~ubuntu-branches/ubuntu/vivid/kmod/vivid : revision 13

1

/*

2

* kmod-modprobe - manage linux kernel modules using libkmod.

3

*

4

5

*

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.

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

13

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

14

* GNU General Public License for more details.

15

*

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/>.

18

*/

19

20

#include <assert.h>

21

#include <stdio.h>

22

#include <stdlib.h>

23

#include <stdbool.h>

24

#include <getopt.h>

25

#include <errno.h>

26

#include <string.h>

27

#include <sys/types.h>

28

#include <sys/stat.h>

29

#include <sys/utsname.h>

30

#include <sys/wait.h>

31

#include <unistd.h>

32

#include <syslog.h>

33

#include <limits.h>

34

35

#include "libkmod.h"

36

#include "libkmod-array.h"

37

#include "macro.h"

38

39

static int log_priority = LOG_CRIT;

40

static int use_syslog = 0;

41

42

#define DEFAULT_VERBOSE LOG_WARNING

43

static int verbose = DEFAULT_VERBOSE;

44

static int do_show = 0;

45

static int dry_run = 0;

46

static int ignore_loaded = 0;

47

static int lookup_only = 0;

48

static int first_time = 0;

49

static int ignore_commands = 0;

50

static int use_blacklist = 0;

51

static int force = 0;

52

static int strip_modversion = 0;

53

static int strip_vermagic = 0;

54

static int remove_dependencies = 0;

55

static int quiet_inuse = 0;

56

57

static const char cmdopts_s[] = "arRibfDcnC:d:S:sqvVh";

58

static const struct option cmdopts[] = {

59

{"all", no_argument, 0, 'a'},

60

{"remove", no_argument, 0, 'r'},

61

{"remove-dependencies", no_argument, 0, 5},

62

{"resolve-alias", no_argument, 0, 'R'},

63

{"first-time", no_argument, 0, 3},

64

{"ignore-install", no_argument, 0, 'i'},

65

{"ignore-remove", no_argument, 0, 'i'},

66

{"use-blacklist", no_argument, 0, 'b'},

67

{"force", no_argument, 0, 'f'},

68

{"force-modversion", no_argument, 0, 2},

69

{"force-vermagic", no_argument, 0, 1},

70

71

{"show-depends", no_argument, 0, 'D'},

72

{"showconfig", no_argument, 0, 'c'},

73

{"show-config", no_argument, 0, 'c'},

74

{"show-modversions", no_argument, 0, 4},

75

{"dump-modversions", no_argument, 0, 4},

76

77

{"dry-run", no_argument, 0, 'n'},

78

{"show", no_argument, 0, 'n'},

79

80

{"config", required_argument, 0, 'C'},

81

{"dirname", required_argument, 0, 'd'},

82

{"set-version", required_argument, 0, 'S'},

83

84

{"syslog", no_argument, 0, 's'},

85

{"quiet", no_argument, 0, 'q'},

86

{"verbose", no_argument, 0, 'v'},

87

{"version", no_argument, 0, 'V'},

88

{"help", no_argument, 0, 'h'},

89

{NULL, 0, 0, 0}

90

};

91

92

static void help(const char *progname)

93

{

94

fprintf(stderr,

95

"Usage:\n"

96

"\t%s [options] [-i] [-b] modulename\n"

97

"\t%s [options] -a [-i] [-b] modulename [modulename...]\n"

98

"\t%s [options] -r [-i] modulename\n"

99

"\t%s [options] -r -a [-i] modulename [modulename...]\n"

100

"\t%s [options] -c\n"

101

"\t%s [options] --dump-modversions filename\n"

102

"Management Options:\n"

103

"\t-a, --all Consider every non-argument to\n"

104

"\t be a module name to be inserted\n"

105

"\t or removed (-r)\n"

106

"\t-r, --remove Remove modules instead of inserting\n"

107

"\t --remove-dependencies Also remove modules depending on it\n"

108

"\t-R, --resolve-alias Only lookup and print alias and exit\n"

109

"\t --first-time Fail if module already inserted or removed\n"

110

"\t-i, --ignore-install Ignore install commands\n"

