/mandos/release : revision 24.1.147

1

/* -*- mode: c; coding: utf-8; after-save-hook: (lambda () (let* ((find-build-directory (lambda (try-directory &optional base-directory) (let ((base-directory (or base-directory try-directory))) (cond ((equal try-directory "/") base-directory) ((file-readable-p (concat (file-name-as-directory try-directory) "Makefile")) try-directory) ((funcall find-build-directory (directory-file-name (file-name-directory try-directory)) base-directory)))))) (build-directory (funcall find-build-directory (buffer-file-name))) (local-build-directory (if (fboundp 'file-local-name) (file-local-name build-directory) (or (file-remote-p build-directory 'localname) build-directory))) (command (file-relative-name (file-name-sans-extension (buffer-file-name)) build-directory))) (pcase (progn (if (get-buffer "*Test*") (kill-buffer "*Test*")) (process-file-shell-command (let ((qbdir (shell-quote-argument local-build-directory)) (qcmd (shell-quote-argument command))) (format "cd %s && CFLAGS=-Werror make --silent %s && %s --test --verbose" qbdir qcmd qcmd)) nil "*Test*")) (0 (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w)))) (_ (with-current-buffer "*Test*" (compilation-mode) (cd-absolute build-directory)) (display-buffer "*Test*" '(display-buffer-in-side-window)))))); -*- */

2

/*

3

* Mandos password agent - Simple password agent to run Mandos client

4

*

5

6

7

*

8

* This file is part of Mandos.

9

*

10

* Mandos is free software: you can redistribute it and/or modify it

11

* under the terms of the GNU General Public License as published by

12

* the Free Software Foundation, either version 3 of the License, or

13

* (at your option) any later version.

14

*

15

* Mandos is distributed in the hope that it will be useful, but

16

* WITHOUT ANY WARRANTY; without even the implied warranty of

17

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

18

* General Public License for more details.

19

*

20

* You should have received a copy of the GNU General Public License

21

* along with Mandos. If not, see <http://www.gnu.org/licenses/>.

22

*

23

* Contact the authors at <mandos@recompile.se>.

24

*/

25

26

#define _GNU_SOURCE

27

#include <inttypes.h> /* uintmax_t, PRIuMAX, PRIdMAX,

28

intmax_t, uint32_t, SCNx32,

29

SCNuMAX, SCNxMAX */

30

#include <stddef.h> /* size_t */

31

#include <sys/types.h> /* pid_t, uid_t, gid_t, getuid(),

32

getpid() */

33

#include <stdbool.h> /* bool, true, false */

34

#include <signal.h> /* struct sigaction, sigset_t,

35

sigemptyset(), sigaddset(),

36

SIGCHLD, pthread_sigmask(),

37

SIG_BLOCK, SIG_SETMASK, SA_RESTART,

38

SA_NOCLDSTOP, sigfillset(), kill(),

39

SIGTERM, sigdelset(), SIGKILL,

40

NSIG, sigismember(), SA_ONSTACK,

41

SIG_DFL, SIG_IGN, SIGINT, SIGQUIT,

42

SIGHUP, SIGSTOP, SIG_UNBLOCK */

43

#include <stdlib.h> /* EXIT_SUCCESS, EXIT_FAILURE,

44

malloc(), free(), strtoumax(),

45

realloc(), setenv(), calloc(),

46

mkdtemp(), mkostemp() */

47

#include <iso646.h> /* not, or, and, xor */

48

#include <error.h> /* error() */

49

#include <sysexits.h> /* EX_USAGE, EX_OSERR, EX_OSFILE */

50

#include <errno.h> /* errno, error_t, EACCES,

51

ENAMETOOLONG, ENOENT, ENOTDIR,

52

ENOMEM, EEXIST, ECHILD, EPERM,

53

EAGAIN, EINTR, ENOBUFS, EADDRINUSE,

54

ECONNREFUSED, ECONNRESET,

55

ETOOMANYREFS, EMSGSIZE, EBADF,

56

EINVAL */

57

#include <string.h> /* strdup(), memcpy(),

58

explicit_bzero(), memset(),

59

strcmp(), strlen(), strncpy(),

60

memcmp(), basename() */

61

#include <argz.h> /* argz_create(), argz_count(),

62

argz_extract(), argz_next(),

63

argz_add() */

64

#include <sys/epoll.h> /* epoll_create1(), EPOLL_CLOEXEC,

65

epoll_ctl(), EPOLL_CTL_ADD,

66

struct epoll_event, EPOLLIN,

67

EPOLLRDHUP, EPOLLOUT,

68

epoll_pwait() */

69

#include <time.h> /* struct timespec, clock_gettime(),

70

CLOCK_MONOTONIC */

71

#include <argp.h> /* struct argp_option, OPTION_HIDDEN,

72

OPTION_ALIAS, struct argp_state,

73

ARGP_ERR_UNKNOWN, ARGP_KEY_ARGS,

74

struct argp, argp_parse(),

75

ARGP_NO_EXIT */

76

#include <stdint.h> /* SIZE_MAX */

77

#include <unistd.h> /* uid_t, gid_t, close(), pipe2(),

78

fork(), _exit(), dup2(),

79

STDOUT_FILENO, setresgid(),

80

setresuid(), execv(), ssize_t,

81

read(), dup3(), getuid(), dup(),

82

STDERR_FILENO, pause(), write(),

83

rmdir(), unlink(), getpid() */

84

#include <sys/mman.h> /* munlock(), mlock() */

85

#include <fcntl.h> /* O_CLOEXEC, O_NONBLOCK, fcntl(),

86

F_GETFD, F_GETFL, FD_CLOEXEC,

87

open(), O_WRONLY, O_NOCTTY,

88

O_RDONLY, O_NOFOLLOW */

89

#include <sys/wait.h> /* waitpid(), WNOHANG, WIFEXITED(),

90

WEXITSTATUS() */

91

#include <limits.h> /* PIPE_BUF, NAME_MAX, INT_MAX */

92

#include <sys/inotify.h> /* inotify_init1(), IN_NONBLOCK,

93

IN_CLOEXEC, inotify_add_watch(),

94

IN_CLOSE_WRITE, IN_MOVED_TO,

95

IN_MOVED_FROM, IN_DELETE,

96

IN_EXCL_UNLINK, IN_ONLYDIR,

97

struct inotify_event */

98

#include <fnmatch.h> /* fnmatch(), FNM_FILE_NAME */

99

#include <stdio.h> /* asprintf(), FILE, stderr, fopen(),

100

fclose(), getline(), sscanf(),

101

feof(), ferror(), rename(),

102

fdopen(), fprintf(), fscanf() */

103

#include <glib.h> /* GKeyFile, g_key_file_free(), g_key_file_new(),

104

GError, g_key_file_load_from_file(),

105

G_KEY_FILE_NONE, TRUE, G_FILE_ERROR_NOENT,

106

g_key_file_get_string(), guint64,

107

g_key_file_get_uint64(),

108

G_KEY_FILE_ERROR_KEY_NOT_FOUND, gconstpointer,

109

g_assert_true(), g_assert_nonnull(),

110

g_assert_null(), g_assert_false(),

111

g_assert_cmpint(), g_assert_cmpuint(),

112

g_test_skip(), g_assert_cmpstr(),

113

g_test_init(), g_test_add(), g_test_run(),

114

GOptionContext, g_option_context_new(),

115

g_option_context_set_help_enabled(), FALSE,

116

g_option_context_set_ignore_unknown_options(),

117

gboolean, GOptionEntry, G_OPTION_ARG_NONE,

118

g_option_context_add_main_entries(),

119

g_option_context_parse(),

120

g_option_context_free(), g_error() */

121

#include <sys/un.h> /* struct sockaddr_un, SUN_LEN */

122

#include <sys/socket.h> /* AF_LOCAL, socket(), PF_LOCAL,

123

SOCK_DGRAM, SOCK_NONBLOCK,

124

SOCK_CLOEXEC, connect(),

125

struct sockaddr, socklen_t,

126

shutdown(), SHUT_RD, send(),

127

MSG_NOSIGNAL, bind(), recv(),

128

socketpair() */

129

#include <glob.h> /* globfree(), glob_t, glob(),

130

GLOB_ERR, GLOB_NOSORT, GLOB_MARK,

131

GLOB_ABORTED, GLOB_NOMATCH,

132

GLOB_NOSPACE */

133

134

/* End of includes */

135

136

/* Start of declarations of private types and functions */

137

138

/* microseconds of CLOCK_MONOTONIC absolute time; 0 means unset */

139

typedef uintmax_t mono_microsecs;

140

141

/* "task_queue" - A queue of tasks to be run */

142

typedef struct {

143

struct task_struct *tasks; /* Tasks in this queue */

144

size_t length; /* Number of tasks */

145

/* Memory allocated for "tasks", in bytes */

146

size_t allocated;

147

/* Time when this queue should be run, at the latest */

148

mono_microsecs next_run;

149

} __attribute__((designated_init)) task_queue;

150

151

/* "task_func" - A function type for task functions

152

153

I.e. functions for the code which runs when a task is run, all have

154

this type */

155

typedef void (task_func) (const struct task_struct,

156

task_queue *const)

157

__attribute__((nonnull));

158

159

/* "buffer" - A data buffer for a growing array of bytes

160

161

Used for the "password" variable */

162

typedef struct {

163

char *data;

164

size_t length;

165

size_t allocated;

166

} __attribute__((designated_init)) buffer;

167

168

/* "string_set" - A set type which can contain strings

169

170

Used by the "cancelled_filenames" variable */

171

typedef struct {

172

char *argz; /* Do not access these except in */

173

size_t argz_len; /* the string_set_* functions */

174

} __attribute__((designated_init)) string_set;

175

176

/* "task_context" - local variables for tasks

177

178

This data structure distinguishes between different tasks which are

179

using the same function. This data structure is passed to every

180

task function when each task is run.

181

182

Note that not every task uses every struct member. */

183

typedef struct task_struct {

184

task_func *const func; /* The function run by this task */

185

char *const question_filename; /* The question file */

186

const pid_t pid; /* Mandos client process ID */

187

const int epoll_fd; /* The epoll set file descriptor */

188

bool *const quit_now; /* Set to true on fatal errors */

189

const int fd; /* General purpose file descriptor */

190

bool *const mandos_client_exited; /* Set true when client exits */

191

buffer *const password; /* As read from client process */

192

bool *const password_is_read; /* "password" is done growing */

193

char *filename; /* General purpose file name */

194

/* A set of strings of all the file names of questions which have

195

been cancelled for any reason; tasks pertaining to these question

196

files should not be run */

197

string_set *const cancelled_filenames;

198

const mono_microsecs notafter; /* "NotAfter" from question file */

199

/* Updated before each queue run; is compared with queue.next_run */

200

const mono_microsecs *const current_time;

201

} __attribute__((designated_init)) task_context;

202

203

/* Declare all our functions here so we can define them in any order

204

below. Note: test functions are *not* declared here, they are

205

declared in the test section. */

206

__attribute__((warn_unused_result))

207

static bool should_only_run_tests(int *, char **[]);

208

__attribute__((warn_unused_result, cold))

209

static bool run_tests(int, char *[]);

210

static void handle_sigchld(__attribute__((unused)) int sig){}

211

__attribute__((warn_unused_result, malloc))

212

task_queue *create_queue(void);

213

__attribute__((nonnull, warn_unused_result))

214

bool add_to_queue(task_queue *const, const task_context);

215

__attribute__((nonnull))

216

void cleanup_task(const task_context *const);

217

__attribute__((nonnull))

218

void cleanup_queue(task_queue *const *const);

219

__attribute__((pure, nonnull, warn_unused_result))

220

bool queue_has_question(const task_queue *const);

221

__attribute__((nonnull))

222

void cleanup_close(const int *const);

223

__attribute__((nonnull))

224

void cleanup_string(char *const *const);

225

__attribute__((nonnull))

226

void cleanup_buffer(buffer *const);

227

__attribute__((pure, nonnull, warn_unused_result))

228

bool string_set_contains(const string_set, const char *const);

229

__attribute__((nonnull, warn_unused_result))

230

bool string_set_add(string_set *const, const char *const);

231

__attribute__((nonnull))

232

void string_set_clear(string_set *);

233

void string_set_swap(string_set *const, string_set *const);

234

__attribute__((nonnull, warn_unused_result))

235

bool start_mandos_client(task_queue *const, const int, bool *const,

236

bool *const, buffer *const, bool *const,

237

const struct sigaction *const,

238

const sigset_t, const char *const,

239

const uid_t, const gid_t,

240

const char *const *const);

241

__attribute__((nonnull))

242

task_func wait_for_mandos_client_exit;

243

__attribute__((nonnull))

244

task_func read_mandos_client_output;

245

__attribute__((warn_unused_result))

246

bool add_inotify_dir_watch(task_queue *const, const int, bool *const,

247

buffer *const, const char *const,

248

string_set *, const mono_microsecs *const,

249

bool *const, bool *const);

250

__attribute__((nonnull))

251

task_func read_inotify_event;

252

__attribute__((nonnull))

253

task_func open_and_parse_question;

254

__attribute__((nonnull))

255

task_func cancel_old_question;

256

__attribute__((nonnull))

257

task_func connect_question_socket;

258

__attribute__((nonnull))

259

task_func send_password_to_socket;

260

__attribute__((warn_unused_result))

261

bool add_existing_questions(task_queue *const, const int,

262

buffer *const, string_set *,

263

const mono_microsecs *const,

264

bool *const, bool *const,

265

const char *const);

266

__attribute__((nonnull, warn_unused_result))

267

bool wait_for_event(const int, const mono_microsecs,

268

const mono_microsecs);

269

bool run_queue(task_queue **const, string_set *const, bool *const);

270

bool clear_all_fds_from_epoll_set(const int);

271

mono_microsecs get_current_time(void);

272

__attribute__((nonnull, warn_unused_result))

273

bool setup_signal_handler(struct sigaction *const);

274

__attribute__((nonnull))

275

bool restore_signal_handler(const struct sigaction *const);

276

__attribute__((nonnull, warn_unused_result))

277

bool block_sigchld(sigset_t *const);

278

__attribute__((nonnull))

279

bool restore_sigmask(const sigset_t *const);

280

__attribute__((nonnull))

281

bool parse_arguments(int, char *[], const bool, char **, char **,

282

uid_t *const , gid_t *const, char **, size_t *);

283

284

/* End of declarations of private types and functions */

285

286

/* Start of "main" section; this section LACKS TESTS!

287

288

Code here should be as simple as possible. */

289

290

/* These are required to be global by Argp */

291

const char *argp_program_version = "password-agent " VERSION;

292

const char *argp_program_bug_address = "<mandos@recompile.se>";

293

294

int main(int argc, char *argv[]){

295

296

/* If the --test option is passed, skip all normal operations and

297

instead only run the run_tests() function, which also does all

298

its own option parsing, so we don't have to do anything here. */

299

if(should_only_run_tests(&argc, &argv)){

300

if(run_tests(argc, argv)){

301

return EXIT_SUCCESS; /* All tests successful */

302

}

303

return EXIT_FAILURE; /* Some test(s) failed */

304

}

305

306

__attribute__((cleanup(cleanup_string)))

307

char *agent_directory = NULL;

308

309

__attribute__((cleanup(cleanup_string)))

310

char *helper_directory = NULL;

311

312

uid_t user = 0;

313

gid_t group = 0;

314

315

__attribute__((cleanup(cleanup_string)))

316

char *mandos_argz = NULL;

317

size_t mandos_argz_length = 0;

318

319

if(not parse_arguments(argc, argv, true, &agent_directory,

320

&helper_directory, &user, &group,

321

&mandos_argz, &mandos_argz_length)){

322

/* This should never happen, since "true" is passed as the third

323

argument to parse_arguments() above, which should make

324

argp_parse() call exit() if any parsing error occurs. */

325

error(EX_USAGE, errno, "Failed to parse arguments");

326

}

327

328

const char default_agent_directory[] = "/run/systemd/ask-password";

329

const char default_helper_directory[]

330

= "/lib/mandos/plugin-helpers";

331

const char *const default_argv[]

332

= {"/lib/mandos/plugins.d/mandos-client", NULL };

333

334

/* Set variables to default values if unset */

335

if(agent_directory == NULL){

336

agent_directory = strdup(default_agent_directory);

337

if(agent_directory == NULL){

338

error(EX_OSERR, errno, "Failed strdup()");

339

}

340

}

341

if(helper_directory == NULL){

342

helper_directory = strdup(default_helper_directory);

343

if(helper_directory == NULL){

344

error(EX_OSERR, errno, "Failed strdup()");

345

}

346

}

347

if(user == 0){

348

user = 65534; /* nobody */

349

}

350

if(group == 0){

351

group = 65534; /* nogroup */

352

}

353

/* If parse_opt did not create an argz vector, create one with

354

default values */

355

if(mandos_argz == NULL){

356

#ifdef __GNUC__

357

#pragma GCC diagnostic push

358

/* argz_create() takes a non-const argv for some unknown reason -

359

argz_create() isn't modifying the strings, just copying them.

360

Therefore, this cast to non-const should be safe. */

361

#pragma GCC diagnostic ignored "-Wcast-qual"

362

#endif

363

errno = argz_create((char *const *)default_argv, &mandos_argz,

364

&mandos_argz_length);

365

#ifdef __GNUC__

366

#pragma GCC diagnostic pop

367

#endif

368

if(errno != 0){

369

error(EX_OSERR, errno, "Failed argz_create()");

370

}

371

}

372

/* Use argz vector to create a normal argv, usable by execv() */

373

374

char **mandos_argv = malloc((argz_count(mandos_argz,

375

mandos_argz_length)

376

+ 1) * sizeof(char *));

377

if(mandos_argv == NULL){

378

error_t saved_errno = errno;

379

free(mandos_argz);

380

error(EX_OSERR, saved_errno, "Failed malloc()");

381

}

382

argz_extract(mandos_argz, mandos_argz_length, mandos_argv);

383

384

sigset_t orig_sigmask;

385

if(not block_sigchld(&orig_sigmask)){

386

return EX_OSERR;

387

}

388

389

struct sigaction old_sigchld_action;

390

if(not setup_signal_handler(&old_sigchld_action)){

391

return EX_OSERR;

392

}

393

394

mono_microsecs current_time = 0;

395

396

bool mandos_client_exited = false;

397

bool quit_now = false;

398

__attribute__((cleanup(cleanup_close)))

399

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

400

if(epoll_fd < 0){

401

error(EX_OSERR, errno, "Failed to create epoll set fd");

402

}

403

__attribute__((cleanup(cleanup_queue)))

404

task_queue *queue = create_queue();

405

if(queue == NULL){

406

error(EX_OSERR, errno, "Failed to create task queue");

407

}

408

409

__attribute__((cleanup(cleanup_buffer)))

410

buffer password = {};

411

bool password_is_read = false;

412

413

__attribute__((cleanup(string_set_clear)))

414

string_set cancelled_filenames = {};

415

416

/* Add tasks to queue */

417

if(not start_mandos_client(queue, epoll_fd, &mandos_client_exited,

418

&quit_now, &password, &password_is_read,

419

&old_sigchld_action, orig_sigmask,

420

helper_directory, user, group,

421

(const char *const *)mandos_argv)){

422

return EX_OSERR; /* Error has already been printed */

423

}

424

/* These variables were only for start_mandos_client() and are not

425

needed anymore */

426

free(mandos_argv);

427

free(mandos_argz);

428

mandos_argz = NULL;

429

if(not add_inotify_dir_watch(queue, epoll_fd, &quit_now, &password,

430

agent_directory, &cancelled_filenames,

431

&current_time, &mandos_client_exited,

432

&password_is_read)){

433

switch(errno){ /* Error has already been printed */

434

case EACCES:

435

case ENAMETOOLONG:

436

case ENOENT:

437

case ENOTDIR:

438

return EX_OSFILE;

439

default:

440

return EX_OSERR;

441

}

442

}

443

if(not add_existing_questions(queue, epoll_fd, &password,

444

&cancelled_filenames, &current_time,

445

&mandos_client_exited,

446

&password_is_read, agent_directory)){

447

return EXIT_FAILURE; /* Error has already been printed */

448

}

449

450

/* Run queue */

451

do {

452

current_time = get_current_time();

453

if(not wait_for_event(epoll_fd, queue->next_run, current_time)){

454

const error_t saved_errno = errno;

455

error(EXIT_FAILURE, saved_errno, "Failure while waiting for"

456

" events");

457

}

458

459

current_time = get_current_time();

460

if(not run_queue(&queue, &cancelled_filenames, &quit_now)){

461

const error_t saved_errno = errno;

462

error(EXIT_FAILURE, saved_errno, "Failure while running queue");

463

}

464

465

/* When no tasks about questions are left in the queue, break out

466

of the loop (and implicitly exit the program) */

467

} while(queue_has_question(queue));

468

469

restore_signal_handler(&old_sigchld_action);

470

restore_sigmask(&orig_sigmask);

471

472

return EXIT_SUCCESS;

473

}

474

475

__attribute__((warn_unused_result))

476

mono_microsecs get_current_time(void){

477

struct timespec currtime;

478

if(clock_gettime(CLOCK_MONOTONIC, &currtime) != 0){

479

error(0, errno, "Failed to get current time");

480

return 0;

481

}

482

return ((mono_microsecs)currtime.tv_sec * 1000000) /* seconds */

483

+ ((mono_microsecs)currtime.tv_nsec / 1000); /* nanoseconds */

484

}

485

486

/* End of "main" section */

487

488

/* Start of regular code section; ALL this code has tests */

489

490

__attribute__((nonnull))

491

bool parse_arguments(int argc, char *argv[], const bool exit_failure,

492

char **agent_directory, char **helper_directory,

493

uid_t *const user, gid_t *const group,

494

char **mandos_argz, size_t *mandos_argz_length){

495

496

const struct argp_option options[] = {

497

{ .name="agent-directory",.key='d', .arg="DIRECTORY",

498

.doc="Systemd password agent directory" },

499

{ .name="helper-directory",.key=128, .arg="DIRECTORY",

500

.doc="Mandos Client password helper directory" },

501

{ .name="plugin-helper-dir", .key=129, /* From plugin-runner */

502

.flags=OPTION_HIDDEN | OPTION_ALIAS },

503

{ .name="user", .key='u', .arg="USERID",

504

.doc="User ID the Mandos Client will use as its unprivileged"

505

" user" },

506

{ .name="userid", .key=130, /* From plugin--runner */

507

.flags=OPTION_HIDDEN | OPTION_ALIAS },

508

{ .name="group", .key='g', .arg="GROUPID",

509

.doc="Group ID the Mandos Client will use as its unprivileged"

510

" group" },

511

{ .name="groupid", .key=131, /* From plugin--runner */

512

.flags=OPTION_HIDDEN | OPTION_ALIAS },

513

{ .name="test", .key=255, /* See should_only_run_tests() */

514

.doc="Skip normal operation, and only run self-tests. See"

515

" --test --help.", .group=10, },

516

{ NULL },

517

};

518

519

__attribute__((nonnull(3)))

520

error_t parse_opt(int key, char *arg, struct argp_state *state){

521

errno = 0;

522

switch(key){

523

case 'd': /* --agent-directory */

524

*agent_directory = strdup(arg);

525

break;

526

case 128: /* --helper-directory */

527

case 129: /* --plugin-helper-dir */

528

*helper_directory = strdup(arg);

529

break;

530

case 'u': /* --user */

531

case 130: /* --userid */

532

{

533

char *tmp;

534

uintmax_t tmp_id = 0;

535

errno = 0;

536

tmp_id = (uid_t)strtoumax(arg, &tmp, 10);

537

if(errno != 0 or tmp == arg or *tmp != '\0'

538

or tmp_id != (uid_t)tmp_id or (uid_t)tmp_id == 0){

539

return ARGP_ERR_UNKNOWN;

540

}

541

*user = (uid_t)tmp_id;

542

errno = 0;

543

break;

544

}

545

case 'g': /* --group */

546

case 131: /* --groupid */

547

{

548

char *tmp;

549

uintmax_t tmp_id = 0;

550

errno = 0;

551

tmp_id = (uid_t)strtoumax(arg, &tmp, 10);

552

if(errno != 0 or tmp == arg or *tmp != '\0'

553

or tmp_id != (gid_t)tmp_id or (gid_t)tmp_id == 0){

554

return ARGP_ERR_UNKNOWN;

555

}

556

*group = (gid_t)tmp_id;

557

errno = 0;

558

break;

559

}

560

case ARGP_KEY_ARGS:

561

/* Copy arguments into argz vector */

562

return argz_create(state->argv + state->next, mandos_argz,

563

mandos_argz_length);

564

default:

565

return ARGP_ERR_UNKNOWN;

566

}

567

return errno;

568

}

569

570

const struct argp argp = {

571

.options=options,

572

.parser=parse_opt,

573

.args_doc="[MANDOS_CLIENT [OPTION...]]\n--test",

574

.doc = "Mandos password agent -- runs Mandos client as a"

575

" systemd password agent",

576

};

577

578

errno = argp_parse(&argp, argc, argv,

579

exit_failure ? 0 : ARGP_NO_EXIT, NULL, NULL);

580

581

return errno == 0;

582

}

583

584

__attribute__((nonnull, warn_unused_result))

585

bool block_sigchld(sigset_t *const orig_sigmask){

586

sigset_t sigchld_sigmask;

587

if(sigemptyset(&sigchld_sigmask) < 0){

588

error(0, errno, "Failed to empty signal set");

589

return false;

590

}

591

if(sigaddset(&sigchld_sigmask, SIGCHLD) < 0){

592

error(0, errno, "Failed to add SIGCHLD to signal set");

593

return false;

594

}

595

if(pthread_sigmask(SIG_BLOCK, &sigchld_sigmask, orig_sigmask) != 0){

596

error(0, errno, "Failed to block SIGCHLD signal");

597

return false;

598

}

599

return true;

600

}

601

602

__attribute__((nonnull, warn_unused_result, const))

603

bool restore_sigmask(const sigset_t *const orig_sigmask){

604

if(pthread_sigmask(SIG_SETMASK, orig_sigmask, NULL) != 0){

605

error(0, errno, "Failed to restore blocked signals");

606

return false;

607

}

608

return true;

609

}

610

611

__attribute__((nonnull, warn_unused_result))

612

bool setup_signal_handler(struct sigaction *const old_sigchld_action){

613

struct sigaction sigchld_action = {

614

.sa_handler=handle_sigchld,

615

.sa_flags=SA_RESTART | SA_NOCLDSTOP,

616

};

617

/* Set all signals in "sa_mask" struct member; this makes all

618

signals automatically blocked during signal handler */

619

if(sigfillset(&sigchld_action.sa_mask) != 0){

620

error(0, errno, "Failed to do sigfillset()");

621

return false;

622

}

623

if(sigaction(SIGCHLD, &sigchld_action, old_sigchld_action) != 0){

624

error(0, errno, "Failed to set SIGCHLD signal handler");

625

return false;

626

}

627

return true;

628

}

629

630

__attribute__((nonnull, warn_unused_result))

631

bool restore_signal_handler(const struct sigaction *const

632

old_sigchld_action){

633

if(sigaction(SIGCHLD, old_sigchld_action, NULL) != 0){

634

error(0, errno, "Failed to restore signal handler");

635

return false;

636

}

637

return true;

638

}

639

640

__attribute__((warn_unused_result, malloc))

641

task_queue *create_queue(void){

642

task_queue *queue = malloc(sizeof(task_queue));

643

if(queue){

644

queue->tasks = NULL;

645

queue->length = 0;

646

queue->allocated = 0;

647

queue->next_run = 0;

648

}

649

return queue;

650

}

651

652

__attribute__((nonnull, warn_unused_result))

653

bool add_to_queue(task_queue *const queue, const task_context task){

654

if((queue->length + 1) > (SIZE_MAX / sizeof(task_context))){

655

/* overflow */

656

error(0, ENOMEM, "Failed to allocate %" PRIuMAX

657

" tasks for queue->tasks", (uintmax_t)(queue->length + 1));

658

errno = ENOMEM;

659

return false;

660

}

661

const size_t needed_size = sizeof(task_context)*(queue->length + 1);

662

if(needed_size > (queue->allocated)){

663

task_context *const new_tasks = realloc(queue->tasks,

664

needed_size);

665

if(new_tasks == NULL){

666

error(0, errno, "Failed to allocate %" PRIuMAX

667

" bytes for queue->tasks", (uintmax_t)needed_size);

668

return false;

669

}

670

queue->tasks = new_tasks;

671

queue->allocated = needed_size;

672

}

673

/* Using memcpy here is necessary because doing */

674

/* queue->tasks[queue->length++] = task; */

675

/* would violate const-ness of task members */

676

memcpy(&(queue->tasks[queue->length++]), &task,

677

sizeof(task_context));

678

return true;

679

}

680

681

__attribute__((nonnull))

682

void cleanup_task(const task_context *const task){

683

const error_t saved_errno = errno;

684

/* free and close all task data */

685

free(task->question_filename);

686

if(task->filename != task->question_filename){

687

free(task->filename);

688

}

689

if(task->pid > 0){

690

kill(task->pid, SIGTERM);

691

}

692

if(task->fd > 0){

693

close(task->fd);

694

}

695

errno = saved_errno;

696

}

697

698

__attribute__((nonnull))

699

void free_queue(task_queue *const queue){

700

free(queue->tasks);

701

free(queue);

702

}

703

704

__attribute__((nonnull))

705

void cleanup_queue(task_queue *const *const queue){

706

if(*queue == NULL){

707

return;

708

}

709

for(size_t i = 0; i < (*queue)->length; i++){

710

const task_context *const task = ((*queue)->tasks)+i;

711

cleanup_task(task);

712

}

713

free_queue(*queue);

714

}

715

716

__attribute__((pure, nonnull, warn_unused_result))

717

bool queue_has_question(const task_queue *const queue){

718

for(size_t i=0; i < queue->length; i++){

719

if(queue->tasks[i].question_filename != NULL){

720

return true;

721

}

722

}

723

return false;

724

}

725

726

__attribute__((nonnull))

727

void cleanup_close(const int *const fd){

728

const error_t saved_errno = errno;

729

close(*fd);

730

errno = saved_errno;

731

}

732

733

__attribute__((nonnull))

734

void cleanup_string(char *const *const ptr){

735

free(*ptr);

736

}

737

738

__attribute__((nonnull))

739

void cleanup_buffer(buffer *buf){

740

if(buf->allocated > 0){

741

#if defined(__GLIBC_PREREQ) and __GLIBC_PREREQ(2, 25)

742

explicit_bzero(buf->data, buf->allocated);

743

#else

744

memset(buf->data, '\0', buf->allocated);

745

#endif

746

}

747

if(buf->data != NULL){

748

if(munlock(buf->data, buf->allocated) != 0){

749

error(0, errno, "Failed to unlock memory of old buffer");

750

}

751

free(buf->data);

752

buf->data = NULL;

753

}

754

buf->length = 0;

755

buf->allocated = 0;

756

}

757

758

__attribute__((pure, nonnull, warn_unused_result))

759

bool string_set_contains(const string_set set, const char *const str){

760

for(const char *s = set.argz; s != NULL and set.argz_len > 0;

761

s = argz_next(set.argz, set.argz_len, s)){

762

if(strcmp(s, str) == 0){

763

return true;

764

}

765

}

766

return false;

767

}

768

769

__attribute__((nonnull, warn_unused_result))

770

bool string_set_add(string_set *const set, const char *const str){

771

if(string_set_contains(*set, str)){

772

return true;

773

}

774

error_t error = argz_add(&set->argz, &set->argz_len, str);

775

if(error == 0){

776

return true;

777

}

778

errno = error;

779

return false;

780

}

781

782

__attribute__((nonnull))

783

void string_set_clear(string_set *set){

784

free(set->argz);

785

set->argz = NULL;

786

set->argz_len = 0;

787

}

788

789

__attribute__((nonnull))

790

void string_set_swap(string_set *const set1, string_set *const set2){

791

/* Swap contents of two string sets */

792

{

793

char *const tmp_argz = set1->argz;

794

set1->argz = set2->argz;

795

set2->argz = tmp_argz;

796

}

797

{

798

const size_t tmp_argz_len = set1->argz_len;

799

set1->argz_len = set2->argz_len;

800

set2->argz_len = tmp_argz_len;

801

}

802

}

803

804

__attribute__((nonnull, warn_unused_result))

805

bool start_mandos_client(task_queue *const queue,

806

const int epoll_fd,

807

bool *const mandos_client_exited,

808

bool *const quit_now, buffer *const password,

809

bool *const password_is_read,

810

const struct sigaction *const

811

old_sigchld_action, const sigset_t sigmask,

812

const char *const helper_directory,

813

const uid_t user, const gid_t group,

814

const char *const *const argv){

815

int pipefds[2];

816

if(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK) != 0){

817

error(0, errno, "Failed to pipe2(..., O_CLOEXEC | O_NONBLOCK)");

818

return false;

819

}

820

821

const pid_t pid = fork();

822

if(pid == 0){

823

if(not restore_signal_handler(old_sigchld_action)){

824

_exit(EXIT_FAILURE);

825

}

826

if(not restore_sigmask(&sigmask)){

827

_exit(EXIT_FAILURE);

828

}

829

if(close(pipefds[0]) != 0){

830

error(0, errno, "Failed to close() parent pipe fd");

831

_exit(EXIT_FAILURE);

832

}

833

if(dup2(pipefds[1], STDOUT_FILENO) == -1){

834

error(0, errno, "Failed to dup2() pipe fd to stdout");

835

_exit(EXIT_FAILURE);

836

}

837

if(close(pipefds[1]) != 0){

838

error(0, errno, "Failed to close() old child pipe fd");

839

_exit(EXIT_FAILURE);

840

}

841

if(setenv("MANDOSPLUGINHELPERDIR", helper_directory, 1) != 0){

842

error(0, errno, "Failed to setenv(\"MANDOSPLUGINHELPERDIR\","

843

" \"%s\", 1)", helper_directory);

844

_exit(EXIT_FAILURE);

845

}

846

if(group != 0 and setresgid(group, 0, 0) == -1){

847

error(0, errno, "Failed to setresgid(-1, %" PRIuMAX ", %"

848

PRIuMAX")", (uintmax_t)group, (uintmax_t)group);

849

_exit(EXIT_FAILURE);

850

}

851

if(user != 0 and setresuid(user, 0, 0) == -1){

852

error(0, errno, "Failed to setresuid(-1, %" PRIuMAX ", %"

853

PRIuMAX")", (uintmax_t)user, (uintmax_t)user);

854

_exit(EXIT_FAILURE);

855

}

856

#ifdef __GNUC__

857

#pragma GCC diagnostic push

858

/* For historical reasons, the "argv" argument to execv() is not

859

const, but it is safe to override this. */

860

#pragma GCC diagnostic ignored "-Wcast-qual"

861

#endif

862

execv(argv[0], (char **)argv);

863

#ifdef __GNUC__

864

#pragma GCC diagnostic pop

865

#endif

866

error(0, errno, "execv(\"%s\", ...) failed", argv[0]);

867

_exit(EXIT_FAILURE);

868

}

869

close(pipefds[1]);

870

871

if(pid == -1){

872

error(0, errno, "Failed to fork()");

873

close(pipefds[0]);

874

return false;

875

}

876

877

if(not add_to_queue(queue, (task_context){

878

.func=wait_for_mandos_client_exit,

879

.pid=pid,

880

.mandos_client_exited=mandos_client_exited,

881

.quit_now=quit_now,

882

})){

883

error(0, errno, "Failed to add wait_for_mandos_client to queue");

884

close(pipefds[0]);

885

return false;

886

}

887

888

const int ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, pipefds[0],

889

&(struct epoll_event)

890

{ .events=EPOLLIN | EPOLLRDHUP });

891

if(ret != 0 and errno != EEXIST){

892

error(0, errno, "Failed to add file descriptor to epoll set");

893

close(pipefds[0]);

894

return false;

895

}

896

897

return add_to_queue(queue, (task_context){

898

.func=read_mandos_client_output,

899

.epoll_fd=epoll_fd,

900

.fd=pipefds[0],

901

.quit_now=quit_now,

902

.password=password,

903

.password_is_read=password_is_read,

904

});

905

}

906

907

__attribute__((nonnull))

908

void wait_for_mandos_client_exit(const task_context task,

909

task_queue *const queue){

910

const pid_t pid = task.pid;

911

bool *const mandos_client_exited = task.mandos_client_exited;

912

bool *const quit_now = task.quit_now;

913

914

int status;

915

switch(waitpid(pid, &status, WNOHANG)){

916

case 0: /* Not exited yet */

917

if(not add_to_queue(queue, task)){

918

error(0, errno, "Failed to add myself to queue");

919

*quit_now = true;

920

}

921

break;

922

case -1: /* Error */

923

error(0, errno, "waitpid(%" PRIdMAX ") failed", (intmax_t)pid);

924

if(errno != ECHILD){

925

kill(pid, SIGTERM);

926

}

927

*quit_now = true;

928

break;

929

default: /* Has exited */

930

*mandos_client_exited = true;

931

if((not WIFEXITED(status))

932

or (WEXITSTATUS(status) != EXIT_SUCCESS)){

933

error(0, 0, "Mandos client failed or was killed");

934

*quit_now = true;

935

}

936

}

937

}

938

939

__attribute__((nonnull))

940

void read_mandos_client_output(const task_context task,

941

task_queue *const queue){

942

buffer *const password = task.password;

943

bool *const quit_now = task.quit_now;

944

bool *const password_is_read = task.password_is_read;

945

const int fd = task.fd;

946

const int epoll_fd = task.epoll_fd;

947

948

const size_t new_potential_size = (password->length + PIPE_BUF);

949

if(password->allocated < new_potential_size){

950

char *const new_buffer = calloc(new_potential_size, 1);

951

if(new_buffer == NULL){

952

error(0, errno, "Failed to allocate %" PRIuMAX

953

" bytes for password", (uintmax_t)new_potential_size);

954

*quit_now = true;

955

close(fd);

956

return;

957

}

958

if(mlock(new_buffer, new_potential_size) != 0){

959

/* Warn but do not treat as fatal error */

960

if(errno != EPERM and errno != ENOMEM){

961

error(0, errno, "Failed to lock memory for password");

962

}

963

}

964

if(password->length > 0){

965

memcpy(new_buffer, password->data, password->length);

966

#if defined(__GLIBC_PREREQ) and __GLIBC_PREREQ(2, 25)

967

explicit_bzero(password->data, password->allocated);

968

#else

969

memset(password->data, '\0', password->allocated);

970

#endif

971

}

972

if(password->data != NULL){

973

if(munlock(password->data, password->allocated) != 0){

974

error(0, errno, "Failed to unlock memory of old buffer");

975

}

976

free(password->data);

977

}

978

password->data = new_buffer;

979

password->allocated = new_potential_size;

980

}

981

982

const ssize_t read_length = read(fd, password->data

983

+ password->length, PIPE_BUF);

984

985

if(read_length == 0){ /* EOF */

986

*password_is_read = true;

987

close(fd);

988

return;

989

}

990

if(read_length < 0 and errno != EAGAIN){ /* Actual error */

991

error(0, errno, "Failed to read password from Mandos client");

992

*quit_now = true;

993

close(fd);

994

return;

995

}

996

if(read_length > 0){ /* Data has been read */

997

password->length += (size_t)read_length;

998

}

999

1000

/* Either data was read, or EAGAIN was indicated, meaning no data

1001

available yet */

1002

1003

/* Re-add the fd to the epoll set */

1004

const int ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd,

1005

&(struct epoll_event)

