From: Ted Lemon Date: Wed, 2 Feb 2000 05:49:29 +0000 (+0000) Subject: Include files used by private resolver. X-Git-Tag: V3-BETA-2-PATCH-1~363 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6e9a7784edfd00b0913d9c5a1597981c4c2a3219;p=thirdparty%2Fdhcp.git Include files used by private resolver. --- diff --git a/includes/minires/minires.h b/includes/minires/minires.h new file mode 100644 index 000000000..79588ad9a --- /dev/null +++ b/includes/minires/minires.h @@ -0,0 +1,137 @@ +/* + * Copyright (c) 2000 by Internet Software Consortium. + * + * Permission to use, copy, modify, and 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 INTERNET SOFTWARE CONSORTIUM DISCLAIMS + * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE + * CONSORTIUM 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. + */ + +#include "cdefs.h" +#include "osdep.h" + +#include "minires/resolv.h" +#include "minires/res_update.h" + +/* + * Based on the Dynamic DNS reference implementation by Viraj Bais + * + */ + +extern const struct res_sym __p_type_syms[]; +extern time_t cur_time; + +int dn_comp (const char *, + unsigned char *, unsigned, unsigned char **, unsigned char **); +int loc_aton (const char *, u_char *); +int sym_ston (const struct res_sym *, const char *, int *); +void res_buildservicelist (void); +void res_destroyservicelist (void); +void res_buildprotolist(void); +void res_destroyprotolist(void); +int res_servicenumber(const char *); +int res_protocolnumber(const char *); +const char *res_protocolname(int); +const char *res_servicename(u_int16_t, const char *); +u_int32_t ns_datetosecs __P((const char *cp, int *errp)); +int b64_pton (char const *, unsigned char *, size_t); +int res_ninit (res_state); +unsigned int res_randomid (void); +int res_findzonecut (res_state, const char *, ns_class, int, + char *, size_t, struct in_addr *, int); +int res_nsend (res_state, + unsigned char *, unsigned, unsigned char *, unsigned); +int res_nsendsigned (res_state, unsigned char *, + unsigned, ns_tsig_key *, unsigned char *, unsigned); +int ns_samename (const char *, const char *); +int res_nameinquery (const char *, int, int, + const unsigned char *, const unsigned char *); +int res_queriesmatch (const unsigned char *, const unsigned char *, + const unsigned char *, const unsigned char *); +int dn_expand (const unsigned char *, + const unsigned char *, const unsigned char *, char *, unsigned); +unsigned int ns_get16 (const unsigned char *); +void res_close (void); +void res_nclose (res_state); +int res_ourserver_p (const res_state, const struct sockaddr_in *); +int ns_sign (unsigned char *, unsigned *, + unsigned, int, void *, const unsigned char *, + unsigned, unsigned char *, unsigned *, time_t); +const char *p_class (int); +const char *p_section (int section, int opcode); +int ns_makecanon (const char *, char *, size_t); +int ns_parserr (ns_msg *, ns_sect, int, ns_rr *); +int ns_samedomain (const char *, const char *); +int ns_name_uncompress __P((const u_char *, const u_char *, + const u_char *, char *, size_t)); +int res_nmkquery (res_state, int, + const char *, ns_class, ns_type, const unsigned char *, + unsigned, const unsigned char *, unsigned char *, unsigned); +int ns_initparse (const unsigned char *, unsigned, ns_msg *); +int res_nquery(res_state, const char *, + ns_class, ns_type, unsigned char *, unsigned anslen); +int res_nsearch(res_state, const char *, + ns_class, ns_type, unsigned char *, unsigned); +const char *res_hostalias (const res_state, const char *, char *, size_t); +int res_nquerydomain(res_state, const