111

"\t-i, --ignore-remove Ignore remove commands\n"

112

"\t-b, --use-blacklist Apply blacklist to resolved alias.\n"

113

"\t-f, --force Force module insertion or removal.\n"

114

"\t implies --force-modversions and\n"

115

"\t --force-vermagic\n"

116

"\t --force-modversion Ignore module's version\n"

117

"\t --force-vermagic Ignore module's version magic\n"

118

"\n"

119

"Query Options:\n"

120

"\t-D, --show-depends Only print module dependencies and exit\n"

121

"\t-c, --showconfig Print out known configuration and exit\n"

122

"\t-c, --show-config Same as --showconfig\n"

123

"\t --show-modversions Dump module symbol version and exit\n"

124

"\t --dump-modversions Same as --show-modversions\n"

125

"\n"

126

"General Options:\n"

127

"\t-n, --dry-run Do not execute operations, just print out\n"

128

"\t-n, --show Same as --dry-run\n"

129

130

"\t-C, --config=FILE Use FILE instead of default search paths\n"

131

"\t-d, --dirname=DIR Use DIR as filesystem root for " ROOTPREFIX "/lib/modules\n"

132

"\t-S, --set-version=VERSION Use VERSION instead of `uname -r`\n"

133

134

"\t-s, --syslog print to syslog, not stderr\n"

135

"\t-q, --quiet disable messages\n"

136

"\t-v, --verbose enables more messages\n"

137

"\t-V, --version show version\n"

138

"\t-h, --help show this help\n",

139

progname, progname, progname, progname, progname, progname);

140

}

141

142

static inline void _show(const char *fmt, ...)

143

{

144

va_list args;

145

146

if (!do_show && verbose <= DEFAULT_VERBOSE)

147

return;

148

149

va_start(args, fmt);

150

vfprintf(stdout, fmt, args);

151

fflush(stdout);

152

va_end(args);

153

}

154

155

static inline void _log(int prio, const char *fmt, ...)

156

{

157

const char *prioname;

158

char buf[32], *msg;

159

va_list args;

160

161

if (prio > verbose)

162

return;

163

164

va_start(args, fmt);

165

if (vasprintf(&msg, fmt, args) < 0)

166

msg = NULL;

167

va_end(args);

168

if (msg == NULL)

169

return;

170

171

switch (prio) {

172

case LOG_CRIT:

173

prioname = "FATAL";

174

break;

175

case LOG_ERR:

176

prioname = "ERROR";

177

break;

178

case LOG_WARNING:

179

prioname = "WARNING";

180

break;

181

case LOG_NOTICE:

182

prioname = "NOTICE";

183

break;

184

case LOG_INFO:

185

prioname = "INFO";

186

break;

187

case LOG_DEBUG:

188

prioname = "DEBUG";

189

break;

190

default:

191

snprintf(buf, sizeof(buf), "LOG-%03d", prio);

192

prioname = buf;

193

}

194

195

if (use_syslog)

196

syslog(LOG_NOTICE, "%s: %s", prioname, msg);

197

else

198

fprintf(stderr, "%s: %s", prioname, msg);

199

free(msg);

200

201

if (prio <= LOG_CRIT)

202

exit(EXIT_FAILURE);

203

}

204

#define ERR(...) _log(LOG_ERR, __VA_ARGS__)

205

#define WRN(...) _log(LOG_WARNING, __VA_ARGS__)

206

#define INF(...) _log(LOG_INFO, __VA_ARGS__)

207

#define DBG(...) _log(LOG_DEBUG, __VA_ARGS__)

208

#define LOG(...) _log(log_priority, __VA_ARGS__)

209

#define SHOW(...) _show(__VA_ARGS__)

210

211

static int show_config(struct kmod_ctx *ctx)

212

{

213

struct config_iterators {

214

const char *name;

215

struct kmod_config_iter *(*get_iter)(const struct kmod_ctx *ctx);

216

} ci[] = {

217

{ "blacklist", kmod_config_get_blacklists },

218

{ "install", kmod_config_get_install_commands },

219

{ "remove", kmod_config_get_remove_commands },

220

{ "alias", kmod_config_get_aliases },

221

{ "options", kmod_config_get_options },

222

{ "softdep", kmod_config_get_softdeps },

223

};

