5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence#define DUMP_ADB_AFTER_CLEANING

21f1794606dce19928cf455029e173321f166380Mark Andrews

973a19342597823f111fce6a8cd5adfd0e2e7c0dMark Andrews#include <config.h>

0c310d16b05ee94743d33f6920907edee6084fc8Michael Graff

1a69a1a78cfaa86f3b68bbc965232b7876d4da2aDavid Lawrence#include <limits.h>

1a69a1a78cfaa86f3b68bbc965232b7876d4da2aDavid Lawrence

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

058e44186b74531402c1f99088eb9dbe4926f8daMark Andrews#include <isc/random.h>

28b863e609ff2d97b78663b46894494cfa2ea411Mark Andrews#include <isc/string.h> /* Required for HP/UX (and others?) */

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

21825a8d005ccc2dfaf12889bf9eef3413555277Brian Wellington#include <isc/timer.h>

307d2084502eddc7ce921e5ce439aec3531d90e0Tatuya JINMEI 神明達哉#include <isc/util.h>

1a69a1a78cfaa86f3b68bbc965232b7876d4da2aDavid Lawrence

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews#include <dns/a6.h>

a98551ef592e9be6008e0141ceeb32efd586c5efMark Andrews#include <dns/adb.h>

1a69a1a78cfaa86f3b68bbc965232b7876d4da2aDavid Lawrence#include <dns/db.h>

a98551ef592e9be6008e0141ceeb32efd586c5efMark Andrews#include <dns/events.h>

1a69a1a78cfaa86f3b68bbc965232b7876d4da2aDavid Lawrence#include <dns/log.h>

54c26ab21c61c6d6b1e484bb88dc3ac263845d17Mark Andrews#include <dns/rdata.h>

3ddd92da6651bc72aa79a04195ad389d86fd1a66Andreas Gustafsson#include <dns/rdataset.h>

5fc7ba3e1ac5d72239e9971e0f469dd5796738f9Andreas Gustafsson#include <dns/resolver.h>

5fc7ba3e1ac5d72239e9971e0f469dd5796738f9Andreas Gustafsson#include <dns/result.h>

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

9ac7076ebad044afb15e9e2687e3696868778538Mark Andrews#define DNS_ADB_MAGIC 0x44616462 /* Dadb. */

9ac7076ebad044afb15e9e2687e3696868778538Mark Andrews#define DNS_ADB_VALID(x) ISC_MAGIC_VALID(x, DNS_ADB_MAGIC)

9ac7076ebad044afb15e9e2687e3696868778538Mark Andrews#define DNS_ADBNAME_MAGIC 0x6164624e /* adbN. */

9ac7076ebad044afb15e9e2687e3696868778538Mark Andrews#define DNS_ADBNAME_VALID(x) ISC_MAGIC_VALID(x, DNS_ADBNAME_MAGIC)

9ac7076ebad044afb15e9e2687e3696868778538Mark Andrews#define DNS_ADBNAMEHOOK_MAGIC 0x61644e48 /* adNH. */

9ac7076ebad044afb15e9e2687e3696868778538Mark Andrews#define DNS_ADBNAMEHOOK_VALID(x) ISC_MAGIC_VALID(x, DNS_ADBNAMEHOOK_MAGIC)

c46f10e4a1702191b003cf8f8fc5059c15d29c48Mark Andrews#define DNS_ADBZONEINFO_MAGIC 0x6164625a /* adbZ. */

9ac7076ebad044afb15e9e2687e3696868778538Mark Andrews#define DNS_ADBZONEINFO_VALID(x) ISC_MAGIC_VALID(x, DNS_ADBZONEINFO_MAGIC)

9ac7076ebad044afb15e9e2687e3696868778538Mark Andrews#define DNS_ADBENTRY_MAGIC 0x61646245 /* adbE. */

9ac7076ebad044afb15e9e2687e3696868778538Mark Andrews#define DNS_ADBENTRY_VALID(x) ISC_MAGIC_VALID(x, DNS_ADBENTRY_MAGIC)

9ac7076ebad044afb15e9e2687e3696868778538Mark Andrews#define DNS_ADBFETCH_MAGIC 0x61644634 /* adF4. */

9ac7076ebad044afb15e9e2687e3696868778538Mark Andrews#define DNS_ADBFETCH_VALID(x) ISC_MAGIC_VALID(x, DNS_ADBFETCH_MAGIC)

9ac7076ebad044afb15e9e2687e3696868778538Mark Andrews#define DNS_ADBFETCH6_MAGIC 0x61644636 /* adF6. */

9ac7076ebad044afb15e9e2687e3696868778538Mark Andrews#define DNS_ADBFETCH6_VALID(x) ISC_MAGIC_VALID(x, DNS_ADBFETCH6_MAGIC)

eb6bd543c7d072efdca509eb17f8f301c1467b53Mark Andrews

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence#define NBUCKETS 1009 /* how many buckets for names/addrs */

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence#define ADB_CACHE_MINIMUM 10 /* seconds */

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence#define ADB_CACHE_MAXIMUM 86400 /* seconds (86400 = 24 hours) */

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence#define CLEAN_PERIOD 3600 /* one pass through every N seconds */

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence#define CLEAN_BUCKETS ((NBUCKETS / CLEAN_PERIOD) + 0.5)

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence#if CLEAN_BUCKET < 1

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence#undef CLEAN_BUCKETS

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence#define CLEAN_BUCKETS 1

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence#endif

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence#define CLEAN_SECONDS (CLEAN_PERIOD * CLEAN_BUCKETS / NBUCKETS)

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence#if CLEAN_SECONDS < 1

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence#undef CLEAN_SECONDS

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence#define CLEAN_SECONDS 1

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence#endif

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define FREE_ITEMS 64 /* free count for memory pools */

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define FILL_COUNT 16 /* fill count for memory pools */

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews#define DNS_ADB_INVALIDBUCKET (-1) /* invalid bucket address */

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews

ab023a65562e62b85a824509d829b6fad87e00b1Rob Austeintypedef ISC_LIST(dns_adbname_t) dns_adbnamelist_t;

40f53fa8d9c6a4fc38c0014495e7a42b08f52481David Lawrencetypedef struct dns_adbnamehook dns_adbnamehook_t;

0c8649cea98afc061dd2938fd315df53b8fc35caAndreas Gustafssontypedef ISC_LIST(dns_adbnamehook_t) dns_adbnamehooklist_t;

0c8649cea98afc061dd2938fd315df53b8fc35caAndreas Gustafssontypedef struct dns_adbzoneinfo dns_adbzoneinfo_t;

0c8649cea98afc061dd2938fd315df53b8fc35caAndreas Gustafssontypedef ISC_LIST(dns_adbentry_t) dns_adbentrylist_t;

0c8649cea98afc061dd2938fd315df53b8fc35caAndreas Gustafssontypedef struct dns_adbfetch dns_adbfetch_t;

ab023a65562e62b85a824509d829b6fad87e00b1Rob Austeintypedef struct dns_adbfetch6 dns_adbfetch6_t;

ab023a65562e62b85a824509d829b6fad87e00b1Rob Austein

ab023a65562e62b85a824509d829b6fad87e00b1Rob Austeinstruct dns_adb {

e672951ed28b2e9cc7a19c3d7fa4a258382f981cAutomatic Updater unsigned int magic;

0c8649cea98afc061dd2938fd315df53b8fc35caAndreas Gustafsson

0c8649cea98afc061dd2938fd315df53b8fc35caAndreas Gustafsson isc_mutex_t lock;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence isc_mutex_t ilock;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence isc_mem_t *mctx;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence dns_view_t *view;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence isc_timermgr_t *timermgr;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence isc_timer_t *timer;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence isc_taskmgr_t *taskmgr;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence isc_task_t *task;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence isc_interval_t tick_interval;

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont int next_cleanbucket;

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont unsigned int irefcnt;

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont unsigned int erefcnt;

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont isc_mutex_t mplock;

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont isc_mempool_t *nmp; /* dns_adbname_t */

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont isc_mempool_t *nhmp; /* dns_adbnamehook_t */

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont isc_mempool_t *zimp; /* dns_adbzoneinfo_t */

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence isc_mempool_t *emp; /* dns_adbentry_t */

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence isc_mempool_t *ahmp; /* dns_adbfind_t */

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence isc_mempool_t *aimp; /* dns_adbaddrinfo_t */

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence isc_mempool_t *afmp; /* dns_adbfetch_t */

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence isc_mempool_t *af6mp; /* dns_adbfetch6_t */

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence isc_random_t rand;

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence /*

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence dns_adbnamelist_t names[NBUCKETS];

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence isc_mutex_t namelocks[NBUCKETS];

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence isc_boolean_t name_sd[NBUCKETS];

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence unsigned int name_refcnt[NBUCKETS];

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence /*

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence dns_adbentrylist_t entries[NBUCKETS];

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence isc_mutex_t entrylocks[NBUCKETS];

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence isc_boolean_t entry_sd[NBUCKETS];

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence unsigned int entry_refcnt[NBUCKETS];

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence isc_event_t cevent;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence isc_boolean_t cevent_sent;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence isc_boolean_t shutting_down;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence isc_eventlist_t whenshutdown;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence};

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrencestruct dns_adbname {

6098d364b690cb9dabf96e9664c4689c8559bd2eMark Andrews unsigned int magic;

6098d364b690cb9dabf96e9664c4689c8559bd2eMark Andrews dns_name_t name;

6098d364b690cb9dabf96e9664c4689c8559bd2eMark Andrews dns_adb_t *adb;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence unsigned int partial_result;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence unsigned int flags;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence int lock_bucket;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence dns_name_t target;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence isc_stdtime_t expire_target;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence isc_stdtime_t expire_v4;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence isc_stdtime_t expire_v6;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence unsigned int chains;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence dns_adbnamehooklist_t v4;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence dns_adbnamehooklist_t v6;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence dns_adbfetch_t *fetch_a;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence dns_adbfetch_t *fetch_aaaa;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence ISC_LIST(dns_adbfetch6_t) fetches_a6;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence dns_adbfindlist_t finds;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence ISC_LINK(dns_adbname_t) plink;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence};

76c8294c81fb48b1da6e1fc5b83322a4cedb8e58Andreas Gustafsson

76c8294c81fb48b1da6e1fc5b83322a4cedb8e58Andreas Gustafssonstruct dns_adbfetch {

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence unsigned int magic;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence dns_adbnamehook_t *namehook;

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence dns_adbentry_t *entry;

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence dns_fetch_t *fetch;

