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use the logging library, not printf

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This commit is contained in:
Andreas Gustafsson
1999-10-25 20:23:13 +00:00
parent afda854d34
commit 8803b05108
1 changed files with 175 additions and 101 deletions
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236
bin/named/update.c
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@@ -52,6 +52,7 @@
#include <named/globals.h> #include <named/globals.h>
#include <named/client.h> #include <named/client.h>
#include <named/update.h> #include <named/update.h>
#include <named/log.h>
/* /*
* This module implements dynamic update as in RFC2136. * This module implements dynamic update as in RFC2136.
@@ -59,35 +60,79 @@
/* /*
XXX TODO: XXX TODO:
- serialization and queueing of update requests
- forwarding - forwarding
- locking?
- document strict minimality - document strict minimality
- use logging library, not printf
*/ */
/**************************************************************************/ /**************************************************************************/
/*
* Convenience macro of common isc_log_write() arguments
* to use in reportings server errors.
*/
#define UPDATE_ERROR_LOGARGS \
ns_g_lctx, NS_LOGCATEGORY_UPDATE, NS_LOGMODULE_UPDATE, \
ISC_LOG_ERROR
/*
* Convenience macro of common isc_log_write() arguments
* to use in tracing dynamic update protocol requests.
*/
#define UPDATE_PROTOCOL_LOGARGS \
ns_g_lctx, NS_LOGCATEGORY_UPDATE, NS_LOGMODULE_UPDATE, \
ISC_LOG_INFO
/*
* Convenience macro of common isc_log_write() arguments
* to use in low-level debug tracing.
*/
#define UPDATE_DEBUG_LOGARGS \
ns_g_lctx, NS_LOGCATEGORY_UPDATE, NS_LOGMODULE_UPDATE, \
ISC_LOG_DEBUG(8)
/* /*
* Check an operation for failure. These macros all assume that * Check an operation for failure. These macros all assume that
* the function using them has a 'result' variable and a 'failure' * the function using them has a 'result' variable and a 'failure'
* label. * label.
*/ */
#define CHECK(op) do { result = (op); \ #define CHECK(op) \
do { result = (op); \
if (result != DNS_R_SUCCESS) goto failure; \ if (result != DNS_R_SUCCESS) goto failure; \
} while (0) } while (0)
#define CHECKMSG(op, msg) do { result = (op); \
if (result != DNS_R_SUCCESS) { \
printf("%s\n", msg); \
goto failure; \
} \
} while (0)
/* /*
* Fail unconditionally with result 'code', which must not * Fail unconditionally with result 'code', which must not
* be DNS_R_SUCCESS. * be DNS_R_SUCCESS. The reason for failure presumably has
* been logged already.
*/ */
#define FAIL(code) CHECK(code)
#define FAILMSG(code, msg) CHECKMSG(code, msg) #define FAIL(code) \
do { \
result = (code); \
goto failure; \
} while (0)
/*
* Fail unconditionally and log as a client error.
*/
#define FAILC(code, msg) \
do { \
isc_log_write(UPDATE_PROTOCOL_LOGARGS, \
"dynamic update failed: %s (%s)", \
msg, isc_result_totext(code)); \
goto failure; \
} while (0)
/*
* Fail unconditionally and log as a server error.
