d4ef65050feac78554addf6e16a06c6e2e0bd331Brian Wellington

d4ef65050feac78554addf6e16a06c6e2e0bd331Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington#include <config.h>

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington#include <isc/base64.h>

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington#include <isc/buffer.h>

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington#include <isc/event.h>

368aedf188d7c7782cae8a5ce2a978be47b5a764Evan Hunt#include <isc/file.h>

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington#include <isc/mem.h>

5cd7e9d4db393c314dd1a761c52d2cb3a4da9b72Andreas Gustafsson#include <isc/net.h>

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence#include <isc/netaddr.h>

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews#include <isc/random.h>

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington#include <isc/result.h>

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington#include <isc/stdtime.h>

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington#include <isc/string.h>

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington#include <isc/timer.h>

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington#include <isc/util.h>

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

669e9657c731176df235832367f61435f7b83ddfAndreas Gustafsson#include <isccfg/namedconf.h>

c2bc56dc65b4b103a5600565680eb5f33fa4c90bMark Andrews

c2bc56dc65b4b103a5600565680eb5f33fa4c90bMark Andrews#include <bind9/check.h>

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington#include <isccc/alist.h>

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington#include <isccc/cc.h>

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington#include <isccc/ccmsg.h>

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington#include <isccc/events.h>

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington#include <isccc/result.h>

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington#include <isccc/sexpr.h>

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews#include <isccc/symtab.h>

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington#include <isccc/util.h>

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington#include <dns/result.h>

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

3dfc806ddf433d0569340d9c4ccc5af8ec41a27bBrian Wellington#include <named/config.h>

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington#include <named/control.h>

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington#include <named/log.h>

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington#include <named/server.h>

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtontypedef struct controlkey controlkey_t;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtontypedef ISC_LIST(controlkey_t) controlkeylist_t;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtontypedef struct controlconnection controlconnection_t;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtontypedef ISC_LIST(controlconnection_t) controlconnectionlist_t;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtontypedef struct controllistener controllistener_t;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtontypedef ISC_LIST(controllistener_t) controllistenerlist_t;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonstruct controlkey {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington char * keyname;

4eb998928b9aef0ceda42d7529980d658138698aEvan Hunt isc_uint32_t algorithm;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_region_t secret;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington ISC_LINK(controlkey_t) link;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington};

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonstruct controlconnection {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_socket_t * sock;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isccc_ccmsg_t ccmsg;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_boolean_t ccmsg_valid;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_boolean_t sending;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_timer_t * timer;

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt isc_buffer_t * buffer;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington controllistener_t * listener;

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews isc_uint32_t nonce;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington ISC_LINK(controlconnection_t) link;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington};

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonstruct controllistener {

532989b206894bdaf6de6cb883d2e31169c4bfacAndreas Gustafsson ns_controls_t * controls;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_mem_t * mctx;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_task_t * task;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_sockaddr_t address;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_socket_t * sock;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington dns_acl_t * acl;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_boolean_t listening;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_boolean_t exiting;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington controlkeylist_t keys;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington controlconnectionlist_t connections;

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews isc_sockettype_t type;

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews isc_uint32_t perm;

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews isc_uint32_t owner;

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews isc_uint32_t group;

58f7af60e79a5aaf58f6a8861c306d4c617fb1d1Mukund Sivaraman isc_boolean_t readonly;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington ISC_LINK(controllistener_t) link;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington};

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

532989b206894bdaf6de6cb883d2e31169c4bfacAndreas Gustafssonstruct ns_controls {

532989b206894bdaf6de6cb883d2e31169c4bfacAndreas Gustafsson ns_server_t *server;

532989b206894bdaf6de6cb883d2e31169c4bfacAndreas Gustafsson controllistenerlist_t listeners;

b32e75f3e1822f14681c538d7657bdbccd7fcd45Brian Wellington isc_boolean_t shuttingdown;

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews isccc_symtab_t *symtab;

532989b206894bdaf6de6cb883d2e31169c4bfacAndreas Gustafsson};

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonstatic void control_newconn(isc_task_t *task, isc_event_t *event);

091329e690b20755aa80b86cc7389d25c5d32c9bBrian Wellingtonstatic void control_recvmessage(isc_task_t *task, isc_event_t *event);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews#define CLOCKSKEW 300

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonstatic void

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonfree_controlkey(controlkey_t *key, isc_mem_t *mctx) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (key->keyname != NULL)

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_mem_free(mctx, key->keyname);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (key->secret.base != NULL)

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_mem_put(mctx, key->secret.base, key->secret.length);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_mem_put(mctx, key, sizeof(*key));

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington}

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonstatic void

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonfree_controlkeylist(controlkeylist_t *keylist, isc_mem_t *mctx) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington while (!ISC_LIST_EMPTY(*keylist)) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington controlkey_t *key = ISC_LIST_HEAD(*keylist);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington ISC_LIST_UNLINK(*keylist, key, link);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington free_controlkey(key, mctx);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington }

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington}

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonstatic void

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonfree_listener(controllistener_t *listener) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington INSIST(listener->exiting);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington INSIST(!listener->listening);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington INSIST(ISC_LIST_EMPTY(listener->connections));

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (listener->sock != NULL)

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_socket_detach(&listener->sock);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington free_controlkeylist(&listener->keys, listener->mctx);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (listener->acl != NULL)

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington dns_acl_detach(&listener->acl);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

3a0da183bb40bd120698102b20b61ef12665c09bMark Andrews isc_mem_putanddetach(&listener->mctx, listener, sizeof(*listener));

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington}

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonstatic void

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonmaybe_free_listener(controllistener_t *listener) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (listener->exiting &&

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington !listener->listening &&

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington ISC_LIST_EMPTY(listener->connections))

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington free_listener(listener);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington}

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonstatic void

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonmaybe_free_connection(controlconnection_t *conn) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington controllistener_t *listener = conn->listener;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt if (conn->buffer != NULL)

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt isc_buffer_free(&conn->buffer);

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (conn->timer != NULL)

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_timer_detach(&conn->timer);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (conn->ccmsg_valid) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isccc_ccmsg_cancelread(&conn->ccmsg);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington return;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington }

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (conn->sending) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_socket_cancel(conn->sock, listener->task,

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington ISC_SOCKCANCEL_SEND);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington return;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington }

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington ISC_LIST_UNLINK(listener->connections, conn, link);

19d80ce5844e00a021643759adcbe27c11b485a0Witold Krecicki#ifdef ENABLE_AFL

19d80ce5844e00a021643759adcbe27c11b485a0Witold Krecicki if (ns_g_fuzz_type == ns_fuzz_rndc) {

19d80ce5844e00a021643759adcbe27c11b485a0Witold Krecicki named_fuzz_notify();

19d80ce5844e00a021643759adcbe27c11b485a0Witold Krecicki }

19d80ce5844e00a021643759adcbe27c11b485a0Witold Krecicki#endif

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_mem_put(listener->mctx, conn, sizeof(*conn));

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington}

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonstatic void

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonshutdown_listener(controllistener_t *listener) {

32d248107a5bc92b4bf9fc77deaa55b3da969ba2Andreas Gustafsson controlconnection_t *conn;

32d248107a5bc92b4bf9fc77deaa55b3da969ba2Andreas Gustafsson controlconnection_t *next;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

ed3418751ebdf7de397df76753dae97851d2bdf9Brian Wellington if (!listener->exiting) {

ed3418751ebdf7de397df76753dae97851d2bdf9Brian Wellington char socktext[ISC_SOCKADDR_FORMATSIZE];

ed3418751ebdf7de397df76753dae97851d2bdf9Brian Wellington

32d248107a5bc92b4bf9fc77deaa55b3da969ba2Andreas Gustafsson ISC_LIST_UNLINK(listener->controls->listeners, listener, link);