224

size_t i;

225

226

for (i = 0; i < ARRAY_SIZE(ci); i++) {

227

struct kmod_config_iter *iter = ci[i].get_iter(ctx);

228

229

if (iter == NULL)

230

continue;

231

232

while (kmod_config_iter_next(iter)) {

233

const char *val;

234

235

printf("%s %s", ci[i].name,

236

kmod_config_iter_get_key(iter));

237

val = kmod_config_iter_get_value(iter);

238

if (val != NULL) {

239

putchar(' ');

240

puts(val);

241

} else

242

putchar('\n');

243

}

244

245

kmod_config_iter_free_iter(iter);

246

}

247

248

puts("\n# End of configuration files. Dumping indexes now:\n");

249

fflush(stdout);

250

251

kmod_dump_index(ctx, KMOD_INDEX_MODULES_ALIAS, STDOUT_FILENO);

252

kmod_dump_index(ctx, KMOD_INDEX_MODULES_SYMBOL, STDOUT_FILENO);

253

254

return 0;

255

}

256

257

static int show_modversions(struct kmod_ctx *ctx, const char *filename)

258

{

259

struct kmod_list *l, *list = NULL;

260

struct kmod_module *mod;

261

int err = kmod_module_new_from_path(ctx, filename, &mod);

262

if (err < 0) {

263

LOG("Module %s not found.\n", filename);

264

return err;

265

}

266

267

err = kmod_module_get_versions(mod, &list);

268

if (err < 0) {

269

LOG("could not get modversions of %s: %s\n",

270

filename, strerror(-err));

271

kmod_module_unref(mod);

272

return err;

273

}

274

275

kmod_list_foreach(l, list) {

276

const char *symbol = kmod_module_version_get_symbol(l);

277

uint64_t crc = kmod_module_version_get_crc(l);

278

printf("0x%08"PRIx64"\t%s\n", crc, symbol);

279

}

280

kmod_module_versions_free_list(list);

281

kmod_module_unref(mod);

282

return 0;

283

}

284

285

static int command_do(struct kmod_module *module, const char *type,

286

const char *command, const char *cmdline_opts)

287

{

288

const char *modname = kmod_module_get_name(module);

289

char *p, *cmd = NULL;

290

size_t cmdlen, cmdline_opts_len, varlen;

291

int ret = 0;

292

293

if (cmdline_opts == NULL)

294

cmdline_opts = "";

295

cmdline_opts_len = strlen(cmdline_opts);

296

297

cmd = strdup(command);

298

if (cmd == NULL)

299

return -ENOMEM;

300

cmdlen = strlen(cmd);

301

varlen = sizeof("$CMDLINE_OPTS") - 1;

302

while ((p = strstr(cmd, "$CMDLINE_OPTS")) != NULL) {

303

size_t prefixlen = p - cmd;

304

size_t suffixlen = cmdlen - prefixlen - varlen;

305

size_t slen = cmdlen - varlen + cmdline_opts_len;

306

char *suffix = p + varlen;

307

char *s = malloc(slen + 1);

308

if (s == NULL) {

309

free(cmd);

310

return -ENOMEM;

311

}

312

memcpy(s, cmd, p - cmd);

313

memcpy(s + prefixlen, cmdline_opts, cmdline_opts_len);

314

memcpy(s + prefixlen + cmdline_opts_len, suffix, suffixlen);

315

s[slen] = '\0';

316

317

free(cmd);

318

cmd = s;

319

cmdlen = slen;

320

}

321

322

SHOW("%s %s\n", type, cmd);

323

if (dry_run)

324

goto end;

325

326

setenv("MODPROBE_MODULE", modname, 1);

327

ret = system(cmd);

328

unsetenv("MODPROBE_MODULE");

329

if (ret == -1 || WEXITSTATUS(ret)) {

330

LOG("Error running %s command for %s\n", type, modname);

331

if (ret != -1)

332

ret = -WEXITSTATUS(ret);

333

}

334

335

end:

