1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate #include <sys/types.h> 30*0Sstevel@tonic-gate #include <sys/mman.h> 31*0Sstevel@tonic-gate #include <sys/stat.h> 32*0Sstevel@tonic-gate #include <sys/wait.h> 33*0Sstevel@tonic-gate #include <sys/errno.h> 34*0Sstevel@tonic-gate #include <sys/modctl.h> 35*0Sstevel@tonic-gate #include <stdio.h> 36*0Sstevel@tonic-gate #include <string.h> 37*0Sstevel@tonic-gate #include <errno.h> 38*0Sstevel@tonic-gate #include <svm.h> 39*0Sstevel@tonic-gate 40*0Sstevel@tonic-gate /* 41*0Sstevel@tonic-gate * FUNCTION: get modid 42*0Sstevel@tonic-gate * Given a module name returns module id. 43*0Sstevel@tonic-gate * 44*0Sstevel@tonic-gate * INPUT: module name 45*0Sstevel@tonic-gate * 46*0Sstevel@tonic-gate * RETURN VALUES: 47*0Sstevel@tonic-gate * > 0 SUCCESS 48*0Sstevel@tonic-gate * -1 FAIL 49*0Sstevel@tonic-gate */ 50*0Sstevel@tonic-gate 51*0Sstevel@tonic-gate static int 52*0Sstevel@tonic-gate get_modid(char *modname) 53*0Sstevel@tonic-gate { 54*0Sstevel@tonic-gate struct modinfo modinfo; 55*0Sstevel@tonic-gate int id; 56*0Sstevel@tonic-gate int rval = RET_ERROR; 57*0Sstevel@tonic-gate 58*0Sstevel@tonic-gate id = -1; /* look for all modules */ 59*0Sstevel@tonic-gate 60*0Sstevel@tonic-gate modinfo.mi_id = modinfo.mi_nextid = id; 61*0Sstevel@tonic-gate modinfo.mi_info = MI_INFO_ALL | MI_INFO_NOBASE; 62*0Sstevel@tonic-gate 63*0Sstevel@tonic-gate do { 64*0Sstevel@tonic-gate if (modctl(MODINFO, id, &modinfo) < 0) 65*0Sstevel@tonic-gate break; 66*0Sstevel@tonic-gate 67*0Sstevel@tonic-gate modinfo.mi_name[MODMAXNAMELEN - 1] = '\0'; 68*0Sstevel@tonic-gate /* if we find a match break out */ 69*0Sstevel@tonic-gate if (strcmp(modinfo.mi_name, modname) == 0) { 70*0Sstevel@tonic-gate rval = modinfo.mi_id; 71*0Sstevel@tonic-gate break; 72*0Sstevel@tonic-gate } 73*0Sstevel@tonic-gate /* LINTED */ 74*0Sstevel@tonic-gate } while (1); 75*0Sstevel@tonic-gate 76*0Sstevel@tonic-gate return (rval); 77*0Sstevel@tonic-gate } 78*0Sstevel@tonic-gate 79*0Sstevel@tonic-gate /* 80*0Sstevel@tonic-gate * FUNCTION: mod_unload 81*0Sstevel@tonic-gate * unload a module. 82*0Sstevel@tonic-gate * 83*0Sstevel@tonic-gate * INPUT: module name 84*0Sstevel@tonic-gate * 85*0Sstevel@tonic-gate * RETURN VALUES: 86*0Sstevel@tonic-gate * 0 - SUCCESS 87*0Sstevel@tonic-gate * !0 - FAIL 88*0Sstevel@tonic-gate * > 0 errno 89*0Sstevel@tonic-gate * -1 90*0Sstevel@tonic-gate * NOTE: If we fail to get the module id because the module is not 91*0Sstevel@tonic-gate * currently loaded we still want to try to force a reload of the 92*0Sstevel@tonic-gate * .conf file when it does load. 93*0Sstevel@tonic-gate */ 94*0Sstevel@tonic-gate int 95*0Sstevel@tonic-gate mod_unload(char *modname) 96*0Sstevel@tonic-gate { 97*0Sstevel@tonic-gate int id; 98*0Sstevel@tonic-gate major_t major; 99*0Sstevel@tonic-gate int rval = RET_SUCCESS; 100*0Sstevel@tonic-gate 101*0Sstevel@tonic-gate id = get_modid(modname); 102*0Sstevel@tonic-gate 103*0Sstevel@tonic-gate if (id != -1) { 104*0Sstevel@tonic-gate if (modctl(MODUNLOAD, id) < 0) { 105*0Sstevel@tonic-gate rval = errno; 106*0Sstevel@tonic-gate } 107*0Sstevel@tonic-gate } 108*0Sstevel@tonic-gate 109*0Sstevel@tonic-gate if ((modctl(MODGETMAJBIND, modname, strlen(modname) + 1, 110*0Sstevel@tonic-gate &major)) != 0) { 111*0Sstevel@tonic-gate return (errno); 112*0Sstevel@tonic-gate } 113*0Sstevel@tonic-gate 114*0Sstevel@tonic-gate if ((modctl(MODUNLOADDRVCONF, major) != 0) || 115*0Sstevel@tonic-gate (modctl(MODLOADDRVCONF, major) != 0)) { 116*0Sstevel@tonic-gate return (errno); 117*0Sstevel@tonic-gate } 118*0Sstevel@tonic-gate 119*0Sstevel@tonic-gate return (rval); 120*0Sstevel@tonic-gate } 121