*/
#define FAILS(code, msg) \
do { \
isc_log_write(UPDATE_PROTOCOL_LOGARGS, \
"dynamic update error: %s: %s", \
msg, isc_result_totext(code)); \
goto failure; \
} while (0)
/**************************************************************************/ /**************************************************************************/
@@ -1377,7 +1422,13 @@ update_signatures(isc_mem_t *mctx, dns_db_t *db, dns_dbversion_t *oldver,
result = find_zone_keys(db, newver, mctx, result = find_zone_keys(db, newver, mctx,
MAXZONEKEYS, zone_keys, &nkeys); MAXZONEKEYS, zone_keys, &nkeys);
CHECKMSG(result, "could not get zone keys"); if (result != DNS_R_SUCCESS) {
isc_log_write(ns_g_lctx, NS_LOGCATEGORY_UPDATE,
NS_LOGMODULE_UPDATE, ISC_LOG_ERROR,
"could not get zone keys for secure "
"dynamic update");
goto failure;
}
CHECK(isc_stdtime_get(&now)); CHECK(isc_stdtime_get(&now));
expire = 100000 + now; /* XXX */ expire = 100000 + now; /* XXX */
@@ -1689,7 +1740,9 @@ respond(ns_client_t *client, dns_result_t result) {
return; return;
msg_failure: msg_failure:
printf("could not send update response: %s\n", isc_log_write(ns_g_lctx, NS_LOGCATEGORY_UPDATE, NS_LOGMODULE_UPDATE,
ISC_LOG_ERROR,
"could not create update response message: %s",
isc_result_totext(msg_result)); isc_result_totext(msg_result));
ns_client_next(client, msg_result); ns_client_next(client, msg_result);
} }
@@ -1709,7 +1762,7 @@ ns_update_start(ns_client_t *client)
*/ */
result = dns_message_firstname(request, DNS_SECTION_ZONE); result = dns_message_firstname(request, DNS_SECTION_ZONE);
if (result != DNS_R_SUCCESS) if (result != DNS_R_SUCCESS)
FAILMSG(DNS_R_FORMERR, FAILC(DNS_R_FORMERR,
"update zone section empty"); "update zone section empty");
/* /*
@@ -1721,21 +1774,21 @@ ns_update_start(ns_client_t *client)
zone_rdataset = ISC_LIST_HEAD(zonename->list); zone_rdataset = ISC_LIST_HEAD(zonename->list);
zoneclass = zone_rdataset->rdclass; zoneclass = zone_rdataset->rdclass;
if (zone_rdataset->type != dns_rdatatype_soa) if (zone_rdataset->type != dns_rdatatype_soa)
FAILMSG(DNS_R_FORMERR, FAILC(DNS_R_FORMERR,
"update zone section contains non-SOA"); "update zone section contains non-SOA");
if (ISC_LIST_NEXT(zone_rdataset, link) != NULL) if (ISC_LIST_NEXT(zone_rdataset, link) != NULL)
FAILMSG(DNS_R_FORMERR, FAILC(DNS_R_FORMERR,
"update zone section contains multiple RRs"); "update zone section contains multiple RRs");
/* The zone section must have exactly one name. */ /* The zone section must have exactly one name. */
result = dns_message_nextname(request, DNS_SECTION_ZONE); result = dns_message_nextname(request, DNS_SECTION_ZONE);
if (result != DNS_R_NOMORE) if (result != DNS_R_NOMORE)
FAILMSG(DNS_R_FORMERR, FAILC(DNS_R_FORMERR,
"update zone section contains multiple RRs"); "update zone section contains multiple RRs");
result = dns_zt_find(client->view->zonetable, zonename, NULL, &zone); result = dns_zt_find(client->view->zonetable, zonename, NULL, &zone);
if (result != DNS_R_SUCCESS) if (result != DNS_R_SUCCESS)
FAILMSG(DNS_R_NOTAUTH, FAILC(DNS_R_NOTAUTH,
"not authoritative for update zone"); "not authoritative for update zone");
switch(dns_zone_gettype(zone)) { switch(dns_zone_gettype(zone)) {
@@ -1743,10 +1796,10 @@ ns_update_start(ns_client_t *client)
CHECK(send_update_event(client, zone)); CHECK(send_update_event(client, zone));
