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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Copyright (C) 2014 Red Hat, Inc.
*
*/
#include "nm-default.h"
#include <string.h>
#include <errno.h>
#include <time.h>
#include <netinet/ether.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <fcntl.h>
#include "NetworkManagerUtils.h"
#include "nm-test-utils-core.h"
/*****************************************************************************/
static void
test_nm_utils_monotonic_timestamp_as_boottime (void)
{
gint64 timestamp_ns_per_tick, now, now_boottime, now_boottime_2, now_boottime_3;
struct timespec tp;
clockid_t clockid;
guint i;
if (clock_gettime (CLOCK_BOOTTIME, &tp) != 0 && errno == EINVAL)
clockid = CLOCK_MONOTONIC;
else
clockid = CLOCK_BOOTTIME;
for (i = 0; i < 10; i++) {
if (clock_gettime (clockid, &tp) != 0)
g_assert_not_reached ();
now_boottime = ( ((gint64) tp.tv_sec) * NM_UTILS_NS_PER_SECOND ) + ((gint64) tp.tv_nsec);
now = nm_utils_get_monotonic_timestamp_ns ();
now_boottime_2 = nm_utils_monotonic_timestamp_as_boottime (now, 1);
g_assert_cmpint (now_boottime_2, >=, 0);
g_assert_cmpint (now_boottime_2, >=, now_boottime);
g_assert_cmpint (now_boottime_2 - now_boottime, <=, NM_UTILS_NS_PER_SECOND / 10);
for (timestamp_ns_per_tick = 1; timestamp_ns_per_tick <= NM_UTILS_NS_PER_SECOND; timestamp_ns_per_tick *= 10) {
now_boottime_3 = nm_utils_monotonic_timestamp_as_boottime (now / timestamp_ns_per_tick, timestamp_ns_per_tick);
g_assert_cmpint (now_boottime_2 / timestamp_ns_per_tick, ==, now_boottime_3);
}
}
}
/*****************************************************************************/
struct test_nm_utils_kill_child_async_data
{
GMainLoop *loop;
pid_t pid;
gboolean called;
gboolean expected_success;
const int *expected_child_status;
};
static void
test_nm_utils_kill_child_async_cb (pid_t pid, gboolean success, int child_status, void *user_data)
{
struct test_nm_utils_kill_child_async_data *data = user_data;
g_assert (success == !!data->expected_success);
g_assert (pid == data->pid);
if (data->expected_child_status)
g_assert_cmpint (*data->expected_child_status, ==, child_status);
if (!success)
g_assert_cmpint (child_status, ==, -1);
data->called = TRUE;
g_assert (data->loop);
g_main_loop_quit (data->loop);
}
static gboolean
test_nm_utils_kill_child_async_fail_cb (void *user_data)
{
g_assert_not_reached ();
}
static void
test_nm_utils_kill_child_async_do (const char *name, pid_t pid, int sig, guint32 wait_before_kill_msec, gboolean expected_success, const int *expected_child_status)
{
gboolean success;
struct test_nm_utils_kill_child_async_data data = { };
int timeout_id;
data.pid = pid;
data.expected_success = expected_success;
data.expected_child_status = expected_child_status;
nm_utils_kill_child_async (pid, sig, LOGD_CORE, name, wait_before_kill_msec, test_nm_utils_kill_child_async_cb, &data);
g_assert (!data.called);
timeout_id = g_timeout_add_seconds (5, test_nm_utils_kill_child_async_fail_cb, &data);
data.loop = g_main_loop_new (NULL, FALSE);
g_main_run (data.loop);
g_assert (data.called);
success = g_source_remove (timeout_id);
g_assert (success);
g_main_destroy (data.loop);
}
static void
