b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews

9c3531d72aeaad6c5f01efe6a1c82023e1379e4dDavid Lawrence

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews

92ef1a9b9dbd48ecb507b42ac62c15afefdaf838David Lawrence#include <config.h>

1a69a1a78cfaa86f3b68bbc965232b7876d4da2aDavid Lawrence

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews#include <isc/print.h>

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews#include <isc/string.h>

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews#include <isc/task.h>

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews#include <isc/timer.h>

e21d199dca95aff5d50f133d6b064309e209af00Brian Wellington#include <isc/util.h>

e43b9a20054cdda6946ab758e1c2005f2b25641aBrian Wellington

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews#include <dns/acl.h>

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews#include <dns/adb.h>

8b61d2012063306528286680bd9f086fa868d86eMark Andrews#include <dns/cache.h>

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews#include <dns/db.h>

19d1b1667d073850d4366352aaf8319efc5debeeBrian Wellington#include <dns/dispatch.h>

19d1b1667d073850d4366352aaf8319efc5debeeBrian Wellington#include <dns/ds.h>

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews#include <dns/events.h>

09f22ac5b09e70bc526015f37168ba33e21ea91fDavid Lawrence#include <dns/forward.h>

19d1b1667d073850d4366352aaf8319efc5debeeBrian Wellington#include <dns/keytable.h>

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews#include <dns/log.h>

92ef1a9b9dbd48ecb507b42ac62c15afefdaf838David Lawrence#include <dns/message.h>

92ef1a9b9dbd48ecb507b42ac62c15afefdaf838David Lawrence#include <dns/ncache.h>

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews#include <dns/opcode.h>

92ef1a9b9dbd48ecb507b42ac62c15afefdaf838David Lawrence#include <dns/peer.h>

92ef1a9b9dbd48ecb507b42ac62c15afefdaf838David Lawrence#include <dns/rbt.h>

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews#include <dns/rcode.h>

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews#include <dns/rdata.h>

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews#include <dns/rdataclass.h>

440164d3e36353a4b9801fcc05fe66b6cf1fb8ceMark Andrews#include <dns/rdatalist.h>

440164d3e36353a4b9801fcc05fe66b6cf1fb8ceMark Andrews#include <dns/rdataset.h>

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews#include <dns/rdatastruct.h>

28fc90e6c81338c5f34e065fdda49d320e362583Mark Andrews#include <dns/rdatatype.h>

ca9739800f045cd4d39014f98b920d4354b5bd14Michael Graff#include <dns/resolver.h>

ca9739800f045cd4d39014f98b920d4354b5bd14Michael Graff#include <dns/result.h>

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews#include <dns/rootns.h>

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews#include <dns/tsig.h>

ca9739800f045cd4d39014f98b920d4354b5bd14Michael Graff#include <dns/validator.h>

ca9739800f045cd4d39014f98b920d4354b5bd14Michael Graff

ca9739800f045cd4d39014f98b920d4354b5bd14Michael Graff#define DNS_RESOLVER_TRACE

ca9739800f045cd4d39014f98b920d4354b5bd14Michael Graff#ifdef DNS_RESOLVER_TRACE

46993e1d9d18410a5852b7d990338b70b158855cMichael Graff#define RTRACE(m) isc_log_write(dns_lctx, \

ca9739800f045cd4d39014f98b920d4354b5bd14Michael Graff DNS_LOGCATEGORY_RESOLVER, \

ca9739800f045cd4d39014f98b920d4354b5bd14Michael Graff DNS_LOGMODULE_RESOLVER, \

ca9739800f045cd4d39014f98b920d4354b5bd14Michael Graff ISC_LOG_DEBUG(3), \

ca9739800f045cd4d39014f98b920d4354b5bd14Michael Graff "res %p: %s", res, (m))

ca9739800f045cd4d39014f98b920d4354b5bd14Michael Graff#define RRTRACE(r, m) isc_log_write(dns_lctx, \

ca9739800f045cd4d39014f98b920d4354b5bd14Michael Graff DNS_LOGCATEGORY_RESOLVER, \

ca9739800f045cd4d39014f98b920d4354b5bd14Michael Graff DNS_LOGMODULE_RESOLVER, \

ca9739800f045cd4d39014f98b920d4354b5bd14Michael Graff ISC_LOG_DEBUG(3), \

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews "res %p: %s", (r), (m))

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews#define FCTXTRACE(m) isc_log_write(dns_lctx, \

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews DNS_LOGCATEGORY_RESOLVER, \

28fc90e6c81338c5f34e065fdda49d320e362583Mark Andrews DNS_LOGMODULE_RESOLVER, \

ca9739800f045cd4d39014f98b920d4354b5bd14Michael Graff ISC_LOG_DEBUG(3), \

ca9739800f045cd4d39014f98b920d4354b5bd14Michael Graff "fctx %p(%s'): %s", fctx, fctx->info, (m))

ca9739800f045cd4d39014f98b920d4354b5bd14Michael Graff#define FCTXTRACE2(m1, m2) \

ca9739800f045cd4d39014f98b920d4354b5bd14Michael Graff isc_log_write(dns_lctx, \

ca9739800f045cd4d39014f98b920d4354b5bd14Michael Graff DNS_LOGCATEGORY_RESOLVER, \

ca9739800f045cd4d39014f98b920d4354b5bd14Michael Graff DNS_LOGMODULE_RESOLVER, \

ca9739800f045cd4d39014f98b920d4354b5bd14Michael Graff ISC_LOG_DEBUG(3), \

ca9739800f045cd4d39014f98b920d4354b5bd14Michael Graff "fctx %p(%s): %s %s", \

ca9739800f045cd4d39014f98b920d4354b5bd14Michael Graff fctx, fctx->info, (m1), (m2))

ca9739800f045cd4d39014f98b920d4354b5bd14Michael Graff#define FTRACE(m) isc_log_write(dns_lctx, \

ca9739800f045cd4d39014f98b920d4354b5bd14Michael Graff DNS_LOGCATEGORY_RESOLVER, \

0f80bfec687db08a6e6ce945ef1d818da06c7ca9Brian Wellington DNS_LOGMODULE_RESOLVER, \

19d1b1667d073850d4366352aaf8319efc5debeeBrian Wellington ISC_LOG_DEBUG(3), \

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson "fetch %p (fctx %p(%s)): %s", \

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson fetch, fetch->private, \

cf70df7d0e24401a358f0b9c1a616ad0e8c783a6Mark Andrews fetch->private->info, (m))

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff#define QTRACE(m) isc_log_write(dns_lctx, \

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews DNS_LOGCATEGORY_RESOLVER, \

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews DNS_LOGMODULE_RESOLVER, \

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews ISC_LOG_DEBUG(3), \

046a9aca49bdc25bd57d75fd0dd34c021722f095Mark Andrews "resquery %p (fctx %p(%s)): %s", \

8068ceb2a9cc56d18016c3cd94a09e4bb0bc7b0dAndreas Gustafsson query, query->fctx, \

8068ceb2a9cc56d18016c3cd94a09e4bb0bc7b0dAndreas Gustafsson query->fctx->info, (m))

046a9aca49bdc25bd57d75fd0dd34c021722f095Mark Andrews#else

046a9aca49bdc25bd57d75fd0dd34c021722f095Mark Andrews#define RTRACE(m)

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews#define RRTRACE(r, m)

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews#define FCTXTRACE(m)

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews#define FTRACE(m)

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews#define QTRACE(m)

046a9aca49bdc25bd57d75fd0dd34c021722f095Mark Andrews#endif

046a9aca49bdc25bd57d75fd0dd34c021722f095Mark Andrews

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews#define RECV_BUFFER_SIZE 4096 /* XXXRTH Constant. */

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews#define MAX_EDNS0_TIMEOUTS 3

440164d3e36353a4b9801fcc05fe66b6cf1fb8ceMark Andrews

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrewstypedef struct fetchctx fetchctx_t;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews

59abb512d344bfa09012cc11b7d814966f035da4Mark Andrewstypedef struct query {

559bb1016f1b00a3661cb2790dc837a977057b86Mark Andrews /* Locked by task event serialization. */

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews unsigned int magic;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews fetchctx_t * fctx;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews isc_mem_t * mctx;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews dns_dispatchmgr_t * dispatchmgr;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews dns_dispatch_t * dispatch;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews dns_adbaddrinfo_t * addrinfo;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews isc_socket_t * tcpsocket;

76c8294c81fb48b1da6e1fc5b83322a4cedb8e58Andreas Gustafsson isc_time_t start;

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson dns_messageid_t id;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews dns_dispentry_t * dispentry;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews ISC_LINK(struct query) link;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews isc_buffer_t buffer;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews isc_buffer_t *tsig;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews dns_tsigkey_t *tsigkey;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews unsigned int options;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews unsigned int attributes;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews unsigned int sends;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews unsigned int connects;

46993e1d9d18410a5852b7d990338b70b158855cMichael Graff unsigned char data[512];

ca9739800f045cd4d39014f98b920d4354b5bd14Michael Graff} resquery_t;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews#define QUERY_MAGIC ISC_MAGIC('Q', '!', '!', '!')

