Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 1 | /* |
| 2 | * kmod-modprob - manage linux kernel modules using libkmod. |
| 3 | * |
| 4 | * Copyright (C) 2011 ProFUSION embedded systems |
| 5 | * |
Lucas De Marchi | cb451f3 | 2011-12-12 18:24:35 -0200 | [diff] [blame] | 6 | * This program is free software: you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation, either version 2 of the License, or |
| 9 | * (at your option) any later version. |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
Lucas De Marchi | cb451f3 | 2011-12-12 18:24:35 -0200 | [diff] [blame] | 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 15 | * |
Lucas De Marchi | cb451f3 | 2011-12-12 18:24:35 -0200 | [diff] [blame] | 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 18 | */ |
Lucas De Marchi | cb451f3 | 2011-12-12 18:24:35 -0200 | [diff] [blame] | 19 | |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 20 | #include <stdio.h> |
| 21 | #include <stdlib.h> |
| 22 | #include <getopt.h> |
| 23 | #include <errno.h> |
| 24 | #include <string.h> |
| 25 | #include <sys/types.h> |
| 26 | #include <sys/stat.h> |
| 27 | #include <sys/utsname.h> |
| 28 | #include <unistd.h> |
| 29 | #include <syslog.h> |
| 30 | #include <limits.h> |
| 31 | |
| 32 | #include "libkmod.h" |
| 33 | |
| 34 | static int log_priority = LOG_CRIT; |
| 35 | static int use_syslog = 0; |
| 36 | |
| 37 | #define DEFAULT_VERBOSE LOG_WARNING |
| 38 | static int verbose = DEFAULT_VERBOSE; |
| 39 | static int dry_run = 0; |
| 40 | static int ignore_loaded = 0; |
Lucas De Marchi | 8122985 | 2011-12-16 02:58:48 -0200 | [diff] [blame] | 41 | static int lookup_only = 0; |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 42 | static int first_time = 0; |
| 43 | static int ignore_commands = 0; |
| 44 | static int use_blacklist = 0; |
| 45 | static int force = 0; |
| 46 | static int strip_modversion = 0; |
| 47 | static int strip_vermagic = 0; |
| 48 | static int remove_dependencies = 0; |
| 49 | |
| 50 | static const char cmdopts_s[] = "arRibft:lDcnC:d:S:sqvVh"; |
| 51 | static const struct option cmdopts[] = { |
| 52 | {"all", no_argument, 0, 'a'}, |
| 53 | {"remove", no_argument, 0, 'r'}, |
| 54 | {"remove-dependencies", no_argument, 0, 5}, |
| 55 | {"resolve-alias", no_argument, 0, 'R'}, |
| 56 | {"first-time", no_argument, 0, 3}, |
| 57 | {"ignore-install", no_argument, 0, 'i'}, |
| 58 | {"ignore-remove", no_argument, 0, 'i'}, |
| 59 | {"use-blacklist", no_argument, 0, 'b'}, |
| 60 | {"force", no_argument, 0, 'f'}, |
| 61 | {"force-modversion", no_argument, 0, 2}, |
| 62 | {"force-vermagic", no_argument, 0, 1}, |
| 63 | |
| 64 | {"type", required_argument, 0, 't'}, |
| 65 | {"list", no_argument, 0, 'l'}, |
| 66 | {"show-depends", no_argument, 0, 'D'}, |
| 67 | {"showconfig", no_argument, 0, 'c'}, |
| 68 | {"show-config", no_argument, 0, 'c'}, |
| 69 | {"show-modversions", no_argument, 0, 4}, |
| 70 | {"dump-modversions", no_argument, 0, 4}, |
| 71 | |
| 72 | {"dry-run", no_argument, 0, 'n'}, |
| 73 | {"show", no_argument, 0, 'n'}, |
| 74 | |
| 75 | {"config", required_argument, 0, 'C'}, |
| 76 | {"dirname", required_argument, 0, 'd'}, |
| 77 | {"set-version", required_argument, 0, 'S'}, |
| 78 | |
| 79 | {"syslog", no_argument, 0, 's'}, |
| 80 | {"quiet", no_argument, 0, 'q'}, |
| 81 | {"verbose", no_argument, 0, 'v'}, |
| 82 | {"version", no_argument, 0, 'V'}, |
| 83 | {"help", no_argument, 0, 'h'}, |
| 84 | {NULL, 0, 0, 0} |
| 85 | }; |
| 86 | |
| 87 | static void help(const char *progname) |
| 88 | { |
| 89 | fprintf(stderr, |
| 90 | "Usage:\n" |
| 91 | "\t%s [options] [-i] [-b] modulename\n" |
| 92 | "\t%s [options] -a [-i] [-b] modulename [modulename...]\n" |
| 93 | "\t%s [options] -r [-i] modulename\n" |
| 94 | "\t%s [options] -r -a [-i] modulename [modulename...]\n" |
| 95 | "\t%s [options] -l [-t dirname] [wildcard]\n" |
| 96 | "\t%s [options] -c\n" |
| 97 | "\t%s [options] --dump-modversions filename\n" |
| 98 | "Management Options:\n" |
Gustavo Sverzut Barbieri | ab70dce | 2011-12-19 13:02:15 -0200 | [diff] [blame] | 99 | "\t-a, --all Consider every non-argument to\n" |
| 100 | "\t be a module name to be inserted\n" |
| 101 | "\t or removed (-r)\n" |
| 102 | "\t-r, --remove Remove modules instead of inserting\n" |
| 103 | "\t --remove-dependencies Also remove modules depending on it\n" |
| 104 | "\t-R, --resolve-alias Only lookup and print alias and exit\n" |
| 105 | "\t --first-time Fail if module already inserted or removed\n" |
| 106 | "\t-i, --ignore-install Ignore install commands\n" |
| 107 | "\t-i, --ignore-remove Ignore remove commands\n" |
| 108 | "\t-b, --use-blacklist Apply blacklist to resolved alias.\n" |
| 109 | "\t-f, --force Force module insertion or removal.\n" |
| 110 | "\t implies --force-modversions and\n" |
| 111 | "\t --force-vermagic\n" |
| 112 | "\t --force-modversion Ignore module's version\n" |
| 113 | "\t --force-vermagic Ignore module's version magic\n" |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 114 | "\n" |
| 115 | "Query Options:\n" |
Gustavo Sverzut Barbieri | ab70dce | 2011-12-19 13:02:15 -0200 | [diff] [blame] | 116 | "\t-t, --type=DIR Limit type used by --list\n" |
| 117 | "\t-l, --list List known modules\n" |
| 118 | "\t-D, --show-depends Only print module dependencies and exit\n" |
| 119 | "\t-c, --showconfig Print out known configuration and exit\n" |
| 120 | "\t-c, --show-config Same as --showconfig\n" |
| 121 | "\t --show-modversions Dump module symbol version and exit\n" |
| 122 | "\t --dump-modversions Same as --show-modversions\n" |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 123 | "\n" |
| 124 | "General Options:\n" |
Gustavo Sverzut Barbieri | ab70dce | 2011-12-19 13:02:15 -0200 | [diff] [blame] | 125 | "\t-n, --dry-run Do not execute operations, just print out\n" |
| 126 | "\t-n, --show Same as --dry-run\n" |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 127 | |
Kay Sievers | a308abe | 2011-12-20 17:58:05 +0100 | [diff] [blame^] | 128 | "\t-C, --config=FILE Use FILE instead of " SYSCONFDIR "/modprobe.d\n" |