test_nm_utils_kill_child_sync_do (const char *name, pid_t pid, int sig, guint32 wait_before_kill_msec, gboolean expected_success, const int *expected_child_status)
{
gboolean success;
int child_status = -1;
success = nm_utils_kill_child_sync (pid, sig, LOGD_CORE, name, &child_status, wait_before_kill_msec, 0);
g_assert (success == !!expected_success);
if (expected_child_status)
g_assert_cmpint (*expected_child_status, ==, child_status);
g_test_assert_expected_messages ();
}
static pid_t
test_nm_utils_kill_child_spawn (char **argv, gboolean do_not_reap_child)
{
GError *error = NULL;
int success;
GPid child_pid;
success = g_spawn_async (NULL,
argv,
NULL,
G_SPAWN_SEARCH_PATH | (do_not_reap_child ? G_SPAWN_DO_NOT_REAP_CHILD : 0),
NULL,
NULL,
&child_pid,
&error);
g_assert (success && !error);
return child_pid;
}
static pid_t
do_test_nm_utils_kill_child_create_and_join_pgroup (void)
{
int err, tmp = 0;
int pipefd[2];
pid_t pgid;
err = pipe2 (pipefd, O_CLOEXEC);
g_assert (err == 0);
pgid = fork();
g_assert (pgid >= 0);
if (pgid == 0) {
/* child process... */
nm_close (pipefd[0]);
err = setpgid (0, 0);
g_assert (err == 0);
err = write (pipefd[1], &tmp, sizeof (tmp));
g_assert (err == sizeof (tmp));
nm_close (pipefd[1]);
exit (0);
}
nm_close (pipefd[1]);
err = read (pipefd[0], &tmp, sizeof (tmp));
g_assert (err == sizeof (tmp));
nm_close (pipefd[0]);
err = setpgid (0, pgid);
g_assert (err == 0);
do {
err = waitpid (pgid, &tmp, 0);
} while (err == -1 && errno == EINTR);
g_assert (err == pgid);
g_assert (WIFEXITED (tmp) && WEXITSTATUS(tmp) == 0);
return pgid;
}
#define TEST_TOKEN "nm_test_kill_child_process"
static void
do_test_nm_utils_kill_child (void)
{
GLogLevelFlags fatal_mask;
char *argv_watchdog[] = {
"bash",
"-c",
"sleep 4; "
"kill -KILL 0; #watchdog for #" TEST_TOKEN,
NULL,
};
char *argv1[] = {
"bash",
"-c",
"trap \"sleep 0.3; exit 10\" EXIT; "
"sleep 100000; exit $? #" TEST_TOKEN,
NULL,
};
char *argv2[] = {
"bash",
"-c",
"exit 47; #" TEST_TOKEN,
NULL,
};
char *argv3[] = {
"bash",
"-c",
"trap \"exit 47\" TERM; while true; do :; done; #" TEST_TOKEN,
NULL,
};
char *argv4[] = {
"bash",
"-c",
"trap \"while true; do :; done\" TERM; while true; do :; done; #" TEST_TOKEN,
NULL,
};
pid_t pid1a_1, pid1a_2, pid1a_3, pid2a, pid3a, pid4a;
pid_t pid1s_1, pid1s_2, pid1s_3, pid2s, pid3s, pid4s;
const int expected_exit_47 = 12032; /* exit with status 47 */
const int expected_signal_TERM = SIGTERM;
const int expected_signal_KILL = SIGKILL;
test_nm_utils_kill_child_spawn (argv_watchdog, FALSE);
pid1s_1 = test_nm_utils_kill_child_spawn (argv1, TRUE);
pid1s_2 = test_nm_utils_kill_child_spawn (argv1, TRUE);
pid1s_3 = test_nm_utils_kill_child_spawn (argv1, TRUE);
pid2s = test_nm_utils_kill_child_spawn (argv2, TRUE);
pid3s = test_nm_utils_kill_child_spawn (argv3, TRUE);
pid4s = test_nm_utils_kill_child_spawn (argv4, TRUE);
pid1a_1 = test_nm_utils_kill_child_spawn (argv1, TRUE);
pid1a_2 = test_nm_utils_kill_child_spawn (argv1, TRUE);
pid1a_3 = test_nm_utils_kill_child_spawn (argv1, TRUE);
pid2a = test_nm_utils_kill_child_spawn (argv2, TRUE);
pid3a = test_nm_utils_kill_child_spawn (argv3, TRUE);
pid4a = test_nm_utils_kill_child_spawn (argv4, TRUE);
/* give processes time to start (and potentially block signals) ... */
g_usleep (G_USEC_PER_SEC / 10);
