bf43fdafa3bff9e84cb03f1a19aca74514d2516eBob Halley

9c3531d72aeaad6c5f01efe6a1c82023e1379e4dDavid Lawrence

1c776a2909632bc755f3fddd3b53addd792ab4d0Brian Wellington

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington#if 0

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington#define DUMP_ADB_AFTER_CLEANING

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley#endif

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley#include <config.h>

09f22ac5b09e70bc526015f37168ba33e21ea91fDavid Lawrence

b5debbe212097d1c573a2ba3bd9a3d526d86b0aeBrian Wellington#include <limits.h>

09f22ac5b09e70bc526015f37168ba33e21ea91fDavid Lawrence

09f22ac5b09e70bc526015f37168ba33e21ea91fDavid Lawrence#include <isc/mutexblock.h>

e419f613d8591885df608cb73065921be07dd12eBob Halley#include <isc/netaddr.h>

e419f613d8591885df608cb73065921be07dd12eBob Halley#include <isc/random.h>

92ef1a9b9dbd48ecb507b42ac62c15afefdaf838David Lawrence#include <isc/string.h> /* Required for HP/UX (and others?) */

e419f613d8591885df608cb73065921be07dd12eBob Halley#include <isc/task.h>

bf43fdafa3bff9e84cb03f1a19aca74514d2516eBob Halley#include <isc/timer.h>

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley#include <isc/util.h>

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington

6bc1a645619a14707da68b130dafe41721fd2f25Brian Wellington#include <dns/adb.h>

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley#include <dns/db.h>

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley#include <dns/events.h>

ed019cabc1cc75d4412010c331876e4ae5080a4dDavid Lawrence#include <dns/log.h>

ed019cabc1cc75d4412010c331876e4ae5080a4dDavid Lawrence#include <dns/rdata.h>

ed019cabc1cc75d4412010c331876e4ae5080a4dDavid Lawrence#include <dns/rdataset.h>

ed019cabc1cc75d4412010c331876e4ae5080a4dDavid Lawrence#include <dns/rdatastruct.h>

ed019cabc1cc75d4412010c331876e4ae5080a4dDavid Lawrence#include <dns/rdatatype.h>

ed019cabc1cc75d4412010c331876e4ae5080a4dDavid Lawrence#include <dns/resolver.h>

ed019cabc1cc75d4412010c331876e4ae5080a4dDavid Lawrence#include <dns/result.h>

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington

ed019cabc1cc75d4412010c331876e4ae5080a4dDavid Lawrence#define DNS_ADB_MAGIC ISC_MAGIC('D', 'a', 'd', 'b')

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington#define DNS_ADB_VALID(x) ISC_MAGIC_VALID(x, DNS_ADB_MAGIC)

ed019cabc1cc75d4412010c331876e4ae5080a4dDavid Lawrence#define DNS_ADBNAME_MAGIC ISC_MAGIC('a', 'd', 'b', 'N')

ed019cabc1cc75d4412010c331876e4ae5080a4dDavid Lawrence#define DNS_ADBNAME_VALID(x) ISC_MAGIC_VALID(x, DNS_ADBNAME_MAGIC)

ed019cabc1cc75d4412010c331876e4ae5080a4dDavid Lawrence#define DNS_ADBNAMEHOOK_MAGIC ISC_MAGIC('a', 'd', 'N', 'H')

ed019cabc1cc75d4412010c331876e4ae5080a4dDavid Lawrence#define DNS_ADBNAMEHOOK_VALID(x) ISC_MAGIC_VALID(x, DNS_ADBNAMEHOOK_MAGIC)

ed019cabc1cc75d4412010c331876e4ae5080a4dDavid Lawrence#define DNS_ADBLAMEINFO_MAGIC ISC_MAGIC('a', 'd', 'b', 'Z')

ed019cabc1cc75d4412010c331876e4ae5080a4dDavid Lawrence#define DNS_ADBLAMEINFO_VALID(x) ISC_MAGIC_VALID(x, DNS_ADBLAMEINFO_MAGIC)

ed019cabc1cc75d4412010c331876e4ae5080a4dDavid Lawrence#define DNS_ADBENTRY_MAGIC ISC_MAGIC('a', 'd', 'b', 'E')

ed019cabc1cc75d4412010c331876e4ae5080a4dDavid Lawrence#define DNS_ADBENTRY_VALID(x) ISC_MAGIC_VALID(x, DNS_ADBENTRY_MAGIC)

ed019cabc1cc75d4412010c331876e4ae5080a4dDavid Lawrence#define DNS_ADBFETCH_MAGIC ISC_MAGIC('a', 'd', 'F', '4')

ed019cabc1cc75d4412010c331876e4ae5080a4dDavid Lawrence#define DNS_ADBFETCH_VALID(x) ISC_MAGIC_VALID(x, DNS_ADBFETCH_MAGIC)

76c8294c81fb48b1da6e1fc5b83322a4cedb8e58Andreas Gustafsson#define DNS_ADBFETCH6_MAGIC ISC_MAGIC('a', 'd', 'F', '6')

76c8294c81fb48b1da6e1fc5b83322a4cedb8e58Andreas Gustafsson#define DNS_ADBFETCH6_VALID(x) ISC_MAGIC_VALID(x, DNS_ADBFETCH6_MAGIC)

1b1e1fda4638334b484aa38c15f53a131c0b0fdfAndreas Gustafsson

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington#define NBUCKETS 1009 /*%< how many buckets for names/addrs */

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley

e44487bfc23599b6b240e09d83d1c862fecfcc82Michael Graff#define ADB_CACHE_MINIMUM 10 /*%< seconds */

e44487bfc23599b6b240e09d83d1c862fecfcc82Michael Graff#define ADB_CACHE_MAXIMUM 86400 /*%< seconds (86400 = 24 hours) */

e44487bfc23599b6b240e09d83d1c862fecfcc82Michael Graff#define ADB_ENTRY_WINDOW 1800 /*%< seconds */

e44487bfc23599b6b240e09d83d1c862fecfcc82Michael Graff

98d010a24a9f1b4b45ce9791845941ef90426d0cBrian Wellington#define CLEAN_PERIOD 3600

98d010a24a9f1b4b45ce9791845941ef90426d0cBrian Wellington#define CLEAN_SECONDS 30

98d010a24a9f1b4b45ce9791845941ef90426d0cBrian Wellington#define CLEAN_BUCKETS ((NBUCKETS * CLEAN_SECONDS) / CLEAN_PERIOD)

98d010a24a9f1b4b45ce9791845941ef90426d0cBrian Wellington

98d010a24a9f1b4b45ce9791845941ef90426d0cBrian Wellington#define FREE_ITEMS 64 /*%< free count for memory pools */

98d010a24a9f1b4b45ce9791845941ef90426d0cBrian Wellington#define FILL_COUNT 16 /*%< fill count for memory pools */

98d010a24a9f1b4b45ce9791845941ef90426d0cBrian Wellington

98d010a24a9f1b4b45ce9791845941ef90426d0cBrian Wellington#define DNS_ADB_INVALIDBUCKET (-1) /*%< invalid bucket address */

98d010a24a9f1b4b45ce9791845941ef90426d0cBrian Wellington

98d010a24a9f1b4b45ce9791845941ef90426d0cBrian Wellington#define DNS_ADB_MINADBSIZE (1024*1024) /*%< 1 Megabyte */

98d010a24a9f1b4b45ce9791845941ef90426d0cBrian Wellington

98d010a24a9f1b4b45ce9791845941ef90426d0cBrian Wellingtontypedef ISC_LIST(dns_adbname_t) dns_adbnamelist_t;

98d010a24a9f1b4b45ce9791845941ef90426d0cBrian Wellingtontypedef struct dns_adbnamehook dns_adbnamehook_t;

98d010a24a9f1b4b45ce9791845941ef90426d0cBrian Wellingtontypedef ISC_LIST(dns_adbnamehook_t) dns_adbnamehooklist_t;

98d010a24a9f1b4b45ce9791845941ef90426d0cBrian Wellingtontypedef struct dns_adblameinfo dns_adblameinfo_t;

98d010a24a9f1b4b45ce9791845941ef90426d0cBrian Wellingtontypedef ISC_LIST(dns_adbentry_t) dns_adbentrylist_t;

98d010a24a9f1b4b45ce9791845941ef90426d0cBrian Wellingtontypedef struct dns_adbfetch dns_adbfetch_t;

98d010a24a9f1b4b45ce9791845941ef90426d0cBrian Wellingtontypedef struct dns_adbfetch6 dns_adbfetch6_t;

98d010a24a9f1b4b45ce9791845941ef90426d0cBrian Wellington

b5debbe212097d1c573a2ba3bd9a3d526d86b0aeBrian Wellingtonstruct dns_adb {

b5debbe212097d1c573a2ba3bd9a3d526d86b0aeBrian Wellington unsigned int magic;

b5debbe212097d1c573a2ba3bd9a3d526d86b0aeBrian Wellington

b5debbe212097d1c573a2ba3bd9a3d526d86b0aeBrian Wellington isc_mutex_t lock;

b5debbe212097d1c573a2ba3bd9a3d526d86b0aeBrian Wellington isc_mutex_t reflock; /*%< Covers irefcnt, erefcnt */

b5debbe212097d1c573a2ba3bd9a3d526d86b0aeBrian Wellington isc_mem_t *mctx;

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington dns_view_t *view;

b5debbe212097d1c573a2ba3bd9a3d526d86b0aeBrian Wellington isc_timermgr_t *timermgr;

b5debbe212097d1c573a2ba3bd9a3d526d86b0aeBrian Wellington isc_timer_t *timer;

e44487bfc23599b6b240e09d83d1c862fecfcc82Michael Graff isc_taskmgr_t *taskmgr;

b5debbe212097d1c573a2ba3bd9a3d526d86b0aeBrian Wellington isc_task_t *task;

e44487bfc23599b6b240e09d83d1c862fecfcc82Michael Graff isc_boolean_t overmem;

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington isc_interval_t tick_interval;

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington int next_cleanbucket;

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington unsigned int irefcnt;

b5debbe212097d1c573a2ba3bd9a3d526d86b0aeBrian Wellington unsigned int erefcnt;

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington isc_mutex_t mplock;

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington isc_mempool_t *nmp; /*%< dns_adbname_t */

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington isc_mempool_t *nhmp; /*%< dns_adbnamehook_t */

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington isc_mempool_t *limp; /*%< dns_adblameinfo_t */

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington isc_mempool_t *emp; /*%< dns_adbentry_t */

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson isc_mempool_t *ahmp; /*%< dns_adbfind_t */

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington isc_mempool_t *aimp; /*%< dns_adbaddrinfo_t */

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington isc_mempool_t *afmp; /*%< dns_adbfetch_t */

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington /*!