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews#define VALID_QUERY(query) ISC_MAGIC_VALID(query, QUERY_MAGIC)

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews#define RESQUERY_ATTR_CANCELED 0x02

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews#define RESQUERY_CONNECTING(q) ((q)->connects > 0)

440164d3e36353a4b9801fcc05fe66b6cf1fb8ceMark Andrews#define RESQUERY_CANCELED(q) (((q)->attributes & \

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews RESQUERY_ATTR_CANCELED) != 0)

8b61d2012063306528286680bd9f086fa868d86eMark Andrews#define RESQUERY_SENDING(q) ((q)->sends > 0)

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrewstypedef enum {

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews fetchstate_init = 0, /*%< Start event has not run yet. */

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews fetchstate_active,

46993e1d9d18410a5852b7d990338b70b158855cMichael Graff fetchstate_done /*%< FETCHDONE events posted. */

ca9739800f045cd4d39014f98b920d4354b5bd14Michael Graff} fetchstate;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrewsstruct fetchctx {

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews /*% Not locked. */

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews unsigned int magic;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews dns_resolver_t * res;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews dns_name_t name;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews dns_rdatatype_t type;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews unsigned int options;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews unsigned int bucketnum;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews char * info;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews /*% Locked by appropriate bucket lock. */

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews fetchstate state;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews isc_boolean_t want_shutdown;

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews isc_boolean_t cloned;

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff isc_boolean_t spilled;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews unsigned int references;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews isc_event_t control_event;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews ISC_LINK(struct fetchctx) link;

440164d3e36353a4b9801fcc05fe66b6cf1fb8ceMark Andrews ISC_LIST(dns_fetchevent_t) events;

440164d3e36353a4b9801fcc05fe66b6cf1fb8ceMark Andrews /*% Locked by task event serialization. */

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff dns_name_t domain;

440164d3e36353a4b9801fcc05fe66b6cf1fb8ceMark Andrews dns_rdataset_t nameservers;

5e387b9ce6bafdfadedb5b34e4c33a4404e5d589Brian Wellington unsigned int attributes;

5e387b9ce6bafdfadedb5b34e4c33a4404e5d589Brian Wellington isc_timer_t * timer;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews isc_time_t expires;

440164d3e36353a4b9801fcc05fe66b6cf1fb8ceMark Andrews isc_interval_t interval;

440164d3e36353a4b9801fcc05fe66b6cf1fb8ceMark Andrews dns_message_t * qmessage;

440164d3e36353a4b9801fcc05fe66b6cf1fb8ceMark Andrews dns_message_t * rmessage;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews ISC_LIST(resquery_t) queries;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews dns_adbfindlist_t finds;

46993e1d9d18410a5852b7d990338b70b158855cMichael Graff dns_adbfind_t * find;

ca9739800f045cd4d39014f98b920d4354b5bd14Michael Graff dns_adbfindlist_t altfinds;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews dns_adbfind_t * altfind;

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews dns_adbaddrinfolist_t forwaddrs;

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews dns_adbaddrinfolist_t altaddrs;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews isc_sockaddrlist_t forwarders;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews dns_fwdpolicy_t fwdpolicy;

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews isc_sockaddrlist_t bad;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews isc_sockaddrlist_t edns;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews isc_sockaddrlist_t edns512;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews ISC_LIST(dns_validator_t) validators;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews dns_db_t * cache;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews dns_adb_t * adb;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews /*%

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews unsigned int pending;

8b61d2012063306528286680bd9f086fa868d86eMark Andrews

8b61d2012063306528286680bd9f086fa868d86eMark Andrews /*%

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews unsigned int restarts;

78838d3e0cd62423c23de5503910e01884d2104bBrian Wellington

78838d3e0cd62423c23de5503910e01884d2104bBrian Wellington /*%

78838d3e0cd62423c23de5503910e01884d2104bBrian Wellington unsigned int timeouts;

78838d3e0cd62423c23de5503910e01884d2104bBrian Wellington /*%

78838d3e0cd62423c23de5503910e01884d2104bBrian Wellington dns_name_t nsname;

78838d3e0cd62423c23de5503910e01884d2104bBrian Wellington dns_fetch_t * nsfetch;

78838d3e0cd62423c23de5503910e01884d2104bBrian Wellington dns_rdataset_t nsrrset;

78838d3e0cd62423c23de5503910e01884d2104bBrian Wellington};

78838d3e0cd62423c23de5503910e01884d2104bBrian Wellington

78838d3e0cd62423c23de5503910e01884d2104bBrian Wellington#define FCTX_MAGIC ISC_MAGIC('F', '!', '!', '!')

78838d3e0cd62423c23de5503910e01884d2104bBrian Wellington#define VALID_FCTX(fctx) ISC_MAGIC_VALID(fctx, FCTX_MAGIC)

78838d3e0cd62423c23de5503910e01884d2104bBrian Wellington

78838d3e0cd62423c23de5503910e01884d2104bBrian Wellington#define FCTX_ATTR_HAVEANSWER 0x0001

78838d3e0cd62423c23de5503910e01884d2104bBrian Wellington#define FCTX_ATTR_GLUING 0x0002

78838d3e0cd62423c23de5503910e01884d2104bBrian Wellington#define FCTX_ATTR_ADDRWAIT 0x0004

78838d3e0cd62423c23de5503910e01884d2104bBrian Wellington#define FCTX_ATTR_SHUTTINGDOWN 0x0008

78838d3e0cd62423c23de5503910e01884d2104bBrian Wellington#define FCTX_ATTR_WANTCACHE 0x0010

78838d3e0cd62423c23de5503910e01884d2104bBrian Wellington#define FCTX_ATTR_WANTNCACHE 0x0020

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews#define FCTX_ATTR_NEEDEDNS0 0x0040

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews#define FCTX_ATTR_TRIEDFIND 0x0080

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews#define FCTX_ATTR_TRIEDALT 0x0100

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews#define HAVE_ANSWER(f) (((f)->attributes & FCTX_ATTR_HAVEANSWER) != \

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews 0)

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews#define GLUING(f) (((f)->attributes & FCTX_ATTR_GLUING) != \

78838d3e0cd62423c23de5503910e01884d2104bBrian Wellington 0)

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews#define ADDRWAIT(f) (((f)->attributes & FCTX_ATTR_ADDRWAIT) != \

8b61d2012063306528286680bd9f086fa868d86eMark Andrews 0)

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews#define SHUTTINGDOWN(f) (((f)->attributes & FCTX_ATTR_SHUTTINGDOWN) \

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews != 0)

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews#define WANTCACHE(f) (((f)->attributes & FCTX_ATTR_WANTCACHE) != 0)

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews#define WANTNCACHE(f) (((f)->attributes & FCTX_ATTR_WANTNCACHE) != 0)

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews#define NEEDEDNS0(f) (((f)->attributes & FCTX_ATTR_NEEDEDNS0) != 0)

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews#define TRIEDFIND(f) (((f)->attributes & FCTX_ATTR_TRIEDFIND) != 0)

40f53fa8d9c6a4fc38c0014495e7a42b08f52481David Lawrence#define TRIEDALT(f) (((f)->attributes & FCTX_ATTR_TRIEDALT) != 0)

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrewstypedef struct {

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews dns_adbaddrinfo_t * addrinfo;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews fetchctx_t * fctx;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews} dns_valarg_t;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrewsstruct dns_fetch {

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews unsigned int magic;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews fetchctx_t * private;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews};

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews#define DNS_FETCH_MAGIC ISC_MAGIC('F', 't', 'c', 'h')

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews#define DNS_FETCH_VALID(fetch) ISC_MAGIC_VALID(fetch, DNS_FETCH_MAGIC)

4be19dcd14cea678511f1d1b269ab89273e987eeMark Andrews

4be19dcd14cea678511f1d1b269ab89273e987eeMark Andrewstypedef struct fctxbucket {

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews isc_task_t * task;

4be19dcd14cea678511f1d1b269ab89273e987eeMark Andrews isc_mutex_t lock;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews ISC_LIST(fetchctx_t) fctxs;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews isc_boolean_t exiting;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews isc_mem_t * mctx;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews} fctxbucket_t;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrewstypedef struct alternate {

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews isc_boolean_t isaddress;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews union {

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews isc_sockaddr_t addr;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews struct {

78838d3e0cd62423c23de5503910e01884d2104bBrian Wellington dns_name_t name;

78838d3e0cd62423c23de5503910e01884d2104bBrian Wellington in_port_t port;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews } _n;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews } _u;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews ISC_LINK(struct alternate) link;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews} alternate_t;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews

