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 2009 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #include <sys/types.h> 27 #include <sys/cmn_err.h> 28 #include <sys/modctl.h> 29 #include <sys/errno.h> 30 31 #include <rpc/auth.h> 32 #include <rpc/svc.h> 33 34 #include <sys/nsctl/nsctl.h> 35 #include <sys/nsctl/nsvers.h> 36 #include "rdc_stub.h" 37 38 static void null_dispatch(struct svc_req *req, SVCXPRT *xprt); 39 static void (*dispatch)(struct svc_req *, SVCXPRT *) = null_dispatch; 40 41 /* 42 * Solaris module setup. 43 */ 44 extern struct mod_ops mod_miscops; 45 46 static struct modlmisc modlmisc = { 47 &mod_miscops, /* Type of module */ 48 "nws:Remote Mirror kRPC Stub:" ISS_VERSION_STR 49 }; 50 51 static struct modlinkage modlinkage = { 52 MODREV_1, 53 &modlmisc, 54 NULL 55 }; 56 57 58 int 59 _init(void) 60 { 61 return (mod_install(&modlinkage)); 62 } 63 64 65 int 66 _fini(void) 67 { 68 /* unload is forbidden */ 69 return (EBUSY); 70 } 71 72 73 int 74 _info(struct modinfo *modinfop) 75 { 76 return (mod_info(&modlinkage, modinfop)); 77 } 78 79 80 /* 81 * rdcstub_dispatch is the place holder for rdcsrv_dispatch. 82 * rdcsrv registers this function as kRPC dispatch function. 83 * If rdcsrv is unloaded (uninstall package), then dispatch 84 * is set to null_dispatch 85 */ 86 void 87 rdcstub_dispatch(struct svc_req *req, SVCXPRT *xprt) 88 { 89 (*dispatch)(req, xprt); 90 } 91 92 /* ARGSUSED */ 93 static void 94 null_dispatch(struct svc_req *req, SVCXPRT *xprt) 95 { 96 svcerr_noproc(xprt); 97 } 98 99 void 100 rdcstub_set_dispatch(void (*disp)(struct svc_req *, SVCXPRT *)) 101 { 102 ASSERT(disp != NULL); 103 dispatch = disp; 104 } 105 106 void 107 rdcstub_unset_dispatch() 108 { 109 dispatch = null_dispatch; 110 } 111