[2725] | 1 | /* vi: set sw=4 ts=4: */
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| 2 | /*
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| 3 | * simplified modprobe
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| 4 | *
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| 5 | * Copyright (c) 2008 Vladimir Dronnikov
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| 6 | * Copyright (c) 2008 Bernhard Reutner-Fischer (initial depmod code)
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| 7 | *
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| 8 | * Licensed under GPLv2, see file LICENSE in this source tree.
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| 9 | */
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| 10 |
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[3232] | 11 | //applet:IF_MODPROBE_SMALL(APPLET(modprobe, BB_DIR_SBIN, BB_SUID_DROP))
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[3621] | 12 | //applet:IF_MODPROBE_SMALL(APPLET_ODDNAME(depmod, modprobe, BB_DIR_SBIN, BB_SUID_DROP, depmod))
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| 13 | //applet:IF_MODPROBE_SMALL(APPLET_ODDNAME(insmod, modprobe, BB_DIR_SBIN, BB_SUID_DROP, insmod))
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| 14 | //applet:IF_MODPROBE_SMALL(APPLET_ODDNAME(lsmod, modprobe, BB_DIR_SBIN, BB_SUID_DROP, lsmod))
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| 15 | //applet:IF_MODPROBE_SMALL(APPLET_ODDNAME(rmmod, modprobe, BB_DIR_SBIN, BB_SUID_DROP, rmmod))
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[2725] | 16 |
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| 17 | #include "libbb.h"
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| 18 | /* After libbb.h, since it needs sys/types.h on some systems */
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| 19 | #include <sys/utsname.h> /* uname() */
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| 20 | #include <fnmatch.h>
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| 21 |
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| 22 | extern int init_module(void *module, unsigned long len, const char *options);
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| 23 | extern int delete_module(const char *module, unsigned flags);
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[3621] | 24 | /* linux/include/linux/module.h has limit of 64 chars on module names */
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| 25 | #undef MODULE_NAME_LEN
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| 26 | #define MODULE_NAME_LEN 64
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[2725] | 27 |
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| 28 |
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| 29 | #if 1
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| 30 | # define dbg1_error_msg(...) ((void)0)
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| 31 | # define dbg2_error_msg(...) ((void)0)
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| 32 | #else
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| 33 | # define dbg1_error_msg(...) bb_error_msg(__VA_ARGS__)
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| 34 | # define dbg2_error_msg(...) bb_error_msg(__VA_ARGS__)
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| 35 | #endif
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| 36 |
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| 37 | #define DEPFILE_BB CONFIG_DEFAULT_DEPMOD_FILE".bb"
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| 38 |
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| 39 | enum {
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| 40 | OPT_q = (1 << 0), /* be quiet */
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| 41 | OPT_r = (1 << 1), /* module removal instead of loading */
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| 42 | };
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| 43 |
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| 44 | typedef struct module_info {
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| 45 | char *pathname;
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| 46 | char *aliases;
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| 47 | char *deps;
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[3621] | 48 | smallint open_read_failed;
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[2725] | 49 | } module_info;
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| 50 |
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| 51 | /*
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| 52 | * GLOBALS
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| 53 | */
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| 54 | struct globals {
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| 55 | module_info *modinfo;
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| 56 | char *module_load_options;
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| 57 | smallint dep_bb_seen;
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| 58 | smallint wrote_dep_bb_ok;
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| 59 | unsigned module_count;
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| 60 | int module_found_idx;
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| 61 | unsigned stringbuf_idx;
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| 62 | unsigned stringbuf_size;
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| 63 | char *stringbuf; /* some modules have lots of stuff */
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| 64 | /* for example, drivers/media/video/saa7134/saa7134.ko */
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| 65 | /* therefore having a fixed biggish buffer is not wise */
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| 66 | };
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| 67 | #define G (*ptr_to_globals)
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| 68 | #define modinfo (G.modinfo )
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| 69 | #define dep_bb_seen (G.dep_bb_seen )
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| 70 | #define wrote_dep_bb_ok (G.wrote_dep_bb_ok )
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| 71 | #define module_count (G.module_count )
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| 72 | #define module_found_idx (G.module_found_idx )
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| 73 | #define module_load_options (G.module_load_options)
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| 74 | #define stringbuf_idx (G.stringbuf_idx )
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| 75 | #define stringbuf_size (G.stringbuf_size )
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| 76 | #define stringbuf (G.stringbuf )
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| 77 | #define INIT_G() do { \
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| 78 | SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \
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| 79 | } while (0)
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| 80 |
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| 81 | static void append(const char *s)
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| 82 | {
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| 83 | unsigned len = strlen(s);
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| 84 | if (stringbuf_idx + len + 15 > stringbuf_size) {
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| 85 | stringbuf_size = stringbuf_idx + len + 127;
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| 86 | dbg2_error_msg("grow stringbuf to %u", stringbuf_size);
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| 87 | stringbuf = xrealloc(stringbuf, stringbuf_size);
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| 88 | }
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| 89 | memcpy(stringbuf + stringbuf_idx, s, len);
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| 90 | stringbuf_idx += len;
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| 91 | }
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| 92 |
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| 93 | static void appendc(char c)
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| 94 | {
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| 95 | /* We appendc() only after append(), + 15 trick in append()
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| 96 | * makes it unnecessary to check for overflow here */
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| 97 | stringbuf[stringbuf_idx++] = c;
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| 98 | }
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| 99 |
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| 100 | static void bksp(void)
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| 101 | {
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| 102 | if (stringbuf_idx)
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| 103 | stringbuf_idx--;
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| 104 | }
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| 105 |
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| 106 | static void reset_stringbuf(void)
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| 107 | {
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| 108 | stringbuf_idx = 0;
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| 109 | }
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| 110 |
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| 111 | static char* copy_stringbuf(void)
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| 112 | {
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| 113 | char *copy = xzalloc(stringbuf_idx + 1); /* terminating NUL */
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| 114 | return memcpy(copy, stringbuf, stringbuf_idx);
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| 115 | }
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| 116 |
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| 117 | static char* find_keyword(char *ptr, size_t len, const char *word)
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| 118 | {
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| 119 | if (!ptr) /* happens if xmalloc_open_zipped_read_close cannot read it */
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| 120 | return NULL;
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| 121 |
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[3621] | 122 | len -= strlen(word) - 1;
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[2725] | 123 | while ((ssize_t)len > 0) {
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| 124 | char *old = ptr;
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[3621] | 125 | char *after_word;
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| 126 |
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[2725] | 127 | /* search for the first char in word */
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[3621] | 128 | ptr = memchr(ptr, word[0], len);
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[2725] | 129 | if (ptr == NULL) /* no occurance left, done */
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| 130 | break;
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[3621] | 131 | after_word = is_prefixed_with(ptr, word);
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| 132 | if (after_word)
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| 133 | return after_word; /* found, return ptr past it */
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[2725] | 134 | ++ptr;
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| 135 | len -= (ptr - old);
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| 136 | }
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| 137 | return NULL;
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| 138 | }
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| 139 |
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| 140 | static void replace(char *s, char what, char with)
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| 141 | {
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| 142 | while (*s) {
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| 143 | if (what == *s)
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| 144 | *s = with;
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| 145 | ++s;
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| 146 | }
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| 147 | }
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| 148 |
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[3621] | 149 | static char *filename2modname(const char *filename, char *modname)
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| 150 | {
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| 151 | int i;
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| 152 | const char *from;
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| 153 |
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| 154 | // Disabled since otherwise "modprobe dir/name" would work
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| 155 | // as if it is "modprobe name". It is unclear why
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| 156 | // 'basenamization' was here in the first place.
