static void
done(isc_task_t *task, isc_event_t *event) {
dns_byaddrevent_t *bevent;
dns_byaddr_t *byaddr;
dns_name_t *name;
REQUIRE(event->ev_type == DNS_EVENT_BYADDRDONE);
bevent = (dns_byaddrevent_t *)event;
UNUSED(task);
printf("byaddr event result = %s\n",
isc_result_totext(bevent->result));
if (bevent->result == ISC_R_SUCCESS) {
for (name = ISC_LIST_HEAD(bevent->names);
name != NULL;
name = ISC_LIST_NEXT(name, link)) {
char text[DNS_NAME_FORMATSIZE];
dns_name_format(name, text, sizeof(text));
printf("%s\n", text);
}
}
byaddr = event->ev_sender;
dns_byaddr_destroy(&byaddr);
isc_event_free(&event);
isc_app_shutdown();
}
static void
recvquery(isc_task_t *task, isc_event_t *event) {
dns_requestevent_t *reqev = (dns_requestevent_t *)event;
isc_result_t result;
dns_message_t *query, *response;
char keyname[256];
isc_buffer_t keynamebuf;
int type;
UNUSED(task);
REQUIRE(reqev != NULL);
if (reqev->result != ISC_R_SUCCESS) {
fprintf(stderr, "I:request event result: %s\n",
isc_result_totext(reqev->result));
exit(-1);
}
query = reqev->ev_arg;
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));
exit(-1);
}
result = dns_tkey_processdhresponse(query, response, ourkey, &nonce,
&tsigkey, ring);
CHECK("dns_tkey_processdhresponse", result);
/*
* Yes, this is a hack.
*/
isc_buffer_init(&keynamebuf, keyname, sizeof(keyname));
result = dst_key_buildfilename(tsigkey->key, 0, "", &keynamebuf);
CHECK("dst_key_buildfilename", result);
printf("%.*s\n", (int)isc_buffer_usedlength(&keynamebuf),
(char *)isc_buffer_base(&keynamebuf));
type = DST_TYPE_PRIVATE | DST_TYPE_PUBLIC | DST_TYPE_KEY;
result = dst_key_tofile(tsigkey->key, type, "");
CHECK("dst_key_tofile", result);
dns_message_destroy(&query);
dns_message_destroy(&response);
dns_request_destroy(&reqev->request);
isc_event_free(&event);
isc_app_shutdown();
return;
}
/*
* Callback from dighost.c to allow program-specific shutdown code.
* Here, we're possibly reading from a batch file, then shutting down
* for real if there's nothing in the batch file to read.
*/
void
dighost_shutdown(void) {
char batchline[MXNAME];
int bargc;
char *bargv[16];
char *input;
int i;
if (batchname == NULL) {
isc_app_shutdown();
return;
}
fflush(stdout);
if (feof(batchfp)) {
batchname = NULL;
isc_app_shutdown();
if (batchfp != stdin)
fclose(batchfp);
return;
}
if (fgets(batchline, sizeof(batchline), batchfp) != 0) {
debug("batch line %s", batchline);
bargc = 1;
input = batchline;
bargv[bargc] = next_token(&input, " \t\r\n");
while ((bargv[bargc] != NULL) && (bargc < 14)) {
bargc++;
bargv[bargc] = next_token(&input, " \t\r\n");
}
bargv[0] = argv0;
for(i = 0; i < bargc; i++)
debug("batch argv %d: %s", i, bargv[i]);
parse_args(ISC_TRUE, ISC_FALSE, bargc, (char **)bargv);
start_lookup();
} else {
batchname = NULL;
if (batchfp != stdin)
fclose(batchfp);
isc_app_shutdown();
return;
}
}
static void
rndc_recvdone(isc_task_t *task, isc_event_t *event) {
isccc_sexpr_t *response = NULL;
isccc_sexpr_t *data;
isccc_region_t source;
char *errormsg = NULL;
char *textmsg = NULL;
isc_result_t result;
recvs--;
if (ccmsg.result == ISC_R_EOF)
fatal("connection to remote host closed\n"
"This may indicate that\n"
"* the remote server is using an older version of"
" the command protocol,\n"
"* this host is not authorized to connect,\n"
"* the clocks are not synchronized, or\n"
