void isc_ratelimiter_shutdown (isc_ratelimiter_t * rl)
{
isc_event_t *ev;
isc_task_t *task;
LOCK (&rl->lock);
rl->state = isc_ratelimiter_shuttingdown;
(void) isc_timer_reset (rl->timer, isc_timertype_inactive, NULL, NULL, ISC_FALSE);
while ((ev = ISC_LIST_HEAD (rl->pending)) != NULL)
{
ISC_LIST_UNLINK (rl->pending, ev, ev_link);
ev->ev_attributes |= ISC_EVENTATTR_CANCELED;
task = ev->ev_sender;
isc_task_send (task, &ev);
}
isc_timer_detach (&rl->timer);
/*
* Send an event to our task. The delivery of this event
* indicates that no more timer events will be delivered.
*/
ev = &rl->shutdownevent;
isc_task_send (rl->task, &ev);
UNLOCK (&rl->lock);
}
ATF_TC_BODY(all_events, tc) {
isc_result_t result;
isc_task_t *task = NULL;
isc_event_t *event;
int a = 0, b = 0;
int i = 0;
UNUSED(tc);
counter = 1;
result = isc_mutex_init(&set_lock);
ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
result = isc_test_begin(NULL, ISC_TRUE);
ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
result = isc_task_create(taskmgr, 0, &task);
ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
/* First event */
event = isc_event_allocate(mctx, task, ISC_TASKEVENT_TEST,
set, &a, sizeof (isc_event_t));
ATF_REQUIRE(event != NULL);
ATF_CHECK_EQ(a, 0);
isc_task_send(task, &event);
event = isc_event_allocate(mctx, task, ISC_TASKEVENT_TEST,
set, &b, sizeof (isc_event_t));
ATF_REQUIRE(event != NULL);
ATF_CHECK_EQ(b, 0);
isc_task_send(task, &event);
while ((a == 0 || b == 0) && i++ < 5000) {
#ifndef ISC_PLATFORM_USETHREADS
while (isc__taskmgr_ready(taskmgr))
isc__taskmgr_dispatch(taskmgr);
#endif
isc_test_nap(1000);
}
ATF_CHECK(a != 0);
ATF_CHECK(b != 0);
isc_task_destroy(&task);
ATF_REQUIRE_EQ(task, NULL);
isc_test_end();
}
static void
recv_message(isc_task_t *task, isc_event_t *ev_in) {
isc_socketevent_t *ev = (isc_socketevent_t *)ev_in;
isc_event_t *dev;
dns_tcpmsg_t *tcpmsg = ev_in->ev_arg;
(void)task;
INSIST(VALID_TCPMSG(tcpmsg));
dev = &tcpmsg->event;
tcpmsg->address = ev->address;
if (ev->result != ISC_R_SUCCESS) {
tcpmsg->result = ev->result;
goto send_and_free;
}
tcpmsg->result = ISC_R_SUCCESS;
isc_buffer_add(&tcpmsg->buffer, ev->n);
XDEBUG(("Received %d bytes (of %d)\n", ev->n, tcpmsg->size));
send_and_free:
isc_task_send(tcpmsg->task, &dev);
tcpmsg->task = NULL;
isc_event_free(&ev_in);
}
isc_result_t
isc_ratelimiter_enqueue(isc_ratelimiter_t *rl, isc_task_t *task,
isc_event_t **eventp)
{
isc_result_t result = ISC_R_SUCCESS;
isc_event_t *ev;
REQUIRE(eventp != NULL && *eventp != NULL);
REQUIRE(task != NULL);
ev = *eventp;
REQUIRE(ev->ev_sender == NULL);
LOCK(&rl->lock);
if (rl->state == isc_ratelimiter_ratelimited ||
rl->state == isc_ratelimiter_stalled) {
isc_event_t *ev = *eventp;
ev->ev_sender = task;
ISC_LIST_APPEND(rl->pending, ev, ev_link);
*eventp = NULL;
} else if (rl->state == isc_ratelimiter_idle) {
result = isc_timer_reset(rl->timer, isc_timertype_ticker, NULL,
&rl->interval, ISC_FALSE);
if (result == ISC_R_SUCCESS) {
ev->ev_sender = task;
rl->state = isc_ratelimiter_ratelimited;
}
} else {
INSIST(rl->state == isc_ratelimiter_shuttingdown);
result = ISC_R_SHUTTINGDOWN;
}
UNLOCK(&rl->lock);
if (*eventp != NULL && result == ISC_R_SUCCESS)
isc_task_send(task, eventp);
return (result);
}
static void
recv_message(isc_task_t *task, isc_event_t *ev_in) {
isc_socketevent_t *ev = (isc_socketevent_t *)ev_in;
isc_event_t *dev;
isccc_ccmsg_t *ccmsg = ev_in->ev_arg;
(void)task;
INSIST(VALID_CCMSG(ccmsg));
dev = &ccmsg->event;
if (ev->result != ISC_R_SUCCESS) {
ccmsg->result = ev->result;
goto send_and_free;
}
ccmsg->result = ISC_R_SUCCESS;
isc_buffer_add(&ccmsg->buffer, ev->n);
ccmsg->address = ev->address;
send_and_free:
isc_task_send(ccmsg->task, &dev);
ccmsg->task = NULL;
isc_event_free(&ev_in);
}
static void
recvresponse(isc_task_t *task, isc_event_t *event) {
dns_requestevent_t *reqev = (dns_requestevent_t *)event;
isc_result_t result, result2;
dns_message_t *query = NULL, *response = NULL;
isc_buffer_t outtoken;
isc_buffer_t outbuf;
char output[10 * 1024];
unsigned char array[DNS_NAME_MAXTEXT + 1];
isc_buffer_init(&outtoken, array, sizeof(array));
UNUSED(task);
REQUIRE(reqev != NULL);
query = reqev->ev_arg;
if (reqev->result != ISC_R_SUCCESS) {
fprintf(stderr, "I:request event result: %s\n",
isc_result_totext(reqev->result));
goto end;
}
response = NULL;
