diff options
Diffstat (limited to 'contrib/bind/bin/named/db_defs.h')
| -rw-r--r-- | contrib/bind/bin/named/db_defs.h | 108 |
1 files changed, 92 insertions, 16 deletions
diff --git a/contrib/bind/bin/named/db_defs.h b/contrib/bind/bin/named/db_defs.h index ab93480..9fe2021 100644 --- a/contrib/bind/bin/named/db_defs.h +++ b/contrib/bind/bin/named/db_defs.h @@ -1,9 +1,10 @@ /* * from db.h 4.16 (Berkeley) 6/1/90 - * $Id: db_defs.h,v 8.17 1998/02/17 17:17:43 vixie Exp $ + * $Id: db_defs.h,v 8.36 1999/08/26 18:42:32 vixie Exp $ */ -/* Copyright (c) 1985, 1990 +/* + * Copyright (c) 1985, 1990 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -35,7 +36,8 @@ * SUCH DAMAGE. */ -/* Portions Copyright (c) 1993 by Digital Equipment Corporation. +/* + * Portions Copyright (c) 1993 by Digital Equipment Corporation. * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above @@ -54,7 +56,8 @@ * SOFTWARE. */ -/* Portions Copyright (c) 1996, 1997 by Internet Software Consortium. +/* + * 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 @@ -74,12 +77,12 @@ * Global definitions for data base routines. */ -#define INVBLKSZ 7 /* # of namebuf pointers per block */ -#define INVHASHSZ 919 /* size of inverse hash table */ - /* max length of data in RR data field */ #define MAXDATA (2*MAXDNAME + 5*INT32SZ) + /* max length of data in a TXT RR segment */ +#define MAXCHARSTRING 255 + #define DB_ROOT_TIMBUF 3600 #define TIMBUF 300 @@ -87,6 +90,16 @@ #define DICT_MAXLENGTH 127 #define DICT_INSERT_P 0x0001 +/* Average hash chain depths. */ +#define AVGCH_MARSHAL 5 +#define AVGCH_NLOOKUP 3 + +/* Nonstandard maximum class to force better packing. */ +#define ZONE_BITS 24 +#define CLASS_BITS 8 +#define ZONE_MAX ((1<<ZONE_BITS)-1) +#define CLASS_MAX ((1<<CLASS_BITS)-1) + /* * Hash table structures. */ @@ -101,17 +114,18 @@ struct databuf { * primary and secondary zones), * d_ttl is the time to live. */ - unsigned d_flags :7; /* see below */ + unsigned d_zone :ZONE_BITS; /* zone number or 0 for the cache */ + unsigned d_class :CLASS_BITS; /* class number (nonstandard limit) */ + unsigned d_flags :4; /* DB_F_{??????} */ + unsigned d_secure :2; /* DB_S_{??????} */ unsigned d_cred :3; /* DB_C_{??????} */ unsigned d_clev :6; - u_int16_t d_zone; /* zone number or 0 for the cache */ - int16_t d_class; /* class number */ + unsigned d_rcode :4; /* rcode for negative caching */ + unsigned d_mark :3; /* place to mark data */ int16_t d_type; /* type number */ int16_t d_size; /* size of data area */ u_int32_t d_rcnt; - unsigned d_rcode :4; /* rcode for negative caching */ - unsigned d_mark :12; /* place to mark data */ - u_int16_t d_nstime; /* NS response time, milliseconds */ + u_int16_t d_nstime; /* NS response time, milliseconds */ u_char d_data[sizeof(void*)]; /* dynamic (padded) */ }; #define DATASIZE(n) (sizeof(struct databuf) - sizeof(void*) + n) @@ -131,6 +145,7 @@ struct databuf { #define DB_F_HINT 0x01 /* databuf belongs to fcachetab */ #define DB_F_ACTIVE 