Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1 | /* vi: set sw=4 ts=4: */ |
Erik Andersen | 6f23cec | 1999-12-15 22:14:12 +0000 | [diff] [blame] | 2 | /* |
| 3 | * Mini lsmod implementation for busybox |
| 4 | * |
Eric Andersen | c7bda1c | 2004-03-15 08:29:22 +0000 | [diff] [blame] | 5 | * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org> |
Erik Andersen | 6f23cec | 1999-12-15 22:14:12 +0000 | [diff] [blame] | 6 | * |
Eric Andersen | 21adca7 | 2000-12-06 18:18:26 +0000 | [diff] [blame] | 7 | * Modified by Alcove, Julien Gaulmin <julien.gaulmin@alcove.fr> and |
| 8 | * Nicolas Ferre <nicolas.ferre@alcove.fr> to support pre 2.1 kernels |
| 9 | * (which lack the query_module() interface). |
| 10 | * |
Bernhard Reutner-Fischer | deda6a5 | 2006-06-03 19:35:15 +0000 | [diff] [blame] | 11 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. |
Erik Andersen | 6f23cec | 1999-12-15 22:14:12 +0000 | [diff] [blame] | 12 | */ |
| 13 | |
Denis Vlasenko | b6adbf1 | 2007-05-26 19:00:18 +0000 | [diff] [blame] | 14 | #include "libbb.h" |
Eric Andersen | be0dc0d | 2000-08-21 19:25:16 +0000 | [diff] [blame] | 15 | |
| 16 | |
Denis Vlasenko | e324184 | 2007-08-13 10:36:25 +0000 | [diff] [blame^] | 17 | #if !ENABLE_FEATURE_CHECK_TAINTED_MODULE |
Denis Vlasenko | c6f188d | 2006-10-26 00:37:00 +0000 | [diff] [blame] | 18 | static void check_tainted(void) { puts(""); } |
Eric Andersen | 71ae64b | 2002-10-10 04:20:21 +0000 | [diff] [blame] | 19 | #else |
Eric Andersen | 166fa46 | 2002-09-16 05:30:24 +0000 | [diff] [blame] | 20 | #define TAINT_FILENAME "/proc/sys/kernel/tainted" |
| 21 | #define TAINT_PROPRIETORY_MODULE (1<<0) |
| 22 | #define TAINT_FORCED_MODULE (1<<1) |
| 23 | #define TAINT_UNSAFE_SMP (1<<2) |
| 24 | |
Eric Andersen | 71ae64b | 2002-10-10 04:20:21 +0000 | [diff] [blame] | 25 | static void check_tainted(void) |
Eric Andersen | 166fa46 | 2002-09-16 05:30:24 +0000 | [diff] [blame] | 26 | { |
| 27 | int tainted; |
| 28 | FILE *f; |
| 29 | |
| 30 | tainted = 0; |
| 31 | if ((f = fopen(TAINT_FILENAME, "r"))) { |
| 32 | fscanf(f, "%d", &tainted); |
| 33 | fclose(f); |
| 34 | } |
| 35 | if (f && tainted) { |
Eric Andersen | 5286494 | 2002-10-08 09:38:07 +0000 | [diff] [blame] | 36 | printf(" Tainted: %c%c%c\n", |
Eric Andersen | 166fa46 | 2002-09-16 05:30:24 +0000 | [diff] [blame] | 37 | tainted & TAINT_PROPRIETORY_MODULE ? 'P' : 'G', |
| 38 | tainted & TAINT_FORCED_MODULE ? 'F' : ' ', |
| 39 | tainted & TAINT_UNSAFE_SMP ? 'S' : ' '); |
| 40 | } |
| 41 | else { |
Eric Andersen | 5286494 | 2002-10-08 09:38:07 +0000 | [diff] [blame] | 42 | printf(" Not tainted\n"); |
