mirror of
https://github.com/sheumann/hush.git
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779 lines
21 KiB
C
779 lines
21 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* simplified modprobe
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*
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* Copyright (c) 2008 Vladimir Dronnikov
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* Copyright (c) 2008 Bernhard Fischer (initial depmod code)
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*
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* Licensed under GPLv2, see file LICENSE in this tarball for details.
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*/
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#include "libbb.h"
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#include <sys/utsname.h> /* uname() */
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#include <fnmatch.h>
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extern int init_module(void *module, unsigned long len, const char *options);
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extern int delete_module(const char *module, unsigned flags);
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extern int query_module(const char *name, int which, void *buf, size_t bufsize, size_t *ret);
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#define dbg1_error_msg(...) ((void)0)
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#define dbg2_error_msg(...) ((void)0)
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//#define dbg1_error_msg(...) bb_error_msg(__VA_ARGS__)
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//#define dbg2_error_msg(...) bb_error_msg(__VA_ARGS__)
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#define DEPFILE_BB CONFIG_DEFAULT_DEPMOD_FILE".bb"
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enum {
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OPT_q = (1 << 0), /* be quiet */
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OPT_r = (1 << 1), /* module removal instead of loading */
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};
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typedef struct module_info {
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char *pathname;
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char *aliases;
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char *deps;
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} module_info;
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/*
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* GLOBALS
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*/
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struct globals {
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module_info *modinfo;
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char *module_load_options;
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smallint dep_bb_seen;
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smallint wrote_dep_bb_ok;
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int module_count;
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int module_found_idx;
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int stringbuf_idx;
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char stringbuf[32 * 1024]; /* some modules have lots of stuff */
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/* for example, drivers/media/video/saa7134/saa7134.ko */
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};
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#define G (*ptr_to_globals)
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#define modinfo (G.modinfo )
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#define dep_bb_seen (G.dep_bb_seen )
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#define wrote_dep_bb_ok (G.wrote_dep_bb_ok )
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#define module_count (G.module_count )
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#define module_found_idx (G.module_found_idx )
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#define module_load_options (G.module_load_options)
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#define stringbuf_idx (G.stringbuf_idx )
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#define stringbuf (G.stringbuf )
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#define INIT_G() do { \
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SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \
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} while (0)
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static void appendc(char c)
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{
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if (stringbuf_idx < sizeof(stringbuf))
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stringbuf[stringbuf_idx++] = c;
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}
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static void bksp(void)
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{
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if (stringbuf_idx)
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stringbuf_idx--;
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}
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static void append(const char *s)
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{
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size_t len = strlen(s);
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if (stringbuf_idx + len < sizeof(stringbuf)) {
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memcpy(stringbuf + stringbuf_idx, s, len);
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stringbuf_idx += len;
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}
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}
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static void reset_stringbuf(void)
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{
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stringbuf_idx = 0;
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}
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static char* copy_stringbuf(void)
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{
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char *copy = xmalloc(stringbuf_idx);
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return memcpy(copy, stringbuf, stringbuf_idx);
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}
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static char* find_keyword(char *ptr, size_t len, const char *word)
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{
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int wlen;
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if (!ptr) /* happens if read_module cannot read it */
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return NULL;
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wlen = strlen(word);
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len -= wlen - 1;
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while ((ssize_t)len > 0) {
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char *old = ptr;
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/* search for the first char in word */
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ptr = memchr(ptr, *word, len);
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if (ptr == NULL) /* no occurance left, done */
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break;
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if (strncmp(ptr, word, wlen) == 0)
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return ptr + wlen; /* found, return ptr past it */
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++ptr;
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len -= (ptr - old);
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}
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return NULL;
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}
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static void replace(char *s, char what, char with)
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{
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while (*s) {
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if (what == *s)
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*s = with;
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++s;
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}
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}
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/* Take "word word", return malloced "word",NUL,"word",NUL,NUL */
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static char* str_2_list(const char *str)
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{
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int len = strlen(str) + 1;
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char *dst = xmalloc(len + 1);
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dst[len] = '\0';
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memcpy(dst, str, len);
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//TODO: protect against 2+ spaces: "word word"
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replace(dst, ' ', '\0');
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return dst;
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}
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#if ENABLE_FEATURE_MODPROBE_SMALL_ZIPPED
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# define read_module xmalloc_open_zipped_read_close
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#else
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# define read_module xmalloc_open_read_close
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#endif
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/* We use error numbers in a loose translation... */
