d25afd60ee2286cb171c4960a790f3d7041b6f85Bob Halley

ab023a65562e62b85a824509d829b6fad87e00b1Rob Austein

1a69a1a78cfaa86f3b68bbc965232b7876d4da2aDavid Lawrence

6cf369f528c4acd8182eada41ad83b8d97623db8Mark Andrews#if 0

364a82f7c25b62967678027043425201a5e5171aBob Halley#define DUMP_ADB_AFTER_CLEANING

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley#endif

9192e92f7d0f4e78385a1d5f9b6607cc5bf0e42aBob Halley

3f8be559f0871022c78a229bad0eb09560b90909Evan Hunt#include <config.h>

6d5032f9a23fe1197610114983c9938ac419b20cBrian Wellington

6d5032f9a23fe1197610114983c9938ac419b20cBrian Wellington#include <limits.h>

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

1a69a1a78cfaa86f3b68bbc965232b7876d4da2aDavid Lawrence#include <isc/mutexblock.h>

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley#include <isc/netaddr.h>

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley#include <isc/random.h>

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley#include <isc/string.h> /* Required for HP/UX (and others?) */

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley#include <isc/task.h>

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley#include <isc/timer.h>

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley#include <isc/util.h>

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley#include <dns/adb.h>

cee7525336d4710a64368875d92eb439d4d3efb1Mark Andrews#include <dns/db.h>

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley#include <dns/events.h>

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley#include <dns/log.h>

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley#include <dns/rdata.h>

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley#include <dns/rdataset.h>

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley#include <dns/rdatastruct.h>

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley#include <dns/resolver.h>

ecb6c5782ea248307e86c4bceac6c371d27576a6David Lawrence#include <dns/result.h>

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley#define DNS_ADB_MAGIC ISC_MAGIC('D', 'a', 'd', 'b')

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley#define DNS_ADB_VALID(x) ISC_MAGIC_VALID(x, DNS_ADB_MAGIC)

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley#define DNS_ADBNAME_MAGIC ISC_MAGIC('a', 'd', 'b', 'N')

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley#define DNS_ADBNAME_VALID(x) ISC_MAGIC_VALID(x, DNS_ADBNAME_MAGIC)

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley#define DNS_ADBNAMEHOOK_MAGIC ISC_MAGIC('a', 'd', 'N', 'H')

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley#define DNS_ADBNAMEHOOK_VALID(x) ISC_MAGIC_VALID(x, DNS_ADBNAMEHOOK_MAGIC)

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley#define DNS_ADBZONEINFO_MAGIC ISC_MAGIC('a', 'd', 'b', 'Z')

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley#define DNS_ADBZONEINFO_VALID(x) ISC_MAGIC_VALID(x, DNS_ADBZONEINFO_MAGIC)

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley#define DNS_ADBENTRY_MAGIC ISC_MAGIC('a', 'd', 'b', 'E')

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley#define DNS_ADBENTRY_VALID(x) ISC_MAGIC_VALID(x, DNS_ADBENTRY_MAGIC)

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley#define DNS_ADBFETCH_MAGIC ISC_MAGIC('a', 'd', 'F', '4')

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley#define DNS_ADBFETCH_VALID(x) ISC_MAGIC_VALID(x, DNS_ADBFETCH_MAGIC)

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley#define DNS_ADBFETCH6_MAGIC ISC_MAGIC('a', 'd', 'F', '6')

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley#define DNS_ADBFETCH6_VALID(x) ISC_MAGIC_VALID(x, DNS_ADBFETCH6_MAGIC)

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley#define NBUCKETS 1009 /* how many buckets for names/addrs */

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley#define ADB_CACHE_MINIMUM 10 /* seconds */

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley#define ADB_CACHE_MAXIMUM 86400 /* seconds (86400 = 24 hours) */

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley#define ADB_ENTRY_WINDOW 1800 /* seconds */

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley#define CLEAN_PERIOD 3600

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley#define CLEAN_SECONDS 30

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley#define CLEAN_BUCKETS ((NBUCKETS * CLEAN_SECONDS) / CLEAN_PERIOD)

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley#define FREE_ITEMS 64 /* free count for memory pools */

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley#define FILL_COUNT 16 /* fill count for memory pools */

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley#define DNS_ADB_INVALIDBUCKET (-1) /* invalid bucket address */

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley#define DNS_ADB_MINADBSIZE (1024*1024) /* 1 Megabyte */

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halleytypedef ISC_LIST(dns_adbname_t) dns_adbnamelist_t;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halleytypedef struct dns_adbnamehook dns_adbnamehook_t;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halleytypedef ISC_LIST(dns_adbnamehook_t) dns_adbnamehooklist_t;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halleytypedef struct dns_adbzoneinfo dns_adbzoneinfo_t;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halleytypedef ISC_LIST(dns_adbentry_t) dns_adbentrylist_t;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halleytypedef struct dns_adbfetch dns_adbfetch_t;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halleytypedef struct dns_adbfetch6 dns_adbfetch6_t;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

577179503f2eb7695ec668d8eeb41889a150e28fBob Halleystruct dns_adb {

577179503f2eb7695ec668d8eeb41889a150e28fBob Halley unsigned int magic;

577179503f2eb7695ec668d8eeb41889a150e28fBob Halley

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley isc_mutex_t lock;

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley isc_mutex_t reflock; /* Covers irefcnt, erefcnt */

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley isc_mem_t *mctx;

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley dns_view_t *view;

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley isc_timermgr_t *timermgr;

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley isc_timer_t *timer;

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley isc_taskmgr_t *taskmgr;

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley isc_task_t *task;

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley isc_boolean_t overmem;

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley isc_interval_t tick_interval;

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence int next_cleanbucket;

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley unsigned int irefcnt;

ab023a65562e62b85a824509d829b6fad87e00b1Rob Austein unsigned int erefcnt;

70fdfcd1fa7ebd059deffa9a2cecc29df96dfe52Bob Halley

70fdfcd1fa7ebd059deffa9a2cecc29df96dfe52Bob Halley isc_mutex_t mplock;

70fdfcd1fa7ebd059deffa9a2cecc29df96dfe52Bob Halley isc_mempool_t *nmp; /* dns_adbname_t */

70fdfcd1fa7ebd059deffa9a2cecc29df96dfe52Bob Halley isc_mempool_t *nhmp; /* dns_adbnamehook_t */

70fdfcd1fa7ebd059deffa9a2cecc29df96dfe52Bob Halley isc_mempool_t *zimp; /* dns_adbzoneinfo_t */

70fdfcd1fa7ebd059deffa9a2cecc29df96dfe52Bob Halley isc_mempool_t *emp; /* dns_adbentry_t */

70fdfcd1fa7ebd059deffa9a2cecc29df96dfe52Bob Halley isc_mempool_t *ahmp; /* dns_adbfind_t */

70fdfcd1fa7ebd059deffa9a2cecc29df96dfe52Bob Halley isc_mempool_t *aimp; /* dns_adbaddrinfo_t */

70fdfcd1fa7ebd059deffa9a2cecc29df96dfe52Bob Halley isc_mempool_t *afmp; /* dns_adbfetch_t */

70fdfcd1fa7ebd059deffa9a2cecc29df96dfe52Bob Halley

70fdfcd1fa7ebd059deffa9a2cecc29df96dfe52Bob Halley /*

08c8a934ceb2dfc6a5ebfd3be4ba5a1b3243bc73Bob Halley dns_adbnamelist_t names[NBUCKETS];

08c8a934ceb2dfc6a5ebfd3be4ba5a1b3243bc73Bob Halley isc_mutex_t namelocks[NBUCKETS];

08c8a934ceb2dfc6a5ebfd3be4ba5a1b3243bc73Bob Halley isc_boolean_t name_sd[NBUCKETS];

08c8a934ceb2dfc6a5ebfd3be4ba5a1b3243bc73Bob Halley unsigned int name_refcnt[NBUCKETS];

ab023a65562e62b85a824509d829b6fad87e00b1Rob Austein

4755b174df8221dff7e872f21d42b3572a74bf2fAndreas Gustafsson /*

4755b174df8221dff7e872f21d42b3572a74bf2fAndreas Gustafsson dns_adbentrylist_t entries[NBUCKETS];

4755b174df8221dff7e872f21d42b3572a74bf2fAndreas Gustafsson isc_mutex_t entrylocks[NBUCKETS];

e672951ed28b2e9cc7a19c3d7fa4a258382f981cAutomatic Updater isc_boolean_t entry_sd[NBUCKETS]; /* shutting down */

4755b174df8221dff7e872f21d42b3572a74bf2fAndreas Gustafsson unsigned int entry_refcnt[NBUCKETS];

4755b174df8221dff7e872f21d42b3572a74bf2fAndreas Gustafsson

4755b174df8221dff7e872f21d42b3572a74bf2fAndreas Gustafsson isc_event_t cevent;

4755b174df8221dff7e872f21d42b3572a74bf2fAndreas Gustafsson isc_boolean_t cevent_sent;

4755b174df8221dff7e872f21d42b3572a74bf2fAndreas Gustafsson isc_boolean_t shutting_down;

4755b174df8221dff7e872f21d42b3572a74bf2fAndreas Gustafsson isc_eventlist_t whenshutdown;

4755b174df8221dff7e872f21d42b3572a74bf2fAndreas Gustafsson};

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence

4755b174df8221dff7e872f21d42b3572a74bf2fAndreas Gustafsson

4755b174df8221dff7e872f21d42b3572a74bf2fAndreas Gustafssonstruct dns_adbname {

4755b174df8221dff7e872f21d42b3572a74bf2fAndreas Gustafsson unsigned int magic;

4755b174df8221dff7e872f21d42b3572a74bf2fAndreas Gustafsson dns_name_t name;

4755b174df8221dff7e872f21d42b3572a74bf2fAndreas Gustafsson dns_adb_t *adb;