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington dns_adbnamelist_t names[NBUCKETS];

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington /*% See dns_adbnamelist_t */

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington isc_mutex_t namelocks[NBUCKETS];

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington /*% See dns_adbnamelist_t */

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington isc_boolean_t name_sd[NBUCKETS];

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington /*% See dns_adbnamelist_t */

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington unsigned int name_refcnt[NBUCKETS];

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington

b5debbe212097d1c573a2ba3bd9a3d526d86b0aeBrian Wellington /*!

3676eeb6ca95c66aae1256f37af8c990d9f25eb4Brian Wellington dns_adbentrylist_t entries[NBUCKETS];

17a3fcecd069130a5f318685493b0db5639a77c9Brian Wellington isc_mutex_t entrylocks[NBUCKETS];

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson isc_boolean_t entry_sd[NBUCKETS]; /*%< shutting down */

1b1e1fda4638334b484aa38c15f53a131c0b0fdfAndreas Gustafsson unsigned int entry_refcnt[NBUCKETS];

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington

01446841be2b73f9a2ead74056df2d5342414041Andreas Gustafsson isc_event_t cevent;

17a3fcecd069130a5f318685493b0db5639a77c9Brian Wellington isc_boolean_t cevent_sent;

3676eeb6ca95c66aae1256f37af8c990d9f25eb4Brian Wellington isc_boolean_t shutting_down;

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington isc_eventlist_t whenshutdown;

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington};

1a69a1a78cfaa86f3b68bbc965232b7876d4da2aDavid Lawrence

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellingtonstruct dns_adbname {

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington unsigned int magic;

3676eeb6ca95c66aae1256f37af8c990d9f25eb4Brian Wellington dns_name_t name;

3676eeb6ca95c66aae1256f37af8c990d9f25eb4Brian Wellington dns_adb_t *adb;

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington unsigned int partial_result;

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington unsigned int flags;

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington int lock_bucket;

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington dns_name_t target;

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington isc_stdtime_t expire_target;

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington isc_stdtime_t expire_v4;

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington isc_stdtime_t expire_v6;

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington unsigned int chains;

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington dns_adbnamehooklist_t v4;

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington dns_adbnamehooklist_t v6;

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington dns_adbfetch_t *fetch_a;

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington dns_adbfetch_t *fetch_aaaa;

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington unsigned int fetch_err;

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington unsigned int fetch6_err;

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington dns_adbfindlist_t finds;

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington ISC_LINK(dns_adbname_t) plink;

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington};

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellingtonstruct dns_adbfetch {

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington unsigned int magic;

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington dns_adbnamehook_t *namehook;

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington dns_adbentry_t *entry;

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington dns_fetch_t *fetch;

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington dns_rdataset_t rdataset;

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson};

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellingtonstruct dns_adbnamehook {

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington unsigned int magic;

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington dns_adbentry_t *entry;

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington ISC_LINK(dns_adbnamehook_t) plink;

1a69a1a78cfaa86f3b68bbc965232b7876d4da2aDavid Lawrence};

1a69a1a78cfaa86f3b68bbc965232b7876d4da2aDavid Lawrence

aa863b2d1e3739ac958c510aa7d61137860c3b7eBrian Wellingtonstruct dns_adblameinfo {

c38cf70db10594c4d23f092a65e17b123b381a60Brian Wellington unsigned int magic;

c38cf70db10594c4d23f092a65e17b123b381a60Brian Wellington

c38cf70db10594c4d23f092a65e17b123b381a60Brian Wellington dns_name_t qname;

c38cf70db10594c4d23f092a65e17b123b381a60Brian Wellington dns_rdatatype_t qtype;

c38cf70db10594c4d23f092a65e17b123b381a60Brian Wellington isc_stdtime_t lame_timer;

c38cf70db10594c4d23f092a65e17b123b381a60Brian Wellington

c38cf70db10594c4d23f092a65e17b123b381a60Brian Wellington ISC_LINK(dns_adblameinfo_t) plink;

c38cf70db10594c4d23f092a65e17b123b381a60Brian Wellington};

c38cf70db10594c4d23f092a65e17b123b381a60Brian Wellington

aa863b2d1e3739ac958c510aa7d61137860c3b7eBrian Wellingtonstruct dns_adbentry {

aa863b2d1e3739ac958c510aa7d61137860c3b7eBrian Wellington unsigned int magic;

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington

aa863b2d1e3739ac958c510aa7d61137860c3b7eBrian Wellington int lock_bucket;

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson unsigned int refcnt;

aa863b2d1e3739ac958c510aa7d61137860c3b7eBrian Wellington

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington unsigned int flags;

aa863b2d1e3739ac958c510aa7d61137860c3b7eBrian Wellington unsigned int srtt;

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington isc_sockaddr_t sockaddr;

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington

1a69a1a78cfaa86f3b68bbc965232b7876d4da2aDavid Lawrence isc_stdtime_t expires;

1a69a1a78cfaa86f3b68bbc965232b7876d4da2aDavid Lawrence /*%<

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington ISC_LIST(dns_adblameinfo_t) lameinfo;

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington ISC_LINK(dns_adbentry_t) plink;

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington};

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellingtonstatic inline dns_adbname_t *new_adbname(dns_adb_t *, dns_name_t *);

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellingtonstatic inline void free_adbname(dns_adb_t *, dns_adbname_t **);

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellingtonstatic inline dns_adbnamehook_t *new_adbnamehook(dns_adb_t *,

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington dns_adbentry_t *);

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellingtonstatic inline void free_adbnamehook(dns_adb_t *, dns_adbnamehook_t **);

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellingtonstatic inline dns_adblameinfo_t *new_adblameinfo(dns_adb_t *, dns_name_t *,

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington dns_rdatatype_t);

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellingtonstatic inline void free_adblameinfo(dns_adb_t *, dns_adblameinfo_t **);

1a69a1a78cfaa86f3b68bbc965232b7876d4da2aDavid Lawrencestatic inline dns_adbentry_t *new_adbentry(dns_adb_t *);

1a69a1a78cfaa86f3b68bbc965232b7876d4da2aDavid Lawrencestatic inline void free_adbentry(dns_adb_t *, dns_adbentry_t **);

1a69a1a78cfaa86f3b68bbc965232b7876d4da2aDavid Lawrencestatic inline dns_adbfind_t *new_adbfind(dns_adb_t *);

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafssonstatic inline isc_boolean_t free_adbfind(dns_adb_t *, dns_adbfind_t **);

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellingtonstatic inline dns_adbaddrinfo_t *new_adbaddrinfo(dns_adb_t *, dns_adbentry_t *,

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington in_port_t);

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellingtonstatic inline dns_adbfetch_t *new_adbfetch(dns_adb_t *);

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellingtonstatic inline void free_adbfetch(dns_adb_t *, dns_adbfetch_t **);

17a3fcecd069130a5f318685493b0db5639a77c9Brian Wellingtonstatic inline dns_adbname_t *find_name_and_lock(dns_adb_t *, dns_name_t *,

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson unsigned int, int *);

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellingtonstatic inline dns_adbentry_t *find_entry_and_lock(dns_adb_t *,

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington isc_sockaddr_t *, int *);

01446841be2b73f9a2ead74056df2d5342414041Andreas Gustafssonstatic void dump_adb(dns_adb_t *, FILE *, isc_boolean_t debug, isc_stdtime_t);

17a3fcecd069130a5f318685493b0db5639a77c9Brian Wellingtonstatic void print_dns_name(FILE *, dns_name_t *);

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellingtonstatic void print_namehook_list(FILE *, const char *legend,

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington dns_adbnamehooklist_t *list,

1a69a1a78cfaa86f3b68bbc965232b7876d4da2aDavid Lawrence isc_boolean_t debug,

1a69a1a78cfaa86f3b68bbc965232b7876d4da2aDavid Lawrence isc_stdtime_t now);

1a69a1a78cfaa86f3b68bbc965232b7876d4da2aDavid Lawrencestatic void print_find_list(FILE *, dns_adbname_t *);

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellingtonstatic void print_fetch_list(FILE *, dns_adbname_t *);

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellingtonstatic inline isc_boolean_t dec_adb_irefcnt(dns_adb_t *);

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellingtonstatic inline void inc_adb_irefcnt(dns_adb_t *);

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellingtonstatic inline void inc_adb_erefcnt(dns_adb_t *);

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellingtonstatic inline void inc_entry_refcnt(dns_adb_t *, dns_adbentry_t *,

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington isc_boolean_t);

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellingtonstatic inline isc_boolean_t dec_entry_refcnt(dns_adb_t *, dns_adbentry_t *,

3676eeb6ca95c66aae1256f37af8c990d9f25eb4Brian Wellington isc_boolean_t);

3676eeb6ca95c66aae1256f37af8c990d9f25eb4Brian Wellingtonstatic inline void violate_locking_hierarchy(isc_mutex_t *, isc_mutex_t *);