break; /* OK. */ break; /* OK. */
case dns_zone_slave: case dns_zone_slave:
FAILMSG(DNS_R_NOTIMP, FAILS(DNS_R_NOTIMP,
"update forwarding is not yet implemented"); /* XXX */ "update forwarding"); /* XXX implement */
default: default:
FAILMSG(DNS_R_NOTAUTH, FAILC(DNS_R_NOTAUTH,
"not authoritative for update zone"); "not authoritative for update zone");
} }
return; return;
@@ -1782,8 +1835,6 @@ update_action(isc_task_t *task, isc_event_t *event)
INSIST(event->type == DNS_EVENT_UPDATE); INSIST(event->type == DNS_EVENT_UPDATE);
printf("dequeued update request\n");
dns_diff_init(mctx, &diff); dns_diff_init(mctx, &diff);
dns_diff_init(mctx, &temp); dns_diff_init(mctx, &temp);
@@ -1793,8 +1844,6 @@ update_action(isc_task_t *task, isc_event_t *event)
dns_db_currentversion(db, &oldver); dns_db_currentversion(db, &oldver);
CHECK(dns_db_newversion(db, &ver)); CHECK(dns_db_newversion(db, &ver));
printf("new database version created\n");
/* Check prerequisites. */ /* Check prerequisites. */
for (result = dns_message_firstname(request, DNS_SECTION_PREREQUISITE); for (result = dns_message_firstname(request, DNS_SECTION_PREREQUISITE);
@@ -1811,21 +1860,22 @@ update_action(isc_task_t *task, isc_event_t *event)
&name, &rdata, &covers, &ttl, &update_class); &name, &rdata, &covers, &ttl, &update_class);
if (ttl != 0) if (ttl != 0)
FAILMSG(DNS_R_FORMERR, "prereq TTL != 0"); FAILC(DNS_R_FORMERR, "prerequisite TTL is not zero");
if (! dns_name_issubdomain(name, zonename)) if (! dns_name_issubdomain(name, zonename))
FAILMSG(DNS_R_NOTZONE, FAILC(DNS_R_NOTZONE,
"prereq name out of zone"); "prerequisite name is out of zone");
if (update_class == dns_rdataclass_any) { if (update_class == dns_rdataclass_any) {
if (rdata.length != 0) if (rdata.length != 0)
FAILMSG(DNS_R_FORMERR, FAILC(DNS_R_FORMERR,
"prereq data not empty"); "class ANY prerequisite "
"RDATA is not empty");
if (rdata.type == dns_rdatatype_any) { if (rdata.type == dns_rdatatype_any) {
CHECK(name_exists(db, ver, name, &flag)); CHECK(name_exists(db, ver, name, &flag));
if (! flag) { if (! flag) {
FAILMSG(DNS_R_NXDOMAIN, FAILC(DNS_R_NXDOMAIN,
"'name in use' prereq " "'name in use' prerequisite "
"not satisfied"); "not satisfied");
} }
} else { } else {
@@ -1833,20 +1883,21 @@ update_action(isc_task_t *task, isc_event_t *event)
rdata.type, covers, &flag)); rdata.type, covers, &flag));
if (! flag) { if (! flag) {
/* RRset does not exist. */ /* RRset does not exist. */
FAILMSG(DNS_R_NXRRSET, FAILC(DNS_R_NXRRSET,
"'rrset exists (value independent)' " "'rrset exists (value independent)' "
"prereq not satisfied"); "prerequisite not satisfied");
} }
} }
} else if (update_class == dns_rdataclass_none) { } else if (update_class == dns_rdataclass_none) {
if (rdata.length != 0) if (rdata.length != 0)
FAILMSG(DNS_R_FORMERR, FAILC(DNS_R_FORMERR,
"prereq data not empty"); "class NONE prerequisite"
"RDATA is not empty");
if (rdata.type == dns_rdatatype_any) { if (rdata.type == dns_rdatatype_any) {
CHECK(name_exists(db, ver, name, &flag)); CHECK(name_exists(db, ver, name, &flag));
if (flag) { if (flag) {
FAILMSG(DNS_R_YXDOMAIN, FAILC(DNS_R_YXDOMAIN,
"'name not in use' prereq " "'name not in use' prerequisite "
"not satisfied"); "not satisfied");
} }
} else { } else {
@@ -1854,9 +1905,9 @@ update_action(isc_task_t *task, isc_event_t *event)