32d248107a5bc92b4bf9fc77deaa55b3da969ba2Andreas Gustafsson

ed3418751ebdf7de397df76753dae97851d2bdf9Brian Wellington isc_sockaddr_format(&listener->address, socktext,

ed3418751ebdf7de397df76753dae97851d2bdf9Brian Wellington sizeof(socktext));

ed3418751ebdf7de397df76753dae97851d2bdf9Brian Wellington isc_log_write(ns_g_lctx, NS_LOGCATEGORY_GENERAL,

ed3418751ebdf7de397df76753dae97851d2bdf9Brian Wellington NS_LOGMODULE_CONTROL, ISC_LOG_NOTICE,

ed3418751ebdf7de397df76753dae97851d2bdf9Brian Wellington "stopping command channel on %s", socktext);

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews if (listener->type == isc_sockettype_unix)

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews isc_socket_cleanunix(&listener->address, ISC_TRUE);

ed3418751ebdf7de397df76753dae97851d2bdf9Brian Wellington listener->exiting = ISC_TRUE;

ed3418751ebdf7de397df76753dae97851d2bdf9Brian Wellington }

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

32d248107a5bc92b4bf9fc77deaa55b3da969ba2Andreas Gustafsson for (conn = ISC_LIST_HEAD(listener->connections);

32d248107a5bc92b4bf9fc77deaa55b3da969ba2Andreas Gustafsson conn != NULL;

32d248107a5bc92b4bf9fc77deaa55b3da969ba2Andreas Gustafsson conn = next)

32d248107a5bc92b4bf9fc77deaa55b3da969ba2Andreas Gustafsson {

32d248107a5bc92b4bf9fc77deaa55b3da969ba2Andreas Gustafsson next = ISC_LIST_NEXT(conn, link);

32d248107a5bc92b4bf9fc77deaa55b3da969ba2Andreas Gustafsson maybe_free_connection(conn);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington }

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

32d248107a5bc92b4bf9fc77deaa55b3da969ba2Andreas Gustafsson if (listener->listening)

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_socket_cancel(listener->sock, listener->task,

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington ISC_SOCKCANCEL_ACCEPT);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

32d248107a5bc92b4bf9fc77deaa55b3da969ba2Andreas Gustafsson maybe_free_listener(listener);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington}

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonstatic isc_boolean_t

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonaddress_ok(isc_sockaddr_t *sockaddr, dns_acl_t *acl) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_netaddr_t netaddr;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_result_t result;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington int match;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_netaddr_fromsockaddr(&netaddr, sockaddr);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington result = dns_acl_match(&netaddr, NULL, acl,

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington &ns_g_server->aclenv, &match, NULL);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (result != ISC_R_SUCCESS || match <= 0)

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington return (ISC_FALSE);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington else

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington return (ISC_TRUE);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington}

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonstatic isc_result_t

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtoncontrol_accept(controllistener_t *listener) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_result_t result;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington result = isc_socket_accept(listener->sock,

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington listener->task,

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington control_newconn, listener);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (result != ISC_R_SUCCESS)

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington UNEXPECTED_ERROR(__FILE__, __LINE__,

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington "isc_socket_accept() failed: %s",

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_result_totext(result));

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington else

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington listener->listening = ISC_TRUE;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington return (result);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington}

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonstatic isc_result_t

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtoncontrol_listen(controllistener_t *listener) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_result_t result;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington result = isc_socket_listen(listener->sock, 0);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (result != ISC_R_SUCCESS)

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington UNEXPECTED_ERROR(__FILE__, __LINE__,

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington "isc_socket_listen() failed: %s",

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_result_totext(result));

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington return (result);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington}

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonstatic void

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtoncontrol_next(controllistener_t *listener) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington (void)control_accept(listener);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington}

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonstatic void

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtoncontrol_senddone(isc_task_t *task, isc_event_t *event) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_socketevent_t *sevent = (isc_socketevent_t *) event;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington controlconnection_t *conn = event->ev_arg;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington controllistener_t *listener = conn->listener;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_socket_t *sock = (isc_socket_t *)sevent->ev_sender;

091329e690b20755aa80b86cc7389d25c5d32c9bBrian Wellington isc_result_t result;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington REQUIRE(conn->sending);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington UNUSED(task);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington conn->sending = ISC_FALSE;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (sevent->result != ISC_R_SUCCESS &&

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington sevent->result != ISC_R_CANCELED)

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington char socktext[ISC_SOCKADDR_FORMATSIZE];

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_sockaddr_t peeraddr;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington (void)isc_socket_getpeername(sock, &peeraddr);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_sockaddr_format(&peeraddr, socktext, sizeof(socktext));

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_log_write(ns_g_lctx, NS_LOGCATEGORY_GENERAL,

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington NS_LOGMODULE_CONTROL, ISC_LOG_WARNING,

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington "error sending command response to %s: %s",

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington socktext, isc_result_totext(sevent->result));

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington }

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_event_free(&event);

091329e690b20755aa80b86cc7389d25c5d32c9bBrian Wellington

091329e690b20755aa80b86cc7389d25c5d32c9bBrian Wellington result = isccc_ccmsg_readmessage(&conn->ccmsg, listener->task,

091329e690b20755aa80b86cc7389d25c5d32c9bBrian Wellington control_recvmessage, conn);

091329e690b20755aa80b86cc7389d25c5d32c9bBrian Wellington if (result != ISC_R_SUCCESS) {

091329e690b20755aa80b86cc7389d25c5d32c9bBrian Wellington isc_socket_detach(&conn->sock);

091329e690b20755aa80b86cc7389d25c5d32c9bBrian Wellington maybe_free_connection(conn);

091329e690b20755aa80b86cc7389d25c5d32c9bBrian Wellington maybe_free_listener(listener);

091329e690b20755aa80b86cc7389d25c5d32c9bBrian Wellington }

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington}

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonstatic inline void

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonlog_invalid(isccc_ccmsg_t *ccmsg, isc_result_t result) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington char socktext[ISC_SOCKADDR_FORMATSIZE];

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_sockaddr_t peeraddr;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington (void)isc_socket_getpeername(ccmsg->sock, &peeraddr);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_sockaddr_format(&peeraddr, socktext, sizeof(socktext));

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_log_write(ns_g_lctx, NS_LOGCATEGORY_GENERAL,

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington NS_LOGMODULE_CONTROL, ISC_LOG_ERROR,

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington "invalid command from %s: %s",

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington socktext, isc_result_totext(result));

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington}

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonstatic void

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtoncontrol_recvmessage(isc_task_t *task, isc_event_t *event) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington controlconnection_t *conn;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington controllistener_t *listener;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington controlkey_t *key;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isccc_sexpr_t *request = NULL;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isccc_sexpr_t *response = NULL;

4eb998928b9aef0ceda42d7529980d658138698aEvan Hunt isc_uint32_t algorithm;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isccc_region_t secret;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_stdtime_t now;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_buffer_t b;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_region_t r;

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt isc_buffer_t *text;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_result_t result;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_result_t eresult;

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews isccc_sexpr_t *_ctrl;

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews isccc_time_t sent;

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews isccc_time_t exp;

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews isc_uint32_t nonce;

9e804040a29b9c3066c8471b43835f30707039b7Evan Hunt isccc_sexpr_t *data;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington REQUIRE(event->ev_type == ISCCC_EVENT_CCMSG);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington conn = event->ev_arg;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington listener = conn->listener;

4eb998928b9aef0ceda42d7529980d658138698aEvan Hunt algorithm = DST_ALG_UNKNOWN;

c2da4f9d8a153ffeb2b659541130abef2d586789Brian Wellington secret.rstart = NULL;

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt text = NULL;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

2f012d936b5ccdf6520c96a4de23721dc58a2221Automatic Updater /* Is the server shutting down? */

2f012d936b5ccdf6520c96a4de23721dc58a2221Automatic Updater if (listener->controls->shuttingdown)

2f012d936b5ccdf6520c96a4de23721dc58a2221Automatic Updater goto cleanup;

640923da589bc5b8492ac407ef89ea1ee9a1c358Andreas Gustafsson

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (conn->ccmsg.result != ISC_R_SUCCESS) {

091329e690b20755aa80b86cc7389d25c5d32c9bBrian Wellington if (conn->ccmsg.result != ISC_R_CANCELED &&