336

free(cmd);

337

return ret;

338

}

339

340

static int rmmod_do_remove_module(struct kmod_module *mod)

341

{

342

const char *modname = kmod_module_get_name(mod);

343

struct kmod_list *deps, *itr;

344

int flags = 0, err;

345

346

SHOW("rmmod %s\n", kmod_module_get_name(mod));

347

348

if (dry_run)

349

return 0;

350

351

if (force)

352

flags |= KMOD_REMOVE_FORCE;

353

354

err = kmod_module_remove_module(mod, flags);

355

if (err == -EEXIST) {

356

if (!first_time)

357

err = 0;

358

else

359

LOG("Module %s is not in kernel.\n", modname);

360

}

361

362

deps = kmod_module_get_dependencies(mod);

363

if (deps != NULL) {

364

kmod_list_foreach(itr, deps) {

365

struct kmod_module *dep = kmod_module_get_module(itr);

366

if (kmod_module_get_refcnt(dep) == 0)

367

rmmod_do_remove_module(dep);

368

kmod_module_unref(dep);

369

}

370

kmod_module_unref_list(deps);

371

}

372

373

return err;

374

}

375

376

static int rmmod_do_module(struct kmod_module *mod, bool do_dependencies);

377

378

static int rmmod_do_deps_list(struct kmod_list *list, bool stop_on_errors)

379

{

380

struct kmod_list *l;

381

382

kmod_list_foreach_reverse(l, list) {

383

struct kmod_module *m = kmod_module_get_module(l);

384

int r = rmmod_do_module(m, false);

385

kmod_module_unref(m);

386

387

if (r < 0 && stop_on_errors)

388

return r;

389

}

390

391

return 0;

392

}

393

394

static int rmmod_do_module(struct kmod_module *mod, bool do_dependencies)

395

{

396

const char *modname = kmod_module_get_name(mod);

397

struct kmod_list *pre = NULL, *post = NULL;

398

const char *cmd = NULL;

399

int err;

400

401

if (!ignore_commands) {

402

err = kmod_module_get_softdeps(mod, &pre, &post);

403

if (err < 0) {

404

WRN("could not get softdeps of '%s': %s\n",

405

modname, strerror(-err));

406

return err;

407

}

408

409

cmd = kmod_module_get_remove_commands(mod);

410

}

411

412

if (cmd == NULL && !ignore_loaded) {

413

int state = kmod_module_get_initstate(mod);

414

415

if (state < 0) {

416

if (first_time) {

417

LOG("Module %s is not in kernel.\n", modname);

418

err = -ENOENT;

419

} else {

420

err = 0;

421

}

422

goto error;

423

} else if (state == KMOD_MODULE_BUILTIN) {

424

LOG("Module %s is builtin.\n", modname);

425

err = -ENOENT;

426

goto error;

427

}

428

}

429

430

rmmod_do_deps_list(post, false);

431

432

if (do_dependencies && remove_dependencies) {

433

struct kmod_list *deps = kmod_module_get_dependencies(mod);

434

435

err = rmmod_do_deps_list(deps, true);

436

if (err < 0)

437

goto error;

438

}

439

440

if (!ignore_loaded) {

441

int usage = kmod_module_get_refcnt(mod);

442

443

if (usage > 0) {

444

if (!quiet_inuse)

445

LOG("Module %s is in use.\n", modname);

446

447

err = -EBUSY;

448

goto error;

449

}

450

}

451

452

if (cmd == NULL)

453

err = rmmod_do_remove_module(mod);

454

else

455

err = command_do(mod, "remove", cmd, NULL);

456

457

if (err < 0)

458

goto error;

459

460

rmmod_do_deps_list(pre, false);

461

462

error:

463

kmod_module_unref_list(pre);

464

kmod_module_unref_list(post);

465

466

return err;

467

}

468

469

static int rmmod(struct kmod_ctx *ctx, const char *alias)

470

{

471

struct kmod_list *l, *list = NULL;

472

int err;

473

474

err = kmod_module_new_from_lookup(ctx, alias, &list);

475

if (err < 0)

476

return err;

