nfs_nfssvc.c revision 1.1.1.1.10.2
1 1.1.1.1.10.2 tls /* $NetBSD: nfs_nfssvc.c,v 1.1.1.1.10.2 2014/08/20 00:04:27 tls Exp $ */ 2 1.1.1.1.10.2 tls /*- 3 1.1.1.1.10.2 tls * Copyright (c) 1989, 1993 4 1.1.1.1.10.2 tls * The Regents of the University of California. All rights reserved. 5 1.1.1.1.10.2 tls * 6 1.1.1.1.10.2 tls * This code is derived from software contributed to Berkeley by 7 1.1.1.1.10.2 tls * Rick Macklem at The University of Guelph. 8 1.1.1.1.10.2 tls * 9 1.1.1.1.10.2 tls * Redistribution and use in source and binary forms, with or without 10 1.1.1.1.10.2 tls * modification, are permitted provided that the following conditions 11 1.1.1.1.10.2 tls * are met: 12 1.1.1.1.10.2 tls * 1. Redistributions of source code must retain the above copyright 13 1.1.1.1.10.2 tls * notice, this list of conditions and the following disclaimer. 14 1.1.1.1.10.2 tls * 2. Redistributions in binary form must reproduce the above copyright 15 1.1.1.1.10.2 tls * notice, this list of conditions and the following disclaimer in the 16 1.1.1.1.10.2 tls * documentation and/or other materials provided with the distribution. 17 1.1.1.1.10.2 tls * 4. Neither the name of the University nor the names of its contributors 18 1.1.1.1.10.2 tls * may be used to endorse or promote products derived from this software 19 1.1.1.1.10.2 tls * without specific prior written permission. 20 1.1.1.1.10.2 tls * 21 1.1.1.1.10.2 tls * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 1.1.1.1.10.2 tls * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 1.1.1.1.10.2 tls * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 1.1.1.1.10.2 tls * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 1.1.1.1.10.2 tls * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 1.1.1.1.10.2 tls * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 1.1.1.1.10.2 tls * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 1.1.1.1.10.2 tls * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 1.1.1.1.10.2 tls * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 1.1.1.1.10.2 tls * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 1.1.1.1.10.2 tls * SUCH DAMAGE. 32 1.1.1.1.10.2 tls * 33 1.1.1.1.10.2 tls */ 34 1.1.1.1.10.2 tls 35 1.1.1.1.10.2 tls #include <sys/cdefs.h> 36 1.1.1.1.10.2 tls /* __FBSDID("FreeBSD: head/sys/nfs/nfs_nfssvc.c 243782 2012-12-02 01:16:04Z rmacklem "); */ 37 1.1.1.1.10.2 tls __RCSID("$NetBSD: nfs_nfssvc.c,v 1.1.1.1.10.2 2014/08/20 00:04:27 tls Exp $"); 38 1.1.1.1.10.2 tls 39 1.1.1.1.10.2 tls #include "opt_nfs.h" 40 1.1.1.1.10.2 tls 41 1.1.1.1.10.2 tls #include <sys/param.h> 42 1.1.1.1.10.2 tls #include <sys/systm.h> 43 1.1.1.1.10.2 tls #include <sys/sysproto.h> 44 1.1.1.1.10.2 tls #include <sys/kernel.h> 45 1.1.1.1.10.2 tls #include <sys/sysctl.h> 46 1.1.1.1.10.2 tls #include <sys/priv.h> 47 1.1.1.1.10.2 tls #include <sys/proc.h> 48 1.1.1.1.10.2 tls #include <sys/lock.h> 49 1.1.1.1.10.2 tls #include <sys/mutex.h> 50 1.1.1.1.10.2 tls #include <sys/module.h> 51 1.1.1.1.10.2 tls #include <sys/sysent.h> 52 1.1.1.1.10.2 tls #include <sys/syscall.h> 53 1.1.1.1.10.2 tls #include <sys/sysproto.h> 54 1.1.1.1.10.2 tls 55 1.1.1.1.10.2 tls #include <security/audit/audit.h> 56 1.1.1.1.10.2 tls 57 1.1.1.1.10.2 tls #include <nfs/nfssvc.h> 58 1.1.1.1.10.2 tls 59 1.1.1.1.10.2 tls static int nfssvc_offset = SYS_nfssvc; 60 1.1.1.1.10.2 tls static struct sysent nfssvc_prev_sysent; 61 1.1.1.1.10.2 tls MAKE_SYSENT(nfssvc); 62 1.1.1.1.10.2 tls 63 1.1.1.1.10.2 tls /* 64 1.1.1.1.10.2 tls * This tiny module simply handles the nfssvc() system call. The other 65 1.1.1.1.10.2 tls * nfs modules that use the system call register themselves by setting 66 1.1.1.1.10.2 tls * the nfsd_call_xxx function pointers non-NULL. 67 1.1.1.1.10.2 tls */ 68 1.1.1.1.10.2 tls 69 1.1.1.1.10.2 tls int (*nfsd_call_nfsserver)(struct thread *, struct nfssvc_args *) = NULL; 70 1.1.1.1.10.2 tls int (*nfsd_call_nfscommon)(struct thread *, struct nfssvc_args *) = NULL; 71 1.1.1.1.10.2 tls int (*nfsd_call_nfscl)(struct thread *, struct nfssvc_args *) = NULL; 72 1.1.1.1.10.2 tls int (*nfsd_call_nfsd)(struct thread *, struct nfssvc_args *) = NULL; 73 1.1.1.1.10.2 tls 74 1.1.1.1.10.2 tls /* 75 1.1.1.1.10.2 tls * Nfs server psuedo system call for the nfsd's 76 1.1.1.1.10.2 tls */ 77 1.1.1.1.10.2 tls int 78 1.1.1.1.10.2 tls sys_nfssvc(struct thread *td, struct nfssvc_args *uap) 79 1.1.1.1.10.2 tls { 80 1.1.1.1.10.2 tls int error; 81 1.1.1.1.10.2 tls 82 1.1.1.1.10.2 tls KASSERT(!mtx_owned(&Giant), ("nfssvc(): called with Giant")); 83 1.1.1.1.10.2 tls 84 1.1.1.1.10.2 tls AUDIT_ARG_CMD(uap->flag); 85 1.1.1.1.10.2 tls 86 1.1.1.1.10.2 tls /* Allow anyone to get the stats. */ 87 1.1.1.1.10.2 tls if ((uap->flag & ~NFSSVC_GETSTATS) != 0) { 88 1.1.1.1.10.2 tls error = priv_check(td, PRIV_NFS_DAEMON); 89 1.1.1.1.10.2 tls if (error != 0) 90 1.1.1.1.10.2 tls return (error); 91 1.1.1.1.10.2 tls } 92 1.1.1.1.10.2 tls error = EINVAL; 93 1.1.1.1.10.2 tls if ((uap->flag & (NFSSVC_ADDSOCK | NFSSVC_OLDNFSD | NFSSVC_NFSD)) && 94 1.1.1.1.10.2 tls nfsd_call_nfsserver != NULL) 95 1.1.1.1.10.2 tls error = (*nfsd_call_nfsserver)(td, uap); 96 1.1.1.1.10.2 tls else if ((uap->flag & (NFSSVC_CBADDSOCK | NFSSVC_NFSCBD | 97 1.1.1.1.10.2 tls NFSSVC_DUMPMNTOPTS)) && nfsd_call_nfscl != NULL) 98 1.1.1.1.10.2 tls error = (*nfsd_call_nfscl)(td, uap); 99 1.1.1.1.10.2 tls else if ((uap->flag & (NFSSVC_IDNAME | NFSSVC_GETSTATS | 100 1.1.1.1.10.2 tls