4755b174df8221dff7e872f21d42b3572a74bf2fAndreas Gustafsson unsigned int partial_result;

4755b174df8221dff7e872f21d42b3572a74bf2fAndreas Gustafsson unsigned int flags;

4755b174df8221dff7e872f21d42b3572a74bf2fAndreas Gustafsson int lock_bucket;

4755b174df8221dff7e872f21d42b3572a74bf2fAndreas Gustafsson dns_name_t target;

4755b174df8221dff7e872f21d42b3572a74bf2fAndreas Gustafsson isc_stdtime_t expire_target;

4755b174df8221dff7e872f21d42b3572a74bf2fAndreas Gustafsson isc_stdtime_t expire_v4;

4755b174df8221dff7e872f21d42b3572a74bf2fAndreas Gustafsson isc_stdtime_t expire_v6;

5f120ce962b03e4dcf6f1974b9b896f0fa7cacb0Bob Halley unsigned int chains;

5f120ce962b03e4dcf6f1974b9b896f0fa7cacb0Bob Halley dns_adbnamehooklist_t v4;

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence dns_adbnamehooklist_t v6;

e61793f0865117ad87a19d6e245bea8f3b712d1bDanny Mayer dns_adbfetch_t *fetch_a;

5f120ce962b03e4dcf6f1974b9b896f0fa7cacb0Bob Halley dns_adbfetch_t *fetch_aaaa;

d6fe7ba94969ee51a3f4298a735fbc6e11691ad8Mark Andrews unsigned int fetch_err;

d6fe7ba94969ee51a3f4298a735fbc6e11691ad8Mark Andrews unsigned int fetch6_err;

d6fe7ba94969ee51a3f4298a735fbc6e11691ad8Mark Andrews dns_adbfindlist_t finds;

6cf369f528c4acd8182eada41ad83b8d97623db8Mark Andrews ISC_LINK(dns_adbname_t) plink;

6cf369f528c4acd8182eada41ad83b8d97623db8Mark Andrews};

6cf369f528c4acd8182eada41ad83b8d97623db8Mark Andrews

6cf369f528c4acd8182eada41ad83b8d97623db8Mark Andrewsstruct dns_adbfetch {

ed6ca94ad75353d5344e2a456e7a8beb480a351fMark Andrews unsigned int magic;

ed6ca94ad75353d5344e2a456e7a8beb480a351fMark Andrews dns_adbnamehook_t *namehook;

ed6ca94ad75353d5344e2a456e7a8beb480a351fMark Andrews dns_adbentry_t *entry;

6cf369f528c4acd8182eada41ad83b8d97623db8Mark Andrews dns_fetch_t *fetch;

030aafe4114875ff659fcf83db6d05846470fb3eMark Andrews dns_rdataset_t rdataset;

6cf369f528c4acd8182eada41ad83b8d97623db8Mark Andrews};

6cf369f528c4acd8182eada41ad83b8d97623db8Mark Andrews

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halleystruct dns_adbnamehook {

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley unsigned int magic;

70fdfcd1fa7ebd059deffa9a2cecc29df96dfe52Bob Halley dns_adbentry_t *entry;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley ISC_LINK(dns_adbnamehook_t) plink;

6d5032f9a23fe1197610114983c9938ac419b20cBrian Wellington};

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley

da527e4ff6a013364826637963e7ac372e024f33David Lawrencestruct dns_adbzoneinfo {

da527e4ff6a013364826637963e7ac372e024f33David Lawrence unsigned int magic;

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley dns_name_t zone;

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley isc_stdtime_t lame_timer;

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley ISC_LINK(dns_adbzoneinfo_t) plink;

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley};

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley

c5839c39bd07c9dd3d4cd598035deb0537098475Bob Halleystruct dns_adbentry {

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley unsigned int magic;

ce3761f64d3d734cc94605026985898900ecc474Bob Halley

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley int lock_bucket;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley unsigned int refcnt;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

ce3761f64d3d734cc94605026985898900ecc474Bob Halley unsigned int flags;

ce3761f64d3d734cc94605026985898900ecc474Bob Halley unsigned int srtt;

ce3761f64d3d734cc94605026985898900ecc474Bob Halley isc_sockaddr_t sockaddr;

ee03a00244edc6c823ea11bed16437865b395d5dAndreas Gustafsson

ce3761f64d3d734cc94605026985898900ecc474Bob Halley isc_stdtime_t expires;

ce3761f64d3d734cc94605026985898900ecc474Bob Halley /*

ce3761f64d3d734cc94605026985898900ecc474Bob Halley

ce3761f64d3d734cc94605026985898900ecc474Bob Halley ISC_LIST(dns_adbzoneinfo_t) zoneinfo;

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence ISC_LINK(dns_adbentry_t) plink;

ce3761f64d3d734cc94605026985898900ecc474Bob Halley};

ce3761f64d3d734cc94605026985898900ecc474Bob Halley

ce3761f64d3d734cc94605026985898900ecc474Bob Halleystatic inline dns_adbname_t *new_adbname(dns_adb_t *, dns_name_t *);

ce3761f64d3d734cc94605026985898900ecc474Bob Halleystatic inline void free_adbname(dns_adb_t *, dns_adbname_t **);

ce3761f64d3d734cc94605026985898900ecc474Bob Halleystatic inline dns_adbnamehook_t *new_adbnamehook(dns_adb_t *,

ce3761f64d3d734cc94605026985898900ecc474Bob Halley dns_adbentry_t *);

ce3761f64d3d734cc94605026985898900ecc474Bob Halleystatic inline void free_adbnamehook(dns_adb_t *, dns_adbnamehook_t **);

ce3761f64d3d734cc94605026985898900ecc474Bob Halleystatic inline dns_adbzoneinfo_t *new_adbzoneinfo(dns_adb_t *, dns_name_t *);

ce3761f64d3d734cc94605026985898900ecc474Bob Halleystatic inline void free_adbzoneinfo(dns_adb_t *, dns_adbzoneinfo_t **);

38d2d0e9326a2f70b5893302b89a26978b539405Bob Halleystatic inline dns_adbentry_t *new_adbentry(dns_adb_t *);

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrencestatic inline void free_adbentry(dns_adb_t *, dns_adbentry_t **);

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halleystatic inline dns_adbfind_t *new_adbfind(dns_adb_t *);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halleystatic inline isc_boolean_t free_adbfind(dns_adb_t *, dns_adbfind_t **);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halleystatic inline dns_adbaddrinfo_t *new_adbaddrinfo(dns_adb_t *, dns_adbentry_t *,

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley in_port_t);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halleystatic inline dns_adbfetch_t *new_adbfetch(dns_adb_t *);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halleystatic inline void free_adbfetch(dns_adb_t *, dns_adbfetch_t **);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halleystatic inline dns_adbname_t *find_name_and_lock(dns_adb_t *, dns_name_t *,

c5839c39bd07c9dd3d4cd598035deb0537098475Bob Halley unsigned int, int *);

38d2d0e9326a2f70b5893302b89a26978b539405Bob Halleystatic inline dns_adbentry_t *find_entry_and_lock(dns_adb_t *,

38d2d0e9326a2f70b5893302b89a26978b539405Bob Halley isc_sockaddr_t *, int *);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halleystatic void dump_adb(dns_adb_t *, FILE *, isc_boolean_t debug);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halleystatic void print_dns_name(FILE *, dns_name_t *);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrewsstatic void print_namehook_list(FILE *, const char *legend,

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews dns_adbnamehooklist_t *list,

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews isc_boolean_t debug,

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews isc_stdtime_t now);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrewsstatic void print_find_list(FILE *, dns_adbname_t *);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrewsstatic void print_fetch_list(FILE *, dns_adbname_t *);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrewsstatic inline isc_boolean_t dec_adb_irefcnt(dns_adb_t *);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrewsstatic inline void inc_adb_irefcnt(dns_adb_t *);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrewsstatic inline void inc_adb_erefcnt(dns_adb_t *);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrewsstatic inline void inc_entry_refcnt(dns_adb_t *, dns_adbentry_t *,

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews isc_boolean_t);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrewsstatic inline isc_boolean_t dec_entry_refcnt(dns_adb_t *, dns_adbentry_t *,

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews isc_boolean_t);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrewsstatic inline void violate_locking_hierarchy(isc_mutex_t *, isc_mutex_t *);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrewsstatic isc_boolean_t clean_namehooks(dns_adb_t *, dns_adbnamehooklist_t *);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrewsstatic void clean_target(dns_adb_t *, dns_name_t *);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrewsstatic void clean_finds_at_name(dns_adbname_t *, isc_eventtype_t,

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews unsigned int);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrewsstatic isc_boolean_t check_expire_namehooks(dns_adbname_t *, isc_stdtime_t,

e672951ed28b2e9cc7a19c3d7fa4a258382f981cAutomatic Updater isc_boolean_t);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrewsstatic void cancel_fetches_at_name(dns_adbname_t *);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrewsstatic isc_result_t dbfind_name(dns_adbname_t *, isc_stdtime_t,

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews dns_rdatatype_t);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrewsstatic isc_result_t fetch_name(dns_adbname_t *, isc_boolean_t,

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews dns_rdatatype_t);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrewsstatic inline void check_exit(dns_adb_t *);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrewsstatic void timer_cleanup(isc_task_t *, isc_event_t *);

86548554f6180bbe051c8cd8f03c93fc9b6a7825Mark Andrewsstatic void destroy(dns_adb_t *);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrewsstatic isc_boolean_t shutdown_names(dns_adb_t *);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrewsstatic isc_boolean_t shutdown_entries(dns_adb_t *);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrewsstatic inline void link_name(dns_adb_t *, int, dns_adbname_t *);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrewsstatic inline isc_boolean_t unlink_name(dns_adb_t *, dns_adbname_t *);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrewsstatic inline void link_entry(dns_adb_t *, int, dns_adbentry_t *);

e672951ed28b2e9cc7a19c3d7fa4a258382f981cAutomatic Updaterstatic inline isc_boolean_t unlink_entry(dns_adb_t *, dns_adbentry_t *);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrewsstatic isc_boolean_t kill_name(dns_adbname_t **, isc_eventtype_t);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrewsstatic void water(void *arg, int mark);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define FIND_EVENT_SENT 0x40000000

