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 | 8ec10a9 | 2001-01-27 09:33:39 +0000 | [diff] [blame] | 5 | * Copyright (C) 1999,2000,2001 by Lineo, inc. |
Erik Andersen | 6f23cec | 1999-12-15 22:14:12 +0000 | [diff] [blame] | 6 | * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org> |
| 7 | * |
Eric Andersen | 21adca7 | 2000-12-06 18:18:26 +0000 | [diff] [blame] | 8 | * Modified by Alcove, Julien Gaulmin <julien.gaulmin@alcove.fr> and |
| 9 | * Nicolas Ferre <nicolas.ferre@alcove.fr> to support pre 2.1 kernels |
| 10 | * (which lack the query_module() interface). |
| 11 | * |
Erik Andersen | 6f23cec | 1999-12-15 22:14:12 +0000 | [diff] [blame] | 12 | * This program is free software; you can redistribute it and/or modify |
| 13 | * it under the terms of the GNU General Public License as published by |
| 14 | * the Free Software Foundation; either version 2 of the License, or |
| 15 | * (at your option) any later version. |
| 16 | * |
| 17 | * This program is distributed in the hope that it will be useful, |
| 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 20 | * General Public License for more details. |
| 21 | * |
| 22 | * You should have received a copy of the GNU General Public License |
| 23 | * along with this program; if not, write to the Free Software |
| 24 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 25 | * |
| 26 | */ |
| 27 | |
Eric Andersen | be0dc0d | 2000-08-21 19:25:16 +0000 | [diff] [blame] | 28 | #include <stdlib.h> |
Erik Andersen | 6f23cec | 1999-12-15 22:14:12 +0000 | [diff] [blame] | 29 | #include <stdio.h> |
Eric Andersen | eba8ed7 | 2001-03-09 14:36:42 +0000 | [diff] [blame] | 30 | #include <string.h> |
Eric Andersen | be0dc0d | 2000-08-21 19:25:16 +0000 | [diff] [blame] | 31 | #include <stddef.h> |
| 32 | #include <errno.h> |
| 33 | #include <unistd.h> |
| 34 | #include <dirent.h> |
| 35 | #include <ctype.h> |
| 36 | #include <assert.h> |
| 37 | #include <getopt.h> |
| 38 | #include <sys/utsname.h> |
Eric Andersen | 21adca7 | 2000-12-06 18:18:26 +0000 | [diff] [blame] | 39 | #include <sys/file.h> |
Eric Andersen | cbe31da | 2001-02-20 06:14:08 +0000 | [diff] [blame] | 40 | #include "busybox.h" |
Eric Andersen | be0dc0d | 2000-08-21 19:25:16 +0000 | [diff] [blame] | 41 | |
| 42 | |
| 43 | |
Eric Andersen | f5d5e77 | 2001-01-24 23:34:48 +0000 | [diff] [blame] | 44 | #ifdef BB_FEATURE_NEW_MODULE_INTERFACE |
Eric Andersen | 21adca7 | 2000-12-06 18:18:26 +0000 | [diff] [blame] | 45 | |
Eric Andersen | be0dc0d | 2000-08-21 19:25:16 +0000 | [diff] [blame] | 46 | struct module_info |
| 47 | { |
| 48 | unsigned long addr; |
| 49 | unsigned long size; |
| 50 | unsigned long flags; |
| 51 | long usecount; |
| 52 | }; |
| 53 | |
| 54 | |
Eric Andersen | e76c3b0 | 2001-04-05 03:14:39 +0000 | [diff] [blame] | 55 | 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] | 56 | |
| 57 | /* Values for query_module's which. */ |
Mark Whitley | 59ab025 | 2001-01-23 22:30:04 +0000 | [diff] [blame] | 58 | static const int QM_MODULES = 1; |
| 59 | static const int QM_DEPS = 2; |
| 60 | static const int QM_REFS = 3; |
| 61 | static const int QM_SYMBOLS = 4; |
| 62 | static const int QM_INFO = 5; |