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static const char *moderror(int err)
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{
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switch (err) {
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case ENOEXEC:
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return "invalid module format";
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case ENOENT:
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return "unknown symbol in module or invalid parameter";
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case ESRCH:
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return "module has wrong symbol version";
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case EINVAL: /* "invalid parameter" */
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return "unknown symbol in module or invalid parameter"
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+ sizeof("unknown symbol in module or");
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default:
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return strerror(err);
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}
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}
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static int load_module(const char *fname, const char *options)
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{
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#if 1
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int r;
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size_t len = MAXINT(ssize_t);
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char *module_image;
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dbg1_error_msg("load_module('%s','%s')", fname, options);
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module_image = read_module(fname, &len);
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r = (!module_image || init_module(module_image, len, options ? options : "") != 0);
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free(module_image);
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dbg1_error_msg("load_module:%d", r);
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return r; /* 0 = success */
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#else
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/* For testing */
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dbg1_error_msg("load_module('%s','%s')", fname, options);
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return 1;
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#endif
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}
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static void parse_module(module_info *info, const char *pathname)
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{
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char *module_image;
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char *ptr;
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size_t len;
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size_t pos;
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dbg1_error_msg("parse_module('%s')", pathname);
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/* Read (possibly compressed) module */
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len = 64 * 1024 * 1024; /* 64 Mb at most */
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module_image = read_module(pathname, &len);
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//TODO: optimize redundant module body reads
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/* "alias1 symbol:sym1 alias2 symbol:sym2" */
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reset_stringbuf();
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pos = 0;
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while (1) {
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ptr = find_keyword(module_image + pos, len - pos, "alias=");
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if (!ptr) {
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ptr = find_keyword(module_image + pos, len - pos, "__ksymtab_");
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if (!ptr)
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break;
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/* DOCME: __ksymtab_gpl and __ksymtab_strings occur
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* in many modules. What do they mean? */
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if (strcmp(ptr, "gpl") == 0 || strcmp(ptr, "strings") == 0)
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goto skip;
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dbg2_error_msg("alias:'symbol:%s'", ptr);
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append("symbol:");
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} else {
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dbg2_error_msg("alias:'%s'", ptr);
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}
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append(ptr);
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appendc(' ');
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skip:
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pos = (ptr - module_image);
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}
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bksp(); /* remove last ' ' */
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appendc('\0');
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info->aliases = copy_stringbuf();
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/* "dependency1 depandency2" */
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reset_stringbuf();
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ptr = find_keyword(module_image, len, "depends=");
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if (ptr && *ptr) {
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replace(ptr, ',', ' ');
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replace(ptr, '-', '_');
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dbg2_error_msg("dep:'%s'", ptr);
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append(ptr);
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}
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appendc('\0');
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info->deps = copy_stringbuf();
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free(module_image);
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}
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static int pathname_matches_modname(const char *pathname, const char *modname)
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{
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const char *fname = bb_get_last_path_component_nostrip(pathname);
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const char *suffix = strrstr(fname, ".ko");
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//TODO: can do without malloc?
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char *name = xstrndup(fname, suffix - fname);
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int r;
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replace(name, '-', '_');
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r = (strcmp(name, modname) == 0);
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free(name);
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return r;
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}
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static FAST_FUNC int fileAction(const char *pathname,
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struct stat *sb UNUSED_PARAM,
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void *modname_to_match,
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int depth UNUSED_PARAM)
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{
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int cur;
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const char *fname;
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pathname += 2; /* skip "./" */
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fname = bb_get_last_path_component_nostrip(pathname);
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if (!strrstr(fname, ".ko")) {
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dbg1_error_msg("'%s' is not a module", pathname);
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return TRUE; /* not a module, continue search */
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}
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cur = module_count++;
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modinfo = xrealloc_vector(modinfo, 12, cur);
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modinfo[cur].pathname = xstrdup(pathname);
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/*modinfo[cur].aliases = NULL; - xrealloc_vector did it */
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/*modinfo[cur+1].pathname = NULL;*/
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if (!pathname_matches_modname(fname, modname_to_match)) {
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dbg1_error_msg("'%s' module name doesn't match", pathname);
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return TRUE; /* module name doesn't match, continue search */
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}
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dbg1_error_msg("'%s' module name matches", pathname);
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module_found_idx = cur;
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parse_module(&modinfo[cur], pathname);
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if (!(option_mask32 & OPT_r)) {
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if (load_module(pathname, module_load_options) == 0) {
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/* Load was successful, there is nothing else to do.