091329e690b20755aa80b86cc7389d25c5d32c9bBrian Wellington conn->ccmsg.result != ISC_R_EOF)

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington log_invalid(&conn->ccmsg, conn->ccmsg.result);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington goto cleanup;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington }

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington request = NULL;

c2da4f9d8a153ffeb2b659541130abef2d586789Brian Wellington

c2da4f9d8a153ffeb2b659541130abef2d586789Brian Wellington for (key = ISC_LIST_HEAD(listener->keys);

c2da4f9d8a153ffeb2b659541130abef2d586789Brian Wellington key != NULL;

c2da4f9d8a153ffeb2b659541130abef2d586789Brian Wellington key = ISC_LIST_NEXT(key, link))

c2da4f9d8a153ffeb2b659541130abef2d586789Brian Wellington {

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt isccc_region_t ccregion;

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt

c2da4f9d8a153ffeb2b659541130abef2d586789Brian Wellington ccregion.rstart = isc_buffer_base(&conn->ccmsg.buffer);

c2da4f9d8a153ffeb2b659541130abef2d586789Brian Wellington ccregion.rend = isc_buffer_used(&conn->ccmsg.buffer);

c2da4f9d8a153ffeb2b659541130abef2d586789Brian Wellington secret.rstart = isc_mem_get(listener->mctx, key->secret.length);

c2da4f9d8a153ffeb2b659541130abef2d586789Brian Wellington if (secret.rstart == NULL)

c2da4f9d8a153ffeb2b659541130abef2d586789Brian Wellington goto cleanup;

e851ea826066ac5a5b01c2c23218faa0273a12e8Evan Hunt memmove(secret.rstart, key->secret.base, key->secret.length);

c2da4f9d8a153ffeb2b659541130abef2d586789Brian Wellington secret.rend = secret.rstart + key->secret.length;

4eb998928b9aef0ceda42d7529980d658138698aEvan Hunt algorithm = key->algorithm;

4eb998928b9aef0ceda42d7529980d658138698aEvan Hunt result = isccc_cc_fromwire(&ccregion, &request,

4eb998928b9aef0ceda42d7529980d658138698aEvan Hunt algorithm, &secret);

c2da4f9d8a153ffeb2b659541130abef2d586789Brian Wellington if (result == ISC_R_SUCCESS)

c2da4f9d8a153ffeb2b659541130abef2d586789Brian Wellington break;

546c2bf791782df1077217bdaf1865235fa95a93Mark Andrews isc_mem_put(listener->mctx, secret.rstart, REGION_SIZE(secret));

c298583db573a329f37d43301d8c3c812500ac85Mark Andrews if (result != ISCCC_R_BADAUTH) {

c298583db573a329f37d43301d8c3c812500ac85Mark Andrews log_invalid(&conn->ccmsg, result);

c298583db573a329f37d43301d8c3c812500ac85Mark Andrews goto cleanup;

c298583db573a329f37d43301d8c3c812500ac85Mark Andrews }

c2da4f9d8a153ffeb2b659541130abef2d586789Brian Wellington }

c2da4f9d8a153ffeb2b659541130abef2d586789Brian Wellington

c2da4f9d8a153ffeb2b659541130abef2d586789Brian Wellington if (key == NULL) {

c2da4f9d8a153ffeb2b659541130abef2d586789Brian Wellington log_invalid(&conn->ccmsg, ISCCC_R_BADAUTH);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington goto cleanup;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington }

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington /* We shouldn't be getting a reply. */

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (isccc_cc_isreply(request)) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington log_invalid(&conn->ccmsg, ISC_R_FAILURE);

546c2bf791782df1077217bdaf1865235fa95a93Mark Andrews goto cleanup_request;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington }

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews isc_stdtime_get(&now);

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews /*

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews _ctrl = isccc_alist_lookup(request, "_ctrl");

a2b15b3305acd52179e6f3dc7d073b07fbc40b8eMark Andrews if (!isccc_alist_alistp(_ctrl)) {

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews log_invalid(&conn->ccmsg, ISC_R_FAILURE);

546c2bf791782df1077217bdaf1865235fa95a93Mark Andrews goto cleanup_request;

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews }

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews if (isccc_cc_lookupuint32(_ctrl, "_tim", &sent) == ISC_R_SUCCESS) {

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews if ((sent + CLOCKSKEW) < now || (sent - CLOCKSKEW) > now) {

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews log_invalid(&conn->ccmsg, ISCCC_R_CLOCKSKEW);

546c2bf791782df1077217bdaf1865235fa95a93Mark Andrews goto cleanup_request;

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews }

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews } else {

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews log_invalid(&conn->ccmsg, ISC_R_FAILURE);

546c2bf791782df1077217bdaf1865235fa95a93Mark Andrews goto cleanup_request;

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews }

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews /*

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews if (isccc_cc_lookupuint32(_ctrl, "_exp", &exp) == ISC_R_SUCCESS &&

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews now > exp) {

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews log_invalid(&conn->ccmsg, ISCCC_R_EXPIRED);

546c2bf791782df1077217bdaf1865235fa95a93Mark Andrews goto cleanup_request;

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews }

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews /*

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews isccc_cc_cleansymtab(listener->controls->symtab, now);

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews result = isccc_cc_checkdup(listener->controls->symtab, request, now);

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews if (result != ISC_R_SUCCESS) {

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews if (result == ISC_R_EXISTS)

2f012d936b5ccdf6520c96a4de23721dc58a2221Automatic Updater result = ISCCC_R_DUPLICATE;

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews log_invalid(&conn->ccmsg, result);

546c2bf791782df1077217bdaf1865235fa95a93Mark Andrews goto cleanup_request;

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews }

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews if (conn->nonce != 0 &&

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews (isccc_cc_lookupuint32(_ctrl, "_nonce", &nonce) != ISC_R_SUCCESS ||

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews conn->nonce != nonce)) {

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews log_invalid(&conn->ccmsg, ISCCC_R_BADAUTH);

546c2bf791782df1077217bdaf1865235fa95a93Mark Andrews goto cleanup_request;

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews }

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt result = isc_buffer_allocate(listener->mctx, &text, 2 * 2048);

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt if (result != ISC_R_SUCCESS)

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt goto cleanup_request;

c1e88f8d8679501def1896fb4c4af927a70813ebEvan Hunt

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews /*

c1e88f8d8679501def1896fb4c4af927a70813ebEvan Hunt if (conn->nonce == 0) {

c1e88f8d8679501def1896fb4c4af927a70813ebEvan Hunt while (conn->nonce == 0)

c1e88f8d8679501def1896fb4c4af927a70813ebEvan Hunt isc_random_get(&conn->nonce);

c1e88f8d8679501def1896fb4c4af927a70813ebEvan Hunt eresult = ISC_R_SUCCESS;

c1e88f8d8679501def1896fb4c4af927a70813ebEvan Hunt } else

58f7af60e79a5aaf58f6a8861c306d4c617fb1d1Mukund Sivaraman eresult = ns_control_docommand(request, listener->readonly, &text);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington result = isccc_cc_createresponse(request, now, now + 60, &response);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (result != ISC_R_SUCCESS)

546c2bf791782df1077217bdaf1865235fa95a93Mark Andrews goto cleanup_request;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

9e804040a29b9c3066c8471b43835f30707039b7Evan Hunt data = isccc_alist_lookup(response, "_data");

9e804040a29b9c3066c8471b43835f30707039b7Evan Hunt if (data != NULL) {

9e804040a29b9c3066c8471b43835f30707039b7Evan Hunt if (isccc_cc_defineuint32(data, "result", eresult) == NULL)

9e804040a29b9c3066c8471b43835f30707039b7Evan Hunt goto cleanup_response;

9e804040a29b9c3066c8471b43835f30707039b7Evan Hunt }

9e804040a29b9c3066c8471b43835f30707039b7Evan Hunt

9e804040a29b9c3066c8471b43835f30707039b7Evan Hunt if (eresult != ISC_R_SUCCESS) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (data != NULL) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington const char *estr = isc_result_totext(eresult);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (isccc_cc_definestring(data, "err", estr) == NULL)