| 129 | "\t-d, --dirname=DIR Use DIR as filesystem root for " ROOTPREFIX "/lib/modules\n" |
Gustavo Sverzut Barbieri | ab70dce | 2011-12-19 13:02:15 -0200 | [diff] [blame] | 130 | "\t-S, --set-version=VERSION Use VERSION instead of `uname -r`\n" |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 131 | |
| 132 | "\t-s, --syslog print to syslog, not stderr\n" |
| 133 | "\t-q, --quiet disable messages\n" |
| 134 | "\t-v, --verbose enables more messages\n" |
| 135 | "\t-V, --version show version\n" |
| 136 | "\t-h, --help show this help\n", |
| 137 | progname, progname, progname, progname, progname, progname, |
| 138 | progname); |
| 139 | } |
| 140 | |
| 141 | static inline void _show(const char *fmt, ...) |
| 142 | { |
| 143 | va_list args; |
| 144 | |
| 145 | if (verbose <= DEFAULT_VERBOSE) |
| 146 | return; |
| 147 | |
| 148 | va_start(args, fmt); |
| 149 | vfprintf(stdout, fmt, args); |
| 150 | fflush(stdout); |
| 151 | va_end(args); |
| 152 | } |
| 153 | |
| 154 | static inline void _log(int prio, const char *fmt, ...) |
| 155 | { |
| 156 | const char *prioname; |
| 157 | char buf[32], *msg; |
| 158 | va_list args; |
| 159 | |
| 160 | if (prio > verbose) |
| 161 | return; |
| 162 | |
| 163 | va_start(args, fmt); |
| 164 | if (vasprintf(&msg, fmt, args) < 0) |
| 165 | msg = NULL; |
| 166 | va_end(args); |
| 167 | if (msg == NULL) |
| 168 | return; |
| 169 | |
| 170 | switch (prio) { |
| 171 | case LOG_CRIT: |
| 172 | prioname = "FATAL"; |
| 173 | break; |
| 174 | case LOG_ERR: |
| 175 | prioname = "ERROR"; |
| 176 | break; |
| 177 | case LOG_WARNING: |
| 178 | prioname = "WARNING"; |
| 179 | break; |
| 180 | case LOG_NOTICE: |
| 181 | prioname = "NOTICE"; |
| 182 | break; |
| 183 | case LOG_INFO: |
| 184 | prioname = "INFO"; |
| 185 | break; |
| 186 | case LOG_DEBUG: |
| 187 | prioname = "DEBUG"; |
| 188 | break; |
| 189 | default: |
| 190 | snprintf(buf, sizeof(buf), "LOG-%03d", prio); |
| 191 | prioname = buf; |
| 192 | } |
| 193 | |
| 194 | if (use_syslog) |
| 195 | syslog(LOG_NOTICE, "%s: %s", prioname, msg); |
| 196 | else |
| 197 | fprintf(stderr, "%s: %s", prioname, msg); |
| 198 | free(msg); |
| 199 | |
| 200 | if (prio <= LOG_CRIT) |
| 201 | exit(EXIT_FAILURE); |
| 202 | } |
| 203 | #define ERR(...) _log(LOG_ERR, __VA_ARGS__) |
| 204 | #define WRN(...) _log(LOG_WARNING, __VA_ARGS__) |
| 205 | #define INF(...) _log(LOG_INFO, __VA_ARGS__) |
| 206 | #define DBG(...) _log(LOG_DEBUG, __VA_ARGS__) |
| 207 | #define LOG(...) _log(log_priority, __VA_ARGS__) |
| 208 | #define SHOW(...) _show(__VA_ARGS__) |
| 209 | |
| 210 | static int show_list(struct kmod_ctx *ctx, const char *list_type, const char *pattern) |
| 211 | { |
| 212 | ERR("TODO - list is missing in kmod.\n"); |
| 213 | /* |
| 214 | needs: |
| 215 | struct kmod_list *kmod_get_dependencies(struct kmod_ctx *ctx); |
| 216 | kmod_dependency_get_name() |
| 217 | kmod_dependency_get_dependencies() |
| 218 | kmod_dependency_unref_list() |
| 219 | */ |
| 220 | return -ENOENT; |
| 221 | } |
| 222 | |
| 223 | static int show_config(struct kmod_ctx *ctx) |
| 224 | { |
| 225 | ERR("TODO - config is missing in kmod.\n"); |
| 226 | /* |
| 227 | needs: |
| 228 | struct kmod_list *kmod_get_config(struct kmod_ctx *ctx); |
| 229 | kmod_config_get_type() {alias,options,blacklist,install,remove,softdeps} |
| 230 | kmod_config_get_key() |
| 231 | kmod_config_get_value() |
| 232 | kmod_config_unref_list() |
| 233 | */ |
| 234 | return -ENOENT; |
| 235 | } |
| 236 | |
| 237 | static int show_modversions(struct kmod_ctx *ctx, const char *filename) |
| 238 | { |
Gustavo Sverzut Barbieri | 0e3e2f4 | 2011-12-19 12:45:22 -0200 | [diff] [blame] | 239 | struct kmod_list *l, *list = NULL; |
| 240 | struct kmod_module *mod; |
| 241 | int err = kmod_module_new_from_path(ctx, filename, &mod); |
| 242 | if (err < 0) { |
| 243 | LOG("Module %s not found.\n", filename); |
| 244 | return err; |
| 245 | } |
| 246 | |
| 247 | err = kmod_module_get_versions(mod, &list); |
| 248 | if (err < 0) { |
| 249 | LOG("Could not get modversions of %s: %s\n", |
| 250 | filename, strerror(-err)); |
| 251 | kmod_module_unref(mod); |
| 252 | return err; |
| 253 | } |
| 254 | |
| 255 | kmod_list_foreach(l, list) { |
| 256 | const char *symbol = kmod_module_version_get_symbol(l); |
| 257 | uint64_t crc = kmod_module_version_get_crc(l); |
| 258 | printf("0x%08"PRIx64"\t%s\n", crc, symbol); |
| 259 | } |
| 260 | kmod_module_versions_free_list(list); |
| 261 | kmod_module_unref(mod); |
| 262 | return 0; |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 263 | } |
| 264 | |
| 265 | static int command_do(struct kmod_module *module, const char *type, const char *command, const char *cmdline_opts) |
| 266 | { |
| 267 | const char *modname = kmod_module_get_name(module); |
| 268 | char *p, *cmd = NULL; |
| 269 | size_t cmdlen, cmdline_opts_len, varlen; |
| 270 | int ret = 0; |
| 271 | |
| 272 | if (cmdline_opts == NULL) |
| 273 | cmdline_opts = ""; |
| 274 | cmdline_opts_len = strlen(cmdline_opts); |
| 275 | |
| 276 | cmd = strdup(command); |
| 277 | if (cmd == NULL) |
| 278 | return -ENOMEM; |
| 279 | cmdlen = strlen(cmd); |
| 280 | varlen = sizeof("$CMDLINE_OPTS") - 1; |
| 281 | while ((p = strstr(cmd, "$CMDLINE_OPTS")) != NULL) { |
| 282 | size_t prefixlen = p - cmd; |
| 283 | size_t suffixlen = cmdlen - prefixlen - varlen; |
| 284 | size_t slen = cmdlen - varlen + cmdline_opts_len; |
| 285 | char *suffix = p + varlen; |
| 286 | char *s = malloc(slen + 1); |
| 287 | if (s == NULL) { |
| 288 | free(cmd); |
| 289 | return -ENOMEM; |
| 290 | } |
| 291 | memcpy(s, cmd, p - cmd); |
| 292 | memcpy(s + prefixlen, cmdline_opts, cmdline_opts_len); |
| 293 | memcpy(s + prefixlen + cmdline_opts_len, suffix, suffixlen); |
| 294 | s[slen] = '\0'; |
| 295 | |
| 296 | free(cmd); |
| 297 | cmd = s; |
| 298 | cmdlen = slen; |
| 299 | } |
| 300 | |
| 301 | SHOW("%s %s\n", type, cmd); |
| 302 | if (dry_run) |