3676eeb6ca95c66aae1256f37af8c990d9f25eb4Brian Wellingtonstatic isc_boolean_t clean_namehooks(dns_adb_t *, dns_adbnamehooklist_t *);

3676eeb6ca95c66aae1256f37af8c990d9f25eb4Brian Wellingtonstatic void clean_target(dns_adb_t *, dns_name_t *);

3676eeb6ca95c66aae1256f37af8c990d9f25eb4Brian Wellingtonstatic void clean_finds_at_name(dns_adbname_t *, isc_eventtype_t,

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington unsigned int);

3676eeb6ca95c66aae1256f37af8c990d9f25eb4Brian Wellingtonstatic isc_boolean_t check_expire_namehooks(dns_adbname_t *, isc_stdtime_t,

3676eeb6ca95c66aae1256f37af8c990d9f25eb4Brian Wellington isc_boolean_t);

e44487bfc23599b6b240e09d83d1c862fecfcc82Michael Graffstatic void cancel_fetches_at_name(dns_adbname_t *);

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellingtonstatic isc_result_t dbfind_name(dns_adbname_t *, isc_stdtime_t,

6f071989da905bb5ab2c6dfd01a71ee5ecea5918Brian Wellington dns_rdatatype_t);

6f071989da905bb5ab2c6dfd01a71ee5ecea5918Brian Wellingtonstatic isc_result_t fetch_name(dns_adbname_t *, isc_boolean_t,

6f071989da905bb5ab2c6dfd01a71ee5ecea5918Brian Wellington dns_rdatatype_t);

6f071989da905bb5ab2c6dfd01a71ee5ecea5918Brian Wellingtonstatic inline void check_exit(dns_adb_t *);

6f071989da905bb5ab2c6dfd01a71ee5ecea5918Brian Wellingtonstatic void timer_cleanup(isc_task_t *, isc_event_t *);

6f071989da905bb5ab2c6dfd01a71ee5ecea5918Brian Wellingtonstatic void destroy(dns_adb_t *);

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellingtonstatic isc_boolean_t shutdown_names(dns_adb_t *);

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellingtonstatic isc_boolean_t shutdown_entries(dns_adb_t *);

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellingtonstatic inline void link_name(dns_adb_t *, int, dns_adbname_t *);

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellingtonstatic inline isc_boolean_t unlink_name(dns_adb_t *, dns_adbname_t *);

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellingtonstatic inline void link_entry(dns_adb_t *, int, dns_adbentry_t *);

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellingtonstatic inline isc_boolean_t unlink_entry(dns_adb_t *, dns_adbentry_t *);

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellingtonstatic isc_boolean_t kill_name(dns_adbname_t **, isc_eventtype_t);

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellingtonstatic void water(void *, int);

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafssonstatic void dump_entry(FILE *, dns_adbentry_t *, isc_boolean_t, isc_stdtime_t);

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington#define FIND_EVENT_SENT 0x40000000

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington#define FIND_EVENT_FREED 0x80000000

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington#define FIND_EVENTSENT(h) (((h)->flags & FIND_EVENT_SENT) != 0)

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington#define FIND_EVENTFREED(h) (((h)->flags & FIND_EVENT_FREED) != 0)

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington#define NAME_NEEDS_POKE 0x80000000

777ac454c0cdec27dc11d80b9b2a8d7239d833a8Brian Wellington#define NAME_IS_DEAD 0x40000000

3676eeb6ca95c66aae1256f37af8c990d9f25eb4Brian Wellington#define NAME_HINT_OK DNS_ADBFIND_HINTOK

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington#define NAME_GLUE_OK DNS_ADBFIND_GLUEOK

777ac454c0cdec27dc11d80b9b2a8d7239d833a8Brian Wellington#define NAME_STARTATZONE DNS_ADBFIND_STARTATZONE

17a3fcecd069130a5f318685493b0db5639a77c9Brian Wellington#define NAME_DEAD(n) (((n)->flags & NAME_IS_DEAD) != 0)

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson#define NAME_NEEDSPOKE(n) (((n)->flags & NAME_NEEDS_POKE) != 0)

1b1e1fda4638334b484aa38c15f53a131c0b0fdfAndreas Gustafsson#define NAME_GLUEOK(n) (((n)->flags & NAME_GLUE_OK) != 0)

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington#define NAME_HINTOK(n) (((n)->flags & NAME_HINT_OK) != 0)

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington

fe5ba8ddb55b2b3ee139e13b7891817117ad4e63Brian Wellington#define NAME_HAS_V4(n) (!ISC_LIST_EMPTY((n)->v4))

1a69a1a78cfaa86f3b68bbc965232b7876d4da2aDavid Lawrence#define NAME_HAS_V6(n) (!ISC_LIST_EMPTY((n)->v6))

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington#define NAME_HAS_ADDRS(n) (NAME_HAS_V4(n) || NAME_HAS_V6(n))

1a69a1a78cfaa86f3b68bbc965232b7876d4da2aDavid Lawrence

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington#define NAME_FETCH_A(n) ((n)->fetch_a != NULL)

e27021ee1f37185ab839a7a3b6bc078c24255e62Brian Wellington#define NAME_FETCH_AAAA(n) ((n)->fetch_aaaa != NULL)

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington#define NAME_FETCH_V4(n) (NAME_FETCH_A(n))

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington#define NAME_FETCH_V6(n) (NAME_FETCH_AAAA(n))

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrews#define NAME_FETCH(n) (NAME_FETCH_V4(n) || NAME_FETCH_V6(n))

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson#define FIND_WANTEVENT(fn) (((fn)->options & DNS_ADBFIND_WANTEVENT) != 0)

c70908209ee26c51a8e7242a56fdb73847249728Brian Wellington#define FIND_WANTEMPTYEVENT(fn) (((fn)->options & DNS_ADBFIND_EMPTYEVENT) != 0)

c70908209ee26c51a8e7242a56fdb73847249728Brian Wellington#define FIND_AVOIDFETCHES(fn) (((fn)->options & DNS_ADBFIND_AVOIDFETCHES) \

c70908209ee26c51a8e7242a56fdb73847249728Brian Wellington != 0)

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington#define FIND_STARTATZONE(fn) (((fn)->options & DNS_ADBFIND_STARTATZONE) \

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington != 0)

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson#define FIND_HINTOK(fn) (((fn)->options & DNS_ADBFIND_HINTOK) != 0)

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington#define FIND_GLUEOK(fn) (((fn)->options & DNS_ADBFIND_GLUEOK) != 0)

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington#define FIND_HAS_ADDRS(fn) (!ISC_LIST_EMPTY((fn)->list))

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington#define FIND_RETURNLAME(fn) (((fn)->options & DNS_ADBFIND_RETURNLAME) != 0)

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson#define WANT_INET(x) (((x) & DNS_ADBFIND_INET) != 0)

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington#define WANT_INET6(x) (((x) & DNS_ADBFIND_INET6) != 0)

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington#define EXPIRE_OK(exp, now) ((exp == INT_MAX) || (exp < now))

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington#define GLUE_OK(nf, o) (!NAME_GLUEOK(nf) || (((o) & DNS_ADBFIND_GLUEOK) != 0))

d1cbf714097e900ed1703529584d3e1a50e8a4a8Brian Wellington#define HINT_OK(nf, o) (!NAME_HINTOK(nf) || (((o) & DNS_ADBFIND_HINTOK) != 0))

d1cbf714097e900ed1703529584d3e1a50e8a4a8Brian Wellington#define GLUEHINT_OK(nf, o) (GLUE_OK(nf, o) || HINT_OK(nf, o))

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington#define STARTATZONE_MATCHES(nf, o) (((nf)->flags & NAME_STARTATZONE) == \

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington ((o) & DNS_ADBFIND_STARTATZONE))

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington

d1cbf714097e900ed1703529584d3e1a50e8a4a8Brian Wellington#define ENTER_LEVEL ISC_LOG_DEBUG(50)

c70908209ee26c51a8e7242a56fdb73847249728Brian Wellington#define EXIT_LEVEL ENTER_LEVEL

c70908209ee26c51a8e7242a56fdb73847249728Brian Wellington#define CLEAN_LEVEL ISC_LOG_DEBUG(100)

368b37b616234fce3d23099eb180f1dd38e1fb62Mark Andrews#define DEF_LEVEL ISC_LOG_DEBUG(5)

d1cbf714097e900ed1703529584d3e1a50e8a4a8Brian Wellington#define NCACHE_LEVEL ISC_LOG_DEBUG(20)

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington#define NCACHE_RESULT(r) ((r) == DNS_R_NCACHENXDOMAIN || \

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington (r) == DNS_R_NCACHENXRRSET)

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington#define AUTH_NX(r) ((r) == DNS_R_NXDOMAIN || \

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington (r) == DNS_R_NXRRSET)

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington#define NXDOMAIN_RESULT(r) ((r) == DNS_R_NXDOMAIN || \

e27021ee1f37185ab839a7a3b6bc078c24255e62Brian Wellington (r) == DNS_R_NCACHENXDOMAIN)

e27021ee1f37185ab839a7a3b6bc078c24255e62Brian Wellington#define NXRRSET_RESULT(r) ((r) == DNS_R_NCACHENXRRSET || \

c70908209ee26c51a8e7242a56fdb73847249728Brian Wellington (r) == DNS_R_NXRRSET || \

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson (r) == DNS_R_HINTNXRRSET)

c70908209ee26c51a8e7242a56fdb73847249728Brian Wellington

e27021ee1f37185ab839a7a3b6bc078c24255e62Brian Wellington

e27021ee1f37185ab839a7a3b6bc078c24255e62Brian Wellington#define FIND_ERR_SUCCESS 0 /* highest rank */

c70908209ee26c51a8e7242a56fdb73847249728Brian Wellington#define FIND_ERR_CANCELED 1

