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23
* Contact the authors at <mandos@recompile.se>.
27
#include <inttypes.h> /* uintmax_t, PRIuMAX, PRIdMAX,
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intmax_t, uint32_t, SCNx32,
30
#include <stddef.h> /* size_t */
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#define _GNU_SOURCE /* pipe2(), O_CLOEXEC, setresgid(),
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setresuid(), asprintf(), getline(),
29
#include <inttypes.h> /* uintmax_t, strtoumax(), PRIuMAX,
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PRIdMAX, intmax_t, uint32_t,
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SCNx32, SCNuMAX, SCNxMAX */
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#include <stddef.h> /* size_t, NULL */
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#include <sys/types.h> /* pid_t, uid_t, gid_t, getuid(),
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#include <stdbool.h> /* bool, true, false */
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NSIG, sigismember(), SA_ONSTACK,
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SIG_DFL, SIG_IGN, SIGINT, SIGQUIT,
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SIGHUP, SIGSTOP, SIG_UNBLOCK */
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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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setresuid(), execv(), ssize_t,
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read(), dup3(), getuid(), dup(),
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STDERR_FILENO, pause(), write(),
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rmdir(), unlink(), getpid() */
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#include <stdlib.h> /* EXIT_SUCCESS, EXIT_FAILURE,
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malloc(), free(), strtoumax(),
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realloc(), setenv(), calloc(),
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mkdtemp(), mkostemp() */
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malloc(), free(), realloc(),
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setenv(), calloc(), mkdtemp(),
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#include <iso646.h> /* not, or, and, xor */
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#include <error.h> /* error() */
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#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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64
ETOOMANYREFS, EMSGSIZE, EBADF,
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66
#include <string.h> /* strdup(), memcpy(),
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explicit_bzero(), memset(),
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strcmp(), strlen(), strncpy(),
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memcmp(), basename() */
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memcmp(), basename(), strerror() */
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#include <argz.h> /* argz_create(), argz_count(),
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argz_extract(), argz_next(),
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ARGP_ERR_UNKNOWN, ARGP_KEY_ARGS,
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struct argp, argp_parse(),
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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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setresuid(), execv(), ssize_t,
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read(), dup3(), getuid(), dup(),
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STDERR_FILENO, pause(), write(),
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rmdir(), unlink(), getpid() */
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#include <stdint.h> /* SIZE_MAX, uint32_t */
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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 */
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#include <sys/wait.h> /* waitpid(), WNOHANG, WIFEXITED(),
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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,
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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,
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struct inotify_event */
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#include <fnmatch.h> /* fnmatch(), FNM_FILE_NAME */
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#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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#include <stdio.h> /* asprintf(), FILE, stderr, fopen(),
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fclose(), getline(), sscanf(),
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feof(), ferror(), rename(),
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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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g_assert_null(), g_assert_false(),
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g_assert_cmpint(), g_assert_cmpuint(),
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g_test_skip(), g_assert_cmpstr(),
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g_test_init(), g_test_add(), g_test_run(),
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GOptionContext, g_option_context_new(),
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g_test_message(), g_test_init(), g_test_add(),
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g_test_run(), GOptionContext,
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g_option_context_new(),
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g_option_context_set_help_enabled(), FALSE,
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g_option_context_set_ignore_unknown_options(),
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gboolean, GOptionEntry, G_OPTION_ARG_NONE,
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__attribute__((nonnull, warn_unused_result))
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bool add_to_queue(task_queue *const queue, const task_context task){
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if((queue->length + 1) > (SIZE_MAX / sizeof(task_context))){
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error(0, ENOMEM, "Failed to allocate %" PRIuMAX
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" tasks for queue->tasks", (uintmax_t)(queue->length + 1));
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const size_t needed_size = sizeof(task_context)*(queue->length + 1);
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if(needed_size > (queue->allocated)){
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task_context *const new_tasks = realloc(queue->tasks,
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g_assert_true(queue->tasks[0].func == dummy_func);
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static void test_add_to_queue_overflow(__attribute__((unused))
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test_fixture *fixture,
1907