"* the key is invalid.");
if (ccmsg.result != ISC_R_SUCCESS)
fatal("recv failed: %s", isc_result_totext(ccmsg.result));
source.rstart = isc_buffer_base(&ccmsg.buffer);
source.rend = isc_buffer_used(&ccmsg.buffer);
DO("parse message",
isccc_cc_fromwire(&source, &response, algorithm, &secret));
data = isccc_alist_lookup(response, "_data");
if (data == NULL)
fatal("no data section in response");
result = isccc_cc_lookupstring(data, "err", &errormsg);
if (result == ISC_R_SUCCESS) {
failed = ISC_TRUE;
fprintf(stderr, "%s: '%s' failed: %s\n",
progname, command, errormsg);
}
else if (result != ISC_R_NOTFOUND)
fprintf(stderr, "%s: parsing response failed: %s\n",
progname, isc_result_totext(result));
result = isccc_cc_lookupstring(data, "text", &textmsg);
if (result == ISC_R_SUCCESS) {
if ((!quiet || failed) && strlen(textmsg) != 0U)
fprintf(failed ? stderr : stdout, "%s\n", textmsg);
} else if (result != ISC_R_NOTFOUND)
fprintf(stderr, "%s: parsing response failed: %s\n",
progname, isc_result_totext(result));
isc_event_free(&event);
isccc_sexpr_free(&response);
if (sends == 0 && recvs == 0) {
isc_socket_detach(&sock);
isc_task_shutdown(task);
RUNTIME_CHECK(isc_app_shutdown() == ISC_R_SUCCESS);
}
}
static void
recvresponse(isc_task_t *task, isc_event_t *event) {
dns_requestevent_t *reqev = (dns_requestevent_t *)event;
isc_result_t result;
dns_message_t *query, *response;
isc_buffer_t outbuf;
char output[1024];
UNUSED(task);
REQUIRE(reqev != NULL);
if (reqev->result != ISC_R_SUCCESS) {
fprintf(stderr, "I:request event result: %s\n",
isc_result_totext(reqev->result));
exit(-1);
}
query = reqev->ev_arg;
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));
exit(-1);
}
if (response->counts[DNS_SECTION_ANSWER] != 1U) {
fprintf(stderr, "I:response answer count (%u!=1)\n",
response->counts[DNS_SECTION_ANSWER]);
}
isc_buffer_init(&outbuf, output, sizeof(output));
result = dns_message_sectiontotext(response, DNS_SECTION_ANSWER,
&dns_master_style_simple,
DNS_MESSAGETEXTFLAG_NOCOMMENTS,
&outbuf);
CHECK("dns_message_sectiontotext", result);
printf("%.*s", (int)isc_buffer_usedlength(&outbuf),
(char *)isc_buffer_base(&outbuf));
fflush(stdout);
dns_message_destroy(&query);
dns_message_destroy(&response);
dns_request_destroy(&reqev->request);
isc_event_free(&event);
if (--onfly == 0)
isc_app_shutdown();
return;
}
static void
do_find(isc_boolean_t want_event) {
isc_result_t result;
isc_boolean_t done = ISC_FALSE;
unsigned int options;
options = DNS_ADBFIND_INET | DNS_ADBFIND_INET6;
if (want_event)
options |= DNS_ADBFIND_WANTEVENT | DNS_ADBFIND_EMPTYEVENT;
dns_fixedname_init(&target);
result = dns_adb_createfind(view->adb, task, adb_callback, NULL,
dns_fixedname_name(&fixed),
dns_rootname, 0, options, 0,
dns_fixedname_name(&target), 0,
&find);
if (result == ISC_R_SUCCESS) {
if (!ISC_LIST_EMPTY(find->list)) {
/*
* We have at least some of the addresses for the
* name.
*/
INSIST((find->options & DNS_ADBFIND_WANTEVENT) == 0);
print_addresses(find);
done = ISC_TRUE;
} else {
/*
* We don't know any of the addresses for this
* name.
*/
if ((find->options & DNS_ADBFIND_WANTEVENT) == 0) {
/*
* And ADB isn't going to send us any events
* either. This query loses.
*/
done = ISC_TRUE;
}
/*
* If the DNS_ADBFIND_WANTEVENT flag was set, we'll
* get an event when something happens.