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson#define FIND_ERR_FAILURE 2

c70908209ee26c51a8e7242a56fdb73847249728Brian Wellington#define FIND_ERR_NXDOMAIN 3

c70908209ee26c51a8e7242a56fdb73847249728Brian Wellington#define FIND_ERR_NXRRSET 4

c70908209ee26c51a8e7242a56fdb73847249728Brian Wellington#define FIND_ERR_UNEXPECTED 5

c70908209ee26c51a8e7242a56fdb73847249728Brian Wellington#define FIND_ERR_NOTFOUND 6

d1cbf714097e900ed1703529584d3e1a50e8a4a8Brian Wellington#define FIND_ERR_MAX 7

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellingtonstatic const char *errnames[] = {

d1cbf714097e900ed1703529584d3e1a50e8a4a8Brian Wellington "success",

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington "canceled",

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington "failure",

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson "nxdomain",

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington "nxrrset",

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington "unexpected",

d1cbf714097e900ed1703529584d3e1a50e8a4a8Brian Wellington "not_found"

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson};

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington#define NEWERR(old, new) (ISC_MIN((old), (new)))

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellingtonstatic isc_result_t find_err_map[FIND_ERR_MAX] = {

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington ISC_R_SUCCESS,

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington ISC_R_CANCELED,

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington ISC_R_FAILURE,

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington DNS_R_NXDOMAIN,

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington DNS_R_NXRRSET,

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington ISC_R_UNEXPECTED,

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington ISC_R_NOTFOUND /* not YET found */

b5debbe212097d1c573a2ba3bd9a3d526d86b0aeBrian Wellington};

b5debbe212097d1c573a2ba3bd9a3d526d86b0aeBrian Wellington

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellingtonstatic void

94766449d6125cd5870891b70d46573e5deaceb4Brian WellingtonDP(int level, const char *format, ...) ISC_FORMAT_PRINTF(2, 3);

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellingtonstatic void

e27021ee1f37185ab839a7a3b6bc078c24255e62Brian WellingtonDP(int level, const char *format, ...) {

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington va_list args;

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington va_start(args, format);

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington isc_log_vwrite(dns_lctx,

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington DNS_LOGCATEGORY_DATABASE, DNS_LOGMODULE_ADB,

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington level, format, args);

6f071989da905bb5ab2c6dfd01a71ee5ecea5918Brian Wellington va_end(args);

6f071989da905bb5ab2c6dfd01a71ee5ecea5918Brian Wellington}

6f071989da905bb5ab2c6dfd01a71ee5ecea5918Brian Wellington

6f071989da905bb5ab2c6dfd01a71ee5ecea5918Brian Wellingtonstatic inline dns_ttl_t

6f071989da905bb5ab2c6dfd01a71ee5ecea5918Brian Wellingtonttlclamp(dns_ttl_t ttl) {

6f071989da905bb5ab2c6dfd01a71ee5ecea5918Brian Wellington if (ttl < ADB_CACHE_MINIMUM)

6f071989da905bb5ab2c6dfd01a71ee5ecea5918Brian Wellington ttl = ADB_CACHE_MINIMUM;

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington if (ttl > ADB_CACHE_MAXIMUM)

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington ttl = ADB_CACHE_MAXIMUM;

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington return (ttl);

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington}

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafssonstatic isc_result_t

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellingtonimport_rdataset(dns_adbname_t *adbname, dns_rdataset_t *rdataset,

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington isc_stdtime_t now)

f15af68028adc665d3bdddf955fc52bad83f0514Brian Wellington{

f15af68028adc665d3bdddf955fc52bad83f0514Brian Wellington isc_result_t result;

f15af68028adc665d3bdddf955fc52bad83f0514Brian Wellington dns_adb_t *adb;

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington dns_adbnamehook_t *nh;

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington dns_adbnamehook_t *anh;

e27021ee1f37185ab839a7a3b6bc078c24255e62Brian Wellington dns_rdata_t rdata = DNS_RDATA_INIT;

e27021ee1f37185ab839a7a3b6bc078c24255e62Brian Wellington struct in_addr ina;

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington struct in6_addr in6a;

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington isc_sockaddr_t sockaddr;

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington dns_adbentry_t *foundentry; /* NO CLEAN UP! */

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington int addr_bucket;

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington isc_boolean_t new_addresses_added;

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington dns_rdatatype_t rdtype;

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington unsigned int findoptions;

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington INSIST(DNS_ADBNAME_VALID(adbname));

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington adb = adbname->adb;

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington INSIST(DNS_ADB_VALID(adb));

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington rdtype = rdataset->type;

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington INSIST((rdtype == dns_rdatatype_a) || (rdtype == dns_rdatatype_aaaa));

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington if (rdtype == dns_rdatatype_a)

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington findoptions = DNS_ADBFIND_INET;

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington else

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington findoptions = DNS_ADBFIND_INET6;

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington addr_bucket = DNS_ADB_INVALIDBUCKET;

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington new_addresses_added = ISC_FALSE;

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington nh = NULL;

6f071989da905bb5ab2c6dfd01a71ee5ecea5918Brian Wellington result = dns_rdataset_first(rdataset);

6f071989da905bb5ab2c6dfd01a71ee5ecea5918Brian Wellington while (result == ISC_R_SUCCESS) {

6f071989da905bb5ab2c6dfd01a71ee5ecea5918Brian Wellington dns_rdata_reset(&rdata);

6f071989da905bb5ab2c6dfd01a71ee5ecea5918Brian Wellington dns_rdataset_current(rdataset, &rdata);

6f071989da905bb5ab2c6dfd01a71ee5ecea5918Brian Wellington if (rdtype == dns_rdatatype_a) {

6f071989da905bb5ab2c6dfd01a71ee5ecea5918Brian Wellington INSIST(rdata.length == 4);

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington memcpy(&ina.s_addr, rdata.data, 4);

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington isc_sockaddr_fromin(&sockaddr, &ina, 0);

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington } else {

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington INSIST(rdata.length == 16);

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington memcpy(in6a.s6_addr, rdata.data, 16);

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington isc_sockaddr_fromin6(&sockaddr, &in6a, 0);

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington }

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson INSIST(nh == NULL);

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington nh = new_adbnamehook(adb, NULL);

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington if (nh == NULL) {

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington adbname->partial_result |= findoptions;

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson result = ISC_R_NOMEMORY;

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington goto fail;

98d010a24a9f1b4b45ce9791845941ef90426d0cBrian Wellington }

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington foundentry = find_entry_and_lock(adb, &sockaddr, &addr_bucket);

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson if (foundentry == NULL) {

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington dns_adbentry_t *entry;

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington entry = new_adbentry(adb);

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington if (entry == NULL) {

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington adbname->partial_result |= findoptions;

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington result = ISC_R_NOMEMORY;

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington goto fail;

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington }

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington entry->sockaddr = sockaddr;

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington entry->refcnt = 1;

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington nh->entry = entry;

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington link_entry(adb, addr_bucket, entry);

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington } else {

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington for (anh = ISC_LIST_HEAD(adbname->v4);

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington anh != NULL;

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington anh = ISC_LIST_NEXT(anh, plink))

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington if (anh->entry == foundentry)

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington break;

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington if (anh == NULL) {

9cd6710f91bdffef5aed68ab02533e398f6134d7Brian Wellington foundentry->refcnt++;

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington nh->entry = foundentry;

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington } else

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington free_adbnamehook(adb, &nh);

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington }

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington new_addresses_added = ISC_TRUE;

6f071989da905bb5ab2c6dfd01a71ee5ecea5918Brian Wellington if (nh != NULL) {

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington if (rdtype == dns_rdatatype_a)

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington ISC_LIST_APPEND(adbname->v4, nh, plink);

6f071989da905bb5ab2c6dfd01a71ee5ecea5918Brian Wellington else

6f071989da905bb5ab2c6dfd01a71ee5ecea5918Brian Wellington ISC_LIST_APPEND(adbname->v6, nh, plink);

6f071989da905bb5ab2c6dfd01a71ee5ecea5918Brian Wellington }

6f071989da905bb5ab2c6dfd01a71ee5ecea5918Brian Wellington nh = NULL;

6f071989da905bb5ab2c6dfd01a71ee5ecea5918Brian Wellington result = dns_rdataset_next(rdataset);

6f071989da905bb5ab2c6dfd01a71ee5ecea5918Brian Wellington }

6f071989da905bb5ab2c6dfd01a71ee5ecea5918Brian Wellington

6f071989da905bb5ab2c6dfd01a71ee5ecea5918Brian Wellington fail:

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson if (nh != NULL)

f439363eeb4052fddc0e3ec648658548daa10506Brian Wellington free_adbnamehook(adb, &nh);

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson if (addr_bucket != DNS_ADB_INVALIDBUCKET)

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington UNLOCK(&adb->entrylocks[addr_bucket]);

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson

c38cf70db10594c4d23f092a65e17b123b381a60Brian Wellington if (rdataset->trust == dns_trust_glue ||

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington rdataset->trust == dns_trust_additional)

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington rdataset->ttl = ADB_CACHE_MINIMUM;

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington else

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington rdataset->ttl = ttlclamp(rdataset->ttl);

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington if (rdtype == dns_rdatatype_a) {

f439363eeb4052fddc0e3ec648658548daa10506Brian Wellington DP(NCACHE_LEVEL, "expire_v4 set to MIN(%u,%u) import_rdataset",

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington adbname->expire_v4, now + rdataset->ttl);

1a69a1a78cfaa86f3b68bbc965232b7876d4da2aDavid Lawrence adbname->expire_v4 = ISC_MIN(adbname->expire_v4,

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington now + rdataset->ttl);

1a69a1a78cfaa86f3b68bbc965232b7876d4da2aDavid Lawrence } else {

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington DP(NCACHE_LEVEL, "expire_v6 set to MIN(%u,%u) import_rdataset",

