sys/socket.h> 44#include <sys/stropts.h> 45#include <sys/socketvar.h> 46 47/* 48 * This is the loadable module wrapper. 49 */ 50#include <sys/modctl.h> 51 52static zone_key_t sockfs_zone_key; 53 54static vfsdef_t vfw = { 55 VFSDEF_VERSION, 56 "sockfs", 57 sockinit, 58 VSW_ZMOUNT, 59 NULL 60}; 61 62extern struct mod_ops mod_fsops; 63 64/* 65 * Module linkage information for the kernel. 66 */ 67static struct modlfs modlfs = { 68 &mod_fsops, "filesystem for sockfs", &vfw 69}; 70 71static struct modlinkage modlinkage = { 72 MODREV_1, (void *)&modlfs, NULL 73}; 74 75int 76_init(void) 77{ 78 int ret; 79 80 /* 81 * We want to be informed each time a zone is created or 82 * destroyed in the kernel, so we can maintain per-zone 83 * kstat. sock_kstat_init() will also be called for the 84 * global zone, without us having to special case it here. 85 */ 86 zone_key_create(&sockfs_zone_key, 87 sock_kstat_init, NULL, sock_kstat_fini); 88 89 if ((ret = mod_install(&modlinkage)) != 0) { 90 (void) zone_key_delete(sockfs_zone_key); 91 } 92 93 return (ret); 94} 95 96int 97_info(struct modinfo *modinfop) 98{ 99 return (mod_info(&modlinkage, modinfop)); 100} 101 102int 103_fini(void) 104{ 105 /* zone_key_delete(sockfs_zone_key); - if we were ever to be unloaded */ 106 107 return (EBUSY); 108} 109 110/* 111 * N.B. 112 * No _fini routine. This module cannot be unloaded once loaded. 113 * The NO_UNLOAD_STUB in modstub.s must change if this module ever 114 * is modified to become unloadable. 115 */ 116