*/
}
} else if (result == DNS_R_ALIAS) {
print_name(dns_fixedname_name(&target));
done = ISC_TRUE;
} else {
printf("dns_adb_createfind() returned %s\n",
isc_result_totext(result));
done = ISC_TRUE;
}
if (done) {
if (find != NULL)
dns_adb_destroyfind(&find);
isc_app_shutdown();
}
}
static void
adb_callback(isc_task_t *etask, isc_event_t *event) {
unsigned int type = event->ev_type;
REQUIRE(etask == task);
isc_event_free(&event);
dns_adb_destroyfind(&find);
if (type == DNS_EVENT_ADBMOREADDRESSES)
do_find(ISC_FALSE);
else if (type == DNS_EVENT_ADBNOMOREADDRESSES) {
printf("no more addresses\n");
isc_app_shutdown();
} else {
printf("unexpected ADB event type %u\n", type);
isc_app_shutdown();
}
}
static void
shutdown_all(isc_task_t *task, isc_event_t *event) {
int i;
UNUSED(task);
UNUSED(event);
printf("shutdown all\n");
for (i = 0; i < NEVENTS; i++) {
isc_timer_detach(&timers[i]);
}
isc_app_shutdown();
}
static void
getinput(isc_task_t *task, isc_event_t *event) {
UNUSED(task);
if (global_event == NULL)
global_event = event;
while (in_use) {
get_next_command();
if (ISC_LIST_HEAD(lookup_list) != NULL) {
start_lookup();
return;
}
}
isc_app_shutdown();
}
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
sendqueries(isc_task_t *task, isc_event_t *event) {
isc_result_t result;
isc_event_free(&event);
do {
result = sendquery(task);
} while (result == ISC_R_SUCCESS);
if (onfly == 0)
isc_app_shutdown();
return;
}
static void
rndc_senddone(isc_task_t *task, isc_event_t *event) {
isc_socketevent_t *sevent = (isc_socketevent_t *)event;
UNUSED(task);
sends--;
if (sevent->result != ISC_R_SUCCESS)
fatal("send failed: %s", isc_result_totext(sevent->result));
isc_event_free(&event);
if (sends == 0 && recvs == 0) {
isc_socket_detach(&sock);
isc_task_shutdown(task);
RUNTIME_CHECK(isc_app_shutdown() == ISC_R_SUCCESS);
}
}
/*
* ServiceControl(): Handles requests from the SCM and passes them on
* to named.
*/
void
ServiceControl(DWORD dwCtrlCode) {
/* Handle the requested control code */
switch(dwCtrlCode) {
case SERVICE_CONTROL_INTERROGATE:
UpdateSCM(0);
break;
case SERVICE_CONTROL_SHUTDOWN:
case SERVICE_CONTROL_STOP:
ns_server_flushonshutdown(ns_g_server, ISC_TRUE);
isc_app_shutdown();
UpdateSCM(SERVICE_STOPPED);
break;
default:
break;
}
}
static void
recvquery(isc_task_t *task, isc_event_t *event) {
dns_requestevent_t *reqev = (dns_requestevent_t *)event;
isc_result_t result;
dns_message_t *query, *response;
UNUSED(task);
REQUIRE(reqev != NULL);
if (reqev->result != ISC_R_SUCCESS) {
fprintf(stderr, "I:request event result: %s\n",
isc_result_totext(reqev->result));
exit(-1);
}
query = reqev->ev_arg;
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));
exit(-1);
}
result = dns_tkey_processdeleteresponse(query, response, ring);
CHECK("dns_tkey_processdhresponse", result);
dns_message_destroy(&query);
dns_message_destroy(&response);
dns_request_destroy(&reqev->request);
isc_event_free(&event);
isc_app_shutdown();
return;
}
static void
setup(void)
{
for (;;) {
char serveraddress[512];
struct in_addr inaddr;
int c;
printf("Server IP => ");
c = scanf("%511s", serveraddress);
if (c == EOF || strcmp(serveraddress, "quit") == 0) {
isc_app_shutdown();
return;
}
if (inet_pton(AF_INET, serveraddress, &inaddr) == 1) {
isc_sockaddr_fromin(&address, &inaddr, PORT);
return;
}
}
}
static void
recvdone(isc_task_t *task, isc_event_t *event) {
isc_socketevent_t *sevent = (isc_socketevent_t *)event;
isc_buffer_t source;
isc_result_t result;
dns_message_t *response;
REQUIRE(sevent != NULL);
REQUIRE(sevent->ev_type == ISC_SOCKEVENT_RECVDONE);
REQUIRE(task == task1);
printf("recvdone\n");
if (sevent->result != ISC_R_SUCCESS) {
printf("failed\n");
exit(-1);
}
isc_buffer_init(&source, sevent->region.base, sevent->region.length);
isc_buffer_add(&source, sevent->n);
response = NULL;
result = dns_message_create(mctx, DNS_MESSAGE_INTENTPARSE, &response);
CHECK("dns_message_create", result);
result = dns_message_parse(response, &source, 0);
CHECK("dns_message_parse", result);
isc_buffer_init(&outbuf, output, sizeof(output));
result = dns_message_totext(response, style, 0, &outbuf);
CHECK("dns_message_totext", result);
printf("%.*s\n", (int)isc_buffer_usedlength(&outbuf),
(char *)isc_buffer_base(&outbuf));
dns_message_destroy(&response);
isc_event_free(&event);
isc_app_shutdown();
}
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);
}
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");
}
}
/*
* This function is called to process the incoming command
* when a control channel message is received.