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| 157 | //from = bb_get_last_path_component_nostrip(filename);
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| 158 | from = filename;
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| 159 | for (i = 0; i < (MODULE_NAME_LEN-1) && from[i] != '\0' && from[i] != '.'; i++)
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| 160 | modname[i] = (from[i] == '-') ? '_' : from[i];
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| 161 | modname[i] = '\0';
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| 162 |
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| 163 | return modname;
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| 164 | }
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| 165 |
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| 166 | static int pathname_matches_modname(const char *pathname, const char *modname)
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| 167 | {
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| 168 | int r;
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| 169 | char name[MODULE_NAME_LEN];
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| 170 | filename2modname(bb_get_last_path_component_nostrip(pathname), name);
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| 171 | r = (strcmp(name, modname) == 0);
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| 172 | return r;
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| 173 | }
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| 174 |
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[2725] | 175 | /* Take "word word", return malloced "word",NUL,"word",NUL,NUL */
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| 176 | static char* str_2_list(const char *str)
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| 177 | {
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| 178 | int len = strlen(str) + 1;
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| 179 | char *dst = xmalloc(len + 1);
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| 180 |
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| 181 | dst[len] = '\0';
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| 182 | memcpy(dst, str, len);
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| 183 | //TODO: protect against 2+ spaces: "word word"
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| 184 | replace(dst, ' ', '\0');
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| 185 | return dst;
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| 186 | }
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| 187 |
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| 188 | /* We use error numbers in a loose translation... */
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| 189 | static const char *moderror(int err)
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| 190 | {
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| 191 | switch (err) {
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| 192 | case ENOEXEC:
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| 193 | return "invalid module format";
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| 194 | case ENOENT:
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| 195 | return "unknown symbol in module or invalid parameter";
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| 196 | case ESRCH:
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| 197 | return "module has wrong symbol version";
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| 198 | case EINVAL: /* "invalid parameter" */
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| 199 | return "unknown symbol in module or invalid parameter"
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| 200 | + sizeof("unknown symbol in module or");
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| 201 | default:
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| 202 | return strerror(err);
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| 203 | }
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| 204 | }
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| 205 |
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| 206 | static int load_module(const char *fname, const char *options)
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| 207 | {
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| 208 | #if 1
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| 209 | int r;
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| 210 | size_t len = MAXINT(ssize_t);
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| 211 | char *module_image;
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| 212 | dbg1_error_msg("load_module('%s','%s')", fname, options);
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| 213 |
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| 214 | module_image = xmalloc_open_zipped_read_close(fname, &len);
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| 215 | r = (!module_image || init_module(module_image, len, options ? options : "") != 0);
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| 216 | free(module_image);
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| 217 | dbg1_error_msg("load_module:%d", r);
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| 218 | return r; /* 0 = success */
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| 219 | #else
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| 220 | /* For testing */
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| 221 | dbg1_error_msg("load_module('%s','%s')", fname, options);
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| 222 | return 1;
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| 223 | #endif
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| 224 | }
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| 225 |
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[3621] | 226 | /* Returns !0 if open/read was unsuccessful */
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| 227 | static int parse_module(module_info *info, const char *pathname)
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[2725] | 228 | {
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| 229 | char *module_image;
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| 230 | char *ptr;
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| 231 | size_t len;
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| 232 | size_t pos;
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| 233 | dbg1_error_msg("parse_module('%s')", pathname);
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| 234 |
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| 235 | /* Read (possibly compressed) module */
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[3621] | 236 | errno = 0;
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[2725] | 237 | len = 64 * 1024 * 1024; /* 64 Mb at most */
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| 238 | module_image = xmalloc_open_zipped_read_close(pathname, &len);
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| 239 | /* module_image == NULL is ok here, find_keyword handles it */
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| 240 | //TODO: optimize redundant module body reads
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| 241 |
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| 242 | /* "alias1 symbol:sym1 alias2 symbol:sym2" */
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| 243 | reset_stringbuf();
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| 244 | pos = 0;
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| 245 | while (1) {
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[3621] | 246 | unsigned start = stringbuf_idx;
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[2725] | 247 | ptr = find_keyword(module_image + pos, len - pos, "alias=");
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| 248 | if (!ptr) {
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| 249 | ptr = find_keyword(module_image + pos, len - pos, "__ksymtab_");
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| 250 | if (!ptr)
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| 251 | break;
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| 252 | /* DOCME: __ksymtab_gpl and __ksymtab_strings occur
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| 253 | * in many modules. What do they mean? */
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| 254 | if (strcmp(ptr, "gpl") == 0 || strcmp(ptr, "strings") == 0)
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| 255 | goto skip;
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| 256 | dbg2_error_msg("alias:'symbol:%s'", ptr);
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| 257 | append("symbol:");
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| 258 | } else {
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| 259 | dbg2_error_msg("alias:'%s'", ptr);
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| 260 | }
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| 261 | append(ptr);
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| 262 | appendc(' ');
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[3621] | 263 | /*
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| 264 | * Don't add redundant aliases, such as:
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| 265 | * libcrc32c.ko symbol:crc32c symbol:crc32c
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| 266 | */
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| 267 | if (start) { /* "if we aren't the first alias" */
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| 268 | char *found, *last;
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| 269 | stringbuf[stringbuf_idx] = '\0';
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| 270 | last = stringbuf + start;
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| 271 | /*
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| 272 | * String at last-1 is " symbol:crc32c "
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| 273 | * (with both leading and trailing spaces).