1006

{ .events=EPOLLIN | EPOLLRDHUP });

1007

if(ret != 0 and errno != EEXIST){

1008

error(0, errno, "Failed to re-add file descriptor to epoll set");

1009

*quit_now = true;

1010

close(fd);

1011

return;

1012

}

1013

1014

/* Re-add myself to the queue */

1015

if(not add_to_queue(queue, task)){

1016

error(0, errno, "Failed to add myself to queue");

1017

*quit_now = true;

1018

close(fd);

1019

}

1020

}

1021

1022

__attribute__((nonnull, warn_unused_result))

1023

bool add_inotify_dir_watch(task_queue *const queue,

1024

const int epoll_fd, bool *const quit_now,

1025

buffer *const password,

1026

const char *const dir,

1027

string_set *cancelled_filenames,

1028

const mono_microsecs *const current_time,

1029

bool *const mandos_client_exited,

1030

bool *const password_is_read){

1031

const int fd = inotify_init1(IN_NONBLOCK | IN_CLOEXEC);

1032

if(fd == -1){

1033

error(0, errno, "Failed to create inotify instance");

1034

return false;

1035

}

1036

1037

if(inotify_add_watch(fd, dir, IN_CLOSE_WRITE | IN_MOVED_TO

1038

| IN_MOVED_FROM| IN_DELETE | IN_EXCL_UNLINK

1039

| IN_ONLYDIR)

1040

== -1){

1041

error(0, errno, "Failed to create inotify watch on %s", dir);

1042

return false;

1043

}

1044

1045

/* Add the inotify fd to the epoll set */

1046

const int ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd,

1047

&(struct epoll_event)

1048

{ .events=EPOLLIN | EPOLLRDHUP });

1049

if(ret != 0 and errno != EEXIST){

1050

error(0, errno, "Failed to add file descriptor to epoll set");

1051

close(fd);

1052

return false;

1053

}

1054

1055

const task_context read_inotify_event_task = {

1056

.func=read_inotify_event,

1057

.epoll_fd=epoll_fd,

1058

.quit_now=quit_now,

1059

.password=password,

1060

.fd=fd,

1061

.filename=strdup(dir),

1062

.cancelled_filenames=cancelled_filenames,

1063

.current_time=current_time,

1064

.mandos_client_exited=mandos_client_exited,

1065

.password_is_read=password_is_read,

1066

};

1067

if(read_inotify_event_task.filename == NULL){

1068

error(0, errno, "Failed to strdup(\"%s\")", dir);

1069

close(fd);

1070

return false;

1071

}

1072

1073

return add_to_queue(queue, read_inotify_event_task);

1074

}

1075

1076

__attribute__((nonnull))

1077

void read_inotify_event(const task_context task,

1078

task_queue *const queue){

1079

const int fd = task.fd;

1080

const int epoll_fd = task.epoll_fd;

1081

char *const filename = task.filename;

1082

bool *quit_now = task.quit_now;

1083

buffer *const password = task.password;

1084

string_set *const cancelled_filenames = task.cancelled_filenames;

1085

const mono_microsecs *const current_time = task.current_time;

1086

bool *const mandos_client_exited = task.mandos_client_exited;

1087

bool *const password_is_read = task.password_is_read;

1088

1089

/* "sufficient to read at least one event." - inotify(7) */

1090

const size_t ievent_size = (sizeof(struct inotify_event)

1091

+ NAME_MAX + 1);

1092

struct {

1093

struct inotify_event event;

1094

char name_buffer[NAME_MAX + 1];

1095

} ievent_buffer;

1096

struct inotify_event *const ievent = &ievent_buffer.event;

1097

1098

const ssize_t read_length = read(fd, ievent, ievent_size);

1099

if(read_length == 0){ /* EOF */

1100

error(0, 0, "Got EOF from inotify fd for directory %s", filename);

1101

*quit_now = true;

1102

cleanup_task(&task);

1103

return;

1104

}

1105

if(read_length < 0 and errno != EAGAIN){ /* Actual error */

1106

error(0, errno, "Failed to read from inotify fd for directory %s",

1107

filename);

1108

*quit_now = true;

1109

cleanup_task(&task);

1110

return;

1111

}

1112

if(read_length > 0 /* Data has been read */

1113

and fnmatch("ask.*", ievent->name, FNM_FILE_NAME) == 0){

1114

char *question_filename = NULL;

1115

const ssize_t question_filename_length

1116

= asprintf(&question_filename, "%s/%s", filename, ievent->name);

1117

if(question_filename_length < 0){

1118

error(0, errno, "Failed to create file name from directory name"

1119

" %s and file name %s", filename, ievent->name);

1120

} else {

1121

if(ievent->mask & (IN_CLOSE_WRITE | IN_MOVED_TO)){

1122

if(not add_to_queue(queue, (task_context){

1123

.func=open_and_parse_question,

1124

.epoll_fd=epoll_fd,

1125

.question_filename=question_filename,

1126

.filename=question_filename,

1127

.password=password,

1128

.cancelled_filenames=cancelled_filenames,

1129

.current_time=current_time,

1130

.mandos_client_exited=mandos_client_exited,

1131

.password_is_read=password_is_read,

1132

})){

1133

error(0, errno, "Failed to add open_and_parse_question task"

1134

" for file name %s to queue", filename);

1135

} else {

1136

/* Force the added task (open_and_parse_question) to run

1137

immediately */

1138

queue->next_run = 1;

1139

}

1140

} else if(ievent->mask & (IN_MOVED_FROM | IN_DELETE)){

1141

if(not string_set_add(cancelled_filenames,

1142

question_filename)){

1143

error(0, errno, "Could not add question %s to"

1144

" cancelled_questions", question_filename);

1145

*quit_now = true;

1146

free(question_filename);

1147

cleanup_task(&task);

1148

return;

1149

}

1150

free(question_filename);

1151

}

1152

}

1153

}

1154

1155

/* Either data was read, or EAGAIN was indicated, meaning no data

1156

available yet */

1157

1158

/* Re-add myself to the queue */

1159

if(not add_to_queue(queue, task)){

1160

error(0, errno, "Failed to re-add read_inotify_event(%s) to"

1161

" queue", filename);

1162

*quit_now = true;

1163

cleanup_task(&task);

1164

return;

1165

}

1166

1167

/* Re-add the fd to the epoll set */

1168

const int ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd,

1169

&(struct epoll_event)

1170

{ .events=EPOLLIN | EPOLLRDHUP });

1171

if(ret != 0 and errno != EEXIST){

1172

error(0, errno, "Failed to re-add inotify file descriptor %d for"

1173

" directory %s to epoll set", fd, filename);

1174

/* Force the added task (read_inotify_event) to run again, at most

1175

one second from now */

1176

if((queue->next_run == 0)

1177

or (queue->next_run > (*current_time + 1000000))){

1178

queue->next_run = *current_time + 1000000;

1179

}

1180

}

1181

}

1182

1183

__attribute__((nonnull))

1184

void open_and_parse_question(const task_context task,

1185

task_queue *const queue){

1186

__attribute__((cleanup(cleanup_string)))

1187

char *question_filename = task.question_filename;

1188

const int epoll_fd = task.epoll_fd;

1189

buffer *const password = task.password;

1190

string_set *const cancelled_filenames = task.cancelled_filenames;

1191

const mono_microsecs *const current_time = task.current_time;

1192

bool *const mandos_client_exited = task.mandos_client_exited;

1193

bool *const password_is_read = task.password_is_read;

1194

1195

/* We use the GLib "Key-value file parser" functions to parse the

1196

question file. See <https://www.freedesktop.org/wiki/Software

1197

/systemd/PasswordAgents/> for specification of contents */

1198

__attribute__((nonnull))

1199

void cleanup_g_key_file(GKeyFile **key_file){

1200

if(*key_file != NULL){

1201

g_key_file_free(*key_file);

1202

}

1203

}

1204

1205

__attribute__((cleanup(cleanup_g_key_file)))

1206

GKeyFile *key_file = g_key_file_new();

1207

if(key_file == NULL){

1208

error(0, errno, "Failed g_key_file_new() for \"%s\"",

1209

question_filename);

1210

return;

1211

}

1212

GError *glib_error = NULL;

1213

if(g_key_file_load_from_file(key_file, question_filename,

1214

G_KEY_FILE_NONE, &glib_error) != TRUE){

1215

/* If a file was removed, we should ignore it, so */

1216

/* only show error message if file actually existed */

1217

if(glib_error->code != G_FILE_ERROR_NOENT){

1218

error(0, 0, "Failed to load question data from file \"%s\": %s",

1219

question_filename, glib_error->message);

1220

}

1221

return;

1222

}

1223

1224

__attribute__((cleanup(cleanup_string)))

1225

char *socket_name = g_key_file_get_string(key_file, "Ask",

1226

"Socket",

1227

&glib_error);

1228

if(socket_name == NULL){

1229

error(0, 0, "Question file \"%s\" did not contain \"Socket\": %s",

1230

question_filename, glib_error->message);

1231

return;

1232

}

1233

1234

if(strlen(socket_name) == 0){

1235

error(0, 0, "Question file \"%s\" had empty \"Socket\" value",

1236

question_filename);

1237

return;

1238

}

1239

1240

const guint64 pid = g_key_file_get_uint64(key_file, "Ask", "PID",

1241

&glib_error);

1242

if(glib_error != NULL){

1243

error(0, 0, "Question file \"%s\" contained bad \"PID\": %s",

1244

question_filename, glib_error->message);

1245

return;

1246

}

1247

1248

if((pid != (guint64)((pid_t)pid))

1249

or (kill((pid_t)pid, 0) != 0)){

1250

error(0, 0, "PID %" PRIuMAX " in question file \"%s\" is bad or"

1251

" does not exist", (uintmax_t)pid, question_filename);

1252

return;

1253

}

1254

1255

guint64 notafter = g_key_file_get_uint64(key_file, "Ask",

1256

"NotAfter", &glib_error);

1257

if(glib_error != NULL){

1258

if(glib_error->code != G_KEY_FILE_ERROR_KEY_NOT_FOUND){

1259

error(0, 0, "Question file \"%s\" contained bad \"NotAfter\":"

1260

" %s", question_filename, glib_error->message);

1261

}

1262

notafter = 0;

1263

}

1264

if(notafter != 0){

1265

if(queue->next_run == 0 or (queue->next_run > notafter)){

1266

queue->next_run = notafter;

1267

}

1268

if(*current_time >= notafter){

1269

return;

1270

}

1271

}

1272

1273

const task_context connect_question_socket_task = {

1274

.func=connect_question_socket,

1275

.question_filename=strdup(question_filename),

1276

.epoll_fd=epoll_fd,

1277

.password=password,

1278

.filename=strdup(socket_name),

1279

.cancelled_filenames=task.cancelled_filenames,

1280

.mandos_client_exited=mandos_client_exited,

1281

.password_is_read=password_is_read,

1282

.current_time=current_time,

1283

};

1284

if(connect_question_socket_task.question_filename == NULL

1285

or connect_question_socket_task.filename == NULL

1286

or not add_to_queue(queue, connect_question_socket_task)){

1287

error(0, errno, "Failed to add connect_question_socket for socket"

1288

" %s (from \"%s\") to queue", socket_name,

1289

question_filename);

1290

cleanup_task(&connect_question_socket_task);

1291

return;

1292

}

1293

/* Force the added task (connect_question_socket) to run

1294

immediately */

1295

queue->next_run = 1;

1296

1297

if(notafter > 0){

1298

char *const dup_filename = strdup(question_filename);

1299

const task_context cancel_old_question_task = {

1300

.func=cancel_old_question,

1301

.question_filename=dup_filename,

1302

.notafter=notafter,

1303

.filename=dup_filename,

1304

.cancelled_filenames=cancelled_filenames,

1305

.current_time=current_time,

1306

};

1307

if(cancel_old_question_task.question_filename == NULL

1308

or not add_to_queue(queue, cancel_old_question_task)){

1309

error(0, errno, "Failed to add cancel_old_question for file "

1310

"\"%s\" to queue", question_filename);

1311

cleanup_task(&cancel_old_question_task);

1312

return;

1313

}

1314

}

1315

}

1316

1317

__attribute__((nonnull))

1318

void cancel_old_question(const task_context task,

1319

task_queue *const queue){

1320

char *const question_filename = task.question_filename;

1321

string_set *const cancelled_filenames = task.cancelled_filenames;

1322

const mono_microsecs notafter = task.notafter;

1323

const mono_microsecs *const current_time = task.current_time;

1324

1325

if(*current_time >= notafter){

1326

if(not string_set_add(cancelled_filenames, question_filename)){

1327

error(0, errno, "Failed to cancel question for file %s",

1328

question_filename);

1329

}

1330

cleanup_task(&task);

1331

return;

1332

}

1333

1334

if(not add_to_queue(queue, task)){

1335

error(0, errno, "Failed to add cancel_old_question for file "

1336

"%s to queue", question_filename);

1337

cleanup_task(&task);

1338

return;

1339

}

1340

1341

if((queue->next_run == 0) or (queue->next_run > notafter)){

1342

queue->next_run = notafter;

1343

}

1344

}

1345

1346

__attribute__((nonnull))

1347

void connect_question_socket(const task_context task,

1348

task_queue *const queue){

1349

char *const question_filename = task.question_filename;

1350

char *const filename = task.filename;

1351

const int epoll_fd = task.epoll_fd;

1352

buffer *const password = task.password;

1353

string_set *const cancelled_filenames = task.cancelled_filenames;

1354

bool *const mandos_client_exited = task.mandos_client_exited;

1355

bool *const password_is_read = task.password_is_read;

1356

const mono_microsecs *const current_time = task.current_time;

1357

1358

struct sockaddr_un sock_name = { .sun_family=AF_LOCAL };

1359

1360

if(sizeof(sock_name.sun_path) <= strlen(filename)){

1361

error(0, 0, "Socket filename is larger than"

1362

" sizeof(sockaddr_un.sun_path); %" PRIuMAX ": \"%s\"",

1363

(uintmax_t)sizeof(sock_name.sun_path), filename);

1364

if(not string_set_add(cancelled_filenames, question_filename)){

1365

error(0, errno, "Failed to cancel question for file %s",

1366

question_filename);

1367

}

1368

cleanup_task(&task);

1369

return;

1370

}

1371

1372

const int fd = socket(PF_LOCAL, SOCK_DGRAM

1373

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0);

1374

if(fd < 0){

1375

error(0, errno,

1376

"Failed to create socket(PF_LOCAL, SOCK_DGRAM, 0)");

1377

if(not add_to_queue(queue, task)){

1378

error(0, errno, "Failed to add connect_question_socket for file"

1379

" \"%s\" and socket \"%s\" to queue", question_filename,

1380

filename);

1381

cleanup_task(&task);

1382

} else {

1383

/* Force the added task (connect_question_socket) to run

1384

immediately */

1385

queue->next_run = 1;

1386

}

1387

return;

1388

}

1389

1390

strncpy(sock_name.sun_path, filename, sizeof(sock_name.sun_path));

1391

if(connect(fd, (struct sockaddr *)&sock_name,

1392

(socklen_t)SUN_LEN(&sock_name)) != 0){

1393

error(0, errno, "Failed to connect socket to \"%s\"", filename);

1394

if(not add_to_queue(queue, task)){

1395

error(0, errno, "Failed to add connect_question_socket for file"

1396

" \"%s\" and socket \"%s\" to queue", question_filename,

1397

filename);

1398

cleanup_task(&task);

1399

} else {

1400

/* Force the added task (connect_question_socket) to run again,

1401

at most one second from now */

1402

if((queue->next_run == 0)

1403

or (queue->next_run > (*current_time + 1000000))){

1404

queue->next_run = *current_time + 1000000;

1405

}

1406

}

1407

return;

1408

}

1409

1410

/* Not necessary, but we can try, and merely warn on failure */

1411

if(shutdown(fd, SHUT_RD) != 0){

1412

error(0, errno, "Failed to shutdown reading from socket \"%s\"",

1413

filename);

1414

}

1415

1416

/* Add the fd to the epoll set */

1417

if(epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd,

1418

&(struct epoll_event){ .events=EPOLLOUT })

1419

!= 0){

1420

error(0, errno, "Failed to add inotify file descriptor %d for"

1421

" socket %s to epoll set", fd, filename);

1422

if(not add_to_queue(queue, task)){

1423

error(0, errno, "Failed to add connect_question_socket for file"

1424

" \"%s\" and socket \"%s\" to queue", question_filename,

1425

filename);

1426

cleanup_task(&task);

1427

} else {

1428

/* Force the added task (connect_question_socket) to run again,

1429

at most one second from now */

1430

if((queue->next_run == 0)

1431

or (queue->next_run > (*current_time + 1000000))){

1432

queue->next_run = *current_time + 1000000;

1433

}

1434

}

1435

return;

1436

}

1437

1438

/* add task send_password_to_socket to queue */

1439

const task_context send_password_to_socket_task = {

1440

.func=send_password_to_socket,

1441

.question_filename=question_filename,

1442

.filename=filename,

1443

.epoll_fd=epoll_fd,

1444

.fd=fd,

1445

.password=password,

1446

.cancelled_filenames=cancelled_filenames,

1447

.mandos_client_exited=mandos_client_exited,

1448

.password_is_read=password_is_read,

1449

.current_time=current_time,

1450

};

1451

1452

if(not add_to_queue(queue, send_password_to_socket_task)){

1453

error(0, errno, "Failed to add send_password_to_socket for"

1454

" file \"%s\" and socket \"%s\" to queue",

1455

question_filename, filename);

1456

cleanup_task(&send_password_to_socket_task);

1457

}

1458

}

1459

1460

__attribute__((nonnull))

1461

void send_password_to_socket(const task_context task,

1462

task_queue *const queue){

1463

char *const question_filename=task.question_filename;

1464

char *const filename=task.filename;

1465

const int epoll_fd=task.epoll_fd;

1466

const int fd=task.fd;

1467

buffer *const password=task.password;

1468

string_set *const cancelled_filenames=task.cancelled_filenames;

1469

bool *const mandos_client_exited = task.mandos_client_exited;

1470

bool *const password_is_read = task.password_is_read;

1471

const mono_microsecs *const current_time = task.current_time;

1472

1473

if(*mandos_client_exited and *password_is_read){

1474

1475

const size_t send_buffer_length = password->length + 2;

1476

char *send_buffer = malloc(send_buffer_length);

1477

if(send_buffer == NULL){

1478

error(0, errno, "Failed to allocate send_buffer");

1479

} else {

1480

if(mlock(send_buffer, send_buffer_length) != 0){

1481

/* Warn but do not treat as fatal error */

1482

if(errno != EPERM and errno != ENOMEM){

1483

error(0, errno, "Failed to lock memory for password"

1484

" buffer");

1485

}

1486

}

1487

/* “[…] send a single datagram to the socket consisting of the

1488

password string either prefixed with "+" or with "-"

1489

depending on whether the password entry was successful or

1490

not. You may but don't have to include a final NUL byte in

1491

your message.

1492

1493

— <https://www.freedesktop.org/wiki/Software/systemd/

1494

PasswordAgents/> (Wed 08 Oct 2014 02:14:28 AM UTC)

1495

*/

1496

send_buffer[0] = '+'; /* Prefix with "+" */

1497

/* Always add an extra NUL */

1498

send_buffer[password->length + 1] = '\0';

1499

if(password->length > 0){

1500

memcpy(send_buffer + 1, password->data, password->length);

1501

}

1502

errno = 0;

1503

ssize_t ssret = send(fd, send_buffer, send_buffer_length,

1504

MSG_NOSIGNAL);

1505

const error_t saved_errno = errno;

1506

#if defined(__GLIBC_PREREQ) and __GLIBC_PREREQ(2, 25)

1507

explicit_bzero(send_buffer, send_buffer_length);

1508

#else

1509

memset(send_buffer, '\0', send_buffer_length);

1510

#endif

1511

if(munlock(send_buffer, send_buffer_length) != 0){

1512

error(0, errno, "Failed to unlock memory of send buffer");

1513

}

1514

free(send_buffer);

1515

if(ssret < 0 or ssret < (ssize_t)send_buffer_length){

1516

switch(saved_errno){

1517

case EINTR:

1518

case ENOBUFS:

1519

case ENOMEM:

1520

case EADDRINUSE:

1521

case ECONNREFUSED:

1522

case ECONNRESET:

1523

case ENOENT:

1524

case ETOOMANYREFS:

1525

case EAGAIN:

1526

/* Retry, below */

1527

break;

1528

case EMSGSIZE:

1529

error(0, 0, "Password of size %" PRIuMAX " is too big",

1530

(uintmax_t)password->length);

1531

#if __GNUC__ < 7

1532

/* FALLTHROUGH */

1533

#else

1534

__attribute__((fallthrough));

1535

#endif

1536

case 0:

1537

if(ssret >= 0 and ssret < (ssize_t)send_buffer_length){

1538

error(0, 0, "Password only partially sent to socket");

1539

}

1540

#if __GNUC__ < 7

1541

/* FALLTHROUGH */

1542

#else

1543

__attribute__((fallthrough));

1544

#endif

1545

default:

1546

error(0, saved_errno, "Failed to send() to socket %s",

1547

filename);

1548

if(not string_set_add(cancelled_filenames,

1549

question_filename)){

1550

error(0, errno, "Failed to cancel question for file %s",

1551

question_filename);

1552

}

1553

cleanup_task(&task);

1554

return;

1555

}

1556

} else {

1557

/* Success */

1558

cleanup_task(&task);

1559

return;

1560

}

1561

}

1562

}

1563

1564

/* We failed or are not ready yet; retry later */

1565

1566

if(not add_to_queue(queue, task)){

1567

error(0, errno, "Failed to add send_password_to_socket for"

1568

" file %s and socket %s to queue", question_filename,

1569

filename);

1570

cleanup_task(&task);

1571

}

1572

1573

/* Add the fd to the epoll set */

1574

if(epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd,

1575

&(struct epoll_event){ .events=EPOLLOUT })

1576

!= 0){

1577

error(0, errno, "Failed to add socket file descriptor %d for"

1578

" socket %s to epoll set", fd, filename);

1579

/* Force the added task (send_password_to_socket) to run again, at

1580

most one second from now */

1581

if((queue->next_run == 0)

1582

or (queue->next_run > (*current_time + 1000000))){

1583

queue->next_run = *current_time + 1000000;

1584

}

1585

}

1586

}

1587

1588

__attribute__((warn_unused_result))

1589

bool add_existing_questions(task_queue *const queue,

1590

const int epoll_fd,

1591

buffer *const password,

1592

string_set *cancelled_filenames,

1593

const mono_microsecs *const current_time,

1594

bool *const mandos_client_exited,

1595

bool *const password_is_read,

1596

const char *const dirname){

1597

__attribute__((cleanup(cleanup_string)))

1598

char *dir_pattern = NULL;

1599

const int ret = asprintf(&dir_pattern, "%s/ask.*", dirname);

1600

if(ret < 0 or dir_pattern == NULL){

1601

error(0, errno, "Could not create glob pattern for directory %s",

1602

dirname);

1603

return false;

1604

}

1605

__attribute__((cleanup(globfree)))

1606

glob_t question_filenames = {};

1607

switch(glob(dir_pattern, GLOB_ERR | GLOB_NOSORT | GLOB_MARK,

1608

NULL, &question_filenames)){

1609

case GLOB_ABORTED:

1610

default:

1611

error(0, errno, "Failed to open directory %s", dirname);

1612

return false;

1613

case GLOB_NOMATCH:

1614

error(0, errno, "There are no question files in %s", dirname);

1615

return false;

1616

case GLOB_NOSPACE:

1617

error(0, errno, "Could not allocate memory for question file"

1618

" names in %s", dirname);

1619

#if __GNUC__ < 7

1620

/* FALLTHROUGH */

1621

#else

1622

__attribute__((fallthrough));

1623

#endif

1624

case 0:

1625

for(size_t i = 0; i < question_filenames.gl_pathc; i++){

1626

char *const question_filename = strdup(question_filenames

1627

.gl_pathv[i]);

1628

const task_context task = {

1629

.func=open_and_parse_question,

1630

.epoll_fd=epoll_fd,

1631

.question_filename=question_filename,

1632

.filename=question_filename,

1633

.password=password,

1634

.cancelled_filenames=cancelled_filenames,

1635

.current_time=current_time,

1636

.mandos_client_exited=mandos_client_exited,

1637

.password_is_read=password_is_read,

1638

};

1639

1640

if(question_filename == NULL

1641

or not add_to_queue(queue, task)){

1642

error(0, errno, "Failed to add open_and_parse_question for"

1643

" file %s to queue",

1644

question_filenames.gl_pathv[i]);

1645

free(question_filename);

1646

} else {

1647

queue->next_run = 1;

1648

}

1649

}

1650

return true;

1651

}

1652

}

1653

1654

__attribute__((nonnull, warn_unused_result))

1655

bool wait_for_event(const int epoll_fd,

1656

const mono_microsecs queue_next_run,

1657

const mono_microsecs current_time){

1658

__attribute__((const))

1659

int milliseconds_to_wait(const mono_microsecs currtime,

1660

const mono_microsecs nextrun){

1661

if(currtime >= nextrun){

1662

return 0;

1663

}

1664

const uintmax_t wait_time_ms = (nextrun - currtime) / 1000;

1665

if(wait_time_ms > (uintmax_t)INT_MAX){

1666

return INT_MAX;

1667

}

1668

return (int)wait_time_ms;

1669

}

1670

1671

const int wait_time_ms = milliseconds_to_wait(current_time,

1672

queue_next_run);

1673

1674

/* Prepare unblocking of SIGCHLD during epoll_pwait */

1675

sigset_t temporary_unblocked_sigmask;

1676

/* Get current signal mask */

1677

if(pthread_sigmask(-1, NULL, &temporary_unblocked_sigmask) != 0){

1678

return false;

1679

}

1680

/* Remove SIGCHLD from the signal mask */

1681

if(sigdelset(&temporary_unblocked_sigmask, SIGCHLD) != 0){

1682

return false;

1683

}

1684

struct epoll_event events[8]; /* Ignored */

1685

int ret = epoll_pwait(epoll_fd, events,

1686

sizeof(events) / sizeof(struct epoll_event),

1687

queue_next_run == 0 ? -1 : (int)wait_time_ms,

1688

&temporary_unblocked_sigmask);

1689

if(ret < 0 and errno != EINTR){

1690

error(0, errno, "Failed epoll_pwait(epfd=%d, ..., timeout=%d,"

1691

" ...", epoll_fd,

1692

queue_next_run == 0 ? -1 : (int)wait_time_ms);

1693

return false;

1694

}

1695

return clear_all_fds_from_epoll_set(epoll_fd);

1696

}

1697

1698

bool clear_all_fds_from_epoll_set(const int epoll_fd){

1699

/* Create a new empty epoll set */

1700

__attribute__((cleanup(cleanup_close)))

1701

const int new_epoll_fd = epoll_create1(EPOLL_CLOEXEC);

1702

if(new_epoll_fd < 0){

1703

return false;

1704

}

1705

/* dup3() the new epoll set fd over the old one, replacing it */

1706

if(dup3(new_epoll_fd, epoll_fd, O_CLOEXEC) < 0){

1707

return false;

1708

}

1709

return true;

1710

}

1711

1712

__attribute__((nonnull, warn_unused_result))

1713

bool run_queue(task_queue **const queue,

1714

string_set *const cancelled_filenames,

1715

bool *const quit_now){

1716

1717

task_queue *new_queue = create_queue();

1718

if(new_queue == NULL){

1719

return false;

1720

}

1721

1722

__attribute__((cleanup(string_set_clear)))

1723

string_set old_cancelled_filenames = {};

1724

string_set_swap(cancelled_filenames, &old_cancelled_filenames);

1725

1726

/* Declare i outside the for loop, since we might need i after the

1727

loop in case we aborted in the middle */

1728

size_t i;

1729

for(i=0; i < (*queue)->length and not *quit_now; i++){

1730

task_context *const task = &((*queue)->tasks[i]);

1731

const char *const question_filename = task->question_filename;

1732

/* Skip any task referencing a cancelled question filename */

1733

if(question_filename != NULL

1734

and string_set_contains(old_cancelled_filenames,

1735

question_filename)){

1736

cleanup_task(task);

1737

continue;

1738

}

1739

task->func(*task, new_queue);

1740

}

1741

1742

if(*quit_now){

1743

/* we might be in the middle of the queue, so clean up any

1744

remaining tasks in the current queue */

1745

for(; i < (*queue)->length; i++){

1746

cleanup_task(&((*queue)->tasks[i]));

1747

}

1748

free_queue(*queue);

1749

*queue = new_queue;

1750

new_queue = NULL;

1751

return false;

1752

}

1753

free_queue(*queue);

1754

*queue = new_queue;

1755

new_queue = NULL;

1756

1757

return true;

1758

}

1759

1760

/* End of regular code section */

1761

1762

/* Start of tests section; here are the tests for the above code */

1763

1764

/* This "fixture" data structure is used by the test setup and

1765

teardown functions */

1766

typedef struct {

1767

struct sigaction orig_sigaction;

1768

sigset_t orig_sigmask;

1769

} test_fixture;

1770

1771

static void test_setup(test_fixture *fixture,

1772

__attribute__((unused))

1773

gconstpointer user_data){

1774

g_assert_true(setup_signal_handler(&fixture->orig_sigaction));

1775

g_assert_true(block_sigchld(&fixture->orig_sigmask));

1776

}

1777

1778

static void test_teardown(test_fixture *fixture,

1779

__attribute__((unused))

1780

gconstpointer user_data){

1781

g_assert_true(restore_signal_handler(&fixture->orig_sigaction));

1782

g_assert_true(restore_sigmask(&fixture->orig_sigmask));

1783

}

1784

1785

/* Utility function used by tests to search queue for matching task */

1786

__attribute__((pure, nonnull, warn_unused_result))

1787

static task_context *find_matching_task(const task_queue *const queue,

1788

const task_context task){

1789

/* The argument "task" structure is a pattern to match; 0 in any

1790

member means any value matches, otherwise the value must match.

1791

The filename strings are compared by strcmp(), not by pointer. */

1792

for(size_t i = 0; i < queue->length; i++){

1793

task_context *const current_task = queue->tasks+i;

1794

/* Check all members of task_context, if set to a non-zero value.

1795

If a member does not match, continue to next task in queue */

1796

1797

/* task_func *const func */

1798

if(task.func != NULL and current_task->func != task.func){

1799

continue;

1800

}

1801

/* char *const question_filename; */

1802

if(task.question_filename != NULL

1803

and (current_task->question_filename == NULL

1804

or strcmp(current_task->question_filename,

1805

task.question_filename) != 0)){

1806

continue;

1807

}

1808

/* const pid_t pid; */

1809

if(task.pid != 0 and current_task->pid != task.pid){

1810

continue;

1811

}

1812

/* const int epoll_fd; */

1813

if(task.epoll_fd != 0

1814

and current_task->epoll_fd != task.epoll_fd){

1815

continue;

1816

}

1817

/* bool *const quit_now; */

1818

if(task.quit_now != NULL

1819

and current_task->quit_now != task.quit_now){

1820

continue;

1821

}

1822

/* const int fd; */

1823

if(task.fd != 0 and current_task->fd != task.fd){

1824

continue;

1825

}

1826

/* bool *const mandos_client_exited; */

1827

if(task.mandos_client_exited != NULL

1828

and current_task->mandos_client_exited

1829

!= task.mandos_client_exited){

1830

continue;

1831

}

1832

/* buffer *const password; */

1833

if(task.password != NULL

1834

and current_task->password != task.password){

1835

continue;

1836

}

1837

/* bool *const password_is_read; */

1838

if(task.password_is_read != NULL

1839

and current_task->password_is_read != task.password_is_read){

1840

continue;

1841

}

1842

/* char *filename; */

1843

if(task.filename != NULL

1844

and (current_task->filename == NULL

1845

or strcmp(current_task->filename, task.filename) != 0)){

1846

continue;

1847

}

1848

/* string_set *const cancelled_filenames; */

1849

if(task.cancelled_filenames != NULL

1850

and current_task->cancelled_filenames

1851

!= task.cancelled_filenames){

1852

continue;

1853

}

1854

/* const mono_microsecs notafter; */

1855

if(task.notafter != 0

1856

and current_task->notafter != task.notafter){

1857

continue;

1858

}

1859

/* const mono_microsecs *const current_time; */

1860

if(task.current_time != NULL

1861

and current_task->current_time != task.current_time){

1862

continue;

1863

}

1864

/* Current task matches all members; return it */

1865

return current_task;

1866

}

1867

/* No task in queue matches passed pattern task */

1868

return NULL;

1869

}

1870

1871

static void test_create_queue(__attribute__((unused))

1872

test_fixture *fixture,

1873

__attribute__((unused))

1874

gconstpointer user_data){

1875

__attribute__((cleanup(cleanup_queue)))

1876

task_queue *const queue = create_queue();

1877

g_assert_nonnull(queue);

1878

g_assert_null(queue->tasks);

1879

g_assert_true(queue->length == 0);

1880

g_assert_true(queue->next_run == 0);

1881

}

1882

1883

static task_func dummy_func;

1884

1885

static void test_add_to_queue(__attribute__((unused))

1886

test_fixture *fixture,

1887

__attribute__((unused))

1888

gconstpointer user_data){

1889

__attribute__((cleanup(cleanup_queue)))

1890

task_queue *queue = create_queue();

1891

g_assert_nonnull(queue);

1892

1893

g_assert_true(add_to_queue(queue,

1894

(task_context){ .func=dummy_func }));

1895

g_assert_true(queue->length == 1);

1896

g_assert_nonnull(queue->tasks);

1897

g_assert_true(queue->tasks[0].func == dummy_func);

1898

}

1899

1900

static void test_add_to_queue_overflow(__attribute__((unused))

1901

test_fixture *fixture,

1902

__attribute__((unused))

1903

gconstpointer user_data){

1904

__attribute__((cleanup(cleanup_queue)))

1905

task_queue *queue = create_queue();

1906

g_assert_nonnull(queue);

1907

g_assert_true(queue->length == 0);

1908

queue->length = SIZE_MAX / sizeof(task_context); /* fake max size */

1909

1910

FILE *real_stderr = stderr;

1911

FILE *devnull = fopen("/dev/null", "we");

1912

g_assert_nonnull(devnull);

1913

stderr = devnull;

1914

const bool ret = add_to_queue(queue,

1915

(task_context){ .func=dummy_func });

1916

g_assert_true(errno == ENOMEM);

1917

g_assert_false(ret);

1918

stderr = real_stderr;

1919

g_assert_cmpint(fclose(devnull), ==, 0);

1920

queue->length = 0; /* Restore real size */

1921

}

1922

1923

static void dummy_func(__attribute__((unused))

1924

const task_context task,

1925

__attribute__((unused))

1926

task_queue *const queue){

1927

}

1928

1929

static void test_queue_has_question_empty(__attribute__((unused))

1930

test_fixture *fixture,

1931

__attribute__((unused))

1932

gconstpointer user_data){

1933

__attribute__((cleanup(cleanup_queue)))

1934

task_queue *queue = create_queue();

1935

g_assert_nonnull(queue);

1936

g_assert_false(queue_has_question(queue));

1937

}

1938

1939

static void test_queue_has_question_false(__attribute__((unused))

1940

test_fixture *fixture,

1941

__attribute__((unused))

1942

gconstpointer user_data){

1943

__attribute__((cleanup(cleanup_queue)))

1944

task_queue *queue = create_queue();

1945

g_assert_nonnull(queue);

1946

g_assert_true(add_to_queue(queue,

1947

(task_context){ .func=dummy_func }));

1948

g_assert_false(queue_has_question(queue));

1949

}

1950

1951

static void test_queue_has_question_true(__attribute__((unused))

1952

test_fixture *fixture,

1953

__attribute__((unused))

1954

gconstpointer user_data){

1955

__attribute__((cleanup(cleanup_queue)))

1956

task_queue *queue = create_queue();

1957

g_assert_nonnull(queue);

1958

char *const question_filename

1959

= strdup("/nonexistent/question_filename");

1960

g_assert_nonnull(question_filename);

1961

task_context task = {

1962

.func=dummy_func,

1963

.question_filename=question_filename,

1964

};

1965

g_assert_true(add_to_queue(queue, task));

1966

g_assert_true(queue_has_question(queue));

1967

}

1968

1969

static void test_queue_has_question_false2(__attribute__((unused))

1970

test_fixture *fixture,

1971

__attribute__((unused))

1972

gconstpointer user_data){

1973

__attribute__((cleanup(cleanup_queue)))

1974

task_queue *queue = create_queue();

1975

g_assert_nonnull(queue);

1976

task_context task = { .func=dummy_func };

1977

g_assert_true(add_to_queue(queue, task));

1978

g_assert_true(add_to_queue(queue, task));

1979

g_assert_cmpint((int)queue->length, ==, 2);

1980

g_assert_false(queue_has_question(queue));

1981

}

1982

1983

static void test_queue_has_question_true2(__attribute__((unused))

1984

test_fixture *fixture,

1985

__attribute__((unused))

1986

gconstpointer user_data){

1987

__attribute__((cleanup(cleanup_queue)))

1988

task_queue *queue = create_queue();

1989

g_assert_nonnull(queue);

1990

task_context task1 = { .func=dummy_func };

1991

g_assert_true(add_to_queue(queue, task1));

1992

char *const question_filename

1993

= strdup("/nonexistent/question_filename");

1994

g_assert_nonnull(question_filename);

1995

task_context task2 = {

1996

.func=dummy_func,

1997

.question_filename=question_filename,

1998

};

1999

g_assert_true(add_to_queue(queue, task2));

2000

g_assert_cmpint((int)queue->length, ==, 2);

2001

g_assert_true(queue_has_question(queue));

2002

}

2003

2004

static void test_cleanup_buffer(__attribute__((unused))

2005

test_fixture *fixture,

2006

__attribute__((unused))

2007

gconstpointer user_data){

2008

buffer buf = {};

2009

2010

const size_t buffersize = 10;

2011

2012

buf.data = malloc(buffersize);

2013

g_assert_nonnull(buf.data);

2014

if(mlock(buf.data, buffersize) != 0){

2015

g_assert_true(errno == EPERM or errno == ENOMEM);

2016

}

2017

2018

cleanup_buffer(&buf);

2019

g_assert_null(buf.data);

2020

}

2021

2022

static

2023

void test_string_set_new_set_contains_nothing(__attribute__((unused))

2024

test_fixture *fixture,

2025

__attribute__((unused))

2026

gconstpointer

2027

user_data){

2028

__attribute__((cleanup(string_set_clear)))

2029

string_set set = {};

2030

g_assert_false(string_set_contains(set, "")); /* Empty string */

2031

g_assert_false(string_set_contains(set, "test_string"));

2032

}

2033

2034

static void

2035

test_string_set_with_added_string_contains_it(__attribute__((unused))

2036

test_fixture *fixture,

2037

__attribute__((unused))

2038

gconstpointer

2039

user_data){

2040

__attribute__((cleanup(string_set_clear)))

2041

string_set set = {};

2042

g_assert_true(string_set_add(&set, "test_string"));

2043

g_assert_true(string_set_contains(set, "test_string"));

2044

}

2045

2046

static void

2047

test_string_set_cleared_does_not_contain_str(__attribute__((unused))

2048

test_fixture *fixture,

2049

__attribute__((unused))

2050

gconstpointer user_data){

2051

__attribute__((cleanup(string_set_clear)))

2052

string_set set = {};