__attribute__((unused))
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gconstpointer user_data){
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__attribute__((cleanup(cleanup_queue)))
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task_queue *queue = create_queue();
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g_assert_nonnull(queue);
1912
g_assert_true(queue->length == 0);
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queue->length = SIZE_MAX / sizeof(task_context); /* fake max size */
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FILE *real_stderr = stderr;
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FILE *devnull = fopen("/dev/null", "we");
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g_assert_nonnull(devnull);
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const bool ret = add_to_queue(queue,
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(task_context){ .func=dummy_func });
1921
g_assert_true(errno == ENOMEM);
1922
g_assert_false(ret);
1923
stderr = real_stderr;
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g_assert_cmpint(fclose(devnull), ==, 0);
1925
queue->length = 0; /* Restore real size */
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static void dummy_func(__attribute__((unused))
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const task_context task,
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__attribute__((unused))
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g_assert_cmpuint((unsigned int)queue->length, ==, 0);
3507
static void test_add_inotify_dir_watch_nondir(__attribute__((unused))
3508
test_fixture *fixture,
3509
__attribute__((unused))
3512
__attribute__((cleanup(cleanup_close)))
3513
const int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
3514
g_assert_cmpint(epoll_fd, >=, 0);
3515
__attribute__((cleanup(cleanup_queue)))
3516
task_queue *queue = create_queue();
3517
g_assert_nonnull(queue);
3518
__attribute__((cleanup(string_set_clear)))
3519
string_set cancelled_filenames = {};
3520
const mono_microsecs current_time = 0;
3522
bool quit_now = false;
3523
buffer password = {};
3524
bool mandos_client_exited = false;
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bool password_is_read = false;
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const char not_a_directory[] = "/dev/tty";
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FILE *real_stderr = stderr;
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FILE *devnull = fopen("/dev/null", "we");
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g_assert_nonnull(devnull);
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g_assert_false(add_inotify_dir_watch(queue, epoll_fd, &quit_now,
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&password, not_a_directory,
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&cancelled_filenames,
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&mandos_client_exited,
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&password_is_read));
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stderr = real_stderr;
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g_assert_cmpint(fclose(devnull), ==, 0);
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g_assert_cmpuint((unsigned int)queue->length, ==, 0);
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static void test_add_inotify_dir_watch_EAGAIN(__attribute__((unused))
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test_fixture *fixture,
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__attribute__((unused))
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char *const filename = strdup("/nonexistent/socket");
5879
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__attribute__((cleanup(string_set_clear)))
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string_set cancelled_filenames = {};
5881
const size_t oversized = 1024*1024; /* Limit seems to be 212960 */
5882
__attribute__((cleanup(cleanup_buffer)))
5884
.data=malloc(oversized),
5886
.allocated=oversized,
5975
/* Find a message size which triggers EMSGSIZE */
5976
__attribute__((cleanup(cleanup_string)))
5977
char *message_buffer = NULL;
5978
size_t message_size = PIPE_BUF + 1;
5979
for(ssize_t ssret = 0; ssret >= 0; message_size += 1024){
5980
if(message_size >= 1024*1024*1024){ /* 1 GiB */
5981
g_test_skip("Skipping EMSGSIZE test: Will not try 1GiB");
5984
message_buffer = realloc(message_buffer, message_size);
5985
if(message_buffer == NULL){
5986
g_test_skip("Skipping EMSGSIZE test");
5987
g_test_message("Failed to malloc() %" PRIuMAX " bytes",
5988
(uintmax_t)message_size);
5991
/* Fill buffer with 'x' */
5992
memset(message_buffer, 'x', message_size);
5993
/* Create a new socketpair for each message size to avoid having
5994
to empty the pipe by reading the message to a separate buffer
5996
g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM
5997
| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,
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ssret = send(socketfds[1], message_buffer, message_size,
6001
error_t saved_errno = errno;
6002
g_assert_cmpint(close(socketfds[0]), ==, 0);
6003
g_assert_cmpint(close(socketfds[1]), ==, 0);
6006
if(saved_errno != EMSGSIZE) {
6007
g_test_skip("Skipping EMSGSIZE test");
6008
g_test_message("Error on send(%" PRIuMAX " bytes): %s",
6009
(uintmax_t)message_size,
6010
strerror(saved_errno));
6014
} else if(ssret != (ssize_t)message_size){
6015
g_test_skip("Skipping EMSGSIZE test");
6016
g_test_message("Partial send(): %" PRIuMAX " of %" PRIdMAX
6017
" bytes", (uintmax_t)ssret,
6018
(intmax_t)message_size);
6022
g_test_message("EMSGSIZE triggered by %" PRIdMAX " bytes",
6023
(intmax_t)message_size);
6026
.data=message_buffer,
6027
.length=message_size - 2, /* Compensate for added '+' and NUL */
6028
.allocated=message_size,
5888
g_assert_nonnull(password.data);
5889
6030
if(mlock(password.data, password.allocated) != 0){
5890
6031
g_assert_true(errno == EPERM or errno == ENOMEM);
5892
/* Construct test password buffer */
5893
/* Start with + since that is what the real procotol uses */
5894
password.data[0] = '+';
5895
/* Set a special character at string end just to mark the end */
5896
password.data[oversized-3] = 'y';
5897
/* Set NUL at buffer end, as suggested by the protocol */
5898
password.data[oversized-2] = '\0';
5899
/* Fill rest of password with 'x' */
5900
memset(password.data+1, 'x', oversized-3);
5902
6034
__attribute__((cleanup(cleanup_queue)))
5903
6035
task_queue *queue = create_queue();
5904
6036
g_assert_nonnull(queue);
5906
6037
g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM
5907
6038
| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,
5908
6039
socketfds), ==, 0);
8041
8177
g_option_context_set_help_enabled(context, FALSE);
8042
8178
g_option_context_set_ignore_unknown_options(context, TRUE);
8044
gboolean run_tests = FALSE;
8180
gboolean should_run_tests = FALSE;
8045
8181
GOptionEntry entries[] = {
8046
8182
{ "test", 0, 0, G_OPTION_ARG_NONE,
8047
&run_tests, "Run tests", NULL },
8183
&should_run_tests, "Run tests", NULL },
8050
8186
g_option_context_add_main_entries(context, entries, NULL);