result = dns_message_create(mctx, DNS_MESSAGE_INTENTPARSE, &response);
CHECK("dns_message_create", result);
printf("\nReceived Response:\n");
result2 = dns_request_getresponse(reqev->request, response,
DNS_MESSAGEPARSE_PRESERVEORDER);
isc_buffer_init(&outbuf, output, sizeof(output));
result = dns_message_totext(response, &dns_master_style_debug, 0,
&outbuf);
CHECK("dns_message_totext", result);
printf("%.*s\n", (int)isc_buffer_usedlength(&outbuf),
(char *)isc_buffer_base(&outbuf));
CHECK("dns_request_getresponse", result2);
if (response != NULL)
dns_message_destroy(&response);
end:
if (query != NULL)
dns_message_destroy(&query);
if (reqev->request != NULL)
dns_request_destroy(&reqev->request);
isc_event_free(&event);
event = isc_event_allocate(mctx, (void *)1, 1, console, NULL,
sizeof(*event));
isc_task_send(task, &event);
return;
}
static void
recv_length(isc_task_t *task, isc_event_t *ev_in) {
isc_socketevent_t *ev = (isc_socketevent_t *)ev_in;
isc_event_t *dev;
dns_tcpmsg_t *tcpmsg = ev_in->ev_arg;
isc_region_t region;
isc_result_t result;
INSIST(VALID_TCPMSG(tcpmsg));
dev = &tcpmsg->event;
tcpmsg->address = ev->address;
if (ev->result != ISC_R_SUCCESS) {
tcpmsg->result = ev->result;
goto send_and_free;
}
/*
* Success.
*/
tcpmsg->size = ntohs(tcpmsg->size);
if (tcpmsg->size == 0) {
tcpmsg->result = ISC_R_UNEXPECTEDEND;
goto send_and_free;
}
if (tcpmsg->size > tcpmsg->maxsize) {
tcpmsg->result = ISC_R_RANGE;
goto send_and_free;
}
region.base = isc_mem_get(tcpmsg->mctx, tcpmsg->size);
region.length = tcpmsg->size;
if (region.base == NULL) {
tcpmsg->result = ISC_R_NOMEMORY;
goto send_and_free;
}
XDEBUG(("Allocated %d bytes\n", tcpmsg->size));
isc_buffer_init(&tcpmsg->buffer, region.base, region.length);
result = isc_socket_recv(tcpmsg->sock, ®ion, 0,
task, recv_message, tcpmsg);
if (result != ISC_R_SUCCESS) {
tcpmsg->result = result;
goto send_and_free;
}
isc_event_free(&ev_in);
return;
send_and_free:
isc_task_send(tcpmsg->task, &dev);
tcpmsg->task = NULL;
isc_event_free(&ev_in);
return;
}
static void
recv_length(isc_task_t *task, isc_event_t *ev_in) {
isc_socketevent_t *ev = (isc_socketevent_t *)ev_in;
isc_event_t *dev;
isccc_ccmsg_t *ccmsg = ev_in->ev_arg;
isc_region_t region;
isc_result_t result;
INSIST(VALID_CCMSG(ccmsg));
dev = &ccmsg->event;
if (ev->result != ISC_R_SUCCESS) {
ccmsg->result = ev->result;
goto send_and_free;
}
/*
* Success.
*/
ccmsg->size = ntohl(ccmsg->size);
if (ccmsg->size == 0) {
ccmsg->result = ISC_R_UNEXPECTEDEND;
goto send_and_free;
}
if (ccmsg->size > ccmsg->maxsize) {
ccmsg->result = ISC_R_RANGE;
goto send_and_free;
}
region.base = isc_mem_get(ccmsg->mctx, ccmsg->size);
region.length = ccmsg->size;
if (region.base == NULL) {
ccmsg->result = ISC_R_NOMEMORY;
goto send_and_free;
}
isc_buffer_init(&ccmsg->buffer, region.base, region.length);
result = isc_socket_recv(ccmsg->sock, ®ion, 0,
task, recv_message, ccmsg);
if (result != ISC_R_SUCCESS) {
ccmsg->result = result;
goto send_and_free;
}
isc_event_free(&ev_in);
return;
send_and_free:
isc_task_send(ccmsg->task, &dev);
ccmsg->task = NULL;
isc_event_free(&ev_in);
return;
}
void
dighost_shutdown(void) {
isc_event_t *event = global_event;
flush_lookup_list();
debug("dighost_shutdown()");
if (!in_use) {
isc_app_shutdown();
return;
}
isc_task_send(global_task, &event);
}
static void
console(isc_task_t *task, isc_event_t *event)
{
char buf[32];
int c;
isc_event_t *ev = NULL;
isc_event_free(&event);
for (;;) {
printf("\nCommand => ");
c = scanf("%31s", buf);
if (c == EOF || strcmp(buf, "quit") == 0) {
isc_app_shutdown();
return;
}
if (strcmp(buf, "initctx") == 0) {
ev = isc_event_allocate(mctx, (void *)1, 1, initctx1,
NULL, sizeof(*event));
isc_task_send(task, &ev);
return;
}
if (strcmp(buf, "query") == 0) {
ev = isc_event_allocate(mctx, (void *)1, 1, sendquery,
NULL, sizeof(*event));
isc_task_send(task, &ev);
return;
}
printf("Unknown command\n");
}
}
static void ratelimiter_tick (isc_task_t * task, isc_event_t * event)
{
isc_result_t result = ISC_R_SUCCESS;
isc_ratelimiter_t *rl = (isc_ratelimiter_t *) event->ev_arg;
isc_event_t *p;
isc_uint32_t pertic;
UNUSED (task);
isc_event_free (&event);
pertic = rl->pertic;
while (pertic != 0)
{
pertic--;
LOCK (&rl->lock);
p = ISC_LIST_HEAD (rl->pending);
if (p != NULL)
{
/*
* There is work to do. Let's do it after unlocking.