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| 274 | */
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| 275 | if (strncmp(stringbuf, last, stringbuf_idx - start) == 0)
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| 276 | /* First alias matches us */
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| 277 | found = stringbuf;
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| 278 | else
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| 279 | /* Does any other alias match? */
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| 280 | found = strstr(stringbuf, last-1);
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| 281 | if (found < last-1) {
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| 282 | /* There is absolutely the same string before us */
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| 283 | dbg2_error_msg("redundant:'%s'", last);
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| 284 | stringbuf_idx = start;
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| 285 | goto skip;
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| 286 | }
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| 287 | }
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[2725] | 288 | skip:
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| 289 | pos = (ptr - module_image);
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| 290 | }
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| 291 | bksp(); /* remove last ' ' */
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| 292 | info->aliases = copy_stringbuf();
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| 293 | replace(info->aliases, '-', '_');
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| 294 |
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| 295 | /* "dependency1 depandency2" */
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| 296 | reset_stringbuf();
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| 297 | ptr = find_keyword(module_image, len, "depends=");
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| 298 | if (ptr && *ptr) {
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| 299 | replace(ptr, ',', ' ');
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| 300 | replace(ptr, '-', '_');
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| 301 | dbg2_error_msg("dep:'%s'", ptr);
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| 302 | append(ptr);
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| 303 | }
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[3621] | 304 | free(module_image);
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[2725] | 305 | info->deps = copy_stringbuf();
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| 306 |
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[3621] | 307 | info->open_read_failed = (module_image == NULL);
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| 308 | return info->open_read_failed;
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[2725] | 309 | }
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| 310 |
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| 311 | static FAST_FUNC int fileAction(const char *pathname,
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| 312 | struct stat *sb UNUSED_PARAM,
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| 313 | void *modname_to_match,
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| 314 | int depth UNUSED_PARAM)
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| 315 | {
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| 316 | int cur;
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| 317 | const char *fname;
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| 318 |
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| 319 | pathname += 2; /* skip "./" */
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| 320 | fname = bb_get_last_path_component_nostrip(pathname);
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| 321 | if (!strrstr(fname, ".ko")) {
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| 322 | dbg1_error_msg("'%s' is not a module", pathname);
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| 323 | return TRUE; /* not a module, continue search */
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| 324 | }
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| 325 |
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| 326 | cur = module_count++;
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| 327 | modinfo = xrealloc_vector(modinfo, 12, cur);
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| 328 | modinfo[cur].pathname = xstrdup(pathname);
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| 329 | /*modinfo[cur].aliases = NULL; - xrealloc_vector did it */
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| 330 | /*modinfo[cur+1].pathname = NULL;*/
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| 331 |
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| 332 | if (!pathname_matches_modname(fname, modname_to_match)) {
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| 333 | dbg1_error_msg("'%s' module name doesn't match", pathname);
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| 334 | return TRUE; /* module name doesn't match, continue search */
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| 335 | }
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| 336 |
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| 337 | dbg1_error_msg("'%s' module name matches", pathname);
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| 338 | module_found_idx = cur;
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[3621] | 339 | if (parse_module(&modinfo[cur], pathname) != 0)
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| 340 | return TRUE; /* failed to open/read it, no point in trying loading */
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[2725] | 341 |
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| 342 | if (!(option_mask32 & OPT_r)) {
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| 343 | if (load_module(pathname, module_load_options) == 0) {
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| 344 | /* Load was successful, there is nothing else to do.
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| 345 | * This can happen ONLY for "top-level" module load,
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| 346 | * not a dep, because deps dont do dirscan. */
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| 347 | exit(EXIT_SUCCESS);
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| 348 | }
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| 349 | }
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| 350 |
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| 351 | return TRUE;
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| 352 | }
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| 353 |
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| 354 | static int load_dep_bb(void)
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| 355 | {
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| 356 | char *line;
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| 357 | FILE *fp = fopen_for_read(DEPFILE_BB);
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| 358 |
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| 359 | if (!fp)
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| 360 | return 0;
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| 361 |
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| 362 | dep_bb_seen = 1;
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| 363 | dbg1_error_msg("loading "DEPFILE_BB);
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| 364 |
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| 365 | /* Why? There is a rare scenario: we did not find modprobe.dep.bb,
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| 366 | * we scanned the dir and found no module by name, then we search
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| 367 | * for alias (full scan), and we decided to generate modprobe.dep.bb.