*/
isc_result_t
ns_control_docommand(isccc_sexpr_t *message, isc_buffer_t *text) {
isccc_sexpr_t *data;
char *command;
isc_result_t result;
data = isccc_alist_lookup(message, "_data");
if (data == NULL) {
/*
* No data section.
*/
return (ISC_R_FAILURE);
}
result = isccc_cc_lookupstring(data, "type", &command);
if (result != ISC_R_SUCCESS) {
/*
* We have no idea what this is.
*/
return (result);
}
isc_log_write(ns_g_lctx, NS_LOGCATEGORY_GENERAL,
NS_LOGMODULE_CONTROL, ISC_LOG_DEBUG(1),
"received control channel command '%s'",
command);
/*
* Compare the 'command' parameter against all known control commands.
*/
if (command_compare(command, NS_COMMAND_RELOAD)) {
result = ns_server_reloadcommand(ns_g_server, command, text);
} else if (command_compare(command, NS_COMMAND_RECONFIG)) {
result = ns_server_reconfigcommand(ns_g_server, command);
} else if (command_compare(command, NS_COMMAND_REFRESH)) {
result = ns_server_refreshcommand(ns_g_server, command, text);
} else if (command_compare(command, NS_COMMAND_RETRANSFER)) {
result = ns_server_retransfercommand(ns_g_server, command);
} else if (command_compare(command, NS_COMMAND_HALT)) {
ns_server_flushonshutdown(ns_g_server, ISC_FALSE);
ns_os_shutdownmsg(command, text);
isc_app_shutdown();
result = ISC_R_SUCCESS;
} else if (command_compare(command, NS_COMMAND_STOP)) {
ns_server_flushonshutdown(ns_g_server, ISC_TRUE);
ns_os_shutdownmsg(command, text);
isc_app_shutdown();
result = ISC_R_SUCCESS;
} else if (command_compare(command, NS_COMMAND_DUMPSTATS)) {
result = ns_server_dumpstats(ns_g_server);
} else if (command_compare(command, NS_COMMAND_QUERYLOG)) {
result = ns_server_togglequerylog(ns_g_server);
} else if (command_compare(command, NS_COMMAND_DUMPDB)) {
ns_server_dumpdb(ns_g_server, command);
result = ISC_R_SUCCESS;
} else if (command_compare(command, NS_COMMAND_TRACE)) {
result = ns_server_setdebuglevel(ns_g_server, command);
} else if (command_compare(command, NS_COMMAND_NOTRACE)) {
ns_g_debuglevel = 0;
isc_log_setdebuglevel(ns_g_lctx, ns_g_debuglevel);
result = ISC_R_SUCCESS;
} else if (command_compare(command, NS_COMMAND_FLUSH)) {
result = ns_server_flushcache(ns_g_server, command);
} else if (command_compare(command, NS_COMMAND_FLUSHNAME)) {
result = ns_server_flushname(ns_g_server, command);
} else if (command_compare(command, NS_COMMAND_STATUS)) {
result = ns_server_status(ns_g_server, text);
} else if (command_compare(command, NS_COMMAND_FREEZE)) {
result = ns_server_freeze(ns_g_server, ISC_TRUE, command);
} else if (command_compare(command, NS_COMMAND_UNFREEZE) ||
command_compare(command, NS_COMMAND_THAW)) {
result = ns_server_freeze(ns_g_server, ISC_FALSE, command);
} else if (command_compare(command, NS_COMMAND_RECURSING)) {
result = ns_server_dumprecursing(ns_g_server);
} else if (command_compare(command, NS_COMMAND_NULL)) {
result = ISC_R_SUCCESS;
} else {
isc_log_write(ns_g_lctx, NS_LOGCATEGORY_GENERAL,
NS_LOGMODULE_CONTROL, ISC_LOG_WARNING,
"unknown control channel command '%s'",
command);
result = DNS_R_UNKNOWNCOMMAND;
}
return (result);
}
/*%
* This function is called to process the incoming command
* when a control channel message is received.