*/
ISC_LIST_UNLINK (rl->pending, p, ev_link);
}
else
{
/*
* No work left to do. Stop the timer so that we don't
* waste resources by having it fire periodically.
*/
result = isc_timer_reset (rl->timer, isc_timertype_inactive, NULL, NULL, ISC_FALSE);
RUNTIME_CHECK (result == ISC_R_SUCCESS);
rl->state = isc_ratelimiter_idle;
pertic = 0; /* Force the loop to exit. */
}
UNLOCK (&rl->lock);
if (p != NULL)
{
isc_task_t *evtask = p->ev_sender;
isc_task_send (evtask, &p);
}
INSIST (p == NULL);
}
}
void
do_xadd(isc_task_t *task, isc_event_t *ev) {
counter_t *state = (counter_t *)ev->ev_arg;
int i;
for (i = 0 ; i < COUNTS_PER_ITERATION ; i++) {
isc_atomic_xadd(&counter_32, 1);
}
state->iteration++;
if (state->iteration < ITERATIONS) {
isc_task_send(task, &ev);
} else {
isc_event_free(&ev);
}
}
static void
tick(isc_task_t *task, isc_event_t *event) {
t_info *info = event->ev_arg;
isc_event_t *nevent;
INSIST(event->ev_type == ISC_TIMEREVENT_TICK);
printf("task %s (%p) tick\n", info->name, task);
info->ticks++;
if (strcmp(info->name, "1") == 0) {
if (info->ticks == 10) {
RUNTIME_CHECK(isc_app_shutdown() == ISC_R_SUCCESS);
} else if (info->ticks >= 15 && info->exiting) {
isc_timer_detach(&info->timer);
isc_task_detach(&info->task);
nevent = isc_event_allocate(info->mctx, info,
T2_SHUTDOWNDONE,
t1_shutdown, &tasks[0],
sizeof(*event));
RUNTIME_CHECK(nevent != NULL);
isc_task_send(info->peer, &nevent);
isc_task_detach(&info->peer);
}
} else if (strcmp(info->name, "foo") == 0) {
isc_timer_detach(&info->timer);
nevent = isc_event_allocate(info->mctx, info,
FOO_EVENT,
foo_event, task,
sizeof(*event));
RUNTIME_CHECK(nevent != NULL);
isc_task_sendanddetach(&task, &nevent);
}
isc_event_free(&event);
}
ATF_TC_BODY(privileged_events, tc) {
isc_result_t result;
isc_task_t *task1 = NULL, *task2 = NULL;
isc_event_t *event;
int a = 0, b = 0, c = 0, d = 0, e = 0;
int i = 0;
UNUSED(tc);
counter = 1;
result = isc_mutex_init(&set_lock);
ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
result = isc_test_begin(NULL, ISC_TRUE);
ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
#ifdef ISC_PLATFORM_USETHREADS
/*
* Pause the task manager so we can fill up the work queue
* without things happening while we do it.
*/
isc__taskmgr_pause(taskmgr);
#endif
result = isc_task_create(taskmgr, 0, &task1);
ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
isc_task_setname(task1, "privileged", NULL);
ATF_CHECK(!isc_task_privilege(task1));
isc_task_setprivilege(task1, ISC_TRUE);
ATF_CHECK(isc_task_privilege(task1));
result = isc_task_create(taskmgr, 0, &task2);
ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
isc_task_setname(task2, "normal", NULL);
ATF_CHECK(!isc_task_privilege(task2));
/* First event: privileged */
event = isc_event_allocate(mctx, task1, ISC_TASKEVENT_TEST,
set, &a, sizeof (isc_event_t));
ATF_REQUIRE(event != NULL);
ATF_CHECK_EQ(a, 0);
isc_task_send(task1, &event);
/* Second event: not privileged */
event = isc_event_allocate(mctx, task2, ISC_TASKEVENT_TEST,
set, &b, sizeof (isc_event_t));
ATF_REQUIRE(event != NULL);
ATF_CHECK_EQ(b, 0);
isc_task_send(task2, &event);
/* Third event: privileged */
event = isc_event_allocate(mctx, task1, ISC_TASKEVENT_TEST,
set, &c, sizeof (isc_event_t));
ATF_REQUIRE(event != NULL);
ATF_CHECK_EQ(c, 0);
isc_task_send(task1, &event);
/* Fourth event: privileged */
event = isc_event_allocate(mctx, task1, ISC_TASKEVENT_TEST,
set, &d, sizeof (isc_event_t));
ATF_REQUIRE(event != NULL);
ATF_CHECK_EQ(d, 0);
isc_task_send(task1, &event);
/* Fifth event: not privileged */
event = isc_event_allocate(mctx, task2, ISC_TASKEVENT_TEST,
set, &e, sizeof (isc_event_t));
ATF_REQUIRE(event != NULL);
ATF_CHECK_EQ(e, 0);
isc_task_send(task2, &event);
ATF_CHECK_EQ(isc_taskmgr_mode(taskmgr), isc_taskmgrmode_normal);
isc_taskmgr_setmode(taskmgr, isc_taskmgrmode_privileged);
ATF_CHECK_EQ(isc_taskmgr_mode(taskmgr), isc_taskmgrmode_privileged);
#ifdef ISC_PLATFORM_USETHREADS
isc__taskmgr_resume(taskmgr);
#endif
/* We're waiting for *all* variables to be set */
while ((a == 0 || b == 0 || c == 0 || d == 0 || e == 0) && i++ < 5000) {
#ifndef ISC_PLATFORM_USETHREADS
while (isc__taskmgr_ready(taskmgr))
isc__taskmgr_dispatch(taskmgr);
#endif
isc_test_nap(1000);
}
/*
* We can't guarantee what order the events fire, but
* we do know the privileged tasks that set a, c, and d
* would have fired first.