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence dns_rdataset_t rdataset;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence};

fd4810861c0c0ccb9aebde94e9d289442b2630dbMark Andrews

fd4810861c0c0ccb9aebde94e9d289442b2630dbMark Andrewsstruct dns_adbfetch6 {

fd4810861c0c0ccb9aebde94e9d289442b2630dbMark Andrews unsigned int magic;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence unsigned int flags;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence dns_adbnamehook_t *namehook;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence dns_adbentry_t *entry;

7ab0e69f61e61e81d489c95c7ebd981e74e7ef16Andreas Gustafsson dns_fetch_t *fetch;

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews dns_rdataset_t rdataset;

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews dns_a6context_t a6ctx;

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews ISC_LINK(dns_adbfetch6_t) plink;

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews};

c5223c9cb7c22620d5ee6611228673e95b48a270Mark Andrews

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrewsstruct dns_adbnamehook {

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews unsigned int magic;

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews dns_adbentry_t *entry;

bddfe77128b0f16af263ff149db40f0d885f43d0Mark Andrews ISC_LINK(dns_adbnamehook_t) plink;

bddfe77128b0f16af263ff149db40f0d885f43d0Mark Andrews};

bddfe77128b0f16af263ff149db40f0d885f43d0Mark Andrews

23cb957a81a51a9656917ea98d0ae56b7abdcaccMark Andrewsstruct dns_adbzoneinfo {

b6a0341bcb113e93bd0bc41a9f9a1fc117444da6Mark Andrews unsigned int magic;

b6a0341bcb113e93bd0bc41a9f9a1fc117444da6Mark Andrews

aa05bbdef7f7827dde158dcc913f4dade84c8511Brian Wellington dns_name_t zone;

23cb957a81a51a9656917ea98d0ae56b7abdcaccMark Andrews isc_stdtime_t lame_timer;

23cb957a81a51a9656917ea98d0ae56b7abdcaccMark Andrews

bddfe77128b0f16af263ff149db40f0d885f43d0Mark Andrews ISC_LINK(dns_adbzoneinfo_t) plink;

bddfe77128b0f16af263ff149db40f0d885f43d0Mark Andrews};

bddfe77128b0f16af263ff149db40f0d885f43d0Mark Andrews

2002be4f65776451676df6ee21a2e28f52bcad6dMark Andrewsstruct dns_adbentry {

78838d3e0cd62423c23de5503910e01884d2104bBrian Wellington unsigned int magic;

2002be4f65776451676df6ee21a2e28f52bcad6dMark Andrews

2002be4f65776451676df6ee21a2e28f52bcad6dMark Andrews int lock_bucket;

2002be4f65776451676df6ee21a2e28f52bcad6dMark Andrews unsigned int refcnt;

2002be4f65776451676df6ee21a2e28f52bcad6dMark Andrews

2002be4f65776451676df6ee21a2e28f52bcad6dMark Andrews unsigned int flags;

2002be4f65776451676df6ee21a2e28f52bcad6dMark Andrews int edns_level; /* must be int! */

2002be4f65776451676df6ee21a2e28f52bcad6dMark Andrews int goodness; /* bad < 0 <= good */

2002be4f65776451676df6ee21a2e28f52bcad6dMark Andrews unsigned int srtt;

2002be4f65776451676df6ee21a2e28f52bcad6dMark Andrews isc_sockaddr_t sockaddr;

2002be4f65776451676df6ee21a2e28f52bcad6dMark Andrews isc_stdtime_t expires;

2002be4f65776451676df6ee21a2e28f52bcad6dMark Andrews isc_stdtime_t avoid_bitstring;

2002be4f65776451676df6ee21a2e28f52bcad6dMark Andrews

2002be4f65776451676df6ee21a2e28f52bcad6dMark Andrews ISC_LIST(dns_adbzoneinfo_t) zoneinfo;

f6407f9a0b890bebbfd5f738d9c4aef3d3315fe9Michael Graff ISC_LINK(dns_adbentry_t) plink;

2002be4f65776451676df6ee21a2e28f52bcad6dMark Andrews};

2002be4f65776451676df6ee21a2e28f52bcad6dMark Andrews

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrewsstatic inline dns_adbname_t *new_adbname(dns_adb_t *, dns_name_t *);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrewsstatic inline void free_adbname(dns_adb_t *, dns_adbname_t **);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrewsstatic inline dns_adbnamehook_t *new_adbnamehook(dns_adb_t *,

bed8e84810a80dad3d37870be927d1dfd015f480Mark Andrews dns_adbentry_t *);

bed8e84810a80dad3d37870be927d1dfd015f480Mark Andrewsstatic inline void free_adbnamehook(dns_adb_t *, dns_adbnamehook_t **);

bed8e84810a80dad3d37870be927d1dfd015f480Mark Andrewsstatic inline dns_adbzoneinfo_t *new_adbzoneinfo(dns_adb_t *, dns_name_t *);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrewsstatic inline void free_adbzoneinfo(dns_adb_t *, dns_adbzoneinfo_t **);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrewsstatic inline dns_adbentry_t *new_adbentry(dns_adb_t *);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrewsstatic inline void free_adbentry(dns_adb_t *, dns_adbentry_t **);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrewsstatic inline dns_adbfind_t *new_adbfind(dns_adb_t *);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrewsstatic inline void free_adbfind(dns_adb_t *, dns_adbfind_t **);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrewsstatic inline dns_adbaddrinfo_t *new_adbaddrinfo(dns_adb_t *, dns_adbentry_t *,

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews in_port_t);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrewsstatic inline dns_adbfetch_t *new_adbfetch(dns_adb_t *);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrewsstatic inline void free_adbfetch(dns_adb_t *, dns_adbfetch_t **);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrewsstatic inline dns_adbfetch6_t *new_adbfetch6(dns_adb_t *, dns_adbname_t *,

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews dns_a6context_t *);

d981ca645597116d227a48bf37cc5edc061c854dBob Halleystatic inline void free_adbfetch6(dns_adb_t *, dns_adbfetch6_t **);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrewsstatic inline dns_adbname_t *find_name_and_lock(dns_adb_t *, dns_name_t *,

e6bd97dded968f82e26b270842b789bff7bca422Mark Andrews unsigned int, int *);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrewsstatic inline dns_adbentry_t *find_entry_and_lock(dns_adb_t *,

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews isc_sockaddr_t *, int *);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrewsstatic void dump_adb(dns_adb_t *, FILE *);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrewsstatic void print_dns_name(FILE *, dns_name_t *);

389c749a5ee18f1c0d6278ae49f2aae5d5f0d2dcMark Andrewsstatic void print_namehook_list(FILE *, dns_adbname_t *);

368b37b616234fce3d23099eb180f1dd38e1fb62Mark Andrewsstatic void print_find_list(FILE *, dns_adbname_t *);

389c749a5ee18f1c0d6278ae49f2aae5d5f0d2dcMark Andrewsstatic void print_fetch_list(FILE *, dns_adbname_t *);

cabaeca9ae5b98c80586b91e89cf552e17a75a9bBrian Wellingtonstatic inline void dec_adb_irefcnt(dns_adb_t *);

cabaeca9ae5b98c80586b91e89cf552e17a75a9bBrian Wellingtonstatic inline void inc_adb_erefcnt(dns_adb_t *, isc_boolean_t);

389c749a5ee18f1c0d6278ae49f2aae5d5f0d2dcMark Andrewsstatic inline void dec_adb_erefcnt(dns_adb_t *, isc_boolean_t);

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrewsstatic inline void inc_entry_refcnt(dns_adb_t *, dns_adbentry_t *,

389c749a5ee18f1c0d6278ae49f2aae5d5f0d2dcMark Andrews isc_boolean_t);

389c749a5ee18f1c0d6278ae49f2aae5d5f0d2dcMark Andrewsstatic inline void dec_entry_refcnt(dns_adb_t *, dns_adbentry_t *,

389c749a5ee18f1c0d6278ae49f2aae5d5f0d2dcMark Andrews isc_boolean_t);

389c749a5ee18f1c0d6278ae49f2aae5d5f0d2dcMark Andrewsstatic inline void violate_locking_hierarchy(isc_mutex_t *, isc_mutex_t *);

389c749a5ee18f1c0d6278ae49f2aae5d5f0d2dcMark Andrewsstatic void clean_namehooks(dns_adb_t *, dns_adbnamehooklist_t *);

389c749a5ee18f1c0d6278ae49f2aae5d5f0d2dcMark Andrewsstatic void clean_target(dns_adb_t *, dns_name_t *);

389c749a5ee18f1c0d6278ae49f2aae5d5f0d2dcMark Andrewsstatic void clean_finds_at_name(dns_adbname_t *, isc_eventtype_t,

389c749a5ee18f1c0d6278ae49f2aae5d5f0d2dcMark Andrews unsigned int);

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrewsstatic void check_expire_namehooks(dns_adbname_t *, isc_stdtime_t);

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrewsstatic void cancel_fetches_at_name(dns_adbname_t *);

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrewsstatic isc_result_t dbfind_name(dns_adbname_t *, isc_stdtime_t,

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrews dns_rdatatype_t);

29c818c7d40fc8898b062903ec703851328a4deaMark Andrewsstatic isc_result_t fetch_name_v4(dns_adbname_t *, isc_boolean_t);

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrewsstatic isc_result_t fetch_name_aaaa(dns_adbname_t *);

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrewsstatic isc_result_t fetch_name_a6(dns_adbname_t *, isc_boolean_t);

cabaeca9ae5b98c80586b91e89cf552e17a75a9bBrian Wellingtonstatic inline void check_exit(dns_adb_t *);

cabaeca9ae5b98c80586b91e89cf552e17a75a9bBrian Wellingtonstatic void timer_cleanup(isc_task_t *, isc_event_t *);

cabaeca9ae5b98c80586b91e89cf552e17a75a9bBrian Wellingtonstatic void destroy(dns_adb_t *);

f1cae4bcb7ee3060d893f5ab3ba55c1820bf3e4aBrian Wellingtonstatic void shutdown_names(dns_adb_t *);

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrewsstatic void shutdown_entries(dns_adb_t *);

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrewsstatic inline void link_name(dns_adb_t *, int, dns_adbname_t *);

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrewsstatic inline void unlink_name(dns_adb_t *, dns_adbname_t *);

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrewsstatic inline void link_entry(dns_adb_t *, int, dns_adbentry_t *);

29c818c7d40fc8898b062903ec703851328a4deaMark Andrewsstatic inline void unlink_entry(dns_adb_t *, dns_adbentry_t *);

29c818c7d40fc8898b062903ec703851328a4deaMark Andrewsstatic void kill_name(dns_adbname_t **, isc_eventtype_t);

29c818c7d40fc8898b062903ec703851328a4deaMark Andrewsstatic void fetch_callback_a6(isc_task_t *, isc_event_t *);

29c818c7d40fc8898b062903ec703851328a4deaMark Andrewsstatic isc_result_t dbfind_a6(dns_adbname_t *, isc_stdtime_t);