fatal_mask = g_log_set_always_fatal (G_LOG_FATAL_MASK);
NMTST_EXPECT_NM_DEBUG ("kill child process 'test-s-1-1' (*): waiting up to 3000 milliseconds for process to terminate normally after sending SIGTERM (15)...");
NMTST_EXPECT_NM_DEBUG ("kill child process 'test-s-1-1' (*): after sending SIGTERM (15), process * exited by signal 15 (* usec elapsed)");
test_nm_utils_kill_child_sync_do ("test-s-1-1", pid1s_1, SIGTERM, 3000, TRUE, &expected_signal_TERM);
NMTST_EXPECT_NM_DEBUG ("kill child process 'test-s-1-2' (*): waiting for process to terminate after sending SIGKILL (9)...");
NMTST_EXPECT_NM_DEBUG ("kill child process 'test-s-1-2' (*): after sending SIGKILL (9), process * exited by signal 9 (* usec elapsed)");
test_nm_utils_kill_child_sync_do ("test-s-1-2", pid1s_2, SIGKILL, 1000 / 2, TRUE, &expected_signal_KILL);
NMTST_EXPECT_NM_DEBUG ("kill child process 'test-s-1-3' (*): waiting up to 1 milliseconds for process to terminate normally after sending no signal (0)...");
NMTST_EXPECT_NM_DEBUG ("kill child process 'test-s-1-3' (*): sending SIGKILL...");
NMTST_EXPECT_NM_DEBUG ("kill child process 'test-s-1-3' (*): after sending no signal (0) and SIGKILL, process * exited by signal 9 (* usec elapsed)");
test_nm_utils_kill_child_sync_do ("test-s-1-3", pid1s_3, 0, 1, TRUE, &expected_signal_KILL);
NMTST_EXPECT_NM_DEBUG ("kill child process 'test-s-2' (*): process * already terminated normally with status 47");
test_nm_utils_kill_child_sync_do ("test-s-2", pid2s, SIGTERM, 3000, TRUE, &expected_exit_47);
/* send invalid signal. */
NMTST_EXPECT_NM_ERROR ("kill child process 'test-s-3-0' (*): failed to send Unexpected signal: Invalid argument (22)");
test_nm_utils_kill_child_sync_do ("test-s-3-0", pid3s, -1, 0, FALSE, NULL);
/* really kill pid3s */
NMTST_EXPECT_NM_DEBUG ("kill child process 'test-s-3-1' (*): waiting up to 3000 milliseconds for process to terminate normally after sending SIGTERM (15)...");
NMTST_EXPECT_NM_DEBUG ("kill child process 'test-s-3-1' (*): after sending SIGTERM (15), process * exited normally with status 47 (* usec elapsed)");
test_nm_utils_kill_child_sync_do ("test-s-3-1", pid3s, SIGTERM, 3000, TRUE, &expected_exit_47);
/* pid3s should not be a valid process, hence the call should fail. Note, that there
* is a race here. */
NMTST_EXPECT_NM_ERROR ("kill child process 'test-s-3-2' (*): failed due to unexpected return value -1 by waitpid (No child processes, 10) after sending no signal (0)");
test_nm_utils_kill_child_sync_do ("test-s-3-2", pid3s, 0, 0, FALSE, NULL);
NMTST_EXPECT_NM_DEBUG ("kill child process 'test-s-4' (*): waiting up to 1 milliseconds for process to terminate normally after sending SIGTERM (15)...");
NMTST_EXPECT_NM_DEBUG ("kill child process 'test-s-4' (*): sending SIGKILL...");
NMTST_EXPECT_NM_DEBUG ("kill child process 'test-s-4' (*): after sending SIGTERM (15) and SIGKILL, process * exited by signal 9 (* usec elapsed)");
test_nm_utils_kill_child_sync_do ("test-s-4", pid4s, SIGTERM, 1, TRUE, &expected_signal_KILL);
NMTST_EXPECT_NM_DEBUG ("kill child process 'test-a-1-1' (*): wait for process to terminate after sending SIGTERM (15) (send SIGKILL in 3000 milliseconds)...");
NMTST_EXPECT_NM_DEBUG ("kill child process 'test-a-1-1' (*): terminated by signal 15 (* usec elapsed)");
