/*% load zones from the configuration */
static isc_result_t
load_zones_fromconfig(const cfg_obj_t *config, isc_mem_t *mctx) {
const cfg_listelt_t *element;
const cfg_obj_t *classobj;
const cfg_obj_t *views;
const cfg_obj_t *vconfig;
const char *vclass;
isc_result_t result = ISC_R_SUCCESS;
isc_result_t tresult;
views = NULL;
(void)cfg_map_get(config, "view", &views);
for (element = cfg_list_first(views);
element != NULL;
element = cfg_list_next(element))
{
const char *vname;
vclass = "IN";
vconfig = cfg_listelt_value(element);
if (vconfig != NULL) {
classobj = cfg_tuple_get(vconfig, "class");
if (cfg_obj_isstring(classobj))
vclass = cfg_obj_asstring(classobj);
}
vname = cfg_obj_asstring(cfg_tuple_get(vconfig, "name"));
tresult = configure_view(vclass, vname, config, vconfig, mctx);
if (tresult != ISC_R_SUCCESS)
result = tresult;
}
if (views == NULL) {
tresult = configure_view("IN", "_default", config, NULL, mctx);
if (tresult != ISC_R_SUCCESS)
result = tresult;
}
return (result);
}
isc_result_t
ns_checknames_get(const cfg_obj_t **maps, const char *which,
const cfg_obj_t **obj)
{
const cfg_listelt_t *element;
const cfg_obj_t *checknames;
const cfg_obj_t *type;
const cfg_obj_t *value;
int i;
for (i = 0;; i++) {
if (maps[i] == NULL)
return (ISC_R_NOTFOUND);
checknames = NULL;
if (cfg_map_get(maps[i], "check-names",
&checknames) == ISC_R_SUCCESS) {
/*
* Zone map entry is not a list.
*/
if (checknames != NULL && !cfg_obj_islist(checknames)) {
*obj = checknames;
return (ISC_R_SUCCESS);
}
for (element = cfg_list_first(checknames);
element != NULL;
element = cfg_list_next(element)) {
value = cfg_listelt_value(element);
type = cfg_tuple_get(value, "type");
if (strcasecmp(cfg_obj_asstring(type),
which) == 0) {
*obj = cfg_tuple_get(value, "mode");
return (ISC_R_SUCCESS);
}
}
}
}
}
/*
* Find the definition of the named acl whose name is "name".
*/
static isc_result_t
get_acl_def(const cfg_obj_t *cctx, const char *name, const cfg_obj_t **ret) {
isc_result_t result;
const cfg_obj_t *acls = NULL;
const cfg_listelt_t *elt;
result = cfg_map_get(cctx, "acl", &acls);
if (result != ISC_R_SUCCESS)
return (result);
for (elt = cfg_list_first(acls);
elt != NULL;
elt = cfg_list_next(elt)) {
const cfg_obj_t *acl = cfg_listelt_value(elt);
const char *aclname = cfg_obj_asstring(cfg_tuple_get(acl, "name"));
if (strcasecmp(aclname, name) == 0) {
if (ret != NULL) {
*ret = cfg_tuple_get(acl, "value");
}
return (ISC_R_SUCCESS);
}
}
return (ISC_R_NOTFOUND);
}
/*
* Ensures that both '*global_keylistp' and '*control_keylistp' are
* valid or both are NULL.
*/
static void
get_key_info(const cfg_obj_t *config, const cfg_obj_t *control,
const cfg_obj_t **global_keylistp,
const cfg_obj_t **control_keylistp)
{
isc_result_t result;
const cfg_obj_t *control_keylist = NULL;
const cfg_obj_t *global_keylist = NULL;
REQUIRE(global_keylistp != NULL && *global_keylistp == NULL);
REQUIRE(control_keylistp != NULL && *control_keylistp == NULL);
control_keylist = cfg_tuple_get(control, "keys");
if (!cfg_obj_isvoid(control_keylist) &&
cfg_list_first(control_keylist) != NULL) {
result = cfg_map_get(config, "key", &global_keylist);
if (result == ISC_R_SUCCESS) {
*global_keylistp = global_keylist;
*control_keylistp = control_keylist;
}
}
}
/*% configure the zone */
static isc_result_t
configure_zone(const char *vclass, const char *view,
const cfg_obj_t *zconfig, const cfg_obj_t *vconfig,
const cfg_obj_t *config, isc_mem_t *mctx)
{
int i = 0;
isc_result_t result;
const char *zclass;
const char *zname;
const char *zfile;
const cfg_obj_t *maps[4];
const cfg_obj_t *zoptions = NULL;
const cfg_obj_t *classobj = NULL;
const cfg_obj_t *typeobj = NULL;
const cfg_obj_t *fileobj = NULL;
const cfg_obj_t *dbobj = NULL;
const cfg_obj_t *obj = NULL;
const cfg_obj_t *fmtobj = NULL;
dns_masterformat_t masterformat;
zone_options = DNS_ZONEOPT_CHECKNS | DNS_ZONEOPT_MANYERRORS;
zname = cfg_obj_asstring(cfg_tuple_get(zconfig, "name"));
classobj = cfg_tuple_get(zconfig, "class");
if (!cfg_obj_isstring(classobj))
zclass = vclass;
else
zclass = cfg_obj_asstring(classobj);
zoptions = cfg_tuple_get(zconfig, "options");
maps[i++] = zoptions;
if (vconfig != NULL)
maps[i++] = cfg_tuple_get(vconfig, "options");
if (config != NULL) {
cfg_map_get(config, "options", &obj);
if (obj != NULL)
maps[i++] = obj;
}
maps[i++] = NULL;
cfg_map_get(zoptions, "type", &typeobj);
if (typeobj == NULL)
return (ISC_R_FAILURE);
if (strcasecmp(cfg_obj_asstring(typeobj), "master") != 0)
return (ISC_R_SUCCESS);
cfg_map_get(zoptions, "database", &dbobj);
if (dbobj != NULL)
return (ISC_R_SUCCESS);
cfg_map_get(zoptions, "file", &fileobj);
if (fileobj == NULL)
return (ISC_R_FAILURE);
zfile = cfg_obj_asstring(fileobj);
obj = NULL;
if (get_maps(maps, "check-dup-records", &obj)) {
if (strcasecmp(cfg_obj_asstring(obj), "warn") == 0) {
zone_options |= DNS_ZONEOPT_CHECKDUPRR;
zone_options &= ~DNS_ZONEOPT_CHECKDUPRRFAIL;
} else if (strcasecmp(cfg_obj_asstring(obj), "fail") == 0) {
zone_options |= DNS_ZONEOPT_CHECKDUPRR;
zone_options |= DNS_ZONEOPT_CHECKDUPRRFAIL;
} else if (strcasecmp(cfg_obj_asstring(obj), "ignore") == 0) {
zone_options &= ~DNS_ZONEOPT_CHECKDUPRR;
zone_options &= ~DNS_ZONEOPT_CHECKDUPRRFAIL;
} else
INSIST(0);
} else {
zone_options |= DNS_ZONEOPT_CHECKDUPRR;
zone_options &= ~DNS_ZONEOPT_CHECKDUPRRFAIL;
}
obj = NULL;
if (get_maps(maps, "check-mx", &obj)) {
if (strcasecmp(cfg_obj_asstring(obj), "warn") == 0) {
zone_options |= DNS_ZONEOPT_CHECKMX;
zone_options &= ~DNS_ZONEOPT_CHECKMXFAIL;
} else if (strcasecmp(cfg_obj_asstring(obj), "fail") == 0) {
zone_options |= DNS_ZONEOPT_CHECKMX;
zone_options |= DNS_ZONEOPT_CHECKMXFAIL;
} else if (strcasecmp(cfg_obj_asstring(obj), "ignore") == 0) {
zone_options &= ~DNS_ZONEOPT_CHECKMX;
zone_options &= ~DNS_ZONEOPT_CHECKMXFAIL;
} else
INSIST(0);
} else {
zone_options |= DNS_ZONEOPT_CHECKMX;
zone_options &= ~DNS_ZONEOPT_CHECKMXFAIL;
}
obj = NULL;
if (get_maps(maps, "check-integrity", &obj)) {
if (cfg_obj_asboolean(obj))
zone_options |= DNS_ZONEOPT_CHECKINTEGRITY;
else
zone_options &= ~DNS_ZONEOPT_CHECKINTEGRITY;
} else
zone_options |= DNS_ZONEOPT_CHECKINTEGRITY;
obj = NULL;
if (get_maps(maps, "check-mx-cname", &obj)) {
if (strcasecmp(cfg_obj_asstring(obj), "warn") == 0) {
zone_options |= DNS_ZONEOPT_WARNMXCNAME;
zone_options &= ~DNS_ZONEOPT_IGNOREMXCNAME;
} else if (strcasecmp(cfg_obj_asstring(obj), "fail") == 0) {
zone_options &= ~DNS_ZONEOPT_WARNMXCNAME;
zone_options &= ~DNS_ZONEOPT_IGNOREMXCNAME;
} else if (strcasecmp(cfg_obj_asstring(obj), "ignore") == 0) {
zone_options |= DNS_ZONEOPT_WARNMXCNAME;
zone_options |= DNS_ZONEOPT_IGNOREMXCNAME;
} else
INSIST(0);
} else {
zone_options |= DNS_ZONEOPT_WARNMXCNAME;
zone_options &= ~DNS_ZONEOPT_IGNOREMXCNAME;
}
obj = NULL;
if (get_maps(maps, "check-srv-cname", &obj)) {
if (strcasecmp(cfg_obj_asstring(obj), "warn") == 0) {
zone_options |= DNS_ZONEOPT_WARNSRVCNAME;
zone_options &= ~DNS_ZONEOPT_IGNORESRVCNAME;
} else if (strcasecmp(cfg_obj_asstring(obj), "fail") == 0) {
zone_options &= ~DNS_ZONEOPT_WARNSRVCNAME;
zone_options &= ~DNS_ZONEOPT_IGNORESRVCNAME;
} else if (strcasecmp(cfg_obj_asstring(obj), "ignore") == 0) {
zone_options |= DNS_ZONEOPT_WARNSRVCNAME;
zone_options |= DNS_ZONEOPT_IGNORESRVCNAME;
} else
INSIST(0);
} else {
zone_options |= DNS_ZONEOPT_WARNSRVCNAME;
zone_options &= ~DNS_ZONEOPT_IGNORESRVCNAME;
}
obj = NULL;
if (get_maps(maps, "check-sibling", &obj)) {
if (cfg_obj_asboolean(obj))
zone_options |= DNS_ZONEOPT_CHECKSIBLING;
else
zone_options &= ~DNS_ZONEOPT_CHECKSIBLING;
}
obj = NULL;
if (get_checknames(maps, &obj)) {
if (strcasecmp(cfg_obj_asstring(obj), "warn") == 0) {
zone_options |= DNS_ZONEOPT_CHECKNAMES;
zone_options &= ~DNS_ZONEOPT_CHECKNAMESFAIL;
} else if (strcasecmp(cfg_obj_asstring(obj), "fail") == 0) {
zone_options |= DNS_ZONEOPT_CHECKNAMES;
zone_options |= DNS_ZONEOPT_CHECKNAMESFAIL;
} else if (strcasecmp(cfg_obj_asstring(obj), "ignore") == 0) {
zone_options &= ~DNS_ZONEOPT_CHECKNAMES;
zone_options &= ~DNS_ZONEOPT_CHECKNAMESFAIL;
} else
INSIST(0);
} else {
zone_options |= DNS_ZONEOPT_CHECKNAMES;
zone_options |= DNS_ZONEOPT_CHECKNAMESFAIL;
}
masterformat = dns_masterformat_text;
fmtobj = NULL;
result = config_get(maps, "masterfile-format", &fmtobj);
if (result == ISC_R_SUCCESS) {
const char *masterformatstr = cfg_obj_asstring(fmtobj);
if (strcasecmp(masterformatstr, "text") == 0)
masterformat = dns_masterformat_text;
else if (strcasecmp(masterformatstr, "raw") == 0)
masterformat = dns_masterformat_raw;
else
INSIST(0);
}
result = load_zone(mctx, zname, zfile, masterformat, zclass, NULL);
if (result != ISC_R_SUCCESS)
fprintf(stderr, "%s/%s/%s: %s\n", view, zname, zclass,
dns_result_totext(result));
return(result);
}
isc_result_t
ns_tkeyctx_fromconfig(const cfg_obj_t *options, isc_mem_t *mctx,
isc_entropy_t *ectx, dns_tkeyctx_t **tctxp)
{
isc_result_t result;
dns_tkeyctx_t *tctx = NULL;
const char *s;
isc_uint32_t n;
dns_fixedname_t fname;
dns_name_t *name;
isc_buffer_t b;
const cfg_obj_t *obj;
int type;
result = dns_tkeyctx_create(mctx, ectx, &tctx);
if (result != ISC_R_SUCCESS)
return (result);
obj = NULL;
result = cfg_map_get(options, "tkey-dhkey", &obj);
if (result == ISC_R_SUCCESS) {
s = cfg_obj_asstring(cfg_tuple_get(obj, "name"));
n = cfg_obj_asuint32(cfg_tuple_get(obj, "keyid"));
isc_buffer_constinit(&b, s, strlen(s));
isc_buffer_add(&b, strlen(s));
dns_fixedname_init(&fname);
name = dns_fixedname_name(&fname);
RETERR(dns_name_fromtext(name, &b, dns_rootname, 0, NULL));
type = DST_TYPE_PUBLIC|DST_TYPE_PRIVATE|DST_TYPE_KEY;
RETERR(dst_key_fromfile(name, (dns_keytag_t) n, DNS_KEYALG_DH,
type, NULL, mctx, &tctx->dhkey));
}
obj = NULL;
result = cfg_map_get(options, "tkey-domain", &obj);
if (result == ISC_R_SUCCESS) {
s = cfg_obj_asstring(obj);
isc_buffer_constinit(&b, s, strlen(s));
isc_buffer_add(&b, strlen(s));
dns_fixedname_init(&fname);
name = dns_fixedname_name(&fname);
RETERR(dns_name_fromtext(name, &b, dns_rootname, 0, NULL));
tctx->domain = isc_mem_get(mctx, sizeof(dns_name_t));
if (tctx->domain == NULL) {
result = ISC_R_NOMEMORY;
goto failure;
}
dns_name_init(tctx->domain, NULL);
RETERR(dns_name_dup(name, mctx, tctx->domain));
}
obj = NULL;
result = cfg_map_get(options, "tkey-gssapi-credential", &obj);
if (result == ISC_R_SUCCESS) {
s = cfg_obj_asstring(obj);
isc_buffer_constinit(&b, s, strlen(s));
isc_buffer_add(&b, strlen(s));
dns_fixedname_init(&fname);
name = dns_fixedname_name(&fname);
RETERR(dns_name_fromtext(name, &b, dns_rootname, 0, NULL));
RETERR(dst_gssapi_acquirecred(name, ISC_FALSE, &tctx->gsscred));
}
obj = NULL;
result = cfg_map_get(options, "tkey-gssapi-keytab", &obj);
if (result == ISC_R_SUCCESS) {
s = cfg_obj_asstring(obj);
tctx->gssapi_keytab = isc_mem_strdup(mctx, s);