char *, const char *, + ns_class class, ns_class type, unsigned char *, unsigned); + +int res_mkupdate (ns_updrec *, unsigned char *, unsigned); +int res_update (ns_updrec *); +ns_updrec *res_mkupdrec (int, const char *, unsigned int, + unsigned int, unsigned long); +void res_freeupdrec (ns_updrec *); +int res_nmkupdate (res_state, ns_updrec *, unsigned char *, unsigned); +int res_nupdate (res_state, ns_updrec *, ns_tsig_key *); +int ns_skiprr(const unsigned char *, const unsigned char *, ns_sect, int); +int dn_skipname (const unsigned char *, const unsigned char *); +u_int32_t getULong (const unsigned char *); +int32_t getLong (const unsigned char *); +u_int32_t getUShort (const unsigned char *); +int32_t getShort (const unsigned char *); +u_int32_t getUChar (const unsigned char *); +void putULong (unsigned char *, u_int32_t); +void putLong (unsigned char *, int32_t); +void putUShort (unsigned char *, u_int32_t); +void putShort (unsigned char *, int32_t); +void putUChar (unsigned char *, u_int32_t); +int ns_name_ntol (const unsigned char *, unsigned char *, size_t); +int ns_sign_tcp_init (void *, + const unsigned char *, unsigned, ns_tcp_tsig_state *); +int ns_sign_tcp (unsigned char *, + unsigned *, unsigned, int, ns_tcp_tsig_state *, int); +int ns_name_ntop (const unsigned char *, char *, size_t); +int ns_name_pton (const char *, unsigned char *, size_t); +int ns_name_unpack (const unsigned char *, const unsigned char *, + const unsigned char *, unsigned char *, size_t); +int ns_name_pack (const unsigned char *, unsigned char *, + unsigned, const unsigned char **, const unsigned char **); +int ns_name_compress (const char *, unsigned char *, + size_t, const unsigned char **, const unsigned char **); +int ns_name_skip (const unsigned char **, const unsigned char *); +int ns_subdomain (const char *, const char *); +unsigned char *ns_find_tsig (unsigned char *, unsigned char *); +int ns_verify (unsigned char *, unsigned *, void *, const unsigned char *, + unsigned, unsigned char *, unsigned *, time_t *, int); +int ns_verify_tcp_init (void *, + const unsigned char *, unsigned, ns_tcp_tsig_state *); +int ns_verify_tcp (unsigned char *, unsigned *, ns_tcp_tsig_state *, int); +int b64_ntop (unsigned char const *, size_t, char *, size_t); + + + +#define DprintQ(a,b,c,d) +#define Dprint(a,b) +#define Perror(a, b, c, d) +#define Aerror(a, b, c, d, e) +#define DPRINTF(x) + +#define USE_MD5 diff --git a/includes/minires/res_update.h b/includes/minires/res_update.h new file mode 100644 index 000000000..476f6b5cf --- /dev/null +++ b/includes/minires/res_update.h @@ -0,0 +1,50 @@ +/* + * Copyright (c) 1999 by Internet Software Consortium, Inc. + * + * Permission to use, copy, modify, and 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 INTERNET SOFTWARE CONSORTIUM DISCLAIMS + * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE + * CONSORTIUM 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: res_update.h,v 1.1 2000/02/02 05:49:29 mellon Exp $ + */ + +#ifndef __RES_UPDATE_H +#define __RES_UPDATE_H + +#include +#include "arpa/nameser.h" +#include + +/* + * This RR-like structure is particular to UPDATE. + */ +typedef struct ns_updrec { + ISC_LINK(struct ns_updrec) r_link, r_glink; + ns_sect r_section; /* ZONE/PREREQUISITE/UPDATE */ + char *r_dname; /* owner of the RR */ + ns_class r_class; /* class number */ + ns_type r_type; /* type number */ + u_int32_t r_ttl; /* time to live */ + unsigned char* r_data; /* rdata fields as text string */ + unsigned int r_size; /* size of r_data field */ + int