2053

g_assert_true(string_set_add(&set, "test_string"));

2054

string_set_clear(&set);

2055

g_assert_false(string_set_contains(set, "test_string"));

2056

}

2057

2058

static

2059

void test_string_set_swap_one_with_empty(__attribute__((unused))

2060

test_fixture *fixture,

2061

__attribute__((unused))

2062

gconstpointer user_data){

2063

__attribute__((cleanup(string_set_clear)))

2064

string_set set1 = {};

2065

__attribute__((cleanup(string_set_clear)))

2066

string_set set2 = {};

2067

g_assert_true(string_set_add(&set1, "test_string1"));

2068

string_set_swap(&set1, &set2);

2069

g_assert_false(string_set_contains(set1, "test_string1"));

2070

g_assert_true(string_set_contains(set2, "test_string1"));

2071

}

2072

2073

static

2074

void test_string_set_swap_empty_with_one(__attribute__((unused))

2075

test_fixture *fixture,

2076

__attribute__((unused))

2077

gconstpointer user_data){

2078

__attribute__((cleanup(string_set_clear)))

2079

string_set set1 = {};

2080

__attribute__((cleanup(string_set_clear)))

2081

string_set set2 = {};

2082

g_assert_true(string_set_add(&set2, "test_string2"));

2083

string_set_swap(&set1, &set2);

2084

g_assert_true(string_set_contains(set1, "test_string2"));

2085

g_assert_false(string_set_contains(set2, "test_string2"));

2086

}

2087

2088

static void test_string_set_swap_one_with_one(__attribute__((unused))

2089

test_fixture *fixture,

2090

__attribute__((unused))

2091

gconstpointer

2092

user_data){

2093

__attribute__((cleanup(string_set_clear)))

2094

string_set set1 = {};

2095

__attribute__((cleanup(string_set_clear)))

2096

string_set set2 = {};

2097

g_assert_true(string_set_add(&set1, "test_string1"));

2098

g_assert_true(string_set_add(&set2, "test_string2"));

2099

string_set_swap(&set1, &set2);

2100

g_assert_false(string_set_contains(set1, "test_string1"));

2101

g_assert_true(string_set_contains(set1, "test_string2"));

2102

g_assert_false(string_set_contains(set2, "test_string2"));

2103

g_assert_true(string_set_contains(set2, "test_string1"));

2104

}

2105

2106

static bool fd_has_cloexec_and_nonblock(const int);

2107

2108

static bool epoll_set_contains(int, int, uint32_t);

2109

2110

static void test_start_mandos_client(test_fixture *fixture,

2111

__attribute__((unused))

2112

gconstpointer user_data){

2113

2114

bool mandos_client_exited = false;

2115

bool quit_now = false;

2116

__attribute__((cleanup(cleanup_close)))

2117

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2118

g_assert_cmpint(epoll_fd, >=, 0);

2119

__attribute__((cleanup(cleanup_queue)))

2120

task_queue *queue = create_queue();

2121

g_assert_nonnull(queue);

2122

buffer password = {};

2123

bool password_is_read = false;

2124

const char helper_directory[] = "/nonexistent";

2125

const char *const argv[] = { "/bin/true", NULL };

2126

2127

g_assert_true(start_mandos_client(queue, epoll_fd,

2128

&mandos_client_exited, &quit_now,

2129

&password, &password_is_read,

2130

&fixture->orig_sigaction,

2131

fixture->orig_sigmask,

2132

helper_directory, 0, 0, argv));

2133

2134

g_assert_cmpuint((unsigned int)queue->length, >=, 2);

2135

2136

const task_context *const added_wait_task

2137

= find_matching_task(queue, (task_context){

2138

.func=wait_for_mandos_client_exit,

2139

.mandos_client_exited=&mandos_client_exited,

2140

.quit_now=&quit_now,

2141

});

2142

g_assert_nonnull(added_wait_task);

2143

g_assert_cmpint(added_wait_task->pid, >, 0);

2144

g_assert_cmpint(kill(added_wait_task->pid, SIGKILL), ==, 0);

2145

waitpid(added_wait_task->pid, NULL, 0);

2146

2147

const task_context *const added_read_task

2148

= find_matching_task(queue, (task_context){

2149

.func=read_mandos_client_output,

2150

.epoll_fd=epoll_fd,

2151

.password=&password,

2152

.password_is_read=&password_is_read,

2153

.quit_now=&quit_now,

2154

});

2155

g_assert_nonnull(added_read_task);

2156

g_assert_cmpint(added_read_task->fd, >, 2);

2157

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

2158

g_assert_true(epoll_set_contains(epoll_fd, added_read_task->fd,

2159

EPOLLIN | EPOLLRDHUP));

2160

}

2161

2162

static bool fd_has_cloexec_and_nonblock(const int fd){

2163

const int socket_fd_flags = fcntl(fd, F_GETFD, 0);

2164

const int socket_file_flags = fcntl(fd, F_GETFL, 0);

2165

return ((socket_fd_flags >= 0)

2166

and (socket_fd_flags & FD_CLOEXEC)

2167

and (socket_file_flags >= 0)

2168

and (socket_file_flags & O_NONBLOCK));

2169

}

2170

2171

__attribute__((const))

2172

bool is_privileged(void){

2173

uid_t user = getuid() + 1;

2174

if(user == 0){ /* Overflow check */

2175

user++;

2176

}

2177

gid_t group = getuid() + 1;

2178

if(group == 0){ /* Overflow check */

2179

group++;

2180

}

2181

const pid_t pid = fork();

2182

if(pid == 0){ /* Child */

2183

if(setresgid((uid_t)-1, group, group) == -1){

2184

if(errno != EPERM){

2185

error(EXIT_FAILURE, errno, "Failed to setresgid(-1, %" PRIuMAX

2186

", %" PRIuMAX")", (uintmax_t)group, (uintmax_t)group);

2187

}

2188

exit(EXIT_FAILURE);

2189

}

2190

if(setresuid((uid_t)-1, user, user) == -1){

2191

if(errno != EPERM){

2192

error(EXIT_FAILURE, errno, "Failed to setresuid(-1, %" PRIuMAX

2193

", %" PRIuMAX")", (uintmax_t)user, (uintmax_t)user);

2194

}

2195

exit(EXIT_FAILURE);

2196

}

2197

exit(EXIT_SUCCESS);

2198

}

2199

if(pid == -1){

2200

error(EXIT_FAILURE, errno, "Failed to fork()");

2201

}

2202

2203

int status;

2204

waitpid(pid, &status, 0);

2205

if(WIFEXITED(status) and (WEXITSTATUS(status) == EXIT_SUCCESS)){

2206

return true;

2207

}

2208

return false;

2209

}

2210

2211

static bool epoll_set_contains(int epoll_fd, int fd, uint32_t events){

2212

/* Only scan for events in this eventmask */

2213

const uint32_t eventmask = EPOLLIN | EPOLLOUT | EPOLLRDHUP;

2214

__attribute__((cleanup(cleanup_string)))

2215

char *fdinfo_name = NULL;

2216

int ret = asprintf(&fdinfo_name, "/proc/self/fdinfo/%d", epoll_fd);

2217

g_assert_cmpint(ret, >, 0);

2218

g_assert_nonnull(fdinfo_name);

2219

2220

FILE *fdinfo = fopen(fdinfo_name, "r");

2221

g_assert_nonnull(fdinfo);

2222

uint32_t reported_events;

2223

buffer line = {};

2224

int found_fd = -1;

2225

2226

do {

2227

if(getline(&line.data, &line.allocated, fdinfo) < 0){

2228

break;

2229

}

2230

/* See proc(5) for format of /proc/PID/fdinfo/FD for epoll fd's */

2231

if(sscanf(line.data, "tfd: %d events: %" SCNx32 " ",

2232

&found_fd, &reported_events) == 2){

2233

if(found_fd == fd){

2234

break;

2235

}

2236

}

2237

} while(not feof(fdinfo) and not ferror(fdinfo));

2238

g_assert_cmpint(fclose(fdinfo), ==, 0);

2239

free(line.data);

2240

if(found_fd != fd){

2241

return false;

2242

}

2243

2244

if(events == 0){

2245

/* Don't check events if none are given */

2246

return true;

2247

}

2248

return (reported_events & eventmask) == (events & eventmask);

2249

}

2250

2251

static void test_start_mandos_client_execv(test_fixture *fixture,

2252

__attribute__((unused))

2253

gconstpointer user_data){

2254

bool mandos_client_exited = false;

2255

bool quit_now = false;

2256

__attribute__((cleanup(cleanup_close)))

2257

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2258

g_assert_cmpint(epoll_fd, >=, 0);

2259

__attribute__((cleanup(cleanup_queue)))

2260

task_queue *queue = create_queue();

2261

g_assert_nonnull(queue);

2262

__attribute__((cleanup(cleanup_buffer)))

2263

buffer password = {};

2264

const char helper_directory[] = "/nonexistent";

2265

/* Can't execv("/", ...), so this should fail */

2266

const char *const argv[] = { "/", NULL };

2267

2268

{

2269

__attribute__((cleanup(cleanup_close)))

2270

const int devnull_fd = open("/dev/null",

2271

O_WRONLY | O_CLOEXEC | O_NOCTTY);

2272

g_assert_cmpint(devnull_fd, >=, 0);

2273

__attribute__((cleanup(cleanup_close)))

2274

const int real_stderr_fd = dup(STDERR_FILENO);

2275

g_assert_cmpint(real_stderr_fd, >=, 0);

2276

dup2(devnull_fd, STDERR_FILENO);

2277

2278

const bool success = start_mandos_client(queue, epoll_fd,

2279

&mandos_client_exited,

2280

&quit_now,

2281

&password,

2282

(bool[]){false},

2283

&fixture->orig_sigaction,

2284

fixture->orig_sigmask,

2285

helper_directory, 0, 0,

2286

argv);

2287

dup2(real_stderr_fd, STDERR_FILENO);

2288

g_assert_true(success);

2289

}

2290

g_assert_cmpuint((unsigned int)queue->length, ==, 2);

2291

2292

struct timespec starttime, currtime;

2293

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);

2294

do {

2295

queue->next_run = 0;

2296

string_set cancelled_filenames = {};

2297

2298

{

2299

__attribute__((cleanup(cleanup_close)))

2300

const int devnull_fd = open("/dev/null",

2301

O_WRONLY | O_CLOEXEC | O_NOCTTY);

2302

g_assert_cmpint(devnull_fd, >=, 0);

2303

__attribute__((cleanup(cleanup_close)))

2304

const int real_stderr_fd = dup(STDERR_FILENO);

2305

g_assert_cmpint(real_stderr_fd, >=, 0);

2306

g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));

2307

dup2(devnull_fd, STDERR_FILENO);

2308

const bool success = run_queue(&queue, &cancelled_filenames,

2309

&quit_now);

2310

dup2(real_stderr_fd, STDERR_FILENO);

2311

if(not success){

2312

break;

2313

}

2314

}

2315

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);

2316

} while(((queue->length) > 0)

2317

and (not quit_now)

2318

and ((currtime.tv_sec - starttime.tv_sec) < 10));

2319

2320

g_assert_true(quit_now);

2321

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

2322

g_assert_true(mandos_client_exited);

2323

}

2324

2325

static void test_start_mandos_client_suid_euid(test_fixture *fixture,

2326

__attribute__((unused))

2327

gconstpointer

2328

user_data){

2329

if(not is_privileged()){

2330

g_test_skip("Not privileged");

2331

return;

2332

}

2333

2334

bool mandos_client_exited = false;

2335

bool quit_now = false;

2336

__attribute__((cleanup(cleanup_close)))

2337

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2338

g_assert_cmpint(epoll_fd, >=, 0);

2339

__attribute__((cleanup(cleanup_queue)))

2340

task_queue *queue = create_queue();

2341

g_assert_nonnull(queue);

2342

__attribute__((cleanup(cleanup_buffer)))

2343

buffer password = {};

2344

bool password_is_read = false;

2345

const char helper_directory[] = "/nonexistent";

2346

const char *const argv[] = { "/usr/bin/id", "--user", NULL };

2347

uid_t user = 1000;

2348

gid_t group = 1001;

2349

2350

const bool success = start_mandos_client(queue, epoll_fd,

2351

&mandos_client_exited,

2352

&quit_now, &password,

2353

&password_is_read,

2354

&fixture->orig_sigaction,

2355

fixture->orig_sigmask,

2356

helper_directory, user,

2357

group, argv);

2358

g_assert_true(success);

2359

g_assert_cmpuint((unsigned int)queue->length, >, 0);

2360

2361

struct timespec starttime, currtime;

2362

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);

2363

do {

2364

queue->next_run = 0;

2365

string_set cancelled_filenames = {};

2366

g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));

2367

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

2368

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);

2369

} while(((queue->length) > 0)

2370

and (not quit_now)

2371

and ((currtime.tv_sec - starttime.tv_sec) < 10));

2372

2373

g_assert_false(quit_now);

2374

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

2375

g_assert_true(mandos_client_exited);

2376

2377

g_assert_true(password_is_read);

2378

g_assert_nonnull(password.data);

2379

2380

uintmax_t id;

2381

g_assert_cmpint(sscanf(password.data, "%" SCNuMAX "\n", &id),

2382

==, 1);

2383

g_assert_true((uid_t)id == id);

2384

2385

g_assert_cmpuint((unsigned int)id, ==, 0);

2386

}

2387

2388

static void test_start_mandos_client_suid_egid(test_fixture *fixture,

2389

__attribute__((unused))

2390

gconstpointer

2391

user_data){

2392

if(not is_privileged()){

2393

g_test_skip("Not privileged");

2394

return;

2395

}

2396

2397

bool mandos_client_exited = false;

2398

bool quit_now = false;

2399

__attribute__((cleanup(cleanup_close)))

2400

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2401

g_assert_cmpint(epoll_fd, >=, 0);

2402

__attribute__((cleanup(cleanup_queue)))

2403

task_queue *queue = create_queue();

2404

g_assert_nonnull(queue);

2405

__attribute__((cleanup(cleanup_buffer)))

2406

buffer password = {};

2407

bool password_is_read = false;

2408

const char helper_directory[] = "/nonexistent";

2409

const char *const argv[] = { "/usr/bin/id", "--group", NULL };

2410

uid_t user = 1000;

2411

gid_t group = 1001;

2412

2413

const bool success = start_mandos_client(queue, epoll_fd,

2414

&mandos_client_exited,

2415

&quit_now, &password,

2416

&password_is_read,

2417

&fixture->orig_sigaction,

2418

fixture->orig_sigmask,

2419

helper_directory, user,

2420

group, argv);

2421

g_assert_true(success);

2422

g_assert_cmpuint((unsigned int)queue->length, >, 0);

2423

2424

struct timespec starttime, currtime;

2425

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);

2426

do {

2427

queue->next_run = 0;

2428

string_set cancelled_filenames = {};

2429

g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));

2430

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

2431

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);

2432

} while(((queue->length) > 0)

2433

and (not quit_now)

2434

and ((currtime.tv_sec - starttime.tv_sec) < 10));

2435

2436

g_assert_false(quit_now);

2437

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

2438

g_assert_true(mandos_client_exited);

2439

2440

g_assert_true(password_is_read);

2441

g_assert_nonnull(password.data);

2442

2443

uintmax_t id;

2444

g_assert_cmpint(sscanf(password.data, "%" SCNuMAX "\n", &id),

2445

==, 1);

2446

g_assert_true((gid_t)id == id);

2447

2448

g_assert_cmpuint((unsigned int)id, ==, 0);

2449

}

2450

2451

static void test_start_mandos_client_suid_ruid(test_fixture *fixture,

2452

__attribute__((unused))

2453

gconstpointer

2454

user_data){

2455

if(not is_privileged()){

2456

g_test_skip("Not privileged");

2457

return;

2458

}

2459

2460

bool mandos_client_exited = false;

2461

bool quit_now = false;

2462

__attribute__((cleanup(cleanup_close)))

2463

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2464

g_assert_cmpint(epoll_fd, >=, 0);

2465

__attribute__((cleanup(cleanup_queue)))

2466

task_queue *queue = create_queue();

2467

g_assert_nonnull(queue);

2468

__attribute__((cleanup(cleanup_buffer)))

2469

buffer password = {};

2470

bool password_is_read = false;

2471

const char helper_directory[] = "/nonexistent";

2472

const char *const argv[] = { "/usr/bin/id", "--user", "--real",

2473

NULL };

2474

uid_t user = 1000;

2475

gid_t group = 1001;

2476

2477

const bool success = start_mandos_client(queue, epoll_fd,

2478

&mandos_client_exited,

2479

&quit_now, &password,

2480

&password_is_read,

2481

&fixture->orig_sigaction,

2482

fixture->orig_sigmask,

2483

helper_directory, user,

2484

group, argv);

2485

g_assert_true(success);

2486

g_assert_cmpuint((unsigned int)queue->length, >, 0);

2487

2488

struct timespec starttime, currtime;

2489

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);

2490

do {

2491

queue->next_run = 0;

2492

string_set cancelled_filenames = {};

2493

g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));

2494

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

2495

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);

2496

} while(((queue->length) > 0)

2497

and (not quit_now)

2498

and ((currtime.tv_sec - starttime.tv_sec) < 10));

2499

2500

g_assert_false(quit_now);

2501

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

2502

g_assert_true(mandos_client_exited);

2503

2504

g_assert_true(password_is_read);

2505

g_assert_nonnull(password.data);

2506

2507

uintmax_t id;

2508

g_assert_cmpint(sscanf(password.data, "%" SCNuMAX "\n", &id),

2509

==, 1);

2510

g_assert_true((uid_t)id == id);

2511

2512

g_assert_cmpuint((unsigned int)id, ==, user);

2513

}

2514

2515

static void test_start_mandos_client_suid_rgid(test_fixture *fixture,

2516

__attribute__((unused))

2517

gconstpointer

2518

user_data){

2519

if(not is_privileged()){

2520

g_test_skip("Not privileged");

2521

return;

2522

}

2523

2524

bool mandos_client_exited = false;

2525

bool quit_now = false;

2526

__attribute__((cleanup(cleanup_close)))

2527

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2528

g_assert_cmpint(epoll_fd, >=, 0);

2529

__attribute__((cleanup(cleanup_queue)))

2530

task_queue *queue = create_queue();

2531

g_assert_nonnull(queue);

2532

__attribute__((cleanup(cleanup_buffer)))

2533

buffer password = {};

2534

bool password_is_read = false;

2535

const char helper_directory[] = "/nonexistent";

2536

const char *const argv[] = { "/usr/bin/id", "--group", "--real",

2537

NULL };

2538

uid_t user = 1000;

2539

gid_t group = 1001;

2540

2541

const bool success = start_mandos_client(queue, epoll_fd,

2542

&mandos_client_exited,

2543

&quit_now, &password,

2544

&password_is_read,

2545

&fixture->orig_sigaction,

2546

fixture->orig_sigmask,

2547

helper_directory, user,

2548

group, argv);

2549

g_assert_true(success);

2550

g_assert_cmpuint((unsigned int)queue->length, >, 0);

2551

2552

struct timespec starttime, currtime;

2553

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);

2554

do {

2555

queue->next_run = 0;

2556

string_set cancelled_filenames = {};

2557

g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));

2558

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

2559

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);

2560

} while(((queue->length) > 0)

2561

and (not quit_now)

2562

and ((currtime.tv_sec - starttime.tv_sec) < 10));

2563

2564

g_assert_false(quit_now);

2565

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

2566

g_assert_true(mandos_client_exited);

2567

2568

g_assert_true(password_is_read);

2569

g_assert_nonnull(password.data);

2570

2571

uintmax_t id;

2572

g_assert_cmpint(sscanf(password.data, "%" SCNuMAX "\n", &id),

2573

==, 1);

2574

g_assert_true((gid_t)id == id);

2575

2576

g_assert_cmpuint((unsigned int)id, ==, group);

2577

}

2578

2579

static void test_start_mandos_client_read(test_fixture *fixture,

2580

__attribute__((unused))

2581

gconstpointer user_data){

2582

bool mandos_client_exited = false;

2583

bool quit_now = false;

2584

__attribute__((cleanup(cleanup_close)))

2585

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2586

g_assert_cmpint(epoll_fd, >=, 0);

2587

__attribute__((cleanup(cleanup_queue)))

2588

task_queue *queue = create_queue();

2589

g_assert_nonnull(queue);

2590

__attribute__((cleanup(cleanup_buffer)))

2591

buffer password = {};

2592

bool password_is_read = false;

2593

const char dummy_test_password[] = "dummy test password";

2594

const char helper_directory[] = "/nonexistent";

2595

const char *const argv[] = { "/bin/echo", "-n", dummy_test_password,

2596

NULL };

2597

2598

const bool success = start_mandos_client(queue, epoll_fd,

2599

&mandos_client_exited,

2600

&quit_now, &password,

2601

&password_is_read,

2602

&fixture->orig_sigaction,

2603

fixture->orig_sigmask,

2604

helper_directory, 0, 0,

2605

argv);

2606

g_assert_true(success);

2607

g_assert_cmpuint((unsigned int)queue->length, >, 0);

2608

2609

struct timespec starttime, currtime;

2610

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);

2611

do {

2612

queue->next_run = 0;

2613

string_set cancelled_filenames = {};

2614

g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));

2615

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

2616

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);

2617

} while(((queue->length) > 0)

2618

and (not quit_now)

2619

and ((currtime.tv_sec - starttime.tv_sec) < 10));

2620

2621

g_assert_false(quit_now);

2622

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

2623

g_assert_true(mandos_client_exited);

2624

2625

g_assert_true(password_is_read);

2626

g_assert_cmpint((int)password.length, ==,

2627

sizeof(dummy_test_password)-1);

2628

g_assert_nonnull(password.data);

2629

g_assert_cmpint(memcmp(dummy_test_password, password.data,

2630

sizeof(dummy_test_password)-1), ==, 0);

2631

}

2632

2633

static

2634

void test_start_mandos_client_helper_directory(test_fixture *fixture,

2635

__attribute__((unused))

2636

gconstpointer

2637

user_data){

2638

bool mandos_client_exited = false;

2639

bool quit_now = false;

2640

__attribute__((cleanup(cleanup_close)))

2641

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2642

g_assert_cmpint(epoll_fd, >=, 0);

2643

__attribute__((cleanup(cleanup_queue)))

2644

task_queue *queue = create_queue();

2645

g_assert_nonnull(queue);

2646

__attribute__((cleanup(cleanup_buffer)))

2647

buffer password = {};

2648

bool password_is_read = false;

2649

const char helper_directory[] = "/nonexistent";

2650

const char *const argv[] = { "/bin/sh", "-c",

2651

"echo -n ${MANDOSPLUGINHELPERDIR}", NULL };

2652

2653

const bool success = start_mandos_client(queue, epoll_fd,

2654

&mandos_client_exited,

2655

&quit_now, &password,

2656

&password_is_read,

2657

&fixture->orig_sigaction,

2658

fixture->orig_sigmask,

2659

helper_directory, 0, 0,

2660

argv);

2661

g_assert_true(success);

2662

g_assert_cmpuint((unsigned int)queue->length, >, 0);

2663

2664

struct timespec starttime, currtime;

2665

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);

2666

do {

2667

queue->next_run = 0;

2668

string_set cancelled_filenames = {};

2669

g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));

2670

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

2671

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);

2672

} while(((queue->length) > 0)

2673

and (not quit_now)

2674

and ((currtime.tv_sec - starttime.tv_sec) < 10));

2675

2676

g_assert_false(quit_now);

2677

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

2678

g_assert_true(mandos_client_exited);

2679

2680

g_assert_true(password_is_read);

2681

g_assert_cmpint((int)password.length, ==,

2682

sizeof(helper_directory)-1);

2683

g_assert_nonnull(password.data);

2684

g_assert_cmpint(memcmp(helper_directory, password.data,

2685

sizeof(helper_directory)-1), ==, 0);

2686

}

2687

2688

__attribute__((nonnull, warn_unused_result))

2689

static bool proc_status_sigblk_to_sigset(const char *const,

2690

sigset_t *const);

2691

2692

static void test_start_mandos_client_sigmask(test_fixture *fixture,

2693

__attribute__((unused))

2694

gconstpointer user_data){

2695

bool mandos_client_exited = false;

2696

bool quit_now = false;

2697

__attribute__((cleanup(cleanup_close)))

2698

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2699

g_assert_cmpint(epoll_fd, >=, 0);

2700

__attribute__((cleanup(cleanup_queue)))

2701

task_queue *queue = create_queue();

2702

g_assert_nonnull(queue);

2703

__attribute__((cleanup(cleanup_buffer)))

2704

buffer password = {};

2705

bool password_is_read = false;

2706

const char helper_directory[] = "/nonexistent";

2707

/* see proc(5) for format of /proc/self/status */

2708

const char *const argv[] = { "/usr/bin/awk",

2709

"$1==\"SigBlk:\"{ print $2 }", "/proc/self/status", NULL };

2710

2711

g_assert_true(start_mandos_client(queue, epoll_fd,

2712

&mandos_client_exited, &quit_now,

2713

&password, &password_is_read,

2714

&fixture->orig_sigaction,

2715

fixture->orig_sigmask,

2716

helper_directory, 0, 0, argv));

2717

2718

struct timespec starttime, currtime;

2719

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);

2720

do {

2721

queue->next_run = 0;

2722

string_set cancelled_filenames = {};

2723

g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));

2724

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

2725

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);

2726

} while((not (mandos_client_exited and password_is_read))

2727

and (not quit_now)

2728

and ((currtime.tv_sec - starttime.tv_sec) < 10));

2729

g_assert_true(mandos_client_exited);

2730

g_assert_true(password_is_read);

2731

2732

sigset_t parsed_sigmask;

2733

g_assert_true(proc_status_sigblk_to_sigset(password.data,

2734

&parsed_sigmask));

2735

2736

for(int signum = 1; signum < NSIG; signum++){

2737

const bool has_signal = sigismember(&parsed_sigmask, signum);

2738

if(sigismember(&fixture->orig_sigmask, signum)){

2739

g_assert_true(has_signal);

2740

} else {

2741

g_assert_false(has_signal);

2742

}

2743

}

2744

}

2745

2746

__attribute__((nonnull, warn_unused_result))

2747

static bool proc_status_sigblk_to_sigset(const char *const sigblk,

2748

sigset_t *const sigmask){

2749

/* parse /proc/PID/status SigBlk value and convert to a sigset_t */

2750

uintmax_t scanned_sigmask;

2751

if(sscanf(sigblk, "%" SCNxMAX " ", &scanned_sigmask) != 1){

2752

return false;

2753

}

2754

if(sigemptyset(sigmask) != 0){

2755

return false;

2756

}

2757

for(int signum = 1; signum < NSIG; signum++){

2758

if(scanned_sigmask & ((uintmax_t)1 << (signum-1))){

2759

if(sigaddset(sigmask, signum) != 0){

2760

return false;

2761

}

2762

}

2763

}

2764

return true;

2765

}

2766

2767

static void run_task_with_stderr_to_dev_null(const task_context task,

2768

task_queue *const queue);

2769

2770

static

2771

void test_wait_for_mandos_client_exit_badpid(__attribute__((unused))

2772

test_fixture *fixture,

2773

__attribute__((unused))

2774

gconstpointer user_data){

2775

2776

bool mandos_client_exited = false;

2777

bool quit_now = false;

2778

2779

__attribute__((cleanup(cleanup_queue)))

2780

task_queue *queue = create_queue();

2781

g_assert_nonnull(queue);

2782

const task_context task = {

2783

.func=wait_for_mandos_client_exit,

2784

.pid=1,

2785

.mandos_client_exited=&mandos_client_exited,

2786

.quit_now=&quit_now,

2787

};

2788

run_task_with_stderr_to_dev_null(task, queue);

2789

2790

g_assert_false(mandos_client_exited);

2791

g_assert_true(quit_now);

2792

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

2793

}

2794

2795

static void run_task_with_stderr_to_dev_null(const task_context task,

2796

task_queue *const queue){

2797

FILE *real_stderr = stderr;

2798

FILE *devnull = fopen("/dev/null", "we");

2799

g_assert_nonnull(devnull);

2800

2801

stderr = devnull;

2802

task.func(task, queue);

2803

stderr = real_stderr;

2804

2805

g_assert_cmpint(fclose(devnull), ==, 0);

2806

}

2807

2808

static

2809

void test_wait_for_mandos_client_exit_noexit(test_fixture *fixture,

2810

__attribute__((unused))

2811

gconstpointer user_data){

2812

bool mandos_client_exited = false;

2813

bool quit_now = false;

2814

2815

pid_t create_eternal_process(void){

2816

const pid_t pid = fork();

2817

if(pid == 0){ /* Child */

2818

if(not restore_signal_handler(&fixture->orig_sigaction)){

2819

_exit(EXIT_FAILURE);

2820

}

2821

if(not restore_sigmask(&fixture->orig_sigmask)){

2822

_exit(EXIT_FAILURE);

2823

}

2824

while(true){

2825

pause();

2826

}

2827

}

2828

return pid;

2829

}

2830

pid_t pid = create_eternal_process();

2831

g_assert_true(pid != -1);

2832

2833

__attribute__((cleanup(cleanup_queue)))

2834

task_queue *queue = create_queue();

2835

g_assert_nonnull(queue);

2836

const task_context task = {

2837

.func=wait_for_mandos_client_exit,

2838

.pid=pid,

2839

.mandos_client_exited=&mandos_client_exited,

2840

.quit_now=&quit_now,

2841

};

2842

task.func(task, queue);

2843

2844

g_assert_false(mandos_client_exited);

2845

g_assert_false(quit_now);

2846

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

2847

2848

g_assert_nonnull(find_matching_task(queue, (task_context){

2849

.func=wait_for_mandos_client_exit,

2850

.pid=task.pid,

2851

.mandos_client_exited=&mandos_client_exited,

2852

.quit_now=&quit_now,

2853

}));

2854

}

2855

2856

static

2857

void test_wait_for_mandos_client_exit_success(test_fixture *fixture,

2858

__attribute__((unused))

2859

gconstpointer

2860

user_data){

2861

bool mandos_client_exited = false;

2862

bool quit_now = false;

2863

2864

pid_t create_successful_process(void){

2865

const pid_t pid = fork();

2866

if(pid == 0){ /* Child */

2867

if(not restore_signal_handler(&fixture->orig_sigaction)){

2868

_exit(EXIT_FAILURE);

2869

}

2870

if(not restore_sigmask(&fixture->orig_sigmask)){

2871

_exit(EXIT_FAILURE);

2872

}

2873

exit(EXIT_SUCCESS);

2874

}

2875

return pid;

2876

}

2877

const pid_t pid = create_successful_process();

2878

g_assert_true(pid != -1);

2879

2880

__attribute__((cleanup(cleanup_queue)))

2881

task_queue *queue = create_queue();

2882

g_assert_nonnull(queue);

2883

const task_context initial_task = {

2884

.func=wait_for_mandos_client_exit,

2885

.pid=pid,

2886

.mandos_client_exited=&mandos_client_exited,

2887

.quit_now=&quit_now,

2888

};

2889

g_assert_true(add_to_queue(queue, initial_task));

2890

2891

struct timespec starttime, currtime;

2892

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);

2893

__attribute__((cleanup(cleanup_close)))

2894

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2895

do {

2896

queue->next_run = 0;

2897

g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));

2898

g_assert_true(run_queue(&queue, (string_set[]){{}}, &quit_now));

2899

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);

2900

} while((not mandos_client_exited)

2901

and (not quit_now)

2902

and ((currtime.tv_sec - starttime.tv_sec) < 10));

2903

2904

g_assert_true(mandos_client_exited);

2905

g_assert_false(quit_now);

2906

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

2907

}

2908

2909

static

2910

void test_wait_for_mandos_client_exit_failure(test_fixture *fixture,

2911

__attribute__((unused))

2912

gconstpointer

2913

user_data){

2914

bool mandos_client_exited = false;

2915

bool quit_now = false;

2916

2917

pid_t create_failing_process(void){

2918

const pid_t pid = fork();

2919

if(pid == 0){ /* Child */

2920

if(not restore_signal_handler(&fixture->orig_sigaction)){

2921

_exit(EXIT_FAILURE);

2922

}

2923

if(not restore_sigmask(&fixture->orig_sigmask)){

2924

_exit(EXIT_FAILURE);

2925

}

2926

exit(EXIT_FAILURE);

2927

}

2928

return pid;

2929

}

2930

const pid_t pid = create_failing_process();

2931

g_assert_true(pid != -1);

2932

2933

__attribute__((cleanup(string_set_clear)))

2934

string_set cancelled_filenames = {};

2935

__attribute__((cleanup(cleanup_close)))

2936

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

2937

g_assert_cmpint(epoll_fd, >=, 0);

2938

__attribute__((cleanup(cleanup_queue)))

2939

task_queue *queue = create_queue();

2940

g_assert_nonnull(queue);

2941

g_assert_true(add_to_queue(queue, (task_context){

2942

.func=wait_for_mandos_client_exit,

2943

.pid=pid,

2944

.mandos_client_exited=&mandos_client_exited,

2945

.quit_now=&quit_now,

2946

}));

2947

2948

g_assert_true(sigismember(&fixture->orig_sigmask, SIGCHLD) == 0);

2949

2950

__attribute__((cleanup(cleanup_close)))

2951

const int devnull_fd = open("/dev/null",

2952

O_WRONLY | O_CLOEXEC | O_NOCTTY);

2953

g_assert_cmpint(devnull_fd, >=, 0);

2954

__attribute__((cleanup(cleanup_close)))

2955

const int real_stderr_fd = dup(STDERR_FILENO);

2956

g_assert_cmpint(real_stderr_fd, >=, 0);

2957

2958

struct timespec starttime, currtime;

2959

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);

2960

do {

2961

g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));

2962

dup2(devnull_fd, STDERR_FILENO);

2963

const bool success = run_queue(&queue, &cancelled_filenames,

2964

&quit_now);

2965

dup2(real_stderr_fd, STDERR_FILENO);

2966

if(not success){

2967

break;

2968

}

2969

2970

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);

2971

} while((not mandos_client_exited)

2972

and (not quit_now)

2973

and ((currtime.tv_sec - starttime.tv_sec) < 10));

2974

2975

g_assert_true(quit_now);

2976

g_assert_true(mandos_client_exited);

2977

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

2978

}

2979

2980

static

2981

void test_wait_for_mandos_client_exit_killed(test_fixture *fixture,

2982

__attribute__((unused))

2983

gconstpointer user_data){

2984

bool mandos_client_exited = false;

2985

bool quit_now = false;

2986

2987

pid_t create_killed_process(void){

2988

const pid_t pid = fork();

2989

if(pid == 0){ /* Child */

2990

if(not restore_signal_handler(&fixture->orig_sigaction)){

2991

_exit(EXIT_FAILURE);

2992

}

2993

if(not restore_sigmask(&fixture->orig_sigmask)){

2994

_exit(EXIT_FAILURE);

2995

}

2996

while(true){

2997

pause();

2998

}

2999

}

3000

kill(pid, SIGKILL);

3001

return pid;

3002

}

3003

const pid_t pid = create_killed_process();

3004

g_assert_true(pid != -1);

3005

3006

__attribute__((cleanup(string_set_clear)))

3007

string_set cancelled_filenames = {};

3008

__attribute__((cleanup(cleanup_close)))

3009

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3010

g_assert_cmpint(epoll_fd, >=, 0);

3011

__attribute__((cleanup(cleanup_queue)))

3012

task_queue *queue = create_queue();

3013

g_assert_nonnull(queue);

3014

g_assert_true(add_to_queue(queue, (task_context){

3015

.func=wait_for_mandos_client_exit,

3016

.pid=pid,

3017

.mandos_client_exited=&mandos_client_exited,

3018

.quit_now=&quit_now,

3019

}));

3020

3021

__attribute__((cleanup(cleanup_close)))

3022

const int devnull_fd = open("/dev/null",

3023

O_WRONLY | O_CLOEXEC, O_NOCTTY);

3024

g_assert_cmpint(devnull_fd, >=, 0);

3025

__attribute__((cleanup(cleanup_close)))

3026

const int real_stderr_fd = dup(STDERR_FILENO);

3027

g_assert_cmpint(real_stderr_fd, >=, 0);

3028

3029

struct timespec starttime, currtime;

3030

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &starttime) == 0);

3031

do {

3032

g_assert_true(wait_for_event(epoll_fd, queue->next_run, 0));

3033

dup2(devnull_fd, STDERR_FILENO);

3034

const bool success = run_queue(&queue, &cancelled_filenames,

3035

&quit_now);

3036

dup2(real_stderr_fd, STDERR_FILENO);

3037

if(not success){

3038

break;

3039

}

3040

3041

g_assert_true(clock_gettime(CLOCK_MONOTONIC, &currtime) == 0);

3042

} while((not mandos_client_exited)

3043

and (not quit_now)

3044

and ((currtime.tv_sec - starttime.tv_sec) < 10));

3045

3046

g_assert_true(mandos_client_exited);

3047

g_assert_true(quit_now);

3048

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

3049

}

3050

3051

static bool epoll_set_does_not_contain(int, int);

3052

3053

static

3054

void test_read_mandos_client_output_readerror(__attribute__((unused))

3055

test_fixture *fixture,

3056

__attribute__((unused))

3057

gconstpointer

3058

user_data){

3059

__attribute__((cleanup(cleanup_close)))

3060

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3061

g_assert_cmpint(epoll_fd, >=, 0);

3062

3063

__attribute__((cleanup(cleanup_buffer)))

3064

buffer password = {};

3065

3066

/* Reading /proc/self/mem from offset 0 will always give EIO */

3067

const int fd = open("/proc/self/mem",

3068

O_RDONLY | O_CLOEXEC | O_NOCTTY);

3069

3070

bool password_is_read = false;

3071

bool quit_now = false;

3072

__attribute__((cleanup(cleanup_queue)))

3073

task_queue *queue = create_queue();

3074

g_assert_nonnull(queue);

3075

3076

task_context task = {

3077

.func=read_mandos_client_output,

3078

.epoll_fd=epoll_fd,

3079

.fd=fd,

3080

.password=&password,

3081

.password_is_read=&password_is_read,

3082

.quit_now=&quit_now,

3083

};

3084

run_task_with_stderr_to_dev_null(task, queue);

3085

g_assert_false(password_is_read);

3086

g_assert_cmpint((int)password.length, ==, 0);

3087

g_assert_true(quit_now);

3088

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

3089

3090

g_assert_true(epoll_set_does_not_contain(epoll_fd, fd));

3091

3092

g_assert_cmpint(close(fd), ==, -1);

3093

}

3094

3095

static bool epoll_set_does_not_contain(int epoll_fd, int fd){

3096

return not epoll_set_contains(epoll_fd, fd, 0);

3097

}

3098

3099

static

3100

void test_read_mandos_client_output_nodata(__attribute__((unused))

3101

test_fixture *fixture,

3102

__attribute__((unused))

3103

gconstpointer user_data){

3104

__attribute__((cleanup(cleanup_close)))

3105

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3106

g_assert_cmpint(epoll_fd, >=, 0);

3107

3108

int pipefds[2];

3109

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

3110

3111

__attribute__((cleanup(cleanup_buffer)))

3112

buffer password = {};

3113

3114

bool password_is_read = false;

3115

bool quit_now = false;

3116

__attribute__((cleanup(cleanup_queue)))

3117

task_queue *queue = create_queue();

3118

g_assert_nonnull(queue);