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define FIND_EVENT_FREED 0x80000000

86548554f6180bbe051c8cd8f03c93fc9b6a7825Mark Andrews#define FIND_EVENTSENT(h) (((h)->flags & FIND_EVENT_SENT) != 0)

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define FIND_EVENTFREED(h) (((h)->flags & FIND_EVENT_FREED) != 0)

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define NAME_NEEDS_POKE 0x80000000

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define NAME_IS_DEAD 0x40000000

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define NAME_HINT_OK DNS_ADBFIND_HINTOK

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define NAME_GLUE_OK DNS_ADBFIND_GLUEOK

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define NAME_STARTATZONE DNS_ADBFIND_STARTATZONE

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define NAME_DEAD(n) (((n)->flags & NAME_IS_DEAD) != 0)

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define NAME_NEEDSPOKE(n) (((n)->flags & NAME_NEEDS_POKE) != 0)

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define NAME_GLUEOK(n) (((n)->flags & NAME_GLUE_OK) != 0)

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define NAME_HINTOK(n) (((n)->flags & NAME_HINT_OK) != 0)

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define NAME_HAS_V4(n) (!ISC_LIST_EMPTY((n)->v4))

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define NAME_HAS_V6(n) (!ISC_LIST_EMPTY((n)->v6))

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define NAME_HAS_ADDRS(n) (NAME_HAS_V4(n) || NAME_HAS_V6(n))

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define NAME_FETCH_A(n) ((n)->fetch_a != NULL)

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define NAME_FETCH_AAAA(n) ((n)->fetch_aaaa != NULL)

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define NAME_FETCH_V4(n) (NAME_FETCH_A(n))

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define NAME_FETCH_V6(n) (NAME_FETCH_AAAA(n))

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define NAME_FETCH(n) (NAME_FETCH_V4(n) || NAME_FETCH_V6(n))

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define FIND_WANTEVENT(fn) (((fn)->options & DNS_ADBFIND_WANTEVENT) != 0)

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define FIND_WANTEMPTYEVENT(fn) (((fn)->options & DNS_ADBFIND_EMPTYEVENT) != 0)

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define FIND_AVOIDFETCHES(fn) (((fn)->options & DNS_ADBFIND_AVOIDFETCHES) \

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews != 0)

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define FIND_STARTATZONE(fn) (((fn)->options & DNS_ADBFIND_STARTATZONE) \

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews != 0)

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define FIND_HINTOK(fn) (((fn)->options & DNS_ADBFIND_HINTOK) != 0)

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define FIND_GLUEOK(fn) (((fn)->options & DNS_ADBFIND_GLUEOK) != 0)

86548554f6180bbe051c8cd8f03c93fc9b6a7825Mark Andrews#define FIND_HAS_ADDRS(fn) (!ISC_LIST_EMPTY((fn)->list))

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define FIND_RETURNLAME(fn) (((fn)->options & DNS_ADBFIND_RETURNLAME) != 0)

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define WANT_INET(x) (((x) & DNS_ADBFIND_INET) != 0)

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define WANT_INET6(x) (((x) & DNS_ADBFIND_INET6) != 0)

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define EXPIRE_OK(exp, now) ((exp == INT_MAX) || (exp < now))

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews

00d81794884f1eee59ca058a292f2d1e50d9547cBob Halley#define GLUE_OK(nf, o) (!NAME_GLUEOK(nf) || (((o) & DNS_ADBFIND_GLUEOK) != 0))

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence#define HINT_OK(nf, o) (!NAME_HINTOK(nf) || (((o) & DNS_ADBFIND_HINTOK) != 0))

00d81794884f1eee59ca058a292f2d1e50d9547cBob Halley#define GLUEHINT_OK(nf, o) (GLUE_OK(nf, o) || HINT_OK(nf, o))

00d81794884f1eee59ca058a292f2d1e50d9547cBob Halley#define STARTATZONE_MATCHES(nf, o) (((nf)->flags & NAME_STARTATZONE) == \

00d81794884f1eee59ca058a292f2d1e50d9547cBob Halley ((o) & DNS_ADBFIND_STARTATZONE))

00d81794884f1eee59ca058a292f2d1e50d9547cBob Halley

00d81794884f1eee59ca058a292f2d1e50d9547cBob Halley#define ENTER_LEVEL ISC_LOG_DEBUG(50)

00d81794884f1eee59ca058a292f2d1e50d9547cBob Halley#define EXIT_LEVEL ENTER_LEVEL

00d81794884f1eee59ca058a292f2d1e50d9547cBob Halley#define CLEAN_LEVEL ISC_LOG_DEBUG(100)

00d81794884f1eee59ca058a292f2d1e50d9547cBob Halley#define DEF_LEVEL ISC_LOG_DEBUG(5)

00d81794884f1eee59ca058a292f2d1e50d9547cBob Halley#define NCACHE_LEVEL ISC_LOG_DEBUG(20)

00d81794884f1eee59ca058a292f2d1e50d9547cBob Halley

00d81794884f1eee59ca058a292f2d1e50d9547cBob Halley#define NCACHE_RESULT(r) ((r) == DNS_R_NCACHENXDOMAIN || \

00d81794884f1eee59ca058a292f2d1e50d9547cBob Halley (r) == DNS_R_NCACHENXRRSET)

00d81794884f1eee59ca058a292f2d1e50d9547cBob Halley#define AUTH_NX(r) ((r) == DNS_R_NXDOMAIN || \

00d81794884f1eee59ca058a292f2d1e50d9547cBob Halley (r) == DNS_R_NXRRSET)

00d81794884f1eee59ca058a292f2d1e50d9547cBob Halley#define NXDOMAIN_RESULT(r) ((r) == DNS_R_NXDOMAIN || \

00d81794884f1eee59ca058a292f2d1e50d9547cBob Halley (r) == DNS_R_NCACHENXDOMAIN)

00d81794884f1eee59ca058a292f2d1e50d9547cBob Halley#define NXRRSET_RESULT(r) ((r) == DNS_R_NCACHENXRRSET || \

00d81794884f1eee59ca058a292f2d1e50d9547cBob Halley (r) == DNS_R_NXRRSET || \

508f61f8d699c46f962b682f388e54b446a7194dMark Andrews (r) == DNS_R_HINTNXRRSET)

508f61f8d699c46f962b682f388e54b446a7194dMark Andrews

508f61f8d699c46f962b682f388e54b446a7194dMark Andrews

508f61f8d699c46f962b682f388e54b446a7194dMark Andrews#define FIND_ERR_SUCCESS 0 /* highest rank */

508f61f8d699c46f962b682f388e54b446a7194dMark Andrews#define FIND_ERR_CANCELED 1

508f61f8d699c46f962b682f388e54b446a7194dMark Andrews#define FIND_ERR_FAILURE 2

508f61f8d699c46f962b682f388e54b446a7194dMark Andrews#define FIND_ERR_NXDOMAIN 3

508f61f8d699c46f962b682f388e54b446a7194dMark Andrews#define FIND_ERR_NXRRSET 4

508f61f8d699c46f962b682f388e54b446a7194dMark Andrews#define FIND_ERR_UNEXPECTED 5

508f61f8d699c46f962b682f388e54b446a7194dMark Andrews#define FIND_ERR_NOTFOUND 6

508f61f8d699c46f962b682f388e54b446a7194dMark Andrews#define FIND_ERR_MAX 7

508f61f8d699c46f962b682f388e54b446a7194dMark Andrews

508f61f8d699c46f962b682f388e54b446a7194dMark Andrewsstatic const char *errnames[] = {

508f61f8d699c46f962b682f388e54b446a7194dMark Andrews "success",

508f61f8d699c46f962b682f388e54b446a7194dMark Andrews "canceled",

508f61f8d699c46f962b682f388e54b446a7194dMark Andrews "failure",

508f61f8d699c46f962b682f388e54b446a7194dMark Andrews "nxdomain",

508f61f8d699c46f962b682f388e54b446a7194dMark Andrews "nxrrset",

508f61f8d699c46f962b682f388e54b446a7194dMark Andrews "unexpected",

508f61f8d699c46f962b682f388e54b446a7194dMark Andrews "not_found"

508f61f8d699c46f962b682f388e54b446a7194dMark Andrews};

508f61f8d699c46f962b682f388e54b446a7194dMark Andrews

508f61f8d699c46f962b682f388e54b446a7194dMark Andrews#define NEWERR(old, new) (ISC_MIN((old), (new)))

508f61f8d699c46f962b682f388e54b446a7194dMark Andrews

508f61f8d699c46f962b682f388e54b446a7194dMark Andrewsstatic isc_result_t find_err_map[FIND_ERR_MAX] = {

508f61f8d699c46f962b682f388e54b446a7194dMark Andrews ISC_R_SUCCESS,

508f61f8d699c46f962b682f388e54b446a7194dMark Andrews ISC_R_CANCELED,

508f61f8d699c46f962b682f388e54b446a7194dMark Andrews ISC_R_FAILURE,

508f61f8d699c46f962b682f388e54b446a7194dMark Andrews DNS_R_NXDOMAIN,

508f61f8d699c46f962b682f388e54b446a7194dMark Andrews DNS_R_NXRRSET,

508f61f8d699c46f962b682f388e54b446a7194dMark Andrews ISC_R_UNEXPECTED,

508f61f8d699c46f962b682f388e54b446a7194dMark Andrews ISC_R_NOTFOUND /* not YET found */

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington};