*/
isc_result_t
named_control_docommand(isccc_sexpr_t *message, isc_boolean_t readonly,
isc_buffer_t **text)
{
isccc_sexpr_t *data;
char *cmdline = NULL;
char *command = NULL;
isc_result_t result;
int log_level;
isc_buffer_t src;
isc_lex_t *lex = NULL;
#ifdef HAVE_LIBSCF
named_smf_want_disable = 0;
#endif
data = isccc_alist_lookup(message, "_data");
if (!isccc_alist_alistp(data)) {
/*
* No data section.
*/
return (ISC_R_FAILURE);
}
result = isccc_cc_lookupstring(data, "type", &cmdline);
if (result != ISC_R_SUCCESS) {
/*
* We have no idea what this is.
*/
return (result);
}
result = isc_lex_create(named_g_mctx, strlen(cmdline), &lex);
if (result != ISC_R_SUCCESS)
return (result);
isc_buffer_init(&src, cmdline, strlen(cmdline));
isc_buffer_add(&src, strlen(cmdline));
result = isc_lex_openbuffer(lex, &src);
if (result != ISC_R_SUCCESS)
goto cleanup;
result = getcommand(lex, &command);
if (result != ISC_R_SUCCESS)
goto cleanup;
/*
* Compare the 'command' parameter against all known control commands.
*/
if (command_compare(command, NAMED_COMMAND_NULL) ||
command_compare(command, NAMED_COMMAND_STATUS))
{
log_level = ISC_LOG_DEBUG(1);
} else {
log_level = ISC_LOG_INFO;
}
/*
* If this listener should have read-only access, reject
* restricted commands here. rndc nta is handled specially
* below.
*/
if (readonly &&
!command_compare(command, NAMED_COMMAND_NTA) &&
!command_compare(command, NAMED_COMMAND_NULL) &&
!command_compare(command, NAMED_COMMAND_STATUS) &&
!command_compare(command, NAMED_COMMAND_SHOWZONE) &&
!command_compare(command, NAMED_COMMAND_TESTGEN) &&
!command_compare(command, NAMED_COMMAND_ZONESTATUS))
{
isc_log_write(named_g_lctx, NAMED_LOGCATEGORY_GENERAL,
NAMED_LOGMODULE_CONTROL, log_level,
"rejecting restricted control channel "
"command '%s'", cmdline);
result = ISC_R_FAILURE;
goto cleanup;
}
isc_log_write(named_g_lctx, NAMED_LOGCATEGORY_GENERAL,
NAMED_LOGMODULE_CONTROL, log_level,
"received control channel command '%s'",
cmdline);
if (command_compare(command, NAMED_COMMAND_RELOAD)) {
result = named_server_reloadcommand(named_g_server, lex, text);
} else if (command_compare(command, NAMED_COMMAND_RECONFIG)) {
result = named_server_reconfigcommand(named_g_server);
} else if (command_compare(command, NAMED_COMMAND_REFRESH)) {
result = named_server_refreshcommand(named_g_server, lex, text);
} else if (command_compare(command, NAMED_COMMAND_RETRANSFER)) {
result = named_server_retransfercommand(named_g_server,
lex, text);
} else if (command_compare(command, NAMED_COMMAND_HALT)) {
#ifdef HAVE_LIBSCF
/*
* If we are managed by smf(5), AND in chroot, then
* we cannot connect to the smf repository, so just
* return with an appropriate message back to rndc.
*/
if (named_smf_got_instance == 1 && named_smf_chroot == 1) {
result = named_smf_add_message(text);
goto cleanup;
}
/*
* If we are managed by smf(5) but not in chroot,
* try to disable ourselves the smf way.
*/
if (named_smf_got_instance == 1 && named_smf_chroot == 0)
named_smf_want_disable = 1;
/*
* If named_smf_got_instance = 0, named_smf_chroot
* is not relevant and we fall through to
* isc_app_shutdown below.
*/
#endif
/* Do not flush master files */
named_server_flushonshutdown(named_g_server, ISC_FALSE);
named_os_shutdownmsg(cmdline, *text);
isc_app_shutdown();
result = ISC_R_SUCCESS;
} else if (command_compare(command, NAMED_COMMAND_STOP)) {
/*
* "stop" is the same as "halt" except it does
* flush master files.