3119

3120

task_context task = {

3121

.func=read_mandos_client_output,

3122

.epoll_fd=epoll_fd,

3123

.fd=pipefds[0],

3124

.password=&password,

3125

.password_is_read=&password_is_read,

3126

.quit_now=&quit_now,

3127

};

3128

task.func(task, queue);

3129

g_assert_false(password_is_read);

3130

g_assert_cmpint((int)password.length, ==, 0);

3131

g_assert_false(quit_now);

3132

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

3133

3134

g_assert_nonnull(find_matching_task(queue, (task_context){

3135

.func=read_mandos_client_output,

3136

.epoll_fd=epoll_fd,

3137

.fd=pipefds[0],

3138

.password=&password,

3139

.password_is_read=&password_is_read,

3140

.quit_now=&quit_now,

3141

}));

3142

3143

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

3144

EPOLLIN | EPOLLRDHUP));

3145

3146

g_assert_cmpint(close(pipefds[1]), ==, 0);

3147

}

3148

3149

static void test_read_mandos_client_output_eof(__attribute__((unused))

3150

test_fixture *fixture,

3151

__attribute__((unused))

3152

gconstpointer

3153

user_data){

3154

__attribute__((cleanup(cleanup_close)))

3155

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3156

g_assert_cmpint(epoll_fd, >=, 0);

3157

3158

int pipefds[2];

3159

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

3160

g_assert_cmpint(close(pipefds[1]), ==, 0);

3161

3162

__attribute__((cleanup(cleanup_buffer)))

3163

buffer password = {};

3164

3165

bool password_is_read = false;

3166

bool quit_now = false;

3167

__attribute__((cleanup(cleanup_queue)))

3168

task_queue *queue = create_queue();

3169

g_assert_nonnull(queue);

3170

3171

task_context task = {

3172

.func=read_mandos_client_output,

3173

.epoll_fd=epoll_fd,

3174

.fd=pipefds[0],

3175

.password=&password,

3176

.password_is_read=&password_is_read,

3177

.quit_now=&quit_now,

3178

};

3179

task.func(task, queue);

3180

g_assert_true(password_is_read);

3181

g_assert_cmpint((int)password.length, ==, 0);

3182

g_assert_false(quit_now);

3183

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

3184

3185

g_assert_true(epoll_set_does_not_contain(epoll_fd, pipefds[0]));

3186

3187

g_assert_cmpint(close(pipefds[0]), ==, -1);

3188

}

3189

3190

static

3191

void test_read_mandos_client_output_once(__attribute__((unused))

3192

test_fixture *fixture,

3193

__attribute__((unused))

3194

gconstpointer user_data){

3195

__attribute__((cleanup(cleanup_close)))

3196

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3197

g_assert_cmpint(epoll_fd, >=, 0);

3198

3199

int pipefds[2];

3200

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

3201

3202

const char dummy_test_password[] = "dummy test password";

3203

/* Start with a pre-allocated buffer */

3204

__attribute__((cleanup(cleanup_buffer)))

3205

buffer password = {

3206

.data=malloc(sizeof(dummy_test_password)),

3207

.length=0,

3208

.allocated=sizeof(dummy_test_password),

3209

};

3210

g_assert_nonnull(password.data);

3211

if(mlock(password.data, password.allocated) != 0){

3212

g_assert_true(errno == EPERM or errno == ENOMEM);

3213

}

3214

3215

bool password_is_read = false;

3216

bool quit_now = false;

3217

__attribute__((cleanup(cleanup_queue)))

3218

task_queue *queue = create_queue();

3219

g_assert_nonnull(queue);

3220

3221

g_assert_true(sizeof(dummy_test_password) <= PIPE_BUF);

3222

g_assert_cmpint((int)write(pipefds[1], dummy_test_password,

3223

sizeof(dummy_test_password)),

3224

==, (int)sizeof(dummy_test_password));

3225

3226

task_context task = {

3227

.func=read_mandos_client_output,

3228

.epoll_fd=epoll_fd,

3229

.fd=pipefds[0],

3230

.password=&password,

3231

.password_is_read=&password_is_read,

3232

.quit_now=&quit_now,

3233

};

3234

task.func(task, queue);

3235

3236

g_assert_false(password_is_read);

3237

g_assert_cmpint((int)password.length, ==,

3238

(int)sizeof(dummy_test_password));

3239

g_assert_nonnull(password.data);

3240

g_assert_cmpint(memcmp(password.data, dummy_test_password,

3241

sizeof(dummy_test_password)), ==, 0);

3242

3243

g_assert_false(quit_now);

3244

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

3245

3246

g_assert_nonnull(find_matching_task(queue, (task_context){

3247

.func=read_mandos_client_output,

3248

.epoll_fd=epoll_fd,

3249

.fd=pipefds[0],

3250

.password=&password,

3251

.password_is_read=&password_is_read,

3252

.quit_now=&quit_now,

3253

}));

3254

3255

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

3256

EPOLLIN | EPOLLRDHUP));

3257

3258

g_assert_cmpint(close(pipefds[1]), ==, 0);

3259

}

3260

3261

static

3262

void test_read_mandos_client_output_malloc(__attribute__((unused))

3263

test_fixture *fixture,

3264

__attribute__((unused))

3265

gconstpointer user_data){

3266

__attribute__((cleanup(cleanup_close)))

3267

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3268

g_assert_cmpint(epoll_fd, >=, 0);

3269

3270

int pipefds[2];

3271

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

3272

3273

const char dummy_test_password[] = "dummy test password";

3274

/* Start with an empty buffer */

3275

__attribute__((cleanup(cleanup_buffer)))

3276

buffer password = {};

3277

3278

bool password_is_read = false;

3279

bool quit_now = false;

3280

__attribute__((cleanup(cleanup_queue)))

3281

task_queue *queue = create_queue();

3282

g_assert_nonnull(queue);

3283

3284

g_assert_true(sizeof(dummy_test_password) <= PIPE_BUF);

3285

g_assert_cmpint((int)write(pipefds[1], dummy_test_password,

3286

sizeof(dummy_test_password)),

3287

==, (int)sizeof(dummy_test_password));

3288

3289

task_context task = {

3290

.func=read_mandos_client_output,

3291

.epoll_fd=epoll_fd,

3292

.fd=pipefds[0],

3293

.password=&password,

3294

.password_is_read=&password_is_read,

3295

.quit_now=&quit_now,

3296

};

3297

task.func(task, queue);

3298

3299

g_assert_false(password_is_read);

3300

g_assert_cmpint((int)password.length, ==,

3301

(int)sizeof(dummy_test_password));

3302

g_assert_nonnull(password.data);

3303

g_assert_cmpint(memcmp(password.data, dummy_test_password,

3304

sizeof(dummy_test_password)), ==, 0);

3305

3306

g_assert_false(quit_now);

3307

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

3308

3309

g_assert_nonnull(find_matching_task(queue, (task_context){

3310

.func=read_mandos_client_output,

3311

.epoll_fd=epoll_fd,

3312

.fd=pipefds[0],

3313

.password=&password,

3314

.password_is_read=&password_is_read,

3315

.quit_now=&quit_now,

3316

}));

3317

3318

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

3319

EPOLLIN | EPOLLRDHUP));

3320

3321

g_assert_cmpint(close(pipefds[1]), ==, 0);

3322

}

3323

3324

static

3325

void test_read_mandos_client_output_append(__attribute__((unused))

3326

test_fixture *fixture,

3327

__attribute__((unused))

3328

gconstpointer user_data){

3329

__attribute__((cleanup(cleanup_close)))

3330

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3331

g_assert_cmpint(epoll_fd, >=, 0);

3332

3333

int pipefds[2];

3334

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

3335

3336

const char dummy_test_password[] = "dummy test password";

3337

__attribute__((cleanup(cleanup_buffer)))

3338

buffer password = {

3339

.data=malloc(PIPE_BUF),

3340

.length=PIPE_BUF,

3341

.allocated=PIPE_BUF,

3342

};

3343

g_assert_nonnull(password.data);

3344

if(mlock(password.data, password.allocated) != 0){

3345

g_assert_true(errno == EPERM or errno == ENOMEM);

3346

}

3347

3348

memset(password.data, 'x', PIPE_BUF);

3349

char password_expected[PIPE_BUF];

3350

memcpy(password_expected, password.data, PIPE_BUF);

3351

3352

bool password_is_read = false;

3353

bool quit_now = false;

3354

__attribute__((cleanup(cleanup_queue)))

3355

task_queue *queue = create_queue();

3356

g_assert_nonnull(queue);

3357

3358

g_assert_true(sizeof(dummy_test_password) <= PIPE_BUF);

3359

g_assert_cmpint((int)write(pipefds[1], dummy_test_password,

3360

sizeof(dummy_test_password)),

3361

==, (int)sizeof(dummy_test_password));

3362

3363

task_context task = {

3364

.func=read_mandos_client_output,

3365

.epoll_fd=epoll_fd,

3366

.fd=pipefds[0],

3367

.password=&password,

3368

.password_is_read=&password_is_read,

3369

.quit_now=&quit_now,

3370

};

3371

task.func(task, queue);

3372

3373

g_assert_false(password_is_read);

3374

g_assert_cmpint((int)password.length, ==,

3375

PIPE_BUF + sizeof(dummy_test_password));

3376

g_assert_nonnull(password.data);

3377

g_assert_cmpint(memcmp(password_expected, password.data, PIPE_BUF),

3378

==, 0);

3379

g_assert_cmpint(memcmp(password.data + PIPE_BUF,

3380

dummy_test_password,

3381

sizeof(dummy_test_password)), ==, 0);

3382

g_assert_false(quit_now);

3383

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

3384

3385

g_assert_nonnull(find_matching_task(queue, (task_context){

3386

.func=read_mandos_client_output,

3387

.epoll_fd=epoll_fd,

3388

.fd=pipefds[0],

3389

.password=&password,

3390

.password_is_read=&password_is_read,

3391

.quit_now=&quit_now,

3392

}));

3393

3394

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

3395

EPOLLIN | EPOLLRDHUP));

3396

}

3397

3398

static char *make_temporary_directory(void);

3399

3400

static void test_add_inotify_dir_watch(__attribute__((unused))

3401

test_fixture *fixture,

3402

__attribute__((unused))

3403

gconstpointer user_data){

3404

__attribute__((cleanup(cleanup_close)))

3405

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3406

g_assert_cmpint(epoll_fd, >=, 0);

3407

__attribute__((cleanup(cleanup_queue)))

3408

task_queue *queue = create_queue();

3409

g_assert_nonnull(queue);

3410

__attribute__((cleanup(string_set_clear)))

3411

string_set cancelled_filenames = {};

3412

const mono_microsecs current_time = 0;

3413

3414

bool quit_now = false;

3415

buffer password = {};

3416

bool mandos_client_exited = false;

3417

bool password_is_read = false;

3418

3419

__attribute__((cleanup(cleanup_string)))

3420

char *tempdir = make_temporary_directory();

3421

g_assert_nonnull(tempdir);

3422

3423

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3424

&password, tempdir,

3425

&cancelled_filenames,

3426

&current_time,

3427

&mandos_client_exited,

3428

&password_is_read));

3429

3430

g_assert_cmpuint((unsigned int)queue->length, >, 0);

3431

3432

const task_context *const added_read_task

3433

= find_matching_task(queue, (task_context){

3434

.func=read_inotify_event,

3435

.epoll_fd=epoll_fd,

3436

.quit_now=&quit_now,

3437

.password=&password,

3438

.filename=tempdir,

3439

.cancelled_filenames=&cancelled_filenames,

3440

.current_time=&current_time,

3441

.mandos_client_exited=&mandos_client_exited,

3442

.password_is_read=&password_is_read,

3443

});

3444

g_assert_nonnull(added_read_task);

3445

3446

g_assert_cmpint(added_read_task->fd, >, 2);

3447

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

3448

g_assert_true(epoll_set_contains(added_read_task->epoll_fd,

3449

added_read_task->fd,

3450

EPOLLIN | EPOLLRDHUP));

3451

3452

g_assert_cmpint(rmdir(tempdir), ==, 0);

3453

}

3454

3455

static char *make_temporary_directory(void){

3456

char *name = strdup("/tmp/mandosXXXXXX");

3457

g_assert_nonnull(name);

3458

char *result = mkdtemp(name);

3459

if(result == NULL){

3460

free(name);

3461

}

3462

return result;

3463

}

3464

3465

static void test_add_inotify_dir_watch_fail(__attribute__((unused))

3466

test_fixture *fixture,

3467

__attribute__((unused))

3468

gconstpointer user_data){

3469

__attribute__((cleanup(cleanup_close)))

3470

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3471

g_assert_cmpint(epoll_fd, >=, 0);

3472

__attribute__((cleanup(cleanup_queue)))

3473

task_queue *queue = create_queue();

3474

g_assert_nonnull(queue);

3475

__attribute__((cleanup(string_set_clear)))

3476

string_set cancelled_filenames = {};

3477

const mono_microsecs current_time = 0;

3478

3479

bool quit_now = false;

3480

buffer password = {};

3481

bool mandos_client_exited = false;

3482

bool password_is_read = false;

3483

3484

const char nonexistent_dir[] = "/nonexistent";

3485

3486

FILE *real_stderr = stderr;

3487

FILE *devnull = fopen("/dev/null", "we");

3488

g_assert_nonnull(devnull);

3489

stderr = devnull;

3490

g_assert_false(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3491

&password, nonexistent_dir,

3492

&cancelled_filenames,

3493

&current_time,

3494

&mandos_client_exited,

3495

&password_is_read));

3496

stderr = real_stderr;

3497

g_assert_cmpint(fclose(devnull), ==, 0);

3498

3499

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

3500

}

3501

3502

static void test_add_inotify_dir_watch_nondir(__attribute__((unused))

3503

test_fixture *fixture,

3504

__attribute__((unused))

3505

gconstpointer

3506

user_data){

3507

__attribute__((cleanup(cleanup_close)))

3508

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3509

g_assert_cmpint(epoll_fd, >=, 0);

3510

__attribute__((cleanup(cleanup_queue)))

3511

task_queue *queue = create_queue();

3512

g_assert_nonnull(queue);

3513

__attribute__((cleanup(string_set_clear)))

3514

string_set cancelled_filenames = {};

3515

const mono_microsecs current_time = 0;

3516

3517

bool quit_now = false;

3518

buffer password = {};

3519

bool mandos_client_exited = false;

3520

bool password_is_read = false;

3521

3522

const char not_a_directory[] = "/dev/tty";

3523

3524

FILE *real_stderr = stderr;

3525

FILE *devnull = fopen("/dev/null", "we");

3526

g_assert_nonnull(devnull);

3527

stderr = devnull;

3528

g_assert_false(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3529

&password, not_a_directory,

3530

&cancelled_filenames,

3531

&current_time,

3532

&mandos_client_exited,

3533

&password_is_read));

3534

stderr = real_stderr;

3535

g_assert_cmpint(fclose(devnull), ==, 0);

3536

3537

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

3538

}

3539

3540

static void test_add_inotify_dir_watch_EAGAIN(__attribute__((unused))

3541

test_fixture *fixture,

3542

__attribute__((unused))

3543

gconstpointer

3544

user_data){

3545

__attribute__((cleanup(cleanup_close)))

3546

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3547

g_assert_cmpint(epoll_fd, >=, 0);

3548

__attribute__((cleanup(cleanup_queue)))

3549

task_queue *queue = create_queue();

3550

g_assert_nonnull(queue);

3551

__attribute__((cleanup(string_set_clear)))

3552

string_set cancelled_filenames = {};

3553

const mono_microsecs current_time = 0;

3554

3555

bool quit_now = false;

3556

buffer password = {};

3557

bool mandos_client_exited = false;

3558

bool password_is_read = false;

3559

3560

__attribute__((cleanup(cleanup_string)))

3561

char *tempdir = make_temporary_directory();

3562

g_assert_nonnull(tempdir);

3563

3564

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3565

&password, tempdir,

3566

&cancelled_filenames,

3567

&current_time,

3568

&mandos_client_exited,

3569

&password_is_read));

3570

3571

g_assert_cmpuint((unsigned int)queue->length, >, 0);

3572

3573

const task_context *const added_read_task

3574

= find_matching_task(queue,

3575

(task_context){ .func=read_inotify_event });

3576

g_assert_nonnull(added_read_task);

3577

3578

g_assert_cmpint(added_read_task->fd, >, 2);

3579

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

3580

3581

/* "sufficient to read at least one event." - inotify(7) */

3582

const size_t ievent_size = (sizeof(struct inotify_event)

3583

+ NAME_MAX + 1);

3584

struct inotify_event *ievent = malloc(ievent_size);

3585

g_assert_nonnull(ievent);

3586

3587

g_assert_cmpint(read(added_read_task->fd, ievent, ievent_size), ==,

3588

-1);

3589

g_assert_cmpint(errno, ==, EAGAIN);

3590

3591

free(ievent);

3592

3593

g_assert_cmpint(rmdir(tempdir), ==, 0);

3594

}

3595

3596

static char *make_temporary_file_in_directory(const char

3597

*const dir);

3598

3599

static

3600

void test_add_inotify_dir_watch_IN_CLOSE_WRITE(__attribute__((unused))

3601

test_fixture *fixture,

3602

__attribute__((unused))

3603

gconstpointer

3604

user_data){

3605

__attribute__((cleanup(cleanup_close)))

3606

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3607

g_assert_cmpint(epoll_fd, >=, 0);

3608

__attribute__((cleanup(cleanup_queue)))

3609

task_queue *queue = create_queue();

3610

g_assert_nonnull(queue);

3611

__attribute__((cleanup(string_set_clear)))

3612

string_set cancelled_filenames = {};

3613

const mono_microsecs current_time = 0;

3614

3615

bool quit_now = false;

3616

buffer password = {};

3617

bool mandos_client_exited = false;

3618

bool password_is_read = false;

3619

3620

__attribute__((cleanup(cleanup_string)))

3621

char *tempdir = make_temporary_directory();

3622

g_assert_nonnull(tempdir);

3623

3624

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3625

&password, tempdir,

3626

&cancelled_filenames,

3627

&current_time,

3628

&mandos_client_exited,

3629

&password_is_read));

3630

3631

g_assert_cmpuint((unsigned int)queue->length, >, 0);

3632

3633

const task_context *const added_read_task

3634

= find_matching_task(queue,

3635

(task_context){ .func=read_inotify_event });

3636

g_assert_nonnull(added_read_task);

3637

3638

g_assert_cmpint(added_read_task->fd, >, 2);

3639

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

3640

3641

__attribute__((cleanup(cleanup_string)))

3642

char *filename = make_temporary_file_in_directory(tempdir);

3643

g_assert_nonnull(filename);

3644

3645

/* "sufficient to read at least one event." - inotify(7) */

3646

const size_t ievent_size = (sizeof(struct inotify_event)

3647

+ NAME_MAX + 1);

3648

struct inotify_event *ievent = malloc(ievent_size);

3649

g_assert_nonnull(ievent);

3650

3651

ssize_t read_size = 0;

3652

read_size = read(added_read_task->fd, ievent, ievent_size);

3653

3654

g_assert_cmpint((int)read_size, >, 0);

3655

g_assert_true(ievent->mask & IN_CLOSE_WRITE);

3656

g_assert_cmpstr(ievent->name, ==, basename(filename));

3657

3658

free(ievent);

3659

3660

g_assert_cmpint(unlink(filename), ==, 0);

3661

g_assert_cmpint(rmdir(tempdir), ==, 0);

3662

}

3663

3664

static char *make_temporary_prefixed_file_in_directory(const char

3665

*const prefix,

3666

const char

3667

*const dir){

3668

char *filename = NULL;

3669

g_assert_cmpint(asprintf(&filename, "%s/%sXXXXXX", dir, prefix),

3670

>, 0);

3671

g_assert_nonnull(filename);

3672

const int fd = mkostemp(filename, O_CLOEXEC);

3673

g_assert_cmpint(fd, >=, 0);

3674

g_assert_cmpint(close(fd), ==, 0);

3675

return filename;

3676

}

3677

3678

static char *make_temporary_file_in_directory(const char

3679

*const dir){

3680

return make_temporary_prefixed_file_in_directory("temp", dir);

3681

}

3682

3683

static

3684

void test_add_inotify_dir_watch_IN_MOVED_TO(__attribute__((unused))

3685

test_fixture *fixture,

3686

__attribute__((unused))

3687

gconstpointer user_data){

3688

__attribute__((cleanup(cleanup_close)))

3689

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3690

g_assert_cmpint(epoll_fd, >=, 0);

3691

__attribute__((cleanup(cleanup_queue)))

3692

task_queue *queue = create_queue();

3693

g_assert_nonnull(queue);

3694

__attribute__((cleanup(string_set_clear)))

3695

string_set cancelled_filenames = {};

3696

const mono_microsecs current_time = 0;

3697

3698

bool quit_now = false;

3699

buffer password = {};

3700

bool mandos_client_exited = false;

3701

bool password_is_read = false;

3702

3703

__attribute__((cleanup(cleanup_string)))

3704

char *watchdir = make_temporary_directory();

3705

g_assert_nonnull(watchdir);

3706

3707

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3708

&password, watchdir,

3709

&cancelled_filenames,

3710

&current_time,

3711

&mandos_client_exited,

3712

&password_is_read));

3713

3714

g_assert_cmpuint((unsigned int)queue->length, >, 0);

3715

3716

const task_context *const added_read_task

3717

= find_matching_task(queue,

3718

(task_context){ .func=read_inotify_event });

3719

g_assert_nonnull(added_read_task);

3720

3721

g_assert_cmpint(added_read_task->fd, >, 2);

3722

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

3723

3724

char *sourcedir = make_temporary_directory();

3725

g_assert_nonnull(sourcedir);

3726

3727

__attribute__((cleanup(cleanup_string)))

3728

char *filename = make_temporary_file_in_directory(sourcedir);

3729

g_assert_nonnull(filename);

3730

3731

__attribute__((cleanup(cleanup_string)))

3732

char *targetfilename = NULL;

3733

g_assert_cmpint(asprintf(&targetfilename, "%s/%s", watchdir,

3734

basename(filename)), >, 0);

3735

g_assert_nonnull(targetfilename);

3736

3737

g_assert_cmpint(rename(filename, targetfilename), ==, 0);

3738

g_assert_cmpint(rmdir(sourcedir), ==, 0);

3739

free(sourcedir);

3740

3741

/* "sufficient to read at least one event." - inotify(7) */

3742

const size_t ievent_size = (sizeof(struct inotify_event)

3743

+ NAME_MAX + 1);

3744

struct inotify_event *ievent = malloc(ievent_size);

3745

g_assert_nonnull(ievent);

3746

3747

ssize_t read_size = read(added_read_task->fd, ievent, ievent_size);

3748

3749

g_assert_cmpint((int)read_size, >, 0);

3750

g_assert_true(ievent->mask & IN_MOVED_TO);

3751

g_assert_cmpstr(ievent->name, ==, basename(targetfilename));

3752

3753

free(ievent);

3754

3755

g_assert_cmpint(unlink(targetfilename), ==, 0);

3756

g_assert_cmpint(rmdir(watchdir), ==, 0);

3757

}

3758

3759

static

3760

void test_add_inotify_dir_watch_IN_MOVED_FROM(__attribute__((unused))

3761

test_fixture *fixture,

3762

__attribute__((unused))

3763

gconstpointer

3764

user_data){

3765

__attribute__((cleanup(cleanup_close)))

3766

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3767

g_assert_cmpint(epoll_fd, >=, 0);

3768

__attribute__((cleanup(cleanup_queue)))

3769

task_queue *queue = create_queue();

3770

g_assert_nonnull(queue);

3771

__attribute__((cleanup(string_set_clear)))

3772

string_set cancelled_filenames = {};

3773

const mono_microsecs current_time = 0;

3774

3775

bool quit_now = false;

3776

buffer password = {};

3777

bool mandos_client_exited = false;

3778

bool password_is_read = false;

3779

3780

__attribute__((cleanup(cleanup_string)))

3781

char *tempdir = make_temporary_directory();

3782

g_assert_nonnull(tempdir);

3783

3784

__attribute__((cleanup(cleanup_string)))

3785

char *tempfilename = make_temporary_file_in_directory(tempdir);

3786

g_assert_nonnull(tempfilename);

3787

3788

__attribute__((cleanup(cleanup_string)))

3789

char *targetdir = make_temporary_directory();

3790

g_assert_nonnull(targetdir);

3791

3792

__attribute__((cleanup(cleanup_string)))

3793

char *targetfilename = NULL;

3794

g_assert_cmpint(asprintf(&targetfilename, "%s/%s", targetdir,

3795

basename(tempfilename)), >, 0);

3796

g_assert_nonnull(targetfilename);

3797

3798

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3799

&password, tempdir,

3800

&cancelled_filenames,

3801

&current_time,

3802

&mandos_client_exited,

3803

&password_is_read));

3804

3805

g_assert_cmpint(rename(tempfilename, targetfilename), ==, 0);

3806

3807

const task_context *const added_read_task

3808

= find_matching_task(queue,

3809

(task_context){ .func=read_inotify_event });

3810

g_assert_nonnull(added_read_task);

3811

3812

/* "sufficient to read at least one event." - inotify(7) */

3813

const size_t ievent_size = (sizeof(struct inotify_event)

3814

+ NAME_MAX + 1);

3815

struct inotify_event *ievent = malloc(ievent_size);

3816

g_assert_nonnull(ievent);

3817

3818

ssize_t read_size = read(added_read_task->fd, ievent, ievent_size);

3819

3820

g_assert_cmpint((int)read_size, >, 0);

3821

g_assert_true(ievent->mask & IN_MOVED_FROM);

3822

g_assert_cmpstr(ievent->name, ==, basename(tempfilename));

3823

3824

free(ievent);

3825

3826

g_assert_cmpint(unlink(targetfilename), ==, 0);

3827

g_assert_cmpint(rmdir(targetdir), ==, 0);

3828

g_assert_cmpint(rmdir(tempdir), ==, 0);

3829

}

3830

3831

static

3832

void test_add_inotify_dir_watch_IN_DELETE(__attribute__((unused))

3833

test_fixture *fixture,

3834

__attribute__((unused))

3835

gconstpointer user_data){

3836

__attribute__((cleanup(cleanup_close)))

3837

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3838

g_assert_cmpint(epoll_fd, >=, 0);

3839

__attribute__((cleanup(cleanup_queue)))

3840

task_queue *queue = create_queue();

3841

g_assert_nonnull(queue);

3842

__attribute__((cleanup(string_set_clear)))

3843

string_set cancelled_filenames = {};

3844

const mono_microsecs current_time = 0;

3845

3846

bool quit_now = false;

3847

buffer password = {};

3848

bool mandos_client_exited = false;

3849

bool password_is_read = false;

3850

3851

__attribute__((cleanup(cleanup_string)))

3852

char *tempdir = make_temporary_directory();

3853

g_assert_nonnull(tempdir);

3854

3855

__attribute__((cleanup(cleanup_string)))

3856

char *tempfile = make_temporary_file_in_directory(tempdir);

3857

g_assert_nonnull(tempfile);

3858

3859

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3860

&password, tempdir,

3861

&cancelled_filenames,

3862

&current_time,

3863

&mandos_client_exited,

3864

&password_is_read));

3865

g_assert_cmpint(unlink(tempfile), ==, 0);

3866

3867

g_assert_cmpuint((unsigned int)queue->length, >, 0);

3868

3869

const task_context *const added_read_task

3870

= find_matching_task(queue,

3871

(task_context){ .func=read_inotify_event });

3872

g_assert_nonnull(added_read_task);

3873

3874

g_assert_cmpint(added_read_task->fd, >, 2);

3875

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

3876

3877

/* "sufficient to read at least one event." - inotify(7) */

3878

const size_t ievent_size = (sizeof(struct inotify_event)

3879

+ NAME_MAX + 1);

3880

struct inotify_event *ievent = malloc(ievent_size);

3881

g_assert_nonnull(ievent);

3882

3883

ssize_t read_size = 0;

3884

read_size = read(added_read_task->fd, ievent, ievent_size);

3885

3886

g_assert_cmpint((int)read_size, >, 0);

3887

g_assert_true(ievent->mask & IN_DELETE);

3888

g_assert_cmpstr(ievent->name, ==, basename(tempfile));

3889

3890

free(ievent);

3891

3892

g_assert_cmpint(rmdir(tempdir), ==, 0);

3893

}

3894

3895

static

3896

void test_add_inotify_dir_watch_IN_EXCL_UNLINK(__attribute__((unused))

3897

test_fixture *fixture,

3898

__attribute__((unused))

3899

gconstpointer

3900

user_data){

3901

__attribute__((cleanup(cleanup_close)))

3902

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3903

g_assert_cmpint(epoll_fd, >=, 0);

3904

__attribute__((cleanup(cleanup_queue)))

3905

task_queue *queue = create_queue();

3906

g_assert_nonnull(queue);

3907

__attribute__((cleanup(string_set_clear)))

3908

string_set cancelled_filenames = {};

3909

const mono_microsecs current_time = 0;

3910

3911

bool quit_now = false;

3912

buffer password = {};

3913

bool mandos_client_exited = false;

3914

bool password_is_read = false;

3915

3916

__attribute__((cleanup(cleanup_string)))

3917

char *tempdir = make_temporary_directory();

3918

g_assert_nonnull(tempdir);

3919

3920

__attribute__((cleanup(cleanup_string)))

3921

char *tempfile = make_temporary_file_in_directory(tempdir);

3922

g_assert_nonnull(tempfile);

3923

int tempfile_fd = open(tempfile, O_WRONLY | O_CLOEXEC | O_NOCTTY

3924

| O_NOFOLLOW);

3925

g_assert_cmpint(tempfile_fd, >, 2);

3926

3927

g_assert_true(add_inotify_dir_watch(queue, epoll_fd, &quit_now,

3928

&password, tempdir,

3929

&cancelled_filenames,

3930

&current_time,

3931

&mandos_client_exited,

3932

&password_is_read));

3933

g_assert_cmpint(unlink(tempfile), ==, 0);

3934

3935

g_assert_cmpuint((unsigned int)queue->length, >, 0);

3936

3937

const task_context *const added_read_task

3938

= find_matching_task(queue,

3939

(task_context){ .func=read_inotify_event });

3940

g_assert_nonnull(added_read_task);

3941

3942

g_assert_cmpint(added_read_task->fd, >, 2);

3943

g_assert_true(fd_has_cloexec_and_nonblock(added_read_task->fd));

3944

3945

/* "sufficient to read at least one event." - inotify(7) */

3946

const size_t ievent_size = (sizeof(struct inotify_event)

3947

+ NAME_MAX + 1);

3948

struct inotify_event *ievent = malloc(ievent_size);

3949

g_assert_nonnull(ievent);

3950

3951

ssize_t read_size = 0;

3952

read_size = read(added_read_task->fd, ievent, ievent_size);

3953

3954

g_assert_cmpint((int)read_size, >, 0);

3955

g_assert_true(ievent->mask & IN_DELETE);

3956

g_assert_cmpstr(ievent->name, ==, basename(tempfile));

3957

3958

g_assert_cmpint(close(tempfile_fd), ==, 0);

3959

3960

/* IN_EXCL_UNLINK should make the closing of the previously unlinked

3961

file not appear as an ievent, so we should not see it now. */

3962

read_size = read(added_read_task->fd, ievent, ievent_size);

3963

g_assert_cmpint((int)read_size, ==, -1);

3964

g_assert_true(errno == EAGAIN);

3965

3966

free(ievent);

3967

3968

g_assert_cmpint(rmdir(tempdir), ==, 0);

3969

}

3970

3971

static void test_read_inotify_event_readerror(__attribute__((unused))

3972

test_fixture *fixture,

3973

__attribute__((unused))

3974

gconstpointer

3975

user_data){

3976

__attribute__((cleanup(cleanup_close)))

3977

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

3978

g_assert_cmpint(epoll_fd, >=, 0);

3979

const mono_microsecs current_time = 0;

3980

3981

/* Reading /proc/self/mem from offset 0 will always result in EIO */

3982

const int fd = open("/proc/self/mem",

3983

O_RDONLY | O_CLOEXEC | O_NOCTTY);

3984

3985

bool quit_now = false;

3986

__attribute__((cleanup(cleanup_queue)))

3987

task_queue *queue = create_queue();

3988

g_assert_nonnull(queue);

3989

3990

task_context task = {

3991

.func=read_inotify_event,

3992

.epoll_fd=epoll_fd,

3993

.fd=fd,

3994

.quit_now=&quit_now,

3995

.filename=strdup("/nonexistent"),

3996

.cancelled_filenames = &(string_set){},

3997

.notafter=0,

3998

.current_time=&current_time,

3999

};

4000

g_assert_nonnull(task.filename);

4001

run_task_with_stderr_to_dev_null(task, queue);

4002

g_assert_true(quit_now);

4003

g_assert_true(queue->next_run == 0);

4004

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

4005

4006

g_assert_true(epoll_set_does_not_contain(epoll_fd, fd));

4007

4008

g_assert_cmpint(close(fd), ==, -1);

4009

}

4010

4011

static void test_read_inotify_event_bad_epoll(__attribute__((unused))

4012

test_fixture *fixture,

4013

__attribute__((unused))

4014

gconstpointer

4015

user_data){

4016

const mono_microsecs current_time = 17;

4017

4018

int pipefds[2];

4019

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

4020

const int epoll_fd = pipefds[0]; /* This will obviously fail */

4021

4022

bool quit_now = false;

4023

buffer password = {};

4024

bool mandos_client_exited = false;

4025

bool password_is_read = false;

4026

__attribute__((cleanup(cleanup_queue)))

4027

task_queue *queue = create_queue();

4028

g_assert_nonnull(queue);

4029

4030

task_context task = {

4031

.func=read_inotify_event,

4032

.epoll_fd=epoll_fd,

4033

.fd=pipefds[0],

4034

.quit_now=&quit_now,

4035

.password=&password,

4036

.filename=strdup("/nonexistent"),

4037

.cancelled_filenames = &(string_set){},

4038

.notafter=0,

4039

.current_time=&current_time,

4040

.mandos_client_exited=&mandos_client_exited,

4041

.password_is_read=&password_is_read,

4042

};

4043

g_assert_nonnull(task.filename);

4044

run_task_with_stderr_to_dev_null(task, queue);

4045

4046

g_assert_nonnull(find_matching_task(queue, task));

4047

g_assert_true(queue->next_run == 1000000 + current_time);

4048

4049

g_assert_cmpint(close(pipefds[0]), ==, 0);

4050

g_assert_cmpint(close(pipefds[1]), ==, 0);

4051

}

4052

4053

static void test_read_inotify_event_nodata(__attribute__((unused))

4054

test_fixture *fixture,

4055

__attribute__((unused))

4056

gconstpointer user_data){

4057

__attribute__((cleanup(cleanup_close)))

4058

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4059

g_assert_cmpint(epoll_fd, >=, 0);

4060

const mono_microsecs current_time = 0;

4061

4062

int pipefds[2];

4063

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

4064

4065

bool quit_now = false;

4066

buffer password = {};

4067

bool mandos_client_exited = false;

4068

bool password_is_read = false;

4069

__attribute__((cleanup(cleanup_queue)))

4070

task_queue *queue = create_queue();

4071

g_assert_nonnull(queue);

4072

4073

task_context task = {

4074

.func=read_inotify_event,

4075

.epoll_fd=epoll_fd,

4076

.fd=pipefds[0],

4077

.quit_now=&quit_now,

4078

.password=&password,

4079

.filename=strdup("/nonexistent"),

4080

.cancelled_filenames = &(string_set){},

4081

.notafter=0,

4082

.current_time=&current_time,

4083

.mandos_client_exited=&mandos_client_exited,

4084

.password_is_read=&password_is_read,

4085

};

4086

g_assert_nonnull(task.filename);

4087

task.func(task, queue);

4088

g_assert_false(quit_now);

4089

g_assert_true(queue->next_run == 0);

4090

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

4091

4092

g_assert_nonnull(find_matching_task(queue, (task_context){

4093

.func=read_inotify_event,

4094

.epoll_fd=epoll_fd,

4095

.fd=pipefds[0],

4096

.quit_now=&quit_now,

4097

.password=&password,

4098

.filename=task.filename,

4099

.cancelled_filenames=task.cancelled_filenames,

4100

.current_time=&current_time,

4101

.mandos_client_exited=&mandos_client_exited,

4102

.password_is_read=&password_is_read,

4103

}));

4104

4105

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4106

EPOLLIN | EPOLLRDHUP));

4107

4108

g_assert_cmpint(close(pipefds[1]), ==, 0);

4109

}

4110

4111

static void test_read_inotify_event_eof(__attribute__((unused))

4112

test_fixture *fixture,

4113

__attribute__((unused))

4114

gconstpointer user_data){

4115

__attribute__((cleanup(cleanup_close)))

4116

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4117

g_assert_cmpint(epoll_fd, >=, 0);

4118

const mono_microsecs current_time = 0;

4119

4120

int pipefds[2];

4121

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

4122

g_assert_cmpint(close(pipefds[1]), ==, 0);

4123

4124

bool quit_now = false;

4125

buffer password = {};

4126

__attribute__((cleanup(cleanup_queue)))

4127

task_queue *queue = create_queue();

4128

g_assert_nonnull(queue);

4129

4130

task_context task = {

4131

.func=read_inotify_event,

4132

.epoll_fd=epoll_fd,

4133

.fd=pipefds[0],

4134

.quit_now=&quit_now,

4135

.password=&password,

4136

.filename=strdup("/nonexistent"),

4137

.cancelled_filenames = &(string_set){},

4138

.notafter=0,

4139

.current_time=&current_time,

4140

};

4141

run_task_with_stderr_to_dev_null(task, queue);

4142

g_assert_true(quit_now);

4143

g_assert_true(queue->next_run == 0);

4144

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

4145

4146

g_assert_true(epoll_set_does_not_contain(epoll_fd, pipefds[0]));

4147

4148

g_assert_cmpint(close(pipefds[0]), ==, -1);

4149

}

4150

4151

static

4152

void test_read_inotify_event_IN_CLOSE_WRITE(__attribute__((unused))

4153

test_fixture *fixture,

4154

__attribute__((unused))

4155

gconstpointer user_data){

4156

__attribute__((cleanup(cleanup_close)))

4157

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4158

g_assert_cmpint(epoll_fd, >=, 0);

4159

const mono_microsecs current_time = 0;

4160

4161

int pipefds[2];

4162

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

4163

4164

/* "sufficient to read at least one event." - inotify(7) */

4165

const size_t ievent_max_size = (sizeof(struct inotify_event)

4166

+ NAME_MAX + 1);

4167

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4168

struct {

4169

struct inotify_event event;

4170

char name_buffer[NAME_MAX + 1];

4171

} ievent_buffer;

4172

struct inotify_event *const ievent = &ievent_buffer.event;

4173

4174

const char dummy_file_name[] = "ask.dummy_file_name";

4175

ievent->mask = IN_CLOSE_WRITE;

4176

ievent->len = sizeof(dummy_file_name);

4177

memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));

4178

const size_t ievent_size = (sizeof(struct inotify_event)

4179

+ sizeof(dummy_file_name));

4180

g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),

4181

==, ievent_size);

4182

g_assert_cmpint(close(pipefds[1]), ==, 0);

4183

4184

bool quit_now = false;

4185

buffer password = {};

4186

bool mandos_client_exited = false;

4187

bool password_is_read = false;

4188

__attribute__((cleanup(cleanup_queue)))

4189

task_queue *queue = create_queue();