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington

bcfcece57e9411ee4bd352b45a8b1ac1dbcf01f4Bob Halleystatic void

f0bbac2c0f1afa74b88cab902daf11202ebe7cbdBob HalleyDP(int level, const char *format, ...) ISC_FORMAT_PRINTF(2, 3);

bcfcece57e9411ee4bd352b45a8b1ac1dbcf01f4Bob Halley

1366b7833c86343de278480b9abd71754e418bfaBob Halleystatic void

bcfcece57e9411ee4bd352b45a8b1ac1dbcf01f4Bob HalleyDP(int level, const char *format, ...) {

bcfcece57e9411ee4bd352b45a8b1ac1dbcf01f4Bob Halley va_list args;

bcfcece57e9411ee4bd352b45a8b1ac1dbcf01f4Bob Halley

bcfcece57e9411ee4bd352b45a8b1ac1dbcf01f4Bob Halley va_start(args, format);

bcfcece57e9411ee4bd352b45a8b1ac1dbcf01f4Bob Halley isc_log_vwrite(dns_lctx,

bcfcece57e9411ee4bd352b45a8b1ac1dbcf01f4Bob Halley DNS_LOGCATEGORY_DATABASE, DNS_LOGMODULE_ADB,

f969863d54ae3f0ddccce84c6dd054fe1e792cf7Andreas Gustafsson level, format, args);

f969863d54ae3f0ddccce84c6dd054fe1e792cf7Andreas Gustafsson va_end(args);

bcfcece57e9411ee4bd352b45a8b1ac1dbcf01f4Bob Halley}

bcfcece57e9411ee4bd352b45a8b1ac1dbcf01f4Bob Halley

1366b7833c86343de278480b9abd71754e418bfaBob Halleystatic inline dns_ttl_t

1366b7833c86343de278480b9abd71754e418bfaBob Halleyttlclamp(dns_ttl_t ttl) {

b7ebc6a127becc7c3ad93d3b1f143132cf1d3609Andreas Gustafsson if (ttl < ADB_CACHE_MINIMUM)

1366b7833c86343de278480b9abd71754e418bfaBob Halley ttl = ADB_CACHE_MINIMUM;

1366b7833c86343de278480b9abd71754e418bfaBob Halley if (ttl > ADB_CACHE_MAXIMUM)

1366b7833c86343de278480b9abd71754e418bfaBob Halley ttl = ADB_CACHE_MAXIMUM;

1366b7833c86343de278480b9abd71754e418bfaBob Halley

1366b7833c86343de278480b9abd71754e418bfaBob Halley return (ttl);

1366b7833c86343de278480b9abd71754e418bfaBob Halley}

b7ebc6a127becc7c3ad93d3b1f143132cf1d3609Andreas Gustafsson

bcfcece57e9411ee4bd352b45a8b1ac1dbcf01f4Bob Halleystatic isc_result_t

bcfcece57e9411ee4bd352b45a8b1ac1dbcf01f4Bob Halleyimport_rdataset(dns_adbname_t *adbname, dns_rdataset_t *rdataset,

bcfcece57e9411ee4bd352b45a8b1ac1dbcf01f4Bob Halley isc_stdtime_t now)

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington{

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington isc_result_t result;

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington dns_adb_t *adb;

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington dns_adbnamehook_t *nh;

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington dns_adbnamehook_t *anh;

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington dns_rdata_t rdata = DNS_RDATA_INIT;

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington struct in_addr ina;

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington struct in6_addr in6a;

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington isc_sockaddr_t sockaddr;

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington dns_adbentry_t *foundentry; /* NO CLEAN UP! */

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington int addr_bucket;

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington isc_boolean_t new_addresses_added;

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington dns_rdatatype_t rdtype;

1e107b3d7b54de5022c3328423164e533afcc15eMark Andrews unsigned int findoptions;

d6fe7ba94969ee51a3f4298a735fbc6e11691ad8Mark Andrews

1e107b3d7b54de5022c3328423164e533afcc15eMark Andrews INSIST(DNS_ADBNAME_VALID(adbname));

1e107b3d7b54de5022c3328423164e533afcc15eMark Andrews adb = adbname->adb;

1e107b3d7b54de5022c3328423164e533afcc15eMark Andrews INSIST(DNS_ADB_VALID(adb));

1e107b3d7b54de5022c3328423164e533afcc15eMark Andrews

1e107b3d7b54de5022c3328423164e533afcc15eMark Andrews rdtype = rdataset->type;

1e107b3d7b54de5022c3328423164e533afcc15eMark Andrews INSIST((rdtype == dns_rdatatype_a) || (rdtype == dns_rdatatype_aaaa));

1e107b3d7b54de5022c3328423164e533afcc15eMark Andrews if (rdtype == dns_rdatatype_a)

1e107b3d7b54de5022c3328423164e533afcc15eMark Andrews findoptions = DNS_ADBFIND_INET;

1e107b3d7b54de5022c3328423164e533afcc15eMark Andrews else

1e107b3d7b54de5022c3328423164e533afcc15eMark Andrews findoptions = DNS_ADBFIND_INET6;

1e107b3d7b54de5022c3328423164e533afcc15eMark Andrews

1e107b3d7b54de5022c3328423164e533afcc15eMark Andrews addr_bucket = DNS_ADB_INVALIDBUCKET;

d6fe7ba94969ee51a3f4298a735fbc6e11691ad8Mark Andrews new_addresses_added = ISC_FALSE;

d6fe7ba94969ee51a3f4298a735fbc6e11691ad8Mark Andrews

d6fe7ba94969ee51a3f4298a735fbc6e11691ad8Mark Andrews nh = NULL;

d6fe7ba94969ee51a3f4298a735fbc6e11691ad8Mark Andrews result = dns_rdataset_first(rdataset);

d6fe7ba94969ee51a3f4298a735fbc6e11691ad8Mark Andrews while (result == ISC_R_SUCCESS) {

d6fe7ba94969ee51a3f4298a735fbc6e11691ad8Mark Andrews dns_rdata_reset(&rdata);

d6fe7ba94969ee51a3f4298a735fbc6e11691ad8Mark Andrews dns_rdataset_current(rdataset, &rdata);

d6fe7ba94969ee51a3f4298a735fbc6e11691ad8Mark Andrews if (rdtype == dns_rdatatype_a) {

d6fe7ba94969ee51a3f4298a735fbc6e11691ad8Mark Andrews INSIST(rdata.length == 4);

d6fe7ba94969ee51a3f4298a735fbc6e11691ad8Mark Andrews memcpy(&ina.s_addr, rdata.data, 4);

d6fe7ba94969ee51a3f4298a735fbc6e11691ad8Mark Andrews isc_sockaddr_fromin(&sockaddr, &ina, 0);

d6fe7ba94969ee51a3f4298a735fbc6e11691ad8Mark Andrews } else {

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington INSIST(rdata.length == 16);

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington memcpy(in6a.s6_addr, rdata.data, 16);

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington isc_sockaddr_fromin6(&sockaddr, &in6a, 0);

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington }

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington INSIST(nh == NULL);

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington nh = new_adbnamehook(adb, NULL);

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington if (nh == NULL) {

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington adbname->partial_result |= findoptions;

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington result = ISC_R_NOMEMORY;

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington goto fail;

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington }

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington foundentry = find_entry_and_lock(adb, &sockaddr, &addr_bucket);

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington if (foundentry == NULL) {

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington dns_adbentry_t *entry;

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington entry = new_adbentry(adb);

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington if (entry == NULL) {

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington adbname->partial_result |= findoptions;

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington result = ISC_R_NOMEMORY;

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington goto fail;

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington }

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington entry->sockaddr = sockaddr;

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington entry->refcnt = 1;

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington nh->entry = entry;

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington link_entry(adb, addr_bucket, entry);

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington } else {

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington for (anh = ISC_LIST_HEAD(adbname->v4);

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington anh != NULL;

41e50ece3804f8483a9ce5abbbe49415a6a64645Brian Wellington anh = ISC_LIST_NEXT(anh, plink))

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley if (anh->entry == foundentry)

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence break;

e407562a75eb93073bb72089cced150d7ffe4d4fTatuya JINMEI 神明達哉 if (anh == NULL) {

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley foundentry->refcnt++;

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews nh->entry = foundentry;

ace0c1b3f4bc3e6951b98428bde78149ad599d33Bob Halley } else

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley free_adbnamehook(adb, &nh);

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley }

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley new_addresses_added = ISC_TRUE;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley if (nh != NULL) {

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley if (rdtype == dns_rdatatype_a)

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley ISC_LIST_APPEND(adbname->v4, nh, plink);

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley else

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley ISC_LIST_APPEND(adbname->v6, nh, plink);

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley }

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley nh = NULL;

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley result = dns_rdataset_next(rdataset);

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley }

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley fail:

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley if (nh != NULL)

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley free_adbnamehook(adb, &nh);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley if (addr_bucket != DNS_ADB_INVALIDBUCKET)

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley UNLOCK(&adb->entrylocks[addr_bucket]);

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley if (rdataset->trust == dns_trust_glue ||

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley rdataset->trust == dns_trust_additional)

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley rdataset->ttl = ADB_CACHE_MINIMUM;

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley else

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley rdataset->ttl = ttlclamp(rdataset->ttl);

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley if (rdtype == dns_rdatatype_a) {

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley DP(NCACHE_LEVEL, "expire_v4 set to MIN(%u,%u) import_rdataset",

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley adbname->expire_v4, now + rdataset->ttl);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley adbname->expire_v4 = ISC_MIN(adbname->expire_v4,

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley now + rdataset->ttl);

611dc8876869036ab5e981e53ae7a446145d9354Mark Andrews } else {

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley DP(NCACHE_LEVEL, "expire_v6 set to MIN(%u,%u) import_rdataset",

611dc8876869036ab5e981e53ae7a446145d9354Mark Andrews adbname->expire_v6, now + rdataset->ttl);

611dc8876869036ab5e981e53ae7a446145d9354Mark Andrews adbname->expire_v6 = ISC_MIN(adbname->expire_v6,

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley now + rdataset->ttl);

611dc8876869036ab5e981e53ae7a446145d9354Mark Andrews }

611dc8876869036ab5e981e53ae7a446145d9354Mark Andrews

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley if (new_addresses_added) {