Eric Andersen | 166fa46 | 2002-09-16 05:30:24 +0000 | [diff] [blame] | 43 | } |
| 44 | } |
Eric Andersen | 71ae64b | 2002-10-10 04:20:21 +0000 | [diff] [blame] | 45 | #endif |
Eric Andersen | 166fa46 | 2002-09-16 05:30:24 +0000 | [diff] [blame] | 46 | |
Denis Vlasenko | e324184 | 2007-08-13 10:36:25 +0000 | [diff] [blame^] | 47 | #if ENABLE_FEATURE_QUERY_MODULE_INTERFACE |
Eric Andersen | 21adca7 | 2000-12-06 18:18:26 +0000 | [diff] [blame] | 48 | |
Eric Andersen | be0dc0d | 2000-08-21 19:25:16 +0000 | [diff] [blame] | 49 | struct module_info |
| 50 | { |
| 51 | unsigned long addr; |
| 52 | unsigned long size; |
| 53 | unsigned long flags; |
| 54 | long usecount; |
| 55 | }; |
| 56 | |
| 57 | |
Eric Andersen | e76c3b0 | 2001-04-05 03:14:39 +0000 | [diff] [blame] | 58 | int query_module(const char *name, int which, void *buf, size_t bufsize, size_t *ret); |
Eric Andersen | be0dc0d | 2000-08-21 19:25:16 +0000 | [diff] [blame] | 59 | |
Rob Landley | bc68cd1 | 2006-03-10 19:22:06 +0000 | [diff] [blame] | 60 | enum { |
Eric Andersen | be0dc0d | 2000-08-21 19:25:16 +0000 | [diff] [blame] | 61 | /* Values for query_module's which. */ |
Rob Landley | bc68cd1 | 2006-03-10 19:22:06 +0000 | [diff] [blame] | 62 | QM_MODULES = 1, |
| 63 | QM_DEPS = 2, |
| 64 | QM_REFS = 3, |
| 65 | QM_SYMBOLS = 4, |
| 66 | QM_INFO = 5, |
Eric Andersen | be0dc0d | 2000-08-21 19:25:16 +0000 | [diff] [blame] | 67 | |
Eric Andersen | de34e43 | 2000-09-10 16:16:00 +0000 | [diff] [blame] | 68 | /* Bits of module.flags. */ |
Rob Landley | bc68cd1 | 2006-03-10 19:22:06 +0000 | [diff] [blame] | 69 | NEW_MOD_RUNNING = 1, |
| 70 | NEW_MOD_DELETED = 2, |
| 71 | NEW_MOD_AUTOCLEAN = 4, |
| 72 | NEW_MOD_VISITED = 8, |
| 73 | NEW_MOD_USED_ONCE = 16, |
| 74 | NEW_MOD_INITIALIZING = 64 |
| 75 | }; |
Erik Andersen | 6f23cec | 1999-12-15 22:14:12 +0000 | [diff] [blame] | 76 | |
Denis Vlasenko | 06af216 | 2007-02-03 17:28:39 +0000 | [diff] [blame] | 77 | int lsmod_main(int argc, char **argv); |
Rob Landley | dfba741 | 2006-03-06 20:47:33 +0000 | [diff] [blame] | 78 | int lsmod_main(int argc, char **argv) |
Erik Andersen | 6f23cec | 1999-12-15 22:14:12 +0000 | [diff] [blame] | 79 | { |
Eric Andersen | be0dc0d | 2000-08-21 19:25:16 +0000 | [diff] [blame] | 80 | struct module_info info; |
| 81 | char *module_names, *mn, *deps, *dn; |
Matt Kraai | 0f50bca | 2001-04-13 14:40:15 +0000 | [diff] [blame] | 82 | size_t bufsize, depsize, nmod, count, i, j; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 83 | |
Rob Landley | abfe107 | 2006-08-28 19:40:08 +0000 | [diff] [blame] | 84 | module_names = deps = NULL; |
| 85 | bufsize = depsize = 0; |
