diff options
Diffstat (limited to 'lib/dns/result.c')
| -rw-r--r-- | lib/dns/result.c | 277 |
1 files changed, 277 insertions, 0 deletions
diff --git a/lib/dns/result.c b/lib/dns/result.c new file mode 100644 index 0000000..54c70e0 --- /dev/null +++ b/lib/dns/result.c @@ -0,0 +1,277 @@ +/* + * Copyright (C) 2004, 2005, 2007, 2008 Internet Systems Consortium, Inc. ("ISC") + * Copyright (C) 1998-2003 Internet Software Consortium. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH + * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, + * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM + * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE + * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + * PERFORMANCE OF THIS SOFTWARE. + */ + +/* $Id: result.c,v 1.125 2008/09/25 04:02:38 tbox Exp $ */ + +/*! \file */ + +#include <config.h> + +#include <isc/once.h> +#include <isc/util.h> + +#include <dns/result.h> +#include <dns/lib.h> + +static const char *text[DNS_R_NRESULTS] = { + "label too long", /*%< 0 DNS_R_LABELTOOLONG */ + "bad escape", /*%< 1 DNS_R_BADESCAPE */ + /*! + * Note that DNS_R_BADBITSTRING and DNS_R_BITSTRINGTOOLONG are + * deprecated. + */ + "bad bitstring", /*%< 2 DNS_R_BADBITSTRING */ + "bitstring too long", /*%< 3 DNS_R_BITSTRINGTOOLONG */ + "empty label", /*%< 4 DNS_R_EMPTYLABEL */ + + "bad dotted quad", /*%< 5 DNS_R_BADDOTTEDQUAD */ + "invalid NS owner name (wildcard)", /*%< 6 DNS_R_INVALIDNS */ + "unknown class/type", /*%< 7 DNS_R_UNKNOWN */ + "bad label type", /*%< 8 DNS_R_BADLABELTYPE */ + "bad compression pointer", /*%< 9 DNS_R_BADPOINTER */ + + "too many hops", /*%< 10 DNS_R_TOOMANYHOPS */ + "disallowed (by application policy)", /*%< 11 DNS_R_DISALLOWED */ + "extra input text", /*%< 12 DNS_R_EXTRATOKEN */ + "extra input data", /*%< 13 DNS_R_EXTRADATA */ + "text too long", /*%< 14 DNS_R_TEXTTOOLONG */ + + "not at top of zone", /*%< 15 DNS_R_NOTZONETOP */ + "syntax error", /*%< 16 DNS_R_SYNTAX */ + "bad checksum", /*%< 17 DNS_R_BADCKSUM */ + "bad IPv6 address", /*%< 18 DNS_R_BADAAAA */ + "no owner", /*%< 19 DNS_R_NOOWNER */ + + "no ttl", /*%< 20 DNS_R_NOTTL */ + "bad class", /*%< 21 DNS_R_BADCLASS */ + "name too long", /*%< 22 DNS_R_NAMETOOLONG */ + "partial match", /*%< 23 DNS_R_PARTIALMATCH */ + "new origin", /*%< 24 DNS_R_NEWORIGIN */ + + "unchanged", /*%< 25 DNS_R_UNCHANGED */ + "bad ttl", /*%< 26 DNS_R_BADTTL */ + "more data needed/to be rendered", /*%< 27 DNS_R_NOREDATA */ + "continue", /*%< 28 DNS_R_CONTINUE */ + "delegation", /*%< 29 DNS_R_DELEGATION */ + + "glue", /*%< 30 DNS_R_GLUE */ + "dname", /*%< 31 DNS_R_DNAME */ + "cname", /*%< 32 DNS_R_CNAME */ + "bad database", /*%< 33 DNS_R_BADDB */ + "zonecut", /*%< 34 DNS_R_ZONECUT */ + + "bad zone", /*%< 35 DNS_R_BADZONE */ + "more data", /*%< 36 DNS_R_MOREDATA */ + "up to date", /*%< 37 DNS_R_UPTODATE */ + "tsig verify failure", /*%< 38 DNS_R_TSIGVERIFYFAILURE */ + "tsig indicates error", /*%< 39 DNS_R_TSIGERRORSET */ + + "RRSIG failed to verify", /*%< 40 DNS_R_SIGINVALID */ + "RRSIG has expired", /*%< 41 