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Diffstat (limited to 'external/unbound/testcode/testpkts.h')
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| -rw-r--r-- | external/unbound/testcode/testpkts.h | 290 |
2 files changed, 0 insertions, 290 deletions
diff --git a/external/unbound b/external/unbound new file mode 160000 +Subproject 193bdc4ee3fe2b0d17e547e86512528c2614483 diff --git a/external/unbound/testcode/testpkts.h b/external/unbound/testcode/testpkts.h deleted file mode 100644 index b175cab06..000000000 --- a/external/unbound/testcode/testpkts.h +++ /dev/null @@ -1,290 +0,0 @@ -/* - * testpkts. Data file parse for test packets, and query matching. - * - * Data storage for specially crafted replies for testing purposes. - * - * (c) NLnet Labs, 2005, 2006, 2007 - * See the file LICENSE for the license - */ - -#ifndef TESTPKTS_H -#define TESTPKTS_H -struct sldns_buffer; -struct sldns_file_parse_state; - -/** - * \file - * - * This is a debugging aid. It is not efficient, especially - * with a long config file, but it can give any reply to any query. - * This can help the developer pre-script replies for queries. - * - * You can specify a packet RR by RR with header flags to return. - * - * Missing features: - * - matching content different from reply content. - * - find way to adjust mangled packets? - * - */ - - /* - The data file format is as follows: - - ; comment. - ; a number of entries, these are processed first to last. - ; a line based format. - - $ORIGIN origin - $TTL default_ttl - - ENTRY_BEGIN - ; first give MATCH lines, that say what queries are matched - ; by this entry. - ; 'opcode' makes the query match the opcode from the reply - ; if you leave it out, any opcode matches this entry. - ; 'qtype' makes the query match the qtype from the reply - ; 'qname' makes the query match the qname from the reply - ; 'subdomain' makes the query match subdomains of qname from the reply - ; 'serial=1023' makes the query match if ixfr serial is 1023. - ; 'all' has to match header byte for byte and all rrs in packet. - ; 'ttl' used with all, rrs in packet must also have matching TTLs. - ; 'DO' will match only queries with DO bit set. - ; 'noedns' matches queries without EDNS OPT records. - ; 'rcode' makes the query match the rcode from the reply - ; 'question' makes the query match the question section - ; 'answer' makes the query match the answer section - ; 'ednsdata' matches queries to HEX_EDNS section. - MATCH [opcode] [qtype] [qname] [serial=<value>] [all] [ttl] - MATCH [UDP|TCP] DO - MATCH ... - ; Then the REPLY header is specified. - REPLY opcode, rcode or flags. - (opcode) QUERY IQUERY STATUS NOTIFY UPDATE - (rcode) NOERROR FORMERR SERVFAIL NXDOMAIN NOTIMPL YXDOMAIN - YXRRSET NXRRSET NOTAUTH NOTZONE - (flags) QR AA TC RD CD RA AD DO - REPLY ... - ; any additional actions to do. - ; 'copy_id' copies the ID from the query to the answer. - ADJUST copy_id - ; 'copy_query' copies the query name, type and class to the answer. - ADJUST copy_query - ; 'sleep=10' sleeps for 10 seconds before giving the answer (TCP is open) - ADJUST [sleep=<num>] ; sleep before giving any reply - ADJUST [packet_sleep=<num>] ; sleep before this packet in sequence - SECTION QUESTION - <RRs, one per line> ; the RRcount is determined automatically. - SECTION ANSWER - <RRs, one per line> - SECTION AUTHORITY - <RRs, one per line> - SECTION ADDITIONAL - <RRs, one per line> - EXTRA_PACKET ; follow with SECTION, REPLY for more packets. - HEX_ANSWER_BEGIN ; follow with hex data - ; this replaces any answer packet constructed - ; with the SECTION keywords (only SECTION QUERY - ; is used to match queries). If the data cannot - ; be parsed, ADJUST rules for the answer packet - ; are ignored. Only copy_id is done. - HEX_ANSWER_END - HEX_EDNS_BEGIN ; follow with hex data. - ; Raw EDNS data to match against. It must be an - ; exact match (all options are matched) and will be - ; evaluated only when 'MATCH ednsdata' given. - HEX_EDNS_END - ENTRY_END - - - Example data file: -$ORIGIN nlnetlabs.nl -$TTL 3600 - -ENTRY_BEGIN -MATCH qname -REPLY NOERROR -ADJUST copy_id -SECTION QUESTION -www.nlnetlabs.nl. IN A -SECTION ANSWER -www.nlnetlabs.nl. IN A 195.169.215.155 -SECTION AUTHORITY -nlnetlabs.nl. IN NS www.nlnetlabs.nl. -ENTRY_END - -ENTRY_BEGIN -MATCH qname -REPLY NOERROR -ADJUST copy_id -SECTION QUESTION -www2.nlnetlabs.nl. IN A -HEX_ANSWER_BEGIN -; 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 -;-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- - 00 bf 81 80 00 01 00 01 00 02 00 02 03 77 77 77 0b 6b 61 6e ; 1- 20 - 61 72 69 65 70 69 65 74 03 63 6f 6d 00 00 01 00 01 03 77 77 ; 21- 40 - 77 0b 6b 61 6e 61 72 69 65 70 69 65 74 03 63 6f 6d 00 00 01 ; 41- 60 - 00 01 00 01 50 8b 00 04 52 5e ed 32 0b 6b 61 6e 61 72 69 65 ; 61- 80 - 70 69 65 74 03 63 6f 6d 00 00 02 00 01 00 01 50 8b 00 11 03 ; 81- 100 - 6e 73 31 08 68 65 78 6f 6e 2d 69 73 02 6e 6c 00 0b 6b 61 6e ; 101- 120 - 61 72 69 65 70 69 65 74 03 63 6f 6d 00 00 02 00 01 00 01 50 ; 121- 140 - 8b 00 11 03 6e 73 32 08 68 65 78 6f 6e 2d 69 73 02 6e 6c 00 ; 141- 160 - 03 6e 73 31 08 68 65 78 6f 6e 2d 69 73 02 6e 6c 00 00 01 00 ; 161- 180 - 01 00 00 46 53 00 04 52 5e ed 02 03 6e 73 32 08 68 65 78 6f ; 181- 200 - 6e 2d 69 73 02 6e 6c 00 00 01 00 01 00 00 46 53 00 04 d4 cc ; 201- 220 - db 5b -HEX_ANSWER_END -ENTRY_END - - - - note that this file will link with your - void verbose(int level, char* format, ...); output function. -*/ - -/** Type of transport, since some entries match based on UDP or TCP of query */ -enum transport_type {transport_any = 0, transport_udp, transport_tcp }; - -/** struct to keep a linked list of reply packets for a query */ -struct reply_packet { - /** next in list of reply packets, for TCP multiple pkts on wire */ - struct reply_packet* next; - /** the reply pkt */ - uint8_t* reply_pkt; - /** length of reply pkt */ - size_t reply_len; - /** Additional EDNS data for matching queries. */ - struct sldns_buffer* raw_ednsdata; - /** or reply pkt in hex if not parsable */ - struct sldns_buffer* reply_from_hex; - /** seconds to sleep before giving packet */ - unsigned int packet_sleep; -}; - -/** data structure to keep the canned queries in. - format is the 'matching query' and the 'canned answer' */ -struct entry { - /* match */ - /* How to match an incoming query with this canned reply */ - /** match query opcode with answer opcode */ - uint8_t match_opcode; - /** match qtype with answer qtype */ - uint8_t match_qtype; - /** match qname with answer qname */ - uint8_t match_qname; - /** match rcode with answer rcode */ - uint8_t match_rcode; - /** match question section */ - uint8_t match_question; - /** match answer section */ - uint8_t match_answer; - /** match qname as subdomain of answer qname */ - uint8_t match_subdomain; - /** match SOA serial number, from auth section */ - uint8_t match_serial; - /** match all of the packet */ - uint8_t match_all; - /** match ttls in the packet */ - uint8_t match_ttl; - /** match DO bit */ - uint8_t