*/
ATF_CHECK(a <= 3);
ATF_CHECK(c <= 3);
ATF_CHECK(d <= 3);
/* ...and the non-privileged tasks that set b and e, last */
ATF_CHECK(b >= 4);
ATF_CHECK(e >= 4);
ATF_CHECK_EQ(counter, 6);
isc_task_setprivilege(task1, ISC_FALSE);
ATF_CHECK(!isc_task_privilege(task1));
ATF_CHECK_EQ(isc_taskmgr_mode(taskmgr), isc_taskmgrmode_normal);
isc_task_destroy(&task1);
ATF_REQUIRE_EQ(task1, NULL);
isc_task_destroy(&task2);
ATF_REQUIRE_EQ(task2, NULL);
isc_test_end();
}
int
main(int argc, char *argv[]) {
isc_taskmgr_t *manager = NULL;
isc_task_t *t1 = NULL, *t2 = NULL;
isc_task_t *t3 = NULL, *t4 = NULL;
isc_event_t *event;
unsigned int workers;
isc_timermgr_t *timgr;
isc_timer_t *ti1, *ti2;
struct isc_interval interval;
if (argc > 1) {
workers = atoi(argv[1]);
if (workers < 1)
workers = 1;
if (workers > 8192)
workers = 8192;
} else
workers = 2;
printf("%d workers\n", workers);
RUNTIME_CHECK(isc_mem_create(0, 0, &mctx) == ISC_R_SUCCESS);
RUNTIME_CHECK(isc_taskmgr_create(mctx, workers, 0, &manager) ==
ISC_R_SUCCESS);
RUNTIME_CHECK(isc_task_create(manager, 0, &t1) == ISC_R_SUCCESS);
RUNTIME_CHECK(isc_task_create(manager, 0, &t2) == ISC_R_SUCCESS);
RUNTIME_CHECK(isc_task_create(manager, 0, &t3) == ISC_R_SUCCESS);
RUNTIME_CHECK(isc_task_create(manager, 0, &t4) == ISC_R_SUCCESS);
RUNTIME_CHECK(isc_task_onshutdown(t1, my_shutdown, "1") ==
ISC_R_SUCCESS);
RUNTIME_CHECK(isc_task_onshutdown(t2, my_shutdown, "2") ==
ISC_R_SUCCESS);
RUNTIME_CHECK(isc_task_onshutdown(t3, my_shutdown, "3") ==
ISC_R_SUCCESS);
RUNTIME_CHECK(isc_task_onshutdown(t4, my_shutdown, "4") ==
ISC_R_SUCCESS);
timgr = NULL;
RUNTIME_CHECK(isc_timermgr_create(mctx, &timgr) == ISC_R_SUCCESS);
ti1 = NULL;
isc_interval_set(&interval, 1, 0);
RUNTIME_CHECK(isc_timer_create(timgr, isc_timertype_ticker, NULL,
&interval, t1, my_tick, "foo", &ti1) ==
ISC_R_SUCCESS);
ti2 = NULL;
isc_interval_set(&interval, 1, 0);
RUNTIME_CHECK(isc_timer_create(timgr, isc_timertype_ticker, NULL,
&interval, t2, my_tick, "bar", &ti2) ==
ISC_R_SUCCESS);
printf("task 1 = %p\n", t1);
printf("task 2 = %p\n", t2);
sleep(2);
/*
* Note: (void *)1 is used as a sender here, since some compilers
* don't like casting a function pointer to a (void *).
*
* In a real use, it is more likely the sender would be a
* structure (socket, timer, task, etc) but this is just a test
* program.