Eric Andersen | be0dc0d | 2000-08-21 19:25:16 +0000 | [diff] [blame] | 63 | |
Eric Andersen | de34e43 | 2000-09-10 16:16:00 +0000 | [diff] [blame] | 64 | /* Bits of module.flags. */ |
Mark Whitley | 59ab025 | 2001-01-23 22:30:04 +0000 | [diff] [blame] | 65 | static const int NEW_MOD_RUNNING = 1; |
| 66 | static const int NEW_MOD_DELETED = 2; |
| 67 | static const int NEW_MOD_AUTOCLEAN = 4; |
| 68 | static const int NEW_MOD_VISITED = 8; |
| 69 | static const int NEW_MOD_USED_ONCE = 16; |
| 70 | static const int NEW_MOD_INITIALIZING = 64; |
Erik Andersen | 6f23cec | 1999-12-15 22:14:12 +0000 | [diff] [blame] | 71 | |
Matt Kraai | 0f50bca | 2001-04-13 14:40:15 +0000 | [diff] [blame^] | 72 | static int my_query_module(const char *name, int which, void **buf, |
| 73 | size_t *bufsize, size_t *ret) |
| 74 | { |
| 75 | int my_ret; |
| 76 | |
| 77 | my_ret = query_module(name, which, *buf, *bufsize, ret); |
| 78 | |
| 79 | if (my_ret == -1 && errno == ENOSPC) { |
| 80 | *buf = xrealloc(*buf, *ret); |
| 81 | *bufsize = *ret; |
| 82 | |
| 83 | my_ret = query_module(name, which, *buf, *bufsize, ret); |
| 84 | } |
| 85 | |
| 86 | return my_ret; |
| 87 | } |
Erik Andersen | 6f23cec | 1999-12-15 22:14:12 +0000 | [diff] [blame] | 88 | |
Erik Andersen | 6f23cec | 1999-12-15 22:14:12 +0000 | [diff] [blame] | 89 | extern int lsmod_main(int argc, char **argv) |
| 90 | { |
Eric Andersen | be0dc0d | 2000-08-21 19:25:16 +0000 | [diff] [blame] | 91 | struct module_info info; |
| 92 | char *module_names, *mn, *deps, *dn; |
Matt Kraai | 0f50bca | 2001-04-13 14:40:15 +0000 | [diff] [blame^] | 93 | size_t bufsize, depsize, nmod, count, i, j; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 94 | |
Eric Andersen | be0dc0d | 2000-08-21 19:25:16 +0000 | [diff] [blame] | 95 | module_names = xmalloc(bufsize = 256); |
Matt Kraai | 0f50bca | 2001-04-13 14:40:15 +0000 | [diff] [blame^] | 96 | if (my_query_module(NULL, QM_MODULES, (void **)&module_names, &bufsize, |
| 97 | &nmod)) { |
Matt Kraai | 0dab829 | 2000-12-18 03:08:29 +0000 | [diff] [blame] | 98 | perror_msg_and_die("QM_MODULES"); |
Eric Andersen | be0dc0d | 2000-08-21 19:25:16 +0000 | [diff] [blame] | 99 | } |
| 100 | |
Matt Kraai | 0f50bca | 2001-04-13 14:40:15 +0000 | [diff] [blame^] | 101 | deps = xmalloc(depsize = 256); |
Eric Andersen | be0dc0d | 2000-08-21 19:25:16 +0000 | [diff] [blame] | 102 | printf("Module Size Used by\n"); |
| 103 | for (i = 0, mn = module_names; i < nmod; mn += strlen(mn) + 1, i++) { |
| 104 | if (query_module(mn, QM_INFO, &info, sizeof(info), &count)) { |
| 105 | if (errno == ENOENT) { |
| 106 | /* The module was removed out from underneath us. */ |
| 107 | continue; |
| 108 | } |
| 109 | /* else choke */ |
Matt Kraai | 0dab829 | 2000-12-18 03:08:29 +0000 | [diff] [blame] | 110 | perror_msg_and_die("module %s: QM_INFO", mn); |
Eric Andersen | be0dc0d | 2000-08-21 19:25:16 +0000 | [diff] [blame] | 111 | } |
Matt Kraai | 0f50bca | 2001-04-13 14:40:15 +0000 | [diff] [blame^] | 112 | if (my_query_module(mn, QM_REFS, (void **)&deps, &depsize, &count)) { |
Eric Andersen | be0dc0d | 2000-08-21 19:25:16 +0000 | [diff] [blame] | 113 | if (errno == ENOENT) { |
| 114 | /* The module was removed out from underneath us. */ |