8b61d2012063306528286680bd9f086fa868d86eMark Andrewsstruct dns_resolver {

8b61d2012063306528286680bd9f086fa868d86eMark Andrews /* Unlocked. */

8b61d2012063306528286680bd9f086fa868d86eMark Andrews unsigned int magic;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews isc_mem_t * mctx;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews isc_mutex_t lock;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews isc_mutex_t nlock;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews isc_mutex_t primelock;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews dns_rdataclass_t rdclass;

f53848e17123569387b279578f0100dca5407da5Mark Andrews isc_socketmgr_t * socketmgr;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews isc_timermgr_t * timermgr;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews isc_taskmgr_t * taskmgr;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews dns_view_t * view;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews isc_boolean_t frozen;

8b61d2012063306528286680bd9f086fa868d86eMark Andrews unsigned int options;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews dns_dispatchmgr_t * dispatchmgr;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews dns_dispatch_t * dispatchv4;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews dns_dispatch_t * dispatchv6;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews unsigned int nbuckets;

8b61d2012063306528286680bd9f086fa868d86eMark Andrews fctxbucket_t * buckets;

8b61d2012063306528286680bd9f086fa868d86eMark Andrews isc_uint32_t lame_ttl;

8b61d2012063306528286680bd9f086fa868d86eMark Andrews ISC_LIST(alternate_t) alternates;

8b61d2012063306528286680bd9f086fa868d86eMark Andrews isc_uint16_t udpsize;

4be19dcd14cea678511f1d1b269ab89273e987eeMark Andrews#if USE_ALGLOCK

4be19dcd14cea678511f1d1b269ab89273e987eeMark Andrews isc_rwlock_t alglock;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews#endif

4be19dcd14cea678511f1d1b269ab89273e987eeMark Andrews dns_rbt_t * algorithms;

4be19dcd14cea678511f1d1b269ab89273e987eeMark Andrews#if USE_MBSLOCK

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews isc_rwlock_t mbslock;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews#endif

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews dns_rbt_t * mustbesecure;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews unsigned int spillatmax;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews unsigned int spillatmin;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews isc_timer_t * spillattimer;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews isc_boolean_t zero_no_soa_ttl;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews /* Locked by lock. */

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews unsigned int references;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews isc_boolean_t exiting;

78838d3e0cd62423c23de5503910e01884d2104bBrian Wellington isc_eventlist_t whenshutdown;

78838d3e0cd62423c23de5503910e01884d2104bBrian Wellington unsigned int activebuckets;

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews isc_boolean_t priming;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews unsigned int spillat;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews /* Locked by primelock. */

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews dns_fetch_t * primefetch;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews /* Locked by nlock. */

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews unsigned int nfctx;

8b61d2012063306528286680bd9f086fa868d86eMark Andrews};

8b61d2012063306528286680bd9f086fa868d86eMark Andrews

8b61d2012063306528286680bd9f086fa868d86eMark Andrews#define RES_MAGIC ISC_MAGIC('R', 'e', 's', '!')

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews#define VALID_RESOLVER(res) ISC_MAGIC_VALID(res, RES_MAGIC)

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews#define FCTX_ADDRINFO_MARK 0x0001

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews#define FCTX_ADDRINFO_FORWARDER 0x1000

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews#define UNMARKED(a) (((a)->flags & FCTX_ADDRINFO_MARK) \

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews == 0)

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews#define ISFORWARDER(a) (((a)->flags & \

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews FCTX_ADDRINFO_FORWARDER) != 0)

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews#define NXDOMAIN(r) (((r)->attributes & DNS_RDATASETATTR_NXDOMAIN) != 0)

8b61d2012063306528286680bd9f086fa868d86eMark Andrews

8b61d2012063306528286680bd9f086fa868d86eMark Andrewsstatic void destroy(dns_resolver_t *res);

8b61d2012063306528286680bd9f086fa868d86eMark Andrewsstatic void empty_bucket(dns_resolver_t *res);

8b61d2012063306528286680bd9f086fa868d86eMark Andrewsstatic isc_result_t resquery_send(resquery_t *query);

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrewsstatic void resquery_response(isc_task_t *task, isc_event_t *event);

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrewsstatic void resquery_connected(isc_task_t *task, isc_event_t *event);

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrewsstatic void fctx_try(fetchctx_t *fctx);

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrewsstatic isc_boolean_t fctx_destroy(fetchctx_t *fctx);

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrewsstatic isc_result_t ncache_adderesult(dns_message_t *message,

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews dns_db_t *cache, dns_dbnode_t *node,

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews dns_rdatatype_t covers,

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews isc_stdtime_t now, dns_ttl_t maxttl,

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews dns_rdataset_t *ardataset,

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews isc_result_t *eresultp);

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrewsstatic void validated(isc_task_t *task, isc_event_t *event);

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrewsstatic isc_result_t

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrewsvalcreate(fetchctx_t *fctx, dns_adbaddrinfo_t *addrinfo, dns_name_t *name,

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews dns_rdatatype_t type, dns_rdataset_t *rdataset,

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews dns_rdataset_t *sigrdataset, unsigned int valoptions,

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews isc_task_t *task)

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews{

8b61d2012063306528286680bd9f086fa868d86eMark Andrews dns_validator_t *validator = NULL;

8b61d2012063306528286680bd9f086fa868d86eMark Andrews dns_valarg_t *valarg;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews isc_result_t result;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews valarg = isc_mem_get(fctx->res->buckets[fctx->bucketnum].mctx,

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews sizeof(*valarg));

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews if (valarg == NULL)

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews return (ISC_R_NOMEMORY);

e44487bfc23599b6b240e09d83d1c862fecfcc82Michael Graff

e44487bfc23599b6b240e09d83d1c862fecfcc82Michael Graff valarg->fctx = fctx;

e44487bfc23599b6b240e09d83d1c862fecfcc82Michael Graff valarg->addrinfo = addrinfo;

e44487bfc23599b6b240e09d83d1c862fecfcc82Michael Graff

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews result = dns_validator_create(fctx->res->view, name, type, rdataset,

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews sigrdataset, fctx->rmessage,

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews valoptions, task, validated, valarg,

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews &validator);

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews if (result == ISC_R_SUCCESS)

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews ISC_LIST_APPEND(fctx->validators, validator, link);

440164d3e36353a4b9801fcc05fe66b6cf1fb8ceMark Andrews else

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews isc_mem_put(fctx->res->buckets[fctx->bucketnum].mctx,

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews valarg, sizeof(*valarg));

8b61d2012063306528286680bd9f086fa868d86eMark Andrews return (result);

440164d3e36353a4b9801fcc05fe66b6cf1fb8ceMark Andrews}

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrewsstatic isc_boolean_t

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrewsfix_mustbedelegationornxdomain(dns_message_t *message, fetchctx_t *fctx) {

5e387b9ce6bafdfadedb5b34e4c33a4404e5d589Brian Wellington dns_name_t *name;

440164d3e36353a4b9801fcc05fe66b6cf1fb8ceMark Andrews dns_name_t *domain = &fctx->domain;

5e387b9ce6bafdfadedb5b34e4c33a4404e5d589Brian Wellington dns_rdataset_t *rdataset;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews dns_rdatatype_t type;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews isc_result_t result;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews isc_boolean_t keep_auth = ISC_FALSE;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews if (message->rcode == dns_rcode_nxdomain)

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews return (ISC_FALSE);

f3ca27e9fe307b55e35ea8d7b37351650630e5a3Andreas Gustafsson

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews /*

8b61d2012063306528286680bd9f086fa868d86eMark Andrews if (message->counts[DNS_SECTION_ANSWER] != 0 &&

440164d3e36353a4b9801fcc05fe66b6cf1fb8ceMark Andrews (fctx->type == dns_rdatatype_ns ||

440164d3e36353a4b9801fcc05fe66b6cf1fb8ceMark Andrews fctx->type == dns_rdatatype_any)) {

440164d3e36353a4b9801fcc05fe66b6cf1fb8ceMark Andrews result = dns_message_firstname(message, DNS_SECTION_ANSWER);

440164d3e36353a4b9801fcc05fe66b6cf1fb8ceMark Andrews while (result == ISC_R_SUCCESS) {

668eb43f1f24c887b6972f6a1610b4b38b281080Brian Wellington name = NULL;

440164d3e36353a4b9801fcc05fe66b6cf1fb8ceMark Andrews dns_message_currentname(message, DNS_SECTION_ANSWER,

440164d3e36353a4b9801fcc05fe66b6cf1fb8ceMark Andrews &name);

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews for (rdataset = ISC_LIST_HEAD(name->list);

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews rdataset != NULL;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews rdataset = ISC_LIST_NEXT(rdataset, link)) {

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews type = rdataset->type;