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington adbname->expire_v6, now + rdataset->ttl);

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington adbname->expire_v6 = ISC_MIN(adbname->expire_v6,

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington now + rdataset->ttl);

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington }

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington if (new_addresses_added) {

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington /*

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington return (ISC_R_SUCCESS);

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington }

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington return (result);

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrews}

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellingtonstatic isc_boolean_t

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellingtonkill_name(dns_adbname_t **n, isc_eventtype_t ev) {

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington dns_adbname_t *name;

6e49e91bd08778d7eae45a2229dcf41ed97cc636David Lawrence isc_boolean_t result = ISC_FALSE;

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington isc_boolean_t result4, result6;

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington dns_adb_t *adb;

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington INSIST(n != NULL);

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington name = *n;

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington *n = NULL;

5c29047792191d6141f69b2684314d0b762fedebBrian Wellington INSIST(DNS_ADBNAME_VALID(name));

5c29047792191d6141f69b2684314d0b762fedebBrian Wellington adb = name->adb;

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington INSIST(DNS_ADB_VALID(adb));

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington DP(DEF_LEVEL, "killing name %p", name);

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington

c50936eb40263b65ebf6afe4e6556e2dc67c10e4Brian Wellington /*

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington if (NAME_DEAD(name) && !NAME_FETCH(name)) {

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington result = unlink_name(adb, name);

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington free_adbname(adb, &name);

93c786e0924aeca2c258e32355349e6ae60a0f72Andreas Gustafsson if (result)

93c786e0924aeca2c258e32355349e6ae60a0f72Andreas Gustafsson result = dec_adb_irefcnt(adb);

93c786e0924aeca2c258e32355349e6ae60a0f72Andreas Gustafsson return (result);

93c786e0924aeca2c258e32355349e6ae60a0f72Andreas Gustafsson }

93c786e0924aeca2c258e32355349e6ae60a0f72Andreas Gustafsson

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington /*

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley clean_finds_at_name(name, ev, DNS_ADBFIND_ADDRESSMASK);

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley result4 = clean_namehooks(adb, &name->v4);

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley result6 = clean_namehooks(adb, &name->v6);

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley clean_target(adb, &name->target);

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrews result = ISC_TF(result4 || result6);

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington /*

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington if (!NAME_FETCH(name)) {

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington INSIST(result == ISC_FALSE);

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington result = unlink_name(adb, name);

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington free_adbname(adb, &name);

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley if (result)

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley result = dec_adb_irefcnt(adb);

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley } else {

feb40fc5f911d0b2050fb9fd34950a52930b981dBrian Wellington name->flags |= NAME_IS_DEAD;

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley cancel_fetches_at_name(name);

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley }

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley return (result);

6e49e91bd08778d7eae45a2229dcf41ed97cc636David Lawrence}

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halleystatic isc_boolean_t

feb40fc5f911d0b2050fb9fd34950a52930b981dBrian Wellingtoncheck_expire_namehooks(dns_adbname_t *name, isc_stdtime_t now,

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley isc_boolean_t overmem)

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley{

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington dns_adb_t *adb;

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley isc_boolean_t expire;

63bf060be4ff2a7ade02fd86abb98694a5afc250Brian Wellington isc_boolean_t result4 = ISC_FALSE;

63bf060be4ff2a7ade02fd86abb98694a5afc250Brian Wellington isc_boolean_t result6 = ISC_FALSE;

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington INSIST(DNS_ADBNAME_VALID(name));

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington adb = name->adb;

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington INSIST(DNS_ADB_VALID(adb));

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington if (overmem) {

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington isc_uint32_t val;

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington

c50936eb40263b65ebf6afe4e6556e2dc67c10e4Brian Wellington isc_random_get(&val);

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley expire = ISC_TF((val % 4) == 0);

c50936eb40263b65ebf6afe4e6556e2dc67c10e4Brian Wellington } else

368b37b616234fce3d23099eb180f1dd38e1fb62Mark Andrews expire = ISC_FALSE;

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley /*

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley if (!NAME_FETCH_V4(name) &&

feb40fc5f911d0b2050fb9fd34950a52930b981dBrian Wellington (expire || EXPIRE_OK(name->expire_v4, now))) {

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington if (NAME_HAS_V4(name)) {

c50936eb40263b65ebf6afe4e6556e2dc67c10e4Brian Wellington DP(DEF_LEVEL, "expiring v4 for name %p", name);

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington result4 = clean_namehooks(adb, &name->v4);

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley name->partial_result &= ~DNS_ADBFIND_INET;

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley }

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley name->expire_v4 = INT_MAX;

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley name->fetch_err = FIND_ERR_UNEXPECTED;

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington }

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley /*

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley if (!NAME_FETCH_V6(name) &&

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley (expire || EXPIRE_OK(name->expire_v6, now))) {

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley if (NAME_HAS_V6(name)) {

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley DP(DEF_LEVEL, "expiring v6 for name %p", name);

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley result6 = clean_namehooks(adb, &name->v6);

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley name->partial_result &= ~DNS_ADBFIND_INET6;

a9ba7e65644c50e1549b38150ba8d4787e1fe643Brian Wellington }

a9ba7e65644c50e1549b38150ba8d4787e1fe643Brian Wellington name->expire_v6 = INT_MAX;

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley name->fetch6_err = FIND_ERR_UNEXPECTED;

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley }

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley

a9ba7e65644c50e1549b38150ba8d4787e1fe643Brian Wellington /*

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley if (expire || EXPIRE_OK(name->expire_target, now)) {

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley clean_target(adb, &name->target);

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley name->expire_target = INT_MAX;

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley }

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley return (ISC_TF(result4 || result6));

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley}

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley

78951552dccf0d0004d61072bbc71fa4b1aab30fAndreas Gustafssonstatic inline void

78951552dccf0d0004d61072bbc71fa4b1aab30fAndreas Gustafssonlink_name(dns_adb_t *adb, int bucket, dns_adbname_t *name) {

78951552dccf0d0004d61072bbc71fa4b1aab30fAndreas Gustafsson INSIST(name->lock_bucket == DNS_ADB_INVALIDBUCKET);

78951552dccf0d0004d61072bbc71fa4b1aab30fAndreas Gustafsson

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington ISC_LIST_PREPEND(adb->names[bucket], name, plink);

78951552dccf0d0004d61072bbc71fa4b1aab30fAndreas Gustafsson name->lock_bucket = bucket;

78951552dccf0d0004d61072bbc71fa4b1aab30fAndreas Gustafsson adb->name_refcnt[bucket]++;

78951552dccf0d0004d61072bbc71fa4b1aab30fAndreas Gustafsson}

78951552dccf0d0004d61072bbc71fa4b1aab30fAndreas Gustafsson

78951552dccf0d0004d61072bbc71fa4b1aab30fAndreas Gustafssonstatic inline isc_boolean_t

78951552dccf0d0004d61072bbc71fa4b1aab30fAndreas Gustafssonunlink_name(dns_adb_t *adb, dns_adbname_t *name) {

a9ba7e65644c50e1549b38150ba8d4787e1fe643Brian Wellington int bucket;

a9ba7e65644c50e1549b38150ba8d4787e1fe643Brian Wellington isc_boolean_t result = ISC_FALSE;

a9ba7e65644c50e1549b38150ba8d4787e1fe643Brian Wellington

a9ba7e65644c50e1549b38150ba8d4787e1fe643Brian Wellington bucket = name->lock_bucket;

a9ba7e65644c50e1549b38150ba8d4787e1fe643Brian Wellington INSIST(bucket != DNS_ADB_INVALIDBUCKET);

a9ba7e65644c50e1549b38150ba8d4787e1fe643Brian Wellington

a9ba7e65644c50e1549b38150ba8d4787e1fe643Brian Wellington ISC_LIST_UNLINK(adb->names[bucket], name, plink);

a9ba7e65644c50e1549b38150ba8d4787e1fe643Brian Wellington name->lock_bucket = DNS_ADB_INVALIDBUCKET;

a9ba7e65644c50e1549b38150ba8d4787e1fe643Brian Wellington INSIST(adb->name_refcnt[bucket] > 0);

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson adb->name_refcnt[bucket]--;

a9ba7e65644c50e1549b38150ba8d4787e1fe643Brian Wellington if (adb->name_sd[bucket] && adb->name_refcnt[bucket] == 0)

a9ba7e65644c50e1549b38150ba8d4787e1fe643Brian Wellington result = ISC_TRUE;

a9ba7e65644c50e1549b38150ba8d4787e1fe643Brian Wellington return (result);

a9ba7e65644c50e1549b38150ba8d4787e1fe643Brian Wellington}

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellingtonstatic inline void

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellingtonlink_entry(dns_adb_t *adb, int bucket, dns_adbentry_t *entry) {

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington ISC_LIST_PREPEND(adb->entries[bucket], entry, plink);

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley entry->lock_bucket = bucket;

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley adb->entry_refcnt[bucket]++;

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley}

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halleystatic inline isc_boolean_t

77c67dfb2607618f5e7940486daebafd42a502abBrian Wellingtonunlink_entry(dns_adb_t *adb, dns_adbentry_t *entry) {

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington int bucket;

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington isc_boolean_t result = ISC_FALSE;

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley bucket = entry->lock_bucket;

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley INSIST(bucket != DNS_ADB_INVALIDBUCKET);

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley

3676eeb6ca95c66aae1256f37af8c990d9f25eb4Brian Wellington ISC_LIST_UNLINK(adb->entries[bucket], entry, plink);

3676eeb6ca95c66aae1256f37af8c990d9f25eb4Brian Wellington entry->lock_bucket = DNS_ADB_INVALIDBUCKET;

ec371edc34e2adb9e337b774d1a6e613f5863655Brian Wellington INSIST(adb->entry_refcnt[bucket] > 0);