| 303 | goto end; |
| 304 | |
| 305 | setenv("MODPROBE_MODULE", modname, 1); |
| 306 | ret = system(cmd); |
| 307 | unsetenv("MODPROBE_MODULE"); |
| 308 | if (ret == -1 || WEXITSTATUS(ret)) { |
| 309 | LOG("Error running %s command for %s\n", type, modname); |
| 310 | if (ret != -1) |
| 311 | ret = -WEXITSTATUS(ret); |
| 312 | } |
| 313 | |
| 314 | end: |
| 315 | free(cmd); |
| 316 | return ret; |
| 317 | } |
| 318 | |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 319 | static int rmmod_do_dependencies(struct kmod_module *parent); |
| 320 | static int rmmod_do_soft_dependencies(struct kmod_module *mod, struct kmod_list *deps); |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 321 | |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 322 | static int rmmod_do_deps_list(struct kmod_module *parent, struct kmod_list *deps, unsigned stop_on_errors) |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 323 | { |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 324 | struct kmod_list *d; |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 325 | int err = 0; |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 326 | |
| 327 | kmod_list_foreach_reverse(d, deps) { |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 328 | struct kmod_module *dm = kmod_module_get_module(d); |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 329 | struct kmod_list *pre = NULL, *post = NULL; |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 330 | const char *cmd, *dmname = kmod_module_get_name(dm); |
| 331 | int r; |
| 332 | |
| 333 | r = rmmod_do_dependencies(dm); |
| 334 | if (r < 0) { |
| 335 | WRN("could not remove dependencies of '%s': %s\n", |
| 336 | dmname, strerror(-r)); |
| 337 | goto dep_error; |
| 338 | } |
| 339 | |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 340 | r = kmod_module_get_softdeps(dm, &pre, &post); |
| 341 | if (r < 0) { |
| 342 | WRN("could not get softdeps of '%s': %s\n", |
| 343 | dmname, strerror(-r)); |
| 344 | goto dep_done; |
| 345 | } |
| 346 | |
| 347 | r = rmmod_do_soft_dependencies(dm, post); |
| 348 | if (r < 0) { |
| 349 | WRN("could not remove post soft softdeps of '%s': %s\n", |
| 350 | dmname, strerror(-r)); |
| 351 | goto dep_error; |
| 352 | } |
| 353 | |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 354 | if (!ignore_loaded) { |
| 355 | int state = kmod_module_get_initstate(dm); |
| 356 | if (state != KMOD_MODULE_LIVE && |
| 357 | state != KMOD_MODULE_COMING) |
| 358 | goto dep_done; |
| 359 | } |
| 360 | |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 361 | cmd = kmod_module_get_remove_commands(dm); |
| 362 | if (cmd) { |
| 363 | r = command_do(dm, "remove", cmd, NULL); |
| 364 | if (r < 0) { |
| 365 | WRN("failed to execute remove command of '%s': " |
| 366 | "%s\n", dmname, strerror(-r)); |
| 367 | goto dep_error; |
| 368 | } else |
| 369 | goto dep_done; |
| 370 | } |
| 371 | |
| 372 | r = kmod_module_get_refcnt(dm); |
| 373 | if (r < 0) { |
| 374 | WRN("could not get module '%s' refcnt: %s\n", |
| 375 | dmname, strerror(-r)); |
| 376 | goto dep_error; |
| 377 | } else if (r > 0 && !ignore_loaded) { |
| 378 | LOG("Module %s is in use.\n", dmname); |
| 379 | r = -EBUSY; |
| 380 | goto dep_error; |
| 381 | } |
| 382 | |
| 383 | SHOW("rmmod %s\n", dmname); |
| 384 | |
| 385 | if (!dry_run) { |
| 386 | r = kmod_module_remove_module(dm, 0); |
| 387 | if (r < 0) { |
| 388 | WRN("could not remove '%s': %s\n", |
| 389 | dmname, strerror(-r)); |
| 390 | goto dep_error; |
| 391 | } |
| 392 | } |
| 393 | |
| 394 | dep_done: |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 395 | r = rmmod_do_soft_dependencies(dm, pre); |
| 396 | if (r < 0) { |
| 397 | WRN("could not remove pre softdeps of '%s': %s\n", |
| 398 | dmname, strerror(-r)); |
| 399 | goto dep_error; |
| 400 | } |
| 401 | kmod_module_unref_list(pre); |
| 402 | kmod_module_unref_list(post); |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 403 | kmod_module_unref(dm); |
| 404 | continue; |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 405 | |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 406 | dep_error: |
| 407 | err = r; |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 408 | kmod_module_unref_list(pre); |
| 409 | kmod_module_unref_list(post); |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 410 | kmod_module_unref(dm); |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 411 | if (stop_on_errors) |
| 412 | break; |
| 413 | else |
| 414 | continue; |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 415 | } |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 416 | |
| 417 | return err; |
| 418 | } |
| 419 | |
| 420 | static int rmmod_do_soft_dependencies(struct kmod_module *mod, struct kmod_list *deps) |
| 421 | { |
| 422 | return rmmod_do_deps_list(mod, deps, 0); |
| 423 | } |
| 424 | |
| 425 | static int rmmod_do_dependencies(struct kmod_module *parent) |
| 426 | { |
| 427 | struct kmod_list *deps = kmod_module_get_holders(parent); |
| 428 | int err = rmmod_do_deps_list(parent, deps, 1); |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 429 | kmod_module_unref_list(deps); |
| 430 | return err; |
| 431 | } |
| 432 | |
| 433 | static int rmmod_do(struct kmod_module *mod) |
| 434 | { |
| 435 | const char *modname = kmod_module_get_name(mod); |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 436 | struct kmod_list *pre = NULL, *post = NULL; |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 437 | int err; |
| 438 | |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 439 | if (!ignore_commands) { |
| 440 | const char *cmd; |
| 441 | |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 442 | err = kmod_module_get_softdeps(mod, &pre, &post); |
| 443 | if (err < 0) { |
| 444 | WRN("could not get softdeps of '%s': %s\n", |
| 445 | modname, strerror(-err)); |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 446 | return err; |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 447 | } |
| 448 | |