r_opcode; /* type of operation */ + /* following fields for private use by the resolver/server + routines */ + struct databuf *r_dp; /* databuf to process */ + struct databuf *r_deldp; /* databuf's deleted/overwritten */ + unsigned int r_zone; /* zone number on server */ +} ns_updrec; +typedef ISC_LIST(ns_updrec) ns_updque; + +#endif /*__RES_UPDATE_H*/ diff --git a/includes/minires/resolv.h b/includes/minires/resolv.h new file mode 100644 index 000000000..87b1d11b0 --- /dev/null +++ b/includes/minires/resolv.h @@ -0,0 +1,314 @@ +/* + * Copyright (c) 1983, 1987, 1989 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* + * Portions Copyright (c) 1996-1999 by Internet Software Consortium. + * + * Permission to use, copy, modify, and 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 INTERNET SOFTWARE CONSORTIUM DISCLAIMS + * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE + * CONSORTIUM 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. + */ + +/* + * @(#)resolv.h 8.1 (Berkeley) 6/2/93 + * $Id: resolv.h,v 1.1 2000/02/02 05:49:29 mellon Exp $ + */ + +#ifndef _RESOLV_H_ +#define _RESOLV_H_ + +/* + * This used to be defined in res_query.c, now it's in herror.c. + * [XXX no it's not. It's in irs/irs_data.c] + * It was + * never extern'd by any *.h file before it was placed here. For thread + * aware programs, the last h_errno value set is stored in res->h_errno. + * + * XXX: There doesn't seem to be a good reason for exposing RES_SET_H_ERRNO + * (and __h_errno_set) to the public via . + * XXX: __h_errno_set is really part of IRS, not part of the resolver. + * If somebody wants to build and use a resolver that doesn't use IRS, + * what do they do? Perhaps something like + * #ifdef WANT_IRS + * # define RES_SET_H_ERRNO(r,x) __h_errno_set(r,x) + * #else + * # define RES_SET_H_ERRNO(r,x) (h_errno = (r)->res_h_errno = (x)) + * #endif + */ + +#define RES_SET_H_ERRNO(r,x) __h_errno_set(r,x) +struct __res_state; /* forward */ +void __h_errno_set(struct __res_state *res, int err); + +/* + * Resolver configuration file. + * Normally not present, but may contain the address of the + * inital name server(s) to query and the domain search list. + */ + +#ifndef _PATH_RESCONF +#define _PATH_RESCONF "/etc/resolv.conf" +#endif + +typedef enum { res_goahead, res_nextns, res_modified, res_done, res_error } + res_sendhookact; + +typedef res_sendhookact (*res_send_qhook)__P((struct sockaddr_in * const *ns, + u_char **query, + unsigned *querylen, + u_char *ans, + unsigned anssiz, + int *resplen)); + +typedef res_sendhookact (*res_send_rhook)__P((const struct sockaddr_in *ns, + u_char *query, + unsigned querylen, + u_char *ans, + unsigned anssiz, + int *resplen)); + +struct res_sym { + int number; /* Identifying number, like T_MX */ + char * name; /* Its symbolic name, like "MX" */ + char * humanname; /* Its fun name, like "mail exchanger" */ +}; + +/* + * Global defines and variables for resolver stub. + */ +#define MAXNS 3 /* max # name servers we'll track */ +#define MAXDFLSRCH 3 /* # default domain levels to try */ +#define MAXDNSRCH 6 /* max # domains in search path */ +#define LOCALDOMAINPARTS 2 /* min levels in name that is "local" */ + +#define RES_TIMEOUT 5 /* min. seconds between retries */ +#define MAXRESOLVSORT 10 /* number of net to sort on */ +#define RES_MAXNDOTS 15 /* should reflect bit field size */ +#define RES_MAXRETRANS 30 /* only for resolv.conf/RES_OPTIONS */ +#define RES_MAXRETRY 5 /* only for resolv.conf/RES_OPTIONS */ +#define RES_DFLRETRY 2 /* Default #/tries. */ + +struct __res_state { + int