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley /*

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley return (ISC_R_SUCCESS);

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley }

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley return (result);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley}

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrewsstatic isc_boolean_t

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrewskill_name(dns_adbname_t **n, isc_eventtype_t ev) {

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews dns_adbname_t *name;

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews isc_boolean_t result = ISC_FALSE;

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews isc_boolean_t result4, result6;

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews dns_adb_t *adb;

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews INSIST(n != NULL);

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews name = *n;

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews *n = NULL;

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews INSIST(DNS_ADBNAME_VALID(name));

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews adb = name->adb;

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews INSIST(DNS_ADB_VALID(adb));

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley DP(DEF_LEVEL, "killing name %p", name);

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews /*

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews if (NAME_DEAD(name) && !NAME_FETCH(name)) {

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley result = unlink_name(adb, name);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley free_adbname(adb, &name);

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews if (result)

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley result = dec_adb_irefcnt(adb);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley return (result);

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley }

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley /*

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley clean_finds_at_name(name, ev, DNS_ADBFIND_ADDRESSMASK);

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley result4 = clean_namehooks(adb, &name->v4);

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley result6 = clean_namehooks(adb, &name->v6);

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley clean_target(adb, &name->target);

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley result = ISC_TF(result4 || result6);

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley /*

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley if (!NAME_FETCH(name)) {

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley INSIST(result == ISC_FALSE);

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence result = unlink_name(adb, name);

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley free_adbname(adb, &name);

e407562a75eb93073bb72089cced150d7ffe4d4fTatuya JINMEI 神明達哉 if (result)

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley result = dec_adb_irefcnt(adb);

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley } else {

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley name->flags |= NAME_IS_DEAD;

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley cancel_fetches_at_name(name);

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley }

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley return (result);

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley}

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley

e407562a75eb93073bb72089cced150d7ffe4d4fTatuya JINMEI 神明達哉static isc_boolean_t

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halleycheck_expire_namehooks(dns_adbname_t *name, isc_stdtime_t now,

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley isc_boolean_t overmem)

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley{

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley dns_adb_t *adb;

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley isc_boolean_t expire;

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence isc_boolean_t result4 = ISC_FALSE;

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley isc_boolean_t result6 = ISC_FALSE;

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley INSIST(DNS_ADBNAME_VALID(name));

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley adb = name->adb;

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley INSIST(DNS_ADB_VALID(adb));

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley if (overmem) {

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley isc_uint32_t val;

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley isc_random_get(&val);

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley expire = ISC_TF((val % 4) == 0);

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley } else

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley expire = ISC_FALSE;

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley /*

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley if (!NAME_FETCH_V4(name) &&

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley (expire || EXPIRE_OK(name->expire_v4, now))) {

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley if (NAME_HAS_V4(name)) {

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley DP(DEF_LEVEL, "expiring v4 for name %p", name);

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley result4 = clean_namehooks(adb, &name->v4);

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley name->partial_result &= ~DNS_ADBFIND_INET;

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley }

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley name->expire_v4 = INT_MAX;

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley name->fetch_err = FIND_ERR_UNEXPECTED;

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley }

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley /*

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley if (!NAME_FETCH_V6(name) &&

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley (expire || EXPIRE_OK(name->expire_v6, now))) {

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley if (NAME_HAS_V6(name)) {

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley DP(DEF_LEVEL, "expiring v6 for name %p", name);

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews result6 = clean_namehooks(adb, &name->v6);

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews name->partial_result &= ~DNS_ADBFIND_INET6;

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews }

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews name->expire_v6 = INT_MAX;

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews name->fetch6_err = FIND_ERR_UNEXPECTED;

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews }

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley /*

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley if (expire || EXPIRE_OK(name->expire_target, now)) {

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley clean_target(adb, &name->target);

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley name->expire_target = INT_MAX;

6957b87f931bb110ba4d0adf495932691ba550b1Bob Halley }

39c7fc7e00af20144b94ef332943f62c1b3a622fMark Andrews return (ISC_TF(result4 || result6));

39c7fc7e00af20144b94ef332943f62c1b3a622fMark Andrews}

39c7fc7e00af20144b94ef332943f62c1b3a622fMark Andrews

39c7fc7e00af20144b94ef332943f62c1b3a622fMark Andrewsstatic inline void

39c7fc7e00af20144b94ef332943f62c1b3a622fMark Andrewslink_name(dns_adb_t *adb, int bucket, dns_adbname_t *name) {

39c7fc7e00af20144b94ef332943f62c1b3a622fMark Andrews INSIST(name->lock_bucket == DNS_ADB_INVALIDBUCKET);

39c7fc7e00af20144b94ef332943f62c1b3a622fMark Andrews

39c7fc7e00af20144b94ef332943f62c1b3a622fMark Andrews ISC_LIST_PREPEND(adb->names[bucket], name, plink);

39c7fc7e00af20144b94ef332943f62c1b3a622fMark Andrews name->lock_bucket = bucket;

39c7fc7e00af20144b94ef332943f62c1b3a622fMark Andrews adb->name_refcnt[bucket]++;

39c7fc7e00af20144b94ef332943f62c1b3a622fMark Andrews}

39c7fc7e00af20144b94ef332943f62c1b3a622fMark Andrews

39c7fc7e00af20144b94ef332943f62c1b3a622fMark Andrewsstatic inline isc_boolean_t

39c7fc7e00af20144b94ef332943f62c1b3a622fMark Andrewsunlink_name(dns_adb_t *adb, dns_adbname_t *name) {

39c7fc7e00af20144b94ef332943f62c1b3a622fMark Andrews int bucket;

39c7fc7e00af20144b94ef332943f62c1b3a622fMark Andrews isc_boolean_t result = ISC_FALSE;

39c7fc7e00af20144b94ef332943f62c1b3a622fMark Andrews

39c7fc7e00af20144b94ef332943f62c1b3a622fMark Andrews bucket = name->lock_bucket;

39c7fc7e00af20144b94ef332943f62c1b3a622fMark Andrews INSIST(bucket != DNS_ADB_INVALIDBUCKET);

39c7fc7e00af20144b94ef332943f62c1b3a622fMark Andrews

39c7fc7e00af20144b94ef332943f62c1b3a622fMark Andrews ISC_LIST_UNLINK(adb->names[bucket], name, plink);

39c7fc7e00af20144b94ef332943f62c1b3a622fMark Andrews name->lock_bucket = DNS_ADB_INVALIDBUCKET;

39c7fc7e00af20144b94ef332943f62c1b3a622fMark Andrews INSIST(adb->name_refcnt[bucket] > 0);

7c0539bea56022274da04263eb41fbb5b8835c38Mark Andrews adb->name_refcnt[bucket]--;

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence if (adb->name_sd[bucket] && adb->name_refcnt[bucket] == 0)

7c0539bea56022274da04263eb41fbb5b8835c38Mark Andrews result = ISC_TRUE;

7c0539bea56022274da04263eb41fbb5b8835c38Mark Andrews return (result);

7c0539bea56022274da04263eb41fbb5b8835c38Mark Andrews}

7c0539bea56022274da04263eb41fbb5b8835c38Mark Andrews

7c0539bea56022274da04263eb41fbb5b8835c38Mark Andrewsstatic inline void

7c0539bea56022274da04263eb41fbb5b8835c38Mark Andrewslink_entry(dns_adb_t *adb, int bucket, dns_adbentry_t *entry) {

7c0539bea56022274da04263eb41fbb5b8835c38Mark Andrews ISC_LIST_PREPEND(adb->entries[bucket], entry, plink);

7c0539bea56022274da04263eb41fbb5b8835c38Mark Andrews entry->lock_bucket = bucket;

7c0539bea56022274da04263eb41fbb5b8835c38Mark Andrews adb->entry_refcnt[bucket]++;

7c0539bea56022274da04263eb41fbb5b8835c38Mark Andrews}

7c0539bea56022274da04263eb41fbb5b8835c38Mark Andrews

7c0539bea56022274da04263eb41fbb5b8835c38Mark Andrewsstatic inline isc_boolean_t

7c0539bea56022274da04263eb41fbb5b8835c38Mark Andrewsunlink_entry(dns_adb_t *adb, dns_adbentry_t *entry) {

7c0539bea56022274da04263eb41fbb5b8835c38Mark Andrews int bucket;

7c0539bea56022274da04263eb41fbb5b8835c38Mark Andrews isc_boolean_t result = ISC_FALSE;

7c0539bea56022274da04263eb41fbb5b8835c38Mark Andrews

7c0539bea56022274da04263eb41fbb5b8835c38Mark Andrews bucket = entry->lock_bucket;

7c0539bea56022274da04263eb41fbb5b8835c38Mark Andrews INSIST(bucket != DNS_ADB_INVALIDBUCKET);

7c0539bea56022274da04263eb41fbb5b8835c38Mark Andrews

7c0539bea56022274da04263eb41fbb5b8835c38Mark Andrews ISC_LIST_UNLINK(adb->entries[bucket], entry, plink);

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews entry->lock_bucket = DNS_ADB_INVALIDBUCKET;

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews INSIST(adb->entry_refcnt[bucket] > 0);

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews adb->entry_refcnt[bucket]--;

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews if (adb->entry_sd[bucket] && adb->entry_refcnt[bucket] == 0)

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews result = ISC_TRUE;

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews return (result);

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews}

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrewsstatic inline void

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrewsviolate_locking_hierarchy(isc_mutex_t *have, isc_mutex_t *want) {

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews if (isc_mutex_trylock(want) != ISC_R_SUCCESS) {

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews UNLOCK(have);

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews LOCK(want);

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews LOCK(have);