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* This can happen ONLY for "top-level" module load,
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* not a dep, because deps dont do dirscan. */
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exit(EXIT_SUCCESS);
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}
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}
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return TRUE;
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}
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static int load_dep_bb(void)
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{
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char *line;
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FILE *fp = fopen_for_read(DEPFILE_BB);
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if (!fp)
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return 0;
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dep_bb_seen = 1;
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dbg1_error_msg("loading "DEPFILE_BB);
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/* Why? There is a rare scenario: we did not find modprobe.dep.bb,
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* we scanned the dir and found no module by name, then we search
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* for alias (full scan), and we decided to generate modprobe.dep.bb.
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* But we see modprobe.dep.bb.new! Other modprobe is at work!
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* We wait and other modprobe renames it to modprobe.dep.bb.
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* Now we can use it.
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* But we already have modinfo[] filled, and "module_count = 0"
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* makes us start anew. Yes, we leak modinfo[].xxx pointers -
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* there is not much of data there anyway. */
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module_count = 0;
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memset(&modinfo[0], 0, sizeof(modinfo[0]));
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while ((line = xmalloc_fgetline(fp)) != NULL) {
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char* space;
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int cur;
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if (!line[0]) {
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free(line);
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continue;
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}
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space = strchrnul(line, ' ');
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cur = module_count++;
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modinfo = xrealloc_vector(modinfo, 12, cur);
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/*modinfo[cur+1].pathname = NULL; - xrealloc_vector did it */
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modinfo[cur].pathname = line; /* we take ownership of malloced block here */
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if (*space)
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*space++ = '\0';
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modinfo[cur].aliases = space;
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modinfo[cur].deps = xmalloc_fgetline(fp) ? : xzalloc(1);
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if (modinfo[cur].deps[0]) {
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/* deps are not "", so next line must be empty */
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line = xmalloc_fgetline(fp);
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/* Refuse to work with damaged config file */
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if (line && line[0])
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bb_error_msg_and_die("error in %s at '%s'", DEPFILE_BB, line);
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free(line);
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}
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}
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return 1;
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}
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static int start_dep_bb_writeout(void)
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{
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int fd;
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/* depmod -n: write result to stdout */
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if (applet_name[0] == 'd' && (option_mask32 & 1))
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return STDOUT_FILENO;
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fd = open(DEPFILE_BB".new", O_WRONLY | O_CREAT | O_TRUNC | O_EXCL, 0644);
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if (fd < 0) {
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if (errno == EEXIST) {
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int count = 5 * 20;
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dbg1_error_msg(DEPFILE_BB".new exists, waiting for "DEPFILE_BB);
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while (1) {
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usleep(1000*1000 / 20);
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if (load_dep_bb()) {
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dbg1_error_msg(DEPFILE_BB" appeared");
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return -2; /* magic number */
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}
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if (!--count)
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break;
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}
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bb_error_msg("deleting stale %s", DEPFILE_BB".new");
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fd = open_or_warn(DEPFILE_BB".new", O_WRONLY | O_CREAT | O_TRUNC);
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}
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}
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dbg1_error_msg("opened "DEPFILE_BB".new:%d", fd);
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return fd;
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}
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static void write_out_dep_bb(int fd)
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{
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int i;
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FILE *fp;
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/* We want good error reporting. fdprintf is not good enough. */
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fp = fdopen(fd, "w");
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if (!fp) {
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close(fd);
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goto err;
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}
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i = 0;
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while (modinfo[i].pathname) {
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fprintf(fp, "%s%s%s\n" "%s%s\n",
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modinfo[i].pathname, modinfo[i].aliases[0] ? " " : "", modinfo[i].aliases,
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modinfo[i].deps, modinfo[i].deps[0] ? "\n" : "");
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i++;
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}
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/* Badly formatted depfile is a no-no. Be paranoid. */
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errno = 0;
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if (ferror(fp) | fclose(fp)) /* | instead of || is intended */
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goto err;
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if (fd == STDOUT_FILENO) /* it was depmod -n */
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goto ok;
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if (rename(DEPFILE_BB".new", DEPFILE_BB) != 0) {
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err:
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bb_perror_msg("can't create %s", DEPFILE_BB);
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unlink(DEPFILE_BB".new");
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} else {