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| 368 | * But we see modprobe.dep.bb.new! Other modprobe is at work!
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| 369 | * We wait and other modprobe renames it to modprobe.dep.bb.
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| 370 | * Now we can use it.
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| 371 | * But we already have modinfo[] filled, and "module_count = 0"
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| 372 | * makes us start anew. Yes, we leak modinfo[].xxx pointers -
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| 373 | * there is not much of data there anyway. */
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| 374 | module_count = 0;
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| 375 | memset(&modinfo[0], 0, sizeof(modinfo[0]));
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| 376 |
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| 377 | while ((line = xmalloc_fgetline(fp)) != NULL) {
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| 378 | char* space;
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| 379 | char* linebuf;
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| 380 | int cur;
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| 381 |
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| 382 | if (!line[0]) {
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| 383 | free(line);
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| 384 | continue;
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| 385 | }
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| 386 | space = strchrnul(line, ' ');
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| 387 | cur = module_count++;
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| 388 | modinfo = xrealloc_vector(modinfo, 12, cur);
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| 389 | /*modinfo[cur+1].pathname = NULL; - xrealloc_vector did it */
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| 390 | modinfo[cur].pathname = line; /* we take ownership of malloced block here */
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| 391 | if (*space)
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| 392 | *space++ = '\0';
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| 393 | modinfo[cur].aliases = space;
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| 394 | linebuf = xmalloc_fgetline(fp);
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| 395 | modinfo[cur].deps = linebuf ? linebuf : xzalloc(1);
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| 396 | if (modinfo[cur].deps[0]) {
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| 397 | /* deps are not "", so next line must be empty */
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| 398 | line = xmalloc_fgetline(fp);
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| 399 | /* Refuse to work with damaged config file */
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| 400 | if (line && line[0])
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| 401 | bb_error_msg_and_die("error in %s at '%s'", DEPFILE_BB, line);
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| 402 | free(line);
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| 403 | }
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| 404 | }
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| 405 | return 1;
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| 406 | }
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| 407 |
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| 408 | static int start_dep_bb_writeout(void)
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| 409 | {
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| 410 | int fd;
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| 411 |
|
---|
| 412 | /* depmod -n: write result to stdout */
|
---|
| 413 | if (applet_name[0] == 'd' && (option_mask32 & 1))
|
---|
| 414 | return STDOUT_FILENO;
|
---|
| 415 |
|
---|
| 416 | fd = open(DEPFILE_BB".new", O_WRONLY | O_CREAT | O_TRUNC | O_EXCL, 0644);
|
---|
| 417 | if (fd < 0) {
|
---|
| 418 | if (errno == EEXIST) {
|
---|
| 419 | int count = 5 * 20;
|
---|
| 420 | dbg1_error_msg(DEPFILE_BB".new exists, waiting for "DEPFILE_BB);
|
---|
| 421 | while (1) {
|
---|
| 422 | usleep(1000*1000 / 20);
|
---|
| 423 | if (load_dep_bb()) {
|
---|
| 424 | dbg1_error_msg(DEPFILE_BB" appeared");
|
---|
| 425 | return -2; /* magic number */
|
---|
| 426 | }
|
---|
| 427 | if (!--count)
|
---|
| 428 | break;
|
---|
| 429 | }
|
---|
| 430 | bb_error_msg("deleting stale %s", DEPFILE_BB".new");
|
---|
| 431 | fd = open_or_warn(DEPFILE_BB".new", O_WRONLY | O_CREAT | O_TRUNC);
|
---|
| 432 | }
|
---|
| 433 | }
|
---|
| 434 | dbg1_error_msg("opened "DEPFILE_BB".new:%d", fd);
|
---|
| 435 | return fd;
|
---|
| 436 | }
|
---|
| 437 |
|
---|
| 438 | static void write_out_dep_bb(int fd)
|
---|
| 439 | {
|
---|
| 440 | int i;
|
---|
| 441 | FILE *fp;
|
---|
| 442 |
|
---|
| 443 | /* We want good error reporting. fdprintf is not good enough. */
|
---|
| 444 | fp = xfdopen_for_write(fd);
|
---|
| 445 | i = 0;
|
---|
| 446 | while (modinfo[i].pathname) {
|
---|
| 447 | fprintf(fp, "%s%s%s\n" "%s%s\n",
|
---|
| 448 | modinfo[i].pathname, modinfo[i].aliases[0] ? " " : "", modinfo[i].aliases,
|
---|
| 449 | modinfo[i].deps, modinfo[i].deps[0] ? "\n" : "");
|
---|
| 450 | i++;
|
---|
| 451 | }
|
---|
| 452 | /* Badly formatted depfile is a no-no. Be paranoid. */
|
---|
| 453 | errno = 0;
|
---|
| 454 | if (ferror(fp) | fclose(fp)) /* | instead of || is intended */
|
---|
| 455 | goto err;
|
---|
| 456 |
|
---|
| 457 | if (fd == STDOUT_FILENO) /* it was depmod -n */
|
---|
| 458 | goto ok;
|
---|
| 459 |
|
---|
| 460 | if (rename(DEPFILE_BB".new", DEPFILE_BB) != 0) {
|
---|
| 461 | err:
|
---|
| 462 | bb_perror_msg("can't create '%s'", DEPFILE_BB);
|
---|
| 463 | unlink(DEPFILE_BB".new");
|
---|
| 464 | } else {
|
---|
| 465 | ok:
|
---|
| 466 | wrote_dep_bb_ok = 1;
|
---|
| 467 | dbg1_error_msg("created "DEPFILE_BB);
|
---|
| 468 | }
|
---|
| 469 | }
|
---|
| 470 |
|
---|
[3621] | 471 | static module_info** find_alias(const char *alias)
|
---|
[2725] | 472 | {
|
---|
| 473 | int i;
|
---|
| 474 | int dep_bb_fd;
|
---|
[3621] | 475 | int infoidx;
|
---|
| 476 | module_info **infovec;
|
---|
[2725] | 477 | dbg1_error_msg("find_alias('%s')", alias);
|
---|
| 478 |
|
---|
| 479 | try_again:
|
---|
| 480 | /* First try to find by name (cheaper) */
|
---|
| 481 | i = 0;
|
---|
| 482 | while (modinfo[i].pathname) {
|
---|
| 483 | if (pathname_matches_modname(modinfo[i].pathname, alias)) {
|
---|
| 484 | dbg1_error_msg("found '%s' in module '%s'",
|
---|
| 485 | alias, modinfo[i].pathname);
|
---|
| 486 | if (!modinfo[i].aliases) {
|
---|
| 487 | parse_module(&modinfo[i], modinfo[i].pathname);
|
---|
| 488 | }
|
---|
[3621] | 489 | infovec = xzalloc(2 * sizeof(infovec[0]));
|
---|
| 490 | infovec[0] = &modinfo[i];
|
---|
| 491 | return infovec;
|
---|
[2725] | 492 | }
|
---|
| 493 | i++;
|
---|
| 494 | }
|
---|
| 495 |
|
---|
| 496 | /* Ok, we definitely have to scan module bodies. This is a good
|
---|
| 497 | * moment to generate modprobe.dep.bb, if it does not exist yet */
|
---|
| 498 | dep_bb_fd = dep_bb_seen ? -1 : start_dep_bb_writeout();
|
---|
| 499 | if (dep_bb_fd == -2) /* modprobe.dep.bb appeared? */
|
---|
| 500 | goto try_again;
|
---|
| 501 |
|
---|
| 502 | /* Scan all module bodies, extract modinfo (it contains aliases) */
|
---|
| 503 | i = 0;
|
---|
[3621] | 504 | infoidx = 0;
|
---|
| 505 | infovec = NULL;
|
---|
[2725] | 506 | while (modinfo[i].pathname) {
|
---|
| 507 | char *desc, *s;
|
---|
| 508 | if (!modinfo[i].aliases) {
|
---|
| 509 | parse_module(&modinfo[i], modinfo[i].pathname);
|
---|
| 510 | }
|
---|
| 511 | /* "alias1 symbol:sym1 alias2 symbol:sym2" */
|
---|
| 512 | desc = str_2_list(modinfo[i].aliases);
|
---|
| 513 | /* Does matching substring exist? */
|
---|
| 514 | for (s = desc; *s; s += strlen(s) + 1) {
|
---|
| 515 | /* Aliases in module bodies can be defined with
|
---|
| 516 | * shell patterns. Example:
|
---|
| 517 | * "pci:v000010DEd000000D9sv*sd*bc*sc*i*".