29c818c7d40fc8898b062903ec703851328a4deaMark Andrews

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews#define FIND_EVENT_SENT 0x40000000

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews#define FIND_EVENT_FREED 0x80000000

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews#define FIND_EVENTSENT(h) (((h)->flags & FIND_EVENT_SENT) != 0)

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews#define FIND_EVENTFREED(h) (((h)->flags & FIND_EVENT_FREED) != 0)

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence#define NAME_NEEDS_POKE 0x80000000

3d5cad69ec20157912e95cf3b79316dfb0a314f3Mark Andrews#define NAME_IS_DEAD 0x40000000

3d5cad69ec20157912e95cf3b79316dfb0a314f3Mark Andrews#define NAME_HINT_OK DNS_ADBFIND_HINTOK

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews#define NAME_GLUE_OK DNS_ADBFIND_GLUEOK

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews#define NAME_DEAD(n) (((n)->flags & NAME_IS_DEAD) != 0)

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews#define NAME_NEEDSPOKE(n) (((n)->flags & NAME_NEEDS_POKE) != 0)

735ca24fa61ad9cd0285776c2fc4c14032f8f194Mark Andrews#define NAME_GLUEOK(n) (((n)->flags & NAME_GLUE_OK) != 0)

735ca24fa61ad9cd0285776c2fc4c14032f8f194Mark Andrews#define NAME_HINTOK(n) (((n)->flags & NAME_HINT_OK) != 0)

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrews

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews#define NAME_HAS_V4(n) (!ISC_LIST_EMPTY((n)->v4))

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews#define NAME_HAS_V6(n) (!ISC_LIST_EMPTY((n)->v6))

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews#define NAME_HAS_ADDRS(n) (NAME_HAS_V4(n) || NAME_HAS_V6(n))

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

44a966dff66061ac3f266c6b451a70733eb78e82Mark Andrews#define NAME_FETCH_A(n) ((n)->fetch_a != NULL)

44a966dff66061ac3f266c6b451a70733eb78e82Mark Andrews#define NAME_FETCH_AAAA(n) ((n)->fetch_aaaa != NULL)

44a966dff66061ac3f266c6b451a70733eb78e82Mark Andrews#define NAME_FETCH_A6(n) (!ISC_LIST_EMPTY((n)->fetches_a6))

90e303b114e56db5809fdd19805243457fa43cd9Olafur Gudmundsson#define NAME_FETCH_V4(n) (NAME_FETCH_A(n))

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews#define NAME_FETCH_V6(n) (NAME_FETCH_AAAA(n) || NAME_FETCH_A6(n))

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews#define NAME_FETCH(n) (NAME_FETCH_V4(n) || NAME_FETCH_V6(n))

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

3d17a3ba61a303d5c4d9867068d0fbe9f24d2988Mark Andrews#define FETCH_FIRST_A6 0x80000000

3d17a3ba61a303d5c4d9867068d0fbe9f24d2988Mark Andrews#define FETCH_FIRSTA6(f) (((f)->flags & FETCH_FIRST_A6) != 0)

3d17a3ba61a303d5c4d9867068d0fbe9f24d2988Mark Andrews

3d17a3ba61a303d5c4d9867068d0fbe9f24d2988Mark Andrews#define FIND_WANTEVENT(fn) (((fn)->options & DNS_ADBFIND_WANTEVENT) != 0)

3d17a3ba61a303d5c4d9867068d0fbe9f24d2988Mark Andrews#define FIND_WANTEMPTYEVENT(fn) (((fn)->options & DNS_ADBFIND_EMPTYEVENT) != 0)

3d17a3ba61a303d5c4d9867068d0fbe9f24d2988Mark Andrews#define FIND_AVOIDFETCHES(fn) (((fn)->options & DNS_ADBFIND_AVOIDFETCHES) \

3d17a3ba61a303d5c4d9867068d0fbe9f24d2988Mark Andrews != 0)

3d17a3ba61a303d5c4d9867068d0fbe9f24d2988Mark Andrews#define FIND_STARTATROOT(fn) (((fn)->options & DNS_ADBFIND_STARTATROOT) \

3d17a3ba61a303d5c4d9867068d0fbe9f24d2988Mark Andrews != 0)

3d17a3ba61a303d5c4d9867068d0fbe9f24d2988Mark Andrews#define FIND_HINTOK(fn) (((fn)->options & DNS_ADBFIND_HINTOK) != 0)

3d17a3ba61a303d5c4d9867068d0fbe9f24d2988Mark Andrews#define FIND_GLUEOK(fn) (((fn)->options & DNS_ADBFIND_GLUEOK) != 0)

3d17a3ba61a303d5c4d9867068d0fbe9f24d2988Mark Andrews#define FIND_HAS_ADDRS(fn) (!ISC_LIST_EMPTY((fn)->list))

3d17a3ba61a303d5c4d9867068d0fbe9f24d2988Mark Andrews#define FIND_RETURNLAME(fn) (((fn)->options & DNS_ADBFIND_RETURNLAME) != 0)

3d17a3ba61a303d5c4d9867068d0fbe9f24d2988Mark Andrews

3d17a3ba61a303d5c4d9867068d0fbe9f24d2988Mark Andrews#define WANT_INET(x) (((x) & DNS_ADBFIND_INET) != 0)

3d17a3ba61a303d5c4d9867068d0fbe9f24d2988Mark Andrews#define WANT_INET6(x) (((x) & DNS_ADBFIND_INET6) != 0)

3d17a3ba61a303d5c4d9867068d0fbe9f24d2988Mark Andrews

3d17a3ba61a303d5c4d9867068d0fbe9f24d2988Mark Andrews#define EXPIRE_OK(exp, now) ((exp == INT_MAX) || (exp < now))

3d17a3ba61a303d5c4d9867068d0fbe9f24d2988Mark Andrews

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews#define GLUE_OK(nf, o) (!NAME_GLUEOK(nf) || (((o) & DNS_ADBFIND_GLUEOK) != 0))

d981ca645597116d227a48bf37cc5edc061c854dBob Halley#define HINT_OK(nf, o) (!NAME_HINTOK(nf) || (((o) & DNS_ADBFIND_HINTOK) != 0))

0e8cf9a887c70f96ac448b06c069d90b830215ccMark Andrews#define GLUEHINT_OK(nf, o) (GLUE_OK(nf, o) || HINT_OK(nf, o))

0e8cf9a887c70f96ac448b06c069d90b830215ccMark Andrews

40f53fa8d9c6a4fc38c0014495e7a42b08f52481David Lawrence#define ENTER_LEVEL 50

19d365e4448f1782611280b020987988b7ac3210Mark Andrews#define EXIT_LEVEL ENTER_LEVEL

f1cae4bcb7ee3060d893f5ab3ba55c1820bf3e4aBrian Wellington#define CLEAN_LEVEL 100

19d365e4448f1782611280b020987988b7ac3210Mark Andrews#define DEF_LEVEL 5

19d365e4448f1782611280b020987988b7ac3210Mark Andrews#define NCACHE_LEVEL 20

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrews

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrews#define NCACHE_RESULT(r) ((r) == DNS_R_NCACHENXDOMAIN || \

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews (r) == DNS_R_NCACHENXRRSET)

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews#define AUTH_NX(r) ((r) == DNS_R_NXDOMAIN || \

d981ca645597116d227a48bf37cc5edc061c854dBob Halley (r) == DNS_R_NXRRSET)

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrews

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrewsstatic void

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark AndrewsDP(int level, const char *format, ...) {

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews va_list args;

6d12fdf96621801e80f3f4c2a8a569fe48766a20David Lawrence

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews va_start(args, format);

19d365e4448f1782611280b020987988b7ac3210Mark Andrews isc_log_vwrite(dns_lctx,

19d365e4448f1782611280b020987988b7ac3210Mark Andrews DNS_LOGCATEGORY_DATABASE, DNS_LOGMODULE_ADB,

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrews ISC_LOG_DEBUG(level), format, args);

19d365e4448f1782611280b020987988b7ac3210Mark Andrews va_end(args);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews}

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrewsstatic inline dns_ttl_t

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrewsttlclamp(dns_ttl_t ttl) {

3ddd814a97de1d152ba0913c592d6e6dc83d38a6Michael Graff if (ttl < ADB_CACHE_MINIMUM)

d981ca645597116d227a48bf37cc5edc061c854dBob Halley ttl = ADB_CACHE_MINIMUM;

0e8cf9a887c70f96ac448b06c069d90b830215ccMark Andrews if (ttl > ADB_CACHE_MAXIMUM)

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews ttl = ADB_CACHE_MAXIMUM;

0e8cf9a887c70f96ac448b06c069d90b830215ccMark Andrews

0e8cf9a887c70f96ac448b06c069d90b830215ccMark Andrews return (ttl);

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff}

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrewsstatic isc_result_t

19d365e4448f1782611280b020987988b7ac3210Mark Andrewsimport_rdataset(dns_adbname_t *adbname, dns_rdataset_t *rdataset,

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrews isc_stdtime_t now)

f1cae4bcb7ee3060d893f5ab3ba55c1820bf3e4aBrian Wellington{

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrews isc_result_t result;

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrews dns_adb_t *adb;

7e9d637131516486630290d36c4c0db544cb700eMark Andrews dns_adbnamehook_t *nh;

7e9d637131516486630290d36c4c0db544cb700eMark Andrews dns_rdata_t rdata;

19d365e4448f1782611280b020987988b7ac3210Mark Andrews struct in_addr ina;

6bebabb376b93e7d12f53a253b197a3fc0e0b001Andreas Gustafsson struct in6_addr in6a;

6bebabb376b93e7d12f53a253b197a3fc0e0b001Andreas Gustafsson isc_sockaddr_t sockaddr;

6bebabb376b93e7d12f53a253b197a3fc0e0b001Andreas Gustafsson dns_adbentry_t *foundentry; /* NO CLEAN UP! */

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews int addr_bucket;

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews isc_boolean_t new_addresses_added;

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews dns_rdatatype_t rdtype;

9916239908343b3eb17f0578de4c3cd6a313d85fMark Andrews unsigned int findoptions;

9916239908343b3eb17f0578de4c3cd6a313d85fMark Andrews

9916239908343b3eb17f0578de4c3cd6a313d85fMark Andrews INSIST(DNS_ADBNAME_VALID(adbname));

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews adb = adbname->adb;

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews INSIST(DNS_ADB_VALID(adb));

9916239908343b3eb17f0578de4c3cd6a313d85fMark Andrews

9916239908343b3eb17f0578de4c3cd6a313d85fMark Andrews rdtype = rdataset->type;

9916239908343b3eb17f0578de4c3cd6a313d85fMark Andrews INSIST((rdtype == dns_rdatatype_a) || (rdtype == dns_rdatatype_aaaa));

9916239908343b3eb17f0578de4c3cd6a313d85fMark Andrews if (rdtype == dns_rdatatype_a)