Denis Vlasenko | bf0a201 | 2006-12-26 10:42:51 +0000 | [diff] [blame] | 86 | while (query_module(NULL, QM_MODULES, module_names, bufsize, &nmod)) { |
Rob Landley | abfe107 | 2006-08-28 19:40:08 +0000 | [diff] [blame] | 87 | if (errno != ENOSPC) bb_perror_msg_and_die("QM_MODULES"); |
| 88 | module_names = xmalloc(bufsize = nmod); |
Eric Andersen | be0dc0d | 2000-08-21 19:25:16 +0000 | [diff] [blame] | 89 | } |
| 90 | |
Matt Kraai | 0f50bca | 2001-04-13 14:40:15 +0000 | [diff] [blame] | 91 | deps = xmalloc(depsize = 256); |
Rob Landley | abfe107 | 2006-08-28 19:40:08 +0000 | [diff] [blame] | 92 | printf("Module\t\t\tSize Used by"); |
Eric Andersen | 166fa46 | 2002-09-16 05:30:24 +0000 | [diff] [blame] | 93 | check_tainted(); |
Eric Andersen | 166fa46 | 2002-09-16 05:30:24 +0000 | [diff] [blame] | 94 | |
Eric Andersen | be0dc0d | 2000-08-21 19:25:16 +0000 | [diff] [blame] | 95 | for (i = 0, mn = module_names; i < nmod; mn += strlen(mn) + 1, i++) { |
| 96 | if (query_module(mn, QM_INFO, &info, sizeof(info), &count)) { |
| 97 | if (errno == ENOENT) { |
| 98 | /* The module was removed out from underneath us. */ |
| 99 | continue; |
| 100 | } |
| 101 | /* else choke */ |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 102 | bb_perror_msg_and_die("module %s: QM_INFO", mn); |
Eric Andersen | be0dc0d | 2000-08-21 19:25:16 +0000 | [diff] [blame] | 103 | } |
Rob Landley | abfe107 | 2006-08-28 19:40:08 +0000 | [diff] [blame] | 104 | while (query_module(mn, QM_REFS, deps, depsize, &count)) { |
Eric Andersen | be0dc0d | 2000-08-21 19:25:16 +0000 | [diff] [blame] | 105 | if (errno == ENOENT) { |
| 106 | /* The module was removed out from underneath us. */ |
| 107 | continue; |
Denis Vlasenko | 9213a9e | 2006-09-17 16:28:10 +0000 | [diff] [blame] | 108 | } else if (errno != ENOSPC) |
Rob Landley | abfe107 | 2006-08-28 19:40:08 +0000 | [diff] [blame] | 109 | bb_perror_msg_and_die("module %s: QM_REFS", mn); |
| 110 | deps = xrealloc(deps, count); |
Eric Andersen | be0dc0d | 2000-08-21 19:25:16 +0000 | [diff] [blame] | 111 | } |
Eric Andersen | 31f9747 | 2002-10-18 22:14:07 +0000 | [diff] [blame] | 112 | printf("%-20s%8lu%4ld", mn, info.size, info.usecount); |
Eric Andersen | de34e43 | 2000-09-10 16:16:00 +0000 | [diff] [blame] | 113 | if (info.flags & NEW_MOD_DELETED) |
Eric Andersen | 31f9747 | 2002-10-18 22:14:07 +0000 | [diff] [blame] | 114 | printf(" (deleted)"); |
Eric Andersen | de34e43 | 2000-09-10 16:16:00 +0000 | [diff] [blame] | 115 | else if (info.flags & NEW_MOD_INITIALIZING) |
Eric Andersen | 31f9747 | 2002-10-18 22:14:07 +0000 | [diff] [blame] | 116 | printf(" (initializing)"); |