|
---|
| 518 | * Plain strcmp() won't catch that */
|
---|
| 519 | if (fnmatch(s, alias, 0) == 0) {
|
---|
| 520 | dbg1_error_msg("found alias '%s' in module '%s'",
|
---|
| 521 | alias, modinfo[i].pathname);
|
---|
[3621] | 522 | infovec = xrealloc_vector(infovec, 1, infoidx);
|
---|
| 523 | infovec[infoidx++] = &modinfo[i];
|
---|
[2725] | 524 | break;
|
---|
| 525 | }
|
---|
| 526 | }
|
---|
| 527 | free(desc);
|
---|
| 528 | i++;
|
---|
| 529 | }
|
---|
| 530 |
|
---|
| 531 | /* Create module.dep.bb if needed */
|
---|
| 532 | if (dep_bb_fd >= 0) {
|
---|
| 533 | write_out_dep_bb(dep_bb_fd);
|
---|
| 534 | }
|
---|
| 535 |
|
---|
[3621] | 536 | dbg1_error_msg("find_alias '%s' returns %d results", alias, infoidx);
|
---|
| 537 | return infovec;
|
---|
[2725] | 538 | }
|
---|
| 539 |
|
---|
| 540 | #if ENABLE_FEATURE_MODPROBE_SMALL_CHECK_ALREADY_LOADED
|
---|
| 541 | // TODO: open only once, invent config_rewind()
|
---|
| 542 | static int already_loaded(const char *name)
|
---|
| 543 | {
|
---|
[3621] | 544 | int ret;
|
---|
| 545 | char *line;
|
---|
| 546 | FILE *fp;
|
---|
| 547 |
|
---|
| 548 | ret = 5 * 2;
|
---|
| 549 | again:
|
---|
| 550 | fp = fopen_for_read("/proc/modules");
|
---|
| 551 | if (!fp)
|
---|
| 552 | return 0;
|
---|
| 553 | while ((line = xmalloc_fgetline(fp)) != NULL) {
|
---|
| 554 | char *live;
|
---|
| 555 | char *after_name;
|
---|
| 556 |
|
---|
| 557 | // Examples from kernel 3.14.6:
|
---|
| 558 | //pcspkr 12718 0 - Live 0xffffffffa017e000
|
---|
| 559 | //snd_timer 28690 2 snd_seq,snd_pcm, Live 0xffffffffa025e000
|
---|
| 560 | //i915 801405 2 - Live 0xffffffffa0096000
|
---|
| 561 | after_name = is_prefixed_with(line, name);
|
---|
| 562 | if (!after_name || *after_name != ' ') {
|
---|
| 563 | free(line);
|
---|
| 564 | continue;
|
---|
[2725] | 565 | }
|
---|
[3621] | 566 | live = strstr(line, " Live");
|
---|
| 567 | free(line);
|
---|
| 568 | if (!live) {
|
---|
| 569 | /* State can be Unloading, Loading, or Live.
|
---|
| 570 | * modprobe must not return prematurely if we see "Loading":
|
---|
| 571 | * it can cause further programs to assume load completed,
|
---|
| 572 | * but it did not (yet)!
|
---|
| 573 | * Wait up to 5*20 ms for it to resolve.
|
---|
| 574 | */
|
---|
| 575 | ret -= 2;
|
---|
| 576 | if (ret == 0)
|
---|
| 577 | break; /* huh? report as "not loaded" */
|
---|
| 578 | fclose(fp);
|
---|
| 579 | usleep(20*1000);
|
---|
| 580 | goto again;
|
---|
| 581 | }
|
---|
| 582 | ret = 1;
|
---|
| 583 | break;
|
---|
[2725] | 584 | }
|
---|
[3621] | 585 | fclose(fp);
|
---|
| 586 |
|
---|
| 587 | return ret & 1;
|
---|
[2725] | 588 | }
|
---|
| 589 | #else
|
---|
[3621] | 590 | #define already_loaded(name) 0
|
---|
[2725] | 591 | #endif
|
---|
| 592 |
|
---|
[3621] | 593 | static int rmmod(const char *filename)
|
---|
| 594 | {
|
---|
| 595 | int r;
|
---|
| 596 | char modname[MODULE_NAME_LEN];
|
---|
| 597 |
|
---|
| 598 | filename2modname(filename, modname);
|
---|
| 599 | r = delete_module(modname, O_NONBLOCK | O_EXCL);
|
---|
| 600 | dbg1_error_msg("delete_module('%s', O_NONBLOCK | O_EXCL):%d", modname, r);
|
---|
| 601 | if (r != 0 && !(option_mask32 & OPT_q)) {
|
---|
| 602 | bb_perror_msg("remove '%s'", modname);
|
---|
| 603 | }
|
---|
| 604 | return r;
|
---|
| 605 | }
|
---|
| 606 |
|
---|
[2725] | 607 | /*
|
---|
| 608 | * Given modules definition and module name (or alias, or symbol)
|
---|
| 609 | * load/remove the module respecting dependencies.
|
---|
| 610 | * NB: also called by depmod with bogus name "/",
|
---|
| 611 | * just in order to force modprobe.dep.bb creation.
|
---|
| 612 | */
|
---|
| 613 | #if !ENABLE_FEATURE_MODPROBE_SMALL_OPTIONS_ON_CMDLINE
|
---|
| 614 | #define process_module(a,b) process_module(a)
|
---|
| 615 | #define cmdline_options ""
|
---|
| 616 | #endif
|
---|
[3621] | 617 | static int process_module(char *name, const char *cmdline_options)
|
---|
[2725] | 618 | {
|
---|
| 619 | char *s, *deps, *options;
|
---|
[3621] | 620 | module_info **infovec;
|
---|
[2725] | 621 | module_info *info;
|
---|
[3621] | 622 | int infoidx;
|
---|
| 623 | int is_remove = (option_mask32 & OPT_r) != 0;
|
---|
| 624 | int exitcode = EXIT_SUCCESS;
|
---|
| 625 |
|
---|
[2725] | 626 | dbg1_error_msg("process_module('%s','%s')", name, cmdline_options);
|
---|
| 627 |
|
---|
| 628 | replace(name, '-', '_');
|
---|
| 629 |
|
---|
[3621] | 630 | dbg1_error_msg("already_loaded:%d is_remove:%d", already_loaded(name), is_remove);
|
---|
| 631 |
|
---|
| 632 | if (applet_name[0] == 'r') {
|
---|
| 633 | /* rmmod.
|
---|
| 634 | * Does not remove dependencies, no need to scan, just remove.
|
---|
| 635 | * (compat note: this allows and strips .ko suffix)
|
---|
| 636 | */
|
---|
| 637 | rmmod(name);
|
---|
| 638 | return EXIT_SUCCESS;
|
---|
| 639 | }
|
---|
| 640 |
|
---|
| 641 | /*
|
---|
| 642 | * We used to have "is_remove != already_loaded(name)" check here, but
|
---|
| 643 | * modprobe -r pci:v00008086d00007010sv00000000sd00000000bc01sc01i80
|
---|
| 644 | * won't unload modules (there are more than one)
|
---|
| 645 | * which have this alias.