477

478

if (list == NULL) {

479

LOG("Module %s not found.\n", alias);

480

err = -ENOENT;

481

}

482

483

kmod_list_foreach(l, list) {

484

struct kmod_module *mod = kmod_module_get_module(l);

485

err = rmmod_do_module(mod, true);

486

kmod_module_unref(mod);

487

if (err < 0)

488

break;

489

}

490

491

kmod_module_unref_list(list);

492

return err;

493

}

494

495

static int rmmod_all(struct kmod_ctx *ctx, char **args, int nargs)

496

{

497

int i, err = 0;

498

499

for (i = 0; i < nargs; i++) {

500

int r = rmmod(ctx, args[i]);

501

if (r < 0)

502

err = r;

503

}

504

505

return err;

506

}

507

508

static int handle_failed_lookup(struct kmod_ctx *ctx, const char *alias)

509

{

510

struct kmod_module *mod;

511

int state, err;

512

513

DBG("lookup failed - trying to check if it's builtin\n");

514

515

err = kmod_module_new_from_name(ctx, alias, &mod);

516

if (err < 0)

517

return err;

518

519

state = kmod_module_get_initstate(mod);

520

kmod_module_unref(mod);

521

522

if (state != KMOD_MODULE_BUILTIN) {

523

LOG("Module %s not found.\n", alias);

524

return -ENOENT;

525

}

526

527

if (first_time) {

528

LOG("Module %s already in kernel (builtin).\n", alias);

529

return -ENOENT;

530

}

531

532

SHOW("builtin %s\n", alias);

533

return 0;

534

}

535

536

static void print_action(struct kmod_module *m, bool install,

537

const char *options)

538

{

539

const char *path;

540

541

if (install) {

542

printf("install %s %s\n", kmod_module_get_install_commands(m),

543

options);

544

return;

545

}

546

547

path = kmod_module_get_path(m);

548

549

if (path == NULL) {

550

assert(kmod_module_get_initstate(m) == KMOD_MODULE_BUILTIN);

551

printf("builtin %s\n", kmod_module_get_name(m));

552

} else

553

printf("insmod %s %s\n", kmod_module_get_path(m), options);

554

}

555

556

static int insmod(struct kmod_ctx *ctx, const char *alias,

557

const char *extra_options)

558

{

559

struct kmod_list *l, *list = NULL;

560

int err, flags = 0;

561

562

void (*show)(struct kmod_module *m, bool install,

563

const char *options) = NULL;

564

565

err = kmod_module_new_from_lookup(ctx, alias, &list);

566

if (err < 0)

567

return err;

568

569

if (list == NULL)

570

return handle_failed_lookup(ctx, alias);

571

572

if (strip_modversion || force)

573

flags |= KMOD_PROBE_FORCE_MODVERSION;

574

if (strip_vermagic || force)

575

flags |= KMOD_PROBE_FORCE_VERMAGIC;

576

if (ignore_commands)

577

flags |= KMOD_PROBE_IGNORE_COMMAND;

578

if (ignore_loaded)

579

flags |= KMOD_PROBE_IGNORE_LOADED;

580

if (dry_run)

581

flags |= KMOD_PROBE_DRY_RUN;

582

if (do_show || verbose > DEFAULT_VERBOSE)

583

show = &print_action;

584

585

586

if (use_blacklist)

587

flags |= KMOD_PROBE_APPLY_BLACKLIST;

588

if (first_time)

589

flags |= KMOD_PROBE_FAIL_ON_LOADED;

590

591

kmod_list_foreach(l, list) {

592

struct kmod_module *mod = kmod_module_get_module(l);

593

594

if (lookup_only)

595

printf("%s\n", kmod_module_get_name(mod));

596

else {

597

err = kmod_module_probe_insert_module(mod, flags,

598

extra_options, NULL, NULL, show);

599

}

600

601

if (err >= 0)

602

/* ignore flag return values such as a mod being blacklisted */

603

err = 0;

604

else {

605

switch (err) {

606

case -EEXIST:

607

ERR("could not insert '%s': Module already in kernel\n",

608

kmod_module_get_name(mod));

609

break;

610

case -ENOENT:

