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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <sys/types.h> 30 #include <sys/t_lock.h> 31 #include <sys/param.h> 32 #include <sys/systm.h> 33 #include <sys/buf.h> 34 #include <sys/cmn_err.h> 35 #include <sys/debug.h> 36 #include <sys/errno.h> 37 #include <sys/vfs.h> 38 #include <sys/swap.h> 39 #include <sys/vnode.h> 40 #include <sys/cred.h> 41 #include <sys/thread.h> 42 #include <sys/zone.h> 43 44 #include <fs/fs_subr.h> 45 46 #include <sys/stream.h> 47 #include <sys/socket.h> 48 #include <sys/stropts.h> 49 #include <sys/socketvar.h> 50 51 /* 52 * This is the loadable module wrapper. 53 */ 54 #include <sys/modctl.h> 55 56 static zone_key_t sockfs_zone_key; 57 58 static vfsdef_t vfw = { 59 VFSDEF_VERSION, 60 "sockfs", 61 sockinit, 62 0, 63 NULL 64 }; 65 66 extern struct mod_ops mod_fsops; 67 68 /* 69 * Module linkage information for the kernel. 70 */ 71 static struct modlfs modlfs = { 72 &mod_fsops, "filesystem for sockfs", &vfw 73 }; 74 75 static struct modlinkage modlinkage = { 76 MODREV_1, (void *)&modlfs, NULL 77 }; 78 79 int 80 _init(void) 81 { 82 int ret; 83 84 /* 85 * We want to be informed each time a zone is created or 86 * destroyed in the kernel, so we can maintain per-zone 87 * kstat. sock_kstat_init() will also be called for the 88 * global zone, without us having to special case it here. 89 */ 90 zone_key_create(&sockfs_zone_key, 91 sock_kstat_init, NULL, sock_kstat_fini); 92 93 if ((ret = mod_install(&modlinkage)) != 0) { 94 (void) zone_key_delete(sockfs_zone_key); 95 } 96 97 return (ret); 98 } 99 100 int 101 _info(struct modinfo *modinfop) 102 { 103 return (mod_info(&modlinkage, modinfop)); 104 } 105 106 int 107 _fini(void) 108 { 109 /* zone_key_delete(sockfs_zone_key); - if we were ever to be unloaded */ 110 111 return (EBUSY); 112 } 113 114 /* 115 * N.B. 116 * No _fini routine. This module cannot be unloaded once loaded. 117 * The NO_UNLOAD_STUB in modstub.s must change if this module ever 118 * is modified to become unloadable. 119 */ 120