|
---|
| 646 | */
|
---|
| 647 | if (!is_remove && already_loaded(name)) {
|
---|
[2725] | 648 | dbg1_error_msg("nothing to do for '%s'", name);
|
---|
[3621] | 649 | return EXIT_SUCCESS;
|
---|
[2725] | 650 | }
|
---|
| 651 |
|
---|
| 652 | options = NULL;
|
---|
[3621] | 653 | if (!is_remove) {
|
---|
[2725] | 654 | char *opt_filename = xasprintf("/etc/modules/%s", name);
|
---|
| 655 | options = xmalloc_open_read_close(opt_filename, NULL);
|
---|
| 656 | if (options)
|
---|
| 657 | replace(options, '\n', ' ');
|
---|
| 658 | #if ENABLE_FEATURE_MODPROBE_SMALL_OPTIONS_ON_CMDLINE
|
---|
| 659 | if (cmdline_options) {
|
---|
| 660 | /* NB: cmdline_options always have one leading ' '
|
---|
| 661 | * (see main()), we remove it here */
|
---|
| 662 | char *op = xasprintf(options ? "%s %s" : "%s %s" + 3,
|
---|
| 663 | cmdline_options + 1, options);
|
---|
| 664 | free(options);
|
---|
| 665 | options = op;
|
---|
| 666 | }
|
---|
| 667 | #endif
|
---|
| 668 | free(opt_filename);
|
---|
| 669 | module_load_options = options;
|
---|
| 670 | dbg1_error_msg("process_module('%s'): options:'%s'", name, options);
|
---|
| 671 | }
|
---|
| 672 |
|
---|
| 673 | if (!module_count) {
|
---|
| 674 | /* Scan module directory. This is done only once.
|
---|
| 675 | * It will attempt module load, and will exit(EXIT_SUCCESS)
|
---|
[3621] | 676 | * on success.
|
---|
| 677 | */
|
---|
[2725] | 678 | module_found_idx = -1;
|
---|
| 679 | recursive_action(".",
|
---|
| 680 | ACTION_RECURSE, /* flags */
|
---|
| 681 | fileAction, /* file action */
|
---|
| 682 | NULL, /* dir action */
|
---|
| 683 | name, /* user data */
|
---|
[3621] | 684 | 0 /* depth */
|
---|
| 685 | );
|
---|
[2725] | 686 | dbg1_error_msg("dirscan complete");
|
---|
[3621] | 687 | /* Module was not found, or load failed, or is_remove */
|
---|
[2725] | 688 | if (module_found_idx >= 0) { /* module was found */
|
---|
[3621] | 689 | infovec = xzalloc(2 * sizeof(infovec[0]));
|
---|
| 690 | infovec[0] = &modinfo[module_found_idx];
|
---|
[2725] | 691 | } else { /* search for alias, not a plain module name */
|
---|
[3621] | 692 | infovec = find_alias(name);
|
---|
[2725] | 693 | }
|
---|
| 694 | } else {
|
---|
[3621] | 695 | infovec = find_alias(name);
|
---|
[2725] | 696 | }
|
---|
| 697 |
|
---|
[3621] | 698 | if (!infovec) {
|
---|
| 699 | /* both dirscan and find_alias found nothing */
|
---|
| 700 | if (!is_remove && applet_name[0] != 'd') /* it wasn't rmmod or depmod */
|
---|
| 701 | bb_error_msg("module '%s' not found", name);
|
---|
| 702 | //TODO: _and_die()? or should we continue (un)loading modules listed on cmdline?
|
---|
| 703 | goto ret;
|
---|
| 704 | }
|
---|
[2725] | 705 |
|
---|
[3621] | 706 | /* There can be more than one module for the given alias. For example,
|
---|
| 707 | * "pci:v00008086d00007010sv00000000sd00000000bc01sc01i80" matches
|
---|
| 708 | * ata_piix because it has alias "pci:v00008086d00007010sv*sd*bc*sc*i*"
|
---|
| 709 | * and ata_generic, it has alias "pci:v*d*sv*sd*bc01sc01i*"
|
---|
| 710 | * Standard modprobe loads them both. We achieve it by returning
|
---|
| 711 | * a *list* of modinfo pointers from find_alias().
|
---|
| 712 | */
|
---|
[3232] | 713 |
|
---|
[3621] | 714 | /* modprobe -r? unload module(s) */
|
---|
| 715 | if (is_remove) {
|
---|
| 716 | infoidx = 0;
|
---|
| 717 | while ((info = infovec[infoidx++]) != NULL) {
|
---|
| 718 | int r = rmmod(bb_get_last_path_component_nostrip(info->pathname));
|
---|
| 719 | if (r != 0) {
|
---|
| 720 | goto ret; /* error */
|
---|
| 721 | }
|
---|
[3232] | 722 | }
|
---|
| 723 | /* modprobe -r: we do not stop here -
|
---|
[2725] | 724 | * continue to unload modules on which the module depends:
|
---|
| 725 | * "-r --remove: option causes modprobe to remove a module.
|
---|
| 726 | * If the modules it depends on are also unused, modprobe
|
---|
[3232] | 727 | * will try to remove them, too."
|
---|
| 728 | */
|
---|
[2725] | 729 | }
|
---|
| 730 |
|
---|
[3621] | 731 | infoidx = 0;
|
---|
| 732 | while ((info = infovec[infoidx++]) != NULL) {
|
---|
| 733 | /* Iterate thru dependencies, trying to (un)load them */
|
---|
| 734 | deps = str_2_list(info->deps);
|
---|
| 735 | for (s = deps; *s; s += strlen(s) + 1) {
|
---|
| 736 | //if (strcmp(name, s) != 0) // N.B. do loops exist?