*/
event = isc_event_allocate(mctx, (void *)1, 1, my_callback, "1",
sizeof(*event));
isc_task_send(t1, &event);
event = isc_event_allocate(mctx, (void *)1, 1, my_callback, "1",
sizeof(*event));
isc_task_send(t1, &event);
event = isc_event_allocate(mctx, (void *)1, 1, my_callback, "1",
sizeof(*event));
isc_task_send(t1, &event);
event = isc_event_allocate(mctx, (void *)1, 1, my_callback, "1",
sizeof(*event));
isc_task_send(t1, &event);
event = isc_event_allocate(mctx, (void *)1, 1, my_callback, "1",
sizeof(*event));
isc_task_send(t1, &event);
event = isc_event_allocate(mctx, (void *)1, 1, my_callback, "1",
sizeof(*event));
isc_task_send(t1, &event);
event = isc_event_allocate(mctx, (void *)1, 1, my_callback, "1",
sizeof(*event));
isc_task_send(t1, &event);
event = isc_event_allocate(mctx, (void *)1, 1, my_callback, "1",
sizeof(*event));
isc_task_send(t1, &event);
event = isc_event_allocate(mctx, (void *)1, 1, my_callback, "1",
sizeof(*event));
isc_task_send(t1, &event);
event = isc_event_allocate(mctx, (void *)1, 1, my_callback, "2",
sizeof(*event));
isc_task_send(t2, &event);
event = isc_event_allocate(mctx, (void *)1, 1, my_callback, "3",
sizeof(*event));
isc_task_send(t3, &event);
event = isc_event_allocate(mctx, (void *)1, 1, my_callback, "4",
sizeof(*event));
isc_task_send(t4, &event);
event = isc_event_allocate(mctx, (void *)1, 1, my_callback, "2",
sizeof(*event));
isc_task_send(t2, &event);
event = isc_event_allocate(mctx, (void *)1, 1, my_callback, "3",
sizeof(*event));
isc_task_send(t3, &event);
event = isc_event_allocate(mctx, (void *)1, 1, my_callback, "4",
sizeof(*event));
isc_task_send(t4, &event);
isc_task_purgerange(t3,
NULL,
ISC_EVENTTYPE_FIRSTEVENT,
ISC_EVENTTYPE_LASTEVENT, NULL);
isc_task_detach(&t1);
isc_task_detach(&t2);
isc_task_detach(&t3);
isc_task_detach(&t4);
sleep(10);
printf("destroy\n");
isc_timer_detach(&ti1);
isc_timer_detach(&ti2);
isc_timermgr_destroy(&timgr);
isc_taskmgr_destroy(&manager);
printf("destroyed\n");
isc_mem_stats(mctx, stdout);
isc_mem_destroy(&mctx);
return (0);
}
ATF_TC_BODY(privilege_drop, tc) {
isc_result_t result;
isc_task_t *task1 = NULL, *task2 = NULL;
isc_event_t *event;
int a = -1, b = -1, c = -1, d = -1, e = -1; /* non valid states */
int i = 0;
UNUSED(tc);
counter = 1;
result = isc_mutex_init(&set_lock);
ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
result = isc_test_begin(NULL, ISC_TRUE);
ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
#ifdef ISC_PLATFORM_USETHREADS
/*
* Pause the task manager so we can fill up the work queue
* without things happening while we do it.
*/
isc__taskmgr_pause(taskmgr);
#endif
result = isc_task_create(taskmgr, 0, &task1);
ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
isc_task_setname(task1, "privileged", NULL);
ATF_CHECK(!isc_task_privilege(task1));
isc_task_setprivilege(task1, ISC_TRUE);
ATF_CHECK(isc_task_privilege(task1));
result = isc_task_create(taskmgr, 0, &task2);
ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
isc_task_setname(task2, "normal", NULL);
ATF_CHECK(!isc_task_privilege(task2));
/* First event: privileged */
event = isc_event_allocate(mctx, task1, ISC_TASKEVENT_TEST,
set_and_drop, &a, sizeof (isc_event_t));
ATF_REQUIRE(event != NULL);
ATF_CHECK_EQ(a, -1);
isc_task_send(task1, &event);
/* Second event: not privileged */
event = isc_event_allocate(mctx, task2, ISC_TASKEVENT_TEST,
set_and_drop, &b, sizeof (isc_event_t));
ATF_REQUIRE(event != NULL);
ATF_CHECK_EQ(b, -1);
isc_task_send(task2, &event);
/* Third event: privileged */
event = isc_event_allocate(mctx, task1, ISC_TASKEVENT_TEST,
set_and_drop, &c, sizeof (isc_event_t));
ATF_REQUIRE(event != NULL);
ATF_CHECK_EQ(c, -1);
isc_task_send(task1, &event);
/* Fourth event: privileged */
event = isc_event_allocate(mctx, task1, ISC_TASKEVENT_TEST,
set_and_drop, &d, sizeof (isc_event_t));
ATF_REQUIRE(event != NULL);
ATF_CHECK_EQ(d, -1);
isc_task_send(task1, &event);
/* Fifth event: not privileged */
event = isc_event_allocate(mctx, task2, ISC_TASKEVENT_TEST,
set_and_drop, &e, sizeof (isc_event_t));
ATF_REQUIRE(event != NULL);
ATF_CHECK_EQ(e, -1);
isc_task_send(task2, &event);
ATF_CHECK_EQ(isc_taskmgr_mode(taskmgr), isc_taskmgrmode_normal);
isc_taskmgr_setmode(taskmgr, isc_taskmgrmode_privileged);
ATF_CHECK_EQ(isc_taskmgr_mode(taskmgr), isc_taskmgrmode_privileged);
#ifdef ISC_PLATFORM_USETHREADS
isc__taskmgr_resume(taskmgr);
#endif
/* We're waiting for all variables to be set. */
while ((a == -1 || b == -1 || c == -1 || d == -1 || e == -1) &&
i++ < 5000) {
#ifndef ISC_PLATFORM_USETHREADS
while (isc__taskmgr_ready(taskmgr))
isc__taskmgr_dispatch(taskmgr);
#endif
isc_test_nap(1000);
}
/*
* We can't guarantee what order the events fire, but
* we do know *exactly one* of the privileged tasks will
* have run in privileged mode...