546c2bf791782df1077217bdaf1865235fa95a93Mark Andrews goto cleanup_response;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington }

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington }

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt if (isc_buffer_usedlength(text) > 0) {

e4cd5a1e5d0358abeee7618b02b4592c055d957fBrian Wellington if (data != NULL) {

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt char *str = (char *)isc_buffer_base(text);

e4cd5a1e5d0358abeee7618b02b4592c055d957fBrian Wellington if (isccc_cc_definestring(data, "text", str) == NULL)

546c2bf791782df1077217bdaf1865235fa95a93Mark Andrews goto cleanup_response;

e4cd5a1e5d0358abeee7618b02b4592c055d957fBrian Wellington }

e4cd5a1e5d0358abeee7618b02b4592c055d957fBrian Wellington }

e4cd5a1e5d0358abeee7618b02b4592c055d957fBrian Wellington

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews _ctrl = isccc_alist_lookup(response, "_ctrl");

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews if (_ctrl == NULL ||

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews isccc_cc_defineuint32(_ctrl, "_nonce", conn->nonce) == NULL)

546c2bf791782df1077217bdaf1865235fa95a93Mark Andrews goto cleanup_response;

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt if (conn->buffer == NULL) {

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt result = isc_buffer_allocate(listener->mctx,

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt &conn->buffer, 2 * 2048);

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt if (result != ISC_R_SUCCESS)

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt goto cleanup_response;

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt }

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt isc_buffer_clear(conn->buffer);

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt /* Skip the length field (4 bytes) */

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt isc_buffer_add(conn->buffer, 4);

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt result = isccc_cc_towire(response, &conn->buffer, algorithm, &secret);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (result != ISC_R_SUCCESS)

546c2bf791782df1077217bdaf1865235fa95a93Mark Andrews goto cleanup_response;

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt isc_buffer_init(&b, conn->buffer->base, 4);

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt isc_buffer_putuint32(&b, conn->buffer->used - 4);

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt r.base = conn->buffer->base;

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt r.length = conn->buffer->used;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington result = isc_socket_send(conn->sock, &r, task, control_senddone, conn);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (result != ISC_R_SUCCESS)

546c2bf791782df1077217bdaf1865235fa95a93Mark Andrews goto cleanup_response;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington conn->sending = ISC_TRUE;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

546c2bf791782df1077217bdaf1865235fa95a93Mark Andrews isc_mem_put(listener->mctx, secret.rstart, REGION_SIZE(secret));

546c2bf791782df1077217bdaf1865235fa95a93Mark Andrews isccc_sexpr_free(&request);

546c2bf791782df1077217bdaf1865235fa95a93Mark Andrews isccc_sexpr_free(&response);

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt isc_buffer_free(&text);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington return;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

546c2bf791782df1077217bdaf1865235fa95a93Mark Andrews cleanup_response:

546c2bf791782df1077217bdaf1865235fa95a93Mark Andrews isccc_sexpr_free(&response);

546c2bf791782df1077217bdaf1865235fa95a93Mark Andrews

546c2bf791782df1077217bdaf1865235fa95a93Mark Andrews cleanup_request:

546c2bf791782df1077217bdaf1865235fa95a93Mark Andrews isccc_sexpr_free(&request);

546c2bf791782df1077217bdaf1865235fa95a93Mark Andrews isc_mem_put(listener->mctx, secret.rstart, REGION_SIZE(secret));

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt if (text != NULL)

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt isc_buffer_free(&text);

546c2bf791782df1077217bdaf1865235fa95a93Mark Andrews

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington cleanup:

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_socket_detach(&conn->sock);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isccc_ccmsg_invalidate(&conn->ccmsg);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington conn->ccmsg_valid = ISC_FALSE;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington maybe_free_connection(conn);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington maybe_free_listener(listener);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington}

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonstatic void

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtoncontrol_timeout(isc_task_t *task, isc_event_t *event) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington controlconnection_t *conn = event->ev_arg;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington UNUSED(task);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_timer_detach(&conn->timer);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington maybe_free_connection(conn);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_event_free(&event);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington}

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonstatic isc_result_t

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonnewconnection(controllistener_t *listener, isc_socket_t *sock) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington controlconnection_t *conn;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_interval_t interval;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_result_t result;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington conn = isc_mem_get(listener->mctx, sizeof(*conn));

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (conn == NULL)

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington return (ISC_R_NOMEMORY);

2f012d936b5ccdf6520c96a4de23721dc58a2221Automatic Updater

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington conn->sock = sock;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isccc_ccmsg_init(listener->mctx, sock, &conn->ccmsg);

9b17fd447c684a84b2f5fbfb04ad6e890ae2078cMukund Sivaraman

9b17fd447c684a84b2f5fbfb04ad6e890ae2078cMukund Sivaraman /* Set a 32 KiB upper limit on incoming message. */

9b17fd447c684a84b2f5fbfb04ad6e890ae2078cMukund Sivaraman isccc_ccmsg_setmaxsize(&conn->ccmsg, 32768);

9b17fd447c684a84b2f5fbfb04ad6e890ae2078cMukund Sivaraman

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington conn->ccmsg_valid = ISC_TRUE;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington conn->sending = ISC_FALSE;

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt conn->buffer = NULL;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington conn->timer = NULL;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_interval_set(&interval, 60, 0);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington result = isc_timer_create(ns_g_timermgr, isc_timertype_once,

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington NULL, &interval, listener->task,

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington control_timeout, conn, &conn->timer);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (result != ISC_R_SUCCESS)

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington goto cleanup;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington conn->listener = listener;

72ddc4cef9c6a6de53aae530dea1ddbb90631131Mark Andrews conn->nonce = 0;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington ISC_LINK_INIT(conn, link);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington result = isccc_ccmsg_readmessage(&conn->ccmsg, listener->task,

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington control_recvmessage, conn);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (result != ISC_R_SUCCESS)

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington goto cleanup;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington ISC_LIST_APPEND(listener->connections, conn, link);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington return (ISC_R_SUCCESS);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington cleanup:

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt if (conn->buffer != NULL)

e32d354f754a5d7847a0862bcd6302827ea225bfEvan Hunt isc_buffer_free(&conn->buffer);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isccc_ccmsg_invalidate(&conn->ccmsg);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (conn->timer != NULL)

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_timer_detach(&conn->timer);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_mem_put(listener->mctx, conn, sizeof(*conn));

19d80ce5844e00a021643759adcbe27c11b485a0Witold Krecicki#ifdef ENABLE_AFL

19d80ce5844e00a021643759adcbe27c11b485a0Witold Krecicki if (ns_g_fuzz_type == ns_fuzz_rndc) {

19d80ce5844e00a021643759adcbe27c11b485a0Witold Krecicki named_fuzz_notify();

19d80ce5844e00a021643759adcbe27c11b485a0Witold Krecicki }

19d80ce5844e00a021643759adcbe27c11b485a0Witold Krecicki#endif

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington return (result);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington}

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonstatic void

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtoncontrol_newconn(isc_task_t *task, isc_event_t *event) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_socket_newconnev_t *nevent = (isc_socket_newconnev_t *)event;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington controllistener_t *listener = event->ev_arg;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_socket_t *sock;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_sockaddr_t peeraddr;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_result_t result;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington UNUSED(task);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

32d248107a5bc92b4bf9fc77deaa55b3da969ba2Andreas Gustafsson listener->listening = ISC_FALSE;

32d248107a5bc92b4bf9fc77deaa55b3da969ba2Andreas Gustafsson

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (nevent->result != ISC_R_SUCCESS) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (nevent->result == ISC_R_CANCELED) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington shutdown_listener(listener);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington goto cleanup;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington }

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington goto restart;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington }

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington sock = nevent->newsocket;

96ea71632887c58a9d00f47eb318bf76b35903c3Mark Andrews isc_socket_setname(sock, "control", NULL);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington (void)isc_socket_getpeername(sock, &peeraddr);

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews if (listener->type == isc_sockettype_tcp &&