046a9aca49bdc25bd57d75fd0dd34c021722f095Mark Andrews if (type != dns_rdatatype_ns)

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews continue;

8b61d2012063306528286680bd9f086fa868d86eMark Andrews if (dns_name_issubdomain(name, domain))

8b61d2012063306528286680bd9f086fa868d86eMark Andrews return (ISC_FALSE);

390b2077fc751105e40174ceaa1ce34ef06e7dd4Mark Andrews }

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews result = dns_message_nextname(message,

6e49e91bd08778d7eae45a2229dcf41ed97cc636David Lawrence DNS_SECTION_ANSWER);

046a9aca49bdc25bd57d75fd0dd34c021722f095Mark Andrews }

046a9aca49bdc25bd57d75fd0dd34c021722f095Mark Andrews }

046a9aca49bdc25bd57d75fd0dd34c021722f095Mark Andrews

046a9aca49bdc25bd57d75fd0dd34c021722f095Mark Andrews /* Look for referral. */

046a9aca49bdc25bd57d75fd0dd34c021722f095Mark Andrews if (message->counts[DNS_SECTION_AUTHORITY] == 0)

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews goto munge;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington result = dns_message_firstname(message, DNS_SECTION_AUTHORITY);

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington while (result == ISC_R_SUCCESS) {

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington name = NULL;

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington dns_message_currentname(message, DNS_SECTION_AUTHORITY, &name);

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington for (rdataset = ISC_LIST_HEAD(name->list);

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington rdataset != NULL;

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington rdataset = ISC_LIST_NEXT(rdataset, link)) {

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington type = rdataset->type;

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington if (type == dns_rdatatype_soa &&

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington dns_name_equal(name, domain))

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington keep_auth = ISC_TRUE;

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington if (type != dns_rdatatype_ns &&

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington type != dns_rdatatype_soa)

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington continue;

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington if (dns_name_equal(name, domain))

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington goto munge;

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington if (dns_name_issubdomain(name, domain))

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington return (ISC_FALSE);

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington }

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington result = dns_message_nextname(message, DNS_SECTION_AUTHORITY);

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington }

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington munge:

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington message->rcode = dns_rcode_nxdomain;

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson message->counts[DNS_SECTION_ANSWER] = 0;

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson if (!keep_auth)

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson message->counts[DNS_SECTION_AUTHORITY] = 0;

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson message->counts[DNS_SECTION_ADDITIONAL] = 0;

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff return (ISC_TRUE);

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington}

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellingtonstatic inline isc_result_t

ac6afcd0caf72aaa2a537e0003de30b363b4a68bBrian Wellingtonfctx_starttimer(fetchctx_t *fctx) {

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington /*

97f26b88f62b10a9c26a91ebe8387d2e498c2d00Andreas Gustafsson return (isc_timer_reset(fctx->timer, isc_timertype_once,

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews &fctx->expires, NULL, ISC_TRUE));

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews}

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrewsstatic inline void

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrewsfctx_stoptimer(fetchctx_t *fctx) {

97f26b88f62b10a9c26a91ebe8387d2e498c2d00Andreas Gustafsson isc_result_t result;

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews /*

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews result = isc_timer_reset(fctx->timer, isc_timertype_inactive,

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews NULL, NULL, ISC_TRUE);

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews if (result != ISC_R_SUCCESS) {

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews UNEXPECTED_ERROR(__FILE__, __LINE__,

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews "isc_timer_reset(): %s",

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews isc_result_totext(result));

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews }

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews}

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrewsstatic inline isc_result_t

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrewsfctx_startidletimer(fetchctx_t *fctx) {

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews /*

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews return (isc_timer_reset(fctx->timer, isc_timertype_once,

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews &fctx->expires, &fctx->interval,

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews ISC_FALSE));

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews}

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews#define fctx_stopidletimer fctx_starttimer

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrewsstatic inline void

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrewsresquery_destroy(resquery_t **queryp) {

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews resquery_t *query;

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews REQUIRE(queryp != NULL);

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews query = *queryp;

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews REQUIRE(!ISC_LINK_LINKED(query, link));

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews INSIST(query->tcpsocket == NULL);

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews query->magic = 0;

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews isc_mem_put(query->mctx, query, sizeof(*query));

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews *queryp = NULL;

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews}

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrewsstatic void

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrewsfctx_cancelquery(resquery_t **queryp, dns_dispatchevent_t **deventp,

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews isc_time_t *finish, isc_boolean_t no_response)

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews{

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews fetchctx_t *fctx;

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews resquery_t *query;

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews unsigned int rtt;

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews unsigned int factor;

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews dns_adbfind_t *find;

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews dns_adbaddrinfo_t *addrinfo;

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews query = *queryp;

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews fctx = query->fctx;

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews FCTXTRACE("cancelquery");

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews REQUIRE(!RESQUERY_CANCELED(query));

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews query->attributes |= RESQUERY_ATTR_CANCELED;

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews /*

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews if (finish != NULL || no_response) {

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews if (finish != NULL) {

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews /*

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews rtt = (unsigned int)isc_time_microdiff(finish,

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews &query->start);

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews factor = DNS_ADB_RTTADJDEFAULT;

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews } else {

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews /*

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews INSIST(no_response);

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews rtt = query->addrinfo->srtt + 200000;

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews if (rtt > 10000000)

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews rtt = 10000000;

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews /*

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews factor = DNS_ADB_RTTADJREPLACE;

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews }

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews dns_adb_adjustsrtt(fctx->adb, query->addrinfo, rtt, factor);

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews }

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews /*

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews factor = DNS_ADB_RTTADJAGE;

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews if (finish != NULL)

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews for (addrinfo = ISC_LIST_HEAD(fctx->forwaddrs);

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews addrinfo != NULL;

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews addrinfo = ISC_LIST_NEXT(addrinfo, publink))

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews if (UNMARKED(addrinfo))

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews dns_adb_adjustsrtt(fctx->adb, addrinfo,

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews 0, factor);

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews if (finish != NULL && TRIEDFIND(fctx))

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews for (find = ISC_LIST_HEAD(fctx->finds);

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews find != NULL;

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews find = ISC_LIST_NEXT(find, publink))

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews for (addrinfo = ISC_LIST_HEAD(find->list);

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews addrinfo != NULL;

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews addrinfo = ISC_LIST_NEXT(addrinfo, publink))

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews if (UNMARKED(addrinfo))

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews dns_adb_adjustsrtt(fctx->adb, addrinfo,

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews 0, factor);

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews if (finish != NULL && TRIEDALT(fctx)) {

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews for (addrinfo = ISC_LIST_HEAD(fctx->altaddrs);

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews addrinfo != NULL;

cf70df7d0e24401a358f0b9c1a616ad0e8c783a6Mark Andrews addrinfo = ISC_LIST_NEXT(addrinfo, publink))

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews if (UNMARKED(addrinfo))

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews dns_adb_adjustsrtt(fctx->adb, addrinfo,

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews 0, factor);

cf70df7d0e24401a358f0b9c1a616ad0e8c783a6Mark Andrews for (find = ISC_LIST_HEAD(fctx->altfinds);

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews find != NULL;

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews find = ISC_LIST_NEXT(find, publink))

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews for (addrinfo = ISC_LIST_HEAD(find->list);

cf70df7d0e24401a358f0b9c1a616ad0e8c783a6Mark Andrews addrinfo != NULL;

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews addrinfo = ISC_LIST_NEXT(addrinfo, publink))

cf70df7d0e24401a358f0b9c1a616ad0e8c783a6Mark Andrews if (UNMARKED(addrinfo))

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews dns_adb_adjustsrtt(fctx->adb, addrinfo,

cf70df7d0e24401a358f0b9c1a616ad0e8c783a6Mark Andrews 0, factor);

cf70df7d0e24401a358f0b9c1a616ad0e8c783a6Mark Andrews }

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews if (query->dispentry != NULL)

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews dns_dispatch_removeresponse(&query->dispentry, deventp);

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews ISC_LIST_UNLINK(fctx->queries, query, link);

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews if (query->tsig != NULL)

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews isc_buffer_free(&query->tsig);

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews

cf70df7d0e24401a358f0b9c1a616ad0e8c783a6Mark Andrews if (query->tsigkey != NULL)

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff dns_tsigkey_detach(&query->tsigkey);

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff /*

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff if (RESQUERY_CONNECTING(query))

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff /*

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff isc_socket_cancel(query->tcpsocket, NULL,

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff ISC_SOCKCANCEL_CONNECT);

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff else if (RESQUERY_SENDING(query))

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff /*

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff isc_socket_cancel(dns_dispatch_getsocket(query->dispatch),

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff NULL, ISC_SOCKCANCEL_SEND);