611

ERR("could not insert '%s': Unknown symbol in module, "

612

"or unknown parameter (see dmesg)\n",

613

kmod_module_get_name(mod));

614

break;

615

default:

616

ERR("could not insert '%s': %s\n",

617

kmod_module_get_name(mod),

618

strerror(-err));

619

break;

620

}

621

}

622

623

kmod_module_unref(mod);

624

}

625

626

kmod_module_unref_list(list);

627

return err;

628

}

629

630

static int insmod_all(struct kmod_ctx *ctx, char **args, int nargs)

631

{

632

int i, err = 0;

633

634

for (i = 0; i < nargs; i++) {

635

int r = insmod(ctx, args[i], NULL);

636

if (r < 0)

637

err = r;

638

}

639

640

return err;

641

}

642

643

static void env_modprobe_options_append(const char *value)

644

{

645

const char *old = getenv("MODPROBE_OPTIONS");

646

char *env;

647

648

if (old == NULL) {

649

setenv("MODPROBE_OPTIONS", value, 1);

650

return;

651

}

652

653

if (asprintf(&env, "%s %s", old, value) < 0) {

654

ERR("could not append value to $MODPROBE_OPTIONS\n");

655

return;

656

}

657

658

if (setenv("MODPROBE_OPTIONS", env, 1) < 0)

659

ERR("could not setenv(MODPROBE_OPTIONS, \"%s\")\n", env);

660

free(env);

661

}

662

663

static int options_from_array(char **args, int nargs, char **output)

664

{

665

char *opts = NULL;

666

size_t optslen = 0;

667

int i, err = 0;

668

669

for (i = 1; i < nargs; i++) {

670

size_t len = strlen(args[i]);

671

size_t qlen = 0;

672

const char *value;

673

void *tmp;

674

675

value = strchr(args[i], '=');

676

if (value) {

677

value++;

678

if (*value != '"' && *value != '\'') {

679

if (strchr(value, ' '))

680

qlen = 2;

681

}

682

}

683

684

tmp = realloc(opts, optslen + len + qlen + 2);

685

if (!tmp) {

686

err = -errno;

687

free(opts);

688

opts = NULL;

689

ERR("could not gather module options: out-of-memory\n");

690

break;

691

}

692

opts = tmp;

693

if (optslen > 0) {

694

opts[optslen] = ' ';

695

optslen++;

696

}

697

if (qlen == 0) {

698

memcpy(opts + optslen, args[i], len + 1);

699

optslen += len;

700

} else {

701

size_t keylen = value - args[i];

702

size_t valuelen = len - keylen;

703

memcpy(opts + optslen, args[i], keylen);

704

optslen += keylen;

705

opts[optslen] = '"';

706

optslen++;

707

memcpy(opts + optslen, value, valuelen);

708

optslen += valuelen;

709

opts[optslen] = '"';

710

optslen++;

711

opts[optslen] = '\0';

712

}

713

}

714

715

*output = opts;

716

return err;

717

}

718

719

static char **prepend_options_from_env(int *p_argc, char **orig_argv)

720

{

721

const char *p, *env = getenv("MODPROBE_OPTIONS");

722

char **new_argv, *str_start, *str_end, *str, *s, *quote;

723

int i, argc = *p_argc;

724

size_t envlen, space_count = 0;

725

726

if (env == NULL)

727

return orig_argv;

728

729

for (p = env; *p != '\0'; p++) {

730

if (*p == ' ')

731

space_count++;

732

}

733

734

envlen = p - env;

735

new_argv = malloc(sizeof(char *) * (argc + space_count + 3 + envlen));

736

if (new_argv == NULL)

737

return NULL;

738

739

new_argv[0] = orig_argv[0];

740

str_start = str = (char *) (new_argv + argc + space_count + 3);

741

memcpy(str, env, envlen + 1);

742

743

str_end = str_start + envlen;

744

745

quote = NULL;

746

for (i = 1, s = str; *s != '\0'; s++) {

747

if (quote == NULL) {

748

if (*s == ' ') {

749

new_argv[i] = str;

750

i++;

751

*s = '\0';