| 449 | err = rmmod_do_soft_dependencies(mod, post); |
| 450 | if (err < 0) { |
| 451 | WRN("could not remove post softdeps of '%s': %s\n", |
| 452 | modname, strerror(-err)); |
| 453 | goto error; |
| 454 | } |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 455 | |
| 456 | cmd = kmod_module_get_remove_commands(mod); |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 457 | if (cmd != NULL) { |
| 458 | err = command_do(mod, "remove", cmd, NULL); |
| 459 | goto done; |
| 460 | } |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 461 | } |
| 462 | |
| 463 | if (!ignore_loaded) { |
Lucas De Marchi | 9bf60d2 | 2011-12-19 02:18:14 -0200 | [diff] [blame] | 464 | int state = kmod_module_get_initstate(mod); |
| 465 | |
Lucas De Marchi | e5e2a68 | 2011-12-19 02:26:34 -0200 | [diff] [blame] | 466 | if (state < 0) { |
| 467 | LOG ("Module %s not found.\n", modname); |
| 468 | return -ENOENT; |
| 469 | } else if (state == KMOD_MODULE_BUILTIN) { |
Lucas De Marchi | 9bf60d2 | 2011-12-19 02:18:14 -0200 | [diff] [blame] | 470 | LOG("Module %s is builtin.\n", modname); |
| 471 | return -ENOENT; |
| 472 | } else if (state != KMOD_MODULE_LIVE) { |
| 473 | if (first_time) { |
| 474 | LOG("Module %s is not in kernel.\n", modname); |
| 475 | return -ENOENT; |
| 476 | } else |
| 477 | return 0; |
| 478 | } |
| 479 | } |
| 480 | |
| 481 | /* not in original modprobe -r, but helpful */ |
| 482 | if (remove_dependencies) { |
| 483 | err = rmmod_do_dependencies(mod); |
| 484 | if (err < 0) |
| 485 | return err; |
| 486 | } |
| 487 | |
| 488 | if (!ignore_loaded) { |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 489 | int usage = kmod_module_get_refcnt(mod); |
| 490 | if (usage > 0) { |
| 491 | LOG("Module %s is in use.\n", modname); |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 492 | err = -EBUSY; |
| 493 | goto error; |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 494 | } |
| 495 | } |
| 496 | |
| 497 | SHOW("rmmod %s\n", modname); |
| 498 | |
| 499 | if (dry_run) |
| 500 | err = 0; |
| 501 | else { |
| 502 | int flags = 0; |
| 503 | |
| 504 | if (force) |
| 505 | flags |= KMOD_REMOVE_FORCE; |
| 506 | |
| 507 | err = kmod_module_remove_module(mod, flags); |
| 508 | if (err == -EEXIST) { |
| 509 | if (!first_time) |
| 510 | err = 0; |
| 511 | else |
| 512 | LOG("Module %s is not in kernel.\n", modname); |
| 513 | } |
| 514 | } |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 515 | |
| 516 | done: |
| 517 | if (!ignore_commands) { |
| 518 | err = rmmod_do_soft_dependencies(mod, pre); |
| 519 | if (err < 0) { |
| 520 | WRN("could not remove pre softdeps of '%s': %s\n", |
| 521 | modname, strerror(-err)); |
| 522 | goto error; |
| 523 | } |
| 524 | } |
| 525 | |
| 526 | error: |
| 527 | kmod_module_unref_list(pre); |
| 528 | kmod_module_unref_list(post); |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 529 | return err; |
| 530 | } |
| 531 | |
| 532 | static int rmmod_path(struct kmod_ctx *ctx, const char *path) |
| 533 | { |
| 534 | struct kmod_module *mod; |
| 535 | int err; |
| 536 | |
| 537 | err = kmod_module_new_from_path(ctx, path, &mod); |
| 538 | if (err < 0) { |
| 539 | LOG("Module %s not found.\n", path); |
| 540 | return err; |
| 541 | } |
| 542 | err = rmmod_do(mod); |
| 543 | kmod_module_unref(mod); |
| 544 | return err; |
| 545 | } |
| 546 | |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 547 | static int rmmod_alias(struct kmod_ctx *ctx, const char *alias) |
| 548 | { |
| 549 | struct kmod_list *l, *list = NULL; |
| 550 | int err; |
| 551 | |
| 552 | err = kmod_module_new_from_lookup(ctx, alias, &list); |
Lucas De Marchi | e5e2a68 | 2011-12-19 02:26:34 -0200 | [diff] [blame] | 553 | if (err < 0) |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 554 | return err; |
Lucas De Marchi | e5e2a68 | 2011-12-19 02:26:34 -0200 | [diff] [blame] | 555 | |
| 556 | if (list == NULL) |
| 557 | LOG("Module %s not found.\n", alias); |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 558 | |
| 559 | kmod_list_foreach(l, list) { |
| 560 | struct kmod_module *mod = kmod_module_get_module(l); |
| 561 | err = rmmod_do(mod); |
| 562 | kmod_module_unref(mod); |
| 563 | if (err < 0) |
| 564 | break; |
| 565 | } |
| 566 | |
| 567 | kmod_module_unref_list(list); |
| 568 | return err; |
| 569 | } |
| 570 | |
| 571 | static int rmmod(struct kmod_ctx *ctx, const char *name) |
| 572 | { |
| 573 | struct stat st; |
Lucas De Marchi | e5e2a68 | 2011-12-19 02:26:34 -0200 | [diff] [blame] | 574 | |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 575 | if (stat(name, &st) == 0) |
| 576 | return rmmod_path(ctx, name); |
| 577 | else |
| 578 | return rmmod_alias(ctx, name); |
| 579 | } |
| 580 | |
| 581 | static int rmmod_all(struct kmod_ctx *ctx, char **args, int nargs) |
| 582 | { |
| 583 | int i, err = 0; |
| 584 | |
| 585 | for (i = 0; i < nargs; i++) { |
| 586 | int r = rmmod(ctx, args[i]); |
| 587 | if (r < 0) |
| 588 | err = r; |
| 589 | } |
| 590 | |
| 591 | return err; |
| 592 | } |
| 593 | |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 594 | static int insmod_do_dependencies(struct kmod_module *parent); |
| 595 | static int insmod_do_soft_dependencies(struct kmod_module *mod, struct kmod_list *deps); |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 596 | |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 597 | static int insmod_do_deps_list(struct kmod_module *parent, struct kmod_list *deps, unsigned stop_on_errors) |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 598 | { |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 599 | struct kmod_list *d; |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 600 | int err = 0; |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 601 | |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 602 | kmod_list_foreach(d, deps) { |
| 603 | struct kmod_module *dm = kmod_module_get_module(d); |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 604 | struct kmod_list *pre = NULL, *post = NULL; |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 605 | const char *cmd, *opts, *dmname = kmod_module_get_name(dm); |