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews }

7c0539bea56022274da04263eb41fbb5b8835c38Mark Andrews}

7c0539bea56022274da04263eb41fbb5b8835c38Mark Andrews

aa8e34546c1e51e69f5a4935d28cb0c543e7401aAndreas Gustafssonstatic isc_boolean_t

aa8e34546c1e51e69f5a4935d28cb0c543e7401aAndreas Gustafssonshutdown_names(dns_adb_t *adb) {

aa8e34546c1e51e69f5a4935d28cb0c543e7401aAndreas Gustafsson int bucket;

aa8e34546c1e51e69f5a4935d28cb0c543e7401aAndreas Gustafsson isc_boolean_t result = ISC_FALSE;

7c0539bea56022274da04263eb41fbb5b8835c38Mark Andrews dns_adbname_t *name;

7c0539bea56022274da04263eb41fbb5b8835c38Mark Andrews dns_adbname_t *next_name;

7c0539bea56022274da04263eb41fbb5b8835c38Mark Andrews

7c0539bea56022274da04263eb41fbb5b8835c38Mark Andrews for (bucket = 0; bucket < NBUCKETS; bucket++) {

7c0539bea56022274da04263eb41fbb5b8835c38Mark Andrews LOCK(&adb->namelocks[bucket]);

38d2d0e9326a2f70b5893302b89a26978b539405Bob Halley adb->name_sd[bucket] = ISC_TRUE;

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley name = ISC_LIST_HEAD(adb->names[bucket]);

e407562a75eb93073bb72089cced150d7ffe4d4fTatuya JINMEI 神明達哉 if (name == NULL) {

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley /*

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley INSIST(result == ISC_FALSE);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley result = dec_adb_irefcnt(adb);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley } else {

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley /*

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley while (name != NULL) {

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley next_name = ISC_LIST_NEXT(name, plink);

29b487b0a458d655f0aad9257ca46021f4903d08Bob Halley INSIST(result == ISC_FALSE);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley result = kill_name(&name,

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley DNS_EVENT_ADBSHUTDOWN);

d2b77d720f1dcdc85a761b1de1a94d32fbdef81aBrian Wellington name = next_name;

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence }

5d661f0bde49c68d33eb1146d60058782aca50a7Bob Halley }

e407562a75eb93073bb72089cced150d7ffe4d4fTatuya JINMEI 神明達哉

d2b77d720f1dcdc85a761b1de1a94d32fbdef81aBrian Wellington UNLOCK(&adb->namelocks[bucket]);

d2b77d720f1dcdc85a761b1de1a94d32fbdef81aBrian Wellington }

d2b77d720f1dcdc85a761b1de1a94d32fbdef81aBrian Wellington return (result);

a8e4c27d2c00e831d1eb7260e3f455d97907d799Bob Halley}

d2b77d720f1dcdc85a761b1de1a94d32fbdef81aBrian Wellington

c6af776a7e2087e9b41b6403633d1b591431dacfMark Andrewsstatic isc_boolean_t

6ebf3dbb33606411c17cbb75f7407e1457ca4b68Mark Andrewsshutdown_entries(dns_adb_t *adb) {

c6af776a7e2087e9b41b6403633d1b591431dacfMark Andrews int bucket;

c6af776a7e2087e9b41b6403633d1b591431dacfMark Andrews isc_boolean_t result = ISC_FALSE;

6d5032f9a23fe1197610114983c9938ac419b20cBrian Wellington dns_adbentry_t *entry;

d2b77d720f1dcdc85a761b1de1a94d32fbdef81aBrian Wellington dns_adbentry_t *next_entry;

e407562a75eb93073bb72089cced150d7ffe4d4fTatuya JINMEI 神明達哉

5d661f0bde49c68d33eb1146d60058782aca50a7Bob Halley for (bucket = 0; bucket < NBUCKETS; bucket++) {

5d661f0bde49c68d33eb1146d60058782aca50a7Bob Halley LOCK(&adb->entrylocks[bucket]);

5d661f0bde49c68d33eb1146d60058782aca50a7Bob Halley adb->entry_sd[bucket] = ISC_TRUE;

d2b77d720f1dcdc85a761b1de1a94d32fbdef81aBrian Wellington

d2b77d720f1dcdc85a761b1de1a94d32fbdef81aBrian Wellington entry = ISC_LIST_HEAD(adb->entries[bucket]);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley if (entry == NULL) {

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence /*

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley result = dec_adb_irefcnt(adb);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley } else {

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley /*

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley while (entry != NULL) {

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley next_entry = ISC_LIST_NEXT(entry, plink);

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence if (entry->refcnt == 0 &&

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley entry->expires != 0) {

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley result = unlink_entry(adb, entry);

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley free_adbentry(adb, &entry);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley if (result)

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley result = dec_adb_irefcnt(adb);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley }

40f53fa8d9c6a4fc38c0014495e7a42b08f52481David Lawrence entry = next_entry;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley }

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley }

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley UNLOCK(&adb->entrylocks[bucket]);

40f53fa8d9c6a4fc38c0014495e7a42b08f52481David Lawrence }

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley return (result);

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley}

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halleystatic void

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halleycancel_fetches_at_name(dns_adbname_t *name) {

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley if (NAME_FETCH_A(name))

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley dns_resolver_cancelfetch(name->fetch_a->fetch);

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley if (NAME_FETCH_AAAA(name))

3740b569ae76295b941d57a724a43beb75b533baBob Halley dns_resolver_cancelfetch(name->fetch_aaaa->fetch);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley}

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halleystatic isc_boolean_t

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halleyclean_namehooks(dns_adb_t *adb, dns_adbnamehooklist_t *namehooks) {

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley dns_adbentry_t *entry;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley dns_adbnamehook_t *namehook;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley int addr_bucket;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley isc_boolean_t result = ISC_FALSE;

0370190a682a3933119784a1023b1b9a51c66fa3Bob Halley

0736cce338052ed219bcb5147046cb78d0361506Andreas Gustafsson addr_bucket = DNS_ADB_INVALIDBUCKET;

f083a44415365f6464f8bd35f439dc13ee0b684fMark Andrews namehook = ISC_LIST_HEAD(*namehooks);

08c8a934ceb2dfc6a5ebfd3be4ba5a1b3243bc73Bob Halley while (namehook != NULL) {

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley INSIST(DNS_ADBNAMEHOOK_VALID(namehook));

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley /*

0736cce338052ed219bcb5147046cb78d0361506Andreas Gustafsson entry = namehook->entry;

0736cce338052ed219bcb5147046cb78d0361506Andreas Gustafsson if (entry != NULL) {

0736cce338052ed219bcb5147046cb78d0361506Andreas Gustafsson INSIST(DNS_ADBENTRY_VALID(entry));

0736cce338052ed219bcb5147046cb78d0361506Andreas Gustafsson

0736cce338052ed219bcb5147046cb78d0361506Andreas Gustafsson if (addr_bucket != entry->lock_bucket) {

0736cce338052ed219bcb5147046cb78d0361506Andreas Gustafsson if (addr_bucket != DNS_ADB_INVALIDBUCKET)

0736cce338052ed219bcb5147046cb78d0361506Andreas Gustafsson UNLOCK(&adb->entrylocks[addr_bucket]);

0736cce338052ed219bcb5147046cb78d0361506Andreas Gustafsson addr_bucket = entry->lock_bucket;

0736cce338052ed219bcb5147046cb78d0361506Andreas Gustafsson LOCK(&adb->entrylocks[addr_bucket]);

0736cce338052ed219bcb5147046cb78d0361506Andreas Gustafsson }

e672951ed28b2e9cc7a19c3d7fa4a258382f981cAutomatic Updater

0736cce338052ed219bcb5147046cb78d0361506Andreas Gustafsson result = dec_entry_refcnt(adb, entry, ISC_FALSE);

0736cce338052ed219bcb5147046cb78d0361506Andreas Gustafsson }

0736cce338052ed219bcb5147046cb78d0361506Andreas Gustafsson

0736cce338052ed219bcb5147046cb78d0361506Andreas Gustafsson /*

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley namehook->entry = NULL;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley ISC_LIST_UNLINK(*namehooks, namehook, plink);

ace0c1b3f4bc3e6951b98428bde78149ad599d33Bob Halley free_adbnamehook(adb, &namehook);

ace0c1b3f4bc3e6951b98428bde78149ad599d33Bob Halley

ace0c1b3f4bc3e6951b98428bde78149ad599d33Bob Halley namehook = ISC_LIST_HEAD(*namehooks);

ace0c1b3f4bc3e6951b98428bde78149ad599d33Bob Halley }

ace0c1b3f4bc3e6951b98428bde78149ad599d33Bob Halley

ace0c1b3f4bc3e6951b98428bde78149ad599d33Bob Halley if (addr_bucket != DNS_ADB_INVALIDBUCKET)

ace0c1b3f4bc3e6951b98428bde78149ad599d33Bob Halley UNLOCK(&adb->entrylocks[addr_bucket]);

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence return (result);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley}

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

bd53af8229e28cfec8bfd9572b4d31514ea97f48Bob Halleystatic void

45e1bd63587102c3bb361eaca42ee7b714fb3542Mark Andrewsclean_target(dns_adb_t *adb, dns_name_t *target) {

bd53af8229e28cfec8bfd9572b4d31514ea97f48Bob Halley if (dns_name_countlabels(target) > 0) {

bd53af8229e28cfec8bfd9572b4d31514ea97f48Bob Halley dns_name_free(target, adb->mctx);

bd53af8229e28cfec8bfd9572b4d31514ea97f48Bob Halley dns_name_init(target, NULL);

bd53af8229e28cfec8bfd9572b4d31514ea97f48Bob Halley }

bd53af8229e28cfec8bfd9572b4d31514ea97f48Bob Halley}

bd53af8229e28cfec8bfd9572b4d31514ea97f48Bob Halley

bd53af8229e28cfec8bfd9572b4d31514ea97f48Bob Halleystatic isc_result_t

08c8a934ceb2dfc6a5ebfd3be4ba5a1b3243bc73Bob Halleyset_target(dns_adb_t *adb, dns_name_t *name, dns_name_t *fname,

bd53af8229e28cfec8bfd9572b4d31514ea97f48Bob Halley dns_rdataset_t *rdataset, dns_name_t *target)

bd53af8229e28cfec8bfd9572b4d31514ea97f48Bob Halley{

bd53af8229e28cfec8bfd9572b4d31514ea97f48Bob Halley isc_result_t result;

bd53af8229e28cfec8bfd9572b4d31514ea97f48Bob Halley dns_namereln_t namereln;

fff9a37a0355e4181b3132370a173d1dbb5a0f3cBob Halley unsigned int nlabels, nbits;