*/
ATF_CHECK(a == isc_taskmgrmode_privileged ||
c == isc_taskmgrmode_privileged ||
d == isc_taskmgrmode_privileged);
ATF_CHECK(a + c + d == isc_taskmgrmode_privileged);
/* ...and neither of the non-privileged tasks did... */
ATF_CHECK(b == isc_taskmgrmode_normal || e == isc_taskmgrmode_normal);
/* ...but all five of them did run. */
ATF_CHECK_EQ(counter, 6);
ATF_CHECK_EQ(isc_taskmgr_mode(taskmgr), isc_taskmgrmode_normal);
isc_task_destroy(&task1);
ATF_REQUIRE_EQ(task1, NULL);
isc_task_destroy(&task2);
ATF_REQUIRE_EQ(task2, NULL);
isc_test_end();
}
static int
t_timers5(void) {
char *p;
int result;
isc_mem_t *mctx;
isc_taskmgr_t *tmgr;
unsigned int workers;
isc_result_t isc_result;
isc_timermgr_t *timermgr;
isc_event_t *event;
isc_time_t expires;
isc_interval_t interval;
T5_startflag = 0;
T5_shutdownflag = 0;
T5_eventcnt = 0;
workers = 2;
p = t_getenv("ISC_TASK_WORKERS");
if (p != NULL)
workers = atoi(p);
mctx = NULL;
isc_result = isc_mem_create(0, 0, &mctx);
if (isc_result != ISC_R_SUCCESS) {
t_info("isc_mem_create failed %s\n",
isc_result_totext(isc_result));
return(T_UNRESOLVED);
}
isc_result = isc_mutex_init(&T5_mx);
if (isc_result != ISC_R_SUCCESS) {
t_info("isc_mutex_init failed %s\n",
isc_result_totext(isc_result));
isc_mem_destroy(&mctx);
return(T_UNRESOLVED);
}
isc_result = isc_condition_init(&T5_cv);
if (isc_result != ISC_R_SUCCESS) {
t_info("isc_condition_init failed %s\n",
isc_result_totext(isc_result));
DESTROYLOCK(&T5_mx);
isc_mem_destroy(&mctx);
return(T_UNRESOLVED);
}
tmgr = NULL;
isc_result = isc_taskmgr_create(mctx, workers, 0, &tmgr);
if (isc_result != ISC_R_SUCCESS) {
t_info("isc_taskmgr_create failed %s\n",
isc_result_totext(isc_result));
DESTROYLOCK(&T5_mx);
(void) isc_condition_destroy(&T5_cv);
isc_mem_destroy(&mctx);
return(T_UNRESOLVED);
}
timermgr = NULL;
isc_result = isc_timermgr_create(mctx, &timermgr);
if (isc_result != ISC_R_SUCCESS) {
t_info("isc_timermgr_create failed %s\n",
isc_result_totext(isc_result));
isc_taskmgr_destroy(&tmgr);
DESTROYLOCK(&T5_mx);
(void) isc_condition_destroy(&T5_cv);
isc_mem_destroy(&mctx);
return(T_UNRESOLVED);
}
T5_task1 = NULL;
isc_result = isc_task_create(tmgr, 0, &T5_task1);
if (isc_result != ISC_R_SUCCESS) {
t_info("isc_task_create failed %s\n",
isc_result_totext(isc_result));
isc_timermgr_destroy(&timermgr);
isc_taskmgr_destroy(&tmgr);
DESTROYLOCK(&T5_mx);
(void) isc_condition_destroy(&T5_cv);
isc_mem_destroy(&mctx);
return(T_UNRESOLVED);
}
isc_result = isc_task_onshutdown(T5_task1, t5_shutdown_event, NULL);
if (isc_result != ISC_R_SUCCESS) {
t_info("isc_task_onshutdown failed %s\n",
isc_result_totext(isc_result));
isc_timermgr_destroy(&timermgr);
isc_task_destroy(&T5_task1);
isc_taskmgr_destroy(&tmgr);
DESTROYLOCK(&T5_mx);
(void) isc_condition_destroy(&T5_cv);
isc_mem_destroy(&mctx);
return(T_UNRESOLVED);
}
T5_task2 = NULL;
isc_result = isc_task_create(tmgr, 0, &T5_task2);
if (isc_result != ISC_R_SUCCESS) {
t_info("isc_task_create failed %s\n",
isc_result_totext(isc_result));
isc_timermgr_destroy(&timermgr);
isc_task_destroy(&T5_task1);
isc_taskmgr_destroy(&tmgr);
DESTROYLOCK(&T5_mx);
(void) isc_condition_destroy(&T5_cv);
isc_mem_destroy(&mctx);
return(T_UNRESOLVED);
}
isc_result = isc_mutex_lock(&T5_mx);
if (isc_result != ISC_R_SUCCESS) {
t_info("isc_mutex_lock failed %s\n",
isc_result_totext(isc_result));
isc_timermgr_destroy(&timermgr);
isc_taskmgr_destroy(&tmgr);
DESTROYLOCK(&T5_mx);
(void) isc_condition_destroy(&T5_cv);
isc_mem_destroy(&mctx);
return(T_UNRESOLVED);
}
event = isc_event_allocate(mctx, (void *)1 , (isc_eventtype_t)1,
t5_start_event, NULL, sizeof(*event));
isc_task_send(T5_task1, &event);
isc_time_settoepoch(&expires);
isc_interval_set(&interval, T5_SECONDS, 0);
T5_tickertimer = NULL;
isc_result = isc_timer_create(timermgr, isc_timertype_ticker,
&expires, &interval, T5_task1,
t5_tick_event, NULL, &T5_tickertimer);
if (isc_result != ISC_R_SUCCESS) {
isc_timermgr_destroy(&timermgr);
(void) isc_condition_signal(&T5_cv);
(void) isc_mutex_unlock(&T5_mx);
isc_task_destroy(&T5_task1);
isc_task_destroy(&T5_task2);
isc_taskmgr_destroy(&tmgr);
DESTROYLOCK(&T5_mx);
(void) isc_condition_destroy(&T5_cv);
isc_mem_destroy(&mctx);
return(T_UNRESOLVED);
}
T5_oncetimer = NULL;
isc_interval_set(&interval, (T5_SECONDS * T5_NTICKS) + 2, 0);
isc_result = isc_time_nowplusinterval(&expires, &interval);
if (isc_result != ISC_R_SUCCESS) {
isc_timer_detach(&T5_tickertimer);
isc_timermgr_destroy(&timermgr);
(void)isc_condition_signal(&T5_cv);
(void)isc_mutex_unlock(&T5_mx);
isc_task_destroy(&T5_task1);
isc_task_destroy(&T5_task2);
isc_taskmgr_destroy(&tmgr);
DESTROYLOCK(&T5_mx);
(void) isc_condition_destroy(&T5_cv);
isc_mem_destroy(&mctx);
return(T_UNRESOLVED);
}
isc_interval_set(&interval, 0, 0);
isc_result = isc_timer_create(timermgr, isc_timertype_once,
&expires, &interval, T5_task2,
t5_once_event, NULL, &T5_oncetimer);
if (isc_result != ISC_R_SUCCESS) {
isc_timer_detach(&T5_tickertimer);
isc_timermgr_destroy(&timermgr);
(void) isc_condition_signal(&T5_cv);
(void) isc_mutex_unlock(&T5_mx);
isc_task_destroy(&T5_task1);
isc_task_destroy(&T5_task2);
isc_taskmgr_destroy(&tmgr);
DESTROYLOCK(&T5_mx);
(void) isc_condition_destroy(&T5_cv);
isc_mem_destroy(&mctx);
++T5_nprobs;
return(T_UNRESOLVED);
}
/*
* Wait for shutdown processing to complete.
