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
get_modid(char * modname)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
mod_unload(char * modname)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