if (tctx->gssapi_keytab == NULL) {
result = ISC_R_NOMEMORY;
goto failure;
}
}
*tctxp = tctx;
return (ISC_R_SUCCESS);
failure:
dns_tkeyctx_destroy(&tctx);
return (result);
}
/*
* Handle lwresd manager objects
*/
isc_result_t
ns_lwdmanager_create(isc_mem_t *mctx, const cfg_obj_t *lwres,
ns_lwresd_t **lwresdp)
{
ns_lwresd_t *lwresd;
const char *vname;
dns_rdataclass_t vclass;
const cfg_obj_t *obj, *viewobj, *searchobj;
const cfg_listelt_t *element;
isc_result_t result;
INSIST(lwresdp != NULL && *lwresdp == NULL);
lwresd = isc_mem_get(mctx, sizeof(ns_lwresd_t));
if (lwresd == NULL)
return (ISC_R_NOMEMORY);
lwresd->mctx = NULL;
isc_mem_attach(mctx, &lwresd->mctx);
lwresd->view = NULL;
lwresd->search = NULL;
lwresd->refs = 1;
obj = NULL;
(void)cfg_map_get(lwres, "ndots", &obj);
if (obj != NULL)
lwresd->ndots = cfg_obj_asuint32(obj);
else
lwresd->ndots = 1;
RUNTIME_CHECK(isc_mutex_init(&lwresd->lock) == ISC_R_SUCCESS);
lwresd->shutting_down = ISC_FALSE;
viewobj = NULL;
(void)cfg_map_get(lwres, "view", &viewobj);
if (viewobj != NULL) {
vname = cfg_obj_asstring(cfg_tuple_get(viewobj, "name"));
obj = cfg_tuple_get(viewobj, "class");
result = ns_config_getclass(obj, dns_rdataclass_in, &vclass);
if (result != ISC_R_SUCCESS)
goto fail;
} else {
vname = "_default";
vclass = dns_rdataclass_in;
}
result = dns_viewlist_find(&ns_g_server->viewlist, vname, vclass,
&lwresd->view);
if (result != ISC_R_SUCCESS) {
isc_log_write(ns_g_lctx, NS_LOGCATEGORY_GENERAL,
NS_LOGMODULE_LWRESD, ISC_LOG_WARNING,
"couldn't find view %s", vname);
goto fail;
}
searchobj = NULL;
(void)cfg_map_get(lwres, "search", &searchobj);
if (searchobj != NULL) {
lwresd->search = NULL;
result = ns_lwsearchlist_create(lwresd->mctx,
&lwresd->search);
if (result != ISC_R_SUCCESS) {
isc_log_write(ns_g_lctx, NS_LOGCATEGORY_GENERAL,
NS_LOGMODULE_LWRESD, ISC_LOG_WARNING,
"couldn't create searchlist");
goto fail;
}
for (element = cfg_list_first(searchobj);
element != NULL;
element = cfg_list_next(element))
{
const cfg_obj_t *search;
const char *searchstr;
isc_buffer_t namebuf;
dns_fixedname_t fname;
dns_name_t *name;
search = cfg_listelt_value(element);
searchstr = cfg_obj_asstring(search);
dns_fixedname_init(&fname);
name = dns_fixedname_name(&fname);
isc_buffer_init(&namebuf, searchstr,
strlen(searchstr));
isc_buffer_add(&namebuf, strlen(searchstr));
result = dns_name_fromtext(name, &namebuf,
dns_rootname, 0, NULL);
if (result != ISC_R_SUCCESS) {
isc_log_write(ns_g_lctx,
NS_LOGCATEGORY_GENERAL,
NS_LOGMODULE_LWRESD,
ISC_LOG_WARNING,
"invalid name %s in searchlist",
searchstr);
continue;
}
result = ns_lwsearchlist_append(lwresd->search, name);
if (result != ISC_R_SUCCESS) {
isc_log_write(ns_g_lctx,
NS_LOGCATEGORY_GENERAL,
NS_LOGMODULE_LWRESD,
ISC_LOG_WARNING,
"couldn't update searchlist");
goto fail;
}
}
}
lwresd->magic = LWRESD_MAGIC;
*lwresdp = lwresd;
return (ISC_R_SUCCESS);
fail:
if (lwresd->view != NULL)
dns_view_detach(&lwresd->view);
if (lwresd->search != NULL)
ns_lwsearchlist_detach(&lwresd->search);
if (lwresd->mctx != NULL)
isc_mem_detach(&lwresd->mctx);
isc_mem_put(mctx, lwresd, sizeof(ns_lwresd_t));
return (result);
}
static isc_result_t
get_rndckey(isc_mem_t *mctx, controlkeylist_t *keyids) {
isc_result_t result;
cfg_parser_t *pctx = NULL;
cfg_obj_t *config = NULL;
const cfg_obj_t *key = NULL;
const cfg_obj_t *algobj = NULL;
const cfg_obj_t *secretobj = NULL;
const char *algstr = NULL;
const char *secretstr = NULL;
controlkey_t *keyid = NULL;
char secret[1024];
unsigned int algtype;
isc_buffer_t b;
isc_log_write(ns_g_lctx, NS_LOGCATEGORY_GENERAL,
NS_LOGMODULE_CONTROL, ISC_LOG_INFO,
"configuring command channel from '%s'",
ns_g_keyfile);
if (! isc_file_exists(ns_g_keyfile))
return (ISC_R_FILENOTFOUND);
CHECK(cfg_parser_create(mctx, ns_g_lctx, &pctx));
CHECK(cfg_parse_file(pctx, ns_g_keyfile, &cfg_type_rndckey, &config));
CHECK(cfg_map_get(config, "key", &key));
keyid = isc_mem_get(mctx, sizeof(*keyid));
if (keyid == NULL)
CHECK(ISC_R_NOMEMORY);
keyid->keyname = isc_mem_strdup(mctx,
cfg_obj_asstring(cfg_map_getname(key)));
keyid->secret.base = NULL;
keyid->secret.length = 0;
keyid->algorithm = DST_ALG_UNKNOWN;
ISC_LINK_INIT(keyid, link);
if (keyid->keyname == NULL)
CHECK(ISC_R_NOMEMORY);
CHECK(bind9_check_key(key, ns_g_lctx));
(void)cfg_map_get(key, "algorithm", &algobj);
(void)cfg_map_get(key, "secret", &secretobj);
INSIST(algobj != NULL && secretobj != NULL);
algstr = cfg_obj_asstring(algobj);
secretstr = cfg_obj_asstring(secretobj);
if (ns_config_getkeyalgorithm2(algstr, NULL,
&algtype, NULL) != ISC_R_SUCCESS) {
cfg_obj_log(key, ns_g_lctx,
ISC_LOG_WARNING,
"unsupported algorithm '%s' in "
"key '%s' for use with command "
"channel",
algstr, keyid->keyname);
goto cleanup;
}
keyid->algorithm = algtype;
isc_buffer_init(&b, secret, sizeof(secret));
result = isc_base64_decodestring(secretstr, &b);
if (result != ISC_R_SUCCESS) {
cfg_obj_log(key, ns_g_lctx, ISC_LOG_WARNING,
"secret for key '%s' on command channel: %s",
keyid->keyname, isc_result_totext(result));
goto cleanup;
}
keyid->secret.length = isc_buffer_usedlength(&b);
keyid->secret.base = isc_mem_get(mctx,
keyid->secret.length);
if (keyid->secret.base == NULL) {
cfg_obj_log(key, ns_g_lctx, ISC_LOG_WARNING,
"couldn't register key '%s': "
"out of memory", keyid->keyname);
CHECK(ISC_R_NOMEMORY);
}
memmove(keyid->secret.base, isc_buffer_base(&b),
keyid->secret.length);
ISC_LIST_APPEND(*keyids, keyid, link);
keyid = NULL;
result = ISC_R_SUCCESS;
cleanup:
if (keyid != NULL)
free_controlkey(keyid, mctx);
if (config != NULL)
cfg_obj_destroy(pctx, &config);
if (pctx != NULL)
cfg_parser_destroy(&pctx);
return (result);
}
isc_result_t
ns_controls_configure(ns_controls_t *cp, const cfg_obj_t *config,
cfg_aclconfctx_t *aclconfctx)
{
controllistener_t *listener;
controllistenerlist_t new_listeners;
const cfg_obj_t *controlslist = NULL;
const cfg_listelt_t *element, *element2;
char socktext[ISC_SOCKADDR_FORMATSIZE];
ISC_LIST_INIT(new_listeners);
/*
* Get the list of named.conf 'controls' statements.
*/
(void)cfg_map_get(config, "controls", &controlslist);
/*
* Run through the new control channel list, noting sockets that
* are already being listened on and moving them to the new list.
*
* Identifying duplicate addr/port combinations is left to either
* the underlying config code, or to the bind attempt getting an
* address-in-use error.
*/
if (controlslist != NULL) {
for (element = cfg_list_first(controlslist);
element != NULL;
element = cfg_list_next(element)) {
const cfg_obj_t *controls;
const cfg_obj_t *inetcontrols = NULL;
controls = cfg_listelt_value(element);
(void)cfg_map_get(controls, "inet", &inetcontrols);
if (inetcontrols == NULL)
continue;
for (element2 = cfg_list_first(inetcontrols);
element2 != NULL;
element2 = cfg_list_next(element2)) {
const cfg_obj_t *control;
const cfg_obj_t *obj;
isc_sockaddr_t addr;
/*
* The parser handles BIND 8 configuration file
* syntax, so it allows unix phrases as well
* inet phrases with no keys{} clause.
*/
control = cfg_listelt_value(element2);
obj = cfg_tuple_get(control, "address");
addr = *cfg_obj_assockaddr(obj);
if (isc_sockaddr_getport(&addr) == 0)
isc_sockaddr_setport(&addr,
NS_CONTROL_PORT);
isc_sockaddr_format(&addr, socktext,
sizeof(socktext));
isc_log_write(ns_g_lctx,
NS_LOGCATEGORY_GENERAL,
NS_LOGMODULE_CONTROL,
ISC_LOG_DEBUG(9),
"processing control channel %s",
socktext);
update_listener(cp, &listener, control, config,
&addr, aclconfctx, socktext,
isc_sockettype_tcp);
if (listener != NULL)
/*
* Remove the listener from the old
* list, so it won't be shut down.
*/
ISC_LIST_UNLINK(cp->listeners,
listener, link);
else
/*
* This is a new listener.
*/
add_listener(cp, &listener, control,
config, &addr, aclconfctx,
socktext,
isc_sockettype_tcp);
if (listener != NULL)
ISC_LIST_APPEND(new_listeners,
listener, link);
}
}
for (element = cfg_list_first(controlslist);
element != NULL;
element = cfg_list_next(element)) {
const cfg_obj_t *controls;
const cfg_obj_t *unixcontrols = NULL;
controls = cfg_listelt_value(element);
(void)cfg_map_get(controls, "unix", &unixcontrols);
if (unixcontrols == NULL)
continue;
for (element2 = cfg_list_first(unixcontrols);
element2 != NULL;
element2 = cfg_list_next(element2)) {
const cfg_obj_t *control;
const cfg_obj_t *path;
isc_sockaddr_t addr;
isc_result_t result;
/*
* The parser handles BIND 8 configuration file
* syntax, so it allows unix phrases as well
* inet phrases with no keys{} clause.
*/
control = cfg_listelt_value(element2);
path = cfg_tuple_get(control, "path");
result = isc_sockaddr_frompath(&addr,
cfg_obj_asstring(path));
if (result != ISC_R_SUCCESS) {
isc_log_write(ns_g_lctx,
NS_LOGCATEGORY_GENERAL,
NS_LOGMODULE_CONTROL,
ISC_LOG_DEBUG(9),
"control channel '%s': %s",
cfg_obj_asstring(path),
isc_result_totext(result));
continue;
}
isc_log_write(ns_g_lctx,
NS_LOGCATEGORY_GENERAL,
NS_LOGMODULE_CONTROL,
ISC_LOG_DEBUG(9),
"processing control channel '%s'",
cfg_obj_asstring(path));
update_listener(cp, &listener, control, config,
&addr, aclconfctx,
cfg_obj_asstring(path),
isc_sockettype_unix);
if (listener != NULL)
/*
* Remove the listener from the old
* list, so it won't be shut down.
*/
ISC_LIST_UNLINK(cp->listeners,
listener, link);
else
/*
* This is a new listener.
*/
add_listener(cp, &listener, control,
config, &addr, aclconfctx,
cfg_obj_asstring(path),
isc_sockettype_unix);
if (listener != NULL)
ISC_LIST_APPEND(new_listeners,
listener, link);
}
}
} else {
int i;
for (i = 0; i < 2; i++) {
isc_sockaddr_t addr;
if (i == 0) {
struct in_addr localhost;
if (isc_net_probeipv4() != ISC_R_SUCCESS)
continue;
localhost.s_addr = htonl(INADDR_LOOPBACK);
isc_sockaddr_fromin(&addr, &localhost, 0);
} else {
if (isc_net_probeipv6() != ISC_R_SUCCESS)
continue;
isc_sockaddr_fromin6(&addr,
&in6addr_loopback, 0);
}
isc_sockaddr_setport(&addr, NS_CONTROL_PORT);
isc_sockaddr_format(&addr, socktext, sizeof(socktext));
update_listener(cp, &listener, NULL, NULL,
&addr, NULL, socktext,
isc_sockettype_tcp);
if (listener != NULL)
/*
* Remove the listener from the old
* list, so it won't be shut down.
*/
ISC_LIST_UNLINK(cp->listeners,
listener, link);
else
/*
* This is a new listener.
*/
add_listener(cp, &listener, NULL, NULL,
&addr, NULL, socktext,
isc_sockettype_tcp);
if (listener != NULL)
ISC_LIST_APPEND(new_listeners,
listener, link);
}
}
/*
* ns_control_shutdown() will stop whatever is on the global
* listeners list, which currently only has whatever sockaddrs
* were in the previous configuration (if any) that do not
* remain in the current configuration.
*/
controls_shutdown(cp);
/*
* Put all of the valid listeners on the listeners list.
* Anything already on listeners in the process of shutting
* down will be taken care of by listen_done().