*/
while (! T5_shutdownflag) {
isc_result = isc_condition_wait(&T5_cv, &T5_mx);
if (isc_result != ISC_R_SUCCESS) {
t_info("isc_condition_waituntil failed %s\n",
isc_result_totext(isc_result));
++T5_nprobs;
}
}
isc_result = isc_mutex_unlock(&T5_mx);
if (isc_result != ISC_R_SUCCESS) {
t_info("isc_mutex_unlock failed %s\n",
isc_result_totext(isc_result));
++T5_nprobs;
}
if (T5_eventcnt != 1) {
t_info("processed %d events\n", T5_eventcnt);
++T5_nfails;
}
isc_timer_detach(&T5_tickertimer);
isc_timer_detach(&T5_oncetimer);
isc_timermgr_destroy(&timermgr);
isc_task_destroy(&T5_task1);
isc_task_destroy(&T5_task2);
isc_taskmgr_destroy(&tmgr);
DESTROYLOCK(&T5_mx);
(void) isc_condition_destroy(&T5_cv);
isc_mem_destroy(&mctx);
result = T_UNRESOLVED;
if ((T5_nfails == 0) && (T5_nprobs == 0))
result = T_PASS;
else if (T5_nfails)
result = T_FAIL;
return (result);
}
static void
initctx2(isc_task_t *task, isc_event_t *event) {
dns_requestevent_t *reqev = (dns_requestevent_t *)event;
isc_result_t result;
dns_message_t *query = NULL, *response = NULL;
isc_buffer_t outtoken;
unsigned char array[DNS_NAME_MAXTEXT + 1];
dns_rdataset_t *rdataset;
dns_rdatatype_t qtype;
dns_name_t *question_name;
UNUSED(task);
REQUIRE(reqev != NULL);
query = reqev->ev_arg;
if (reqev->result != ISC_R_SUCCESS) {
fprintf(stderr, "I:request event result: %s\n",
isc_result_totext(reqev->result));
goto end;
}
response = NULL;
result = dns_message_create(mctx, DNS_MESSAGE_INTENTPARSE, &response);
CHECK("dns_message_create", result);
result = dns_request_getresponse(reqev->request, response,
DNS_MESSAGEPARSE_PRESERVEORDER);
CHECK("dns_request_getresponse", result);
if (response->rcode != dns_rcode_noerror) {
result = ISC_RESULTCLASS_DNSRCODE + response->rcode;
fprintf(stderr, "I:response rcode: %s\n",
isc_result_totext(result));
goto end;
}
printf("Received token from server, calling gss_init_sec_context()\n");
isc_buffer_init(&outtoken, array, DNS_NAME_MAXTEXT + 1);
result = dns_tkey_processgssresponse(query, response,
dns_fixedname_name(&gssname),
&gssctx, &outtoken,
&tsigkey, ring, NULL);
gssctx = *gssctxp;
CHECK("dns_tkey_processgssresponse", result);
printf("Context accepted\n");
question_name = NULL;
dns_message_currentname(response, DNS_SECTION_ANSWER, &question_name);
rdataset = ISC_LIST_HEAD(question_name->list);
INSIST(rdataset != NULL);
qtype = rdataset->type;
if (qtype == dns_rdatatype_tkey) {
printf("Received TKEY response from server\n");
printf("Context completed\n");
} else {
printf("Did not receive TKEY response from server\n");
printf("Context not completed\n");
dns_tsigkey_detach(&tsigkey);
tsigkey = NULL;
}
dns_message_destroy(&response);
end:
if (query != NULL)
dns_message_destroy(&query);
if (reqev->request != NULL)
dns_request_destroy(&reqev->request);
isc_event_free(&event);
event = isc_event_allocate(mctx, (void *)1, 1, console, NULL,
sizeof(*event));
isc_task_send(task, &event);
return;
}
static void
dispatch(isc__timermgr_t *manager, isc_time_t *now) {
isc_boolean_t done = ISC_FALSE, post_event, need_schedule;
isc_timerevent_t *event;
isc_eventtype_t type = 0;
isc__timer_t *timer;
isc_result_t result;
isc_boolean_t idle;
/*!