9916239908343b3eb17f0578de4c3cd6a313d85fMark Andrews findoptions = DNS_ADBFIND_INET;

9916239908343b3eb17f0578de4c3cd6a313d85fMark Andrews else

9916239908343b3eb17f0578de4c3cd6a313d85fMark Andrews findoptions = DNS_ADBFIND_INET6;

9916239908343b3eb17f0578de4c3cd6a313d85fMark Andrews

9916239908343b3eb17f0578de4c3cd6a313d85fMark Andrews addr_bucket = DNS_ADB_INVALIDBUCKET;

9916239908343b3eb17f0578de4c3cd6a313d85fMark Andrews new_addresses_added = ISC_FALSE;

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

1bbd36c4db2c86762b582db4b0504e6e68a183f6Mark Andrews nh = NULL;

1bbd36c4db2c86762b582db4b0504e6e68a183f6Mark Andrews result = dns_rdataset_first(rdataset);

1bbd36c4db2c86762b582db4b0504e6e68a183f6Mark Andrews while (result == ISC_R_SUCCESS) {

1bbd36c4db2c86762b582db4b0504e6e68a183f6Mark Andrews dns_rdataset_current(rdataset, &rdata);

1bbd36c4db2c86762b582db4b0504e6e68a183f6Mark Andrews if (rdtype == dns_rdatatype_a) {

1bbd36c4db2c86762b582db4b0504e6e68a183f6Mark Andrews INSIST(rdata.length == 4);

1bbd36c4db2c86762b582db4b0504e6e68a183f6Mark Andrews memcpy(&ina.s_addr, rdata.data, 4);

1bbd36c4db2c86762b582db4b0504e6e68a183f6Mark Andrews isc_sockaddr_fromin(&sockaddr, &ina, 0);

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence } else {

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence INSIST(rdata.length == 16);

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence memcpy(in6a.s6_addr, rdata.data, 16);

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff isc_sockaddr_fromin6(&sockaddr, &in6a, 0);

3d5cad69ec20157912e95cf3b79316dfb0a314f3Mark Andrews }

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

ad7209ea70d346527ffdcda335153831341d9dcfAndreas Gustafsson INSIST(nh == NULL);

7d8cdd869ed2162a5befda7cc1600136110f54d6Mark Andrews nh = new_adbnamehook(adb, NULL);

1bbd36c4db2c86762b582db4b0504e6e68a183f6Mark Andrews if (nh == NULL) {

d981ca645597116d227a48bf37cc5edc061c854dBob Halley adbname->partial_result |= findoptions;

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews result = ISC_R_NOMEMORY;

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews goto fail;

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff }

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews foundentry = find_entry_and_lock(adb, &sockaddr, &addr_bucket);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews if (foundentry == NULL) {

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews dns_adbentry_t *entry;

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews entry = new_adbentry(adb);

3ddd814a97de1d152ba0913c592d6e6dc83d38a6Michael Graff if (entry == NULL) {

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews adbname->partial_result |= findoptions;

78838d3e0cd62423c23de5503910e01884d2104bBrian Wellington result = ISC_R_NOMEMORY;

0e8cf9a887c70f96ac448b06c069d90b830215ccMark Andrews goto fail;

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff }

3d5cad69ec20157912e95cf3b79316dfb0a314f3Mark Andrews

f0a5bb8f86631ce638cb2b6c65bbb9bcf9b0cdc0Bob Halley entry->sockaddr = sockaddr;

52637f592f705ca93fadc218e403fd55e8ce4aeaMark Andrews entry->refcnt = 1;

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

19d365e4448f1782611280b020987988b7ac3210Mark Andrews nh->entry = entry;

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrews

6e49e91bd08778d7eae45a2229dcf41ed97cc636David Lawrence link_entry(adb, addr_bucket, entry);

693ddf84daa745a0ea8ca311a8154dfa03eabc43Andreas Gustafsson } else {

693ddf84daa745a0ea8ca311a8154dfa03eabc43Andreas Gustafsson foundentry->refcnt++;

693ddf84daa745a0ea8ca311a8154dfa03eabc43Andreas Gustafsson nh->entry = foundentry;

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrews }

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrews

693ddf84daa745a0ea8ca311a8154dfa03eabc43Andreas Gustafsson new_addresses_added = ISC_TRUE;

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrews if (rdtype == dns_rdatatype_a)

693ddf84daa745a0ea8ca311a8154dfa03eabc43Andreas Gustafsson ISC_LIST_APPEND(adbname->v4, nh, plink);

52637f592f705ca93fadc218e403fd55e8ce4aeaMark Andrews else

19d365e4448f1782611280b020987988b7ac3210Mark Andrews ISC_LIST_APPEND(adbname->v6, nh, plink);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews nh = NULL;

40f53fa8d9c6a4fc38c0014495e7a42b08f52481David Lawrence

3d5cad69ec20157912e95cf3b79316dfb0a314f3Mark Andrews result = dns_rdataset_next(rdataset);

6e49e91bd08778d7eae45a2229dcf41ed97cc636David Lawrence }

40f53fa8d9c6a4fc38c0014495e7a42b08f52481David Lawrence

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff fail:

f0a5bb8f86631ce638cb2b6c65bbb9bcf9b0cdc0Bob Halley if (nh != NULL)

f0a5bb8f86631ce638cb2b6c65bbb9bcf9b0cdc0Bob Halley free_adbnamehook(adb, &nh);

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews if (addr_bucket != DNS_ADB_INVALIDBUCKET)

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff UNLOCK(&adb->entrylocks[addr_bucket]);

52637f592f705ca93fadc218e403fd55e8ce4aeaMark Andrews

7c0378745269fe49a05904935afc42b85528f53aDavid Lawrence rdataset->ttl = ttlclamp(rdataset->ttl);

7c0378745269fe49a05904935afc42b85528f53aDavid Lawrence

52637f592f705ca93fadc218e403fd55e8ce4aeaMark Andrews if (rdtype == dns_rdatatype_a) {

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews DP(NCACHE_LEVEL, "expire_v4 set to MIN(%u,%u) import_rdataset",

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews adbname->expire_v4, now + rdataset->ttl);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews adbname->expire_v4 = ISC_MIN(adbname->expire_v4,

7e4cda9965e2edf2ec43c57967eec8eff7061ab0Andreas Gustafsson now + rdataset->ttl);

7e4cda9965e2edf2ec43c57967eec8eff7061ab0Andreas Gustafsson } else {

7e4cda9965e2edf2ec43c57967eec8eff7061ab0Andreas Gustafsson DP(NCACHE_LEVEL, "expire_v6 set to MIN(%u,%u) import_rdataset",

7e4cda9965e2edf2ec43c57967eec8eff7061ab0Andreas Gustafsson adbname->expire_v6, now + rdataset->ttl);

7e4cda9965e2edf2ec43c57967eec8eff7061ab0Andreas Gustafsson adbname->expire_v6 = ISC_MIN(adbname->expire_v6,

3a16668468060842e847ea6556e80e1405d35cd6Brian Wellington now + rdataset->ttl);

7e4cda9965e2edf2ec43c57967eec8eff7061ab0Andreas Gustafsson }

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington

9916239908343b3eb17f0578de4c3cd6a313d85fMark Andrews if (new_addresses_added) {

ebfcb6cf66283096ebda1503b6cc042ce86b6bedBrian Wellington /*

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington return (ISC_R_SUCCESS);

7e9d637131516486630290d36c4c0db544cb700eMark Andrews }

ebfcb6cf66283096ebda1503b6cc042ce86b6bedBrian Wellington

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrews return (result);

9916239908343b3eb17f0578de4c3cd6a313d85fMark Andrews}

9916239908343b3eb17f0578de4c3cd6a313d85fMark Andrews

9916239908343b3eb17f0578de4c3cd6a313d85fMark Andrewsstatic void

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellingtonimport_a6(dns_a6context_t *a6ctx) {

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington dns_adbname_t *name;

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington dns_adb_t *adb;

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington dns_adbnamehook_t *nh;

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington dns_adbentry_t *foundentry; /* NO CLEAN UP! */

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington int addr_bucket;

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington isc_sockaddr_t sockaddr;

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington

de5247ae1683ce145662180ee50272d2214a0232Andreas Gustafsson name = a6ctx->arg;

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington INSIST(DNS_ADBNAME_VALID(name));

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington adb = name->adb;

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington INSIST(DNS_ADB_VALID(adb));

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington

5eb91bd90e3ad3426e5e3213031556a737cf3809Mark Andrews addr_bucket = DNS_ADB_INVALIDBUCKET;

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington

f16495732753175e4a9fc144323a12fdcc29b561Brian Wellington DP(ENTER_LEVEL, "ENTER: import_a6() name %p", name);

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington nh = new_adbnamehook(adb, NULL);

e672951ed28b2e9cc7a19c3d7fa4a258382f981cAutomatic Updater if (nh == NULL) {

e086935752b6e2f51ef2985fee21ccfff617b115David Lawrence name->partial_result |= DNS_ADBFIND_INET6; /* clear for AAAA */

e086935752b6e2f51ef2985fee21ccfff617b115David Lawrence goto fail;

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington }

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington isc_sockaddr_fromin6(&sockaddr, &a6ctx->in6addr, 0);

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington foundentry = find_entry_and_lock(adb, &sockaddr, &addr_bucket);

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington if (foundentry == NULL) {

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington dns_adbentry_t *entry;

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington entry = new_adbentry(adb);

7e4cda9965e2edf2ec43c57967eec8eff7061ab0Andreas Gustafsson if (entry == NULL) {

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington name->partial_result |= DNS_ADBFIND_INET6;

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington goto fail;

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington }

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington entry->sockaddr = sockaddr;

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington entry->refcnt = 1;

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington nh->entry = entry;

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington link_entry(adb, addr_bucket, entry);

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington } else {

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington foundentry->refcnt++;

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington nh->entry = foundentry;

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington }

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington ISC_LIST_APPEND(name->v6, nh, plink);

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington nh = NULL;

93ed317bb43658ed48ee7439f7a36bb9bcf80c94Brian Wellington

3ddd814a97de1d152ba0913c592d6e6dc83d38a6Michael Graff fail:

d981ca645597116d227a48bf37cc5edc061c854dBob Halley DP(NCACHE_LEVEL, "expire_v6 set to MIN(%u,%u) in import_v6",

0e8cf9a887c70f96ac448b06c069d90b830215ccMark Andrews name->expire_v6, a6ctx->expiration);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews name->expire_v6 = ISC_MIN(name->expire_v6, a6ctx->expiration);

0e8cf9a887c70f96ac448b06c069d90b830215ccMark Andrews

0e8cf9a887c70f96ac448b06c069d90b830215ccMark Andrews name->flags |= NAME_NEEDS_POKE;