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff if (query->dispatch != NULL)

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff dns_dispatch_detach(&query->dispatch);

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff if (! (RESQUERY_CONNECTING(query) || RESQUERY_SENDING(query)))

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff /*

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff resquery_destroy(&query);

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff}

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff

056141f2878d1046306ef0ba035263a00de57f98Mark Andrewsstatic void

056141f2878d1046306ef0ba035263a00de57f98Mark Andrewsfctx_cancelqueries(fetchctx_t *fctx, isc_boolean_t no_response) {

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews resquery_t *query, *next_query;

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews FCTXTRACE("cancelqueries");

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews for (query = ISC_LIST_HEAD(fctx->queries);

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews query != NULL;

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews query = next_query) {

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews next_query = ISC_LIST_NEXT(query, link);

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews fctx_cancelquery(&query, NULL, NULL, no_response);

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews }

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews}

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews

056141f2878d1046306ef0ba035263a00de57f98Mark Andrewsstatic void

056141f2878d1046306ef0ba035263a00de57f98Mark Andrewsfctx_cleanupfinds(fetchctx_t *fctx) {

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews dns_adbfind_t *find, *next_find;

6ef15459b8fd3fc8b5672da4ad72c19a755dbe45Mark Andrews

6ef15459b8fd3fc8b5672da4ad72c19a755dbe45Mark Andrews REQUIRE(ISC_LIST_EMPTY(fctx->queries));

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews for (find = ISC_LIST_HEAD(fctx->finds);

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews find != NULL;

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews find = next_find) {

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews next_find = ISC_LIST_NEXT(find, publink);

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews ISC_LIST_UNLINK(fctx->finds, find, publink);

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews dns_adb_destroyfind(&find);

e21d199dca95aff5d50f133d6b064309e209af00Brian Wellington }

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington fctx->find = NULL;

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington}

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellingtonstatic void

056141f2878d1046306ef0ba035263a00de57f98Mark Andrewsfctx_cleanupaltfinds(fetchctx_t *fctx) {

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff dns_adbfind_t *find, *next_find;

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff REQUIRE(ISC_LIST_EMPTY(fctx->queries));

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff for (find = ISC_LIST_HEAD(fctx->altfinds);

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff find != NULL;

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews find = next_find) {

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews next_find = ISC_LIST_NEXT(find, publink);

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews ISC_LIST_UNLINK(fctx->altfinds, find, publink);

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews dns_adb_destroyfind(&find);

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews }

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews fctx->altfind = NULL;

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews}

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews

056141f2878d1046306ef0ba035263a00de57f98Mark Andrewsstatic void

056141f2878d1046306ef0ba035263a00de57f98Mark Andrewsfctx_cleanupforwaddrs(fetchctx_t *fctx) {

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews dns_adbaddrinfo_t *addr, *next_addr;

f3ca27e9fe307b55e35ea8d7b37351650630e5a3Andreas Gustafsson

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews REQUIRE(ISC_LIST_EMPTY(fctx->queries));

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews for (addr = ISC_LIST_HEAD(fctx->forwaddrs);

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews addr != NULL;

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews addr = next_addr) {

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews next_addr = ISC_LIST_NEXT(addr, publink);

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews ISC_LIST_UNLINK(fctx->forwaddrs, addr, publink);

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews dns_adb_freeaddrinfo(fctx->adb, &addr);

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews }

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews}

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews

056141f2878d1046306ef0ba035263a00de57f98Mark Andrewsstatic void

056141f2878d1046306ef0ba035263a00de57f98Mark Andrewsfctx_cleanupaltaddrs(fetchctx_t *fctx) {

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews dns_adbaddrinfo_t *addr, *next_addr;

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews REQUIRE(ISC_LIST_EMPTY(fctx->queries));

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews for (addr = ISC_LIST_HEAD(fctx->altaddrs);

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews addr != NULL;

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews addr = next_addr) {

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews next_addr = ISC_LIST_NEXT(addr, publink);

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews ISC_LIST_UNLINK(fctx->altaddrs, addr, publink);

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews dns_adb_freeaddrinfo(fctx->adb, &addr);

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews }

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews}

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews

056141f2878d1046306ef0ba035263a00de57f98Mark Andrewsstatic inline void

056141f2878d1046306ef0ba035263a00de57f98Mark Andrewsfctx_stopeverything(fetchctx_t *fctx, isc_boolean_t no_response) {

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews FCTXTRACE("stopeverything");

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews fctx_cancelqueries(fctx, no_response);

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews fctx_cleanupfinds(fctx);

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews fctx_cleanupaltfinds(fctx);

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews fctx_cleanupforwaddrs(fctx);

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews fctx_cleanupaltaddrs(fctx);

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews fctx_stoptimer(fctx);

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews}

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews

056141f2878d1046306ef0ba035263a00de57f98Mark Andrewsstatic inline void

056141f2878d1046306ef0ba035263a00de57f98Mark Andrewsfctx_sendevents(fetchctx_t *fctx, isc_result_t result) {

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews dns_fetchevent_t *event, *next_event;

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews isc_task_t *task;

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews unsigned int count = 0;

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews isc_interval_t i;

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews isc_boolean_t logit = ISC_FALSE;

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews /*

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews REQUIRE(fctx->state == fetchstate_done);

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews FCTXTRACE("sendevents");

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews for (event = ISC_LIST_HEAD(fctx->events);

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews event != NULL;

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews event = next_event) {

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews next_event = ISC_LIST_NEXT(event, ev_link);

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews ISC_LIST_UNLINK(fctx->events, event, ev_link);

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews task = event->ev_sender;

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews event->ev_sender = fctx;

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff if (!HAVE_ANSWER(fctx))

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews event->result = result;

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews INSIST(result != ISC_R_SUCCESS ||

cf70df7d0e24401a358f0b9c1a616ad0e8c783a6Mark Andrews dns_rdataset_isassociated(event->rdataset) ||

cf70df7d0e24401a358f0b9c1a616ad0e8c783a6Mark Andrews fctx->type == dns_rdatatype_any ||

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews fctx->type == dns_rdatatype_rrsig ||

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews fctx->type == dns_rdatatype_sig);

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews isc_task_sendanddetach(&task, ISC_EVENT_PTR(&event));

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews count++;

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews }

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews if ((fctx->attributes & FCTX_ATTR_HAVEANSWER) != 0 &&

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews fctx->spilled &&

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews (count < fctx->res->spillatmax || fctx->res->spillatmax == 0)) {

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews LOCK(&fctx->res->lock);

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington if (count == fctx->res->spillat && !fctx->res->exiting) {

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington fctx->res->spillat += 5;

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews if (fctx->res->spillat > fctx->res->spillatmax &&

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews fctx->res->spillatmax != 0)

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews fctx->res->spillat = fctx->res->spillatmax;

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews isc_interval_set(&i, 20 * 60, 0);

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews result = isc_timer_reset(fctx->res->spillattimer,

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews isc_timertype_ticker, NULL,

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews &i, ISC_TRUE);

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews RUNTIME_CHECK(result == ISC_R_SUCCESS);

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews logit = ISC_TRUE;

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews }

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews UNLOCK(&fctx->res->lock);

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington if (logit)

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington isc_log_write(dns_lctx, DNS_LOGCATEGORY_RESOLVER,

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews DNS_LOGMODULE_RESOLVER, ISC_LOG_NOTICE,

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews "clients-per-query increased to %u",

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews count + 1);

056141f2878d1046306ef0ba035263a00de57f98Mark Andrews }

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews}

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrewsstatic void

19d1b1667d073850d4366352aaf8319efc5debeeBrian Wellingtonfctx_done(fetchctx_t *fctx, isc_result_t result) {

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews dns_resolver_t *res;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews isc_boolean_t no_response;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews

04c22ceaf2d3812eaab69d79958d0e0d62048cd2Mark Andrews FCTXTRACE("done");

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff res = fctx->res;

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff

04c22ceaf2d3812eaab69d79958d0e0d62048cd2Mark Andrews if (result == ISC_R_SUCCESS)

04c22ceaf2d3812eaab69d79958d0e0d62048cd2Mark Andrews no_response = ISC_TRUE;

04c22ceaf2d3812eaab69d79958d0e0d62048cd2Mark Andrews else

04c22ceaf2d3812eaab69d79958d0e0d62048cd2Mark Andrews no_response = ISC_FALSE;

04c22ceaf2d3812eaab69d79958d0e0d62048cd2Mark Andrews fctx_stopeverything(fctx, no_response);

04c22ceaf2d3812eaab69d79958d0e0d62048cd2Mark Andrews

04c22ceaf2d3812eaab69d79958d0e0d62048cd2Mark Andrews LOCK(&res->buckets[fctx->bucketnum].lock);