0x02 /* databuf is linked into a cache */ #define DB_F_FREE 0x04 /* databuf has been freed */ +#define DB_F_LAME 0x08 /* databuf may refer to lame server */ /* * d_cred definitions @@ -141,6 +156,13 @@ struct databuf { #define DB_C_ADDITIONAL 1 /* additional data */ #define DB_C_CACHE 0 /* cache - worst */ +/* + * d_secure definitions + */ +#define DB_S_SECURE 2 /* secure (verified) data */ +#define DB_S_INSECURE 1 /* insecure data */ +#define DB_S_FAILED 0 /* data that failed a security check */ + struct namebuf { u_int n_hashval; /* hash value of _n_name */ struct namebuf *n_next; /* linked list */ @@ -162,6 +184,51 @@ struct hashbuf { #define HASHSHIFT 3 #define HASHMASK 0x1f +#define HASHROTATE(v) \ + (((v) << HASHSHIFT) | ((v) >> ((sizeof(v) * 8) - HASHSHIFT))) +#define HASHLOWER(c) ((isascii(c) && isupper(c)) ? tolower(c) : (c)) +#define HASHIMILATE(v,c) ((v) = (HASHROTATE(v)) + (HASHLOWER(c) & HASHMASK)) + +#define TSIG_BUF_SIZE 640 +#define TSIG_SIG_SIZE 20 + +struct tsig_record { + u_int8_t sig[TSIG_SIG_SIZE]; + struct dst_key *key; + int siglen; +}; + +struct sig_record { + u_int16_t sig_type_n; + u_int8_t sig_alg_n, sig_labels_n; + u_int32_t sig_ottl_n, sig_exp_n, sig_time_n; + u_int16_t sig_keyid_n; +}; + +/* This is the wire format size of "struct sig_record", i.e., no padding. */ +#define SIG_HDR_SIZE 18 + +struct dnode { + struct databuf *dp; + struct dnode *dn_next; + int line; + char *file; +}; + +typedef struct dnode * dlist; + +struct db_rrset { + dlist rr_list; + dlist rr_sigs; + char *rr_name; + int16_t rr_class; + int16_t rr_type; + struct db_rrset *rr_next; +}; +#define DBHASHSIZE(s) (sizeof(struct hashbuf) + \ + (s-1) * sizeof(struct db_rrset *)) + +#define SIG_COVERS(dp) (ns_get16(dp->d_data)) /* * Flags to updatedb @@ -172,6 +239,8 @@ struct hashbuf { #define DB_NOTAUTH 0x08 /* must not update authoritative data */ #define DB_NOHINTS 0x10 /* don't reflect update in fcachetab */ #define DB_PRIMING 0x20 /* is this update the result of priming? */ +#define DB_MERGE 0x40 /* make no control on rr in db_update (for ixfr) */ +#define DB_REPLACE 0x80 /* replace data if it exists */ #define DB_Z_CACHE 0 /* cache-zone-only db_dump() */ #define DB_Z_ALL 65535 /* normal db_dump() */ @@ -194,6 +263,8 @@ struct hashbuf { #ifdef BIND_UPDATE #define SERIAL (-11) #endif +#define CNAMEANDOTHER (-12) +#define DNSSECFAIL (-13) /* db_set_update */ /* * getnum() options @@ -203,13 +274,18 @@ struct hashbuf { #define GETNUM_SCALED 0x02 /* permit "k", "m" suffixes, scale result */ /* + * db_load() options + */ +#define ISNOTIXFR 0 +#define ISIXFR 1 +#define ISAXFRIXFR 2 + +/* * Database access abstractions. */ #define foreach_rr(dp, np, ty, cl, zn) \ for ((dp) = (np)->n_data; (dp) != NULL; (dp) = (dp)->d_next) \ - if ((cl) != C_ANY && (cl) != (dp)->d_class) \ - continue; \ - else if ((ty) != T_ANY && (ty) != (dp)->d_type) \ + if (!match(dp, (cl), (ty))) \ continue; \ else if (((zn) == DB_Z_CACHE) \ ? stale(dp) \ |