DNS_R_SIGEXPIRED */ + "RRSIG validity period has not begun", /*%< 42 DNS_R_SIGFUTURE */ + "key is unauthorized to sign data", /*%< 43 DNS_R_KEYUNAUTHORIZED */ + "invalid time", /*%< 44 DNS_R_INVALIDTIME */ + + "expected a TSIG or SIG(0)", /*%< 45 DNS_R_EXPECTEDTSIG */ + "did not expect a TSIG or SIG(0)", /*%< 46 DNS_R_UNEXPECTEDTSIG */ + "TKEY is unacceptable", /*%< 47 DNS_R_INVALIDTKEY */ + "hint", /*%< 48 DNS_R_HINT */ + "drop", /*%< 49 DNS_R_DROP */ + + "zone not loaded", /*%< 50 DNS_R_NOTLOADED */ + "ncache nxdomain", /*%< 51 DNS_R_NCACHENXDOMAIN */ + "ncache nxrrset", /*%< 52 DNS_R_NCACHENXRRSET */ + "wait", /*%< 53 DNS_R_WAIT */ + "not verified yet", /*%< 54 DNS_R_NOTVERIFIEDYET */ + + "no identity", /*%< 55 DNS_R_NOIDENTITY */ + "no journal", /*%< 56 DNS_R_NOJOURNAL */ + "alias", /*%< 57 DNS_R_ALIAS */ + "use TCP", /*%< 58 DNS_R_USETCP */ + "no valid RRSIG", /*%< 59 DNS_R_NOVALIDSIG */ + + "no valid NSEC", /*%< 60 DNS_R_NOVALIDNSEC */ + "not insecure", /*%< 61 DNS_R_NOTINSECURE */ + "unknown service", /*%< 62 DNS_R_UNKNOWNSERVICE */ + "recoverable error occurred", /*%< 63 DNS_R_RECOVERABLE */ + "unknown opt attribute record", /*%< 64 DNS_R_UNKNOWNOPT */ + + "unexpected message id", /*%< 65 DNS_R_UNEXPECTEDID */ + "seen include file", /*%< 66 DNS_R_SEENINCLUDE */ + "not exact", /*%< 67 DNS_R_NOTEXACT */ + "address blackholed", /*%< 68 DNS_R_BLACKHOLED */ + "bad algorithm", /*%< 69 DNS_R_BADALG */ + + "invalid use of a meta type", /*%< 70 DNS_R_METATYPE */ + "CNAME and other data", /*%< 71 DNS_R_CNAMEANDOTHER */ + "multiple RRs of singleton type", /*%< 72 DNS_R_SINGLETON */ + "hint nxrrset", /*%< 73 DNS_R_HINTNXRRSET */ + "no master file configured", /*%< 74 DNS_R_NOMASTERFILE */ + + "unknown protocol", /*%< 75 DNS_R_UNKNOWNPROTO */ + "clocks are unsynchronized", /*%< 76 DNS_R_CLOCKSKEW */ + "IXFR failed", /*%< 77 DNS_R_BADIXFR */ + "not authoritative", /*%< 78 DNS_R_NOTAUTHORITATIVE */ + "no valid KEY", /*%< 79 DNS_R_NOVALIDKEY */ + + "obsolete", /*%< 80 DNS_R_OBSOLETE */ + "already frozen", /*%< 81 DNS_R_FROZEN */ + "unknown flag", /*%< 82 DNS_R_UNKNOWNFLAG */ + "expected a response", /*%< 83 DNS_R_EXPECTEDRESPONSE */ + "no valid DS", /*%< 84 DNS_R_NOVALIDDS */ + + "NS is an address", /*%< 85 DNS_R_NSISADDRESS */ + "received FORMERR", /*%< 86 DNS_R_REMOTEFORMERR */ + "truncated TCP response", /*%< 87 DNS_R_TRUNCATEDTCP */ + "lame server detected", /*%< 88 DNS_R_LAME */ + "unexpected RCODE", /*%< 89 DNS_R_UNEXPECTEDRCODE */ + + "unexpected OPCODE", /*%< 90 DNS_R_UNEXPECTEDOPCODE */ + "chase DS servers", /*%< 91 DNS_R_CHASEDSSERVERS */ + "empty name", /*%< 92 DNS_R_EMPTYNAME */ + "empty wild", /*%< 93 DNS_R_EMPTYWILD */ + "bad bitmap", /*%< 94 DNS_R_BADBITMAP */ + + "from wildcard", /*%< 95 DNS_R_FROMWILDCARD */ + "bad owner name (check-names)", /*%< 96 DNS_R_BADOWNERNAME */ + "bad name (check-names)", /*%< 97 DNS_R_BADNAME */ + "dynamic zone", /*%< 98 DNS_R_DYNAMIC */ + "unknown command", /*%< 99 DNS_R_UNKNOWNCOMMAND */ + + "must-be-secure", /*%< 100 DNS_R_MUSTBESECURE */ + "covering NSEC record