| 606 | int r; |
| 607 | |
| 608 | r = insmod_do_dependencies(dm); |
| 609 | if (r < 0) { |
| 610 | WRN("could not insert dependencies of '%s': %s\n", |
| 611 | dmname, strerror(-r)); |
| 612 | goto dep_error; |
| 613 | } |
| 614 | |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 615 | r = kmod_module_get_softdeps(dm, &pre, &post); |
| 616 | if (r < 0) { |
| 617 | WRN("could not get softdeps of '%s': %s\n", |
| 618 | dmname, strerror(-r)); |
| 619 | goto dep_done; |
| 620 | } |
| 621 | |
| 622 | r = insmod_do_soft_dependencies(dm, pre); |
| 623 | if (r < 0) { |
| 624 | WRN("could not insert pre softdeps of '%s': %s\n", |
| 625 | dmname, strerror(-r)); |
| 626 | goto dep_error; |
| 627 | } |
| 628 | |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 629 | if (!ignore_loaded) { |
| 630 | int state = kmod_module_get_initstate(dm); |
| 631 | if (state == KMOD_MODULE_LIVE || |
| 632 | state == KMOD_MODULE_COMING || |
| 633 | state == KMOD_MODULE_BUILTIN) |
| 634 | goto dep_done; |
| 635 | } |
| 636 | |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 637 | cmd = kmod_module_get_install_commands(dm); |
| 638 | if (cmd) { |
| 639 | r = command_do(dm, "install", cmd, NULL); |
| 640 | if (r < 0) { |
| 641 | WRN("failed to execute install command of '%s':" |
| 642 | " %s\n", dmname, strerror(-r)); |
| 643 | goto dep_error; |
| 644 | } else |
| 645 | goto dep_done; |
| 646 | } |
| 647 | |
| 648 | opts = kmod_module_get_options(dm); |
| 649 | SHOW("insmod %s %s\n", |
| 650 | kmod_module_get_path(dm), opts ? opts : ""); |
| 651 | |
| 652 | if (!dry_run) { |
| 653 | int flags = 0; |
| 654 | |
| 655 | if (strip_modversion || force) |
| 656 | flags |= KMOD_INSERT_FORCE_MODVERSION; |
| 657 | if (strip_vermagic || force) |
| 658 | flags |= KMOD_INSERT_FORCE_VERMAGIC; |
| 659 | |
| 660 | r = kmod_module_insert_module(dm, flags, opts); |
| 661 | if (r < 0) { |
| 662 | WRN("could not insert '%s': %s\n", |
| 663 | dmname, strerror(-r)); |
| 664 | goto dep_error; |
| 665 | } |
| 666 | } |
| 667 | |
| 668 | dep_done: |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 669 | r = insmod_do_soft_dependencies(dm, post); |
| 670 | if (r < 0) { |
| 671 | WRN("could not insert post softdeps of '%s': %s\n", |
| 672 | dmname, strerror(-r)); |
| 673 | goto dep_error; |
| 674 | } |
| 675 | |
| 676 | kmod_module_unref_list(pre); |
| 677 | kmod_module_unref_list(post); |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 678 | kmod_module_unref(dm); |
| 679 | continue; |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 680 | |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 681 | dep_error: |
| 682 | err = r; |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 683 | kmod_module_unref_list(pre); |
| 684 | kmod_module_unref_list(post); |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 685 | kmod_module_unref(dm); |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 686 | if (stop_on_errors) |
| 687 | break; |
| 688 | else |
| 689 | continue; |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 690 | } |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 691 | |
| 692 | return err; |
| 693 | } |
| 694 | |
| 695 | static int insmod_do_soft_dependencies(struct kmod_module *mod, struct kmod_list *deps) |
| 696 | { |
| 697 | return insmod_do_deps_list(mod, deps, 0); |
| 698 | } |
| 699 | |
| 700 | static int insmod_do_dependencies(struct kmod_module *parent) |
| 701 | { |
| 702 | struct kmod_list *deps = kmod_module_get_dependencies(parent); |
| 703 | int err = insmod_do_deps_list(parent, deps, 1); |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 704 | kmod_module_unref_list(deps); |
| 705 | return err; |
| 706 | } |
| 707 | |
| 708 | static int insmod_do(struct kmod_module *mod, const char *extra_opts) |
| 709 | { |
| 710 | const char *modname = kmod_module_get_name(mod); |
| 711 | const char *conf_opts = kmod_module_get_options(mod); |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 712 | struct kmod_list *pre = NULL, *post = NULL; |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 713 | char *opts = NULL; |
| 714 | int err; |
| 715 | |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 716 | if (!ignore_commands) { |
| 717 | const char *cmd; |
| 718 | |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 719 | err = kmod_module_get_softdeps(mod, &pre, &post); |
| 720 | if (err < 0) { |
| 721 | WRN("could not get softdeps of '%s': %s\n", |
| 722 | modname, strerror(-err)); |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 723 | return err; |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 724 | } |
| 725 | |
| 726 | err = insmod_do_soft_dependencies(mod, pre); |
| 727 | if (err < 0) { |
| 728 | WRN("could not insert pre softdeps of '%s': %s\n", |
| 729 | modname, strerror(-err)); |
| 730 | goto error; |
| 731 | } |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 732 | |
| 733 | cmd = kmod_module_get_install_commands(mod); |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 734 | if (cmd != NULL) { |
| 735 | err = command_do(mod, "install", cmd, extra_opts); |
| 736 | goto done; |
| 737 | } |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 738 | } |
| 739 | |
Lucas De Marchi | 9bf60d2 | 2011-12-19 02:18:14 -0200 | [diff] [blame] | 740 | if (!ignore_loaded) { |
| 741 | int state = kmod_module_get_initstate(mod); |
| 742 | |
Lucas De Marchi | 95dd837 | 2011-12-20 13:11:33 -0200 | [diff] [blame] | 743 | if (state == KMOD_MODULE_BUILTIN) { |
Lucas De Marchi | 9bf60d2 | 2011-12-19 02:18:14 -0200 | [diff] [blame] | 744 | if (first_time) { |
| 745 | LOG("Module %s already in kernel (builtin).\n", |
| 746 | modname); |
| 747 | return -EEXIST; |
| 748 | } |
| 749 | return 0; |
| 750 | } else if (state == KMOD_MODULE_LIVE) { |
| 751 | if (first_time) { |
| 752 | LOG("Module %s already in kernel.\n", modname); |
| 753 | return -EEXIST; |