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence int order;

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence dns_rdata_t rdata = DNS_RDATA_INIT;

bd53af8229e28cfec8bfd9572b4d31514ea97f48Bob Halley dns_fixedname_t fixed1, fixed2;

bd53af8229e28cfec8bfd9572b4d31514ea97f48Bob Halley dns_name_t *prefix, *new_target;

bd53af8229e28cfec8bfd9572b4d31514ea97f48Bob Halley

bd53af8229e28cfec8bfd9572b4d31514ea97f48Bob Halley REQUIRE(dns_name_countlabels(target) == 0);

bd53af8229e28cfec8bfd9572b4d31514ea97f48Bob Halley

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence if (rdataset->type == dns_rdatatype_cname) {

bd53af8229e28cfec8bfd9572b4d31514ea97f48Bob Halley dns_rdata_cname_t cname;

bd53af8229e28cfec8bfd9572b4d31514ea97f48Bob Halley

bd53af8229e28cfec8bfd9572b4d31514ea97f48Bob Halley /*

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley result = dns_rdataset_first(rdataset);

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley if (result != ISC_R_SUCCESS)

a41d348e14b0465c6444cdfd2d59f9370fd44fe8Mark Andrews return (result);

a41d348e14b0465c6444cdfd2d59f9370fd44fe8Mark Andrews dns_rdataset_current(rdataset, &rdata);

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley result = dns_rdata_tostruct(&rdata, &cname, NULL);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley if (result != ISC_R_SUCCESS)

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley return (result);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley result = dns_name_dup(&cname.cname, adb->mctx, target);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley dns_rdata_freestruct(&cname);

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley if (result != ISC_R_SUCCESS)

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley return (result);

08c8a934ceb2dfc6a5ebfd3be4ba5a1b3243bc73Bob Halley } else {

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley dns_rdata_dname_t dname;

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley INSIST(rdataset->type == dns_rdatatype_dname);

a41d348e14b0465c6444cdfd2d59f9370fd44fe8Mark Andrews namereln = dns_name_fullcompare(name, fname, &order,

a41d348e14b0465c6444cdfd2d59f9370fd44fe8Mark Andrews &nlabels, &nbits);

6e49e91bd08778d7eae45a2229dcf41ed97cc636David Lawrence INSIST(namereln == dns_namereln_subdomain);

a41d348e14b0465c6444cdfd2d59f9370fd44fe8Mark Andrews /*

a41d348e14b0465c6444cdfd2d59f9370fd44fe8Mark Andrews result = dns_rdataset_first(rdataset);

a41d348e14b0465c6444cdfd2d59f9370fd44fe8Mark Andrews if (result != ISC_R_SUCCESS)

a41d348e14b0465c6444cdfd2d59f9370fd44fe8Mark Andrews return (result);

a41d348e14b0465c6444cdfd2d59f9370fd44fe8Mark Andrews dns_rdataset_current(rdataset, &rdata);

a41d348e14b0465c6444cdfd2d59f9370fd44fe8Mark Andrews result = dns_rdata_tostruct(&rdata, &dname, NULL);

e672951ed28b2e9cc7a19c3d7fa4a258382f981cAutomatic Updater if (result != ISC_R_SUCCESS)

dc570b92f6cc60def4207733c7a194fbb69a4399Michael Sawyer return (result);

a41d348e14b0465c6444cdfd2d59f9370fd44fe8Mark Andrews /*

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence dns_fixedname_init(&fixed1);

f257e9369c27578eb87077923dc010a6614e2a7aMark Andrews prefix = dns_fixedname_name(&fixed1);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley dns_fixedname_init(&fixed2);

f257e9369c27578eb87077923dc010a6614e2a7aMark Andrews new_target = dns_fixedname_name(&fixed2);

f257e9369c27578eb87077923dc010a6614e2a7aMark Andrews result = dns_name_split(name, nlabels, nbits, prefix, NULL);

a41d348e14b0465c6444cdfd2d59f9370fd44fe8Mark Andrews if (result != ISC_R_SUCCESS) {

a41d348e14b0465c6444cdfd2d59f9370fd44fe8Mark Andrews dns_rdata_freestruct(&dname);

a41d348e14b0465c6444cdfd2d59f9370fd44fe8Mark Andrews return (result);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley }

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley result = dns_name_concatenate(prefix, &dname.dname, new_target,

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley NULL);

38d2d0e9326a2f70b5893302b89a26978b539405Bob Halley dns_rdata_freestruct(&dname);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley if (result != ISC_R_SUCCESS)

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley return (result);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley result = dns_name_dup(new_target, adb->mctx, target);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley if (result != ISC_R_SUCCESS)

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley return (result);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley }

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

3e6753a75350a990d2723a936657e5dabc1c5e30Brian Wellington return (ISC_R_SUCCESS);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley}

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halleystatic void

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halleyevent_free(isc_event_t *event) {

0874abad14e3e9ecfc3dc1a1a2b9969f2f027724Mark Andrews dns_adbfind_t *find;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley INSIST(event != NULL);

216030f2849b0812910fbc1817ca17208a112663Mark Andrews find = event->ev_destroy_arg;

0874abad14e3e9ecfc3dc1a1a2b9969f2f027724Mark Andrews INSIST(DNS_ADBFIND_VALID(find));

0874abad14e3e9ecfc3dc1a1a2b9969f2f027724Mark Andrews

0874abad14e3e9ecfc3dc1a1a2b9969f2f027724Mark Andrews LOCK(&find->lock);

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews find->flags |= FIND_EVENT_FREED;

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley event->ev_destroy_arg = NULL;

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley UNLOCK(&find->lock);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews}

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halleystatic void

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halleyclean_finds_at_name(dns_adbname_t *name, isc_eventtype_t evtype,

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley unsigned int addrs)

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley{

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley isc_event_t *ev;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley isc_task_t *task;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley dns_adbfind_t *find;

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley dns_adbfind_t *next_find;

82a30bf0a0d1a8120e8c021966a5275eacb9ed35David Lawrence isc_boolean_t process;

82a30bf0a0d1a8120e8c021966a5275eacb9ed35David Lawrence unsigned int wanted, notify;

8f9664521724eefc39728c092d0bc6be527e1496Mark Andrews

e672951ed28b2e9cc7a19c3d7fa4a258382f981cAutomatic Updater DP(ENTER_LEVEL,

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews "ENTER clean_finds_at_name, name %p, evtype %08x, addrs %08x",

6e49e91bd08778d7eae45a2229dcf41ed97cc636David Lawrence name, evtype, addrs);

ce3761f64d3d734cc94605026985898900ecc474Bob Halley

ce3761f64d3d734cc94605026985898900ecc474Bob Halley find = ISC_LIST_HEAD(name->finds);

ce3761f64d3d734cc94605026985898900ecc474Bob Halley while (find != NULL) {

ce3761f64d3d734cc94605026985898900ecc474Bob Halley LOCK(&find->lock);

6e49e91bd08778d7eae45a2229dcf41ed97cc636David Lawrence next_find = ISC_LIST_NEXT(find, plink);

08c8a934ceb2dfc6a5ebfd3be4ba5a1b3243bc73Bob Halley

40f53fa8d9c6a4fc38c0014495e7a42b08f52481David Lawrence process = ISC_FALSE;

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley wanted = find->flags & DNS_ADBFIND_ADDRESSMASK;

c5839c39bd07c9dd3d4cd598035deb0537098475Bob Halley notify = wanted & addrs;

86131d8d7aaf1bb8b8bfc7819985d05ea369b708Bob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley switch (evtype) {

70fdfcd1fa7ebd059deffa9a2cecc29df96dfe52Bob Halley case DNS_EVENT_ADBMOREADDRESSES:

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley DP(ISC_LOG_DEBUG(3), "DNS_EVENT_ADBMOREADDRESSES");

70fdfcd1fa7ebd059deffa9a2cecc29df96dfe52Bob Halley if ((notify) != 0) {

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley find->flags &= ~addrs;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley process = ISC_TRUE;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley }

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley break;

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley case DNS_EVENT_ADBNOMOREADDRESSES:

82a30bf0a0d1a8120e8c021966a5275eacb9ed35David Lawrence DP(ISC_LOG_DEBUG(3), "DNS_EVENT_ADBNOMOREADDRESSES");

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley find->flags &= ~addrs;

82a30bf0a0d1a8120e8c021966a5275eacb9ed35David Lawrence wanted = find->flags & DNS_ADBFIND_ADDRESSMASK;

82a30bf0a0d1a8120e8c021966a5275eacb9ed35David Lawrence if (wanted == 0)

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley process = ISC_TRUE;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley break;

8db3b065b4659f593f7b8eaa7c9ca0c3daa4da02Bob Halley default:

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley find->flags &= ~addrs;

38d2d0e9326a2f70b5893302b89a26978b539405Bob Halley process = ISC_TRUE;

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley }

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley if (process) {

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley DP(DEF_LEVEL, "cfan: processing find %p", find);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley /*

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley ISC_LIST_UNLINK(name->finds, find, plink);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley find->adbname = NULL;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley find->name_bucket = DNS_ADB_INVALIDBUCKET;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley INSIST(!FIND_EVENTSENT(find));

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley ev = &find->event;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley task = ev->ev_sender;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley ev->ev_sender = find;

