1 /* vi: set sw=4 ts=4: */
3 * Mini lsmod implementation for busybox
5 * Copyright (C) 1999,2000 by Lineo, inc. and Erik Andersen
6 * Copyright (C) 1999,2000,2001 by Erik Andersen <andersee@debian.org>
8 * Modified by Alcove, Julien Gaulmin <julien.gaulmin@alcove.fr> and
9 * Nicolas Ferre <nicolas.ferre@alcove.fr> to support pre 2.1 kernels
10 * (which lack the query_module() interface).
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
38 #include <sys/utsname.h>
44 #define TAINT_FILENAME "/proc/sys/kernel/tainted"
45 #define TAINT_PROPRIETORY_MODULE (1<<0)
46 #define TAINT_FORCED_MODULE (1<<1)
47 #define TAINT_UNSAFE_SMP (1<<2)
49 void check_tainted(void)
55 if ((f = fopen(TAINT_FILENAME, "r"))) {
56 fscanf(f, "%d", &tainted);
60 printf(" Tainted: %c%c%c",
61 tainted & TAINT_PROPRIETORY_MODULE ? 'P' : 'G',
62 tainted & TAINT_FORCED_MODULE ? 'F' : ' ',
63 tainted & TAINT_UNSAFE_SMP ? 'S' : ' ');
66 printf(" Not tainted");
70 #ifdef CONFIG_FEATURE_QUERY_MODULE_INTERFACE
81 int query_module(const char *name, int which, void *buf, size_t bufsize, size_t *ret);
83 /* Values for query_module's which. */
84 static const int QM_MODULES = 1;
85 static const int QM_DEPS = 2;
86 static const int QM_REFS = 3;
87 static const int QM_SYMBOLS = 4;
88 static const int QM_INFO = 5;
90 /* Bits of module.flags. */
91 static const int NEW_MOD_RUNNING = 1;
92 static const int NEW_MOD_DELETED = 2;
93 static const int NEW_MOD_AUTOCLEAN = 4;
94 static const int NEW_MOD_VISITED = 8;
95 static const int NEW_MOD_USED_ONCE = 16;
96 static const int NEW_MOD_INITIALIZING = 64;
98 static int my_query_module(const char *name, int which, void **buf,
99 size_t *bufsize, size_t *ret)
103 my_ret = query_module(name, which, *buf, *bufsize, ret);
105 if (my_ret == -1 && errno == ENOSPC) {
106 *buf = xrealloc(*buf, *ret);
109 my_ret = query_module(name, which, *buf, *bufsize, ret);
115 extern int lsmod_main(int argc, char **argv)
117 struct module_info info;
118 char *module_names, *mn, *deps, *dn;
119 size_t bufsize, depsize, nmod, count, i, j;
121 module_names = xmalloc(bufsize = 256);
122 if (my_query_module(NULL, QM_MODULES, (void **)&module_names, &bufsize,
124 perror_msg_and_die("QM_MODULES");
127 deps = xmalloc(depsize = 256);
128 printf("Module Size Used by");
132 for (i = 0, mn = module_names; i < nmod; mn += strlen(mn) + 1, i++) {
133 if (query_module(mn, QM_INFO, &info, sizeof(info), &count)) {
134 if (errno == ENOENT) {
135 /* The module was removed out from underneath us. */
139 perror_msg_and_die("module %s: QM_INFO", mn);
141 if (my_query_module(mn, QM_REFS, (void **)&deps, &depsize, &count)) {
142 if (errno == ENOENT) {
143 /* The module was removed out from underneath us. */
146 perror_msg_and_die("module %s: QM_REFS", mn);
148 printf("%-20s%8lu%4ld ", mn, info.size, info.usecount);
149 if (info.flags & NEW_MOD_DELETED)
151 else if (info.flags & NEW_MOD_INITIALIZING)
152 printf("(initializing)");
153 else if (!(info.flags & NEW_MOD_RUNNING))
154 printf("(uninitialized)");
156 if (info.flags & NEW_MOD_AUTOCLEAN)
157 printf("(autoclean) ");
158 if (!(info.flags & NEW_MOD_USED_ONCE))
161 if (count) printf("[");
162 for (j = 0, dn = deps; j < count; dn += strlen(dn) + 1, j++) {
163 printf("%s%s", dn, (j==count-1)? "":" ");
165 if (count) printf("] ");
174 #else /*CONFIG_FEATURE_OLD_MODULE_INTERFACE*/
176 extern int lsmod_main(int argc, char **argv)
181 printf("Module Size Used by");
185 if ((fd = open("/proc/modules", O_RDONLY)) >= 0 ) {
186 while ((i = read(fd, line, sizeof(line))) > 0) {
187 write(fileno(stdout), line, i);
192 perror_msg_and_die("/proc/modules");
196 #endif /*CONFIG_FEATURE_OLD_MODULE_INTERFACE*/