*/
#ifdef HAVE_LIBSCF
if (named_smf_got_instance == 1 && named_smf_chroot == 1) {
result = named_smf_add_message(text);
goto cleanup;
}
if (named_smf_got_instance == 1 && named_smf_chroot == 0)
named_smf_want_disable = 1;
#endif
named_server_flushonshutdown(named_g_server, ISC_TRUE);
named_os_shutdownmsg(cmdline, *text);
isc_app_shutdown();
result = ISC_R_SUCCESS;
} else if (command_compare(command, NAMED_COMMAND_DUMPSTATS)) {
result = named_server_dumpstats(named_g_server);
} else if (command_compare(command, NAMED_COMMAND_QUERYLOG)) {
result = named_server_togglequerylog(named_g_server, lex);
} else if (command_compare(command, NAMED_COMMAND_DUMPDB)) {
named_server_dumpdb(named_g_server, lex, text);
result = ISC_R_SUCCESS;
} else if (command_compare(command, NAMED_COMMAND_SECROOTS)) {
result = named_server_dumpsecroots(named_g_server, lex, text);
} else if (command_compare(command, NAMED_COMMAND_TRACE)) {
result = named_server_setdebuglevel(named_g_server, lex);
} else if (command_compare(command, NAMED_COMMAND_NOTRACE)) {
named_g_debuglevel = 0;
isc_log_setdebuglevel(named_g_lctx, named_g_debuglevel);
result = ISC_R_SUCCESS;
} else if (command_compare(command, NAMED_COMMAND_FLUSH)) {
result = named_server_flushcache(named_g_server, lex);
} else if (command_compare(command, NAMED_COMMAND_FLUSHNAME)) {
result = named_server_flushnode(named_g_server, lex, ISC_FALSE);
} else if (command_compare(command, NAMED_COMMAND_FLUSHTREE)) {
result = named_server_flushnode(named_g_server, lex, ISC_TRUE);
} else if (command_compare(command, NAMED_COMMAND_STATUS)) {
result = named_server_status(named_g_server, text);
} else if (command_compare(command, NAMED_COMMAND_TSIGLIST)) {
result = named_server_tsiglist(named_g_server, text);
} else if (command_compare(command, NAMED_COMMAND_TSIGDELETE)) {
result = named_server_tsigdelete(named_g_server, lex, text);
} else if (command_compare(command, NAMED_COMMAND_FREEZE)) {
result = named_server_freeze(named_g_server, ISC_TRUE, lex,
text);
} else if (command_compare(command, NAMED_COMMAND_UNFREEZE) ||
command_compare(command, NAMED_COMMAND_THAW)) {
result = named_server_freeze(named_g_server, ISC_FALSE, lex,
text);
} else if (command_compare(command, NAMED_COMMAND_SCAN)) {
result = ISC_R_SUCCESS;
named_server_scan_interfaces(named_g_server);
} else if (command_compare(command, NAMED_COMMAND_SYNC)) {
result = named_server_sync(named_g_server, lex, text);
} else if (command_compare(command, NAMED_COMMAND_RECURSING)) {
result = named_server_dumprecursing(named_g_server);
} else if (command_compare(command, NAMED_COMMAND_TIMERPOKE)) {
result = ISC_R_SUCCESS;
isc_timermgr_poke(named_g_timermgr);
} else if (command_compare(command, NAMED_COMMAND_NULL)) {
result = ISC_R_SUCCESS;
} else if (command_compare(command, NAMED_COMMAND_NOTIFY)) {
result = named_server_notifycommand(named_g_server, lex, text);
} else if (command_compare(command, NAMED_COMMAND_VALIDATION)) {
result = named_server_validation(named_g_server, lex, text);
} else if (command_compare(command, NAMED_COMMAND_SIGN) ||
command_compare(command, NAMED_COMMAND_LOADKEYS)) {
result = named_server_rekey(named_g_server, lex, text);
} else if (command_compare(command, NAMED_COMMAND_ADDZONE) ||
command_compare(command, NAMED_COMMAND_MODZONE)) {
result = named_server_changezone(named_g_server, cmdline, text);
} else if (command_compare(command, NAMED_COMMAND_DELZONE)) {
result = named_server_delzone(named_g_server, lex, text);
} else if (command_compare(command, NAMED_COMMAND_SHOWZONE)) {
result = named_server_showzone(named_g_server, lex, text);