|
---|
| 737 | dbg1_error_msg("recurse on dep '%s'", s);
|
---|
| 738 | process_module(s, NULL);
|
---|
| 739 | dbg1_error_msg("recurse on dep '%s' done", s);
|
---|
| 740 | }
|
---|
| 741 | free(deps);
|
---|
[2725] | 742 |
|
---|
[3621] | 743 | if (is_remove)
|
---|
| 744 | continue;
|
---|
[2725] | 745 |
|
---|
[3621] | 746 | /* We are modprobe: load it */
|
---|
| 747 | if (options && strstr(options, "blacklist")) {
|
---|
[2725] | 748 | dbg1_error_msg("'%s': blacklisted", info->pathname);
|
---|
[3621] | 749 | continue;
|
---|
[2725] | 750 | }
|
---|
[3621] | 751 | if (info->open_read_failed) {
|
---|
| 752 | /* We already tried it, didn't work. Don't try load again */
|
---|
| 753 | exitcode = EXIT_FAILURE;
|
---|
| 754 | continue;
|
---|
| 755 | }
|
---|
| 756 | errno = 0;
|
---|
| 757 | if (load_module(info->pathname, options) != 0) {
|
---|
| 758 | if (EEXIST != errno) {
|
---|
| 759 | bb_error_msg("'%s': %s",
|
---|
| 760 | info->pathname,
|
---|
| 761 | moderror(errno));
|
---|
| 762 | } else {
|
---|
| 763 | dbg1_error_msg("'%s': %s",
|
---|
| 764 | info->pathname,
|
---|
| 765 | moderror(errno));
|
---|
| 766 | }
|
---|
| 767 | exitcode = EXIT_FAILURE;
|
---|
| 768 | }
|
---|
[2725] | 769 | }
|
---|
| 770 | ret:
|
---|
[3621] | 771 | free(infovec);
|
---|
[2725] | 772 | free(options);
|
---|
[3621] | 773 |
|
---|
| 774 | return exitcode;
|
---|
[2725] | 775 | }
|
---|
| 776 | #undef cmdline_options
|
---|
| 777 |
|
---|
| 778 |
|
---|
| 779 | /* For reference, module-init-tools v3.4 options:
|
---|
| 780 |
|
---|
| 781 | # insmod
|
---|
| 782 | Usage: insmod filename [args]
|
---|
| 783 |
|
---|
| 784 | # rmmod --help
|
---|
| 785 | Usage: rmmod [-fhswvV] modulename ...
|
---|
| 786 | -f (or --force) forces a module unload, and may crash your
|
---|
| 787 | machine. This requires the Forced Module Removal option
|
---|
| 788 | when the kernel was compiled.
|
---|
| 789 | -h (or --help) prints this help text
|
---|
| 790 | -s (or --syslog) says use syslog, not stderr
|
---|
| 791 | -v (or --verbose) enables more messages
|
---|
| 792 | -V (or --version) prints the version code
|
---|
| 793 | -w (or --wait) begins module removal even if it is used
|
---|
| 794 | and will stop new users from accessing the module (so it
|
---|
| 795 | should eventually fall to zero).
|
---|
| 796 |
|
---|
| 797 | # modprobe
|
---|
| 798 | Usage: modprobe [-v] [-V] [-C config-file] [-n] [-i] [-q] [-b]
|
---|
| 799 | [-o <modname>] [ --dump-modversions ] <modname> [parameters...]
|
---|
| 800 | modprobe -r [-n] [-i] [-v] <modulename> ...
|
---|
| 801 | modprobe -l -t <dirname> [ -a <modulename> ...]
|
---|
| 802 |
|
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| 803 | # depmod --help
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| 804 | depmod 3.4 -- part of module-init-tools
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| 805 | depmod -[aA] [-n -e -v -q -V -r -u]
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| 806 | [-b basedirectory] [forced_version]
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| 807 | depmod [-n -e -v -q -r -u] [-F kernelsyms] module1.ko module2.ko ...
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| 808 | If no arguments (except options) are given, "depmod -a" is assumed.
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| 809 | depmod will output a dependency list suitable for the modprobe utility.
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| 810 | Options:
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| 811 | -a, --all Probe all modules
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| 812 | -A, --quick Only does the work if there's a new module
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| 813 | -n, --show Write the dependency file on stdout only
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| 814 | -e, --errsyms Report not supplied symbols
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| 815 | -V, --version Print the release version
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| 816 | -v, --verbose Enable verbose mode
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| 817 | -h, --help Print this usage message
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| 818 | The following options are useful for people managing distributions:
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| 819 | -b basedirectory
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| 820 | --basedir basedirectory
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| 821 | Use an image of a module tree
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| 822 | -F kernelsyms
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| 823 | --filesyms kernelsyms
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| 824 | Use the file instead of the current kernel symbols
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| 825 | */
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| 826 |
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| 827 | //usage:#if ENABLE_MODPROBE_SMALL
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| 828 |
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| 829 | //usage:#define depmod_trivial_usage NOUSAGE_STR
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| 830 | //usage:#define depmod_full_usage ""
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| 831 |
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| 832 | //usage:#define lsmod_trivial_usage
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| 833 | //usage: ""
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| 834 | //usage:#define lsmod_full_usage "\n\n"
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| 835 | //usage: "List the currently loaded kernel modules"
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| 836 |
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| 837 | //usage:#define insmod_trivial_usage
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| 838 | //usage: IF_FEATURE_2_4_MODULES("[OPTIONS] MODULE ")
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| 839 | //usage: IF_NOT_FEATURE_2_4_MODULES("FILE ")
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| 840 | //usage: "[SYMBOL=VALUE]..."
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| 841 | //usage:#define insmod_full_usage "\n\n"
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[3621] | 842 | //usage: "Load kernel module"
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[2725] | 843 | //usage: IF_FEATURE_2_4_MODULES( "\n"
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| 844 | //usage: "\n -f Force module to load into the wrong kernel version"
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| 845 | //usage: "\n -k Make module autoclean-able"
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| 846 | //usage: "\n -v Verbose"
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| 847 | //usage: "\n -q Quiet"
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| 848 | //usage: "\n -L Lock: prevent simultaneous loads"
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| 849 | //usage: IF_FEATURE_INSMOD_LOAD_MAP(
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| 850 | //usage: "\n -m Output load map to stdout"
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| 851 | //usage: )
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| 852 | //usage: "\n -x Don't export externs"
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| 853 | //usage: )
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| 854 |
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| 855 | //usage:#define rmmod_trivial_usage
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| 856 | //usage: "[-wfa] [MODULE]..."
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| 857 | //usage:#define rmmod_full_usage "\n\n"
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| 858 | //usage: "Unload kernel modules\n"
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| 859 | //usage: "\n -w Wait until the module is no longer used"
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| 860 | //usage: "\n -f Force unload"
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| 861 | //usage: "\n -a Remove all unused modules (recursively)"
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| 862 | //usage:
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| 863 | //usage:#define rmmod_example_usage
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| 864 | //usage: "$ rmmod tulip\n"
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| 865 |
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| 866 | //usage:#define modprobe_trivial_usage
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[3621] | 867 | //usage: "[-qfwrsv] MODULE [SYMBOL=VALUE]..."