test_nm_utils_kill_child_async_do ("test-a-1-1", pid1a_1, SIGTERM, 3000, TRUE, &expected_signal_TERM);
NMTST_EXPECT_NM_DEBUG ("kill child process 'test-a-1-2' (*): wait for process to terminate after sending SIGKILL (9)...");
NMTST_EXPECT_NM_DEBUG ("kill child process 'test-a-1-2' (*): terminated by signal 9 (* usec elapsed)");
test_nm_utils_kill_child_async_do ("test-a-1-2", pid1a_2, SIGKILL, 1000 / 2, TRUE, &expected_signal_KILL);
NMTST_EXPECT_NM_DEBUG ("kill child process 'test-a-1-3' (*): wait for process to terminate after sending no signal (0) (send SIGKILL in 1 milliseconds)...");
NMTST_EXPECT_NM_DEBUG ("kill child process 'test-a-1-3' (*): process not terminated after * usec. Sending SIGKILL signal");
NMTST_EXPECT_NM_DEBUG ("kill child process 'test-a-1-3' (*): terminated by signal 9 (* usec elapsed)");
test_nm_utils_kill_child_async_do ("test-a-1-3", pid1a_3, 0, 1, TRUE, &expected_signal_KILL);
NMTST_EXPECT_NM_DEBUG ("kill child process 'test-a-2' (*): process * already terminated normally with status 47");
NMTST_EXPECT_NM_DEBUG ("kill child process 'test-a-2' (*): invoke callback: terminated normally with status 47");
test_nm_utils_kill_child_async_do ("test-a-2", pid2a, SIGTERM, 3000, TRUE, &expected_exit_47);
NMTST_EXPECT_NM_ERROR ("kill child process 'test-a-3-0' (*): unexpected error sending Unexpected signal: Invalid argument (22)");
NMTST_EXPECT_NM_DEBUG ("kill child process 'test-a-3-0' (*): invoke callback: killing child failed");
/* coverity[negative_returns] */
test_nm_utils_kill_child_async_do ("test-a-3-0", pid3a, -1, 1000 / 2, FALSE, NULL);
NMTST_EXPECT_NM_DEBUG ("kill child process 'test-a-3-1' (*): wait for process to terminate after sending SIGTERM (15) (send SIGKILL in 3000 milliseconds)...");
NMTST_EXPECT_NM_DEBUG ("kill child process 'test-a-3-1' (*): terminated normally with status 47 (* usec elapsed)");
test_nm_utils_kill_child_async_do ("test-a-3-1", pid3a, SIGTERM, 3000, TRUE, &expected_exit_47);
/* pid3a should not be a valid process, hence the call should fail. Note, that there
* is a race here. */
NMTST_EXPECT_NM_ERROR ("kill child process 'test-a-3-2' (*): failed due to unexpected return value -1 by waitpid (No child processes, 10) after sending no signal (0)");
NMTST_EXPECT_NM_DEBUG ("kill child process 'test-a-3-2' (*): invoke callback: killing child failed");
test_nm_utils_kill_child_async_do ("test-a-3-2", pid3a, 0, 0, FALSE, NULL);
NMTST_EXPECT_NM_DEBUG ("kill child process 'test-a-4' (*): wait for process to terminate after sending SIGTERM (15) (send SIGKILL in 1 milliseconds)...");
NMTST_EXPECT_NM_DEBUG ("kill child process 'test-a-4' (*): process not terminated after * usec. Sending SIGKILL signal");
NMTST_EXPECT_NM_DEBUG ("kill child process 'test-a-4' (*): terminated by signal 9 (* usec elapsed)");
test_nm_utils_kill_child_async_do ("test-a-4", pid4a, SIGTERM, 1, TRUE, &expected_signal_KILL);
g_log_set_always_fatal (fatal_mask);
g_test_assert_expected_messages ();
}
static void
test_nm_utils_kill_child (void)
{
int err;
int exit_status;
pid_t gpid;
pid_t child_pid;
/* the tests spawns several processes, we want to clean them up
* by sending a SIGKILL to the process group.