rdata.type, covers, &flag)); rdata.type, covers, &flag));
if (flag) { if (flag) {
/* RRset exists. */ /* RRset exists. */
FAILMSG(DNS_R_YXRRSET, FAILC(DNS_R_YXRRSET,
"'rrset does not exist' " "'rrset does not exist' "
"prereq not satisfied"); "prerequisite not satisfied");
} }
} }
} else if (update_class == zoneclass) { } else if (update_class == zoneclass) {
@@ -1866,10 +1917,10 @@ update_action(isc_task_t *task, isc_event_t *event)
UNEXPECTED_ERROR(__FILE__, __LINE__, UNEXPECTED_ERROR(__FILE__, __LINE__,
"temp entry creation failed: %s", "temp entry creation failed: %s",
dns_result_totext(result)); dns_result_totext(result));
FAIL (DNS_R_UNEXPECTED); FAIL(DNS_R_UNEXPECTED);
} }
} else { } else {
FAILMSG(DNS_R_FORMERR, "malformed prereq"); FAILC(DNS_R_FORMERR, "malformed prerequisite");
} }
} }
if (result != DNS_R_NOMORE) if (result != DNS_R_NOMORE)
@@ -1881,10 +1932,10 @@ update_action(isc_task_t *task, isc_event_t *event)
*/ */
result = temp_check(mctx, &temp, db, ver); result = temp_check(mctx, &temp, db, ver);
if (result != DNS_R_SUCCESS) if (result != DNS_R_SUCCESS)
FAILMSG(result, "'rrset exists (value dependent)' prereq " FAILC(result, "'RRset exists (value dependent)' "
"not satisfied"); "prerequisite not satisfied");
printf("prereqs ok\n"); isc_log_write(UPDATE_DEBUG_LOGARGS, "prerequisites are OK");
/* XXX Check Requestor's Permissions Here */ /* XXX Check Requestor's Permissions Here */
@@ -1902,7 +1953,7 @@ update_action(isc_task_t *task, isc_event_t *event)
&name, &rdata, &covers, &ttl, &update_class); &name, &rdata, &covers, &ttl, &update_class);
if (! dns_name_issubdomain(name, zonename)) if (! dns_name_issubdomain(name, zonename))
FAILMSG(DNS_R_NOTZONE, FAILC(DNS_R_NOTZONE,
"update RR is outside zone"); "update RR is outside zone");
if (update_class == zoneclass) { if (update_class == zoneclass) {
/* /*
@@ -1911,22 +1962,24 @@ update_action(isc_task_t *task, isc_event_t *event)
* "or any other QUERY metatype" * "or any other QUERY metatype"
*/ */
if (dns_rdatatype_ismeta(rdata.type)) { if (dns_rdatatype_ismeta(rdata.type)) {
FAILMSG(DNS_R_FORMERR, FAILC(DNS_R_FORMERR,
"meta-RR in update"); "meta-RR in update");
} }
} else if (update_class == dns_rdataclass_any) { } else if (update_class == dns_rdataclass_any) {
if (ttl != 0 || rdata.length != 0 || if (ttl != 0 || rdata.length != 0 ||
(dns_rdatatype_ismeta(rdata.type) && (dns_rdatatype_ismeta(rdata.type) &&
rdata.type != dns_rdatatype_any)) rdata.type != dns_rdatatype_any))
FAILMSG(DNS_R_FORMERR, FAILC(DNS_R_FORMERR,
"meta-RR in update"); "meta-RR in update");
} else if (update_class == dns_rdataclass_none) { } else if (update_class == dns_rdataclass_none) {
if (ttl != 0 || if (ttl != 0 ||
dns_rdatatype_ismeta(rdata.type)) dns_rdatatype_ismeta(rdata.type))
FAILMSG(DNS_R_FORMERR, FAILC(DNS_R_FORMERR,
"meta-RR in update"); "meta-RR in update");
} else { } else {
printf("update RR has incorrect class %d\n", isc_log_write(ns_g_lctx, NS_LOGCATEGORY_UPDATE,
NS_LOGMODULE_UPDATE, ISC_LOG_WARNING,
"update RR has incorrect class %d",
update_class); update_class);
FAIL(DNS_R_FORMERR); FAIL(DNS_R_FORMERR);
} }
@@ -1936,7 +1989,7 @@ update_action(isc_task_t *task, isc_event_t *event)
* is forbidden from updating NXT records." * is forbidden from updating NXT records."