04c22ceaf2d3812eaab69d79958d0e0d62048cd2Mark Andrews

04c22ceaf2d3812eaab69d79958d0e0d62048cd2Mark Andrews fctx->state = fetchstate_done;

cf70df7d0e24401a358f0b9c1a616ad0e8c783a6Mark Andrews fctx->attributes &= ~FCTX_ATTR_ADDRWAIT;

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff fctx_sendevents(fctx, result);

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff UNLOCK(&res->buckets[fctx->bucketnum].lock);

cf70df7d0e24401a358f0b9c1a616ad0e8c783a6Mark Andrews}

cf70df7d0e24401a358f0b9c1a616ad0e8c783a6Mark Andrews

cf70df7d0e24401a358f0b9c1a616ad0e8c783a6Mark Andrewsstatic void

cf70df7d0e24401a358f0b9c1a616ad0e8c783a6Mark Andrewsresquery_senddone(isc_task_t *task, isc_event_t *event) {

cf70df7d0e24401a358f0b9c1a616ad0e8c783a6Mark Andrews isc_socketevent_t *sevent = (isc_socketevent_t *)event;

cf70df7d0e24401a358f0b9c1a616ad0e8c783a6Mark Andrews resquery_t *query = event->ev_arg;

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff isc_boolean_t retry = ISC_FALSE;

cf70df7d0e24401a358f0b9c1a616ad0e8c783a6Mark Andrews isc_result_t result;

cf70df7d0e24401a358f0b9c1a616ad0e8c783a6Mark Andrews fetchctx_t *fctx;

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff REQUIRE(event->ev_type == ISC_SOCKEVENT_SENDDONE);

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff QTRACE("senddone");

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff /*

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff UNUSED(task);

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff INSIST(RESQUERY_SENDING(query));

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff query->sends--;

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff fctx = query->fctx;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews if (RESQUERY_CANCELED(query)) {

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews if (query->sends == 0) {

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews /*

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews if (query->tcpsocket != NULL)

94baac869a70b529a24ff23d8dc899faa5d4fdc4Brian Wellington isc_socket_detach(&query->tcpsocket);

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews resquery_destroy(&query);

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews }

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews } else

04c22ceaf2d3812eaab69d79958d0e0d62048cd2Mark Andrews switch (sevent->result) {

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews case ISC_R_SUCCESS:

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews break;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews case ISC_R_HOSTUNREACH:

04c22ceaf2d3812eaab69d79958d0e0d62048cd2Mark Andrews case ISC_R_NETUNREACH:

04c22ceaf2d3812eaab69d79958d0e0d62048cd2Mark Andrews case ISC_R_NOPERM:

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews case ISC_R_ADDRNOTAVAIL:

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews case ISC_R_CONNREFUSED:

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington /*

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews fctx_cancelquery(&query, NULL, NULL, ISC_TRUE);

e21d199dca95aff5d50f133d6b064309e209af00Brian Wellington retry = ISC_TRUE;

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington break;

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington default:

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington fctx_cancelquery(&query, NULL, NULL, ISC_FALSE);

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews break;

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff }

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff isc_event_free(&event);

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff if (retry) {

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff /*

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews fctx->attributes &= ~FCTX_ATTR_ADDRWAIT;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews result = fctx_stopidletimer(fctx);

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews if (result != ISC_R_SUCCESS)

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews fctx_done(fctx, result);

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews else

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews fctx_try(fctx);

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews }

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews}

f3ca27e9fe307b55e35ea8d7b37351650630e5a3Andreas Gustafsson

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrewsstatic inline isc_result_t

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrewsfctx_addopt(dns_message_t *message, unsigned int version, isc_uint16_t udpsize)

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews{

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews dns_rdataset_t *rdataset;

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews dns_rdatalist_t *rdatalist;

e44487bfc23599b6b240e09d83d1c862fecfcc82Michael Graff dns_rdata_t *rdata;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews isc_result_t result;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews

c27767a7b946f4c6f08d33129691e2d6339e8350Brian Wellington rdatalist = NULL;

c27767a7b946f4c6f08d33129691e2d6339e8350Brian Wellington result = dns_message_gettemprdatalist(message, &rdatalist);

40f53fa8d9c6a4fc38c0014495e7a42b08f52481David Lawrence if (result != ISC_R_SUCCESS)

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews return (result);

dcc7ea97174501f0409c0c919b3ca04083e4e1b8Andreas Gustafsson rdata = NULL;

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews result = dns_message_gettemprdata(message, &rdata);

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews if (result != ISC_R_SUCCESS)

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews return (result);

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews rdataset = NULL;

7c2dce3c4d2c863ff268576f13c4ddd6f29d67edMark Andrews result = dns_message_gettemprdataset(message, &rdataset);

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews if (result != ISC_R_SUCCESS)

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews return (result);

04c22ceaf2d3812eaab69d79958d0e0d62048cd2Mark Andrews dns_rdataset_init(rdataset);

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews rdatalist->type = dns_rdatatype_opt;

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews rdatalist->covers = 0;

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews /*

1f1d36a87b65186d9f89aac7f456ab1fd2a39ef6Andreas Gustafsson rdatalist->rdclass = udpsize;

1f1d36a87b65186d9f89aac7f456ab1fd2a39ef6Andreas Gustafsson

1f1d36a87b65186d9f89aac7f456ab1fd2a39ef6Andreas Gustafsson /*

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews rdatalist->ttl = (version << 16);

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews rdatalist->ttl |= DNS_MESSAGEEXTFLAG_DO;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews /*

46993e1d9d18410a5852b7d990338b70b158855cMichael Graff rdata->data = NULL;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews rdata->length = 0;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews rdata->rdclass = rdatalist->rdclass;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews rdata->type = rdatalist->type;

94baac869a70b529a24ff23d8dc899faa5d4fdc4Brian Wellington rdata->flags = 0;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews ISC_LIST_INIT(rdatalist->rdata);

559bb1016f1b00a3661cb2790dc837a977057b86Mark Andrews ISC_LIST_APPEND(rdatalist->rdata, rdata, link);

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews RUNTIME_CHECK(dns_rdatalist_tordataset(rdatalist, rdataset) == ISC_R_SUCCESS);

0f80bfec687db08a6e6ce945ef1d818da06c7ca9Brian Wellington

0f80bfec687db08a6e6ce945ef1d818da06c7ca9Brian Wellington return (dns_message_setopt(message, rdataset));

0f80bfec687db08a6e6ce945ef1d818da06c7ca9Brian Wellington}

0f80bfec687db08a6e6ce945ef1d818da06c7ca9Brian Wellington

0f80bfec687db08a6e6ce945ef1d818da06c7ca9Brian Wellingtonstatic inline void

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrewsfctx_setretryinterval(fetchctx_t *fctx, unsigned int rtt) {

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews unsigned int seconds;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews unsigned int us;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews /*

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews if (fctx->restarts < 3)

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews us = 500000;

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews else

e903df2f012869e36251e9a76b13a9aa228fb1acMichael Graff us = (500000 << (fctx->restarts - 2));

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews /*

cf70df7d0e24401a358f0b9c1a616ad0e8c783a6Mark Andrews rtt *= 2;

04c22ceaf2d3812eaab69d79958d0e0d62048cd2Mark Andrews

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews /*

7ed73313b1c129c7134d7d33beb82c85bd6d1df4Mark Andrews if (us < rtt)

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews us = rtt;

04c22ceaf2d3812eaab69d79958d0e0d62048cd2Mark Andrews

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews /*

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews if (us > 10000000)

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington us = 10000000;

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews seconds = us / 1000000;

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews us -= seconds * 1000000;

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews isc_interval_set(&fctx->interval, seconds, us * 1000);

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews}

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrewsstatic isc_result_t

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrewsfctx_query(fetchctx_t *fctx, dns_adbaddrinfo_t *addrinfo,

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews unsigned int options)

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews{

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews dns_resolver_t *res;

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews isc_task_t *task;

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington isc_result_t result;

dac1e1dd18b62be8cc3bec1a3656968b7b8633e6Brian Wellington resquery_t *query;

8b61d2012063306528286680bd9f086fa868d86eMark Andrews isc_sockaddr_t addr;

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews isc_boolean_t have_addr = ISC_FALSE;

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews FCTXTRACE("query");

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews

559bb1016f1b00a3661cb2790dc837a977057b86Mark Andrews res = fctx->res;

559bb1016f1b00a3661cb2790dc837a977057b86Mark Andrews task = res->buckets[fctx->bucketnum].task;

559bb1016f1b00a3661cb2790dc837a977057b86Mark Andrews

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews fctx_setretryinterval(fctx, addrinfo->srtt);

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews result = fctx_startidletimer(fctx);

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews if (result != ISC_R_SUCCESS)