8db3b065b4659f593f7b8eaa7c9ca0c3daa4da02Bob Halley find->result_v4 = find_err_map[name->fetch_err];

38d2d0e9326a2f70b5893302b89a26978b539405Bob Halley find->result_v6 = find_err_map[name->fetch6_err];

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley ev->ev_type = evtype;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley ev->ev_destroy = event_free;

c5839c39bd07c9dd3d4cd598035deb0537098475Bob Halley ev->ev_destroy_arg = find;

c5839c39bd07c9dd3d4cd598035deb0537098475Bob Halley

c5839c39bd07c9dd3d4cd598035deb0537098475Bob Halley DP(DEF_LEVEL,

cee7525336d4710a64368875d92eb439d4d3efb1Mark Andrews "sending event %p to task %p for find %p",

40f53fa8d9c6a4fc38c0014495e7a42b08f52481David Lawrence ev, task, find);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley isc_task_sendanddetach(&task, (isc_event_t **)&ev);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley } else {

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley DP(DEF_LEVEL, "cfan: skipping find %p", find);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley }

8db3b065b4659f593f7b8eaa7c9ca0c3daa4da02Bob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley UNLOCK(&find->lock);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley find = next_find;

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley }

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley DP(ENTER_LEVEL, "EXIT clean_finds_at_name, name %p", name);

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley}

0ad5cb4782cd419b089bcab28d2fd9e140dbcc59Mark Andrews

0ad5cb4782cd419b089bcab28d2fd9e140dbcc59Mark Andrewsstatic inline void

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halleycheck_exit(dns_adb_t *adb) {

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley isc_event_t *event;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley /*

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley if (adb->shutting_down) {

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley /*

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley INSIST(!adb->cevent_sent); /* Sanity check. */

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley event = &adb->cevent;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley isc_task_send(adb->task, &event);

8db3b065b4659f593f7b8eaa7c9ca0c3daa4da02Bob Halley adb->cevent_sent = ISC_TRUE;

38d2d0e9326a2f70b5893302b89a26978b539405Bob Halley }

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley}

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halleystatic inline isc_boolean_t

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halleydec_adb_irefcnt(dns_adb_t *adb) {

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley isc_event_t *event;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley isc_task_t *etask;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley isc_boolean_t result = ISC_FALSE;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

577179503f2eb7695ec668d8eeb41889a150e28fBob Halley LOCK(&adb->reflock);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley INSIST(adb->irefcnt > 0);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley adb->irefcnt--;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

8db3b065b4659f593f7b8eaa7c9ca0c3daa4da02Bob Halley if (adb->irefcnt == 0) {

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley event = ISC_LIST_HEAD(adb->whenshutdown);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley while (event != NULL) {

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley ISC_LIST_UNLINK(adb->whenshutdown, event, ev_link);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley etask = event->ev_sender;

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews event->ev_sender = adb;

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews isc_task_sendanddetach(&etask, &event);

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews event = ISC_LIST_HEAD(adb->whenshutdown);

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews }

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews }

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley if (adb->irefcnt == 0 && adb->erefcnt == 0)

0874abad14e3e9ecfc3dc1a1a2b9969f2f027724Mark Andrews result = ISC_TRUE;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley UNLOCK(&adb->reflock);

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley return (result);

af3459443207253f197cd684567bfea0311ab76dMark Andrews}

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halleystatic inline void

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halleyinc_adb_irefcnt(dns_adb_t *adb) {

577179503f2eb7695ec668d8eeb41889a150e28fBob Halley LOCK(&adb->reflock);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley adb->irefcnt++;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley UNLOCK(&adb->reflock);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley}

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

8db3b065b4659f593f7b8eaa7c9ca0c3daa4da02Bob Halleystatic inline void

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halleyinc_adb_erefcnt(dns_adb_t *adb) {

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley LOCK(&adb->reflock);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley adb->erefcnt++;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley UNLOCK(&adb->reflock);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley}

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halleystatic inline void

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halleyinc_entry_refcnt(dns_adb_t *adb, dns_adbentry_t *entry, isc_boolean_t lock) {

af3459443207253f197cd684567bfea0311ab76dMark Andrews int bucket;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley bucket = entry->lock_bucket;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley if (lock)

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley LOCK(&adb->entrylocks[bucket]);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley entry->refcnt++;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley if (lock)

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley UNLOCK(&adb->entrylocks[bucket]);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley}

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halleystatic inline isc_boolean_t

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halleydec_entry_refcnt(dns_adb_t *adb, dns_adbentry_t *entry, isc_boolean_t lock) {

8db3b065b4659f593f7b8eaa7c9ca0c3daa4da02Bob Halley int bucket;

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley isc_boolean_t destroy_entry;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley isc_boolean_t result = ISC_FALSE;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley bucket = entry->lock_bucket;

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley if (lock)

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley LOCK(&adb->entrylocks[bucket]);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley INSIST(entry->refcnt > 0);

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley entry->refcnt--;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley destroy_entry = ISC_FALSE;

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff if (entry->refcnt == 0 &&

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley (adb->entry_sd[bucket] || entry->expires == 0)) {

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews destroy_entry = ISC_TRUE;

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff result = unlink_entry(adb, entry);

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley }

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley if (lock)

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley UNLOCK(&adb->entrylocks[bucket]);

c5839c39bd07c9dd3d4cd598035deb0537098475Bob Halley

c5839c39bd07c9dd3d4cd598035deb0537098475Bob Halley if (!destroy_entry)

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley return (result);

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley entry->lock_bucket = DNS_ADB_INVALIDBUCKET;

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley free_adbentry(adb, &entry);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley if (result)

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley result =dec_adb_irefcnt(adb);

0874abad14e3e9ecfc3dc1a1a2b9969f2f027724Mark Andrews

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley return (result);

c5839c39bd07c9dd3d4cd598035deb0537098475Bob Halley}

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrewsstatic inline dns_adbname_t *

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrewsnew_adbname(dns_adb_t *adb, dns_name_t *dnsname) {

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews dns_adbname_t *name;

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews name = isc_mempool_get(adb->nmp);

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews if (name == NULL)

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews return (NULL);

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews

b6309ed962c4988a314d61742c4fbc4935467d68Mark Andrews dns_name_init(&name->name, NULL);

c5839c39bd07c9dd3d4cd598035deb0537098475Bob Halley if (dns_name_dup(dnsname, adb->mctx, &name->name) != ISC_R_SUCCESS) {

c5839c39bd07c9dd3d4cd598035deb0537098475Bob Halley isc_mempool_put(adb->nmp, name);

c5839c39bd07c9dd3d4cd598035deb0537098475Bob Halley return (NULL);

c5839c39bd07c9dd3d4cd598035deb0537098475Bob Halley }

c5839c39bd07c9dd3d4cd598035deb0537098475Bob Halley dns_name_init(&name->target, NULL);

c5839c39bd07c9dd3d4cd598035deb0537098475Bob Halley name->magic = DNS_ADBNAME_MAGIC;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley name->adb = adb;

c5839c39bd07c9dd3d4cd598035deb0537098475Bob Halley name->partial_result = 0;

c5839c39bd07c9dd3d4cd598035deb0537098475Bob Halley name->flags = 0;

40f53fa8d9c6a4fc38c0014495e7a42b08f52481David Lawrence name->expire_v4 = INT_MAX;

c5839c39bd07c9dd3d4cd598035deb0537098475Bob Halley name->expire_v6 = INT_MAX;

c5839c39bd07c9dd3d4cd598035deb0537098475Bob Halley name->expire_target = INT_MAX;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley name->chains = 0;

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley name->lock_bucket = DNS_ADB_INVALIDBUCKET;

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley ISC_LIST_INIT(name->v4);

8db3b065b4659f593f7b8eaa7c9ca0c3daa4da02Bob Halley ISC_LIST_INIT(name->v6);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley name->fetch_a = NULL;

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley name->fetch_aaaa = NULL;

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley name->fetch_err = FIND_ERR_UNEXPECTED;

95c86af1e92dae4ff837a39e7e2dcb7308dd9cceBob Halley name->fetch6_err = FIND_ERR_UNEXPECTED;

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff ISC_LIST_INIT(name->finds);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley ISC_LINK_INIT(name, plink);

c50fd34a4e0e6978f8ca5f6f3ad8545549c3cfeeBob Halley

030aafe4114875ff659fcf83db6d05846470fb3eMark Andrews return (name);

030aafe4114875ff659fcf83db6d05846470fb3eMark Andrews}

ed6ca94ad75353d5344e2a456e7a8beb480a351fMark Andrews

ed6ca94ad75353d5344e2a456e7a8beb480a351fMark Andrewsstatic inline void

ed6ca94ad75353d5344e2a456e7a8beb480a351fMark Andrewsfree_adbname(dns_adb_t *adb, dns_adbname_t **name) {

ed6ca94ad75353d5344e2a456e7a8beb480a351fMark Andrews dns_adbname_t *n;

ed6ca94ad75353d5344e2a456e7a8beb480a351fMark Andrews

ed6ca94ad75353d5344e2a456e7a8beb480a351fMark Andrews INSIST(name != NULL && DNS_ADBNAME_VALID(*name));

ed6ca94ad75353d5344e2a456e7a8beb480a351fMark Andrews n = *name;

ed6ca94ad75353d5344e2a456e7a8beb480a351fMark Andrews *name = NULL;

ed6ca94ad75353d5344e2a456e7a8beb480a351fMark Andrews

ed6ca94ad75353d5344e2a456e7a8beb480a351fMark Andrews INSIST(!NAME_HAS_V4(n));

ed6ca94ad75353d5344e2a456e7a8beb480a351fMark Andrews INSIST(!NAME_HAS_V6(n));

ed6ca94ad75353d5344e2a456e7a8beb480a351fMark Andrews INSIST(!NAME_FETCH(n));