| 754 | } |
| 755 | return 0; |
| 756 | } |
| 757 | } |
| 758 | |
Lucas De Marchi | 95dd837 | 2011-12-20 13:11:33 -0200 | [diff] [blame] | 759 | /* |
| 760 | * At this point it's not possible to be a install/remove command |
| 761 | * anymore. So if we can't get module's path, it's because it was |
| 762 | * really intended to be a module and it doesn't exist |
| 763 | */ |
| 764 | if (kmod_module_get_path(mod) == NULL) { |
| 765 | LOG("Module %s not found.\n", modname); |
| 766 | return -ENOENT; |
| 767 | } |
| 768 | |
Lucas De Marchi | 9bf60d2 | 2011-12-19 02:18:14 -0200 | [diff] [blame] | 769 | err = insmod_do_dependencies(mod); |
| 770 | if (err < 0) |
| 771 | return err; |
| 772 | |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 773 | if (conf_opts || extra_opts) { |
| 774 | if (conf_opts == NULL) |
| 775 | opts = strdup(extra_opts); |
| 776 | else if (extra_opts == NULL) |
| 777 | opts = strdup(conf_opts); |
| 778 | else if (asprintf(&opts, "%s %s", conf_opts, extra_opts) < 0) |
| 779 | opts = NULL; |
| 780 | |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 781 | if (opts == NULL) { |
| 782 | err = -ENOMEM; |
| 783 | goto error; |
| 784 | } |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 785 | } |
| 786 | |
| 787 | SHOW("insmod %s %s\n", kmod_module_get_path(mod), opts ? opts : ""); |
| 788 | |
| 789 | if (dry_run) |
| 790 | err = 0; |
| 791 | else { |
| 792 | int flags = 0; |
| 793 | |
| 794 | if (strip_modversion || force) |
| 795 | flags |= KMOD_INSERT_FORCE_MODVERSION; |
| 796 | if (strip_vermagic || force) |
| 797 | flags |= KMOD_INSERT_FORCE_VERMAGIC; |
| 798 | |
| 799 | err = kmod_module_insert_module(mod, flags, opts); |
| 800 | if (err == -EEXIST) { |
| 801 | if (!first_time) |
| 802 | err = 0; |
| 803 | else |
| 804 | ERR("Module %s already in kernel.\n", |
| 805 | kmod_module_get_name(mod)); |
| 806 | } |
| 807 | } |
Gustavo Sverzut Barbieri | e793f1e | 2011-12-16 22:35:28 -0200 | [diff] [blame] | 808 | |
| 809 | done: |
| 810 | if (!ignore_commands) { |
| 811 | err = insmod_do_soft_dependencies(mod, post); |
| 812 | if (err < 0) { |
| 813 | WRN("could not insert post softdeps of '%s': %s\n", |
| 814 | modname, strerror(-err)); |
| 815 | goto error; |
| 816 | } |
| 817 | } |
| 818 | |
| 819 | error: |
| 820 | kmod_module_unref_list(pre); |
| 821 | kmod_module_unref_list(post); |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 822 | free(opts); |
| 823 | return err; |
| 824 | } |
| 825 | |
| 826 | static int insmod_path(struct kmod_ctx *ctx, const char *path, const char *extra_options) |
| 827 | { |
| 828 | struct kmod_module *mod; |
| 829 | int err; |
| 830 | |
| 831 | err = kmod_module_new_from_path(ctx, path, &mod); |
| 832 | if (err < 0) { |
| 833 | LOG("Module %s not found.\n", path); |
| 834 | return err; |
| 835 | } |
| 836 | err = insmod_do(mod, extra_options); |
| 837 | kmod_module_unref(mod); |
| 838 | return err; |
| 839 | } |
| 840 | |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 841 | static int insmod_alias(struct kmod_ctx *ctx, const char *alias, const char *extra_options) |
| 842 | { |
| 843 | struct kmod_list *l, *list = NULL; |
| 844 | int err; |
| 845 | |
| 846 | err = kmod_module_new_from_lookup(ctx, alias, &list); |
Lucas De Marchi | e5e2a68 | 2011-12-19 02:26:34 -0200 | [diff] [blame] | 847 | if (err < 0) |
| 848 | return err; |
| 849 | |
| 850 | if (list == NULL) { |
| 851 | LOG("Module %s not found.\n", alias); |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 852 | return err; |
| 853 | } |
| 854 | |
| 855 | if (use_blacklist) { |
| 856 | struct kmod_list *filtered = NULL; |
| 857 | err = kmod_module_get_filtered_blacklist(ctx, list, &filtered); |
| 858 | DBG("using blacklist: input %p, output=%p\n", list, filtered); |
| 859 | kmod_module_unref_list(list); |
| 860 | if (err < 0) { |
| 861 | LOG("Could not filter alias list!\n"); |
| 862 | return err; |
| 863 | } |
| 864 | list = filtered; |
| 865 | } |
| 866 | |
| 867 | kmod_list_foreach(l, list) { |
| 868 | struct kmod_module *mod = kmod_module_get_module(l); |
Lucas De Marchi | 8122985 | 2011-12-16 02:58:48 -0200 | [diff] [blame] | 869 | if (lookup_only) |
| 870 | printf("%s\n", kmod_module_get_name(mod)); |
| 871 | else |
| 872 | err = insmod_do(mod, extra_options); |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 873 | kmod_module_unref(mod); |
| 874 | if (err < 0) |
| 875 | break; |
| 876 | } |
| 877 | |
| 878 | kmod_module_unref_list(list); |
| 879 | return err; |
| 880 | } |
| 881 | |
| 882 | static int insmod(struct kmod_ctx *ctx, const char *name, const char *extra_options) |
| 883 | { |
| 884 | struct stat st; |
| 885 | if (stat(name, &st) == 0) |
| 886 | return insmod_path(ctx, name, extra_options); |
| 887 | else |
| 888 | return insmod_alias(ctx, name, extra_options); |
| 889 | } |
| 890 | |
| 891 | static int insmod_all(struct kmod_ctx *ctx, char **args, int nargs) |
| 892 | { |
| 893 | int i, err = 0; |
| 894 | |
| 895 | for (i = 0; i < nargs; i++) { |
| 896 | int r = insmod(ctx, args[i], NULL); |
| 897 | if (r < 0) |
| 898 | err = r; |
| 899 | } |
| 900 | |
| 901 | return err; |
| 902 | } |
| 903 | |
| 904 | static void env_modprobe_options_append(const char *value) |
| 905 | { |
| 906 | const char *old = getenv("MODPROBE_OPTIONS"); |
| 907 | char *env; |
| 908 | |
| 909 | if (old == NULL) { |
| 910 | setenv("MODPROBE_OPTIONS", value, 1); |
| 911 | return; |
| 912 | } |
| 913 | |
| 914 | if (asprintf(&env, "%s %s", old, value) < 0) { |
| 915 | ERR("could not append value to $MODPROBE_OPTIONS\n"); |
| 916 | return; |
| 917 | } |
| 918 | |
| 919 | if (setenv("MODPROBE_OPTIONS", env, 1) < 0) |
| 920 | ERR("could not setenv(MODPROBE_OPTIONS, \"%s\")\n", env); |
| 921 | free(env); |
| 922 | } |
| 923 | |
| 924 | static int options_from_array(char **args, int nargs, char **output) |
| 925 | { |
| 926 | char *opts = NULL; |
| 927 | size_t optslen = 0; |
| 928 | int i, err = 0; |
| 929 | |
| 930 | for (i = 1; i < nargs; i++) { |
