mirror of
https://github.com/sheumann/hush.git
synced 2024-08-16 09:29:16 +00:00
189 lines
4.9 KiB
C
189 lines
4.9 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Mini lsmod implementation for busybox
|
|
*
|
|
* Copyright (C) 1999,2000 by Lineo, inc. and Erik Andersen
|
|
* Copyright (C) 1999,2000,2001 by Erik Andersen <andersee@debian.org>
|
|
*
|
|
* Modified by Alcove, Julien Gaulmin <julien.gaulmin@alcove.fr> and
|
|
* Nicolas Ferre <nicolas.ferre@alcove.fr> to support pre 2.1 kernels
|
|
* (which lack the query_module() interface).
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stddef.h>
|
|
#include <errno.h>
|
|
#include <unistd.h>
|
|
#include <dirent.h>
|
|
#include <ctype.h>
|
|
#include <assert.h>
|
|
#include <getopt.h>
|
|
#include <sys/utsname.h>
|
|
#include <sys/file.h>
|
|
#include "busybox.h"
|
|
|
|
|
|
#ifndef CONFIG_FEATURE_CHECK_TAINTED_MODULE
|
|
static inline void check_tainted(void) { printf("\n"); }
|
|
#else
|
|
#define TAINT_FILENAME "/proc/sys/kernel/tainted"
|
|
#define TAINT_PROPRIETORY_MODULE (1<<0)
|
|
#define TAINT_FORCED_MODULE (1<<1)
|
|
#define TAINT_UNSAFE_SMP (1<<2)
|
|
|
|
static void check_tainted(void)
|
|
{
|
|
int tainted;
|
|
FILE *f;
|
|
|
|
tainted = 0;
|
|
if ((f = fopen(TAINT_FILENAME, "r"))) {
|
|
fscanf(f, "%d", &tainted);
|
|
fclose(f);
|
|
}
|
|
if (f && tainted) {
|
|
printf(" Tainted: %c%c%c\n",
|
|
tainted & TAINT_PROPRIETORY_MODULE ? 'P' : 'G',
|
|
tainted & TAINT_FORCED_MODULE ? 'F' : ' ',
|
|
tainted & TAINT_UNSAFE_SMP ? 'S' : ' ');
|
|
}
|
|
else {
|
|
printf(" Not tainted\n");
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_FEATURE_QUERY_MODULE_INTERFACE
|
|
|
|
struct module_info
|
|
{
|
|
unsigned long addr;
|
|
unsigned long size;
|
|
unsigned long flags;
|
|
long usecount;
|
|
};
|
|
|
|
|
|
int query_module(const char *name, int which, void *buf, size_t bufsize, size_t *ret);
|
|
|
|
/* Values for query_module's which. */
|
|
static const int QM_MODULES = 1;
|
|
static const int QM_DEPS = 2;
|
|
static const int QM_REFS = 3;
|
|
static const int QM_SYMBOLS = 4;
|
|
static const int QM_INFO = 5;
|
|
|
|
/* Bits of module.flags. */
|
|
static const int NEW_MOD_RUNNING = 1;
|
|
static const int NEW_MOD_DELETED = 2;
|
|
static const int NEW_MOD_AUTOCLEAN = 4;
|
|
static const int NEW_MOD_VISITED = 8;
|
|
static const int NEW_MOD_USED_ONCE = 16;
|
|
static const int NEW_MOD_INITIALIZING = 64;
|
|
|
|
static int my_query_module(const char *name, int which, void **buf,
|
|
size_t *bufsize, size_t *ret)
|
|
{
|
|
int my_ret;
|
|
|
|
my_ret = query_module(name, which, *buf, *bufsize, ret);
|
|
|
|
if (my_ret == -1 && errno == ENOSPC) {
|
|
*buf = xrealloc(*buf, *ret);
|
|
*bufsize = *ret;
|
|
|
|
my_ret = query_module(name, which, *buf, *bufsize, ret);
|
|
}
|
|
|
|
return my_ret;
|
|
}
|
|
|
|
extern int lsmod_main(int argc, char **argv)
|
|
{
|
|
struct module_info info;
|
|
char *module_names, *mn, *deps, *dn;
|
|
size_t bufsize, depsize, nmod, count, i, j;
|
|
|
|
module_names = xmalloc(bufsize = 256);
|
|
if (my_query_module(NULL, QM_MODULES, (void **)&module_names, &bufsize,
|
|
&nmod)) {
|
|
perror_msg_and_die("QM_MODULES");
|
|
}
|
|
|
|
deps = xmalloc(depsize = 256);
|
|
printf("Module Size Used by");
|
|
check_tainted();
|
|
|
|
for (i = 0, mn = module_names; i < nmod; mn += strlen(mn) + 1, i++) {
|
|
if (query_module(mn, QM_INFO, &info, sizeof(info), &count)) {
|
|
if (errno == ENOENT) {
|
|
/* The module was removed out from underneath us. */
|
|
continue;
|
|
}
|
|
/* else choke */
|
|
perror_msg_and_die("module %s: QM_INFO", mn);
|
|
}
|
|
if (my_query_module(mn, QM_REFS, (void **)&deps, &depsize, &count)) {
|
|
if (errno == ENOENT) {
|
|
/* The module was removed out from underneath us. */
|
|
continue;
|
|
}
|
|
perror_msg_and_die("module %s: QM_REFS", mn);
|
|
}
|
|
printf("%-20s%8lu%4ld ", mn, info.size, info.usecount);
|
|
if (info.flags & NEW_MOD_DELETED)
|
|
printf("(deleted)");
|
|
else if (info.flags & NEW_MOD_INITIALIZING)
|
|
printf("(initializing)");
|
|
else if (!(info.flags & NEW_MOD_RUNNING))
|
|
printf("(uninitialized)");
|
|
else {
|
|
if (info.flags & NEW_MOD_AUTOCLEAN)
|
|
printf("(autoclean) ");
|
|
if (!(info.flags & NEW_MOD_USED_ONCE))
|
|
printf("(unused)");
|
|
}
|
|
if (count) printf("[");
|
|
for (j = 0, dn = deps; j < count; dn += strlen(dn) + 1, j++) {
|
|
printf("%s%s", dn, (j==count-1)? "":" ");
|
|
}
|
|
if (count) printf("] ");
|
|
|
|
printf("\n");
|
|
}
|
|
|
|
|
|
return( 0);
|
|
}
|
|
|
|
#else /* CONFIG_FEATURE_QUERY_MODULE_INTERFACE */
|
|
|
|
extern int lsmod_main(int argc, char **argv)
|
|
{
|
|
printf("Module Size Used by");
|
|
check_tainted();
|
|
|
|
if(print_file_by_name("/proc/modules") == FALSE)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
#endif /* CONFIG_FEATURE_QUERY_MODULE_INTERFACE */
|