returned", /*%< 101 DNS_R_COVERINGNSEC */ + "MX is an address", /*%< 102 DNS_R_MXISADDRESS */ + "duplicate query", /*%< 103 DNS_R_DUPLICATE */ + "invalid NSEC3 owner name (wildcard)", /*%< 104 DNS_R_INVALIDNSEC3 */ +}; + +static const char *rcode_text[DNS_R_NRCODERESULTS] = { + "NOERROR", /*%< 0 DNS_R_NOEROR */ + "FORMERR", /*%< 1 DNS_R_FORMERR */ + "SERVFAIL", /*%< 2 DNS_R_SERVFAIL */ + "NXDOMAIN", /*%< 3 DNS_R_NXDOMAIN */ + "NOTIMP", /*%< 4 DNS_R_NOTIMP */ + + "REFUSED", /*%< 5 DNS_R_REFUSED */ + "YXDOMAIN", /*%< 6 DNS_R_YXDOMAIN */ + "YXRRSET", /*%< 7 DNS_R_YXRRSET */ + "NXRRSET", /*%< 8 DNS_R_NXRRSET */ + "NOTAUTH", /*%< 9 DNS_R_NOTAUTH */ + + "NOTZONE", /*%< 10 DNS_R_NOTZONE */ + "<rcode 11>", /*%< 11 has no macro */ + "<rcode 12>", /*%< 12 has no macro */ + "<rcode 13>", /*%< 13 has no macro */ + "<rcode 14>", /*%< 14 has no macro */ + + "<rcode 15>", /*%< 15 has no macro */ + "BADVERS", /*%< 16 DNS_R_BADVERS */ +}; + +#define DNS_RESULT_RESULTSET 2 +#define DNS_RESULT_RCODERESULTSET 3 + +static isc_once_t once = ISC_ONCE_INIT; + +static void +initialize_action(void) { + isc_result_t result; + + result = isc_result_register(ISC_RESULTCLASS_DNS, DNS_R_NRESULTS, + text, dns_msgcat, DNS_RESULT_RESULTSET); + if (result == ISC_R_SUCCESS) + result = isc_result_register(ISC_RESULTCLASS_DNSRCODE, + DNS_R_NRCODERESULTS, + rcode_text, dns_msgcat, + DNS_RESULT_RCODERESULTSET); + if (result != ISC_R_SUCCESS) + UNEXPECTED_ERROR(__FILE__, __LINE__, + "isc_result_register() failed: %u", result); +} + +static void +initialize(void) { + dns_lib_initmsgcat(); + RUNTIME_CHECK(isc_once_do(&once, initialize_action) == ISC_R_SUCCESS); +} + +const char * +dns_result_totext(isc_result_t result) { + initialize(); + + return (isc_result_totext(result)); +} + +void +dns_result_register(void) { + initialize(); +} + +dns_rcode_t +dns_result_torcode(isc_result_t result) { + dns_rcode_t rcode = dns_rcode_servfail; + + if (DNS_RESULT_ISRCODE(result)) { + /* + * Rcodes can't be bigger than 12 bits, which is why we + * AND with 0xFFF instead of 0xFFFF. + */ + return ((dns_rcode_t)((result) & 0xFFF)); + } + /* + * Try to supply an appropriate rcode. + */ + switch (result) { + case ISC_R_SUCCESS: + rcode = dns_rcode_noerror; + break; + case ISC_R_BADBASE64: + case ISC_R_NOSPACE: + case ISC_R_RANGE: + case ISC_R_UNEXPECTEDEND: + case DNS_R_BADAAAA: + /* case DNS_R_BADBITSTRING: deprecated */ + case DNS_R_BADCKSUM: + case DNS_R_BADCLASS: + case DNS_R_BADLABELTYPE: + case DNS_R_BADPOINTER: + case DNS_R_BADTTL: + case DNS_R_BADZONE: + /* case DNS_R_BITSTRINGTOOLONG: deprecated */ + case DNS_R_EXTRADATA: + case DNS_R_LABELTOOLONG: + case DNS_R_NOREDATA: + case DNS_R_SYNTAX: + case DNS_R_TEXTTOOLONG: + case DNS_R_TOOMANYHOPS: + case DNS_R_TSIGERRORSET: + case DNS_R_UNKNOWN: + rcode = dns_rcode_formerr; + break; + case DNS_R_DISALLOWED: + rcode = dns_rcode_refused; + break; + case DNS_R_TSIGVERIFYFAILURE: + case DNS_R_CLOCKSKEW: + rcode = dns_rcode_notauth; + break; + default: + rcode = dns_rcode_servfail; + } + + return (rcode); +} |