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews !address_ok(&peeraddr, listener->acl)) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington char socktext[ISC_SOCKADDR_FORMATSIZE];

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_sockaddr_format(&peeraddr, socktext, sizeof(socktext));

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_log_write(ns_g_lctx, NS_LOGCATEGORY_GENERAL,

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington NS_LOGMODULE_CONTROL, ISC_LOG_WARNING,

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington "rejected command channel message from %s",

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington socktext);

b541c10d0442d9804d94567a97956cec3bd2912dBrian Wellington isc_socket_detach(&sock);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington goto restart;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington }

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington result = newconnection(listener, sock);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (result != ISC_R_SUCCESS) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington char socktext[ISC_SOCKADDR_FORMATSIZE];

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_sockaddr_format(&peeraddr, socktext, sizeof(socktext));

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_log_write(ns_g_lctx, NS_LOGCATEGORY_GENERAL,

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington NS_LOGMODULE_CONTROL, ISC_LOG_WARNING,

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington "dropped command channel from %s: %s",

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington socktext, isc_result_totext(result));

b541c10d0442d9804d94567a97956cec3bd2912dBrian Wellington isc_socket_detach(&sock);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington goto restart;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington }

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington restart:

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington control_next(listener);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington cleanup:

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_event_free(&event);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington}

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

9cc98b104e1a1d479a4cf9a47e2acccba927dbcdBrian Wellingtonstatic void

9cc98b104e1a1d479a4cf9a47e2acccba927dbcdBrian Wellingtoncontrols_shutdown(ns_controls_t *controls) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington controllistener_t *listener;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington controllistener_t *next;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

532989b206894bdaf6de6cb883d2e31169c4bfacAndreas Gustafsson for (listener = ISC_LIST_HEAD(controls->listeners);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington listener != NULL;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington listener = next)

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington /*

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington next = ISC_LIST_NEXT(listener, link);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington shutdown_listener(listener);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington }

9cc98b104e1a1d479a4cf9a47e2acccba927dbcdBrian Wellington}

9cc98b104e1a1d479a4cf9a47e2acccba927dbcdBrian Wellington

9cc98b104e1a1d479a4cf9a47e2acccba927dbcdBrian Wellingtonns_controls_shutdown(ns_controls_t *controls) {

9cc98b104e1a1d479a4cf9a47e2acccba927dbcdBrian Wellington controls_shutdown(controls);

b32e75f3e1822f14681c538d7657bdbccd7fcd45Brian Wellington controls->shuttingdown = ISC_TRUE;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington}

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonstatic isc_result_t

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrewscfgkeylist_find(const cfg_obj_t *keylist, const char *keyname,

2f012d936b5ccdf6520c96a4de23721dc58a2221Automatic Updater const cfg_obj_t **objp)

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrews{

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrews const cfg_listelt_t *element;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington const char *str;

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrews const cfg_obj_t *obj;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington for (element = cfg_list_first(keylist);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington element != NULL;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington element = cfg_list_next(element))

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington obj = cfg_listelt_value(element);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington str = cfg_obj_asstring(cfg_map_getname(obj));

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (strcasecmp(str, keyname) == 0)

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington break;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington }

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (element == NULL)

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington return (ISC_R_NOTFOUND);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington obj = cfg_listelt_value(element);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington *objp = obj;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington return (ISC_R_SUCCESS);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington}

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonstatic isc_result_t

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrewscontrolkeylist_fromcfg(const cfg_obj_t *keylist, isc_mem_t *mctx,

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence controlkeylist_t *keyids)

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington{

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrews const cfg_listelt_t *element;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington char *newstr = NULL;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington const char *str;

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrews const cfg_obj_t *obj;

cfcb0881d12db2b7cb33475b7d20ac6c9015203bMark Andrews controlkey_t *key;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington for (element = cfg_list_first(keylist);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington element != NULL;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington element = cfg_list_next(element))

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington obj = cfg_listelt_value(element);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington str = cfg_obj_asstring(obj);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington newstr = isc_mem_strdup(mctx, str);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (newstr == NULL)

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington goto cleanup;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington key = isc_mem_get(mctx, sizeof(*key));

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (key == NULL)

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington goto cleanup;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington key->keyname = newstr;

4eb998928b9aef0ceda42d7529980d658138698aEvan Hunt key->algorithm = DST_ALG_UNKNOWN;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington key->secret.base = NULL;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington key->secret.length = 0;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington ISC_LINK_INIT(key, link);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington ISC_LIST_APPEND(*keyids, key, link);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington newstr = NULL;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington }

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington return (ISC_R_SUCCESS);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington cleanup:

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (newstr != NULL)

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_mem_free(mctx, newstr);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington free_controlkeylist(keyids, mctx);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington return (ISC_R_NOMEMORY);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington}

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonstatic void

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrewsregister_keys(const cfg_obj_t *control, const cfg_obj_t *keylist,

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews controlkeylist_t *keyids, isc_mem_t *mctx, const char *socktext)

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington{

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington controlkey_t *keyid, *next;

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrews const cfg_obj_t *keydef;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington char secret[1024];

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_buffer_t b;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_result_t result;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington /*

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington for (keyid = ISC_LIST_HEAD(*keyids); keyid != NULL; keyid = next) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington next = ISC_LIST_NEXT(keyid, link);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington result = cfgkeylist_find(keylist, keyid->keyname, &keydef);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (result != ISC_R_SUCCESS) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington cfg_obj_log(control, ns_g_lctx, ISC_LOG_WARNING,

6e0e723b2554ba1c4af8b79733f54bf2692cdecfAndreas Gustafsson "couldn't find key '%s' for use with "

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington "command channel %s",

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington keyid->keyname, socktext);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington ISC_LIST_UNLINK(*keyids, keyid, link);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington free_controlkey(keyid, mctx);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington } else {

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrews const cfg_obj_t *algobj = NULL;

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrews const cfg_obj_t *secretobj = NULL;

4e1d3e67cdc76609bad5f0310ac48de10b442b9fMark Andrews const char *algstr = NULL;

4e1d3e67cdc76609bad5f0310ac48de10b442b9fMark Andrews const char *secretstr = NULL;

4eb998928b9aef0ceda42d7529980d658138698aEvan Hunt unsigned int algtype;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington (void)cfg_map_get(keydef, "algorithm", &algobj);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington (void)cfg_map_get(keydef, "secret", &secretobj);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington INSIST(algobj != NULL && secretobj != NULL);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington algstr = cfg_obj_asstring(algobj);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington secretstr = cfg_obj_asstring(secretobj);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

4eb998928b9aef0ceda42d7529980d658138698aEvan Hunt if (ns_config_getkeyalgorithm2(algstr, NULL,

4eb998928b9aef0ceda42d7529980d658138698aEvan Hunt &algtype, NULL) != ISC_R_SUCCESS)

3dfc806ddf433d0569340d9c4ccc5af8ec41a27bBrian Wellington {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington cfg_obj_log(control, ns_g_lctx,

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington ISC_LOG_WARNING,

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington "unsupported algorithm '%s' in "

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington "key '%s' for use with command "

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington "channel %s",

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington algstr, keyid->keyname, socktext);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington ISC_LIST_UNLINK(*keyids, keyid, link);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington free_controlkey(keyid, mctx);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington continue;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington }

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

4eb998928b9aef0ceda42d7529980d658138698aEvan Hunt keyid->algorithm = algtype;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_buffer_init(&b, secret, sizeof(secret));

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington result = isc_base64_decodestring(secretstr, &b);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (result != ISC_R_SUCCESS) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington cfg_obj_log(keydef, ns_g_lctx, ISC_LOG_WARNING,

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington "secret for key '%s' on "

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington "command channel %s: %s",

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington keyid->keyname, socktext,

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_result_totext(result));

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington ISC_LIST_UNLINK(*keyids, keyid, link);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington free_controlkey(keyid, mctx);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington continue;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington }

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington keyid->secret.length = isc_buffer_usedlength(&b);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington keyid->secret.base = isc_mem_get(mctx,

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington keyid->secret.length);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (keyid->secret.base == NULL) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington cfg_obj_log(keydef, ns_g_lctx, ISC_LOG_WARNING,

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington "couldn't register key '%s': "

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington "out of memory", keyid->keyname);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington ISC_LIST_UNLINK(*keyids, keyid, link);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington free_controlkey(keyid, mctx);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington break;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington }

e851ea826066ac5a5b01c2c23218faa0273a12e8Evan Hunt memmove(keyid->secret.base, isc_buffer_base(&b),

e851ea826066ac5a5b01c2c23218faa0273a12e8Evan Hunt keyid->secret.length);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington }

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington }

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington}

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews#define CHECK(x) \

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews do { \

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews result = (x); \

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews if (result != ISC_R_SUCCESS) \

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews goto cleanup; \

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews } while (0)

2f012d936b5ccdf6520c96a4de23721dc58a2221Automatic Updater

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrencestatic isc_result_t

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrewsget_rndckey(isc_mem_t *mctx, controlkeylist_t *keyids) {

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence isc_result_t result;

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews cfg_parser_t *pctx = NULL;

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews cfg_obj_t *config = NULL;

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrews const cfg_obj_t *key = NULL;

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrews const cfg_obj_t *algobj = NULL;

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrews const cfg_obj_t *secretobj = NULL;

4e1d3e67cdc76609bad5f0310ac48de10b442b9fMark Andrews const char *algstr = NULL;

4e1d3e67cdc76609bad5f0310ac48de10b442b9fMark Andrews const char *secretstr = NULL;

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews controlkey_t *keyid = NULL;

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews char secret[1024];

4eb998928b9aef0ceda42d7529980d658138698aEvan Hunt unsigned int algtype;

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews isc_buffer_t b;

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence

368aedf188d7c7782cae8a5ce2a978be47b5a764Evan Hunt isc_log_write(ns_g_lctx, NS_LOGCATEGORY_GENERAL,

368aedf188d7c7782cae8a5ce2a978be47b5a764Evan Hunt NS_LOGMODULE_CONTROL, ISC_LOG_INFO,

368aedf188d7c7782cae8a5ce2a978be47b5a764Evan Hunt "configuring command channel from '%s'",

368aedf188d7c7782cae8a5ce2a978be47b5a764Evan Hunt ns_g_keyfile);

368aedf188d7c7782cae8a5ce2a978be47b5a764Evan Hunt if (! isc_file_exists(ns_g_keyfile))

368aedf188d7c7782cae8a5ce2a978be47b5a764Evan Hunt return (ISC_R_FILENOTFOUND);

368aedf188d7c7782cae8a5ce2a978be47b5a764Evan Hunt

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews CHECK(cfg_parser_create(mctx, ns_g_lctx, &pctx));

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews CHECK(cfg_parse_file(pctx, ns_g_keyfile, &cfg_type_rndckey, &config));

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews CHECK(cfg_map_get(config, "key", &key));

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews keyid = isc_mem_get(mctx, sizeof(*keyid));

2f012d936b5ccdf6520c96a4de23721dc58a2221Automatic Updater if (keyid == NULL)

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews CHECK(ISC_R_NOMEMORY);

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews keyid->keyname = isc_mem_strdup(mctx,

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews cfg_obj_asstring(cfg_map_getname(key)));

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews keyid->secret.base = NULL;

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews keyid->secret.length = 0;

4eb998928b9aef0ceda42d7529980d658138698aEvan Hunt keyid->algorithm = DST_ALG_UNKNOWN;

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews ISC_LINK_INIT(keyid, link);

2f012d936b5ccdf6520c96a4de23721dc58a2221Automatic Updater if (keyid->keyname == NULL)

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews CHECK(ISC_R_NOMEMORY);

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews

c2bc56dc65b4b103a5600565680eb5f33fa4c90bMark Andrews CHECK(bind9_check_key(key, ns_g_lctx));

7dac8d231c644c5d3339f48d8eaedcf498f9d153Andreas Gustafsson

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews (void)cfg_map_get(key, "algorithm", &algobj);

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews (void)cfg_map_get(key, "secret", &secretobj);

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews INSIST(algobj != NULL && secretobj != NULL);

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews algstr = cfg_obj_asstring(algobj);

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews secretstr = cfg_obj_asstring(secretobj);

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews

4eb998928b9aef0ceda42d7529980d658138698aEvan Hunt if (ns_config_getkeyalgorithm2(algstr, NULL,

4eb998928b9aef0ceda42d7529980d658138698aEvan Hunt &algtype, NULL) != ISC_R_SUCCESS) {

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews cfg_obj_log(key, ns_g_lctx,

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews ISC_LOG_WARNING,

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews "unsupported algorithm '%s' in "

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews "key '%s' for use with command "

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews "channel",

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews algstr, keyid->keyname);

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews goto cleanup;

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence }

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence

4eb998928b9aef0ceda42d7529980d658138698aEvan Hunt keyid->algorithm = algtype;

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews isc_buffer_init(&b, secret, sizeof(secret));

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews result = isc_base64_decodestring(secretstr, &b);

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews if (result != ISC_R_SUCCESS) {

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews cfg_obj_log(key, ns_g_lctx, ISC_LOG_WARNING,

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews "secret for key '%s' on command channel: %s",

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews keyid->keyname, isc_result_totext(result));

0874abad14e3e9ecfc3dc1a1a2b9969f2f027724Mark Andrews goto cleanup;

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence }

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews keyid->secret.length = isc_buffer_usedlength(&b);

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews keyid->secret.base = isc_mem_get(mctx,

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews keyid->secret.length);

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews if (keyid->secret.base == NULL) {

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews cfg_obj_log(key, ns_g_lctx, ISC_LOG_WARNING,

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews "couldn't register key '%s': "

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews "out of memory", keyid->keyname);

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews CHECK(ISC_R_NOMEMORY);

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence }

e851ea826066ac5a5b01c2c23218faa0273a12e8Evan Hunt memmove(keyid->secret.base, isc_buffer_base(&b),

e851ea826066ac5a5b01c2c23218faa0273a12e8Evan Hunt keyid->secret.length);

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews ISC_LIST_APPEND(*keyids, keyid, link);

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews keyid = NULL;

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews result = ISC_R_SUCCESS;

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews cleanup:

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews if (keyid != NULL)

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews free_controlkey(keyid, mctx);

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews if (config != NULL)

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews cfg_obj_destroy(pctx, &config);

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews if (pctx != NULL)

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews cfg_parser_destroy(&pctx);

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence return (result);

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence}

2f012d936b5ccdf6520c96a4de23721dc58a2221Automatic Updater

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrencestatic void

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrewsget_key_info(const cfg_obj_t *config, const cfg_obj_t *control,

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrews const cfg_obj_t **global_keylistp,

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrews const cfg_obj_t **control_keylistp)

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence{

9bac746a3cdabdbb7b306875f101c03e637dc639Mark Andrews isc_result_t result;

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrews const cfg_obj_t *control_keylist = NULL;

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrews const cfg_obj_t *global_keylist = NULL;

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence REQUIRE(global_keylistp != NULL && *global_keylistp == NULL);

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence REQUIRE(control_keylistp != NULL && *control_keylistp == NULL);

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence control_keylist = cfg_tuple_get(control, "keys");

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews if (!cfg_obj_isvoid(control_keylist) &&

9bac746a3cdabdbb7b306875f101c03e637dc639Mark Andrews cfg_list_first(control_keylist) != NULL) {

9bac746a3cdabdbb7b306875f101c03e637dc639Mark Andrews result = cfg_map_get(config, "key", &global_keylist);

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence

9bac746a3cdabdbb7b306875f101c03e637dc639Mark Andrews if (result == ISC_R_SUCCESS) {

9bac746a3cdabdbb7b306875f101c03e637dc639Mark Andrews *global_keylistp = global_keylist;