*/ */
if (dns_db_issecure(db) && rdata.type == dns_rdatatype_nxt) { if (dns_db_issecure(db) && rdata.type == dns_rdatatype_nxt) {
FAILMSG(DNS_R_REFUSED, FAILC(DNS_R_REFUSED,
"explicit NXT updates are not allowed " "explicit NXT updates are not allowed "
"in secure zones"); "in secure zones");
} }
@@ -1944,7 +1997,7 @@ update_action(isc_task_t *task, isc_event_t *event)
if (result != DNS_R_NOMORE) if (result != DNS_R_NOMORE)
FAIL(result); FAIL(result);
printf("prescan ok\n"); isc_log_write(UPDATE_DEBUG_LOGARGS, "update section prescan OK");
/* Process the Update Section. */ /* Process the Update Section. */
@@ -1967,9 +2020,10 @@ update_action(isc_task_t *task, isc_event_t *event)
name, name,
&flag)); &flag));
if (flag) { if (flag) {
printf("attempt to add cname " isc_log_write(UPDATE_PROTOCOL_LOGARGS,
"alongside non-cname " "attempt to add CNAME "
"ignored\n"); "alongside non-CNAME "
"ignored");
continue; continue;
} }
} else { } else {
@@ -1979,8 +2033,9 @@ update_action(isc_task_t *task, isc_event_t *event)
if (flag && if (flag &&
! dns_rdatatype_isdnssec(rdata.type)) ! dns_rdatatype_isdnssec(rdata.type))
{ {
printf("attempt to add non-cname " isc_log_write(UPDATE_PROTOCOL_LOGARGS,
"alongside cname ignored\n"); "attempt to add non-CNAME "
"alongside CNAME ignored");
continue; continue;
} }
} }
@@ -1990,15 +2045,18 @@ update_action(isc_task_t *task, isc_event_t *event)
dns_rdatatype_soa, 0, dns_rdatatype_soa, 0,
&flag)); &flag));
if (! flag) { if (! flag) {
printf("attempt to create extra SOA " isc_log_write(UPDATE_PROTOCOL_LOGARGS,
"ignored\n"); "attempt to create 2nd "
"SOA ignored");
continue; continue;
} }
CHECK(check_soa_increment(db, ver, &rdata, CHECK(check_soa_increment(db, ver, &rdata,
&ok)); &ok));
if (! ok) { if (! ok) {
printf("attempt to decrement SOA " isc_log_write(UPDATE_PROTOCOL_LOGARGS,
"serial ignored\n"); "SOA update failed to "
"increment serial, "
"ignoring it");
continue; continue;
} }
soa_serial_changed = ISC_TRUE; soa_serial_changed = ISC_TRUE;
@@ -2012,7 +2070,8 @@ update_action(isc_task_t *task, isc_event_t *event)
rdata.type, covers, &rdata, rdata.type, covers, &rdata,
&flag)); &flag));
if (! flag) { if (! flag) {
printf("add an RR\n"); isc_log_write(UPDATE_PROTOCOL_LOGARGS,
"adding an RR");
CHECK(delete_if(replaces_p, db, ver, name, CHECK(delete_if(replaces_p, db, ver, name,
rdata.type, covers, &rdata, rdata.type, covers, &rdata,
&diff)); &diff));
@@ -2022,11 +2081,14 @@ update_action(isc_task_t *task, isc_event_t *event)
if (result != DNS_R_SUCCESS) if (result != DNS_R_SUCCESS)
FAIL(result); FAIL(result);
} else { } else {
printf("attempt to add existing RR ignored\n"); isc_log_write(UPDATE_PROTOCOL_LOGARGS,
"attempt to add existing RR "
"ignored");
} }
} else if (update_class == dns_rdataclass_any) { } else if (update_class == dns_rdataclass_any) {
if (rdata.type == dns_rdatatype_any) { if (rdata.type == dns_rdatatype_any) {
printf("delete all rrsets from a name\n"); isc_log_write(UPDATE_PROTOCOL_LOGARGS,
"delete all rrsets from a name");
if (dns_name_equal(name, zonename)) { if (dns_name_equal(name, zonename)) {
CHECK(delete_if(type_not_soa_nor_ns_p, CHECK(delete_if(type_not_soa_nor_ns_p,
db, ver, name, db, ver, name,
@@ -2040,18 +2102,21 @@ update_action(isc_task_t *task, isc_event_t *event)
} else if (dns_name_equal(name, zonename) && } else if (dns_name_equal(name, zonename) &&
(rdata.type == dns_rdatatype_soa || (rdata.type == dns_rdatatype_soa ||
rdata.type == dns_rdatatype_ns)) { rdata.type == dns_rdatatype_ns)) {