*/
ISC_LIST_APPENDLIST(cp->listeners, new_listeners, link);
return (ISC_R_SUCCESS);
}
/*%
* Configure static-stub zone.
*/
static isc_result_t
configure_staticstub(const cfg_obj_t *zconfig, dns_zone_t *zone,
const char *zname, const char *dbtype)
{
int i = 0;
const cfg_obj_t *obj;
isc_mem_t *mctx = dns_zone_getmctx(zone);
dns_db_t *db = NULL;
dns_dbversion_t *dbversion = NULL;
dns_dbnode_t *apexnode = NULL;
dns_name_t apexname;
isc_result_t result;
dns_rdataset_t rdataset;
dns_rdatalist_t rdatalist_ns, rdatalist_a, rdatalist_aaaa;
dns_rdatalist_t* rdatalists[] = {
&rdatalist_ns, &rdatalist_a, &rdatalist_aaaa, NULL
};
dns_rdata_t *rdata;
isc_region_t region;
/* Create the DB beforehand */
RETERR(dns_db_create(mctx, dbtype, dns_zone_getorigin(zone),
dns_dbtype_stub, dns_zone_getclass(zone),
0, NULL, &db));
dns_zone_setdb(zone, db);
dns_rdatalist_init(&rdatalist_ns);
rdatalist_ns.rdclass = dns_zone_getclass(zone);
rdatalist_ns.type = dns_rdatatype_ns;
rdatalist_ns.ttl = STATICSTUB_SERVER_TTL;
dns_rdatalist_init(&rdatalist_a);
rdatalist_a.rdclass = dns_zone_getclass(zone);
rdatalist_a.type = dns_rdatatype_a;
rdatalist_a.ttl = STATICSTUB_SERVER_TTL;
dns_rdatalist_init(&rdatalist_aaaa);
rdatalist_aaaa.rdclass = dns_zone_getclass(zone);
rdatalist_aaaa.type = dns_rdatatype_aaaa;
rdatalist_aaaa.ttl = STATICSTUB_SERVER_TTL;
/* Prepare zone RRs from the configuration */
obj = NULL;
result = cfg_map_get(zconfig, "server-addresses", &obj);
if (result == ISC_R_SUCCESS) {
INSIST(obj != NULL);
result = configure_staticstub_serveraddrs(obj, zone,
&rdatalist_ns,
&rdatalist_a,
&rdatalist_aaaa);
if (result != ISC_R_SUCCESS)
goto cleanup;
}
obj = NULL;
result = cfg_map_get(zconfig, "server-names", &obj);
if (result == ISC_R_SUCCESS) {
INSIST(obj != NULL);
result = configure_staticstub_servernames(obj, zone,
&rdatalist_ns,
zname);
if (result != ISC_R_SUCCESS)
goto cleanup;
}
/*
* Sanity check: there should be at least one NS RR at the zone apex
* to trigger delegation.
*/
if (ISC_LIST_EMPTY(rdatalist_ns.rdata)) {
isc_log_write(ns_g_lctx, NS_LOGCATEGORY_GENERAL,
NS_LOGMODULE_SERVER, ISC_LOG_ERROR,
"No NS record is configured for a "
"static-stub zone '%s'", zname);
result = ISC_R_FAILURE;
goto cleanup;
}
/*
* Now add NS and glue A/AAAA RRsets to the zone DB.
* First open a new version for the add operation and get a pointer
* to the apex node (all RRs are of the apex name).
*/
result = dns_db_newversion(db, &dbversion);
if (result != ISC_R_SUCCESS)
goto cleanup;
dns_name_init(&apexname, NULL);
dns_name_clone(dns_zone_getorigin(zone), &apexname);
result = dns_db_findnode(db, &apexname, ISC_FALSE, &apexnode);
if (result != ISC_R_SUCCESS)
goto cleanup;
/* Add NS RRset */
dns_rdataset_init(&rdataset);
RUNTIME_CHECK(dns_rdatalist_tordataset(&rdatalist_ns, &rdataset)
== ISC_R_SUCCESS);
result = dns_db_addrdataset(db, apexnode, dbversion, 0, &rdataset,
0, NULL);
dns_rdataset_disassociate(&rdataset);
if (result != ISC_R_SUCCESS)
goto cleanup;
/* Add glue A RRset, if any */
if (!ISC_LIST_EMPTY(rdatalist_a.rdata)) {
RUNTIME_CHECK(dns_rdatalist_tordataset(&rdatalist_a, &rdataset)
== ISC_R_SUCCESS);
result = dns_db_addrdataset(db, apexnode, dbversion, 0,
&rdataset, 0, NULL);
dns_rdataset_disassociate(&rdataset);
if (result != ISC_R_SUCCESS)
goto cleanup;
}
/* Add glue AAAA RRset, if any */
if (!ISC_LIST_EMPTY(rdatalist_aaaa.rdata)) {
RUNTIME_CHECK(dns_rdatalist_tordataset(&rdatalist_aaaa,
&rdataset)
== ISC_R_SUCCESS);
result = dns_db_addrdataset(db, apexnode, dbversion, 0,
&rdataset, 0, NULL);
dns_rdataset_disassociate(&rdataset);
if (result != ISC_R_SUCCESS)
goto cleanup;
}
result = ISC_R_SUCCESS;
cleanup:
if (apexnode != NULL)
dns_db_detachnode(db, &apexnode);
if (dbversion != NULL)
dns_db_closeversion(db, &dbversion, ISC_TRUE);
if (db != NULL)
dns_db_detach(&db);
for (i = 0; rdatalists[i] != NULL; i++) {
while ((rdata = ISC_LIST_HEAD(rdatalists[i]->rdata)) != NULL) {
ISC_LIST_UNLINK(rdatalists[i]->rdata, rdata, link);
dns_rdata_toregion(rdata, ®ion);
isc_mem_put(mctx, rdata,
sizeof(*rdata) + region.length);
}
}
return (result);
}
/*%
* Parse the zone update-policy statement.
*/
static isc_result_t
configure_zone_ssutable(const cfg_obj_t *zconfig, dns_zone_t *zone,
const char *zname)
{
const cfg_obj_t *updatepolicy = NULL;
const cfg_listelt_t *element, *element2;
dns_ssutable_t *table = NULL;
isc_mem_t *mctx = dns_zone_getmctx(zone);
isc_boolean_t autoddns = ISC_FALSE;
isc_result_t result;
(void)cfg_map_get(zconfig, "update-policy", &updatepolicy);
if (updatepolicy == NULL) {
dns_zone_setssutable(zone, NULL);
return (ISC_R_SUCCESS);
}
if (cfg_obj_isstring(updatepolicy) &&
strcmp("local", cfg_obj_asstring(updatepolicy)) == 0) {
autoddns = ISC_TRUE;
updatepolicy = NULL;
}
result = dns_ssutable_create(mctx, &table);
if (result != ISC_R_SUCCESS)
return (result);
for (element = cfg_list_first(updatepolicy);
element != NULL;
element = cfg_list_next(element))
{
const cfg_obj_t *stmt = cfg_listelt_value(element);
const cfg_obj_t *mode = cfg_tuple_get(stmt, "mode");
const cfg_obj_t *identity = cfg_tuple_get(stmt, "identity");
const cfg_obj_t *matchtype = cfg_tuple_get(stmt, "matchtype");
const cfg_obj_t *dname = cfg_tuple_get(stmt, "name");
const cfg_obj_t *typelist = cfg_tuple_get(stmt, "types");
const char *str;
isc_boolean_t grant = ISC_FALSE;
isc_boolean_t usezone = ISC_FALSE;
unsigned int mtype = DNS_SSUMATCHTYPE_NAME;
dns_fixedname_t fname, fident;
isc_buffer_t b;
dns_rdatatype_t *types;
unsigned int i, n;
str = cfg_obj_asstring(mode);
if (strcasecmp(str, "grant") == 0)
grant = ISC_TRUE;
else if (strcasecmp(str, "deny") == 0)
grant = ISC_FALSE;
else
INSIST(0);
str = cfg_obj_asstring(matchtype);
if (strcasecmp(str, "name") == 0)
mtype = DNS_SSUMATCHTYPE_NAME;
else if (strcasecmp(str, "subdomain") == 0)
mtype = DNS_SSUMATCHTYPE_SUBDOMAIN;
else if (strcasecmp(str, "wildcard") == 0)
mtype = DNS_SSUMATCHTYPE_WILDCARD;
else if (strcasecmp(str, "self") == 0)
mtype = DNS_SSUMATCHTYPE_SELF;
else if (strcasecmp(str, "selfsub") == 0)
mtype = DNS_SSUMATCHTYPE_SELFSUB;
else if (strcasecmp(str, "selfwild") == 0)
mtype = DNS_SSUMATCHTYPE_SELFWILD;
else if (strcasecmp(str, "ms-self") == 0)
mtype = DNS_SSUMATCHTYPE_SELFMS;
else if (strcasecmp(str, "krb5-self") == 0)
mtype = DNS_SSUMATCHTYPE_SELFKRB5;
else if (strcasecmp(str, "ms-subdomain") == 0)
mtype = DNS_SSUMATCHTYPE_SUBDOMAINMS;
else if (strcasecmp(str, "krb5-subdomain") == 0)
mtype = DNS_SSUMATCHTYPE_SUBDOMAINKRB5;
else if (strcasecmp(str, "tcp-self") == 0)
mtype = DNS_SSUMATCHTYPE_TCPSELF;
else if (strcasecmp(str, "6to4-self") == 0)
mtype = DNS_SSUMATCHTYPE_6TO4SELF;
else if (strcasecmp(str, "zonesub") == 0) {
mtype = DNS_SSUMATCHTYPE_SUBDOMAIN;
usezone = ISC_TRUE;
} else if (strcasecmp(str, "external") == 0)
mtype = DNS_SSUMATCHTYPE_EXTERNAL;
else
INSIST(0);
dns_fixedname_init(&fident);
str = cfg_obj_asstring(identity);
isc_buffer_init(&b, str, strlen(str));
isc_buffer_add(&b, strlen(str));
result = dns_name_fromtext(dns_fixedname_name(&fident), &b,
dns_rootname, 0, NULL);
if (result != ISC_R_SUCCESS) {
cfg_obj_log(identity, ns_g_lctx, ISC_LOG_ERROR,
"'%s' is not a valid name", str);
goto cleanup;
}
dns_fixedname_init(&fname);
if (usezone) {
result = dns_name_copy(dns_zone_getorigin(zone),
dns_fixedname_name(&fname),
NULL);
if (result != ISC_R_SUCCESS) {
cfg_obj_log(identity, ns_g_lctx, ISC_LOG_ERROR,
"error copying origin: %s",
isc_result_totext(result));
goto cleanup;
}
} else {
str = cfg_obj_asstring(dname);
isc_buffer_init(&b, str, strlen(str));
isc_buffer_add(&b, strlen(str));
result = dns_name_fromtext(dns_fixedname_name(&fname),
&b, dns_rootname, 0, NULL);
if (result != ISC_R_SUCCESS) {
cfg_obj_log(identity, ns_g_lctx, ISC_LOG_ERROR,
"'%s' is not a valid name", str);
goto cleanup;
}
}
n = ns_config_listcount(typelist);
if (n == 0)
types = NULL;
else {
types = isc_mem_get(mctx, n * sizeof(dns_rdatatype_t));
if (types == NULL) {
result = ISC_R_NOMEMORY;
goto cleanup;
}
}
i = 0;
for (element2 = cfg_list_first(typelist);
element2 != NULL;
element2 = cfg_list_next(element2))
{
const cfg_obj_t *typeobj;
isc_textregion_t r;
INSIST(i < n);
typeobj = cfg_listelt_value(element2);
str = cfg_obj_asstring(typeobj);
DE_CONST(str, r.base);
r.length = strlen(str);
result = dns_rdatatype_fromtext(&types[i++], &r);
if (result != ISC_R_SUCCESS) {
cfg_obj_log(identity, ns_g_lctx, ISC_LOG_ERROR,
"'%s' is not a valid type", str);
isc_mem_put(mctx, types,
n * sizeof(dns_rdatatype_t));
goto cleanup;
}
}
INSIST(i == n);
result = dns_ssutable_addrule(table, grant,
dns_fixedname_name(&fident),
mtype,
dns_fixedname_name(&fname),
n, types);
if (types != NULL)
isc_mem_put(mctx, types, n * sizeof(dns_rdatatype_t));
if (result != ISC_R_SUCCESS) {
goto cleanup;
}
}
/*
* If "update-policy local;" and a session key exists,
* then use the default policy, which is equivalent to:
* update-policy { grant <session-keyname> zonesub any; };
*/
if (autoddns) {
dns_rdatatype_t any = dns_rdatatype_any;
if (ns_g_server->session_keyname == NULL) {
isc_log_write(ns_g_lctx, NS_LOGCATEGORY_GENERAL,
NS_LOGMODULE_SERVER, ISC_LOG_ERROR,
"failed to enable auto DDNS policy "
"for zone %s: session key not found",
zname);
result = ISC_R_NOTFOUND;
goto cleanup;
}
result = dns_ssutable_addrule(table, ISC_TRUE,
ns_g_server->session_keyname,
DNS_SSUMATCHTYPE_SUBDOMAIN,
dns_zone_getorigin(zone),
1, &any);
if (result != ISC_R_SUCCESS)
goto cleanup;
}
result = ISC_R_SUCCESS;
dns_zone_setssutable(zone, table);
cleanup:
dns_ssutable_detach(&table);
return (result);
}
static isc_result_t
add_initial_keys(const cfg_obj_t *list, dns_tsig_keyring_t *ring,
isc_mem_t *mctx)
{
dns_tsigkey_t *tsigkey = NULL;
const cfg_listelt_t *element;
const cfg_obj_t *key = NULL;
const char *keyid = NULL;
unsigned char *secret = NULL;
int secretalloc = 0;
int secretlen = 0;
isc_result_t ret;
isc_stdtime_t now;
isc_uint16_t bits;
for (element = cfg_list_first(list);
element != NULL;
element = cfg_list_next(element))
{
const cfg_obj_t *algobj = NULL;
const cfg_obj_t *secretobj = NULL;
dns_name_t keyname;
dns_name_t *alg;
const char *algstr;
char keynamedata[1024];
isc_buffer_t keynamesrc, keynamebuf;
const char *secretstr;
isc_buffer_t secretbuf;
key = cfg_listelt_value(element);
keyid = cfg_obj_asstring(cfg_map_getname(key));
algobj = NULL;
secretobj = NULL;
(void)cfg_map_get(key, "algorithm", &algobj);
(void)cfg_map_get(key, "secret", &secretobj);
INSIST(algobj != NULL && secretobj != NULL);
/*
* Create the key name.