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ok:
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wrote_dep_bb_ok = 1;
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dbg1_error_msg("created "DEPFILE_BB);
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}
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}
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static module_info* find_alias(const char *alias)
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{
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int i;
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int dep_bb_fd;
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module_info *result;
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dbg1_error_msg("find_alias('%s')", alias);
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try_again:
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/* First try to find by name (cheaper) */
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i = 0;
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while (modinfo[i].pathname) {
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if (pathname_matches_modname(modinfo[i].pathname, alias)) {
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dbg1_error_msg("found '%s' in module '%s'",
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alias, modinfo[i].pathname);
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if (!modinfo[i].aliases) {
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parse_module(&modinfo[i], modinfo[i].pathname);
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}
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return &modinfo[i];
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}
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i++;
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}
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/* Ok, we definitely have to scan module bodies. This is a good
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* moment to generate modprobe.dep.bb, if it does not exist yet */
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dep_bb_fd = dep_bb_seen ? -1 : start_dep_bb_writeout();
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if (dep_bb_fd == -2) /* modprobe.dep.bb appeared? */
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goto try_again;
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/* Scan all module bodies, extract modinfo (it contains aliases) */
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i = 0;
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result = NULL;
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while (modinfo[i].pathname) {
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char *desc, *s;
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if (!modinfo[i].aliases) {
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parse_module(&modinfo[i], modinfo[i].pathname);
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}
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if (result)
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continue;
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/* "alias1 symbol:sym1 alias2 symbol:sym2" */
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desc = str_2_list(modinfo[i].aliases);
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/* Does matching substring exist? */
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for (s = desc; *s; s += strlen(s) + 1) {
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/* Aliases in module bodies can be defined with
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* shell patterns. Example:
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* "pci:v000010DEd000000D9sv*sd*bc*sc*i*".
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* Plain strcmp() won't catch that */
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if (fnmatch(s, alias, 0) == 0) {
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dbg1_error_msg("found alias '%s' in module '%s'",
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alias, modinfo[i].pathname);
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result = &modinfo[i];
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break;
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}
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}
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free(desc);
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if (result && dep_bb_fd < 0)
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return result;
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i++;
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}
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/* Create module.dep.bb if needed */
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if (dep_bb_fd >= 0) {
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write_out_dep_bb(dep_bb_fd);
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}
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dbg1_error_msg("find_alias '%s' returns %p", alias, result);
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return result;
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}
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#if ENABLE_FEATURE_MODPROBE_SMALL_CHECK_ALREADY_LOADED
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// TODO: open only once, invent config_rewind()
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static int already_loaded(const char *name)
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{
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int ret = 0;
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char *s;
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parser_t *parser = config_open2("/proc/modules", xfopen_for_read);
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while (config_read(parser, &s, 1, 1, "# \t", PARSE_NORMAL & ~PARSE_GREEDY)) {
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if (strcmp(s, name) == 0) {
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ret = 1;
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break;
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}
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}
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config_close(parser);
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return ret;
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}
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#else
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#define already_loaded(name) is_rmmod
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#endif
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/*
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* Given modules definition and module name (or alias, or symbol)
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* load/remove the module respecting dependencies.
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* NB: also called by depmod with bogus name "/",
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* just in order to force modprobe.dep.bb creation.
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*/
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#if !ENABLE_FEATURE_MODPROBE_SMALL_OPTIONS_ON_CMDLINE
|
|
#define process_module(a,b) process_module(a)
|
|
#define cmdline_options ""
|
|
#endif
|
|
static void process_module(char *name, const char *cmdline_options)
|
|
{
|
|
char *s, *deps, *options;
|
|
module_info *info;
|
|
int is_rmmod = (option_mask32 & OPT_r) != 0;
|
|
dbg1_error_msg("process_module('%s','%s')", name, cmdline_options);
|
|
|
|
replace(name, '-', '_');
|
|
|
|
dbg1_error_msg("already_loaded:%d is_rmmod:%d", already_loaded(name), is_rmmod);
|
|
if (already_loaded(name) != is_rmmod) {
|
|
dbg1_error_msg("nothing to do for '%s'", name);
|
|
return;
|
|
}
|
|
|
|
options = NULL;
|
|
if (!is_rmmod) {
|
|
char *opt_filename = xasprintf("/etc/modules/%s", name);
|
|
options = xmalloc_open_read_close(opt_filename, NULL);
|
|
if (options)
|
|
replace(options, '\n', ' ');
|
|
#if ENABLE_FEATURE_MODPROBE_SMALL_OPTIONS_ON_CMDLINE
|
|
if (cmdline_options) {
|
|
/* NB: cmdline_options always have one leading ' '
|
|
* (see main()), we remove it here */
|
|
char *op = xasprintf(options ? "%s %s" : "%s %s" + 3,
|
|
cmdline_options + 1, options);
|
|
free(options);
|
|
options = op;
|
|
}
|
|
#endif
|
|
free(opt_filename);
|
|
module_load_options = options;
|
|
dbg1_error_msg("process_module('%s'): options:'%s'", name, options);
|
|
}
|
|
|
|
if (!module_count) {
|
|
/* Scan module directory. This is done only once.