Eric Andersen | de34e43 | 2000-09-10 16:16:00 +0000 | [diff] [blame] | 117 | else if (!(info.flags & NEW_MOD_RUNNING)) |
Eric Andersen | 31f9747 | 2002-10-18 22:14:07 +0000 | [diff] [blame] | 118 | printf(" (uninitialized)"); |
Eric Andersen | de34e43 | 2000-09-10 16:16:00 +0000 | [diff] [blame] | 119 | else { |
| 120 | if (info.flags & NEW_MOD_AUTOCLEAN) |
Eric Andersen | 31f9747 | 2002-10-18 22:14:07 +0000 | [diff] [blame] | 121 | printf(" (autoclean) "); |
Eric Andersen | de34e43 | 2000-09-10 16:16:00 +0000 | [diff] [blame] | 122 | if (!(info.flags & NEW_MOD_USED_ONCE)) |
Eric Andersen | 31f9747 | 2002-10-18 22:14:07 +0000 | [diff] [blame] | 123 | printf(" (unused)"); |
Eric Andersen | de34e43 | 2000-09-10 16:16:00 +0000 | [diff] [blame] | 124 | } |
Eric Andersen | 31f9747 | 2002-10-18 22:14:07 +0000 | [diff] [blame] | 125 | if (count) printf(" ["); |
Eric Andersen | afeb965 | 2001-02-24 19:51:54 +0000 | [diff] [blame] | 126 | for (j = 0, dn = deps; j < count; dn += strlen(dn) + 1, j++) { |
| 127 | printf("%s%s", dn, (j==count-1)? "":" "); |
| 128 | } |
Eric Andersen | 31f9747 | 2002-10-18 22:14:07 +0000 | [diff] [blame] | 129 | if (count) printf("]"); |
Eric Andersen | afeb965 | 2001-02-24 19:51:54 +0000 | [diff] [blame] | 130 | |
Denis Vlasenko | c6f188d | 2006-10-26 00:37:00 +0000 | [diff] [blame] | 131 | puts(""); |
Eric Andersen | be0dc0d | 2000-08-21 19:25:16 +0000 | [diff] [blame] | 132 | } |
| 133 | |
Denis Vlasenko | e324184 | 2007-08-13 10:36:25 +0000 | [diff] [blame^] | 134 | #if ENABLE_FEATURE_CLEAN_UP |
Tim Riker | 6fe1960 | 2002-12-13 22:59:15 +0000 | [diff] [blame] | 135 | free(module_names); |
| 136 | #endif |
Eric Andersen | be0dc0d | 2000-08-21 19:25:16 +0000 | [diff] [blame] | 137 | |
Denis Vlasenko | 079f8af | 2006-11-27 16:49:31 +0000 | [diff] [blame] | 138 | return 0; |
Erik Andersen | 6f23cec | 1999-12-15 22:14:12 +0000 | [diff] [blame] | 139 | } |
Eric Andersen | 21adca7 | 2000-12-06 18:18:26 +0000 | [diff] [blame] | 140 | |
Eric Andersen | 71ae64b | 2002-10-10 04:20:21 +0000 | [diff] [blame] | 141 | #else /* CONFIG_FEATURE_QUERY_MODULE_INTERFACE */ |
Eric Andersen | 21adca7 | 2000-12-06 18:18:26 +0000 | [diff] [blame] | 142 | |
Denis Vlasenko | 06af216 | 2007-02-03 17:28:39 +0000 | [diff] [blame] | 143 | int lsmod_main(int argc, char **argv); |
Rob Landley | dfba741 | 2006-03-06 20:47:33 +0000 | [diff] [blame] | 144 | int lsmod_main(int argc, char **argv) |
Eric Andersen | 21adca7 | 2000-12-06 18:18:26 +0000 | [diff] [blame] | 145 | { |
Rob Landley | 86b4d64 | 2006-08-03 17:58:17 +0000 | [diff] [blame] | 146 | FILE *file = xfopen("/proc/modules", "r"); |
| 147 | |
