| /* vi: set sw=4 ts=4: */ |
| /* |
| * Mini lsmod implementation for busybox |
| * |
| * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org> |
| * Copyright (C) 2008 by Vladimir Dronnikov <dronnikov@gmail.com> |
| * |
| * Licensed under GPLv2 or later, see file LICENSE in this source tree. |
| */ |
| //config:config LSMOD |
| //config: bool "lsmod (1.9 kb)" |
| //config: default y |
| //config: select PLATFORM_LINUX |
| //config: help |
| //config: lsmod is used to display a list of loaded modules. |
| //config: |
| //config:config FEATURE_LSMOD_PRETTY_2_6_OUTPUT |
| //config: bool "Pretty output" |
| //config: default y |
| //config: depends on LSMOD && !MODPROBE_SMALL |
| //config: help |
| //config: This option makes output format of lsmod adjusted to |
| //config: the format of module-init-tools for Linux kernel 2.6. |
| //config: Increases size somewhat. |
| |
| //applet:IF_LSMOD(IF_NOT_MODPROBE_SMALL(APPLET_NOEXEC(lsmod, lsmod, BB_DIR_SBIN, BB_SUID_DROP, lsmod))) |
| |
| //kbuild:ifneq ($(CONFIG_MODPROBE_SMALL),y) |
| //kbuild:lib-$(CONFIG_LSMOD) += lsmod.o modutils.o |
| //kbuild:endif |
| |
| //usage:#if !ENABLE_MODPROBE_SMALL |
| //usage:#define lsmod_trivial_usage |
| //usage: "" |
| //usage:#define lsmod_full_usage "\n\n" |
| //usage: "List loaded kernel modules" |
| //usage:#endif |
| |
| #include "libbb.h" |
| #include "unicode.h" |
| |
| #if ENABLE_FEATURE_CHECK_TAINTED_MODULE |
| enum { |
| TAINT_PROPRIETORY_MODULE = (1 << 0), |
| TAINT_FORCED_MODULE = (1 << 1), |
| TAINT_UNSAFE_SMP = (1 << 2), |
| }; |
| |
| static void check_tainted(void) |
| { |
| int tainted = 0; |
| char *buf = xmalloc_open_read_close("/proc/sys/kernel/tainted", NULL); |
| if (buf) { |
| tainted = atoi(buf); |
| if (ENABLE_FEATURE_CLEAN_UP) |
| free(buf); |
| } |
| |
| if (tainted) { |
| printf(" Tainted: %c%c%c\n", |
| tainted & TAINT_PROPRIETORY_MODULE ? 'P' : 'G', |
| tainted & TAINT_FORCED_MODULE ? 'F' : ' ', |
| tainted & TAINT_UNSAFE_SMP ? 'S' : ' '); |
| } else { |
| puts(" Not tainted"); |
| } |
| } |
| #else |
| static void check_tainted(void) { putchar('\n'); } |
| #endif |
| |
| int lsmod_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
| int lsmod_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM) |
| { |
| #if ENABLE_FEATURE_LSMOD_PRETTY_2_6_OUTPUT |
| char *token[4]; |
| parser_t *parser = config_open("/proc/modules"); |
| init_unicode(); |
| |
| printf("%-24sSize Used by", "Module"); |
| check_tainted(); |
| |
| if (ENABLE_FEATURE_2_4_MODULES |
| && get_linux_version_code() < KERNEL_VERSION(2,6,0) |
| ) { |
| while (config_read(parser, token, 4, 3, "# \t", PARSE_NORMAL)) { |
| if (token[3] != NULL && token[3][0] == '[') { |
| token[3]++; |
| token[3][strlen(token[3])-1] = '\0'; |
| } else |
| token[3] = (char *) ""; |
| # if ENABLE_UNICODE_SUPPORT |
| { |
| uni_stat_t uni_stat; |
| char *uni_name = unicode_conv_to_printable(&uni_stat, token[0]); |
| unsigned pad_len = (uni_stat.unicode_width > 19) ? 0 : 19 - uni_stat.unicode_width; |
| printf("%s%*s %8s %2s %s\n", uni_name, pad_len, "", token[1], token[2], token[3]); |
| free(uni_name); |
| } |
| # else |
| printf("%-19s %8s %2s %s\n", token[0], token[1], token[2], token[3]); |
| # endif |
| } |
| } else { |
| while (config_read(parser, token, 4, 4, "# \t", PARSE_NORMAL & ~PARSE_GREEDY)) { |
| // N.B. token[3] is either '-' (module is not used by others) |
| // or comma-separated list ended by comma |
| // so trimming the trailing char is just what we need! |
| if (token[3][0]) |
| token[3][strlen(token[3]) - 1] = '\0'; |
| # if ENABLE_UNICODE_SUPPORT |
| { |
| uni_stat_t uni_stat; |
| char *uni_name = unicode_conv_to_printable(&uni_stat, token[0]); |
| unsigned pad_len = (uni_stat.unicode_width > 19) ? 0 : 19 - uni_stat.unicode_width; |
| printf("%s%*s %8s %2s %s\n", uni_name, pad_len, "", token[1], token[2], token[3]); |
| free(uni_name); |
| } |
| # else |
| printf("%-19s %8s %2s %s\n", token[0], token[1], token[2], token[3]); |
| # endif |
| } |
| } |
| if (ENABLE_FEATURE_CLEAN_UP) |
| config_close(parser); |
| #else |
| check_tainted(); |
| xprint_and_close_file(xfopen_for_read("/proc/modules")); |
| #endif |
| return EXIT_SUCCESS; |
| } |