| 115 | continue; |
| 116 | } |
Matt Kraai | 0f50bca | 2001-04-13 14:40:15 +0000 | [diff] [blame^] | 117 | perror_msg_and_die("module %s: QM_REFS", mn); |
Eric Andersen | be0dc0d | 2000-08-21 19:25:16 +0000 | [diff] [blame] | 118 | } |
| 119 | printf("%-20s%8lu%4ld ", mn, info.size, info.usecount); |
Eric Andersen | de34e43 | 2000-09-10 16:16:00 +0000 | [diff] [blame] | 120 | if (info.flags & NEW_MOD_DELETED) |
Eric Andersen | ccb0a9b | 2000-09-12 16:20:49 +0000 | [diff] [blame] | 121 | printf("(deleted)"); |
Eric Andersen | de34e43 | 2000-09-10 16:16:00 +0000 | [diff] [blame] | 122 | else if (info.flags & NEW_MOD_INITIALIZING) |
Eric Andersen | ccb0a9b | 2000-09-12 16:20:49 +0000 | [diff] [blame] | 123 | printf("(initializing)"); |
Eric Andersen | de34e43 | 2000-09-10 16:16:00 +0000 | [diff] [blame] | 124 | else if (!(info.flags & NEW_MOD_RUNNING)) |
Eric Andersen | ccb0a9b | 2000-09-12 16:20:49 +0000 | [diff] [blame] | 125 | printf("(uninitialized)"); |
Eric Andersen | de34e43 | 2000-09-10 16:16:00 +0000 | [diff] [blame] | 126 | else { |
| 127 | if (info.flags & NEW_MOD_AUTOCLEAN) |
Matt Kraai | 721119e | 2000-09-19 05:25:12 +0000 | [diff] [blame] | 128 | printf("(autoclean) "); |
Eric Andersen | de34e43 | 2000-09-10 16:16:00 +0000 | [diff] [blame] | 129 | if (!(info.flags & NEW_MOD_USED_ONCE)) |
Eric Andersen | ccb0a9b | 2000-09-12 16:20:49 +0000 | [diff] [blame] | 130 | printf("(unused)"); |
Eric Andersen | de34e43 | 2000-09-10 16:16:00 +0000 | [diff] [blame] | 131 | } |
Eric Andersen | afeb965 | 2001-02-24 19:51:54 +0000 | [diff] [blame] | 132 | if (count) printf("["); |
| 133 | for (j = 0, dn = deps; j < count; dn += strlen(dn) + 1, j++) { |
| 134 | printf("%s%s", dn, (j==count-1)? "":" "); |
| 135 | } |
| 136 | if (count) printf("] "); |
| 137 | |
Eric Andersen | ccb0a9b | 2000-09-12 16:20:49 +0000 | [diff] [blame] | 138 | printf("\n"); |
Eric Andersen | be0dc0d | 2000-08-21 19:25:16 +0000 | [diff] [blame] | 139 | } |
| 140 | |
| 141 | |
| 142 | return( 0); |
Erik Andersen | 6f23cec | 1999-12-15 22:14:12 +0000 | [diff] [blame] | 143 | } |
Eric Andersen | 21adca7 | 2000-12-06 18:18:26 +0000 | [diff] [blame] | 144 | |
Eric Andersen | f5d5e77 | 2001-01-24 23:34:48 +0000 | [diff] [blame] | 145 | #else /*BB_FEATURE_OLD_MODULE_INTERFACE*/ |
Eric Andersen | 21adca7 | 2000-12-06 18:18:26 +0000 | [diff] [blame] | 146 | |
Eric Andersen | 21adca7 | 2000-12-06 18:18:26 +0000 | [diff] [blame] | 147 | extern int lsmod_main(int argc, char **argv) |
| 148 | { |
| 149 | int fd, i; |
| 150 | char line[128]; |
| 151 | |
| 152 | puts("Module Size Used by"); |
| 153 | fflush(stdout); |
| 154 | |
| 155 | if ((fd = open("/proc/modules", O_RDONLY)) >= 0 ) { |
| 156 | while ((i = read(fd, line, sizeof(line))) > 0) { |
| 157 | write(fileno(stdout), line, i); |
| 158 | } |
| 159 | close(fd); |
| 160 | return 0; |
| 161 | } |
Matt Kraai | 0dab829 | 2000-12-18 03:08:29 +0000 | [diff] [blame] | 162 | perror_msg_and_die("/proc/modules"); |
Eric Andersen | 21adca7 | 2000-12-06 18:18:26 +0000 | [diff] [blame] | 163 | return 1; |
| 164 | } |
| 165 | |
Eric Andersen | f5d5e77 | 2001-01-24 23:34:48 +0000 | [diff] [blame] | 166 | #endif /*BB_FEATURE_OLD_MODULE_INTERFACE*/ |