* simplified modprobe
*
* Copyright (c) 2008 Vladimir Dronnikov
- * Copyright (c) 2008 Bernhard Fischer (initial depmod code)
+ * Copyright (c) 2008 Bernhard Reutner-Fischer (initial depmod code)
*
* Licensed under GPLv2, see file LICENSE in this tarball for details.
*/
{
int wlen;
- if (!ptr) /* happens if read_module cannot read it */
+ if (!ptr) /* happens if xmalloc_open_zipped_read_close cannot read it */
return NULL;
wlen = strlen(word);
return dst;
}
-#if ENABLE_FEATURE_MODPROBE_SMALL_ZIPPED
-# define read_module xmalloc_open_zipped_read_close
-#else
-# define read_module xmalloc_open_read_close
-#endif
-
/* We use error numbers in a loose translation... */
static const char *moderror(int err)
{
char *module_image;
dbg1_error_msg("load_module('%s','%s')", fname, options);
- module_image = read_module(fname, &len);
+ module_image = xmalloc_open_zipped_read_close(fname, &len);
r = (!module_image || init_module(module_image, len, options ? options : "") != 0);
free(module_image);
dbg1_error_msg("load_module:%d", r);
/* Read (possibly compressed) module */
len = 64 * 1024 * 1024; /* 64 Mb at most */
- module_image = read_module(pathname, &len);
+ module_image = xmalloc_open_zipped_read_close(pathname, &len);
//TODO: optimize redundant module body reads
/* "alias1 symbol:sym1 alias2 symbol:sym2" */
cur = module_count++;
modinfo = xrealloc_vector(modinfo, 12, cur);
-//TODO: use zeroing version of xrealloc_vector?
modinfo[cur].pathname = xstrdup(pathname);
- modinfo[cur].aliases = NULL;
- modinfo[cur+1].pathname = NULL;
+ /*modinfo[cur].aliases = NULL; - xrealloc_vector did it */
+ /*modinfo[cur+1].pathname = NULL;*/
if (!pathname_matches_modname(fname, modname_to_match)) {
dbg1_error_msg("'%s' module name doesn't match", pathname);
space = strchrnul(line, ' ');
cur = module_count++;
modinfo = xrealloc_vector(modinfo, 12, cur);
-//TODO: use zeroing version of xrealloc_vector?
- modinfo[cur+1].pathname = NULL;
+ /*modinfo[cur+1].pathname = NULL; - xrealloc_vector did it */
modinfo[cur].pathname = line; /* we take ownership of malloced block here */
if (*space)
*space++ = '\0';
if (!modinfo[i].aliases) {
parse_module(&modinfo[i], modinfo[i].pathname);
}
- if (result)
+ if (result) {
+ i++;
continue;
+ }
/* "alias1 symbol:sym1 alias2 symbol:sym2" */
desc = str_2_list(modinfo[i].aliases);
/* Does matching substring exist? */
}
#if ENABLE_FEATURE_MODPROBE_SMALL_CHECK_ALREADY_LOADED
+// TODO: open only once, invent config_rewind()
static int already_loaded(const char *name)
{
int ret = 0;
- int len = strlen(name);
- char *line;
- FILE* modules;
-
- modules = xfopen_for_read("/proc/modules");
- while ((line = xmalloc_fgets(modules)) != NULL) {
- if (strncmp(line, name, len) == 0 && line[len] == ' ') {
- free(line);
+ char *s;
+ parser_t *parser = config_open2("/proc/modules", xfopen_for_read);
+ while (config_read(parser, &s, 1, 1, "# \t", PARSE_NORMAL & ~PARSE_GREEDY)) {
+ if (strcmp(s, name) == 0) {
ret = 1;
break;
}
- free(line);
}
- fclose(modules);
+ config_close(parser);
return ret;
}
#else
}
free(deps);
- /* insmod -> load it */
+ /* modprobe -> load it */
if (!is_rmmod) {
- errno = 0;
- if (load_module(info->pathname, options) != 0) {
- if (EEXIST != errno) {
- bb_error_msg("'%s': %s",
+ if (!options || strstr(options, "blacklist") == NULL) {
+ errno = 0;
+ if (load_module(info->pathname, options) != 0) {
+ if (EEXIST != errno) {
+ bb_error_msg("'%s': %s",
info->pathname,
moderror(errno));
- } else {
- dbg1_error_msg("'%s': %s",
+ } else {
+ dbg1_error_msg("'%s': %s",
info->pathname,
moderror(errno));
+ }
}
+ } else {
+ dbg1_error_msg("'%s': blacklisted", info->pathname);
}
}
ret:
-s (or --syslog) says use syslog, not stderr
-v (or --verbose) enables more messages
-V (or --version) prints the version code
- -w (or --wait) begins a module removal even if it is used
+ -w (or --wait) begins module removal even if it is used
and will stop new users from accessing the module (so it
should eventually fall to zero).