retrans; /* retransmition time interval */ + int retry; /* number of times to retransmit */ + u_long options; /* option flags - see below. */ + int nscount; /* number of name servers */ + struct sockaddr_in + nsaddr_list[MAXNS]; /* address of name server */ +#define nsaddr nsaddr_list[0] /* for backward compatibility */ + u_short id; /* current message id */ + char *dnsrch[MAXDNSRCH+1]; /* components of domain to search */ + char defdname[256]; /* default domain (deprecated) */ + u_long pfcode; /* RES_PRF_ flags - see below. */ + unsigned ndots:4; /* threshold for initial abs. query */ + unsigned nsort:4; /* number of elements in sort_list[] */ + char unused[3]; + struct { + struct in_addr addr; + u_int32_t mask; + } sort_list[MAXRESOLVSORT]; + res_send_qhook qhook; /* query hook */ + res_send_rhook rhook; /* response hook */ + int res_h_errno; /* last one set for this context */ + int _sock; /* PRIVATE: for res_send i/o */ + u_int _flags; /* PRIVATE: see below */ + char pad[52]; /* On an i386 this means 512b total. */ +}; + +typedef struct __res_state *res_state; + +/* + * Resolver flags (used to be discrete per-module statics ints). + */ +#define RES_F_VC 0x00000001 /* socket is TCP */ +#define RES_F_CONN 0x00000002 /* socket is connected */ + +/* res_findzonecut() options */ +#define RES_EXHAUSTIVE 0x00000001 /* always do all queries */ + +/* + * Resolver options (keep these in synch with res_debug.c, please) + */ +#define RES_INIT 0x00000001 /* address initialized */ +#define RES_DEBUG 0x00000002 /* print debug messages */ +#define RES_AAONLY 0x00000004 /* authoritative answers only (!IMPL)*/ +#define RES_USEVC 0x00000008 /* use virtual circuit */ +#define RES_PRIMARY 0x00000010 /* query primary server only (!IMPL) */ +#define RES_IGNTC 0x00000020 /* ignore trucation errors */ +#define RES_RECURSE 0x00000040 /* recursion desired */ +#define RES_DEFNAMES 0x00000080 /* use default domain name */ +#define RES_STAYOPEN 0x00000100 /* Keep TCP socket open */ +#define RES_DNSRCH 0x00000200 /* search up local domain tree */ +#define RES_INSECURE1 0x00000400 /* type 1 security disabled */ +#define RES_INSECURE2 0x00000800 /* type 2 security disabled */ +#define RES_NOALIASES 0x00001000 /* shuts off HOSTALIASES feature */ +#define RES_USE_INET6 0x00002000 /* use/map IPv6 in gethostbyname() */ +#define RES_ROTATE 0x00004000 /* rotate ns list after each query */ +#define RES_NOCHECKNAME 0x00008000 /* do not check names for sanity. */ +#define RES_KEEPTSIG 0x00010000 /* do not strip TSIG records */ + +#define RES_DEFAULT (RES_RECURSE | RES_DEFNAMES | RES_DNSRCH) + +/* + * Resolver "pfcode" values. Used by dig. + */ +#define RES_PRF_STATS 0x00000001 +#define RES_PRF_UPDATE 0x00000002 +#define RES_PRF_CLASS 0x00000004 +#define RES_PRF_CMD 0x00000008 +#define RES_PRF_QUES 0x00000010 +#define RES_PRF_ANS 0x00000020 +#define RES_PRF_AUTH 0x00000040 +#define RES_PRF_ADD 0x00000080 +#define RES_PRF_HEAD1 0x00000100 +#define RES_PRF_HEAD2 0x00000200 +#define RES_PRF_TTLID 0x00000400 +#define RES_PRF_HEADX 0x00000800 +#define RES_PRF_QUERY 0x00001000 +#define RES_PRF_REPLY 0x00002000 +#define RES_PRF_INIT 0x00004000 +/* 0x00008000 */ + +#if 0 +/* Things involving an internal (static) resolver context. */ +#ifdef _REENTRANT +extern struct __res_state *__res_state(void); +#define _res (*__res_state()) +#else +#ifndef __BIND_NOSTATIC +extern struct __res_state _res; +#endif +#endif + +void fp_nquery (const u_char *, int, FILE *); +void fp_query (const u_char *, FILE *); +const char * hostalias (const char *); +void