NFSSVC_GSSDADDPORT | NFSSVC_GSSDADDFIRST | NFSSVC_GSSDDELETEALL | 101 1.1.1.1.10.2 tls NFSSVC_NFSUSERDPORT | NFSSVC_NFSUSERDDELPORT)) && 102 1.1.1.1.10.2 tls nfsd_call_nfscommon != NULL) 103 1.1.1.1.10.2 tls error = (*nfsd_call_nfscommon)(td, uap); 104 1.1.1.1.10.2 tls else if ((uap->flag & (NFSSVC_NFSDNFSD | NFSSVC_NFSDADDSOCK | 105 1.1.1.1.10.2 tls NFSSVC_PUBLICFH | NFSSVC_V4ROOTEXPORT | NFSSVC_NOPUBLICFH | 106 1.1.1.1.10.2 tls NFSSVC_STABLERESTART | NFSSVC_ADMINREVOKE | 107 1.1.1.1.10.2 tls NFSSVC_DUMPCLIENTS | NFSSVC_DUMPLOCKS | NFSSVC_BACKUPSTABLE | 108 1.1.1.1.10.2 tls NFSSVC_SUSPENDNFSD | NFSSVC_RESUMENFSD)) && 109 1.1.1.1.10.2 tls nfsd_call_nfsd != NULL) 110 1.1.1.1.10.2 tls error = (*nfsd_call_nfsd)(td, uap); 111 1.1.1.1.10.2 tls if (error == EINTR || error == ERESTART) 112 1.1.1.1.10.2 tls error = 0; 113 1.1.1.1.10.2 tls return (error); 114 1.1.1.1.10.2 tls } 115 1.1.1.1.10.2 tls 116 1.1.1.1.10.2 tls /* 117 1.1.1.1.10.2 tls * Called once to initialize data structures... 118 1.1.1.1.10.2 tls */ 119 1.1.1.1.10.2 tls static int 120 1.1.1.1.10.2 tls nfssvc_modevent(module_t mod, int type, void *data) 121 1.1.1.1.10.2 tls { 122 1.1.1.1.10.2 tls static int registered; 123 1.1.1.1.10.2 tls int error = 0; 124 1.1.1.1.10.2 tls 125 1.1.1.1.10.2 tls switch (type) { 126 1.1.1.1.10.2 tls case MOD_LOAD: 127 1.1.1.1.10.2 tls error = syscall_register(&nfssvc_offset, &nfssvc_sysent, 128 1.1.1.1.10.2 tls &nfssvc_prev_sysent); 129 1.1.1.1.10.2 tls if (error) 130 1.1.1.1.10.2 tls break; 131 1.1.1.1.10.2 tls registered = 1; 132 1.1.1.1.10.2 tls break; 133 1.1.1.1.10.2 tls 134 1.1.1.1.10.2 tls case MOD_UNLOAD: 135 1.1.1.1.10.2 tls if (nfsd_call_nfsserver != NULL || nfsd_call_nfscommon != NULL 136 1.1.1.1.10.2 tls || nfsd_call_nfscl != NULL || nfsd_call_nfsd != NULL) { 137 1.1.1.1.10.2 tls error = EBUSY; 138 1.1.1.1.10.2 tls break; 139 1.1.1.1.10.2 tls } 140 1.1.1.1.10.2 tls if (registered) 141 1.1.1.1.10.2 tls syscall_deregister(&nfssvc_offset, &nfssvc_prev_sysent); 142 1.1.1.1.10.2 tls registered = 0; 143 1.1.1.1.10.2 tls break; 144 1.1.1.1.10.2 tls default: 145 1.1.1.1.10.2 tls error = EOPNOTSUPP; 146 1.1.1.1.10.2 tls break; 147 1.1.1.1.10.2 tls } 148 1.1.1.1.10.2 tls return error; 149 1.1.1.1.10.2 tls } 150 1.1.1.1.10.2 tls static moduledata_t nfssvc_mod = { 151 1.1.1.1.10.2 tls "nfssvc", 152 1.1.1.1.10.2 tls nfssvc_modevent, 153 1.1.1.1.10.2 tls NULL, 154 1.1.1.1.10.2 tls }; 155 1.1.1.1.10.2 tls DECLARE_MODULE(nfssvc, nfssvc_mod, SI_SUB_VFS, SI_ORDER_ANY); 156 1.1.1.1.10.2 tls 157 1.1.1.1.10.2 tls /* So that loader and kldload(2) can find us, wherever we are.. */ 158 1.1.1.1.10.2 tls MODULE_VERSION(nfssvc, 1); 159 1.1.1.1.10.2 tls 160
Indexes created Fri Oct 03 02:09:57 GMT 2025