*/
dns_name_init(&keyname, NULL);
isc_buffer_init(&keynamesrc, keyid, strlen(keyid));
isc_buffer_add(&keynamesrc, strlen(keyid));
isc_buffer_init(&keynamebuf, keynamedata, sizeof(keynamedata));
ret = dns_name_fromtext(&keyname, &keynamesrc, dns_rootname,
ISC_TRUE, &keynamebuf);
if (ret != ISC_R_SUCCESS)
goto failure;
/*
* Create the algorithm.
*/
algstr = cfg_obj_asstring(algobj);
if (ns_config_getkeyalgorithm(algstr, &alg, &bits)
!= ISC_R_SUCCESS) {
cfg_obj_log(algobj, ns_g_lctx, ISC_LOG_ERROR,
"key '%s': has a unsupported algorithm '%s'",
keyid, algstr);
ret = DNS_R_BADALG;
goto failure;
}
secretstr = cfg_obj_asstring(secretobj);
secretalloc = secretlen = strlen(secretstr) * 3 / 4;
secret = isc_mem_get(mctx, secretlen);
if (secret == NULL) {
ret = ISC_R_NOMEMORY;
goto failure;
}
isc_buffer_init(&secretbuf, secret, secretlen);
ret = isc_base64_decodestring(secretstr, &secretbuf);
if (ret != ISC_R_SUCCESS)
goto failure;
secretlen = isc_buffer_usedlength(&secretbuf);
isc_stdtime_get(&now);
ret = dns_tsigkey_create(&keyname, alg, secret, secretlen,
ISC_FALSE, NULL, now, now,
mctx, ring, &tsigkey);
isc_mem_put(mctx, secret, secretalloc);
secret = NULL;
if (ret != ISC_R_SUCCESS)
goto failure;
/*
* Set digest bits.
*/
dst_key_setbits(tsigkey->key, bits);
dns_tsigkey_detach(&tsigkey);
}
return (ISC_R_SUCCESS);
failure:
cfg_obj_log(key, ns_g_lctx, ISC_LOG_ERROR,
"configuring key '%s': %s", keyid,
isc_result_totext(ret));
if (secret != NULL)
isc_mem_put(mctx, secret, secretalloc);
return (ret);
}
static isc_result_t
configure_dnsseckeys(irs_dnsconf_t *conf, cfg_obj_t *cfgobj,
dns_rdataclass_t rdclass)
{
isc_mem_t *mctx = conf->mctx;
const cfg_obj_t *keys = NULL;
const cfg_obj_t *key, *keylist;
dns_fixedname_t fkeyname;
dns_name_t *keyname_base, *keyname;
const cfg_listelt_t *element, *element2;
isc_result_t result;
isc_uint32_t flags, proto, alg;
const char *keystr, *keynamestr;
unsigned char keydata[4096];
isc_buffer_t keydatabuf_base, *keydatabuf;
dns_rdata_dnskey_t keystruct;
unsigned char rrdata[4096];
isc_buffer_t rrdatabuf;
isc_region_t r;
isc_buffer_t namebuf;
irs_dnsconf_dnskey_t *keyent;
cfg_map_get(cfgobj, "trusted-keys", &keys);
if (keys == NULL)
return (ISC_R_SUCCESS);
for (element = cfg_list_first(keys);
element != NULL;
element = cfg_list_next(element)) {
keylist = cfg_listelt_value(element);
for (element2 = cfg_list_first(keylist);
element2 != NULL;
element2 = cfg_list_next(element2))
{
keydatabuf = NULL;
keyname = NULL;
key = cfg_listelt_value(element2);
flags = cfg_obj_asuint32(cfg_tuple_get(key, "flags"));
proto = cfg_obj_asuint32(cfg_tuple_get(key,
"protocol"));
alg = cfg_obj_asuint32(cfg_tuple_get(key,
"algorithm"));
keynamestr = cfg_obj_asstring(cfg_tuple_get(key,
"name"));
keystruct.common.rdclass = rdclass;
keystruct.common.rdtype = dns_rdatatype_dnskey;
keystruct.mctx = NULL;
ISC_LINK_INIT(&keystruct.common, link);
if (flags > 0xffff)
return (ISC_R_RANGE);
if (proto > 0xff)
return (ISC_R_RANGE);
if (alg > 0xff)
return (ISC_R_RANGE);
keystruct.flags = (isc_uint16_t)flags;
keystruct.protocol = (isc_uint8_t)proto;
keystruct.algorithm = (isc_uint8_t)alg;
isc_buffer_init(&keydatabuf_base, keydata,
sizeof(keydata));
isc_buffer_init(&rrdatabuf, rrdata, sizeof(rrdata));
/* Configure key value */
keystr = cfg_obj_asstring(cfg_tuple_get(key, "key"));
result = isc_base64_decodestring(keystr,
&keydatabuf_base);
if (result != ISC_R_SUCCESS)
return (result);
isc_buffer_usedregion(&keydatabuf_base, &r);
keystruct.datalen = r.length;
keystruct.data = r.base;
result = dns_rdata_fromstruct(NULL,
keystruct.common.rdclass,
keystruct.common.rdtype,
&keystruct, &rrdatabuf);
if (result != ISC_R_SUCCESS)
return (result);
isc_buffer_usedregion(&rrdatabuf, &r);
result = isc_buffer_allocate(mctx, &keydatabuf,
r.length);
if (result != ISC_R_SUCCESS)
return (result);
result = isc_buffer_copyregion(keydatabuf, &r);
if (result != ISC_R_SUCCESS)
goto cleanup;
/* Configure key name */
dns_fixedname_init(&fkeyname);
keyname_base = dns_fixedname_name(&fkeyname);
isc_buffer_constinit(&namebuf, keynamestr,
strlen(keynamestr));
isc_buffer_add(&namebuf, strlen(keynamestr));
result = dns_name_fromtext(keyname_base, &namebuf,
dns_rootname, 0, NULL);
if (result != ISC_R_SUCCESS)
return (result);
keyname = isc_mem_get(mctx, sizeof(*keyname));
if (keyname == NULL) {
result = ISC_R_NOMEMORY;
goto cleanup;
}
dns_name_init(keyname, NULL);
result = dns_name_dup(keyname_base, mctx, keyname);
if (result != ISC_R_SUCCESS)
goto cleanup;
/* Add the key data to the list */
keyent = isc_mem_get(mctx, sizeof(*keyent));
if (keyent == NULL) {
dns_name_free(keyname, mctx);
result = ISC_R_NOMEMORY;
goto cleanup;
}
keyent->keyname = keyname;
keyent->keydatabuf = keydatabuf;
ISC_LIST_APPEND(conf->trusted_keylist, keyent, link);
}
}
return (ISC_R_SUCCESS);
cleanup:
if (keydatabuf != NULL)
isc_buffer_free(&keydatabuf);
if (keyname != NULL)
isc_mem_put(mctx, keyname, sizeof(*keyname));
return (result);
}
isc_result_t
ns_statschannels_configure(ns_server_t *server, const cfg_obj_t *config,
cfg_aclconfctx_t *aclconfctx)
{
ns_statschannel_t *listener, *listener_next;
ns_statschannellist_t new_listeners;
const cfg_obj_t *statschannellist = NULL;
const cfg_listelt_t *element, *element2;
char socktext[ISC_SOCKADDR_FORMATSIZE];
RUNTIME_CHECK(isc_once_do(&once, init_desc) == ISC_R_SUCCESS);
ISC_LIST_INIT(new_listeners);
/*
* Get the list of named.conf 'statistics-channels' statements.
*/
(void)cfg_map_get(config, "statistics-channels", &statschannellist);
/*
* Run through the new address/port list, noting sockets that are
* already being listened on and moving them to the new list.
*
* Identifying duplicate addr/port combinations is left to either
* the underlying config code, or to the bind attempt getting an
* address-in-use error.
*/
if (statschannellist != NULL) {
#ifndef HAVE_LIBXML2
isc_log_write(ns_g_lctx, NS_LOGCATEGORY_GENERAL,
NS_LOGMODULE_SERVER, ISC_LOG_WARNING,
"statistics-channels specified but not effective "
"due to missing XML library");
#endif
for (element = cfg_list_first(statschannellist);
element != NULL;
element = cfg_list_next(element)) {
const cfg_obj_t *statschannel;
const cfg_obj_t *listenercfg = NULL;
statschannel = cfg_listelt_value(element);
(void)cfg_map_get(statschannel, "inet",
&listenercfg);
if (listenercfg == NULL)
continue;
for (element2 = cfg_list_first(listenercfg);
element2 != NULL;
element2 = cfg_list_next(element2)) {
const cfg_obj_t *listen_params;
const cfg_obj_t *obj;
isc_sockaddr_t addr;
listen_params = cfg_listelt_value(element2);
obj = cfg_tuple_get(listen_params, "address");
addr = *cfg_obj_assockaddr(obj);
if (isc_sockaddr_getport(&addr) == 0)
isc_sockaddr_setport(&addr, NS_STATSCHANNEL_HTTPPORT);
isc_sockaddr_format(&addr, socktext,
sizeof(socktext));
isc_log_write(ns_g_lctx,
NS_LOGCATEGORY_GENERAL,
NS_LOGMODULE_SERVER,
ISC_LOG_DEBUG(9),
"processing statistics "
"channel %s",
socktext);
update_listener(server, &listener,
listen_params, config, &addr,
aclconfctx, socktext);
if (listener != NULL) {
/*
* Remove the listener from the old
* list, so it won't be shut down.
*/
ISC_LIST_UNLINK(server->statschannels,
listener, link);
} else {
/*
* This is a new listener.
*/
isc_result_t r;
r = add_listener(server, &listener,
listen_params, config,
&addr, aclconfctx,
socktext);
if (r != ISC_R_SUCCESS) {
cfg_obj_log(listen_params,
ns_g_lctx,
ISC_LOG_WARNING,
"couldn't allocate "
"statistics channel"
" %s: %s",
socktext,
isc_result_totext(r));
}
}
if (listener != NULL)
ISC_LIST_APPEND(new_listeners, listener,
link);
}
}
}
for (listener = ISC_LIST_HEAD(server->statschannels);
listener != NULL;
listener = listener_next) {
listener_next = ISC_LIST_NEXT(listener, link);
ISC_LIST_UNLINK(server->statschannels, listener, link);
shutdown_listener(listener);
}
ISC_LIST_APPENDLIST(server->statschannels, new_listeners, link);
return (ISC_R_SUCCESS);
}
/*% configure the zone */
static isc_result_t
configure_zone(const char *vclass, const char *view,
const cfg_obj_t *zconfig, const cfg_obj_t *vconfig,
const cfg_obj_t *config, isc_mem_t *mctx)
{
int i = 0;
isc_result_t result;
const char *zclass;
const char *zname;
const char *zfile = NULL;
const cfg_obj_t *maps[4];
const cfg_obj_t *mastersobj = NULL;
const cfg_obj_t *inviewobj = NULL;
const cfg_obj_t *zoptions = NULL;
const cfg_obj_t *classobj = NULL;
const cfg_obj_t *typeobj = NULL;
const cfg_obj_t *fileobj = NULL;
const cfg_obj_t *dlzobj = NULL;
const cfg_obj_t *dbobj = NULL;
const cfg_obj_t *obj = NULL;
const cfg_obj_t *fmtobj = NULL;
dns_masterformat_t masterformat;
dns_ttl_t maxttl = 0;
zone_options = DNS_ZONEOPT_CHECKNS | DNS_ZONEOPT_MANYERRORS;
zname = cfg_obj_asstring(cfg_tuple_get(zconfig, "name"));
classobj = cfg_tuple_get(zconfig, "class");
if (!cfg_obj_isstring(classobj))
zclass = vclass;
else
zclass = cfg_obj_asstring(classobj);
zoptions = cfg_tuple_get(zconfig, "options");
maps[i++] = zoptions;
if (vconfig != NULL)
maps[i++] = cfg_tuple_get(vconfig, "options");
if (config != NULL) {
cfg_map_get(config, "options", &obj);
if (obj != NULL)
maps[i++] = obj;
}
maps[i] = NULL;
cfg_map_get(zoptions, "in-view", &inviewobj);
if (inviewobj != NULL)
return (ISC_R_SUCCESS);
cfg_map_get(zoptions, "type", &typeobj);
if (typeobj == NULL)
return (ISC_R_FAILURE);
/*
* Skip checks when using an alternate data source.
*/
cfg_map_get(zoptions, "database", &dbobj);
if (dbobj != NULL &&
strcmp("rbt", cfg_obj_asstring(dbobj)) != 0 &&
strcmp("rbt64", cfg_obj_asstring(dbobj)) != 0)
return (ISC_R_SUCCESS);
cfg_map_get(zoptions, "dlz", &dlzobj);
if (dlzobj != NULL)
return (ISC_R_SUCCESS);
cfg_map_get(zoptions, "file", &fileobj);
if (fileobj != NULL)
zfile = cfg_obj_asstring(fileobj);
/*
* Check hints files for hint zones.
* Skip loading checks for any type other than
* master and redirect
*/
if (strcasecmp(cfg_obj_asstring(typeobj), "hint") == 0)
return (configure_hint(zfile, zclass, mctx));
else if ((strcasecmp(cfg_obj_asstring(typeobj), "master") != 0) &&
(strcasecmp(cfg_obj_asstring(typeobj), "redirect") != 0))
return (ISC_R_SUCCESS);
/*
* Is the redirect zone configured as a slave?