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews return (result);

559bb1016f1b00a3661cb2790dc837a977057b86Mark Andrews

e43b9a20054cdda6946ab758e1c2005f2b25641aBrian Wellington dns_message_reset(fctx->rmessage, DNS_MESSAGE_INTENTPARSE);

e43b9a20054cdda6946ab758e1c2005f2b25641aBrian Wellington

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews query = isc_mem_get(res->buckets[fctx->bucketnum].mctx,

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews sizeof(*query));

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews if (query == NULL) {

8b61d2012063306528286680bd9f086fa868d86eMark Andrews result = ISC_R_NOMEMORY;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews goto stop_idle_timer;

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews }

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews query->mctx = res->buckets[fctx->bucketnum].mctx;

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews query->options = options;

6e49e91bd08778d7eae45a2229dcf41ed97cc636David Lawrence query->attributes = 0;

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews query->sends = 0;

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews query->connects = 0;

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews /*

e43b9a20054cdda6946ab758e1c2005f2b25641aBrian Wellington query->addrinfo = addrinfo;

e43b9a20054cdda6946ab758e1c2005f2b25641aBrian Wellington TIME_NOW(&query->start);

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews /*

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews query->dispatchmgr = res->dispatchmgr;

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff query->dispatch = NULL;

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews query->tcpsocket = NULL;

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews if (res->view->peers != NULL) {

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff dns_peer_t *peer = NULL;

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews isc_netaddr_t dstip;

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews isc_netaddr_fromsockaddr(&dstip, &addrinfo->sockaddr);

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff result = dns_peerlist_peerbyaddr(res->view->peers,

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews &dstip, &peer);

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews if (result == ISC_R_SUCCESS) {

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff result = dns_peer_getquerysource(peer, &addr);

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews if (result == ISC_R_SUCCESS)

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews have_addr = ISC_TRUE;

419590499823ce15b5d2ad4fe71eaf04bd5a86c0Michael Graff }

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews }

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews

e43b9a20054cdda6946ab758e1c2005f2b25641aBrian Wellington if ((query->options & DNS_FETCHOPT_TCP) != 0) {

e43b9a20054cdda6946ab758e1c2005f2b25641aBrian Wellington int pf;

e43b9a20054cdda6946ab758e1c2005f2b25641aBrian Wellington

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews pf = isc_sockaddr_pf(&addrinfo->sockaddr);

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews if (!have_addr) {

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews switch (pf) {

6e49e91bd08778d7eae45a2229dcf41ed97cc636David Lawrence case PF_INET:

559bb1016f1b00a3661cb2790dc837a977057b86Mark Andrews result =

559bb1016f1b00a3661cb2790dc837a977057b86Mark Andrews dns_dispatch_getlocaladdress(res->dispatchv4,

559bb1016f1b00a3661cb2790dc837a977057b86Mark Andrews &addr);

559bb1016f1b00a3661cb2790dc837a977057b86Mark Andrews break;

559bb1016f1b00a3661cb2790dc837a977057b86Mark Andrews case PF_INET6:

559bb1016f1b00a3661cb2790dc837a977057b86Mark Andrews result =

559bb1016f1b00a3661cb2790dc837a977057b86Mark Andrews dns_dispatch_getlocaladdress(res->dispatchv6,

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews &addr);

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews break;

559bb1016f1b00a3661cb2790dc837a977057b86Mark Andrews default:

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews result = ISC_R_NOTIMPLEMENTED;

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews break;

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews }

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews if (result != ISC_R_SUCCESS)

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews goto cleanup_query;

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews }

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews isc_sockaddr_setport(&addr, 0);

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews result = isc_socket_create(res->socketmgr, pf,

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews isc_sockettype_tcp,

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews &query->tcpsocket);

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews if (result != ISC_R_SUCCESS)

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews goto cleanup_query;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews#ifndef BROKEN_TCP_BIND_BEFORE_CONNECT

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews result = isc_socket_bind(query->tcpsocket, &addr);

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews if (result != ISC_R_SUCCESS)

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews goto cleanup_socket;

e43b9a20054cdda6946ab758e1c2005f2b25641aBrian Wellington#endif

e43b9a20054cdda6946ab758e1c2005f2b25641aBrian Wellington

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews /*

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson } else {

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson if (have_addr) {

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson unsigned int attrs, attrmask;

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson attrs = DNS_DISPATCHATTR_UDP;

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson switch (isc_sockaddr_pf(&addr)) {

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson case AF_INET:

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson attrs |= DNS_DISPATCHATTR_IPV4;

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson break;

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson case AF_INET6:

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson attrs |= DNS_DISPATCHATTR_IPV6;

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson break;

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson default:

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson result = ISC_R_NOTIMPLEMENTED;

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson goto cleanup_query;

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson }

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson attrmask = DNS_DISPATCHATTR_UDP;

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson attrmask |= DNS_DISPATCHATTR_TCP;

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson attrmask |= DNS_DISPATCHATTR_IPV4;

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson attrmask |= DNS_DISPATCHATTR_IPV6;

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson result = dns_dispatch_getudp(res->dispatchmgr,

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson res->socketmgr,

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson res->taskmgr, &addr,

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson 4096, 1000, 32768, 16411,

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson 16433, attrs, attrmask,

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson &query->dispatch);

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson if (result != ISC_R_SUCCESS)

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson goto cleanup_query;

8068ceb2a9cc56d18016c3cd94a09e4bb0bc7b0dAndreas Gustafsson } else {

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson switch (isc_sockaddr_pf(&addrinfo->sockaddr)) {

8068ceb2a9cc56d18016c3cd94a09e4bb0bc7b0dAndreas Gustafsson case PF_INET:

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson dns_dispatch_attach(res->dispatchv4,

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson &query->dispatch);

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson break;

1f1d36a87b65186d9f89aac7f456ab1fd2a39ef6Andreas Gustafsson case PF_INET6:

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews dns_dispatch_attach(res->dispatchv6,

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews &query->dispatch);

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews break;

8b61d2012063306528286680bd9f086fa868d86eMark Andrews default:

8b61d2012063306528286680bd9f086fa868d86eMark Andrews result = ISC_R_NOTIMPLEMENTED;

390b2077fc751105e40174ceaa1ce34ef06e7dd4Mark Andrews goto cleanup_query;

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews }

440164d3e36353a4b9801fcc05fe66b6cf1fb8ceMark Andrews }

8f17525ebc8ab06446b613f56972dcf063548141Andreas Gustafsson /*

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews INSIST(query->dispatch != NULL);

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews }

59abb512d344bfa09012cc11b7d814966f035da4Mark Andrews

6850cdd4497424c9d42ade487edfde9fb9a47de9Brian Wellington query->dispentry = NULL;

59abb512d344bfa09012cc11b7d814966f035da4Mark Andrews query->fctx = fctx;

84a47e20aedd16ba86feb25848732338ad618b16Brian Wellington query->tsig = NULL;

84a47e20aedd16ba86feb25848732338ad618b16Brian Wellington query->tsigkey = NULL;

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews ISC_LINK_INIT(query, link);

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews query->magic = QUERY_MAGIC;

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews

8b61d2012063306528286680bd9f086fa868d86eMark Andrews if ((query->options & DNS_FETCHOPT_TCP) != 0) {

8b61d2012063306528286680bd9f086fa868d86eMark Andrews /*

1f1d36a87b65186d9f89aac7f456ab1fd2a39ef6Andreas Gustafsson result = isc_socket_connect(query->tcpsocket,

1f1d36a87b65186d9f89aac7f456ab1fd2a39ef6Andreas Gustafsson &addrinfo->sockaddr, task,

1f1d36a87b65186d9f89aac7f456ab1fd2a39ef6Andreas Gustafsson resquery_connected, query);

6850cdd4497424c9d42ade487edfde9fb9a47de9Brian Wellington if (result != ISC_R_SUCCESS)

84a47e20aedd16ba86feb25848732338ad618b16Brian Wellington goto cleanup_socket;

84a47e20aedd16ba86feb25848732338ad618b16Brian Wellington query->connects++;

84a47e20aedd16ba86feb25848732338ad618b16Brian Wellington QTRACE("connecting via TCP");

2483a850e8b82230331defb0e22c67f6b46cfb38Brian Wellington } else {

84a47e20aedd16ba86feb25848732338ad618b16Brian Wellington result = resquery_send(query);

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews if (result != ISC_R_SUCCESS)

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews goto cleanup_dispatch;

7ed73313b1c129c7134d7d33beb82c85bd6d1df4Mark Andrews }

7ed73313b1c129c7134d7d33beb82c85bd6d1df4Mark Andrews

7ed73313b1c129c7134d7d33beb82c85bd6d1df4Mark Andrews ISC_LIST_APPEND(fctx->queries, query, link);

