/mandos/trunk : revision 1220

2

/*

3

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

4

*

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6

5

6

7

*

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* This file is part of Mandos.

9

*

48

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

49

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

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

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ENAMETOOLONG, ENOENT, EEXIST,

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ECHILD, EPERM, ENOMEM, EAGAIN,

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EINTR, ENOBUFS, EADDRINUSE,

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ENAMETOOLONG, ENOENT, ENOTDIR,

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ENOMEM, EEXIST, ECHILD, EPERM,

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EAGAIN, EINTR, ENOBUFS, EADDRINUSE,

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ECONNREFUSED, ECONNRESET,

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ETOOMANYREFS, EMSGSIZE, EBADF,

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EINVAL */

73

ARGP_ERR_UNKNOWN, ARGP_KEY_ARGS,

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struct argp, argp_parse(),

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ARGP_NO_EXIT */

76

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

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

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

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STDOUT_FILENO, setresgid(),

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

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

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F_GETFD, F_GETFL, FD_CLOEXEC,

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open(), O_WRONLY, O_RDONLY */

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open(), O_WRONLY, O_NOCTTY,

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O_RDONLY, O_NOFOLLOW */

87

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

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WEXITSTATUS() */

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

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

91

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IN_CLOEXEC, inotify_add_watch(),

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IN_CLOSE_WRITE, IN_MOVED_TO,

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IN_DELETE, struct inotify_event */

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IN_MOVED_FROM, IN_DELETE,

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IN_EXCL_UNLINK, IN_ONLYDIR,

97

struct inotify_event */

94

98

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

95

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

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getline(), sscanf(), feof(),

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ferror(), fclose(), stderr,

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rename(), fdopen(), fprintf(),

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fscanf() */

99

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

100

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

101

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

102

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

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

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GError, g_key_file_load_from_file(),

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G_KEY_FILE_NONE, TRUE, G_FILE_ERROR_NOENT,

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mono_microsecs next_run;

146

149

} __attribute__((designated_init)) task_queue;

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150

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

151

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

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152

150

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

151

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this type */

431

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case EACCES:

432

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case ENAMETOOLONG:

433

436

case ENOENT:

437

case ENOTDIR:

434

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return EX_OSFILE;

435

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default:

436

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return EX_OSERR;

647

651

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__attribute__((nonnull, warn_unused_result))

649

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

}

650

661

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

651

662

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

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

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868

}

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close(pipefds[1]);

859

870

871

if(pid == -1){

872

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

873

close(pipefds[0]);

874

return false;

875

}

876

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if(not add_to_queue(queue, (task_context){

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.func=wait_for_mandos_client_exit,

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.pid=pid,

1017

1034

return false;

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1035

}

1019

1036

1020

if(inotify_add_watch(fd, dir, IN_CLOSE_WRITE

1021

| IN_MOVED_TO | IN_DELETE)

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)

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1040

== -1){

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

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return false;

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1089

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

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const size_t ievent_size = (sizeof(struct inotify_event)

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1091

+ NAME_MAX + 1);

1074

char ievent_buffer[sizeof(struct inotify_event) + NAME_MAX + 1];

1075

struct inotify_event *ievent = ((struct inotify_event *)

1076

ievent_buffer);

1092

struct {

1093

struct inotify_event event;

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char name_buffer[NAME_MAX + 1];

1095

} ievent_buffer;

1096

struct inotify_event *const ievent = &ievent_buffer.event;

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1078

1098

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

1079

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

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immediately */

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1138

queue->next_run = 1;

1119

1139

}

1120

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

1140

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

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1141

if(not string_set_add(cancelled_filenames,

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1142

question_filename)){

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1143

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

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

1878

1898

}

1879

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

1880

1923

static void dummy_func(__attribute__((unused))

1881

1924

const task_context task,

1882

1925

__attribute__((unused))

2153

2196

}

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2197

exit(EXIT_SUCCESS);

2155

2198

}

2199

if(pid == -1){

2200

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

2201

}

2202

2156

2203

int status;

2157

2204

waitpid(pid, &status, 0);

2158

2205

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

2220

2267

2221

2268

{

2222

2269

__attribute__((cleanup(cleanup_close)))

2223

const int devnull_fd = open("/dev/null", O_WRONLY | O_CLOEXEC);

2270

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

2271

O_WRONLY | O_CLOEXEC | O_NOCTTY);

2224

2272

g_assert_cmpint(devnull_fd, >=, 0);