*/
if (strcasecmp(cfg_obj_asstring(typeobj), "redirect") == 0) {
cfg_map_get(zoptions, "masters", &mastersobj);
if (mastersobj != NULL)
return (ISC_R_SUCCESS);
}
if (zfile == NULL)
return (ISC_R_FAILURE);
obj = NULL;
if (get_maps(maps, "check-dup-records", &obj)) {
if (strcasecmp(cfg_obj_asstring(obj), "warn") == 0) {
zone_options |= DNS_ZONEOPT_CHECKDUPRR;
zone_options &= ~DNS_ZONEOPT_CHECKDUPRRFAIL;
} else if (strcasecmp(cfg_obj_asstring(obj), "fail") == 0) {
zone_options |= DNS_ZONEOPT_CHECKDUPRR;
zone_options |= DNS_ZONEOPT_CHECKDUPRRFAIL;
} else if (strcasecmp(cfg_obj_asstring(obj), "ignore") == 0) {
zone_options &= ~DNS_ZONEOPT_CHECKDUPRR;
zone_options &= ~DNS_ZONEOPT_CHECKDUPRRFAIL;
} else
INSIST(0);
} else {
zone_options |= DNS_ZONEOPT_CHECKDUPRR;
zone_options &= ~DNS_ZONEOPT_CHECKDUPRRFAIL;
}
obj = NULL;
if (get_maps(maps, "check-mx", &obj)) {
if (strcasecmp(cfg_obj_asstring(obj), "warn") == 0) {
zone_options |= DNS_ZONEOPT_CHECKMX;
zone_options &= ~DNS_ZONEOPT_CHECKMXFAIL;
} else if (strcasecmp(cfg_obj_asstring(obj), "fail") == 0) {
zone_options |= DNS_ZONEOPT_CHECKMX;
zone_options |= DNS_ZONEOPT_CHECKMXFAIL;
} else if (strcasecmp(cfg_obj_asstring(obj), "ignore") == 0) {
zone_options &= ~DNS_ZONEOPT_CHECKMX;
zone_options &= ~DNS_ZONEOPT_CHECKMXFAIL;
} else
INSIST(0);
} else {
zone_options |= DNS_ZONEOPT_CHECKMX;
zone_options &= ~DNS_ZONEOPT_CHECKMXFAIL;
}
obj = NULL;
if (get_maps(maps, "check-integrity", &obj)) {
if (cfg_obj_asboolean(obj))
zone_options |= DNS_ZONEOPT_CHECKINTEGRITY;
else
zone_options &= ~DNS_ZONEOPT_CHECKINTEGRITY;
} else
zone_options |= DNS_ZONEOPT_CHECKINTEGRITY;
obj = NULL;
if (get_maps(maps, "check-mx-cname", &obj)) {
if (strcasecmp(cfg_obj_asstring(obj), "warn") == 0) {
zone_options |= DNS_ZONEOPT_WARNMXCNAME;
zone_options &= ~DNS_ZONEOPT_IGNOREMXCNAME;
} else if (strcasecmp(cfg_obj_asstring(obj), "fail") == 0) {
zone_options &= ~DNS_ZONEOPT_WARNMXCNAME;
zone_options &= ~DNS_ZONEOPT_IGNOREMXCNAME;
} else if (strcasecmp(cfg_obj_asstring(obj), "ignore") == 0) {
zone_options |= DNS_ZONEOPT_WARNMXCNAME;
zone_options |= DNS_ZONEOPT_IGNOREMXCNAME;
} else
INSIST(0);
} else {
zone_options |= DNS_ZONEOPT_WARNMXCNAME;
zone_options &= ~DNS_ZONEOPT_IGNOREMXCNAME;
}
obj = NULL;
if (get_maps(maps, "check-srv-cname", &obj)) {
if (strcasecmp(cfg_obj_asstring(obj), "warn") == 0) {
zone_options |= DNS_ZONEOPT_WARNSRVCNAME;
zone_options &= ~DNS_ZONEOPT_IGNORESRVCNAME;
} else if (strcasecmp(cfg_obj_asstring(obj), "fail") == 0) {
zone_options &= ~DNS_ZONEOPT_WARNSRVCNAME;
zone_options &= ~DNS_ZONEOPT_IGNORESRVCNAME;
} else if (strcasecmp(cfg_obj_asstring(obj), "ignore") == 0) {
zone_options |= DNS_ZONEOPT_WARNSRVCNAME;
zone_options |= DNS_ZONEOPT_IGNORESRVCNAME;
} else
INSIST(0);
} else {
zone_options |= DNS_ZONEOPT_WARNSRVCNAME;
zone_options &= ~DNS_ZONEOPT_IGNORESRVCNAME;
}
obj = NULL;
if (get_maps(maps, "check-sibling", &obj)) {
if (cfg_obj_asboolean(obj))
zone_options |= DNS_ZONEOPT_CHECKSIBLING;
else
zone_options &= ~DNS_ZONEOPT_CHECKSIBLING;
}
obj = NULL;
if (get_maps(maps, "check-spf", &obj)) {
if (strcasecmp(cfg_obj_asstring(obj), "warn") == 0) {
zone_options |= DNS_ZONEOPT_CHECKSPF;
} else if (strcasecmp(cfg_obj_asstring(obj), "ignore") == 0) {
zone_options &= ~DNS_ZONEOPT_CHECKSPF;
} else
INSIST(0);
} else {
zone_options |= DNS_ZONEOPT_CHECKSPF;
}
obj = NULL;
if (get_checknames(maps, &obj)) {
if (strcasecmp(cfg_obj_asstring(obj), "warn") == 0) {
zone_options |= DNS_ZONEOPT_CHECKNAMES;
zone_options &= ~DNS_ZONEOPT_CHECKNAMESFAIL;
} else if (strcasecmp(cfg_obj_asstring(obj), "fail") == 0) {
zone_options |= DNS_ZONEOPT_CHECKNAMES;
zone_options |= DNS_ZONEOPT_CHECKNAMESFAIL;
} else if (strcasecmp(cfg_obj_asstring(obj), "ignore") == 0) {
zone_options &= ~DNS_ZONEOPT_CHECKNAMES;
zone_options &= ~DNS_ZONEOPT_CHECKNAMESFAIL;
} else
INSIST(0);
} else {
zone_options |= DNS_ZONEOPT_CHECKNAMES;
zone_options |= DNS_ZONEOPT_CHECKNAMESFAIL;
}
masterformat = dns_masterformat_text;
fmtobj = NULL;
if (get_maps(maps, "masterfile-format", &fmtobj)) {
const char *masterformatstr = cfg_obj_asstring(fmtobj);
if (strcasecmp(masterformatstr, "text") == 0)
masterformat = dns_masterformat_text;
else if (strcasecmp(masterformatstr, "raw") == 0)
masterformat = dns_masterformat_raw;
else if (strcasecmp(masterformatstr, "map") == 0)
masterformat = dns_masterformat_map;
else
INSIST(0);
}
obj = NULL;
if (get_maps(maps, "max-zone-ttl", &obj)) {
maxttl = cfg_obj_asuint32(obj);
zone_options2 |= DNS_ZONEOPT2_CHECKTTL;
}
result = load_zone(mctx, zname, zfile, masterformat,
zclass, maxttl, NULL);
if (result != ISC_R_SUCCESS)
fprintf(stderr, "%s/%s/%s: %s\n", view, zname, zclass,
dns_result_totext(result));
return (result);
}
/*%
* Set up a logging channel according to the named.conf data
* in 'cchan' and add it to 'logconfig'.
*/
static isc_result_t
channel_fromconf(const cfg_obj_t *channel, isc_logconfig_t *logconfig)
{
isc_result_t result;
isc_logdestination_t dest;
unsigned int type;
unsigned int flags = 0;
int level;
const char *channelname;
const cfg_obj_t *fileobj = NULL;
const cfg_obj_t *syslogobj = NULL;
const cfg_obj_t *nullobj = NULL;
const cfg_obj_t *stderrobj = NULL;
const cfg_obj_t *severity = NULL;
int i;
channelname = cfg_obj_asstring(cfg_map_getname(channel));
(void)cfg_map_get(channel, "file", &fileobj);
(void)cfg_map_get(channel, "syslog", &syslogobj);
(void)cfg_map_get(channel, "null", &nullobj);
(void)cfg_map_get(channel, "stderr", &stderrobj);
i = 0;
if (fileobj != NULL)
i++;
if (syslogobj != NULL)
i++;
if (nullobj != NULL)
i++;
if (stderrobj != NULL)
i++;
if (i != 1) {
cfg_obj_log(channel, ns_g_lctx, ISC_LOG_ERROR,
"channel '%s': exactly one of file, syslog, "
"null, and stderr must be present", channelname);
return (ISC_R_FAILURE);
}
type = ISC_LOG_TONULL;
if (fileobj != NULL) {
const cfg_obj_t *pathobj = cfg_tuple_get(fileobj, "file");
const cfg_obj_t *sizeobj = cfg_tuple_get(fileobj, "size");
const cfg_obj_t *versionsobj =
cfg_tuple_get(fileobj, "versions");
isc_int32_t versions = ISC_LOG_ROLLNEVER;
isc_offset_t size = 0;
type = ISC_LOG_TOFILE;
if (versionsobj != NULL && cfg_obj_isuint32(versionsobj))
versions = cfg_obj_asuint32(versionsobj);
if (versionsobj != NULL && cfg_obj_isstring(versionsobj) &&
strcasecmp(cfg_obj_asstring(versionsobj), "unlimited") == 0)
versions = ISC_LOG_ROLLINFINITE;
if (sizeobj != NULL &&
cfg_obj_isuint64(sizeobj) &&
cfg_obj_asuint64(sizeobj) < ISC_OFFSET_MAXIMUM)
size = (isc_offset_t)cfg_obj_asuint64(sizeobj);
dest.file.stream = NULL;
dest.file.name = cfg_obj_asstring(pathobj);
dest.file.versions = versions;
dest.file.maximum_size = size;
} else if (syslogobj != NULL) {
int facility = LOG_DAEMON;
type = ISC_LOG_TOSYSLOG;
if (cfg_obj_isstring(syslogobj)) {
const char *facilitystr = cfg_obj_asstring(syslogobj);
(void)isc_syslog_facilityfromstring(facilitystr,
&facility);
}
dest.facility = facility;
} else if (stderrobj != NULL) {
type = ISC_LOG_TOFILEDESC;
dest.file.stream = stderr;
dest.file.name = NULL;
dest.file.versions = ISC_LOG_ROLLNEVER;
dest.file.maximum_size = 0;
}
/*
* Munge flags.
*/
{
const cfg_obj_t *printcat = NULL;
const cfg_obj_t *printsev = NULL;
const cfg_obj_t *printtime = NULL;
const cfg_obj_t *buffered = NULL;
(void)cfg_map_get(channel, "print-category", &printcat);
(void)cfg_map_get(channel, "print-severity", &printsev);
(void)cfg_map_get(channel, "print-time", &printtime);
(void)cfg_map_get(channel, "buffered", &buffered);
if (printcat != NULL && cfg_obj_asboolean(printcat))
flags |= ISC_LOG_PRINTCATEGORY;
if (printtime != NULL && cfg_obj_asboolean(printtime))
flags |= ISC_LOG_PRINTTIME;
if (printsev != NULL && cfg_obj_asboolean(printsev))
flags |= ISC_LOG_PRINTLEVEL;
if (buffered != NULL && cfg_obj_asboolean(buffered))
flags |= ISC_LOG_BUFFERED;
}
level = ISC_LOG_INFO;
if (cfg_map_get(channel, "severity", &severity) == ISC_R_SUCCESS) {
if (cfg_obj_isstring(severity)) {
const char *str = cfg_obj_asstring(severity);
if (strcasecmp(str, "critical") == 0)
level = ISC_LOG_CRITICAL;
else if (strcasecmp(str, "error") == 0)
level = ISC_LOG_ERROR;
else if (strcasecmp(str, "warning") == 0)
level = ISC_LOG_WARNING;
else if (strcasecmp(str, "notice") == 0)
level = ISC_LOG_NOTICE;
else if (strcasecmp(str, "info") == 0)
level = ISC_LOG_INFO;
else if (strcasecmp(str, "dynamic") == 0)
level = ISC_LOG_DYNAMIC;
} else
/* debug */
level = cfg_obj_asuint32(severity);
}
if (logconfig == NULL)
result = ISC_R_SUCCESS;
else
result = isc_log_createchannel(logconfig, channelname,
type, level, &dest, flags);
if (result == ISC_R_SUCCESS && type == ISC_LOG_TOFILE) {
FILE *fp;
/*
* Test to make sure that file is a plain file.
* Fix defect #22771
*/
result = isc_file_isplainfile(dest.file.name);
if (result == ISC_R_SUCCESS || result == ISC_R_FILENOTFOUND) {
/*
* Test that the file can be opened, since
* isc_log_open() can't effectively report
* failures when called in isc_log_doit().
*/
result = isc_stdio_open(dest.file.name, "a", &fp);
if (result != ISC_R_SUCCESS) {
if (logconfig != NULL && !ns_g_nosyslog)
syslog(LOG_ERR,
"isc_stdio_open '%s' failed: "
"%s", dest.file.name,
isc_result_totext(result));
fprintf(stderr,
"isc_stdio_open '%s' failed: %s\n",
dest.file.name,
isc_result_totext(result));
} else
(void)isc_stdio_close(fp);
goto done;
}
if (logconfig != NULL && !ns_g_nosyslog)
syslog(LOG_ERR, "isc_file_isplainfile '%s' failed: %s",
dest.file.name, isc_result_totext(result));
fprintf(stderr, "isc_file_isplainfile '%s' failed: %s\n",
dest.file.name, isc_result_totext(result));
}
done:
return (result);
}
/*%
* Convenience function for configuring a single zone ACL.
*/
static isc_result_t
configure_zone_acl(const cfg_obj_t *zconfig, const cfg_obj_t *vconfig,
const cfg_obj_t *config, acl_type_t acltype,
cfg_aclconfctx_t *actx, dns_zone_t *zone,
void (*setzacl)(dns_zone_t *, dns_acl_t *),
void (*clearzacl)(dns_zone_t *))
{
isc_result_t result;
const cfg_obj_t *maps[5] = {NULL, NULL, NULL, NULL, NULL};
const cfg_obj_t *aclobj = NULL;
int i = 0;
dns_acl_t **aclp = NULL, *acl = NULL;
const char *aclname;
dns_view_t *view;
view = dns_zone_getview(zone);
switch (acltype) {
case allow_notify:
if (view != NULL)
aclp = &view->notifyacl;
aclname = "allow-notify";
break;
case allow_query:
if (view != NULL)
aclp = &view->queryacl;
aclname = "allow-query";
break;
case allow_transfer:
if (view != NULL)
aclp = &view->transferacl;
aclname = "allow-transfer";
break;
case allow_update:
if (view != NULL)
aclp = &view->updateacl;
aclname = "allow-update";
break;
case allow_update_forwarding:
if (view != NULL)
aclp = &view->upfwdacl;
aclname = "allow-update-forwarding";
break;
default:
INSIST(0);
return (ISC_R_FAILURE);
}
/* First check to see if ACL is defined within the zone */
if (zconfig != NULL) {
maps[0] = cfg_tuple_get(zconfig, "options");
(void)ns_config_get(maps, aclname, &aclobj);
if (aclobj != NULL) {
aclp = NULL;
goto parse_acl;
}
}
/* Failing that, see if there's a default ACL already in the view */
if (aclp != NULL && *aclp != NULL) {
(*setzacl)(zone, *aclp);
return (ISC_R_SUCCESS);
}
/* Check for default ACLs that haven't been parsed yet */
if (vconfig != NULL) {
const cfg_obj_t *options = cfg_tuple_get(vconfig, "options");
if (options != NULL)
maps[i++] = options;
}
if (config != NULL) {
const cfg_obj_t *options = NULL;
(void)cfg_map_get(config, "options", &options);
if (options != NULL)
maps[i++] = options;
}
maps[i++] = ns_g_defaults;
maps[i] = NULL;
(void)ns_config_get(maps, aclname, &aclobj);
if (aclobj == NULL) {
(*clearzacl)(zone);
return (ISC_R_SUCCESS);
}
parse_acl:
result = cfg_acl_fromconfig(aclobj, config, ns_g_lctx, actx,
dns_zone_getmctx(zone), 0, &acl);
if (result != ISC_R_SUCCESS)
return (result);
(*setzacl)(zone, acl);
/* Set the view default now */
if (aclp != NULL)
dns_acl_attach(acl, aclp);
dns_acl_detach(&acl);
return (ISC_R_SUCCESS);
}
static void
register_keys(const cfg_obj_t *control, const cfg_obj_t *keylist,
controlkeylist_t *keyids, isc_mem_t *mctx, const char *socktext)
{
controlkey_t *keyid, *next;
const cfg_obj_t *keydef;
char secret[1024];
isc_buffer_t b;
isc_result_t result;
/*
* Find the keys corresponding to the keyids used by this listener.