9bac746a3cdabdbb7b306875f101c03e637dc639Mark Andrews *control_keylistp = control_keylist;

9bac746a3cdabdbb7b306875f101c03e637dc639Mark Andrews }

9bac746a3cdabdbb7b306875f101c03e637dc639Mark Andrews }

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence}

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonstatic void

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrewsupdate_listener(ns_controls_t *cp, controllistener_t **listenerp,

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrews const cfg_obj_t *control, const cfg_obj_t *config,

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrews isc_sockaddr_t *addr, cfg_aclconfctx_t *aclconfctx,

2f012d936b5ccdf6520c96a4de23721dc58a2221Automatic Updater const char *socktext, isc_sockettype_t type)

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington{

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington controllistener_t *listener;

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrews const cfg_obj_t *allow;

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrews const cfg_obj_t *global_keylist = NULL;

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrews const cfg_obj_t *control_keylist = NULL;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington dns_acl_t *new_acl = NULL;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington controlkeylist_t keys;

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence isc_result_t result = ISC_R_SUCCESS;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

532989b206894bdaf6de6cb883d2e31169c4bfacAndreas Gustafsson for (listener = ISC_LIST_HEAD(cp->listeners);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington listener != NULL;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington listener = ISC_LIST_NEXT(listener, link))

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (isc_sockaddr_equal(addr, &listener->address))

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington break;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (listener == NULL) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington *listenerp = NULL;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington return;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington }

2f012d936b5ccdf6520c96a4de23721dc58a2221Automatic Updater

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington /*

ee8a5c01e20740f60be1a87123d6c81ec2c5f8b1Mark Andrews if (control != NULL)

ee8a5c01e20740f60be1a87123d6c81ec2c5f8b1Mark Andrews get_key_info(config, control, &global_keylist,

ee8a5c01e20740f60be1a87123d6c81ec2c5f8b1Mark Andrews &control_keylist);

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence if (control_keylist != NULL) {

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence INSIST(global_keylist != NULL);

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence ISC_LIST_INIT(keys);

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence result = controlkeylist_fromcfg(control_keylist,

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence listener->mctx, &keys);

8173a963d2f8c413e698bf48b8eebdd01f3bb877Mark Andrews if (result == ISC_R_SUCCESS) {

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews free_controlkeylist(&listener->keys, listener->mctx);

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews listener->keys = keys;

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews register_keys(control, global_keylist, &listener->keys,

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews listener->mctx, socktext);

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews }

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews } else {

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence free_controlkeylist(&listener->keys, listener->mctx);

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews result = get_rndckey(listener->mctx, &listener->keys);

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews }

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence

ade83e60fa640d495de7d46bed87114d6f9a740cMark Andrews if (result != ISC_R_SUCCESS && global_keylist != NULL) {

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence /*

2674e1a455d4f71de09b2b60e7a8304b9a305588Mark Andrews if (control != NULL)

2674e1a455d4f71de09b2b60e7a8304b9a305588Mark Andrews cfg_obj_log(control, ns_g_lctx, ISC_LOG_WARNING,

2674e1a455d4f71de09b2b60e7a8304b9a305588Mark Andrews "couldn't install new keys for "

2674e1a455d4f71de09b2b60e7a8304b9a305588Mark Andrews "command channel %s: %s",

2674e1a455d4f71de09b2b60e7a8304b9a305588Mark Andrews socktext, isc_result_totext(result));

2674e1a455d4f71de09b2b60e7a8304b9a305588Mark Andrews else

2674e1a455d4f71de09b2b60e7a8304b9a305588Mark Andrews isc_log_write(ns_g_lctx, NS_LOGCATEGORY_GENERAL,

2674e1a455d4f71de09b2b60e7a8304b9a305588Mark Andrews NS_LOGMODULE_CONTROL, ISC_LOG_WARNING,

2674e1a455d4f71de09b2b60e7a8304b9a305588Mark Andrews "couldn't install new keys for "

2674e1a455d4f71de09b2b60e7a8304b9a305588Mark Andrews "command channel %s: %s",

2674e1a455d4f71de09b2b60e7a8304b9a305588Mark Andrews socktext, isc_result_totext(result));

ade83e60fa640d495de7d46bed87114d6f9a740cMark Andrews }

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence /*

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews if (control != NULL && type == isc_sockettype_tcp) {

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews allow = cfg_tuple_get(control, "allow");

ad5bc22a819190839bdcc4d102d023782dc23660Mark Andrews result = cfg_acl_fromconfig(allow, config, ns_g_lctx,

c7e266b7e5675e12d1ca3cc929f24b3e86d41f8eEvan Hunt aclconfctx, listener->mctx, 0,

ad5bc22a819190839bdcc4d102d023782dc23660Mark Andrews &new_acl);

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews } else {

1bcdcce64b5b0f66a23fb784b442d38a134581c8Andreas Gustafsson result = dns_acl_any(listener->mctx, &new_acl);

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews }

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews

58f7af60e79a5aaf58f6a8861c306d4c617fb1d1Mukund Sivaraman if (control != NULL) {

58f7af60e79a5aaf58f6a8861c306d4c617fb1d1Mukund Sivaraman const cfg_obj_t *readonly;

58f7af60e79a5aaf58f6a8861c306d4c617fb1d1Mukund Sivaraman

58f7af60e79a5aaf58f6a8861c306d4c617fb1d1Mukund Sivaraman readonly = cfg_tuple_get(control, "read-only");

58f7af60e79a5aaf58f6a8861c306d4c617fb1d1Mukund Sivaraman if (!cfg_obj_isvoid(readonly))

58f7af60e79a5aaf58f6a8861c306d4c617fb1d1Mukund Sivaraman listener->readonly = cfg_obj_asboolean(readonly);

58f7af60e79a5aaf58f6a8861c306d4c617fb1d1Mukund Sivaraman }

58f7af60e79a5aaf58f6a8861c306d4c617fb1d1Mukund Sivaraman

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (result == ISC_R_SUCCESS) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington dns_acl_detach(&listener->acl);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington dns_acl_attach(new_acl, &listener->acl);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington dns_acl_detach(&new_acl);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington /* XXXDCL say the old acl is still used? */

2674e1a455d4f71de09b2b60e7a8304b9a305588Mark Andrews } else if (control != NULL)

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington cfg_obj_log(control, ns_g_lctx, ISC_LOG_WARNING,

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington "couldn't install new acl for "

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington "command channel %s: %s",

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington socktext, isc_result_totext(result));

2674e1a455d4f71de09b2b60e7a8304b9a305588Mark Andrews else

2674e1a455d4f71de09b2b60e7a8304b9a305588Mark Andrews isc_log_write(ns_g_lctx, NS_LOGCATEGORY_GENERAL,

2674e1a455d4f71de09b2b60e7a8304b9a305588Mark Andrews NS_LOGMODULE_CONTROL, ISC_LOG_WARNING,

2674e1a455d4f71de09b2b60e7a8304b9a305588Mark Andrews "couldn't install new acl for "

2674e1a455d4f71de09b2b60e7a8304b9a305588Mark Andrews "command channel %s: %s",

2674e1a455d4f71de09b2b60e7a8304b9a305588Mark Andrews socktext, isc_result_totext(result));

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews if (result == ISC_R_SUCCESS && type == isc_sockettype_unix) {

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews isc_uint32_t perm, owner, group;

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews perm = cfg_obj_asuint32(cfg_tuple_get(control, "perm"));

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews owner = cfg_obj_asuint32(cfg_tuple_get(control, "owner"));

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews group = cfg_obj_asuint32(cfg_tuple_get(control, "group"));

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews result = ISC_R_SUCCESS;

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews if (listener->perm != perm || listener->owner != owner ||

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews listener->group != group)

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews result = isc_socket_permunix(&listener->address, perm,

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews owner, group);

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews if (result == ISC_R_SUCCESS) {

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews listener->perm = perm;

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews listener->owner = owner;

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews listener->group = group;