} else if (command_compare(command, NAMED_COMMAND_SIGNING)) {
result = named_server_signing(named_g_server, lex, text);
} else if (command_compare(command, NAMED_COMMAND_ZONESTATUS)) {
result = named_server_zonestatus(named_g_server, lex, text);
} else if (command_compare(command, NAMED_COMMAND_NTA)) {
result = named_server_nta(named_g_server, lex, readonly, text);
} else if (command_compare(command, NAMED_COMMAND_TESTGEN)) {
result = named_server_testgen(lex, text);
} else if (command_compare(command, NAMED_COMMAND_MKEYS)) {
result = named_server_mkeys(named_g_server, lex, text);
} else if (command_compare(command, NAMED_COMMAND_DNSTAP) ||
command_compare(command, NAMED_COMMAND_DNSTAPREOPEN)) {
result = named_server_dnstap(named_g_server, lex, text);
} else if (command_compare(command, NAMED_COMMAND_TCPTIMEOUTS)) {
result = named_server_tcptimeouts(lex, text);
} else if (command_compare(command, NAMED_COMMAND_SERVESTALE)) {
result = named_server_servestale(named_g_server, lex, text);
} else {
isc_log_write(named_g_lctx, NAMED_LOGCATEGORY_GENERAL,
NAMED_LOGMODULE_CONTROL, ISC_LOG_WARNING,
"unknown control channel command '%s'",
command);
result = DNS_R_UNKNOWNCOMMAND;
}
cleanup:
if (lex != NULL)
isc_lex_destroy(&lex);
return (result);
}
/*%
* This function is called to process the incoming command
* when a control channel message is received.
*/
isc_result_t
ns_control_docommand(isccc_sexpr_t *message, isc_buffer_t *text) {
isccc_sexpr_t *data;
char *command = NULL;
isc_result_t result;
int log_level;
#ifdef HAVE_LIBSCF
ns_smf_want_disable = 0;
#endif
data = isccc_alist_lookup(message, "_data");
if (data == NULL) {
/*
* No data section.
*/
return (ISC_R_FAILURE);
}
result = isccc_cc_lookupstring(data, "type", &command);
if (result != ISC_R_SUCCESS) {
/*
* We have no idea what this is.
*/
return (result);
}
/*
* Compare the 'command' parameter against all known control commands.
*/
if (command_compare(command, NS_COMMAND_NULL) ||
command_compare(command, NS_COMMAND_STATUS)) {
log_level = ISC_LOG_DEBUG(1);
} else {
log_level = ISC_LOG_INFO;
}
isc_log_write(ns_g_lctx, NS_LOGCATEGORY_GENERAL,
NS_LOGMODULE_CONTROL, log_level,
"received control channel command '%s'",
command);
if (command_compare(command, NS_COMMAND_RELOAD)) {
result = ns_server_reloadcommand(ns_g_server, command, text);
} else if (command_compare(command, NS_COMMAND_RECONFIG)) {
result = ns_server_reconfigcommand(ns_g_server, command);
} else if (command_compare(command, NS_COMMAND_REFRESH)) {
result = ns_server_refreshcommand(ns_g_server, command, text);
} else if (command_compare(command, NS_COMMAND_RETRANSFER)) {
result = ns_server_retransfercommand(ns_g_server,
command, text);
} else if (command_compare(command, NS_COMMAND_HALT)) {
#ifdef HAVE_LIBSCF
/*
* If we are managed by smf(5), AND in chroot, then
* we cannot connect to the smf repository, so just
* return with an appropriate message back to rndc.
*/
if (ns_smf_got_instance == 1 && ns_smf_chroot == 1) {
result = ns_smf_add_message(text);
return (result);
}
/*
* If we are managed by smf(5) but not in chroot,
* try to disable ourselves the smf way.
*/
if (ns_smf_got_instance == 1 && ns_smf_chroot == 0)
ns_smf_want_disable = 1;
/*
* If ns_smf_got_instance = 0, ns_smf_chroot
* is not relevant and we fall through to
* isc_app_shutdown below.
*/
#endif
/* Do not flush master files */
ns_server_flushonshutdown(ns_g_server, ISC_FALSE);
ns_os_shutdownmsg(command, text);
isc_app_shutdown();
result = ISC_R_SUCCESS;
} else if (command_compare(command, NS_COMMAND_STOP)) {
/*
* "stop" is the same as "halt" except it does
* flush master files.