*/
for (keyid = ISC_LIST_HEAD(*keyids); keyid != NULL; keyid = next) {
next = ISC_LIST_NEXT(keyid, link);
result = cfgkeylist_find(keylist, keyid->keyname, &keydef);
if (result != ISC_R_SUCCESS) {
cfg_obj_log(control, ns_g_lctx, ISC_LOG_WARNING,
"couldn't find key '%s' for use with "
"command channel %s",
keyid->keyname, socktext);
ISC_LIST_UNLINK(*keyids, keyid, link);
free_controlkey(keyid, mctx);
} else {
const cfg_obj_t *algobj = NULL;
const cfg_obj_t *secretobj = NULL;
const char *algstr = NULL;
const char *secretstr = NULL;
unsigned int algtype;
(void)cfg_map_get(keydef, "algorithm", &algobj);
(void)cfg_map_get(keydef, "secret", &secretobj);
INSIST(algobj != NULL && secretobj != NULL);
algstr = cfg_obj_asstring(algobj);
secretstr = cfg_obj_asstring(secretobj);
if (ns_config_getkeyalgorithm2(algstr, NULL,
&algtype, NULL) != ISC_R_SUCCESS)
{
cfg_obj_log(control, ns_g_lctx,
ISC_LOG_WARNING,
"unsupported algorithm '%s' in "
"key '%s' for use with command "
"channel %s",
algstr, keyid->keyname, socktext);
ISC_LIST_UNLINK(*keyids, keyid, link);
free_controlkey(keyid, mctx);
continue;
}
keyid->algorithm = algtype;
isc_buffer_init(&b, secret, sizeof(secret));
result = isc_base64_decodestring(secretstr, &b);
if (result != ISC_R_SUCCESS) {
cfg_obj_log(keydef, ns_g_lctx, ISC_LOG_WARNING,
"secret for key '%s' on "
"command channel %s: %s",
keyid->keyname, socktext,
isc_result_totext(result));
ISC_LIST_UNLINK(*keyids, keyid, link);
free_controlkey(keyid, mctx);
continue;
}
keyid->secret.length = isc_buffer_usedlength(&b);
keyid->secret.base = isc_mem_get(mctx,
keyid->secret.length);
if (keyid->secret.base == NULL) {
cfg_obj_log(keydef, ns_g_lctx, ISC_LOG_WARNING,
"couldn't register key '%s': "
"out of memory", keyid->keyname);
ISC_LIST_UNLINK(*keyids, keyid, link);
free_controlkey(keyid, mctx);
break;
}
memmove(keyid->secret.base, isc_buffer_base(&b),
keyid->secret.length);
}
}
}
isc_result_t
ns_zone_configure(const cfg_obj_t *config, const cfg_obj_t *vconfig,
const cfg_obj_t *zconfig, cfg_aclconfctx_t *ac,
dns_zone_t *zone)
{
isc_result_t result;
const char *zname;
dns_rdataclass_t zclass;
dns_rdataclass_t vclass;
const cfg_obj_t *maps[5];
const cfg_obj_t *zoptions = NULL;
const cfg_obj_t *options = NULL;
const cfg_obj_t *obj;
const char *filename = NULL;
dns_notifytype_t notifytype = dns_notifytype_yes;
isc_sockaddr_t *addrs;
dns_name_t **keynames;
isc_uint32_t count;
char *cpval;
unsigned int dbargc;
char **dbargv;
static char default_dbtype[] = "rbt";
isc_mem_t *mctx = dns_zone_getmctx(zone);
dns_dialuptype_t dialup = dns_dialuptype_no;
dns_zonetype_t ztype;
int i;
isc_int32_t journal_size;
isc_boolean_t multi;
isc_boolean_t alt;
dns_view_t *view;
isc_boolean_t check = ISC_FALSE, fail = ISC_FALSE;
isc_boolean_t warn = ISC_FALSE, ignore = ISC_FALSE;
isc_boolean_t ixfrdiff;
dns_masterformat_t masterformat;
isc_stats_t *zoneqrystats;
isc_boolean_t zonestats_on;
int seconds;
i = 0;
if (zconfig != NULL) {
zoptions = cfg_tuple_get(zconfig, "options");
maps[i++] = zoptions;
}
if (vconfig != NULL)
maps[i++] = cfg_tuple_get(vconfig, "options");
if (config != NULL) {
(void)cfg_map_get(config, "options", &options);
if (options != NULL)
maps[i++] = options;
}
maps[i++] = ns_g_defaults;
maps[i] = NULL;
if (vconfig != NULL)
RETERR(ns_config_getclass(cfg_tuple_get(vconfig, "class"),
dns_rdataclass_in, &vclass));
else
vclass = dns_rdataclass_in;
/*
* Configure values common to all zone types.
*/
zname = cfg_obj_asstring(cfg_tuple_get(zconfig, "name"));
RETERR(ns_config_getclass(cfg_tuple_get(zconfig, "class"),
vclass, &zclass));
dns_zone_setclass(zone, zclass);
ztype = zonetype_fromconfig(zoptions);
dns_zone_settype(zone, ztype);
obj = NULL;
result = cfg_map_get(zoptions, "database", &obj);
if (result == ISC_R_SUCCESS)
cpval = isc_mem_strdup(mctx, cfg_obj_asstring(obj));
else
cpval = default_dbtype;
if (cpval == NULL)
return(ISC_R_NOMEMORY);
result = strtoargv(mctx, cpval, &dbargc, &dbargv);
if (result != ISC_R_SUCCESS && cpval != default_dbtype) {
isc_mem_free(mctx, cpval);
return (result);
}
/*
* ANSI C is strange here. There is no logical reason why (char **)
* cannot be promoted automatically to (const char * const *) by the
* compiler w/o generating a warning.
*/
result = dns_zone_setdbtype(zone, dbargc, (const char * const *)dbargv);
isc_mem_put(mctx, dbargv, dbargc * sizeof(*dbargv));
if (cpval != default_dbtype)
isc_mem_free(mctx, cpval);
if (result != ISC_R_SUCCESS)
return (result);
obj = NULL;
result = cfg_map_get(zoptions, "file", &obj);
if (result == ISC_R_SUCCESS)
filename = cfg_obj_asstring(obj);
/*
* Unless we're using some alternative database, a master zone
* will be needing a master file.
*/
if (ztype == dns_zone_master && cpval == default_dbtype &&
filename == NULL) {
isc_log_write(ns_g_lctx, NS_LOGCATEGORY_GENERAL,
NS_LOGMODULE_SERVER, ISC_LOG_ERROR,
"zone '%s': 'file' not specified",
zname);
return (ISC_R_FAILURE);
}
masterformat = dns_masterformat_text;
obj = NULL;
result= ns_config_get(maps, "masterfile-format", &obj);
if (result == ISC_R_SUCCESS) {
const char *masterformatstr = cfg_obj_asstring(obj);
if (strcasecmp(masterformatstr, "text") == 0)
masterformat = dns_masterformat_text;
else if (strcasecmp(masterformatstr, "raw") == 0)
masterformat = dns_masterformat_raw;
else
INSIST(0);
}
RETERR(dns_zone_setfile2(zone, filename, masterformat));
obj = NULL;
result = cfg_map_get(zoptions, "journal", &obj);
if (result == ISC_R_SUCCESS)
RETERR(dns_zone_setjournal(zone, cfg_obj_asstring(obj)));
if (ztype == dns_zone_slave)
RETERR(configure_zone_acl(zconfig, vconfig, config,
allow_notify, ac, zone,
dns_zone_setnotifyacl,
dns_zone_clearnotifyacl));
/*
* XXXAG This probably does not make sense for stubs.
*/
RETERR(configure_zone_acl(zconfig, vconfig, config,
allow_query, ac, zone,
dns_zone_setqueryacl,
dns_zone_clearqueryacl));
obj = NULL;
result = ns_config_get(maps, "dialup", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
if (cfg_obj_isboolean(obj)) {
if (cfg_obj_asboolean(obj))
dialup = dns_dialuptype_yes;
else
dialup = dns_dialuptype_no;
} else {
const char *dialupstr = cfg_obj_asstring(obj);
if (strcasecmp(dialupstr, "notify") == 0)
dialup = dns_dialuptype_notify;
else if (strcasecmp(dialupstr, "notify-passive") == 0)
dialup = dns_dialuptype_notifypassive;
else if (strcasecmp(dialupstr, "refresh") == 0)
dialup = dns_dialuptype_refresh;
else if (strcasecmp(dialupstr, "passive") == 0)
dialup = dns_dialuptype_passive;
else
INSIST(0);
}
dns_zone_setdialup(zone, dialup);
obj = NULL;
result = ns_config_get(maps, "zone-statistics", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
zonestats_on = cfg_obj_asboolean(obj);
zoneqrystats = NULL;
if (zonestats_on) {
RETERR(isc_stats_create(mctx, &zoneqrystats,
dns_nsstatscounter_max));
}
dns_zone_setrequeststats(zone, zoneqrystats);
if (zoneqrystats != NULL)
isc_stats_detach(&zoneqrystats);
/*
* Configure master functionality. This applies
* to primary masters (type "master") and slaves
* acting as masters (type "slave"), but not to stubs.
*/
if (ztype != dns_zone_stub && ztype != dns_zone_staticstub) {
obj = NULL;
result = ns_config_get(maps, "notify", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
if (cfg_obj_isboolean(obj)) {
if (cfg_obj_asboolean(obj))
notifytype = dns_notifytype_yes;
else
notifytype = dns_notifytype_no;
} else {
const char *notifystr = cfg_obj_asstring(obj);
if (strcasecmp(notifystr, "explicit") == 0)
notifytype = dns_notifytype_explicit;
else if (strcasecmp(notifystr, "master-only") == 0)
notifytype = dns_notifytype_masteronly;
else
INSIST(0);
}
dns_zone_setnotifytype(zone, notifytype);
obj = NULL;
result = ns_config_get(maps, "also-notify", &obj);
if (result == ISC_R_SUCCESS) {
isc_sockaddr_t *addrs = NULL;
isc_uint32_t addrcount;
result = ns_config_getiplist(config, obj, 0, mctx,
&addrs, &addrcount);
if (result != ISC_R_SUCCESS)
return (result);
result = dns_zone_setalsonotify(zone, addrs,
addrcount);
ns_config_putiplist(mctx, &addrs, addrcount);
if (result != ISC_R_SUCCESS)
return (result);
} else
RETERR(dns_zone_setalsonotify(zone, NULL, 0));
obj = NULL;
result = ns_config_get(maps, "notify-source", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
RETERR(dns_zone_setnotifysrc4(zone, cfg_obj_assockaddr(obj)));
ns_add_reserved_dispatch(ns_g_server, cfg_obj_assockaddr(obj));
obj = NULL;
result = ns_config_get(maps, "notify-source-v6", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
RETERR(dns_zone_setnotifysrc6(zone, cfg_obj_assockaddr(obj)));
ns_add_reserved_dispatch(ns_g_server, cfg_obj_assockaddr(obj));
obj = NULL;
result = ns_config_get(maps, "notify-to-soa", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
dns_zone_setoption(zone, DNS_ZONEOPT_NOTIFYTOSOA,
cfg_obj_asboolean(obj));
dns_zone_setisself(zone, ns_client_isself, NULL);
RETERR(configure_zone_acl(zconfig, vconfig, config,
allow_transfer, ac, zone,
dns_zone_setxfracl,
dns_zone_clearxfracl));
obj = NULL;
result = ns_config_get(maps, "max-transfer-time-out", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
dns_zone_setmaxxfrout(zone, cfg_obj_asuint32(obj) * 60);
obj = NULL;
result = ns_config_get(maps, "max-transfer-idle-out", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
dns_zone_setidleout(zone, cfg_obj_asuint32(obj) * 60);
obj = NULL;
result = ns_config_get(maps, "max-journal-size", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
dns_zone_setjournalsize(zone, -1);
if (cfg_obj_isstring(obj)) {
const char *str = cfg_obj_asstring(obj);
INSIST(strcasecmp(str, "unlimited") == 0);
journal_size = ISC_UINT32_MAX / 2;
} else {
isc_resourcevalue_t value;
value = cfg_obj_asuint64(obj);
if (value > ISC_UINT32_MAX / 2) {
cfg_obj_log(obj, ns_g_lctx,
ISC_LOG_ERROR,
"'max-journal-size "
"%" ISC_PRINT_QUADFORMAT "d' "
"is too large",
value);
RETERR(ISC_R_RANGE);
}
journal_size = (isc_uint32_t)value;
}
dns_zone_setjournalsize(zone, journal_size);
obj = NULL;
result = ns_config_get(maps, "ixfr-from-differences", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
if (cfg_obj_isboolean(obj))
ixfrdiff = cfg_obj_asboolean(obj);
else if (!strcasecmp(cfg_obj_asstring(obj), "master") &&
ztype == dns_zone_master)
ixfrdiff = ISC_TRUE;
else if (!strcasecmp(cfg_obj_asstring(obj), "slave") &&
ztype == dns_zone_slave)
ixfrdiff = ISC_TRUE;
else
ixfrdiff = ISC_FALSE;
dns_zone_setoption(zone, DNS_ZONEOPT_IXFRFROMDIFFS, ixfrdiff);
checknames(ztype, maps, &obj);
INSIST(obj != NULL);
if (strcasecmp(cfg_obj_asstring(obj), "warn") == 0) {
fail = ISC_FALSE;
check = ISC_TRUE;
} else if (strcasecmp(cfg_obj_asstring(obj), "fail") == 0) {
fail = check = ISC_TRUE;
} else if (strcasecmp(cfg_obj_asstring(obj), "ignore") == 0) {
fail = check = ISC_FALSE;
} else
INSIST(0);
dns_zone_setoption(zone, DNS_ZONEOPT_CHECKNAMES, check);
dns_zone_setoption(zone, DNS_ZONEOPT_CHECKNAMESFAIL, fail);
obj = NULL;
result = ns_config_get(maps, "notify-delay", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
dns_zone_setnotifydelay(zone, cfg_obj_asuint32(obj));
obj = NULL;
result = ns_config_get(maps, "check-sibling", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
dns_zone_setoption(zone, DNS_ZONEOPT_CHECKSIBLING,
cfg_obj_asboolean(obj));
obj = NULL;
result = ns_config_get(maps, "zero-no-soa-ttl", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
dns_zone_setzeronosoattl(zone, cfg_obj_asboolean(obj));
obj = NULL;
result = ns_config_get(maps, "nsec3-test-zone", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
dns_zone_setoption(zone, DNS_ZONEOPT_NSEC3TESTZONE,
cfg_obj_asboolean(obj));
}
/*
* Configure update-related options. These apply to
* primary masters only.