2225

2273

__attribute__((cleanup(cleanup_close)))

2226

2274

const int real_stderr_fd = dup(STDERR_FILENO);

2250

2298

{

2251

2299

__attribute__((cleanup(cleanup_close)))

2252

2300

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

2253

O_WRONLY | O_CLOEXEC);

2301

O_WRONLY | O_CLOEXEC | O_NOCTTY);

2254

2302

g_assert_cmpint(devnull_fd, >=, 0);

2255

2303

__attribute__((cleanup(cleanup_close)))

2256

2304

const int real_stderr_fd = dup(STDERR_FILENO);

2901

2949

2902

2950

__attribute__((cleanup(cleanup_close)))

2903

2951

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

2904

O_WRONLY | O_CLOEXEC);

2952

O_WRONLY | O_CLOEXEC | O_NOCTTY);

2905

2953

g_assert_cmpint(devnull_fd, >=, 0);

2906

2954

__attribute__((cleanup(cleanup_close)))

2907

2955

const int real_stderr_fd = dup(STDERR_FILENO);

2972

3020

2973

3021

__attribute__((cleanup(cleanup_close)))

2974

3022

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

2975

O_WRONLY | O_CLOEXEC);

3023

O_WRONLY | O_CLOEXEC, O_NOCTTY);

2976

3024

g_assert_cmpint(devnull_fd, >=, 0);

2977

3025

__attribute__((cleanup(cleanup_close)))

2978

3026

const int real_stderr_fd = dup(STDERR_FILENO);

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3064

buffer password = {};

3017

3065

3018

3066

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

3019

const int fd = open("/proc/self/mem", O_RDONLY | O_CLOEXEC);

3067

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

3068

O_RDONLY | O_CLOEXEC | O_NOCTTY);

3020

3069

3021

3070

bool password_is_read = false;

3022

3071

bool quit_now = false;

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3499

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

3451

3500

}

3452

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

3453

3540

static void test_add_inotify_dir_watch_EAGAIN(__attribute__((unused))

3454

3541

test_fixture *fixture,

3455

3542

__attribute__((unused))

3670

3757

}

3671

3758

3672

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

3673

3832

void test_add_inotify_dir_watch_IN_DELETE(__attribute__((unused))

3674

3833

test_fixture *fixture,

3675

3834

__attribute__((unused))

3733

3892

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

3734

3893

}

3735

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

3736

3971

static void test_read_inotify_event_readerror(__attribute__((unused))

3737

3972

test_fixture *fixture,

3738

3973

__attribute__((unused))

3744

3979

const mono_microsecs current_time = 0;

3745

3980

3746

3981

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

3747

const int fd = open("/proc/self/mem", O_RDONLY | O_CLOEXEC);

3982

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

3983

O_RDONLY | O_CLOEXEC | O_NOCTTY);

3748

3984

3749

3985

bool quit_now = false;

3750

3986

__attribute__((cleanup(cleanup_queue)))

3929

4165

const size_t ievent_max_size = (sizeof(struct inotify_event)

3930

4166

+ NAME_MAX + 1);

3931

4167

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

3932

char ievent_buffer[sizeof(struct inotify_event) + NAME_MAX + 1];

3933

struct inotify_event *ievent = ((struct inotify_event *)

3934

ievent_buffer);

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;

3935

4173

3936

4174

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

3937

4175

ievent->mask = IN_CLOSE_WRITE;

3939

4177

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

3940

4178

const size_t ievent_size = (sizeof(struct inotify_event)

3941

4179

+ sizeof(dummy_file_name));

3942

g_assert_cmpint(write(pipefds[1], ievent_buffer, ievent_size),

4180

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

3943

4181

==, ievent_size);

3944

4182

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

3945

4183

4022

4260

const size_t ievent_max_size = (sizeof(struct inotify_event)

4023

4261

+ NAME_MAX + 1);

4024

4262

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4025

char ievent_buffer[sizeof(struct inotify_event) + NAME_MAX + 1];

4026

struct inotify_event *ievent = ((struct inotify_event *)

4027

ievent_buffer);

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;

4028

4268

4029

4269

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

4030

4270

ievent->mask = IN_MOVED_TO;

4032

4272

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

4033

4273

const size_t ievent_size = (sizeof(struct inotify_event)

4034

4274

+ sizeof(dummy_file_name));

4035

g_assert_cmpint(write(pipefds[1], ievent_buffer, ievent_size),

4275

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

4036

4276

==, ievent_size);

4037

4277

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

4038

4278

4098

4338

}));