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[2725] | 868 | //usage:#define modprobe_full_usage "\n\n"
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[3232] | 869 | //usage: " -r Remove MODULE (stacks) or do autoclean"
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[2725] | 870 | //usage: "\n -q Quiet"
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| 871 | //usage: "\n -v Verbose"
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| 872 | //usage: "\n -f Force"
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| 873 | //usage: "\n -w Wait for unload"
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| 874 | //usage: "\n -s Report via syslog instead of stderr"
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| 875 |
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| 876 | //usage:#endif
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| 877 |
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| 878 | int modprobe_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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| 879 | int modprobe_main(int argc UNUSED_PARAM, char **argv)
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| 880 | {
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[3621] | 881 | int exitcode;
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[2725] | 882 | struct utsname uts;
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| 883 | char applet0 = applet_name[0];
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| 884 | IF_FEATURE_MODPROBE_SMALL_OPTIONS_ON_CMDLINE(char *options;)
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| 885 |
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| 886 | /* are we lsmod? -> just dump /proc/modules */
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| 887 | if ('l' == applet0) {
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| 888 | xprint_and_close_file(xfopen_for_read("/proc/modules"));
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| 889 | return EXIT_SUCCESS;
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| 890 | }
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| 891 |
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| 892 | INIT_G();
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| 893 |
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| 894 | /* Prevent ugly corner cases with no modules at all */
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| 895 | modinfo = xzalloc(sizeof(modinfo[0]));
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| 896 |
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| 897 | if ('i' != applet0) { /* not insmod */
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| 898 | /* Goto modules directory */
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| 899 | xchdir(CONFIG_DEFAULT_MODULES_DIR);
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| 900 | }
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| 901 | uname(&uts); /* never fails */
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| 902 |
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| 903 | /* depmod? */
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| 904 | if ('d' == applet0) {
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| 905 | /* Supported:
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| 906 | * -n: print result to stdout
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| 907 | * -a: process all modules (default)
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| 908 | * optional VERSION parameter
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| 909 | * Ignored:
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| 910 | * -A: do work only if a module is newer than depfile
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| 911 | * -e: report any symbols which a module needs
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| 912 | * which are not supplied by other modules or the kernel
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| 913 | * -F FILE: System.map (symbols for -e)
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| 914 | * -q, -r, -u: noop?
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| 915 | * Not supported:
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| 916 | * -b BASEDIR: (TODO!) modules are in
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| 917 | * $BASEDIR/lib/modules/$VERSION
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| 918 | * -v: human readable deps to stdout
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| 919 | * -V: version (don't want to support it - people may depend
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| 920 | * on it as an indicator of "standard" depmod)
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| 921 | * -h: help (well duh)
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| 922 | * module1.o module2.o parameters (just ignored for now)
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| 923 | */
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| 924 | getopt32(argv, "na" "AeF:qru" /* "b:vV", NULL */, NULL);
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| 925 | argv += optind;
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| 926 | /* if (argv[0] && argv[1]) bb_show_usage(); */
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| 927 | /* Goto $VERSION directory */
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| 928 | xchdir(argv[0] ? argv[0] : uts.release);
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| 929 | /* Force full module scan by asking to find a bogus module.
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| 930 | * This will generate modules.dep.bb as a side effect. */
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| 931 | process_module((char*)"/", NULL);
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| 932 | return !wrote_dep_bb_ok;
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| 933 | }
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| 934 |
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| 935 | /* insmod, modprobe, rmmod require at least one argument */
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| 936 | opt_complementary = "-1";
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| 937 | /* only -q (quiet) and -r (rmmod),
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| 938 | * the rest are accepted and ignored (compat) */
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[3232] | 939 | getopt32(argv, "qrfsvwb");
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[2725] | 940 | argv += optind;
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| 941 |
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| 942 | /* are we rmmod? -> simulate modprobe -r */
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| 943 | if ('r' == applet0) {
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| 944 | option_mask32 |= OPT_r;
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| 945 | }
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| 946 |
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| 947 | if ('i' != applet0) { /* not insmod */
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| 948 | /* Goto $VERSION directory */
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| 949 | xchdir(uts.release);
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| 950 | }
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| 951 |
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| 952 | #if ENABLE_FEATURE_MODPROBE_SMALL_OPTIONS_ON_CMDLINE
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[3621] | 953 | /* If not rmmod/-r, parse possible module options given on command line.
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[2725] | 954 | * insmod/modprobe takes one module name, the rest are parameters. */
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| 955 | options = NULL;
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[3621] | 956 | if (!(option_mask32 & OPT_r)) {
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[2725] | 957 | char **arg = argv;
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| 958 | while (*++arg) {
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| 959 | /* Enclose options in quotes */
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| 960 | char *s = options;
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| 961 | options = xasprintf("%s \"%s\"", s ? s : "", *arg);
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| 962 | free(s);
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| 963 | *arg = NULL;
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| 964 | }
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| 965 | }
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| 966 | #else
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[3621] | 967 | if (!(option_mask32 & OPT_r))
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[2725] | 968 | argv[1] = NULL;
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| 969 | #endif
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| 970 |
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| 971 | if ('i' == applet0) { /* insmod */
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| 972 | size_t len;
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| 973 | void *map;
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| 974 |
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| 975 | len = MAXINT(ssize_t);
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| 976 | map = xmalloc_open_zipped_read_close(*argv, &len);
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| 977 | if (!map)
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| 978 | bb_perror_msg_and_die("can't read '%s'", *argv);
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| 979 | if (init_module(map, len,
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| 980 | IF_FEATURE_MODPROBE_SMALL_OPTIONS_ON_CMDLINE(options ? options : "")
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| 981 | IF_NOT_FEATURE_MODPROBE_SMALL_OPTIONS_ON_CMDLINE("")
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| 982 | ) != 0
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| 983 | ) {
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| 984 | bb_error_msg_and_die("can't insert '%s': %s",
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| 985 | *argv, moderror(errno));
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| 986 | }
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[3621] | 987 | return EXIT_SUCCESS;
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[2725] | 988 | }
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| 989 |
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| 990 | /* Try to load modprobe.dep.bb */
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[3621] | 991 | if ('r' != applet0) { /* not rmmod */
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| 992 | load_dep_bb();
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| 993 | }
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[2725] | 994 |
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| 995 | /* Load/remove modules.
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[3621] | 996 | * Only rmmod/modprobe -r loops here, insmod/modprobe has only argv[0] */
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| 997 | exitcode = EXIT_SUCCESS;
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[2725] | 998 | do {
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[3621] | 999 | exitcode |= process_module(*argv, options);
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[2725] | 1000 | } while (*++argv);
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| 1001 |
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| 1002 | if (ENABLE_FEATURE_CLEAN_UP) {
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| 1003 | IF_FEATURE_MODPROBE_SMALL_OPTIONS_ON_CMDLINE(free(options);)
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| 1004 | }
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[3621] | 1005 | return exitcode;
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[2725] | 1006 | }
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