If no arguments (except options) are given, "depmod -a" is assumed.
depmod will output a dependancy list suitable for the modprobe utility.
Options:
- -a, --all Probe all modules
- -A, --quick Only does the work if there's a new module
- -n, --show Write the dependency file on stdout only
- -e, --errsyms Report not supplied symbols
- -V, --version Print the release version
- -v, --verbose Enable verbose mode
- -h, --help Print this usage message
+ -a, --all Probe all modules
+ -A, --quick Only does the work if there's a new module
+ -n, --show Write the dependency file on stdout only
+ -e, --errsyms Report not supplied symbols
+ -V, --version Print the release version
+ -v, --verbose Enable verbose mode
+ -h, --help Print this usage message
The following options are useful for people managing distributions:
-b basedirectory
- --basedir basedirectory Use an image of a module tree.
+ --basedir basedirectory
+ Use an image of a module tree
-F kernelsyms
- --filesyms kernelsyms Use the file instead of the
- current kernel symbols.
+ --filesyms kernelsyms
+ Use the file instead of the current kernel symbols
*/
int modprobe_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
{
struct utsname uts;
char applet0 = applet_name[0];
- USE_FEATURE_MODPROBE_SMALL_OPTIONS_ON_CMDLINE(char *options;)
+ IF_FEATURE_MODPROBE_SMALL_OPTIONS_ON_CMDLINE(char *options;)
/* are we lsmod? -> just dump /proc/modules */
if ('l' == applet0) {
/* Prevent ugly corner cases with no modules at all */
modinfo = xzalloc(sizeof(modinfo[0]));
- /* Goto modules directory */
- xchdir(CONFIG_DEFAULT_MODULES_DIR);
+ if ('i' != applet0) { /* not insmod */
+ /* Goto modules directory */
+ xchdir(CONFIG_DEFAULT_MODULES_DIR);
+ }
uname(&uts); /* never fails */
/* depmod? */
option_mask32 |= OPT_r;
}
- /* Goto $VERSION directory */
- xchdir(uts.release);
+ if ('i' != applet0) { /* not insmod */
+ /* Goto $VERSION directory */
+ xchdir(uts.release);
+ }
#if ENABLE_FEATURE_MODPROBE_SMALL_OPTIONS_ON_CMDLINE
/* If not rmmod, parse possible module options given on command line.
argv[1] = NULL;
#endif
+ if ('i' == applet0) { /* insmod */
+ size_t len;
+ void *map;
+
+ len = MAXINT(ssize_t);
+ map = xmalloc_xopen_read_close(*argv, &len);
+ if (init_module(map, len,
+ IF_FEATURE_MODPROBE_SMALL_OPTIONS_ON_CMDLINE(options ? options : "")
+ IF_NOT_FEATURE_MODPROBE_SMALL_OPTIONS_ON_CMDLINE("")
+ ) != 0)
+ bb_error_msg_and_die("can't insert '%s': %s",
+ *argv, moderror(errno));
+ return 0;
+ }
+
/* Try to load modprobe.dep.bb */
load_dep_bb();
/* Load/remove modules.
- * Only rmmod loops here, insmod/modprobe has only argv[0] */
+ * Only rmmod loops here, modprobe has only argv[0] */
do {
process_module(*argv++, options);
} while (*argv);
if (ENABLE_FEATURE_CLEAN_UP) {
- USE_FEATURE_MODPROBE_SMALL_OPTIONS_ON_CMDLINE(free(options);)
+ IF_FEATURE_MODPROBE_SMALL_OPTIONS_ON_CMDLINE(free(options);)
}
return EXIT_SUCCESS;
}
projects / oweals / busybox.git / blobdiff