|
|
* It will attempt module load, and will exit(EXIT_SUCCESS)
|
|
* on success. */
|
|
module_found_idx = -1;
|
|
recursive_action(".",
|
|
ACTION_RECURSE, /* flags */
|
|
fileAction, /* file action */
|
|
NULL, /* dir action */
|
|
name, /* user data */
|
|
0); /* depth */
|
|
dbg1_error_msg("dirscan complete");
|
|
/* Module was not found, or load failed, or is_rmmod */
|
|
if (module_found_idx >= 0) { /* module was found */
|
|
info = &modinfo[module_found_idx];
|
|
} else { /* search for alias, not a plain module name */
|
|
info = find_alias(name);
|
|
}
|
|
} else {
|
|
info = find_alias(name);
|
|
}
|
|
|
|
/* rmmod? unload it by name */
|
|
if (is_rmmod) {
|
|
if (delete_module(name, O_NONBLOCK | O_EXCL) != 0
|
|
&& !(option_mask32 & OPT_q)
|
|
) {
|
|
bb_perror_msg("remove '%s'", name);
|
|
goto ret;
|
|
}
|
|
/* N.B. we do not stop here -
|
|
* continue to unload modules on which the module depends:
|
|
* "-r --remove: option causes modprobe to remove a module.
|
|
* If the modules it depends on are also unused, modprobe
|
|
* will try to remove them, too." */
|
|
}
|
|
|
|
if (!info) {
|
|
/* both dirscan and find_alias found nothing */
|
|
if (applet_name[0] != 'd') /* it wasn't depmod */
|
|
bb_error_msg("module '%s' not found", name);
|
|
//TODO: _and_die()?
|
|
goto ret;
|
|
}
|
|
|
|
/* Iterate thru dependencies, trying to (un)load them */
|
|
deps = str_2_list(info->deps);
|
|
for (s = deps; *s; s += strlen(s) + 1) {
|
|
//if (strcmp(name, s) != 0) // N.B. do loops exist?
|
|
dbg1_error_msg("recurse on dep '%s'", s);
|
|
process_module(s, NULL);
|
|
dbg1_error_msg("recurse on dep '%s' done", s);
|
|
}
|
|
free(deps);
|
|
|
|
/* insmod -> load it */
|
|
if (!is_rmmod) {
|
|
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",
|
|
info->pathname,
|
|
moderror(errno));
|
|
}
|
|
}
|
|
}
|
|
ret:
|
|
free(options);
|
|
//TODO: return load attempt result from process_module.
|
|
//If dep didn't load ok, continuing makes little sense.
|
|
}
|
|
#undef cmdline_options
|
|
|
|
|
|
/* For reference, module-init-tools v3.4 options:
|
|
|
|
# insmod
|
|
Usage: insmod filename [args]
|
|
|
|
# rmmod --help
|
|
Usage: rmmod [-fhswvV] modulename ...
|
|
-f (or --force) forces a module unload, and may crash your
|
|
machine. This requires the Forced Module Removal option
|
|
when the kernel was compiled.
|
|
-h (or --help) prints this help text
|
|
-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 module removal even if it is used
|
|
and will stop new users from accessing the module (so it
|
|
should eventually fall to zero).
|
|
|
|
# modprobe
|
|
Usage: modprobe [-v] [-V] [-C config-file] [-n] [-i] [-q] [-b]
|
|
[-o <modname>] [ --dump-modversions ] <modname> [parameters...]
|
|
modprobe -r [-n] [-i] [-v] <modulename> ...
|
|
modprobe -l -t <dirname> [ -a <modulename> ...]