* The caller must be holding the manager lock.
*/
while (manager->nscheduled > 0 && !done) {
timer = isc_heap_element(manager->heap, 1);
INSIST(timer->type != isc_timertype_inactive);
if (isc_time_compare(now, &timer->due) >= 0) {
if (timer->type == isc_timertype_ticker) {
type = ISC_TIMEREVENT_TICK;
post_event = ISC_TRUE;
need_schedule = ISC_TRUE;
} else if (timer->type == isc_timertype_limited) {
int cmp;
cmp = isc_time_compare(now, &timer->expires);
if (cmp >= 0) {
type = ISC_TIMEREVENT_LIFE;
post_event = ISC_TRUE;
need_schedule = ISC_FALSE;
} else {
type = ISC_TIMEREVENT_TICK;
post_event = ISC_TRUE;
need_schedule = ISC_TRUE;
}
} else if (!isc_time_isepoch(&timer->expires) &&
isc_time_compare(now,
&timer->expires) >= 0) {
type = ISC_TIMEREVENT_LIFE;
post_event = ISC_TRUE;
need_schedule = ISC_FALSE;
} else {
idle = ISC_FALSE;
LOCK(&timer->lock);
if (!isc_time_isepoch(&timer->idle) &&
isc_time_compare(now,
&timer->idle) >= 0) {
idle = ISC_TRUE;
}
UNLOCK(&timer->lock);
if (idle) {
type = ISC_TIMEREVENT_IDLE;
post_event = ISC_TRUE;
need_schedule = ISC_FALSE;
} else {
/*
* Idle timer has been touched;
* reschedule.
*/
XTRACEID(isc_msgcat_get(isc_msgcat,
ISC_MSGSET_TIMER,
ISC_MSG_IDLERESCHED,
"idle reschedule"),
timer);
post_event = ISC_FALSE;
need_schedule = ISC_TRUE;
}
}
if (post_event) {
XTRACEID(isc_msgcat_get(isc_msgcat,
ISC_MSGSET_TIMER,
ISC_MSG_POSTING,
"posting"), timer);
/*
* XXX We could preallocate this event.
*/
event = (isc_timerevent_t *)isc_event_allocate(manager->mctx,
timer,
type,
timer->action,
timer->arg,
sizeof(*event));
if (event != NULL) {
event->due = timer->due;
isc_task_send(timer->task,
ISC_EVENT_PTR(&event));
} else
UNEXPECTED_ERROR(__FILE__, __LINE__, "%s",
isc_msgcat_get(isc_msgcat,
ISC_MSGSET_TIMER,
ISC_MSG_EVENTNOTALLOC,
"couldn't "
"allocate event"));
}
timer->index = 0;
isc_heap_delete(manager->heap, 1);
manager->nscheduled--;
if (need_schedule) {
result = schedule(timer, now, ISC_FALSE);
if (result != ISC_R_SUCCESS)
UNEXPECTED_ERROR(__FILE__, __LINE__,
"%s: %u",
isc_msgcat_get(isc_msgcat,
ISC_MSGSET_TIMER,
ISC_MSG_SCHEDFAIL,
"couldn't schedule "
"timer"),
result);
}
} else {
manager->due = timer->due;
done = ISC_TRUE;
}
}
}
static void
initctx1(isc_task_t *task, isc_event_t *event) {
char gssid[512];
char contextname[512];
isc_result_t result;
isc_buffer_t buf;
dns_message_t *query;
dns_request_t *request;
int c;
isc_event_free(&event);
printf("Initctx - GSS name => ");
c = scanf("%511s", gssid);
if (c == EOF)
return;
snprintf(contextname, sizeof(contextname),
"gsstest.context.%d.", (int)time(NULL));
printf("Initctx - context name we're using: %s\n", contextname);
printf("Negotiating GSSAPI context: ");
printf("%s", gssid);
printf("\n");
/*
* Setup a GSSAPI context with the server
*/
dns_fixedname_init(&servername);
isc_buffer_init(&buf, contextname, strlen(contextname));
isc_buffer_add(&buf, strlen(contextname));
result = dns_name_fromtext(dns_fixedname_name(&servername), &buf,
dns_rootname, 0, NULL);
CHECK("dns_name_fromtext", result);
/* Make name happen */
dns_fixedname_init(&gssname);
isc_buffer_init(&buf, gssid, strlen(gssid));
isc_buffer_add(&buf, strlen(gssid));
result = dns_name_fromtext(dns_fixedname_name(&gssname), &buf,
dns_rootname, 0, NULL);
CHECK("dns_name_fromtext", result);
query = NULL;
result = dns_message_create(mctx, DNS_MESSAGE_INTENTRENDER, &query);
CHECK("dns_message_create", result);
printf("Calling gss_init_sec_context()\n");
gssctx = GSS_C_NO_CONTEXT;
result = dns_tkey_buildgssquery(query, dns_fixedname_name(&servername),
dns_fixedname_name(&gssname),
NULL, 36000, &gssctx, ISC_TRUE,
mctx, NULL);
CHECK("dns_tkey_buildgssquery", result);
printf("Sending context token to server\n");
request = NULL;
result = dns_request_create(requestmgr, query, &address, 0, NULL,
TIMEOUT, task, initctx2, query, &request);
CHECK("dns_request_create", result);
return;
end:
event = isc_event_allocate(mctx, (void *)1, 1, console, NULL,
sizeof(*event));
isc_task_send(task, &event);return;
}