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>
43 #ifndef CONFIG_FEATURE_CHECK_TAINTED_MODULE
44 static inline void check_tainted(void) { printf("\n"); }
46 #define TAINT_FILENAME "/proc/sys/kernel/tainted"
47 #define TAINT_PROPRIETORY_MODULE (1<<0)
48 #define TAINT_FORCED_MODULE (1<<1)
49 #define TAINT_UNSAFE_SMP (1<<2)
51 static void check_tainted(void)
57 if ((f = fopen(TAINT_FILENAME, "r"))) {
58 fscanf(f, "%d", &tainted);
62 printf(" Tainted: %c%c%c\n",
63 tainted & TAINT_PROPRIETORY_MODULE ? 'P' : 'G',
64 tainted & TAINT_FORCED_MODULE ? 'F' : ' ',
65 tainted & TAINT_UNSAFE_SMP ? 'S' : ' ');
68 printf(" Not tainted\n");
73 #ifdef CONFIG_FEATURE_QUERY_MODULE_INTERFACE
84 int query_module(const char *name, int which, void *buf, size_t bufsize, size_t *ret);
86 /* Values for query_module's which. */
87 static const int QM_MODULES = 1;
88 static const int QM_DEPS = 2;
89 static const int QM_REFS = 3;
90 static const int QM_SYMBOLS = 4;
91 static const int QM_INFO = 5;
93 /* Bits of module.flags. */
94 static const int NEW_MOD_RUNNING = 1;
95 static const int NEW_MOD_DELETED = 2;
96 static const int NEW_MOD_AUTOCLEAN = 4;
97 static const int NEW_MOD_VISITED = 8;
98 static const int NEW_MOD_USED_ONCE = 16;
99 static const int NEW_MOD_INITIALIZING = 64;
101 static int my_query_module(const char *name, int which, void **buf,
102 size_t *bufsize, size_t *ret)
106 my_ret = query_module(name, which, *buf, *bufsize, ret);
108 if (my_ret == -1 && errno == ENOSPC) {
109 *buf = xrealloc(*buf, *ret);
112 my_ret = query_module(name, which, *buf, *bufsize, ret);
118 extern int lsmod_main(int argc, char **argv)
120 struct module_info info;
121 char *module_names, *mn, *deps, *dn;
122 size_t bufsize, depsize, nmod, count, i, j;
124 module_names = xmalloc(bufsize = 256);
125 if (my_query_module(NULL, QM_MODULES, (void **)&module_names, &bufsize,
127 perror_msg_and_die("QM_MODULES");
130 deps = xmalloc(depsize = 256);
131 printf("Module Size Used by");
134 for (i = 0, mn = module_names; i < nmod; mn += strlen(mn) + 1, i++) {
135 if (query_module(mn, QM_INFO, &info, sizeof(info), &count)) {
136 if (errno == ENOENT) {
137 /* The module was removed out from underneath us. */
141 perror_msg_and_die("module %s: QM_INFO", mn);
143 if (my_query_module(mn, QM_REFS, (void **)&deps, &depsize, &count)) {
144 if (errno == ENOENT) {
145 /* The module was removed out from underneath us. */
148 perror_msg_and_die("module %s: QM_REFS", mn);
150 printf("%-20s%8lu%4ld", mn, info.size, info.usecount);
151 if (info.flags & NEW_MOD_DELETED)
152 printf(" (deleted)");
153 else if (info.flags & NEW_MOD_INITIALIZING)
154 printf(" (initializing)");
155 else if (!(info.flags & NEW_MOD_RUNNING))
156 printf(" (uninitialized)");
158 if (info.flags & NEW_MOD_AUTOCLEAN)
159 printf(" (autoclean) ");
160 if (!(info.flags & NEW_MOD_USED_ONCE))
163 if (count) printf(" [");
164 for (j = 0, dn = deps; j < count; dn += strlen(dn) + 1, j++) {
165 printf("%s%s", dn, (j==count-1)? "":" ");
167 if (count) printf("]");
176 #else /* CONFIG_FEATURE_QUERY_MODULE_INTERFACE */
178 extern int lsmod_main(int argc, char **argv)
180 printf("Module Size Used by");
183 if(print_file_by_name("/proc/modules") == FALSE)
188 #endif /* CONFIG_FEATURE_QUERY_MODULE_INTERFACE */