| 931 | size_t len = strlen(args[i]); |
| 932 | size_t qlen = 0; |
| 933 | const char *value; |
| 934 | void *tmp; |
| 935 | |
| 936 | value = strchr(args[i], '='); |
| 937 | if (value) { |
| 938 | value++; |
| 939 | if (*value != '"' && *value != '\'') { |
| 940 | if (strchr(value, ' ')) |
| 941 | qlen = 2; |
| 942 | } |
| 943 | } |
| 944 | |
| 945 | tmp = realloc(opts, optslen + len + qlen + 2); |
| 946 | if (!tmp) { |
| 947 | err = -errno; |
| 948 | free(opts); |
| 949 | opts = NULL; |
| 950 | ERR("could not gather module options: out-of-memory\n"); |
| 951 | break; |
| 952 | } |
| 953 | opts = tmp; |
| 954 | if (optslen > 0) { |
| 955 | opts[optslen] = ' '; |
| 956 | optslen++; |
| 957 | } |
| 958 | if (qlen == 0) { |
| 959 | memcpy(opts + optslen, args[i], len + 1); |
| 960 | optslen += len; |
| 961 | } else { |
| 962 | size_t keylen = value - args[i]; |
| 963 | size_t valuelen = len - keylen; |
| 964 | memcpy(opts + optslen, args[i], keylen); |
| 965 | optslen += keylen; |
| 966 | opts[optslen] = '"'; |
| 967 | optslen++; |
| 968 | memcpy(opts + optslen, value, valuelen); |
| 969 | optslen += valuelen; |
| 970 | opts[optslen] = '"'; |
| 971 | optslen++; |
| 972 | opts[optslen] = '\0'; |
| 973 | } |
| 974 | } |
| 975 | |
| 976 | *output = opts; |
| 977 | return err; |
| 978 | } |
| 979 | |
| 980 | static char **prepend_options_from_env(int *p_argc, char **orig_argv) |
| 981 | { |
| 982 | const char *p, *env = getenv("MODPROBE_OPTIONS"); |
| 983 | char **new_argv, *str_start, *str_end, *str, *s, *quote; |
| 984 | int i, argc = *p_argc; |
| 985 | size_t envlen, space_count = 0; |
| 986 | |
| 987 | if (env == NULL) |
| 988 | return orig_argv; |
| 989 | |
| 990 | for (p = env; *p != '\0'; p++) { |
| 991 | if (*p == ' ') |
| 992 | space_count++; |
| 993 | } |
| 994 | |
| 995 | envlen = p - env; |
| 996 | new_argv = malloc(sizeof(char *) * (argc + space_count + 3 + envlen)); |
| 997 | if (new_argv == NULL) |
| 998 | return NULL; |
| 999 | |
| 1000 | new_argv[0] = orig_argv[0]; |
| 1001 | str_start = str = (char *) (new_argv + argc + space_count + 3); |
| 1002 | memcpy(str, env, envlen + 1); |
| 1003 | |
| 1004 | str_end = str_start + envlen; |
| 1005 | |
| 1006 | quote = NULL; |
| 1007 | for (i = 1, s = str; *s != '\0'; s++) { |
| 1008 | if (quote == NULL) { |
| 1009 | if (*s == ' ') { |
| 1010 | new_argv[i] = str; |
| 1011 | i++; |
| 1012 | *s = '\0'; |
| 1013 | str = s + 1; |
| 1014 | } else if (*s == '"' || *s == '\'') |
| 1015 | quote = s; |
| 1016 | } else { |
| 1017 | if (*s == *quote) { |
| 1018 | if (quote == str) { |
| 1019 | new_argv[i] = str + 1; |
| 1020 | i++; |
| 1021 | *s = '\0'; |
| 1022 | str = s + 1; |
| 1023 | } else { |
| 1024 | char *it; |
| 1025 | for (it = quote; it < s - 1; it++) |
| 1026 | it[0] = it[1]; |
| 1027 | for (it = s - 1; it < str_end - 2; it++) |
| 1028 | it[0] = it[2]; |
| 1029 | str_end -= 2; |
| 1030 | *str_end = '\0'; |
| 1031 | s -= 2; |
| 1032 | } |
| 1033 | quote = NULL; |
| 1034 | } |
| 1035 | } |
| 1036 | } |
| 1037 | if (str < s) { |
| 1038 | new_argv[i] = str; |
| 1039 | i++; |
| 1040 | } |
| 1041 | |
| 1042 | memcpy(new_argv + i, orig_argv + 1, sizeof(char *) * (argc - 1)); |
| 1043 | new_argv[i + argc] = NULL; |
| 1044 | *p_argc = i + argc - 1; |
| 1045 | |
| 1046 | return new_argv; |
| 1047 | } |
| 1048 | |
| 1049 | static void log_syslog(void *data, int priority, const char *file, int line, |
| 1050 | const char *fn, const char *format, |
| 1051 | va_list args) |
| 1052 | { |
| 1053 | char *str, buf[32]; |
| 1054 | const char *prioname; |
| 1055 | |
| 1056 | switch (priority) { |
| 1057 | case LOG_CRIT: |
| 1058 | prioname = "FATAL"; |
| 1059 | break; |
| 1060 | case LOG_ERR: |
| 1061 | prioname = "ERROR"; |
| 1062 | break; |
| 1063 | case LOG_WARNING: |
| 1064 | prioname = "WARNING"; |
| 1065 | break; |
| 1066 | case LOG_NOTICE: |
| 1067 | prioname = "NOTICE"; |
| 1068 | break; |
| 1069 | case LOG_INFO: |
| 1070 | prioname = "INFO"; |
| 1071 | break; |
| 1072 | case LOG_DEBUG: |
| 1073 | prioname = "DEBUG"; |
| 1074 | break; |
| 1075 | default: |
| 1076 | snprintf(buf, sizeof(buf), "LOG-%03d", priority); |
| 1077 | prioname = buf; |
| 1078 | } |
| 1079 | |
| 1080 | if (vasprintf(&str, format, args) < 0) |
| 1081 | return; |
| 1082 | #ifdef ENABLE_DEBUG |
| 1083 | syslog(LOG_NOTICE, "%s: %s:%d %s() %s", prioname, file, line, fn, str); |
| 1084 | #else |
| 1085 | syslog(LOG_NOTICE, "%s: %s", prioname, str); |
| 1086 | #endif |
| 1087 | free(str); |
| 1088 | (void)data; |
| 1089 | } |
| 1090 | |
| 1091 | int main(int argc, char **orig_argv) |
| 1092 | { |
| 1093 | struct kmod_ctx *ctx; |
| 1094 | char **args = NULL, **argv; |
Gustavo Sverzut Barbieri | cb8d4d3 | 2011-12-11 20:37:01 -0200 | [diff] [blame] | 1095 | const char **config_paths = NULL; |
| 1096 | int nargs = 0, n_config_paths = 0; |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 1097 | char dirname_buf[PATH_MAX]; |
| 1098 | const char *dirname = NULL; |
| 1099 | const char *root = NULL; |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 1100 | const char *kversion = NULL; |
| 1101 | const char *list_type = NULL; |
| 1102 | int use_all = 0; |
| 1103 | int do_remove = 0; |
| 1104 | int do_show_config = 0; |
| 1105 | int do_show_modversions = 0; |
| 1106 | int do_show_list = 0; |
| 1107 | int err; |
| 1108 | |
| 1109 | argv = prepend_options_from_env(&argc, orig_argv); |
| 1110 | if (argv == NULL) { |
| 1111 | fputs("Error: could not prepend options from command line\n", |
| 1112 | stderr); |
| 1113 | return EXIT_FAILURE; |
| 1114 | } |
| 1115 | |
| 1116 | for (;;) { |
| 1117 | int c, idx = 0; |
| 1118 | c = getopt_long(argc, argv, cmdopts_s, cmdopts, &idx); |
| 1119 | if (c == -1) |
| 1120 | break; |
| 1121 | switch (c) { |
| 1122 | case 'a': |
| 1123 | log_priority = LOG_WARNING; |
| 1124 | use_all = 1; |
| 1125 | break; |
| 1126 | case 'r': |
| 1127 | do_remove = 1; |
| 1128 | break; |
| 1129 | case 5: |
| 1130 | remove_dependencies = 1; |
| 1131 | break; |
| 1132 | case 'R': |