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews if (nh != NULL)

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews free_adbnamehook(adb, &nh);

3d5cad69ec20157912e95cf3b79316dfb0a314f3Mark Andrews

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews if (addr_bucket != DNS_ADB_INVALIDBUCKET)

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews UNLOCK(&adb->entrylocks[addr_bucket]);

82d05588933a3c765aa8518fe455d6477d640b99Mark Andrews}

20b20b23948b90cb2f7d7f402da99d09f837efd0David Lawrence

e85702ce5be33d7c07eff6487c6bb4730165f331Mark Andrewsstatic void

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrewskill_name(dns_adbname_t **n, isc_eventtype_t ev) {

6e49e91bd08778d7eae45a2229dcf41ed97cc636David Lawrence dns_adbname_t *name;

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrews dns_adb_t *adb;

f1cae4bcb7ee3060d893f5ab3ba55c1820bf3e4aBrian Wellington

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrews INSIST(n != NULL);

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrews name = *n;

23cb957a81a51a9656917ea98d0ae56b7abdcaccMark Andrews *n = NULL;

23cb957a81a51a9656917ea98d0ae56b7abdcaccMark Andrews INSIST(DNS_ADBNAME_VALID(name));

23cb957a81a51a9656917ea98d0ae56b7abdcaccMark Andrews adb = name->adb;

23cb957a81a51a9656917ea98d0ae56b7abdcaccMark Andrews INSIST(DNS_ADB_VALID(adb));

19d365e4448f1782611280b020987988b7ac3210Mark Andrews

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews DP(DEF_LEVEL, "killing name %p", name);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

23cb957a81a51a9656917ea98d0ae56b7abdcaccMark Andrews /*

228c679d7a269423019f7c528db92e855f08240bMark Andrews if (NAME_DEAD(name) && !NAME_FETCH(name)) {

ebfcb6cf66283096ebda1503b6cc042ce86b6bedBrian Wellington unlink_name(adb, name);

ebfcb6cf66283096ebda1503b6cc042ce86b6bedBrian Wellington free_adbname(adb, &name);

228c679d7a269423019f7c528db92e855f08240bMark Andrews return;

228c679d7a269423019f7c528db92e855f08240bMark Andrews }

228c679d7a269423019f7c528db92e855f08240bMark Andrews

c51f2c9a529b2130a8058cb7a32bd284fa6cfdb9Mark Andrews /*

e85702ce5be33d7c07eff6487c6bb4730165f331Mark Andrews clean_finds_at_name(name, ev, DNS_ADBFIND_ADDRESSMASK);

e85702ce5be33d7c07eff6487c6bb4730165f331Mark Andrews clean_namehooks(adb, &name->v4);

e85702ce5be33d7c07eff6487c6bb4730165f331Mark Andrews clean_namehooks(adb, &name->v6);

e85702ce5be33d7c07eff6487c6bb4730165f331Mark Andrews clean_target(adb, &name->target);

e85702ce5be33d7c07eff6487c6bb4730165f331Mark Andrews

e85702ce5be33d7c07eff6487c6bb4730165f331Mark Andrews /*

e85702ce5be33d7c07eff6487c6bb4730165f331Mark Andrews if (!NAME_FETCH(name)) {

e85702ce5be33d7c07eff6487c6bb4730165f331Mark Andrews unlink_name(adb, name);

e85702ce5be33d7c07eff6487c6bb4730165f331Mark Andrews free_adbname(adb, &name);

e85702ce5be33d7c07eff6487c6bb4730165f331Mark Andrews } else {

e85702ce5be33d7c07eff6487c6bb4730165f331Mark Andrews name->flags |= NAME_IS_DEAD;

e85702ce5be33d7c07eff6487c6bb4730165f331Mark Andrews cancel_fetches_at_name(name);

e85702ce5be33d7c07eff6487c6bb4730165f331Mark Andrews }

e85702ce5be33d7c07eff6487c6bb4730165f331Mark Andrews}

e85702ce5be33d7c07eff6487c6bb4730165f331Mark Andrews

e85702ce5be33d7c07eff6487c6bb4730165f331Mark Andrewsstatic void

b8e2e5dd861bdc72a5496a745a85f8761bef7dc4Tinderbox Usercheck_expire_namehooks(dns_adbname_t *name, isc_stdtime_t now) {

ebfcb6cf66283096ebda1503b6cc042ce86b6bedBrian Wellington dns_adb_t *adb;

ebfcb6cf66283096ebda1503b6cc042ce86b6bedBrian Wellington

e85702ce5be33d7c07eff6487c6bb4730165f331Mark Andrews INSIST(DNS_ADBNAME_VALID(name));

ebfcb6cf66283096ebda1503b6cc042ce86b6bedBrian Wellington adb = name->adb;

3d5cad69ec20157912e95cf3b79316dfb0a314f3Mark Andrews INSIST(DNS_ADB_VALID(adb));

3d5cad69ec20157912e95cf3b79316dfb0a314f3Mark Andrews

3d5cad69ec20157912e95cf3b79316dfb0a314f3Mark Andrews /*

3d5cad69ec20157912e95cf3b79316dfb0a314f3Mark Andrews if (!NAME_FETCH_V4(name) && EXPIRE_OK(name->expire_v4, now)) {

3d5cad69ec20157912e95cf3b79316dfb0a314f3Mark Andrews if (NAME_HAS_V4(name)) {

82d05588933a3c765aa8518fe455d6477d640b99Mark Andrews DP(DEF_LEVEL, "expiring v4 for name %p", name);

82d05588933a3c765aa8518fe455d6477d640b99Mark Andrews clean_namehooks(adb, &name->v4);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews name->partial_result &= ~DNS_ADBFIND_INET;

8dd5237a27e2e824d18f835dc711573aeb23a173Mark Andrews }

8dd5237a27e2e824d18f835dc711573aeb23a173Mark Andrews name->expire_v4 = INT_MAX;

8dd5237a27e2e824d18f835dc711573aeb23a173Mark Andrews }

82d05588933a3c765aa8518fe455d6477d640b99Mark Andrews

82d05588933a3c765aa8518fe455d6477d640b99Mark Andrews /*

3d5cad69ec20157912e95cf3b79316dfb0a314f3Mark Andrews if (!NAME_FETCH_V6(name) && EXPIRE_OK(name->expire_v6, now)) {

3d5cad69ec20157912e95cf3b79316dfb0a314f3Mark Andrews if (NAME_HAS_V6(name)) {

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff DP(DEF_LEVEL, "expiring v6 for name %p", name);

3d5cad69ec20157912e95cf3b79316dfb0a314f3Mark Andrews clean_namehooks(adb, &name->v6);

82d05588933a3c765aa8518fe455d6477d640b99Mark Andrews name->partial_result &= ~DNS_ADBFIND_INET6;

82d05588933a3c765aa8518fe455d6477d640b99Mark Andrews }

82d05588933a3c765aa8518fe455d6477d640b99Mark Andrews name->expire_v6 = INT_MAX;

82d05588933a3c765aa8518fe455d6477d640b99Mark Andrews }

82d05588933a3c765aa8518fe455d6477d640b99Mark Andrews

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff /*

82d05588933a3c765aa8518fe455d6477d640b99Mark Andrews if (EXPIRE_OK(name->expire_target, now)) {

fd4810861c0c0ccb9aebde94e9d289442b2630dbMark Andrews clean_target(adb, &name->target);

fd4810861c0c0ccb9aebde94e9d289442b2630dbMark Andrews name->expire_target = INT_MAX;

fd4810861c0c0ccb9aebde94e9d289442b2630dbMark Andrews }

3d5cad69ec20157912e95cf3b79316dfb0a314f3Mark Andrews}

fd4810861c0c0ccb9aebde94e9d289442b2630dbMark Andrews

1bbd36c4db2c86762b582db4b0504e6e68a183f6Mark Andrewsstatic inline void

1bbd36c4db2c86762b582db4b0504e6e68a183f6Mark Andrewslink_name(dns_adb_t *adb, int bucket, dns_adbname_t *name) {

1bbd36c4db2c86762b582db4b0504e6e68a183f6Mark Andrews INSIST(name->lock_bucket == DNS_ADB_INVALIDBUCKET);

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff

7d8cdd869ed2162a5befda7cc1600136110f54d6Mark Andrews ISC_LIST_PREPEND(adb->names[bucket], name, plink);

1bbd36c4db2c86762b582db4b0504e6e68a183f6Mark Andrews name->lock_bucket = bucket;

d981ca645597116d227a48bf37cc5edc061c854dBob Halley adb->name_refcnt[bucket]++;

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews}

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrewsstatic inline void

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrewsunlink_name(dns_adb_t *adb, dns_adbname_t *name) {

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews int bucket;

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews bucket = name->lock_bucket;

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews INSIST(bucket != DNS_ADB_INVALIDBUCKET);

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews ISC_LIST_UNLINK(adb->names[bucket], name, plink);

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews name->lock_bucket = DNS_ADB_INVALIDBUCKET;

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews INSIST(adb->name_refcnt[bucket] > 0);

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews adb->name_refcnt[bucket]--;

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews if (adb->name_sd[bucket] && adb->name_refcnt[bucket] == 0)

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews dec_adb_irefcnt(adb);

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews}

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrewsstatic inline void

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrewslink_entry(dns_adb_t *adb, int bucket, dns_adbentry_t *entry) {

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews ISC_LIST_PREPEND(adb->entries[bucket], entry, plink);

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews entry->lock_bucket = bucket;

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews adb->entry_refcnt[bucket]++;

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews}

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrewsstatic inline void

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrewsunlink_entry(dns_adb_t *adb, dns_adbentry_t *entry) {

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews int bucket;

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews bucket = entry->lock_bucket;

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews INSIST(bucket != DNS_ADB_INVALIDBUCKET);

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews ISC_LIST_UNLINK(adb->entries[bucket], entry, plink);

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews entry->lock_bucket = DNS_ADB_INVALIDBUCKET;

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews INSIST(adb->entry_refcnt[bucket] > 0);

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews adb->entry_refcnt[bucket]--;

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews if (adb->entry_sd[bucket] && adb->entry_refcnt[bucket] == 0)

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews dec_adb_irefcnt(adb);

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews}

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrewsstatic inline void

3ddd814a97de1d152ba0913c592d6e6dc83d38a6Michael Graffviolate_locking_hierarchy(isc_mutex_t *have, isc_mutex_t *want) {

ae70d32b67cf30e06553c01479e71c87b21d984cBob Halley if (isc_mutex_trylock(want) != ISC_R_SUCCESS) {

ae70d32b67cf30e06553c01479e71c87b21d984cBob Halley UNLOCK(have);

19d365e4448f1782611280b020987988b7ac3210Mark Andrews LOCK(want);