p_query (const u_char *); +void res_close (void); +int res_init (void); +int res_isourserver (const struct sockaddr_in *); +int res_mkquery (int, const char *, int, int, const u_char *, + int, const u_char *, u_char *, int); +int res_query (const char *, int, int, u_char *, int); +int res_querydomain (const char *, const char *, int, int, + u_char *, int); +int res_search (const char *, int, int, u_char *, int); +int res_send (const u_char *, int, u_char *, int); +int res_sendsigned (const u_char *, int, ns_tsig_key *, + u_char *, int); + +#if !defined(SHARED_LIBBIND) || defined(LIB) +/* + * If libbind is a shared object (well, DLL anyway) + * these externs break the linker when resolv.h is + * included by a lib client (like named) + * Make them go away if a client is including this + * + */ +extern const struct res_sym __p_key_syms[]; +extern const struct res_sym __p_cert_syms[]; +extern const struct res_sym __p_class_syms[]; +extern const struct res_sym __p_type_syms[]; +extern const struct res_sym __p_rcode_syms[]; +#endif /* SHARED_LIBBIND */ + +int res_hnok (const char *); +int res_ownok (const char *); +int res_mailok (const char *); +int res_dnok (const char *); +int sym_ston (const struct res_sym *, const char *, int *); +const char * sym_ntos (const struct res_sym *, int, int *); +const char * sym_ntop (const struct res_sym *, int, int *); +int b64_ntop (u_char const *, size_t, char *, size_t); +int b64_pton (char const *, u_char *, size_t); +int loc_aton (const char *ascii, u_char *binary); +const char * loc_ntoa (const u_char *binary, char *ascii); +int dn_skipname (const u_char *, const u_char *); +void putlong (u_int32_t, u_char *); +void putshort (u_int16_t, u_char *); +const char * p_class (int); +const char * p_time (u_int32_t); +const char * p_type (int); +const char * p_rcode (int); +const u_char * p_cdnname (const u_char *, const u_char *, int, FILE *); +const u_char * p_cdname (const u_char *, const u_char *, FILE *); +const u_char * p_fqnname (const u_char *cp, const u_char *msg, + int, char *, int); +const u_char * p_fqname (const u_char *, const u_char *, FILE *); +const char * p_option (u_long option); +char * p_secstodate (u_long); +int dn_count_labels (const char *); +int dn_expand (const u_char *, const u_char *, const u_char *, + char *, int); +u_int res_randomid (void); +int res_nameinquery (const char *, int, int, + const u_char *, const u_char *); +int res_queriesmatch (const u_char *, const u_char *, + const u_char *, const u_char *); +const char * p_section (int section, int opcode); +/* Things involving a resolver context. */ +int res_ninit (res_state); +int res_nisourserver (const res_state, + const struct sockaddr_in *); +void fp_resstat (const res_state, FILE *); +void res_npquery (const res_state, const u_char *, int, FILE *); +const char * res_hostalias (const res_state, const char *, + char *, size_t); +int res_nquery (res_state, + const char *, int, int, u_char *, int); +int res_nsearch (res_state, const char *, int, + int, u_char *, int); +int res_nquerydomain (res_state, + const char *, const char *, int, int, + u_char *, int); +int res_nmkquery (res_state, + int, const char *, int, int, const u_char *, + int, const u_char *, u_char *, int); +int res_nsend (res_state, const u_char *, int, u_char *, int); +int res_nsendsigned (res_state, const u_char *, int, + ns_tsig_key *, u_char *, int); +int res_findzonecut (res_state, const char *, ns_class, int, + char *, size_t, struct in_addr *, int); +void res_nclose (res_state); + +#endif /* 0 */ +#endif /* !_RESOLV_H_ */