|
|
|
|
# depmod --help
|
|
depmod 3.4 -- part of module-init-tools
|
|
depmod -[aA] [-n -e -v -q -V -r -u]
|
|
[-b basedirectory] [forced_version]
|
|
depmod [-n -e -v -q -r -u] [-F kernelsyms] module1.ko module2.ko ...
|
|
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
|
|
The following options are useful for people managing distributions:
|
|
-b basedirectory
|
|
--basedir basedirectory
|
|
Use an image of a module tree
|
|
-F kernelsyms
|
|
--filesyms kernelsyms
|
|
Use the file instead of the current kernel symbols
|
|
*/
|
|
|
|
int modprobe_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
|
int modprobe_main(int argc UNUSED_PARAM, char **argv)
|
|
{
|
|
struct utsname uts;
|
|
char applet0 = applet_name[0];
|
|
USE_FEATURE_MODPROBE_SMALL_OPTIONS_ON_CMDLINE(char *options;)
|
|
|
|
/* are we lsmod? -> just dump /proc/modules */
|
|
if ('l' == applet0) {
|
|
xprint_and_close_file(xfopen_for_read("/proc/modules"));
|
|
return EXIT_SUCCESS;
|
|
}
|
|
|
|
INIT_G();
|
|
|
|
/* Prevent ugly corner cases with no modules at all */
|
|
modinfo = xzalloc(sizeof(modinfo[0]));
|
|
|
|
/* Goto modules directory */
|
|
xchdir(CONFIG_DEFAULT_MODULES_DIR);
|
|
uname(&uts); /* never fails */
|
|
|
|
/* depmod? */
|
|
if ('d' == applet0) {
|
|
/* Supported:
|
|
* -n: print result to stdout
|
|
* -a: process all modules (default)
|
|
* optional VERSION parameter
|
|
* Ignored:
|
|
* -A: do work only if a module is newer than depfile
|
|
* -e: report any symbols which a module needs
|
|
* which are not supplied by other modules or the kernel
|
|
* -F FILE: System.map (symbols for -e)
|
|
* -q, -r, -u: noop?
|
|
* Not supported:
|
|
* -b BASEDIR: (TODO!) modules are in
|
|
* $BASEDIR/lib/modules/$VERSION
|
|
* -v: human readable deps to stdout
|
|
* -V: version (don't want to support it - people may depend
|
|
* on it as an indicator of "standard" depmod)
|
|
* -h: help (well duh)
|
|
* module1.o module2.o parameters (just ignored for now)
|
|
*/
|
|
getopt32(argv, "na" "AeF:qru" /* "b:vV", NULL */, NULL);
|
|
argv += optind;
|
|
/* if (argv[0] && argv[1]) bb_show_usage(); */
|
|
/* Goto $VERSION directory */
|
|
xchdir(argv[0] ? argv[0] : uts.release);
|
|
/* Force full module scan by asking to find a bogus module.
|
|
* This will generate modules.dep.bb as a side effect. */
|
|
process_module((char*)"/", NULL);
|
|
return !wrote_dep_bb_ok;
|
|
}
|
|
|
|
/* insmod, modprobe, rmmod require at least one argument */
|
|
opt_complementary = "-1";
|
|
/* only -q (quiet) and -r (rmmod),
|
|
* the rest are accepted and ignored (compat) */
|
|
getopt32(argv, "qrfsvw");
|
|
argv += optind;
|
|
|
|
/* are we rmmod? -> simulate modprobe -r */
|
|
if ('r' == applet0) {
|
|
option_mask32 |= OPT_r;
|
|
}
|
|
|
|
/* 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.
|
|
* insmod/modprobe takes one module name, the rest are parameters. */
|
|
options = NULL;
|
|
if ('r' != applet0) {
|
|
char **arg = argv;
|
|
while (*++arg) {
|
|
/* Enclose options in quotes */
|
|
char *s = options;
|
|
options = xasprintf("%s \"%s\"", s ? s : "", *arg);
|
|
free(s);
|
|
*arg = NULL;
|
|
}
|
|
}
|
|
#else
|
|
if ('r' != applet0)
|
|
argv[1] = NULL;
|
|
#endif
|
|
|
|
/* Try to load modprobe.dep.bb */
|
|
load_dep_bb();
|
|
|
|
/* Load/remove modules.
|
|
* Only rmmod loops here, insmod/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);)
|
|
}
|
|
return EXIT_SUCCESS;
|
|
}
|