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff LOCK(have);

3d5cad69ec20157912e95cf3b79316dfb0a314f3Mark Andrews }

40f53fa8d9c6a4fc38c0014495e7a42b08f52481David Lawrence}

19d365e4448f1782611280b020987988b7ac3210Mark Andrews

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrencestatic void

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrenceshutdown_names(dns_adb_t *adb) {

b589e90689c6e87bf9608424ca8d99571c18bc61Mark Andrews int bucket;

b589e90689c6e87bf9608424ca8d99571c18bc61Mark Andrews dns_adbname_t *name;

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff dns_adbname_t *next_name;

b589e90689c6e87bf9608424ca8d99571c18bc61Mark Andrews

f8aae502686e2448c48f56697c212a50e2a1cbaeAndreas Gustafsson for (bucket = 0 ; bucket < NBUCKETS ; bucket++) {

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews LOCK(&adb->namelocks[bucket]);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews adb->name_sd[bucket] = ISC_TRUE;

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews

fe3472c80b76b6fed0ae674fd63471d02477a03aMark Andrews name = ISC_LIST_HEAD(adb->names[bucket]);

3d5cad69ec20157912e95cf3b79316dfb0a314f3Mark Andrews if (name == NULL) {

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews /*

7ab0e69f61e61e81d489c95c7ebd981e74e7ef16Andreas Gustafsson dec_adb_irefcnt(adb);

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrews } else {

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrews /*

7ab0e69f61e61e81d489c95c7ebd981e74e7ef16Andreas Gustafsson while (name != NULL) {

7ab0e69f61e61e81d489c95c7ebd981e74e7ef16Andreas Gustafsson next_name = ISC_LIST_NEXT(name, plink);

7ab0e69f61e61e81d489c95c7ebd981e74e7ef16Andreas Gustafsson kill_name(&name, DNS_EVENT_ADBSHUTDOWN);

7ab0e69f61e61e81d489c95c7ebd981e74e7ef16Andreas Gustafsson name = next_name;

ae70d32b67cf30e06553c01479e71c87b21d984cBob Halley }

7ab0e69f61e61e81d489c95c7ebd981e74e7ef16Andreas Gustafsson }

7ab0e69f61e61e81d489c95c7ebd981e74e7ef16Andreas Gustafsson

3ddd814a97de1d152ba0913c592d6e6dc83d38a6Michael Graff UNLOCK(&adb->namelocks[bucket]);

0c8649cea98afc061dd2938fd315df53b8fc35caAndreas Gustafsson }

0c8649cea98afc061dd2938fd315df53b8fc35caAndreas Gustafsson}

9a859983d7059a6eb9c877c1d2ac6a3a5b7170f7Evan Hunt

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrewsstatic void

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrewsshutdown_entries(dns_adb_t *adb) {

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence int bucket;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence dns_adbentry_t *entry;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence dns_adbentry_t *next_entry;

0c8649cea98afc061dd2938fd315df53b8fc35caAndreas Gustafsson

0c8649cea98afc061dd2938fd315df53b8fc35caAndreas Gustafsson for (bucket = 0 ; bucket < NBUCKETS ; bucket++) {

9a859983d7059a6eb9c877c1d2ac6a3a5b7170f7Evan Hunt LOCK(&adb->entrylocks[bucket]);

0c8649cea98afc061dd2938fd315df53b8fc35caAndreas Gustafsson adb->entry_sd[bucket] = ISC_TRUE;

9a859983d7059a6eb9c877c1d2ac6a3a5b7170f7Evan Hunt

9a859983d7059a6eb9c877c1d2ac6a3a5b7170f7Evan Hunt entry = ISC_LIST_HEAD(adb->entries[bucket]);

9a859983d7059a6eb9c877c1d2ac6a3a5b7170f7Evan Hunt if (entry == NULL) {

9a859983d7059a6eb9c877c1d2ac6a3a5b7170f7Evan Hunt /*

0c8649cea98afc061dd2938fd315df53b8fc35caAndreas Gustafsson dec_adb_irefcnt(adb);

0c8649cea98afc061dd2938fd315df53b8fc35caAndreas Gustafsson } else {

ae70d32b67cf30e06553c01479e71c87b21d984cBob Halley /*

d981ca645597116d227a48bf37cc5edc061c854dBob Halley while (entry != NULL) {

0e8cf9a887c70f96ac448b06c069d90b830215ccMark Andrews next_entry = ISC_LIST_NEXT(entry, plink);

0e8cf9a887c70f96ac448b06c069d90b830215ccMark Andrews if (entry->refcnt == 0 &&

0e8cf9a887c70f96ac448b06c069d90b830215ccMark Andrews entry->expires != 0) {

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff unlink_entry(adb, entry);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews free_adbentry(adb, &entry);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews }

3d5cad69ec20157912e95cf3b79316dfb0a314f3Mark Andrews entry = next_entry;

1bbd36c4db2c86762b582db4b0504e6e68a183f6Mark Andrews }

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews }

19d365e4448f1782611280b020987988b7ac3210Mark Andrews

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrews UNLOCK(&adb->entrylocks[bucket]);

f1cae4bcb7ee3060d893f5ab3ba55c1820bf3e4aBrian Wellington }

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrews}

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrews

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrewsstatic void

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrewscancel_fetches_at_name(dns_adbname_t *name) {

3d5cad69ec20157912e95cf3b79316dfb0a314f3Mark Andrews dns_adbfetch6_t *fetch6;

3d5cad69ec20157912e95cf3b79316dfb0a314f3Mark Andrews

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews if (NAME_FETCH_A(name))

1bbd36c4db2c86762b582db4b0504e6e68a183f6Mark Andrews dns_resolver_cancelfetch(name->fetch_a->fetch);

1bbd36c4db2c86762b582db4b0504e6e68a183f6Mark Andrews

1bbd36c4db2c86762b582db4b0504e6e68a183f6Mark Andrews

1bbd36c4db2c86762b582db4b0504e6e68a183f6Mark Andrews if (NAME_FETCH_AAAA(name))

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff dns_resolver_cancelfetch(name->fetch_aaaa->fetch);

7d8cdd869ed2162a5befda7cc1600136110f54d6Mark Andrews

1bbd36c4db2c86762b582db4b0504e6e68a183f6Mark Andrews

d981ca645597116d227a48bf37cc5edc061c854dBob Halley fetch6 = ISC_LIST_HEAD(name->fetches_a6);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews while (fetch6 != NULL) {

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff dns_resolver_cancelfetch(fetch6->fetch);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews fetch6 = ISC_LIST_NEXT(fetch6, plink);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews }

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews}

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

3d5cad69ec20157912e95cf3b79316dfb0a314f3Mark Andrewsstatic void

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrewsclean_namehooks(dns_adb_t *adb, dns_adbnamehooklist_t *namehooks) {

19d365e4448f1782611280b020987988b7ac3210Mark Andrews dns_adbentry_t *entry;

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrews dns_adbnamehook_t *namehook;

19d365e4448f1782611280b020987988b7ac3210Mark Andrews int addr_bucket;

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews addr_bucket = DNS_ADB_INVALIDBUCKET;

3d5cad69ec20157912e95cf3b79316dfb0a314f3Mark Andrews namehook = ISC_LIST_HEAD(*namehooks);

3d5cad69ec20157912e95cf3b79316dfb0a314f3Mark Andrews while (namehook != NULL) {

3d5cad69ec20157912e95cf3b79316dfb0a314f3Mark Andrews INSIST(DNS_ADBNAMEHOOK_VALID(namehook));

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews /*

94a3bcd132e515b4baa0884ba9dd0f361d2e17bcMark Andrews entry = namehook->entry;

94a3bcd132e515b4baa0884ba9dd0f361d2e17bcMark Andrews if (entry != NULL) {

94a3bcd132e515b4baa0884ba9dd0f361d2e17bcMark Andrews INSIST(DNS_ADBENTRY_VALID(entry));

94a3bcd132e515b4baa0884ba9dd0f361d2e17bcMark Andrews

94a3bcd132e515b4baa0884ba9dd0f361d2e17bcMark Andrews if (addr_bucket != entry->lock_bucket) {

94a3bcd132e515b4baa0884ba9dd0f361d2e17bcMark Andrews if (addr_bucket != DNS_ADB_INVALIDBUCKET)

94a3bcd132e515b4baa0884ba9dd0f361d2e17bcMark Andrews UNLOCK(&adb->entrylocks[addr_bucket]);

3ddd814a97de1d152ba0913c592d6e6dc83d38a6Michael Graff addr_bucket = entry->lock_bucket;

d981ca645597116d227a48bf37cc5edc061c854dBob Halley LOCK(&adb->entrylocks[addr_bucket]);

d981ca645597116d227a48bf37cc5edc061c854dBob Halley }

d981ca645597116d227a48bf37cc5edc061c854dBob Halley

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff dec_entry_refcnt(adb, entry, ISC_FALSE);

d981ca645597116d227a48bf37cc5edc061c854dBob Halley }

d981ca645597116d227a48bf37cc5edc061c854dBob Halley

d981ca645597116d227a48bf37cc5edc061c854dBob Halley /*

d981ca645597116d227a48bf37cc5edc061c854dBob Halley namehook->entry = NULL;

d981ca645597116d227a48bf37cc5edc061c854dBob Halley ISC_LIST_UNLINK(*namehooks, namehook, plink);

d981ca645597116d227a48bf37cc5edc061c854dBob Halley free_adbnamehook(adb, &namehook);

d981ca645597116d227a48bf37cc5edc061c854dBob Halley

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrews namehook = ISC_LIST_HEAD(*namehooks);

d981ca645597116d227a48bf37cc5edc061c854dBob Halley }

d981ca645597116d227a48bf37cc5edc061c854dBob Halley

d981ca645597116d227a48bf37cc5edc061c854dBob Halley if (addr_bucket != DNS_ADB_INVALIDBUCKET)

9916239908343b3eb17f0578de4c3cd6a313d85fMark Andrews UNLOCK(&adb->entrylocks[addr_bucket]);

d981ca645597116d227a48bf37cc5edc061c854dBob Halley}

9916239908343b3eb17f0578de4c3cd6a313d85fMark Andrews

d981ca645597116d227a48bf37cc5edc061c854dBob Halleystatic void

d981ca645597116d227a48bf37cc5edc061c854dBob Halleyclean_target(dns_adb_t *adb, dns_name_t *target) {

d981ca645597116d227a48bf37cc5edc061c854dBob Halley if (dns_name_countlabels(target) > 0) {

d981ca645597116d227a48bf37cc5edc061c854dBob Halley dns_name_free(target, adb->mctx);

3ddd814a97de1d152ba0913c592d6e6dc83d38a6Michael Graff dns_name_init(target, NULL);