4190

g_assert_nonnull(queue);

4191

4192

task_context task = {

4193

.func=read_inotify_event,

4194

.epoll_fd=epoll_fd,

4195

.fd=pipefds[0],

4196

.quit_now=&quit_now,

4197

.password=&password,

4198

.filename=strdup("/nonexistent"),

4199

.cancelled_filenames = &(string_set){},

4200

.notafter=0,

4201

.current_time=&current_time,

4202

.mandos_client_exited=&mandos_client_exited,

4203

.password_is_read=&password_is_read,

4204

};

4205

task.func(task, queue);

4206

g_assert_false(quit_now);

4207

g_assert_true(queue->next_run != 0);

4208

g_assert_cmpuint((unsigned int)queue->length, >=, 1);

4209

4210

g_assert_nonnull(find_matching_task(queue, (task_context){

4211

.func=read_inotify_event,

4212

.epoll_fd=epoll_fd,

4213

.fd=pipefds[0],

4214

.quit_now=&quit_now,

4215

.password=&password,

4216

.filename=task.filename,

4217

.cancelled_filenames=task.cancelled_filenames,

4218

.current_time=&current_time,

4219

.mandos_client_exited=&mandos_client_exited,

4220

.password_is_read=&password_is_read,

4221

}));

4222

4223

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4224

EPOLLIN | EPOLLRDHUP));

4225

4226

g_assert_cmpuint((unsigned int)queue->length, >=, 2);

4227

4228

__attribute__((cleanup(cleanup_string)))

4229

char *filename = NULL;

4230

g_assert_cmpint(asprintf(&filename, "%s/%s", task.filename,

4231

dummy_file_name), >, 0);

4232

g_assert_nonnull(filename);

4233

g_assert_nonnull(find_matching_task(queue, (task_context){

4234

.func=open_and_parse_question,

4235

.epoll_fd=epoll_fd,

4236

.filename=filename,

4237

.question_filename=filename,

4238

.password=&password,

4239

.cancelled_filenames=task.cancelled_filenames,

4240

.current_time=&current_time,

4241

.mandos_client_exited=&mandos_client_exited,

4242

.password_is_read=&password_is_read,

4243

}));

4244

}

4245

4246

static

4247

void test_read_inotify_event_IN_MOVED_TO(__attribute__((unused))

4248

test_fixture *fixture,

4249

__attribute__((unused))

4250

gconstpointer user_data){

4251

__attribute__((cleanup(cleanup_close)))

4252

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4253

g_assert_cmpint(epoll_fd, >=, 0);

4254

const mono_microsecs current_time = 0;

4255

4256

int pipefds[2];

4257

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

4258

4259

/* "sufficient to read at least one event." - inotify(7) */

4260

const size_t ievent_max_size = (sizeof(struct inotify_event)

4261

+ NAME_MAX + 1);

4262

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4263

struct {

4264

struct inotify_event event;

4265

char name_buffer[NAME_MAX + 1];

4266

} ievent_buffer;

4267

struct inotify_event *const ievent = &ievent_buffer.event;

4268

4269

const char dummy_file_name[] = "ask.dummy_file_name";

4270

ievent->mask = IN_MOVED_TO;

4271

ievent->len = sizeof(dummy_file_name);

4272

memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));

4273

const size_t ievent_size = (sizeof(struct inotify_event)

4274

+ sizeof(dummy_file_name));

4275

g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),

4276

==, ievent_size);

4277

g_assert_cmpint(close(pipefds[1]), ==, 0);

4278

4279

bool quit_now = false;

4280

buffer password = {};

4281

bool mandos_client_exited = false;

4282

bool password_is_read = false;

4283

__attribute__((cleanup(cleanup_queue)))

4284

task_queue *queue = create_queue();

4285

g_assert_nonnull(queue);

4286

4287

task_context task = {

4288

.func=read_inotify_event,

4289

.epoll_fd=epoll_fd,

4290

.fd=pipefds[0],

4291

.quit_now=&quit_now,

4292

.password=&password,

4293

.filename=strdup("/nonexistent"),

4294

.cancelled_filenames = &(string_set){},

4295

.notafter=0,

4296

.current_time=&current_time,

4297

.mandos_client_exited=&mandos_client_exited,

4298

.password_is_read=&password_is_read,

4299

};

4300

task.func(task, queue);

4301

g_assert_false(quit_now);

4302

g_assert_true(queue->next_run != 0);

4303

g_assert_cmpuint((unsigned int)queue->length, >=, 1);

4304

4305

g_assert_nonnull(find_matching_task(queue, (task_context){

4306

.func=read_inotify_event,

4307

.epoll_fd=epoll_fd,

4308

.fd=pipefds[0],

4309

.quit_now=&quit_now,

4310

.password=&password,

4311

.filename=task.filename,

4312

.cancelled_filenames=task.cancelled_filenames,

4313

.current_time=&current_time,

4314

.mandos_client_exited=&mandos_client_exited,

4315

.password_is_read=&password_is_read,

4316

}));

4317

4318

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4319

EPOLLIN | EPOLLRDHUP));

4320

4321

g_assert_cmpuint((unsigned int)queue->length, >=, 2);

4322

4323

__attribute__((cleanup(cleanup_string)))

4324

char *filename = NULL;

4325

g_assert_cmpint(asprintf(&filename, "%s/%s", task.filename,

4326

dummy_file_name), >, 0);

4327

g_assert_nonnull(filename);

4328

g_assert_nonnull(find_matching_task(queue, (task_context){

4329

.func=open_and_parse_question,

4330

.epoll_fd=epoll_fd,

4331

.filename=filename,

4332

.question_filename=filename,

4333

.password=&password,

4334

.cancelled_filenames=task.cancelled_filenames,

4335

.current_time=&current_time,

4336

.mandos_client_exited=&mandos_client_exited,

4337

.password_is_read=&password_is_read,

4338

}));

4339

}

4340

4341

static

4342

void test_read_inotify_event_IN_MOVED_FROM(__attribute__((unused))

4343

test_fixture *fixture,

4344

__attribute__((unused))

4345

gconstpointer user_data){

4346

__attribute__((cleanup(cleanup_close)))

4347

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4348

g_assert_cmpint(epoll_fd, >=, 0);

4349

__attribute__((cleanup(string_set_clear)))

4350

string_set cancelled_filenames = {};

4351

const mono_microsecs current_time = 0;

4352

4353

int pipefds[2];

4354

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

4355

4356

/* "sufficient to read at least one event." - inotify(7) */

4357

const size_t ievent_max_size = (sizeof(struct inotify_event)

4358

+ NAME_MAX + 1);

4359

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4360

struct {

4361

struct inotify_event event;

4362

char name_buffer[NAME_MAX + 1];

4363

} ievent_buffer;

4364

struct inotify_event *const ievent = &ievent_buffer.event;

4365

4366

const char dummy_file_name[] = "ask.dummy_file_name";

4367

ievent->mask = IN_MOVED_FROM;

4368

ievent->len = sizeof(dummy_file_name);

4369

memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));

4370

const size_t ievent_size = (sizeof(struct inotify_event)

4371

+ sizeof(dummy_file_name));

4372

g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),

4373

==, ievent_size);

4374

g_assert_cmpint(close(pipefds[1]), ==, 0);

4375

4376

bool quit_now = false;

4377

buffer password = {};

4378

bool mandos_client_exited = false;

4379

bool password_is_read = false;

4380

__attribute__((cleanup(cleanup_queue)))

4381

task_queue *queue = create_queue();

4382

g_assert_nonnull(queue);

4383

4384

task_context task = {

4385

.func=read_inotify_event,

4386

.epoll_fd=epoll_fd,

4387

.fd=pipefds[0],

4388

.quit_now=&quit_now,

4389

.password=&password,

4390

.filename=strdup("/nonexistent"),

4391

.cancelled_filenames=&cancelled_filenames,

4392

.current_time=&current_time,

4393

.mandos_client_exited=&mandos_client_exited,

4394

.password_is_read=&password_is_read,

4395

};

4396

task.func(task, queue);

4397

g_assert_false(quit_now);

4398

g_assert_true(queue->next_run == 0);

4399

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

4400

4401

g_assert_nonnull(find_matching_task(queue, (task_context){

4402

.func=read_inotify_event,

4403

.epoll_fd=epoll_fd,

4404

.fd=pipefds[0],

4405

.quit_now=&quit_now,

4406

.password=&password,

4407

.filename=task.filename,

4408

.cancelled_filenames=&cancelled_filenames,

4409

.current_time=&current_time,

4410

.mandos_client_exited=&mandos_client_exited,

4411

.password_is_read=&password_is_read,

4412

}));

4413

4414

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4415

EPOLLIN | EPOLLRDHUP));

4416

4417

__attribute__((cleanup(cleanup_string)))

4418

char *filename = NULL;

4419

g_assert_cmpint(asprintf(&filename, "%s/%s", task.filename,

4420

dummy_file_name), >, 0);

4421

g_assert_nonnull(filename);

4422

g_assert_true(string_set_contains(*task.cancelled_filenames,

4423

filename));

4424

}

4425

4426

static void test_read_inotify_event_IN_DELETE(__attribute__((unused))

4427

test_fixture *fixture,

4428

__attribute__((unused))

4429

gconstpointer

4430

user_data){

4431

__attribute__((cleanup(cleanup_close)))

4432

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4433

g_assert_cmpint(epoll_fd, >=, 0);

4434

__attribute__((cleanup(string_set_clear)))

4435

string_set cancelled_filenames = {};

4436

const mono_microsecs current_time = 0;

4437

4438

int pipefds[2];

4439

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

4440

4441

/* "sufficient to read at least one event." - inotify(7) */

4442

const size_t ievent_max_size = (sizeof(struct inotify_event)

4443

+ NAME_MAX + 1);

4444

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4445

struct {

4446

struct inotify_event event;

4447

char name_buffer[NAME_MAX + 1];

4448

} ievent_buffer;

4449

struct inotify_event *const ievent = &ievent_buffer.event;

4450

4451

const char dummy_file_name[] = "ask.dummy_file_name";

4452

ievent->mask = IN_DELETE;

4453

ievent->len = sizeof(dummy_file_name);

4454

memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));

4455

const size_t ievent_size = (sizeof(struct inotify_event)

4456

+ sizeof(dummy_file_name));

4457

g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),

4458

==, ievent_size);

4459

g_assert_cmpint(close(pipefds[1]), ==, 0);

4460

4461

bool quit_now = false;

4462

buffer password = {};

4463

bool mandos_client_exited = false;

4464

bool password_is_read = false;

4465

__attribute__((cleanup(cleanup_queue)))

4466

task_queue *queue = create_queue();

4467

g_assert_nonnull(queue);

4468

4469

task_context task = {

4470

.func=read_inotify_event,

4471

.epoll_fd=epoll_fd,

4472

.fd=pipefds[0],

4473

.quit_now=&quit_now,

4474

.password=&password,

4475

.filename=strdup("/nonexistent"),

4476

.cancelled_filenames=&cancelled_filenames,

4477

.current_time=&current_time,

4478

.mandos_client_exited=&mandos_client_exited,

4479

.password_is_read=&password_is_read,

4480

};

4481

task.func(task, queue);

4482

g_assert_false(quit_now);

4483

g_assert_true(queue->next_run == 0);

4484

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

4485

4486

g_assert_nonnull(find_matching_task(queue, (task_context){

4487

.func=read_inotify_event,

4488

.epoll_fd=epoll_fd,

4489

.fd=pipefds[0],

4490

.quit_now=&quit_now,

4491

.password=&password,

4492

.filename=task.filename,

4493

.cancelled_filenames=&cancelled_filenames,

4494

.current_time=&current_time,

4495

.mandos_client_exited=&mandos_client_exited,

4496

.password_is_read=&password_is_read,

4497

}));

4498

4499

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4500

EPOLLIN | EPOLLRDHUP));

4501

4502

__attribute__((cleanup(cleanup_string)))

4503

char *filename = NULL;

4504

g_assert_cmpint(asprintf(&filename, "%s/%s", task.filename,

4505

dummy_file_name), >, 0);

4506

g_assert_nonnull(filename);

4507

g_assert_true(string_set_contains(*task.cancelled_filenames,

4508

filename));

4509

}

4510

4511

static void

4512

test_read_inotify_event_IN_CLOSE_WRITE_badname(__attribute__((unused))

4513

test_fixture *fixture,

4514

__attribute__((unused))

4515

gconstpointer

4516

user_data){

4517

__attribute__((cleanup(cleanup_close)))

4518

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4519

g_assert_cmpint(epoll_fd, >=, 0);

4520

const mono_microsecs current_time = 0;

4521

4522

int pipefds[2];

4523

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

4524

4525

/* "sufficient to read at least one event." - inotify(7) */

4526

const size_t ievent_max_size = (sizeof(struct inotify_event)

4527

+ NAME_MAX + 1);

4528

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4529

struct {

4530

struct inotify_event event;

4531

char name_buffer[NAME_MAX + 1];

4532

} ievent_buffer;

4533

struct inotify_event *const ievent = &ievent_buffer.event;

4534

4535

const char dummy_file_name[] = "ignored.dummy_file_name";

4536

ievent->mask = IN_CLOSE_WRITE;

4537

ievent->len = sizeof(dummy_file_name);

4538

memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));

4539

const size_t ievent_size = (sizeof(struct inotify_event)

4540

+ sizeof(dummy_file_name));

4541

g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),

4542

==, ievent_size);

4543

g_assert_cmpint(close(pipefds[1]), ==, 0);

4544

4545

bool quit_now = false;

4546

buffer password = {};

4547

bool mandos_client_exited = false;

4548

bool password_is_read = false;

4549

__attribute__((cleanup(cleanup_queue)))

4550

task_queue *queue = create_queue();

4551

g_assert_nonnull(queue);

4552

4553

task_context task = {

4554

.func=read_inotify_event,

4555

.epoll_fd=epoll_fd,

4556

.fd=pipefds[0],

4557

.quit_now=&quit_now,

4558

.password=&password,

4559

.filename=strdup("/nonexistent"),

4560

.cancelled_filenames = &(string_set){},

4561

.notafter=0,

4562

.current_time=&current_time,

4563

.mandos_client_exited=&mandos_client_exited,

4564

.password_is_read=&password_is_read,

4565

};

4566

task.func(task, queue);

4567

g_assert_false(quit_now);

4568

g_assert_true(queue->next_run == 0);

4569

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

4570

4571

g_assert_nonnull(find_matching_task(queue, (task_context){

4572

.func=read_inotify_event,

4573

.epoll_fd=epoll_fd,

4574

.fd=pipefds[0],

4575

.quit_now=&quit_now,

4576

.password=&password,

4577

.filename=task.filename,

4578

.cancelled_filenames=task.cancelled_filenames,

4579

.current_time=&current_time,

4580

.mandos_client_exited=&mandos_client_exited,

4581

.password_is_read=&password_is_read,

4582

}));

4583

4584

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4585

EPOLLIN | EPOLLRDHUP));

4586

}

4587

4588

static void

4589

test_read_inotify_event_IN_MOVED_TO_badname(__attribute__((unused))

4590

test_fixture *fixture,

4591

__attribute__((unused))

4592

gconstpointer user_data){

4593

__attribute__((cleanup(cleanup_close)))

4594

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4595

g_assert_cmpint(epoll_fd, >=, 0);

4596

const mono_microsecs current_time = 0;

4597

4598

int pipefds[2];

4599

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

4600

4601

/* "sufficient to read at least one event." - inotify(7) */

4602

const size_t ievent_max_size = (sizeof(struct inotify_event)

4603

+ NAME_MAX + 1);

4604

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4605

struct {

4606

struct inotify_event event;

4607

char name_buffer[NAME_MAX + 1];

4608

} ievent_buffer;

4609

struct inotify_event *const ievent = &ievent_buffer.event;

4610

4611

const char dummy_file_name[] = "ignored.dummy_file_name";

4612

ievent->mask = IN_MOVED_TO;

4613

ievent->len = sizeof(dummy_file_name);

4614

memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));

4615

const size_t ievent_size = (sizeof(struct inotify_event)

4616

+ sizeof(dummy_file_name));

4617

g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),

4618

==, ievent_size);

4619

g_assert_cmpint(close(pipefds[1]), ==, 0);

4620

4621

bool quit_now = false;

4622

buffer password = {};

4623

bool mandos_client_exited = false;

4624

bool password_is_read = false;

4625

__attribute__((cleanup(cleanup_queue)))

4626

task_queue *queue = create_queue();

4627

g_assert_nonnull(queue);

4628

4629

task_context task = {

4630

.func=read_inotify_event,

4631

.epoll_fd=epoll_fd,

4632

.fd=pipefds[0],

4633

.quit_now=&quit_now,

4634

.password=&password,

4635

.filename=strdup("/nonexistent"),

4636

.cancelled_filenames = &(string_set){},

4637

.notafter=0,

4638

.current_time=&current_time,

4639

.mandos_client_exited=&mandos_client_exited,

4640

.password_is_read=&password_is_read,

4641

};

4642

task.func(task, queue);

4643

g_assert_false(quit_now);

4644

g_assert_true(queue->next_run == 0);

4645

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

4646

4647

g_assert_nonnull(find_matching_task(queue, (task_context){

4648

.func=read_inotify_event,

4649

.epoll_fd=epoll_fd,

4650

.fd=pipefds[0],

4651

.quit_now=&quit_now,

4652

.password=&password,

4653

.filename=task.filename,

4654

.cancelled_filenames=task.cancelled_filenames,

4655

.current_time=&current_time,

4656

.mandos_client_exited=&mandos_client_exited,

4657

.password_is_read=&password_is_read,

4658

}));

4659

4660

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4661

EPOLLIN | EPOLLRDHUP));

4662

}

4663

4664

static void

4665

test_read_inotify_event_IN_MOVED_FROM_badname(__attribute__((unused))

4666

test_fixture *fixture,

4667

__attribute__((unused))

4668

gconstpointer

4669

user_data){

4670

__attribute__((cleanup(cleanup_close)))

4671

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4672

g_assert_cmpint(epoll_fd, >=, 0);

4673

__attribute__((cleanup(string_set_clear)))

4674

string_set cancelled_filenames = {};

4675

const mono_microsecs current_time = 0;

4676

4677

int pipefds[2];

4678

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

4679

4680

/* "sufficient to read at least one event." - inotify(7) */

4681

const size_t ievent_max_size = (sizeof(struct inotify_event)

4682

+ NAME_MAX + 1);

4683

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4684

struct {

4685

struct inotify_event event;

4686

char name_buffer[NAME_MAX + 1];

4687

} ievent_buffer;

4688

struct inotify_event *const ievent = &ievent_buffer.event;

4689

4690

const char dummy_file_name[] = "ignored.dummy_file_name";

4691

ievent->mask = IN_MOVED_FROM;

4692

ievent->len = sizeof(dummy_file_name);

4693

memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));

4694

const size_t ievent_size = (sizeof(struct inotify_event)

4695

+ sizeof(dummy_file_name));

4696

g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),

4697

==, ievent_size);

4698

g_assert_cmpint(close(pipefds[1]), ==, 0);

4699

4700

bool quit_now = false;

4701

buffer password = {};

4702

bool mandos_client_exited = false;

4703

bool password_is_read = false;

4704

__attribute__((cleanup(cleanup_queue)))

4705

task_queue *queue = create_queue();

4706

g_assert_nonnull(queue);

4707

4708

task_context task = {

4709

.func=read_inotify_event,

4710

.epoll_fd=epoll_fd,

4711

.fd=pipefds[0],

4712

.quit_now=&quit_now,

4713

.password=&password,

4714

.filename=strdup("/nonexistent"),

4715

.cancelled_filenames=&cancelled_filenames,

4716

.current_time=&current_time,

4717

.mandos_client_exited=&mandos_client_exited,

4718

.password_is_read=&password_is_read,

4719

};

4720

task.func(task, queue);

4721

g_assert_false(quit_now);

4722

g_assert_true(queue->next_run == 0);

4723

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

4724

4725

g_assert_nonnull(find_matching_task(queue, (task_context){

4726

.func=read_inotify_event,

4727

.epoll_fd=epoll_fd,

4728

.fd=pipefds[0],

4729

.quit_now=&quit_now,

4730

.password=&password,

4731

.filename=task.filename,

4732

.cancelled_filenames=&cancelled_filenames,

4733

.current_time=&current_time,

4734

.mandos_client_exited=&mandos_client_exited,

4735

.password_is_read=&password_is_read,

4736

}));

4737

4738

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4739

EPOLLIN | EPOLLRDHUP));

4740

4741

__attribute__((cleanup(cleanup_string)))

4742

char *filename = NULL;

4743

g_assert_cmpint(asprintf(&filename, "%s/%s", task.filename,

4744

dummy_file_name), >, 0);

4745

g_assert_nonnull(filename);

4746

g_assert_false(string_set_contains(cancelled_filenames, filename));

4747

}

4748

4749

static

4750

void test_read_inotify_event_IN_DELETE_badname(__attribute__((unused))

4751

test_fixture *fixture,

4752

__attribute__((unused))

4753

gconstpointer

4754

user_data){

4755

__attribute__((cleanup(cleanup_close)))

4756

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4757

g_assert_cmpint(epoll_fd, >=, 0);

4758

__attribute__((cleanup(string_set_clear)))

4759

string_set cancelled_filenames = {};

4760

const mono_microsecs current_time = 0;

4761

4762

int pipefds[2];

4763

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

4764

4765

/* "sufficient to read at least one event." - inotify(7) */

4766

const size_t ievent_max_size = (sizeof(struct inotify_event)

4767

+ NAME_MAX + 1);

4768

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4769

struct {

4770

struct inotify_event event;

4771

char name_buffer[NAME_MAX + 1];

4772

} ievent_buffer;

4773

struct inotify_event *const ievent = &ievent_buffer.event;

4774

4775

const char dummy_file_name[] = "ignored.dummy_file_name";

4776

ievent->mask = IN_DELETE;

4777

ievent->len = sizeof(dummy_file_name);

4778

memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));

4779

const size_t ievent_size = (sizeof(struct inotify_event)

4780

+ sizeof(dummy_file_name));

4781

g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),

4782

==, ievent_size);

4783

g_assert_cmpint(close(pipefds[1]), ==, 0);

4784

4785

bool quit_now = false;

4786

buffer password = {};

4787

bool mandos_client_exited = false;

4788

bool password_is_read = false;

4789

__attribute__((cleanup(cleanup_queue)))

4790

task_queue *queue = create_queue();

4791

g_assert_nonnull(queue);

4792

4793

task_context task = {

4794

.func=read_inotify_event,

4795

.epoll_fd=epoll_fd,

4796

.fd=pipefds[0],

4797

.quit_now=&quit_now,

4798

.password=&password,

4799

.filename=strdup("/nonexistent"),

4800

.cancelled_filenames=&cancelled_filenames,

4801

.current_time=&current_time,

4802

.mandos_client_exited=&mandos_client_exited,

4803

.password_is_read=&password_is_read,

4804

};

4805

task.func(task, queue);

4806

g_assert_false(quit_now);

4807

g_assert_true(queue->next_run == 0);

4808

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

4809

4810

g_assert_nonnull(find_matching_task(queue, (task_context){

4811

.func=read_inotify_event,

4812

.epoll_fd=epoll_fd,

4813

.fd=pipefds[0],

4814

.quit_now=&quit_now,

4815

.password=&password,

4816

.filename=task.filename,

4817

.cancelled_filenames=&cancelled_filenames,

4818

.current_time=&current_time,

4819

.mandos_client_exited=&mandos_client_exited,

4820

.password_is_read=&password_is_read,

4821

}));

4822

4823

g_assert_true(epoll_set_contains(epoll_fd, pipefds[0],

4824

EPOLLIN | EPOLLRDHUP));

4825

4826

__attribute__((cleanup(cleanup_string)))

4827

char *filename = NULL;

4828

g_assert_cmpint(asprintf(&filename, "%s/%s", task.filename,

4829

dummy_file_name), >, 0);

4830

g_assert_nonnull(filename);

4831

g_assert_false(string_set_contains(cancelled_filenames, filename));

4832

}

4833

4834

static

4835

void test_open_and_parse_question_ENOENT(__attribute__((unused))

4836

test_fixture *fixture,

4837

__attribute__((unused))

4838

gconstpointer user_data){

4839

__attribute__((cleanup(cleanup_close)))

4840

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4841

g_assert_cmpint(epoll_fd, >=, 0);

4842

__attribute__((cleanup(string_set_clear)))

4843

string_set cancelled_filenames = {};

4844

bool mandos_client_exited = false;

4845

bool password_is_read = false;

4846

__attribute__((cleanup(cleanup_queue)))

4847

task_queue *queue = create_queue();

4848

g_assert_nonnull(queue);

4849

4850

char *const filename = strdup("/nonexistent");

4851

g_assert_nonnull(filename);

4852

task_context task = {

4853

.func=open_and_parse_question,

4854

.question_filename=filename,

4855

.epoll_fd=epoll_fd,

4856

.password=(buffer[]){{}},

4857

.filename=filename,

4858

.cancelled_filenames=&cancelled_filenames,

4859

.current_time=(mono_microsecs[]){0},

4860

.mandos_client_exited=&mandos_client_exited,

4861

.password_is_read=&password_is_read,

4862

};

4863

task.func(task, queue);

4864

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

4865

}

4866

4867

static void test_open_and_parse_question_EIO(__attribute__((unused))

4868

test_fixture *fixture,

4869

__attribute__((unused))

4870

gconstpointer user_data){

4871

__attribute__((cleanup(cleanup_close)))

4872

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4873

g_assert_cmpint(epoll_fd, >=, 0);

4874

__attribute__((cleanup(string_set_clear)))

4875

string_set cancelled_filenames = {};

4876

buffer password = {};

4877

bool mandos_client_exited = false;

4878

bool password_is_read = false;

4879

__attribute__((cleanup(cleanup_queue)))

4880

task_queue *queue = create_queue();

4881

g_assert_nonnull(queue);

4882

const mono_microsecs current_time = 0;

4883

4884

char *filename = strdup("/proc/self/mem");

4885

task_context task = {

4886

.func=open_and_parse_question,

4887

.question_filename=filename,

4888

.epoll_fd=epoll_fd,

4889

.password=&password,

4890

.filename=filename,

4891

.cancelled_filenames=&cancelled_filenames,

4892

.current_time=&current_time,

4893

.mandos_client_exited=&mandos_client_exited,

4894

.password_is_read=&password_is_read,

4895

};

4896

run_task_with_stderr_to_dev_null(task, queue);

4897

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

4898

}

4899

4900

static void

4901

test_open_and_parse_question_parse_error(__attribute__((unused))

4902

test_fixture *fixture,

4903

__attribute__((unused))

4904

gconstpointer user_data){

4905

__attribute__((cleanup(cleanup_close)))

4906

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4907

g_assert_cmpint(epoll_fd, >=, 0);

4908

__attribute__((cleanup(string_set_clear)))

4909

string_set cancelled_filenames = {};

4910

__attribute__((cleanup(cleanup_queue)))

4911

task_queue *queue = create_queue();

4912

g_assert_nonnull(queue);

4913

4914

__attribute__((cleanup(cleanup_string)))

4915

char *tempfilename = strdup("/tmp/mandosXXXXXX");

4916

g_assert_nonnull(tempfilename);

4917

int tempfile = mkostemp(tempfilename, O_CLOEXEC);

4918

g_assert_cmpint(tempfile, >, 0);

4919

const char bad_data[] = "this is bad syntax\n";

4920

g_assert_cmpint(write(tempfile, bad_data, sizeof(bad_data)),

4921

==, sizeof(bad_data));

4922

g_assert_cmpint(close(tempfile), ==, 0);

4923

4924

char *const filename = strdup(tempfilename);

4925

g_assert_nonnull(filename);

4926

task_context task = {

4927

.func=open_and_parse_question,

4928

.question_filename=filename,

4929

.epoll_fd=epoll_fd,

4930

.password=(buffer[]){{}},

4931

.filename=filename,

4932

.cancelled_filenames=&cancelled_filenames,

4933

.current_time=(mono_microsecs[]){0},

4934

.mandos_client_exited=(bool[]){false},

4935

.password_is_read=(bool[]){false},

4936

};

4937

run_task_with_stderr_to_dev_null(task, queue);

4938

4939

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

4940

4941

g_assert_cmpint(unlink(tempfilename), ==, 0);

4942

}

4943

4944

static

4945

void test_open_and_parse_question_nosocket(__attribute__((unused))

4946

test_fixture *fixture,

4947

__attribute__((unused))

4948

gconstpointer user_data){

4949

__attribute__((cleanup(cleanup_close)))

4950

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4951

g_assert_cmpint(epoll_fd, >=, 0);

4952

__attribute__((cleanup(string_set_clear)))

4953

string_set cancelled_filenames = {};

4954

__attribute__((cleanup(cleanup_queue)))

4955

task_queue *queue = create_queue();

4956

g_assert_nonnull(queue);

4957

4958

__attribute__((cleanup(cleanup_string)))

4959

char *tempfilename = strdup("/tmp/mandosXXXXXX");

4960

g_assert_nonnull(tempfilename);

4961

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

4962

g_assert_cmpint(questionfile, >, 0);

4963

FILE *qf = fdopen(questionfile, "w");

4964

g_assert_cmpint(fprintf(qf, "[Ask]\nPID=1\n"), >, 0);

4965

g_assert_cmpint(fclose(qf), ==, 0);

4966

4967

char *const filename = strdup(tempfilename);

4968

g_assert_nonnull(filename);

4969

task_context task = {

4970

.func=open_and_parse_question,

4971

.question_filename=filename,

4972

.epoll_fd=epoll_fd,

4973

.password=(buffer[]){{}},

4974

.filename=filename,

4975

.cancelled_filenames=&cancelled_filenames,

4976

.current_time=(mono_microsecs[]){0},

4977

.mandos_client_exited=(bool[]){false},

4978

.password_is_read=(bool[]){false},

4979

};

4980

run_task_with_stderr_to_dev_null(task, queue);

4981

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

4982

4983

g_assert_cmpint(unlink(tempfilename), ==, 0);

4984

}

4985

4986

static

4987

void test_open_and_parse_question_badsocket(__attribute__((unused))

4988

test_fixture *fixture,

4989

__attribute__((unused))

4990

gconstpointer user_data){

4991

__attribute__((cleanup(cleanup_close)))

4992

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

4993

g_assert_cmpint(epoll_fd, >=, 0);

4994

__attribute__((cleanup(string_set_clear)))

4995

string_set cancelled_filenames = {};

4996

__attribute__((cleanup(cleanup_queue)))

4997

task_queue *queue = create_queue();

4998

g_assert_nonnull(queue);

4999

5000

__attribute__((cleanup(cleanup_string)))

5001

char *tempfilename = strdup("/tmp/mandosXXXXXX");

5002

g_assert_nonnull(tempfilename);

5003

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

5004

g_assert_cmpint(questionfile, >, 0);

5005

FILE *qf = fdopen(questionfile, "w");

5006

g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=\nPID=1\n"), >, 0);

5007

g_assert_cmpint(fclose(qf), ==, 0);

5008

5009

char *const filename = strdup(tempfilename);

5010

g_assert_nonnull(filename);

5011

task_context task = {

5012

.func=open_and_parse_question,

5013

.question_filename=filename,

5014

.epoll_fd=epoll_fd,

5015

.password=(buffer[]){{}},

5016

.filename=filename,

5017

.cancelled_filenames=&cancelled_filenames,

5018

.current_time=(mono_microsecs[]){0},

5019

.mandos_client_exited=(bool[]){false},

5020

.password_is_read=(bool[]){false},

5021

};

5022

run_task_with_stderr_to_dev_null(task, queue);

5023

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

5024

5025

g_assert_cmpint(unlink(tempfilename), ==, 0);

5026

}

5027

5028

static

5029

void test_open_and_parse_question_nopid(__attribute__((unused))

5030

test_fixture *fixture,

5031

__attribute__((unused))

5032

gconstpointer user_data){

5033

__attribute__((cleanup(cleanup_close)))

5034

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5035

g_assert_cmpint(epoll_fd, >=, 0);

5036

__attribute__((cleanup(string_set_clear)))

5037

string_set cancelled_filenames = {};

5038

__attribute__((cleanup(cleanup_queue)))

5039

task_queue *queue = create_queue();

5040

g_assert_nonnull(queue);

5041

5042

__attribute__((cleanup(cleanup_string)))

5043

char *tempfilename = strdup("/tmp/mandosXXXXXX");

5044

g_assert_nonnull(tempfilename);

5045

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

5046

g_assert_cmpint(questionfile, >, 0);

5047

FILE *qf = fdopen(questionfile, "w");

5048

g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=/nonexistent\n"), >, 0);

5049

g_assert_cmpint(fclose(qf), ==, 0);

5050

5051

char *const filename = strdup(tempfilename);

5052

g_assert_nonnull(filename);

5053

task_context task = {

5054

.func=open_and_parse_question,

5055

.question_filename=filename,

5056

.epoll_fd=epoll_fd,

5057

.password=(buffer[]){{}},

5058

.filename=filename,

5059

.cancelled_filenames=&cancelled_filenames,

5060

.current_time=(mono_microsecs[]){0},

5061

.mandos_client_exited=(bool[]){false},

5062

.password_is_read=(bool[]){false},

5063

};

5064

run_task_with_stderr_to_dev_null(task, queue);

5065

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

5066

5067

g_assert_cmpint(unlink(tempfilename), ==, 0);

5068

}

5069

5070

static

5071

void test_open_and_parse_question_badpid(__attribute__((unused))

5072

test_fixture *fixture,

5073

__attribute__((unused))

5074

gconstpointer user_data){

5075

__attribute__((cleanup(cleanup_close)))

5076

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5077

g_assert_cmpint(epoll_fd, >=, 0);

5078

__attribute__((cleanup(string_set_clear)))

5079

string_set cancelled_filenames = {};

5080

__attribute__((cleanup(cleanup_queue)))

5081

task_queue *queue = create_queue();

5082

g_assert_nonnull(queue);

5083

5084

__attribute__((cleanup(cleanup_string)))

5085

char *tempfilename = strdup("/tmp/mandosXXXXXX");

5086

g_assert_nonnull(tempfilename);

5087

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

5088

g_assert_cmpint(questionfile, >, 0);

5089

FILE *qf = fdopen(questionfile, "w");

5090

g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=/nonexistent\nPID=\n"),

5091

>, 0);

5092

g_assert_cmpint(fclose(qf), ==, 0);

5093

5094

char *const filename = strdup(tempfilename);

5095

g_assert_nonnull(filename);

5096

task_context task = {

5097

.func=open_and_parse_question,

5098

.question_filename=filename,

5099

.epoll_fd=epoll_fd,

5100

.password=(buffer[]){{}},

5101

.filename=filename,

5102

.cancelled_filenames=&cancelled_filenames,

5103

.current_time=(mono_microsecs[]){0},

5104

.mandos_client_exited=(bool[]){false},

5105

.password_is_read=(bool[]){false},

5106

};

5107

run_task_with_stderr_to_dev_null(task, queue);

5108

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

5109

5110

g_assert_cmpint(unlink(tempfilename), ==, 0);

5111

}

5112

5113

static void

5114

test_open_and_parse_question_noexist_pid(__attribute__((unused))

5115

test_fixture *fixture,

5116

__attribute__((unused))

5117

gconstpointer user_data){

5118

__attribute__((cleanup(cleanup_close)))

5119

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5120

g_assert_cmpint(epoll_fd, >=, 0);

5121

__attribute__((cleanup(string_set_clear)))

5122

string_set cancelled_filenames = {};

5123

buffer password = {};

5124

bool mandos_client_exited = false;

5125

bool password_is_read = false;

5126

__attribute__((cleanup(cleanup_queue)))

5127

task_queue *queue = create_queue();

5128

g_assert_nonnull(queue);

5129

const mono_microsecs current_time = 0;

5130

5131

/* Find value of sysctl kernel.pid_max */

5132

uintmax_t pid_max = 0;

5133

FILE *sysctl_pid_max = fopen("/proc/sys/kernel/pid_max", "r");

5134

g_assert_nonnull(sysctl_pid_max);

5135

g_assert_cmpint(fscanf(sysctl_pid_max, "%" PRIuMAX, &pid_max),

5136

==, 1);

5137

g_assert_cmpint(fclose(sysctl_pid_max), ==, 0);

5138

5139

pid_t nonexisting_pid = ((pid_t)pid_max)+1;

5140

g_assert_true(nonexisting_pid > 0); /* Overflow check */

5141

5142

__attribute__((cleanup(cleanup_string)))

5143

char *tempfilename = strdup("/tmp/mandosXXXXXX");

5144

g_assert_nonnull(tempfilename);

5145

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

5146

g_assert_cmpint(questionfile, >, 0);

5147

FILE *qf = fdopen(questionfile, "w");

5148

g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=/nonexistent\nPID=%"

5149

PRIuMAX"\n", (uintmax_t)nonexisting_pid),

5150

>, 0);

5151

g_assert_cmpint(fclose(qf), ==, 0);

5152

5153

char *const question_filename = strdup(tempfilename);

5154

g_assert_nonnull(question_filename);

5155

task_context task = {

5156

.func=open_and_parse_question,

5157

.question_filename=question_filename,

5158

.epoll_fd=epoll_fd,

5159

.password=&password,

5160

.filename=question_filename,

5161

.cancelled_filenames=&cancelled_filenames,

5162

.current_time=&current_time,

5163

.mandos_client_exited=&mandos_client_exited,

5164

.password_is_read=&password_is_read,

5165

};

5166

run_task_with_stderr_to_dev_null(task, queue);

5167

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

5168

5169

g_assert_cmpint(unlink(tempfilename), ==, 0);

5170

}

5171

5172

static void

5173

test_open_and_parse_question_no_notafter(__attribute__((unused))

5174

test_fixture *fixture,

5175

__attribute__((unused))

5176

gconstpointer user_data){

5177

__attribute__((cleanup(cleanup_close)))

5178

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5179

g_assert_cmpint(epoll_fd, >=, 0);

5180

__attribute__((cleanup(string_set_clear)))

5181

string_set cancelled_filenames = {};

5182

buffer password = {};

5183

bool mandos_client_exited = false;

5184

bool password_is_read = false;

5185

__attribute__((cleanup(cleanup_queue)))

5186

task_queue *queue = create_queue();

5187

g_assert_nonnull(queue);

5188

const mono_microsecs current_time = 0;

5189

5190

__attribute__((cleanup(cleanup_string)))

5191

char *tempfilename = strdup("/tmp/mandosXXXXXX");

5192

g_assert_nonnull(tempfilename);

5193

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

5194

g_assert_cmpint(questionfile, >, 0);

5195

FILE *qf = fdopen(questionfile, "w");

5196

g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=/nonexistent\nPID=%"

5197

PRIuMAX "\n", (uintmax_t)getpid()), >, 0);

5198

g_assert_cmpint(fclose(qf), ==, 0);

5199

5200

char *const filename = strdup(tempfilename);

5201

g_assert_nonnull(filename);

5202

task_context task = {

5203

.func=open_and_parse_question,

5204

.question_filename=filename,

5205

.epoll_fd=epoll_fd,

5206

.password=&password,

5207

.filename=filename,

5208

.cancelled_filenames=&cancelled_filenames,

5209

.current_time=&current_time,

5210

.mandos_client_exited=&mandos_client_exited,

5211

.password_is_read=&password_is_read,

5212

};

5213

task.func(task, queue);

