1 /* vi: set sw=4 ts=4: */
3 * Mini lsmod implementation for busybox
5 * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
7 * Modified by Alcove, Julien Gaulmin <julien.gaulmin@alcove.fr> and
8 * Nicolas Ferre <nicolas.ferre@alcove.fr> to support pre 2.1 kernels
9 * (which lack the query_module() interface).
11 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
25 #include <sys/utsname.h>
29 #ifndef CONFIG_FEATURE_CHECK_TAINTED_MODULE
30 static inline void check_tainted(void) { printf("\n"); }
32 #define TAINT_FILENAME "/proc/sys/kernel/tainted"
33 #define TAINT_PROPRIETORY_MODULE (1<<0)
34 #define TAINT_FORCED_MODULE (1<<1)
35 #define TAINT_UNSAFE_SMP (1<<2)
37 static void check_tainted(void)
43 if ((f = fopen(TAINT_FILENAME, "r"))) {
44 fscanf(f, "%d", &tainted);
48 printf(" Tainted: %c%c%c\n",
49 tainted & TAINT_PROPRIETORY_MODULE ? 'P' : 'G',
50 tainted & TAINT_FORCED_MODULE ? 'F' : ' ',
51 tainted & TAINT_UNSAFE_SMP ? 'S' : ' ');
54 printf(" Not tainted\n");
59 #ifdef CONFIG_FEATURE_QUERY_MODULE_INTERFACE
70 int query_module(const char *name, int which, void *buf, size_t bufsize, size_t *ret);
73 /* Values for query_module's which. */
80 /* Bits of module.flags. */
83 NEW_MOD_AUTOCLEAN = 4,
85 NEW_MOD_USED_ONCE = 16,
86 NEW_MOD_INITIALIZING = 64
89 int lsmod_main(int argc, char **argv)
91 struct module_info info;
92 char *module_names, *mn, *deps, *dn;
93 size_t bufsize, depsize, nmod, count, i, j;
95 module_names = xmalloc(bufsize = 256);
96 if (my_query_module(NULL, QM_MODULES, (void **)&module_names, &bufsize,
98 bb_perror_msg_and_die("QM_MODULES");
101 deps = xmalloc(depsize = 256);
102 printf("Module Size Used by");
105 for (i = 0, mn = module_names; i < nmod; mn += strlen(mn) + 1, i++) {
106 if (query_module(mn, QM_INFO, &info, sizeof(info), &count)) {
107 if (errno == ENOENT) {
108 /* The module was removed out from underneath us. */
112 bb_perror_msg_and_die("module %s: QM_INFO", mn);
114 if (my_query_module(mn, QM_REFS, (void **)&deps, &depsize, &count)) {
115 if (errno == ENOENT) {
116 /* The module was removed out from underneath us. */
119 bb_perror_msg_and_die("module %s: QM_REFS", mn);
121 printf("%-20s%8lu%4ld", mn, info.size, info.usecount);
122 if (info.flags & NEW_MOD_DELETED)
123 printf(" (deleted)");
124 else if (info.flags & NEW_MOD_INITIALIZING)
125 printf(" (initializing)");
126 else if (!(info.flags & NEW_MOD_RUNNING))
127 printf(" (uninitialized)");
129 if (info.flags & NEW_MOD_AUTOCLEAN)
130 printf(" (autoclean) ");
131 if (!(info.flags & NEW_MOD_USED_ONCE))
134 if (count) printf(" [");
135 for (j = 0, dn = deps; j < count; dn += strlen(dn) + 1, j++) {
136 printf("%s%s", dn, (j==count-1)? "":" ");
138 if (count) printf("]");
143 #ifdef CONFIG_FEATURE_CLEAN_UP
150 #else /* CONFIG_FEATURE_QUERY_MODULE_INTERFACE */
152 int lsmod_main(int argc, char **argv)
154 printf("Module Size Used by");
156 #if defined(CONFIG_FEATURE_LSMOD_PRETTY_2_6_OUTPUT)
161 file = bb_xfopen("/proc/modules", "r");
163 while (fgets(line, sizeof(line), file)) {
166 tok = strtok(line, " \t");
167 printf("%-19s", tok);
168 tok = strtok(NULL, " \t\n");
170 tok = strtok(NULL, " \t\n");
171 /* Null if no module unloading support. */
174 tok = strtok(NULL, "\n");
177 /* New-style has commas, or -. If so,
178 truncate (other fields might follow). */
179 else if (strchr(tok, ',')) {
180 tok = strtok(tok, "\t ");
181 /* Strip trailing comma. */
182 if (tok[strlen(tok)-1] == ',')
183 tok[strlen(tok)-1] = '\0';
184 } else if (tok[0] == '-'
185 && (tok[1] == '\0' || isspace(tok[1])))
193 return 0; /* Success */
195 if (bb_xprint_file_by_name("/proc/modules") < 0) {
198 #endif /* CONFIG_FEATURE_2_6_MODULES */
202 #endif /* CONFIG_FEATURE_QUERY_MODULE_INTERFACE */