0513f89e68f82f9ec54e7af9c979a7c43babbe31Bob Halley }

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff}

0513f89e68f82f9ec54e7af9c979a7c43babbe31Bob Halley

9916239908343b3eb17f0578de4c3cd6a313d85fMark Andrewsstatic isc_result_t

0513f89e68f82f9ec54e7af9c979a7c43babbe31Bob Halleyset_target(dns_adb_t *adb, dns_name_t *name, dns_name_t *fname,

0513f89e68f82f9ec54e7af9c979a7c43babbe31Bob Halley dns_rdataset_t *rdataset, dns_name_t *target)

0513f89e68f82f9ec54e7af9c979a7c43babbe31Bob Halley{

0513f89e68f82f9ec54e7af9c979a7c43babbe31Bob Halley isc_result_t result;

0513f89e68f82f9ec54e7af9c979a7c43babbe31Bob Halley dns_namereln_t namereln;

0513f89e68f82f9ec54e7af9c979a7c43babbe31Bob Halley unsigned int nlabels, nbits;

0513f89e68f82f9ec54e7af9c979a7c43babbe31Bob Halley int order;

c03bb27f0675a6e60ceea66b451548e8481bc05cMark Andrews dns_rdata_t rdata;

0513f89e68f82f9ec54e7af9c979a7c43babbe31Bob Halley isc_region_t r;

0513f89e68f82f9ec54e7af9c979a7c43babbe31Bob Halley dns_name_t tname;

0513f89e68f82f9ec54e7af9c979a7c43babbe31Bob Halley dns_fixedname_t fixed1, fixed2;

9916239908343b3eb17f0578de4c3cd6a313d85fMark Andrews dns_name_t *prefix, *new_target;

9916239908343b3eb17f0578de4c3cd6a313d85fMark Andrews

9916239908343b3eb17f0578de4c3cd6a313d85fMark Andrews REQUIRE(dns_name_countlabels(target) == 0);

9916239908343b3eb17f0578de4c3cd6a313d85fMark Andrews

0513f89e68f82f9ec54e7af9c979a7c43babbe31Bob Halley if (rdataset->type == dns_rdatatype_cname) {

0513f89e68f82f9ec54e7af9c979a7c43babbe31Bob Halley /*

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews result = dns_rdataset_first(rdataset);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews if (result != ISC_R_SUCCESS)

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews return (result);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews dns_rdataset_current(rdataset, &rdata);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews r.base = rdata.data;

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews r.length = rdata.length;

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews dns_name_init(&tname, NULL);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews dns_name_fromregion(&tname, &r);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews result = dns_name_dup(&tname, adb->mctx, target);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews if (result != ISC_R_SUCCESS)

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews return (result);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews } else {

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews INSIST(rdataset->type == dns_rdatatype_dname);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews namereln = dns_name_fullcompare(name, fname, &order,

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews &nlabels, &nbits);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews INSIST(namereln == dns_namereln_subdomain);

2047977ce2dfcfe3a0fa2d638c3242841310fad3Mark Andrews /*

6324997211a5e2d82528dcde98e8981190a35faeMichael Graff result = dns_rdataset_first(rdataset);

6324997211a5e2d82528dcde98e8981190a35faeMichael Graff if (result != ISC_R_SUCCESS)

6324997211a5e2d82528dcde98e8981190a35faeMichael Graff return (result);

28b863e609ff2d97b78663b46894494cfa2ea411Mark Andrews dns_rdataset_current(rdataset, &rdata);

28b863e609ff2d97b78663b46894494cfa2ea411Mark Andrews r.base = rdata.data;

28b863e609ff2d97b78663b46894494cfa2ea411Mark Andrews r.length = rdata.length;

471e0563c7965c556c759775882cd3448dae78eaMark Andrews dns_name_init(&tname, NULL);

6324997211a5e2d82528dcde98e8981190a35faeMichael Graff dns_name_fromregion(&tname, &r);

6324997211a5e2d82528dcde98e8981190a35faeMichael Graff /*

94a537e6ab3069f8d34e12e5ea722250be2b89c8Michael Graff dns_fixedname_init(&fixed1);

a98551ef592e9be6008e0141ceeb32efd586c5efMark Andrews prefix = dns_fixedname_name(&fixed1);

94a537e6ab3069f8d34e12e5ea722250be2b89c8Michael Graff dns_fixedname_init(&fixed2);

94a537e6ab3069f8d34e12e5ea722250be2b89c8Michael Graff new_target = dns_fixedname_name(&fixed2);

94a537e6ab3069f8d34e12e5ea722250be2b89c8Michael Graff result = dns_name_split(name, nlabels, nbits, prefix, NULL);

94a537e6ab3069f8d34e12e5ea722250be2b89c8Michael Graff if (result != ISC_R_SUCCESS)

94a537e6ab3069f8d34e12e5ea722250be2b89c8Michael Graff return (result);

94a537e6ab3069f8d34e12e5ea722250be2b89c8Michael Graff result = dns_name_concatenate(prefix, &tname, new_target,

94a537e6ab3069f8d34e12e5ea722250be2b89c8Michael Graff NULL);

47b26abe77184f9bedc68e36bdad03332cf67570David Lawrence if (result != ISC_R_SUCCESS)

47b26abe77184f9bedc68e36bdad03332cf67570David Lawrence return (result);

94a537e6ab3069f8d34e12e5ea722250be2b89c8Michael Graff result = dns_name_dup(new_target, adb->mctx, target);

94a537e6ab3069f8d34e12e5ea722250be2b89c8Michael Graff if (result != ISC_R_SUCCESS)

94a537e6ab3069f8d34e12e5ea722250be2b89c8Michael Graff return (result);

94a537e6ab3069f8d34e12e5ea722250be2b89c8Michael Graff }

29747dfe5e073a299b3681e01f5c55540f8bfed7Mark Andrews

94a537e6ab3069f8d34e12e5ea722250be2b89c8Michael Graff return (ISC_R_SUCCESS);

94a537e6ab3069f8d34e12e5ea722250be2b89c8Michael Graff}

94a537e6ab3069f8d34e12e5ea722250be2b89c8Michael Graff

8695d7b357789bedff63e5b19c5ab25cd58fcd4bMark Andrewsstatic void

8695d7b357789bedff63e5b19c5ab25cd58fcd4bMark Andrewsevent_free(isc_event_t *event) {

ebfcb6cf66283096ebda1503b6cc042ce86b6bedBrian Wellington dns_adbfind_t *find;

9be230cfca126bea6b666f506a230ffcdfba60dbMark Andrews

8695d7b357789bedff63e5b19c5ab25cd58fcd4bMark Andrews INSIST(event != NULL);

beed6a0e226fbd0c18c19a3e341a2003cba020a5Mark Andrews find = event->ev_destroy_arg;

beed6a0e226fbd0c18c19a3e341a2003cba020a5Mark Andrews INSIST(DNS_ADBFIND_VALID(find));

beed6a0e226fbd0c18c19a3e341a2003cba020a5Mark Andrews

9be230cfca126bea6b666f506a230ffcdfba60dbMark Andrews LOCK(&find->lock);

ebfcb6cf66283096ebda1503b6cc042ce86b6bedBrian Wellington find->flags |= FIND_EVENT_FREED;

ebfcb6cf66283096ebda1503b6cc042ce86b6bedBrian Wellington event->ev_destroy_arg = NULL;

ebfcb6cf66283096ebda1503b6cc042ce86b6bedBrian Wellington UNLOCK(&find->lock);

ebfcb6cf66283096ebda1503b6cc042ce86b6bedBrian Wellington}

ebfcb6cf66283096ebda1503b6cc042ce86b6bedBrian Wellington

3ddd814a97de1d152ba0913c592d6e6dc83d38a6Michael Graffstatic void

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrenceclean_finds_at_name(dns_adbname_t *name, isc_eventtype_t evtype,

471e0563c7965c556c759775882cd3448dae78eaMark Andrews unsigned int addrs)

6324997211a5e2d82528dcde98e8981190a35faeMichael Graff{

28b863e609ff2d97b78663b46894494cfa2ea411Mark Andrews isc_event_t *ev;

cc083bb7031c04d57cbad41b2f5a796a4fd1865cMark Andrews isc_task_t *task;

471e0563c7965c556c759775882cd3448dae78eaMark Andrews dns_adbfind_t *find;

8d3e74b1683f714a484bbcf73249e8ee470e36d7Mark Andrews dns_adbfind_t *next_find;

8d3e74b1683f714a484bbcf73249e8ee470e36d7Mark Andrews isc_boolean_t process;

d3a86da2e8f09e2c3f55721aae537b9cacc7e537Andreas Gustafsson unsigned int wanted;

8c962eba3d6faebc008806ebb6bb9d08089118e9Andreas Gustafsson

8c962eba3d6faebc008806ebb6bb9d08089118e9Andreas Gustafsson DP(ENTER_LEVEL,

d3a86da2e8f09e2c3f55721aae537b9cacc7e537Andreas Gustafsson "ENTER clean_finds_at_name, name %p, evtype %08x, addrs %08x",

d3a86da2e8f09e2c3f55721aae537b9cacc7e537Andreas Gustafsson name, evtype, addrs);

d3a86da2e8f09e2c3f55721aae537b9cacc7e537Andreas Gustafsson

d3a86da2e8f09e2c3f55721aae537b9cacc7e537Andreas Gustafsson find = ISC_LIST_HEAD(name->finds);

e01f55daa4b611190a11a40299007e5e55018854Mark Andrews while (find != NULL) {

e01f55daa4b611190a11a40299007e5e55018854Mark Andrews LOCK(&find->lock);

e01f55daa4b611190a11a40299007e5e55018854Mark Andrews next_find = ISC_LIST_NEXT(find, plink);

d3a86da2e8f09e2c3f55721aae537b9cacc7e537Andreas Gustafsson

8c962eba3d6faebc008806ebb6bb9d08089118e9Andreas Gustafsson process = ISC_FALSE;

d3a86da2e8f09e2c3f55721aae537b9cacc7e537Andreas Gustafsson wanted = find->flags & DNS_ADBFIND_ADDRESSMASK;

d3a86da2e8f09e2c3f55721aae537b9cacc7e537Andreas Gustafsson

d3a86da2e8f09e2c3f55721aae537b9cacc7e537Andreas Gustafsson switch (evtype) {

d3a86da2e8f09e2c3f55721aae537b9cacc7e537Andreas Gustafsson case DNS_EVENT_ADBMOREADDRESSES:

d3a86da2e8f09e2c3f55721aae537b9cacc7e537Andreas Gustafsson DP(3, "DNS_EVENT_ADBMOREADDRESSES");

d3a86da2e8f09e2c3f55721aae537b9cacc7e537Andreas Gustafsson if ((wanted & addrs) != 0) {

d3a86da2e8f09e2c3f55721aae537b9cacc7e537Andreas Gustafsson DP(3, "processing");

d3a86da2e8f09e2c3f55721aae537b9cacc7e537Andreas Gustafsson find->flags &= ~addrs;

d3a86da2e8f09e2c3f55721aae537b9cacc7e537Andreas Gustafsson process = ISC_TRUE;

e01f55daa4b611190a11a40299007e5e55018854Mark Andrews }

e01f55daa4b611190a11a40299007e5e55018854Mark Andrews break;

d3a86da2e8f09e2c3f55721aae537b9cacc7e537Andreas Gustafsson case DNS_EVENT_ADBNOMOREADDRESSES:

d3a86da2e8f09e2c3f55721aae537b9cacc7e537Andreas Gustafsson DP(3, "DNS_EVENT_ADBNOMOREADDRESSES");

