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)) {
bb_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 */
bb_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;
}
bb_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");
}
#ifdef CONFIG_FEATURE_CLEAN_UP
free(module_names);
#endif
return( 0);
}
extern int rmmod_main(int argc, char **argv)
{
int n, ret = EXIT_SUCCESS;
size_t nmod = 0; /* number of modules */
size_t pnmod = -1; /* previous number of modules */
void *buf; /* hold the module names which we ignore but must get */
size_t bufsize = 0;
unsigned int flags = O_NONBLOCK|O_EXCL;
/* Parse command line. */
while ((n = getopt(argc, argv, "a")) != EOF) {
switch (n) {
case 'w': // --wait
flags &= ~O_NONBLOCK;
break;
case 'f': // --force
flags |= O_TRUNC;
break;
case 'a':
/* Unload _all_ unused modules via NULL delete_module() call */
/* until the number of modules does not change */
buf = xmalloc(bufsize = 256);
while (nmod != pnmod) {
if (delete_module(NULL))
bb_perror_msg_and_die("rmmod");
pnmod = nmod;
/* 1 == QM_MODULES */
if (my_query_module(NULL, 1, &buf, &bufsize, &nmod)) {
bb_perror_msg_and_die("QM_MODULES");
}
}
#ifdef CONFIG_FEATURE_CLEAN_UP
free(buf);
#endif
return EXIT_SUCCESS;
default:
bb_show_usage();
}
}
if (optind == argc)
bb_show_usage();
for (n = optind; n < argc; n++) {
if (syscall(__NR_delete_module, argv[n], flags) < 0) {
bb_perror_msg("%s", argv[n]);
ret = EXIT_FAILURE;
}
}
return(ret);
}
extern int rmmod_main(int argc, char **argv)
{
int n, ret = EXIT_SUCCESS;
unsigned int flags = O_NONBLOCK|O_EXCL;
#ifdef CONFIG_FEATURE_QUERY_MODULE_INTERFACE
/* bb_common_bufsiz1 hold the module names which we ignore
but must get */
size_t bufsize = sizeof(bb_common_bufsiz1);
#endif
/* Parse command line. */
n = bb_getopt_ulflags(argc, argv, "wfa");
if((n & 1)) // --wait
flags &= ~O_NONBLOCK;
if((n & 2)) // --force
flags |= O_TRUNC;
if((n & 4)) {
/* Unload _all_ unused modules via NULL delete_module() call */
/* until the number of modules does not change */
size_t nmod = 0; /* number of modules */
size_t pnmod = -1; /* previous number of modules */
while (nmod != pnmod) {
if (syscall(__NR_delete_module, NULL, flags) != 0) {
if (errno==EFAULT)
return(ret);
bb_perror_msg_and_die("rmmod");
}
pnmod = nmod;
#ifdef CONFIG_FEATURE_QUERY_MODULE_INTERFACE
/* 1 == QM_MODULES */
if (my_query_module(NULL, 1, &bb_common_bufsiz1, &bufsize, &nmod)) {
bb_perror_msg_and_die("QM_MODULES");
}
#endif
}
return EXIT_SUCCESS;
}
if (optind == argc)
bb_show_usage();
for (n = optind; n < argc; n++) {
#ifdef CONFIG_FEATURE_2_6_MODULES
const char *afterslash;
char *module_name;
afterslash = strrchr(argv[n], '/');
if (!afterslash)
afterslash = argv[n];
else
afterslash++;
module_name = alloca(strlen(afterslash) + 1);
filename2modname(module_name, afterslash);
#else
#define module_name argv[n]
#endif
if (syscall(__NR_delete_module, module_name, flags) != 0) {
bb_perror_msg("%s", argv[n]);
ret = EXIT_FAILURE;
}
}
return(ret);
}