5214

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

5215

5216

__attribute__((cleanup(cleanup_string)))

5217

char *socket_filename = strdup("/nonexistent");

5218

g_assert_nonnull(socket_filename);

5219

g_assert_nonnull(find_matching_task(queue, (task_context){

5220

.func=connect_question_socket,

5221

.question_filename=tempfilename,

5222

.filename=socket_filename,

5223

.epoll_fd=epoll_fd,

5224

.password=&password,

5225

.current_time=&current_time,

5226

.mandos_client_exited=&mandos_client_exited,

5227

.password_is_read=&password_is_read,

5228

}));

5229

5230

g_assert_true(queue->next_run != 0);

5231

5232

g_assert_cmpint(unlink(tempfilename), ==, 0);

5233

}

5234

5235

static void

5236

test_open_and_parse_question_bad_notafter(__attribute__((unused))

5237

test_fixture *fixture,

5238

__attribute__((unused))

5239

gconstpointer user_data){

5240

__attribute__((cleanup(cleanup_close)))

5241

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5242

g_assert_cmpint(epoll_fd, >=, 0);

5243

__attribute__((cleanup(string_set_clear)))

5244

string_set cancelled_filenames = {};

5245

buffer password = {};

5246

bool mandos_client_exited = false;

5247

bool password_is_read = false;

5248

__attribute__((cleanup(cleanup_queue)))

5249

task_queue *queue = create_queue();

5250

g_assert_nonnull(queue);

5251

const mono_microsecs current_time = 0;

5252

5253

__attribute__((cleanup(cleanup_string)))

5254

char *tempfilename = strdup("/tmp/mandosXXXXXX");

5255

g_assert_nonnull(tempfilename);

5256

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

5257

g_assert_cmpint(questionfile, >, 0);

5258

FILE *qf = fdopen(questionfile, "w");

5259

g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=/nonexistent\nPID=%"

5260

PRIuMAX "\nNotAfter=\n",

5261

(uintmax_t)getpid()), >, 0);

5262

g_assert_cmpint(fclose(qf), ==, 0);

5263

5264

char *const filename = strdup(tempfilename);

5265

g_assert_nonnull(filename);

5266

task_context task = {

5267

.func=open_and_parse_question,

5268

.question_filename=filename,

5269

.epoll_fd=epoll_fd,

5270

.password=&password,

5271

.filename=filename,

5272

.cancelled_filenames=&cancelled_filenames,

5273

.current_time=&current_time,

5274

.mandos_client_exited=&mandos_client_exited,

5275

.password_is_read=&password_is_read,

5276

};

5277

run_task_with_stderr_to_dev_null(task, queue);

5278

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

5279

5280

__attribute__((cleanup(cleanup_string)))

5281

char *socket_filename = strdup("/nonexistent");

5282

g_assert_nonnull(find_matching_task(queue, (task_context){

5283

.func=connect_question_socket,

5284

.question_filename=tempfilename,

5285

.filename=socket_filename,

5286

.epoll_fd=epoll_fd,

5287

.password=&password,

5288

.current_time=&current_time,

5289

.mandos_client_exited=&mandos_client_exited,

5290

.password_is_read=&password_is_read,

5291

}));

5292

g_assert_true(queue->next_run != 0);

5293

5294

g_assert_cmpint(unlink(tempfilename), ==, 0);

5295

}

5296

5297

static

5298

void assert_open_and_parse_question_with_notafter(const mono_microsecs

5299

current_time,

5300

const mono_microsecs

5301

notafter,

5302

const mono_microsecs

5303

next_queue_run){

5304

__attribute__((cleanup(cleanup_close)))

5305

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5306

g_assert_cmpint(epoll_fd, >=, 0);

5307

__attribute__((cleanup(string_set_clear)))

5308

string_set cancelled_filenames = {};

5309

buffer password = {};

5310

bool mandos_client_exited = false;

5311

bool password_is_read = false;

5312

__attribute__((cleanup(cleanup_queue)))

5313

task_queue *queue = create_queue();

5314

g_assert_nonnull(queue);

5315

queue->next_run = next_queue_run;

5316

5317

__attribute__((cleanup(cleanup_string)))

5318

char *tempfilename = strdup("/tmp/mandosXXXXXX");

5319

g_assert_nonnull(tempfilename);

5320

int questionfile = mkostemp(tempfilename, O_CLOEXEC);

5321

g_assert_cmpint(questionfile, >, 0);

5322

FILE *qf = fdopen(questionfile, "w");

5323

g_assert_cmpint(fprintf(qf, "[Ask]\nSocket=/nonexistent\nPID=%"

5324

PRIuMAX "\nNotAfter=%" PRIuMAX "\n",

5325

(uintmax_t)getpid(), notafter), >, 0);

5326

g_assert_cmpint(fclose(qf), ==, 0);

5327

5328

char *const filename = strdup(tempfilename);

5329

g_assert_nonnull(filename);

5330

task_context task = {

5331

.func=open_and_parse_question,

5332

.question_filename=filename,

5333

.epoll_fd=epoll_fd,

5334

.password=&password,

5335

.filename=filename,

5336

.cancelled_filenames=&cancelled_filenames,

5337

.current_time=&current_time,

5338

.mandos_client_exited=&mandos_client_exited,

5339

.password_is_read=&password_is_read,

5340

};

5341

task.func(task, queue);

5342

5343

if(queue->length >= 1){

5344

__attribute__((cleanup(cleanup_string)))

5345

char *socket_filename = strdup("/nonexistent");

5346

g_assert_nonnull(find_matching_task(queue, (task_context){

5347

.func=connect_question_socket,

5348

.filename=socket_filename,

5349

.epoll_fd=epoll_fd,

5350

.password=&password,

5351

.current_time=&current_time,

5352

.cancelled_filenames=&cancelled_filenames,

5353

.mandos_client_exited=&mandos_client_exited,

5354

.password_is_read=&password_is_read,

5355

}));

5356

g_assert_true(queue->next_run != 0);

5357

}

5358

5359

if(notafter == 0){

5360

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

5361

} else if(current_time >= notafter) {

5362

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

5363

} else {

5364

g_assert_nonnull(find_matching_task(queue, (task_context){

5365

.func=cancel_old_question,

5366

.question_filename=tempfilename,

5367

.filename=tempfilename,

5368

.notafter=notafter,

5369

.cancelled_filenames=&cancelled_filenames,

5370

.current_time=&current_time,

5371

}));

5372

}

5373

g_assert_true(queue->next_run == 1);

5374

5375

g_assert_cmpint(unlink(tempfilename), ==, 0);

5376

}

5377

5378

static void

5379

test_open_and_parse_question_notafter_0(__attribute__((unused))

5380

test_fixture *fixture,

5381

__attribute__((unused))

5382

gconstpointer user_data){

5383

/* current_time, notafter, next_queue_run */

5384

assert_open_and_parse_question_with_notafter(0, 0, 0);

5385

}

5386

5387

static void

5388

test_open_and_parse_question_notafter_1(__attribute__((unused))

5389

test_fixture *fixture,

5390

__attribute__((unused))

5391

gconstpointer user_data){

5392

/* current_time, notafter, next_queue_run */

5393

assert_open_and_parse_question_with_notafter(0, 1, 0);

5394

}

5395

5396

static void

5397

test_open_and_parse_question_notafter_1_1(__attribute__((unused))

5398

test_fixture *fixture,

5399

__attribute__((unused))

5400

gconstpointer user_data){

5401

/* current_time, notafter, next_queue_run */

5402

assert_open_and_parse_question_with_notafter(0, 1, 1);

5403

}

5404

5405

static void

5406

test_open_and_parse_question_notafter_1_2(__attribute__((unused))

5407

test_fixture *fixture,

5408

__attribute__((unused))

5409

gconstpointer user_data){

5410

/* current_time, notafter, next_queue_run */

5411

assert_open_and_parse_question_with_notafter(0, 1, 2);

5412

}

5413

5414

static void

5415

test_open_and_parse_question_equal_notafter(__attribute__((unused))

5416

test_fixture *fixture,

5417

__attribute__((unused))

5418

gconstpointer user_data){

5419

/* current_time, notafter, next_queue_run */

5420

assert_open_and_parse_question_with_notafter(1, 1, 0);

5421

}

5422

5423

static void

5424

test_open_and_parse_question_late_notafter(__attribute__((unused))

5425

test_fixture *fixture,

5426

__attribute__((unused))

5427

gconstpointer user_data){

5428

/* current_time, notafter, next_queue_run */

5429

assert_open_and_parse_question_with_notafter(2, 1, 0);

5430

}

5431

5432

static void assert_cancel_old_question_param(const mono_microsecs

5433

next_queue_run,

5434

const mono_microsecs

5435

notafter,

5436

const mono_microsecs

5437

current_time,

5438

const mono_microsecs

5439

next_set_to){

5440

__attribute__((cleanup(string_set_clear)))

5441

string_set cancelled_filenames = {};

5442

__attribute__((cleanup(cleanup_queue)))

5443

task_queue *queue = create_queue();

5444

g_assert_nonnull(queue);

5445

queue->next_run = next_queue_run;

5446

5447

char *const question_filename = strdup("/nonexistent");

5448

g_assert_nonnull(question_filename);

5449

task_context task = {

5450

.func=cancel_old_question,

5451

.question_filename=question_filename,

5452

.filename=question_filename,

5453

.notafter=notafter,

5454

.cancelled_filenames=&cancelled_filenames,

5455

.current_time=&current_time,

5456

};

5457

task.func(task, queue);

5458

5459

if(current_time >= notafter){

5460

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

5461

g_assert_true(string_set_contains(cancelled_filenames,

5462

"/nonexistent"));

5463

} else {

5464

g_assert_nonnull(find_matching_task(queue, (task_context){

5465

.func=cancel_old_question,

5466

.question_filename=question_filename,

5467

.filename=question_filename,

5468

.notafter=notafter,

5469

.cancelled_filenames=&cancelled_filenames,

5470

.current_time=&current_time,

5471

}));

5472

5473

g_assert_false(string_set_contains(cancelled_filenames,

5474

question_filename));

5475

}

5476

g_assert_cmpuint((unsigned int)queue->next_run, ==,

5477

(unsigned int)next_set_to);

5478

}

5479

5480

static void test_cancel_old_question_0_1_2(__attribute__((unused))

5481

test_fixture *fixture,

5482

__attribute__((unused))

5483

gconstpointer user_data){

5484

/* next_queue_run unset,

5485

cancellation should happen because time has come,

5486

next_queue_run should be unchanged */

5487

/* next_queue_run, notafter, current_time, next_set_to */

5488

assert_cancel_old_question_param(0, 1, 2, 0);

5489

}

5490

5491

static void test_cancel_old_question_0_2_1(__attribute__((unused))

5492

test_fixture *fixture,

5493

__attribute__((unused))

5494

gconstpointer user_data){

5495

/* If next_queue_run is 0, meaning unset, and notafter is 2,

5496

and current_time is not yet notafter or greater,

5497

update value of next_queue_run to value of notafter */

5498

/* next_queue_run, notafter, current_time, next_set_to */

5499

assert_cancel_old_question_param(0, 2, 1, 2);

5500

}

5501

5502

static void test_cancel_old_question_1_2_3(__attribute__((unused))

5503

test_fixture *fixture,

5504

__attribute__((unused))

5505

gconstpointer user_data){

5506

/* next_queue_run 1,

5507

cancellation should happen because time has come,

5508

next_queue_run should be unchanged */

5509

/* next_queue_run, notafter, current_time, next_set_to */

5510

assert_cancel_old_question_param(1, 2, 3, 1);

5511

}

5512

5513

static void test_cancel_old_question_1_3_2(__attribute__((unused))

5514

test_fixture *fixture,

5515

__attribute__((unused))

5516

gconstpointer user_data){

5517

/* If next_queue_run is set,

5518

and current_time is not yet notafter or greater,

5519

and notafter is larger than next_queue_run

5520

next_queue_run should be unchanged */

5521

/* next_queue_run, notafter, current_time, next_set_to */

5522

assert_cancel_old_question_param(1, 3, 2, 1);

5523

}

5524

5525

static void test_cancel_old_question_2_1_3(__attribute__((unused))

5526

test_fixture *fixture,

5527

__attribute__((unused))

5528

gconstpointer user_data){

5529

/* next_queue_run 2,

5530

cancellation should happen because time has come,

5531

next_queue_run should be unchanged */

5532

/* next_queue_run, notafter, current_time, next_set_to */

5533

assert_cancel_old_question_param(2, 1, 3, 2);

5534

}

5535

5536

static void test_cancel_old_question_2_3_1(__attribute__((unused))

5537

test_fixture *fixture,

5538

__attribute__((unused))

5539

gconstpointer user_data){

5540

/* If next_queue_run is set,

5541

and current_time is not yet notafter or greater,

5542

and notafter is larger than next_queue_run

5543

next_queue_run should be unchanged */

5544

/* next_queue_run, notafter, current_time, next_set_to */

5545

assert_cancel_old_question_param(2, 3, 1, 2);

5546

}

5547

5548

static void test_cancel_old_question_3_1_2(__attribute__((unused))

5549

test_fixture *fixture,

5550

__attribute__((unused))

5551

gconstpointer user_data){

5552

/* next_queue_run 3,

5553

cancellation should happen because time has come,

5554

next_queue_run should be unchanged */

5555

/* next_queue_run, notafter, current_time, next_set_to */

5556

assert_cancel_old_question_param(3, 1, 2, 3);

5557

}

5558

5559

static void test_cancel_old_question_3_2_1(__attribute__((unused))

5560

test_fixture *fixture,

5561

__attribute__((unused))

5562

gconstpointer user_data){

5563

/* If next_queue_run is set,

5564

and current_time is not yet notafter or greater,

5565

and notafter is smaller than next_queue_run

5566

update value of next_queue_run to value of notafter */

5567

/* next_queue_run, notafter, current_time, next_set_to */

5568

assert_cancel_old_question_param(3, 2, 1, 2);

5569

}

5570

5571

static void

5572

test_connect_question_socket_name_too_long(__attribute__((unused))

5573

test_fixture *fixture,

5574

__attribute__((unused))

5575

gconstpointer user_data){

5576

__attribute__((cleanup(cleanup_close)))

5577

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5578

g_assert_cmpint(epoll_fd, >=, 0);

5579

const char question_filename[] = "/nonexistent/question";

5580

__attribute__((cleanup(string_set_clear)))

5581

string_set cancelled_filenames = {};

5582

__attribute__((cleanup(cleanup_queue)))

5583

task_queue *queue = create_queue();

5584

g_assert_nonnull(queue);

5585

__attribute__((cleanup(cleanup_string)))

5586

char *tempdir = make_temporary_directory();

5587

g_assert_nonnull(tempdir);

5588

struct sockaddr_un unix_socket = { .sun_family=AF_LOCAL };

5589

char socket_name[sizeof(unix_socket.sun_path)];

5590

memset(socket_name, 'x', sizeof(socket_name));

5591

socket_name[sizeof(socket_name)-1] = '\0';

5592

char *filename = NULL;

5593

g_assert_cmpint(asprintf(&filename, "%s/%s", tempdir, socket_name),

5594

>, 0);

5595

g_assert_nonnull(filename);

5596

5597

task_context task = {

5598

.func=connect_question_socket,

5599

.question_filename=strdup(question_filename),

5600

.epoll_fd=epoll_fd,

5601

.password=(buffer[]){{}},

5602

.filename=filename,

5603

.cancelled_filenames=&cancelled_filenames,

5604

.mandos_client_exited=(bool[]){false},

5605

.password_is_read=(bool[]){false},

5606

.current_time=(mono_microsecs[]){0},

5607

};

5608

g_assert_nonnull(task.question_filename);

5609

run_task_with_stderr_to_dev_null(task, queue);

5610

5611

g_assert_true(string_set_contains(cancelled_filenames,

5612

question_filename));

5613

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

5614

g_assert_true(queue->next_run == 0);

5615

5616

g_assert_cmpint(rmdir(tempdir), ==, 0);

5617

}

5618

5619

static

5620

void test_connect_question_socket_connect_fail(__attribute__((unused))

5621

test_fixture *fixture,

5622

__attribute__((unused))

5623

gconstpointer

5624

user_data){

5625

__attribute__((cleanup(cleanup_close)))

5626

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5627

g_assert_cmpint(epoll_fd, >=, 0);

5628

const char question_filename[] = "/nonexistent/question";

5629

__attribute__((cleanup(string_set_clear)))

5630

string_set cancelled_filenames = {};

5631

const mono_microsecs current_time = 3;

5632

__attribute__((cleanup(cleanup_queue)))

5633

task_queue *queue = create_queue();

5634

g_assert_nonnull(queue);

5635

__attribute__((cleanup(cleanup_string)))

5636

char *tempdir = make_temporary_directory();

5637

g_assert_nonnull(tempdir);

5638

char socket_name[] = "nonexistent";

5639

char *filename = NULL;

5640

g_assert_cmpint(asprintf(&filename, "%s/%s", tempdir, socket_name),

5641

>, 0);

5642

g_assert_nonnull(filename);

5643

5644

task_context task = {

5645

.func=connect_question_socket,

5646

.question_filename=strdup(question_filename),

5647

.epoll_fd=epoll_fd,

5648

.password=(buffer[]){{}},

5649

.filename=filename,

5650

.cancelled_filenames=&cancelled_filenames,

5651

.mandos_client_exited=(bool[]){false},

5652

.password_is_read=(bool[]){false},

5653

.current_time=&current_time,

5654

};

5655

g_assert_nonnull(task.question_filename);

5656

run_task_with_stderr_to_dev_null(task, queue);

5657

5658

g_assert_nonnull(find_matching_task(queue, task));

5659

5660

g_assert_false(string_set_contains(cancelled_filenames,

5661

question_filename));

5662

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

5663

g_assert_true(queue->next_run == 1000000 + current_time);

5664

5665

g_assert_cmpint(rmdir(tempdir), ==, 0);

5666

}

5667

5668

static

5669

void test_connect_question_socket_bad_epoll(__attribute__((unused))

5670

test_fixture *fixture,

5671

__attribute__((unused))

5672

gconstpointer user_data){

5673

__attribute__((cleanup(cleanup_close)))

5674

const int epoll_fd = open("/dev/null",

5675

O_WRONLY | O_CLOEXEC | O_NOCTTY);

5676

__attribute__((cleanup(cleanup_string)))

5677

char *const question_filename = strdup("/nonexistent/question");

5678

g_assert_nonnull(question_filename);

5679

__attribute__((cleanup(string_set_clear)))

5680

string_set cancelled_filenames = {};

5681

const mono_microsecs current_time = 5;

5682

__attribute__((cleanup(cleanup_queue)))

5683

task_queue *queue = create_queue();

5684

g_assert_nonnull(queue);

5685

__attribute__((cleanup(cleanup_string)))

5686

char *tempdir = make_temporary_directory();

5687

g_assert_nonnull(tempdir);

5688

__attribute__((cleanup(cleanup_close)))

5689

const int sock_fd = socket(PF_LOCAL, SOCK_DGRAM

5690

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0);

5691

g_assert_cmpint(sock_fd, >=, 0);

5692

struct sockaddr_un sock_name = { .sun_family=AF_LOCAL };

5693

const char socket_name[] = "socket_name";

5694

__attribute__((cleanup(cleanup_string)))

5695

char *filename = NULL;

5696

g_assert_cmpint(asprintf(&filename, "%s/%s", tempdir, socket_name),

5697

>, 0);

5698

g_assert_nonnull(filename);

5699

g_assert_cmpint((int)strlen(filename), <,

5700

(int)sizeof(sock_name.sun_path));

5701

strncpy(sock_name.sun_path, filename, sizeof(sock_name.sun_path));

5702

sock_name.sun_path[sizeof(sock_name.sun_path)-1] = '\0';

5703

g_assert_cmpint((int)bind(sock_fd, (struct sockaddr *)&sock_name,

5704

(socklen_t)SUN_LEN(&sock_name)), >=, 0);

5705

task_context task = {

5706

.func=connect_question_socket,

5707

.question_filename=strdup(question_filename),

5708

.epoll_fd=epoll_fd,

5709

.password=(buffer[]){{}},

5710

.filename=strdup(filename),

5711

.cancelled_filenames=&cancelled_filenames,

5712

.mandos_client_exited=(bool[]){false},

5713

.password_is_read=(bool[]){false},

5714

.current_time=&current_time,

5715

};

5716

g_assert_nonnull(task.question_filename);

5717

run_task_with_stderr_to_dev_null(task, queue);

5718

5719

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

5720

const task_context *const added_task

5721

= find_matching_task(queue, task);

5722

g_assert_nonnull(added_task);

5723

g_assert_true(queue->next_run == 1000000 + current_time);

5724

5725

g_assert_cmpint(unlink(filename), ==, 0);

5726

g_assert_cmpint(rmdir(tempdir), ==, 0);

5727

}

5728

5729

static

5730

void test_connect_question_socket_usable(__attribute__((unused))

5731

test_fixture *fixture,

5732

__attribute__((unused))

5733

gconstpointer user_data){

5734

__attribute__((cleanup(cleanup_close)))

5735

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5736

g_assert_cmpint(epoll_fd, >=, 0);

5737

__attribute__((cleanup(cleanup_string)))

5738

char *const question_filename = strdup("/nonexistent/question");

5739

g_assert_nonnull(question_filename);

5740

__attribute__((cleanup(string_set_clear)))

5741

string_set cancelled_filenames = {};

5742

buffer password = {};

5743

bool mandos_client_exited = false;

5744

bool password_is_read = false;

5745

const mono_microsecs current_time = 0;

5746

__attribute__((cleanup(cleanup_queue)))

5747

task_queue *queue = create_queue();

5748

g_assert_nonnull(queue);

5749

__attribute__((cleanup(cleanup_string)))

5750

char *tempdir = make_temporary_directory();

5751

g_assert_nonnull(tempdir);

5752

__attribute__((cleanup(cleanup_close)))

5753

const int sock_fd = socket(PF_LOCAL, SOCK_DGRAM

5754

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0);

5755

g_assert_cmpint(sock_fd, >=, 0);

5756

struct sockaddr_un sock_name = { .sun_family=AF_LOCAL };

5757

const char socket_name[] = "socket_name";

5758

__attribute__((cleanup(cleanup_string)))

5759

char *filename = NULL;

5760

g_assert_cmpint(asprintf(&filename, "%s/%s", tempdir, socket_name),

5761

>, 0);

5762

g_assert_nonnull(filename);

5763

g_assert_cmpint((int)strlen(filename), <,

5764

(int)sizeof(sock_name.sun_path));

5765

strncpy(sock_name.sun_path, filename, sizeof(sock_name.sun_path));

5766

sock_name.sun_path[sizeof(sock_name.sun_path)-1] = '\0';

5767

g_assert_cmpint((int)bind(sock_fd, (struct sockaddr *)&sock_name,

5768

(socklen_t)SUN_LEN(&sock_name)), >=, 0);

5769

task_context task = {

5770

.func=connect_question_socket,

5771

.question_filename=strdup(question_filename),

5772

.epoll_fd=epoll_fd,

5773

.password=&password,

5774

.filename=strdup(filename),

5775

.cancelled_filenames=&cancelled_filenames,

5776

.mandos_client_exited=&mandos_client_exited,

5777

.password_is_read=&password_is_read,

5778

.current_time=&current_time,

5779

};

5780

g_assert_nonnull(task.question_filename);

5781

task.func(task, queue);

5782

5783

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

5784

const task_context *const added_task

5785

= find_matching_task(queue, (task_context){

5786

.func=send_password_to_socket,

5787

.question_filename=question_filename,

5788

.filename=filename,

5789

.epoll_fd=epoll_fd,

5790

.password=&password,

5791

.cancelled_filenames=&cancelled_filenames,

5792

.mandos_client_exited=&mandos_client_exited,

5793

.password_is_read=&password_is_read,

5794

.current_time=&current_time,

5795

});

5796

g_assert_nonnull(added_task);

5797

g_assert_cmpint(added_task->fd, >, 0);

5798

5799

g_assert_true(epoll_set_contains(epoll_fd, added_task->fd,

5800

EPOLLOUT));

5801

5802

const int fd = added_task->fd;

5803

g_assert_cmpint(fd, >, 0);

5804

g_assert_true(fd_has_cloexec_and_nonblock(fd));

5805

5806

/* write to fd */

5807

char write_data[PIPE_BUF];

5808

{

5809

/* Construct test password buffer */

5810

/* Start with + since that is what the real procotol uses */

5811

write_data[0] = '+';

5812

/* Set a special character at string end just to mark the end */

5813

write_data[sizeof(write_data)-2] = 'y';

5814

/* Set NUL at buffer end, as suggested by the protocol */

5815

write_data[sizeof(write_data)-1] = '\0';

5816

/* Fill rest of password with 'x' */

5817

memset(write_data+1, 'x', sizeof(write_data)-3);

5818

g_assert_cmpint((int)send(fd, write_data, sizeof(write_data),

5819

MSG_NOSIGNAL), ==, sizeof(write_data));

5820

}

5821

5822

/* read from sock_fd */

5823

char read_data[sizeof(write_data)];

5824

g_assert_cmpint((int)read(sock_fd, read_data, sizeof(read_data)),

5825

==, sizeof(read_data));

5826

5827

g_assert_true(memcmp(write_data, read_data, sizeof(write_data))

5828

== 0);

5829

5830

/* writing to sock_fd should fail */

5831

g_assert_cmpint(send(sock_fd, write_data, sizeof(write_data),

5832

MSG_NOSIGNAL), <, 0);

5833

5834

/* reading from fd should fail */

5835

g_assert_cmpint((int)recv(fd, read_data, sizeof(read_data),

5836

MSG_NOSIGNAL), <, 0);

5837

5838

g_assert_cmpint(unlink(filename), ==, 0);

5839

g_assert_cmpint(rmdir(tempdir), ==, 0);

5840

}

5841

5842

static void

5843

test_send_password_to_socket_client_not_exited(__attribute__((unused))

5844

test_fixture *fixture,

5845

__attribute__((unused))

5846

gconstpointer

5847

user_data){

5848

__attribute__((cleanup(cleanup_close)))

5849

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5850

g_assert_cmpint(epoll_fd, >=, 0);

5851

__attribute__((cleanup(cleanup_string)))

5852

char *const question_filename = strdup("/nonexistent/question");

5853

g_assert_nonnull(question_filename);

5854

__attribute__((cleanup(cleanup_string)))

5855

char *const filename = strdup("/nonexistent/socket");

5856

g_assert_nonnull(filename);

5857

__attribute__((cleanup(string_set_clear)))

5858

string_set cancelled_filenames = {};

5859

buffer password = {};

5860

bool password_is_read = true;

5861

__attribute__((cleanup(cleanup_queue)))

5862

task_queue *queue = create_queue();

5863

g_assert_nonnull(queue);

5864

int socketfds[2];

5865

g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM

5866

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,

5867

socketfds), ==, 0);

5868

__attribute__((cleanup(cleanup_close)))

5869

const int read_socket = socketfds[0];

5870

const int write_socket = socketfds[1];

5871

task_context task = {

5872

.func=send_password_to_socket,

5873

.question_filename=strdup(question_filename),

5874

.filename=strdup(filename),

5875

.epoll_fd=epoll_fd,

5876

.fd=write_socket,

5877

.password=&password,

5878

.cancelled_filenames=&cancelled_filenames,

5879

.mandos_client_exited=(bool[]){false},

5880

.password_is_read=&password_is_read,

5881

.current_time=(mono_microsecs[]){0},

5882

};

5883

g_assert_nonnull(task.question_filename);

5884

5885

task.func(task, queue);

5886

5887

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

5888

5889

const task_context *const added_task

5890

= find_matching_task(queue, task);

5891

g_assert_nonnull(added_task);

5892

g_assert_cmpuint((unsigned int)password.length, ==, 0);

5893

g_assert_true(password_is_read);

5894

5895

g_assert_cmpint(added_task->fd, >, 0);

5896

g_assert_true(epoll_set_contains(epoll_fd, added_task->fd,

5897

EPOLLOUT));

5898

}

5899

5900

static void

5901

test_send_password_to_socket_password_not_read(__attribute__((unused))

5902

test_fixture *fixture,

5903

__attribute__((unused))

5904

gconstpointer

5905

user_data){

5906

__attribute__((cleanup(cleanup_close)))

5907

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5908

g_assert_cmpint(epoll_fd, >=, 0);

5909

__attribute__((cleanup(cleanup_string)))

5910

char *const question_filename = strdup("/nonexistent/question");

5911

g_assert_nonnull(question_filename);

5912

__attribute__((cleanup(cleanup_string)))

5913

char *const filename = strdup("/nonexistent/socket");

5914

__attribute__((cleanup(string_set_clear)))

5915

string_set cancelled_filenames = {};

5916

buffer password = {};

5917

__attribute__((cleanup(cleanup_queue)))

5918

task_queue *queue = create_queue();

5919

g_assert_nonnull(queue);

5920

int socketfds[2];

5921

g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM

5922

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,

5923

socketfds), ==, 0);

5924

__attribute__((cleanup(cleanup_close)))

5925

const int read_socket = socketfds[0];

5926

const int write_socket = socketfds[1];

5927

task_context task = {

5928

.func=send_password_to_socket,

5929

.question_filename=strdup(question_filename),

5930

.filename=strdup(filename),

5931

.epoll_fd=epoll_fd,

5932

.fd=write_socket,

5933

.password=&password,

5934

.cancelled_filenames=&cancelled_filenames,

5935

.mandos_client_exited=(bool[]){false},

5936

.password_is_read=(bool[]){false},

5937

.current_time=(mono_microsecs[]){0},

5938

};

5939

g_assert_nonnull(task.question_filename);

5940

5941

task.func(task, queue);

5942

5943

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

5944

5945

const task_context *const added_task = find_matching_task(queue,

5946

task);

5947

g_assert_nonnull(added_task);

5948

g_assert_cmpuint((unsigned int)password.length, ==, 0);

5949

g_assert_true(queue->next_run == 0);

5950

5951

g_assert_cmpint(added_task->fd, >, 0);

5952

g_assert_true(epoll_set_contains(epoll_fd, added_task->fd,

5953

EPOLLOUT));

5954

}

5955

5956

static

5957

void test_send_password_to_socket_EMSGSIZE(__attribute__((unused))

5958

test_fixture *fixture,

5959

__attribute__((unused))

5960

gconstpointer user_data){

5961

#ifndef __amd64__

5962

g_test_skip("Skipping EMSGSIZE test on non-AMD64 platform");

5963

#else

5964

__attribute__((cleanup(cleanup_close)))

5965

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5966

g_assert_cmpint(epoll_fd, >=, 0);

5967

const char question_filename[] = "/nonexistent/question";

5968

char *const filename = strdup("/nonexistent/socket");

5969

__attribute__((cleanup(string_set_clear)))

5970

string_set cancelled_filenames = {};

5971

const size_t oversized = 1024*1024; /* Limit seems to be 212960 */

5972

__attribute__((cleanup(cleanup_buffer)))

5973

buffer password = {

5974

.data=malloc(oversized),

5975

.length=oversized,

5976

.allocated=oversized,

5977

};

5978

g_assert_nonnull(password.data);

5979

if(mlock(password.data, password.allocated) != 0){

5980

g_assert_true(errno == EPERM or errno == ENOMEM);

5981

}

5982

/* Construct test password buffer */

5983

/* Start with + since that is what the real procotol uses */

5984

password.data[0] = '+';

5985

/* Set a special character at string end just to mark the end */

5986

password.data[oversized-3] = 'y';

5987

/* Set NUL at buffer end, as suggested by the protocol */

5988

password.data[oversized-2] = '\0';

5989

/* Fill rest of password with 'x' */

5990

memset(password.data+1, 'x', oversized-3);

5991

5992

__attribute__((cleanup(cleanup_queue)))

5993

task_queue *queue = create_queue();

5994

g_assert_nonnull(queue);

5995

int socketfds[2];

5996

g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM

5997

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,

5998

socketfds), ==, 0);

5999

__attribute__((cleanup(cleanup_close)))

6000

const int read_socket = socketfds[0];

6001

__attribute__((cleanup(cleanup_close)))

6002

const int write_socket = socketfds[1];

6003

task_context task = {

6004

.func=send_password_to_socket,

6005

.question_filename=strdup(question_filename),

6006

.filename=filename,

6007

.epoll_fd=epoll_fd,

6008

.fd=write_socket,

6009

.password=&password,

6010

.cancelled_filenames=&cancelled_filenames,

6011

.mandos_client_exited=(bool[]){true},

6012

.password_is_read=(bool[]){true},

6013

.current_time=(mono_microsecs[]){0},

6014

};

6015

g_assert_nonnull(task.question_filename);

6016

6017

run_task_with_stderr_to_dev_null(task, queue);

6018

6019

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

6020

g_assert_true(string_set_contains(cancelled_filenames,

6021

question_filename));

6022

#endif

6023

}

6024

6025

static void test_send_password_to_socket_retry(__attribute__((unused))

6026

test_fixture *fixture,

6027

__attribute__((unused))

6028

gconstpointer

6029

user_data){

6030

__attribute__((cleanup(cleanup_close)))

6031

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6032

g_assert_cmpint(epoll_fd, >=, 0);

6033

__attribute__((cleanup(cleanup_string)))

6034

char *const question_filename = strdup("/nonexistent/question");

6035

g_assert_nonnull(question_filename);

6036

__attribute__((cleanup(cleanup_string)))

6037

char *const filename = strdup("/nonexistent/socket");

6038

g_assert_nonnull(filename);

6039

__attribute__((cleanup(string_set_clear)))

6040

string_set cancelled_filenames = {};

6041

__attribute__((cleanup(cleanup_buffer)))

6042

buffer password = {};

6043

6044

__attribute__((cleanup(cleanup_queue)))

6045

task_queue *queue = create_queue();

6046

g_assert_nonnull(queue);

6047

int socketfds[2];

6048

g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM

6049

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,

6050

socketfds), ==, 0);

6051

__attribute__((cleanup(cleanup_close)))

6052

const int read_socket = socketfds[0];

6053

const int write_socket = socketfds[1];

6054

/* Close the server side socket to force ECONNRESET on client */

6055

g_assert_cmpint(close(read_socket), ==, 0);

6056

task_context task = {

6057

.func=send_password_to_socket,

6058

.question_filename=strdup(question_filename),

6059

.filename=strdup(filename),

6060

.epoll_fd=epoll_fd,

6061

.fd=write_socket,

6062

.password=&password,

6063

.cancelled_filenames=&cancelled_filenames,

6064

.mandos_client_exited=(bool[]){true},

6065

.password_is_read=(bool[]){true},

6066

.current_time=(mono_microsecs[]){0},

6067

};

6068

g_assert_nonnull(task.question_filename);

6069

6070

task.func(task, queue);

6071

6072

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

6073

6074

const task_context *const added_task = find_matching_task(queue,

6075

task);

6076

g_assert_nonnull(added_task);

6077

g_assert_cmpuint((unsigned int)password.length, ==, 0);

6078

6079

g_assert_true(epoll_set_contains(epoll_fd, added_task->fd,

6080

EPOLLOUT));

6081

}

6082

6083

static

6084

void test_send_password_to_socket_bad_epoll(__attribute__((unused))

6085

test_fixture *fixture,

6086

__attribute__((unused))

6087

gconstpointer user_data){

6088

__attribute__((cleanup(cleanup_close)))

6089

const int epoll_fd = open("/dev/null",

6090

O_WRONLY | O_CLOEXEC | O_NOCTTY);

6091

__attribute__((cleanup(cleanup_string)))

6092

char *const question_filename = strdup("/nonexistent/question");

6093

g_assert_nonnull(question_filename);

6094

__attribute__((cleanup(cleanup_string)))

6095

char *const filename = strdup("/nonexistent/socket");

6096

g_assert_nonnull(filename);

6097

__attribute__((cleanup(string_set_clear)))

6098

string_set cancelled_filenames = {};

6099

__attribute__((cleanup(cleanup_buffer)))

6100

buffer password = {};

6101

6102

const mono_microsecs current_time = 11;

6103

__attribute__((cleanup(cleanup_queue)))

6104

task_queue *queue = create_queue();

6105

g_assert_nonnull(queue);

6106

int socketfds[2];

6107

g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM

6108

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,

6109

socketfds), ==, 0);

6110

__attribute__((cleanup(cleanup_close)))

6111

const int read_socket = socketfds[0];

6112

const int write_socket = socketfds[1];

6113

/* Close the server side socket to force ECONNRESET on client */

6114

g_assert_cmpint(close(read_socket), ==, 0);

6115

task_context task = {

6116

.func=send_password_to_socket,

6117

.question_filename=strdup(question_filename),

6118

.filename=strdup(filename),

6119

.epoll_fd=epoll_fd,

6120

.fd=write_socket,

6121

.password=&password,

6122

.cancelled_filenames=&cancelled_filenames,

6123

.mandos_client_exited=(bool[]){true},

6124

.password_is_read=(bool[]){true},

6125

.current_time=&current_time,

6126

};

6127

g_assert_nonnull(task.question_filename);

6128

6129

run_task_with_stderr_to_dev_null(task, queue);

6130

6131

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

6132

6133

const task_context *const added_task = find_matching_task(queue,

6134

task);

6135

g_assert_nonnull(added_task);

6136

g_assert_true(queue->next_run == current_time + 1000000);

6137

g_assert_cmpuint((unsigned int)password.length, ==, 0);

6138

}

6139

6140

static void assert_send_password_to_socket_password(buffer password){

6141

__attribute__((cleanup(cleanup_close)))

6142

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6143

g_assert_cmpint(epoll_fd, >=, 0);

6144

char *const question_filename = strdup("/nonexistent/question");

6145

g_assert_nonnull(question_filename);

6146

char *const filename = strdup("/nonexistent/socket");

6147

g_assert_nonnull(filename);

6148

__attribute__((cleanup(string_set_clear)))

6149

string_set cancelled_filenames = {};

6150

6151

__attribute__((cleanup(cleanup_queue)))

6152

task_queue *queue = create_queue();

6153

g_assert_nonnull(queue);

6154

int socketfds[2];

6155

g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM

6156

| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,

6157

socketfds), ==, 0);

6158

__attribute__((cleanup(cleanup_close)))

6159

const int read_socket = socketfds[0];

6160

const int write_socket = socketfds[1];

6161

task_context task = {

6162

.func=send_password_to_socket,

6163

.question_filename=question_filename,

6164

.filename=filename,

6165

.epoll_fd=epoll_fd,

6166

.fd=write_socket,

6167

.password=&password,

6168

.cancelled_filenames=&cancelled_filenames,

6169

.mandos_client_exited=(bool[]){true},

6170

.password_is_read=(bool[]){true},

6171

.current_time=(mono_microsecs[]){0},

6172

};

6173

6174

char *expected_written_data = malloc(password.length + 2);

6175

g_assert_nonnull(expected_written_data);

6176

expected_written_data[0] = '+';

6177

expected_written_data[password.length + 1] = '\0';

6178

if(password.length > 0){

6179

g_assert_nonnull(password.data);

6180

memcpy(expected_written_data + 1, password.data, password.length);

6181

}

6182

6183

task.func(task, queue);

6184

6185

char buf[PIPE_BUF];

6186

g_assert_cmpint((int)read(read_socket, buf, PIPE_BUF), ==,

6187

(int)(password.length + 2));

6188

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

6189

6190

g_assert_true(memcmp(expected_written_data, buf,

6191

password.length + 2) == 0);

6192

6193

g_assert_true(epoll_set_does_not_contain(epoll_fd, write_socket));