*
* The current process might be a session leader, which prevents it from
* creating a new process group. Hence, first fork and let the child
* create a new process group, run the tests, and kill all pending
* processes. */
child_pid = fork ();
g_assert (child_pid >= 0);
if (child_pid == 0) {
gpid = do_test_nm_utils_kill_child_create_and_join_pgroup ();
do_test_nm_utils_kill_child ();
err = setpgid (0, 0);
g_assert (err == 0);
kill (-gpid, SIGKILL);
exit (0);
};
do {
err = waitpid (child_pid, &exit_status, 0);
} while (err == -1 && errno == EINTR);
g_assert (err == child_pid);
g_assert (WIFEXITED (exit_status) && WEXITSTATUS(exit_status) == 0);
}
/*****************************************************************************/
static void
_remove_at_indexes_init_random_idx (GArray *idx, guint array_len, guint idx_len)
{
GRand *rand = nmtst_get_rand ();
gs_free char *mask = NULL;
guint i, max_test_idx;
g_assert (idx);
g_assert (array_len > 0);
g_assert (idx_len >= 1 && idx_len <= array_len);
mask = g_new0 (char, array_len);
max_test_idx = array_len - 1;
for (i = 0; i < idx_len; i++) {
guint itest;
/* find a index itest that is not yet taken */
if (max_test_idx == 0)
itest = 0;
else
itest = g_rand_int_range (rand, 0, max_test_idx);
while (itest < array_len && mask[itest])
itest++;
g_assert (itest <= max_test_idx);
g_assert (!mask[itest]);
mask[itest] = TRUE;
if (itest == max_test_idx) {
g_assert (max_test_idx > 0 || i == idx_len - 1);
if (max_test_idx == 0)
g_assert_cmpint (i, ==, idx_len - 1);
else {
max_test_idx--;
while (max_test_idx > 0 && mask[max_test_idx])
max_test_idx--;
if (mask[max_test_idx])
g_assert_cmpint (i, ==, idx_len - 1);
}
}
}
g_array_set_size (idx, 0);
for (i = 0; i < array_len; i++) {
if (mask[i])
g_array_append_val (idx, i);
}
g_assert_cmpint (idx->len, ==, idx_len);
}
static void
test_nm_utils_array_remove_at_indexes (void)
{
gs_unref_array GArray *idx = NULL, *array = NULL;
gs_unref_hashtable GHashTable *unique = NULL;
guint i_len, i_idx_len, i_rnd, i;
idx = g_array_new (FALSE, FALSE, sizeof (guint));
array = g_array_new (FALSE, FALSE, sizeof (gssize));
unique = g_hash_table_new (nm_direct_hash, NULL);
for (i_len = 1; i_len < 20; i_len++) {
for (i_idx_len = 1; i_idx_len <= i_len; i_idx_len++) {
for (i_rnd = 0; i_rnd < 20; i_rnd++) {
_remove_at_indexes_init_random_idx (idx, i_len, i_idx_len);
g_array_set_size (array, i_len);
for (i = 0; i < i_len; i++)
g_array_index (array, gssize, i) = i;
nm_utils_array_remove_at_indexes (array, &g_array_index (idx, guint, 0), i_idx_len);
g_hash_table_remove_all (unique);
/* ensure that all the indexes are still unique */
for (i = 0; i < array->len; i++)
g_hash_table_add (unique, GUINT_TO_POINTER (g_array_index (array, gssize, i)));
g_assert_cmpint (g_hash_table_size (unique), ==, array->len);
for (i = 0; i < idx->len; i++)
g_hash_table_add (unique, GUINT_TO_POINTER (g_array_index (idx, guint, i)));
g_assert_cmpint (g_hash_table_size (unique), ==, i_len);
/* ensure proper sort order in array */
for (i = 0; i < array->len; i++) {
gssize i1 = g_array_index (array, gssize, i);
g_assert (i1 >= 0 && i1 < i_len);
if (i > 0) {
gsize i0 = g_array_index (array, gssize, i - 1);