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence find->flags &= ~addrs;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence wanted = find->flags & DNS_ADBFIND_ADDRESSMASK;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence if (wanted == 0) {

a98551ef592e9be6008e0141ceeb32efd586c5efMark Andrews process = ISC_TRUE;

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews DP(3, "processing");

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews }

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews break;

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews default:

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews find->flags &= ~addrs;

3ddd814a97de1d152ba0913c592d6e6dc83d38a6Michael Graff process = ISC_TRUE;

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews }

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews if (process) {

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews DP(DEF_LEVEL, "cfan: processing find %p", find);

fe47f41b13620bfafc4f8cf65d5df24f1e568764Bob Halley /*

fe47f41b13620bfafc4f8cf65d5df24f1e568764Bob Halley ISC_LIST_UNLINK(name->finds, find, plink);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews find->adbname = NULL;

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews find->name_bucket = DNS_ADB_INVALIDBUCKET;

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews INSIST(!FIND_EVENTSENT(find));

0e8cf9a887c70f96ac448b06c069d90b830215ccMark Andrews

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews ev = &find->event;

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews task = ev->ev_sender;

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff ev->ev_sender = find;

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews ev->ev_type = evtype;

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews ev->ev_destroy = event_free;

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews ev->ev_destroy_arg = find;

ca2912424b1d7c348186a325dd2078a37bb8d818Andreas Gustafsson

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews DP(DEF_LEVEL,

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff "Sending event %p to task %p for find %p",

7755f5932a3e59d0c6a2506cc94519de92b91ca6Mark Andrews ev, task, find);

7755f5932a3e59d0c6a2506cc94519de92b91ca6Mark Andrews

7755f5932a3e59d0c6a2506cc94519de92b91ca6Mark Andrews isc_task_sendanddetach(&task, &ev);

7755f5932a3e59d0c6a2506cc94519de92b91ca6Mark Andrews } else {

c2b217ea1135f070da3856d3276895b3026e932aMark Andrews DP(DEF_LEVEL, "cfan: skipping find %p", find);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews }

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews UNLOCK(&find->lock);

7755f5932a3e59d0c6a2506cc94519de92b91ca6Mark Andrews find = next_find;

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews }

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff DP(ENTER_LEVEL, "EXIT clean_finds_at_name, name %p", name);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews}

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrewsstatic inline void

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrewscheck_exit(dns_adb_t *adb) {

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff isc_event_t *event;

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews isc_task_t *etask;

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews isc_boolean_t zeroirefcnt;

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews /*

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

fe47f41b13620bfafc4f8cf65d5df24f1e568764Bob Halley LOCK(&adb->ilock);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews if (adb->irefcnt == 0)

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff zeroirefcnt = ISC_TRUE;

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews else

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews zeroirefcnt = ISC_FALSE;

3ddd814a97de1d152ba0913c592d6e6dc83d38a6Michael Graff UNLOCK(&adb->ilock);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews if (adb->shutting_down && zeroirefcnt &&

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews isc_mempool_getallocated(adb->ahmp) == 0) {

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews /*

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews event = ISC_LIST_HEAD(adb->whenshutdown);

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews while (event != NULL) {

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews ISC_LIST_UNLINK(adb->whenshutdown, event, ev_link);

6e49e91bd08778d7eae45a2229dcf41ed97cc636David Lawrence etask = event->ev_sender;

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews event->ev_sender = adb;

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews isc_task_sendanddetach(&etask, &event);

f0ff273b530afa730025e1c5ad311950f7ff4328Mark Andrews event = ISC_LIST_HEAD(adb->whenshutdown);

f0ff273b530afa730025e1c5ad311950f7ff4328Mark Andrews }

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews /*

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence if (adb->erefcnt == 0) {

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews INSIST(!adb->cevent_sent); /* Sanity check. */

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews event = &adb->cevent;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence isc_task_send(adb->task, &event);

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence adb->cevent_sent = ISC_TRUE;

8abddcd3f24476b945419659e7cb73bcb970886bDavid Lawrence }

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews }

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews}

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews

ad493ef9ddb5a3e78e9d99f57abe75552f36a8f4Andreas Gustafssonstatic inline void

7c0378745269fe49a05904935afc42b85528f53aDavid Lawrencedec_adb_irefcnt(dns_adb_t *adb) {

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews LOCK(&adb->ilock);

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews INSIST(adb->irefcnt > 0);

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews adb->irefcnt--;

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews UNLOCK(&adb->ilock);

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews}

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrewsstatic inline void

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrewsinc_adb_erefcnt(dns_adb_t *adb, isc_boolean_t lock) {

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews if (lock)

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews LOCK(&adb->lock);

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews adb->erefcnt++;

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews if (lock)

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews UNLOCK(&adb->lock);

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews}

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrewsstatic inline void

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrewsdec_adb_erefcnt(dns_adb_t *adb, isc_boolean_t lock) {

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews if (lock)

40f53fa8d9c6a4fc38c0014495e7a42b08f52481David Lawrence LOCK(&adb->lock);

a5a30ae7c0636a57d8575acb98fdf906c0ea818fMark Andrews

a5a30ae7c0636a57d8575acb98fdf906c0ea818fMark Andrews INSIST(adb->erefcnt > 0);

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews adb->erefcnt--;

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews if (adb->erefcnt == 0)

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews check_exit(adb);

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews if (lock)

7d62ddffbb4d1cc97b8d80b7ee4944554a57523eMark Andrews UNLOCK(&adb->lock);

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff}

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrewsstatic inline void

3ddd814a97de1d152ba0913c592d6e6dc83d38a6Michael Graffinc_entry_refcnt(dns_adb_t *adb, dns_adbentry_t *entry, isc_boolean_t lock) {

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews int bucket;

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews bucket = entry->lock_bucket;

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews if (lock)

6e49e91bd08778d7eae45a2229dcf41ed97cc636David Lawrence LOCK(&adb->entrylocks[bucket]);

3d5cad69ec20157912e95cf3b79316dfb0a314f3Mark Andrews

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff entry->refcnt++;

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews if (lock)

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff UNLOCK(&adb->entrylocks[bucket]);

40f53fa8d9c6a4fc38c0014495e7a42b08f52481David Lawrence}

6e49e91bd08778d7eae45a2229dcf41ed97cc636David Lawrence

bfb2a81b65579882a80855c279cedc45aebd62e8Mark Andrewsstatic inline void

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graffdec_entry_refcnt(dns_adb_t *adb, dns_adbentry_t *entry, isc_boolean_t lock) {

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews int bucket;

7e9d637131516486630290d36c4c0db544cb700eMark Andrews isc_boolean_t destroy_entry;

7e9d637131516486630290d36c4c0db544cb700eMark Andrews

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews bucket = entry->lock_bucket;

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff if (lock)

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews LOCK(&adb->entrylocks[bucket]);

5d51e67c3b4f35c1be742574aacc1d88fe6ed444Mark Andrews

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont INSIST(entry->refcnt > 0);

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont entry->refcnt--;

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont destroy_entry = ISC_FALSE;

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont if (entry->refcnt == 0 &&

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont (adb->entry_sd[bucket] || entry->expires == 0)) {

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont destroy_entry = ISC_TRUE;

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont unlink_entry(adb, entry);

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont }

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont if (lock)

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont UNLOCK(&adb->entrylocks[bucket]);

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont if (!destroy_entry)

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont return;

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont entry->lock_bucket = DNS_ADB_INVALIDBUCKET;

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont free_adbentry(adb, &entry);

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont}

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupontstatic inline dns_adbname_t *

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupontnew_adbname(dns_adb_t *adb, dns_name_t *dnsname) {

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont dns_adbname_t *name;

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont name = isc_mempool_get(adb->nmp);

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont if (name == NULL)

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont return (NULL);

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont dns_name_init(&name->name, NULL);

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont if (dns_name_dup(dnsname, adb->mctx, &name->name) != ISC_R_SUCCESS) {

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont isc_mempool_put(adb->nmp, name);

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont return (NULL);

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont }

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont dns_name_init(&name->target, NULL);

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont name->magic = DNS_ADBNAME_MAGIC;

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont name->adb = adb;

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont name->partial_result = 0;

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont name->flags = 0;

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont name->expire_v4 = INT_MAX;

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont name->expire_v6 = INT_MAX;

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont name->expire_target = INT_MAX;

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont name->chains = 0;

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont name->lock_bucket = DNS_ADB_INVALIDBUCKET;

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont ISC_LIST_INIT(name->v4);

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont ISC_LIST_INIT(name->v6);

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont name->fetch_a = NULL;

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont name->fetch_aaaa = NULL;

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont ISC_LIST_INIT(name->fetches_a6);

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont ISC_LIST_INIT(name->finds);

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont ISC_LINK_INIT(name, plink);

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont return (name);

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont}

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupontstatic inline void

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupontfree_adbname(dns_adb_t *adb, dns_adbname_t **name) {

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont dns_adbname_t *n;

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont INSIST(name != NULL && DNS_ADBNAME_VALID(*name));

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont n = *name;

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont *name = NULL;

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont INSIST(!NAME_HAS_V4(n));

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont INSIST(!NAME_HAS_V6(n));

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont INSIST(!NAME_FETCH(n));

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont INSIST(ISC_LIST_EMPTY(n->finds));

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont INSIST(!ISC_LINK_LINKED(n, plink));

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont INSIST(n->lock_bucket == DNS_ADB_INVALIDBUCKET);

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont INSIST(n->adb == adb);

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont n->magic = 0;

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont dns_name_free(&n->name, adb->mctx);

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont isc_mempool_put(adb->nmp, n);

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont}

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupontstatic inline dns_adbnamehook_t *

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupontnew_adbnamehook(dns_adb_t *adb, dns_adbentry_t *entry) {

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont dns_adbnamehook_t *nh;

9fe8cca06537c45375c1e1d36b82501caf0ae090Francis Dupont