match_do; - /** match absence of EDNS OPT record in query */ - uint8_t match_noedns; - /** match edns data field given in hex */ - uint8_t match_ednsdata_raw; - /** match query serial with this value. */ - uint32_t ixfr_soa_serial; - /** match on UDP/TCP */ - enum transport_type match_transport; - - /** pre canned reply */ - struct reply_packet *reply_list; - - /** how to adjust the reply packet */ - /** copy over the ID from the query into the answer */ - uint8_t copy_id; - /** copy the query nametypeclass from query into the answer */ - uint8_t copy_query; - /** copy ednsdata to reply, assume it is clientsubnet and - * adjust scopemask to match sourcemask */ - uint8_t copy_ednsdata_assume_clientsubnet; - /** in seconds */ - unsigned int sleeptime; - - /** some number that names this entry, line number in file or so */ - int lineno; - - /** next in list */ - struct entry* next; -}; - -/** - * reads the canned reply file and returns a list of structs - * does an exit on error. - * @param name: name of the file to read. - * @param skip_whitespace: skip leftside whitespace. - */ -struct entry* read_datafile(const char* name, int skip_whitespace); - -/** - * Delete linked list of entries. - */ -void delete_entry(struct entry* list); - -/** - * Read one entry from the data file. - * @param in: file to read from. Filepos must be at the start of a new line. - * @param name: name of the file for prettier errors. - * @param pstate: file parse state with lineno, default_ttl, - * origin and prev_rr name. - * @param skip_whitespace: skip leftside whitespace. - * @return: The entry read (malloced) or NULL if no entry could be read. - */ -struct entry* read_entry(FILE* in, const char* name, - struct sldns_file_parse_state* pstate, int skip_whitespace); - -/** - * finds entry in list, or returns NULL. - */ -struct entry* find_match(struct entry* entries, uint8_t* query_pkt, - size_t query_pkt_len, enum transport_type transport); - -/** - * match two packets, all must match - * @param q: packet 1 - * @param qlen: length of q. - * @param p: packet 2 - * @param plen: length of p. - * @param mttl: if true, ttls must match, if false, ttls do not need to match - * @param noloc: if true, rrs may be reordered in their packet-section. - * rrs are then matches without location of the rr being important. - * @return true if matched. - */ -int match_all(uint8_t* q, size_t qlen, uint8_t* p, size_t plen, int mttl, - int noloc); - -/** - * copy & adjust packet, mallocs a copy. - */ -void adjust_packet(struct entry* match, uint8_t** answer_pkt, - size_t* answer_pkt_len, uint8_t* query_pkt, size_t query_pkt_len); - -/** - * Parses data buffer to a query, finds the correct answer - * and calls the given function for every packet to send. - * if verbose_out filename is given, packets are dumped there. - * @param inbuf: the packet that came in - * @param inlen: length of packet. - * @param entries: entries read in from datafile. - * @param count: is increased to count number of queries answered. - * @param transport: set to UDP or TCP to match some types of entries. - * @param sendfunc: called to send answer (buffer, size, userarg). - * @param userdata: userarg to give to sendfunc. - * @param verbose_out: if not NULL, verbose messages are printed there. - */ -void handle_query(uint8_t* inbuf, ssize_t inlen, struct entry* entries, - int* count, enum transport_type transport, - void (*sendfunc)(uint8_t*, size_t, void*), void* userdata, - FILE* verbose_out); - -#endif /* TESTPKTS_H */ |