752

str = s + 1;

753

} else if (*s == '"' || *s == '\'')

754

quote = s;

755

} else {

756

if (*s == *quote) {

757

if (quote == str) {

758

new_argv[i] = str + 1;

759

i++;

760

*s = '\0';

761

str = s + 1;

762

} else {

763

char *it;

764

for (it = quote; it < s - 1; it++)

765

it[0] = it[1];

766

for (it = s - 1; it < str_end - 2; it++)

767

it[0] = it[2];

768

str_end -= 2;

769

*str_end = '\0';

770

s -= 2;

771

}

772

quote = NULL;

773

}

774

}

775

}

776

if (str < s) {

777

new_argv[i] = str;

778

i++;

779

}

780

781

memcpy(new_argv + i, orig_argv + 1, sizeof(char *) * (argc - 1));

782

new_argv[i + argc] = NULL;

783

*p_argc = i + argc - 1;

784

785

return new_argv;

786

}

787

788

static void log_syslog(void *data, int priority, const char *file, int line,

789

const char *fn, const char *format, va_list args)

790

{

791

char *str, buf[32];

792

const char *prioname;

793

794

switch (priority) {

795

case LOG_CRIT:

796

prioname = "FATAL";

797

break;

798

case LOG_ERR:

799

prioname = "ERROR";

800

break;

801

case LOG_WARNING:

802

prioname = "WARNING";

803

break;

804

case LOG_NOTICE:

805

prioname = "NOTICE";

806

break;

807

case LOG_INFO:

808

prioname = "INFO";

809

break;

810

case LOG_DEBUG:

811

prioname = "DEBUG";

812

break;

813

default:

814

snprintf(buf, sizeof(buf), "LOG-%03d", priority);

815

prioname = buf;

816

}

817

818

if (vasprintf(&str, format, args) < 0)

819

return;

820

#ifdef ENABLE_DEBUG

821

syslog(LOG_NOTICE, "%s: %s:%d %s() %s", prioname, file, line, fn, str);

822

#else

823

syslog(LOG_NOTICE, "%s: %s", prioname, str);

824

#endif

825

free(str);

826

(void)data;

827

}

828

829

static int do_modprobe(int argc, char **orig_argv)

830

{

831

struct kmod_ctx *ctx;

832

char **args = NULL, **argv;

833

const char **config_paths = NULL;

834

int nargs = 0, n_config_paths = 0;

835

char dirname_buf[PATH_MAX];

836

const char *dirname = NULL;

837

const char *root = NULL;

838

const char *kversion = NULL;

839

int use_all = 0;

840

int do_remove = 0;

841

int do_show_config = 0;

842

int do_show_modversions = 0;

843

int err;

844

845

argv = prepend_options_from_env(&argc, orig_argv);

846

if (argv == NULL) {

847

fputs("Error: could not prepend options from command line\n",

848

stderr);

849

return EXIT_FAILURE;

850

}

851

852

for (;;) {

853

int c, idx = 0;

854

c = getopt_long(argc, argv, cmdopts_s, cmdopts, &idx);

855

if (c == -1)

856

break;

857

switch (c) {

858

case 'a':

859

log_priority = LOG_WARNING;

860

use_all = 1;

861

break;

862

case 'r':

863

do_remove = 1;

864

break;

865

case 5:

866

remove_dependencies = 1;

867

break;

868

case 'R':

869

lookup_only = 1;

870

break;

871

case 3:

872

first_time = 1;

873

break;

874

case 'i':

875

ignore_commands = 1;

876

break;

877

case 'b':

878

use_blacklist = 1;

879

break;

880

case 'f':

881

force = 1;

882

break;

883

case 2:

884

strip_modversion = 1;

885

break;

886

case 1:

887

strip_vermagic = 1;

888

break;

889

case 'D':

890

ignore_loaded = 1;

891

dry_run = 1;

892

do_show = 1;

893

break;

894

case 'c':

895

do_show_config = 1;

896

break;

897

case 4:

898

do_show_modversions = 1;

899

break;

900

case 'n':

901

dry_run = 1;

902

break;

903

case 'C': {

904

size_t bytes = sizeof(char *) * (n_config_paths + 2);