4099

4339

}

4100

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

4101

4426

static void test_read_inotify_event_IN_DELETE(__attribute__((unused))

4102

4427

test_fixture *fixture,

4103

4428

__attribute__((unused))

4117

4442

const size_t ievent_max_size = (sizeof(struct inotify_event)

4118

4443

+ NAME_MAX + 1);

4119

4444

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4120

char ievent_buffer[sizeof(struct inotify_event) + NAME_MAX + 1];

4121

struct inotify_event *ievent = ((struct inotify_event *)

4122

ievent_buffer);

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;

4123

4450

4124

4451

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

4125

4452

ievent->mask = IN_DELETE;

4127

4454

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

4128

4455

const size_t ievent_size = (sizeof(struct inotify_event)

4129

4456

+ sizeof(dummy_file_name));

4130

g_assert_cmpint(write(pipefds[1], ievent_buffer, ievent_size),

4457

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

4131

4458

==, ievent_size);

4132

4459

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

4133

4460

4199

4526

const size_t ievent_max_size = (sizeof(struct inotify_event)

4200

4527

+ NAME_MAX + 1);

4201

4528

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4202

char ievent_buffer[sizeof(struct inotify_event) + NAME_MAX + 1];

4203

struct inotify_event *ievent = ((struct inotify_event *)

4204

ievent_buffer);

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;

4205

4534

4206

4535

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

4207

4536

ievent->mask = IN_CLOSE_WRITE;

4209

4538

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

4210

4539

const size_t ievent_size = (sizeof(struct inotify_event)

4211

4540

+ sizeof(dummy_file_name));

4212

g_assert_cmpint(write(pipefds[1], ievent_buffer, ievent_size),

4541

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

4213

4542

==, ievent_size);

4214

4543

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

4215

4544

4273

4602

const size_t ievent_max_size = (sizeof(struct inotify_event)

4274

4603

+ NAME_MAX + 1);

4275

4604

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4276

char ievent_buffer[sizeof(struct inotify_event) + NAME_MAX + 1];

4277

struct inotify_event *ievent = ((struct inotify_event *)

4278

ievent_buffer);

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;

4279

4610

4280

4611

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

4281

4612

ievent->mask = IN_MOVED_TO;

4283

4614

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

4284

4615

const size_t ievent_size = (sizeof(struct inotify_event)

4285

4616

+ sizeof(dummy_file_name));

4286

g_assert_cmpint(write(pipefds[1], ievent_buffer, ievent_size),

4617

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

4287

4618

==, ievent_size);

4288

4619

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

4289

4620

4330

4661

EPOLLIN | EPOLLRDHUP));

4331

4662

}

4332

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

4333

4749

static

4334

4750

void test_read_inotify_event_IN_DELETE_badname(__attribute__((unused))

4335

4751

test_fixture *fixture,

4350

4766

const size_t ievent_max_size = (sizeof(struct inotify_event)

4351

4767

+ NAME_MAX + 1);

4352

4768

g_assert_cmpint(ievent_max_size, <=, PIPE_BUF);

4353

char ievent_buffer[sizeof(struct inotify_event) + NAME_MAX + 1];

4354

struct inotify_event *ievent = ((struct inotify_event *)

4355

ievent_buffer);

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;

4356

4774

4357

4775

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

4358

4776

ievent->mask = IN_DELETE;

4360

4778

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

4361

4779

const size_t ievent_size = (sizeof(struct inotify_event)

4362

4780

+ sizeof(dummy_file_name));

4363

g_assert_cmpint(write(pipefds[1], ievent_buffer, ievent_size),

4781

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

4364

4782

==, ievent_size);

4365

4783

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

4366

4784

5253

5671

__attribute__((unused))

5254

5672

gconstpointer user_data){

5255

5673

__attribute__((cleanup(cleanup_close)))

5256

const int epoll_fd = open("/dev/null", O_WRONLY | O_CLOEXEC);

5674

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

5675

O_WRONLY | O_CLOEXEC | O_NOCTTY);

5257

5676

__attribute__((cleanup(cleanup_string)))

5258

5677

char *const question_filename = strdup("/nonexistent/question");

5259

5678

g_assert_nonnull(question_filename);

5539

5958

test_fixture *fixture,

5540

5959

__attribute__((unused))

5541

5960

gconstpointer user_data){

5961

#ifndef __amd64__

5962

g_test_skip("Skipping EMSGSIZE test on non-AMD64 platform");