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington adb->entry_refcnt[bucket]--;

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington if (adb->entry_sd[bucket] && adb->entry_refcnt[bucket] == 0)

3676eeb6ca95c66aae1256f37af8c990d9f25eb4Brian Wellington result = ISC_TRUE;

3676eeb6ca95c66aae1256f37af8c990d9f25eb4Brian Wellington return (result);

3676eeb6ca95c66aae1256f37af8c990d9f25eb4Brian Wellington}

3676eeb6ca95c66aae1256f37af8c990d9f25eb4Brian Wellington

3676eeb6ca95c66aae1256f37af8c990d9f25eb4Brian Wellingtonstatic inline void

3676eeb6ca95c66aae1256f37af8c990d9f25eb4Brian Wellingtonviolate_locking_hierarchy(isc_mutex_t *have, isc_mutex_t *want) {

3676eeb6ca95c66aae1256f37af8c990d9f25eb4Brian Wellington if (isc_mutex_trylock(want) != ISC_R_SUCCESS) {

3676eeb6ca95c66aae1256f37af8c990d9f25eb4Brian Wellington UNLOCK(have);

3676eeb6ca95c66aae1256f37af8c990d9f25eb4Brian Wellington LOCK(want);

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington LOCK(have);

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley }

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington}

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellingtonstatic isc_boolean_t

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellingtonshutdown_names(dns_adb_t *adb) {

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington int bucket;

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington isc_boolean_t result = ISC_FALSE;

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington dns_adbname_t *name;

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington dns_adbname_t *next_name;

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley for (bucket = 0; bucket < NBUCKETS; bucket++) {

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley LOCK(&adb->namelocks[bucket]);

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson adb->name_sd[bucket] = ISC_TRUE;

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington name = ISC_LIST_HEAD(adb->names[bucket]);

77c67dfb2607618f5e7940486daebafd42a502abBrian Wellington if (name == NULL) {

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley /*

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley INSIST(result == ISC_FALSE);

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley result = dec_adb_irefcnt(adb);

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley } else {

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley /*

b5debbe212097d1c573a2ba3bd9a3d526d86b0aeBrian Wellington while (name != NULL) {

b5debbe212097d1c573a2ba3bd9a3d526d86b0aeBrian Wellington next_name = ISC_LIST_NEXT(name, plink);

b5debbe212097d1c573a2ba3bd9a3d526d86b0aeBrian Wellington INSIST(result == ISC_FALSE);

b5debbe212097d1c573a2ba3bd9a3d526d86b0aeBrian Wellington result = kill_name(&name,

e44487bfc23599b6b240e09d83d1c862fecfcc82Michael Graff DNS_EVENT_ADBSHUTDOWN);

b5debbe212097d1c573a2ba3bd9a3d526d86b0aeBrian Wellington name = next_name;

b5debbe212097d1c573a2ba3bd9a3d526d86b0aeBrian Wellington }

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington }

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington

b5debbe212097d1c573a2ba3bd9a3d526d86b0aeBrian Wellington UNLOCK(&adb->namelocks[bucket]);

b5debbe212097d1c573a2ba3bd9a3d526d86b0aeBrian Wellington }

b5debbe212097d1c573a2ba3bd9a3d526d86b0aeBrian Wellington return (result);

b5debbe212097d1c573a2ba3bd9a3d526d86b0aeBrian Wellington}

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halleystatic isc_boolean_t

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halleyshutdown_entries(dns_adb_t *adb) {

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley int bucket;

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley isc_boolean_t result = ISC_FALSE;

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley dns_adbentry_t *entry;

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley dns_adbentry_t *next_entry;

77c67dfb2607618f5e7940486daebafd42a502abBrian Wellington

77c67dfb2607618f5e7940486daebafd42a502abBrian Wellington for (bucket = 0; bucket < NBUCKETS; bucket++) {

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington LOCK(&adb->entrylocks[bucket]);

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington adb->entry_sd[bucket] = ISC_TRUE;

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley entry = ISC_LIST_HEAD(adb->entries[bucket]);

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley if (entry == NULL) {

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley /*

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington result = dec_adb_irefcnt(adb);

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington } else {

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington /*

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrews while (entry != NULL) {

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington next_entry = ISC_LIST_NEXT(entry, plink);

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington if (entry->refcnt == 0 &&

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington entry->expires != 0) {

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington result = unlink_entry(adb, entry);

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington free_adbentry(adb, &entry);

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington if (result)

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington result = dec_adb_irefcnt(adb);

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington }

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington entry = next_entry;

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington }

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington }

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington UNLOCK(&adb->entrylocks[bucket]);

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington }

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington return (result);

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington}

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellingtonstatic void

26e5029fd55434db52702313a49e3dc7d47bd328Brian Wellingtoncancel_fetches_at_name(dns_adbname_t *name) {

26e5029fd55434db52702313a49e3dc7d47bd328Brian Wellington if (NAME_FETCH_A(name))

26e5029fd55434db52702313a49e3dc7d47bd328Brian Wellington dns_resolver_cancelfetch(name->fetch_a->fetch);

26e5029fd55434db52702313a49e3dc7d47bd328Brian Wellington

26e5029fd55434db52702313a49e3dc7d47bd328Brian Wellington if (NAME_FETCH_AAAA(name))

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington dns_resolver_cancelfetch(name->fetch_aaaa->fetch);

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington}

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellingtonstatic isc_boolean_t

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellingtonclean_namehooks(dns_adb_t *adb, dns_adbnamehooklist_t *namehooks) {

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington dns_adbentry_t *entry;

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington dns_adbnamehook_t *namehook;

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington int addr_bucket;

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington isc_boolean_t result = ISC_FALSE;

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington addr_bucket = DNS_ADB_INVALIDBUCKET;

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington namehook = ISC_LIST_HEAD(*namehooks);

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington while (namehook != NULL) {

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington INSIST(DNS_ADBNAMEHOOK_VALID(namehook));

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington /*

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington entry = namehook->entry;

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington if (entry != NULL) {

3ce4b8b03ebd017c1d1b320429219ba91e705ea4Andreas Gustafsson INSIST(DNS_ADBENTRY_VALID(entry));

3ce4b8b03ebd017c1d1b320429219ba91e705ea4Andreas Gustafsson

3ce4b8b03ebd017c1d1b320429219ba91e705ea4Andreas Gustafsson if (addr_bucket != entry->lock_bucket) {

3ce4b8b03ebd017c1d1b320429219ba91e705ea4Andreas Gustafsson if (addr_bucket != DNS_ADB_INVALIDBUCKET)

3ce4b8b03ebd017c1d1b320429219ba91e705ea4Andreas Gustafsson UNLOCK(&adb->entrylocks[addr_bucket]);

3ce4b8b03ebd017c1d1b320429219ba91e705ea4Andreas Gustafsson addr_bucket = entry->lock_bucket;

3ce4b8b03ebd017c1d1b320429219ba91e705ea4Andreas Gustafsson LOCK(&adb->entrylocks[addr_bucket]);

3ce4b8b03ebd017c1d1b320429219ba91e705ea4Andreas Gustafsson }

3ce4b8b03ebd017c1d1b320429219ba91e705ea4Andreas Gustafsson

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley result = dec_entry_refcnt(adb, entry, ISC_FALSE);

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley }

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley /*

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley namehook->entry = NULL;

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley ISC_LIST_UNLINK(*namehooks, namehook, plink);

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley free_adbnamehook(adb, &namehook);

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley namehook = ISC_LIST_HEAD(*namehooks);

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley }

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington if (addr_bucket != DNS_ADB_INVALIDBUCKET)

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington UNLOCK(&adb->entrylocks[addr_bucket]);

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington return (result);

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington}

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellingtonstatic void

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellingtonclean_target(dns_adb_t *adb, dns_name_t *target) {

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington if (dns_name_countlabels(target) > 0) {

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington dns_name_free(target, adb->mctx);

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington dns_name_init(target, NULL);

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington }

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington}

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellingtonstatic isc_result_t

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellingtonset_target(dns_adb_t *adb, dns_name_t *name, dns_name_t *fname,

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington dns_rdataset_t *rdataset, dns_name_t *target)

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington{

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington isc_result_t result;

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington dns_namereln_t namereln;

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington unsigned int nlabels;

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington int order;

93c786e0924aeca2c258e32355349e6ae60a0f72Andreas Gustafsson dns_rdata_t rdata = DNS_RDATA_INIT;

1a69a1a78cfaa86f3b68bbc965232b7876d4da2aDavid Lawrence dns_fixedname_t fixed1, fixed2;

78951552dccf0d0004d61072bbc71fa4b1aab30fAndreas Gustafsson dns_name_t *prefix, *new_target;

1a69a1a78cfaa86f3b68bbc965232b7876d4da2aDavid Lawrence

93c786e0924aeca2c258e32355349e6ae60a0f72Andreas Gustafsson REQUIRE(dns_name_countlabels(target) == 0);

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson

93c786e0924aeca2c258e32355349e6ae60a0f72Andreas Gustafsson if (rdataset->type == dns_rdatatype_cname) {

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley dns_rdata_cname_t cname;

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley

93c786e0924aeca2c258e32355349e6ae60a0f72Andreas Gustafsson /*

93c786e0924aeca2c258e32355349e6ae60a0f72Andreas Gustafsson result = dns_rdataset_first(rdataset);

93c786e0924aeca2c258e32355349e6ae60a0f72Andreas Gustafsson if (result != ISC_R_SUCCESS)

368b37b616234fce3d23099eb180f1dd38e1fb62Mark Andrews return (result);