6194

6195

free(expected_written_data);

6196

}

6197

6198

static void

6199

test_send_password_to_socket_null_password(__attribute__((unused))

6200

test_fixture *fixture,

6201

__attribute__((unused))

6202

gconstpointer user_data){

6203

__attribute__((cleanup(cleanup_buffer)))

6204

buffer password = {};

6205

assert_send_password_to_socket_password(password);

6206

}

6207

6208

static void

6209

test_send_password_to_socket_empty_password(__attribute__((unused))

6210

test_fixture *fixture,

6211

__attribute__((unused))

6212

gconstpointer user_data){

6213

__attribute__((cleanup(cleanup_buffer)))

6214

buffer password = {

6215

.data=malloc(1), /* because malloc(0) may return NULL */

6216

.length=0,

6217

.allocated=0, /* deliberate lie */

6218

};

6219

g_assert_nonnull(password.data);

6220

assert_send_password_to_socket_password(password);

6221

}

6222

6223

static void

6224

test_send_password_to_socket_empty_str_pass(__attribute__((unused))

6225

test_fixture *fixture,

6226

__attribute__((unused))

6227

gconstpointer user_data){

6228

__attribute__((cleanup(cleanup_buffer)))

6229

buffer password = {

6230

.data=strdup(""),

6231

.length=0,

6232

.allocated=1,

6233

};

6234

if(mlock(password.data, password.allocated) != 0){

6235

g_assert_true(errno == EPERM or errno == ENOMEM);

6236

}

6237

assert_send_password_to_socket_password(password);

6238

}

6239

6240

static void

6241

test_send_password_to_socket_text_password(__attribute__((unused))

6242

test_fixture *fixture,

6243

__attribute__((unused))

6244

gconstpointer user_data){

6245

const char dummy_test_password[] = "dummy test password";

6246

__attribute__((cleanup(cleanup_buffer)))

6247

buffer password = {

6248

.data = strdup(dummy_test_password),

6249

.length = strlen(dummy_test_password),

6250

.allocated = sizeof(dummy_test_password),

6251

};

6252

if(mlock(password.data, password.allocated) != 0){

6253

g_assert_true(errno == EPERM or errno == ENOMEM);

6254

}

6255

assert_send_password_to_socket_password(password);

6256

}

6257

6258

static void

6259

test_send_password_to_socket_binary_password(__attribute__((unused))

6260

test_fixture *fixture,

6261

__attribute__((unused))

6262

gconstpointer user_data){

6263

__attribute__((cleanup(cleanup_buffer)))

6264

buffer password = {

6265

.data=malloc(255),

6266

.length=255,

6267

.allocated=255,

6268

};

6269

g_assert_nonnull(password.data);

6270

if(mlock(password.data, password.allocated) != 0){

6271

g_assert_true(errno == EPERM or errno == ENOMEM);

6272

}

6273

char c = 1; /* Start at 1, avoiding NUL */

6274

for(int i=0; i < 255; i++){

6275

password.data[i] = c++;

6276

}

6277

assert_send_password_to_socket_password(password);

6278

}

6279

6280

static void

6281

test_send_password_to_socket_nuls_in_password(__attribute__((unused))

6282

test_fixture *fixture,

6283

__attribute__((unused))

6284

gconstpointer

6285

user_data){

6286

char test_password[] = {'\0', 'a', '\0', 'b', '\0', 'c', '\0'};

6287

__attribute__((cleanup(cleanup_buffer)))

6288

buffer password = {

6289

.data=malloc(sizeof(test_password)),

6290

.length=sizeof(test_password),

6291

.allocated=sizeof(test_password),

6292

};

6293

g_assert_nonnull(password.data);

6294

if(mlock(password.data, password.allocated) !=0){

6295

g_assert_true(errno == EPERM or errno == ENOMEM);

6296

}

6297

memcpy(password.data, test_password, password.allocated);

6298

assert_send_password_to_socket_password(password);

6299

}

6300

6301

static bool assert_add_existing_questions_to_devnull(task_queue

6302

*const,

6303

const int,

6304

buffer *const,

6305

string_set *,

6306

const

6307

mono_microsecs

6308

*const,

6309

bool *const,

6310

bool *const,

6311

const char

6312

*const);

6313

6314

static void test_add_existing_questions_ENOENT(__attribute__((unused))

6315

test_fixture *fixture,

6316

__attribute__((unused))

6317

gconstpointer

6318

user_data){

6319

__attribute__((cleanup(cleanup_queue)))

6320

task_queue *queue = create_queue();

6321

g_assert_nonnull(queue);

6322

__attribute__((cleanup(cleanup_close)))

6323

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6324

g_assert_cmpint(epoll_fd, >=, 0);

6325

__attribute__((cleanup(string_set_clear)))

6326

string_set cancelled_filenames = {};

6327

6328

g_assert_false(assert_add_existing_questions_to_devnull

6329

(queue,

6330

epoll_fd,

6331

(buffer[]){{}}, /* password */

6332

&cancelled_filenames,

6333

(mono_microsecs[]){0}, /* current_time */

6334

(bool[]){false}, /* mandos_client_exited */

6335

(bool[]){false}, /* password_is_read */

6336

"/nonexistent")); /* dirname */

6337

6338

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

6339

}

6340

6341

static

6342

bool assert_add_existing_questions_to_devnull(task_queue

6343

*const queue,

6344

const int

6345

epoll_fd,

6346

buffer *const

6347

password,

6348

string_set

6349

*cancelled_filenames,

6350

const mono_microsecs

6351

*const current_time,

6352

bool *const

6353

mandos_client_exited,

6354

bool *const

6355

password_is_read,

6356

const char *const

6357

dirname){

6358

__attribute__((cleanup(cleanup_close)))

6359

const int devnull_fd = open("/dev/null",

6360

O_WRONLY | O_CLOEXEC | O_NOCTTY);

6361

g_assert_cmpint(devnull_fd, >=, 0);

6362

__attribute__((cleanup(cleanup_close)))

6363

const int real_stderr_fd = dup(STDERR_FILENO);

6364

g_assert_cmpint(real_stderr_fd, >=, 0);

6365

dup2(devnull_fd, STDERR_FILENO);

6366

const bool ret = add_existing_questions(queue, epoll_fd, password,

6367

cancelled_filenames,

6368

current_time,

6369

mandos_client_exited,

6370

password_is_read, dirname);

6371

dup2(real_stderr_fd, STDERR_FILENO);

6372

return ret;

6373

}

6374

6375

static

6376

void test_add_existing_questions_no_questions(__attribute__((unused))

6377

test_fixture *fixture,

6378

__attribute__((unused))

6379

gconstpointer

6380

user_data){

6381

__attribute__((cleanup(cleanup_queue)))

6382

task_queue *queue = create_queue();

6383

g_assert_nonnull(queue);

6384

__attribute__((cleanup(cleanup_close)))

6385

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6386

g_assert_cmpint(epoll_fd, >=, 0);

6387

__attribute__((cleanup(string_set_clear)))

6388

string_set cancelled_filenames = {};

6389

__attribute__((cleanup(cleanup_string)))

6390

char *tempdir = make_temporary_directory();

6391

g_assert_nonnull(tempdir);

6392

6393

g_assert_false(assert_add_existing_questions_to_devnull

6394

(queue,

6395

epoll_fd,

6396

(buffer[]){{}}, /* password */

6397

&cancelled_filenames,

6398

(mono_microsecs[]){0}, /* current_time */

6399

(bool[]){false}, /* mandos_client_exited */

6400

(bool[]){false}, /* password_is_read */

6401

tempdir));

6402

6403

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

6404

6405

g_assert_cmpint(rmdir(tempdir), ==, 0);

6406

}

6407

6408

static char *make_question_file_in_directory(const char *const);

6409

6410

static

6411

void test_add_existing_questions_one_question(__attribute__((unused))

6412

test_fixture *fixture,

6413

__attribute__((unused))

6414

gconstpointer

6415

user_data){

6416

__attribute__((cleanup(cleanup_queue)))

6417

task_queue *queue = create_queue();

6418

g_assert_nonnull(queue);

6419

__attribute__((cleanup(cleanup_close)))

6420

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6421

g_assert_cmpint(epoll_fd, >=, 0);

6422

__attribute__((cleanup(cleanup_buffer)))

6423

buffer password = {};

6424

__attribute__((cleanup(string_set_clear)))

6425

string_set cancelled_filenames = {};

6426

const mono_microsecs current_time = 0;

6427

bool mandos_client_exited = false;

6428

bool password_is_read = false;

6429

__attribute__((cleanup(cleanup_string)))

6430

char *tempdir = make_temporary_directory();

6431

g_assert_nonnull(tempdir);

6432

__attribute__((cleanup(cleanup_string)))

6433

char *question_filename

6434

= make_question_file_in_directory(tempdir);

6435

g_assert_nonnull(question_filename);

6436

6437

g_assert_true(assert_add_existing_questions_to_devnull

6438

(queue,

6439

epoll_fd,

6440

&password,

6441

&cancelled_filenames,

6442

&current_time,

6443

&mandos_client_exited,

6444

&password_is_read,

6445

tempdir));

6446

6447

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

6448

6449

g_assert_nonnull(find_matching_task(queue, (task_context){

6450

.func=open_and_parse_question,

6451

.epoll_fd=epoll_fd,

6452

.filename=question_filename,

6453

.question_filename=question_filename,

6454

.password=&password,

6455

.cancelled_filenames=&cancelled_filenames,

6456

.current_time=&current_time,

6457

.mandos_client_exited=&mandos_client_exited,

6458

.password_is_read=&password_is_read,

6459

}));

6460

6461

g_assert_true(queue->next_run == 1);

6462

6463

g_assert_cmpint(unlink(question_filename), ==, 0);

6464

g_assert_cmpint(rmdir(tempdir), ==, 0);

6465

}

6466

6467

static char *make_question_file_in_directory(const char

6468

*const dir){

6469

return make_temporary_prefixed_file_in_directory("ask.", dir);

6470

}

6471

6472

static

6473

void test_add_existing_questions_two_questions(__attribute__((unused))

6474

test_fixture *fixture,

6475

__attribute__((unused))

6476

gconstpointer

6477

user_data){

6478

__attribute__((cleanup(cleanup_queue)))

6479

task_queue *queue = create_queue();

6480

g_assert_nonnull(queue);

6481

__attribute__((cleanup(cleanup_close)))

6482

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6483

g_assert_cmpint(epoll_fd, >=, 0);

6484

__attribute__((cleanup(cleanup_buffer)))

6485

buffer password = {};

6486

__attribute__((cleanup(string_set_clear)))

6487

string_set cancelled_filenames = {};

6488

const mono_microsecs current_time = 0;

6489

bool mandos_client_exited = false;

6490

bool password_is_read = false;

6491

__attribute__((cleanup(cleanup_string)))

6492

char *tempdir = make_temporary_directory();

6493

g_assert_nonnull(tempdir);

6494

__attribute__((cleanup(cleanup_string)))

6495

char *question_filename1

6496

= make_question_file_in_directory(tempdir);

6497

g_assert_nonnull(question_filename1);

6498

__attribute__((cleanup(cleanup_string)))

6499

char *question_filename2

6500

= make_question_file_in_directory(tempdir);

6501

g_assert_nonnull(question_filename2);

6502

6503

g_assert_true(assert_add_existing_questions_to_devnull

6504

(queue,

6505

epoll_fd,

6506

&password,

6507

&cancelled_filenames,

6508

&current_time,

6509

&mandos_client_exited,

6510

&password_is_read,

6511

tempdir));

6512

6513

g_assert_cmpuint((unsigned int)queue->length, ==, 2);

6514

6515

g_assert_true(queue->next_run == 1);

6516

6517

__attribute__((cleanup(string_set_clear)))

6518

string_set seen_questions = {};

6519

6520

bool queue_contains_question_opener(char *const question_filename){

6521

return(find_matching_task(queue, (task_context){

6522

.func=open_and_parse_question,

6523

.epoll_fd=epoll_fd,

6524

.question_filename=question_filename,

6525

.password=&password,

6526

.cancelled_filenames=&cancelled_filenames,

6527

.current_time=&current_time,

6528

.mandos_client_exited=&mandos_client_exited,

6529

.password_is_read=&password_is_read,

6530

}) != NULL);

6531

}

6532

6533

g_assert_true(queue_contains_question_opener(question_filename1));

6534

g_assert_true(queue_contains_question_opener(question_filename2));

6535

6536

g_assert_true(queue->next_run == 1);

6537

6538

g_assert_cmpint(unlink(question_filename1), ==, 0);

6539

g_assert_cmpint(unlink(question_filename2), ==, 0);

6540

g_assert_cmpint(rmdir(tempdir), ==, 0);

6541

}

6542

6543

static void

6544

test_add_existing_questions_non_questions(__attribute__((unused))

6545

test_fixture *fixture,

6546

__attribute__((unused))

6547

gconstpointer user_data){

6548

__attribute__((cleanup(cleanup_queue)))

6549

task_queue *queue = create_queue();

6550

g_assert_nonnull(queue);

6551

__attribute__((cleanup(cleanup_close)))

6552

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6553

g_assert_cmpint(epoll_fd, >=, 0);

6554

__attribute__((cleanup(string_set_clear)))

6555

string_set cancelled_filenames = {};

6556

__attribute__((cleanup(cleanup_string)))

6557

char *tempdir = make_temporary_directory();

6558

g_assert_nonnull(tempdir);

6559

__attribute__((cleanup(cleanup_string)))

6560

char *question_filename1

6561

= make_temporary_file_in_directory(tempdir);

6562

g_assert_nonnull(question_filename1);

6563

__attribute__((cleanup(cleanup_string)))

6564

char *question_filename2

6565

= make_temporary_file_in_directory(tempdir);

6566

g_assert_nonnull(question_filename2);

6567

6568

g_assert_false(assert_add_existing_questions_to_devnull

6569

(queue,

6570

epoll_fd,

6571

(buffer[]){{}}, /* password */

6572

&cancelled_filenames,

6573

(mono_microsecs[]){0}, /* current_time */

6574

(bool[]){false}, /* mandos_client_exited */

6575

(bool[]){false}, /* password_is_read */

6576

tempdir));

6577

6578

g_assert_cmpuint((unsigned int)queue->length, ==, 0);

6579

6580

g_assert_cmpint(unlink(question_filename1), ==, 0);

6581

g_assert_cmpint(unlink(question_filename2), ==, 0);

6582

g_assert_cmpint(rmdir(tempdir), ==, 0);

6583

}

6584

6585

static void

6586

test_add_existing_questions_both_types(__attribute__((unused))

6587

test_fixture *fixture,

6588

__attribute__((unused))

6589

gconstpointer user_data){

6590

__attribute__((cleanup(cleanup_queue)))

6591

task_queue *queue = create_queue();

6592

g_assert_nonnull(queue);

6593

__attribute__((cleanup(cleanup_close)))

6594

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6595

g_assert_cmpint(epoll_fd, >=, 0);

6596

__attribute__((cleanup(cleanup_buffer)))

6597

buffer password = {};

6598

__attribute__((cleanup(string_set_clear)))

6599

string_set cancelled_filenames = {};

6600

const mono_microsecs current_time = 0;

6601

bool mandos_client_exited = false;

6602

bool password_is_read = false;

6603

__attribute__((cleanup(cleanup_string)))

6604

char *tempdir = make_temporary_directory();

6605

g_assert_nonnull(tempdir);

6606

__attribute__((cleanup(cleanup_string)))

6607

char *tempfilename1 = make_temporary_file_in_directory(tempdir);

6608

g_assert_nonnull(tempfilename1);

6609

__attribute__((cleanup(cleanup_string)))

6610

char *tempfilename2 = make_temporary_file_in_directory(tempdir);

6611

g_assert_nonnull(tempfilename2);

6612

__attribute__((cleanup(cleanup_string)))

6613

char *question_filename

6614

= make_question_file_in_directory(tempdir);

6615

g_assert_nonnull(question_filename);

6616

6617

g_assert_true(assert_add_existing_questions_to_devnull

6618

(queue,

6619

epoll_fd,

6620

&password,

6621

&cancelled_filenames,

6622

&current_time,

6623

&mandos_client_exited,

6624

&password_is_read,

6625

tempdir));

6626

6627

g_assert_cmpuint((unsigned int)queue->length, ==, 1);

6628

6629

g_assert_nonnull(find_matching_task(queue, (task_context){

6630

.func=open_and_parse_question,

6631

.epoll_fd=epoll_fd,

6632

.filename=question_filename,

6633

.question_filename=question_filename,

6634

.password=&password,

6635

.cancelled_filenames=&cancelled_filenames,

6636

.current_time=&current_time,

6637

.mandos_client_exited=&mandos_client_exited,

6638

.password_is_read=&password_is_read,

6639

}));

6640

6641

g_assert_true(queue->next_run == 1);

6642

6643

g_assert_cmpint(unlink(tempfilename1), ==, 0);

6644

g_assert_cmpint(unlink(tempfilename2), ==, 0);

6645

g_assert_cmpint(unlink(question_filename), ==, 0);

6646

g_assert_cmpint(rmdir(tempdir), ==, 0);

6647

}

6648

6649

static void test_wait_for_event_timeout(__attribute__((unused))

6650

test_fixture *fixture,

6651

__attribute__((unused))

6652

gconstpointer user_data){

6653

__attribute__((cleanup(cleanup_close)))

6654

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6655

g_assert_cmpint(epoll_fd, >=, 0);

6656

6657

g_assert_true(wait_for_event(epoll_fd, 1, 0));

6658

}

6659

6660

static void test_wait_for_event_event(__attribute__((unused))

6661

test_fixture *fixture,

6662

__attribute__((unused))

6663

gconstpointer user_data){

6664

__attribute__((cleanup(cleanup_close)))

6665

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6666

g_assert_cmpint(epoll_fd, >=, 0);

6667

int pipefds[2];

6668

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

6669

__attribute__((cleanup(cleanup_close)))

6670

const int read_pipe = pipefds[0];

6671

__attribute__((cleanup(cleanup_close)))

6672

const int write_pipe = pipefds[1];

6673

g_assert_cmpint(epoll_ctl(epoll_fd, EPOLL_CTL_ADD, read_pipe,

6674

&(struct epoll_event)

6675

{ .events=EPOLLIN | EPOLLRDHUP }), ==, 0);

6676

g_assert_cmpint((int)write(write_pipe, "x", 1), ==, 1);

6677

6678

g_assert_true(wait_for_event(epoll_fd, 0, 0));

6679

}

6680

6681

static void test_wait_for_event_sigchld(test_fixture *fixture,

6682

__attribute__((unused))

6683

gconstpointer user_data){

6684

const pid_t pid = fork();

6685

if(pid == 0){ /* Child */

6686

if(not restore_signal_handler(&fixture->orig_sigaction)){

6687

_exit(EXIT_FAILURE);

6688

}

6689

if(not restore_sigmask(&fixture->orig_sigmask)){

6690

_exit(EXIT_FAILURE);

6691

}

6692

exit(EXIT_SUCCESS);

6693

}

6694

g_assert_true(pid != -1);

6695

__attribute__((cleanup(cleanup_close)))

6696

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6697

g_assert_cmpint(epoll_fd, >=, 0);

6698

6699

g_assert_true(wait_for_event(epoll_fd, 0, 0));

6700

6701

int status;

6702

g_assert_true(waitpid(pid, &status, 0) == pid);

6703

g_assert_true(WIFEXITED(status));

6704

g_assert_cmpint(WEXITSTATUS(status), ==, EXIT_SUCCESS);

6705

}

6706

6707

static void test_run_queue_zeroes_next_run(__attribute__((unused))

6708

test_fixture *fixture,

6709

__attribute__((unused))

6710

gconstpointer user_data){

6711

__attribute__((cleanup(cleanup_queue)))

6712

task_queue *queue = create_queue();

6713

g_assert_nonnull(queue);

6714

queue->next_run = 1;

6715

__attribute__((cleanup(cleanup_close)))

6716

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

6717

__attribute__((cleanup(string_set_clear)))

6718

string_set cancelled_filenames = {};

6719

bool quit_now = false;

6720

6721

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

6722

g_assert_false(quit_now);

6723

g_assert_cmpuint((unsigned int)queue->next_run, ==, 0);

6724

}

6725

6726

static

6727

void test_run_queue_clears_cancelled_filenames(__attribute__((unused))

6728

test_fixture *fixture,

6729

__attribute__((unused))

6730

gconstpointer

6731

user_data){

6732

__attribute__((cleanup(cleanup_queue)))

6733

task_queue *queue = create_queue();

6734

g_assert_nonnull(queue);

6735

__attribute__((cleanup(string_set_clear)))

6736

string_set cancelled_filenames = {};

6737

bool quit_now = false;

6738

const char question_filename[] = "/nonexistent/question_filename";

6739

g_assert_true(string_set_add(&cancelled_filenames,

6740

question_filename));

6741

6742

g_assert_true(add_to_queue(queue,

6743

(task_context){ .func=dummy_func }));

6744

6745

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

6746

g_assert_false(quit_now);

6747

g_assert_cmpuint((unsigned int)(queue->length), ==, 0);

6748

g_assert_false(string_set_contains(cancelled_filenames,

6749

question_filename));

6750

}

6751

6752

static

6753

void test_run_queue_skips_cancelled_filenames(__attribute__((unused))

6754

test_fixture *fixture,

6755

__attribute__((unused))

6756

gconstpointer

6757

user_data){

6758

__attribute__((cleanup(cleanup_queue)))

6759

task_queue *queue = create_queue();

6760

g_assert_nonnull(queue);

6761

__attribute__((cleanup(string_set_clear)))

6762

string_set cancelled_filenames = {};

6763

bool quit_now = false;

6764

int pipefds[2];

6765

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

6766

__attribute__((cleanup(cleanup_close)))

6767

const int read_pipe = pipefds[0];

6768

g_assert_cmpint(close(pipefds[1]), ==, 0);

6769

const char question_filename[] = "/nonexistent/question_filename";

6770

g_assert_true(string_set_add(&cancelled_filenames,

6771

question_filename));

6772

__attribute__((nonnull))

6773

void quit_func(const task_context task,

6774

__attribute__((unused)) task_queue *const q){

6775

g_assert_nonnull(task.quit_now);

6776

*task.quit_now = true;

6777

}

6778

task_context task = {

6779

.func=quit_func,

6780

.question_filename=strdup(question_filename),

6781

.quit_now=&quit_now,

6782

.fd=read_pipe,

6783

};

6784

g_assert_nonnull(task.question_filename);

6785

6786

g_assert_true(add_to_queue(queue, task));

6787

6788

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

6789

g_assert_false(quit_now);

6790

6791

/* read_pipe should be closed already */

6792

errno = 0;

6793

bool read_pipe_closed = (close(read_pipe) == -1);

6794

read_pipe_closed &= (errno == EBADF);

6795

g_assert_true(read_pipe_closed);

6796

}

6797

6798

static void test_run_queue_one_task(__attribute__((unused))

6799

test_fixture *fixture,

6800

__attribute__((unused))

6801

gconstpointer user_data){

6802

__attribute__((cleanup(cleanup_queue)))

6803

task_queue *queue = create_queue();

6804

g_assert_nonnull(queue);

6805

__attribute__((cleanup(string_set_clear)))

6806

string_set cancelled_filenames = {};

6807

bool quit_now = false;

6808

6809

__attribute__((nonnull))

6810

void next_run_func(__attribute__((unused))

6811

const task_context task,

6812

task_queue *const q){

6813

q->next_run = 1;

6814

}

6815

6816

task_context task = {

6817

.func=next_run_func,

6818

};

6819

g_assert_true(add_to_queue(queue, task));

6820

6821

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

6822

g_assert_cmpuint((unsigned int)(queue->next_run), ==, 1);

6823

g_assert_cmpuint((unsigned int)(queue->length), ==, 0);

6824

}

6825

6826

static void test_run_queue_two_tasks(__attribute__((unused))

6827

test_fixture *fixture,

6828

__attribute__((unused))

6829

gconstpointer user_data){

6830

__attribute__((cleanup(cleanup_queue)))

6831

task_queue *queue = create_queue();

6832

g_assert_nonnull(queue);

6833

queue->next_run = 1;

6834

__attribute__((cleanup(string_set_clear)))

6835

string_set cancelled_filenames = {};

6836

bool quit_now = false;

6837

bool mandos_client_exited = false;

6838

6839

__attribute__((nonnull))

6840

void next_run_func(__attribute__((unused))

6841

const task_context task,

6842

task_queue *const q){

6843

q->next_run = 1;

6844

}

6845

6846

__attribute__((nonnull))

6847

void exited_func(const task_context task,

6848

__attribute__((unused)) task_queue *const q){

6849

*task.mandos_client_exited = true;

6850

}

6851

6852

task_context task1 = {

6853

.func=next_run_func,

6854

};

6855

g_assert_true(add_to_queue(queue, task1));

6856

6857

task_context task2 = {

6858

.func=exited_func,

6859

.mandos_client_exited=&mandos_client_exited,

6860

};

6861

g_assert_true(add_to_queue(queue, task2));

6862

6863

g_assert_true(run_queue(&queue, &cancelled_filenames, &quit_now));

6864

g_assert_false(quit_now);

6865

g_assert_cmpuint((unsigned int)(queue->next_run), ==, 1);

6866

g_assert_true(mandos_client_exited);

6867

g_assert_cmpuint((unsigned int)(queue->length), ==, 0);

6868

}

6869

6870

static void test_run_queue_two_tasks_quit(__attribute__((unused))

6871

test_fixture *fixture,

6872

__attribute__((unused))

6873

gconstpointer user_data){

6874

__attribute__((cleanup(cleanup_queue)))

6875

task_queue *queue = create_queue();

6876

g_assert_nonnull(queue);

6877

__attribute__((cleanup(string_set_clear)))

6878

string_set cancelled_filenames = {};

6879

bool quit_now = false;

6880

bool mandos_client_exited = false;

6881

bool password_is_read = false;

6882

6883

__attribute__((nonnull))

6884

void set_exited_func(const task_context task,

6885

__attribute__((unused)) task_queue *const q){

6886

*task.mandos_client_exited = true;

6887

*task.quit_now = true;

6888

}

6889

task_context task1 = {

6890

.func=set_exited_func,

6891

.quit_now=&quit_now,

6892

.mandos_client_exited=&mandos_client_exited,

6893

};

6894

g_assert_true(add_to_queue(queue, task1));

6895

6896

__attribute__((nonnull))

6897

void set_read_func(const task_context task,

6898

__attribute__((unused)) task_queue *const q){

6899

*task.quit_now = true;

6900

*task.password_is_read = true;

6901

}

6902

task_context task2 = {

6903

.func=set_read_func,

6904

.quit_now=&quit_now,

6905

.password_is_read=&password_is_read,

6906

};

6907

g_assert_true(add_to_queue(queue, task2));

6908

6909

g_assert_false(run_queue(&queue, &cancelled_filenames, &quit_now));

6910

g_assert_true(quit_now);

6911

g_assert_true(mandos_client_exited xor password_is_read);

6912

g_assert_cmpuint((unsigned int)(queue->length), ==, 0);

6913

}

6914

6915

static void test_run_queue_two_tasks_cleanup(__attribute__((unused))

6916

test_fixture *fixture,

6917

__attribute__((unused))

6918

gconstpointer user_data){

6919

__attribute__((cleanup(cleanup_queue)))

6920

task_queue *queue = create_queue();

6921

g_assert_nonnull(queue);

6922

__attribute__((cleanup(string_set_clear)))

6923

string_set cancelled_filenames = {};

6924

int pipefds[2];

6925

g_assert_cmpint(pipe2(pipefds, O_CLOEXEC | O_NONBLOCK), ==, 0);

6926

__attribute__((cleanup(cleanup_close)))

6927

const int read_pipe = pipefds[0];

6928

__attribute__((cleanup(cleanup_close)))

6929

const int write_pipe = pipefds[1];

6930

bool quit_now = false;

6931

6932

__attribute__((nonnull))

6933

void read_func(const task_context task,

6934

__attribute__((unused)) task_queue *const q){

6935

*task.quit_now = true;

6936

}

6937

task_context task1 = {

6938

.func=read_func,

6939

.quit_now=&quit_now,

6940

.fd=read_pipe,

6941

};

6942

g_assert_true(add_to_queue(queue, task1));

6943

6944

__attribute__((nonnull))

6945

void write_func(const task_context task,

6946

__attribute__((unused)) task_queue *const q){

6947

*task.quit_now = true;

6948

}

6949

task_context task2 = {

6950

.func=write_func,

6951

.quit_now=&quit_now,

6952

.fd=write_pipe,

6953

};

6954

g_assert_true(add_to_queue(queue, task2));

6955

6956

g_assert_false(run_queue(&queue, &cancelled_filenames, &quit_now));

6957

g_assert_true(quit_now);

6958

6959

/* Either read_pipe or write_pipe should be closed already */

6960

errno = 0;

6961

bool close_read_pipe = (close(read_pipe) == -1);

6962

close_read_pipe &= (errno == EBADF);

6963

errno = 0;

6964

bool close_write_pipe = (close(write_pipe) == -1);

6965

close_write_pipe &= (errno == EBADF);

6966

g_assert_true(close_read_pipe xor close_write_pipe);

6967

g_assert_cmpuint((unsigned int)(queue->length), ==, 0);

6968

}

6969

6970

static void test_setup_signal_handler(__attribute__((unused))

6971

test_fixture *fixture,

6972

__attribute__((unused))

6973

gconstpointer user_data){

6974

/* Save current SIGCHLD action, whatever it is */

6975

struct sigaction expected_sigchld_action;

6976

g_assert_cmpint(sigaction(SIGCHLD, NULL, &expected_sigchld_action),

6977

==, 0);

6978

6979

/* Act; i.e. run the setup_signal_handler() function */

6980

struct sigaction actual_old_sigchld_action;

6981

g_assert_true(setup_signal_handler(&actual_old_sigchld_action));

6982

6983

/* Check that the function correctly set "actual_old_sigchld_action"

6984

to the same values as the previously saved

6985

"expected_sigchld_action" */

6986

/* Check member sa_handler */

6987

g_assert_true(actual_old_sigchld_action.sa_handler

6988

== expected_sigchld_action.sa_handler);

6989

/* Check member sa_mask */

6990

for(int signum = 1; signum < NSIG; signum++){

6991

const int expected_old_block_state

6992

= sigismember(&expected_sigchld_action.sa_mask, signum);

6993

g_assert_cmpint(expected_old_block_state, >=, 0);

6994

const int actual_old_block_state

6995

= sigismember(&actual_old_sigchld_action.sa_mask, signum);

6996

g_assert_cmpint(actual_old_block_state, >=, 0);

6997

g_assert_cmpint(actual_old_block_state,

6998

==, expected_old_block_state);

6999

}

7000

/* Check member sa_flags */

7001

g_assert_true((actual_old_sigchld_action.sa_flags

7002

& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART))

7003

== (expected_sigchld_action.sa_flags

7004

& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART)));

7005

7006

/* Retrieve the current signal handler for SIGCHLD as set by

7007

setup_signal_handler() */

7008

struct sigaction actual_new_sigchld_action;

7009

g_assert_cmpint(sigaction(SIGCHLD, NULL,

7010

&actual_new_sigchld_action), ==, 0);

7011

/* Check that the signal handler (member sa_handler) is correctly

7012

set to the "handle_sigchld" function */

7013

g_assert_true(actual_new_sigchld_action.sa_handler != SIG_DFL);

7014

g_assert_true(actual_new_sigchld_action.sa_handler != SIG_IGN);

7015

g_assert_true(actual_new_sigchld_action.sa_handler

7016

== handle_sigchld);

7017

/* Check (in member sa_mask) that at least a handful of signals are

7018

actually blocked during the signal handler */

7019

for(int signum = 1; signum < NSIG; signum++){

7020

int actual_new_block_state;

7021

switch(signum){

7022

case SIGTERM:

7023

case SIGINT:

7024

case SIGQUIT:

7025

case SIGHUP:

7026

actual_new_block_state

7027

= sigismember(&actual_new_sigchld_action.sa_mask, signum);

7028

g_assert_cmpint(actual_new_block_state, ==, 1);

7029

continue;

7030

case SIGKILL: /* non-blockable */

7031

case SIGSTOP: /* non-blockable */

7032

case SIGCHLD: /* always blocked */

7033

default:

7034

continue;

7035

}

7036

}

7037

/* Check member sa_flags */

7038

g_assert_true((actual_new_sigchld_action.sa_flags

7039

& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART))

7040

== (SA_NOCLDSTOP | SA_RESTART));

7041

7042

/* Restore signal handler */

7043

g_assert_cmpint(sigaction(SIGCHLD, &expected_sigchld_action, NULL),

7044

==, 0);

7045

}

7046

7047

static void test_restore_signal_handler(__attribute__((unused))

7048

test_fixture *fixture,

7049

__attribute__((unused))

7050

gconstpointer user_data){

7051

/* Save current SIGCHLD action, whatever it is */

7052

struct sigaction expected_sigchld_action;

7053

g_assert_cmpint(sigaction(SIGCHLD, NULL, &expected_sigchld_action),

7054

==, 0);

7055

/* Since we haven't established a signal handler yet, there should

7056

not be one established. But another test may have relied on

7057

restore_signal_handler() to restore the signal handler, and if

7058

restore_signal_handler() is buggy (which we should be prepared

7059

for in this test) the signal handler may not have been restored

7060

properly; check for this: */

7061

g_assert_true(expected_sigchld_action.sa_handler != handle_sigchld);

7062

7063

/* Establish a signal handler */

7064

struct sigaction sigchld_action = {

7065

.sa_handler=handle_sigchld,

7066

.sa_flags=SA_RESTART | SA_NOCLDSTOP,

7067

};

7068

g_assert_cmpint(sigfillset(&sigchld_action.sa_mask), ==, 0);

7069

g_assert_cmpint(sigaction(SIGCHLD, &sigchld_action, NULL), ==, 0);

7070

7071

/* Act; i.e. run the restore_signal_handler() function */

7072

g_assert_true(restore_signal_handler(&expected_sigchld_action));

7073

7074

/* Retrieve the restored signal handler data */

7075

struct sigaction actual_restored_sigchld_action;

7076

g_assert_cmpint(sigaction(SIGCHLD, NULL,

7077

&actual_restored_sigchld_action), ==, 0);

7078

7079

/* Check that the function correctly restored the signal action, as

7080

saved in "actual_restored_sigchld_action", to the same values as

7081

the previously saved "expected_sigchld_action" */

7082

/* Check member sa_handler */

7083

g_assert_true(actual_restored_sigchld_action.sa_handler

7084

== expected_sigchld_action.sa_handler);

7085

/* Check member sa_mask */

7086

for(int signum = 1; signum < NSIG; signum++){

7087

const int expected_old_block_state

7088

= sigismember(&expected_sigchld_action.sa_mask, signum);

7089

g_assert_cmpint(expected_old_block_state, >=, 0);

7090

const int actual_restored_block_state

7091

= sigismember(&actual_restored_sigchld_action.sa_mask, signum);

7092

g_assert_cmpint(actual_restored_block_state, >=, 0);

7093

g_assert_cmpint(actual_restored_block_state,

7094

==, expected_old_block_state);

7095

}

7096

/* Check member sa_flags */

7097

g_assert_true((actual_restored_sigchld_action.sa_flags

7098

& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART))

7099

== (expected_sigchld_action.sa_flags

7100

& (SA_NOCLDSTOP | SA_ONSTACK | SA_RESTART)));

7101

}

7102

7103

static void test_block_sigchld(__attribute__((unused))

7104

test_fixture *fixture,

7105

__attribute__((unused))

7106

gconstpointer user_data){

7107

/* Save original signal mask */

7108

sigset_t expected_sigmask;

7109

g_assert_cmpint(pthread_sigmask(-1, NULL, &expected_sigmask),

7110

==, 0);

7111

7112

/* Make sure SIGCHLD is unblocked for this test */

7113

sigset_t sigchld_sigmask;

7114

g_assert_cmpint(sigemptyset(&sigchld_sigmask), ==, 0);

7115

g_assert_cmpint(sigaddset(&sigchld_sigmask, SIGCHLD), ==, 0);

7116

g_assert_cmpint(pthread_sigmask(SIG_UNBLOCK, &sigchld_sigmask,

7117

NULL), ==, 0);

7118

7119

/* Act; i.e. run the block_sigchld() function */

7120

sigset_t actual_old_sigmask;

7121

g_assert_true(block_sigchld(&actual_old_sigmask));

7122

7123

/* Check the actual_old_sigmask; it should be the same as the

7124

previously saved signal mask "expected_sigmask". */

7125

for(int signum = 1; signum < NSIG; signum++){

7126

const int expected_old_block_state

7127

= sigismember(&expected_sigmask, signum);

7128

g_assert_cmpint(expected_old_block_state, >=, 0);

7129

const int actual_old_block_state

7130

= sigismember(&actual_old_sigmask, signum);

7131

g_assert_cmpint(actual_old_block_state, >=, 0);

7132

g_assert_cmpint(actual_old_block_state,

7133

==, expected_old_block_state);

7134

}

7135

7136

/* Retrieve the newly set signal mask */

7137

sigset_t actual_sigmask;

7138

g_assert_cmpint(pthread_sigmask(-1, NULL, &actual_sigmask), ==, 0);

7139

7140

/* SIGCHLD should be blocked */

7141

g_assert_cmpint(sigismember(&actual_sigmask, SIGCHLD), ==, 1);

7142

7143

/* Restore signal mask */

7144

g_assert_cmpint(pthread_sigmask(SIG_SETMASK, &expected_sigmask,

7145

NULL), ==, 0);

7146

}

7147

7148

static void test_restore_sigmask(__attribute__((unused))

7149

test_fixture *fixture,

7150

__attribute__((unused))

7151

gconstpointer user_data){

7152

/* Save original signal mask */

7153

sigset_t orig_sigmask;

7154

g_assert_cmpint(pthread_sigmask(-1, NULL, &orig_sigmask), ==, 0);

7155

7156

/* Make sure SIGCHLD is blocked for this test */

7157

sigset_t sigchld_sigmask;

7158

g_assert_cmpint(sigemptyset(&sigchld_sigmask), ==, 0);

7159

g_assert_cmpint(sigaddset(&sigchld_sigmask, SIGCHLD), ==, 0);

7160

g_assert_cmpint(pthread_sigmask(SIG_BLOCK, &sigchld_sigmask,

7161

NULL), ==, 0);

7162

7163

/* Act; i.e. run the restore_sigmask() function */

7164

g_assert_true(restore_sigmask(&orig_sigmask));

7165

7166

/* Retrieve the newly restored signal mask */

7167

sigset_t restored_sigmask;

7168

g_assert_cmpint(pthread_sigmask(-1, NULL, &restored_sigmask),

7169

==, 0);

7170

7171

/* Check the restored_sigmask; it should be the same as the

7172

previously saved signal mask "orig_sigmask". */

7173

for(int signum = 1; signum < NSIG; signum++){

7174

const int orig_block_state = sigismember(&orig_sigmask, signum);

7175

g_assert_cmpint(orig_block_state, >=, 0);

7176

const int restored_block_state = sigismember(&restored_sigmask,

7177

signum);

7178

g_assert_cmpint(restored_block_state, >=, 0);

7179

g_assert_cmpint(restored_block_state, ==, orig_block_state);

7180

}

7181

7182

/* Restore signal mask */

7183

g_assert_cmpint(pthread_sigmask(SIG_SETMASK, &orig_sigmask,

7184

NULL), ==, 0);