*/
#ifdef HAVE_LIBSCF
if (ns_smf_got_instance == 1 && ns_smf_chroot == 1) {
result = ns_smf_add_message(text);
return (result);
}
if (ns_smf_got_instance == 1 && ns_smf_chroot == 0)
ns_smf_want_disable = 1;
#endif
ns_server_flushonshutdown(ns_g_server, ISC_TRUE);
ns_os_shutdownmsg(command, text);
isc_app_shutdown();
result = ISC_R_SUCCESS;
} else if (command_compare(command, NS_COMMAND_DUMPSTATS)) {
result = ns_server_dumpstats(ns_g_server);
} else if (command_compare(command, NS_COMMAND_QUERYLOG)) {
result = ns_server_togglequerylog(ns_g_server, command);
} else if (command_compare(command, NS_COMMAND_DUMPDB)) {
ns_server_dumpdb(ns_g_server, command);
result = ISC_R_SUCCESS;
} else if (command_compare(command, NS_COMMAND_SECROOTS)) {
result = ns_server_dumpsecroots(ns_g_server, command);
} else if (command_compare(command, NS_COMMAND_TRACE)) {
result = ns_server_setdebuglevel(ns_g_server, command);
} else if (command_compare(command, NS_COMMAND_NOTRACE)) {
ns_g_debuglevel = 0;
isc_log_setdebuglevel(ns_g_lctx, ns_g_debuglevel);
result = ISC_R_SUCCESS;
} else if (command_compare(command, NS_COMMAND_FLUSH)) {
result = ns_server_flushcache(ns_g_server, command);
} else if (command_compare(command, NS_COMMAND_FLUSHNAME)) {
result = ns_server_flushnode(ns_g_server, command, ISC_FALSE);
} else if (command_compare(command, NS_COMMAND_FLUSHTREE)) {
result = ns_server_flushnode(ns_g_server, command, ISC_TRUE);
} else if (command_compare(command, NS_COMMAND_STATUS)) {
result = ns_server_status(ns_g_server, text);
} else if (command_compare(command, NS_COMMAND_TSIGLIST)) {
result = ns_server_tsiglist(ns_g_server, text);
} else if (command_compare(command, NS_COMMAND_TSIGDELETE)) {
result = ns_server_tsigdelete(ns_g_server, command, text);
} else if (command_compare(command, NS_COMMAND_FREEZE)) {
result = ns_server_freeze(ns_g_server, ISC_TRUE, command,
text);
} else if (command_compare(command, NS_COMMAND_UNFREEZE) ||
command_compare(command, NS_COMMAND_THAW)) {
result = ns_server_freeze(ns_g_server, ISC_FALSE, command,
text);
} else if (command_compare(command, NS_COMMAND_SCAN)) {
result = ISC_R_SUCCESS;
ns_server_scan_interfaces(ns_g_server);
} else if (command_compare(command, NS_COMMAND_SYNC)) {
result = ns_server_sync(ns_g_server, command, text);
} else if (command_compare(command, NS_COMMAND_RECURSING)) {
result = ns_server_dumprecursing(ns_g_server);
} else if (command_compare(command, NS_COMMAND_TIMERPOKE)) {
result = ISC_R_SUCCESS;
isc_timermgr_poke(ns_g_timermgr);
} else if (command_compare(command, NS_COMMAND_NULL)) {
result = ISC_R_SUCCESS;
} else if (command_compare(command, NS_COMMAND_NOTIFY)) {
result = ns_server_notifycommand(ns_g_server, command, text);
} else if (command_compare(command, NS_COMMAND_VALIDATION)) {
result = ns_server_validation(ns_g_server, command, text);
} else if (command_compare(command, NS_COMMAND_SIGN) ||
command_compare(command, NS_COMMAND_LOADKEYS)) {
result = ns_server_rekey(ns_g_server, command, text);
} else if (command_compare(command, NS_COMMAND_ADDZONE)) {
result = ns_server_add_zone(ns_g_server, command, text);
} else if (command_compare(command, NS_COMMAND_DELZONE)) {
result = ns_server_del_zone(ns_g_server, command, text);
} else if (command_compare(command, NS_COMMAND_SIGNING)) {
result = ns_server_signing(ns_g_server, command, text);
} else if (command_compare(command, NS_COMMAND_ZONESTATUS)) {
result = ns_server_zonestatus(ns_g_server, command, text);
} else if (command_compare(command, NS_COMMAND_NTA)) {
result = ns_server_nta(ns_g_server, command, text);
} else {
isc_log_write(ns_g_lctx, NS_LOGCATEGORY_GENERAL,
NS_LOGMODULE_CONTROL, ISC_LOG_WARNING,
"unknown control channel command '%s'",
command);
result = DNS_R_UNKNOWNCOMMAND;
}
return (result);
}