7ed73313b1c129c7134d7d33beb82c85bd6d1df4Mark Andrews

7ed73313b1c129c7134d7d33beb82c85bd6d1df4Mark Andrews return (ISC_R_SUCCESS);

7ed73313b1c129c7134d7d33beb82c85bd6d1df4Mark Andrews

7ed73313b1c129c7134d7d33beb82c85bd6d1df4Mark Andrews cleanup_socket:

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews isc_socket_detach(&query->tcpsocket);

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews cleanup_dispatch:

40f53fa8d9c6a4fc38c0014495e7a42b08f52481David Lawrence if (query->dispatch != NULL)

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews dns_dispatch_detach(&query->dispatch);

a5c30de2601a1d130a15a78cf3dc7610a02b2d85Mark Andrews

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews cleanup_query:

8b61d2012063306528286680bd9f086fa868d86eMark Andrews query->magic = 0;

8b61d2012063306528286680bd9f086fa868d86eMark Andrews isc_mem_put(res->buckets[fctx->bucketnum].mctx,

8b61d2012063306528286680bd9f086fa868d86eMark Andrews query, sizeof(*query));

9cb39bbe40998ee14df86609da806441b9e144ceAndreas Gustafsson

440164d3e36353a4b9801fcc05fe66b6cf1fb8ceMark Andrews stop_idle_timer:

9cb39bbe40998ee14df86609da806441b9e144ceAndreas Gustafsson RUNTIME_CHECK(fctx_stopidletimer(fctx) == ISC_R_SUCCESS);

0ad8ee89c532951a55b7de25317eeca2c3b2ed63Andreas Gustafsson

046a9aca49bdc25bd57d75fd0dd34c021722f095Mark Andrews return (result);

440164d3e36353a4b9801fcc05fe66b6cf1fb8ceMark Andrews}

9cb39bbe40998ee14df86609da806441b9e144ceAndreas Gustafsson

440164d3e36353a4b9801fcc05fe66b6cf1fb8ceMark Andrewsstatic isc_boolean_t

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafssontriededns(fetchctx_t *fctx, isc_sockaddr_t *address) {

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson isc_sockaddr_t *sa;

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson for (sa = ISC_LIST_HEAD(fctx->edns);

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson sa != NULL;

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson sa = ISC_LIST_NEXT(sa, link)) {

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson if (isc_sockaddr_equal(sa, address))

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson return (ISC_TRUE);

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson }

0ad8ee89c532951a55b7de25317eeca2c3b2ed63Andreas Gustafsson

440164d3e36353a4b9801fcc05fe66b6cf1fb8ceMark Andrews return (ISC_FALSE);

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews}

b54630c4518a1a173fee3478f4bf51dff450b6dcMark Andrews

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrewsstatic void

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrewsadd_triededns(fetchctx_t *fctx, isc_sockaddr_t *address) {

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews isc_sockaddr_t *sa;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews if (triededns(fctx, address))

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews return;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews sa = isc_mem_get(fctx->res->buckets[fctx->bucketnum].mctx,

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews sizeof(*sa));

e44487bfc23599b6b240e09d83d1c862fecfcc82Michael Graff if (sa == NULL)

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews return;

2c12768b4306035c208afc92bace4f3501f051f7Michael Sawyer

390b2077fc751105e40174ceaa1ce34ef06e7dd4Mark Andrews *sa = *address;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews ISC_LIST_INITANDAPPEND(fctx->edns, sa, link);

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews}

8b61d2012063306528286680bd9f086fa868d86eMark Andrews

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrewsstatic isc_boolean_t

f53848e17123569387b279578f0100dca5407da5Mark Andrewstriededns512(fetchctx_t *fctx, isc_sockaddr_t *address) {

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews isc_sockaddr_t *sa;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews for (sa = ISC_LIST_HEAD(fctx->edns512);

0ad8ee89c532951a55b7de25317eeca2c3b2ed63Andreas Gustafsson sa != NULL;

0ad8ee89c532951a55b7de25317eeca2c3b2ed63Andreas Gustafsson sa = ISC_LIST_NEXT(sa, link)) {

0ad8ee89c532951a55b7de25317eeca2c3b2ed63Andreas Gustafsson if (isc_sockaddr_equal(sa, address))

0ad8ee89c532951a55b7de25317eeca2c3b2ed63Andreas Gustafsson return (ISC_TRUE);

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson }

0ad8ee89c532951a55b7de25317eeca2c3b2ed63Andreas Gustafsson

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson return (ISC_FALSE);

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews}

559bb1016f1b00a3661cb2790dc837a977057b86Mark Andrews

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrewsstatic void

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrewsadd_triededns512(fetchctx_t *fctx, isc_sockaddr_t *address) {

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews isc_sockaddr_t *sa;

40f53fa8d9c6a4fc38c0014495e7a42b08f52481David Lawrence

84d982f168ca104186490a93190c8e28d333026dMark Andrews if (triededns512(fctx, address))

f53848e17123569387b279578f0100dca5407da5Mark Andrews return;

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson

f53848e17123569387b279578f0100dca5407da5Mark Andrews sa = isc_mem_get(fctx->res->buckets[fctx->bucketnum].mctx,

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews sizeof(*sa));

f53848e17123569387b279578f0100dca5407da5Mark Andrews if (sa == NULL)

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews return;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews *sa = *address;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews ISC_LIST_INITANDAPPEND(fctx->edns512, sa, link);

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews}

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews

e44487bfc23599b6b240e09d83d1c862fecfcc82Michael Graffstatic isc_result_t

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrewsresquery_send(resquery_t *query) {

e44487bfc23599b6b240e09d83d1c862fecfcc82Michael Graff fetchctx_t *fctx;

390b2077fc751105e40174ceaa1ce34ef06e7dd4Mark Andrews isc_result_t result;

046a9aca49bdc25bd57d75fd0dd34c021722f095Mark Andrews dns_name_t *qname = NULL;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews dns_rdataset_t *qrdataset = NULL;

8b61d2012063306528286680bd9f086fa868d86eMark Andrews isc_region_t r;

8b61d2012063306528286680bd9f086fa868d86eMark Andrews dns_resolver_t *res;

e02884167b7c969b56413f76c48c3802c4dca14dAndreas Gustafsson isc_task_t *task;

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews isc_socket_t *socket;

046a9aca49bdc25bd57d75fd0dd34c021722f095Mark Andrews isc_buffer_t tcpbuffer;

046a9aca49bdc25bd57d75fd0dd34c021722f095Mark Andrews isc_sockaddr_t *address;

046a9aca49bdc25bd57d75fd0dd34c021722f095Mark Andrews isc_buffer_t *buffer;

046a9aca49bdc25bd57d75fd0dd34c021722f095Mark Andrews isc_netaddr_t ipaddr;

046a9aca49bdc25bd57d75fd0dd34c021722f095Mark Andrews dns_tsigkey_t *tsigkey = NULL;

046a9aca49bdc25bd57d75fd0dd34c021722f095Mark Andrews dns_peer_t *peer = NULL;

046a9aca49bdc25bd57d75fd0dd34c021722f095Mark Andrews isc_boolean_t useedns;

046a9aca49bdc25bd57d75fd0dd34c021722f095Mark Andrews dns_compress_t cctx;

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson isc_boolean_t cleanup_cctx = ISC_FALSE;

046a9aca49bdc25bd57d75fd0dd34c021722f095Mark Andrews isc_boolean_t secure_domain;

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson

046a9aca49bdc25bd57d75fd0dd34c021722f095Mark Andrews fctx = query->fctx;

046a9aca49bdc25bd57d75fd0dd34c021722f095Mark Andrews QTRACE("send");

8126e45e8cc3fd54517c034dd30a42928f5206e3Andreas Gustafsson

046a9aca49bdc25bd57d75fd0dd34c021722f095Mark Andrews res = fctx->res;

046a9aca49bdc25bd57d75fd0dd34c021722f095Mark Andrews task = res->buckets[fctx->bucketnum].task;

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews address = NULL;

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews if ((query->options & DNS_FETCHOPT_TCP) != 0) {

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews /*

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews isc_buffer_init(&tcpbuffer, query->data, sizeof(query->data));

e44487bfc23599b6b240e09d83d1c862fecfcc82Michael Graff isc_buffer_init(&query->buffer, query->data + 2,

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews sizeof(query->data) - 2);

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews buffer = &tcpbuffer;

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews } else {

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews isc_buffer_init(&query->buffer, query->data,

e44487bfc23599b6b240e09d83d1c862fecfcc82Michael Graff sizeof(query->data));

34ee961fa2f0f5f2ee3cff40fdb4d7d7b48b7728Mark Andrews buffer = &query->buffer;

78da321b437bbb690ef570ccf17dcc8583a5a4a0Mark Andrews }

40f53fa8d9c6a4fc38c0014495e7a42b08f52481David Lawrence

8b61d2012063306528286680bd9f086fa868d86eMark Andrews result = dns_message_gettempname(fctx->qmessage, &qname);