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley dns_rdataset_current(rdataset, &rdata);

fe5ba8ddb55b2b3ee139e13b7891817117ad4e63Brian Wellington result = dns_rdata_tostruct(&rdata, &cname, NULL);

fe5ba8ddb55b2b3ee139e13b7891817117ad4e63Brian Wellington if (result != ISC_R_SUCCESS)

f3ca27e9fe307b55e35ea8d7b37351650630e5a3Andreas Gustafsson return (result);

b5debbe212097d1c573a2ba3bd9a3d526d86b0aeBrian Wellington result = dns_name_dup(&cname.cname, adb->mctx, target);

f3ca27e9fe307b55e35ea8d7b37351650630e5a3Andreas Gustafsson dns_rdata_freestruct(&cname);

b5debbe212097d1c573a2ba3bd9a3d526d86b0aeBrian Wellington if (result != ISC_R_SUCCESS)

b5debbe212097d1c573a2ba3bd9a3d526d86b0aeBrian Wellington return (result);

1f1d36a87b65186d9f89aac7f456ab1fd2a39ef6Andreas Gustafsson } else {

1f1d36a87b65186d9f89aac7f456ab1fd2a39ef6Andreas Gustafsson dns_rdata_dname_t dname;

1f1d36a87b65186d9f89aac7f456ab1fd2a39ef6Andreas Gustafsson

40f53fa8d9c6a4fc38c0014495e7a42b08f52481David Lawrence INSIST(rdataset->type == dns_rdatatype_dname);

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley namereln = dns_name_fullcompare(name, fname, &order, &nlabels);

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley INSIST(namereln == dns_namereln_subdomain);

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley /*

40f53fa8d9c6a4fc38c0014495e7a42b08f52481David Lawrence result = dns_rdataset_first(rdataset);

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley if (result != ISC_R_SUCCESS)

b5debbe212097d1c573a2ba3bd9a3d526d86b0aeBrian Wellington return (result);

93c786e0924aeca2c258e32355349e6ae60a0f72Andreas Gustafsson dns_rdataset_current(rdataset, &rdata);

93c786e0924aeca2c258e32355349e6ae60a0f72Andreas Gustafsson result = dns_rdata_tostruct(&rdata, &dname, NULL);

0a3e2e1d590dac7fb011e72bd3a4982c179d8e68Brian Wellington if (result != ISC_R_SUCCESS)

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley return (result);

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley /*

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington dns_fixedname_init(&fixed1);

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington prefix = dns_fixedname_name(&fixed1);

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson dns_fixedname_init(&fixed2);

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington new_target = dns_fixedname_name(&fixed2);

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington dns_name_split(name, nlabels, prefix, NULL);

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington result = dns_name_concatenate(prefix, &dname.dname, new_target,

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington NULL);

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington dns_rdata_freestruct(&dname);

ba393f380e4cd93029f6a7291d6c2d14f9022b3cBrian Wellington if (result != ISC_R_SUCCESS)

6bc1a645619a14707da68b130dafe41721fd2f25Brian Wellington return (result);

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington result = dns_name_dup(new_target, adb->mctx, target);

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington if (result != ISC_R_SUCCESS)

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington return (result);

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington }

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson

ba393f380e4cd93029f6a7291d6c2d14f9022b3cBrian Wellington return (ISC_R_SUCCESS);

ba393f380e4cd93029f6a7291d6c2d14f9022b3cBrian Wellington}

ba393f380e4cd93029f6a7291d6c2d14f9022b3cBrian Wellington

e49c834de8cdf92d4b85ef0fbf1d9dc59620a342Brian Wellingtonstatic void

e49c834de8cdf92d4b85ef0fbf1d9dc59620a342Brian Wellingtonevent_free(isc_event_t *event) {

e49c834de8cdf92d4b85ef0fbf1d9dc59620a342Brian Wellington dns_adbfind_t *find;

e49c834de8cdf92d4b85ef0fbf1d9dc59620a342Brian Wellington

e49c834de8cdf92d4b85ef0fbf1d9dc59620a342Brian Wellington INSIST(event != NULL);

e49c834de8cdf92d4b85ef0fbf1d9dc59620a342Brian Wellington find = event->ev_destroy_arg;

e49c834de8cdf92d4b85ef0fbf1d9dc59620a342Brian Wellington INSIST(DNS_ADBFIND_VALID(find));

e49c834de8cdf92d4b85ef0fbf1d9dc59620a342Brian Wellington

e49c834de8cdf92d4b85ef0fbf1d9dc59620a342Brian Wellington LOCK(&find->lock);

ba393f380e4cd93029f6a7291d6c2d14f9022b3cBrian Wellington find->flags |= FIND_EVENT_FREED;

e49c834de8cdf92d4b85ef0fbf1d9dc59620a342Brian Wellington event->ev_destroy_arg = NULL;

ba393f380e4cd93029f6a7291d6c2d14f9022b3cBrian Wellington UNLOCK(&find->lock);

feb40fc5f911d0b2050fb9fd34950a52930b981dBrian Wellington}

feb40fc5f911d0b2050fb9fd34950a52930b981dBrian Wellington

ba393f380e4cd93029f6a7291d6c2d14f9022b3cBrian Wellingtonstatic void

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellingtonclean_finds_at_name(dns_adbname_t *name, isc_eventtype_t evtype,

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson unsigned int addrs)

d6643ef587324e40d8bda63e9f80be8141e101edBrian Wellington{

75f6c57d9544aa77a3b1a04587b4702c07343c90Brian Wellington isc_event_t *ev;

75f6c57d9544aa77a3b1a04587b4702c07343c90Brian Wellington isc_task_t *task;

75f6c57d9544aa77a3b1a04587b4702c07343c90Brian Wellington dns_adbfind_t *find;

75f6c57d9544aa77a3b1a04587b4702c07343c90Brian Wellington dns_adbfind_t *next_find;

75f6c57d9544aa77a3b1a04587b4702c07343c90Brian Wellington isc_boolean_t process;

75f6c57d9544aa77a3b1a04587b4702c07343c90Brian Wellington unsigned int wanted, notify;

75f6c57d9544aa77a3b1a04587b4702c07343c90Brian Wellington

75f6c57d9544aa77a3b1a04587b4702c07343c90Brian Wellington DP(ENTER_LEVEL,

75f6c57d9544aa77a3b1a04587b4702c07343c90Brian Wellington "ENTER clean_finds_at_name, name %p, evtype %08x, addrs %08x",

75f6c57d9544aa77a3b1a04587b4702c07343c90Brian Wellington name, evtype, addrs);

75f6c57d9544aa77a3b1a04587b4702c07343c90Brian Wellington

75f6c57d9544aa77a3b1a04587b4702c07343c90Brian Wellington find = ISC_LIST_HEAD(name->finds);

75f6c57d9544aa77a3b1a04587b4702c07343c90Brian Wellington while (find != NULL) {

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington LOCK(&find->lock);

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington next_find = ISC_LIST_NEXT(find, plink);

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington

feb40fc5f911d0b2050fb9fd34950a52930b981dBrian Wellington process = ISC_FALSE;

feb40fc5f911d0b2050fb9fd34950a52930b981dBrian Wellington wanted = find->flags & DNS_ADBFIND_ADDRESSMASK;

feb40fc5f911d0b2050fb9fd34950a52930b981dBrian Wellington notify = wanted & addrs;

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington switch (evtype) {

feb40fc5f911d0b2050fb9fd34950a52930b981dBrian Wellington case DNS_EVENT_ADBMOREADDRESSES:

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington DP(ISC_LOG_DEBUG(3), "DNS_EVENT_ADBMOREADDRESSES");

feb40fc5f911d0b2050fb9fd34950a52930b981dBrian Wellington if ((notify) != 0) {

187604c1adfe841d909d4a8453b6900e652f7f6dBrian Wellington find->flags &= ~addrs;

b5debbe212097d1c573a2ba3bd9a3d526d86b0aeBrian Wellington process = ISC_TRUE;

538fea1c91c68c0a5569c7b8552c8fd0490055efBrian Wellington }

538fea1c91c68c0a5569c7b8552c8fd0490055efBrian Wellington break;

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson case DNS_EVENT_ADBNOMOREADDRESSES:

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington DP(ISC_LOG_DEBUG(3), "DNS_EVENT_ADBNOMOREADDRESSES");

538fea1c91c68c0a5569c7b8552c8fd0490055efBrian Wellington find->flags &= ~addrs;

b5debbe212097d1c573a2ba3bd9a3d526d86b0aeBrian Wellington wanted = find->flags & DNS_ADBFIND_ADDRESSMASK;

777ac454c0cdec27dc11d80b9b2a8d7239d833a8Brian Wellington if (wanted == 0)

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson process = ISC_TRUE;

777ac454c0cdec27dc11d80b9b2a8d7239d833a8Brian Wellington break;

e49c834de8cdf92d4b85ef0fbf1d9dc59620a342Brian Wellington default:

93c786e0924aeca2c258e32355349e6ae60a0f72Andreas Gustafsson find->flags &= ~addrs;

c70908209ee26c51a8e7242a56fdb73847249728Brian Wellington process = ISC_TRUE;

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson }

c70908209ee26c51a8e7242a56fdb73847249728Brian Wellington

c70908209ee26c51a8e7242a56fdb73847249728Brian Wellington if (process) {

c70908209ee26c51a8e7242a56fdb73847249728Brian Wellington DP(DEF_LEVEL, "cfan: processing find %p", find);

c70908209ee26c51a8e7242a56fdb73847249728Brian Wellington /*

0ec4b862c9abd11c82c88ed62438f0cf06fed25dBob Halley ISC_LIST_UNLINK(name->finds, find, plink);

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington find->adbname = NULL;

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington find->name_bucket = DNS_ADB_INVALIDBUCKET;

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington INSIST(!FIND_EVENTSENT(find));

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington ev = &find->event;

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington task = ev->ev_sender;

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington ev->ev_sender = find;