g_assert_cmpint (i0, <, i1);
}
}
}
}
}
}
/*****************************************************************************/
static void
test_nm_ethernet_address_is_valid (void)
{
g_assert (!nm_ethernet_address_is_valid (NULL, -1));
g_assert (!nm_ethernet_address_is_valid (NULL, ETH_ALEN));
g_assert (!nm_ethernet_address_is_valid ("FF:FF:FF:FF:FF:FF", -1));
g_assert (!nm_ethernet_address_is_valid ("00:00:00:00:00:00", -1));
g_assert (!nm_ethernet_address_is_valid ("44:44:44:44:44:44", -1));
g_assert (!nm_ethernet_address_is_valid ("00:30:b4:00:00:00", -1));
g_assert (!nm_ethernet_address_is_valid ("", -1));
g_assert (!nm_ethernet_address_is_valid ("1", -1));
g_assert (!nm_ethernet_address_is_valid ("2", -1));
g_assert (!nm_ethernet_address_is_valid (((guint8[8]) { 0x00,0x30,0xb4,0x00,0x00,0x00 }), ETH_ALEN));
g_assert ( nm_ethernet_address_is_valid (((guint8[8]) { 0x00,0x30,0xb4,0x00,0x00,0x01 }), ETH_ALEN));
/* some Broad cast addresses (with MSB of first octet set). */
g_assert (!nm_ethernet_address_is_valid ("57:44:44:44:44:44", -1));
g_assert ( nm_ethernet_address_is_valid ("56:44:44:44:44:44", -1));
g_assert (!nm_ethernet_address_is_valid (((guint8[8]) { 0x03,0x30,0xb4,0x00,0x00,0x00 }), ETH_ALEN));
g_assert ( nm_ethernet_address_is_valid (((guint8[8]) { 0x02,0x30,0xb4,0x00,0x00,0x01 }), ETH_ALEN));
}
/*****************************************************************************/
static void
test_nm_utils_new_vlan_name (void)
{
guint i, j;
const char *parent_names[] = {
"a",
"a2",
"a23",
"a23456789",
"a2345678901",
"a23456789012",
"a234567890123",
"a2345678901234",
"a23456789012345",
"a234567890123456",
"a2345678901234567",
};
for (i = 0; i < G_N_ELEMENTS (parent_names); i++) {
for (j = 0; j < 10; j++) {
gs_free char *ifname = NULL;
gs_free char *vlan_id_s = NULL;
guint vlan_id;
/* Create a random VLAN id between 0 and 4094 */
vlan_id = nmtst_get_rand_int () % 4095;
vlan_id_s = g_strdup_printf (".%d", vlan_id);
ifname = nm_utils_new_vlan_name (parent_names[i], vlan_id);
g_assert (ifname && ifname[0]);
g_assert_cmpint (strlen (ifname), ==, MIN (15, strlen (parent_names[i]) + strlen (vlan_id_s)));
g_assert (g_str_has_suffix (ifname, vlan_id_s));
g_assert (ifname[strlen (ifname) - strlen (vlan_id_s)] == '.');
g_assert (strncmp (ifname, parent_names[i], strlen (ifname) - strlen (vlan_id_s)) == 0);
if (!g_str_has_prefix (ifname, parent_names[i]))
g_assert_cmpint (strlen (ifname), ==, 15);
}
}
}
/*****************************************************************************/
NMTST_DEFINE ();
int
main (int argc, char **argv)
{
nmtst_init_assert_logging (&argc, &argv, "DEBUG", "DEFAULT");
g_test_add_func ("/general/nm_utils_monotonic_timestamp_as_boottime", test_nm_utils_monotonic_timestamp_as_boottime);
g_test_add_func ("/general/nm_utils_kill_child", test_nm_utils_kill_child);
g_test_add_func ("/general/nm_utils_array_remove_at_indexes", test_nm_utils_array_remove_at_indexes);
g_test_add_func ("/general/nm_ethernet_address_is_valid", test_nm_ethernet_address_is_valid);
g_test_add_func ("/general/nm_utils_new_vlan_name", test_nm_utils_new_vlan_name);
return g_test_run ();
}
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