*/
if (ztype == dns_zone_master) {
dns_acl_t *updateacl;
RETERR(configure_zone_acl(zconfig, vconfig, config,
allow_update, ac, zone,
dns_zone_setupdateacl,
dns_zone_clearupdateacl));
updateacl = dns_zone_getupdateacl(zone);
if (updateacl != NULL && dns_acl_isinsecure(updateacl))
isc_log_write(ns_g_lctx, DNS_LOGCATEGORY_SECURITY,
NS_LOGMODULE_SERVER, ISC_LOG_WARNING,
"zone '%s' allows updates by IP "
"address, which is insecure",
zname);
RETERR(configure_zone_ssutable(zoptions, zone, zname));
obj = NULL;
result = ns_config_get(maps, "sig-validity-interval", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
{
const cfg_obj_t *validity, *resign;
validity = cfg_tuple_get(obj, "validity");
seconds = cfg_obj_asuint32(validity) * 86400;
dns_zone_setsigvalidityinterval(zone, seconds);
resign = cfg_tuple_get(obj, "re-sign");
if (cfg_obj_isvoid(resign)) {
seconds /= 4;
} else {
if (seconds > 7 * 86400)
seconds = cfg_obj_asuint32(resign) *
86400;
else
seconds = cfg_obj_asuint32(resign) *
3600;
}
dns_zone_setsigresigninginterval(zone, seconds);
}
obj = NULL;
result = ns_config_get(maps, "key-directory", &obj);
if (result == ISC_R_SUCCESS) {
filename = cfg_obj_asstring(obj);
RETERR(dns_zone_setkeydirectory(zone, filename));
}
obj = NULL;
result = ns_config_get(maps, "sig-signing-signatures", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
dns_zone_setsignatures(zone, cfg_obj_asuint32(obj));
obj = NULL;
result = ns_config_get(maps, "sig-signing-nodes", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
dns_zone_setnodes(zone, cfg_obj_asuint32(obj));
obj = NULL;
result = ns_config_get(maps, "sig-signing-type", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
dns_zone_setprivatetype(zone, cfg_obj_asuint32(obj));
obj = NULL;
result = ns_config_get(maps, "update-check-ksk", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
dns_zone_setoption(zone, DNS_ZONEOPT_UPDATECHECKKSK,
cfg_obj_asboolean(obj));
obj = NULL;
result = ns_config_get(maps, "dnssec-dnskey-kskonly", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
dns_zone_setoption(zone, DNS_ZONEOPT_DNSKEYKSKONLY,
cfg_obj_asboolean(obj));
} else if (ztype == dns_zone_slave) {
RETERR(configure_zone_acl(zconfig, vconfig, config,
allow_update_forwarding, ac, zone,
dns_zone_setforwardacl,
dns_zone_clearforwardacl));
}
/*%
* Primary master functionality.
*/
if (ztype == dns_zone_master) {
isc_boolean_t allow = ISC_FALSE, maint = ISC_FALSE;
obj = NULL;
result = ns_config_get(maps, "check-wildcard", &obj);
if (result == ISC_R_SUCCESS)
check = cfg_obj_asboolean(obj);
else
check = ISC_FALSE;
dns_zone_setoption(zone, DNS_ZONEOPT_CHECKWILDCARD, check);
obj = NULL;
result = ns_config_get(maps, "check-dup-records", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
if (strcasecmp(cfg_obj_asstring(obj), "warn") == 0) {
fail = ISC_FALSE;
check = ISC_TRUE;
} else if (strcasecmp(cfg_obj_asstring(obj), "fail") == 0) {
fail = check = ISC_TRUE;
} else if (strcasecmp(cfg_obj_asstring(obj), "ignore") == 0) {
fail = check = ISC_FALSE;
} else
INSIST(0);
dns_zone_setoption(zone, DNS_ZONEOPT_CHECKDUPRR, check);
dns_zone_setoption(zone, DNS_ZONEOPT_CHECKDUPRRFAIL, fail);
obj = NULL;
result = ns_config_get(maps, "check-mx", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
if (strcasecmp(cfg_obj_asstring(obj), "warn") == 0) {
fail = ISC_FALSE;
check = ISC_TRUE;
} else if (strcasecmp(cfg_obj_asstring(obj), "fail") == 0) {
fail = check = ISC_TRUE;
} else if (strcasecmp(cfg_obj_asstring(obj), "ignore") == 0) {
fail = check = ISC_FALSE;
} else
INSIST(0);
dns_zone_setoption(zone, DNS_ZONEOPT_CHECKMX, check);
dns_zone_setoption(zone, DNS_ZONEOPT_CHECKMXFAIL, fail);
obj = NULL;
result = ns_config_get(maps, "check-integrity", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
dns_zone_setoption(zone, DNS_ZONEOPT_CHECKINTEGRITY,
cfg_obj_asboolean(obj));
obj = NULL;
result = ns_config_get(maps, "check-mx-cname", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
if (strcasecmp(cfg_obj_asstring(obj), "warn") == 0) {
warn = ISC_TRUE;
ignore = ISC_FALSE;
} else if (strcasecmp(cfg_obj_asstring(obj), "fail") == 0) {
warn = ignore = ISC_FALSE;
} else if (strcasecmp(cfg_obj_asstring(obj), "ignore") == 0) {
warn = ignore = ISC_TRUE;
} else
INSIST(0);
dns_zone_setoption(zone, DNS_ZONEOPT_WARNMXCNAME, warn);
dns_zone_setoption(zone, DNS_ZONEOPT_IGNOREMXCNAME, ignore);
obj = NULL;
result = ns_config_get(maps, "check-srv-cname", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
if (strcasecmp(cfg_obj_asstring(obj), "warn") == 0) {
warn = ISC_TRUE;
ignore = ISC_FALSE;
} else if (strcasecmp(cfg_obj_asstring(obj), "fail") == 0) {
warn = ignore = ISC_FALSE;
} else if (strcasecmp(cfg_obj_asstring(obj), "ignore") == 0) {
warn = ignore = ISC_TRUE;
} else
INSIST(0);
dns_zone_setoption(zone, DNS_ZONEOPT_WARNSRVCNAME, warn);
dns_zone_setoption(zone, DNS_ZONEOPT_IGNORESRVCNAME, ignore);
obj = NULL;
result = ns_config_get(maps, "dnssec-secure-to-insecure", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
dns_zone_setoption(zone, DNS_ZONEOPT_SECURETOINSECURE,
cfg_obj_asboolean(obj));
obj = NULL;
result = cfg_map_get(zoptions, "auto-dnssec", &obj);
if (result == ISC_R_SUCCESS) {
const char *arg = cfg_obj_asstring(obj);
if (strcasecmp(arg, "allow") == 0)
allow = ISC_TRUE;
else if (strcasecmp(arg, "maintain") == 0)
allow = maint = ISC_TRUE;
else if (strcasecmp(arg, "off") == 0)
;
else
INSIST(0);
dns_zone_setkeyopt(zone, DNS_ZONEKEY_ALLOW, allow);
dns_zone_setkeyopt(zone, DNS_ZONEKEY_MAINTAIN, maint);
}
}
/*
* Configure slave functionality.
*/
switch (ztype) {
case dns_zone_slave:
case dns_zone_stub:
count = 0;
obj = NULL;
(void)cfg_map_get(zoptions, "masters", &obj);
if (obj != NULL) {
addrs = NULL;
keynames = NULL;
RETERR(ns_config_getipandkeylist(config, obj, mctx,
&addrs, &keynames,
&count));
result = dns_zone_setmasterswithkeys(zone, addrs,
keynames, count);
ns_config_putipandkeylist(mctx, &addrs, &keynames,
count);
} else
result = dns_zone_setmasters(zone, NULL, 0);
RETERR(result);
multi = ISC_FALSE;
if (count > 1) {
obj = NULL;
result = ns_config_get(maps, "multi-master", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
multi = cfg_obj_asboolean(obj);
}
dns_zone_setoption(zone, DNS_ZONEOPT_MULTIMASTER, multi);
obj = NULL;
result = ns_config_get(maps, "max-transfer-time-in", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
dns_zone_setmaxxfrin(zone, cfg_obj_asuint32(obj) * 60);
obj = NULL;
result = ns_config_get(maps, "max-transfer-idle-in", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
dns_zone_setidlein(zone, cfg_obj_asuint32(obj) * 60);
obj = NULL;
result = ns_config_get(maps, "max-refresh-time", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
dns_zone_setmaxrefreshtime(zone, cfg_obj_asuint32(obj));
obj = NULL;
result = ns_config_get(maps, "min-refresh-time", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
dns_zone_setminrefreshtime(zone, cfg_obj_asuint32(obj));
obj = NULL;
result = ns_config_get(maps, "max-retry-time", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
dns_zone_setmaxretrytime(zone, cfg_obj_asuint32(obj));
obj = NULL;
result = ns_config_get(maps, "min-retry-time", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
dns_zone_setminretrytime(zone, cfg_obj_asuint32(obj));
obj = NULL;
result = ns_config_get(maps, "transfer-source", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
RETERR(dns_zone_setxfrsource4(zone, cfg_obj_assockaddr(obj)));
ns_add_reserved_dispatch(ns_g_server, cfg_obj_assockaddr(obj));
obj = NULL;
result = ns_config_get(maps, "transfer-source-v6", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
RETERR(dns_zone_setxfrsource6(zone, cfg_obj_assockaddr(obj)));
ns_add_reserved_dispatch(ns_g_server, cfg_obj_assockaddr(obj));
obj = NULL;
result = ns_config_get(maps, "alt-transfer-source", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
RETERR(dns_zone_setaltxfrsource4(zone, cfg_obj_assockaddr(obj)));
obj = NULL;
result = ns_config_get(maps, "alt-transfer-source-v6", &obj);
INSIST(result == ISC_R_SUCCESS && obj != NULL);
RETERR(dns_zone_setaltxfrsource6(zone, cfg_obj_assockaddr(obj)));
obj = NULL;
(void)ns_config_get(maps, "use-alt-transfer-source", &obj);
if (obj == NULL) {
/*
* Default off when views are in use otherwise
* on for BIND 8 compatibility.
*/
view = dns_zone_getview(zone);
if (view != NULL && strcmp(view->name, "_default") == 0)
alt = ISC_TRUE;
else
alt = ISC_FALSE;
} else
alt = cfg_obj_asboolean(obj);
dns_zone_setoption(zone, DNS_ZONEOPT_USEALTXFRSRC, alt);
obj = NULL;
(void)ns_config_get(maps, "try-tcp-refresh", &obj);
dns_zone_setoption(zone, DNS_ZONEOPT_TRYTCPREFRESH,
cfg_obj_asboolean(obj));
break;
case dns_zone_staticstub:
RETERR(configure_staticstub(zoptions, zone, zname,
default_dbtype));
break;
default:
break;
}
return (ISC_R_SUCCESS);
}
static void
parse_config(isc_mem_t *mctx, isc_log_t *log, const char *keyname,
cfg_parser_t **pctxp, cfg_obj_t **configp)
{
isc_result_t result;
const char *conffile = admin_conffile;
const cfg_obj_t *addresses = NULL;
const cfg_obj_t *defkey = NULL;
const cfg_obj_t *options = NULL;
const cfg_obj_t *servers = NULL;
const cfg_obj_t *server = NULL;
const cfg_obj_t *keys = NULL;
const cfg_obj_t *key = NULL;
const cfg_obj_t *defport = NULL;
const cfg_obj_t *secretobj = NULL;
const cfg_obj_t *algorithmobj = NULL;
cfg_obj_t *config = NULL;
const cfg_obj_t *address = NULL;
const cfg_listelt_t *elt;
const char *secretstr;
const char *algorithm;
static char secretarray[1024];
const cfg_type_t *conftype = &cfg_type_rndcconf;
isc_boolean_t key_only = ISC_FALSE;
const cfg_listelt_t *element;
if (! isc_file_exists(conffile)) {
conffile = admin_keyfile;
conftype = &cfg_type_rndckey;
if (! isc_file_exists(conffile))
fatal("neither %s nor %s was found",
admin_conffile, admin_keyfile);
key_only = ISC_TRUE;
}
DO("create parser", cfg_parser_create(mctx, log, pctxp));
/*
* The parser will output its own errors, so DO() is not used.
*/
result = cfg_parse_file(*pctxp, conffile, conftype, &config);
if (result != ISC_R_SUCCESS)
fatal("could not load rndc configuration");
if (!key_only)
(void)cfg_map_get(config, "options", &options);
if (key_only && servername == NULL)
servername = "127.0.0.1";
else if (servername == NULL && options != NULL) {
const cfg_obj_t *defserverobj = NULL;
(void)cfg_map_get(options, "default-server", &defserverobj);
if (defserverobj != NULL)
servername = cfg_obj_asstring(defserverobj);
}
if (servername == NULL)
fatal("no server specified and no default");
if (!key_only) {
(void)cfg_map_get(config, "server", &servers);
if (servers != NULL) {
for (elt = cfg_list_first(servers);
elt != NULL;
elt = cfg_list_next(elt))
{
const char *name;
server = cfg_listelt_value(elt);
name = cfg_obj_asstring(cfg_map_getname(server));
if (strcasecmp(name, servername) == 0)
break;
server = NULL;
}
}
}
/*
* Look for the name of the key to use.
*/
if (keyname != NULL)
; /* Was set on command line, do nothing. */
else if (server != NULL) {
DO("get key for server", cfg_map_get(server, "key", &defkey));
keyname = cfg_obj_asstring(defkey);
} else if (options != NULL) {
DO("get default key", cfg_map_get(options, "default-key",
&defkey));
keyname = cfg_obj_asstring(defkey);
} else if (!key_only)
fatal("no key for server and no default");
/*
* Get the key's definition.