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington find->result_v4 = find_err_map[name->fetch_err];

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington find->result_v6 = find_err_map[name->fetch6_err];

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington ev->ev_type = evtype;

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington ev->ev_destroy = event_free;

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington ev->ev_destroy_arg = find;

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington DP(DEF_LEVEL,

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington "sending event %p to task %p for find %p",

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington ev, task, find);

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington isc_task_sendanddetach(&task, (isc_event_t **)&ev);

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington } else {

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington DP(DEF_LEVEL, "cfan: skipping find %p", find);

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington }

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington UNLOCK(&find->lock);

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington find = next_find;

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington }

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington DP(ENTER_LEVEL, "EXIT clean_finds_at_name, name %p", name);

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington}

f15af68028adc665d3bdddf955fc52bad83f0514Brian Wellington

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellingtonstatic inline void

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellingtoncheck_exit(dns_adb_t *adb) {

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington isc_event_t *event;

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington /*

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington if (adb->shutting_down) {

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington /*

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington INSIST(!adb->cevent_sent); /* Sanity check. */

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington event = &adb->cevent;

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington isc_task_send(adb->task, &event);

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington adb->cevent_sent = ISC_TRUE;

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington }

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington}

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellingtonstatic inline isc_boolean_t

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellingtondec_adb_irefcnt(dns_adb_t *adb) {

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington isc_event_t *event;

d6be55c63f83194d97a565d0fd7b632b31b52a68Brian Wellington isc_task_t *etask;

d6be55c63f83194d97a565d0fd7b632b31b52a68Brian Wellington isc_boolean_t result = ISC_FALSE;

d6be55c63f83194d97a565d0fd7b632b31b52a68Brian Wellington

d6be55c63f83194d97a565d0fd7b632b31b52a68Brian Wellington LOCK(&adb->reflock);

d6be55c63f83194d97a565d0fd7b632b31b52a68Brian Wellington

d6be55c63f83194d97a565d0fd7b632b31b52a68Brian Wellington INSIST(adb->irefcnt > 0);

d6be55c63f83194d97a565d0fd7b632b31b52a68Brian Wellington adb->irefcnt--;

d6be55c63f83194d97a565d0fd7b632b31b52a68Brian Wellington

d6be55c63f83194d97a565d0fd7b632b31b52a68Brian Wellington if (adb->irefcnt == 0) {

d6be55c63f83194d97a565d0fd7b632b31b52a68Brian Wellington event = ISC_LIST_HEAD(adb->whenshutdown);

32b2cdf212de957e3f9b0efca59f098ed4fb42deBrian Wellington while (event != NULL) {

32b2cdf212de957e3f9b0efca59f098ed4fb42deBrian Wellington ISC_LIST_UNLINK(adb->whenshutdown, event, ev_link);

32b2cdf212de957e3f9b0efca59f098ed4fb42deBrian Wellington etask = event->ev_sender;

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrews event->ev_sender = adb;

32b2cdf212de957e3f9b0efca59f098ed4fb42deBrian Wellington isc_task_sendanddetach(&etask, &event);

32b2cdf212de957e3f9b0efca59f098ed4fb42deBrian Wellington event = ISC_LIST_HEAD(adb->whenshutdown);

32b2cdf212de957e3f9b0efca59f098ed4fb42deBrian Wellington }

32b2cdf212de957e3f9b0efca59f098ed4fb42deBrian Wellington }

32b2cdf212de957e3f9b0efca59f098ed4fb42deBrian Wellington

c70908209ee26c51a8e7242a56fdb73847249728Brian Wellington if (adb->irefcnt == 0 && adb->erefcnt == 0)

c70908209ee26c51a8e7242a56fdb73847249728Brian Wellington result = ISC_TRUE;

32b2cdf212de957e3f9b0efca59f098ed4fb42deBrian Wellington UNLOCK(&adb->reflock);

32b2cdf212de957e3f9b0efca59f098ed4fb42deBrian Wellington return (result);

32b2cdf212de957e3f9b0efca59f098ed4fb42deBrian Wellington}

32b2cdf212de957e3f9b0efca59f098ed4fb42deBrian Wellington

32b2cdf212de957e3f9b0efca59f098ed4fb42deBrian Wellingtonstatic inline void

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellingtoninc_adb_irefcnt(dns_adb_t *adb) {

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington LOCK(&adb->reflock);

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington adb->irefcnt++;

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington UNLOCK(&adb->reflock);

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington}

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellingtonstatic inline void

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellingtoninc_adb_erefcnt(dns_adb_t *adb) {

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington LOCK(&adb->reflock);

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington adb->erefcnt++;

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington UNLOCK(&adb->reflock);

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington}

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellingtonstatic inline void

40f53fa8d9c6a4fc38c0014495e7a42b08f52481David Lawrenceinc_entry_refcnt(dns_adb_t *adb, dns_adbentry_t *entry, isc_boolean_t lock) {

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington int bucket;

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington bucket = entry->lock_bucket;

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington if (lock)

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington LOCK(&adb->entrylocks[bucket]);

777ac454c0cdec27dc11d80b9b2a8d7239d833a8Brian Wellington

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington entry->refcnt++;

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington if (lock)

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington UNLOCK(&adb->entrylocks[bucket]);

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington}

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellingtonstatic inline isc_boolean_t

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellingtondec_entry_refcnt(dns_adb_t *adb, dns_adbentry_t *entry, isc_boolean_t lock) {

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington int bucket;

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington isc_boolean_t destroy_entry;

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington isc_boolean_t result = ISC_FALSE;

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington bucket = entry->lock_bucket;

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson if (lock)

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington LOCK(&adb->entrylocks[bucket]);

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington INSIST(entry->refcnt > 0);

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson entry->refcnt--;

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington destroy_entry = ISC_FALSE;

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington if (entry->refcnt == 0 &&

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington (adb->entry_sd[bucket] || entry->expires == 0)) {

e83cae7fa837e4757c687035d6f6c0900f152749Brian Wellington destroy_entry = ISC_TRUE;

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington result = unlink_entry(adb, entry);

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington }

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington if (lock)

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington UNLOCK(&adb->entrylocks[bucket]);

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington if (!destroy_entry)

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington return (result);

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington entry->lock_bucket = DNS_ADB_INVALIDBUCKET;

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington

e27021ee1f37185ab839a7a3b6bc078c24255e62Brian Wellington free_adbentry(adb, &entry);

e27021ee1f37185ab839a7a3b6bc078c24255e62Brian Wellington if (result)

e27021ee1f37185ab839a7a3b6bc078c24255e62Brian Wellington result =dec_adb_irefcnt(adb);

e27021ee1f37185ab839a7a3b6bc078c24255e62Brian Wellington

e27021ee1f37185ab839a7a3b6bc078c24255e62Brian Wellington return (result);

e27021ee1f37185ab839a7a3b6bc078c24255e62Brian Wellington}

e27021ee1f37185ab839a7a3b6bc078c24255e62Brian Wellington

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellingtonstatic inline dns_adbname_t *

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellingtonnew_adbname(dns_adb_t *adb, dns_name_t *dnsname) {

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington dns_adbname_t *name;

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington name = isc_mempool_get(adb->nmp);

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington if (name == NULL)

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington return (NULL);

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington dns_name_init(&name->name, NULL);

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington if (dns_name_dup(dnsname, adb->mctx, &name->name) != ISC_R_SUCCESS) {

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington isc_mempool_put(adb->nmp, name);

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington return (NULL);

25496cebadd170fd5fae2aabf0469eef551259aaBrian Wellington }

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington dns_name_init(&name->target, NULL);

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington name->magic = DNS_ADBNAME_MAGIC;

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington name->adb = adb;

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson name->partial_result = 0;

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington name->flags = 0;

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington name->expire_v4 = INT_MAX;

94766449d6125cd5870891b70d46573e5deaceb4Brian Wellington name->expire_v6 = INT_MAX;

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington name->expire_target = INT_MAX;

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington name->chains = 0;

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington name->lock_bucket = DNS_ADB_INVALIDBUCKET;

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington ISC_LIST_INIT(name->v4);

6036112f4874637240d461c3ccbcb8dbfb1f405bAndreas Gustafsson ISC_LIST_INIT(name->v6);

6036112f4874637240d461c3ccbcb8dbfb1f405bAndreas Gustafsson name->fetch_a = NULL;

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington name->fetch_aaaa = NULL;

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington name->fetch_err = FIND_ERR_UNEXPECTED;

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington name->fetch6_err = FIND_ERR_UNEXPECTED;

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington ISC_LIST_INIT(name->finds);

5c6117688525d0e8d247f50c63364f66bd8d4185Brian Wellington ISC_LINK_INIT(name, plink);

48ed268b3378a8b729a0037bc4ae2ed73647a96aBrian Wellington

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington return (name);

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington}

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellingtonstatic inline void

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellingtonfree_adbname(dns_adb_t *adb, dns_adbname_t **name) {

613efcd8fbd0d1ce0d0afd1ac85d95cf85bffc27Brian Wellington dns_adbname_t *n;

ca9af3aaf798f98624fc1dc69d8c7d51bf01334dBrian Wellington

6036112f4874637240d461c3ccbcb8dbfb1f405bAndreas Gustafsson INSIST(name != NULL && DNS_ADBNAME_VALID(*name));

34aa7909371f13b4bc0ba6d155cfc38bfa1e3c5cAndreas Gustafsson n = *name;

6036112f4874637240d461c3ccbcb8dbfb1f405bAndreas Gustafsson *name = NULL;

6036112f4874637240d461c3ccbcb8dbfb1f405bAndreas Gustafsson

6036112f4874637240d461c3ccbcb8dbfb1f405bAndreas Gustafsson INSIST(!NAME_HAS_V4(n));