905

void *tmp = realloc(config_paths, bytes);

906

if (!tmp) {

907

fputs("Error: out-of-memory\n", stderr);

908

goto cmdline_failed;

909

}

910

config_paths = tmp;

911

config_paths[n_config_paths] = optarg;

912

n_config_paths++;

913

config_paths[n_config_paths] = NULL;

914

915

env_modprobe_options_append("-C");

916

env_modprobe_options_append(optarg);

917

break;

918

}

919

case 'd':

920

root = optarg;

921

break;

922

case 'S':

923

kversion = optarg;

924

break;

925

case 's':

926

env_modprobe_options_append("-s");

927

use_syslog = 1;

928

break;

929

case 'q':

930

env_modprobe_options_append("-q");

931

verbose = LOG_EMERG;

932

break;

933

case 'v':

934

env_modprobe_options_append("-v");

935

verbose++;

936

break;

937

case 'V':

938

puts(PACKAGE " version " VERSION);

939

if (argv != orig_argv)

940

free(argv);

941

free(config_paths);

942

return EXIT_SUCCESS;

943

case 'h':

944

help(basename(argv[0]));

945

if (argv != orig_argv)

946

free(argv);

947

free(config_paths);

948

return EXIT_SUCCESS;

949

case '?':

950

goto cmdline_failed;

951

default:

952

fprintf(stderr, "Error: unexpected getopt_long() value '%c'.\n",

953

c);

954

goto cmdline_failed;

955

}

956

}

957

958

args = argv + optind;

959

nargs = argc - optind;

960

961

if (!do_show_config) {

962

if (nargs == 0) {

963

fputs("Error: missing parameters. See -h.\n", stderr);

964

goto cmdline_failed;

965

}

966

}

967

968

if (root != NULL || kversion != NULL) {

969

struct utsname u;

970

if (root == NULL)

971

root = "";

972

if (kversion == NULL) {

973

if (uname(&u) < 0) {

974

fprintf(stderr, "Error: uname() failed: %s\n",

975

strerror(errno));

976

goto cmdline_failed;

977

}

978

kversion = u.release;

979

}

980

snprintf(dirname_buf, sizeof(dirname_buf),

981

"%s" ROOTPREFIX "/lib/modules/%s", root,

982

kversion);

983

dirname = dirname_buf;

984

}

985

986

ctx = kmod_new(dirname, config_paths);

987

if (!ctx) {

988

fputs("Error: kmod_new() failed!\n", stderr);

989

goto cmdline_failed;

990

}

991

kmod_load_resources(ctx);

992

993

kmod_set_log_priority(ctx, verbose);

994

if (use_syslog) {

995

openlog("modprobe", LOG_CONS, LOG_DAEMON);

996

kmod_set_log_fn(ctx, log_syslog, NULL);

997

}

998

999

if (do_show_config)

1000

err = show_config(ctx);

1001

else if (do_show_modversions)

1002

err = show_modversions(ctx, args[0]);

1003

else if (do_remove)

1004

err = rmmod_all(ctx, args, nargs);

1005

else if (use_all)

1006

err = insmod_all(ctx, args, nargs);

1007

else {

1008

char *opts;

1009

err = options_from_array(args, nargs, &opts);

1010

if (err == 0) {

1011

err = insmod(ctx, args[0], opts);

1012

free(opts);

1013

}

1014

}

1015

1016

kmod_unref(ctx);

1017

1018

if (use_syslog)

1019

closelog();

1020

1021

if (argv != orig_argv)

1022

free(argv);

1023

1024

free(config_paths);

1025

return err >= 0 ? EXIT_SUCCESS : EXIT_FAILURE;

1026

1027

cmdline_failed:

1028

if (argv != orig_argv)

1029

free(argv);

1030

free(config_paths);

1031

return EXIT_FAILURE;

1032

}

1033

1034

#include "kmod.h"

1035

1036

const struct kmod_cmd kmod_cmd_compat_modprobe = {

1037

.name = "modprobe",

1038

.cmd = do_modprobe,

1039

.help = "compat modprobe command",

1040

};