2674e1a455d4f71de09b2b60e7a8304b9a305588Mark Andrews } else if (control != NULL)

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews cfg_obj_log(control, ns_g_lctx, ISC_LOG_WARNING,

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews "couldn't update ownership/permission for "

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews "command channel %s", socktext);

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews }

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington *listenerp = listener;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington}

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellingtonstatic void

532989b206894bdaf6de6cb883d2e31169c4bfacAndreas Gustafssonadd_listener(ns_controls_t *cp, controllistener_t **listenerp,

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrews const cfg_obj_t *control, const cfg_obj_t *config,

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrews isc_sockaddr_t *addr, cfg_aclconfctx_t *aclconfctx,

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrews const char *socktext, isc_sockettype_t type)

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington{

532989b206894bdaf6de6cb883d2e31169c4bfacAndreas Gustafsson isc_mem_t *mctx = cp->server->mctx;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington controllistener_t *listener;

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrews const cfg_obj_t *allow;

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrews const cfg_obj_t *global_keylist = NULL;

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrews const cfg_obj_t *control_keylist = NULL;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington dns_acl_t *new_acl = NULL;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_result_t result = ISC_R_SUCCESS;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington listener = isc_mem_get(mctx, sizeof(*listener));

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (listener == NULL)

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington result = ISC_R_NOMEMORY;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (result == ISC_R_SUCCESS) {

3a0da183bb40bd120698102b20b61ef12665c09bMark Andrews listener->mctx = NULL;

3a0da183bb40bd120698102b20b61ef12665c09bMark Andrews isc_mem_attach(mctx, &listener->mctx);

532989b206894bdaf6de6cb883d2e31169c4bfacAndreas Gustafsson listener->controls = cp;

532989b206894bdaf6de6cb883d2e31169c4bfacAndreas Gustafsson listener->task = cp->server->task;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington listener->address = *addr;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington listener->sock = NULL;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington listener->listening = ISC_FALSE;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington listener->exiting = ISC_FALSE;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington listener->acl = NULL;

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews listener->type = type;

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews listener->perm = 0;

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews listener->owner = 0;

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews listener->group = 0;

58f7af60e79a5aaf58f6a8861c306d4c617fb1d1Mukund Sivaraman listener->readonly = ISC_FALSE;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington ISC_LINK_INIT(listener, link);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington ISC_LIST_INIT(listener->keys);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington ISC_LIST_INIT(listener->connections);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington /*

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews if (control != NULL && type == isc_sockettype_tcp) {

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews allow = cfg_tuple_get(control, "allow");

ad5bc22a819190839bdcc4d102d023782dc23660Mark Andrews result = cfg_acl_fromconfig(allow, config, ns_g_lctx,

c7e266b7e5675e12d1ca3cc929f24b3e86d41f8eEvan Hunt aclconfctx, mctx, 0,

2f012d936b5ccdf6520c96a4de23721dc58a2221Automatic Updater &new_acl);

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews } else {

b4b47bf1874a9dd19796d5593de47bd4c9d3d896Andreas Gustafsson result = dns_acl_any(mctx, &new_acl);

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews }

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington }

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

58f7af60e79a5aaf58f6a8861c306d4c617fb1d1Mukund Sivaraman if ((result == ISC_R_SUCCESS) && (control != NULL)) {

58f7af60e79a5aaf58f6a8861c306d4c617fb1d1Mukund Sivaraman const cfg_obj_t *readonly;

58f7af60e79a5aaf58f6a8861c306d4c617fb1d1Mukund Sivaraman

58f7af60e79a5aaf58f6a8861c306d4c617fb1d1Mukund Sivaraman readonly = cfg_tuple_get(control, "read-only");

58f7af60e79a5aaf58f6a8861c306d4c617fb1d1Mukund Sivaraman if (!cfg_obj_isvoid(readonly))

58f7af60e79a5aaf58f6a8861c306d4c617fb1d1Mukund Sivaraman listener->readonly = cfg_obj_asboolean(readonly);

58f7af60e79a5aaf58f6a8861c306d4c617fb1d1Mukund Sivaraman }

58f7af60e79a5aaf58f6a8861c306d4c617fb1d1Mukund Sivaraman

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (result == ISC_R_SUCCESS) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington dns_acl_attach(new_acl, &listener->acl);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington dns_acl_detach(&new_acl);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews if (config != NULL)

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews get_key_info(config, control, &global_keylist,

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews &control_keylist);

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews if (control_keylist != NULL) {

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence result = controlkeylist_fromcfg(control_keylist,

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence listener->mctx,

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence &listener->keys);

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews if (result == ISC_R_SUCCESS)

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews register_keys(control, global_keylist,

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews &listener->keys,

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews listener->mctx, socktext);

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence } else

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews result = get_rndckey(mctx, &listener->keys);

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews

326bcfa0e2a6b924cb829a0bcc3bf9590ce21ad6Mark Andrews if (result != ISC_R_SUCCESS && control != NULL)

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington cfg_obj_log(control, ns_g_lctx, ISC_LOG_WARNING,

7332e47e11ceb87928f801b925269aa6a91838b1David Lawrence "couldn't install keys for "

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington "command channel %s: %s",

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington socktext, isc_result_totext(result));

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington }

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (result == ISC_R_SUCCESS) {

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington int pf = isc_sockaddr_pf(&listener->address);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if ((pf == AF_INET && isc_net_probeipv4() != ISC_R_SUCCESS) ||

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews#ifdef ISC_PLATFORM_HAVESYSUNH

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews (pf == AF_UNIX && isc_net_probeunix() != ISC_R_SUCCESS) ||

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews#endif

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington (pf == AF_INET6 && isc_net_probeipv6() != ISC_R_SUCCESS))

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington result = ISC_R_FAMILYNOSUPPORT;

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington }

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews if (result == ISC_R_SUCCESS && type == isc_sockettype_unix)

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews isc_socket_cleanunix(&listener->address, ISC_FALSE);

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (result == ISC_R_SUCCESS)

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington result = isc_socket_create(ns_g_socketmgr,

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington isc_sockaddr_pf(&listener->address),

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews type, &listener->sock);

96ea71632887c58a9d00f47eb318bf76b35903c3Mark Andrews if (result == ISC_R_SUCCESS)

96ea71632887c58a9d00f47eb318bf76b35903c3Mark Andrews isc_socket_setname(listener->sock, "control", NULL);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

328e0fee6b6c91c258e5ce36eb70f5e017a85af2Mark Andrews#ifndef ISC_ALLOW_MAPPED

328e0fee6b6c91c258e5ce36eb70f5e017a85af2Mark Andrews if (result == ISC_R_SUCCESS)

328e0fee6b6c91c258e5ce36eb70f5e017a85af2Mark Andrews isc_socket_ipv6only(listener->sock, ISC_TRUE);

328e0fee6b6c91c258e5ce36eb70f5e017a85af2Mark Andrews#endif

328e0fee6b6c91c258e5ce36eb70f5e017a85af2Mark Andrews

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (result == ISC_R_SUCCESS)

240e53b13217af266abb3dae8ba103614daf2bf7Mark Andrews result = isc_socket_bind(listener->sock, &listener->address,

240e53b13217af266abb3dae8ba103614daf2bf7Mark Andrews ISC_SOCKET_REUSEADDRESS);

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews if (result == ISC_R_SUCCESS && type == isc_sockettype_unix) {

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews listener->perm = cfg_obj_asuint32(cfg_tuple_get(control,

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews "perm"));

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews listener->owner = cfg_obj_asuint32(cfg_tuple_get(control,

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews "owner"));

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews listener->group = cfg_obj_asuint32(cfg_tuple_get(control,

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews "group"));

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews result = isc_socket_permunix(&listener->address, listener->perm,

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews listener->owner, listener->group);

4423c99613db1399dbb5c51e86ef0d351a1418c2Mark Andrews }

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington if (result == ISC_R_SUCCESS)

1b4e6163bed546ca7f8ad186f3eabfebacc36bc1Brian Wellington result = control_listen(listener);