printf("attempt to delete all SOA or NS " isc_log_write(UPDATE_PROTOCOL_LOGARGS,
"records ignored\n"); "attempt to delete all SOA "
"or NS records ignored");
continue; continue;
} else { } else {
printf("delete an rrset\n"); isc_log_write(UPDATE_PROTOCOL_LOGARGS,
"deleting an rrset");
CHECK(delete_if(true_p, db, ver, name, CHECK(delete_if(true_p, db, ver, name,
rdata.type, covers, &rdata, rdata.type, covers, &rdata,
&diff)); &diff));
} }
} else if (update_class == dns_rdataclass_none) { } else if (update_class == dns_rdataclass_none) {
if (rdata.type == dns_rdatatype_soa) { if (rdata.type == dns_rdatatype_soa) {
printf("attempt to delete SOA ignored\n"); isc_log_write(UPDATE_PROTOCOL_LOGARGS,
"attempt to delete SOA ignored");
continue; continue;
} }
if (rdata.type == dns_rdatatype_ns) { if (rdata.type == dns_rdatatype_ns) {
@@ -2059,12 +2124,14 @@ update_action(isc_task_t *task, isc_event_t *event)
CHECK(rr_count(db, ver, name, CHECK(rr_count(db, ver, name,
dns_rdatatype_ns, 0, &count)); dns_rdatatype_ns, 0, &count));
if (count == 1) { if (count == 1) {
printf("attempt to delete last " isc_log_write(UPDATE_PROTOCOL_LOGARGS,
"NS ignored\n"); "attempt to delete last "
"NS ignored");
continue; continue;
} }
} }
printf("delete an RR\n"); isc_log_write(UPDATE_PROTOCOL_LOGARGS,
"deleting an RR");
CHECK(delete_if(rr_equal_p, db, ver, name, CHECK(delete_if(rr_equal_p, db, ver, name,
rdata.type, covers, &rdata, &diff)); rdata.type, covers, &rdata, &diff));
} }
@@ -2091,21 +2158,28 @@ update_action(isc_task_t *task, isc_event_t *event)
if (dns_db_issecure(db)) { if (dns_db_issecure(db)) {
result = update_signatures(mctx, db, result = update_signatures(mctx, db,
oldver, ver, &diff); oldver, ver, &diff);
CHECKMSG(result, "signature update failed"); if (result != DNS_R_SUCCESS) {
isc_log_write(ns_g_lctx, NS_LOGCATEGORY_UPDATE,
NS_LOGMODULE_UPDATE,
ISC_LOG_ERROR,
"SIG/NXT update failed: %s",
isc_result_totext(result));
goto failure;
}
} }
printf("write journal\n"); isc_log_write(UPDATE_DEBUG_LOGARGS, "writing journal");
journal = NULL; journal = NULL;
result = dns_journal_open(mctx, dns_zone_getixfrlog(zone), result = dns_journal_open(mctx, dns_zone_getixfrlog(zone),
ISC_TRUE, &journal); ISC_TRUE, &journal);
if (result != DNS_R_SUCCESS) if (result != DNS_R_SUCCESS)
FAILMSG(result, "journal open failed"); FAILS(result, "journal open failed");
result = dns_journal_write_transaction(journal, &diff); result = dns_journal_write_transaction(journal, &diff);
if (result != DNS_R_SUCCESS) { if (result != DNS_R_SUCCESS) {
dns_journal_destroy(&journal); dns_journal_destroy(&journal);
FAILMSG(result, "journal write failed"); FAILS(result, "journal write failed");
} }
dns_journal_destroy(&journal); dns_journal_destroy(&journal);
@@ -2116,16 +2190,16 @@ update_action(isc_task_t *task, isc_event_t *event)
* to handle databases that need two-phase commit, but this * to handle databases that need two-phase commit, but this
* isn't a priority. * isn't a priority.
*/ */
printf("commit\n"); isc_log_write(UPDATE_DEBUG_LOGARGS, "committing update transaction");
dns_db_closeversion(db, &ver, ISC_TRUE); dns_db_closeversion(db, &ver, ISC_TRUE);
result = DNS_R_SUCCESS; result = DNS_R_SUCCESS;
goto common; goto common;
failure: failure:
printf("update failed: %s\n", dns_result_totext(result)); /* The reason for failure should have been logged at this point. */
if (ver != NULL) { if (ver != NULL) {
printf("rollback\n"); isc_log_write(UPDATE_DEBUG_LOGARGS,
"rolling back");
dns_db_closeversion(db, &ver, ISC_FALSE); dns_db_closeversion(db, &ver, ISC_FALSE);
} }