Lucas De Marchi | 8122985 | 2011-12-16 02:58:48 -0200 | [diff] [blame] | 1133 | lookup_only = 1; |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 1134 | break; |
| 1135 | case 3: |
| 1136 | first_time = 1; |
| 1137 | break; |
| 1138 | case 'i': |
| 1139 | ignore_commands = 1; |
| 1140 | break; |
| 1141 | case 'b': |
| 1142 | use_blacklist = 1; |
| 1143 | break; |
| 1144 | case 'f': |
| 1145 | force = 1; |
| 1146 | break; |
| 1147 | case 2: |
| 1148 | strip_modversion = 1; |
| 1149 | break; |
| 1150 | case 1: |
| 1151 | strip_vermagic = 1; |
| 1152 | break; |
| 1153 | case 't': |
| 1154 | list_type = optarg; |
| 1155 | break; |
| 1156 | case 'l': |
| 1157 | do_show_list = 1; |
| 1158 | break; |
| 1159 | case 'D': |
| 1160 | ignore_loaded = 1; |
| 1161 | dry_run = 1; |
| 1162 | verbose++; |
| 1163 | break; |
| 1164 | case 'c': |
| 1165 | do_show_config = 1; |
| 1166 | break; |
| 1167 | case 4: |
| 1168 | do_show_modversions = 1; |
| 1169 | break; |
| 1170 | case 'n': |
| 1171 | dry_run = 1; |
| 1172 | break; |
Gustavo Sverzut Barbieri | cb8d4d3 | 2011-12-11 20:37:01 -0200 | [diff] [blame] | 1173 | case 'C': { |
| 1174 | size_t bytes = sizeof(char *) * (n_config_paths + 2); |
| 1175 | void *tmp = realloc(config_paths, bytes); |
| 1176 | if (!tmp) { |
| 1177 | fputs("Error: out-of-memory\n", stderr); |
| 1178 | goto cmdline_failed; |
| 1179 | } |
| 1180 | config_paths = tmp; |
| 1181 | config_paths[n_config_paths] = optarg; |
| 1182 | n_config_paths++; |
| 1183 | config_paths[n_config_paths] = NULL; |
| 1184 | |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 1185 | env_modprobe_options_append("-C"); |
| 1186 | env_modprobe_options_append(optarg); |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 1187 | break; |
Gustavo Sverzut Barbieri | cb8d4d3 | 2011-12-11 20:37:01 -0200 | [diff] [blame] | 1188 | } |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 1189 | case 'd': |
| 1190 | root = optarg; |
| 1191 | break; |
| 1192 | case 'S': |
| 1193 | kversion = optarg; |
| 1194 | break; |
| 1195 | case 's': |
| 1196 | env_modprobe_options_append("-s"); |
| 1197 | use_syslog = 1; |
| 1198 | break; |
| 1199 | case 'q': |
| 1200 | env_modprobe_options_append("-q"); |
| 1201 | verbose--; |
| 1202 | break; |
| 1203 | case 'v': |
| 1204 | env_modprobe_options_append("-v"); |
| 1205 | verbose++; |
| 1206 | break; |
| 1207 | case 'V': |
| 1208 | puts(PACKAGE " version " VERSION); |
| 1209 | if (argv != orig_argv) |
| 1210 | free(argv); |
| 1211 | return EXIT_SUCCESS; |
| 1212 | case 'h': |
| 1213 | help(argv[0]); |
| 1214 | if (argv != orig_argv) |
| 1215 | free(argv); |
| 1216 | return EXIT_SUCCESS; |
| 1217 | case '?': |
| 1218 | goto cmdline_failed; |
| 1219 | default: |
| 1220 | fprintf(stderr, |
| 1221 | "Error: unexpected getopt_long() value '%c'.\n", |
| 1222 | c); |
| 1223 | goto cmdline_failed; |
| 1224 | } |
| 1225 | } |
| 1226 | |
| 1227 | args = argv + optind; |
| 1228 | nargs = argc - optind; |
| 1229 | |
| 1230 | if (!do_show_config && !do_show_list) { |
| 1231 | if (nargs == 0) { |
| 1232 | fputs("Error: missing parameters. See -h.\n", stderr); |
| 1233 | goto cmdline_failed; |
| 1234 | } |
| 1235 | } |
| 1236 | |
| 1237 | if (!do_show_list && list_type != NULL) { |
| 1238 | fputs("Error: -t (--type) only supported with -l (--list).\n", |
| 1239 | stderr); |
| 1240 | goto cmdline_failed; |
| 1241 | } |
| 1242 | |
| 1243 | if (root != NULL || kversion != NULL) { |
| 1244 | struct utsname u; |
| 1245 | if (root == NULL) |
| 1246 | root = ""; |
| 1247 | if (kversion == NULL) { |
| 1248 | if (uname(&u) < 0) { |
| 1249 | fprintf(stderr, "Error: uname() failed: %s\n", |
| 1250 | strerror(errno)); |
| 1251 | goto cmdline_failed; |
| 1252 | } |
| 1253 | kversion = u.release; |
| 1254 | } |
Kay Sievers | a308abe | 2011-12-20 17:58:05 +0100 | [diff] [blame^] | 1255 | snprintf(dirname_buf, sizeof(dirname_buf), "%s" ROOTPREFIX "/lib/modules/%s", |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 1256 | root, kversion); |
| 1257 | dirname = dirname_buf; |
| 1258 | } |
| 1259 | |
Gustavo Sverzut Barbieri | cb8d4d3 | 2011-12-11 20:37:01 -0200 | [diff] [blame] | 1260 | ctx = kmod_new(dirname, config_paths); |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 1261 | if (!ctx) { |
| 1262 | fputs("Error: kmod_new() failed!\n", stderr); |
| 1263 | goto cmdline_failed; |
| 1264 | } |
| 1265 | kmod_load_resources(ctx); |
| 1266 | |
| 1267 | kmod_set_log_priority(ctx, verbose); |
| 1268 | if (use_syslog) { |
| 1269 | openlog("modprobe", LOG_CONS, LOG_DAEMON); |
| 1270 | kmod_set_log_fn(ctx, log_syslog, NULL); |
| 1271 | } |
| 1272 | |
| 1273 | if (do_show_list) |
| 1274 | err = show_list(ctx, list_type, nargs > 0 ? args[0] : NULL); |
| 1275 | else if (do_show_config) |
| 1276 | err = show_config(ctx); |
| 1277 | else if (do_show_modversions) |
| 1278 | err = show_modversions(ctx, args[0]); |
| 1279 | else if (do_remove) |
| 1280 | err = rmmod_all(ctx, args, use_all ? nargs : 1); |
| 1281 | else if (use_all) |
| 1282 | err = insmod_all(ctx, args, nargs); |
| 1283 | else { |
| 1284 | char *opts; |
| 1285 | err = options_from_array(args, nargs, &opts); |
| 1286 | if (err == 0) { |
| 1287 | err = insmod(ctx, args[0], opts); |
| 1288 | free(opts); |
| 1289 | } |
| 1290 | } |
| 1291 | |
| 1292 | kmod_unref(ctx); |
| 1293 | |
| 1294 | if (use_syslog) |
| 1295 | closelog(); |
| 1296 | |
| 1297 | if (argv != orig_argv) |
| 1298 | free(argv); |
Gustavo Sverzut Barbieri | cb8d4d3 | 2011-12-11 20:37:01 -0200 | [diff] [blame] | 1299 | free(config_paths); |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 1300 | return err >= 0 ? EXIT_SUCCESS : EXIT_FAILURE; |
| 1301 | |
| 1302 | cmdline_failed: |
| 1303 | if (argv != orig_argv) |
| 1304 | free(argv); |
Gustavo Sverzut Barbieri | cb8d4d3 | 2011-12-11 20:37:01 -0200 | [diff] [blame] | 1305 | free(config_paths); |
Gustavo Sverzut Barbieri | c3d0a5f | 2011-12-11 19:36:18 -0200 | [diff] [blame] | 1306 | return EXIT_FAILURE; |
| 1307 | } |