5963

#else

5542

5964

__attribute__((cleanup(cleanup_close)))

5543

5965

const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);

5544

5966

g_assert_cmpint(epoll_fd, >=, 0);

5597

6019

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

5598

6020

g_assert_true(string_set_contains(cancelled_filenames,

5599

6021

question_filename));

6022

#endif

5600

6023

}

5601

6024

5602

6025

static void test_send_password_to_socket_retry(__attribute__((unused))

5663

6086

__attribute__((unused))

5664

6087

gconstpointer user_data){

5665

6088

__attribute__((cleanup(cleanup_close)))

5666

const int epoll_fd = open("/dev/null", O_WRONLY | O_CLOEXEC);

6089

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

6090

O_WRONLY | O_CLOEXEC | O_NOCTTY);

5667

6091

__attribute__((cleanup(cleanup_string)))

5668

6092

char *const question_filename = strdup("/nonexistent/question");

5669

6093

g_assert_nonnull(question_filename);

5932

6356

const char *const

5933

6357

dirname){

5934

6358

__attribute__((cleanup(cleanup_close)))

5935

const int devnull_fd = open("/dev/null", O_WRONLY | O_CLOEXEC);

6359

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

6360

O_WRONLY | O_CLOEXEC | O_NOCTTY);

5936

6361

g_assert_cmpint(devnull_fd, >=, 0);

5937

6362

__attribute__((cleanup(cleanup_close)))

5938

6363

const int real_stderr_fd = dup(STDERR_FILENO);

7481

7906

test_add("/parse_arguments/mixed", test_parse_arguments_mixed);

7482

7907

test_add("/queue/create", test_create_queue);

7483

7908

test_add("/queue/add", test_add_to_queue);

7909

test_add("/queue/add/overflow", test_add_to_queue_overflow);

7484

7910

test_add("/queue/has_question/empty",

7485

7911

test_queue_has_question_empty);

7486

7912

test_add("/queue/has_question/false",

7573

7999

test_add_inotify_dir_watch);

7574

8000

test_add_st("/task-creators/add_inotify_dir_watch/fail",

7575

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);

7576

8004

test_add_st("/task-creators/add_inotify_dir_watch/EAGAIN",

7577

8005

test_add_inotify_dir_watch_EAGAIN);

7578

8006

test_add_st("/task-creators/add_inotify_dir_watch/IN_CLOSE_WRITE",

7579

8007

test_add_inotify_dir_watch_IN_CLOSE_WRITE);

7580

8008

test_add_st("/task-creators/add_inotify_dir_watch/IN_MOVED_TO",

7581

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);

7582

8014

test_add_st("/task-creators/add_inotify_dir_watch/IN_DELETE",

7583

8015

test_add_inotify_dir_watch_IN_DELETE);

7584

8016

test_add_st("/task/read_inotify_event/readerror",

7593

8025

test_read_inotify_event_IN_CLOSE_WRITE);

7594

8026

test_add_st("/task/read_inotify_event/IN_MOVED_TO",

7595

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);

7596

8030

test_add_st("/task/read_inotify_event/IN_DELETE",

7597

8031

test_read_inotify_event_IN_DELETE);

7598

8032

test_add_st("/task/read_inotify_event/IN_CLOSE_WRITE/badname",

7599

8033

test_read_inotify_event_IN_CLOSE_WRITE_badname);

7600

8034

test_add_st("/task/read_inotify_event/IN_MOVED_TO/badname",

7601

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);

7602

8038

test_add_st("/task/read_inotify_event/IN_DELETE/badname",

7603

8039

test_read_inotify_event_IN_DELETE_badname);

7604

8040

test_add_st("/task/open_and_parse_question/ENOENT",

7701

8137

g_option_context_set_help_enabled(context, FALSE);

7702

8138

g_option_context_set_ignore_unknown_options(context, TRUE);

7703

8139

7704

gboolean run_tests = FALSE;

8140

gboolean should_run_tests = FALSE;

7705

8141

GOptionEntry entries[] = {

7706

8142

{ "test", 0, 0, G_OPTION_ARG_NONE,

7707

&run_tests, "Run tests", NULL },

8143

&should_run_tests, "Run tests", NULL },

7708

8144

{ NULL }

7709

8145

};

7710

8146

g_option_context_add_main_entries(context, entries, NULL);

7717

8153

}

7718

8154

7719

8155

g_option_context_free(context);

7720

return run_tests != FALSE;

8156

return should_run_tests != FALSE;

7721

8157

}