[821] | 1 | /* vi: set sw=4 ts=4: */
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| 2 | /*
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| 3 | * Mini lsmod implementation for busybox
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| 4 | *
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| 5 | * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
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[2725] | 6 | * Copyright (C) 2008 by Vladimir Dronnikov <dronnikov@gmail.com>
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[821] | 7 | *
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[2725] | 8 | * Licensed under GPLv2 or later, see file LICENSE in this source tree.
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[821] | 9 | */
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| 10 |
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[2725] | 11 | //applet:IF_LSMOD(APPLET(lsmod, _BB_DIR_SBIN, _BB_SUID_DROP))
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| 12 |
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| 13 | //usage:#if !ENABLE_MODPROBE_SMALL
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| 14 | //usage:#define lsmod_trivial_usage
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| 15 | //usage: ""
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| 16 | //usage:#define lsmod_full_usage "\n\n"
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| 17 | //usage: "List the currently loaded kernel modules"
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| 18 | //usage:#endif
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| 19 |
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[1765] | 20 | #include "libbb.h"
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[2725] | 21 | #include "unicode.h"
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[821] | 22 |
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[2725] | 23 | #if ENABLE_FEATURE_CHECK_TAINTED_MODULE
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| 24 | enum {
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| 25 | TAINT_PROPRIETORY_MODULE = (1 << 0),
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| 26 | TAINT_FORCED_MODULE = (1 << 1),
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| 27 | TAINT_UNSAFE_SMP = (1 << 2),
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| 28 | };
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[821] | 29 |
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| 30 | static void check_tainted(void)
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| 31 | {
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[2725] | 32 | int tainted = 0;
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| 33 | char *buf = xmalloc_open_read_close("/proc/sys/kernel/tainted", NULL);
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| 34 | if (buf) {
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| 35 | tainted = atoi(buf);
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| 36 | if (ENABLE_FEATURE_CLEAN_UP)
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| 37 | free(buf);
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| 38 | }
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[821] | 39 |
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[2725] | 40 | if (tainted) {
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[821] | 41 | printf(" Tainted: %c%c%c\n",
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| 42 | tainted & TAINT_PROPRIETORY_MODULE ? 'P' : 'G',
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| 43 | tainted & TAINT_FORCED_MODULE ? 'F' : ' ',
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| 44 | tainted & TAINT_UNSAFE_SMP ? 'S' : ' ');
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[2725] | 45 | } else {
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| 46 | puts(" Not tainted");
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[821] | 47 | }
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| 48 | }
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[2725] | 49 | #else
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| 50 | static void check_tainted(void) { putchar('\n'); }
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[821] | 51 | #endif
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| 52 |
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[2725] | 53 | int lsmod_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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| 54 | int lsmod_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
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[821] | 55 | {
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[2725] | 56 | #if ENABLE_FEATURE_LSMOD_PRETTY_2_6_OUTPUT
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| 57 | char *token[4];
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| 58 | parser_t *parser = config_open("/proc/modules");
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| 59 | init_unicode();
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[821] | 60 |
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[2725] | 61 | printf("%-24sSize Used by", "Module");
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[821] | 62 | check_tainted();
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| 63 |
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[2725] | 64 | if (ENABLE_FEATURE_2_4_MODULES
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| 65 | && get_linux_version_code() < KERNEL_VERSION(2,6,0)
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| 66 | ) {
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| 67 | while (config_read(parser, token, 4, 3, "# \t", PARSE_NORMAL)) {
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| 68 | if (token[3] != NULL && token[3][0] == '[') {
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| 69 | token[3]++;
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| 70 | token[3][strlen(token[3])-1] = '\0';
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| 71 | } else
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| 72 | token[3] = (char *) "";
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| 73 | # if ENABLE_UNICODE_SUPPORT
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| 74 | {
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| 75 | uni_stat_t uni_stat;
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| 76 | char *uni_name = unicode_conv_to_printable(&uni_stat, token[0]);
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| 77 | unsigned pad_len = (uni_stat.unicode_width > 19) ? 0 : 19 - uni_stat.unicode_width;
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| 78 | printf("%s%*s %8s %2s %s\n", uni_name, pad_len, "", token[1], token[2], token[3]);
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| 79 | free(uni_name);
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[821] | 80 | }
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[2725] | 81 | # else
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| 82 | printf("%-19s %8s %2s %s\n", token[0], token[1], token[2], token[3]);
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| 83 | # endif
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[821] | 84 | }
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[2725] | 85 | } else {
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| 86 | while (config_read(parser, token, 4, 4, "# \t", PARSE_NORMAL & ~PARSE_GREEDY)) {
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| 87 | // N.B. token[3] is either '-' (module is not used by others)
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| 88 | // or comma-separated list ended by comma
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| 89 | // so trimming the trailing char is just what we need!
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| 90 | token[3][strlen(token[3])-1] = '\0';
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| 91 | # if ENABLE_UNICODE_SUPPORT
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| 92 | {
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| 93 | uni_stat_t uni_stat;
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| 94 | char *uni_name = unicode_conv_to_printable(&uni_stat, token[0]);
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| 95 | unsigned pad_len = (uni_stat.unicode_width > 19) ? 0 : 19 - uni_stat.unicode_width;
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| 96 | printf("%s%*s %8s %2s %s\n", uni_name, pad_len, "", token[1], token[2], token[3]);
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| 97 | free(uni_name);
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[1765] | 98 | }
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[2725] | 99 | # else
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| 100 | printf("%-19s %8s %2s %s\n", token[0], token[1], token[2], token[3]);
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| 101 | # endif
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[1765] | 102 | }
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[821] | 103 | }
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[2725] | 104 | if (ENABLE_FEATURE_CLEAN_UP)
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| 105 | config_close(parser);
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[821] | 106 | #else
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[2725] | 107 | check_tainted();
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| 108 | xprint_and_close_file(xfopen_for_read("/proc/modules"));
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| 109 | #endif
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[1765] | 110 | return EXIT_SUCCESS;
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[821] | 111 | }
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