Eric Andersen | 166fa46 | 2002-09-16 05:30:24 +0000 | [diff] [blame] | 148 | printf("Module Size Used by"); |
| 149 | check_tainted(); |
Rob Landley | 4f65360 | 2005-05-04 23:55:06 +0000 | [diff] [blame] | 150 | #if defined(CONFIG_FEATURE_LSMOD_PRETTY_2_6_OUTPUT) |
Rob Landley | 627814b | 2005-05-03 22:34:03 +0000 | [diff] [blame] | 151 | { |
Denis Vlasenko | ea62077 | 2006-10-14 02:23:43 +0000 | [diff] [blame] | 152 | char *line; |
| 153 | while ((line = xmalloc_fgets(file)) != NULL) { |
Denis Vlasenko | 55a9940 | 2006-09-30 20:41:44 +0000 | [diff] [blame] | 154 | char *tok; |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 155 | |
Denis Vlasenko | 55a9940 | 2006-09-30 20:41:44 +0000 | [diff] [blame] | 156 | tok = strtok(line, " \t"); |
| 157 | printf("%-19s", tok); |
| 158 | tok = strtok(NULL, " \t\n"); |
| 159 | printf(" %8s", tok); |
| 160 | tok = strtok(NULL, " \t\n"); |
| 161 | /* Null if no module unloading support. */ |
| 162 | if (tok) { |
| 163 | printf(" %s", tok); |
| 164 | tok = strtok(NULL, "\n"); |
| 165 | if (!tok) |
Denis Vlasenko | b6aae0f | 2007-01-29 22:51:25 +0000 | [diff] [blame] | 166 | tok = (char*)""; |
Denis Vlasenko | 55a9940 | 2006-09-30 20:41:44 +0000 | [diff] [blame] | 167 | /* New-style has commas, or -. If so, |
| 168 | truncate (other fields might follow). */ |
| 169 | else if (strchr(tok, ',')) { |
| 170 | tok = strtok(tok, "\t "); |
| 171 | /* Strip trailing comma. */ |
| 172 | if (tok[strlen(tok)-1] == ',') |
| 173 | tok[strlen(tok)-1] = '\0'; |
| 174 | } else if (tok[0] == '-' |
Denis Vlasenko | b6aae0f | 2007-01-29 22:51:25 +0000 | [diff] [blame] | 175 | && (tok[1] == '\0' || isspace(tok[1])) |
| 176 | ) { |
| 177 | tok = (char*)""; |
| 178 | } |
| 179 | printf(" %s", tok); |
Denis Vlasenko | 55a9940 | 2006-09-30 20:41:44 +0000 | [diff] [blame] | 180 | } |
Denis Vlasenko | ea62077 | 2006-10-14 02:23:43 +0000 | [diff] [blame] | 181 | puts(""); |
| 182 | free(line); |
Denis Vlasenko | 55a9940 | 2006-09-30 20:41:44 +0000 | [diff] [blame] | 183 | } |
| 184 | fclose(file); |
Rob Landley | 627814b | 2005-05-03 22:34:03 +0000 | [diff] [blame] | 185 | } |
| 186 | #else |
Rob Landley | 86b4d64 | 2006-08-03 17:58:17 +0000 | [diff] [blame] | 187 | xprint_and_close_file(file); |
Rob Landley | 627814b | 2005-05-03 22:34:03 +0000 | [diff] [blame] | 188 | #endif /* CONFIG_FEATURE_2_6_MODULES */ |
Rob Landley | 86b4d64 | 2006-08-03 17:58:17 +0000 | [diff] [blame] | 189 | return EXIT_SUCCESS; |
Eric Andersen | 21adca7 | 2000-12-06 18:18:26 +0000 | [diff] [blame] | 190 | } |
| 191 | |
Eric Andersen | 71ae64b | 2002-10-10 04:20:21 +0000 | [diff] [blame] | 192 | #endif /* CONFIG_FEATURE_QUERY_MODULE_INTERFACE */ |