*/
if (key_only)
DO("get key", cfg_map_get(config, "key", &key));
else {
DO("get config key list", cfg_map_get(config, "key", &keys));
for (elt = cfg_list_first(keys);
elt != NULL;
elt = cfg_list_next(elt))
{
key = cfg_listelt_value(elt);
if (strcasecmp(cfg_obj_asstring(cfg_map_getname(key)),
keyname) == 0)
break;
}
if (elt == NULL)
fatal("no key definition for name %s", keyname);
}
(void)cfg_map_get(key, "secret", &secretobj);
(void)cfg_map_get(key, "algorithm", &algorithmobj);
if (secretobj == NULL || algorithmobj == NULL)
fatal("key must have algorithm and secret");
secretstr = cfg_obj_asstring(secretobj);
algorithm = cfg_obj_asstring(algorithmobj);
if (strcasecmp(algorithm, "hmac-md5") != 0)
fatal("unsupported algorithm: %s", algorithm);
secret.rstart = (unsigned char *)secretarray;
secret.rend = (unsigned char *)secretarray + sizeof(secretarray);
DO("decode base64 secret", isccc_base64_decode(secretstr, &secret));
secret.rend = secret.rstart;
secret.rstart = (unsigned char *)secretarray;
/*
* Find the port to connect to.
*/
if (remoteport != 0)
; /* Was set on command line, do nothing. */
else {
if (server != NULL)
(void)cfg_map_get(server, "port", &defport);
if (defport == NULL && options != NULL)
(void)cfg_map_get(options, "default-port", &defport);
}
if (defport != NULL) {
remoteport = cfg_obj_asuint32(defport);
if (remoteport > 65535 || remoteport == 0)
fatal("port %u out of range", remoteport);
} else if (remoteport == 0)
remoteport = NS_CONTROL_PORT;
if (server != NULL)
result = cfg_map_get(server, "addresses", &addresses);
else
result = ISC_R_NOTFOUND;
if (result == ISC_R_SUCCESS) {
for (element = cfg_list_first(addresses);
element != NULL;
element = cfg_list_next(element))
{
isc_sockaddr_t sa;
address = cfg_listelt_value(element);
if (!cfg_obj_issockaddr(address)) {
unsigned int myport;
const char *name;
const cfg_obj_t *obj;
obj = cfg_tuple_get(address, "name");
name = cfg_obj_asstring(obj);
obj = cfg_tuple_get(address, "port");
if (cfg_obj_isuint32(obj)) {
myport = cfg_obj_asuint32(obj);
if (myport > ISC_UINT16_MAX ||
myport == 0)
fatal("port %u out of range",
myport);
} else
myport = remoteport;
if (nserveraddrs < SERVERADDRS)
get_addresses(name, (in_port_t) myport);
else
fprintf(stderr, "too many address: "
"%s: dropped\n", name);
continue;
}
sa = *cfg_obj_assockaddr(address);
if (isc_sockaddr_getport(&sa) == 0)
isc_sockaddr_setport(&sa, remoteport);
if (nserveraddrs < SERVERADDRS)
serveraddrs[nserveraddrs++] = sa;
else {
char socktext[ISC_SOCKADDR_FORMATSIZE];
isc_sockaddr_format(&sa, socktext,
sizeof(socktext));
fprintf(stderr,
"too many address: %s: dropped\n",
socktext);
}
}
}
if (!local4set && server != NULL) {
address = NULL;
cfg_map_get(server, "source-address", &address);
if (address != NULL) {
local4 = *cfg_obj_assockaddr(address);
local4set = ISC_TRUE;
}
}
if (!local4set && options != NULL) {
address = NULL;
cfg_map_get(options, "default-source-address", &address);
if (address != NULL) {
local4 = *cfg_obj_assockaddr(address);
local4set = ISC_TRUE;
}
}
if (!local6set && server != NULL) {
address = NULL;
cfg_map_get(server, "source-address-v6", &address);
if (address != NULL) {
local6 = *cfg_obj_assockaddr(address);
local6set = ISC_TRUE;
}
}
if (!local6set && options != NULL) {
address = NULL;
cfg_map_get(options, "default-source-address-v6", &address);
if (address != NULL) {
local6 = *cfg_obj_assockaddr(address);
local6set = ISC_TRUE;
}
}
*configp = config;
}
static void
parse_config(isc_mem_t *mctx, isc_log_t *log, const char *keyname,
cfg_parser_t **pctxp, cfg_obj_t **configp)
{
isc_result_t result;
const char *conffile = admin_conffile;
cfg_obj_t *defkey = NULL;
cfg_obj_t *options = NULL;
cfg_obj_t *servers = NULL;
cfg_obj_t *server = NULL;
cfg_obj_t *keys = NULL;
cfg_obj_t *key = NULL;
cfg_obj_t *defport = NULL;
cfg_obj_t *secretobj = NULL;
cfg_obj_t *algorithmobj = NULL;
cfg_obj_t *config = NULL;
cfg_listelt_t *elt;
const char *secretstr;
const char *algorithm;
static char secretarray[1024];
const cfg_type_t *conftype = &cfg_type_rndcconf;
isc_boolean_t key_only = ISC_FALSE;
if (! isc_file_exists(conffile)) {
conffile = admin_keyfile;
conftype = &cfg_type_rndckey;
if (! isc_file_exists(conffile))
fatal("neither %s nor %s was found",
admin_conffile, admin_keyfile);
key_only = ISC_TRUE;
}
DO("create parser", cfg_parser_create(mctx, log, pctxp));
/*
* The parser will output its own errors, so DO() is not used.
*/
result = cfg_parse_file(*pctxp, conffile, conftype, &config);
if (result != ISC_R_SUCCESS)
fatal("could not load rndc configuration");
if (!key_only)
(void)cfg_map_get(config, "options", &options);
if (key_only && servername == NULL)
servername = "127.0.0.1";
else if (servername == NULL && options != NULL) {
cfg_obj_t *defserverobj = NULL;
(void)cfg_map_get(options, "default-server", &defserverobj);
if (defserverobj != NULL)
servername = cfg_obj_asstring(defserverobj);
}
if (servername == NULL)
fatal("no server specified and no default");
if (!key_only) {
(void)cfg_map_get(config, "server", &servers);
if (servers != NULL) {
for (elt = cfg_list_first(servers);
elt != NULL;
elt = cfg_list_next(elt))
{
const char *name;
server = cfg_listelt_value(elt);
name = cfg_obj_asstring(cfg_map_getname(server));
if (strcasecmp(name, servername) == 0)
break;
server = NULL;
}
}
}
/*
* Look for the name of the key to use.
*/
if (keyname != NULL)
; /* Was set on command line, do nothing. */
else if (server != NULL) {
DO("get key for server", cfg_map_get(server, "key", &defkey));
keyname = cfg_obj_asstring(defkey);
} else if (options != NULL) {
DO("get default key", cfg_map_get(options, "default-key",
&defkey));
keyname = cfg_obj_asstring(defkey);
} else if (!key_only)
fatal("no key for server and no default");
/*
* Get the key's definition.
*/
if (key_only)
DO("get key", cfg_map_get(config, "key", &key));
else {
DO("get config key list", cfg_map_get(config, "key", &keys));
for (elt = cfg_list_first(keys);
elt != NULL;
elt = cfg_list_next(elt))
{
key = cfg_listelt_value(elt);
if (strcasecmp(cfg_obj_asstring(cfg_map_getname(key)),
keyname) == 0)
break;
}
if (elt == NULL)
fatal("no key definition for name %s", keyname);
}
(void)cfg_map_get(key, "secret", &secretobj);
(void)cfg_map_get(key, "algorithm", &algorithmobj);
if (secretobj == NULL || algorithmobj == NULL)
fatal("key must have algorithm and secret");
secretstr = cfg_obj_asstring(secretobj);
algorithm = cfg_obj_asstring(algorithmobj);
if (strcasecmp(algorithm, "hmac-md5") != 0)
fatal("unsupported algorithm: %s", algorithm);
secret.rstart = (unsigned char *)secretarray;
secret.rend = (unsigned char *)secretarray + sizeof(secretarray);
DO("decode base64 secret", isccc_base64_decode(secretstr, &secret));
secret.rend = secret.rstart;
secret.rstart = (unsigned char *)secretarray;
/*
* Find the port to connect to.
*/
if (remoteport != 0)
; /* Was set on command line, do nothing. */
else {
if (server != NULL)
(void)cfg_map_get(server, "port", &defport);
if (defport == NULL && options != NULL)
(void)cfg_map_get(options, "default-port", &defport);
}
if (defport != NULL) {
remoteport = cfg_obj_asuint32(defport);
if (remoteport > 65535 || remoteport == 0)
fatal("port %d out of range", remoteport);
} else if (remoteport == 0)
remoteport = NS_CONTROL_PORT;
*configp = config;
}
isc_result_t
ns_lwresd_configure(isc_mem_t *mctx, const cfg_obj_t *config) {
const cfg_obj_t *lwreslist = NULL;
const cfg_obj_t *lwres = NULL;
const cfg_obj_t *listenerslist = NULL;
const cfg_listelt_t *element = NULL;
ns_lwreslistener_t *listener;
ns_lwreslistenerlist_t newlisteners;
isc_result_t result;
char socktext[ISC_SOCKADDR_FORMATSIZE];
isc_sockaddr_t *addrs = NULL;
ns_lwresd_t *lwresd = NULL;
isc_uint32_t count = 0;
REQUIRE(mctx != NULL);
REQUIRE(config != NULL);
RUNTIME_CHECK(isc_once_do(&once, initialize_mutex) == ISC_R_SUCCESS);
ISC_LIST_INIT(newlisteners);
result = cfg_map_get(config, "lwres", &lwreslist);
if (result != ISC_R_SUCCESS)
return (ISC_R_SUCCESS);
LOCK(&listeners_lock);
/*
* Run through the new lwres address list, noting sockets that
* are already being listened on and moving them to the new list.
*
* Identifying duplicates addr/port combinations is left to either
* the underlying config code, or to the bind attempt getting an
* address-in-use error.
*/
for (element = cfg_list_first(lwreslist);
element != NULL;
element = cfg_list_next(element))
{
in_port_t port;
lwres = cfg_listelt_value(element);
CHECK(ns_lwdmanager_create(mctx, lwres, &lwresd));
port = lwresd_g_listenport;
if (port == 0)
port = LWRES_UDP_PORT;
listenerslist = NULL;
(void)cfg_map_get(lwres, "listen-on", &listenerslist);
if (listenerslist == NULL) {
struct in_addr localhost;
isc_sockaddr_t address;
localhost.s_addr = htonl(INADDR_LOOPBACK);
isc_sockaddr_fromin(&address, &localhost, port);
CHECK(configure_listener(&address, lwresd, mctx,
&newlisteners));
} else {
isc_uint32_t i;
CHECK(ns_config_getiplist(config, listenerslist,
port, mctx, &addrs, &count));
for (i = 0; i < count; i++)
CHECK(configure_listener(&addrs[i], lwresd,
mctx, &newlisteners));
ns_config_putiplist(mctx, &addrs, count);
}
ns_lwdmanager_detach(&lwresd);
}
/*
* Shutdown everything on the listeners list, and remove them from
* the list. Then put all of the new listeners on it.
*/
while (!ISC_LIST_EMPTY(listeners)) {
listener = ISC_LIST_HEAD(listeners);
ISC_LIST_UNLINK(listeners, listener, link);
isc_sockaddr_format(&listener->address,
socktext, sizeof(socktext));
listener_shutdown(listener);
ns_lwreslistener_detach(&listener);
isc_log_write(ns_g_lctx, ISC_LOGCATEGORY_GENERAL,
NS_LOGMODULE_LWRESD, ISC_LOG_NOTICE,
"lwres no longer listening on %s", socktext);
}
cleanup:
ISC_LIST_APPENDLIST(listeners, newlisteners, link);
if (addrs != NULL)
ns_config_putiplist(mctx, &addrs, count);
if (lwresd != NULL)
ns_lwdmanager_detach(&lwresd);
UNLOCK(&listeners_lock);
return (result);
}
static isc_result_t
setup_dnsseckeys(dns_client_t *client) {
isc_result_t result;
cfg_parser_t *parser = NULL;
const cfg_obj_t *keys = NULL;
const cfg_obj_t *managed_keys = NULL;
cfg_obj_t *bindkeys = NULL;
const char *filename = anchorfile;
if (!root_validation && !dlv_validation)
return (ISC_R_SUCCESS);
if (filename == NULL) {
#ifndef WIN32
filename = NS_SYSCONFDIR "/bind.keys";
#else
static char buf[MAX_PATH];
strlcpy(buf, isc_ntpaths_get(SYS_CONF_DIR), sizeof(buf));
strlcat(buf, "\\bind.keys", sizeof(buf));
filename = buf;
#endif
}
if (trust_anchor == NULL) {
trust_anchor = isc_mem_strdup(mctx, ".");
if (trust_anchor == NULL)
fatal("out of memory");
}
if (trust_anchor != NULL)
CHECK(convert_name(&afn, &anchor_name, trust_anchor));
if (dlv_anchor != NULL)
CHECK(convert_name(&dfn, &dlv_name, dlv_anchor));
CHECK(cfg_parser_create(mctx, dns_lctx, &parser));
if (access(filename, R_OK) != 0) {
if (anchorfile != NULL)
fatal("Unable to read key file '%s'", anchorfile);
} else {
result = cfg_parse_file(parser, filename,
&cfg_type_bindkeys, &bindkeys);
if (result != ISC_R_SUCCESS)
if (anchorfile != NULL)
fatal("Unable to load keys from '%s'",
anchorfile);
}
if (bindkeys == NULL) {
isc_buffer_t b;
isc_buffer_init(&b, anchortext, sizeof(anchortext) - 1);
isc_buffer_add(&b, sizeof(anchortext) - 1);
result = cfg_parse_buffer(parser, &b, &cfg_type_bindkeys,
&bindkeys);
if (result != ISC_R_SUCCESS)
fatal("Unable to parse built-in keys");
}
INSIST(bindkeys != NULL);
cfg_map_get(bindkeys, "trusted-keys", &keys);
cfg_map_get(bindkeys, "managed-keys", &managed_keys);
if (keys != NULL)
CHECK(load_keys(keys, client));
if (managed_keys != NULL)
CHECK(load_keys(managed_keys, client));
result = ISC_R_SUCCESS;
if (trusted_keys == 0)
fatal("No trusted keys were loaded");
if (dlv_validation)
dns_client_setdlv(client, dns_rdataclass_in, dlv_anchor);
cleanup:
if (result != ISC_R_SUCCESS)
delv_log(ISC_LOG_ERROR, "setup_dnsseckeys: %s",
isc_result_totext(result));
return (result);
}
