isc_result_t
isccc_cc_createresponse(isccc_sexpr_t *message, isccc_time_t now,
isccc_time_t expires, isccc_sexpr_t **alistp)
{
char *_frm, *_to, *type = NULL;
isc_uint32_t serial;
isccc_sexpr_t *alist, *_ctrl, *_data;
isc_result_t result;
REQUIRE(alistp != NULL && *alistp == NULL);
_ctrl = isccc_alist_lookup(message, "_ctrl");
_data = isccc_alist_lookup(message, "_data");
if (!isccc_alist_alistp(_ctrl) || !isccc_alist_alistp(_data) ||
isccc_cc_lookupuint32(_ctrl, "_ser", &serial) != ISC_R_SUCCESS ||
isccc_cc_lookupstring(_data, "type", &type) != ISC_R_SUCCESS)
return (ISC_R_FAILURE);
/*
* _frm and _to are optional.
*/
_frm = NULL;
(void)isccc_cc_lookupstring(_ctrl, "_frm", &_frm);
_to = NULL;
(void)isccc_cc_lookupstring(_ctrl, "_to", &_to);
/*
* Create the response.
*/
alist = NULL;
result = isccc_cc_createmessage(1, _to, _frm, serial, now, expires,
&alist);
if (result != ISC_R_SUCCESS)
return (result);
_ctrl = isccc_alist_lookup(alist, "_ctrl");
if (_ctrl == NULL) {
result = ISC_R_FAILURE;
goto bad;
}
_data = isccc_alist_lookup(alist, "_data");
if (_data == NULL) {
result = ISC_R_FAILURE;
goto bad;
}
if (isccc_cc_definestring(_ctrl, "_rpl", "1") == NULL ||
isccc_cc_definestring(_data, "type", type) == NULL)
{
result = ISC_R_NOMEMORY;
goto bad;
}
*alistp = alist;
return (ISC_R_SUCCESS);
bad:
isccc_sexpr_free(&alist);
return (result);
}
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);
}
}
isc_result_t
isccc_cc_checkdup(isccc_symtab_t *symtab, isccc_sexpr_t *message,
isccc_time_t now)
{
const char *_frm;
const char *_to;
char *_ser = NULL, *_tim = NULL, *tmp;
isc_result_t result;
char *key;
size_t len;
isccc_symvalue_t value;
isccc_sexpr_t *_ctrl;
_ctrl = isccc_alist_lookup(message, "_ctrl");
if (!isccc_alist_alistp(_ctrl) ||
isccc_cc_lookupstring(_ctrl, "_ser", &_ser) != ISC_R_SUCCESS ||
isccc_cc_lookupstring(_ctrl, "_tim", &_tim) != ISC_R_SUCCESS)
return (ISC_R_FAILURE);
INSIST(_ser != NULL);
INSIST(_tim != NULL);
/*
* _frm and _to are optional.
*/
tmp = NULL;
if (isccc_cc_lookupstring(_ctrl, "_frm", &tmp) != ISC_R_SUCCESS)
_frm = "";
else
_frm = tmp;
tmp = NULL;
if (isccc_cc_lookupstring(_ctrl, "_to", &tmp) != ISC_R_SUCCESS)
_to = "";
else
_to = tmp;
/*
* Ensure there is no newline in any of the strings. This is so
* we can write them to a file later.
*/
if (has_whitespace(_frm) || has_whitespace(_to) ||
has_whitespace(_ser) || has_whitespace(_tim))
return (ISC_R_FAILURE);
len = strlen(_frm) + strlen(_to) + strlen(_ser) + strlen(_tim) + 4;
key = malloc(len);
if (key == NULL)
return (ISC_R_NOMEMORY);
snprintf(key, len, "%s;%s;%s;%s", _frm, _to, _ser, _tim);
value.as_uinteger = now;
result = isccc_symtab_define(symtab, key, ISCCC_SYMTYPE_CCDUP, value,
isccc_symexists_reject);
if (result != ISC_R_SUCCESS) {
free(key);
return (result);
}
return (ISC_R_SUCCESS);
}
isc_result_t
isccc_cc_createack(isccc_sexpr_t *message, isc_boolean_t ok,
isccc_sexpr_t **ackp)
{
char *_frm, *_to;
isc_uint32_t serial;
isccc_sexpr_t *ack, *_ctrl;
isc_result_t result;
isccc_time_t t;
REQUIRE(ackp != NULL && *ackp == NULL);
_ctrl = isccc_alist_lookup(message, "_ctrl");
if (!isccc_alist_alistp(_ctrl) ||
isccc_cc_lookupuint32(_ctrl, "_ser", &serial) != ISC_R_SUCCESS ||
isccc_cc_lookupuint32(_ctrl, "_tim", &t) != ISC_R_SUCCESS)
return (ISC_R_FAILURE);
/*
* _frm and _to are optional.
*/
_frm = NULL;
(void)isccc_cc_lookupstring(_ctrl, "_frm", &_frm);
_to = NULL;
(void)isccc_cc_lookupstring(_ctrl, "_to", &_to);
/*
* Create the ack.
*/
ack = NULL;
result = createmessage(1, _to, _frm, serial, t, 0, &ack, ISC_FALSE);
if (result != ISC_R_SUCCESS)
return (result);
_ctrl = isccc_alist_lookup(ack, "_ctrl");
if (_ctrl == NULL) {
result = ISC_R_FAILURE;
goto bad;
}
if (isccc_cc_definestring(ack, "_ack", (ok) ? "1" : "0") == NULL) {
result = ISC_R_NOMEMORY;
goto bad;
}
*ackp = ack;
return (ISC_R_SUCCESS);
bad:
isccc_sexpr_free(&ack);
return (result);
}
isc_boolean_t
isccc_cc_isreply(isccc_sexpr_t *message) {
isccc_sexpr_t *_ctrl;
_ctrl = isccc_alist_lookup(message, "_ctrl");
if (!isccc_alist_alistp(_ctrl))
return (ISC_FALSE);
if (isccc_cc_lookupstring(_ctrl, "_rpl", NULL) == ISC_R_SUCCESS)
return (ISC_TRUE);
return (ISC_FALSE);
}
isc_boolean_t
isccc_cc_isack(isccc_sexpr_t *message)
{
isccc_sexpr_t *_ctrl;
_ctrl = isccc_alist_lookup(message, "_ctrl");
if (_ctrl == NULL)
return (ISC_FALSE);
if (isccc_cc_lookupstring(_ctrl, "_ack", NULL) == ISC_R_SUCCESS)
return (ISC_TRUE);
return (ISC_FALSE);
}
/*%
* 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);
}
/*%
* 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;
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);
}