7185

}

7186

7187

static void test_parse_arguments_noargs(__attribute__((unused))

7188

test_fixture *fixture,

7189

__attribute__((unused))

7190

gconstpointer user_data){

7191

char *argv[] = {

7192

strdup("prgname"),

7193

NULL };

7194

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7195

7196

char *agent_directory = NULL;

7197

char *helper_directory = NULL;

7198

uid_t user = 0;

7199

gid_t group = 0;

7200

char *mandos_argz = NULL;

7201

size_t mandos_argz_length = 0;

7202

7203

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7204

&helper_directory, &user, &group,

7205

&mandos_argz, &mandos_argz_length));

7206

g_assert_null(agent_directory);

7207

g_assert_null(helper_directory);

7208

g_assert_true(user == 0);

7209

g_assert_true(group == 0);

7210

g_assert_null(mandos_argz);

7211

g_assert_true(mandos_argz_length == 0);

7212

7213

for(char **arg = argv; *arg != NULL; arg++){

7214

free(*arg);

7215

}

7216

}

7217

7218

__attribute__((nonnull))

7219

static bool parse_arguments_devnull(int argc, char *argv[],

7220

const bool exit_failure,

7221

char **agent_directory,

7222

char **helper_directory,

7223

uid_t *const user,

7224

gid_t *const group,

7225

char **mandos_argz,

7226

size_t *mandos_argz_length){

7227

7228

FILE *real_stderr = stderr;

7229

FILE *devnull = fopen("/dev/null", "we");

7230

g_assert_nonnull(devnull);

7231

stderr = devnull;

7232

7233

const bool ret = parse_arguments(argc, argv, exit_failure,

7234

agent_directory,

7235

helper_directory, user, group,

7236

mandos_argz, mandos_argz_length);

7237

const error_t saved_errno = errno;

7238

7239

stderr = real_stderr;

7240

g_assert_cmpint(fclose(devnull), ==, 0);

7241

7242

errno = saved_errno;

7243

7244

return ret;

7245

}

7246

7247

static void test_parse_arguments_invalid(__attribute__((unused))

7248

test_fixture *fixture,

7249

__attribute__((unused))

7250

gconstpointer user_data){

7251

char *argv[] = {

7252

strdup("prgname"),

7253

strdup("--invalid"),

7254

NULL };

7255

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7256

7257

char *agent_directory = NULL;

7258

char *helper_directory = NULL;

7259

uid_t user = 0;

7260

gid_t group = 0;

7261

char *mandos_argz = NULL;

7262

size_t mandos_argz_length = 0;

7263

7264

g_assert_false(parse_arguments_devnull(argc, argv, false,

7265

&agent_directory,

7266

&helper_directory, &user,

7267

&group, &mandos_argz,

7268

&mandos_argz_length));

7269

7270

g_assert_true(errno == EINVAL);

7271

g_assert_null(agent_directory);

7272

g_assert_null(helper_directory);

7273

g_assert_null(mandos_argz);

7274

g_assert_true(mandos_argz_length == 0);

7275

7276

for(char **arg = argv; *arg != NULL; arg++){

7277

free(*arg);

7278

}

7279

}

7280

7281

static void test_parse_arguments_long_dir(__attribute__((unused))

7282

test_fixture *fixture,

7283

__attribute__((unused))

7284

gconstpointer user_data){

7285

char *argv[] = {

7286

strdup("prgname"),

7287

strdup("--agent-directory"),

7288

strdup("/tmp"),

7289

NULL };

7290

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7291

7292

__attribute__((cleanup(cleanup_string)))

7293

char *agent_directory = NULL;

7294

char *helper_directory = NULL;

7295

uid_t user = 0;

7296

gid_t group = 0;

7297

__attribute__((cleanup(cleanup_string)))

7298

char *mandos_argz = NULL;

7299

size_t mandos_argz_length = 0;

7300

7301

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7302

&helper_directory, &user, &group,

7303

&mandos_argz, &mandos_argz_length));

7304

7305

g_assert_cmpstr(agent_directory, ==, "/tmp");

7306

g_assert_null(helper_directory);

7307

g_assert_true(user == 0);

7308

g_assert_true(group == 0);

7309

g_assert_null(mandos_argz);

7310

g_assert_true(mandos_argz_length == 0);

7311

7312

for(char **arg = argv; *arg != NULL; arg++){

7313

free(*arg);

7314

}

7315

}

7316

7317

static void test_parse_arguments_short_dir(__attribute__((unused))

7318

test_fixture *fixture,

7319

__attribute__((unused))

7320

gconstpointer user_data){

7321

char *argv[] = {

7322

strdup("prgname"),

7323

strdup("-d"),

7324

strdup("/tmp"),

7325

NULL };

7326

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7327

7328

__attribute__((cleanup(cleanup_string)))

7329

char *agent_directory = NULL;

7330

char *helper_directory = NULL;

7331

uid_t user = 0;

7332

gid_t group = 0;

7333

__attribute__((cleanup(cleanup_string)))

7334

char *mandos_argz = NULL;

7335

size_t mandos_argz_length = 0;

7336

7337

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7338

&helper_directory, &user, &group,

7339

&mandos_argz, &mandos_argz_length));

7340

7341

g_assert_cmpstr(agent_directory, ==, "/tmp");

7342

g_assert_null(helper_directory);

7343

g_assert_true(user == 0);

7344

g_assert_true(group == 0);

7345

g_assert_null(mandos_argz);

7346

g_assert_true(mandos_argz_length == 0);

7347

7348

for(char **arg = argv; *arg != NULL; arg++){

7349

free(*arg);

7350

}

7351

}

7352

7353

static

7354

void test_parse_arguments_helper_directory(__attribute__((unused))

7355

test_fixture *fixture,

7356

__attribute__((unused))

7357

gconstpointer user_data){

7358

char *argv[] = {

7359

strdup("prgname"),

7360

strdup("--helper-directory"),

7361

strdup("/tmp"),

7362

NULL };

7363

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7364

7365

char *agent_directory = NULL;

7366

__attribute__((cleanup(cleanup_string)))

7367

char *helper_directory = NULL;

7368

uid_t user = 0;

7369

gid_t group = 0;

7370

__attribute__((cleanup(cleanup_string)))

7371

char *mandos_argz = NULL;

7372

size_t mandos_argz_length = 0;

7373

7374

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7375

&helper_directory, &user, &group,

7376

&mandos_argz, &mandos_argz_length));

7377

7378

g_assert_cmpstr(helper_directory, ==, "/tmp");

7379

g_assert_null(agent_directory);

7380

g_assert_true(user == 0);

7381

g_assert_true(group == 0);

7382

g_assert_null(mandos_argz);

7383

g_assert_true(mandos_argz_length == 0);

7384

7385

for(char **arg = argv; *arg != NULL; arg++){

7386

free(*arg);

7387

}

7388

}

7389

7390

static

7391

void test_parse_arguments_plugin_helper_dir(__attribute__((unused))

7392

test_fixture *fixture,

7393

__attribute__((unused))

7394

gconstpointer user_data){

7395

char *argv[] = {

7396

strdup("prgname"),

7397

strdup("--plugin-helper-dir"),

7398

strdup("/tmp"),

7399

NULL };

7400

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7401

7402

char *agent_directory = NULL;

7403

__attribute__((cleanup(cleanup_string)))

7404

char *helper_directory = NULL;

7405

uid_t user = 0;

7406

gid_t group = 0;

7407

__attribute__((cleanup(cleanup_string)))

7408

char *mandos_argz = NULL;

7409

size_t mandos_argz_length = 0;

7410

7411

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7412

&helper_directory, &user, &group,

7413

&mandos_argz, &mandos_argz_length));

7414

7415

g_assert_cmpstr(helper_directory, ==, "/tmp");

7416

g_assert_null(agent_directory);

7417

g_assert_true(user == 0);

7418

g_assert_true(group == 0);

7419

g_assert_null(mandos_argz);

7420

g_assert_true(mandos_argz_length == 0);

7421

7422

for(char **arg = argv; *arg != NULL; arg++){

7423

free(*arg);

7424

}

7425

}

7426

7427

static void test_parse_arguments_user(__attribute__((unused))

7428

test_fixture *fixture,

7429

__attribute__((unused))

7430

gconstpointer user_data){

7431

char *argv[] = {

7432

strdup("prgname"),

7433

strdup("--user"),

7434

strdup("1000"),

7435

NULL };

7436

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7437

7438

char *agent_directory = NULL;

7439

__attribute__((cleanup(cleanup_string)))

7440

char *helper_directory = NULL;

7441

uid_t user = 0;

7442

gid_t group = 0;

7443

__attribute__((cleanup(cleanup_string)))

7444

char *mandos_argz = NULL;

7445

size_t mandos_argz_length = 0;

7446

7447

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7448

&helper_directory, &user, &group,

7449

&mandos_argz, &mandos_argz_length));

7450

7451

g_assert_null(helper_directory);

7452

g_assert_null(agent_directory);

7453

g_assert_cmpuint((unsigned int)user, ==, 1000);

7454

g_assert_true(group == 0);

7455

g_assert_null(mandos_argz);

7456

g_assert_true(mandos_argz_length == 0);

7457

7458

for(char **arg = argv; *arg != NULL; arg++){

7459

free(*arg);

7460

}

7461

}

7462

7463

static void test_parse_arguments_user_invalid(__attribute__((unused))

7464

test_fixture *fixture,

7465

__attribute__((unused))

7466

gconstpointer

7467

user_data){

7468

char *argv[] = {

7469

strdup("prgname"),

7470

strdup("--user"),

7471

strdup("invalid"),

7472

NULL };

7473

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7474

7475

char *agent_directory = NULL;

7476

__attribute__((cleanup(cleanup_string)))

7477

char *helper_directory = NULL;

7478

uid_t user = 0;

7479

gid_t group = 0;

7480

__attribute__((cleanup(cleanup_string)))

7481

char *mandos_argz = NULL;

7482

size_t mandos_argz_length = 0;

7483

7484

g_assert_false(parse_arguments_devnull(argc, argv, false,

7485

&agent_directory,

7486

&helper_directory, &user,

7487

&group, &mandos_argz,

7488

&mandos_argz_length));

7489

7490

g_assert_null(helper_directory);

7491

g_assert_null(agent_directory);

7492

g_assert_cmpuint((unsigned int)user, ==, 0);

7493

g_assert_true(group == 0);

7494

g_assert_null(mandos_argz);

7495

g_assert_true(mandos_argz_length == 0);

7496

7497

for(char **arg = argv; *arg != NULL; arg++){

7498

free(*arg);

7499

}

7500

}

7501

7502

static

7503

void test_parse_arguments_user_zero_invalid(__attribute__((unused))

7504

test_fixture *fixture,

7505

__attribute__((unused))

7506

gconstpointer user_data){

7507

char *argv[] = {

7508

strdup("prgname"),

7509

strdup("--user"),

7510

strdup("0"),

7511

NULL };

7512

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7513

7514

char *agent_directory = NULL;

7515

__attribute__((cleanup(cleanup_string)))

7516

char *helper_directory = NULL;

7517

uid_t user = 0;

7518

gid_t group = 0;

7519

__attribute__((cleanup(cleanup_string)))

7520

char *mandos_argz = NULL;

7521

size_t mandos_argz_length = 0;

7522

7523

g_assert_false(parse_arguments_devnull(argc, argv, false,

7524

&agent_directory,

7525

&helper_directory, &user,

7526

&group, &mandos_argz,

7527

&mandos_argz_length));

7528

7529

g_assert_null(helper_directory);

7530

g_assert_null(agent_directory);

7531

g_assert_cmpuint((unsigned int)user, ==, 0);

7532

g_assert_true(group == 0);

7533

g_assert_null(mandos_argz);

7534

g_assert_true(mandos_argz_length == 0);

7535

7536

for(char **arg = argv; *arg != NULL; arg++){

7537

free(*arg);

7538

}

7539

}

7540

7541

static void test_parse_arguments_group(__attribute__((unused))

7542

test_fixture *fixture,

7543

__attribute__((unused))

7544

gconstpointer user_data){

7545

char *argv[] = {

7546

strdup("prgname"),

7547

strdup("--group"),

7548

strdup("1000"),

7549

NULL };

7550

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7551

7552

char *agent_directory = NULL;

7553

__attribute__((cleanup(cleanup_string)))

7554

char *helper_directory = NULL;

7555

uid_t user = 0;

7556

gid_t group = 0;

7557

__attribute__((cleanup(cleanup_string)))

7558

char *mandos_argz = NULL;

7559

size_t mandos_argz_length = 0;

7560

7561

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7562

&helper_directory, &user, &group,

7563

&mandos_argz, &mandos_argz_length));

7564

7565

g_assert_null(helper_directory);

7566

g_assert_null(agent_directory);

7567

g_assert_true(user == 0);

7568

g_assert_cmpuint((unsigned int)group, ==, 1000);

7569

g_assert_null(mandos_argz);

7570

g_assert_true(mandos_argz_length == 0);

7571

7572

for(char **arg = argv; *arg != NULL; arg++){

7573

free(*arg);

7574

}

7575

}

7576

7577

static void test_parse_arguments_group_invalid(__attribute__((unused))

7578

test_fixture *fixture,

7579

__attribute__((unused))

7580

gconstpointer

7581

user_data){

7582

char *argv[] = {

7583

strdup("prgname"),

7584

strdup("--group"),

7585

strdup("invalid"),

7586

NULL };

7587

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7588

7589

char *agent_directory = NULL;

7590

__attribute__((cleanup(cleanup_string)))

7591

char *helper_directory = NULL;

7592

uid_t user = 0;

7593

gid_t group = 0;

7594

__attribute__((cleanup(cleanup_string)))

7595

char *mandos_argz = NULL;

7596

size_t mandos_argz_length = 0;

7597

7598

g_assert_false(parse_arguments_devnull(argc, argv, false,

7599

&agent_directory,

7600

&helper_directory, &user,

7601

&group, &mandos_argz,

7602

&mandos_argz_length));

7603

7604

g_assert_null(helper_directory);

7605

g_assert_null(agent_directory);

7606

g_assert_true(user == 0);

7607

g_assert_true(group == 0);

7608

g_assert_null(mandos_argz);

7609

g_assert_true(mandos_argz_length == 0);

7610

7611

for(char **arg = argv; *arg != NULL; arg++){

7612

free(*arg);

7613

}

7614

}

7615

7616

static

7617

void test_parse_arguments_group_zero_invalid(__attribute__((unused))

7618

test_fixture *fixture,

7619

__attribute__((unused))

7620

gconstpointer user_data){

7621

char *argv[] = {

7622

strdup("prgname"),

7623

strdup("--group"),

7624

strdup("0"),

7625

NULL };

7626

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7627

7628

char *agent_directory = NULL;

7629

__attribute__((cleanup(cleanup_string)))

7630

char *helper_directory = NULL;

7631

uid_t user = 0;

7632

gid_t group = 0;

7633

__attribute__((cleanup(cleanup_string)))

7634

char *mandos_argz = NULL;

7635

size_t mandos_argz_length = 0;

7636

7637

g_assert_false(parse_arguments_devnull(argc, argv, false,

7638

&agent_directory,

7639

&helper_directory, &user,

7640

&group, &mandos_argz,

7641

&mandos_argz_length));

7642

7643

g_assert_null(helper_directory);

7644

g_assert_null(agent_directory);

7645

g_assert_cmpuint((unsigned int)group, ==, 0);

7646

g_assert_true(group == 0);

7647

g_assert_null(mandos_argz);

7648

g_assert_true(mandos_argz_length == 0);

7649

7650

for(char **arg = argv; *arg != NULL; arg++){

7651

free(*arg);

7652

}

7653

}

7654

7655

static void test_parse_arguments_mandos_noargs(__attribute__((unused))

7656

test_fixture *fixture,

7657

__attribute__((unused))

7658

gconstpointer

7659

user_data){

7660

char *argv[] = {

7661

strdup("prgname"),

7662

strdup("mandos-client"),

7663

NULL };

7664

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7665

7666

__attribute__((cleanup(cleanup_string)))

7667

char *agent_directory = NULL;

7668

__attribute__((cleanup(cleanup_string)))

7669

char *helper_directory = NULL;

7670

uid_t user = 0;

7671

gid_t group = 0;

7672

__attribute__((cleanup(cleanup_string)))

7673

char *mandos_argz = NULL;

7674

size_t mandos_argz_length = 0;

7675

7676

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7677

&helper_directory, &user, &group,

7678

&mandos_argz, &mandos_argz_length));

7679

7680

g_assert_null(agent_directory);

7681

g_assert_null(helper_directory);

7682

g_assert_true(user == 0);

7683

g_assert_true(group == 0);

7684

g_assert_cmpstr(mandos_argz, ==, "mandos-client");

7685

g_assert_cmpuint((unsigned int)argz_count(mandos_argz,

7686

mandos_argz_length),

7687

==, 1);

7688

7689

for(char **arg = argv; *arg != NULL; arg++){

7690

free(*arg);

7691

}

7692

}

7693

7694

static void test_parse_arguments_mandos_args(__attribute__((unused))

7695

test_fixture *fixture,

7696

__attribute__((unused))

7697

gconstpointer user_data){

7698

char *argv[] = {

7699

strdup("prgname"),

7700

strdup("mandos-client"),

7701

strdup("one"),

7702

strdup("two"),

7703

strdup("three"),

7704

NULL };

7705

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7706

7707

__attribute__((cleanup(cleanup_string)))

7708

char *agent_directory = NULL;

7709

__attribute__((cleanup(cleanup_string)))

7710

char *helper_directory = NULL;

7711

uid_t user = 0;

7712

gid_t group = 0;

7713

__attribute__((cleanup(cleanup_string)))

7714

char *mandos_argz = NULL;

7715

size_t mandos_argz_length = 0;

7716

7717

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7718

&helper_directory, &user, &group,

7719

&mandos_argz, &mandos_argz_length));

7720

7721

g_assert_null(agent_directory);

7722

g_assert_null(helper_directory);

7723

g_assert_true(user == 0);

7724

g_assert_true(group == 0);

7725

char *marg = mandos_argz;

7726

g_assert_cmpstr(marg, ==, "mandos-client");

7727

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7728

g_assert_cmpstr(marg, ==, "one");

7729

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7730

g_assert_cmpstr(marg, ==, "two");

7731

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7732

g_assert_cmpstr(marg, ==, "three");

7733

g_assert_cmpuint((unsigned int)argz_count(mandos_argz,

7734

mandos_argz_length),

7735

==, 4);

7736

7737

for(char **arg = argv; *arg != NULL; arg++){

7738

free(*arg);

7739

}

7740

}

7741

7742

static void test_parse_arguments_all_args(__attribute__((unused))

7743

test_fixture *fixture,

7744

__attribute__((unused))

7745

gconstpointer user_data){

7746

char *argv[] = {

7747

strdup("prgname"),

7748

strdup("--agent-directory"),

7749

strdup("/tmp"),

7750

strdup("--helper-directory"),

7751

strdup("/var/tmp"),

7752

strdup("--user"),

7753

strdup("1"),

7754

strdup("--group"),

7755

strdup("2"),

7756

strdup("mandos-client"),

7757

strdup("one"),

7758

strdup("two"),

7759

strdup("three"),

7760

NULL };

7761

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7762

7763

__attribute__((cleanup(cleanup_string)))

7764

char *agent_directory = NULL;

7765

__attribute__((cleanup(cleanup_string)))

7766

char *helper_directory = NULL;

7767

uid_t user = 0;

7768

gid_t group = 0;

7769

__attribute__((cleanup(cleanup_string)))

7770

char *mandos_argz = NULL;

7771

size_t mandos_argz_length = 0;

7772

7773

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7774

&helper_directory, &user, &group,

7775

&mandos_argz, &mandos_argz_length));

7776

7777

g_assert_cmpstr(agent_directory, ==, "/tmp");

7778

g_assert_cmpstr(helper_directory, ==, "/var/tmp");

7779

g_assert_true(user == 1);

7780

g_assert_true(group == 2);

7781

char *marg = mandos_argz;

7782

g_assert_cmpstr(marg, ==, "mandos-client");

7783

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7784

g_assert_cmpstr(marg, ==, "one");

7785

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7786

g_assert_cmpstr(marg, ==, "two");

7787

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7788

g_assert_cmpstr(marg, ==, "three");

7789

g_assert_cmpuint((unsigned int)argz_count(mandos_argz,

7790

mandos_argz_length),

7791

==, 4);

7792

7793

for(char **arg = argv; *arg != NULL; arg++){

7794

free(*arg);

7795

}

7796

}

7797

7798

static void test_parse_arguments_mixed(__attribute__((unused))

7799

test_fixture *fixture,

7800

__attribute__((unused))

7801

gconstpointer user_data){

7802

char *argv[] = {

7803

strdup("prgname"),

7804

strdup("mandos-client"),

7805

strdup("--user"),

7806

strdup("1"),

7807

strdup("one"),

7808

strdup("--agent-directory"),

7809

strdup("/tmp"),

7810

strdup("two"),

7811

strdup("three"),

7812

strdup("--helper-directory=/var/tmp"),

7813

NULL };

7814

const int argc = (sizeof(argv) / sizeof(char *)) - 1;

7815

7816

__attribute__((cleanup(cleanup_string)))

7817

char *agent_directory = NULL;

7818

__attribute__((cleanup(cleanup_string)))

7819

char *helper_directory = NULL;

7820

uid_t user = 0;

7821

gid_t group = 0;

7822

__attribute__((cleanup(cleanup_string)))

7823

char *mandos_argz = NULL;

7824

size_t mandos_argz_length = 0;

7825

7826

g_assert_true(parse_arguments(argc, argv, false, &agent_directory,

7827

&helper_directory, &user, &group,

7828

&mandos_argz, &mandos_argz_length));

7829

7830

g_assert_cmpstr(agent_directory, ==, "/tmp");

7831

g_assert_cmpstr(helper_directory, ==, "/var/tmp");

7832

g_assert_true(user == 1);

7833

g_assert_true(group == 0);

7834

char *marg = mandos_argz;

7835

g_assert_cmpstr(marg, ==, "mandos-client");

7836

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7837

g_assert_cmpstr(marg, ==, "one");

7838

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7839

g_assert_cmpstr(marg, ==, "two");

7840

marg = argz_next(mandos_argz, mandos_argz_length, marg);

7841

g_assert_cmpstr(marg, ==, "three");

7842

g_assert_cmpuint((unsigned int)argz_count(mandos_argz,

7843

mandos_argz_length),

7844

==, 4);

7845

7846

for(char **arg = argv; *arg != NULL; arg++){

7847

free(*arg);

7848

}

7849

}

7850

7851

/* End of tests section */

7852

7853

/* Test boilerplate section; New tests should be added to the test

7854

suite definition here, in the "run_tests" function.

7855

7856

Finally, this section also contains the should_only_run_tests()

7857

function used by main() for deciding if tests should be run or to

7858

start normally. */

7859

7860

__attribute__((cold))

7861

static bool run_tests(int argc, char *argv[]){

7862

g_test_init(&argc, &argv, NULL);

7863

7864

/* A macro to add a test with no setup or teardown functions */

7865

#define test_add(testpath, testfunc) \

7866

do { \

7867

g_test_add((testpath), test_fixture, NULL, NULL, \

7868

(testfunc), NULL); \

7869

} while(false)

7870

7871

/* Test the signal-related functions first, since some other tests

7872

depend on these functions in their setups and teardowns */

7873

test_add("/signal-handling/setup", test_setup_signal_handler);

7874

test_add("/signal-handling/restore", test_restore_signal_handler);

7875

test_add("/signal-handling/block", test_block_sigchld);

7876

test_add("/signal-handling/restore-sigmask", test_restore_sigmask);

7877

7878

/* Regular non-signal-related tests; these use no setups or

7879

teardowns */

7880

test_add("/parse_arguments/noargs", test_parse_arguments_noargs);

7881

test_add("/parse_arguments/invalid", test_parse_arguments_invalid);

7882

test_add("/parse_arguments/long-dir",

7883

test_parse_arguments_long_dir);

7884

test_add("/parse_arguments/short-dir",

7885

test_parse_arguments_short_dir);

7886

test_add("/parse_arguments/helper-directory",

7887

test_parse_arguments_helper_directory);

7888

test_add("/parse_arguments/plugin-helper-dir",

7889

test_parse_arguments_plugin_helper_dir);

7890

test_add("/parse_arguments/user", test_parse_arguments_user);

7891

test_add("/parse_arguments/user-invalid",

7892

test_parse_arguments_user_invalid);

7893

test_add("/parse_arguments/user-zero-invalid",

7894

test_parse_arguments_user_zero_invalid);

7895

test_add("/parse_arguments/group", test_parse_arguments_group);

7896

test_add("/parse_arguments/group-invalid",

7897

test_parse_arguments_group_invalid);

7898

test_add("/parse_arguments/group-zero-invalid",

7899

test_parse_arguments_group_zero_invalid);

7900

test_add("/parse_arguments/mandos-noargs",

7901

test_parse_arguments_mandos_noargs);

7902

test_add("/parse_arguments/mandos-args",

7903

test_parse_arguments_mandos_args);

7904

test_add("/parse_arguments/all-args",

7905

test_parse_arguments_all_args);

7906

test_add("/parse_arguments/mixed", test_parse_arguments_mixed);

7907

test_add("/queue/create", test_create_queue);

7908

test_add("/queue/add", test_add_to_queue);

7909

test_add("/queue/add/overflow", test_add_to_queue_overflow);

7910

test_add("/queue/has_question/empty",

7911

test_queue_has_question_empty);

7912

test_add("/queue/has_question/false",

7913

test_queue_has_question_false);

7914

test_add("/queue/has_question/true", test_queue_has_question_true);

7915

test_add("/queue/has_question/false2",

7916

test_queue_has_question_false2);

7917

test_add("/queue/has_question/true2",

7918

test_queue_has_question_true2);

7919

test_add("/buffer/cleanup", test_cleanup_buffer);

7920

test_add("/string_set/net-set-contains-nothing",

7921

test_string_set_new_set_contains_nothing);

7922

test_add("/string_set/with-added-string-contains-it",

7923

test_string_set_with_added_string_contains_it);

7924

test_add("/string_set/cleared-does-not-contain-string",

7925

test_string_set_cleared_does_not_contain_str);

7926

test_add("/string_set/swap/one-with-empty",

7927

test_string_set_swap_one_with_empty);

7928

test_add("/string_set/swap/empty-with-one",

7929

test_string_set_swap_empty_with_one);

7930

test_add("/string_set/swap/one-with-one",

7931

test_string_set_swap_one_with_one);

7932

7933

/* A macro to add a test using the setup and teardown functions */

7934

#define test_add_st(path, func) \

7935

do { \

7936

g_test_add((path), test_fixture, NULL, test_setup, (func), \

7937

test_teardown); \

7938

} while(false)

7939

7940

/* Signal-related tests; these use setups and teardowns which

7941

establish, during each test run, a signal handler for, and a

7942

signal mask blocking, the SIGCHLD signal, just like main() */

7943

test_add_st("/wait_for_event/timeout", test_wait_for_event_timeout);

7944

test_add_st("/wait_for_event/event", test_wait_for_event_event);

7945

test_add_st("/wait_for_event/sigchld", test_wait_for_event_sigchld);

7946

test_add_st("/run_queue/zeroes-next-run",

7947

test_run_queue_zeroes_next_run);

7948

test_add_st("/run_queue/clears-cancelled_filenames",

7949

test_run_queue_clears_cancelled_filenames);

7950

test_add_st("/run_queue/skips-cancelled-filenames",

7951

test_run_queue_skips_cancelled_filenames);

7952

test_add_st("/run_queue/one-task", test_run_queue_one_task);

7953

test_add_st("/run_queue/two-tasks", test_run_queue_two_tasks);

7954

test_add_st("/run_queue/two-tasks/quit",

7955

test_run_queue_two_tasks_quit);

7956

test_add_st("/run_queue/two-tasks-cleanup",

7957

test_run_queue_two_tasks_cleanup);

7958

test_add_st("/task-creators/start_mandos_client",

7959

test_start_mandos_client);

7960

test_add_st("/task-creators/start_mandos_client/execv",

7961

test_start_mandos_client_execv);

7962

test_add_st("/task-creators/start_mandos_client/suid/euid",

7963

test_start_mandos_client_suid_euid);

7964

test_add_st("/task-creators/start_mandos_client/suid/egid",

7965

test_start_mandos_client_suid_egid);

7966

test_add_st("/task-creators/start_mandos_client/suid/ruid",

7967

test_start_mandos_client_suid_ruid);

7968

test_add_st("/task-creators/start_mandos_client/suid/rgid",

7969

test_start_mandos_client_suid_rgid);

7970

test_add_st("/task-creators/start_mandos_client/read",

7971

test_start_mandos_client_read);

7972

test_add_st("/task-creators/start_mandos_client/helper-directory",

7973

test_start_mandos_client_helper_directory);

7974

test_add_st("/task-creators/start_mandos_client/sigmask",

7975

test_start_mandos_client_sigmask);

7976

test_add_st("/task/wait_for_mandos_client_exit/badpid",

7977

test_wait_for_mandos_client_exit_badpid);

7978

test_add_st("/task/wait_for_mandos_client_exit/noexit",

7979

test_wait_for_mandos_client_exit_noexit);

7980

test_add_st("/task/wait_for_mandos_client_exit/success",

7981

test_wait_for_mandos_client_exit_success);

7982

test_add_st("/task/wait_for_mandos_client_exit/failure",

7983

test_wait_for_mandos_client_exit_failure);

7984

test_add_st("/task/wait_for_mandos_client_exit/killed",

7985

test_wait_for_mandos_client_exit_killed);

7986

test_add_st("/task/read_mandos_client_output/readerror",

7987

test_read_mandos_client_output_readerror);

7988

test_add_st("/task/read_mandos_client_output/nodata",

7989

test_read_mandos_client_output_nodata);

7990

test_add_st("/task/read_mandos_client_output/eof",

7991

test_read_mandos_client_output_eof);

7992

test_add_st("/task/read_mandos_client_output/once",

7993

test_read_mandos_client_output_once);

7994

test_add_st("/task/read_mandos_client_output/malloc",

7995

test_read_mandos_client_output_malloc);

7996

test_add_st("/task/read_mandos_client_output/append",

7997

test_read_mandos_client_output_append);

7998

test_add_st("/task-creators/add_inotify_dir_watch",

7999

test_add_inotify_dir_watch);

8000

test_add_st("/task-creators/add_inotify_dir_watch/fail",

8001

test_add_inotify_dir_watch_fail);

8002

test_add_st("/task-creators/add_inotify_dir_watch/not-a-directory",

8003

test_add_inotify_dir_watch_nondir);

8004

test_add_st("/task-creators/add_inotify_dir_watch/EAGAIN",

8005

test_add_inotify_dir_watch_EAGAIN);

8006

test_add_st("/task-creators/add_inotify_dir_watch/IN_CLOSE_WRITE",

8007

test_add_inotify_dir_watch_IN_CLOSE_WRITE);

8008

test_add_st("/task-creators/add_inotify_dir_watch/IN_MOVED_TO",

8009

test_add_inotify_dir_watch_IN_MOVED_TO);

8010

test_add_st("/task-creators/add_inotify_dir_watch/IN_MOVED_FROM",

8011

test_add_inotify_dir_watch_IN_MOVED_FROM);

8012

test_add_st("/task-creators/add_inotify_dir_watch/IN_EXCL_UNLINK",

8013

test_add_inotify_dir_watch_IN_EXCL_UNLINK);

8014

test_add_st("/task-creators/add_inotify_dir_watch/IN_DELETE",

8015

test_add_inotify_dir_watch_IN_DELETE);

8016

test_add_st("/task/read_inotify_event/readerror",

8017

test_read_inotify_event_readerror);

8018

test_add_st("/task/read_inotify_event/bad-epoll",

8019

test_read_inotify_event_bad_epoll);

8020

test_add_st("/task/read_inotify_event/nodata",

8021

test_read_inotify_event_nodata);

8022

test_add_st("/task/read_inotify_event/eof",

8023

test_read_inotify_event_eof);

8024

test_add_st("/task/read_inotify_event/IN_CLOSE_WRITE",

8025

test_read_inotify_event_IN_CLOSE_WRITE);

8026

test_add_st("/task/read_inotify_event/IN_MOVED_TO",

8027

test_read_inotify_event_IN_MOVED_TO);

8028

test_add_st("/task/read_inotify_event/IN_MOVED_FROM",

8029

test_read_inotify_event_IN_MOVED_FROM);

8030

test_add_st("/task/read_inotify_event/IN_DELETE",

8031

test_read_inotify_event_IN_DELETE);

8032

test_add_st("/task/read_inotify_event/IN_CLOSE_WRITE/badname",

8033

test_read_inotify_event_IN_CLOSE_WRITE_badname);

8034

test_add_st("/task/read_inotify_event/IN_MOVED_TO/badname",

8035

test_read_inotify_event_IN_MOVED_TO_badname);

8036

test_add_st("/task/read_inotify_event/IN_MOVED_FROM/badname",

8037

test_read_inotify_event_IN_MOVED_FROM_badname);

8038

test_add_st("/task/read_inotify_event/IN_DELETE/badname",

8039

test_read_inotify_event_IN_DELETE_badname);

8040

test_add_st("/task/open_and_parse_question/ENOENT",

8041

test_open_and_parse_question_ENOENT);

8042

test_add_st("/task/open_and_parse_question/EIO",

8043

test_open_and_parse_question_EIO);

8044

test_add_st("/task/open_and_parse_question/parse-error",

8045

test_open_and_parse_question_parse_error);

8046

test_add_st("/task/open_and_parse_question/nosocket",

8047

test_open_and_parse_question_nosocket);

8048

test_add_st("/task/open_and_parse_question/badsocket",

8049

test_open_and_parse_question_badsocket);

8050

test_add_st("/task/open_and_parse_question/nopid",

8051

test_open_and_parse_question_nopid);

8052

test_add_st("/task/open_and_parse_question/badpid",

8053

test_open_and_parse_question_badpid);

8054

test_add_st("/task/open_and_parse_question/noexist_pid",

8055

test_open_and_parse_question_noexist_pid);

8056

test_add_st("/task/open_and_parse_question/no-notafter",

8057

test_open_and_parse_question_no_notafter);

8058

test_add_st("/task/open_and_parse_question/bad-notafter",

8059

test_open_and_parse_question_bad_notafter);

8060

test_add_st("/task/open_and_parse_question/notafter-0",

8061

test_open_and_parse_question_notafter_0);

8062

test_add_st("/task/open_and_parse_question/notafter-1",

8063

test_open_and_parse_question_notafter_1);

8064

test_add_st("/task/open_and_parse_question/notafter-1-1",

8065

test_open_and_parse_question_notafter_1_1);

8066

test_add_st("/task/open_and_parse_question/notafter-1-2",

8067

test_open_and_parse_question_notafter_1_2);

8068

test_add_st("/task/open_and_parse_question/equal-notafter",

8069

test_open_and_parse_question_equal_notafter);

8070

test_add_st("/task/open_and_parse_question/late-notafter",

8071

test_open_and_parse_question_late_notafter);

8072

test_add_st("/task/cancel_old_question/0-1-2",

8073

test_cancel_old_question_0_1_2);

8074

test_add_st("/task/cancel_old_question/0-2-1",

8075

test_cancel_old_question_0_2_1);

8076

test_add_st("/task/cancel_old_question/1-2-3",

8077

test_cancel_old_question_1_2_3);

8078

test_add_st("/task/cancel_old_question/1-3-2",

8079

test_cancel_old_question_1_3_2);

8080

test_add_st("/task/cancel_old_question/2-1-3",

8081

test_cancel_old_question_2_1_3);

8082

test_add_st("/task/cancel_old_question/2-3-1",

8083

test_cancel_old_question_2_3_1);

8084

test_add_st("/task/cancel_old_question/3-1-2",

8085

test_cancel_old_question_3_1_2);

8086

test_add_st("/task/cancel_old_question/3-2-1",

8087

test_cancel_old_question_3_2_1);

8088

test_add_st("/task/connect_question_socket/name-too-long",

8089

test_connect_question_socket_name_too_long);

8090

test_add_st("/task/connect_question_socket/connect-fail",

8091

test_connect_question_socket_connect_fail);

8092

test_add_st("/task/connect_question_socket/bad-epoll",

8093

test_connect_question_socket_bad_epoll);

8094

test_add_st("/task/connect_question_socket/usable",

8095

test_connect_question_socket_usable);

8096

test_add_st("/task/send_password_to_socket/client-not-exited",

8097

test_send_password_to_socket_client_not_exited);

8098

test_add_st("/task/send_password_to_socket/password-not-read",

8099

test_send_password_to_socket_password_not_read);

8100

test_add_st("/task/send_password_to_socket/EMSGSIZE",

8101

test_send_password_to_socket_EMSGSIZE);

8102

test_add_st("/task/send_password_to_socket/retry",

8103

test_send_password_to_socket_retry);

8104

test_add_st("/task/send_password_to_socket/bad-epoll",

8105

test_send_password_to_socket_bad_epoll);

8106

test_add_st("/task/send_password_to_socket/null-password",

8107

test_send_password_to_socket_null_password);

8108

test_add_st("/task/send_password_to_socket/empty-password",

8109

test_send_password_to_socket_empty_password);

8110

test_add_st("/task/send_password_to_socket/empty-str-password",

8111

test_send_password_to_socket_empty_str_pass);

8112

test_add_st("/task/send_password_to_socket/text-password",

8113

test_send_password_to_socket_text_password);

8114

test_add_st("/task/send_password_to_socket/binary-password",

8115

test_send_password_to_socket_binary_password);

8116

test_add_st("/task/send_password_to_socket/nuls-in-password",

8117

test_send_password_to_socket_nuls_in_password);

8118

test_add_st("/task-creators/add_existing_questions/ENOENT",

8119

test_add_existing_questions_ENOENT);

8120

test_add_st("/task-creators/add_existing_questions/no-questions",

8121

test_add_existing_questions_no_questions);

8122

test_add_st("/task-creators/add_existing_questions/one-question",

8123

test_add_existing_questions_one_question);

8124

test_add_st("/task-creators/add_existing_questions/two-questions",

8125

test_add_existing_questions_two_questions);

8126

test_add_st("/task-creators/add_existing_questions/non-questions",

8127

test_add_existing_questions_non_questions);

8128

test_add_st("/task-creators/add_existing_questions/both-types",

8129

test_add_existing_questions_both_types);

8130

8131

return g_test_run() == 0;

8132

}

8133

8134

static bool should_only_run_tests(int *argc_p, char **argv_p[]){

8135

GOptionContext *context = g_option_context_new("");

8136

8137

g_option_context_set_help_enabled(context, FALSE);

8138

g_option_context_set_ignore_unknown_options(context, TRUE);

8139

8140

gboolean should_run_tests = FALSE;

8141

GOptionEntry entries[] = {

8142

{ "test", 0, 0, G_OPTION_ARG_NONE,

8143

&should_run_tests, "Run tests", NULL },

8144

{ NULL }

8145

};

8146

g_option_context_add_main_entries(context, entries, NULL);

8147

8148

GError *error = NULL;

8149

8150

if(g_option_context_parse(context, argc_p, argv_p, &error) != TRUE){

8151

g_option_context_free(context);

8152

g_error("Failed to parse options: %s", error->message);

8153

}

8154

8155

g_option_context_free(context);

8156

return should_run_tests != FALSE;

8157

}